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Biomedical subjects

P Bennett

Publications and source records attributed to P Bennett.

At least 217 records · Page 12Linked to original sources
PubMed1979

Infant nutrition.

Explore the source record for details and available documents.

Child Advocacy↗
PubMed1977

Correlation between rises of gonadotrophins and rises of sex steroids during clomiphene test in men.

Serum FSH, LH and testosterone and urinary excretion of androsterone, aetiocholanolone, dehydroepiandrosterone and total oestrogens were measured in normal and oligospermic men before and after clomiphene stimulation. Responses in all parameters were highly variably from one individual to another and this great variation formed the basis for investigating the correlations between responses. There was no correlation between increase of FSH and LH or increase of LH and steroids. Also there was no correlation between rises of FSH and rises of androgens. But a significant correlation existed between rises of FSH and rises of oestrogens. This confirms that one action of FSH is to stimulate production of testicular oestrogens which presumably takes place in the Sertoli cells.

Adolescent↗
PubMedDate not supplied

Predicting post-traumatic symptoms in cardiac patients.

OBJECTIVE: The purpose of this study was to identify correlates and predictors of the symptoms of post-traumatic stress disorder (PTSD) in a cohort of patients with myocardial infarction, while the patients were in hospital and 3 months after infarction. DESIGN: Longitudinal, consecutive referrals were used. PATIENTS: From a possible 68 consecutive patients with a first myocardial infarction who completed questionnaires in hospital and survived to 3-month follow-up, 39 completed follow-up questionnaires. OUTCOME MEASURES: PTSD measures were taken in hospital and 3 months after discharge. Predictor variables were measures of mood taken in hospital and measures of the immediate cognitive and emotional reactions at the time of the infarct. RESULTS: Associations between the independent variables and PTSD symptoms were stronger at 3-month follow-up than while in hospital. At this time, the frequency of intrusive thoughts was predicted by the degree of fright at the time of the event (adjusted R(2) = 0.262; beta =.57; t = 3.30; P <.01) and positive affect scores (additional adjusted R(2) = 0.112; beta = -.37 t = -2.18; P <.05). The degree of physiologic arousal at the time of such flashbacks was predicted by levels of negative affect in hospital (adjusted R(2) = 0.174; beta =.46; t = 2.46; P <.05), which also predicted avoidance scores (adjusted R(2) = 0.203; beta =.48; t = 2.62; P <.05). CONCLUSIONS: Because many of the symptoms of PTSD are self-remitting, and intervening too early in the course of the disorder may exacerbate the disorder, it is important not to intervene too early or over-treat this disorder. Formal treatment may be useful if provided some months after discharge from hospital. If either secondary or primary care services are to treat myocardial infarction-related PTSD effectively, it is important to identify patients who are at risk for it. These data contribute to the development of a profile of patients at risk.

Cohort Studies↗
PubMedDate not supplied

Risky single-occasion drinking amongst young people--definition, correlates, policy, and intervention: a broad overview of research findings.

Risky single-occasion drinking (RSOD) has dire consequences upon health and well-being including unplanned pregnancies, sexually transmitted diseases such as HIV/AIDS, crime, and car accidents. The prevalence of RSOD among young people is alarming. Despite this, as yet, a review of existing literature on RSOD amongst young people is lacking. This article will provide an overview of this area of research focusing on the definition of RSOD, its prevalence among young people, health and behavioural effects of RSOD, the perceived risk of RSOD among young people, and interventions to reduce RSOD in young people. In addition, recommendations are made for health educators interested in reducing the incidence of RSOD in young people.

Adolescent↗
PubMedDate not supplied

A haemodialysis nutritional screening tool for nurses--a pilot study.

The purpose of the study was to pilot a nurse-performed nutritional screening tool (NST) for dialysis patients in order to identify nutritionally at-risk patients. Haemodialysis (HD) patients are at risk of nutritional-related problems. Nutritional screening by nurses may assist in the early recognition of and response to these problems. An NST was developed using 9 screening parameters. (BMI, weight change, poor appetite, GI symptoms, albumin, pre-dialysis urea, K+, PO4++, HbA1c). The NST was compared with Standard Dietitian Assessment (SDA). 44 HD patients were screened with the NST and then with SDA. The tool showed sensitivity of 0.7 (95%CI+/- 0.21) and a specificity of 0.77 (95%CI+/-0.16). Reliability was low (alpha = .18). Alpha increased to 0.32 if pre-dialysis urea was removed from the tool and increased to 0.48 if weight loss, appetite, K+ and PO4++ were used alone. The pilot study showed a low reliability of the NST compared with SDA. With further analysis and modifications, the NST has the potential to assist nutritional screening by nurses in dialysis centres that have limited dietetic access.

Humans↗