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

Year Number of Results
1920 3
1921 2
1922 6
1923 3
1924 5
1925 10
1926 5
1927 6
1928 12
1929 9
1930 14
1931 16
1932 25
1933 23
1934 29
1935 16
1936 12
1937 12
1938 21
1939 22
1940 12
1941 24
1942 18
1943 14
1944 13
1945 43
1946 99
1947 135
1948 155
1949 108
1950 158
1951 187
1952 185
1953 169
1954 137
1955 167
1956 115
1957 135
1958 143
1959 113
1960 201
1961 235
1962 135
1963 205
1964 258
1965 171
1966 141
1967 135
1968 139
1969 186
1970 128
1971 167
1972 177
1973 154
1974 172
1975 261
1976 247
1977 212
1978 227
1979 256
1980 243
1981 249
1982 272
1983 316
1984 349
1985 379
1986 314
1987 362
1988 376
1989 370
1990 384
1991 374
1992 407
1993 443
1994 418
1995 460
1996 469
1997 419
1998 429
1999 476
2000 473
2001 473
2002 534
2003 513
2004 496
2005 538
2006 437
2007 587
2008 561
2009 562
2010 606
2011 634
2012 741
2013 685
2014 751
2015 728
2016 702
2017 681
2018 684
2019 778
2020 853
2021 591
2022 1
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25,908 results
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Page 1
Vitamin A and Pregnancy: A Narrative Review.
Bastos Maia S, Rolland Souza AS, Costa Caminha MF, Lins da Silva S, Callou Cruz RSBL, Carvalho Dos Santos C, Batista Filho M. Bastos Maia S, et al. Nutrients. 2019 Mar 22;11(3):681. doi: 10.3390/nu11030681. Nutrients. 2019. PMID: 30909386 Free PMC article. Review.
Vitamin A is a crucial micronutrient for pregnant women and their fetuses. ...Vitamin A requirements during pregnancy are therefore greater. Vitamin A deficiency (VAD) remains the leading cause of preventable blindness in the world. ...
Vitamin A is a crucial micronutrient for pregnant women and their fetuses. ...Vitamin A requirements during pregnancy are ther
Vitamin A and Wound Healing.
Zinder R, Cooley R, Vlad LG, Molnar JA. Zinder R, et al. Nutr Clin Pract. 2019 Dec;34(6):839-849. doi: 10.1002/ncp.10420. Nutr Clin Pract. 2019. PMID: 31697447 Review.
Vitamin A is a general term for retinoids. Vitamin A deficiency leads to a variety of cutaneous manifestations. ...There is an acute need for therapeutic trials with vitamin A supplementations....
Vitamin A is a general term for retinoids. Vitamin A deficiency leads to a variety of cutaneous manifestations. ...There is an
Vitamin A Absorption, Storage and Mobilization.
Blaner WS, Li Y, Brun PJ, Yuen JJ, Lee SA, Clugston RD. Blaner WS, et al. Subcell Biochem. 2016;81:95-125. doi: 10.1007/978-94-024-0945-1_4. Subcell Biochem. 2016. PMID: 27830502 Review.
It is well established that chylomicron remnant (dietary) vitamin A is taken up from the circulation by hepatocytes, but more than 80 % of the vitamin A in the liver is stored in hepatic stellate cells (HSC). ...It is not known how these different circulating pools …
It is well established that chylomicron remnant (dietary) vitamin A is taken up from the circulation by hepatocytes, but more than 80 …
Role of Vitamin A in Mammary Gland Development and Lactation.
Cabezuelo MT, Zaragozá R, Barber T, Viña JR. Cabezuelo MT, et al. Nutrients. 2019 Dec 27;12(1):80. doi: 10.3390/nu12010080. Nutrients. 2019. PMID: 31892157 Free PMC article. Review.
It is obtained from diet either as preformed vitamin A or as carotenoids. Retinal plays a biological role in vision, but most of the effects of vitamin A are exerted by retinoic acid, which binds to nuclear receptors and regulates gene transcription. Vitamin
It is obtained from diet either as preformed vitamin A or as carotenoids. Retinal plays a biological role in vision, but most of the …
Vitamin A, infection, and immune function.
Stephensen CB. Stephensen CB. Annu Rev Nutr. 2001;21:167-92. doi: 10.1146/annurev.nutr.21.1.167. Annu Rev Nutr. 2001. PMID: 11375434 Review.
In populations where vitamin A availability from food is low, infectious diseases can precipitate vitamin A deficiency by decreasing intake, decreasing absorption, and increasing excretion. ...Vitamin A is also required for adaptive immunity and plays a role …
In populations where vitamin A availability from food is low, infectious diseases can precipitate vitamin A deficiency by decr …
Vitamin a metabolism, action, and role in skeletal homeostasis.
Conaway HH, Henning P, Lerner UH. Conaway HH, et al. Endocr Rev. 2013 Dec;34(6):766-97. doi: 10.1210/er.2012-1071. Epub 2013 May 29. Endocr Rev. 2013. PMID: 23720297 Review.
Vitamin A (retinol) is ingested as either retinyl esters or carotenoids and metabolized to active compounds such as 11-cis-retinal, which is important for vision, and all-trans-retinoic acid, which is the primary mediator of biological actions of vitamin A. ...Vi
Vitamin A (retinol) is ingested as either retinyl esters or carotenoids and metabolized to active compounds such as 11-cis-retinal, w
The vitamin A spectrum: from deficiency to toxicity.
Russell RM. Russell RM. Am J Clin Nutr. 2000 Apr;71(4):878-84. doi: 10.1093/ajcn/71.4.878. Am J Clin Nutr. 2000. PMID: 10731492 Review.
Dark adaptation has been used as a tool for identifying patients with subclinical vitamin A deficiency. With this functional test it was shown that tissue vitamin A deficiency occurs over a wide range of serum vitamin A concentrations. ...Vitamin A tox …
Dark adaptation has been used as a tool for identifying patients with subclinical vitamin A deficiency. With this functional test it …
Vitamin A in reproduction and development.
Clagett-Dame M, Knutson D. Clagett-Dame M, et al. Nutrients. 2011 Apr;3(4):385-428. doi: 10.3390/nu3040385. Epub 2011 Mar 29. Nutrients. 2011. PMID: 22254103 Free PMC article. Review.
The activity of the catabolic CYP26 enzymes in determining what tissues have access to RA has emerged as a key regulatory mechanism, and helps to explain why exogenous RA can rescue many vitamin A deficiency defects. In severely vitamin A-deficient (VAD) female rats …
The activity of the catabolic CYP26 enzymes in determining what tissues have access to RA has emerged as a key regulatory mechanism, and hel …
Vitamin A: too much of a good thing?
Duerbeck NB, Dowling DD. Duerbeck NB, et al. Obstet Gynecol Surv. 2012 Feb;67(2):122-8. doi: 10.1097/OGX.0b013e318244c52d. Obstet Gynecol Surv. 2012. PMID: 22325302 Review.
Although vitamin A deficiency is relatively rare in the United States, globally it is the most common cause of blindness. ...LEARNING OBJECTIVES: After participating in this CME activity, physicians should be better able to identify sources of Vitamin A, distinguish …
Although vitamin A deficiency is relatively rare in the United States, globally it is the most common cause of blindness. ...LEARNING …
Vitamin A and Retinoids as Mitochondrial Toxicants.
de Oliveira MR. de Oliveira MR. Oxid Med Cell Longev. 2015;2015:140267. doi: 10.1155/2015/140267. Epub 2015 May 19. Oxid Med Cell Longev. 2015. PMID: 26078802 Free PMC article. Review.
Moreover, decreased life quality and increased mortality rates among vitamin A supplements users have been reported. However, the exact mechanism by which vitamin A elicits its deleterious effects is not clear yet. In this review, the role of mitochondrial dysfuncti …
Moreover, decreased life quality and increased mortality rates among vitamin A supplements users have been reported. However, the exa …
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