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

Year Number of Results
1960 2
1961 1
1962 1
1963 2
1964 1
1966 1
1967 1
1968 2
1970 3
1971 1
1972 7
1973 16
1974 30
1975 51
1976 75
1977 100
1978 107
1979 135
1980 154
1981 327
1982 546
1983 627
1984 753
1985 728
1986 787
1987 907
1988 870
1989 1004
1990 1055
1991 1124
1992 1146
1993 1207
1994 1314
1995 1334
1996 1274
1997 1180
1998 1193
1999 1119
2000 1095
2001 1052
2002 1061
2003 1023
2004 975
2005 1079
2006 1051
2007 1038
2008 981
2009 884
2010 886
2011 840
2012 827
2013 731
2014 644
2015 648
2016 543
2017 480
2018 436
2019 132
2020 2
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33,790 results
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Page 1
Slc:Wistar outbred rats show close genetic similarity with F344 inbred rats.
Nakanishi S, et al. Exp Anim 2015. PMID 25195633 Free PMC article.
Although Slc:Wistar rats are used widely in biomedical research as outbred rats, close similarities in growth curves, survival rates, and immunological and biochemical phenotypes have been reported between Slc:Wistar and F344 inbred rats. ...These findings indicate the low genetic variation in Slc:Wistar rats and the high genetic similarity between the Slc:Wistar and F344 inbred rats. ...
Although Slc:Wistar rats are used widely in biomedical research as outbred rats, close similarities in growth curves, survival …
MOH accumulation in F344 rats.
Fleming K and Carrillo JC. Sci Total Environ 2018. PMID 29751414
Effects of neonatal handling on play and anxiety in F344 and Lewis rats.
Siviy SM. Dev Psychobiol 2018. PMID 29521416 Free PMC article.
When compared to rats from control litters, handled LEW, and F344 rats were more likely to respond to nape contacts with complete rotations, suggesting that handling increased playful responsiveness to a comparable extent in both strains. SD rats paired with handled inbred rats had more nape contacts than those paired with non-handled rats. While handled LEW rats also tended to direct more nape contacts to the SD partner than non-handled LEW rats there was no difference between handled and non-handled F344 rats. ...
When compared to rats from control litters, handled LEW, and F344 rats were more likely to respond to nape contacts wit …
Air puff-induced 22-kHz calls in F344 rats.
Inagaki H and Sato J. Physiol Behav 2016. PMID 26723270
Therefore, we considered it necessary to assess air puff-induced 22-kHz calls in inbred rats. In this study, we assessed differences in air puff-induced 22-kHz calls between inbred F344 rats and outbred Wistar rats. Male F344 rats displayed similar total (summed) duration of air puff-induced 22 kHz vocalizations to that of male Wistar rats, however, Wistar rats emitted fewer calls of longer duration, while F344 rats emitted higher number of vocalizations of shorter duration. ...
Therefore, we considered it necessary to assess air puff-induced 22-kHz calls in inbred rats. In this study, we assessed diffe …
A rat RNA-Seq transcriptomic BodyMap across 11 organs and 4 developmental stages
Yu Y, et al. Nat Commun 2014. PMID 24510058 Free PMC article.
Here we show, as part of the SEQC consortium efforts, a comprehensive rat transcriptomic BodyMap created by performing RNA-Seq on 320 samples from 11 organs of both sexes of juvenile, adolescent, adult and aged Fischer 344 rats. ...
Here we show, as part of the SEQC consortium efforts, a comprehensive rat transcriptomic BodyMap created by performing RNA-Seq on 320 sample …
Lewis and Fischer 344 rats as a model for genetic differences in spatial learning and memory: Cocaine effects.
Fole A, et al. Prog Neuropsychopharmacol Biol Psychiatry 2017. PMID 28263897
LEW cocaine treated rats showed a better performance in the Y maze than their saline counterparts, an effect that was not evident in the F344 strain. ...Moreover, hippocampal spine density was cocaine-modulated in LEW animals whereas no effects were found in F344 rats. We propose that differences in addictive-like behavior between LEW and F344 rats could be related to differences in hippocampal learning and memory processes that could be on the basis of individual vulnerability to cocaine addiction....
LEW cocaine treated rats showed a better performance in the Y maze than their saline counterparts, an effect that was not evident in …
[Comparison of characteristics between F344 and Slc:Wistar rats--Slc:Wistar rats cannot be distinguished from the F344 strain].
Tayama K, et al. Jikken Dobutsu 1986. PMID 3519248 Japanese.
The bladder carcinomas that originated from F344/DuCrj rats grew subcutaneously in the other F344 strains and Slc: Wistar rats, but did not grow in the other Wistar-derived strains. ...These results suggest that Slc: Wistar rats cannot be distinguished genetically from the F344 strain of rats....
The bladder carcinomas that originated from F344/DuCrj rats grew subcutaneously in the other F344 strains and Slc: Wist …
Establishment and characteristics of four sub-strains of F344 rats reared on various low protein and low energy diets.
Shumiya S, et al. Exp Anim 2000. PMID 11109537 Free article.
Though F344/Tig3 rats, which were reared on minimum nutrients, showed a tendency to delayed puberty, we were easily able to breed four pairs in every generation using procedures similar to those used for other strains of rats. There were no differences among the F344/Tig1 to -3 strains of rats in body length, digestive tract length, or organ weight per body weight, and all the rats had a normal range of biochemical values. ...
Though F344/Tig3 rats, which were reared on minimum nutrients, showed a tendency to delayed puberty, we were easily able to br …
Populations of follicles in F344/N rats during aging.
Nishijima K, et al. Reprod Biol 2013. PMID 23719120
Follicular populations were investigated in female F344/N rats to better understand the aging process of the rat ovary. Ovaries dissected at various ages (spanning 1-36 months old) were submitted for histological examination. ...Several healthy follicles and CL were observed even in 36-month-old rats....
Follicular populations were investigated in female F344/N rats to better understand the aging process of the rat ovary. Ovarie …
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