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Biomedical subjects

T Schofield

Publications and source records attributed to T Schofield.

24 records · Page 2Linked to original sources

Sensitive assays for hepatitis A antibodies.

Two commercial assay kits for detecting antibody to hepatitis A virus (anti-HAV) have been modified in order to increase their sensitivity. These modifications are made by less dilution of the test serum, in the case of Abbott HAVAB-M assay, or by an increase in the volumetric ratio of the test serum to the labeled anti-HAV in the case of the Abbott HAVAB assay. These modifications result in 5- to 20-fold increases in test sensitivity and enable the detection of anti-HAV at 2-3 weeks following vaccination. The earlier detection of anti-HAV is important to vaccine development in assuring the presence of antibody levels in travelers sooner after vaccination.

Adult↗

Prevention in general practice: the views of doctors in the Oxford region.

A postal questionnaire was sent to all 1291 general practitioners in the Oxford region to determine the pattern of preventive care and their beliefs about its effectiveness. Replies were received from 1014 doctors (79%). Doctors' attitudes to their role in prevention and health promotion were very positive and a large majority claimed to discuss health related topics with their patients when indicated. Fewer respondents said they made a point of discussing smoking habits (64%), alcohol intake (26%), diet (12%), or exercise (11%) as a matter of routine with all their adult patients. Most general practitioners said they usually offered simple advice, leaflets, or other aids when they had identified a problem, but few said they would refer these patients to the practice nurse. With the exception of cervical screening (45%), few respondents said they maintained statistics on the distribution of risk factors in their practice population. Despite considerable enthusiasm for their role in preventive health care, before the imposition of the new contact most general practitioners in the Oxford region had not yet embraced the model of prevention which the contract aims to encourage: systematic screening for risk factors and lifestyle advice for all patients.

Family Practice↗

Home blood pressure monitoring and changes in plasma catecholamines during once or twice daily treatment with atenolol in patients with mild hypertension.

1. The effects of atenolol on diurnal blood pressure control, heart rate and plasma catecholamines were studied in nine hypertensives, six of whom also received diuretics. The patients completed a double-blind trial in which the effects of once and twice daily administration of atenolol were compared with placebo. 2. Atenolol (100 mg) given once a day produced significant reduction in diurnal blood pressures recorded at home but the effect was slightly less than either 50 mg given twice a day or 200 mg once a day. 3. Effects on heart rate and blood pressure were seen within 36 hours of the first dose, and were near maximal at 72 hours. After cessation of the drug, mean resting heart rate increased gradually and reached pre-treatment levels five days later, suggesting strong tissue binding of atenolol. Blood pressure increased more slowly over 8--10 days. 4. Plasma noradrenaline levels were increased at rest with atenolol. This argues strongly against the antihypertensive effect of atenolol being due to a reduction of sympathetic nerve activity. 5. Once daily administration of atenolol in this group of patients with mild hypertension produced satisfactory diurnal blood pressure control and beta blockade without "rebound" hypertension on cessation of therapy.

Adult↗

Health promotion in primary care: The British perspective.

The structure of the British primary health care system allows for the development of a facilitator movement that can organize and encourage health care providers in local communities to coordinate health promotion efforts. We describe the Wycombe Primary Care Prevention Project to show how the facilitator movement can work in a local health district. The project's development and results to date demonstrate that the majority of primary care practices in the health district, departing from exclusive focus on individual care, now include community needs assessment and work on community-based health problems. We identify causative factors and discuss the generalizability of the project to other primary health care settings.

England↗