Bengt Lögdberg

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Postnatal exposure to lead or methyl mercury results in mental retardation, learning deficits, and other neurobehavioral effects in humans, and adverse consequences of prenatal exposure have been clearly documented with methyl mercury. To examine the developmental neurotoxicity of these metals, especially lead, concurrent schedules of food reinforcement(More)
Pregnant squirrel monkeys were exposed 5 days/week to mercury vapor at a concentration of 0.5 mg Hg/m3 air for 7 hr/day, or at 1 mg Hg/m3 air for 4 or 7 hr/day. The calculated total mercury absorption ranged between 0.8 and 5.4 mg (range of daily absorption 0.04-0.07 mg). The mercury concentration in the cerebral occipital lobe of the offspring ranged(More)
Morphometrical analysis of the frontal lobe neocortex of seven selected cases of mental retardation of unclassified aetiology and pathology, showing mild dysplastic changes of the neocortex on routine workup, were compared with nine normal controls and seven cases with Down's syndrome. In comparison with the normal controls, the group with 'unclassified'(More)
Eleven pregnant squirrel monkeys were perorally exposed to lead during the latter two-thirds of pregnancy [mean blood lead 0.54 microgram/ml (2.61 mumol/l), range 0.39-0.82 microgram/ml (1.88-3.96 mumol/l)], at a dosing regime producing no maternal toxic symptoms. Lesions similar to lead encephalopathy and growth retardation of the fetal cerebrum were seen(More)
OBJECTIVE To investigate the relationship between the prevalence of schizophrenia and measures of social deprivation in varying areas in the city of Malmö. METHOD A case-finding study of schizophrenia was combined with a victimization survey. Data was factor-analysed and visualized using geographical information system software. RESULTS The(More)
Timed-pregnant squirrel monkeys were exposed orally to lead during the last 1/2 to 2/3 of gestation such that maternal lead levels ranged from 21 to 70 micrograms/dl in blood. Offspring of these lead-exposed monkeys were compared to gender-matched, untreated controls (blood-lead levels from 4 to 9 micrograms/dl), born at about the same time. When the(More)
The psychiatric care of patients with schizophrenia has changed dramatically following the "deinstitutionalization" of mental health care in many Western countries. In a study of forensic autopsies in the Swedish city of Malmö between 1952 and 2005, we found an increase over time in the number of patients with schizophrenia whose bodies were not discovered(More)
The symptoms profile (modified Positive and Negative Syndrome Scale, PANSS) and the quality of life (Lancashire Quality of Life Profile, LQLP, and the Quality of Life Scale 100, QLS-100) were compared between two groups of patients with chronic psychoses: a rural group of 19 patients living in villages with < or =300-10,000 inhabitants and far away from a(More)
In order to obtain timed pregnancies in squirrel monkeys and to monitor development of the size of the fetus and its brain, tests were made of various combinations of vaginal examination, bioassay of chorionic gonadotropin (CG), measurement of maternal body weight and uterine fundus height during pregnancy, and determination of fetal biparietal diameter by(More)