| 1. |
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| 2. |
- Bång, Magnus, 1967-, et al.
(författare)
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Mobile phone computing for in-situ cognitive-behavioral therapy
- 2007
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Ingår i: MedINFO 2007,2007. - : IOS Press. - 9781586037741 ; , s. 1078-1082
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Konferensbidrag (refereegranskat)abstract
- Cognitive behavioral therapy (CBT) for psychological disorders is becoming increasingly popular on the Internet. However when using this workstation approach, components such as training and learning relaxation skills, problem solving, exposure exercises, and sleep management guidance must be done in the domestic environment. This paper describes design concepts for providing spatially explicit CBT with mobile phones. We reviewed and analyzed a set of treatment manuals to distinguish elements of CBT that can be improved and supported using mobile phone applications. The key advantage of mobile computing support in CBT is that multimedia can be applied to record, scale, and label anxiety-provoking situations where the need arises, which helps the CBT clients formulate and convey their thoughts and feelings to relatives and friends, as well as to therapists at subsequent treatment sessions.
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| 3. |
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| 4. |
- Eklundh, Thomas, et al.
(författare)
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Cerebrospinal fluid levels of monoamine compounds and cholecystokinin peptides after exposure to standardized barometric pressure
- 2000
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Ingår i: Aviation, Space and Environmental Medicine. - 0095-6562 .- 1943-4448. ; 71:11, s. 1131-1136
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Connections between mood changes and weather have been described throughout the ages, and in more recent years, there have been reports on a relationship between atmospheric pressure and neurotransmitter levels in cerebrospinal fluid.METHODS: To further investigate this issue under strictly standardized conditions, we have lumbar-punctured 8 healthy males under low (963 hPa) and high (1064 hPa) barometric pressure, using a pressure chamber.RESULTS: Under high pressure, the tyrosine concentrations in the cerebrospinal fluid (CSF) were lower, while the cholecystokinin tetrapeptide (CCK-4) levels were higher. No differences between low and high pressure were found for tryptophan, 5-hydroxyindolacetic acid (5-HIAA), dopamine (DA), and sulphated cholecystokinin octapeptide (CCK-8S). The serum level of CCK-8S was higher under high pressure. On comparing concentration ratios between the second and the first CSF fraction, we found significantly increased ratios for homovanillic acid (HVA) and 4-hydroxy-3-methoxyphenylglycol (HMPG), but a decreased ratio for tyrosine under high pressure. The difference in the concentration ratios of HVA between low and high pressure correlated negatively with age. Intraspinal pressure correlated negatively with tapping time at low pressure.CONCLUSION: Our results are in line with the hypothesis that atmospheric pressure influences CSF levels of monoamine compounds and cholecystokinin peptides.
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| 5. |
- Eklundh, Thomas, et al.
(författare)
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Intraspinal pressure influences CSF disposition of tryptophan and 5-HIAA
- 2001
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Ingår i: Neuropsychobiology. - : S. Karger AG. - 0302-282X .- 1423-0224. ; 44:2, s. 84-87
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Tidskriftsartikel (refereegranskat)abstract
- Cerebrospinal fluid (CSF) concentrations of monoamine compounds are influenced by factors such as age, gender, height, body weight, tapping time, and atmospheric pressure. We have now examined the role of intraspinal pressure. Thirteen male volunteers underwent lumbar puncture in the right decubitus position without preceding strict bed rest. The intraspinal pressure was recorded, and monoamine precursors, transmitters, and metabolites were analyzed in two consecutively collected CSF fractions. Tryptophan in 12 ml of CSF and the 5-hydroxyindoleacetic acid concentration ratio [fraction II (7-12 ml CSF)/fraction I (0-6 ml CSF)] correlated with the intraspinal pressure. Hypothetically, the intraspinal pressure may be a confounding factor for a correct interpretation of CSF tryptophan and 5-hydroxyindoleacetic acid concentrations, and this is an issue that has to be addressed in future CSF studies. Copyright ⌐ 2001 S. Karger AG, Basel.
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| 6. |
- Eklundh, Thomas, et al.
(författare)
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Monoamine compounds in cerebrospinal fluid of healthy subjects punctured without preceding strict bed rest : A pilot study
- 2001
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Ingår i: Neuropsychobiology. - : S. Karger AG. - 0302-282X .- 1423-0224. ; 43:1
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Tidskriftsartikel (refereegranskat)abstract
- The interpretation of data on compounds in the lumbar cerebrospinal fluid (CSF) is limited by several confounding factors, e.g. motor activity for which strict bed rest prior to lumbar puncture is recommended for standardisation. Now we report data from 14 healthy males employing the standardised procedure except for the requirement of strict bed rest. The levels of serotonin, noradrenaline, 5-hydroxyindoleacetic acid (5-HIAA), homovanillic acid and 4-hydroxy-3-methoxyphenylglycol in the second CSF fraction (7-12 ml) were significantly higher than those in the first fraction (0-6 ml), indicating the presence of concentration gradients. 5-HIAA was negatively influenced by age and the neuraxis distance in the lying position and positively by atmospheric pressure. Storage time and atmospheric pressure contributed to the variance in dopamine. Both tyrosine, tryptophan and dopamine were linearly correlated with storage time. We also found a significant curvilinear correlation between tapping time and atmospheric pressure. On comparing with previous studies, the results support the notion that the issue of strict bed rest or not prior to lumbar puncture might have to be taken into consideration when interpreting lumbar monoamine CSF data.
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| 7. |
- Erhardt, Sophie, et al.
(författare)
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Kynurenic acid levels ae elevated in the cerebrospinal fluid of patients with schizophrenia
- 2001
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Ingår i: Neuroscience Letters. - 0304-3940 .- 1872-7972. ; 313:1-2, s. 96-98
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Tidskriftsartikel (refereegranskat)abstract
- Kynurenic acid is an endogenous glutamate antagonist with a preferential action at the glycine-site of the N-methyl D-aspartate-receptor. Mounting evidence indicate that the compound is significantly involved in basal neurophysiological processes in the brain. In the present investigation, cerebrospinal fluid (CSF) level of kynurenic acid was analyzed in 28 male schizophrenic patients and 17 male healthy controls by means of high pressure liquid chromatography and fluorescence detection. Schizophrenic patients showed elevated CSF levels of kynurenic acid (1.67 ▒ 0.27 nM) compared to the control group (0.97 ▒ 0.07 nM). Furthermore, CSF levels of kynurenic acid in schizophrenic patients were also found to correlate with age. The present finding is indicative of a contribution of kynurenic acid in the pathogenesis of schizophrenia. ⌐ 2001 Elsevier Science Ireland Ltd. All rights reserved.
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| 8. |
- Gunnarsson, Tove, 1956-, et al.
(författare)
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Cholecystokinin peptides in cerebrospinal fluid : a pilot study in hypothyroid patients
- 1999
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Ingår i: Human Psychopharmacology. - 0885-6222 .- 1099-1077. ; 14:2, s. 113-117
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Tidskriftsartikel (refereegranskat)abstract
- The cholecystokinin tetrapeptide (CCK-4) and the sulphated octapeptide (CCK-8) were measured in cerebrospinal fluid obtained from nine hypothyroid patients before and during L-thyroxine treatment. Before treatment, CCK-4 and CCK-8S correlated negatively with S-TSH, whereas CCK-8S also showed a positive correlation with S-T3. During treatment, S-T4 correlated negatively with CCK-8S. CSF collection time was significantly shorter during treatment than prior to treatment for the first (0–6 ml) CSF fraction. On taking CSF collection time into account, the levels of both CCK-4 and CCK-8S in the first CSF fraction were significantly increased during medication. Our results are consistent with an impact of the hypothyroid disorder and L-thyroxine treatment on the disposition of CCK compounds in CSF. This might be due to an altered CSF circulation, but other mechanisms (e.g. metabolism or elimination) cannot be ruled out.
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| 9. |
- Gunnarsson, Tove, 1956-, et al.
(författare)
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Cholecystokinin peptides in cerebrospinal fluid : a study in healthy male subjects lumbar-punctured without preceding strict bed-rest
- 1999
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Ingår i: Journal of neural transmission. - : Springer Science and Business Media LLC. - 0300-9564 .- 1435-1463. ; 106:3-4, s. 275-282
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Tidskriftsartikel (refereegranskat)abstract
- In a recent study we analysed the concentrations of two forms of cholecystokinin (CCK), CCK-8S (sulphated) and CCK-4 in cerebrospinal fluid (CSF) obtained from 14 healthy male volunteers lumbar-punctured after a minimum of eight hours of strict bed-rest.We have now lumbar-punctured another group of 14 healthy males, using the same procedure except for the requirement of strict bed-rest prior to puncture.In contrast to our previous study, the concentration of CCK-4 (but not CCK-8S) was significantly higher in the second CSF fraction (7–12 ml) than in the first one (0–6 ml). On using the concentration ratio between the second and first fraction, CCK-8S (but not CCK-4) correlated positively with the atmospheric pressure, which is in contrast to our previous study in which a significant negative correlation was found.When the lumbar CSF concentrations were expressed as the concentration per minute of tapping-time (an estimate of the mass flow), atmospheric pressure, age and the neuraxis distance in the lying position made significant contributions to the variance in CCK-8S. A significant positive correlation with atmospheric pressure was found for CCK-4.In conclusion, the results indicate that the question of strict bed-rest or not prior to lumbar puncture may have to be considered when interpreting data on lumbar CSF concentrations of CCK. A controlled study is warranted.
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| 10. |
- Gunnarsson, Tove, 1956-, et al.
(författare)
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Depressive Symptoms in Hypothyroid Disorder with some Observations on Biochemical Correlates
- 2001
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Ingår i: Neuropsychobiology. - : S. Karger AG. - 0302-282X .- 1423-0224. ; 43:2, s. 70-74
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Tidskriftsartikel (refereegranskat)abstract
- Lumbar punctures and ratings of depressive symptoms were done in hypothyroid patients before and during L-thyroxine therapy. Before treatment, the most prominent symptoms were concentration difficulties, lassitude, and reduced sexual interest. All patients suffered from sleep disturbances. Suicidal thoughts did not occur at all. Inner tension was negatively correlated with the anxiogenic cholecystokinin tetrapeptide (CCK-4) in the cerebrospinal fluid (CSF), while reduced sexual interest was negatively correlated with CSF tryptophan. Furthermore, failing memory correlated negatively with T3 as well as T4 in serum. A positive correlation was found between failing memory and serum TSH. All patients improved significantly during treatment. No biochemical correlates were found. In conclusion, hypothyroidism is associated with major depressive symptoms. CSF CCK-4 and tryptophan, as well as serum thyroid hormones, may constitute biochemical correlates for some of these symptoms.
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| 11. |
- Hashimoto, Kenji, et al.
(författare)
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Elevated glutamine/glutamate ratio in cerebrospinal fluid of first episode and drug naive schizophrenic patients
- 2005
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Ingår i: BMC Psychiatry. - 1471-244X. ; 5
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Tidskriftsartikel (refereegranskat)abstract
- Background: Recent magnetic resonance spectroscopy (MRS) studies report that glutamine is altered in the brains of schizophrenic patients. There were also conflicting findings on glutamate in cerebrospinal fluid (CSF) of schizophrenic patients, and absent for glutamine. This study aims to clarify the question of glutamine and glutamate in CSF of first episode and drug naive schizophrenic patients. Method: Levels of glutamine and glutamate in CSF of 25 first episode and drug-naive male schizophrenic patients and 17 age-matched male healthy controls were measured by a high performance liquid chromatography. Results: The ratio (126.1 (median), 117.7 ± 27.4 (mean ± S.D.)) of glutamine to glutamate in the CSF of patients was significantly (z = -3.29, p = 0.001) higher than that (81.01 (median), 89.1 ± 22.5 (mean ± S.D.)) of normal controls although each level of glutamine and glutamate in patients was not different from that of normal controls. Conclusion: Our data suggests that a disfunction in glutamate-glutamine cycle in the brain may play a role in the pathophysiology of schizophrenia. © 2005 Hashimoto et al, licensee BioMed Central Ltd.
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| 12. |
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| 13. |
- Lundberg, Kristina, 1978-, et al.
(författare)
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Diurnal and seasonal variation of cholecystokinin peptides in humans
- 2007
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Ingår i: Neuropeptides. - : Elsevier BV. - 0143-4179 .- 1532-2785. ; 41:1, s. 59-63
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Tidskriftsartikel (refereegranskat)abstract
- Cholecystokinin (CCK) was determined in plasma obtained from 10 female (aged 23.4 ± SD 2.3 years) and nine male (aged 22.0 ± SD 1.4 years) healthy volunteers. Blood samples were drawn three times (8.00 a.m., 12 noon and 8.00 a.m.) on each of two sessions, one in the winter (November-December) and one in the summer (April-July). The participants had fasted (and were nicotine-free) since midnight preceding the sampling. A standardized breakfast was served after the first sampling. CCK was determined by radioimmunoassay. The area under the curve 0-24 h (AUC)CCK Winter was lower than AUCCCK Summer (F1:17 = 4.73, P = 0.0440) in the whole group of volunteers. On comparing the CCK concentrations within each session, there was an overall difference in winter (F2:36 = 14.81, P < 0.0001) as well in summer (F2:36 = 18.39, P < 0.0001). Post hoc comparisons yielded a difference between the 8.00 a.m. and 12 noon concentrations on the first day in winter (t = -3.96, P = 0.0009) as well as in summer (t = -4.64, P = 0.0002). The difference between the summer and winter AUCsCCK correlated with the difference between AUCs for temperatures in summer and winter (r = 0.58, P = 0.0089). The correlation was accounted for by the females (r = 0.73, P = 0.0171). The results are in accord with a diurnal and a seasonal variation of CCK in human plasma. © 2006 Elsevier Ltd. All rights reserved.
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| 14. |
- Lundmark, Jöns, 1953-, et al.
(författare)
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Therapeutic drug monitoring of selective serotonin reuptake inhibitors influences clinical dosing strategies and reduces drug costs in depressed elderly patients
- 2000
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Ingår i: Acta Psychiatrica Scandinavica. - : Wiley. - 0001-690X .- 1600-0447. ; 101:5, s. 354-359
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Tidskriftsartikel (refereegranskat)abstract
- Objective: This study was initiated in order to describe and evaluate the effects of a therapeutic drug monitoring (TDM) routine of selective serotonin reuptake inhibitors (SSRIs) on treatment strategies and drug costs in depressed elderly patients.Method: Blood samples were drawn from elderly depressed patients and analysed for steady-state trough serum concentrations of citalopram (n=48), paroxetine (n=48) or sertraline (n=39). A global efficacy evaluation was made at baseline and after 6–9 months. Antidepressant drug costs before and after TDM were estimated.Results: Eight samples were excluded due to technical problems or non-compliance. In 65 of the 127 (51.2%) remaining cases, the treatment strategy was changed according to the TDM outcome, in most a reduction of the prescribed dose. Bioanalytical TDM costs included the antidepressant drug costs after TDM were reduced by 10.2%.Conclusion: The results support the utility of TDM in the search for the individual minimum effective SSRI dose in the elderly.
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| 15. |
- Nilsson, Linda K, et al.
(författare)
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Cerebrospinal fluid kynurenic acid in male and female controls - Correlation with monoamine metabolites and influences of confounding factors
- 2007
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Ingår i: Journal of Psychiatric Research. - : Elsevier BV. - 0022-3956 .- 1879-1379. ; 41:1-2, s. 144-151
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Tidskriftsartikel (refereegranskat)abstract
- The concentrations of the tryptophan metabolite kynurenic acid (KYNA) and the monoamine metabolites homovanillic acid (HVA), 5-hydroxy-indoleacetic acid (5-HIAA) and 4-hydroxy-3-methoxyphenylglycol (HMPG) were determined in the cerebrospinal fluid (CSF) from 43 healthy volunteers (30 males and 13 females). Healthy female controls displayed higher CSF concentration of KYNA (1.91 nM ± 0.20) compared to healthy male controls (1.06 nM ± 0.07) and lower CSF levels of HMPG (39.2 nM ± 2.0 and 43.4 ± 1.2, respectively). CSF levels of HVA and 5-HIAA did not differ between females (181.3 nM ± 21.9 and 93.7 nM ± 11.4, respectively) and males (138.9 nM ± 12.6 and 74.8 nM ± 5.9, respectively). Positive intercorrelations were found between CSF KYNA, HVA and 5-HIAA while CSF content of HMPG did not correlate with KYNA or the other monoamine metabolites in CSF. A negative correlation was found between back length and CSF concentrations of KYNA, HVA and 5-HIAA and also between CSF KYNA levels and body height. The results of the present study suggest that concentrations of KYNA and the monoamine metabolites in CSF from healthy controls are dependent on gender and back length, which must be taken in consideration when analysing mixed groups of men and women. The higher KYNA concentration found in female controls compared to male might be attributed to a shorter back in women compared to men. Furthermore, these findings suggest that increased KYNA formation is associated with an increased dopamine and serotonin turnover. © 2005 Elsevier Ltd. All rights reserved.
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| 16. |
- Nilsson-Todd, Linda K, et al.
(författare)
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Cerebrospinal fluid kynurenic acid in male patients with schizophrenia - Correlation with monoamine metabolites
- 2007
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Ingår i: Acta Neuropsychiatrica. - : Cambridge University Press (CUP). - 0924-2708 .- 1601-5215. ; 19:1, s. 45-52
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Tidskriftsartikel (refereegranskat)abstract
- Background: The tryptophan metabolite kynurenic acid (KYNA) is an endogenous glutamate/nicotinic receptor antagonist. Previous studies have shown that the concentration of the compound is increased in cerebrospinal fluid (CSF) of patients with schizophrenia. Furthermore, it has been found that the CSF concentration of KYNA is positively correlated to CSF concentrations of the monoamine metabolites homovanillic acid (HVA) and 5-hydroxy indoleacetic acid (5-HIAA) in healthy control subjects. Objectives: To study the correlations between KYNA and the monoamine metabolites HVA, 5-HIAA and 4-hydroxy-3- methoxyphenylglycol (HMPG) in CSF of male patients (n = 53, ranging from 20 to 48 years of age) with verified schizophrenia. Methods: CSF was obtained by lumbar puncture, and KYNA analysis was performed with an isocratic reversed-phase high-performance liquid chromatography system connected to a fluorescence detector. HVA, 5-HIAA and HMPG concentrations were measured by mass fragmentography with deuterium-labelled internal standards. Results: Positive intercorrelations were found between CSF KYNA, HVA and 5-HIAA, while CSF content of HMPG did not correlate to KYNA or any of the monoamine metabolites in CSF. Conclusion: The results of this study suggest that increased KYNA formation is associated with an increased dopamine and serotonin turnover in male patients with schizophrenia. © 2007 Blackwell Munksgaard.
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| 17. |
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| 18. |
- Nordin, Conny, 1944-, et al.
(författare)
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Cerebrospinal fluid amino acids in pathological gamblers and healthy controls
- 2007
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Ingår i: Neuropsychobiology. - : S. Karger AG. - 0302-282X .- 1423-0224. ; 56:2-3, s. 152-158
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Tidskriftsartikel (refereegranskat)abstract
- Amino acids, such as valine, isoleucine and leucine compete with tyrosine and tryptophan for transport into the brain and might thus affect the central serotonin and catecholamine patterns. Furthermore, the excitatory amino acids glutamic acid, aspartic acid and glycine are known to act on the N-methyl-D-aspartate receptor, which is part of the reward system. Based on these facts, we have explored the role of cerebrospinal fluid (CSF) amino acids in pathological gambling. Concentrations of amino acids were determined in CSF obtained from one female and 11 pathological male gamblers and 11 healthy male controls. In an ANCOVA with best subset regression, pathological male gamblers had higher CSF levels of the excitatory glutamic and aspartic acids, as well as of phenylalanine, isoleucine, citrulline and glycine. A negative contribution of glycine in interaction with the neuraxis distance might mirror a reduced spinal supply or an altered elimination of glycine in pathological gamblers. A decreasing CSF gradient from the first (0-6 ml) to the third (13-18 ml) CSF fraction was found for glutamic acid, glycine, leucine, isoleucine, lysine, ornithine and glutamine in both pathological gamblers and healthy controls. A decreasing gradient was found, however, for aspartic acid and phenylalanine in pathological male gamblers. The altered pattern of CSF amino acids in pathological gamblers might exert an influence on central monoamines as well as on N-methyl-D-aspartate receptor function. Copyright © 2008 S. Karger AG.
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| 19. |
- Nordin, Conny, 1944-, et al.
(författare)
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CSF cholecystokinin, γ-aminobutyric acid and neuropeptide Y in pathological gamblers and healthy controls
- 2007
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Ingår i: Journal of neural transmission. - : Springer Science and Business Media LLC. - 0300-9564 .- 1435-1463. ; 114:4, s. 499-503
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Tidskriftsartikel (refereegranskat)abstract
- The sulphated cholecystokinin (CCK) octapeptide (CCK-8S), the CCK tetrapeptide (CCK-4), neuropeptide Y (NPY) and γ-aminobutyric acid (GABA) were determined in cerebrospinal fluid (CSF) obtained from 11 pathological male gamblers and 11 healthy male controls. Compared with healthy controls, pathological male gamblers displayed higher concentrations of CCK-8S, CCK-4 and GABA (but not NPY). A gradient with decreasing concentrations from the first to the third 6-ml CSF fraction was found for CCK-8S, CCK-4 and NPY, but only in pathological gamblers. Disrupted gradients were found for GABA and for NPY in healthy controls. Given that CCK is a modulator of dopamine in the reward process, the increase in CCK-8S and CCK-4 is not unexpected. The high level of GABA in pathological gamblers is in conformity with a compensatory inhibitory action on noradrenergic neurons. The CSF gradient of CCK-8S and CCK-4 in pathological male gamblers (but not healthy controls) might indicate a difference in diurnal variation. The results obtained are in line with an altered CCK and GABA function in pathological gambling. © 2006 Springer-Verlag.
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| 20. |
- Nordin, Conny, 1944-, et al.
(författare)
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CSF collection time at lumbar puncture is influenced by plasma cholesterol and triglycerides
- 2001
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Ingår i: Neuropsychobiology. - : S. Karger AG. - 0302-282X .- 1423-0224. ; 43:1, s. 19-22
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Tidskriftsartikel (refereegranskat)abstract
- It is a fairly well-known fact that the CSF collection time (tapping time) at lumbar puncture may influence CSF levels of monoamine compounds (e.g. the serotonin metabolite 5-hydroxyindoleacetic acid, 5-HIAA) and some neuropeptides. Since serum levels of cholesterol and triglycerides and low CSF levels of 5-HIAA have been linked to violent behaviour and impulsivity, we investigated retrospectively whether serum cholesterol and triglycerides affect CSF collection time. The series consists of 14 healthy males lumbar punctured at the L4-5 level. We found that both serum cholesterol and serum triglycerides influenced the CSF collection time for 12 ml of CSF (R = 0.77, p = 0.0067). There was no correlation between cholesterol in serum and CSF, nor between cholesterol in the CSF and collection time. However, we accidentally found a correlation between cholesterol in the CSF and age. The proposed hypothesis tries to explain why cholesterol- and triglyceride-rich lipoprotein particles modify the CSF collection time and influence endothelial function with a subsequent effect on CSF production and/or intraspinal pressure. Thus, it may be of interest to pay attention to serum cholesterol and triglycerides, their effect on CSF collection time and, in the next step, their putative impact on levels of various compounds in the CSF. Copyright ⌐ 2001 S. Karger AG, Basel.
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| 21. |
- Nordin, Conny, 1944-, et al.
(författare)
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CSF monoamine patterns in pathological gamblers and healthy controls
- 2006
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Ingår i: Journal of Psychiatric Research. - : Elsevier BV. - 0022-3956 .- 1879-1379. ; 40:5, s. 454-459
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Tidskriftsartikel (refereegranskat)abstract
- Previous reports on compounds in the cerebrospinal fluid (CSF) of pathological gamblers have focused on disturbed NA, DA and 5-HT function in the central nervous system. We have analysed precursors, transmitters and transmitter metabolites in 3 × 6 ml of CSF obtained from one female and 11 male pathological gamblers and 11 healthy male controls lumbar punctured at the L4-5 level after 8 h of fasting without preceding strict bedrest. Pathological gamblers displayed lower CSF levels of tryptophan and 5-HT while the opposite was the case for 5-HIAA, tyrosine, DA, HVA, DOPAC and HMPG. In contrast to previous studies, the NA level did not differ between pathological gamblers and healthy controls. A disrupted CSF gradient was noted for tryptophan, 5-HT, DA, HVA, DOPAC, NA and HMPG, but only in pathological gamblers. A disrupted gradient was found for 5-HIAA in both pathological gamblers and healthy controls. The results are in line with the presence of altered indoleamine and cathecholamine function in pathological gamblers as well as an altered CSF transport from the brain to the lumbar compartment in such gamblers. © 2005 Elsevier Ltd. All rights reserved.
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| 22. |
- Nordin, Conny, 1944-, et al.
(författare)
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CSF taurine level is influenced by plasma cholesterol and the CYP2D6 phenotype
- 2003
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Ingår i: European Neuropsychopharmacology. - 0924-977X .- 1873-7862. ; 13:5, s. 333-335
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Tidskriftsartikel (refereegranskat)abstract
- Eight healthy male volunteers, lumbar-punctured before and during simvastatin treatment, were phenotyped for CYP2D6 analysis of the debrisoquine metabolic ratio (the ratio between the urinary recovery of debrisoquine and its 4-hydroxy metabolite) after a single oral dose of debrisoquine. The mean cerebrospinal fluid concentrations of cholesterol and taurine did not differ before and during treatment. During (but not before) treatment taurine in the CSF correlated with the debrisoquine metabolic ratio (r=-0.93, P=0.0007) Our results might indicate an influence of CYP2D6 on the level of taurine in the CSF that was secondary to the change in plasma cholesterol. ⌐ 2003 Elsevier B.V./ECNP. All rights reserved.
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| 23. |
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| 24. |
- Nordin, Conny, 1944-
(författare)
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Kapitel 14 - Psykiska störningar.
- 2001. - 1
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Ingår i: Trafikmedicin. - Linköping : Linköpings universitet. - 9188250466 ; , s. 156-160
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 25. |
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| 26. |
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| 27. |
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| 28. |
- Nordin, Conny, 1944-, et al.
(författare)
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Temperament and character in pathological gambling
- 2007
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Ingår i: Journal of Gambling Studies. - : Springer Science and Business Media LLC. - 1050-5350 .- 1573-3602. ; 23:2, s. 113-120
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Tidskriftsartikel (refereegranskat)abstract
- Objective: We have studied temperament and character in pathological gambling (PG). Methods: Thirty-eight DSM-IV verified pathological gamblers (31 males and 7 females, mean age 35.4 ± 10.4 years) were tested with Cloninger's Temperament and Character Inventory (TCI). Matched controls were chosen from the normal population. Results: Pathological gamblers scored higher on the temperament factors novelty seeking (NS) and harm avoidance (HA). The most pronounced difference was found in the character factor self-directedness (SD). The pathological gamblers differed from controls in cooperativeness and self-transcendence. A personality disorder was found in 29% of the pathological gamblers 84% of whom scored either low on SD and high on impulsivity or had a more dishonest behaviour. Two-thirds of pathological gamblers showed immature character with or without high HA in temperament. The other third showed normal-character extravagant behaviour (86%), high impulsivity (36%) and less responsibility (50%) being the most common personality traits. Conclusion: HA and NS might be trait-like characteristics in PG. © 2007 Springer Science+Business Media, Inc.
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| 29. |
- Phol, Annika, et al.
(författare)
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Clinical and biochemical observations during treatment of depression with electroacupuncture : A pilot study
- 2002
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Ingår i: Human Psychopharmacology. - : Wiley. - 0885-6222 .- 1099-1077. ; 17:7, s. 345-348
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Tidskriftsartikel (refereegranskat)abstract
- Six patients suffering from major depression were treated with electroacupuncture. During 4 weeks of treatment, the total CPRS-S-A score decreased from 23.8 to 13.4 (p = 0.0095). A decrease of neuropeptide Y (NPY) in plasma during the first 2 weeks of treatment was noted in five of the patients, all being women (p = 0.0431). The decrease was negatively correlated with age (rs = -0.29, p = 0.046). The results are in line with a putative antidepressive effect of electroacupuncture, along with an influence on NPY in plasma. Copyright ⌐ 2002 John Wiley & Sons, Ltd.
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| 30. |
- Pohl, Annika, et al.
(författare)
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Body mass index influences plasma concentration of neuropeptide Y in healthy female volunteers : A pilot study
- 2003
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Ingår i: Gynecological Endocrinology. - : Informa UK Limited. - 0951-3590 .- 1473-0766. ; 17:5, s. 409-412
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Tidskriftsartikel (refereegranskat)abstract
- Neuropeptide Y (NPY) was measured in plasma obtained from healthy female volunteers twice in the natural menstrual cycle or the hormonal cycle caused by oral contraceptives about 2 weeks apart. The ratio between the NPY plasma concentration in the second sample and the first sample was influenced negatively by body mass index (BMI). There were no differences in NPY plasma concentrations on comparing the first and second samples. Age and the use or non-use of oral contraceptives did not exert any influence. BMI might be a confounding factor when determining NPY in the plasma of healthy women.
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| 31. |
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| 32. |
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| 33. |
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| 34. |
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| 35. |
- Wikström, Sverre, 1978-, et al.
(författare)
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Tactile stimulus and neurohormonal response : A pilot study
- 2003
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Ingår i: International Journal of Neuroscience. - : Informa UK Limited. - 0020-7454 .- 1563-5279 .- 1543-5245. ; 113:6, s. 787-793
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Tidskriftsartikel (refereegranskat)abstract
- The effects of tactile stimuli on plasma oxytocin and neuropeptide Y (NPY) were investigated in 21 volunteers exposed to massage. Blood samples for basal values were drawn immediately before and immediately after finishing the massage. A third sample was drawn after 60 min of restricted rest. On focusing on the difference between oxytocin concentrations before and immediately after massage, we found a sex difference. An opposite sex difference was found for NPY. The results imply that there might be sex-related difference in neurohormonal response to tactile stimuli such as in massage, and the results contradict those of previously reported animal experiments.
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