Medicine and Health Sciences Commons^™

Central Administrations Of Palmitic Acid And Arachidonic Acid Decrease Central Leptin Sensitivity In Mice, L Cheng, Xu-Feng Huang, Y Yu

Xu-Feng Huang

Purpose: Leptin inhibits feeding and increases energy expenditure through the central nervous system. High-fat diet with saturated fatty acids (SFA) or n-6 polyunsaturated fatty acids (n-6 PUFA) has been reported to induce central leptin resistance and obesity. However, little is known if central administration of SFA or n-6 PUFA can reduce central leptin sensitivity. This study examined the central leptin sensitivity in response to intracerebroventricular (i.c.v.) injection of SFA, palmitic acid (PA) and n-6 PUFA, arachidonic acid (ARA) in mice. Methods: After overnight fasting, C57BL/6J male mice (n=24/group) were i.c.v. injected with either PA (50pmol/2ul), ARA (50pmol/2ul) or vehicle (saline, …

Arcuate Npy Controls Sympathetic Output And Bat Function Via A Relay Of Tyrosine Hydroxylase Neurons In The Pvn, Yan-Chuan Shi, Jackie Lau, Zhou Lin, Hui Zhang, Lei Zhai, Guenther Sperk, Regine Heilbronn, Mario Mietzsch, Stefan Weger, Xu-Feng Huang, Ronaldo F. Enriquez, Lesley Castillo, Paul A. Baldock, Lei Zhang, Amanda Sainsbury, Herbert Herzog, Shu Lin

Xu-Feng Huang

Neuropepetide Y (NPY) is best known for its powerful stimulation of food intake and its effects on reducing energy expenditure. However, the pathways involved and the regulatory mechanisms behind this are not well understood. Here we demonstrate that NPY derived from the arcuate nucleus (Arc) is critical for the control of sympathetic outflow and brown adipose tissue (BAT) function. Mechanistically, a key change induced by Arc NPY signaling is a marked Y1 receptor-mediated reduction in tyrosine hydroxylase (TH) expression in the hypothalamic paraventricular nucleus (PVN), which is also associated with a reduction in TH expression in the locus coeruleus (LC) …

A Neuregulin 1 Transmembrane Domain Mutation Causes Imbalanced Glutamatergic And Dopaminergic Receptor Expression In Mice, K A. Newell, T Karl, Xu-Feng Huang

Xu-Feng Huang

The neuregulin 1 gene has repeatedly been identified as a susceptibility gene for schizophrenia, thus mice with genetic mutations in this gene offer a valuable tool for studying the role of neuregulin 1 in schizophrenia-related neurotransmission. In this study, slide-based receptor autoradiography was used to quantify glutamatergic N-methyl-d-aspartate (NMDA), dopaminergic D2, cannabinoid CB1 and acetylcholine M1/4 receptor levels in the brains of male heterozygous transmembrane domain neuregulin 1 mutant (Nrg1+/−) mice at two ages. Mutant mice expressed small but significant increases in NMDA receptor levels in the cingulate cortex (7%, p = 0.044), sensory cortex (8%, p = 0.024), and …

Arcuate Npy Controls Sympathetic Output And Bat Function Via A Relay Of Tyrosine Hydroxylase Neurons In The Pvn, Yan-Chuan Shi, Jackie Lau, Zhou Lin, Hui Zhang, Lei Zhai, Guenther Sperk, Regine Heilbronn, Mario Mietzsch, Stefan Weger, Xu-Feng Huang, Ronaldo F. Enriquez, Lesley Castillo, Paul A. Baldock, Lei Zhang, Amanda Sainsbury, Herbert Herzog, Shu Lin

Xu-Feng Huang

Neuropepetide Y (NPY) is best known for its powerful stimulation of food intake and its effects on reducing energy expenditure. However, the pathways involved and the regulatory mechanisms behind this are not well understood. Here we demonstrate that NPY derived from the arcuate nucleus (Arc) is critical for the control of sympathetic outflow and brown adipose tissue (BAT) function. Mechanistically, a key change induced by Arc NPY signaling is a marked Y1 receptor-mediated reduction in tyrosine hydroxylase (TH) expression in the hypothalamic paraventricular nucleus (PVN), which is also associated with a reduction in TH expression in the locus coeruleus (LC) …

An Analysis Of Metabotropic Glutamate Receptors 2/3 And 5 In Schizophrenia, Major Depression And Bipolar Disorder From The Stanley Neuropathology Consortium, N Matosin, E Frank, F Fernandez, C Deng, J Wong, Xu-Feng Huang, K A. Newell

Xu-Feng Huang

Purpose: Metabotropic glutamate receptors (mGluRs) are proposed novel therapeutic targets for a variety of brain disorders such as schizophrenia (SZ), bipolar disorder (BP) and major depression (MD). Despite their potential, the involvement of these receptors in these pathological processes is uncertain. This information is crucial to understand the efficiency of drugs that target these receptors. Methods: Using post-mortem human brains, mGluR2/3 and mGluR5 binding densities were measured in the anterior cingulate cortex of SZ, BP, MD and matched controls (CT) (n=15/group) by receptor autoradiography. Results: Whilst preliminary analyses indicated no diagnostic effect in mGluR2/3 or mGluR5 binding densities, mGluR2/3 binding …

A Neuregulin 1 Transmembrane Domain Mutation Causes Imbalanced Glutamatergic And Dopaminergic Receptor Expression In Mice, K A. Newell, T Karl, Xu-Feng Huang

Xu-Feng Huang

The neuregulin 1 gene has repeatedly been identified as a susceptibility gene for schizophrenia, thus mice with genetic mutations in this gene offer a valuable tool for studying the role of neuregulin 1 in schizophrenia-related neurotransmission. In this study, slide-based receptor autoradiography was used to quantify glutamatergic N-methyl-d-aspartate (NMDA), dopaminergic D2, cannabinoid CB1 and acetylcholine M1/4 receptor levels in the brains of male heterozygous transmembrane domain neuregulin 1 mutant (Nrg1+/−) mice at two ages. Mutant mice expressed small but significant increases in NMDA receptor levels in the cingulate cortex (7%, p = 0.044), sensory cortex (8%, p = 0.024), and …

Reflective Frameworks And The Assessment Of Ethical Issues, Ebinepre A. Cocodia

Ebinepre Cocodia

No abstract provided.

On Happiness In Counselling Practice, Ebinepre A. Cocodia

Ebinepre Cocodia

No abstract provided.

Application Of The Occupational Sitting And Physical Activity Questionnaire (Ospaq) To Office Based Workers, Jonine Jancey, Martin Tye, Sarah Mcgann, Krysten Blackford, Andy H. Lee

Sarah McGann

Background

The workplace is a setting where sedentary behaviour is highly prevalent. Accurately measuring physical activity and sedentary behaviour is crucial to assess the impact of behavioural change interventions. This study aimed to evaluate the reliability and criterion validity of the Occupational Sitting and Physical Activity Questionnaire (OSPAQ) and compare with data collected by accelerometers.

Methods

A test-retest study was undertaken on 99 participants using the OSPAQ. Data were then compared to accelerometer records of 41 participants. Reliability was assessed by paired t-test and intra-class correlations (ICC) via a two-way mixed model based on absolute agreement. Difference and agreement were …

Attitudes Towards Anorexia Nervosa: Volitional Stigma Differences In A Sample Of Pre-Clinical Medicine And Psychology Students, Amy Bannatyne, Peta Stapleton

Peta B. Stapleton

Background:

Anorexia nervosa (AN) is a highly stigmatised condition, with treatment often involving multidisciplinary care. As such, understanding and comparing the attitudes of emerging mental health and medical professionals towards AN, within the content of sex-based differences, is pertinent to facilitate the development of targeted stigma interventions.

Aims:

Examine the volitional stigmatisation of AN in emerging medical and mental health professionals.

Method:

Participants (N = 126) were medical (n = 41) and psychology students (n = 85) who completed a range of attitudinal outcome measures (e.g. Causal Attributions Scale, Eating Disorder Stigma Scale, Opinions Scale, Characteristics Scale and Affective Reaction …

Attitudes Toward Substance Abuse Clients: An Empirical Study Of Clinical Psychology Trainees, Chandra Mundon, Melissa Anderson, Lisa Najavits

Melissa L. Anderson

Despite the high prevalence of substance use disorder (SUD) and its frequent comorbidity with mental illness, individuals with SUD are less likely to receive effective SUD treatment from mental health practitioners than SUD counselors. Limited competence and interest in treating this clinical population are likely influenced by a lack of formal training in SUD treatment. Using a factorial survey-vignette design that included three clinical vignettes and a supplementary survey instrument, we investigated whether clinical psychology doctoral students differ in their level of negative emotional reactions toward clients with SUD versus major depressive disorder (MDD); whether they differ in their attributions …

Using Mixed Methods To Measure The Perception Of Community Capacity In An Academic–Community Partnership For A Walking Intervention, Charkarra Anderson-Lewis, Diana Castellanos, Arnecca Byrd, Karen Zynda, Alicia Sample, Vickie Reed, Mary Beard, Latessa Minor, Kathleen Yadrick

Diana Cuy Castellanos

H.U.B. City Steps is a 5-year community-based participatory research walking intervention designed to help lower blood pressure in a majority African American population in southern Mississippi via community collaboration and capacity building, increased walking, culturally tailored health education sessions, and motivational interviewing. Building community capacity for physical activity is a key component of this intervention. Qualitative and quantitative methods have been used to assess how project stakeholders perceive the community capacity-building efforts of the project. This article illustrates the baseline results of this mixed methods approach from the perspective of three groups of stakeholders: project researchers and staff, community advisory …

Palliative Practices: An Interdisciplinary Approach, Kim Kuebler, Mellar Davis, Crystal Moore

Crystal Moore

The first book of its kind, this must-have resource examines the integration of palliative interventions from a disease-specific approach, providing practical guidance on caring for patients who follow a progressive, chronic disease trajectory prior to death. This uniquely practical book addresses all aspects of palliative care, going beyond theoretical information to advise practitioners on the most effective management of common symptoms and providing physical, psychological, and spiritual comfort to patients and families. The multidisciplinary focus of care is reflected by collaborative contributors and diverse authorship of an oncology/palliative care nurse practitioner, a physician, and a social worker.

Physician Orders For Life-Sustaining Treatment Form: Honoring End-Of-Life Directives For Nursing Home Residents, Judy Meyers, Crystal Moore, Alice Mcgrory, Jennifer Sparr, Melissa Ahern

Crystal Moore

The Physician Orders for LifeSustaining Treatment (POLST) form provides choices about end-of-life care and gives these choices the power of physician orders. The POLST form assures end-of-life choices can be implemented in all settings, from the home through the health-care continuum. The use of the POLST form was evaluated in a pilot study in nursing homes in two eastern Washington counties. Chart reviews and template analysis of interviews revealed the POLST form accurately conveyed end-of-life wishes in 19 of 21 cases. An informed consent process was evidenced in 16 of 21 cases, and the POLST form was congruent with residents' …

Symptom Patterns Of Posttraumatic Stress Disorder Among Deaf Trauma Survivors, Melissa Anderson, Amanda Sortwell, Kelly Wolf Craig, Douglas Ziedonis

Melissa L. Anderson

Details about Deaf people’s pattern of posttraumatic stress disorder (PTSD) symptoms remain relatively unknown due to inaccessible methods used in most epidemiological research. We conducted semi-structured American Sign Language interviews with 16 trauma-exposed Deaf individuals to explore their PTSD symptom patterns. Half met criteria for current PTSD, a rate higher than the general population. Underlying this disparity may be heightened rates of dissociation and psychogenic amnesia reported by many Deaf trauma survivors. Future research with large samples of Deaf survivors is needed to clarify this hypothesis, and to inform interventions that more accurately target Deaf people’s pattern of trauma symptoms.

Applying The Information-Motivation-Behavioral Skills Model Of Hiv- Risk To Youth In Psychiatric Care, Geri Donenberg, Rebecca Schwartz, Erin Emerson, Helen Wilson, Fred Bryant, Gloria Coleman

Fred B. Bryant

This study examined the utility of cognitive and behavioral constructs (AIDS in-formation, motivation, and behavioral skills) in explaining sexual risk taking among 172 12–20–year-old ethnically diverse urban youths in outpatient psy-chiatric care. Structural equation modeling revealed only moderate support for the model, explaining low to moderate levels of variance in global sexual risk taking. The amount of explained variance improved when age was included as a predictor in the model. Findings shed light on the contribution of AIDS informa-tion, motivation, and behavioral skills to risky sexual behavior among teens re-ceiving outpatient psychiatric care. Results suggest that cognitive and behavioral factors …