Publications by authors named "Gassel A"

Background/aims: Mini-laparoscopy has, since its first description in 1998, proven to be a valuable diagnostic method in liver diseases. We re-evaluated the significance of mini-laparoscopy for diagnosis and staging of liver disease and primary liver and bile duct cancer.

Patients And Methods: 1,788 consecutive patients who received a diagnostic mini-laparoscopy between 10/1998 and 06/2011 were included in this retrospective cohort study.

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The pharmacokinetics of deracoxib in seven healthy cats were determined following a single oral (1 mg/kg) dose. Minimal variability among cats was found for all estimated pharmacokinetic variables. Terminal half-life (t(1/2)) was 7.

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Objective: To compare the effectiveness of preoperative PO and SC administration of buprenorphine and meloxicam for prevention of postoperative pain-associated behaviors in cats undergoing ovariohysterectomy.

Design: Randomized controlled study.

Animals: 51 female cats (4 to 60 months old; weight range, 1.

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Background: Heat shock protein 27 (hsp27) is a molecular chaperone which supports cells to keep their homeostasis under stressful conditions. It is associated with resistance to chemotherapeutics, radiation and hyperthermia. The aim of this retrospective study was to investigate the prognostic value of hsp27 for patients with node-negative breast cancer.

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A new HPLC procedure for the determination of deracoxib, a selective cyclooxygenase-2 inhibitor, has been developed and validated. Following a liquid-liquid extraction using isopropyl alcohol and chloroform, samples were separated by isocratic reversed-phase HPLC on an Atlantis C18 column and quantified using UV detection at 252 nm. The mobile phase was a mixture of 10 mM potassium phosphate (pH 4.

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PTEN: and beta-catenin mutations constitute the predominant genetic alterations in endometrioid carcinomas of the endometrium. PTEN encodes a dual-specificity phosphatase with lipid phosphatase and protein tyrosine phosphatase activities that regulate both apoptosis and interactions with the extracellular matrix. Recent studies have associated PTEN mutations with tumorigenesis of prostate carcinoma via the Wnt signaling pathway, leading to nuclear beta-catenin accumulation.

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Background: Abdominal scar recurrence of endometrial carcinoma after hysterectomy has been only occasionally described and occurred mostly within 5 years after surgery. Direct tumor cell seeding in the abdominal wound at the time of operation is thought to be most likely the cause of recurrence.

Case: The patient underwent total abdominal hysterectomy for early stage endometrial carcinoma.

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A case of extranodal sinus histiocytosis with massive lymphadenopathy (ENSHML; Rosai-Dorfman disease) is reported. The patient presented with a history of intracranial tumour and exophthalmus. Clinical examination found a large mass in the left orbit and paranasal sinuses.

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Background: Nonarterialized mouse liver transplantation is a well-established model for immunologic studies on rejection and tolerance mechanisms. However, the importance of graft arterialization has-in contrast to rat liver transplantation-not been thoroughly examined in the mouse model. The aim of the current study was to investigate the impact of arterial reconstruction on long-term graft survival, histologic alterations, ischemic liver damage, and early immunologic activation pathways.

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Background: Heat-shock proteins (hsp) are involved in processes which are associated with tumour neogenesis and the biological behaviour of tumours. The object of our study was to investigate the significance of the 70 kDa hsp for the outcome of women with node-negative breast cancer.

Patients And Methods: Paraffin sections of 191 patients with operated breast cancer and a median follow-up of 177 months were stained immunohistochemically with a commercially available antibody against hsp70.

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A case of a well differentiated endometrioid adenocarcinoma of the ovary in combination with an epidermoid cyst is described. A typical epidermoid cyst without skin appendages could be observed. In direct neighborhood, there was a typical endometrioid carcinoma with some foci of squamous metaplasia.

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Renal cell carcinoma has a complex and variable natural history. We report a case underlining this who presented concomitant renal cell carcinoma metastasis with pituitary and adrenocortical adenomas. A 62-year-old woman presented with visual loss.

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Purpose: Type II cells and the surfactant system have been proposed to play a central role in pathogenesis of radiation pneumonitis. We analyzed the secretory function and proliferation parameters of alveolar type II cells in the early (until 24 h) and late phase (1-5 weeks) after irradiation (RT) in vitro and in vivo.

Methods And Materials: Type II cells were isolated from rats according to the method of Dobbs.

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Cystic meningiomas are uncommon tumors that are easily confused with metastatic or glial tumors with cystic components. We report on our experience of intraoperative findings and management of peritumoral cyst wall and cyst fluid in cystic meningiomas. We reviewed all the meningiomas operated on at our department in a 3 1/2-year period (January 1998 to June 2001).

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Glomus organs are small arteriovenous anastomoses chiefly responsible for thermoregulation of the distal portion of the extremities. Glomangiomas are benign tumors of these bodies. They occur preferentially in the fingers and toes, but some case reports describe primary glomangiomas in the respiratory or gastrointestinal tract and genitals.

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Glomus organs are small arteriovenous anastomoses that are chiefly responsible for thermoregulation of the distal portion of the extremities. Glomangiomas are benign tumors of these bodies. Glomangiomas occur preferentially in the fingers and toes, but some case reports have described primary glomangiomas in the respiratory or gastrointestinal tract and the genitals.

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Glomus organs are arteriovenous anastomoses which control the thermoregulation of the extremities. Benign tumors of these glomus organs, termed "glomangiomas", are therefore most frequently located in the fingers and toes. Case reports of primary glomangiomas in the respiratory- and gastrointestinal tracts as well as in the genital organs have been published.

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Background And Aims: We investigated the influence of donor MHC antigen expression on graft survival after parathyroid transplantation in three different strain combinations.

Methods: MHC class I and II expression on parathyroid tissue of Lewis (LEW), Dark Agouti (DA), and Wistar-Furth (WF) rats was first analysed semiquantitatively by immunohistochemistry. Additionally, five groups were transplanted: (1) LEW to LEW, (2) DA to DA, (3) LEW to DA, (4) WF to LEW, and (5) DA to LEW.

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MHC antigen expression in parathyroid tissue and its influence on graft survival after allogeneic transplantation were investigated using a heterotopic rat transplantation model. MHC class I and II expression in parathyroid tissue of Lewis (LEW), Dark Agouti (DA), and Wistar-Furth (WF) rats was analysed semi-quantitatively by using immunohistochemistry. MHC class I expression was strong in DA, moderate in WF, and weak in LEW rats parenchyma, whereas MHC class II expression was negative.

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Background: Drug-induced tolerance of rat liver allografts is well documented. We analyzed cellular events during immunosuppressive therapy on day (d) 10 and in the late phase (d 100) after transplantation to assess for characteristics in the intrahepatic leukocyte (IHL) population in the phase of tolerance.

Methods: Lewis rats served as recipients of Dark Agouti rat livers.

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