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leucine metabolite

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https://www.readbyqxmd.com/read/29338886/overweight-and-obesity-status-in-pregnant-women-are-related-to-intestinal-microbiota-and-serum-metabolic-and-inflammatory-profiles
#1
Noora Houttu, Kati Mokkala, Kirsi Laitinen
BACKGROUND: Overweight and obesity may predispose women to clinical complications during their pregnancy. We hypothesize that a higher degree of overweight status is related to a range of aberrations in biomarkers already in early pregnancy. Our objective was to investigate whether intestinal microbiota, serum metabolic and inflammatory profiles differ in relation to the degree of overweight status in pregnant women. METHODS: This study investigated 52 overweight and 47 obese pregnant women in early pregnancy...
December 27, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29306913/diagnosis-of-acute-pediatric-appendicitis-from-children-with-inflammatory-diseases-by-combination-of-metabolic-markers-and-inflammatory-response-variables
#2
Mengjie Yu, Tianxin Xiang, Xiaoping Wu, Shouhua Zhang, Wenlong Yang, Yu Zhang, Qiang Chen, Shuilin Sun, Baogang Xie
BACKGROUND: The discovery of new metabolic markers may be helpful for early diagnosis of acute pediatric appendicitis (APA). However, no studies have been reported regarding identification of potential metabolic markers for the APA diagnosis by metabonomics. METHODS: Serum samples of APA (n=32), non-appendicitis inflammation (NAI, n=32) and healthy children (HS, n=65) were analyzed by the 1H NMR-based metabonomics. A logistic regression model was established to screen the most efficient markers combinations for classification...
January 8, 2018: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29301703/in-ovol-leucine-administration-stimulates-lipid-metabolisms-in-heat-exposed-male-but-not-female-chicks-to-afford-thermotolerance
#3
Guofeng Han, Hui Yang, Takashi Bungo, Hiromi Ikeda, Yunhao Wang, Linh T N Nguyen, Hatem M Eltahan, Mitsuhiro Furuse, Vishwajit S Chowdhury
Thermal manipulation declined embryonic brain and liver concentrations of leucine (Leu). L-Leu in ovo injection afforded thermotolerance in male broiler chicks. This study aimed to examine the role of in ovo injection of L-Leu in metabolic functions, and differences between male and female broiler chicks in thermotolerance. L-Leu injection was performed in ovo on embryonic day (ED) 7 to reveal its role in metabolic activity in embryos and in post-hatch male and female broiler chicks under heat stress. To examine the metabolic activity of embryos, oxygen (O2) consumption, carbon dioxide (CO2) production, heat production and plasma metabolites were analyzed...
January 2018: Journal of Thermal Biology
https://www.readbyqxmd.com/read/29298316/metabolite-profiling-of-the-fermentation-process-of-yamahai-ginjo-shikomi-japanese-sake
#4
Yohei Tatsukami, Hironobu Morisaka, Shunsuke Aburaya, Wataru Aoki, Chihiro Kohsaka, Masafumi Tani, Kiyoo Hirooka, Yoshihiro Yamamoto, Atsushi Kitaoka, Hisashi Fujiwara, Yoshinori Wakai, Mitsuyoshi Ueda
Sake is a traditional Japanese alcoholic beverage prepared by multiple parallel fermentation of rice. The fermentation process of "yamahai-ginjo-shikomi" sake is mainly performed by three microbes, Aspergillus oryzae, Saccharomyces cerevisiae, and Lactobacilli; the levels of various metabolites fluctuate during the fermentation of sake. For evaluation of the fermentation process, we monitored the concentration of moderate-sized molecules (m/z: 200-1000) dynamically changed during the fermentation process of "yamahai-ginjo-shikomi" Japanese sake...
2018: PloS One
https://www.readbyqxmd.com/read/29278834/sugar-sensing-by-chrebp-mondo-mlx-new-insight-into-downstream-regulatory-networks-and-integration-of-nutrient-derived-signals
#5
REVIEW
Essi Havula, Ville Hietakangas
Animals regulate their physiology with respect to nutrient status, which requires nutrient sensing pathways. Simple carbohydrates, sugars, are sensed by the basic-helix-loop-helix leucine zipper transcription factors ChREBP/Mondo, together with their heterodimerization partner Mlx, which are well-established activators of sugar-induced lipogenesis. Loss of ChREBP/Mondo-Mlx in mouse and Drosophila leads to sugar intolerance, that is, inability to survive on sugar containing diet. Recent evidence has revealed that ChREBP/Mondo-Mlx responds to sugar and fatty acid-derived metabolites through several mechanisms and cross-connects with other nutrient sensing pathways...
December 23, 2017: Current Opinion in Cell Biology
https://www.readbyqxmd.com/read/29246383/study-of-the-metabolomics-characteristics-of-patients-with-metabolic-syndrome-based-on-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry
#6
Ning Wu, Wenbo Wang, Min Yi, Siying Cheng, Dongsheng Wang
BACKGROUND: Metabolic syndrome (MS) is a disease with complex pathophysiology and pathogenesis involving multiple systems of the human body. This study aimed to identify serum metabolites that are relevant to MS. MATERIAL AND METHODS: This study involved 40 patients with MS and 28 healthy adults, and the following data were statistically analyzed: basic clinical data, blood lipids, fasting blood glucose, blood pressure, waist circumference, and visceral fat coefficient...
December 12, 2017: Annales D'endocrinologie
https://www.readbyqxmd.com/read/29231777/de-novo-transcriptome-study-identifies-candidate-genes-involved-in-resistance-to-austropuccinia-psidii-myrtle-rust-in-syzygium-luehmannnii-riberry
#7
Peri Ann Tobias, David Guest, Carsten Külheim, Robert F Park
Austropuccinia psidii, causal agent of myrtle rust, was discovered in Australia in 2010 and has since become established on a wide range of species within the Myrtaceae. Syzygium luehmannii, endemic to Australia, is an increasingly valuable berry crop. Plants were screened for responses to A. psidii inoculation and specific resistance, in the form of localised necrosis, was determined in 29% of individuals. To understand the molecular basis underlying this response, mRNA was sequenced from leaf samples taken pre-inoculation, and at 24 and 48 hours post inoculation, from four resistant and four susceptible plants...
December 12, 2017: Phytopathology
https://www.readbyqxmd.com/read/29231324/-effects-of-heat-reinforcing-acupuncture-on-urine-metabolites-in-rheumatoid-arthritis-rabbits
#8
Xiaozheng Du, Bo Yuan, Jinhai Wang, Xinghua Zhang, Liang Tian, Chaozhan Ren, Huazong Zeng
OBJECTIVE: To compare the effects of different acupuncture methods on urine metabolites in rheumatoid arthritis (RA) rabbits, and to explore the specificity mechanism of heat-reinforcing acupuncture for RA. METHODS: A total of 40 clean purple-blue rabbits were randomly allocated to a normal group, a model group, a mild reinforcing-reducing needling (MRRN) group, a twirling-reinforcing needling (TRN) group and a heat-reinforcing needling (HRN) group, 8 rabbits in each one...
January 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29227681/%C3%AE-hydroxy-%C3%AE-methyl-butyrate-is-more-potent-than-leucine-in-inhibiting-starvation-induced-protein-degradation-in-c2c12-myotubes
#9
Yehui Duan, Fengna Li, Qiuping Guo, Wenlong Wang, Lingyu Zhang, Chaoyue Wen, Xiao'an Chen, Yulong Yin
Leucine (Leu) and its metabolites α-ketoisocaproate (KIC) and β-hydroxy-β-methyl butyrate (HMB) are potent regulators of protein turnover. The aim of this study was to compare the inhibitory effects of Leu, KIC, and HMB on protein degradation and to investigate the mechanisms involved. The results showed that the inhibitory effect of HMB (0.38 ± 0.04) was more potent than that of Leu (0.76 ± 0.04) and KIC (0.56 ± 0.04, P < 0.01), and was significantly abolished in the presence of LY294002 (1.48 ± 0...
December 11, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29208041/metabolomics-reveals-distinct-antibody-independent-molecular-signatures-of-ms-aqp4-antibody-and-mog-antibody-disease
#10
Maciej Jurynczyk, Fay Probert, Tianrong Yeo, George Tackley, Tim D W Claridge, Ana Cavey, Mark R Woodhall, Siddharth Arora, Torsten Winkler, Eric Schiffer, Angela Vincent, Gabriele DeLuca, Nicola R Sibson, M Isabel Leite, Patrick Waters, Daniel C Anthony, Jacqueline Palace
The overlapping clinical features of relapsing remitting multiple sclerosis (RRMS), aquaporin-4 (AQP4)-antibody (Ab) neuromyelitis optica spectrum disorder (NMOSD), and myelin oligodendrocyte glycoprotein (MOG)-Ab disease mean that detection of disease specific serum antibodies is the gold standard in diagnostics. However, antibody levels are not prognostic and may become undetectable after treatment or during remission. Therefore, there is still a need to discover antibody-independent biomarkers. We sought to discover whether plasma metabolic profiling could provide biomarkers of these three diseases and explore if the metabolic differences are independent of antibody titre...
December 6, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/29206156/identification-in-vitro-testing-and-molecular-docking-studies-of-microginins-mechanism-of-angiotensin-converting-enzyme-inhibition
#11
Fernanda C R Paiva, Glaucio Monteiro Ferreira, Gustavo H G Trossini, Ernani Pinto
Cyanobacteria are able to produce a wide range of secondary metabolites, including toxins and protease inhibitors, with diverse biological activities. Microginins are small linear peptides biosynthesized by cyanobacteria species that act against proteases. The aim of this study was to isolate and identify microginins produced by the LTPNA08 strain of Microcystis aeruginosa, as well as to verify their potential to inhibit angiotensin-converting enzyme (ACE; EC. 3.4.15.1) using in vitro and in silico methods...
December 5, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29198954/metabolic-reprogramming-of-hydrogenosomal-amino-acids-in-trichomonas-vaginalis-under-glucose-restriction
#12
Kuo-Yang Huang, Seow-Chin Ong, Chih-Ching Wu, Chia-Wei Hsu, Hsin-Chung Lin, Yi-Kai Fang, Wei-Hung Cheng, Po-Jung Huang, Cheng-Hsun Chiu, Petrus Tang
BACKGROUND: Glucose is the major energy source that is converted to pyruvate for ATP generation in the trichomonad hydrogenosome. Under glucose restriction (GR), the regulation of amino acids metabolism is crucial for trichomonad growth and survival. RNA-sequencing (RNA-seq) analysis has been used to identify differentially expressed genes in Trichomonas vaginalis under GR, leading to significant advances in understanding adaptive responses of amino acid metabolism to GR. However, the levels of amino acid metabolites modulated by GR are unknown in T...
November 21, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/29195936/1h-nmr-based-metabolomic-fingerprinting-to-determine-metabolite-levels-in-serrano-peppers-capsicum-annum-l-grown-in-two-different-regions
#13
Elvia Becerra-Martínez, Elideth Florentino-Ramos, Nury Pérez-Hernández, L Gerardo Zepeda-Vallejo, Nemesio Villa-Ruano, Manuel Velázquez-Ponce, Felipe García-Mendoza, Angel E Bañuelos-Hernández
Chili pepper (Capsicum annuum) is the most important and emblematic condiment in Mexican food. Serrano pepper is a variety of C. annuum that is traditionally cultivated in Mexico and commercialized in local markets. The aim of this study was to describe the 1H NMR metabolomic profiling of the aqueous phase of serrano peppers harvested from two distinct regions, in the states of Veracruz and Oaxaca, Mexico. According to the current results, aspartate citrate, lactate, leucine and sucrose were found at higher amount in the serrano peppers from Veracruz...
December 2017: Food Research International
https://www.readbyqxmd.com/read/29187571/the-brassicaceae-family-displays-divergent-shoot-skewed-nlr-resistance-gene-expression
#14
David Munch, Vikas Gupta, Terry Mun, Asger Bachmann, Wolfgang Busch, Simon Kelly, Stig U Andersen
Nucleotide-binding site leucine-rich repeat resistance genes (NLRs) allow plants to detect microbial effectors. We hypothesized that NLR expression patterns could reflect organ-specific differences in effector challenge and tested this by carrying out a meta-analysis of expression data for 1,235 NLRs from 9 plant species. We found stable NLR root/shoot expression ratios within species, suggesting organ-specific hardwiring of NLR expression patterns in anticipation of distinct challenges. Most monocot and dicot plant species preferentially expressed NLRs in roots...
November 29, 2017: Plant Physiology
https://www.readbyqxmd.com/read/29157816/effect-of-ipomoea-aquatica-ethanolic-extract-in-streptozotocin-stz-induced-diabetic-rats-via-1-h-nmr-based-metabolomics-approach
#15
Azliana Abu Bakar Sajak, Ahmed Mediani, Maulidiani, Nur Sumirah Mohd Dom, Chandradevan Machap, Muhajir Hamid, Amin Ismail, Alfi Khatib, Faridah Abas
BACKGROUND: Ipomoea aquatica (locally known as "kangkung") has previously been reported to have hypoglycemic activities on glucose level in diabetes patients. However, the effect of I. aquatica ethanolic extract on the metabolites in the body has remained unknown. PURPOSE: This study provides new insights on the changes of endogenous metabolites caused by I. aquatica ethanolic extract and improves the understanding on the therapeutic efficacy and mechanism of I...
December 1, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29154733/metabolomic-analysis-of-alterations-in-lipid-oxidation-carbohydrate-and-amino-acid-metabolism-in-dairy-goats-caused-by-exposure-to-aflotoxin-b1
#16
Jianbo Cheng, Shuai Huang, Caiyun Fan, Nan Zheng, Yangdong Zhang, Songli Li, Jiaqi Wang
The purposes of this study were to investigate the systemic and characteristic metabolites in the serum of dairy goats induced by aflatoxin B1 (AFB1) exposure and to further understand the endogenous metabolic alterations induced by it. A nuclear magnetic resonance (NMR)-based metabonomic approach was used to analyse the metabolic alterations in dairy goats that were induced by low doses of AFB1 (50 µg/kg DM). We found that AFB1 exposure caused significant elevations of glucose, citrate, acetate, acetoacetate, betaine, and glycine yet caused reductions of lactate, ketone bodies (acetate, β-hydroxybutyrate), amino acids (citrulline, leucine/isoleucine, valine, creatine) and cell membrane structures (choline, lipoprotein, N-acetyl glycoproteins) in the serum...
November 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/29152916/serum-and-urine-metabolomics-study-reveals-a-distinct-diagnostic-model-for-cancer-cachexia
#17
Quan-Jun Yang, Jiang-Rong Zhao, Juan Hao, Bin Li, Yan Huo, Yong-Long Han, Li-Li Wan, Jie Li, Jinlu Huang, Jin Lu, Gen-Jin Yang, Cheng Guo
BACKGROUND: Cachexia is a multifactorial metabolic syndrome with high morbidity and mortality in patients with advanced cancer. The diagnosis of cancer cachexia depends on objective measures of clinical symptoms and a history of weight loss, which lag behind disease progression and have limited utility for the early diagnosis of cancer cachexia. In this study, we performed a nuclear magnetic resonance-based metabolomics analysis to reveal the metabolic profile of cancer cachexia and establish a diagnostic model...
November 19, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29151641/foliar-treatment-of-bacillus-methylotrophicus-ke2-reprograms-endogenous-functional-chemicals-in-sesame-to-improve-plant-health
#18
Ramalingam Radhakrishnan, In-Jung Lee
The present study was aimed to investigate the health of vegetative and reproductive parts of sesame plants during Bacillus methylotrophicus KE2 interaction by their pigments, sugars, organic acid, amino acids, hormones and antioxidant production analysis. In a green-house study, B. methylotrophicus KE2 was sprayed to sesame plants at late flowering stage. The bacterial treatment enhanced photosynthetic pigments of plants including pods than their controls. The shoots of plants had higher amount of sucrose, glucose, galactose, xylitol and malic acid, and while the pods of plants showed the more accumulation of sucrose, glucose, inulin and xylitol in bacterium treated plants...
December 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/29149207/evolution-of-the-metabolome-in-response-to-selection-for-increased-immunity-in-populations-of-drosophila-melanogaster
#19
Navdeep Gogna, Rakesh Sharma, Vanika Gupta, Kavita Dorai, N G Prasad
We used NMR-based metabolomics to test two hypotheses-(i) there will be evolved differences in the metabolome of selected and control populations even under un-infected conditions and (ii) post infection, the metabolomes of the selected and control populations will respond differently. We selected replicate populations of Drosophila melanogaster for increased survivorship (I) against a gram-negative pathogen. We subjected the selected (I) and their control populations (S) to three different treatments: (1) infected with heat-killed bacteria (i), (2) sham infected (s), and (3) untreated (u)...
2017: PloS One
https://www.readbyqxmd.com/read/29148584/metabolic-effects-of-p-p-dde-on-atlantic-salmon-hepatocytes
#20
Pål A Olsvik, Liv Søfteland
Decades after being banned in many countries, DDT and its metabolites are still considered major environmental hazards. The p,p'-DDE isomer, the DDT metabolite found in highest concentration in aquaculture feeds, is an endocrine disruptor with demonstrated ability to induce epigenetic effects. This study aimed at examining the impact of p,p'-DDE on Atlantic salmon. Primary hepatocytes were exposed to four concentrations of p,p'-DDE (0.1, 1, 10, 100 μm) for 48 hours, and endpoints included cytotoxicity, global DNA methylation, targeted transcription and metabolomics profiling (100 μm)...
November 17, 2017: Journal of Applied Toxicology: JAT
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