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Biomedical subjects

H Beckmann

Publications and source records attributed to H Beckmann.

284 records · Page 16Linked to original sources

Abnormal responsiveness of growth hormone to human corticotropin-releasing hormone in major depressive disorder.

Plasma growth hormone (GH) release after injection of 100 micrograms synthetic human corticotropin-releasing hormone (hCRH) was investigated in 11 patients with major depressive disorder and normal controls matched for gender, age, body weight and ovarian status. In contrast to controls, who exhibited no significant GH response to CRH, depressed patients showed a significant net increase in GH secretion following CRH administration. The abnormal GH response to CRH was not correlated with baseline corticotropin (ACTH) and cortisol nor with CRH-induced ACTH and cortisol response. The implications of these findings are discussed with reference to such factors as alpha-adrenergic hyperactivity, hypothalamic-pituitary system dysregulation, drug interference, non-specific stress responses and abnormal neuroendocrine circadian rhythms in major depression.

Adrenocorticotropic Hormone↗

Lymphocyte glucocorticoid receptor binding during depression and after clinical recovery.

Lymphocyte glucocorticoid receptor binding parameters were studied in 15 severely depressed patients during depression and after clinical recovery, and in 15 healthy controls. There was no difference in glucocorticoid receptor number or affinity between depressed patients and recovered or control subjects. Afternoon ACTH and cortisol concentrations did not differ significantly between the three groups. No relationship could be established between glucocorticoid receptor binding and antidepressant medication. These data support the view of an impaired ligand-induced plasticity of glucocorticoid receptor regulation rather than the hypothesis of decreased glucocorticoid receptor numbers during depression.

Adolescent↗

Pulmonary deposition of monodisperse aerosols in patients with chronic obstructive pulmonary disease.

In order to improve patient convenience and drug availability for patients with alpha 1-protease inhibitor deficiency, the administration via the inhalation route has been considered. This study investigated if it is possible to obtain high values of peripheral aerosol deposition by using optimized and controlled inhalation conditions. Therefore, peripheral deposition was studied in 10 patients with alpha 1-protease inhibitor deficiency (phenotype PiZ) and moderate to severe chronic obstructive pulmonary disease by measuring the 24-hour Clearance of radiolabeled inert iron oxide particles with diameters of 2 microns, 3 microns, and 4 microns. Patients inhaled a large volume of aerosol (1000 to 2000 cm3), which was normalized to the individual lung function, with a flow rate of 200 cm3/S. Due to this breathing pattern, peripheral deposition was for all particle sizes above 50% of the inhaled aerosol. The highest peripheral deposition (68%) was found for 3-microns particles.

Administration, Inhalation↗

Gender differences and age of onset in the catatonic subtypes of schizophrenia.

In a family study involving 139 probands with chronic DSM-III-R schizophrenia, catatonic type, 83 probands met the criteria for periodic catatonia and 56 probands those for systematic catatonia according to Leonhard. In the systematic catatonias, we found a low morbidity risk of 4.6% in first-degree relatives, an early age at first hospitalization and a high prevalence of affected males. In the light of our recent report of an association between maternal gestational infection and systematic schizophrenia, male fetuses exposed to midgestational infection seem to be particularly at risk of developing systematic catatonia. Periodic catatonia with a family morbidity risk of 26.9% affected both genders with equal frequency and showed no age-at-onset differences between the genders. We found a moderate inverse relationship between early-onset probands and an increased risk in relatives of 24.1% compared to 17.8% in late-onset probands. Our findings substantiate the hypothesis that periodic catatonia is a clinically homogenous disorder with a major gene effect and an age at onset which is to a large extent genetically determined.

Adult↗

Long-term course and outcome of severe postpartum psychiatric disorders.

Thirty-nine women who had suffered from a severe first-episode postpartum psychiatric illness were re-examined after a period of 6-26 years (averaging 12.5 years). Diagnoses were established according to ICD-10 and Leonhard's classification, revealing a marked predominance of cycloid psychoses (54%) according to Leonhard. There was no evidence of the nosological independence of postpartum psychosis. Only 4 patients (10%) had never recovered fully since the onset of the illness. In contrast, 6 patients had undergone a monophasic course without any further psychopathology. In 20 cases (51%) the illness had run a multiphasic course. The average number of episodes per patient was 2.5 (range 2-6). The course was not determinable in 4 patients (10%). Nineteen women (49%) had 22 further deliveries after the first manifestation of the illness. The frequency of a relapse in connection with further pregnancy or delivery was 50%. Applying the Strauss-Carpenter Outcome Scale, we found a favourable outcome for the total sample with a mean value of 14.1 (SD = 2.6). The vast majority of patients (75%) showed no persistent alterations. Our findings provide further evidence of a favourable prognosis of severe postpartum psychiatric disorder despite the remarkably high rate of puerperal relapses.

Adult↗

On interrater reliability for Leonhard's classification of endogenous psychoses.

Twenty-two patients with a diagnosis of schizophrenia according to DSM-III-R and ICD-10 criteria, for whom the long-term courses of illness were all well documented, were classified by 4 independent investigators using Leonhard's classification of endogenous psychoses. With regard to the large nosological groups of cycloid psychoses (including the subtypes of anxiety-happiness psychosis, confusional psychosis and motility psychosis), of unsystematic schizophrenias (including the subtypes of affect-laden paraphrenia, cataphasia and periodic catatonia), and of systematic schizophrenias (divided into systematic catatonias, systematic paraphrenias, and hebephrenias), is was possible to reach a high level of agreement in the diagnosis, representing a Cohen kappa coefficient of 0.82 and 0.89, respectively. In only 2 out of 22 patients were discrepancies observed in the assignment to the above-mentioned groups. This clearly shows the high reliability of Leonhard's classification, which allows a differentiated diagnostic and prognostic judgement of schizophrenic psychoses according to the DSM-III-R and ICD-10.

Adult↗