Abstract:
:The mechanism of onset of hypoglycemia in patients with carnitine deficiency has yet to be determined. Using mice with systemic carnitine deficiency (JVS mice), we examined this mechanism, focusing on the weaning period (days 14-28 postpartum). For normal mice, the survival rate was 100%, and no hypoglycemia was observed at all. Gastric lactose began to decrease on day 17, and cellulose increased sharply in amount thereafter. For JVS mice, the survival rate was 77% on day 14 and 28% on day 28. From day 21 on, hypoglycemia was noted. Gastric lactose had disappeared almost completely by day 17, and cellulose was almost undetectable from days 14 to 28. Expression of orexin mRNA in the hypothalamus did not differ between JVS and normal mice on day 14, but was suppressed in JVS mice on days 21 and 28. When JVS mice were fed a carnitine-rich diet, suppression of expression of orexin mRNA in hypothalamus was eliminated, and on day 28 lactose and cellulose were detected in the stomach without hypoglycemia. In conclusion, the suppression of the expression of orexin in the hypothalamus during the weaning period may be involved in the marked anorexia in JVS mice, which eventually leads to death from hypoglycemia.
journal_name
Endocr Jjournal_title
Endocrine journalauthors
Kuwajima M,Fujihara H,Sei H,Umehara A,Sei M,Tsuda TT,Sukeno A,Okamoto T,Inubushi A,Ueta Y,Doi T,Kido Hdoi
10.1507/endocrj.k07-044subject
Has Abstractpub_date
2007-12-01 00:00:00pages
911-25issue
6eissn
0918-8959issn
1348-4540pii
JST.JSTAGE/endocrj/K07-044journal_volume
54pub_type
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