The central paradox of schizophrenia is that the condition, apparently genetic in origin,
persists in spite of a substantial fecundity disadvantage. The hypothesis is proposed that the …

Three different spermatogenesis loci have been mapped on the Y chromosome and named
“azoospermia factors”(AZFa, b, and c). Deletions in these regions remove one or more of the …

A systematic search of the nonrecombining region of the human Y chromosome (NRY)
identified 12 novel genes or families, 10 with full-length complementary DNA sequences. All …

Background Some infertile men with azoospermia or severe oligospermia have small
deletions in regions of the Y chromosome. However, the frequency of such microdeletions …

Cytogenetic and molecular deletion analyses of azoospermic and oligozoospermic males
have suggested the existence of AZoospermia Factor (s)(AZF) residing in deletion intervals …

It is widely believed that most or all Y–chromosomal genes were once shared with the X
chromosome. The DAZ gene is a candidate for the human Y–chromosomal Azoospermia …

OBJECTIVE: To achieve a unified concept of the aetiology of psychosis. BACKGROUND:
The nuclear symptoms of “schizophrenia” occur with approximately the same age-and sex …

We report the results of one of the first intrageneric analyses to simultaneously survey
mitochondrial, Y‐chromosomal, and autosomal loci from the same individuals representing …

Idiopathic Sertoli cell-only syndrome (SCOS) Is characterized by azoospermia, small testes,
absence of germ cells In the testes, elevated Mick stimulating hormone and normal …

We report here the results of one of the first analyses to use male-specific nuclear markers in
elucidating primate phylogenetic relationships at the intrageneric level. Two closely linked Y …