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Mechanical Diagnosis & Therapy

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https://www.readbyqxmd.com/read/29345584/mechanical-support-in-cardiogenic-shock-complicating-acute-coronary-syndrome-ready-for-prime-time
#1
Guillaume Schurtz, Marc Laine, Clement Delmas, Francois Kerbaul, Etienne Puymirat, Gilles Lemesle, Laurent Bonello
Cardiogenic shock (CS) is a major challenge in current cardiology. Over the last decade, cardiogenic shock mortality has decreased somewhat, but it still remains high, particularly when associated with ischaemic heart disease. The challenges are numerous and include prevention, accurate diagnosis, prompt management and effective therapies to support a failing heart and prevent multi-organ failure. Despite improvements in the care of acute coronary syndrome (ACS), it remains the most common cause of CS. In addition to existing medical therapy, mechanical circulatory support has been proposed for the management of ventricular failure...
January 16, 2018: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/29345576/radiotracers-for-amyloid-imaging-in-neurodegenerative-disease-state-of-the-art-and-novel-concepts
#2
Angelina Cistaro, Pierpaolo Alongi, Federico Caobelli, Laura Cassalia
The pathological accumulation of various peptides is the common base of many neurodegenerative processes, likewise Alzheimer's disease (AD). AD is carachterized by amyloid deposits which may cause modification in neurotransmission, switching on inflammatory mechanisms, neuronal death and cerebral atrophy. Diagnosis in vivo is challenging as the criteria rely mainly on clinical manifestations, which become evident only in a late stage of the disease. Currently AD diagnosis can be definitively confirmed just by postmortem histopathologic examination but in vivo imaging may improve the clinician's ability to identify AD at the earliest stage...
January 16, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29344468/levetiracetam-induced-skin-hyperpigmentation-an-extremely-rare-undesirable-side-effect
#3
Hussein Algahtani, Siham Marghalani, Mohamed Satti, Bader Shirah
Levetiracetam is one of the newer second-generation antiepileptic drugs with multiple mechanisms of action. Cutaneous side effects due to levetiracetam are rarely reported in the literature. In this article, we describe a patient with skin hyperpigmentation due to the treatment with levetiracetam with complete resolution after discontinuation of the medication. In addition, we review the topic and hypothesize the mechanism behind this rare complication. To the best of our knowledge, this is the first report of skin hyperpigmentation as a side effect of levetiracetam in the literature...
December 2017: Journal of Epilepsy Research
https://www.readbyqxmd.com/read/29344085/synthesis-secretion-function-metabolism-and-application-of-natriuretic-peptides-in-heart-failure
#4
REVIEW
Shihui Fu, Ping Ping, Fengqi Wang, Leiming Luo
As a family of hormones with pleiotropic effects, natriuretic peptide (NP) system includes atrial NP (ANP), B-type NP (BNP), C-type NP (CNP), dendroaspis NP and urodilatin, with NP receptor-A (guanylate cyclase-A), NP receptor-B (guanylate cyclase-B) and NP receptor-C (clearance receptor). These peptides are genetically distinct, but structurally and functionally related for regulating circulatory homeostasis in vertebrates. In humans, ANP and BNP are encoded by NP precursor A (NPPA) and NPPB genes on chromosome 1, whereas CNP is encoded by NPPC on chromosome 2...
2018: Journal of Biological Engineering
https://www.readbyqxmd.com/read/29342325/the-neuromuscular-complications-of-immune-checkpoint-inhibitor-therapy
#5
REVIEW
Noah A Kolb, Christopher R Trevino, Waqar Waheed, Fatemeh Sobhani, Kara K Landry, Alissa A Thomas, Mike Hehir
Immune checkpoint inhibitor (ICPI) therapy unleashes the body's natural immune system to fight cancer. ICPIs improve overall cancer survival, however the unbridling of the immune system may induce a variety of immune related adverse events. Neuromuscular immune complications are rare but they can be severe. Myasthenia gravis and inflammatory neuropathy are the most common neuromuscular adverse events but a variety of others including inflammatory myopathy are reported. The pathophysiologic mechanism of these autoimmune disorders may differ from that of non-ICPI related immune diseases...
January 17, 2018: Muscle & Nerve
https://www.readbyqxmd.com/read/29337112/molecular-heterogeneity-in-diffuse-large-b-cell-lymphoma-and-its-implications-in-clinical-diagnosis-and-treatment
#6
REVIEW
Lingchuan Guo, Pei Lin, Hui Xiong, Shichun Tu, Gang Chen
Over half of patients with diffuse large B-cell lymphoma (DLBCL) can be cured by standard R-CHOP treatment (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone). However, the remaining patients are refractory and ultimately succumb to progressive or relapsed disease. During the past decade, there has been significant progress in the understanding of molecular mechanisms in DLBCL, largely owing to collaborative efforts in large-scale gene expression profiling and deep sequencing, which have identified genetic alterations critical in lymphomagenesis through activation of key signaling transduction pathways in DLBCL...
January 11, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29337110/muc16-c-terminal-induced-secretion-of-tumor-derived-il-6-contributes-to-tumor-associated-treg-enrichment-in-pancreatic-cancer
#7
Kun Fan, Chao Yang, Zhiyao Fan, Qiuyi Huang, Yiyin Zhang, He Cheng, Kaizhou Jin, Yu Lu, Zhengshi Wang, Guopei Luo, Xianjun Yu, Chen Liu
Pancreatic cancer is the most lethal tumor. CA125 (gene symbol MUC16) is an important serum marker for pancreatic cancer diagnosis and treatment. High serum CA125 is related to metabolic tumor burden and poor prognosis. The circulating Treg subset is another independent prognostic factor for pancreatic cancer. Our unpublished data indicated that the circulating Treg proportion might be related to the serum CA125 level. However, the potential relationship and underlying mechanism of MUC16 and Treg in pancreatic cancer tissues remain unclear...
January 11, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29332577/the-potential-use-of-peptides-for-cancer-treatment
#8
Bahram Yavari, Reza Mahjub, Masoud Saidijam, Mojgan Raigani, Meysam Soleimani
Conventional chemotherapeutic drugs have significant limitations: For example, tumors may develop resistance to them, cancers may relapse after treatment, and the drugs may induce secondary malignancies in the treatment of metastatic cancer. There is still a great need for drugs that are able to destroy cancer cells selectively, that is, to effectively treat slow-growing and dormant cells without being affected by chemoresistance mechanisms. A growing number of studies indicate that peptides may be beneficial for drug discovery and development...
January 11, 2018: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/29330579/-initially-undetected-de-novo-psoriasis-triggered-by-nivolumab-for-metastatic-base-of-the-tongue-carcinoma
#9
S Troyanova-Slavkova, L Eickenscheidt, K Dumann, L Kowalzick
Nivolumab is a monoclonal antibody that binds to the PD-1 receptor on T cells and inhibits the interaction with the PD-L1 and PD-L2 ligands on cancer cells. Thus, nivolumab has immunostimulatory properties. The known side effects of this therapy include fatigue, skin rash, dysfunction of the thyroid gland and colitis, which are explained by the immunoregulatory mechanisms of the drug. Here we report on the case of a 58-year-old man with metastatic base of tongue carcinoma who developed de novo psoriasis triggered by nivolumab...
January 12, 2018: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/29330206/evolution-of-cytogenetically-normal-acute-myeloid-leukemia-during-therapy-and-relapse-an-exome-sequencing-study-of-50-patients
#10
Philipp A Greif, Luise Hartmann, Sebastian Vosberg, Sophie Stief, Raphael Mattes, Ines Hellmann, Klaus H Metzeler, Tobias Herold, Stefanos Bamopoulos, Paul Kerbs, Vindi Jurinovic, Daniela Schumacher, Friederike Pastore, Kathrin Bräundl, Evelyn Zellmeier, Bianka Ksienzyk, Nikola Konstandin, Stephanie Schneider, Alexander Graf, Stefan Krebs, Helmut Blum, Martin Neumann, Claudia Baldus, Stefan K Bohlander, Stephan Wolf, Dennis Goerlich, Wolfgang E Berdel, Bernhard J Woermann, Wolfgang Hiddemann, Karsten Spiekermann
PURPOSE: To study mechanisms of therapy-resistance and disease progression, we analyzed the evolution of cytogenetically normal acute myeloid leukemia (CN-AML) based on somatic alterations. EXPERIMENTAL DESIGN: We performed exome-sequencing of matched diagnosis, remission and relapse samples from 50 CN-AML patients treated with intensive chemotherapy. Mutation patterns were correlated with clinical parameters. RESULTS: Evolutionary patterns correlated with clinical outcome...
January 12, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29329694/management-of-refractory-vasodilatory-shock
#11
REVIEW
Jacob C Jentzer, Saraschandra Vallabhajosyula, Ashish K Khanna, Lakhmir S Chawla, Laurence W Busse, Kianoush B Kashani
Refractory shock is a lethal manifestation of cardiovascular failure defined by an inadequate hemodynamic response to high doses of vasopressor medications. Approximately 7% of critically ill patients will develop refractory shock, with short-term mortality exceeding 50%. Refractory vasodilatory shock develops from uncontrolled vasodilation and vascular hyporesponsiveness to endogenous vasoconstrictors, causing failure of physiologic vasoregulatory mechanisms. Standard approaches to initial management of shock include fluid resuscitation and initiation of norepinephrine...
January 9, 2018: Chest
https://www.readbyqxmd.com/read/29327894/cell-therapy-for-heart-disease-current-status-and-future-directions
#12
Arunpreet Kahlon, Gaurang Vaidya, Roberto Bolli
Treatment of ischemic heart disease has evolved considerably over time, seeing a technological impetus in recent times. Prompt diagnosis and progressively earlier reperfusion of the infarct artery have become the cornerstone of the early myocardial ischemia management. However, treatment of post-infarction sequelae resulting from ischemic damage sustained within the myocardium remains a considerable challenge. In this setting, stem cell therapy has emerged as an exciting regenerative modality with a promise to arrest or even reverse the pathological myocardial remodeling...
January 10, 2018: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29327314/computational-modeling-for-cardiac-resynchronization-therapy
#13
Angela W C Lee, Caroline Mendonca Costa, Marina Strocchi, Christopher A Rinaldi, Steven A Niederer
Cardiac resynchronization therapy (CRT) is an effective treatment for heart failure (HF) patients with an electrical substrate pathology causing ventricular dyssynchrony. However 40-50% of patients do not respond to treatment. Cardiac modeling of the electrophysiology, electromechanics, and hemodynamics of the heart has been used to study mechanisms behind HF pathology and CRT response. Recently, multi-scale dyssynchronous HF models have been used to study optimal device settings and optimal lead locations, investigate the underlying cardiac pathophysiology, as well as investigate emerging technologies proposed to treat cardiac dyssynchrony...
January 11, 2018: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/29327261/chronic-rejection-after-intestinal-transplant-where-are-we-in-order-to-avert-it
#14
REVIEW
Augusto Lauro, Mihai Oltean, Ignazio R Marino
Chronic rejection affects the long-term survival of all solid organ transplants and, among intestinal allografts, occurs in up to 10% of the recipients. The insidious clinical evolution of the chronic allograft enteropathy, the absence of noninvasive biomarkers, and the late endoscopic findings delay its diagnosis. No pharmacological approach has been proven effective, and allograft removal nowadays still represents the only available therapy. The inclusion of the liver in the visceral allograft appears to be the only intervention affecting the development of chronic rejection, as revealed by large-center studies and registry reports...
January 11, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29326990/a-fluorescent-microbead-based-microfluidic-immunoassay-chip-for-immune-cell-cytokine-secretion-quantification
#15
Xin Cui, Ya Liu, Dinglong Hu, Weiyi Qian, Chung Tin, Dong Sun, Weiqiang Chen, Raymond H W Lam
Quantitative and dynamic analyses of immune cell secretory cytokines are essential for precise determination and characterization of the "immune phenotype" of patients for clinical diagnosis and treatment of immune-related diseases. Although multiple methods including the enzyme-linked immunosorbent assay (ELISA) have been applied for cytokine detection, such measurements remain very challenging in real-time, high-throughput, and high-sensitivity immune cell analysis. In this paper, we report a highly integrated microfluidic device that allows for on-chip isolation, culture, and stimulation, as well as sensitive and dynamic cytokine profiling of immune cells...
January 12, 2018: Lab on a Chip
https://www.readbyqxmd.com/read/29323713/neat1-contributes-to-breast-cancer-progression-through-modulating-mir-448-and-zeb1
#16
Xing Jiang, Yong Zhou, Ai-Jun Sun, Jun-Li Xue
Breast cancer is a kind of common female cancers. Increasing evidence has exhibited that lncRNAs exert a crucial role in breast cancer. So far, the mechanism of lncRNAs in breast cancer is still not well established. In our current study, we focused on the biological role of lncRNA Nuclear Enriched Abundant Transcript 1 (NEAT1) in breast cancer. We observed that NEAT1 levels were significantly increased in human breast cancer cells including MCF-7, MDA-MB-453, MDA-MB-231and SKBR3 cells compared to normal mammary epithelial cells MCF-10A while miR-448 was decreased...
January 11, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29323477/synthesis-of-structurally-defined-cationic-polythiophenes-for-dna-binding-and-gene-delivery
#17
Chi Zhang, Jinkai Ji, Xiaoyan Shi, Xiaoyu Zheng, Xuewei Wang, Fude Feng
Water-soluble conjugated polymers (WCPs) have prospective applications in the field of bioimaging, disease diagnosis and therapy. However, the use of WCPs with controllability and regio-regularity for bioapplications have scarcely been reported. In this work, we synthesized polythiophenes containing ester side chains (P3ET) via Kumada catalyst-transfer polycondensation (KCTP) and confirmed a quasi-"living" chain-growth mechanism. In addition, we obtained cationic regioregular polythiophenes by aminolysis of P3ET with varied chain lengths, and studied DNA binding capability and gene delivery performance...
January 11, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29323402/neurogenic-stuttering-a-review-of-the-literature
#18
REVIEW
C Cruz, H Amorim, G Beca, R Nunes
INTRODUCTION: Neurogenic stuttering is a disorder of neurologic origin in the rhythm of speech during which the patient knows exactly what he wants to say but is unable to because of an involuntary prolongation, cessation or repetition of a sound. AIM: To assemble new insights regarding the epidemiology, pathophysiology, diagnosis, evaluation and treatment of neurogenic stuttering. DEVELOPMENT: A review of all PubMed and Scopus published articles between January 2000 and September 2016 was performed...
January 16, 2018: Revista de Neurologia
https://www.readbyqxmd.com/read/29321935/desquamative-interstitial-pneumonia-complicated-by-diffuse-alveolar-haemorrhage
#19
Ayako Matsuo, Nobuhiro Matsumoto, Akiko Kitamura, Hironobu Tsubouchi, Shigehisa Yanagi, Masamitsu Nakazato
We report a rare case of desquamative interstitial pneumonia (DIP) with diffuse alveolar haemorrhage (DAH). A 56-year-old man diagnosed with DIP by surgical lung biopsy 2 years ago was admitted to our hospital because of severe acute respiratory failure. The DIP had progressed despite smoking cessation. On admission, the patient appeared extremely ill, and physical examination revealed respiratory distress. The patient required mechanical ventilation. High-resolution computed tomography showed diffuse ground glass opacity in both lungs...
February 2018: Respirology Case Reports
https://www.readbyqxmd.com/read/29320324/spectrum-of-coronary-artery-aneurysms-from-the-radiologic-pathology-archives
#20
Jean Jeudy, Charles S White, Seth J Kligerman, Jonathan L Killam, Allen P Burke, Jacob W Sechrist, Amar B Shah, Rydhwana Hossain, Aletta Ann Frazier
Advances in medical diagnosis reveal that coronary artery aneurysms (CAAs) may develop in several clinical scenarios and manifest variable symptoms, imaging appearances, and outcomes. Aneurysms are pathologically classified into three groups: atherosclerotic, inflammatory, and noninflammatory. The last category is associated with congenital, inherited, and connective tissue disorders. Overlap exists among the groups, because secondary atherosclerotic change may be present in an aneurysm of any cause. Atherosclerosis is the most common cause of CAAs in adults, and inflammation is considered the underlying mechanism...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
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