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physical activity and cancer

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https://www.readbyqxmd.com/read/28454269/bone-marrow-derived-dendritic-cells-under-influence-of-experimental-breast-cancer-and-physical-activity
#1
Douglas R Abdalla, Bruno B M Gomes, Eddie F C Murta, Márcia A Michelin
Immune cells are required in the immune response against tumours, although sometimes without success. The present study aimed to investigate dendritic cell (DC) maturation in animals with induced immunosuppression that were subjected to physical activity (PA). Immunosuppression was induced using 7,12-dimethyl-benzanthracene (DMBA). A total of 56 Balb/c mice were divided into four groups, including the control group, non-DMBA administered/PA group (GII), DMBA administered/non-PA group (GIII) and the DMBA administered/PA group (GIV)...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453622/the-impact-of-exercise-on-cancer-mortality-recurrence-and-treatment-related-adverse-effects
#2
Prue Cormie, Eva M Zopf, Xiaochen Zhang, Kathryn H Schmitz
The combination of an increasing number of new cancer cases and improving survival rates has led to a large and rapidly growing population with unique health-care requirements. Exercise has been proposed as a strategy to help address the issues faced by cancer patients. Supported by a growing body of research, major health organizations commonly identify the importance of incorporating exercise in cancer care and advise patients to be physically active. This systematic review comprehensively summarizes the available epidemiologic and randomized controlled trial evidence investigating the role of exercise in the management of cancer...
April 27, 2017: Epidemiologic Reviews
https://www.readbyqxmd.com/read/28447602/spatial-computation-of-intratumoral-t-cells-correlates-with-survival-of-patients-with-pancreatic-cancer
#3
Julienne L Carstens, Pedro Correa de Sampaio, Dalu Yang, Souptik Barua, Huamin Wang, Arvind Rao, James P Allison, Valerie S LeBleu, Raghu Kalluri
The exact nature and dynamics of pancreatic ductal adenocarcinoma (PDAC) immune composition remains largely unknown. Desmoplasia is suggested to polarize PDAC immunity. Therefore, a comprehensive evaluation of the composition and distribution of desmoplastic elements and T-cell infiltration is necessary to delineate their roles. Here we develop a novel computational imaging technology for the simultaneous evaluation of eight distinct markers, allowing for spatial analysis of distinct populations within the same section...
April 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/28446206/cooperation-of-neurotrophin-receptor-trkb-and-her2-in-breast-cancer-cells-facilitates-brain-metastases
#4
Cecilia Choy, Khairul I Ansari, Josh Neman, Sarah Hsu, Matthew J Duenas, Hubert Li, Nagarajan Vaidehi, Rahul Jandial
BACKGROUND: Patients with primary breast cancer that is positive for human epidermal growth factor receptor 2 (Her2+) have a high risk of developing metastases in the brain. Despite gains with systemic control of Her2+ disease using molecular therapies, brain metastases remain recalcitrant to therapeutic discovery. The clinical predilection of Her2+ breast cancer cells to colonize the brain likely relies on paracrine mechanisms. The neural niche poses unique selection pressures, and neoplastic cells that utilize the brain microenvironment may have a survival advantage...
April 26, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28444534/metabolic-factors-anthropometric-measures-diet-and-physical-activity-in-long-term-breast-cancer-survivors-change-from-diagnosis-and-comparison-to-non-breast-cancer-controls
#5
Ana Elisa Lohmann, Marguerite Ennis, Sara K Taylor, Pamela J Goodwin
PURPOSE: We studied metabolic factors, diabetes, and anthropometric measurements at diagnosis and long-term follow-up (LTFU), mean 12.5 years post-diagnosis, in breast cancer (BC) survivors, and compared their status at LTFU to that of age-matched women without BC. Diet and physical activity were also assessed. METHOD: 535 non-diabetic BC patients treated at three University of Toronto hospitals were followed prospectively; 285 surviving patients, without distant recurrence, participated in a LTFU study...
April 25, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28444532/the-utrecht-cohort-for-multiple-breast-cancer-intervention-studies-and-long-term-evaluation-umbrella-objectives-design-and-baseline-results
#6
D A Young-Afat, C H van Gils, H J G D van den Bongard, H M Verkooijen
PURPOSE: In oncology, RCTs are often beset by slow recruitment, limited generalizability, and strong preferences for interventions by patients and physicians. The cohort multiple randomized controlled trial (cmRCT) is an innovative design with the potential to overcome those challenges. In cmRCT, a prospective cohort serves as an infrastructure for multiple RCTs. We implemented cmRCT in a clinical breast cancer setting by creating UMBRELLA-a large prospective cohort of breast cancer and DCIS patients/survivors...
April 25, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28443370/interrelationships-between-health-behaviors-and-coping-strategies-among-informal-caregivers-of-cancer-survivors
#7
Kristin Litzelman, Erin E Kent, Julia H Rowland
BACKGROUND: Recent research among cancer survivors suggests that health behaviors and coping are intertwined, with important implications for positive behavior change and health. Informal caregivers may have poor health behaviors, and caregivers' health behaviors have been linked to those of survivors. AIMS: This hypothesis generating study assessed the correlations among health behaviors and coping strategies in a population of lung and colorectal cancer caregivers...
April 1, 2017: Health Education & Behavior: the Official Publication of the Society for Public Health Education
https://www.readbyqxmd.com/read/28442076/exercise-training-for-people-following-curative-intent-treatment-for-non-small-cell-lung-cancer-a-randomized-controlled-trial
#8
Vinicius Cavalheri, Sue Jenkins, Nola Cecins, Kevin Gain, Martin J Phillips, Lucas H Sanders, Kylie Hill
OBJECTIVE: In people following curative intent treatment for non-small cell lung cancer, to investigate the effects of supervised exercise training on exercise capacity, physical activity and sedentary behavior, peripheral muscle force, health-related quality of life, fatigue, feelings of anxiety and depression, and lung function. METHOD: This pilot randomized controlled trial included participants 6-10 weeks after lobectomy for non-small cell lung cancer or, for those who required adjuvant chemotherapy, 4-8 weeks after their last cycle...
January 2017: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/28439866/mapping-protein-protein-interaction-using-high-throughput-yeast-2-hybrid
#9
Jessica Lopez, M Shahid Mukhtar
A tremendous asset to the analysis of protein-protein interactions is the yeast-2-hybrid (Y2H) method. The Y2H assay is a heterologous system that is expanding network biology knowledge via in vivo investigations of binary protein-protein interactions. Traditionally, the Y2H protocol entails the mating or co-transformation of yeast in solid agar media followed by visual analysis for diploid selection. Having played a key role in identifying protein-protein interactions for nearly three decades in a wide range of biological systems, the Y2H system assays the interaction between two proteins of interest which results in a reconstituted and/or activation of transcription factor allowing a reporter gene to be transcribed...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28439080/ets-related-gene-mediated-androgen-receptor-aggregation-and-endoplasmic-reticulum-stress-in-prostate-cancer-development
#10
Taduru L Sreenath, Shiela S Macalindong, Natallia Mikhalkevich, Shashwat Sharad, Ahmed Mohamed, Denise Young, Talaibek Borbiev, Charles Xavier, Rishita Gupta, Muhammad Jamal, Kevin Babcock, Shyh-Han Tan, Marja T Nevalainen, Albert Dobi, Gyorgy Petrovics, Isabell A Sesterhenn, Inger L Rosner, Charles J Bieberich, Peter Nelson, Valeri Vasioukhin, Shiv Srivastava
Mechanistic studies of deregulated ERG in prostate cancer and other cancers continue to enhance its role in cancer biology and its utility as a biomarker and therapeutic target. Here, we show that ERG, through its physical interaction with androgen receptor, induces AR aggregation and endoplasmic reticulum stress in the prostate glands of ERG transgenic mice. Histomorphological alterations and the expression of ER stress sensors Atf6, Ire1α, Perk, their downstream effectors Grp78/BiP and eIF2α in ERG transgenic mouse prostate glands indicate the presence of chronic ER stress...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28438275/psychophysical-health-status-of-breast-cancer-survivors-and-effects-of-12-weeks-of-aerobic-training
#11
Andrea Di Blasio, Teresa Morano, Ettore Cianchetti, Sabina Gallina, Ines Bucci, Serena Di Santo, Camilla Tinari, Francesco Di Donato, Pascal Izzicupo, Angela Di Baldassarre, Alessandra Cimini, Giorgio Napolitano
The aim of this study was to analyse the health status of breast cancer survivors and the effects of 12 weeks of aerobic training. Twenty-three breast cancer survivors (51.71 ± 3.17 years) and 23 healthy women (50.73 ± 2.97 years) were investigated for body composition, daily physical activity, quality of life, salivary cortisol, and DHEA-S. Breast cancer survivors were then aerobically trained for 12 weeks. Breast cancer survivors have a worse psychophysical health than healthy women. Aerobic training increased salivary DHEA-S, aerobic fitness, self-reported health, and nocturnal sleeping time and reduced salivary cortisol in breast cancer survivors...
May 2017: Complementary Therapies in Clinical Practice
https://www.readbyqxmd.com/read/28437753/p-gp-modulatory-acetyl-11-keto-%C3%AE-boswellic-acid-based-nanoemulsified-carrier-system-for-augmented-oral-chemotherapy-of-docetaxel
#12
Gitu Pandey, Naresh Mittapelly, Guru Raghavendra Valicherla, Ravi Prakash Shukla, Shweta Sharma, Venkatesh Teja Banala, Sandeep Urandur, Arun Kumar Jajoriya, Kalyan Mitra, D P Mishra, J R Gayen, P R Mishra
In spite of being a very potent and promising drug against many types of cancer, docetaxel suffers the disadvantage of low solubility and poor bioavailability rendering it unsuitable for oral administration. Also, the available marketed formulation for intravenous administration has its inherent drawbacks owing to the presence of polysorbate 80. Here, we exploited the anticancer and P-gp inhibitory potential of naturally occurring frankincense oil to fabricate a stable docetaxel loaded nanoemulsified carrier system for oral delivery...
April 15, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28436963/a-sting-activating-nanovaccine-for-cancer-immunotherapy
#13
Min Luo, Hua Wang, Zhaohui Wang, Haocheng Cai, Zhigang Lu, Yang Li, Mingjian Du, Gang Huang, Chensu Wang, Xiang Chen, Matthew R Porembka, Jayanthi Lea, Arthur E Frankel, Yang-Xin Fu, Zhijian J Chen, Jinming Gao
The generation of tumour-specific T cells is critically important for cancer immunotherapy. A major challenge in achieving a robust T-cell response is the spatiotemporal orchestration of antigen cross-presentation in antigen-presenting cells with innate stimulation. Here, we report a minimalist nanovaccine, comprising a simple physical mixture of an antigen and a synthetic polymeric nanoparticle, PC7A NP, which generates a strong cytotoxic T-cell response with low systemic cytokine expression. Mechanistically, the PC7A NP achieves efficient cytosolic delivery of tumour antigens to antigen-presenting cells in draining lymph nodes, leading to increased surface presentation while simultaneously activating type I interferon-stimulated genes...
April 24, 2017: Nature Nanotechnology
https://www.readbyqxmd.com/read/28436514/cpg-loaded-mos2-nanosheets-as-multifunctional-agents-for-photothermal-enhanced-cancer-immunotherapy
#14
Qiusen Han, Xinhuan Wang, Xinghang Jia, Shuangfei Cai, Wei Liang, Yan Qin, Rong Yang, Chen Wang
Single or few-layered MoS2 nanosheets, as a novel class of 2D nanomaterials, have received tremendous attention due to their fantastic physical and chemical properties. Here, we fabricated MoS2-PEG-CpG with a small and uniform size as a multifunctional platform for photothermal enhanced immunotherapy. MoS2 nanosheets were fabricated by chemical exfoliation and further probe sonication. To realize MoS2-based adjuvant delivery, MoS2 nanosheets were functionalized with cytosine-phosphate-guanine (CpG) and polyethylene glycol (PEG) to form MoS2-PEG-CpG nanoconjugates...
April 24, 2017: Nanoscale
https://www.readbyqxmd.com/read/28434726/short-communication-sensory-analysis-of-a-kefir-product-designed-for-active-cancer-survivors
#15
K O'Brien, C Boeneke, W Prinyawiwatkul, J Lisano, D Shackelford, K Reeves, M Christensen, R Hayward, K Carabante Ordonez, L K Stewart
Kefir is a fermented milk product that is a good source of protein and health-promoting bacteria. It has the potential to improve recovery from exercise, and the health and well-being of cancer survivors. The purpose of this study was to explore cancer survivor attitudes about and acceptance of a kefir recovery beverage made from cultured milk, whole fruit, natural sweeteners, and other natural ingredients. Kefir was made by inoculating and fermenting milk with kefir grains. The kefir was then mixed with a fruit base and given to cancer survivors (n = 52) following a bout of exercise...
April 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28434551/neuromuscular-fatigue-during-exercise-methodological-considerations-etiology-and-potential-role-in-chronic-fatigue
#16
REVIEW
Rosie Twomey, Saied Jalal Aboodarda, Renata Kruger, Susan Nicole Culos-Reed, John Temesi, Guillaume Y Millet
The term fatigue is used to describe a distressing and persistent symptom of physical and/or mental tiredness in certain clinical populations, with distinct but ultimately complex, multifactorial and heterogenous pathophysiology. Chronic fatigue impacts on quality of life, reduces the capacity to perform activities of daily living, and is typically measured using subjective self-report tools. Fatigue also refers to an acute reduction in the ability to produce maximal force or power due to exercise. The classical measurement of exercise-induced fatigue involves neuromuscular assessments before and after a fatiguing task...
April 20, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28433934/amino-acid-functionalized-gadofullerene-nanoparticles-with-superior-antitumor-activity-via-destruction-of-tumor-vasculature-in%C3%A2-vivo
#17
Yue Zhou, Ruijun Deng, Mingming Zhen, Jie Li, Mirong Guan, Wang Jia, Xue Li, Ying Zhang, Tong Yu, Toujun Zou, Zhigao Lu, Jun Guo, Lei Sun, Chunying Shu, Chunru Wang
Researchers have been puzzled of the therapy of malignant tumors and the current therapeutic strategies are always accompanied by toxicity or side effects. Developing efficient nanodrugs could reduce the dosage and greatly improve the therapeutic effects in cancer treatments. Here we initially reported a novel kind of gadofullerene nanoparticles functionalized with amino acid (β-alanine), which exhibited a superior antitumor activity in hepatoma H22 models via a novel therapeutic mechanism. The involvement of β-alanine improved the tumor inhibition rate up to 76...
April 14, 2017: Biomaterials
https://www.readbyqxmd.com/read/28433552/roscovitine-attenuates-intimal-hyperplasia-via-inhibiting-nf-%C3%AE%C2%BAb-and-stat3-activation-induced-by-tnf-%C3%AE-in-vascular-smooth-muscle-cells
#18
Ming He, Chao Wang, Jia-Huan Sun, Yu Liu, Hong Wang, Jing-Shan Zhao, Yun-Feng Li, Hong Chang, Jian-Ming Hou, Jun-Na Song, Ai-Ying Li, En-Sheng Ji
Roscovitine is a selective CDK inhibitor originally designed as anti-cancer agent, which has also been shown to inhibit proliferation in vascular smooth muscle cells (VSMCs). However, its effect on vascular remodeling and its mechanism of action remain unknown. In our study, we created a new intimal hyperplasia model in male Sprague-Dawley rats by trypsin digestion method, which cause to vascular injury as well as the model of rat carotid balloon angioplasty. Roscovitine administration led to a significant reduction in neointimal formation and VSMCs proliferation after injury in rats...
April 19, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28432494/primary-prevention-and-screening-practices-among-long-term-breast-cancer-survivors
#19
Lori Mandelzweig, Angela Chetrit, Tova Amitai, Barbara Silverman, Nava Siegelmann-Danieli, Siegal Sadetzki
PURPOSE: Parallel to increasing survival of breast cancer (BC) patients, a need has arisen to characterize the follow-up required to improve and maintain their health. Our study aimed to assess changes in lifestyle habits over time among the study population, compare compliance rates of selected primary and secondary prevention practices between long-term BC survivors and an age-matched comparison group, and identify factors associated with compliance to these practices. METHODS: The study population comprised 250 Israeli BC survivors, diagnosed with BC between 1999 and 2003, without evidence of disease after 8-12 years, and 250 women with no cancer history, individually matched to survivors by age and area of residence...
April 21, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28431509/regular-recreational-physical-activity-and-risk-of-head-and-neck-cancer
#20
Chen-Lin Lin, Wei-Ting Lee, Chun-Yen Ou, Jenn-Ren Hsiao, Cheng-Chih Huang, Jehn-Shyun Huang, Tung-Yiu Wong, Ken-Chung Chen, Sen-Tien Tsai, Sheen-Yie Fang, Tze-Ta Huang, Jiunn-Liang Wu, Yuan-Hua Wu, Wei-Ting Hsueh, Chia-Jui Yen, Yu-Hsuan Lai, Hsiao-Chen Liao, Shang-Yin Wu, Ming-Wei Yang, Forn-Chia Lin, Jang-Yang Chang, Yi-Hui Wang, Ya-Ling Weng, Han-Chien Yang, Yu-Shan Chen, Jeffrey S Chang
BACKGROUND: Although substantial evidence supports a 20-30% risk reduction of colon cancer, breast cancer, and endometrial cancer by physical activity (PA), the evidence for head and neck cancer (HNC) is limited. Three published studies on the association between PA and HNC have generated inconsistent results. The current study examined the association between recreational PA (RPA) and HNC risk with a more detailed assessment on the intensity, frequency, duration, and total years of RPA...
April 21, 2017: BMC Cancer
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