简介:Sincethecarbohydratecontentaffectspearflavorduringtheprocessofgrowth,itisnecessarytodeterminethesugarcomponentsthataccumulateinthefruit.Weanalyzedthefruitcarbohydratecontent,andthegeneexpressionandactivityofacidinvertase(AI),neutralinvertase(NI),sucrosesynthase(SS),andsucrosephosphatesynthase(SPS)duringthedevelopmentof“Huangguan”and“Yali”pears.Theresultsdemonstratethatduringdevelopment,thefruitsugarmetabolismofthe“Huangguan”pearfollowsatypicalsorbitol–starch-solublesugarsmiddlemodel,whereasthe“Yali”pearfruitfollowsatypicalsorbitol–sucrose–starch-solublesugarsmiddlemodel.Inthe“Huangguan”pear,wefoundtheAIandNIgeneexpressions,aswellasAI(P<0.05)andNI(P<0.01)enzymeactivities,tobepositivelycorrelated,whereaswefoundtheNIgeneexpressionandNIenzymeactivityof“Yali”peartobenegativelycorrelated(P<0.01).Weobservedthehighlevelsoflate-stageAIandearly-stageSSduringdevelopmenttoroughlycorrespondwiththegeneexpressionfoundinthelateandearlystages,respectively,suggestingtheirpotentialregulatoryrolesin“Huangguan”pearfruitdevelopment.OurresultsindicatethattheprimaryfunctionofSPSduringtheearlydevelopmentalstageistoaccumulatesucrose,whereastheprimaryfunctionofAIistopromotehexoseaccumulationduringthelatedevelopmentalstageofmature“Yali”pearfruit.
简介:摘要目的研究河南地区人群中阿司匹林代谢相关基因血小板内皮聚集受体1(PEAR1)多态性的分布情况。方法采用荧光染色原位杂交检测法对2019年1月至12月来南阳医学高等专科学校第一附属医院体检的115名健康体检者的PEAR1(rs12041331)基因型进行检测。115名健康体检者中,男性69名,女性46名,年龄(40.0±3.5)岁。结果共发现PEAR1有3种基因型,即AA、GA和GG型,每种基因型的分布频率分别为12.17%(14/115)、46.09%(53/115)和41.74%(48/115)。将试验结果进行Hardy-Weinberg定律的吻合度测验,通过计算检测符合Hardy-Weinberg平衡定律(χ2=1.24,P=0.362)。结论河南地区人群中PEAR1具有基因多态性,其中GA型为较常见的基因型。
简介:【摘要】目的:分析PEAR1基因多态性与脑出血(ICH)患者血小板聚集功能及血肿扩大的相关性。方法:选取本院2022年1月~12月150例ICH患者,均行PEAR1基因型鉴定以及血小板聚集功能检测;首次CT后24h内复查明确血肿有无扩大;随访3个月分析预后情况。根据PEAR1基因内含子区域的rs12041331位点基因型,将患者分为GG型组、GA型组、AA型组,比较组间血小板聚集功能、血肿扩大及预后的差异。结果:GG型组与GA型组的血小板最大聚集率、血肿扩大率、预后良好率对比,P>0.05;GG型组与GA型组的血小板最大聚集率高于GA型和AA型组、,血肿扩大率低于GA型和AA型组,预后良好率高于GA型和AA型组,P<0.05。结论:PEAR1基因多态性与ICH患者血小板聚集功能、血肿扩大以及预后存在一定的相关性。