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https://www.readbyqxmd.com/read/28929308/influence-of-obesity-on-experimental-periodontitis-in-rats-histopathological-histometric-and-immunohistochemical-study
#1
Elizangela Partata Zuza, Valdir Gouveia Garcia, Letícia Helena Theodoro, Edilson Ervolino, Luiz Fernando Veloso Favero, Mariéllen Longo, Fernando Salimon Ribeiro, Alex Tadeu Martins, Luís Carlos Spolidorio, José Antônio Sampaio Zuanon, Benedicto Egbert Corrêa de Toledo, Juliana Rico Pires
OBJECTIVES: This study assessed the influence of obesity on the progression of ligature-induced periodontitis in rats. MATERIALS AND METHODS: Forty-eight adult Wistar rats were randomly divided into two groups: the HL group (n = 24) was fed high-fat animal food to induce obesity, and the NL group (n = 24) was fed normolipidic animal food. Obesity was induced within a period of 120 days, and the induction of experimental periodontitis (EP) was subsequently performed for 30 days...
September 19, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28929278/effect-and-mechanisms-of-diabetes-resolution-according-to-the-range-of-gastric-resection-and-the-length-of-anastomosis-in-animal-models-implication-for-gastric-cancer-surgery-in-patients-with-diabetes-mellitus
#2
Yeon-Ju Huh, Young-Gil Son, Tae-Han Kim, Ji-Ho Park, Tae-Jung Oh, Boram Choi, Jimin Min, Young Min Cho, Han-Kwang Yang, Hyuk-Joon Lee
BACKGROUND: To examine the effect and mechanism of Roux-en-Y gastric bypass (RYGB) on the improvement of diabetes according to the length of anastomosis and the gastric pouch volume in an animal model. METHODS: Glucose intolerance was induced with a high-fat diet for 3 months in Sprague-Dawley rats. The animals were subjected to conventional RYGB (cRYGB; 5% gastric pouch with 15-cm Roux limb, 40-cm biliopancreatic limb; n = 9), short-limb RYGB (sRYGB; 5%, 8, 4 cm; n = 9), fundus-sparing RYGB (fRYGB; 30%, 8, 4 cm; n = 9), or sham operation (n = 9)...
September 19, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28928235/testosterone-protects-high-fat-low-carbohydrate-diet-induced-non-alcoholic-fatty-liver-disease-in-castrated-male-rats-mainly-via-modulating-er-stress
#3
Yue Jia, Jennifer Kuang Yee, Christina Wang, Liana Nikolaenko, Maruja Diaz-Arjonilla, Joshua N Cohen, Samuel W French, Peter Y Liu, YanHe Lue, Wai-Nang Paul Lee, Ronald S Swerdloff
We previously showed that testosterone (T) deficiency enhanced high-fat diet (HFD) induced hepatic steatosis in rats that was independent of insulin resistance, and that T replacement reduced hepatic macrovesicular fat accumulation and inflammation. The present report explores the mechanism of T-protective effects on HFD-induced steatohepatitis. Adult male rats were randomized into four treatment groups for 15 weeks (intact rats on regular chow diet or HFD, and castrated rats on HFD with/without T replacement)...
September 19, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28927908/the-impact-of-the-standard-american-diet-in-rats-effects-on-behavior-physiology-and-recovery-from-inflammatory-injury
#4
Stacie K Totsch, Tammie L Quinn, Larissa J Strath, Laura J McMeekin, Rita M Cowell, Barbara A Gower, Robert E Sorge
BACKGROUND AND AIMS: Obesity is a significant health concern in the Western world and the presence of comorbid conditions suggests an interaction. The overlapping distributions of chronic pain populations and obesity suggests that an interaction may exist. Poor quality diet (high carbohydrates, saturated fats, omega-6 polyunsaturated fatty acids) can lead to increased adiposity which can activate immune cells independent of the activating effect of the diet components themselves. This dual action can contribute to chronic inflammation that may alter susceptibility to chronic pain and prolong recovery from injury...
September 16, 2017: Scandinavian Journal of Pain
https://www.readbyqxmd.com/read/28923931/endothelial-insulin-receptors-differentially-control-insulin-signaling-kinetics-in-peripheral-tissues-and-brain-of-mice
#5
Masahiro Konishi, Masaji Sakaguchi, Samuel M Lockhart, Weikang Cai, Mengyao Ella Li, Erica P Homan, Christian Rask-Madsen, C Ronald Kahn
Insulin receptors (IRs) on endothelial cells may have a role in the regulation of transport of circulating insulin to its target tissues; however, how this impacts on insulin action in vivo is unclear. Using mice with endothelial-specific inactivation of the IR gene (EndoIRKO), we find that in response to systemic insulin stimulation, loss of endothelial IRs caused delayed onset of insulin signaling in skeletal muscle, brown fat, hypothalamus, hippocampus, and prefrontal cortex but not in liver or olfactory bulb...
September 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28923316/different-combinations-of-maternal-and-postnatal-diet-are-reflected-in-changes-of-hepatic-parenchyma-and-hepatic-tnf-alpha-expression-in-male-rat-offspring
#6
Željka Perić Kačarević, Anđela Grgić, Darija Šnajder, Nikola Bijelić, Tatjana Belovari, Olga Cvijanović, Valerija Blažičević, Radivoje Radić
Obesity is related to increased TNF-alpha production in different tissues. TNF-alpha is connected to mitochondrial dysfunction in the liver and also development of fatty infiltration of the liver. Also, postnatal change from normal to high-fat diet causes a significant increase in TNF-alpha serum levels. The aim of this research was to determine how maternal diet and switching male offspring to a different dietary regime after lactation influences rat liver. Ten female Sprague Dawley rats at nine weeks of age were randomly divided in two groups and fed either standard laboratory chow or high-fat diet during six weeks, and then mated with the same male subject...
September 15, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28923247/effects-of-plant-and-animal-based-high-fat-diets-on-lipid-storage-and-distribution-in-environmental-bacteria-colonized-gnotobiotic-mice
#7
Yi-Hsun Chen, Chien-Chao Chiu, Shao-Wen Hung, Ju-Yun Liu, Yu-Chih Wang, Qiang Lv, Cheng-Chih Hsu, Yi-Wen Huang, Wen-Ching Huang, Hsiao-Li Chuang, Ter-Hsin Chen
Different edible oils such as lard and soybean oil have been reported to interact with the gut microbiota, affecting host lipid metabolism. However, whether bacteria derived from the environment influence host lipid metabolism remains unclear. This study aimed to clarify the roles of environmental bacteria in host lipid storage and distribution with various edible oils. Gnotobiotic C57BL/6JNarl mice were inoculated with Lysinibacillus xylanilyticus and Paenibacillus azoreducens and then fed either a normal diet (LabDiet 5010, control group) or a diet containing 60% lard (L-group) or soybean oil (S-group) for 18 months...
September 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28923167/cyclic-bouts-of-extreme-bradycardia-counteract-the-high-metabolism-of-frugivorous-bats
#8
M Teague O'Mara, Martin Wikelski, Christian C Voigt, Andries Ter Maat, Henry S Pollock, Gary Burness, Lanna M Desantis, Dina Kn Dechmann
Active flight requires the ability to efficiently fuel bursts of costly locomotion while maximizing energy conservation during non-flying times. We took a multi-faceted approach to estimate how fruit-eating bats (Uroderma bilobatum) manage a high-energy lifestyle fueled primarily by fig juice. Miniaturized heart rate telemetry shows that they use a novel, cyclic, bradycardic state that reduces daily energetic expenditure by 10% and counteracts heart rates as high as 900 bpm during flight. Uroderma bilobatum support flight with some of the fastest metabolic incorporation rates and dynamic circulating cortisol in vertebrates...
September 19, 2017: ELife
https://www.readbyqxmd.com/read/28921743/exercise-training-dose-differentially-alters-muscle-and-heart-capillary-density-and-metabolic-functions-in-an-obese-rat-with-metabolic-syndrome
#9
Marcus Vinicius Machado, Aline Bomfim Vieira, Fabiana Gomes da Conceição, Alessandro Rodrigues Nascimento, Antonio Claudio Lucas da Nóbrega, Eduardo Tibirica
We evaluated the effect of frequency, duration and intensity of exercise training on metabolic parameters and structural capillary density in obese rats with metabolic syndrome (MS). Wistar-Kyoto rats were fed a either standard commercial diet (CON) or high-fat diet (HFD). Animals that received the HFD were randomly separated into either a sedentary (SED) group or 8 different exercise groups that varied by the frequency, duration and intensity of training. After 12 weeks of aerobic exercise training, body composition, aerobic capacity, hemodynamic variables, metabolic parameters and capillary density in the heart and skeletal muscle were evaluated...
September 17, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28921462/bifidobacterium-pseudocatenulatum-cect-7765-ameliorates-neuroendocrine-alterations-associated-with-an-exaggerated-stress-response-and-anhedonia-in-obese-mice
#10
Ana Agusti, A Moya-Pérez, I Campillo, S Montserrat-de la Paz, V Cerrudo, A Perez-Villalba, Yolanda Sanz
Obesity, besides being a problem of metabolic dysfunction, constitutes a risk factor for psychological disorders. Experimental models of diet-induced obesity have revealed that obese animals are prone to anxious and depressive-like behaviors. The present study aimed to evaluate whether Bifidobacterium pseudocatenulatum CECT 7765 could reverse the neurobehavioral consequences of obesity in a high-fat diet (HFD) fed mouse model via regulation of the gut-brain axis. Adult male wild-type C57BL-6 mice were fed a standard diet or HFD, supplemented with either placebo or the bifidobacterial strain for 13 weeks...
September 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28919976/impacts-of-prenatal-nutrition-on-animal-production-and-performance-a-focus-on-growth-and-metabolic-and-endocrine-function-in-sheep
#11
REVIEW
Prabhat Khanal, Mette Olaf Nielsen
The concept of foetal programming (FP) originated from human epidemiological studies, where foetal life nutrition was linked to health and disease status later in life. Since the proposal of this phenomenon, it has been evaluated in various animal models to gain further insights into the mechanisms underlying the foetal origins of health and disease in humans. In FP research, the sheep has been quite extensively used as a model for humans. In this paper we will review findings mainly from our Copenhagen sheep model, on the implications of late gestation malnutrition for growth, development, and metabolic and endocrine functions later in life, and discuss how these implications may depend on the diet fed to the animal in early postnatal life...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28919679/effects-of-intramammary-infusion-of-sage-salvia-officinalis-essential-oil-on-milk-somatic-cell-count-milk-composition-parameters-and-selected-hematology-and-serum-biochemical-parameters-in-awassi-sheep-with-subclinical-mastitis
#12
Myassar O Alekish, Zuhair B Ismail, Mofleh S Awawdeh, Shoroq Shatnawi
AIM: The aims of this study were to evaluate the effects of intramammary infusion of sage (Salvia officinalis) essential oil (EO) on milk somatic cell count (SCC), milk composition parameters and selected hematology and serum biochemical parameters in 20 Awassi ewes affected with subclinical mastitis. MATERIALS AND METHODS: The dried leaves of sage were used to extract the EO by hydrodistillation. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of sage EO against Staphylococcus aureus were determined by the broth dilution method...
August 2017: Veterinary World
https://www.readbyqxmd.com/read/28919028/resumption-of-ovarian-function-the-metabolic-profile-and-body-condition-in-brahman-cows-bos-indicus-is-not-affected-by-the-combination-of-calf-separation-and-progestogen-treatment
#13
Ramiro Díaz, Carlos S Galina, Ivette Rubio, Manuel Corro, José Luis Pablos, Ana Rodríguez, Agustín Orihuela
To evaluate the effect of different calf separation procedures after a progestogen treatment on the resumption of ovarian function, body condition and metabolic profile, 59 multiparous Brahman cows grazing on a mixed grass pasture were studied. No supplementation was given at any time. Body condition score (BCS), fat thickness (FAT) and blood metabolites were measured fortnightly from the beginning of the last trimester of gestation until 96days postpartum. At 30days postpartum all animals received a progesterone (P4)-releasing device (CIDR) which was withdrawn 9days later when prostaglandin F2α was applied...
September 1, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28918317/bithionol-residue-analysis-in-animal-derived-food-products-by-an-effective-and-rugged-extraction-method-coupled-with-liquid-chromatography-tandem-mass-spectrometry
#14
Weijia Zheng, Jin-A Park, A M Abd El-Aty, Seong-Kwan Kim, Sang-Hyun Cho, Jeong-Min Choi, Hee Yi, Soo-Min Cho, H A El-Banna, Jae-Han Shim, Byung-Joon Chang, Jing Wang, Jin-Suk Kim, Ho-Chul Shin
Herein, we developed a simple analytical procedure for the quantitation of bithionol residues in animal-derived food products such as porcine muscle, eggs, milk, eel, flatfish, and shrimp using a modified quick, easy, cheap, effective, rugged, and safe (QuEChERS) extraction method coupled with liquid chromatography-electrospray ionization tandem mass spectrometry (LC-ESI(+)/MS-MS). Samples were extracted with 0.1% solution of formic acid in acetonitrile and the extract was purified using a C18 sorbent. Separation was performed on a Waters XBridge™ C18 reversed-phase analytical column using 0...
August 31, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28917868/anti-hyperlipidemic-and-antioxidant-effects-of-alkali-extractable-mycelia-polysaccharides-by-pleurotus-eryngii-var-tuolensis
#15
Zhenzhen Ren, Juan Li, Nuo Xu, Jianjun Zhang, Xinling Song, Xiuxiu Wang, Zheng Gao, Huijuan Jing, Shangshang Li, Chen Zhang, Min Liu, Huajie Zhao, Le Jia
In this study, we noted that the Al-MPS from Pleurotus eryngii var. tuolensis provoked pharmacological effects on blood lipid profiles and oxidative stress. Animal studies demonstrated that Al-MPS showed potential effects on relieving hyperlipidemia and preventing oxidative stress, reflecting by decreasing the levels of serum enzyme activities (ALP, ALT and AST), restoring the activities of antioxidant enzymes (SOD, GSH-Px, CAT and T-AOC), down-regulating the MDA and LPO contents, as well as remitting the hepatic and cardiac tissues injury, respectively...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28917658/multiple-events-of-gene-manipulation-via-in-pouch-electroporation-in-a-marsupial-model-of-mammalian-forebrain-development
#16
Annalisa Paolino, Laura R Fenlon, Peter Kozulin, Linda J Richards, Rodrigo Suárez
BACKGROUND: The technique of in utero electroporation has been widely used in eutherians, such as mice and rats, to investigate brain development by selectively manipulating gene expression in specific neuronal populations. A major challenge, however, is that surgery is required to access the embryos, affecting animal survival and limiting the number of times it can be performed within the same litter. New method: Marsupials are born at an early stage of brain development as compared to eutherians...
September 13, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28917061/use-of-lipid-emulsion-therapy-in-local-anesthetic-overdose
#17
Ozgur Karcioglu
The use of intravenous lipid emulsion (ILE) therapy as antidote in systemic toxicity of certain agents has gained widespread support. There are increasing data suggesting use of ILE in reversing from local anesthetic-induced systemic toxicity severe, life-threatening cardiotoxicity, although findings are contradictory. Efficiency of ILE was demonstrated in animal studies in the treatment of severe impairment of cardiac functions, via a mechanism for trapping lipophilic drugs in an expanded plasma lipid compartment ("lipid sink")...
October 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28916541/a-proteomic-atlas-of-insulin-signalling-reveals-tissue-specific-mechanisms-of-longevity-assurance
#18
Luke S Tain, Robert Sehlke, Chirag Jain, Manopriya Chokkalingam, Nagarjuna Nagaraj, Paul Essers, Mark Rassner, Sebastian Grönke, Jenny Froelich, Christoph Dieterich, Matthias Mann, Nazif Alic, Andreas Beyer, Linda Partridge
Lowered activity of the insulin/IGF signalling (IIS) network can ameliorate the effects of ageing in laboratory animals and, possibly, humans. Although transcriptome remodelling in long-lived IIS mutants has been extensively documented, the causal mechanisms contributing to extended lifespan, particularly in specific tissues, remain unclear. We have characterized the proteomes of four key insulin-sensitive tissues in a long-lived Drosophila IIS mutant and control, and detected 44% of the predicted proteome (6,085 proteins)...
September 15, 2017: Molecular Systems Biology
https://www.readbyqxmd.com/read/28915389/choline-prevents-fetal-overgrowth-and-normalizes-placental-fatty-acid-and-glucose-metabolism-in-a-mouse-model-of-maternal-obesity
#19
Juha Nam, Esther Greenwald, Chauntelle Jack-Roberts, Tamara T Ajeeb, Olga V Malysheva, Marie A Caudill, Kathleen Axen, Anjana Saxena, Ekaterina Semernina, Khatia Nanobashvili, Xinyin Jiang
Maternal obesity increases placental transport of macronutrients, resulting in fetal overgrowth and obesity later in life. Choline participates in fatty acid metabolism, serves as a methyl donor and influences growth signaling, which may modify placental macronutrient homeostasis and affect fetal growth. Using a mouse model of maternal obesity, we assessed the effect of maternal choline supplementation on preventing fetal overgrowth and restoring placental macronutrient homeostasis. C57BL/6J mice were fed either a high-fat (HF, 60% kcal from fat) diet or a normal (NF, 10% kcal from fat) diet with a drinking supply of either 25 mM choline chloride or control purified water, respectively, beginning 4 weeks prior to mating until gestational day 12...
August 12, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28914170/the-investigation-of-the-effects-of-topiramate-on-the-hypothalamic-levels-of-fat-mass-obesity-associated-protein-and-neuropeptide-y-in-obese-female-rats
#20
Işınsu Alkan, Berrin Zuhal Altunkaynak, Gamze Altun, Erkan Erener
OBJECTIVE: The aim of the present study is to investigate the effects of topiramate on the fat mass/obesity-associated protein (FTO) and on the neuropeptide Y (NPY) level in the hypothalamus depending on the recently increased prevalence of obesity. METHOD: In this study, twenty-four female rats were divided into four equal groups: Non-obese control, obese control, non-obese topiramate, and obese topiramate. Obese groups were fed with a 40% high-fat diet. At the end of the 9th week, the drug treatment started and the subjects were treated with topiramate once a day for 6 weeks...
September 15, 2017: Nutritional Neuroscience
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