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https://www.readbyqxmd.com/read/29782640/drug-gut-microbiota-interactions-implications-for-neuropharmacology
#1
REVIEW
Jacinta Walsh, Brendan T Griffin, Gerard Clarke, Niall P Hyland
The fate and activity of drugs are frequently dictated not only by the host per se but also by the microorganisms present in the gastrointestinal tract. The gut microbiome is known to, both directly and indirectly, affect drug metabolism. More evidence now hints at the impact that drugs can have on the function and composition of the gut microbiome. Both microbiota-mediated alterations in drug metabolism and drug-mediated alterations in the gut microbiome can have beneficial or detrimental effects on the host...
May 21, 2018: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29780579/managing-portal-hypertension-in-patients-with-liver-cirrhosis
#2
REVIEW
Tilman Sauerbruch, Robert Schierwagen, Jonel Trebicka
Portal hypertension is one cause and a part of a dynamic process triggered by chronic liver disease, mostly induced by alcohol or incorrect nutrition and less often by viral infections and autoimmune or genetic disease. Adequate staging - continuously modified by current knowledge - should guide the prevention and treatment of portal hypertension with defined endpoints. The main goals are interruption of etiology and prevention of complications followed, if necessary, by treatment of these. For the past few decades, shunts, mostly as intrahepatic stent bypass between portal and hepatic vein branches, have played an important role in the prevention of recurrent bleeding and ascites formation, although their impact on survival remains ambiguous...
2018: F1000Research
https://www.readbyqxmd.com/read/29780457/highly-efficient-base-editing-in-staphylococcus-aureus-using-an-engineered-crispr-rna-guided-cytidine-deaminase
#3
Tongnian Gu, Siqi Zhao, Yishuang Pi, Weizhong Chen, Chuanyuan Chen, Qian Liu, Min Li, Dali Han, Quanjiang Ji
Novel therapeutic means against Staphylococcus aureus infections are urgently needed due to the emergence of drug-resistant S. aureus . We report the development of a CRISPR RNA-guided cytidine deaminase (pnCasSA-BEC), enabling highly efficient gene inactivation and point mutations in S. aureus . We engineered a fusion of a Cas9 nickase (Cas9D10A) and a cytidine deaminase (APOBEC1) that can be guided to a target genomic locus for gene inactivation via generating a premature stop codon. The pnCasSA-BEC system nicks the non-edited strand of the genomic DNA, directly catalyzes the conversion of cytidine (C) to uridine (U), and relies on DNA replication to achieve C → T (G → A) conversion without using donor repair templates...
March 28, 2018: Chemical Science
https://www.readbyqxmd.com/read/29779179/clinical-outcomes-of-complete-revascularization-using-either-angiography-guided-or-fractional-flow-reserve-guided-drug-eluting-stent-implantation-in-non-culprit-vessels-in-st-elevation-myocardial-infarction-patients-insights-from-a-study-based-on-a-systematic
#4
REVIEW
Alexandre Hideo-Kajita, Hector M Garcia-Garcia, Kayode O Kuku, Solomon S Beyene, Viana Azizi, Yael F Meirovich, Gebremedhin D Melaku, Aaphtaab Dheendsa, Echo J Brathwaite, Sameer Desale, Mohammad Soud, Kazuhiro Dan, Yuichi Ozaki, Ron Waksman, Michael Lipinski
Current guidelines recommend that percutaneous coronary intervention (PCI) should be restricted to the culprit vessel in ST elevation myocardial infarction (STEMI) patients with multi-vessel disease (MVD) and without cardiogenic shock. However, newer data suggests that performing complete revascularization (CR) in MVD patients may lead to better outcomes compared to intervention in the culprit vessel only. The aim of this meta-analysis is to examine the available data to determine if CR (using either angio- or fractional flow reserve guidance-FFR) following primary PCI in STEMI patients without cardiogenic shock impacts clinical outcomes...
May 19, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29779158/diffusion-weighted-magnetic-resonance-enterography-for-prediction-of-response-to-tumor-necrosis-factor-inhibitors-in-stricturing-crohn-s-disease
#5
Marianne M Amitai, Eyal Klang, Asaf Levartovsky, Noa Rozendorn, Shelly Soffer, Gadeer Ali Taha, Bella Ungar, Tomer Greener, Shomron Ben-Horin, Rami Eliakim, Uri Kopylov
BACKGROUND AND AIMS: Distinguishing between fibrotic and inflammatory strictures in Crohn's disease (CD) is still challenging. The capacity of diffusion-weighted (DWI) magnetic resonance (MRE) to identify intestinal fibrosis was recently demonstrated; however, the therapeutic implications of this association have never been evaluated. The aim of the current study was to identify imaging features, including DWI, which can predict response to anti-inflammatory treatment in patients with stricturing CD...
May 19, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29778265/a-guide-to-the-economics-of-hepatitis-c-virus-cure-in-2017
#6
REVIEW
Benjamin P Linas, Shayla Nolen
This commentary reviews the core principals of cost-effectiveness and applies them to the rapidly evolving context of hepatitis C virus treatment in the United States. The article provides a foundation of evidence that hepatitis C virus treatment provides good economic value, even though it is expensive, and even when treating people who inject drugs who are at high risk for hepatitis C virus reinfection. The price of medications has decreased, but the high price continues to limit access to care. This wedge between cost effectiveness and affordability stands front and center as one of the leading obstacles to elimination...
June 2018: Infectious Disease Clinics of North America
https://www.readbyqxmd.com/read/29777957/dual-ph-reduction-responsive-hybrid-polymeric-micelles-for-targeted-chemo-photothermal-combination-therapy
#7
Linhua Zhang, Yu Qin, Zhiming Zhang, Fan Fan, Chenlu Huang, Li Lu, Hai Wang, Xu Jin, Hanxue Zhao, Deling Kong, Chun Wang, Hongfan Sun, Xigang Leng, Dunwan Zhu
The combination of chemotherapy and photothermal therapy in multifunctional nanovesicles has emerged as a promising strategy to improve cancer therapeutic efficacy. Herein, we designed new pH/reduction dual-responsive and folate decorated polymeric micelles (FA Co-PMs) as theranostic nanocarrier to co-encapsulate doxorubicin (DOX) and indocyanine green (ICG) for targeted NIR imaging and chemo-photothermal combination therapy. The Co-PMs exhibited nano-sized structure (∼100 nm) with good monodispersity, high encapsulation efficiency of both ICG and DOX, triggered DOX release in response to acid pH and reduction environment, and excellent temperature conversion with laser irradiation...
May 16, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29777729/pharmacogenetic-tests-to-guide-drug-treatment-in-depression-comparison-of-the-available-testing-kits-and-clinical-trials
#8
REVIEW
Chiara Fabbri, Joseph Zohar, Alessandro Serretti
The empirical approach to drug choice and dosing in depression often results into inadequate response and side effects. Pharmacogenetic (PGx) testing appears a promising way to implement personalized treatments. A systematic review was performed to identify available PGx tests, compare the genes they include with clinical guidelines and drug labels, and assess the quality of published clinical studies. ~40 commercial PGx tests are available and potential benefits were estimated for nine of them by clinical studies...
May 16, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29777519/combination-glucose-lowering-therapy-plans-in-t2dm-case-based-considerations
#9
REVIEW
Lawrence Blonde, Susana Dipp, Daniel Cadena
Type 2 diabetes mellitus (T2DM) is a complex disease, and while lifestyle interventions remain the cornerstone of therapy, most patients will also require pharmacotherapy. Current diabetes treatment guidelines and algorithms recommend an individualized approach to setting glycemic goals and selecting treatment. Although a single antihyperglycemic agent may be appropriate as the initial T2DM pharmacotherapy, the progressive nature of the disease due to declining pancreatic β-cell function will result in the vast majority of T2DM patients eventually requiring two or more antihyperglycemic agents...
May 18, 2018: Advances in Therapy
https://www.readbyqxmd.com/read/29776830/pharmacological-modulation-of-radiation-induced-oral-mucosal-complications
#10
S Bockel, A Vallard, A Lévy, S François, M Bourdis, C Le Gallic, D Riccobono, P Annede, M Drouet, Y Tao, P Blanchard, É Deutsch, N Magné, C Chargari
Radiation-induced mucositis is a common toxicity, especially in patients with head and neck cancers. Despite recent technological advances in radiation therapy, such as intensity-modulated radiotherapy, radiation-induced mucositis is still causing treatment disruptions, negatively affecting patients' long and short term quality of life, and impacting medical resources use with economic consequences. The objective of this article was to review the latest updates in the management of radiation-induced mucositis, with a focus on pharmaceutical strategies for the prevention or treatment of mucositis...
May 15, 2018: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/29775757/molecular-characterization-of-physis-tissue-by-rna-sequencing
#11
Christopher R Paradise, Catalina Galeano-Garces, Daniela Galeano-Garces, Amel Dudakovic, Todd A Milbrandt, Daniel B F Saris, Aaron J Krych, Marcel Karperien, Gabriel B Ferguson, Denis Evseenko, Scott M Riester, Andre J van Wijnen, A Noelle Larson
The physis is a well-established and anatomically distinct cartilaginous structure that is crucial for normal long-bone development and growth. Abnormalities in physis function are linked to growth plate disorders and other pediatric musculoskeletal diseases. Understanding the molecular pathways operative in the physis may permit development of regenerative therapies to complement surgically-based procedures that are the current standard of care for growth plate disorders. Here, we performed next generation RNA sequencing on mRNA isolated from human physis and other skeletal tissues (e...
May 15, 2018: Gene
https://www.readbyqxmd.com/read/29775668/current-approaches-to-the-discovery-of-novel-inhaled-medicines
#12
REVIEW
Peter Strong, Kazuhiro Ito, John Murray, Garth Rapeport
Inhaled administration is underutilised because the drug discovery process is viewed as challenging, risky, and expensive. However, unmet medical need continues to grow, and significant opportunities exist to discover novel inhaled medicines delivering the required lung concentrations while minimising systemic exposure. This profile could be achieved by a combination of properties, including lung retention and low oral bioavailability. Property-based rules exist for orally administered compounds, but there has been limited progress defining in silico predictors to guide the discovery of novel inhaled drugs...
May 15, 2018: Drug Discovery Today
https://www.readbyqxmd.com/read/29774074/placenta-specific-drug-delivery-by-trophoblast-targeted-nanoparticles-in-mice
#13
Baozhen Zhang, Lunbo Tan, Yan Yu, Baobei Wang, Zhilong Chen, Jinyu Han, Mengxia Li, Jie Chen, Tianxia Xiao, Balamurali K Ambati, Lintao Cai, Qing Yang, Nihar R Nayak, Jian Zhang, Xiujun Fan
Rationale: The availability of therapeutics to treat pregnancy complications is severely lacking, mainly due to the risk of harm to the fetus. In placental malaria, Plasmodium falciparum- infected erythrocytes (IEs) accumulate in the placenta by adhering to chondroitin sulfate A (CSA) on the surfaces of trophoblasts. Based on this principle, we have developed a method for targeted delivery of payloads to the placenta using a synthetic placental CSA-binding peptide (plCSA-BP) derived from VAR2CSA, a CSA-binding protein expressed on IEs...
2018: Theranostics
https://www.readbyqxmd.com/read/29774064/tumour-homing-chimeric-polypeptide-conjugated-polypyrrole-nanoparticles-for-imaging-guided-synergistic-photothermal-and-chemical-therapy-of-cancer
#14
Mengmeng Sun, Jianwen Guo, Hanjun Hao, Tong Tong, Kun Wang, Weiping Gao
Near-infrared (NIR)-absorbing conjugated polymer nanoparticles are interesting for imaging-guided combination therapy, especially for synergistic photothermal therapy and chemotherapy; however, most of them target tumours passively through the enhanced permeability and retention (EPR) effect, leading to low utilization efficiency. To address this problem, we report an active tumour-targeting strategy of tumour-homing chimeric polypeptide-conjugated NIR-absorbing conjugated-polymer nanoparticles as a new class of drug nanocarriers for imaging-guided combination therapy of cancer...
2018: Theranostics
https://www.readbyqxmd.com/read/29773435/epidemiology-of-antifungal-susceptibility-review-of-literature
#15
REVIEW
I Hadrich, A Ayadi
Fungal infections are a major cause of morbidity and mortality despite the latest developments of diagnostic tools and therapeutic options. Early initiation of the appropriate antifungal therapy has been demonstrated to have a direct impact on the patient's outcome. Antifungal susceptibility testing methods are available to detect antifungal resistance and to determine the best treatment for a specific fungus. American and European standards have been developed, as well as equivalent commercial systems, which are more appropriate for clinical laboratories...
May 14, 2018: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/29773272/juvenile-dermatomyositis-latest-advances
#16
REVIEW
Qiong Wu, Lucy R Wedderburn, Liza J McCann
Registries and biobanks for juvenile dermatomyositis (JDM) have generated statistical power to help understand pathogenesis and determine treatment and long-term outcomes in this rare and heterogeneous disease. Genotype, autoantibodies, muscle histology and early clinical features may predict prognosis and guide personalised treatment. While corticosteroids and disease-modifying anti-rheumatic drugs improve outcomes, there remain children who experience refractory disease. Ongoing research into the aberrant immune response and novel biological targets is necessary...
August 2017: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/29773230/medications-received-by-patients-with-juvenile-dermatomyositis
#17
Takayuki Kishi, Nastaran Bayat, Michael M Ward, Adam M Huber, Lan Wu, Gulnara Mamyrova, Ira N Targoff, William J Warren-Hicks, Frederick W Miller, Lisa G Rider
OBJECTIVE: Few controlled studies are available to guide treatment decisions in juvenile dermatomyositis (JDM). This study evaluated therapies received, changes of treatment over time, and factors associated with medication choices in JDM. METHODS: We performed a retrospective analysis of the number and type of therapies and duration of treatment for 320 patients with JDM enrolled in a North American registry. Kaplan-Meier and logistic regression analysis were used to assess the association of demographic and clinical features and autoantibodies with medication usage...
March 28, 2018: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/29773056/nanocrystals-technology-for-pharmaceutical-science
#18
Zhongyao Cheng, Yumei Lian, Zul Kamal, Xin Ma, Jianjun Chen, Xinbo Zhou, Jing Su, Mingfeng Qiu
BACKGROUND: Nanocrystals technology is a promising method for improving the dissolution rate and enhancing the bioavailability of poorly soluble drugs. In recent years, it has been developing rapidly and applied to drug research and engineering. Nanocrystal drugs can be formulated into various dosage forms. OBJECTIVE: This review mainly focused on the nanocrystals technology and its application in pharmaceutical science. Firstly, different preparation methods of nanocrystal technology and the characterization of nanocrystal drugs are briefly described...
May 17, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29772722/ethnobotany-phytochemistry-and-pharmacological-effects-of-plants-in-genus-cynanchum-linn-asclepiadaceae
#19
REVIEW
Lu Han, Xiuping Zhou, Mengmeng Yang, Li Zhou, Xinxin Deng, Shijie Wei, Wenping Wang, Zhizhong Wang, Xue Qiao, Changcai Bai
Genus Cynanchum L. belongs to the family Asclepiadaceae, which comprise more than 200 species distributed worldwide. In Chinese medical practice, numerous drugs (such as tablets and powders) containing different parts of plants of this genus are used to treat snake bites, bruises, osteoblasts, rheumatoid arthritis and tumors. A search for original articles published on the cynanchum genus was performed by using several resources, including Flora of China Official Website and various scientific databases, such as PubMed, SciFinder, the Web of Science, Science Direct, and China Knowledge Resource Integrated (CNKI)...
May 16, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29772690/peritoneal-carcinomatosis-targeting-with-tumor-homing-peptides
#20
REVIEW
Lorena Simón-Gracia, Hedi Hunt, Tambet Teesalu
Over recent decades multiple therapeutic approaches have been explored for improved management of peritoneally disseminated malignancies-a grim condition known as peritoneal carcinomatosis (PC). Intraperitoneal (IP) administration can be used to achieve elevated local concentration and extended half-life of the drugs in the peritoneal cavity to improve their anticancer efficacy. However, IP-administered chemotherapeutics have a short residence time in the IP space, and are not tumor selective. An increasing body of work suggests that functionalization of drugs and nanoparticles with targeting peptides increases their peritoneal retention and provides a robust and specific tumor binding and penetration that translates into improved therapeutic response...
May 16, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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