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https://www.readbyqxmd.com/read/28820759/thromboprophylaxis-in-spinal-surgery
#1
William P Mosenthal, David C Landy, Haroutioun H Boyajian, Olumuyiwa A Idowu, Lewis L Shi, Edwin Ramos, Michael J Lee
STUDY DESIGN: Systematic review and meta-analysis OBJECTIVE.: Determine the incidence of deep vein thrombosis (DVT) and pulmonary embolism (PE) in spinal surgery patients receiving no thromboprophylaxis, mechanoprophylaxis, and chemoprophylaxis. SUMMARY OF BACKGROUND DATA: The incidence of thromboembolic complications after spinal surgery is not well established. While a variety of effective mechanical and chemical thromboprophylaxis interventions exist, their role in spinal surgery remains unclear...
August 17, 2017: Spine
https://www.readbyqxmd.com/read/28816188/assessment-of-changes-in-nickel-and-chromium-levels-in-the-gingival-crevicular-fluid-during-fixed-orthodontic-treatment
#2
Vinny Bhasin, Swati J Pustake, Viprat Joshi, Anil Tiwari, Meenakshi Bhasin, Ramandeep S Punia
BACKGROUND: Various components of appliances used in fixed orthodontic treatment are fabricated from materials that are highly resistant in nature and have high strength and biocompatibility. Corrosion of materials occurs inside the oral cavity due to numerous environmental or oral factors that act on them. These factors include temperature, pH variation, salivary conditions, mechanical loads, microbiological and enzymatic activity, and various food components. Gingival crevicular fluid (GCF) is the material obtained from the gingival sulcus and might act as a potential source for various biomarkers in the orthodontic setup because inflammatory-induced response is directly related to orthodontic forces in GCF...
August 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28814608/parasite-altered-feeding-behavior-in-insects-integrating-functional-and-mechanistic-research-frontiers
#3
REVIEW
Melissa A Bernardo, Michael S Singer
Research on parasite-altered feeding behavior in insects is contributing to an emerging literature that considers possible adaptive consequences of altered feeding behavior for the host or the parasite. Several recent ecoimmunological studies show that insects can adaptively alter their foraging behavior in response to parasitism. Another body of recent work shows that infection by parasites can change the behavior of insect hosts to benefit the parasite; manipulations of host feeding behavior may be part of this phenomenon...
August 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28814193/sirolimus-and-mirabegron-interaction-in-a-hematopoietic-cell-transplant-patient
#4
Jeff A Engle, Christina Fair
Purpose Hematopoietic cell transplant patients are exposed to numerous classes of medications. Transplant practitioners must vigilantly monitor for drug interactions especially involving immunosuppressants. We report a hematopoietic cell transplant patient receiving sirolimus who developed supratherapeutic serum concentrations after initiating mirabegron. Summary A 31-year-old, 98 kg female received a second umbilical cord blood transplant four years after the first transplant for relapsed acute myeloid leukemia...
January 1, 2017: Journal of Oncology Pharmacy Practice
https://www.readbyqxmd.com/read/28812207/the-vaginal-microbiome-and-its-potential-to-impact-efficacy-of-hiv-pre-exposure-prophylaxis-for-women
#5
REVIEW
Jennifer Velloza, Renee Heffron
PURPOSE OF REVIEW: This review describes existing evidence addressing the potential modulation of pre-exposure prophylaxis (PrEP) products, specifically 1% tenofovir (TFV) gel and oral tenofovir-based PrEP, by vaginal dysbiosis and discusses future considerations for delivering novel, long-acting PrEP products to women at high risk for vaginal dysbiosis and HIV. RECENT FINDINGS: We describe results from analyses investigating the modification of PrEP efficacy by vaginal dysbiosis and studies of biological mechanisms that could render PrEP ineffective in the presence of specific microbiota...
August 15, 2017: Current HIV/AIDS Reports
https://www.readbyqxmd.com/read/28807685/an-rna-polymerase-ii-driven-ebola-virus-minigenome-system-as-an-advanced-tool-for-antiviral-drug-screening
#6
Emily V Nelson, Jennifer R Pacheco, Adam Hume, Tessa N Cressey, Laure R Deflubé, John B Ruedas, John H Connor, Hideki Ebihara, Elke Mühlberger
Ebola virus (EBOV) causes a severe disease in humans with the potential for significant international public health consequences. Currently, treatments are limited to experimental vaccines and therapeutics. Therefore, research into prophylaxis and antiviral strategies to combat EBOV infections is of utmost importance. The requirement for high containment laboratories to study EBOV infection is a limiting factor for conducting EBOV research. To overcome this issue, minigenome systems have been used as valuable tools to study EBOV replication and transcription mechanisms and to screen for antiviral compounds at biosafety level 2...
August 11, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28776087/efficacy-of-in-vivo-electroporation-mediated-il-10-gene-delivery-on-survival-of-skin-flaps
#7
S Morteza Seyed Jafari, Maziar Shafighi, Helmut Beltraminelli, Benedikt Weber, Ralph A Schmid, Thomas Geiser, Amiq Gazdhar, Robert E Hunger
Despite advances in understanding the underlying mechanisms of flap necrosis and improvement in surgical techniques, skin flap necrosis after reconstructive surgery remains a crucial issue. We investigated the efficacy of electroporation-mediated IL-10 gene transfer to random skin flap with an aim to accelerate wound healing and improve skin flap survival. Nine male Wistar rats (300-330 g) were divided in two groups (a) control group (n = 5), only surgery no gene transfer, and (b) experimental group, received electroporation-mediated IL-10 gene transfer 24 h before the surgery as prophylaxis (n = 4)...
August 3, 2017: Journal of Membrane Biology
https://www.readbyqxmd.com/read/28770187/t-cell-lymphopenia-detected-by-newborn-screening-in-two-siblings-with-an-xq13-1-duplication
#8
Xavier Rios, Ivan K Chinn, Jordan S Orange, Celine I Hanson, Nicholas L Rider
Newborn screening for severe combined immunodeficiency has proven successful in identifying infants with T-cell deficiencies before they become severely ill. Additionally, the newborn screen can detect subtle early phenotypes that may become severe later in life. We present the case of siblings with features suggestive of T-cell lymphopenia identified as having low T-cell receptor excision circles counts by newborn screening. Expanded immune testing showed robust lymphocyte mitogen and antigen responses with normal vaccine responses and immunoglobulin levels for both boys over time...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28742789/evaluation-of-appropriate-venous-thromboembolism-prophylaxis-in-orthopaedic-trauma-patients-with-symptom-driven-vascular-and-radiographic-studies
#9
Christopher M Domes, Anneliese M Schleyer, James M McQueen, Ronald F Pergamit, Daphne M Beingessner
OBJECTIVE: To evaluate venous thromboembolism (VTE) prophylaxis adherence and effectiveness in orthopaedic trauma patients who had vascular or radiographic studies showing deep vein thromboses (DVTs) or pulmonary emboli (PEs). DESIGN: Retrospective review SETTING:: This study was conducted at a level I trauma center that independently services a 5 state region. The medical records of patients treated surgically between July 2010 and March 2013 were interrogated using a technical tool that electronically captures thrombotic event data from vascular and radiologic imaging studies via natural language processing...
July 24, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28741745/venous-thromboembolism-prophylaxis-in-urology-a-review
#10
REVIEW
Manmeet Saluja, Peter Gilling
Venous thromboembolism is potentially a lethal problem, and is associated with chronic morbidity. Venous thromboembolism is frequently diagnosed after urological surgery, yet the role of perioperative venous thromboembolism prophylaxis is not clearly defined. Any current recommendations are largely based on evidence derived from other surgical specialties. Even within different guidelines, there remains significant variation, suggesting a consensus is required. The present review aims to define the problem of venous thromboembolism within the urological population, and identifies patients at risk...
August 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28741113/approaches-to-prevent-bleeding-associated-with-anticoagulants-current-status-and-recent-developments
#11
REVIEW
Manu Thomas Kalathottukaren, Charles A Haynes, Jayachandran N Kizhakkedathu
Anticoagulants are widely used for the prophylaxis and treatment of cardiovascular disorders and to prevent blood clotting during surgeries. However, the major limitation associated with anticoagulant therapy is bleeding; all the current anticoagulants do have a bleeding risk. The propensity to bleed is much higher among the elderly population and patients with renal insufficiency. Therefore, there is an utmost and urgent clinical need for a highly efficient, nontoxic antidote with excellent anticoagulant reversal activity...
July 24, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28734166/naturally-occurring-immunomodulators-with-antitumor-activity-an-insight-on-their-mechanisms-of-action
#12
REVIEW
Shimaa Ibrahim Abdelmonym Mohamed, Ibrahim Jantan, Md Areeful Haque
Natural products with immunomodulatory activity are widely used in treatment of many diseases including autoimmune diseases, inflammatory disorders in addition to cancer. They gained a great interest in the last decades as therapeutic agents since they provide inexpensive and less toxic products than the synthetic chemotherapeutic agents. Immunomodulators are the agents that have the ability to boost or suppress the host defense response that can be used as a prophylaxis as well as in combination with other therapeutic modalities...
July 19, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28723773/development-and-validation-of-risk-stratification-delirium-prediction-model-for-critically-ill-patients-a-prospective-observational-single-center-study
#13
Yu Chen, Hang Du, Bao-Hua Wei, Xue-Ni Chang, Chen-Ming Dong
The objective is to develop a model based on risk stratification to predict delirium among adult critically ill patients and whether early intervention could be provided for high-risk patients, which could reduce the incidence of delirium.We designed a prospective, observational, single-center study. We examined 11 factors, including age, APACHE-II score, coma, emergency operation, mechanical ventilation (MV), multiple trauma, metabolic acidosis, history of hypertension, delirium and dementia, and application of Dexmedetomidine Hydrochloride...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28721010/antiglioma-effects-of-cytarabine-on-leptomeningeal-metastasis-of-high-grade-glioma-by-targeting-the-pi3k-akt-mtor-pathway
#14
Kai-Hong Zhao, Can Zhang, Yue Bai, Yan Li, Xun Kang, Jian-Xin Chen, Kun Yao, Tao Jiang, Xiao-Song Zhong, Wen-Bin Li
Leptomeningeal metastasis (LM) of high-grade glioma is a highly lethal disease requiring new effective therapeutic measures. For both de novo or relapsed glioma with LM, intrathecal cytarabine chemotherapy is not frequently used for first-line and relapse protocols. We encountered a clinical case demonstrating effective application of cytarabine in high-grade glioma with LM, prompting us to explore the effects of cytarabine on malignant glioma and molecular mechanisms of such effects through in vivo and in vitro experiments...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28707585/migraine-neurogenic-inflammation-drug-development-pharmacochemical-aspects
#15
Melinda Lukács, János Tajti, Ferenc Fülöp, József Toldi, Lars Edvinsson, László Vécsei
BACKGROUND: Migraine is a primary headache disorder. Despite numerous studies conducted with the aim to understand the pathophysiology of migraine, several aspects are still unclear. The trigeminovascular system plays a key role. Neurogenic inflammation is presumed to be an important factor in migraine pathophysiology, mediated by the activation of primary neurons, leading to the release of various pro-inflammatory neuropeptides and neurotransmitters such as Calcitonin Gene-Related Peptide (CGRP), substance P (SP), and vasoactive intestinal peptide (VIP)...
July 12, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28706134/heparin-antagonizes-cisplatin-resistance-of-a2780-ovarian-cancer-cells-by-affecting-the-wnt-signaling-pathway
#16
Daniel Bastian Pfankuchen, Fabian Baltes, Tahira Batool, Jin-Ping Li, Martin Schlesinger, Gerd Bendas
Low molecular weight heparin (LMWH), the guideline based drug for prophylaxis and treatment of cancer-associated thrombosis, was recently shown to sensitize cisplatin resistant A2780cis human ovarian cancer cells for cisplatin cytotoxicity upon 24 h pretreatment with 50 μg × mL-1 of the LMWH tinzaparin in vitro, equivalent to a therapeutic dosage. Thereby, LMWH induced sensitization by transcriptional reprogramming of A2780cis cells via not yet elucidated mechanisms that depend on cellular proteoglycans. Here we aim to illuminate the underlying molecular mechanisms of LMWH in sensitizing A2780cis cells for cisplatin...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28701603/is-endothelin-gene-polymorphism-associated-with-postoperative-atrial-fibrillation-in-patients-undergoing-coronary-artery-bypass-grafting
#17
Ira Dhawan, Minati Choudhury, Milind P Hote, Anushree Gupta, Poonam Malhotra, Kalaivani V Mani
BACKGROUND: The mechanism of development of atrial fibrillation (AF) in patients undergoing coronary artery bypass grafting (CABG) has not been clearly defined, and the involvement of multiple factors such as advanced age, withdrawal of β-blockers, inadequate atrial protection, and electrolyte imbalance, particularly hypomagnesemia has been documented by several authors. Despite all the available pharmacologic prophylaxis, incidence of AF still remains high in this group of patients...
July 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28700539/propranolol-treatment-prevents-chronic-central-sensitization-induced-by-repeated-dural-stimulation
#18
Nelly Boyer, Jérémy Signoret-Genest, Alain Artola, Radhouane Dallel, Lénaïc Monconduit
Migraine is currently conceptualized as a chronic disease with episodic manifestations. In some patients, migraine attack frequency increases, leading to chronic migraine. Daily preventive therapy is initiated to decrease attack frequency. Propranolol, a first-line medication for migraine prophylaxis, reduces attack frequency in nearly 50% of patients receiving it. However, the mechanisms of its antimigraine action are unclear. We examined the effect of daily propranolol treatment (10 mg·kg per os, 8 days) in a rat model of recurrent activation of dural nociceptors (repeated infusion of an inflammatory soup (IS) on the dura through a cannula every 2-3 days)...
July 8, 2017: Pain
https://www.readbyqxmd.com/read/28700413/venous-thromboembolism-after-major-venous-injuries-competing-priorities
#19
Brian Frank, Zoё Maher, Joshua P Hazelton, Shelby Resnick, Elizabeth Dauer, Anna Goldenberg, Andrea L Lubitz, Brian P Smith, Noelle N Saillant, Patrick M Reilly, Mark J Seamon
BACKGROUND: Venous thromboembolism (VTE) after major vascular injury (MVI) is particularly challenging as the competing risk of thrombosis and embolization after direct vessel injury must be balanced with risk of bleeding after surgical repair. We hypothesized that venous injuries, repair type and intraoperative anticoagulation would influence VTE formation after MVI. METHODS: A multi-institution, retrospective cohort study of consecutive MVI patients was conducted at 3 urban, level-I centers (2005-2013)...
July 12, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28699040/-neuroprotective-medication-in-vestibular-schwannoma-surgery
#20
REVIEW
C Scheller, E Herzfeld, C Strauss
BACKGROUND: Except for glucocorticoids there is a lack of neuroprotective medication in neurosurgical interventions. OBJECTIVE: An overview of clinical trials investigating administration of the calcium antagonist nimodipine and hydroxyethyl starch (HES) in vestibular schwannoma (VS) surgery is given. Basic research is addressed and potential neuroprotective effect mechanisms are discussed, as are perspectives for application of the concept to other types of surgery with a risk postoperative impairment of nerve function...
July 11, 2017: HNO
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