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Insulin Resistence

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https://www.readbyqxmd.com/read/28343312/role-of-acid-base-homeostasis-in-diabetic-kidney-disease
#1
REVIEW
Pascale Khairallah, Julia J Scialla
PURPOSE OF REVIEW: Acid-base homeostasis is impaired in chronic kidney disease (CKD) and may contribute to disease progression. Diabetes, a major cause of CKD worldwide, may exacerbate acidosis further due to differences in acid production and excretion. Here, we review the role of abnormal acid-base homeostasis in the pathogenesis and progression of diabetes and diabetic kidney disease. RECENT FINDINGS: Acidosis and dietary acid loading may contribute to the development and worsening of insulin resistance and hypertension, thereby promoting diabetes and diabetic CKD...
April 2017: Current Diabetes Reports
https://www.readbyqxmd.com/read/28342967/the-effects-of-omega-3-fatty-acids-and-vitamin-e-co-supplementation-on-clinical-and-metabolic-status-in-patients-with-parkinson-s-disease-a-randomized-double-blind-placebo-controlled-trial
#2
Mohsen Taghizadeh, Omid Reza Tamtaji, Ehsan Dadgostar, Reza Daneshvar Kakhaki, Fereshteh Bahmani, Javad Abolhassani, Mohammad Hossein Aarabi, Ebrahim Kouchaki, Mohammad Reza Memarzadeh, Zatollah Asemi
The current research was performed to evaluate the effects of omega-3 fatty acids and vitamin E co-supplementation on clinical signs and metabolic status in people with Parkinson's disease (PD). This randomized double-blind placebo-controlled clinical trial was conducted in 60 patients with PD. Participants were randomly assigned into two groups to receive either 1000 mg omega-3 fatty acids from flaxseed oil plus 400 IU vitamin E supplements (n = 30) or placebo (n = 30) for 12 weeks. Unified Parkinson's disease rating stage (UPDRS) were recorded at baseline and the after 3-month intervention...
March 22, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28342842/protectin-dx-suppresses-hepatic-gluconeogenesis-through-ampk-ho-1-mediated-inhibition-of-er-stress
#3
Tae Woo Jung, Hyung-Chun Kim, Ji Hoon Jeong
Several studies have shown that protectins, which are ω-3 fatty acid-derived proresolution mediators, may improve insulin resistance. Recently, protectin DX (PDX) was documented to attenuate insulin resistance by stimulating IL-6 expression in skeletal muscle, thereby regulating hepatic gluconeogenesis. These findings made us investigate the direct effects of PDX on hepatic glucose metabolism in the context of diabetes. In the current study, we show that PDX regulates hepatic gluconeogenesis in a manner distinct from its indirect glucoregulatory activity via IL-6...
March 22, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28342765/hippocampal-insulin-resistance-and-altered-food-decision-making-as-players-on-obesity-risk
#4
REVIEW
Amanda Brondani Mucellini, Natasha Kim de Oliveira da Fonseca, Gisele Gus Manfro, Patrícia Pelufo Silveira
There are increasing evidences that hippocampus can modulate the decision of what, when and how much to eat, in addition to its already recognized role in learning and memory processes. Insulin also has been linked to brain functions such as feeding behavior and the imbalance of its mechanism of action on hippocampus is being related to cognitive dysfunction. The discussion here is whether changes in insulin action could contribute to intake dysregulation and obesogenic behavior as a primary consequence of impairing hippocampal functioning, aside from the role of this hormone on obesity development through peripheral metabolic pathways...
March 22, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28340367/insulin-resistance-is-associated-with-carotid-intima-media-thickness-in-non-diabetic-subjects-a-cross-sectional-analysis-of-the-elsa-brasil-cohort-baseline
#5
Itamar S Santos, Márcio S Bittencourt, Alessandra C Goulart, Maria Inês Schmidt, Maria de Fátima H S Diniz, Paulo A Lotufo, Isabela M Benseñor
BACKGROUND AND AIMS: Epidemiological studies have analyzed the association between carotid intima-media thickness (CIMT) and insulin resistance, glucose levels or glycated hemoglobin with mixed results. We aimed to evaluate the association between CIMT and homeostasis model assessment - insulin resistance (HOMA-IR), fasting and post-load plasma glucose and glycated hemoglobin in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) baseline. METHODS: We included 8028 participants (aged 35-74 years) without diabetes or overt cardiovascular disease who had complete CIMT data at baseline...
March 10, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28340361/hdl-inhibits-saturated-fatty-acid-mediated-augmentation-of-innate-immune-responses-in-endothelial-cells-by-a-novel-pathway
#6
Wei-Yang Zhang, Daniel A Franco, Eric Schwartz, Karen D'Souza, Sheetal Karnick, Peter D Reaven
BACKGROUND AND AIMS: Peripheral insulin resistance is associated with several metabolic abnormalities, including elevated serum fatty acids that contribute to vascular injury and atherogenesis. Our goals were to examine whether saturated fatty acids can modify innate immune responses to subclinical concentrations of lipopolysaccharide (LPS) in endothelial cells, and to explore the underlying pathway and determine whether it is modified by high density lipoprotein (HDL) and other factors commonly altered in insulin resistance...
September 8, 2016: Atherosclerosis
https://www.readbyqxmd.com/read/28340087/nutrigenomic-point-of-view-on-effects-and-mechanisms-of-action-of-ruminant-trans-fatty-acids-on-insulin-resistance-and-type-2-diabetes
#7
Bénédicte L Tremblay, Iwona Rudkowska
Evidence from observational studies suggests beneficial effects of ruminant trans fatty acids (rTFA) on insulin resistance (IR) and type 2 diabetes (T2D). However, beneficial effects of rTFA are not always observed in cell, animal, and human studies. This narrative review presents potential mechanisms of action of rTFA using nutrigenomics and microRNA results in an integrative model. In addition, the review presents factors, including measures of IR and T2D, dose and duration of studies, as well as health status, ethnicity, and genotypes of subjects, that may help explain the heterogeneity in response to rTFA supplementation...
March 7, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/28339345/alanine-aminotransferase-is-a-marker-of-lipotoxicity-consequences-and-hyperandrogenemia-in-women-with-polycystic-ovary-syndrome
#8
Matea Belan, Chloé Pelletier, Jean-Patrice Baillargeon
BACKGROUND: Several studies have reported higher levels of Alanine aminotransferase (ALT) in women with polycystic ovary syndrome (PCOS) compared with control subjects. Plasma ALT levels are considered a marker of hepatic lipotoxicity because of their significant associations with different hepatic metabolic dysfunctions, such as hepatic steatosis and hepatic insulin resistance. METHODS: Retrospective chart review aiming to assess, in PCOS women, the relationship between ALT levels and measures of lipotoxicity consequences that are available clinically, both during fasting and using the oral glucose tolerance test...
April 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28339060/chronological-changes-in-the-expression-of-phosphorylated-tau-and-5%C3%A2-amp%C3%A2-activated-protein-kinase-in-the-brain-of-senescence%C3%A2-accelerated-p8-mice
#9
Hak-Su Kim, Sohee Moon, Sujin Kim, Min-Jae Lee, Min Hwa Suk, Dong-Ho Park, Dong Wun Shin, Chang-Shin Park, Ju-Hee Kang
Senescence-accelerated mouse prone 8 (SAMP8), a non‑transgenic animal model used for researching sporadic Alzheimer's disease (AD), presents AD pathologies and overall dysregulation in brain energy metabolism, which is one of the early pathogenic characteristics of AD. In the present study, the authors examined chronological changes in the expression patterns of phosphorylated tau and of proteins related to energy metabolism to evaluate the association of tau phosphorylation and metabolism, using young‑ (2‑months‑old), middle‑ (5‑months‑old) and old‑aged (10‑months‑old) SAMP8...
March 23, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28338890/metabolic-syndrome-and-insulin-resistance-are-associated-with-frailty-in-older-adults-a-prospective-cohort-study
#10
Raúl F Pérez-Tasigchana, Luz M León-Muñoz, Esther Lopez-Garcia, Juan L Gutierrez-Fisac, Martín Laclaustra, Fernando Rodríguez-Artalejo, Pilar Guallar-Castillón
Background: diabetes increases the risk of frailty that is a leading cause of disability and premature mortality in older people. Metabolic syndrome (MS) and insulin resistance (IR) are strong risk factors for diabetes and could, thus, lead to frailty. However, the association between MS or IR and frailty has barely been investigated. Methods: data were obtained from a cohort of 1,499 community-dwelling individuals aged ≥60, who were free of diabetes at 2008-10 and were followed up for 3...
March 1, 2017: Age and Ageing
https://www.readbyqxmd.com/read/28338397/clove-and-its-active-compound-attenuate-free-fatty-acid-mediated-insulin-resistance-in-skeletal-muscle-cells-and-in-mice
#11
Safina Ghaffar, Shabbir Khan Afridi, Meha Fatima Aftab, Munazza Murtaza, Rahman M Hafizur, Sara Sara, Sabira Begum, Rizwana Sanaullah Waraich
Several reports indicate anti-hyperglycemic effects of Syzygium aromaticum. In the present study, we report for the first time that clove extract (SAM) and its compound nigricin (NGC) decreases free fatty acid-mediated insulin resistance in mouse myoblasts. In addition, NGC was able to diminish insulin resistance in a diabetic mouse model. We observed that SAM and its compound NGC exhibited significant antioxidant activity in murine skeletal muscle cells. They also modulated stress signaling by reducing p38 MAP kinase phosphorylation...
March 24, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28338021/absence-of-a-gestational-diabetes-phenotype-in-the-leprdb-mouse-is-independent-of-control-strain-diet-misty-allele-or-parity
#12
Jasmine F Plows, XinYang Yu, Ric Broadhurst, Mark H Vickers, Chao Tong, Hua Zhang, HongBo Qi, Joanna L Stanley, Philip N Baker
Treatment options for gestational diabetes (GDM) are limited. In order to better understand mechanisms and improve treatments, appropriate animal models of GDM are crucial. Heterozygous db mice (db/+) present with glucose intolerance, insulin resistance, and increased weight gain during, but not prior to, pregnancy. This makes them an ideal model for GDM. However, several recent studies have reported an absence of GDM phenotype in their colony. We investigated several hypotheses for why the phenotype may be absent, with the aim of re-establishing it and preventing further resources being wasted on an ineffective model...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336389/metformin-ameliorates-uterine-defects-in-a-rat-model-of-polycystic-ovary-syndrome
#13
Yuehui Zhang, Min Hu, Fanci Meng, Xiaoyan Sun, Hongfei Xu, Jiao Zhang, Peng Cui, Njomeza Morina, Xin Li, Wei Li, Xiao-Ke Wu, Mats Brännström, Ruijin Shao, Håkan Billig
Adult rats treated concomitantly with insulin and human chorionic gonadotropin exhibit endocrine, metabolic, and reproductive abnormalities that are very similar to those observed in polycystic ovary syndrome (PCOS) patients. In this study, we used this rat model to assess the effects of metformin on PCOS-related uterine dysfunction. In addition to reducing androgen levels, improving insulin sensitivity, and correcting the reproductive cycle, metformin treatment induced morphological changes in the PCOS-like uterus...
March 18, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28336108/vitamin-d-increases-ppar%C3%AE-expression-and-promotes-beneficial-effects-of-physical-activity-in-metabolic-syndrome
#14
Rastegar Hoseini, Arsalan Damirchi, Parvin Babaei
OBJECTIVES: Peroxisome proliferator-activated receptor (PPAR) and vitamin D signaling pathways regulate a multitude of genes involved in different physiological functions. The aim of the present study was to examine the effects of vitamin D supplementation and aerobic training on metabolic syndrome and PPARγ expression. METHODS: Forty female ovariectomized rats were divided into five groups of aerobic training with high (OVX + Exe + HD), moderate (OVX + Exe + MD), and low dose of vitamin D (OVX + Exe + LD), aerobic training receving vehicle (sesame oil; OVX + Exe + oil), and sham-operated control (sham) groups...
April 2017: Nutrition
https://www.readbyqxmd.com/read/28335761/the-effects-of-jiao-tai-wan-on-sleep-inflammation-and-insulin-resistance-in-obesity-resistant-rats-with-chronic-partial-sleep-deprivation
#15
Xin Zou, Wenya Huang, Fuer Lu, Ke Fang, Dingkun Wang, Shuyong Zhao, Jiming Jia, Lijun Xu, Kaifu Wang, Nan Wang, Hui Dong
BACKGROUND: Jiao-Tai-Wan (JTW), composed of Rhizome Coptidis and Cortex Cinnamomi, is a classical traditional Chinese prescription for treating insomnia. Several in vivo studies have concluded that JTW could exert its therapeutical effect in insomnia rats. However, the specific mechanism is still unclear. The present study aimed to explore the effect of JTW on sleep in obesity-resistant (OR) rats with chronic partial sleep deprivation (PSD) and to clarify its possible mechanism. METHODS: JTW was prepared and the main components contained in the granules were identified by 3D-High Performance Liquid Chromatography (3D-HPLC) assay...
March 23, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28335697/investigation-of-a-lifestyle-intervention-in-women-at-high-risk-of-breast-cancer
#16
Claire J Han, Larissa A Korde, Scott Reding, Kristen Allott, Matt Van Doren, Yvonne Schwarz, Catalina Vaughan, Kerryn W Reding
One fourth of breast cancer can be attributed to sedentary lifestyles and being overweight or obese. This pilot study was conducted to explore whether a 6-month lifestyle intervention affected body composition and obesity-related biomarkers among women at high risk of breast cancer. Overweight/obese women at high risk of breast cancer were randomized to the control group or to the intervention. The intervention was an individually tailored, cognitive-behavioral therapy program that assists women in identifying strategies to improve their nutrition and physical activity habits with the goal of reduced adiposity...
March 1, 2017: Western Journal of Nursing Research
https://www.readbyqxmd.com/read/28335560/serum-amyloid-a-production-is-triggered-by-sleep-deprivation-in-mice-and-humans-is-that-the-link-between-sleep-loss-and-associated-comorbidities
#17
Edson M de Oliveira, Bruna Visniauskas, Sergio Tufik, Monica L Andersen, Jair R Chagas, Ana Campa
Serum amyloid A (SAA) was recently associated with metabolic endotoxemia, obesity and insulin resistance. Concurrently, insufficient sleep adversely affects metabolic health and is an independent predisposing factor for obesity and insulin resistance. In this study we investigated whether sleep loss modulates SAA production. The serum SAA concentration increased in C57BL/6 mice subjected to sleep restriction (SR) for 15 days or to paradoxical sleep deprivation (PSD) for 72 h. Sleep restriction also induced the upregulation of Saa1...
March 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28335507/hydroxytyrosol-in-the-prevention-of-the-metabolic-syndrome-and-related-disorders
#18
REVIEW
Julien Peyrol, Catherine Riva, Marie Josèphe Amiot
Virgin olive oil (VOO) constitutes the main source of fat in the Mediterranean diet. VOO is rich in oleic acid, displaying health-promoting properties, but also contains minor bioactive components, especially phenolic compounds. Hydroxytyrosol (HT), the main polyphenol of olive oil, has been reported to be the most bioactive component. This review aims to compile the results of clinical, animal and cell culture studies evaluating the effects of HT on the features of Metabolic Syndrome (MetS) (body weight/adiposity, dyslipidemia, hypertension, and hyperglycemia/insulin resistance) and associated complications (oxidative stress and inflammation)...
March 20, 2017: Nutrients
https://www.readbyqxmd.com/read/28335075/breastmilk-with-a-high-omega-6-to-omega-3-fatty-acid-ratio-induced-cellular-events-similar-to-insulin-resistance-and-obesity-in-3t3-l1-adipocytes
#19
H Vaidya, S K Cheema
BACKGROUND: An imbalance of omega (n)-3 and n-6 polyunsaturated fatty acids (PUFA) during critical periods of development may have adverse effects on the health of the newborn in later life. OBJECTIVES: We hypothesized that breastmilk with higher n-6 to n-3 PUFA ratio will have higher inflammatory cytokines and initiate cellular events similar to insulin resistance and obesity. METHODS: Breastmilk was collected from healthy women who gave natural birth at full term...
March 23, 2017: Pediatric Obesity
https://www.readbyqxmd.com/read/28334990/insulin-resistance-and-exendin-4-treatment-for-multiple-system-atrophy
#20
Fares Bassil, Marie-Hélène Canron, Anne Vital, Erwan Bezard, Yazhou Li, Nigel H Greig, Seema Gulyani, Dimitrios Kapogiannis, Pierre-Olivier Fernagut, Wassilios G Meissner
Multiple system atrophy is a fatal sporadic adult-onset neurodegenerative disorder with no symptomatic or disease-modifying treatment available. The cytopathological hallmark of multiple system atrophy is the accumulation of α-synuclein aggregates in oligodendrocytes, forming glial cytoplasmic inclusions. Impaired insulin/insulin-like growth factor-1 signalling (IGF-1) and insulin resistance (i.e. decreased insulin/IGF-1) have been reported in other neurodegenerative disorders such as Alzheimer's disease. Increasing evidence also suggests impaired insulin/IGF-1 signalling in multiple system atrophy, as corroborated by increased insulin and IGF-1 plasma concentrations in multiple system atrophy patients and reduced IGF-1 brain levels in a transgenic mouse model of multiple system atrophy...
March 14, 2017: Brain: a Journal of Neurology
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