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<p><b>OBJECTIVE</b>To assess the association of single nucleotide polymorphisms of hsa-miR-196a2, hsa-miR-149, hsa-miR-146a, hsa-miR-499 with susceptibility to ischemic stroke.</p><p><b>METHODS</b>Taqman-PCR and DNA sequencing assays were employed to determine the genotypes of the 4 loci among 510 patients and 523 controls. And their association with the disease was assessed.</p><p><b>RESULTS</b>Analysis showed that smoking, diabetes, hypertension, BMI index and abnormal serum lipid metabolism were significantly associated with ischemic stroke, and that rs2910164 was significantly associated with the disease in codominant (CG vs. CC: P=0.002, OR=1.878, 95%CI=1.269-2.789), dominant (P=0.012, OR=1.325, 95%CI=1.110-1.580), recessive (P=0.008, OR=1.630, 95%CI=1.130-2.342) and allele (P=0.002, OR=1.449, 95%CI=1.210-1.731) genetic models. Stratified analysis further showed that the significant association only existed in population with smoking and hypertension. By contrast, no association was found between hsa-miR-196a2 rs11614913, hsa-miR-149 rs2292832 and hsa-miR-499 rs3746444 with the disease.</p><p><b>CONCLUSION</b>Our study indicated that smoking, diabetes, hypertension, fat and hyperlipidemia are risk factors for ischemic stroke. Hsa-miR-146a rs2910164 is significantly associated with the disease in those with smoking and hypertension in Dongyang region and may be involved in the process of the disease. The G allele G, GG and CG+GG genotypes of the locus may underlie the susceptibility to the disease in Dongyang region.</p>
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Aged , Female , Humans , Male , Middle Aged , Alleles , Case-Control Studies , China , Genetic Predisposition to Disease , Genotype , MicroRNAs , Genetics , Polymorphism, Single Nucleotide , Stroke , GeneticsABSTRACT
Objective To investigate the effects of rhubarb on the expression of glucocorticoids receptor (GR)and peripheral blood lymphocytes in burning-induced septic rats. Methods Sixty-six male healthy Sprague-Dawley(SD)rats were randomly divided into sham operated control group(n=18),sepsis model group(n=24) and rhubarb treatment group(n=24),each group was further randomly divided into 12,24 and 72 hours subgroups according to different time points. The model of scald sepsis was replicated by scald injury induced by boiling water at the rat back accounting for 30% total body surface area(Ⅲ grade of scald),and administration of endotoxin (5 mg/kg)into the peritoneal cavity 12 hours after scald injury. After the successful establishment of septic models, the rats in the rhubarb treatment group were immediately infused with 50 mg/kg rhubarb powder dissolved in 1 mL saline through a gastric tube,while the rats in sham operated control group and sepsis model group received saline by the same way as a substitute for rhubarb. The the binding capacity of GR of peripheral blood leucocyte and binding activity of GR of hepatocyte were analyzed by radiation ligands binding assay. The CD4+,CD8+as well as CD4+/CD8+ ratio in peripheral blood lymphocytes were detected by flow cytometer. Results The binding capacity of GR of peripheral blood leucocyte and binding activity of GR of hepatocyte were significantly decreased in a time-dependent manner in sepsis model group compared to those of the sham operated control group,while in the rhubarb treatment group they were increased in a time-dependent manner after interference of rhubarb, and they were higher than those in the model group at the same time points〔leukocyte GR binding capacity (locus/cell)at 12,24,72 hours :1 515.38±300.44,1 859.63±258.26,1 890.50±307.88 vs. 1 122.63±225.39, 1 008.88±150.41,724.38±91.19;hepatocyte GR binding capacity(fmol/mg):210.19±26.26,258.01±20.98, 283.38±38.21 vs. 153.11±30.07, 129.83±26.89, 94.08±14.30, all P<0.01〕. Compared with the sham operated control group,the CD4+ and CD8+ were decreased in various degrees at 12 hours and 24 hours in the septic group, at 24 hours the differences being statistically significant (P<0.01 and P<0.05). CD4+/CD8+ratios were decreased significantly at all time points,the differences were statistically significant at 24 hours and 72 hours(both P<0.01). The CD4+ T cell and CD4+/CD8+ ratio at all the time points were increased at various degrees in the rhubarb treatment group,and the differences from those in the sepsis model group at 24 hours and 72 hours were statistically significant (1.58±0.69, 1.56±0.49 vs. 1.02±0.41, 1.01±1.68, both P<0.01). Conclusion Rhubarb can modulate the binding capacity of GR of peripheral blood leucocyte and the binding activity of GR of hepatocyte,and via its influence on the number of peripheral leucocytes,the immune dysfunction in the sepsis processes is improved.
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ObjectiveTo study the effects of small-dose glucocorticoid (GC) on glucocorticoid receptor (GR) and cellular immune function in critical patients.MethodsForty ICU critical patients admitted in Shanghai Changzheng Hospital from March 2007 to March 2009 were enrolled in the study and were divided into GC group and non-GC group according to the use or absence of GC.Blood samples were collected at days 1,7 and 10 after GC treatment to detect GR binding affinity of mononuclear leukocytes (MNLs) and polymorphonuclear leukocytes (PMLs) in the peripheral blood and the CD4/CD8 ratio in the T lymphocytes.The method of GC use was that the hydrocortisone was given intravenously at a dose of 100 mg every eight hours.ResultsGR binding capacity of MNLs at day 1 and 7 showed no statistical difference between the GC and non-GC groups.GR binding capacity of MNLs in the GC group was lower at day 1 and was much lower at day 7 (P ＜ 0.05 ).However,in the non-GC group,it was lower at day 1,but showed significant improvement at day 7 ( P ＜ 0.05 ).The change of GR binding capacity of PMLs was similar to that of MNLs.There was no significant difference of CD4/CD8 ratio between the GC and non-GC group at day 1.The ratio of CD4/CD8 in the non-GC group was significantly higher than that in the GC group at day 10 (P ＜0.05).CD4/CD8 ratio in the GC group showed a slight reduction at day 10,with no significant difference from that at day 1.While,the non-GC group showed a significant increase of CD4/CD8 ratio at day 10 as compared with that at day 1 (P ＜ 0.05 ).ConclusionLow-dose GC plays some role in the negative feedback regulation of GR binding capacity of peripheral blood leukocytes and in the inhibition of cellular immune function.
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@#Objective To explore the effect of obstructive sleep apnea-hypopnoea syndrome(OSAHS)on coronary heart disease in the elder.Methods 27 aged coronary heart disease patients were selected and divided into non-OSAHS,OSAHS groups according sleep apnea-hypopnoea index(AHI).Their age,body mass index,the incidence of myocardial infarction,heart failure,arrhythmia were compared.Results There were significantly higher incidences of heart failure,arrhythmia in OSAHS group than in non-OSAHS group,as well as body mass index.Conclusion OSAHS may aggravate the coronary heart disease in elderly patients.
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In this study we made full use of the heart rate spectrum analysis to obtain the character parameters of heart rate variability related to EEG sleep phase information, and then we discarded the correlation between characteristics by employing Principal Component Analysis. Finally, by means of the decision tree based on Fisher rules, we established two full automatic models for identifying healthy people and sleep apnea hypopnea syndroma (SAHS) patients respectively. The result of experiments indicates that the model is accurate and robust.
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Female , Humans , Male , Decision Trees , Electrocardiography , Electroencephalography , Heart Rate , Physiology , Models, Biological , Polysomnography , Signal Processing, Computer-Assisted , Sleep , Physiology , Sleep Apnea Syndromes , Sleep StagesABSTRACT
Objective To analyze 137 cases of clinical invasive fungal infection (IFI), and to sum up clinical experiences in the treatment of early anti-fungal. Methods 137 patients with 91 males and 46 females, who suffered from invasive fungal infection in ICU from January 1, 2000 to June 30, 2006, were enrolled in this study. The age ranged from 17 to 82 years. Among 137 patients with IFI, the respective incidence of infection of Candida albicans, Candida glabirate, Candida tropicalis and Candida parapsilosis was 47.4%, 26.3%, 20.4% and 3.6%. The sputum, urine, blood and other excreta were collected for examination three days after admission and then every three days. Results Out of the 137 patients, 42 patients were complicated with hemorrhage (30.7%), 53 patients developed candida rash in the chest, abdomen and extremity (38.7%), and 49 patients developed organ dysfunction (35.8%). The chest films revealed that infiltration caused by IFI mainly occurred in the apex of lung in some patients. 137 patients were treated with fluconazole at first, and among them, 64 patients were cured. The cure rate was 46.7%. 39 patients out of 61 patients treated with Amphotericin B(AmB) or lipid AmB were cured. The cure rate was 63.9%. 11 patients were treated with voriconazole and 6 patients were cured. The cure rate was 54.5%. 28 patients failed to respond to the above therapy and died.The mortality was 20.4%. Conclusion The clinical symptons of IFI included hemorrhage, candida rash, organ dysfunction, and infiltration in apex of lung. Fluconazole and amphotericin B(AmB) or lipid AmB still have a good curative effect on invasive fungal infection.
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Warfighter physiological status monitor (WPSM) is a new device for noninvasive biomedical measurements for soldier vital signs in operational environments. This paper gives an introduction to the WPSM and analyses the key technologies to design WPSM. The wearable technology can provide a systematic way of monitoring the vital signs of humans in a unobstrusive manner. In this paper the wearable technology is used to design WPSM to fulfill non-instrusive vital signs detection.