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https://www.readbyqxmd.com/read/28440556/direct-hemoperfusion-with-polymyxin-b-immobilized-fibre-treatment-for-acute-exacerbation-of-interstitial-pneumonia
#1
Haruhiko Furusawa, Makiko Sugiura, Chieko Mitaka, Naohiko Inase
BACKGROUND AND OBJECTIVE: Acute exacerbation of idiopathic pulmonary fibrosis (AE-IPF) is recognized as an important cause of mortality. AE has also been reported in patients with other interstitial lung diseases such as idiopathic non-specific interstitial pneumonia (NSIP) and interstitial pneumonia associated with collagen vascular disease (CVD). Current therapies such as high-dose corticosteroid with immunosuppressive agents have provided little benefit for AE. Direct hemoperfusion (DHP) with a polymyxin B-immobilized fibre column (PMX) was originally developed for the treatment of endotoxaemia...
April 25, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28440192/mitochondrial-permeability-transition-pore-as-a-suitable-target-for-neuroprotective-agents-against-alzheimer-disease
#2
Elena F Shevtsova, Daria Vinogradova, Margarita E Neganova, Marco Avila-Rodriguez, George E Barreto, Sergey O Bachurin, Gjumrakch Aliev
A considerable amount of data suggests the age-related impairments of mitochondrial functions in the development of sporadic forms of neurodegenerative pathologies. These includes a decrease in the calcium retention capacity of mitochondria, which leads to the disturbance of the functional activity of neurons, and increased sensitivity of mitochondria towards the induction of the permeability transition. This in turn provoke the neuronal death enhancing the development of neurodegenerative processes. Inhibitors of mitochondrial permeability transition, which increases calcium retention capacity of mitochondria, are considered as promising neuroprotective drugs able not only to halt the neurodegenerative cascade, but also to increase the functional activity of neurons...
April 23, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28439402/upregulation-of-heme-oxygenase-1-expression-by-curcumin-conferring-protection-from-hydrogen-peroxide-induced-apoptosis-in-h9c2-cardiomyoblasts
#3
Xiaobo Yang, Hong Jiang, Yao Shi
BACKGROUND: Curcumin is a major constituent of rhizomes of Curcuma longa that elicits beneficial effects for oxidative damage. The aim of this study was to investigate whether curcumin could attenuate hydrogen peroxide (H2O2)-induced apoptosis in H9c2 cardiomyoblasts and the underlying mechanisms. RESULTS: The present study showed that exposure of H9c2 cells to H2O2 caused a significant increase in apoptosis as evaluated by flow cytometry analysis and the pretreatment of curcumin protected against H2O2-induced apoptosis...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/28438659/the-nrf2-activator-dh404-attenuates-adverse-ventricular-remodelling-post-myocardial-infarction-by-modifying-redox-signalling
#4
Kristen J Bubb, Cindy Kok, Owen Tang, Nathalie B Rasko, Asa Birna Birgisdottir, Thomas Hansen, Rebecca Ritchie, Ravinay Bhindi, Scott A Reisman, Colin Meyer, Keith Ward, Keyvan Karimi Galougahi, Gemma A Figtree
BACKGROUND: The novel synthetic triterpenoid, bardoxolone methyl, has the ability to upregulate cytoprotective proteins via induction of the nuclear factor erythroid-2-related factor 2 (Nrf2) pathway. This makes it a promising therapeutic agent in disease states characterized by dysregulated oxidative signalling. We have examined the effect of a Nrf2 activator, dihydro-CDDO-trifluoroethyl amide (DH404), a derivative of bardoxolone methyl, on post-infarct cardiac remodeling in rats. METHODS/RESULTS: DH404, administered from day 2 post myocardial infarction (MI: 30 min transient ischemia followed by reperfusion) resulted in almost complete protection against adverse ventricular remodeling as assessed at day 28 (left ventricular end-systolic area: sham 0...
April 21, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28436750/emap-ii-sensitize-u87mg-and-glioma-stem-like-cells-to-temozolomide-via-induction-of-autophagy-mediated-cell-death-and-g2-m-arrest
#5
Qi Yu, Libo Liu, Ping Wang, Yilong Yao, Yixue Xue, Yunhui Liu
Despite the fact that temozolomide (TMZ) has been widely accepted as the key chemotherapeutic agent to prolong the survival of patients with glioblastoma, failure and recurrence cases can still be observed in clinics. Glioma stem-like cells (GSCs) are thought to be responsible for the drug resistance. In this study, we investigate whether endothelial monocyte-activating polypeptide-II (EMAP-II), a pro-inflammatory cytokine, can enhance TMZ cytotoxicity on U87MG and GSCs or not. As described in prior research, GSCs have been isolated from U87MG and maintained in the serum-free DMEM/F12 medium containing EGF, b-FGF, and B27...
April 24, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28436644/ultrathin-tio2-b-nanosheets-as-the-inductive-agent-for-transfering-h2o2-into-superoxide-radicals
#6
Zhen Wei, Di Liu, Weiqin Wei, Xianjie Chen, Qiang Han, Wenqing Yao, Xinguo Ma, Yongfa Zhu
Reflux method to synthesis ultrathin polycrystalline TiO2(B) nanosheets (NS) which is assembled by single crystals, and further stacked into nanoflowers structure. Based on the theoretical calculations and experiments, H2O2 can easily substitute the ethylene glycol adsorded on the surface of TiO2(B) NS, forming H2O2-NS due to the lower adsorption energy and the unique structural features of ultrathin TiO2(B) nanosheets. TiO2(B) NS and H2O2 system can be accelerated to generat superoxide radicals under heat or light and thus exhibits a great degradation property on dye molecules, the total organic carbon (TOC) removal rate was 6 times higher than H2O2 alone...
April 24, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28435091/antimicrobial-peptides-role-in-human-disease-and-potential-as-immunotherapies
#7
REVIEW
César de la Fuente-Núñez, Osmar N Silva, Timothy K Lu, Octavio Luiz Franco
Antimicrobial peptides (AMPs) have evolved through billions of years as part of our innate immune system. These agents are produced by various cells throughout the human body and play important roles in our ability to respond to infections. In this review, we outline evidence linking AMP expression with a range of inflammatory and autoimmune human diseases. Finally, we highlight the promise of endogenous AMP induction for the treatment of disease (i.e., host-directed therapy) and briefly mention the different peptide drugs that are currently undergoing clinical trials...
April 21, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28434656/an-overview-of-eu-and-usa-intestinal-transplant-current-activity
#8
A Lauro, F Panaro, K R Iyer
AIM OF THE STUDY: To report the current activity of intestinal transplantation in Europe (EU) and Unites States of America (USA), underlining outcomes in the last 5 years and discussing possible trends. PATIENTS AND METHODS: Data review of results was performed through analysis of ITR and UNOS registries, Eurotransplant and newsletter transplant reports, congress abstracts, international published literature, personal communications and hospital web sites. RESULTS: The absence in Europe of a sole organization collecting donors and the presence of many low-volume centers (less than 5 cases/year) makes the difference with USA: in the last 5 years (2010-2014), 222 intestinal/multivisceral transplants have been performed in EU countries (most of them in the UK), while in USA, the number of transplants achieved 634 procedures in the same period of time...
April 20, 2017: Journal of Visceral Surgery
https://www.readbyqxmd.com/read/28432813/targeting-on-poly-adp-ribose-polymerase-activity-with-dna-damaging-hybrid-lactam-steroid-alkylators-in-wild-type-and-brca1-mutated-ovarian-cancer-cells
#9
Dimitrios T Trafalis, Aikaterini Polonifi, Panayiotis Dalezis, Nikolaos Nikoleousakos, Sotirios Katsamakas, Vassiliki Sarli
Conjugated lactam-steroid alkylators (LSA), have been shown to exhibit superior activity at controlling cancer models and overlap drug resistance to conventional chemotherapy. Hybrid LSAs combine two active compounds in a single molecule and incorporate modified steroids bearing lactam moiety in one or more steroid rings functioning as vectors for cytotoxic agents. We first describe a novel class of LSAs that generate excellent anticancer activity against UWB1.289 and UWB1.289+BRCA1 human ovarian cancer cell lines...
April 22, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28432759/anesthetic-and-postanesthetic-effects-of-alfaxalone-butorphanol-compared-with-dexmedetomidine-ketamine-in-chinchillas-chinchilla-lanigera
#10
Lily Parkinson, Christoph Mans
Effective and safe anesthetic protocols are required for a variety of surgical and diagnostic procedures in chinchillas.Alfaxalone, a new anesthetic agent in the United States, can be administered intramuscularly and subcutaneously and is therefore potentially useful as an anesthetic induction agent in chinchillas. This study compared the anesthetic efficacy andpostanesthetic effects on food intake and fecal output of a combination of intramuscular alfaxalone (5 mg/kg) and butorphanol(0.5 mg/kg; AB anesthesia) with a combination of dexmedetomidine (0...
April 21, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28432590/pathological-analysis-of-the-surgical-margins-of-resected-glioblastomas-excised-using-photodynamic-visualization-with-both-5-aminolevulinic-acid-and-fluorescein-sodium
#11
Hirohito Yano, Noriyuki Nakayama, Naoyuki Ohe, Kazuhiro Miwa, Jun Shinoda, Toru Iwama
During glioma resection, 5-aminolevulinic acid (5-ALA) and fluorescein sodium (Fl-Na) are used for photodynamic tumor visualization. The objective of this study was to evaluate the pathological findings of the boundary zone between the tumor and adjacent normal brain in glioblastoma patients undergoing simultaneous double staining with 5-ALA and Fl-Na during surgery. Eight patients received 5-ALA (20 mg/kg orally) before the induction of general anesthesia, and Fl-Na (20 mg/kg) was administered intravenously before the dural incision was performed...
April 21, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28431937/structural-modifications-in-the-sugar-moiety-as-a-key-to-improving-the-anticancer-effectiveness-of-doxorubicin
#12
REVIEW
Marta Denel-Bobrowska, Agnieszka Marczak
Doxorubicin (DOX) is one of the most commonly used and effective chemotherapeutic agents. Despite its clinical benefits, the use of DOX is often limited by serious adverse effects, such as severe cardiotoxicity and myelosuppression. Recent progress in chemical synthesis has enabled the design of modified anthracyclines with a sugar moiety being a desirable subject of research. A series of new analogues of DOX has been synthesised, in which the amino group in the daunosamine moiety was replaced by a formamidine system containing the rest of the cyclic secondary amine with gradually increased ring size...
April 18, 2017: Life Sciences
https://www.readbyqxmd.com/read/28431163/an-evaluation-of-the-human-relevance-of-the-lung-tumors-observed-in-female-mice-treated-with-permethrin-based-on-mode-of-action
#13
Tomoya Yamada, Miwa Kondo, Kaori Miyata, Keiko Ogata, Masahiko Kushida, Kayo Sumida, Satoshi Kawamura, Thomas G Osimitz, Brian G Lake, Samuel M Cohen
Permethrin increased the incidence of bronchiolo-alveolar adenomas in female mice but not male mice or female or male rats. Studies were conducted to determine whether permethrin has mitogenic activity in Club cells in mouse lung as the basis for the mode of action (MOA) for the lung adenoma induction. Several short term experiments focusing on time-course, dose-response, reversibility, sex difference, strain difference, and species difference were evaluated for Club cell proliferation and morphology. The findings demonstrated that permethrin slightly and continuously enhanced Club cell proliferation at tumor-associated dose levels in female mice, but did not increase proliferation in male mice or in female rats...
April 18, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28430601/growth-suppressive-activity-of-raloxifene-on-liver-cancer-cells-by-targeting-il-6-gp130-signaling
#14
Yina Wang, Haiyan Ma, Chongqiang Zhao, Tianshu Liu, Dan Yan, David Jou, Huameng Li, Cuntai Zhang, Jiagao Lü, Chenglong Li, Jiayuh Lin, Sheng Li, Li Lin
BACKGROUND: Interleukin-6 (IL-6) is a multifunctional cytokine, which is involved in the regulation of differentiation and growth of certain types of tumor cells. Constitutive activation of Signal Transducer and Activator of Transcription 3 (STAT3) induced by IL-6 is frequently detected in liver cancer and has emerged as a viable molecular target for liver cancer treatment. However, few inhibitors targeting up-streams of STAT3 are available for the therapy of liver cancer. We reported the discovery of EVISTA (Raloxifene HCl) as novel inhibitor of IL-6/GP130 protein-protein interactions (PPIs) using multiple ligand simultaneous docking (MLSD) and drug repositioning...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28429900/theanine-the-unique-amino-acid-in-the-tea-plant-as-an-oral-hepatoprotective-agent
#15
Dongxu Wang, Qiang Gao, Taotao Wang, Frank Qian, Yijun Wang
For thousands of years, humans have consumed tea made from leaves of Camellia sinensis, first as a medicinal herb and then as a widely popular beverage. In the past 10 years, theanine, a tea-derived, unique, nonproteinic amino acid, has been extensively studied for its health benefits. Recently, multiple lines of evidence have proven its beneficial effects on hepatic and immune functions. One possible mechanism for its biological activity involves the downregulation of the inflammatory response through the induction of nitric oxide production and glutathione synthesis...
May 2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28427896/toll-like-receptor-2-an-important-immunomodulatory-molecule-during-helicobacter-pylori-infection
#16
REVIEW
Maryam Nemati, Tiziana Larussa, Hossein Khorramdelazad, Merat Mahmoodi, Abdollah Jafarzadeh
Toll like receptors (TLRs) are an essential subset of pathogen recognition receptors (PRRs) which identify the microbial components and contribute in the regulation of innate and adaptive immune responses against the infectious agents. The TLRs, especially TLR2, TLR4, TLR5 and TLR9, participate in the induction of immune response against H. pylori. TLR2 is expressed on a number of immune and non-immune cells and recognizes a vast broad of microbial components due to its potential to form heterodimers with other TLRs, including TLR1, TLR6 and TLR10...
April 17, 2017: Life Sciences
https://www.readbyqxmd.com/read/28426350/lenalidomide-maintenance-compared-with-placebo-in-responding-elderly-patients-with-diffuse-large-b-cell-lymphoma-treated-with-first-line-rituximab-plus-cyclophosphamide-doxorubicin-vincristine-and-prednisone
#17
Catherine Thieblemont, Hervé Tilly, Maria Gomes da Silva, Rene-Olivier Casasnovas, Christophe Fruchart, Franck Morschhauser, Corinne Haioun, Julien Lazarovici, Anida Grosicka, Aurore Perrot, Judith Trotman, Catherine Sebban, Dolores Caballero, Richard Greil, Koen van Eygen, Amos M Cohen, Hugo Gonzalez, Reda Bouabdallah, Lucie Oberic, Bernadette Corront, Bachra Choufi, Armando Lopez-Guillermo, John Catalano, Achiel Van Hoof, Josette Briere, Jose Cabeçadas, Gilles Salles, Philippe Gaulard, Andre Bosly, Bertrand Coiffier
Purpose The standard treatment of patients with diffuse large B-cell lymphoma (DLBCL) is rituximab in combination with cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP). Lenalidomide, an immunomodulatory agent, has shown activity in DLBCL. This randomized phase III trial compared lenalidomide as maintenance therapy with placebo in elderly patients with DLBCL who achieved a complete response (CR) or partial response (PR) to R-CHOP induction. Methods Patients with previously untreated DLBCL or other aggressive B-cell lymphoma were 60 to 80 years old, had CR or PR after six or eight cycles of R-CHOP, and were randomly assigned to lenalidomide maintenance 25 mg/d or placebo for 21 days of every 28-day cycle for 24 months...
April 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28425987/biological-activity-of-tumor-treating-fields-in-preclinical-glioma-models
#18
Manuela Silginer, Michael Weller, Roger Stupp, Patrick Roth
Glioblastoma is the most common and aggressive form of intrinsic brain tumor with a very poor prognosis. Thus, novel therapeutic approaches are urgently needed. Tumor-treating fields (TTFields) may represent such a novel treatment option. The aim of this study was to investigate the effects of TTFields on glioma cells, as well as the functional characterization of the underlying mechanisms. Here, we assessed the anti-glioma activity of TTFields in several preclinical models. Applying TTFields resulted in the induction of cell death in a frequency- and intensity-dependent manner in long-term glioma cell lines, as well as glioma-initiating cells...
April 20, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28425825/reviewing-treatments-and-outcomes-in-the-evolving-landscape-of-ulcerative-colitis
#19
Marla C Dubinsky
Ulcerative colitis (UC) is a chronic inflammatory disease extending proximally from the rectum to varying lengths of the colon that is characterized by alternating cycles of relapse and remission. Therapeutic goals for patients with active UC include induction and maintenance of remission and improvement in quality of life, as well as mucosal healing, a clinical outcome recently recognized in treatment guidance as being equally important. Mucosal healing is associated with favorable long-term patient outcomes related to remission, surgery, hospitalization, and quality of life...
April 20, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28425751/development-of-red-blood-cell-autoantibodies-following-treatment-with-checkpoint-inhibitors-a-new-class-of-anti-neoplastic-immunotherapeutic-agents-associated-with-immune-dysregulation
#20
Laura L Cooling, John Sherbeck, Jonathon C Mowers, Sheri L Hugan
Ipilimumab, nivolumab, and pembrolizumab represent a new class of immunotherapeutic drugs for treating patients with advanced cancer. Known as checkpoint inhibitors, these drugs act to upregulate the cellular and humoral immune response to tumor antigens by inhibiting T-cell autoregulation. As a consequence, they can be associated with immune-related adverse events (irAEs) due to loss of self-tolerance, including rare cases of immune-related cytopenias. We performed a retrospective clinical chart review, including serologic, hematology, and chemistry laboratory results, of two patients who developed red blood cell (RBC) autoantibodies during treatment with a checkpoint inhibitor...
January 2017: Immunohematology
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