scholarly journals A Submaximal Exercise Patterns Intervention on the Plasmatic Leptin Level and Insulin Resistance for Overweight / Obesity Boys Adolescences

Author(s):  
Farzad Nazem ◽  
Salman Lotfi

Objective: Obesity is a medical problem that increases the risk of health problems like diabetes. Hormones secreting from fat tissue, Leptin, are correlated with body mass index. Leptin reduces the personchr('39')s appetite by acting on specific centers of their brain to reduce their urge to eat. And insulin, a hormone produced by the pancreas, is essential for regulating carbohydrates and the metabolism of fat. A positive relationship between leptin levels and insulin resistance in children showing in this study is to determine the effect of continues-endurance and interval-endurance on leptin serum levels and insulin resistance in over-weighted youths. Materials and Methods: This study is a semi-experimental design. Thirty boys were voluntarily selected as a matched two experimental groups and a control. Physical profiles included aged 16-19, BMI; 37.75 (±4.46) KG/M2, base functional capacity: 32.8 (±3.6) ml/kg/min which dividing by three equal groups: the submaximal training interval, a continuum and interval and control group performed the submaximal running program for six weeks on 3 D/W. The selected parameters were evaluated for an intervention pre and post-conditions. Results: weight and body mass index variables were decreased by about 2.5-3% after exercise intervention. Plasmatic leptin levels were reduced by about 45% in the continuum and interval control groups. HOMA-IR & QUICKI indexes altered in the EG (8.9 %, 7.8%) (P-value < 0.05). Conclusion: Presumably, 2 exercise program patterns lower than lactate threshold could change body composition profile, basal leptin level, and blood glucose /insulin concentrations, which probably induced changes in resistance to insulin.

2021 ◽  
Vol 11 (4(42)) ◽  
pp. 28-33
Author(s):  
A. Borshuliak ◽  
O. Andriets ◽  
A. Andriets ◽  
A. Semeniak

Іntroduction. Today, a quarter of the population of economically developed countries has a body weight that is 15% larger than the norm. According to various authors, the timely onset of menarche in women with various forms of obesity and reproductive dysfunction is observed in 31% of cases only. Obesity results in insulin resistance, which in its turn results in hyperinsulinemia. The main reason of the connection of insulin resistance with reproductive function disorders consists in the specific influence of insulin on ovaries. Insulin suppresses apoptosis, binding to receptors of various growth factors that promotes long existence of atresizing follicles. In the pathogenesis of the metabolic syndrome, along with the development of hyperinsulinemia and insulin resistance, a significant role belongs to the imbalance of adipocytokines, one of which is adiponectin. The aim is to analyze metabolic processes in the formation of menstrual dysfunction in adolescent girls with obesity to improve diagnostic methods of menstrual disorders. Material and methods. Clinical and laboratory examination of adolescent girls aged 12-18 years was held, among which 79 had obesity and complaints about menstrual dysfunction (the main group); 31 with normal body weight and regular menstrual cycle (the control group). Research methods: general clinical, biochemical (indicators of lipid and carbohydrate metabolism were determined), instrumental (ultrasound), statistical. Results. It was found that 53.3% of the girls from the main group had the beginning of the first menstruation after 14 years, delayed menstruation from 42 days to 6 days, duration 2.1 ± 0.05 days, which was significantly shorter, the volume of 10.2 ± 0.05; 0.4 points (average 1-2 pads per day) was significantly lower (p <0.05). Ultrasound showed uterine hypoplasia in almost every second girl in the main group - 36 (45.46%). Hyperleptinemia and leptin resistance was found in obesity of the first degree 34.8 ± 1.75, in obesity of the second degree 37.15 ± 2.12, in obesity of the third degree 40.64 ± 2.0. It was 14.35 ng / ml in the control group, p<0,01. Hyperleptinemia in the main group was accompanied by hyperinsulinemia in 26% of cases and insulin resistance. The relationship between low values of adiponectin and elevated body mass index in patients of the main group was established, which was confirmed by the results of correlation analysis (adiponectin & body mass index: ρ = -0.74). Analysis of the results revealed a decrease of A/L level in the main group by 4.3 times. Based on our own results, the A/L and HOMA-AD models can be considered more accurate for determining insulin resistance. Conclusions. 1. Changes of the menstrual cycle in overweight girls were found. The association of adipokines secretion disorders is characterized by hyperleptinemia, leptin resistance, decreased Adiponectin / Leptin index and hypoadiponectinemia, which, in combination with insulin resistance, indicates the participation of adipokines in the genesis of oligomenorrhea. The algorithm of adolescents’ treatment with menstrual dysfunction on the background of obesity must include the calculation of Adiponectin/Leptin and HOMA-AD, which will make it possible to avoid overdiagnosis of insulin resistance.


2018 ◽  
Vol 1 (5) ◽  
Author(s):  
Yuli Zhang ◽  
Songtao Wang ◽  
Fei Liang ◽  
Xiangyu Shuai ◽  
Weibao Liang ◽  
...  

Objective The aim of this study was to investigate the effect of 8-week moderate-intensity and high-intensity accumulated exercise on insulin resistance in mice, compared with the moderate intensity continuous exercise with equal workload, which will provide an experimental reference for seeking a more reasonable and effective exercise program to break sedentary behavior and improve metabolic diseases such as IR. Methods Eighty 4-week-old C57BL/6J mice were randomly divided into normal diet group (group C) and high-fat diet group (group H), fed with different diet. At the 10th weekend, insulin resistance model was judged by OGTT curve (AUC) and fasting blood glucose. All mice with insulin resistance were randomly divided into four groups: IR control group (IC), IR moderate-intensity continuous exercise group (IE), IR moderate-intensity accumulated exercise group (IM), IR high-intensity accumulated exercise group (IH), retained normal diet control group (C), with 12 mice for each group. All groups were fed with normal feed. The three exercise-related group performed an 8-week’s treadmill exercise program with equal workload (involve preparation and relaxation activities,0°platform slope, 5 days/week). For IE group, mice run 50min continuously with the velocity of 11m/min. For IM group,mice exercised 12.5 min per session, total 4 sessions per day, with 3-hour’s interval and the velocity of 11m/min. The IH group performed an alike exercise program with IM group, except the running speed (19m/min) and exercise time (7.5min). On the 8th weekend of exercise, FBG, OCTT, FINS, HOME- IR, and ISI were tested for each groups. Results 1. Compared with group C, body weight, FBG and OGTT-AUC were significantly increased in group H (P<0.05 or P<0.01). 76% mice were induced to insulin resistance successfully.  2. Before and after exercise intervention of 8 weeks, there were no significant changes in body weight and OGTT-AUC, while the FBG was significantly increased in IC group (P<0.05). Body weight, FBG, and OGTT-AUC significantly decreased in IE group, IM group and IH group (P<0.05 or P<0.01). 3. After 8 weeks of exercise intervention, the FBG in the IE group, IM group, and IH group were significantly lower than that in C group (P<0.05 or P<0.01). Compared with the IC group, the FBG, FINS, OGTT-AUC, and HOME-IR in IM group, IH group and IE group were lower than those in the IC group (P<0.05 or P<0.01). Compared with the IE group, the body weight and HOME-IR index of IH group were significantly lower than those in IE group (P<0.01). Compared with IH group, the HOME-IR in IH group was lower than that in IM group (P<0.05); There was no significant difference between IM group and IE group. Conclusions 1. Chronic moderate-intensity continuous exercise, moderate-intensity accumulated exercise, and high-intensity accumulated exercise all can effectively improve the glucose metabolism and insulin resistance in IR mice. 2.Compared with moderate-intensity accumulated exercise and moderate-intensity continuous exercise, the high-intensity accumulated exercise with equal workload is more effective in reducing the body weight and improving insulin resistance in IR mice.  


2020 ◽  
Vol V (III) ◽  
pp. 358-364
Author(s):  
Yassar Iqbal ◽  
Zubia Savila ◽  
Muhammad Badar Habib

This research was designed to evaluate the effect of cardiovascular exercises on body mass index (BMI) and vital capacity (VC) among student aged between 21-27 years (M � SD 22.3� 3.05). The experimental research study was applied to 54 University students of Sargodha. Data were analyzed by using SPSS version 24.0. P-value ? 0.05 was considered significant. The result showed that the average BMI of the control group and experimental groups was 20.73�3.02 vs 21.51�3.21. The effectiveness of cardiovascular exercise on Vital capacity on Pre and post-test of the experimental group was -56.91272 � 22.03192 with a pvalue of 0.000, which was showed there was a highly significant improvement in vital capacity of students and compare with the control group. It was concluded that body masses index and vital capacity is significantly improved in university students of the experimental group as a result of 10 weeks of the cardiovascular exercise training program. Conclude that there is a significant difference between the effects of cardiovascular exercise and daily routine sports activities on BMI.


2009 ◽  
Vol 94 (11) ◽  
pp. 4499-4507 ◽  
Author(s):  
David M. Selva ◽  
Albert Lecube ◽  
Cristina Hernández ◽  
Juan A. Baena ◽  
José M. Fort ◽  
...  

Context: Zinc-α2 glycoprotein (ZAG) has been proposed as a new candidate in the pathogenesis of obesity, but most of the information stems from studies performed in rodents and in vitro assays. Objective: The main aim of the study was to compare serum levels of ZAG and its expression (mRNA levels and protein) in adipose tissue and the liver between obese and nonobese subjects. The relationship between ZAG and insulin resistance was also explored. Design: This was a case-control study. Setting: The study was conducted at a university referral center. Patients and Methods: Samples of serum, sc adipose tissue (SAT), visceral adipose tissue (VAT), and liver were obtained from 20 obese subjects during bariatric surgery. Samples from 10 nonobese patients matched by age and gender were used as a control group. Serum ZAG levels were determined by ELISA. ZAG mRNA levels were measured by real-time PCR and protein content by Western blot. The effect of insulin on liver production of ZAG was assessed using HepG2 cultures. Results: Serum concentration of ZAG (micrograms per milliliter) was significantly lower in obese subjects (40.87 ± 10.45 vs. 63.26 ± 16.40; P = 0.002). ZAG expression was significantly lower in the adipose tissue (SAT and VAT) and liver of obese patients than in control subjects. Significant negative correlations between body mass index and circulating ZAG (r = −0.65, P &lt; 0.001) as well as between body mass index and mRNA ZAG levels in SAT (r = −0.68, P &lt; 0.001) and VAT were detected (r = −0.64, P &lt; 0.001). No relationship was found between ZAG and homeostasis model assessment for insulin resistance and insulin had no effect on ZAG production in vitro. Conclusion: A down-regulation of ZAG in SAT, VAT, and liver exists in obese patients but seems unrelated to insulin resistance. A downregulation of zinc-α2 glycoprotein in adipose tissue and liver exists in obese patients, and it is unrelated to insulin resistance.


2020 ◽  
pp. 1-4
Author(s):  
Omima Tharwat ◽  
Eman H. Bakr ◽  
Hanan M. Ghoneim ◽  
Omima Tharwat

Introduction: Polycystic ovary syndrome is widely prevalent among adolescents and early diagnosis is crucial. While accurate diagnosis is not straightforward, anti-Mullerian hormone was found to be a reliable marker among young patients with polycystic ovary syndrome. However, its serum level was found to be affected by many other variables. This study assessed the relation between serum levels of anti-Mullerian hormone and body mass index in adolescents with polycystic ovary syndrome. Methods: This was a cross sectional analytical study, conducted at the Gynecology and Obstetrics outpatient clinics at Suez Canal University hospitals in Ismailia. It included 100 adolescents with PCOS who fulfilled the revised Rotterdam diagnostic criteria for PCOS, attending secondary stage or higher levels of education in Ismailia, Egypt. The recruited patients were divided into two groups. Group one reported to have BMI ≥ 30 and group two included those who have BMI < 30. Complete history taking, clinical examination (BMI) and biochemical markers including assessment of serum LH and AMH level, and ultrasound assessment to detect ovarian volume, antral follicular count, and presence of ovarian cysts. Results: AMH levels were not affected by BMI in adolescent patients with PCOS (r 0.19, p value 0.185). There were significant correlations between serum AMH and LH level, & between AMH and ovarian morphology among the studied population. The AMH was higher among those with menstrual irregularity and those with hyper-androginism. Accordingly, AMH level is not affected by patients' weight. Conclusion: The AMH was correlated to clinical and biochemical findings of PCOS.


2014 ◽  
Vol 84 (5-6) ◽  
pp. 223-228
Author(s):  
Waled Al-Dubai ◽  
Jameel Al-Ghazaly ◽  
Molham Al-Habori ◽  
Riyadh Saif-Ali ◽  
Ahmed Mohammed

Abstract. Background: Catha edulis (Khat) is customarily chewed to attain a state of stimulation and reduce physical fatigue. In view of the reported common adverse effects of Khat, the aim of this study was to evaluate the levels of iron, ferritin, folic acid, vitamin B12 and body mass index (BMI) as nutritive indicators in Yemeni Khat chewers. Methods: This study was a prospective cohort study, carried out on 90 male workers aged 19 - 23 years old; 45 were healthy non-Khat chewers serving as control group and 45 were regular Khat chewers. Serum iron, ferritin, folic acid, vitamin B12 and body mass index were measured at baseline and after a year of follow up. Results: Serum iron and BMI were significantly (p < 0.01) lower at baseline in Khat chewers by 9 % and 6 %, respectively; whereas ferritin, folic acid and vitamin B12 were non-significantly different from non-Khat chewers. In the follow-up one year later, serum iron, ferritin, vitamin B12 and BMI were significantly (p < 0.001) lower in Khat chewers by 19.0, 31.4, 20.6 and 10.7 %; whereas folic acid was significantly (p = 0.007) higher by 26.7 %. Comparison within groups showed serum iron, ferritin, and BMI to be significantly (p < 0.01) decreased after one year in the Khat chewers with respect to its baseline; whereas folic acid significantly (p < 0.001) increased. Conclusion: This study shows Khat chewers to be more susceptible to malnutrition, which should be considered by the general population and the public health authorities.


2017 ◽  
Vol 28 (1) ◽  
pp. 28-33
Author(s):  
Nahid Yeasmin ◽  
Sayeeda Mahmuda ◽  
Shamima Akther ◽  
Khadija Begum ◽  
Masud Salehin ◽  
...  

Background: Incidence of hypertension in female is increasing throughout the world, leading to life threatening medical problem like cardiovascular diseases, stroke. An association between hypertension and obesity has been identified.Objectives : The study was carried out to observe the association of obesity with hypertension in adult female.Methods : This cross sectional study was conducted in the Department of Physiology, Dhaka Medical College, Dhaka, during the period of January 2011 to December 2011. A total number of one hundred female subjects were selected with age ranging from30 to50 years. Among them 50 hypertensive female subjects were included from out-patient department of Medicine, Dhaka medical college Hospital, Dhaka as study group(B) and 50 apparently healthy female were taken as control group(A) for comparison Waist circumference(WC) was measured and body mass index (BMI) was calculated in both groups. Data was analyzed by Unpaired Student’s ‘t’ test and Pearson’s correlation co-efficient (r) test as applicable.Results: The value of waist circumference was higher in hypertensive subjects than those of nonhypertensive female and result was statistically significant. Body mass index value was significantly (p<0.001) higher in hypertensive subjects in comparison to those of non-hypertensive subjects. In hypertensive subjects waist circumference and body mass index values were higher and showed significant positive correlation with systolic and diastolic blood pressure. Conclusion: Present study revealed that hypertension has positive and significant relationship with waist circumference and body mass index.Bangladesh J Medicine Jan 2017; 28(1) : 28-33


2017 ◽  
Vol 5 (3) ◽  
pp. 271-274 ◽  
Author(s):  
Nelva K. Jusuf ◽  
Imam B. Putra ◽  
Johan Kartayana

BACKGROUND: Skin tag is a benign tumour of the skin with a soft consistency which commonly occurs in the flexure area. Skin tag often found in individuals with middle and old age. Until now, there are many of theories have been proposed to explain the mechanism of the skin tag, one of the theory is obesity.AIM: To determine the body mass index (BMI) in patients with skin tag.METHODS: This study is an analytic study with cross-sectional designs involving 32 subjects with skin tag and 32 controls. Diagnosis of skin tag was made based on anamnesis and clinical examination. All subjects underwent a physical examination (height and weight) to determine BMI (weight in kilogrammes divided by the square of height in meters). To analyse association between higher BMI with the occurrence of skin tag we use student t-test.RESULTS: The mean BMI in the skin tag group (28.1+ 3.9 kg/m^2) was higher compared with the control group (24.1 + 2.3 kg/m^2). Statistical analysis by Student t-test found the p-value < 0.05.CONCLUSION: We found a correlation between increased BMI with the occurrence of the skin tag.


Medicina ◽  
2019 ◽  
Vol 55 (7) ◽  
pp. 379 ◽  
Author(s):  
Fischetti ◽  
Greco ◽  
Cataldi ◽  
Minoia ◽  
Loseto ◽  
...  

Background and objectives: Lymphoma patients experience a psychological and physiological decline that could be reversed by exercise. However, little is known about the effects of the exercise on psychological and physical fitness variables. Therefore, the purpose of this longitudinal study was to assess self-efficacy, fatigue and physical fitness before and after an eight-week exercise intervention. Materials and Methods: Thirty-six participants (54.4 ± 19.1 years) performed a supervised exercise program (~60 min, 2d·wk−1). Each session included a combined progressive training of cardiorespiratory, resistance, flexibility and postural education exercises. Self-efficacy and fatigue were measured with the Regulatory Emotional Self-Efficacy scale and 0–10 rating scale, respectively. Physical fitness was assessed with the body mass index, lower back flexibility, static balance, muscle strength and functional mobility. Results: Adherence to exercise was high (91.2% ± 4.8%) and no major health problems were noted in the patients over the intervention period. At baseline, significant differences were found between Hodgkin’s lymphoma and non-Hodgkin’s lymphoma patients by age and all dependent measures (p < 0.05). Fatigue significantly decreased and the perceived capability to regulate negative affect and to express positive emotions improved after exercise (p < 0.001). Significant improvements were found for body mass index, trunk lateral flexibility, monopodalic balance, isometric handgrip force and functional mobility (p < 0.001). Fatigue was significantly correlated with handgrip force (r = −0.56, p < 0.001) and functional mobility (r = −0.69, p < 0.001). Conclusions: The supervised exercise program improved psychological and physical fitness without causing adverse effects and health problems. Therefore, exercise to improve fitness levels and reduce perceived fatigue should be considered in the management of lymphoma patients.


2008 ◽  
Vol 78 (1) ◽  
pp. 27-32 ◽  
Author(s):  
Suano de Souza ◽  
Silverio Amancio ◽  
Saccardo Sarni ◽  
Sacchi Pitta ◽  
Fernandes ◽  
...  

Objectives: To evaluate the frequency of non-alcoholic fatty liver disease, the retinol serum levels, lipid profile, and insulin resistance in overweight/obese children. To relate these biochemical variables with the risk of this disease in the population studied. Methods: The study was cross-sectional and prospective, with 46 overweight/obese school children (28 female, 18 male; mean age 8.6 years). The control group consisted of 45 children, paired by age and gender. Hepatic steatosis, evaluated by ultrasound, was classified as normal, mild, moderate, or severe. Also evaluated were serum retinol levels; thiobarbituric acid reactive substances; lipid profile; and fasting glucose and serum insulin levels, used for the calculation of the Homeostasis Model Assessment. Results: Hepatic ultrasound alterations were found in 56.5% and 48,9% of the overweight/obese and control group children, respectively. Presence of obesity was associated with high levels of triglycerides (OR = 4.6; P = 0.002). In the studied children, the risk of steatosis was related to a trend to a higher percentage of retinol inadequacy (OR = 2.8; p = 0.051); there was no association with thiobarbituric acid reactive substances, lipid profile, or insulin resistance. Conclusions: The high frequency of non-alcoholic fatty liver disease in both groups, evaluated by hepatic ultrasound, in low-socioeconomic level children, independent of nutritional condition and without significant association with insulin resistance, emphasizes that especially in developing countries, other risk factors such as micronutrient deficiencies (e.g. vitamin A) are involved.


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