简介：

简介：

简介：Aim:Tofindouttheeffectoflindaneontesticularantioxidantsystemandtesticularsteroidogenesisinadultmalerats.Methods:Adultmaleratswereorallyadministeredwithlindaneatadoseof5.0mg/kgbodyweightperdayfor30days.Twenty-fourhoursafterthelasttreatmenttheratswerekilledusinganestheticether.Testes,epididymis,seminalvesiclesandventralprostatewereremovedandweighed.A10%testicularhomogenatewaspreparedandcentrifugedat4°C.Thesupematantwasusedforvariousbiochemicalestimations.Results:Thebodyweightandtheweightsoftestes,epididymis,seminalvesiclesandventralprostatewerereducedinlindane-treatedrars.Therewasasignificantdeclineintheactivitiesofantioxidantenzymessuperoxidedismutase(SOD),catalaseandglutathionereductasewhileanincreaseinhydrogenperoxide(H2O2)generationwasobserved.Thespecificactivitiesoftesticularsteroidogenicenzymes3β-hydroxysteroiddehydrogenaseand17β-hydroxysteroiddehydrogenaseweredecreased.ThelevelsofDNA,RNAandproteinwerealsodecreasedinlindane-treatedrats.Conclusion:Lindaneinducesoxidativestressanddecreasesantioxidantenzymesinadultmalerats.

简介：Aim:Tostudytheapoptoticrate(AR)andtheandrogenandestrogenmilieuintheproximalanddistalductalsystemsofprostate,inordertohelpexploringtheeffectsofthesefactorsonprostaticgrowthandthepathogenesisofbenignprostatichypertrophy(BPH).Methods:Theproximalanddistalendsoftheductalsystemwereincisedfrom20normalprostateaswellasthehypertrophicprostatetissuefrom20patientswithBPH.TheARwasdeterminedbytheDNAend-labelingmethodanddihydrotestosterone(DHT)andestrodiol(E2),byradioimmunoassay.Results:TherewasnosignificantdifferenceinDHTandE2densitybetweentheproximalanddistalendsoftheductalsystemsinnormalprostate.E2appearedtobehigherinBPHthaninnormalprostatictissues,butthedifferencewasstatisticallyinsignificant.Innormalprostatictissue,theARwassignificantlyhigherinthedistalthanintheproximalendsoftheductalsystem(P＜0.05),whiletheARoftheproximalendswassignificantlyhigher(P＜0.01)thanthatintheBPHtissue.NosignificantcorrelationwasnotedbetweentheDHTandE2densityandtheARbothinthenormalprostateandBPHtissues.Conclusion:ThepaperisthefirsttimedescribingadifferenceinARindifferentregionsoftheductalsystemofnormalprostate,whilethehormonalmilieuissimilar,indicatingafunctionalinhomogeneityoftheseregions.AlowARintheproximalduct,whereBPHoriginates,andanevenlowerARintheBPHtissue,suggestingtheparticipationofapoptosisintheBPHpathogenesis.

简介：目前，有在vitro不可靠像睾丸的biomimetic机关文化系统设计了在Sertoli和Leydig房间上估计人的gonadotropins的功能的效果的装配prepubertal。精子发生被调整由内分泌，paracrine，和juxtacrine因素(阴囊的串音)，主要由象luteinizing荷尔蒙(LH)和由分别地刺激Leydig和Sertoli房间起一个枢轴的作用的刺激滤泡的荷尔蒙(FSH)那样的gonadotropins安排了。我们的学习的目的是建立一在里面vitroprepubertal是的猪的bioengineered构造为重新集合的Sertoli和Leydig房间上的试验性的研究的一个新模型。我们评估了从15-获得到20-day-old的Sertoli和Leydig房间新生的猪睾丸以纯净和功能。随后，净化了Sertoli并且充实Leydig房间受到coincubation获得一在里面vitroprepubertal猪的像睾丸的文化系统。我们为anti-M执行了连接酶的immunosorbent试金(ELISA)