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https://www.readbyqxmd.com/read/29091380/real-world-efficacy-of-azelaic-acid-15-gel-for-the-reduction-of-inflammatory-lesions-of-rosacea
#1
P J Wirth, M H Henderson Berg, N Sadick
Approximately 16 million Americans have rosacea, an inflammatory cutaneous disorder with central facial erythema, papules, pustules, telangiectasia, flushing, and swelling being among the more commonly recognized features. Overexpression of cathelicidin peptide LL-37 has been implicated in the pathophysiology of rosacea. Azelaic acid has been found to inhibit the pathologic expression of cathelicidin, as well as the hyperactive protease activity that cleaves cathelicidin into LL-37. Given these findings, a small prospective, open-label, interventional trial was undertaken to assess the effects of azelaic acid 15% gel on inflammatory lesions of papulopustular rosacea in a real-world setting...
November 2017: Skin Therapy Letter
https://www.readbyqxmd.com/read/29054673/fluvial-biofilms-exposed-to-desiccation-and-pharmaceutical-pollution-new-insights-using-metabolomics
#2
Albert Serra-Compte, Natàlia Corcoll, Belinda Huerta, Sara Rodríguez-Mozaz, Sergi Sabater, Damià Barceló, Diana Álvarez-Muñoz
In many arid and semi-arid systems, biological communities in river ecosystems are submitted to flow interruption and desiccation, as well as to the impact of urban wastewaters. In this work, we studied (using a LC-LTQ-Orbitrap) the metabolomic response of biofilm communities exposed to both hydrological and chemical stressors. Fluvial biofilms were exposed to a mixture of 9 pharmaceuticals at a total concentration of 5000ng/L (mimicking concentrations and compounds found in polluted aquatic environments) and/or to seven days of desiccation, under laboratory conditions...
October 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29040817/potential-for-mcl-pha-production-from-nonanoic-and-azelaic-acids
#3
James Gillis, Kenton Ko, Juliana A Ramsay, Bruce A Ramsay
Greater than 65 % of canola and high oleic soy oil fatty acids is oleic acid, which is readily converted to nonanoic (NA) and azelaic (AzA) acids by ozonolysis. NA is an excellent substrate for medium-chain-length polyhydroxyalkanoate (mcl-PHA) production but AzA has few uses. Pseudomonas citronellolis DSM 50332 and Pseudomonas fluorescens ATCC 17400, both able to produce mcl-PHA from fatty acids and able to grow on AzA as the sole source of carbon and energy were assessed for the accumulation of mcl-PHA from AzA and NA...
October 17, 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28990936/olfactory-receptor-544-reduces-adiposity-by-steering-fuel-preference-toward-fats
#4
Chunyan Wu, Su Hyeon Hwang, Yaoyao Jia, Joobong Choi, Yeon-Ji Kim, Dahee Choi, Duleepa Pathiraja, In-Geol Choi, Seung-Hoi Koo, Sung-Joon Lee
Olfactory receptors (ORs) are present in tissues outside the olfactory system; however, the function of these receptors remains relatively unknown. Here, we determined that olfactory receptor 544 (Olfr544) is highly expressed in the liver and adipose tissue of mice and regulates cellular energy metabolism and obesity. Azelaic acid (AzA), an Olfr544 ligand, specifically induced PKA-dependent lipolysis in adipocytes and promoted fatty acid oxidation (FAO) and ketogenesis in liver, thus shifting the fuel preference to fats...
October 9, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28952257/-chemical-constituents-from-fresh-tubers-of-dioscorea-bulbifera
#5
Jin-Song Liu, Wei-Na Gao, Juan Zheng, Guo-Kai Wang, Qing-Shan Yang
Eighteen compounds were isolated from the 95% ethanol extract of fresh tubers of Dioscorea bulbifera by column chromatography over silica gel,Sephadex LH-20, and ODS. Their structures were elucidated by spectroscopic data analysis as 6-hydroxy-2,10,10-trimethoxy-anthracen-9-one(1), diosgenin (2), stigmasterol(3), 3, 7-dimethoxy-5, 3', 4'-trihydroxyflavone(4), 2, 7-dihydroxy-3, 4-dimethoxyphenanthrene(5), 3, 7-dihydroxy-2, 4-dimethoxy phenanthrene(6), 2, 7-dihydroxy-4-methoxyphenanthrene (7), 2, 7-dihydroxy-3, 4-dimethoxy-9, 10-dihydroxy phenanthrene(8), azelaic acid (9), 8-epidiosbulbin E acetate (10), 1, 7-bis-(4-hydroxyphenyl)-4E, 6E-heptadien-3-one(11), diosbulbin B(12), pentacosanoic acid 2', 3'-dihydroxypropyl ester(13), 2, 7-dihydroxy-4-methoxy-9, 10-dihydroxy-phenanthrene (14), 1, 7-bis-(4-hydroxyphenyl)-1E, 4E, 6E-heptatrien-3-one (15), 6-ethoxy-1H-pyrimidine-2, 4-dione (16), 3, 5, 4'-trihydroxy-bibenzyl (17), and diosbulbin F (18)...
February 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28950768/induction-of-plant-disease-resistance-upon-treatment-with-yeast-cell-wall-extract
#6
Takaomi Yaguchi, Tomohisa Kinami, Tetsuya Ishida, Takaomi Yasuhara, Kosaku Takahashi, Hideyuki Matsuura
It has been reported that treatment with yeast cell wall extract (YCWE) induces PDF1 and PR-1 gene expression; these transcripts are important markers of plant disease resistance, though the detailed signaling mechanisms that induce these defense responses are still unknown. In this report, we found that YCWE treatment triggered rice cell suspension cultures to accumulate phenylalanine (Phe), cis-12-oxo-phytodienoic acid (OPDA), 12-hydroxyjasmonoyle isoleucine (12OHJA-Ile), and azelaic acid (AzA). YCWE treatment also reduced endogenous triacylglycerol (TG) content...
November 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28932125/an-empirically-generated-responder-definition-for-rosacea-treatment
#7
Gerald Staedtler, Kaweh Shakery, Jan Endrikat, Richard Nkulikiyinka, Christoph Gerlinger
OBJECTIVE: The aim of this study was to empirically generate a responder definition for the treatment of papulopustular rosacea. METHODS: A total of 8 multicenter clinical studies on patients with papulopustular facial rosacea were analyzed. All patients were treated with azelaic acid and/or comparator treatments. The severity of rosacea was described by the Investigator Global Assessment (IGA) and the number of lesions. Patients with the IGA score of "clear/minimal" were considered as responders, and those staying in the range of IGA "mild to severe" as nonresponders...
2017: Clinical, Cosmetic and Investigational Dermatology
https://www.readbyqxmd.com/read/28927457/p53-key-conductor-of-all-anti-acne-therapies
#8
REVIEW
Bodo C Melnik
This review based on translational research predicts that the transcription factor p53 is the key effector of all anti-acne therapies. All-trans retinoic acid (ATRA) and isotretinoin (13-cis retinoic acid) enhance p53 expression. Tetracyclines and macrolides via inhibiting p450 enzymes attenuate ATRA degradation, thereby increase p53. Benzoyl peroxide and hydrogen peroxide elicit oxidative stress, which upregulates p53. Azelaic acid leads to mitochondrial damage associated with increased release of reactive oxygen species inducing p53...
September 19, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28845671/polyamide-polyamine-cryptand-as-dicarboxylate-receptor-dianion-binding-studies-in-the-solid-state-in-solution-and-in-the-gas-phase
#9
Sourav Chakraborty, Subrata Saha, Luís M P Lima, Ulrike Warzok, Sayan Sarkar, Bidyut Akhuli, Mandira Nandi, Somnath Bej, Nayarassery N Adarsh, Christoph A Schalley, Rita Delgado, Pradyut Ghosh
Polyamide-polyamine hybrid macrobicycle L is explored with respect to its ability to bind α,ω-dicarboxylate anions. Potentiometric studies of protonated L with the series of dianions from succinate (suc(2-)) through glutarate (glu(2-)), α-ketoglutarate (kglu(2-)), adipate (adi(2-)), pimelate (pim(2-)), suberate (sub(2-)), to azelate (aze(2-)) have shown adipate preference with association constant value of K = 4900 M(-1) in a H2O/DMSO (50:50 v/v) binary solvent mixture. The binding constant increases from glu(2-) to adi(2-) and then continuously decreases with the length of the anion chain...
September 12, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28837365/oxymetazoline-hydrochloride-cream-for-facial-erythema-associated-with-rosacea
#10
REVIEW
Nupur U Patel, Shweta Shukla, Jessica Zaki, Steven R Feldman
Rosacea is a chronic skin condition characterized by transient and persistent erythema of the central face. The symptom of persistent erythema can be particularly frustrating for both patients and physicians as it is difficult to treat. Areas covered: Current treatment options for the treatment of rosacea include metronidazole, azelaic acid, sodium sulfacetamide-sulfur, and brimonidine. Until recently, brimonidine gel was the only option approved specifically for the treatment of facial erythema. However, oxymetazoline hydrochloride 1% cream is a newly FDA approved topical medication for adult rosacea patients...
October 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28819124/long-term-2001-2013-observations-of-water-soluble-dicarboxylic-acids-and-related-compounds-over-the-western-north-pacific-trends-seasonality-and-source-apportionment
#11
Suresh K R Boreddy, Kimitaka Kawamura, Eri Tachibana
To better understand the impact of East Asian pollutants on the molecular composition of marine organic aerosols, we conducted long-term (2001-2013) observations of water-soluble dicarboxylic acids and related compounds in total suspended particulate samples collected at Chichijima Island in the western North Pacific (WNP). Seasonal variations of all the diacids and related compounds showed maxima in winter and spring and minima in summer, except for azelaic acid (C9), which maximized in summer to autumn. The overall annual concentrations of the total diacids, ω-oxoacids and α-dicarbonyls showed an increase during 2001-2013...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28728857/-rosacea-new-data-for-better-care
#12
B Cribier
In the last 10 years, numerous studies have been published that throw new light on rosacea, in all areas of the disease. This overview summarises all the key developments, based on the indexed bibliography appearing in Medline between 2007 and 2017. Recent epidemiological data show that the prevalence of the disease is doubtless greater than estimated hitherto (more than 10% of adults in some countries) and that we should not overlook rosacea in subjects with skin phototypes V or VI, a condition that exists on all continents...
August 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28686770/the-efficacy-and-safety-of-azelaic-acid-15-foam-in-the-treatment-of-truncal-acne-vulgaris
#13
Lauren K Hoffman, James Q Del Rosso, Leon H Kircik
<p>INTRODUCTION: Truncal acne is often associated with facial acne, but there are fewer options for an effective topical treatment on the trunk. Given the advent of foam formulations with enhanced percutaneous absorption and convenient application due to easy spreadability on skin, the previously held idea that effective treatment of truncal acne requires oral treatment is challenged. Azelaic acid cream has been previously approved for acne vulgaris, thus azelaic acid foam may be a viable treatment option for truncal acne...
June 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28659796/azelaic-acid-exerts-antileukemic-activity-in-acute-myeloid-leukemia
#14
Yunbao Pan, Dong Liu, Yongchang Wei, Dan Su, Chenyang Lu, Yanchao Hu, Fuling Zhou
Acute myeloid leukemia (AML) is an acute leukemia common in most adults; its prevalence intensifies with age. The overall survival of AML is very poor because of therapeutic resistance. Azelaic acid (AZA) is non-toxic, non-teratogenic, and non-mutagenic and its antitumor effect on various tumor cells is well established; Nonetheless, its therapeutic effects in AML cells are largely unknown. In this study, it was shown that AZA significantly inhibits the cell viability and induces apoptosis in AML cells in a dose-dependent manner...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28626508/rate-of-adverse-events-and-healthcare-costs-associated-with-the-topical-treatment-of-rosacea
#15
Todd Williamson, Rajesh Kamalakar, Augustina Ogbonnaya, Erin A Zagadailov, Michael Eaddy, Charlie Kreilick
BACKGROUND: Rosacea is a condition more common in women than in men, and in people aged ≥30 years than in younger patients. Adverse events associated with the use of topical medications for rosacea may lead to a lack of treatment adherence. Previous studies have reported low treatment adherence rates among patients with rosacea. OBJECTIVE: To describe the rate of treatment discontinuation resulting from adverse events and the associated healthcare costs among patients with rosacea who are receiving a topical medication...
May 2017: American Health & Drug Benefits
https://www.readbyqxmd.com/read/28624318/differential-urinary-metabolites-related-with-the-severity-of-major-depressive-disorder
#16
Jian-Jun Chen, Chan-Juan Zhou, Peng Zheng, Ke Cheng, Hai-Yang Wang, Juan Li, Li Zeng, Peng Xie
Major depressive disorder (MDD) is a common mental disorder that affects a person's general health. However, there is still no objective laboratory test for diagnosing MDD. Here, an integrated analysis of data from our previous studies was performed to identify the differential metabolites in the urine of moderate and severe MDD patients. A dual platform approach (NMR spectroscopy and GC-MS) was used. Consequently, 14 and 22 differential metabolites responsible for separating moderate and severe MDD patients, respectively, from their respective healthy controls (HCs) were identified...
June 15, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28536145/monoterpenes-support-systemic-acquired-resistance-within-and-between-plants
#17
Marlies Riedlmeier, Andrea Ghirardo, Marion Wenig, Claudia Knappe, Kerstin Koch, Elisabeth Georgii, Sanjukta Dey, Jane E Parker, Jörg-Peter Schnitzler, A Corina Vlot
This study investigates the role of volatile organic compounds in systemic acquired resistance (SAR), a salicylic acid (SA)-associated, broad-spectrum immune response in systemic, healthy tissues of locally infected plants. Gas chromatography coupled to mass spectrometry analyses of SAR-related emissions of wild-type and non-SAR-signal-producing mutant plants associated SAR with monoterpene emissions. Headspace exposure of Arabidopsis thaliana to a mixture of the bicyclic monoterpenes α-pinene and β-pinene induced defense, accumulation of reactive oxygen species, and expression of SA- and SAR-related genes, including the SAR regulatory AZELAIC ACID INDUCED1 (AZI1) gene and three of its paralogs...
June 2017: Plant Cell
https://www.readbyqxmd.com/read/28360967/azelaic-acid-topical-formulations-differentiation-of-15-gel-and-15-foam
#18
REVIEW
James Q Del Rosso
In this article, the author reviews topical formulations of azelaic acid used to treat papulopustular rosacea. Emphasis is placed on differences in vehicle technology and potential clinical impact of the possibility for neurosensory cutaneous tolerability reactions.
March 2017: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/28358185/lasers-in-the-treatment-of-acne
#19
Marina Perper, John Tsatalis, Ariel E Eber, Jessica Cervantes, Keyvan Nouri
Acne is a chronic disease of the pilosebaceous units, presenting as inflammatory or noninflammatory lesions, affecting primarily the face but also the back and chest. The mainstay of treatment remains topical retinoids, benzoyl peroxide, azelaic acid, antibiotics, and isotretinoin, many of which result in poor compliance, lack of durable remission, and incur adverse effects. The use of lasers to treat acne is continuously increasing because of their minimal complications, limited number of office-based treatments required, potential benefits of simultaneously treating acne scarring, and the rapid onset of results...
March 28, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28304135/transport-of-chemical-signals-in-systemic-acquired-resistance
#20
Archana Singh, Gah-Hyun Lim, Pradeep Kachroo
Systemic acquired resistance (SAR) is a form of broad-spectrum resistance induced in response to local infections that protects uninfected parts against subsequent secondary infections by related or unrelated pathogens. SAR signaling requires two parallel branches, one regulated by salicylic acid (SA), and the other by azelaic acid (AzA) and glycerol-3-phosphate (G3P). AzA and G3P function downstream of the free radicals nitric oxide (NO) and reactive oxygen species (ROS). During SAR, SA, AzA and G3P accumulate in the infected leaves, but only a small portion of these is transported to distal uninfected leaves...
May 2017: Journal of Integrative Plant Biology
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