Results 101 to 110 of about 687,861 (355)

Cathode Materials for Proton Exchange Membrane Fuel Cells: From Metal and Metal Composite Catalysts to Carbon‐Supported Hybrids in Oxygen Reduction Reaction

ChemElectroChem, EarlyView.
This review highlights recent progress in the development of electrocatalysts for the oxygen reduction reaction in proton exchange membrane fuel cells (PEMFCs). Particular focus is given to structure–activity relationships, active site identification, and the role of noble and non‐noble metals, with insights into synthetic strategies and performance in
Claudia Garcés‐Barría, Daniel Cáceres‐Díaz, Javiera Torres‐Fernández, Tatiana M. Bustamante, Elizabeth Elgueta, Felipe Sanhueza   +5 more
wiley   +1 more source

B12 vitamins (cobalamins). 2. Neutral, basic and acidic cobalamins [PDF]

, 1952
E. Lester Smith, S. Ball, Deborah Ireland   +2 more
openalex   +1 more source

Human gut Bacteroides capture vitamin B12 via cell surface-exposed lipoproteins

eLife, 2018
Human gut Bacteroides use surface-exposed lipoproteins to bind and metabolize complex polysaccharides. Although vitamins and other nutrients are also essential for commensal fitness, much less is known about how commensal bacteria compete with each other
A. Wexler, W. B. Schofield, P. Degnan, E. Folta-Stogniew, N. A. Barry, A. Goodman   +5 more
semanticscholar   +1 more source

B12‐Cofactor Inactivation by Cobalt to Rhodium Mutation in Methylrhodibalamin: An Antivitamin B12 and Antibiotic

ChemistryEurope, EarlyView.
Replacement of cobalt in the organometallic B12‐cofactor methylcobalamin (MeCbl) by rhodium furnishes a structural mimic with a significantly stronger metal–carbon bond. This synthetically challenging formal metal‐mutation converts the naturally optimized biological methyl‐transfer catalyst MeCbl into a designed antivitamin B12, an inactivated B12 ...
Florian J. Widner, Klaus Wurst, Markus Ruetz, Christoph Kieninger, Christoph Kreutz, Michael D. Paxhia, Evelyne Deery, Martin J. Warren, Bernhard Kräutler   +8 more
wiley   +1 more source

Onset of Mania by Vitamin B12 Injection in a 52-Year Old Patient with Refractory and Resistant Depression

Journal of Nutrition and Food Security, 2023
Vitamin B12 affects and modify the function of multiple organ systems. Its deficiency may cause psychiatric symptoms in addition to hematologic, gastrointestinal, and neurologic manifestations.
Valentina Artoonian, Vajiheh Aghamollaii, Azadeh Nadjarzadeh, Reza Bidaki   +3 more
doaj  

An update on vitamin B12-related gene polymorphisms and B12 status

Genes & Nutrition, 2018
Vitamin B12 is an essential micronutrient in humans needed for health maintenance. Deficiency of vitamin B12 has been linked to dietary, environmental and genetic factors. Evidence for the genetic basis of vitamin B12 status is poorly understood. However,
S. Surendran, A. Adaikalakoteswari, A. Adaikalakoteswari, P. Saravanan, P. Saravanan, I. A. Shatwaan, J. Lovegrove, K. S. Vimaleswaran   +7 more
semanticscholar   +1 more source

Folinic Acid Prophylaxis and Dose Adjustments Enable Safe Treatment with Pemetrexed in Patients with Renal Impairment

Clinical Pharmacology &Therapeutics, EarlyView.
Pemetrexed is a cornerstone in chemo(immunotherapy) of non‐small cell lung cancer and mesothelioma; however, it is contraindicated in patients with renal impairment due to severe toxicity concerns. Therefore, a large proportion of patients is withheld from effective chemo(immunotherapy).
Nikki de Rouw, Leila‐Sophie Otten, Mart P. Kicken, Berber Piet, Bonne Biesma, Bianca van Veggel, Christi M.J. Steendam, Ben van den Borne, Lizza E.L. Hendriks, Sander Croes, Anne‐Marie C. Dingemans, Daphne W. Dumoulin, Ron H.J. Mathijssen, Jacobus A. Burgers, Alwin D.R. Huitema, Hieronymus J. Derijks, Maarten J. Deenen, Michel M. van den Heuvel, Rob ter Heine   +18 more
wiley   +1 more source

Investigating the mechanisms of capsicum in age‐related hearing loss: Based on network pharmacology

Eye &ENT Research, EarlyView.
Abstract Background To explore the material basis and action mechanism of the chemical component gene of pepper on presbycusis, and to provide a reference for the traditional Chinese medicine treatment of age‐related hearing loss (ARHL). Methods The chemical composition and action targets of traditional Chinese medicine flavor of pepper were searched ...
Yan Wang, Xiaoyu Song, Fengxin Yang, Huhuifen He, Kun Zhao, Jingjing Qiu, Limei Cui, Qiang Zhang, Limei Liu, Yan Sun   +9 more
wiley   +1 more source

Folic Acid and Vitamin B12 Supplementation and the Risk of Cancer: Long-term Follow-up of the B Vitamins for the Prevention of Osteoporotic Fractures (B-PROOF) Trial

Cancer Epidemiology, Biomarkers and Prevention, 2018
Background: Folic acid and vitamin B12 play key roles in one-carbon metabolism. Disruption of one-carbon metabolism may be involved in the risk of cancer.
S. Oliai Araghi, J. K. Kiefte-de Jong, S. V. van Dijk, K. Swart, H. V. van Laarhoven, N. V. van Schoor, L. D. de Groot, V. Lemmens, B. Stricker, A. Uitterlinden, Nathalie van der Velde   +10 more
semanticscholar   +1 more source

N‐terminal pro‐brain natriuretic peptide and cardiorenal outcome in patients with anaemia in chronic kidney disease

ESC Heart Failure, Volume 12, Issue 2, Page 848-858, April 2025.
Abstract Aims Blood levels of N‐terminal pro‐brain natriuretic peptide (NT‐proBNP) may be modified by low renal clearance and anaemia. The aim of this study was to investigate the impact of the blood NT‐proBNP level on cardiovascular and renal outcomes in patients with these two manifestations.
Hiroshi Nishi, Masaomi Nangaku, Tadashi Sofue, Tatsuo Kagimura, Ichiei Narita   +4 more
wiley   +1 more source