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https://www.readbyqxmd.com/read/28441730/regulatory-mirnas-in-colorectal-carcinogenesis-and-metastasis
#1
REVIEW
Yongchen Guo, Yonghua Bao, Wancai Yang
Colorectal cancer is one of the most common malignancies and is the second-leading cause of cancer-related death world-wide, which is linked to genetic mutations, epigenetic alterations, and oncogenic signaling activation. MicroRNAs, one of the categories of epigenetics, have been demonstrated significant roles in carcinogenesis and progression through regulating of oncogenic signaling pathways, stem cells, epithelial-mesenchymal transition, and metastasis. This review summarizes the roles of microRNAs in the regulating of Wnt, Ras, TGF-β, and inflammatory signaling pathways, stemness, and epithelial-mesenchymal transition, for carcinogenesis and metastasis in colorectal cancer...
April 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28441155/do-triglyceride-lowering-drugs-decrease-risk-of-cardiovascular-disease
#2
Kevin C Maki, Mary R Dicklin
PURPOSE OF REVIEW: This review summarizes the evidence supporting a relationship between lowering triglycerides (TGs) and TG-rich lipoprotein cholesterol (TGRL-C) levels and reduced atherosclerotic cardiovascular disease (ASCVD) event risk. RECENT FINDINGS: Data from observational investigations, including studies of genetic variants, provide evidence consistent with a causal relationship between elevations in TG and TGRL-C and greater risk for ASCVD. Randomized controlled trial evidence of ASCVD risk reduction with therapies that substantially lower TG and TGRL-C is limited by the fact that no large-scale trial results have been published from a study that enrolled subjects selected specifically on the basis of TG or TGRL-C elevation, although three such trials are underway or in the planning stages...
April 22, 2017: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/28441138/employing-rna-viruses-to-fight-cancer-novel-insights-into-oncolytic-virotherapy
#3
Dörthe Masemann, Yvonne Boergeling, Stephan Ludwig
Within the last decades, viruses that specifically target tumor cells have emerged as novel therapeutic agents against cancer. These viruses do not only act via their cell-lytic properties, but also harbor immunostimulatory features to re-direct the tumor-microenvironment and stimulate tumor-directed immune responses. Furthermore, oncolytic viruses are considered to be superior to classical cancer therapies due to higher selectivity towards tumor cell destruction and, consequently, less collateral damage of non-transformed healthy tissue...
April 25, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/28440853/antibiotic-strategies-for-eradicating-pseudomonas-aeruginosa-in-people-with-cystic-fibrosis
#4
REVIEW
Simon C Langton Hewer, Alan R Smyth
BACKGROUND: Respiratory tract infection with Pseudomonas aeruginosa occurs in most people with cystic fibrosis. Once chronic infection is established, Pseudomonas aeruginosa is virtually impossible to eradicate and is associated with increased mortality and morbidity. Early infection may be easier to eradicate.This is an update of a Cochrane review first published in 2003, and previously updated in 2006, 2009 and 2014. OBJECTIVES: To determine whether antibiotic treatment of early Pseudomonas aeruginosa infection in children and adults with cystic fibrosis eradicates the organism, delays the onset of chronic infection, and results in clinical improvement...
April 25, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28440027/the-crispr-cas9-system-their-delivery-in-vivo-and-ex-vivo-applications-and-clinical-development-by-startups
#5
REVIEW
Minjung Song
The CRISPR/Cas9 gene editing system was originally derived from the prokaryotic adaptive immune system mediated by Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) and CRISPR-associated proteins (Cas). The system has been successfully applied to genome editing in eukaryotes and has contributed to remarkable advances in the life sciences, in areas ranging from agriculture to genetic disease therapies. For efficient editing and extending the influence of this system, proper delivery of its components is crucial...
April 25, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/28439797/desmoid-type-fibromatosis-who-when-and-how-to-treat
#6
REVIEW
Javier Martínez Trufero, Isabel Pajares Bernad, Irene Torres Ramón, Jorge Hernando Cubero, Roberto Pazo Cid
Desmoid-type fibromatosis is a sarcoma subtype that gathers some singular characteristics, making it a difficult challenge to face in clinical practice. Despite its excellent survival prognosis, these tumors may be unpredictable, ranging from an asymptomatic indolent course to persistent, local, and extended recurrences that significantly impair quality of life. Although surgery was initially considered the first elective treatment, collected published data during the past few years are now pointing to the "wait and see" approach as a reasonable initial strategy because many patients can live a long life with the disease without having symptoms...
May 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28439535/a-murine-preclinical-syngeneic-transplantation-model-for-breast-cancer-precision-medicine
#7
Lorenzo Federico, Zechen Chong, Dong Zhang, Daniel J McGrail, Wei Zhao, Kang Jin Jeong, Christopher P Vellano, Zhenlin Ju, Mihai Gagea, Shuying Liu, Shreya Mitra, Jennifer B Dennison, Philip L Lorenzi, Robert Cardnell, Lixia Diao, Jing Wang, Yiling Lu, Lauren A Byers, Charles M Perou, Shiaw-Yih Lin, Gordon B Mills
We previously demonstrated that altered activity of lysophosphatidic acid in murine mammary glands promotes tumorigenesis. We have now established and characterized a heterogeneous collection of mouse-derived syngeneic transplants (MDSTs) as preclinical platforms for the assessment of personalized pharmacological therapies. Detailed molecular and phenotypic analyses revealed that MDSTs are the most heterogeneous group of genetically engineered mouse models (GEMMs) of breast cancer yet observed. Response of MDSTs to trametinib, a mitogen-activated protein kinase (MAPK) kinase inhibitor, correlated with RAS/MAPK signaling activity, as expected from studies in xenografts and clinical trials providing validation of the utility of the model...
April 2017: Science Advances
https://www.readbyqxmd.com/read/28439040/the-impact-of-membrane-phospholipid-alterations-in-escherichia-coli-on-cellular-function-and-bacterial-stress-adaptation
#8
Veronica W Rowlett, Venkata K P S Mallampalli, Anja Karlstaedt, William Dowhan, Heinrich Taegtmeyer, William Margolin, Heidi Vitrac
Bacteria have evolved multiple strategies to sense and rapidly adapt to challenging and ever-changing environmental conditions. The ability to alter membrane lipid composition, a key component of the cellular envelope, is crucial for bacterial survival and adaptation in response to environmental stress. However, the precise roles played by membrane phospholipids in bacterial physiology and stress adaptation are not fully elucidated. The goal of this study was to define the role of membrane phospholipids in adaptation to stress and maintenance of bacterial cell fitness...
April 24, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28438772/severe-vincristine-induced-polyneuropathy-in-a-teenager-with-anaplastic-medulloblastoma-and-undiagnosed-charcot-marie-tooth-disease
#9
Yasmin Aghajan, Janet M Yoon, John Ross Crawford
Severe neuropathy is a known adverse effect of vincristine in patients with Charcot-Marie-Tooth disease (CMT). We present the case of a 16-year-old girl with anaplastic medulloblastoma treated with gross total resection and high-dose craniospinal radiation with adjuvant vincristine chemotherapy who developed acute-onset severe quadriplegia and vocal cord paralysis. Vincristine and radiation therapy were discontinued. Although her neuropathy slowly improved over several weeks, she developed metastatic extraneural medulloblastoma and died 5 months after diagnosis...
April 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28438693/effects-of-four-novel-genetic-polymorphisms-on-clopidogrel-efficacy-in-chinese-acute-coronary-syndromes-patients
#10
Fei-Yan Xiao, Min Liu, Bi-Lian Chen, Shan Cao, Lan Fan, Zhao-Qian Liu, Hong-Hao Zhou, Wei Zhang, Gan Zhou
Dual antiplatelet therapy is the gold standard for the clinical treatment of coronary artery disease, especially for acute coronary syndromes patients. However, a substantial number of patients do not respond to clopidogrel despite a standardized dosage regimen, and this is directly associated with poor prognosis. Genetic polymorphisms may be one of the most important factors that contribute to this phenomenon. In this study, we aimed to detect new single nucleotide polymorphisms that can influence the efficacy of clopidogrel in 851 acute coronary syndromes (ACS) patients...
April 21, 2017: Gene
https://www.readbyqxmd.com/read/28438568/a-novel-mutation-in-pmrb-mediates-colistin-resistance-during-therapy-of-acinetobacter-baumannii
#11
Elias Dahdouh, Rosa Gómez-Gil, Sonia Sanz, Bruno González-Zorn, Ziad Daoud, Jesús Mingorance, Monica Suárez
Acinetobacter baumannii is a highly versatile nosocomial pathogen. Multidrug resistance among A. baumannii isolates led to the use of colistin, subsequently giving rise to colistin-resistant strains. In this study, the genetic and phenotypic profiles of two colistin-resistant A. baumannii isolates were investigated. Two A. baumannii isolates were obtained from Patient 1 (C071 and C440) and three isolates were obtained from Patient 2 (C080, C314 and C428). Susceptibility profiles were determined by VITEK(®)2 and Etest...
April 21, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28438482/manufacture-and-preparation-of-human-placenta-derived-mesenchymal-stromal-cells-for-local-tissue-delivery
#12
Lee Lankford, Y Julia Chen, Zoe Saenz, Priyadarsini Kumar, Connor Long, Diana Farmer, Aijun Wang
BACKGROUND: In this study we describe the development of a Current Good Manufacturing Practice (CGMP)-compliant process to isolate, expand and bank placenta-derived mesenchymal stromal cells (PMSCs) for use as stem cell therapy. We characterize the viability, proliferation and neuroprotective secretory profile of PMSCs seeded on clinical-grade porcine small intestine submucosa extracellular matrix (SIS-ECM; Cook Biotech). METHODS: PMSCs were isolated from early gestation placenta chorionic villus tissue via explant culture...
April 21, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28438095/arcobacter-an-emerging-food-borne-zoonotic-pathogen-its-public-health-concerns-and-advances-in-diagnosis-and-control-a-comprehensive-review
#13
Thadiyam Puram Ramees, Kuldeep Dhama, Kumaragurubaran Karthik, Ramswaroop Singh Rathore, Ashok Kumar, Mani Saminathan, Ruchi Tiwari, Yashpal Singh Malik, Raj Kumar Singh
Arcobacter has emerged as an important food-borne zoonotic pathogen, causing sometimes serious infections in humans and animals. Newer species of Arcobacter are being incessantly emerging (presently 25 species have been identified) with novel information on the evolutionary mechanisms and genetic diversity among different Arcobacter species. These have been reported from chickens, domestic animals (cattle, pigs, sheep, horses, dogs), reptiles (lizards, snakes and chelonians), meat (poultry, pork, goat, lamb, beef, rabbit), vegetables and from humans in different countries...
April 25, 2017: Veterinary Quarterly
https://www.readbyqxmd.com/read/28437377/microrna-21-is-required-for-local-and-remote-ischemic-preconditioning-in-multiple-organ-protection-against-sepsis
#14
Ping Jia, Xiaoli Wu, Yan Dai, Jie Teng, Yi Fang, Jiachang Hu, Jianzhou Zou, Mingyu Liang, Xiaoqiang Ding
OBJECTIVE: Sepsis, triggered by microbial infection, is a common and life-threatening systemic illness, often leads to impaired function of vital organs. Ischemic preconditioning induced by transient brief episodes of ischemia is a powerful innate mechanism of organ protection. We have reported that a 15-minute renal ischemic preconditioning substantially attenuated subsequent renal ischemia-reperfusion injury. Here, we investigate whether a brief ischemia and reperfusion in kidney can provide protection at local and remote sites against sepsis-induced organ injury, and whether this protection is microRNA-21 dependent...
April 21, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28437162/adjuvant-systemic-therapy-and-adjuvant-radiation-therapy-for-stage-i-to-iiia-completely-resected-non-small-cell-lung-cancers-american-society-of-clinical-oncology-cancer-care-ontario-clinical-practice-guideline-update
#15
Mark G Kris, Laurie E Gaspar, Jamie E Chaft, Erin B Kennedy, Christopher G Azzoli, Peter M Ellis, Steven H Lin, Harvey I Pass, Rahul Seth, Frances A Shepherd, David R Spigel, John R Strawn, Yee C Ung, Michael Weyant
Purpose The panel updated the American Society of Clinical Oncology (ASCO) adjuvant therapy guideline for resected non-small-cell lung cancers. Methods ASCO convened an update panel and conducted a systematic review of the literature, investigating adjuvant therapy in resected non-small-cell lung cancers. Results The updated evidence base covered questions related to adjuvant systemic therapy and included a systematic review conducted by Cancer Care Ontario current to January 2016. A recent American Society for Radiation Oncology guideline and systematic review, previously endorsed by ASCO, was used as the basis for recommendations for adjuvant radiation therapy...
April 24, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28435994/thalassemia-minor-and-major-%C3%A2-current-management
#16
REVIEW
Ved Prakash Choudhry
Thalassemia is a common genetic disorder. It has been estimated that in India nearly 5 crore people are thalassemia carriers. They are asymptomatic and are detected on blood tests. These people are at same risk of developing iron deficiency anemia as general population and need iron therapy in the presence of iron deficiency anemia. Nearly 12,000 children with thalassemia major (Homozygous state) are born every year. These children often present with significant anemia along with hepatosplenomegaly during infancy and require early diagnosis and institution of therapy with repeated blood transfusions and chelation therapy...
April 24, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28435450/exome-sequencing-of-oral-squamous-cell-carcinoma-reveals-molecular-subgroups-and-novel-therapeutic-opportunities
#17
Shih-Chi Su, Chiao-Wen Lin, Yu-Fan Liu, Wen-Lang Fan, Mu-Kuan Chen, Chun-Ping Yu, Wei-En Yang, Chun-Wen Su, Chun-Yi Chuang, Wen-Hsiung Li, Wen-Hung Chung, Shun-Fa Yang
Oral squamous cell carcinoma (OSCC), an epithelial malignancy affecting a variety of subsites in the oral cavity, is prevalent in Asia. The survival rate of OSCC patients has not improved over the past decades due to its heterogeneous etiology, genetic aberrations, and treatment outcomes. Improvement in therapeutic strategies and tailored treatment options is an unmet need. To unveil the mutational spectrum, whole-exome sequencing of 120 OSCC from male individuals in Taiwan was conducted. Analyzing the contributions of the five mutational signatures extracted from the dataset of somatic variations identified four groups of tumors that were significantly associated with demographic and clinical features...
2017: Theranostics
https://www.readbyqxmd.com/read/28435308/association-of-the-ppp3ca-c-249g-a-variant-with-clinical-outcomes-of-tacrolimus-based-therapy-in-kidney-transplant-recipients
#18
Patricia C Salgado, Fabiana Dv Genvigir, Claudia R Felipe, Helio Tedesco-Silva, Jose O Medina-Pestana, Sonia Q Doi, Mario H Hirata, Rosario Dc Hirata
BACKGROUND: The effects of genetic variants related to the pharmacodynamic mechanisms of immunosuppressive drugs on their therapeutic efficacy and safety have been poorly explored. This study was performed to investigate the influence of the PPP3CA c.249G>A variant on the clinical outcomes of kidney transplant recipients. PATIENTS AND METHODS: A total of 148 Brazilian patients received tacrolimus (TAC)-based immunosuppressive therapy for 90 days post-kidney transplantation...
2017: Pharmacogenomics and Personalized Medicine
https://www.readbyqxmd.com/read/28434655/apolipoprotein-e-receptors-and-modulation-of-alzheimer-s-disease
#19
REVIEW
Na Zhao, Chia-Chen Liu, Wenhui Qiao, Guojun Bu
Apolipoprotein E (apoE) is a lipid carrier in both the peripheral and the central nervous systems. Lipid-loaded apoE lipoprotein particles bind to several cell surface receptors to support membrane homeostasis and injury repair in the brain. Considering prevalence and relative risk magnitude, the ε4 allele of the APOE gene is the strongest genetic risk factor for late-onset Alzheimer's disease (AD). ApoE4 contributes to AD pathogenesis by modulating multiple pathways, including but not limited to the metabolism, aggregation, and toxicity of amyloid-β peptide, tauopathy, synaptic plasticity, lipid transport, glucose metabolism, mitochondrial function, vascular integrity, and neuroinflammation...
March 14, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28434587/aligning-physiology-with-psychology-translational-neuroscience-in-neuropsychiatric-drug-discovery
#20
REVIEW
Robert A McArthur
This review presents an overview of some of the pre-clinical and clinical issues that have contributed to the failures of potential novel neuropsychiatric drugs, which have prompted a re-examination of the role of animal models of neuropsychiatric disorders. Advances both in basic neuroscience and technology have driven the development of animal models of aspects of neuropsychiatric disorders. Genetics and environmental factors have been the primary contributors to the development of new animal models. Neuroimaging has contributed to the search for biomarkers by which neuropsychiatric disorders may be identified and differentiated, its progression monitored and that the effects of therapy assessed...
May 2017: Neuroscience and Biobehavioral Reviews
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