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serum metabolites

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https://www.readbyqxmd.com/read/28429027/a-metabolomic-study-on-high-risk-stroke-patients-determines-low-levels-of-serum-lysine-metabolites-a-retrospective-cohort-study
#1
Yeseung Lee, Adnan Khan, Seri Hong, Sun Ha Jee, Youngja H Park
Identifying changes in serum metabolites during cerebral ischemia is an important approach for early diagnosis of thrombotic stroke. Herein, we highlight novel biomarkers for early diagnosis of patients at high risk of thrombotic stroke using high resolution metabolomics (HRM). In this retrospective cohort study, serum samples obtained from patients at risk of thrombotic stroke (n  =  62) and non-risk individuals (n  =  348) were tested using HRM, coupled with LC-MS/MS, to discriminate between metabolic profiles of control and stroke risk patients...
April 21, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28428689/experimental-validation-of-antidiabetic-potential-of-cayratia-trifolia-l-domin-an-indigenous-medicinal-plant
#2
Shahid Iqbal Mohammed, Narendra Subhash Salunkhe, Kishor Sukhlal Vishwakarma, Vijay Laxminarayan Maheshwari
The present study was undertaken to evaluate antidiabetic and antioxidant activities of Cayratia trifolia root extract against streptozotocin induced diabetes in experimental rats to scientifically validate its use against diabetes in some parts of India. Ethanolic extract, showing the highest activity in in vitro experiments, was prepared in saline and administered orally to streptozotocin induced albino Wistar diabetic rats for 21 days. Biochemical parameters liver and muscles glycogen and in vivo antioxidant activity in normal, diabetic control, standard (metformin) and treated animals were determined and compared...
June 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28425351/metabolic-changes-in-methomyl-poisoned-rats-treated-by-vitamin-e
#3
J Weng, B Cai, J Chen, B Chen, H Wu, C Wen, F Sun, L Hu, C Chen, X Wang, Z Wang
In this study, we developed a serum and urine metabolomic method based on gas chromatography-mass spectrometry (GC-MS) combination with biomedical results to evaluate the effect of vitamin E treatment on methomyl poisoning rats. The rats were divided into three groups: the control group, methomyl poisoning group, and vitamin E treatment group. Partial least squares discriminate analysis (PLS-DA) showed that methomyl poisoning induced metabolic perturbations. Compared to the control group, based on the urinary metabolomics data, the level of ribitol, l-proline, xylitol, hydrocinnamic acid, 11-cis-octadecenoic acid, octadecanoic acid, and hexadecanoic acid of methomyl poisoning group increased, while the level of 2,3,4-trihydroxybutyric acid, ethanimidic acid, pantothenic acid, and retinoic acid decreased...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28424186/circulating-concentrations-of-biomarkers-and-metabolites-related-to-vitamin-status-one-carbon-and-the-kynurenine-pathways-in-us-nordic-asian-and-australian-populations
#4
Øivind Midttun, Despoina Theofylaktopoulou, Adrian McCann, Anouar Fanidi, David C Muller, Klaus Meyer, Arve Ulvik, Wei Zheng, Xiao-Ou Shu, Yong-Bing Xiang, Ross Prentice, Cynthia A Thomson, Mary Pettinger, Graham G Giles, Allison Hodge, Qiuyin Cai, William J Blot, Jie Wu, Mikael Johansson, Johan Hultdin, Kjell Grankvist, Victoria L Stevens, Marjorie L McCullough, Stephanie J Weinstein, Demetrius Albanes, Arnulf Langhammer, Kristian Hveem, Marit Næss, Howard D Sesso, J Michael Gaziano, Julie E Buring, I-Min Lee, Gianluca Severi, Xuehong Zhang, Jiali Han, Meir J Stampfer, Stephanie A Smith-Warner, Anne Zeleniuch-Jacquotte, Loic le Marchand, Jian-Min Yuan, Lesley M Butler, Woon-Puay Koh, Renwei Wang, Yu-Tang Gao, Ulrika Ericson, Emily Sonestedt, Regina G Ziegler, Neal D Freedman, Kala Visvanathan, Miranda R Jones, Caroline Relton, Paul Brennan, Mattias Johansson, Per M Ueland
Background: Circulating concentrations of biomarkers that are related to vitamin status vary by factors such as diet, fortification, and supplement use. Published biomarker concentrations have also been influenced by the variation across laboratories, which complicates a comparison of results from different studies.Objective: We robustly and comprehensively assessed differences in biomarkers that are related to vitamin status across geographic regions.Design: The trial was a cross-sectional study in which we investigated 38 biomarkers that are related to vitamin status and one-carbon and tryptophan metabolism in serum and plasma from 5314 healthy control subjects representing 20 cohorts recruited from the United States, Nordic countries, Asia, and Australia, participating in the Lung Cancer Cohort Consortium...
April 19, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28423352/prospective-serum-metabolomic-profile-of-prostate-cancer-by-size-and-extent-of-primary-tumor
#5
Jiaqi Huang, Alison M Mondul, Stephanie J Weinstein, Edward D Karoly, Joshua N Sampson, Demetrius Albanes
Two recent investigations found serum lipid and energy metabolites related to aggressive prostate cancer up to 20 years prior to diagnosis. To elucidate whether those metabolomic profiles represent etiologic or tumor biomarker signals, we prospectively examined serum metabolites of prostate cancer cases by size and extent of primary tumors in a nested case-control analysis in the ATBC Study cohort that compared cases diagnosed with T2 (n = 71), T3 (n = 51), or T4 (n = 15) disease to controls (n = 200). Time from fasting serum collection to diagnosis averaged 10 years (range 1-20)...
April 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422378/cellular-retinoic-acid-bioavailability-in-various-pathologies-and-its-therapeutic-implication
#6
REVIEW
Makoto Osanai
Retinoic acid (RA), an active metabolite of vitamin A, is a critical signaling molecule in various cell types. We found that RA depletion caused by expression of the RA-metabolizing enzyme CYP26A1 promotes carcinogenesis, implicating CYP26A1 as a candidate oncogene. Several studies of CYP26s have suggested that the biological effect of RA on target cells is primarily determined by "cellular RA bioavailability", which is defined as the RA level in an individual cell, rather than by the serum concentration of RA...
April 19, 2017: Pathology International
https://www.readbyqxmd.com/read/28421317/effect-of-oral-carbohydrate-with-amino-acid-solution-on-serum-oxidative-anti-oxidative-status-in-healthy-volunteers
#7
Yasuo M Tsutsumi, Takuro Oyama, Nami Kakuta, Yousuke T Horikawa, Katsuyoshi Kume, Yoko Sakai, Rie Tsutsumi, Katsuya Tanaka
The aim of this work was to investigate the effect of oral carbohydrate with amino acid [oral nutritional supplement (ONS)] solution on oxidative stress in healthy persons. Fourteen healthy volunteers were segregated into control and ONS groups. Volunteers in the ONS group ingested 250 ml of Arginaid Water (Nestle Japan, Tokyo, Japan) in the evening before the experiment and at 7:00 am on the day of the experiment. Volunteers in the control group fasted after dinner and drank only water until 7:00 am on the day of the experiment...
April 18, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28421297/suppression-of-th1-differentiation-by-tryptophan-supplementation-in-vivo
#8
Tobias V Lanz, Simon Becker, Soumya R Mohapatra, Christiane A Opitz, Wolfgang Wick, Michael Platten
Metabolism of the essential amino acid tryptophan (trp) is a key endogenous immunosuppressive pathway restricting inflammatory responses. Tryptophan metabolites promote regulatory T cell (Treg) differentiation and suppress proinflammatory T helper cell (Th)1 and Th17 phenotypes. It has been shown that treatment with natural and synthetic tryptophan metabolites can suppress autoimmune neuroinflammation in preclinical animal models. Here, we tested if oral intake of tryptophan would increase immunosuppressive tryptophan metabolites and ameliorate autoimmune neuroinflammation as a safe approach to treat autoimmune disorders like multiple sclerosis (MS)...
April 18, 2017: Amino Acids
https://www.readbyqxmd.com/read/28420072/reduction-of-nitric-oxide-and-dna-rna-oxidation-products-are-associated-with-active-disease-in-systemic-lupus-erythematosus-patients
#9
T M V Iriyoda, N Stadtlober, M A B Lozovoy, F Delongui, N T Costa, E M V Reiche, I Dichi, A N C Simão
The aims of the present study were to evaluate biomarkers of oxidative and nitrosative stress in systemic lupus erythematosus (SLE) patients, in particular products of DNA/RNA oxidative damage and their correlation with disease activity. This study included 188 controls and 203 patients; 153 with inactive SLE (SLEDAI < 6) and 50 with active SLE (SLEDAI ≥ 6) without renal impairment. Oxidative stress was assessed by tert-butyl hydroperoxide-initiated by chemiluminescence, advanced oxidation protein products (AOPP), total radical-trapping antioxidant parameter (TRAP), nitric oxide metabolites (NOx), and DNA/RNA oxidation products...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28420061/metabolic-profiling-reveals-new-serum-biomarkers-of-lupus-nephritis
#10
J Li, X-W Xie, H Zhou, B Wang, M-J Zhang, F-Y Tang
Metabolomics has been applied to explore altered metabolite profiles in disease and identify unique metabolic signatures specific to certain pathologies. The aim of the current study is to characterize the metabolic profile of patients diagnosed with lupus nephritis (LN) and explore new insights into underlying disease processes. A metabolomic approach using ultra-high-performance liquid chromatography coupled with high-resolution mass spectrometry (UPLC-HRMS) was developed in serum samples from 32 LN patients, 30 idiopathic nephrotic syndrome (INS) patients and 28 healthy controls (HCs)...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28419560/fibroblast-growth-factor-23-concentration-in-dogs-with-chronic-kidney-disease
#11
L M Harjes, V J Parker, K Dembek, G S Young, L H Giovaninni, M M Kogika, D J Chew, R E Toribio
BACKGROUND: Chronic kidney disease (CKD) is associated with hyperphosphatemia, decreased vitamin D metabolite concentrations, and hyperparathyroidism. This syndrome is known as CKD-mineral bone disorder (CKD-MBD). Recently, it has been shown that an increase in fibroblast growth factor-23 (FGF-23) concentration is an early biomarker of CKD in people. It is an independent risk factor for both progression of renal disease and survival time in humans and cats with CKD. Information about FGF-23 in healthy dogs and those with CKD is lacking...
April 17, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28419111/time-resolved-and-label-free-monitoring-of-extracellular-metabolites-by-surface-enhanced-raman-spectroscopy
#12
Victoria Shalabaeva, Laura Lovato, Rosanna La Rocca, Gabriele C Messina, Michele Dipalo, Ermanno Miele, Michela Perrone, Francesco Gentile, Francesco De Angelis
Metabolomics is an emerging field of cell biology that aims at the comprehensive identification of metabolite levels in biological fluids or cells in a specific functional state. Currently, the major tools for determining metabolite concentrations are mass spectrometry coupled with chromatographic techniques and nuclear magnetic resonance, which are expensive, time consuming and destructive for the samples. Here, we report a time resolved approach to monitor metabolite dynamics in cell cultures, based on Surface Enhanced Raman Scattering (SERS)...
2017: PloS One
https://www.readbyqxmd.com/read/28418859/serum-metabolomics-differentiating-pancreatic-cancer-from-new-onset-diabetes
#13
Xiangyi He, Jie Zhong, Shuwei Wang, Yufen Zhou, Lei Wang, Yongping Zhang, Yaozong Yuan
To establish a screening strategy for pancreatic cancer (PC) based on new-onset diabetic mellitus (NO-DM), serum metabolomics analysis and a search for the metabolic pathways associated with PC related DM were performed. Serum samples from patients with NO-DM (n = 30) and patients with pancreatic cancer and NO-DM were examined by liquid chromatography-mass spectrometry. Data were analyzed using principal components analysis (PCA) and orthogonal projection to latent structures (OPLS) of the most significant metabolites...
March 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415762/metabonomics-studies-on-serum-and-urine-of-patients-with-breast-cancer-using-1h-nmr-spectroscopy
#14
Jianping Zhou, Yanxia Wang, Xinli Zhang
The aim of this study was to describe a metabolomic study of breast cancer using 1H-NMR combined with bioinformatics analysis. 1H-NMR spectroscopy combined with multi-variate pattern recognition analysis was used to cluster the groups (serum and urine samples from breast cancer patients and healthy controls) and establish a breast-cancer-specific metabolites phenotype. Orthogonalpartial least-squares discriminant analysis (OPLS-DA) was capable of distinguishing serum and urine samples from breast cancer patients and healthy controls and establishing a breast-cancer-specific metabolite profile...
March 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28413315/the-involvement-of-ginseng-berry-extract-in-blood-flow-via-regulation-of-blood-coagulation-in-rats-fed-a-high-fat-diet
#15
Min Hee Kim, Jongsung Lee, Sehyun Jung, Joo Wan Kim, Jae-Ho Shin, Hae-Jeung Lee
BACKGROUND: The present study investigated the effect of ginseng berry hot water extract (GBx) on blood flow via the regulation of lipid metabolites and blood coagulation in rats fed a high-fat diet (HFD). METHODS: Sixty rats were divided into five groups in descending order of body weight. Except for the control group, the other four groups were fed a HFD containing 45% kcal from fat for 11 wk without GBx. GBx groups were then additionally treated by gastric gavage with GBx dissolved in distilled water at 50 (GBx 50) mg/kg, 100 (GBx 100) mg/kg, or 150 (GBx 150) mg/kg body weight for 6 wk along with the HFD...
April 2017: Journal of Ginseng Research
https://www.readbyqxmd.com/read/28412461/effects-of-low-dose-aspirin-on-maternal-blood-pressure-and-vascular-function-in-an-experimental-model-of-gestational-hypertension
#16
Oluwatobiloba Osikoya, Paresh A Jaini, An Nguyen, Melissa Valdes, Styliani Goulopoulou
Daily intake of low-dose aspirin after 12weeks of gestation is currently recommended as a preventative intervention in pregnancies in high risk of developing preeclampsia. This recommendation is based on epidemiological evidence, whereas experimental studies investigating the exact mechanisms of aspirin action during pregnancy are lacking. We previously showed that treating pregnant rats with a synthetic mimetic of unmethylated CpG DNA (bacterial DNA) caused preeclampsia-like characteristics such as maternal hypertension and increased cyclooxygenase (COX) expression and activity...
April 12, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28411689/moutan-cortex-and-paeoniae-radix-rubra-reverse-high-fat-diet-induced-metabolic-disorder-and-restore-gut-microbiota-homeostasis
#17
Ling-Jun Zhong, Zhi-Sheng Xie, Hua Yang, Ping Li, Xiao-Jun Xu
The present study was designed to investigate the therapeutic effcts of Moutan Cortex (CM, root bark of Paeonia suffruticosa Andr) and Paeoniae Radix Rubra (PR, root of Paeonia veitchii Lynch) on metabolic disorders, focusing on the infuence of CM and PR on the obesity-related gut microbiota homeostasis. The diet-induced obese (DIO) mouse model was used to test the therapeutic effects of CM and PR. The mice were orally administered with CM and PR for 6 weeks, and oral glucose tolerance test (OGTT) and insulin tolerance test (ITT) were performed to evaluate the insulin sensitivity of the mice...
March 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28411687/oral-administration-of-red-ginseng-powder-fermented-with-probiotic-alleviates-the-severity-of-dextran-sulfate-sodium-induced-colitis-in-a-mouse-model
#18
Sun-Hee Jang, Jisang Park, Sae-Hae Kim, Kyung-Min Choi, Eun-Sil Ko, Jeong-Dan Cha, Young-Ran Lee, Hyonseok Jang, Yong-Suk Jang
Red ginseng is a well-known alternative medicine with anti-inflammatory activity. It exerts pharmacological effects through the transformation of saponin into metabolites by intestinal microbiota. Given that intestinal microflora vary among individuals, the pharmacological effects of red ginseng likely vary among individuals. In order to produce homogeneously effective red ginseng, we prepared probiotic-fermented red ginseng and evaluated its activity using a dextran sulfate sodium (DSS)-induced colitis model in mice...
March 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28411632/an-ultra-specific-and-sensitive-sandwich-elisa-for-imatinib-using-two-anti-imatinib-antibodies
#19
Tetsuya Saita, Yuta Yamamoto, Kazuhisa Hosoya, Yutaro Yamamoto, Sakiko Kimura, Yutaka Narisawa, Masashi Shin
The development of an immunoassay for a low-molecular-weight drug first requires the identification of specific antibodies that do not cross-react with the drug's metabolites. If two antibodies can simultaneously recognize the entire structure of the drug, we can then utilize them to establish an ultra-specific sandwich ELISA, free from interference due to the metabolic products of the drug. This paper reports an ultra-specific and sensitive sandwich ELISA for determination of the tyrosine kinase inhibitor imatinib using two anti-imatinib antibodies...
May 29, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28407784/relationships-between-gut-microbiota-plasma-metabolites-and-metabolic-syndrome-traits-in-the-metsim-cohort
#20
Elin Org, Yuna Blum, Silva Kasela, Margarete Mehrabian, Johanna Kuusisto, Antti J Kangas, Pasi Soininen, Zeneng Wang, Mika Ala-Korpela, Stanley L Hazen, Markku Laakso, Aldons J Lusis
BACKGROUND: The gut microbiome is a complex and metabolically active community that directly influences host phenotypes. In this study, we profile gut microbiota using 16S rRNA gene sequencing in 531 well-phenotyped Finnish men from the Metabolic Syndrome In Men (METSIM) study. RESULTS: We investigate gut microbiota relationships with a variety of factors that have an impact on the development of metabolic and cardiovascular traits. We identify novel associations between gut microbiota and fasting serum levels of a number of metabolites, including fatty acids, amino acids, lipids, and glucose...
April 13, 2017: Genome Biology
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