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M.A. (Clinical Psychology) / The purpose of this study was to determine whether children who are diagnosed as having Attention Deficit Disorder (ADHD), and Geschwind's syndrome, show a tendency to greater allergic responsivity manifesting in a greater sensitivity to specific foods than a control group. In order to test out these predictions, it had to be assessed whether these children displayed differential sensitivity to the food groups of sugar, dairy products and artificial flavouring and colouring. It was also necessary to establish whether these children will show a decrease in levels of activity contingent upon withdrawal of a foodstuff to which a differential sensitivity has been demonstrated. The subjects participating in this study were rated on a Conners Rating Scale to assess the degree of hyperactive behaviour, by both parents and teachers over a six week period. The overall pattern of results indicated that children with a combined diagnosis of ADHD and Geschwind's syndrome would show a greater behavioural responsivity to certain foodstuffs, and contingent upon their withdrawal, show a significant decrease in hyperactive behaviour. It is proposed that the study be repeated utilising a larger sample.

Indiana University-Purdue University Indianapolis (IUPUI) / Immune response enables the body to resist foreign invasions. The Inflammatory response is an important aspect in the immune response which is articulated by elements such as cytokines, APC, T-cell and B-cell, effector cell or natural killer. Of these elements, T-cells especially T-helper cells; a sub class of T-cells plays a pivotal role in stimulating the immune response by participating in various biological reactions such as, the transcription regulatory network. Transcriptional regulatory mechanisms are mediated by a set of transcription factors (TFs), that bind to a specific region (motifs or transcription factor binding sites, TFBS), on the target gene(s) controlling the expression of genes that are involved in T-helper cell mediated immune response. Eukaryotic regulatory motifs, referred to as cis regulatory modules (CRMs) or cistrome, co-occur with the regulated gene’s transcription start site (TSS) thus, providing all the essential components for building the transcriptional regulatory networks that depends on the relevant TF-TFBS interactions. Here, we study IL-12 stimulated transcriptional regulators in STAT4 mediated T helper 1 (Th1) cell development by focusing on the identification of TFBS and CRMs using a set of Stat4 ChIP-on-chip target genes. A region containing 2000 bases of Mus musculus sequences with the Stat4 binding site, derived from the ChIP-on-chip data, has been characterized for enrichment of other motifs and, thus CRMs. Our experiments identify some potential motifs, (such as NF-κB and PPARγ/RXR) being enriched in the Stat4 binding sequences compared to neighboring background sequences. Furthermore, these predicted CRMs were observed to be associated with biologically relevant target genes in the ChIP-on-chip data set by meaningful gene ontology annotations. These analyses will enable us to comprehend the complicated transcription regulatory network and at the same time categorically analyze the IL-12 stimulated Stat4 mediated Th1 cell differentiation.