Protective Effect of Procyanidin B2 on Acute Liver Injury Induced by Aflatoxin B in Rats / 生物医学与环境科学（英文）

Objective@#This study aimed to explore the protective effect of procyanidin B2 (PCB2) on acute liver injury induced by aflatoxin B (AFB ) in rats.@*Methods@#Forty Sprague Dawley rats were randomly divided into control, AFB , AFB + PCB2, and PCB2 groups. The latter two groups were administrated PCB2 intragastrically (30 mg/kg body weight) for 7 d, whereas the control and AFB groups were given the same dose of double distilled water intragastrically. On the sixth day of treatment, the AFB and AFB + PCB2 groups were intraperitoneally injected with AFB (2 mg/kg). The control and PCB2 groups were intraperitoneally administered the same dose of dimethyl sulfoxide (DMSO). On the eighth day, all rats were euthanized: serum and liver tissue were isolated for further examination. Hepatic histological features were assessed by hematoxylin and eosin-stained sections. Weight, organ coefficient (liver, spleen, and kidney), liver function (serum alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, total bilirubin, and direct bilirubin), oxidative index (catalase, glutathione, superoxide dismutase, malondialdehyde, and 8-hydroxy-2'-deoxyguanosine), inflammation factor [hepatic interleukin-6 (IL-6) mRNA expression and serum IL-6], and bcl-2/bax ratio were measured.@*Results@#AFB significantly caused hepatic histopathological damage, abnormal liver function, oxidative stress, inflammation, and bcl-2/bax ratio reduction compared with DMSO-treated controls. Our results indicate that PCB2 treatment can partially reverse the adverse liver conditions induced by AFB .@*Conclusion@#Our findings indicate that PCB2 exhibits a protective effect on acute liver injury induced by AFB .

The Q value of cornea in adults with myopia ZHAO / 眼科

Objective To observe the distribution of cornea Q value in adult myopia,and its relationship with age,sex,eye and refraction.Design Prospective case series.Participants Consecutive 510 patients (1020 eyes) of myopia of adults.Methods Cornea Q values were obtained with OrbscanⅡz Anterior Segment Analysis System in all subjects of adult myopia.Normal distribution test of Q value and correlation analysis with sphere,cylinder,sex,and age were performed.Main Outcome Measures Q value of cornea,corre- lation coefficient.Results In 1020 eyes of adult myopia,the mean Q value was-0.27?0.16 (range from-0.86 to 0.25) with near nor- mal distribution.The difference of Q value between right eyes and left eye was not statistically significant (P=0.675).The Q value be- tween male (-0.26?0.15) and female(-0.27?0.17) was not statistically difference(P=0.697).No significant relation was found Q value with either sphere (r=0.057,P=0.068) or cylinder (r=0.044,P=0.156).Mean Q value of below 20 years old was maximal,-0.24,while over 40 years old was minimal,-0.36,and the difference were statistically significant (P=0.000).Conclusions Q value of cornea has negative shift with the increase of age,especially in over 40 years old.Q value of cornea has no relationship with left or right eyes,sex and refraction,but it is highly customized.