ライフサイエンスコーパス: vitamin B12

1 ls for investigating the biological roles of vitamin B12 .

2 materials, potential new dietary sources of vitamin B12.

3 ssociated with reduced levels of circulating vitamin B12.

4 c acid and thus may lead to malabsorption of vitamin B12.

5 bdate, is approximately 10-fold smaller than vitamin B12.

6 ansporters for diverse iron siderophores and vitamin B12.

7 activated CORM) to the 5'-OH ribose group of vitamin B12.

8 N2O can be rescued by addition of exogenous vitamin B12.

9 B6 while FUT2 interferes with absorption of vitamin B12.

10 e intakes of dietary folate, vitamin B6, and vitamin B12.

11 folic acid, 50 mg of vitamin B6, and 1 mg of vitamin B12.

12 e of Gram-negative bacteria which transports vitamin B12.

13 ented with oral folic acid and intramuscular vitamin B12.

14 ein and the absorption of iron, calcium, and vitamin B12.

15 or studies of catalysis analogous to that of vitamin B12.

16 ral density, serum creatinine, magnesium, or vitamin B12.

17 riority to the MBA in determining the active vitamin B12.

18 atment (folic acid 0.8 mg, vitamin B6 20 mg, vitamin B12 0.5 mg) slowed shrinkage of the whole brain

19 y for choline, 10.5 (SD, 5.1) microg/day for vitamin B12, 240 (SD, 104) mg/day for betaine, and 1,268

20 n the ABC transporter BtuCD-F, which imports vitamin B12 across the inner membrane of Escherichia col

21 binding and transport of cobalamin (CBL), or vitamin B12, across the asymmetric outer membrane (OM) o

22 de novo biosynthesis of the coenzyme form of vitamin B12, adenosylcobalamin, representing aerobic and

23 Diode array detector was used to monitor vitamin B12, after its chromatographic separation under

24 The vitamin B12 analog cobinamide reversed the cellular toxi

25 When vitamin B12 and AMP-PNP are simultaneously present, the

26 Crystals of the apo form of the vitamin B12 and colicin receptor, BtuB, that diffract to

27 ysiology of megaloblastic anemia observed in vitamin B12 and folate deficiency.

28 In particular, two B-type vitamins, vitamin B12 and folate, have been studied in detail.

29 Patients received vitamin B12 and folic acid supplementation as well as de

30 Vitamin B12 and haem compete for binding to NPAS2 and mP

31 [SD] age, 70.9 [9.1] years), higher baseline vitamin B12 and holotranscobalamin levels were associate

32 highlight mechanisms that affect vitamin B6, vitamin B12 and homocysteine serum levels.

33 assimilation of complex precursors, such as vitamin B12 and hydroxocobalamin.

34 epsilonC/epsilonCl values of 4.6 and 5.0 for vitamin B12 and norvitamin B12 were significantly differ

35 antifying physiologically relevant levels of vitamin B12 and performing human trials where it was use

36 didate genes for plasma homocysteine, plasma vitamin B12 and plasma PLP.

37 These results expand the biological role of vitamin B12 and provide fundamental insight into a new m

38 or critical for the intestinal absorption of vitamin B12 and renal protein reabsorption.

39 ed that EutR expression is induced by EA and vitamin B12 and that EutR promotes expression of the eut

40 This study suggests that both vitamin B12 and total homocysteine concentrations may be

41 many reasons for reviewing the neurology of vitamin-B12 and folic-acid deficiencies together, includ

42 ansplant, together with some micronutrients (vitamins B12 and B6, zinc, and phosphorus).

43 Chemical models such as cobalamine (vitamin B12) and its simplified analogue cobaloxime have

44 ctive intestinal malabsorption of cobalamin (vitamin B12) and urinary loss of several specific low-mo

45 Serum creatinine, BUN, folate and vitamin B12, and blood cyclosporine trough level (C0) ar

46 erfere with the absorption of iron, calcium, vitamin B12, and certain drugs as well as predispose the

47 erfere with the absorption of iron, calcium, vitamin B12, and certain drugs as well as predispose to

48 as well as the absorption of iron, calcium, vitamin B12, and certain medications as well as prevents

49 as well as the absorption of iron, calcium, vitamin B12, and certain medications.

50 r nutrients acting as methyl donors (folate, vitamin B12, and choline) and asthma.

51 boflavin, pyridoxal phosphate (PLP), folate, vitamin B12, and flavin mononucleotide (FMN) were measur

52 ating form is pyridoxal-5'-phosphate (PLP)], vitamin B12, and homocysteine in relationship to pancrea

53 All patients received folic acid, vitamin B12, and steroid prophylaxis.

54 he vitamin cofactors folate, vitamin B6, and vitamin B12; and 3) adjustment for the presence of risk

55 Serum vitamin B12 as a continuous variable was observed to be

56 one-half of all microalgal species requires vitamin B12 as a growth supplement.

57 We identify vitamin B12 as the major dilutable metabolite provided b

58 ntake of B vitamins (folate, vitamin B6, and vitamin B12) as ascertained by repeated administration o

59 solving a long-standing problem in anaerobic vitamin B12 assembly and reveal an unanticipated interse

60 oped, reduction-free, direct alkynylation of vitamin B12 at the central cobalt ion proved to be versa

61 and its activity is induced by its cofactor, vitamin B12, at a translational level.

62 the transport cycle of the Escherichia coli vitamin B12 ATP-binding cassette importer BtuCD-F.

63 in a bacterial-diatom model system based on vitamin B12 auxotrophy as a sensitive assay for metaboli

64 perature (-13.3 +/- 0.9 per thousand), trace vitamin B12 availability (-12.7 +/- 1.0 per thousand), l

65 ntary experimental approaches, the impact of vitamin B12 availability and methotrexate exposure on Da

66 In the present study, we have shown that vitamin B12 (B12) deficiency in a murine genetic model r

67 the associations between intakes of choline, vitamin B12, betaine, and folate during the first and se

68 In Listeria monocytogenes, a vitamin B12-binding (B12) riboswitch was identified, not

69 y mutations in genes encoding enzymes of the vitamin B12 biosynthesis pathway and the vitamin B12-dep

70 Genetic machinery for cobalt-containing vitamin B12 biosynthesis was present in both anaerobic m

71 an unanticipated intersection of thiamin and vitamin B12 biosynthesis.

72 ogue of thiC (bzaF) clustered with anaerobic vitamin B12 biosynthetic genes.

73 ater-soluble vitamins folic acid, cobalamin (vitamin B12), biotin, pantothenic acid, and thiamine (vi

74 and follow-up levels of plasma Hcy, folate, vitamin B12, blood pressure and other pertinent covariab

75 Vitamin B12 bound to haptocorrin (holoHC) remained highl

76 reflects nutritional status with regards to vitamin B12, but at these low concentration current Cbl

77 pendent degradation of ethanolamine if given vitamin B12, but it can make B12 from exogenous Cbi only

78 Vitamin B12-catalyzed reductive dechlorination of perchl

79 f residues 6 and 7 is similar to that of the vitamin B12-charged state.

80 n this area, providing a deeper insight into vitamin B12 chemistry.

81 Vitamin B12 (cobalamin (Cbl)), in the cofactor forms met

82 Derivatives of vitamin B12 (cobalamin) are essential cofactors for enzy

83 editary juvenile megaloblastic anemia due to vitamin B12 (cobalamin) deficiency is caused by intestin

84 onas rostrata requires an external supply of vitamin B12 (cobalamin) for growth, which it can obtain

85 of exons from the cap domain, which protects vitamin B12 (cobalamin) from oxidation.

86 Vitamin B12 (cobalamin) is among the largest known non-p

87 Targeting cancer cells with vitamin B12 (cobalamin) is hampered by unwanted physiolo

88 Vitamin B12 (cobalamin) is required by humans and other

89 Vitamin B12 (cobalamin) was identified nearly 80 years a

90 Vitamin B12 (cobalamin) was recently shown to be a super

91 uct of propionic acid metabolism through the vitamin B12 (cobalamin)-dependent enzyme methylmalonyl C

92 of cobalt-containing cofactors that includes vitamin B12 (cobalamin).

93 Vitamin B12 (cobalamin, 1) is one of a few naturally occ

94 Conversion of vitamin B12 (cobalamin, Cbl) into the cofactor forms met

95 320 binds transcobalamin (TC) saturated with vitamin B12 [cobalamin (Cbl)] and mediates cellular upta

96 ibition during development, and an excess of vitamin B12 coenzyme, which is essential for class II ac

97 Circulating vitamin B12 concentration can be used to diagnose defici

98 The vitamin B12 concentration was determined by RP-HPLC with

99 orted associations between total circulating vitamin B12 concentrations and a common null variant in

100 MTHFR genotype did not affect folate or vitamin B12 concentrations in subjects or controls.

101 absorption is associated with reduced serum vitamin B12 concentrations, mild macrocytic anemia, and

102 by single soft nanoparticles in the form of Vitamin B12 -containing droplets.

103 s of strict vegetarians, an investigation of vitamin B12 content in plant sources, was carried out.

104 As confirmed by UHPLC-MS, the active vitamin B12 could be separated from pseudovitamin B12.

105 the addition of cobalt or cobalt-containing vitamin B12 could further enhance chlorophyll a yields b

106 nvestigate the excited-state photophysics of vitamin B12 (cyanocobalamin, CNCbl) and the related cob(

107 s used to characterize the photochemistry of vitamin B12, cyanocobalamin (CNCbl), in solution.

108 new diagnoses were prediabetes (28 [6.1%]), vitamin B12 deficiency (20 [4.4%]), diabetes mellitus (8

109 I pills/d were more strongly associated with vitamin B12 deficiency (OR, 1.95 [95% CI, 1.77-2.15]) th

110 tests for diabetes, thyroid dysfunction, and vitamin B12 deficiency allowed neurologists to identify

111 For decades, it has been observed that vitamin B12 deficiency and multiple sclerosis (MS) share

112 TIENTS: We evaluated the association between vitamin B12 deficiency and prior use of acid-suppressing

113 25,956 patients having incident diagnoses of vitamin B12 deficiency between January 1997 and June 201

114 Clinical vitamin B12 deficiency can result in megaloblastic anemi

115 Given that vitamin B12 deficiency causes an optic neuropathy throug

116 Vitamin B12 deficiency causes megaloblastic anemia and n

117 long-term exposure to these medications and vitamin B12 deficiency in large population-based studies

118 Vitamin B12 deficiency is common in older individuals.

119 Dietary vitamin B12 deficiency is not prevalent in Asia, except

120 Vitamin B12 deficiency is often asymptomatic early in it

121 Risk of vitamin B12 deficiency was estimated using odds ratios (

122 Among patients without vitamin B12 deficiency, 13,210 (7.2%) were dispensed a 2

123 Among patients with incident diagnoses of vitamin B12 deficiency, 3120 (12.0%) were dispensed a 2

124 ignificantly associated with the presence of vitamin B12 deficiency.

125 ) were associated with an increased risk for vitamin B12 deficiency.

126 indistinguishable from the findings seen in vitamin B12 deficiency.

127 shunt that is transcriptionally activated on vitamin B12 deficient diets, or under genetic conditions

128 tal homocysteine are sensitive indicators of vitamin B12-deficient diets and correlate with clinical

129 The breast-fed infant of a vitamin B12-deficient mother is at risk for severe devel

130 een proposed for such different processes as Vitamin B12-dependent biodegradation and zerovalent meta

131 The folate and vitamin B12-dependent enzyme methionine synthase (MS) is

132 In the present study, we have found that vitamin B12-dependent methionine metabolism is dysregula

133 al metabolism is primarily as a cofactor for vitamin B12-dependent methionine synthase, and that coba

134 the vitamin B12 biosynthesis pathway and the vitamin B12-dependent methylmalonyl-CoA-mutase MutAB.

135 Activation of an alternative vitamin B12-dependent pathway of propionate metabolism l

136 ctivity lead to the bacterium switching from vitamin B12-dependent to vitamin B12-independent biosynt

137 Vitamin B12 depletion decreased de novo dTMP biosynthesi

138 The impact of vitamin B12 depletion on nuclear de novo dTMP biosynthes

139 f DNA double-strand breaks, was increased in vitamin B12 depletion, and this effect was exacerbated b

140 te that a nuclear 5-methylTHF trap occurs in vitamin B12 depletion, which suppresses de novo dTMP bio

141 ly discovered CarH-type photoreceptors use a vitamin B12 derivative, adenosylcobalamin, as the light-

142 The synthesis of vitamin B12 derivatives for selective orthogonal conjuga

143 (ACATs) exist that are capable of converting vitamin B12 derivatives into coenzyme B12 by catalyzing

144 crucial step involved the synthesis of new, vitamin B12 derived cobryketone via palladium-catalyzed

145 bination pill of folic acid, vitamin B6, and vitamin B12 did not reduce a combined end point of total

146 Dietary deficiency of vitamin B12 due to vegetarianism is increasing and cause

147 An adequate intake of vitamin B12 during pregnancy plays an important role in

148 Vitamin B12 exists naturally in foods of animal origin a

149 factors that affect circulating vitamin B6, vitamin B12, folate and homocysteine, a genome-wide asso

150 Vitamin B12, folate, and sulfur amino acids may be modif

151 s, we estimated the production of vitamin A, vitamin B12, folate, iron, zinc, calcium, calories, and

152 2 intravenously on day 1 every 21 days, with vitamin B12, folic acid, and dexamethasone prophylaxis.

153 robial compounds; dietary factors, including vitamin B12, folic acid, and fish oil; obesity; and stre

154 h on propanediol plus Cbi and can use pseudo-vitamin B12 for all of their corrinoid-dependent enzymes

155 revealed that 171 species require exogenous vitamin B12 for growth, implying that more than half of

156 Many microalgae acquire vitamin B12 from marine prokaryotes.

157 The recovery of vitamin B12 from purified spiked cereal matrices was goo

158 In the cytosol, vitamin B12 functions in the remethylation of homocystei

159 Vitamin B12 had a positive influence on Daphnia fitness

160 delian randomization estimated that maternal vitamin B12 had a small causal effect on DNA methylation

161 We find that vitamin B12 has a dual role in the animal: it affects de

162 The transcytotic pathway of vitamin B12 has previously been shown to 'ferry' B12-dec

163 Folates and vitamin B12 have fundamental roles in CNS function at al

164 nsporters (importers of trace elements, e.g. vitamin B12, heme, and iron-siderophores) the role of AT

165 Vitamin B12 (hereafter referred to as B12) deficiency in

166 Transcobalamin bound vitamin B12 (holoTC) was not influenced by this variant.

167 ntify additional loci associated with plasma vitamin B12, homocysteine, folate and vitamin B6 (active

168 yroidism, and eight (16%) had low amounts of vitamin B12 (ie, below the normal cutpoint).

169 do know has been observed in studies of the vitamin B12 importer BtuC2D2.

170 state previously observed for the homologous vitamin B12 importer BtuCD.

171 Folate plus vitamin B12 improved negative symptoms significantly com

172 Here we show that the role of vitamin B12 in algal metabolism is primarily as a cofact

173 OHCbl, natural form) and in situ-synthesised vitamin B12 in breadmaking.

174 ansport-defective alter the binding site for vitamin B12 in BtuB.

175 idated for the determination of human active vitamin B12 in cell extracts of Propionibacterium freude

176 method is needed to analyse in situ produced vitamin B12 in plant-based materials, potential new diet

177 Significant amounts of vitamin B12 in plants were detected in Hippophae rhamnoi

178 lasma total homocysteine (tHcy), folate, and vitamin B12 in plasma and liver, as well as biliary tHcy

179 an milk and serum show that past analyses of vitamin B12 in samples with high HC content might have b

180 dding complexity to our assessment of active vitamin B12 in the environment.

181 tration did not reflect the amount of Cbl or vitamin B12 in the liver.

182 lities still retain the ability to fully use vitamin B12 in vivo.

183 rium switching from vitamin B12-dependent to vitamin B12-independent biosynthetic pathways, through t

184 evolution, probably owing to the loss of the vitamin B12-independent form of the enzyme.

185 ntification and carbon tracing, we uncover a vitamin B12-independent propionate breakdown shunt that

186 n incubations with reduced cobalamins (e.g., vitamin B12) indicating that biomolecules can transform

187 Deficiency of folate or vitamin B12 inhibits purine and thymidylate syntheses, i

188 New food sources are needed to ensure vitamin B12 intake in risk groups.

189 mortality, and between multivitamin use and vitamin B12 intake on CVD mortality and total mortality.

190 Vitamin B12 intake was inversely associated with breast

191 dies (GWAS) in which we resolved total serum vitamin B12 into the fractions bound to transcobalamin a

192 to malabsorption of iron, folic acid, and/or vitamin B12 is a common complication of celiac disease a

193 clinical penetrance of <60%, elevated serum vitamin B12 is a reliable and accurate biomarker of ALPS

194 Vitamin B12 is among the most essential biomolecules req

195 Vitamin B12 is an important cofactor in one-carbon metab

196 Vitamin B12 is bound in the periplasm by BtuF, which del

197 Vitamin B12 is necessary for formation of red blood cell

198 A new study demonstrates that vitamin B12 is synthesized by planktonic cyanobacteria a

199 Chronic deficiency of vitamin B12 is the only nutritional deficiency definitiv

200 Although the corrin ring of vitamin B12 is unable to efficiently absorb light beyond

201 Cobalamin (Cbl; vitamin B12) is an essential micronutrient synthesized o

202 ylcobalamin or the two-electron reduction of vitamin B12, is one of the most powerful nucleophiles kn

203 In contrast, the vitamin B12 level among the AMD cases was 64.16 pg/mL (9

204 k among women with lower (vs. higher) plasma vitamin B12 levels (P interaction = 0.003).

205 chromosome 19q13 were associated with plasma vitamin B12 levels among women in a genome-wide associat

206 hionine concurrent with decreased folate and vitamin B12 levels and Hcy transsulfuration to cysteine.

207 There was no association between folate and vitamin B12 levels and likelihood of a successful pregna

208 a mobile platform for the analysis of blood vitamin B12 levels in 15 minutes.

209 d rs1047781:A > T as proxies for circulating vitamin B12 levels in the Avon Longitudinal Study of Par

210 Folate, homocysteine and vitamin B12 levels of children at birth did not affect a

211 Folate, homocysteine and vitamin B12 levels of children at birth were not associa

212 , we estimated the causal effect of maternal vitamin B12 levels on cord blood DNA methylation using t

213 findings support a causal effect of maternal vitamin B12 levels on cord blood DNA methylation, and a

214 Neonatal cord blood folate, homocysteine and vitamin B12 levels were measured, and MTHFR C677T and A1

215 ictive of HFS, including baseline folate and vitamin B12 levels, as well as genetic polymorphisms wit

216 ated with elevated tHcy levels and decreased vitamin B12 levels.

217 BMI, smoking, dyslipidemia, eGFR, folate and vitamin B12 levels.

218 were eligible for analysis of folic acid and vitamin B12 levels.

219 type lateral flow test strip that quantifies vitamin B12 levels.

220 hese individuals exhibit reduced circulating vitamin B12 levels.

221 Corrinoid (vitamin B12-like) cofactors contain various alpha-axial

222 Folic acid and vitamin B12 may have roles in the prevention of disorder

223 d cell count, comprehensive metabolic panel, vitamin B12 measurement, serum protein electrophoresis w

224 human physiology and its mechanistic link to vitamin B12 metabolism remain unknown.

225 order characterized by defects in cobalamin (vitamin B12) metabolism and other developmental defects.

226 By increasing the adsorption duration, vitamin B12 molecules gradually diffused in between mont

227 Electron transfer to single Vitamin B12 nanodroplets is observed using the nano-impa

228 We report the use of single Vitamin B12 nanodroplets to mediate the reduction of oxy

229 onal genome-wide significant loci for plasma vitamin B12 on chromosomes 6p21 (P = 4.05 x 10(-08)), 10

230 tural formation and nature of interaction of vitamin B12 onto montmorillonite as a carrier.

231 In this study properties of adsorption of vitamin B12 onto nanoclay were investigated.

232 pill containing folic acid, vitamin B6, and vitamin B12 or a matching placebo, and were treated for

233 No patients developed iron, vitamin B12 or folate deficiency.

234 tive comet assay to determine the effects of vitamin B12 or MTX on fitness and the epigenome.

235 omized to receive daily oral folic acid plus vitamin B12 or placebo.

236 de (vitamin B6), and 2 mg of cyanocobalamin (vitamin B12) or a placebo.

237 .5 mg folic acid, 50 mg vitamin B6, and 1 mg vitamin B12) or to the placebo group.

238 The absorption of vitamin B12, or cobalamin (Cbl), is unique in requiring

239 observed no association between folate, PLP, vitamin B12, or homocysteine and pancreatic cancer risk.

240 not routinely raise their intake of calcium, vitamin B12, or magnesium beyond the Recommended Dietary

241 ection of sub-nmol/L physiological levels of vitamin B12, our assay incorporates an innovative "space

242 ase of 1 SD, beta (SE) was 0.048 (0.013) for vitamin B12 (P < .001) and 0.040 (0.013) for holotransco

243 alysis indicated that serum folate (P=0.01), vitamin B12 (P=0.05), creatinine (P=0.03), and BUN (P=0.

244 Vitamin B12 plays a key role in many metabolic processes

245 or the preparation of cobinamide (CN)2Cbi, a vitamin B12 precursor, that should allow its broader uti

246 wed previously that cobinamide, a cobalamin (vitamin B12) precursor, binds NO with high affinity, and

247 lbert Eschenmoser, Woodward's partner in the vitamin B12 project.

248 ved in macronutrient metabolism; and folate, vitamin B12, pyridoxine, and riboflavin play important r

249 coli outer membrane proteins-the cobalamin (vitamin B12) receptor (BtuB) and the OmpF porin, which a

250 may contribute to a better understanding of vitamin B12-related disease.

251 Only a small fraction of vitamin B12-requiring organisms are able to synthesize B

252 d folic acid, 50 mg/d vitamin B6, and 1 mg/d vitamin B12), respectively.

253 lood DNA methylation, and a causal effect of vitamin B12-responsive DNA methylation changes on childr

254 criptional modulation of genes controlled by vitamin B12 riboswitches.

255 Maternofetal transport of vitamin B12: role of TCblR/CD320 and megalin.

256 602662, [corrected] p = 2.83 x 10(-20)) with vitamin B12 serum levels.

257 way, is required for the production of heme, vitamin B12, siroheme, and chlorophyll precursors.

258 causal role in associations between maternal vitamin B12 status and offspring's cognition.

259 ia, the MTHFR C677T mutation, and folate and vitamin B12 status are not important risk factors for RV

260 e was no significant difference in folate or vitamin B12 status between subjects and controls.

261 ere it was used to accurately evaluate blood vitamin B12 status of 12 participants from just a drop (

262 were analyzed for tHcy level and folate and vitamin B12 status, and extracted DNA was assessed for t

263 reductase (MTHFR) C677T genotype, folate and vitamin B12 status, and retinal vein occlusion (RVO).

264 12 or holoTC as first-line clinical tests of vitamin B12 status.

265 herichia coli TonB-dependent transporter for vitamin B12, substrate binding to the extracellular surf

266 Areas for research include intermittent vitamin B12 supplement dosing and better measurements of

267 Folate plus vitamin B12 supplementation can improve negative symptom

268 the need for randomized controlled trials of vitamin B12 supplementation in pregnancy.

269 ls are needed to determine the importance of vitamin B12 supplementation on slowing brain aging in ol

270 lonic acid, which were reduced by folate and vitamin B12 supplementation.

271 21 days with dexamethasone, folic acid, and vitamin B12 supplementation.

272 , which can be abrogated with folic acid and vitamin B12 supplementation.

273 t nitrosylcobalamin (NO-Cbl), an analogue of vitamin B12 that delivers nitric oxide (NO), had potent

274 t using 5'-deoxyadenosylcobalamin, a form of vitamin B12 that is best known as an enzyme cofactor, ha

275 f DMB provides clarification of an aspect of vitamin B12 that was otherwise incomplete, and may contr

276 evolution of higher eukaryotes that utilize vitamin B12, the high reactivity of the cofactor coupled

277 litates the absorption of iron, calcium, and vitamin B12; thwarts enteric infection; and prevents bac

278 d adenosyltransferase (ACAT) enzymes convert vitamin B12 to coenzyme B12.

279 dose (n=2054) of folic acid, vitamin B6, and vitamin B12 to determine whether decreasing total homocy

280 ATPase sites is inactive, ATP hydrolysis and vitamin B12 transport by BtuCD is reduced by 95%.

281 One deviant is the vitamin B12 transporter BtuCD that has been shown to ope

282 utes on the extracellular loops in BtuB, the vitamin B12 transporter, and FecA, the ferric citrate tr

283 (2014) establish the importance of different vitamin B12 transporters that help a Bacteroides species

284 is question by studying the Escherichia coli vitamin B12 type II ABC transporter BtuCD.

285 l and health supplements), growth media, and vitamin B12 using methane as their carbon source.

286 gen-doped carbon (C-N-Fe), was prepared from vitamin B12 (VB12) and the polyaniline-Fe (PANI-Fe) comp

287 Previous studies evaluating Vitamin B12 (VB12) with Ti(III)-citrate for potential us

288 de scavenger, we tested whether cobalamin, a vitamin B12 vitamer, would be neuroprotective in vitro a

289 In situ-produced vitamin B12 was almost as stable as added CNCbl and more

290 Daily folic acid plus vitamin B12 was associated with improvements in performa

291 Vitamin B12 was extracted from Chlorella vulgaris biomas

292 Vitamin B12 was extracted in the presence of sodium cyan

293 Methylcobalamin, a form of vitamin B12 was identified in C. vulgaris and this findi

294 A nutritionally relevant amount of active vitamin B12 was produced by P. freudenreichii in cereal

295 ains of life require the cofactor cobalamin (vitamin B12), which is produced only by a subset of bact

296 We assessed intake of folate and vitamin B12 with a questionnaire and measured their plas

297 Treatment of vitamin B12 with only NaCN and heating in a microwave re

298 19q13, we confirm the association of plasma vitamin B12 with rs602662 and rs492602 (P-value = 1.83 x

299 In contrast, many algae are rich in vitamin B12, with some species, such as Porphyra yezoens

300 nts (vitamin A, vitamin D, iron, folic acid, vitamin B12, zinc, and glucose) in the control of cell c