1
|
Psilopatis I, Vrettou K, Nousiopoulou E, Palamaris K, Theocharis S. The Role of Peroxisome Proliferator-Activated Receptors in Polycystic Ovary Syndrome. J Clin Med 2023; 12:jcm12082912. [PMID: 37109247 PMCID: PMC10141215 DOI: 10.3390/jcm12082912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/11/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) constitutes the most common endocrine disorder in women of reproductive age. Patients usually suffer from severe menstrual irregularities, skin conditions, and insulin resistance-associated health conditions. Peroxisome proliferator-activated receptors (PPARs) are nuclear receptor proteins that regulate gene expression. In order to investigate the role of PPARs in the pathophysiology of PCOS, we conducted a literature review using the MEDLINE and LIVIVO databases and were able to identify 74 relevant studies published between 2003 and 2023. Different study groups reached contradictory conclusions in terms of PPAR expression in PCOS. Interestingly, numerous natural agents were found to represent a novel, potent anti-PCOS treatment alternatives. In conclusion, PPARs seem to play a significant role in PCOS.
Collapse
Affiliation(s)
- Iason Psilopatis
- Department of Gynecology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias Street, Bld 10, Goudi, 11527 Athens, Greece
| | - Kleio Vrettou
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias Street, Bld 10, Goudi, 11527 Athens, Greece
| | - Eleni Nousiopoulou
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias Street, Bld 10, Goudi, 11527 Athens, Greece
| | - Kostas Palamaris
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias Street, Bld 10, Goudi, 11527 Athens, Greece
| | - Stamatios Theocharis
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias Street, Bld 10, Goudi, 11527 Athens, Greece
| |
Collapse
|
2
|
Nouri N, Shareghi-Oskoue O, Aghebati-Maleki L, Danaii S, Ahmadian Heris J, Soltani-Zangbar MS, Kamrani A, Yousefi M. Role of miRNAs interference on ovarian functions and premature ovarian failure. Cell Commun Signal 2022; 20:198. [PMID: 36564840 PMCID: PMC9783981 DOI: 10.1186/s12964-022-00992-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 10/22/2022] [Indexed: 12/24/2022] Open
Abstract
Premature ovarian failure is a to some extent unknown and intricate problem with diverse causes and clinical manifestations. The lack of ovarian sex hormones presumably is effective in the occurrence of ovarian failure. Our progress in this field has been very little despite undertaken scientific research endeavors; scholars still are trying to understand the explanation of this dilemmatic medical condition. In contrast, the practice of clinical medicine has made meaningful strides in providing assurance to the women with premature ovarian insufficiency that their quality of life as well as long-term health can be optimized through timely intervention. Very recently Scientists have investigated the regulating effects of small RNA molecules on steroidogenesis apoptosis, ovulation, gonadal, and corpus luteum development of ovaries. In this literature review, we tried to talk over the mechanisms of miRNAs in regulating gene expression after transcription in the ovary. Video abstract.
Collapse
Affiliation(s)
- Narjes Nouri
- grid.412888.f0000 0001 2174 8913Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran ,grid.412888.f0000 0001 2174 8913Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran ,grid.412888.f0000 0001 2174 8913Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, PO Box: 516-6615573, Tabriz, Iran
| | - Olduz Shareghi-Oskoue
- grid.412888.f0000 0001 2174 8913Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran ,grid.412888.f0000 0001 2174 8913Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, PO Box: 516-6615573, Tabriz, Iran
| | - Leili Aghebati-Maleki
- grid.412888.f0000 0001 2174 8913Immunology Research Center, Tabriz University of Medical Sciences, PO Box: 516-6615573, Tabriz, Iran
| | - Shahla Danaii
- Gynecology Department, Eastern Azerbaijan ACECR ART Center, Eastern Azerbaijan Branch of ACECR, Tabriz, Iran
| | - Javad Ahmadian Heris
- grid.412888.f0000 0001 2174 8913Department of Allergy and Clinical Immunology, Pediatric Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Sadegh Soltani-Zangbar
- grid.412888.f0000 0001 2174 8913Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran ,grid.412888.f0000 0001 2174 8913Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, PO Box: 516-6615573, Tabriz, Iran
| | - Amin Kamrani
- grid.412888.f0000 0001 2174 8913Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran ,grid.412888.f0000 0001 2174 8913Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, PO Box: 516-6615573, Tabriz, Iran
| | - Mehdi Yousefi
- grid.412888.f0000 0001 2174 8913Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran ,grid.412888.f0000 0001 2174 8913Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, PO Box: 516-6615573, Tabriz, Iran ,grid.412888.f0000 0001 2174 8913Research Center for Integrative Medicine in Aging, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
3
|
Muccee F, Bijou O, Harakeh S, Adawiyah R, Sayyed RZ, Haghshenas L, Alshehri D, Ansari MJ, Ghazanfar S. In-Silico Investigation of Effects of Single-Nucleotide Polymorphisms in PCOS-Associated CYP11A1 Gene on Mutated Proteins. Genes (Basel) 2022; 13:genes13071231. [PMID: 35886014 PMCID: PMC9317558 DOI: 10.3390/genes13071231] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 02/04/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) is a reproductive disorder with multiple etiologies, mainly characterized by the excess production of androgens. It is equally contributed to by genes and environment. The CYP11A1 gene is imperative for steroidogenesis, so any dysregulation or mutation in this gene can lead to PCOS pathogenesis. Therefore, nucleotide diversity in this gene can be helpful in spotting the likelihood of developing PCOS. The present study was initiated to investigate the effect of single nucleotide polymorphisms in human CYP11A1 gene on different attributes of encoded mutated proteins, i.e., sub-cellular localization, ontology, half-life, isoelectric point, instability index, aliphatic index, extinction coefficient, 3-D and 2-D structures, and transmembrane topology. For this purpose, initially coding sequence (CDS) and single nucleotide polymorphisms (SNPs) were retrieved for the desired gene from Ensembl followed by translation of CDS using EXPASY tool. The protein sequence obtained was subjected to different tools including CELLO2GO, ProtParam, PHYRE2, I-Mutant, SIFT, and PolyPhen. It was found that out of seventy-eight SNPs analyzed in this project, seventeen mutations, i.e., rs750026801 in exon 1, rs776056840, rs779154292 and rs1217014229 in exon 2, rs549043326 in exon 3, rs755186597 in exon 4, rs1224774813, rs757299093 and rs1555425667 in exon 5, rs1454328072 in exon 7, rs762412759 and rs755975808 in exon 8, and rs754610565, rs779413653, rs765916701, rs1368450780, and rs747901197 in exon 9 considerably altered the structure, sub-cellular localization, and physicochemical characteristics of mutated proteins. Among the fifty-nine missense SNPs documented in present study, fifty-five and fifty-three were found to be deleterious according to SIFT and PolyPhen tools, respectively. Forty-nine missense mutations were analyzed to have a decreasing effect on the stability of mutant proteins. Hence, these genetic variants can serve as potential biomarkers in human females for determining the probability of being predisposed to PCOS.
Collapse
Affiliation(s)
- Fatima Muccee
- School of Biochemistry and Biotechnology, University of Punjab, Lahore 52254, Pakistan
- Correspondence: ; Tel.: +92-0331-4767254
| | - Osama Bijou
- Obstetrics and Gynaecology Department, Faculty of Medicine (FM), King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Steve Harakeh
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Yousef Abdul Latif Jameel Scientific Chair of Prophetic Medicine Application, Faculty of Medicine (FM), King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Rabi’atul Adawiyah
- Faculty of Health and Life Sciences, INTI International University, Nilai 71800, Negeri Sembilan, Malaysia;
| | - R. Z. Sayyed
- Department of Microbiology, P.S.G.V.P. Mandal’s S I Patil Arts, G B Patel Science and S.T.K.V.S. Sangh Commerce College, Shahada 425409, India;
| | - Leila Haghshenas
- Department of Molecular Genetics, Postdoc Association Member of Harvard Medical School, Boston, MA 02138, USA;
| | - Dikhnah Alshehri
- Department of Biology, Faculty of Science, Tabuk University, Tabuk 71491, Saudi Arabia;
| | - Mohammad Javed Ansari
- Department of Botany, Hindu College Moradabad, Mahatma Jyotiba Phule Rohilkhand University, Bareilly 244001, India;
| | - Shakira Ghazanfar
- National Institute for Genomics Advanced Biotechnology (NIGAB), National Agricultural Research Centre (NARC), Islamabad 45500, Pakistan;
| |
Collapse
|
4
|
Sharma P, Bilkhiwal N, Chaturvedi P, Kumar S, Khetarpal P. Potential environmental toxicant exposure, metabolizing gene variants and risk of PCOS-A systematic review. Reprod Toxicol 2021; 103:124-132. [PMID: 34126208 DOI: 10.1016/j.reprotox.2021.06.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 05/12/2021] [Accepted: 06/02/2021] [Indexed: 10/21/2022]
Abstract
Exposure of environmental toxicants such as potentially toxic metals and pesticides have largely been attributed to produce adverse effects on general women's health and to be more precise on the reproductive system. In order to explore exposure of toxicants and metabolizing gene variants as risk factor for polycystic ovarian syndrome (PCOS), literature search was carried out using the databases PubMed, Central Cochrane Library, Google Scholar, Science Direct with appropriate keywords upto 6 December 2020. While most of the studies indicate higher serum Cu concentration and lower concentration of Mn as risk factor, studies also report presence of higher pesticide concentration in PCOS women. Genes such as MTHFR, CYPs participate in the metabolism of toxicants and may show different response due to underlying genetic variants. Thus, toxicant exposure are to some extent responsible for the pathogenesis of syndrome through oxidative stress and endocrine disruption, but the susceptibility may vary due to the underlying genetic polymorphism of the exposed population.
Collapse
Affiliation(s)
- Priya Sharma
- Department of Human Genetics and Molecular Medicine, School of Health Sciences, Central University of Punjab, Bathinda, 151401, India
| | - Nisha Bilkhiwal
- Department of Human Genetics and Molecular Medicine, School of Health Sciences, Central University of Punjab, Bathinda, 151401, India
| | - Pragya Chaturvedi
- Department of Human Genetics and Molecular Medicine, School of Health Sciences, Central University of Punjab, Bathinda, 151401, India
| | - Sachin Kumar
- Department of Mathematics and Statistics, School of Basic and Applied Sciences, Central University of Punjab, Bathinda, 151401, India.
| | - Preeti Khetarpal
- Department of Human Genetics and Molecular Medicine, School of Health Sciences, Central University of Punjab, Bathinda, 151401, India.
| |
Collapse
|
5
|
Giandalia A, Pappalardo MA, Russo GT, Romeo EL, Alibrandi A, Di Bari F, Vita R, Cucinotta D, Benvenga S. Influence of peroxisome proliferator-activated receptor-γ exon 2 and exon 6 and insulin receptor substrate (IRS)-1 Gly972Arg polymorphisms on insulin resistance and beta-cell function in southern mediterranean women with polycystic ovary syndrome. JOURNAL OF CLINICAL AND TRANSLATIONAL ENDOCRINOLOGY 2018; 13:1-8. [PMID: 30013936 PMCID: PMC6022250 DOI: 10.1016/j.jcte.2018.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 05/21/2018] [Accepted: 05/23/2018] [Indexed: 11/28/2022]
Abstract
Background and objective The Pro12Ala (exon 2) and His447His (exon 6) polymorphisms of PPAR-γ, and Gly972Arg polymorphism of IRS-1 have been implicated in insulin resistance (IR) and adiposity. Our aim was to investigate the influence of these polymorphisms on metabolic features of polycystic ovary syndrome (PCOS). Methods Fifty-three PCOS women and 26 control women underwent a clinical and biochemical evaluation, including a 75-g oral glucose tolerance test. Insulin secretion and insulin sensitivity indices were calculated. Results Frequencies of PPAR-γ polymorphisms did not differ from those predicted by the Hardy-Weinberg equilibrium. Instead, the IRS-1 Gly972Arg allele was significantly more frequent in the PCOS group compared to controls. The most frequent allelic combinations were IRS1+/exon2-/exon6- (which prevailed in PCOS) and IRS-1-/exon2-/exon6- (which prevailed in controls). Among PCOS women, compared with the wild type patients, carriers of the Gly972Arg IRS-1 allele had lower E2 levels, while carriers of the Pro12Ala PPAR-γ (exon 2) allele had lower free testosterone levels. No other significant relationships were noted. When compared with the wild type, in PCOS group IR and beta-cell function were: (i) trendwise greater in carriers of the variant IRS-1 allele; (ii) trendwise lower in carriers of the variant PPAR-γ exon 6 allele; (iii) significantly lower in carriers of the variant PPAR-γ exon 2 allele. Conclusions Our data support the protective influence of PPAR-γ-exon 2 and exon 6 variants on IR and beta cell function, whereas IRS-1 polymorphism is associated with an unfavorable metabolic profile. However, these associations do not fully explain the high metabolic risk associated with PCOS.
Collapse
Key Words
- 17-OHP, 17-hydroxyprogesterone
- AE-PCOS, Androgen Excess and Polycystic Ovary Syndrome Society
- BMI, body mass index
- DI, disposition index
- E2, 17β-estradiol
- FSH, follicular stimulating hormone
- HDL, high-density lipoprotein
- HOMA-IR, homeostasis model assessment
- IGI, insulinogenic index
- IRS, insulin receptor substrate
- Insulin receptor substrate-1
- LDL, low-density lipoprotein
- LH, luteinizing hormone
- OGTT, oral glucose tolerance test
- PCOS, polycystic ovary syndrome
- PCR, polymerase chain reaction
- PPAR-γ, peroxisome proliferator activated receptor-γ
- Peroxisome proliferator-activated-receptor-gamma
- Polycystic ovary syndrome
- Polymorphisms
- SHBG, sex hormone binding globulin
Collapse
Affiliation(s)
- Annalisa Giandalia
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | | | - Giuseppina T Russo
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Elisabetta L Romeo
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Angela Alibrandi
- Department of Economics, University of Messina, Viale Gazzi, 98125 Messina, Italy
| | - Flavia Di Bari
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Roberto Vita
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Domenico Cucinotta
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Salvatore Benvenga
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy.,Master Program on Childhood, Adolescent and Women's Endocrine Health, University of Messina, Viale Gazzi, 98125 Messina, Italy.,Interdepartmental Program of Molecular & Clinical Endocrinology, and Women's Endocrine Health, University Hospital Policlinico G. Martino, Viale Gazzi, 98125 Messina, Italy
| |
Collapse
|
6
|
Ilie IR. Advances in PCOS Pathogenesis and Progression-Mitochondrial Mutations and Dysfunction. Adv Clin Chem 2018; 86:127-155. [PMID: 30144838 DOI: 10.1016/bs.acc.2018.05.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Polycystic ovary syndrome (PCOS) is a common female endocrine disorder, which still remains largely unsolved in terms of etiology and pathogenesis despite important advances in our understanding of its genetic, epigenetic, or environmental factor implications. It is a heterogeneous disease, frequently associated with insulin resistance, chronic inflammation, and oxidative stress and probably accompanied with subclinical cardiovascular disease (CVD) and some malignant lesions as well, such as endometrial cancer. Discrepancies in the clinical phenotype and progression of PCOS exist between different population groups, which nuclear genetic studies have so far failed to explain. Over the last years, mitochondrial dysfunction has been increasingly recognized as an important contributor to an array of diseases. Because mitochondria are under the dual genetic control of both the mitochondrial and nuclear genomes, mutations within either DNA molecule may result in deficiency in respiratory chain function that leads to a reduced ability to produce cellular adenosine-5'-triphosphate and to an excessive production of reactive oxygen species. However, the association between variants in mitochondrial genome, mitochondrial dysfunction, and PCOS has been investigated to a lesser extent. May mutations in mitochondrial DNA (mtDNA) become an additional target of investigations on the missing PCOS heritability? Are mutations in mtDNA implicated in the initiation and progression of PCOS complications, e.g., CVDs, diabetes mellitus, cancers?
Collapse
Affiliation(s)
- Ioana R Ilie
- Department of Endocrinology, University of Medicine and Pharmacy 'Iuliu-Hatieganu', Cluj-Napoca, Romania; E-mail:
| |
Collapse
|
7
|
Reddy TV, Govatati S, Deenadayal M, Shivaji S, Bhanoori M. Polymorphisms in the TFAM and PGC1-α genes and their association with polycystic ovary syndrome among South Indian women. Gene 2017; 641:129-136. [PMID: 29030253 DOI: 10.1016/j.gene.2017.10.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/13/2017] [Accepted: 10/06/2017] [Indexed: 01/15/2023]
Abstract
We investigated the link between polymorphisms in genes involved in mitochondrial biogenesis, mitochondrial transcription factor A (TFAM) and Peroxisome proliferator activated receptor gamma coactivator-1 alpha (PGC-1α) and further studied the role of these genes on the pathophysiology of polycystic ovary syndrome (PCOS). This case-control study was carried out in 118 PCOS cases and 110 controls. In the present study we genotyped three polymorphisms of PGC1-α gene (rs8192678-Gly482Ser, rs13131226 and rs2970856) and polymorphism of TFAM gene (rs1937-+35G/C) by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis. In addition, to better understand genetic contributions to the pathophysiology of PCOS, mtDNA copy number (MCN) was quantified using a qRT-PCR assay in the subjects. The results revealed that the distribution of genotypes and allele frequency of the PGC-1α Gly482Ser polymorphism in PCOS patients was statistically significant from those of the control group respectively (OR-2.488; 95% CI-1.0673 to 5.7998; P=0.047), (OR-1.6091; 95% CI-1.0955 to 2.3634; P=0.015) indicating that the presence of 'A' allele might confer risk to PCOS. Patients with the 'AA' genotype showed significantly lower levels of MCN compared with patients with other genotypes. In addition, patients carrying CT genotype of PGC1-α rs2970856 demonstrated significantly higher levels of LH (P=0.030) than TT and CC genotypes. In conclusion, our study indicates that carriers of the PGC-1α rs8192678 'Ser' allele have increased risk of developing PCOS.
Collapse
Affiliation(s)
- Tumu Venkat Reddy
- Department of Biochemistry, Osmania University, Hyderabad 500 007, India
| | - Suresh Govatati
- Department of Biochemistry, Osmania University, Hyderabad 500 007, India
| | - Mamata Deenadayal
- Infertility Institute and Research Centre (IIRC), Secunderabad, India.
| | - Sisinthy Shivaji
- Centre for Cellular and Molecular Biology (CCMB), Hyderabad 500 007, India.
| | - Manjula Bhanoori
- Department of Biochemistry, Osmania University, Hyderabad 500 007, India.
| |
Collapse
|
8
|
McGinnis LK, Luense LJ, Christenson LK. MicroRNA in Ovarian Biology and Disease. Cold Spring Harb Perspect Med 2015; 5:a022962. [PMID: 25986593 DOI: 10.1101/cshperspect.a022962] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
MicroRNAs (miRNAs) are posttranscriptional gene regulatory molecules that show regulated expression within ovarian tissue. Most research investigating miRNAs in the ovary has relied exclusively on in vitro analyses. In this review, we highlight those few studies in which investigators have illustrated an in vivo effect of miRNAs on ovarian function. We also provide a synopsis of how these small noncoding RNAs can impact ovarian disease. miRNAs have great potential as novel diagnostic biomarkers for the detection of ovarian disease and in the assisted reproductive technologies (ART) for selection of healthy viable oocytes and embryos.
Collapse
Affiliation(s)
- Lynda K McGinnis
- Department Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas 66160
| | - Lacey J Luense
- Epigenetics Program, Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Lane K Christenson
- Department Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas 66160
| |
Collapse
|
9
|
Qu J, Che Y, Xu P, Xia Y, Wu X, Wang Y. The Higher Response of Vascular Endothelial Growth Factor and Angiotensin-II to Human Chorionic Gonadotropin in Women with Polycystic Ovary Syndrome. INTERNATIONAL JOURNAL OF FERTILITY & STERILITY 2015; 8:373-8. [PMID: 25780518 PMCID: PMC4355923 DOI: 10.22074/ijfs.2015.4176] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2011] [Accepted: 10/27/2013] [Indexed: 11/30/2022]
Abstract
Background This research investigated the response of vascular active factors, vascular
endothelial growth factor (VEGF) and angiotensin-II (AT-II) to ovarian stimulation during 24 hours in patients with polycystic ovary syndrome (PCOS). Materials and Methods In this clinical trial study, 52 patients with PCOS and 8 control
cases were stimulated with human chorionic gonadotropin (HCG) on the 4th to 7th day
of the patients’ natural or induced menstrual cycles. We measured VEGF and AT-II by
radioimmunoassay before the injection (0 hour) and 3, 8, 12, 18 and 24 hours after the
stimulation. Results After ovarian stimulation, there was substantially higher level of VEGF in
typical PCOS patients than the other three groups at the 3 hour time point (p<0.05),
while there were no significant differences in VEGF at all the other time points
among the four groups. As for AT-II, before and at all time points after the ovarian
stimulation, it seemed that the AT-II levels in patients’ sera with different phenotypes of PCOS by the Rotterdam criteria were all higher than in the control group
although the differences were not statistically significant. The level of AT-II in typical PCOS patients was also significantly higher than the other three groups at the 3
hour time point (p<0.05), while no significant differences at all the other time points
among the four groups were observed. Conclusion The response to the stimulation varied among patients with different phenotypes of PCOS according to the Rotterdam criteria. Serum VEGF and AT-II were possible contributors to an increased risk of developing ovarian hyperstimulation syndrome
(OHSS) in patients with typical PCOS during the early follicular phase (3 hours) after
ovarian stimulation (Registration Number: NCT02265861).
Collapse
Affiliation(s)
- Junwei Qu
- Department of Gynecological Oncology Surgery, Jiangsu Cancer Hospital and Institute, Nanjing 210009, China
| | - Yena Che
- Translational Medicine Center and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing 210093, China
| | - Pei Xu
- Translational Medicine Center and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing 210093, China
| | - Yanjie Xia
- Translational Medicine Center and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing 210093, China
| | - Xiaoke Wu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Yong Wang
- Translational Medicine Center and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing 210093, China
| |
Collapse
|
10
|
Lakkakula BVKS, Thangavelu M, Godla UR. Genetic variants associated with insulin signaling and glucose homeostasis in the pathogenesis of insulin resistance in polycystic ovary syndrome: a systematic review. J Assist Reprod Genet 2013; 30:883-95. [PMID: 23794114 DOI: 10.1007/s10815-013-0030-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2013] [Accepted: 05/31/2013] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Polycystic ovary syndrome must be recognized as a serious issue due to its implication on long term health regardless of an individual's age. PCOS and insulin resistance are interlinked, as approximately 40 % of women with PCOS are insulin resistant. However, the detailed molecular basis for insulin resistance that is coupled with PCOS remains poorly understood. OBJECTIVE To review the published evidence that polymorphisms in genes that are involved in insulin secretion and action are associated with an increased risk of PCOS. METHODS We reviewed articles published through November 2012 which concerned polymorphisms of genes related to insulin signaling and glucose homeostasis as well as their associations with PCOS. The articles were identified via Medline searches. CONCLUSIONS No consistent evidence emerged of a strong association between the risk of PCOS and any known gene that is related to insulin signaling and glucose homeostasis. Moreover, recent genome-wide association studies are inconsistent in identifying the associations between PCOS and insulin metabolism genes. Many of the studies reviewed were limited by heterogeneity in the PCOS diagnosis and by not have having a sufficient number of study participants. Further studies are warranted to determine predisposing risk factors which could modify environmental factors and thus reduce the risk of PCOS. Large genome-wide association studies devoted solely to PCOS will be necessary to identify new candidate genes and proteins that are involved in PCOS risk.
Collapse
|
11
|
Shaikh N, Mukherjee A, Shah N, Meherji P, Mukherjee S. Peroxisome proliferator activated receptor gamma gene variants influence susceptibility and insulin related traits in Indian women with polycystic ovary syndrome. J Assist Reprod Genet 2013; 30:913-21. [PMID: 23748472 DOI: 10.1007/s10815-013-0025-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Accepted: 05/28/2013] [Indexed: 10/26/2022] Open
Abstract
PURPOSE Peroxisome proliferator activated receptor gamma (PPARγ), a transcription factor involved in glucose and lipid metabolism is one of the candidate genes associated with polycystic ovary syndrome (PCOS). We investigated individual and combined associations of Pro12Ala and His447His polymorphisms of PPARγ with PCOS susceptibility and its related traits (hyperinsulinemia, hyperandrogenemia and lipid parameters) in Indian women. METHOD Genotyping of PPARγ polymorphisms in this case-control study was performed in PCOS (n = 450) and age-matched controls (n = 300) by direct sequencing. Clinical, anthropometric, hormonal and metabolic parameters were estimated in 275 women with PCOS and 169 controls. Chi-square test was used to compare the categorical data while regression analysis was used to evaluate association of genotypes with PCOS as well as its related phenotypes. RESULTS The frequencies of CC and CG + GG genotypes of Pro12Ala (χ² = 15.3, p < 0.0001) and CC and CT + TT genotypes of His447His (χ² = 12.7, p = 0.0004) polymorphisms were significantly different between PCOS and controls. Logistic regression analysis revealed a significant association of PCOS with Pro12Ala but not the His447His polymorphism. Carriers of variant genotypes at both PPARγ loci showed significantly reduced 2 h glucose levels while carriers of variant His447His genotype showed lower fasting insulin and HOMA-IR levels in PCOS women. CONCLUSIONS Pro12Ala polymorphism of PPARγ showed significant association with decreased PCOS susceptibility. Both polymorphisms influenced insulin related traits (2 h glucose, fasting insulin and HOMA-IR) and improved glucose metabolism in these women. This is the first report to establish that variations in PPARγ gene influence the insulin resistance pathophysiology in Indian women with PCOS.
Collapse
Affiliation(s)
- Nuzhat Shaikh
- Department of Molecular Endocrinology, National Institute for Research in Reproductive Health, J. M. Street, Parel Mumbai 400012, India.
| | | | | | | | | |
Collapse
|
12
|
Zhang H, Bi Y, Hu C, Lu W, Zhu D. Association between the Pro12Ala polymorphism of PPAR-γ gene and the polycystic ovary syndrome: A meta-analysis of case–control studies. Gene 2012; 503:12-7. [DOI: 10.1016/j.gene.2012.04.083] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 03/13/2012] [Accepted: 04/27/2012] [Indexed: 11/26/2022]
|
13
|
Dasgupta S, Sirisha P, Neelaveni K, Anuradha K, Sudhakar G, Reddy BM. Polymorphisms in the IRS‐1 and PPAR-γ genes and their association with polycystic ovary syndrome among South Indian women. Gene 2012; 503:140-6. [DOI: 10.1016/j.gene.2012.04.060] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 02/23/2012] [Accepted: 04/18/2012] [Indexed: 10/28/2022]
|
14
|
Tang ST, Wang CJ, Tang HQ, Peng WJ, Wang YM, Zhang Q. Association of Pro12Ala polymorphism in peroxisome proliferator-activated receptor gamma with polycystic ovary syndrome: a meta-analysis. Mol Biol Rep 2012; 39:9649-60. [DOI: 10.1007/s11033-012-1830-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2012] [Accepted: 06/10/2012] [Indexed: 10/28/2022]
|
15
|
He J, Wang L, Liu J, Liu F, Li X. A meta-analysis on the association between PPAR-γ Pro12Ala polymorphism and polycystic ovary syndrome. J Assist Reprod Genet 2012; 29:669-77. [PMID: 22527903 DOI: 10.1007/s10815-012-9772-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2012] [Accepted: 04/09/2012] [Indexed: 10/28/2022] Open
Abstract
PURPOSE To investigate the influence of the peroxisome proliferator activated receptor gamma (PPAR-γ) Pro12Ala polymorphism on the susceptibility of polycystic ovary syndrome (PCOS) and body mass index (BMI), fast insulin levels, homeostasis model assessment of insulin resistance (HOMA-IR) in PCOS patients. METHODS PubMed, EMBASE, MEDLINE and CENTRAL databases were searched to identify eligible studies. We then conducted a meta-analysis to examine the association between Pro12Ala polymorphism and PCOS. RESULTS Seventeen eligible studies, including 2,149 patients and 2,124 controls were enrolled in this meta-analysis. Pro12Ala polymorphism was significantly associated with the susceptibility of PCOS (odds ratio [OR] 0.74, 95 % confidence interval [CI] [0.61, 0.90] for allele; OR 0.70, 95 % CI [0.57, 0.86] for genotype). In the European subgroup of PCOS, the X/Ala genotype was associated with lower BMI (mean difference [MD] -1.08, 95 % CI [-2.08, -0.09]) and fast insulin levels (MD -19.82, 95 % CI [-34.07, -5.58]). However, this polymorphism did not display an impact on HOMA-IR in PCOS patients. CONCLUSIONS Ala variant would decrease the risk of PCOS and result in lower BMI and fast insulin levels in a European population, but had no impact on HOMA-IR in PCOS patients. Further studies are required to elucidate these associations more clear.
Collapse
Affiliation(s)
- Junli He
- Department of Urology, Children's Hospital of Chongqing Medical University, 136 Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | | | | | | | | |
Collapse
|
16
|
Unluturk U, Harmanci A, Kocaefe C, Yildiz BO. The Genetic Basis of the Polycystic Ovary Syndrome: A Literature Review Including Discussion of PPAR-gamma. PPAR Res 2011; 2007:49109. [PMID: 17389770 PMCID: PMC1820621 DOI: 10.1155/2007/49109] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2006] [Revised: 11/24/2006] [Accepted: 12/03/2006] [Indexed: 02/06/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) is the most common endocrine disorder of the women of reproductive age. Familial clustering of PCOS has been consistently reported suggesting that genetic factors play a role in the development of the syndrome although PCOS cases do not exhibit a clear pattern of Mendelian inheritance. It is now well established that PCOS represents a complex trait similar to type-2 diabetes and obesity, and that both inherited and environmental factors contribute to the PCOS pathogenesis. A large number of functional candidate genes have been tested for association or linkage with PCOS phenotypes with more negative than positive findings. Lack of universally accepted diagnostic criteria, difficulties in the assignment of male phenotype, obscurity in the mode of inheritance, and particularly small sample size of the study populations appear to be major limitations for the genetic studies of PCOS. In the near future, utilizing the genome-wide scan approach and the HapMap project will provide a stronger potential for the genetic analysis of the syndrome.
Collapse
Affiliation(s)
- Ugur Unluturk
- Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Hacettepe, 06100 Ankara, Turkey
| | - Ayla Harmanci
- Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Hacettepe, 06100 Ankara, Turkey
- Endocrinology and Metabolism Unit, Faculty of Medicine, Hacettepe University, Hacettepe, 06100 Ankara, Turkey
| | - Cetin Kocaefe
- Department of Medical Biology, Faculty of Medicine, Hacettepe University, Hacettepe, 06100 Ankara, Turkey
| | - Bulent O. Yildiz
- Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Hacettepe, 06100 Ankara, Turkey
- Endocrinology and Metabolism Unit, Faculty of Medicine, Hacettepe University, Hacettepe, 06100 Ankara, Turkey
- *Bulent O. Yildiz:
| |
Collapse
|
17
|
Christopoulos P, Mastorakos G, Gazouli M, Deligeoroglou E, Katsikis I, Diamanti-Kandarakis E, Panidis D, Creatsas G. Peroxisome proliferator-activated receptor-γ and -δ polymorphisms in women with polycystic ovary syndrome. Ann N Y Acad Sci 2010; 1205:185-91. [DOI: 10.1111/j.1749-6632.2010.05647.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
18
|
San-Millán JL, Escobar-Morreale HF. The role of genetic variation in peroxisome proliferator-activated receptors in the polycystic ovary syndrome (PCOS): an original case-control study followed by systematic review and meta-analysis of existing evidence. Clin Endocrinol (Oxf) 2010; 72:383-92. [PMID: 19681917 DOI: 10.1111/j.1365-2265.2009.03679.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To study the association of polymorphisms in the genes encoding peroxisome proliferator-activated receptors (PPARs) with the polycystic ovary syndrome (PCOS). DESIGN Case-control study and meta-analysis of published evidence. PATIENTS One hundred and sixty-one polycystic ovary syndrome patients and 113 non-hyperandrogenic women. MEASUREMENTS Genotyping for PPAR-gamma coactivator-1 gene (PPARGC1A) Gly482Ser, PPAR-alpha Leu162Val, PPAR-delta rs2267668A/G, PPAR-delta-87T/C, PPAR-gamma2 Pro12Ala and PPAR-gamma2 -681C/G variants and systematic review of the literature using the Entrez-PubMed search engine, followed by meta-analysis whenever possible. RESULTS Polycystic ovary syndrome patients carried the Gly482Ser variant in PPARGC1A more frequently than controls (72%vs. 58%, chi(2 )=( )5.54 P = 0.019), whereas carriers of the PPAR-alpha Leu162Val, PPAR-delta rs2267668A/G, PPAR-delta-87T/C, PPAR-gamma2 Pro12Ala and PPAR-gamma2 -681C/G variants were distributed similarly among both groups. The interaction between the PPARGC1A Gly482Ser and PPAR-delta-87T/C variants was also associated with PCOS (OR = 1.24, 95% CI 1.05-1.50, P = 0.008). The systematic review identified 31 studies addressing associations between PPARs variants and PCOS; meta-analysis was possible for nine studies focusing on the PPAR-gamma2 Pro12Ala variant. Although the individual studies did not reveal any statistically significant association, meta-analysis uncovered that carrying the PPAR-gamma2 Pro12Ala variant was associated with a reduced probability of having PCOS (OR = 0.77, 95% CI 0.61-0.96, P = 0.025), and that this association may be mediated by an effect on insulin sensitivity. CONCLUSIONS Common polymorphisms in the PPARGC1A, PPAR-delta and PPAR-gamma2 loci are associated with PCOS.
Collapse
Affiliation(s)
- José L San-Millán
- Department of Molecular Genetics, Hospital Universitario Ramon y Cajal & Universidad de Alcala, Madrid, Spain
| | | |
Collapse
|
19
|
Xita N, Lazaros L, Georgiou I, Tsatsoulis A. The Pro12Ala polymorphism of the PPAR-gamma gene is not associated with the polycystic ovary syndrome. Hormones (Athens) 2009; 8:267-72. [PMID: 20045799 DOI: 10.1007/bf03401274] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Insulin resistance is a key factor in the pathogenesis of polycystic ovary syndrome (PCOS). Peroxisome proliferator-activated- receptor-gamma (PPAR-gamma) has been implicated in insulin resistance and adiposity. The aim of the study was to investigate the possible involvement of the Pro12Ala polymorphism of the PPAR-gamma gene in the pathogenesis of PCOS. DESIGN We studied 180 women with PCOS and 140 healthy controls. Body mass index (BMI) was recorded. Blood samples were drawn after overnight fasting and serum glucose, insulin, lipid and hormonal profiles were determined. The fasting glucose/insulin ratio and HOMA index were calculated. Moreover, 100 women with PCOS underwent a 75g oral glucose tolerance test and the area under the curve for insulin and glucose was estimated. DNA was extracted from peripheral blood leucocytes and the Pro12Ala polymorphism was genotyped. RESULTS The PPAR-gamma genotypes were found to be in the Hardy-Weinberg equilibrium in both study groups. No difference was found in the distribution of the Pro12Ala polymorphism between PCOS and controls. Insulin resistance indices and lipid and hormonal profile were not different among the various genotypes of the Pro12Ala polymorphism. CONCLUSIONS The Pro12Ala polymorphism of the PPAR-gamma gene is not involved in the pathogenesis or the phenotypic expression of PCOS.
Collapse
Affiliation(s)
- Nectaria Xita
- Department of Endocrinology, University of Ioannina, Ioannina, Greece
| | | | | | | |
Collapse
|
20
|
Gu BH, Baek KH. Pro12Ala and His447His polymorphisms of PPAR-gamma are associated with polycystic ovary syndrome. Reprod Biomed Online 2009; 18:644-50. [PMID: 19549442 DOI: 10.1016/s1472-6483(10)60008-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Polycystic ovary syndrome (PCOS) is a common endocrine disorder that affects 4-12% of women of reproductive age, and is specified when two of the three following criteria are present: hyperandrogenism, oligomenorrhoea and polycystic ovary morphology by ultrasonography. PCOS is characterized by infertility, obesity and hyperinsulinaemia. However, the aetiology of PCOS has not yet been fully identified due to complex metabolic mechanisms. Many researchers have demonstrated that polymorphisms of putative genes related to symptoms are associated with PCOS. In the reproductive system, energy metabolism and hormonal regulation are important to differentiate granulosa cells in the ovary. Peroxisome proliferator-activated receptor gamma (PPAR-gamma) is a transcription factor, and is known to be associated with insulin sensitivity. Furthermore, it is highly expressed in granulosa cells. It was recently reported that various polymorphisms of PPAR-gamma are associated with PCOS in different ethnic backgrounds. This study has shown that both Pro12Ala and His447His polymorphisms of PPAR-gamma are associated with PCOS in a Korean population.
Collapse
Affiliation(s)
- Bon-Hee Gu
- Cell and Gene Therapy Research, Institute, Fertility Medical Centre, CHA University, CHA General Hospital, Seoul, Korea.
| | | |
Collapse
|
21
|
Simoni M, Tempfer CB, Destenaves B, Fauser BCJM. Functional genetic polymorphisms and female reproductive disorders: Part I: Polycystic ovary syndrome and ovarian response. Hum Reprod Update 2008; 14:459-84. [PMID: 18603647 PMCID: PMC2515090 DOI: 10.1093/humupd/dmn024] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND The identification of polymorphisms associated with a disease can help to elucidate its pathogenesis, and this knowledge can be used to improve prognosis for women with a particular disorder, such as polycystic ovary syndrome (PCOS). Since an altered response to ovarian stimulation is also a characteristic of the disease, further knowledge about its aetiology could help in defining the parameters that determine the response of an individual to ovarian stimulation. METHODS PubMed and EMBASE databases were systematically searched for gene association studies published until the end of August 2007, using search criteria relevant to PCOS and ovarian response to stimulation. Data from additional papers identified through hand searches were also included; 139 publications were reviewed. RESULTS Several genes involved in ovarian function and metabolism are associated with increased susceptibility to PCOS, but none is strong enough to correlate alone with susceptibility to the disease, or response to therapy. A single-nucleotide polymorphism in exon 10 of the FSH receptor (FSHR) gene, FSHR p.N680S, was consistently identified as having a significant association with ovarian response to FSH. CONCLUSIONS No consistent association between gene polymorphism and PCOS could be identified. The FSHR gene may play a significant role in the success of ovarian stimulation, and can be used as a marker to predict differences in FSHR function and ovarian response to FSH. Genotyping the FSHR p.N680S polymorphism may provide a means of identifying a population of poor responders before in vitro fertilization procedures are initiated.
Collapse
Affiliation(s)
- M Simoni
- Department of Medicine, Endocrinology, Metabolism and Geriatrics, University of Modena and Reggio Emilia, I-41100 Modena, Italy.
| | | | | | | |
Collapse
|
22
|
Yong EL, Li J, Liu MH. Single gene contributions: genetic variants of peroxisome proliferator-activated receptor (isoforms alpha, beta/delta and gamma) and mechanisms of dyslipidemias. Curr Opin Lipidol 2008; 19:106-12. [PMID: 18388689 DOI: 10.1097/mol.0b013e3282f64542] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
PURPOSE OF REVIEW Polymorphisms in peroxisome proliferator-activated receptor isoforms may be among the most important single-gene contributors to dyslipidemias, insulin resistance, and maturity-onset diabetes. RECENT FINDINGS Familial partial lipodystrophy is a rare but characteristic phenotype associated with carriers of peroxisome proliferator-activated receptor-gamma missense mutations. Mutant receptors are transcriptionally defective, exhibit aberrant affinity for co-regulator molecules, and can exert dominant-negative or haplo-insufficiency effects on normal peroxisome proliferator-activated receptor-gamma function. The P12A variant of isoform gamma is estimated to reduce diabetes risk by 19% in many populations, and has a large attributable risk because of high prevalence of the normal allele. Variants L162V and V227A of isoform alpha (common in white and Oriental populations, respectively) are associated with sexually dimorphic perturbations of lipid metabolism and cardiovascular risk. Polymorphisms in isoforms alpha and beta/delta are reported to influence lipid and glucose utilization. Apart from lipodystrophic syndromes, metabolic and cardiovascular risk in peroxisome proliferator-activated receptor variants is apparently modulated by dietary and exercise interventions, and interactions with polymorphisms in other genetic loci. SUMMARY Polymorphisms in peroxisome proliferator-activated receptors are critical susceptibility risk factors for dyslipidemias and diabetes. They provide attractive targets for gene-environment interventions to reduce the burden of metabolic disease.
Collapse
Affiliation(s)
- Eu Leong Yong
- Department of Obstetrics & Gynecology, National University Hospital, Yong Loo Lin School of Medicine, National University of Singapore.
| | | | | |
Collapse
|
23
|
Bibliography. Current world literature. Diabetes and the endocrine pancreas II. Curr Opin Endocrinol Diabetes Obes 2007; 14:329-57. [PMID: 17940461 DOI: 10.1097/med.0b013e3282c3a898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
24
|
Bibliography. Current world literature. Minimally invasive gynecologic procedures. Curr Opin Obstet Gynecol 2007; 19:402-5. [PMID: 17625426 DOI: 10.1097/gco.0b013e3282ca75fc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
25
|
Antoine HJ, Pall M, Trader BC, Chen YDI, Azziz R, Goodarzi MO. Genetic variants in peroxisome proliferator-activated receptor gamma influence insulin resistance and testosterone levels in normal women, but not those with polycystic ovary syndrome. Fertil Steril 2006; 87:862-9. [PMID: 17141766 PMCID: PMC1925257 DOI: 10.1016/j.fertnstert.2006.10.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2006] [Revised: 10/06/2006] [Accepted: 10/06/2006] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To investigate the relationship of the peroxisome proliferator-activated receptor gamma (PPARG) Pro12Ala and silent exon 6 (His447His) polymorphisms with the clinical features of polycystic ovary syndrome (PCOS). DESIGN Patients with PCOS and control subjects were genotyped for Pro12Ala and His447His. Associations between genotype, diagnosis, and hormonal/metabolic parameters were assessed. SETTING Subjects were recruited from the reproductive endocrinology clinic at the University of Alabama at Birmingham, Birmingham, Alabama. Control subjects were recruited from the surrounding community. Genotyping was performed at the Cedars-Sinai Medical Center in Los Angeles, California. PATIENT(S) Participants included 285 white women with PCOS and 187 controls. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) The Pro12Ala and His447His genotypes, and hormonal and metabolic phenotypes. RESULT(S) The Pro12Ala and His447His genotypes did not influence risk of PCOS or its component phenotypes in patients with PCOS. In controls, Pro12Ala did not influence measures of insulin resistance or androgen production. However, carriers of the His447His T-allele had significantly decreased free and total T levels, and a significantly decreased homeostasis model assessment index of insulin resistance. Furthermore, haplotypes in controls bearing the His447His T-allele were also associated with decreased T. CONCLUSION(S) Peroxisome proliferator-activated receptor gamma does not appear to be an important modifier gene in PCOS. In controls, however, the His447His T-allele may be in linkage disequilibrium with a functional variant that influences insulin resistance and T production.
Collapse
Affiliation(s)
- Heath J. Antoine
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, the David Geffen School of Medicine at UCLA, Los Angeles, California 90095
| | - Marita Pall
- Department of Obstetrics and Gynecology, the David Geffen School of Medicine at UCLA, Los Angeles, California 90095
| | - Belynda C. Trader
- Department of Obstetrics and Gynecology, the David Geffen School of Medicine at UCLA, Los Angeles, California 90095
| | - Yii-Der I. Chen
- Department of Obstetrics and Gynecology, the David Geffen School of Medicine at UCLA, Los Angeles, California 90095
- Medical Genetics Institute, Cedars-Sinai Medical Center 90048, the David Geffen School of Medicine at UCLA, Los Angeles, California 90095
- Department of Medicine, the David Geffen School of Medicine at UCLA, Los Angeles, California 90095
| | - Ricardo Azziz
- Department of Obstetrics and Gynecology, the David Geffen School of Medicine at UCLA, Los Angeles, California 90095
- Department of Medicine, the David Geffen School of Medicine at UCLA, Los Angeles, California 90095
- Departments of Obstetrics and Gynecology, the David Geffen School of Medicine at UCLA, Los Angeles, California 90095
| | - Mark O. Goodarzi
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, the David Geffen School of Medicine at UCLA, Los Angeles, California 90095
- Department of Obstetrics and Gynecology, the David Geffen School of Medicine at UCLA, Los Angeles, California 90095
- Medical Genetics Institute, Cedars-Sinai Medical Center 90048, the David Geffen School of Medicine at UCLA, Los Angeles, California 90095
- Department of Medicine, the David Geffen School of Medicine at UCLA, Los Angeles, California 90095
| |
Collapse
|