keyword
MENU ▼
Read by QxMD icon Read
search

mercaptopurine

keyword
https://www.readbyqxmd.com/read/27920553/meta-analysis-of-the-impact-of-thioprine-s-methyltransferase-polymorphisms-on-the-tolerable-6-mercaptopurine-dose-considering-initial-dose-and-ethnic-difference
#1
Myeong Gyu Kim, Minoh Ko, In-Wha Kim, Jung Mi Oh
A meta-analysis was conducted to decide whether to reduce an initial 6-mercaptopurine (6-MP) dose in TPMT heterozygote in the case of an initial 6-MP dose of <75 mg/m(2)/d and to compare the tolerable 6-MP dose among different ethnic groups. The study was undertaken according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The differences in mean values of the tolerable 6-MP dose were calculated by using Comprehensive Meta-Analysis version 3. The results of the meta-analysis indicated that the tolerable 6-MP dose was significantly lower in the TPMT heterozygote group (difference in mean values =11...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27920397/optimizing-combination-therapy-for-acute-lymphoblastic-leukemia-using-a-phenotypic-personalized-medicine-digital-health-platform-retrospective-optimization-individualizes-patient-regimens-to-maximize-efficacy-and-safety
#2
Dong-Keun Lee, Vivian Y Chang, Theodore Kee, Chih-Ming Ho, Dean Ho
Acute lymphoblastic leukemia (ALL) is a blood cancer that is characterized by the overproduction of lymphoblasts in the bone marrow. Treatment for pediatric ALL typically uses combination chemotherapy in phases, including a prolonged maintenance phase with oral methotrexate and 6-mercaptopurine, which often requires dose adjustment to balance side effects and efficacy. However, a major challenge confronting combination therapy for virtually every disease indication is the inability to pinpoint drug doses that are optimized for each patient, and the ability to adaptively and continuously optimize these doses to address comorbidities and other patient-specific physiological changes...
December 5, 2016: Journal of Laboratory Automation
https://www.readbyqxmd.com/read/27916002/long-term-effect-of-stents-eluting-6-mercaptopurine-in-porcine-coronary-arteries
#3
Matthijs S Ruiter, Albert Doornbos, Vivian de Waard, Robbert J de Winter, Nico J M Attevelt, Rob Steendam, Carlie J M de Vries
BACKGROUND: Drug-eluting stents (DES) have dramatically reduced restenosis rates compared to bare metal stents and are widely used in coronary artery angioplasty. The anti-proliferative nature of the drugs reduces smooth muscle cell (SMC) proliferation effectively, but unfortunately also negatively affects endothelialization of stent struts, necessitating prolonged dual anti-platelet therapy. Cell-type specific therapy may prevent this complication, giving rise to safer stents that do not require additional medication...
December 5, 2016: Journal of Negative Results in Biomedicine
https://www.readbyqxmd.com/read/27895780/curcumin-potentiates-the-effect-of-chemotherapy-against-acute-lymphoblastic-leukemia-cells-via-downregulation-of-nf-%C3%AE%C2%BAb
#4
Helia Judith Pimentel-Gutiérrez, Lucina Bobadilla-Morales, César Cenobio Barba-Barba, Citlalli Ortega-De-La-Torre, Fernando Antonio Sánchez-Zubieta, Jorge Román Corona-Rivera, Betsy Annel González-Quezada, Juan S Armendáriz-Borunda, Rocío Silva-Cruz, Alfredo Corona-Rivera
Acute lymphoblastic leukemia (ALL) accounts for 30% of all pediatric cancers. Currently available treatments exhibit toxicity and certain patients may develop resistance. Thus, less toxic and chemoresistance-reversal agents are required. In the present study, the potential effect of curcumin, a component of Curcuma longa, as a pharmacological co-adjuvant of several chemotherapeutic agents against ALL, including prednisone, 6-mercaptopurine, dexamethasone, cyclophosphamide, l-asparaginase, vincristine, daunorubicin, doxorubicin, methotrexate and cytarabine, was investigated in the REH ALL cell line cultures treated in combination with chemotherapeutic agents and curcumin...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27882164/inflammatory-bowel-disease-in-chinese-children-a-retrospective-analysis-of-49-cases
#5
Ying Zhou, Ying Huang
To present study reports the clinical characteristics, diagnosis and management of pediatric patients with inflammatory bowel disease (IBD) in China. Clinical records of 49 pediatric patients with IBD at Fudan University Children's Hospital (Shanghai, China) between July 2001 and May 2012 were reviewed. Of 49 patients (30 males and 19 females), 8 patients had ulcerative colitis (UC) and 41 patients had Crohn's disease (CD). The mean age was 10.4 years in patients with UC and 10.1 years in patients with CD. The percentages of patients with UC with abdominal pain, diarrhea or rectal bleeding were 62...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27873105/newborn-screening-for-severe-primary-immunodeficiency-diseases-in-sweden-a-2-year-pilot-trec-and-krec-screening-study
#6
Michela Barbaro, Annika Ohlsson, Stephan Borte, Susanne Jonsson, Rolf H Zetterström, Jovanka King, Jacek Winiarski, Ulrika von Döbeln, Lennart Hammarström
Newborn screening for severe primary immunodeficiencies (PID), characterized by T and/or B cell lymphopenia, was carried out in a pilot program in the Stockholm County, Sweden, over a 2-year period, encompassing 58,834 children. T cell receptor excision circles (TREC) and kappa-deleting recombination excision circles (KREC) were measured simultaneously using a quantitative PCR-based method on DNA extracted from dried blood spots (DBS), with beta-actin serving as a quality control for DNA quantity. Diagnostic cutoff levels enabling identification of newborns with milder and reversible T and/or B cell lymphopenia were also evaluated...
November 21, 2016: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/27867685/how-i-treat-my-inflammatory-bowel-disease-patients-with-thiopurines
#7
REVIEW
Berrie Meijer, Chris Jj Mulder, Adriaan A van Bodegraven, Nanne K H de Boer
Thiopurines are essential drugs to maintain remission in patients with inflammatory bowel disease (IBD). Thiopurines used in IBD are azathioprine (2.0-2.5 mg/kg), mercaptopurine (1.0-1.5 mg/kg) and thioguanine (0.2-0.3 mg/kg). However, mainly due to numerous adverse events associated with thiopurine use, almost 50% of the patients have to discontinue conventional thiopurine treatment. Extensive monitoring and the application of several treatment strategies, such as split-dose administration, co-administration with allopurinol or dose reduction/increase, may increase the chance of successful therapy...
November 6, 2016: World Journal of Gastrointestinal Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/27833392/efficacy-of-thioguanine-treatment-in-inflammatory-bowel-disease-a-systematic-review
#8
Berrie Meijer, Chris Jj Mulder, Godefridus J Peters, Adriaan A van Bodegraven, Nanne Kh de Boer
AIM: To critically assess the available literature regarding the efficacy of thioguanine treatment in inflammatory bowel disease (IBD) patients, irrespective of the (hepato-) toxicity profile. METHODS: A systematic literature search of the MEDLINE database using PubMed was performed using the keywords "thioguanine", "6-TG", "thioguanine", "inflammatory bowel disease", "IBD", "Crohn's disease", "Ulcerative colitis" and "effectiveness" in order to identify relevant articles published in English starting from 2000...
October 28, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27809554/mercaptopurine-and-inflammatory-bowel-disease-the-other-thiopurine
#9
Fernando Bermejo San José, Alicia Algaba, Sergio López Durán, Iván Guerra, Marta Aicart, María Hernández-Tejero, Elena Garrido, María de Lucas, Daniel Bonillo, Antonio López Sanromán
BACKGROUND: Data about use and effectiveness of mercaptopurine in inflammatory bowel disease are relatively limited. AIMS: To assess the possible therapeutic indications, efficacy and safety of mercaptopurine as an alternative to azathioprine in inflammatory bowel disease. METHODS: Retrospective observational study in patients treated with mercaptopurine in a total cohort of 1,574 patients with inflammatory bowel disease. RESULTS: One hundred and fifty-two patients received mercaptopurine, 15...
November 4, 2016: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/27803465/improvement-in-the-anticancer-activity-of-6-mercaptopurine-via-combination-with-bismuth-iii
#10
Yang Yang, Shuang Zhou, Ruizhuo Ouyang, Yaoqin Yang, Huihong Tao, Kai Feng, Xiaoshen Zhang, Fei Xiong, Ning Guo, Tianyu Zong, Penghui Cao, Yuhao Li, Yuqing Miao
6-Mercaptopurine (6-MP) is a clinically important antitumor drug and its commercially available form is provided as monohydrate, belonging to biopharmaceuticals classification system (BCS) class II category. The combination of bismuth(III) (Bi(III)) with 6-MP was proved to significantly improve the anticancer activity of 6-MP, leading to the discovery of a new amorphous complex ([Bi(MP)3(NO3)2]NO3). The prepared [Bi(MP)3(NO3)2]NO3 was characterized by the matrix assisted laser desorption-ionization time-of-flight (MALDI-TOF)-MS, etc...
2016: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27802917/development-and-validation-of-lc-ms-ms-assay-for-the-simultaneous-determination-of-methotrexate-6-mercaptopurine-and-its-active-metabolite-6-thioguanine-in-plasma-of-children-with-acute-lymphoblastic-leukemia-correlation-with-genetic-polymorphism
#11
Medhat A Al-Ghobashy, Said A Hassan, Doaa H Abdelaziz, Noha M Elhosseiny, Nirmeen A Sabry, Ahmed S Attia, Manal H El-Sayed
Individualized therapy is a recent approach aiming to specify dosage regimen for each patient according to its genetic state. Cancer chemotherapy requires continuous monitoring of the plasma concentration levels of active forms of cytotoxic drugs and subsequent dose adjustment. In order to attain optimum therapeutic efficacy, correlation to pharmacogenetics data is crucial. In this study, a specific, accurate and sensitive liquid chromatography tandem mass spectrometry (LC-MS/MS) has been developed for determination of methotrexate (MTX), 6-mercaptopurine (MP) and its metabolite 6-thioguanine nucleotide (TG) in human plasma...
December 1, 2016: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/27800472/shorter-maintenance-therapy-in-childhood-acute-lymphoblastic-leukemia-the-experience-of-the-prospective-randomized-brazilian-gbtli-all-93-protocol
#12
Silvia R Brandalise, Marcos B Viana, Vitória R P Pinheiro, Núbia Mendonça, Luiz F Lopes, Waldir V Pereira, Maria L M Lee, Elitânia M Pontes, Gláucia P Zouain-Figueiredo, Alita C A C Azevedo, Nilma Pimentel, Maria Z Fernandes, Hilda M Oliveira, Sônia R Vianna, Carlos A Scrideli, Fernando A Werneck, Maria N Álvares, Érica Boldrini, Sandra R Loggetto, Paula Bruniera, Maria J Mastellaro, Eni M Souza, Rogério A Araújo, Flávia Bandeira, Doralice M Tan, Nelson A Carvalho, Maria A S Salgado
AIM: Maintenance therapy is an important phase of the childhood ALL treatment, requiring 2-year long therapy adherence of the patients and families. Weekly methotrexate with daily 6-mercaptopurine (6MP) constitutes the backbone of maintenance therapy. Reduction in the maintenance therapy could overweight problems related with poverty of children with ALL living in limited-income countries (LIC). OBJECTIVE: To compare, prospectively, the EFS rates of children with ALL treated according to two maintenance regimens: 18 vs...
2016: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/27783843/azathioprine-or-6-mercaptopurine-for-induction-of-remission-in-crohn-s-disease
#13
REVIEW
Nilesh Chande, Cassandra M Townsend, Claire E Parker, John K MacDonald
BACKGROUND: The results from controlled clinical trials investigating the efficacy of azathioprine and 6-mercaptopurine for the treatment of active Crohn's disease have been conflicting and controversial. An updated meta-analysis was performed to assess the effectiveness of these drugs for the induction of remission in active Crohn's disease. OBJECTIVES: The primary objective was to determine the efficacy and safety of azathioprine and 6-mercaptopurine for induction of remission in active Crohn's disease...
October 26, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27778363/review-article-novel-methods-for-the-treatment-of-non-alcoholic-steatohepatitis-targeting-the-gut-immune-system-to-decrease-the-systemic-inflammatory-response-without-immune-suppression
#14
REVIEW
Y Ilan
BACKGROUND: The systemic immune system plays a role in inflammation and fibrogenesis associated with non-alcoholic steatohepatitis (NASH) and has become a potential target for drug development. In particular, the gut immune system has been suggested as a means for generating signals that can target the systemic immune system. AIM: To describe seven novel methods being developed for the treatment of NASH that target the gut immune system for alleviation of the systemic inflammatory response, including oral administration of fatty-liver-derived proteins, anti-CD3 antibodies, tumour necrosis factor fusion protein, anti-lipopolysaccharide antibodies, glucosylceramide, delayed-release mercaptopurine, and soy-derived extracts...
December 2016: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27760078/experts-opinion-on-the-practical-use-of-azathioprine-and-6-mercaptopurine-in-inflammatory-bowel-disease
#15
Christian Mottet, Alain M Schoepfer, Pascal Juillerat, Jacques Cosnes, Florian Froehlich, Vera Kessler-Brondolo, Frank Seibold, Gerhard Rogler, Stephan R Vavricka, Pierre Michetti
The relevance of azathioprine and 6-mercaptopurine therapy in inflammatory bowel disease, Crohn's disease, and ulcerative colitis, has been challenged in recent publications. In this article, a panel of experts gives advice, based on the relevant literature, on indications and practical use of azathioprine/6-mercaptopurine, prevention, and management of drug adverse reactions and special situations such as vaccination, pregnancy, and lactation.
November 2016: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/27714158/the-role-of-the-crystalline-face-in-the-ordering-of-6-mercaptopurine-self-assembled-monolayers-on-gold
#16
Flavia Lobo Maza, Doris Grumelli, Pilar Carro, Carolina Vericat, Klaus Kern, Roberto C Salvarezza
Well-ordered molecular films play an important role in nanotechnology, from device fabrication to surface patterning. Self-assembled monolayers (SAMs) of 6-mercaptopurine (6MP) on the Au(100)-(1 × 1) and Au(111)-(1 × 1) have been used to understand the interplay of molecule-substrate interactions for heterocyclic thiols capable of binding to the surface by two anchors, which spontaneously form a highly disordered film on Au(111). Our results reveal that for the same surface coverage the simple change of the substrate from Au(111)-(1 × 1) to Au(100)-(1 × 1) eliminates molecular disorder and yields well-ordered SAMs...
October 6, 2016: Nanoscale
https://www.readbyqxmd.com/read/27689330/interconnections-between-apoptotic-and-autophagic-pathways-during-thiopurine-induced-toxicity-in-cancer-cells-the-role-of-reactive-oxygen-species
#17
Wiem Chaabane, Malin Lindqvist Appell
Thiopurines (azathioprine, 6-mercaptopurine and 6-thioguanine) are a class of genotoxic drugs extensively used in the treatment of various illnesses including leukemia. Their underlying molecular mechanism of action involves the activation of apoptosis and autophagy but remains widely unclear. Here we present evidence that autophagy induction by thiopurines is a survival mechanism that antagonizes apoptosis and is involved in degrading damaged mitochondria through mitophagy. On the other hand, apoptosis is the main cell death mechanism by thiopurines as its inhibition prohibited cell death...
September 28, 2016: Oncotarget
https://www.readbyqxmd.com/read/27668103/immune-thrombocytopenia-in-a-child-with-t-cell-lymphoblastic-lymphoma
#18
Kayo Tokeji, Sachi Sakaguchi, Tomoko Kurimoto, Junya Fujimura, Toshiaki Shimizu
We describe the case of a 13-year-old boy who presented with persistent thrombocytopenia during maintenance chemotherapy with mercaptopurine and methotrexate for T cell lymphoblastic lymphoma. He was diagnosed with immune thrombocytopenia (ITP) after thorough investigations for the relapse of lymphoma and was successfully treated with immunoglobulin and steroids. ITP is known to be associated with chronic lymphocytic leukemia, Hodgkin lymphoma, and various types of non-Hodgkin lymphoma but rarely with T cell non-Hodgkin lymphoma or in children...
2016: Case Reports in Hematology
https://www.readbyqxmd.com/read/27648552/azathioprine-and-6-mercaptopurine-induced-liver-injury-clinical-features-and-outcomes
#19
Einar S Björnsson, Jiezhun Gu, David E Kleiner, Naga Chalasani, Paul H Hayashi, Jay H Hoofnagle
OBJECTIVE: The objective of the study was to define the clinical, biochemical, and histologic features of liver injury from thiopurines. BACKGROUND: Azathioprine (Aza) and 6-mercaptopurine (6-MP) can cause liver injury, but no large series exist. METHODS: Clinical and laboratory data and 6-month outcomes of patients with thiopurine hepatotoxicity from the Drug-Induced Liver Injury Network Prospective Study were analyzed. RESULTS: Twenty-two patients were identified, 12 due to Aza and 10 due to 6-MP, with a median age of 55 years; the majority were female (68%)...
June 14, 2016: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/27641154/genotypes-affecting-the-pharmacokinetics-of-anticancer-drugs
#20
Daphne Bertholee, Jan Gerard Maring, André B P van Kuilenburg
Cancer treatment is becoming more and more individually based as a result of the large inter-individual differences that exist in treatment outcome and toxicity when patients are treated using population-based drug doses. Polymorphisms in genes encoding drug-metabolizing enzymes and transporters can significantly influence uptake, metabolism, and elimination of anticancer drugs. As a result, the altered pharmacokinetics can greatly influence drug efficacy and toxicity. Pharmacogenetic screening and/or drug-specific phenotyping of cancer patients eligible for treatment with chemotherapeutic drugs, prior to the start of anticancer treatment, can identify patients with tumors that are likely to be responsive or resistant to the proposed drugs...
September 19, 2016: Clinical Pharmacokinetics
keyword
keyword
115957
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"