Objective To investigate the association between red blood cell distribution width (RDW) level and the change of cardiac function in patients with chronic heart failure (CHF) and explore its possible mechanism by studying the correlation between RDW and left ventricular ejection fraction (LVEF),left ventricular end-diastolic dimension (LVEDD),and high-sensitivity C-reactive protein (hsCRP),and uric acid(UA) in patients with chronic heart failure.Methods Two hundred and eighty patients were included in our study.Each patient received the examinations of echocardiography,electrocar diogram (ECG),blood routine,and blood biochemistry.According to the different LVEF,LVEDD and RDW,the patients were divided into groups A,B,C,and D,respectively.The groups were compared with each other.Results According to the different LVEF,from group A to group D,with a progressive decrease in LVEF,RDW level were increased gradually [(13.48 ± 0.85) ％,(14.10 ± 1.46) ％,(14.59 ±1.59)％,(14.75±1.42)％,F =12.698,P ＜0.01].There was significant difference among the four groups (P ＜0.01).RDW level correlated inversely with LVEF(r =-0.538,P ＜0.01).According to the different LVEDD,from group A to group D,with a progressive increase in LVEDD,RDW level increased gradually [(13.53 ±0.91)％,(14.12±1.42)％,(14.60±1.68)％,(14.76±1.39)％,F =12.276,P ＜0.01].There was significant difference among the four groups (P ＜0.01).RDW level correlated positively with LVEDD (r =0.343,P ＜0.01).In chronic heart failure patients,there were significant linear correlation between RDW and hs-CRP,LgUA (r =0.486,0.513,P ＜0.05).Conclusions RDW correlated with the change of cardiac function in patients with chronic heart failure.With a progressive decrease in LVEF and a progressive increase in LVEDD,RDW level increased gradually.RDW had a strong correlation with hs-CRP,LgUA.This indicates that RDW level increase may be related to the inflammation and oxidative reaction in patients with chronic heart failure.

Mandelic acid(MA). the hydrolysate of a compound extracted from the leaves of prunus Persica B, possesses a strong spermicidal effect in vitro. In this experiment. the International Planned Parenthood Federation screening method for spermicides was used. Dilutions of MA, between 0.8mg/ml and 3.3mg/ml, totally immobilized human spermatozoa in less than 1 min. When the lowest spermicidal concentrotions of MA and boric acid against human spermatozoa were compared, it was found that MA was 40 times more potent than boric acid.

Cleft Lip ; therapy ; Cleft Palate ; therapy ; Humans

Natamycin is a polyene macrolide antifungal antibiotic ,which is wide ly used in the food industry in order to prevent mould contamination .Biosynthe s is gene cluster of natamycin is discovered by the overall of progress in molecul ar biology of natamycin, including 16 open reading frames which includes the gen e for 26-member ring formation of natamycin (pimS0-pimS4 ) and the modifying gene s, and the function of the protein including polyketide synthases(PKSs)、PimD、P imJ、PimK were studied

Objective To explore whether childhood abuse experiences predict higher levels of depression and lower levels of self-esteem for graduate students and examine the mediating role of social support between childhood abuse and mental health.Methods A sample of 907 graduate students were investigated with the Childhood Trauma Questionnaire (CTQ-SF),Perceived Social Support Scale (PSSS),Self-esteem Scale (SES) and Center for Epidemiological Survey Scale (CESD).Results The scores of childhood abuse,social support,self-esteem,and depression of graduate students were (33.88±9.35),(68.31±12.01),(36.62±4.80) and (35.85± 9.20).Childhood abuse was negatively correlated with self-esteem (r=-0.32,P＜0.01),but positively correlated with depression (r=0.28,P＜0.01),and negatively correlated with social support (r=-0.44,P＜0.01).Social support was positively correlated with self-esteem (r=0.39,P＜0.01),and negatively correlated with depression (r=-0.41,P ＜0.01).Examining the mediation model indicated that social support had a partial mediation effects(42％) on the relationship between childhood abuse and self-esteem,and social support had a partial mediation effects(54％) on the relationship between childhood abuse and depression.Conclusions The childhood abuse not only affects the graduate student's self-esteem and depression directly,but also can take the same effect by social support indirectly.

Warfarin is one of the most widely used anticoagulants in clinical setting.There are great interindividual differences in both therapeutic efficacy and dose requirement,which greatly limits its application in clinic.This article summarizes the influence of genetic factors on interindividual and interethnic differences of warfarin,providing sufficient guidance for personalized medicine.

Objective To observe the chronological and spatial expression of fibronectin(Fn)and TGF-?RⅡ in developing mouse glomeruli.Methods The expressions of Fn and TGF-?RⅡ were examined by immunohistochemical and stereological method in embryos(including fetal age of 12,14,16 and 18d)and postnatal mouse kidneys(including the age of 1,3,7,14,21,28 and 42d).Results Immunohistochemical results showed that at fetal age of 14d,Fn was stained in S-shaped corpuscles,but not stained in the comma-shaped corpuscles.After fetal age 16d,Fn was expressed in all stages of glomeruli except the comma-shaped corpuscles.TGF-?RⅡ was stained in all stages of glomeruli from fetal age 14d.Fn and TGF-?RⅡ were localized respectively in basement membrane and cell plasma of glomeruli.Stereological analysis showed that the expression of Fn was increased gradually in all stages of glomeruli with renal development,except in the comma-shaped corpuscles;also,the expression of TGF-?RⅡ increased gradually in all stages of glomeruli with renal development.Conclusion The expressions of Fn and TGF-?RⅡ in embryonic and postnatal mouse kidney show chronological and spatial sequence,implying that they might play a role in the development and maturation of renal glomeruli of mouse.

Objective To investigate the role of neuro-specific DNA repair gene Nbn in mouse hippocampus development by observing the morphological differences in Nbn-CNS-Del and Nbn-CNS-Ctr mice.Methods Serial sections and stereology were used to quantitatively analyze the development of mouse hippocampus on postnatal day 7,14 and 21.Results Compared with that of the control group,the hippocampus development of Nbn-CNS-Del mice lagged behind.In Nbn-CNS-Del mice,on day 21,the profile area of pyramidal layer of hippocampus and granular layer of dentate gyrus decreased(P

Objective To observe the chronological and spatial expressions of transforming growth factor-? receptor Ⅱ(TGF-?RⅡ) and fibronectin(Fn) in uriniferous tubules of mouse kidney and investigate the correlation of TGF-?RⅡ and Fn with development of uriniferous tubules.Methods The expressions and content changes of TGF-?RⅡ and Fn were examined by immunohistochemistry and stereological method in mouse kidneys on embryonic days 12,14,16 and 18 and postnatal days 1,3,7,14,21,28 and 42.Results The expression of TGF-?RⅡ was found in all stages of renal tubules and collecting ducts and increased gradually with the kidney development;however,the expressions were obvious in all stages of proximal tubules and collecting ducts,while little was observed in all stages of distal tubules.The expression of Fn was detected in all stages of renal tubules and collecting ducts and also increased gradually with the kidney development.Conclusion TGF-?RⅡ and Fn might play an important role in the development and maturation of uriniferous tubules of mouse kidney.

Objective To study cell proliferation and apoptosis of renal corpuscle in normal developing mouse.Methods PCNA immunohistochemisty method,terminal deoxynucleotidyl transferase mediated dUTP-biotin nick endlabeling(TUNEL staining method)and light,electron microscopy were used to observe proliferation and apoptosis within corpuscle at different stages of development.Results Nearly all cells in Ⅰ and Ⅱ stages had nuclear PCNA immunolabeling.The number of PCNA immunolabeling cells during Ⅲ and Ⅳ stages was gradually decreased,and to less in Ⅴ stage.TUNEL positive cells could be easily observed before birth and identified in Ⅲ and Ⅳ stages.Electron microscope revealed that the mitotic activity was observed in all cells of Ⅰ and Ⅱ stages renal corpuscles.The mitotic phases of endothelial cells and podocytes could be seen in Ⅲ stage,but only endothelial mitotic activities in Ⅳ stage of renal corpuscle.Apoptotic activities of endothelial cell and Bowman's parietal cell were noted,predominantly in Ⅲ and Ⅳ stages.Conclusion Proliferation and apoptosis exist universally in the course of developing renal corpuscle,and supervise and control the regular development of renal corpuscle cooperatively.