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https://www.readbyqxmd.com/read/28431377/metabolic-regulation-and-the-anti-obesity-perspectives-of-human-brown-fat
#1
REVIEW
Camilla Scheele, Søren Nielsen
Activation of brown adipose tissue (BAT) in adult humans increase glucose and fatty acid clearance as well as resting metabolic rate, whereas a prolonged elevation of BAT activity improves insulin sensitivity. However, substantial reductions in body weight following BAT activation has not yet been shown in humans. This observation raise the possibility for feedback mechanisms in adult humans in terms of a brown fat-brain crosstalk, possibly mediated by batokines, factors produced by and secreted from brown fat...
April 11, 2017: Redox Biology
https://www.readbyqxmd.com/read/28431241/akt-pkb-signaling-navigating-the-network
#2
REVIEW
Brendan D Manning, Alex Toker
The Ser and Thr kinase AKT, also known as protein kinase B (PKB), was discovered 25 years ago and has been the focus of tens of thousands of studies in diverse fields of biology and medicine. There have been many advances in our knowledge of the upstream regulatory inputs into AKT, key multifunctional downstream signaling nodes (GSK3, FoxO, mTORC1), which greatly expand the functional repertoire of AKT, and the complex circuitry of this dynamically branching and looping signaling network that is ubiquitous to nearly every cell in our body...
April 20, 2017: Cell
https://www.readbyqxmd.com/read/28431214/interferon-%C3%AE-released-by-activated-cd8-t-lymphocytes-impairs-the-calcium-resorption-potential-of-osteoclasts-in-calcified-human-aortic-valves
#3
Edit Nagy, Yang Lei, Eduardo Martínez-Martínez, Simon C Body, Florian Schlotter, Michael Creager, Alexander Assmann, Kamal Khabbaz, Peter Libby, Göran K Hansson, Elena Aikawa
Calcium content in patients with calcific aortic valve disease (CAVD) correlates with the severity of stenosis. In CAVD, activated T lymphocytes localize with osteoclast regions; however, the functional consequences of this association remain unknown. We hypothesized that CD8(+) T cells modulate calcification in CAVD. Explanted CAVD valves (n = 52) dissected into noncalcified and calcified portions were subjected to mRNA extraction, real-time quantitative PCR, enzyme-linked immunosorbent assay, and immunohistochemical analyses...
April 18, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28431090/current-status-of-the-blue-butterfly-in-fukushima-research
#4
Joji M Otaki, Wataru Taira
Adverse biological impacts of the Fukushima nuclear accident have been revealed using the pale grass blue butterfly, Zizeeria maha, since 2012, which were often considered incompatible with the conventional understanding of radiation biology. This discrepancy likely originates from different system conditions and methodologies. In this article, we first respond to comments from the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) regarding our study; "technical errors" in unit usage and mathematical models noted by UNSCEAR are not errors but reflect our research philosophy not to introduce theoretical assumptions associated with unit conversion and mathematical fit...
April 18, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28431039/genomic-data-for-78-chickens-from-14-populations
#5
Diyan Li, Tiandong Che, Binlong Chen, Shilin Tian, Xuming Zhou, Guolong Zhang, Miao Li, Uma Gaur, Yan Li, Majing Luo, Long Zhang, Zhongxian Xu, Xiaoling Zhao, Huadong Yin, Yan Wang, Long Jin, Qianzi Tang, Huailiang Xu, Mingyao Yang, Rongjia Zhou, Ruiqiang Li, Qing Zhu, Mingzhou Li
Background: Since the domestication of the red jungle fowls ( Gallus gallus ) (dating back to ∼10,000 B.P.) in Asia, domestic chickens ( Gallus gallus domesticus ) have been subjected to the combined effects of natural selection and human-driven artificial selection; this has resulted in marked phenotypic diversity in a number of traits, including behavior, body composition, egg production and skin color. Population genomic variations through diversifying selection have not been fully investigated...
April 18, 2017: GigaScience
https://www.readbyqxmd.com/read/28430946/forgotten-fungi-the-gut-mycobiome-in-human-health-and-disease
#6
Chloe E Huseyin, Paul W O'Toole, Paul D Cotter, Pauline D Scanlan
The human body is home to a complex and diverse microbial ecosystem that plays a central role in host health. This includes a diversity of fungal species that is collectively referred to as our 'mycobiome'. Although research into the mycobiome is still in its infancy, its potential role in human disease is increasingly recognised. Here we review the existing literature available on the human mycobiota with an emphasis on the gut mycobiome, including how fungi interact with the human host and other microbes...
April 18, 2017: FEMS Microbiology Reviews
https://www.readbyqxmd.com/read/28430812/nacl-cotransporter-abundance-in-urinary-vesicles-is-increased-by-calcineurin-inhibitors-and-predicts-thiazide-sensitivity
#7
Omar A Z Tutakhel, Arthur D Moes, Marco A Valdez-Flores, Marleen L A Kortenoeven, Mathijs V D Vrie, Sabina Jeleń, Robert A Fenton, Robert Zietse, Joost G J Hoenderop, Ewout J Hoorn, Luuk Hilbrands, René J M Bindels
Animal studies have shown that the calcineurin inhibitors (CNIs) cyclosporine and tacrolimus can activate the thiazide-sensitive NaCl cotransporter (NCC). A common side effect of CNIs is hypertension. Renal salt transporters such as NCC are excreted in urinary extracellular vesicles (uEVs) after internalization into multivesicular bodies. Human studies indicate that CNIs also increase NCC abundance in uEVs, but results are conflicting and no relationship with NCC function has been shown. Therefore, we investigated the effects of CsA and Tac on the abundance of both total NCC (tNCC) and phosphorylated NCC at Thr60 phosphorylation site (pNCC) in uEVs, and assessed whether NCC abundance in uEVs predicts the blood pressure response to thiazide diuretics...
2017: PloS One
https://www.readbyqxmd.com/read/28430776/aminoazo-dye-protein-adduct-enhances-inhibitory-effect-on-digestibility-and-damages-to-gastro-duodenal-hepatic-axis
#8
Li-Yun Lin, Chiung-Chi Peng, Yeh Chen, Boa-Chan Huang, Chun Chao Chang, Robert Y Peng
4-Dimethylaminoazobenzene (DAB, methyl yellow, or butter yellow), a human carcinogen, has been banned for use in foods since 1988. In 2014, DAB adulteration in Tofu occurred in Taiwan. We hypothesize that DAB can form [DAB•SBP]adduct adduct with soybean protein (SBP) which could damage Gastro-Duodenal-Hepatic axis. Sprague-Dawley rats gavage fed [DAB•SBP]adduct adduct revealed severely reduced body weight and damaged duodenum, liver, hepatic mitochondria, and spleen. Hepatic levels of glutathione and ATP were severely reduced...
2017: PloS One
https://www.readbyqxmd.com/read/28430655/a-study-on-the-anti-tumor-mechanism-of-total-flavonoids-from-radix-tetrastigmae-against-additional-cell-line-based-on-cox-2-mediated-wnt-%C3%AE-catenin-signaling-pathway
#9
Li Qinglin, Xin Wenxiu, Zhong Like, Fangluo, Cao Gang, Huang Ping
This study is to explore the effect of total flavonoids from Radix Tetrastigmae (TF) against hepatic cancer and discuss the acting mechanism. Proliferation of HepG2 cells was promoted by PGE2 and Butaprost. Using AH6809 as the positive control, the inhibitory effect of TF on additional cell line was detected through a CCK-8 assay, the apoptosis rate was detected by flow cytometry, and the nuclear morphology of cells were observed by Hochest33258 staining. Then PCR was applied to determine the mRNA expression...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430139/the-metalloproteinase-adam28-promotes-metabolic-dysfunction-in-mice
#10
Lakshini Herat, Caroline Rudnicka, Yasunori Okada, Satsuki Mochizuki, Markus Schlaich, Vance Matthews
Obesity and diabetes are major causes of morbidity and mortality globally. The current study builds upon our previous association studies highlighting that A Disintegrin And Metalloproteinase 28 (ADAM28) appears to be implicated in the pathogenesis of obesity and type 2 diabetes in humans. Our novel study characterised the expression of ADAM28 in mice with the metabolic syndrome and used molecular inhibition approaches to investigate the functional role of ADAM28 in the pathogenesis of high fat diet-induced obesity...
April 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28429999/beneficial-effects-of-oral-supplementation-with-ovoderm-on-human-skin-physiology-two-pilot-studies
#11
Andrés Aguirre, Erena Gil-Quintana, Marisa Fenaux, Sandra Erdozain, Itziar Sarria
Collagens and hyaluronic acid have long been used in pharmaceuticals and food supplements for the improvement of skin elasticity and hydration. These compounds provide the building blocks of the skin. Ovoderm is an oral supplement obtained from eggshells that contains naturally occurring collagen and glycosaminoglycans, such as hyaluronic acid. We evaluated the efficacy of Ovoderm on skin biophysical parameters related to cutaneous aging such as elasticity, hydration, and pigmentation. Two pilot studies were run to assess the effect of daily oral supplementation with 300 mg Ovoderm on skin parameters...
April 21, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28429751/preclinical-study-of-raav2-strail-pharmaceutical-efficacy-biodistribution-and-safety-in-animals
#12
Q Ru, W Li, X Wang, S Zhang, L Chen, Y Zhang, Y Ge, Y Zu, Y Liu, D Zheng
The recombinant sTRAIL has been in clinical trial for various human malignancies. However, the half-life time of sTRAIL is very short, which might be an important factor influencing its clinical efficacy for cancer therapy. We previously reported the recombinant adeno-associated virus (AAV)-encoding sTRAIL95-281-mediated sTRAIL expression in vivo up to 8 months and suppressed tumor growth markedly in mouse xenografts. In the present study, we further evaluated the clinical potency for cancer gene therapy and the safety in mouse and non-human primates...
April 21, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28429683/biokinetics-of-yttrium-and-comparison-with-its-geochemical-twin-holmium
#13
Richard Wayne Leggett
The transition metal yttrium (Y, atomic number 39) is chemically similar to elements in the lanthanide family (atomic numbers 57-71) and is found with the lanthanides in rare earth ores. Yttrium and the lanthanide holmium are referred to as geochemical twins because they generally show little fractionation from metamorphic or weathering processes, due to their closely similar chemical properties and nearly identical ionic radii. Extensive measurements on rocks, soils, and meteorites indicate that the Y/Ho mass concentration ratio rarely falls far from the so-called chondritic or solar system ratio of ~26...
April 21, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/28429509/co2-permeability-and-carbonic-anhydrase-activity-of-rat-cardiomyocytes
#14
Mariela Arias-Hidalgo, Samer Al-Samir, Natalie Weber, Cornelia Geers-Knörr, Gerolf Gros, Volker Endeward
AIM: We determine here the CO2 permeability (PCO2 ) of plasma membranes of cardiomyocytes. These cells were chosen because heart possesses the highest rate of O2 -consumption/CO2 -production in the body. METHODS: Cardiomyocytes were isolated from rat hearts using the Langendorff technique. Cardiomyocyte suspensions exhibited a vitality of 2-14% and were studied by the previously described mass spectrometric (18) O-exchange-technique deriving PCO2 . We show by mass spectrometry and by carbonic anhydrase (CA)-staining that non-vital cardiomyocytes are free of CA and thus do not contribute to the mass spectrometric signal, which is determined exclusively by the fully functional vital cardiomyocytes...
April 20, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28429257/low-molecular-weight-components-of-the-metabolome-control-the-proliferative-activity-in-cellular-and-bacterial-cultures
#15
T Ya Vakhitov, N I Chalisova, S I Sitkin, T S Sall, O N Shalaeva, E V Demyanova, A S Morugina, A F Vinogradova, A V Petrov, A D Nozdrachev
The effects of blood metabolites and model cell culture exometabolites found in the human and animal blood metabolomes have been assessed. Specifically, the influence of carboxylic acids that are structural analogues of amino acids and the drug Aktoflor-C have been studied. Methods of organotypic culturing of rat tissues and Escherichia coli bacterial culturing have been used. It has been found that all the tested compounds either stimulate or inhibit cell proliferation in tissue cultures and proliferation in bacterial cultures...
January 2017: Doklady Biological Sciences: Proceedings of the Academy of Sciences of the USSR, Biological Sciences Sections
https://www.readbyqxmd.com/read/28429085/the-role-of-rna-alternative-splicing-in-regulating-cancer-metabolism
#16
REVIEW
Itamar Kozlovski, Zahava Siegfried, Adi Amar-Schwartz, Rotem Karni
Tumor cells alter their metabolism by a wide array of mechanisms to promote growth and proliferation. Dysregulated expression and/or somatic mutations of key components of the glycolytic pathway/TCA cycle as well as other metabolic pathways allow tumor cells to improve their ability to survive harsh conditions such as hypoxia and the presence of reactive oxygen species, as well as the ability to obtain nutrients to increase lipids, protein, and nucleic acids biogenesis. Approximately 95% of the human protein encoding genes undergo alternative splicing (AS), a regulated process of gene expression that greatly diversifies the proteome by creating multiple proteins from a single gene...
April 20, 2017: Human Genetics
https://www.readbyqxmd.com/read/28428779/application-of-%C3%AE-resorcylic-acid-as-potential-antimicrobial-feed-additive-to-reduce-campylobacter-colonization-in-broiler-chickens
#17
Basanta R Wagle, Abhinav Upadhyay, Komala Arsi, Sandip Shrestha, Kumar Venkitanarayanan, Annie M Donoghue, Dan J Donoghue
Campylobacter is one of the major foodborne pathogens that result in severe gastroenteritis in humans, primarily through consumption of contaminated poultry products. Chickens are the reservoir host of Campylobacter, where the pathogen colonizes the ceca, thereby leading to contamination of carcass during slaughter. A reduction in cecal colonization by Campylobacter would directly translate into reduced product contamination and risk of human infections. With increasing consumer demand for antibiotic free chickens, significant research is being conducted to discover natural, safe and economical antimicrobials that can effectively control Campylobacter colonization in birds...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28428736/simple-sugar-supplementation-abrogates-exercise-induced-increase-in-hepcidin-in-young-men
#18
Maja Tomczyk, Jakub Kortas, Damian Flis, Wojciech Skrobot, Rafal Camilleri, Jedrzej Antosiewicz
BACKGROUND: At present many young people experience too much body iron accumulation. The reason of this phenomenon is not clear. There is accumulating evidences that not proper diet and lack of exercise could be a main contributing factors. This investigation assessed the effects of a diet rich in simple sugars (glucose or fructose) on exercise-induced hepcidin which is hormone regulating iron metabolism. METHODS: A group of physically active young men completed an incremental exercise test before and after a 3-day diet supplemented with fructose (4 g/kg BM) or glucose (4 g/kg BM)...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28428704/lead-poisoning-due-to-herbal-medications
#19
Shailja Chambial, Pankaj Bhardwaj, Abbas Ali Mahdi, Praveen Sharma
Lead ranks as one of the most serious environmental poisons all over the world amongst toxic heavy metals with no known biological function useful for the human body. A case of lead toxicity due to consumption of herbal medicine is being discussed. The case presented with gastrointestinal complaints and history of intake of herbal medicines for diabetes control for past 8 months. The analysis of the powdered herbal medicine procured from ayurveda practitioner was found to have high content of lead responsible for the lead toxicity...
June 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28428567/novel-oral-anticoagulants-and-exodontia-the-evidence
#20
S Nathwani, C Wanis
Background Haemostasis is crucial for the success of oral surgical treatment as bleeding problems can cause complications both pre- and post-operatively. Patients on anticoagulant drugs present a challenge due to their increased risk of bleeding.Aims To review the evidence for the management of oral surgery patients on novel oral anticoagulant therapy.Methods A literature review was conducted in May 2016 of free-text and MESH searches (keywords: apixaban, dabigatran, rivaroxaban and dental extractions) in the Cochrane Library, PubMed and CINAHL...
April 21, 2017: British Dental Journal
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