PubMed HealthSearch

Biomedical subjects

P Golden

Publications and source records attributed to P Golden.

14 recordsLinked to original sources

A computerized business simulation for dental practice management.

Computerized simulations have been used for many years for teaching principles of management in business schools. This paper describes the development of a computerized business simulation for use in dental school practice management courses. The simulation is in a competitive game format. It requires students to formulate strategies and to implement management decisions that reinforce and fulfill that strategy. Participants use the outcomes of these decisions to formulate new management decisions for the upcoming period. Student response to participation in the simulation has been positive, with students indicating that participation is valuable for developing better understanding of analytical business management techniques and interpersonal techniques such as group process and leadership skills.

Commerce

Repair of laparoscopic injury to abdominal wall arteries complicated by cutaneous necrosis.

Operative laparoscopic techniques requiring placement of large-bore cannulas through the abdominal wall lateral to the midline result in increased numbers of injuries to abdominal wall vessels. Five cases of inferior epigastric artery hemorrhage were controlled by percutaneous transabdominal placement of polypropylene sutures, allowing the procedure to be completed with the cannula in place. In two patients the sutures were left in place for 72 to 96 hours, and cutaneous necrosis occurred requiring debridement and delayed primary closure. In the other three women, removal of the sutures less than 24 hours postoperatively resulted in satisfactory hemostasis and primary healing of the abdominal wound. Percutaneous placement of polypropylene sutures may provide effective hemostasis after inferior epigastric artery hemorrhage due to cannula injury. Early suture removal may avoid potential cutaneous necrosis.

Abdominal Muscles

A way out.

Explore the source record for details and available documents.

Aged

Beta blockers in combination with class I antiarrhythmic agents.

The hemodynamic and antiarrhythmic interactions between nadolol and a commonly used class I antiarrhythmic agent, quinidine or procainamide, were evaluated in 18 patients with ventricular arrhythmias in a double-blind, parallel study. Patients qualified for entry into the study if their ventricular arrhythmias remained poorly controlled (greater than or equal to 10 ventricular premature complexes/hr) with the class I agent alone and they had a left ventricular ejection fraction greater than 30%. Patients received their usual therapeutic doses of quinidine or procainamide throughout the study, which consisted of 3 treatment periods; a 2-week placebo treatment period, a 2-week open-label oral nadolol dose titration period, during which the dosages of nadolol were gradually increased from 40 mg daily to a maximum tolerated dose up to 120 mg daily, and a 4-week randomized, parallel comparison period during which patients were treated with either a class I agent alone or a combination of a class I agent and nadolol. Left ventricular ejection fractions by radionuclide ventriculography and 24-hour ambulatory electrocardiographic (Holter) recordings were obtained at the end of each treatment period. A positive treatment response was defined as greater than or equal to 75% reduction in ventricular premature complex frequency. During the dose titration phase, combination therapy with nadolol (mean dose 94 mg daily) and class I agents produced a mean decrease in ventricular premature complexes of 79% (p less than 0.01), and a mean decrease in ventricular couplets of 95% (p less than 0.01). A positive response was observed in 57% of patients treated with nadolol plus a class I agent.(ABSTRACT TRUNCATED AT 250 WORDS)

Adrenergic beta-Antagonists

Cellular immunolocalization of S100 protein within fixed tissue sections by monoclonal antibodies.

Monoclonal antibodies (MoAb) that cross-react with the shared epitopes of S100 protein have been prepared from mouse hybridoma cell lines and partially characterized. Nine of these MoAb were applied to sections of formaldehyde-fixed paraffin-embedded human tissues that were stained by immunohistochemical techniques. Three of these MoAb give uniformly and reproducibly positive staining in appropriate cell types when stained by avidin-biotin methods. Three of the MoAb were judged to be negative, although some MoAb gave inappropriate staining patterns. The three remaining MoAb showed either great heterogeneity in their staining patterns or intensities, or gave a lesser degree of reproducibility in a given tissue or neoplasm. One of the MoAb designated 15E2E2 that belonged to the first group of reproducibly staining antibodies was used to stain a larger number of normal human tissues and neoplasms. The staining that was observed appeared to recapitulate that which was previously described for conventional S100 protein antibodies. Monoclonal antibodies may, therefore, have a role in selected cases where standard microscopy is equivocal for a specific tissue diagnosis, or where independent verification of the diagnosis would be beneficial.

Adult

Cryptococcal pyelonephritis and disseminated cryptococcosis in a renal transplant recipient.

Symptomatic cryptococcal pyelonephritis, meningitis, and disseminated cryptococcosis are described in a renal cadaver transplant recipient who subsequently died of Klebsiella pneumoniae sepsis. The presence of cryptococcuria and a subsequent positive CSF India ink stain led to the initial diagnosis of disseminated cryptococcosis. Therapy with 0.511 g of amphotericin B and 112.5 g of flucytosine for four weeks did not eradicate Cryptococcus from the kidney and was associated with hepatotoxicity. The importance of urinary examination and culture for C neoformans is emphasized. Cryptococcal pyelonephritis should be considered in the differential diagnosis of allograft rejection in the renal transplant patient.

Cadaver

Lack of a direct effect of 1,25-dihydroxycholecalciferol on parathyroid hormone secretion by normal bovine parathyroid glands.

Because of differing reports of an effect of 1,25-dihydroxyvitamin D3 [1,25(OH)2D3] on parathyroid hormone (PTH) secretion, the present studies were performed in vitro using bovine parathyroid gland slices and isolated parathyroid cells. Both COOH-terminal and NH2-terminal RIAs for PTH were employed. No effect of 1,25(OH)2D3 on PTH secretion was found during a 4-h incubation of parathyroid slices in variable external calcium concentrations. The results from dual RIA measurements also showed no effect of 1,25(OH)2D3 on PTH secretion by isolated parathyroid cells during 90- to 150-min incubations with variable calcium concentrations. In addition, extensive analysis by polyacrylamide gel electrophoresis showed no effect of 1,25(OH)2D3 on cAMP generation. Whereas calcium inhibited and isoproterenol stimulated the production of cAMP, 1,25(OH)2D3 had no effect. We conclude that 1,25(OH)2D3 does not affect parathyroid gland function acutely in vitro.

Animals

Deaf patients' access to care depends on staff communication.

To ensure equal access to care for deaf patients, hospitals must make certain that their staff members can communicate effectively with these patients. To do so, common misconceptions about deaf people and about how they communicate must be corrected, and resources and techniques for staff members to use in communicating with deaf patients must be identified and learned.

Adult

Effect of 1-methyl-1-nitrosourea and streptozotocin on glucose-induced insulin secretion by isolated islets of Langerhans.

The present experiments were designed to compare the effects of streptozotocin and 1-methyl-1-nitrosourea upon glucose-induced insulin secretion by isolated islets of Langerhans. Both drugs depressed the insulin response at one and two hours incubation but higher molar concentrations of the nitrosourea were required to produce the same level of inhibition as streptozotocin, a difference perhaps related to the latter's glucose moiety.

Animals