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Variant Form of Diffuse Corporal Gastritis in NHE2 Knockout Mice

机译:NHE2基因敲除小鼠的弥漫性体胃炎的变体形式。

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MicelackingtheNHE2Na+/H+genedevelopgastritisoftheglandularmucosaasearlyasthetenthdayoflife,achievingmaximalintensityofinflammationfrom17to19daysafterbirthandmaximalatrophyatoneyear.Weassessedtheeffectsofthisprocessinsuchmiceto16monthsofage.ThestomachofNHE2nullmutantswasexaminedat10,17to20,24to35and49to70days,andat12to16months.TheNHE2wild-type(+/+)andNHE2heterozygous(+/-)micewerecomparedwiththeNHE2homozygousmutantmice(-/-).Thestomachofthemutantmiceatallageswascharacterizedbyasubstantiallyreducednumberofparietalcells.The10-day-oldmousestomachhadatransmuralinfiltrateofprimarilyneutrophils.Withincreasingage,neutrophilswerereplacedbylymphocytesandplasmacellsintheglandularmucosaofthemutantmice.Youngadult49-to70-day-oldmicehadsurfacecellhyperplasiaandexpansionofthereplicatingcellpopulation.Hyperplasiaofenterochromaffin-likecellsandantralgastrincellsaccompaniedprofoundfundicglandandsurfacecellhyperplasia,andbecameprogressivelymoreseverewithincreasingageoftheNHE2-/-mice.Neoplasmswerenotfoundinthemutantorcontrolmice.Thisgastritisdiffersfromthatofautoimmunegastritisinthatitistransmural,beginsininfancy,andisassociatedwithapredominantlyneutrophilicinfiltrateinitsearlystages.Someofthehistologicchangesintheadultmicecanbeexplainedonthebasisofprolongedachlorhydria.Thismousemaybeasuitablemodelforprolongedeffectsofachlorhydria.
机译:MicelackingtheNHE2Na + / H + genedevelopgastritisoftheglandularmucosaasearlyasthetenthdayoflife,achievingmaximalintensityofinflammationfrom17to19daysafterbirthandmaximalatrophyatoneyear.Weassessedtheeffectsofthisprocessinsuchmiceto16monthsofage.ThestomachofNHE2nullmutantswasexaminedat10,17to20,24to35and49to70days,andat12to16months.TheNHE2wild型(+ / +)andNHE2heterozygous(+/-)micewerecomparedwiththeNHE2homozygousmutantmice( - / - )。Thestomachofthemutantmiceatallageswascharacterizedbyasubstantiallyreducednumberofparietalcells.The10天oldmousestomachhadatransmuralinfiltrateofprimarilyneutrophils.Withincreasingage,neutrophilswerereplacedbylymphocytesandplasmacellsintheglandularmucosaofthemutantmice 49至70天大的幼年成年小鼠表面细胞过度增生和复制细胞群的扩大。肠嗜铬细胞样细胞增生和胃泌素胃泌素细胞增生伴有严重的腺体和表面细胞增生,并且随着NE的不断增加,其严重程度越来越严重。这种胃炎与自体免疫性胃炎有所不同,因为这种炎经壁,刚开始时就与早期中性粒细胞浸润有关,某些组织学上的改变可能是由于长期使用盐酸导致的。

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