Aim: To investigate serum and follicular fluid (FF) leptin levels in normally-ovulating women and subjects with polycystic ovary syndrome (PCOS) undergoing controlled ovarian stimulation and correlate them with their lipid lipoprotein profile.
Materials And Methods: We included 70 PCOS women (35 lean and 35 overweight or obese) and 76 age- and weight-matched non-PCOS controls (39 lean and 37 overweight or obese).
Results: Serum levels of total cholesterol, low-density lipoprotein (LDL) cholesterol, triglycerides, apolipoprotein B, lipoprotein(a) and homocysteine in women with PCOS were significantly higher compared to control groups while levels of high-density lipoprotein (HDL) cholesterol and apolipoprotein A1 were significantly lower. Serum leptin levels did not differ between groups and were lower than FF levels. Serum and FF leptin levels were positively correlated and were significantly decreased when apolipoprotein B levels increased.
Conclusion: PCOS women exhibit lipid metabolism abnormalities putting them at increased risk of developing early atherosclerosis.
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Physiol Behav
January 2025
Department of Biomedical Sciences, Joan C Edwards School of Medicine at Marshall University, 1700 3(rd) Avenue, Huntington, WV 25703, USA. Electronic address:
With the rise in fast-food culture and the continued high numbers of tobacco-related deaths, there has been a great deal of interest in understanding the relationship between high-fat diet (HFD) and nicotine use behaviors. Using adult mice and a patch-clamp electrophysiology assay, we investigated the influence of HFD on the excitability of ventral tegmental area (VTA) dopamine neurons and pyramidal neurons in the medial prefrontal cortex (mPFC) given their role in modulating the reinforcing effects of nicotine and natural rewards. We then examined whether HFD-induced changes in peripheral markers were associated with nicotine use behaviors.
View Article and Find Full Text PDFBackground: Childhood obesity and the rate of its spread is a serious threat to the reproductive health of the nation, especially among boys, being a background for delaying sexual development and further disrupting fertility.
Aim: To study the peculiarities of the ratio of the level of leptin and a number of toxic and essential chemical trace elements in biological environments in adolescent boys aged 13-14 years with obesity and delayed sexual development.
Materials And Methods: Three groups of adolescents aged 13-14 years were studied and formed: the main ones - with constitutional exogenous obesity of 1-2 degrees (1-20 boys without secondary signs of puberty; 2 - 24 boys with 2-4 stages of puberty according to Tanner) and comparisons (3 - 15 boys with normal body weight and without deviations in puberty).
J Clin Med Res
January 2025
Department of Physiology, Faculty of Science, University of Karachi, Karachi, Pakistan.
Background: Association of serum vitamin D (vitD) with leptin (Lep) and tumor necrosis factor-alpha (TNF-α) is not precisely known in overweight hypertensive (OW-HT) postmenopausal (PMP) women. Hence, the present study was carried out to investigate the body mass index (BMI)-based correlation of serum vitD with Lep and TNF-α in OW-HT PMP women.
Methods: Women subjects in their early PMP (n = 346, age: 51 - 60 years) categorized into three groups had main inclusion criteria of specified range of age, BMI and blood pressure (BP).
Stem Cell Res Ther
January 2025
Department of Medicine, Veterans Affairs Medical Center, Washington, DC, USA.
Introduction: Effects of Dapagliflozin (Dapa) and Dapagliflozin-Saxagliptin combination (Combo) was examined on peripheral blood derived CD34 + Hematopoetic Stem Cells (HSCs) as a cellular CVD biomarker. Both Dapa (a sodium-glucose co-transporter 2 or SGLT2, receptor inhibitor) and Saxagliptin (a Di-peptydl-peptidase-4 or DPP4 enzyme inhibitor) are commonly used type 2 diabetes mellitus or T2DM medications, however the benefit of using the combination has not been evaluated for cardio-renal risk assessment, in a real-life practice setting, compared to a placebo.
Hypothesis: We hypothesized that Dapa will improve the outcomes when compared to placebo and the Combo maybe even more beneficial.
J Clin Med
January 2025
Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias, 11527 Goudi, Greece.
Glucose metabolism and hormonal responses are largely affected by exercise intensity, which exhibits an alternating pattern in many sports activities. The aim of this study was to investigate and compare glycemic and hormonal responses during and after exercise of constant (CON) and alternating (ALT) intensity with the same duration and total work. Ten healthy male volunteers performed two, 60 min cycling exercise bouts in random order: the ALT bout, where exercise intensity alternated between 46.
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