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https://www.readbyqxmd.com/read/28474703/-risk-factors-associated-to-diffuse-gastric-cancer-and-intestinal-histological-patterns-in-an-adult-population-from-western-mexico
#1
Netzahualpilli Delgado-Figueroa, Paloma Casas-Junco, Juan Heriberto Torres-Jasso, Andrea Rebeca Bustos-Carpinteyro, Ernesto Santiago-Luna, María Eugenia Marín-Contreras, Josefina Yoaly Sánchez-López
INTRODUCTION: Gastric cancer (GC) is the third leading cause of cancer death worldwide, and is divided histologically in diffuse gastric cancer (DGC) and intestinal gastric cancer (IGC). Multiple risk factors have been associated with GC in different populations. The objective was to analyze the risk factors associated to DGC and IGC in a population from the western region of Mexico. MATERIAL AND METHODS: The DGC (n = 27) and IGC (n = 26) cases, each matched by age and sex with a control group, were analyzed...
March 2017: Gaceta Médica de México
https://www.readbyqxmd.com/read/28469386/epithelial-ovarian-cancer-diagnosis-of-second-harmonic-generation-images-a-semiautomatic-collagen-fibers-quantification-protocol
#2
Angel A Zeitoune, Johana Sj Luna, Kynthia Sanchez Salas, Luciana Erbes, Carlos L Cesar, Liliana Ala Andrade, Hernades F Carvahlo, Fátima Bottcher-Luiz, Victor H Casco, Javier Adur
A vast number of human pathologic conditions are directly or indirectly related to tissular collagen structure remodeling. The nonlinear optical microscopy second-harmonic generation has become a powerful tool for imaging biological tissues with anisotropic hyperpolarized structures, such as collagen. During the past years, several quantification methods to analyze and evaluate these images have been developed. However, automated or semiautomated solutions are necessary to ensure objectivity and reproducibility of such analysis...
2017: Cancer Informatics
https://www.readbyqxmd.com/read/28466461/high-flow-nasal-cannula-to-prevent-postextubation-respiratory-failure-in-high-risk-non-hypercapnic-patients-a-randomized-multicenter-trial
#3
Rafael Fernandez, Carles Subira, Fernando Frutos-Vivar, Gemma Rialp, Cesar Laborda, Joan Ramon Masclans, Amanda Lesmes, Luna Panadero, Gonzalo Hernandez
BACKGROUND: Extubation failure is associated with increased morbidity and mortality, but cannot be safely predicted or avoided. High-flow nasal cannula (HFNC) prevents postextubation respiratory failure in low-risk patients. OBJECTIVE: To demonstrate that HFNC reduces postextubation respiratory failure in high-risk non-hypercapnic patients compared with conventional oxygen. METHODS: Randomized, controlled multicenter trial in patients who passed a spontaneous breathing trial...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28454292/dna-vaccine-encoding-human-papillomavirus-antigens-flanked-by-a-signal-peptide-and-a-kdel-sequence-induces-a-potent-therapeutic-antitumor-effect
#4
Jose J Perez-Trujillo, Rodolfo Garza-Morales, Jose A Barron-Cantu, Gabriel Figueroa-Parra, Aracely Garcia-Garcia, Humberto Rodriguez-Rocha, Jaime Garcia-Juarez, Gerardo E Muñoz-Maldonado, Odila Saucedo-Cardenas, Roberto Montes-De-Oca-Luna, Maria De Jesus Loera-Arias
Cellular immune responses play a critical role in the eradication of intracellular infections and malignant cells through the recognition and subsequent removal of the infection or malignant cells. Effective antigen presentation is crucial for stimulating the immune system against malignant cells. Calreticulin (CRT) has been used to improve antigen presentation. However, CRT overexpression has been previously associated with the development of pancreatic and breast cancer. The import and retention signals of CRT in the endoplasmic reticulum (ER) can be used to overcome CRT overexpression...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28449403/effects-of-malnutrition-on-treatment-related-morbidity-and-survival-of-children-with-cancer-in-nicaragua
#5
Allison K Pribnow, Roberta Ortiz, Luis Fulgencio Báez, Luvy Mendieta, Sandra Luna-Fineman
BACKGROUND: Most children with cancer live in resource-limited countries where malnutrition is often prevalent. We identified the relationship between malnutrition and treatment-related morbidity (TRM), abandonment of therapy, and survival of children with cancer in Nicaragua to better inform targeted nutritional interventions. PROCEDURE: We conducted a retrospective review of patients aged 6 months to 18 years with newly diagnosed acute lymphoblastic leukemia, acute myeloid leukemia (AML), Wilms tumor, Hodgkin lymphoma, or Burkitt lymphoma (BL) who were treated between January 1, 2004, and December 31, 2007 at Children's Hospital Manuel de Jesus Rivera in Managua, Nicaragua...
April 27, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28432594/microrna-transfer-between-bone-marrow-adipose-and-multiple-myeloma-cells
#6
REVIEW
Luna Soley, Carolyne Falank, Michaela R Reagan
PURPOSE OF REVIEW: Multiple myeloma remains an incurable disease, largely due to the tumor-supportive role of the bone marrow microenvironment. Bone marrow adipose tissue (BMAT) is one component of the fertile microenvironment which is believed to contribute to myeloma progression and drug resistance, as well as participate in a vicious cycle of osteolysis and tumor growth. RECENT FINDINGS: MicroRNAs (miRNAs) have recently emerged as instrumental regulators of cellular processes that enable the development and dissemination of cancer...
April 21, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28423516/the-addition-of-celecoxib-improves-the-antitumor-effect-of-cetuximab-in-colorectal-cancer-role-of-egfr-ras-foxm1-%C3%AE-catenin-signaling-axis
#7
Araceli Valverde, Jon Peñarando, Amanda Cañas, Laura M López-Sánchez, Francisco Conde, Silvia Guil-Luna, Vanessa Hernández, Carlos Villar, Cristina Morales-Estévez, Juan de la Haba-Rodríguez, Enrique Aranda, Antonio Rodríguez-Ariza
Here we showed that the addition of the COX-2 inhibitor celecoxib improved the antitumor efficacy in colorectal cancer (CRC) of the monoclonal anti-EGFR antibody cetuximab. The addition of celecoxib augmented the efficacy of cetuximab to inhibit cell proliferation and to induce apoptosis in CRC cells. Moreover, the combination of celecoxib and cetuximab was more effective than either treatment alone in reducing the tumor volume in a mouse xenograft model. The combined treatment enhanced the inhibition of EGFR signaling and altered the subcellular distribution of β-catenin...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423236/improvement-in-treatment-abandonment-in-pediatric-patients-with-cancer-in-guatemala
#8
Elysia Alvarez, Midori Seppa, Silvia Rivas, Lucia Fuentes, Patricia Valverde, Federico Antillón-Klussmann, Mauricio Castellanos, E Alejandro Sweet-Cordero, Kevin Messacar, John Kurap, Marisol Bustamante, Scott C Howard, Bradley Efron, Sandra Luna-Fineman
BACKGROUND: Treatment refusal and abandonment are major causes of treatment failure for children with cancer in low- and middle-income countries (LMICs), like Guatemala. This study identified risk factors for and described the intervention that decreased abandonment. METHODS: This was a retrospective study of Guatemalan children (0-18 years) with cancer treated at the Unidad Nacional de Oncología Pediátrica (UNOP), 2001-2008, using the Pediatric Oncology Network Database...
April 19, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28408840/clinical-course-and-outcome-of-patients-with-high-level-microsatellite-instability-cancers-in-a-real-life-setting-a-retrospective-analysis
#9
Naama Halpern, Yael Goldberg, Luna Kadouri, Morasha Duvdevani, Tamar Hamburger, Tamar Peretz, Ayala Hubert
BACKGROUND: The prognostic and predictive significance of the high-level microsatellite instability (MSI-H) phenotype in various malignancies is unclear. We describe the characteristics, clinical course, and outcomes of patients with MSI-H malignancies treated in a real-life hospital setting. PATIENTS AND METHODS: A retrospective analysis of MSI-H cancer patient files was conducted. We analyzed the genetic data, clinical characteristics, and oncological treatments, including chemotherapy and surgical interventions...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28408123/rna-binding-proteins-in-female-reproductive-pathologies
#10
REVIEW
Kasra Khalaj, Jessica E Miller, Christian R Fenn, SooHyun Ahn, Rayana L Luna, Lindsey Symons, Stephany P Monsanto, Madhuri Koti, Chandrakant Tayade
RNA-binding proteins are key regulatory molecules involved primarily in post-transcriptional gene regulation of RNAs. Post-transcriptional gene regulation is critical for adequate cellular growth and survival. Recent reports have shown key interactions between these RNA-binding proteins and other regulatory elements, such as miRNAs and long noncoding RNAs, either enhancing or diminishing their response to RNA stabilization. Many RNA-binding proteins have been reported to play a functional role in mediation of cytokines involved in inflammation and immune dysfunction, and some have been classified as global post-transcriptional regulators of inflammation...
April 10, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28403142/melatonin-protects-rats-from-radiotherapy-induced-small-intestine-toxicity
#11
Beatriz Fernández-Gil, Ahmed E Abdel Moneim, Francisco Ortiz, Ying-Qiang Shen, Viviana Soto-Mercado, Miguel Mendivil-Perez, Ana Guerra-Librero, Darío Acuña-Castroviejo, María M Molina-Navarro, José M García-Verdugo, Ramy K A Sayed, Javier Florido, Juan D Luna, Luis Carlos López, Germaine Escames
Radiotherapy-induced gut toxicity is among the most prevalent dose-limiting toxicities following radiotherapy. Prevention of radiation enteropathy requires protection of the small intestine. However, despite the prevalence and burden of this pathology, there are currently no effective treatments for radiotherapy-induced gut toxicity, and this pathology remains unclear. The present study aimed to investigate the changes induced in the rat small intestine after external irradiation of the tongue, and to explore the potential radio-protective effects of melatonin gel...
2017: PloS One
https://www.readbyqxmd.com/read/28370199/anterior-intercostal-artery-perforator-flap-in-immediate-breast-reconstruction-anatomical-study-and-clinical-application
#12
Cristian Carrasco-López, Juan Francisco Julian Ibañez, Jordi Vilà, Miguel Angel Luna Tomás, Jordi Navinés López, Iciar Pascual Miguel, Jaime Fernandez-Llamazares-Rodriguez, Carmen Higueras-Suñe
BACKGROUND: Although the use of lateral intercostal artery perforator (ICAP) flaps for immediate breast reconstruction has been widely described, data on the use of the anterior ICAP (AICAP) flaps for this indication are limited. In this context, we describe the results of anatomical study and our clinical experience with AICAP flaps for breast reconstruction. METHODS: In this study, the location and characteristics of the AICAPs were dissected in 12 female adult formalin-preserved hemitrunks and two fresh-frozen cadavers...
March 28, 2017: Microsurgery
https://www.readbyqxmd.com/read/28287336/current-outlook-of-childhood-cancer-epidemiology-in-a-middle-income-country-under-a-public-health-insurance-program
#13
Roberto Rivera-Luna, Liliana Velasco-Hidalgo, Marta Zapata-Tarrés, Rocío Cárdenas-Cardos, Marco R Aguilar-Ortiz
In Mexico, childhood cancer (0-18 years) is treated in a multidisciplinary way while providing care for more than half of the affected children through a public medical insurance. This insurance is given to all children who do not have any health care coverage in Mexico. This program is offered to the poorest of all Mexicans. All the children with this disease are submitted to pathology diagnosis and treatment according to national treatment protocols from 57 accredited medical institutions. From 2007 to 2015, a total of 24,039 children with cancer have been registered; the male gender predominates by 55%...
February 2017: Pediatric Hematology and Oncology
https://www.readbyqxmd.com/read/28267006/gracilis-muscle-interposition-for-rectourethral-fistula-after-laparoscopic-prostatectomy-a-prospective-evaluation-and-long-term-follow-up
#14
Arantxa Muñoz-Duyos, Albert Navarro-Luna, Fernando Pardo-Aranda, Josep M Caballero, Pere Borrat, Carles Maristany, José A Pando, Enrique Veloso
BACKGROUND: Postoperative rectourethral fistula after radical prostatectomy is an infrequent but very serious problem. OBJECTIVE: We aimed to describe our experience with transperineal repair and unilateral gracilis muscle interposition in patients with rectourethral fistula after radical prostatectomy in nonradiated prostate cancer. DESIGN: This was a cohort study. SETTINGS: All of the procedures were performed at the same hospital by the same multidisciplinary team made up of a senior colorectal surgeon and a senior urologist...
April 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28244453/epidermal-growth-factor-receptor-expression-in-gastric-tumors-and-its-relationship-with-the-germline-polymorphisms-216-g-t-191-c-a-ca-n-ivs1-and-r521k
#15
J H Torres-Jasso, A R Bustos-Carpinteyro, J R Garcia-Gonzalez, J Peregrina-Sandoval, J A Cruz-Ramos, E Santiago-Luna, J Y Sanchez-Lopez
BACKGROUND: Gastric cancer (GC) is the third worldwide leading cause of cancer-related death affecting both sexes. The aberrant expression of epidermal growth factor receptor (EGFR) gene has been detected in many human epithelial malignancies and linked to advanced disease, more aggressive phenotype, and poor prognosis. AIMS: To analyze the relation that the expression of EGFR in gastric tumors holds with pathological characteristics and with the germline polymorphisms -216 G>T, -191 C>A, (CA) n IVS1, and R521K...
July 2016: Indian Journal of Cancer
https://www.readbyqxmd.com/read/28236750/targeting-nk-cell-checkpoints-for-cancer-immunotherapy
#16
REVIEW
Aura Muntasell, Maria C Ochoa, Luna Cordeiro, Pedro Berraondo, Ascension López-Díaz de Cerio, Mariona Cabo, Miguel López-Botet, Ignacio Melero
Natural Killer (NK) cells are cytotoxic lymphocytes specialized in early defense against virus-infected and transformed cells. NK-cell function is regulated by activating and inhibitory surface receptors recognizing their ligands on transformed cells. Modulation of NK numbers and/or function by a variety of agents such as cytokines and monoclonal antibodies may result in enhanced anti-tumor activity. Recombinant cytokines (i.e., IL-15 and IL-2), antibodies blocking inhibitory receptors (i.e., KIR, NKG2A and TIGIT) and agonists delivering signals via CD137, NKG2D and CD16 stand out as the most suitable opportunities...
February 22, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28193503/clinical-translation-of-a-psma-inhibitor-for-99m-tc-based-spect
#17
Guillermina Ferro-Flores, Myrna Luna-Gutiérrez, Blanca Ocampo-García, Clara Santos-Cuevas, Erika Azorín-Vega, Nallely Jiménez-Mancilla, Emmanuel Orocio-Rodríguez, Jenny Davanzo, Francisco O García-Pérez
BACKGROUND: Prostate-specific membrane antigen (PSMA) is highly over-expressed in advanced prostate cancers. (68)Ga-labeled PSMA inhibitors (iPSMA) are currently used for prostate cancer detection by PET imaging. The availability of simple, efficient and reproducible radiolabeling procedures is essential for developing new SPECT radiopharmaceuticals for clinical translation. The aim of this research was to prepare (99m)Tc-EDDA/HYNIC-Lys(Nal)-Urea-Glu ((99m)Tc-EDDA/HYNIC-iPSMA) obtained from lyophilized kit formulations and evaluate the in vitro and in vivo radiopharmaceutical binding to prostate cancer cells over-expressing PSMA, as well as the (99m)Tc-EDDA/HYNIC-iPSMA normal biodistribution in humans and the preliminary uptake in patients with prostate cancer...
February 3, 2017: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/28143957/insights-into-the-pathological-mechanisms-of-p85%C3%AE-mutations-using-a-yeast-based-phosphatidylinositol-3-kinase-model
#18
María D Oliver, Teresa Fernández-Acero, Sandra Luna, Isabel Rodríguez-Escudero, María Molina, Rafael Pulido, Víctor J Cid
In higher eukaryotes, cell proliferation is regulated by class I phosphatidylinositol 3-kinase (PI3K), which transduces stimuli received from neighboring receptors by local generation of PtdIns(3,4,5)P3 in cellular membranes. PI3K is a heterodimeric protein consisting of a regulatory and a catalytic subunit (p85 and p110 respectively). Heterologous expression of p110α in Saccharomyces cerevisiae leads to toxicity by conversion of essential PtdIns(4,5)P2 into futile PtdIns(3,4,5)P3, providing a humanized yeast model for functional studies on this pathway...
April 30, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28138156/antibody-dependent-cell-cytotoxicity-immunotherapy-strategies-enhancing-effector-nk-cells
#19
REVIEW
Maria Carmen Ochoa, Luna Minute, Inmaculada Rodriguez, Saray Garasa, Elisabeth Perez-Ruiz, Susana Inogés, Ignacio Melero, Pedro Berraondo
Antibody-dependent cellular cytotoxicity (ADCC) is a set of mechanisms that target cells coated with IgG antibodies of the proper subclasses (IgG1 in the human) to be the prey of cell-to-cell cytolysis executed by immune cells expressing FcRIIIA (CD16A). These effectors include not only natural killer (NK) cells but also other CD16(+) subsets such as monocyte/macrophages, NKT cells or γδ T cells. In cancer therapy, ADCC is exploited by antibodies that selectively recognize proteins on the surface of malignant cells...
April 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28130850/demethylating-and-anti-hepatocarcinogenic-potential-of-hesperidin-a-natural-polyphenol-of-citrus-juices
#20
Zahira Fernández-Bedmar, Jaouad Anter, Angeles Alonso-Moraga, Juana Martín de Las Mulas, Yolanda Millán-Ruiz, Silvia Guil-Luna
Hepatocellular carcinoma (HCC) is a neoplasia representing the fifth most common malignancy worldwide and the third cause of death from cancer. Diets with high content in fruits and vegetables are widely recommended for their health-promoting properties, among them, the protection against diabetes, cancer, and cardiovascular diseases. Hesperidin is the most important phenol in the orange fruit with well-known health benefits. Diet components have been used as possible modulator agents of DNA methylation in cancer cells and epigenetic therapy against their harmful effects could be a potential tool in chemotherapy...
June 2017: Molecular Carcinogenesis
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