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Journal of Physiology and Biochemistry

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https://www.readbyqxmd.com/read/29019082/loss-of-the-nutrient-sensor-tas1r3-leads-to-reduced-bone-resorption
#1
Michael S Eaton, Nicholas Weinstein, Jordan B Newby, Maggie M Plattes, Hanna E Foster, Jon W Arthur, Taylor D Ward, Stephen R Shively, Ryann Shor, Justin Nathan, Hannah M Davis, Lilian I Plotkin, Eric M Wauson, Brian J Dewar, Aaron Broege, Jonathan W Lowery
The taste receptor type 1 (TAS1R) family of heterotrimeric G protein-coupled receptors participates in monitoring energy and nutrient status. TAS1R member 3 (TAS1R3) is a bi-functional protein that recognizes amino acids such as L-glycine and L-glutamate or sweet molecules such as sucrose and fructose when dimerized with TAS1R member 1 (TAS1R1) or TAS1R member 2 (TAS1R2), respectively. It was recently reported that deletion of TAS1R3 expression in Tas1R3 mutant mice leads to increased cortical bone mass but the underlying cellular mechanism leading to this phenotype remains unclear...
October 10, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28983875/erratum-to-volume-73-issue-3-of-journal-of-physiology-and-biochemistry
#2
(no author information available yet)
Volume 73 issue 3 was published with an incorrect cover date. Correct is August 2017. The Publisher apologizes for this mistake and all related inconveniences caused by this.
October 5, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28980208/calcitriol-concomitantly-enhances-insulin-sensitivity-and-alters-myocellular-lipid-partitioning-in-high-fat-treated-skeletal-muscle-cells
#3
Grace E Jefferson, David M Schnell, D Travis Thomas, Lance M Bollinger
Vitamin D reduces myocellular insulin resistance, but the effects of vitamin D on intramyocellular lipid (IMCL) partitioning are unknown. The purpose of this study was to understand how calcitriol, the active vitamin D metabolite, affects insulin sensitivity and lipid partitioning in skeletal muscle cells. C2C12 myotubes were treated with calcitriol (100 nM) or vehicle control for 96 h. Insulin-stimulated Akt phosphorylation (Thr 308) was determined by western blot. Intramyocellular triacylglycerol (IMTG), diacylglycerol (DAG), and ceramide content were measured by LC/MS...
October 4, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28971334/preventive-effect-of-oleate-on-palmitate-induced-insulin-resistance-in-skeletal-muscle-and-its-mechanism-of-action
#4
Hakam Alkhateeb, Esam Qnais
Insulin resistance in skeletal muscle is a feature associated with exposure to an excess of saturated fatty acids such as palmitate. Oleic acid has been shown to blunt palmitate-induced insulin resistance in muscle cells. However, there is no literature available regarding the effect of oleic acid on palmitate-induced insulin resistance in intact muscle. Therefore, this study investigated the effect of oleic acid on palmitate-induced insulin resistance in rat soleus muscle and its underlying mechanisms. For these purposes, oleic acid (1 mM) was administered for 12 h in the absence or presence of palmitate (2 mM)...
October 3, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28929453/effects-of-long-term-ingestion-of-white-tea-on-oxidation-produced-by-aging-and-acute-oxidative-damage-in-rats
#5
Cristóbal Espinosa Ruiz, Lorena Cabrera, José Ángel López-Jiménez, Salvador Zamora, Francisca Pérez-Llamas
The infusion tea extracted from the leaves of the plant Camellia sinensis can be used in the prevention of cancer, cardiovascular and neurodegenerative diseases, and aging, while adriamycin (ADR) is an anticancer drug that increases oxidative stress in cells. The present study evaluated the protective effect of the long-term consumption of white tea used at two different doses against the oxidative stress produced by aging and acute oxidation caused ADR treatment. At wearing, rats received distilled water (control), or 0...
September 19, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28921259/epigenetic-effects-of-the-pregnancy-mediterranean-diet-adherence-on-the-offspring-metabolic-syndrome-markers
#6
REVIEW
David Lorite Mingot, Eva Gesteiro, Sara Bastida, Francisco J Sánchez-Muniz
Metabolic syndrome (MS) has a multifactorial and not yet fully clarified origin. Insulin resistance is a key element that connects all the accepted components of MS (obesity, dyslipemia, high blood pressure, and hyperglycemia). There is strong evidence that epigenetic changes during fetal development are key factors in the development of MS. These changes are induced by maternal nutrition, among different factors, affecting the intrauterine environment. The Mediterranean diet has been shown to be a healthy eating pattern that protects against the development of MS in adults...
September 18, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28914426/resistance-training-status-modifies-inflammatory-response-to-explosive-and-hypertrophic-resistance-exercise-bouts
#7
Johanna K Ihalainen, Juha P Ahtiainen, Simon Walker, Gøran Paulsen, Harri Selänne, Mari Hämäläinen, Eeva Moilanen, Heikki Peltonen, Antti A Mero
The purpose of the present study was to examine the immediate and prolonged immune response in circulating cytokine and adipocytokine concentrations after two different resistance exercise bouts: hypertrophic (HYP1, 5 × 10, 80% of 1RM) and maximal explosive (POW1, 10 × 5, 60% of 1RM) resistance exercise bouts and how 12 weeks of resistance training (RT) modifies these responses (HYP2, POW2). Eight men completed the study. RE-induced interleukin-6 (IL-6), interleukin-1β (IL-1β), interleukin-1 receptor antagonist (IL-1ra), monocyte-chemoattractant protein-1 (MCP-1), leptin, resistin, and adiponectin were measured before (PRE) and immediately (POST0), 24 (POST24) and 48 (POST48) hours after RE bouts before and after RT...
September 15, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28905319/pi3k-inhibition-protects-mice-from-nafld-by-down-regulating-cmklr1-and-nlrp3-in-kupffer-cells
#8
Wenfeng Zhang, Yan Liu, Mingbing Wu, Xiwen Zhu, Tao Wang, Kun He, Peizhi Li, Xiaoling Wu
Inflammation induced by high-fat diet (HFD) is of critical importance in the development of hepatic steatosis. The role of chemerin in the progress of nonalcoholic fatty liver disease (NAFLD) remains controversial. Here, we have evaluated the effects and mechanism of chemerin on insulin sensitivity and inflammation. An inhibitor (wortmannin) and agonist (insulin-like growth factor 1 (IGF-1) of phosphatidyl inositol 3-kinase (PI3K) were applied to Kupffer cells (KCs) after treatment with a concentration gradient of chemerin in vitro...
September 13, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28895067/a-gc-ms-untargeted-metabolomics-analysis-in-the-plasma-and-liver-of-rats-lacking-dipeptidyl-peptidase-type-iv-enzyme-activity
#9
Antonio Murgia, Pierluigi Caboni, Erika Cadoni, Monica Serra, Fabio Marongiu, Ezio Laconi
This study was achieved with the aim to find metabolic changes between Fischer rats with different dipeptidyl peptidase-type 4 (DPPIV) expression. The DPPIV is an enzyme expressed in several tissues and is critically involved in the regulation of meal-related insulin secretion in healthy individuals. The metabolic consequences of chronic DPPIV inhibition were analyzed in a surrogate animal model of genetic enzyme deficiency. Hyphenated gas chromatography-mass spectrometry (GC-MS) and multivariate data analysis techniques were used to study the metabolic aqueous fraction profile of 18 plasma and liver samples in two syngeneic rat strains differing in DPPIV activity (DPPIV(+) vs...
September 11, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28875258/molecular-analysis-of-oxalate-induced-endoplasmic-reticulum-stress-mediated-apoptosis-in-the-pathogenesis-of-kidney-stone-disease
#10
Albert Abhishek, Shaly Benita, Monika Kumari, Divya Ganesan, Eldho Paul, Ponnusamy Sasikumar, Ayyavu Mahesh, Subramani Yuvaraj, Tharmarajan Ramprasath, Govindan Sadasivam Selvam
Oxalate, a non-essential end product of metabolism, causes hyperoxaluria and eventually calcium oxalate (CaOx) stone disease. Kidney cells exposed to oxalate stress results in generation of reactive oxygen species (ROS) and progression of stone formation. Perturbations in endoplasmic reticulum (ER) result in accumulation of misfolded proteins and Ca(2+) ions homeostasis imbalance and serve as a common pathway for various diseases, including kidney disorders. ER stress induces up-regulation of pro-survival protein glucose-regulated protein 78 (GRP78) and pro-apoptotic signaling protein C/EBP homologous protein (CHOP)...
September 5, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28819768/maternal-obesity-is-associated-with-gut-microbial-metabolic-potential-in-offspring-during-infancy
#11
Tomás Cerdó, Alicia Ruiz, Ruy Jáuregui, Hatim Azaryah, Francisco José Torres-Espínola, Luz García-Valdés, M Teresa Segura, Antonio Suárez, Cristina Campoy
Children born to obese mothers are at increased risk for obesity, but the mechanisms behind this association are not fully understood. Our study aimed to investigate differences in the functions encoded by the microbiome of infants at 18 months of age when the transition from early infant-feeding to solid family foods is established. To investigate the impact of maternal prepregnancy body mass index on infants' gut microbiome, faecal samples from infants born to normoweight (n = 21) and obese mothers (n = 18) were analysed by 16S rRNA gene sequencing and a functional-inference-based microbiome analysis...
August 17, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28815514/intraepithelial-lymphocyte-immunophenotype-a-useful-tool-in-the-diagnosis-of-celiac-disease
#12
Rebeca Saborido, Nazareth Martinón, Alexandra Regueiro, Vanesa Crujeiras, Pablo Eiras, Rosaura Leis
According to new ESPGHAN guidelines, gluten challenge is considered necessary when there is doubt about the initial diagnosis of celiac disease (CD). The main aim of this study was to quantify intraepithelial lymphocyte (IEL) immunophenotype on celiac patients on gluten-containing diet (GCD) compared to those on gluten-free diet (GFD). Another aim was to evaluate the clinical utility of IELs in the CD diagnosis, especially in selected patients on GFD where diagnostic uncertainty remains. IEL immunophenotype (TCRγδ and NK-like IELs) were studied by flow cytometry in 111 children with CD (81 children with CD on GCD and 30 celiac patients on GFD) and a control group (10 children)...
August 16, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28799126/hydration-status-drug-interactions-and-determinants-in-a-spanish-elderly-population-a-pilot-study
#13
A M Puga, T Partearroyo, G Varela-Moreiras
Proper hydration is essential to maintain optimal health and well-being at all stages of life, especially for the elderly. Side effects of certain drugs that affect hydration status may compromise the health of the ancients, who also constitute the most vulnerable group. No studies have been carried out, to our knowledge, at the intersection of drugs and hydration status. Our study aimed to evaluate the effects of chronic use of certain drugs (diuretics, corticoids and metformin) in the hydration status of the elderly...
August 10, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28795377/comparison-of-the-fatty-acid-profile-of-spanish-infant-formulas-and-galician-women-breast-milk
#14
Rocío Barreiro, Patricia Regal, Olga López-Racamonde, Alberto Cepeda, Cristina A Fente
The importance of dietary lipids during childhood is evident, as they are necessary for correct growth and development of the newborn. When breastfeeding is not possible, infant formulas are designed to mimic human milk as much as possible to fulfill infant's requirements. However, the composition of these dairy products is relatively constant, while human milk is not a uniform bio-fluid and changes according to the requirements of the baby. In this study, breast milk samples were donated by 24 Spanish mothers in different lactation stages and different infant formulas were purchased in supermarkets and pharmacies...
August 9, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28779456/food-patterns-and-nutritional-assessment-in-galician-university-students
#15
José J Porto-Arias, Tania Lorenzo, Alexandre Lamas, Patricia Regal, Alejandra Cardelle-Cobas, Alberto Cepeda
The access of the young people to the university marks a fundamental break in their lives that may also result in a substantial change in their dietary habits. The aim of this study was to characterize the food patterns, body composition and biochemical profiles of Galician university students from the University of Santiago de Compostela (Campus de Lugo). A total of 62 students participated in this survey. For each individual, anthropometric parameters, blood pressure, blood glucose and lipid profile were measured...
August 4, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28762182/diet-induced-hypercholesterolemia-alters-liver-glycosaminoglycans-and-associated-lipoprotein-receptors-in-rats
#16
Gangappa Kiran, Ummiti J S Prasada Rao, Paramahans V Salimath, Nandini D Chilkunda
Glycosaminoglycans (GAGs) play an important role in lipoprotein metabolism. In liver, it facilitates the uptake of remnants through receptor-independent endocytosis. However, changes in liver GAGs during diet-induced hypercholesterolemia with normal levels of fat feeding are unknown. Present paper highlights the effect of diet-induced hypercholesterolemia with normal levels (5%) of fat on liver GAGs and other associated lipoprotein receptors. Hypercholesterolemia was induced in rats by feeding diet supplemented with 0...
July 31, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28744831/25-hydroxyvitamin-d-levels-of-children-are-inversely-related-to-adiposity-assessed-by-body-mass-index
#17
Silvia Barja-Fernández, Concepción M Aguilera, Isabel Martínez-Silva, Rocío Vazquez, Mercedes Gil-Campos, Josune Olza, Juan Bedoya, Carmen Cadarso-Suárez, Ángel Gil, Luisa M Seoane, Rosaura Leis
Vitamin D deficiency is associated with wide range of pathologies. Some evidences have shown that low vitamin D circulating levels in children and adolescent are related to fat mass and obesity. The objectives of the present study were to characterize vitamin D status in children and adolescents and to determine if serum 25-hydroxyvitamin D (25(OH)D) concentration is related to adiposity assessed by body mass index (BMI). Serum 25(OH)D levels were measured by LIAISON method in 471 children and adolescents (2 to 18 years age) and analyzed according to gender, pubertal period, age, and BMI...
July 25, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28741242/the-weakening-effect-of-soluble-epoxide-hydrolase-inhibitor-auda-on-febrile-response-to-lipopolysaccharide-and-turpentine-in-rat
#18
Jakub Piotrowski, Tomasz Jędrzejewski, Małgorzata Pawlikowska, Agata Joanna Pacuła, Jacek Ścianowski, Wiesław Kozak
A still growing body of evidence suggests the importance of epoxyeicosatrienoic acids (EETs) in the regulation of inflammatory response; therefore, drugs that stabilize their levels by targeting the soluble epoxide hydrolase (sEH), an enzyme responsible for their metabolism, are currently under investigation. The effect of sEH inhibitors on molecular components of fever mechanism, i.e., on synthesis of pro-inflammatory cytokines or prostaglandins, has been repeatedly proven; however, the hypothesis that sEH inhibitors affect febrile response has never been tested...
July 24, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28730509/effect-of-a-2000-m-running-test-on-antioxidant-and-cytokine-response-in-plasma-and-circulating-cells
#19
Lucrecia Carrera-Quintanar, Lorena Funes, Miguel Sánchez-Martos, Pascual Martinez-Peinado, José M Sempere, Antoni Pons, Vicente Micol, Enrique Roche
Exercise intensity usually correlates with increased oxidative stress and enhanced cytokine production. However, it is unknown if all types of exercise that induce muscle damage can cause a parallel response in the oxidation balance and cytokine production. To this end, the effect of a 2000-m running test in a group of volunteers that regularly train in aerobic routines was studied. Different circulating parameters were measured, oxidative stress markers (protein carbonyls and malondialdehyde), antioxidant enzyme activity, and cytokine levels in plasma as well as in the main circulating cells of blood samples obtained in basal conditions and after test execution...
July 20, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28707280/multi-regulatory-network-of-ros-the-interconnection-of-ros-pgc-1-alpha-and-ampk-sirt1-during-exercise
#20
REVIEW
Anand Thirupathi, Claudio Teodoro de Souza
Transcriptional factors are easily susceptible to any stimuli, including exercise. Exercise can significantly influence PGC-1 α and AMPK-SIRT1 pathway, as it is involved in the regulation of energy metabolism and mitochondrial biogenesis. Exercise is a major energy deprivation process by which many of transcription factors get tuned positively. However, how transcription factors help to boost the antioxidant defense system at cellular level is elusive. It is well known that physical exercise can induce reactive oxygen species, but how these reactive oxygen species can help to regulate multiple transcription factors during exercise is an important area to be discussed yet...
July 14, 2017: Journal of Physiology and Biochemistry
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