scholarly journals Computational FEM Model,PhantomandEx VivoSwine Breast Validation of an Optimized Double-Slot Microcoaxial Antenna Designed for Minimally Invasive Breast Tumor Ablation: Theoretical and Experimental Comparison of Temperature, Size of Lesion, and SWR, Preliminary Data

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Geshel David Guerrero López ◽  
Mario Francisco Jesús Cepeda Rubio ◽  
José Irving Hernández Jácquez ◽  
Arturo Vera Hernandez ◽  
Lorenzo Leija Salas ◽  
...  
Keyword(s):  
Breast Cancer ◽  
World Health ◽  
Experimental Comparison ◽  
Malignant Neoplasms ◽  
Fem Model ◽  
Optimal Coupling ◽  
Short Time ◽  
Heating Pattern ◽  
Invasive Breast Tumor ◽  
Detection Technologies

Malignant neoplasms are one of the principal world health concerns and breast cancer is the most common type of cancer in women. Advances in cancer detection technologies allow treating it in early stages; however, it is necessary to develop treatments which carry fewer complications and aesthetic repercussions. This work presents a feasibility study for the use of microwave ablation as a novel technique for breast cancer treatment. A microwave applicator design is also being proposed for this purpose. The coupling of the designed antenna was predicted with computer simulation. The standing wave ratio obtained through simulation was 1.87 and the result of experimental validation was 1.04. The optimized antenna has an optimal coupling (SWR = 1.04) so ablation temperatures can be achieved in a relatively short time using low power. Varying the time and power, the heating pattern can be changed to treat different tumors. However, as some discrepancies are still present, a deeper study of the dielectric properties and their variation with temperature is required.

scholarly journals Histopathological Profile of Neoplastic and Non-Neoplastic Lesions of Breast – A One Year Study in a Tertiary Care Center

2020 ◽  
Vol 7 (51) ◽  
pp. 3099-3104
Author(s):  
Deepthi Raj Madampithara Lekshmi ◽  
Sheela Kuzhuvelil Mohammed Ali ◽  
Jayalakshmy Payippat Leelamma ◽  
Lali Krishnan Rajan
Keyword(s):  
Breast Cancer ◽  
Cervical Cancer ◽  
Invasive Carcinoma ◽  
World Health ◽  
Malignant Neoplasms ◽  
Histopathological Diagnosis ◽  
Breast Lesions ◽  
Carcinoma Breast ◽  
Neoplastic Lesions ◽  
One Year

BACKGROUND Breast lesions have gained importance globally due to significant increase in mortality and morbidity associated with breast cancer which is now the commonest malignancy worldwide. Previously, cervical cancer was the most common cancer in Indian women but now the incidence of breast cancer has outnumbered cervical cancer and is the leading cause of death in women due to cancer. Although advances in imaging techniques and increased use of fine needle aspiration cytology have greatly assisted the preoperative evaluation of breast lesions, histopathology remains the gold standard in differentiating benign and malignant lesions. The present study was carried out to know the frequency, age distribution and histopathological profile of neoplastic as well as non-neoplastic lesions of breast. METHODS This retrospective one-year study was conducted in the Department of Pathology at a tertiary health care institute from January 2017 - December 2017. All specimens of mastectomy, lumpectomy, and Tru-Cut biopsies were studied except treated cases of malignancy. Detailed gross examination was done followed by thorough sampling and processing. Tissue sections were stained with haematoxylin and eosin. Different lesions were studied by microscopic examination. Neoplastic lesions were classified based on the WHO (World Health Organization) classification (2012). RESULTS A total of 980 cases was studied out of which 951 were females and 29 were males. The benign neoplasms constituted 329 cases (33.57 %), malignant neoplasms 521 cases (53.16 %) and non-neoplastic lesions 130 cases (13.26 %). In our study fibroadenoma was the most common benign neoplasm (n = 292) and fibrocystic disease formed the major population of non-neoplastic benign lesion (n = 66). Vast majority of cases with malignant neoplasms had invasive carcinoma of no special type (NST) (n = 479). Significantly higher incidence of malignancy was noted in the age group of 41 - 80 years and benign tumours were mostly seen in 2nd and 3rd decade. The ratio of malignant to benign lesions was slightly higher in our study. CONCLUSIONS Large number of carcinoma breast was seen in our study which is a serious concern. So, design and implementation of screening programs and control of the risk factors seem essential. This study emphasizes the importance of early and accurate histopathological diagnosis of breast lesions. KEYWORDS Neoplastic, Non-Neoplastic, Breast Lesions, Histopathology, Invasive Carcinoma Breast

The Mechanism of Lunasin's Effect on the Growth of Breast Cancer Cells Induced by Obesity-induced Inflammation

Impact ◽  
2020 ◽  
Vol 2020 (7) ◽  
pp. 16-18
Author(s):  
Chia-Chien Hsieh
Keyword(s):  
Breast Cancer ◽  
Cancer Cells ◽  
Breast Cancer Cells ◽  
Inflammatory Responses ◽  
Specific Area ◽  
Tumour Microenvironment ◽  
Associate Professor ◽  
World Health ◽  
Cancer Development ◽  
Breast Cancer Development

It has long been established that diet and nutrition can have a significant impact on health and even help reduce the prevalence of chronic diseases. It makes sense that what we put into our bodies would have some bearing on how our bodies function. Indeed, the World Health Organization developed guidelines focusing on nutrient intake, with a view to reducing the global burden of disease related to obesity, diabetes, cardiovascular disease, several forms of cancer, osteoporosis and dental disease. One exciting area of research, that is little understood, is the potential efficacy of lunasin – a peptide found in soy, legume and some cereal grains – against certain types of cancer. Lunasin has shown potential in the prevention of cancers. It is able to do this by suppressing the proliferation and migration of cancer cells, and anti-inflammation in this tumour environment. A specific area of study within this is lunasin's ability to reduce obesity associated breast cancer development. Associate Professor Chia-Chien Hsieh, a researcher based at the Programs of Nutrition Science, School of Life Science, National Taiwan Normal University, current work is focused on the mechanism of lunasin's effect on the growth of breast cancer cells induced by obesity-associated inflammation. Her goal is to investigate the obesity-related breast cancer chemoprevention of lunasin, which might retard inflammatory responses around tumour microenvironment and even break the crosstalk of macrophages, adipocyte, and breast cancer cells. The aim being to provide potential strategies for ameliorating obesity-related ER(+) or ER(-) breast cancer development.

scholarly journals Proteomic Analysis of Zeb1 Interactome in Breast Carcinoma Cells

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3143
Author(s):  
Sergey E. Parfenyev ◽  
Sergey V. Shabelnikov ◽  
Danila Y. Pozdnyakov ◽  
Olga O. Gnedina ◽  
Leonid S. Adonin ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Cells ◽  
Epithelial To Mesenchymal Transition ◽  
Critical Role ◽  
Malignant Neoplasm ◽  
Malignant Neoplasms ◽  
Breast Cancer Patients ◽  
Survival Prognosis ◽  
Mesenchymal Transition ◽  
Wide Range

Breast cancer is the most frequently diagnosed malignant neoplasm and the second leading cause of cancer death among women. Epithelial-to-mesenchymal Transition (EMT) plays a critical role in the organism development, providing cell migration and tissue formation. However, its erroneous activation in malignancies can serve as the basis for the dissemination of cancer cells and metastasis. The Zeb1 transcription factor, which regulates the EMT activation, has been shown to play an essential role in malignant transformation. This factor is involved in many signaling pathways that influence a wide range of cellular functions via interacting with many proteins that affect its transcriptional functions. Importantly, the interactome of Zeb1 depends on the cellular context. Here, using the inducible expression of Zeb1 in epithelial breast cancer cells, we identified a substantial list of novel potential Zeb1 interaction partners, including proteins involved in the formation of malignant neoplasms, such as ATP-dependent RNA helicase DDX17and a component of the NURD repressor complex, CTBP2. We confirmed the presence of the selected interactors by immunoblotting with specific antibodies. Further, we demonstrated that co-expression of Zeb1 and CTBP2 in breast cancer patients correlated with the poor survival prognosis, thus signifying the functionality of the Zeb1–CTBP2 interaction.

Optimized Mooring Line Simulation Using a Hybrid Method Time Domain Scheme

2014 ◽  
Author(s):  
Niels Hørbye Christiansen ◽  
Per Erlend Torbergsen Voie ◽  
Jan Høgsberg ◽  
Nils Sødahl
Keyword(s):  
Hybrid Method ◽  
Time Domain ◽  
Computation Time ◽  
Mooring Line ◽  
Mooring Lines ◽  
Fem Model ◽  
Input Variables ◽  
The Time Domain ◽  
The Cost ◽  
Short Time

Dynamic analyses of slender marine structures are computationally expensive. Recently it has been shown how a hybrid method which combines FEM models and artificial neural networks (ANN) can be used to reduce the computation time spend on the time domain simulations associated with fatigue analysis of mooring lines by two orders of magnitude. The present study shows how an ANN trained to perform nonlinear dynamic response simulation can be optimized using a method known as optimal brain damage (OBD) and thereby be used to rank the importance of all analysis input. Both the training and the optimization of the ANN are based on one short time domain simulation sequence generated by a FEM model of the structure. This means that it is possible to evaluate the importance of input parameters based on this single simulation only. The method is tested on a numerical model of mooring lines on a floating off-shore installation. It is shown that it is possible to estimate the cost of ignoring one or more input variables in an analysis.

The working of the urology department during the COVID-19 epidemic

2020 ◽  
Vol 10 (4) ◽  
pp. 301-307
Author(s):  
Ekaterina V. Kul’chavenya ◽  
Denis P. Kholtobin ◽  
Alexander I. Neymark
Keyword(s):  
Medical Center ◽  
Total Duration ◽  
World Health ◽  
Medical Attention ◽  
Malignant Neoplasms ◽  
City Hospital ◽  
Strict Adherence ◽  
Number Of Patients ◽  
Coronavirus Infection ◽  
Research Institute

Introduction. In March 2020, the World Health Organization declared the outbreak of the novel coronavirus infection (COVID-19) a pandemic. The pandemic also significantly affected all academic, scientific and educational activities. Material and methods. We compared the work of the urological departments of the private (Medical Center Avicenna, Novosibisk) and municipal (City Clinical Hospital No. 11, Barnaul) clinics, as well as the urogenital department of the Novosibirsk Research Institute of Tuberculosis of the Ministry of Healthcare of Russia for 6 months of calm 2019, and the first half of 2020, which coincided with the start of the COVID-19 coronavirus pandemic. Results. In March 2020, the urogenital department of the Novosibirsk Research Institute of Tuberculosis of the Ministry of Healthcare of Russia was redesigned into an observational one. In the first half of 2020, patients with malignant neoplasms, varicocele, chronic pyelonephritis, hydronephrosis, dropsy of the testicular membranes and with phimosis/paraphimosis were admitted to the urology department of the City Hospital No. 11 in Barnaul in the first half of 2020. On the contrary, statistically significant in 2020 the number of patients admitted for kidney abscess and acute prostatitis prevailed. It can be assumed that, due to the tense epidemic situation, patients postponed seeking medical attention until their condition required emergency intervention. In the Medical Center Avicenna (Novosibirsk) in the first half of 2020 the number of visits to the pediatric urologist significantly decreased, the inpatient and average bed-day decreased. On the contrary the total duration of the patients' stay in the day hospital has significantly increased, which is logically explained by the epidemic situation; there was a statistically significant decrease in the number of most operations and outpatient procedures. Conclusion. The new coronavirus infection has affected all spheres of human life, to a maximum extent on medicine. In the first six months, no unified approaches to the management of urological patients in epidemic conditions were developed; clinics worked according to internal standards. Our analysis showed that strict adherence to sanitary and hygienic standards and the implementation of anti-epidemic measures allows us to provide urological care to patients in full-even in such unfavorable conditions.

Mixed Adenocarcinomas of the Lung: Place in New Proposals in Classification, Mandatory for Target Therapy

2010 ◽  
Vol 134 (1) ◽  
pp. 55-65 ◽  
Author(s):  
Marco Chilosi ◽  
Bruno Murer
Keyword(s):  
Lung Cancer ◽  
Lung Adenocarcinoma ◽  
World Health Organization ◽  
Cell Biology ◽  
Small Cell ◽  
World Health ◽  
Malignant Neoplasms ◽  
New Classification ◽  
Therapeutic Decisions ◽  
Health Organization

Abstract Context.—Lung cancer is one of the most frequent and lethal malignant neoplasms, but knowledge regarding the molecular basis of its pathogenesis is far from complete due to the striking diversity of different forms. The current lung cancer classification (World Health Organization 2004) can efficiently distinguish clinically relevant major subtypes (small cell and non–small cell carcinomas), but its results are partly inadequate when facing prognostic and therapeutic decisions for non–small cell carcinomas, especially for the group of tumors classified as adenocarcinoma. Lung adenocarcinoma comprises a heterogeneous group of tumors characterized by diverse morphologic features and molecular pathogenesis. The category of mixed adenocarcinomas includes most adenocarcinomas (approximately 80%) and, according to World Health Organization criteria, is defined by the occurrence of a mixed array of different patterns (acinar, papillary, bronchioloalveolar, solid with mucin). The histologic recognition of mixed adenocarcinoma is subjective and cannot consistently discriminate between responders and nonresponders to new targeted therapies (eg, tyrosine kinase inhibitors). Diagnostic problems are mainly related to the poor reproducibility of histologic criteria, especially when applied in small biopsies and cytology, and to the difficulty in assigning each form to a precisely defined entity, as needed by updated therapeutic approaches. In this evolving scenario, pathologists face new challenging diagnostic roles that include not only the precise morphologic definition of carcinoma subtypes but also their molecular characterization. Objective.—To use a comprehensive critical analysis reconciling the overwhelming variety of biologic, morphologic, molecular, and clinical data to define new classification schemes for lung adenocarcinoma. Data Sources.—Scientific literature and personal data were used. Conclusions.—A new classification approach should redefine lung adenocarcinoma heterogeneity reconciling classic morphology, immunophenotypic and molecular features of neoplastic cells, and also relevant information provided by stem cell biology. This approach, which has been already successfully applied in World Health Organization classification of other tumors, could improve the recognition of new reproducible profiles for adenocarcinomas, more closely and reproducibly related to clinical features and response to specific therapies, limiting the use of “wastebasket” categories such as mixed adenocarcinoma.

To Determine the Prevalence of Obesity in Breast Cancer Patients

2021 ◽  
Keyword(s):  
Breast Cancer ◽  
Body Mass Index ◽  
Cancer Patients ◽  
Body Mass ◽  
Tertiary Care ◽  
Overweight And Obesity ◽  
World Health ◽  
Care Hospital ◽  
Breast Cancer Patients ◽  
Prevalence Of Obesity

Background: Breast Cancer is one of the leading causes of death worldwide. Pakistan alone has the highest rate of Breast Cancer than any other Asian country as approximately 90000 new cases are diagnosed every year out of which 40000 dies. Obesity is also a critical public health problem growing with every passing year in Pakistan and worldwide. Research studies are being conducted worldwide regarding the relation between the two problems. Objective: The objective of this study is to determine the prevalence of obesity in breast cancer patients in a tertiary care hospital in Karachi, Pakistan. Methods: BMI is used as a screening tool for overweight and obesity. According to World Health Organization, a body mass index (BMI) over 25 is considered overweight, and over 30 is obese. A retrospective analysis of 262 patients diagnosed with Breast Cancer during 2019 and 2020 was performed. Patients’ hospital records in Oncology were reviewed. The weight in kilograms and height in centimeters of patients were reviewed. Their BMI was calculated and recorded using the SPSS system. Results: The median BMI was 28.25 kg/m2 with an interquartile range of 25.15 - 31.99 kg/m2. Nearly 80% of the study participants had body mass index higher than normal levels (n=203, 77.5%) and out of them approximately half were overweight (n=104, 51.2%) and the remaining were obese (n=99, 48.7%). Conclusion: We conclude from our study that body mass index is positively correlated with breast cancer occurrence and thus the proportion of females having BMI >= 25 was significantly higher among patients.

scholarly journals Evaluation of women’s quality of life after breast reconstruction surgery

2020 ◽  
Vol 66 (2) ◽  
Author(s):  
Marta Stanisz ◽  
Ewelina Kolak ◽  
Dorota Branecka-Woźniak ◽  
Renata Robaszkiewicz-Boukaz ◽  
Przemysław Ciepiela ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Quality Of Life ◽  
Breast Reconstruction ◽  
Great Influence ◽  
Well Being ◽  
World Health ◽  
World Health Organization Quality ◽  
Reconstruction Surgery ◽  
The Impact

Introduction: Breast cancer is the most common malignancy among women, and is usually treated surgically. Mastectomy has a great influence on the mental and physical condition of women. Breast reconstruction offers them a chance to improve their quality of life (QOL) and self-image.The main aim of the study was to gain knowledge about the impact of breast reconstruction on the QOL of women following mastectomy, and an analysis of the QOL after breast reconstruction, in the context of prosthesis effect assessment.Materials and methods: The study comprised 100 women following breast reconstructive surgery involved in 1 of the 7 “Amazon Clubs” (post-mastectomy women’s associations) in the West Pomeranian Voivodeship, northwest Poland. The study was based on the author’s questionnaire, and a shortened standardized version of the World Health Organization Quality of Life-BREF (WHOQOL-BREF) questionnaire. Statistical calculations were performed with StatSoft Statistica v10 software, adopting a significance level of p < 0.05.Results: The women who decided to have breast reconstruction surgery, noticed improved well-being (67%) and experiencedan increase in self-confidence (61%). The vast majority ofthe patients surveyed (93%) were satisfied with the effectof the prosthesis. Statistically significant differences in QOL were observed in the following spheres: rest and sleep, work capacity, negative feelings, and financial resources (p < 0.05) in relation to the evaluation of the prosthesis effect.Conclusions: 1. Breast reconstruction has a positive influence on improvements in well-being, increasing self-esteem, and the assessment of a more attractive appearance in women of all ages. 2. Breast reconstruction surgery has a positive impact on QOL and health in the physical, psychological, and environmental domains, especially in the women who are satisfied with the effects of the surgery. 3. A negative assessment of the breast reconstruction effect has an adverse influence on QOL. Identifying the factors affecting dissatisfaction with the post-operative outcome is crucial for a complete understanding of the subject, and for implementing measures aimed at improving the QOL of these women.Keywords: quality of life; mastectomy; breast cancer; breast reconstruction; breast surgery.

scholarly journals The Effect of Health Literacy Counselling on Self-Care in Women after Mastectomy: a Randomized Clinical Trial

2020 ◽  
Vol 9 (1) ◽  
pp. 39-45
Author(s):  
Masoume Rastegar ◽  
Zohreh Mahmoodi ◽  
Sara Esmaelzadeh Saeieh ◽  
Nasibeh Sharifi ◽  
Kourosh Kabir
Keyword(s):  
Breast Cancer ◽  
Clinical Trial ◽  
Health Literacy ◽  
Intervention Group ◽  
Self Care ◽  
Essential Element ◽  
World Health ◽  
Control Group ◽  
Fars Province ◽  
The Mean

Introduction: Breast cancer has a high prevalence, constituting a major cause of mortality in women around the world. Health literacy has a vital role in the self-care of chronic diseases such as cancer and is an essential element in the ability of each person to engage with health promotion. The aim of this study was to determine effect of health literacy counselling on selfcare in women after mastectomy. Methods: This study is a randomized, controlled, clinical trial carried out on 72 women with breast cancer after mastectomy in Fars province. The eligible women entered the study using convenience sampling and were then divided into an intervention and a control group through randomized blocks of four. Health literacy questionnaire and self-care questionnaire were distributed among the participants before, immediately after and three weeks following the intervention. Data analysis was performed in SPSS ver.13. Results: The results showed no significant differences between the two groups in terms of their health literacy and self-care scores before the intervention (P=0.299 and 0.059). A comparison of the mean values showed a greater increase in the mean score of health literacy and score of selfcare immediately and three weeks after the intervention in the intervention group compared to the control group. Also, the mean score of the dimensions of self-care in chemotherapy increased over time in the intervention group. Conclusion: The findings of this study confirm the higher effectiveness of counseling with a health literacy approach on overall self-care in chemotherapy and all its dimensions.

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