Polycystic ovary syndrome(PCOS) is an endocrine and metabolic heterogeneous disorder,the incidence of which reaches 5% to 10% among reproductive-age *** folliculogenesis is considered to be a common characteristic of ...
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Polycystic ovary syndrome(PCOS) is an endocrine and metabolic heterogeneous disorder,the incidence of which reaches 5% to 10% among reproductive-age *** folliculogenesis is considered to be a common characteristic of PCOS, but the cause of this disorder and its pathogenesis still remain uncertain. Previous studies had proved that dysregulation of microRNAs is related to the pathogenesis of *** this study, we investigated the effect of miR-323-3 p on the human cumulus cells(CCs). We also investigated the underlying mechanisms of miR-323-3 p on human granulosa-like tumor cell line(KGN) by stimulating with Dihydrotestosterone(DHT).Our findings suggested that the level of miR-323-3 p in human cumulus cells of women with PCOS was down-regulated, compared with that of the control ***, the inhibition of the level of miR-323-3 p could up-regulate of the steroidogenesis and promote the apoptosis in KGN cells. In addition, our data confirmed that the Insulin-like growth factor 1(IGF-1) gene was the direct target of miR-323-3 p. Furthermore, the mimic of miR-323-3 p inhibited the expression of IGF-1, which down-regulated the levels of AR, AMHR-II, CYP19 A, EGFR, and GATA-4. In conclusion, miR-323-3 p targeting IGF-1 regulates the steroidogenesis and the activity of cumulus cells, which plays an important role in the occurrence and development of PCOS. Our results have shown that miR-323-3 p is a novel and promising molecular target for the improvement of the dysfunction of cumulus cells in PCOS.
Background: Recent development of single nucleotide polymorphism array(SNP array) technology allows detection of a wide range of new submicroscopic abnormalities. Publishing new cases and case reviews associated with ...
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Background: Recent development of single nucleotide polymorphism array(SNP array) technology allows detection of a wide range of new submicroscopic abnormalities. Publishing new cases and case reviews associated with both clinical abnormalities and a normal phenotype is of great ***/results: We report two phenotypically normal families with microduplication of 18 q22. One was maternal origin and the other was patrilinealorigin. Both abnormalities were found by SNP *** 1: In 2013, the pregnant women choosed the non-invasive prenatal screening tests(NIPTs), when 14 weeks it revealed that a suspicious 2.7-Mb duplication in18 q22.3. Using high-resolution SNP array analysis, we identified the fetus have a2.36-Mb microduplication in 18 q22.3(chr18: 70,476,039-72,845,315) on uncultured amniocytes. Its mother was confirmed to have the same abnormalities by SNP *** fetus were born and was healthy with normal intellectuality and phenotype at two-year-old follow-up. The woman was pregnant again, and the amniotic fluid puncture prenatal diagnosis was due to an abnormal NT value,in 2016. Her second child also inherited the 2.41-Mb microduplication in 18 q22.3(chr18:70,463,682-72,869,656) with normal phenotype at one-year-old *** 2: Because of the age ≥35 years old, the pregnant women choose *** fetus carried a patrilineal-inherited 1.76-Mb microduplication of chromosome18 q22.3(chr18:70,348,272-72,103,197).We used the HumanCytoSNP-12 array of Illumina to visualize the CNVs and map the ***: We suggest that a CNV at 18 q22.3 microduplication may represent a new benign euchromatic variant.
Purpose: Male infertility is a major issue of human reproduction ***-teratospermia can impair sperm motility and cause male infertility. Male individuals with multiple morphological abnormalities of the flagella(MMAF)...
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Purpose: Male infertility is a major issue of human reproduction ***-teratospermia can impair sperm motility and cause male infertility. Male individuals with multiple morphological abnormalities of the flagella(MMAF)present abnormal spermatozoa with absent, bent, coiled, short and/or irregular-caliber flagella. Previous studies on MMAF reported that genetic defects in cilia-related genes(e.g. DNAH1 and CCDC39) are the major cause of MMAF. However, the known MMAF-associated genes are only responsible for approximately half of human cases. Pathogenic mechanisms still remain to be elucidated in ***: We conducted whole-exome sequencing in a male individual with MMAF from a consanguineous Han Chinese family. Sanger sequencing was also conducted in additional individuals with MMAF. Furthermore, we generated the knockout model using the CRISPR-Cas9 ***: Intriguingly, a homozygous frameshift mutation(***357 Hisfs*11) was identified in the gene encoding CFAP69(cilia and flagella associated protein 69),which is highly expressed in testis. The subsequent Sanger sequencing of the CFAP69 coding regions among 34 additional individuals with MMAF revealed a homozygous nonsense mutation(***216*) of CFAP69. Both of these CFAP69 loss-of-function mutations were not present in the human population genome data archived in the 1000 Genomes Project and ExAC databases, nor in 875 individuals of two Han Chinese control populations. Furthermore, we generated the knockout model in mouse ortholog Cfap69. Remarkably, male Cfap69-knockout mice manifested with MMAF ***: Our experimental findings elucidate that homozygous loss-of-function mutations in CFAP69 can lead to male infertility with MMAF in humans and mice.
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