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[Current aspects of physiology and physiopathology of cyanocobalamin metabolism].
V Fica et al.
Fiziologia normala si patologica, 17(4), 301-312 (1971-07-01)
Sharmistha Sinha et al.
Journal of molecular biology, 426(12), 2328-2345 (2014-04-22)
Bacterial microcompartments (MCPs) are the simplest organelles known. They function to enhance metabolic pathways by confining several related enzymes inside an all-protein envelope called the shell. In this study, we investigated the factors that govern MCP assembly by performing scanning
J Efraim Oosterink et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 998-999, 106-113 (2015-07-22)
Methionine, homocysteine, vitamins B6, B12, B9, and their metabolites are crucial co-factors and substrates for many basic biological pathways including one-carbon metabolism, and they are particularly important for brain function and development and epigenetic mechanisms. These are essential nutrients that
L Masucci et al.
Ontario health technology assessment series, 13(24), 1-24 (2014-01-01)
Vitamin B12 deficiency can lead to adverse health effects such as anemia and, in some cases, permanent neurologic damage. In Canada, patients with vitamin B12 deficiency are typically given intramuscular injections, which incur considerable cost and inconvenience. The clinical evidence-based
Settimio Pacelli et al.
International journal of biological macromolecules, 72, 1335-1342 (2014-12-03)
In this work, a natural polysaccharide gellan gum (GG) has been modified with methacrylic groups (GG-MA) and combined with polyethylene glycol dimethacrylate (PEG-DMA) in order to create novel injectable hydrogels that can be easily delivered through a needle and photocross-linked
Quantitative hopanoid analysis enables robust pattern detection and comparison between laboratories.
C-H Wu et al.
Geobiology, 13(4), 391-407 (2015-04-14)
Hopanoids are steroid-like lipids from the isoprenoid family that are produced primarily by bacteria. Hopanes, molecular fossils of hopanoids, offer the potential to provide insight into environmental transitions on the early Earth, if their sources and biological functions can be
Jinju Jeong et al.
BMB reports, 46(3), 169-174 (2013-03-27)
The human B(12) trafficking chaperone hCblC is well conserved in mammals and non-mammalian eukaryotes. However, the C-terminal ~40 amino acids of hCblC vary significantly and are predicted to be deleted by alternative splicing of the encoding gene. In this study
Niels Grarup et al.
PLoS genetics, 9(6), e1003530-e1003530 (2013-06-12)
Genome-wide association studies have mainly relied on common HapMap sequence variations. Recently, sequencing approaches have allowed analysis of low frequency and rare variants in conjunction with common variants, thereby improving the search for functional variants and thus the understanding of
Sachchida Nand Pandey et al.
Molecules (Basel, Switzerland), 20(5), 8304-8315 (2015-05-27)
Facioscapulohumeral muscular dystrophy (FSHD) is believed to be caused by aberrant expression of double homeobox 4 (DUX4) due to epigenetic changes of the D4Z4 region at chromosome 4q35. Detecting DUX4 is challenging due to its stochastic expression pattern and low
Giuseppe Scalabrino et al.
Clinical chemistry and laboratory medicine, 51(3), 601-606 (2012-11-28)
The pathogenesis of cobalamin (Cbl)-deficient (Cbl-D) neuropathy and the role of normal prions (PrPcs) in myelin maintenance are both subjects of debate. We have demonstrated that Cbl deficiency damages myelin by increasing tumor necrosis factor (TNF)-α, and decreasing epidermal growth
H Zhou et al.
Minerva medica, 106(4), 215-219 (2015-09-30)
Comparative analysis of the effect of antiepileptic drugs on the epileptic (tonic clonic seizure type) patient's serum folate and vitamin B12 concentrations. Consecutively, 84 cases from September 2010 to September 2014 from the Department of Internal Medicine of our hospital
Martin Bommer et al.
Science (New York, N.Y.), 346(6208), 455-458 (2014-10-04)
Organohalide-respiring microorganisms can use a variety of persistent pollutants, including trichloroethene (TCE), as terminal electron acceptors. The final two-electron transfer step in organohalide respiration is catalyzed by reductive dehalogenases. Here we report the x-ray crystal structure of PceA, an archetypal
Amrita Khaire et al.
Reproduction, fertility, and development, 27(2), 341-350 (2013-12-21)
Maternal vitamin B12 deficiency leads to an adverse pregnancy outcome and increases the risk for developing diabetes and metabolic syndrome in mothers in later life. Our earlier studies have demonstrated that vitamin B12 and n-3 polyunsaturated fatty acids (PUFA) are
Geoffrey de Couto et al.
The Journal of clinical investigation, 125(8), 3147-3162 (2015-07-28)
Ischemic injury in the heart induces an inflammatory cascade that both repairs damage and exacerbates scar tissue formation. Cardiosphere-derived cells (CDCs) are a stem-like population that is derived ex vivo from cardiac biopsies; they confer both cardioprotection and regeneration in
Angelo Macri et al.
Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 253(3), 425-430 (2014-11-16)
Increased levels of oxidative stress have been seen in animal models of dry eye and in the conjunctival epithelial cells of patients with Sjögren's syndrome. The aims of this study were to compare the levels of oxidative stress in patients
Roy Lardenoije et al.
Progress in neurobiology, 131, 21-64 (2015-06-15)
Epigenetics is a quickly growing field encompassing mechanisms regulating gene expression that do not involve changes in the genotype. Epigenetics is of increasing relevance to neuroscience, with epigenetic mechanisms being implicated in brain development and neuronal differentiation, as well as
P Satora et al.
Journal of applied microbiology, 119(3), 736-743 (2015-07-15)
To investigate the synthesis of selected bioactive compounds in various strains belonging to the Arthrospira genus. The synthesis of vitamin C, polyphenols, vitamin B12, fatty acids and selected volatile compounds (acetone and acetaldehyde) was investigated in six strains belonging to
Tomohiro Bito et al.
FEBS open bio, 4, 722-729 (2014-08-28)
In this study, we showed that cyanocobalamin dodecylamine, a ribose 5'-carbamate derivative of cyanocobalamin, was absorbed and accumulated to significant levels by Caenorhabditis elegans and was not further metabolized. The levels of methylmalonic acid and homocysteine, which serve as indicators
Dezhi Kang et al.
Science translational medicine, 7(293), 293ra103-293ra103 (2015-06-26)
Various diseases have been linked to the human microbiota, but the underlying molecular mechanisms of the microbiota in disease pathogenesis are often poorly understood. Using acne as a disease model, we aimed to understand the molecular response of the skin
Managing severe anemia when the patient is a Jehovah's Witness.
Shannon Lynn et al.
JAAPA : official journal of the American Academy of Physician Assistants, 26(4), 24-24 (2013-04-25)
Jae Hoon Moon et al.
Stroke, 46(4), 1024-1030 (2015-03-05)
We investigated the association between cardiovascular risk factors, including carotid intima-media thickness (CIMT), and future risk of mild cognitive impairment (MCI) and dementia in elderly subjects. We conducted a population-based prospective study as a part of the Korean Longitudinal Study
Katsumi Shibata et al.
Bioscience, biotechnology, and biochemistry, 78(12), 2102-2109 (2014-08-15)
We previously reported that mild food restriction induces a reduction in tryptophan-nicotinamide conversion, which helps to explain why death secondary to pellagra is pandemic during the hungry season. In this study, we investigated the levels of B-group vitamins in the
Nor A Mohd-Shukri et al.
Nutrients, 7(10), 8431-8443 (2015-10-13)
The health behaviours of pregnant women with very severe obesity are not known, though these women are at high risk of pregnancy complications. We carried out a prospective case-control study including 148 very severely obese (BMI >40 kg/m²) and 93
Bamini Gopinath et al.
The American journal of clinical nutrition, 98(1), 129-135 (2013-05-03)
Epidemiologic evidence of a relation between serum total homocysteine (tHcy), vitamin B-12, and folate and age-related macular degeneration (AMD) is inconsistent and unresolved. In this cohort study, we aimed to investigate associations between intakes and serum concentrations of folate and
Nisha G Kemse et al.
PloS one, 9(11), e111902-e111902 (2014-11-19)
Our earlier studies have highlighted that an altered one carbon metabolism (vitamin B12, folic acid, and docosahexaenoic acid) is associated with preeclampsia. Preeclampsia is also known to be associated with oxidative stress and inflammation. The current study examines whether maternal
Brad Hine et al.
Journal of cellular biochemistry, 115(11), 1948-1954 (2014-06-11)
Intestinal uptake of vitamin B12 (hereafter B12) is impaired in a significant proportion of the human population. This impairment is due to inherited or acquired defects in the expression or function of proteins involved in the binding of diet-derived B12
Ontario health technology assessment series, 13(23), 1-45 (2014-01-01)
More than 2.9 million serum vitamin B12 tests were performed in 2010 in Ontario at a cost of $40 million. Vitamin B12 deficiency has been associated with a few neurocognitive disorders. To determine the clinical utility of B12 testing in
Azita Hekmatdoost et al.
PloS one, 10(12), e0143569-e0143569 (2015-12-03)
To determine whether 5-methylenetetrahydrofolate (MTHF) is more effective than folic acid supplementation in treatment of recurrent abortion in different MTHFR gene C677T and A1298C polymorphisms. A randomized, double blind, placebo-controlled trial conducted April 2011-September 2014 in recurrent abortion clinics in
Jean-Louis Guéant et al.
Biochimie, 95(5), 1033-1040 (2013-02-19)
Vitamin B12 (cobalamin, cbl) is a cofactor of methionine synthase (MTR) in the synthesis of methionine, the precursor of the universal methyl donor S-Adenosylmethionine (SAM), which is involved in epigenomic regulatory mechanisms. We have established a neuronal cell model with
Rony Dev et al.
Cancer, 120(10), 1586-1593 (2014-03-01)
A high frequency of hypogonadism has been reported in male patients with advanced cancer. The current study was performed to evaluate the association between low testosterone levels, symptom burden, and survival in male patients with cancer. Of 131 consecutive male
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