Risk factors associated with a breast cancer in a population of Moroccan women whose age is less than 40 years: a case control study

Quality of Life and Age-Related Predictor Symptoms in Breast Cancer Survivors Undergoing Hormone Therapy: A Study from the Northern Region of Morocco

Objective

The aim of this study was to assess the health-related quality of life (HRQoL) of breast cancer (BC) survivors during adjuvant hormone therapy (AHT) as a function of age and to identify predictor symptoms.

Materials and Methods

The study was based on a cross-sectional survey of 216 BC survivors undergoing AHT, in the Northern Region of Morocco. HRQoL was assessed using a validated HRQoL questionnaire, the Functional Assessment of Cancer Treatment (FACT-ES). Multiple linear regression analysis was used to identify predictor symptoms for the subscales of the FACT-ES.

Results

Younger women (<45 years) had lower scores on the emotional well-being subscale (p = 0.021). Irritability (b: -0.786; p = 0.001) and mood swings (b: -0.835; p = 0.031) were the strongest negative predictors of emotional quality of life. In both age groups, items related to social support had a positive effect on survivors' social HRQoL (p<0.05).

Conclusion

BC survivors' HRQoL during AHT differed by age group. Emotional problems negatively influenced HRQoL in younger women. Knowledge of the symptoms that predict HRQoL in BC survivors may help clinicians develop personalized interventions.

Obesity and Risk of Pre- and Postmenopausal Breast Cancer in Africa: A Systematic Review

Background and Aims: Several epidemiological studies have investigated the relationship between anthropometric factors and breast cancer (BC), but the results, particularly for premenopausal BC, remain inconsistent and contradictory. The aim of this systematic review is to present an overview of studies examining the association between obesity and BC risk in African women, by menopausal status. Methods: PubMed, Scopus, Web of Science, and Google Scholar were searched until 17 February 2025 to identify published articles. The review included original studies, with no restrictions on publication date or language. The exposures studied were height, weight, body mass index (BMI), waist circumference (WC), hip circumference (HC), and waist-to-hip ratio (WHR). The quality of the studies was assessed using the National Institute of Health (NIH). Study selection and data extraction were carried out by two authors separately. Results: A total of fifteen case-control studies were included in this systematic review, comprising 45,056 subjects (7221 cases and 37,835 controls). Among them, fourteen studies reported stratified results for pre- and postmenopausal women, and one reported findings for only premenopausal BC. We found that BMI was associated with an increased risk of BC in both premenopausal and postmenopausal women, though the associations varied across studies. Height was associated with an increased risk of pre- and postmenopausal BC. WHR was positively associated with BC in pre- and postmenopausal women, while WC showed a positive association with the risk of postmenopausal BC, and inconsistent results with premenopausal BC. Finally, a higher HC was positively associated with premenopausal and postmenopausal BC. Conclusions: The risk of developing BC is higher in obese postmenopausal women. The protective role of BMI has not been demonstrated in African premenopausal women. WHR is a risk factor for premenopausal and postmenopausal BC. There is a need to study the influence of stages of overweight and obesity on BC risk in a large sample of African women in-depth.

Risk factors for breast cancer among women in Freetown, Sierra Leone, 2017: a case-control study

Introduction

breast cancer is the most commonly diagnosed malignancy and an important cause of cancer death among females worldwide. The disease accounted for 25% (1.67 million) of new cancer cases and the fifth cause of cancer deaths. Incidence of all types of cancers is approximately 25% in Sierra Leone. However, there was no documented evidence on risk factors for breast cancer among women in the country. The main aim of this study was to assess risk factors associated with breast cancer among women screened for breast cancer in Freetown Sierra Leone.

Methods

we conducted a case-control study on breast cancer involving 116 confirmed breast cancer cases and 116 controls. Questionnaire was designed to collect data on socio-demographic, reproductive and behavioral risk factors. Analysis was carried using logistic regression to assess the associations between breast cancer and the risk factors.

Results

in the final multiple logistic regression, had formal educational level, (aOR 0.1, 0.03-0.26, p= 0.001) physical activity for more than 30 minutes per week (aOR 0.5 (0.9- 0.7, p=0.001). Cigarette smoking (aOR 4.8, 1.2-18.5, p=0.023) and family history of breast cancer (aOR 9.9 cigarette smoking (OR 4.4, 1.2-18.5, p=0.023) and family history of breast cancer (OR 9.9, 2.7-36.45, p=0.040) were identified as the main risk factors for breast cancer. This study did not find any statistically significant associations between reproductive risk factors and breast cancer.

Conclusion

risk factors for breast cancer among women in Sierra Leone include educational level, physical activity, cigarette smoking and family history of breast cancer. We recommended screening program for women above 40 years and had history of breast cancer. Also, to establish breast cancer registry.

Comparative epidemiological study of breast cancer in humans and canine mammary tumors: insights from Portugal

Dogs spontaneously develop mammary gland tumors (MGT) and exhibit striking similarities in clinical and epidemiological characteristics to human breast cancer (HBC). Descriptive and comparative analysis of HBC and canine MGT with a focus on evaluating similarities and geographical distribution were the aims of this study. HBC cases were obtained from North Regional Oncological Registry (RORENO) (2010-2015) and canine MGT cases from Vet-OncoNet (2019-2022). Analyses were performed based on published and well accepted classification systems (ICD-O-3.2 for humans and Vet-ICD-O-canine-1). Age-standardized incidence risks (ASIR) of Porto district municipalities were calculated using 2021 Portuguese census (INE) and data from the Portuguese animal registration system (SIAC). Among 7,674 HBC cases and 1,140 MGT cases, a similar age and sex distribution pattern was observed. Approximately 69.2% of HBC cases were between 40 and 69 years old, while 66.9% of MGT cases were diagnosed between 7 and 12 years old (mean age of 9.6 years, SD = 2.6). In women, Invasive breast carcinoma (8500/3) was the most common histological type (n = 5,679, 74%) while in dogs it was the Complex Carcinoma (8983.1/3) (n = 205, 39%). Cocker and Yorkshire Terriers exhibited the highest relative risks (3.2 and 1.6, p < 0.05, respectively) when compared to cross breed dogs. The municipalities' ASIR of the two species exhibited a high correlation (R = 0.85, p < 0.01) and the spatial cluster analysis revealed similar geographic hotspots. Also, higher ASIR values both in women and dogs were more frequently found in urbanized areas compared to rural areas. This research sheds light on the shared features and geographical correlation between HBC and canine MGT, highlighting the potential of cross-species environmental oncology studies.

Epidemiology of Breast Cancer Mortality in Kazakhstan, trends and Geographic Distribution

BACKGROUND

According to the International Agency for Research on Cancer, ongoing demographic changes will lead to an increase in the number of deaths from breast cancer (BC) per year in the vast majority of regions. In 2040 it is expected that 1.04 million people worldwide will die from this malignancy, including 2,380 women in Kazakhstan.

METHODS

The retrospective study (2009-2018) was done using descriptive and analytical methods of oncoepidemiology. The extensive, crude and age-specific incidence rates are determined according to the generally accepted methodology used in sanitary statistics. The data were used to calculate the average percentage change (APС) using the Joinpoint regression analysis to determine the trend over the study period.

RESULTS

During 10 years 12,958 women died from BC. An average age of the death was 61.6 years (95%CI=60.6-62.6) and tended to increase (APC=+0.6%, R2=0.6117). Age-specific rates had a bimodal increase with peak rates at 70-74 years - 76.7±5.5 (APC=+3.4%, R2=0.2656) and 80-84 years - 78.0±9.1 (APC=+3.7%, R2=0.0875). The age-standardized rate was 13.9 per 100,000 of female population, and the trend has decreased. When compiling thematic maps, mortality rates were determined on the basis of standardized indicators: low - up to 12.5, average - from 12.5 to 15.2, high - above 15.2 per 100,000. The results of the spatial analysis showed the regions with a higher levels of BC mortality rate per 100,000: Pavlodar (16.9), Almaty (19.2) and Astana cities (19.3).

CONCLUSIONS

Age-standardized mortality rates had a strong downward trend (APC=-4.0%, R2=0.9218). The decrease mostly is due to a large coverage of the population by mammography screening and to an improvement in the effectiveness of breast cancer treatment.

Glutathione S transferase T1 gene polymorphism and its promoter methylation are associated with breast cancer susceptibility in Egyptian women

BACKGROUND

Breast cancer (BC) is one of the leading causes of cancer mortality in women. Glutathione S-transferase (GSTT1) is involved in activation of detoxification reactions and catalysis of chemicals conjugation with glutathione. GSTT1 genotype is a limiting factor for some environmental diseases. Epigenetic changes have an essential role in BC through inappropriate interaction between genomic and environmental risk factors.

AIM

This study was directed to explore the association of BC risk with GSTT1 genetic variations and its methylation status in Egyptian women.

DESIGN AND METHODS

This study included 100 healthy women as the control group and 100 patients were clinically and histologically diagnosed with breast cancer. All blood samples were used for genomic DNA extraction. GSTT1 genotyping was accomplished by multiplex PCR and methylation-specific PCR was used to analyze the GSTT1 promoter methylation status.

RESULTS

Breast cancer patients showed significant incidence of null GSTT1 in relation to controls (p = 0.004). GSTT1 gene promoter methylation status showed significant difference between hypermethylated and unmethylated patients when compared with healthy subjects (p = 0.005). GSTT1 promoter methylation status was not significantly associated with null genotype. There was no significant association between GSTT1-null genotypes and BC stage in cases with or without family history, but for promotor methylation, there was significant association with stage III and IV breast cancer disease.

CONCLUSION

GSTT1 null genetic variant and promoter hypermethylation in the GSTT region of the gene may be considered as critical risk factors for BC in Egyptian women.

Energy and Macronutrients Intakes among Childbearing Age Women Living in the Urban Area of Morocco: A Cross-Sectional Study

Over the last few decades, there have been significant dietary and lifestyle changes worldwide. In Morocco, these changes have led to serious nutritional disorders and increased risk of morbidity and mortality particularly among vulnerable groups such as women of childbearing age. We aimed to assess the average daily energy and macronutrient intakes and to investigate their association with socioeconomic factors and weight status among women aged 19-49 years in urban areas. A total of 542 women attending public health centers were recruited. Socioeconomic and demographic data were collected using a questionnaire. Anthropometric measurements were taken using standardized equipment. Food consumption data were obtained through the 24-hour dietary recall method, and the macronutrient composition of foods was estimated based on the Moroccan food composition table and the Nutrilog software. The average daily energy intake among the study population was 1591 kcal, composed of 56% from carbohydrates, 28% from fats, and 16% from protein. Reported energy intake by the majority of women (81.5%) was lower than recommended daily allowances for energy. There was a significant positive correlation between educational level and energy (p=0.001), carbohydrates (p=0.001), proteins (p=0.004), and fats intakes (p=0.032), respectively. A significant negative association of household size with protein intakes was also observed (p=0.034). Carbohydrates, proteins, and fats intakes tended to decrease; however, these associations were not statistically significant. Further studies and appropriate interventions are needed to address the trends in energy and macronutrients intakes in the development of policy initiatives aimed at nutrition education and chronic disease prevention among childbearing age women.

Breast cancer epidemiology among surgically treated patients in Jordan: A retrospective study

Background: Multiple risk factors contribute to the development of breast cancer, including age, positive family history, early menarche, late menopause and the strongest factor being female gender. In this study, we aimed to investigate the proportion of breast cancer patients with certain risk factors, the prevalence of each cancer type, in addition to the surgical procedures performed.

Methods: The medical records of patients diagnosed with breast cancer from January 2010 to November 2015 were evaluated retrospectively regarding demographics, breast cancer risk factors, comorbidities, diagnostic methods, tumor location, cancer type and stage, pathological findings, tumor markers, harvested lymph nodes and the types of surgical procedures. The collected data were statistically analyzed as number, mean, and frequency as percentages. Cases with deficient medical records were excluded from the analysis of certain parameters.

Results: The sample consisted of 120 patients, 118 (98.3%) of whom were women. The mean age was 56.5±12.0 years. The most common diagnostic method at presentation was self-exam in 93.3% of patients. Invasive ductal carcinoma was the most common type of tumor (80.0%). The pathological stages could be determined for only 106 patients, and 26 patients (24.5%) were at stage 1 disease, 45 patients (42.5%) were at stage 2 whereas 34 patients (32.1%) were at stage 3. According to the results of pathological examinations, 72.6% (85 patients) of the cases were estrogen receptor positive, 61.2% (71 patients) were progesterone receptor positive while 24.8% (27 patients) were HER positive. Modified radical mastectomy (MRM) was performed in 52 (43.3%) patients and wide local excision (WLE) was preferred in 46 (38.3%) cases.

Conclusion: Advanced age, positive family history, and prolonged estrogen exposure were remarkable in the majority of patients. Moreover, the most common type of breast cancer was invasive ductal carcinoma, and around half of the patients presented at stage 2 disease. Modified radical mastectomy and WLE were the most commonly performed surgical procedures.

Association Of GSTM1, GSTT1 And GSTP1 Polymorphisms With Breast Cancer Among Jordanian Women

Purpose

Genetic predisposition to disease has become one of the most investigated risk factors in recent years, and breast cancer (BC) is no exception. In this study, we investigated specific genetic variants of three candidate genes belonging to the glutathione-S-transferase superfamily that have been implicated in increased risk of cancers.

Materials and methods

This case-control study comprised 241 Jordanian women who were diagnosed with BC in addition to 219 matched controls. Gel electrophoresis of PCR products was used to visualize and genotype both the GSTM1 and GSTT1 genes, while PCR-RFLP was employed to genotype the rs1695 of the GSTP1 gene.

Results

Our findings did not reveal any correlation between the investigated polymorphisms of GST genes and BC risk among Jordanian women. Otherwise, the combination of GSTM1 entire gene deletion and (GG) genotype of GSTP1 polymorphism (rs1695) was significantly associated with BC with p-value <0.05 (i.e. p-value was not significant after correcting for multiple comparison).

Conclusion

We suggest that the interaction between GSTM1 polymorphism and rs1695 of GSTP1 may influence BC development and progression among Jordanian women. More epidemiological studies are needed to provide a baseline for the underlying role of GSTs polymorphisms in tumorigenesis.

An In silico Approach to Identify High Affinity Small Molecule Targeting m-TOR Inhibitors for the Clinical Treatment of Breast Cancer

Breast cancer is the most frequent malignancy among women. It is a heterogeneous disease with different subtypes defined by its hormone receptor. A hormone receptor is mainly concerned with the progression of the PI3K/AKT/mTOR pathway which is often dysregulated in breast cancer. This is a major signaling pathway that controls the activities such as cell growth, cell division, and cell proliferation. The present study aims to suppress mTOR protein by its various inhibitors and to select one with the highest binding affinity to the receptor protein. Out of 40 inhibitors of mTOR against breast cancer, SF1126 was identified to have the best docking score of -8.705, using Schrodinger Suite which was further subjected for high throughput screening to obtain best similar compound using Lipinski’s filters. The compound obtained after virtual screening, ID: ZINC85569445 is seen to have the highest affinity with the target protein mTOR. The same result based on the binding free energy analysis using MM-GBSA showed that the compound ZINC85569445 to have the the highest binding free energy. The next study of interaction between the ligand and receptor protein with the pharmacophore mapping showed the best conjugates, and the ZINC85569445 can be further studied for future benefits of treatment of breast cancer.

Predictive Analysis of Palmar Dermatoglyphics in Patients with Breast Cancer for Small Bosnian-Herzegovinian Population

INTRODUCTION

Malignant breast cancer is the most common malignancy in women between 40 and 55 years of age. Dermatoglyphs are polygenetically determined properties, whose appearance and number are determined by a specific gene. They represent the skin reefs that are created by epidermis on the fingers or toes, palms and soles. Palmar dermatoglyphs have been used to estimate the hereditary basis of many diseases.

AIM

The aim of the paper is to determine whether there is a statistically significant difference between the observed qualitative and quantitative parameters of both palms between the experimental and the control group.

MATERIAL AND METHODS

A survey of the qualitative and quantitative properties of the palmar complex was carried out on a total of 100 female respondents. The first group included 50 women with breast cancer. Comparative data were used for the analysis of palmar dermatoglyphs in the second group of respondents, or 50 phenotypic healthy female subjects. The imprints of the palmar complex were taken using the printake ribbons, analyzed, and the data was then statistically processed and displayed in charts. An analysis of the number of reefs between two digital triradius was performed, followed by the determination of the axially triad position, as well as the ATD angle measurement.

RESULTS

Quantitative analysis of ATD-angle showed statistically significant difference between the left and right palms of the analyzed groups. However, the analysis of the number of reefs between triradius A-B, B-C, C-D did not show statistically significant results for both the left and right hand between the analyzed groups.

CONCLUSION

These results indicate that the quantitative palmar parameter, ATD-angle, can play a role in identifying women with increased risk of breast cancer.