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https://www.readbyqxmd.com/read/28942358/claspin-functions-in-cell-homeostasis-a-link-to-cancer
#1
REVIEW
Diana Azenha, Maria Celeste Lopes, Teresa C Martins
Cancer remains one of the leading causes of mortality worldwide. Most cancers present high degrees of genomic instability. DNA damage and replication checkpoints function as barriers to halt cell cycle progression until damage is resolved, preventing the perpetuation of errors. Activation of these checkpoints is critically dependent on Claspin, an adaptor protein that mediates the phosphorylation of the effector kinase Chk1 by ATR. However, Claspin also performs other roles related to the protection and maintenance of cell and genome integrity...
September 8, 2017: DNA Repair
https://www.readbyqxmd.com/read/28935852/single-center-experience-in-pre-transplant-hepatitis-c-virus-hcv-treatment-among-living-donor-liver-transplant-candidates-bridging-the-direct-acting-antivirals-daa
#2
Ashwini M Niranjan-Azadi, Gokhan Kabacam, Christine M Durand, Saad Anjum, Behnam Saberi, Nabil N Dagher, Benjamin Philosophe, Ahmet Gurakar
BACKGROUND Treatment with DAAs before deceased donor liver transplantation has been shown to be an effective strategy to prevent post-transplant HCV recurrence, with a 95% cure-rate among individuals who achieve undetectable HCV VL for ≥30 days pre- transplant. This strategy has not been evaluated in LDLT. MATERIAL AND METHODS We evaluated outcomes in LDLT recipients treated with DAAs pre-transplant and bridged with 4 weeks of post-transplant SOF. All cases of LDLT at Johns Hopkins (1/1/2014-3/1/15) were retrospectively reviewed...
September 22, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28932915/outcomes-in-patients-with-advanced-heart-failure-and-small-body-size-undergoing-continuous-flow-left-ventricular-assist-device-implantation
#3
Nastasya Volkovicher, Chitaru Kurihara, Andre Critsinelis, Masashi Kawabori, Tadahisa Sugiura, Marcos Manon, Andrew B Civitello, Jeffrey A Morgan
Left ventricular assist devices (LVADs) have become a preferred treatment option for patients with end-stage heart failure when used as a bridge to transplant or as a destination therapy. However, the association between small body size and postoperative outcomes for continuous-flow (CF) LVAD recipients is still being studied. We sought to determine whether body surface area (BSA) is associated with patient outcomes after CF-LVAD implantation. The study cohort of our single-center, retrospective review consisted of all patients (n = 526) who underwent CF-LVAD implantation (n = 403 HeartMate II, n = 123 HeartWare) between November 2003 and March 2016 regardless of indication...
September 20, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28930049/experience-with-the-syncardia-total-artificial-heart-in-a-canadian-centre
#4
Anthony Nguyen, Michel Pellerin, Louis P Perrault, Michel White, Anique Ducharme, Normand Racine, Michel Carrier
BACKGROUND: The SynCardia total artificial heart (TAH) provides complete circulatory support by replacing both native ventricles. Accepted indications include bridge to transplantation and destination therapy. We review our experience with TAH implantation during a period when axial flow pump became available. METHODS: We retrospectively analyzed the demographics, clinical characteristics and survival of all patients receiving the TAH. RESULTS: From September 2004 to November 2016, 13 patients (12 men, mean age 45 ± 13 yr) received the TAH for refractory cardiogenic shock secondary to idiopathic (56%) or ischemic (17%) cardiomyopathy and to other various causes (33%)...
October 1, 2017: Canadian Journal of Surgery. Journal Canadien de Chirurgie
https://www.readbyqxmd.com/read/28929391/redefining-approaches-to-asthma-bridging-the-gap-between-heparin-and-its-anti-inflammatory-activities
#5
REVIEW
Madhur D Shastri, Gregory M Peterson, Rahul P Patel
Heparin is widely used as an anticoagulant. Currently, this macromolecule is at the forefront in the field of glycobiology because of the recognition of its therapeutic potential in a wide range of medical conditions including inflammation. Heparin is composed of anticoagulant and non-anticoagulant molecules. A large body of evidence suggests that the anti-inflammatory activities of heparin are attributed to its non-anticoagulant molecules and are therefore independent to its anticoagulant effect. However, the potential therapeutic use of heparin in inflammatory conditions is hindered by the presence of anticoagulant molecules causing the risk of bleeding...
October 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28922598/proteolytic-unlocking-of-ultrastable-twin-acylhydrazone-linkers-for-lysosomal-acid-triggered-release-of-anticancer-drugs
#6
Yiwu Zheng, Jing Ren, Yaqi Wu, Xiaoting Meng, Yibing Zhao, Chuanliu Wu
Targeted prodrugs exploiting cleavable linkers capable of responding to endogenous stimuli have increasingly been explored for cancer therapy. Successful application of these prodrug designs relies on the manipulation of both stability and responsiveness of the cleavable linkers, which, however, are difficult to be finely regulated, particularly for acid-responsive acylhydrazone bonds. Here we developed a new class of peptide-bridged twin-acylhydrazone linkers (PTA linkers) displaying both an ultrahigh stability and a rapid responsiveness-highly stable in neutral and acidic conditions due to the effect of cooperativity between the two acylhydrazone bonds, easily cleavable in acidic conditions after enzymatically triggered unlocking of the two bonds...
September 22, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28922081/clinical-outcomes-following-conservative-management-of-chronic-traumatic-cervical-myelopathy-a-case-report
#7
Justin Bridges, Roberto Sandoval
BACKGROUND AND PURPOSE: There is limited evidence supporting the conservative management of patients with cervical myelopathy. The purpose of this report is to describe the intervention and outcomes of conservative physical therapy interventions for one patient with chronic cervical myelopathy. CASE DESCRIPTION: This case was a 50-year-old male who sustained a neck injury following a rear-end collision 4 years prior to this therapeutic episode. The patient presented with decreased range of motion in the cervical spine and right upper extremity, strength deficits, altered sensation, poor posture, and reported chronic cervical region pain and difficulty sleeping...
September 18, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28921807/the-italian-compassionate-use-of-sofosbuvir-in-hcv-patients-waitlisted-for-liver-transplantation-a-national-real-life-experience
#8
Silvia Martini, Maria Francesca Donato, Chiara Mazzarelli, Maria Rendina, Ubaldo Visco-Comandini, Daniela Filì, Alice Gianstefani, Stefano Fagiuoli, Mario Melazzini, Simona Montilla, Luca Pani, Sandra Petraglia, Pierluigi Russo, Maria Paola Trotta, Paola Carrai, Paolo Caraceni
BACKGROUND & AIMS: This study aimed to assess the real-life clinical and virological outcomes of HCV waitlisted patients for liver transplantation (LT) who received sofosbuvir/ribavirin (SOF/R) within the Italian compassionate use program. METHODS: Clinical and virological data were collected in 224 patients with decompensated cirrhosis and/or hepatocellular carcinoma (HCC) receiving daily SOF/R until LT or up a maximum of 48 weeks. RESULTS: Of 100 transplanted patients, 51 were HCV-RNA negative for >4 weeks before LT (SVR12: 88%) and 49 negative for <4 weeks or still viremic at transplant: 34 patients continued treatment after LT (bridging therapy) (SVR12: 88%), while 15 stopped treatment (SVR12: 53%)...
September 16, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28920715/the-mixed-message-behind-medication-assisted-treatment-for-substance-use-disorder
#9
Sean M Robinson, Bryon Adinoff
The gap between treatment utilization and treatment need for substance use disorders (SUDs) remains a significant concern in our field. While the growing call to bridge this gap often takes the form of more treatment services and/or better integration of existing services, this perspective proposes that more effective labels for and transparent descriptions of existing services would also have a meaningful impact. Adopting the perspective of a consumer-based health-care model (wherein treatments and services are products and patients are consumers) allows us to consider how labels like Addiction-focused Medical Management, Medication-Assisted Treatment, Medication-Assisted Therapy, and others may actually be contributing to the underutilization problem rather than alleviating it...
September 18, 2017: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/28918255/microglia-mediated-baff-baffr-ligation-promotes-neuronal-survival-in-brain-ischemia-injury
#10
Kai Li, Wei Yu, Rangjuan Cao, Zhihua Zhu, Guoqing Zhao
The innate immune responses of brain to vascular occlusion are primarily orchestrated by activated microglia. However, the roles of microglia in inflammatory responses to brain ischemic injuries are controversial. Here, we report a new mechanism by which microglia confer protective effects on ischemic neuronal cells. We found that under ischemic condition, the B-cell activating factor (BAFF) was vastly upregulated in microglia and this upregulation could at least be attributed to JAK-STAT signaling pathway activated by IFN-γ and IL-10, which were spatio-temporally enriched in I/R injured brain as well...
September 13, 2017: Neuroscience
https://www.readbyqxmd.com/read/28912459/iron-deposition-is-associated-with-differential-macrophage-infiltration-and-therapeutic-response-to-iron-chelation-in-prostate-cancer
#11
Avigdor Leftin, Huiyong Zhao, Mesru Turkekul, Elisa de Stanchina, Katia Manova, Jason A Koutcher
Immune cells such as macrophages are drivers and biomarkers of most cancers. Scoring macrophage infiltration in tumor tissue provides a prognostic assessment that is correlated with disease outcome and therapeutic response, but generally requires invasive biopsy. Routine detection of hemosiderin iron aggregates in macrophages in other settings histologically and in vivo by MRI suggests that similar assessments in cancer can bridge a gap in our ability to assess tumor macrophage infiltration. Quantitative histological and in vivo MRI assessments of non-heme cellular iron revealed that preclinical prostate tumor models could be differentiated according to hemosiderin iron accumulation-both in tumors and systemically...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28911305/alginate-based-cell-microencapsulation-for-tissue-engineering-and-regenerative-medicine
#12
Vittoria Pandolfi, Ulysse Pereira, Murielle Dufresne, Cécile Legallais
Increasing numbers of requests for transplantable organs and their scarcity has led to a pressing need to find alternative solutions to standard transplantation. An appealing but challenging proposal came from the fields of tissue engineering and regenerative medicine, the purpose of which is to build tissues/organs from scratch in the laboratory and use them as either permanent substitutes for direct implantation into the patient's body, or as temporary substitutes to bridge patients until organ regeneration or transplantation...
June 8, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28910912/-percutaneous-catheterization-for-extracorporeal-membrane-oxygenation-a-retrospective-case-series
#13
X Y Li, H Y He, X Tang, R Wang, C Y Zhang, S Q Wang, B Sun, Z H Tong
Objective: To review the experience of percutaneous catheterization for extracorporeal membrane oxygenation (ECMO) by respiratory intensivists at a single institution. Methods: A retrospective review of 87 patients undergoing percutaneous catheterization for ECMO in Department of Respiratory and Critical Care Medicine of Beijing Chaoyang Hospital from November 2009 to January 2017. Subject demographics, type of support, cannulation configuration, types of cannulas, use of imaging modalities, and complications were recorded and summarized...
September 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28906581/is-there-a-benefit-of-mechanical-thrombectomy-in-patients-with-large-stroke-dwi-aspects%C3%A2-5
#14
Pierre-François Manceau, Sébastien Soize, Matthias Gawlitza, Guillaume Fabre, Serge Bakchine, Carole Durot, Isabelle Serre, Georgios-Emmanouil Metaxas, Laurent Pierot
BACKGROUND: Whether to withhold mechanical thrombectomy when the diffusion-weighted imaging (DWI) lesion exceeds a given volume is undetermined. We aimed to identify markers that will help to select patients with large DWI lesions (DWI-Alberta Stroke Program Early CT Score, DWI-ASPECTS≤5) that may benefit from thrombectomy. METHODS: From May 2010 to November 2016, we studied 82 acute ischemic stroke patients with DWI-ASPECTS≤5 (43 men, 64.6±14.4 years, NIHSS 18...
September 14, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28906275/vv-ecmo-assisted-high-risk-endobronchial-stenting-as-rescue-for-asphyxiating-mediastinal-mass
#15
Brandon T Nokes, Laszlo Vaszar, Jama Jahanyar, Karen L Swanson
The use of venovenous extracorporeal membrane oxygenation (VV-ECMO) has traditionally been limited to a narrow set of clinical circumstances, such as acute hypoxic respiratory failure, submassive pulmonary embolism, and cardiopulmonary collapse. Within the pediatric population, there have been cases of VV-ECMO in the context of extrinsic airway compression by a mediastinal mass, typically in the setting of either a lymphoma or germ cell tumors. However, the use of VV-ECMO for adults with extrinsic airway compression is comparatively limited...
September 12, 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28905489/consensus-and-controversies-regarding-the-treatment-of-rhabdomyosarcoma
#16
REVIEW
Scott C Borinstein, Diana Steppan, Masanori Hayashi, David M Loeb, Michael S Isakoff, Odion Binitie, Andrew S Brohl, Julia A Bridge, Mark Stavas, Eric T Shinohara, William H Meyer, Damon R Reed, Lars M Wagner
Optimal treatment of rhabdomyosarcoma (RMS) requires multidisciplinary approach, incorporating chemotherapy with local control. Although current therapies are built on cooperative group trials, a comprehensive standard of care to guide clinical decision making has been lacking, especially for relapsed patients. Therefore, we assembled a panel of pediatric and adolescent and young adult sarcoma experts to develop treatment guidelines for managing RMS and to identify areas in which further research is needed...
September 14, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28899745/primatologist-a-modular-segmentation-pipeline-for-macaque-brain-morphometry
#17
Yaël Balbastre, Denis Rivière, Nicolas Souedet, Clara Fischer, Anne-Sophie Hérard, Susannah Williams, Michel E Vandenberghe, Julien Flament, Romina Aron-Badin, Philippe Hantraye, Jean-François Mangin, Thierry Delzescaux
Because they bridge the genetic gap between rodents and humans, non-human primates (NHPs) play a major role in therapy development and evaluation for neurological disorders. However, translational research success from NHPs to patients requires an accurate phenotyping of the models. In patients, magnetic resonance imaging (MRI) combined with automated segmentation methods has offered the unique opportunity to assess in vivo brain morphological changes. Meanwhile, specific challenges caused by brain size and high field contrasts make existing algorithms hard to use routinely in NHPs...
September 9, 2017: NeuroImage
https://www.readbyqxmd.com/read/28888837/left-ventricular-device-implantation-impacts-on-hospitalisation-rates-length-of-stay-and-out-of-hospital-time
#18
Roslyn Prichard, Louise Kershaw, Stephen Goodall, Patricia Davidson, Phillip Newton, Frederick McNeil, Timothy Homer, Christopher Hayward
BACKGROUND: Widespread application of left ventricular assist devices (LVADs) in advanced heart failure, is limited by costs, and access to technical expertise. Hospitalisation drives both cost and inversely, quality of life - but cross institutional and pre-surgical inpatient length of stay data is missing in the Australian literature. We describe changes in hospitalisation rates, in the year before and after bridge to transplant LVAD therapy and preceding heart transplant (HTX). METHODS: Hospitalisation, Australian refined diagnosis group (ArDRG), and clinical data were assessed for 77/100 consecutive patients listed for heart transplant between July of 2009 and June of 2012...
July 18, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28888071/the-effect-of-ventricular-assist-device-associated-biomaterials-on-human-blood-leukocytes
#19
Gemma Radley, Ina Laura Pieper, Catherine A Thornton
Ventricular assist devices (VADs) are an effective bridging or destination therapy for patients with advanced stage heart failure. These devices remain susceptible to adverse events including infection, bleeding, and thrombus; events linked to the foreign body response. Therefore, the biocompatibility of all biomaterials used is crucial to the success of medical devices. Biomaterials common in VADs-DLC: diamond-like carbon coated stainless steel; Sap: single-crystal sapphire; SiN: silicon nitride; Ti: titanium alloy; and ZTA: zirconia-toughened alumina-were tested for their biocompatibility through incubation with whole human blood for 2 h with mild agitation...
September 9, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28887927/cardiac-support-emphasis-on-venoarterial-ecmo
#20
REVIEW
Christopher S King, Aviral Roy, Liam Ryan, Ramesh Singh
Major advances have been made in mechanical circulatory support in recent years. Venoarterial (VA) extracorporeal membrane oxygenation (ECMO) provides both pulmonary and circulatory support for critically ill patients with hemodynamic compromise, serving as a bridge to recovery or definitive therapy in the form of transplant or a durable ventricular assist device. In the past, VA ECMO support was used in cases of cardiogenic shock or failure to wean from cardiopulmonary bypass; however, the technology is now being applied to an ever-expanding list of conditions, including massive pulmonary embolism, cardiac arrest, drug overdose, and hypothermia...
October 2017: Critical Care Clinics
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