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Colchicine

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https://www.readbyqxmd.com/read/28442873/anagen-effluvium-following-acute-colchicine-poisoning
#1
Andrea Combalia, Carola Baliu-Piqué, Adriana Fortea, Juan Ferrando
We present a case of a 17-year-old girl admitted to the Psychiatric Department recovering from a suicide attempt with colchicine. One week after poisoning, a sudden onset of hair loss was observed. Positive hair pull test and trichoscopy demonstrated the presence of anagen hairs with pigmented long roots covered by the root sheaths. Colchicine poisoning is an uncommon, but potentially life-threatening toxicologic emergency. An overdose of colchicine inhibits cell division, and thus the most affected organs are those which have a high rate of cell turnover...
October 2016: International Journal of Trichology
https://www.readbyqxmd.com/read/28440465/5-furan-2-yl-4-3-4-5-trimethoxyphenyl-3h-1-2-dithiol-3-one-oxime-6f-a-new-synthetic-compound-causes-human-%C3%AF-brosarcoma-ht-1080-cell-apoptosis-by-disrupting-tubulin-polymerisation-and-inducing-g2-m-arrest
#2
Daiying Zuo, Lili Pang, Jiwei Shen, Qi Guan, Zhaoshi Bai, Huijuan Zhang, Yao Li, Guodong Lu, Weige Zhang, Yingliang Wu
In the current study, we synthesized a series of new compounds targeting tubulin and tested their anti-proliferative activities. Among these new synthetic com-pounds, 5-(furan-2-yl)-4-(3,4,5-trimethoxyphenyl)-3H-1,2-dithiol-3-one oxime (6f) exhibited significant anti-proliferative activity against different human cancer cell lines including human gastric adenocarcinoma SGC-7901, human non-small cell lung cancer A549, and human fibrosarcoma HT-1080. As a result, 6f was selected to further test the sensitivity to different cancer cell lines including human cervical cancer cell line HeLa, human breast cancer cell line MCF-7, non-small cell lung cancer cell line A549, human liver carcinoma cell line HepG-2, human oral squamous cell carcinoma cell lines KB, SGC-7901 and HT-1080...
April 18, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28436240/biotherapeutic-potential-and-mechanisms-of-action-of-colchicine
#3
Kashyap Kumar Dubey, Punit Kumar, Nikolaos E Labrou, Pratyoosh Shukla
Cancer is a clinical situation caused by uncontrolled cell division and is responsible for a large number of deaths worldwide. Colchicine is a classical antimitotic, tubulin-binding agent (TBA) which is being explored for its antitumor activities, although its tubulin-binding ability leads to some toxicity toward normal cells proliferation. Colchicine derivatives are considered as potent antitumor compounds with less toxicity compared to colchicine. Derivatives with substituted functional groups at A-ring (methoxy), B-ring (acetamide) or C-ring (methoxy) have been synthesized via chemical and microbial routes and show modified bioactivities and altered tropolonic functionality...
April 23, 2017: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/28434436/treatment-options-for-gout
#4
Bettina Engel, Johannes Just, Markus Bleckwenn, Klaus Weckbecker
BACKGROUND: 1-2% of adults in Germany suffer from gout. Gout is one of the few rheumatological diseases that can be cured. It arises through the deposition of uric acid crystals in joints as a result of hyperuricemia. Painful redness and swelling of the affected joints are typical findings. Multiple pertinent guidelines and treatment recommendations have been published, but there is reason to believe that patients with gout are not always treated accordingly. METHODS: This review is based on relevant publications from the years 2000-2016 that were retrieved by a selective search in the Cochrane and PubMed databases...
March 31, 2017: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/28433814/synovial-fluid-pro-inflammatory-profile-differs-according-to-the-characteristics-of-knee-pain
#5
Ying Ying Leung, Janet L Huebner, Benjamin Haaland, Steven Bak Siew Wong, Virginia Byers Kraus
OBJECTIVE: The role of inflammation and pain in osteoarthritis (OA) is not fully understood. We evaluated the association between pro-inflammatory biomarkers and pain. METHODS: We used baseline data and samples from a randomized controlled trial of colchicine for symptomatic knee OA. Severity of pain of the more symptomatic knee was assessed by NHANES-I criterion and WOMAC pain index. Pains on movement and at rest were self-reported on an 11-point Likert scale. Severity of radiographic tibiofemoral OA was assessed by Kellgren and Lawrence (KL) grade...
April 19, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28430170/current-management-of-gout-practical-messages-from-eular-2016-guidelines
#6
George Nuki, Michael Doherty, Pascal Richette
The European League Against Rheumatism published updated recommendations for the management of gout in 2016, comprising 3 overarching principles and 11 key recommendations for clinical practice. Patient education about the pathophysiology of gout and its comorbidities, as well as the existence of effective treatments are important, and understanding the principles of managing acute attacks and eliminating urate crystals by lifelong lowering of the serum urate (SU) below a target level are essential. Advice about lifestyle, diet, weight, and other risk factors, as well as the need to screen for, and manage, comorbidities is emphasized...
April 21, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/28425090/determinants-of-the-post-pericardiotomy-syndrome-a-systematic-review
#7
REVIEW
Dirk van Osch, Hendrik M Nathoe, Kirolos A Jacob, Pieter A Doevendans, Diederik van Dijk, Willem J Suyker, Jan M Dieleman
BACKGROUND: Post Pericardiotomy Syndrome (PPS) is a common complication following cardiac surgery, however the exact pathogenesis remains uncertain. Identifying risk factors of PPS might help to better understand the syndrome. The aim of this study was to provide an overview of existing literature around determinants of PPS in adult cardiac surgery patients. MATERIAL AND METHODS: Two independent investigators performed a systematic search in MEDLINE, EMBASE and the Cochrane Central Register...
April 20, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28424873/the-changes-in-the-reproductive-barrier-between-hexaploid-wheat-triticum-aestivum-l-and-rye-secale-cereale-l-different-states-lead-to-different-fates
#8
Natalia Tikhenko, Twan Rutten, Angelika Senula, Myroslava Rubtsova, E R Joachim Keller, Andreas Börner
The changes in the reproductive barrier between hexaploid wheat ( Triticum aestivum L.) and rye ( Secale cereale L.) can be induced using in situ embryo rescue of abnormal embryos, yielding stable fertile amphidiploid plants. In intergeneric crosses between hexaploid wheat (Triticum aestivum L.) and rye (Secale cereale L.), postzygotic barriers may occur at different stages of hybrid development. One such mechanism is embryo lethality, which is genetically determined by the interaction and expression of two incompatible genes in wheat (Eml-A1) and rye (Eml-R1)...
April 19, 2017: Planta
https://www.readbyqxmd.com/read/28423482/clerosterol-from-vinegar-baked-radix-bupleuri-modifies-drug-transport
#9
Ya Zhao, Li-Min Feng, Li-Juan Liu, Xian Zhang, Rui-Zhi Zhao
Vinegar-baked Radix Bupleuri (VBRB) is reportedly used to treat liver cancer when combined with traditional chemotherapy and data show that this combination may modify drug transport. We isolated clerosterol from VBRB and studied its effect on drug transporters in normal or transporter-overexpressing cells. Transporter activity was assayed using cellular substrate concentration and transporter expression with Western blot and RT-qPCR. Clerosterol decreased cisplatin uptake in BRL cells mainly through increasing Mrp2 gene expression...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423007/recombinants-from-the-crosses-between-amphidiploid-and-cultivated-peanut-arachis-hypogaea-for-pest-resistance-breeding-programs
#10
Ailton Ferreira de Paula, Naiana Barbosa Dinato, Bianca Baccili Zanotto Vigna, Alessandra Pereira Fávero
Peanut is a major oilseed crop worldwide. In the Brazilian peanut production, silvering thrips and red necked peanut worm are the most threatening pests. Resistant varieties are considered an alternative to pest control. Many wild diploid Arachis species have shown resistance to these pests, and these can be used in peanut breeding by obtaining hybrid of A and B genomes and subsequent polyploidization with colchicine, resulting in an AABB amphidiploid. This amphidiploid can be crossed with cultivated peanut (AABB) to provide genes of interest to the cultivar...
2017: PloS One
https://www.readbyqxmd.com/read/28420825/colchicine-improves-survival-left-ventricular-remodeling-and-chronic-cardiac-function-after-acute-myocardial-infarction
#11
Koichiro Fujisue, Koichi Sugamura, Hirofumi Kurokawa, Junichi Matsubara, Masanobu Ishii, Yasuhiro Izumiya, Koichi Kaikita, Seigo Sugiyama
BACKGROUND: Several studies have reported that colchicine attenuated the infarct size and inflammation in acute myocardial infarction (MI). However, the sustained benefit of colchicine administration on survival and cardiac function after MI is unknown. It was hypothesized that the short-term treatment with colchicine could improve survival and cardiac function during the recovery phase of MI.Methods and Results:MI was induced in mice by permanent ligation of the left anterior descending coronary artery...
April 18, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28417463/pharmacological-interventions-for-primary-sclerosing-cholangitis-an-attempted-network-meta-analysis
#12
REVIEW
Francesca Saffioti, Kurinchi Selvan Gurusamy, Neil Hawkins, Clare D Toon, Emmanuel Tsochatzis, Brian R Davidson, Douglas Thorburn
BACKGROUND: Primary sclerosing cholangitis is a chronic cholestatic liver disease that is associated with both hepatobiliary and colorectal malignancies, which can result in liver cirrhosis and its complications. The optimal pharmacological treatment for patients with primary sclerosing cholangitis remains controversial. OBJECTIVES: To assess the comparative benefits and harms of different pharmacological interventions in people with primary sclerosing cholangitis by performing a network meta-analysis, and to generate rankings of available pharmacological interventions according to their safety and efficacy...
March 28, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28413100/colchicine-resistance-and-intolerance-in-familial-mediterranean-fever-definition-causes-and-alternative-treatments
#13
REVIEW
Seza Ozen, Isabelle Kone-Paut, Ahmet Gül
BACKGROUND: Familial Mediterranean Fever (FMF) is a hereditary autoinflammatory syndrome characterized by recurrent serositis or arthritis attacks and, in some patients, chronic subclinical inflammation that predisposes to secondary amyloidosis. Colchicine is the gold standard of treatment, which reduces attack frequency and amyloidosis risk. However, up to 5% of patients are considered resistant or inadequately respond to colchicine, and some others cannot tolerate the side effects of effective doses of colchicine (colchicine intolerant)...
March 20, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28411137/gospel-3-management-of-gout-by-primary-care-physicians-and-office-based-rheumatologists-in-france-in-the-early-21-st-century-comparison-with-2006-eular-recommendations
#14
Julia Goossens, Sylvie Lancrenon, Sabine Lanz, Hang-Korng Ea, Charles Lambert, Pascal Guggenbuhl, Alain Saraux, Catherine Delva, Samy Sahbane, Frédéric Lioté
INTRODUCTION: In 2006, recommendations about the management of gout were issued by the EUropean League Against Rheumatism (EULAR). The objective of this work was to compare these recommendations to practice patterns of physicians working in private practices in France. METHOD: In a prospective multicenter nationwide study conducted in France, a random sample of primary-care physicians (PCPs) and private-practice rheumatologists (PPRs) was taken in 2009. Each physician included 2 consecutive patients with gout...
April 11, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28406191/synthesis-and-biological-evaluation-of-2-methyl-4-5-disubstituted-oxazoles-as-a-novel-class-of-highly-potent-antitubulin-agents
#15
Romeo Romagnoli, Pier Giovanni Baraldi, Filippo Prencipe, Paola Oliva, Stefania Baraldi, Maria Kimatrai Salvador, Luisa Carlota Lopez-Cara, Andrea Brancale, Salvatore Ferla, Ernest Hamel, Roberto Ronca, Roberta Bortolozzi, Elena Mariotto, Elena Porcù, Giuseppe Basso, Giampietro Viola
Antimitotic agents that interfere with microtubule formation are one of the major classes of cytotoxic drugs for cancer treatment. Multiple 2-methyl-4-(3',4',5'-trimethoxyphenyl)-5-substituted oxazoles and their related 4-substituted-5-(3',4',5'-trimethoxyphenyl) regioisomeric derivatives designed as cis-constrained combretastatin A-4 (CA-4) analogues were synthesized and evaluated for their antiproliferative activity in vitro against a panel of cancer cell lines and, for selected highly active compounds, interaction with tubulin, cell cycle effects and in vivo potency...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28403783/synthesis-and-evaluation-of-2-naphthaleno-trans-stilbenes-and-cyanostilbenes-as-anticancer-agents
#16
Nikhil R Madadi, Narsimha R Penthala, Amit Ketkar, Robert L Eoff, Vicenta Trujullo-Alonso, Monica L Guzman, Peter A Crooks
A series of novel 2-naphthaleno stilbenes (3a-3h) and cyanostilbenes (5a-5h) have been synthesized as analogs of resveratrol and DMU-212, and evaluated for their anticancer activity against a panel of 54 human cancer cell lines. The analog 5c ((Z)-3-(naphthalen-2-yl)-2-(3,4,5-trimethoxyphenyl) acrylonitrile) was significantly effective against four particular cancer cell lines: i.e. colon cancer cell line COLO 205, CNS cancer cell line SF 539 and melanoma cancer cell lines SK-MEL 5 and MDA-MB-435 with GI50 values of 22 nM, 25 nM, 23 nM and 21 nM, respectively...
April 12, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28400235/rational-design-and-synthesis-of-2-anilinopyridinyl-benzothiazole-schiff-bases-as-antimitotic-agents
#17
Thokhir B Shaik, S M Ali Hussaini, V Lakshma Nayak, M Lakshmi Sucharitha, M Shaheer Malik, Ahmed Kamal
Based on our previous results and literature precedence, a series of 2-anilinopyridinyl-benzothiazole Schiff bases were rationally designed by performing molecular modeling experiments on some selected molecules. The binding energies of the docked molecules were better than the E7010, and the Schiff base with trimethoxy group on benzothiazole moiety, 4y was the best. This was followed by the synthesis of a series of the designed molecules by a convenient synthetic route and evaluation of their anticancer potential...
March 30, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28399663/upstream-biomanufacturing-of-pharmaceutical-colchicine
#18
Ganapathy Sivakumar
The plant-based colchicine potentially affects major diseases such as cardiovascular events, cancers and gout. Gloriosa superba seeds are a conventional pharmaceutical source of colchicine. The demand for pharmaceutical-grade colchicine has increased due to the shortage of feasible upstream manufacturing, encompassing all stages in the processes of biosynthesis and biomanufacturing before the raw material is ready for purification. Consequently, developing sustainable upstream industrial colchicine biofactories is imperative, especially in curtailing drug costs...
April 12, 2017: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/28399108/decreased-levels-of-baseline-and-drug-induced-tubulin-polymerisation-are-hallmarks-of-resistance-to-taxanes-in-ovarian-cancer-cells-and-are-associated-with-epithelial-to-mesenchymal-transition
#19
George E Duran, Yan C Wang, François Moisan, E Brian Francisco, Branimir I Sikic
BACKGROUND: ABCB1 expression is uncommon in ovarian cancers in the clinical setting so we investigated non-MDR mechanisms of resistance to taxanes. METHODS: We established eight taxane-resistant variants from the human ovarian carcinoma cell lines A2780/1A9, ES-2, MES-OV and OVCAR-3 by selection with paclitaxel or docetaxel, with counter-selection by the transport inhibitor valspodar. RESULTS: Non-MDR taxane resistance was associated with reduced intracellular taxane content compared to parental controls, and cross-resistance to other microtubule stabilising drugs...
April 11, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28399010/pleural-effusions-in-acute-idiopathic-pericarditis-and-postcardiac-injury-syndrome
#20
José M Porcel
PURPOSE OF REVIEW: Pleural effusions are frequent in the context of acute idiopathic pericarditis and following pericardiotomy, but they have seldom been characterized. This review summarizes their most relevant clinical features. RECENT FINDINGS: In acute idiopathic pericarditis, pleural effusions tend to be left-sided and, if bilateral, they are usually larger on the left. Less than 5% are unilateral right-sided. About 90% of the effusions occupy less than one-third of the hemithorax, and 99% meet Light's exudative criteria with a predominance of lymphocytes in three fourths of the cases...
April 8, 2017: Current Opinion in Pulmonary Medicine
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