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Li C, Liu Y, Deng M, Li J, Li S, Li X, Zuo Y, Shen C, Wang Y. Comparison of the therapeutic effects of mesenchymal stem cells derived from human dental pulp (DP), adipose tissue (AD), placental amniotic membrane (PM), and umbilical cord (UC) on postmenopausal osteoporosis. Front Pharmacol 2024; 15:1349199. [PMID: 38601464 PMCID: PMC11004311 DOI: 10.3389/fphar.2024.1349199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 03/18/2024] [Indexed: 04/12/2024] Open
Abstract
Background: Osteoporosis is a systemic bone disease characterized by bone loss and microstructural degeneration. Recent preclinical and clinical trials have further demonstrated that the transplantation of mesenchymal stem cells (MSCs) derived from human adipose tissue (AD), dental pulp (DP), placental amniotic membrane (AM), and umbilical cord (UC) tissues can serve as an effective form of cell therapy for osteoporosis. However, MSC-mediated osteoimmunology and the ability of these cells to regulate osteoclast-osteoblast differentiation varies markedly among different types of MSCs. Methods: In this study, we investigated whether transplanted allogeneic MSCs derived from AD, DP, AM, and UC tissues were able to prevent osteoporosis in an ovariectomy (OVX)-induced mouse model of osteoporosis. The homing and immunomodulatory ability of these cells as well as their effects on osteoblastogenesis and the maintenance of bone formation were compared for four types of MSCs to determine the ideal source of MSCs for the cell therapy-based treatment of OVX-induced osteoporosis. The bone formation and bone resorption ability of these four types of MSCs were analyzed using micro-computed tomography analyses and histological staining. In addition, cytokine array-based analyses of serological markers and bioluminescence imaging assays were employed to evaluate cell survival and homing efficiency. Immune regulation was determined by flow cytometer assay to reflect the mechanisms of osteoporosis treatment. Conclusion: These analyses demonstrated that MSCs isolated from different tissues have the capacity to treat osteoporosis when transplanted in vivo. Importantly, DP-MSCs infusion was able to maintain trabecular bone mass more efficiently with corresponding improvements in trabecular bone volume, mineral density, number, and separation. Among the tested MSC types, DP-MSCs were also found to exhibit greater immunoregulatory capabilities, regulating the Th17/Treg and M1/M2 ratios. These data thus suggest that DP-MSCs may represent an effective tool for the treatment of osteoporosis.
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Affiliation(s)
- Chuncai Li
- Stem Cells Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- TCM Hospital of Sichuan Province, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yincong Liu
- Stem Cells Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mingxing Deng
- Stem Cells Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jun Li
- Sichuan Provincial Cells Tissue Bank, Chengdu, China
| | - Shengqi Li
- Sichuan Provincial Cells Tissue Bank, Chengdu, China
| | - Xiaoyu Li
- Stem Cells Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuling Zuo
- Stem Cells Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- TCM Hospital of Sichuan Province, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chongyang Shen
- Stem Cells Research Center, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yichao Wang
- Department of Thyroid Surgery, West China Hospital, Sichuan University, Chengdu, China
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2
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Pan M, Zhou J, Pan X, Wang J, Qi Q, Wang L. Drugs for the treatment of postmenopausal symptoms: Hormonal and non-hormonal therapy. Life Sci 2022; 312:121255. [PMID: 36470539 DOI: 10.1016/j.lfs.2022.121255] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 11/24/2022] [Accepted: 11/26/2022] [Indexed: 12/11/2022]
Abstract
Postmenopausal symptoms are systemic symptoms associated with estrogen deficiency after menopause. At present, treatments for postmenopausal symptoms include hormonal therapy (HT) and non-HT. However, the optimal regimen for balancing the benefits and risks remains unclear. This article reviewed the characteristics, regimens, and side effects of drugs used in hormonal and non-HT. However, HT is still the most effective treatment with safety in early initiation since menopause onset. Nevertheless, it is essential to evaluate the risks of related chronic diseases and customize individualized treatments. Possible estetrol preparations and more types of Tissue Selective Estrogen Complex formulations are potential directions of drug development in the future of HT. Regarding non-HT, fezolinetant, currently in phase III clinical trials, is poised to become a first-in-class therapy for vasomotor symptoms. Ospemifene, dehydroepiandrosterone (DHEA), and vaginal lasers can also be used for moderate-to-severe genitourinary syndrome of menopause. Recent data suggest a superior efficacy and safety of vaginal lasers, but more validated evidence of long-term tolerability is needed to respond to the United States Food and Drug Administration warning. Herbal medication commonly used in Asia is effective in alleviating menopausal symptoms; however, its adverse effects still require more detailed reports and standardized observation methods. This review contributes to a better understanding of drugs for the treatment of postmenopausal symptoms and provides useful information for clinical drug selection.
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Affiliation(s)
- Meijun Pan
- The Second Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Guangzhou, China; Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; The Academy of Integrative Medicine of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Jing Zhou
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; The Academy of Integrative Medicine of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Xinyao Pan
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; The Academy of Integrative Medicine of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Jing Wang
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; The Academy of Integrative Medicine of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Qing Qi
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; The Academy of Integrative Medicine of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Ling Wang
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China; The Academy of Integrative Medicine of Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China.
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Zuogui Pill Ameliorates Glucocorticoid-Induced Osteoporosis through ZNF702P-Based ceRNA Network: Bioinformatics Analysis and Experimental Validation. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022. [DOI: 10.1155/2022/8020182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Glucocorticoid-induced osteoporosis (GIOP) is a musculoskeletal disease with increased fracture risk caused by long-term application of glucocorticoid, but there exist few effective interventions. Zuogui Pill (ZGP) has achieved clinical improvement for GIOP as an ancient classical formula, but its molecular mechanisms remain unclear due to scanty relevant studies. This study aimed to excavate the effective compounds and underlying mechanism of ZGP in treating GIOP and construct relative ceRNA network by using integrated analysis of bioinformatics analysis and experimental validation. Results show that ZNF702P is significantly upregulated in GIOP than normal cases based on gene chip sequencing analysis. Totally, 102 ingredients and 535 targets of ZGP as well as 480 GIOP-related targets were selected, including 122 common targets and 8 intersection targets with the predicted mRNAs. The ceRNA network contains one lncRNA (ZNF702P), 6 miRNAs, and 8 mRNAs. Four hub targets including JUN, CCND1, MAPK1, and MAPK14 were identified in the PPI network. Six ceRNA interaction axes including ZNF702P-hsa-miR-429-JUN, ZNF702P-hsa-miR-17-5p/hsa-miR-20b-5p-CCND1, ZNF702P-hsa-miR-17-5p/hsa-miR-20b-5p-MAPK1, and ZNF702P-hsa-miR-24-3p-MAPK14 were obtained. By means of molecular docking, we found that all the hub targets could be effectively combined with related ingredients. GO enrichment analysis showed 649 biological processes, involving response to estrogen, response to steroid hormone, inflammatory response, macrophage activation, and osteoclast differentiation, and KEGG analysis revealed 102 entries with 36 relative signaling pathways, which mainly contained IL-17 signaling pathway, T cell receptor signaling pathway, FoxO signaling pathway, the PD-L1 expression and PD-1 checkpoint pathway, MAPK signaling pathway, TNF signaling pathway, Estrogen signaling pathway, and Wnt signaling pathway. Our experiments confirmed that ZNF702P exhibited gradually increasing expression levels during osteoclast differentiation of human peripheral blood monocytes (HPBMs) induced by RANKL, while ZGP could inhibit osteoclast differentiation of HPBMs induced by RANKL in a concentration-dependent manner. Therefore, by regulating inflammatory response, osteoclast differentiation, and hormone metabolism, ZGP may treat GIOP by regulating hub target genes, such as JUN, CCND1, MAPK1, and MAPK14, and acting on numerous key pathways, which involve the ZNF702P-based ceRNA network.
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4
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Structural characterization of a mannoglucan polysaccharide from Dendrobium huoshanense and evaluation of its osteogenesis promotion activities. Int J Biol Macromol 2022; 211:441-449. [PMID: 35577191 DOI: 10.1016/j.ijbiomac.2022.05.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 05/02/2022] [Accepted: 05/05/2022] [Indexed: 12/31/2022]
Abstract
Dendrobium huoshanense, a valuable traditional Chinese herb, is widely used to prolong life in China. Our study aims to characterize the structure and osteogenesis-promotion effects of a heteropolysaccharide component isolated from Dendrobium huoshanense (DHPW1). The structure of DHPW1 was characterized using gas chromatography-mass spectrometry and nuclear magnetic resonance, while its osteogenic activity was evaluated using MG-63 cells and zebrafish skulls. The results showed that the molecular weight of DHPW1 was 230 kDa and it was mainly composed of mannose and glucose. In addition, the DHPW1 backbone consisted of (1 → 4)-linked-β-D-Mannopyranosyl and (1 → 4)-linked-β-d-Glucopyranosyl. Furthermore, DHPW1 significantly increased ALP activity and mineralized nodule formation in MG-63 cells. DHPW1 in zebrafish skull models significantly enhanced the relative fluorescence intensity of bone mass and increased the degree of bone mineralization. These results suggested that the DHPW1 component in D. huoshanense has potential to promote osteogenesis.
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Pan M, Pan X, Zhou J, Wang J, Qi Q, Wang L. Update on hormone therapy for the management of postmenopausal women. Biosci Trends 2022; 16:46-57. [PMID: 35013031 DOI: 10.5582/bst.2021.01418] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Hormone therapy (HT) has been used in postmenopausal women for decades in clinical practice. With further analysis and newer studies, the benefits and risks of HT have been repeatedly verified and discussed. HT is recommended for the treatment of vasomotor symptoms (VMS), genitourinary syndrome of menopause (GSM) and the prevention of osteoporosis. However, the precise association between HT and the risks of cardiovascular diseases, venous thromboembolism, neurodegenerative diseases, breast cancer, and endometrial cancer remains controversial. Therefore, determining how to take advantage of and control the risks of HT by adjusting the initiation time, regimen, and duration is crucial. Recent studies have indicated that HT is not related to the risk of all-cause, cardiovascular, or breast cancer mortality although it might increase the incidence of some chronic diseases. For symptomatic postmenopausal women under the age of 60 without contraindications, early initiation of HT is safe and probably has a mortality benefit over the long term. Initiating HT close to menopause at the lowest effective dose is more likely to have maximal benefits and the lowest risks. Transdermal and vaginal HT may have a lower risk, but recent evidence suggests additional clinical benefits of oral HT formulations in relieving VMS and preventing osteoporosis. The pooled cohort risk equation for atherosclerotic cardiovascular disease (ASCVD) and the free app named Menopro can be used to perform individual risk assessments. In addition, Chinese herbal medicines have benefits in alleviating hot flashes, depression, and menopausal symptoms, although further data are needed to strongly support their efficacy. Acupuncture and electroacupuncture have definite efficacy in the treatment of postmenopausal symptoms with few adverse effects, so they are a reasonable option as an alternative therapy for high-risk women. This review discusses the history of, guidelines on, and strategies for HT in order to make suggestions based on the most up-to-date evidence for the management of postmenopausal women.
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Affiliation(s)
- Meijun Pan
- The Second Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Guangzhou, China.,Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,The Academy of Integrative Medicine of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Xinyao Pan
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,The Academy of Integrative Medicine of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Jing Zhou
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,The Academy of Integrative Medicine of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Jing Wang
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,The Academy of Integrative Medicine of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Qing Qi
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,The Academy of Integrative Medicine of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Ling Wang
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.,The Academy of Integrative Medicine of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
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Shen G, Shang Q, Zhang Z, Zhao W, Chen H, Mijiti I, Chen G, Yu X, Yu F, Zhang P, He J, Zhang X, Tang J, Cui J, Liang D, Zeng L, Ren H, Jiang X. Zuo-Gui-Wan Aqueous Extract Ameliorates Glucocorticoid-Induced Spinal Osteoporosis of Rats by Regulating let-7f and Autophagy. Front Endocrinol (Lausanne) 2022; 13:878963. [PMID: 35592785 PMCID: PMC9111739 DOI: 10.3389/fendo.2022.878963] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 03/11/2022] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE This study proposes to explore the protective effect of Zuo-Gui-Wan (ZGW) aqueous extract on spinal glucocorticoid-induced osteoporosis (GIOP) in vivo and in vitro, and the underlying mechanisms of ZGW in GIOP and osteogenic differentiation of bone marrow-derived mesenchymal stem cells (BMSCs) were conducted. METHODS In vivo, SD rats were randomly divided into three groups: control group (CON), dexamethasone (DEXM) group, and ZGW group, which were given vehicle, DEXM injection, and ZGW intragastric administration at the same time. Vertebral bone microarchitecture, biomechanics, histomorphology, serum AKP activity, and the autophagosome of osteoblasts were examined. The mRNA expressions of let-7f, autophagy-associated genes (mTORC1, Beclin-1, ATG12, ATG5, and LC3), Runx2, and CTSK were examined. In vitro, the let-7f overexpression/silencing vector was constructed and transfected to evaluate the osteogenic differentiation of BMSCs. Western blot was employed to detect the expression of autophagy-associated proteins (ULK2, ATG5, ATG12, Beclin-1, LC3). RESULTS In vivo, ZGW promoted the bone quantity, quality, and strength; alleviated histological damage; increased the serum AKP activity; and reduced the autophagosome number in osteoblasts. Moreover, ZGW increased the let-7f, mTORC1, and Runx2 mRNA expressions and reduced the Beclin-1, ATG12, ATG5, LC3, and CTSK mRNA expressions. In vitro, bioinformatics prediction and dual luciferase reporter gene assay verified that let-7f targeted the binding to ULK2 and negatively regulated the ULK2 expression. Furthermore, by let-7f overexpression/silencing, ZGW may promote osteoblast differentiation of BMSCs by regulating let-7f and autophagy as evidenced by Western blot (ULK2, ATG5, ATG12, Beclin-1, LC3). CONCLUSIONS ZGW may ameliorate GC-induced spinal osteoporosis by promoting osteoblast differentiation of BMSCs by activation of let-7f and suppression of autophagy.
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Affiliation(s)
- Gengyang Shen
- Department of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Spinal Surgery, Nanshan Hospital, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Shenzhen Nanshan Hospital of Chinese Medicine, Guangzhou, China
| | - Qi Shang
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhida Zhang
- Department of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wenhua Zhao
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Honglin Chen
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ibrayinjan Mijiti
- Department of Spinal Surgery, The First People’s Hospital of Kashgar, Kashgar, China
| | - Guifeng Chen
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiang Yu
- Department of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Fuyong Yu
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Peng Zhang
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiahui He
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xuelai Zhang
- Department of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jingjing Tang
- Department of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jianchao Cui
- Department of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - De Liang
- Department of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lingfeng Zeng
- Department of Orthopedics, The 2nd Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- *Correspondence: Xiaobing Jiang, ; Hui Ren, ; Lingfeng Zeng,
| | - Hui Ren
- Department of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
- *Correspondence: Xiaobing Jiang, ; Hui Ren, ; Lingfeng Zeng,
| | - Xiaobing Jiang
- Department of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
- *Correspondence: Xiaobing Jiang, ; Hui Ren, ; Lingfeng Zeng,
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Yong EL, Cheong WF, Huang Z, Thu WPP, Cazenave-Gassiot A, Seng KY, Logan S. Randomized, double-blind, placebo-controlled trial to examine the safety, pharmacokinetics and effects of Epimedium prenylflavonoids, on bone specific alkaline phosphatase and the osteoclast adaptor protein TRAF6 in post-menopausal women. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 91:153680. [PMID: 34352588 DOI: 10.1016/j.phymed.2021.153680] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/04/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Fragility fractures due to menopausal osteoporosis are a major cause of morbidity and mortality. Osteoporotic medications have substantial side effects that limit long term use. HYPOTHESES Ingestion of a purified extract of Epimedium spp. (EP) is safe, can increase serum levels of prenylflavonoid metabolites, exert positive changes in bone specific alkaline phosphatase (BSAP), suppress of tumor necrosis factor receptor associated factor 6 (TRAF6) protein in osteoclast-precursor monocytes in peripheral blood and therefore have the potential to reduce post-menopausal bone loss. STUDY DESIGN & METHODS Healthy postmenopausal women were randomized in a double-blind fashion to consume either EP prenylflavonoid extract (740 mg daily) or placebo daily for 6 weeks. The main outcome measures were safety and pharmacokinetics of EP flavonoids. Fasting blood was collected at 3- and 6-weeks, and two weeks after stopping medication for safety evaluations and measurement of BSAP. Peripheral blood monocytes were harvested for measurement of TRAF6 levels. Serum levels of the EP metabolites icariin, icariside I & II, icaritin and desmethylicaritin were measured using tandem mass spectrometry, and non-compartmental pharmacokinetic analyses performed using WinNonlin software. RESULTS Between October 2018 and Jun 2020, 58 postmenopausal women, aged 57.9 ± 8.9 years, were randomized and completed the study. Consumption of EP prenylflavonoids was not associated with any significant adverse symptoms, with no changes in hepatic, hematological, and renal parameters observed. The main metabolites detected in sera after ingestion of EP prenylflavonoid capsules were desmethylicaritin, icaritin and icariside II. Icariin and icariside I were below detection levels. Ingestion of EP prenylflavonoids induced a median Cmax and AUC0→∞ for desmethylicaritin of 60.9 nM, and 157.9 nM ×day, respectively; and were associated with higher levels of BSAP (p < 0.05) and a trend (p = 0.068) towards lower levels of TRAF6 in peripheral blood monocytes eight weeks after commencing prenylflavonoid ingestion. Prenylflavonoid metabolites were not detected in the sera of placebo participants. CONCLUSIONS Despite the widespread consumption of EP extracts, the safety, mechanisms of action of their bioactive compounds, and therapeutic indications in humans are unknown. Daily consumption of EP prenylflavonoids for six weeks was safe. The predominant metabolite in sera was desmethylicaritin. Rise in prenylflavonoid metabolites was associated with higher levels of the bone anabolic marker BSAP, suggesting potential therapeutic value for post-menopausal osteoporosis.
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Affiliation(s)
- Eu-Leong Yong
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, 119228 Singapore.
| | - Wei Fun Cheong
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, 119228 Singapore
| | - Zhongwei Huang
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, 119228 Singapore; Institute of Molecular and Cell Biology, Agency of Science, Technology and Research, 138673 Singapore
| | - Win Pa Pa Thu
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, 119228 Singapore
| | - Amaury Cazenave-Gassiot
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, 117456 Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 117596 Singapore
| | - Kok Yong Seng
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600 Singapore
| | - Susan Logan
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, 119228 Singapore
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8
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Diao X, Wang L, Zhou Y, Bi Y, Zhou K, Song L. The mechanism of Epimedin B in treating osteoporosis as revealed by RNA sequencing-based analysis. Basic Clin Pharmacol Toxicol 2021; 129:450-461. [PMID: 34491615 DOI: 10.1111/bcpt.13657] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 08/25/2021] [Accepted: 08/25/2021] [Indexed: 12/13/2022]
Abstract
With the ageing of populations, the management of osteoporosis is a priority of society in general. Epimedin B, a major ingredient of Herba Epimedii, which has the advantages of high content and hypotoxicity has been proved to be effective in preventing osteoporosis in vitro. However, the efficacy and mechanism of Epimedin B on osteoporosis in vivo have not been well elucidated yet. This study aimed to investigate the effects and the potential mechanisms of 8-week repeated oral administration of Epimedin B (10 and 20 mg/kg/day) on a mouse osteoporosis model. Effects of Epimedin B were evaluated by examinations of serum bone turnover markers, bone mineral density, bone microstructure parameters and histopathological section. Epimedin B significantly rose N-terminal propeptide of type I procollagen (P1NP) and dropped C-telopeptide of type I collagen (CTX1). Connectivity density (Conn.D) increased significantly while structure model index (DA) decreased significantly after treated by Epimedin B. Meanwhile, Epimedin B administration significantly increased the number of trabecular bones while significantly decreased the gap between them. Overall, Epimedin B showed beneficial effects on osteoporosis. Furthermore, RNA sequencing-based analysis revealed 5 significantly down-regulated transcripts and 107 significantly up-regulated transcripts between the Epimedin B administration group and the model group. These transcripts were mapped to 15 pathways by KEGG enrichment analysis, of which PI3K-Akt signalling pathway, MAPK signalling pathway and PPAR signalling pathway were most connected to osteoporosis. To conclude, Epimedin B is effective in treating osteoporosis in mice via regulating PI3K-Akt, MAPK and PPAR signalling pathway.
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Affiliation(s)
- Xinyue Diao
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Liwen Wang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yating Zhou
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yanan Bi
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Kun Zhou
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lei Song
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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9
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Tian J, Wu S, Dong L, Tang H. Pharmacological and non-pharmacological interventions for osteoporosis: A protocol for an overview with an evidence map and a network meta-analysis of trials. Medicine (Baltimore) 2021; 100:e26429. [PMID: 34128909 PMCID: PMC8213325 DOI: 10.1097/md.0000000000026429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 06/03/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Osteoporosis is a common bone disease that has a significant social and economic effect. Many meta-analyses of pharmacological and non-pharmacological treatments for osteoporosis have been reported, but the findings may be contradictory, and both the reporting and methodological quality remain unknown. As a result, an overview that includes a network meta-analysis was proposed to address these issues. METHODS The Cochrane library, PubMed, Embase, CBM, and CNKI databases will be systematically searched for meta-analyses of osteoporosis interventions from inception to May 2021. In order to evaluate the reporting and methodological quality of each included meta-analysis, Preferred Reporting Items for Systematic Review and Meta-analysis 2020 (PRISMA-2020), and A MeaSurement Tool to Assess systematic Reviews 2 (AMSTAR-2) will be used. For the assessment of the relative efficacy and safety of treatments reported in the randomized controlled trials included in the meta-analyses identified by the overview, a Bayesian network meta-analysis will be carried out. The odds ratio and standard mean difference with their 95% credible intervals will be used to present the binary and continuous outcomes, respectively, and the Grading of Recommendations Assessment, Development and Evaluation method will be used to determine the certainty of the evidence through Confidence In Network Meta-Analysis. Data analysis will be performed using WinBUGS, R, and Stata, with a 2-sided P < .05 considered as statistically significant. RESULTS The findings of this overview, which includes a network meta-analysis, will be submitted to a peer-reviewed journal for publication. CONCLUSION An overview with network meta-analysis will provide evidence on the efficacy and safety of pharmacological and non-pharmacological interventions for osteoporosis, while also identifying the flaws in previously published meta-analyses. All of these results may be used to improve clinical decision-making and future studies. INPLASY REGISTRATION NUMBER INPLASY202150022.
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Affiliation(s)
- Jidong Tian
- Gansu Provincial Hospital of Traditional Chinese Medicine
| | - Shuo Wu
- The First People's Hospital of Jiayuguan City, Jiayuguan, Gansu
| | - Lin Dong
- Gansu Provincial Hospital of Traditional Chinese Medicine
| | - Hao Tang
- Clinical College of Chinese Medicine, Gansu University of Chinese Medicine, Lanzhou, China
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