Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling by array of wound samples from rats treated with the 5alpha-reductase inhibitor MK-434


ABSTRACT: The present study aimed to delineate the central mechanisms by which androgens delay wound repair. Blocking the conversion of testosterone to 5alpha-dihydrotestosterone (DHT) by 5alpha-reductase limits its ability to impair skin wound healing, suggesting that DHT is a more potent inhibitor of repair than is testosterone. This study aims to identify, through transcription profiling, potential mechanisms by which the 5alpha-reductase inhibitor MK-434 modulates repair. Microarray analysis of wound RNA samples from rats in which the transformation of testosterone to DHT is prevented has identified biological processes and key individual genes through which DHT may contribute to the altered healing profile in such animals. These include genes with putative roles in wound contraction and re-epithelialization.

ORGANISM(S): Rattus norvegicus

SUBMITTER: Leo Zeef 

PROVIDER: E-MEXP-1232 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

5alpha-dihydrotestosterone (DHT) retards wound closure by inhibiting re-epithelialization.

Gilliver S C SC   Ruckshanthi J P D JP   Hardman M J MJ   Zeef L A H LA   Ashcroft G S GS  

The Journal of pathology 20090101 1


The ongoing search for explanations as to why elderly males heal acute skin wounds more slowly than do their female counterparts (and are more strongly disposed to conditions of chronic ulceration) has identified endogenous oestrogens and androgens as being respectively enhancers and inhibitors of repair. We previously demonstrated that blocking the conversion of testosterone to 5alpha-dihydrotestosterone (DHT) limits its ability to impair healing, suggesting that DHT is a more potent inhibitor  ...[more]

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