Short-Term Aerobic Exercise Did Not Change Telomere Length While It Reduced Testosterone Levels and Obesity Indexes in PCOS: A Randomized Controlled Clinical Trial Study.

Metabolic and hormonal outcomes of polycystic ovary syndrome (PCOS) have implications on telomere biology and physical activity may prevent telomere erosion. We sought to observe the effects of continuous (CAT) and intermittent (IAT) aerobic training on telomere length, inflammatory biomarkers, and its correlation with metabolic, hormonal, and anthropometric parameters of PCOS. This randomized controlled clinical trial study included 87 PCOS randomly stratified according to body mass index (BMI) in CAT (n = 28), IAT (n = 29) and non-training control group (CG, n = 30). The exercises were carried out on a treadmill, three times per week for 16 weeks. The participants' anthropometric characteristics and biochemical and hormonal concentrations were measured before and after aerobic training or observation period, as the telomere length that was evaluated using quantitative real-time PCR. Four months of aerobic exercises (CAT or IAT) did not alter telomere length and inflammatory biomarkers in PCOS women. Obesity index as BMI and waist circumference (WC), and inflammatory biomarkers negatively affect telomeres. The hyper-andro-genism measured by testosterone levels was reduced after both exercises (CAT, p ≤ 0.001; IAT, p = 0.019). In particular, the CAT reduced WC (p = 0.045), hip circumference (p = 0.032), serum cholesterol (p ≤ 0.001), and low-density lipoprotein (p = 0.030). Whereas, the IAT decreased WC (p = 0.014), waist-to-hip ratio (p = 0.012), free androgen index (FAI) (p = 0.037). WC (p = 0.049) and body fat (p = 0.015) increased in the non-training group while total cholesterol was reduced (p = 0.010). Booth exercises reduced obesity indices and hyperandrogenism on PCOS women without changes in telomere length or inflammatory biomarkers.

Effects of continuous and intermittent aerobic physical training on hormonal and metabolic profile, and body composition in women with polycystic ovary syndrome: A randomized controlled trial.

OBJECTIVE: To evaluate the effects of continuous (CA) and intermittent (IA) aerobic training on hormonal and metabolic parameters and body composition of women with polycystic ovary syndrome (PCOS). DESIGN: Prospective, interventional, randomized study. METHODS: Randomized controlled training (RCT) with sample allocation and stratification into three groups: CAT (n = 28) and IAT (n = 29) training and no training [control (CG), n = 30]. Before and after 16 weeks of intervention (CAT or IAT) or observation (CG), hormonal and metabolic parameters, body composition and anthropometric indices were evaluated. Aerobic physical training on a treadmill consisted of 30- to 50-minute sessions with intensities ranging from 60% to 90% of the maximum heart rate. RESULTS: In the CA group, there was reduction in waist circumference (WC) (P = .045), hip circumference (P = .032), cholesterol (P ≤ .001), low-density lipoprotein (P = .030) and testosterone (P ≤ .001). In the IAT group, there was a reduction in WC (P = .014), waist-to-hip ratio (P = .012), testosterone (P = .019) and the free androgen index (FAI) (P = .037). The CG showed increases in WC (P = .049), total body mass (P = .015), body fat percentage (P = .034), total mass of the arms (P ≤ .001), trunk fat percentage (P = .033), leg fat percentage (P = .021) and total gynoid mass (P = .011). CONCLUSION: CAT and IAT training reduced anthropometric indices and hyperandrogenism in PCOS, whereas only IAT training reduced the FAI. Furthermore, only CAT training improved the lipid profile.

Association of measures of central fat accumulation indices with body fat distribution and metabolic, hormonal, and inflammatory parameters in women with polycystic ovary syndrome.

OBJECTIVE: To investigate the associations among visceral adiposity index (VAI), lipid accumulation product (LAP), body fat percentage (%), and android/gynoid ratio (A/G ratio) in women with polycystic ovary syndrome (PCOS) and verify if the parameters representative of visceral obesity correlate with and exhibit the same frequency as body composition variables; anthropometric indices; and metabolic, hormonal, and inflammatory parameters. SUBJECTS AND METHODS: This was a cross-sectional study that included 94 women with PCOS. Hormonal, metabolic, and inflammatory parameters were analyzed in all women. Free androgen index (FAI) and homeostasis model assessment (HOMA-IR), as well as LAP, VAI, and anthropometric indices, were calculated. The regions of interest (ROIs) in body composition and body composition indices were evaluated using a dual X-ray absorptiometry (DXA). Overall, 32 variables were selected as markers of body fat distribution. RESULTS: Among the 32 markers evaluated, 29 correlated with LAP, whereas 25 correlated with VAI, 19 with body fat (%), and 30 with A/G ratio. Additionally, some markers correlated with the four adiposity indices evaluated: ROIs, except for total mass and leg fat (%); body composition (body mass index, waist circumference, and hip circumference) indices; fasting insulin; and C-reactive protein. CONCLUSION: LAP and VAI may be sensitive measures for screening and preventing metabolic syndrome and insulin resistance in PCOS, with LAP being more sensitive than VAI, and the A/G ratio may be more sensitive than body fat percentage.

Association of measures of central fat accumulation indices with body fat distribution and metabolic, hormonal, and inflammatory parameters in women with polycystic ovary syndrome

ABSTRACT Objective To investigate the associations among visceral adiposity index (VAI), lipid accumulation product (LAP), body fat percentage (%), and android/gynoid ratio (A/G ratio) in women with polycystic ovary syndrome (PCOS) and verify if the parameters representative of visceral obesity correlate with and exhibit the same frequency as body composition variables; anthropometric indices; and metabolic, hormonal, and inflammatory parameters. Subjects and methods This was a cross-sectional study that included 94 women with PCOS. Hormonal, metabolic, and inflammatory parameters were analyzed in all women. Free androgen index (FAI) and homeostasis model assessment (HOMA-IR), as well as LAP, VAI, and anthropometric indices, were calculated. The regions of interest (ROIs) in body composition and body composition indices were evaluated using a dual X-ray absorptiometry (DXA). Overall, 32 variables were selected as markers of body fat distribution. Results Among the 32 markers evaluated, 29 correlated with LAP, whereas 25 correlated with VAI, 19 with body fat (%), and 30 with A/G ratio. Additionally, some markers correlated with the four adiposity indices evaluated: ROIs, except for total mass and leg fat (%); body composition (body mass index, waist circumference, and hip circumference) indices; fasting insulin; and C-reactive protein. Conclusion LAP and VAI may be sensitive measures for screening and preventing metabolic syndrome and insulin resistance in PCOS, with LAP being more sensitive than VAI, and the A/G ratio may be more sensitive than body fat percentage.

The relationship among sperm global DNA methylation, telomere length, and DNA fragmentation in varicocele: a cross-sectional study of 20 cases.

Varicocele pathophysiology is related to increased oxidative stress, which might result in loss sperm DNA integrity as well as in genomic instability. Sperm telomere shortening and loss of global DNA methylation are the main features of genomic instability, leading to cell senescence and death, whereas sperm DNA fragmentation (SDF) characterizes the loss of chromatin integrity. We hypothesize that sperm genomic stability and DNA integrity is reduced in infertile men with moderate and large-sized varicoceles, thus being candidate markers of sperm quality in varicocele-related infertility. Here, we assessed the sperm global DNA methylation, telomere length, and SDF in men with and without clinically palpable varicoceles. While the rates of SDF and telomere length were not statistically different between varicocele patients and controls, global sperm DNA methylation seems to be lower in men with varicocele (49.7% ± 20.7%) than controls (64.7% ± 17.1%). A negative correlation between SDF and sperm motility and a positive correlation between sperm morphology and telomere length were observed. Our results suggest that varicocele may result in genomic instability, in particular, global DNA hypomethylation. However, a large sample size may confirm these findings. The understanding of the molecular mechanisms involved in the pathophysiology of varicocele-related infertility may help to better select candidates for varicocele repair.

Inflammatory biomarkers and telomere length in women with polycystic ovary syndrome.

OBJECTIVE: To analyze whether leukocyte telomere length (LTL) is impaired in women with polycystic ovary syndrome (PCOS). DESIGN: Case-control study. SETTING: Hospital. PATIENT(S): A total of 274 women, including 150 patients with PCOS and 124 controls. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Body mass index (BMI), waist circumference, systemic arterial pressure, lipid profile, E(2), LH, T, androstenedione, PRL, TSH, sex hormone-binding globulin, C-reactive protein (CRP), homocysteine, free androgen index, and the homeostatic model of insulin sensitivity (HOMA-IR) index were analyzed. The LTL evaluation was measured by quantitative polymerase chain reaction. RESULT(S): The PCOS group had higher values for weight, BMI, waist circumference, systolic arterial pressure, triglycerides, LH, T, insulin, CRP, free androgen index, and HOMA-IR compared with the control group. Sex hormone-binding globulin and E(2) levels were lower in the PCOS group than in the control group. The LTL did not differ between groups. Age, BMI, and HOMA-IR had no significant effect on LTL. The inflammatory biomarkers CRP and homocysteine were negatively correlated with LTL in patients with PCOS. CONCLUSION(S): Our results showed no differences in LTL between patients with PCOS and controls, but CRP and homocysteine biomarkers negatively correlated with LTL in the PCOS group.

[Frequency and risk factors for metabolic syndrome in adolescents and adults women with polycystic ovary syndrome]. / Frequência e fatores de risco para síndrome metabólica em mulheres adolescentes e adultas com síndrome dos ovários policísticos.

PURPOSE: To compare the frequency of metabolic syndrome (MetS) and the risk factors associated with this syndrome in women from the Brazilian Southeast with polycystic ovary syndrome (POS) evaluated during adolescence and adult age. METHODS: This was a cross-sectional study conducted on 147 patients with a diagnosis of POS who were divided into two groups: Adolescents, 42 adolescents aged 13 to 19 years, and Adults, 105 women aged 20 to 40 years. The following factors were evaluated: clinical characteristics (body mass index - BMI, Ferriman index, abdominal circumference - AC, and systemic arterial pressure), mean ovarian volume, laboratory variables (serum androgen profile, lipid profile, glycemia, and fasting insulin), and frequency of MetS. The results were expressed as mean±standard deviation. We used multiple logistic regression with the response variable being the presence of MetS and the predictor variables the levels of total testosterone, insulin and BMI. RESULTS: The frequency of MetS was approximately twice higher in the group of adult women compared to the adolescents with POS (Adolescents: 23.8 vs. Adults: 42.9%, p=0.04). Among the defining criteria of MetS, only the qualitative variable of systemic arterial pressure ≥130/85 mmHg was more frequent among the adult women (p=0,01). The BMI was an independent predictor of MetS among the adolescent (p=0.03) and adult women (p<0.01) with POS. Serum insulin level was a predictor of MetS only among adult women with POS (p<0.01). AC was greater among adult women (p=0.04). CONCLUSION: Adult women with POS have a twice higher frequency of MetS than adolescents with POS from the Brazilian Southeast. Although the BMI is associated with the development of MetS in any phase of life in women with POS, serum insulin level was an independent predictor of MetS only among adult women with this disorder.

Frequência e fatores de risco para síndrome metabólica em mulheres adolescentes e adultas com síndrome dos ovários policísticos / Frequency and risk factors for metabolic syndrome in adolescents and adults women with polycystic ovary syndrome

OBJETIVOS: Comparar a frequência de síndrome metabólica (SMet) e dos fatores de risco para esta síndrome em mulheres adultas e adolescentes do sudeste brasileiro com síndrome dos ovários policísticos (SOP). MÉTODOS: Estudo transversal, realizado com 147 pacientes que apresentavam diagnóstico de SOP e que foram divididas em dois grupos: Adolescência, constituído por 42 adolescentes com 13 a 19 anos e Adultas, composto por 105 mulheres com idade entre 20 e 40 anos. Foram avaliadas características clínicas (índice de massa corporal - IMC, índice de Ferriman, circunferência abdominal - CA e pressão arterial sistêmica), o volume ovariano médio, variáveis laboratoriais (perfil androgênico sérico, lipidograma, glicemia e insulina de jejum) e frequência da SMet. Os resultados foram expressos em média±desvio padrão. Utilizou-se regressão logística múltipla tendo como variável resposta a presença de SMet e como variáveis preditoras para SMet os níveis de testosterona total, insulina e IMC. RESULTADOS: A frequência de SMet foi aproximadamente duas vezes maior no grupo de mulheres adultas em relação às adolescentes com SOP (Adolescência: 23,8 versus Adultas: 42,9%, p=0,04). Entre os critérios definidores da SMet, apenas a variável qualitativa da pressão arterial sistêmica ≥130/85 mmHg foi mais frequente nas adultas (p=0,01). O IMC foi preditor independente para SMet em mulheres adolescentes (p=0,03) e adultas (p<0,01) com SOP; o nível sérico de insulina foi preditor para SMet apenas para o grupo de mulheres com SOP adultas (p<0,01). A média das CA foi maior nas mulheres de idade adulta (p=0,04). CONCLUSÃO: Mulheres com SOP adultas apresentam frequência de SMet duas vezes maior do que adolescentes com SOP do sudeste brasileiro. Embora o IMC esteja associado com a SMet em qualquer fase da vida da mulher com SOP, o nível sérico de insulina foi preditor independente apenas da SMet em pacientes com esse distúrbio na idade adulta.

PURPOSE: To compare the frequency of metabolic syndrome (MetS) and the risk factors associated with this syndrome in women from the Brazilian Southeast with polycystic ovary syndrome (POS) evaluated during adolescence and adult age. METHODS: This was a cross-sectional study conducted on 147 patients with a diagnosis of POS who were divided into two groups: Adolescents, 42 adolescents aged 13 to 19 years, and Adults, 105 women aged 20 to 40 years. The following factors were evaluated: clinical characteristics (body mass index - BMI, Ferriman index, abdominal circumference - AC, and systemic arterial pressure), mean ovarian volume, laboratory variables (serum androgen profile, lipid profile, glycemia, and fasting insulin), and frequency of MetS. The results were expressed as mean±standard deviation. We used multiple logistic regression with the response variable being the presence of MetS and the predictor variables the levels of total testosterone, insulin and BMI. RESULTS: The frequency of MetS was approximately twice higher in the group of adult women compared to the adolescents with POS (Adolescents: 23.8 vs. Adults: 42.9%, p=0.04). Among the defining criteria of MetS, only the qualitative variable of systemic arterial pressure ≥130/85 mmHg was more frequent among the adult women (p=0,01). The BMI was an independent predictor of MetS among the adolescent (p=0.03) and adult women (p<0.01) with POS. Serum insulin level was a predictor of MetS only among adult women with POS (p<0.01). AC was greater among adult women (p=0.04). CONCLUSION: Adult women with POS have a twice higher frequency of MetS than adolescents with POS from the Brazilian Southeast. Although the BMI is associated with the development of MetS in any phase of life in women with POS, serum insulin level was an independent predictor of MetS only among adult women with this disorder.