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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/29228450/mir-21-enhanced-glioma-cells-resistance-to-carmustine-via-decreasing-spry2-expression
#2
G-B Wang, J-H Liu, J Hu, K Xue
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/29228449/igfbp2-induces-spry1-expression-via-nf-%C3%AE%C2%BAb-signaling-pathway-in-glioblastoma-multiforme-gbm
#3
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/29228447/ethical-and-medico-legal-remarks-on-uterus-transplantation-may-it-solve-uterine-factor-infertility
#4
S Zaami, E Marinelli, N M di Luca, G Montanari Vergallo
Uterus transplantation was firstly tested with animal trials sixty-five years ago. Despite several successful attempts in human subjects, the different procedures still lay at the experimental stage, in need of further studies and investigations before they can be considered as standard clinical practices. Uterus transplant cannot be regarded as a life-saving procedure, but rather a method to restore woman ability to procreate, when lost, thus improving her quality of life. Uterus transplant is a complex surgical procedure and presents significant health threats...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29228383/oral-fungal-bacterial-biofilm-models-in-vitro-a-review
#5
Marlene Chevalier, Stephane Ranque, Isabelle Prêcheur
Inclusion of fungi as commensals in oral biofilm is an important innovation in oral biology, and this work aimed to review the literature on the available biofilm and related disease in vitro models. Actually, thousands of bacterial and around one hundred of fungal phylotypes can colonize the oral cavity. Taxonomic profiling combined with functional expression analysis has revealed that Candida albicans, Streptococcus mutans and prominent periodontopathogens are not always present or numerically important in candidiasis, caries, or periodontitis lesions...
December 8, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/29228376/effects-of-cyclophosphamide-cyp-and-or-doxorubicin-dox-in-a-murine-model-of-post-chemotherapy-cognitive-impairment
#6
Timothy J Flanigan, Julie E Anderson, Ikram Elayan, Antiño R Allen, Sherry A Ferguson
Post-chemotherapy cognitive impairment, or PCCI, is a common complaint, particularly among breast cancer patients. However, the exact nature of PCCI appears complex. To model the human condition, ovariectomized C57BL/6J mice were treated iv weekly for 4 weeks with saline, 2 mg/kg doxorubicin (DOX), 50 mg/kg cyclophosphamide (CYP), or DOX+CYP. For the subsequent 10 weeks, mice were assessed on several behavioral tests, including those measuring spatial learning and memory. After sacrifice, hippocampal spine density and morphology in the dentate gyrus, CA1, and CA3 regions were measured...
December 7, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29228345/mechanisms-and-mediators-of-hypertension-induced-by-erythropoietin-and-related-molecules
#7
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/29228024/detection-of-duo-schistosome-infection-from-filtered-urine-samples-from-school-children-in-zambia-after-mda
#8
Megan J Hessler, Austin Cyrs, Steven C Krenzke, El Shaimaa Mahmoud, Chummy Sikasunge, James Mwansa, Nilanjan Lodh
Schistosomiasis is one of the major Neglected Tropical Diseases (NTDs) in sub-Saharan Africa. In sub-Saharan Africa, two major human schistosome species namely Schistosoma mansoni and S. haematobium often occur sympatrically largely affecting children. Recognizing the public health impact of Schistosomiasis, the World Health Organization (WHO) is urging member states to regularly treat at least 75% and up to 100%, of all school-aged children at risk of morbidity. For control strategies based on targeted mass drug administration (MDA) to succeed it is essential to have a simple and sensitive test for monitoring the success of these interventions...
2017: PloS One
https://www.readbyqxmd.com/read/29227908/the-selectivity-of-artemisinin-based-drugs-on-human-lung-normal-and-cancer-cells
#9
Xinyang Li, Shiyan Gu, Donglei Sun, Huangmei Dai, Hongyu Chen, Zunzhen Zhang
Artemisinin-based drugs are documented to possess anticancer potential that is selectively effective to cancer cells. However, this selectivity is disputable in different studies and the mechanism is still unclear. To clarify this discrepancy, this study employed five assays to evaluate the cytotoxic effects of artemisinin and artesunate on normal human bronchial epithelial (HBE) cells and lung adenocarcinoma A549 cells. The results of five cytotoxic assays coherently showed that artemisinin and artesunate caused dose-dependent cytotoxicity in both HBE and A549 cells with a slight selectivity to A549 cells...
December 7, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/29227881/experiences-with-compulsory-drug-detention-among-people-who-inject-drugs-in-bangkok-thailand-a-qualitative-study
#10
Thomas Kerr, Will Small, Prempreeda Pramoj Na Ayutthaya, Kanna Hayashi
BACKGROUND: Thailand has employed a system of compulsory drug detention centres (CDDCs) where drug users are confined following arrest. Although concerns regarding CDDCs persist, research focused on CDDCs in Thailand is limited. We undertook this study to explore experiences with CDDCs among people who inject drugs (PWID) in Thailand. METHODS: Data were derived from the Mitsampan Community Research Project, a mixed- methods study involving PWID in Bangkok. Between July 2011 and June 2012, semi-structured, in-depth interviews were conducted with PWID who had been exposed to CDDCs...
December 8, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/29227795/divergent-effects-of-levetiracetam-and-tiagabine-against-spontaneous-seizures-in-adult-rats-following-neonatal-hypoxia
#11
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
#12
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/29227563/expression-and-enzyme-activity-of-cytochrome-p450-enzymes-cyp3a4-and-cyp3a5-in-human-skin-and-tissue-engineered-skin-equivalents
#13
Sarah A Smith, Helen E Colley, Parveen Sharma, Klaudia M Slowik, Rowena Sison-Young, Andrew Sneddon, Steven D Webb, Craig Murdoch
CYP3A4 and CYP4A5 share specificity for a wide range of xenobiotics with the CYP3 subfamily collectively involved in the biotransformation of approximately 30% of all drugs. CYP3A4/5 mRNA transcripts have been reported in the skin yet knowledge of their protein expression and function is lacking. In this study, we observed gene and protein expression of CYP3A4/5 in both human skin and tissue-engineered skin equivalents (TESE), and enzyme activity was detected using the model substrate benzyl-O-methyl-cyanocoumarin...
December 11, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/29227540/human-t-lymphotropic-virus-1-htlv-1-pathogenesis-a-systems-virology-study
#14
Sayed-Hamidreza Mozhgani, Mohadeseh Zarei Ghobadi, Majid Teymoori-Rad, Talat Mokhtari Azad, Mehdi Mirzaie, Mohsen Sheikhi, Seyed Mohammad Jazayeri, Ramin Shabahrami, Hedayatollah Ghourchian, Mohieddin Jafari, Seyed Abdolrahim Rezaee, Mehdi Norouzi
The main mechanisms of interaction between Human T-lymphotropic virus type 1 (HTLV-1) and its hosts in manifestation of related diseases including HTLV-1 associated myelopathy/tropical spastic paraparesis (HAM/TSP) and Adult T-cell leukemia/lymphoma (ATLL) are yet to be determined. It is pivotal to find out the changes in the genes expression toward an asymptomatic or symptomatic states. To this end, the systems virology analysis was performed. Firstly, the differentially expressed genes (DEGs) were taken pairwise among the four sample sets of Normal, Asymptomatic Carriers (ACs), ATLL, and HAM/TSP...
December 11, 2017: Journal of Cellular Biochemistry
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/29227471/inhibiting-mitochondrial-phosphate-transport-as-an-unexploited-antifungal-strategy
#16
Catherine A McLellan, Benjamin M Vincent, Norma V Solis, Alex K Lancaster, Lucas B Sullivan, Cathy L Hartland, Willmen Youngsaye, Scott G Filler, Luke Whitesell, Susan Lindquist
The development of effective antifungal therapeutics remains a formidable challenge because of the close evolutionary relationship between humans and fungi. Mitochondrial function may present an exploitable vulnerability because of its differential utilization in fungi and its pivotal roles in fungal morphogenesis, virulence, and drug resistance already demonstrated by others. We now report mechanistic characterization of ML316, a thiohydantoin that kills drug-resistant Candida species at nanomolar concentrations through fungal-selective inhibition of the mitochondrial phosphate carrier Mir1...
December 11, 2017: Nature Chemical Biology
https://www.readbyqxmd.com/read/29227443/associations-between-medicare-part-d-and-out-of-pocket-spending-hiv-viral-load-adherence-and-adap-use-in-dual-eligibles-with-hiv
#17
Nadya Belenky, Brian W Pence, Stephen R Cole, Stacie B Dusetzina, Andrew Edmonds, Jonathan Oberlander, Michael W Plankey, Adebola Adedimeji, Tracey E Wilson, Jennifer Cohen, Mardge H Cohen, Joel E Milam, Elizabeth T Golub, Adaora A Adimora
BACKGROUND: The implementation of Medicare part D on January 1, 2006 required all adults who were dually enrolled in Medicaid and Medicare (dual eligibles) to transition prescription drug coverage from Medicaid to Medicare part D. Changes in payment systems and utilization management along with the loss of Medicaid protections had the potential to disrupt medication access, with uncertain consequences for dual eligibles with human immunodeficiency virus (HIV) who rely on consistent prescription coverage to suppress their HIV viral load (VL)...
January 2018: Medical Care
https://www.readbyqxmd.com/read/29227282/hypoxia-induced-upregulation-of-bmx-kinase-mediates-therapeutic-resistance-in-acute-myeloid-leukemia
#18
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/29227146/time-dependent-recovery-of-human-synovial-membrane-mesenchymal-stem-cell-function-after-high-dose-steroid-therapy-case-report-and-laboratory-study
#19
Yukihiko Yasui, David A Hart, Norihiko Sugita, Ryota Chijimatsu, Kota Koizumi, Wataru Ando, Yu Moriguchi, Kazunori Shimomura, Akira Myoui, Hideki Yoshikawa, Norimasa Nakamura
BACKGROUND: The use of mesenchymal stem cells from various tissue sources to repair injured tissues has been explored over the past decade in large preclinical models and is now moving into the clinic. PURPOSE: To report the case of a patient who exhibited compromised mesenchymal stem cell (MSC) function shortly after use of high-dose steroid to treat Bell's palsy, who recovered 7 weeks after therapy. STUDY DESIGN: Case report and controlled laboratory study...
December 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29227101/the-magic-of-crystal-structure-based-inhibitor-optimization-development-of-a-butyrylcholinesterase-inhibitor-with-picomolar-affinity-and-in-vivo-activity
#20
Urban Košak, Boris Brus, Damijan Knez, Simon Žakelj, Jurij Trontelj, Anja Pišlar, Roman Šink, Marko Jukič, Marko Živin, Adrian Podkowa, Florian Nachon, Xavier Brazzolotto, Jure Stojan, Janko Kos, Nicolas Coquelle, Kinga Salat, Jacques-Philippe Colletier, Stanislav Gobec
The enzymatic activity of butyrylcholinesterase (BChE) in the brain increases with the progression of Alzheimer's disease, thus classifying BChE as a promising drug target in advanced Alzheimer's disease. We used structure-based drug-discovery approaches to develop potent, selective and reversible human BChE inhibitors. The most potent, compound 3, had a picomolar inhibition constant versus BChE due to strong cation-π interactions, as revealed by the solved crystal structure of its complex with human BChE...
December 11, 2017: Journal of Medicinal Chemistry
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