Die Bedeutung der diskontinuierlichen Zonierung des Immunglobulinbereiches für die Diagnose neurologischer Erkrankungen

Zusammenfassung 1. 340 Patienten, welche bei der agarelektrophoretischen Auftrennung der Liquorproteine eine diskontinuierliche Zonierung im Bereiche der -Globuline zeigten, wurden bezüglich Verteilung dieser clonalen -Zonen auf die verschiedenen neurologischen Erkrankungen untersucht.2. Bei der MS und den anderen entzündlichen neurologischen Erkrankungen findet sich eine Häufung der schnell wandernden Zone ₂ und der mittelschnell wandernden Zonen ₃ und ₄.3. Bei den Discushernien und den zentralnervös-nichtentzündlichen Erkrankungen ist die Zonenverteilung ziemlich flach und undifferenziert, wobei hier wie auch bei Tumoren und Polyneuritiden der relativ hohe ₀-Anteil auffällt als ein Phänomen, das bei zentralnervös-entzündlichen Prozessen nur selten anzutreffen ist. In den wenigen Tumorfällen mit -Zonierung scheint die ₄-Position deutlich zu überwiegen.4. In der Hälfte aller MS-Liquoren mit -Zonierung ist das Totalprotein, in einem Sechstel das Total--Globulin (rel%) normal, und nur bei zwei Dritteln finden sich Plasmazellen. Die elektrophoretische Feststellung von -Zonierung ist in der neurologischen Labordiagnostik folglich ein wichtiges Hilfskriterium.5. Mit zunehmendem Anstieg des -Globulin-Gehaltes im Liquor läßt sich bei MS-Patienten, nicht aber bei allen Krankheitsgruppen, eine Zunahme der Häufigkeit der -Zonierung nachweisen.6. Das Auftreten von -Zonierung ist bei den zentralnervös-entzündlichen Krankheiten und der MS sechsmal häufiger als bei den zentralnervös-nichtentzündlichen Krankheiten.7. -Zonierung scheint beim Gesunden, bei psychiatrischen Erkrankungen, Myopathien, bei gewissen Tumoren (Neurinomen) und metabolisch bedingten Polyneuritiden nicht vorzukommen.

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The significance of discontinuous zonation of electrophoretically separated globulins for the diagnosis of neurological diseases

Summary 1. 340 patients in whom discontinuous zonation of the globulin region was observed after electrophoretic separation of the CSF proteins were examined to see how the distribution of these clonal zones is correlated with different neurological diseases.2. In multiple sclerosis (MS) and other inflammatory diseases of the CNS, zones are most frequently found in the medium positions: ₂, ₃ and ₄.3. In disk hernias and the noninflammatory diseases of the CNS, the dispersion of zone frequency is rather undifferentiated. In these conditions and in tumors of the CNS and polyneuritis, the relatively high proportion of ₀ zones is a conspicuous feature; it is scarcely encountered in inflammatory processes of the CNS. The rare cases of tumors with zonation show a preponderance of the ₄ zone.4. The total protein content is normal in half of all MS fluids with zonation; in one sixth the relative amount of total globulin is also normal, whereas plasma cells are demonstrable in only two thirds. The electrophoretic evaluation of zonation is, therefore, an important tool in neurological laboratory work.5. Increased amounts of globulin in CSF are accompanied by an increased frequency of zonation in some diseases, such as MS, but not in tumors or vascular processes.6. The incidence of zonation is about 6 times higher in MS than in noninflammatory diseases of the CNS.7. zonation seems not to be present in healthy persons, in psychiatric diseases, myopathies, some tumors (neurinoma) and polyneuritis of metabolic-toxic etiology.

     

Are VEP abnormalities in optic neuritis (ON) dependent on plaque size? A reappraisal of the physiopathology of ON based on improved MRI and multiple-lead recordings

Twenty patients with optic neuritis (ON) described in the previous study [23] underwent serial VEP recordings (using multiple electrode arrays) for two years. The VEPs could be correlated with the lesions revealed by MRI, Visual Field tests and other clinical findings. On the basis of their scalp distribution, they were classified as really delayed VEPs and pseudo-delayed VEPs.Real delays could be recorded at the onset of ON or shortly afterwards, and their appearance indicated the recovery of visual function and a good prognosis.Pseudo-delays indicated an alteration in the visual field and, unless a breakthrough of normal or delayed components appeared in the first three months, following acute ON, indicate a poor prognosis for the recovery of visual function.The pseudo-delayed VEPs were mainly observed in patients with longer lesions revealed by means of LTE-STIR MRI [23]; there was no correlation between VEP latency and the length of plaques.Our findings contradict previous theories on the timing of conduction alterations in ON and multiple sclerosis.

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Sommario I 20 pazienti affetti da Neurite Ottica (NO), descritti nel precedente lavoro [23] sono stati sottoposti a registrazioni seriali multicanali dei Potenziali Evocati Visivi (PEV), per un periodo di 2 anni dall'esordio della NO. I PEV potevano correlare con le lesioni evidenziate con la Risonanza Magnetica, con le alterazioni campimetriche e con altri reperti clinici. Basandoci sulla loro distribuzione in mappa, i PEV sono stati classificati come realmente ritardati e pseudo-ritardati. PEV realmente ritardati potevano essere registrati all'esordio, o precocemente dopo l'episodio di NO, e la presenza del ritardo stava ad indicare un recupero della funzione visiva e, quindi, una prognosi fausta.Gli pseudo-ritardi indicavano un'alterazione del campo visivo a prognosi non favorevole per un recupero della funzione visiva, a meno che entro i primi 3 mesi dalla NO si fosse verificata una ricomparsa di componenti normali o ritardate.Gli pseudo-ritardi erano rilievi caratteristici nei pazienti con lesioni maggiormente lunghe alle immagini LTE-STIR MRI [23]. Nessuna correlazione è stata trovata tra latenza dei PEV e lunghezza delle placche.I nostri rilievi sono in disaccordo con precedenti teorie relative ai tempi di instaurazione-recupero delle alterazioni di conduzione nella NO e nella Sclerosi Multipla.

     

Hyperkinetic children: Early indicators of potential school failure

Hyperkinetic children are identified as a population-at risk upon admission to kindergarten. The etiology of hyperkinetic behavior is controversial. Organic driveness, hyperkinetic behavior disorder, postencephalitic behavior, brain damage with behavioral and conceptual deficit, Strauss syndrome, have all been used to label essentially similar symptom constellations. Bypassing the area of controversy, a study is reported that demonstrates that children who were identified as hyperkinetic (using behavioral criteria developed in an earlier study) were (1) absent from school more frequently, and (2) did remarkably less well on standardized tests of school readiness than their peers rated nonhyperkinetic. The implications are discussed and suggestions made for the development of intervention programs.An earlier version of this paper was presented at the Annual Meeting of the American Orthopsychiatric Association, March, 1967.     

Prevalence of known and hidden alcoholism in the revisited lundby population

Summary Using the new data from a second followup of the Lundby 1947 cohort, the aim of the present paper has been to analyze some relationships between known and hidden alcoholism in a Swedish general population sample. Information was collected by psychiatrists trough free, exploratory field interviews checked against documentary records. Alcoholism was medically defined for present purposes. Information was obtained for 98% of the 952 men surviving the cross-section date July 1, 1972. The distribution of alcoholism and other psychiatric disorders in the total population and in age subgroups was analyzed epidemiologically. The true prevalence of alcoholism in the adult men was 9.5%, comprising 7.2% known and 2.3% hidden. The proportion of hidden to known cases was 0.301 (Temperance Boards 0.871, Psychiatric Agencies 0.961, Drinking and driving offences 4.31). The main finding that about 70% of male alcoholics in Lundby appears to be known to the agencies is at variance with current views that there is an iceberg under the tip, though consistent with Rubington's suggestion that so-called hidden alcoholism is not totally but partially invisible in welfare societies.     

Ultrastructure of peripheral nerve in metachromatic leucodystrophy

Summary An electron microscopical study of two consecutive nerve biopsies from a patient with metachromatic leucodystrophy (sulphatide lipidosis) was made. The ultrastructural changes observed consisted of: a) irregular whorls of myelin. The myelin in the whorls showed a thickened, sometimes doubled, intraperiod line, which was barely visible in compact myelin; b) inclusion bodies up to 1 in diameter in the cytoplasm of Schwann cells. These had a lamellar structure, with stacked membranes 60 Å apart; c) a loose pattern of the myelin in some nerve fibers, with loss of the intraperiod line, and d) presence of abnormally dense mitochondria with thickened cristae in Schwann cells. It is suggested that: a) the whorl formation and the ultrastructural abnormalities of the myelin in the whorls may be due to impaired myelin synthesis, and b) that the inclusion bodies may represent the accumulation of cerebroside sulfate in micellar aggregates. The loose pattern of myelin is considered artifactural until proven otherwise.

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Zusammenfassung Zwei aufeinanderfolgende Nervenbiopsien bei einem Patienten mit metachromatischer Leukodystrophie (Sulfatid-Lipoidose) wurden elektronenoptisch untersucht. Die beobachteten ultrastrukturellen Veränderungen bestehen in: a) unregelmäßigen Wirbelbildungen (whorls), in welchen das Myelin Verdickungen, manchmal Verdopplung des Zwischenstreifens (intraperiod line) aufweist, was im kompakten Myelin kaum sichtbar ist. b) Einschlußkörperchen mit einem Durchmesser bis zu1 im Cytoplasma der Schwann-Zellen. Diese weisen lamelläre Struktur mit einem Membranabstand von 60 Å auf. c) ein lockeres (loose) Myelinmuster mit Verlust des Zwischenstreifens in einigen Nervenfasern und d) Auftreten von abnorm dichten Mitochondrien mit verdicktem Cristae in Schwann-Zellen. Es wird angenommen, daß a) die Wirbelbildungen und die ultrastrukturellen Myelinabnormitäten in den Wirbeln einer gestörten Myelinsynthese entsprechen und b) daß die Einschlußkörperchen die Anhäufung von Cerebrosidsulfat in micellaren Verbänden darstellen. Das lockere Myelinmuster wird vorläufig als artifiziell angesehen.

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This investigation was supported in part by Public Health Service Research Grant No. FR-86 from the N.I.H. Division of Research Facilities and Resources.     

Gestalt- und erkenntnispsychologischer Beitrag zum melancholischen Wahn

Zusammenfassung Gestalt- und erkenntnispsychologische Zusammenhänge ergeben, daß dem melancholischen Wahn ein ametrisches Verhältnis der das menschliche Weltbild mitkonstituierenden Strukturtendenzen der Prägnanztendenz sowie des antiprägnanten Gestaltreizes der Welt zugrunde liegt. Dabei verstehen wir unter Weltbild die Erkenntnisgestalt der Welt, die vorweg (a priori) bestimmt, was je—individuell wirklich erkannt und verstanden wird. In der Melancholie kommt es nun durch eine Reduktion der Prägnanztendenz zu einem extrem einseitigen Bestimmtsein des Weltbildes durch den antiprägnanten Gestaltreiz der Welt. Die Folge dieser ametrischen Strukturiertheit des Weltbildes ist eine pathologische Wirklichkeitsgewißheit (Wahngewißheit) in allen Erkenntnisfunktionen also auch in der Vorstellung, in der Phantasie und in der Einbildung. Die Inhalte der melancholischen Wahnerlebnisse aber gehen auf den antiprägnanten Gestaltreiz der Welt zurück, der im Verlauf der normalen aktualgenetischen Entwicklung des Weltbildes zunehmend auf den Abbau und Zerfall der von der Prägnanztendenz intendierten Erkenntnisinhalte z. B. der immer intakten und integren Leib-, Ich- und Kommunikationsgestalt des Menschen aus ist, damit vom Erwachsenen auch Nichtintegres und Nichtintaktes sowie Zerfall in jeder Form verstanden und bewältigt werden kann. Die Gerichtetheit des antiprägnanten Gestaltreizes der Welt erkennt man in den melancholischen Wahnerlebnissen des Zerfalls des Leibes bis zur Verwesung bei lebendigem Leibe oder des Zerfalls der Ichgestalt bis zum nihuil unmittelbar wieder.Keine eindeutigen Aussagen jedoch erlauben unsere Beobachtungen über einen Wandel im Strukturverhältnis der Tendenz nach Wesenseigenschaften zur rein sachlichen Sinngehaltlichkeit der Individualgestalten in der Melancholie, während nach Matussek (1963) Wesenseigenschaften in der schizophrenen Wahrnehmungswelt einen Vorrang haben.     

GSK-3β in cerebrospinal fluid of schizophrenia patients

Summary. Cerebrospinal fluid contains proteins and metabolites of brain origin and was extensively studied in psychiatry in the 1970s with few definitive results. We have recently found 40% reduced protein levels of GSK-3 in schizophrenia in postmortem prefrontal cortex, but our attempt to develop a diagnostic marker using peripheral lymphocyte GSK-3 was not successful. In this study we aimed to find whether the reduction in brain GSK-3 is reflected in CSF of schizophrenia patients. We report a significant reduction in CSF GSK-3 protein levels in six schizophrenia patients compared to seventeen healthy subjects. Our results corroborate other studies in which CSF protein levels reflect the alteration found in these proteins in schizophrenia patients postmortem brain.     

Group psychotherapy and the mosaic adolescent society

Discussion of the influence of peer group mores and values on the adolescent patient's dysfunctional behaviors and treatment outcome. When the group therapist thinks peer, the group will focus on important issues such as inclusion, acceptance and awareness of the contrasting beliefs of the numerous peer subcultures within adolescent society. Strategies and approaches to create a therapeutic group milieu and structure are outlined to enable unwanteds to enter peer groups which support rather than impede the attainment of treatment goals. The need for leadership to be responsive to group members who have not experienced negentropic or functional systems is emphasized.     

Vegetative Funktionen und körperliche Aktivität in der endogenen Depression

Zusammenfassung Bei einem 66 Jahre alten männlichen Patienten mit 48-h-Zyklen einer unipolaren endogenen Depression wurden vegetative Funktionen untersucht. Speichelsekretion, Körpertemperatur und körperliche Aktivität wurden am Tage in 3-h-Abständen und einmal nachts gemessen. Die Stimmung wurde mit Hilfe von zwei Selbstbeurteilungsskalen beurteilt. Die Skalenwerte ergaben eine regelmäßige Abfolge von guten und schlechten Tagen. Die Speichelsekretion war an guten Tagen gegenüber den Meß-werten an schlechten Tagen erhöht. Dieser Unterschied war am Morgen besonders deutlich (P<0.002, 10.00). Die Form des 24-h-Profils der Speichelsekretion war an guten und schlechten Tagen unterschiedlich: an guten Tagen lag das Maximum um 10.00 Uhr, an schlechten Tagen um 16.00 Uhr. Dagegen zeigte die Lage des nächtlichen Minimums keinen Unterschied zwischen guten und schlechten Tagen. Die Meßwerte der Körpertemperatur waren gegenüber Normalwerten deutlich erhöht (Mittelwerte um 37,2° C) und zeigten eine geringe Amplitude des Tagesganges. An guten Tagen lag die Körpertemperatur tagsüber im Mittel um 0,1°C höher als an schlechten Tagen. Die körperliche Aktivität (Arm und Bein) wurde mit Hilfe eines Aktometers (activity watch) registriert. Die Meßwerte waren tagsüber an guten Tagen höher als an schlechten Tagen. Die vorliegenden Befunde geben Hinweise auf eine zentrale Regulationsstörung vegetativer Funktionen bei der endogenen Depression.Die Autoren dieser Arbeit sind Mitglieder einer Arbeitsgruppe, die sich am Max-PlanckInstitut für Psychiatrie mit der Pathophysiologie und Chronobiologie depressiver Syndrome befaßt     

The immorality of morality

The psychiatrist cum humanist wonders aloud why euthenics is almost as dirty a word as eugenics—with special emphasis on the psychiatric establishment.For example: Unlike the complaint bureaus of commerical establishments, mental health services operate on the basis that the customer is always wrong.This article is a revision of a longer paper delivered at the 49th Annual Meeting of the American Orthopsychiatric Association in 1972.     

Attitudes toward mental health professionals in a hospital-based community mental health center

This study examined the attitudes of several diverse subject groups in a large medical center toward various mental health professionals. The groups consisted of: 1) general hospital staff; 2) professional mental health workers; and 3) psychiatric in-patients. Subjects evaluated a selection of 11 professional health related role titles (clinical psychologist, physician, psychiatrist, etc.) and the categories me and mental patient by marking a series of 19 seven-step rating scales, each composed of bipolar anchoring adjectives. Additionally, a familiarity rating for each of the role titles was obtained. An understanding and a value cluster were derived from the 19 adjectives along with an overall favorability-unfavorability score for each role title. It was expected that subjects would value mental health professional roles more strongly than they would indicate an understanding of these same roles. Secondly, it was expected that the hospital setting itself, the subject's role within that setting, and the degree of familiarity with the role being rated would have a significant impact on the subject's attitude. Results generally supported the above expectations. Overall ratings of the professional groups were consistently high, with less difference between the health designations (physician, nurse) and the psych designations than has been previously reported in the literature.     

γ-Enolase and glial fibrillary acidic protein in nervous system tumors

Summary A large series of central and peripheral nervous system tumors was studied for the presence of glial fibrillary acidic protein (GFAP) and -enolase (neuron-specific enolase, NSE), using specific monoclonal antibodies (mAbs). Occurrence in and specificity of GFAP to glial and mixed tumors was confirmed and depended on the malignancy grade and features such as meningeal invasion. Using a well-characterized mAb, -enolase was demonstrated in neuronal, as well as in a whole range of non-neuronal tumors. This lack of specificity of -enolase prohibits its use as an exclusive neuronal marker. Nevertheless quantization or comparison with other types of enolases could still prove to be useful in well-defined situations. The advantages inherent to mAbs and a highly sensitive detection system turn GFAP stainings into a specific and readily reproducible technique.Supported in part by FGWO (grant no. 3.0019.86) and by the Geconcerteerde Actie (grant no. 84/89-68, Brain specific proteins)     

The effect of non-response bias on the results of two-stage screening surveys of psychiatric disorder

Summary The effects are examined of two varieties of non-response bias (that due to illness and that due to defensiveness, as defined in this paper) on two-stage screening surveys for psychiatric disorder. Equations to model these effects are first derived; these are then used, in conjunction with pre-existing data, to estimate the sixe of the non-response bias. It is concluded (a) that bias due to illness results in prevalence estimates being some 5% lower than the true prevalence; (b) that specificity is little affected by either variety of bias; but that (c) bias due to defensiveness results in the sensitivity being overestimated by about 6%.     

Apurulent bacterial meningitis (compartmental leucopenia in purulent meningitis)

Summary Meningococci and Haemophilus influenzae may invade the subarachnoid space during the bacteriaemic phase without impairment of the blood-CSF barrier and in the absence of any leucocyte reaction. In pneumococcal meningitis the CSF may also contain less than 100 cells/l despite the presence of pure bacterial cultures, but the barrier is completely broken when the serum/CSF concentration ratio is below 10. A clinical analysis of eight patients with fewer than 100 cells/l revealed that the first symptoms of meningitis appeared at least 3 days prior to the diagnostic lumbar puncture. There was a strong neutrophilic reaction in the blood with a prevalence of juvenile forms in most cases, indicating intact antibacterial defence mechanisms. Within 24 h after the start of antibiotic therapy the cell number rose above 2000/l accompanied by disappearance of pneumococci. Six of the eight patients died. In three cases autopsy revealed thick layers of pus over the convexities, indicating a compartmental separation of the ventricles and the spinal subarachnoid space. In one case of late diagnosed bacterial meningitis with a pleocytosis of 430/l the CSF lysozyme level was seven times higher than compatible with this cell number. Hyperphagocytosis and cellular disintegration is thought to cause the leucopenia within the spinal CSF compartment. Apurulent bacterial meningitis can be seen as a disease entity that is a diagnostic pitfall and also a prognostic sign.     

Refraktärperioden und frequente Impulsfortleitung im gemischten N. ulnaris des Menschen bei Polyneuropathien

Zusammenfassung Bei 30 Patienten mit Neuropathien unterschiedlichen Schweregrades (subklinisch, leicht, mittelschwer und schwer) wurden am N. ulnaris neben den üblichen neurophysiologischen Parametern [distale Latenz, maximale motorische und gemischte Nervenleitgeschwindigkeit (Nlg.)] die Refraktärperioden (Rp.) (absolute Rp. und relative Rp.-Amplitude und -Latenz) und die unteren Grenzfrequenzen (u. F.) (u. F.-Amplitude und -Latenz) bestimmt.Beim Vergleich mit einem Normalkollektiv (n=31, s. Lowitzsch u. Hopf, (1972a)) war die Nlg. nur in 37% der Fälle pathologisch verlangsamt, während die relative Rp.-Latenz in ca. 80% und die u. F.-Latenz in ca. 60% pathologisch verändert waren.In zwei Stichproben (13 Normalfälle und 13 Polyneuropathien) mit einer normalen gemischten Nlg. von 51,0–63,5 m/sec unterschieden sich die Mittelwerte für die distale Latenz sowie die motorische und gemischte Nlg. statistisch nur auf dem 1%-Niveau, für die relative Rp.-Latenz und die u. F.-Latenz hingegen auf dem 0,5-Niveau.Die Bestimmung der Refraktärperioden, insbesondere der rel. Rp. L., sowie der unteren Grenzfrequenz (u. F. L.), stellt eine im Vergleich mit den üblichen neurophysiologischen Verfahren (Nlg.-Bestimmung) wesentlich empfindlichere Untersuchungsmethode zur Erfassung auch geringer (subklinischer) Funktionsstörungen des peripheren Nervensystems dar.Die unterschiedliche Beeinflussung der Refraktärperioden und der Grenzfrequenzen durch die Art des zugrundeliegenden pathologischen Prozesses (axonale Degeneration — segmentale Demyelinisierung — Mischtyp) wird an Hand der in 9 Fällen nervenbioptisch (N. suralis) gewonnenen Befunde diskutiert.

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Refractory periods and frequent impulse conduction in mixed N. ulnaris of man in polyneuropathies

Summary Some electrophysiological parameters were studied in the ulnar nerve of 30 patients suffering from neuropathy of various origin and severity.Absolute and relative refractory periods and lower limiting frequencies were measured and compared to the usual parameters (distal motor latency, conduction velocity of motor fibres, and the mixed nerve action potential).The conduction velocity was indicative of the diseased function in 37% whereas the relative refractory period (latency) was abnormal in nearly 80% and the lower limiting frequency (latency) in about 60%.Two samples taken at random, each of them consisting of 13 patients with normal conduction velocities between 51.0 and 63.5 m/sec showed differences only at the 1% level (p<0.01) as far as the mean values of the distal latency and the maximum conduction velocity were concerned. The difference between the mean values of the relative refractory period (latency) and of the lower limiting frequency (latency), however, was highly significant (p<0.0005). Thus, in our experience, the relative refractory period (latency) and the lower limiting frequency (latency) are more sensitive indicators of mild functional disturbances of peripheral nerves than the maximum conduction velocity.

Die Untersuchungen wurden in dankenswerter Weise von der Deutschen Forschungsgemeinschaft unterstützt.     

Visual pattern evoked responses and blink reflexes in assessment of MS diagnosis

Summary VEPs were measured after pattern reversal in 135 MS patients and 30 control subjects. Neurological findings were documented in a standard manner. An extensive ophthalmological examination of all subjects was part of the study. The latency of P₂ was abnormally delayed in 82% of the definite, in 60% of the probable and in 65% of the possible MS groups respectively. The VEP was more often delayed in relation to ophthalmological disturbances. Changes in the MS classification had to be made in more than 10% of the patients, due to delay of VEP latency. These were patients with a spinal form of MS, which is known to create diagnostic problems.Optically and electrically evoked blink reflexes were recorded in 107 MS patients. All patients with mesencephalic lesions had delayed responses of the optically evoked reflex. 74% of the patients with caudal brainstem lesions had delayed latencies of the components of the electrically evoked blink reflex. The blink reflex was delayed in 18 additional patients without brainstem signs. The possibility of delineating clinically silent brainstem lesions by investigating blink reflexes is discussed.Supported by the Deutsche Forschungsgemeinschaft (Dr. Fischer Bosch-Stiftung).     

A case history analysis of the “manic type” and the “melancholic type” of premorbid personality in affectively ill patients

Summary The use of case histories in examining the premorbid personality of affectively ill patients is especially useful in the case of patients with a predominantly manic course of the disorder, because this kind of affective illness is very rare. The concept of the manic type of premorbid personality is described in detail and contrasted with the concept of the melancholic type often found in patients with a purely depressive course of the illness.     

Schizophrenia suspecta

Summary We investigated what makes a Schneider-oriented psychiatrist diagnose suspected schizophrenia yet nevertheless stop short of a definitive diagnosis of schizophrenia. We compared the case records of 1208 patients hospitalised for schizophrenia for the first time in their life and all patients with discharge diagnosis suspected schizophrenia (n = 358).We found that the main factors for making the diagnosis of suspected schizophrenia are, as when using Bleuler's concept, intrasymptomatological ones, i.e. type, structure and constellation of symptoms. Hereby the non-committal character of the expression symptoms in the wider sense (Schneider), i.e. disorders of thought, of affect and behaviour, is of particular importance. Psychotic productive symptoms in the form of delusions or hallucinations alone are not always sufficient to confirm the diagnosis of schizophrenia. Even first rank symptoms cannot establish the diagnosis schizophrenia if certain factors reducing their pathognomonic value are present.Elaboration of the computer programme: Dr. rer. nat. E. Godehardt, Cologne University Institute of Medical Documentation and Statistics (Director: Prof. Dr. V. Weidtman)     

The Diverse Roles of Anticonvulsants in Bipolar Disorders

Anticonvulsant drugs (ACs) have diverse antiseizure, psychotropic, and biochemical effects. Carbamazepine and valproate have mood-stabilizing actions, benzodiazepines and gabapentin have anxiolytic actions, lamotrigine is useful in rapid cycling and acute treatment and prophylaxis of bipolar depression, and topiramate and zonisamide can yield weight loss. Limited controlled data suggest the carbamazepine keto derivative oxcarbazepine has antimanic effects. A categorical approach to the diverse roles of ACs in bipolar disorders is proposed, using broad categories of ACs, on the basis of their predominant psychotropic profiles. Thus, some ACs have sedating profiles that may include sedation, cognitive difficulties, fatigue, weight gain, and possibly antimanic and/or anxiolytic effects. In contrast, some newer ACs have activating profiles that may include improved energy, weight loss, and possibly antidepressant and even anxiogenic effects. Still other newer ACs have novel mixed profiles, combining sedation and weight loss. A categorical–mechanistic extension of this approach is also presented, with hypotheses that sedating profiles might be related to prominent potentiation of gamma-aminobutyric acid (GABA) inhibitory neurotransmission, activating profiles could be related to prominent attenuation of glutamate excitatory neurotransmission, and for mixed profiles, sedation and weight loss might be related to concurrent GABAergic and antiglutamatergic actions, respectively. The categorical approach may have utility as an aid to clinicians in reinforcing the heterogeneity ACs, and recalling psychotropic profiles of individual ACs, but is limited as it fails to address the etiology of the heterogeneity of AC psychotropic effects. The categorical–mechanistic extension strives to address this issue, but requires systematic clinical investigation of more precise relationships between psychotropic profiles and discrete mechanisms of action to assess its merits.     

Vergleich veränderter Bewußtseinszustände unter den Halluzinogenen (−)-Δ9-trans-Tetrahydrocannabinol (Δ9-THC) und N,N-Dimethyltryptamin (DMT)

Zusammenfassung Die Untersuchung vergleicht unter Verwendung zweier Placebo-Kontrollgruppen veränderte Bewußtseinszustände, die unter den Halluzinogenen (–)⁹-trans-Tetrahydrocannabinol (⁹-THC) und N,N-Dimethyltryptamin (DMT) auftreten. 24 Probanden erhielten 250g ⁹-THC p.o. pro kg Körpergewicht, und 26 Probänden wurde 250g DMT pro Körpergewicht i.m. appliziert. Die Placebogruppe bestand aus insgesamt 24 Probanden. Die Effekte wurden retrospektiv mit einem Fragebogen erfaßt, dessen Items nach inhaltlichen und testtheoretischen Gesichtspunkten zu den folgenden 8 Skalen zusammengefaßt wurden: Optische Sinnestäuschungen, akustische Sinnestäuschungen, Konzentrations- und Gedächtnisstörungen, Derealisationserscheinungen, Depersonalisationserscheinungen, Leiberlebensveränderungen, euphorisches Zustandsbild und dysphorisches Zustandsbild.In allen acht Syndromen unterschieden sich die beiden Halluzinogene signifikant von Placebo. Zwischen den Halluzinogenen konnte jedoch keine signifikante Differenz nachgewiesen werden. In der Skala optische Sinnestäuschungen zeigte sich als Tendenz, daß DMT hier eine stärkere Wirkung als ⁹-THC entfaltet.Methodische Probleme des Vergleichs verschiedener Halluzinogene werden diskutiert.