Skip to main content
  • Systematic Review
  • Open access
  • Published:

Chinese medicine Gushukang capsule for treating primary osteoporosis: a systematic review and meta-analysis

Abstract

Objective

To systematically evaluate the efficacy and safety of Gushukang (GSK) capsules in the treatment of primary osteoporosis.

Methods

Randomized controlled trials related to the treatment of primary osteoporosis were collected through online retrieval of the China National Knowledge Infrastructure (CNKI), Wanfang database, Chinese Biomedical Literature Database (Sino-Med), VIP, US National Library of Medicine (PubMed), Web of Science and Cochrane library. The literature was searched from January 1, 2000, to March 17, 2022. The risk bias and quality of the trials included in the meta-analysis were evaluated with the Cochrane Collaboration's risk assessment tool. The effect size was expressed as risk ratios (RRs) or mean differences (MDs) with 95% confidence intervals (CIs).

Results

A total of 24 randomized controlled clinical trials (RCTs) were incorporated into this systematic review. The 2363 patients were all primary osteoporosis patients, of whom 1197 were in the observation group and 1166 were in the control group. GSK capsule group was superior to conventional medication group in improving beta type I collagen carboxy-terminal peptide (β-CTX) (MD − 0.28, 95% CI [− 0.31, − 0.25]), while in improving prepeptide of type I procollagen (PINP), conventional medications group was superior to GSK capsule group (MD − 1.37, 95% CI [− 1.92, − 0.82]), and there were no significant differences between the two groups in overall efficacy (OE) (OR 1.62, 95% CI [0.89, 2.98]), increase of bone mineral density (BMD) (lumbar spine: MD − 0.02, 95% CI [− 0.08, 0.04]; femoral neck: MD − 0.01, 95% CI [− 0.07, 0.05]; hip: MD 0.01, 95% CI [− 0.02, 0.02]), enhancement of alkaline phosphatase (ALP) (MD − 1.37, 95% CI [− 13.29, 10.55]), serum calcium (S-Ca) (MD 0.02, 95% CI [− 0.13, 0.17]), bone glutamyl protein (BGP) (MD 3.75, 95% CI [− 12.26, 19.76]), safety (OR 0.37, 95% CI [0.07, 2.02]) and pain relief (MD 0.32, 95% CI [− 0.59, 1.22]). GSK capsule combined with conventional medications group was superior to conventional medications group in improvement of OE (OR 3.19, 95% CI [2.20, 4.63]), BMD (lumbar spine (MD 0.06, 95% CI [0.02, 0.10]), femoral neck (MD 0.08, 95% CI [0.03, 0.13]), hip (MD 0.14, 95% CI [0.08, 0.21]) and other parts (MD 0.04, 95% CI [0.03, 0.05]), ALP (MD − 5.56, 95% CI [− 10.08, − 1.04]), β-CTX (MD − 0.15, 95% CI [− 0.18, − 0.12]) and pain relief (MD − 1.25, 95% CI [− 1.83, − 0.68]), but there was no difference in S-Ca (MD 0.02, 95% CI [− 0.13, 0.17]), BGP (MD 1.30, 95% CI [− 0.29, 2.89]), PINP (MD 1.30, 95% CI [− 0.29, 2.89]), serum phosphorus (S-P) (MD 0.01, 95% CI [− 0.09, 0.12]) and safety (OR 0.71, 95% CI [0.38, 1.35]).

Conclusion

GSK capsules can effectively treat primary osteoporosis, and when combined with conventional medications, the drug significantly increased bone mineral density, relieved pain and improved bone metabolism-related indicators in primary osteoporosis patients with better efficacy. However, due to the inclusion of Chinese literature and possible publication bias, the reliability of conclusions still requires more high-quality RCTs to enhance.

Introduction

Primary osteoporosis (POP) is a bone metabolic disorder that is characterized by decreased bone mass and destruction of bone tissue microstructure, leading to increased bone fragility and fracture risk [1]. POP is generally divided into three categories: postmenopausal osteoporosis (type I), age-related osteoporosis (type II) and idiopathic osteoporosis. Type I and type II are the most common types of primary osteoporosis [2]. It was predicted that by the year 2050, 25% of China’s population will be over the age of 60 years old, and the number of POP patients will reach 212 million [3]. Furthermore, the number of POP-related fractures will also increase dramatically in the coming decades [4].

The main therapies for primary osteoporosis include physical exercise, nutritional supplements and anti-osteoporosis drugs, and medication is the most recommended treatment [5, 6]. It has been found that physical exercise in patients with POP could improve their BMD, strength, agility, and quality of life and reduce the risk of falling [7]. Moreover, traditional Chinese exercise, such as Ba Duan Jin, was helpful in improving BMD, improving balance and relieving pain in patients with POP [8]. A recent narrative review found that compared to taking vitamin D supplements alone, simultaneous supplementation with vitamin D and calcium was more effective in improving BMD [9]. Furthermore, calcium carbonate D3 combined with nutritional supplementation could improve POP patients’ OE, BMD and bone metabolism [10]. Current FDA-approved pharmacologic therapies and drugs for osteoporosis include bisphosphonates (e.g. alendronate), estrogen-related therapy (e.g., raloxifene conjugated estrogens), parathyroid hormone analogs (teriparatide), receptor activator of nuclear factor-κ B ligand (RANKL) inhibitor (e.g. denosumab), sclerostin inhibitor (e.g. romosozumab) and calcitonin salmon [11]. Specifically, for age-related osteoporosis, orthopedics-geriatrics co-management, appropriate weight training and timely surgery were suggested recently [12]. For postmenopausal osteoporosis, biomarkers of bone turnover, such as ALP, PINP and β-CTX, might play a role in predicting the prognosis of osteoporosis [13, 14]. Among denosumab, pamidronate and zoledronate, denosumab was found to obviously influence the BMD of the hip and femur and improve the BMD of the spine most obviously [15], and it was found that denosumab could significantly reduce nonvertebral fractures [16].

In recent years, herbal medicine, such as the traditional Chinese medicine GSK, has attracted the interest of medical researchers due to its low cost and few side effects. GSK consists of several traditional herbs, including Longspur Epimedium (Yinyanghuo), Rhizoma Atractylodis (Cangzhu), Radix Astragali (Huangqi) and Rhizoma Drynariae (Gusuibu) [17, 18]. Containing naringin and icariin, GSK could effectively stimulate the production of vitamin D [19]. Another study found that a bioactive compound, icariin, which could be isolated from Epimedium koreanum (Chaoxianyin Yang Huo), ameliorated estrogen deficiency-induced osteoporosis by promoting insulin-like growth factor 1 (IGF-I) signaling in bone [20]. Moreover, one study recognized the systematic bone protection of GSK by inhibiting osteoclast formation and stimulating osteoblast formation, laying the foundation for developing new drugs to treat POP [21]. According to traditional Chinese medicine, POP is caused by deficiency of the liver, spleen and kidney and stagnation of Qi and blood, so the treatment is based on warming the kidney and liver, strengthening the spleen and resolving blood stasis [22]. On the basis of this theory, discriminatory treatment often achieves good results with a high safety level [23]. GSK is a pure traditional Chinese medicine with the principle of tonifying the kidney and benefiting Qi, invigorating the blood and strengthening the bones [24].

Currently, most findings about GSK are positive, but the quality of some trials is not reliable enough, and there is not a systematic analysis for the drug thus far. As a result, we sought to systematically evaluate the efficacy and safety of GSK in treating POP with the aim of providing an evidence-based basis for the rational clinical use of the drug in the prevention and treatment of POP.

Methods and materials

The meta-analysis was conducted on the basis of the PRISMA 2020 guidelines [25]. The protocol of the meta-analysis has been registered at the International Platform of Registered Systematic Review and Meta-analysis Protocols (INPLASY) (Registration number: INPLASY202370023) and is available in full on inplasy.com (https://inplasy.com/inplasy-2023-7-0023/) (Additional file 1).

Search strategy

We searched CNKI, VIP, Sino-Med, Wanfang database, PubMed, Cochrane library and Web of Science from their foundation to March 20th, 2023. The search terms were used individually or combined as follows: “osteoporosis”, “bone loss”, “bone disease”, “post-traumatic osteoporosis”, “senile osteoporosis”, “age-related osteoporosis”, “postmenopausal osteoporosis”, “Gushukang” and “randomized controlled trial”. Chinese search terms included “guzhishusong”, “Gushukang”, and “suijiduizhaoshiyan”.

To improve the completeness of the literature search, we adapted the search strategy to the different characteristics of the databases and thus performed a comprehensive search. The search strategy for PubMed is shown in the “Appendix” at the end of the paper.

Inclusion and exclusion criteria

Inclusion criteria

(1) Study design: randomized controlled trials in all languages, and blinding was needed; (2) study population: patients diagnosed with primary osteoporosis [26]; (3) intervention: the observation groups were treated with GSK or GSK combined with conventional medications, while the control groups were treated with conventional medications.

Exclusion criteria

(1) Original paper: duplicate studies or types of literature such as reviews, editorials, letters, notes and statements. (2) Trial subjects: laboratory studies or animal experiments. (3) Trial type: nonrandomized controlled trials. (4) Intervention: GSK capsules were used in the control group. (5) Trial outcome: data missing or obviously incorrect.

Outcome measures

Primary outcomes

(1) OE, the calculation formula was (Effective patients’ number/Total patients’ number) * 100%; (2) BMD, measured by dual energy X-ray bone densitometry, but the brand of the testing instrument may vary from different hospitals; (3) Visual analog score (VAS).

Secondary outcomes

(1) PINP; (2) β-CTX; (3) BGP; (4) S-P; (5) S-Ca; (6) ALP; (7) Adverse reactions (AE).

Study selection

Two authors independently screened the titles and abstracts of all literature collected and reviewed the studies for eligibility according to the inclusion and exclusion criteria, with another researcher being consulted in the event of disagreement over the ranking of a particular piece of literature.

Data extraction

Two researchers (TP Liu and YF Zhao) extracted data independently (including OE, BMD, ALP, VAS score, S-Ca, S-P, BGP, β-CTX, PINP and AE) with a data form made by Microsoft Excel 2021. The extracted data were checked, and any disagreements were discussed and resolved with F Yang.

Risk of bias assessment

Two researchers (T-PL and M-LY) assessed the risk of the trials included with the Cochrane Collaboration's risk of bias assessment tool [27], which was assessed on six main items: (1) random allocation method; (2) allocation concealment scheme; (3) blinded implementation; (4) completeness of outcome data; (5) selective reporting of study results; and (6) other sources of bias issues to determine the level of risk of bias in the studies. If there were disagreements, a third author (FY) was invited into the discussion to determine the risk.

Data analysis and synthesis

Review Manager (version: 5.4.1) was chosen to analyze the data. Heterogeneity was tested by the I2 value of those trials. A fixed-effects model was applied to statistical analysis if there was no statistical heterogeneity among the trials (I2 ≤ 50%), while a random-effects model was used when high heterogeneity was proven (I2 > 50%). Inverted funnel plot analysis was conducted for publication bias. The two dichotomous variables, OE and adverse effects, were analyzed with the odds ratio (OR) with 95% confidence intervals, while the remaining continuous variable outcome indicators (BMD, VAS score, PINP, β-CTX, ALP, S-Ca, S-P and BGP) were analyzed with the mean difference (MD) and 95% confidence intervals (CI). Specifically, considering that BMD may vary in different parts of the skeletal system, subgroup analysis was performed by area, including the lumbar spine, femoral neck, hip and other parts (greater trochanter of femur, trochanter of femur and Ward’s triangle).

Results

Study selection

A total of 771 papers were retrieved according to the established search strategy, including 711 articles in Chinese and 60 articles in English. By scanning the titles and abstracts, 232 duplicates were excluded, and through further checking of the full text, 515 of them did not meet the inclusion criteria and were excluded. The flowchart (Fig. 1) with the number of included studies at each step was established, including reasons for excluding studies. Twenty-four trials were finally included. The flow chart (Fig. 1) was developed below, listing the number of studies included at each step, including reasons for excluding studies. Twenty-four trials were ultimately included.

Fig. 1
figure 1

Flowchart of the study selection process

Study characteristics

A total of 24 RCTs were included, and all 2363 cases included were patients with primary osteoporosis, of which 1197 were observations and 1166 were controls. The maximum sample size of individual studies was 98, and the minimum sample size was 19. Nine [28,29,30,31,32,33,34,35,36] studies found adverse reactions, and one [29] specified no adverse reactions. The conventional treatments in the control groups were conventional medications, including calcium D, alfacalcidol, nylstilbestrol, alendronate sodium, vitamin D and salmon calcitonin, as well as the combination of some of them. Specific information on the trials included in this study is shown in Table 1.

Table 1 Characteristics of randomized controlled trials on GSK capsule for osteoporosis

Risk of bias of individual studies

Figures 2 and 3 were drawn to show each included study’s risk of bias. All twenty-four trials were grouped with a randomized method, of which 10 used a random number table method [30, 31, 33, 35, 36, 38, 39, 44, 47, 50] and the remaining fourteen did not describe a specific randomization method [28, 29, 32, 34, 37, 40,41,42,43, 45,46,47, 49, 51]. None of the allocation concealment schemes were described; none accounted for whether patients and investigators were blinded; and none accounted for whether outcomes were assessed. None described data completeness. All reported on prespecified indicators. None of the trials described sources of bias.

Fig. 2
figure 2

Risk of bias summary

Fig. 3
figure 3

Risk of bias graph

Primary outcomes

Overall efficiency (OE)

Fifteen trials reported OE (Fig. 4), and there was no heterogeneity for those two comparisons (P = 0.97, I2 = 0%)/(P = 0.17, I2 = 41%), so a fixed-effects model was used to analyze the trials. GSK plus conventional medications (alendronate sodium, Caltrate D (containing calcium carbonate and vitamin D3), salcatonin, estradiol valerate, vitamin D, alfacalcidol and rocaltrol, used alone or in combination) were more effective than conventional medications (551/594 vs 456/569; RR 1.16, 95% CI [1.11, 1.21]). However, there was no obvious difference between GSK and conventional medications (141/163 vs 129/161; RR 1.08, 95% CI [0.98, 1.19]).

Fig. 4
figure 4

Forest plots of OE

Secondary outcomes

Bone mineral density

Seventeen trials reported BMD (Figs. 5, 6), sorted by different areas, such as the lumbar spine, femoral neck, hip and other parts (femoral trochanter, femoral trochanter and Ward’s triangle). There was no heterogeneity for those two comparisons (P = 0.41, I2 = 4%)/(P = 0.94, I2 = 0%); thus, a fixed-effects model was used to analyze the trials. Compared with conventional medications, GSK plus conventional medications increased BMD levels in the lumbar spine (conventional medications include rocaltrol + alendronate sodium, alendronate sodium, salcatonin + estradiol valerate, alendronate sodium + Caltrate D, sodium + rocaltrol + Caltrate D, Caltrate D, vitamin D, alfacalcidol and estrogen + vitamin D) (MD 0.06, 95% CI [0.02, 0.10]), femoral neck (conventional medications include rocaltrol + alendronate sodium, salcatonin + estradiol valerate, alendronate sodium + rocaltrol + Caltrate D, alfacalcidol and Caltrate D) (MD 0.08, 95% CI [0.03, 0.13]), hip (conventional medications include alfacalcidol and Caltrate D) (MD 0.14, 95% CI [0.08, 0.21]) and other parts (conventional medications include alfacalcidol and Caltrate D) (MD 0.04, 95% CI [0.03, 0.05]). However, no variations were found in the contrast of GSK and conventional medications in those three areas (lumbar spine: MD [− 0.02, 95% CI [− 0.08, 0.04]; femoral neck: MD − 0.01, 95% CI [− 0.07, 0.05]; hip: MD 0.01, 95% CI [− 0.02, 0.02]).

Fig. 5
figure 5

Forest plots of BMD (GSK + Conventional Medicine vs Conventional Medicine)

Fig. 6
figure 6

Forest plots of BMD (GSK vs conventional medicine)

Visual analog score (VAS)

The VAS score (0 ~ 10 score) was used by seven studies to measure pain, as there was low heterogeneity for those two comparisons (P = 0.22, I2 = 31%)/(P = 0.32, I2 = 0%); a fixed-effects model was used to analyze the trials. Figure 7 shows that compared with conventional medications, GSK plus conventional medications (nilestriol, Caltrate D + salcatonin, vitamin D and Caltrate D) significantly relieved pain (MD − 1.25, 95% CI [− 1.83, − 0.68]). Compared to vitamin D or alendronate sodium + rocaltrol + Caltrate D, GSK alone did not show any advantage (MD 0.32, 95% CI [− 0.59, 1.22]).

Fig. 7
figure 7

Forest plots of VAS scores

Biochemical indicators

Serum calcium (S-Ca) and phosphorus (S-P) levels

For the two indicators, there was no heterogeneity in those trials, so a fixed-effects model was used to analyze the data (Figs. 8, 9). No comparison indicated a difference between GSK plus conventional medications and conventional medications in S-Ca (MD 0.03, 95% CI [− 0.09, 0.14]) and S-P (MD 0.01, 95% CI [− 0.09, 0.12]), yet in three trials, S-Ca levels in the GSK plus conventional medications (Caltrate D, alendronate sodium and rocaltrol) group were obviously higher than those in the conventional medications alone group.

Fig. 8
figure 8

Forest plots of S-Ca level

Fig. 9
figure 9

Forest plots of S-P level

Alkaline phosphatase (ALP) and beta type I collagen carboxy-terminal peptide (β-CTX) levels

For ALP, there was low heterogeneity among the two comparisons (P = 0.13, I2 = 36%)/(P = 0.83, I2 = 0%), and for β-CTX, there was no heterogeneity among the studies (P = 0.48, I2 = 0%), so a fixed-effects model was used to analyze the trials. GSK plus conventional medications (rocaltrol + alendronate sodium, alendronate sodium + Caltrate D, Caltrate D, alfacalcidol and rocaltrol) improved ALP levels compared with conventional medications (MD − 5.56, 95% CI [− 10.08, − 1.04]), but GSK alone did not show an advantage over conventional medications (MD − 1.37, 95% CI [− 13.29, 10.55]). For β-CTX, regardless of whether conventional medications were used (MD − 0.15, 95% CI − 0.18, − 0.12]) or not (MD − 0.28, 95% CI [− 0.31, − 0.25]), GSK had better effects (Fig. 10, 11).

Fig. 10
figure 10

Forest plots of ALP levels

Fig. 11
figure 11

Forest plots of β-CTX levels

Bone glutamyl protein (BGP) and prepeptide of type I procollagen (PINP) levels

For BGP and PINP, there was high heterogeneity among the studies (P = 0.004, I2 = 77%)/(P = 0.11, I2 = 60%); thus, a random-effects model was used to analyze the data (Figs. 12, 13). We found that GSK plus conventional medications did not improve BGP levels more than conventional medications (MD 4.82, 95% CI [− 1.08, 10.27]), nor did GSK alone (MD 3.75, 95% CI [− 12.26, 19.76]). For PINP, the results were conflicting. It was decreased in GSK plus rocaltrol compared to rocaltrol but was higher in GSK plus alendronate sodium + rocaltrol + Caltrate D compared to conventional medications alone. It was also shown that alendronate sodium + rocaltrol + Caltrate D had a better effect than GSK alone on improving the level (MD −1.37, 95% CI [− 1.92, − 0.82]).

Fig. 12
figure 12

Forest plots of BGP level

Fig. 13
figure 13

Forest plots of PINP levels

Adverse events (AE)

As shown in Fig. 14, there was high heterogeneity among the trials of the GSK-supplemented conventional medication group (or used alone) and the conventional group (P = 0.004/0.005, I2 = 67%/64%), so a random-effects model was used to analyze the studies. No obvious difference was found in the overall incidence of any adverse events between GSK (used alone (RR 0.40, 95% CI [0.08, 1.94]) or as add-on therapy (RR 0.76, 95% CI [0.47, 1.24])) and conventional medications. The reported adverse events in the GSK group included five cases of headache, eleven cases of losing appetite, eleven cases of flushing, thirty-five cases of gastrointestinal reactions and seven cases of constipation, and those in the conventional medication group included seventeen cases of headache, eleven cases of flushing, twenty-one cases of muscle pain, seventeen cases of fever and twenty-nine cases of gastrointestinal reaction.

Fig. 14
figure 14

Forest plots of AE

Publication bias assessment

The number of individual outcome index studies included in this systematic evaluation that was more than 10 included OE and bone mineral density, all of which belonged to the comparison of the GSK plus conventional medications group with the conventional medications group, so funnel plots were made to assess their publication bias. As shown in Figs. 15 and 16, the funnel plots of OE were basically symmetrical on the left and right, so there was no publication bias in clinical efficacy; however, the funnel plots of BMD were asymmetrical on the left and right, indicating that there might be publication bias among the studies, probably due to the negative results of some studies not being published.

Fig. 15
figure 15

Funnel diagram of OE

Fig. 16
figure 16

Funnel diagram of BMD

Discussion

Generally, the GSK capsule is a safe treatment for POP patients who can help to improve clinical efficacy, regulate bone metabolism and reduce pain as an add-on therapy when compared to conventional drugs such as alfacalcidol, alendronate sodium, salcatonin, nilestriol and vitamin D alone or in combination. Furthermore, GSK capsules plus conventional drugs worked better than conventional drugs alone. It did not have a significant impact on BGP, S-Ca or S-P levels. The results regarding PINP levels were controversial, which might be due to inadequate data.

As a Chinese medicine, the GSK capsule is mainly made of a few Chinese herbs, making its composition difficult to fully detect and analyze. By treating osteoporosis rats with GSK, Lin et al. found that GSK capsules modulated differentially abundant metabolites and proteins involved in nucleotide metabolism, immune processes and general cellular processes to affect bone metabolism and played a significant role in bone protection [52]. Through animal and in vitro cell experiments, Li et al. found that GSK may increase bone mass by promoting bone formation and H-vessel formation and by inhibiting bone resorption, and they believed that these functions may be related to the activity of HIF-1α [53]. Moreover, it was confirmed that treatment of OVX rats with GSK could significantly enhance the BMP-2/Smad signaling pathway by upregulating the expression of BMP-2, p-Smad1, p-Smad5, Osterix and Runx2, and it could also inhibit osteoblast apoptosis by upregulating Bcl-xl and downregulating Bak, suggesting that GSK has a protective effect on promoting bone formation and preventing osteoblast apoptosis. The underlying mechanism may be its regulation of the BMP-2/Smad signaling pathway and the Bcl2 family [54].

A previous meta-analysis reviewed the efficacy and safety of GSK capsules in treating POP [55]. The improvement in S-Ca levels from the GSK group was observed, but the levels of S-P, ALP, BMD and VAS score were found to have no significant difference with conventional medications. Furthermore, the study did not report PINP and β-CTX, which are of vital importance in the progress of bone formation and disintegration. Moreover, the GSK group of the review included both GSK alone and GSK plus conventional medications, which were not specific enough. In contrast to that previous review, there are some advantages in ours: (1) the first meta-analysis on this topic written in English and only fully randomized investigational clinical trials were included, making the results more objective; (2) our outcomes additionally included two indispensable biochemical indicators: PINP and β-CTX, which are important in bone metabolism; (3) our analysis was refined to the comparison of osteoporosis and osteoporosis plus conventional treatment versus conventional treatment, which made the comparison differences more concrete.

However, there are some limitations in our review: (1) all of the studies included in our meta-analysis were in Chinese of medium to low quality, and there was a lack of relevant literature in other languages, which might lead to limitations in scope and reliability of conclusions; (2) the number of comparisons between the GSK group and the conventional treatment group was small, so there was insufficient evidence for the efficacy of osteoporosis alone in the treatment of primary osteoporosis; (3) fracture was the final outcome of osteoporosis development, but none of the included studies used fracture incidence as an outcome indicator, and fracture incidence-related indicators such as β-CTX and PINP were mentioned, but the number of included studies was too small and thus the strength of evidence was insufficient; (4) the studies included were not rigorously implemented or had inconsistent standards for randomization, blinding, allocation concealment, and documentation of outcome indicators, with only one mentioning "double-blind", which may cause an impact on the credibility of the results; (5) the small individual sample sizes of the included trials (19–89 patients) might be insufficient to derive effect estimates; and (6) the wide variety of conventional drugs used in the control group, including different combinations of manufacturers and dosages, made it difficult to analyze them in subgroups and study their efficacy separately.

Clinicians should be aware that the evidence to date for GSK capsules is relatively limited due to the small size of the trials or the high risk of bias. Thus, we are looking forward to future related studies, and there will be more RCTs with large samples and multiple centers. Moreover, higher standards of trial implementation and result recording will be unified to further improve the quality of the study, which will in turn improve the accuracy and credibility strength of the evaluation of the updated system afterwards.

Conclusion

In our review, it is suggested that the GSK capsule effectively and safely treated primary osteoporosis, while combined with conventional medications, the drug significantly increased bone mineral density, relieved pain and improved bone metabolism-related indicators in patients with primary osteoporosis with better efficacy. However, due to the inclusion of Chinese literature and possible publication bias, the strength of the conclusion still requires more high-quality RCTs.

Availability of data and materials

The data that support the findings of this study are available from the corresponding author.

References

  1. Kanis JA, Melton LJ 3rd, Christiansen C, Johnston CC, Khaltaev N. The diagnosis of osteoporosis. J Bone Miner Res. 1994;9(8):1137–41. https://doi.org/10.1002/jbmr.5650090802.

    Article  CAS  PubMed  Google Scholar 

  2. Glaser DL, Kaplan FS. Osteoporosis. Definition and clinical presentation. Spine (Phila Pa 1976). 1997;22(24 Suppl):12S-16S. https://doi.org/10.1097/00007632-199712151-00003.

    Article  CAS  PubMed  Google Scholar 

  3. Lin X, Xiong D, Peng YQ, Sheng ZF, Wu XY, Wu XP, et al. Epidemiology and management of osteoporosis in the People’s Republic of China: current perspectives. Clin Interv Aging. 2015;10:1017–33. https://doi.org/10.2147/CIA.S54613.

    Article  PubMed  PubMed Central  Google Scholar 

  4. Roux C, Briot K. The crisis of inadequate treatment in osteoporosis. Lancet Rheumatol. 2020;2(2):e110–9. https://doi.org/10.1016/S2665-9913(19)30136-5.

    Article  Google Scholar 

  5. Camacho PM, Petak SM, Binkley N, Diab DL, Eldeiry LS, Farooki A, et al. American Association of Clinical Endocrinologists/American College of Endocrinology Clinical Practice Guidelines for the diagnosis and treatment of postmenopausal osteoporosis-2020 update. Endocr Pract. 2020;26(Suppl 1):6–8. https://doi.org/10.4158/GL-2020-0524SUPPL.

    Article  Google Scholar 

  6. Qaseem A, Forciea MA, McLean RM, Denberg TD, Barry MJ, Cooke M, et al. Treatment of low bone density or osteoporosis to prevent fractures in men and women: a clinical practice guideline update from the American College of physicians. Ann Intern Med. 2017;166(11):818–39. https://doi.org/10.7326/M15-1361.

    Article  PubMed  Google Scholar 

  7. Linhares DG, Borba-Pinheiro CJ, Castro JBP, Santos AOBD, Santos LLD, Cordeiro LS, et al. Effects of multicomponent exercise training on the health of older women with osteoporosis: a systematic review and meta-analysis. Int J Environ Res Public Health. 2022;19(21):14195. https://doi.org/10.3390/ijerph192114195.

    Article  PubMed  PubMed Central  Google Scholar 

  8. Sun C, Qi B, Huang X, Chen M, Jin Z, Zhang Y, et al. Baduanjin exercise: a potential promising therapy toward osteoporosis. Front Med (Lausanne). 2022;9: 935961. https://doi.org/10.3389/fmed.2022.935961.

    Article  PubMed  Google Scholar 

  9. Voulgaridou G, Papadopoulou SK, Detopoulou P, Tsoumana D, Giaginis C, Kondyli FS, et al. Vitamin D and calcium in osteoporosis, and the role of bone turnover markers: a narrative review of recent data from RCTs. Diseases. 2023;11(1):29. https://doi.org/10.3390/diseases11010029.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  10. Ni H, Zhang S, Niu X, Dai S. Meta-analysis of effects of nutritional intervention combined with calcium carbonate D3 tablets on bone mineral density, bone metabolism, and curative effect in patients with osteoporosis. Contrast Media Mol Imaging. 2022;2022:3670007. https://doi.org/10.1155/2022/3670007.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  11. LeBoff MS, Greenspan SL, Insogna KL, Lewiecki EM, Saag KG, Singer AJ, et al. The clinician’s guide to prevention and treatment of osteoporosis. Osteoporos Int. 2022;33(10):2049–102. https://doi.org/10.1007/s00198-021-05900-y.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  12. Migliorini F, Giorgino R, Hildebrand F, Spiezia F, Peretti GM, Alessandri-Bonetti M, et al. Fragility fractures: risk factors and management in the elderly. Medicina (Kaunas). 2021;57(10):1119. https://doi.org/10.3390/medicina57101119.

    Article  PubMed  Google Scholar 

  13. Migliorini F, Maffulli N, Spiezia F, Peretti GM, Tingart M, Giorgino R. Potential of biomarkers during pharmacological therapy setting for postmenopausal osteoporosis: a systematic review. J Orthop Surg Res. 2021;16(1):351. https://doi.org/10.1186/s13018-021-02497-0.

    Article  PubMed  PubMed Central  Google Scholar 

  14. Migliorini F, Maffulli N, Spiezia F, Tingart M, Maria PG, Riccardo G. Biomarkers as therapy monitoring for postmenopausal osteoporosis: a systematic review. J Orthop Surg Res. 2021;16(1):318. https://doi.org/10.1186/s13018-021-02474-7.

    Article  PubMed  PubMed Central  Google Scholar 

  15. Migliorini F, Maffulli N, Colarossi G, Eschweiler J, Tingart M, Betsch M. Effect of drugs on bone mineral density in postmenopausal osteoporosis: a Bayesian network meta-analysis. J Orthop Surg Res. 2021;16(1):533. https://doi.org/10.1186/s13018-021-02678-x.

    Article  PubMed  PubMed Central  Google Scholar 

  16. Migliorini F, Colarossi G, Baroncini A, Eschweiler J, Tingart M, Maffulli N. Pharmacological management of postmenopausal osteoporosis: a level I evidence based-expert opinion. Expert Rev Clin Pharmacol. 2021;14(1):105–19. https://doi.org/10.1080/17512433.2021.1851192.

    Article  CAS  PubMed  Google Scholar 

  17. Li CJ, Cheng P, Liang MK, Chen YS, Lu Q, Wang JY, et al. MicroRNA-188 regulates age-related switch between osteoblast and adipocyte differentiation. J Clin Invest. 2015;125(4):1509–22. https://doi.org/10.1172/JCI77716.

    Article  PubMed  PubMed Central  Google Scholar 

  18. Xiao YZ, Yang M, Xiao Y, Guo Q, Huang Y, Li CJ, et al. Reducing hypothalamic stem cell senescence protects against aging-associated physiological decline. Cell Metab. 2020;31(3):534-548.e5. https://doi.org/10.1016/j.cmet.2020.01.002.

    Article  CAS  PubMed  Google Scholar 

  19. Li XL, Xu F, Lin FH, Ai LZ, Zhao YJ, Bi XL, et al. A Naringin- and Icariin-contained herbal formula, Gushukang, ameliorated aged osteoporosis of aged mice with high calcium intake. Am J Chin Med. 2020;48(7):1671–91. https://doi.org/10.1142/S0192415X20500834.

    Article  CAS  PubMed  Google Scholar 

  20. Zhou L, Poon CC, Wong KY, Cao S, Dong X, Zhang Y, et al. Icariin ameliorates estrogen-deficiency induced bone loss by enhancing IGF-I signaling via its crosstalk with nongenomic ERα signaling. Phytomedicine. 2021;82: 153413. https://doi.org/10.1016/j.phymed.2020.153413.

    Article  CAS  PubMed  Google Scholar 

  21. Wang Q, Zhao Y, Sha N, Zhang Y, Li C, Zhang H, et al. The systemic bone protective effects of Gushukang granules in ovariectomized mice by inhibiting osteoclastogenesis and stimulating osteoblastogenesis. J Pharmacol Sci. 2018;136(3):155–64. https://doi.org/10.1016/j.jphs.2018.01.007.

    Article  CAS  PubMed  Google Scholar 

  22. Qiu Y, Yu R, Xiong T, Wu WJ. Study on the medication regularity of traditional Chinese medicine in treatment of primary osteoporosis. Chin J Osteoporosis. 2022;28(01):75–9. https://doi.org/10.3969/j.issn.1006-7108.2022.01.016.

    Article  Google Scholar 

  23. Jing YY, Xie YM, Jiang JJ, Zhi YJ. Meta-analysis of Duhuojishengtang in the treatment of postmenopausal osteoporosis. Chin J Osteoporosis. 2021;27(10):1431–7.

    Google Scholar 

  24. Zheng ZJ, Shu B, Zhao ST, Ni GD, Ma ZB, Wang YJ, et al. Effects of Gushukang granules on bone loss in ovariectomized mice and apoptosis of osteoclasts. China J Tradit Chin Med Pharm. 2020;35(07):3647–51.

    CAS  Google Scholar 

  25. Xia WB, Zhang ZL, Lin H, Yu W, Fu Q. Guidelines for the diagnosis and management of primary osteoporosis. Chin J Osteoporosis. 2019;25(03):281–309. https://doi.org/10.19538/j.nk2018020109.

    Article  Google Scholar 

  26. Cumpston M, Li T, Page MJ, Chandler J, Welch VA, Higgins JP, et al. Updated guidance for trusted systematic reviews: a new edition of the cochrane handbook for systematic reviews of interventions. Cochrane Database Syst Rev. 2019;10(10):142. https://doi.org/10.1002/14651858.ED000142.

    Article  Google Scholar 

  27. Cumpston M, Li T, Page MJ, Chandler J, Welch VA, Higgins JP, et al. Updated guidance for trusted systematic reviews: a new edition of the Cochrane handbook for systematic reviews of interventions. Cochrane Database Syst Rev. 2019;10(10):ED000142. https://doi.org/10.1002/14651858.ED000142.

    Article  PubMed  Google Scholar 

  28. Chen CB. Clinical effect of gushukang capsule combined with calcitriol and alendronate sodium in treatment of osteoporosis. Drug Eval. 2017;14(7):41–3. https://doi.org/10.3969/j.issn.1672-2809.2017.07.011.

    Article  Google Scholar 

  29. Cong F, Liu J, Fan JZ, Song T, Zhang B, Fu H. Clinical study on Gushukang Capsules combined with calcitriol and alendronate sodium in treatment of osteoporosis. Drugs Clin. 2016;31(09):1395–8. https://doi.org/10.7501/j.issn.1674-5515.2016.09.018.

    Article  Google Scholar 

  30. Li CY. Clinical observation on the treatment of postmenopausal osteoporosis with Chinese medicine Gushukang. Biped Health. 2017;26(24):164–6. https://doi.org/10.19589/j.cnki.issn1004-6569.2017.24.164.

    Article  Google Scholar 

  31. Lin Z, Lv CX. Clinical study on gushukang capsules combined with alfacalcidol for senile osteoporosis. New J Tradit Chin Med. 2021;53(15):96–9. https://doi.org/10.13457/j.cnki.jncm.2021.15.024.

    Article  CAS  Google Scholar 

  32. Shen L. Analysis of the effect of calcium carbonate D3 tablets combined with osteoporosis capsules in the treatment of osteoporosis. Henan Med Res. 2017;26(02):307–8. https://doi.org/10.3969/j.issn.1004-437X.2017.02.075.

    Article  Google Scholar 

  33. Shi F, Li X, Zhang R. Clinical effects of Gushukang Capsules combined with salmon calcitonin and estradiol valerate on patients with postmenopausal osteoporosis. Chin Tradit Pat Med. 2020;42(12):3188–92. https://doi.org/10.3969/j.issn.1001-1528.2020.12.014.

    Article  Google Scholar 

  34. Zhang TJ. Observational study on the efficacy of Gushukang in the treatment of primary osteoporosis. Electron J Clin Med Lit. 2020;7(82):94–5. https://doi.org/10.3969/j.issn.2095-8242.2020.82.94.02.

    Article  Google Scholar 

  35. Zhang Y. The efficacy of combining basic anti-osteoporosis drugs with osteoporosis capsules in the treatment of postmenopausal osteoporosis [Master’s Thesis]. Shaanxi University of Chinese Medicine, Xianyang; 2020.

  36. Zhou C, Fang HJ, Gu N, Yu X, Wu YQ. Synergistic and attenuation effects of gushukang granules on alendronate in treatment of osteoporosis. Eval Anal Drug Use Hosp China. 2019;19(06):679–82. https://doi.org/10.14009/j.issn.1672-2124.2019.06.011.

    Article  Google Scholar 

  37. Bai J, Bai MH, Liu ML, Zheng M, Zhang QH. Clinical observation of GuShuKang granule in treating postmenopausal osteoporosis. West J Tradit Chin Med. 2012;25(1):22–4. https://doi.org/10.3969/j.issn.1004-6852.2012.01.009.

    Article  Google Scholar 

  38. Chen ZX, Xu XJ, Huang G, Hu JM. Clinical study of the combined therapy with gushukang and calcium for the treatment of postmenopausal osteoporosis. Chin J Bone Jt. 2004;3(01):18–20.

    Google Scholar 

  39. Cheng J, Wang Y, Ji JH, Song XL, Huang YL. Effect of Gushukang capsule on the treatment of Shenyangxu osteoporosis and effect on bone metabolism. Shaanxi J Tradit Chin Med. 2019;40(09):1232–4. https://doi.org/10.3969/j.issn.1000-7369.2019.09.023.

    Article  Google Scholar 

  40. Feng WJ, Li QF, Wang CM, Chen JK, Zhou JL, He JL. Observation on the effect of using Chinese and WESTERN combined treatment in Senile osteoporosis. Guangming J Chin Med. 2013;28(07):1481–3. https://doi.org/10.3969/j.issn.1003-8914.2013.07.105.

    Article  Google Scholar 

  41. Guo N, Gong M, Yu DP. Postmenopausal osteoporosis bone thin Kang treatment the clinical effect of study. China Foreign Med Treat. 2015;15:156–7. https://doi.org/10.16662/j.cnki.1674-0742.2015.15.006.

    Article  Google Scholar 

  42. Li QF, Hou ZQ, Zhao JP, Wang HX, Huang ZF. Combination of Chinese and Western medicine in the treatment of primary osteoporosis. Guangming J Chin Med. 2012;27(06):1226–7. https://doi.org/10.3969/j.issn.1003-8914.2012.06.095.

    Article  Google Scholar 

  43. Li JX, Zhao M, Cao Y, Gu Q. The efficacy of kidney tonics in the treatment of senile osteoporosis and its pain. Beijing J Tradit Chin Med. 2010;29(06):433–5. https://doi.org/10.16025/j.1674-1307.2010.06.011.

    Article  Google Scholar 

  44. Li Y, Ye YX, Xu WB. Clinical analysis on standardized treatment of primary osteoporosis with integrated traditional Chinese and western medicine. Chin Med Mod Dist Educ China. 2021;19(19):55–7. https://doi.org/10.3969/j.issn.1672-2779.2021.19.022.

    Article  Google Scholar 

  45. Lu ZD, Wang YS. The efficacy of osteoporosis in the treatment of moderate to severe primary osteoporosis. Chin J Tissue Eng Res. 2004;8(18):3652.

    Google Scholar 

  46. Ren XJ. Clinical study of 35 cases of osteoporosis treated with Gushukang granules combined with alendronate. Yunnan J Tradit Chin Med Mater Medica. 2012;33(01):26–8. https://doi.org/10.16254/j.cnki.53-1120/r.2012.01.046.

    Article  Google Scholar 

  47. Shi XY, Feng L, Li HJ, Lu C, Zhang X. Effects of different herbal preparations on blood calcium, blood alkaline phosphatase and bone mineral density in patients with osteoporosis. Guangming J Chin Med. 2020;35(21):3346–8. https://doi.org/10.3969/j.issn.1003-8914.2020.21.012.

    Article  Google Scholar 

  48. Wang ZD. Summary of clinical trials on osteoporosis treatment with Gushukang Capsules. Spec Health. 2019;36:141–2.

    Google Scholar 

  49. Wu XA. Observation of the clinical efficacy of Chinese herbal medicine gushukang in the treatment of postmenopausal osteoporosis. Health Req. 2013;12(9):280–1. https://doi.org/10.3969/j.issn.1672-3783(2013)09-0280-02.

    Article  Google Scholar 

  50. Yuan Z, Xiong GH, Sheng X, Zhang CJ, Fu LH. Clinical study on the treatment of postmenopausal osteoporosis with osteoporotic capsules combined with zoledronic acid injection. Electron J Clin Méd Lit. 2020;7(58):157–8. https://doi.org/10.3969/j.issn.2095-8242.2020.58.157.02.

    Article  Google Scholar 

  51. Zhong Y. Clinical observation on the combination of Chinese and Western medicine in the treatment of primary osteoporosis. World Latest Med Inf. 2015;15(60):171. https://doi.org/10.3969/j.issn.1671-3141.2015.60.156.

    Article  Google Scholar 

  52. Lin R, Xie B, Xie L, Ge J, Li S. Integrated proteomics and metabolomics analysis of lumbar in a rat model of osteoporosis treated with Gushukang capsules. BMC Complement Med Ther. 2022;22(1):333. https://doi.org/10.1186/s12906-022-03807-7.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  53. Li W, Zhou X, Jiang T, He H, Wen T. Positive effect of gushukang on type-H vessel and bone formation. Front Cell Dev Biol. 2020;8:265. https://doi.org/10.3389/fcell.2020.00265.

    Article  PubMed  PubMed Central  Google Scholar 

  54. Chai S, Wan L, Wang JL, Huang JC, Huang HX. Gushukang inhibits osteocyte apoptosis and enhances BMP-2/Smads signaling pathway in ovariectomized rats. Phytomedicine. 2019;64: 153063. https://doi.org/10.1016/j.phymed.2019.153063.

    Article  CAS  PubMed  Google Scholar 

  55. Huang L, Li Y, Qiu JL, Wang JL, Yang Z, Tian Q, et al. Randomized controlled clinical trials for the effect of gushukang in treating primary osteoporosis: a meta-analysis. J Liaoning Univ Tradit Chin Med. 2016;18(04):85–8. https://doi.org/10.13194/j.issn.1673-842x.2016.04.026.

    Article  Google Scholar 

Download references

Funding

This review was supported by the National Natural Science Foundation project: Mechanisms of BMSC osteogenesis induced by psoralen nanospheres combined with 3D oyster scaffolds for repairing bone defects based on the theory of ‘Kidney Dominating Bone’ (No. 81973889); Shaanxi Provincial Education Department Service Local Scientific Research Program: Development of Tai Bai Tong Luo Gel Cream (No. 19JC013); Shaanxi Provincial Key Scientific Research Project on Traditional Chinese Medicine Inheritance and Innovation and Qin Medicine Development: Evidence-based Optimization of Chinese and Western Medicine Diagnostic and Treatment Protocols for Primary Osteoporosis Based on Prospective Cohorts (No. 2021-01-22-009); and Shaanxi Provincial Department of Science and Technology General Project in the Field of Social Development: Research on the Development and Transformation of Tai Bai Tong Luo Gel Cream Based on the Academic Experiences of Famous Elderly Chinese Medicine Practitioners. (No. 2023-YBSF-210).

Author information

Authors and Affiliations

Authors

Contributions

F-Y and T-PL conceived this review topic. M-LY, Y-FZ, and T-PL drafted the protocol of the review. C-R and S-CZ searched the database, removed duplicates and screened the titles, abstracts and full texts of the included articles. T-PL and Y-FZ assessed the risk of bias and extracted data. Outcomes were extracted and checked by C-R and S-CZ and discussed with F-Y. Data analysis was conducted by T-PL. Finally, T-PL wrote the manuscript and had the submitted version checked by all authors.

Corresponding author

Correspondence to Feng Yang.

Ethics declarations

Competing interests

The authors declare no competing interests.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary Information

Additional file 1

: Protocol of the meta-analysis.

Appendix: Search strategy for PubMed

Appendix: Search strategy for PubMed

((gushukang[Title/Abstract]) OR ("gushukang" [Supplementary Concept])) AND (((("Osteoporosis"[Mesh]) OR (((((((((((((((((((((Osteoporoses[Title/Abstract]) OR (Osteoporosis, PostTraumatic[Title/Abstract])) OR (Osteoporosis, Post Traumatic[Title/Abstract])) OR (Post-Traumatic Osteoporoses[Title/Abstract])) OR (Post-Traumatic Osteoporosis[Title/Abstract])) OR (Osteoporosis, Senile[Title/Abstract])) OR (Osteoporoses, Senile[Title/Abstract])) OR (Senile Osteoporoses[Title/Abstract])) OR (Osteoporosis, Involutional[Title/Abstract])) OR (Senile Osteoporosis[Title/Abstract])) OR (Osteoporosis, Age-Related[Title/Abstract])) OR (Osteoporosis, Age Related[Title/Abstract])) OR (Bone Loss, Age-Related[Title/Abstract])) OR (Age-Related Bone Loss[Title/Abstract])) OR (Age-Related Bone Losses[Title/Abstract])) OR (Bone Loss, Age Related[Title/Abstract])) OR (Bone Losses, Age-Related[Title/Abstract])) OR (Age-Related Osteoporosis[Title/Abstract])) OR (Age Related Osteoporosis[Title/Abstract])) OR (Age-Related Osteoporoses[Title/Abstract])) OR (Osteoporoses, Age-Related[Title/Abstract]))) OR ("Osteoporosis, Postmenopausal"[Mesh])) OR ((((((((((((((((Perimenopausal Bone Loss[Title/Abstract]) OR (Bone Loss, Postmenopausal[Title/Abstract])) OR (Bone Losses, Postmenopausal[Title/Abstract])) OR (Postmenopausal Bone Losses[Title/Abstract])) OR (Osteoporosis, PostMenopausal[Title/Abstract])) OR (Osteoporoses, PostMenopausal[Title/Abstract])) OR (Osteoporosis, Post Menopausal[Title/Abstract])) OR (Post-Menopausal Osteoporoses[Title/Abstract])) OR (Post-Menopausal Osteoporosis[Title/Abstract])) OR (Postmenopausal Osteoporosis[Title/Abstract])) OR (Osteoporoses, Postmenopausal[Title/Abstract])) OR (Postmenopausal Osteoporoses[Title/Abstract])) OR (Bone Loss, Perimenopausal[Title/Abstract])) OR (Bone Losses, Perimenopausal[Title/Abstract])) OR (Perimenopausal Bone Losses[Title/Abstract])) OR (Postmenopausal Bone Loss[Title/Abstract]))).

Rights and permissions

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Liu, T., Yao, M., Zhao, Y. et al. Chinese medicine Gushukang capsule for treating primary osteoporosis: a systematic review and meta-analysis. J Orthop Surg Res 18, 845 (2023). https://doi.org/10.1186/s13018-023-04264-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1186/s13018-023-04264-9

Keywords