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return kwic search for findings out of >500 occurrences
299123 occurrences (No.77 in the rank) during 5 years in the PubMed. [no cache] 500 found

301) These findings demonstrate that the model of short access to nicotine self-administration has limited validity for tobacco dependence, highlight the translational relevance of the model of extended-intermittent access to nicotine self-administration for tobacco dependence and demonstrate that activation of CRF1 receptors is required for the emergence of abstinence-induced anxiety-like behavior, hyperalgesia and excessive nicotine intake.

--- ABSTRACT ---

PMID:23869743 DOI:10.1111/adb.12077

2015 Addiction biology

* Extended access to nicotine leads to a CRF1 receptor dependent increase in anxiety-like behavior and hyperalgesia in rats.

- Tobacco dependence is associated with the emergence of negative emotional states during withdrawal, including anxiety and nociceptive hypersensitivity. However, the current animal models of nicotine dependence have focused on the mechanisms that mediate the acute reinforcing effects of nicotine and failed to link increased anxiety and pain during abstinence with excessive nicotine self-administration. Here, we tested the hypothesis that the activation of corticotropin-releasing factor-1 (CRF1 ) receptors and emergence of the affective and motivational effects of nicotine abstinence only occur in rats with long access (>21 hours/day, LgA) and not short (1 hour/day, ShA) access to nicotine self-administration. ShA and LgA rats were tested for anxiety-like behavior, nociceptive thresholds, somatic signs of withdrawal and nicotine intake after 3 days of abstinence. The role of CRF1 receptors during abstinence was tested using systemic or intracerebral infusion of MPZP (N,N-bis(2-methoxyethyl)-3-(4-methoxy-2-methylphenyl)-2,5-dimethyl-pyrazolo(1,5α)pyrimidin-7-amine), a CRF1 receptor antagonist, in the central nucleus of the amygdala (CeA). LgA but not ShA rats exhibited abstinence-induced increases in anxiety-like behavior and nociceptive hypersensitivity, which both predicted subsequent excessive nicotine intake and were prevented by systemic administration of MPZP. Intra-CeA MPZP infusion prevented abstinence-induced increases in nicotine intake and nociceptive hypersensitivity. These findings demonstrate that the model of short access to nicotine self-administration has limited validity for tobacco dependence, highlight the translational relevance of the model of extended-intermittent access to nicotine self-administration for tobacco dependence and demonstrate that activation of CRF1 receptors is required for the emergence of abstinence-induced anxiety-like behavior, hyperalgesia and excessive nicotine intake.

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(1)88 suggest	(15)10 revealed	(29)3 for	(43)2 during
(2)27 indicate	(16)9 may	(30)3 highlighted	(44)2 give
(3)24 of	(17)8 show	(31)3 imply	(45)2 hold
(4)23 null	(18)7 showed	(32)3 indicated	(46)2 implicate
(5)23 from	(19)7 underscore	(33)3 regarding	(47)2 into
(6)17 are	(20)6 to	(34)3 that	(48)2 is
(7)17 support	(21)5 suggested	(35)3 the	(49)2 lend
(8)14 provide	(22)4 also	(36)3 will	(50)2 or
(9)12 have	(23)4 included	(37)2 add	(51)2 point
(10)12 highlight	(24)4 on	(38)2 at	(52)2 provided
(11)12 in	(25)4 reveal	(39)2 by	(53)2 related
(12)12 were	(26)4 we	(40)2 call	(54)2 should
(13)11 and	(27)3 could	(41)2 confirm	(55)2 suggesting
(14)10 demonstrate	(28)3 demonstrated	(42)2 contribute	(56)2 suggestive

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--- WordNet output for findings --- =>研究(調査)結果 Overview of noun findings The noun findings has 1 sense (no senses from tagged texts) 1. findings -- (a collection of tools and other articles used by an artisan to make jewelry or clothing or shoes) Overview of noun finding The noun finding has 3 senses (first 3 from tagged texts) 1. (16) determination, finding -- (the act of determining the properties of something, usually by research or calculation; "the determination of molecular structures") 2. (3) finding -- (the decision of a court on issues of fact or law) 3. (1) finding -- (something that is found; "the findings in the gastrointestinal tract indicate that he died several hours after dinner"; "an area rich in archaeological findings") --- WordNet end ---