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Fatty acid placenta

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https://www.readbyqxmd.com/read/28508539/the-effect-of-maternal-obesity-on-fatty-acid-transporter-expression-and-lipid-metabolism-in-the-full-term-placenta-of-lean-breed-swine
#1
L Tian, S S Dong, J Hu, J J Yao, P S Yan
This study was conducted to evaluate the influence of back-fat thickness (BF), at mating of sows, on the maternal and newborn circulating lipids, expression of placental fatty acids (FA) transporters and lipid accumulation in placenta. Full-term placentas were obtained by vaginal delivery from BFI (9-14 mm; n = 37), BFII (15-19 mm; n = 43) and BFIII (20-27 mm; n = 38) sows according to BF at mating, and frozen placental sections were analysed for fat accumulation. Blood samples were collected from the sows of day 105 pregnancy and from cord blood at delivery...
May 15, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28469097/effects-of-rapamycin-on-clinical-manifestations-and-blood-lipid-parameters-in-different-preeclampsia-like-mouse-models
#2
Yan-Hong Yi, Zi Yang, Yi-Wei Han, Jing Huai
BACKGROUND: The pathogenesis of some types of preeclampsia is related to fatty acid oxidation disorders. Rapamycin can regulate fatty acid metabolism. This study aimed to investigate the effects of rapamycin on the clinical manifestations and blood lipid parameters in different preeclampsia-like mouse models. METHODS: Two preeclampsia-like mouse models and a control group were established: L-NA (injected with Nω-nitro-L-arginine methyl ester), LPS (injected with lipopolysaccharide), and the control group with normal saline (NS)...
May 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28398620/high-ratios-of-c20-4n-6-c20-5n-3-and-thromboxane-b2-6-keto-prostaglandin-f1%C3%AE-in-placenta-are-potential-risk-contributors-for-neural-tube-defects-a-case-control-study-in-shanxi-province-china
#3
Kelei Li, Xiaotian Zhang, Lijun Pei, Gong Chen, Jianmeng Liu, Mark L Wahlqvist, Xiaoying Zheng, Duo Li
BACKGROUND: Neural tube defects (NTDs) are severe congenital malformations. Folate supplementation can reduce the risk, but cannot prevent all NTDs, suggesting other reasons for folate-resistant NTDs. The present study assesses placental fatty acid composition, eicosanoids, and cytokines as risk factors for NTDs in a Chinese population with highly incident NTDs. METHODS: Seventy-seven aborted fetuses with NTDs during the third trimester were cases and 142 healthy newborns were controls...
March 24, 2017: Birth Defects Res
https://www.readbyqxmd.com/read/28369926/uteroplacental-insufficiency-reduces-rat-plasma-leptin-concentrations-and-alters-placental-leptin-transporters-ameliorated-with-enhanced-milk-intake-and-nutrition
#4
Jessica F Briffa, Rachael O'Dowd, Karen M Moritz, Tania Romano, Lisa R Jedwab, Andrew J McAinch, Deanne H Hryciw, Mary E Wlodek
KEY POINTS: Uteroplacental insufficiency compromises maternal mammary development, milk production and pup organ development; this is ameliorated by cross-fostering, which improves pup growth and organ development and prevents adult diseases in growth-restricted (Restricted) offspring by enhancing postnatal nutrition. Leptin is transported to the fetus from the mother by the placenta; we report reduced plasma leptin concentrations in Restricted fetuses associated with sex-specific alterations in placental leptin transporter expression...
March 29, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28369354/genetic-modifications-of-mecr-reveal-a-role-for-mitochondrial-2-enoyl-coa-acp-reductase-in-placental-development-in-mice
#5
Remya R Nair, Juha M Kerätär, Kaija J Autio, Ali J Masud, Mikko A J Finnilä, Helena I Autio-Harmainen, Ilkka J Miinalainen, Pentti A Nieminen, J Kalervo Hiltunen, Alexander J Kastaniotis
Mitochondrial fatty acid synthesis (mtFAS) is an underappreciated but highly conserved metabolic process, indispensable for mitochondrial respiration. It was recently reported that dysfunction of mtFAS causes childhood onset of dystonia and optic atrophy in humans (MEPAN). To study the role of mtFAS in mammals, we generated three different mouse lines with modifications of the Mecr gene, encoding mitochondrial enoyl-CoA/ACP reductase (Mecr). A knock-out-first type mutation, relying on insertion of a strong transcriptional terminator between the first two exons of Mecr, displayed embryonic lethality over a broad window of time and due to a variety of causes...
June 1, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28301855/placental-lipid-and-fatty-acid-transfer-in-maternal-overnutrition
#6
Rohan M Lewis, Gernot Desoye
BACKGROUND: The increasing incidence of childhood obesity is a significant public health challenge, the consequences of which extend across the life course. SUMMARY: Diet and exercise are clearly the major contributors to childhood obesity, but the factors predisposing to obesity may become established in the womb. Worryingly maternal overnutrition, in particular when it leads to obesity and diabetes, perpetuate an intergenerational cycle of obesity through its effects on placental function and fetal metabolism...
March 17, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28292473/placental-dimethyl-acetal-fatty-acid-derivatives-are-elevated-in-preeclampsia
#7
M Brien, L Berthiaume, I Rudkowska, P Julien, J F Bilodeau
Preeclampsia (PE) was shown to affect the placental content and the transfer of polyunsaturated fatty acids (PUFA) to the fetus. Plasmalogens, a type of phospholipids with a vinyl-ether link at the sn-1 position, play an antioxidant role and are specifically enriched in PUFA at the sn-2 position. In this study, we characterized plasmalogen-derived dimethyl acetal (DMA) fatty acid derivatives, 16:0 DMA, 18:0 DMA, 9c-/11c-18:1 DMA and PUFA in the placenta of normotensive (n = 20) and PE (n = 20) pregnancies, according to the sampling site: peri-insertion or periphery...
March 2017: Placenta
https://www.readbyqxmd.com/read/28235645/modification-of-the-fatty-acid-composition-of-an-obesogenic-diet-improves-the-maternal-and-placental-metabolic-environment-in-obese-pregnant-mice
#8
Martina Gimpfl, Jan Rozman, Maik Dahlhoff, Raphaela Kübeck, Andreas Blutke, Birgit Rathkolb, Martin Klingenspor, Martin Hrabě de Angelis, Soner Öner-Sieben, Annette Seibt, Adelbert A Roscher, Eckhard Wolf, Regina Ensenauer
Peri-conceptional exposure to maternal obesogenic nutrition is associated with in utero programming of later-life overweight and metabolic disease in the offspring. We aimed to investigate whether dietary intervention with a modified fatty acid quality in an obesogenic high-calorie (HC) diet during the preconception and gestational phases can improve unfavourable effects of an adipogenic maternal environment. In NMRI mice, peri-conceptional and gestational obesity was induced by feeding a HC diet (controls), and they were compared with dams on a fat-modified (Fat-mod) HC diet of the same energy content but enriched with medium-chain fatty acids (MCFAs) and adjusted to a decreased ratio of n-6 to n-3 long-chain polyunsaturated fatty acids (LC-PUFAs)...
February 21, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28215301/neurotrophic-factors-and-maternal-nutrition-during-pregnancy
#9
M Dhobale
Maternal nutrition is one of the major determinants of pregnancy outcome. It has been suggested that reduced intakes or lack of specific nutrients during pregnancy influences the length of gestation, proper placental and fetal growth during pregnancy. Maternal nutrition, particularly micronutrients such as folate and vitamin B12, and long-chain polyunsaturated fatty acids (LCPUFA) are the major determinants of the one carbon cycle and are suggested to be at the heart of intrauterine programming of diseases in adult life...
2017: Vitamins and Hormones
https://www.readbyqxmd.com/read/28193219/the-effect-of-an-antenatal-lifestyle-intervention-in-overweight-and-obese-women-on-circulating-cardiometabolic-and-inflammatory-biomarkers-secondary-analyses-from-the-limit-randomised-trial
#10
RANDOMIZED CONTROLLED TRIAL
Lisa J Moran, Louise M Fraser, Tulika Sundernathan, Andrea R Deussen, Jennie Louise, Lisa N Yelland, Rosalie M Grivell, Anne Macpherson, Matthew W Gillman, Jeffrey S Robinson, Julie A Owens, Jodie M Dodd
BACKGROUND: Maternal overweight and obesity during pregnancy is associated with insulin resistance, hyperglycaemia, hyperlipidaemia and a low-grade state of chronic inflammation. The aim of this pre-specified analysis of secondary outcome measures was to evaluate the effect of providing antenatal dietary and lifestyle advice on cardiometabolic and inflammatory biomarkers. METHODS: We conducted a multicentre trial in which pregnant women who were overweight or obese were randomised to receive either Lifestyle Advice or Standard Care...
February 14, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28173875/restored-in-vivo-like-membrane-lipidomics-positively-influence-in-vitro-features-of-cultured-mesenchymal-stromal-stem-cells-derived-from-human-placenta
#11
Alexandros Chatgilialoglu, Martina Rossi, Francesco Alviano, Paola Poggi, Chiara Zannini, Cosetta Marchionni, Francesca Ricci, Pier Luigi Tazzari, Valentina Taglioli, Philip C Calder, Laura Bonsi
BACKGROUND: The study of lipid metabolism in stem cell physiology has recently raised great interest. The role of lipids goes beyond the mere structural involvement in assembling extra- and intra-cellular compartments. Nevertheless, we are still far from understanding the impact of membrane lipidomics in stemness maintenance and differentiation patterns. In the last years, it has been reported how in vitro cell culturing can modify membrane lipidomics. The aim of the present work was to study the membrane fatty acid profile of mesenchymal stromal cells (MSCs) derived from human fetal membranes (hFM-MSCs) and to correlate this to specific biological properties by using chemically defined tailored lipid supplements (Refeed®)...
February 7, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28125642/gdm-induced-macrosomia-is-reversed-by-cav-1-via-ampk-mediated-fatty-acid-transport-and-glut1-mediated-glucose-transport-in-placenta
#12
Guo Yao, Yafang Zhang, Di Wang, Ruirui Yang, Hui Sang, Linlin Han, Yuexia Zhu, Yanyan Lu, Yeke Tan, Zhanping Shang
OBJECTIVE: To investigate if the role of Cav-1 in GDM-induced macrosomia is through regulating AMPK signaling pathway in placenta. METHODS: We used diagnostic criteria of gestational diabetes mellitus (GDM) and macrosomia to separate and compare placental protein and mRNA levels from GDM with macrosomia group (GDMM), GDM with normal birth weight group (GDMN) and normal glucose tolerance (NGT) with normal birth weight group (CON). Western blotting was performed to examine differentially expressed proteins of caveolin-1 (Cav-1) and Adenosine monophosphate-activated protein kinase (AMPK) signaling pathway related proteins, including phosphorylated-AMPKα(Thr172), AMPKα, phosphorylated-Acetyl-CoA carboxylase(Ser79) (p-ACC(Ser79)), ACC and glucose transporter 1 (GLUT1) in placenta between the three groups...
2017: PloS One
https://www.readbyqxmd.com/read/28124800/trans-fatty-acid-accumulation-in-the-human-placenta
#13
Yoshiro Wada, Shumi Yoshida-Yamamoto, Yoshinao Wada, Masahiro Nakayama, Nobuaki Mitsuda, Hiroyuki Kitajima
Trans fatty acid may impair fetal growth and infant neurodevelopment, but the quantity in a placenta and human tissues remains unknown. To address the issue, a simple and reliable method of quantification is needed. We established a method of quantifying trans-octadecenoic acids (trans-6,8,9,11 18:1 fatty acids, TOAs), a major component of trans fatty acid, in human tissue samples, and then determined the TOAs level in the placenta. Oleic acid (OA) (C18:1(9c)) was measured by isotope dilution gas chromatography-mass spectrometry, and the TOAs level was subsequently calculated based on the ratio of the peak areas for TOAs and OA (TOAs/OA) in the mass chromatogram...
March 2017: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28111084/prepregnancy-maternal-diabetes-combined-with-obesity-impairs-placental-mitochondrial-function-involving-nrf2-are-pathway-and-detrimentally-alters-metabolism-of-offspring
#14
Yang Duan, Fuqiang Sun, Shengshun Que, Yueqin Li, Suyan Yang, Geli Liu
Metabolic disorders usually increase the level of reactive oxygen species (ROS) and damage mitochondrial function. The placenta supplies nutrients and hormonal signals to the fetus for regulating fetal metabolism, and is also prone to injury by oxidants. The aim of this study was to determine the effect of pre-existing maternal type 2 diabetes mellitus (DM) combined with obesity on placental mitochondrial function and metabolism disorders of offspring. The study included 96 pregnant women. The women were put into the following groups: healthy women (control, n=24), women with DM (DM, n=24), women with obesity (OB, n=24) and women with both DM and obesity (DM+OB, n=24)...
January 19, 2017: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/28110332/role-of-insulin-in-placental-transport-of-nutrients-in-gestational-diabetes-mellitus
#15
María Ruiz-Palacios, Antonio José Ruiz-Alcaraz, María Sanchez-Campillo, Elvira Larqué
BACKGROUND: Gestational diabetes mellitus (GDM) is associated with increased fetal adiposity, which may increase the risk of obesity in adulthood. The placenta has insulin receptors and maternal insulin can activate its signaling pathways, affecting the transport of nutrients to the fetus. However, the effects of diet or insulin treatment on the placental pathophysiology of GDM are unknown. SUMMARY: There are very few studies on possible defects in the insulin signaling pathway in the GDM placenta...
2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28061809/oxidative-stress-biomarkers-and-their-relationship-with-cytokine-concentrations-in-overweight-obese-pregnant-women-and-their-neonates
#16
María Hernández-Trejo, Araceli Montoya-Estrada, Yessica Torres-Ramos, Aurora Espejel-Núñez, Alberto Guzmán-Grenfell, Rosa Morales-Hernández, Maricruz Tolentino-Dolores, Estibalitz Laresgoiti-Servitje
BACKGROUND: Oxidative damage present in obese/overweight mothers may lead to further oxidative stress conditions or inflammation in maternal and cord blood samples. Thirty-four pregnant women/newborn pairs were included in this study to assess the presence of oxidative stress biomarkers and their relationship with serum cytokine concentrations. Oxidative stress biomarkers and antioxidant enzymes were compared between the mother/offspring pairs. The presence of 27 cytokines was measured in maternal and cord blood samples...
January 7, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28034722/specific-regions-of-the-brain-are-capable-of-fructose-metabolism
#17
Sarah A Oppelt, Wanming Zhang, Dean R Tolan
High fructose consumption in the Western diet correlates with disease states such as obesity and metabolic syndrome complications, including type II diabetes, chronic kidney disease, and non-alcoholic fatty acid liver disease. Liver and kidneys are responsible for metabolism of 40-60% of ingested fructose, while the physiological fate of the remaining fructose remains poorly understood. The primary metabolic pathway for fructose includes the fructose-transporting solute-like carrier transport proteins 2a (SLC2a or GLUT), including GLUT5 and GLUT9, ketohexokinase (KHK), and aldolase...
February 15, 2017: Brain Research
https://www.readbyqxmd.com/read/27986832/placental-and-cord-blood-methylation-of-genes-involved-in-energy-homeostasis-association-with-fetal-growth-and-neonatal-body-composition
#18
Marta Díaz, Cristina García, Giorgia Sebastiani, Francis de Zegher, Abel López-Bermejo, Lourdes Ibáñez
Low weight at birth associates with subsequent susceptibility to diabetes. Epigenetic modulation is among the mechanisms potentially mediating this association. We performed a genome-wide DNA methylation analysis in placentas from term infants born appropriate-for-gestational-age (AGA) or small-for-gestational-age (SGA), to identify new genes related to fetal growth and neonatal body composition. Candidate genes were validated by bisulfite pyrosequencing (30 AGA, 21 SGA) and also analyzed in cord blood. Gene expression analyses were performed by RT-PCR...
December 16, 2016: Diabetes
https://www.readbyqxmd.com/read/27936867/opportunities-for-probiotics-and-polyunsaturated-fatty-acids-to-improve-metabolic-health-of-overweight-pregnant-women
#19
REVIEW
K Mokkala, H Röytiö, U Ekblad, K Laitinen
Overweight during pregnancy predisposes both the mother and foetus to health complications. Maternal complications include gestational diabetes, obstetric problems and type 2 diabetes later in life. Complications for the offspring are not only restricted to the foetal period or birth, such as prematurity and foetal macrosomia, but may also have long-term metabolic health implications through the mechanism of early nutrition programming. One of the key metabolic components characterising overweight in the non-pregnant state is low-grade inflammation manifested by elevated levels of circulatory pro-inflammatory cytokines...
February 7, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/27913585/the-influence-of-placental-metabolism-on-fatty-acid-transfer-to-the-fetus
#20
Simone Perazzolo, Birgit Hirschmugl, Christian Wadsack, Gernot Desoye, Rohan M Lewis, Bram G Sengers
The factors determining fatty acid transfer across the placenta are not fully understood. This study used a combined experimental and computational modeling approach to explore placental transfer of nonesterified fatty acids and identify the rate-determining processes. Isolated perfused human placenta was used to study the uptake and transfer of (13)C-fatty acids and the release of endogenous fatty acids. Only 6.2 ± 0.8% of the maternal (13)C-fatty acids taken up by the placenta was delivered to the fetal circulation...
February 2017: Journal of Lipid Research
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