Homo sapiens
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ABSTRACT:
PROVIDER: PRJNA102767 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Caput epididymides biopsies from 4 patients suffering from non-obstructive azoospermia and from 4 patients with active spermatogenesis were compared. 414 genes in the caput epididymides were differentially regulated in infertile men by at least a 2-fold change as compared to the fertile men. Experiment Overall Design: Comparative caput epididymal gene expression from 4 patients with either active spermatogenesis (reference samples) or non-obstructive azoospermia. On each array, infertile tissue were compared to fertile tissue. Whenever the fertile tissues were labeled with cyanine 5 (see samples entitled "Patients 1 and 2" and "Patients 7 and 8"), the fluorescence ratios were swapped. Data was normalized using a locally weighted regression Lowess method and genes were considered differentially expressed in infertile sample versus fertile sample if there was at least a 2-fold change in 3 patients out of 4.
2008-06-16 | E-GEOD-9194 | biostudies-arrayexpress
Project description:Caput epididymides biopsies from 4 patients suffering from non-obstructive azoospermia and from 4 patients with active spermatogenesis were compared. 414 genes in the caput epididymides were differentially regulated in infertile men by at least a 2-fold change as compared to the fertile men. Keywords: Comparison of infertile and fertile caput epididymides
2007-10-05 | GSE9194 | GEO
Project description:The hypothesis that male michrochimerism in eutopic endometrium is a factor for endometriosis, as indicated by indirect evidence was examined in endometrial samples from control (Group 1) and stage IV ovarian endometriosis (Group 2), either fertile (Group 1A and 2A) or Infertile (Group 1B and 2B) pateints. 6 coding and 10 non-coding genes showed bi-modal pattern of expression characterised by low expression in samples obtained from fertile patients and high expressions in infertile patients. Several coding and non-coding MSY-linked genes displayed michrochimerism in form of presence of their respective DNA inserts along with their microarray-detectable expression in endometrium irrespective of fertility history and disease.
2019-02-26 | GSE120103 | GEO
Project description:Comparison of gene expression between a human epididymal cell line derived from the caput epididymidis of a fertile patient and another one derived from the caput epididymidis of an obstructive azoospermic patient
| PRJNA126413 | ENA
Project description:Transcriptional profiling of human epididymal cell lines FHCE1 and IHCE1 respectively derived from the caput epididymidis of a fertile and an obstructive azoospermic patient. These two cell lines are comprised of homogenous populations of principal cells immortalized with the SV40 Large T antigen. Goal was to determine if cell junctions are impaired in this type of male infertility.
2010-06-01 | GSE21391 | GEO
Project description:Transcriptional profiling of human epididymal cell lines FHCE1 and IHCE1 respectively derived from the caput epididymidis of a fertile and an obstructive azoospermic patient. These two cell lines are comprised of homogenous populations of principal cells immortalized with the SV40 Large T antigen. Goal was to determine if cell junctions are impaired in this type of male infertility. Two-condition experiment, FHCE1 vs. IHCE1 cells. Replicates: 3 replicates from each cell line.
2010-06-08 | E-GEOD-21391 | biostudies-arrayexpress
Project description:Study question: Can region-specific transcriptional profiling of the epididymis from fertile and sub-fertile bulls predict the aetiology of fertility/subfertility in males? Summary answer:The highly regulated gene expression along the bovine epididymis is affected by the fertility status of bulls used for artificial insemination. What is known already: In mammals, sperm maturation and storage occur in the epididymis. Each epididymal segment has his own transcriptomic signature that modulates the intraluminal composition that governs sequential modifications of the maturing male gamete. Main results and the role of chance: Hierarchical clustering and Principal Component Analysis revealed a clear separation between caput, corpus and cauda epididymides. Some transcripts characterize a particular anatomical segment, whereas others are expressed in two out of three epididymal segments. GO analysis allowed deduction of specific functions played by each epididymal segment. The transcriptional profiles between fertile vs. sub-fertile conditions clustered most closely in the corpus and cauda segments, whereas the profiles in the caput segment were distinct between fertile and sub-fertile bulls. Of the differently expressed genes, ten (including AKAP4, SMCP, SPATA3, TCP11, ODF1, CTCFL, SPATA18, ADAM28, SORD and FAM161A) were found to exert functions related to reproductive systems and 5 genes (including DEAD, CYST11, DEFB119, DEFB124 and MX1) were found to be associated with the defence response. Limitations, reasons for caution: Further work is required to correlate these modulations of epididymal functions with sperm fertilizing ability in order to understand the aetiology of certain cases of idiopathic infertility in livestock and men. Wider implications of the findings: As fertility can be quantified in bulls used for artificial insemination, this species is a unique model to aid in the understanding of male fertility/subfertility in man.Our data provide a molecular characterization that will facilitate advances in understanding the involvement of epididymalphysiology in sub/infertility aetiology.
2017-03-31 | GSE96602 | GEO
Project description:Gene expression profiling of immortalized human mesenchymal stem cells with hTERT/E6/E7 transfected MSCs. hTERT may change gene expression in MSCs. Goal was to determine the gene expressions of immortalized MSCs.
2010-09-25 | GSE24338 | GEO
Project description:Worldwide, almost 100 millions men rely on vasectomy for male contraceptive purposes. Due to changes in their personal life, an increasing number of these men request surgical vasectomy reversal. Unfortunately, a significant proportion of these men remain infertile, despite the reestablishment of patent ducts, possibly due to epididymal damages caused by vasectomy. In animal models, vasectomy affects different epididymal physiological and biochemical parameters. However, consequences of vasectomy on these biochemical parameters are poorly understood at the molecular level. Furthermore, results obtained with animal models cannot by extrapolated to human to understand the consequences of vasectomy on epididymal functions. Gene expression pattern of epididimydis is highly regulated. We previously showed that the human epididymal expression pattern of two genes is altered under vasectomy. To complete the list of epididymal genes affected by vasectomy, we analysed the epididymal gene expression profile of three vasectomised donors, using the affymetrix human GeneChip U133 Plus 2. These results were compared with gene expression pattern of three ânormalâ donors. The data generated allowed the identification of many human epididymal genes for which the expression is modified under vasectomy. Qt-PCR and western-blot analysis of six selected genes known to be expressed in specific epididymal segments were performed. The Qt-PCR results confirmed the selected transcripts expression pattern deduced from microarrays data, while the western-blot analysis revealed some differences in protein distribution along the epididymis when compared to the transcripts expression pattern. These results contribute to the understanding of the causes of the persistent of infertility even though spermogram values suggest surgical success of vasovasostomy. Experiment Overall Design: Vasectomised epididimus, corpus caput and cauda segments
2008-10-25 | E-GEOD-9731 | biostudies-arrayexpress
Project description:Alterations in the presence of sperm RNAs have been identified using microarrays in teratozoospermic (abnormal morphology) or other types of infertile patients. However, so far no studies had been reported on the sperm RNA content using microarrays in asthenozoospermic patients (low motility). We started the present project to with the goal to characterize the RNA expression in asthenozoospermic infertile patients as compared to normozoospermic fertile controls. We selected four normal fertile donors and four severe asthenozoospermic infertile patients. Equal amounts of RNA were extracted from the sperm samples, subjected to different quality controls and hybridized to the Affymetrix U133 Plus version 2 arrays.
2012-03-15 | E-GEOD-34514 | biostudies-arrayexpress