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https://www.readbyqxmd.com/read/28823141/targeted-therapy-of-ovarian-cancer-including-immune-check-point-inhibitor
#1
Jin Young Kim, Chi Heum Cho, Hong Suk Song
Epithelial ovarian cancer is the eighth most common cause of cancer-related deaths in women because most patients present with advanced stage disease at the time of diagnosis. Although cytoreductive surgery and platinum-based chemotherapy remain the gold standards of treatment, the recurrence rate of ovarian cancer remains high. Attempts to improve this standard two-drug chemotherapy by adding a third cytotoxic drug have failed to affect either progression-free survival or overall survival and have resulted in an increase in toxic side effects...
August 22, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28823104/novel-polymeric-composites-based-on-carboxymethyl-chitosan-and-poly-acrylic-acid-in-vitro-and-in-vivo-evaluation
#2
Qurat-Ul-Ain Sharif, Muhammad Sohail, Mahmood Ahmad, Muhammad Usman Minhas, Shahzeb Khan, Samiullah Khan, Mubeen Kousar
The purpose of the study was to develop a novel, efficient, stable, chemically crosslinked polymeric system that have pH responsive behaviour and can effectively release 5-FU in a controlled manner. Furthermore it can target colonic cancer minimizing the side effects of in vivo chemotherapy via 5-FU. Swelling and drug release studies were performed to evaluate its in vitro release behaviour. Hydrogels were also characterized by FTIR, SEM and DSC. In vitro cytocompatibility and cytotoxicity of the hydrogels were determined by MTT assay using HeLa cells...
August 19, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28823093/candida-albicans-staphylococcus-aureus-dual-species-biofilm-as-a-target-for-the-combination-of-essential-oils-and-fluconazole-or-mupirocin
#3
Aleksandra Budzyńska, Sylwia Różalska, Beata Sadowska, Barbara Różalska
The effectiveness of essential oils (EOs), fluconazole (FLU) and mupirocin (MUP) used alone or in combination against mono-species and mixed Candida albicans/Staphylococcus aureus biofilms was examined. An experimentally established dual-species biofilm model, verified by fluorescence microscopy and viable cell counting, was used. Selected commercial EOs were tested: geranium, citronella and clove oils, which have been chemically characterized and found to differ in the content of the main components (qualitative and quantitative)...
August 19, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28823082/mir-3910-promotes-the-growth-and-migration-of-cancer-cells-in-the-progression-of-hepatocellular-carcinoma
#4
Lina Cheng, Hongwei Wang, Shuangyin Han
INTRODUCTION: Previous studies have reported that specific depletion of mammalian sterile-like kinase (MST1) in the mouse liver driven Hepatocellular carcinoma (HCC). However, how the expression of MST1 was regulated in the progression of HCC remains largely unknown. MATERIALS AND METHODS: The expression of miR-3910 in the HCC tissues and cell lines were examined using q-PCR. The functions of miR-3910 in HCC were examined using MTT assay, Boyden chamber assay and soft agar assay...
August 19, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28823077/comparison-of-physical-function-in-early-rheumatoid-arthritis-patients-treated-with-biologics-for-1%C3%A2-year-who-achieved-clinical-remission-or-low-disease-activity
#5
Yosuke Hattori, Daihei Kida, Atsushi Kaneko
This study aimed to evaluate whether targeting clinical remission is appropriate for suppressing physical dysfunction in patients with early rheumatoid arthritis (RA). Subjects were all 75 early RA patients (within 2 years of onset) who were continuously treated with biologics for 12 months at our hospital. We evaluated the Simplified Disease Activity Index (SDAI) and Disability Index of the Health Assessment Questionnaire (HAQ-DI) at 3, 6, and 12 months from the initiation of biologics therapy. Rates of functional remission (HAQ-DI ≤ 0...
August 19, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28823056/exploiting-non-canonical-translation-to-identify-new-targets-for-t-cell-based-cancer-immunotherapy
#6
REVIEW
Céline M Laumont, Claude Perreault
Cryptic MHC I-associated peptides (MAPs) are produced via two mechanisms: translation of protein-coding genes in non-canonical reading frames and translation of allegedly non-coding sequences. In general, cryptic MAPs are coded by relatively short open reading frames whose translation can be regulated at the level of initiation, elongation or termination. In contrast to conventional MAPs, the processing of cryptic MAPs is frequently proteasome independent. The existence of cryptic MAPs derived from allegedly non-coding regions enlarges the scope of CD8 T cell immunosurveillance from a mere ~2% to as much as ~75% of the human genome...
August 19, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28823053/identification-of-a-ron-tyrosine-kinase-receptor-binding-peptide-using-phage-display-technique-and-computational-modeling-of-its-binding-mode
#7
Omid Zarei, Silvia Benvenuti, Fulya Ustun-Alkan, Maryam Hamzeh-Mivehroud, Siavoush Dastmalchi
RON (Recepteur d'Origine Nantais) tyrosine kinase receptor is a promising target for therapeutic intervention in cancer therapy. The aim of this work was identification of RON-binding peptides using phage display and computational modeling their mode of binding. A 12-mer peptide phage library was utilized to perform biopanning against RON. The RON-binding ability of the selected peptide-displaying phage and their possible binding sites were examined by ELISA. Binding modes and affinities were also predicted by docking and molecular dynamics (MD) simulation...
August 19, 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28823029/experience-of-lung-transplantation-in-patients-with-lymphangioleiomyomatosis-at-a-brazilian-reference-centre
#8
Bruno Guedes Baldi, Marcos Naoyuki Samano, Silvia Vidal Campos, Martina Rodrigues de Oliveira, José Eduardo Afonso Junior, Rafael Medeiros Carraro, Ricardo Henrique Oliveira Braga Teixeira, Isabela Pasqualini Minguini, Roni Burlina, Eduardo Zinoni Silva Pato, Carlos Roberto Ribeiro Carvalho, André Nathan Costa
INTRODUCTION: Lung transplantation (LT) is the standard of care for patients with advanced lung diseases, including lymphangioleiomyomatosis (LAM). LAM accounts for only 1% of all LTs performed in the international registry. As a result, the global experience, including the use of mechanistic target of rapamycin (mTOR) inhibitors before and after LT in LAM, is still limited. METHODS: We conducted a retrospective review of all LAM patients who underwent LT at our centre between 2003 and 2016...
August 19, 2017: Lung
https://www.readbyqxmd.com/read/28823025/nanomedicine-associated-with-photodynamic-therapy-for-glioblastoma-treatment
#9
REVIEW
Leonardo B de Paula, Fernando L Primo, Antonio C Tedesco
Glioblastoma, also known as glioblastoma multiforme (GBM), is the most recurrent and malignant astrocytic glioma found in adults. Biologically, GBMs are highly aggressive tumors that often show diffuse infiltration of the brain parenchyma, making complete surgical resection difficult. GBM is not curable with surgery alone because tumor cells typically invade the surrounding brain, rendering complete resection unsafe. Consequently, present-day therapy for malignant glioma remains a great challenge. The location of the invasive tumor cells presents several barriers to therapeutic delivery...
August 19, 2017: Biophysical Reviews
https://www.readbyqxmd.com/read/28823018/prevalence-and-nature-of-potential-drug-drug-interactions-among-kidney-transplant-patients-in-a-german-intensive-care-unit
#10
Julia Amkreutz, Alexander Koch, Lukas Buendgens, Anja Muehlfeld, Christian Trautwein, Albrecht Eisert
Background Complex polypharmacotherapy makes kidney transplant patients vulnerable to drug-drug interactions (DDIs). Objective To study prevalence and nature of potential DDIs (pDDIs) in kidney transplant patients. Setting Internal medicine ICU, University Hospital RWTH Aachen. Method In this retrospective observational study, pDDIs were identified in the first week after transplant from 1999 to 2010. Patients aged at least 18 years with prescription of at least two drugs were included. Patients with incomplete data were excluded...
August 19, 2017: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/28822990/%C3%AE-%C3%AE-mangostins-induces-autophagy-and-shows-synergistic-effectwith-gemcitabine-in-pancreatic-cancer-cell-lines
#11
Myoungjae Kim, Young-Won Chin, Eun Joo Lee
Pancreatic cancer is one of the most lethal and aggressive cancers in the world. However, no effective treatment is currently available for pancreatic cancer. The objective of this study was to determine the anti-pancreatic cancer effect of α-mangostin (αM) and γ-mangostin (γM) extracted from the pericarp of Garcinia mangostana L.. Both αM and γM reduced the viability of pancreatic cancer cells MIA PaCa-2 and PANC-1 in a dose-dependent manner. These compounds induced apoptosis by increasing c-PARP and c-Caspase 3 levels...
August 21, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28822989/cellular-prion-protein-enhances-drug-resistance-of-colorectal-cancer-cells-via-regulation-of-a-survival-signal-pathway
#12
Jun Hee Lee, Chul Won Yun, Sang Hun Lee
Anti-cancer drug resistance is a major problem in colorectal cancer (CRC) research. Although several studies have revealed the mechanism of cancer drug resistance, molecular targets for chemotherapeutic combinations remain elusive. To address this issue, we focused on the expression of cellular prion protein (PrP(C)) in 5-FU-resistant CRC cells. In 5-FU-resistant CRC cells, PrP(C) expression is significantly increased, compared with that in normal CRC cells. In the presence of 5-FU, PrP(C) increased CRC cell survival and proliferation by maintaining the activation of the PI3K-Akt signaling pathway and the expression of cell cycle-associated proteins, including cyclin E, CDK2, cyclin D1, and CDK4...
August 21, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28822986/insights-in-pathogenesis-of-multiple-sclerosis-nitric-oxide-may-induce-mitochondrial-dysfunction-of-oligodendrocytes
#13
Minghong Lan, Xiaoyi Tang, Jie Zhang, Zhongxiang Yao
Demyelinating diseases, such as multiple sclerosis (MS), are kinds of common diseases in the central nervous system (CNS), and originated from myelin loss and axonal damage. Oligodendrocyte dysfunction is the direct reason of demyelinating lesions in the CNS. Nitric oxide (NO) plays an important role in the pathological process of demyelinating diseases. Although the neurotoxicity of NO is more likely mediated by peroxynitrite rather than NO itself, NO can impair oligodendrocyte energy metabolism through mediating the damaging of mitochondrial DNA, mitochondrial membrane and mitochondrial respiratory chain complexes...
August 21, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/28822984/tbk1-mutations-in-italian-patients-with-amyotrophic-lateral-sclerosis-genetic-and-functional-characterisation
#14
Laura Pozzi, Fabiola Valenza, Lorena Mosca, Andrea Dal Mas, Teuta Domi, Alessandro Romano, Claudia Tarlarini, Yuri Matteo Falzone, Lucio Tremolizzo, Gianni Sorarù, Federica Cerri, Pilar M Ferraro, Silvia Basaia, Federica Agosta, Raffaella Fazio, Mauro Comola, Giancarlo Comi, Maurizio Ferrari, Angelo Quattrini, Christian Lunetta, Silvana Penco, Dario Bonanomi, Paola Carrera, Nilo Riva
BACKGROUND: TANK-binding kinase 1 (TBK1) gene has been recently identified as a causative gene of amyotrophic lateral sclerosis (ALS). METHODS: We sequenced the TBK1 gene in a cohort of 154 Italian patients with ALS with unclear genetic aetiology. We subsequently assessed the pathogenic potential of novel identified TBK1 variants using functional in vitro studies: expression, targeting and activity were evaluated in patient-derived fibroblasts and in cells transfected with mutated-TBK1 plasmids...
August 19, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28822963/%C3%AE-1a-subtype-adrenergic-agonist-therapy-for-failing-right-ventricle
#15
Patrick M Cowley, Guan-Ying Wang, Sunil K Joshi, Philip M Swigart, David H Lovett, Paul C Simpson, Anthony J Baker
Failure of the right ventricle (RV) is a serious disease with a poor prognosis and limited treatment options. Signaling by α1-adrenergic receptors (α1-ARs), in particular the α1A-subtype, mediate cardioprotective effects in multiple heart failure models. Recent studies show that chronic treatment with the α1A-subtype agonist A61603 improves function and survival in a model of LV failure. The goal of this study was to determine if chronic A61603 treatment is beneficial in a RV failure model. We used tracheal instillation of the fibrogenic antibiotic bleomycin in mice to induce pulmonary fibrosis, pulmonary hypertension, and RV failure within 2 wk...
August 19, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28822930/spatial-and-temporal-patterns-of-pesticide-concentrations-in-streamflow-drainage-and-runoff-in-a-small-swedish-agricultural-catchment
#16
Maria Sandin, Kristin Piikki, Nicholas Jarvis, Mats Larsbo, Kevin Bishop, Jenny Kreuger
A better understanding of the dominant source areas and transport pathways of pesticide losses to surface water is needed for targeting mitigation efforts in a more cost-effective way. To this end, we monitored pesticides in surface water in an agricultural catchment typical of one of the main crop production regions in Sweden. Three small sub-catchments (88-242ha) were selected for water sampling based on a high-resolution digital soil map developed from proximal sensing methods and soil sampling; one sub-catchment had a high proportion of clay soils, another was dominated by coarse sandy soils while the third comprised a mix of soil types...
August 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28822925/accumulation-of-anticoagulant-rodenticides-chlorophacinone-bromadiolone-and-brodifacoum-in-a-non-target-invertebrate-the-slug-deroceras-reticulatum
#17
Hussein Alomar, André Chabert, Michael Coeurdassier, Danièle Vey, Philippe Berny
Anticoagulant rodenticides (ARs) are used worldwide to control populations of agricultural and urban rodents, but these pesticides may be accumulated in and poisoned non-target species of wildlife. Slugs may feed on rodenticide bait following field applications. Thus, it can be assumed that their predators are exposed to rodenticides through food chain transfer. However, AR exposure in the slugs has not been systematically studied. We investigated the accumulation of three ARs (chlorophacinone, bromadiolone or brodifacoum) in the slug Deroceras reticulatum exposed for a period of 5days followed by depuration time of 4days in the laboratory...
August 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28822920/are-frailty-components-associated-with-disability-in-specific-activities-of-daily-living-in-community-dwelling-older-adults-a-multicenter-canadian-study
#18
Véronique Provencher, François Béland, Louise Demers, Johanne Desrosiers, Nathalie Bier, José Alberto Ávila-Funes, Claude Galand, Dominic Julien, John D Fletcher, Lise Trottier, Benyahia Hami
Current studies show the relevance of geriatric prevention and rehabilitation programs to slow down the development of disability in community-dwelling older adults who are becoming frail. This evidence reveals the importance of improving knowledge on how individual components of frailty and specific disability in basic and instrumental activities of daily living (ADL) are related, to offer early, targeted, and tailored interventions. The objective was to examine the association between each of the five frailty phenotype components (weakness, slowness, exhaustion, low physical activity, weight loss) and disability in specific ADL pertaining to physical aspects (bathing, dressing, cutting toe nails, transportation, shopping, housekeeping, food purchasing, food preparation) and cognitive aspects (finances, telephone, medication)...
August 2, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28822918/screening-for-frailty-in-community-dwelling-elderly-subjects-predictive-validity-of-the-modified-sega-instrument
#19
N Oubaya, M Dramé, J-L Novella, E Quignard, C Cunin, D Jolly, R Mahmoudi
AIMS: To study the capacity of the SEGAm instrument to predict loss of independence among elderly community-dwelling subjects. METHODS: The study was performed in four French departments (Ardennes, Marne, Meurthe-et-Moselle, Meuse). Subjects aged 65 years or more, living at home, who could read and understand French, with a degree of autonomy corresponding to groups 5 or 6 in the AGGIR autonomy evaluation scale were included. Assessment included demographic characteristics, comprehensive geriatric assessment, and the SEGAm instrument at baseline...
August 4, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28822913/polyphosphate-is-a-key-factor-for-cell-survival-after-dna-damage-in-eukaryotic-cells
#20
Samuel Bru, Bàrbara Samper-Martín, Eva Quandt, Sara Hernández-Ortega, Joan M Martínez-Laínez, Eloi Garí, Marta Rafel, Javier Torres-Torronteras, Ramón Martí, Mariana P C Ribeiro, Javier Jiménez, Josep Clotet
Cells require extra amounts of dNTPs to repair DNA after damage. Polyphosphate (polyP) is an evolutionary conserved linear polymer of up to several hundred inorganic phosphate (Pi) residues that is involved in many functions, including Pi storage. In the present article, we report on findings demonstrating that polyP functions as a source of Pi when required to sustain the dNTP increment essential for DNA repair after damage. We show that mutant yeast cells without polyP produce less dNTPs upon DNA damage and that their survival is compromised...
August 8, 2017: DNA Repair
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