Free Fatty Acids–Mediated Inflammation and Insulin Resistance/Insulin Production in Healthy and Gestational Diabetes Pregnant Women

Diabetes ◽  
2018 ◽  
Vol 67 (Supplement 1) ◽  
pp. 225-OR
Author(s):  
XINHUA CHEN ◽  
THOMAS P. STEIN ◽  
THERESA O. SCHOLL ◽  
ROBERT A. STEER
Keyword(s):  
Insulin Resistance ◽  
Fatty Acids ◽  
Gestational Diabetes ◽  
Free Fatty Acids ◽  
Pregnant Women ◽  
Insulin Production

scholarly journals Plasma Levels of Free Fatty Acids in Women with Gestational Diabetes and Its Intrinsic and Extrinsic Determinants: Systematic Review and Meta-Analysis

2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Jose Rafael Villafan-Bernal ◽  
Mariana Acevedo-Alba ◽  
Rodrigo Reyes-Pavon ◽  
Guillermo Andres Diaz-Parra ◽  
Diana Lucia Lip-Sosa ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Gestational Diabetes ◽  
Free Fatty Acids ◽  
Pregnant Women ◽  
Plasma Levels ◽  
Meta Analysis ◽  
Nonesterified Fatty Acids ◽  
Induce Insulin Resistance ◽  
The Mean ◽  
The Difference

Background. Free fatty acids, also known as nonesterified fatty acids, are proinflammatory molecules that induce insulin resistance in nonpregnant individuals. Nevertheless, the concentration of these molecules has not been systematically addressed in pregnant women. Objective. This meta-analysis is aimed at evaluating the difference in free fatty acid plasma levels between women with gestational diabetes and healthy pregnant controls and their intrinsic and extrinsic determinants. Methods. We performed a systematic search to find relevant studies published in English and Spanish using PubMed, SCOPUS, and ISI Web of Knowledge. We included observational studies measuring the mean plasma levels of free fatty acids among gestational diabetes and healthy pregnant women, with at least ten subjects being analyzed in each group. The standardized mean difference (SMD) by random effects modeling was used. Heterogeneity was assessed using Cochran’s Q, H, and I2 statistics. Results. Among the 290 identified studies, twelve were selected for analysis. A total of 2426 women were included, from which 21% were diagnosed as having gestational diabetes. There were significantly higher levels of free fatty acids among women with gestational diabetes (SMD: 0.86; 0.54-1.18; p<0.001) when compared to healthy pregnant controls and between-study heterogeneity (I2=91%). The metaregression analysis showed that the gestational age at inclusion was the only cofactor influencing the mean levels of free fatty acids, indicating a trend towards lower plasma levels of free fatty acids later in gestation (estimate: -0.074; -0.143 to -0.004; p=0.036). No significant publication bias was found nor a trend towards greater results in small studies. Conclusions. Women with gestational diabetes have higher levels of free fatty acids when compared to healthy pregnant controls. More investigation is needed to assess the potential role of free fatty acids in the prediction of gestational diabetes earlier in pregnancy.

scholarly journals Individual free fatty acids have unique associations with inflammatory biomarkers, insulin resistance and insulin secretion in healthy and gestational diabetic pregnant women

2019 ◽  
Vol 7 (1) ◽  
pp. e000632 ◽  
Author(s):  
Xinhua Chen ◽  
T Peter Stein ◽  
Robert A Steer ◽  
Theresa O Scholl
Keyword(s):  
Insulin Resistance ◽  
Fatty Acids ◽  
Insulin Secretion ◽  
Free Fatty Acids ◽  
Pregnant Women ◽  
Inflammatory Biomarkers ◽  
Model Assessment ◽  
Necrosis Factor Alpha ◽  
C Peptide ◽  
Increased Risk

ObjectiveWe investigated the relationships of maternal circulating individual free fatty acids (FFA) with insulin resistance, insulin secretion and inflammatory biomarkers during mid-pregnancy.Research design and methodsThe data were drawn from a prospective cohort of generally healthy pregnant women (n=1368, African-American 36%, Hispanic 48%, Caucasian 16%) in Camden, NJ. We quantitatively determined 11 FFAs, seven cytokine/adipokine, homeostatic model assessment of insulin resistance (HOMA-IR) and C-peptide levels from the fasting blood samples that were collected at 16 weeks of gestation. Multivariate analyses were performed along with separate analyses for each individual FFA.ResultsHigh HOMA-IR (p<0.001) and C-peptide (p<0.0001) levels were positively associated with a twofold to fourfold increased risk for developing gestational diabetes mellitus (GDM). Negative relationships were found with specific FFAs (molecular percentage, palmitoleic, oleic, linolenic, myristic acids) and HOMA-IR and C-peptide levels (p<0.01 to p<0.0001). In contrast, palmitic, stearic, arachidonic, dihomo-γ-linolenic (DGLA) and docosahexaenoic acids were positively associated with HOMA-IR and C-peptide (p<0.01 to p<0.0001). The individual FFAs also predicted cytokine/adipokine levels. For example, women who had elevated DGLA (highest quartile) were twice as (adjusted OR 2.06, 95% CI 1.42 to 2.98) likely to have higher interleukin (IL)-8 (p<0.0001) levels. Conversely, women with high palmitoleic, oleic, and linolenic acid levels had reduced odds (≥2-fold, p<0.01 to p<0.001) for having higher IL-8, IL-6 or tumor necrosis factor-alpha levels.ConclusionOur results suggest that maternal individual FFAs uniquely affect insulin resistance and secretion. The effects are either direct or indirect via modulation of the inflammatory response. Modifying the composition of FFAs may help in reducing the risk of GDM.

The Relationship of Fasting Free Fatty Acids, Adipose Tissue, Insulin Resistance, and Fasting Glucose Concentrations with Subsequent ß-Cell Function in Nondiabetic Subjects

Diabetes ◽  
2018 ◽  
Vol 67 (Supplement 1) ◽  
pp. 1812-P
Author(s):  
MARIA D. HURTADO ◽  
J.D. ADAMS ◽  
MARCELLO C. LAURENTI ◽  
CHIARA DALLA MAN ◽  
CLAUDIO COBELLI ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Fatty Acids ◽  
Adipose Tissue ◽  
Free Fatty Acids ◽  
Cell Function ◽  
Fasting Glucose ◽  
Relationship Of ◽  
The Relationship

The effects of pre-pregnancy obesity and gestational weight gain on maternal lipid profiles, fatty acids and insulin resistance

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Muge Gul Gulecoglu Onem ◽  
Canan Coker ◽  
Kemal Baysal ◽  
Sabahattin Altunyurt ◽  
Pembe Keskinoglu
Keyword(s):  
Insulin Resistance ◽  
Fatty Acids ◽  
Lipid Metabolism ◽  
Weight Gain ◽  
Pregnant Women ◽  
Total Cholesterol ◽  
Gestational Weight Gain ◽  
Hdl Cholesterol ◽  
Second Trimester ◽  
Gestational Weight

Abstract Objectives Pregnancy is associated with physiological alterations in insulin sensitivity and lipid metabolism. This study investigates the associations between pregestational body mass index (pBMI) and the rate of gestational weight gain (rGWG) in the second trimester with the biomarkers of lipid, fatty acids metabolism and insulin resistance. Methods Sixty nine pregnant women followed. The body weights of the pregnant women were measured and blood samples were obtained at 11–14th and 24–28th weeks of pregnancy. Glucose, total cholesterol, triglyceride, HDL cholesterol, LDL cholesterol, insulin levels and fatty acids were measured. Rate of GWG (kg/week) and The Homeostasis Model Assessment for Insulin Resistance (HOMA-IR) were calculated. The pregnant women were stratified according to their pBMI and the 2nd trimester rGWG. Results The rate of GWG was significantly higher for the group with pBMI<25, compared to the group with pBMI≥25 (p=0.024). Triglyceride, total cholesterol, LDL and HDL cholesterol were significantly increased in the second trimester compared with the first trimester. Palmitic acid, oleic acid, linoleic acid, myristic acid, docosahexaenoic acid (DHA), arachidonic acid (AA), total omega-6 (n − 6) and omega-3 (n − 3) fatty acid levels and n − 6/n − 3 ratio were significantly higher in the second trimester. Glucose was significantly decreased and insulin was increased in the second trimester. In the overweight/obese group; HOMA-IR, insulin, AA, palmitoleic acid and stearic acid were found to be high in comparison to the group with low/normal pBMI. No parameters were associated with rGWG. Conclusions The changes in lipid parameters, free fatty acids, insulin and HOMA-IR in the second trimester were compatible with the changes in lipid metabolism and the development of insulin resistance. Pregestational BMI was shown to have a stronger influence on lipid profile, insulin resistance, and fatty acids than rGWG.

Disruption of glucose homeostasis and induction of insulin resistance by elevated free fatty acids in human L02 hepatocytes

2009 ◽  
Vol 32 (5) ◽  
pp. 454-259 ◽  
Author(s):  
X. D. Wan ◽  
W. B. Yang ◽  
Y. Z. Xia ◽  
J. F. Wang ◽  
T. Lu ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Fatty Acids ◽  
Free Fatty Acids ◽  
Glucose Homeostasis

scholarly journals The consequences of obesity and excess weight gain in pregnancy

2011 ◽  
Vol 70 (4) ◽  
pp. 450-456 ◽  
Author(s):  
Jane E. Norman ◽  
Rebecca Reynolds
Keyword(s):  
Insulin Resistance ◽  
Weight Gain ◽  
Gestational Diabetes ◽  
Pregnant Women ◽  
Postpartum Haemorrhage ◽  
Maternal Obesity ◽  
Adverse Pregnancy Outcome ◽  
Operative Delivery ◽  
Adverse Pregnancy ◽  
In Pregnancy

The prevalence of obesity in pregnancy is rising exponentially; about 15–20% of pregnant women now enter pregnancy with a BMI which would define them as obese. This paper provides a review of the strong links between obesity and adverse pregnancy outcome which operate across a range of pregnancy complications. For example, obesity is associated with an increased risk of maternal mortality, gestational diabetes mellitus, thromboembolism, pre-eclampsia and postpartum haemorrhage. Obesity also complicates operative delivery; it makes operative delivery more difficult, increases complications and paradoxically increases the need for operative delivery. The risk of the majority of these complications is amplified by excess weight gain in pregnancy and increases in proportion to the degree of obesity, for example, women with extreme obesity have OR of 7·89 for gestational diabetes and 3·84 for postpartum haemorrhage compared to their lean counterparts. The consequences of maternal obesity do not stop once the baby is born. Maternal obesity programmes a variety of long-term adverse outcomes, including obesity in the offspring at adulthood. Such an effect is mediated at least in part via high birthweight; a recent study has suggested that the odds of adult obesity are two-fold greater in babies weighing more than 4 kg at birth. The mechanism by which obesity causes adverse pregnancy outcome is uncertain. This paper reviews the emerging evidence that hyperglycaemia and insulin resistance may both play a role: the links between hyperglycaemia in pregnancy and both increased birthweight and insulin resistance have been demonstrated in two large studies. Lastly, we discuss the nature and rationale for possible intervention strategies in obese pregnant women.

scholarly journals Expression of Dual-Specificity Phosphatase 9 in Placenta and Its Relationship with Gestational Diabetes Mellitus

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Qiang Wei ◽  
Xiaomin Pu ◽  
Li Zhang ◽  
Yi Xu ◽  
Meifan Duan ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Insulin Resistance ◽  
Body Mass Index ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Pregnant Women ◽  
Plasma Glucose ◽  
Mrna Levels ◽  
Gestational Week

Introduction. The aim of the present study was to examine placental levels of DUSP9 mRNA and protein and to investigate the potential role of DUSP9 in the development of gestational diabetes mellitus (GDM). Methods. Placental tissues from pregnant women with GDM (n=17) and normal healthy pregnant women (n=16) were collected at delivery. The expression of DUSP9 mRNA in placental tissue was analyzed by real-time PCR, while the expression of DUPS9 protein was evaluated by immunohistochemistry and western blot. Differences in the expression levels of DUSP9 mRNA and protein between the two groups were assessed, as well as potential correlations between DUSP9 mRNA expression levels and relevant clinical indicators. Results. Blood glucose levels were significantly higher in the GDM group than in the control group, based on an oral glucose tolerance test. DUSP9 protein was expressed in the placental cytotrophoblasts in both groups, and placental levels of DUSP9 protein and mRNA were significantly higher in women with GDM. Placental DUSP9 mRNA levels in all 33 women correlated moderately with delivery gestational week (R=0.465, P=0.006), fasting plasma glucose (R=0.350, P=0.046), 1-hour postload plasma glucose (R=0.363, P = 0.038), and 2-hour postload plasma glucose (R=0.366, P=0.036), but not with maternal age, preconception body mass index, prenatal body mass index, or neonatal birth weight. Multiple linear regression analysis indicated that delivery gestational week was an influence factor of DUSP9 mRNA levels (β1=0.026, P<0.05). Conclusions. DUSP9 upregulation in the placenta of GDM pregnant women may promote insulin resistance, which may correlate with the occurrence of GDM. But there is still possibility that DUSP9 upregulation was the results of insulin resistance and/or hyperglycemia. Further research is needed to explore the role of DUSP9 in GDM.

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