Results 51 to 60 of about 1,982 (213)

The coefficient of cyclic variation: a novel statistic to measure the magnitude of cyclic variation. [PDF]

open access: yes, 2014
BACKGROUND: PERIODIC OR CYCLIC DATA OF KNOWN PERIODICITY ARE FREQUENTLY ENCOUNTERED IN EPIDEMIOLOGICAL AND BIOMEDICAL RESEARCH: for instance, seasonality provides a useful experiment of nature while diurnal rhythms play an important role in endocrine ...
Fulford, Anthony Jc
core   +2 more sources

Development and validation of an LC-MS/MS method for determination of B vitamins and some its derivatives in whole blood.

open access: yesPLoS ONE, 2022
Obligate symbiotic bacteria associated with the insects feeding exclusively on vertebrate blood are supposed to complement B vitamins presumably lacking in their diet.
David Kahoun   +6 more
doaj   +1 more source

Simultaneous Fluorometric Resolution of Pyridoxal, Pyridoxamine and 4-Pyridoxic Acid Using Chemometric Methods

open access: yesAnalytical Sciences, 2007
An alternatively minimizing covariant matrix error (AMCME) algorithm, newly proposed by the present authors, was applied to the simultaneous fluorometric determination of pyridoxal, pyridoxamine and 4-pyridoxic acid without loss of sensitivity. The experimental results illustrate that the profiles of spectra and concentration can be accurately resolved
Cui-Yun, Mo, Yu-Zhen, Cao
openaire   +3 more sources

Metabolome response to temperature-induced virulence gene expression in two genotypes of pathogenic Vibrio parahaemolyticus [PDF]

open access: yes, 2016
Relative concentration of metabolites identified in Vibrio parahaemolyticus ATCC17802. (XLSX 113 kb)
Bo Feng   +4 more
core   +3 more sources

Serum and urine metabolomic profiling of newly diagnosed treatment-naïve inflammatory bowel disease patients [PDF]

open access: yes, 2023
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMBackground and Aims: Inflammatory bowel disease (IBD) is a ...
Aldars García, Laila   +6 more
core   +1 more source

Therapeutic Effect and Mechanism of Si-Miao-Yong-An-Tang on Thromboangiitis Obliterans Based on the Urine Metabolomics Approach

open access: yesFrontiers in Pharmacology, 2022
Si-Miao-Yong-An-Tang (SMYAT) is a classic prescription for the treatment of thromboangiitis obliterans (TAO). However, the effect and mechanism are still unclear.
Hui-Yu Li   +10 more
doaj   +1 more source

Electrochemical Analysis on Compounds of the Vitamin B6 Family Using Glassy Carbon Electrodes

open access: yesInternational Journal of Electrochemical Science, 2012
The electrochemical reduction of vitamin B6 group and related compounds has been performed at pH neutral using glassy carbon electrodes. Irreversible bi- or tetra-electronic processes controlled by diffusion on the top of the wave are observed for these ...
J. Gonzalez-Rodriguez   +3 more
doaj   +1 more source

Maternal nutritional status, C1 metabolism and offspring DNA methylation: a review of current evidence in human subjects. [PDF]

open access: yes, 2011
: Evidence is growing for the long-term effects of environmental factors during early-life on later disease susceptibility. It is believed that epigenetic mechanisms (changes in gene function not mediated by DNA sequence alteration), particularly DNA ...
Cox, SE   +4 more
core   +4 more sources

Metabonomic Profiling Analyses Reveal ANS Upregulation to Enhance the Flavonoid Pathway of Purple-Fleshed Sweet Potato Storage Root in Response to Deep Shading

open access: yesAgronomy, 2021
Intercropping, as a common worldwide cultivation pattern, provides opportunities for sustainable agriculture with fuller use of light, temperature and land resources and greater yield per unit of land.
Ying He   +5 more
doaj   +1 more source

Association of Markers of Inflammation, the Kynurenine Pathway and B Vitamins with Age and Mortality, and a Signature of Inflammaging [PDF]

open access: yes, 2021
Under embargo until: 2022-06-12Background Inflammation is a key feature of aging. We aimed to (i) investigate the association of 34 blood markers potentially involved in inflammatory processes with age and mortality and (ii) develop a signature of ...
Dugué, Pierre-Antoine   +17 more
core   +1 more source

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