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https://www.readbyqxmd.com/read/28645755/microwave-assisted-micellar-extraction-of-organic-and-inorganic-iodines-using-zwitterionic-surfactants
#1
Shu-Ling Wang, Ling Yi, Li-Hong Ye, Jun Cao, Li-Jing Du, Li-Qing Peng, Jing-Jing Xu, Qi-Dong Zhang
Zwitterionic surfactant, used as extractant in microwave-assisted extraction (MAE) was investigated for the first time to extract organic and inorganic iodines from kelp samples. Optimized conditions for the MAE were 200W of microwave irradiation power, 100°C of extraction temperature, 10min of microwave irradiation time, 1g of sample, and 20mL of solvent volume. Ultrahigh-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF/MS) was used for the quantitative and qualitative analyses of the iodines...
June 17, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28644529/reciprocal-cooperation-of-phytochemicals-and-micronutrients-against-typical-and-atypical-forms-of-borrelia-spp
#2
Anna Goc, Alexandra Niedzwiecki, Matthias Rath
AIMS: Borrelia spp., a causative pathogenic factor of Lyme disease, has become a major public health threat. Current treatments based on antibiotics often lead to relapse after their withdrawal. Naturally derived substances that could work synergistically to display higher efficacy compared to the individual components may serve as a resource for the development of novel approaches to combat both active and latent forms of Borrelia spp. METHODS AND RESULTS: Using checkerboard assay, we investigated the anti-borreliae reciprocal cooperation of phytochemicals and micronutrients against two species of Borrelia selected as prevalent causes of Lyme disease in the US and Europe...
June 23, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28643231/demodex-blepharitis-treated-with-a-novel-dilute-povidone-iodine-and-dmso-system-a-case-report
#3
Jesse S Pelletier, Kara Capriotti, Kevin S Stewart, Joseph A Capriotti
INTRODUCTION: Povidone-iodine aqueous solution is an antiseptic commonly used in ophthalmology for treatment of the ocular surface. Dimethylsulfoxide (DMSO) is a well-known skin penetration enhancer that is scarcely utilized in ophthalmic drug formulations. We describe here a low-dose formulation of 0.25% PVP-I in a gel containing DMSO for the treatment of Demodex blepharitis. CASE REPORT: A 95-year-old female presented with chronic blepharitis involving both the anterior and posterior eyelid margins...
June 22, 2017: Ophthalmology and Therapy
https://www.readbyqxmd.com/read/28643098/-importance-of-wound-irrigation-solutions-and-fluids-with-antiseptic-effects-in-therapy-and-prophylaxis-update-2017
#4
REVIEW
Christian Willy, Catharina Scheuermann-Poley, Marcus Stichling, Thomas von Stein, Axel Kramer
INTRODUCTION: Despite the use of modern antibiotics as well as complex perioperative, intraoperative and postoperative prophylactic measures, the rate of surgical site infections (SSI) could not be significantly reduced. The introduction of biocompatible antiseptic drugs with a high microbiocidal effect provided a successful alternative for infection prevention and therapy, particularly in a time of increasing occurrence of multi-drug resistant pathogens. Hence, questions about the risk-benefit ratio of antiseptic wound irrigation solutions, the prophylactic use of wound irrigation solutions for the reduction of SSI and the effect of negative pressure wound therapy combined with instillation (NPWTi) need to be answered...
June 22, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28643058/prospective-randomized-comparison-of-the-use-of-floshield-air-system-%C3%A2-versus-the-reference-technique-water%C3%A2-%C3%A2-povidone-iodine-solution-during-gynecologic-endoscopic-surgery-to-evaluate-the-operative-lens-vision-quality
#5
S Bendifallah, E Salakos, I Naoura, P Aristizabal, E Furet, S Zilberman, M Ballester, E Darai
BACKGROUND: The FloShield Air System(®) is a new device for laparoscopic surgery that utilizes a continuous dry CO2 gas flow over the scope to defog the lens and protect it from condensation, debris and smoke. We set out to compare the performance and efficiency of the device in terms of operative lens vision quality (OLVQ) with the reference technique (water + povidone-iodine (PVI) solution) during gynecologic laparoscopic surgery. MATERIALS AND METHODS: We conducted a single-center randomized prospective study between March and June 2016 (Trials Database Registration NCT02702531) including 53 patients undergoing gynecologic laparoscopic surgery with water + PVI solution and 51 patients who underwent surgical procedures with the FloShield Air System...
June 22, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28642116/contrast-induced-nephropathy-basic-concepts-pathophysiological-implications-and-prevention-strategies
#6
REVIEW
Charalampos Mamoulakis, Konstantinos Tsarouhas, Irini Fragkiadoulaki, Ioannis Heretis, Martin F Wilks, Demetrios A Spandidos, Christina Tsitsimpikou, Aristides Tsatsakis
Contrast-induced nephropathy (CIN) is reversible acute renal failure observed following administration of iodinated contrast media (CM) during angiographic or other medical procedures such as urography. There are various mechanisms through which CM develop their nephrotoxic effects, including oxidative stress and apoptosis. CIN is a real-life, albeit not very rare, entity. Exact pathophysiology remains obscure and no standard diagnostic criteria apply. The Acute Kidney Injury Network criteria was recently employed but its incidence/clinical significance warrants further clarification based on recent methodological advancements, because most published studies to date were contaminated by bias...
June 19, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28642046/prostate-specific-antigen-percentage-an-early-predictive-tool-after-iodine-125-interstitial-brachytherapy-for-prostate-cancer
#7
Mauro Paoluzzi, Andrea Losa, Valentina Cerboneschi, Caterina Colosimo, Nicola Fontana, Paola Mangili, Marcello Mignogna, Luciano Nava, Valentina Ravaglia
BACKGROUND: After interstitial prostate iodine-125 brachytherapy (BT), prostate-specific antigen (PSA) evolution in time could predict overall biochemical relapse, but, considering the single patient, it is influenced by the presentation PSA amount and by the prostatic volume. It is also challenging to differentiate a PSA bounce from a biochemical relapse. PURPOSE: To determine the usefulness of PSA percentage (PP) defined as the rate between PSA presented by a patient at time "t" and the PSA that the same patient had presented at the time of diagnosis (t0) assumed as 100% in predicting biochemical relapse and in differentiating them from PSA Bounces...
June 19, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28641581/thyrotoxic-and-pheochromocytoma-multisystem-crisis-a-case-report
#8
Kodai Suzuki, Takahito Miyake, Hideshi Okada, Fuminori Yamaji, Yuichiro Kitagawa, Tetsuya Fukuta, Ryu Yasuda, Yoshihito Tanaka, Haruka Okamoto, Sho Nachi, Tomoaki Doi, Takahiro Yoshida, Keisuke Kumada, Shozo Yoshida, Hiroaki Ushikoshi, Izumi Toyoda, Shinji Ogura
BACKGROUND: Thyrotoxic crisis and pheochromocytoma multisystem crisis are rare, life-threatening, emergency endocrine diseases with various clinical manifestations. Here we report a case of a patient who simultaneously developed thyrotoxic crisis and pheochromocytoma multisystem crisis and required intensive cardiovascular management. CASE PRESENTATION: A 60-year-old Asian man experienced nausea and vomiting, and subsequently developed dyspnea and cold sweats while farming...
June 23, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28640217/suboptimal-iodine-concentration-in-breastmilk-and-inadequate-iodine-intake-among-lactating-women-in-norway
#9
Sigrun Henjum, Anne Marie Lilleengen, Inger Aakre, Anna Dudareva, Elin Lovise Folven Gjengedal, Helle Margrete Meltzer, Anne Lise Brantsæter
Breastfed infants depend on sufficient maternal iodine intake for optimal growth and neurological development. Despite this, few studies have assessed iodine concentrations in human milk and there is currently no published data on iodine status among lactating women in Norway. The aim of this study was to assess iodine concentrations in breast milk (BMIC) in lactating women and estimate iodine intake. Five Mother and Child Health Centres in Oslo were randomly selected during 2016, and 175 lactating women between 2nd and 28th weeks postpartum participated...
June 22, 2017: Nutrients
https://www.readbyqxmd.com/read/28640139/a-prisma-compliant-systematic-review-and-meta-analysis-of-the-relationship-between-thyroid-disease-and-different-levels-of-iodine-intake-in-mainland-china
#10
Wanwen Weng, Mengjie Dong, Jun Zhan, Jun Yang, Bo Zhang, Xingdong Zhao
BACKGROUND: Low-iodine intake has historically been an issue in China, causing widespread iodine deficiency diseases (IDD). China started to introduce universal salt iodization in 1995, but reports of increased thyroid disease are a concern and appropriate levels of iodine intake must be considered. OBJECTIVE: To assess the prevalence of thyroid disease with different urinary iodine concentrations (UICs) in the general population of those residing in mainland China...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28640094/effects-of-first-radioiodine-ablation-on-functions-of-salivary-glands-in-patients-with-differentiated-thyroid-cancer
#11
Arun Upadhyaya, Zhaowei Meng, Peng Wang, Guizhi Zhang, Qiang Jia, Jian Tan, Xue Li, Tianpeng Hu, Na Liu, Pingping Zhou, Sen Wang, Xiaoxia Liu, Huiying Wang, Chunmei Zhang, Fengxiao Zhao, Ziyu Yan
The aim of this study was to evaluate the effects of the first radioactive iodine (I) therapy on functions of salivary glands in patients with differentiated thyroid carcinoma (DTC).There were 36 consented patients with DTC enrolled in this study, who received 3.7 GBq (100mCi) I for ablation after total thyroidectomy. Salivary gland function was assessed using salivary gland scintigraphy in two phases, one 4 hours before and the other 6 months after I therapy (both under thyrotropin stimulation condition)...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28639731/size-dependence-of-doping-via-vacancy-formation-in-copper-sulfide-nanocrystals
#12
Orian Elimelech, Jing Liu, Anna M Plonka, Anatoly I Frenkel, Uri Banin
Doping semiconductor nanocrystals (NCs) is a key yet under-explored approach for tuning their electronic properties. An important route for doping in NCs is vacancy formation. Herein, the size and concentration dependence of doping is studied in Cu2S NCs through a redox reaction with iodine leading to vacancy formation accompanied by a localized surface plasmon response. X-ray spectroscopy and diffraction reveal transformation from Cu2S to Cu depleted phases along with CuI formation. Higher efficiency of the reaction is observed for larger NCs...
June 22, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28639634/copper-ii-catalyzed-iodine-promoted-oxidative-cyclization-of-2-amino-1-3-5-triazines-and-chalcones-synthesis-of-aroylimidazo-1-2-a-1-3-5-triazines
#13
Jin Jing Li, Chan Song, Dong-Mei Cui, Chen Zhang
An efficient copper(ii) catalyzed iodine-promoted synthesis of aroylimidazo[1,2-a][1,3,5]triazines from 2-amino-1,3,5-triazines and chalcones under mild conditions has been developed. The reaction occurred with good yields and excellent regioselectivities, and tolerated chalcone containing functionalities such as ethers, halogens, and nitro groups. The successful application of this methodology for a gram-scale reaction indicates its potential for bulk synthesis.
June 22, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28638832/the-response-of-macro-and-micronutrient-nutrient-status-and-biochemical-processes-in-rats-fed-on-a-diet-with-selenium-enriched-defatted-rapeseed-and-or-vitamin-e-supplementation
#14
Michaela Rýdlová, Karolína Růnová, Jiřina Száková, Alena Fučíková, Anna Hakenová, Petr Mlejnek, Václav Zídek, Jana Tremlová, Oto Mestek, Antonín Kaňa, Jarmila Zídková, Magdalena Melčová, Klára Truhlářová, Pavel Tlustoš
The response of nutrient status and biochemical processes in (i) Wistar and (ii) spontaneously hypertensive (SHR) rats upon dietary intake of selenium- (Se-) enriched defatted rapeseed (DRS) and/or vitamin E fortification was examined to assess the health benefit of DRS in animal nutrition. Twenty-four individuals of each type of rat were used: The control group was fed with an untreated diet (Diet A). In Diets B and C, soybean meal was replaced with defatted DRS, which comprised 14% of the total diet. The selenized DRS application resulted in ~3-fold increase of Se content in the diet...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28638624/kikuchi-fujimoto-disease-a-case-report-of-a-multi-drug-resistant-grueling-disease
#15
Alexey Youssef, Rahaf Ali, Kinan Ali, Zuheir AlShehabi
Histiocytic necrotizing lymphadenitis or Kikuchi-Fujimoto disease (KFD) is characterized by its rare occurrence. Mostly prevalent among Asian women, KFD manifests with lymphadenopathy-affecting mostly cervical and rarely generalized or retroperitoneal regions-in addition to fever. It is a self-limited disease that resolves within 1-4 months, responding remarkably to glucocorticosteroids or hydroxychloroquine. However, some rare cases prove to be unresponsive to the previously mentioned therapies. Here is a description of a case of KFD affecting a 67-year-old Syrian woman with a history of hypothyroidism due to iodine-deficiency...
June 2017: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28638140/imaging-dynamic-fingerprints-of-competing-e2-and-sn2-reactions
#16
Eduardo Carrascosa, Jennifer Meyer, Jiaxu Zhang, Martin Stei, Tim Michaelsen, William L Hase, Li Yang, Roland Wester
The competition between bimolecular nucleophilic substitution and base-induced elimination is of fundamental importance for the synthesis of pure samples in organic chemistry. Many factors that influence this competition have been identified over the years, but the underlying atomistic dynamics have remained difficult to observe. We present product velocity distributions for a series of reactive collisions of the type X(-) + RY with X and Y denoting the halogen atoms fluorine, chlorine and iodine. By increasing the size of the residue R from methyl to tert-butyl in several steps, we find that the dynamics drastically change from backward to dominant forward scattering of the leaving ion relative to the reactant RY velocity...
June 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28637564/do-iodine-impregnated-adhesive-surgical-drapes-reduce-surgical-site-infections-during-open-ventral-hernia-repair-a-comparative-analysis
#17
Neal Moores, Steven Rosenblatt, Ajita Prabhu, Michael Rosen
This study evaluated the role of iodine-impregnated adhesive drapes to reduce surgical site infections and occurrences in open ventral hernia repairs. All patients undergoing open ventral hernia repair of clean wounds with a retromuscular repair using synthetic mesh by a single surgeon were prospectively evaluated from the American Hernia Society Quality Collaborative. Patients were divided into those that had an Ioban drape and those that did not. The primary endpoints of this study were postoperative surgical site occurrence and infections...
June 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28637498/incidence-of-thyroid-dysfunction-in-an-iranian-adult-population-the-predictor-role-of-thyroid-autoantibodies-results-from-a-prospective-population-based-cohort-study
#18
Ashraf Aminorroaya, Rokhsareh Meamar, Massoud Amini, Awat Feizi, Azamosadat Tabatabae, Elham Faghih Imani
BACKGROUND: The prevalence of thyroid dysfunction is high in Isfahan, an area of iodine sufficient in Iran. The aim of this study is to investigate the incidence of thyroid dysfunctions in adults of metropolitan Isfahan and to determine the role of thyroid autoantibodies. METHODS: In a population-based cohort study in 2006-2011, we measured TSH, T4, T3, thyroid peroxidase antibody (TPOAb), and thyroglobulin antibody (TgAb) in 618 out of 2254 people who were euthyroid in 2006...
June 21, 2017: European Journal of Medical Research
https://www.readbyqxmd.com/read/28636376/on-the-mechanism-of-the-iodide-triiodide-exchange-reaction-in-a-solid-state-ionic-liquid
#19
Joás Grossi, Jorge J Kohanoff, Niall J English, Eduardo M Bringa, Mario G Del Pópolo
Efficient charge transport has been observed in iodide-based room-temperature ionic liquids when doped with iodine. To investigate preferred pathways for the iodide (I(-))-to-triiodide (I3(-)) exchange reaction and to clarify the origin of this high ionic conductivity, we have conducted electronic structure calculations in the crystal state of 1-butyl-3-methylimidazolium iodide ([BMIM][I]). Energy barriers for the different stages of the iodine-swapping process, including the reorientation of the I(-)···I3(-) moiety, were determined from minimum energy paths as a function of a reaction coordinate...
June 21, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28636313/iodine-iii-reagents-in-radical-chemistry
#20
Xi Wang, Armido Studer
The chemistry of hypervalent iodine(III) compounds has gained great interest over the past 30 years. Hypervalent iodine(III) compounds show valuable ionic reactivity due to their high electrophilicity but also express radical reactivity as single electron oxidants for carbon and heteroatom radical generation. Looking at ionic chemistry, these iodine(III) reagents can act as electrophiles to efficiently construct C-CF3, X-CF3 (X = heteroatom), C-Rf (Rf = perfluoroalkyl), X-Rf, C-N3, C-CN, S-CN, and C-X bonds...
June 21, 2017: Accounts of Chemical Research
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