Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Inhibition by α2-adrenoceptor agonists of the secretion of catecholamines from isolated adrenal medullary cells (1983)
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 324 (1983), S. 15-19 
    Details
    ISSN: 1432-1912
    Keywords: Adrenal medulla ; Catecholamine ; Secretion ; Calcium ion ; α2-Agonists ; α2-Adrenoceptor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In adrenal medullary cells, carbachol evokes the secretion of catecholamines with simultaneous uptake of45Ca. Highly selective agonists for α2-adrenoceptors, clonidine, naphazoline, guanfacine, tramazoline and oxymetazoline inhibited carbachol evoked secretion of catecholamines in a dose-dependent manner. These α2-agonists also inhibited the uptake of45Ca evoked by carbachol with similar dose-response curve to inhibition of catecholamine secretion. On the contrary, highly selective agonists for α1-adrenoceptors, phenylephrine and norfenefrine did not inhibit the secretion of catecholamines and cellular uptake of45Ca. The inhibition by α2-agonists was not restored either by the increase in carbachol, or Ca concentrations, suggesting that the mode of inhibition was distinct from competition at cholinergic receptors or Ca-channels. It is likely that α2-agonists inhibited the secretion of catecholamines via the inhibition of Ca uptake which was probably caused through the activation of α2-adrenoceptors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00647832
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Gelation of syndiotacticity-rich poly(vinyl alcohol)-phenol-water mixture (1981)
    Springer
    Colloid & polymer science 259 (1981), S. 1147-1150 
    Details
    ISSN: 1435-1536
    Keywords: Gel ; Syndiotactic poly(vinyl alcohol) ; Water-phenol mixture ; Melting point of gel ; Hydrogen bond
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary Gelation of syndiotacticity-rich poly(vinyl alcohol)-phenol-water mitxture is studied. The gels were transparent differing from aqueous gels which were turbid. For the same degree of polymerization and concentration the melting point of the gel increased with increasing syndiotacticity. The dimension of a crosslink also increased with increasing syndiotacticity. The instability of the solution of syndiotactic poly(vinyl alcohol) is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01525008
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...