T. A. Ayoubi

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In the amphibian intermediate pituitary gland the biosynthetic activity for production of the precursor protein proopiomelanocortin (POMC) can be physiologically manipulated; POMC synthesis is high in animals adapted to a black background and low in white-adapted animals. In order to study genes associated with POMC gene expression we applied a differential(More)
Proopomelanocortin (POMC) is the precursor protein for a number of peptide hormones and neuropeptides, and the POMC gene is transcriptionally very active in the pars intermedia of the pituitary of the amphibian Xenopus laevis (Xenopus). We analysed the expression of this gene during Xenopus embryogenesis, in order to examine whether it can function as a(More)
In the melanotrope cells of the intermediate pituitary gland of the amphibian Xenopus laevis, expression of the POMC gene is under physiological control, i.e. it is 20- to 30-fold higher in animals adapted to a black background compared to animals adapted to a white background. To investigate whether changes in POMC messenger RNA stability contribute to(More)
During the past 6 years, gene expression profiling of atherosclerosis has been used to identify genes and pathways relevant in vascular (patho)physiology. This review discusses some critical issues in the methodology, analysis, and interpretation of the data of gene expression studies that have made use of vascular specimens from animal models and humans.(More)
ACKNOWLEDGEMENT I would like to thank my advisor Prof. Rune Gustavsson, for being my instructor and generously providing an abundance of learning opportunities. Also for providing ongoing guidance and wisdom, helping to light-up the way, and nudging me back on the road when I strayed or seemed lost. His efforts have been manifold notably aimed at guiding me(More)
(1997) Detection of mRNAs encoding peroxisomal proteins by non-radioactive in situ hybridization with digoxigenin-labelled cRNAs. Target and signal amplification: approaches to increase the sensitivity of in situ hybridization. (1990) Expresson of type VI procollagen and prolyl 4-hydroxylase mRNA in carbon tetrachloride induced liver fibrosis studied by in(More)
7B2 is a highly conserved protein present in many secretory cells. Using in situ hybridization techniques and immunocytochemistry, parameters concerning the biosynthesis and storage of the 7B2 protein were studied in the pituitary gland and median eminence of the clawed toad Xenopus laevis, in relation to the physiological process of background adaptation.(More)
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