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https://www.readbyqxmd.com/read/28726292/-in-visibility-online-the-benefits-of-online-patient-forums-for-people-with-a-hidden-illness-the-case-of-multiple-chemical-sensitivities-mcs
#1
Tarryn Phillips, Tyson Rees
Sufferers of medically unexplained conditions that are not observable in the clinic can experience multiple layers of invisibility: a lack of biomedical diagnosis; legal skepticism; political disinterest; and a loss of their prior social identity. For those with environmental sensitivities, this is compounded by literal hiddenness due to often being housebound. Drawing on an online survey of people with multiple chemical sensitivity, this article examines how the everyday experience of invisibility is mitigated by engaging with other patients online...
July 20, 2017: Medical Anthropology Quarterly
https://www.readbyqxmd.com/read/28723207/wearable-flexible-and-multifunctional-healthcare-device-with-an-isfet-chemical-sensor-for-simultaneous-sweat-ph-and-skin-temperature-monitoring
#2
Shogo Nakata, Takayuki Arie, Seiji Akita, Kuniharu Takei
Real-time daily healthcare monitoring may increase the chances of predicting and diagnosing diseases in their early stages which, currently, occurs most frequently during medical check-ups. Next-generation noninvasive healthcare devices, such as flexible multifunctional sensor sheets designed to be worn on skin, are considered to be highly suitable candidates for continuous real-time health monitoring. For healthcare applications, acquiring data on the chemical state of the body, alongside physical characteristics such as body temperature and activity, are extremely important for predicting and identifying potential health conditions...
March 24, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28723169/nanoantenna-enhanced-infrared-spectroscopic-chemical-imaging
#3
Lucca Kühner, Mario Hentschel, Ute Zschieschang, Hagen Klauk, Jochen Vogt, Christian Huck, Harald Giessen, Frank Neubrech
Spectroscopic infrared chemical imaging is ideally suited for label-free and spatially resolved characterization of molecular species, but often suffers from low infrared absorption cross sections. Here, we overcome this limitation by utilizing confined electromagnetic near-fields of resonantly excited plasmonic nanoantennas, which enhance the molecular absorption by orders of magnitude. In the experiments, we evaporate microstructured chemical patterns of C60 and pentacene with nanometer thickness on top of homogeneous arrays of tailored nanoantennas...
May 26, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28723151/fusion-of-structure-and-ligand-based-methods-for-identification-of-novel-cdk2-inhibitors
#4
Priya Mahajan, Gousia Chashoo, Monika Gupta, Amit Kumar, Parvinder Pal Singh, Amit Nargotra
Cyclin dependent kinases plays a central role in cell cycle regulation which makes them a promising target with multifarious therapeutic potential. CDK2 regulates various events of the eukaryotic cell division cycle and the pharmacological evidences indicated that over expression of CDK2 causes abnormal cell-cycle regulation, which was directly associated with hyper proliferation of cancer cells. Therefore, CDK2 is regarded as a potential target molecule for anti-cancer medication. Thus to decline CDK2 activity by potential lead compounds has proved to be an effective treatment for cancer...
July 19, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28722604/classification-and-visualization-of-physical-and-chemical-properties-of-falsified-medicines-with-handheld-raman-spectroscopy-and-x-ray-computed-tomography
#5
Tomoko Kakio, Naoko Yoshida, Susan Macha, Kazunobu Moriguchi, Takashi Hiroshima, Yukihiro Ikeda, Hirohito Tsuboi, Kazuko Kimura
Analytical methods for the detection of substandard and falsified medical products (SFs) are important for public health and patient safety. Research to understand how the physical and chemical properties of SFs can be most effectively applied to distinguish the SFs from authentic products has not yet been investigated enough. Here, we investigated the usefulness of two analytical methods, handheld Raman spectroscopy (handheld Raman) and X-ray computed tomography (X-ray CT), for detecting SFs among oral solid antihypertensive pharmaceutical products containing candesartan cilexetil as an active pharmaceutical ingredient (API)...
June 19, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28720431/biological-responses-to-immobilized-microscale-and-nanoscale-surface-topographies
#6
REVIEW
Shelby A Skoog, Girish Kumar, Roger J Narayan, Peter L Goering
Cellular responses are highly influenced by biochemical and biomechanical interactions with the extracellular matrix (ECM). Due to the impact of the ECM architecture on cellular responses, significant research has been dedicated towards developing biomaterials that mimic the physiological environment for design of improved medical devices. Surface topographies with microscale and nanoscale features have demonstrated an effect on numerous cellular responses including cell adhesion, migration, proliferation, gene expression, protein production, and differentiation; however, determining relationships between biological responses and surface topographies are difficult to establish due to differences in cell types and biomaterial surface properties...
July 15, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28715745/a-practical-protocol-for-comprehensive-evaluation-of-sulfur-fumigation-of-gastrodia-rhizoma-using-metabolome-and-health-risk-assessment-analysis
#7
Chuanzhi Kang, Chang-Jiang-Sheng Lai, Dan Zhao, Tao Zhou, Da-Hui Liu, Chaogeng Lv, Sheng Wang, Liping Kang, Jian Yang, Zhi-Lai Zhan, Lu-Qi Huang, Lanping Guo
Gastrodia Rhizoma is one of the most heavily sulfur-fumigated edible and medical herbs in the marketplace. We developed a practical protocol using an ultra-performance liquid chromatography coupled with quadrupole time-of-flight-MS(E) (UPLC/QTOF-MS(E))-based metabolome and health risk assessment model to identify characteristic sulfur-fumigated markers, dissect chemical transformation mechanisms, and control the quality of sulfur-fumigated Gastrodia Rhizoma. Two sulfur-containing p-hydroxybenzyl products, one sulfur-containing disaccharide, one glycolipid, and two phospholipids were selected and identified as markers based on multivariate statistical analysis...
July 4, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28715615/rational-design-chemical-development-and-stability-assessment-of-a-new-macrocyclic-four-hydroxamates-bearing-bifunctional-chelating-agent-for-89zr
#8
Uwe Seibold, Björn Wängler, Carmen Wängler
89Zr is a positron-emitting radionuclide being of high interest for medical imaging applications with Positron Emission Tomography. For the introduction of this radiometal into biologically active targeting vectors, the chelating agent desferrioxamine B (DFO) is commonly applied which is however known to form 89Zr-complexes of limited in vivo stability. We herein describe the rational design and chemical development a new, macrocyclic, four hydroxamates-bearing chelating agent (CTH36) for the stable complexation of Zr4+...
July 17, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28714384/chemistry-in-the-bioactivity-of-chlorophylls-an-overview
#9
Antonio Pérez-Gálvez, Isabel Viera, María Roca
BACKGROUND: In addition to the considerable number of different chlorophyll structures originated naturally, prominent research is made to produce new specific semi-synthetic structures. The final target is to obtain chlorophyll derivatives with even better bioactive properties than those of the natural parent compounds. METHOD: A detailed, extensive and critic literature search have been made in Web of ScienceTM Results: Great efforts are applying to optimize the function of chlorophyll-based photosensitizers, to understand the molecular mechanisms of the antioxidant and antigenotoxic properties of chlorophyll derivatives and, lastly, to investigate new biological actions of them...
July 14, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28714284/egg-albumen-as-a-fast-and-strong-medical-adhesive-glue
#10
Kaige Xu, Yuqing Liu, Shousan Bu, Tianyi Wu, Qiang Chang, Gurankit Singh, Xiaojian Cao, Chuang Deng, Bingyun Li, Gaoxing Luo, Malcolm Xing
Sutures penetrate tissues to close wounds. This process leads to inflammatory responses, prolongs healing time, and increases operation complexity. It becomes even worse when sutures are applied to stress-sensitive and fragile tissues. By bonding tissues via forming covalent bonds, some medical adhesives are not convenient to be used by surgeons and have side effects to the tissues. Here egg albumen adhesive (EAA) is reported with ultrahigh adhesive strength to bond various types of materials and can be easily used without any chemical and physical modifications...
July 17, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28714139/simple-radical-polymerization-of-poly-alginate-graft-n-isopropylacrylamide-injectable-thermoresponsive-hydrogel-with-the-potential-for-localized-and-sustained-delivery-of-stem-cells-and-bioactive-molecules
#11
Sreekanth Pentlavalli, Philip Chambers, Binulal N Sathy, Michelle O'Doherty, Marine Chalanqui, Daniel J Kelly, Tammy Haut-Donahue, Helen O McCarthy, Nicholas J Dunne
In this study, thermoresponsive copolymers that are fully injectable, biocompatible, and biodegradable and are synthesized via graft copolymerization of poly(N-isopropylacrylamide) onto alginate using a free-radical reaction are presented. This new synthesis method does not involve multisteps or associated toxicity issues, and has the potential to reduce scale-up difficulties. Chemical and physical analyses verify the resultant graft copolymer structure. The lower critical solution temperature, which is a characteristic of sol-gel transition, is observed at 32 °C...
July 17, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/28713784/identification-of-novel-and-efficacious-chemical-compounds-that-disturb-influenza-a-virus-entry-in-vitro
#12
Hany Khalil, Tamer El Malah, Ahmed I Abd El Maksoud, Ibrahim El Halfawy, Ahmed A El Rashedy, Mahmoud El Hefnawy
Influenza A virus is a negative RNA stranded virus of the family Orthomyxoviridae, and represents a major public health threat, compounding existing disease conditions. Influenza A virus replicates rapidly within its host and the segmented nature of its genome facilitates re-assortment, whereby whole genes are exchanged between influenza virus subtypes during replication. Antiviral medications are important pharmacological tools in influenza virus prophylaxis and therapy. However, the use of currently available antiviral is impeded by sometimes high levels of resistance in circulating virus strains...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28713552/case-report-diagnosis-of-hypogeusia-after-oral-exposure-to-commercial-cleaning-agent-and-considerations-for-clinical-taste-testing
#13
Marie Jetté, Catherine Anderson, Vijay Ramakrishnan
Few reports in the literature document acute taste disturbance following exposure to toxic chemicals. We describe the case of a 54-year-old man who presented with primary complaint of tongue numbness and persistent problems with taste 1.5 years following oral exposure to a commercial cleaning agent. A test of olfaction revealed normosmia for age and gender. Lingual tactile two-point discrimination testing showed reduced somatosensation. Taste threshold testing using a 3-drop method demonstrated severe hypogeusia, though the patient was able to discriminate tastants at lower concentrations with a whole mouth swish and spit test...
2017: F1000Research
https://www.readbyqxmd.com/read/28713086/intensifying-approach-to-the-therapy-of-patients-with-constellation-of-the-diseases-chronic-obstructive-pulmonary-disease-and-osteoarthritis
#14
Vyacheslav N Zhdan, Maksim М Potyazhenko, Galina S Khaymenova, Nadezhda N Lyulka, Tatyana V Dubrovinskaya, Igor V Ivanitsky
INTRODUCTION: Chronic obstructive pulmonary disease (COPD) is one of 21st century. About 210 million people all over the world are suffering with COPD, and annually 3 million people die of it. Under the influence of different factors, such as smoking, air prolusion, evaporation of chemicals, poisoning effect of chemical firings, inflammation processes take place in lungs, and if it is prolonged and take place simultaneously with morphological changes in the lungs, it it provide the de4velopment of the systemic inflammation process...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28709077/phytonanotherapy-for-management-of-diabetes-using-green-synthesis-nanoparticles
#15
K Anand, C Tiloke, Pragalathan Naidoo, A A Chuturgoon
The world has a rich diversity of indigenous medicinal plants. The World Health Organization (WHO) gives high priority to eco-friendly, non-hazardous and cost effective healthcare such as the use of medicinal plants to treat various illnesses, including Human immunodeficiency virus (HIV) infection and Acquired immune deficiency syndrome (AIDS), tuberculosis (TB), diabetes mellitus (DM), malaria, and cancer. In developing countries, a high proportion of the population tends to use complementary and alternative medicines (CAM) together with conventional prescription drugs...
June 27, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28706097/changes-in-psychosocial-and-physical-working-conditions-and-psychotropic-medication-in-ageing-public-sector-employees-a-record-linkage-follow-up-study
#16
Anne Kouvonen, Minna Mänty, Tea Lallukka, Olli Pietiläinen, Eero Lahelma, Ossi Rahkonen
OBJECTIVES: To investigate whether changes in psychosocial and physical working conditions are associated with subsequent psychotropic medication in ageing employees. METHODS: Data were from the Helsinki Health Study, a cohort study of Finnish municipal employees, aged 40-60 years at phase 1 (2000-2002). Changes in psychosocial and physical working conditions were measured between phase 1 and phase 2 (2007). Survey data were longitudinally linked to data on prescribed, reimbursed psychotropic medication purchases (Anatomical Therapeutic Chemical) obtained from the registers of the Social Insurance Institution of Finland between the phase 2 survey and December 2013 (N=3587; 80% women)...
July 12, 2017: BMJ Open
https://www.readbyqxmd.com/read/28702651/modeling-electrical-double-layer-effects-for-microfluidic-impedance-spectroscopy-from-100-khz-to-110-ghz
#17
Charles A E Little, Nathan D Orloff, Isaac E Hanemann, Christian J Long, Victor M Bright, James C Booth
Broadband microfluidic-based impedance spectroscopy can be used to characterize complex fluids, with applications in medical diagnostics and in chemical and pharmacological manufacturing. Many relevant fluids are ionic; during impedance measurements ions migrate to the electrodes, forming an electrical double-layer. Effects from the electrical double-layer dominate over, and reduce sensitivity to, the intrinsic impedance of the fluid below a characteristic frequency. Here we use calibrated measurements of saline solution in microfluidic coplanar waveguide devices at frequencies between 100 kHz and 110 GHz to directly measure the double-layer admittance for solutions of varying ionic conductivity...
July 12, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28702265/rehabilitation-of-nose-following-chemical-burn-using-cad-cam-made-substructure-for-implant-retained-nasal-prosthesis-a-clinical-report
#18
Saurabh Chaturvedi, Tushar Bhagat, A K Verma, Vishwanath Gurumurthy, Mariyam Ali, Preeti Vadhwani, Mudita Chaturvedi
Insufficient knowledge of medical chemicals and their improper use have destructive effects. Accidental exposure to chemicals on facial tissue may result in large facial defect. For ages the tradition of piercing nose is common but improper use of unknown chemical for piercing has deleterious effect. Mostly rhinectomy defects are acquired caused by trauma or malignant diseases. Prosthetic rehabilitation is the preferred treatment of choice for any large rhinectomy defects as medical and surgical interventions are ineffective in developing esthetics...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28701263/treatment-for-anal-fissure-is-there-a-safe-option
#19
Justin T Brady, Alison R Althans, Ruel Neupane, Eslam M G Dosokey, Murad A Jabir, Harry L Reynolds, Scott R Steele, Sharon L Stein
BACKGROUND: Surgeons often approach anal fissure with chemical denervation (Botulinum toxin, BT) instead of initial lateral internal sphincterotomy (LIS) due to concerns for long-term incontinence. We evaluated the characteristics and outcomes of patients who received BT or LIS. METHODS: We performed a retrospective chart review of patients undergoing LIS and BT for anal fissure between 2009 and 2015. In 2015, a telephone survey was performed to evaluate durability, long-term incontinence and patient satisfaction...
July 5, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28700665/solution-conformations-of-zika-ns2b-ns3pro-and-its-inhibition-by-natural-products-from-edible-plants
#20
Amrita Roy, Liangzhong Lim, Shagun Srivastava, Yimei Lu, Jianxing Song
The recent Zika viral (ZIKV) epidemic has been associated with severe neurological pathologies such as neonatal microcephaly and Guillain-Barre syndrome but unfortunately no vaccine or medication is effectively available yet. Zika NS2B-NS3pro is essential for the proteolysis of the viral polyprotein and thereby viral replication. Thus NS2B-NS3pro represents an attractive target for anti-Zika drug discovery/design. Here, we have characterized the solution conformations and catalytic parameters of both linked and unlinked Zika NS2B-NS3pro complexes and found that the unlinked complex manifested well-dispersed NMR spectra...
2017: PloS One
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