Study on 50 patients (male: 12, female: 38), between the ages of 72 and 40, with hypertension (62% of patients), obesity (60%) in which abdominal obesity (78%) was carried out in Bach Mai Hospital during July 2000- March 2001. The results found that the lipemia disorder frequently occurred in patients with reduced glucose toleration according to the classification of Fredrichson (type IV). 69% patients with the reduced glucose toleration had a lipemia disorder accompanying with hypertension. The risk of hypertension among these patients was higher 6.7 times than this among patients without the lipemia disorder. 93% patients with the reduced glucose toleration and obesity had a lipemia disorder. This rate in the patients with abnormal obesity was 97%; 100% of patients with the reduced glucose toleration had signs of coronary insufficiency
Glucose ; Lipoprotein Lipase ; Blood Glucose

Acute Disease ; Adult ; Female ; Humans ; Lipoprotein(a) ; blood ; Male ; Middle Aged ; Organophosphate Poisoning ; Young Adult

Humans ; Coronary Artery Disease/therapy* ; Lipoprotein(a) ; Blood Component Removal ; Treatment Outcome

Lipoprotein lipase (LPL) is known to be attached to the luminal surface of vascular endothelial cells in a complex with membrane-bound heparan sulfate, and released into blood stream by heparin. LPL that catalyzes hydrolysis of triglyceride (TGL) on chylomicron and VLDL into two fatty acids and monoacylglycerol, is also implicated to participate in an enhancement of cholesterol uptake by arterial endothelial cells in vitro. But little is known about the LPL-mediated cholesterol uptake in physiological state. In this study, changes in blood lipid composition and levels of lipoproteins were determined after the injection of heparin in human. The level of LPL in plasma was increased from 0 to 11 mU/ml within 30-40 min post-heparin administration and decreased to the basal level within 2 h. The level of TGL in plasma decreased from 70 mg/dl to 20 mg/dl within 1 h and gradually increased to 80 mg/dl within 4 h. However the level of total cholesterol in plasma remained at 140 mg/dl during an experimental period of 4 h. Analysis of Lipoproteins in plasma by NaBr density gradient ultracentrifugation showed that the level of VLDL decreased from 50 mg/dl to 10 mg/dl within 1-2 h and returned to normal plasm level at 4 h. However there were no significant changes in the level of LDL and HDL. These results suggest that, at least, in normo-lipidemic subjects, increased free plasm LPL acts primarily on VLDL and failed to show any significant uptake of cholesterol-rich lipoproteins in human.
Adult ; Cholesterol/blood ; Heparin/pharmacology* ; Heparin/administration & dosage ; Human ; Immunoblotting ; Lipoprotein Lipase/blood* ; Lipoproteins/blood* ; Lipoproteins, HDL/blood ; Lipoproteins, LDL/blood ; Lipoproteins, VLDL/blood ; Triglycerides/blood

BACKGROUNG AND OBJECTIVES: Diet is the basic and principal therapeutic modality for hyperlipidemia. However, diet therapy alone showed variable responses in lowering lipid levels in different studies. This research is to prove the effect of diet and Apo E polymorphism on the variation of serum lipid profile in Korean males. MATERIALS AND METHODS: To evaluate the gene-diet interation, serum total cholesterol (Chol), triglycerides (TG), HDL-cholesterol and LDL-cholesterol (HDLc, LDLc), lipoprotein (a) (Lp (a)), and fasting blood glucose (FBS) were measured with Apo E genotyping in vegeterians (group A, n=154) and in healthy Korean male adults (group B, n=150) of similar mean age (50.1 vs. 49.3). RESULTS: Lipid profiles showed significantly lower levels in group A compared to group B (Chol 168.3+/-30.5 mg/dL vs. 181.3+/-33.4 mg/dL, p<0.001;TG 131.0+/-62.9 mg/dL vs. 149.4+/-76.7 mg/dL, p=0.023;HDLc 56.0+/-11.0 mg/dL vs. 56.9+/-11.5 mg/dL, p=0.509;LDLc 92.5+/-28.1 mg/dL vs 100.6+/-29.9 mg/dL, p=0.016;Lp (a) 22.1+/-14.6 mg/dL vs. 26.9+/-13.8 mg/dL, p=0.004;FBS 85.1+/-14.1 mg/dL vs. 102.7+/-16.6 mg/dL, p<0.001). The Apo E genotyping showed Epsilon3/3, 64.1%; Epsilon3/4, 20.7%;Epsilon2/3, 11.8%;Epsilon2/2, 1.3%;Epsilon4/4, 0.6% in the combined groups. The distribution was similar in both groups. Chol and LDLc were significantly (p<0.05) higher in Epsilon3/4 allele group compared to other allele groups among non-vegetarians. On the other hand, Chol and LDLc were significantly (p<0.01) lower in vegetarians compared to non-vegetarians only in Epsilon3/4 allele group. CONCLUSION: Vegetarian diet significantly lowered Chol, TG, LDLc, Lp (a) and FBS levels. Significant lipid lowering effect of vegetarian diet was noted in Apo E allele Epsilon3/4 group which had significantly higher Chol and LDLc levels without diet intervention. These data suggest that the influence of diet on serum lipid profiles differ according to apo E genotypes.
Adult ; Alleles ; Apolipoproteins E ; Blood Glucose ; Cholesterol ; Diet Therapy ; Diet* ; Diet, Vegetarian ; Fasting ; Genotype ; Hand ; Humans ; Hyperlipidemias ; Lipoprotein(a) ; Male* ; Triglycerides

We measured serum lipoprotein (a) [Lp (a)] concentrations in 304 uremic patients treated on predialysis, hemodialysis (HD) and continuous ambulatory peritoneal dialysis (CAPD), and compared them with those in 43 normal controls. The mean values were 46.1mg/dl in predialysis, 35.7mg/dl in HD, 54.7mg/dl in CAPD patients and 17.0mg/dl in controls, respectively. Serum Lp (a) levels were elevated both in the predialysis patients (P<0.001) and in the CAPD patients (P<0.001) compared with those in controls, and were also elevated in the CAPD patients (P<0.01) compared with HD patients. Serum Lp (a) levels tended to be higher in HD patients compared with controls, although these differences did not reach statistical significance. We observed statistically significant positive correlations of Lp (a) to serum levels of total cholesterol (TC) (r=0.279, P<0.01), LDL-cholesterol (r=0.335, P<0.01), and Apo (B) (r=0.352, P<0.01), and significant negative correlation of Lp (a) to serum level of albumin (r=-0.278, P<0.01) in 304 CRF patients. CAPD patients had a more atherogenic lipoprotein profile than did HD patients; besides significantly higher Lp (a) levels (P<0.01), total (P<0.001) and LDL (P<0.001) cholesterol, triglycerides (P<0.05), and apo (B) (P<0.001) were significantly elevated in comparison to HD patients. The marked elevation of serum Lp (a) in patients on CAPD may be due to increased hepatic synthesis as a consequence of the substantial amounts of plasma proteins lost in the dialysate. The increased serum concentrations of Lp (a) may contribute to the high risk for atherosclerosis in end stage renal disease, especially in patients treated by CAPD.
Atherosclerosis ; Blood Proteins ; Cholesterol ; Humans ; Kidney Failure, Chronic* ; Lipoprotein(a) ; Lipoproteins* ; Peritoneal Dialysis, Continuous Ambulatory ; Renal Dialysis ; Triglycerides

BACKGROUND: There are no agreement for abnormalities in serum lipid concentrations and lipoprotein(a)(Lp(a)) in patients with subclinical hypothyroidism. But there are no reports for consideration of postmenopausal state and hormone replacement therapy(HRT). Therefore, we analized serum Lp(a) and lipid concentrations in patients with subclinical hypothyroidism considering menopause and HRT and the correlation between serum Lp(a) level and thyroid stimulating hormone(TSH) concentration. METHODS: We undertook this study in 99 patients with subclinical hypothyroidism(TSH>5uIU/mL) and 297 age and sex matched normal control subjects. They had no abnormalities in liver and renal function, fasting blood glucose and medical and drug histories. We excluded who were recieving HRT. Serum free thyroxine, triiodothyronine , TSH were measured by radioimmune assay using commercial kits, and Lp(a), total cholesterol, TG and HDL by Latex and enzyme method, respectively. RESULTS: There were no significant differences of serum Lp(a), total cholesterol, LDL, TG, HDL concentrations in patients with subclinical hypthyroidism and control subjects, analyzing after dividing into men, premenopausal and postmenopausal women. In patiens with subclinical hypothyroidism, there was no correlation between serum Lp(a) and TSH concentraions(r=0.06, P>0.05). CONCLUSION: Considering menopause and HRT, there were no increase in serum Lp(a) and lipid concentrations in subclinical hypothyroidism. There was no correlation between serum Lp(a) and TSH concentration in patients with subclinical hypothyroidism.
Blood Glucose ; Cholesterol ; Cholesterol, LDL ; Fasting ; Female ; Humans ; Hyperlipidemias ; Hypothyroidism* ; Latex ; Lipoprotein(a)* ; Liver ; Male ; Menopause ; Thyroid Gland ; Thyrotropin ; Thyroxine ; Triiodothyronine

BACKGROUND: This study was performed to investigate the difference in high sensitivity C-reactive protein (hsCRP) and metabolic syndrome according to the fasting glucose level, especially between the groups of less than 100 mg/dL and 100-109 mg/dL, which were conventionally categorized into normal levels. METHODS: Those who underwent routine medical checkups aged above 20 (male, 3,221; female, 3,334) at a Health Promotion Center (Seoul, Korea) were divided into normal fasting glucose group I (glucose <100 mg/dL), normal fasting glucose group II (glucose, 100-109 mg/dL), impaired fasting glucose group, and diabetes mellitus group. The hsCRP, obesity index, blood pressure, total cholesterol, triglyceride, high density lipoprotein-cholesterol (HDL-C), low density lipoprotein-cholesterol (LDL-C) and lipoprotein(a) [Lp(a)] were compared among the groups. The hsCRP and the components of metabolic syndrome were compared. RESULTS: The hsCRP level, age, obesity index, blood pressure, total cholesterol and triglyceride significantly increased along with the increment in fasting glucose level in the 4 groups. The hsCRP had a positive correlation with the fasting glucose level, age, and systolic blood pressure, while it had a negative correlation with HDL-C. The metabolic syndrome was more common in the group with a higher level of glucose. CONCLUSIONS: The group with glucose level of less than 110 mg/dL, conventionally categorized into normal range, needs to be subdivided into a group of 100-109 mg/dL and a group of less than 100 mg/dL. The former group seems to require more efforts to have the glucose level to be maintained under the level of 100 mg/dL.
Blood Pressure ; C-Reactive Protein* ; Cholesterol ; Diabetes Mellitus ; Fasting* ; Female ; Glucose* ; Health Promotion ; Humans ; Lipoprotein(a) ; Obesity ; Reference Values ; Triglycerides

Menopause is the time at which menstruation stops in women. After menopause, women are more susceptible to some diseases, especially osteoporosis and cardiovascular disease. Vitamin D has a protective effect against osteoporosis by facilitating the absorption of calcium and affecting parathyroid hormone. Vitamin D also affects cardiovascular function by lowering the blood pressure, which affects the renin–angiotensin system and alters the low-density lipoprotein receptor activity. This paper discusses supplemental vitamin D in postmenopausal women with osteoporosis and cardiovascular disease.
Absorption ; Blood Pressure ; Calcium ; Cardiovascular Diseases ; Female ; Humans ; Menopause ; Menstruation ; Osteoporosis ; Parathyroid Hormone ; Receptors, Lipoprotein ; Vitamin D* ; Vitamins*

Lipoprotein(a), a complex formed by apolipoprotein(a), apo B-100 and lipids, is considered an independent, genetically determined, predictor of cardiovascular disease. It may have antifibrinolytic properties in view of its similarity to plasmmogen. To evaluate whether lipoprotein(a) may be a risk factors in patients with diabetic retinopathy or not, we measured the circulating serum level of lipoprotein(a) in each group classified by the severity of diabetic retinopathy and control group. The serum lipoprotein(a) level was higher in the diabetic patients than in the control group, and diabetic retinopathy, which was expressed by the grade of retinopathy in the worse eye, was correlated significantly with the duration of disease, and the serum level of lipoprotein(a) independently(P<0.05). There was no correlation between the diabetic retinopathy and the age at the time of diagnosis, systolic or diastolic blood pressure, or the serum levels of HbA(IC), cholesterol, triglyceride, and total lipid. We concluded that the lipoprotein(a) may play a role as one of the independent risk factors in diabetic retinopathy.
Apolipoprotein B-100 ; Apoprotein(a) ; Blood Pressure ; Cardiovascular Diseases ; Cholesterol ; Diabetic Retinopathy* ; Diagnosis ; Humans ; Lipoprotein(a)* ; Risk Factors ; Triglycerides