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https://www.readbyqxmd.com/read/29346768/activation-of-ampk-regulated-crh-neurons-in-the-pvh-is-sufficient-and-necessary-to-induce-dietary-preference-for-carbohydrate-over-fat
#1
Shiki Okamoto, Tatsuya Sato, Michihiro Tateyama, Haruaki Kageyama, Yuko Maejima, Masanori Nakata, Satoshi Hirako, Takashi Matsuo, Sanda Kyaw, Tetsuya Shiuchi, Chitoku Toda, Udval Sedbazar, Kumiko Saito, Nur Farehan Asgar, Boyang Zhang, Shigefumi Yokota, Kenta Kobayashi, Fabienne Foufelle, Pascal Ferré, Masamitsu Nakazato, Hiroaki Masuzaki, Seiji Shioda, Toshihiko Yada, Barbara B Kahn, Yasuhiko Minokoshi
Food selection is essential for metabolic homeostasis and is influenced by nutritional state, food palatability, and social factors such as stress. However, the mechanism responsible for selection between a high-carbohydrate diet (HCD) and a high-fat diet (HFD) remains unknown. Here, we show that activation of a subset of corticotropin-releasing hormone (CRH)-positive neurons in the rostral region of the paraventricular hypothalamus (PVH) induces selection of an HCD over an HFD in mice during refeeding after fasting, resulting in a rapid recovery from the change in ketone metabolism...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29345567/proteomic-analysis-of-vernalization-responsive-proteins-in-winter-wheat-jing841
#2
Yalan Feng, Beibei Kong, Jun Zhang, Xianni Chen, Jiale Yuan, Xingwang Tang, Chao Ma
Vernalization is one of the pivotal ways for plants to flower. As one of the major cereal crops, wheat is widely planted in the world. In the present study, we applied two-dimensional gel electrophoresis (2-DE) and matrix-assisted laser desorption/ionization time-of-flight/time-of-flight mass spectrometry (MALDI-TOF/TOF MS) to analyze the changes in protein expression profiles in responding to vernalization in leaves of wheat seedling before (0d) and after (30d) of vernalization. The results indicated that among the 68 differentially expressed proteins that were successfully identified under vernalization, 36 were up-regulated whereas 32 were down-regulated at 0 d, respectively...
January 17, 2018: Protein and Peptide Letters
https://www.readbyqxmd.com/read/29345346/galectin-3-type-c-self-association-on-neutrophil-surfaces-the-carbohydrate-recognition-domain-regulates-cell-function
#3
Martina Sundqvist, Amanda Welin, Jonas Elmwall, Veronica Osla, Ulf J Nilsson, Hakon Leffler, Johan Bylund, Anna Karlsson
Galectin-3 is an endogenous β-galactoside-binding lectin comprising a carbohydrate recognition domain (CRD) linked to a collagen-like N-domain. Both domains are required for galectin-3 to induce cellular effects; a C-terminal fragment of galectin-3, galectin-3C, containing the CRD but lacking the N-domain, binds cell surface glycoconjugates but does not induce cellular effects since cross-linking promoted by the N-domain is thought to be required. Instead, galectin-3C is proposed to antagonize the effects of galectin-3 by competing for binding sites...
January 10, 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29345166/effects-of-coffee-components-on-muscle-glycogen-recovery-a-systematic-review
#4
Laís Monteiro Rodrigues Loureiro, Caio Eduardo Gonçalves Reis, Teresa Helena Macedo da Costa
Coffee is one of the most consumed beverages in the world and it can improve insulin sensitivity, stimulating glucose uptake in skeletal muscle when adequate carbohydrate intake is observed. The aim of this review is to analyze the effects of coffee and coffee components on muscle glycogen metabolism. A literature search was conducted according to PRISMA and seven studies were included. They explored the effects of coffee components on various substances and signaling proteins. In one of the studies with humans, caffeine was shown to increase glucose levels, Ca2+/calmodulin-dependent protein kinase (CaMK) phosphorylation, glycogen resynthesis rates and glycogen accumulation after exercise...
January 18, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29344835/genetic-evidence-for-the-role-of-a-rice-vacuolar-invertase-as-a-molecular-sink-strength-determinant
#5
Shamitha Rao Morey, Tatsuro Hirose, Yoichi Hashida, Akio Miyao, Hirohiko Hirochika, Ryu Ohsugi, Junko Yamagishi, Naohiro Aoki
BACKGROUND: Rice is a major crop feeding the majority of the global population, and increasing its sink strength is one of the modes to alleviate the declining availability of food for the rapidly growing world population. We demonstrate a role for an important rice vacuolar invertase isoform, OsINV3, in sink strength determination. RESULTS: OsINV3 mutants showed shorter panicles with lighter and smaller grains, owing to a smaller cell size on the outer and inner surfaces of the palea and lemma as observed by scanning electron microscopy...
January 17, 2018: Rice
https://www.readbyqxmd.com/read/29344829/rapid-acting-and-regular-insulin-are-equal-for-high-fat-protein-meal-in-individuals-with-type-1-diabetes-treated-with-multiple-daily-injections
#6
Karolina Jabłońska, Piotr Molęda, Krzysztof Safranow, Lilianna Majkowska
INTRODUCTION: The fat and protein content can impact late postprandial glycemia; therefore, prolonged insulin boluses for high-fat/-protein meals are recommended for patients with type 1 diabetes on insulin pump therapy. It is not clear how to translate these findings to multiple daily injection (MDI) therapy. We hypothesized that regular insulin with a slower onset and a longer duration of action might be advantageous for such meals. METHODS: Twenty-five patients with well-controlled type 1 diabetes (mean HbA1c 6...
January 17, 2018: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/29344292/galectin-3-activation-and-inhibition-in-heart-failure-and-cardiovascular-disease-an-update
#7
REVIEW
Navin Suthahar, Wouter C Meijers, Herman H W Silljé, Jennifer E Ho, Fu-Tong Liu, Rudolf A de Boer
Galectin-3 is a versatile protein orchestrating several physiological and pathophysiological processes in the human body. In the last decade, considerable interest in galectin-3 has emerged because of its potential role as a biotarget. Galectin-3 is differentially expressed depending on the tissue type, however its expression can be induced under conditions of tissue injury or stress. Galectin-3 overexpression and secretion is associated with several diseases and is extensively studied in the context of fibrosis, heart failure, atherosclerosis and diabetes mellitus...
2018: Theranostics
https://www.readbyqxmd.com/read/29344201/elevation-of-serum-cea-and-ca15-3-levels-during-antitumor-therapy-predicts-poor-therapeutic-response-in-advanced-breast-cancer-patients
#8
Yue Yang, Huijuan Zhang, Mingyan Zhang, Qingwei Meng, Li Cai, Qingyuan Zhang
The aim of the present study was to assess the correlation between therapeutic response and carcinoembryonic antigen (CEA) and carbohydrate antigen 15-3 (CA15-3) levels in advanced breast cancer patients with non-assessable lesions or stable disease (SD) according to the Response Evaluation Criteria in Solid Tumors. A total of 232 female patients with recurrent tumors following radical mastectomy were recruited, including 76 patients with non-assessable lesions and 60 patients with SD. The correlation between CEA and CA15-3 changes, progression-free survival (PFS) and therapeutic response were analyzed in the non-assessable and SD patient groups...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344008/understanding-the-factors-that-effect-maximal-fat-oxidation
#9
REVIEW
Troy Purdom, Len Kravitz, Karol Dokladny, Christine Mermier
Lipids as a fuel source for energy supply during submaximal exercise originate from subcutaneous adipose tissue derived fatty acids (FA), intramuscular triacylglycerides (IMTG), cholesterol and dietary fat. These sources of fat contribute to fatty acid oxidation (FAox) in various ways. The regulation and utilization of FAs in a maximal capacity occur primarily at exercise intensities between 45 and 65% VO2max, is known as maximal fat oxidation (MFO), and is measured in g/min. Fatty acid oxidation occurs during submaximal exercise intensities, but is also complimentary to carbohydrate oxidation (CHOox)...
2018: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/29343868/galectin-13-a-different-prototype-galectin-does-not-bind-%C3%AE-galacto-sides-and-forms-dimers-via-intermolecular-disulfide-bridges-between-cys-136-and-cys-138
#10
Jiyong Su, Yue Wang, Yunlong Si, Jin Gao, Chenyang Song, Linlin Cui, Runjie Wu, Guihua Tai, Yifa Zhou
During pregnancy, placental protein-13 (galectin-13) is highly expressed in the placenta and fetal tissue, and less so in maternal serum that is related to pre-eclampsia. To understand galectin-13 function at the molecular level, we solved its crystal structure and discovered that its dimer is stabilized by two disulfide bridges between Cys136 and Cys138 and six hydrogen bonds involving Val135, Val137, and Gln139. Native PAGE and gel filtration demonstrate that this is not a crystallization artifact because dimers also form in solution...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343451/biochemical-characterization-of-halophilic-alkalithermophilic-amylopullulanase-puld7-and-truncated-amylopullulanases-puld7%C3%AE-n-and-puld7%C3%AE-c
#11
Noha M Mesbah, Juergen Wiegel
A pullulanase, PulD7, was identified in the genome of the halophilic, alkalithermophilic isolate Alkalilimnicola sp. NM-DCM-1. PulD7 is 701 amino acids large with a carbohydrate binding module (CBM) 48 at the N-terminal. The full length PulD7 and N- and C-terminal truncated versions were cloned, heterologously expressed and functionally characterized. PulD7 displayed maximal activity at 55 °C, pH 9.5 and 2 M NaCl. PulD7 had good thermal stability, with a half-life of 693 min at 50 °C. PulD7 is an amylopullulanase, hydrolyzing both α‑1,4‑ and α‑1,6‑glycosidic bonds in soluble starch and pullulan, respectively...
January 14, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29342865/acute-post-prandial-cognitive-effects-of-brown-seaweed-extract-in-humans
#12
Crystal F Haskell-Ramsay, Philippa A Jackson, Fiona L Dodd, Joanne S Forster, Jocelyn Bérubé, Carey Levinton, David O Kennedy
(Poly)phenols and, specifically, phlorotannins present in brown seaweeds have previously been shown to inhibit α-amylase and α-glucosidase, key enzymes involved in the breakdown and intestinal absorption of carbohydrates. Related to this are observations of modulation of post-prandial glycemic response in mice and increased insulin sensitivity in humans when supplemented with seaweed extract. However, no studies to date have explored the effect of seaweed extract on cognition. The current randomized, placebo-controlled, double-blind, parallel groups study examined the impact of a brown seaweed extract on cognitive function post-prandially in 60 healthy adults (N = 30 per group)...
January 13, 2018: Nutrients
https://www.readbyqxmd.com/read/29342258/insulin-and-estrogen-independently-and-differentially-reduce-macronutrient-intake-in-healthy-men
#13
Rosemarie Krug, Linda Mohwinkel, Bernhard Drotleff, Jan Born, Manfred Hallschmid
Context: Insulin administration to the central nervous system inhibits food intake, but this effect has been found to be less pronounced in female compared to male organisms. This sex-specific pattern has been suggested to arise from a modulating influence of estrogen signaling on the insulin effect. Objective: We assessed in healthy young men whether pre-treatment with transdermal estradiol interacts with the hypophagic effect of central nervous insulin administration via the intranasal pathway...
January 12, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29341923/purification-chitooligosaccharide-binding-properties-and-thermal-stability-of-cia24-a-new-pp2-like-phloem-exudate-lectin-from-ivy-gourd-coccinia-indica
#14
Kishore Babu Bobbili, Debparna Datta, Saradamoni Mondal, Sirilatha Polepalli, Michael Mormann, Musti J Swamy
PP2-like chitin binding phloem exudate lectins, abundant in the sieve tube of cucurbits, have been implicated to play key roles in wound sealing and antipathogenic responses of the plant. Here we report the affinity purification, macromolecular characterization and carbohydrate binding properties of a new chitooligosaccharide-specific lectin from the phloem exudate of ivy gourds (Coccinia indica). The protein, CIA24, has a subunit mass of 24 kDa. Partial sequence analysis indicated that CIA24 exhibits high homology with CIA17 and other Cucurbitaceae PP2 proteins whereas CD spectroscopic studies suggested that β-sheets constitute the predominant secondary structure...
January 13, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29341856/kix-domain-of-atmed15a-a-mediator-subunit-of-arabidopsis-is-required-for-its-interaction-with-different-proteins
#15
Vinay Kumar, Mohd Waseem, Nidhi Dwivedi, Sourobh Maji, Angad Kumar, Jitendra K Thakur
Med15 is an important subunit of Mediator tail module and is characterized by a KIX domain present in the amino terminal. In yeast and metazoans, Med15 KIX domain has been found to interact with various transcription factors, regulating several processes including carbohydrate metabolism, lipogenesis, stress response and multidrug resistance. Mechanism of Med15 functioning in Arabidopsis is largely unknown. In this study, interactome of Arabidopsis Med15, AtMed15a, was characterized. We found 45 proteins that interact with AtMed15a KIX domain, including 11 transcription factors, 3 single strand nucleic acid-binding proteins and 1 splicing factor...
January 17, 2018: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/29340650/colocalization-of-galectin-3-with-cd147-is-associated-with-increased-gelatinolytic-activity-in-ulcerating-human-corneas
#16
Andrea Cruzat, Miguel Gonzalez-Andrades, Jérôme Mauris, Dina B AbuSamra, Preethi Chidambaram, Kenneth R Kenyon, James Chodosh, Claes H Dohlman, Pablo Argüeso
Purpose: Galectin-3 is a carbohydrate-binding protein known to promote expression of matrix metalloproteinases, a hallmark of ulceration, through interaction with the extracellular matrix metalloproteinase inducer CD147. The aim of this study was to investigate the distribution of galectin-3 in corneas of patients with ulcerative keratitis and to determine its relationship to CD147 and the presence of gelatinolytic activity. Methods: This was an observational case series involving donor tissue from 13 patients with active corneal ulceration and 6 control corneas...
January 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29340167/subcutaneous-glucagon-infusion-and-continuous-glucose-monitoring-enable-effective-management-of-hypoglycemia-in-a-patient-with-igf-2-producing-hemangiopericytoma
#17
Eric D Buras, Emily Weatherup, Jennifer Wyckoff
Background: Ectopic insulin-like growth factor (IGF)-2 production is a rare complication of an array of epithelial and mesenchymal tumors, and can clinically manifest as life-threatening hypoglycemia. Case presentation: A 49-year-old woman with 13-year history of metastatic hemangiopericytoma, previously treated with multiple rounds of chemotherapy and palliative radiation, presented to the emergency department after a hypoglycemic seizure. On arrival, glucose was 18 mg/dL (1...
2018: Clinical Diabetes and Endocrinology
https://www.readbyqxmd.com/read/29340150/xylose-absorption-fermentation-and-post-absorptive-metabolism-in-the-pig
#18
REVIEW
Nichole F Huntley, John F Patience
Xylose, as β-1,4-linked xylan, makes up much of the hemicellulose in cell walls of cereal carbohydrates fed to pigs. As inclusion of fibrous ingredients in swine diets continues to increase, supplementation of carbohydrases, such as xylanase, is of interest. However, much progress is warranted to achieve consistent enzyme efficacy, including an improved understanding of the utilization and energetic contribution of xylanase hydrolysis product (i.e. xylooligosaccharides or monomeric xylose). This review examines reports on xylose absorption and metabolism in the pig and identifies gaps in this knowledge that are essential to understanding the value of carbohydrase hydrolysis products in the nutrition of the pig...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29339830/differential-association-of-dietary-carbohydrate-intake-with-metabolic-syndrome-in-the-us-and-korean-adults-data-from-the-2007-2012-nhanes-and-knhanes
#19
Kyungho Ha, Kijoon Kim, Ock K Chun, Hyojee Joung, YoonJu Song
BACKGROUND/OBJECTIVES: The risk factors for metabolic syndrome may differ between Western and Asian countries due to their distinct dietary cultures. However, few studies have directly compared macronutrient intake and its association with the risk of metabolic syndrome in the US and Korean adults using national survey data. SUBJECT/METHODS: Based on the data from the US and Korean versions of the 2007-2012 National Health and Nutrition Examination Survey (NHANES, KNHANES), a total of 3,324 American and 20,515 Korean adults were included...
January 16, 2018: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29339803/carbohydrates-protect-protein-against-abiotic-fragmentation-by-soil-minerals
#20
Patrick N Reardon, Eric D Walter, Carrie L Marean-Reardon, Chad W Lawrence, Markus Kleber, Nancy M Washton
The degradation and turnover of soil organic matter is an important part of global carbon cycling and of particular importance with respect to attempts to predict the response of ecosystems to global climate change. Thus, it is important to mechanistically understand the processes by which organic matter can be degraded in the soil environment, including contact with reactive or catalytic mineral surfaces. We have characterized the outcome of the interaction of two minerals, birnessite and kaolinite, with two disaccharides, cellobiose and trehalose...
January 16, 2018: Scientific Reports
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