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Prostate specific antigen in cord blood.
MedLine Citation:
PMID:  24082463     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Recent studies have demonstrated the presence of prostate specific antigen (PSA) in cord blood of male as well as female babies. The placental progesterone and estradiol up-regulate the synthesis and secretion of PSA in Placenta. This PSA is presumed to play a role in intrauterine growth of fetus by virtue of its proteolytic action on several substrates including insulin-like-growth-factor-binding-protein-3, insulin chains and Interleukin-2. This study was planned with the objective of correlating the levels of PSA in cord blood to gestation at delivery, the type of delivery and gender of the fetus. Fifty-seven cord blood samples were collected from the umbilical cord during delivery or mid-trimester abortion and analyzed for PSA using 'Active PSA DSL-9700 ultra sensitive' kit employing two-site immuno-radiometric assay principle and having a detection limit of 0.001 ng/ml. Mean PSA levels in cord blood were found to be 0.112 ± 0.027 ng/ml. The concentration of PSA in cord blood was found to be higher in case of higher gestational age, male baby and operative delivery. 50 % of cord bloods for female babies had PSA below detection limit (range <0.001-0.460 ng/ml), while all the male samples had detectable PSA (range 0.11-0.973 ng/ml). Higher Progesterone levels found in prenatal maternal blood in case of male babies may be responsible for the higher cord blood PSA. Mean cord blood PSA was 0.150 ± 0.150 ng/ml in forceps delivery and 0.078 ± 0.012 ng/ml in normal vaginal delivery. Forceps delivery causes much more stress and strain as compared to a normal vaginal delivery, resulting in increased levels of adrenal glucocorticoids, and therefore, higher cord blood PSA.
Authors:
Renu Nagar; K K Sharma
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Publication Detail:
Type:  Journal Article     Date:  2012-04-19
Journal Detail:
Title:  Indian journal of clinical biochemistry : IJCB     Volume:  27     ISSN:  0970-1915     ISO Abbreviation:  Indian J Clin Biochem     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2013-10-01     Completed Date:  2013-10-01     Revised Date:  2013-10-17    
Medline Journal Info:
Nlm Unique ID:  8708303     Medline TA:  Indian J Clin Biochem     Country:  India    
Other Details:
Languages:  eng     Pagination:  375-8     Citation Subset:  -    
Affiliation:
Department of Biochemistry, Dr. RP Government Medical College, Kangra, Himachal Pradesh India.
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