PSYCHOBIOLOGICAL ASPECTS OF THE ENDOGENOUS PSYCHOSES
Main researcher
: DURRIGL, VERA (72660) Assistants
FOLNEGOVIĆ-ŠMALC, VERA (75854)
HEĆIMOVIĆ, VLADIMIR (120275)
BURANJI, IVO (51350)
ŠTRKALJ-IVEZIĆ, SLAĐANA (149680)
MAROEVIĆ, SANJA (900395)
Type of research: applied Duration from: 01/01/91. to 12/31/94. Papers on project (total): 0
Institution name: Bolnica Vrapče, Zagreb (123) Department/Institute: Department of Psychiatric Research Address: Bolnička cesta 32 City: 10000 - Zagreb, Croatia
Communication
Phone: 385 (0)1 15 62 11
Fax: 385 (0)1 15 43 17
Summary: a) Using biological measuring instruments to explore
chronobiological aspects of endogenous depression we shall try to justify
chronobiological hypotheses of affective illnesses, especialla endogenous
depression. The analysis of the results obtained by means of biological
measuring instruments during psychotic epizodes and in remission will show
a possible genetic component of certain dysfunction of the brain which
comes to effect in disturbed REM sleep, while only the intensity of the
illness in relation to remission. We shall try to prove this by examining
the closest relatives of the subjects. The investigation will show whether
the circadian component of sleep is disturbed, the so-called "C process",
or the "S process", whichdepends on wakefulness, is disturbed. The analysis
of the obtained results will be our orientation to correct choice of
therapeutic methods and way of their use. b) A long-term follow-up
representative sample of schizophrenic patients will give us the factors
relevant for the course and prognosis of sch illness, most adequate
therapeutic approaches, and inthe case of positive finding of DNA markers
approach will be made to aethiology of schizophrenia. The results of
exploration of possible damaging effect of some psychotropic drugs in
patients who used these drugs during pregnancy, will be an important
practical contribution.
Keywords: endogenous depression, sleep, genetics schizophrenia, sch and follow-up, DNA markers for sch, sch and pregnancy, neuroleptics and pregnancy
Research goals: The following results have been obtained so far:
sleep latency is longer in female patinents with endogenous depression, but
the difference is not significant. Statistically significant is the
difference in total sleep time, which is shorter in the patients with
longer REM sleep and shorter deep stages of sleep. REM latency is shorter
in the group of ill persons, although not significantly, but REM density is
close to significant difference ( higher in group of patients). With
P<0.07, there is a significant difference in the number of delta waves in
the first 100 minutes of sleep, which are more frequent in the control
group ( i.e. healthy persons). Other goals are: 1) to prove genetic basis
of disturbed sleep in female patients suffering from endogenous depression
by comparing sleep of female patients never treated with the control group
of healthy females and also with the family members of the healthy females;
2) to investigate whether by arteficial changing of "readiness to sleep"
during the day we can increase the level of "process S", thus changing or
normalizing sleep ( the assumptiom is that by programmed increase of daily
activity, the so-called "active day", we can increase the level of "process
S") and so normalize sleep without antidepressive therapy; 3) analyze the
differences in sleep of responders and non-responders. We assume that
results will show greater similarity in sleep between the patients and
their family members than the control group, normalization of sleep. with
programmed daily activity, the so-called "active day" ( i.e. the increase
of the level of "S process") and, in non-responders, similarity of
disturbed sleep as well as in the acute phase of the illness. b)
Investigation of the natural course and prognosis of schizophrenia.
Especially important expected contribution is the correlation of some
therapeutic approaches and the outcome of the illness, both in general and
hospital prognoses;investigation of possible harmful effect of psychotropic
drugs on fetuses of schizophrenic mothers and finding out of chromosome
aberations caused by pharmacotherapeutic treatment of pregnant
schizophrenic patients; investigation of possible differences of
psychological characteristic between the groups of schizophrenic patinets
in different therapeutic treatments; investigation of changes in genes in
selected schizophrenic patinets with positive definitions of pedigree ( in
methods) and also in the group of schizoaffective. An important
contribution is finding uot of aetiology factors of schizophrenia and
affective psychoses and the analysis of certain therapeutic processes in
order to improve their efficacy.
COOPERATION - PROJECTS
COOPERATION - INSTITUTIONS
Name of institution
: PUK Basel Depressionsforschungsabteilung Type of institution: Economical/Production City: Basel, Švicarska