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https://www.readbyqxmd.com/read/28544857/new-treatment-directions-for-ipf-current-status-of-ongoing-and-upcoming-clinical-trials
#1
Francesco Macagno, Francesco Varone, Paolo Maria Leone, Pier-Valerio Mari, Loredana Panico, Ludovica Berardini, Luca Richeldi
The main objective of this review is to explore the wide and expanding field of new clinical trials in IPF. Recent trials have confirmed the efficacy of the approved drugs pirfenidone and nintedanib; nonetheless, the discovery of new biological pathways has opened new horizons in this field. Areas Covered: New strategies against matrix deposition are under study and so is for the role of immunity and autoimmunity. Recent advances in the use of stem cells are opening new possibilities for the recovery of damaged lung tissues...
May 25, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28544696/increased-incidence-of-liver-cancer-after-successful-daa-treatment-of-chronic-hepatitis-c-fact-or-fiction
#2
Alfredo Alberti, Sara Piovesan
Therapy of hepatitis C has been revolutionized by Direct Antiviral Agents. These drugs are safe and efficacious in all infected patients, including those with advanced, or decompensated cirrhosis, and are currently largely used in such cases in clinical practice worldwide. It was therefore cause of great concern the publication of two reports suggesting that treatment with DAAs could increase the risk of hepatocellular carcinoma in cirrhotic patients, particularly in those receiving antiviral therapy after having been cured for an HCC...
June 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28544679/sima-a-simplified-migration-assay-for-analyzing-neutrophil-migration
#3
Markus Weckmann, Tim Becker, Gyde Nissen, Martin Pech, Matthias V Kopp
In lung inflammation, neutrophils are the first leukocytes migrating to an inflammatory site, eliminating pathogens by multiple mechanisms. The term "migration" describes several stages of neutrophil movement to reach the site of inflammation, of which the passage of the interstitium and basal membrane of the airway are necessary to reach the site of bronchial inflammation. Currently, several methods exist (e.g., Boyden Chamber, under-agarose assay, or microfluidic systems) to assess neutrophil mobility. However, these methods do not allow for parameterization on single cell level, that is, the individual neutrophil pathway analysis is still considered challenging...
May 19, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28544655/3d-bioprinting-human-induced-pluripotent-stem-cell-constructs-for-in-situ-cell-proliferation-and-successive-multilineage-differentiation
#4
Qi Gu, Eva Tomaskovic-Crook, Gordon G Wallace, Jeremy M Crook
The ability to create 3D tissues from induced pluripotent stem cells (iPSCs) is poised to revolutionize stem cell research and regenerative medicine, including individualized, patient-specific stem cell-based treatments. There are, however, few examples of tissue engineering using iPSCs. Their culture and differentiation is predominantly planar for monolayer cell support or induction of self-organizing embryoids (EBs) and organoids. Bioprinting iPSCs with advanced biomaterials promises to augment efforts to develop 3D tissues, ideally comprising direct-write printing of cells for encapsulation, proliferation, and differentiation...
May 24, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28544574/reversing-polarity-carbonyl-%C3%AE-aminations-with-nitrogen-nucleophiles
#5
Aurelien de la Torre, Veronica Tona, Nuno Maulide
The synthesis of alpha-amino carbonyl compounds is an important challenge in synthesis en route to biologically essential structures. While classical approaches involve the use of enol or enolate chemistries in combination with an electrophilic source of nitrogen, those strategies usually necessitate further transformations in order to reach the desired targets. In recent years, a new approach arose involving the direct use of nucleophilic sources of nitrogen along with an oxidant. This advantageously leads in one-pot to the biologically relevant alpha-amino compounds, without further transformation required...
May 20, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28544366/enumeration-of-wt1-specific-cd8-t-cells-for-clinical-application-using-an-mhc-streptamer-based-no-wash-single-platform-flow-cytometric-assay
#6
Sarah Matko, Madeleine Teichert, Antje Tunger, Marc Schmitz, Martin Bornhauser, Torsten Tonn, Marcus Odendahl
The advent of novel strategies to generate leukemia-associated-antigen (LAA)-specific T cells for adoptive immunotherapies creates a demand for standardized good laboratory practice (GLP)-compliant enumeration assays to provide a secure clinical environment-whether it is to identify potential donors, define therapeutic doses for transplantation, or monitor clinical success. Here, we introduce a no-wash assay based on single-platform cell enumeration and Streptamer staining to determine the Wilms' tumor antigen 1 (WT1)-specific T cell immunity in clinical samples...
May 25, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28544221/single-atom-electrocatalysts
#7
Chengzhou Zhu, Shaofang Fu, Qiurong Shi, Dan Du, Yuehe Lin
Recent years have witnessed the increasing production of the sustainable and renewable energy. The limitations of electrochemical performances are closely associated with the search for highly efficient electrocatalysts with more rational control of size, shape, composition and structure. Specifically, the rapidly emerging studies on single-atom catalysts (SACs) have sparked new interests in electrocatalysis because of the unique properties such as high catalytic activity, selectivity and 100% atom utilization...
May 23, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28544095/phenotypic-assays-for-mycobacterium-tuberculosis-infection
#8
Ok-Ryul Song, Nathalie Deboosere, Vincent Delorme, Christophe J Queval, Gaspard Deloison, Elisabeth Werkmeister, Frank Lafont, Alain Baulard, Raffaella Iantomasi, Priscille Brodin
Tuberculosis (TB) is still a major global threat, killing more than one million persons each year. With the constant increase of Mycobacterium tuberculosis strains resistant to first- and second-line drugs, there is an urgent need for the development of new drugs to control the propagation of TB. Although screenings of small molecules on axenic M. tuberculosis cultures were successful for the identification of novel putative anti-TB drugs, new drugs in the development pipeline remains scarce. Host-directed therapy may represent an alternative for drug development against TB...
May 19, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28544078/emergency-medical-services-providers-perspective-of-end-of-life-decision-making-for-people-with-intellectual-disabilities
#9
Jacqueline McGinley, Deborah P Waldrop, Brian Clemency
BACKGROUND: Emergency medical services (EMS) providers are often called to rapidly determine and act upon patients' wishes for end-of-life care. People with intellectual disabilities are living increasingly longer with complex conditions leading to international calls for person-centred advance care planning. Yet, best estimates suggest that very few people with intellectual disabilities document their wishes. METHODS: This exploratory-descriptive study incorporated mixed methods to analyse data collected consecutively (surveys, n = 239; interviews, n = 48) with EMS providers from five agencies...
May 24, 2017: Journal of Applied Research in Intellectual Disabilities: JARID
https://www.readbyqxmd.com/read/28543973/advancing-the-adverse-outcome-pathway-framework-an-international-horizon-scanning-approach
#10
Carlie A LaLone, Gerald T Ankley, Scott E Belanger, Michelle R Embry, Geoff Hodges, Dries Knapen, Sharon Munn, Edward J Perkins, Murray A Rudd, Daniel L Villeneuve, Maurice Whelan, Catherine Willett, Xiaowei Zhang, Markus Hecker
Our ability to conduct whole-organism toxicity tests to understand chemical safety has been outpaced by the synthesis of new chemicals for a wide variety of commercial applications. As a result, scientists and risk assessors are turning to mechanistically based studies to increase efficiencies in chemical risk assessment and making greater use of in vitro and in silico methods to evaluate potential environmental and human health hazards. In this context, the adverse outcome pathway (AOP) framework has gained traction in regulatory science because it offers an efficient and effective means for capturing available knowledge describing the linkage between mechanistic data and the apical toxicity end points required for regulatory assessments...
June 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28542477/mycobacterium-tuberculosis-arrests-host-cycle-at-the-g1-s-transition-to-establish-long-term-infection
#11
Bridgette M Cumming, Md Aejazur Rahman, Dirk A Lamprecht, Kyle H Rohde, Vikram Saini, John H Adamson, David G Russell, Adrie J C Steyn
Signals modulating the production of Mycobacterium tuberculosis (Mtb) virulence factors essential for establishing long-term persistent infection are unknown. The WhiB3 redox regulator is known to regulate the production of Mtb virulence factors, however the mechanisms of this modulation are unknown. To advance our understanding of the mechanisms involved in WhiB3 regulation, we performed Mtb in vitro, intraphagosomal and infected host expression analyses. Our Mtb expression analyses in conjunction with extracellular flux analyses demonstrated that WhiB3 maintains bioenergetic homeostasis in response to available carbon sources found in vivo to establish Mtb infection...
May 22, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28542123/malaria-surveillance-united-states-2014
#12
Kimberly E Mace, Paul M Arguin
PROBLEM/CONDITION: Malaria in humans is caused by intraerythrocytic protozoa of the genus Plasmodium. These parasites are transmitted by the bite of an infective female Anopheles mosquito. The majority of malaria infections in the United States occur among persons who have traveled to regions with ongoing malaria transmission. However, malaria is occasionally acquired by persons who have not traveled out of the country through exposure to infected blood products, congenital transmission, laboratory exposure, or local mosquitoborne transmission...
May 26, 2017: MMWR. Surveillance Summaries: Morbidity and Mortality Weekly Report. Surveillance Summaries
https://www.readbyqxmd.com/read/28541962/use-of-femoral-artery-ultrasound-during-intraarterial-chemotherapy-for-children-under-10-kg-with-retinoblastoma
#13
Ryan S Kim, Mark J Dannenbaum, Michael W Lin, Maria E Bretana, Deborah L Brown, Amy C Schefler
PURPOSE: To demonstrate the safety and efficacy of intraarterial chemotherapy (IAC) in small infants (<10 kg) with retinoblastoma. METHODS: Retrospective, consecutive, observational case series of patients treated with IAC. Femoral arterial access was obtained using a micropuncture kit and ultrasound guidance, which enabled direct visualization. Melphalan (1.5-5.0 mg), topotecan (0.3-2.0 mg), and/or carboplatin (30-40 mg) were used. Patients underwent adjuvant therapies including laser, cryotherapy, and intravitreal melphalan if persistent disease or recurrence was observed...
May 23, 2017: Retina
https://www.readbyqxmd.com/read/28541511/molecular-association-of-arabidopsis-rth-with-its-homolog-rte1-in-regulating-ethylene-signaling
#14
Fangfang Zheng, Xiankui Cui, Maximo Rivarola, Ting Gao, Caren Chang, Chun-Hai Dong
The plant hormone ethylene affects many biological processes during plant growth and development. Ethylene is perceived by ethylene receptors at the endoplasmic reticulum (ER) membrane. The ETR1 ethylene receptor is positively regulated by the transmembrane protein RTE1, which localizes to the ER and Golgi apparatus. The RTE1 gene family is conserved in animals, plants, and lower eukaryotes. In Arabidopsis, RTE1-HOMOLOG (RTH) is the only homolog of the Arabidopsis RTE1 gene family. The regulatory function of the Arabidopsis RTH in ethylene signaling and plant growth is largely unknown...
May 24, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28540936/antigen-presenting-cell-targeted-lentiviral-vectors-do-not-support-the-development-of-productive-t-cell-effector-responses-implications-for-in-vivo-targeted-vaccine-delivery
#15
C Goyvaerts, Y De Vlaeminck, D Escors, S Lienenklaus, M Keyaerts, G Raes, K Breckpot
Targeting transgene expression specifically to antigen-presenting cells (APCs) has been put forward as a promising strategy to direct the immune system towards immunity. We developed the nanobody-display technology to restrict the tropism of lentiviral vectors (LVs) to APCs. However, we observed that immunization with APC-targeted LVs (DC2.1-LVs) did not evoke strong antigen-specific T-cell immunity when compared to immunization with broad tropism LVs (VSV.G-LVs). In this study, we report that VSV.G-LVs are more immunogenic than DC2...
May 25, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28540736/effects-of-diesel-exhaust-on-cardiovascular-function-and-oxidative-stress
#16
Simon Wilson, Mark R Miller, David E Newby
SIGNIFICANCE: Air pollution is a major global health concern with the particulate matter (PM) being especially associated with marked increases in cardiovascular morbidity and mortality. Diesel exhaust emissions are a particularly rich source of the smallest sizes of PM ("fine" and "ultrafine") in urban environments, and it is these particles that are believed to be the most detrimental to cardiovascular health. Recent Advances: Controlled exposure studies to diesel exhaust in animals and man demonstrate alterations in blood pressure, heart rate, vascular tone, endothelial function, myocardial perfusion, thrombosis, atherogenesis and plaque stability...
May 25, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28540671/multidisciplinary-management-of-mycosis-fungoides-s%C3%A3-zary-syndrome
#17
REVIEW
Sara Berg, Jennifer Villasenor-Park, Paul Haun, Ellen J Kim
PURPOSE OF REVIEW: Diagnosis and management of mycosis fungoides and Sézary syndrome (MF/SS) require accurate clinicopathological correlation and a multidisciplinary approach. We reviewed major advances in the field regarding diagnostic and prognostic tools as well as skin-directed therapies (SDTs) and systemic agents for MF/SS published in the past 2 years. RECENT FINDINGS: Improved technology (T-cell receptor high-throughput sequencing) and increased multicenter collaboration (Cutaneous Lymphoma International Consortium) have led to diagnostic/prognostic advances...
May 24, 2017: Current Hematologic Malignancy Reports
https://www.readbyqxmd.com/read/28540489/endoscopy-in-patients-on-antiplatelet-agents-and-anticoagulants
#18
REVIEW
Andrew M Veitch
Management of patients on anticoagulant or antiplatelet therapy undergoing endoscopy presents a balance of risks between haemorrhage due to the procedure, and thrombosis due to discontinuation of antithrombotic therapy. Haemorrhage is usually controllable endoscopically, but thrombosis could, on occasion, result in myocardial infarction or stroke, with permanent disability or death. For elective procedures, there is adequate time to plan best management of antithrombotic therapy. International guidelines have been published, but recommendations are based on limited evidence and consultation with appropriate medical specialists, and the patient is important...
May 25, 2017: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/28539839/ppard-is-an-inhibitor-of-cartilage-growth-in-external-ears
#19
Zhen Zhang, Yanyu Duan, Zhongping Wu, Hui Zhang, Jun Ren, Lusheng Huang
Peroxisome proliferator-activated receptor beta/delta (PPARD) is an important determinant of multiple biological processes. Our previous studies identified a missense mutation in the PPARD gene that significantly reduces its transcription activity, and consequently causes enlarged external ears in pigs. However, the mechanisms underlying the causality has remained largely unknown. Here, we show that PPARD retards the development of auricular cartilage by accelerating the apoptosis of cartilage stem/progenitor cells (CSPCs), the terminal differentiation of cartilage cells and the degradation of cartilage extracellular matrix in the auricle...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28539246/consideration-of-alternative-causes-of-lactic-acidosis-thiamine-deficiency-in-malignancy
#20
Ryan K Dean, Rogin Subedi, Dalvir Gill, Amitpal Nat
Lactic acidosis is a common metabolic acidosis characterized by increased serum lactate and is usually associated with a decreased blood pH. Lactic acidosis has many different causes but has been differentiated into type A, hypoxic causes, and type B, non-hypoxic causes. Tissue hypoxia, type A, is the most common cause, usually secondary to processes such as sepsis and multi-organ failure. Type A must be differentiated from type B in the correct clinical setting as treatments are vastly different. Type B causes may include drug side-effects, toxins, enzymatic defects, inherited or acquired, any of which may lead to overproduction or underutilization of lactate...
May 15, 2017: American Journal of Emergency Medicine
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