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 277,896 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Vaccine-induced levels of antibody to Streptococcus pneumoniae of approximately 250-300 ng of antibody nitrogen/ml are protective against pneumococcal disease. Side effects of vaccination are not severe and are generally confined to local reactions at the site of inoculation. Patients with a documented high risk of acquiring pneumococcal disease include the elderly, especially those with underlying cardiopulmonary disease, and those with sickle cell anemia, Hodgkin's disease, a renal transplant, multiple myeloma, asplenia, and nephrotic syndrome. People with insulin-dependent diabetes mellitus or renal failure do not appear to be at high risk. All of these groups, except those with multiple myeloma, respond to vaccine with levels of antibody that are protective for many but not all of the serotypes included in the vaccine. Immunosuppression, splenectomy, and hemoglobinopathy depress antibody response. Duration of vaccine-induced antibody is unknown but may be shorter than that in normal persons. Preliminary guidelines for vaccination are proposed.
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PMID:Assessment of the antibody response to pneumococcal vaccine in high-risk populations. 702 58

Patients with cystic fibrosis are chronically exposed to several potentially nephrotoxic factors. These include bacterial infections with their associated immune complexes and the antibiotics (aminoglycosides) used in their treatment. In addition, diabetes mellitus, liver disease, and cor pulmonale, commonly seen in these patients, may produce renal injury. To assess the extent of this injury, we performed morphologic and immunopathologic studies of the kidneys of 34 patients at autopsy. The group included 23 female and 11 male patients; their ages ranged from 4 months to 35 years and their disease was diagnosed one month to 22 years prior to death. The histological changes included glomerulomegaly, a mesangiopathic lesion, and tubulointerstitial disease frequently associated with acute and chronic tubular injury. The last was characterized by abundant tubular lysosomal proliferation and tubular atrophy suggestive of chronic amino-glycoside injury. Diagnostic diabetic lesions were not seen. Immunofluorescence studies predominantly revealed deposits of IgM or C3, or both, in glomeruli and arterioles in 18 patients. Although an anti-Pseudomonas antiserum did not show bacterial antigens in the tissues, elution studies in two specimens demonstrated antibacterial antibodies. These observations, coupled with the finding of ultrastructural glomerular deposits, suggest immune complex-mediated injury. No correlation was found between the severity or type of renal histologic lesion and patient age or duration of cystic fibrosis. Despite the occurrence of renal failure in six patients, renal involvement is currently of limited clinical concern in cystic fibrosis. Nevertheless, continued exposure to bacterial immune complexes and aminoglycosides, among other factors, can result in potentially serious renal disease.
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PMID:The nephropathy of cystic fibrosis: a human model of chronic nephrotoxicity. 712 9

Twenty-four patients, all of them over 15 years, with the Prader-Willi syndrome are described. Obesity, often extreme, associated with an insatiable appetite, was their principal handicap and this was made worse by educational subnormality and hypogonadism. Three of the them developed diabetes. Each attended a special school or an adult training centre. Although most of them were of short stature and had scoliosis, 2 were tall but they even more severely mentally retarded than is usually the case. Nine other patients died aged between 3 and 23 years. The most common cause of death was cor pulmonale.
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PMID:Prader-Willi Syndrome after age 15 years. 721 56

To determine the long-term prognosis of patients (pts) with angina-like chest pain and normal coronary arteriograms, 178 pts (61 women, 117 men; mean age 48.1 years) were followed for an average of 9.8 years (5.5-13.1 years). Eight pts (4.5%) died during follow-up: One pt from acute myocardial infarction, one pt suddenly, one pt from chronic cor pulmonale and 5 pts from non-cardiac diseases. Chest pain remained constant in 137/170 surviving pts (80.6%), but disappeared in 33 pts (19.4%). Nine of the 178 pts (5.1%) developed manifest coronary artery disease (CAD): four of them (2.2%) acute myocardial infarctions including one death, after an average of 7.2 years; in five pts (2.8%) with continued chest pain a second coronary angiogram showed typical CAD. These pts with manifest CAD averaged 2.1 risk factors: six pts were smokers, two pts had elevated cholesterol levels (> 7.5 mmol/l), three pts had elevated triglyceride levels (> 2.4 mmol/l), two pts had a diabetes mellitus type IIa and six pts were hypertensives. Patients without manifestation of CAD averaged only 1.4 risk factors (p < 0.05). Our data show that pts with angina-like chest pain and normal coronary angiograms have an excellent long-term prognosis (only 0.51% of patients with new manifestations of CAD per year). However, angina-like chest pain can persist over many years.
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PMID:[Long-term follow-up of patients with angina pectoris-like chest pain and normal coronary angiogram]. 847 Apr 21

Heart failure is a common and serious condition in many parts of the world and is a frequent cause for hospital admission in the Chinese population of Hong Kong. There is no published information on the epidemiology of heart failure in this community or from mainland China. Therefore, a prospective study of consecutive patients admitted with the clinical diagnosis of heart failure has been carried out to identify the main risk factors or possible causes, and other clinical data. Seven-hundred thirty consecutive patients with cardiac failure were identified and studied. Standard clinical criteria were used for diagnosis and identification of the main or most likely aetiologies and echocardiography was done in 30%. The data analysis of the 730 patients showed the following. The majority were females (56%) and the prevalence of heart failure increased with age (mean age 73.5 +/- 11.7 years) with 76% of the women > 70 years old. In contrast, the men were younger with 40% < 70 years old. The main identifiable risk factors were hypertension (37%), ischemic heart disease (31%), valvular heart disease (15%), cor pulmonale (27%), idiopathic dilated cardiomyopathy (4%), and miscellaneous (10%). In women, hypertension was the commonest cause at all ages but in men aged < 70 years ischemic heart disease was equal in frequency to hypertension (36% and 35%, respectively). Twenty-one percent had diabetes compared to a community rate of 10% for this age group (odds ratio 2.25, P < 0.0001). There was considerable overlap between diabetes, hypertension and ischemic heart disease. The estimated incidence rate was 3.8/1000 women and 3.0/1000 men aged > 45 years old.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:The aetiology of heart failure in the Chinese population of Hong Kong--a prospective study of 730 consecutive patients. 852 94

This paper introduced a new index--geracomia effect index (GEI) which is expressed by the ratio of survival years of the elderly after their retirement to the expected survival years in order to evaluate the health care service to the elderly. The application of this index was discussed using the mortality data of cardiovascular diseases of a city from 1983 to 1994. The results showed that coronary heart disease, pulmonary heart disease and cerebrovascular disease had a stable influence on the survival years of the elderly during this period while the negative effect of diabetes had been weaken with the calendar years. However, myocardial infarction had begun to threaten the younger groups. The author realized that it needs further practice to make the index applicable.
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PMID:[An new index to evaluate the elderly health care-geracomia effect index]. 938 83

Patients with hip disarticulation (HD) require high energy expenditure for successful prosthetic ambulation. Thus, older patients are rarely fitted with an HD prosthesis. To our knowledge there are no reports of gait analysis following successful prosthetic fitting of an elderly HD amputee patient with systemic cardiopulmonary disease. We report the case of successful prosthetic ambulation in a 73-year-old man with HD secondary to histiosarcoma and a medical history significant for stable angina, chronic obstructive pulmonary disease, and diabetes mellitus. The patient underwent gait training with an endoskeletal prosthesis and achieved ambulation to 400 feet with bilateral forearm crutches. Vicon kinematic gait analysis revealed a cadence of 44 steps/min (112 steps/min normal), and double support time of 47% (26% normal). Oxygen rate during ambulation (VO2) was 11.0 mL/kg/min at velocity of .35 m/sec, compared with published figures for ambulation in those with HD of 10.73 mL/kg/min at velocity of .93 m/sec. At 1-year follow-up, the patient continued to walk into church with the prosthesis. We conclude that a trial fitting of an HD prosthesis should be considered on an individual basis in elderly amputee patients.
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PMID:Successful prosthetic fitting of a 73-year-old hip disarticulation amputee patient with cardiopulmonary disease. 959 4

Chemical intolerance, or reported illness from odors of common environmental chemicals (e.g., car exhaust, pesticides), is emerging as an important environmental and public health-care issue. Epidemiologic methods provide relevant heuristic devices for studies of complex disorders, such as chemical intolerance. The authors examined personal and reported parental cardiopulmonary disease prevalence rates in a community sample of chemically intolerant and control individuals. A county government (Tucson, Arizona) employee and kin subset (N = 181; 113 households) completed standard health questionnaires. Investigators determined chemical intolerance (n = 41/181) from self-reports of individuals who felt "moderately" to "severely" ill from exposure to at least three of five chemicals (i.e., car exhaust, pesticides, paint, new carpet, and perfume) on a Chemical Odor Intolerance Index. The authors chose the control group (n = 57/181) on the basis of self-reports of "never" feeling ill on the Chemical Odor Intolerance Index. The chemically intolerant group, which primarily comprised women (78% versus 51% of controls, p < .05), was significantly more likely to report-and to have sought--medical attention for heart problems, bronchitis, asthma, and pneumonia. Reports of heart problems in the chemically intolerant index cases and the occurrence of heart disease in both of their parents were significant (Fisher's p < .05). The chemically intolerant individuals were also significantly more likely to report maternal histories of chest problems (e.g., inhalant allergens, tuberculosis) than controls. The findings of the study suggested that the chemically intolerant individuals (a preponderance of whom were women [sex-related risk]) were more likely to have (a) reported cardiopulmonary problems (i.e., greater health risk); (b) actively sought medical care for these problems (i.e., increased medical utilization); and (c) reported more parental illnesses-particularly heart disease, asthma, and diabetes (i.e., genetic risk). Additional community-based studies of chemical intolerance are needed.
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PMID:Increased cardiopulmonary disease risk in a community-based sample with chemical odor intolerance: implications for women's health and health-care utilization. 976 80

A cohort of 766 patients with non-insulin-dependent diabetes mellitus (NIDDM) from a general teaching hospital in Taipei, Taiwan were followed prospectively to assess survival experience and associated risk factors. Data were abstracted from the medical records and additional information was obtained from patients or their closest relatives using a structured questionnaire. Date and cause of death were determined from death certificates. Standardized mortality ratios were calculated by the direct method. Chi2-Square test and Cox's proportional hazard analysis were used to control for potential confounders. During a median follow-up of 3.5 years (range 1 month to 4.6 years), 131 deaths occurred. Of these, 29.8% were due to cardiopulmonary disease (ICD 401-429), 13.0% due to cerebrovascular disease (ICD 430-438), 13.0% due to acute diabetes metabolic complications (250.1, 250.2), and 11.4% due to nephropathy (580-589). Adjusted for age, people with NIDDM had 2.2 (95% CI 1.6-2.9) times the risk of death than members of the general population, and cause-specific standardized mortality ratios were: CPD 4.6, nephropathy 8.8, cerebrovascular disease 1.9, and neoplasm 0.7. Age, fasting plasma glucose, hypertension, and proteinuria were positively and independently associated with all-cause mortality (P < 0.05 for each). Thus, NIDDM patients have higher mortality rates than the general population in Taiwan, and age, fasting plasma glucose, hypertension, and proteinuria are associated with this excess risk. Proper application of available interventions may control these factors with a consequent reduction in mortality. Particular attention is needed to prevent deaths from the acute metabolic complications of diabetes.
Diabetes Res Clin Pract 1999 Feb
PMID:Causes of death and associated factors among patients with non-insulin-dependent diabetes mellitus in Taipei, Taiwan. 1022 62

The goal of this article is to provide a perspective on how research involving the acute and chronic effects of exercise (referred to as "exercise sciences") on the structure and function of organs systems will evolve in the next century. Within the last 30 years, exercise-related research has rapidly transitioned from an organ to a subcellular/molecular focus. Thus future research will continue to be heavily influenced by molecular biology tools, fueled by both emerging technologies (e.g., "gene-chip microarrays") designed to dissect gene function on a macro scale as well as by the completion of the human genome project in which the approximately 80,000 genes comprising humans will be completely sequenced. These successes will drive the emerging fields of functional genomics (the dissecting of a gene's identity and function) and proteomics (the study of the properties of proteins). Funding levels at the National Institutes of Health will likely increase in order to expand these emerging fields as well as provide avenues for translating fundamental knowledge into solving the complexities of a number of degenerative diseases influenced heavily by activity/inactivity factors such as cardiopulmonary disease, diabetes, obesity, and the debilitating disorders associated with aging. Thus there are many challenges facing future exercise scientists who must harness the new technologies and take an aggressive stance in bringing this important field to the forefront.
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PMID:Research in the exercise sciences: where do we go from here? 1064 98


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