Dissertations / Theses on the topic 'Structure of histamines'
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Bannister, C. "Structural relationships in H1 and H2 histamine antagonists and some other compounds of interest to the medicinal chemist." Thesis, University of Oxford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379939.
Full textGeng, Tian. "Structural studies on histamine receptors." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/56628.
Full textCooper, David Gwyn. "Structure-activity in pyridine-containing histamine receptor antagonists." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/38269.
Full textAdams, Peter Laurence. "Structural biology of some proteins involved in some pathogenic states." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301785.
Full textThaw, Paul. "Structural studies of p23'f'y'p : a translationally controlled tumour protein." Thesis, University of Sheffield, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341815.
Full textGajda, Tamas Pal. "Équilibres et structure des complexes de métaux de transition avec des peptidoamines contenant l'histamine." Nancy 1, 1993. http://www.theses.fr/1993NAN10141.
Full textIgel, Patrick. "Synthesis and structure-activity relationships of N G -acylated arylalkylguanidines and related compounds as histamine receptor ligands : searching for selective H4R agonists." kostenfrei, 2008. http://www.opus-bayern.de/uni-regensburg/volltexte/2009/1107/.
Full textGeyer, Roland [Verfasser], and Armin [Akademischer Betreuer] Buschauer. "Hetarylalkyl(aryl)cyanoguanidines as histamine H4 receptor ligands: Synthesis, chiral separation, pharmacological characterization, structure-activity and -selectivity relationships / Roland Geyer. Betreuer: Armin Buschauer." Regensburg : Universitätsbibliothek Regensburg, 2011. http://d-nb.info/1023276240/34.
Full textArnould, Jean-Marie. "De la carcirine des crabes à la carnosine des vertébrés : De nouvelles voies métaboliques de l'histamine." Nancy 1, 1987. http://www.theses.fr/1987NAN10126.
Full textBirnkammer, Tobias [Verfasser], and Armin [Akademischer Betreuer] Buschauer. "Highly potent and selective acylguanidine-type histamine H2 receptor agonists: synthesis and structure-activity relationships of mono- and bivalent ligands / Tobias Birnkammer. Betreuer: Armin Buschauer." Regensburg : Universitätsbibliothek Regensburg, 2011. http://d-nb.info/1022872559/34.
Full textThiele, Holger. "Struktur und Funktion des Gens für das translationell kontrollierte Tumorprotein (TCTP)." Doctoral thesis, Humboldt-Universität zu Berlin, Medizinische Fakultät - Universitätsklinikum Charité, 2000. http://dx.doi.org/10.18452/14496.
Full textThe translationally controlled tumor protein (TCTP) is a conserved eukaryotic protein, which is involved in the pathogenesis of allergic diseases. In atopic children it has been reported to mediate histamine release from basophilic leukocytes in an IgE dependent way. The underlying mechanism, however, is unknown. TCTP is characterized by an efficient binding to tubulin of cytoskeletal structures and by a high calcium affinity. Its synthesis is regulated at the transcriptional and translational level. A specific function in tumor cells, which was assumed initially, could not be confirmed. The gene coding for TCTP is called TPT1. To understand the molecular basis for the control of TCTP expression structure and function of the human and rabbit TPT1 genes were investigated including their promoter regions. The first mammalian TPT1 gene (rabbit) was cloned and sequenced. It consists of 3.8 kb and is interrupted by five introns. Two mRNAs of 843 and 1163 nt length are transcribed differing in their 3'untranslated regions. They are generated by alternative polyadenylation. Furthermore genomic recombinants were isolated containing the human TPT1 gene and a preliminary structure of the gene was established. The human gene has the same intron/exon architecture as the rabbit gene just differing in the length of its introns. Human multi-tissue dotblots revealed an identical transcription pattern for both mRNAs. The concentration of the TCTP mRNAs differed up to the factor 100 between different tissues, indicating distinct tissue specificity in transcriptional control. 1.2 kb 5'flanking promoter structures were analyzed for transcription factor binding sites. For functional studies TPT1 promoter fragments were fused to the chloramphenicol acetyltransferase (CAT) reportergene and assayed by cell transfection and CAT enzyme activity. A basic promoter of 66 bp length containing a TATA box could be defined. Maximal promoter activity of 90% compared to the strong thymidine kinase promoter was associated with a fragment of 290 bp containing a SP-1, two AP-1/CREB and two ETS binding sites. This is a common feature of genes like TPT1, which are inducible by phorbolesters and lipopolysaccharides. Furthermore, numerous processed TPT1 pseudogenes were found spread through the rabbit genome. Six pseudogenes and their flanking genomic integration sites were sequenced. They represented both mRNA types and were at least 99% homologous to the corresponding mRNAs. In all pseudogenes the open reading frames were retained and in two of them the original amino acid sequence was even conserved completely. The 5'flanking region of one pseudogene was tested for transcriptional activity by CAT assays and revealed an activity of about 15% of the authentical TPT1 promoter. This could suggest a possible expression of TPT1 pseudogenes in vivo.
López, Muñoz Laura. "Homology modeling and structural analysis of the antipsychotic drugs receptorome." Doctoral thesis, Universitat Pompeu Fabra, 2010. http://hdl.handle.net/10803/7228.
Full textThe study started with obtaining homology models for all the receptors putatively involved in the antipsychotic drugs receptorome, suitable for building consistent drug-receptor complexes. These complexes were structurally analyzed and compared using multivariate statistical methods, which in turn allowed the identification of the relationship between the pharmacological properties of the antipsychotic drugs and the structural differences in the receptor targets. The results can be exploited for the design of safer and more effective antipsychotic drugs with an optimum binding profile.
Tradicionalmente se asumía que los fármacos terapéuticamente efectivos actuaban interaccionando con un único receptor. Actualmente está ampliamente reconocido que el efecto farmacológico de la mayoría de los fármacos es más complejo y abarca a un conjunto de receptores, algunos asociados a los efectos terapéuticos y otros a los secundarios y toxicidad. Los fármacos antipsicóticos son un ejemplo de compuestos eficaces que se caracterizan por unirse a varios receptores simultáneamente (principalmente a receptores unidos a proteína G, GPCR). El trabajo de la presente tesis se ha centrado en el estudio de los mecanismos moleculares que determinan el perfil de afinidad de unión por múltiples receptores de los fármacos antipsicóticos.
En primer lugar se construyeron modelos de homología para todos los receptores potencialmente implicados en la actividad farmacológica de dichos fármacos, usando una metodología adecuada para construir complejos fármaco-receptor consistentes. La estructura de estos complejos fue analizada y se llevó a cabo una comparación mediante métodos estadísticos multivariantes, que permitió la identificación de asociaciones entre la actividad farmacológica de los fármacos antipsicóticos y diferencias estructurales de los receptores diana. Los resultados obtenidos tienen interés para ser explotados en el diseño de fármacos antipsicóticos con un perfil farmacológico óptimo, más seguros y eficaces.
Tsung-Yi, Chang, and 張琮宜. "Bonding Properties of Cu(II)-N Chromophores: Spectroscopy and Electronic Structures of Histamine Copper(II) Complexes." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/67182460367561920046.
Full text國立師範大學
化學學系
81
The histaminecopper(II) complexes, [Cu(hmH)LX], and [Cu(hmH) LLX], where hmH stands for histamine, L for 2-methylimidazole, 4-methylimidazole, 4-aminopyri- dine, and 4-methylpyridine , LL for histamine, ethyl- enediamine, 2,2'-bipyridine, 1,10-phenanthroline, neo- cuproin, and X for ClO4- or Cl- have been synthesized. Characterization was made by elemental analysis, uv- vis, ir, and epr spectroscopic measurements, and X-ray diffraction method. Determined by three-dimensional X-ray diffraction method, [Cu(hmH)2(ClO4)2] and [Cu(hmH)2Cl]Cl.2H2O are tetragonally elongated octahedral; [Cu(hmH)(en)Cl]Cl and [Cu(hmH)(neoc)Cl]Cl are square-pyramidal; [Cu(hmH) (bipy)Cl]Cl. H2O and [Cu(hmH)(4MImH)Cl] are trigonal byramidal. The molecular structures of other Cu(II)-hmH complexes are elucidated based on their spectroscopic data. Be- sides the steric effects of ligands, the bonding capabilities of ligands play the decisive role in de- termining the molecular structures of the complexes.
Kraus, Anja [Verfasser]. "Highly potent, selective acylguanidine type histamine H2-receptor agonists : synthesis and structure-activity relationships / vorgelegt von Anja Kraus." 2008. http://d-nb.info/987515187/34.
Full textIgel, Patrick [Verfasser]. "Synthesis and structure-activity relationships of NG-acylated arylalkylguanidines and related compounds as histamine receptor ligands : searching for selective H4R agonists / vorgelegt von Patrick Igel." 2009. http://d-nb.info/992253667/34.
Full textGhorai, Prasanta [Verfasser]. "Arpromidine-related acylguanidines : synthesis and structure-activity relationships of a new class of guanidine-type histamine H2 receptor agonists with reduced basicity / vorgelegt von Prasanta Ghorai." 2006. http://d-nb.info/981466257/34.
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