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Sulfasalazine

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https://www.readbyqxmd.com/read/29044942/highly-luminescent-nitrogen-doped-carbon-dots-for-simultaneous-determination-of-chlortetracycline-and-sulfasalazine
#1
Zhengwei Zhang, Jianqiu Chen, Yu Duan, Weixia Liu, Dan Li, Zhengyu Yan, Ke Yang
Here, we have presented a green and facile strategy to fabricate nitrogen-doped carbon dots (N-CDs) and their applications for determination of chlortetracycline (CTC) and sulfasalazine (SSZ). The fluorescent N-CDs, prepared by one-step hydrothermal reaction of citric acid and l-arginine, manifested numerous excellent features containing strong blue fluorescence, good water-solubility, narrow size distribution, and a high fluorescence quantum yield (QY) of 38.8%. Based on the fluorescence quenching effects, the as-synthesized N-CDs as a fluorescent nanosensor exhibited superior analytical performances for quantifying CTC and SSZ...
October 18, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/29038345/administering-xct-inhibitors-based-on-circadian-clock-improves-antitumor-effects
#2
Fumiyasu Okazaki, Naoya Matsunaga, Kengo Hamamura, Kayoko Suzuki, Takaharu Nakao, Hiroyuki Okazaki, Masahiko Kutsukake, Shiro Fukumori, Yasuhiro Tsuji, Hideto To
Clock genes encoding transcription factors that regulate circadian rhythms may inform chrono-modulated chemotherapy, where time-dependent dose alterations might affect drug efficacy and reduce side effects. For example, inhibiting the essential cystine transporter xCT with sulfasalazine induces growth arrest in cancer cells. Although the anticancer effects of sulfasalazine have been studied extensively, its effects on transcriptional control of xCT expression have not been studied. Here we show that sulfasalazine administration during the period of increased xCT expression improves its anticancer effects, and that the Clock gene itself induces xCT expression and regulates its circadian rhythm...
October 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/29033678/quantitative-metabolic-volumetric-product-on-18-fluorine-2fluoro-2-deoxy-d-glucose-positron-emission-tomography-computed-tomography-in-assessing-treatment-response-to-disease-modifying-antirheumatic-drugs-in-rheumatoid-arthritis-multiparametric-analysis-integrating
#3
Nandigam Santosh Kumar, Yogesh Shejul, Ramesh Asopa, Sandip Basu
The purpose of this study was to assess the role of fluoro-2-deoxy-D-glucose-positron emission tomography/computed tomography (FDG-PET/CT) in the evaluation of treatment response evaluation to disease-modifying antirheumatic drug (DMARD) therapy in patients of rheumatoid arthritis (RA). A total of ten patients with proven diagnosis of RA as per the 2010 American College of Rheumatology/European League against Rheumatism (EULAR) criteria were prospectively evaluated. All patients underwent clinical and biochemical evaluation and a baseline FDG-PET/CT with assessment of maximum standardized uptake value and metabolic volumetric product (MVP) values...
October 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29018816/comparative-evaluation-between-sulfasalazine-alone-and-in-combination-with-herbal-medicine-on-dss-induced-ulcerative-colitis-mice
#4
Mi-Rae Shin, Kyeong Jo Kim, Soo Hyun Kim, Su Ji Kim, Bu-Il Seo, Hyo-Jin An, Seong-Soo Roh
The present study aimed to investigate the comparative evaluation of pharmacological efficacy between sulfasalazine alone and sulfasalazine in combination with herbal medicine on dextran sodium sulfate- (DSS-) induced UC in mice. Balb/c mice received 5% DSS in drinking water for 7 days to induce colitis. Animals were divided into five groups (n = 9): Group I (normal group), Group II (DSS control group), Group III (DSS + sulfasalazine (30 mg/kg)), Group IV (DSS + sulfasalazine (60 mg/kg)), and Group V (DSS + sulfasalazine (30 mg/kg) + Cinnamomi Cortex and Bupleuri Radix mixture (30 mg/kg) (SCB))...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28980896/a-case-of-refractory-intestinal-beh%C3%A3-et-s-disease-treated-with-tocilizumab-a-humanised-anti-interleukin-6-receptor-antibody
#5
Jiali Chen, Shi Chen, Jing He
We describe a young female patient who had refractory intestinal Behçet's disease that responded to tocilizumab, a humanised anti-interleukin-6 receptor antibody. The patient had suffered from long disease activity courses and was treated with multiple medications, and the disease became refractory when immunosuppressants (e.g., thalidomide, sulfasalazine and azathioprine) were limited for poor remission, methylprednisolone pulse therapy, cyclophosphamide, and biological agents (e.g., adalimumab or infliximab) were restricted due to side effects after administration...
September 21, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28978047/restoring-microenvironmental-redox-and-ph-homeostasis-inhibits-neoplastic-cell-growth-and-migration-therapeutic-efficacy-of-esomeprazole-plus-sulfasalazine-on-3-mca-induced-sarcoma
#6
Enrica Balza, Patrizia Castellani, Paola Sanchez Moreno, Patrizia Piccioli, Iria Medraño-Fernandez, Claudia Semino, Anna Rubartelli
Neoplastic cells live in a stressful context and survive thanks to their ability to overcome stress. Thus, tumor cell responses to stress are potential therapeutic targets. We selected two such responses in melanoma and sarcoma cells: the xc- antioxidant system, that opposes oxidative stress, and surface v-ATPases that counteract the low pHi by extruding protons, and targeted them with the xc- blocker sulfasalazine and the proton pump inhibitor esomeprazole. Sulfasalazine inhibited the cystine/cysteine redox cycle and esomeprazole decreased pHi while increasing pHe in tumor cell lines...
September 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28970207/clinical-and-radiological-outcomes-of-5-year-drug-free-remission-steered-treatment-in-patients-with-early-arthritis-improved-study
#7
Gülşah Akdemir, Lotte Heimans, Sytske Anne Bergstra, Robbert J Goekoop, Maikel van Oosterhout, Johannes H L M van Groenendael, André J Peeters, Gerda M Steup-Beekman, Leroy R Lard, Peter B J de Sonnaville, Bernard A M Grillet, Tom W J Huizinga, Cornelia F Allaart
OBJECTIVES: To determine the 5-year outcomes of early remission induction therapy followed by targeted treatment aimed at drug-free remission (DFR) in patients with early arthritis. METHODS: In 12 hospitals, 610 patients with early (<2 years) rheumatoid arthritis (RA) or undifferentiated arthritis (UA) started on methotrexate (MTX) 25 mg/week and prednisone (60 mg/day tapered to 7.5 mg/day). Patients not in early remission (Disease Activity Score <1...
September 28, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28956014/development-of-a-primary-microglia-screening-assay-and-its-use-to-characterize-inhibition-of-system-xc-by-erastin-and-its-analogs
#8
Mariana Figuera-Losada, Ajit G Thomas, Marigo Stathis, Brent R Stockwell, Camilo Rojas, Barbara S Slusher
The inflammatory response in the central nervous system involves activated microglia. Under normal conditions they remove damaged neurons by phagocytosis. On the other hand, neurodegenerative diseases are thought to involve chronic microglia activation resulting in release of excess glutamate, proinflammatory cytokines and reactive oxygen species, leading to neuronal death. System xC(-) cystine/glutamate antiporter (SXC), a sodium independent heterodimeric transporter found in microglia and astrocytes in the CNS, imports cystine into the cell and exports glutamate...
March 2017: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/28952204/disease-activity-trajectories-in-early-rheumatoid-arthritis-following-intensive-dmard-therapy-over-3-years-association-with-persistence-to-therapy
#9
Nasir Wabe, Jessica Wojciechowski, Mihir D Wechalekar, Leslie G Cleland, Leah McWilliams, Anita Lee, Susanna Proudman, Michael D Wiese
OBJECTIVE: To identify the disease activity trajectories during intensive triple disease modifying anti-rheumatic drug (DMARD) therapy over 3 years in rheumatoid arthritis (RA) patients and to evaluate the association with treatment persistence. METHODS: Disease Activity Score in 28 joints, baseline risk factors and medication usage were obtained from a longitudinal observational cohort of early RA patients, most of whom were treated with combination DMARD therapy consisting of methotrexate, sulfasalazine and hydroxychloroquine...
September 26, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28951049/an-easy-and-fast-adenosine-5-diphosphate-quantification-procedure-based-on-hydrophilic-interaction-liquid-chromatography-high-resolution-tandem-mass-spectrometry-for-determination-of-the-in-vitro-adenosine-5-triphosphatase-activity-of-the-human-breast-cancer
#10
Lea Wagmann, Hans H Maurer, Markus R Meyer
Interactions with the human breast cancer resistance protein (hBCRP) significantly influence the pharmacokinetic properties of a drug and can even lead to drug-drug interactions. As efflux pump from the ABC superfamily, hBCRP utilized energy gained by adenosine 5'-triphosphate (ATP) hydrolysis for the transmembrane movement of its substrates, while adenosine 5'-diphosphate (ADP) and inorganic phosphate were released. The ADP liberation can be used to detect interactions with the hBCRP ATPase. An ADP quantification method based on hydrophilic interaction liquid chromatography (HILIC) coupled to high resolution tandem mass spectrometry (HR-MS/MS) was developed and successfully validated in accordance to the criteria of the guideline on bioanalytical method validation by the European Medicines Agency...
September 18, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28948818/new-molecules-modulating-bone-metabolism-new-perspectives-in-the-treatment-of-osteoporosis
#11
I Zofkova, J Blahos
In this review the authors outline traditional antiresorptive pharmaceuticals, such as bisphosphonates, monoclonal antibodies against RANKL, SERMs, as well as a drug with an anabolic effect on the skeleton, parathormone. However, there is also a focus on non-traditional strategies used in therapy for osteolytic diseases. The newest antiosteoporotic pharmaceuticals increase osteoblast differentiation via BMP signaling (harmine), or stimulate osteogenic differentiation of mesenchymal stem cells through Wnt/beta-catenin (icarrin, isoflavonoid caviunin, or sulfasalazine)...
September 26, 2017: Physiological Research
https://www.readbyqxmd.com/read/28936203/modulation-of-gut-microbiome-composition-and-function-in-experimental-colitis-treated-with-sulfasalazine
#12
Haihui Zheng, Mingyi Chen, Yuan Li, Yuanyuan Wang, Lin Wei, Ziqiong Liao, Mengxia Wang, Fangli Ma, Qiongfeng Liao, Zhiyong Xie
Inflammatory bowel disease (IBD) results from alterations in intestinal flora and the immune system. Sulfasalazine (SASP) is a sulfa antimicrobial used to treat IBD in clinic for years. However, how SASP affects gut microbes and its potential functions remains unclear. To investigate the relationships of SASP, IBD, and gut microbiome, we used 2,4,6-trinitrobenzenesulfonic acid (TNBS) to induce experimental colitis in rats, and analyzed the microbiota in the fecal samples, which come from the control group (treated with ethanol + saline), the model group (treated with TNBS-ethanol + saline) and the SASP group (treated with TNBS-ethanol + SASP), with 16S gene sequencing and followed up a subset sample using shotgun sequencing...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28929335/convection-enhanced-delivery-of-sulfasalazine-prolongs-survival-in-a-glioma-stem-cell-brain-tumor-model
#13
Shinya Haryu, Ryuta Saito, Wenting Jia, Takuhiro Shoji, Yui Mano, Aya Sato, Masayuki Kanamori, Yukihiko Sonoda, Oltea Sampetrean, Hideyuki Saya, Teiji Tominaga
Expression of CD44 in glioma cells was previously correlated with tumor grade and is considered a stem cell marker. CD44 stabilizes the cystine-glutamate transporter (xCT) and inhibits apoptosis in cancer stem cells (CSCs). Recently it was found that Sulfasalazine (SSZ), an anti-inflammatory drug, acts as an inhibitor of xCT and therefore has potential as a targeted therapy for CSCs. In this study, we tested an efficacy of SSZ against glioma stem cell model developed in rats. As poor penetration of blood-brain barrier resulted in insufficient efficacy of systemic SSZ treatment, SSZ was delivered locally with convection-enhanced delivery (CED)...
September 19, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28927738/dmard-use-is-associated-with-a-higher-risk-of-dementia-in-patients-with-rheumatoid-arthritis-a-propensity-score-matched-case-control-study
#14
Ming-Hsien Chou, Jong-Yi Wang, Cheng-Li Lin, Wei-Sheng Chung
BACKGROUND: Patients with rheumatoid arthritis (RA) exhibit an increased risk of dementia. Disease-modifying antirheumatic drugs (DMARDs) are commonly used to slow RA progression, but studies investigating the relationship between DMARDs and dementia in patients with RA are lacking. We investigated the relationship between DMARDs and dementia in patients with RA. METHODS: Using the National Health Insurance Research Database, patients aged ≥20years, who were newly diagnosed with RA between 2000 and 2011 were identified...
November 1, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28923326/effects-of-sulphasalazine-in-cerebral-ischemia-reperfusion-injury-in-rat
#15
Cansel Cetin, Ahmet Melih Erdogan, Gungor Cagdas Dincel, Bulent Bakar, Ucler Kisa
BACKGROUND: Management of cerebral ischemia/reperfusion (I/R) injury is still difficult process today. AIMS OF THE STUDY: Aim of present study was to investigate therapeutic properties of sulfasalazine in cerebral transient I/R injury in rat. METHODS: Except Control group (n = 5), 20 Wistar albino rats were allocated for acute and chronic stage investigation of I/R injury, and temporary aneurysm clips were attempted to both internal carotid arteries for thirty min...
April 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/28913986/chronic-spontaneous-urticaria-pathogenesis-and-treatment-considerations
#16
REVIEW
Allen P Kaplan
The treatment of chronic spontaneous urticaria begins with antihistamines; however, the dose required typically exceeds that recommended for allergic rhinitis. Second-generation, relatively non-sedating H₁-receptor blockers are typically employed up to 4 times a day. First-generation antihistamines, such as hydroxyzine or diphenhydramine (Atarax or Benadryl), were employed similarly in the past. Should high-dose antihistamines fail to control symptoms (at least 50%), omalizumab at 300 mg/month is the next step...
November 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28906558/effects-of-rolapitant-administered-intravenously-or-orally-on-the-pharmacokinetics-of-digoxin-p-glycoprotein-substrate-and-sulfasalazine-breast-cancer-resistance-protein-substrate-in-healthy-volunteers
#17
Xiaodong Wang, Zhi-Yi Zhang, Sujata Arora, Lorraine Hughes, Jing Wang, Daniel Powers, Jennifer Christensen, Sharon Lu, Vikram Kansra
Rolapitant is a selective and long-acting neurokinin-1 receptor antagonist approved in an oral formulation in combination with other antiemetic agents for the prevention of delayed chemotherapy-induced nausea and vomiting in adults. Four open-label phase 1 studies evaluated the safety and drug-drug interactions of a single dose of rolapitant given intravenously (166.5 mg) or orally (180 mg) with oral digoxin (0.5 mg) or sulfasalazine (500 mg), probe substrates for the P-glycoprotein (P-gp) and breast cancer resistance protein (BCRP), respectively...
September 14, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28895668/concepts-and-controversies-in-the-treatment-of-cutaneous-lichen-planus
#18
Charles Puza, Adela R Cardones
Cutaneous lichen planus (CLP) is a chronic autoimmune disease classically associated with severely pruritic, polygonal, violaceous, flat-topped papules and plaques. Subtypes such as hypertrophic and bullous lichen planus and lichen planus pigmentosus have been described. Treatment can be challenging, and prospective controlled studies are lacking. Corticosteroids remain the major options for topical and systemic treatment, although some non-steroidal options exist. Phototherapy, especially with narrow band ultraviolet B (NB-UVB), is effective, but caution must be taken because of the risk of keobnerization...
December 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28879052/obesity-is-a-strong-predictor-of-worse-clinical-outcomes-and-treatment-responses-in-early-rheumatoid-arthritis-results-from-the-swefot-trial
#19
Adrian Levitsky, Kerstin Brismar, Ingiäld Hafström, Karen Hambardzumyan, Cecilia Lourdudoss, Ronald F van Vollenhoven, Saedis Saevarsdottir
OBJECTIVES: The aim of this paper was to analyse the impact of obesity, in addition to known predictors, on disease outcome in early rheumatoid arthritis (RA). METHODS: Body mass index (BMI) was available in 260 patients from the Swedish pharmacotherapy trial (SWEFOT). Differences in disease activity (DAS28), functional impairment (HAQ), pain (Visual Analogue Scale, VAS-pain) and radiographic damage were evaluated over 24 months between BMI categories (obese BMI >30, n=43; overweight BMI=25-29...
2017: RMD Open
https://www.readbyqxmd.com/read/28868484/acute-hepatitis-in-the-dress-syndrome
#20
Ana Maria Oliveira, Rita Carvalho, Alexandra Martins, Jorge Reis
Drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome is a severe, idiosyncratic reaction characterized by diffuse maculopapular rash, facial edema, lymphadenopathy, fever, eosinophilia and/or other leukocyte abnormalities, and involvement of internal organs as liver, kidney, heart and lung. Diagnosing this entity is specifically complicated due to the multiplicity of organs involved. DRESS syndrome must be recognized promptly and the causative drug withdrawn in order to improve patient outcomes...
November 2016: GE Port J Gastroenterol
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