Heat-inactivated horse serum inhibited penicillin-induced L-form colony formation in Staphylococcus aureus when included in an osmotically stabilized culture medium. Most, perhaps all, L-form colonies that appeared with low frequencies on the serum-supplemented medium were of the penicillin-independent, stable type. This relationship must be taken into account when use of serum is considered fo...

The response of tolerant Streptococcus sanguis and nontolerant Streptococcus mitis infections to penicillin therapy was compared in the rabbit model of endocarditis. The minimal inhibitory and bactericidal concentrations of penicillin were 0.1 and 0.1 mug/ml, respectively, for S. mitis and 0.05 and 6.2 mug/ml, respectively, for S. sanguis. Time-kill studies done in vitro with penicillin concent...

It has been observed that there is a high incidence of treatment failure in cases of ano-rectal gonorrhoea treated by the time-honoured standard methods. At this hospital urethral gonorrhoea has responded well for many years to one injection only of 1-2 m.u. procaine penicillin given intramuscularly; but similar treatment for an ano-rectal infection with gonococci has given very poor results. T...

introduction: aim was to study the influence of serum testosterone and urinary citrate on the formation of urinary stones in men and women, and to apply the findings for preventing urolithiasis. methods: we studied 200 patients (100 were men and 100 women) who had referred to the urology clinic at imam khomeini hospital and seda sima eswl center. in both groups, 50 were stone formers and 50 wer...

background & objective: lichen planus is a mucocutaneous disease which is relatively common and in 30-70% of patients, mucosal lesions can be seen and known as a precancerous lesion but its etiology is not completely understood. desmogleins i and iii are the main desmosomal transmembrane proteins. these proteins have been identified as the autoantigen of the autoimmune disease. the aim of t...

background : the measuring serum ferritin level as a sensitive inflammatory biomarker might effectively predict preterm delivery, but the power and the best cut-off point of this biomarker for predicting preterm labor in iranian population has not been substantially identified. our purpose was to determine what concentrations of serum ferritin could identify patients at risk for preterm deliver...

reports on the treatment of meningitis with penicillin, with sulphonamides, and with sulphouamides and anti-meningococcal serum. The following are some recent publications on the subject. Dawson and Hobby (1944) reported on the Use of penicillin in 100 cases out of which only 2 were of meningococcal meningitis. In one case the response was satisfactory; in the other Penicillin was not given int...

Serum penicillin G falls to low levels 2 weeks after injection as benzathine penicillin G (BPG) in young adults. Using Pmetrics and previously reported penicillin G pharmacokinetic data after 1.2 million units were given as BPG to 329 male military recruits, here we develop the first reported population pharmacokinetic model of penicillin G after BPG injection. We simulated time-concentration p...

Probenecid by inhibiting the renal excretion of penicillin raises its serum level (Boger, Beatty, Pitts, and Flippin, 1950; Burnell and Kirby, 1951; Meads, Knight, and Izlar, 1951; Frisk, Diding, and Wallmark, 1952), a pharmacological effect of which increasing use has been made in the treatment of gonorrhoea (Hilton, 1959; Jensen, Kvorning, and N0rredam, 1963; Holmes, Johnson, and Floyd, 1967;...