Partial agonists in schizophrenia.
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Antipsychotic Agents↗
Biomedical subjects
D A Cousins
Publications and source records attributed to D A Cousins.
Medicolegal issues in paediatric practice: proceedings of the 4th Northern Regional Paediatric Colloquium.
Ethical dilemmas frequently arise in paediatric practice. Given the nature of the speciality, these issues are pertinent to both the medical and legal professions. It is of potential benefit for the professions to meet and discuss such cases outwith the immediate clinical setting. A series of such meetings have been held in the Northern region. We report the proceedings of the fourth meeting. Four cases were presented and the issues arising were debated. The key points from each discussion are described.
Adolescent↗
Atrophy of the putamen in dementia with Lewy bodies but not Alzheimer's disease: an MRI study.
OBJECTIVE: To compare the volume of the putamen on MRI in subjects with Alzheimer's disease (AD) and dementia with Lewy bodies (DLB) and age-matched normal control subjects, along with the relationship between putamen volume and severity of both extrapyramidal signs and cognitive impairment. METHODS: MRI-based volumetric measurements at 1.5 T of total intracranial volume, total brain volume, and putamen volume were acquired in elderly patients with AD (n = 27; 77.6 years) and DLB (n = 14; 76.2 years) and normal control subjects (n = 37; 75.4 years). Patients and control subjects also underwent a standardized neuropsychiatric examination including the motor subsection of the Unified Parkinson's Disease Rating Scale (UPDRS III) and the Cambridge Cognitive Examination (CAMCOG) with Mini-Mental State Examination (MMSE). RESULTS: Patients with DLB had smaller raw putamen volumes than control subjects (right 12.5% reduction, p = 0.007; left 13.7% reduction, p = 0.003). When putamen volume was normalized to total intracranial volume, patients with DLB had significantly smaller volume ratios than both controls and patients with AD. Patients with AD did not differ from control subjects on any measure of putamen volume. Putamen volume did not correlate with age or with scores on UPDRS III, CAMCOG, or MMSE in any of the groups. CONCLUSIONS: Atrophy of the putamen is a feature of DLB. This may be important in understanding the etiology of parkinsonian features seen in DLB, though in this study, no direct correlation was found between degree of volume loss and severity of parkinsonism.
Aged↗