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https://www.readbyqxmd.com/read/28545020/microtubule-inhibitor-sp-6-27-inhibits-angiogenesis-and-induces-apoptosis-in-ovarian-cancer-cells
#1
Arpita Kulshrestha, Gajendra K Katara, Safaa A Ibrahim, Renukadevi Patil, Shivaputra A Patil, Kenneth D Beaman
In ovarian cancer (OVCA), treatment failure due to chemo-resistance is a serious challenge. It is therefore critical to identify new therapies that are effective against resistant tumors and have reduced side effects. We recently identified 4-H-chromenes as tubulin depolymerizing agents that bind to colchicine site of beta-tubulin. Here, we screened a chemical library of substituted 4-H-chromenes and identified SP-6-27 to exhibit most potent anti-proliferative activity towards a panel of human cisplatin sensitive and resistant OVCA cell lines with 50% inhibitory concentration (IC50; mean ± SD) ranging from 0...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28544467/a-survey-on-the-beliefs-and-knowledge-of-gout-management-in-new-medical-graduates-new-south-wales-australia
#2
Matthew Terrill, John Riordan
AIM: To assess the beliefs and knowledge of gout management in new medical graduates. METHOD: A survey on gout management was sent to new medical graduates during their orientation week, New South Wales, Australia. RESULTS: Of 15 hospital networks, 11 agreed to participate. From these, 168 graduates responded (23.7% response rate). Most (81.1%) felt that gout was a serious disease, 51.2% answered that they had been taught adequately to manage acute gout, only 37...
May 25, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28539550/a-retrospective-analysis-of-7-cases-of-familial-mediterranean-fever
#3
Chie Ogita, Kiyoshi Matsui, Dai Kisida, Masahide Yazaki, Akinori Nakamura, Satosi Kaku, Hidehiko Makino, Rei Tadokoro, Kouta Azuma, Kazuyuki Tsuboi, Mei Tani, Masao Tamura, Takahiro Yoshikawa, Mai Morimoto, Aki Nishioka, Masahiro Sekiguchi, Naoto Azuma, Masayasu Kitano, Shinichiro Tsunoda, Hideaki Sawai, Hajime Sano
BACKGROUND: Familial mediterranean fever (FMF) is a single inherited autoinflammatory disease characterized by periodic fever with relatively short duration of 1 to 3 days and sterile serositis. Although the prevalence rate is highest in the Mediterranean coastal area, a large number of cases have been reported recently by genetic analysis by identification of MEFV (Mediterranean fever) which is responsible gene in Japan too. In outpatient department of rheumatology, diagnosis and treatment of FMF is performed in cases where fever and abdominal pain attack are repeated for a short period of time...
2017: Nihon Rinshō Men'eki Gakkai Kaishi, Japanese Journal of Clinical Immunology
https://www.readbyqxmd.com/read/28539056/systemic-inflammation-and-arrhythmogenesis-a-review-of-mechanistic-and-clinical-perspectives
#4
Tulin Yalta, Kenan Yalta
In the recent decades, systemic inflammation, as a clinical phenomenon, has been the focus of extensive research particularly with regard to its potential association with a variety of cardiovascular diseases including atherogenesis and acute coronary syndromes. Within this context, there also exists a potential link between systemic inflammation and cardiac arrhythmogenesis in various aspects. Accordingly, systemic inflammation response as measured with inflammation markers (cytokines, etc) has been investigated in the setting of well-known cardiac arrhythmias including atrial fibrillation and ventricular tachycardia...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/28538889/schamberg-s-disease-case-report-with-therapeutic-success-by-using-colchicine
#5
Maria Lopes Lamenha Lins Cavalcante, Paula Yoshiko Masuda, Fernanda Freitas de Brito, Ana Cecília Versiani Duarte Pinto, Gabriela Itimura, Adauto José Ferreira Nunes
Pigmented purpuric dermatoses (PPD) include a spectrum of diseases with different clinical aspects, but with similar histopathological features. Specific clinical findings allow the division of PPD in variants. Schamberg's disease is the most common. Treatment is sometimes ineffective and recurrences are common. There are reports of patients who responded well to the use of colchicine. We report the case of a 32-year-old woman, previously healthy, with a history of onset of asymptomatic lesions in legs. She presented purpuric skin eruptions and brownish stains diffusely distributed in the lower limbs...
March 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28537927/wx-132-18b-a-novel-microtubule-inhibitor-exhibits-promising-anti-tumor-effects
#6
Fang Guan, Rui Ding, Qi Zhang, Wei Chen, Feifei Li, Long Long, Wei Li, Linna Li, Dexuan Yang, Lan Xie, Shoujun Yuan, Lili Wang
Cancer drug researchers have been seeking microtubule-inhibiting agents (MIAs) with higher bioactivity and lower toxicity than currently marketed drugs. WX-132-18B, a novel structural compound synthesized at our institute, specifically bound to the colchicine-binding site on tubulin rather than the vinblastine site, and concentration-dependently reduced microtubule content via depolymerization. It exhibited the same cellular phenotypic profiles as the classic MIAs (colchicine, vincristine, and taxol), including inducing cell cycle arrest at the G2/M phase, triggering tumor cell apoptosis, promoting nuclear membrane permeability, reducing mitochondrial membrane potential, and disrupting the redox system balance...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28535126/activated-charcoal-significantly-reduces-the-amount-of-colchicine-released-from-gloriosa-superba-in-simulated-gastric-and-intestinal-media
#7
Shukry Zawahir, Indika Gawarammana, Paul I Dargan, Mahfoudh Abdulghni, Andrew H Dawson
BACKGROUND: Poisoning with Gloriosa superba, a plant containing colchicine, is common in Sri Lanka. OBJECTIVES: This study was to estimate release of colchicine from 5 g of different parts of Gloriosa superba in simulated gastric and intestinal media, and examine the binding efficacy of activated charcoal (AC) to colchicine within this model. METHODS: A USP dissolution apparatus-II was used to prepare samples for analysis of colchicine using HPLC...
May 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28533874/-cardiac-pseudotumor-revealing-beh%C3%A3-et-s-disease
#8
Fouad Nya, Abdessamad Abdou, Mehdi Bamous, Younes Moutakiallah, Noureddine Atmani, Aniss Seghrouchni, Mahdi Ait Houssa, Abdellatif Boulahya
Intracardiac thrombosis is a rare complication of Behçet's disease (BD), which may manifest as intracardiac tumor. In half of cases, its detection precedes the diagnosis of MB. High mortality rates may be related to post-surgical complications and/or pulmonary arteries involvement. We report the case of a 29-year old young patient, with a previous history of bipolar aphthosis, who underwent surgery after the detection of right atrium and ventricle tumor. Anatomo-pathological examination showed thrombus and MB was diagnosed in the postoperative period...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28528454/new-insights-into-pericarditis-mechanisms-of-injury-and-therapeutic-targets
#9
REVIEW
Bo Xu, Serge C Harb, Paul C Cremer
PURPOSE OF REVIEW: This review article aims to provide a contemporary insight into the pathophysiological mechanisms of and therapeutic targets for pericarditis, drawing distinction between autoinflammatory and autoimmune pericarditis. RECENT FINDINGS: Recent research has focused on the distinction between autoinflammatory and autoimmune pericarditis. In autoinflammatory pericarditis, viruses can activate the sensor molecule of the inflammasome, which results in downstream release of cytokines, such as interleukin-1, that recruit neutrophils and macrophages to the site of injury...
July 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28527708/cortical-cytoskeleton-dynamics-regulates-plasma-membrane-calcium-atpase-isoform-2-pmca2-activity
#10
Marianela G Dalghi, Mariela Ferreira-Gomes, Nicolás Montalbetti, Alexandre Simonin, Emanuel E Strehler, Matthias A Hediger, Juan Pablo Rossi
We have previously shown that purified actin can directly bind to human plasma membrane Ca(2+) ATPase 4b (hPMCA4b) and exert a dual modulation on its Ca(2+)-ATPase activity: F-actin inhibits PMCA while short actin oligomers may contribute to PMCA activation. These studies had to be performed with purified proteins given the nature of the biophysical and biochemical approaches used. To assess whether a functional interaction between the PMCAs and the cortical cytoskeleton is of physiological relevance, we characterized this phenomenon in the context of a living cell by monitoring in real-time the changes in the cytosolic calcium levels ([Ca(2+)]CYT)...
May 17, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28523104/3-aroyl-1-4-diarylpyrroles-inhibit-chronic-myeloid-leukemia-cell-growth-through-an-interaction-with-tubulin
#11
Giuseppe La Regina, Ruoli Bai, Antonio Coluccia, Valeria Famiglini, Sara Passacantilli, Valentina Naccarato, Giorgio Ortar, Carmela Mazzoccoli, Vitalba Ruggieri, Francesca Agriesti, Claudia Piccoli, Tiziana Tataranni, Marianna Nalli, Andrea Brancale, Stefania Vultaggio, Ciro Mercurio, Mario Varasi, Concetta Saponaro, Sara Sergio, Michele Maffia, Addolorata Maria Luce Coluccia, Ernest Hamel, Romano Silvestri
We designed 3-aroyl-1,4-diarylpyrrole (ARDAP) derivatives as potential anticancer agents having different substituents at the 1- or 4-phenyl ring. ARDAP compounds exhibited potent inhibition of tubulin polymerization, binding of colchicine to tubulin, and cancer cell growth. ARDAP derivative 10 inhibited the proliferation of BCR/ABL-expressing KU812 and LAMA84 cells from chronic myeloid leukemia (CML) patients in blast crisis and of hematopoietic cells ectopically expressing the imatinib mesylate (IM)-sensitive KBM5-WT or its IM-resistant KBM5-T315I mutation...
May 11, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28522413/microglia-support-atf3-positive-neurons-following-hypoglossal-nerve-axotomy
#12
Tatsuhide Tanaka, Koichi Murakami, Yoshio Bando, Taichi Nomura, Ayami Isonishi, Shoko Morita-Takemura, Kouko Tatsumi, Akio Wanaka, Shigetaka Yoshida
Microglia are essential in developmental processes and maintenance of neuronal homeostasis. Experimental axotomy of motor neurons results in neurodegeneration, and microglia in motor nuclei become activated and migrate towards injured neurons. However, whether these activated microglia are protective or destructive to neurons remains controversial. In the present study, we transected the hypoglossal nerve in BALB/c mice, causing activating transcription factor 3 (ATF3) and growth associated protein 43 (GAP43) induction, and partial neuronal death...
May 15, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28517369/treatment-of-primary-biliary-cholangitis-non-responders-a-systematic-review
#13
Duminda Suraweera, Harman Rahal, Melissa Jimenez, Matthew Viramontes, Gina Choi, Sammy Saab
BACKGROUND: Primary biliary cholangitis (PBC), formerly known as primary biliary cirrhosis, is a chronic cholestatic liver disease characterized by an immune mediated destruction of intrahepatic bile ducts. Ursodeoxycholic acid (UDCA) has been the primary medication for the treatment of PBC, resulting in improved liver tests, resolution of symptoms and increased transplant free survival. However, not all patients respond to UDCA. The aim of this systematic review is to provide an evidence based assessment of the medications that have been studied in patients who are refractory to UDCA...
May 18, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28513247/use-of-non-biologic-treatments-in-antihistamine-refractory-chronic-urticaria-a-review-of-published-evidence
#14
Jesper Grønlund Holm, Ilya Ivyanskiy, Simon Francis Thomsen
BACKGROUND: Knowledge of effectiveness and safety of the non-biologic, non-antihistamine treatments used for chronic urticaria is important as in some cases the principal guideline-recommended drug; omalizumab, has limited effect, side effects, or is too expensive or unavailable. Herein we systematically review the evidence for the use of the non-biologic treatments in antihistamine-refractory chronic urticaria. METHODS: We performed a systematic review of the literature using PubMed and Webofscience and identified studies that reported use of one or more of the non-biological, non-antihistamine treatment options for chronic urticaria...
May 17, 2017: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/28512995/alpha-1-antitrypsin-deficiency-related-panniculitis-two-cases-with-diverse-clinical-courses
#15
E R Storan, S M O' Gorman, P Hawkins, L Aalto, A Murphy, T Markham
Alpha-1-antitrypsin deficiency (AATD)-related panniculitis is an extremely rare and underdiagnosed entity, and there is a paucity of data on its treatment. We report two cases of AATD-related panniculitis. The first was a 24-year-old woman with known AATD who presented with painful leg ulcers refractory to treatment with corticosteroids and colchicine. She had a good response to α1-antitrypsin infusions but required dose adjustment due to flares in disease activity. The second case was a 38-year-old woman who presented with painful nodules on the legs refractory to corticosteroid therapy...
May 17, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28510185/morphological-physiological-cytological-and-phytochemical-studies-in-diploid-and-colchicine-induced-tetraploid-plants-of-fagopyrum-tataricum-l-gaertn
#16
Lin-Jiao Wang, Mao-Yin Sheng, Pei-Cai Wen, Jia-Ying Du
BACKGROUND: Tartary buckwheat are very popular as an important functional food material and its cultivation is very widespread in our whole world, but there obviously lack works in the researches of genetic breeding for agricultural and medicinal utilization. The aim of this study is to obtain good germplasm resources for agricultural and medicinal use of tartary buckwheat (Fagopyrum tataricum) by inducing the tetraploid plants. RESULTS: Four cultivars of F. tataricum, that is, Qianwei 2#, Jinku 2#, Chuanqiao 1#, and Liuqiao 1# were selected to experiment...
December 2017: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28502672/dta0100-dual-topoisomerase-ii-and-microtubule-inhibitor-evades-paclitaxel-resistance-in-p-glycoprotein-overexpressing-cancer-cells
#17
Ana Podolski-Renić, Jasna Banković, Jelena Dinić, Carla Ríos-Luci, Miguel X Fernandes, Nuria Ortega, Nataša Kovačević-Grujičić, Víctor S Martín, José M Padrón, Milica Pešić
The efficacy of microtubule targeting agents in cancer treatment has been compromised by the development of drug resistance that may involve both, P-glycoprotein overexpression and the changes in β-tubulin isoforms' expression. The anti-Topoisomerase II activity of methyl 4-((E)-2-(methoxycarbonyl)vinyloxy)oct-2-ynoate (DTA0100) was recently reported. Herein, we further evaluated this propargylic enol ether derivative and found that it exerts inhibitory effect on tubulin polymerization by binding to colchicine binding site...
May 11, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28497352/monogenic-periodic-fever-syndromes-treatment-options-for-the-pediatric-patient
#18
REVIEW
Seza Ozen, Selcan Demir
Autoinflammatory diseases are disorders of the innate immune system characterized by uncontrolled inflammation. The most commonly encountered autoinflammatory diseases are the hereditary periodic fever syndromes, which present with fever and other features of the skin, serosal membranes, and musculoskeletal system. The main inherited (monogenic) periodic fever syndromes are familial Mediterranean fever (FMF), cryopyrin-associated periodic syndrome (CAPS), tumor necrosis factor receptor-associated periodic syndrome (TRAPS), and hyperimmunoglobulin D syndrome (HIDS)/mevalonate kinase deficiency (MKD)...
May 11, 2017: Paediatric Drugs
https://www.readbyqxmd.com/read/28492007/colchicine-may-assist-in-reducing-granulation-tissue-in-junctional-epidermolysis-bullosa
#19
Minhee Kim, Swaranjali Jain, Adam G Harris, Dedee F Murrell
Epidermolysis bullosa (EB) is a rare, inherited blistering genodermatosis. Patients with junctional EB (JEB) due to LAMB3 mutations have widespread blisters and erosions of skin, mucosae, and nails, creating significant physical, emotional, and psychosocial burdens. Here we report the use of colchicine for ameliorating hypergranulating wounds in a 41-year-old female with JEB generalized intermediate. Her skin wounds and granulation tissue gradually exacerbated under silicone dressings such that she became profoundly anemic...
June 2016: International Journal of Women's Dermatology
https://www.readbyqxmd.com/read/28487937/colchicine-attenuates-renal-fibrosis-in-a-murine-unilateral-ureteral-obstruction-model
#20
Seiji Itano, Minoru Satoh, Hiroyuki Kadoya, Yuji Sogawa, Atsushi Uchida, Tamaki Sasaki, Naoki Kashihara
The present study aimed to assess the effects of colchicine, a known anti‑inflammatory agent, on renal fibrosis using a murine model of unilateral ureteral obstruction (UUO). Male C57BL/6 mice were divided into two groups, vehicle‑ and colchicine‑treated. Colchicine (0.5 mg/kg/day) was administered by osmotic pump, and the UUO procedure was performed on the left kidney 7 days later. The mice were sacrificed at 14 days following UUO. Colchicine treatment suppressed interstitial fibrosis of the UUO kidneys...
June 2017: Molecular Medicine Reports
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