Vitamin D predictors in polycystic ovary syndrome: a meta-analysis

March, 2010, The prevalence of polycystic ovary syndrome in a community sample assessed under contrasting diagnostic criteria, Hum Reprod, 25, 544, 10.1093/humrep/dep399

Ginde, 2009, Demographic differences and trends of vitamin D insufficiency in the US population, 1988-2004, Arch Intern Med, 169, 626, 10.1001/archinternmed.2008.604

Langlois, 2010, Vitamin D. Status of Canadians as Measured in the 2007 to 2009 Canadian Health Measures Survey, Health Rep, 21, 47

Prentice, 2008, Vitamin D deficiency: a global perspective, Nutr Rev, 66, S153, 10.1111/j.1753-4887.2008.00100.x

Lips, 2010, Worldwide status of vitamin D nutrition, J Steroid Biochem Mol Biol, 121, 297, 10.1016/j.jsbmb.2010.02.021

Panidis, 2005, Serum parathyroid hormone concentrations are increased in women with polycystic ovary syndrome, Clin Chem, 51, 1691, 10.1373/clinchem.2005.052761

Li, 2011, Vitamin D deficiency is common and associated with metabolic risk factors in patients with polycystic ovary syndrome, Metabolism, 60, 1475, 10.1016/j.metabol.2011.03.002

Wehr, 2011, Vitamin D associated polymorphisms are related to insulin resistance and vitamin D deficiency in polycystic ovary syndrome, Eur J Endocrinol, 164, 741, 10.1530/EJE-11-0134

Mazloomi, 2012, Association between hypoadiponectinemia and low serum concentrations of calcium and vitamin D in women with polycystic ovary syndrome, ISRN Endocrinol, 2012, 949427, 10.5402/2012/949427

Lerchbaum, 2012, Adult-type hypolactasia and calcium intake in polycystic ovary syndrome, Clin Endocrinol (Oxf), 77, 834, 10.1111/j.1365-2265.2012.04334.x

Mahmoudi, 2010, Calciotropic hormones, insulin resistance, and the polycystic ovary syndrome, Fertil Steril, 93, 1208, 10.1016/j.fertnstert.2008.11.031

Jia, 2015, Effect of vitamin D on clinical and biochemical parameters in polycystic ovary syndrome women: a meta-analysis, J Obstet Gynaecol Res, 41, 1791, 10.1111/jog.12793

He, 2015, Serum Vitamin D Levels and Polycystic Ovary syndrome: A Systematic Review and Meta-Analysis, Nutrients, 7, 4555, 10.3390/nu7064555

Wortsman, 2000, Decreased bioavailability of vitamin D in obesity, Am J Clin Nutr, 72, 690, 10.1093/ajcn/72.3.690

Moher, 2010, Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement, Int J Surg, 8, 336, 10.1016/j.ijsu.2010.02.007

Gallea, 2014, Insulin and body weight but not hyperandrogenism seem involved in seasonal serum 25-OH-vitamin D3 levels in subjects affected by PCOS, Gynecol Endocrinol, 30, 739, 10.3109/09513590.2014.927857

Hahn, 2006, Low serum 25-hydroxyvitamin D concentrations are associated with insulin resistance and obesity in women with polycystic ovary syndrome, Exp Clin Endocrinol Diabetes, 114, 577, 10.1055/s-2006-948308

Wehr, 2009, Association of hypovitaminosis D with metabolic disturbances in polycystic ovary syndrome, Eur J Endocrinol, 161, 575, 10.1530/EJE-09-0432

Yildizhan, 2009, Serum 25-hydroxyvitamin D concentrations in obese and non-obese women with polycystic ovary syndrome, Arch Gynecol Obstet, 280, 559, 10.1007/s00404-009-0958-7

Ranjzad, 2011, Influence of gene variants related to calcium homeostasis on biochemical parameters of women with polycystic ovary syndrome, J Assist Reprod Genet, 28, 225, 10.1007/s10815-010-9506-4

Nelson-DeGrave, 2005, Alterations in mitogen-activated protein kinase kinase and extracellular regulated kinase signaling in theca cells contribute to excessive androgen production in polycystic ovary syndrome, Mol Endocrinol, 19, 379, 10.1210/me.2004-0178

Nestler, 1998, Insulin stimulates testosterone biosynthesis by human thecal cells from women with polycystic ovary syndrome by activating its own receptor and using inositolglycan mediators as the signal transduction system, J Clin Endocrinol Metab, 83, 2001

Willis, 1996, Modulation by insulin of follicle-stimulating hormone and luteinizing hormone actions in human granulosa cells of normal and polycystic ovaries, J Clin Endocrinol Metab, 81, 302

Qin, 1998, Role of cytochrome P450c17 in polycystic ovary syndrome, Mol Cell Endocrinol, 145, 111, 10.1016/S0303-7207(98)00177-4

Wood, 2003, The molecular phenotype of polycystic ovary syndrome (PCOS) theca cells and new candidate PCOS genes defined by microarray analysis, J Biol Chem, 278, 26380, 10.1074/jbc.M300688200

Dunaif, 1997, Insulin resistance and the polycystic ovary syndrome: mechanism and implications for pathogenesis, Endocr Rev, 18, 774

Muscogiuri, 2012, Low levels of 25(OH)D and insulin-resistance: 2 unrelated features or a cause-effect in PCOS?, Clin Nutr, 31, 476, 10.1016/j.clnu.2011.12.010

Jorde, 2009, Supplementation with cholecalciferol does not improve glycaemic control in diabetic subjects with normal serum 25-hydroxyvitamin D levels, Eur J Nutr, 48, 349, 10.1007/s00394-009-0020-3

Thys-Jacobs, 1999, Vitamin D and calcium dysregulation in the polycystic ovarian syndrome, Steroids, 64, 430, 10.1016/S0039-128X(99)00012-4