Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0018799 (heart disease)
 34,133 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Cardiac imaging using m-[123I]iodobenzylguanidine (mIBG) reflects sympathetic myocardial innervation. In patients with insulin-dependent diabetes mellitus (IDDM), the following were studied: 1) the prevalence of derangements of cardiac autonomic innervation as detected by mIBG scintigraphy in comparison with cardiovascular reflex tests and 2) the relationship between adrenergic cardiac innervation and left ventricular (LV) function. Twenty-four patients with IDDM without overt heart disease were studied after silent coronary artery disease was excluded by 201Tl scintigraphy. Cardiac innervation was evaluated by both mIBG scintigraphy (tomographic imaging) and cardiovascular reflex tests. Systolic (ejection fraction [EF] percentage) and diastolic (peak filling rate [PFR] defined as end-diastolic volumes per second [EDV/s]) LV function were determined by equilibrium radionuclide angiography at rest and during bicycle exercise. mIBG scintigraphy was also performed in 10 control subjects. All control subjects exhibited a normal myocardial mIBG distribution. Among diabetic patients, only six had normal mIBG scans (group 1), whereas 18 had evidence of regional adrenergic denervation (group 2). Reflex tests suggested cardiac autonomic neuropathy in only seven of these patients (P < 0.01 vs. mIBG). All patients had a normal EF at rest. However, group 2 showed an impaired response to exercise as indicated by a smaller increase in EF (5 +/- 6 vs. 13 +/- 5%, P < 0.05) and a lower PFR (5.9 +/- 0.8 vs. 7.3 +/- 1.2 EDV/s, P < 0.01). Myocardial mIBG scintigraphy reveals that in patients with IDDM, sympathetic myocardial dysinnervation is much more common than previously thought. Furthermore, subclinical LV dysfunction is related to derangements of adrenergic cardiac innervation.
 ...
PMID:Myocardial m-[123I]iodobenzylguanidine scintigraphy for the assessment of adrenergic cardiac innervation in patients with IDDM. Comparison with cardiovascular reflex tests and relationship to left ventricular function. 772 13

Many ethnic groups at high risk of non-insulin-dependent diabetes mellitus are hyperinsulinaemic by early adult life. This study assessed whether such hyperinsulinaemia is present at birth. Cross sectional comparisons of maternal biochemistry, umbilical cord biochemistry and neonatal anthropometry were made between one 'low risk' and three 'high risk' ethnic groups, without diabetes in pregnancy in Auckland, New Zealand. The study comprised 123 European, Polynesian (Maori and Pacific Islands) and Indian normal pregnancies. Indian mothers were the smallest, with the highest insulin and non-esterified fatty acid concentrations. Polynesian mothers were the most obese with a higher fructosamine concentration. From these pregnancies, Indian neonates were smaller, slimmer, with the highest cord triglyceride (0.6 mmol/l vs 0.4 mmol/l, p < 0.01), and lowest cord insulin concentrations (7.1 mU/l vs 8.6 mU/l (European), 9.2 mU/l (Polynesian), p < 0.05). Polynesian babies had a high cord insulin: C-peptide ratio (52.5 mU/nmol vs 44.4 mU/nmol (European), 44.1 mU/nmol (Indian), p = 0.05). Although reduced intrauterine growth may contribute to the excess of diabetes and heart disease in Indians, it cannot explain the excess of diabetes in Polynesians. Exposure to minor relative maternal hyperglycaemia in the mother and abnormal neonatal insulin handling (as demonstrated by the higher insulin: C-peptide ratio) may be of long-term significance in Polynesians.
 ...
PMID:Differences in umbilical cord insulin and birth weight in non-diabetic pregnancies of women from different ethnic groups in New Zealand. 780 24

High levels of dietary fat enhance the severity of certain cancers, obesity, and cardiovascular diseases in susceptible individuals usually after prolonged exposure. We have been developing methods for identifying and characterizing genes regulated by the level of dietary fat for the purpose of determining their role in diseases promoted by high levels of dietary fat, particularly cancer and atherosclerosis. Our protocol employs semi-purified diets of reproducible composition fed to normal inbred mice to obtain reagents for studying of molecular events that lead to pathology. Our early studies demonstrated that different levels of dietary fat cause the accumulation or change in expression of two genes, designated Lfm-1 and Lfm-2 (low fat mammary) in mouse mammary glands and selected other tissues. The Lfm-2 gene is stearoyl CoA desaturase, a gene known to be regulated by dietary fat and insulin levels. The Lfm-1 gene is highly similar to the e subunits of bovine and rat F1F0-ATPases. A Lfm-1 restriction fragment length polymorphism located on chromosome 8 is associated with atherosclerosis in certain inbred strains of mice warranting additional tests to determine whether it is involved in initiation or promotion of heart disease. The experimental approach has the potential for analyzing genes regulated by approximately 50 essential nutrients or other dietary constituents. A potential outcome of this research is the development of reagents which can be used to predict the risk of diet-related diseases in individuals.
 ...
PMID:Diet-disease interactions at the molecular level: an experimental paradigm. 791 20

During the past decade, the annual incidence of patients entering long-term dialysis for end-stage renal disease (ESRD) has been increasing, while mortality from stroke and coronary artery heart disease has been decreasing. In the Southeast, hypertension is the most common cause of ESRD, followed closely by diabetes mellitus occurring most frequently in older minority patients, particularly blacks. The causes of the increase in ESRD are not known. Although control of any degree of hypertension with any antihypertensive drug will slow the progression of renal failure from any cause, captopril, an angiotensin-converting enzyme (ACE) inhibitor, has been shown to slow progressive renal failure in patients with insulin-dependent diabetes mellitus to a greater degree than that expected from only its antihypertensive effect. This series of articles, originally presented at the 1993 annual meeting of the Southern Medical Association, reviews the epidemiology and pathophysiology of ESRD and offers a clinical approach to this serious problem.
 ...
PMID:End-stage renal disease: a southern epidemic. 793 13

The relation of fasting and 2-hour serum insulin to the risk for fatal cardiovascular disease was examined in men and women without diabetes. Between 1984 and 1987, 80% of all surviving local members of the Rancho Bernardo Study cohort had measures of insulin and glucose levels obtained before and after a 75-g oral glucose tolerance test. Over the next 5 years, there were 24 cardiovascular disease deaths among 538 men and 21 cardiovascular disease deaths among 705 women. Fasting insulin was unrelated to cardiovascular disease death in men or women; 2-hour insulin was significantly lower in men (but not in women) who died from cardiovascular disease. In men, a 1-standard deviation increase in 2-hour insulin was associated with a 36% reduction in cardiovascular disease mortality (p = 0.01). The significant inverse association of 2-hour insulin with cardiovascular disease death persisted in multiply adjusted models (relative hazard = 0.68; 95% confidence interval 0.47-0.96). Patterns were similar when the analysis was repeated, including men with non-insulin-dependent diabetes mellitus or heart disease at baseline. These findings were not explained by antihypertensive drug use or cigarette smoking. Hyperinsulinemia was not a risk factor for cardiovascular disease in these older men or women. The role of insulin as a cardiovascular disease risk factor requires further investigation.
 ...
PMID:Hyperinsulinemia does not increase the risk of fatal cardiovascular disease in elderly men or women without diabetes: the Rancho Bernardo Study, 1984-1991. 797 73

A 62-year-old male patient, suffering from a hypertensive cardiopathy, an arteriopathy of the lower extremities and a type II insulin independent diabetes had a prothrombin time ratio R of 2.15 (therapeutic range: 2.1-1.45) during a daily treatment of 4-6 mg acenocoumarin. On admission to the psychiatric hospital for depression, a mianserin treatment was commenced, leading to a sharp modification in the PT ratio R, in effect that the acenocoumarin treatment had to be increased to keep R within the therapeutic range. The possible mechanism of this interaction between mianserin and acenocoumarin is discussed, taking into account the possible role of the comedicated amiodarone.
 ...
PMID:Interaction between mianserin and acenocoumarin: a single case study. 803 74

Diabetics patients have a greater risk of morbi-mortality associated to macrovascular disease, which may show as ischemic cardiopathy, stroke and peripheric vascular disease. The high atherogenesis in these patients. Consequently, the therapeutical goals aimed to the reduction of plasmatic lipids must be stricter among the diabetic population and, especially, among women, that among non-diabetic subjects. The first therapeutical step should be to reach a proper metabolic control through diet, exercise and, if necessary, insulin or oral antidiabetics. If these measures are not enough, hypolipemic drugs should be added.
 ...
PMID:[Detection and management of lipid disorders in the diabetic patient]. 804 29

Diabetes occurs in more than 13 million persons in the United States, and approximately 60% of the new cases are diagnosed in women. This review examines health issues related to women with diabetes mellitus. The following issues are discussed in the review. The prevalence of diabetes is higher in Native-American, black, and Hispanic women than in white women. Women with upper-body obesity are at risk for developing non-insulin-dependent diabetes mellitus (NIDDM) and women with diabetes are at risk for developing heart disease. Diabetes, obesity, and heart disease are all modifiable by nutrition. White women with diabetes derive approximately 40% of energy from fat, which is 10% greater than the national goal. Women with a history of gestational diabetes are at risk for developing NIDDM. Women with insulin-dependent diabetes mellitus (IDDM) are at high risk of developing complications in pregnancy, and pregnancy outcomes improve with preconceptual counseling. Women with IDDM are at risk for developing eating disorders, although not to a greater extent than the nondiabetic population. Women with diabetes are at risk for developing endometrial cancer. Both IDDM and NIDDM prevention clinical trials are in progress, although none target women specifically. Dietetics practitioners are encouraged to use local and national diabetes resources.
 ...
PMID:Diabetes mellitus--a priority health care issue for women. 807 95

Permanent pacing can prevent recurrent symptoms and reduce mortality in elderly patients with symptomatic high-degree atrioventricular (AV) block. However, long-term survival with respect to comparable control subjects has not been well defined. In our study, relative long-term survival and prognostic predictors after permanent pacemaker implantation for symptomatic high-degree AV block were assessed among all residents of Olmsted County, Minnesota, who were > or = 65 years old. Of the 154 patients, 77 were men and 77 were women (mean age 80 +/- 7 years). Follow-up was 0.1 to 19.8 years (mean 4.2 +/- 2.8). Sixty-nine patients had isolated AV block and 85 had coexisting heart disease. Observed survival at 1, 3, 5, and 10 years was 85%, 68%, 52%, 21%, and 72%, 50%, 31%, 11% for patients with isolated AV block and patients with coexisting heart disease, respectively (p = 0.006). Observed survival in patients 65 to 79 years old with isolated AV block was comparable to age- and sex-matched cohorts (p = 0.53), but in patients aged > or = 80 years, it was less than that for control subjects (p = 0.014). In patients with coexisting heart disease, observed survival was less than that for control subjects in patients 65 to 79 years old (p < 0.001) and > or = 80 years (p < 0.001). Multivariate analysis identified congestive heart failure, chronic obstructive pulmonary disease, age, syncope, insulin-dependent diabetes mellitus, and male gender as independent predictors of increased mortality.
 ...
PMID:Long-term survival after pacemaker implantation for heart block in patients > or = 65 years. 807 38

The safety of autologous blood donation by "high-risk" patients (those with some preexisting medical conditions) has been questioned. The authors reviewed 1393 consecutive blood donation records (207 high-risk autologous [HRA], 665 non-high-risk autologous [NHRA], and 521 directed donors [DD]) to determine the safety and outcome of blood donation by HRA patients as compared with other donors at their center. The HRA group included patients with a history of significant coronary artery on cerebral vascular disease, recent seizures, cardiac arrhythmia, chronic heart failure, valvular or congenital heart disease, symptomatic dyspnea, insulin-dependent diabetes and/or current therapy with two or more antihypertensive medications. Those designated NHRA were all other autologous donors; DD met all criteria for homologous donation. Donor characteristics including predonation hematocrit, pre- and postdonation mean arterial pressure and heart rates were similar in all groups. Eight HRA donors (3.9%) had reactions, compared with 21 NHRA (3.2%) and 23 DD (4.4%), a difference that was without statistical significance. The reaction rate in all autologous donors (HRA and NHRA) was 3.4%. No differences in symptoms reported, hemodynamics or reaction severity were observed among the three groups (P > .05). A multiple logistic regression was performed within and among the groups with the risk factor categories listed above and medication classes including beta blockers, cardiac glycosides, calcium-channel blockers, antihypertensive agents, nitrates, and antiarrhythmic agents (chi 2 = 14.9; P = .0006). Only first-time donation (P = .0001) and cardiac glycoside usage (P = .04) were positively associated with an untoward reaction. The authors conclude that donation by HRA donors is at least as safe as that by donors who meet homologous donation criteria in their population and setting.
 ...
PMID:Comparable safety of blood collection in "high-risk" autologous donors versus non-high-risk autologous and directed donors in a hospital setting. 787 63


<< Previous 1 2 3 4 5 6 7 8 9 10 Next >>