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https://www.readbyqxmd.com/read/28074748/possible-parkinson-s-disease-induced-by-chronic-manganese-supplement-ingestion
#1
Michael J Schuh
OBJECTIVE: The objective is to report a case of possible neurotoxicity resulting from an incorrect dietary supplement for osteoporosis taken at a toxic dose. SUMMARY: The case study examined here is a 37-year-old African-American female who consumed excessive manganese over a period of years, resulting in Parkinson's disease (PD). This patient was referred to the pharmacist pharmacotherapy service by a neurology physician. PD has been shown in the medical literature to be caused by chronic exposure to high levels of manganese...
December 1, 2016: Consultant Pharmacist: the Journal of the American Society of Consultant Pharmacists
https://www.readbyqxmd.com/read/28073977/the-effects-of-a-modified-hot-water-treatment-on-anastrepha-ludens-diptera-tephritidae-infested-mango
#2
Emilio Hernández, Marysol Aceituno-Medina, Jorge Toledo, Bigail Bravo, José Caro-Corrales, Pablo Montoya, Robert Mangan
The Mexican fruit fly, Anastrepha ludens (Loew), is a quarantine pest in mango (Mangifera indica L.) that can be controlled by using a hot water treatment (HWT). This treatment is normally followed by a 30-min hydrocooling (HYC) process that reduces the negative effects that the treatment has on fruit quality. However, if hot water-treated fruits are immediately immersed in water at 21 °C, the survival rate of third-instar A. ludens may be increased. The current approved treatment protocol states that if HYC is used, then treated fruit should undergo an additional 10-min HWT or on platform for 30 min before HYC...
January 10, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28058667/evaluation-of-high-risk-features-of-primary-enucleation-of-patients-with-retinoblastoma-in-a-tertiary-center-of-a-developing-country-in-the-era-of-intra-arterial-chemotherapy
#3
Funda Dikkaya, Ahmet Murat Sarıcı, Firuze Erbek, Tiraje Celkan, Mehmet Serhat Mangan, Övgü Aydın, Cuyan Demirkesen, Halit Pazarlı
PURPOSE: To evaluate the frequency of high-risk histopathologic factors in Turkish children enucleated for retinoblastoma and to analyze the association between growth pattern, rosetta formation, tumor thickness, presence of necrosis, calcification, neovascularization, rate of mitosis, and high-risk histopathologic factors. METHODS: Pathology reports of 59 eyes who had received enucleation for retinoblastoma were reviewed retrospectively. The histopathologic data included presence of choroidal invasion, optic nerve invasion, scleral extension, tumor thickness, presence of necrosis, calcification, neovascularization, rosetta formation and lymphocyte infiltration, rate of mitosis, and growth pattern...
January 5, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28058159/isolated-anterior-lens-capsule-rupture-secondary-to-blunt-trauma-pathophysiology-and-treatment
#4
Mehmet Serhat Mangan, Ceyhun Arıcı, İbrahim Tuncer, Hüseyin Yetik
A 25-year-old man suffered an isolated lens anterior capsular tear and mature cataract formation following blunt injury to his right eye. One week after the trauma, best-corrected visual acuity (BCVA) in the right eye was hand motion. B-scan ultrasonography showed that the lens posterior capsule was intact; no vitreous foreign body or retinal pathology were observed. Orbital computed tomography revealed narrowed anterior chamber and increased lens material volume and lens reflectivity in the injured right eye...
August 2016: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28056077/heterogeneous-ice-nucleation-by-soufriere-hills-volcanic-ash-immersed-in-water-droplets
#5
T P Mangan, J D Atkinson, J W Neuberg, D O'Sullivan, T W Wilson, T F Whale, L Neve, N S Umo, T L Malkin, B J Murray
Fine particles of ash emitted during volcanic eruptions may sporadically influence cloud properties on a regional or global scale as well as influencing the dynamics of volcanic clouds and the subsequent dispersion of volcanic aerosol and gases. It has been shown that volcanic ash can trigger ice nucleation, but ash from relatively few volcanoes has been studied for its ice nucleating ability. In this study we quantify the efficiency with which ash from the Soufriere Hills volcano on Montserrat nucleates ice when immersed in supercooled water droplets...
2017: PloS One
https://www.readbyqxmd.com/read/28045025/interferon-epsilon-promotes-hiv-restriction-at-multiple-steps-of-viral-replication
#6
Albert Garcia-Minambres, Sahar G Eid, Niamh E Mangan, Corinna Pade, San S Lim, Antony Y Matthews, Nicole A de Weerd, Paul J Hertzog, Johnson Mak
Interferon epsilon (IFNɛ) is a type I IFN that is expressed constitutively in the female reproductive tract (FRT), and contributes to protection in models of sexually transmitted infections. Using multiple cell systems, including reporter cell lines and activated peripheral blood lymphocytes (PBLs), we show that recombinant IFNɛ impairs HIV infection at stage(s) post HIV entry and up to the translation of viral proteins. Consistent with this, IFNɛ upregulated a number of host cell restriction factors that block HIV at these stages of the replication cycle...
January 3, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28042895/ecological-genomics-of-tropical-trees-how-local-population-size-and-allelic-diversity-of-resistance-genes-relate-to-immune-responses-co-susceptibility-to-pathogens-and-negative-density-dependence
#7
J H Marden, S A Mangan, M Peterson, E Wafula, H W Fescemyer, J Der, C W dePamphilis, L S Comita
In tropical forests, rarer species show increased sensitivity to species-specific soil pathogens and more negative effects of conspecific density on seedling survival (NDD). These patterns suggest a connection between ecology and immunity, perhaps because small population size disproportionately reduces genetic diversity of hyperdiverse loci such as immunity genes. In an experiment examining seedling roots from six species in one tropical tree community, we found that smaller populations have reduced amino acid diversity in pathogen resistance (R) genes but not the transcriptome in general...
January 2, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28042878/arbuscular-mycorrhizal-fungal-community-composition-is-altered-by-long-term-litter-removal-but-not-litter-addition-in-a-lowland-tropical-forest
#8
Merlin Sheldrake, Nicholas P Rosenstock, Daniel Revillini, Pål Axel Olsson, Scott Mangan, Emma J Sayer, Håkan Wallander, Benjamin L Turner, Edmund V J Tanner
Tropical forest productivity is sustained by the cycling of nutrients through decomposing organic matter. Arbuscular mycorrhizal (AM) fungi play a key role in the nutrition of tropical trees, yet there has been little experimental investigation into the role of AM fungi in nutrient cycling via decomposing organic material in tropical forests. We evaluated the responses of AM fungi in a long-term leaf litter addition and removal experiment in a tropical forest in Panama. We described AM fungal communities using 454-pyrosequencing, quantified the proportion of root length colonised by AM fungi using microscopy, and estimated AM fungal biomass using a lipid biomarker...
January 2, 2017: New Phytologist
https://www.readbyqxmd.com/read/28024184/serpinb9-is-a-marker-of-antigen-cross-presenting-dendritic-cells
#9
M S Mangan, J Vega-Ramos, L T Joeckel, A J Mitchell, A Rizzitelli, B Roediger, D Kaiserman, W W Weninger, J A Villadangos, P I Bird
Serpinb9 (Sb9, also called Spi6) is an intracellular inhibitor of granzyme B (grB) that protects cytotoxic lymphocytes from grB-mediated death. In addition, Sb9 is also expressed in accessory immune cells, including dendritic cells (DCs), although its role is debated. Recently, we have demonstrated that Sb9 plays a grB-independent role in cross-presentation of antigens by CD8(+) DCs. Here, using a mouse line expressing green fluorescent protein knocked in under the control of the Sb9 promoter, we demonstrate that Sb9 expression is highest in those tissue-resident and migratory DC subsets capable of cross-presentation...
December 23, 2016: Molecular Immunology
https://www.readbyqxmd.com/read/27998198/edema-with-hypoalbuminemia-as-a-rare-manifestation-of-chronic-graft-versus-host-disease-after-allogeneic-hematopoietic-cell-transplant
#10
Jonathan J Hogan, Alison W Loren, Matthew G Denker, James K Mangan
No abstract text is available yet for this article.
December 21, 2016: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/27984478/reliability-of-the-arch-height-index-as-a-measure-of-foot-structure-in-children
#11
Lisa C Drefus, Paz Kedem, Siobhan M Mangan, David M Scher, Howard J Hillstrom
PURPOSE: To determine the intrarater and interrater reliability of the arch height index (AHI) in children developing typically. The AHI is tested with a device that measures foot structure. METHODS: Thirty children, ages 6 to 12 years, participated for a total of n = 60 feet. The AHI measurements were taken by 2 investigators in sitting and standing and repeated twice by each investigator in a single visit. Intrarater and interrater reliabilities were determined using intraclass correlation coefficient (ICC) (2,1) statistical analysis...
January 2017: Pediatric Physical Therapy
https://www.readbyqxmd.com/read/27974170/getting-it-right-the-first-time-defining-regionally-relevant-training-curricula-and-provider-core-competencies-for-point-of-care-ultrasound-education-on-the-african-continent
#12
Margaret Salmon, Megan Landes, Cheryl Hunchak, Justin Paluku, Luc Malemo Kalisya, Christian Salmon, Mundenga Mutendi Muller, Benjamin Wachira, James Mangan, Kajal Chhaganlal, Joseph Kalanzi, Aklilu Azazh, Sara Berman, El-Sayed Zied, Hein Lamprecht
Significant evidence identifies point-of-care ultrasound (PoCUS) as an important diagnostic and therapeutic tool in resource-limited settings. Despite this evidence, local health care providers on the African continent continue to have limited access to and use of ultrasound, even in potentially high-impact fields such as obstetrics and trauma. Dedicated postgraduate emergency medicine residency training programs now exist in 8 countries, yet no current consensus exists in regard to core PoCUS competencies...
December 11, 2016: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/27914093/lsmo-nanoparticles-coated-by-hyaluronic-acid-for-magnetic-hyperthermia
#13
Yuanwei Chen, Ying Wang, Xi Liu, Mai Lu, Jiangwei Cao, Tao Wang
Magnetic hyperthermia with the treating temperature range of 41-46 °C is an alternative therapy for cancer treatment. In this article, lanthanum strontium manganates (La1-x Sr x MnO3, 0.25 ≤ × ≤ 0.35) magnetic nanoparticles coated by hyaluronic acid (HA) which possesses the ability of targeting tumor cells were prepared by a simple hydrothermal method combined with a high-energy ball milling technique. The crystal structure, morphology, magnetic properties of the HA-coated magnetic nanoparticles (MNPs), and their heating ability under alternating magnetic field were investigated...
December 2016: Nanoscale Research Letters
https://www.readbyqxmd.com/read/27913844/global-dna-methylation-profiling-of-manganese-exposed-human-neuroblastoma-sh-sy5y-cells-reveals-epigenetic-alterations-in-parkinson-s-disease-associated-genes
#14
Prashant Tarale, Saravanadevi Sivanesan, Atul P Daiwile, Reinhard Stöger, Amit Bafana, Pravin K Naoghare, Devendra Parmar, Tapan Chakrabarti, Krishnamurthi Kannan
Manganese (Mn) is an essential trace element required for optimal functioning of cellular biochemical pathways in the central nervous system. Elevated exposure to Mn through environmental and occupational exposure can cause neurotoxic effects resulting in manganism, a condition with clinical symptoms identical to idiopathic Parkinson's disease. Epigenetics is now recognized as a biological mechanism involved in the etiology of various diseases. Here, we investigated the role of DNA methylation alterations induced by chronic Mn (100 µM) exposure in human neuroblastoma (SH-SY5Y) cells in relevance to Parkinson's disease...
December 2, 2016: Archives of Toxicology
https://www.readbyqxmd.com/read/27885631/the-glutamine-transporters-and-their-role-in-the-glutamate-gaba-glutamine-cycle
#15
Renata Leke, Arne Schousboe
Glutamine is a key amino acid in the CNS, playing an important role in the glutamate/GABA-glutamine cycle (GGC). In the GGC, glutamine is transferred from astrocytes to neurons, where it will replenish the inhibitory and excitatory neurotransmitter pools. Different transporters participate in this neural communication, i.e., the transporters responsible for glutamine efflux from astrocytes and influx into the neurons, such as the members of the SNAT, LAT, y(+)LAT, and ASC families of transporters. The SNAT family consists of the transporter isoforms SNAT3 and SNAT5 that are related to efflux from the astrocytic compartment, and SNAT1 and SNAT2 that are associated with glutamine uptake into the neuronal compartment...
2016: Advances in Neurobiology
https://www.readbyqxmd.com/read/27870693/limb-salvage-with-intrepid-dynamic-exoskeletal-orthosis-versus-transtibial-amputation-a-comparison-of-functional-gait-outcomes
#16
Katharine I Mangan, Trevor D Kingsbury, Brittney N Mazzone, Marilynn P Wyatt, Kevin M Kuhn
OBJECTIVES: To determine if there is a difference in functional gait outcomes between patients with limb injuries treated with either transtibial amputation or limb preservation with the Intrepid Dynamic Exoskeletal Orthosis. DESIGN: Retrospective prognostic study. SETTING: Tertiary referral military hospital. PATIENTS: This study included 10 transtibial amputees and 10 limb preservation patients using the Intrepid Dynamic Exoskeletal Orthosis who were matched by body mass index after excluding for nontraumatic, proximal ipsilateral, contralateral, spine, or traumatic brain injuries...
December 2016: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/27856432/efficacy-and-safety-of-sarilumab-monotherapy-versus-adalimumab-monotherapy-for-the-treatment-of-patients-with-active-rheumatoid-arthritis-monarch-a-randomised-double-blind-parallel-group-phase-iii-trial
#17
Gerd R Burmester, Yong Lin, Rahul Patel, Janet van Adelsberg, Erin K Mangan, Neil M H Graham, Hubert van Hoogstraten, Deborah Bauer, Juan Ignacio Vargas, Eun Bong Lee
OBJECTIVES: To compare efficacy and safety of sarilumab monotherapy with adalimumab monotherapy in patients with active rheumatoid arthritis (RA) who should not continue treatment with methotrexate (MTX) due to intolerance or inadequate response. METHODS: MONARCH was a randomised, active-controlled, double-blind, double-dummy, phase III superiority trial. Patients received sarilumab (200 mg every 2 weeks (q2w)) or adalimumab (40 mg q2w) monotherapy for 24 weeks...
November 17, 2016: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/27814772/-manganese-induced-neurotoxicity-a-review-of-its-behavioral-consequences-and-neuroprotective-strategies
#18
REVIEW
Tanara V Peres, Maria Rosa C Schettinger, Pan Chen, Fabiano Carvalho, Daiana S Avila, Aaron B Bowman, Michael Aschner
Manganese (Mn) is an essential heavy metal. However, Mn's nutritional aspects are paralleled by its role as a neurotoxicant upon excessive exposure. In this review, we covered recent advances in identifying mechanisms of Mn uptake and its molecular actions in the brain as well as promising neuroprotective strategies. The authors focused on reporting findings regarding Mn transport mechanisms, Mn effects on cholinergic system, behavioral alterations induced by Mn exposure and studies of neuroprotective strategies against Mn intoxication...
November 4, 2016: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/27812593/a-new-synthesis-and-preliminary-evaluation-of-some-analogues-of-mecamylamine-a-compound-with-anti-addiction-properties
#19
David Mangan, Neasa McNabola, Emily H Clark, Isabel Bermudez, Susan Wonnacott, J Mike Southern
A new synthesis of mecamylamine - a known anti-hypertensive drug with anti-addictive properties is described. The new route allowed access to two novel analogues whose activity at two nicotinic acetylcholine receptor subtypes was assessed.
November 4, 2016: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/27810709/novel-approaches-to-the-automated-assay-of-%C3%AE-glucanase-and-lichenase-activity
#20
D Mangan, A Liadova, R Ivory, B V McCleary
We report herein the development of a novel assay procedure for the measurement of β-glucanase and lichenase (EC 3.2.1.73) in crude enzyme extracts. Two assay formats based on a) a direct cleavage or b) an enzyme coupled substrate were initially investigated. The 'direct cleavage' substrate, namely 4,6-O-benzylidene-2-chloro-4-nitrophenyl-β-3(1)-cellotriosyl-β-glucopyranoside (MBG4), was found to be the more generally applicable reagent. This substrate was fully characterised using a crude malt β-glucanase extract, a bacterial lichenase (Bacillus sp...
November 29, 2016: Carbohydrate Research
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