Analysis on the gender-specific risk factors of new-onset cerebral hemorrhage / 中华心血管病杂志

Objective@#To explore the gender-specific risk factors of new-onset cerebral hemorrhage.@*Methods@#In this prospective cohort study,a total of 98 961 participants((51.1±12.6)years old), who underwent the 2006 to 2007 physical examination and met the inclusion criteria, were enrolled from the Kailuanstudy cohort. There were 78 908 (79.7%) male,and 20 053 (20.3%) female.The incidence of cerebral hemorrhage was observed once per year until December 31, 2016.The difference on the incidence of cerebral hemorrhage between male and female was compared. Multivariate Cox regression analysis was applied to analyze therisk factors of cerebral hemorrhage events among different genders.@*Results@#The participants were followed up for(10.00±0.73) years,and 860 cerebral hemorrhage events were recorded during follow up. The incidence of cerebral hemorrhage in the population was 86.90/10 million person years (standardized incidence rate of 47.85/10 million person years). The incidence of cerebral hemorrhage was significantly higher in male (49.61/10 million person years) than in female (34.07/10 million person years, P<0.05). Multivariate Cox regression analysis showed that 45-59 years old, ≥ 60 years old, diabetes,and waist-hip ratio were more strongly related to new-onset of cerebral hemorrhage events in female than in male, and the hazard ratios(95%CI) were 2.33 (1.23-4.43) ,2.71 (1.30-5.66) ,2.16 (1.24-3.74) and 8.79 (1.42-54.32) in female versus 1.55 (1.21-1.97) ,2.16 (1.68-2.78) ,1.19 (0.93-1.53) and 3.21 (1.09-9.41) in male, respectively. The risk of male cerebral hemorrhage increased by 29% (HR=1.29, 95%CI 1.19-1.40) in male and 24% (HR=1.24, 95%CI 1.20-1.28) in female,when the systolic blood pressure increased 10 mmHg (1 mmHg=0.133 kPa).@*Conclusions@#The incidence of cerebral hemorrhage is higher in male than in female in this cohort.The association between systolic blood pressure and cerebral hemorrhage is stronger in male than that in female.The associations between age, waist-hip ratio, diabetes and cerebral hemorrhage are stronger in female than in male.@*Trial Registration@#Chinese Clinical Trail Registry, ChiCTR-TNC-11001489.

Molecular characteristics of human-derived non-O157 Shiga toxin-producing Escherichia coli strains isolated in five regions of China / 中华微生物学和免疫学杂志

Objective To understand the molecular characteristics of human-derived non-O157 Shiga toxin-producing Escherichia coil (STEC) strains circulating in five regions of China.Methods Twenty-seven non-O157 STEC strains isolated in five geographic regions were investigated by serotyping, stx1/stx2 subtyping and PCR screening for adhesion and other virulence genes.A multilocus sequence typing (MLST) scheme provided by E.coil MLST database were performed to amplify and sequence seven housekeeping genes (adk, icd, fumC, rgyrB, purA, mdh and recA) in those strains.Results Twenty-seven non-O157 STEC strains were typed into 16 O∶H serotypes.Among those strains, 11 harbored stx1a, 12 harbored stx1c, two harbored stx2e and the other three strains respectively harbored stx1a+stx2b, stx2d and stx2g.Positive rates of eae, efa1, saa, paa, toxB, astA and ehxA genes were 18.5%, 18.5%, 29.6%, 22.2%, 11.1%, 11.1% and 25.9%, respectively.The 27 strains were typed into 16 different sequence types (STs) based upon MLST.Conclusion Human-derived non-O157 STEC strains circulating in five regions of China are heterogeneous in their serotypes, stx1/stx2 subtypes and virulence gene profiles.

Relationship between collateral circulation and cardiac function recovery in patients receiving percutaneous coronary intervention for a single left anterior descending artery / 南方医科大学学报

<p><b>OBJECTIVE</b>To explore the relationship between coronary collateral circulation following percutaneous coronary intervention (PCI) for a single left anterior descending artery and the recovery of cardiac function.</p><p><b>METHODS</b>A total of 625 patients with coronary heart disease were retrospectively analyzed, who received selective coronary angiography demonstrating lesions involving a single left anterior descending artery and underwent stent placement between January, 2010 and December, 2012. According to Rentrop's classification, the patients were divided into group A (n=280) with Rentrop grades 1-3 and group B (n=325) with Rentrop grade 0. Group A were further divided into 3 subgroups according to the source of collateral circulation, namely group A1 (n=200) with contralateral collateral circulation, group A2 (n=44) with contralateral+ ipsilateral collateral circulation, and group A3 (n=36) with ipsilateral collateral circulation. The outcomes of cardiac function recovery were compared between groups A and B and between the 3 subgroups in group A.</p><p><b>RESULTS</b>Compared with patients without collateral circulation, patients with collateral coronary circulation showed greater left ventricular ejection fraction increment and reduction in brain natriuretic peptide and red cell volume distribution width with also lower expansion left ventricular end-diastolic volume. Among the 3 subgroups in group A, cardiac function improvement was the most obvious in patients with contralateral+ ipsilateral collateral circulation (group A2) followed by those in group A3, and was the worst in group A1.</p><p><b>CONCLUSION</b>The presence of collateral coronary circulation promotes cardiac function recovery in patients receiving PCI for lesions involving a single left anterior descending artery. Patients with contralateral+ipsilateral collateral circulation have the best cardiac function improvement followed by those with contralateral collateral circulation.</p>

Rational Daily Administration Times of Yinchenhao Decoction in Rats with Jaundice Based on PD/PK / 中草药·英文版

Objective To study the rational daily administration times of Yinchenhao Decoction (YCHD) when it was used to treat experimental jaundice in rats based on pharmacodynamics/pharmacokinetics model.MethodsRats were modeled by 4％ 1-naphthylisothiocyanate (75 mg/kg) for 48 h,then YCHD was drenched with doses of 0.324 g/kg (extract,calculated with the clinical dosage) once,0.162 g/kg twice,and 0.108 g/kg thrice a day,respectively.The total bile and the flow rate of bile were observed after the first administration; Blood samples collected from the orbital sinus at different intervals were used to investigate the levels of liver enzymes (ALT and AST) and bilimbins (TBIL and DBIL),and determine the concentration of 6,7-dimethoxycoumarin (DME) in the plasma using UPLC at the same time,then we obtained the time-effect and time-dose curves.The rational daily administration times of YCHD when treating experimental jaundice were determined based on the comprehensive analysis of time-effect and time-concentration relationships.ResultsWithin 10 h the total bile of rats which were administered once daily (G1) was I.65 and 1.33 times higher than that of twice and thrice (G2 and G3) a day,respectively,and the four biochemical indexes (TBIL,ALT,DBIL,and AST) of Gl decreased faster than those of G2 and G3 (P ＜ 0.05).On the other hand,the blood drug level of DME when administrated once daily could maintain at a higher level for a longer time,and its Cmax and AUC0→t were higher than those of G2 and G3,which might be the main reason why its effect was the most significant.ConclusionIt is more appropriate to administrate once daily when YCHD is used to treat jaundice.

Primary research on daily administration times of rhubarb used to treat experimental jaundice in rats / 中国中药杂志

<p><b>OBJECTIVE</b>To study the rational daily administration times of rhubarb when it is used to treat experimental jaundice in rats, at the same time, validate the accuracy and feasibility of the method which was previously established to research the rational daily administration times of rhubarb (PD-PK method), and consummate it.</p><p><b>METHOD</b>After the rats were modeled by 4% ANIT (75 mg x kg(-1)) for two days, rhubarb extraction was drenched 3.6 g x kg(-1) once a day, 1.8 g x kg(-1) twice a day and 1.2 g x kg(-1) three times a day, respectively. Then the total bile and the flow rate of bile were observed. Blood was collected from the veins behind the eye sockets after different intervals and was used to investigate the biochemical indexes of the blood serum, such as TBIL, ALT, ALP, AST and GGT, and to determine the concentration of rheic acid in the blood plasma, then the time-effect curve and time-dose curve were obtained. The rational daily administration times of rhubarb was determined when it was used to treat experimental jaundice based on the comprehend analysis of time-effect and time-concentration relationships.</p><p><b>RESULT</b>Compared with the groups which were administered once a day and three times a day, the total bile within 8 h of the rats which were administered twice a day was 1.56 and 1.7 times higher, respectively, while the TBIL was 23%, 22%, and ALT was 86%, 65% of the other two, ALP was 50%, 71% of the other two, respectively. With administrated twice a day, the blood concentration of rheic acid could maintain a high level for a longer time, which maybe the main reason for its effect.</p><p><b>CONCLUSION</b>The method based on pharmacodynamics and pharmacokinetics is scientific and feasible to study the rational daily administration times of traditional Chinese medicine. Rhubarb is better to administrate two times a day to treat jaundice.</p>

Comparison of microcalorimetric fingerprint profiles of Lonicerae japonicae Flos and Lonicerae Flos / 药学学报

To compare the microcalorimetric fingerprint profiles of Lonicerae japonicae Flos (Lj.F) and Lonicerae Flos (L.F), microcalormietry was applied to find the heat change regularity of Bacillus shigae (B. shigae) metabolism affected by Lj.F and L.F (we choose Lonicera macranthoides Hand.-Mazz in this paper) with different concentrations. The thermogenic curves and thermodynamics parameters were investigated as evaluation index, and then the date of experiment was studied by similarity analysis. All the results indicated that the Lj.F and Lonicera macranthoides Hand.-Mazz (L.m.H-M) significantly impacted the microbial growth and had good similarity in its inhibitory activities. The combination approach of chemical analysis with bioassay was developed and employed to ensure the safety and efficacy of Chinese herbal medicines.