Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2004-4-8
pubmed:abstractText
Klinefelter syndrome is a major cause of infertility in the male. Nevertheless, pregnancies were recently obtained by intracytoplasmic injection of sperm retrieved by surgery or ejaculation, underscoring the need to understand the role of Sertoli and Leydig cell secretions during development. In 18 infants with prenatally diagnosed homogenous 47,XXY karyotype, blood samples were taken from birth to 3 yr of age. Inhibin B (INHB), anti-Müllerian hormone (AMH), testosterone, FSH, and LH levels were compared with those in six adolescents with XXY karyotype and reference values established in 215 control infants. In XXY infants FSH, LH, INHB, and AMH did not differ from controls. Testosterone levels during the first trimester exhibited a physiological increase but were lower than in controls (P = 0.0001). Significant correlations were found between testosterone and LH (P < 0001), between INHB and FSH (P = 0.0011), and between AMH and INHB (P = 0.025). In XXY adolescents, AMH and INHB were undetectable. Our findings demonstrate that testosterone secretion is impaired in infants with Klinefelter syndrome. By contrast, INHB and AMH secretions were not altered, which raises the question of the mechanism(s) governing the decline of Sertoli cell function after puberty.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0021-972X
pubmed:author
pubmed:issnType
Print
pubmed:volume
89
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1864-8
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:15070957-Adolescent, pubmed-meshheading:15070957-Anti-Mullerian Hormone, pubmed-meshheading:15070957-Case-Control Studies, pubmed-meshheading:15070957-Child, Preschool, pubmed-meshheading:15070957-Female, pubmed-meshheading:15070957-Fetus, pubmed-meshheading:15070957-Follicle Stimulating Hormone, pubmed-meshheading:15070957-Glycoproteins, pubmed-meshheading:15070957-Humans, pubmed-meshheading:15070957-Infant, pubmed-meshheading:15070957-Inhibins, pubmed-meshheading:15070957-Klinefelter Syndrome, pubmed-meshheading:15070957-Luteinizing Hormone, pubmed-meshheading:15070957-Male, pubmed-meshheading:15070957-Mosaicism, pubmed-meshheading:15070957-Pregnancy, pubmed-meshheading:15070957-Pregnancy Trimester, First, pubmed-meshheading:15070957-Testicular Hormones, pubmed-meshheading:15070957-Testosterone
pubmed:year
2004
pubmed:articleTitle
Inhibin B and anti-Müllerian hormone, but not testosterone levels, are normal in infants with nonmosaic Klinefelter syndrome.
pubmed:affiliation
Laboratoire de Biologie Hormonale, Hôpital Saint-Vincent-de-Paul, 75014 Paris, France. najiba.lahlou@svp.ap-hop-paris.fr
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't