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https://www.readbyqxmd.com/read/28239997/effects-of-different-doses-of-silk-peptide-on-energy-metabolism-during-exercise-in-mice
#1
Suh Heajung, Kim Jisu, Park Jonghoon, Kim Bokyung, Lee Chi-Ho, Lim Kiwon
Purpose: This study was carried out to determine the optimal dose of silk peptide for enhancing fat metabolism during exercise. Methods: Fifty male ICR mice were randomly divided into five groups: Sed, SP0, SP200, SP400, and SP800. All SP mice underwent training by running on a treadmill 5 times a week for 2 weeks (20 m/min, 8° slope, 50 min/day for the first week and 25 m/min, 8° slope, 50 min/day at about 70-75% of maximum oxygen uptake for the second week)...
February 24, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/28239986/molecular-analysis-of-the-early-interaction-between-the-grapevine-flower-and-botrytis-cinerea-reveals-that-prompt-activation-of-specific-host-pathways-leads-to-fungus-quiescence
#2
Zeraye H Mehari, Stefania Pilati, Paolo Sonego, Giulia Malacarne, Urska Vrhovsek, Kristof Engelen, Paul Tudzynski, Michela Zottini, Elena Baraldi, Claudio Moser
Grapes quality and yield can be impaired by bunch rot, caused by the necrotrophic fungus Botrytis cinerea. Infection often occurs at flowering and the pathogen stays quiescent until fruit maturity. Here, we report a molecular analysis of the early interaction between B. cinerea and Vitis vinifera flowers, using a controlled infection system, confocal microscopy and integrated transcriptomic and metabolic analysis of the host and the pathogen. Flowers from fruiting cuttings of the cv. Pinot Noir were infected with GFP-labeled B...
February 27, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28239971/characterization-of-n-methylated-amino-acids-by-gc-ms-after-ethyl-chloroformate-derivatization
#3
B Sudarshana Reddy, V Naresh Chary, P Pavankumar, S Prabhakar
Methylation is an essential metabolic process in the biological systems, and it is significant for several biological reactions in living organisms. Methylated compounds are known to be involved in most of the bodily functions, and some of them serve as biomarkers. Theoretically, all α-amino acids can be methylated, and it is possible to encounter them in most animal/plant samples. But the analytical data, especially the mass spectral data, are available only for a few of the methylated amino acids. Thus, it is essential to generate mass spectral data and to develop mass spectrometry methods for the identification of all possible methylated amino acids for future metabolomic studies...
August 2016: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28239968/training-in-metabolomics-research-ii-processing-and-statistical-analysis-of-metabolomics-data-metabolite-identification-pathway-analysis-applications-of-metabolomics-and-its-future
#4
Stephen Barnes, H Paul Benton, Krista Casazza, Sara J Cooper, Xiangqin Cui, Xiuxia Du, Jeffrey Engler, Janusz H Kabarowski, Shuzhao Li, Wimal Pathmasiri, Jeevan K Prasain, Matthew B Renfrow, Hemant K Tiwari
Metabolomics, a systems biology discipline representing analysis of known and unknown pathways of metabolism, has grown tremendously over the past 20 years. Because of its comprehensive nature, metabolomics requires careful consideration of the question(s) being asked, the scale needed to answer the question(s), collection and storage of the sample specimens, methods for extraction of the metabolites from biological matrices, the analytical method(s) to be employed and the quality control of the analyses, how collected data are correlated, the statistical methods to determine metabolites undergoing significant change, putative identification of metabolites and the use of stable isotopes to aid in verifying metabolite identity and establishing pathway connections and fluxes...
August 2016: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28239964/training-in-metabolomics-research-ii-processing-and-statistical-analysis-of-metabolomics-data-metabolite-identification-pathway-analysis-applications-of-metabolomics-and-its-future
#5
S Barnes, H P Benton, K Casazza, S J Cooper, X Cui, X Du, J Engler, J H Kabarowski, S Li, W Pathmasiri, J K Prasain, M B Renfrow, H K Tiwari
Metabolomics is perhaps the most challenging of the -omics fields, given the complexity of an organism's metabolome and the rapid rate at which it changes. When one sets out to study metabolism there are numerous dynamic variables that can influence metabolism that must be considered. Recognizing the experimental challenges confronting researchers who undertake metabolism studies, workshops like the one at University of Alabama at Birmingham have been established to offer instructional guidance. A summary of the UAB course training materials is being published as a two-part Special Feature Tutorial...
August 2016: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28239846/inhibition-of-6-phosphofructo-2-kinase-suppresses-fibroblast-like-synoviocytes-mediated-synovial-inflammation-and-joint-destruction-in-rheumatoid-arthritis
#6
Yaoyao Zou, Shan Zeng, Mingcheng Huang, Qian Qiu, Youjun Xiao, Maohua Shi, Zhongping Zhan, Liuqin Liang, Xiuyan Yang, Hanshi Xu
BACKGROUND AND PURPOSE: Abnormal glycolytic metabolism contributes to joint inflammation in rheumatoid arthritis (RA). The aims of this study were to investigate the role of 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 3 (PFKFB3), a bifunctional enzyme that controls the glycolytic rate, in regulating fibroblast-like synoviocyte (FLS)-mediated synovial inflammation and invasiveness in RA. EXPERIMENTAL APPROACH: A specific PFKFB3 inhibitor, PFK15, and siRNA were used to evaluate the role of PFKFB3...
February 27, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28239800/intermediate-cd14-cd16-monocyte-predicts-severe-coronary-stenosis-and-extensive-plaque-involvement-in-asymptomatic-individuals
#7
Shyh-Chyi Lo, Wen-Jeng Lee, Ching-Yi Chen, Bai-Chin Lee
Circulating leukocyte subtypes and monocyte subsets are independent predictors of cardiovascular events. We hypothesized that an increased leukocyte subtype would predict severe coronary stenosis and extensive plaque involvement. We retrospectively analyzed clinical, laboratory, and coronary CT data in a total of 588 asymptomatic adults (69% men; mean age, 57 ± 9 years) undergoing a general health check-up. Intermediate CD14(++)CD16(+) monocyte count had the strongest association with mixed and calcified plaque scores, whereas the numbers of neutrophils and classical CD14(++)CD16(-) monocytes were significantly associated with non-calcified plaque score...
February 26, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28239774/change-of-monascus-pigment-metabolism-and-secretion-in-different-extractive-fermentation-process
#8
Gong Chen, Rui Tang, Xiaofei Tian, Peng Qin, Zhenqiang Wu
Monascus pigments that were generally produced intracellularly from Monascus spp. are important natural colorants in food industry. In this study, change of pigment metabolism and secretion was investigated through fed-batch extractive fermentation and continuous extractive fermentation. The biomass, secreting rate of pigment and total pigment yield closely correlated with the activated time of extractive fermentation as well as the composition of feeding nutrients. Metal ions played a key role in both the cell growth and pigment metabolism...
February 26, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28239649/switching-harmful-visceral-fat-to-beneficial-energy-combustion-improves-metabolic-dysfunctions
#9
Xiaoyan Yang, Wenhai Sui, Meng Zhang, Mei Dong, Sharon Lim, Takahiro Seki, Ziheng Guo, Carina Fischer, Huixia Lu, Cheng Zhang, Jianmin Yang, Meng Zhang, Yangang Wang, Caixia Cao, Yanyan Gao, Xingguo Zhao, Meili Sun, Yuping Sun, Rujie Zhuang, Nilesh J Samani, Yun Zhang, Yihai Cao
Visceral fat is considered the genuine and harmful white adipose tissue (WAT) that is associated to development of metabolic disorders, cardiovascular disease, and cancer. Here, we present a new concept to turn the harmful visceral fat into a beneficial energy consumption depot, which is beneficial for improvement of metabolic dysfunctions in obese mice. We show that low temperature-dependent browning of visceral fat caused decreased adipose weight, total body weight, and body mass index, despite increased food intake...
February 23, 2017: JCI Insight
https://www.readbyqxmd.com/read/28239646/mammary-adipocytes-stimulate-breast-cancer-invasion-through-metabolic-remodeling-of-tumor-cells
#10
Yuan Yuan Wang, Camille Attané, Delphine Milhas, Béatrice Dirat, Stéphanie Dauvillier, Adrien Guerard, Julia Gilhodes, Ikrame Lazar, Nathalie Alet, Victor Laurent, Sophie Le Gonidec, Denis Biard, Caroline Hervé, Frédéric Bost, Guo Sheng Ren, Françoise Bono, Ghislaine Escourrou, Marc Prentki, Laurence Nieto, Philippe Valet, Catherine Muller
In breast cancer, a key feature of peritumoral adipocytes is their loss of lipid content observed both in vitro and in human tumors. The free fatty acids (FFAs), released by adipocytes after lipolysis induced by tumor secretions, are transferred and stored in tumor cells as triglycerides in lipid droplets. In tumor cell lines, we demonstrate that FFAs can be released over time from lipid droplets through an adipose triglyceride lipase-dependent (ATGL-dependent) lipolytic pathway. In vivo, ATGL is expressed in human tumors where its expression correlates with tumor aggressiveness and is upregulated by contact with adipocytes...
February 23, 2017: JCI Insight
https://www.readbyqxmd.com/read/28239622/measuring-oxygen-consumption-rate-in-caenorhabditis-elegans
#11
Konstantinos Palikaras, Nektarios Tavernarakis
The rate of oxygen consumption is a vital marker indicating cellular function during lifetime under normal or metabolically challenged conditions. It is used broadly to study mitochondrial function (Artal-Sanz and Tavernarakis, 2009; Palikaras et al., 2015; Ryu et al., 2016) or investigate factors mediating the switch from oxidative phosphorylation to aerobic glycolysis (Chen et al., 2015; Vander Heiden et al., 2009). In this protocol, we describe a method for the determination of oxygen consumption rates in the nematode Caenorhabditis elegans...
December 5, 2016: Bio-protocol
https://www.readbyqxmd.com/read/28239599/iran-diabetes-research-roadmap-idrr-study-a-preliminary-study-on-diabetes-research-in-the-world-and-iran
#12
Ensieh Nasli-Esfahani, Farshad Farzadfar, Marjan Kouhnavard, Robabeh Ghodssi-Ghassemabadi, Alireza Khajavi, Maryam Peimani, Rezvan Razmandeh, Mahboobeh Vala, Gita Shafiee, Camelia Rambod, Mahnaz Sanjari, Maryam Aalaa, Maryam Ghodsi, Farideh Razi, Fatemeh Bandarian, Bagher Larijani
BACKGROUNDS: Diabetes is one of the most common metabolic disorders worldwide. This study aim was to provide detail analysis of diabetes research output and its trend in Iran as well as in the world and compare them. METHODS: Data was retrieved from PubMed database using a suitable search strategy and application of proper operator "AND", "OR" and "NOT". All English documents published from 2008 to 2012 were included. Meeting abstract, letter to the editor, guidelines, consensus and reviews were excluded...
2017: Journal of Diabetes and Metabolic Disorders
https://www.readbyqxmd.com/read/28239544/measures-of-metabolism-and-complexity-in-the-brain-of-patients-with-disorders-of-consciousness
#13
Olivier Bodart, Olivia Gosseries, Sarah Wannez, Aurore Thibaut, Jitka Annen, Melanie Boly, Mario Rosanova, Adenauer G Casali, Silvia Casarotto, Giulio Tononi, Marcello Massimini, Steven Laureys
BACKGROUND: Making an accurate diagnosis in patients with disorders of consciousness remains challenging. (18)F-fluorodeoxyglucose (FDG)-PET has been validated as a diagnostic tool in this population, and allows identifying unresponsive patients with a capacity for consciousness. In parallel, the perturbational complexity index (PCI), a new measure based on the analysis of the electroencephalographic response to transcranial magnetic stimulation, has also been suggested as a tool to distinguish between unconscious and conscious states...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28239539/metabolic-syndrome-s-risk-factors-and-its-association-with-nutritional-status-in-schoolchildren
#14
Fabiana Costa Teixeira, Flavia Erika Felix Pereira, Avany Fernandes Pereira, Beatriz Gonçalves Ribeiro
The metabolic risk factors (RF) to the diagnosis of metabolic syndrome (MetS) have been evidenced at early ages, including children. The aim of the present study was to identify the prevalence of RF to the diagnosis of MetS and its association with nutritional status of schoolchildren from 6 to 10 years old. A cross-sectional study was carried out in 505 students of municipal schools in Macae, Brazil, conducted from 2013 to 2014. The RF evaluated were: blood pressure (mm Hg), triglycerides (mmol/L), HDL-cholesterol (mmol/L) fasting glucose (mmol/L) and waist circumference (cm)...
June 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28239482/aggressive-clinical-approach-to-obesity-improves-metabolic-and-clinical-outcomes-and-can-prevent-bariatric-surgery-a-single-center-experience
#15
Flavio A Cadegiani, Gustavo C Diniz, Gabriella Alves
BACKGROUND: The number of bariatric procedures has exponentially increased in the past decade, as a result of the lack of successful clinical weight-loss interventions. The main reasons for the failure of clinical obesity management are: (1) anti-obesity medications are administered as monotherapies (or pre-combined drugs); (2) lack of combination between pharmacotherapy and non-pharmacological modalities; (3) short duration of pharmacotherapy for obesity; (4) lack of weight-loss maintenance strategies; (5) misunderstanding of the complex pathophysiology of obesity; and (6) underprescription of anti-obesity medications...
2017: BMC Obesity
https://www.readbyqxmd.com/read/28239416/biodegradation-of-alkaline-lignin-by-bacillus-ligniniphilus-l1
#16
Daochen Zhu, Peipei Zhang, Changxiao Xie, Weimin Zhang, Jianzhong Sun, Wei-Jun Qian, Bin Yang
BACKGROUND: Lignin is the most abundant aromatic biopolymer in the biosphere and it comprises up to 30% of plant biomass. Although lignin is the most recalcitrant component of the plant cell wall, still there are microorganisms able to decompose it or degrade it. Fungi are recognized as the most widely used microbes for lignin degradation. However, bacteria have also been known to be able to utilize lignin as a carbon or energy source. Bacillus ligniniphilus L1 was selected in this study due to its capability to utilize alkaline lignin as a single carbon or energy source and its excellent ability to survive in extreme environments...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28239415/coupling-gene-regulatory-patterns-to-bioprocess-conditions-to-optimize-synthetic-metabolic-modules-for-improved-sesquiterpene-production-in-yeast
#17
Bingyin Peng, Manuel R Plan, Alexander Carpenter, Lars K Nielsen, Claudia E Vickers
BACKGROUND: Assembly of heterologous metabolic pathways is commonly required to generate microbial cell factories for industrial production of both commodity chemicals (including biofuels) and high-value chemicals. Promoter-mediated transcriptional regulation coordinates the expression of the individual components of these heterologous pathways. Expression patterns vary during culture as conditions change, and this can influence yeast physiology and productivity in both positive and negative ways...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28239414/a-novel-small-rna-coar-regulates-coenzyme-a-biosynthesis-and-tolerance-of-synechocystis-sp-pcc6803-to-1-butanol-possibly-via-promoter-directed-transcriptional-silencing
#18
Tao Sun, Guangsheng Pei, Jiangxin Wang, Lei Chen, Weiwen Zhang
BACKGROUND: Microbial small RNAs (sRNAs) have been proposed as valuable regulatory elements for optimizing cellular metabolism for industrial purposes. However, little information is currently available on functional relevance of sRNAs to biofuels tolerance in cyanobacteria. RESULTS: Here, we described the identification and functional characterization of a novel 124 nt sRNA Ncl1460 involved in tolerance to biofuel 1-butanol in Synechocystis sp. PCC 6803. The expression of Ncl1460 was verified by blotting assay and its length was determined through 3' RACE...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28239412/genetic-engineering-of-arabidopsis-to-overproduce-disinapoyl-esters-potential-lignin-modification-molecules
#19
Shinyoung Lee, Huaping Mo, Jeong Im Kim, Clint Chapple
BACKGROUND: Monolignol-like molecules can be integrated into lignin along with conventional monolignol units, and it has been shown that the incorporation of non-canonical subunits can be used to generate hydrolysable lignin by introduction of ester linkages into the polymer and that this type of lignin is more easily removable. Disinapoyl esters (DSEs), which to some degree resemble the monolignol sinapyl alcohol, may be promising lignin modifying units for this purpose. As a first step toward determining whether this goal is achievable, we manipulated metabolic flux in Arabidopsis to increase the amounts of DSEs by overexpressing sinapoylglucose:sinapoylglucose sinapoyltransferase (SST) which produces two main DSEs, 1,2-disinapoylglucose, and another compound we identify in this report as 3,4-disinapoyl-fructopyranose...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28239404/impact-of-a-6-week-non-energy-restricted-ketogenic-diet-on-physical-fitness-body-composition-and-biochemical-parameters-in-healthy-adults
#20
Paul Urbain, Lena Strom, Lena Morawski, Anja Wehrle, Peter Deibert, Hartmut Bertz
BACKGROUND: The ketogenic diet (KD) is a very low-carbohydrate, high-fat and adequate-protein diet that without limiting calories induces different metabolic adaptations, eg, increased levels of circulating ketone bodies and a shift to lipid metabolism. Our objective was to assess the impact of a 6-week non-energy-restricted KD in healthy adults beyond cohorts of athletes on physical performance, body composition, and blood parameters. METHODS: Our single arm, before-and-after comparison study consisted of a 6-week KD with a previous preparation period including detailed instructions during classes and individual counselling by a dietitian...
2017: Nutrition & Metabolism
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