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- Carlsson, Maria L., 1959, et al.
(författare)
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The 5-HT2A receptor antagonist M100907 is more effective in counteracting NMDA antagonist- than dopamine agonist-induced hyperactivity in mice
- 1999
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Ingår i: J Neural Transm. - 0300-9564. ; 106:2, s. 123-9
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Tidskriftsartikel (refereegranskat)abstract
- The purpose of the present study was to compare the effectiveness of the selective 5-HT2A antagonist M100907 in different psychosis models. The classical neuroleptic haloperidol was used as reference compound. Two hyperdopaminergia and two hypoglutamatergia mouse models were used. Hyperdopaminergia was produced by the DA releaser d-amphetamine or the DA uptake inhibitor GBR 12909. Hypoglutamatergia was produced by the un-competitive NMDA receptor antagonist MK-801 or the competitive NMDA receptor antagonist D-CPPene. M100907 was found to counteract the locomotor stimulant effects of the NMDA receptor antagonists MK-801 and D-CPPene, but spontaneous locomotion, d-amphetamine- and GBR-12909-induced hyperactivity were not significantly affected. Haloperidol, on the other hand, antagonized both NMDA antagonist- and DA agonist-induced hyperactivity, as well as spontaneous locomotion in the highest dose used. Based on the present and previous results we draw the conclusion that 5-HT2A receptor antagonists are particularly effective against behavioural anomalies resulting from hypoglutamatergia of various origins. The clinical implications of our results and conclusions would be that a 5-HT2A receptor antagonist, due to i a the low side effect liability, could be the preferable treatment strategy in various disorders associated with hypoglutamatergia; such conditions might include schizophrenia, childhood autism and dementia disorders.
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| 2. |
- Nilsson, Marie, 1968, et al.
(författare)
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Glycine and D-serine decrease MK-801-induced hyperactivity in mice
- 1997
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Ingår i: J Neural Transm. - 0300-9564. ; 104:11-12, s. 1195-205
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Tidskriftsartikel (refereegranskat)abstract
- It is well known that the un-competitive N-methyl-D-aspartate (NMDA) receptor antagonist phencyclidine can induce a syndrome in humans that mimics both positive and negative symptoms of schizophrenia. In the light of this observation, it has been hypothesised that schizophrenia might be due to a hypofunction of central glutamate systems. A glycine agonist, by strengthening glutamatergic transmission, has been suggested to be useful as treatment. A crucial issue is the uncertainty regarding the degree of saturation of the glycine site associated with the NMDA receptor. The purpose of this study was to investigate if it is possible to strengthen NMDA receptor-mediated neurotransmission by modulating the associated glycine site. The effects of systemic and intraventricular administration of glycine. D-serine and L-serine on the hyperactivity induced in mice by the uncompetitive NMDA receptor antagonist MK-801 were tested. Systemically administered glycine and D-serine were found to decrease MK-801-induced hyperactivity. Intraventricularly administered D-serine in doses of 50 or 100 micrograms/side was found to decrease MK-801-induced hyperactivity during the second half hour of registration; L-serine given in the same doses did not affect the MK-801-induced hyperactivity during this period. These data may suggest that the NMDA receptor-associated glycine site is not saturated in vivo.
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| 3. |
- Carlsson, Maria E., 1958-, et al.
(författare)
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Qualitative analysis of the questions raised by patients with gynecologic cancers and their relatives in an educational support group.
- 1999
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Ingår i: Journal of Cancer Education. - 0885-8195 .- 1543-0154. ; 14:1, s. 41-46
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND People's knowledge of cancer is generally inadequate to help them cope with a diagnosis of cancer. Educational support groups may allow cancer patients to receive information they want that is normally not covered in the individual clinical encounter. It was desired to identify the content of such information as reflected in the questions asked by cancer patients and their relatives in such support groups. METHOD The 329 questions asked by 41 patients and 11 of their relatives in 40 group sessions were analyzed and categorized. RESULTS The categories found are described. Almost 100 questions could be allocated to the category "the illness," of which the most common was, "Is cancer hereditary?" The questions made it clear that the patients had a wish and a need to understand cancer. CONCLUSION An educational support group provides a complement to, and not a substitute for, the clinical provision of medical information.
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| 7. |
- Carlsson, Maria, 1958-, et al.
(författare)
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How patients with gynecological cancer experience the information process
- 1998
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Ingår i: Journal of Psychosomatic Obstetrics and Gynaecology. - : Informa Healthcare. - 0167-482X .- 1743-8942. ; 19:4, s. 192-201
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Tidskriftsartikel (refereegranskat)abstract
- This qualitative study was designed to explore the kind of experiences women with a diagnosis of gynecological cancer have with regard to information given during their illness and how it could be improved. Data were collected through a semistructured interview which focused on the 24 women's experiences of the information given. The interviews were tape-recorded and transcribed verbatim for each participant, and analysed using a content analysis. Two main themes were revealed: to actively address questions, and the right to receive honest information. The results also include a short description on how information was offered, the patients' opinion of it and how the patients had sought information for themselves. When patients address questions they want honest answers. Some effort should also be made to identify patients who do not want information. If it is in accordance with the patient's and next-of-kin's wishes, efforts should be made to provide information at times when both can participate. Information given jointly to the patient and her family lessens the burden for the patient. In Sweden today, as a result of recent political decisions, caregivers must also consider the need to discuss economic issues.
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| 8. |
- Carlsson, Maria, 1958-
(författare)
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Informational support for patients with gynaecological cancer and their families
- 1997
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The main purpose of the present thesis was to gain a deeper knowledge and understanding of the informational need by women with gynaecological cancer and their families. The studies evaluate the experience of different kind of information giving; a telephone-help line; a 3 years educational group support programme; and information givings in ordinary care.There was a significant correlation to interest in an educational supportive group in the prestudy depending on age, legal status, educational level. Younger individuals, couples and people with a higher formal education were generally more interesting in participating (p<0.05). Patients who actively chose to participate m a an educational support group differed from the unselected control group even prior the intervention, they with a higher formal education were generally more interesting in participating, they felt more confused and angry than the control group. After intervention, the patients in the interventional group reported a significant improved level of knowledge about cancer.Both patients and next-of-kin request information about medical- and psychological aspects of the disease and its treatment. The evaluation of the questions in the educational supportive group show that patients and their relatives asked questions of a general nature, related to basic knowledge of cancer and treatment principles, and not directly related to their own illness. There was no general difference in knowledge level between cancer patients and the controls of healthy women. The length of formal education was the most important determinator of correct answers (p<0.01).Two main themes were revealed at the interviews about the patients informations preferences. These were to actively address questions and the right to receive honest information;It is concluded that differential information giving techniques are required to satisfy the patients' different preferences. The patients express an active role in the information giving process. They preferred information with numerous opportunities to address questions, that the staff have time for questions and that the questions are honestly answered.
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