Low-density-lipoprotein metabolism in type II hyperlipoproteinaemia.
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Biomedical subjects
Publications and source records attributed to H G Morgan.
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Lipoprotein typing was undertaken in apparently healthy women (419) and men (103) in whom measurements of fasting total cholesterol, triglycerides, and cholesterol content of the major lipoprotein fractions were made. In the female group (30 to 59 years) there was a significant rise in total cholesterol, low density lipoprotein (LDL) cholesterol, and triglycerides with age. Using total cholesterol and triglyceride levels for classification, type II hyperlipoproteinaemia was present in 1 per cent and type IV in 6-7 per cent. When LDL cholesterol levels were also considered, type II occurred in 9-8 per cent ( 8-4% type IIA and 1-4% type IIB). In the male group ( 40 to 59 years) there was no increase in cholesterol or triglyceride levels with age: II per cent had type IV hyperlipoproteinaemia and none had a type II abnormality. When LDL cholesterol levels were also considered, type II occurred in 3 per cent ( 2% type IIA and 1% IIB). The apparent increase in LDL cholesterol frequency of type IIA abnormality in women could be merely the consequence of arbitrary selection of upper limits of normality for LDL cholesterol, but may signify improved detection of a high risk group.
Two-hundred-and-seventy-nine patients (103 men, 176 women) were followed-up 1-2 years after an act of non-fatal deliberate self-harm. Of 155 patients offered a psychiatric out-patient appointment at the time, only 68 completed the treatment. A further act of deliberate self-harm was committed by 26 men and 41 women within twelve months. The factors most highly associated with repetition were previous psychiatric treatment, a previous act of deliberate self-harm, and a criminal record. These factors held good for a separate series of patients. Significantly more repeaters received prolonged psychiatric care after the initial episode of deliberate self-harm. The implications of these findings for the clinical management of such patients are discussed.
A retrospective, multi-source screening study has detected 148 users (110 males, 38 females) of intravenous drugs who presented to all relevant agencies between 1971 and 1973 in Bristol, a city where maintenance therapy is a very infrequent practice. The peak prevalence was found in the age group 20-24 years, and it appeared that the chief sources of drugs were burglaries of chemists' shops and general practitioner prescriptions. Sixty-four per cent of our users had not been notified to the Home Office. Suggestions are made for the future monitoring and development of services.
The apolipoprotein A concentration in the plasma of ten healthy human subjects was measured immunologically on three occasions at monthly intervals and the following results recorded. 1. There was no difference between fasting and non-fasting apoprotein A concentrations. 2. Apoliportein A levels were higher in females than in males (p less than 0.001). 3. The correlation coefficient calculated for high density lipoprotein cholesterol and apolipoprotein A was 0.62. 4. The apoprotein values varied widely between subjects and ther were considerable concentration differences from month to month in the plasma of each individual.
This is a prognostic study on 41 patients with anorexia nervosa (including three males) who satisfied defined diagnostic criteria. The patients had all been admitted to a metabolic unit where the mainstay of treatment was nursing care aimed at rapid restoration of body weight. A follow-up was conducted after a minimum lapse of four years after each patient's discharge from hospital. The outcome of the patient's illness was expressed in terms of an 'average outcome score' and a 'general outcome'. The series included a relatively high proportion of patients with a long illness who had received previous psychiatric treatment. Their families tended to come from higher social classes; a disturbed relationship with the patient was frequent. Premorbid disturbances in personality development were also common. The immediate response to treatment was excellent, with the majority of the patients returning to a normal weight, but relapses after discharge were common and readmissions were necessary in half the patients. At follow-up, the patients fell into the following defined categories: 'good' (39%), 'intermediate' (27%), 'poor' (29%), died (5%). Most of the patients who failed to recover continued to display the clinical features characteristic of anorexia nervosa. Among predictors of an unfavourable outcome were found a relatively late age of onset, a longer duration of illness, previous admissions to psychiatric hospitals, a disturbed relationship between the patient and other members of the family, and premorbid personality difficulties. It is suggested according to the severity of their illness, rather than on the method of treatment itself. The illness may last several years before eventual improvement or recovery, and a follow-up study must be extended over at least four years to be meaningful. An accurate prediction of eventual outcome is almost impossible, but late recoveries justify an optimistic outlook and continued therapeutic endeavour.
1. The incidence of non-fatal deliberate self-harm throughout the City of Bristol during 1972 and 1973 was assessed by means of a survey of patients presenting to Accident and Emergency Departments of hospitals in the area. Fatal or repeated acts of self-harm were not included in the survey. 2. The rates for females exceeded those for males at all ages, with peak incidence of 645 per 100,000 females (age group 15-29 years) and 334 per 100,000 males (age group 25-29 years). Ninety-three per cent had taken a drug overdose of some kind. 3. The problem was found in all electoral wards of tE CITY, THOUGH ITS DISTRIBUTION WAS MARKEDLY CENTRIPETAL, WITH A CENTRAL AREA HAVING MORBIDITY RATES UP TO 2-8 TIMES THAT FOR THE CITY AS A WHOLE. 4. The socio-economic correlates of deliberate self-harm were examined by reference both to a series of 368 patients interviewed soon after the event and to the pattern of its distribution throughout the city. A significant positive association was found with areas of overcrowding, lack of exclusive domestic amenities and high proportion of foreign born residents, but there was no correlation with the proportion of persons living alone nor with the type of accommodation. 5. The central high rate area was found to be heterogeneous in socio-economic terms, ranging from a student and young professionals' bed-sitter area to one with a high proportion of unskilled manual labourers and New Commonwealth immigrants. 6. The aetiological implications of the ecological findings for deliberate self-harm throughout the city are discussed.
In this study 368 patients were interviewed after they had attended the Bristol Royal Infirmary Accident and Emergency Department following a non-fatal act of deliberate self-harm. There were twice as many women (247) as men (121), and two thirds of the patients were in the 15-35 age group. Ninety-five per cent had taken a drug overdose, most commonly one or more of the tranquillizers, antidepressants, hypnotics or analgesics. Seventy-eight per cent had taken drugs prescribed by a doctor. Half the patients mentioned interpersonal conflict as a major precipitating factor in the episode. A psychiatric diagnosis was completed for all admitted patients, of whom 52 per cent were considered to be suffering from neurotic depression, 29 per cent from personality disorder, 12 per cent from functional psychosis and 10 per cent from alcohol addiction. Almost half had deliberately harmed themselves on a previous occasion. The series showed a greater than average incidence of unemployment, overcrowded living conditions, divorce and antisocial behaviour. The implications of these findings for the clinical management and prevention of non-fatal deliberate self-harm are discussed.
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Surveys of the apparently healthy working population of the West of Scotland have revealed a high prevalence of hyperlipoproteinaemia (HIP). In males, type IV occurred more frequently (12%) than in females (3.3%), although obesity played an important part in this finding. HLP also occurred frequently (61%) in survivors of myocardial infarction (type II 39%, type IV 22%) but less frequently in peripheral vascular disease (38%), although there was a higher prevalence in females (47%) than males (32%) largely due to an increased prevalence of type IIa (29.5% cf 7.5%). HLP did not appear to play a significant role in cerebrovascular disease.
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A 49-year-old woman, suffering from peripheral vascular disease, was found to have two lipoprotein abnormalities, namely, type III hyperlipoproteinaemia and sinking prebeta lipoprotein. Twenty-one members of the kindred were investigated in an attempt to determine the pattern of inheritance of both of these abnormalities. In a 21-year-old son of the proband plasma electrophoresis was in keeping with a type V hyperlipoproteinaemia. It is suggested that this may be a stage in the development of the characteristic type III pattern. If this is so it is consistent with previous suggestions of an incompletely penetrant single autosomal allele. Sinking prebeta lipoprotein was found in the plasma of two other members of the family. If this abnormality is also inherited as a single autosomal allele it must have a very low penetrance and the possibility that the abnormality is acquired cannot be excluded.
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