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Biomedical subjects

A M Abbas

Publications and source records attributed to A M Abbas.

At least 19 recordsLinked to original sources

A retrospective study of Rift Valley fever in Saudi Arabia.

A retrospective study was undertaken to examine domestic ruminant sera for Rift Valley fever (RVF) virus antibodies. The sera were collected between 1992 and 1995 from cattle, sheep and goats from various locations in Saudi Arabia. The standard capture enzyme-linked immunosorbent assay system was employed to detect specific RVF antibodies in the animals and the results indicated an absence of RVF antibodies. This finding confirms the assumption that Saudi Arabia was free from RVF up until at least 1995 and most probably before the 2000 epidemic. The finding also confirms that RVF was not endemic in Saudi Arabia.

Animals↗

The life span of sperm motility and pattern in cumulus coculture.

OBJECTIVE: To study the effect of cumulus cell coculture on human sperm motility, life span, and patterns. DESIGN: Controlled prospective study of 50 normal semen samples. Sperm motility and forward grade was observed in droplets of Ham's F-10 media with cumulus cell coculture and compared with sperm in droplets of Ham's F-10 only. SETTING: The Egyptian IVF-ET Center. MAIN OUTCOME MEASURES: Sperm motility, life span, and forward progressive pattern. RESULTS: The time course of loss of sperm motility in cumulus coculture was significantly slower than without cumulus. Also, the percentage of motile sperm with linear progressive motility of grade 4,3 was significantly higher in cumulus coculture. CONCLUSION: Cumulus cell coculture has a positive effect on prolongation of sperm motility life span and its forward progression.

Cell Communication↗

Ovarian superstimulation and intrauterine insemination for the treatment of unexplained infertility.

OBJECTIVE: To evaluate the efficacy of controlled ovarian hyperstimulation (COH) and IUI in the treatment of unexplained infertility. DESIGN: The pregnancy rate (PR) in patients with unexplained infertility treated by COH and IUI (group A) was compared with a no-treatment control (group B). SETTING: The Egyptian IVF-ET Center. PARTICIPANTS: Four hundred ninety-two patients with the diagnosis of unexplained infertility. INTERVENTION: Controlled ovarian hyperstimulation and IUI. MAIN OUTCOME MEASURES: Cycle fecundity per treatment cycle and PR per patient. RESULTS: In group A cycle fecundity was 20.1% per treatment cycle, and the PR was 34.7% per patient. In group B the PR was 8.9% per patient. Pregnancy rate per patient was significantly higher in group A when compared with the spontaneous PR in group B. CONCLUSION: Controlled ovarian hyperstimulation and IUI significantly increased the PR in patients with unexplained infertility when compared with a no-treatment control group.

Adult↗

Treatment of acute exacerbations of chronic obstructive airways disease--a comparison of amoxycillin and ciprofloxacin.

Ciprofloxacin and amoxycillin were compared in the treatment of acute exacerbations of chronic obstructive airways disease. One hundred and forty patients were evaluable for overall outcome: 60 patients' sputum specimens yielded positive bacteriological cultures. The predominant pathogens were Haemophilus influenzae (43.3%) and Streptococcus pneumoniae (25.0%). Both regimens were safe and produced few adverse effects. An independent observer judged ciprofloxacin to produce a 91.8% success rate (complete success 21.9%; partial success 69.9%) whilst a 73.1% rate (complete success 10.4%; partial success 62.7%) was seen with amoxycillin.

Amoxicillin↗

Ciprofloxacin versus amoxycillin/clavulanic acid in the treatment of urinary tract infections in general practice.

An open, randomized general practice study was performed to assess the comparative efficacy and tolerability of ciprofloxacin and amoxycillin/clavulanic acid in the treatment of uncomplicated urinary tract infection. One hundred and eighty nine patients were recruited into the study. In comparison of pre- and post-treatment urine cultures and symptomatology, ciprofloxacin was significantly more effective (P less than 0.01) than amoxycillin/clavulanic acid. Both drugs were well tolerated with minimal adverse side effects. Ciprofloxacin is an effective and safe treatment for uncomplicated urinary tract infection in general practice.

Acute Disease↗

An outbreak of rotavirus infection in a geriatric hospital.

We describe an outbreak of rotavirus infection in a geriatric hospital. The outbreak lasted for 6 weeks, and affected 14 patients of 68 at risk. Diarrhoea was the main symptom, lasting only 1 day in most patients. Rising or high rotavirus antibody titres were demonstrated in six patients. Of 96 staff only one member was infected.

Aged↗

Penetration of ceftazidime into the human prostate gland following intravenous injection.

The concentration of ceftazidime in human prostatic tissue obtained by transurethral resection was measured by microbiological assay in 24 patients after the intravenous administration of one 2 g dose. The average concentration of ceftazidime in the tissue was 10.1 micrograms/g 70 min after injection and 6.1 micrograms/g 140 min after injection; these levels were each approximately 14% of the corresponding serum levels. The concentration of ceftazidime achieved in the prostatic tissue was greater than the minimum inhibitory concentrations of ceftazidime for Gram-negative pathogens.

Aged↗

A comparative trial of amoxycillin 3g bd and conventional amoxycillin therapy in the treatment of urinary tract infection in a general practice population.

An open, randomised, General Practice study was carried out to determine the comparative efficacy and tolerability of two doses of amoxycillin 3 g and amoxycillin 250 mg tds for five days in the treatment of uncomplicated urinary tract infection. Two hundred and seven patients entered the study, of these 98 were shown to have negative bacteriology. Using pre- and post-treatment MSU culture and symptomatology as measures of efficacy it was found that the two treatment groups were not significantly different on both measures. Both treatments were well tolerated with only a low level of gastrointestinal side effects reported.

Amoxicillin↗

Ceftazidime: a new approach in the treatment of moderate and severe infections.

Ninety patients with serious infections, including 61 with septicaemia, pneumonia, peritonitis or meningitis, were treated with ceftazidime. Of these patients, 85.6% were clinically cured (73.3%) or improved (12.2%) by the antibiotic. In this study, 57.7% had infections due to Escherichia coli (24.7%), Klebsiella sp. (14.5%) and Pseudomonas sp. (18.5%). Two children with cystic fibrosis and Pseudomonas pneumonia and an adult with Legionella pneumonia responded well to ceftazidime treatment. Seventy patients had fever before treatment and most of them became apyrexial in less than 2 to 3 days. Ceftazidime was given either intramuscularly (42 patients) or intravenously (48 patients), in a dose of 1 g tds in 71 patients or 2 g tds in severe infections in 11 patients, or reduced to suit the renal function (7 patients) or in paediatric doses (2 children). Blood ceftazidime levels were measured in eight patients with normal renal function. The average level one hour post dosing was 45.2 mg/l and the average trough level was 8.1 mg/l. Six patients were suffering from variable degrees of renal insufficiency (serum creatinine 149 to 668 mmol/l). Their average blood level 1 h post-dosing was 68.8 mg/l. In a patient with meningitis, the CSF level was 2.4 mg/l 2 h after a 1 g dose. These levels are several times the ceftazidime MIC values for most clinical bacterial isolates. Ceftazidime is a valuable and safe alternative to aminoglycoside therapy.

Adolescent↗

Prophylactic netilmicin in surgery.

Seventy-seven elective or emergency surgical patients were treated with a prophylactic course of netilmicin. Netilmicin (150 mg intramuscularly) was given 1 hour prior to operation and continued 12 hourly until the patient was free of risk of post-operative infection. There was no microbiological or clinical evidence of post-operative infection in general surgical or orthopaedic patients. Netilmicin seems to be less nephrotoxic than other aminoglycosides. Netilmicin serum levels were within expected values. Netilmicin was found to be an effective and well-tolerated antibiotic, and prophylactic treatment shortened the mean patient bed-stay and hence costs incurred.

Adult↗