ArticleIslets2023
Islet hypoplasia of adult offspring rats caused by intrauterine chronic hypoxia is compensated by up-regulation of INS and PDX-1.
Article in Islets, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors at 1 institution in 1 country.
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Abstract
backgroundIntrauterine chronic hypoxia (ICH) can lead to pancreatic dysmetabolism in offspring. This study aimed to determine the changes in islet function of offspring through a rat ICH model and detect the factors affecting islet function.
methodsTwenty couples of healthy Sprague - Dawley adult rats were randomly mated, and the pregnant rats were randomly allocated to ICH and normal control (NC) groups. Pregnant rats in the ICH group were placed in a hypoxic chamber with 13% oxygen concentration for hypoxia treatment twice a day for 4 h until delivery at 21 days. NC group is inlet with normal air from beginning to end. After delivery, blood was taken from the heart of pregnant rats for blood gas analysis. The weight of the offspring rats was measured at 12 h after birth and 16 weeks after birth. At 16 weeks, the immunohistochemical results of β-cell total, islet area, insulin (INS), and glucose transporter 2 (GLUT2) proteins were obtained from the islets. The mRNA data of INS and pancreatic and duodenal homeobox 1 (PDX-1) genes were obtained from pancreas.
resultsWe found the β-cell total, islet area, and the positive cell area of INS and GLUT2 of offspring rats in ICH group were lower than those of NC group, while the levels of INS and PDX-1 genes were higher in ICH group than in NC group.
conclusionsICH can lead to islet hypoplasia in adult male offspring rats. However, this is within the compensatory range.
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