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https://www.readbyqxmd.com/read/28918161/clinical-and-pathological-significance-of-cutaneous-manifestations-in-anca-associated-vasculitides
#1
REVIEW
Laure Frumholtz, Sara Laurent-Roussel, Olivier Aumaître, François Maurier, Guillaume Le Guenno, Agnes Carlotti, Alexiane Dallot, Jean Louis Kemeny, Laurent Antunes, Nicolas Froment, Sylvie Fraitag, Jonathan London, Alice Berezne, Benoît Terris, Claire Le Jeunne, Luc Mouthon, Selim Aractingi, Loïc Guillevin, Nicolas Dupin, Benjamin Terrier
OBJECTIVES: Cutaneous manifestations (CM) in ANCA-associated vasculitides (AAV) are frequent, but data on clinical significance and clinical-pathological correlations are lacking. METHODS: We conducted a multicenter, retrospective study including 1553 AAV patients. Clinical, biological and pathological features have been analyzed, and tissue samples from 46 biopsies were reviewed in a blind manner. RESULTS: CM were more frequent in EGPA (53...
September 13, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28917317/hammondia-heydorni-oocyst-shedding-by-dogs-fed-in-vitro-generated-tissue-cysts-and-evaluation-of-cross-immunity-between-h-heydorni-and-neospora-caninum-in-mice
#2
I D S Meneses, G Schares, M M Rezende-Gondim, G S Galvão, L F P Gondim
Hammondia heydorni is a coccidian parasite believed to be nonpathogenic for naturally-infected animals, but it is biologically and genetically related to Neospora caninum, a worldwide cause of abortion in cattle. The major aim of the present work was to determine whether dogs shed H. heydorni oocysts after consuming in vitro generated tissue cysts of the parasite. In addition, we investigated cross-immunity between H. heydorni and N. caninum in mice. Two dogs were fed cultured cells containing tissue cysts of H...
September 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28917009/preparation-characterization-and-in-vitro%C3%A2-%C3%A2-in-vivo-evaluation-of-oral-time-controlled-release-etodolac-pellets
#3
Xiaoyu Zhang, Qi Li, Mingzhu Ye, Zhinan Zhao, Jiayi Sun, Xinggang Yang, Weisan Pan
The objective of this study was to prepare time-controlled release etodolac pellets to facilitate drug administration according to the body's biological rhythm, optimize the drug's desired effects, and minimize adverse effects. The preparation consisted of three laminal layers from center to outside: the core, the swelling layer, and the insoluble polymer membrane. Factors influenced the core and the coating films were investigated in this study. The core pellets formulated with etodolac, lactose, and sodium carboxymethyl starch (CMS-Na) were prepared by extrusion-spheronization and then coated by a fluidized bed coater...
September 15, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28916029/oral-mucosa-biology-and-salivary-biomarkers
#4
Rosie Qin, Andrea Steel, Nasim Fazel
Although the surfaces of both the skin and oral mucosa are protected by squamous epithelial cells and fall within the scope of dermatologic practice, the oral cavity contains highly specialized structures and functions distinct from other skin biology and pathologic conditions and are also the purview of clinicians who care for patients with skin and mucosal diseases. We describe the distinct features of the tongue, mucosa, and salivary glands. In particular, we examine the composition and function of the saliva, with special focus on salivary biomarkers...
September 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/28915830/biological-effects-of-combined-resveratrol-and-vitamin-d3-on-ovarian-tissue
#5
Francesca Uberti, Vera Morsanuto, Silvio Aprile, Sabrina Ghirlanda, Ian Stoppa, Andrea Cochis, Giorgio Grosa, Lia Rimondini, Claudio Molinari
BACKGROUND: Resveratrol (3,5,4'-trihydroxy-trans-stilbene) is a natural antioxidant polyphenol able to exert a wide range of biological effect on several tissues. Despite its important beneficial properties, it has a low water solubility, which limits its therapeutic applications in humans. Resveratrol also acts as a phytoestrogen that modulates estrogen receptor (ER)-mediated transcription. In addition, it has been shown that ovarian tissues benefit greatly from vitamin D3, which exerts its beneficial effects through VDR receptors...
September 15, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28915419/sensitivity-improvement-of-the-lc-ms-ms-quantification-of-carbidopa-in-human-plasma-and-urine-by-derivatization-with-2-4-pentanedione
#6
Nico C van de Merbel, Kees J Bronsema, Steven H Gorman, Ray Bakhtiar
The reliable quantification of carbidopa in biological samples at low concentrations is challenging because of the polar and highly unstable nature of the compound. In this paper, LC-MS/MS methods are described for the determination of carbidopa in 50μL of human plasma and 25μL of human urine in the concentration ranges 1-1,000ng/mL and 100-50,000ng/mL, respectively. After a simple protein precipitation (plasma) or dilution (urine) step, carbidopa is derivatized at its hydrazine moiety by reaction for one hour with 2,4-pentanedione under acidic conditions and at 40°C...
September 8, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28913687/non-atherosclerotic-vascular-disease-in-women
#7
REVIEW
Lee Joseph, Esther S H Kim
Takayasu arteritis, fibromuscular dysplasia (FMD), spontaneous arterial dissection, Raynaud's phenomenon, and chilblains are vascular conditions that are associated with an increased predisposition in women and are often underdiagnosed. Takayasu arteritis has an incidence rate of 2.6 cases per million individuals per year in the USA and predominantly affects women of childbearing age. HLA-B5 genetic locus is linked with Takayasu arteritis susceptibility. Methods to determine active disease are limiting; currently utilized clinical and imaging findings and laboratory tests are of limited value for this purpose...
September 14, 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28911633/an-analysis-method-for-flavan-3-ols-using-high-performance-liquid-chromatography-coupled-with-a-fluorescence-detector
#8
Liuqing Wang, Yoko Yamashita, Akiko Saito, Hitoshi Ashida
Procyanidins belong to a family of flavan-3-ols, which consist of monomers, (+)-catechin and (-)-epicatechin, and their oligomers and polymers, and are distributed in many plant-derived foods. Procyanidins are reported to have many beneficial physiological activities, such as antihypertensive and anticancer effects. However, the bioavailability of procyanidins is not well understood owing to a lack of convenient and high-sensitive analysis methods. The aim of this study was to develop an improved method for determining procyanidin content in both food materials and biological samples...
July 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28911536/biopharmaceutical-potentials-of-prosopis-spp-mimosaceae-leguminosa
#9
REVIEW
Santhaseelan Henciya, Prabha Seturaman, Arthur Rathinam James, Yi-Hong Tsai, Rahul Nikam, Yang-Chang Wu, Hans-Uwe Dahms, Fang Rong Chang
Prosopis is a commercially important plant genus, which has been used since ancient times, particularly for medicinal purposes. Traditionally, Paste, gum, and smoke from leaves and pods are applied for anticancer, antidiabetic, anti-inflammatory, and antimicrobial purposes. Components of Prosopis such as flavonoids, tannins, alkaloids, quinones, or phenolic compounds demonstrate potentials in various biofunctions, such as analgesic, anthelmintic, antibiotic, antiemetic, microbial antioxidant, antimalarial, antiprotozoal, antipustule, and antiulcer activities; enhancement of H(+), K(+), ATPases; oral disinfection; and probiotic and nutritional effects; as well as in other biopharmaceutical applications, such as binding abilities for tablet production...
January 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28911037/a-biologically-conjugated-polysaccharide-vaccine-delivered-by-attenuated-salmonella-typhimurium-provides-protection-against-challenge-of-avian-pathogenic-escherichia-coli-o1-infection
#10
Yue Han, Qing Liu, Jie Yi, Kang Liang, Yunan Wei, Qingke Kong
Avian pathogenic Escherichia coli (APEC) causes avian airsacculitis and colibacillosis, resulting in significant economic loss to the poultry industry. O1, O2 and O78 are the three predominant serotypes. O-antigen of lipopolysaccharide is serotype determinant and highly immunogenic, and O-antigen polysaccharide-based vaccines have great potential for preventing bacterial infections. In this study, we utilized a novel yeast/bacterial shuttle vector pSS26 to clone the 10.8 kb operon synthesizing APEC O1 O-antigen polysaccharide...
November 30, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28906290/safety-considerations-with-the-use-of-corticosteroids-and-biologic-therapies-in-mild-to-moderate-ulcerative-colitis
#11
Raymond K Cross
BACKGROUND: The risk of corticosteroid-associated adverse events can limit the use of systemic corticosteroids. Oral, topically acting, second-generation corticosteroids that deliver drug to the site of inflammation, and biologic therapies, are effective treatment alternatives. The aim of this review was to evaluate the safety and tolerability of topically acting corticosteroids and biologic therapies versus oral systemic corticosteroids for ulcerative colitis (UC). METHODS: The PubMed database was searched for clinical and observational trials, systematic reviews, and case reports/series published between January 1950 and September 30, 2016...
October 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28903991/biology-and-etiology-of-young-onset-breast-cancers-among-premenopausal-african-american-women-results-from-the-amber-consortium
#12
Lynn Chollet-Hinton, Andrew F Olshan, Hazel B Nichols, Carey K Anders, Jennifer L Lund, Emma H Allott, Traci N Bethea, Chi-Chen Hong, Stephanie M Cohen, Thaer Khoury, Gary R Zirpoli, Virginia F Borges, Lynn A Rosenberg, Elisa V Bandera, Christine B Ambrosone, Julie R Palmer, Melissa A Troester
BACKGROUND: African American (AA) women have higher incidence of aggressive, young-onset (<40 years) breast cancers. Young- and older-onset disease may have distinct tumor biologies and etiologies; however, studies investigating age differences among AA women have been rare and generally underpowered. METHODS: We examined tumor characteristics and breast cancer risk factors associated with premenopausal young (<40) vs. older (≥40) AA women's breast cancer in the African American Breast Cancer Epidemiology and Risk Consortium (2,008 cases and 5,144 controls)...
September 13, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28903499/the-long-lasting-rodenticide-brodifacoum-induces-neuropathology-in-adult-male-rats
#13
Sergey Kalinin, Natalia Marangoni, Katarzyna Kowal, Arunangsu Dey, Kinga Lis, Sergey Brodsky, Richard van Breemen, Zane Hauck, Richard Ripper, Israel Rubinstein, Guy Weinberg, Douglas L Feinstein
Superwarfarins are very long-lasting rodenticides effective in warfarin-resistant rodents at extremely low doses. The consequences of chronic superwarfarin levels in tissues, due to biological half-lives on the order of 20 days, have not been examined. We now characterized the neurological effects of brodifacoum (BDF), one of the most widely used superwarfarins, in adult male Sprague Dawley rats. Dosing curves established the acute oral lethal dose for BDF as 221 ± 14 μg/kg. Measurement of tissue BDF levels showed accumulation throughout the body, including the central nervous system, with levels diminishing over several days...
September 1, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28903179/antinociceptive-anti-inflammatory-and-anxiolytic-like-effects-of-the-ethanolic-extract-fractions-and-hibalactone-isolated-from-hydrocotyle-umbellata-l-acari%C3%A3-oba-araliaceae
#14
Thiago Levi Silva Oliveira, Sandra Ribeiro de Morais, Stone de Sá, Matheus Gabriel de Oliveira, Iziara Ferreira Florentino, Dayane Moreira da Silva, Verônica Vale Carvalho, Vinícius Barreto da Silva, Boniek Gontijo Vaz, José Ricardo Sabino, Elson Alves Costa, José Realino de Paula
Hydrocotyle umbellata Linn. (Araliaceae) is specie used in the treatment of inflammatory diseases. Crude extract (E-HU) was prepared from H. umbellata subterraneous parts and fractionated by liquid-liquid partition, resulting hexane fraction (HF-HU), dichloromethane fraction (DF-HU), ethyl acetate fraction (EAF-HU) and aqueous fraction (AF-HU). The hibalactone (HU-1) was isolated from the DF-HU and its structure was elucidated by (1)H NMR and (13)C NMR Spectroscopy, mass spectrometry and crystallographic x-ray analysis...
September 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28903025/experimental-neospora-caninum-infection-in-chickens-gallus-gallus-domesticus-with-oocysts-and-tachyzoites-of-two-recent-isolates-reveals-resistance-to-infection
#15
Solange Oliveira, Juliana Aizawa, Herbert Sousa Soares, Daniela Pontes Chiebao, Márcio Botelho de Castro, Aline S Hora, Marcos Gomes Lopes, Gereon Schares, Mark C Jenkins, Oliver C H Kwok, Ricardo Augusto Dias, Solange Maria Gennari, Jitender P Dubey, Hilda Fátima Jesus Pena
The importance of birds in the biological cycle of Neospora caninum is not clear. We report unsuccessful Neospora infection in chickens (Gallus gallus domesticus) using two isolates of N. caninum. In experiment #1, 30 White Leghorn chickens were orally inoculated with viable N. caninum oocysts (NC-SP1 isolate, 200 oocysts per bird) via the crop at 21 days of age. Groups of three birds were euthanized at intervals of 7 days (a total of 9 weeks) and one group was challenged with the same oocyst dose at 37 days p...
September 10, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28902489/oral-sirna-delivery-to-treat-colorectal-liver-metastases
#16
Sung Hun Kang, Vishnu Revuri, Sang-Joon Lee, Sungpil Cho, In-Kyu Park, Kwang Jae Cho, Woo Kyun Bae, Yong-Kyu Lee
Convenient multiple dosing makes oral administration an ideal route for delivery of therapeutic siRNA. However, hostile GI environments and non-specific biological trafficking prevent from achieving appropriate bioavailability of siRNA. Here, an orally administered AuNP-siRNA-glycol chitosan-taurocholic acid nanoparticle (AR-GT NPs), was developed to selectively deliver Akt2 siRNA and treat colorectal liver metastases (CLM). AR-GT NPs are dual padlocked non-viral vectors in which the initially formed AuNP-siRNA (AR) conjugates are further encompassed by bifunctional glycol chitosan-taurocholic acid (GT) conjugates...
September 13, 2017: ACS Nano
https://www.readbyqxmd.com/read/28901254/therapeutics-and-immunoprophylaxis-against-noroviruses-and-rotaviruses
#17
Souvik Ghosh, Yashpal Singh Malik, Nobumichi Kobayashi
Noroviruses and rotaviruses are important viral etiologies of severe gastroenteritis. Noroviruses are the primary cause of non-bacterial diarrheal outbreaks in humans, whilst rotaviruses are a major cause of childhood diarrhea. Although both enteric pathogens substantially impact human health and economies, there are no approved drugs against noroviruses and rotaviruses, so far. On the other hand, whilst the currently licensed rotavirus vaccines have been successfully implemented in over 100 countries, the most advanced norovirus vaccine has recently completed phase-I and II trials...
September 12, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28900429/plasma-derived-polyreactive-secretory-like-iga-and-igm-opsonizing-salmonella-enterica-typhimurium-reduces-invasion-and-gut-tissue-inflammation-through-agglutination
#18
Gilles Bioley, Justine Monnerat, Marius Lötscher, Cédric Vonarburg, Adrian Zuercher, Blaise Corthésy
Due to the increasing emergence of antibiotic-resistant strains of enteropathogenic bacteria, development of alternative treatments to fight against gut infections is a major health issue. While vaccination requires that a proper combination of antigen, adjuvant, and delivery route is defined to elicit protective immunity at mucosae, oral delivery of directly active antibody preparations, referred to as passive immunization, sounds like a valuable alternative. Along the gut, the strategy suffers, however, from the difficulty to obtain sufficient amounts of antibodies with the appropriate specificity and molecular structure for mucosal delivery...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28900017/omega-3-fatty-acids-and-inflammatory-processes-from-molecules-to-man
#19
REVIEW
Philip C Calder
Inappropriate, excessive or uncontrolled inflammation contributes to a range of human diseases. Inflammation involves a multitude of cell types, chemical mediators and interactions. The present article will describe nutritional and metabolic aspects of omega-6 (n-6) and omega-3 (n-3) fatty acids and explain the roles of bioactive members of those fatty acid families in inflammatory processes. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are n-3 fatty acids found in oily fish and fish oil supplements...
September 12, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/28899817/acute-oral-toxicity-study-of-magnesium-oxide-nanoparticles-and-microparticles-in-female-albino-wistar-rats
#20
Bhanuramya Mangalampalli, Naresh Dumala, Paramjit Grover
Advancements in nanotechnology have led to the development of the nanomedicine, which involves nanodevices for diagnostic and therapeutic purposes. A key requirement for the successful use of the nanoparticles (NPs) in biomedical applications is their good dispensability, colloidal stability in biological media, internalization efficiency, and low toxicity. Therefore, toxicological profiling is necessary to understand the mechanism of NPs and microparticles (MPs). MgO NPs have attracted wide scientific interest due to ease of synthesis, chemical stability and unique properties...
September 9, 2017: Regulatory Toxicology and Pharmacology: RTP
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