| Starvation suppresses cell proliferation that rebounds after refeeding in the midgut of the American cockroach, Periplaneta americana. | |
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MedLine Citation:
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PMID: 18067918 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Starvation affects behavior, development, metabolism, reproduction, and longevity in almost all animals including insects. In the American cockroach, Periplaneta americana, we investigated the effect of starvation on organ size and cell proliferation activity of the midgut, over a period of one month, using anti-bromodeoxyuridine (BrdU), and anti-phospho-histone H3 antibodies. Under starvation conditions, the midgut became clear and fragile while its length and diameter were reduced. Both the rate of BrdU-uptake in the nucleus and the mitotic activity shown by anti-phospho-histone H3 antibody decreased under long starvation up to half that of the continuously fed control. Refeeding restored BrdU-uptake and mitosis that overshot the fed control. When casein, starch, or cooking oil was fed as representative nutrient sources to the starved cockroaches, all restored BrdU-uptake, but non-nutrient, talc, did not. This study supports the hypothesis that P. americana has a homeostatic mechanism to regulate the cell population of the midgut epithelium according to changes in the nutritional environment. |
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Authors:
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Moon Soo Park; Makio Takeda |
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Publication Detail:
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Type: Journal Article Date: 2007-11-04 |
Journal Detail:
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Title: Journal of insect physiology Volume: 54 ISSN: 0022-1910 ISO Abbreviation: J. Insect Physiol. Publication Date: 2008 Feb |
Date Detail:
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Created Date: 2008-02-06 Completed Date: 2008-04-17 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 2985080R Medline TA: J Insect Physiol Country: England |
Other Details:
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Languages: eng Pagination: 386-92 Citation Subset: IM |
Affiliation:
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Graduate School of Science and Technology, Kobe University, Kobe, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Antibodies Bromouracil / immunology Cell Proliferation* Feeding Behavior* Female Gastrointestinal Tract / cytology, immunology Immunohistochemistry Periplaneta / physiology* Starvation* Time Factors |
| Chemical | |
Reg. No./Substance:
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0/Antibodies; 51-20-7/Bromouracil |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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