Effect of thyroid hormone on myocardial and cerebral ischemia reperfusion injury in valve replacement under cardiopulmonary bypass

Objective:To study the effect of thyroid hormone (euthyrox) on myocardial and cerebral ischemia reperfusion injury in valve replacement under cardiopulmonary bypass.Methods:A total of 76 patients who received valve replacement under cardiopulmonary bypass in our hospital between January 2013 and December 2016 were collected and divided into control group (n=38) and observation group (n=38) according to random number table. Observation group took euthyrox orally 1 week before surgery, control group took vitamin C tablets orally at the same point in time, and both therapies lasted for 1 week. Before taking medicine and after cardiopulmonary bypass (before end of surgery), serum levels of myocardial enzyme spectrum indexes and nerve injury indexes were compared between the two groups of patients. Results: Before taking medicine, differences in the serum levels of myocardial enzyme spectrum indexes and nerve injury indexes were not statistically significant between the two groups of patients. After cardiopulmonary bypass, serum myocardial enzyme spectrum indexes cTnT, CK-MB,α-HBD and LDH levels in observation group were lower than those in control group;serum nerve injury indexes NSE, S100B and GFAP levels were lower than those in control group while bFGF level was higher than that in control group.Conclusion: Euthyrox intervention in valve replacement under cardiopulmonary bypass can effectively reduce the myocardial and cerebral ischemia reperfusion injury.

Success rates of in vitro fertilization versus intracytoplasmic sperm injection in men with serum anti-sperm antibodies:a consecutive cohort study

Antisperm antibodies(ASAs)are assumed to be a possible causative factor for male infertility,with ASAs detected in 5%-15%of infertile men but in only l%-2%of fertile ones.It remains unclear whether ASAs have an adverse effect on the outcome of in v/tro fertilization(IVF)or intracytoplasmic sperm injection(ICSI).This study investigated differences in the rates of fertilization,pregnancy,and live births associated with serum ASA-positive and ASA-negative men following IVF or ICSI.Five hundred and fifty-four consecutive infertile couples undergoing IVF(n=399)or ICSI(n=155)were included.The two-sample two-sided t-test and Chi-square or Fisher's exact test was used for statistical analysis.Lower rates of fertilization(41.7%vs 54.8%,P=0.03),good embryos(18.9%vs 35.2%,P=0.00),pregnancy(38.5%vs 59.4%,P=0.00),and live births(25.8%vs 42.5%,P=0.00)were observed in men of the IVF group with a positive serum ASA than in those with a negative ASA.ASA positivity/negativity correlated with pregnancy rates(P=0.021,odds ratio[OR]:0.630,95%confidence interval[Cl]:0.425-0.932)and live birth rates(P=0.010,OR:1.409,95%Cl:1.084-1.831)after controlling for the female serum follicle-stimulating hormone level and the couple's ages at IVF.Women coupled with ASA-positive men had lower live birth rates with IVF than with ICSI(25.8%and 47.4%,respectively;P=0.07).Women coupled with ASA-positive men had lower rates of pregnancy and live births following IVF than those coupled with ASA-negative men but had a similar outcome with ICSI.

Inhibition of Yuyihe Powder on Tumor Growth in Mice Models of Sarcoma 180

Objective To explore the antitumor effect of Yuyihe Powder（Yu Yi He San,YYHS） and its antitumor mechanism.Methods After treatment,tumor weight,immune apparatus weight,the life span of transplanted animals,spleen lymphocyte proliferation assays,and IL-2 concentration in mouse serum were recorded or detected.Results YYHS showed strong antitumor ability.Compared with control group,mid-dose YYHS（1.0g/kg） could inhibit the tumor growth,prolong the life span of S180-bearing mice to some extent,significantly increase the thymic and splenic indices of S180 mice,and strongly promote the secretion of IL-2 in blood;The inhibitory rate on tumor growth and life prolongation rate were 37.1%and 38.37%,respectively.Conclusion YYHS could not only significantly inhibit the growth of S180 cells,but also markedly prolong the survival time of S180 bearing mice.The mechanism of antitumor effect could obviously enhance immunologic function of the S180 bearing mice to inhibit the growth of S180 cells.