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Article ; Online: Expression of p53, bcl-2, and ki-67 Proteins in the Inﬂammatory Regenerative and Dysplastic Epithelial Lesions of Flat Colonic Mucosa

Svjetlana Radović / Zora Vukobrat-Bijedić / Ivan Selak / Mirsad Babić

Bosnian Journal of Basic Medical Sciences, Vol 6, Iss

2008 Volume 1

Abstract: The aim of the study was to define the distribution of p53, bcl-2 and Ki-67 proteins in the inflammatory-regenerative and dysplastic lesionsof the colon mucosa. The relationship between the presentation of p53, bcl-2 and Ki-67 proteins and the intensity ... ...

Abstract	The aim of the study was to define the distribution of p53, bcl-2 and Ki-67 proteins in the inflammatory-regenerative and dysplastic lesionsof the colon mucosa. The relationship between the presentation of p53, bcl-2 and Ki-67 proteins and the intensity of the inflammatory-regenerative and dysplastic lesions in the colon flat mucosa was investigated as well. Biopsy specimens from 270 patients were examined: 74 were classified as inflammatory-regenerative and 196 as dysplastic lesions (108 mild, 58 moderate, and 30 severe dysplasia). The expression of all three proteins was assessed on the basis of location, quantity, and intensity of immunostaining, by counting antigen positive cells, in comparison with normal mucosa and adenocarcinoma. p53 protein appears only in sporadic cases (6.6%) of severe dysplasia. Bcl-2 expression appears significantly (p<0.005) more often in cases of mild dysplasia (61.1%) compared to inflammatory-regenerative mucosa (14.8%). In cases of mild dysplasia, bcl-2 positive cells were spreading from the lower third to the middle third of the crypts. Bcl-2 expression was maintained through the stadiums of moderate and severe dysplasia (75.8%), where antigen positive cells were found all along the crypts. A significant increase (p<0.005) in the expression of nuclear protein Ki-67 was noticed in the stadiums of moderate (labelling index =26.3) compared to mild dysplasia (labelling index=16.7), and severe (labelling index=36.7) compared to moderate dysplasia, where the zone of cellular proliferation was widen along the whole crypt length. In the process of the development of epithelial dysplasia in the flat mucosa of colon a degree of the gene p53 alteration is low and appears only in sporadic cases of severe dysplasia. Mutation of the bcl-2 gene is involved in the genesis of the lesion but not in its progression to carcinoma. Increased expressionof Ki-67 protein speaks in favour of an increased cellular proliferation which, together with the above mentioned mechanisms, is involved in the ...
Keywords	p63 ; bcl-2 ; Ki-67 ; epithelia dysplasia ; flat mucosa of the colon ; Medicine (General) ; R5-920
Subject code	610
Language	English
Publishing date	2008-02-01T00:00:00Z
Publisher	Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Stature Estimation for Bosnian Male Population

Nermin Sarajlić / Zdenko Cihlarž / Eva Elvira Klonowski / Ivan Selak

Bosnian Journal of Basic Medical Sciences, Vol 6, Iss

2006 Volume 1

Abstract: Since 1996, the Trotter and Gleser formulae to determine the stature of recovered missing persons in Bosnia and Herzegovina have been used. The purpose of this study is to develop appropriate stature estimation formulae from the length of the femur, ... ...

Abstract	Since 1996, the Trotter and Gleser formulae to determine the stature of recovered missing persons in Bosnia and Herzegovina have been used. The purpose of this study is to develop appropriate stature estimation formulae from the length of the femur, tibia and fibula for use in the Bosnia and Herzegovina to help in identifications of the victims. Research was undertaken on 50 male cadavers, of individuals who died between the ages of 23 to 54 years. The cadaver length was measured and the length of the long bones was obtained from X-ray photographs. The length of the cadavers of the individuals who died after age of 45 years was corrected according to Giles' table. This study established that using Trotter and Gleser's formulae underestimate stature of tall people in the current population of Bosnia and Herzegovina. Smallest standard error of estimate is observed in the formula that uses the sum of the length of femur and fibula. There are no statistically significant differences between the length of the bones from the left and right sides of the body. Therefore, formulae developed from the average length of bone pairs are recommended for use.
Keywords	forensic science ; forensic anthropology ; stature estimation ; Bosnian population ; Medicine (General) ; R5-920
Subject code	360
Language	English
Publishing date	2006-02-01T00:00:00Z
Publisher	Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Immunohistochemical Expression of Tissue Inhibitor of Metalloproteinase-1 (Timp-1) in Invasive Breast Carcinoma

Suada Kuskunović / Svjetlana Radović / Mirsad Dorić / Ajna Hukić / Mirsad Babić / Ivana Tomić / Ivan Selak

Bosnian Journal of Basic Medical Sciences, Vol 9, Iss

2009 Volume 2

Abstract: Tissue inhibitor of metalloproteinase-1 (TIMP-1) is a natural inhibitor of matrix metalloproteinas-es (MMPs). Aim of this study was to assess the immunohistochemical expression of TIMP-1 in invasive breast carcinomas, and to examine its association with ... ...

Abstract	Tissue inhibitor of metalloproteinase-1 (TIMP-1) is a natural inhibitor of matrix metalloproteinas-es (MMPs). Aim of this study was to assess the immunohistochemical expression of TIMP-1 in invasive breast carcinomas, and to examine its association with classical clinico-pathological parameters, oestrogen receptor, progesterone receptor and Her-2/neu protein expression. Immuno-histochemistry was used to determine the expression of TIMP-1 on 38 paraffin-embedded breast tissue specimens - 18 with invasive ductal carcinoma, 10 with invasive lobular carcinoma, and 10 specimens from patients with fibrocystic breast disease. TIMP-1 protein was immunodetected in the carcinoma cells, fibroblasts and inflammatory cells of the stroma in 92,9%, 65,8%, and 65,8% of cases, respectively. TIMP-1 protein expression in carcinoma cells showed positive correlation with TIMP-1 protein expression in peritumoural fibroblasts (p=0,010). Positive peritumoural fibroblast TIMP-1 expression was associated with histological tumour type with higher frequency in ductal carcinomas (p=0,023). Negative association was found between TIMP-1 protein expression in carcinoma cells and HER-2/neu nuclear staining (p=0,005). TIMP-1 may be particularly useful as a predictive marker in breast carcinoma when evaluated along with HER-2/neu protein being a promising indicator of favourable prognosis in breast carcinoma.
Keywords	breast carcinoma ; tissue inhibitor of metalloproteinase-1 ; immunohistochemistry ; Medicine (General) ; R5-920
Subject code	616 ; 610
Language	English
Publishing date	2009-05-01T00:00:00Z
Publisher	Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Dermal Squamomelanocytic Tumor

Mirsad Dorić / Svjetlana Radović / Suada Kuskunović / Ajna Hukić / Mirsad Babić / Ivana Tomić / Ivan Selak

Bosnian Journal of Basic Medical Sciences, Vol 8, Iss

Neoplasm of Uncertain Biological Potential

2008 Volume 2

Abstract: We report a case of exceedingly rare cutaneous neoplasm with histological features of malignancy and uncertain biological potential. The nodular, darkly pigmented facial tumor with central exulceration, size 12x10x7 mm, of the skin 61-year-old man ... ...

Abstract	We report a case of exceedingly rare cutaneous neoplasm with histological features of malignancy and uncertain biological potential. The nodular, darkly pigmented facial tumor with central exulceration, size 12x10x7 mm, of the skin 61-year-old man preauricular left was completely exised. Histologically tumor consists of atypical squamous cells, which express signs of moderate to significant pleomorphism, mitotically active, with foci forming of parakeratotic horn cysts (“pearls”). Characteristically tumor also consists of large number of atypical melanocytes with multifocal pattern, inserted between atypical squamous cells, and which contain large amount of dark brown pigment melanin. Immunohistochemically, squamous cells stain positively with keratin (CK116), melanocytes were stained with S -100 protein, HMB 45, and vimentin, but failed to stain with CK 116. To our knowledge this is the sixth reported case in world literature. The follow-up time of four years no evidence of recurrence or metastasis, similar all reported cases, but it is too short period in estimation to guarantee a benign course. However, it appears that this group of neoplasm may have different prognosis from pure squamous carcinoma or malignant melanoma.
Keywords	squamomelanocytic ; squamous cell carcinoma ; malignant melanoma ; Medicine (General) ; R5-920
Subject code	610
Language	English
Publishing date	2008-05-01T00:00:00Z
Publisher	Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Zearalenone-induced Lymphophagocytosis (T Cell Apoptosis) on the Rat’s Thymus

Mirsad Dorić / Svjetlana Radović / Mirsad Babić / Suada Kuskunović / Ivana Tomić / Ivan Selak

Bosnian Journal of Basic Medical Sciences, Vol 7, Iss

2007 Volume 1

Abstract: The effects of nonsteroidal mycotoxin zearalenone on the lymphoid tissue of thymus in a sense of investigating the subacute toxicity Wistar-albino rats have been examined in the course of the study. We analyzed 42 rats' specimens of both gender, treated ... ...

Abstract	The effects of nonsteroidal mycotoxin zearalenone on the lymphoid tissue of thymus in a sense of investigating the subacute toxicity Wistar-albino rats have been examined in the course of the study. We analyzed 42 rats' specimens of both gender, treated with three dosage levels: 0,5; 2 and 4 mg/kg of body weight, after oral submission of the compound, and observed during three different time intervals: 10, 20 and 30 days. Microscopically was semiquantitatively determined lymphophagocytosis (apoptosis) and cortical thymic cellularity. It was percepted statistically significant growth of lymphophagocytosis compared to a dosage (p<0,01), as well as combination of dosage and interval (p<0,001), while gender had no statistically significant influence on tested parameter (p>0,05). Changes in cortical thyme cellularity were not percepted. Effects of applied doses of zearalenone on the lymphoid tissue of thymus were very mild and in correlation with estrogenicity. They are probably the result of interaction with estrogenic receptors.
Keywords	apoptosis ; lymphophagocytosis ; thymus ; zearalenone ; Medicine (General) ; R5-920
Subject code	630
Language	English
Publishing date	2007-02-01T00:00:00Z
Publisher	Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Testicular Metastasis of Gastrointestinal Stromal Tumor of the Jejunum

Mirsad Dorić / Svjetlana Radović / Mirsad Babić / Ajna Hukić / Suada Kuskunović / Ivana Tomić / Ivan Selak

Bosnian Journal of Basic Medical Sciences, Vol 7, Iss

2007 Volume 2

Abstract: Gastrointestinal stromal tumors (GIST) are neoplasm of mesenchymal origin that usually begins in cells of the wall of the gastrointestinal tract. It can be benign or malignant. In this report, we have presented a case of malignant GIST with uncommon site ...

Abstract	Gastrointestinal stromal tumors (GIST) are neoplasm of mesenchymal origin that usually begins in cells of the wall of the gastrointestinal tract. It can be benign or malignant. In this report, we have presented a case of malignant GIST with uncommon site of metastasis. This is of interest because of three reasons. Firstly, metastases to the testis are extremely rare. However, metastases to distally localized organs are not commonly associated with GIST, and finally, to our knowledge this is the first case of malignant GIST metastasis to the testis reported in the world.
Keywords	gastrointestinal stromal tumor ; metastasis ; testis ; Medicine (General) ; R5-920
Language	English
Publishing date	2007-05-01T00:00:00Z
Publisher	Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Two-criteria Dental Aging Method Applied to a Bosnian Population

Nermin Sarajlić / Zdenko Cihlarž / Eva-Elvira Klonowski / Ivan Selak / Hrvoje Brkić / Berislav Topić

Bosnian Journal of Basic Medical Sciences, Vol 6, Iss

Comparison of Formulae for Each Tooth Group Versus One Formula for all Teeth

2006 Volume 3

Abstract: The purpose of this study was to obtain age estimation formulae using the length of periodontosis, transparency of the root and root height in each tooth group for the current male population in Bosnia and Herzegovina and to compare these formulae with ... ...

Abstract	The purpose of this study was to obtain age estimation formulae using the length of periodontosis, transparency of the root and root height in each tooth group for the current male population in Bosnia and Herzegovina and to compare these formulae with Lamendin's and Prince's formulae. The research was undertaken on 847 single rooted teeth from 200 identified deceased persons, individuals who died between the ages of 23 and 85 years. Periodontosis, transparency and root height were measured according to Lamendin's procedure. All teeth were grouped in two ways: according to the tooth groups and to the age groups. The highest coefficients of correlation are obtained for maxillary canines (R = 0,731) and mandibular canines (R = 0,706) and the maxillary lateral incisors showed the lowest mean error (ME = 6,63 years). In age groups, the lowest mean error was obtained in the 40-49 years age group (ME = 5,15 years). Equations developed in this study give statistically significantly better age estimations in comparison to the original Lamendin and Prince formulae for the whole sample as well as for each tooth group, except for mandibular central incisors. Age estimation with models developed for each tooth group (except for mandibular lateral incisors) was statistically significantly better than models based on the whole sample.
Keywords	forensic age estimation ; teeth ; Lamendin and Prince method ; Bosnian population ; Medicine (General) ; R5-920
Language	English
Publishing date	2006-08-01T00:00:00Z
Publisher	Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Local Cellular Immune Response in Dysplastic Epithelial Lesions of the Flat Colonic Mucosa

Svjetlana Radović / Ivan Selak / I. Bratović

Bosnian Journal of Basic Medical Sciences, Vol 1, Iss

1998 Volume 1

Abstract: This is an immunohistochemical study of the local cellular immune response characteristic in inflammatory-regenerative and dysplastic flat colonic mucosa. The aim of this study is to determine a possible existence of the mononuclear cellular infiltration ...

Abstract	This is an immunohistochemical study of the local cellular immune response characteristic in inflammatory-regenerative and dysplastic flat colonic mucosa. The aim of this study is to determine a possible existence of the mononuclear cellular infiltration specificity which could be important for the prognosis in further development of dysplastic lesion. Biopsy specimens from 170 patients (specimens stained by hematoxylin eosin) were examined. 74 specimens showed inflammatory-regenerative changes and 96 had dysplastic changes (38 with mild dys-plasia, 28 with moderate dysplasia and 30 with severe dysplasia). Three monoclonal antibodies were used for the identification of mononuclear cells in the inflammatory cellular infiltration in the lamina propria of colonic mucosa. The inflammatory cells type and their location in respect of the epithelial cells and lesion itself were analysed and their number was determined by the semi-quantitative method. T lymphocytes were the dominant cells of local immune response in dysplastic lesions while macrophages were less present and B lymphocytes, as rare cells, were present in sporadic cases. It is notified that increase in the extent of dysplasia was followed by increase in the number of macrophages and T lymphocytes in particular. Immediate contact between macrophages and T lymphocytes in epithelial dysplasia was found in a small number of cases and was mostly independent from the intensity of dysplasia. Signs of the direct lytical effect of the mononuclear ceils on dysplastic epithelial cells were not observed in this contact. It seems that epithelial dysplasia does not provoke more significant local immune response which is the most probably a part of the chronic non-specific inflammation that has a negative influence on further development of the lesion. The conclusion is that local immune response in the dysplastic alteration of flat colonic mucosa has no importance in further prognosis of the lesion.
Keywords	immunocompetent cells ; epithelial dysplasia ; immunological techniques ; intestinal neoplasia ; Medicine (General) ; R5-920
Subject code	610
Language	English
Publishing date	1998-02-01T00:00:00Z
Publisher	Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Anti-cytokeratin 7

Svjetlana Radović / Ivan Selak / Mirsad Babić / Zora Vukobrat-Bijedić / Željka Knežević

Bosnian Journal of Basic Medical Sciences, Vol 4, Iss

a positive marker for epithelial dysplasia in flat bowel mucosa

2004 Volume 3

Abstract: The aim of this paper is to establish by immunohistochemistry the expression of keratin 7 in inflammatory-regenerative flat bowel mucosa and in different grades of epithelial dysplasia regarding the sub-units expressed in normal and carcinomatous colonic ...

Abstract	The aim of this paper is to establish by immunohistochemistry the expression of keratin 7 in inflammatory-regenerative flat bowel mucosa and in different grades of epithelial dysplasia regarding the sub-units expressed in normal and carcinomatous colonic mucosa. Biopsy specimens from 270 patients were examined: 74 were classified as inflammatory-regenerative changes and 196 as dysplastic lesions. There were 108 cases of mild dysplasia, 58 cases of moderate and 30 cases of severe dysplasia, respectively). Demonstration of location and intensity of cytokeratin 7 staining was performed by immunohistochemistry using monoclonal antibody (anti-cytokeratin 7). Findings of cytokeratin 7 in dysplastic lesions were compared with those in normal mucosa, inflammatory -regenerative mucosa and adenocarcinoma. Cytokeratin 7 is not found in normal colonic mucosa. In inflammatory-regenerative mucosa it was found in solitary cells in small number of cases. It is found in all cases of epithelial dysplasia and its expression showed no difference regarding moderate and severe dysplasia. In few cases of adenocarcinoma, cytokeratin 7 is found in traces and showed minimal staining intensity. Having in mind that cytokeratine 7 is primarily found in dysplastic lesions of the flat colonic mucosa it can be a valuable diagnostic tool in the histological interpretation of epithelial dysplasia.
Keywords	cytokeratin ; dysplasia ; colon mucosa ; Medicine (General) ; R5-920
Subject code	616 ; 610
Language	English
Publishing date	2004-08-01T00:00:00Z
Publisher	Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: The Bcl-2 protein

Nurija Bilalović / Semir Vranić / Senad Hasanagić / Hiba Basić / Aida Tatarević / Semir Bešlija / Ivan Selak

Bosnian Journal of Basic Medical Sciences, Vol 4, Iss

a prognostic indicator strongly related to ER and PR in breast cancer

2004 Volume 4

Abstract: Bcl-2, the protein product of the Bcl-2 gene, is a member of the Bcl-2 family of proteins that play a crucial role in a complex mechanism of apoptosis. It was recently proposed that bcl-2 could inhibit cancer progression. In this study, we evaluated the ... ...

Abstract	Bcl-2, the protein product of the Bcl-2 gene, is a member of the Bcl-2 family of proteins that play a crucial role in a complex mechanism of apoptosis. It was recently proposed that bcl-2 could inhibit cancer progression. In this study, we evaluated the expression patterns of Bcl-2, estrogen receptors (ER), progesterone receptors (PR) in 71 primary invasive breast carcinomas and their association with other clinicopathological parameters. Samples from 71 patients with invasive breast cancer with follow-up ranging from 4-103 months (median 57 months) were included in the study. Forty-six patients (66%) obtained a complete response, while 5 (9%) were considered non-responders during the follow up period of 103 months. Eighteen (25%) patients died, 15 (21%) from primary disease and 3 (4%) from other disease. In unvaried analysis, tumor size (<2 cm), lymph node (<4 lymph nodes), hormonal status and Bcl-2 expression are correlated with longer overall (OS) and relapse-free survival (RFS). Patients with 4 or more positive axillary lymph nodes had significantly shorter OS (p=0.01) and RFS (p=0.009). Higher expression of Bcl-2 was associated with longer OS (p=0.02) and RFS (p=0.03), and this result were independent of axillary lymph nodes and tumor size in Cox multivariate analysis.
Keywords	Medicine (General) ; R5-920
Subject code	610
Language	English
Publishing date	2004-11-01T00:00:00Z
Publisher	Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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