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- Fredriksson, I, et al.
(författare)
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Risk factors for local recurrence after breast-conserving surgery
- 2003
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Ingår i: British Journal of Surgery. - : Oxford University Press (OUP). - 0007-1323 .- 1365-2168. ; 90:9, s. 1093-1102
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Tidskriftsartikel (refereegranskat)abstract
- Background: It is not clear whether risk factors for local recurrence after breast-conserving surgery differ in women having surgery for in situ or invasive cancer. Furthermore, the Nottingham Prognostic Index (NPI) and Nottingham Histological Grade (NHG) have been little studied as determinants of local recurrence risk. Method: In a case-control study (491 cases and 1098 controls) nested within a cohort of 7502 women who had surgery for in situ or invasive cancer of the breast, patient characteristics, tumour characteristics and treatment-related variables were evaluated as risk factors for local recurrence. Results: Multivariate conditional logistic regression analyses showed that age below 40 years, tumour multicentricity and an unclear or unknown surgical margin were significant risk factors for local recurrence. Radiotherapy to the breast and adjuvant hormone therapy were protective. Cancer in situ was not associated with a higher risk of local recurrence than invasive cancer (odds ratio 1.0, 95 per cent confidence interval 0.8 to 1.3). NHG and NPI were not helpful in determining risk of local recurrence. Conclusion: Margin status, age, tumour multicentricity, and use of radiotherapy and adjuvant hormone therapy were important determinants of risk of local recurrence. With the exception of surgical margin, variables related to the quality of surgical management did not predict risk of local recurrence.
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| 2. |
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| 3. |
- Jönsson, Daniel, et al.
(författare)
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Differential effects of estrogen on DNA synthesis in human periodontal ligament and breast cancer cells.
- 2005
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Ingår i: Journal of Periodontal Research. - : Wiley. - 1600-0765 .- 0022-3484. ; 40:5, s. 401-406
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: It is important to clarify the biological function of the female sex hormones estrogen and progesterone in periodontal ligament cells, as these hormones may affect periodontal health. We have previously shown that human periodontal ligament cells express estrogen receptor beta (ERbeta) but not ERalpha, whereas human breast cancer cells (MCF7) express both ERalpha and ERbeta. Data on progesterone receptor (PgR) expression in human periodontal ligament cells have not been reported. OBJECTIVES: Determine PgR expression in human periodontal ligament and MCF7 cells and to investigate how estrogen affects DNA and collagen synthesis in these two cell types showing different pattern of expression for ERalpha and beta. METHODS: Periodontal ligament cells were obtained from the periodontal ligament of premolars extracted for orthodontic reasons and MCF7 cells from the American Type Culture Collection (ATCC). PgR expression was determined by immunocytochemistry. DNA and collagen synthesis was determined by [(3)H]thymidine and L-[(3)H]proline incorporation, respectively. RESULTS: PgR immunoreactivity was observed in nuclei of MCF7 but not periodontal ligament cells. Treatment with estrogen (17beta-estradiol, E(2)) at physiological concentrations for 24 h stimulated DNA synthesis by more than two times in MCF7 cells, whereas there was no effect on periodontal ligament cell DNA synthesis. The ER blocker ICI 182780 fully reversed the stimulatory effect of E(2). Not only short-term (24 h) but also long-term (5 days) treatment with E(2) lacked effect on DNA synthesis in periodontal ligament cells. Neither periodontal ligament cell viability nor collagen synthesis was affected by E(2) treatment. Identical results were observed in periodontal ligament cells from male and female subjects. CONCLUSIONS: Human MCF7 but not periodontal ligament cells express PgR, suggesting that progesterone via PgR affects MCF7 but not periodontal ligament cells. Further, estrogen stimulates breast cancer MCF7 cell proliferation, whereas it has no effect on proliferation of periodontal ligament cells, probably reflecting cell type specific ER expression pattern in these two cell types.
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| 4. |
- Svanberg, Katarina, et al.
(författare)
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Clinical multi-colour fluorescence imaging of malignant tumours - Initial experience
- 1998
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Ingår i: Acta Radiologica. - : SAGE Publications. - 1600-0455 .- 0284-1851. ; 39:1, s. 2-9
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: The detection of malignant tumours relies on a variety of diagnostic procedures including X-ray images and, for hollow organs, endoscopy. The purpose of this study was to present a new technique for non-invasive tumour detection based on tissue fluorescence imaging. Material and Methods: A clinically adapted multi-colour fluorescence system was employed in the real-time imaging of malignant rumours of the skin, breast, head and neck region, and urinary bladder. Tumour detection was based on the contrast displayed in fluorescence between normal and malignant tissue, related to the selective uptake of tumour-marking agents, such as haematoporphyrin derivative (HPD) and Famine levulinic acid (ALA), and natural chromophore differences between various tissues. In order to demarcate basal cell carcinomas of the skin, ALA was applied topically 4-6 h before the fluorescence investigation. For urinary bladder tumour visualisation (transitional cell carcinoma of different stages including carcinoma in situ), ALA was instilled into the bladder 1-2 h prior to the study. Malignant and premalignant lesions in the head and neck region were imaged after i.v. injection of HPD (Photofrin). Finally, the extent of in situ and invasive carcinomas of the breast was investigated in surgically excised specimens from patients that received a low-dose injection of HPD 24 h prior to the study. The tumour imaging system was coupled to an endoscope. Fluorescence light emission from the tissue surface was induced with 100-ns-long optical pulses at 390 nm, generated from a frequency-doubled alexandrite laser. With the use of special image-splitting optics, the tumour fluorescence, intensified in a micro-channel plate, was imaged in 3 selected wavelength bands. These 3 images were processed together to form a new optimised-contrast image of the tumour. This image, updated at a rate of about 3 frames/s, was mixed with a normal colour video image of the tissue. Results: A clear demarcation from normal surrounding tissue was found during in vivo measurements of superficial bladder carcinoma, basal cell carcinoma of the skin, and leukoplakia with dysplasia of the lip, and in in vitro investigations of resected breast cancer. Conclusions: The initial clinical experience of using multi-colour fluorescence imaging has shown that the technique has the potential to reveal malignant tumour tissue, including non-invasive early carcinoma and also precancerous tissue. Further investigations are needed to fully develop the method.
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| 6. |
- Andersson, C., et al.
(författare)
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Immunocytochemical demonstration of oestrogen receptor beta in blood vessels of the female rat
- 2001
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Ingår i: Journal of Endocrinology. - : Bioscientifica. - 0022-0795 .- 1479-6805. ; 169:2, s. 241-247
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Tidskriftsartikel (refereegranskat)abstract
- The role of oestrogen receptor (ER) beta in vascular function remains unclear. With the use of a specific ERbeta antibody we have now, using immunocytochemistry, visualized ERbeta in different parts of the vascular tree. In about 70% of medial smooth muscle cells of female rat aorta, tail artery and uterine artery, nuclear immunoreactivity to ERbeta was observed. In these vessels endothelial cells also expressed ERbeta. Vascular expression of the ERalpha subtype was lower than that of ERbeta. In aorta and tail artery, no immunoreactivity towards ERalpha was observed, while in uterine vessels occasional medial smooth muscle and endothelial cells expressed this ER subtype. ERbeta and alpha expression in uterine vessels was independent of the stage of the oestrous cycle, suggesting that variations in uterine blood flow occurring during the cycle are independent of ER density. The regional distribution of ERalpha, as determined by immunocytochemistry, was supported by measurements of ERalpha levels by enzyme immunoassay. In the uterine artery, the level of ERalpha was several times higher (P<0.001) than that of aorta and tail artery (10.1+/-1.7 fmol/mg protein in the uterine artery vs 3.3+/-1.0 and 0.5+/-0.5 fmol/mg protein in aorta and tail artery respectively). Thus, a prominent nuclear expression of ERbeta was observed in the vascular wall of several parts of the vascular tree, while ERalpha predominantly was expressed in uterine vessels, suggesting that ERbeta and alpha may have different roles in vascular function.
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| 8. |
- Ekdahl, S., et al.
(författare)
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Family skills training in dialectical behaviour therapy : The experience of the significant others
- 2016
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Ingår i: European psychiatry. - : Elsevier. - 0924-9338 .- 1778-3585. ; 33:S1, s. S210-S210
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- IntroductionBorderline personality disorder (BPD) is a severe psychiatric health problem with reputation of being difficult to deal with and to treat. Significant others (SOs) of patients with BPD show higher levels of psychological distress compared with the general population. Strengthening the coping strategies of SOs plays an important role in the recovery of the patient. Support and education for SOs is important, both for SOs themselves and for the patients recovery.ObjectivesResearch around support and education for SOs is of great importance not only for SOs and patients, but also for psychiatric staff, in order to offer help and support, for the whole family.AimThe aim was to describe significant others’ experiences of dialectical behaviour therapy-family skills training (DBT-FST), their life situation before and after DBT-FST, and measurement of their levels of anxiety and depressive symptoms.MethodsThe study had a descriptive mixed method design. Data were collected with free text questionnaires (n = 44), group interviews (n = 53) and the HAD scale (n = 52) and analysed by qualitative content analysis and descriptive and inferential statistics.ResultsThe results show that life before DBT-FST was a struggle. DBT-FST gave hope for the future and provided strategies, helpful in daily life. For the subgroup without symptoms of anxiety and depression before DBT-FST, anxiety increased significantly. For the subgroup with symptoms of anxiety and depression the symptoms decreased significantly. This indicates, despite increased anxiety for one group, that DBT-FST is a beneficial intervention and most beneficial for those with the highest anxiety and depressive symptoms.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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| 10. |
- Jóhannsson, O T, et al.
(författare)
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Tumour biological features of BRCA1-induced breast and ovarian cancer
- 1997
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Ingår i: European Journal of Cancer. - 0959-8049. ; 33:3, s. 362-371
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Tidskriftsartikel (refereegranskat)abstract
- BRCA1 mutations, although implicated in disease predisposition in a major part of the hereditary breast cancer population, do not seem to be crucially involved in tumorigenesis of sporadic breast and ovarian cancers. This suggests that tumours arising in BRCA1 mutation carriers may differ from BRCA1 negative hereditary and sporadic cancer in genetic and biological features, as well as in clinical behaviour. Prior to BRCA1 analysis, 79 breast and 19 ovarian tumours from 57 breast and breast-ovarian cancer families, and 170 tumours from a comparison group of stage II breast cancers were studied with regard to histopathological features; immunohistochemistry [c-erbB-2, p53, oestrogen receptor (ER) and progesterone receptor (PR)], DNA flow cytometry and S-phase fraction. BRCA1 mutations were found in 40 breast and 15 ovarian tumours. The BRCA1 positive breast tumours were significantly more often of ductal type, histological grade III and manifested a heavy lymphocyte infiltration. Additionally, as compared to BRCA1 negative tumours, the BRCA1 positive tumours were significantly more often ER, PgR and c-erbB-2 negative. Furthermore, they were significantly more often DNA non-diploid, as well as being characterised by higher S-phase fraction values. These results suggest that BRCA1-induced breast cancers may manifest distinct tumour biological features of clinical importance.
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