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Articles 1 - 12 of 12

Full-Text Articles in Social and Behavioral Sciences

Histamine H1 Receptor Agonist And Control Of Olanzapine-Induced Obesity, Jiamei Lian, Xu-Feng Huang, N Pai, C Deng Sep 2012

Histamine H1 Receptor Agonist And Control Of Olanzapine-Induced Obesity, Jiamei Lian, Xu-Feng Huang, N Pai, C Deng

Xu-Feng Huang

No abstract provided.


Effects Of Simvastatin And 6-Hydroxydopamine Lesion On Histaminergic H1 Receptor Binding In Rat Brains, C H. Hu, C Deng, Xu-Feng Huang, J Chen, Q Wang Sep 2012

Effects Of Simvastatin And 6-Hydroxydopamine Lesion On Histaminergic H1 Receptor Binding In Rat Brains, C H. Hu, C Deng, Xu-Feng Huang, J Chen, Q Wang

Xu-Feng Huang

No abstract provided.


The Effects Of Antipsychotics On The Density Of Cannabinoid Receptors In The Dorsal Vagal Complex Of Rats: Implications For Olanzapine-Induced Weight Gain, Katrina Weston-Green, Xu-Feng Huang, Mei Han, Chao Deng Sep 2012

The Effects Of Antipsychotics On The Density Of Cannabinoid Receptors In The Dorsal Vagal Complex Of Rats: Implications For Olanzapine-Induced Weight Gain, Katrina Weston-Green, Xu-Feng Huang, Mei Han, Chao Deng

Xu-Feng Huang

Some atypical antipsychotics clinically used to treat schizophrenia induce weight gain by unknown mechanisms. The dorsal vagal complex (DVC) of the brainstem and the endogenous cannabinoid system are implicated in the regulation of appetite signalling and food intake. We investigated whether antipsychotic drugs alter cannabinoid receptor-binding density in the DVC. Female Sprague–Dawley rats were treated with olanzapine, haloperidol, aripiprazole or vehicle for 1 wk (short-term) or 12 wk (chronic). Quantitative autoradiographic methods were employed to investigate the binding density of cannabinoid receptors in the DVC using a highly sensitive Beta Imager. Short-term olanzapine induced a significant 39% decrease in cannabinoid …


Decreased Density Of Serotonin 2a Receptors In The Superior Temporal Gyrus In Schizophrenia - A Postmortem Study, Xu-Feng Huang, Chao Deng, Qing Wang, Kai Kang Sep 2012

Decreased Density Of Serotonin 2a Receptors In The Superior Temporal Gyrus In Schizophrenia - A Postmortem Study, Xu-Feng Huang, Chao Deng, Qing Wang, Kai Kang

Xu-Feng Huang

The superior temporal gyrus (STG) is strongly implicated in the pathophysiology of schizophrenia,particularly with regards to auditory hallucinations. In this study, using in situ quantitative autoradiography in postmortem tissue, we investigated the binding of the [3H]ketanserin to 5-HT2A receptors and [3H] mesulergine to 5-HT2C receptors in the left STG of 8 male schizophrenic patients compared to 8 control subjects. A strong [3H]ketanserin binding was observed in the STG, however there was a very weak [3H] mesulergine binding in the STG. A significant decrease in binding of [3H]ketanserin was clearly observed in schizophrenia patients in comparison with control subjects. There were …


The Schizophrenia Susceptibility Gene Neuregulin 1 Modulates Tolerance To The Effects Of Canabinoids, Aurelie Boucher, Glenn E. Hunt, Jacques Micheau, Xu-Feng Huang, Iain Mcgregor, Tim Karl, Jonathon Arnold Sep 2012

The Schizophrenia Susceptibility Gene Neuregulin 1 Modulates Tolerance To The Effects Of Canabinoids, Aurelie Boucher, Glenn E. Hunt, Jacques Micheau, Xu-Feng Huang, Iain Mcgregor, Tim Karl, Jonathon Arnold

Xu-Feng Huang

Cannabis increases the risk of schizophrenia in genetically vulnerable individuals. In this study we aim to show that the schizophrenia susceptibility gene neuregulin 1 (Nrg1) modulates the development of tolerance to cannabinoids in mice. Nrg1 heterozygous (HET) and wild-type (WT) mice were treated daily for 15 d with the synthetic analogue of D9-tetrahydrocannabinol, CP55,940 (0.4 mg/kg). We measured the impact of this exposure on locomotor activity, anxiety, prepulse inhibition (PPI), body temperature and FosB/DFosB immunohistochemistry. Tolerance to CP55,940-induced hypothermia and locomotor suppression developed more rapidly in Nrg1 HET mice than WT mice. Conversely in the light-dark test, while tolerance to …


Short Term Effects Of Energy Restriction And Dietary Fat Sub-Type On Weight Loss And Disease Risk Factors, Linda C. Tapsell, Marijka Batterham, Xu-Feng Huang, Sze Yen Tan, Grigorijs Teuss, Karen E. Charlton, Jane E. O'Shea, Eva M. Warensjo Sep 2012

Short Term Effects Of Energy Restriction And Dietary Fat Sub-Type On Weight Loss And Disease Risk Factors, Linda C. Tapsell, Marijka Batterham, Xu-Feng Huang, Sze Yen Tan, Grigorijs Teuss, Karen E. Charlton, Jane E. O'Shea, Eva M. Warensjo

Xu-Feng Huang

Background and aims: Decreasing energy intake relative to energy expenditure is the indisputable tenet of weight loss. In addition to caloric restriction modification of the type of dietary fat may provide further benefits. The aim of the present study was to examine the effect of energy restriction alone and with dietary fat modification on weight loss and adiposity, as well as on risk factors for obesity related disease. Methods and results: One-hundred and fifty overweight men and women were randomized into a 3 month controlled trial with four low fat (30% energy) dietary arms: (1) isocaloric (LF); (2) isocaloric with …


The Comparison Of The Effect Of Oat And Shiitake Mushroom Powder To Prevent Body Weight Gain In Rats Fed High Fat Diet, Dian Handayani, Barbara J. Meyer, Jiezhong Chen, Patricia Tang, Philip Chi Lip Kwok, Hak-Kim Chan, Xu-Feng Huang Sep 2012

The Comparison Of The Effect Of Oat And Shiitake Mushroom Powder To Prevent Body Weight Gain In Rats Fed High Fat Diet, Dian Handayani, Barbara J. Meyer, Jiezhong Chen, Patricia Tang, Philip Chi Lip Kwok, Hak-Kim Chan, Xu-Feng Huang

Xu-Feng Huang

Preventing obesity could be done by lowering plasma TAG that inhibits adipogenesis. Oat and mushroom beta-glucans in the diet has been reported to lower plasma lipid; however the data focusing on their effects on TAG and obesity are insufficient. In the present study, lowering plasma triacylglycerol, fat deposition, body weight gain (BWG) in rats fed a high fat diet (HFD) was evaluated. Rats in the control group were given HFD only and rats in the treatment group fed HFD enriched with 0.2%, 0.6% and 1.8% (wt:wt) beta-glucan from oats (LD-O, MD-O, HD-O) or mushroom (LD-M, MD-M, HD-M). After 6 weeks …


A Behavioural Comparison Of Acute And Chronic Δ9-Tetrahydrocannabinol And Cannabidiol In C57bl/6jarc Mice, Ian Mcgregor, Xu-Feng Huang, Tim Karl, Jonathon Arnold, Rose Chesworth, Leonora E. Long Sep 2012

A Behavioural Comparison Of Acute And Chronic Δ9-Tetrahydrocannabinol And Cannabidiol In C57bl/6jarc Mice, Ian Mcgregor, Xu-Feng Huang, Tim Karl, Jonathon Arnold, Rose Chesworth, Leonora E. Long

Xu-Feng Huang

Cannabis contains over 70 unique compounds and its abuse is linked to an increased risk of developing schizophrenia. The behavioural profiles of the psychotropic cannabis constituent Δ9-tetrahydrocannabinol (Δ9-THC) and the non-psychotomimetic constituent cannabidiol (CBD) were investigated with a battery of behavioural tests relevant to anxiety and positive, negative and cognitive symptoms of schizophrenia. Male adult C57BL/6JArc mice were given 21 daily intraperitoneal injections of vehicle, Δ9-THC (0.3, 1, 3 or 10 mg/kg) or CBD (1, 5, 10 or 50 mg/kg). Δ9-THC produced the classic cannabinoid CB1 receptor-mediated tetrad of hypolocomotion, analgesia, catalepsy and hypothermia while CBD had modest hyperthermic effects. …


Simvastatin Prevents Dopaminergic Neurodegeneration In Experimental Parkinsonian Models: The Association With Anti-Inflammatory Responses, Junqiang Yan, Yunqi Xu, Cansheng Zhu, Limin Zhang, Aimin Wu, Yu Yang, Zhaojun Xiong, Chao Deng, Xu-Feng Huang, Midori A. Yenari, Yuan-Guo Yang, Weihai Ying, Qing Wang Sep 2012

Simvastatin Prevents Dopaminergic Neurodegeneration In Experimental Parkinsonian Models: The Association With Anti-Inflammatory Responses, Junqiang Yan, Yunqi Xu, Cansheng Zhu, Limin Zhang, Aimin Wu, Yu Yang, Zhaojun Xiong, Chao Deng, Xu-Feng Huang, Midori A. Yenari, Yuan-Guo Yang, Weihai Ying, Qing Wang

Xu-Feng Huang

Background: In addition to their original applications to lowering cholesterol, statins display multiple neuroprotective effects. N-methyl-D-aspartate (NMDA) receptors interact closely with the dopaminergic system and are strongly implicated in therapeutic paradigms of Parkinson’s disease (PD). This study aims to investigate how simvastatin impacts on experimental parkinsonian models via regulating NMDA receptors. Methodology/Principal Findings: Regional changes in NMDA receptors in the rat brain and anxiolytic-like activity were examined after unilateral medial forebrain bundle lesion by 6-hydroxydopamine via a 3-week administration of simvastatin. NMDA receptor alterations in the post-mortem rat brain were detected by [3H]MK-801(Dizocilpine) binding autoradiography. 6-hydroxydopamine treated PC12 was applied …


Examining The Pathways Linking Chronic Sleep Restriction To Obesity, Christopher A. Magee, Xu-Feng Huang, Donald C. Iverson, Peter Caputi Sep 2012

Examining The Pathways Linking Chronic Sleep Restriction To Obesity, Christopher A. Magee, Xu-Feng Huang, Donald C. Iverson, Peter Caputi

Xu-Feng Huang

A growing number of studies have identified chronic sleep restriction as a potential risk factor for obesity. This could have important implications for how obesity is prevented and managed, but current understanding of the processes linking chronic sleep restriction to obesity is incomplete. In this paper, we examined some of the pathways that could underlie the relationship between chronic sleep restriction and obesity. This involved exploring some of the potential environmental, health, behavioral, and sociodemographic determinants of chronic sleep restriction, which require further investigation in this context. Three pathways that could potentially link chronic sleep restriction to obesity were then …


Immune Factors In The Neuregulin-1 Knockout Mouse Model Of Schizophrenia, P Snikeris, Xu-Feng Huang, Elisabeth T. Frank Sep 2012

Immune Factors In The Neuregulin-1 Knockout Mouse Model Of Schizophrenia, P Snikeris, Xu-Feng Huang, Elisabeth T. Frank

Xu-Feng Huang

No abstract provided.


Diet Composition And Insulin Action In Animal Models, Leonard H. Storlien, J Higgins, T C. Thomas, Marc A. Brown, Hong-Qin Wang, Xu-Feng Huang, Paul Else Sep 2012

Diet Composition And Insulin Action In Animal Models, Leonard H. Storlien, J Higgins, T C. Thomas, Marc A. Brown, Hong-Qin Wang, Xu-Feng Huang, Paul Else

Xu-Feng Huang

No abstract provided.