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https://www.readbyqxmd.com/read/28225888/local-inhibition-of-nitrergic-activity-in-tenotomized-rats-accelerates-muscle-regeneration-by-increasing-fiber-area-and-decreasing-central-core-lesions
#1
A D Seabra, S A S Moraes, E J O Batista, T B Garcia, M C Souza, K R M Oliveira, A M Herculano
Muscular atrophy is a progressive degeneration characterized by muscular proteolysis, loss of mass and decrease in fiber area. Tendon rupture induces muscular atrophy due to an intrinsic functional connection. Local inhibition of nitric oxide synthase (NOS) by Nω-nitro-L-arginine methyl ester (L-NAME) accelerates tendon histological recovery and induces functional improvement. Here we evaluate the effects of such local nitrergic inhibition on the pattern of soleus muscle regeneration after tenotomy. Adult male Wistar rats (240 to 280 g) were divided into four experimental groups: control (n=4), tenotomized (n=6), vehicle (n=6), and L-NAME (n=6)...
February 20, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28225494/a-unique-case-of-inflammatory-fibroid-polyp-in-the-duodenum-of-a-female-adolescent-case-report-and-literature-review
#2
Mauricio Giusti Calderon, Valéria Campos Caivano, Sauro Bagnaresi, José Ozório de Oliveira Lira, Rodrigo Daminello Raimundo, Luiz Carlos de Abreu, João Antonio Correa
BACKGROUND: Inflammatory fibroid polyp (IFP) is a very rare benign condition in children that can occur throughout the gastrointestinal tract. It is characterized as a polypoid lesion originating in the submucosa, composed of connective tissue and eosinophilic infiltrate. It is most common in the stomach and in adults between the fifth and seventh decades of life. Its occurrence is unusual in the duodenum. CASE SUMMARY: One case of duodenal IFP was described and the literature is reviewed with emphasis on the clinical and pathological features of IFP in children...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28225305/limited-carbohydrate-refeeding-instruction-for-long-term-weight-maintenance-following-a-ketogenic-very-low-calorie-meal-plan
#3
J J Chang, J Bena, S Kannan, J Kim, B Burguera, S R Kashyap
OBJECTIVE: Weight loss maintenance following very-low-calorie meal plans is poorly studied. This report describes weight loss efficacy and predictors of weight loss maintenance of a ketogenic, very-low-calorie meal plan (protein-sparing modified fast, PSMF) in people with obesity. METHODS: 127 consecutive adults in the PSMF meal plan (27.2 ±19.5 weeks) and 48 adults on a conventional, hypocaloric meal plan (23.6 ±20.8 weeks) were retrospectively studied for percent weight change from baseline to end of intervention and at 6, 12, and 24 months post-intervention...
February 22, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28223291/ctrp7-deletion-attenuates-obesity-linked-glucose-intolerance-adipose-tissue-inflammation-and-hepatic-stress
#4
Pia S Petersen, Xia Lei, Risa M Wolf, Susana Rodriguez, Stefanie Y Tan, Hannah C Little, Michael A Schweitzer, Thomas H Magnuson, Kimberley E Steele, G William Wong
Chronic low-grade inflammation and cellular stress are important contributors to obesity-linked metabolic dysfunction. Here, we uncover an immune-metabolic role for C1q/TNF-related protein 7 (CTRP7), a secretory protein of the C1q family with previously unknown function. In obese humans, circulating CTRP7 levels were markedly elevated and positively correlated with BMI, glucose, insulin, insulin resistance index, hemoglobin A1c, and triglyceride levels. Expression of CTRP7 in liver was also significantly upregulated in obese humans and positively correlated with gluconeogenic genes...
February 21, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28217134/proteasome-activity-profiling-uncovers-alteration-of-catalytic-%C3%AE-2-and-%C3%AE-5-subunits-of-the-stress-induced-proteasome-during-salinity-stress-in-tomato-roots
#5
Judit Kovács, Péter Poór, Farnusch Kaschani, Balakumaran Chandrasekar, Tram N Hong, Johana C Misas-Villamil, Bo T Xin, Markus Kaiser, Herman S Overkleeft, Irma Tari, Renier A L van der Hoorn
The stress proteasome in the animal kingdom facilitates faster conversion of oxidized proteins during stress conditions by incorporating different catalytic β subunits. Plants deal with similar kind of stresses and also carry multiple paralogous genes encoding for each of the three catalytic β subunits. Here, we investigated the existence of stress proteasomes upon abiotic stress (salt stress) in tomato roots. In contrast to Arabidopsis thaliana, tomato has a simplified proteasome gene set with single genes encoding each β subunit except for two genes encoding β2...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28212445/long-term-effects-of-fetal-undernutrition-on-rat-heart-role-of-hypertension-and-oxidative-stress
#6
Pilar Rodríguez-Rodríguez, Angel L López de Pablo, Concha F García-Prieto, Beatriz Somoza, Begoña Quintana-Villamandos, José J Gómez de Diego, Perla Y Gutierrez-Arzapalo, David Ramiro-Cortijo, M Carmen González, Silvia M Arribas
BACKGROUND AND AIMS: Fetal undernutrition is a risk factor for heart disease in both genders, despite the protection of women against hypertension development. Using a rat model of maternal undernutrition (MUN) we aimed to assess possible sex differences in the development of cardiac alterations and the implication of hypertension and cardiac oxidative stress. METHODS: Male and female offspring from rats fed ad libitum (control) or with 50% of the normal daily intake during the second half of gestation (MUN) were used...
2017: PloS One
https://www.readbyqxmd.com/read/28209927/improved-health-span-and-lifespan-in-mtdna-mutator-mice-treated-with-the-mitochondrially-targeted-antioxidant-skq1
#7
Irina G Shabalina, Mikhail Yu Vyssokikh, Natalia Gibanova, Robert I Csikasz, Daniel Edgar, Anne Hallden-Waldemarson, Zinaida Rozhdestvenskaya, Lora E Bakeeva, Valeria B Vays, Antonina V Pustovidko, Maxim V Skulachev, Barbara Cannon, Vladimir P Skulachev, Jan Nedergaard
MtDNA mutator mice exhibit marked features of premature aging. We find that these mice treated from age of ≈100 days with the mitochondria-targeted antioxidant SkQ1 showed a delayed appearance of traits of aging such as kyphosis, alopecia, lowering of body temperature, body weight loss, as well as ameliorated heart, kidney and liver pathologies. These effects of SkQ1 are suggested to be related to an alleviation of the effects of an enhanced reactive oxygen species (ROS) level in mtDNA mutator mice: the increased mitochondrial ROS released due to mitochondrial mutations probably interact with polyunsaturated fatty acids in cardiolipin, releasing malondialdehyde and 4-hydroxynonenal that form protein adducts and thus diminishes mitochondrial functions...
February 15, 2017: Aging
https://www.readbyqxmd.com/read/28209772/maternal-smoke-exposure-decreases-mesenchymal-proliferation-and-modulates-rho-gtpase-dependent-actin-cytoskeletal-signaling-in-fetal-lungs
#8
Uchenna Unachukwu, Jordis Trischler, Monica Goldklang, Rui Xiao, Jeanine D'Armiento
The present study tested the hypothesis that maternal smoke exposure results in fetal lung growth retardation due to dysregulation in various signaling pathways, including the Wnt (wingless-related integration site)/β-catenin pathway. Pregnant female C57BL/6J mice were exposed to cigarette smoke (100-150 mg/m(3)) or room air, and offspring were humanely killed on 12.5, 14.5, 16.5, and 18.5 d post coitum (dpc). We assessed lung stereology with Cavalieri estimation; apoptosis with proliferating cell nuclear antigen, TUNEL, and caspase assays; and gene expression with quantitative PCR (qPCR) and RNA sequencing on lung epithelium and mesenchyme retrieved by laser capture microdissection...
February 16, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28209386/dietary-therapy-in-heart-failure-with-preserved-ejection-fraction-and-or-left-ventricular-diastolic-dysfunction-in-patients-with-metabolic-syndrome
#9
REVIEW
Helene von Bibra, Alexander Ströhle, Martin St John Sutton, Nicolai Worm
BACKGROUND: Heart failure is an ongoing epidemic of left ventricular (LV) dilatation and/or dysfunction due to the increasing prevalence of predisposing risk factors such as age, physical inactivity, (abdominal) obesity, and type-2-diabetes. Approximately half of these patients have diastolic heart failure (HFpEF). The prognosis of HFpEF is comparable to that of systolic heart failure, but without any known effective treatment. DIASTOLIC DYSFUNCTION: A biomathematically corrected diagnostic approach is presented that quantifies diastolic dysfunction via the predominant age dependency of LV diastolic function and unmasks (metabolic) risk factors, that are independent of age and, therefore, potential targets for therapy...
January 5, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28207834/a-cyclin-dependent-kinase-inhibitor-dinaciclib-in-preclinical-treatment-models-of-thyroid-cancer
#10
Shu-Fu Lin, Jen-Der Lin, Chuen Hsueh, Ting-Chao Chou, Richard J Wong
BACKGROUND: We explored the therapeutic effects of dinaciclib, a cyclin-dependent kinase (CDK) inhibitor, in the treatment of thyroid cancer. MATERIALS AND METHODS: Seven cell lines originating from three pathologic types of thyroid cancer (papillary, follicular and anaplastic) were studied. The cytotoxicity of dinaciclib was measured using a lactate dehydrogenase assay. The expression of proteins associated with cell cycle and apoptosis was assessed using Western blot analysis and immunofluorescence microscopy...
2017: PloS One
https://www.readbyqxmd.com/read/28197827/phloretin-prevents-high-fat-diet-induced-obesity-and-improves-metabolic-homeostasis
#11
Sary Alsanea, Mingming Gao, Dexi Liu
Reactive oxygen species generated as a by-product in metabolism play a central role in the development of obesity and obesity-related metabolic complications. The objective of the current study is to explore the possibility to block obesity and improve metabolic homeostasis via phloretin, a natural antioxidant product from apple tree leaves and Manchurian apricot. Both preventive and therapeutic activities of phloretin were assessed using a high-fat diet-induced obesity mouse model. Phloretin was injected intraperitoneally twice weekly into regular and obese mice fed a high-fat diet...
February 14, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28196866/sglt2-expression-is-increased-in-human-diabetic-nephropathy-sglt2-inhibition-decreases-renal-lipid-accumulation-inflammation-and-the-development-of-nephropathy-in-diabetic-mice
#12
Xiaoxin X Wang, Jonathan Levi, Yuhuan Luo, Komuraiah Myakala, Michal Herman-Edelstein, Liru Qiu, Dong Wang, Yingqiong Peng, Almut Grenz, Scott Lucia, Evgenia Dobrinskikh, Vivette D D'Agati, Hermann Koepsell, Jeffrey B Kopp, Avi Rosenberg, Moshe Levi
There is very limited human renal sodium gradient dependent glucose transporter protein SGLT2 mRNA and protein expression data reported in the literature. Aim 1 of this study was to determine SGLT2 mRNA and protein levels in human and animal models of diabetic nephropathy. We have found that the expression of SGLT2 mRNA and protein is increased in renal biopsies from human subjects with diabetic nephropathy. This is in contrast to db-db mice which had no changes in renal SGLT-2 protein expression. Furthermore, the effect of SGLT2 inhibition on renal lipid content and inflammation is not known...
February 14, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28192749/ascorbic-acid-ameliorates-behavioural-deficits-and-neuropathological-alterations-in-rat-model-of-alzheimer-s-disease
#13
Olayemi Joseph Olajide, Emmanuel Olusola Yawson, Ismail Temitayo Gbadamosi, Tolulope Timothy Arogundade, Ezra Lambe, Kosisochukwu Obasi, Ismail Tayo Lawal, Abdulmumin Ibrahim, Kehinde Yomi Ogunrinola
Exploring the links between neural pathobiology and behavioural deficits in Alzheimer's disease (AD), and investigating substances with known therapeutic advantages over subcellular mechanisms underlying these dysfunctions could advance the development of potent therapeutic molecules for AD treatment. Here we investigated the efficacy of ascorbic acid (AA) in reversing aluminium chloride (AlCl3)-induced behavioural deficits and neurotoxic cascades within prefrontal cortex (PFC) and hippocampus of rats. A group of rats administered oral AlCl3 (100mg/kg) daily for 15days showed degenerative changes characterised by significant weight loss, reduced exploratory/working memory, frontal-dependent motor deficits, cognitive decline, memory dysfunction and anxiety during behavioural assessments compared to control...
February 6, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28192730/inducible-turnover-of-optineurin-regulates-t-cell-activation
#14
Angela Montecalvo, Simon C Watkins, Jordan Orange, Lawrence P Kane
Optineurin (Optn) is an adaptor protein with homology to NF-κB essential modulator (NEMO), the regulatory subunit of the IκB kinase (IKK) complex. Dysregulation of Optn has been linked to neurodegenerative, autoimmune and bone diseases. Optn shares a high degree of homology with NEMO, but is not part of the same high-molecular weight complex containing IKKα and IKKβ. Despite its homology with NEMO and the fact that it has been the subject of extensive study in several cell types, there are no published studies addressing the role of Optn during T cell activation...
February 10, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28188640/rennet-induced-coagulation-of-raw-and-heated-camel-and-cow-milk-gels-determined-by-instrumental-techniques-effects-of-added-calcium-and-phosphate
#15
Romdhane Karoui, Mohammad Kamal
BACKGROUND: The potentiality of the front-face fluorescence spectroscopy and rheological measurements combined with chemometric tools to characterize the structure evolution during coagulation of raw and preheated camel and cow milk at 50 and 70 °C with/without added calcium and phosphate was evaluated. Tryptophan and vitamin A fluorescence spectra were collected during the gelation of milk at 0, 10, 20, 30, 40, and 45 min after the addition of rennet-induced coagulation. In parallel, the storage modulus (G'), loss modulus (G") and tan delta (tan δ) were determined using low amplitude oscillation shear analysis...
February 11, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28188143/statement-of-retraction-a-central-role-for-neuronal-amp-activated-protein-kinase-ampk-and-mammalian-target-of-rapamycin-mtor-in-high-protein-diet-induced-weight-loss-diabetes-2008-57-594-605-doi-10-2337-db07-0573
#16
Eduardo R Ropelle, José R Pauli, Maria Fernanda A Fernandes, Silvana A Rocco, Rodrigo M Marin, Joseane Morari, Kellen K Souza, Marília M Dias, Maria C Gomes-Marcondes, José A R Gontijo, Kleber G Franchini, Lício A Velloso, Mario J A Saad, José B C Carvalheira
No abstract text is available yet for this article.
February 10, 2017: Diabetes
https://www.readbyqxmd.com/read/28185933/binding-of-%C3%AE-carrageenan-a-food-additive-to-almond-cystatin-an-insight-involving-spectroscopic-and-thermodynamic-approach
#17
Azad Alam Siddiqui, Anna Feroz, Peerzada Shariq Shaheen Khaki, Bilqees Bano
Carrageenan is a high molecular weight linear sulphated polysaccharide, primarily used in food industry as gelling, thickening, and stabilizing agent. Almond milk prepared from almonds is low in fat, but high in antioxidants, energy, proteins, lipids and fibre. Purified almond cystatin was incubated with increasing concentrations of carrageenan at 25°C for different time interval and significant loss in inhibitory activity was observed. Interaction between carrageenan and cystatin resulted in complex formation as depicted by the decrease in fluorescence intensity with increase in the concentration of carrageenan...
February 7, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28185902/lung-remodeling-in-aging-surfactant-protein-d-deficient-mice
#18
Jan Philipp Schneider, Martina Arkenau, Lars Knudsen, Dirk Wedekind, Matthias Ochs
Pulmonary surfactant, a mixture of lipids and proteins at the air-liquid interface of alveoli, prevents the lungs from collapsing due to surface tension. One constituent is surfactant-associated protein-D (SP-D), a protein involved in surfactant homeostasis and innate immunity. Mice deficient in SP-D (SP-D (-/-)) have been described as developing a characteristic phenotype which affects the surfactant system (including changes in the intra-cellular and intra-alveolar surfactant pool, alveolar epithelial type II cells and alveolar macrophages), lung architecture and its inflammatory state (development of an emphysema-like pathology, inflammatory cell infiltration)...
February 6, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28185299/incremental-hemodialysis-a-european-perspective
#19
Kamonwan Tangvoraphonkchai, Andrew Davenport
Most patients initiating hemodialysis have residual renal function (RRF). Whereas RRF is monitored prior to commencing hemodialysis, once dialysis is started most centres simply rely on dialyzer urea clearance to determine adequate uremic toxin clearance and disregard the effect of RRF. However sustaining RRF is important for the dialysis patient, as RRF reduces inter-dialytic weight gains, increases middle molecule and protein bound toxin clearances and is associated with better quality of life assessments...
February 9, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28184001/igfbp-4-regulates-adult-skeletal-growth-in-a-sex-specific-manner
#20
David E Maridas, Victoria E DeMambro, Phuong T Le, Subburaman Mohan, Cliff Rosen
Insulin-like growth factor-1 (IGF-1) and its binding proteins are critical mediators of skeletal growth. Insulin-like Growth Factor Binding Protein 4 (IGFBP-4) is highly expressed in osteoblasts and inhibits IGF-1 actions in vitro. Yet, in vivo studies suggest that it could potentiate IGF-1 and IGF-2 actions. In this study, we hypothesized that IGFBP-4 might potentiate the actions of IGF-1 on the skeleton. To test this, we comprehensively studied 8 and 16-week-old Igfbp4-/- mice. Both male and female adult Igfbp4-/- mice had marked growth retardation with reductions in body weight, body and femur lengths, fat proportion and lean mass at 8 and 16 weeks...
February 9, 2017: Journal of Endocrinology
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