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Bonnefont-Rousselot D. [Lipoprotein-associated phospholipase A 2 (Lp-PLA 2): Relevant biomarker and therapeutic target?]. ANNALES PHARMACEUTIQUES FRANÇAISES 2024:S0003-4509(24)00133-0. [PMID: 39241907 DOI: 10.1016/j.pharma.2024.08.011] [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: 08/14/2024] [Revised: 08/23/2024] [Accepted: 08/29/2024] [Indexed: 09/09/2024]
Abstract
Over the last fifteen years, numerous studies have sought to decipher the role of lipoprotein-associated phospholipase A2 (Lp-PLA2) in vascular inflammation-related diseases, notably atherosclerosis. Despite the disappointing results of clinical trials using the Lp-PLA2 inhibitor darapladib, new pathophysiological, epidemiological and genetic data have enabled the development of new inhibitors. Recent studies also show that Lp-PLA2 is involved in vascular inflammation-related diseases other than atherosclerosis (ischemic stroke, Alzheimer's disease and vascular dementia, diabetes, cancers…), and inhibition of Lp-PLA2 could have beneficial therapeutic in these diseases. This review aims to present new data on Lp-PLA2 and to evaluate its current interest as a biomarker but also as a therapeutic target.
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Affiliation(s)
- Dominique Bonnefont-Rousselot
- Service de biochimie métabolique, hôpitaux universitaires Pitié-Salpêtrière-Charles-Foix, AP-HP, 47-83, boulevard de l'Hôpital, 75651 Paris, France; Inserm, CNRS, UFR de pharmacie, UTCBS, université Paris Cité, Paris, France.
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Neri C, Ciliberti A, Dessì DA, Airoldi C, Basello K, Costanzi A, Familiari A, Tersigni C, Cappelletti M, Speciani AF, Lanzone A. B-cell-activating factor (BAFF) and platelet-activating factor (PAF) in pregnancies complicated by maternal obesity and diabetes: a preliminary study. J Matern Fetal Neonatal Med 2023; 36:2272010. [PMID: 37872771 DOI: 10.1080/14767058.2023.2272010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 10/12/2023] [Indexed: 10/25/2023]
Abstract
OBJECTIVE In pregnancies complicated by maternal obesity and diabetes, a disruption in inflammatory mediators occurs, resulting in endothelial microvascular dysfunction, oxidative stress, tissue damage, and maternal and feto-neonatal complications. To outline this proinflammatory status, an innovative approach is represented by the measurement of proinflammatory cytokines. Among these biomarkers, B-cell-activating factor (BAFF) and platelet-activating factor (PAF) play a key role in metabolic regulation, immune response to infections, tissue homeostasis, and "food-related inflammation." The aim of the present study is to investigate the blood expression of BAFF and PAF in a cohort of pregnant women affected by obesity and diabetes compared with a control group of healthy pregnant women. METHODS A prospective longitudinal cohort study has been conducted on pregnant women referred to Fondazione Policlinico Universitario Gemelli IRCCS in Rome. For each pregnant woman, a capillary sample was collected with a swab in three different consecutive evaluations carried out in the three trimesters of pregnancy. RESULTS A total of 77 pregnant women have been enrolled. No significant differences in BAFF and PAF levels were longitudinally observed between groups. Focusing on the exposed group, in the third trimester of pregnancy, both PAF and BAFF levels were lower than the basal time. Among the selected group of patients who developed Gestational Diabetes, only PAF values were longitudinally lower when compared to other groups. The multivariate analysis showed that BAFF levels were positively correlated with thyroid-stimulating hormone levels. No macrosomia, no shoulder dystocia, no major perineal lacerations at birth, and no intrauterine growth restriction were observed in the whole population. CONCLUSIONS This study supports the involvement of metabolic and proinflammatory biomarkers in the mechanisms related to pregnancy complications. Improving a good metabolic environment for obese and diabetic pregnant women could break the vicious cycle connecting inflammation, oxidative stress, and metabolic disorders.
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Affiliation(s)
- Caterina Neri
- Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Alessandra Ciliberti
- Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Davide Archelao Dessì
- Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Chiara Airoldi
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
| | | | | | - Alessandra Familiari
- Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Chiara Tersigni
- Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | | | | | - Antonio Lanzone
- Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
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Valero P, Cornejo M, Fuentes G, Wehinger S, Toledo F, van der Beek EM, Sobrevia L, Moore-Carrasco R. Platelets and endothelial dysfunction in gestational diabetes mellitus. Acta Physiol (Oxf) 2023; 237:e13940. [PMID: 36700365 DOI: 10.1111/apha.13940] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 01/06/2023] [Accepted: 01/24/2023] [Indexed: 01/27/2023]
Abstract
The prevalence of gestational diabetes mellitus (GDM) has increased in recent years, along with the higher prevalence of obesity in women of reproductive age. GDM is a pathology associated with vascular dysfunction in the fetoplacental unit. GDM-associated endothelial dysfunction alters the transfer of nutrients to the foetus affecting newborns and pregnant women. Various mechanisms for this vascular dysfunction have been proposed, of which the most studied are metabolic alterations of the vascular endothelium. However, different cell types are involved in GDM-associated endothelial dysfunction, including platelets. Platelets are small, enucleated cell fragments that actively take part in blood haemostasis and thrombus formation. Thus, they play crucial roles in pathologies coursing with endothelial dysfunction, such as atherosclerosis, cardiovascular diseases, and diabetes mellitus. Nevertheless, platelet function in GDM is understudied. Several reports show a potential relationship between platelet volume and mass with GDM; however, platelet roles and signaling mechanisms in GDM-associated endothelial dysfunction are unclear. This review summarizes the reported findings and proposes a link among altered amount, volume, mass, reactivity, and function of platelets and placenta development, resulting in fetoplacental vascular dysfunction in GDM.
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Affiliation(s)
- Paola Valero
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, Department of Obstetrics, Faculty of Medicine, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
- Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Marcelo Cornejo
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, Department of Obstetrics, Faculty of Medicine, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
- Faculty of Health Sciences, Universidad de Talca, Talca, Chile
- Department of Pathology and Medical Biology, Division of Pathology, University of Groningen, University Medical Centre Groningen (UMCG), Groningen, The Netherlands
- Biomedical Department, Faculty of Health Sciences, Universidad de Antofagasta, Antofagasta, Chile
| | - Gonzalo Fuentes
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, Department of Obstetrics, Faculty of Medicine, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
- Faculty of Health Sciences, Universidad de Talca, Talca, Chile
- Department of Pathology and Medical Biology, Division of Pathology, University of Groningen, University Medical Centre Groningen (UMCG), Groningen, The Netherlands
| | - Sergio Wehinger
- Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| | - Fernando Toledo
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, Department of Obstetrics, Faculty of Medicine, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
- Department of Basic Sciences, Faculty of Sciences, Universidad del Bío-Bío, Chillán, Chile
| | - Eline M van der Beek
- Department of Pediatrics, University of Groningen, University Medical Center Groningen (UMCG), Groningen, The Netherlands
- Nestlé Institute for Health Sciences, Nestlé Research, Societé des Produits de Nestlé, Lausanne, Switzerland
| | - Luis Sobrevia
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, Department of Obstetrics, Faculty of Medicine, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
- Department of Physiology, Faculty of Pharmacy, Universidad de Sevilla, Seville, Spain
- Medical School (Faculty of Medicine), Sao Paulo State University (UNESP), São Paulo, Brazil
- University of Queensland Centre for Clinical Research (UQCCR), Faculty of Medicine and Biomedical Sciences, University of Queensland, Herston, Queensland, Australia
- Tecnologico de Monterrey, Eutra, The Institute for Obesity Research (IOR), School of Medicine and Health Sciences, Monterrey, Mexico
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Wang GH, Jin J, Liu YQ, Yang FY, Shi D, Zhang Y, Zhao YM, Wang Y. The changes of Lp-PLA2 in patients with gestational diabetes and its clinical significance. Medicine (Baltimore) 2021; 100:e26786. [PMID: 34397729 PMCID: PMC8322476 DOI: 10.1097/md.0000000000026786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 06/18/2021] [Indexed: 01/04/2023] Open
Abstract
Gestational diabetes mellitus (GDM) is one of the most common complications of pregnancy and associated with adverse pregnancy outcomes. The aim of this study was to investigate the changes of lipoprotein-associated phospholipaseA2 (Lp-PLA2) level and its correlation with biochemical indexes in patients with GDM.This observational cross-sectional study was performed among 52 GDM and 48 healthy pregnant women. Automatic biochemical analyzer was employed to test the biochemical indexes, including fasting plasma glucose (FPG), Hemoglobin A1c (HbA1c), total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C). The lipoprotein-associated phospholipaseA2 (Lp-PLA2) level was evaluated by enzyme-linked immunosorbent assay, and homeostatic model assessment for insulin resistance (HOMA-IR) was calculated.The levels of FPG, HbA1c, HOMA-IR, TG, TC and LDL-C were significantly increased while high-density lipoprotein cholesterol (HDL-C) level was significantly decreased in the GDM group when compared with those in the control group. Lp-PLA2 level in maternal blood in the GDM group was significantly higher than that in the control group (199.125 ± 23.494 vs165.825 ± 15.576 ng/mL, P < .05) and logistic regression analysis further confirmed the association of Lp-PLA2 levels with GDM. Furthermore, Lp-PLA2 positively correlated with HOMA-IR, TC, and LDL-C.Our results confirmed the association of Lp-PLA2 with GDM. This broadens our knowledge on the pathophysiology of GDM and provides insights into the development of new targets for the prevention and treatment of GDM.
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Affiliation(s)
- Guo-Hua Wang
- Department of Obstetrics, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Jun Jin
- Department of Clinical Laboratory, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Ya-Qiong Liu
- Department of Obstetrics, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Fu-Yan Yang
- Department of Obstetrics, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Dan Shi
- Department of Obstetrics, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Yi Zhang
- Department of Obstetrics, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Yi-Mei Zhao
- Department of Obstetrics, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Yang Wang
- Department of Physical Examination Center, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
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Lactonase activity and status of paraoxonase 1 and oxidative stress in neonates of women with gestational diabetes mellitus. Pediatr Res 2021; 89:1192-1199. [PMID: 32570269 DOI: 10.1038/s41390-020-1023-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 05/23/2020] [Accepted: 06/05/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND The level and lactonase activity of paraoxonase 1 (PON1) and their association with PON1 genetic variants and oxidative stress are unclear in neonates of women with gestational diabetes mellitus (GDM). METHODS This study included 362 neonates of women with GDM and 302 control neonates. The level, lactonase activity, normalized lactonase activity (NLA), and genetic polymorphisms of PON1, serum total oxidant status (TOS), total antioxidant capacity (TAC), and malondialdehyde (MDA) were analyzed. RESULTS The neonates of the women with GDM had significantly higher levels, lactonase activity, and NLA of PON1, higher TOS, TAC, and MDA concentrations, and relatively higher oxidative stress index than those of the control neonates. The PON1 -108C → T variation decreased the lactonase activity, level, and NLA of PON1, while the PON1 192Q → R variation decreased the PON1 NLA in a genotype-dependent manner in the two groups. Multivariable regression analysis revealed the PON1 -108C/T or 192Q/R variation, apolipoprotein (apo)A1, or apoB as significant predictors of the level, lactonase activity, and NLA of PON1. CONCLUSIONS The lactonase activity, level, and NLA of PON1 were increased in the neonates of women with GDM. The PON1 genetic variants, abnormalities in lipoproteins, and increased oxidative stress may be associated with these changes. IMPACT This is the first study to report the elevated level, lactonase activity, and NLA of PON1 in the neonates of women with GDM. These neonates also exhibited increased oxidative stress and an adverse glycolipid metabolic profile. We further established that the -108C/T and/or 192Q/R genetic variants of the PON1 gene, abnormalities in lipoprotein metabolism, and/or increased oxidative stress had noticeable influences on the level and activities of PON1. Whether these changes potentially cause metabolic disorders later in life remains to be determined. Therefore, the neonates born to women with GDM require further clinical follow-ups.
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Liu X, Sun J, Wen X, Duan J, Xue D, Pan Y, Sun J, Zhang W, Cheng X, Wang C. Proteome profiling of gestational diabetes mellitus at 16-18 weeks revealed by LC-MS/MS. J Clin Lab Anal 2020; 34:e23424. [PMID: 32537767 PMCID: PMC7521232 DOI: 10.1002/jcla.23424] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 05/14/2020] [Accepted: 05/19/2020] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND The practices used to diagnose gestational diabetes mellitus (GDM) could only be carried out around the time of detectable symptoms, and predictive capacity is little. METHODS LC-MS/MS was conducted to explore overview proteomics for GDM complicated pregnant woman at 16-18 gestation weeks, while normal pregnant for control. Enzyme-linked immunosorbent assay was further applied in an independent cohort of 15 GDM cases and 15 controls for verification. RESULTS The results indicated that 24 protein expression levels were significantly changed in GDM group samples, and inflammation, oxidative stress, insulin resistance, blood coagulation, and lipid homeostasis were associated with GDM. The abnormal expression of CRP and IGFBP2 was verified in the first-trimester maternal plasma in women who subsequently developed GDM. CONCLUSIONS This study not only identified 24 potential predictive biomarkers for GDM also provided a global overview of protein rearrangements induced by GDM.
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Affiliation(s)
- Xiaoting Liu
- Medical School of Chinese PLA & Medical Laboratory CenterFirst Medical Center of Chinese PLA General HospitalBeijingChina
| | | | - Xinyu Wen
- Medical School of Chinese PLA & Medical Laboratory CenterFirst Medical Center of Chinese PLA General HospitalBeijingChina
| | - Jinyan Duan
- Medical School of Chinese PLA & Medical Laboratory CenterFirst Medical Center of Chinese PLA General HospitalBeijingChina
| | - Dandan Xue
- Medical School of Chinese PLA & Medical Laboratory CenterFirst Medical Center of Chinese PLA General HospitalBeijingChina
| | - Yuling Pan
- Medical School of Chinese PLA & Medical Laboratory CenterFirst Medical Center of Chinese PLA General HospitalBeijingChina
| | - Jinghua Sun
- Medical School of Chinese PLA & Medical Laboratory CenterFirst Medical Center of Chinese PLA General HospitalBeijingChina
| | | | | | - Chengbin Wang
- Medical School of Chinese PLA & Medical Laboratory CenterFirst Medical Center of Chinese PLA General HospitalBeijingChina
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Zhou M, Chen M, Bai H, He GL, Liu QQ, Guan LB, Liu XH, Fan P. Association of the G994T and R92H genotypes of platelet-activating factor acetylhydrolase with risk of preeclampsia in Chinese women. Pregnancy Hypertens 2020; 20:19-26. [DOI: 10.1016/j.preghy.2020.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 09/02/2019] [Accepted: 02/23/2020] [Indexed: 10/24/2022]
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Huang F, Wang K, Shen J. Lipoprotein-associated phospholipase A2: The story continues. Med Res Rev 2019; 40:79-134. [PMID: 31140638 PMCID: PMC6973114 DOI: 10.1002/med.21597] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 04/20/2019] [Accepted: 04/30/2019] [Indexed: 12/15/2022]
Abstract
Inflammation is thought to play an important role in the pathogenesis of vascular diseases. Lipoprotein-associated phospholipase A2 (Lp-PLA2) mediates vascular inflammation through the regulation of lipid metabolism in blood, thus, it has been extensively investigated to identify its role in vascular inflammation-related diseases, mainly atherosclerosis. Although darapladib, the most advanced Lp-PLA2 inhibitor, failed to meet the primary endpoints of two large phase III trials in atherosclerosis patients cotreated with standard medical care, the research on Lp-PLA2 has not been terminated. Novel pathogenic, epidemiologic, genetic, and crystallographic studies regarding Lp-PLA2 have been reported recently, while novel inhibitors were identified through a fragment-based lead discovery strategy. More strikingly, recent clinical and preclinical studies revealed that Lp-PLA2 inhibition showed promising therapeutic effects in diabetic macular edema and Alzheimer's disease. In this review, we not only summarized the knowledge of Lp-PLA2 established in the past decades but also emphasized new findings in recent years. We hope this review could be valuable for helping researchers acquire a much deeper insight into the nature of Lp-PLA2, identify more potent and selective Lp-PLA2 inhibitors, and discover the potential indications of Lp-PLA2 inhibitors.
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Affiliation(s)
- Fubao Huang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai, China.,School of Pharmacy, University of Chinese Academy of Sciences, Beijing, China
| | - Kai Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai, China
| | - Jianhua Shen
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai, China
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Zhang R, Liu Q, Liu H, Bai H, Zhang Y, Guan L, Fan P. Effects of apoC1 genotypes on the hormonal levels, metabolic profile and PAF-AH activity in Chinese women with polycystic ovary syndrome. Lipids Health Dis 2018; 17:77. [PMID: 29636060 PMCID: PMC5894162 DOI: 10.1186/s12944-018-0725-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 03/28/2018] [Indexed: 02/03/2023] Open
Abstract
Background Elevated serum levels of apolipoprotein (apo) C1 may be an early protein marker of metabolic abnormality in women with polycystic ovary syndrome (PCOS). It is not clear, however, whether there are any relationships between the apoC1 rs4420638A/G and -317deletion (H1)/insertion (H2) polymorphisms and PCOS. We investigated the relationship between these two variants and the risk of PCOS, evaluated the genotypic effects on clinical, hormonal and metabolic indexes and plasma platelet-activating factor acetylhydrolase (PAF-AH) activity, and defined the association of apoC1 gene variants with apoE ε2/ε3/ε4 polymorphisms. Methods This is a cross-sectional study of 877 women with PCOS and 761 controls. The apoC1 rs4420638A/G genotype was determined by a Taqman real-time PCR allelic discrimination assay. The apoC1–317H1/H2 and apoE ε2/ε3/ε4 genotypes were measured using PCR and restriction fragment length polymorphism analysis. The clinical, hormonal and metabolic parameters and PAF-AH activity were measured. Results The frequencies of apoC1 rs4420638A/G and -317H1/H2 genotypes and alleles were similar between PCOS and control groups (P > 0.05). However, the rs4420638 G allele was related to increased serum luteinizing hormone, cholesterol and apoB levels, and the ratio of apoB to apoA1 (P < 0.05), and the -317H1H1 genotype was associated with a higher acne grade score and a higher ratio of apoB-PAF-AH to H-PAF-AH activity (P < 0.05) in patients with PCOS. We also demonstrated that the apoC1 rs4420638A/G and -317H1/H2 gene variants existed in moderate to reasonably high linkage disequilibrium with apoE ε2/ε3/ε4 polymorphisms in Chinese women. Conclusion The apoC1 rs4420638A/G and -317H1/H2 gene variants might be involved in endocrine abnormalities of reproductive axis, metabolic abnormalities and chronic inflammation in PCOS, although no association was observed between the apoC1 genetic variants and the risk of PCOS in Chinese women.
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Affiliation(s)
- Renjiao Zhang
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Qingqing Liu
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Hongwei Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Huai Bai
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Yujin Zhang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Linbo Guan
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Ping Fan
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China.
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Schliefsteiner C, Hirschmugl B, Kopp S, Curcic S, Bernhart EM, Marsche G, Lang U, Desoye G, Wadsack C. Maternal Gestational Diabetes Mellitus increases placental and foetal lipoprotein-associated Phospholipase A2 which might exert protective functions against oxidative stress. Sci Rep 2017; 7:12628. [PMID: 28974763 PMCID: PMC5626711 DOI: 10.1038/s41598-017-13051-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 09/18/2017] [Indexed: 12/13/2022] Open
Abstract
Increased Lipoprotein associated phospholipase A2 (LpPLA2) has been associated with inflammatory pathologies, including Type 2 Diabetes. Studies on LpPLA2 and Gestational Diabetes Mellitus (GDM) are rare, and have focused mostly on maternal outcome. In the present study, we investigated whether LpPLA2 activity on foetal lipoproteins is altered by maternal GDM and/or obesity (a major risk factor for GDM), thereby contributing to changes in lipoprotein functionality. We identified HDL as the major carrier of LpPLA2 activity in the foetus, which is in contrast to adults. We observed marked expression of LpPLA2 in placental macrophages (Hofbauer cells; HBCs) and found that LpPLA2 activity in these cells was increased by insulin, leptin, and pro-inflammatory cytokines. These regulators were also increased in plasma of children born from GDM pregnancies. Our results suggest that insulin, leptin, and pro-inflammatory cytokines are positive regulators of LpPLA2 activity in the foeto-placental unit. Of particular interest, functional assays using a specific LpPLA2 inhibitor suggest that high-density lipoprotein (HDL)-associated LpPLA2 exerts anti-oxidative, athero-protective functions on placental endothelium and foetus. Our results therefore raise the possibility that foetal HDL-associated LpPLA2 might act as an anti-inflammatory enzyme improving vascular barrier function.
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Affiliation(s)
| | - Birgit Hirschmugl
- Department of Obstetrics and Gynaecology, Medical University of Graz, Graz, Austria
- BioTechMed-Graz, Graz, Austria
| | - Susanne Kopp
- Department of Obstetrics and Gynaecology, Medical University of Graz, Graz, Austria
| | - Sanja Curcic
- Department of Clinical and Experimental Pharmacology, Medical University of Graz, Graz, Austria
| | - Eva Maria Bernhart
- Institute of Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Gunther Marsche
- Department of Clinical and Experimental Pharmacology, Medical University of Graz, Graz, Austria
| | - Uwe Lang
- Department of Obstetrics and Gynaecology, Medical University of Graz, Graz, Austria
| | - Gernot Desoye
- Department of Obstetrics and Gynaecology, Medical University of Graz, Graz, Austria
| | - Christian Wadsack
- Department of Obstetrics and Gynaecology, Medical University of Graz, Graz, Austria.
- BioTechMed-Graz, Graz, Austria.
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Zhang R, Song Q, Liu H, Bai H, Zhang Y, Liu Q, Guan L, Fan P. Effect of the R92H and A379V genotypes of platelet-activating factor acetylhydrolase on its enzyme activity, oxidative stress and metabolic profile in Chinese women with polycystic ovary syndrome. Lipids Health Dis 2017; 16:57. [PMID: 28320416 PMCID: PMC5359970 DOI: 10.1186/s12944-017-0448-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 03/09/2017] [Indexed: 02/15/2023] Open
Abstract
Background The G994T polymorphism in platelet-activating factor acetylhydrolase (PAF-AH) gene is associated with the risk of polycystic ovary syndrome (PCOS). The aim of this study was to investigate the relationship between R92H and A379V variants of the PAF-AH gene and the risk of PCOS and to evaluate the effects of the genotypes on PAF-AH activities and clinical, metabolic and oxidative stress indexes in Chinese women. Methods A total of 862 patients with PCOS based on the Rotterdam consensus criteria and 750 control women from a population of Chinese Han nationality in the Chengdu area were studied from 2006–2015. PAF-AH genotypes were determined by PCR and restriction fragment length polymorphism analysis. Plasma PAF-AH, high-density lipoprotein (HDL)-associated PAF-AH (H-PAF-AH) and apolipoprotein (apo) B-containing lipoprotein-associated PAF-AH (apoB-PAF-AH) activities were measured using the trichloroacetic acid precipitation procedure with PAF C-16 as a substrate. Circulating markers of oxidative stress, including serum total oxidant status, total antioxidant capacity, oxidative stress index and malondialdehyde levels, and clinical and metabolic parameters were also analyzed. Results No significant differences were observed in the frequencies of R92H and A379V genotypes and alleles of the PAF-AH gene between PCOS and control groups (P > 0.05). Compared with patients with the 92RR genotype, patients with H allele of R92H (RH + HH genotype) had significantly higher plasma PAF-AH and apoB-PAF-AH activities (P < 0.05) and tended to exhibit increased H-PAF-AH activity (P = 0.063) after adjusted for age and BMI. However, when serum LDL-C, HDL-C, TG and HOMA index were added as covariates, the comparisons no longer remained statistical significance (P > 0.05). There were no significant differences in clinical, hormonal, metabolic and circulating oxidative stress parameters and the frequencies of PAF-AH G449T genotype according to PAF-AH R92H or A379V genotyping in patients with PCOS and control women. Conclusions There were no significant associations between R92H and A379V variants of PAF-AH gene and risk of PCOS in Chinese women. The increased plasma PAF-AH and apoB-PAF-AH activities in patients with H allele of R92H are related to the R92 → H variation, changes in plasma lipoprotein levels, insulin resistance, aging, and gaining weight and thus may be involved in the pathogenesis of PCOS and the increased risks of future cardiovascular diseases.
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Affiliation(s)
- Renjiao Zhang
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Qi Song
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Hongwei Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Huai Bai
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Yujin Zhang
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Qingqing Liu
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Linbo Guan
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Ping Fan
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China.
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