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https://www.readbyqxmd.com/read/29779119/a-chemosensitizer-drug-disulfiram-prevents-doxorubicin-induced-cardiac-dysfunction-and-oxidative-stress-in-rats
#1
Varsha K Sonawane, Umesh B Mahajan, Sachin D Shinde, Subhajit Chatterjee, Sandip S Chaudhari, Harshada A Bhangale, Shreesh Ojha, Sameer N Goyal, Chanakya N Kundu, Chandragouda R Patil
In the present study, the preventive effects of orally administered disulfiram (DS) against the doxorubicin (DOX)-induced cardiotoxicity were investigated in rats. DS was orally administered for 7 days at doses of 2, 10, and 50 mg/kg/day. DOX (30 mg/kg) was intraperitoneally administered on the 5th day of the initiation of DS treatment. Within 48 h of injection, DOX treatment significantly altered ECG, elevated the ST height, and increased the QT and QRS intervals. It reduced the cardiac levels of injury markers like creatine kinase isoenzyme-MB and lactate dehydrogenase...
May 10, 2018: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/29778525/mucus-penetrating-nanoparticles-promising-drug-delivery-systems-for-the-photodynamic-therapy-of-intestinal-cancer
#2
Juliane Anderski, Laura Mahlert, Dennis Mulac, Klaus Langer
Photodynamic therapy (PDT) is an auspicious therapy approach for the treatment of cancer. Despite its numerous benefits, the drug delivery of the used photosensitizer (PS) to target locations inside the human body remains a main therapy challenge, since the standard intravenous PS injection often causes systemic side-effects. To circumvent this therapy drawback, the oral application represents a promising administration alternative. Especially for the treatment of intestinal cancer it offers the possibility of a local treatment with a reduced likelihood for adverse drug reactions...
May 17, 2018: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/29778126/is-parenteral-levothyroxine-therapy-safe-in-intractable-hypothyroidism
#3
Hande Peynirci, Bengur Taskiran, Erdinc Erturk, Pınar Sisman, Canan Ersoy
CASE: A 32-year old woman was admitted to the hospital due to intractable hypothyroidism refractory to high dose of oral l-thyroxine therapy. She underwent total thyroidectomy and radioactive iodine therapy due to papillary thyroid cancer. After excluding poor adherence to therapy and malabsorption, levothyroxine absorption test was performed. No response was detected. Transient neurologic symptoms developed during the test. She developed 3 attacks consisting of neurologic symptoms during high dose administration...
June 2018: Journal of the National Medical Association
https://www.readbyqxmd.com/read/29777637/thymol-inhibits-oral-squamous-cell-carcinoma-growth-via-mitochondria-mediated-apoptosis
#4
Jorge J De La Chapa, Prajjal Kanti Singha, Debbie R Lee, Cara B Gonzales
BACKGROUND: Thymol is a Transient Receptor Potential Ankyrin Subtype 1 channel, (TRPA1) agonist found in thyme and oregano. Thymol has antioxidant, anti-inflammatory, and antimicrobial properties; thus thymol is added to many commercially available products including Listerine mouthwash. Thymol is also cytotoxic to HL-60 (acute promyelotic leukemia) cells in vitro. Therefore, we evaluated the effects of thymol against oral squamous cell carcinoma (OSCC) and its anticancer mechanism-of-action...
May 19, 2018: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29777201/novel-smoothened-inhibitors-for-therapeutic-targeting-of-na%C3%A3-ve-and-drug-resistant-hedgehog-pathway-driven-cancers
#5
Qing-Rou Li, Hui Zhao, Xue-Sai Zhang, Henk Lang, Ker Yu
The G protein-coupled receptor (GPCR) smoothened (SMO) is a key signaling component of the sonic hedgehog (Hh) pathway and a clinically validated target for cancer treatment. The FDA-approved SMO inhibitors GDC-0449/Vismodegib and LDE225/Sonidegib demonstrated clinical antitumor efficacy. Nevertheless, relatively high percentage of treated patients would eventually develop acquired cross resistance to both drugs. Here, based on published structure and activity of GDC-0449 inhibitor class, we replaced its amide core with benzimidazole which retained bulk of the SMO-targeting activity as measured in our Hh/SMO/Gli1-reporter system...
May 18, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29776830/pharmacological-modulation-of-radiation-induced-oral-mucosal-complications
#6
S Bockel, A Vallard, A Lévy, S François, M Bourdis, C Le Gallic, D Riccobono, P Annede, M Drouet, Y Tao, P Blanchard, É Deutsch, N Magné, C Chargari
Radiation-induced mucositis is a common toxicity, especially in patients with head and neck cancers. Despite recent technological advances in radiation therapy, such as intensity-modulated radiotherapy, radiation-induced mucositis is still causing treatment disruptions, negatively affecting patients' long and short term quality of life, and impacting medical resources use with economic consequences. The objective of this article was to review the latest updates in the management of radiation-induced mucositis, with a focus on pharmaceutical strategies for the prevention or treatment of mucositis...
May 15, 2018: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/29775809/transient-asymptomatic-pulmonary-opacities-during-osimertinib-treatment-and-its-clinical-implication
#7
Hansang Lee, Ho Yun Lee, Jong-Mu Sun, Se-Hoon Lee, Youjin Kim, Song Ee Park, Jin Seok Ahn, Keunchil Park, Myung-Ju Ahn
INTRODUCTION: Osimertinib is an oral, potent, irreversible 3rd generation EGFR tyrosine kinase inhibitor (TKI) approved for the treatment of T790M positive non-small cell lung cancer (NSCLC) patients who failed 1st or 2nd generation EGFR TKIs. Interstitial lung disease (ILD) is a rare complication with osimertinib, occurring in 1-3%. Recently, relatively high incidence of transient asymptomatic pulmonary opacities (TAPOs) which are different from ILD has been described. However, its clinical implication has not been fully determined yet...
May 15, 2018: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/29775618/association-between-klotho-expression-and-malignancies-risk-and-progression-a-meta-analysis
#8
Song Mao, Xiaopeng Wang, Liangxia Wu, Dou Zang, Wenjing Shi
BACKGROUND: We assessed the association between tissue klotho protein expression and the risk and progression of malignancies. METHODS: We searched the electronic databases for the studies regarding the relationship between tissue klotho protein expression and risk/progression of malignancies through January 2018. We calculated the pooled odds ratios (ORs) and corresponding 95% confidence intervals (CIs) to evaluate the impact of tissue klotho protein expression on malignancies...
May 15, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29775573/indole-3-carbinol-i3c-enhances-the-sensitivity-of-murine-breast-adenocarcinoma-cells-to-doxorubicin-dox-through-inhibition-of-nf-%C3%AE%C2%BA%C3%AE-blocking-angiogenesis-and-regulation-of-mitochondrial-apoptotic-pathway
#9
Subhadip Hajra, Arup Ranjan Patra, Abhishek Basu, Prosenjit Saha, Sudin Bhattacharya
Various epidemiological and preclinical studies have already established the cancer chemopreventive potential of naturally occurring glucosinolate breakdown product Indole-3-Carbinol (I3C) as well as its abilities to induce selective cell death towards malignant cell. Therefore, the objective of the present study is to improve the therapeutic efficacy and prevention of doxorubicin (DOX)-induced toxicity, by the concurrent use of Indole-3-Carbinol (I3C). In this study, I3C was administered (20 mg/kg b.w., p...
May 15, 2018: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29775310/fragment-based-discovery-of-a-potent-orally-bioavailable-inhibitor-which-modulates-the-phosphorylation-and-catalytic-activity-of-erk1-2
#10
Tom D Heightman, Valerio Berdini, Hannah Braithwaite, Ildiko Maria Buck, Megan Cassidy, Juan Castro, Aurelie Courtin, James E H Day, Charlotte East, Lynsey Fazal, Brent Graham, Charlotte M Griffiths-Jones, John F Lyons, Vanessa Martins, Sandra Muench, Joanne M Munck, David Norton, Marc O'Reilly, Nick Palmer, Puja Pathuri, Michael Reader, David C Rees, Sharna J Rich, Caroline Richardson, Harpreet Saini, Neil T Thompson, Nicola G Wallis, Hugh Walton, Nicola E Wilsher, Alison J-A Woolford, Michael Cooke, David Cousin, Stuart Onions, Jonathan Shannon, John Watts, Christopher W Murray
Aberrant activation of the MAPK pathway drives cell proliferation in multiple cancers. Inhibitors of BRAF and MEK kinases are approved for the treatment of BRAF mutant melanoma, but resistance frequently emerges, often mediated by increased signalling through ERK1/2. Here we describe the fragment based generation of ERK1/2 inhibitors which block catalytic phosphorylation of downstream substrates such as RSK but also modulate phosphorylation of ERK1/2 by MEK without directly inhibiting MEK. X-ray crystallographic and biophysical fragment screening followed by structure-guided optimization and growth from the hinge into a pocket proximal to the C-α helix afforded highly potent ERK1/2 inhibitors with excellent kinome selectivity...
May 18, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29774014/oral-microbiota-community-dynamics-associated-with-oral-squamous-cell-carcinoma-staging
#11
Chia-Yu Yang, Yuan-Ming Yeh, Hai-Ying Yu, Chia-Yin Chin, Chia-Wei Hsu, Hsuan Liu, Po-Jung Huang, Song-Nian Hu, Chun-Ta Liao, Kai-Ping Chang, Yu-Liang Chang
Oral squamous cell carcinoma (OSCC) is a highly aggressive cancer and the fourth leading malignancy among males in Taiwan. Some pathogenic bacteria are associated with periodontitis and oral cancer. However, the comprehensive profile of the oral microbiome during the cancer's progression from the early stage to the late stage is still unclear. We profiled the oral microbiota and identified bacteria biomarkers associated with OSCC. The microbiota of an oral rinse from 51 healthy individuals and 197 OSCC patients at different stages were investigated using 16S rRNA V3V4 amplicon sequencing, followed by bioinformatics and statistical analyses...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29773124/otolaryngology-and-the-global-burden-of-disease
#12
REVIEW
James E Saunders, Zane Rankin, Kathryn Y Noonan
The Global Burden of Disease (GBD) project provides longitudinal analysis of the global burden of otolaryngologic diseases by measuring the all-cause mortality, years of life lost, the years of life lived with disability, and disability-adjusted life years. Hearing loss burden is assessed overall and as sequelae of other diseases, such as otitis media or meningitis. Using these measures, we can appreciate the high prevalence and disability related to hearing loss globally. Other otolaryngologic diseases that contribute to the GBD include otitis media, cleft lip and palate, head and neck cancer, facial trauma, and oral disorders...
June 2018: Otolaryngologic Clinics of North America
https://www.readbyqxmd.com/read/29772996/beneficial-protective-effect-of-troxerutin-on-nickel-induced-renal-dysfunction-in-wistar-rats
#13
Perumal Elangovan, Ramalingam Ramakrishnan, Kasinathan Amudha, Abdulkadhar Mohamed Jalaludeen, Gunasekaran Karuna Sagaran, Frankline Rajan Babu, Leelavinothan Pari
Nickel (Ni) is an important environmental toxicant that can cause cancer and cardiovascular disease. The aim of this study was to examine the protective effects of troxerutin (Txn) Ni-induced renal dysfunction in rats using biochemical and histopathological approaches. Nickel (20 mg/kg body weight [b.w.]/day) was administered intraperitoneally (i.p.) for 20 days. Renal damage from Ni toxicity was evident from the changed levels of serum and urinary markers in Ni-treated rats. The levels of lipid peroxidation markers also significantly increased, while the levels of nonenzymatic and enzymatic antioxidants significantly decreased in the kidney of Ni-intoxicated rats...
2018: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29772595/-case-report-metamizole-induced-agranulocytosis
#14
Falk A Gonnert, Winfried Meißner
Metamizole is primarily used for severe perioperative pain, acute injury and colic, and cancer pain. For other acute/chronic forms of pain and high fever, it should only be used if unresponsive to other agents. Metamizole should not be used for middle and low pain. Oral application should be preferred. A contraindication for metamizole is leukopenia. Clinical signs for agranulocytosis are fever, tonsillitis and aphthous stomatitis.
May 2018: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
https://www.readbyqxmd.com/read/29772457/in-vitro-and-in-vivo-metabolic-investigation-of-the-palbociclib-by-uhplc-q-tof-ms-ms-and-in-silico-toxicity-studies-of-its-metabolites
#15
Balasaheb B Chavan, Shristy Tiwari, Shankar G, Rakesh D Nimbalkar, Prabha Garg, Srinivas R, M V N Kumar Talluri
Palbociclib (PAB) is a CDK4/6 inhibitor and U. S Food and Drug Administration (FDA) granted regular approval for the treatment of hormone receptor (HR) positive, metastatic breast cancer in combination with an aromatase inhibitor in postmenopausal women. Metabolite identification is a crucial aspect during drug discovery and development as the drug metabolites may be pharmacologically active or possess toxicological activity. As there are no reports on the metabolism studies of the PAB, the present study focused on investigation of the in vitro and in vivo metabolic fate of the drug...
May 14, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29772443/mir-92a-regulates-oral-squamous-cell-carcinoma-oscc-cell-growth-by-targeting-foxp1-expression
#16
Jun Guo, Ning Wen, Sefei Yang, Xiaohang Guan, Song Cang
Increasing evidence indicates that microRNAs dysregulation contributes to the development and progression of various human cancers, including oral squamous cell carcinoma (OSCC). However, little is known about the potential role of microRNA-92a (miR-92a) in OSCC. Thus, the aim of this study was to investigate the effects of miR-92a expression on OSCC cell growth, apoptosis and tumorigenesis. Real-time quantitative polymerase chain reaction was used to detect the expression level of miR-92a in primary tumor tissues and OSCC cell lines...
May 14, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29771835/the-arterialized-facial-artery-musculo-mucosal-island-flap-for-post-oncological-tongue-reconstruction
#17
Alessandro Moro, Gianmarco Saponaro, Piero Doneddu, Daniele Cervelli, Sandro Pelo, Giulio Gasparini, Umberto Garagiola, Giuseppe D'Amato, Mattia Todaro
BACKGROUND: In 1992, Pribaz described the facial artery musculomucosal flap (FAMM), an axial musculomucosal flap based on the facial artery. The FAMM flap, a modification of the nasolabial and buccal mucosal flaps, is widely used in the reconstruction of defects in the oral cavity. Many modifications of this flap have been described in the literature. Here we aimed to explore the use of an arterialized tunnelized FAMM island flap (a-FAMMIF) for the reconstruction tongue defects after tumor resection...
May 15, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29770611/the-changing-aetiology-of-head-and-neck-squamous-cell-cancer-a-tale-of-three-cancers
#18
Steven J Thomas, Chris M Penfold, Andrea Waylen, Andrew R Ness
Head and neck cancers are the sixth most common cancers worldwide and an important cause of ill health.(1) Each year about 9000 cases are reported in the UK.(2) Survival is poor and despite advances in treatment, has not improved until recently.(3) The majority of head and neck cancers are squamous cell carcinomas, affecting the larynx, oropharynx and oral cavity. The aetiology is changing and this has implications for prevention and treatment. Twenty years ago, tobacco and alcohol consumption were considered to be the established risk factors and it was estimated that these risk factors accounted for about 75% of cases...
May 16, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29770536/combination-of-ifitm1-knockdown-and-radiotherapy-inhibits-the-growth-of-oral-cancer
#19
Jie Yang, Lei Li, Yan Xi, Ruimei Sun, Hu Wang, Yanxin Ren, Liufang Zhao, Xiaoli Wang, Xiaojiang Li
This research aimed to analyze the effect of IFITM1 on the radioresistance of oral neoplasm. IFITM1 emerged using multi-group heat map from GSE9716 analysis of GEO database as the relevant radioresistance gene. IFITM1 was screened by TCGA database before its expression was analyzed. IFITM1 expression was quantified by qRT-PCR and immunohistochemistry in 19 paired oral neoplasm cases. The effects of time and dose of radiation on IFITM1 expression level in CAL27 and TSCC1 cell lines was tested via qRT-PCR. Oral neoplasm cells were transfected with siRNA after radiotherapy to disturb IFITM1 expression...
May 16, 2018: Cancer Science
https://www.readbyqxmd.com/read/29770205/beginning-at-the-ends-telomeres-and-human-disease
#20
REVIEW
Sharon A Savage
Studies of rare and common illnesses have led to remarkable progress in the understanding of the role of telomeres (nucleoprotein complexes at chromosome ends essential for chromosomal integrity) in human disease. Telomere biology disorders encompass a growing spectrum of conditions caused by rare pathogenic germline variants in genes encoding essential aspects of telomere function. Dyskeratosis congenita, a disorder at the severe end of this spectrum, typically presents in childhood with the classic triad of abnormal skin pigmentation, nail dystrophy, and oral leukoplakia, accompanied by a very high risk of bone marrow failure, cancer, pulmonary fibrosis, and other medical problems...
2018: F1000Research
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