Results 61 to 70 of about 39,443 (213)

H2‐dependent modulation of tetrahydromethanopterin S‐methyltransferase (Mtr complex) activity by the small protein MtrR in Methanosarcina mazei

The FEBS Journal, EarlyView.
Small protein MtrR is a regulator of the Mtr methyltransferase complex in Methanosarcina mazei. It binds specifically to the MtrA subunit and modulates Mtr activity in response to hydrogen (H2) availability. Deleting mtrR impairs growth in the presence but not absence of H2, indicating its role in directing methyl transfer toward an energy‐conserving ...
Tim Habenicht, Bjarne Hastedt, Liam Cassidy, Claudia Kießling, Andreas Tholey, Jan M. Schuller, Ruth A. Schmitz   +6 more
wiley   +1 more source

Recent advances of emergent extraction technologies to enhance bioactive compounds extraction of microalgae—An overview towards application in cosmetics

International Journal of Cosmetic Science, EarlyView.
Microalgae extracts show immense potential in cosmetics for their bioactivities; emerging extraction techniques enhance bioactive compound yield from microalgae. Abstract Microalgae have attracted significant interest in numerous sectors, particularly in the cosmetic industries, owing to their rich composition of bioactive compounds. This paper aims to
Alireza Mousakhani Ganjeh, Lucília da P. da Silva, Carlos A. Pinto, Rosário Martins, Alexandra P. Marques, Jorge A. Saraiva   +5 more
wiley   +1 more source

Serum Cobalamin and Methylmalonic Acid Concentrations in Hyperthyroid Cats Before and After Radioiodine Treatment

Journal of Veterinary Internal Medicine, 2016
Background Hyperthyroidism, the most common endocrine disorder in cats, has been associated with low serum cobalamin concentrations. Whether this is a functional cobalamin deficiency of clinical importance has not been assessed.
B.M. Geesaman, W.H. Whitehouse, K.R. Viviano   +2 more
doaj   +1 more source

Neurological disorders in vitamin B12 deficiency [PDF]

Терапевтический архив, 2019
The review discusses thesteps of vitamin B12 metabolism and its role in maintaining of neurological functions. The term "vitamin B12 (cobalamin)" refers to several substances (cobalamins) of a very similar structure. Cobalamin enters the body with animal
Ch S Pavlov, I V Damulin, Yu O Shulpekova, E A Andreev   +3 more
doaj   +1 more source

14C-Cobalamin Absorption from Endogenously Labeled Chicken Eggs Assessed in Humans Using Accelerator Mass Spectrometry. [PDF]

, 2019
Traditionally, the bioavailability of vitamin B-12 (B12) from in vivo labeled foods was determined by labeling the vitamin with radiocobalt (57Co, 58Co or 60Co).
Allen, Lindsay H, Buchholz, Bruce A, Calvert, Christopher C, Garrod, Marjorie G, Green, Ralph, Miller, Joshua W, Rossow, Heidi A   +6 more
core   +2 more sources

Unexplained Elevated Vitamin B12: Consider Macro‐B12

International Journal of Laboratory Hematology, EarlyView.
ABSTRACT Introduction Elevated vitamin B12 concentration can be caused by supplementation, liver disease, kidney disease, or myeloid malignancies. Persistent, unexplained elevations of vitamin B12 can raise concern among patients and may lead to invasive diagnostic procedures, including bone marrow biopsy.
Evelien G. E. Hurkmans, Ruben Deneer, Marten R. Nijziel, Volkher Scharnhorst   +3 more
wiley   +1 more source

Whole-Blood Taurine Concentrations in Cats With Intestinal Disease [PDF]

, 2017
BackgroundIncreased delivery of taurine-conjugated bile acids to the distal bowel can lead to dysbiosis resulting in colitis in mouse models of inflammatory bowel disease.
Awwad, Backus, Backus, Devkota, Duboc, Heinze, Hickman, Hickman, Huxtable, Jacobs, Jergens, Kim, Laflamme, NRC, Rau, Schuller-Levis, Schuller-Levis, Stratton-Phelps, Sugano, Testa, Theisen, Vrieze, Zhang   +22 more
core   +4 more sources

Synergistic Benefits of Butyric Acid and Resistant Potato Starch on Growth and Gut Health in Weaned Pigs

Journal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT Newly‐weaned piglets face challenges such as reduced feed intake, impaired gut function, and susceptibility to post‐weaning diarrhoea, increasing the need for dietary strategies that support gut health and growth. This study investigated the effects of dietary supplementation with butyric acid (BA), resistant potato starch (PS), and their ...
Kathryn Ruth Connolly, Torres Sweeney, John V. O'Doherty   +2 more
wiley   +1 more source

Cobalamin Malabsorption due to a Dysfunctional Intrinsic Factor

Canadian Journal of Gastroenterology, 1989
An 18-year-old French Canadian student presenting with a severe normocytic anemia, had undetectable serum cobalamin but normal gastric acidity and no evidence of generalized malabsorption. The gastric juice contained a normal quantity of intrinsic factor.
Jeanne Drouin, Nadia Mikhael
doaj   +1 more source

A double-blind, randomized, comparative study of the use of a combination of uridine triphosphate trisodium, cytidine monophosphate disodium, and hydroxocobalamin, versus isolated treatment with hydroxocobalamin, in patients presenting with compressive neuralgias [PDF]

, 2017
CONTEXT: This paper reports on the results of treatment of compressive neuralgia using a combination of nucleotides (uridine triphosphate trisodium [UTP] and cytidine monophosphate disodium [CMP]) and vitamin B(12).
Buchman, Luiz, Geller, Mauro, Goldberg, Henrique, Goldberg, Stephanie Wrobel, Mezitis, Spyros GE, Mibielli, Marco Antonio, Nunes, Carlos Pereira, Oliveria, Lisa, Rzetelna, Helio, Wajnsztajn, Fernanda   +9 more
core   +2 more sources