Analogs of the incretin hormones glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic peptide (GIP) have become mainstays of obesity and diabetes management. However, both the physiologic role of incretin hormones in the control of appetite and the pharmacologic mechanisms by which incretin-mimetic drugs suppress caloric intake remain incompletely understood. Hunger-promoting AgRP-expressing neurons are an important hypothalamic population that regulates food intake.
View Article and Find Full Text PDFRapid gut-brain communication is critical to maintain energy balance and is disrupted in diet-induced obesity. In particular, the role of carbohydrate overconsumption in the regulation of interoceptive circuits in vivo requires further investigation. Here, we report that an obesogenic high-sucrose diet (HSD) selectively blunts silencing of hunger-promoting agouti-related protein (AgRP) neurons following intragastric delivery of glucose, whereas we previously showed that overconsumption of a high-fat diet (HFD) selectively attenuates lipid-induced neural silencing.
View Article and Find Full Text PDFExcess dopamine release in the dorsal striatum (DS) is linked to psychosis. Antipsychotics are thought to work by blocking striatal D2 dopamine receptors, but they lack efficacy for the negative and cognitive symptoms of schizophrenia. These observations and the fact that increasing brain-wide dopamine improves cognition have fueled the dogma that excess dopamine is not involved in negative and cognitive symptoms.
View Article and Find Full Text PDFWe sought to determine the effect of time and temperature of blood sample storage before preparation of human peripheral blood mononuclear cells (PBMCs) by Ficoll-hypaque density gradient centrifugation. Blood samples from healthy donors were stored at room temperature (RT) or refrigerated at 4°C before preparation of PBMCs. Cell yield and viability, and proportions of major cell populations within PBMCs, as determined by fluorescence flow cytometry, were assessed for both fresh and cryopreserved samples.
View Article and Find Full Text PDFBody weight is regulated by interoceptive neural circuits that track energy need, but how the activity of these circuits is altered in obesity remains poorly understood. Here we describe the in vivo dynamics of hunger-promoting AgRP neurons during the development of diet-induced obesity in mice. We show that high-fat diet attenuates the response of AgRP neurons to an array of nutritionally-relevant stimuli including food cues, intragastric nutrients, cholecystokinin and ghrelin.
View Article and Find Full Text PDFSatiation is the process by which eating and drinking reduce appetite. For thirst, oropharyngeal cues have a critical role in driving satiation by reporting to the brain the volume of fluid that has been ingested. By contrast, the mechanisms that relay the osmolarity of ingested fluids remain poorly understood.
View Article and Find Full Text PDFJ Clin Psychol
November 2018
Resistance and its extreme variation, reactance, are uniformly observed across varieties of psychotherapy. Social psychologists note that reactant individuals prove to be less so when offered a receptive and nondirective environment. We provide definitions of reactance, review its frequent measures, and offer a clinical example.
View Article and Find Full Text PDFOver the course of 60 years of research, several personality traits have emerged as potential predictors of differential change in psychotherapy. Among them is the patient's coping style (CS), commonly distinguished between those who deal with change by looking inwardly (internalization) and those who deal with it outwardly (externalization). This study provides definitions of CSs, clinical examples, and frequent measures.
View Article and Find Full Text PDFRemarkably few hormones have been identified that stimulate appetite. The recent discovery of asprosin, a hormone that activates AgRP neurons to increase food intake and body weight, begins to fill this gap (Duerrschmid et al., 2017; Romere et al.
View Article and Find Full Text PDFCommunication between the gut and brain is critical for homeostasis, but how this communication is represented in the dynamics of feeding circuits is unknown. Here we describe nutritional regulation of key neurons that control hunger in vivo. We show that intragastric nutrient infusion rapidly and durably inhibits hunger-promoting AgRP neurons in awake, behaving mice.
View Article and Find Full Text PDFReviews the emergence of research on fitting treatment procedures to the unique needs and proclivities of patients. Traditional research on efficacy of psychotherapy focuses on the role of interventions and theoretical brands, minimizing factors that cannot be randomly assigned. This line of research has not realized its initial and desired promise, perhaps because it fails to incorporate into the study of psychotherapy important and effective treatment variations that are associated with therapist and non-diagnostic patient factors.
View Article and Find Full Text PDFHemizygous deletion of a variable region on chromosome 11q containing FLI1 causes an inherited platelet-related bleeding disorder in Paris-Trousseau thrombocytopenia and Jacobsen syndrome. These multisystem disorders are also characterized by heart anomalies, changes in facial structure, and intellectual disability. We have identified a consanguineous family with autosomal recessive inheritance of a bleeding disorder that mimics Paris-Trousseau thrombocytopenia but has no other features of the 11q23 deletion syndrome.
View Article and Find Full Text PDFSupervision is the primary way in which psychotherapy trainees develop the skills of applying interventions, conceptualizing cases, and practicing self-reflection. Although critical to professional development, the nature and objectives of supervision can vary widely among supervisors, depending on idiosyncratic differences and the orientation used. As clinical psychology moves toward integrating science and practice, the need to teach students evidence-based principles of therapeutic change and how to use outcome measures to enhance progress is paramount.
View Article and Find Full Text PDFLaska, Gurman, and Wampold (2014, pp. 467-481) argue for the inclusion of common factors (CF) approaches to psychotherapy to be an alternative to empirically supported therapies when developing an evidence-based practice. Although we applaud their scholarship and the cogency of their arguments, we believe that they fall short of what is needed to define an optimal and effective therapy.
View Article and Find Full Text PDFObjectives: This study aimed to develop a culturally adapted version of the Systematic Treatment Selection-Innerlife (STS) in China.
Methods: A total of 300 nonclinical participants collected from Mainland China and 240 nonclinical US participants were drawn from archival data. A Chinese version of the STS was developed, using translation and back-translation procedures.
Psychotherapy (Chic)
September 2013
Gene delivery vectors derived from adeno-associated virus (AAV) have great potential as therapeutic agents. rAAV1 and rAAV6, efficiently target striated muscle, but the mechanisms that determine their tropism remain unclear. It is known that AAV6, but not AAV1, interacts with heparin-sulfate proteoglycans (HSPG).
View Article and Find Full Text PDFWhereas research on the treatment of personality disorders over the past several decades has focused primarily on comparing the efficacy of various treatment packages associated with different theoretical models, there is increasing evidence that the field would benefit from focusing more attention on developing integrative treatments that are both informed by research and capable of scientific verification. The articles assembled for this special section each propose a different approach to integrative treatment for personality disorders. In this commentary, we outline a number of reasons for making such a shift to more integrative treatments, consider some of the potential challenges to integration, and discuss the different approaches to integration illustrated in these articles.
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