keyword
MENU ▼
Read by QxMD icon Read
search

Drug resistant

keyword
https://www.readbyqxmd.com/read/27915478/targeting-the-phosphatidylinositol-3-kinase-pathway-in-gastric-cancer-can-omics-improve-outcomes
#1
REVIEW
Phu Tran, Cham Nguyen, Samuel J Klempner
Phosphatidylinositol-3-kinase (PI3K) pathway signaling is an established oncogenic signal transduction pathway implicated in multiple malignancies. Therapeutic targeting of PI3K pathway components has improved outcomes in chronic lymphocytic leukemia, kidney cancer, breast cancer, and neuroendocrine tumors. Gastric cancers harbor some of the highest rates of oncogenic alterations in PI3K but attempts to translate this genomic observation have met with limited clinical success and novel approaches are needed...
November 2016: International Neurourology Journal
https://www.readbyqxmd.com/read/27915307/diversity-and-antifungal-drug-susceptibility-of-cryptococcus-isolates-in-thailand
#2
Navaporn Worasilchai, Marut Tangwattanachuleeporn, Kornvalee Meesilpavikkai, Claudia Folba, Mourine Kangogo, Uwe Groß, Michael Weig, Oliver Bader, Ariya Chindamporn
Yeasts of the Cryptococcus species complex are the causative agent of cryptococcosis, especially in human immunodeficiency virus (HIV) positive individuals. Cerebral or disseminated cryptococcosis has a very high mortality rate worldwide, including in Thailand. Additionally, an increasing rate of antifungal drug resistant cryptococcal isolates has been reported in several neighboring countries, complicating therapeutic approaches. To understand the situation of this infection in Thailand, we retrospectively investigated the molecular epidemiology and antifungal drug resistance in a collection of 74 clinical, 52 environmental and two veterinary isolates using the URA5-RFLP for typing and the EUCAST guideline for susceptibility testing...
December 3, 2016: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/27915303/candida-species-isolated-from-different-body-sites-and-their-antifungal-susceptibility-pattern-cross-analysis-of-candida-albicans-and-candida-glabrata-biofilms
#3
Valentina Cataldi, Emanuela Di Campli, Paolo Fazii, Tonino Traini, Luigina Cellini, Mara Di Giulio
Candida species are regular commensal in humans, but-especially in immunocompromised patients-they represent opportunistic pathogens giving rise to systemic infection. The aim of the present work was to isolate and characterize for their antifungal profile Candida species from different body sites and to analyze the biofilms produced by C. albicans and C. glabrata isolates. Eighty-one strains of Candida species from 77 patients were identified. Epidemiological study showed that the most isolated species were C...
December 2, 2016: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/27915300/challenges-in-the-management-of-chronic-pulmonary-aspergillosis
#4
Chris Kosmidis, Eavan G Muldoon
The management of chronic pulmonary aspergillosis (CPA) presents multiple challenges. We present three cases that illustrate some of the most challenging aspects of caring for patients with CPA: specifically, antifungal drug resistance, drug interactions, coinfection with nontuberculous mycobacteria, and large-volume hemoptysis.
December 2, 2016: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/27915042/non-coding-rnas-and-berberine-a-new-mechanism-of-its-anti-diabetic-activities
#5
REVIEW
Wenguang Chang
Type 2 Diabetes (T2D) is a metabolic disease with high mortality and morbidity. Non-coding RNAs, including small and long non-coding RNAs, are a novel class of functional RNA molecules that regulate multiple biological functions through diverse mechanisms. Studies in the last decade have demonstrated that non-coding RNAs may represent compelling therapeutic targets and play important roles in regulating the course of insulin resistance and T2D. Berberine, a plant-based alkaloid, has shown promise as an anti-hyperglycaemic, anti-hyperlipidaemic agent against T2D...
November 30, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27915000/drug-resistant-pathogens-and-travel-no-road-map-but-a-new-initiative-from-travel-medicine-and-infectious-disease
#6
EDITORIAL
Patricia Schlagenhauf, Philippe Gautret, Alfonso J Rodrguez-Morales, Michael E Jones, Stephen Toovey, Eskild Petersen, Lin H Chen
No abstract text is available yet for this article.
November 30, 2016: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/27914985/combination-therapy-with-doxorubicin-loaded-galactosylated-poly-ethyleneglycol-lithocholic-acid-to-suppress-the-tumor-growth-in-an-orthotopic-mouse-model-of-liver-cancer
#7
Bijay Singh, Yoonjeong Jang, Sushila Maharjan, Hyeon-Jeong Kim, Ah Young Lee, Sanghwa Kim, Nomundelger Gankhuyag, Myeon-Sik Yang, Yun-Jaie Choi, Myung-Haing Cho, Chong-Su Cho
Despite advances in technology, neither conventional anti-cancer drugs nor current nanoparticle (NP) drugs have gained substantial success in cancer treatment. While conventional chemotherapy drugs have several limitations such as low potency, poor in vivo stability and limited bioavailability, non-specific targeting of NP drugs diminishes their potency at actual target sites. In addition, the development of drug resistance to anti-cancer drugs is another challenging problem. To overcome these limitations, we aimed to develop a polymer-drug conjugate, which functions as an active NP drug and drug carrier both, to deliver a chemotherapeutic drug for combination therapy...
November 24, 2016: Biomaterials
https://www.readbyqxmd.com/read/27914962/efflux-mediated-colistin-resistance-in-diverse-clones-of-klebsiella-pneumoniae-from-aquatic-environment
#8
Santosh Kumar Singh, Mitali Mishra, Minu Sahoo, Shashank Patole, Harapriya Mohapatra
The peptide drug colistin is commonly used to treat carbapenem resistant gram negative bacterial infections. In the present study, we report efflux mediated colistin resistance in multidrug resistant Klebsiella pneumoniae isolates belonging to ST200 and ST1296, isolated from a fresh water environment. The isolates exhibited intermediate resistance to human serum, possessed Type 1 fimbriae and harbored blaSHV-34 and blaTEM-1 genes. Our results highlight the evolving nature of these clones in the country. These observations emphasize the need for judicious usage of antibiotics to prevent the imminent danger of losing out on currently available therapeutic options...
November 30, 2016: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27914949/anion-inhibition-profiles-of-the-%C3%AE-carbonic-anhydrase-from-the-pathogenic-bacterium-burkholderia-pseudomallei-responsible-of-melioidosis-and-highly-drug-resistant-to-common-antibiotics
#9
Sonia Del Prete, Daniela Vullo, Pietro Di Fonzo, Sameh M Osman, Zeid AlOthman, Claudiu T Supuran, Clemente Capasso
Burkholderia pseudomallei is a Gram-negative saprophytic bacterium responsible of melioidosis, an endemic disease of tropical and sub-tropical regions of the world. A recombinant γ-CA (BpsγCA) identified in the genome of this bacterium was cloned and purified. Its catalytic activity and anion inhibition profiles were investigated. The enzyme was an efficient catalyst for the CO2 hydration showing a kcat of 5.3×10(5)s(-1) and kcat/Km of 2.5×10(7)M(-1)×s(-1). The best BpsγCA inhibitors were sulfamide, sulfamic acid, phenylboronic acid and phenylarsonic acid, which showed KI in the range of 49-83μM (these inhibitors showed millimolar inhibition constant against hCA II), followed by diethyldithiocarbamate, selenate, tellurate, perrhenate, selenocyanate, trithiocarbonate, tetraborato, pyrophosphate, stannate, carbonate, bicarbonate, azide, cyanide, thiocyanate and cyanate with KIs in the range of 0...
November 14, 2016: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/27914856/occult-hiv-1-drug-resistance-to-thymidine-analogues-following-failure-of-first-line-tenofovir-combined-with-a-cytosine-analogue-and-nevirapine-or-efavirenz-in-sub-saharan-africa-a-retrospective-multi-centre-cohort-study
#10
John Gregson, Pontiano Kaleebu, Vincent C Marconi, Cloete van Vuuren, Nicaise Ndembi, Raph L Hamers, Phyllis Kanki, Christopher J Hoffmann, Shahin Lockman, Deenan Pillay, Tulio de Oliveira, Nathan Clumeck, Gillian Hunt, Bernhard Kerschberger, Robert W Shafer, Chunfu Yang, Elliot Raizes, Rami Kantor, Ravindra K Gupta
BACKGROUND: HIV-1 drug resistance to older thymidine analogue nucleoside reverse transcriptase inhibitor drugs has been identified in sub-Saharan Africa in patients with virological failure of first-line combination antiretroviral therapy (ART) containing the modern nucleoside reverse transcriptase inhibitor tenofovir. We aimed to investigate the prevalence and correlates of thymidine analogue mutations (TAM) in patients with virological failure of first-line tenofovir-containing ART...
November 30, 2016: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/27914853/monitoring-the-fitness-of-antiviral-resistant-influenza-strains-during-an-epidemic-a-mathematical-modelling-study
#11
Kathy Leung, Marc Lipsitch, Kwok Yung Yuen, Joseph T Wu
BACKGROUND: Antivirals (eg, oseltamivir) are important for mitigating influenza epidemics. In 2007, an oseltamivir-resistant influenza seasonal A H1N1 strain emerged and spread to global fixation within 1 year. This event showed that antiviral-resistant (AVR) strains can be intrinsically more transmissible than their contemporaneous antiviral-sensitive (AVS) counterpart. Surveillance of AVR fitness is therefore essential. Our objective was to develop a simple method for estimating AVR fitness from surveillance data...
November 30, 2016: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/27914754/antiparasitic-and-disease-modifying-activity-of-nyctanthes-arbor-tristis-linn-in-malaria-an-exploratory-clinical-study
#12
Chhaya S Godse, Prakash S Tathed, Sameer S Talwalkar, Rama A Vaidya, Ashok J Amonkar, Akhil B Vaidya, Ashok D B Vaidya
BACKGROUND: An unceasing threat of drug resistance continuously poses demand for new antimalarial drugs. A scientific assessment of traditionally used antimalarial plants through reverse pharmacology is crucial for a fast track drug discovery. An Ayurvedic plant Nyctanthesarbor-tristis Linn. - (Parijat) had shown antimalarial activity, with a parasite clearance in 76.6% of 120 patients, in an earlier clinical study. OBJECTIVE: To further explore antimalarial potential of the plant through additional objective markers...
November 30, 2016: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/27914649/nosocomial-outbreak-of-extensively-drug-resistant-pseudomonas-aeruginosa-associated-with-aromatherapy
#13
Astrid Mayr, Guido Hinterberger, Ingo H Lorenz, Peter Kreidl, Wolfgang Mutschlechner, Cornelia Lass-Flörl
An increase of extensively drug-resistant Pseudomonas aeruginosa (XDR-PA) in various clinical specimens among intensive care unit patients (n = 7) initiated an outbreak investigation consisting of patient data analyses, control of adherence to infection control guidelines, microbiologic surveys, and molecular-based studies. XDR-PA was detected in a jointly used aroma-oil nursing bottle for aromatherapy. We implemented the restriction of oil sharing among patients. Hence, the outbreak was controlled successfully...
November 30, 2016: American Journal of Infection Control
https://www.readbyqxmd.com/read/27914534/novel-revelation-of-warfarin-resistant-mechanism-in-roof-rats-rattus-rattus-using-pharmacokinetic-pharmacodynamic-analysis
#14
Kazuki Takeda, Yoshinori Ikenaka, Tsutomu Tanikawa, Kazuyuki D Tanaka, Shouta M M Nakayama, Hazuki Mizukawa, Mayumi Ishizuka
Roof rats (Rattus rattus) live mainly in human habitats. Heavy use of rodenticides, such as warfarin, has led to the development of drug resistance, making pest control difficult. There have been many reports regarding mutations of vitamin K epoxide reductase (VKOR), the target enzyme of warfarin, in resistant rats. However, it has been suggested there are other mechanisms of warfarin resistance. To confirm these possibilities, closed colonies of warfarin-susceptible roof rats (S) and resistant rats from Tokyo (R) were established, and the pharmacokinetics/pharmacodynamics of warfarin in rats from both colonies was investigated...
November 2016: Pesticide Biochemistry and Physiology
https://www.readbyqxmd.com/read/27914363/new-insights-into-the-sar-and-drug-combination-synergy-of-2-quinolin-4-yloxy-acetamides-against-mycobacterium-tuberculosis
#15
Bruno Couto Giacobbo, Kenia Pissinate, Valnês Rodrigues-Junior, Anne Drumond Villela, Estêvão Silveira Grams, Bruno Lopes Abbadi, Fernanda Teixeira Subtil, Nathalia Sperotto, Rogério Valim Trindade, Davi Fernando Back, Maria Martha Campos, Luiz Augusto Basso, Pablo Machado, Diógenes Santiago Santos
2-(Quinolin-4-yloxy)acetamides have been described as potent and selective in vitro inhibitors of Mycobacterium tuberculosis (Mtb) growth. Herein, a new series of optimized compounds were found to demonstrate highly potent antitubercular activity, with minimum inhibitory concentration (MIC) values against drug-susceptible and drug-resistant Mycobacterium tuberculosis strains in the submicromolar range. Furthermore, the most active compounds had no apparent toxicity to mammalian cells, and they showed intracellular activities similar to those of isoniazid and rifampin in a macrophage model of Mtb infection...
November 23, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27914352/searching-for-novel-modes-of-toxic-actions-of-oil-spill-using-e-%C3%A2-coli-live-cell-array-reporter-system-a-hebei-spirit-oil-spill-study
#16
Dawoon Jung, Miao Guan, Sangwoo Lee, Cheolmin Kim, Hyesoo Shin, Seongjin Hong, Un Hyuk Yim, Won Joon Shim, John P Giesy, Jong Seong Khim, Xiaowei Zhang, Kyungho Choi
Oil is a complex mixture of numerous compounds. Therefore, oil spills near shore can cause various adverse effects on coastal ecosystems. However, most toxicological assessments conducted on oil spill sites have focused on limited modes of toxic actions. In the present study, we utilized the Escherichia coli (E. coli) live cell array system (LCA) to identify novel modes of toxicities of the oil spill-affected sediments. For this purpose, sediment samples were collected from an area heavily polluted by Hebei Spirit oil spill (HSOS) incident of 2007...
November 30, 2016: Chemosphere
https://www.readbyqxmd.com/read/27914336/thermoresponsive-supramolecular-micellar-drug-delivery-system-based-on-star-linear-pseudo-block-polymer-consisting-of-%C3%AE-cyclodextrin-poly-n-isopropylacrylamide-and-adamantyl-poly-ethylene-glycol
#17
Xia Song, Jing-Ling Zhu, Yuting Wen, Feng Zhao, Zhong-Xing Zhang, Jun Li
Chemotherapy is facing several limitations such as low water solubility of anticancer drugs and multidrug resistance (MDR) in cancer cells. To overcome these limitations, a thermoresponsive micellar drug delivery system formed by a non-covalently connected supramolecular block polymer was developed. The system is based on the host-guest interaction between a well-defined β-cyclodextrin (β-CD) based poly(N-isopropylacrylamide) star host polymer and an adamantyl-containing poly(ethylene glycol) (Ad-PEG) guest polymer...
November 16, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27914264/pattern-based-sensing-of-triple-negative-breast-cancer-cells-with-dual-ligand-cofunctionalized-gold-nanoclusters
#18
Yu Tao, Mingqiang Li, Debra T Auguste
Early detection of breast cancer is a critical component in patient prognosis and establishing effective therapy regimens. Here, we developed an easily accessible yet potentially powerful sensor to detect cancer cell targets by utilizing seven dual-ligand cofunctionalized gold nanoclusters (AuNCs) as both effective cell recognition elements and signal transducers. On the basis of this AuNC multichannel sensor, we have successfully distinguished healthy, cancerous and metastatic human breast cells with excellent reproducibility and high sensitivity...
November 25, 2016: Biomaterials
https://www.readbyqxmd.com/read/27914127/impact-of-initial-vancomycin-trough-concentration-on-clinical-and-microbiological-outcomes-of-methicillin-resistant-staphylococcus-aureus-bacteremia-in-children
#19
Ree Nar Yoo, Seo Hee Kim, Jina Lee
It is important to use vancomycin in a proper manner to ensure optimal drug exposure. Despite extensive use of vancomycin in children, studies on its optimal trough concentration (Ctrough) in the pediatric population remained rare. This retrospective study included children < 18 years old with culture-confirmed methicillin-resistant Staphylococcus aureus (MRSA) bacteremia who were hospitalized in our institute from January 2010 to April 2014. Clinical characteristics, initial vancomycin dose, Ctrough and clinical/microbiological outcomes were retrospectively collected from medical records...
January 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27914088/murine-mycobacterium-marinum-infection-as-a-model-for-tuberculosis
#20
Julia Lienard, Fredric Carlsson
Mycobacteria are a major human health problem globally. Regarding tuberculosis the situation is worsened by the poor efficacy of current vaccine regimens and by emergence of drug-resistant strains (Manjelievskaia J et al, Trans R Soc Trop Med Hyg 110: 110, 2016; Pereira et al., Lancet Infect Dis 12:300-306, 2012; http://www.who.int/tb/publications/global_report/en/) undermining both disease-prevention and available treatments. Thus, increased basic understanding of mycobacterial-and particularly Mycobacterium tuberculosis-virulence strategies and pathogenesis is of great importance...
2017: Methods in Molecular Biology
keyword
keyword
30745
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"