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https://www.readbyqxmd.com/read/28934791/a-practical-guide-for-treatment-of-pain-in-patients-with-systemic-mast-cell-activation-disease
#1
Stefan Wirz, Gerhard J Molderings
Systemic mast cell activation disease (MCAD, a subclass of mastocytosis), which has a prevalence of around 17% (at least in the German population), is characterized by accumulation of genetically altered dysfunctional mast cells with abnormal release of these cells' mediators. Since mast cells affect functions in potentially every organ system, often without causing abnormalities in routine laboratory or radiologic testing, this disease has to be considered routinely in the differential diagnosis of patients with chronic multisystem polymorbidity of a generally inflammatory and allergic theme...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28934264/profiling-molecular-factors-associated-with-pyknosis-and-developmental-arrest-induced-by-an-opioid-receptor-antagonist-and-dihydroartemisinin-in-plasmodium-falciparum
#2
Hiroko Asahi, Shin-Ichi Inoue, Mamoru Niikura, Keisuke Kunigo, Yutaka Suzuki, Fumie Kobayashi, Fujiro Sendo
Malaria continues to be a devastating disease, largely caused by Plasmodium falciparum infection. We investigated the effects of opioid and cannabinoid receptor antagonists on the growth of intraerythrocytic P. falciparum. The delta opioid receptor antagonist 7-benzylidenenaltrexone (BNTX) and the cannabinoid receptor antagonists rimonaband and SR144528 caused growth arrest of the parasite. Notably BNTX and the established antimalarial drug dihydroartemisinin induced prominent pyknosis in parasite cells after a short period of incubation...
2017: PloS One
https://www.readbyqxmd.com/read/28934076/delayed-urinary-symptoms-induced-by-ketamine
#3
María Robles-Martínez, Alfonso C Abad, Violeta Pérez-Rodríguez, Elena Ros-Cucurull, Abderraman Esojo, Carlos Roncero
One of the side-effects of ketamine abuse is genito-urinary damage. This report describes a case of a former ketamine user who presented with urinary symptoms associated with ketamine years after stopping consumption. This was a 26-year-old male with a history of ketamine abuse. He started treatment for alcohol dependence at age 19. He smoked marijuana daily and denied any other drug use. During the follow-up, urinary symptoms were evidenced (dysuria, frequency, urgency, incontinence, nocturia, hematuria, and suprapubic pain)...
September 21, 2017: Journal of Psychoactive Drugs
https://www.readbyqxmd.com/read/28933413/the-role-of-the-nrf2-are-antioxidant-system-in-preventing-cardiovascular-diseases
#4
REVIEW
Robert E Smith, Kevin Tran, Cynthia C Smith, Miranda McDonald, Pushkar Shejwalkar, Kenji Hara
It is widely believed that consuming foods and beverages that have high concentrations of antioxidants can prevent cardiovascular diseases and many types of cancer. As a result, many articles have been published that give the total antioxidant capacities of foods in vitro. However, many antioxidants behave quite differently in vivo. Some of them, such as resveratrol (in red wine) and epigallocatechin gallate or EGCG (in green tea) can activate the nuclear erythroid-2 like factor-2 (Nrf2) transcription factor...
November 11, 2016: Diseases (Basel)
https://www.readbyqxmd.com/read/28933287/modulation-of-abc-transporters-by-nuclear-receptors-physiological-pathological-and-pharmacological-aspects
#5
Juan Pablo Rigalli, Guillermo Nicolás Tocchetti, Johanna Weiss
ABC transporters are membrane proteins mediating the efflux of endo- and xenobiotics. Transporter expression is not static but instead is subject to a dynamic modulation aiming at responding to changes in the internal environment and thus at maintaining homeostatic conditions. Nuclear receptors are ligand modulated transcription factors that get activated upon changes in the intracellular concentrations of the respective agonists and bind to response elements within the promoter of ABC transporters, thus modulating their expression and, consequently, their activity...
September 20, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28932838/engineered-biomimetic-nanovesicles-show-intrinsic-anti-inflammatory-properties-for-the-treatment-of-inflammatory-bowel-diseases
#6
Claudia Corbo, Walter E Cromer, Roberto Molinaro, Naama E Toledano Furman, Kelly A Hartman, Enrica De Rosa, Christian Boada, Xin Wang, David C Zawieja, Marco Agostini, Francesco Salvatore, Bincy P Abraham, Ennio Tasciotti
Inflammatory bowel disease (IBD), which includes Crohn's disease and ulcerative colitis, is a chronic inflammatory condition of the gastrointestinal (GI) tract. Currently, it is treated with immunosuppressant or biologics that often induce severe adverse effects. Thus, there is an urgent clinical need for more specific treatments. To provide a valid therapeutic tool for IBD therapy, in this work we developed biomimetic nanovesicles by manipulating leukocyte membranes to exploit mechanisms of T-cell recruitment during inflammation...
September 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/28932227/targeted-delivery-of-neutralizing-anti-c5-antibody-to-renal-endothelium-prevents-complement-dependent-tissue-damage
#7
Paolo Durigutto, Daniele Sblattero, Stefania Biffi, Luca De Maso, Chiara Garrovo, Gabriele Baj, Federico Colombo, Fabio Fischetti, Antonio F Di Naro, Francesco Tedesco, Paolo Macor
Complement activation is largely implicated in the pathogenesis of several clinical conditions and its therapeutic neutralization has proven effective in preventing tissue and organ damage. A problem that still needs to be solved in the therapeutic control of complement-mediated diseases is how to avoid side effects associated with chronic neutralization of the complement system, in particular, the increased risk of infections. We addressed this issue developing a strategy based on the preferential delivery of a C5 complement inhibitor to the organ involved in the pathologic process...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28932118/fabrication-optimization-and-characterization-of-umbelliferone-%C3%AE-d-galactopyranoside-loaded-plga-nanoparticles-in-treatment-of-hepatocellular-carcinoma-in-vitro-and-in-vivo-studies
#8
Vikas Kumar, Prakash Chandra Bhatt, Mahfoozur Rahman, Gaurav Kaithwas, Hani Choudhry, Fahad A Al-Abbasi, Firoz Anwar, Amita Verma
Umbelliferone β-D-galactopyranoside (UFG), isolated from plants, exhibits promising inhibitory action on numerous diseases. The present research was initiated to develop a suitable delivery system for UFG with an intention to enhance its therapeutic efficacy against diethyl nitrosamine (DEN)-induced hepatocellular carcinoma (HCC) in Wistar rats. UFG-loaded polymeric nanoparticles prepared by sonication were scrutinized for average size, drug loading capacity, zeta potential, and drug release potency in animals...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28932117/multifunctional-folate-receptor-targeting-and-ph-responsive-nanocarriers-loaded-with-methotrexate-for-treatment-of-rheumatoid-arthritis
#9
Jinlong Zhao, Menghui Zhao, Changhui Yu, Xueyan Zhang, Jiaxin Liu, Xinwei Cheng, Robert J Lee, Fengying Sun, Lesheng Teng, Youxin Li
Rheumatoid arthritis (RA) is an autoimmune disease characterized by progressive cartilage and bone destruction. Activated macrophages that overexpress folic acid (FA) receptors play an important role in RA, due to their abundance in inflamed synovial membrane and joints. In an effort to deliver drugs to the inflamed tissues, multifunctional FA receptor-targeting and pH-responsive nanocarriers were developed. They were composed of lipids, polyethylene glycol (PEG)-poly(lactic-co-glycolic acid) (PLGA) forming a hydrophilic shell, FA around the hydrophilic shell as a targeting ligand, and poly(cyclohexane-1,4-diylacetone dimethylene ketal) (PCADK) and PLGA as a hydrophobic core...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28931918/association-of-hla-b-and-hla-drb1-polymorphisms-with-antithyroid-drug-induced-agranulocytosis-in-a-han-population-from-northern-china
#10
Yayi He, Jie Zheng, Qian Zhang, Peng Hou, Feng Zhu, Jian Yang, Wenhao Li, Pu Chen, Shu Liu, Bao Zhang, Bingyin Shi
Antithyroid drug (ATD)-induced agranulocytosis is associated with human leukocyte antigen (HLA) and nearby genes in Southeast Asian and European populations. The susceptibility of the Han population from northern China to ATD-induced agranulocytosis has not been reported. We evaluated the associations of genetic variants at the HLA-B and HLA-DRB1 loci and 32 candidate single nucleotide polymorphisms (SNPs) with agranulocytosis in 29 patients with ATD-induced agranulocytosis and in 140 patients with Graves' disease (GD) as controls...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28930984/high-fat-diet-feeding-and-high-throughput-triacylglyceride-assay-in-drosophila-melanogaster
#11
Soda Balla Diop, Ryan T Birse, Rolf Bodmer
Heart disease is the number one cause of human death worldwide. Numerous studies have shown strong connections between obesity and cardiac malfunction in humans, but more tools and research efforts are needed to better elucidate the mechanisms involved. For over a century, the genetically highly tractable model of Drosophila has been instrumental in the discovery of key genes and molecular pathways that proved to be highly conserved across species. Many biological processes and disease mechanisms are functionally conserved in the fly, such as development (e...
September 13, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28930982/development-of-a-human-preclinical-model-of-osteoclastogenesis-from-peripheral-blood-monocytes-co-cultured-with-breast-cancer-cell-lines
#12
Laura Mercatali, Chiara Spadazzi, Giacomo Miserocchi, Chiara Liverani, Alessandro De Vita, Alberto Bongiovanni, Federica Recine, Dino Amadori, Toni Ibrahim
The crosstalk between tumor cells and bone cells in the bone microenvironment is crucial to understanding the mechanism of bone metastasis formation. We developed an in vitro fully human preclinical model of a co-culture of breast cancer cells and monocytes undergoing differentiation towards osteoclasts. We optimized a model of osteoclastogenesis starting from a sample of peripheral blood collected from healthy donors. Peripheral blood mononuclear cells (PBMCs) were first separated by density gradient centrifugation, seeded at a high density and induced to differentiate by adding two growth factors (GFs): receptor activator of nuclear factor-κB ligand (RANKL) and macrophage colony-stimulating factor (MCSF)...
September 13, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28930776/a-phase1b-dose-escalation-study-of-recombinant-circularly-permuted-trail-in-patients-with-relapsed-or-refractory-multiple-myeloma
#13
Jian Hou, Lugui Qiu, Yaozhong Zhao, Xuejun Zhang, Yan Liu, Zhao Wang, Fang Zhou, Yun Leng, Shifang Yang, Hao Xi, Fuxu Wang, Bing Zhu, Wenming Chen, Peng Wei, Xiangjun Zheng
OBJECTIVES: Circularly permuted tumor necrosis factor-related apoptosis-inducing ligand (CPT), or CPT, is a novel antitumor drug candidate. This phase 1b study evaluated the safety, tolerability, pharmacokinetics (PK), and efficacy of single-agent CPT in patients with relapsed or refractory multiple myeloma (RRMM), and aimed to identify the recommended dose for the phase 2 study. MATERIALS AND METHODS: Patients received single or multiple doses (once daily for 5 consecutive days per 21-d cycle) of CPT intravenous infusion at doses of 5, 6...
September 19, 2017: American Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28930584/metal-and-metalloid-containing-drugs-for-the-treatment-of-trypanosomatid-diseases
#14
Gianni Colotti, Annarita Fiorillo, Andrea Ilari
The trypanosomatid-induced diseases are considered as neglected, because the countries where they kill people are not important markets for western big pharmaceutical companies. However, recently some effort has been made to translate the use of already known drugs to neglected infectious disease. Although many metals are essential to life, many disorders affecting metal homeostasis and bioavailability are responsible for several human diseases. Metals can be toxic even at very low concentrations and semimetals are classified as toxic and dangerous for the environment...
January 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28930279/comparative-evaluation-of-oxidative-stress-modulating-and-dna-protective-activities-of-aqueous-and-methanolic-extracts-of-acacia-catechu
#15
Ashwini Patil, Manisha Modak
Background: Plant-derived bioactive compounds are becoming immensely important as potential drugs. Different solvents are being used for extraction of these phytochemicals. Evaluation of biological activities of aqueous plant extracts is important as water soluble compounds would be more beneficial with respect to certification, safety and commercial issues. Oxidative stress is involved in development of many diseases; therefore, antioxidants are now being looked upon as convincing therapeutics against such diseases...
September 5, 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28930140/identification-of-phlogacantholide-c-as-a-novel-adam10-enhancer-from-traditional-chinese-medicinal-plants
#16
Myriam Meineck, Florian Schuck, Sara Abdelfatah, Thomas Efferth, Kristina Endres
Background: Alzheimer's disease is one of the most prevalent dementias in the elderly population with increasing numbers of patients. One pivotal hallmark of this disorder is the deposition of protein aggregates stemming from neurotoxic amyloid-beta peptides. Synthesis of those peptides has been efficiently prevented in AD model mice by activation of an enzyme called alpha-secretase. Therefore, drugs with the capability to increase the expression of this enzyme, named ADAM10, have been suggested as a valuable therapeutic medication...
December 5, 2016: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28929205/simulation-of-the-osmosis-based-drug-encapsulation-in-erythrocytes
#17
Duobiao Ge, Lili Zou, Chengpan Li, Sen Liu, Shibo Li, Sijie Sun, Weiping Ding
Drug-loaded erythrocytes have been proposed for the treatment of disease. A common way to load drugs into erythrocytes is to apply osmotic shock. Currently, osmosis-based drug encapsulation is studied mainly experimentally, whereas a related theoretical model is still incomplete. In this study, a set of equations is developed to simulate the osmosis-based drug-encapsulation process. First, the modeling is validated with hemolysis rates and the drug-loaded quantities to be found in the literature. Then, the variation of the erythrocyte volume, formation of the pore on the erythrocyte membrane, and quantities of drug loaded into and hemoglobin released from erythrocytes are studied...
September 20, 2017: European Biophysics Journal: EBJ
https://www.readbyqxmd.com/read/28928941/computational-design-of-molecular-motors-as-nanocircuits-in-leishmaniasis
#18
Dipali Kosey, Shailza Singh
Cutaneous leishmaniasis is the most common form of lesihmaniasis, caused by Leishmania major and is spread by the bite of a sandfly .This species infects the macrophages and dendritic cells Due to multi-drug resistance, there is a need for a new therapeutic technique. Recently, a novel molecular motor of Leishmania, Myosin XXI, was classified and characterized. In addition, the drug resistance in this organism has been linked with the overexpression of ABC transporters. Systems biology aims to study the simulation and modeling of natural biological systems whereas synthetic biology deals with building novel and artificial biological parts and devices  Together they have contributed enormously to drug discovery, vaccine design and development, infectious disease detection and diagnostics...
2017: F1000Research
https://www.readbyqxmd.com/read/28928537/antihyperlipidemic-activity-of-cassia-auriculata-flower-extract-in-oleic-acid-induced-hyperlipidemia-in-saccharomyces-cerevisiae
#19
Vijayakumar Rajendran, Anilkumar Krishnegowda, Vasanthi Nachiappan
The Cassia auriculata herb has been traditionally used in India for medicinal purposes to treat hyperglycemia, diabetes, rheumatism, asthma, and skin diseases. In the present study, ethanolic extract of Cassia auriculata flower (Et-CAF) depicted anti-hyperlipidemic effect in the budding yeast cells. The hyperlipidemic conditions were induced in the yeast cells with oleic acid which showed an increase in triacylglycerol (TAG) and sterol esters (SE), and was supported by the mRNA expression of LRO1 and DGA1 (involved in TAG formation); as well as ARE1 and ARE2 (involved in SE formation)...
August 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28928221/upregulation-of-autophagy-related-gene-5-protects-dopaminergic-neurons-in-a-zebrafish-model-of-parkinson-s-disease
#20
Zhan-Ying Hu, Bo Chen, Jing-Pu Zhang, Yuan-Yuan Ma
Parkinson's disease (PD) is one of the most epidemic neurodegenerative diseases, and is characterized by movement disorders arising from loss of midbrain dopaminergic (DA) neurons. Recently, the relationship between PD and autophagy has received considerable attention, but information about the mechanisms involved is lacking. Here, we report that autophagy-related gene 5 (ATG5) is potentially important in protecting dopaminergic neurons in a 1-methyl-4phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD model in zebrafish...
September 19, 2017: Journal of Biological Chemistry
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