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- Koman, A, et al.
(author)
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Increased risk for tooth extraction in primary hyperparathyroidism and hypercalcemia: a population study
- 2020
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In: Clinical oral investigations. - : Springer Science and Business Media LLC. - 1436-3771 .- 1432-6981. ; 24:8, s. 2755-2761
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Journal article (peer-reviewed)abstract
- The aim of this study was to analyze dental comorbidities in untreated primary hyperparathyroidism (pHPT). Patients with pHPT subjected to parathyroidectomy (PTX) at Karolinska University Hospital, Stockholm, during 2011–2016 (n = 982) were selected from the Scandinavian Quality Register of Thyroid, Parathyroid and Adrenal surgery and compared to a general population cohort (n = 2944), matched for age and gender. Dental data was obtained from the Swedish Dental Health Registry for the 3 years prior to PTX. The incidence rate ratios (IRRs) of tooth loss by extraction, periodontal interventions, and dental visit rate were analyzed by Poisson regression models. In order to analyze the impact of disease severity, the PHPT cohort was sub-grouped based on preoperative serum levels of ionized calcium (S-Ca2+). The total number of tooth extractions, periodontal interventions, and number of visits were similar in the cohorts. PHPT patients belonging to the quartile with the highest S-Ca2+ (≥ 1.51 mmol/L) had increased risk for tooth extraction (IRR 1.85; 95% CI 1.39–2.46). Female gender independently amplified the risk (IRR 1.341, P < 0.027). This study indicates an association between pHPT and oral disorders reflected by increased tooth loss by extraction related to high S-Ca2. Increased awareness of dental comorbidity in primary hyperparathyroidism may benefit a large group of patients with a common disease through earlier detection and prevention.
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- Wallin, Anders, 1950, et al.
(author)
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Donepezil in Alzheimer's disease : What to expect after 3 years of treatment in a routine clinical setting
- 2007
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In: Dementia and Geriatric Cognitive Disorders. - Basel : S. Karger AG. - 1420-8008 .- 1421-9824. ; 23:3, s. 150-160
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Journal article (peer-reviewed)abstract
- Background/Aims: Clinical short-term trails have shown positive effects of donepezil treatment in patients with Alzheimer's disease. The outcome of continuous long-term treatment in the routine clinical settings remains to be investigated. Methods: The Swedish Alzheimer Treatment Study (SATS) is a descriptive, prospective, longitudinal, multicentre study. Four hundred and thirty-five outpatients with the clinical diagnosis of Alzheimer's disease, received treatment with donepezil. Patients were assessed with Mini-Mental State Examination (MMSE), Alzheimer's Disease Assessment Scale-cognitive subscale (ADAS-cog), global rating (CIBIC) and Instrumental Activities of Daily Living (IADL) at baseline and every 6 months for a total period of 3 years. Results: The mean MMSE change from baseline was positive for more than 6 months and in subgroups of patients for 12 months. After 3 years of treatment the mean change from baseline in MMSE-score was 3.8 points (95% CI, 3.0-4.7) and the ADAS-cog rise was 8.2 points (95% CI, 6.4-10.1). This is better than expected in untreated historical cohorts, and better than the ADAS-cog rise calculated by the Stern equation (15.6 points, 95% CI, 14.5-16.6). After 3 years with 38% of the patients remaining, 30% of the them were unchanged or improved in the global assessment. Conclusion: Three-year donepezil treatment showed a positive global and cognitive outcome in the routine clinical setting. Copyright © 2007 S. Karger AG.
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- Castan, A., et al.
(author)
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Oxygen enriched air supply in Escherichia coli processes : production of biomass and recombinant human growth hormone
- 2002
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In: Enzyme and microbial technology. - 0141-0229 .- 1879-0909. ; 30:7, s. 847-854
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Journal article (peer-reviewed)abstract
- In order to investigate the impact of high oxygen and carbon dioxide concentrations, Escherichia coli was grown in batch cultivations where the air supply was enriched with either oxygen or carbon dioxide. The effect of elevated concentrations of oxygen and carbon dioxide on stochiometric and kinetic constants was studied this way. The maximum growth rate was significantly reduced, the production of acetic acid and the biomass yield coefficient on glucose increased in cultures with carbon dioxide enriched air, compared to reference cultivations and cultivations with oxygen enriched air. The application of oxygen enriched air was studied in high cell density cultivations of Escherichia coli. Two production processes were chosen to investigate the impact of oxygen enrichment. Biomass concentration, specific growth rate, yield coefficient, respiration, mixed acid fermentation products and the product yield and quality for the recombinant product were investigated. First, a process for the production of biomass was investigated. Exponential growth could proceed for a longer time and higher growth rates could be maintained with oxygen enriched air supply. However, a higher specific oxygen consumption rate per glucose was measured after the start of the oxygen enrichment, indicating higher maintenance and consequently the growth rate and yield coefficient decreased drastically in the end of the process. Second, a process for the production of recombinant human growth hormone (rhGH) was investigated. Although the glucose feed rate and all medium components were doubled, the amount of produced biomass could only be increased by 77% when oxygen enriched air (40% oxygen) supply was applied. This was due to a decreased yield coefficient of biomass per glucose. The total amount of produced product was decreased by almost 50% compared to the control, although less proteolytically degraded variants were produced.
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- Nasman, A, et al.
(author)
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Prognostic Markers and Driver Genes and Options for Targeted Therapy in Human-Papillomavirus-Positive Tonsillar and Base-of-Tongue Squamous Cell Carcinoma
- 2021
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In: Viruses. - : MDPI AG. - 1999-4915. ; 13:5
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Journal article (peer-reviewed)abstract
- The incidence of Human-papillomavirus-positive (HPV+) tonsillar and base-of-tongue squamous cell carcinoma (TSCC and BOTSCC, respectively) is increasing epidemically, but they have better prognosis than equivalent HPV-negative (HPV−) cancers, with roughly 80% vs. 50% 3-year disease-free survival, respectively. The majority of HPV+ TSCC and BOTSCC patients therefore most likely do not require the intensified chemoradiotherapy given today to head and neck cancer patients and would with de-escalated therapy avoid several severe side effects. Moreover, for those with poor prognosis, survival has not improved, so better-tailored alternatives are urgently needed. In line with refined personalized medicine, recent studies have focused on identifying predictive markers and driver cancer genes useful for better stratifying patient treatment as well as for targeted therapy. This review presents some of these endeavors and briefly describes some recent experimental progress and some clinical trials with targeted therapy.
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- Nordstrom, M, et al.
(author)
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Elevated antibody levels to Epstein-Barr virus antigens in patients with hairy cell leukemia compared to controls in relation to exposure to pesticides, organic solvents, animals, and exhausts
- 1999
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In: Oncology Research. - 0965-0407 .- 1555-3906. ; 11:11-12, s. 539-544
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Journal article (peer-reviewed)abstract
- Epstein-Barr virus (EBV) is a B-lymphotropic human herpes virus infecting B-cells, which has been associated with lymphoid malignancies, above all non-Hodgkin lymphomas (NHL. Severe immunosuppression is the best recognized risk factor for NHL, Many factors in the environment that have been described as risk factors for NHL cause measurable changes in immune functions. Hairy cell leukemia (HCL) is a rare, indolent non-Hodgkin lymphoma, originating from B-lymphocytes, This was a case-control study including 111 male cases with HCL and 400 controls. In a subgroup of 57 cases and 65 controls analysis of antibodies to EBV early antigen, viral capsid antigen, and EBNA-1, measured as P107, was performed. In this study, we confirm other studies describing elevated levels of antibodies to the EBV early antigen (EA) in patients with HCL compared to controls. We found only minor differences in the levels of antibodies to the viral capsid antigen (VCA) and EBNA-1, measured as P107. We found a positive association of a titer to EA IgG greater than or equal to 40 (OR 4.1: CI 1.9-9.5). The ORs were further elevated when subjects with high levels of EA IgG and exposed to environmental agents such as organic solvents, certain pesticides, impregnating agents, animals, and exhausts were compared to those subjects with low levels that were not exposed. Antibody reactivity against the EBV EBNA 1-alanine-glycine repeat (P107 IgG) above the median gave an increased OR for HCL, which further increased in subjects exposed to organic solvents, certain pesticides, impregnating agents, animals, and exhausts. However, the numbers of exposed cases and controls were small in some of the calculations.
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- Zupancic, M, et al.
(author)
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Adenoid Cystic Carcinoma (AdCC): A Clinical Survey of a Large Patient Cohort
- 2023
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In: Cancers. - : MDPI AG. - 2072-6694. ; 15:5
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Journal article (peer-reviewed)abstract
- Adenoid cystic carcinoma (AdCC), a rare heterogenous disease, presents diagnostic, prognostic, and therapeutic challenges. To obtain more knowledge, we conducted a retrospective study on a cohort of 155 patients diagnosed in 2000–2022 with AdCC of the head and neck in Stockholm and investigated several clinical parameters in correlation to treatment and prognosis in the 142/155 patients treated with curative intent. The strongest favourable prognostic factors were early disease stage (stage I and II) as compared to late disease (stage III and IV) and major salivary gland subsite as compared to other subsites, with the best prognosis in the parotid gland, irrespective of the stage of the disease. Notably, in contrast to some studies, a significant correlation to survival was not found for perineural invasion or radical surgery. However, similar to others, we confirmed that other common prognostic factors, e.g., smoking, age, and gender, did not correlate to survival and should not be used for prognostication of AdCC of the head and neck. To conclude, in AdCC early disease stage, major salivary gland subsite and multimodal treatment were the strongest favourable prognostic factors, while this was not the case for age, gender and smoking nor perineural invasion and radical surgery.
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