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S Teich

Publications and source records attributed to S Teich.

24 records · Page 2Linked to original sources
PubMed1986

Standards for reference services in health sciences libraries: the reference product.

Standards for reference services were prepared by a committee of the Oregon Health Sciences Libraries Association (OHSLA). The standards are qualitative and address the following: quality control, appropriateness, accuracy, documentation, timeliness, accessibility, confidentiality, and evaluation. The standards are components of minimally competent reference service as reflected in the reference product. A discussion of concerns and prescriptive measures accompanies the statement of each standard. While prepared specifically for health sciences libraries, the standards are applicable to all types of libraries and may be used as guidelines in evaluating the reference product, in upgrading library service, and in writing policies and procedures.

Information Services↗
PubMed1986

Glucagon: endocrine effects and calcium involvement in cardiovascular actions in dogs.

Although the cardiovascular effects of glucagon are understood, its mechanism(s) of action remains unclear. We studied the effects of increasing doses of glucagon (0.001, 0.01, 0.1 mg/kg) on cardiovascular responses in dogs relative to concurrent measurements of circulating glucagon, cyclic AMP, glucose, norepinephrine, epinephrine, triiodothyronine, thyroxine, and cortisol levels. Glucagon-induced increases in plasma cyclic AMP, glucose, and catecholamine concentrations paralleled the heart rate response to glucagon administration. Further studies were conducted to evaluate the role of beta-adrenergic function as well as calcium in mediating glucagon's actions. The tachycardic effects of glucagon (0.01 mg/kg) were unaltered by prior beta-adrenergic receptor blockade with propranolol (3.5 mg/kg total dose). The calcium antagonist verapamil (0.2 mg/kg bolus then 7.5 micrograms/kg/min/infusion) prevented glucagon-induced increases in heart rate. However, the coadministration of glucagon (0.01 mg/kg) with calcium (1.0, 5.0, 10.0, or 50.0 mg/kg) did not alter glucagon's cardiovascular effects. These data indicate that glucagon is a potent tachycardiac agent that also elevates circulating endocrine-related substances. The antagonism of glucagon's tachycardiac effects by verapamil suggests that glucagon's action may be via glucagon-induced calcium movement through calcium channels, although extracellular calcium changes do not alter glucagon's effect. Furthermore, the persistence of glucagon's cardiovascular actions following beta-adrenergic blockade indicates the potential clinical utility of glucagon in reversing the adverse effects of beta-blocker overdoses, and its potential usefulness in treating circulatory shock in "beta-blocked" patients.

Animals↗
PubMed1986

The early diagnosis of splenic abscess.

Five cases of splenic abscess seen between 1970 and 1984 are reviewed. The predisposing factors included preceding pyogenic infection, sickle cell disease, and contiguous disease in the pancreas. Abdominal pain and fever were the most frequent presenting symptoms. The most common physical finding was left upper quadrant (LUQ) abdominal tenderness. All patients were treated with splenectomy. In one patient percutaneous drainage was attempted prior to splenectomy but failed. The mortality rate was 20 per cent. Radiologic procedures developed in the last ten years make possible the early diagnosis and treatment of splenic abscess. The treatment of choice remains antibiotics followed by splenectomy.

Abscess↗
PubMed1985

Specific cardiovascular drugs utilized in the critically ill.

The ability to pharmacologically manipulate cardiovascular function is important in caring for critically ill patients. Catecholamines have been the primary agents used for this purpose. Opiate receptor antagonists, neuropeptides like glucagon, and prostaglandin synthesis inhibitors provide new pharmacologic possibilities for physicians in the critical care unit. The cardiovascular actions of these and other agents are reviewed and their potential clinical indications are listed.

Calcium↗
PubMed1978

Crystallization of calcium oxalate from synthetic urine.

The precipitation of calcium oxalate from synthetic urine was followed from the disappearance of radioactive oxalate from solution. Rates of precipitation were also estimated from the time of appearance of crystals. Synthetic urine inhibited the rate of crystallization of calcium oxalate; this inhibition was a combined effect of ionic strength and specific inhibition by one or mroe components of the synthetic urine. Polyphosphate and polyacrylate ions strongly inhibited crystallization of calcium oxalate from synthetic urine; phosphonates, heparin, and polystyrene sulfonate showed much less inhibition. Inasmuch as citrate and pyrophosphate ions showed some inhibition, it seems that carboxylate and phosphate groups on a polymer chain are the most effective inhibitors.

Acrylic Resins↗