|
|
| PMID |
|
|
| TITLE |
|
| An excess of the Pi S allele in dizygotic twins and their mothers. |
|
| ABSTRACT |
|
|
|
| A significant excess of the alpha 1-antitrypsin (protease inhibitor) PiS allele has been found in 147 pairs of dizygotic (DZ) twins, but frequencies in 170 pairs of monozygotic (MZ) twins do not differ from those in a sample of 1007 blood donors. In 51 mothers of DZ twins the frequency of the PiS allele was double that in the same sample of donors, but there was no corresponding increase in the fathers of DZ twins nor in the parents of MZ twins. In an independent sample of 66 mothers of twins of unknown zygosity, there was also a significant excess of PiMPiS and PiMPiZ phenotypes, and this was particularly marked in the subsample of mothers of opposite-sex twin pairs. We speculate that lowered protease inhibitor levels in women carrying the PiS allele may enhance sperm migration, increase the probability of multiple ovulation, or both. |
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| DATE PUBLISHED |
|
|
| HISTORY |
|
| PUBSTATUS |
PUBSTATUSDATE |
| pubmed |
1982/01/01 |
| medline |
1982/01/01 00:01 |
| entrez |
1982/01/01 00:00 |
|
| AUTHORS |
|
| NAME |
COLLECTIVENAME |
LASTNAME |
FORENAME |
INITIALS |
AFFILIATION |
AFFILIATIONINFO |
| Clark P |
|
Clark |
P |
P |
|
|
| Martin NG |
|
Martin |
N G |
NG |
|
|
|
| INVESTIGATORS |
|
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| JOURNAL |
|
| VOLUME: 61 |
| ISSUE: 2 |
| TITLE: Human genetics |
| ISOABBREVIATION: Hum. Genet. |
| YEAR: 1982 |
| MONTH: |
| DAY: |
| MEDLINEDATE: |
| SEASON: |
| CITEDMEDIUM: Print |
| ISSN: 0340-6717 |
| ISSNTYPE: Print |
|
| MEDLINE JOURNAL |
|
| MEDLINETA: Hum Genet |
| COUNTRY: Germany |
| ISSNLINKING: 0340-6717 |
| NLMUNIQUEID: 7613873 |
|
| PUBLICATION TYPE |
|
| PUBLICATIONTYPE TEXT |
| Journal Article |
|
| COMMENTS AND CORRECTIONS |
|
|
| GRANTS |
|
|
| GENERAL NOTE |
|
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| KEYWORDS |
|
|
| MESH HEADINGS |
|
| DESCRIPTORNAME |
QUALIFIERNAME |
| Alleles |
|
| Female |
|
| Gene Frequency |
|
| Humans |
|
| Male |
|
| Phenotype |
|
| Pregnancy |
|
| Twins |
|
| Twins, Dizygotic |
|
| Twins, Monozygotic |
|
| alpha 1-Antitrypsin |
genetics |
| alpha 1-Antitrypsin Deficiency |
genetics |
|
| SUPPLEMENTARY MESH |
|
|
| GENE SYMBOLS |
|
|
| CHEMICALS |
|
| REGISTRYNUMBER |
NAMEOFSUBSTANCE |
| 0 |
alpha 1-Antitrypsin |
|
| OTHER ID's |
|
|
|
