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[Influence of experimental context on the development of anhedonia in male mice exposed to chronic social stress].
Consumption of 1% sucrose solution supplemented with 0.2% vanillin was studied in two experimental contexts in male mice living under chronic social stress induced by daily experience of defeats in agonistic interactions and leading to development of depression. In the first experiment, vanillin sucrose solution was made available as an option along with water during 10 days for mice living in gro…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Circadian Forced Desynchrony of the Master Clock Leads to Phenotypic Manifestation of Depression in Rats.
In mammals, a master circadian clock within the suprachiasmatic nucleus (SCN) of the hypothalamus maintains the phase coherence among a wide array of behavioral and physiological circadian rhythms. Affective disorders are typically associated with disruption of this fine-tuned "internal synchronization," but whether this internal misalignment is part of the physiopathology of mood disorders is not…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Coping and glucocorticoid receptor regulation by stress inoculation.
Intermittent exposure to mildly stressful situations provides opportunities to practice coping in the context of exposure psychotherapies and stress inoculation training. Previously, we showed that stress inoculation modeled in juvenile monkeys enhances subsequent indications of resilience. Here we examine stress inoculation effects in adult female monkeys. We found that stress inoculation prevent…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Enkephalin downregulation in the nucleus accumbens underlies chronic stress-induced anhedonia.
Restraint and immobilization have been extensively used to study habituation of the neuroendocrine response to a repeated stressor, but behavioral consequences of this stress regimen remain largely uncharacterized. In this study, we used sucrose preference and the elevated-plus maze to probe behavioral alterations resulting from 14 days of restraint in rats. We observed a decrease in sucrose prefe…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Are serotonin transporter knockout mice 'depressed'?: hypoactivity but no anhedonia.
Although the serotonin transporter is a key target for antidepressants, its exact role in depression etiology remains unclear. While serotonin transporter knockout mice are a potential model to examine this problem, their depression profile is unclear in several 'despair' tests, and may be confounded by their hypoactivity phenotype (confirmed here by marble-burying and bedding tests). To assess de…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Fractionating Blunted Reward Processing Characteristic of Anhedonia by Over-Activating Primate Subgenual Anterior Cingulate Cortex.
Anhedonia is a core symptom of depression, but the underlying neurobiological mechanisms are unknown. Correlative neuroimaging studies implicate dysfunction within ventromedial prefrontal cortex, but the causal roles of specific subregions remain unidentified. We addressed these issues by combining intracerebral microinfusions with cardiovascular and behavioral monitoring in marmoset monkeys to sh…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Dopamine receptor D3 deficiency results in chronic depression and anxiety.
Over the last decade accumulating evidence suggests that brain dopamine (DA) has a role in depression, particularly given the high comorbidity of depression with Parkinson's Disease (PD) and the antidepressant effects of the DA receptor subtype 3 (D3R) agonist pramipexole. The present study assesses the role of D3R in depression. Here we hypothesized that D3R mediates the antidepressant effects of…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Dissociation of wanting and liking in the sucrose preference test in dopamine transporter overexpressing rats.
The predominant theory of mesolimbic dopamine function in recent years has been the incentive salience hypothesis, which describes the role of midbrain dopaminergic circuits as encoding 'wanting', but not 'liking' of rewards, resulting in a dissociation of the two functions. However, until now, this dissociation was only established in separate behavioural assays. Here, we propose that the Sucrose…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Palatability changes during attenuation of flavor neophobia assessed with licking microstructure and taste reactivity.
Novel flavors elicit a neophobic response, which attenuates as they are recognized as safe. The attenuation of taste neophobia has been widely studied through measuring overall intake, however, changes in hedonic value have not been systematically considered. We conducted two experiments to assess, in both male and female Sprague-Dawley rats, the hedonic changes across a six-day attenuation of the…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」
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Measuring behavior in mice with chronic stress depression paradigm.
Many studies with chronic stress, a common depression paradigm, lead to inconsistent behavioral results. We are introducing a new model of stress-induced anhedonia, which provides more reproducible induction and behavioral measuring of depressive-like phenotype in mice. First, a 4-week stress procedure induces anhedonia, defined by decreased sucrose preference, in the majority of but not all C57BL…
💬 論文と壁打ち β 残り 3 / 3 回 (今日)Abstract の内容だけを根拠に答えます。医療助言はしません。abstract に無い事実は「記載なし」と返します。質問例: 「要点を3つ教えて」「結論の限界は?」「N数と統計手法は?」「反論できる可能性は?」