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https://www.readbyqxmd.com/read/29144590/metabolic-profiling-of-normal-hepatocyte-and-hepatocellular-carcinoma-cells-via-1-h-nuclear-magnetic-resonance-spectroscopy
#1
Yang Chen, Zhong Chen, Jiang-Hua Feng, Yun-Bin Chen, Nai-Shun Liao, Ying Su, Chang-Yan Zou
Hepatocellular carcinoma (HCC) causes death mainly by disseminated metastasis progression from the organ being confined. Different metastatic stages are closely related to cellular metabolic profiles. Normal hepatocyte and HepG2 cell line from low metastatic HCC were studied by NMR-based metabolomic techniques. Multivariate and univariate statistical analyses were utilized to identify characteristic metabolites from cells and cultured media. Elevated levels of acetate, creatine, isoleucine, leucine, and phenylalanine were observed in HepG2 cells, suggesting more active in gathering nutrient components along with altered amino acid metabolisms and enhanced lipid metabolism...
November 16, 2017: Cell Biology International
https://www.readbyqxmd.com/read/29144205/lessons-in-effector-and-nlr-biology-of-plant-microbe-systems
#2
Aleksandra Białas, Erin K Zess, Juan Carlos De la Concepcion, Marina Franceschetti, Helen G Pennington, Kentaro Yoshida, Jessica L Upson, Emilie Chanclud, Chih-Hang Wu, Thorsten Langner, Abbas Maqbool, Freya A Varden, Lida Derevnina, Khaoula Belhaj, Koki Fujisaki, Hiromasa Saitoh, Ryohei Terauchi, Mark J Banfield, Sophien Kamoun
A diversity of plant-associated organisms secrete effectors-proteins and metabolites that modulate plant physiology to favor host infection and colonization. However, effectors can also activate plant immune receptors, notably nucleotide-binding domain and leucine-rich repeat region (NLR)-containing proteins, enabling plants to fight off invading organisms. This interplay between effectors, their host targets, and the matching immune receptors is shaped by intricate molecular mechanisms and exceptionally dynamic coevolution...
November 16, 2017: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/29140513/amino-acid-and-fatty-acid-levels-affect-hepatic-phosphorus-metabolite-content-in-metabolically-healthy-humans
#3
Sabine Kahl, Bettina Nowotny, Klaus Straßburger, Alessandra Bierwagen, Birgit Klüppelholz, Barbara Hoffmann, Guido Giani, Peter J Nowotny, Franziska Wallscheid, Erifili Hatziagelaki, Giovanni Pacini, Jong-Hee Hwang, Michael Roden
Objective: Hepatic energy metabolism negatively relates to insulin resistance and liver fat content in type 2 diabetes patients, but its role in metabolically healthy humans is unclear. We hypothesized that intrahepatocellular γ-adenosine triphosphate (γATP) and inorganic phosphate (Pi) concentrations exhibit similar associations with insulin sensitivity in non-diabetic non-obese volunteers. Research Design and methods: A total of 76 participants underwent a 4-point sampling 75-g OGTT as well as in vivo31P/1H magnetic resonance spectroscopy...
November 13, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29093244/-metabonomic-analysis-of-the-urine-from-rat-model-with-abnormal-sapra-syndrome
#4
Halidan Abudu, Kasimujiang Aximujiang, Abulaiti Ahemaiti, Guixia Wu, Jingping Zhang, Kurexi Yunusi
To investigate the correlation between the change in metabolic components of urine and the abnormal sapra syndrome by using a rat model of abnormal sapra syndrome.
 Methods: Multiple factors, such as dry environment, dry feed, and chronic electrical stimulation, were used to establish the abnormal sapra syndrome in Wistar rats by Uyghur medicine. The differences in metabolites were detected through the metabonomics method.
 Results: The urine of rats in abnormal sapra syndrome group showed significant high abundance metabolites as follows: Leucine, isoleucine, and glycoprotein...
October 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29079796/seed-defense-biopriming-with-bacterial-cyclodipeptides-triggers-immunity-in-cucumber-and-pepper
#5
Geun Cheol Song, Hye Kyung Choi, Young Sook Kim, Jung Sup Choi, Choong-Min Ryu
Seed priming is to expose seeds to specific compounds to enhance seed germination. Few studies of plant immune activation through seed priming have been conducted. Here, we introduce an emerging technology that combines seed priming with elicitation of plant immunity using biologically active compounds. This technology is named 'seed defense biopriming' (SDB). We prepared heat-stable metabolites from 1,825 root-associated Bacillus spp. isolated from the rhizosphere in South Korea. These preparations were tested for their ability to induce SDB in cucumber and pepper seeds and trigger plant immunity...
October 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29071975/-mechanism-of-heat-reinforcing-needling-for-rheumatoid-arthritis-rabbits-with-cold-syndrome-based-on-metabonomics
#6
Xiao-Zheng Du, Bo Yuan, Xing-Hua Zhang, Liang Tian, Ting-Zhuo Zhang, Xing-Lan Li, Feng-Fan Zhang, Jin-Hai Wang
OBJECTIVE: To explore the specific mechanism of heat-reinforcing needling (HRN) for rheumatoid arthritis (RA) rabbits with cold syndrome based on metabolomics. METHODS: A total of 40 healthy rabbits were randomly divided into a normal group, a model group, a reinforcing-reducing needling(RRN) group, a twirling-reinforcing needling (TRN) group and a HRN group (n=8 rabbits/group). The RA model with cold syndrome was established with ovalbumin and freezing. Except the normal and model groups, RRN, TRN and HRN were given at "Zusanli" (ST 36) in the corresponding acupuncture groups for 30 min, once a day for 7 days...
June 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29046328/genetic-support-for-a-causal-role-of-insulin-resistance-on-circulating-branched-chain-amino-acids-and-inflammation
#7
Qin Wang, Michael V Holmes, George Davey Smith, Mika Ala-Korpela
OBJECTIVE: Insulin resistance has deleterious effects on cardiometabolic disease. We used Mendelian randomization analyses to clarify the causal relationships of insulin resistance (IR) on circulating blood-based metabolites to shed light on potential mediators of the IR to cardiometabolic disease relationship. RESEARCH DESIGN AND METHODS: We used 53 single nucleotide polymorphisms associated with IR from a recent genome-wide association study (GWAS) to explore their effects on circulating lipids and metabolites...
October 18, 2017: Diabetes Care
https://www.readbyqxmd.com/read/29039583/serum-metabolomic-profile-in-genetically-modified-cows-carrying-human-%C3%AE-%C3%A2-lactalbumin-gene
#8
Qin Wang, Wei Fu, Xiaofei Liu, Jianwu Wang, Chunyan Feng, Songyin Qiu, Xiaolin Li, Dandan Liu, Shuifang Zhu, Xiangmei Lin
The present study aimed to investigate the serum metabolomic profiles in genetically modified cows carrying and expressing human lactalbumin α (LALBA) and non‑LALBA cows, and identify altered metabolic characteristics following the genetic modification. Serum biochemistry indexes were measured according to protocols recommended by International Federation of Clinical Chemistry. The metabolomic profiles were determined using the serum samples collected from LALBA (n=6) and non‑LALBA cows (n=6). Welch's two‑sample t‑test was used to identify the metabolites that significantly differed between the LALBA and non‑LALBA groups (fold‑change ≠ 1 and P<0...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29035044/nicotine-alters-the-gut-microbiome-and-metabolites-of-gut-brain-interactions-in-a-sex-specific-manner
#9
Liang Chi, Ridwan Mahbub, Bei Gao, Xiaoming Bian, Pengcheng Tu, Hongyu Ru, Kun Lu
As the primary active substance in tobacco, nicotine affects the activity of the central nervous system, and its effects are sex-dependent. There are complex interactions between the gut and brain, and the gut microbiome can influence neuronal activity and host behavior, with diverse chemical signaling being involved. However, it is unclear whether nicotine can affect the normal gut microbiome and associated chemical signaling of the gut-brain axis. Sex is an important factor that shapes the gut microbiome, but the role of sex in the interaction among nicotine, gut bacteria, and related metabolites remains unknown...
November 16, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/29032784/spent-culture-medium-analysis-from-individually-cultured-bovine-embryos-demonstrates-metabolomic-differences
#10
Kayla J Perkel, Pavneesh Madan
Spent culture medium can provide valuable information regarding the physiological state of a bovine preimplantation embryos through non-invasive analysis of the sum/depleted metabolite constituents. Metabolomics has become of great interest as an adjunct technique to morphological and cleavage-rate assessment, but more importantly, in improving our understanding of metabolism. In this study, in vitro produced bovine embryos developing at different rates were evaluated using proton nuclear magnetic resonance (1H NMR)...
October 16, 2017: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/29026156/metabolic-responses-of-eisenia-fetida-to-individual-pb-and-cd-contamination-in-two-types-of-soils
#11
Ronggui Tang, Changfeng Ding, Yibing Ma, Junsong Wang, Taolin Zhang, Xingxiang Wang
To characterize the potential toxicity of low Pb- and Cd-contaminated arable soils, earthworms were exposed to Pb contaminated ferrosol, cambosol or Cd contaminated ferrosol for two weeks. Polar metabolites of earthworms were detected by nuclear magnetic resonance. Data were then analyzed with principal component analysis followed by orthogonal signal correction-partial least squares-discriminant analysis and univariate analysis to determine possible mechanisms for the changes in metabolites. The survival rates, metal concentrations and bioaccumulation factor (BAF) of the earthworms were also measured and calculated as auxiliary data...
October 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29017947/integrated-profiling-of-global-metabolomic-and-transcriptomic-responses-to-viral-hemorrhagic-septicemia-virus-infection-in-olive-flounder
#12
Se-Young Cho, Yong-Kook Kwon, Miso Nam, Bipin Vaidya, Seok Ryel Kim, Sunghoon Lee, Joseph Kwon, Duwoon Kim, Geum-Sook Hwang
Viral hemorrhagic septicemia virus (VHSV) is one of the most serious viral pathogen that infects farmed fish. In this study, we measured the replication of VHSV increased steadily at 9, 24, 72, and 120 h after infection and progression of necrosis was observed at 72 hpi. We performed transcriptomic and metabolomics profiling of kidney tissues collected at each infection time using Illumina HiSeq2000 and ultra-performance liquid chromatography/quadrupole time-of-flight mass spectroscopy to investigate the mechanisms of VHSV infection in the kidneys of olive flounder...
October 7, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29017444/quantitative-trait-loci-associated-with-different-polar-metabolites-in-perennial-ryegrass-providing-scope-for-breeding-towards-increasing-certain-polar-metabolites
#13
Alexandre Foito, Christine Anne Hackett, Derek Stewart, Janaki Velmurugan, Dan Milbourne, Stephen L Byrne, Susanne Barth
BACKGROUND: Recent advances in the mapping of biochemical traits have been reported in Lolium perenne. Although the mapped traits, including individual sugars and fatty acids, contribute greatly towards ruminant productivity, organic acids and amino acids have been largely understudied despite their influence on the ruminal microbiome. RESULTS: In this study, we used a targeted gas-chromatography mass spectrometry (GC-MS) approach to profile the levels of 25 polar metabolites from different classes (sugars, amino acids, phenolic acids, organic acids and other nitrogen-containing compounds) present in a L...
October 10, 2017: BMC Genetics
https://www.readbyqxmd.com/read/28986165/metabolic-phenotyping-using-kinetic-measurements-in-young-and-older-healthy-adults
#14
Nicolaas E P Deutz, John J Thaden, Gabriella A M Ten Have, Dillon K Walker, Mariëlle P K J Engelen
BACKGROUND: The aging process is often associated with the presence of sarcopenia. Although changes in the plasma concentration of several amino acids have been observed in older adults, it remains unclear whether these changes are related to disturbances in whole body production and/or interconversions. METHODS: We studied 10 healthy young (~22.7 y) and 17 older adults (~64.8 y) by administering a mixture of stable amino acid tracers in a pulse and in a primed constant infusion...
October 3, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28965810/assessment-of-tryptophan-metabolism-and-signs-of-depression-in-individuals-with-carbohydrate-malabsorption
#15
Dietmar Enko, Helga Wagner, Gernot Kriegshäuser, Wolfgang Brandmayr, Gabriele Halwachs-Baumann, Wolfgang J Schnedl, Sieglinde Zelzer, Harald Mangge, Andreas Meinitzer
This prospective cross-sectional study aimed to investigate the potential association between primary-adult lactose malabsorption, fructose malabsorption, tryptophan (TRP) metabolism and the presence of depressive signs. Overall 251 patients, who were referred for lactase gene C/T-13910 polymorphism genotyping and fructose hydrogen/methane breath testing, were included. All participants filled out the Beck Depression Inventory (BDI II). Serum concentrations of tryptophan (TRP), kynurenine (KYN), kynuric acid (KYNA), and TRP competing amino acids (leucine, isoleucine, valine, phenylalanine, tyrosine) were measured by high-pressure liquid-chromatography...
September 22, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28928660/-1-h-nmr-based-metabolomics-study-of-the-toxicological-effects-in-rats-induced-by-renqing-mangjue-pill-a-traditional-tibetan-medicine
#16
Can Xu, Caidan Rezeng, Jian Li, Lan Zhang, Yujing Yan, Jian Gao, Yingfeng Wang, Zhongfeng Li, Jianxin Chen
"RenqingMangjue" pill (RMP), as an effective prescription of Traditional Tibetan Medicine (TTM), has been widely used in treating digestive diseases and ulcerative colitis for over a thousand years. In certain classical Tibetan Medicine, heavy metal may add as an active ingredient, but it may cause contamination unintentionally in some cases. Therefore, the toxicity and adverse effects of TTM became to draw public attention. In this study, 48 male Wistar rats were orally administrated with different dosages of RMP once a day for 15 consecutive days, then half of the rats were euthanized on the 15th day and the remaining were euthanized on the 30th day...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28926946/the-fungal-bzip-transcription-factor-atfb-controls-virulence-associated-processes-in-aspergillus-parasiticus
#17
Josephine Wee, Sung-Yong Hong, Ludmila V Roze, Devin M Day, Anindya Chanda, John E Linz
Fungal basic leucine zipper (bZIP) transcription factors mediate responses to oxidative stress. The ability to regulate stress response pathways in Aspergillus spp. was postulated to be an important virulence-associated cellular process, because it helps establish infection in humans, plants, and animals. Previous studies have demonstrated that the fungal transcription factor AtfB encodes a protein that is associated with resistance to oxidative stress in asexual conidiospores, and AtfB binds to the promoters of several stress response genes...
September 16, 2017: Toxins
https://www.readbyqxmd.com/read/28923651/high-resolution-magic-angle-spinning-nuclear-magnetic-resonance-spectroscopy-for-the-metabolic-assessment-of-acute-rejection-after-cardiac-transplantation-in-rats
#18
C W Lee, J S Lee, C W Woo, S Kim
PURPOSE: To evaluate the potential of high-resolution magic angle spinning (HR-MAS) (1)H nuclear magnetic resonance (NMR) spectroscopy for metabolite characterization and the differentiation of acute rejection after heart transplantation in rat models. METHODS: We transplanted syngeneic heart grafts from Lewis rats (n = 4) and allogeneic heart grafts from F344 rats (n = 4) heterotopically into Lewis recipients. On day 7 postoperatively, the transplanted hearts were harvested for ex vivo (1)H NMR spectroscopy and HR-MAS (1)H NMR spectroscopy...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28915534/revealing-anti-inflammation-mechanism-of-water-extract-and-oil-of-forsythiae-fructus-on-carrageenan-induced-edema-rats-by-serum-metabolomics
#19
An Yuan, Lihong Gong, Lin Luo, Jue Dang, Xiaohong Gong, Mengjie Zhao, Yan Li, Yunxia Li, Cheng Peng
Forsythiae Fructus is an important Chinese medicine which shows a significant effect against inflammation. This study aimed to investigate the preventive anti-inflammation mechanism of Forsythiae Fructus by serum metabolomics strategy and compare the difference of the metabolism pathways between Forsythia extract and Forsythia oil in rat. Four groups (control group, model group, Forsythia extract group and Forsythia oil group) were orally administered 10mL/kg 0.5% Tween 80 solution, 10mL/kg 0.5% Tween 80 solution, 5g/kg Forsythia extract and 0...
November 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28904371/acute-interaction-between-hydrocortisone-and-insulin-alters-the-plasma-metabolome-in-humans
#20
Mohammad A Alwashih, Roland H Stimson, Ruth Andrew, Brian R Walker, David G Watson
With the aim of identifying biomarkers of glucocorticoid action and their relationship with biomarkers of insulin action, metabolomic profiling was carried out in plasma samples from twenty healthy men who were administered either a low or medium dose insulin infusion (n = 10 each group). In addition, all subjects were given metyrapone (to inhibit adrenal cortisol secretion) + /- hydrocortisone (HC) in a randomised crossover design to produce low, medium and high glucocorticoid levels. The clearest effects of insulin were to reduce plasma levels of the branched chain amino acids (BCAs) leucine/isoleucine and their deaminated metabolites, and lowered free fatty acids and acylcarnitines...
September 13, 2017: Scientific Reports
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