1) A review of the literature and an analysis of the data in this study indicate that excellent local control may be expected following SCPL. 2) The QOL following SCPL, as measured by three validated QOL instruments, is superior to TL with TEP. 3) A histologic assessment of whole organ sections of TL specimens indicates that many patients who have been subjected to TL may have been candidates for SCPL. 4) If the indications and contraindications are rigorously adhered to, SCPLs are reasonable alternatives to TL in selected cases.

No abstract

No abstract

Objectives:To investigate the nephrotoxic effect and biochemical alterations induced by cefepime in rats.Materials and Methods:Cefepime was administered intramuscularly at doses of 45, 90 and 180 mg/kg b.wt. once daily for 5 consecutive days. The serum and urine samples were used for quantitative determination of urea, creatinine, glucose, total protein, calcium, sodium and potassium. The histopathological examination of kidney tissues was performed 1, 4 and 8 days after the last dose of cefepime administration.Results:Cefepime induced a significant increase in the total amount of urine per day, urea and creatinine concentration in the serum and urine and significant decrease in their clearance. Cefepime also caused a significant gluocosuria and proteinuria and significant decrease in their serum concentrations. The effect of cefepime on serum and urine concentrations of calcium, sodium and potassium were also determined. Cefepime injection in the three tested doses caused renal tubular, glomerular and vascular changes. The severity of these changes was dose dependent. In conclusion, these results suggest a possible contribution of cefepime in the nephrotoxicity and biochemical alterations, especially at high doses. Therefore, the renal functions should be monitored during the cefepime therapy.

No abstract

No abstract

1 The object of the present study was to clarify the neurotransmitters controlling membrane responses to electrical field stimulation (EFS) in the longitudinal smooth muscle cells of the chicken anterior mesenteric artery. 2 EFS (5 pulses at 20 Hz) evoked a depolarization of amplitude 19.772.1 mV, total duration 29.673.1 s and latency 413.0767.8 ms. This depolarization was tetrodotoxin (TTX)-sensitive and its amplitude was partially decreased by atropine (0.5 mM); however, its duration was shortened by further addition of prazosin (10 mM). 3 Atropine/prazosin-resistant component was blocked by the nonspecific purinergic antagonist, suramin, in a dose-dependent manner, indicating that this component is mediated by the neurotransmitter adenosine 5 0 -triphosphate (ATP).4 Neither desensitization nor blocking of P2X receptor with its putative receptor agonist a,bmethylene ATP (a,b-MeATP, 1 mM) and its antagonist pyridoxalphosphate-6-azophenyl-2 0 ,4 0 -disulfonic (PPADS, up to 50 mM), had significant effect on the purinergic depolarization. In contrast, either desensitization or blocking of P2Y receptor with its putative agonist 2-methylthioATP (2-MeSATP, 1 mM) and its antagonist Cibacron blue F3GA (CBF3GA, 10 mM) abolished the purinergic depolarization, indicating that this response is mediated through P2Y but not P2X receptor. 5 The purinergic depolarization was inhibited by pertussis toxin (PTX, 600 ng ml À1). Furthermore, it was significantly inhibited by a phospholipase C (PLC) inhibitor, U-73122 (10 mM), indicating that the receptors involved in mediating the purinergic depolarization are linked to a PTX-sensitive G-protein, which is involved in a PLC-mediated signaling pathway. 6 Data of the present study suggest that the EFS-induced excitatory membrane response occurring in the longitudinal smooth muscle of the chicken anterior mesenteric artery is mainly purinergic in nature and is mediated via P2Y purinoceptors.

No abstract