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Çelik Eroğlu B, Karaçoban L, Idılman IS, Korkusuz F, Yıldız BO. Evaluation of muscle and bone composition and function in aging women with polycystic ovary syndrome. Maturitas 2024; 185:107982. [PMID: 38579578 DOI: 10.1016/j.maturitas.2024.107982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 02/24/2024] [Accepted: 03/24/2024] [Indexed: 04/07/2024]
Abstract
OBJECTIVE The potential effects of polycystic ovary syndrome (PCOS) on the musculoskeletal system are not well established. We examined the musculoskeletal system in women with PCOS in their late reproductive years. STUDY-DESIGN This cross-sectional study included 34 women with PCOS and 32 control women matched for age and body mass index (BMI). MAIN OUTCOME MEASURES Dual-energy x-ray absorptiometry (DXA) was used for body composition analysis and cross-sectional areas and fat fraction of muscles were assessed by magnetic resonance imaging-proton density fat fraction (MRI-PDFF) of the abdomen and thigh. Muscle strength was measured using an isokinetic dynamometer. RESULTS The mean age of the PCOS group was 43 ± 3.7 years and of the control group 42.2 ± 3.5 years. Testosterone, free androgen index, and fasting insulin were higher in PCOS patients than controls (p < 0.001, p = 0.001 and p = 0.032, respectively). Patients and controls had similar values for total abdominal muscle area (TAMA), paraspinal muscle area, thigh muscle area, vertebral MRI-PDFF, thigh and paraspinal muscle MRI-PDFF. There was no difference in DXA-derived muscle and bone composition between the two groups. Body composition parameters measured by MRI and DXA were correlated with BMI and fasting insulin levels, but not with androgen levels in both groups. Subgroup analyses showed that PCOS women with obesity had higher TAMA than controls with obesity (p = 0.012). Apart than higher 60°/sec knee extensor average power in nonobese PCOS (p = 0.049), no difference in muscle mechanical function was detected between PCOS patients and controls. CONCLUSION Musculoskeletal composition and function are similar in PCOS patients and healthy women in late reproductive years. Body composition is linked with obesity and insulin resistance rather than hyperandrogenemia.
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Affiliation(s)
- Burcu Çelik Eroğlu
- Department of Internal Medicine, Hacettepe University School of Medicine, Ankara, Turkey
| | - Levend Karaçoban
- Department of Sports Medicine, Hacettepe University School of Medicine, Ankara, Turkey
| | - Ilkay S Idılman
- Department of Radiology, Hacettepe University School of Medicine, Ankara, Turkey
| | - Feza Korkusuz
- Department of Sports Medicine, Hacettepe University School of Medicine, Ankara, Turkey
| | - Bulent Okan Yıldız
- Department of Internal Medicine, Hacettepe University School of Medicine, Ankara, Turkey; Division of Endocrinology and Metabolism,Hacettepe University School of Medicine, Ankara, Turkey.
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Yan L, Rui C, Zhuang B, Liu X, Luan T, Jiang L, Dong Z, Wang Q, Wu A, Li P, Wang X, Zeng X. 17β-Estradiol Mediates Staphylococcus aureus Adhesion in Vaginal Epithelial Cells via Estrogen Receptor α-Associated Signaling Pathway. Curr Microbiol 2023; 80:391. [PMID: 37884702 DOI: 10.1007/s00284-023-03488-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Staphylococcus aureus, a major opportunistic pathogen in aerobic vaginitis (AV), can potentially invade the host and occasionally cause infections. Estrogen is associated with an altered immune response of vaginal epithelial cells and prevention of certain vaginal infectious diseases. However, the molecular mechanisms involving estrogen and S. aureus adhesion to vaginal epithelial cells remain unclear. Thus, here, VK2/E6E7 vaginal epithelial cells were infected with S. aureus, and the role of the estrogen receptor α-associated signaling pathway (ERα/FAK/Src/iNOS axis) in S. aureus adhesion was evaluated. The estrogen-associated phosphorylation status of ERα, FAK, and Src and the protein level of iNOS were assessed by western blotting. We used a specific ERα inhibitor to validate the involvement of the ERα-associated signaling pathway. The results showed that with exposure to 1 nM estrogen for 24 h, transient ERα-associated pathway activation was observed, and the protein expression upregulation was accompanied by a dose-dependent increase in 17-β-estradiol (E2) content and increased S. aureus adherence to vaginal epithelial cells. Estrogen-induced activation of the ERα/FAK/Src/iNOS axis was notably inhibited by the specific ERα inhibitor (ICI 182780). Simultaneously, a significant decrease in the number of adherent S. aureus was observed. However, this inhibitory effect diminished after inhibitor treatment for 24 h. Our findings suggested that the ERα-associated signaling pathway might be involved in S. aureus adherence to vaginal epithelial cells, which appeared to be linked to enhanced cell adhesion leading to AV.
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Affiliation(s)
- Lina Yan
- Department of Obstetrics and Gynecology, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, People's Republic of China.
- Department of Obstetrics and Gynecology, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, 213003, People's Republic of China.
| | - Can Rui
- Department of Obstetrics and Gynecology, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, People's Republic of China
| | - Bin Zhuang
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, People's Republic of China
| | - Xia Liu
- Department of Obstetrics and Gynecology, Jiangsu Taizhou People's Hospital, Taizhou, 225300, People's Republic of China
| | - Ting Luan
- Department of Obstetrics and Gynecology, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, People's Republic of China
| | - Lisha Jiang
- Department of Obstetrics and Gynecology, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, People's Republic of China
| | - Zhiyong Dong
- Department of Obstetrics and Gynecology, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, People's Republic of China
| | - Qing Wang
- Department of Obstetrics and Gynecology, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, People's Republic of China
| | - Aiwen Wu
- Department of Obstetrics and Gynecology, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, People's Republic of China
| | - Ping Li
- Department of Obstetrics and Gynecology, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, People's Republic of China
| | - Xinyan Wang
- Department of Obstetrics and Gynecology, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, People's Republic of China
| | - Xin Zeng
- Department of Obstetrics and Gynecology, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, People's Republic of China
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Hu D, Wang J, Cheng T, Li H, Zhang F, Zhao D, Xu X, Yu R, Wen P, Cheng Y, Xu J, Jin L, Yao J. Comparative analysis of serum and saliva samples using Raman spectroscopy: a high-throughput investigation in patients with polycystic ovary syndrome and periodontitis. BMC Womens Health 2023; 23:522. [PMID: 37794378 PMCID: PMC10552415 DOI: 10.1186/s12905-023-02663-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 09/18/2023] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND Polycystic ovary syndrome (PCOS) and periodontitis significantly affect women's oral and systemic health worldwide, and yet increase the risk of cardiovascular-metabolic diseases like diabetes and coronary heart disease. Regarding the PCOS-periodontitis connection, whether sex hormones, metabolic and inflammatory mediators could account for the underlying linking mechanism needs to be further investigated. This case-control study evaluated the hormonal, metabolic and inflammatory profiles in PCOS and non-PCOS subjects with various periodontal conditions, via assessing serum and saliva samples by Raman spectroscopy. METHODS A total of 66 females with PCOS and 22 systemically healthy female volunteers were recruited in a single hospital. Full-mouth periodontal examination was undertaken for identifying the subjects with periodontal health, gingivitis or periodontitis. The datasets of sex hormones and metabolic indicators were retrieved from the hospital information system. Both serum and saliva samples were collected for detecting inflammatory mediators and Raman spectroscopic assessment. The subjects were categorized into four groups according to their conditions of PCOS and periodontitis for Raman spectroscopic analysis. Partial least squares discriminant analysis was performed to examine the inter-group differences in Raman spectra. RESULTS PCOS patients exhibited greater mean probing depth (P < 0.05) and higher serum levels of triglycerides (P < 0.05) and matrix metalloproteinase-8 (P < 0.05) than those in non-PCOS participants. Both probing depth and triglyceride level were positively correlated with PCOS (P < 0.05). There was a significant difference in mean Raman spectra of saliva samples among the four groups with different conditions of PCOS and periodontitis (P < 0.05), while no significant inter-group difference existed in serum samples. CONCLUSIONS The present study shows that periodontal condition may affect the biomolecular profiles of Raman spectra in serum and saliva of PCOS patients. It underscores the importance of the collaborative teamwork of dentists and gynecologists for enhancing women's oral health, general wellbeing and quality of life.
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Affiliation(s)
- Dangli Hu
- Department of Obstetrics & Gynecology, Shenzhen Maternity and Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, 518028, China
| | - Jianmei Wang
- Single-Cell Center, CAS Key Laboratory of Biofuels, Shandong Key Laboratory of Energy Genetics and Shandong Energy Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Tianfan Cheng
- Division of Periodontology & Implant Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Huijun Li
- Department of Stomatology, Shenzhen Maternity and Child Healthcare Hospital, Shenzhen, 518028, China
| | - Feng Zhang
- Department of Stomatology, Shenzhen Maternity and Child Healthcare Hospital, Shenzhen, 518028, China
| | - Dan Zhao
- Division of Periodontology & Implant Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
- Department of Implant Dentistry, Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China
| | - Xiaoyi Xu
- Department of Science & Education, Shenzhen Maternity and Child Healthcare Hospital, Shenzhen, 518028, China
| | - Rong Yu
- Department of Science & Education, Shenzhen Maternity and Child Healthcare Hospital, Shenzhen, 518028, China
| | - Ping Wen
- Department of Science & Education, Shenzhen Maternity and Child Healthcare Hospital, Shenzhen, 518028, China
| | - Yunfei Cheng
- Single-Cell Center, CAS Key Laboratory of Biofuels, Shandong Key Laboratory of Energy Genetics and Shandong Energy Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Jian Xu
- Single-Cell Center, CAS Key Laboratory of Biofuels, Shandong Key Laboratory of Energy Genetics and Shandong Energy Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Lijian Jin
- Division of Periodontology & Implant Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China.
| | - Jilong Yao
- Department of Obstetrics & Gynecology, Shenzhen Maternity and Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, 518028, China.
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Cui X, Zhou S, Lin Y. Protective effects of liquiritin on polycystic ovary syndrome through modulating ovarian granulosa cell proliferation and apoptosis via miR-206/PI3K/AKT pathway. Cytotechnology 2022; 74:385-393. [DOI: 10.1007/s10616-022-00531-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 03/10/2022] [Indexed: 01/09/2023] Open
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Xiao W, Shen Y, Xu Y. LOX G473A induces the formation of osteoclasts in RAW264.7 cells via IL-6/JAK2/STAT3 signaling. Exp Cell Res 2021; 409:112890. [PMID: 34695437 DOI: 10.1016/j.yexcr.2021.112890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 10/14/2021] [Accepted: 10/18/2021] [Indexed: 10/20/2022]
Abstract
Formation of osteoclasts is known to be closely associated with osteoporosis progression. LOX is a key enzyme that catalyzes the synthesis of collagen, which is the new mediator in osteoclast formation. However, the effect of LOXG473A on of osteoclast formation needs to be explored. Thereby, we sought to explore the effect of LOXG473A on formation of osteoclasts and its underlying mechanism. To investigate the function of LOXG473A in osteoclast formation, Raw264.7 cells were stably transfected with LOX-WT or LOX-MUT (LOXG473A). Real-time PCR and western blotting were used to detect the relative levels of osteoclast formation related genes and proteins. TRAP staining and immunofluorescence staining were used to test the ability of Raw264.7 cells to form osteoclasts and the ability of cells to form rings, respectively. Bone erosion assay was used to test bone resorptive activity. The data indicated that LOXG473A significantly enhanced the ability of osteoclasts forming, ring-forming and bone resorpting in Raw264.7 cells. Mechanically, LOXG473A upregulated the expressions of NFATC1, ACP5, CTSK, IL-6, and the proportion of p-JAK2/JAK2 and p-STAT3/STAT3, thereby promoting the formation of osteoclasts. In conclusion, we have verified that LOXG473A induces the proliferation of osteoclasts in Raw264.7 cells via IL-6/JAK2/STAT3 signaling, suggesting a novel strategy for studying osteoporosis.
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Affiliation(s)
- Wenjin Xiao
- Department of Endocrinology, Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215004, China
| | - Yuxia Shen
- Department of Ultrasound, Suzhou Science and Technology Town Hospital, Suzhou, Jiangsu, 215153, China
| | - Youjia Xu
- Department of Orthopaedics, Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215004, China.
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