Epidemiological correlates of breast cancer in South India

Downregulation of MICA/B tumor surface expressions and augmented soluble MICA serum levels correlate with disease stage in breast cancer

OBJECTIVE

In this study, the profiling of the expression of major histocompatibility complex (MHC) class I-related chain A and B (MICA/B) in human breast cancer tumor tissue, saliva, and urine samples of breast cancer patients and control is carried out. MICA/B is ligand of NKG2D receptor expressed on malignant cells. The release of MICA/B from tumor tissue comprises an immune escape mechanism that impairs antitumor immunity. Based on this literature we explored the potential of soluble MICA (sMICA) as a marker in breast cancer (BC).

METHODS

The expression was profiled by using immunohistochemistry (MICA/B), western blot (MICA/B) and ELISA (MICA).

RESULTS

The optical density of western blot of MICA/B in different stages of BC illustrated significant difference as per one way analysis of variance and significant difference with stage III and IV by Dunnett's multiple comparisons test respectively. Analysis of sMICA in serum, saliva and urine of BC patients revealed significantly higher levels (median 41.0 ± 4.1 pg/ml in pre-treatment sera, 181.9 ± 1.6 pg/ml in saliva and 90.7 ± 1.7 pg/ml in urine) than in control (median <1.2 pg/ml). The elevated levels of sMICA were related to the cancer stage.

CONCLUSIONS

The elevated levels of sMICA were observed in patients with well differentiated cancer while the poor expression of sMICA was observed in patients with poorly differentiated tumors. Tumor immunity is impaired by the release of MICA in the biofluids and may be useful for detection and diagnosis of the stage of BC.

A comparative analysis of features and outcome of breast cancer in younger versus older women: A single center experience from Eastern Indian subcontinent

Purpose

Globally, breast cancer is the leading malignancy in females. Indeed, Asian cohorts show prevalence of breast cancer among women with ages below 40 years. Moreover, these younger cases are globally characterized by poorer prognostic features as well as survival outcomes, than older sufferers with ages above 40 years. Despite this, comparative analyses between older and younger cohorts are sparse from India, where data from the country's eastern part falls shortest. This study attempted a comprehensive analysis of breast cancer between these two cohorts representing the Eastern Indian subcontinent.

Methods

Documenting retrospective case-files registered between 2010 and 2015, 394 cases of younger (<40 years) and 1250 older (≥40 years) sufferers of primary breast cancer were noted. The relevant features and follow-up information were also retrieved. Kaplan-Meier analyses were performed to evaluate the survival outcome.

Results

The data, in general, revealed a high percentage of younger sufferers from Eastern Indian regions. Moreover, this younger cohort showed poor survival. Among the younger cohort, cases with poor pathological features (triple negative, node-positive, grade III) were proportionately higher than the older cohort. Indeed, survival among these categories scored significantly low, compared to the older cohort.

Conclusion

This Eastern Indian subcontinental data matched the analyses from other parts of India as well as Asian data and clearly showed the prevalence of younger sufferers of breast cancer with poor clinico-pathological features and survival outcomes.

Impact

Analyzing age-based features and outcomes from Eastern India, this study provides data in supplementing Indian and Asian scenarios of breast cancer.

Global Burden of Female Breast Cancer: Age-Period-Cohort Analysis of Incidence Trends From 1990 to 2019 and Forecasts for 2035

Introduction

This study aimed to describe the latest epidemiology of female breast cancer globally, analyze the change pattern of the incidence rates and the disease’s association with age, period, and birth cohort, and subsequently present a forecast of breast cancer incidence.

Methods

Data for analysis were obtained from Global Burden of Disease (GBD) Study 2019 and World Population Prospects 2019 revision by the United Nations (UN). We described the age-standardized incidence rates (ASIRs) from 1990 to 2019 and then calculated the relative risks of period and cohort using an age-period-cohort model, and predicted the trends of ASIRs to 2035.

Results

In 2019, the global incidence of breast cancer in women increased to 1,977,212 (95% uncertainty interval = 1 807 615 to 2 145 215), with an ASIR of 45.86 (41.91 to 49.76) per 100 000 person-year. Among the six selected countries facing burdensome ASIRs, only the USA showed a downward trend from 1990 to 2019, whereas the others showed an increasing or stable trend. The overall net drift was similar in Japan (1.78%), India (1.66%), and Russia (1.27%), reflecting increasing morbidity from 1990 to 2019. The increase in morbidity was particularly striking in China (2.60%) and not significant in Germany (0.42%). The ASIRs were predicted to continue to increase globally, from 45.26 in 2010 to 47.36 in 2035. In most countries and regions, the age specific incidence rate is the highest in those aged over 70 years and will increase in all age groups until 2035. In high-income regions, the age specific incidence rates are expected to decline in women aged over 50 years.

Conclusions

The global burden of female breast cancer is becoming more serious, especially in developing countries. Raising awareness of the risk factors and prevention strategies for female breast cancer is necessary to reduce future burden.

Breast cancer awareness among women in an urban setup in Western India

Introduction: Breast cancer is a leading cause of death among women globally. Better outcomes for patients can be ensured by early detection and treatment. Early detection requires a high degree of awareness about the various aspects of cancer including etiology, risk factors, signs and symptoms, and breast self-examination (BSE) practices. The purpose of this study was to assess the knowledge and awareness related to breast cancer along with willingness for treatment, among women in an urban setup in Western India. Materials and Methods: We conducted a cross-sectional study with 500 women belonging to the age group of 18–70 years residing in an urban area of Mumbai. Data were obtained through the use of a structured questionnaire over a period of 6 months (April–September 2016). Results: Over half of the respondents (71.42%) knew the symptoms of breast cancer. Awareness regarding the risk factors was varied. Although most (85.71%) of the respondents knew about BSE, contrastingly very few (38.09%) actually performed it. Awareness regarding diagnostic tests was limited to mammography and biopsy, but 90.47% of the women were willing to undergo these tests. 66.67% of women reported that the best treatment for breast cancer was surgery. Conclusion: Awareness of the different presentations of breast cancers (other than lump) is limited and so is the knowledge pertaining to risk factors. A lower level of education is most likely responsible for the low level of awareness and this is the main obstacle for undergoing regular cancer screening and early detection. There is a need of developing an effective health education programs to educate women about breast cancer, propagate valid information via the media, and promote early detection of breast cancer to ensure better outcomes.

Design and development of novel inhibitors of aldo-ketoreductase 1C1 as potential lead molecules in treatment of breast cancer

Aldo-keto reductase 1C1 (AKR1C1) is a hydroxysteroid dehydrogenase, known to inactivate the biologically active progesterone into its corresponding 20 α-hydroxyprogesterone. Increased expression of the AKR1C1 gene in oncogenesis is linked with resistance to various anticancer agents and hence it is considered as an emerging drug target for the design and developing the novel anticancer drugs. We have performed QSAR pharmacophore modeling for AKR1C1 inhibitors followed by a virtual screening of ~ 59,000 compounds present at the Maybridge database. The screened compounds were refined using drug-like filters of Lipinski rule, ADMET plot, molecular docking and scoring and subsequently top 20 hits were selected. Selected compounds were subjected to the in vitro for AKR1C1 inhibition assay and best seven compounds bearing excellent binding affinity to the AKR1C1 were finally selected. The identified compounds may be exploited in hit-to-lead development and may also prove as an interventional strategy in preventing a pre-term birth due to declining levels of progesterone.

Deep learning assisted multi-omics integration for survival and drug-response prediction in breast cancer

Background

Survival and drug response are two highly emphasized clinical outcomes in cancer research that directs the prognosis of a cancer patient. Here, we have proposed a late multi omics integrative framework that robustly quantifies survival and drug response for breast cancer patients with a focus on the relative predictive ability of available omics datatypes. Neighborhood component analysis (NCA), a supervised feature selection algorithm selected relevant features from multi-omics datasets retrieved from The Cancer Genome Atlas (TCGA) and Genomics of Drug Sensitivity in Cancer (GDSC) databases. A Neural network framework, fed with NCA selected features, was used to develop survival and drug response prediction models for breast cancer patients. The drug response framework used regression and unsupervised clustering (K-means) to segregate samples into responders and non-responders based on their predicted IC50 values (Z-score).

Results

The survival prediction framework was highly effective in categorizing patients into risk subtypes with an accuracy of 94%. Compared to single-omics and early integration approaches, our drug response prediction models performed significantly better and were able to predict IC50 values (Z-score) with a mean square error (MSE) of 1.154 and an overall regression value of 0.92, showing a linear relationship between predicted and actual IC50 values.

Conclusion

The proposed omics integration strategy provides an effective way of extracting critical information from diverse omics data types enabling estimation of prognostic indicators. Such integrative models with high predictive power would have a significant impact and utility in precision oncology.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12864-021-07524-2.

Landscape of clinically actionable mutations in breast cancer 'A cohort study'

Breast cancer (BC) is a heterogeneous disease. Numerous chemotherapeutic agents are available for early stage or advanced/metastatic breast cancer to provide maximum benefit with minimum side effects. However, the clinical outcome of patients with the same clinical and pathological characteristics and treated with similar treatments may show major differences and a vast majority of patients still develop treatment resistance and eventually succumb to disease. It remains an unmet need to identify specific molecular defects, new biomarkers to enable clinicians to adopt individualized treatment for every patient in terms of endocrine, chemotherapy or targeted therapy which will improve clinical outcomes in BC. Our study aimed to identify frequent hotspot mutation profile in BC by targeted deep sequencing in cancer-related genes using Illumina Truseq amplicon/Swift Accel-Amplicon panel and MiSeq technology in an IRB-approved prospective study in a CLIA compliant laboratory. All the cases had pathology review for stage, histological type, hormonal status and Ki-67. Data was processed using Strand NGS™. Mutations identified in the tumor were assessed for 'actionability' i.e. response to therapy and impact on prognosis.

Opportunities and Barriers to Breast Cancer Screening in a Rural Community in Coastal Karnataka, India: A Qualitative Analysis

Background:

Breast cancer is reported to be the most common cancer among women in India with a high mortality to incidence ratio. Late presentation, driven by lack of awareness and limited accessibility to health services are some of the stated reasons for this. Given this context, this qualitative study was carried out to understand the perception of rural women towards the disease and factors that influenced utilization of available screening services among them.

Methods:

Forty-four rural women aged 20-60 years from a coastal province in southern India participated in four Focus Group Discussions (FGDs) that were conducted to understand their perception, attitudes and barriers towards breast cancer screening. Participants were identified from the community through purposive sampling and constituted of home makers and working women. The FGDs were led by trained facilitators and the discussions recorded. Ideas and concepts that emerged were listed as codes. Related and similar codes were grouped to form six themes.

Results:

Women in the study belonged to low- and middle-income households with a mean age of 42.8 ± 7.8 years and almost all had attended school. Although the respondents exhibited fairly good knowledge about the disease, cultural inhibitions, forgetfulness, economic constraints and apprehension towards tertiary health care facility were some of the barriers reported in the uptake of screening services. Participants hailed the role of female health care providers as motivational figures and stressed the need for easily comprehensible information dissemination strategies besides expecting an equal participation of men in issues involving women’s health.

Conclusion:

Involving cancer survivors as educators and empowering men on women’s health in addition to the felt need of a patient advocate to improve accessibility were some of the highlights of the discussions. Addressing these could go a long way in improving the cancer care continuum in the region.

A meta-analysis and in silico analysis of polymorphic variants conferring breast cancer risk in the Indian subcontinent

Background: Genetic association studies on breast cancer on the Indian subcontinent have yielded conflicting results, and the precise effect of these variants on breast cancer pathogenesis is not known. Methods: Genomic variants, as obtained from selected studies from the Indian subcontinent, were subjected to random-effects and fixed-effect meta-analysis. Functional annotation of the relevant variants was done through a tried and tested in silico pipeline. Results: We found rs4646903/CYP1A1, rs1799814/CYP1A1, rs61886492/GCPII, del2/GSTM1, rs4680/COMT and rs1801394/MTRR to be associated with breast cancer. The del2/GSTM1 holds the association in premenopausal women. Conclusions: This is the first study of its kind from the Indian subcontinent analysing the extent of association of variants across populations followed by their functional annotation in the disease pathway.

Community engaged breast cancer screening program in Kannur District, Kerala, India: A ray of hope for early diagnosis and treatment

INTRODUCTION

Community based programs can assist in early detection and improved survival of breast cancer.

AIMS

To assess the feasibility and explore challenges of a district-wide door-to-door breast cancer screening program "ASWAS" conducted in Kannur district, Kerala, India from 2011 to 2014. METHODS: Aggregate data from survey records were collected in terms of the population screened, referred, diagnosed, and treated. Case records of breast cancer patients who were identified were reviewed and updated. In-depth interviews were conducted with program stakeholders. The contents of the interview were organized into a strength, weakness, opportunity and threat (SWOT) matrix to describe the screening program.

RESULTS

A total of 1,049,410 eligible women above 30 years residing in 81 panchayats were visited door-to-door by 8,200 community volunteers; of them, 93% were screened using a symptom-risk factor checklist. Of those referred with symptoms (n = 5353), 81% attended the cancer camp. In total, 23 breast cancer cases were confirmed. 14 (61%) were in early stages, treated, and are disease free at 3-year follow-up. Those in the advanced stage and old age had poor outcomes. SWOT analysis identified political support, female volunteers, community engagement, dedicated fund for treatment, and teamwork as strengths. Weaknesses included poor healthcare access, maintaining volunteer motivation, and issues around sustainability.

CONCLUSION

Community participation with the engagement of the health system and local self-government are required for implementing a comprehensive cancer screening strategy. Breast-cancer screening program using local volunteers for early detection is feasible in low-income settings, thereby improving survival.

Molecular Mechanism of Cancer Susceptibility Associated with Fok1 Single Nucleotide Polymorphism of VDR in Relation to Breast Cancer

Breast cancer is the leading cause of death among women worldwide. It is a multi-factorial disease caused by genetic and environmental factors. Vitamin D has been hypothesized to lower the risk of breast cancer via the nuclear vitamin D receptor (VDR). Genetic variants of these vitamin D metabolizing genes may alter the bioavailability of vitamin D, and hence modulate the risk of breast cancer.

Physical activity participation and the risk of chronic diseases among South Asian adults: protocol for a systematic review and meta-analysis

BACKGROUND

Chronic diseases contribute to about half of the adult disease burden in the South Asian region. Meanwhile, physical activity levels are declining despite the global evidence of its role in the prevention of chronic diseases. While there are a plethora of systematic reviews on the effects of physical activity on chronic diseases, there has not yet been a synthesis of the evidence concerning the nature of this relationship among people living in South Asian countries incorporating multiple chronic diseases and a focus on physical activity domains. The aim of this protocol is to describe the rationale and methods for a systematic review of published research to identify the association between physical activity and selected chronic diseases and their markers and analysis of the strength of association with a focus on physical activity domains among South Asian adults 40 years and older.

METHODS

Nine electronic databases including Medline, PsycINFO, Embase, CENTRAL, CINAHL Plus, AgeLine, SPORTDiscus, Scopus and Web of Science will be systematically searched for papers reporting the association between physical activity and selected chronic diseases (type 2 diabetes mellitus, breast cancer, colorectal cancer, coronary heart disease, stroke, vascular diseases and musculoskeletal diseases (osteoarthritis, osteoporosis, back and neck pain)) and their markers using predefined search terms. Searches will be limited to peer-reviewed, English language papers with a quantitative design. In addition, a manual search of references of relevant systematic reviews as well as citations and references of eligible studies will also be carried out. The methodological appraisal will be performed using the National Institutes of Health quality assessment checklist for observational studies and the Effective Public Health Practice Project quality assessment tool for intervention studies. The overall quality of evidence for the study outcomes across the study designs will be assessed using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) framework. The review results will be presented in the form of narrative synthesis, and a random effects meta-analysis is planned depending on the nature of included studies and available data.

DISCUSSION

This review will summarise the strength of the association between physical activity and selected chronic diseases and their markers among South Asian adults 40 years or older. The findings will provide an evidence base to guide public health policy and interventions in the South Asian region and to inform future research to address the rising burden of chronic diseases.

SYSTEMATIC REVIEW REGISTRATION

PROSPERO CRD42018096505.

Rate of Breast-Conserving Surgery vs Mastectomy in Breast Cancer: a Tertiary Care Centre Experience from South India

Worldwide, breast conservation has become increasingly accepted as the surgical management of breast cancer in clinical practice. Cancer care in India is also evolving tremendously with many cancer treatment centres following evidence-based practice hence the rates of breast conservation are expected to increase. Here, we are reporting the rate of breast-conserving surgery (BCS) at our centre. A retrospective study of 401 patients who underwent breast cancer surgery at a tertiary care centre in South India from January 2015 to August 2017 were analysed to study the rate of BCS. All early breast cancers (EBC) were offered BCS. For large operable breast cancer (LOBC) and locally advanced breast cancer (LABC), neoadjuvant chemotherapy (NACT) followed by BCS was offered to these patients who wish to conserve their breast. The mean age was 45 years. A total of 163 patients underwent BCS. Yearly, BCS rates were 38.8% in 2015, 36.7% in 2016 and 46.5% in 2017. Majority had EBC 310 (77.3%) of which 62.7% of T1 lesions (n = 51) had BCS, and 45.7% of T2 lesions (n = 258) had BCS of which 5 patients had to undergo NACT to preserve their breast whereas 100% Tis patient (n = 1) had mastectomy. Fifty patients had LOBC and only 2 (4%) patients had upfront BCS whereas 9 of them had to undergo NACT (18%). cT4 lesions had NACT followed by BCS in 2 patients. The rates of BCS have been increasing in India over the past few years. The majority of the women presented with EBC which makes them suitable for BCS.

Study on the status of thyroid function and thyroid nodules in chinese breast cancer patients

We performed a study to investigate the status of thyroid nodules and thyroid functions in Chinese breast cancer women. The clinical data of female patients with breast cancer or benign breast diseases and normal populace were evaluated. The thyroxine(T4) level in initially diagnosed breast cancer patients were significantly higher than those in benign breast diseases patients (7.68±1.51 vs 7.29±1.52ug/dl, p<0.001), while the TSH levels were slightly lower than in benign breast diseases patients(3.23±4.59 vs 3.60±6.74uIU/ml, p=0.302). The overall incidence of hypothyroidism in initially diagnosed breast cancer and benign breast diseases patients were 28.65% and 32.74%(p=0.195). During chemotherapy, the T4(7.08±1.69ug/dl), fT3(2.87±0.48pg/ml) and fT4(0.83±0.15ng/dl) levels were significantly lower than in initially diagnosed breast cancer patients(7.68±1.51ug/dl, 3.07±0.50pg/ml, 0.88±0.20ng/dl, p<0.05). The incidence of thyroid nodules in initially diagnosed breast cancer patients, benign breast diseases patients and healthy population were 56.17%, 43.64%, 34.49%(p<0.001). The incidence of TI-RADS≥4 TN in initially diagnosed breast cancer patients and benign breast diseases patients were significantly higher than in normal population(7.27% vs 9.45% vs 2.87%, p<0.001). The incidence of TI-RADS≥4 thyroid nodules in breast cancer patients receiving chemotherapy was significantly higher than in initially diagnosed breast cancer patients(11.71% vs 7.27%, p<0.05). These data indicate that the incidence of thyroid disease in breast disease patients is higher than in normal population in China, and the breast diseases, especially breast cancer, might be related to the high incidence of thyroid nodules.

A qualitative exploration of cervical and breast cancer stigma in Karnataka, India

BACKGROUND

Breast and cervical cancer are two of the most common cancers among women worldwide and were the two leading causes of cancer related death for women in India in 2013. While it is recognized that psychosocial and cultural factors influence access to education, prevention, screening and treatment, the role of stigma related to these two cancers has received limited attention.

METHODS

Two qualitative exploratory studies. One focusing on cervical cancer, the other on breast cancer, were conducted in Karnataka, India using in-depth interviews and focus group discussions. In the breast cancer study, 59 in-depth interviews were conducted with patients, primary caregivers and healthcare providers. In the cervical cancer study, 147 respondents were interviewed including older and younger women, husbands, healthcare providers and community leaders. While stigma was not the focus of either study, themes relating to stigma emerged and are the focus of this analysis.

RESULTS

Cancer stigma emerged as a general theme across both data sets. It appeared throughout the transcripts as descriptions of how women with breast or cervical cancer would be treated and talked about by husbands, family and the community (manifestations of stigma) and the reasons for this behavior. Stigma as a theme also arose through discussions around managing disclosure of a cancer diagnosis. Stigma was juxtaposed with a narrative of support for women with cancer. Three major themes emerged as driving the manifestations of cancer stigma: fear of casual transmission of cancer; personal responsibility for having caused cancer, and; belief in and fear of the inevitability of disability and death with a cancer diagnosis. Manifestations of cancer stigma were described in terms of experienced (enacted) stigma, including isolation or verbal stigma, and anticipated (fear of) stigma, should a cancer diagnosis be disclosed.

CONCLUSIONS

The presence in these communities of cancer stigma and its many forms emerged across both the cervical and breast cancer data sets. Stigma was a feared outcome of a cancer diagnosis and described as a barrier to screening, early diagnosis and treatment seeking for women with symptoms. While further research on cancer stigma is needed, this exploration of some of the driving factors provides insight for future programmatic efforts to reduce cancer stigma and improve access to information, screening and treatment.

Monitoring modifiable risk factors for breast cancer: an obligation for health professionals

Worldwide, breast cancer is the most common disease in women and constitutes the second leading cause of cancer death in this population. The factors that contribute to the risk of occurrence are divided into nonmodifiable and modifiable factors. Although there are interventions in primary care to prevent the disease, these measures have not produced the desired changes in women’s health. This article reviews the major modifiable risk factors for breast cancer and describes how these factors can affect the incidence of cancer in women. This information shows that modifiable risk factors (such as physical activity, diet, obesity, and use of alcohol and tobacco) can influence the occurrence of breast cancer, in part depending on the life stage of a woman, including menopausal status. Timely prevention at the primary care level is one of the most important areas on which health professionals need to focus in order to help reduce the incidence of breast cancer.

Epidemiology of breast cancer in Indian women

Breast cancer has ranked number one cancer among Indian females with age adjusted rate as high as 25.8 per 100,000 women and mortality 12.7 per 100,000 women. Data reports from various latest national cancer registries were compared for incidence, mortality rates. The age adjusted incidence rate of carcinoma of the breast was found as high as 41 per 100,000 women for Delhi, followed by Chennai (37.9), Bangalore (34.4) and Thiruvananthapuram District (33.7). A statistically significant increase in age adjusted rate over time (1982-2014) in all the PBCRs namely Bangalore (annual percentage change: 2.84%), Barshi (1.87%), Bhopal (2.00%), Chennai (2.44%), Delhi (1.44%) and Mumbai (1.42%) was observed. Mortality-to-incidence ratio was found to be as high as 66 in rural registries whereas as low as 8 in urban registries. Besides this young age has been found as a major risk factor for breast cancer in Indian women. Breast cancer projection for India during time periods 2020 suggests the number to go as high as 1797900. Better health awareness and availability of breast cancer screening programmes and treatment facilities would cause a favorable and positive clinical picture in the country.

Sociodemographic Factors and Late-stage Diagnosis of Breast Cancer in India: A Hospital-based Study

Context:

Breast cancer (BC) is one of the major causes of cancer mortality in India. Late-stage diagnosis of BC is associated with poor survival. Identification of factors affecting late presentation of the disease could be an effective step to reduce BC mortality.

Aims:

To study the association of sociodemographic factors with BC stage at diagnosis.

Settings and Design:

The study is a retrospective analysis from the case records from a single institution.

Subjects and Methods:

Data for the year 2008 was collected from the hospital records. A total of 1210 cases were included for the analysis. Sociodemographic factors included were age, place of residence, religion, marital status, level of education, and occupation. Other study variables were family history, presence of comorbidity, and stage at diagnosis.

Statistical Analysis:

Association between sociodemographic factors by stage at diagnosis was tested using Chi-square statistics, with odds ratios (ORs) estimated through logistic regression modeling.

Results:

In the study cohort, 46% patients had reported at early stages and 54% at advanced stages. All factors were evaluated for being predictors of disease stage at presentation using univariate and multivariate logistic regression model. Women from urban background were less likely to present with advanced stage disease (OR = 0.64; 95% confidence interval [CI]: 0.49–0.84) as compared to rural women. Similarly, illiterate women were also more likely to present with advanced-stage disease (OR = 1.55; 95% CI: 1.16–2.09).

Conclusions:

This data clearly indicate that the patients of rural background and of low education status are more likely than their respective counterparts to have an advanced stage of BC diagnosis. Our results may be considered the keys to determining how stage variation may be related to patients and community characteristics and where limited resources need to be invested to ensure early diagnosis of BC.

Awareness of Cancer Symptoms and Barriers to Seeking Medical Help Among Adult People Attending Primary Care Settings in Oman

Objectives:

To explore the public’s awareness of cancer symptoms and the barriers to seeking medical help among Omani adults attending primary care settings in Muscat governorate, the capital city of Oman.

Methods:

The Cancer Awareness Measure (CAM) questionnaire (translated into Arabic) was used to collect data from a total of 12 randomly selected local health centers (LHCs) in Muscat governorate, the capital city of Oman. Omani adults aged 18 years and above attending LHCs during the study period were invited to participate in the study. Statistical Package for the Social Sciences (SPSS version 22) was used to analyze the data.

Results:

A total of 999 participants completed the CAM questionnaire from 1200 invitations (response rate = 83%). The overall recognition of common cancer symptoms was less than 50% except for an unexplained lump/swelling, which was 71%. Multinomial logistic regression showed that women recognized more cancer symptoms than men (odds ratio [OR] = 1.79; 95% confidence interval [CI]: 1.27-2.51), that more highly educated participations recognized more cancer symptoms than less educated participants (OR = 39; 95% CI: 0.23-0.69). The majority of participants (91.2%) agreed that the right time to seek medical help for possible cancer symptom was within 2 weeks. Multinomial logistic regression showed that women rather than men were more likely to perceive barriers to seeking medical help (OR = 2.10; 95% CI: 1.60-2.76). Also the less educated participants, rather than more educated, were more likely to perceive barriers to seeking medical help (OR = 2.17; 95% CI: 1.16-4.05).

Conclusion:

Levels of awareness of cancer symptoms are low in Oman. More national CAMs are needed in Oman to increase public knowledge of cancer symptoms. Also, more public awareness is needed to overcome the barriers to seeking timely medical help particularly among groups of women and the unmarried, widowed, divorced, or separated if delays in presentation are to be minimized.

Alteration of Thyroid Function in Indian HER 2-Negative Breast Cancer Patients Undergoing Chemotherapy

BACKGROUND

Thyroid hormones (TH) are regulated by the hypothalamic-pituitary axis, which plays an important role in cell growth, differentiation, development and other aspects of metabolism. It is believed that an active hypothalamic-pituitary axis increases the susceptibility of thyroid dysfunction during systemic chemotherapy. In order to investigate the relation between thyroid function and chemotherapy the present study was designed to investigate TH in breast cancer patients receiving at least three cycles of chemotherapy. The levels of TH were measured at the baseline and before each cycle of chemotherapy.

MATERIALS AND METHODS

Blood samples for estimation of TH levels were collected from 80 (pre-menopausal-40; post-menopausal-40) breast cancer patients just before they were undergoing--1st, 2nd, 3rd and 4th cycle of chemotherapy. The serum was separated and T3, T4 and TSH levels were determined by chemiluminescence method.

RESULTS

T3 and T4 were found significantly decreased and TSH was found significantly increased after 1st (p<0.001), 2nd (p<0.0001) and 3rd cycle of chemotherapy (p<0.0001). The variation of T3 levels (decreased) and TSH levels (increased) was found more in post-menopausal (p<0.0001) women then in pre-menopausal women after 3rd cycle of chemotherapy as compared to baseline (p<0.001).

CONCLUSIONS

TH were remarkably altered after each cycle of chemotherapy leading to decline in thyroid function of breast cancer patients. Further, the results also indicated that post- menopausal women were more prone towards decline in thyroid function then pre-menopausal women. The present study proposes the monitoring of TH after each cycle of chemotherapy in breast cancer patients.

Descriptive study on selected risk factors and histopathology of breast carcinoma in a tertiary care centre in Kerala, India with special reference to women under 40 years old

BACKGROUND

Breast cancer is the most common female cancer in Kerala, South India, with the incidence increasing in the past two decades, also in young women. However, there are limited data regarding the burden of disease, its epidemiology and histopathological characteristics in the state.

MATERIALS AND METHODS

This desciptive study covered 303 breast cancers evaluated during the period of December 2011 to August 2013 in the Department of Pathology, Government Medical College, Kottayam.The patients were also interviewed regarding selected risk factors.

RESULTS

The majority of the cases were 41-60 years of age with a mean at presentation of 53 years. Infiltrating ductal carcinoma was the most common subtype, followed by pure mucinous carcinoma and then lobular carcinoma. Of the cases, 6.6% were nullipara and 52.8% had fewer than or equal to 2 children. Median age at first child birth was 23 years (national value-19.8 years). A significant proportion (15%) had family history of breast cancer. Some 13.5%(41 cases) comprised the young breast cancer group (≤40years) with a mean age at first child birth in them was 27.4 years, 5 being nullipara and 6 having a positive family history.

CONCLUSIONS

Breast cancer awareness, better availability of screening techniques and identification and targeting high risk groups all help to tackle the increasing load of breast carcinoma. A good proportion of cases comprised the young breast cancer group (under 40). Younger women should thus also be educated about breast carcinoma-risk factors, symptoms and diagnostic techniques to help in early detection and effective approach esto treatment.

Dietary habits contributing to breast cancer risk among Iranian women

BACKGROUND

The aim of this study was to investigate demographic features, dietary habits, and some possible risk factors for being susceptible to breast cancer in Iranian women.

MATERIALS AND METHODS

A study of dietary habits and breast cancer was conducted among 53 Iranian women with histological confirmed disease and 40 matched controls. A dietary habits questionnaire was used to evaluate the pattern of selected food intakes. The risk of cancer was analyzed after adjustment for confounding factors. Age, weight, body mass index (BMI), waist circumference, educational status, parity, lactation, marital status, menopause, history of estrogen therapy, and family history of breast disease or cancer were assessed among participants. Special attention was given to the relationship between consumption of high fat meat, milk, yogurt and cheese as well use of frying oils for frying foods, use of olive/liquid oils for cooking, removing fat from meat and poultry, removing chicken skin and not use of mayonnaise as salad dressing and the risk of breast cancer. Moreover, salad, vegetable and fruit consumption, and eating outdoors owere investigated.

RESULTS

Our results revealed significant lower education and higher BMI and waist circumference levels in patients with breast cancer. There was significantly increased breast cancer risk in overweight women in comparison with normal weight (OR=2.91, 95%CI 1.24 to 6.82). High intake of fat dairy products including milk and cheese was found to be a statistically significant factor for increasing breast cancer risk in models adjusting for age, BMI and education. Use of olive/liquid oils for cooking and avoidance of mayonnaise as salad dressing are related to lower risk of breast cancer. The frequency of vegetable and fruit consumption was significantly lower in patients with breast cancer compared to healthy women.

CONCLUSIONS

Dietary habits might be risk factors for breast cancer among Iranian women. Adoption of a prudent diet could be an appropriate strategy for preventing breast cancer.

A review of breast cancer awareness among women in India: Cancer literate or awareness deficit?

Background

Breast cancer is the most common female cancer worldwide including India, where advanced stages at diagnosis, and rising incidence and mortality rates, make it essential to understand cancer literacy in women. We conducted a literature review to evaluate the awareness levels of risk factors for breast cancer among Indian women and health professionals.

Methods

A structured literature search using combined keywords was undertaken on bibliographic databases including MEDLINE, Cochrane Database of Systematic Reviews, Cumulative Index to Nursing and Allied Health (CINAHL) and SCOPUS. Searches were restricted to research published in English language peer-reviewed journals through December, 2014 in India.

Results

A total of 7066 women aged 15–70 years showed varied levels of awareness on risk factors such as family history (13–58%), reproductive history (1–88%) and obesity (11–51%). Literacy levels on risk factors did not improve over the 8-year period (2005–2013). On average, nurses reported higher, though still varied, awareness levels for risk factors such as family history (40.8–98%), reproductive history (21–90%) and obesity (34–6%). Awareness levels were not consistently higher for the stronger determinants of risk.

Conclusion

Our review revealed low cancer literacy of breast cancer risk factors among Indian women, irrespective of their socio-economic and educational background. There is an urgent need for nation- and state-wide awareness programmes, engaging multiple stakeholders of society and the health system, to help improve cancer literacy in India.

Relation of alcohol/tobacco use with metastasis, hormonal (estrogen and progesterone) receptor status and c-erbB2 protein in mammary ductal carcinoma

BACKGROUND

An association between alcohol/tobacco use and risk of metastasis in breast cancer has been clearly shown.

MATERIALS AND METHODS

The present study explored, in 48 samples of tissue from mammary ductal carcinoma (taken from Mexican women with an average age of 58.2±10.9 years), the association of risk of metastasis with the status of hormonal receptors and the c-erbB2 protein (by immunohistochemistry) as well as clinical, histopathological and sociodemographic factors.

RESULTS

Of 48 patients, 41.6% (20/48) presented with metastasis, 43.8% were positive for the estrogen receptor (RE+), 31.3% for the progesterone receptor (RP+) and 47.7% for c-erbB2 (c-erbB2+). The following combinations were found: RE+/RP+/c-erbB2+ 8.3%, RE+/RP+ 22.9%, RE+/RP- 20.8%, RE-/RP+ 8.3%, RE-/RP-/c-erbB2- 22.9% and RE-/RP- 47.8%. There were 12 patients who used alcohol/tobacco, of which 91.6% did not present metastasis and 81.9% were RE-/RP-. Compared to the RE-/RP-/c-erbB2+, the RE+/RP+/c-erbB2+ group had a 15-fold greater risk for metastasis (95%CI, 0.9-228.8, p=0.05). The carriers of the double negative hormonal receptors had a 4.7 fold greater probability of being (or having been) smokers or drinkers (95%CI, 1.0-20.4, p = 0.03).

CONCLUSIONS

There was a clear protective effect of using alcohol and/or tobacco, in the cases included in the present study of mammary ductal carcinoma, associated with double negative hormonal receptors. However, this association could be due to a protective factor not measured (Neyman bias) or to a bias inherent in the rate of hospitalization (Berkson fallacy). This question should be explored in a broad prospective longitudinal study.

Awareness of risk factors for cancer among Omani adults--a community based study

BACKGROUND

Cancer is the leading cause of mortality around the world. However, the majority of cancers occur as a result of modifiable risk factors; hence public awareness of cancer risk factors is crucial to reduce the incidence. The objective of this study was to identify the level of public awareness of cancer risk factors among the adult Omani population.

MATERIALS AND METHODS

A community based survey using the Cancer Awareness Measure (CAM) questionnaire was conducted in three areas of Oman to measure public awareness of cancer risk factors. Omani adults aged 18 years and above were invited to participate in the study. SPPSS (ver.20) was used to analyse the data.

RESULTS

A total of 384 participated from 500 invited individuals (response rate =77%). The majority of respondents agreed that smoking cigarettes (320, 83.3%), passive smoking (279, 72.7%) and excessive drinking of alcohol (265, 69%) are risks factors for cancer. However, fewer respondents agreed that eating less fruit and vegetables (83, 21.6%), eating more red or processed meat (116, 30.2%), being overweight (BMI>25) (123, 32%), doing less physical exercise (119, 31%), being over 70 years old (72, 18.8%), having a close relative with cancer (134, 34.9%), infection with human papilloma virus (HPV) (117, 30.5%) and getting frequent sunburn during childhood (149, 38.8%) are risk factors for cancer. A significant association was found between participant responses and their educational level. The higher the educational level, the more likely that respondents identified cancer risk factors including smoking (p<0.0005), passive smoking (p= 0.007), excessive drinking of alcohol (p<0.0005), eating less fruit and vegetables (p= 0.001) and infection with HPV (p<0.0005).

CONCLUSIONS

The majority of respondents in this study in Oman were not aware of the common risk factors for cancer. It may be possible to reduce the incidence of cancers in Oman by developing strategies to educate the public about these risk factors.