Objective To establish abdominal fat accumulation with hyperuricemia and hypercholesterolemia quail model fed with high fat diet. And then to investigate the pathological characteristics of this quail model. Methods ...Objective To establish abdominal fat accumulation with hyperuricemia and hypercholesterolemia quail model fed with high fat diet. And then to investigate the pathological characteristics of this quail model. Methods Thirty Longcheng quails were randomly divided into two groups： control group and model group （n=15）. The control group quails were fed with normal diet and model group quails were fed with high fat diet for 14 days. After a 12-hour overnight fast, liver and abdominal fat at euthanasia as well as serum were collected. The levels of serum uric acid, total cholesterol, high density lipoprotein cholesterol （HDL-C）, low density lipoprotein cholesterol （LDL-C）, triglyceride, free fatty acid （FFA）, and blood glucose were assayed. The activity changes of adenosine deaminase （ADA）, xanthine oxidase （XOD）, lipoprotein lipase （LPL）, hepatic lipase （HL）, and fatty acid synthetase （FAS） were analyzed. Results Compared with control group, the abdominal fat content （0.74±0.63 vs. 1.36±0.65 g, P〈0.05） and abdominal fat index （0.44%±0.30% vs. 0.85%±0.30%, P〈0.01） as well as live lipid index （3.61%±0.65% vs. 11.33%±2.14%, P〈0.01） in model group significantly increased; the levels of serum uric acid （210.61±94,76 vs. 304.25±141.94 /amol/L, P〈0.05）, total cholesterol （4.20±0.51 vs. 20.10±11.25 mmol/L, P〈0.01）, LDL-C （1.16±0.29 vs. 10.78±6.48 mmol/L, P〈0.01）, and FFA （0.39±0.14 vs. 0.55±0.15 mmol/L, P〈0.01） in model group significantly increased; HDL-C （5.85±0.95 vs. 4.14±2.03 mmol/L, P〈0.05） significantly decreased; the levels of triglyceride and blood glucose had no significant changes （P〉0.05）; the activities of ADA （9.71±3.05 vs. 17.19±5.10 U/ml, P〈0.01） and XOD （10.58±6,88 vs. 19.22＋9.44 U/L, P〈0.01） in model group significantly increased; and FAS, LPL, HL had no significant changes （P〉0.05）. Conclusions High fat diet can induce abdominal fat accumulation with hyperuricemia and hypercholesterolemia quail model. The changes of uric acid and lipid metabolic enzyme activities may he the pathological mechanism of abdominal fat accumulation with hyperuricemia and hypercholesterolemia.展开更多
Simvastatin,a 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor,is widely prescribed to patients with hypercholesteremia and its muscular toxicity has been widely reported.The metabolism of simvastatin depends...Simvastatin,a 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor,is widely prescribed to patients with hypercholesteremia and its muscular toxicity has been widely reported.The metabolism of simvastatin depends on the enzymic activity of cytochrome P450 3A4 （CYP3A4） and inhibitors of CYP3A4 can result in clinical events by interacting with simvastatin.Diltiazem is a moderate inhibitor of CYP3A4,which is known to increase the serum concentration of simvastatin.Here we report a patient with unrecognized hypothyroidism who had been stable for more than one year on low-dose simvastatin therapy of hypercholesteremia and rhabdomyolysis occurred with the addition of diltiazem.This is one of scanty reports of rhabdomyolysis induced by simvastatindiltiazem drug interaction,especially in hypothyroid patient.This case reminds the clinicians that although diltiazem as a moderate CYP3A4 inhibitor can be used cautiously with small doses of CYP3A4-dependent statius （eg,simvastatin）,these two commonly used drugs should be avoided in hypothyroid patient.展开更多
Objective To investigate the prevalence of abnormity of blood lipid and associated factors in healthy population in Beijing. Methods Totally, 38 462 individuals who received health examination were enrolled in our stu...Objective To investigate the prevalence of abnormity of blood lipid and associated factors in healthy population in Beijing. Methods Totally, 38 462 individuals who received health examination were enrolled in our study. We divided them into eight groups according to their ages. The levels of serum total cholesterol, triglyceride, high density lipoprotein cholesterol, and low density lipoprotein cholesterol were tested, and the relationship of blood lipid abnormity with body mass index (BMI) and fasting blood glucose was analyzed. Results The incidences of hypercholesterolemia, hyperglyceridemia, low high-density lipoprotein cholesterolemia, and hyper low-density lipoprotein cholesterolemia presented increasing trend in this population. The incidence rate of abnormity of blood lipid in health examination population increased with BMI increase. The incidence of abnormity of blood lipid in overweight and obesity population was significantly higher than that in low weight and normal weight populations (P<0.05). Meanwhile, the trend of abnormal blood lipid incidence coincided with that of abnormal fasting blood glucose. Conclusions The prevalence of overweight, obesity, and abnormity of blood lipid in Beijing presents increasing trend. The incidence of abnormity of blood lipid increases with BMI increase, in coincidence with that of fasting blood glucose.展开更多
Objective Global cardiovascular risk assessment has been incorporated into current Chinese guidelines for the management of hypertension and hypercholesterolemia. The aim of our study is to determine the distribution ...Objective Global cardiovascular risk assessment has been incorporated into current Chinese guidelines for the management of hypertension and hypercholesterolemia. The aim of our study is to determine the distribution of 10-year risk for ischemic cardiovascular disease （ICVD） among middle-aged Chinese adults, and to evaluate the usefulness of global risk assessment tools in the primary prevention of ICVD in Chinese population.Methods Simplified prediction tools derived from the USA-PRC Collaborative Study of Cardiovascular Epidemiology cohort were applied to the Chinese Health Examination Database （CHED） 2008. 10-year risk for ICVD was estimated in 461 157 ICVD-free subjects （264 432 male and 196 725 female） aged 35 to 59 years. Results Among the male subjects, 82.4% had a 10-year risk for ICVD of 〈5%, 14.4% of 5% to 12.1% and 3.4 of≥ 12.2%, and in female subjects, 86.7% had a 10-year risk for ICVD of 〈5%, 12.1% of 5% to 12.0% and 1.2% of ≥ 12.1%. All subjects with predicted high level ICVD risk （≥ 12.2% in male or ≥ 12.1% in female） had either remarkably elevated （≥ 160 mmHg） blood pressure, significantly increased （≥ 6.22 mml/L） total serum cholesterol or diabetes.Conclusion Using the currently recommended prediction tools, only very small proportions of middle-aged Chinese men and women who were free of ICVD would be classified into high level risk group. These prediction tools are unlikely to help for the medical intervention decision making in Chinese adult patients with hypertension and/or hypercholesterolemia展开更多
基金Supported by National Nature Science Foundation of China (30472282)Beijing Natural Science Foundation (7052036)Major State Basic Research Development Program of China (973 Program, 2007CB512605)
文摘Objective To establish abdominal fat accumulation with hyperuricemia and hypercholesterolemia quail model fed with high fat diet. And then to investigate the pathological characteristics of this quail model. Methods Thirty Longcheng quails were randomly divided into two groups： control group and model group （n=15）. The control group quails were fed with normal diet and model group quails were fed with high fat diet for 14 days. After a 12-hour overnight fast, liver and abdominal fat at euthanasia as well as serum were collected. The levels of serum uric acid, total cholesterol, high density lipoprotein cholesterol （HDL-C）, low density lipoprotein cholesterol （LDL-C）, triglyceride, free fatty acid （FFA）, and blood glucose were assayed. The activity changes of adenosine deaminase （ADA）, xanthine oxidase （XOD）, lipoprotein lipase （LPL）, hepatic lipase （HL）, and fatty acid synthetase （FAS） were analyzed. Results Compared with control group, the abdominal fat content （0.74±0.63 vs. 1.36±0.65 g, P〈0.05） and abdominal fat index （0.44%±0.30% vs. 0.85%±0.30%, P〈0.01） as well as live lipid index （3.61%±0.65% vs. 11.33%±2.14%, P〈0.01） in model group significantly increased; the levels of serum uric acid （210.61±94,76 vs. 304.25±141.94 /amol/L, P〈0.05）, total cholesterol （4.20±0.51 vs. 20.10±11.25 mmol/L, P〈0.01）, LDL-C （1.16±0.29 vs. 10.78±6.48 mmol/L, P〈0.01）, and FFA （0.39±0.14 vs. 0.55±0.15 mmol/L, P〈0.01） in model group significantly increased; HDL-C （5.85±0.95 vs. 4.14±2.03 mmol/L, P〈0.05） significantly decreased; the levels of triglyceride and blood glucose had no significant changes （P〉0.05）; the activities of ADA （9.71±3.05 vs. 17.19±5.10 U/ml, P〈0.01） and XOD （10.58±6,88 vs. 19.22＋9.44 U/L, P〈0.01） in model group significantly increased; and FAS, LPL, HL had no significant changes （P〉0.05）. Conclusions High fat diet can induce abdominal fat accumulation with hyperuricemia and hypercholesterolemia quail model. The changes of uric acid and lipid metabolic enzyme activities may he the pathological mechanism of abdominal fat accumulation with hyperuricemia and hypercholesterolemia.
文摘Simvastatin,a 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor,is widely prescribed to patients with hypercholesteremia and its muscular toxicity has been widely reported.The metabolism of simvastatin depends on the enzymic activity of cytochrome P450 3A4 （CYP3A4） and inhibitors of CYP3A4 can result in clinical events by interacting with simvastatin.Diltiazem is a moderate inhibitor of CYP3A4,which is known to increase the serum concentration of simvastatin.Here we report a patient with unrecognized hypothyroidism who had been stable for more than one year on low-dose simvastatin therapy of hypercholesteremia and rhabdomyolysis occurred with the addition of diltiazem.This is one of scanty reports of rhabdomyolysis induced by simvastatindiltiazem drug interaction,especially in hypothyroid patient.This case reminds the clinicians that although diltiazem as a moderate CYP3A4 inhibitor can be used cautiously with small doses of CYP3A4-dependent statius （eg,simvastatin）,these two commonly used drugs should be avoided in hypothyroid patient.
基金Sponsored by grant of Young Scientist of PUMC Hospital (200577A)
文摘Objective To investigate the prevalence of abnormity of blood lipid and associated factors in healthy population in Beijing. Methods Totally, 38 462 individuals who received health examination were enrolled in our study. We divided them into eight groups according to their ages. The levels of serum total cholesterol, triglyceride, high density lipoprotein cholesterol, and low density lipoprotein cholesterol were tested, and the relationship of blood lipid abnormity with body mass index (BMI) and fasting blood glucose was analyzed. Results The incidences of hypercholesterolemia, hyperglyceridemia, low high-density lipoprotein cholesterolemia, and hyper low-density lipoprotein cholesterolemia presented increasing trend in this population. The incidence rate of abnormity of blood lipid in health examination population increased with BMI increase. The incidence of abnormity of blood lipid in overweight and obesity population was significantly higher than that in low weight and normal weight populations (P<0.05). Meanwhile, the trend of abnormal blood lipid incidence coincided with that of abnormal fasting blood glucose. Conclusions The prevalence of overweight, obesity, and abnormity of blood lipid in Beijing presents increasing trend. The incidence of abnormity of blood lipid increases with BMI increase, in coincidence with that of fasting blood glucose.
文摘Objective Global cardiovascular risk assessment has been incorporated into current Chinese guidelines for the management of hypertension and hypercholesterolemia. The aim of our study is to determine the distribution of 10-year risk for ischemic cardiovascular disease （ICVD） among middle-aged Chinese adults, and to evaluate the usefulness of global risk assessment tools in the primary prevention of ICVD in Chinese population.Methods Simplified prediction tools derived from the USA-PRC Collaborative Study of Cardiovascular Epidemiology cohort were applied to the Chinese Health Examination Database （CHED） 2008. 10-year risk for ICVD was estimated in 461 157 ICVD-free subjects （264 432 male and 196 725 female） aged 35 to 59 years. Results Among the male subjects, 82.4% had a 10-year risk for ICVD of 〈5%, 14.4% of 5% to 12.1% and 3.4 of≥ 12.2%, and in female subjects, 86.7% had a 10-year risk for ICVD of 〈5%, 12.1% of 5% to 12.0% and 1.2% of ≥ 12.1%. All subjects with predicted high level ICVD risk （≥ 12.2% in male or ≥ 12.1% in female） had either remarkably elevated （≥ 160 mmHg） blood pressure, significantly increased （≥ 6.22 mml/L） total serum cholesterol or diabetes.Conclusion Using the currently recommended prediction tools, only very small proportions of middle-aged Chinese men and women who were free of ICVD would be classified into high level risk group. These prediction tools are unlikely to help for the medical intervention decision making in Chinese adult patients with hypertension and/or hypercholesterolemia
