نتایج جستجو برای: daz
تعداد نتایج: 317 فیلتر نتایج به سال:
Türkçede anlam genişletici ya da değiştirici kimi eklerle muhtelif şekillerde teşekkül etmiş olmalarına karşın taban anlamlarına geri dönen ve “döngülü sözcükler” olarak adlandırılabilecek sözcükler vardır. Bu türden sözcüklerin geçirdikleri süreç “anlamsal döngü” adlandırılabilir. “daz ⇔ dazlak” eklemlenmesinde de anlamsal döngü süreci başlamıştır. “Dazlak” sözcüğü tabanı olan “daz” sözcüğüyle...
Due to its palindromic setup, AZFc (Azoospermia Factor c) region of chromosome Y is one of the most unstable regions of the human genome. It contains eight gene families expressed mainly in the testes. Several types of rearrangement resulting in changes in the cumulative copy number of the gene families were reported to be associated with diseases such as male infertility and testicular germ ce...
Turkmen, when expressing the avertive meaning “an event almost realized”, applies an obligatory marker tas. Turkmen grammars traditionally describe it as a word that gives negative connotation to <an action was possible but did not happen>. However, in Turkic linguistics and particular, status of tas modal or grammatical particle has yet been studied. Moreover, there are no studies Turcol...
Objective: Microdeletions of azoospermia factor (AZF) regions in Y chromosome were a genetic risk factor of spermatogenic failure and male infertility. Most laboratories carried out the AZF microdeletion testing by using peripheral intravenous blood, and AZF microdeletion in spermatozoa of infertile patients was sometimes not identical to that of peripheral intravenous blood due to the existenc...
The recombination site dif is the target on the Escherichia coli chromosome of the site-specific recombinases XerC and XerD. The dif/XerC-D system plays a role during the cell cycle, probably by favoring sister chromosome monomerization or separation. A phenomenon of regional control over dif activity, also analyzed in this issue, is demonstrated here by translocation of dif to a series of loci...
Y chromosome microdeletion is the most important genetic cause of impairment of spermatogenesis. Nevertheless, a significant proportion of patients with spermatogenic failure do not have this condition. This study investigated the expression level of AZF genes, DDX3Y (DBY), RBMY1, DAZ and TSPY in testicular tissues of 42 subjects with impaired spermatogenesis compared with 33 with normal sperma...
The azoospermia factor c (AZFc) region in the long arm of human Y chromosome is characterized by massive palindromes. It harbors eight multi-copy gene families that are expressed exclusively or predominantly in testis. To assess systematically the role of the AZFc region and these eight gene families in spermatogenesis, we conducted a comprehensive molecular analysis (including Y chromosome hap...
The DAZL (DAZ-like) gene is suggested to be an ancestral gene of the DAZ (deleted in azoospermia) gene on the Y chromosome, which is a strong candidate for the azoospermic factor. Recently, it has been reported that the T54A (Thr54-->Ala) polymorphism in exon 3 of the DAZL gene is associated with spermatogenic failure in the Taiwanese population. In this study, to investigate whether this polym...
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