Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0004153 (atherosclerosis)
 77,401 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Physical inactivity is a risk factor for the development of atherosclerosis. Members of a state chapter of the American Academy of Pediatrics were assessed about their practice behaviors and knowledge related to physical activity and fitness assessments. During health supervision evaluations 19% obtained a physical activity history and 7% measured a heart rate response to exercise. When assessing physical fitness 24% obtained an activity history which included kind, intensity, duration and frequency. 64% limited their physical fitness evaluation to an inspection of general appearance and weight, while 1% used a bicycle ergometer or treadmill, 4% used a step-test and 10% ran a child in place. Only 42% used the information to make recommendations about physical activity. 75% were not familiar with ACSM or AHA recommendations about exercise. Barriers cited to increasing physical activity and fitness assessments included lack of physician time, office space, staff time, and physician training. This survey demonstrates the need for increasing the awareness level of pediatricians about the role of exercise in preventing CHD and the need to incorporate such evaluations into their routine practice.
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PMID:Physical activity and fitness assessment. 195 Sep 43

Polyunsaturated fatty acids can be used to replace saturated fatty acids in the diet in order to decrease plasma cholesterol concentrations. Intakes of up to 12% of the energy intake as linoleic do not decrease HDL cholesterol. Animal studies show a decreased incidence of atherosclerosis in animals fed polyunsaturated fats compared with saturated fats. Linoleic acid is required for the synthesis of eicosanoids, which are important in the regulation of platelet aggregation, blood pressure and coronary flow. Small amounts of linoleic acid are required for normal eicosanoid synthesis but larger intakes may lead to overproduction of eicosanoids. Dietary eicosapentaenoic and docosahexaenoic acids, which are provided by fish oils, have a protective effect on experimental myocardial infarction. Epidemiological evidence and secondary prevention trials suggest that these marine-derived polyunsaturates offer protection from CHD. Current advice on fat intake needs to be revised to take into account the neutrality of monounsaturated fatty acids and the need to balance the different types of polyunsaturated fatty acids.
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PMID:Polyunsaturated fatty acids and coronary heart disease. 208 10

Atherosclerosis is more common and severe in DM. The purpose of this study was to compare the blood lipids profile and the prevalence of different coronary risk factors (CRF) in a mexican population with CHD (coronary heart disease) and DM compared with non DM patients. All had a history of myocardial infarction. Patients with nephropathy or other secondary causes of dyslipidema were excluded. There were two groups of 45 patients, 32 males, 13 females; age was 60 +/- 1 (SEM), body mass index (BMI) 26 +/- 6. Diabetes duration was 10 +/- 1 years. Diabetic individuals referred smoking in 58%, high blood pressure 55%, obesity (IQ greater than 27) 42%. There were no statistical differences with the non DM group. The mean values of total cholesterol, LDL cholesterol and triglycerides were similar in diabetics and non diabetics. HDL cholesterol was significantly lower in diabetic females (p less than 0.01). Hypoalphalipoproteinemia (HDL-C less than or equal to 30 mg/dL) was the most common abnormality in both groups (52% DM vs 38% nonDM) (p less than 0.01) Type IV phenotype was present in 40 vs 29% (NS). Lipid values were not related to BMI, metabolic control or diabetes type of treatment. To conclude, non insulin dependent diabetic patients with CHD have a high prevalence of CRF. Lipid abnormalities, particularly hypoalphalipoproteinemia and hypertriglyceridemia, could be a cause for the increased atherogenic risk, particularly in females.
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PMID:[Diabetes mellitus and ischemic cardiopathy: their relation to changes in plasma lipids and other coronary risk factors]. 209 Nov 76

After an extensive analysis of the world literature (121 references), beginning from the first reported case by Antopol and Kugel, 1933, the general review of the problem stressed especially the following morphologic characteristics and clinical significance of the anomalous origin of the left circumflex coronary artery (LCxA) from the right coronary artery (RCA): The place of the anomalous origin of LCxA from RCA among all other variations and anomalies of LCxA. The anatomical and topographical characteristics of LCxA originating from RCA in normal heart as well as in congenital heart diseases--CHD (especially complete transposition of great arteries--TGA). The formal genesis of LCxA from RCA according to original new Ogden's theory, taking into account the dual origin of the coronary arteries and the peritruncal angioblastic ring that surrounds the developing aorta and pulmonary artery. The frequencies of the origin of LCxA from RCA in autopsy and coronarography series. The importance of LCxA (by its origin and/or caliber) in determination of the right, left or codominance of the coronary arteries including the peculiarities in cases of isolated aortic stenosis and bicuspid aortic valve. The importance of recognizing LCxA from the RCA during implantation of artificial aortic, mitral and tricuspid heart valves, during mitral valve anuloplasty, closure of ostium primum defect as well as during aorto-coronary venous bypass. The LCxA from RCA, especially its proximal segment, shows more frequent and an earlier, faster and heavier obstructive atherosclerosis, causing different manifestations of coronary heart disease and sudden death. Also, mitral insufficiency can be caused by ischemia of the papillary muscles of the left ventricle. The awareness of the possibility that LCxA may arise from the RCA can prevent many complications during cannulations of the coronary arteries for diagnostic coronarography and myocardial perfusion during heart operations. The authors presented their 30 autopsied cases of LCxA from RCA, analysing morphological and topographic data as well as their clinical significance and association with other CHD. There were 6 isolated cases and 24 cases associated with other CHD (20 with TGA and 4 with other CHD). Our first autopsied case of LCxA from RCA was diagnosed as associated with tetralogy of Fallot in 1964. During the period 1964-1985 we had 1015 cases of CHD (including 132 cases of TGA).(ABSTRACT TRUNCATED AT 400 WORDS)
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PMID:[Pathologic morphology and clinical significance of the anomalous origin of the left circumflex coronary artery from the right coronary artery. General review and autopsy analysis of 30 cases]. 213 27

This review has highlighted some of the experimental studies in animals and humans that have shown an important link between dietary change and atherosclerosis. This relationship was further supported by population studies showing a key role for saturated fat intake in the determination of serum cholesterol level and the prediction of CHD. Recent data linking dietary cholesterol independent of serum cholesterol level to the prediction of CHD were discussed as well. Various components of the diet and their effects on lipid and lipoproteins were reviewed. The chief factors in the diet which raise cholesterol and low-density lipoprotein cholesterol (LDL-c) are dietary cholesterol, saturated fat, and excess calories leading to obesity. Dietary factors useful in lowering cholesterol and low-density lipoprotein cholesterol include monounsaturated fats, polyunsaturated fats, and dietary fiber, which can be substituted for saturated fats. The usefulness of a special class of polyunsaturated oil, the omega-3 fatty acids, in both lowering triglyceride levels and preventing thrombosis was also discussed. Although alcohol raises the HDL-c level, it is not clear that its use offers protection against CHD, and its risks clearly outweigh its advantages in this regard. Regular aerobic exercise is recommended as a healthier alternative to raising high-density lipoprotein cholesterol. Also discussed was postprandial lipemia, which may prove to be another indicator of risk of CHD. Finally, the recent NCEP dietary guidelines were discussed along with practical suggestions as to their implementation.
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PMID:Diet, lipids, and coronary heart disease. 216 70

Many lines of evidence converge toward the conclusion that low-density lipoprotein cholesterol (LDLC) is indeed a causal factor in the genesis of CHD. These range from animal studies, pathology studies, inborn errors of metabolism, clinical observations, and the existence of plausible biologic mechanisms, to the vast body of epidemiologic evidence. Observations of the association of LDLC with CHD hold between different populations, in the same population at different times, and to studies of individuals within populations. Finally, the clinical trials of cholesterol lowering, together with regression studies in animals and angiographic studies in humans, provide compelling evidence that the progress of atherosclerosis can be halted and the clinical sequelae can be reduced. The newly available results from more recent intervention studies have reinforced the validity of this conclusion. The intervention studies reduced the CHD incidence rate by approximately 2% for every 1% reduction in total cholesterol (TC) even though the studies were of relatively short duration (typically 5 years). More prolonged exposure to lower TC levels can be expected to yield even greater ultimate benefit. The benefit is most clearcut for men at highest risk. The combined data indicate that both fatal and nonfatal CHD can be reduced. More data on the extremes of age, on subjects with moderate elevations of TC, and on women would be valuable, but it is reasonable to proceed with advice to the general population aimed at reducing average cholesterol levels, and also to identify and treat those at high risk. There is good reason to expect that these measures will further reduce MI events and in all likelihood also MI deaths. Whether they will also reduce overall mortality is at present a moot point; however, a reduction in the burden of nonfatal MI would in itself be a very desirable objective.
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PMID:Does lowering serum cholesterol levels lower coronary heart disease risk? 219 74

In 2208 boys aged 15 to 22 years the incidence of risk factors of atherosclerosis were determined. The risk factors were found in 33.7% of boys. The level of risk factors in youth has increased with age (p = 0.001), especially hypertension (p = 0.001) and smoking (p = 0.001). The authors concluded that the most important methods of prevention of atherosclerosis in youth should be: identification of high-risk individuals (overweight, hypertension, hyperlipidemia, family history of CHD and PAD, ischemic postexercise ST segment depression), health education and motivation for change, modification nutritional habits in cases of hyperlipidemia and overweight (prevention of early atherosclerotic lesions in childhood), early diagnosis and control of hypertension, practice of low salt intake, avoidance of smoking, sufficient physical activity (prevention of atherosclerotic disease mainly in adulthood).
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PMID:Epidemiology of risk factors of atherosclerosis and preventive program for youth. 221 95

To elucidate the nature of lipid defects in patients with diabetes mellitus (DM) concurrent with acute myocardial infarction (MI), the study was undertaken to examine the serum concentrations of total cholesterol, triglycerides, alpha- and beta-lipoproteins with DM in the presence of acute MI. 40 non-diabetic patients with acute MI, 23 diabetics with postinfarct cardiosclerosis, and 17 non-insulin-dependent diabetics without signs of coronary atherosclerosis. Urinary epinephrine and norepinephrine excretion was additionally determined in the acute period and 3-4 weeks after therapy. Homogeneous lipid metabolic parameters were found in CHD patients with and without DM and when transient hyperglycemia developed. The patients with acute MI exhibited some increase in lipid consumption to satisfy the energy need for the cardiovascular system, this being true for triglycerides in DM patients. The DM patients who showed low triglyceride levels had more frequently transmural MI and MI complicated with heart failure. Obesity and familial histories of DM and CHD in DM patients with acute MI were ascertained to be accompanied by reduced serum alpha-lipoprotein concentrations.
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PMID:[The nature of changes in lipid metabolism in patients with diabetes mellitus associated with ischemic heart disease]. 227 41

Combined estimation of signs of cerebral circulatory disorders, the state of microcirculation and a degree of CHD was done in 111 male patients after myocardial infarction. Disorders in the system of the terminal bed which corresponded to the severity of clinical manifestations of disorders of coronary and cerebral circulation, were revealed in the overwhelming majority of the patients. The most noticeable changes in the terminal blood flow were observed in patients with marked clinical signs of atherosclerosis of the cerebral vessels. They also had a more severe course of postinfarction cardiosclerosis. Since noticeable microcirculatory disorders were detected in all these patients, it could be assumed that they were suggestive of the presence and severity of atherosclerosis. Symptoms of CNS lesion developed against this background and depended on the features of cerebral circulation and some other factors.
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PMID:[Correlations of clinico-functional manifestations of cerebral arteriosclerosis and microcirculatory indicators in patients with a history of myocardial infarction]. 229 Mar 27

The levels of plasminogen activator inhibitor (PAI), protein C (pC), total cholesterol (TC), high and low density lipoprotein cholesterols (HDLC and LDLC), apolipoproteins A1 (apoA1) and B (apoB) were measured in 45 patients with coronary heart disease angiographically documented and 10 healthy subjects without coronary heart disease and coronary atherosclerosis as evidenced by coronary angiography and provocative tests. Twenty three patients had primary angina (PA) with a duration of less than 3 months, twenty two patients presented with chronic coronary heart disease (CCHD) with a duration of more than 4 months. In general, a negative correlation between PAI and HDLC levels in the patients under study (r = -0.413; p = 0.02), it was higher in PA (r = -0.687; p = 0.02), but disappeared in CCHD (r = 0.027). The content of PAI correlated with the cholesterol index (r = 0.654; p less than 0.001 in the whole group), more greatly in PA (r = 0.865; p = 0.001) than in CCHD (r = 0.506, NS). There was a good correlation between the levels of pC and apoB in the whole group (r = 0.606; p less than 0.001) and in PA (r = 0.662; p = 0.001), but not in CCHD (r = 0.288, NS). The content of pC also correlated with a apoB/apoA1 ratio (r = 0.445; p = 0.002 in the whole group of patients). This correlation was significantly positive in PA (r = 0.455; p = 0.044), but not in CCHD (r = 0.022). Thus, higher levels of PAI coincided with atherogenic changes in those of HDLC, and an increase in the content of pC was in agreement with that of apoB. The interrelationships are particularly typical of early stages of CHD.
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PMID:[Plasminogen activator inhibitor and protein C: their relation to plasma lipids and lipo- and apoproteins in ischemic heart disease of different duration]. 239 63


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