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Fat talk

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https://www.readbyqxmd.com/read/29340906/an-exploratory-study-on-the-intergenerational-transmission-of-obesity-and-dieting-proneness
#1
Elizabeth A Claydon, Keith J Zullig, Christa L Lilly, Stephanie C Zerwas, Danielle M Davidov, Lesley Cottrell, Marney A White
PURPOSE: There is a paucity of research exploring individuals' memories of parental dieting behavior, engagement in "fat talk", or criticism of weight or eating behavior in childhood. This exploratory study utilized a community sample to further characterize the retrospective report of parenting dieting behavior. METHODS: A total of 507 participants (78.1% females; 20.7% males; and 1.2% transgender) were recruited to participate in an online, self-administered survey...
January 16, 2018: Eating and Weight Disorders: EWD
https://www.readbyqxmd.com/read/29318960/the-role-of-inflammation-in-epicardial-adipose-tissue-in-heart-diseases
#2
Zdenek Matloch, Anna Cinkajzlova, Milos Mraze, Martin Haluzik
Epicardial adipose tissue is not only a specific adipose tissue depot but also an active endocrine organ producing numerous substances with an important role in the development of obesity-related heart diseases. It is located between myocardium and visceral pericardium and consists predominantly of adipocytes, immunocompetent cells, ganglia and interconnecting nerve branches. Several studies documented a positive correlation between pericardial and epicardial fat and left ventricular hypertrophy and septal thickening, leading to diastolic dysfunction, electrocardiographic abnormalities and facilitating cardiac failure...
January 9, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29241453/bile-acid-is-a-significant-host-factor-shaping-the-gut-microbiome-of-diet-induced-obese-mice
#3
Xiaojiao Zheng, Fengjie Huang, Aihua Zhao, Sha Lei, Yunjing Zhang, Guoxiang Xie, Tianlu Chen, Chun Qu, Cynthia Rajani, Bing Dong, Defa Li, Wei Jia
BACKGROUND: Intestinal bacteria are known to regulate bile acid (BA) homeostasis via intestinal biotransformation of BAs and stimulation of the expression of fibroblast growth factor 19 through intestinal nuclear farnesoid X receptor (FXR). On the other hand, BAs directly regulate the gut microbiota with their strong antimicrobial activities. It remains unclear, however, how mammalian BAs cross-talk with gut microbiome and shape microbial composition in a dynamic and interactive way. RESULTS: We quantitatively profiled small molecule metabolites derived from host-microbial co-metabolism in mice, demonstrating that BAs were the most significant factor correlated with microbial alterations among all types of endogenous metabolites...
December 14, 2017: BMC Biology
https://www.readbyqxmd.com/read/29225005/eicosanoid-mediated-immunity-in-insects
#4
Yonggyun Kim, Shabbir Ahmed, David Stanley, Chunju An
Eicosanoid is a collective term for oxygenated metabolites of C20 polyunsaturated fatty acids. As seen in mammals, eicosanoids play crucial roles in mediating various physiological processes, including immune responses, in insects. Upon microbial pathogen infection, non-self recognition signals are propagated to nearly immune effectors such as hemocytes and fat body using various immune mediators, in which eicosanoid signals act as the ultimate downstream mediator. The chemical diversity of eicosanoids may operate to mediate various immune responses...
December 7, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29222408/brain-insulin-resistance-impairs-hippocampal-synaptic-plasticity-and-memory-by-increasing-glua1-palmitoylation-through-foxo3a
#5
Matteo Spinelli, Salvatore Fusco, Marco Mainardi, Federico Scala, Francesca Natale, Rosita Lapenta, Andrea Mattera, Marco Rinaudo, Domenica Donatella Li Puma, Cristian Ripoli, Alfonso Grassi, Marcello D'Ascenzo, Claudio Grassi
High-fat diet (HFD) and metabolic diseases cause detrimental effects on hippocampal synaptic plasticity, learning, and memory through molecular mechanisms still poorly understood. Here, we demonstrate that HFD increases palmitic acid deposition in the hippocampus and induces hippocampal insulin resistance leading to FoxO3a-mediated overexpression of the palmitoyltransferase zDHHC3. The excess of palmitic acid along with higher zDHHC3 levels causes hyper-palmitoylation of AMPA glutamate receptor subunit GluA1, hindering its activity-dependent trafficking to the plasma membrane...
December 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/29209828/regulation-of-immunometabolism-in-adipose-tissue
#6
REVIEW
Manju Kumari, Joerg Heeren, Ludger Scheja
Adipose tissue has emerged as a major player in driving obesity-related inflammatory response. In obesity, chronic infiltration of macrophages in adipose tissue mediates local and systemic inflammation and acts as a key contributor to insulin resistance. In the past few years, adipose tissue plasticity and remodeling capacity has been studied extensively to develop therapeutic targets to combat obesity and related metabolic dysfunction. Progress in understanding the potential of adipocytes and contribution of macrophages and other immune cells to control immunometabolism in disease state has provided us new potential intervention targets to explore such as the formation of heat-producing beige adipocytes in white adipose tissue and the polarization of macrophages from an inflammatory toward an anti-inflammatory phenotype...
December 5, 2017: Seminars in Immunopathology
https://www.readbyqxmd.com/read/29184538/circulating-irisin-is-reduced-in-male-patients-with-type-1-and-type-2-myotonic-dystrophies
#7
Elena Dozio, Elena Passeri, Rosanna Cardani, Stefano Benedini, Carmen Aresta, Rea Valaperta, Massimiliano Corsi Romanelli, Giovanni Meola, Valeria Sansone, Sabrina Corbetta
Context: Myotonic dystrophies (DM) are dominantly inherited muscle disorders characterized by myotonia, muscle weakness, and wasting. The reasons for sarcopenia in DMs are uncleared and multiple factors are involved. Irisin, a positive hormone regulator of muscle growth and bone, may play a role. Objectives: To investigate (1) circulating irisin in a series of DM1 and DM2 male patients compared with healthy controls and (2) the relationships between irisin and anthropometric, metabolic and hormonal parameters...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29169710/dysmetabolic-iron-overload-syndrome-dios
#8
Yves Deugnier, Édouard Bardou-Jacquet, Fabrice Lainé
Dysmetabolic iron overload syndrome (DIOS) corresponds to mild increase in both liver and body iron stores associated with various components of metabolic syndrome in the absence of any identifiable cause of iron excess. It is characterized by hyperferritinemia with normal or moderately increased transferrin saturation, one or several metabolic abnormalities (increased body mass index with android distribution of fat, elevated blood pressure, dyslipidaemia, abnormal glucose metabolism, steatohepatitis), and mild hepatic iron excess at magnetic resonance imaging or liver biopsy...
December 2017: La Presse Médicale
https://www.readbyqxmd.com/read/29168114/parathyroid-hormone-in-surgery-induced-weight-loss-no-glucometabolic-effects-but-potential-adaptive-response-to-skeletal-loading
#9
Valeria Guglielmi, Alfonso Bellia, Paolo Gentileschi, Mauro Lombardo, Monica D'Adamo, Davide Lauro, Paolo Sbraccia
PURPOSE: Increased parathyroid hormone (PTH) is commonly associated with obesity, and its role in the pathogenesis of obesity-related glucometabolic abnormalities is uncertain. We aimed to explore the relationships of PTH with glucose/insulin homeostasis parameters before and after bariatric surgery-induced weight loss, and whether they depend or not on 25-hydroxyvitamin D (25OHD) status. METHODS: We included 42 subjects (27 women, aged 40 ± 5 years, BMI 48...
November 22, 2017: Endocrine
https://www.readbyqxmd.com/read/29124679/fear-of-fat-and-restrained-eating-negative-body-talk-between-female-friends-as-a-moderator
#10
Chong Man Chow, Holly Ruhl, Cin Cin Tan, Lilian Ellis
PURPOSE: This study examined whether engagement in negative body talk would moderate the association between fear of fat and restrained eating among female friend dyads. METHODS: Female friends (N pairs = 130) were recruited from a Midwestern university in the United States. The dyadic data were examined with an Actor-Partner Interdependence Model (APIM). RESULTS: Results showed that women's fear of fat was significantly related to their own restrained eating behaviors...
November 9, 2017: Eating and Weight Disorders: EWD
https://www.readbyqxmd.com/read/29113558/neuronal-control-of-bone-remodeling
#11
Alexander Corr, James Smith, Paul Baldock
Although the brain is well established as a master regulator of homeostasis in peripheral tissues, central regulation of bone mass represents a novel and rapidly expanding field of study. This review examines the current understanding of central regulation of the skeleton, exploring several of the key pathways connecting brain to bone and their implications both in mice and the clinical setting. Our understanding of central bone regulation has largely progressed through examination of skeletal responses downstream of nutrient regulatory pathways in the hypothalamus...
January 1, 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/29080342/cross-talk-between-bile-acids-and-gastro-intestinal-and-thermogenic-clues-from-bariatric-surgery
#12
Gabriella Garruti, Agostino Di Ciaula, Helen H Wang, David Q-H Wang, Piero Portincasa
Obesity is rapidly increasing and has reached epidemic features worldwide. It´s linked to insulin resistance, systemic low-grade inflammation and common pathogenic pathways with a number of comorbidities (including cancer), leading to high mortality rates. Besides change of lifestyles (diet and physical exercise) and pharmacological therapy, bariatric surgery is able to rapidly improve several metabolic and morphologic features associated with excessive fat storage, and currently represents an in vivo model to study the pathogenic mechanisms underlying obesity and obesity-related complications...
October 28, 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/29074090/the-role-of-a-single-gene-encoding-the-single-von-willebrand-factor-c-domain-protein-svc-in-bumblebee-immunity-extends-beyond-antiviral-defense
#13
Haidong Wang, Guy Smagghe, Ivan Meeus
The Single von Willebrand factor C-domain proteins (SVCs) are a group of short proteins mainly found in arthropods. They are proposed to be responsive in relation to environmental challenges including the nutritional status, bacterial and viral infections. The SVC protein Vago acts as a cross-talk molecule between the small interfering RNA (siRNA) pathway and the Jak/STAT pathway upon viral infection in Drosophila melanogaster and Culex mosquito cells. Unlike flies and mosquitoes that possess diverse SVCs, most bee species only have one of which the function remains unclear...
October 23, 2017: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29067668/advanced-methods-to-study-the-cross-talk-between-fibro-adipogenic-progenitors-and-muscle-stem-cells
#14
Luca Tucciarone, Usue Etxaniz, Martina Sandoná, Silvia Consalvi, Pier Lorenzo Puri, Valentina Saccone
Functional interactions between muscle (satellite) stem cells-MuSCs-and other cellular components of their niche (the fibro-adipogenic progenitors-FAPs) coordinate regeneration of injured as well as diseased skeletal muscles. These interactions are largely mediated by secretory networks, whose integrity is critical to determine whether repair occurs by compensatory regeneration leading to formation of new contractile fibers, or by maladaptive formation of fibrotic scars and fat infiltration. Here we provide the description of methods for isolation of FAPs and MuSCs from muscles of wild type and dystrophic mice, and protocols of cocultures as well as MuSC's exposure to FAP- derived exosomes...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29040966/natural-product-celastrol-suppressed-macrophage-m1-polarization-against-inflammation-in-diet-induced-obese-mice-via-regulating-nrf2-ho-1-map-kinase-and-nf-%C3%AE%C2%BAb-pathways
#15
Dan Luo, Yumeng Guo, Yuanyuan Cheng, Jia Zhao, Yu Wang, Jianhui Rong
Macrophage polarization is implicated in the inflammation in obesity. The aim of the present study was to examine the anti-inflammatory activities of botanical triterpene celastrol against diet-induced obesity. We treated diet-induced obese C57BL/6N male mice with celastrol (5, 7.5 mg/kg/d) for 3 weeks, and investigated macrophage M1/M2 polarization in adipose and hepatic tissues. Celastrol reduced fat accumulation and ameliorated glucose tolerance and insulin sensitivity. Celastrol down-regulated the mRNA levels of macrophage M1 biomarkers (e...
October 16, 2017: Aging
https://www.readbyqxmd.com/read/29035888/nitric-oxide-mediates-insect-cellular-immunity-via-phospholipase-a2-activation
#16
Md Sadekuzzaman, David Stanley, Yonggyun Kim
After infection or invasion is recognized, biochemical mediators act in signaling insect immune functions. These include biogenic amines, insect cytokines, eicosanoids, and nitric oxide (NO). Treating insects or isolated hemocyte populations with different mediators often leads to similar results. Separate treatments with an insect cytokine, 2 biogenic amines, and an eicosanoid lead to a single result, hemocyte spreading, understood in terms of intracellular cross-talk among these signaling systems. This study focuses on the cross-talk between NO and eicosanoid signaling in our model insect, Spodoptera exigua...
October 17, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/29021781/cross-talk-between-adipose-tissue-and-placenta-in-obese-and-gestational-diabetes-mellitus-pregnancies-via-exosomes
#17
REVIEW
Nanthini Jayabalan, Soumyalekshmi Nair, Zarin Nuzhat, Gregory E Rice, Felipe A Zuñiga, Luis Sobrevia, Andrea Leiva, Carlos Sanhueza, Jaime Agustín Gutiérrez, Martha Lappas, Dilys Jane Freeman, Carlos Salomon
Obesity is an important public health issue worldwide, where it is commonly associated with the development of metabolic disorders, especially insulin resistance (IR). Maternal obesity is associated with an increased risk of pregnancy complications, especially gestational diabetes mellitus (GDM). Metabolism is a vital process for energy production and the maintenance of essential cellular functions. Excess energy storage is predominantly regulated by the adipose tissue. Primarily made up of adipocytes, adipose tissue acts as the body's major energy reservoir...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28988838/staff-food-related-behaviors-and-children-s-tastes-of-food-groups-during-lunch-at-child-care-in-oklahoma
#18
Katherine Anundson, Susan B Sisson, Michael Anderson, Diane Horm, Jill Soto, Leah Hoffman
BACKGROUND: Young children should consume a variety of nutrient-dense foods to support growth, while limiting added fat and sugar. A majority of children between the ages of 3 and 5 years attend child care in the United States, which makes this environment and the child-care staff influential at meals. OBJECTIVE: The aim was to determine the association between best-practice food-related behaviors and young children's tastes of fruit, vegetable, low-fat dairy, and high-fat/high-sugar foods at child care...
October 4, 2017: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/28928238/talk-1-channels-control-%C3%AE-cell-endoplasmic-reticulum-ca-2-homeostasis
#19
Nicholas C Vierra, Prasanna K Dadi, Sarah C Milian, Matthew T Dickerson, Kelli L Jordan, Patrick Gilon, David A Jacobson
Ca(2+) handling by the endoplasmic reticulum (ER) serves critical roles in controlling pancreatic β cell function and becomes perturbed during the pathogenesis of diabetes. ER Ca(2+) homeostasis is determined by ion movements across the ER membrane, including K(+) flux through K(+) channels. We demonstrated that K(+) flux through ER-localized TALK-1 channels facilitated Ca(2+) release from the ER in mouse and human β cells. We found that β cells from mice lacking TALK-1 exhibited reduced basal cytosolic Ca(2+) and increased ER Ca(2+) concentrations, suggesting reduced ER Ca(2+) leak...
September 19, 2017: Science Signaling
https://www.readbyqxmd.com/read/28886394/challenging-fat-talk-an-experimental-investigation-of-reactions-to-body-disparaging-conversations
#20
Suman Ambwani, Megan Baumgardner, Cai Guo, Lea Simms, Emily Abromowitz
Although "fat talk" is associated with increased eating disorder risk, the predictors of fat talk engagement and viable alternatives to these pervasive conversations remain unclear. The current experiment examined responses to fat talk versus feminist-oriented challenging fat talk scenarios. Undergraduate women (N=283) completed baseline questionnaires assessing body dissatisfaction, fat talk engagement, and positive impression management. One week later, they were randomized to view one of the two scenarios, followed by assessment of mood, fat talk engagement, social acceptability, and social likeability...
September 5, 2017: Body Image
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