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Träfflista för sökning "WFRF:(Hultman Christina M) srt2:(2005-2009)"

Sökning: WFRF:(Hultman Christina M) > (2005-2009)

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1.
  • Purcell, Shaun M., et al. (författare)
  • Common polygenic variation contributes to risk of schizophrenia and bipolar disorder
  • 2009
  • Ingår i: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 460:7256, s. 748-752
  • Tidskriftsartikel (refereegranskat)abstract
    • Schizophrenia is a severe mental disorder with a lifetime risk of about 1%, characterized by hallucinations, delusions and cognitive deficits, with heritability estimated at up to 80%(1,2). We performed a genome-wide association study of 3,322 European individuals with schizophrenia and 3,587 controls. Here we show, using two analytic approaches, the extent to which common genetic variation underlies the risk of schizophrenia. First, we implicate the major histocompatibility complex. Second, we provide molecular genetic evidence for a substantial polygenic component to the risk of schizophrenia involving thousands of common alleles of very small effect. We show that this component also contributes to the risk of bipolar disorder, but not to several non-psychiatric diseases.
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  • Bahmanyar, S., et al. (författare)
  • Risk of suicide among operated and non-operated patients hospitalised for peptic ulcers
  • 2009
  • Ingår i: Journal of Epidemiology and Community Health. - : BMJ. - 0143-005X .- 1470-2738. ; 63:12, s. 1016-1021
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Some small studies have reported high risk of suicide after surgical treatment for peptic ulcer. The aim of the present study was to explore the risk of suicide in hospitalised gastric ulcer and duodenal ulcer patients separately among operated and non-operated cohorts. Methods: Retrospective cohorts of 163 579 non-operated patients with gastric ulcer or duodenal ulcer and 28 112 patients with surgical treatment for ulcer, recorded in the Swedish Inpatient Register since 1965, were followed from the first hospitalisation, or operation for the surgery cohort, until death, any cancer, emigration, or 31 December 2003. Standardised mortality ratios (SMRs) were calculated, and Poisson regression produced adjusted relative risk estimates among operated and non-operated patients. Results: Non-operated patients hospitalised for peptic ulcer showed a 70% excess risk of suicide (SMR 1.7, 95% CI 1.6 to 1.9) and those who underwent operation had a 60% increased risk (SMR 1.6, 95% CI 1.4 to 1.8). The risk of suicide was very high during the first year after hospitalisation (SMR 4.0, 95% CI 3.4 to 4.7) and more marked among women, patients under 70 and patients hospitalised without complications of ulcer. Both gastric ulcer and duodenal ulcer patients had high risk of suicide completion. Conclusion: Hospitalised patients with gastric ulcer or duodenal ulcer have an increased risk of suicide regardless of surgical treatment. These patients, especially women, are at very high risk during the first year after first hospitalisation/operation. The evaluation and management of suicidal thoughts in patients in medical settings should be further considered.
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4.
  • Bergh Johannesson, Kerstin, 1949-, et al. (författare)
  • Impact of Exposure to Trauma on Posttraumatic Stress Disorder Symptomatology in Swedish Tourist Tsunami Survivors
  • 2009
  • Ingår i: Journal of Nervous and Mental Disease. - 0022-3018 .- 1539-736X. ; 197:5, s. 316-323
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim was to examine long-term mental health and posttraumatic stress symptomatology in a Swedish tourist population after exposure to the 2004 Southeast Asian tsunami. Data from 4822 returned questionnaires 14 months after the disaster were analyzed. Respondents were categorized into 3 subgroups: (1) danger-to-life exposure group (having been caught or chased by the waves), (2) nondanger-to-life exposure group (exposed to other disaster-related stressors), and (3) low exposure group. Main outcome measures were General Health Questionnaire-12 and Impact of Event Scale-22-Revised. Danger-to-life exposure was an important factor in causing more severe posttraumatic stress symptoms and in affecting mental health. Female gender, single status, and former trauma experiences were associated with greater distress. Other factors related to more severe symptoms were loss of relatives, physical injuries, viewing many dead bodies, experiencing life threat, and showing signs of cognitive confusion. Disaster exposure has a substantial impact on survivors, which stresses the need for long-lasting support.
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5.
  • Bergh Johannesson, Kerstin, et al. (författare)
  • The effect of Traumatic Bereavement on Tsunami-Exposed Survivors
  • 2009
  • Ingår i: Journal of Traumatic Stress. - : Wiley. - 0894-9867 .- 1573-6598. ; 22:6, s. 497-504
  • Tidskriftsartikel (refereegranskat)abstract
    • Fourteen months after the 2004 tsunami, mental health outcome was assessed in 187 bereaved relatives, 308 bereaved friends, and in 3,020 nonbereaved Swedish survivors. Of the bereaved relatives, 41% reported posttraumatic stress reactions and 62% reported impaired general mental health. Having been caught or chased by the tsunami in combination with bereavement was associated with increased posttraumatic stress reactions. Complicated grief reactions among relatives were almost as frequent as posttraumatic stress reactions. The highest levels of psychological distress were found among those who had lost children. Traumatic bereavement, in combination with exposure to life danger, is probably a risk factor for mental health sequelae after a natural disaster.
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6.
  • Buchmayer, Susanne, et al. (författare)
  • Can Association Between Preterm Birth and Autism be Explained by Maternal or Neonatal Morbidity?
  • 2009
  • Ingår i: Pediatrics. - : American Academy of Pediatrics (AAP). - 0031-4005 .- 1098-4275. ; 124:5, s. E817-E825
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: We examined whether an association between preterm birth and risk of autistic disorders could be explained by pregnancy complications or neonatal morbidity. METHODS: This Swedish, population-based, case-control study included 1216 case subjects with autistic disorders who were born between 1987 and 2002 and 6080 control subjects who were matched with respect to gender, birth year, and birth hospital. We assessed associations between gestational age and autistic disorders and adjusted for maternal, birth, and neonatal characteristics. Conditional logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS: Compared with infants born at term, the unadjusted ORs for autistic disorders among very and moderately preterm infants were 2.05 [95% CI: 1.26-3.34] and 1.55 [95% CI: 1.22-1.96], respectively. When we controlled for maternal, pregnancy, and birth characteristics, ORs were reduced to 1.48 [95% CI: 0.77-2.84] and 1.33 [95% CI: 0.98-1.81], respectively. When we also controlled for neonatal complications, ORs were 0.98 [95% CI: 0.45-2.16] and 1.25 [95% CI: 0.90-1.75], respectively. Reductions in risks of autistic disorders related to preterm birth were primarily attributable to preeclampsia, small-for-gestational age birth, congenital malformations, low Apgar scores at 5 minutes, and intracranial bleeding, cerebral edema, or seizures in the neonatal period. Neonatal hypoglycemia, respiratory distress, and neonatal jaundice were associated with increased risk of autistic disorders for term but not preterm infants. CONCLUSION: The increased risk of autistic disorders related to preterm birth is mediated primarily by prenatal and neonatal complications that occur more commonly among preterm infants.
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7.
  • Ekerfelt, Christina, 1957-, et al. (författare)
  • Mercury exposure as a model for deviation of cytokine responses in experimental Lyme arthritis : HgCl2 treatment decreases T helper cell type 1-like responses and arthritis severity but delays eradication of Borrelia burgdorferi in C3H/HeN mice
  • 2007
  • Ingår i: Clinical and Experimental Immunology. - : Oxford University Press (OUP). - 0009-9104 .- 1365-2249. ; 150:1, s. 189-197
  • Tidskriftsartikel (refereegranskat)abstract
    • Lyme borreliosis is a complex infection, where some individuals develop so-called ‘chronic borreliosis’. The pathogenetic mechanisms are unknown, but the type of immune response is probably important for healing. A strong T helper cell type 1 (Th1)-like response has been suggested as crucial for eradication of Borrelia and for avoiding development of chronic disease. Many studies aimed at altering the Th1/Th2 balance in Lyme arthritis employed mice deficient in cytokine genes, but the outcome has not been clear-cut, due possibly to the high redundancy of cytokines. This study aimed at studying the importance of the Th1/Th2 balance in murine Borrelia arthritis by using the Th2-deviating effect of subtoxic doses of inorganic mercury. Ninety-eight C3H/HeN mice were divided into four groups: Borrelia-infected (Bb), Borrelia-infected exposed to HgCl2 (BbHg), controls exposed to HgCl2 alone and normal controls. Mice were killed on days 3, 16, 44 and 65 post-Borrelia inoculation. Arthritis severity was evaluated by histology, spirochaetal load determined by Borrelia culture, IgG2a- and IgE-levels analysed by enzyme-linked immunosorbemt assay (ELISA) and cytokine-secreting cells detected by enzyme-linked immunospot (ELISPOT). BbHg mice showed less severe histological arthritis, but delayed eradication of spirochaetes compared to Bb mice, associated with increased levels of IgE (Th2-induced) and decreased levels of IgG2a (Th1-induced), consistent with a Th2-deviation. Both the numbers of Th1 and Th2 cytokine-secreting cells were reduced in BbHg mice, possibly explained by the fact that numbers of cytokine-secreting cells do not correlate with cytokine concentration. In conclusion, this study supports the hypothesis that a Th1-like response is required for optimal eradication of Borrelia.
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8.
  • Harlow, Bernard L, et al. (författare)
  • Incidence of hospitalization for postpartum psychotic and bipolar episodes in women with and without prior pregnancy or prenatal psychiatric hospitalizations
  • 2007
  • Ingår i: Archives of General Psychiatry. - : American Medical Association (AMA). - 0003-990X .- 1538-3636. ; 64:1, s. 42-48
  • Tidskriftsartikel (refereegranskat)abstract
    • CONTEXT: Postpartum psychosis occurs in 1 to 2 cases per 1000 live births. Most studies have not distinguished postpartum psychosis from bipolar disorder or the proportion of the incidence attributable to prepregnancy psychiatric morbidity. OBJECTIVE: To determine the incidence of postpartum psychosis and bipolar disorder attributable to previous psychiatric hospitalization. DESIGN: Population-based study using linked registry data to determine postpartum onset of psychotic and bipolar episodes within 90 days after the first birth, by women with and without prepregnancy or prenatal psychiatric hospitalization. We assessed the type, number, and recency of previous hospitalizations on the incidence of hospitalization for postpartum psychotic and bipolar episodes. SETTING: Nationwide Swedish Hospital Discharge and Medical Birth registers. PATIENTS: Swedish women delivering a first live infant between January 1, 1987, and December 31, 2001. MAIN OUTCOME MEASURES: Postpartum hospitalization for psychosis or bipolar disorder. RESULTS: The cumulative incidences for postpartum psychotic and bipolar episodes (adjusted for age at first birth) were 0.07% and 0.03%, respectively. The incidence of psychiatric hospitalizations for postpartum psychotic or bipolar episodes among women without previous psychiatric hospitalizations was 0.04% and 0.01% of first births, respectively; for women with any psychiatric hospitalization before delivery, the incidence was 9.24% and 4.48%, respectively. For postpartum psychotic and bipolar episodes, the risk increased significantly with the recency of prepregnancy hospitalizations, number of previous hospitalizations, and length of most recent hospitalization. More than 40% of women hospitalized during the prenatal period for a bipolar or a psychotic condition were hospitalized again during the postpartum period. Approximately 90% of all postpartum psychotic and bipolar episodes occurred within the first 4 weeks after delivery. CONCLUSIONS: Almost 10% of women hospitalized for psychiatric morbidity before delivery develop postpartum psychosis after their first birth. This underscores the need for obstetricians to assess history of psychiatric symptoms and, with pediatric and psychiatric colleagues, to optimize the treatment of mothers with psychiatric diagnoses through childbirth.
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9.
  • Hultman, Christina M, et al. (författare)
  • Ethical Issues in Cancer Register Follow-Up of Hormone Treatment in Adolescence
  • 2009
  • Ingår i: Public Health Ethics. - : Oxford University Press (OUP). - 1754-9973 .- 1754-9981. ; 2:1, s. 30-36
  • Tidskriftsartikel (refereegranskat)abstract
    • Since the 1970s, estrogen have sometimes been used in adolescent girls to reduce very tall adult expected height.Worries about long-term effects have led to a proposal to link treatment data with cancer registers. How shouldone deal with informed consent for such a study?We designed a qualitative study with semi-structured telephoneinterviews. From 1200 women who were to be followed-up in cancer registers, we randomly selected 22 women.Major themes were a wish to be involved and a positive attitude to the proposed register research. The womendid not express worry after reading the study protocol, but did convey considerable frustration that this researchhad not been initiated earlier. Active consent was not seen as crucial. We found strong interest in a high participationrate and a concern over missing data. The selection of information and consent or the decision to goahead without consent in register follow-up is a delicate balancing act. Study participants wish to be contacted,but acknowledge the primary goal of answering important questions. Our study provides support for safeguardingprivacy in epidemiological linkage studies and in follow-up of medical treatment without losing the scientificvalue by requesting for informed consent.
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