Results 31 to 40 of about 1,025 (157)

Trace Elements Genetics: A Potential Role in Treatment‐Resistant Major Psychoses and Related Traits?

American Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT Trace elements are pivotal to key biological processes, with possible effects on psychopathology. We investigated the hypothesis of shared genetic factors between trace elements levels, treatment resistance and related traits. We used genome‐wide summary statistics for trace elements blood concentration, treatment‐resistant depression (TRD ...
Chiara Fabbri, Alessandro Serretti, Marco Menchetti, Benedetta Vai, Francesco Benedetti, Lidia Fortaner‐Uyà, Concetta Crisafulli   +6 more
wiley   +1 more source

A dodecylamine derivative of cyanocobalamin potently inhibits the activities of cobalamin-dependent methylmalonyl-CoA mutase and methionine synthase of Caenorhabditis elegans

FEBS Open Bio, 2014
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.
Tomohiro Bito, Yukinori Yabuta, Tsuyoshi Ichiyanagi, Tsuyoshi Kawano, Fumio Watanabe   +4 more
doaj   +1 more source

Identification and quantitation of cobalamin and cobalamin analogues in human feces [PDF]

The American Journal of Clinical Nutrition, 2008
Cobalamin (vitamin B-12) and cobalamin analogues are present in human feces, but a complete identification has not been established, and the amounts present have not been determined.We aimed to develop a liquid chromatography-mass spectrometry method for cobalamin and cobalamin analogues and to identify and quantitiate the amounts present in human ...
Robert H, Allen, Sally P, Stabler
openaire   +2 more sources

Evaluating Red Patches and Burning Mouth Symptoms as Oral Biomarkers in Cobalamin Deficiency: A Comparative Study

Plasmatology
Background Vitamin B12 (cobalamin) deficiency can manifest through various nonspecific oral symptoms. Early diagnosis is crucial but challenging due to subtle and progressive clinical features.
Sanjay Chikkarasinakere Jogigowda MDS, Karthikeya Patil MDS, Varusha Sharon Christopher MDS, Namrata Suresh MDS, Shilpa Padar Shastry MDS, Vidya Gowdappa Doddawad MDS   +5 more
doaj   +1 more source

Structure of full-length cobalamin-dependent methionine synthase and cofactor loading captured in crystallo

Nature Communications, 2023
Cobalamin-dependent methionine synthase (MS) is a key enzyme in methionine and folate one-carbon metabolism. MS is a large multi-domain protein capable of binding and activating three substrates: homocysteine, folate, and S-adenosylmethionine for ...
Johnny Mendoza, Meredith Purchal, Kazuhiro Yamada, Markos Koutmos   +3 more
doaj   +1 more source

Relationships among nitrous oxide exposure, neurological injury and biomarkers

British Journal of Clinical Pharmacology, EarlyView.
Aims Recreational nitrous oxide (N2O) misuse is an increasing public health problem associated with functional cobalamin (B12) deficiency and severe neurological complications. Despite growing recognition of its harms, the dose–response relationship and clinical value of biomarkers remain unclear.
Laxna Bhujel, Angela L. Chiew, Bhashita Jagarlamudi, Pramod Chandru, Naren Gunja, Nancy Briggs, Betty S. Chan   +6 more
wiley   +1 more source

The relationship between exacerbated diabetic peripheral neuropathy and metformin treatment in type 2 diabetes mellitus

Scientific Reports, 2021
Metformin-treated diabetics (MTD) showed a decrease in cobalamin, a rise in homocysteine, and methylmalonic acid, leading to accentuated diabetic peripheral neuropathy (DPN). This study aimed to determine whether or not metformin is a risk factor for DPN.
Manal Mohammed Hashem, Ahmed Esmael, Abdelfattah Kasem Nassar, Mohammed El-Sherif   +3 more
doaj   +1 more source

Transcriptomic Profiling of SLC and ABC Transporters in the Human Term Placenta

Clinical Pharmacology &Therapeutics, EarlyView.
Solute carriers (SLC) and ATP‐binding cassette (ABC) transporters are essential for placental solute exchange and fetal protection, yet their transcriptomic profiles in the human placenta remain poorly characterized. Although fetal sex influences placental development and function, its impact on transporter expression is unclear.
Elijah Marsh Jung, Nicholas Ieronimakis, Bothaina Mousa, Emily D. Sheikh, Sarah E. Ligon, Joshua W. Monson, Jennifer R. Damicis, Hillary J. Kinsman, Lydia E. Bettridge, Samuel L.M. Arnold, Edward J. Kelly, Jashvant D. Unadkat, Joanne Wang   +12 more
wiley   +1 more source

Cobalamin coenzyme forms are not likely to be superior to cyano‐ and hydroxyl‐cobalamin in prevention or treatment of cobalamin deficiency [PDF]

Molecular Nutrition & Food Research, 2015
Methylcobalamin (MeCbl) and adenosylcobalamin (AdoCbl) are coenzymes for methionine synthase and methylmalonyl‐CoA mutase, respectively. Hydroxylcobalamin (HOCbl) and cyanocobalamin (CNCbl) are frequently used for supplementation. MeCbl and AdoCbl have recently emerged as alternative forms in supplements. In the light of metabolic transformation of Cbl
Obeid, Rima, Fedosov, Sergey N, Nexo, Ebba; id_orcid 0000-0001-9406-9081   +2 more
openaire   +3 more sources

Inherited metabolic epilepsies–established diseases, new approaches

Epilepsia Open, EarlyView.
Abstract Inherited metabolic epilepsies (IMEs) represent the inherited metabolic disorders (IMDs) in which epilepsy is a prevailing component, often determining other neurodevelopmental outcomes associated with the disorder. The different metabolic pathways affected by individual IMEs are the basis of their rarity and heterogeneity.
Itay Tokatly Latzer, Phillip L. Pearl
wiley   +1 more source