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Query: UMLS:C0028754 (obesity)
 124,988 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A 32-year-old, hypertensive, morbidly obese (BMI 49 kg/m2) woman was referred to us suspected of sleep-disordered breathing. Polycythaemia, right heart and respiratory failure, restrictive ventilatory impairment, decreased hypercapnic respiratory drive, high number of very short apneas mostly of central origin (698 vs 530 obstructive), and overnight hypoxaemia were found. The diagnosis of obesity-hypoventilation syndrome was established and the treatment with almitrine, aminophylline and low-calorie diet was started. After 6 months body weight decreased significantly (BMI 38 kg/m2). RBC, spirometry, blood gas analysis, overnight oximetry, hypercapnic respiratory drive and polysomnography showed results within normal limits. Causes, pathophysiology and possible treatment of obesity-hypoventilation syndrome are discussed.
Pneumonol Alergol Pol 1996
PMID:[Obesity and hypoventilation syndrome; effects of weight loss and treatment with respiratory stimulants]. 899 66

The aim of the study was to evaluate the thrombosis free survival in unrelated 24 heterozygous carriers for Leiden mutation and in unrelated 26 patients with "idiopathic" thromboembolic disease. The subjects with coexisting antithrombin III, protein C, S deficiency, obesity, antiphospholipid antibodies, cancer or taking oral contraceptives were excluded from analysis. The clinical manifestations of thrombosis were comparable in both investigated group, similarly the mean age of the first episode occurrence (37.2 vs 41.5 years). The probability for development of thrombosis in Kaplan-Meier analysis was not different between two groups. Moreover, during six months of observation period thrombosis reoccurrence rate was similar (1/24 vs 1/26).
Pol Arch Med Wewn 1996 Oct
PMID:[Similar risk of thrombosis complications in heterozygous carriers of Leiden mutation and in patients with idiopathic thromboembolic disease]. 908 42

Chemotaxis, spontaneous migration, phagocytosis, expression of the receptors of Fc Ig fragments and of C3 component of complement has been examined in blood of 51 patients with obesity divided into 3 groups with: 1. disturbances in carbohydrate and lipid metabolism, 2. disturbance in lipid metabolism, 3. no symptoms of metabolic diseases and 20 healthy controls. A comparison of the characteristics of neutral granulocytes in the blood of the healthy controls before and after fat rich meal has been performed. Obtained results indicate that high concentration of lipids, decrease granulocyte activity therefore could be the cause of the decrease of immunological defence.
Pol Tyg Lek 1996 May
PMID:[Examination of human neutrophil activation in hyperlipidemia]. 928 6

The authors have studied chemical control of breathing in 37 normocapnic patients with OSA. These patients had increased apnea-hypopnea index (AHI = 51 +/- 22), obesity (BMI = 32.4 +/- 5.6 kg/m2) and normal lung function tests. Control group consisted of 20 healthy subjects with normal weight (BMI = 23.1 +/- 2.4 kg/m2). Respiratory responses (ventilatory and P0.1) to hypercapnic and hypoxic stimulation during rebreathing tests were measured with computerized methods. The obtained results in OSA patients were compared with the data of the control group. The results exceeding mean values of the control group above 1.64 SD were recognized as hyperreactive responses. The majority e.g. 26 patients (OSA-N) had normal respiratory responses during hypercapnic stimulation. delta V/delta PCO2 = 16.8 +/- 4.5 L/min/kPa, P0.1/delta PCO2 = 3.5 +/- 2.4 cm H2O/kPa/. In remaining 11 patients (OSA-H) respiratory responses were significantly increased delta V/delta PCO2 = 39.1 +/- 18.8 L/min/kPa, P0.1/delta PCO2 = 8.6 +/- 3.9 cm H20/kPa). During isocapnic hypoxic stimulation majority e.g. 25 patients (OSA-H) had significantly increased respiratory responses delta V/delta SaO2 = 3.28 +/- 1.63 L/min/%, delta P0.1/delta SaO2 = 0.54 +/- 0.43 cm H2O/%/. In remaining 12 patients (OSA-N) respiratory responses were within normal limits delta V/SaO2 = 1.2 +/- 0.28 L/min/%, delta P0.1/ delta SaO2 = 0.21 +/- 0.07 cm H2O/%/. The above results indicated, that majority OSA patients (67.5%) had increased ventilatory and P0.1 responses to hypoxic stimulation. Among them also 11 patients had increased respiratory responses to hypercapnia. It seems, that increased respiratory responses to hypoxic stimulus in OSA patients are symptoms of protective reaction to hypoxaemia occurring during repetitive sleep apnoea and reveals increased neuro-muscular output.
Pneumonol Alergol Pol 1997
PMID:[Chemical control of breathing in patients with obstructive sleep apnea]. 941 Feb 80

What is the signal between the metabolic state and reproductive function--it is one of the scientific puzzles in gynecological endocrinology. Previously it was suggested that such substances as insulin, amino acids, IGFBP-I may play a role as a metabolic signal. Leptin a newly discovered hormonal product of obesity (ob) gene is expressed by adipocytes and thought to play a role in the regulation of food intake, metabolism and reproduction. In this article some informations about leptin secretion, its regulation and localization of leptin receptors have been presented. Particular attention to leptin influence on GnRH secretion have been paid. Probably on the base of this mechanism leptin acts as a link between metabolic state and reproductive system. Some data about leptin secretion in obesity, weight loss related amenorrhoea and anorexia nervosa have been discussed. The putative role of leptin in the pathophysiology of polycystic ovary syndrome and initiation of puberty also have been analyzed.
Ginekol Pol 1997 Dec
PMID:[Leptin--missing link between the metabolic state and the reproductive system?]. 968 74

The assessment is presented of 160 patients with ischaemic stroke from the point of view of gender, selected risk factors, incidence of internal carotid thrombosis (ICT) and age. The material was divided into three age groups: up to 49 years, 50-69 years and 70 years and above. A significant prevalence of men was noted in both younger age groups. With progressing age atrial fibrillation was found significantly more frequently while the number of patients with ICT was decreasing. Similarly, the number of smokers and patients with raised hematocrit value was decreasing. The most frequent risk factor for ischaemic was hypertension. Obesity and diabetes were not significantly changing in relation to age in their prevalence in this material.
Neurol Neurochir Pol
PMID:[Analysis of risk factors in age-related cerebral ischemia]. 977 Jun 86

The purpose of the study was to analyse bone density in patients with noninsulin-dependent diabetes mellitus with respect to such factors as the magnitude of obesity, serum cortisol concentration and 17-ketosteroid excretion and insulinemia level. Bone density was measured by ultrasonography, insulin was determined by radioimmunoassay, and steroid level by using the method of Zimmerman. The patients had imminent and overt osteoporosis. The highest serum cortisol concentration was in groups with lower T-score significant negative correlation between cortisol and SOS index. The lowest 17-ketosteroid level was detected in the patients with the lowest T-score; a significant correlation was observed between 17-ketosteroids and BUA index. The present findings indicate an imbalance between bone protective and resorptive factors. This leads to osteopenia in patients with noninsulin-dependent diabetes mellitus despite a protective effect of obesity.
Pol Arch Med Wewn 1998 Aug
PMID:[Bone density in type 2 diabetes as related to obesity and adrenal function]. 1010 27

The aim of our study was to estimate selected parameters of hemostasis and fibrinolysis in diabetic patients with vascular complications and obesity. The investigation was carried out in 23 type 1 diabetic subjects aged 17-56 ys, in 25 type 2 diabetic patients aged 41-69 ys and in 38 healthy persons: 16 "young"--aged 32.5 +/- 13.2 ys and 22 "old"--aged 56.2 +/- 9.4 ys. The following parameters were determined: glycaemia, HbA1c, blood level fibrinogen, euglobulin clot lysis time, plasminogen activator inhibitor (PAI-1) activity, microalbuminuria, triglyceride, total, HDL- and LDL-cholesterol concentration. Plasma fibrinogen level was elevated in type 2 diabetic subjects, and the highest concentrations were noted in patients with retinopathy or arterial hypertension, in overweight persons and--surprisingly--in type 1 diabetic subjects with nephropathy and coronary vascular disease (CVD). There were also positive correlations between fibrinogen level and systolic blood pressure (r = 0.3413, p < 0.02), diastolic blood pressure (r = 0.3809, p < 0.002) and microalbuminuria (r = 0.3552, p < 0.05). The mean euglobulin clot lysis time was prolonged in type II diabetics in comparison to the control group, especially in obese subjects. The highest activity of PAI-1 was found in overweight controls (28.87 +/- 6.24 Au/ml, p < 0.002). PAI-1 activity was also slightly increased in type 1 diabetic patients, especially with the symptoms of diabetic neuropathy, nephropathy or CHD, in comparison to the other groups. Our results seem to confirm the disturbed balance between coagulation and fibrinolysis--towards and increased risk of a prothrombotic state --in both--obese and diabetic patients--especially with advanced vascular complications.
Pol Arch Med Wewn 1998 Aug
PMID:[Some parameters of hemostasis and fibrinolysis in diabetic patients]. 1010 28

Twenty-three boys and 30 girls with simple obesity aged 12-16 years were investigated. The values of insulin, C-peptide, glycaemia, gastrinaemia and pancreatic polipeptide (PP) were measured in a fasting state and 30 and 60 min. after meal--at the beginning and after 3 weeks of reductive diet and physical exercise. The study of growth hormone and somatomedin C was deemed relevant to the issue in hand. Considerably higher insulinaemia and C-peptidemia values accompanied by impaired metabolic clearance of insulin and lowered glucose utilization in children with significant accumulation of adipose tissue in the abdominal area (waist/hip ratio p > 0.95), may constitute a possible predictor for diet-controlled diabetes mellitus and cardiovascular system diseases in adult age. Evaluation of adipose tissue in obese children makes it easier to indicate subjects exposed to complications at a later age. Low-caloric diet and physical exercise bring about a decrease in insulin secretion and an increase in its metabolic clearance. At the same time, glucose assimilation by cells is intensified.
Mater Med Pol
PMID:Adipose tissue distribution and behaviour of selected gastro-entero-pancreatic hormones, glycaemia, growth hormone and somatomedin C in obese children. 1021 71

Nowadays besides the commonly accepted atherogenic risk factors a special emphasis is laid on the significance of testosterone in atherogenesis in men which physiologic deficit during "andropause" is able to promote this pathology. An elevated estradiol:testosterone ratio seems to be an independent risk factor of atheromatous heart complications. There is a proved positive correlation between free testosterone, total testosterone, dihydrotestosterone and HDL-cholesterol, apoA1 apolipoprotein. The relationship between LDL-cholesterol, VLDL-cholesterol, total cholesterol and total and free testosterone seems to be unanimous, but in certain studies the beneficial influence of testosterone on the mentioned lipids has been observed. The discussed hormone is also functionally connected with coagulation and fibrynolisis; a positive correlation was found between endogenous testosterone and tPA-Fx and a negative correlation between testosterone and PAI-1, fibrinogen, D-dimers, alpha 2-antiplasmin. Testosterone is a functional regulator of the vascular tonus and influences on reological properties of microcirculation (the application of testosterone infusion into canine coronary arteries causes the dilatation of main and the small vessels, through NO syntetase induction and ATP-dependent K(+)- channel activation). A statistically significant positive correlation between testosterone and insulin has been stated (an elevated oestradiol:testosterone ratio is connected with the insulin resistance). Additionally a negative relationship between testosterone and android obesity has been observed. Although nowadays there are more and more facts proving the benefits of the retaining the proper testosterone levels in aging men, the final influence of the testosterone supplementary therapy on atherogenesis is not solved.
Pol Merkur Lekarski 1999 Apr
PMID:[Testosterone and atherosclerosis in males during andropause]. 1039 Oct 62


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