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Biomedical subjects

R Raz

Publications and source records attributed to R Raz.

At least 127 records · Page 7Linked to original sources
PubMed1990

Failure of prolonged treatment with ciprofloxacin in acute infections due to Brucella melitensis.

A randomized prospective, pilot study was performed to compare the efficacy of oral ciprofloxacin (750 mg or 1000 mg bd) with standard oral antimicrobial therapy (rifampicin plus doxycycline) in the treatment of acute infection with Brucella melitensis. All antimicrobial drugs were administered for 42 days. Although all patients responded rapidly, five of the six patients receiving ciprofloxacin relapsed following cessation of therapy. There were no relapses among the patients who received doxycycline/rifampicin. Despite its in-vitro activity against B. melitensis (MIC 0.5 mg/l), ciprofloxacin, administered twice daily, does not appear to constitute adequate therapy for acute brucellosis.

Acute Disease↗
PubMed1990

Expression of a maize cell wall hydroxyproline-rich glycoprotein gene in early leaf and root vascular differentiation.

The spatial pattern of expression for a maize gene encoding a hydroxyproline-rich glycoprotein (HRGP) was determined by in situ hybridization. During normal development of roots and leaves, the expression of the gene was transient and particularly high in regions initiating vascular elements and associated sclerenchyma. Its expression was also associated with the differentiation of vascular elements in a variety of other tissues. The gene encoded an HRGP that had been extracted from the cell walls of maize suspension culture cells and several other embryonic and post-embryonic tissues. The gene was present in one or two copies in different varieties of maize and in the related monocots teosinte and sorghum. A single gene was cloned from maize using a previously characterized HRGP cDNA clone [Stiefel et al. (1988). Plant Mol. Biol. 11, 483-493]. In addition to the coding sequences for the HRGP and an N-terminal signal sequence, the gene contained a single intron in the nontranslated 3' end.

Amino Acid Sequence↗
PubMed1990

Oral ciprofloxacin treatment of Pseudomonas aeruginosa osteomyelitis.

Twenty-two adult patients with osteomyelitis due to Pseudomonas aeruginosa were enrolled in an open, prospective cooperative study to determine the efficacy of oral ciprofloxacin therapy in a dosage of 750 mg twice a day. Twenty patients received a complete course of treatment and could be assessed for efficacy. There were 12 men and 8 women, with a mean age of 55 years. Six patients had undergone previous, unsuccessful attempts at therapy. Eight patients had clinically important underlying conditions. The most common sites of infection were the sternum (six patients), hip (four patients), vertebrae (four patients), and tibia (two patients). Initial surgical debridement was performed in 18 of the 20 assessable patients. The mean duration of treatment was 2.85 months (range, 1 to 4 months), and that of the follow-up was 27 months (range, 6 to 52 months). Cure was achieved in 19 of the 20 (95%) patients. The only significant adverse effect (which prompted discontinuation of therapy) was severe nausea in one case. Oral ciprofloxacin coupled with adequate debridement is an effective, convenient, and safe therapy in patients with acute and subacute P. aeruginosa osteomyelitis.

Adolescent↗
PubMed1989

[Tuberculous meningitis].

2 cases of tuberculous meningitis are presented, 1 in a 54-year-old woman who had immigrated to Israel from Turkey 36 years before, and the other in a 10-year-old girl who recently immigrated from Ethiopia. Since diagnosis is difficult and prompt antituberculous treatment is life-saving, treatment may be instituted before the bacteriological diagnosis is established. A short term treatment of 9 months and a combination of rifampicin and isoniazid were successful in our patients.

Child↗
PubMed1989

Single-dose ciprofloxacin in the treatment of uncomplicated urinary tract infection in women.

In a randomised, double-blind trial two single-dose regimens of ciprofloxacin were evaluated for treatment of acute urinary tract infection (UTI) in women. Fifty-three women received 250 mg and 46 750 mg of ciprofloxacin. Seven days after treatment the eradication rate was 81.1% and 82.6% in the low and high dose groups respectively; the clinical cure rate at 28 days was 64.1% and 73.9% respectively. In women with recurrent UTI a significantly better response was found with the high dose regimen (92% versus 68%; p less than 0.001). It is concluded that a single 250 mg dose of ciprofloxacin is effective for treatment in most women with acute UTI, but in women with recurrent infection a 750 mg dose is preferable.

Adolescent↗
PubMed1989

The influence of an infectious disease specialist on the antimicrobial budget of a community teaching hospital.

After an infectious disease specialist (IDS) was introduced into a community teaching hospital, the use of antibiotics in eight of the main hospital departments was considerably reduced. The average daily expenditure on antibiotics before the IDS was appointed (April-June 1984) was $5.6. This was reduced in the last quarter of the study (April-June 1986) to $1.6. A drastic change, from $7.6 to $2.0, was noted in the surgical departments, due mainly to a strict policy in the prophylactic use of antibiotics. The success of the IDS was achieved by a combination of educational programmes, co-operation of the microbiology laboratory and the hospital pharmacy as well as by limiting restrictions to an extent that maintained clinical efficacy and the goodwill of those concerned.

Anti-Bacterial Agents↗
PubMed1989

Skin-isolated, community-acquired Staphylococcus aureus: in vitro resistance to methicillin and erythromycin.

During a 10-month period, skin culture specimens were taken from 1680 healthy outpatients with a variety of community-acquired skin infections. Staphylococcus aureus was found in 1035 (61.6%) of these patients. In vitro resistance to methicillin and erythromycin was 1.0% and 42.9%, respectively. Resistance rates to erythromycin in patients with furunculosis and impetigo were 51.5% and 26.2%, respectively (p less than 0.001). The emergence of erythromycin-resistant strains may be the result of widespread use of this drug in our geographic area. There is also the possibility that certain bacteriologic features associated with erythromycin resistance may foster the development of furunculosis.

Adolescent↗
PubMed1989

The use of augmentin in hospitalized and ambulatory children.

Twenty-six hospitalized and 14 ambulatory children with the most common bacterial infections were treated with augmentin, intravenously and orally. In 90% of the cases in this study a clinical and microbiological cure was obtained. The number of side-effects was no higher than those caused by other drugs. Augmentin provides safe and effective therapy for infections commonly seen in the pediatric population.

Ambulatory Care↗
PubMed1989

Superimposed high frequency ventilation with conventional mechanical ventilation.

A 73-year-old man with ARDS-multiple organ failure due to Chlamydia psittaci, was successively supported with conventional respiratory techniques. After 48 hours of no clinical improvement, HFV was superimposed to CMV in order to combine the advantages of each one. Since improvement has been seen in all ventilatory parameters, this method is suggested as another mode of ventilation for patients with refractory hypoxia and hypercarbia who do not respond to conventional respiratory care.

Aged↗
PubMed1989

Bone and joint infections due to Pseudomonas aeruginosa: clinical aspects and treatment.

The occurrence of nine cases of Pseudomonas septic arthritis and osteomyelitis within a 12-month period may be considered an uncommon experience even in a large, tertiary referral center. These cases are reported here and the various clinical patterns and therapeutic implications associated with Pseudomonas bone infections are discussed. Epidemiologic serotyping of the isolated strains indicated that they do not represent a single nosocomial outbreak.

Arthritis, Infectious↗