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Idiopathic oligozoospermic patients vs. Normozoospermic fertile controls

ABSTRACT: Idiopathic oligozoospermic patients vs. Normozoospermic fertile controls

PROVIDER: PRJNA422781 | ENA |

REPOSITORIES: ENA

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Comparative endometrial proteomics among fertile women, intrauterine device carriers, and recurrent implantation failure patients using iTRAQ methodology

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2019-11-06 | PXD011094 | Pride

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Project description:The pathophysiology of post-infectious and idiopathic olfactory loss is still poorly delineated. Since proteins are key players in olfaction and technical advances including LC-MS/MS mass spectrometry give us the opportunity for detailed analysis of the nasal mucus proteome we aimed to undertake a comparative analysis of the olfactory cleft mucus proteome using mucus samples of the olfactory cleft in patients with idiopathic and postinfectious olfactory disorders versus healthy controls. The study was conceived as a pilot study and included 7 patients with idiopathic hyp- and anosmia, 7 patients with postinfectious hyp- and anosmia and 7 healthy controls. In total, 1117 different proteins were detected in at least 5 patients in at least one group. No significant different overall protein concentrations in patients compared to healthy controls (0.4614 µg/µL, SD=0.26273 vs. 0.5143 µg/µL, SD=3087; p=0.689) were found. Significant correlation regarding olfactory test results (TDI score) and protein concentrations (r=0.114, p=0.623) were either found. Results of this study did not show significant differences regarding the proteomic composition of the olfactory cleft mucus between patients suffering from postinfectious and idiopathic dysosmia versus healthy controls. Thus, central olfactory processing pathways may play a role in idiopathic and postinfectious olfactory disorders.

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Altered mRNA profile in testis of patients with“secondary idiopathic non-obstructive azoospermia”

Project description:Background: Non-obstructive azoospermia (NOA) is the most severe form of male infertility. Currently known causative factors, including congenital and several acquired causes can only account for approximately 30% of NOA cases. Causes for most patients with NOA remains unclear, which were known as idiopathic NOA (iNOA). However, whether iNOA is congenital defects or acquired abnormalities is a confusing problem due to the delayed diagnosis of this frustrating situation until childbearing age. Materials and Methods: In this study, several patients who were diagnosed as iNOA at this stage, but with a history of natural conceptions with female before were enrolled and defined as “secondary idiopathic NOA”. As little was known about these cases, we performed the mRNA expression profiling by Next-generation sequencing (NGS) in this three patients and other three patients with obstructive azoospermia (OA) as controls. Results: A series of mRNAs were found to be altered in testicular tissues between “secondary idiopathic NOA” and controls, including 6028 downregulated and 3402 upregulated mRNAs. GO analysis and KEGG analysis revealed a range of GO and KEGG terms, such as cellular process involved in reproduction, protein digestion and absorption, etc. Conclusion: Overall, this study introduces a novel classification called “secondary idiopathic NOA” in iNOA. We provide a global view of the altered mRNAs involved in spermatogenetic failure in these cases.

2022-06-01 | GSE190752 | GEO

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