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Sökning: AMNE:(MEDICIN OCH HÄLSOVETENSKAP Medicinska grundvetenskaper Farmakologi och toxikologi) > Linnéuniversitetet

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1.
  • Oreland, Sadia, et al. (författare)
  • Short- and long-term consequences of different early environmental conditions on central immunoreactive oxytocin and arginine vasopressin levels in male rats
  • 2010
  • Ingår i: Neuropeptides. - : Elsevier BV. - 0143-4179 .- 1532-2785. ; 44:5, s. 391-398
  • Tidskriftsartikel (refereegranskat)abstract
    • Numerous studies have provided evidence for an important role for the neuropeptides oxytocin (OT) and arginine vasopressin (AVP) in establishment of social behaviour early in life, such as mother-pup interactions. However, there are few reports examining the consequences of early-life experiences on OT and AVP in male offspring. We have used the maternal separation (MS) model to study the effect of different early environmental conditions in rats. The purpose was to study OT and AVP in rats subjected to prolonged daily MS (360 min, MS360), short daily MS (15 min, MS15) and conventional animal facility rearing (AFR) during postnatal days 1-21. In addition, the influence of the presence or absence of littermates during MS, i.e. litter-wise (l) or individual (i) MS, was assessed. The immunoreactive (ir) peptide levels were measured in the hypothalamus, amygdala and pituitary gland of 3 and 10 weeks old male rats. Assessment in 3-week-old rats revealed that MS15 was associated with low ir OT levels in the hypothalamus and amygdala and high levels in the pituitary gland compared with the MS360 and AFR condition. In the amygdala, differences between groups were also detected in adulthood. MS studies commonly use either MS15 or AFR as a control for prolonged MS. The present results show differences in MS360 rats as compared to MS15 but not AFR rats. Consequently, comparisons between prolonged MS with either short periods of MS or AFR will generate divergent results, hence, making the outcome of MS difficult to compare between studies. Moreover, the different early environments had no effect on ir AVP levels. In conclusion, OT in the amygdala was most sensitive to MS. Besides both short- and long-term consequences, distinct effects were seen after litter and individual separation, respectively. We propose that environmentally induced alterations in OT transmission due to disrupted mother-pup interactions early in life may cause altered susceptibility to challenges later in life.
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2.
  • Ekman, Elisabet, et al. (författare)
  • Awareness among nurses about reporting of adverse drug reactions in Sweden
  • 2012
  • Ingår i: Drug, Healthcare and Patient Safety. - 1179-1365. ; 4, s. 61-66
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The purpose of this study was to investigate awareness among nurses regarding their new role as reporters of adverse drug reactions in Sweden and factors that may influence reporting by nurses.Methods: In 2007, all nurses were included in the adverse drug reaction reporting scheme in Sweden. A questionnaire was sent to 753 randomly selected nurses in September 2010.Results: Of the 453 (60%) responding nurses, 265 (58%) were aware that nurses were included in the reporting of adverse drug reactions. Sixty-one nurses (14%) stated that they had reported an adverse drug reaction. Fifteen percent (n = 70) of the respondents had received training about reporting of adverse drug reactions. Almost one third of these (n = 21, 30%) had reported an adverse drug reaction on at least one occasion. Among nurses without training, a smaller proportion (n = 40, 11%, P < 0.05) had reported an adverse drug reaction on at least one occasion. The two factors considered most important by nurses for reporting were the severity of the adverse drug reaction and if the reaction was to a newly approved drug. A majority of the nurses (n = 397, 88%) were interested in a training course in pharmacology as part of their ongoing professional development. One third (32%) of all nurses stated that one reason for not reporting a suspected adverse drug reaction was that the physician responsible did not regard the reaction necessary to report.Conclusion: We found that more than half of the study population of nurses in Sweden were aware of their new role as reporters of adverse drug reactions, but few of the responding nurses had reported an adverse drug reaction. Given that training seems to be associated with high reporting frequency, we suggest more training in pharmacovigilance for nurses.
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3.
  • Hovstadius, Bo, 1955-, et al. (författare)
  • Factors leading to excessive polypharmacy.
  • 2012
  • Ingår i: Clinics in Geriatric Medicine. - : Elsevier. - 0749-0690 .- 1879-8853. ; 28:2, s. 159-172
  • Tidskriftsartikel (refereegranskat)abstract
    • There are numerous risk factors for patients to develop excessive polypharmacy. The most prominent risk factors are associated with sociodemographics and the patients’ conditions. Risk factors associated with patient behavior, such as patient’s self medication with all types of medications, have not been observed to the same extent but might be at the same level of importance for patients developing excessive polypharmacy. Risk factors related to physicians, and the interaction between patient and physician, are studied to a much lesser extent. The few studies conducted regarding the large variation in physicians’ individual prescribing practices, in terms of polypharmacy, add another perspective to the complexity of the area. Interventions aiming to improve communication between GP and hospital specialist, to create support systems for medical reviews that include all patients’ medications, and to improve the knowledge of multiple prescribing might have the largest potential to better manage excessive polypharmacy.
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4.
  • Nordqvist, Ola, 1979-, et al. (författare)
  • A novel index to assess low energy fracture risks in patients prescribed antiepileptic drugs
  • 2021
  • Ingår i: PLOS ONE. - San Francisco : Public Library of Science. - 1932-6203. ; 16:8
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To develop an index assessing the risks of low energy fractures (LEF) in patients prescribed antiepileptic drugs (AED) by exploring five previously suggested risk factors; age, gender, AED-type, epilepsy diagnosis and BMI.Methods: In a population-based retrospective open cohort study we used real world data from the Electronic Health Register (EHR) in Region Kalmar County, Sweden. 23 209 patients prescribed AEDs at any time from January 2008 to November 2018 and 23 281 matching controls were followed from first registration in the EHR until the first documented LEF, disenrollment (or death) or until the end of the study period, whichever came first. Risks of LEF measured as hazard rate ratios in relation to the suggested risk factors and in comparison to matched controls were analyzed using Cox regression. The index was developed using a linear combination of the statistically significant variables multiplied by the corresponding regression coefficients.Results: Data from 23 209 patients prescribed AEDs and 2084 documented LEFs during a follow-up time of more than 10 years resulted in the Kalmar Epilepsy Fracture Risk Index (KEFRI). KEFRI = Age-category x (1.18) + Gender x (-0.51) + AED-type x (0.29) + Epilepsy diagnosis-category x (0.31) + BMI-category x (-0.35). All five previously suggested risk factors were confirmed. Women aged 75 years and older treated with an inducing AED against epilepsy and BMIs of 25 kg/m2 or below had 48 times higher LEF rates compared to men aged 50 years or younger, treated with a non-inducing AED for a condition other than epilepsy and BMIs above 25 kg/m2.Conclusion: The KEFRI is the first weighted multifactorial assessment tool estimating risks of LEF in patients prescribed AEDs and could serve as a feasible guide within clinical practice.
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5.
  • Woksepp, Hanna, et al. (författare)
  • High target attainment for beta-lactam antibiotics in intensive care unit patients when actual minimum inhibitory concentrations are applied
  • 2017
  • Ingår i: European Journal of Clinical Microbiology and Infectious Diseases. - Heidelberg : Springer. - 0934-9723 .- 1435-4373. ; 36:3, s. 553-563
  • Tidskriftsartikel (refereegranskat)abstract
    • Patients in the intensive care unit (ICU) are at risk for suboptimal levels of beta-lactam antibiotics, possibly leading to poor efficacy. Our aim was to investigate whether the actual minimum inhibitory concentration (MIC) compared to the more commonly used arbitrary epidemiological cut-off values (ECOFFs) would affect target attainment in ICU patients on empirical treatment with broad-spectrum beta-lactam antibiotics and to identify risk factors for not reaching target. In a prospective, multicenter study, ICU patients ae18 years old and treated with piperacillin/tazobactam, meropenem, or cefotaxime were included. Clinical and laboratory data were recorded. Serum trough antibiotic levels from three consecutive days were analyzed by liquid chromatography-mass spectrometry (LC-MS). The target was defined as the free trough concentration above the MIC (100% fT(> MIC)). MICECOFF was used as the target and, when available, the actual MIC (MICACTUAL) was applied. The median age of the patients was 70 years old, 52% (58/111) were males, and the median estimated glomerular filtration rate (eGFR) was 48.0 mL/min/1.73 m(2). The rate of patients reaching 100% fT > MICACTUAL was higher (89%, 31/35) compared to the same patients using MICECOFF (60%, p = 0.002). In total, 55% (61/111) reached 100% fT > MICECOFF. Increased renal clearance was independently associated to not reaching 100% fT > MICECOFF. On repeated sampling, > 77% of patients had stable serum drug levels around the MICECOFF. Serum concentrations of beta-lactam antibiotics vary extensively between ICU patients. The rate of patients not reaching target was markedly lower for the actual MIC than when the arbitrary MIC based on the ECOFF was used, which is important to consider in future studies.
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6.
  • Hellström, Lina, et al. (författare)
  • Impact of the Lund Integrated Medicines Management (LIMM) model on medication appropriateness and drug-related hospital revisits.
  • 2011
  • Ingår i: European Journal of Clinical Pharmacology. - : Springer Science and Business Media LLC. - 0031-6970 .- 1432-1041. ; 67:7, s. 741-752
  • Tidskriftsartikel (refereegranskat)abstract
    • PurposeTo examine the impact of systematic medication reconciliations when admitted to hospital, and medication review while in hospital, on the number of inappropriate medications and unscheduled drug-related hospital revisits in elderly patients.MethodsA prospective, controlled study in 210 patients, aged 65 years or older, who were admitted to one of three internal medicine wards at a University Hospital in Sweden. Patients received either standard care or care according to the Lund Integrated Medicines Management (LIMM) model. A multi-professional team, including a clinical pharmacist, provided medication reconciliations on admission and medication reviews during the hospital stay for the LIMM group. Blinded reviewers evaluated the appropriateness of the prescribing (using the Medication Appropriateness Index) on admission and discharge, and assessed the probability that a drug-related problem was the reason for any patient readmitted to hospital or visiting the emergency department within three months of discharge (using WHO causality criteria).ResultsThere was a greater decrease in the number of inappropriate drugs in the intervention group than in the control group for both the intention-to-treat population (51% [95% CI 43-58%] versus 39% [95% CI 30-48%], p=0.0446) and the per-protocol population (60% [95% CI 51-67%] versus 44% [95% CI 34-52 %], p=0.0106). There were 6 revisits to hospital in the intervention group which were judged as ‘possibly, probably or certainly drug-related’, compared with 12 in the control group (p=0.0469).ConclusionIn this study, medication reconciliation and reviews provided by a clinical pharmacist in a multi-professional team significantly reduced the number of inappropriate drugs and unscheduled drug-related hospital revisits for elderly patients.
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7.
  • Wanby, Pär, et al. (författare)
  • Asymmetric dimethylarginine and total homocysteine in plasma after oral methionine loading
  • 2003
  • Ingår i: Scandinavian Journal of Clinical & Laboratory Investigation. - : Informa UK Limited. - 1502-7686 .- 0036-5513. ; 63:5, s. 347-353
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Elevation of homocysteine (Hcy) and asymmetric dimethylarginine (ADMA) in plasma are believed to be involved in the pathogenesis of cardiovascular disease (CVD). In humans, oral methionine loading results in acute elevation of plasma Hcy. This is associated with impaired NO-dependent vasodilatation, a mechanism that may explain the relationship between elevated Hcy and risk of CVD. ADMA, an endogenous competitive inhibitor of NO-synthase, may be elevated in plasma of patients with CVD. It was proposed that ADMA is synthesized in a methionine-dependent reaction which also forms Hcy. In this study plasma total homocysteine (tHcy) and ADMA concentrations were measured before and after oral methionine loading of human subjects. Methods: Plasma tHcy and ADMA levels were measured in 12 healthy males (age 32-58 years) before and after oral loading with L-methionine (100 mg/kg body weight in orange juice). Results: At noon, 4 h after methionine loading, tHcy and ADMA levels (35.4 +/- 10.9 and 0.80 +/- 0.13 mumol/L, mean +/-SD) were significantly higher than the corresponding values obtained at noon the day before (15.6 +/- 7.4 and 0.63 +/- 0.10 mumol/L, both p < 0.001). Noon values 4 h after methionine loading were also significantly higher than values obtained immediately before the methionine load (13.7 &PLUSMN; 5.9 and 0.66 &PLUSMN; 0.10 μmol/L, both p < 0.001). Reinvestigation of 8 of 12 subjects showed that at 4 and 8 h after compared with levels immediately before methionine loading there was a significant increase in tHcy (28.4 +/- 10.2 and 33.45 +/- 11.1 vs. 10.8 +/- 3.3 mumol/L, both p < 0.001). However, the corresponding ADMA levels did not increase (0.73 &PLUSMN; 0.17 and 0.76 &PLUSMN; 0.22 vs. 0.70 &PLUSMN; 0.10 μmol/L, both not significant). Conclusions: No clear evidence was found to support the supposition that methionine-induced hyperhomocysteinaemia may be accompanied by elevated levels of ADMA, an endogenous competitive NO-synthase inhibitor that may represent an alternative pathogenic mechanism for homocysteine-associated impairment of endothelial NO-dependent functions.
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8.
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9.
  • Lindström, Kjell, 1946-, et al. (författare)
  • Can selective serotonin inhibitor drugs in elderly patients in nursing homes be reduced?
  • 2007
  • Ingår i: Scandinavian Journal of Primary Health Care. - London : Informa Healthcare. - 0281-3432 .- 1502-7724. ; 25:1, s. 3-8
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To investigate whether treatment with selective serotonin reuptake inhibitors (SSRIs) could be withdrawn for elderly residents who had been on treatment for at least one year and to evaluate a method for systematic drug review. DESIGN: Open, prospective, interventional study. SETTING: Four counties in Sweden. SUBJECTS: Elderly residents at 19 nursing homes, with ongoing treatment with SSRIs for more than one year. MAIN OUTCOME MEASURES: Clinical evaluation, registration of drugs used and rating with Montgomery-Asberg Depression Rating Scale (MADRS). A semi-structured telephone interview with 15 participating physicians and 19 nurses. RESULTS: About one-third of all 822 residents in the nursing homes had ongoing antidepressant treatment, predominantly with SSRIs; 75% of them had been treated with SSRIs for at least one year and 119 (60%) of these were considered eligible for the study. The intervention was judged successful in 52% of these residents of whom 88% had a MADRS rating of less than 20 points. The GPs and the nurses experienced the method as practicable. CONCLUSIONS: Withdrawal of SSRI treatment was successful in the majority of cases. The MADRS may be a valuable addition to clinical evaluation when deciding whether to end or continue SSRI treatment.
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