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Colchicin

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https://www.readbyqxmd.com/read/28937869/effect-of-microtubule-disruption-on-dynamics-of-acidic-organelles-in-the-axons-of-primary-cultured-retinal-ganglion-cells
#1
Seiji Miyake, Yuji Takihara, Satoshi Yokota, Yoshihiro Takamura, Masaru Inatani
PURPOSE: Axonal transport is fundamental to autophagy in neuronal cells. To understand its biological significance in various conditions, it is necessary to monitor the process of autophagy. However, monitoring methods are often limited to static analyses, such as protein expression and histological observations. Autophagy has multistep process and is highly dynamic; therefore, additional techniques are necessary to study autophagy. In this study, we quantified the dynamics of autophagy-related organelle transport under conditions of dynamic instability and catastrophic disruption of microtubules using in vitro live imaging...
September 22, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28936775/biosynthesis-of-silver-nanoparticles-by-leaf-extract-of-albizia-saman-jacq-merr-and-their-cytotoxic-effect-on-mitotic-chromosomes-of-drimia-indica-roxb-jessop
#2
Azharuddin Daphedar, Tarikeri C Taranath
Silver nanoparticles synthesized using the leaf extract of Albizia saman (Jacq.) Merr. were tested for induction of cytogenetic abnormality in root tip cells of Drimia indica (Roxb.) Jessop (family Asperagaceae). The leaves are known to be rich in various phytochemicals like flavonoids, glycosides, saponins, steroids, tannins, and terpenoids, which may be responsible for bioreduction, biocapping, and stabilization of nanoparticles. The various instruments used for characterization include UV-VIS spectrophotometer, fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), X-Ray diffractometer (XRD), and high resolution transmission electron microscope (HR-TEM)...
September 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28931885/design-synthesis-and-structure-activity-relationship-of-3-6-diaryl-7h-1-2-4-triazolo-3-4-b-1-3-4-thiadiazines-as-novel-tubulin-inhibitors
#3
Qile Xu, Kai Bao, Maolin Sun, Jingwen Xu, Yueting Wang, Haiqiu Tian, Daiying Zuo, Qi Guan, Yingliang Wu, Weige Zhang
A novel series of 3,6-diaryl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazines were designed, synthesized and biologically evaluated as vinylogous CA-4 analogues, which involved a rigid [1,2,4]triazolo[3,4-b][1,3,4]thiadiazine scaffold to fix the configuration of (Z,E)-butadiene linker of A-ring and B-ring. Among these rigidly vinylogous CA-4 analogues, compounds 4d, 5b, 5i, 6c, 6e, 6g, 6i and 6k showed excellent antiproliferative activities against SGC-7901, A549 and HT-1080 cell lines with IC50 values at the nanomolar level...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28929799/tubulin-inhibitors-targeting-the-colchicine-binding-site-a-perspective-of-privileged-structures
#4
Wenlong Li, Honghao Sun, Shengtao Xu, Zheying Zhu, Jinyi Xu
The vital roles of microtubule in mitosis and cell division make it an attractive target for antitumor therapy. Colchicine binding site of tubulin is one of the most important pockets that have been focused on to design tubulin-destabilizing agents. Over the past few years, a large number of colchicine binding site inhibitors (CBSIs) have been developed inspired by natural products or synthetic origins, and many moieties frequently used in these CBSIs are structurally in common. In this review, we will classify the CBSIs into classical CBSIs and nonclassical CBSIs according to their spatial conformations and binding modes with tubulin, and highlight the privileged structures from these CBSIs in the development of tubulin inhibitors targeting the colchicine binding site...
September 20, 2017: Future Medicinal Chemistry
https://www.readbyqxmd.com/read/28922629/new-indole-based-chalconoids-as-tubulin-targeting-antiproliferative-agents
#5
Hassan Mirzaei, Mohammad Shokrzadeh, Mona Modanloo, Ali Ziar, Gholam Hossein Riazi, Saeed Emami
Tubulin-targeting compounds have a broad anticancer spectrum and are an important class of chemotherapeutic agents. Due to the importance of 3-bromo-3,5-dimethoxyphenyl scaffold in the anticancer activity of microtubule inhibitors such as crolibulin (EPC2407), we introduced this functionality into the indole-derived chalcones. Thus, we describe here the synthesis and biological evaluation of new indole-based chalconoids as tubulin-targeting antiproliferative agents. The best result was obtained by compound 9b against A549 cell with IC50 of 4...
September 7, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/28918897/colchicine-for-primary-prevention-of-atrial-fibrillation-after-open-heart-surgery-systematic-review-and-meta-analysis
#6
Carsten Lennerz, Manish Barman, Mahmoud Tantawy, Mark Sopher, Peter Whittaker
BACKGROUND: Atrial fibrillation occurs frequently after open-heart surgery. It is associated with increased morbidity and mortality, longer hospital stays, and increased healthcare costs. Prophylactic administration of colchicine may mitigate post-operative atrial fibrillation (POAF). METHODS: We searched PubMed, ClinicalTrials.gov and CENTRAL databases to identify randomized controlled trials (RCTs) that; (1) compared prophylactic use of colchicine to placebo, or usual care, in patients with sinus rhythm who underwent elective open-heart surgery and (2) reported POAF-incidence...
September 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28916423/potentially-reversible-rapid-onset-weakness-recognizing-colchicine-toxicity
#7
Jacqueline A Pettersen, Anurag Singh
No abstract text is available yet for this article.
September 12, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28912485/serial-millisecond-crystallography-for-routine-room-temperature-structure-determination-at-synchrotrons
#8
Tobias Weinert, Natacha Olieric, Robert Cheng, Steffen Brünle, Daniel James, Dmitry Ozerov, Dardan Gashi, Laura Vera, May Marsh, Kathrin Jaeger, Florian Dworkowski, Ezequiel Panepucci, Shibom Basu, Petr Skopintsev, Andrew S Doré, Tian Geng, Robert M Cooke, Mengning Liang, Andrea E Prota, Valerie Panneels, Przemyslaw Nogly, Ulrich Ermler, Gebhard Schertler, Michael Hennig, Michel O Steinmetz, Meitian Wang, Jörg Standfuss
Historically, room-temperature structure determination was succeeded by cryo-crystallography to mitigate radiation damage. Here, we demonstrate that serial millisecond crystallography at a synchrotron beamline equipped with high-viscosity injector and high frame-rate detector allows typical crystallographic experiments to be performed at room-temperature. Using a crystal scanning approach, we determine the high-resolution structure of the radiation sensitive molybdenum storage protein, demonstrate soaking of the drug colchicine into tubulin and native sulfur phasing of the human G protein-coupled adenosine receptor...
September 14, 2017: Nature Communications
https://www.readbyqxmd.com/read/28902412/interventions-for-treating-tuberculous-pericarditis
#9
REVIEW
Charles S Wiysonge, Mpiko Ntsekhe, Lehana Thabane, Jimmy Volmink, Dumisani Majombozi, Freedom Gumedze, Shaheen Pandie, Bongani M Mayosi
BACKGROUND: Tuberculous pericarditis can impair the heart's function and cause death; long term, it can cause the membrane to fibrose and constrict causing heart failure. In addition to antituberculous chemotherapy, treatments include corticosteroids, drainage, and surgery. OBJECTIVES: To assess the effects of treatments for tuberculous pericarditis. SEARCH METHODS: We searched the Cochrane Infectious Diseases Group Specialized Register (27 March 2017); the Cochrane Central Register of Controlled Trials (CENTRAL), published in the Cochrane Library (2017, Issue 2); MEDLINE (1966 to 27 March 2017); Embase (1974 to 27 March 2017); and LILACS (1982 to 27 March 2017)...
September 13, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28901251/case-report-severe-hematological-muscle-and-liver-toxicity-caused-by-drugs-and-artichoke-infusion-interaction-in-an-elderly-polymedicated-patient
#10
M G Campos, J Machado, M L Costa, S Lino, F Correia, F Maltez
Case report, in a patient with a history of diabetes and hypertension, treated with metformin, gliclazide, enalapril + hydrochlorothiazide, amlodipine, aspirin and diazepam, recently medicated for a gouty crisis with colchicine and clonixin without improvement. Believing it could help in the treatment of gouty crisis symptoms he took about 1.5 L of artichoke infusion (Cynara cardunculus). He felt better and did agriculture work but developed a distal muscle pain, severe anemia, standard biochemical liver cholestasis, increase of alkaline phosphatase and marked increase of inflammatory parameters (hyperleucocytosis) and enters in the emergency department at the hospital...
September 12, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/28899726/benefit-risk-of-corticosteroids-in-acute-gout-patients-an-updated-meta-analysis-and-economic-evaluation
#11
Dehong Sun, Xiaosong Ma, Chuansheng Li, Jie Ying, Youde Yan
The efficacy, safety and health-economic outcomes were compared between corticosteroid and non-corticosteroid treatments in acute gout patients. All electronic literatures comparing the curative effects or full economic evaluations of corticosteroids versus non-corticosteroids on acute pain in acute gout patients and published until June 30, 2017 in any language were searched through PubMed, EMBASE, Web of Science, and Cochrane Central Register of Controlled Trials. Pooled oddsratios with 95% confidence intervals and standard(or weighted) mean difference were calculated using random-or fixed-effects models according to the I(2) statistic test of heterogeneity...
September 9, 2017: Steroids
https://www.readbyqxmd.com/read/28898719/a-cost-effective-lc-ms-ms-method-for-identification-and-quantification-of-%C3%AE-amanitin-in-rat-plasma-application-to-toxicokinetic-study
#12
Chunlei Li, Fen Wei, Saqib Muhammad, Guangde Yang, Sicen Wang, Xinshe Liu
α-Amanitin is the main lethal component of amanita mushrooms, and data on its toxicokinetics are few. The aim of this study was to develop a sensitive and cost-effective method to identify α-amanitin and investigate its toxicokinetic parameters using liquid chromatography-triple quadrupole tandem mass spectrometry. The colchicine was used as the internal standard (IS). The compounds were extracted from plasma samples by protein precipitation with acetonitrile (containing 1% formic acid). The analysis was performed through multiple reactions monitoring...
September 5, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28891365/gout-in-a-rheumatology-clinic-results-of-eular-acr-guidelines-compliant-treatment
#13
O Slot
OBJECTIVE: Surveys of treatment results of gout in primary care have shown that less than 25% of patients reach the recommended treatment target (serum urate < 0.36 mmol/l). The aim of this study was to measure the results of a specialized European League Against Rheumatism/American College of Rheumatology (EULAR/ACR) guidelines-based treatment of gout in a rheumatology clinic. METHOD: Data from consecutive new crystal-proven gout patients were analysed in a prospective observational study...
September 11, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28890262/-relapsing-polychondritis-what-s-new-in-2017
#14
J Dion, G Leroux, L Mouthon, J-C Piette, N Costedoat-Chalumeau
Relapsing polychondritis (RP) is a rare condition characterized by recurrent inflammation of cartilaginous tissue and systemic manifestations. Data on pathophysiology are scarce and suggest an autoimmune mechanism. Recently, the possibility of dividing patients with RP into three distinct clinical phenotypes has been suggested: the hematological form representing less than 10% of patients, essentially older men with associated myelodysplasia and poor prognosis, the respiratory form representing about 25% of patients with predominant tracheobronchial involvement, and the mild and most frequent form, representing 65% of patients, with a good prognosis...
September 7, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28887917/hepatoprotective-effects-of-yulangsan-flavone-against-carbon-tetrachloride-ccl4-induced-hepatic-fibrosis-in-rats
#15
Youjia Guo, Xingmei Liang, Mingyu Meng, Hongxia Chen, Xiaojie Wei, Mingyan Li, Juman Li, Renbin Huang, Jinbin Wei
BACKGROUND: Yulangsan flavone (YLSF) was extracted from the root of Millettia pulchra Kurz var-laxior (Dunn) Z. Wei, which has been widely used for liver disease treatment in the Guangxi province of China. HYPOTHESIS/PURPOSE: The study was conducted to demonstrate the hepatoprotective effects of YLSF against CCl4-induced hepatic fibrosis in rats, meanwhile revealing the potential mechanism. STUDY DESIGN: Sprague-Dawley (SD) rats of both sexes were randomly divided into two groups: hepatic fibrosis group and normal control (NC) group...
September 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28878499/comparative-proteomic-analysis-of-autotetraploid-and-diploid-paulownia-tomentosa-reveals-proteins-associated-with-superior-photosynthetic-characteristics-and-stress-adaptability-in-autotetraploid-paulownia
#16
Lijun Yan, Guoqiang Fan, Minjie Deng, Zhenli Zhao, Yanpeng Dong, Yongsheng Li
To enlarge the germplasm resource of Paulownia plants, we used colchicine to induce autotetraploid Paulownia tomentosa, as reported previously. Compared with its diploid progenitor, autotetraploid P. tomentosa exhibits better photosynthetic characteristics and higher stress resistance. However, the underlying mechanism for its predominant characteristics has not been determined at the proteome level. In this study, isobaric tag for relative and absolute quantitation coupled with liquid chromatography-tandem mass spectrometry was employed to compare proteomic changes between autotetraploid and diploid P...
July 2017: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/28875601/can-the-thiol-disulfide-imbalance-be-a-predictor-of-colchicine-resistance-in-familial-mediterranean-fever
#17
Ahmet Omma, Sevinc Can Sandikci, Orhan Kücüksahin, Murat Alisik, Ozcan Erel
Familial Mediterranean fever (FMF) is a chronic autoinflammatory condition characterized by fever attacks and recurrent polyserositis. Subclinical inflammation that persists during attack-free periods can result in oxidative stress (OS) damage. Thiol groups bind to reactive oxygen radicals and protect cells and tissues from OS damage. The aim of this study was to investigate the relationship between thiol-disulfide balance and colchicine resistance in FMF patients during an attack or attack-free period. A newly developed spectrophotometric method was used to measure native thiol (NT) and disulfide (DS) levels in FMF patients and an age-sex matched group of healthy controls...
October 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28874151/effects-of-mollugo-pentaphylla-extract-on-monosodium-urate-crystal-induced-gouty-arthritis-in-mice
#18
Yun Mi Lee, Eun-Jung Shon, Ohn Soon Kim, Dong-Seon Kim
BACKGROUND: Gout is an inflammatory condition induced by the deposition of monosodium urate (MSU) crystals in joints and soft tissues, and it can lead to acute or chronic arthritis. MSU are pro-inflammatory stimuli that can initiate, amplify and sustain an intense inflammatory response. In this study, we evaluated the anti-inflammatory effect of an extract of Mollugo pentaphylla (MPE) on MSU-induced gouty arthritis in a mouse model. METHOD: An MSU crystal suspension (4 mg/50 μL) was injected intradermally into the right paw...
September 6, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28869938/mineral-and-bone-disorder-in-chronic-kidney-disease-a-case-report-from-vietnam
#19
Pham Van Bui, Nguyyen Minh Tuan, Huynh Thi Nguyen Nghia, Pham Nguyen Thanh Phuong
We report a case of calcium pyrophosphate dihydrate deposition disease (CPDD) involving a patient on maintenance hemodialysis (MHD). The 32-year-old man presented in August 2016 with a complaint of left shoulder swelling of 8 months' duration with no trauma or fever. He was diagnosed with nephrotic syndrome in 1998, which progressed to ESRD. He commenced MHD in 2012. Examination at our hospital revealed a soft nontender swelling of the left shoulder. Blood biochemistry showed elevated serum urate, phosphate, β2 microglobulin, and parathyroid hormone...
2017: Blood Purification
https://www.readbyqxmd.com/read/28868300/aa-amyloidosis-and-atypical-familial-mediterranean-fever-with-exon-2-and-3-mutations
#20
Junko Yabuuchi, Noriko Hayami, Junichi Hoshino, Keiichi Sumida, Tatsuya Suwabe, Toshiharu Ueno, Akinari Sekine, Masahiro Kawada, Masayuki Yamanouchi, Rikako Hiramatsu, Eiko Hasegawa, Naoki Sawa, Kenmei Takaichi, Takeshi Fujii, Kenichi Ohashi, Kiyoshi Migita, Takao Masaki, Yoshifumi Ubara
A 54-year-old Japanese man presented with recurrent abdominal pain, fever lasting >5 days, and renal failure. AA amyloidosis was proven by renal and gastric biopsy. Symptoms subsided with the administration of colchicine, but a subsequent recurrence of symptoms did not respond to colchicine. Mediterranean fever gene (MEFV) analysis showed that he was heterozygous for mutations in exon 2 (E148Q/R202Q) and exon 3 (P369S/R408Q), although he had none of the exon 10 mutations known to be closely related to AA amyloidosis...
May 2017: Case Reports in Nephrology and Dialysis
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