12 papers

Shirin Kalyan

Prevalence of ocular anomalies is increased in women with polycystic ovary syndrome-exploration of association with PAX6 genotype

Zong Z et al., 2022 Ophthalmic Genet

Polycystic Ovarian Syndrome (PCOS), the most common reproductive endocrine disorder affecting premenopausal women, is frequently associated with central obesity and pancreatic β-cell dysfunction. Aniridia, a rare congenital eye disorder with haploinsufficiency of the PAX6 gene, was observed to co-occur with PCOS in a proband. This study investigates eye health and PAX6 genotypes of women with PCOS and controls. This is a cross-sectional study of 203 premenopausal women (100 healthy controls, 103 with PCOS) conducted at an academic medical center in Vancouver, Canada. Ophthalmological exams and detailed medical histories were obtained from each participant. DNA extracted from saliva was Sanger-sequenced for the exons, intron-exon boundaries, and untranslated regions of PAX6. Women with PCOS had eye abnormalities, including abnormalities of the anterior segment, optic nerve, and retina, that were not observed in controls (p = 0.0002). Myopia prevalence was similar in both groups. Dry eye syndrome, by history, was markedly more prevalent in women with PCOS (22.3%) than controls (5%), p = 0.004. PAX6 genotype did not significantly differ between the two groups, nor was it associated with the greater prevalence of eye anomalies observed in women with PCOS. This is the first study to systematically perform an ophthalmological examination in women with PCOS, who were found to have a higher prevalence of potentially serious eye health problems compared with controls. These data suggest that ophthalmological-metabolic-genetic connections in women with PCOS require further investigation. Confirmation of these data and increased attention to eye health in women with PCOS appears warranted.

MON-LB042 Health-Related Quality of Life in Women with Polycystic Ovary Syndrome/Anovulatory Androgen Excess versus Local Population-Based Control Women (from the British Columbia Canadian Multicentre Osteoporosis Study [BC CaMos])

Liang B et al., 2019 J Endocr Soc Open Access

Polycystic Ovary Syndrome (PCOS) affects 5-20% of reproductive-aged women and is associated with lower Health-Related Quality of Life (HRQoL)1,2,3. HRQoL in PCOS, however, is often determined in small or clinical samples with no or convenience sample controls. Our aim was to cross-sectionally compare generic SF-36 HRQoL results in community dwelling, physician-diagnosed women with PCOS to randomly selected age-similar local women. Women with PCOS/AAE had enrolled in two local studies (n = 93)4, and were eligible if they were non-menopausal and had PCOS based on Androgen Excess/PCOS Society criteria. Eligibility in both groups required age ≤53 years and, for controls, menstruation in the last year. Control women were from both Adult and Youth BC CaMos cohorts (n = 56). All completed the interviewer-administered CaMos questionnaire5. Statistical analysis used descriptive, T-test and multiple regression to explore relationships among HRQoL domains/component scores versus demographic, anthropomorphic and comorbid condition variables, particularly body mass index (BMI), physical activity patterns and combined hormonal contraceptive (CHC) usage. We compared SF-36 data in pre/perimenopausal women mean aged 34.5±10.0 (SD) years, BMI 27.5±7.5. After controlling for BMI, education, comorbidities and past use of CHC, all HRQoL domain and component scores were significantly lower in women with PCOS then in controls. Domain score differences of 5 are clinically important; PCOS women scored -5.8 to -19.9 points lower (mean -11.6) with the greatest difference for Emotional Role. The Physical Component summary score was -2.2 and the Mental Component summary -7.2 lower in women with PCOS compared with population-based controls; score differences of 2-3 are considered clinically important. In both groups, participation in regular exercise was the strongest predictor of higher overall HRQoL. In both cohorts, comorbidity negatively predicted the physical component score (PCS) of HRQoL; PCOS status negatively predicted the mental component score of HRQoL. PCS group differences became less significant as BMI increased, but MCS remained significantly different. This first comparison of the validated, generic SF-36 in pre/perimenopausal population-based versus women with PCOS documented highly significantly lower scores in women with PCOS on all domains and both components. These data confirm evidence that participation in regular exercise is related to better overall HRQoL in PCOS. Also, obesity in women with PCOS, in contrast to controls, was not associated with the overall HRQoL. We also found that CHC was associated with general health, mental health and mental component scores in women with PCOS. Ref.1Prior JCEM 2014; 2Alvarez-Blasco Clin Endo 2010; 3Azziz Fertil Steril 2009; 4Kalyan Sci Reports 2017; 5Kreiger Can J. Aging 1999. Unless otherwise noted, all abstracts presented at ENDO are embargoed until the date and time of presentation. For oral presentations, the abstracts are embargoed until the session begins. Abstracts presented at a news conference are embargoed until the date and time of the news conference. The Endocrine Society reserves the right to lift the embargo on specific abstracts that are selected for promotion prior to or during ENDO.

Bone Mineral Density · Peak Bone Mass

Combined hormonal contraceptives use and bone mineral density changes in adolescent and young women in a prospective population-based Canada-wide observational study

Brajic TS et al., 2018 J Musculoskelet Neuronal Interact

To assess combined hormonal contraceptives (CHC) use and adolescent women's peak areal bone mineral density (BMD) accrual. We enrolled 527 randomly selected women across Canada (2004-6) divided by age into adolescents (16-19) and young adults (20-24) and by CHC use to ever (E-CHC)/never (N-CHC) users. At baseline and year 2 we measured height, weight, and BMD at lumbar spine (L1-4), femoral neck, and total hip sites. Interviewer-administered questionnaires addressed menarche age, cigarette and alcohol use, calcium/vitamin D intakes, physical activity and estrogen dose (≤30/>30 micrograms). Linear regression models examined associations of CHC use with 2-year BMD change adjusted for bone-related variables. Of 307 women with complete data, 229 (75%) used CHC. N-CHC adolescents gained significantly more unadjusted total hip BMD +0.012 g/cm(2)/2-y (95% C.I.: 0.001, 0.023) with similar trends at all sites. N-CHC adolescents tended to have greater adjusted femoral neck BMD gain: mean difference +0.009 g/cm(2) (95% CI: -0.002; 0.021). In young women N-CHC, however, adjusted femoral neck BMD decreased significantly more -0.021 g/cm(2) (95%CI: -0.006; -0.036) with similar trends at other sites. BMD changes were unrelated to estrogen dose and age at starting CHC. Adolescent CHC users in a random population demonstrated less hip region peak BMD accrual than non-users. This requires randomized control trial confirmation.

Bone Mineral Density · Measurement

Premature Spinal Bone Loss in Women Living with HIV is Associated with Shorter Leukocyte Telomere Length

Kalyan S et al., 2018 Int J Environ Res Public Health Open Access

With advances in combination antiretroviral therapy (cART), people living with HIV are now surviving to experience aging. Evidence suggests that individuals living with HIV are at greater risk for low bone mineral density (BMD), osteoporosis, and fractures. Better understanding of the pathophysiology of bone health in women living with HIV (WLWH) is important for treatment strategies. The goal of this study was to explore new biological factors linked to low BMD in WLWH. Standardized BMD measures of WLWH were compared to reference values from an unselected population of women from the same geographical region of the same age range. Linear regression analysis was used to assess relationships among health-related characteristics, cellular aging (measured by leukocyte telomere length; LTL), cART, and BMD of WLWH. WLWH (n = 73; mean age 43 ± 9 years) had lower BMD Z-scores at the lumbar spine (LS) (mean difference = -0.39, p p = 0.012) relative to controls (n = 290). WLWH between 50 and 60 years (n = 17) had lower Z-scores at the LS (p = 0.008) and TH (p = 0.027) compared to controls (n = 167). Among WLWH, LS BMD was significantly associated with LTL (R² = 0.09, p = 0.009) and BMI (R² = 0.06, p = 0.042). Spinal BMD was adversely affected in WLWH. Reduction of LTL was strongly associated with lower BMD and may relate to its pathophysiology and premature aging in WLWH.

Hormones and Bone · Estrogen and Bone

Estrogen-progestin therapy causes a greater increase in spinal bone mineral density than estrogen therapy - a systematic review and meta-analysis of controlled trials with direct randomization

Prior JC et al., 2017 J Musculoskelet Neuronal Interact

To assess whether progesterone (P4) or osteoblast P4 receptor-acting progestin (P) contributed to estrogen (E) therapy-related increased areal bone mineral density (BMD) in randomized controlled trials (RCT) with direct randomization to estrogen (ET) or estrogen-progestin (EPT) therapy. Systematic literature searches in biomedical databases identified RCT with direct randomization and parallel estrogen doses that measured spinal BMD change/year. Cyclic P4/P was included in this random effects meta-analysis only if for ≥ half the number of E-days. Searches yielded 155 publications; five met inclusion criteria providing eight dose-parallel ET-EPT comparisons in 1058 women. Women averaged mid-50 years, ⟨five years into menopause and took conjugated equine E daily at 0.625 mg with/without 2.5 mg medroxyprogesterone acetate (MPA). The weighted mean EPT minus ET percentage difference in spinal BMD change was +0.68%/year (95% CI 0.38, 0.97%) (P=0.00001). This result was highly heterogeneous (I²=81%) but this may reflect the small number of studies. Estrogen with an osteoblast P4R-acting progestin (EPT) in these five published RCT provides Level 1 evidence that MPA caused significantly greater annual percent spinal BMD gains than the same dose of ET. These data have implications for management of vasomotor symptoms and potentially for osteoporosis treatment in menopausal women.

Bone Mineral Density · Measurement

Competing Factors Link to Bone Health in Polycystic Ovary Syndrome: Chronic Low-Grade Inflammation Takes a Toll

Kalyan S et al., 2017 Sci Rep Open Access

Chronic inflammation predisposes to poor bone health. Women with polycystic ovary syndrome (PCOS) experience androgen excess, ovulatory disturbances, insulin resistance, abdominal adiposity and chronic inflammation. Our objective was to investigate the relationships among bone health parameters, chronic subclinical inflammation and anthropometric measures in premenopausal women with and without PCOS. In 61 premenopausal women, 22 women with PCOS and 39 controls, we assessed bone parameters (total hip bone mineral density [BMD] by dual-energy X-ray absorptiometry and radius strength-strain index [SSI] by peripheral quantitative computed tomography), inflammation (C-reactive protein/albumin), oxidative stress (leukocyte telomere length, urinary 8-hydroxydeoxyguanosine); hemoglobin A1c; anthropometric measures (body mass index, waist-to-height ratio, cross-sectional muscle area). A diagnosis of PCOS negatively predicted (beta = -0.251, p = 0.022) hip BMD in a regression model including weight. In women with PCOS, inflammation, which was predicted by increased waist-to-height ratio and current use of oral contraceptives, attenuated the positive influences of increased weight and muscle mass on bone strength and was inversely associated with radial SSI (R(2) = 0.25, p = 0.018). In conclusion, chronic subclinical inflammation may negatively impact bone physiology in women with PCOS. Strategies focused on reducing abdominal adiposity and avoiding medications that increase inflammation may counter this effect.

Hormonal Agents · Progesterone and Progestins

Progesterone therapy increases free thyroxine levels--data from a randomized placebo-controlled 12-week hot flush trial

Sathi P et al., 2012 Clin Endocrinol (Oxf)

Thyroid hormones and progesterone both influence core temperature, metabolism and are crucial during pregnancy. Our objective was to discover whether progesterone therapy caused changes in thyroid physiology compared with placebo. Post hoc analysis from a randomized (1:1) placebo-controlled 12-week trial of oral micronized progesterone (Progesterone, 300 mg/d at bedtime) for hot flushes (vasomotor symptoms, VMS) conducted in an academic medical centre. Postmenopausal euthyroid, healthy (without cardiovascular diseases or risks) women, 1-11 years since last flow on no thyroid or ovarian hormone therapy with VMS participated. Primary outcomes were final and 12-week changes in TSH, FreeT3 and FreeT4 on progesterone vs placebo. Women with thyroid data (69 of 133 in original trial) were randomized to progesterone (n = 39) or placebo (n = 30)-baseline thyroid values were normal. There were no VMS-thyroid interactions-VMS Score (number × intensity) did not correlate with TSH, FreeT3 or FreeT4 (Spearman's rank correlations: -0.03 to -0.19, respectively; all P > 0.15). At 12 weeks on progesterone, TSH levels tended to be lower (1.7 mU) than on placebo (2.2), P = 0.06; FreeT4 levels were higher (16.4 pmol/l) than on placebo (15.3), P = 0.02. FreeT3 was unchanged throughout. Analysis of covariance showed a significant increase in FreeT4 on progesterone (+2.5 pmol/l; 1.9-3.0) vs on placebo (+1.7; 1.1-2.4) with 95% CI of difference = 0.8 pmol/l [0.0, 1.6], P = 0.04. Progesterone caused a significant FreeT4 increase that was discovered during this randomized controlled VMS trial. The clinical importance of this increased FreeT4 level remains to be documented. Registered at ClinialTrials.gov#NCT00152438.

Ovarian Hormones · Androgens

Acute effects of premenopausal hysterectomy with bilateral oophorectomy on serum lipids, hormonal values, inflammatory markers and metabolism

Kalyan S et al., 2011 Journal of Gynecologic Surgery

The aim of this study was to provide a clinical reference for the acute postoperative changes to lipids and inflammation following premenopausal hysterectomy with bilateral oophorectomy and compare them to normal reference values. The study design was a planned secondary analysis of data from a randomized double-blind trial comparing the effectiveness of two different hormone therapies for preventing post-oophorectomy bone loss and controlling vasomotor symptoms. These data were obtained on hospital discharge before randomization to treatment. Premenopausal women scheduled for a hysterectomy with bilateral oophorectomy for benign reasons were identified from preoperative lists and approached, prior to hospital discharge, to participate in this study. Postoperative data were compared with premenopausal reference intervals using Z scores. Thirty-three (33) women (mean age 45 ± 4.8 years) were studied an average of 7 days postsurgery. Hemoglobin, albumin, testosterone, and high-density lipoprotein values were decreased in comparison to the normal mean, having Z scores of −3.0, −2.5, −2.4, and −1.7, respectively. C-reactive protein levels were quite significantly elevated (Z score = 20.3). The high levels of inflammation and abnormal lipids postsurgical menopause are important considerations for physicians when planning subsequent treatment and care. (J GYNECOL SURG 27:9)

Hormones and Bone · Estrogen and Bone

Bone changes and fracture related to menstrual cycles and ovulation

Kalyan S et al., 2010 Crit Rev Eukaryot Gene Expr

Women's menstrual cycles and bone remodeling are linked in part by their co-dependency on the stressand resource-associated variables that govern both of their cyclical natures. Therefore, it is not surprising that evolution has resulted in the same signaling molecules and pathways that regulate normal ovarian function to be involved in bone remodeling and turnover. This review will first provide an overview of the normal menstrual cycle, its modification by age and ovulatory disturbances, and how it parallels bone remodeling. Epidemiological and clinical evidence will be presented that link bone remodeling, strength, and fractures with women's history of reproductive and menstrual cycle characteristics. This combined evidence will then be presented alongside a synthesis of current concepts derived from basic science investigations focused on understanding the molecular mechanisms underlying the influence of ovarian factors on bone physiology. Osteoporosis is a significant source of morbidity for older women. The data presented in this review suggest that a woman's reproductive cycle and ovulatory characteristics foreshadow the future health of her bones. More importantly, identifying the key mechanisms underlying reproductive and bone health would not only provide essential preventative strategies, but may also uncover attractive targets for the treatment of osteoporosis.

Evaluation of methods and costs associated with recruiting healthy women volunteers to a study of ovulation

Battistella E et al., 2010 J Womens Health (Larchmt)

We address the crucial and challenging task of anticipating the resources needed to recruit eligible participants for research. We provide our analysis of various recruitment strategies and their cost-effectiveness in our experience in enrolling 610 women for an observational study on ovulation. We assess the cost-effectiveness and success of multiple recruitment strategies we employed and provide the estimated cost of labor and materials for each. At enrollment, all participants were asked an open-ended question about how they learned about the study. No financial compensation was provided, but participants received personal hormonal analysis results on completion. Of the 610 enrolled women, 552 provided information on how they learned about the study. The total cost of recruitment was $7645.11, which includes 183 staff hours. The average recruitment cost per participant was $12.53 (ranging from $0 to $118.63). The two methods with the lowest total costs resulted in enrollment of 48% of the recruitment goal using only 0.3% of the budget. In contrast, the two methods with the highest total costs produced 13% of the participants needed but consumed over 72% of the budget. Low-cost methods are a viable, practical source for attracting healthy women for observational research. Investigators are encouraged to track sources of recruitment and analyze their data at regular intervals during the recruitment phase. Sharing comprehensive recruitment data will assist other researchers to better estimate the resources needed to meet their enrollment goal, leading to more efficient use of time and funding.

Hormonal Agents · Progesterone and Progestins

Cardiovascular and metabolic effects of medroxyprogesterone acetate versus conjugated equine estrogen after premenopausal hysterectomy with bilateral ovariectomy

Kalyan S et al., 2010 Pharmacotherapy

To compare the cardiovascular and metabolic effects of medroxyprogesterone acetate (MPA) with those of conjugated equine estrogen (CEE) as single-hormone therapies in women who underwent hysterectomy with bilateral ovariectomy. Secondary analysis of a 12-month, double-blind, randomized, parallel-therapy trial. Four teaching hospitals and one community hospital in Vancouver, Canada. Thirty-three healthy women who underwent premenopausal hysterectomy with bilateral ovariectomy. Subjects received either MPA 10 mg/day (18 women) or CEE 0.6 mg/day (15 women) for 12 months, started immediately after hysterectomy with bilateral ovariectomy. MAIN Lipid profiles (high-density lipoprotein cholesterol [HDL], total cholesterol, apolipoprotein B, and triglyceride levels), homeostatic measures (hemoglobin A(1c) and fasting blood glucose level), hormone levels (free and bioavailable testosterone, cortisol, sex hormone-binding globulin [SHBG], and dehydroepiandrosterone sulfate), inflammatory markers (C-reactive protein [CRP] and serum albumin levels), and anthropometric measures (body mass index [BMI], truncal fat, and total body fat) were assessed over the 12-month period. After 12 months, the women assigned to MPA had lesser increases in BMI (p=0.04), triglyceride (p=0.003), HDL (p<0.0005), SHBG (p<0.0005), total testosterone (p=0.003), and CRP values (p=0.01) and higher serum albumin levels (p<0.0005) compared with the women receiving CEE. Therapy with CEE, but not MPA, after surgical menopause appears to predispose healthy women to low-grade inflammation, as evidenced by its independent associations with elevated CRP and reduced albumin levels. In women treated with MPA, the favorable levels of inflammatory markers, BMI, and triglyceride levels need to be confirmed in larger controlled trials, as progesterone therapy may provide a safe and effective alternative to estrogen for vasomotor symptoms in women with surgical menopause.