The Effect of Socio-Economic-Cultural Factors on Breast Cancer.

OBJECTIVE: Socioeconomic and cultural factors influence breast cancer prognosis. The effect of these factors on breast cancer was evaluated among women who live in Gaziantep and its surroundings. MATERIALS AND METHODS: female patients who were admitted to Gaziantep University Oncology Hospital with a diagnosis of breast cancer between October 2006-July 2013 were included in the study. The effects of socio-demographic characteristics on clinical-pathological features were evaluated. RESULTS: The mean age of 813 women was 48.8 years. The majority were premenopausal women. Advanced stage disease on diagnosis was detected more in our region. The rate of breast cancer with unfavorable prognostic features was higher among patients who were illiterate, with low economic income and residing in rural areas. CONCLUSION: Socioeconomic-cultural factors influence the biology and clinical course of breast cancer among women who live in Gaziantep province.

Influence of ethnicity on survival of breast cancer patients in Turkey.

BACKGROUND: Kurdish women with breast cancer have more unfavorable prognostic factors than their Turkish and Arab counterparts. However, the effects of these factors on breast cancer survival among these ethnic groups remain unclear. We therefore investigated the impact of ethnicity on survival in breast cancer patients in Turkey. MATERIALS AND METHODS: Ethnicity, age, stage at diagnosis, tumor characteristics, treatments given (surgery, chemotherapy, radiotherapy and hormone therapy), and survival times were recorded. Kaplan- Meier analysis was used to estimate the overall survival times and survival plots. Log-rank test was used to compare the survival curves. RESULTS: Of the 723 breast cancer patients included in the study, 496 (68.7%) were Turkish, 189 (26.2%) were Kurdish, 37 (5.1%) were Arabic and 1 was Armenian. Kurdish women with breast cancer had larger tumor sizes and higher rates of hormone receptor negative tumors than Turkish and Arab patients. Mean follow-up time was 118.4 [95% Confidence Interval (CI): 95.4-141.3] months, and it was 129.9 (95% CI: 93.7-166.2), 124.2 (95% CI: 108.4-140.1) and 103.1 (95% CI: 85.9-120.4) months for Turkish, Arabic and Kurdish patients, respectively. CONCLUSIONS: Kurdish ethnicity is associated with higher rates of hormone receptor negative and triple-negative tumors and with worse survival. Clinical and epidemiological research is warranted to elucidate reasons underlying overall survival, variations in tumor biology, differences in treatment responsiveness, and effects of social factors among ethnic groups in Turkey.

Radiation-modifying abilities of Nigella sativa and thymoquinone on radiation-induced nitrosative stress in the brain tissue.

To investigate Nigella sativa oil (NSO) and Thymoquinone (TQ) for their antioxidant effects on the brain tissue of rats exposed to ionizing radiation. Fifty-four male albino Wistar rats, divided into six groups, were designed as group I (normal control group) did not receive NSO, TQ or irradiation; group II (control group of TQ) received dimethyl sulfoxide and sham irradiation; group III (control group of NSO) received saline and sham irradiation; group IV (irradiation plus NSO group) received both 5 Gray of gamma irradiation to total cranium and NSO; group V (irradiation plus TQ group) received both irradiation and TQ; group VI (irradiation alone group) received irradiation plus saline. Alterations in nitric oxide (NO·) and peroxynitrite (ONOO(-)) levels, and nitric oxide synthase (NOS) enzyme activity were measured by biochemical methods in homogenized brain tissue of rats. Levels of NO· and ONOO(-), and enzyme activity of NOS in brain tissue of the rats treated with NSO or TQ were found to be lower than in received IR alone (p<0.002) Nigella sativa oil (NSO) and its active component, TQ, clearly protect brain tissue from radiation-induced nitrosative stress.