Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1945 1
1946 1
1948 36
1949 114
1950 222
1951 291
1952 278
1953 291
1954 289
1955 300
1956 242
1957 273
1958 316
1959 296
1960 250
1961 267
1962 312
1963 398
1964 543
1965 408
1966 472
1967 499
1968 510
1969 594
1970 518
1971 490
1972 508
1973 465
1974 490
1975 430
1976 399
1977 376
1978 290
1979 327
1980 274
1981 294
1982 261
1983 279
1984 275
1985 266
1986 289
1987 242
1988 239
1989 292
1990 296
1991 272
1992 318
1993 321
1994 313
1995 282
1996 317
1997 358
1998 386
1999 460
2000 485
2001 551
2002 597
2003 652
2004 712
2005 704
2006 766
2007 766
2008 744
2009 768
2010 789
2011 861
2012 939
2013 1003
2014 964
2015 1026
2016 950
2017 915
2018 1001
2019 1096
2020 1222
2021 1257
2022 1295
2023 1271
2024 441

Text availability

Article attribute

Article type

Publication date

Search Results

36,931 results

Results by year

Filters applied: . Clear all
Page 1
Vitamin B12 deficiency - A 21st century perspective .
Shipton MJ, Thachil J. Shipton MJ, et al. Clin Med (Lond). 2015 Apr;15(2):145-50. doi: 10.7861/clinmedicine.15-2-145. Clin Med (Lond). 2015. PMID: 25824066 Free PMC article. Review.
Vitamin B12 deficiency is a common condition which can present with non-specific clinical features, and in severe cases with neurological or haematological abnormalities. ...This review focuses on the developments in the clinical features and management of vitami
Vitamin B12 deficiency is a common condition which can present with non-specific clinical features, and in severe cases with n
Vitamin B12 and health.
Ryan-Harshman M, Aldoori W. Ryan-Harshman M, et al. Can Fam Physician. 2008 Apr;54(4):536-41. Can Fam Physician. 2008. PMID: 18411381 Free PMC article. Review.
MAIN MESSAGE: Vitamin B12 might confer health benefits; however, such benefits are difficult to ascertain because of the complementary functions of vitamin B12 and folic acid. Vitamin B12 might lower high homocysteine levels below a thres …
MAIN MESSAGE: Vitamin B12 might confer health benefits; however, such benefits are difficult to ascertain because of the compl …
Vitamin B12 in meat and dairy products.
Gille D, Schmid A. Gille D, et al. Nutr Rev. 2015 Feb;73(2):106-15. doi: 10.1093/nutrit/nuu011. Nutr Rev. 2015. PMID: 26024497 Review.
Vitamin B12 is synthesized exclusively by microorganisms; therefore, humans must absorb it from food. ...Processing of ruminant food, including thermal treatment, usually diminishes the vitamin B12 concentration. This review summarizes the vitamin
Vitamin B12 is synthesized exclusively by microorganisms; therefore, humans must absorb it from food. ...Processing of ruminan
The role of Vitamin B12 in the critically ill--a review.
Romain M, Sviri S, Linton DM, Stav I, van Heerden PV. Romain M, et al. Anaesth Intensive Care. 2016 Jul;44(4):447-52. doi: 10.1177/0310057X1604400410. Anaesth Intensive Care. 2016. PMID: 27456173 Review.
The ingested Vitamin B12 undergoes a complex process of absorption and assimilation. ...Treatment of Vitamin B12 deficiency is simple, but may be lifelong....
The ingested Vitamin B12 undergoes a complex process of absorption and assimilation. ...Treatment of Vitamin B12
Microbial production of vitamin B12.
Martens JH, Barg H, Warren MJ, Jahn D. Martens JH, et al. Appl Microbiol Biotechnol. 2002 Mar;58(3):275-85. doi: 10.1007/s00253-001-0902-7. Epub 2001 Dec 20. Appl Microbiol Biotechnol. 2002. PMID: 11935176 Review.
The rich scientific history of vitamin B12 research, its biological functions and the pathways employed by bacteria for its de novo synthesis are described. Current strategies for the improvement of vitamin B12 production using modern biotechnological …
The rich scientific history of vitamin B12 research, its biological functions and the pathways employed by bacteria for its de …
Treatment of vitamin B12 deficiency-methylcobalamine? Cyancobalamine? Hydroxocobalamin?-clearing the confusion.
Thakkar K, Billa G. Thakkar K, et al. Eur J Clin Nutr. 2015 Jan;69(1):1-2. doi: 10.1038/ejcn.2014.165. Epub 2014 Aug 13. Eur J Clin Nutr. 2015. PMID: 25117994
Vitamin B12 (cyancobalamin, Cbl) has two active co-enzyme forms, methylcobalamin (MeCbl) and adenosylcobalamin (AdCbl). There has been a paradigm shift in the treatment of vitamin B12 deficiency such that MeCbl is being extensively used and promoted. .
Vitamin B12 (cyancobalamin, Cbl) has two active co-enzyme forms, methylcobalamin (MeCbl) and adenosylcobalamin (AdCbl). There
[Vitamin B12 (cobalamin)].
Guilland JC, Aimone-Gastin I. Guilland JC, et al. Rev Prat. 2013 Oct;63(8):1085-7, 1089-90. Rev Prat. 2013. PMID: 24298826 Review. French.
The term "vitamin B12" refers to four cobalamins (Cbl), including methyl-Cbl and adenosyl-Cbl, the two enzyme co-factors of methionine synthase and methylmalonyl-CoA mutase, respectively. Vitamin B12 deficiency produces clinical disorders that include …
The term "vitamin B12" refers to four cobalamins (Cbl), including methyl-Cbl and adenosyl-Cbl, the two enzyme co-factors of me …
Vitamin B12: chemical modifications.
óProinsias Ko, Giedyk M, Gryko D. óProinsias Ko, et al. Chem Soc Rev. 2013 Aug 21;42(16):6605-19. doi: 10.1039/c3cs60062a. Epub 2013 May 29. Chem Soc Rev. 2013. PMID: 23715409 Review.
Vitamin B12 plays a key role in many metabolic processes occurring in all mammals. ...This tutorial review summarizes all the advancements made in this area, providing a deeper insight into vitamin B12 chemistry....
Vitamin B12 plays a key role in many metabolic processes occurring in all mammals. ...This tutorial review summarizes all the
[Vitamin B12].
Watanabe F, Nakano Y. Watanabe F, et al. Nihon Rinsho. 1999 Oct;57(10):2205-10. Nihon Rinsho. 1999. PMID: 10540863 Review. Japanese.
Vitamin B12 is synthesized in some bacteria but not in animals and plants. Intestinal absorption and subsequent plasma transport of vitamin B12 are mediated by specific vitamin B12-binding proteins and their receptors in mammals. ...
Vitamin B12 is synthesized in some bacteria but not in animals and plants. Intestinal absorption and subsequent plasma transpo
[Hypervitaminemia B12 (high level of cobalamin): physiopathology, role and interest in clinical practice].
Serraj K, Mecili M, Housni I, Andrès E. Serraj K, et al. Presse Med. 2011 Dec;40(12 Pt 1):1120-7. doi: 10.1016/j.lpm.2011.08.010. Epub 2011 Oct 22. Presse Med. 2011. PMID: 22023830 Review. French.
Clinically, it can be sometimes paradoxically accompanied by signs of deficiency reflecting a functional deficit in relation to qualitative abnormalities related to defects in tissue uptake and action of vitamin B12. Etiological profile of hypervitaminemias B12
Clinically, it can be sometimes paradoxically accompanied by signs of deficiency reflecting a functional deficit in relation to qualitative …
36,931 results
You have reached the last available page of results. Please see the User Guide for more information.