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Träfflista för sökning "WFRF:(Zätterström Ulf) "

Sökning: WFRF:(Zätterström Ulf)

  • Resultat 1-5 av 5
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1.
  • Axéll, Tony, et al. (författare)
  • Oral changes caused by tobacco free snuff
  • 2012
  • Ingår i: Orofacial Medicin. - : Svensk förening för orofacial medicin (SOM). - 2000-9070. ; 2:2, s. 28-31
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • En 62-årig man remitterades för undersökning och behandling av en förändring i munslemhinnan innanför överläppen och som orsakats av påsförpackad tobaksfri snusprodukt (ONICO®, Swedish Match). Såväl den kliniska som den histopatologiska bilden var identisk med den man finner vid förändringar orsakade av tobaksbaserade påsförpackade snusprodukter. Patienten ombads att under en treveckorsperiod ändra applikation av snuset från vänster till höger sida. Efter dessa tre veckor hade förändringen helt försvunnit på vänster sida och en ny liknande den ursprungliga uppstått på höger sida.
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2.
  • Axéll, Tony, et al. (författare)
  • Tobaksfritt snus kan ge skador på munslemhinnan
  • 2009
  • Ingår i: Tandläkartidningen. - 0039-6982. ; 101:3, s. 56-57
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • Tobaksfritt snus kan leda till förändringar i munslemhinnan som är nästan identiska med de skador som orsakas av tobaksinnehållande snus, visar observationer vid specialisttandvårdskliniken i Halmstad.
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3.
  • Brun, Eva, et al. (författare)
  • Prognostic value of histopathological response to radiotherapy and microvessel density in oral squamous cell carcinomas
  • 2001
  • Ingår i: Acta Oncologica. - : Informa UK Limited. - 1651-226X .- 0284-186X. ; 40:4, s. 491-496
  • Tidskriftsartikel (refereegranskat)abstract
    • The prognostic value of histopathological response to preoperative radiotherapy (50 Gy) in radically resected oral carcinomas was studied in 39 consecutive patients. Microvessel density (MVD) was evaluated for relation to radioresponse and outcome. Resected tumour tissue was examined histopathologically and response to radiotherapy was scored according to induced morphological changes. Pretreatment biopsies were stained with antibodies to von Willebrand factor to evaluate MVD in hot-spot regions, in stromal tissue and in tumour epithelial tissue. Histopathological response to radiotherapy was highly prognostic of local failures and survival (p = 0.002), though microscopic surgical radicality was obtained. In good responders to preoperative radiotherapy, the 5-year survival rate was 68% compared with 24% in poor responders. In 12 patients with local recurrence after radical surgery, 11 had poor histopathological radiotherapy responses. In univariate analysis, a high MVD score in tumour epithelium was associated with poor clinical outcome but MVD did not correlate with histopathological radiotherapy response.
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4.
  • Zätterström, Ulf, et al. (författare)
  • Cervical metastasis from Spitz nevus of the buccal mucosa
  • 2008
  • Ingår i: Melanoma research. - 0960-8931 .- 1473-5636. ; 18:1, s. 36-39
  • Tidskriftsartikel (refereegranskat)abstract
    • A 23-year-old woman was presented with a prolonged history of a small lump in the buccal mucosa. A local excision was performed. The morphology diagnosed a Spitz nevus and she underwent supplementary excision of scar tissue. Two years later a submandibular lump appeared on the ipsilateral side of the neck. Cytology from fine needle aspiration indicated spread of a melanocytic tumor and she underwent a modified supraomohyiod neck dissection. One of the lymph nodes showed an inclusion of cells in the deep layers with epitheloid and spindle cells in a pattern similar to that of the primary oral lesion. The finding suggests a mechanical spread of melanocytes from the Spitz nevus to the regional lymph node. After more than 3 years of follow-up there is no further manifestation of disease. It is believed that this may be an example of how a Spitz tumor, although inherently benign, can spread along lymphatics in a pseudometastatic fashion. To our knowledge this is the first report of an oral Spitz melanoma with metastatic behavior.
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5.
  • Zätterström, Ulf K, et al. (författare)
  • Comparison of BrdUrd and [3H]TdR incorporation to estimate cell proliferation, cell loss, and potential doubling time in tumor xenografts
  • 1992
  • Ingår i: Cytometry. - : Wiley. - 0196-4763 .- 1097-0320. ; 13:8, s. 872-879
  • Tidskriftsartikel (refereegranskat)abstract
    • In this study, two different methods of estimating cell proliferation were compared: cell loss and potential growth rate of xenografted head and neck cancer grown in nude mice based on the detection of DNA incorporation of bromodeoxyuridine (BrdUrd) in one method, and [3H]thymidine ([3H]TdR) in the other. The 21-d-old xenografts were labelled in vivo, either with BrdUrd or [3H]TdR and excised at intervals during 65.5 h. In tumors containing BrdUrd, the percent labelling was measured in mid-S and mid-G1 phase windows of cytograms from bivariate DNA flow cytometry (FCM). In [3H]TdR-labelled tumors, the percent labelled mitoses (PLM) was determined by light microscopy evaluation of autoradiographs. With a computer program based on a theoretical model, the percent labelling versus time after injection was used to analyze cell cycle time, cell loss, tumor growth fraction, and potential doubling time. The values calculated from DNA incorporation with BrdUrd agreed well with those obtained from labelling with [3H]TdR, i.e., cell cycle time 2.3 vs. 2.4 d, and growth fraction 67 vs. 70%. The estimated potential doubling time was 3.1 d and cell loss factor 40% by both methods. Flow cytometry analysis of BrdUrd-labelling is considerably faster than the evaluation of [3H]TdR-labelling, and the present results provide further support for the BrdUrd labelling method as a promising alternative to the PLM method in cell cycle studies designed to evaluate the relevance of cell proliferative properties in relation to biological behavior in xenografted head and neck cancer.
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