Myostatin and its association with abdominal obesity, androgen and follistatin levels in women with polycystic ovary syndrome

Mei Jou Chen, Der Sheng Han, Jehn Hsiahn Yang, Yu Shih Yang, Hong Nerng Ho, Wei Shiung Yang

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

summary answers: The myostatin level was positively correlated to the risk of abdominal obesity, but negatively associated with circulating levels of dehydroepiandrosterone sulfate (DHEAS) and follistatin in women with PCOS. what is known and what this paper adds: Myostatin is a well-known negative regulator of skeletal muscle and is involved in metabolism; however, little is known about the role of myostatin in women with PCOS. In this study, we found that the myostatin level was positively related to the risk of abdominal obesity, but negatively related to the circulating levels of DHEAS and follistatin in women with PCOS. Such a relationship might imply a potential regulatory role of androgens and follistatin in the metabolism of skeletal muscle in women with PCOS. design: A cross-sectional case-control study. participants and setting: A total of 239 untreated, consecutive women with PCOS and 38 healthy volunteer women without PCOS were enrolled and studied in a tertiary medical center. main results and the role of chance: Myostatin level was higher in women with PCOS than those without PCOS (16.6± 15.6 and 14.2±9.7, P = 0.025), but were not significantly different between non-obese women with and without PCOS after considering the effect of obesity (P = 0.09). Stepwise multivariate regression analysis in women revealed that only the presence of PCOS (β = 0.256, P = 0.0001), total testosterone (β = 0.159, P = 0.031), DHEAS (b = 20.188, P = 0.0003) and follistatin (β = 20.171, P = 0.0001) levels were left in the final model and were significantly related to the myostatin level after considering all the explanatory variables. By using stepwise multivariate regression analysis, the total testosterone levels (b = 0.196, P = 0.003) were positively, but the DHEAS (β = 20.196, P , 0.0001) and follistatin (β = 20.151, P = 0.0001) levels were negatively, related to myostatin levels in women with PCOS after adjustment for age, anthropometric measurements, insulin sensitivity index and hormonal profiles. The high myostatin level was associated with the increased risk of abdominal obesity after further adjusting the androgens and follistatin levels in women with PCOS. limitation, reasons for caution: This study is a cross-sectional case-control design, and therefore, cannot answer the cause-effect relationship among the androgens, follistatin and myostatin levels. The small sample size and non-obese control group may also limit the application of the conclusion of the present study to general population other than women with PCOS. In addition, lack of data regarding muscle mass is another limitation in this study that prevents clarification of the relationship between myostatin, lean mass and obesity and therefore restricts the clinical application of the results. wider implications of the findings: Future studies to investigate the efficacy of exercise and lifestyle modification in treating women with PCOS should consider the myostatin, follistatin and androgen levels as well as the effect of muscle mass and BMI. study funding/competing interest: This study was supported by grants NSC97-2314-B002-079-MY3, NSC98-2314- B002-105-MY3 and NSC 100-2314-B002-027-MY3 from the National Science Council of Taiwan. There is no competing interest declared in this study.

Original languageEnglish
Pages (from-to)2476-2483
Number of pages8
JournalHuman Reproduction
Volume27
Issue number8
DOIs
Publication statusPublished - Jan 1 2012

Fingerprint

Myostatin
Follistatin
Biological Models
Dehydroepiandrosterone Sulfate
Anthropometry
Abdominal Obesity
Polycystic Ovary Syndrome
Gene Expression Regulation
Androgens
Case-Control Studies
Obesity
Cross-Sectional Studies
Mutation
Testosterone
Skeletal Muscle
Multivariate Analysis
Regression Analysis
Muscles
Organized Financing
Taiwan

Keywords

  • Androgen
  • DHEAS
  • Follistatin
  • Myostatin
  • Obesity
  • Polycystic ovary syndrome

ASJC Scopus subject areas

  • Reproductive Medicine
  • Obstetrics and Gynaecology

Cite this

Myostatin and its association with abdominal obesity, androgen and follistatin levels in women with polycystic ovary syndrome. / Chen, Mei Jou; Han, Der Sheng; Yang, Jehn Hsiahn; Yang, Yu Shih; Ho, Hong Nerng; Yang, Wei Shiung.

In: Human Reproduction, Vol. 27, No. 8, 01.01.2012, p. 2476-2483.

Research output: Contribution to journalArticle

Chen, Mei Jou ; Han, Der Sheng ; Yang, Jehn Hsiahn ; Yang, Yu Shih ; Ho, Hong Nerng ; Yang, Wei Shiung. / Myostatin and its association with abdominal obesity, androgen and follistatin levels in women with polycystic ovary syndrome. In: Human Reproduction. 2012 ; Vol. 27, No. 8. pp. 2476-2483.
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T1 - Myostatin and its association with abdominal obesity, androgen and follistatin levels in women with polycystic ovary syndrome

AU - Chen, Mei Jou

AU - Han, Der Sheng

AU - Yang, Jehn Hsiahn

AU - Yang, Yu Shih

AU - Ho, Hong Nerng

AU - Yang, Wei Shiung

PY - 2012/1/1

Y1 - 2012/1/1

N2 - summary answers: The myostatin level was positively correlated to the risk of abdominal obesity, but negatively associated with circulating levels of dehydroepiandrosterone sulfate (DHEAS) and follistatin in women with PCOS. what is known and what this paper adds: Myostatin is a well-known negative regulator of skeletal muscle and is involved in metabolism; however, little is known about the role of myostatin in women with PCOS. In this study, we found that the myostatin level was positively related to the risk of abdominal obesity, but negatively related to the circulating levels of DHEAS and follistatin in women with PCOS. Such a relationship might imply a potential regulatory role of androgens and follistatin in the metabolism of skeletal muscle in women with PCOS. design: A cross-sectional case-control study. participants and setting: A total of 239 untreated, consecutive women with PCOS and 38 healthy volunteer women without PCOS were enrolled and studied in a tertiary medical center. main results and the role of chance: Myostatin level was higher in women with PCOS than those without PCOS (16.6± 15.6 and 14.2±9.7, P = 0.025), but were not significantly different between non-obese women with and without PCOS after considering the effect of obesity (P = 0.09). Stepwise multivariate regression analysis in women revealed that only the presence of PCOS (β = 0.256, P = 0.0001), total testosterone (β = 0.159, P = 0.031), DHEAS (b = 20.188, P = 0.0003) and follistatin (β = 20.171, P = 0.0001) levels were left in the final model and were significantly related to the myostatin level after considering all the explanatory variables. By using stepwise multivariate regression analysis, the total testosterone levels (b = 0.196, P = 0.003) were positively, but the DHEAS (β = 20.196, P , 0.0001) and follistatin (β = 20.151, P = 0.0001) levels were negatively, related to myostatin levels in women with PCOS after adjustment for age, anthropometric measurements, insulin sensitivity index and hormonal profiles. The high myostatin level was associated with the increased risk of abdominal obesity after further adjusting the androgens and follistatin levels in women with PCOS. limitation, reasons for caution: This study is a cross-sectional case-control design, and therefore, cannot answer the cause-effect relationship among the androgens, follistatin and myostatin levels. The small sample size and non-obese control group may also limit the application of the conclusion of the present study to general population other than women with PCOS. In addition, lack of data regarding muscle mass is another limitation in this study that prevents clarification of the relationship between myostatin, lean mass and obesity and therefore restricts the clinical application of the results. wider implications of the findings: Future studies to investigate the efficacy of exercise and lifestyle modification in treating women with PCOS should consider the myostatin, follistatin and androgen levels as well as the effect of muscle mass and BMI. study funding/competing interest: This study was supported by grants NSC97-2314-B002-079-MY3, NSC98-2314- B002-105-MY3 and NSC 100-2314-B002-027-MY3 from the National Science Council of Taiwan. There is no competing interest declared in this study.

AB - summary answers: The myostatin level was positively correlated to the risk of abdominal obesity, but negatively associated with circulating levels of dehydroepiandrosterone sulfate (DHEAS) and follistatin in women with PCOS. what is known and what this paper adds: Myostatin is a well-known negative regulator of skeletal muscle and is involved in metabolism; however, little is known about the role of myostatin in women with PCOS. In this study, we found that the myostatin level was positively related to the risk of abdominal obesity, but negatively related to the circulating levels of DHEAS and follistatin in women with PCOS. Such a relationship might imply a potential regulatory role of androgens and follistatin in the metabolism of skeletal muscle in women with PCOS. design: A cross-sectional case-control study. participants and setting: A total of 239 untreated, consecutive women with PCOS and 38 healthy volunteer women without PCOS were enrolled and studied in a tertiary medical center. main results and the role of chance: Myostatin level was higher in women with PCOS than those without PCOS (16.6± 15.6 and 14.2±9.7, P = 0.025), but were not significantly different between non-obese women with and without PCOS after considering the effect of obesity (P = 0.09). Stepwise multivariate regression analysis in women revealed that only the presence of PCOS (β = 0.256, P = 0.0001), total testosterone (β = 0.159, P = 0.031), DHEAS (b = 20.188, P = 0.0003) and follistatin (β = 20.171, P = 0.0001) levels were left in the final model and were significantly related to the myostatin level after considering all the explanatory variables. By using stepwise multivariate regression analysis, the total testosterone levels (b = 0.196, P = 0.003) were positively, but the DHEAS (β = 20.196, P , 0.0001) and follistatin (β = 20.151, P = 0.0001) levels were negatively, related to myostatin levels in women with PCOS after adjustment for age, anthropometric measurements, insulin sensitivity index and hormonal profiles. The high myostatin level was associated with the increased risk of abdominal obesity after further adjusting the androgens and follistatin levels in women with PCOS. limitation, reasons for caution: This study is a cross-sectional case-control design, and therefore, cannot answer the cause-effect relationship among the androgens, follistatin and myostatin levels. The small sample size and non-obese control group may also limit the application of the conclusion of the present study to general population other than women with PCOS. In addition, lack of data regarding muscle mass is another limitation in this study that prevents clarification of the relationship between myostatin, lean mass and obesity and therefore restricts the clinical application of the results. wider implications of the findings: Future studies to investigate the efficacy of exercise and lifestyle modification in treating women with PCOS should consider the myostatin, follistatin and androgen levels as well as the effect of muscle mass and BMI. study funding/competing interest: This study was supported by grants NSC97-2314-B002-079-MY3, NSC98-2314- B002-105-MY3 and NSC 100-2314-B002-027-MY3 from the National Science Council of Taiwan. There is no competing interest declared in this study.

KW - Androgen

KW - DHEAS

KW - Follistatin

KW - Myostatin

KW - Obesity

KW - Polycystic ovary syndrome

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