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https://www.readbyqxmd.com/read/29031050/paraquat-affects-mitochondrial-bioenergetics-dopamine-system-expression-and-locomotor-activity-in-zebrafish-danio-rerio
#1
Xiao H Wang, Christopher L Souders, Yuan H Zhao, Christopher J Martyniuk
The dipyridyl herbicide paraquat induces oxidative stress in cells and is implicated in adult neurodegenerative diseases. However, less is known about paraquat toxicity in early stages of vertebrate development. To address this gap, zebrafish (Danio rerio) embryos were exposed to 1, 10 and 100 μM paraquat for 96 h. Paraquat did not induce significant mortality nor deformity in embryos and larvae, but it did accelerate time to hatch. To evaluate whether mitochondrial respiration was related to earlier hatch times, oxygen consumption rate was measured in whole embryos...
October 6, 2017: Chemosphere
https://www.readbyqxmd.com/read/29031040/-treatment-refusal-in-pediatric-oncology
#2
A Špótová, K Husáková, A Hrašková, M Mikesková, J Puškáčová, S Hederová, M Jamárik, E Rabenseifertová, Z Jalovecká, A Kolenová, Z Šubová
BACKGROUND: Pediatric oncologists are often faced with situations in which parents or guardians refuse recommended treatment for curable childhood cancer. Deciding how to proceed in such situations is an ethical dilemma. The aim of this article is to consider optimal approaches when parents are strongly against oncological treatment, potentially compromising their childrens rights for health care and to the chance for cure. CASES: In this paper, we report two cases of treatment refusal from our department and the impact of such decisions on the children themselves...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/29029365/eighteen-month-lamivudine-prophylaxis-on-preventing-occult-hepatitis-b-virus-hbv-infection-reactivation-in-patients-with-hematologic-malignancies-receiving-immunosuppression-therapy
#3
Aldo Marrone, Nicolina Capoluongo, Chiara D'Amore, Mariantonietta Pisaturo, Mariarosaria Esposito, Salvatore Guastafierro, Isabella Siniscalchi, Margherita Macera, Adriana Boemio, Lorenzo Onorato, Luca Rinaldi, Carmine Minichini, Luigi Elio Adinolfi, Evangelista Sagnelli, Lucia Mastrullo, Nicola Coppola
This study evaluated the long-term efficacy and safety of an 18-month lamivudine prophylaxis in 68 HBsAg-negative/anti-HBc-positive patients with onco-hematological disease. All 68 consecutive HBsAg-negative/anti-HBc-positive patients with an onco-hematological disease and naïve for chemotherapy observed from April 2008 to December 2012 at two Hematology Units in Naples were treated with lamivudine for 18 months after stopping chemotherapy and monitored for HBsAg at months 1 and 3 during chemotherapy and then every three months after its discontinuation...
October 13, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/29028854/clinical-insights-and-emerging-strategies-in-managing-cutaneous-t-cell-lymphoma
#4
Christina C Patrone, Larisa J Geskin
<p>Mycosis Fungoides and Sézary Syndrome, the two most common types of Cutaneous T-Cell Lymphoma (CTCL), present many management challenges for dermatologists. Here, we provide a comprehensive review of up-to-date literature, guidelines, and expert clinical insights. We highlight the updates in the World Health Organization Classification of Cutaneous Lymphomas; we summarize the epidemiology, including a recently observed stabilization of increasing incidence of CTCL in the past decade and increased incidence in males, blacks, and veterans; we also provide the most recent updates on prognostic factors for CTCL...
May 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29027954/marine-sponge-natural-products-with-anticancer-potential-an-updated-review
#5
REVIEW
Cinzia Calcabrini, Elena Catanzaro, Anupam Bishayee, Eleonora Turrini, Carmela Fimognari
Despite the huge investment into research and the significant effort and advances made in the search for new anticancer drugs in recent decades, cancer cure and treatment continue to be a formidable challenge. Many sources, including plants, animals, and minerals, have been explored in the oncological field because of the possibility of identifying novel molecular therapeutics. Marine sponges are a prolific source of secondary metabolites, a number of which showed intriguing tumor chemopreventive and chemotherapeutic properties...
October 13, 2017: Marine Drugs
https://www.readbyqxmd.com/read/29027939/nicotine-component-of-cigarette-smoke-extract-cse-decreases-the-cytotoxicity-of-cse-in-beas-2b-cells-stably-expressing-human-cytochrome-p450-2a13
#6
Minghui Ji, Yudong Zhang, Na Li, Chao Wang, Rong Xia, Zhan Zhang, Shou-Lin Wang
Cytochrome P450 2A13 (CYP2A13), an extrahepatic enzyme mainly expressed in the human respiratory system, has been reported to mediate the metabolism and toxicity of cigarette smoke. We previously found that nicotine inhibited 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) metabolism by CYP2A13, but its influence on other components of cigarette smoke remains unclear. The nicotine component of cigarette smoke extract (CSE) was separated, purified, and identified using high-performance liquid chromatography (HPLC) and ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS), splitting CSE into a nicotine section (CSE-N) and nicotine-free section (CSE-O)...
October 13, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29027832/clinical-evaluation-of-p-glycoprotein-inhibition-by-venetoclax-a-drug-interaction-study-with-digoxin
#7
Manoj S Chiney, Rajeev M Menon, Orlando F Bueno, Bo Tong, Ahmed Hamed Salem
1. Venetoclax is a novel, small molecule B-cell lymphoma-2 (BCL-2) inhibitor that has demonstrated clinical efficacy in a variety of haematological malignancies. Since venetoclax is an inhibitor of P glycoprotein (P-gp) transporter, a study was conducted in healthy, female volunteers to evaluate the effect of venetoclax on the pharmacokinetics of digoxin, a P-gp probe substrate. 2. Volunteers received a single oral dose of digoxin (0.5 mg) with or without a single oral dose of venetoclax (100  mg). Serial blood samples were obtained for pharmacokinetic assessments of digoxin and venetoclax and serial urine samples were obtained for measurement of digoxin concentrations...
October 13, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/29027822/mucosa-associated-lymphoid-tissue-lymphoma-with-intraocular-and-orbital-involvement-case-presentation-and-review-of-the-literature
#8
Kenn Freedman, Sudhir Shenoy
Primary ocular lymphomas are typically confined to either the eye or the orbit. Rarely, in immune-competent patients, lymphomas affect both the eye and the orbit simultaneously. Mucosa-associated lymphoid tissue (MALT) lymphomas are the most common ocular lymphomas. They usually present primarily in the orbit but sometimes can present primarily in intraocular tissue. MALT lymphomas that occur initially in the uvea can sometimes spread to the adjacent orbit. We report a case of progressively enlarging MALT lymphoma in a 62-year-old immune-competent patient causing a severe mass effect in the orbit and simultaneously presenting with intraocular involvement...
October 13, 2017: Orbit
https://www.readbyqxmd.com/read/29027514/-a-male-with-intra-abdominal-nodules-on-a-ct-scan
#9
F G M Smeets, F P J Peters
A 38-year-old male with a history of laparoscopic cholecystectomy and successfully treated Hodgkin lymphoma had a follow-up CT-scan which showed four nodular densities behind the bladder. Additional investigations demonstrated spilled gallstones instead of a relapse of Hodgkin lymphoma. Spillage of gallstones is relatively common and may mimic malignant diseases.
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/29027350/liposome-encapsulated-chemotherapy-current-evidence-for-its-use-in-companion-animals
#10
REVIEW
B Børresen, A E Hansen, A Kjaer, T L Andresen, A T Kristensen
Cytotoxic drugs encapsulated into liposomes were originally designed to increase the anticancer response, while minimizing off-target adverse effects. The first liposomal chemotherapeutic drug was approved for use in humans more than 20 years ago, and the first publication regarding its use in a canine cancer patient was published shortly thereafter. Regardless, no general application for liposomal cytotoxic drugs has been established in veterinary oncology till now. Due to the popularity of canines as experimental models for pharmacokinetic analyses and toxicity studies, multiple publications exist describing various liposomal drugs in healthy dogs...
October 13, 2017: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/29027306/fenton-reaction-induced-renal-carcinogenesis-in-mutyh-deficient-mice-exhibits-less-chromosomal-aberrations-than-the-rat-model
#11
Guang Hua Li, Shinya Akatsuka, Shan Hwu Chew, Li Jiang, Takahiro Nishiyama, Akihiko Sakamoto, Takashi Takahashi, Mitsuru Futakuchi, Hiromu Suzuki, Kunihiko Sakumi, Yusaku Nakabeppu, Shinya Toyokuni
Oxidative stress including iron excess has been associated with carcinogenesis. The level of 8-oxoguanine, a major oxidatively modified base in DNA, is maintained very low by three distinct enzymes, encoded by OGG1, MUTYH and MTH1. Germline biallelic inactivation of MUTYH represents a familial cancer syndrome called MUTYH-associated polyposis. Here, we used Mutyh-deficient mice to evaluate renal carcinogenesis induced by ferric nitrilotriacetate (Fe-NTA). Although the C57BL/6 background is cancer-resistant, a repeated intraperitoneal administration of Fe-NTA induced a high incidence of renal cell carcinoma (RCC; 26...
October 13, 2017: Pathology International
https://www.readbyqxmd.com/read/29027214/development-of-an-alternative-zebrafish-model-for-drug-induced-intestinal-toxicity
#12
Bokyeong Ryu, C-Yoon Kim, Hanseul Oh, Ukjin Kim, Jin Kim, Cho-Rok Jung, Byoung-Hee Lee, Seungki Lee, Seo-Na Chang, Ji Min Lee, Hyung-Min Chung, Jae-Hak Park
An evaluation of intestinal toxicity is important because the mucosal lining of the gastrointestinal tract is the first barrier for oral xenobiotics. Until now, a rat model has been recommended as the standard intestinal toxicity model and the Caco-2 cell line, originated from a human colon adenocarcinoma, has been used as an alternative to this model, but there are limitations regarding cost-effectiveness and the need for mimicry of the human system. In this study, we investigated whether zebrafish could be a valid alternative to rats and Caco-2 cells as an intestinal toxicity model...
October 13, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/29027209/heterogeneous-distribution-of-alectinib-in-neuroblastoma-xenografts-revealed-by-matrix-assisted-laser-desorption-ionisation-mass-spectrometry-imaging-a-pilot-study
#13
Shoraku Ryu, Mitsuhiro Hayashi, Hiroaki Aikawa, Isamu Okamoto, Yasuhiro Fujiwara, Akinobu Hamada
BACKGROUND AND PURPOSE: The penetration of the anaplastic lymphoma kinase (ALK) inhibitor alectinib in neuroblastomas and the relationship between alectinib and ALK expression are unknown. The aim of this study was to perform a quantitative investigation of the inter- and intra-tumoural distribution of alectinib in different neuroblastoma xenograft models using matrix-assisted laser desorption ionisation mass spectrometry imaging (MALDI-MSI). EXPERIMENTAL APPROACH: The distribution of alectinib in NB1 (ALK amplification) and SK-N-FI (ALK wild-type) xenograft tissues was analysed using MALDI-MSI...
October 13, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29027206/low-grade-gastrointestinal-lymphoma-in-dogs-20-cases-2010-to-2016
#14
J Lane, J Price, A Moore, J R S Dandrieux, C Clifford, K Curran, K Choy, C Cannon
OBJECTIVES: To report the clinical presentation, treatment and prognosis of dogs with low-grade gastrointestinal lymphoma. MATERIALS AND METHODS: Cases were solicited from the American College of Veterinary Internal Medicine Oncology Diplomate listserv. Medical records of dogs with low-grade gastrointestinal lymphoma diagnosed via a combination of histology and immunohistochemistry with or without analysis of polymerase chain reaction for antigen receptor rearrangement were included...
October 13, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/29027106/fas-and-mitochondria-mediated-signaling-pathway-involved-in-osteoblast-apoptosis-induced-by-alcl3
#15
Feibo Xu, Limin Ren, Miao Song, Bing Shao, Yanfei Han, Zheng Cao, Yanfei Li
Aluminum (Al) is known to induce apoptosis of osteoblasts (OBs). However, the mechanism is not yet established. To investigate the apoptotic mechanism of OBs induced by aluminum trichloride (AlCl3), the primary OBs from the craniums of fetal Wistar rats were exposed to 0 mg/mL (control group, CG), 0.06 mg/mL (low-dose group, LG), 0.12 mg/mL (mid-dose group, MG), and 0.24 mg/mL (high-dose group, HG) AlCl3 for 24 h, respectively. We observed that AlCl3 induced OB apoptosis with the appearance of apoptotic morphology and increase of apoptosis rate...
October 12, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/29027009/lipid-lowering-agent-triggered-dermatomyositis-and-polymyositis-a-case-series-and-literature-review
#16
REVIEW
Isabela Bruna Pires Borges, Marilda Guimarães Silva, Rafael Giovane Misse, Samuel Katsuyuki Shinjo
Lipid-lowering agent-triggered dermatomyositis (DM) or polymyositis (PM) is a rare event. Therefore, the aim of the present study was to describe a series of such cases. A retrospective cohort study of 5 DM and 4 PM cases triggered by prior exposure to lipid-lowering agents between 2001 and 2017 was carried out. All patients, except for two cases, had muscle biopsy compatible with inflammatory myopathy and no serum autoantibodies positive for anti-SRP or anti-HMGCoAR. Median age of the patients at time of diagnosis was 68 years...
October 12, 2017: Rheumatology International
https://www.readbyqxmd.com/read/29027001/cancer-incidence-in-urban-rural-and-densely-populated-districts-close-to-core-cities-in-bavaria-germany
#17
M Radespiel-Tröger, K Geiss, D Twardella, W Maier, M Meyer
OBJECTIVE: An ecologic study on the level of districts was performed to evaluate the possible association between district type and risk of cancer in Bavaria, Southern Germany. METHODS: Cancer incidence data for the years 2003-2012 were obtained from the population-based cancer registry Bavaria according to sex and cancer site. Data on district type, socio-economic area deprivation, particulate matter exposure, tobacco consumption, and alcohol consumption were obtained from publicly available sources...
October 12, 2017: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/29026947/pet-guided-clinical-trials-in-hodgkin-lymphoma-to-agree-or-not-to-agree-that-is-the-reviewer-s-question
#18
EDITORIAL
A Gallamini, M Meignan
No abstract text is available yet for this article.
October 12, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29026712/therapy-related-acute-myeloid-leukemia-following-treatment-for-burkitt-s-lymphoma
#19
Seung-Shin Lee
No abstract text is available yet for this article.
September 2017: Chonnam Medical Journal
https://www.readbyqxmd.com/read/29026585/plantar-keratoderma-of-s%C3%A3-zary-syndrome
#20
Konstantinos C Fragkos
Sézary syndrome is an extremely rare form of cutaneous T-cell lymphoma. It presents suddenly and is associated with a poor prognosis. Clinical recognition is crucial for the diagnostic process and initiation of appropriate treatment. Plantar keratoderma is usually pathognomonic for Sézary syndrome and clinicians should be alerted to its presence.
October 2017: Clinical Case Reports
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