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Träfflista för sökning "hsv:(MEDICIN OCH HÄLSOVETENSKAP) hsv:(Klinisk medicin) hsv:(Hematologi) "

Sökning: hsv:(MEDICIN OCH HÄLSOVETENSKAP) hsv:(Klinisk medicin) hsv:(Hematologi)

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1.
  • Lundin, Anna-Carin (författare)
  • Tendinosis in Trigger Finger
  • 2017
  • Doktorsavhandling (övrigt vetenskapligt)abstract
    • Trigger finger is one of the most common hand conditions, with a prevalence of almost 3%. The aetiology remains unclear even though many causes have been suggested. The prevailing paradigm is that the pathogenesis of trigger finger is ascribed to primary changes in the first fibrous condensation of the tendon sheath (A1-pulley). Several studies have investigated pathology in the pulley, but few have investigated the tendon. The general aim of this thesis was to find out if there is pathology in the trigger finger tendon and to define it.We first looked at trigger finger tendon biopsies in a light microscope, and found that they were histologically different from healthy tendons. They showed signs of micro-ruptures, collagen degradation, increased amounts of ground substance, both hyper- and hypo-cellular areas, round active cell nuclei and absence of inflammatory cells, all similar to tendinosis. The histological picture was further assessed by using a scoring system for Achilles tendinosis. The trigger finger tendons scored high, suggesting a similar histopathology.Next, we performed a quantitative real-time polymerase chain reaction (qPCR) on trigger finger tendons. We assessed the mRNA expression of 10 genes, which have been described to be differently expressed in Achilles tendinosis (collagen 1 and 3, versican, decorin, biglycan, aggrecan, MMP-2, MMP-3, ADAMTS-5, and TIMP-3). The overall expression pattern agreed with previous studies on Achilles tendinosis, suggesting that the cellular function in trigger finger tendons is disturbed in a similar way as in Achilles tendinosis.Recent experimental and observational research has suggested potential side effects of statin treatment on tendons, but firm evidence was lacking. We performed an epidemiological study on two large population-based cohorts. Statin use was found to increase the risk of both trigger finger and tendinosis in the shoulder and Achilles tendons, especially among men. This suggests a similar pathology in trigger finger and tendinosis.We have also studied the time to treatment effect after a single injection of glucocorticoid in trigger finger. Our results suggest that 60-80% of patients can expect resolution of the triggering within 14 days, and half of them within seven days. This result allows correct information to be given to the patient and proper planning of follow-ups.In conclusion, the pathology in trigger finger tendons is similar to tendinosis in other tendons.
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2.
  • Slind Olsen, Renate (författare)
  • Circulating and genetic factors in colorectal cancer : Potential factors for establishing prognosis?
  • 2017
  • Doktorsavhandling (övrigt vetenskapligt)abstract
    • Colorectal cancer (CRC) is defined as a cancer appearing in the colon or in the rectum. In Sweden, ~ 6300 individuals were diagnosed with the disease in 2014 and ~ 2550 individuals diagnosed with CRC die each year due to their cancer. Surgery is the main treatment option of CRC and a survival rate of ~ 10 % is estimated if distant metastases have developed. It is therefore of importance to find factors that may be useful together with tumour, node, metastasis (TNM) stage to establish early CRC diagnosis, prognosis and follow-up of CRC patients. The aim of this thesis was to study the possible association of CD93, PLA2G4C, PDGF-D and inflammatory cytokines with CRC disease progression.In a prospective study approach CD93 and PLA2G4C single nucleotide polymorphisms (SNPs) were of potential importance in CRC prognosis.The T/T genotype of CD93 was associated with an increased CD93 expression in CRC tissue. Further, CRC patients carrying this genotype were associated with disseminated CRC at diagnosis and a lower recurrence-free survival after surgery. The A allele of a SNP of PLA2G4C was a stronger predictor for CRC-specific mortality than the conventional risk factors used in the clinic for selection of TNM stage II patients for adjuvant treatment. This indicates that the T/T genotype of CD93 and the A allele of PLA2G4C may be potential genetic factors related to disease severity and spread. Furthermore, they distinguish CRC patients that may benefit from a more comprehensive follow-up and adjuvant treatment.To study the putative involvement of PDGF-D in CRC the effects of PDGF-D signalling was studied in vitro. PDGF-D signalling altered the expression of genes of importance in CRC carcinogenesis and proliferation which was blocked by imatinib, a tyrosine kinase inhibitor. This indicates that PDGF-D signalling may be an important pathway in CRC progression and a potential target in CRC treatment.The analysis of various inflammatory cytokines in plasma at diagnosis showed an association between high levels and increased total- or CRC-specific mortality two years after surgery. High levels of CCL1 and CCL24 was the only cytokines strongly correlated with a worse CRC prognosis after statistical adjustments and may be of interest for further evaluation.In conclusion, this thesis presents circulating and genetic factors such as CD93, PLA2G4C, PDGF-D, CCL1 and CCL24 that may be of importance in CRC progression and may be of clinical value together with TNM stage in establishing prognosis.
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3.
  • Hedbrant, Johan, 1959-, et al. (författare)
  • Ny mätmetod för käkmuskulaturen kan finna orsaken till tinnitus : Slutrapport Nutek 92-11904
  • 1997
  • Ingår i: Nutek 92-11904. - Stockholm : Nutek - Närings- och teknikutvecklingsverket.
  • Rapport (övrigt vetenskapligt)abstract
    • Tinnitus är en åkomma som i lindrigare eller allvarligare former drabbar 17% av västvärldens befolkning. Ca 85 000 svenskar har tinnitus på invalidiserande nivå. Förutom mänskligt lidande orsakar tinnitus samhällskostnader på ca 1.5 miljard kr årligen. Orsaken är till största delen okänd.Vissa tecken tyder på ett samband mellan tinnitus och funktionsstörning i en käkmuskel. Några olika icke–invasiva metoder för mätning av muskelstörning i M Pterygoideus Lateralis har utvärderas. Två av dessa är intressanta för fortsatta studier.Termografi användes för att diagnosticera muskelstörningar på ytligt liggande muskler. Vi såg åtskilliga varma områden på ytliga käk– och nackmuskler på de patienter som hade käkledsstörningar, samt möjligen tecken på onormal värme från M Pterygoideus Lateralis. Mätförhållandena var dock ej ideala.En metod att mäta EMG med adaptiv noise cancelling provades. EMG från en ryggmuskel, stört av en “EKG–signal” från hjärtat användes. Metoden fungerade bra. Fortsatt metodutveckling på t.ex. ryggmuskler borde göras.
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4.
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5.
  • Petridou, Eleni Th., et al. (författare)
  • In vitro fertilization and risk of childhood leukemia in Greece and Sweden
  • 2012
  • Ingår i: Pediatric Blood & Cancer. - 1545-5009 .- 1545-5017. ; 58:6, s. 930-936
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Cancer risk in children born after in vitro fertilization (IVF) remains largely unknown. We aimed to investigate risk of leukemia and lymphoma following IVF using two nationwide datasets. Methods. The hospital-based case-control study in Greece derived from the National Registry for Childhood Hematological Malignancies (1996-2008, 814 leukemia and 277 lymphoma incident cases with their 1: 1 matched controls). The Swedish casecontrol study was nested in the Swedish Medical Birth Register (MBR) (1995-2007, 520 leukemia and 71 lymphoma cases with their 5,200 and 710 matched controls) with ascertainment of incident cancer cases in the National Cancer Register. Study-specific and combined odds ratios (OR) were estimated using conditional logistic regression, with adjustment for possible risk factors. Results. Nationwide studies pointed to similar size excess risk of leukemia following IVF, but to a null association between IVF and lymphoma. The proportion of leukemia cases conceived through IVF was 3% in Greece and 2.7% in Sweden; prevalence of IVF in matched controls was 1.8% and 1.6%, respectively. In combined multivariable analyses, the increased risk of leukemia was confined to age below 3.8 years (OR 2.21; 95% confidence interval, CI: 1.27-3.85) and to acute lymphoblastic leukemia (ALL) (OR 1.77; 95% CI: 1.062.95) with no sufficient evidence of excess risk for other leukemias (OR 1.34; 95% CI: 0.38-4.69). Following IVF, OR for ALL was 2.58 (95% CI: 1.37-4.84) before age 3.8 and 4.29 (95% CI: 1.4912.37) before age 2 years. Conclusions. IVF seems to be associated with increased risk of early onset ALL in the offspring. 
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6.
  • Toporski, Jacek, et al. (författare)
  • High-dose iodine-131-metaiodobenzylguanidine with haploidentical stem cell transplantation and posttransplant immunotherapy in children with relapsed/refractory neuroblastoma.
  • 2009
  • Ingår i: Biology of Blood and Marrow Transplantation. - : Elsevier. - 1083-8791. ; 15:9, s. 1077-1085
  • Tidskriftsartikel (refereegranskat)abstract
    • We evaluated the feasibility and efficacy of using high-dose iodine-131-metaiodobenzylguanidine ((131)I-MIBG) followed by reduced-intensity conditioning (RIC) and transplantation of T cell-depleted haploidentical peripheral blood stem cells (designated haplo-SCT) to treat relapsing/refractory neuroblastoma (RRNB). Five RRNB patients were enrolled: 4 with relapse (3 after autologous SCT) and 1 with induction therapy failure. The preparative regimen included high-dose (131)I-MIBG on day -20, followed by fludarabine (Flu), thiotepa, and melphalan (Mel) from day -8 to -1. Granulocyte-colony stimulating factor (G-CSF)-mobilized, T cell-depleted haploidentical paternal stem cells were infused on day 0 together with cultured donor mesenchymal stem cells. A single dose of rituximab was given on day +1. After cessation of short immunosuppression (mycophenolate, OKT3), 4 children received donor lymphocyte infusion (DLI). (131)I-MIBG infusion and RIC were well tolerated. All patients engrafted. No primary acute graft-versus-host disease (aGVHD) was observed. Four children developed aGVHD after DLI and were successfully treated. Analysis of immunologic recovery showed fast reappearance of potentially immunocompetent natural killer (NK) and T cells, which might have acted as effector cells responsible for the graft-versus-tumor (GVT) effect. Two children are alive and well, with no evidence of disease 40 and 42 months after transplantation. One patient experienced late progression with new bone lesions (sternum) 38 months after haplo-SCT, and is being treated with local irradiation and reinstituted DLI. One patient rejected the graft, was rescued with autologous backup, and died of progressive disease 5 months after transplantation. Another child relapsed 7 months after transplantation and died 5 months later. High-dose (131)I-MIBG followed by RIC and haplo-SCT for RRNB is feasible and promising, because 2 of 5 children on that regimen achieved long-lasting remission. Further studies are needed to evaluate targeted therapy and immune-mediated tumor control in high-risk neuroblastoma.
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7.
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8.
  • Berntorp, Erik, et al. (författare)
  • Centraliserad vård grundläggande i vårdprogram för blödarsjuka
  • 1999
  • Ingår i: Läkartidningen. - : Swedish Medical Association. - 0023-7205. ; 96:15, s. 1849-1852
  • Tidskriftsartikel (refereegranskat)abstract
    • Haemophilia is a rare and potentially life-threatening disease. In Sweden, with a population of approximately 8.5 million, about 350 people suffer from the more severe forms of haemophilia or von Willebrand disease. Meticulous management is important if the patients are to be spared chronic disability and serious treatment complications. The disease is lifelong and affects psychosocial aspects of life among patients and their families. With the help of a grant from the Swedish Board of Halth and Welfare, a care programme has been designed to guarantee Swedish haemophiliacs comparable and optimal care. The programme has been drawn up by representatives of the three haemophilia centres in Sweden (at University Hospital, Malmo, Sahlgrenska University Hospital, Gothenburg, and Karolinska Hospital, Stockholm) in co-operation with the World Federation of National Haemophilia Organisations. To ensure optimal individual application of the programme, individualised management strategies and patient information leaflets have been prepared.
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9.
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10.
  • Brundin, Peik, et al. (författare)
  • Gene Expression of Estrogen Receptors in Pbmc From Patients With Puumala-Virus Infection
  • 2012
  • Ingår i: Shock. - Philadelphia : Lippincott Williams & Wilkins. - 1073-2322 .- 1540-0514. ; 37:4, s. 355-359
  • Tidskriftsartikel (refereegranskat)abstract
    • The influence of estrogen signaling on infectious diseases is not fully known. Males seem to be more susceptible to infections than females. This has also been noted for the Scandinavian form of hemorrhagic fever with renal syndrome caused by Puumala hantavirus (PUUV). To investigate the differences in estrogen receptors in relation to sex and clinical severity, 20 patients (10 males, 10 females) with confirmed PUUV infection were studied. Real-time polymerase chain reaction was performed for analyzing mRNA expression of estrogen receptor-alpha (ERV), ER beta, and ER beta 2 (ER beta cx) in peripheral blood mononuclear cells from patients and healthy age-and sex-matched blood donors. Blood chemistry and peripheral blood mononuclear cells sampling were performed during the acute and convalescent phases. None or very small amounts of ER beta were detected, and ER alpha and ER beta 2 mRNA were elevated in the patient group. The samples from the males were correlated with ER beta 2; the female samples, with ER alpha. Furthermore, the female and male samples are partly separated using multivariate statistic analysis (principal component analysis), supporting findings that clinical symptoms differ depending on sex.
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