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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 83
1946 211
1947 246
1948 246
1949 205
1950 274
1951 307
1952 288
1953 265
1954 231
1955 250
1956 213
1957 253
1958 238
1959 187
1960 241
1961 283
1962 212
1963 320
1964 376
1965 267
1966 253
1967 291
1968 300
1969 401
1970 358
1971 370
1972 419
1973 398
1974 397
1975 454
1976 436
1977 403
1978 446
1979 493
1980 549
1981 579
1982 695
1983 705
1984 750
1985 823
1986 812
1987 824
1988 883
1989 825
1990 980
1991 987
1992 1152
1993 1199
1994 1281
1995 1272
1996 1309
1997 1346
1998 1280
1999 1245
2000 1354
2001 1204
2002 1278
2003 1242
2004 1272
2005 1288
2006 1197
2007 1356
2008 1343
2009 1316
2010 1400
2011 1405
2012 1526
2013 1455
2014 1522
2015 1427
2016 1334
2017 1297
2018 1246
2019 1326
2020 1366
2021 1457
2022 1513
2023 1457
2024 1302
2025 177

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60,962 results

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Page 1
The importance of vitamin A in nutrition.
Dawson MI. Dawson MI. Curr Pharm Des. 2000 Feb;6(3):311-25. doi: 10.2174/1381612003401190. Curr Pharm Des. 2000. PMID: 10637381 Review.
Preformed vitamin A (all-trans-retinol and its esters) and provitamin A (beta-carotene) are essential dietary nutrients that provide a source of retinol. ...Thus far, correlative epidemiological studies on vitamin A use and cancer prevention have produ …
Preformed vitamin A (all-trans-retinol and its esters) and provitamin A (beta-carotene) are essential dietary nutrients that p …
Vitamin A and the epigenome.
Bar-El Dadon S, Reifen R. Bar-El Dadon S, et al. Crit Rev Food Sci Nutr. 2017 Jul 24;57(11):2404-2411. doi: 10.1080/10408398.2015.1060940. Crit Rev Food Sci Nutr. 2017. PMID: 26565606 Review.
This influence is termed nutritional epigenetics, and one prominent example is the regulation of gene transcription by vitamin A through interaction to its nuclear receptor. Vitamin A is critical throughout life. ...Medical benefits of vitamin
This influence is termed nutritional epigenetics, and one prominent example is the regulation of gene transcription by vitamin A
Vitamin A.
Bates CJ. Bates CJ. Lancet. 1995 Jan 7;345(8941):31-5. doi: 10.1016/s0140-6736(95)91157-x. Lancet. 1995. PMID: 7799706 Review. No abstract available.
[Chemical Biology Studies Using Vitamin A Analogs].
Wada A. Wada A. Yakugaku Zasshi. 2021;141(4):557-577. doi: 10.1248/yakushi.20-00230. Yakugaku Zasshi. 2021. PMID: 33790122 Free article. Review. Japanese.
"Retinoid" is the general term for vitamin A derivatives and chemical compounds that act like vitamin A. Vitamin A are composed of four isoprene units and are named according to their terminal functional group, such as retinol (OH, 1), re …
"Retinoid" is the general term for vitamin A derivatives and chemical compounds that act like vitamin A. Vita
Vitamin A and cancer.
Niles RM. Niles RM. Nutrition. 2000 Jul-Aug;16(7-8):573-6. doi: 10.1016/s0899-9007(00)00347-6. Nutrition. 2000. PMID: 10906560 Review. No abstract available.
Vitamin A in health care: Suppression of growth and induction of differentiation in cancer cells by vitamin A and its derivatives and their mechanisms of action.
Takahashi N, Saito D, Hasegawa S, Yamasaki M, Imai M. Takahashi N, et al. Pharmacol Ther. 2022 Feb;230:107942. doi: 10.1016/j.pharmthera.2021.107942. Epub 2021 Jun 24. Pharmacol Ther. 2022. PMID: 34175370 Review.
Vitamin A is an important micro-essential nutrient, whose primary dietary source is retinyl esters. In addition, beta-carotene (pro-vitamin A) is a precursor of vitamin A contained in green and yellow vegetables that is converted to retin
Vitamin A is an important micro-essential nutrient, whose primary dietary source is retinyl esters. In addition, beta-carotene
Vitamin A and the regulation of fat reserves.
Bonet ML, Ribot J, Felipe F, Palou A. Bonet ML, et al. Cell Mol Life Sci. 2003 Jul;60(7):1311-21. doi: 10.1007/s00018-003-2290-x. Cell Mol Life Sci. 2003. PMID: 12943220 Free PMC article. Review.
An emerging example, which is the focus of this review, is the involvement of vitamin A in the regulation of the level and functioning of body fat reserves. Retinoic acid, the carboxylic acid form of vitamin A, is a transcriptional activator of the gen …
An emerging example, which is the focus of this review, is the involvement of vitamin A in the regulation of the level and fun …
Biological evidence to define a vitamin A deficiency cutoff using total liver vitamin A reserves.
Tanumihardjo SA. Tanumihardjo SA. Exp Biol Med (Maywood). 2021 May;246(9):1045-1053. doi: 10.1177/1535370221992731. Epub 2021 Mar 25. Exp Biol Med (Maywood). 2021. PMID: 33765844 Free PMC article. Review.
The vitamin A Dietary Reference Intakes (DRIs) for North Americans suggested that a minimally acceptable total liver vitamin A reserve (TLR) is 0.07 mol/g, which is not explicitly expressed as a vitamin A deficiency cutoff. ...The criteri …
The vitamin A Dietary Reference Intakes (DRIs) for North Americans suggested that a minimally acceptable total liver vitami
Vitamin A as "anti-infective" therapy, 1920-1940.
Semba RD. Semba RD. J Nutr. 1999 Apr;129(4):783-91. doi: 10.1093/jn/129.4.783. J Nutr. 1999. PMID: 10203551 Review.
It is less well known that vitamin A underwent two decades of intense clinical investigation prior to World War II. ...With the advent of the sulfa antibiotics for treatment of infections, scientific interest in vitamin A as "anti-infective" therapy wa …
It is less well known that vitamin A underwent two decades of intense clinical investigation prior to World War II. ...With th …
Vitamin A, differentiation and cancer.
Love JM, Gudas LJ. Love JM, et al. Curr Opin Cell Biol. 1994 Dec;6(6):825-31. doi: 10.1016/0955-0674(94)90051-5. Curr Opin Cell Biol. 1994. PMID: 7880529 Review.
Retinoids, which are derivatives of vitamin A, have a variety of effects on normal cellular differentiation and on the process of carcinogenesis. ...
Retinoids, which are derivatives of vitamin A, have a variety of effects on normal cellular differentiation and on the process …
60,962 results
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