Artículo

Thanos, P.K.; Rivera, S.N.; Weaver, K.; Grandy, D.K.; Rubinstein, M.; Umegaki, H.; Wang, G.J.; Hitzemann, R.; Volkow, N.D. "Dopamine D2R DNA transfer in dopamine D2 receptor-deficient mice: Effects on ethanol drinking" (2005) Life Sciences. 77(2):130-139
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Abstract:

Dopamine (DA) signals are transmitted via specific receptors including the D2 receptors (D2R). Previous studies have shown that D2R upregulation in the nucleus accumbens (NAc) attenuated alcohol consumption. We hypothesized that upregulation of D2R in the NAc would significantly influence alcohol drinking. We tested this hypothesis by determining the effect that D2R upregulation has on alcohol intake in genetically altered mice lacking D2Rs. After a steady baseline of drinking behavior was established for all mice, a null vector or a genetically modified adenoviral vector containing the rat D2R cDNA was infused into the NAc of wild-type (Drd2+/+), heterozygous (Drd2+/-), and receptor-deficient mice (Drd2-/-). Ethanol intake and preference were then determined using the two-bottle choice paradigm. Our results indicated that Drd2+/+ mice treated with the D2R vector significantly attenuated (58 %) their ethanol intake as well as reduced preference. Drd2+/- and mutant mice showed a similar attenuation, although the change was not as marked (12 %) and did not last as long. In contrast, Drd2-/- mice treated with the D2R vector displayed a temporary but significant increase (46 %) in ethanol intake and preference (consumption). These results supported the notion that the D2R plays an important role in alcohol consumption in mice and suggest that a key threshold range of D2R levels is associated with elevated alcohol consumption. Significant deviations in D2R levels from this range could impact alcohol consumption, and could help to explain possible individual variations in alcohol response, metabolism, sensitivity and consumption. © 2005 Elsevier Inc. All rights reserved.

Registro:

Documento: Artículo
Título:Dopamine D2R DNA transfer in dopamine D2 receptor-deficient mice: Effects on ethanol drinking
Autor:Thanos, P.K.; Rivera, S.N.; Weaver, K.; Grandy, D.K.; Rubinstein, M.; Umegaki, H.; Wang, G.J.; Hitzemann, R.; Volkow, N.D.
Filiación:Department of Medicine, Brookhaven National Laboratory, Upton, NY 11973-5000, United States
Dept. of Behavioral Neuroscience, Oregon Health and Science University, Portland, OR 97201, United States
INGEBI (CONICET), Dept. Fisiol., Biol. Molec. Y Cel., University of Buenos Aires, 1428 Buenos Aires, Argentina
Dept. of Geriatrics, Univ. of Nagoya, School of Medicine, Aichi 466-8550, Japan
Palabras clave:Addiction; Alcoholism; Associative learning; Gene therapy; adenovirus vector; alcohol; complementary DNA; DNA; dopamine 2 receptor; alcohol consumption; alcohol metabolism; animal experiment; article; controlled study; DNA modification; DNA transfer; drinking behavior; heterozygosity; male; mouse; nonhuman; nucleus accumbens; receptor upregulation; wild type
Año:2005
Volumen:77
Número:2
Página de inicio:130
Página de fin:139
DOI: http://dx.doi.org/10.1016/j.lfs.2004.10.061
Título revista:Life Sciences
Título revista abreviado:Life Sci.
ISSN:00243205
CODEN:LIFSA
CAS:alcohol, 64-17-5; DNA, 9007-49-2
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00243205_v77_n2_p130_Thanos

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Citas:

---------- APA ----------
Thanos, P.K., Rivera, S.N., Weaver, K., Grandy, D.K., Rubinstein, M., Umegaki, H., Wang, G.J.,..., Volkow, N.D. (2005) . Dopamine D2R DNA transfer in dopamine D2 receptor-deficient mice: Effects on ethanol drinking. Life Sciences, 77(2), 130-139.
http://dx.doi.org/10.1016/j.lfs.2004.10.061
---------- CHICAGO ----------
Thanos, P.K., Rivera, S.N., Weaver, K., Grandy, D.K., Rubinstein, M., Umegaki, H., et al. "Dopamine D2R DNA transfer in dopamine D2 receptor-deficient mice: Effects on ethanol drinking" . Life Sciences 77, no. 2 (2005) : 130-139.
http://dx.doi.org/10.1016/j.lfs.2004.10.061
---------- MLA ----------
Thanos, P.K., Rivera, S.N., Weaver, K., Grandy, D.K., Rubinstein, M., Umegaki, H., et al. "Dopamine D2R DNA transfer in dopamine D2 receptor-deficient mice: Effects on ethanol drinking" . Life Sciences, vol. 77, no. 2, 2005, pp. 130-139.
http://dx.doi.org/10.1016/j.lfs.2004.10.061
---------- VANCOUVER ----------
Thanos, P.K., Rivera, S.N., Weaver, K., Grandy, D.K., Rubinstein, M., Umegaki, H., et al. Dopamine D2R DNA transfer in dopamine D2 receptor-deficient mice: Effects on ethanol drinking. Life Sci. 2005;77(2):130-139.
http://dx.doi.org/10.1016/j.lfs.2004.10.061