Posted by: Indonesian Children | April 26, 2009

ALLERGY AND BEHAVIOUR

C. Peter; W. Bennett Jonathan Brostoff . The Shipley Project: Treating Food Allergy to Prevent Criminal Behaviour in Community Settings Journal of Nutritional & Environmental Medicine, Volume 7, Issue 4 December 1997 , pages 359 – 366

Abstract

This questionnaire-based research addressed the young offender population in order to estimate the proportion likely to have food allergic and other nutritionally related disorders such as hyperactivity. A controlled health and dietary survey was conducted with 100 young offenders and 100 matched non-offenders. The offender group reported significantly higher rates of ill health than the non-offender group. It is suggested that the nutritional health of young offenders could be investigated as part of present statutory requirements to consider the physical and mental health of young criminals. There was no real difference between the diets of the two groups. Further research is justified into the association between nutrition, health and behaviour problems. From this study, the proportion of the persistent young offender population with maladaptive behaviours linked to food allergy, food intolerance and nutritional problems is cautiously estimated to be 75% whereas 18% of the young non-offender population is similarly affected.

Keywords: Young; Offenders; Hyperactivity; Food; Allergy; Food; Intolerance; Diet; Nutrition; Behaviour

 

 

Costa-Pinto FA, Basso AS, Britto LR, Malucelli BE, Russo M. Avoidance behavior and neural correlates of allergen exposure in a murine model of asthma. Brain Behav Immun. 2005 Jan;19(1):52-60

Department of Pathology, School of Veterinary Medicine, University of São Paulo, São Paulo, Brazil. fpinto@usp.br

Allergic asthma is characterized by intermittent airway obstruction, inflammation, airway hyperreactivity, and increased production of IgE. The pathophysiology of asthma is well understood but little is known about its influences on brain activity and behavior. We recently described the neural correlates of food allergy and its associated modulation of behavior using an experimental model that also generates a T helper type 2 (Th2)-skewed response, with high levels of IgE. Here we show that mice allergic to ovalbumin (OVA) have an increase in the activity of the paraventricular nucleus of the hypothalamus (PVN) and in the central nucleus of the amygdala (CeA) following a single nasal OVA challenge. Moreover, we adapted a classical passive avoidance test using an OVA aerosol as the aversive stimulus. We found that allergic mice avoid entering the dark compartment of the apparatus that had been previously associated with nebulization of the allergen, while their non-immunized controls still move into the dark side of the test box. Thus, allergic mice have increased activity in areas of the CNS commonly associated with emotionality-related behavioral responses, such as the avoidance of a context previously associated with an unpleasant or harmful situation. Moreover, our findings on the avoidance test illustrate that previous experience with an airborne allergen can modify behavior.

Role of mast cell degranulation in the neural correlates of the immediate allergic reaction in a murine model of asthma

 

 

Frederico Azevedo Costa-Pintoa, , , Alexandre Salgado Bassob and Momtchilo Russoc. Role of mast cell degranulation in the neural correlates of the immediate allergic reaction in a murine model of asthma Brain, Behavior, and Immunity Volume 21, Issue 6, August 2007, Pages 783-790

 

 

 

aDepartment of Pathology, School of Veterinary Medicine, University of Sao Paulo, Brazil

bCenter for Neurologic Diseases, Brigham and Women’s Hospital, Harvard Medical School, USA

cDepartment of Immunology, Biomedical Sciences Institute, University of Sao Paulo, Brazil

 

 

Abstract

Experimental airway allergy in mice leads to increased activity in specific hypothalamic and amygdaloid nuclei, and behavioral changes. The experiments described here were designed to determine the role of anaphylactic antibodies, mast cell degranulation, and lung inflammation in the neural and behavioral correlates of an experimental murine asthma-like response. Animals were sensitized intraperitoneally with ovalbumin adsorbed to alum, and challenged by intranasal ovalbumin instillation or aerosol. To induce immunological tolerance, animals were fed ovalbumin in the drinking water for 5 consecutive days, along with primary sensitization. Depletion of IgE was also accomplished with a non-anaphylactic anti-IgE antibody. Mast cell degranulation was inhibited by cromolyn. In addition to BALB/c animals, C3H/HeJ mice were used for their relative resistance to lung allergic inflammation. We confirmed that ovalbumin challenge in allergic mice leads to increased activity in the paraventricular nucleus of the hypothalamus and central nucleus of the amygdala, and avoidance behavior towards an allergen-associated compartment. Moreover, these responses were precluded by oral tolerance or anti-IgE treatment, even in the presence of IgG1. Cromolyn abrogates both responses in the presence of anaphylactic antibodies. Finally, although sensitized C3H/HeJ mice did not develop airway inflammation, they exhibited brain and behavioral changes similar to BALB/c animals. The repercussions of murine allergic asthma on brain and behavior are IgE-dependent, mediated by mast cell degranulation, and do not require a pulmonary inflammatory infiltrate, suggesting that the early phase of this immediate allergic response suffices for the brain activation associated with avoidance behavior towards exposure to the allergen.

Keywords: Asthma; Neuroimmunology; Brain; Behavior; Allergy; IgE; Mast cell; Avoidance; Lung; Airways; Mouse

 

 

 

Provided by

DR WIDODO JUDARWANTO SpA
children’s ALLERGY CLINIC

JL TAMAN BENDUNGAN ASAHAN 5 JAKARTA PUSAT, JAKARTA INDONESIA 10210

PHONE : (021) 70081995 – 5703646

email :  judarwanto@gmail.com\

htpp://www.childrenallergyclinic.wordpress.com/

 

 

 

Copyright © 2009, Children Allergy Clinic Information Education Network. All rights reserved.


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