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Saei Ghare Naz M, Mousavi M, Mahboobifard F, Niknam A, Ramezani Tehrani F. A Meta-Analysis of Observational Studies on Prolactin Levels in Women with Polycystic Ovary Syndrome. Diagnostics (Basel) 2022; 12:diagnostics12122924. [PMID: 36552931 PMCID: PMC9777544 DOI: 10.3390/diagnostics12122924] [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: 10/20/2022] [Revised: 11/18/2022] [Accepted: 11/19/2022] [Indexed: 11/25/2022] Open
Abstract
Women with polycystic ovary syndrome (PCOS) are reported to have different levels of prolactin (PRL) compared to women without PCOS. This study aimed to evaluate the PRL levels in women with PCOS, compared to the control group, before and after adjustment for potential confounders. Using a logical combination of keywords, a comprehensive search was carried out in PubMed and Web of Science, from inception to 30 August 2022. Weighted mean differences (WMDs) with corresponding 95% CIs in PRL levels were employed with a random-effects model. I2 was applied to evaluate heterogeneity among studies. A meta-regression analysis and subgroup analysis were conducted to explore heterogeneity sources. Publication bias was assessed by the Egger test. Thirty-two studies, measuring PRL levels in 8551 PCOS patients according to the Rotterdam criteria and 13,737 controls, were included in the meta-analysis. Pooled effect size suggested that the overall weighted mean difference (WMD) of PRL level was significantly higher in women with PCOS, compared to controls (WMD = 1.01, 95% CI: 0.04-1.98, p = 0.040). The result of meta-regression adjusted for age, BMI, and the continent of origin, revealed no confounding effect on results. Sub-group analysis of PRL levels according to the continent of origin showed significantly higher PRL levels among Eurasian PCOS patients compared to the control; this difference was not statistically significant in the subgroups of women from Asia, Europe, and South America. In conclusion, PRL levels in patients who were diagnosed according to the Rotterdam criteria were significantly higher than non-PCOS participants. Slightly higher levels of PRL could be presented as a diagnostic feature of PCOS.
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Affiliation(s)
- Marzieh Saei Ghare Naz
- Reproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran P.O. Box 19395-476, Iran
| | - Maryam Mousavi
- Reproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran P.O. Box 19395-476, Iran
- Department of Biostatistics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran P.O. Box 14115-134, Iran
| | - Fatemeh Mahboobifard
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran P.O. Box 1985717443, Iran
| | - Atrin Niknam
- Reproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran P.O. Box 19395-476, Iran
| | - Fahimeh Ramezani Tehrani
- Reproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran P.O. Box 19395-476, Iran
- Correspondence: ; Tel.: +98-21-22432500; Fax: +98-21-22416264
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Navaeian M, Asadian S, Ahmadpour Yazdi H, Gheibi N. ANGPTL8 roles in proliferation, metabolic diseases, hypothyroidism, polycystic ovary syndrome, and signaling pathways. Mol Biol Rep 2021; 48:3719-3731. [PMID: 33864588 DOI: 10.1007/s11033-021-06270-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 03/05/2021] [Indexed: 12/18/2022]
Abstract
A new and atypical member of the ANGPTL family is angiopoietin-like protein 8 (ANGPTL8). This newly discovered hormone is a drug target that can be used to treat diabetes and dyslipidemia. The protein, as a hepatocyte-derived circulating factor, can control the triglyceride level of plasma. ANGPTL8 is significantly associated with inflammation and metabolic syndrome consequences such as obesity, diabetes, hypothyroidism, and PCOS. ANGPTL8 gene has four exons encoding a 22/5 kDa weight of 198 amino acid polypeptides. A highly preserved ANGPTL8 gene among mammals exhibits the essential hormone functions of ANGPTL8. Nevertheless, the physiological function of this hormone in the body is poorly understood. Studies published in PubMed (2008-2020), Google Scholar (2004-2020), and Scopus (2004-2020) databases of clinical trials were reviewed. This analysis is aimed at collecting information on ANGPTL8. The emphasis of this review was on gathering information about the role of ANGPTL8 in the metabolism of glucose and lipids and cell proliferation. It addition to the different roles of ANGPTL8 in diabetes and lipid metabolism, this review emphasized on the protein role in signaling pathways. The study also proposes the signaling pathways that may be considered as a new target for treatment.
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Affiliation(s)
- Maryam Navaeian
- Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Samieh Asadian
- Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Disease, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Hossein Ahmadpour Yazdi
- Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Disease, Qazvin University of Medical Sciences, Qazvin, Iran.
| | - Nematollah Gheibi
- Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Disease, Qazvin University of Medical Sciences, Qazvin, Iran.
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Gong W, Bilixzi A, Wang X, Lu Y, Wan L, Han L. The role of serum β-trophin and endostatin in patients with polycystic ovary syndrome: Are they correlated? BMC WOMENS HEALTH 2021; 21:104. [PMID: 33706732 PMCID: PMC7953644 DOI: 10.1186/s12905-021-01198-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 01/28/2021] [Indexed: 11/10/2022]
Abstract
Background It’s necessary to investigate the serum β-trophin and endostatin (ES) level and its influencing factors in patients with newly diagnosed polycystic ovary syndrome (PCOS). Methods Newly diagnosed PCOS patients treated in our hospital were selected, and healthy women who took physical examination during the same period as healthy controls. We detected and compared the related serum indicators between two groups, Pearson correlation were conducted to identify the factors associated with β-trophin and ES, and the influencing factors of β-trophin and ES were analyzed by logistic regression. Results A total of 62 PCOS patients and 65 healthy controls were included. The BMI, WHI, LH, FSH, TT, FAI, FBG, FINS, HOMA-IR, TC, TG, LDL, ES in PCOS patients were significantly higher than that of healthy controls, while the SHBG and HDL in PCOS patients were significantly lower than that of healthy controls (all p < 0.05). β-trophin was closely associated with BMI (r = 0.427), WHR (r = 0.504), FBG (r = 0.385), TG (r = 0.405) and LDL (r = 0.302, all p < 0.05), and ES was closely associated with BMI (r = 0.358), WHR (r = 0.421), FBG (r = 0.343), TC (r = 0.319), TG (r = 0.404, all p < 0.05). TG, BMI, WHR and FBG were the main factors affecting the serum β-trophin levels (all p < 0.05). FBG, TC and BMI were the main factors affecting the serum ES levels (all p < 0.05). The TG, β-trophin, ES level in PCOS patients with insulin resistance (IR) were significantly higher than that of those without IR (all p < 0.05). Conclusion Increased β-trophin is closely associated with increased ES in patients with PCOS, which may be the useful indicators for the management of PCOS.
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Affiliation(s)
- Wei Gong
- Department of Gynecology, The Fourth Affiliated Hospital of Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 214000, Xinjiang, China
| | - Aikmu Bilixzi
- Department of Gynecology, The Fourth Affiliated Hospital of Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 214000, Xinjiang, China
| | - Xinmei Wang
- Department of Gynecology, The Fourth Affiliated Hospital of Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 214000, Xinjiang, China
| | - Yanli Lu
- Department of Gynecology, The Fourth Affiliated Hospital of Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 214000, Xinjiang, China
| | - Li Wan
- Department of Gynecology, The Fourth Affiliated Hospital of Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 214000, Xinjiang, China
| | - Lu Han
- Department of Gynecology, The Fourth Affiliated Hospital of Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 214000, Xinjiang, China.
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Keyif B, Goksever Celik H, Karamustafaoglu Balci B, Mehves Celebi M, Ozaltin S, Takmaz O, Buyru F, Baştu E. Serum betatrophin levels are significantly increased in obese patients compared to lean patients regardless to the presence of PCOS. Gynecol Endocrinol 2020; 36:678-681. [PMID: 32129695 DOI: 10.1080/09513590.2020.1725964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Betatrophin, which regulates glucose metabolism, is primarily expressed in liver and fat tissue. We aimed to investigate betatrophin levels in patients with polycystic ovary syndrome (PCOS) that is the most common endocrine pathology in women of reproductive age. A total of 69 women were included in this prospective study: 35 patients with PCOS (18 obese and 17 lean) and 34 healthy controls (17 obese and 17 lean). Patients who met the criteria were compared regarding betatrophin levels and other hormonal values. Serum betatrophin level did not differ between obese PCOS patients and obese controls, and lean PCOS patients and lean controls; while significantly increased in obese PCOS patients and controls compared to lean PCOS patients and controls. Total testosterone and androstenedione were significantly higher in patients with PCOS than in controls both in the obese and lean groups, while sex hormone-binding globulin was significantly lower in patients with PCOS than in controls both in the obese and lean groups. However, remaining hormone values were similar between groups. Betatrophin level was significantly increased in obese patients compared to lean patients independent to the presence of PCOS.
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Affiliation(s)
- Betul Keyif
- Department of Obstetrics and Gynecology, Hakkari Yuksekova General Hospital, Hakkari, Turkey
| | - Hale Goksever Celik
- Department of Obstetrics and Gynecology, Saglik Bilimleri University Istanbul Kanuni Sultan Suleyman Training and Research Hospital, Istanbul, Turkey
| | - Burcin Karamustafaoglu Balci
- Istanbul Faculty of Medicine, Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Istanbul University, Istanbul, Turkey
| | - Merve Mehves Celebi
- Faculty of Medicine, Department of Obstetrics and Gynecology, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - Selin Ozaltin
- Faculty of Medicine, Department of Obstetrics and Gynecology, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - Ozguc Takmaz
- Faculty of Medicine, Department of Obstetrics and Gynecology, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - Faruk Buyru
- Faculty of Medicine, Department of Obstetrics and Gynecology, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - Ercan Baştu
- Faculty of Medicine, Department of Obstetrics and Gynecology, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
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Adipose Insulin Resistance and Circulating Betatrophin Levels in Women with PCOS. BIOMED RESEARCH INTERNATIONAL 2020; 2020:1253164. [PMID: 32076603 PMCID: PMC6996693 DOI: 10.1155/2020/1253164] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/29/2019] [Accepted: 12/16/2019] [Indexed: 12/14/2022]
Abstract
The role of IR and metabolic disorders has become a crucial topic of study in the pathogenesis of PCOS. Adipose tissue is an important target organ of insulin, and adipose IR plays an important role in the occurrence and development of PCOS. This study seeks to investigate the role of adipose IR in the development of PCOS and to examine its relationship with circulating betatrophin levels in women with PCOS. A cross-sectional analysis of a cohort of women with PCOS and healthy women was performed in this study. Serum betatrophin concentrations were measured by ELISA. Adipose IR was calculated using the product of fasting insulin and FFA concentrations, and the relationship between adipose IR, circulating betatrophin, and other parameters was analyzed. Adipose IR in women with PCOS was significantly higher than that in controls. We found that women with PCOS who have adipose IR (adipose IR ≥ 55) have a higher BMI and higher blood glucose, insulin, PRL, FFA, TG, HOMA-IR, AUCglucose, AUCinsulin, VAIfemale, and BAI levels than PCOS-afflicted women without adipose IR, while M-values, and SHBG and LH levels were lower. In women with PCOS, serum betatrophin levels were significantly increased compared with controls. Adipose IR negatively correlated with M values and positively with circulating betatrophin levels in the study population. After metformin treatment, circulating betatrophin levels and adipose IR in women with PCOS were significantly decreased compared with pretreatment. Adipose IR is associated with betatrophin levels in women with PCOS. The combination of adipose IR and circulating betatrophin measurements may be significant for screening patients with PCOS.
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Luo P, Zhang C, He Y, Yang G, Liu H, Li L. Several Circulating Biomarkers for PCOS Diagnosis. Exp Clin Endocrinol Diabetes 2019; 129:705-712. [PMID: 31683329 DOI: 10.1055/a-1025-3711] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
AIMS Irisin, Betatrophin and Zinc-α2-glycoprotein (ZAG) have been shown to be associated with insulin resistance (IR) and polycystic ovary syndrome (PCOS), respectively. The purpose of this study is to explore the potential accuracy of this combination of three cytokines in screening PCOS. METHODS 186 individuals were recruited for this study. Circulating Irisin, Betatrophin and ZAG concentrations were measured by enzyme-linked immunosorbent assay. The association between these serum biomarkers and PCOS was assessed by logistic regression analysis. Receiver operating curve (ROC) analysis was performed to evaluate the diagnostic value of these biomarkers for PCOS women. RESULTS In women with PCOS, serum Irisin and Betatrophin levels were markedly elevated compared to those in healthy controls (p<0.01), while ZAG levels were lower (p<0.01). PCOS women with IR (M-value<6.28) had lower circulating ZAG concentrations, and higher circulating Irisin and Betatrophin levels relative to PCOS women without IR (M-value ≥ 6.28). ROC curve analyses showed that the AUC for Irisin, ZAG and Betatrophin for predicting PCOS were 0.77, 0.83 and 0.85, respectively. In a joint ROC curves analysis of these serum markers and other parameters, the results showed that the AUC was 0.93, and the sensitivity and specificity were 82.1 % and 92.3 %, respectively. CONCLUSIONS When compared to using single cytokine, the analysis of Irisin, ZAG and Betatrophin elevates the accuracy in diagnosing PCOS.
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Affiliation(s)
- Peiqi Luo
- Laboratory of Diagnostic Medicine (Ministry of Education) and Department of Clinical Biochemistry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Cheng Zhang
- Laboratory of Diagnostic Medicine (Ministry of Education) and Department of Clinical Biochemistry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China.,The Center of Clinical Research of Endocrinology and Metabolic Diseases in Chongqing and Department of Endocrinology, Chongqing Three Gorges Central Hospital, Chongqing, China
| | - Yirui He
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Gangyi Yang
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Hua Liu
- Department of Pediatrics, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Ling Li
- Laboratory of Diagnostic Medicine (Ministry of Education) and Department of Clinical Biochemistry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
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Ozisik H, Suner A, Cetinkalp S. Prolactin effect on blood glucose and insülin in breastfeeding women. Diabetes Metab Syndr 2019; 13:1765-1767. [PMID: 31235091 DOI: 10.1016/j.dsx.2019.03.045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Accepted: 03/29/2019] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Prolactin plays a significant role in lactation and prolactin levels are increasing physiologically in pregnancy and breastfeeding period. There might be different mechanisms during breastfeeding between prolactin and insülin levels. In order to highlighten this mechanisms we compared the plasma levels of glucose, insülin, prolactin, C-peptid in basal situations and after taking 75 gr carbonhydrate, 20 gr protein, 23 gr fat in breastfeeding and in non lactating women. MATERIAL AND METHODS Participiants and measurements: The study population included 12 breastfeeding women and 11 healthy non lactating women as a control group. We collected information on age, history of gestational diabetes mellitus, family history of diabetes mellitus, natality, the symptoms of hypoglycemia. Weight, height and waist circumference were measured and body mass index (BMI) was calculated as weight (kg)/height (m2). RESULTS Prolactin was inversely correlated with HbA1c and 2. hour C peptide (p=0.005, r=-0.564; p=0.008, r=-0.539). Prolactin was not significantly correlated with HOMA-IR, HOMA-IS, AUC-I or AUC-G. Prolactin levels were higher in breastfeeding women (median:34.98 μg/L) than in non lactating women (median:12.21 μg/L, p<0.001). There was a significant association between age and fasting glucose (p=0.018, r=-0.665), 2. hour glucose (p=0.049, r=0.578) in breastfeeding women. DISCUSSION In our study, we displayed prolactin was inversely correlated with HbA1c and 2. hour C peptide. Some studies in the past demonstrated that higher prolactin levels had importantly lower prevelance of type 2 diabetes. Our findings supported this situation.
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Affiliation(s)
- Hatice Ozisik
- Ege University, Faculty of Medicine, Department of Endocrinology, İzmir, Turkey.
| | - Aslı Suner
- Ege University, Faculty of Medicine, Department of Biostatistics, İzmir, Turkey
| | - Sevki Cetinkalp
- Ege University, Faculty of Medicine, Department of Endocrinology, İzmir, Turkey
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Eksi Haydardedeoglu F, Bagir GS, Haydardedeoglu B, Bozkirli E, Bakiner O, Metin K, Ertorer ME. Serum betatrophin levels are reduced in patients with full-blown polycystic ovary syndrome. Gynecol Endocrinol 2019; 35:224-227. [PMID: 30241452 DOI: 10.1080/09513590.2018.1519791] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Betatrophin is defined as a new marker in glucose homeostasis and lipid metabolism. We aimed to investigate the role of serum betatrophin in full-blown polycystic ovary syndrome (PCOS) patients and 47-aged healthy women, 51 full-blown PCOS patients were included in this cross-sectional study. Betatrophin concentrations were significantly lower in PCOS group and displayed a positive correlation only with serum tryglyceride in control group (p < .05). A cutoff level (464.5 ng/L) was determined for betatrophin according to Receiver Operating Characteristic curve. Using this value, 64.7% of PCOS patients were classified as below the cutoff and in this group betatrophin was found to correlate negatively with fasting glucose, fasting insulin, and homeostasis model assessment of insulin resistance (p = .038, p = .020, and p = .014, respectively), and positively with total testosterone (p = .041). In the rest of PCOS cases (35.3%) who had betatrophin higher than cutoff, positive correlation was found with low-density lipoprotein cholesterol (p = .009). In conclusion, betatrophin levels are reduced in full-blown PCOS patients who had worse metabolic phenotype.
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Affiliation(s)
- Filiz Eksi Haydardedeoglu
- a Department of Endocrinology and Metabolism , Başkent University Faculty of Medicine , Adana , Turkey
| | - Gulay Simsek Bagir
- a Department of Endocrinology and Metabolism , Başkent University Faculty of Medicine , Adana , Turkey
| | - Bulent Haydardedeoglu
- b Division of Reproductive Endocrinology and IVF Unit, Department of Obstetrics and Gynecology , Başkent University Faculty of Medicine , Adana , Turkey
| | - Emre Bozkirli
- a Department of Endocrinology and Metabolism , Başkent University Faculty of Medicine , Adana , Turkey
| | - Okan Bakiner
- a Department of Endocrinology and Metabolism , Başkent University Faculty of Medicine , Adana , Turkey
| | - Kerem Metin
- c Department of Biochemistry , Başkent University Faculty of Medicine , Adana , Turkey
| | - Melek Eda Ertorer
- a Department of Endocrinology and Metabolism , Başkent University Faculty of Medicine , Adana , Turkey
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Varikasuvu SR, Panga JR, Satyanarayana MV. Circulating Angiopoietin-like 8 protein (ANGPTL8/Betatrophin) in patients with polycystic ovary syndrome: a systematic review and multi effect size meta-analysis. Gynecol Endocrinol 2019; 35:190-197. [PMID: 30614305 DOI: 10.1080/09513590.2018.1536736] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The association between circulating betatrophin levels and polycystic ovary syndrome (PCOS) is controversial and the studies in the literature are inconsistent. The aim of our study was to systematically review and meta-analyze all available literature comparing circulating betatrophin levels between human PCOS patients and controls. Relevant studies were retrieved by online database and manual searching. A total of 11 studies were included in this meta-analysis. The standardized mean differences (SMDs) with 95% confidence intervals (CIs) were obtained by a random-effects meta-analysis. Meta-analysis of correlations was performed for the associations of betatrophin with anthropometric, lipid and hormonal covariates in PCOS patients. The results indicated that the betatrophin levels were significantly elevated in PCOS patients as compared to non-PCOS controls (SMD = 0.73, 95% CI = 0.22-1.24, Z = 2.83, p = .005). A one-study leave-out sensitivity analysis indicated that no single study had a significant influence on the overall outcome, suggesting the robustness of this meta-analysis. Our sub-group analysis indicated that this increase in betatrophin concentrations was regardless of normo-weight or obese body mass index (BMI) and insulin resistance might have an important role. There were significant positive correlations of betatrophin with age, free androgen index and free-testosterone in PCOS patients. In summary, regardless of BMI, the circulatory betatrophin levels are elevated in PCOS patients compared to controls. PCOS patients with higher insulin resistance had substantially higher circulating betatrophin concentrations.
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Affiliation(s)
| | | | - M V Satyanarayana
- c Division of Obstetrics and Gynecology (MBBS Student) , Maheshwara Medical College & Hospital , Patancheru , India
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Kahraman S, Altinova AE, Yalcin MM, Gulbahar O, Arslan B, Akturk M, Cakir N, Toruner FB. Association of serum betatrophin with fibroblast growth factor-21 in women with polycystic ovary syndrome. J Endocrinol Invest 2018; 41:1069-1074. [PMID: 29363048 DOI: 10.1007/s40618-018-0831-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 01/10/2018] [Indexed: 12/29/2022]
Abstract
PURPOSE Betatrophin and fibroblast growth factor-21 (FGF-21), which are recently discovered members of hepatokine/adipokine family, have been proposed to be associated with some metabolic disorders in which insulin resistance plays a major role. METHODS We aimed to investigate serum betatrophin and FGF-21 concentrations in women with polycystic ovary syndrome (PCOS). In this cross-sectional study, we recruited 31 women with PCOS and 34 women as healthy controls. Serum betatrophin level and its relationship with serum FGF-21 level as well as metabolic parameters were examined. RESULTS Serum betatrophin level was significantly higher in women with PCOS than the control group [1.10 (0.20-4.20) vs 0.70 (0.20-3.50) ng/ml, p = 0.004], whereas FGF-21 did not differ between the groups [74.80 (7.80-435.90) vs 119.30 (10.50-443.40) pg/ml, p = 0.13]. Serum betatrophin correlated positively with LH levels (r = 0.26, p = 0.03). After controlling BMI, there was a significant positive correlation between betatrophin and FGF-21 (r = 0.25, p = 0.04). Multivariate regression analysis revealed that FGF-21 and presence of PCOS were the significant predictors of betatrophin concentrations (R2 = 0.22, F = 2.56, p = 0.03). CONCLUSIONS Our results indicate that betatrophin levels are increased and associated with LH and FGF-21 levels, but not with insulin resistance, in women with PCOS.
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Affiliation(s)
- S Kahraman
- Department of Internal Medicine, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - A E Altinova
- Department of Endocrinology and Metabolism, Faculty of Medicine, Gazi University, Beşevler, 06500, Ankara, Turkey.
| | - M M Yalcin
- Department of Endocrinology and Metabolism, Faculty of Medicine, Gazi University, Beşevler, 06500, Ankara, Turkey
| | - O Gulbahar
- Department of Biochemistry, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - B Arslan
- Department of Biochemistry, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - M Akturk
- Department of Endocrinology and Metabolism, Faculty of Medicine, Gazi University, Beşevler, 06500, Ankara, Turkey
| | - N Cakir
- Department of Endocrinology and Metabolism, Faculty of Medicine, Gazi University, Beşevler, 06500, Ankara, Turkey
| | - F B Toruner
- Department of Endocrinology and Metabolism, Faculty of Medicine, Gazi University, Beşevler, 06500, Ankara, Turkey
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11
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Wang H, Du L, Wu T, Yang G, Hu W, Wang H, Yang M, Liu D, Gu HF, Zhu Z, Zheng H, Li L. Circulating betatrophin is associated with insulin resistance in humans: cross-sectional and interventional studies in vivo and in vitro. Oncotarget 2017; 8:96604-96614. [PMID: 29228555 PMCID: PMC5722507 DOI: 10.18632/oncotarget.21852] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 10/05/2017] [Indexed: 12/11/2022] Open
Abstract
Betatrophin has a closely relationship with metabolism. However, its effect on metabolism disorder remains unclear. This study was comprised of a series of cross-sectional and interventional studies in vivo and vitro. PCOS women with IR and healthy women were recruited from the general population and outpatients. Plasma betatrophin levels were measured with ELISA. Insulin sensitivity was assessed with EHC. Gene expressions at mRNA and protein levels were determined with RT-PCR and Western blotting. Influences of insulin, metformin, rosiglitazone and over- or knockdown-expression of betatrophin were analyzed ex vivo. Our results indicated that IR women had higher betatrophin levels compared with the controls. Circulating betatrophin was positively correlated with BMI, WHR, Fat%, triglyceride, total cholesterol, LDL-C, AUCglucose and AUCinsulin, luteinizing Hormone, FAI and HOMA-IR but negatively with M-value. Metformin treatment in PCOS women with IR led to a reduction of betatrophin levels. Insulin stimulation in hepatocytes increased betatrophin expression. Metformin or rosiglitazone led to a reduction of betatrophin expression in insulin-stimulated hepatocytes. In hepatocytes/macrophages co-culture systems, betatrophin expression was significantly increased, whereas this increase was eliminated by rosiglitazone. In hepatocytes, overexpression and knockdown of betatrophin decreased or increased insulin-stimulated insulin receptor, protein kinase B and insulin receptor substrate-1 phosphorylation respectively. Serum from metformin-treated women with IR decreased betatrophin expression and reinforced insulin signals. Thus, the present study provides the in vivo and in vitro evidence, suggesting that there is a cell cross-talking between hepatocytes with macrophages for the regulating betatrophin and it may be a useful marker for IR and metabolic disorders.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Harvest F Gu
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Karolinska University Hospital, Huddinge, Stockholm, Sweden.,Center for Molecular Medicine, Karolinska Institute, Karolinska University Hospital, Solna, Stockholm, Sweden
| | - Zhiming Zhu
- Department of Hypertension and Endocrinology, Daping Hospital, Third Military Medical University, Chongqing Institute of Hypertension, Chongqing, China
| | - Hongting Zheng
- Department of Endocrinology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Ling Li
- The Key Laboratory of Laboratory Medical Diagnostics in The Ministry of Education and Department of Clinical Biochemistry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
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12
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Goyal M, Dawood AS. Debates Regarding Lean Patients with Polycystic Ovary Syndrome: A Narrative Review. J Hum Reprod Sci 2017; 10:154-161. [PMID: 29142442 PMCID: PMC5672719 DOI: 10.4103/jhrs.jhrs_77_17] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Polycystic ovary syndrome (PCOS) is a complex syndrome showing the clinical features of an endocrine/metabolic disorder, including hyperinsulinemia and hyperandrogenism. Two phenotypes are present, either lean or obese, with different biochemical, hormonal, and metabolic profiles. Evidence suggests many treatment modalities that can be applied. However, many of these modalities were found to be not suitable for the lean phenotype of PCOS. Much contradictory research was found regarding lean patients with PCOS. The aim of this narrative review is to shed light on the debate prevailing regarding characteristics, as well as metabolic, hematological, and potential management modalities. Literature review was performed from January 1, 2000 to March 31, 2017 with specific word search such as lean PCOS, hormonal abnormalities in lean PCOS, and the management of lean PCOS. All retrieved articles were carefully assessed, and data were obtained. We could conclude that the debate is still prevailing regarding this specific lean population with PCOS, especially with regard to their characteristics and management modalities. Further studies are still required to resolve this debate on the presence of PCOS in lean women.
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Affiliation(s)
- Manu Goyal
- Department of Obstetrics and Gynecology, AIIMS, New Delhi, India
| | - Ayman S Dawood
- Department of Obstetrics and Gynecology, Tanta University, Tanta, Egypt
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13
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Adamska A, Łebkowska A, Jacewicz M, Krentowska A, Hryniewicka J, Wołczyński S, Górska M, Kowalska I. Serum Concentrations of Betatrophin and Its Association with Indirect Indices of Insulin Resistance and Beta Cell Function in Women with Polycystic Ovary Syndrome. Int J Endocrinol 2017; 2017:2316986. [PMID: 28702052 PMCID: PMC5494124 DOI: 10.1155/2017/2316986] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 04/27/2017] [Accepted: 05/04/2017] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION Data underline the role of betatrophin in glucose homeostasis. Polycystic ovary syndrome (PCOS) is characterized by insulin resistance (IR). The aim of our study was to investigate the relationship of serum betatrophin concentrations with indirect indices of IR and insulin secretion in women with PCOS, compared to the control group. METHODS The study group comprised 43 women with PCOS and 16 controls. IR was assessed by HOMA-IR and Matsuda index. Insulin secretion was evaluated with HOMA-B. An oral glucose tolerance test (OGTT) with estimation of serum betatrophin concentrations was performed. RESULTS Glucose load resulted in an increase in serum betatrophin concentrations in the control group (p = 0.02). Serum betatrophin concentrations at 120 min of OGTT were lower in women with PCOS than in the control group (p = 0.02). We observed positive correlations between baseline serum betatrophin concentrations and HOMA-IR (r = 0.39, p = 0.008), negative correlations with Matsuda index (r = -0.31, p = 0.004), and a positive relationship with HOMA-B (r = 0.38, p = 0.01) in women with PCOS. Multiple regression analysis revealed that HOMA-B (β = 0.47, p = 0.001) was an independent factor connected to serum betatrophin levels in PCOS. CONCLUSIONS Serum concentrations of betatrophin are connected with insulin resistance and beta cell function and did not change after glucose load in women with PCOS.
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Affiliation(s)
- Agnieszka Adamska
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Białystok, Białystok, Poland
- *Agnieszka Adamska:
| | - Agnieszka Łebkowska
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Białystok, Białystok, Poland
| | - Małgorzata Jacewicz
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Białystok, Białystok, Poland
| | - Anna Krentowska
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Białystok, Białystok, Poland
| | - Justyna Hryniewicka
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Białystok, Białystok, Poland
| | - Sławomir Wołczyński
- Department of Reproduction and Gynecological Endocrinology, Medical University of Białystok, Białystok, Poland
| | - Maria Górska
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Białystok, Białystok, Poland
| | - Irina Kowalska
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Białystok, Białystok, Poland
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