Antagonism of morphine-induced central stimulation in mice by small doses of catecholamine-receptor agonists

1978 ◽  
Vol 42 (3) ◽  
pp. 169-179 ◽  
Author(s):  
U. Strömbom ◽  
T. H. Svensson
Keyword(s):  
Receptor Agonists ◽  
Small Doses ◽  
Central Stimulation

Antagonism of ethanol's central stimulation in mice by small doses of catecholamine-receptor agonists

1977 ◽  
Vol 51 (3) ◽  
pp. 293-299 ◽  
Author(s):  
U. Str�mbom ◽  
T. H. Svensson ◽  
A. Carlsson
Keyword(s):  
Receptor Agonists ◽  
Small Doses ◽  
Central Stimulation

Review of the Radiation Damage Problem of Organic Specimens in Electron Microscopy

1973 ◽  
Vol 31 ◽  
pp. 476-477
Author(s):  
L. Reimer
Keyword(s):  
Electron Microscopy ◽  
Radiation Damage ◽  
Irradiation Time ◽  
Dose Effect ◽  
Primary Process ◽  
Thin Specimen ◽  
Secondary Damage ◽  
Small Doses ◽  
Micro Organisms ◽  
Damage Processes

Most information about a specimen is obtained by elastic scattering of electrons, but one cannot avoid inelastic scattering and therefore radiation damage by ionisation as a primary process of damage. This damage is a dose effect, being proportional to the product of lectron current density j and the irradiation time t in Coul.cm−2 as long as there is a negligible heating of the specimen.Therefore one has to determine the dose needed to produce secondary damage processes, which can be measured quantitatively by a chemical or physical effect in the thin specimen. The survival of micro-organisms or the decrease of photoconductivity and cathodoluminescence are such effects needing very small doses (see table).

Abstract #295 GLP-1 Receptor Agonists and Death From Any Cause in Elderly Patients with Type 2 Diabetes Mellitus: A Post-Hoc Analysis

2018 ◽  
Vol 24 ◽  
pp. 80-81
Author(s):  
Konstantinos Toulis ◽  
Krishna Gokhale ◽  
G. Neil Thomas ◽  
Wasim Hanif ◽  
Krishnarajah Nirantharakumar ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Elderly Patients ◽  
Post Hoc Analysis ◽  
Receptor Agonists ◽  
Post Hoc

Heart Rate Conditioning to Central Stimulation

1969 ◽  
Author(s):  
Neil Schneiderman
Keyword(s):  
Heart Rate ◽  
Heart Rate Conditioning ◽  
Central Stimulation

Selective Glucocorticoid Receptor Agonists for Treatment of Inflammatory Bowel Disease – in vitro studies

2011 ◽  
Vol 49 (10) ◽  
Author(s):  
Kerstin Reuter ◽  
Stefan Loitsch ◽  
Axel Dignass ◽  
Jürgen Stein
Keyword(s):  
Inflammatory Bowel Disease ◽  
Glucocorticoid Receptor ◽  
Bowel Disease ◽  
In Vitro Studies ◽  
Receptor Agonists ◽  
Inflammatory Bowel

Analysing the effect of imidazoline receptor agonists and antagonists on the gastric motility in mice

2013 ◽  
Vol 51 (05) ◽  
Author(s):  
E Réfi ◽  
E Szabó ◽  
Á Fehér ◽  
V Tóth ◽  
H Lutz ◽  
...  
Keyword(s):  
Gastric Motility ◽  
Imidazoline Receptor ◽  
Receptor Agonists ◽  
Receptor Agonists And Antagonists

Lauric Acid-Induced Thrombocytopenia and Thrombosis in Rabbits

1967 ◽  
Vol 18 (01/02) ◽  
pp. 057-065 ◽  
Author(s):  
G Zbinden
Keyword(s):  
Acid Solution ◽  
Intravenous Injection ◽  
Lauric Acid ◽  
Repeated Administration ◽  
Intravenous Dose ◽  
Acid Injection ◽  
Small Doses ◽  
High Doses

SummaryIntravenous injection of 0.5% lauric acid solution into rabbits caused moderate to marked thrombocytopenia. With small doses (2.5 mg/kg) this thrombocyte decrease was reversible and microscopically demonstrable thrombosis in the lungs was only seen or suspected in a small number of rabbits 10 to 30 min after lauric acid injection. High doses were followed by partly reversible thrombocytopenia and by moderate to marked, sometimes lethal, thrombosis in the lungs still demonstrable 24 hrs after injection. Repeated administration of small doses of lauric acid did not lead to a depletion of the circulating thrombocytes. Thrombocytopenic response, however, appeared to be less pronounced after the second and subsequent injections. Studies with Cr51-labeled platelets indicate that during the reversible thrombocytopenia following a small intravenous dose of lauric acid platelets are retained in various organs, particularly the lungs.

Functional Fractionation of Platelets: Aggregation Kinetics and Glycoprotein Labeling of Differing Platelet Populations

1982 ◽  
Vol 48 (02) ◽  
pp. 211-216 ◽  
Author(s):  
V M Haver ◽  
A R L Gear
Keyword(s):  
Galactose Oxidase ◽  
Aggregation Kinetics ◽  
Maximal Rate ◽  
Membrane Glycoproteins ◽  
Whole Cells ◽  
Reversible Aggregation ◽  
Significant Difference ◽  
Small Doses ◽  
Major Loss ◽  
Kinetics Of

SummaryPlatelet heterogeneity has been studied with a technique called functional fractionation which employs gentle centrifugation to yield subpopulations (“reactive” and “less-reactive” platelets) after exposure to small doses of aggregating agent. Aggregation kinetics of the different platelet populations were investigated by quenched-flow aggregometry. The large, “reactive” platelets were more sensitive to ADP (Ka = 1.74 μM) than the smaller “less-reactive” platelets (Ka = 4.08 μM). However, their maximal rate of aggregation (Vmax, % of platelets aggregating per sec) of 23.3 was significantly lower than the “less-reactive” platelets (Vmax = 34.7). The “reactive” platelets had a 2.2 fold higher level of cyclic AMP.Platelet glycoproteins were labeled using the neuraminidase-galactose oxidase – [H3]-NaBH4 technique. When platelets were labeled after reversible aggregation, the “reactive” platelets showed a two-fold decrease in labeling efficiency (versus control platelets). However, examination of whole cells or membrane preparations from reversibly aggregated platelets revealed no significant difference in Coomassie or PAS (Schiff) staining.These results suggest that the large, “reactive” platelets are more sensitive to ADP but are not hyperaggregable in a kinetic sense. Reversible aggregation may cause a re-orientation of membrane glycoproteins that is apparently not characterized by a major loss of glycoprotein material.

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