نتایج جستجو برای: ß adrenoceptors

تعداد نتایج: 6790  

Journal: :medical journal of islamic republic of iran 0
s semnanian from the department of physiology, tarbiat modarres university, tehran f motamedi the department of physiology, shaheed beheshti university of medical sciences, tehran, islamic republic of iran.

transcutaneous electrical nerve stimulation (tens) is an analgesia inducing method with increasing applications in clinical procedures. in this study we tried to evaluate the role of the adrenergic system and its different adrenoceptor subtypes in tens-induced analgesia. two types of low and high frequency electrical stimuli were used in rats through needle electrodes, inserted at the base of t...

2016

Cardiac α1-adrenoceptor stimulation elicits a positive inotropic effect because of myofilament Ca2+ sensitization with a small increase in Ca2+ transients predominantly mediated by α1B-adrenoceptors via the intracellular alkalinization and potential myosin light chain 2 phosphorylation. However, the α1-adrenoceptor– mediated inotropy exhibits a wide range of species-dependent variation. In addi...

Journal: :Molecular pharmacology 2003
Michelle A Uberti Randy A Hall Kenneth P Minneman

The potential role of dimerization in controlling the expression and pharmacological properties of alpha1-adrenoceptor subtypes was examined using coimmunoprecipitation of epitope-tagged receptors. Human alpha1-adrenoceptor subtypes (alpha1A, alpha1B, alpha1D) were tagged at their amino-termini with Flag or hemagglutinin epitopes and transfected into human embryonic kidney 293 cells. Homodimeri...

2001
Frederick E. Domann Jianfang Hu

ß -carotene is a human nutrient found in plants or animals. It is also can be synthesized chemically. It is lipid-soluble, and is yellow, orange or red in color. ß-Carotene can be cleaved into vitamin A in vivo. The most abundant form of ß-carotene in human serum is trans isomer; cis isomers such as 9-cis ß-carotene, 13-cis ß-carotene, and 15-cis ß-carotene are only present in trace amounts. ß-...

2005
Natalia Gustavsson

.............................................................................6 ORIGINAL PAPERS....................................................................7 ABBREVIATIONS.....................................................................8 INTRODUCTION.......................................................................9 The structure of a pancreatic islet................................

2013
Akihiko Tsuji Keiko Tominaga Nami Nishiyama Keizo Yuasa

Although many endo-ß-1,4-glucanases have been isolated in invertebrates, their cellulolytic systems are not fully understood. In particular, gastropod feeding on seaweed is considered an excellent model system for production of bioethanol and renewable bioenergy from third-generation feedstocks (microalgae and seaweeds). In this study, enzymes involved in the conversion of cellulose and other p...

Journal: :Biochemical pharmacology 1987
D H Manier D D Gillespie F Sulser

Studies on mechanisms of desipramine (DMI) induced desensitization of the norepinephrine (NE) receptor coupled adenylate cyclase system in brain have shown that the endogenous agonist NE plays a pivotal role for both the development of subsensitivity and the down-regulation of beta adrenoceptors [l-4]. Moreover, an intact serotonergic neuronal input is co-required for the down-regulation of cen...

1994
Prosenjit Bose Giuseppe Di Battista William J. Lenhart Giuseppe Liotta

This paper examines an infinite family of proximity drawings of graphs called open and closed ß-drawings, first defined by Kirkpatrick and Radke [15, 21] in the context of computational morphology. Such proximity drawings include as special cases the well-known Gabriel, relative neighborhood and strip drawings. Complete characterizations of those trees that admit open /^-drawings for 0 < ß < iz...

2012
Mark Le Rachelle Naridze Jasmine Morrison Leah C. Biggs Lindsey Rhea Brian C. Schutte Vesa Kaartinen Martine Dunnwald

Wound healing is a complex process that relies on proper levels of cytokines and growth factors to successfully repair the tissue. Of particular interest are the members of the transforming growth factor family. There are three TGF-ß isoforms-TGF- ß 1, 2, and 3, each isoform showing a unique expression pattern, suggesting that they each play a distinct function during development and repair. Pr...

2013
Marcus May Sandor Batkai Alexander A. Zoerner Dimitrios Tsikas Jens Jordan Stefan Engeli

Microdialysis sampling of lipophilic molecules in human tissues is challenging because protein binding and adhesion to the membrane limit recovery. Hydroxypropyl-ß-cyclodextrin (HP-ß-CD) forms complexes with hydrophobic molecules thereby improving microdialysis recovery of lipophilic molecules in vitro and in rodents. We tested the approach in human subjects. First, we determined HP-ß-CD influe...

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