Biomedical subjects
B Craig
Publications and source records attributed to B Craig.
Adrenocorticotropic hormone, glucose and displacement activities in pigeons.
The possibility that displacement activities might be consequences of stress-induced humoral responses was investigated. Adrenocorticotropic hormone and glucose were injected into the brain ventricles of unrestrained domestic pigeons. ACTH leads to an increased frequency of yawning and headshaking and glucose to a decrease in arousal. It is concluded that these behavioural responses correspond partly with the displacement activities shown by birds. The role of the cerebrospinal fluid as a mediator of behaviourally active substances is discussed.
One DA program's answer to the need of a functional facility.
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Multiple intrapulmonary arteriovenous fistulas in childhood.
Pulmonary arteriovenous fistulas (AVFs) are a rare but recognized cause of cyanosis in childhood. Lesions may be acquired as in hepatopulmonary syndrome or they may be congenital, particularly in association with certain multisystem disorders. Large fistulas are more common than multiple small connections. Two cases. both boys, presenting in the first decade of life are described. "Bubble" echocardiography was the most telling investigation and strongly suggested the presence of AVFs in both cases. Each patient then underwent cardiac catheterization, which demonstrated normal pulmonary artery pressure and diffuse pulmonary telangiectasis. Both patients were treated effectively with nifedipine and continue with this mode of therapy.
Comparison of steady-state blood levels of two carbamazepine formulations.
The steady-state plasma level produced by brand-name carbamazepine (CBZ) (Tegretol, Ciba-Geigy) was compared with a generic formulation (Parke-Davis) in 10 subjects with partial epilepsy in a randomized, double-blind, cross-over clinical trial. In addition, seizure frequency and clinical and laboratory signs of toxicity were evaluated. Our results failed to show any difference in CBZ blood levels, seizure frequency, or clinical or laboratory signs of toxicity in patients receiving either the brand-name or generic formulation.
Understanding the determinants of preventive oral health behaviours.
Achieving oral health for the client is the goal of dental hygiene practice. The two major threats to oral health, dental caries and periodontal disease, can almost always be controlled if clients adopt appropriate oral health behaviours. A review of the literature indicates that many factors determine whether or not a client will adopt appropriate oral health behaviours. These factors include demographics, socialization, emotional status, perceptions and dental beliefs. Determining a client's attitudes towards oral health requires the active participation of both the client and the dental hygienist. Interview techniques borrowed from participatory and ethnographic research can be used during the assessment phase of the dental hygiene process to allow the dental hygienist to systematically explore the factors that may affect the practice of preventive oral health behaviours. Data gathered during this phase can then be used in the planning phase of the dental hygiene process to develop a strategy which is specifically designed to meet the assessed needs of the individual client.