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

Obstructive sleep apnea (OSA) is a common syndrome occurring in 1% to 4% of the population. While obesity is the most common predisposition to OSA, metabolic disorders have been associated with this syndrome. We describe a patient who presented with severe OSA while in an advanced untreated uremic state, which resolved following intensive dialysis. We speculate that the sleep disturbances, which are common in uremia, may be accounted for in some patients by OSA and may resolve with specific therapy for advanced renal failure.
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PMID:Reversal of sleep apnea in uremia by dialysis. 360 92

Zinc, an important enzymatic cofactor, takes part in numerous metabolic pathways. In man, zinc deficiencies may be due either to deficient absorption or to excessive use. In this study in 285 patients hospitalized in a department of internal medicine for acute or chronic conditions, serum zinc assays have shown the following results: serum zinc concentrations are significantly decreased in acute critical conditions (cardiovascular ischemic disorders, heart failure, infections); in chronic conditions, serum zinc is decreased in some instances (renal failure, cancer, alcoholism, diarrhea), while it remains normal in others (compensated heart failure, non-insulin dependent diabetes, arterial hypertension, obesity). The fall in serum zinc concentrations is usually correlated with the severity of the clinical condition.
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PMID:[The effect of various diseases on the zinc plasma level]. 630 73

This paper is a study of 117 patients with endstage renal failure, treated by continuous ambulatory peritoneal dialysis (CAPD) over periods of 1-56 months. The study has shown CAPD to be an effective form of dialysis with a number of advantages over intermittent peritoneal dialysis and hemodialysis (better control of salt and water status, hypertension and anemia, steady state biochemistry and greater ease of self-dialysis). Peritoneal clearance and ultrafiltration have remained adequate in all but a few patients. Hypoproteinemia, poor nutrition, obesity and abdominal herniae have been problems in a small percentage of patients. Hyperlipidemia has developed in half the patients but improved with diet. Peritonitis remains the major barrier to the more widespread use of CAPD, although its incidence can be considerably reduced by use of better connectors, bacterial filters and choice of patients.
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PMID:Continuous ambulatory peritoneal dialysis (CAPD): an established treatment for endstage renal failure. 636 Jan 16

The complications of cadaveric renal transplantation in a group of 10-year survivors are presented. Fifty-two (44%) of 119 graft recipients survived more than 10 years, 48 with their original allograft. The major causes of death in the others were bacterial (24%) and other (10%) infections, cerebral (12%) and myocardial (7.5%) vascular disease. Serious morbidity in the survivors included infectious episodes (55%), skin cancer (40%), vascular disease (30%), cataracts (45%) and aseptic necrosis of bone (13%). Only six (12%) patients had no complications. Although complications were frequent, 34 patients (72%) were fully rehabilitated to work or household duties. Several recipients have become parents. Prevention of the late complications of transplantation must be aimed at reducing the known risk factors early in the course of renal failure. These include hypertension, obesity, cigarette smoking and sun exposure.
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PMID:Delayed complications of renal transplantation and their prevention. 675 92

Cardiovascular disease is the leading cause of death worldwide. Hypertension--the leading cause of heart attack, stroke, and kidney failure--occurs in more than 20% of adults in most modern societies. Hypertensive patients have defective sodium metabolism. From childhood throughout adult life most acculturated peoples consume 10 to 20 g of salt daily and have more obesity. Populations with low blood pressure are more active, leaner, and consume a diet low in sodium and high in potassium; however, when members of these groups are exposed to western diets, blood pressure increases with age and hypertension occurs. Drug treatment to control blood pressure prevents deaths. Conservative management, including low-sodium, high-potassium diets, restores normal blood pressure in more than half of hypertensive patients. More information on the cause and mechanisms of this condition is needed, but our primary concern is for improved nutrition and drug treatment to prevent hypertension-related cardiovascular deaths.
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PMID:Sodium intake and hypertension: a cause for concern. 684 11

During a 1-year period all Black patients admitted to two medical wards in the Johannesburg General Hospital were screened for malignant hypertension. Of the 62 patients eligible for inclusion in the study, 51 were thought to have essential malignant hypertension (hospital prevalence 2,2%). There was a striking absence of the cardiovascular and hypertensive risk factors usually described -- excessive smoking, alcohol consumption and obesity. The presenting features and complications were similar to those described in other series. Cardiac failure was present in 45% of the patients, neurological complications in 33%, and advanced renal failure in 47%. Twenty patients required dialysis. No evidence of ischaemic heart disease or atheromatous vascular disease was found. Red cell fragmentation was present in 25% of the patients. The hospital mortality rate was 25%. Only 24% of the patients had previously been diagnosed as having hypertension, although 43% had been examined by a doctor during the preceding 2 years. Of the patients discharged to the hypertension clinic, only 28% returned for short-term follow-up. Malignant hypertension is therefore a major medical and social problem in the Johannesburg Black community.
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PMID:The malignant phase of essential hypertension in Johannesburg Blacks. A prospective study. 708 52

In this review, which only partially covers the data available, it is pointed out that the evaluation of the results of jejunoileostomy may depend upon the criteria used by the observers, and disclosure of the true effects of the operation may depend upon the long-term follow-up of the patients. With increasing length of observation, it has become apparent that problems such as vitamin D deficiency, renal stone formation, continued steatorrhea, gallstones, zinc and copper deficiency, and even renal failure may be seen with disturbing frequency. Some of these may be preventable, others may be correctable and, indeed, the overall incidence of genuinely severe problems may, in the long run, be sufficiently low so as to make the benefits of jejunoileostomy outweigh the hazards. The rate of patient satisfaction is high, quality of life is generally improved and psychosocial and economic benefits of jejunoileostomy are apparent. The operation may also be a better alternative than the physical hazards of continuing obesity. Whether or not gastric bypass represents a true improvement over jejunoileostomy will depend upon the conclusions reached after applying to it the same searching scrutiny that is being used to examine the long-term results of jejunoileostomy.
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PMID:Assessment of jejunoileostomy for obesity--some observations since 1976. 735 16

A modification of the Cortipac procedure (Radiochemical Centre, Amersham) for the estimation of urinary free cortisol was found to be of value in the diagnosis of Cushing's syndrome and in the differentiation of simple obesity from that due to Cushing's syndrome. The effect of renal failure and late pregnancy on the urinary free cortisol was also studied. The results were expressed both in terms of the urinary free cortisol and as a urinary free cortisol:creatinine ratio.
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PMID:Applications of a modified Cortipac procedure for the estimation of urinary free cortisol in various clinical situations. 735 63

This review describes categories of renal function (normal, renal insufficiency, end-stage renal failure), types of treatment modalities (renal insufficiency management, dialysis, transplantation), and corresponding dietary parameters (protein, energy, fiber, sodium, fluid, potassium, phosphorus, calcium, vitamins, minerals). The focus is directed toward general and nonrenal specialty practitioners, who are encountering a growing number of geriatric patients and patients who have undergone renal transplantation or are in early renal failure. The findings indicate that early intervention may delay or prevent rapid progression of renal disease in some patients, that treatment modalities continue to need individualized dietary support to maintain nutritional status, and that transplant goals should include control of obesity and hyperlipidemia to reduce cardiovascular mortality.
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PMID:Which diet for which renal failure: making sense of the options. 861 54

Plasma-derived vaccines and yeast-derived recombinant vaccines against hepatitis B virus (HBV) infection have gained an acceptable record of efficacy. However, non- or hyporesponsiveness to immunization does not only occur in cases of obesity, renal failure or immune suppression, but also in healthy individuals. There is therefore a rationale for developing more immunogenic vaccines against HBV, especially for those populations who are potential non- or hyporesponders. Currently used recombinant hepatitis B vaccines consist of antigen particles assembled with the product of 226 amino acids encoded in the S gene. Since proteins encoded in the pre-S gene are also incorporated in the HBV envelope, pre-S gene products should, at least in theory, be useful in improving protection with hepatitis B vaccines. Inactivated hepatitis A vaccines are more potent than currently used hepatitis B vaccines. Two injections of a standard dose of HAVRIX (SB) by the intramuscular route, or even a single injection using a higher dose (HAVRIX 1440), will achieve protective levels of antibodies. Therefore, increased potency is not essential with inactivated hepatitis A vaccines. New hepatitis A vaccines are likely to be recombinant or attenuated live types. Another aspect of the improvement of existing hepatitis A and B vaccines is unification into a combined form.
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PMID:New approaches to hepatitis A and B vaccines. 765 55


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