Abstract：
BACKGROUND:Overconsumption of calorically dense foods contributes substantially to the current obesity epidemic. The adiposity hormone leptin has been identified as a potential modulator of reward-induced feeding. The current study asked whether leptin signaling within the lateral hypothalamus (LH) and midbrain is involved in effort-based responding for food rewards and/or the modulation of mesolimbic dopamine. METHODS:The contribution of endogenous leptin signaling for food motivation and mesolimbic dopamine tone was examined after viral-mediated reduction of the leptin receptor within LH and midbrain neurons in male rats. RESULTS:Knockdown of leptin receptors selectively in the LH caused increased body weight, caloric consumption, and body fat in rats maintained on a calorically dense diet. Knockdown of leptin receptors selectively in midbrain augmented progressive ratio responding for sucrose and restored high-fat, diet-induced suppression of dopamine content in the nucleus accumbens. CONCLUSIONS:In summary, endogenous leptin signaling in the hypothalamus restrains the overconsumption of calorically dense foods and the consequent increase in body mass, whereas leptin action in the midbrain regulates effort-based responding for food rewards and mesolimbic dopamine tone. These data highlight the ability of leptin to regulate overconsumption of palatable foods and food motivation through pathways that mediate energy homeostasis and reward, respectively.
journal_name
Biol Psychiatryjournal_title
Biological psychiatryauthors
Davis JF,Choi DL,Schurdak JD,Fitzgerald MF,Clegg DJ,Lipton JW,Figlewicz DP,Benoit SCdoi
10.1016/j.biopsych.2010.08.028subject
Has Abstractpub_date
2011-04-01 00:00:00pages
668-74issue
7eissn
0006-3223issn
1873-2402pii
S0006-3223(10)00912-1journal_volume
69pub_type
杂志文章abstract：:Disturbances in dopaminergic transmission have been implicated in the etiology of psychotic disorders. Interindividual differences in deoxyribonucleic acid (DNA) sequences coding for dopamine receptor proteins might contribute to the genetic background of these diseases. We have identified a variation in exon 1 of the...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(93)90236-7
更新日期：1993-10-01 00:00:00
abstract：:Performance on tasks tapping automatic and voluntary aspects of memory, attention, and motor speed was examined in 14 patients with major depressive disorder, before and after 3 weeks of treatment with clomipramine (150 mg/day), a potent serotonin and noradrenaline uptake blocker with anticholinergic side effects. Per...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(91)90179-p
更新日期：1991-12-01 00:00:00
abstract：BACKGROUND:Increased physical activity is a common feature of anorexia nervosa (AN). Although high activity levels are associated with greater risk of developing AN, particularly when combined with dieting, most individuals who diet and exercise maintain a healthy body weight. It is unclear why some individuals develop...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2020.06.030
更新日期：2020-07-16 00:00:00
abstract：BACKGROUND:Reduction of precuneus choline acetyltransferase activity co-occurs with greater beta-amyloid (Aβ) in Alzheimer's disease (AD). Whether this cholinergic deficit is associated with alteration in nerve growth factor (NGF) signaling and its relation to Aβ plaque and neurofibrillary tangle (NFT) pathology during...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2013.12.016
更新日期：2015-04-15 00:00:00
abstract：:Seven women with histories of puerperal psychosis and four with histories of puerperal major depression were consecutively treated with high-dose oral estrogen immediately following delivery. None of the women had histories of nonpuerperal affective disorder, and all women were affectively well throughout the current ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(95)00063-1
更新日期：1995-12-15 00:00:00
abstract：:The possibility of characterizing subgroups of depressive disorders by biological markers was studied by means of the dexamethasone suppression test (DST), the 24-hr urinary free cortisol (UFC), the growth hormone response to the insulin tolerance test (ITT), and polygraphic sleep recordings. Forty-five hospitalized p...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：
更新日期：1982-11-01 00:00:00
abstract：BACKGROUND:Gray and white matter volume deficits have been reported in many structural magnetic resonance imaging (MRI) studies of children with attention-deficit/hyperactivity disorder (ADHD); however, there is a paucity of structural MRI studies of adults with ADHD. This study used voxel based morphometry and applied...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2010.09.053
更新日期：2011-05-01 00:00:00
abstract：BACKGROUND:Few studies have sought to identify, in a regionally unbiased way, the precise cortical and subcortical regions that are affected by white matter abnormalities in attention-deficit/hyperactivity disorder (ADHD). This study aimed to derive a comprehensive, whole-brain characterization of connectomic disturban...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2013.12.013
更新日期：2014-10-15 00:00:00
abstract：BACKGROUND:The endocannabinoid anandamide may be involved in the regulation of emotional reactivity. In particular, it has been shown that pharmacological inhibition of the enzyme fatty acid amide hydrolase (FAAH), which catalyzes the intracellular hydrolysis of anandamide, elicits anxiolytic-like and antidepressant-li...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2006.12.001
更新日期：2007-11-15 00:00:00
abstract：BACKGROUND:Neuroimaging data suggest that deficits in ventral prefrontal cortex (VPFC) function in bipolar disorder (BD) progress during adolescence and young adulthood. However, the developmental trajectory of VPFC morphological abnormalities in BD is unknown. This study investigated potential age-dependent volume abn...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2005.08.031
更新日期：2006-04-01 00:00:00
abstract：BACKGROUND:Neurochemical and electrophysiological studies indicate that the locus coeruleus (LC)-norepinephrine system is activated by physiological and external stressors. This activation is mediated in part by corticotropin-releasing factor (CRF), the hypothalamic neurohormone that initiates the endocrine response to...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(99)00213-9
更新日期：1999-11-15 00:00:00
abstract：:A patient with tardive neuroleptic-induced akathisia was investigated with multiple pharmacological challenges. It was noted that the patient responded positively to benztropine, bromocriptine, and propranolol, and negatively to physostigmine, and showed little or no response to discontinuation of neuroleptics and cha...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/0006-3223(90)90515-4
更新日期：1990-11-01 00:00:00
abstract：BACKGROUND:Norepinephrine and dopamine mediate important aspects of alcoholism and alcohol withdrawal. Dopamine-beta-hydroxylase (DbetaH) converts dopamine to norepinephrine. A recent study demonstrated a strong association between variance in plasma DbetaH activity and a novel polymorphism (DBH-1021C-->T) at the struc...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(02)01427-0
更新日期：2002-12-15 00:00:00
abstract：BACKGROUND:Although neuropsychological and neuroimaging studies of obsessive-compulsive disorder (OCD) have implicated the frontal cortex and subcortical structures in the pathophysiology of the disorder, few studies have examined cognitive function in patients with OCD on tasks validated in the assessment of frontal l...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/s0006-3223(97)00201-1
更新日期：1998-03-01 00:00:00
abstract：:Cerebrospinal fluid beta-endorphin-like immunoreactivity (CSF BLI) was determined for 69 patients who met DSM-III criteria for delirium and for 8 controls. The CSF BLI was significantly lower in the delirious patient group than in the controls (12.5 +/- 3.0 pg/ml versus 15.0 +/- 3.4 pg/ml, p less than 0.05). CSF BLI h...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(89)90273-4
更新日期：1989-04-01 00:00:00
abstract：:A morphometric magnetic resonance imaging (MRI) study compared volumes of brain structures in 10 female subjects with trichotillomania (repetitive hair-pulling) versus 10 normal controls matched for sex, age, handedness, and education. Three-dimensional MRI scans were blindly normalized and segmented using well-charac...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/S0006-3223(96)00297-1
更新日期：1997-07-01 00:00:00
abstract：BACKGROUND:Regional brain perfusion in patients during alcohol-withdrawal has been relatively less studied with brain SPECT technique. In this study, the hypothesis that possible regional cerebral blood flow (rCBF) alterations due to alcohol withdrawal might be transitory in a homogenous group of alcoholic patients in ...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/s0006-3223(97)00322-3
更新日期：1998-06-15 00:00:00
abstract：BACKGROUND:Despite widely replicated abnormalities of gamma-aminobutyric acid (GABA) neurons in schizophrenia postmortem, few studies have measured tissue GABA levels in vivo. We used proton magnetic resonance spectroscopy to measure tissue GABA levels in participants with schizophrenia and healthy control subjects in ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2010.05.016
更新日期：2010-10-01 00:00:00
abstract：:Few data exist that assess the presence of reversed and positive neurovegetative symptoms through successive depressive episodes. To assess the stability of depressive symptoms across episodes, we studied 74 outpatients with atypical unipolar major depression, diagnosed by the Structured Clinical Interview for DSM-III...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/0006-3223(96)00029-7
更新日期：1996-10-15 00:00:00
abstract：BACKGROUND:Chronic stress is a major health concern, often leading to depression, anxiety, or when severe enough, posttraumatic stress disorder. While many studies demonstrate that the amygdala is hyperresponsive in patients with these disorders, the cellular neurophysiological effects of chronic stress on the systems ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2010.02.008
更新日期：2010-06-15 00:00:00
abstract：:Studies at the basic and clinical levels demonstrate that neuronal atrophy and cell death occur in response to stress and in the brains of depressed patients. Although the mechanisms have yet to be fully elucidated, progress has been made in characterizing the signal transduction cascades that control neuronal atrophy...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(00)00935-5
更新日期：2000-10-15 00:00:00
abstract：BACKGROUND:Results on the association between depression and the hypothalamo-pituitary-adrenal (HPA) axis have been inconsistent, possibly due to heterogeneity of the DSM-IV category of depression. Specific symptom-dimensions could be used as a more homogenous phenotype in HPA-axis research. METHODS:Subjects (n = 1029...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2010.09.005
更新日期：2011-02-15 00:00:00
abstract：BACKGROUND:Schizophrenia risk is associated with both genetic and environmental risk factors. Furthermore, cognitive abnormalities are established core characteristics of schizophrenia. We aim to assess whether a classification approach encompassing risk factors, cognition, and their associations can discriminate patie...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2019.11.007
更新日期：2020-04-15 00:00:00
abstract：BACKGROUND:Exaggerated corticotropin (ACTH) and cortisol response to the combined dexamethasone (DEX)/corticotropin releasing hormone (CRH) test, indicating impaired regulation of the hypothalamus-pituitary-adrenocortical (HPA) system, is frequently observed in depression. In the present study, we examined whether chan...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2006.07.039
更新日期：2007-07-01 00:00:00
abstract：BACKGROUND:There is amassing evidence that risky decision-making in bipolar disorder is related to reward-based differences in frontostriatal regions. However, the roles of early attentional and later cognitive processes remain unclear, limiting theoretical understanding and development of targeted interventions. METH...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2015.03.014
更新日期：2016-02-15 00:00:00
abstract：:Research on mood and anxiety disorders has historically proceeded without sufficient reference to the growing body of work on the nature of typical emotional development and temperament. Reviewing data from several studies, we consider experiential, biological, and genetic factors as providing causal input to typical ...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/s0006-3223(00)01003-9
更新日期：2000-12-15 00:00:00
abstract：BACKGROUND:Anxiety disorders are associated with disruptions in both emotional processing and decision making. As a result, anxious individuals often make decisions that favor harm avoidance. However, this bias could be driven by enhanced aversion to uncertainty about the decision outcome (e.g., risk) or aversion to ne...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2016.12.010
更新日期：2017-06-15 00:00:00
abstract：:Eighteen unmedicated patients suffering from major depressive disorder with melancholia (DSM-III) were examined for abnormalities in peripheral serotonin (5-HT) and related metabolites. Serotonin in platelet-free plasma and in platelets from melancholics was significantly reduced to 30% and 60% of their respective con...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(87)90100-4
更新日期：1987-12-01 00:00:00
abstract：:The authors present a case report of neuroleptic malignant syndrome (NMS) in a patient commencing treatment with fluoxetine alone who had previously been treated with several antipsychotic and antidepressant combinations. On reviewing the literature on the pathogenesis of NMS, the authors hypothesize a facilitative ro...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(90)90485-k
更新日期：1990-09-15 00:00:00
abstract：:The addition of lithium to perphenazine altered the pattern of plasma homovanillic acid (HVA) during the course of treatment for acute psychosis. In the perphenazine-treated group plasma HVA declined significantly by days 7-9 of treatment, whereas in the perphenazine-plus-lithium group plasma HVA tended to increase. T...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(92)90190-b
更新日期：1992-12-15 00:00:00
