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The role of iodine

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https://www.readbyqxmd.com/read/28644529/reciprocal-cooperation-of-phytochemicals-and-micronutrients-against-typical-and-atypical-forms-of-borrelia-spp
#1
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/28637564/do-iodine-impregnated-adhesive-surgical-drapes-reduce-surgical-site-infections-during-open-ventral-hernia-repair-a-comparative-analysis
#2
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
#3
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/28635633/new-insights-in-thyroid-cancer-and-p53-family-proteins
#4
REVIEW
Livia Manzella, Stefania Stella, Maria Stella Pennisi, Elena Tirrò, Michele Massimino, Chiara Romano, Adriana Puma, Martina Tavarelli, Paolo Vigneri
Thyroid cancers are common endocrine malignancies that comprise tumors with different clinical and histological features. Indeed, papillary and follicular thyroid cancers are slow-growing, well-differentiated tumors, whereas anaplastic thyroid cancers are undifferentiated neoplasias that behave much more aggressively. Well-differentiated thyroid carcinomas are efficiently cured by surgery and radioiodine, unlike undifferentiated tumors that fail to uptake radioactive iodine and are usually resistant to chemotherapy...
June 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28633507/digenic-duox1-and-duox2-mutations-in-cases-with-congenital-hypothyroidism
#5
Zehra Aycan, Hakan Cangul, Marina Muzza, Veysel N Bas, Laura Fugazzola, V Krishna Chatterjee, Luca Persani, Nadia Schoenmakers
Context: The DUOX2 enzyme generates hydrogen peroxide (H2O2), a crucial electron acceptor for the TPO-catalyzed iodination and coupling reactions mediating thyroid hormone biosynthesis. DUOX2 mutations result in dyshormonogenetic Congenital Hypothyroidism (CH) which may be phenotypically heterogeneous, leading to the hypothesis that CH severity may be influenced by environmental factors (eg dietary iodine) and oligogenic modifiers (eg variants in the homologous NADPH-oxidase DUOX1). However, loss of function mutations in DUOX1 have not hitherto been described and its role in thyroid biology remains undefined...
June 16, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28627816/spectrophotometric-determination-of-selenium-through-triiodide-anion
#6
Otilia Bizerea-Spiridon, Radu Nartita, Alexandru F Rogobete, Adina Negrea, Ramona Stroescu, Teofana O Bizerea, Constantin Ilie, Otilia Marginean
BACKGROUND: Selenium is a chemical element found in the human body that plays a crucial role in its regulation. Depending on the concentration, it may have beneficial or have toxic effects. Selenium is incorporated as selenocysteine amino acid residue in selenoproteins which play an important role in many biological functions: anti-oxidant defense, regulation of the immune function and of the inflammatory response, metabolism of thyroid hormones, functioning of the central nervous system, biosynthesis of DNA and RNA, fertility, and reproduction...
May 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28620496/growth-hormone-and-insulin-like-growth-factor-1-affect-the-severity-of-graves-disease
#7
Alfredo Di Cerbo, Federica Pezzuto, Alessandro Di Cerbo
Graves' disease, the most common form of hyperthyroidism in iodine-replete countries, is associated with the presence of immunoglobulins G (IgGs) that are responsible for thyroid growth and hyperfunction. In this article, we report the unusual case of a patient with acromegaly and a severe form of Graves' disease. Here, we address the issue concerning the role of growth hormone (GH) and insulin-like growth factor 1 (IGF1) in influencing thyroid function. Severity of Graves' disease is exacerbated by coexistent acromegaly and both activity indexes and symptoms and signs of Graves' disease improve after the surgical remission of acromegaly...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28618195/novel-reductive-dehalogenases-from-the-marine-sponge-associated-bacterium-desulfoluna-spongiiphila
#8
Jie Liu, Nora Lopez, Young-Beom Ahn, Tatyana Goldberg, Yana Bromberg, Lee J Kerkhof, Max M Häggblom
Desulfoluna spongiiphila strain AA1 is an organohalide respiring bacterium, isolated from the marine sponge Aplysina aerophoba, that can use brominated and iodinated phenols, in addition to sulfate and thiosulfate as terminal electron acceptors. The genome of Desulfoluna spongiiphila strain AA1 is approximately 6.5 Mb. Three putative reductive dehalogenase (rdhA) genes involved in respiratory metabolism of organohalides were identified within the sequence. Conserved motifs found in respiratory reductive dehalogenases (a twin arginine translocation signal sequence and two iron-sulfur clusters) were present in all three putative AA1 rdhA genes...
June 15, 2017: Environmental Microbiology Reports
https://www.readbyqxmd.com/read/28605190/a-role-for-pd-iv-in-catalytic-enantioselective-c-h-functionalization-with-monoprotected-amino-acid-ligands-under-mild-conditions
#9
R Erik Plata, David E Hill, Brandon E Haines, Djamaladdin G Musaev, Ling Chu, David P Hickey, Matthew S Sigman, Jin-Quan Yu, Donna G Blackmond
Kinetic and mechanistic studies of the desymmetrization of benzhydrylamine using Pd/monoprotected amino acid ligands (Pd/MPAA) via C-H functionalization with molecular iodine provide mechanistic insight into the rate-determining step and the oxidation state of Pd in the C-H functionalization step. Intriguingly, C-H bond breaking does not occur prior to the addition of I2 to the reaction mixture. Electrochemical experiments and 19F NMR studies suggest that iodine oxidatively adds to Pd(II) prior to addition of the amine substrate...
June 12, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28603516/iodine-123-meta-iodobenzylguanidine-myocardial-scintigraphy-in-isolated-autonomic-failure-potential-red-flag-for-future-multiple-system-atrophy
#10
Francesca Baschieri, Giovanna Calandra-Buonaura, Annagrazia Cecere, Giorgio Barletta, Manuela Contin, Piero Parchi, Pietro Cortelli
Pure autonomic failure is challenging as it can be the presenting feature of a central nervous system syncleinopathy such as Parkinson's disease (PD) or multiple system atrophy (MSA). Because the prognosis of MSA and PD is so different, predictive features for a possible conversion can be extremely valuable. In this paper, we report three cases (two with autopsy-proven diagnosis) that had isolated AF for many years before converting to MSA or PD. Of all the tests that were performed during the premotor stage, Iodine-123-meta-iodobenzylguanidine (MIBG) myocardial scintigraphy was predictive of the conversion to MSA...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28601007/distribution-and-relevance-of-iodinated-x-ray-contrast-media-and-iodinated-trihalomethanes-in-an-aquatic-environment
#11
Zhifa Xu, Xia Li, Xialin Hu, Daqiang Yin
Distribution and relevance of iodinated X-ray contrast media (ICM) and iodinated disinfection byproducts (I-DBPs) in a real aquatic environment have been rarely documented. In this paper, some ICM were proven to be strongly correlated with I-DBPs through investigation of five ICM and five iodinated trihalomethanes (I-THMs) in surface water and two drinking water treatment plants (DWTPs) of the Yangtze River Delta, China. The total ICM concentrations in Taihu Lake and the Huangpu River ranged from 88.7 to 131 ng L(-1) and 102-252 ng L(-1), respectively...
June 2, 2017: Chemosphere
https://www.readbyqxmd.com/read/28592453/diagnosis-and-management-of-dementia-with-lewy-bodies-fourth-consensus-report-of-the-dlb-consortium
#12
REVIEW
Ian G McKeith, Bradley F Boeve, Dennis W Dickson, Glenda Halliday, John-Paul Taylor, Daniel Weintraub, Dag Aarsland, James Galvin, Johannes Attems, Clive G Ballard, Ashley Bayston, Thomas G Beach, Frédéric Blanc, Nicolaas Bohnen, Laura Bonanni, Jose Bras, Patrick Brundin, David Burn, Alice Chen-Plotkin, John E Duda, Omar El-Agnaf, Howard Feldman, Tanis J Ferman, Dominic Ffytche, Hiroshige Fujishiro, Douglas Galasko, Jennifer G Goldman, Stephen N Gomperts, Neill R Graff-Radford, Lawrence S Honig, Alex Iranzo, Kejal Kantarci, Daniel Kaufer, Walter Kukull, Virginia M Y Lee, James B Leverenz, Simon Lewis, Carol Lippa, Angela Lunde, Mario Masellis, Eliezer Masliah, Pamela McLean, Brit Mollenhauer, Thomas J Montine, Emilio Moreno, Etsuro Mori, Melissa Murray, John T O'Brien, Sotoshi Orimo, Ronald B Postuma, Shankar Ramaswamy, Owen A Ross, David P Salmon, Andrew Singleton, Angela Taylor, Alan Thomas, Pietro Tiraboschi, Jon B Toledo, John Q Trojanowski, Debby Tsuang, Zuzana Walker, Masahito Yamada, Kenji Kosaka
The Dementia with Lewy Bodies (DLB) Consortium has refined its recommendations about the clinical and pathologic diagnosis of DLB, updating the previous report, which has been in widespread use for the last decade. The revised DLB consensus criteria now distinguish clearly between clinical features and diagnostic biomarkers, and give guidance about optimal methods to establish and interpret these. Substantial new information has been incorporated about previously reported aspects of DLB, with increased diagnostic weighting given to REM sleep behavior disorder and (123)iodine-metaiodobenzylguanidine (MIBG) myocardial scintigraphy...
June 7, 2017: Neurology
https://www.readbyqxmd.com/read/28590762/direct-oxidative-cleavage-of-multiple-csp-3-h-bonds-and-a-c-c-bond-in-2-pyridin-2-yl-acetate-derivatives-formal-3-1-1-synthesis-of-3-pyridin-2-yl-indolizine-skeletons
#13
Xia Wu, Peng Zhao, Xiao Geng, Jingjing Zhang, Xingxing Gong, Yan-Dong Wu, An-Xin Wu
A novel iodine-promoted oxidative cross-coupling/cyclization of 2-(pyridin-2-yl)acetate derivatives and methyl ketones via the cleavage of multiple Csp(3)-H bonds has been developed, which also achieved efficient cleavage of a C-C bond in the 2-(pyridin-2-yl)acetate derivatives. This protocol represents an elegant molecular fragment assembly of diverse 3-(pyridin-2-yl)indolizines via a formal [3 + 1 + 1] annulation. Notably, the pyridine derivatives serve two pivotal roles to provide two fragments to construct 3-(pyridin-2-yl)indolizine skeletons, rather than the single role in building common indolizines...
June 7, 2017: Organic Letters
https://www.readbyqxmd.com/read/28586457/response-to-letter-what-is-the-role-of-serum-thyroglobulin-measurement-in-patients-with-differentiated-thyroid-cancer-treated-without-radioactive-iodine
#14
Denise P Momesso, R Michael Tuttle
No abstract text is available yet for this article.
June 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28586450/letter-to-the-editor-what-is-the-role-of-serum-thyroglobulin-measurement-in-patients-with-differentiated-thyroid-cancer-treated-without-radioactive-iodine
#15
Luca Giovanella, Chiara Cosma, Mario Plebani
No abstract text is available yet for this article.
June 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28580162/role-of-medical-resource-level-in-iodine-deficiency-disorder
#16
Chen Xu, Zhen Liang, Yong-Jun Luo
BACKGROUND: Iodine deficiency disorders (IDDs) refer to a series of diseases caused by the human body's insufficient iodine intake. Edible salt became iodized in China in 1996, which yielded remarkable results. We have known that IDDs is associated with iodine in the human body, but it is not clear whether IDDs is related to medical resource level. METHODS: We collected the number of IDDs cases and an index for the level of medical resource from 31 provinces, autonomous regions and municipalities directly under the central government in China...
2017: Military Medical Research
https://www.readbyqxmd.com/read/28578598/hyperthyroidism-hypothyroidism-and-cause-specific-mortality-in-a-large-cohort-of-women
#17
Neige My Journy, Marie-Odile Bernier, Michele M Doody, Bruce H Alexander, Martha Linet, Cari Meinhold Kitahara
BACKGROUND: The prevalence of hyperthyroidism and hypothyroidism is 0.5-4% in iodine-replete communities, but 5-10 times higher in women than men. Those conditions are associated with a broad range of metabolic disorders and cardiovascular diseases. Biological evidence of a role of thyroid hormones in carcinogenesis also exists. However, the association between thyroid dysfunction and cardiovascular disease or cancer mortality risk remains controversial. In a large cohort of women, we evaluated the associations of hyperthyroidism and hypothyroidism with cause-specific mortality after nearly 30 years of follow-up...
June 3, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28575821/organic-and-inorganic-colloids-impacting-total-iodine-behavior-in-groundwater-from-the-datong-basin-china
#18
Kun Qian, Junxia Li, Xianjun Xie, Yanxin Wang
The geochemical behaviors of colloids in aquifers played an important role in determining the fate of iodine in groundwater system. To decipher the impact of colloids on iodine mobilization in aquifers, three successive pore-sized colloids filtration (0.45μm, 30kDa and 5kDa) were conducted on in-situ during groundwater sampling. The results showed that the distribution ratios (f) of total iodine (IT) and iron in the dissolved solution (i.e., 5kDa ultrafiltered) were from 0.78 to 0.99 and from 0.56 to 0.94, respectively...
May 30, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28562052/critical-role-of-methylammonium-librational-motion-in-methylammonium-lead-iodide-ch3nh3pbi3-perovskite-photochemistry
#19
Myeongkee Park, Nikolay Kornienko, Sebastian E Reyes-Lillo, Minliang Lai, Jeffrey B Neaton, Peidong Yang, Richard A Mathies
Raman and photoluminescence (PL) spectroscopy are used to investigate dynamic structure-function relationships in methylammonium lead iodide (MAPbI3) perovskite. The intensity of the 150 cm(-1) methylammonium (MA) librational Raman mode is found to be correlated with PL intensities in microstructures of MAPbI3. Because of the strong hydrogen bond between hydrogens in MA and iodine in the PbI6 perovskite octahedra, the Raman activity of MA is very sensitive to structural distortions of the inorganic framework...
June 7, 2017: Nano Letters
https://www.readbyqxmd.com/read/28557069/on-the-long-range-relativistic-effects-in-the-15-n-nmr-chemical-shifts-of-halogenated-azines
#20
Dmitry O Samultsev, Yury Yu Rusakov, Leonid B Krivdin
Long-range β- and γ-relativistic effects of halogens in (15) N NMR chemical shifts of 20 halogenated azines (pyridines, pyrimidines, pyrazines and 1,3,5-triazines) are shown to be unessential for fluoro- chloro- and bromo-derivatives (1-2 ppm in average). However, for iodocontaining compounds, β- and γ-relativistic effects are important contributors to the accuracy of the (15) N calculation. Taking into account long-range relativistic effects slightly improves the agreement of calculation with experiment...
May 30, 2017: Magnetic Resonance in Chemistry: MRC
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