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Heme Oxygenase-1 Expression in the Ovary Dictates a Proper Oocyte Ovulation, Fertilization, and Corpora Lutea Maintenance.
MedLine Citation:
PMID:  22133191     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Citation Zenclussen ML, Jensen F, Rebelo S, El-Mousleh T, Casalis PA, Zenclussen AC. Heme oxygenase-1 expression in the ovary dictates a proper oocyte ovulation, fertilization, and corpora lutea maintenance. Am J Reprod Immunol 2011 Problem  Animals deficient in Heme oxygenase-1 (HO-1, Hmox1(-/-) mice) have impaired pregnancies, characterized by intrauterine fetal death. HO-1 expression has been shown to be essential for pregnancy by dictating placentation and intrauterine fetal development. Its absence leads to intrauterine fetal growth restriction and fetal loss, which is independent of the immune system. Defect in previous steps, e.g., ovulation, may, however, also count for their poor reproductive outcome. Method of study  Here, we investigated ovulation after hormonal hyperstimulation in Hmox1 wild-type and knockout animals. Results and Conclusions  We observed that animals lacking HO-1 produced significantly less oocytes after hormonal stimulation than wild type animals and this was mirrored by the number of corpora lutea in the ovary. Furthermore, ovulated oocytes from Hmox1(-/-) animals were poorly fertilized compared with those from wild-type animals. In conclusion, we demonstrate here that HO-1 plays a pivotal role in the process of oocyte ovulation as well as fertilization, bringing to light a new and unsuspected role for HO-1.
Authors:
Maria L Zenclussen; Federico Jensen; Sofia Rebelo; Tarek El-Mousleh; Pablo A Casalis; Ana C Zenclussen
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-2
Journal Detail:
Title:  American journal of reproductive immunology (New York, N.Y. : 1989)     Volume:  -     ISSN:  1600-0897     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8912860     Medline TA:  Am J Reprod Immunol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2011 John Wiley & Sons A/S.
Affiliation:
Department of Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany Instituto Gulbenkian de Ciência, Oeiras, Portugal Department of Neurosurgery, Berlin Universittsmedizin, Berlin, Germany.
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