Colin Demellweek

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AIM Mildly depressed IQ is common in treated phenylketonuria. This study explored whether a particular intellectual ability profile typifies early and continuously treated phenylketonuria and whether component skills comprising the IQ relate to socioeconomic and treatment factors. METHODS IQ scores were collected retrospectively from variants of the(More)
OBJECTIVE To study the prevalence of, and identify possible risk factors for, the development of post-traumatic epilepsy in a cohort of children with severe head injury treated in an inpatient rehabilitation unit. METHODS The hospital and community medical case notes of all children admitted prospectively to the unit and the records of the clinical EEG(More)
An hypothesis is presented about the nature of behavioural tolerance in animals to stimulant drugs. It is suggested that, in many behavioural procedures, tolerance is due to behavioural adaptation to those drug effects which cause disruption of ongoing rewarded behaviour. This unitary hypothesis accounts for the available data on tolerance and(More)
Deprived rats given 2.5 mg/kg d-amphetamine before milk access developed anorectic tolerance. Rats given identical treatment after milk access did not exhibit tolerance in a subsequent test when the drug was given before milk access, nor did they subsequently acquire tolerance more rapidly than drug-naive animals. Manipulations of the amount of lab chow(More)
Forty-two infants (20 males, 22 females) with classical phenylketonuria (PKU) entered a prospective, double-blind, randomized study to investigate the effects on biochemical and physiological outcomes of a phenylalanine-free infant formula containing a fat blend supplemented with the long-chain polyunsaturated fatty acids (LC-PUFA), docosahexaenoic acid(More)
BACKGROUND Helminth (worm) infections are widespread and are thought to contribute to poor nutritional status, anaemia, and impaired growth and learning in children. OBJECTIVES To summarise the effects of anthelmintic drug treatment in children in relation to their growth and cognitive performance. SEARCH STRATEGY We searched the Cochrane Infectious(More)
OBJECTIVE To summarise the effects of anthelmintic drug treatment on growth and cognitive performance in children. DATA SOURCES Electronic databases: Cochrane Infectious Diseases Group controlled trial register, Cochrane controlled trials register, Embase, and Medline. Citations of all identified trials. Contact with the World Health Organization and(More)
BACKGROUND In communities where helminth (worm) infections are common, they may contribute to poor nutritional status, anaemia, and impaired growth and learning in children. The World Health Organization, the World Bank and others recommend that children are routinely given deworming drugs in developing countries. This requires resources to deliver. (More)
Two antiemetic drugs were tested on the expression of taste aversions previously conditioned in rats with lithium, amphetamine or morphine. Neither prochlorperazine nor scopolamine administered prior to testing attenuated established aversions, although both drugs are known to have antiemetic effects in other species. Negative findings were obtained with a(More)
The pre-morbid characteristics of 32 children requiring inpatient rehabilitation following moderate or severe head injuries were studied prospectively. Teachers completed Rutter and modified Conners questionnaires on the pre-head injury behavioural characteristics of each child and also rated the pre-morbid learning ability of the children on a four-point(More)