نتایج جستجو برای: adrenergic agents
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SUMMARY The foliowing cardiac effects may be attributed to thyroxin: 1-Thyroxin augments all anaerobic processes in the body includ::ng the heart, and decreases the glycogen content of the heart ( 1, 2, 5, 27). The resistance of the heart to anoxia is increased in hyperthyroidism ( 25). 2- Thyroxin influences the cardiac weight and prevents cardiac atrophy (3, 8, 10, 11, 19, 20, 21, 30...
The role of adrenergic agents in augmenting proximal tubular salt and water flux, was studied in a preparation of freshly isolated rabbit renal proximal tubular cells in suspension. Norepinephrine (NE, 10(-5) M) increased sodium influx (JNa) 60 +/- 5% above control value. The alpha adrenergic antagonist, phentolamine (10(-5) M), inhibited the NE-induced enhanced JNa by 90 +/- 2%, while the beta...
The adrenergic amines noradrenaline and adrenaline increased flux through phenylalanine hydroxylase by approx. 50%. This effect, which appears to be mediated by an alpha-adrenergic mechanism, was accompanied by a rapid increase in the phosphorylation of phenylalanine hydroxylase. Although ionophore A23187 mimicked the effects of the adrenergic amines, vasopressin was completely without effect o...
The purpose of this paper is to review the recent literature related to invasive mechanical ventilation, NIV, pediatric mechanical ventilation, and aerosol therapy. Topics covered related to invasive mechanical ventilation topics include the role of PEEP in providing lung protection during mechanical ventilation, unconventional modes for severe hypoxemia, and strategies to improve patient-venti...
With numerous safe and effective antihypertensive drugs now available, the clinician should no longer choose only diuretic agents or beta-adrenergic receptor blockers (beta-blockers) as initial therapy. Five classes of agents, including angiotensin converting enzyme inhibitors, beta-blockers, calcium entry blockers, peripheral alpha 1-adrenergic receptor blockers, and thiazide diuretic agents, ...
Schizophrenia is a chronic psychotic disorder characterized by the presence of symptoms (hallucinations, delusions), negative (decreased expressiveness), and cognitive (lack executive function). The exact etiology schizophrenia unknown, although it thought to be linked increased dopaminergic activity in mesolimbic neuronal pathway decreased prefrontal cortical pathway. Treatment includes both p...
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