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Knowledge and Behavior of Women on Cervical Cancer in the Northern Region of Cameroon
Pages 125-130

Armel Herve Nwabo Kamdje, Georges Kalgong, Paul Takam Kamga, Richard Simo Tagne, Jeremie Mbo Amvene and Charlette Nangue
DOI:
http://dx.doi.org/10.6000/1927-7229.2017.06.03.1

Published: 31 August 2017


Abstract: Background: Cervical cancer is a major cause of women death worldwide. The reduction of the mortality and morbidity of this pathology depends on the early detection based on powerful suitable screening methods, that will lead to optimal treatment strategies. However in some rural region of developing countries, it is very difficult to get access to standard screening methods, alternative screening methods, cheaper and easy to handle are then useful.

Objective: The aim of this work was to test the sensitivity and specificity of VIA (Visual inspection with acetic acid) and VILI (Visual inspection with lugol iodine) as a diagnostic test of cervical cancer compared to the Pap Smear, evaluating the feasibility in health formation in the North Cameroon region, of implementing epidemiological surveillance of cervical cancer based on early diagnosis using the VIA-VILI association

Method: 309 women age 20 to 62 years were recruited in this study, 307 were included in the statistical analyzes. Each woman was screened for cervical cancer by a conventional Smear and visual inspection with acetic acid 5% and the lugol solution.

Results: We found in our study a prevalence of precancerous lesions of cervix at 12.70%. The risks factors of cervical cancer identified are age, matrimonial status, age of first sexual intercourse and parity. The association of VIA and VILI showed a sensitivity, specificity, positive and negative predictive value respectively about 93.58%; 97.01%; 82.01%, 99.04%.

Conclusion: Compared to PAP Smear, VIA or VILI could be used as an alternative screening methods for cervical cancer in developing countries, where it is difficult to access to more accurate test such as colposcopy and biopsy.

Keywords: Sensitivity, specificity, diagnosis, VIA-VILI, cervical cancer.
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Association between Molecular Subtypes and Survival in Patients with Breast Cancer
Pages 135-141

Mehmet Fuat Eren, Ayfer Ay Eren, Birsen Yücel, Seher Bahar, Ahmet Cinkaya, Rayna K. Matsuno and Nuran Beşe
DOI:
http://dx.doi.org/10.6000/1927-7229.2017.06.03.3

Published: 31 August 2017


Abstract: Background: Aim of this study is to classify intrinsic subtypes and evaluate the differences in clinical/pathological characteristics and survival outcomes among the molecular types.

Patients and Methods: Breast cancer subtypes were classified according to the 2013 St. Gallen Consensus. Five molecular subtypes were determined, Luminal A, Luminal B-like HER2 negative, Luminal B-like HER2 positive, HER2 positive, and triple negative. Data was obtained from the records of patients with invasive breast cancer retrospectively. The differences in clinical/pathological parameters, overall survival and disease-free survival among the molecular subtypes were analyzed. The Kaplan-Meier method, log-rank test and Cox regression tests were used to compare groups.

Results: The median follow-up period is 48 months. The Luminal B-HER2 negative was the most prevalent type (26.6%). Patient demographics, tumor characteristics and survival data were analyzed. The Luminal A and Luminal B-HER2 negative subtypes had significantly higher overall survival and disease-free survival rates. Multivariate Cox analysis revealed that tumor stage, more than 3 positive axillary lymph node involvement, and breast cancer subtype as significant factors for overall survival and disease-free survival (p<0.05). Triple Negative subtype had a higher relative hazard of local recurrence and distant metastasis (HR=2.69, 95% CI=1.47; 4.95).

Conclusions: Breast cancer subtype has significant impact on overall survival and disease-free survival rates. While Luminal A and luminal B HER2 negative subtypes have better outcome, triple negative and HER2- subtypes remain poor.

Keywords: Breast cancer, molecular subtypes, radiotherapy, survival.
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Differences between 66 Chemical Element Contents in Normal and Cancerous Prostate
Pages 37-56
Vladimir Zaichick
DOI:
https://doi.org/10.6000/1927-7229.2017.06.02.1
Published: 25 April 2017


Abstract: Prostate cancer is an internationally important health problem in man, particularly in developed countries. The aim of this exploratory study was to clarify the differences between the prostatic levels of chemical elements in patients with malignantly transformed prostate (PCa) and healthy male inhabitance. Prostatic tissue levels of 66 chemical elements were prospectively evaluated in 60 patients with PCa and 37 healthy males. Measurements were performed using a combination of five non-destructive and destructive analytical methods. A significant increase in the mean level of Ag, Al, Au, B, Ba, Be, Bi, Br, Ce, Cr, Cu, Dy, Er, Fe, Gd, Hg, Ho, Li, Mn, Nd, Ni, Pr, Sb, Si, Sm, Sn, Sr, Tb, Th, Ti, Tl, Tm, Y and Zr accompanied a decrease in the mean level of Ca, Cd, Co, K, Mg, Na, P, Rb, S, Sc, Se, and Zn was observed in the cancerous prostates. It was not found any differences in the mean prostatic level of other chemical elements including Cs, La, Mo, Nb, P, Pb, U, and Yb between PCa patients and healthy males. This work’s results reveal that in malignantly transformed prostate the chemical element metabolism is drastically disturbed.

Keywords: Prostate cancer, prostatic chemical element contents, energy dispersive X-ray fluorescence analysis, neutron activation analysis, inductively coupled plasma atomic emission spectrometry, inductively coupled plasma mass spectrometry.

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The Relation between Plasma Levels of Thrombomodulin and Endothelial Dysfunction in Syrian Children with Acute Lymphoblastic Leukemia
Pages 131-134

Rana Aldabbas and Jumana Alsaleh
DOI:
http://dx.doi.org/10.6000/1927-7229.2017.06.03.2

Published: 31 August 2017


Abstract: Background: Acute lymphoblastic leukemia (ALL) is the most common childhood malignancies, representing nearly one-third of all pediatric cancers. Thrombomodulin is a membrane glycoprotein expressed on endothelial cells, Its plasma level depends on the integrity of the endothelium. Soluble thrombomodulin is derived from injured endothelial cells or proteolytically cleaved from thrombomodulin by proteases. In the past, the endothelium was considered to be inert, described as a 'layer of nucleated cellophane', with only non-reactive barrier properties. However, it is now becoming clear that endothelial cells actively and reactively participate in hemostasis and immune and inflammatory reactions. They regulate vascular tone via production of nitric oxide, endothelin and prostaglandins. Severe endothelial dysfunction is present during the acute phase of acute lymphoblastic leukemia and it result from the disease itself, from treatment, or from other conditions (e.g. sepsis).

Objective:The aim of this study was to determine the level of serum soluble thrombomodulin as a marker of endothelial activation in children with ALL at time of diagnosis and after the chemotherapy.

Methods and Materials: A case - control study included Thirty patients with ALL and twenty healthy children. We analyzed serum soluble thrombomodulin levels by enzyme-linked immunosorbent assay.

Results: In children with acute lymphoblastic leukemia, there was a significant increase in soluble thrombomodulin levels during the acute phase of the disease and during treatment.

Conclusion: severe endothelial dysfunction is present during the acute phase of ALL and during treatment and appears to result from the disease itself and from the treatment.

Keywords: Acute lymphoblastic leukemia (ALL), thrombomodulin, endothelial dysfunction, children, chemotherapy.
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Prevalence of Precancerous Lesions among Positive HIV Women in the Hospital Complex and University of Yaounde (Cameroun)
Pages 103-106
Dominique Vanessa Sob Djuendje, Armel Herve Nwabo Kamdje and Blaise Nkegoum
DOI:
https://doi.org/10.6000/1927-7229.2017.06.02.3
Published: 25 April 2017


Abstract: In the year 2000, a wide campaign of screening and treatment of the dysplastic lesions of the cervix was initiated in Cameroun. The precancerous lesions of the cervix are the most important demonstration of gynecological infection by the AIDS. As these lesions remain little documented in Cameroun, we carried out a study which the goal was to determine the prevalence of the precancerous lesions among positive AIDS women.

It is about a descriptive study with a retrospective collection of data carried out between 2010 and 2016 among 253 positive AIDS women having carried out a consultation in the Hospital complex and University of Yaounde aged from 18 to 80 years. The analysis of the data was essentially carried on: the age, clinical Factors data of risk of the precancerous lesions, anatomo-pathological search of precancerous lesion. AIDS status and/or the catch the antiretroviral one. The Software SPSS was used for the analysis of data. The test of Chi2 for the comparison of the variables. A variable was considered significant if P<0,05.

53 women presented precancerous lesions i.e. 20,94%. The lesions were in 92% of the squamous lesions with intra epithelial of low rank and in 8% of the squamous lesions with intra epithelial of high rank. 22 women (38%) were aged between 36 and 45 years; 22 women (40%) were housewives; 18 women (31%) were single people; 36 women (67%) were multipares; 45 women (85%) did not smoke; 33 women (62%) had a peak of CD4 located between 500-1000/mm3;14 women (26%) did not have opportunist diseases 10 women (19%) had the zona, 8 women (15%) of tuberculosis and 9 women (17%) suffered from HTA.

Because of the high potential risk of precancerous lesions in our population of study, we recommend a regular clinical follow-up of the patients presenting high factors of risk, and a widened access to antiretroviral.

Keywords: Precancerous lesions, AIDS, Prevalence.

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