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Watkins OC, Cracknell-Hazra VKB, Pillai RA, Selvam P, Yong HEJ, Sharma N, Patmanathan SN, Cazenave-Gassiot A, Bendt AK, Godfrey KM, Lewis RM, Wenk MR, Chan SY. Myo-Inositol Moderates Glucose-Induced Effects on Human Placental 13C-Arachidonic Acid Metabolism. Nutrients 2022; 14:nu14193988. [PMID: 36235641 PMCID: PMC9572372 DOI: 10.3390/nu14193988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 11/16/2022] Open
Abstract
Maternal hyperglycemia is associated with disrupted transplacental arachidonic acid (AA) supply and eicosanoid synthesis, which contribute to adverse pregnancy outcomes. Since placental inositol is lowered with increasing glycemia, and since myo-inositol appears a promising intervention for gestational diabetes, we hypothesized that myo-inositol might rectify glucose-induced perturbations in placental AA metabolism. Term placental explants (n = 19) from women who underwent a mid-gestation oral glucose-tolerance-test were cultured with 13C-AA for 48 h in media containing glucose (5, 10 or 17 mM) and myo-inositol (0.3 or 60 µM). Newly synthesized 13C-AA-lipids were quantified by liquid-chromatography-mass-spectrometry. Increasing maternal fasting glycemia was associated with decreased proportions of 13C-AA-phosphatidyl-ethanolamines (PE, PE-P), but increased proportions of 13C-AA-triacylglycerides (TGs) relative to total placental 13C-AA lipids. This suggests altered placental AA compartmentalization towards storage and away from pools utilized for eicosanoid production and fetal AA supply. Compared to controls (5 mM glucose), 10 mM glucose treatment decreased the amount of four 13C-AA-phospholipids and eleven 13C-AA-TGs, whilst 17 mM glucose increased 13C-AA-PC-40:8 and 13C-AA-LPC. Glucose-induced alterations in all 13C-AA lipids (except PE-P-38:4) were attenuated by concurrent 60 µM myo-inositol treatment. Myo-inositol therefore rectifies some glucose-induced effects, but further studies are required to determine if maternal myo-inositol supplementation could reduce AA-associated pregnancy complications.
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Affiliation(s)
- Oliver C. Watkins
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Victoria K. B. Cracknell-Hazra
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore 117609, Singapore
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton SO17 1BJ, UK
| | - Reshma Appukuttan Pillai
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Preben Selvam
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Hannah E. J. Yong
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore 117609, Singapore
| | - Neha Sharma
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Sathya Narayanan Patmanathan
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Amaury Cazenave-Gassiot
- Department of Biochemistry and Precision Medicine TRP, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore 119077, Singapore
| | - Anne K. Bendt
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore 119077, Singapore
| | - Keith M. Godfrey
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton SO17 1BJ, UK
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton SO17 1BJ, UK
| | - Rohan M. Lewis
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton SO17 1BJ, UK
- Institute of Developmental Sciences, Faculty of Medicine, University of Southampton, Southampton SO17 1BJ, UK
| | - Markus R. Wenk
- Department of Biochemistry and Precision Medicine TRP, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore 119077, Singapore
| | - Shiao-Yng Chan
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore 117609, Singapore
- Correspondence: ; Tel.: +65-67-722-672
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Li K, Zhang X, Pei L, Chen G, Liu J, Wahlqvist ML, Zheng X, Li D. High Ratios of C20:4n-6/C20:5n-3 and Thromboxane B2/6-Keto-Prostaglandin F1αin Placenta Are Potential Risk Contributors for Neural Tube Defects: A Case-Control Study in Shanxi Province, China. Birth Defects Res 2017; 109:550-563. [DOI: 10.1002/bdr2.1003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 12/03/2016] [Accepted: 12/27/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Kelei Li
- Department of Food Science and Nutrition; Zhejiang University; Hangzhou China
| | - Xiaotian Zhang
- The Key Laboratory of Cell Proliferation and Regulation Biology of Ministry of Education, Institute of Cell Biology, College of Life Sciences; Beijing Normal University; Beijing China
- Institute of Population Research/WHO Collaborating Center on Reproductive Health and Population Science; Peking University; Beijing China
| | - Lijun Pei
- Institute of Population Research/WHO Collaborating Center on Reproductive Health and Population Science; Peking University; Beijing China
| | - Gong Chen
- Institute of Population Research/WHO Collaborating Center on Reproductive Health and Population Science; Peking University; Beijing China
| | - Jianmeng Liu
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health; Peking University Health Science Center; Beijing China
| | - Mark L. Wahlqvist
- Fuli Research Institute; Zhejiang University; Hangzhou China
- Monash Asia Institute and Department of Nutrition and Dietetics; Monash University; Melbourne Australia
| | - Xiaoying Zheng
- Institute of Population Research/WHO Collaborating Center on Reproductive Health and Population Science; Peking University; Beijing China
| | - Duo Li
- Department of Food Science and Nutrition; Zhejiang University; Hangzhou China
- Monash Asia Institute and Department of Nutrition and Dietetics; Monash University; Melbourne Australia
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Higa R, White V, Martinez N, Kurtz M, Capobianco E, Jawerbaum A. Safflower and olive oil dietary treatments rescue aberrant embryonic arachidonic acid and nitric oxide metabolism and prevent diabetic embryopathy in rats. Mol Hum Reprod 2010; 16:286-95. [DOI: 10.1093/molehr/gap109] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Activities of cyclooxygenases, and levels of prostaglandins E2 and F2alpha, in fetopathy associated with experimental diabetic gestation. DIABETES & METABOLISM 2009; 36:43-50. [PMID: 20045370 DOI: 10.1016/j.diabet.2009.06.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2009] [Revised: 06/22/2009] [Accepted: 06/22/2009] [Indexed: 11/23/2022]
Abstract
AIM The present study investigated the cyclooxygenase (COX) pathway to elucidate any changes that may be involved in the mechanism(s) underlying diabetic fetopathy. METHODS Diabetes was induced in female rats (n=12) by two successive daily injections of 55 mg/kg streptozotocin, while control animals (n=10) were injected with a buffer solution; hyperglycaemia was confirmed by blood glucose levels greater than 11 mmol/L. The study female rats were made pregnant and, on day 15 of gestation, the rats were sacrificed, and the fetuses, placentas and membranes dissected out of the uterine horns. Following morphological examination, the fetuses, placentas and membranes were homogenized, and used to measure COX activities and prostaglandin (PG) E(2) and PGF(2alpha) levels. RESULTS Fetuses from diabetic mothers exhibited significantly (P<0.05) shorter crown-to-rump lengths, lower body weights and heavier placental weights. The activity of COX-1 in the fetuses, placentas and membranes from diabetic mothers represented a small percentage of total COX activity compared with that of COX-2. The presence of a COX-1 inhibitor in the control and diabetic rats was investigated and found to be negative. The activity of COX-2 in malformed fetuses from diabetic mothers was significantly lower (P<0.05) compared with non-malformed fetuses from control and diabetic mothers. The mean level of PGE(2) in fetuses from diabetic mothers was significantly (P<0.05) lower than that in controls. In contrast, the biggest increases in PGF(2alpha) were observed in the malformed diabetic fetuses, placentas and membranes. CONCLUSION The increased production of PGF(2alpha) probably proceeds, at least in part, independently of the COX pathway and via the isoprostane route. However, it is unclear whether the relatively high levels of PGF(2alpha) are causally related to, or simply coincidental with, fetal malformation.
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Abstract
Argentina has a longstanding tradition of diabetes research, beginning with the seminal work of Prof. Bernardo A. Houssay, who was awarded the first Nobel Prize in Medical Sciences for his studies on the relationship between diabetes and pituitary function. Prof. Luis F. Leloir, who was also awarded the Nobel Prize for his work in carbohydrate metabolism, also inspired younger generations of biologists to work in the field of diabetes research. The aim of this paper is to provide a review of the contributions of Argentine researchers during the 1990s. This manuscript includes only reports of Argentine researchers working on diabetes in local laboratories and quoted in Medline. Thus, important contributions not reported in journals included in Medline or produced by Argentine researchers working abroad may have been omitted. The material consists of a brief description of clinical research (epidemiology and costs, metabolic control, associated risk factors, immunological aspects, and other clinical studies) and basic research (animal model with spontaneous diabetes, islet morphology and function in normal and pathological conditions, insulin action, metabolic disorders related to diabetes, and some miscellaneous effects related to drug-induced diabetes). Altogether, a broad idea of the continuous contribution of our national research to the international field of diabetes is provided, as well as a list of Argentine researchers and research centers devoted to the study of diabetes.
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Affiliation(s)
- J J Gagliardino
- CENEXA - Centro de Endocrinología Experimental y Aplicada (UNLP-CONICET, WHO Collaborating Center), Facultad de Ciencias Médicas, UNLP, La Plata, Argentina
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González E, Jawerbaum A, Novaro V, Sinner D, Gimeno M. Nitric oxide modulates placental prostanoid production from late pregnant non-insulin-dependent diabetic rat. Prostaglandins Leukot Essent Fatty Acids 1998; 59:299-304. [PMID: 9888203 DOI: 10.1016/s0952-3278(98)90077-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Severe reproductive dysfunction has been described in non-insulin-dependent diabetes mellitus (NIDDM), correlated with high glucose levels in the plasma. We have characterized an abnormal prostanoid profile in tissues from NIDDM rats, and a tight correlation between nitric oxide (NO) levels and prostaglandin production. Likewise, we have determined that parturition is delayed in NIDDM rats compared to control animals. In order to characterize the events which precede delayed parturition in NIDDM rats, we evaluate (a) the arachidonic acid (AA) conversion in placental tissue obtained from control (day 21 and 22) and NIDDM (day 21, 22 and 23) late pregnant rats into prostaglandin E2 (PGE2) and F2alpha (PGF2alpha), thromboxane B2 (TXB2) and 6-keto-prostaglandin F1alpha (6-keto-PGF1alpha), and (b) NO synthase (NOS) activity in control and NIDDM late pregnant animals. Placental arachidonate conversion from control rats into different prostanoids, namely PGE2, PGF2alpha, and TXB2, is higher in day 22 than in day 21, and radioconversion from diabetic rats into PGE2, PGF22, TXB2 and 6-keto-PGF1alpha on day 23 is higher than in day 21 and 22. 6-keto-PGF1alpha is lower and TXB2 is higher in diabetic tissues than in control. Placental AA conversion of control diabetic tissues on the day of delivery is decreased by N(G) monomethyl-L-arginine (LNMMA) (600 mM), a well known NOS inhibitor, while prostanoid production remains unaltered on previous days. NOS activity is higher in control on day 22 when compared to day 21, and in diabetic on day 23 when compared to day 22 of pregnancy. We conclude that elevated NO placental levels are observed in control (day 22) and NIDDM (day 23) rats, and may increase placental prostaglandin production on the day of delivery.
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Affiliation(s)
- E González
- Centro de Estudios Farmacologicos y Botánicos (CEFYBO), Consejo Nacional de Investigaciones Cientificas y Técnicas (CONICET), Buenos Aires, Argentina
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