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https://www.readbyqxmd.com/read/27914159/-molecular-mechanisms-for-adhesion-and-colonization-of-human-gastric-mucosa-by-helicobacter-pylori-and-its-clinical-implications
#1
REVIEW
Elisabete Coelho, Ana Magalhães, Mário Dinis-Ribeiro, Celso A Reis
INTRODUCTION: Helicobacter pylori infection is very prevalent worldwide and is associated with the progression of the gastric carcinogenesis cascade, being one of the main risk factors for the development of gastric carcinoma. Several factors are determinant for the infection and for the development of gastric disease, including environmental factors, host genetic factors and virulence factors of the bacteria. MATERIAL AND METHODS: In this review, we present an overview of the current knowledge on the determinants of the infection and on the recently described molecular mechanisms of Helicobacter pylori adhesion to the gastric mucosa, as well as its possible future therapeutic application...
August 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/27913679/modelling-gtpase-dynamics-to-understand-rhoa-driven-cancer-cell-invasion
#2
REVIEW
Joseph H R Hetmanski, Jean-Marc Schwartz, Patrick T Caswell
Metastasis, initially driven by cells migrating and invading through the local environment, leads to most cancer-associated deaths. Cells can use a variety of modes to move in vitro, all of which depend on Rho GTPases at some level. While traditionally it was thought that Rac1 activity drives protrusive lamellipodia at the leading edge of a polarised cell while RhoA drives rear retraction, more recent work in 3D microenvironments has revealed a much more complicated picture of GTPase dynamics. In particular, RhoA activity can dominate the leading edge polymerisation of actin to form filopodial actin-spike protrusions that drive more invasive cell migration...
December 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27913498/long-term-risk-of-second-malignancy-and-cardiovascular-disease-after-hodgkin-lymphoma-treatment
#3
Flora E van Leeuwen, Andrea K Ng
Long-term survivors of Hodgkin lymphoma (HL) experience several late adverse effects of treatment, with second malignant neoplasms (SMNs) and cardiovascular diseases (CVDs) being the leading causes of death in these patients. Other late effects have also been identified, such as pulmonary dysfunction, endocrinopathies (thyroid dysfunction, infertility), neck muscle atrophy, and persistent fatigue. HL survivors have two- to fourfold increased risks to develop SMNs and CVD compared with the general population...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913448/targeting-inflammation-in-cancer-prevention-and-therapy
#4
REVIEW
Jelena Todoric, Laura Antonucci, Michael Karin
Inflammation is associated with the development and malignant progression of most cancers. As most of the cell types involved in cancer-associated inflammation are genetically stable and thus are not subjected to rapid emergence of drug resistance, the targeting of inflammation represents an attractive strategy both for cancer prevention and for cancer therapy. Tumor-extrinsic inflammation is caused by many factors, including bacterial and viral infections, autoimmune diseases, obesity, tobacco smoking, asbestos exposure, and excessive alcohol consumption, all of which increase cancer risk and stimulate malignant progression...
December 2016: Cancer Prevention Research
https://www.readbyqxmd.com/read/27913286/cytotoxic-activity-of-soy-phytoestrogen-coumestrol-against-human-breast-cancer-mcf-7%C3%A2-cells-insights-into-the-molecular-mechanism
#5
Atif Zafar, Swarnendra Singh, Imrana Naseem
Coumestrol is a phytoestrogen present in soybean products and recognized as potential cancer therapeutic agent against breast cancer. However, the clear molecular mechanism of anticancer-activity of coumestrol in breast carcinoma has not been reported. It is well established that copper levels are elevated in different malignancies. Therefore, the objective of this study was to investigate the copper-dependent cytotoxic action of coumestrol in human breast cancer MCF-7 cells. Results showed that coumestrol inhibited proliferation and induced apoptosis in MCF-7 cells, which was prevented by copper chelator neocuproine and ROS scavengers...
November 29, 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27913273/the-endocrine-vitamin-d-system-in-the-gut
#6
Antonio Barbáchano, Asunción Fernández-Barral, Gemma Ferrer-Mayorga, Alba Costales-Carrera, María Jesús Larriba, Alberto Muñoz
The active vitamin D metabolite 1α,25-dihydroxyvitamin D3 (1,25(OH)2D3) has important regulatory actions in the gut through endocrine and probably also intracrine, autocrine and paracrine mechanisms. By activating the vitamin D receptor (VDR), which is expressed at a high level in the small intestine and colon, 1,25(OH)2D3 regulates numerous genes that control gut physiology and homeostasis. 1,25(OH)2D3 is a major responsible for epithelial barrier function and calcium and phosphate absorption, and the host's defense against pathogens and the inflammatory response by several types of secretory and immune cells...
November 29, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/27913199/the-involvement-of-m2-macrophage-polarization-inhibition-in-fenretinide-mediated-chemopreventive-effects-on-colon-cancer
#7
Rong Dong, Yanling Gong, Wen Meng, Meng Yuan, Hong Zhu, Meidan Ying, Qiaojun He, Ji Cao, Bo Yang
Clinical studies have shown that fenretinide (4-HPR) is an attractive chemopreventive agent for cancer treatment. However, to date, few studies have demonstrated the mechanism of the preventive effect of 4-HPR. In our current study, we revealed that 4-HPR could significantly suppress IL-4/IL-13 induced M2-like polarization of macrophages, which was demonstrated by the reduced expression of M2 surface markers, the down-regulation of M2 marker genes, and the inhibition of M2-like macrophages promoted angiogenesis...
November 29, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27913066/prophylactic-treatment-with-a-potent-corticosteroid-cream-ameliorates-radiodermatitis-independent-of-radiation-schedule-a-randomized-double-blinded-study
#8
Eva Ulff, Marianne Maroti, Jörgen Serup, Mats Nilsson, Ursula Falkmer
BACKGROUND AND PURPOSE: The study will test the hypothesis that preventive topical steroid treatment instituted from start of radiotherapy can ameliorate acute radiation dermatitis. Subgroups of increased risk of dermatitis are included. MATERIAL AND METHODS: A double blinded randomized trial in patients with breast cancer receiving adjuvant radiotherapy (RT) after surgery. In total, 202 patients were randomized to betamethasone-17-valerate cream or Essex® cream, a moisturizer...
November 29, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/27912994/deconstructing-postmastectomy-syndrome-implications-for-physiatric-management
#9
REVIEW
Eric Wisotzky, Nicole Hanrahan, Thomas P Lione, Susan Maltser
Postmastectomy pain syndrome is a common sequela of breast cancer treatment that can lead to impairments and limited participation in work, recreational, and family roles. Pain can originate from multiple anatomic sites. A detailed evaluation to determine the specific cause or causes of pain will help guide the clinician to successfully manage this pain syndrome. There are many available treatments, but more evidence is needed for the efficacy of rehabilitation, pharmacologic, and nonpharmacologic therapy. There is evidence for some effective treatments to prevent this syndrome, but, here also, more research is needed...
February 2017: Physical Medicine and Rehabilitation Clinics of North America
https://www.readbyqxmd.com/read/27912937/honey-prevents-oral-mocositis-in-children-undergoing-chemotherapy-a-quasi-experimental-study-with-a-control-group
#10
Hacer Kobya Bulut, Fatma Güdücü Tüfekci
BACKGROUND: There are numerous pharmacological and non-pharmacological treatment options available in the treatment of oral mucositis. However, in spite of so many methods and products, medical professionals have not come to a consensus as to which of these offer the best results. OBJECTIVES: This study was conducted to assess the effect of oral care with honey on children undergoing chemotherapy for the prevention and healing of oral mucositis. METHODS: This quasi-experimental study was conducted on children undergoing chemotherapy...
December 2016: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/27912881/anti-metastatic-potential-of-resveratrol-and-its-metabolites-by-the-inhibition-of-epithelial-mesenchymal-transition-migration-and-invasion-of-malignant-cancer-cells
#11
REVIEW
Cho-Won Kim, Kyung-A Hwang, Kyung-Chul Choi
BACKGROUND: Increased epithelial-mesenchymal transition (EMT) and cell migration and invasion abilities of cancer cells play important roles in the metastatic process of cancer. Resveratrol is a stilbenoid, a type of natural polyphenol found in the skin of grapes, berries, and peanuts. A number of experiments have examined resveratrol's ability to target diverse pathways associated with carcinogenesis and cancer progression. PURPOSE: This article aims to present updated overview of the knowledge that resveratrol and its metabolites or analogs have the potential to inhibit metastasis of cancer via affecting many signaling pathways related with EMT, cancer migration, and invasion in diverse organs of the body...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27911932/chemical-and-cellular-assays-combined-with-in-vitro-digestion-to-determine-the-antioxidant-activity-of-flavonoids-from-chinese-bayberry-myrica-rubra-sieb-et-zucc-leaves
#12
Yu Zhang, Shiguo Chen, Chaoyang Wei, Hui Gong, Lanqi Li, Xingqian Ye
Oxidative stress is highly associated with the development of cardiovascular diseases and cancer and has drawn great attention. Natural products suggest a potential role in prevention of these disorders. The aim of this study was to investigate the antioxidant and anti-cancer properties of Chinese bayberry leaves (Myrica rubra Sieb. et Zucc.) flavonoids (BLF) comprehensively through the combination of in vitro digestion, chemical and cellular antioxidant assays. Based on the LC/MS data, the major flavonoids of BLF were myricitrin and quercetin 3-rhamnoside...
2016: PloS One
https://www.readbyqxmd.com/read/27911904/dressing-wear-time-after-breast-reconstruction-a-randomized-clinical-trial
#13
Daniela Francescato Veiga, Carlos Américo Veiga Damasceno, Joel Veiga-Filho, Luiz Francisley Paiva, Fernando Elias Martins Fonseca, Isaías Vieira Cabral, Natália Lana Larcher Pinto, Yara Juliano, Lydia Masako Ferreira
BACKGROUND: The evidence to support dressing standards for breast surgery wounds is empiric and scarce. OBJECTIVE: This two-arm randomized clinical trial was designed to assess the effect of dressing wear time on surgical site infection (SSI) rates, skin colonization and patient perceptions. METHODS: A total of 200 breast cancer patients undergoing breast reconstruction were prospectively enrolled. Patients were randomly allocated to group I (dressing removed on the first postoperative day, n = 100) or group II (dressing removed on the sixth postoperative day, n = 100)...
2016: PloS One
https://www.readbyqxmd.com/read/27911488/hepatocellular-carcinoma-as-an-emerging-morbidity-in-the-thalassemia-syndromes-a-comprehensive-review
#14
REVIEW
Hassan M Moukhadder, Racha Halawi, Maria Domenica Cappellini, Ali T Taher
The incidence of hepatocellular carcinoma (HCC) in patients with thalassemia is on the rise. The 2 well recognized HCC risk factors in thalassemia are iron overload and chronic viral infection with hepatitis C. The carcinogenicity of iron is related to its induction of oxidative damage, which results in genotoxicity, and to immunologic dysregulation, which attenuates cancer immune surveillance. Chronic hepatitis B and C infections lead to necroinflammation, which can prompt progression to HCC, but an independent role of hepatitis B virus in hepatic carcinogenesis among patients with thalassemia has not been demonstrated...
December 1, 2016: Cancer
https://www.readbyqxmd.com/read/27911450/uveal-melanoma-relatively-rare-but-deadly-cancer
#15
REVIEW
S Kaliki, C L Shields
Although it is a relatively rare disease, primarily found in the Caucasian population, uveal melanoma is the most common primary intraocular tumor in adults with a mean age-adjusted incidence of 5.1 cases per million per year. Tumors are located either in iris (4%), ciliary body (6%), or choroid (90%). The host susceptibility factors for uveal melanoma include fair skin, light eye color, inability to tan, ocular or oculodermal melanocytosis, cutaneous or iris or choroidal nevus, and BRCA1-associated protein 1 mutation...
December 2, 2016: Eye
https://www.readbyqxmd.com/read/27911269/the-matricellular-protein-cyr61-promotes-breast-cancer-lung-metastasis-by-facilitating-tumor-cell-extravasation-and-suppressing-anoikis
#16
Yu-Ting Huang, Qiang Lan, Girieca Lorusso, Nathalie Duffey, Curzio Rüegg
Matricellular proteins play multiple roles in primary tumor growth, local invasion and tumor angiogenesis. However, their contribution to metastasis and the putative mechanisms involved are less well characterized. In ER-negative human breast cancer, elevated expression levels of the matricellular protein Cysteine-rich angiogenic inducer 61 (CYR61) are associated with more aggressive progression. Here, we investigated the role of CYR61 in breast cancer lung metastasis using the triple negative human breast cancer cell lines MDA-MB-231 and SUM159...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27911235/robustness-of-the-neurological-prognostic-score-in-brain-metastasis-patients-treated-with-gamma-knife-radiosurgery
#17
Toru Serizawa, Yoshinori Higuchi, Osamu Nagano, Shinji Matsuda, Kyoko Aoyagi, Junichi Ono, Naokatsu Saeki, Yasuo Iwadate, Tatsuo Hirai, Shinya Takemoto, Yuta Shibamoto
OBJECTIVE The neurological prognostic score (NPS) was recently proposed as a means for predicting neurological outcomes, such as the preservation of neurological function and the prevention of neurological death, in brain metastasis patients treated with Gamma Knife radiosurgery (GKRS). NPS consists of 2 groups: Group A patients were expected to have better neurological outcomes, and Group B patients were expected to have poorer outcomes. NPS robustness was tested in various situations. METHODS In total, 3040 patients with brain metastases that were treated with GKRS were analyzed...
December 2, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27911088/african-american-women-s-perspectives-on-donating-healthy-breast-tissue-for-research-implications-for-recruitment
#18
Katherine E Ridley-Merriweather, Katharine J Head
African American women die of breast cancer at a higher rate than any other racial group. The Komen Tissue Bank (KTB) is an ongoing clinical trial that collects healthy breast tissue from women of all racial groups to use as controls in research and represents a critical tool in efforts to treat and prevent breast cancer; however, African Americans display reticence toward donating breast tissue to the KTB. Through the lens of the Integrated Behavioral Model, this study recruited African American women to share their perspectives on donating breast tissue for research purposes...
December 2, 2016: Health Communication
https://www.readbyqxmd.com/read/27911073/reducing-risky-alcohol-use-what-health-care-systems-can-do
#19
Amity E Quinn, Mary Brolin, Maureen T Stewart, Brooke Evans, Constance Horgan
Risky, non-dependent alcohol use is prevalent in the United States, affecting 25% of adults (Centers for Disease Control and Prevention, 2014b). Massachusetts has higher rates of alcohol use and binge drinking than most states (Substance Abuse and Mental Health Services Administration, 2015). Serious physical, social, and economic consequences result. Excessive alcohol use contributes to cancer, cardiovascular disease, sleep disorders, birth defects, motor vehicle injuries, and suicide, and it complicates management of chronic illnesses (Green, McKnight-Eily, Tan, Mejia, & Denny, 2016; Laramee et al...
April 27, 2016: Issue Brief
https://www.readbyqxmd.com/read/27910798/a-qualitative-study-of-women-who-experience-side-effects-from-human-papillomavirus-vaccination
#20
Tina Sørensen, Pernille Tanggaard Andersen
INTRODUCTION: In Denmark, vaccination against human papillomavirus (HPV) is offered to girls and women to prevent cervical cancer. Unfortunately, reporting of possible side effects from vaccination has increased in recent years. Therefore, the present study examine women's experiences of side effects from the HPV vaccine. METHODS: In-depth qualitative interviews were conducted with eight HPV-vaccinated Danish women, aged 25-44 years, who experienced side effects from the vaccine...
December 2016: Danish Medical Journal
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