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https://www.readbyqxmd.com/read/29235380/pharmacokinetic-drug-evaluation-of-ixazomib-citrate-for-the-treatment-of-multiple-myeloma
#1
Marco Salvini, Rossella Troia, Davide Giudice, Chiara Pautasso, Mario Boccadoro, Alessandra Larocca
multiple myeloma (MM) is a plasma cell disorder that represents the second most frequent hematologic cancer. Although MM is still an incurable disease, prognosis has improved in the last decades thanks to the introduction of novel agents such as proteasome inhibitors (PIs), immunomodulatory drugs, monoclonal antibodies, and histone deacetylase inhibitors. Areas covered: ixazomib is the first oral PI recently approved by Food and Drug Administration (FDA) and European Medicine Agency (EMA) in combination with lenalidomide and dexamethasone as salvage therapy in MM patients...
December 13, 2017: Expert Opinion on Drug Metabolism & Toxicology
https://www.readbyqxmd.com/read/29233772/genetic-toxicological-assessment-and-anti-arthritic-effects-of-an-ethanolic-extract-obtained-from-salvia-lachnostachys-benth-leaves-in-mice
#2
Joyce Alencar Santos, Fernanda da Silva Graciani, Claudia Rodrigues Berno, Maicon Matos Leitão, Elide Pereira Dos Santos, Rodrigo Juliano Oliveira, Cândida Aparecida Leite Kassuya
In the present study, mice were subjected to prolonged treatment with ethanolic extract of Salvia lachnostachys Benth leaves (SLEE), and the inflammatory and arthritic parameters were evaluated using the Complete Freund's Adjuvant (CFA) model. The genotoxicity of SLEE were also assayed using genetic toxicological tests. For the CFA model, 30 male C57BL/6 mice were distributed randomly into four groups (control, 50 mg/kg of SLEE, 100 mg/kg of SLEE and dexamethasone) for the evaluation of hyperalgesia and paw edema for 21 days after injection of CFA into the paw...
December 9, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/29233147/neutrophil-extracellular-traps-are-downregulated-by-glucocorticosteroids-in-lungs-in-an-equine-model-of-asthma
#3
Amandine Vargas, Roxane Boivin, Patricia Cano, Yoana Murcia, Isabelle Bazin, Jean-Pierre Lavoie
BACKGROUND: Severe neutrophilic asthma is poorly responsive to glucocorticosteroids (GC). Neutrophil extracellular traps (NETs) within the lungs have been associated with the severity of airway obstruction and inflammation in asthma, and were found to be unaffected by GC in vitro. As IL-17 is overexpressed in neutrophilic asthma and contributes to steroid insensitivity in different cell types, we hypothesized that NETs formation in asthmatic airways would be resistant to GC through an IL-17 mediated pathway...
December 12, 2017: Respiratory Research
https://www.readbyqxmd.com/read/29231783/dexamethasone-exacerbates-cytotoxic-chemotherapy-induced-lethargy-and-weight-loss-in-female-tumor-free-mice
#4
John Wong, Lisa T Tran, Kaari A Lynch, Lisa J Wood
Cytotoxic chemotherapy can induce a systemic inflammatory response which has been proposed to be an underlying mechanism of cancer treatment related fatigue. Dexamethasone, a synthetic glucocorticoid that has potent anti-inflammatory effects, is incorporated into chemotherapy regimens to prevent chemotherapy-induced nausea and vomiting (CINV). The purpose of this study was to determine whether by suppressing cytotoxic chemotherapy-induced inflammation, dexamethasone could ameliorate chemotherapy induced fatigue/lethargy in tumor free mice...
December 12, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29229442/quantitative-analysis-of-tnf-%C3%AE-il-4-and-il-10-expression-nitric-oxide-response-and-apoptosis-in-encephalitozoon-cuniculi-infected-rabbits
#5
Alicia M Nevárez-Garza, Uziel Castillo-Velázquez, Adolfo Soto-Domínguez, R Montes-de-Oca-Luna, Diana E Zamora-Ávila, Alfredo Wong-González, Luis E Rodríguez-Tovar
The expression of tumor necrosis factor (TNF) -α, interleukin (IL) -4 and IL-10, as well as apoptosis and nitric oxide (NO) levels were measured in the brain and kidneys of immunocompetent and immunosuppressed New Zealand White rabbits infected with Encephalitozoon cuniculi. All of the animals had clinical signs histopathological lesions compatible with encephalitozoonosis and were E. cuniculi-positive by using a carbon immunoassay test. Encephalitozoon cuniculi infection promoted the expression of TNF-α and NO production in the kidneys of infected rabbits, and a synergic effect was observed in animal treated with dexamethasone...
December 8, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29227717/quercetin-restores-corticosteroid-sensitivity-in-cells-from-patients-with-chronic-obstructive-pulmonary-disease
#6
Akihisa Mitani, Aishah Azam, Chaitanya Vuppusetty, Kazuhiro Ito, Nicolas Mercado, Peter J Barnes
Corticosteroid resistance is a major barrier to the effective treatment of chronic obstructive pulmonary disease (COPD). Oxidative stress from cigarette smoke and chronic inflammation is likely to induce this corticosteroid insensitivity. Quercetin is a polyphenol that has been reported to be an active oxygen scavenger as well as a functional adenosine monophosphate-activated protein kinase (AMPK) activator. The aim of this study was to investigate the effect of quercetin on corticosteroid responsiveness in COPD cells...
December 11, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/29227500/enhanced-topical-delivery-of-dexamethasone-by-%C3%AE-cyclodextrin-decorated-thermoresponsive-nanogels
#7
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/29227445/mobile-hearing-testing-applications-and-the-diagnosis-of-sudden-sensorineural-hearing-loss-a-cautionary-tale
#8
Rosh K V Sethi, Iman Ghanad, Vivek Kanumuri, Barbara Herrmann, Elliott D Kozin, Aaron K Remenschneider
OBJECTIVE: Mobile hearing applications (apps) are available for hearing testing, personal sound amplification, as well as hearing aid modulation. Hearing testing apps are gaining popularity, especially in resource-limited settings. The reliability of mobile hearing testing apps, however, is not well characterized. PATIENTS/INTERVENTIONS: A case study of a single patient with a complaint of sudden hearing loss presenting to a tertiary-care hospital. MAIN OUTCOME MEASURE: Comparison of a mobile hearing testing app results with standard audiogram...
January 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29226971/intravenous-dexamethasone-for-prophylaxis-of-postoperative-nausea-and-vomiting-after-administration-of-long-acting-neuraxial-opioids-a-systematic-review-and-meta-analysis
#9
REVIEW
S Grape, I Usmanova, K R Kirkham, E Albrecht
Long-acting neuraxial opioids provide excellent analgesia after surgery, but are associated with higher rates of postoperative nausea and vomiting. Dexamethasone effectively prevents postoperative nausea and vomiting after general anaesthesia, but its value in patients receiving long-acting neuraxial opioids is undetermined. Therefore, the objective of this meta-analysis was to assess the prophylactic anti-emetic efficacy of intravenous (i.v.) dexamethasone in this population. The study methodology followed the PRISMA statement guidelines...
December 11, 2017: Anaesthesia
https://www.readbyqxmd.com/read/29226650/multiple-nonleukemic-myeloid-sarcoma-associated-hemophagocytic-lymphohistiocytosis-in-an-adult
#10
Jingwen Zhang, Yunxin Zeng, Xiangzhong Zhang, Wenxing Lai, Yuxin Chen, Ruozhi Xiao
BACKGROUND: Nonleukemic myeloid sarcoma (MS) occurs rarely. Hemophagocytic lymphohistiocytosis (HLH) is a rare and potentially fatal condition. We report a rare case of nonleukemic MS associated with HLH. METHODS: Hematologic investigation, 18F-FDG PET/CT, bone marrow aspirate and biopsy, and lymph node biopsy were performed in a 25-year-old male patient. RESULTS: The patient was given a short-term treatment of etoposide and dexamethasone to control HLH...
November 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/29226110/comparison-effect-of-promethazine-dexamethasone-and-metoclopramide-dexamethasone-on-postoperative-nausea-and-vomiting-after-laparascopic-gastric-placation-a-randomized-clinical-trial
#11
Mohammad Talebpour, Naser Ghiasnejad Omrani, Farsad Imani, Reza Shariat Moharari, Pejman Pourfakhr, Mohammad Reza Khajavi
Background: Laparoscopic gastric plication (LGP) is a technique in the restrictive category of bariatric procedures that reduces the gastric volume and increases intragastric pressure. Nausea and vomiting are the most common complications after this procedure. The goal of this research is to compare the combined effect of promethazine/dexamethasone versus Metoclopramide/ dexamethasone on the prevention of nausea and vomiting after LGP. Methods: In recovery, the patients were divided into two groups, the Metoclopramide group which was given Metoclopramide 10 mg plus dexamethasone 4 mg/8 hours intravenous for 48 hours, and the promethazine group which was given promethazine 50 mg /12 hours, intramuscular for the first 24 hours and then promethazine 25 mg/12 hours for the next 24 hours plus dexamethasone 4 mg/8 hours intravenous for 48 hours...
August 2017: Anesthesiology and Pain Medicine
https://www.readbyqxmd.com/read/29225460/intravitreal-bevacizumab-injections-versus-dexamethasone-implant-for-treatment-na%C3%A3-ve-retinal-vein-occlusion-related-macular-edema
#12
Ilkka Laine, Juha-Matti Lindholm, Petteri Ylinen, Raimo Tuuminen
Purpose: To compare the short-term effects of three monthly intravitreal bevacizumab (IVB) injections to single dexamethasone (DEX) implantation in treatment-naïve patients with cystoid macular edema (CME) secondary to branch (BRVO) and central retinal vein occlusion (CRVO). Design: A retrospective single-center study. Subjects: A total of 135 eyes of 135 patients with BRVO (n=83) and CRVO (n=52). Methods: Changes in clinical parameters were recorded before treatment and at the first and third month after commencement of IVB (n=121) and DEX (n=14)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29222744/activation-of-intestinal-gr-fxr-and-ppar%C3%AE-ugt-signaling-exacerbates-ibuprofen-induced-enteropathy-in-mice
#13
Zhiqiang Lu, Yuanfu Lu, Xue Wang, Fangyu Wang, Youcai Zhang
Nonsteroidal anti-inflammatory drugs (NSAIDs)-induced small intestinal injury (enteropathy) occurs in about two-thirds of regular NSAID users. To date, there is no proven-effective treatment for NSAID enteropathy, and its underlying mechanism remains obscure. The present study showed that glucocorticoids are an important determinant of NSAID enteropathy. High dose dexamethasone (DEX, 75 mg/kg) markedly exacerbated the acute toxicity of ibuprofen (IBU, 200 mg/kg) in the small intestine of mice, which was not due to the pregnane-X-receptor pathway...
December 8, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29222258/fixed-duration-vs-continuous-therapy-in-multiple-myeloma
#14
REVIEW
Heinz Ludwig, Niklas Zojer
The introduction of new drugs with less severe toxicity profiles than those of conventional antimyeloma agents allowed the evaluation of continuous therapy compared with fixed duration therapy. In transplant-eligible patients, consolidation therapy with bortezomib or bortezomib-based regimens showed significant progression-free survival (PFS) benefit in cytogenetic standard-risk patients and to a lesser extent, high-risk patients. Continuous therapy with lenalidomide maintenance treatment after autologous stem cell transplantation resulted in a significant survival gain...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29222031/evaluation-of-the-effect-of-mesotherapy-in-the-management-of-back-pain-in-police-working-dog
#15
João Ca Alves, Ana Mmp Dos Santos, Ângelo Dp Fernandes
OBJECTIVE: To evaluate the feasibility and effectiveness of mesotherapy in dogs compared with a positive control group. STUDY DESIGN: Experimental, randomized, blinded study. ANIMALS: Fifteen working police dogs with chronic back pain. METHODS: Animals were divided randomly into control (CG; n = 5) and treatment groups (TG; n = 10). A combination of 140 mg lidocaine, 15 mg dexamethasone and 20 mg thiocolchicoside was administered to group TG along with a 70-day course of a placebo, administered as if it was carprofen...
August 19, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/29220719/house-dust-mite-allergen-causes-certain-features-of-steroid-resistant-asthma-in-high-fat-fed-obese-mice
#16
Vijay Pal Singh, Ulaganathan Mabalirajan, Kunal Pratap, Devika Bahal, Deepanshu Maheswari, Atish Gheware, Aabha Bajaj, Lipsa Panda, Ashish Jaiswal, Arjun Ram, Anurag Agrawal
Obesity is a high risk factor for diseases such as cardiovascular, metabolic syndrome and asthma. Obese-asthma is another emerging phenotype in asthma which is typically refractive to steroid treatment due to its non-classical features such as non-eosinophilic cellular inflammation. The overall increased morbidity, mortality and economical burden in asthma is mainly due to steroid resistant asthma. In the present study, we used high fat diet induced obese mice which when sensitized with house dust mite (HDM) showed steroid resistant features...
December 4, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29218495/systemic-epstein-barr-virus-positive-t-cell-lymphoproliferative-disorders-of-childhood-with-fulminant-leukocytosis-and-tumor-lysis-a-case-report-with-autopsy-findings
#17
Sachie Wada, Takayuki Suzuki, Koichi Kitazume, Akira Fujita, Seiichiro Shimizu
Systemic Epstein-Barr virus (EBV)-positive T-cell lymphoproliferative disorders (T-LPD) of childhood is an extremely rare disease characterized by an aggressive clinical course and very poor prognosis. We report an adolescent male with systemic EBV-positive T-LPD of childhood after primary EBV infection, resulting in a fatal clinical course within 9 days, along with autopsy findings. A 19-year-old male without an immunocompromised status presented with an acute onset of high fever, and was hospitalized for persistent fever, vomiting and diarrhea on the 5th day from onset...
December 7, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/29215076/a-novel-electroactive-agarose-aniline-pentamer-platform-as-a-potential-candidate-for-neural-tissue-engineering
#18
Payam Zarrintaj, Behnaz Bakhshandeh, Iraj Rezaeian, Behnam Heshmatian, Mohammad Reza Ganjali
Neuronal disorder is an important health challenge due to inadequate natural regeneration, which has been responded by tissue engineering, particularly with conductive materials. A bifunctional electroactive scaffold having agarose biodegradable and aniline pentamer (AP) conductive parts was designed that exhibits appropriate cell attachment/compatibility, as detected by PC12 cell seeding. The developed carboxyl-capped aniline-pentamer improved agarose cell adhesion potential, also the conductivity of scaffold was in the order 10-5 S/cm reported for cell membrane...
December 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29214740/a-prospective-multicentre-randomized-placebo-controlled-superiority-trial-in-patients-with-suspected-bacterial-endophthalmitis-after-cataract-surgery-on-the-adjuvant-use-of-intravitreal-dexamethasone-to-intravitreal-antibiotics
#19
Sonia Manning, Luana C Ugahary, Eric W Lindstedt, René J Wubbels, Jaap T van Dissel, Jan T G Jansen, Ivan Gan, Arnoud T van Goor, Carlien A Bennebroek, Dymph J van der Werf, Annette Ossewaarde-van Norel, Chris C Mayland Nielsen, Mauk Tilanus, Pieter R van den Biesen, Peter A Schellekens, Ellen La Heij, Koorosh Faridpooya, Koen van Overdam, Marc Veckeneer, Jan C van Meurs
PURPOSE: We aimed to determine whether intravitreal dexamethasone as an adjuvant to intravitreal antibiotics is beneficial in the treatment of suspected bacterial endophthalmitis after cataract surgery. METHODS: Randomized, placebo-controlled superiority trial in three tertiary referral centres in the Netherlands. Patients with suspected bacterial endophthalmitis within 6 weeks after cataract surgery were eligible. A diagnostic vitreous biopsy was taken for culture, and patients received intravitreal injections of 400 μg dexamethasone (without preservatives) or placebo, in addition to 0...
December 7, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29213063/efficacy-and-safety-of-hd-mtx-based-systemic-chemotherapy-regimens-retrospective-study-of-induction-therapy-for-primary-central-nervous-system-lymphoma-in-chinese
#20
Xiao Han, Yali Ji, Mingqi Ouyang, Tienan Zhu, Daobin Zhou
We performed a retrospective study of 49 patients with newly diagnosed primary central nervous system lymphoma (PCNSL), to compare the efficacy and safety of different high-dose methotrexate (HD-MTX) based systemic chemotherapy regimens as induction therapy. 25 patients received AB ± R alternative regimen (consist methotrexate, ifosfamide, vindesine, dexamethasone, carmustine and teniposide), while others received HD-MTX ± R regimen. The complete response rate and overall response rate of AB ± R group and HD-MTX ± R group were 36...
December 6, 2017: Scientific Reports
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