Results 31 to 40 of about 83,665 (181)
, 2018 The biosynthesis of B12, involving up to 30 different enzyme-mediated steps, only occurs in bacteria. Thus, most eukaryotes require an external source of B12, and yet the vitamin appears to have only two functions in eukaryotes: as a cofactor for the enzymes methionine synthase and methylmalonylCoA mutase.
Smith, A. David +2 more
openaire +6 more sources
Trends in Pediatrics, 2022 Objective: Syncope is a frequent reason for referral to pediatric cardiology clinics. Vitamin B12 deficiency is frequently diagnosed in pediatric patients.
Süleyman Sunkak, Mustafa Argun
doaj +1 more source
Evaluation of vitamin B12 monitoring in patients on metformin in urban ambulatory care settings
Pharmacy Practice, 2019 Background: Previous studies linked metformin use to vitamin B12 deficiency and demonstrated that the prevalence of vitamin B12 monitoring remains low. Objective: This study aimed to assess the occurrence of monitoring vitamin B12 levels in a diverse ...
Longo SL +5 more
doaj +1 more source
Serum vitamin B12 associated with vitamin D/25(OH)D in women with recurrent aphthous stomatitis.
Journal of Oral Research, 2020 Vitamin B12 and Vitamin D deficiency may contribute to recurrent aphthous stomatitis (RAS). Current studies have showed vitamin B12 to be associated with vitamin D in women, however no study has assessed vitamin B12 associated with vitamin D/25(OH)D in ...
Hendri Susanto +5 more
doaj +1 more source
Pythonic Black-box Electronic Structure Tool (PyBEST). An open-source Python platform for electronic structure calculations at the interface between chemistry and physics [PDF]
, 2020 Pythonic Black-box Electronic Structure Tool (PyBEST) represents a fully-fledged modern electronic structure software package developed at Nicolaus Copernicus University in Toru\'n. The package provides an efficient and reliable platform for electronic structure calculations at the interface between chemistry and physics using unique electronic ...
arxiv +1 more source
Influence of vitamin B12 and light on the formation of chlorosomes in green- and brown-colored Chlorobium species [PDF]
, 1993 The specific Bchl a and c content of the vitamin B12-dependent Chlorobium limicola strain 1230 decreased strongly under vitamin B12 limitation. In comparison to a regularly grown culture (20 g vitamin B12/l) the specific Bchl c content of a B12-limited ...
Fischer, Ulrich +3 more
core +1 more source
Cochrane Database of Systematic Reviews, 2003 An association between neuropsychiatric disorders and vitamin B12 deficiency has been recognized since 1849 when pernicious anaemia was first described. It has been suggested that deficiency of vitamin B12 might contribute to age-associated cognitive impairment. Low serum vitamin B12 concentrations are found in more than 10% of older people.
Malouf, R, Areosa Sastre, A
openaire +5 more sources
Associations of genetically predicted vitamin B12 status across the pohenome [PDF]
, 2022 Variation in vitamin B12 levels has been associated with a range of diseases across the life-course, the causal nature of which remains elusive. We aimed to interrogate genetically predicted vitamin B12 status in relation to a plethora of clinical ...
Ahmadi, KR +7 more
core +1 more source
Dietary Supplements and Nutraceuticals Under Investigation for COVID-19 Prevention and Treatment [PDF]
, 2021 Coronavirus disease 2019 (COVID-19) has caused global disruption and a significant loss of life. Existing treatments that can be repurposed as prophylactic and therapeutic agents could reduce the pandemic's devastation. Emerging evidence of potential applications in other therapeutic contexts has led to the investigation of dietary supplements and ...
arxiv +1 more source
Journal of Applied Hematology, 2018 Vitamin B12 is essential for DNA and RNA synthesis. Vitamin B12 deficiency usually occurs in infants who are exclusively breastfed born to Vitamin B12-deficient mothers.
K Jagadish Kumar +3 more
doaj +1 more source