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Träfflista för sökning "AMNE:(MEDICAL AND HEALTH SCIENCES Clinical Medicine Cancer and Oncology) srt2:(2010-2014);srt2:(2011)"

Sökning: AMNE:(MEDICAL AND HEALTH SCIENCES Clinical Medicine Cancer and Oncology) > (2010-2014) > (2011)

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61.
  • Burgu, Berk, et al. (författare)
  • Can the outcome of autoaugmentation omentocystoplasty be improved? Urodynamic, histological, and collagen content evaluation in sheep model.
  • 2011
  • Ingår i: Neurourology and urodynamics. - : Wiley. - 1520-6777 .- 0733-2467. ; 30:7, s. 1371-5
  • Tidskriftsartikel (refereegranskat)abstract
    • To compare histological and urodynamic outcome of the classical detrusorotomy with and without the aid of intravesical balloon distension. We also describe a new technique with multiple detrusor incisions instead of detrusorotomy.A total of 24 animals were included in the study. Three different techniques of autoaugmentation cystoplasty were applied to surgically reduced bladders of 14 sheep. Five sheep underwent surgical reduction of bladder capacity as control group and five sheep underwent sham operation. In Group DIB (detrusor incision with balloon), standard whole thickness incisions on bladder wall were performed and a silicon balloon was inflated intravesically postoperatively. Group DMB (detrusorotomy with balloon) and Group DM (detrusorotomy) underwent standard detrusorotomy. After measuring capacities and compliances, animals were sacrificed on 90th postoperative day. Bladders were histopathologically evaluated. Expression of vascular endothelial growth factor (VEGF), CD31, and microvessel density (MVD) was noted. Quantification of collagen subtypes was also performed.The mean capacity and compliance for Group DM and control were not significantly different and both were lower than other augmentation groups and sham. In Groups DMB and DM fibrosis was significantly increased. The VEGF expression was lower in Group DIB with respect to other augmentation groups whereas MVD was not significantly different. Measurement of total collagen and collagen subtypes revealed an increase in total collagen of groups DMB and DM when compared to other groups. Quantification of collagen subtypes demonstrated that types I and III were significantly increased in aforementioned groups.Autoaugmentation omentocystoplasty in sheep model does not result in a reliable increase in bladder capacity and compliance. Intravesical balloon inflation makes the achievement more pronounced and significantly increases the bladder capacity and compliance.
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62.
  • Burgu, Berk, et al. (författare)
  • Combining gastric and ileal segments, does it overcome segment-related complications? An experimental study on rats.
  • 2011
  • Ingår i: Urological research. - : Springer Science and Business Media LLC. - 1434-0879 .- 0300-5623. ; 39:1, s. 39-44
  • Tidskriftsartikel (refereegranskat)abstract
    • Bladder augmentation has revolutionized the care of children with neurogenic bladder but it is associated with certain short- and long-term complications. Using the combination of gastric and ileal segments to balance effects of these segments might be a solution for complications. A total of 39 female Spraque-Dawley rats randomly divided into four groups: ileocystoplasty (11), gastrocystoplasty (9), ileogastrocystoplasty (11) and control (8). Serum/urine electrolytes and pH values, and serum creatinine levels and urine mucus concentration were measured. Kruskal-Wallis non-parametric variance analysis was performed to compare the groups and p < 0.05 was accepted as significant. Metabolic alkalosis with significantly lower urine pH was observed in gastrocystoplasty group. Gastroileal group showed similar results with the ileal group in all parameters. No stone formation was detected in the sham and gastric cystoplasty groups. Metaplastic and hyperplastic changes were observed in all segments surrounding urothelium. In conclusion, combination of gastric and ileal segments does not significantly reduce the rate of metabolic impairments, stone and mucus formation. Besides it is not associated with significant improvement in histological outcome since urine is still in contact with the gastrointestinal mucosa.
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63.
  • Kaltsas, Gregory, et al. (författare)
  • Expression of connective tissue growth factor and IGF1 in normal and neoplastic gastrointestinal neuroendocrine cells and their clinico-pathological significance
  • 2011
  • Ingår i: Endocrine-Related Cancer. - Uppsala : Uppsala University. - 1351-0088 .- 1479-6821. ; 18:1, s. 61-71
  • Tidskriftsartikel (refereegranskat)abstract
    • Connective tissue growth factor (CTGF) and IGF1 are both expressed in a variety of tumours and are involved in tumourigenesis. However, information about their expression in the gastrointestinal (GI) neuroendocrine (NE) cells and tumours is mainly limited, with the exception of midgut carcinoids where abundant CTGF expression has been demonstrated. Normal mucosa specimens from stomach and ileum, as well as tumour tissue specimens from gastric NE tumours (GNETs; n=58) and midgut NETs (n=38) were included. Immunohistochemical techniques were used to investigate the possible expression of CTGF and IGF1 in GI NE cells and tumours. The latter results were correlated with various clinico-biochemical and histopathological variables. CTGF was expressed in a proportion of NE cells of the normal GI mucosa but not in enterochromaffin-like (ECL) cells, whereas IGF1 was undetectable. CTGF was absent in the foci of ECL cell hyperplasia, and in most of the poorly differentiated carcinomas, but present in some GNETs (mainly in type III ECL cell carcinoids (ECL-CCs)) and in all but one midgut NETs. CTGF correlated with tumour stage in well-differentiated GNETs and with size larger than 1  cm but only in the subgroup of type I ECL-CCs. IGF1 was detected in the foci of ECL cell hyperplasia and in all GI NETs. These findings suggest that both CTGF and IGF1 may be involved in the neoplastic transformation of GI NE cells, whereas IGF1 may play an important role even at early stage.
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67.
  • Arver, Brita, et al. (författare)
  • Bilateral Prophylactic Mastectomy in Swedish Women at High Risk of Breast Cancer: A National Survey.
  • 2011
  • Ingår i: Annals of surgery. - : Lippincott Williams and Wilkins; 1999. - 1528-1140 .- 0003-4932. ; 253:6, s. 1147-1154
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND/OBJECTIVE:: This study attempted a national inventory of all bilateral prophylactic mastectomies performed in Sweden between 1995 and 2005 in high-risk women without a previous breast malignancy. The primary aim was to investigate the breast cancer incidence after surgery. Secondary aims were to describe the preoperative risk assessment, operation techniques, complications, histopathological findings, and regional differences. METHODS:: Geneticists, oncologists and surgeons performing prophylactic breast surgery were asked to identify all women eligible for inclusion in their region. The medical records were reviewed in each region and the data were analyzed centrally. The BOADICEA risk assessment model was used to calculate the number of expected/prevented breast cancers during the follow-up period. RESULTS:: A total of 223 women operated on in 8 hospitals were identified. During a mean follow-up of 6.6 years, no primary breast cancer was observed compared with 12 expected cases. However, 1 woman succumbed 9 years post mastectomy to widespread adenocarcinoma of uncertain origin. Median age at operation was 40 years. A total of 58% were BRCA1/2 mutation carriers. All but 3 women underwent breast reconstruction, 208 with implants and 12 with autologous tissue. Four small, unifocal, invasive cancers and 4 ductal carcinoma in situ were found in the mastectomy specimens. The incidence of nonbreast related complications was low (3%). Implant loss due to infection/necrosis occurred in 21 women (10%) but a majority received a new implant later. In total, 64% of the women underwent at least 1unanticipated secondary operation. CONCLUSIONS:: Bilateral prophylactic mastectomy is safe and efficacious in reducing future breast cancer in asymptomatic women at high risk. Unanticipated reoperations are common. Given the small number of patients centralization seems justified.
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68.
  • Boldrup, Linda, et al. (författare)
  • Differences in p63 expression in SCCHN tumours of different sub-sites within the oral cavity
  • 2011
  • Ingår i: Oral Oncology. - : Elsevier. - 1368-8375 .- 1879-0593. ; 47:9, s. 861-865
  • Tidskriftsartikel (refereegranskat)abstract
    • Squamous cell carcinoma of the head and neck, SCCHN, the sixth most common cancer in the world, comprises tumours of differentanatomical sites. The overall survival is low, and there are no good prognostic or predictive markers available. The p53 homologue, p63, plays an important role in development of epithelial structures and has also been suggested to be involved in development of SCCHN. However, most studies on p63 in SCCHN have not taken into account the fact that this group of tumours is heterogeneous in terms of the particular site of origin of the cancer. Mapping and comparing p63 expression levels in tumours and corresponding clinically normal tissue in SCCHN from gingiva, tongue and tongue/floor of the mouth revealed clear differences between these regions. In normal samples from tongue and gingiva, tongue samples showed 2.5-fold higher median p63 expression and also more widespread expression compared to gingival samples. These results emphasise the importance of taking sub-site within the oral cavity into consideration in analyses of SCCHN.
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69.
  • Hedén, Lena E., et al. (författare)
  • Effect of morphine in needle procedures in children with cancer
  • 2011
  • Ingår i: European Journal of Pain. - : Wiley. - 1090-3801 .- 1532-2149. ; 15:10, s. 1056-1060
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The aim was to investigate whether children experience less fear, distress, and/or pain when they receive oral morphine vs. placebo before a needle is inserted in a subcutaneously implanted intravenous port when combined with topical anesthesia. Method: Fifty children 1-18 years of age who were treated in a pediatric oncology and hematology setting were included consecutively when undergoing routine needle insertion into an intravenous port. All children were subjected to one needle insertion following topical anesthetic (EMLA) application in this randomized, triple-blind, placebo-controlled study comparing orally administered morphine (n = 26) 0.25 mg/kg body weight with placebo (n = 24). The patients' fear, distress, and pain were reported by parents, nurses and the children themselves (if >= 7 years of age) on 0-100 mm Visual Analogue Scales. In addition, observational methods were used to measure distress and procedure pain. Results: No differences between the morphine and the placebo group were found with respect to age, weight, height, physical status, sex, weeks from diagnosis, or weeks from latest needle insertion. According to, parents, nurses, and children, oral morphine at a dose of 0.25 mg/kg body weight did not reduce fear, distress or pain compared with placebo. Conclusion: We could not reject the null hypothesis that there is no difference between the oral morphine and placebo groups assuming an effect size of 15 mm on VAS. Therefore it seems that oral morphine at 0.25 mg/kg does not give any additional reduction of fear, distress or pain compared with placebo when combined with topical anesthesia in pediatric patients undergoing subcutaneous port needle insertion, and would not be expected to be of any advantage for similar procedures such as venipuncture and venous cannulation when topical anesthesia is used.
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70.
  • Lindqvist, Ebba K., et al. (författare)
  • Personal and family history of immune-related conditions increase the risk of plasma cell disorders : a population-based study
  • 2011
  • Ingår i: Blood. - : American Society of Hematology. - 0006-4971 .- 1528-0020. ; 118:24, s. 6284-6291
  • Tidskriftsartikel (refereegranskat)abstract
    • The associations between immune-related conditions and multiple myeloma (MM) and monoclonal gammopathy of undetermined significance (MGUS) have previously been investigated with inconsistent results. In a large population-based study, we identified 19 112 patients with MM, 5403 patients with MGUS, 96 617 matched control subjects, and 262 931 first-degree relatives. We calculated odds ratios (ORs) and 95% confidence intervals (CIs) for the association of MM and MGUS with immune-related conditions by use of logistic regression. A personal history of all infections combined was associated with a significantly increased risk of MM (OR = 1.2; 95% CI, 1.1-1.3), and a personal history of all conditions in the categories infections (OR = 1.6; 95% CI, 1.5-1.7), inflammatory conditions (OR = 1.4; 95% CI, 1.2-1.5), and autoimmune diseases (OR = 2.1; 95% CI, 1.9-2.4) was associated with a significantly increased risk of MGUS. Several specific immune-related conditions elevated the risk of MM and/or MGUS. A family history of autoimmune disease was associated with a significantly increased risk of MGUS (OR = 1.1; 95% CI, 1.00-1.2), but not MM. Our findings suggest that immune-related conditions and/or their treatment are of importance in the etiology of MGUS and possibly MM. The association of both personal and family history of autoimmune disease with MGUS indicates the potential for shared susceptibility for these conditions. (Blood. 2011; 118(24): 6284-6291)
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