Human brain development starts in the embryonic period. Maternal preconception nutrition and nutrient availability to the embryo may influence brain development at this critical period following conception and early cellular differentiation, thereby ...
Jian Huang+14 more
doaj +1 more source
Acid zeta function and ajoint acid zeta function [PDF]
In this paper we set up the theory of acid zeta function and ajoint acid zeta function, based on the theory, we point out a reason to doubt the truth of the Riemann hypothesis and also as a consequence, we give out some new RH equivalences.
arxiv
One-carbon metabolites, B vitamins and associations with systemic inflammation and angiogenesis biomarkers among colorectal cancer patients:results from the ColoCare Study [PDF]
B-vitamins involved in one-carbon metabolism have been implicated in the development of inflammation- A nd angiogenesis-related chronic diseases, such as colorectal cancer.
Boehm, Juergen+26 more
core +1 more source
Dysbiosis of intestinal microbiota and metabolism caused by acute patulin exposure in mice
This study evaluated the effects of acute exposure to different doses of patulin on gut microbiota and metabolism. Key bacteria and metabolites affected by PAT in the small intestinal and colonic contents were identified. This helps us to understand the enterotoxicity mechanism of PAT.
Ting Zhang+9 more
wiley +1 more source
Is Amino-Acid Homochirality Due To Asymmetric Photolysis In Space? [PDF]
Amino acids occurring in proteins are, with rare exceptions, exclusively of the L-configuration. Among the many scenarios put forward to explain the origin of this chiral homogeneity (i.e., homochirality), one involves the asymmetric photolysis of amino acids present in space, triggered by circularly polarized UV radiation.
arxiv
Catalytic Activities of Pyridoxal Analogues. I. The Catalytic Effects of Pyridoxal, Pyridoxal Methochloride, and Pyridoxal N-Oxide on the Racemization of
Abstract An improved method for the syntheses of pyridoxal methochloride (1) and pyridoxal N-oxide (5) was investigated. Further, the catalytic activities of pyridoxal, 1, and 5 on the racemization of l-glutamic acid in the presence of cupric ions were studied.
Makoto Ando, Sakae Emoto
openaire +2 more sources
Low vitamin B12 blood levels in sickle cell disease: Data from a large cohort study in Tanzania
Sickle cell disease (SCD) is an inherited haemoglobinopathy that impairs the longevity of red blood cells and leads to chronic haemolytic anaemia. Consequently, there is a compensatory increase in the rate of erythropoiesis that increases the demand for essential micronutrients. In our cohort of SCD patients, we measured various micronutrients required
Eka Patricia Kisali+4 more
wiley +1 more source
Are Strong Bronsted Acids Necessarily Strong Lewis Acids? [PDF]
The Broensted and Lowry acid base theory is based on the capacity of proton donation or acceptance (in the presence or absence of a solvent) whereas the Lewis acid base theory is based on the propensity of electron pair acceptance or donation. We explore through DFT calculation the obvious question whether these two theories are in conformity with each
arxiv
Background Many countries have already banned the use of antibiotics in animal husbandry, making it extremely difficult to maintain animal health in livestock breeding.
Jinping Shi+12 more
doaj +1 more source
The Factors of the Classification of Protein Amino Acids [PDF]
In this work it is shown that three pairs of the factors appear to be the key, i.e. main factors of a natural classification of protein (canonical) amino acids within the amino acid (genetic) code. First pair: the factors of the habit of an amino acid molecule (size and polarity).
arxiv