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https://www.readbyqxmd.com/read/28331172/an-anti-coagulation-conundrum-implantation-of-total-artificial-heart-in-a-patient-with-heparin-induced-thrombocytopenia-type-ii
#1
Theodore J Cios, Yuliana Salamanca-Padilla, Dmitri Guvakov
BACKGROUND Heparin-induced thrombocytopenia (HIT) is a rare but life-threatening complication of heparin administration. It can present a major clinical dilemma for physicians caring for patients requiring life-saving urgent or emergent cardiac surgery. Studies have been published examining the use of alternative anticoagulants for patients undergoing cardiopulmonary bypass (CPB), however, evidence does not clearly support any particular approach. Presently, there are no large-scale, prospective randomized studies examining the impact of alternative anticoagulants on clinical outcomes for HIT-positive patients requiring cardiac surgery...
March 23, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28283929/molecular-docking-studies-to-explore-potential-binding-pockets-and-inhibitors-for-chikungunya-virus-envelope-glycoproteins
#2
Phuong T V Nguyen, Haibo Yu, Paul A Keller
The chikungunya virus (CHIKV) envelope glycoproteins are considered important potential targets for anti-CHIKV drug discovery due to their crucial roles in virus attachment and virus entry. In this study, using two available crystal structures of the immature and mature forms of envelope glycoproteins, virtual screenings based on blind dockings and focused dockings were carried out to identify potential binding pockets and hit compounds for the virus. The chemical library database of compounds, NCI Diversity Set II, was used in these docking studies...
March 11, 2017: Interdisciplinary Sciences, Computational Life Sciences
https://www.readbyqxmd.com/read/28258977/different-sensitivities-of-photosystem-ii-in-green-algae-and-cyanobacteria-to-phenylurea-and-phenol-type-herbicides-effect-on-electron-donor-side
#3
Ekaterina K Yotsova, Martin A Stefanov, Anelia G Dobrikova, Emilia L Apostolova
The effects of short-term treatment with phenylurea (DCMU, isoproturon) and phenol-type (ioxynil) herbicides on the green alga Chlorella kessleri and the cyanobacterium Synechocystis salina with different organizations of photosystem II (PSII) were investigated using pulse amplitude modulated (PAM) chlorophyll fluorescence and photosynthetic oxygen evolution measured by polarographic oxygen electrodes (Clark-type and Joliot-type). The photosynthetic oxygen evolution showed stronger inhibition than the PSII photochemistry...
March 4, 2017: Zeitschrift Für Naturforschung. C, A Journal of Biosciences
https://www.readbyqxmd.com/read/28251664/preservation-of-skeletal-muscle-mitochondrial-content-in-older-adults-relationship-between-mitochondria-fibre-type-and-high-intensity-exercise-training
#4
Victoria L Wyckelsma, Itamar Levinger, Michael J McKenna, Luke E Formosa, Michael T Ryan, Aaron C Petersen, Mitchell J Anderson, Robyn M Murphy
KEYPOINTS SUMMARY: Ageing is associated with an upregulation of mitochondrial dynamics proteins, mitofusin 2 (Mfn2) and mitochondrial dynamics protein 49 (MiD49) in human skeletal muscle, the increased abundance of Mfn2 is exclusive to Type II muscle fibres. These changes occur despite a similar content of mitochondria, as measured by COXIV, NDUFA9 and complexes in their native states (Blue Native PAGE). Following 12 weeks of High-Intensity Training (HIT), older adults exhibit a robust increase in mitochondria content...
March 1, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28246189/aee788-inhibits-basal-body-assembly-and-blocks-dna-replication-in-the-african-trypanosome
#5
Catherine Sullenberger, Daniel Pique, Yuko Ogata, Kojo Mensa-Wilmot
Trypanosoma brucei causes human African trypanosomiasis (HAT). The pyrrolopyrimidine AEE788 (a hit for anti-HAT drug discovery) associates with three trypanosome protein kinases. Herein we delineate the effects of AEE788 on T. brucei using chemical biology strategies. AEE788 treatment inhibits DNA replication in the kinetoplast (mitochondrial nucleoid) and nucleus. In addition, AEE788 blocks duplication of the basal body and the bilobe without affecting mitosis. Thus, AEE788 prevents entry into S phase of the cell division cycle...
February 28, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28245710/diabetes-and-pulmonary-tuberculosis-a-global-overview-with-special-focus-on-the-situation-in-asian-countries-with-high-tb-dm-burden
#6
Chunlan Zheng, Minhui Hu, Feng Gao
BACKGROUND: The double burden of tuberculosis (TB) and diabetes mellitus (DM) is hitting certain Asian countries harder than other areas. In a global estimate, 15% of all TB cases could be attributable to DM, with 40% of those cases coming from India and China. Many other countries of South, East, and South-East Asia are of particular concern given their TB burdens, large projected increases in DM prevalence, and population size. OBJECTIVE: In this narrative review, we aimed to: (i) give an overall insight into the evidence on TB-DM epidemiology from high double burden Asian countries, (ii) present the evidence on bi-directional screening implementation in this region, (iii) discuss possible factors related to higher TB susceptibility of Asian diabetic patients, and (iv) identify TB-DM comorbidity treatment challenges...
2017: Global Health Action
https://www.readbyqxmd.com/read/28242581/identification-of-potent-virtual-leads-and-adme-prediction-of-isoxazolidine-podophyllotoxin-derivatives-as-topoisomerase-ii-and-tubulin-inhibitors
#7
Majdi M Bkhaitan, Agha Zeeshan Mirza, Hina Shamshad, Hamed I Ali
Towards the design of new class of podophyllotoxin to target topoisomerase II and tubulin as substantial target in cancer therapy, a series of isoxazolidine podophyllotoxin derivatives were designed. Topoisomerase in complex with etoposide and four β-tubulin in complex with zampanolide, taxol, vinblastine or colchicine were used as targets using GOLD5.2.2 as a docking module. The revealed key structural features of the highest fitness into tubulin domain have been explained as follows: (1) trans orientation of the lactone (ring D) with 5a-β, 8a-α configuration; (2) dioxolane in ring A; (3) free rotation of ring E; (4) α (R) or β (S) configuration has equal fitness in position 5; (5) 4'-OMe; (6) phosphoramide linkage; (7) ethylene bridge between the phosphate and isoxazolidine ring; (8) benzyl moiety at N(2)-position of isoxazolidine ring; and (9) position 5 of isoxazolidine ring accommodated with 6-bromo-9H-purine, 2-amino-6H-purin-6-one, or N-(2-oxopyrimidin-4-yl) acetamide...
February 9, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28241943/the-impact-of-health-information-technology-on-organ-transplant-care-a-systematic-review
#8
REVIEW
Zahra Niazkhani, Habibollah Pirnejad, Parviz Rashidi Khazaee
BACKGROUND: Health Information Technology (HIT) has a potential to promote transplant care. However, a systematic appraisal on how HIT application has so far affected transplant care is greatly missing from the literature. We systematically reviewed trials that evaluated HIT impact on process and patient outcomes as well as costs in organ transplant care. METHODS: A systematic search was conducted in OVID versions of MEDLINE, EMBASE, Cumulative Index to Nursing and Allied Health Literature (CINAHL), the Cochrane, and IEEE databases from January 1990 to December 2015...
April 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/28240184/from-protein-structure-to-small-molecules-recent-advances-and-applications-to-fragment-based-drug-discovery
#9
Leonardo G Ferreira, Adriano D Andricopulo
Fragment-based drug discovery (FBDD) is a broadly used strategy in structure-guided ligand design, whereby low-molecular weight hits move from lead-like to drug-like compounds. Over the past 15 years, an increasingly important role of the integration of these strategies into industrial and academic research platforms has been successfully established, allowing outstanding contributions to drug discovery. One important factor for the current prominence of FBDD is the better coverage of the chemical space provided by fragment-like libraries...
February 24, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28230762/the-development-of-ck2-inhibitors-from-traditional-pharmacology-to-in-silico-rational-drug-design
#10
REVIEW
Giorgio Cozza
Casein kinase II (CK2) is an ubiquitous and pleiotropic serine/threonine protein kinase able to phosphorylate hundreds of substrates. Being implicated in several human diseases, from neurodegeneration to cancer, the biological roles of CK2 have been intensively studied. Upregulation of CK2 has been shown to be critical to tumor progression, making this kinase an attractive target for cancer therapy. Several CK2 inhibitors have been developed so far, the first being discovered by "trial and error testing". In the last decade, the development of in silico rational drug design has prompted the discovery, de novo design and optimization of several CK2 inhibitors, active in the low nanomolar range...
February 20, 2017: Pharmaceuticals
https://www.readbyqxmd.com/read/28228972/emergency-preparedness-and-management-at-the-university-of-l-aquila-central-italy-and-the-role-of-students-associations-in-the-april-6th-2009-earthquake
#11
Michele Magni, Rita Fraboni, Fausto Marincioni
INTRODUCTION: On April 6th 2009 an earthquake of Mw=6.3 hit the historical downtown of L'Aquila and its hinterland causing more than 300 fatalities and severe damage to private and public buildings. At the time, the University of L'Aquila represented a major source of employment and income for the city. The earthquake impacted both the facilities and the administrative, financial and patrimonial activities of the university, bringing into the open the tendency - widespread in Italy - to rely on adaptive tactics rather than on strategic pre-disaster plans...
January 12, 2017: PLoS Currents
https://www.readbyqxmd.com/read/28219086/first-report-of-awake-craniotomy-of-a-famous-musician-suprasellar-tumor-surgery-of-pianist-clara-haskil-in-1942
#12
Elena Romana Gasenzer, Ayhan Kanat, Edmund A M Neugebauer
Clara Haskil (January 7, 1895-December 7, 1960) was one of the most famous female pianists of the 20th century. In her life and work she set new standards in piano playing. However, her career was beset by poor health and the adversities of two world wars. In her lifetime Haskil had three major disorders: juvenile scoliosis requiring treatment in her adolescence, a tumor of the sellar region requiring surgery at age 47 years, and a traumatic brain injury causing her death at the age of 65. Her medical history illustrates the development of surgical methods and rehabilitation in medicine before and after World War II...
February 20, 2017: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28157066/multiparametric-mri-in-detection-and-staging-of-prostate-cancer
#13
REVIEW
Lars Boesen
BACKGROUND: Prostate cancer (PCa) is the second leading cause of cancer-related mortality and the most frequently diagnosed male malignant disease among men in the Nordic countries. The manifestation of PCa ranges from indolent to highly aggressive disease and due to this high variation in PCa progression, the diagnosis and subsequent treatment planning can be challenging. The current diagnostic approach with PSA testing and digital rectal examination followed by transrectal ultrasound biopsies (TRUS-bx) lack in both sensitivity and specificity in PCa detection and offers limited information about the aggressiveness and stage of the cancer...
February 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28154947/autonomic-cardiovascular-modulation-in-masters-and-young-cyclists-following-high-intensity-interval-training
#14
Nattai R Borges, Peter R Reaburn, Thomas M Doering, Christos K Argus, Matthew W Driller
PURPOSE: This study aimed at examining the autonomic cardiovascular modulation in well-trained masters and young cyclists following high-intensity interval training (HIT). METHODS: Nine masters (age 55.6 ± 5.0 years) and eight young cyclists (age 25.9 ± 3.0 years) completed a HIT protocol of 6 x 30 sec at 175% of peak power output, with 4.5-min' rest between efforts. Immediately following HIT, heart rate and R-R intervals were monitored for 30-min during passive supine recovery...
February 2, 2017: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/28153734/high-throughput-screening-for-survivin-and-borealin-interaction-inhibitors-in-hepatocellular-carcinoma
#15
Liyun Yue, Lu Li, Dan Li, Zhuo Yang, Shuai Han, Ming Chen, Shujue Lan, Xiaojun Xu, Lijian Hui
Survivin, a key member of the chromatin passenger complex (CPC), is often highly expressed in human cancers, making it a promising target for cancer treatment. Out of the numerous reported Survivin inhibitors, YM155 is only one entering clinical trial, but was recently failed in the Phase II trial. It is important to develop Survivin inhibitors with new strategies. We recently reported that both Survivin and its binding protein Borealin in the CPC complex are essential for the development of hepatocellular carcinoma, suggesting that disrupting the interaction between Survivin and Borealin would be a promising strategy...
March 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28139054/ustekinumab-for-the-treatment-of-acrodermatitis-continua-of-hallopeau-refractory-to-anti-tnf-agents
#16
Esra Adışen, İlkay Özer, Berkay Temel, Mehmet Ali Gürer
Acrodermatitis continua of Hallopeau (ACH) is a variant of pustular psoriasis that is often very difficult to treat. Almost all anti-psoriatic agents have been used in the treatment of ACH. Ustekinumab, a fully human monoclonal antibody of the IgG1 class, is directed to the shared p40 subunit of cytokines IL-12 and IL-23. Herein, we present our experience of ustekinumab use in a 50-year-old man who was resistant to anti-tumor necrosis factor-α agents. Though initial therapy with ustekinumab achieved a sustained response in our patient, after a seven months of interruption, retreatment resulted in a slower and poorer response than the initial regimen...
January 30, 2017: Dermatologic Therapy
https://www.readbyqxmd.com/read/28128000/assessment-and-rehabilitation-of-chronic-low-back-pain-in-baseball-part-ii
#17
Joseph G Wasser, Jason L Zaremski, Daniel C Herman, Heather K Vincent
Repetitive throwing and hitting motions in baseball place mechanical stresses to the lumbar spine which may cause low back pain (LBP). Pain may be due to vertebral stress reactions or insufficiency fractures, intervertebral disc degeneration or intervertebral disc herniation. Untreated chronic conditions have high potential to lead to a more significant injury such as spondylolysis. Chronic LBP increases the risk for missed playing time, early career termination and lower quality of life after retirement. Proper clinical assessment and prevention/rehabilitation of LBP in this population is thus important for performance, play time and overall long-term quality of life...
January 27, 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/28088938/clinical-analysis-of-54-cases-of-large-area-soft-tissue-avulsion-in-the-lower-limb
#18
Yu Chen, Lei Liu
OBJECTIVE: To assess the clinical curative effect of different treatment methods for large area avulsion injury in the lower limb. METHODS: Between January 2010 and December 2013, 54 patients with large area avulsion injury in the lower limb were treated in the trauma center of our hospital, including 34 males and 20 females with a mean age of 35.7 years (range, 16-65 years). The injury mechanism was traffic accident in 44 cases, hitting by heavy objects in 8 cases, and fall from height in 2 cases, involving 31 thighs, 19 legs and 4 feet involved...
December 1, 2016: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28072524/common-hits-approach-combining-pharmacophore-modeling-and-molecular-dynamics-simulations
#19
Marcus Wieder, Arthur Garon, Ugo Perricone, Stefan Boresch, Thomas Seidel, Anna Maria Almerico, Thierry Langer
We present a new approach that incorporates flexibility based on extensive MD simulations of protein-ligand complexes into structure-based pharmacophore modeling and virtual screening. The approach uses the multiple coordinate sets saved during the MD simulations and generates for each frame a pharmacophore model. Pharmacophore models with the same pharmacophore features are pooled. In this way the high number of pharmacophore models that results from the MD simulation is reduced to only a few hundred representative pharmacophore models...
January 20, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28059695/a-systematic-scoping-review-of-the-domains-and-innovations-in-secondary-uses-of-digitised-health-related-data
#20
Ann R R Robertson, Ulugbek Nurmatov, Harpreet S Sood, Kathrin Cresswell, Pam Smith, Aziz Sheikh
BACKGROUND: Substantial investments are being made in health -information -technology (HIT) based on assumptions that these systems will save costs through increased quality, safety and efficiency of care provision. Whilst -short-term -benefits have often proven difficult to demonstrate, there is increasing interest in achieving benefits in the medium and long term through secondary uses of -HIT-derived data. AIMS: We aimed to describe the range of secondary uses of HIT-derived data in the international literature and identify innovative developments of particular relevance to UK policymakers and managers...
November 10, 2016: Journal of Innovation in Health Informatics
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