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https://www.readbyqxmd.com/read/29228451/rg108-induces-the-apoptosis-of-endometrial-cancer-ishikawa-cell-lines-by-inhibiting-the-expression-of-dnmt3b-and-demethylation-of-hmlh1
#1
L Yang, J Hou, X-H Cui, L-N Suo, Y-W Lv
OBJECTIVE: The effects of DNA methyltransferase (DNMT) inhibitor RG108 on the proliferation and apoptosis of endometrial cancer was investigated, and whether its mechanism was related to the inhibition of DNMT3B, thereby affecting the human mutL homolog 1 (hMLH1) methylation status and its expression, was further studied. MATERIALS AND METHODS: Culture of human endometrial cancer Ishikawa cell lines: cells grew adhering to the wall in Roswell Park Memorial Institute-1640 (RPMI-1640) medium (supplemented with 10% fetal bovine serum (FBS) and 2 mM L-glutamic acid)...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29228449/igfbp2-induces-spry1-expression-via-nf-%C3%AE%C2%BAb-signaling-pathway-in-glioblastoma-multiforme-gbm
#2
Z-S Yuan, Y Cao, Z-Y Li
OBJECTIVE: Gliomas are accompanied with high mortality owning to their invasive peculiarity and vulnerability to drug resistance. miR-21 is a vital oncogenic miRNA that regulates drug resistance of tumor cells. This study aims to elucidate the function of miR-21 in human glioma cells resistant to carmustine (BCNU) and to demonstrate the underlying molecular mechanism. MATERIALS AND METHODS: BCNU-sensitive cells (SWOZ2 cells) were transfected with miR-21 agomir and negative control, and BCNU-resistance cells (SWOZ2-BCNU cells) were transfected with miR-21 antagomir and negative control...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29228368/the-oncolytic-virus-mg1-targets-and-eliminates-latently-hiv-1-infected-cells-implications-for-an-hiv-cure
#3
Nischal Ranganath, Teslin S Sandstrom, Stephanie C Burke Schinkel, Sandra C Côté, Jonathan B Angel
Latently HIV-infected cells evade immune- and drug-mediated clearance. These cells harbour intracellular signalling defects including impairment of the antiviral, type I IFN (IFN-I) response. Such defects have also been observed in several cancers, and have been exploited for the development of therapeutic oncolytic viruses, including the recombinant Maraba virus (MG1). We therefore hypothesized that MG1 would infect and eliminate latently HIV-1-infected cells, while sparing healthy uninfected cells. Preferential infection and elimination by MG1 was first demonstrated in latently HIV-1-infected cell lines...
December 8, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29228345/mechanisms-and-mediators-of-hypertension-induced-by-erythropoietin-and-related-molecules
#4
Rajiv Agarwal
Hypertension is a common but frequently overlooked adverse effect of erythropoietin (EPO) therapy. Underreporting of hypertension with EPO is likely due to either more aggressively managing hypertension through the prescription of antihypertensive drugs or closer attention to dry weight. The purpose and focus of this review is to critically evaluate the mechanisms of EPO-induced hypertension. Preclinical data are considered first, followed by clinical data where available. Mediated by a variety of molecules, there is an imbalance in the vascular tone favoring net vasoconstriction that mediates EPO-induced hypertension...
December 8, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29228105/metformin-attenuates-susceptibility-to-inflammation-induced-preterm-birth-in-mice-with-higher-endocannabinoid-levels
#5
Xiaofei Sun, Alexandra Tavenier, Wenbo Deng, Emma Leishman, Heather B Bradshaw, Sudhansu K Dey
Premature decidual senescence is a contributing factor to preterm birth. Fatty acid amide hydrolase mutant females (Faah-/-) with higher endocannabinoid levels are also more susceptible to preterm birth upon lipopolysaccharide (LPS) challenge due to enhanced decidual senescence; this is associated with MAPK p38 activation. Previous studies have shown that mammalian target of rapamycin complex 1 (mTORC1) contributes to decidual senescence and promotes the incidence of preterm birth. In the present study, we sought to attenuate premature decidual aging in Faah-/- females by targeting mTORC1 and p38 signaling pathways...
December 5, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29227931/synthesis-and-antibacterial-evaluation-of-novel-cationic-chalcone-derivatives-possessing-broad-spectrum-antibacterial-activity
#6
Wen-Chao Chu, Peng-Yan Bai, Zhao-Qing Yang, De-Yun Cui, Yong-Gang Hua, Yi Yang, Qian-Qian Yang, En Zhang, Shangshang Qin
There is an urgent need to identify new antibiotics with novel mechanisms that combat antibiotic resistant bacteria. Herein, a series of chalcone derivatives that mimic the essential properties of cationic antimicrobial peptides were designed and synthesized. Antibacterial activities against drug-sensitive bacteria, including Staphylococcus aureus, Enterococcus faecalis, Escherichia coli and Salmonella enterica, as well as clinical multiple drug resistant isolates of methicillin-resistant S. aureus (MRSA), KPC-2-producing and NDM-1-producing Carbapenem-resistant Enterobacteriaceae were evaluated...
December 5, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29227894/substance-induced-psychotic-symptoms-in-borderline-personality-disorder-among-substance-use-disorder-samples-in-spain
#7
Carmen Barral, Laia Rodríguez-Cintas, Lara Grau-López, Constanza Daigre, Elena Ros-Cucurull, Natalia Calvo, Marc Ferrer, Carlos Roncero
Substance-induced psychosis (SIP) is frequent in substance use disorder patients. However, little is known about the presence of SIP in Borderline Personality Disorder (BPD) and what the risk factors for the development of SIP in this population would be. A sample of 91 BPD drug-dependent patients attending an outpatient substance use disorder unit was evaluated. Comorbidity with Axis I and II was assessed using SCID-I and SCID-II. Psychoactive drug related variables were registered as well as the presence of the ninth criterion of DSM-IV-TR as a code of psychotic symptoms...
December 6, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29227797/anticonvulsant-effects-of-acetaminophen-in-mice-comparison-with-the-effects-of-nonsteroidal-anti-inflammatory-drugs
#8
Katsuya Suemaru, Misato Yoshikawa, Akihiro Tanaka, Hiroaki Araki, Hiroaki Aso, Masahiko Watanabe
OBJECTIVE: The appropriate use of analgesic drugs based on their degree of analgesia and adverse effects is important for pain management. Although it has been reported that AM404, a metabolite of acetaminophen, has anticonvulsant effects in several animal seizure models, little is known about the relation between acetaminophen and seizures. We therefore investigated the effects of acetaminophen on seizure susceptibility in several mouse seizure and epilepsy models and compared the effects with those of nonsteroidal anti-inflammatory drugs (NSAIDs)...
December 5, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/29227795/divergent-effects-of-levetiracetam-and-tiagabine-against-spontaneous-seizures-in-adult-rats-following-neonatal-hypoxia
#9
Raymond Dunn, Bridget N Queenan, Daniel T S Pak, Patrick A Forcelli
Animal models are valuable tools for screening novel therapies for patients who suffer from epilepsy. However, a wide array of models are necessary to cover the diversity of human epilepsies. In humans, neonatal hypoxia (or hypoxia-ischemia) is one of the most common causes of epilepsy early in life. Hypoxia-induced seizures (HS) during the neonatal period can also lead to spontaneous seizures in adulthood. This phenomenon, i.e., early-life hypoxia leading to adult epilepsy - is also seen in experimental models, including rats...
December 5, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/29227728/use-of-low-level-laser-therapy-in-treatment-of-the-androgenic-alopecia-the-first-systematic-review
#10
Ibrahim Najem, Hongxiang Chen
Alopecia is a common disease affecting more than half of the world total number of people. Alopecia exists in different types, but one of the most common of these types is the Androgenic Alopecia which has affected approximately 51% of the total number of males ranging between the age bracket of 40 years and 75 years. This type of alopecia is more common in females who are above the age of 65 years and above. Despite this widespread effect, much has not been done regarding identifying the possible drugs for treating this disease...
December 11, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/29227694/pulsed-electric-field-assisted-sensitization-of-multidrug-resistant-candida-albicans-to-antifungal-drugs
#11
Vitalij Novickij, Jurgita Švedienė, Algimantas Paškevičius, Svetlana Markovskaja, Irutė Girkontaitė, Auksė Zinkevičienė, Eglė Lastauskienė, Jurij Novickij
AIM: Determine the influence of pH on the inactivation efficiency of C. albicans in pulsed electric fields (PEF) and evaluate the possibilities for sensitization of a drug-resistant strain to antifungal drugs. MATERIALS & METHODS: The effects of PEF (2.5-25 kVcm-1) with fluconazole, terbinafine and naftifine were analyzed at a pH range of 3.0-9.0. Membrane permeabilization was determined by flow cytometry and propidium iodide. RESULTS: PEF induced higher inactivation of C...
December 11, 2017: Future Microbiology
https://www.readbyqxmd.com/read/29227654/synergistic-chemopreventive-and-therapeutic-effects-of-co-drug-ua-met-implication-in-tumor-metastasis
#12
Guirong Zheng, Zhichun Shen, Aixiao Xu, Kai Jiang, Pengyu Wu, Xiang Yang, Xian Chen, Jingwei Shao
The anticancer properties of ursolic acid (UA) and metformin (Met) have been well demonstrated. However, whether these compounds can act synergistically to prevent and treat cancer is not known. We present in this study, the synergism between UA and Met, and that of a new codrug made of UA and Met (UA-Met) against several cancer cell lines. The combination of high concentration of UA (25, 50, 75, 100 μM) and Met (5, 10, 20, 40 mM) resulted in synergetic cytotoxicity on MDA-MB-231 and MCF-7 cells (CI < 0...
December 11, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29227575/effect-of-a-single-dose-of-the-dpp-4-inhibitor-sitagliptin-on-%C3%AE-cell-function-and-incretin-hormone-secretion-after-meal-ingestion-in-healthy-volunteers-and-drug-na%C3%A3-ve-well-controlled-type-2-diabetes-subjects
#13
Wathik Alsalim, Olga Göransson, Richard D Carr, Roberto Bizzotto, Andrea Tura, Giovanni Pacini, Andrea Mari, Bo Ahrén
To explore the effects of a single dose of the DPP-4 inhibitor sitagliptin on glucose-standardized insulin secretion and β-cell glucose sensitivity after meal ingestion, twelve healthy- and twelve drug naïve well-controlled type 2 diabetes subjects (T2D; mean HbA1c 43 mmol/mol, 6.2%) received sitagliptin (100mg) or placebo before a meal (525 kcal). β-cell function was measured as the insulin secretory rate at a standardized glucose concentration and the β-cell glucose sensitivity (the slope between glucose and insulin secretory rate)...
December 11, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/29227512/efficacy-and-safety-comparison-between-suberoylanilide-hydroxamic-acid-and-mitomycin-c-in-reducing-the-risk-of-corneal-haze-after-prk-treatment-in-vivo
#14
Govindaraj Anumanthan, Ajay Sharma, Michael Waggoner, Chuck W Hamm, Suneel Gupta, Nathan P Hesemann, Rajiv R Mohan
PURPOSE: This study compared the efficacy and safety of suberoylanilide hydroxamic acid (SAHA) and mitomycin C (MMC) up to 4 months in the prevention of corneal haze induced by photorefractive keratectomy (PRK) in rabbits in vivo. METHODS: Corneal haze in rabbits was produced with -9.00 diopter PRK. A single application of SAHA (25 μM) or MMC (0.02%) was applied topically immediately after PRK. Effects of the two drugs were analyzed by slit-lamp microscope, specular microscope, TUNEL assay, and immunofluorescence...
December 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29227500/enhanced-topical-delivery-of-dexamethasone-by-%C3%AE-cyclodextrin-decorated-thermoresponsive-nanogels
#15
M Giulbudagian, S Hönzke, J Bergueiro, D Işık, F Schumacher, S Saeidpour, S B Lohan, M C Meinke, C Teutloff, M Schäfer-Korting, G Yealland, B Kleuser, S Hedtrich, M Calderón
Highly hydrophilic, responsive nanogels are attractive as potential systems for the topical delivery of bioactives encapsulated in their three-dimensional polymeric scaffold. Yet, these drug carrier systems suffer from drawbacks for efficient delivery of hydrophobic drugs. Addressing this, β-cyclodextrin (βCD) could be successfully introduced into the drug carrier systems by exploiting its unique affinity toward dexamethasone (DXM) as well as its role as topical penetration enhancer. The properties of βCD could be combined with those of thermoresponsive nanogels (tNGs) based on dendritic polyglycerol (dPG) as a crosslinker and linear thermoresponsive polyglycerol (tPG) inducing responsiveness to temperature changes...
December 11, 2017: Nanoscale
https://www.readbyqxmd.com/read/29227282/hypoxia-induced-upregulation-of-bmx-kinase-mediates-therapeutic-resistance-in-acute-myeloid-leukemia
#16
Jolieke G van Oosterwijk, Daelynn R Buelow, Christina D Drenberg, Aksana Vasilyeva, Lie Li, Lei Shi, Yong-Dong Wang, David Finkelstein, Sheila A Shurtleff, Laura J Janke, Stanley Pounds, Jeffrey E Rubnitz, Hiroto Inaba, Navjotsingh Pabla, Sharyn D Baker
Oncogenic addiction to the Fms-like tyrosine kinase 3 (FLT3) is a hallmark of acute myeloid leukemia (AML) that harbors the FLT3-internal tandem duplication (FLT3-ITD) mutation. While FLT3 inhibitors like sorafenib show initial therapeutic efficacy, resistance rapidly develops through mechanisms that are incompletely understood. Here, we used RNA-Seq-based analysis of patient leukemic cells and found that upregulation of the Tec family kinase BMX occurs during sorafenib resistance. This upregulation was recapitulated in an in vivo murine FLT3-ITD-positive (FLT3-ITD+) model of sorafenib resistance...
December 11, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29226922/a-polymyxin-b-silver-nanoparticle-colloidal-system-and-the-application-of-lipopolysaccharide-analysis
#17
Tao Liu, Liqian Gao, Jing Zhao, Ya Cao, Yuguo Tang, Peng Miao
Polymyxin B (PMB) is a small cyclic polycationic lipopeptide, which can be used as an antibiotic drug against Gram-negative bacteria. In this work, the interaction between citrate capped silver nanoparticles (AgNPs) and PMB is studied. Experimental results show that the association constant is extremely high and the binding event leads to a significant variation in the localized surface plasmon resonance (LSPR) of AgNPs. Moreover, the PMB-AgNP colloidal system can be further exploited as a sensitive analytical platform...
December 11, 2017: Analyst
https://www.readbyqxmd.com/read/29226741/side-effects-associated-with-current-and-prospective-antimigraine-pharmacotherapies
#18
Abimael González-Hernández, Bruno A Marichal-Cancino, Antoinette MaassenVanDenBrink, Carlos M Villalón
Migraine is a neurovascular disorder. Current acute specific antimigraine pharmacotherapies target trigeminovascular 5-HT1B/1D, 5-HT1F and CGRP receptors but, unfortunately, they induce some cardiovascular and central side effects that lead to poor treatment adherence/compliance. Therefore, new antimigraine drugs are being explored. Areas covered. This review considers the adverse (or potential) side effects produced by current and prospective antimigraine drugs, including medication overuse headache (MOH) produced by ergots and triptans, the side effects observed in clinical trials for the new gepants and CGRP antibodies, and a section discussing the potential effects resulting from disruption of the cardiovascular CGRPergic neurotransmission...
December 9, 2017: Expert Opinion on Drug Metabolism & Toxicology
https://www.readbyqxmd.com/read/29226720/memantine-induces-apoptosis-and-inhibits-cell-cycle-progression-in-lncap-prostate-cancer-cells
#19
G Albayrak, E Konac, A U Dikmen, C Y Bilen
Deregulated cancer cell metabolism plays an important role in cancer progression. Cancer cell metabolism has been in the centre of attention in therapeutical cancer cell targeting. Repurposed chemical agents, such as metformin and aspirin, have been studied extensively as preventive and therapeutic agents. Metformin is Food and Drug administration (FDA)-approved antidiabetic drug cheaper than other chemotherapeutic agents that were shown to have anticancer effects. Memantine is an FDA-approved Alzheimer's drug...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29226716/-case-report-on-choroidal-effusion-after-oral-acetazolamide-administration-an-unusual-manifestation-of-a-well-known-idiosyncratic-effect
#20
András Hári-Kovács, Judit Soós, Tamás Gyetvai, Andrea Facskó, Mihály Végh
Sulpha drugs are widely employed in medicine for various diseases and disorders. During the last several decades, numerous papers had been published on supra ciliary and posterior choroidal effusion likely presenting as an idiosyncratic effect of these drugs especially of acetazolamide. In each publication, the effusion was associated with either an acute angle-closure glaucoma or transitory myopia or both of these as leading symptoms. In the current publication, authors report on two cases where the acetazolamide-induced choroidal effusion was an accidental finding without either a myopic shift in refraction or an acute elevation in intraocular pressure...
December 2017: Orvosi Hetilap
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