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Sahota JS, Sharma B, Guleria K, Sambyal V. Candidate genes for infertility: an in-silico study based on cytogenetic analysis. BMC Med Genomics 2022; 15:170. [PMID: 35918717 PMCID: PMC9347124 DOI: 10.1186/s12920-022-01320-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 07/22/2022] [Indexed: 11/26/2022] Open
Abstract
Background The cause of infertility remains unclear in a significant proportion of reproductive-age couples who fail to conceive naturally. Chromosomal aberrations have been identified as one of the main genetic causes of male and female infertility. Structural chromosomal aberrations may disrupt the functioning of various genes, some of which may be important for fertility. The present study aims to identify candidate genes and putative functional interaction networks involved in male and female infertility using cytogenetic data from cultured peripheral blood lymphocytes of infertile patients. Methods Karyotypic analyses was done in 201 infertile patients (100 males and 101 females) and 201 age and gender matched healthy controls (100 males and 101 females) after 72 h peripheral lymphocyte culturing and GTG banding, followed by bioinformatic analysis using Cytoscape v3.8.2 and Metascape. Results Several chromosomal regions with a significantly higher frequency of structural aberrations were identified in the infertile males (5q2, 10q2, and 17q2) and females (6q2, 16q2, and Xq2). Segregation of the patients based on type of infertility (primary v/s secondary infertility) led to the identification of chromosomal regions with a significantly higher frequency of structural aberrations exclusively within the infertile males (5q2, 17q2) and females (16q2) with primary infertility. Cytoscape identified two networks specific to these regions: a male specific network with 99 genes and a female specific network with 109 genes. The top enriched GO terms within the male and female infertility networks were “skeletal system morphogenesis” and “mRNA transport” respectively. PSME3, PSMD3, and CDC27 were the top 3 hub genes identified within the male infertility network. Similarly, UPF3B, IRF8, and PSMB1 were the top 3 hub genes identified with the female infertility network. Among the hub genes identified in the male- and female-specific networks, PSMB1, PSMD3, and PSME3 are functional components of the proteasome complex. These hub genes have a limited number of reports related to their respective roles in maintenance of fertility in mice model and humans and require validation in further studies. Conclusion The candidate genes predicted in the present study can serve as targets for future research on infertility. Supplementary Information The online version contains supplementary material available at 10.1186/s12920-022-01320-x.
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Affiliation(s)
- Jatinder Singh Sahota
- Department of Human Genetics, Cytogenetics Laboratory, Guru Nanak Dev University (GNDU), Amritsar, Punjab, 143005, India
| | - Bhavna Sharma
- Department of Human Genetics, Cytogenetics Laboratory, Guru Nanak Dev University (GNDU), Amritsar, Punjab, 143005, India
| | - Kamlesh Guleria
- Department of Human Genetics, Cytogenetics Laboratory, Guru Nanak Dev University (GNDU), Amritsar, Punjab, 143005, India
| | - Vasudha Sambyal
- Department of Human Genetics, Cytogenetics Laboratory, Guru Nanak Dev University (GNDU), Amritsar, Punjab, 143005, India.
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Salamun V, Rizzo M, Lovrecic L, Hocevar K, Papler Burnik T, Janez A, Jensterle M, Vrtacnik Bokal E, Peterlin B, Maver A. The Endometrial Transcriptome of Metabolic and Inflammatory Pathways During the Window of Implantation Is Deranged in Infertile Obese Polycystic Ovarian Syndrome Women. Metab Syndr Relat Disord 2022; 20:384-394. [PMID: 35834645 DOI: 10.1089/met.2021.0149] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Introduction and Aim: Obese women with polycystic ovarian syndrome (PCOS) have a reduced rate of spontaneous conception even when their cycles are ovulatory. Endometrial receptivity is an important factor for poor implantation and increased miscarriage rates. Mechanisms in which both pathologies modify the endometrium are not fully clarified. The aim of our study was to compare the endometrial transcriptomic profiles between infertile obese PCOS (O-PCOS) women and infertile normal weight subjects during the window of implantation in ovulatory menstrual cycles. Methods: We conducted a prospective transcriptomic analysis of the endometrium using RNA sequencing. In this way, potential endometrial mechanisms leading to the poor reproductive outcome in O-PCOS patients could be characterized. Endometrial samples during days 21-23 of the menstrual cycle were collected from infertile O-PCOS women (n = 11) and normal weight controls (n = 10). Subgroups were defined according to the ovulatory/anovulatory status in the natural cycles, and O-PCOS women were grouped into the O-PCOS ovulatory (O-PCOS-ovul) subgroup. RNA isolation, sequencing with library reparation, and subsequent RNAseq data analysis were performed. Results: Infertile O-PCOS patients had 610 differentially expressed genes (DEGs), after adjustment for multiple comparisons with normal weight infertile controls, related to obesity (MXRA5 and ECM1), PCOS (ADAMTS19 and SLC18A2), and metabolism (VNN1 and PC). In the ovulatory subgroup, no DEGs were found, but significant differences in canonical pathways and the upstream regulator were revealed. According to functional and upstream analyses of ovulatory subgroup comparisons, the most important biological processes were related to inflammation (TNFR1 signaling), insulin signaling (insulin receptor signaling and PI3/AKT), fatty acid metabolism (stearate biosynthesis I and palmitate biosynthesis I), and lipotoxicity (unfolded protein response pathway). Conclusions: We demonstrated that endometrial transcription in ovulatory O-PCOS patients is deranged in comparison with the control ovulatory endometrium. The most important pathways of differentiation include metabolism and inflammation. These processes could also represent potential mechanisms for poor embryo implantation, which prevent the development of a successful pregnancy. ClinicalTrials.gov ID: NCT03353948.
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Affiliation(s)
- Vesna Salamun
- Division of Obstetrics and Gynecology, Department of Human Reproduction, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Manfredi Rizzo
- Division of Endocrinology, Diabetes, and Metabolism, University of South Carolina School of Medicine, Columbia, South Carolina, USA.,Department of Laboratory Medicine, DIBIMIS, University of Palermo, Italy
| | - Luca Lovrecic
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.,Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Keli Hocevar
- Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Tanja Papler Burnik
- Division of Obstetrics and Gynecology, Department of Human Reproduction, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Andrej Janez
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.,Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Mojca Jensterle
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.,Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Eda Vrtacnik Bokal
- Division of Obstetrics and Gynecology, Department of Human Reproduction, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Borut Peterlin
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.,Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Ales Maver
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.,Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia
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Madar IH, Sultan G, Tayubi IA, Hasan AN, Pahi B, Rai A, Sivanandan PK, Loganathan T, Begum M, Rai S. Identification of marker genes in Alzheimer's disease using a machine-learning model. Bioinformation 2021; 17:348-355. [PMID: 34234395 PMCID: PMC8225597 DOI: 10.6026/97320630017348] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 02/24/2021] [Accepted: 02/27/2021] [Indexed: 11/23/2022] Open
Abstract
Alzheimer's Disease (AD) is one of the most common causes of dementia, mostly affecting the elderly population. Currently, there is no proper diagnostic tool or method available for the detection of AD. The present study used two distinct data sets of AD genes, which could be potential biomarkers in the diagnosis. The differentially expressed genes (DEGs) curated from both datasets were used for machine learning classification, tissue expression annotation and co-expression analysis. Further, CNPY3, GPR84, HIST1H2AB, HIST1H2AE, IFNAR1, LMO3, MYO18A, N4BP2L1, PML, SLC4A4, ST8SIA4, TLE1 and N4BP2L1 were identified as highly significant DEGs and exhibited co-expression with other query genes. Moreover, a tissue expression study found that these genes are also expressed in the brain tissue. In addition to the earlier studies for marker gene identification, we have considered a different set of machine learning classifiers to improve the accuracy rate from the analysis. Amongst all the six classification algorithms, J48 emerged as the best classifier, which could be used for differentiating healthy and diseased samples. SMO/SVM and Logit Boost further followed J48 to achieve the classification accuracy.
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Affiliation(s)
- Inamul Hasan Madar
- Department of Biotechnology, School of Biotechnology and Genetic Engineering, Bharathidasan University, Tiruchirappalli - 620024, Tamil Nadu, India
| | - Ghazala Sultan
- Department of Computer Science, Faculty of Science, Aligarh Muslim University, Aligarh - 202002, Uttar Pradesh, India
| | - Iftikhar Aslam Tayubi
- Faculty of Computing and Information Technology, Rabigh, King Abdulaziz University, Jeddah - 21589, Kingdom of Saudi Arabia
| | - Atif Noorul Hasan
- Department of Computer Science, Jamia Millia Islamia (Central University), Jamia Nagar - 110025, New Delhi, India
| | - Bandana Pahi
- Department of Bioinformatics, Sambalpur University, Jyoti Vihar, Burla, Sambalpur - 768019, Odisha, India
| | - Anjali Rai
- Department of Biotechnology and bioinformatics, Mahila Maha Vidyalaya , Banaras Hindu University, Varanasi - 221005, Uttar Pradesh, India
| | - Pravitha Kasu Sivanandan
- Department of Bioinformatics, School of Biosciences, Sri Krishna Arts and Science College, Coimbatore - 641008, Tamil Nadu, India
| | - Tamizhini Loganathan
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, IIT Madras and Initiative for Biological Systems Engineering (IBSE), Chennai - 600036, Tamil Nadu, India
| | - Mahamuda Begum
- PG and Research Department of Biotechnology, Marudhar Kesari Jain College for Women, Vaniyambadi - 635751, Tamil Nadu, India
| | - Sneha Rai
- Department of Biological Sciences and Engineering, Netaji Subhas Institute of Technology, Dwarka - 110078, New Delhi, India
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Dai X, Fu G, Reese R. Detecting PCOS susceptibility loci from genome-wide association studies via iterative trend correlation based feature screening. BMC Bioinformatics 2020; 21:177. [PMID: 32366216 PMCID: PMC7199379 DOI: 10.1186/s12859-020-3492-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 04/13/2020] [Indexed: 01/18/2023] Open
Abstract
Background Feature screening plays a critical role in handling ultrahigh dimensional data analyses when the number of features exponentially exceeds the number of observations. It is increasingly common in biomedical research to have case-control (binary) response and an extremely large-scale categorical features. However, the approach considering such data types is limited in extant literature. In this article, we propose a new feature screening approach based on the iterative trend correlation (ITC-SIS, for short) to detect important susceptibility loci that are associated with the polycystic ovary syndrome (PCOS) affection status by screening 731,442 SNP features that were collected from the genome-wide association studies. Results We prove that the trend correlation based screening approach satisfies the theoretical strong screening consistency property under a set of reasonable conditions, which provides an appealing theoretical support for its outperformance. We demonstrate that the finite sample performance of ITC-SIS is accurate and fast through various simulation designs. Conclusion ITC-SIS serves as a good alternative method to detect disease susceptibility loci for clinic genomic data.
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Affiliation(s)
- Xiaotian Dai
- Department of Mathematical Sciences, SUNY Binghamton University, New York, USA
| | - Guifang Fu
- Department of Mathematical Sciences, SUNY Binghamton University, New York, USA.
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Holdsworth-Carson SJ, Chung J, Sloggett C, Mortlock S, Fung JN, Montgomery GW, Dior UP, Healey M, Rogers PA, Girling JE. Obesity does not alter endometrial gene expression in women with endometriosis. Reprod Biomed Online 2020; 41:113-118. [PMID: 32456970 DOI: 10.1016/j.rbmo.2020.03.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 01/30/2020] [Accepted: 03/25/2020] [Indexed: 12/31/2022]
Abstract
RESEARCH QUESTION Does obesity affect endometrial gene expression in women with endometriosis, specifically women with stage I disease? DESIGN Differential gene expression analysis was conducted on endometrium from women with and without endometriosis (n = 169). Women were diagnosed after surgical visualization and staged according to the revised American Society for Reproductive Medicine (stage I-IV). Women were grouped by body mass index (BMI) (kg/m2) as underweight, normal, pre-obese or obese. After accounting for menstrual cycle stage, endometrial gene expression was analysed by BMI (continuous and grouped) in women with endometriosis, and in non-endometriosis controls. RESULTS No significant interaction effect was found between BMI and endometriosis status on endometrial gene expression. We have previously reported that obese women with endometriosis have a reduced incidence of stage I disease; however, stratifying our analysis into stage I endometriosis versus combined II, III and IV endometriosis failed to reveal any differentially expressed endometrial genes between normal, pre-obese and obese patients. CONCLUSIONS Despite obesity having deleterious effects on endometrial gene expression in other gynaecological pathologies, e.g. endometrial cancer and polycystic ovary syndrome, our results do not support an association between BMI and altered endometrial gene expression in women with or without endometriosis.
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Affiliation(s)
- Sarah J Holdsworth-Carson
- Department of Obstetrics and Gynhaecology, University of Melbourne and Gynaecology Research Centre, Level 7, Cnr Grattan St and Flemington Rd, Royal Women's Hospital, Parkville, Victoria 3052, Australia.
| | - Jessica Chung
- Melbourne Bioinformatics, University of Melbourne, 187 Grattan Street, Carlton, Victoria 3053, Australia
| | - Clare Sloggett
- Melbourne Bioinformatics, University of Melbourne, 187 Grattan Street, Carlton, Victoria 3053, Australia
| | - Sally Mortlock
- The Institute for Molecular Bioscience, University of Queensland, Brisbane, 306 Carmody Road, St Lucia, Queensland 4072, Australia
| | - Jenny N Fung
- Endometriosis Center, Department of Obstetrics & Gynecology, Hadassah Medical Center, Kiryat Hadassah, POB 12000, Jerusalem, 91120, Israel
| | - Grant W Montgomery
- The Institute for Molecular Bioscience, University of Queensland, Brisbane, 306 Carmody Road, St Lucia, Queensland 4072, Australia
| | - Uri P Dior
- Endometriosis Center, Department of Obstetrics & Gynecology, Hadassah Medical Center, Kiryat Hadassah, POB 12000, Jerusalem, 91120, Israel
| | - Martin Healey
- Department of Obstetrics and Gynhaecology, University of Melbourne and Gynaecology Research Centre, Level 7, Cnr Grattan St and Flemington Rd, Royal Women's Hospital, Parkville, Victoria 3052, Australia
| | - Peter Aw Rogers
- Department of Obstetrics and Gynhaecology, University of Melbourne and Gynaecology Research Centre, Level 7, Cnr Grattan St and Flemington Rd, Royal Women's Hospital, Parkville, Victoria 3052, Australia
| | - Jane E Girling
- Department of Obstetrics and Gynhaecology, University of Melbourne and Gynaecology Research Centre, Level 7, Cnr Grattan St and Flemington Rd, Royal Women's Hospital, Parkville, Victoria 3052, Australia; Department of Anatomy, University of Otago, 270 Great King Street, Dunedin 9016, New Zealand
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Islam MR, Ahmed ML, Kumar Paul B, Bhuiyan T, Ahmed K, Moni MA. Identification of the core ontologies and signature genes of polycystic ovary syndrome (PCOS): A bioinformatics analysis. INFORMATICS IN MEDICINE UNLOCKED 2020. [DOI: 10.1016/j.imu.2020.100304] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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7
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Sultan G, Zubair S, Tayubi IA, Dahms HU, Madar IH. Towards the early detection of ductal carcinoma (a common type of breast cancer) using biomarkers linked to the PPAR(γ) signaling pathway. Bioinformation 2019; 15:799-805. [PMID: 31902979 PMCID: PMC6936658 DOI: 10.6026/97320630015799] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 11/28/2019] [Accepted: 12/07/2019] [Indexed: 02/08/2023] Open
Abstract
Breast cancer is a leading cause of morbidity and mortality among women comprising about 12% females worldwide. The underlying alteration in the gene expression, molecular mechanism and metabolic pathways responsible for incidence and progression of breast tumorigenesis are yet not completely understood. In the present study, potential biomarker genes involved in the early progression for early diagnosis of breast cancer has been detailed. Regulation and Gene profiling of Ductal Carcinoma In-situ (DCIS), Invasive Ductal Carcinoma (IDC) and healthy samples have been analyzed to follow their expression pattern employing normalization, statistical calculation, DEGs annotation and Protein-Protein Interaction (PPI) network. We have performed a comparative study on differentially expressed genes among Healthy vs DCIS, Healthy vsIDC and DCIS vs IDC. We found MCM102 and SLC12A8as consistently over-expressed and LEP, SORBS1, SFRP1, PLIN1, FABP4, RBP4, CD300LG, ID4, CRYAB, ECRG4, G0S2, FMO2, ADAMTS5, CAV1, CAV2, ABCA8, MAMDC2, IGFBP6, CLDN11, TGFBR3as under-expressed genes in all the 3 conditions categorized for pre-invasive and invasive ductal breast carcinoma. These genes were further studied for the active pathways where PPAR(γ) signaling pathway was found to be significantly involved. The gene expression profile database can be a potential tool in the early diagnosis of breast cancer.
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Affiliation(s)
- Ghazala Sultan
- Department of Computer Science, Aligarh Muslim University, Aligarh, Uttar Pradesh 202001, India
| | - Swaleha Zubair
- Department of Computer Science, Aligarh Muslim University, Aligarh, Uttar Pradesh 202001, India
| | - Iftikhar Aslam Tayubi
- Faculty of Computing and Information Technology, Rabigh, King Abdulaziz University, Jeddah 21911, Saudi Arabia
| | - Hans-Uwe Dahms
- Department of Computer Science, Aligarh Muslim University, Aligarh, Uttar Pradesh 202001, India
| | - Inamul Hasan Madar
- Department of Biomedical Science and Environmental Biology, KMU-Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Biotechnology, School of Biotechnology and Genetic Engineering, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India
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