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Aug 2017 DOI 10.14302/issn.3070-2313.jeh-17-1552
Elisha BelindaCorresponding author
Department of Nutrition, Université de Montréal, Montreal, Quebec, Canada
Introduction. Obesity often coexists with insulin resistance, which is related to cardiometabolic risk. However, some obese individuals exhibit comparable insulin sensitivity (IS) to that of normal-weight subjects, a state associated with a reduced cardiometabolic risk. We aimed to determine the efficacy of a panel of surrogate markers of insulin sensitivity (IS) for the identification of insulin sensitive obese (ISO) vs. insulin resistant obese (IRO) with similar total fat mass (FM) and body mass index (BMI). Methods. This is a cross-sectional analysis among 144 overweight and obese post-menopausal women. IS was determined by the hyperinsulinemic-euglycemic clamp (HEC) and by surrogate indices such as Matsuda index, the simple index assessing insulin sensitivity using oral glucose tolerance test (SIisOGTT), Abdul-Ghani liver IS index, HOMA-IR and Abdul-Ghani muscle IR index. Results. When using upper and lower quartiles values or the median as cut-off for IS determined by the reference HEC to define ISO vs. IRO, Matsuda index, SIisOGTT and Abdul-Ghani indices classification identified ISO vs. IRO individuals with similar FM and BMI. With HOMA-IR, the two groups were similar for FM and had borderline significant difference in BMI. Using, receiver operating characteristic curves, Matsuda index AUC was similar to that of SIisOGTT and both indices AUCs were significantly higher than Abdul-Ghani indices AUCs. The best cut-off value for the Matsuda index was 2.5 (83.1% specificity, 54.2% sensitivity) and 0.25 for SIisOGTT (64.8% specificity, 70.8% sensitivity). Conclusion. Whole body IS indices, Matsuda and SIisOGTT indices seem to be reliable indices for the identification of ISO vs. IRO individuals.
Jul 2017 DOI 10.14302/issn.2379-7835.ijn-17-1636
R. Holt PeterCorresponding author
The Rockefeller University
Adipose tissue inflammation is associated with obesity comorbidities. Reducing such inflammation may ameliorate these comorbidities. n-3 fatty acids have been reported to have anti-inflammatory properties in obesity, which may modulate this inflammatory state. In the current study a 1 gram per day oral supplement of the n-3 fatty acid docosahexaenoic acid (DHA) was administered for 12 weeks to 10 grade 12 obese postmenopausal women and markers of adipose tissue and systemic inflammation measured and compared before and after supplementation. DHA administration resulted in approximately a doubling of plasma and red cell phospholipid and adipose tissue DHA content but no change in systemic markers of inflammation, such as circulating C-reactive protein (CRP) or interleukins (IL) 6, 8 and 10 (IL-6, IL-8, IL-10). DHA supplementation did not alter the adipose tissue marker of inflammation crown-like structure density nor did it affect any gene expression pathways, including anti-inflammatory, hypoxic and lipid metabolism pathways. The obese postmenopausal women studied were otherwise healthy, which leads us to suggest that in such women DHA supplementation is not an effective means for reducing adipose tissue or systemic inflammation. Further testing is warranted to determine if n-3 fatty acids may ameliorate inflammation in other, perhaps less healthy, populations of obese individuals.
Jan 2017 DOI 10.14302/issn.2379-7835.ijn-16-1411
Saleh FarzanaCorresponding author
Department of Community Nutrition, Bangladesh University of Health Sciences, Dhaka, Bangladesh
Background: Isoflavones are phytoestrogens present in natural sources, and they resemble estradiol in structure and manner of action. The aim of the study was to assess the effects of soy-milk on serum tHcy levels and to assess the glycemic and lipidemic status of Bangladeshi postmenopausal women. Methods: Thirty-six women (aged 50 ±5.16 years, M ±SD) participated in a randomized, un-blinded, open-ended, crossover study design for 52 days. The soy-milk group consumed 350 mL of milk twice a day for 21- day; the milk contained ~30 mg of isoflavones. FBG, PPG, HbA1c, TC, TG, HDL-C, NEFA, and tHcy were measured on day 0, day 21, day 31, and day 52 with a 10- day washout period. Results: After the consumption of soy-milk, the level of HDL-C significantly (p=0.005) increased on day 21 in the subjects. No significant changes were observed between the groups. After crossover, significant changes in FBG (p=0.005) and TG (p=0.049) were observed on day 52 in the soy-milk group. Significant improvement in TG (p=0.001) and HDL-C (p=0.032) was also seen at the end-point. Conclusions: Soy isoflavones is to some extent favorable to reduce CVD risk factors among Bangladeshi postmenopausal women.
Apr 2019 DOI 10.14302/issn.2379-7835.ijn-19-2579
Ghayour-Mobarhan MajidCorresponding author
Metabolic Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Objective Postmenopausal women are at an increased risk of Cardiovascular Disease. We aimed to investigate whether this risk differed between individuals with a naturally occurring and other reasons for menopause within a large population-based Iranian sample. Study Design A total number of 1763 postmenopausal women (defined by amenorrhea for more than a year, or FSH > 30-40 mIU/ml), 900 of them with a natural menopause and 863 of them with other reasons for menopause caused by (hysterectomy without oophorectomy or one side oophorectomy, hysterectomy with oophorectomy or two side oophorectomy without hysterectomy) were recruited as part of the Mashhad Stroke and Heart Atherosclerotic Disorders (MASHAD) cohort study. Biochemical and hematological risk factors were measured in all the subjects and the data were analyzed by SPSS software version 20 Results There was a significant difference in the presence of cardiovascular disease in the natural menopause group compared with other reasons for menopause group (p<0.05). There was also a meaningful difference between the prevalence of depression and anxiety in the natural menopause individuals compared with other reasons for menopause group (p<0.05). Discussion High prevalence of CVD, depression and anxiety in other reasons in menopause women were observed among Mashhad urban females. It should be considered as a noticeable message. Furthermore, studies are necessary to determine different parameters between evaluating CVD, depression and anxiety among menopauses women.