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https://www.readbyqxmd.com/read/28431428/computational-and-in-vitro-experimental-investigation-of-intrathecal-drug-distribution-parametric-study-of-the-effect-of-injection-volume-cerebrospinal-fluid-pulsatility-and-drug-uptake
#1
Kevin M Tangen, Roxanne Leval, Ankit I Mehta, Andreas A Linninger
BACKGROUND: Intrathecal drug delivery is an attractive option to circumvent the blood-brain barrier for pain management through its increased efficacy of pain relief, reduction in adverse side effects, and cost-effectiveness. Unfortunately, there are limited guidelines for physicians to choose infusion or drug pump settings to administer therapeutic doses to specific regions of the spine or the brain. Although empiric trialing of intrathecal drugs is critical to determine the sustained side effects, currently there is no inexpensive in vitro method to guide the selection of spinal drug delivery parameters...
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28431060/catheter-ablation-vs-antiarrhythmic-drug-therapy-in-patients-with-symptomatic-atrioventricular-nodal-re-entrant-tachycardia-a-randomized-controlled-trial
#2
Demosthenes G Katritsis, Theodoros Zografos, George D Katritsis, Eleftherios Giazitzoglou, Vasilios Vachliotis, George Paxinos, A John Camm, Mark E Josephson
Aims: To conduct a randomized trial in order to guide the optimum therapy of symptomatic atrioventricular nodal re-entrant tachycardia (AVNRT). Methods and Results: Patients with at least one symptomatic episode of tachycardia per month and an electrophysiologic diagnosis of AVNRT were randomly assigned to catheter ablation or chronic antiarrhythmic drug (AAD) therapy with bisoprolol (5 mg od) and/or diltiazem (120-300 mg od). All patients were properly educated to treat subsequent tachycardia episodes with autonomic manoeuvres or a 'pill in the pocket' approach...
April 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28430684/flurbiprofen-axetil-provides-effective-analgesia-without-changing-the-pregnancy-rate-in-ultrasound-guided-transvaginal-oocyte-retrieval-a-double-blind-randomized-controlled-trial
#3
Hong Zhao, Yi Feng, Yan Jiang, Qun Lu
BACKGROUND: In this prospective double-blind randomized study, we evaluated the analgesic effect and potential effect on pregnancy rate of the nonsteroidal anti-inflammatory drug flurbiprofen axetil in patients undergoing ultrasound-guided transvaginal oocyte retrieval under propofol-remifentanil anesthesia. METHODS: A total of 200 patients scheduled to undergo ultrasound-guided transvaginal oocyte retrieval were randomly allocated to receive 1.5 mg/kg of flurbiprofen axetil (FA group) or placebo (control group) 30 minutes before the procedure...
April 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28430013/barriers-to-access-to-sterile-syringes-as-perceived-by-pharmacists-and-injecting-drug-users-implications-for-harm-reduction-in-lebanon
#4
Ali Ghaddar, Karine Nassar, Ghadier Elsoury
BACKGROUND: Access to sterile syringes to injecting drug users (IDU) reduces sharing behavior and prevents the transmission of HIV. OBJECTIVES: To describe the barriers to access to sterile syringes for IDUs in Lebanon from the perspectives of pharmacists and IDUs. METHODS: in this qualitative study conducted in Lebanon, data were collected from 72 syringe purchase tests at pharmacies, 64 interviewees with pharmacists and 2 focus groups with injecting drug users...
April 21, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28428283/regulatory-aspects-of-optical-methods-and-exogenous-targets-for-cancer-detection
#5
Willemieke S Tummers, Jason M Warram, Kiranya E Tipirneni, John Fengler, Paula Jacobs, Lalitha Shankar, Lori Henderson, Betsy Ballard, Brian W Pogue, Jamey P Weichert, Michael Bouvet, Jonathan Sorger, Christopher H Contag, John V Frangioni, Michael F Tweedle, James P Basilion, Sanjiv S Gambhir, Eben L Rosenthal
Considerable advances in cancer-specific optical imaging have improved the precision of tumor resection. In comparison to traditional imaging modalities, this technology is unique in its ability to provide real-time feedback to the operating surgeon. Given the significant clinical implications of optical imaging, there is an urgent need to standardize surgical navigation tools and contrast agents to facilitate swift regulatory approval. Because fluorescence-enhanced surgery requires a combination of both device and drug, each may be developed in conjunction, or separately, which are important considerations in the approval process...
April 20, 2017: Cancer Research
https://www.readbyqxmd.com/read/28428042/synthesis-and-biological-evaluation-of-selective-tubulin-inhibitors-as-anti-trypanosomal-agents
#6
Viharika Bobba, Vishal Nanavaty, Nethrie D Idippily, Anran Zhao, Bibo Li, Bin Su
African trypanosomiasis is still a threat to human health due to the severe side-effects of current drugs. We identified selective tubulin inhibitors that showed the promise to the treatment of this disease, which was based on the tubulin protein structural difference between mammalian and trypanosome cells. Further lead optimization was performed in the current study to improve the efficiency of the drug candidates. We used Trypanosoma brucei brucei cells as the parasite model, and human normal kidney cells and mouse macrophage cells as the host model to evaluate the compounds...
April 8, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28427112/acute-encephalopathy-in-a-2-year-old-pot-bellied-pig-following-accidental-intoxication-with-clonazepam
#7
Emilie L Setlakwe, Amy L Johnson
OBJECTIVE: To describe a case of successful management of clonazepam toxicity causing encephalopathy in a pot-bellied pig. CASE SUMMARY: A 2-year-old female pot-bellied pig weighing 13.5 kg was presented for evaluation of clinical signs of acute encephalopathy. Based on the animal's history and clinical signs, a tentative diagnosis of benzodiazepine (BZP) intoxication was made. The results of a urinary drug screening test designed to detect illicit substances in human urine indicated benzodiazepine exposure...
April 20, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28426890/fine-mapping-of-lipid-regions-in-global-populations-discovers-ethnic-specific-signals-and-refines-previously-identified-lipid-loci
#8
Niha Zubair, Mariaelisa Graff, Jose Luis Ambite, William S Bush, Gleb Kichaev, Yingchang Lu, Ani Manichaikul, Wayne H-H Sheu, Devin Absher, Themistocles L Assimes, Suzette J Bielinski, Erwin P Bottinger, Petra Buzkova, Lee-Ming Chuang, Ren-Hua Chung, Barbara Cochran, Logan Dumitrescu, Omri Gottesman, Jeffrey W Haessler, Christopher Haiman, Gerardo Heiss, Chao A Hsiung, Yi-Jen Hung, Chii-Min Hwu, Jyh-Ming J Juang, Loic Le Marchand, I-Te Lee, Wen-Jane Lee, Li-An Lin, Danyu Lin, Shih-Yi Lin, Rachel H Mackey, Lisa W Martin, Bogdan Pasaniuc, Ulrike Peters, Irene Predazzi, Thomas Quertermous, Alex P Reiner, Jennifer Robinson, Jerome I Rotter, Kelli K Ryckman, Pamela J Schreiner, Eli Stahl, Ran Tao, Michael Y Tsai, Lindsay L Waite, Tzung-Dau Wang, Steven Buyske, Yii-Der Ida Chen, Iona Cheng, Dana C Crawford, Ruth J F Loos, Stephen S Rich, Myriam Fornage, Kari E North, Charles Kooperberg, Cara L Carty
Genome-wide association studies have identified over 150 loci associated with lipid traits, however, no large-scale studies exist for Hispanics and other minority populations. Additionally, the genetic architecture of lipid-influencing loci remains largely unknown. We performed one of the most racially/ethnically diverse fine-mapping genetic studies of HDL-C, LDL-C, and triglycerides to-date using SNPs on the MetaboChip array on 54,119 individuals: 21,304 African Americans, 19,829 Hispanic Americans, 12,456 Asians, and 530 American Indians...
December 15, 2016: Human Molecular Genetics
https://www.readbyqxmd.com/read/28426546/methamphetamine-use-and-dependence-in-vulnerable-female-populations
#9
Phunnapa Kittirattanapaiboon, Soontaree Srikosai, Apisak Wittayanookulluk
PURPOSE OF REVIEW: The study reviews recent publications on methamphetamine use and dependence women in term of their epidemic, physical health impact, psychosocial impacts, and also in the identified vulnerable issues. RECENT FINDINGS: Studies of vulnerable populations of women are wide ranging and include sex workers, sexual minorities, homeless, psychiatric patients, suburban women, and pregnant women, in which amphetamine type stimulants (ATSs) are the most commonly reported illicit drug used among them...
April 19, 2017: Current Opinion in Psychiatry
https://www.readbyqxmd.com/read/28424826/synergizing-13-c-metabolic-flux-analysis-and-metabolic-engineering-for-biochemical-production
#10
Weihua Guo, Jiayuan Sheng, Xueyang Feng
Metabolic engineering of industrial microorganisms to produce chemicals, fuels, and drugs has attracted increasing interest as it provides an environment-friendly and renewable route that does not depend on depleting petroleum sources. However, the microbial metabolism is so complex that metabolic engineering efforts often have difficulty in achieving a satisfactory yield, titer, or productivity of the target chemical. To overcome this challenge, (13)C Metabolic Flux Analysis ((13)C-MFA) has been developed to investigate rigorously the cell metabolism and quantify the carbon flux distribution in central metabolic pathways...
April 20, 2017: Advances in Biochemical Engineering/biotechnology
https://www.readbyqxmd.com/read/28421842/the-management-of-ventricular-dysrhythmia-in-aconite-poisoning
#11
James M Coulson, Thomas M Caparrotta, John P Thompson
INTRODUCTION: Aconite poisoning is relatively rare but is frequently complicated by ventricular dysrhythmias, which may be fatal. Molecular basis of aconite alkaloid ventricular arrhythmogenicity: Aconite exerts its toxic effects due to the presence of an admixture of alkaloids present in all parts of the plant. The major target of these aconite alkaloids is the fast voltage-gates sodium channel, where they cause persistent activation. This blockade of the channel in the activated state promotes automaticity within the ventricular myocardium and the generation of ventricular arrhythmias...
June 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28421162/r-ideal-a-framework-for-systematic-clinical-evaluation-of-technical-innovations-in-radiation-oncology
#12
Helena M Verkooijen, Linda G W Kerkmeijer, Clifton D Fuller, Robbert Huddart, Corinne Faivre-Finn, Marcel Verheij, Stella Mook, Arjun Sahgal, Emma Hall, Chris Schultz
The pace of innovation in radiation oncology is high and the window of opportunity for evaluation narrow. Financial incentives, industry pressure, and patients' demand for high-tech treatments have led to widespread implementation of innovations before, or even without, robust evidence of improved outcomes has been generated. The standard phase I-IV framework for drug evaluation is not the most efficient and desirable framework for assessment of technological innovations. In order to provide a standard assessment methodology for clinical evaluation of innovations in radiotherapy, we adapted the surgical IDEAL framework to fit the radiation oncology setting...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28421121/availability-pharmaceutics-security-pharmacokinetics-and-pharmacological-activities-of-patchouli-alcohol
#13
REVIEW
Guanying Hu, Cheng Peng, Xiaofang Xie, Sanyin Zhang, Xiaoyu Cao
Patchouli alcohol (PA), a tricyclic sesquiterpene, is one of the critical bioactive ingredients and is mainly isolated from aerial part of Pogostemon cablin (known as guanghuoxiang in China) belonging to Labiatae. So far, PA has been widely applied in perfume industries. This review was written with the use of reliable information published between 1974 and 2016 from libraries and electronic researches including NCKI, PubMed, Reaxys, ACS, ScienceDirect, Springer, and Wiley-Blackwell, aiming at presenting comprehensive outline of security, pharmacokinetics, and bioactivities of PA and at further providing a potential guide in exploring the PA and its use in various medical fields...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28420679/tumor-microenvironment-targeting-and-responsive-peptide-based-nanoformulations-for-improved-tumor-therapy
#14
Hao Qin, Yanping Ding, Ayeesha Mujeeb, Ying Zhao, Guangjun Nie
Tumor microenvironment participates in all stages of tumor progression and has emerged as a promising therapeutic target for cancer therapy. Rapid progress in the field of molecular self-assembly using various biological molecules has resulted in the fabrication of nanoformulations, specifically targeting and regulating the microenvironment components to inhibit tumor malignancies. This inhibition process is based on the differentiating biophysicochemical cues guiding tumor and normal tissue microenvironments...
April 18, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28420177/molecular-hybridization-guided-one-pot-multicomponent-synthesis-of-turmerone-motif-fused-3-3-pyrrolidinyl-dispirooxindoles-via-a-1-3-dipolar-cycloaddition-reaction
#15
Bing Lin, Gen Zhou, Yi Gong, Qi-Di Wei, Min-Yi Tian, Xiong-Li Liu, Ting-Ting Feng, Ying Zhou, Wei-Cheng Yuan
Described herein is the development of a facile and efficient methodology for the synthesis of novel turmerone motif-fused 3,3'-pyrrolidinyl-dispirooxindoles 3-5 via a multicomponent 1,3-dipolar cycloaddition of dienones 2 with azomethine ylides (thermally generated in situfrom isatins and proline or thioproline or sarcosine). Products bearing four or three consecutive stereocenters consist of two oxindole moieties and a pyrrolidinyl core, including vicinal spiroquaternary stereocenters fused in one ring structure were smoothly obtained in high yields (up to 93% yield) with good diastereoselectivity (up to >20:1)...
April 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28418852/structural-homologies-between-phenformin-lipitor-and-gleevec-aim-the-same-metabolic-oncotarget-in-leukemia-and-melanoma
#16
REVIEW
Gábor Somlyai, T Que Collins, Emmanuelle J Meuillet, Patel Hitendra, Dominic P D'Agostino, László G Boros
Phenformin's recently demonstrated efficacy in melanoma and Gleevec's demonstrated anti-proliferative action in chronic myeloid leukemia may lie within these drugs' significant pharmacokinetics, pharmacodynamics and structural homologies, which are reviewed herein. Gleevec's success in turning a fatal leukemia into a manageable chronic disease has been trumpeted in medical, economic, political and social circles because it is considered the first successful targeted therapy. Investments have been immense in omics analyses and while in some cases they greatly helped the management of patients, in others targeted therapies failed to achieve clinically stable recurrence-free disease course or to substantially extend survival...
March 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418661/systematic-dissociation-pathway-searches-guided-by-principal-component-modes
#17
Zhiye Tang, Chia-En A Chang
We introduce a novel method, Pathway Search guided by Internal Motions (PSIM), that efficiently finds molecular dissociation pathways of a ligand-receptor system with guidance from principal component (PC) modes obtained from molecular dynamics (MD) simulations. Modeling ligand-receptor dissociation pathways can provide insights into molecular recognition and has practical applications, including understanding kinetic mechanisms and barriers to binding/unbinding as well as design of drugs with desired kinetic properties...
April 18, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28417889/monitoring-for-the-oral-and-maxillofacial-surgeon
#18
REVIEW
Robert C Bosack
Parenteral medications are titrated in the oral and maxillofacial surgery office to achieve moderate sedation, deep sedation, or general anesthesia while continuously maintaining spontaneous ventilation with an open airway. After initial drug administration, the provider assesses and interprets both the level of anesthesia and the presence/severity of adverse side effects, both of which guide further drug titration, cessation, reversal, or medical management. This assessment is called monitoring, which guides the conduct of anesthesia delivery and becomes the essence of this art...
May 2017: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/28417525/metformin-associated-lactic-acidosis-mala-moving-towards-a-new-paradigm
#19
REVIEW
Jean-Daniel Lalau, Farshad Kajbaf, Alessandro Protti, Mette Marie Christensen, Marc-Etienne De Broe, Nicolas Wiernsperger
Although metformin has been used for over 60 years, the balance between the drug's beneficial and adverse effects is still subject to debate. Following an analysis of how cases of so-called "metformin-associated lactic acidosis" (MALA) are reported in the literature, the present article reviews the pitfalls to be avoided when assessing the purported association between metformin and lactic acidosis. By starting from pathophysiological considerations, we propose a new paradigm for lactic acidosis in metformin-treated patients...
April 17, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28416953/response-evaluation-of-chemotherapy-for-lung-cancer
#20
REVIEW
Ki-Eun Hwang, Hak-Ryul Kim
Assessing response to therapy allows for prospective end point evaluation in clinical trials and serves as a guide to clinicians for making decisions. Recent prospective and randomized trials suggest the development of imaging techniques and introduction of new anti-cancer drugs. However, the revision of methods, or proposal of new methods to evaluate chemotherapeutic response, is not enough. This paper discusses the characteristics of the Response Evaluation Criteria In Solid Tumor (RECIST) version 1.1 suggested in 2009 and used widely by experts...
April 2017: Tuberculosis and Respiratory Diseases
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