منابع مشابه
Etiology and Evaluation of Sperm Chromatin Anomalies
Evidence suggests that human sperm chromatin anomalies adversely affect reproductive outcomes and infertile men possess substantially amount of sperm with chromatin anomalies than fertile men. Routine semen analysis evaluates parameters such as sperm motility and morphology, but does not examine the nuclear DNA integrity of spermatozoa. It has been suggested that altered nuclear chromatin struc...
متن کاملetiology and evaluation of sperm chromatin anomalies
evidence suggests that human sperm chromatin anomalies adversely affect reproductive outcomes and infertile men possess substantially amount of sperm with chromatin anomalies than fertile men. routine semen analysis evaluates parameters such as sperm motility and morphology, but does not examine the nuclear dna integrity of spermatozoa. it has been suggested that altered nuclear chromatin struc...
متن کاملThe structural organization of sperm chromatin.
The packaging of the male haploid genome within the differentiating spermatid nucleus is facilitated by small basic nuclear proteins called protamines. Although the majority of the DNA in human sperm chromatin is bound by these proteins, a small percentage retains a nucleosomal-like component. These histone-enriched regions may possess enhanced nuclease sensitivity and have been postulated to d...
متن کاملRetroposon DNA in sperm nucleosomal chromatin
Spermatozoa are traditionally regarded as metabolically inactive cells, whose exclusive function lies in the contribution of the paternal genome to the diploid zygote. This view rests upon the observation that these cells have essentially developed a large head, containing the male genome in a tightly packed structure, and a flagellum that acts as the motorial apparatus; the cytoplasmic portion...
متن کاملChromatin and extracellular vesicle associated sperm RNAs
A diverse pool of RNAs remain encapsulated within the transcriptionally silent spermatozoon despite the dramatic reduction in cellular and nuclear volume following cytoplasm/nucleoplasm expulsion. The impact of this pronounced restructuring on the distribution of transcripts inside the sperm essentially remains unknown. To define their compartmentalization, total RNA >100 nt was extracted from ...
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ژورنال
عنوان ژورنال: Molecular & Cellular Proteomics
سال: 2008
ISSN: 1535-9476
DOI: 10.1074/mcp.r800005-mcp200