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https://www.readbyqxmd.com/read/28548677/destabilization-of-human-insulin-fibrils-by-peptides-of-fruit-bromelain-derived-from-ananas-comosus-pineapple
#1
Sromona Das, Debasish Bhattacharyya
Deposition of insulin aggregates in human body leads to dysfunctioning of several organs. Effectiveness of fruit bromelain from pineapple in prevention of insulin aggregate was investigated. Proteolyses of bromelain was done as par human digestive system and the pool of small peptides was separated from larger peptides and proteins. Under conditions of growth of insulin aggregates from its monomers, this pool of peptides restricted the reaction upto formation of oligomers of limited size. These peptides also destabilized preformed insulin aggregates to oligomers...
May 26, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28548391/structural-and-functional-observations-of-the-p151l-mid1-mutation-reveal-alpha4-plays-a-significant-role-in-x-linked-opitz-syndrome
#2
Katharine M Wright, Haijuan Du, Michael A Massiah
Mutations of human MID1 are associated with X-linked Opitz G Syndrome (XLOS), which is characterized by midline birth defects. XLOS-observed mutations within the MID1 B-box1 domain are associated with cleft lip/palate, wide-spaced eyes and hyperspadias. Three of the four XLOS-observed mutations result in B-box1 unfolding but the structural and functional effects of the P151L mutation is not characterized. Here, we demonstrate that the P151L mutation does not disrupt the overall tertiary structure of the B-box1 domain and the adjacent domains...
May 26, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28548369/invadosomes-are-coming-new-insights-into-function-and-disease-relevance
#3
REVIEW
Elyse K Paterson, Sara A Courtneidge
Invadopodia and podosomes are discrete, actin-based molecular protrusions that form in cancer cells and normal cells respectively in response to diverse signaling pathways and extracellular matrix cues. Although they participate in a host of different cellular processes, they share a common functional theme of controlling pericellular proteolytic activity, which sets them apart from other structures that function in migration and adhesion, including focal adhesions, lamellipodia, and filopodia. In this review, we highlight research that explores the function of these complex structures, including roles for podosomes in embryonic and postnatal development, in angiogenesis and remodeling of the vasculature, in maturation of the post-synaptic membrane, in antigen sampling and recognition, and in cell-cell fusion mechanisms, as well as the involvement of invadopodia at multiple steps of the metastatic cascade, and how all of this may apply in the treatment of human disease states...
May 26, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28548243/cross-reactive-saliva-iga-antibodies-to-oxidized-ldl-and-periodontal-pathogens-in-humans
#4
Ramin Akhi, Chunguang Wang, Mikael Kyrklund, Outi Kummu, S Pauliina Turunen, Kati Hyvärinen, Arja Kullaa, Tuula Salo, Pirkko J Pussinen, Sohvi Hörkkö
AIM: Oxidized Low-Density Lipoproteins (oxLDL) are formed as a result of lipid peroxidation and are highly immunogenic and proatherogenic. In this study, saliva antibodies binding to oxLDL, Porphyromonas gingivalis (Pg) and Aggregatibacter actinomycetemcomitans (Aa), were characterized and their cross reactivity was evaluated. MATERIAL & METHODS: Resting and stimulated saliva samples were collected from 36 healthy adults (mean age 26 years). Saliva IgA, IgG and IgM autoantibody levels to copper oxidized LDL (CuOx-LDL) and malondialdehyde acetaldehyde modified LDL (MAA-LDL), were determined with chemiluminescence immunoassay...
May 26, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28548240/viscoelastic-computational-modeling-of-the-human-head-neck-system-eigenfrequencies-and-time-dependent-analysis
#5
E Boccia, A Gizzi, C Cherubini, M G C Nestola, S Filippi
A subject-specific three-dimensional viscoelastic finite element model of the human head-neck system is presented and investigated based on Computed Tomography and Magnetic Resonance biomedical images. Ad hoc imaging processing tools are developed for the reconstruction of the simulation domain geometry and the internal distribution of bone and soft tissues. Materials viscoelastic properties are characterized point-wise through an image-based interpolating function used then for assigning the constitutive prescriptions of a heterogenous viscoelastic continuum model...
May 26, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/28548238/a-quantitative-property-property-relationship-for-the-internal-diffusion-coefficients-of-organic-compounds-in-solid-materials
#6
Lei Huang, Peter Fantke, Alexi Ernstoff, Olivier Jolliet
Indoor releases of organic chemicals encapsulated in solid materials are major contributors to human exposures and are directly related to the internal diffusion coefficient in solid materials. Existing correlations to estimate the diffusion coefficient are only valid for a limited number of chemical-material combinations. This paper develops and evaluates a quantitative property-property relationship (QPPR) to predict diffusion coefficients for a wide range of organic chemicals and materials. We first compiled a training dataset of 1103 measured diffusion coefficients for 158 chemicals in 32 consolidated material types...
May 26, 2017: Indoor Air
https://www.readbyqxmd.com/read/28548211/a-haplotype-block-downstream-of-plasminogen-is-associated-with-chronic-and-aggressive-periodontitis
#7
Matthias Munz, Hong Chen, Yvonne Jockel-Schneider, Knut Adam, Per Hoffman, Klaus Berger, Thomas Kocher, Jörg Meyle, Peter Eickholz, Christof Doerfer, Matthias Laudes, André Uitterlinden, Wolfgang Lieb, Andre Franke, Stefan Schreiber, Steven Offenbacher, Kimon Divaris, Corinna Bruckmann, Bruno G Loos, Soeren Jepsen, Henrik Dommisch, Arne S Schaefer
AIM: The intronic variant rs4252120 in the plasminogen gene (PLG) is known to be associated with aggressive periodontitis (AgP) and atherosclerosis. Here, we examined the chromosomal region spanning PLG for associations with both chronic periodontitis (CP) and AgP. MATERIAL AND METHODS: The association of PLG candidate rs4252120 was tested in a German case-control sample of 1,419 CP cases using the genotyping assay hCV11225947 and 4,562 controls, genotyped with HumanOmni BeadChips...
May 26, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28547869/the-zinc-finger-domain-of-ring-finger-protein-141-reveals-a-unique-ring-fold
#8
Kazuhide Miyamoto, Airi Uechi, Kazuki Saito
Human RING finger protein 141 (RFP141) is a germ cell-specific transcription factor during spermatogenesis. We synthesized a compact construct encoding the C-terminal zinc finger of RFP141 (RFP141C peptide). Herein we determined the solution structure of the RFP141C peptide by nuclear magnetic resonance (NMR). Moreover, NMR data and the chemical modification of cysteine residues demonstrated that the RFP141C peptide binds to two zinc atoms in a cross-brace arrangement. The Simple Modular Architecture Research Tool database predicted the structure of RFP141C as a RING finger...
May 25, 2017: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/28547865/re-imagining-alzheimer-s-disease-the-diminishing-importance-of-amyloid-and-a-glimpse-of-what-lies-ahead
#9
REVIEW
Kai-Hei Tse, Karl Herrup
Many have criticized the amyloid cascade hypothesis of Alzheimer's disease for its inconsistencies and failures to either accurately predict disease symptoms or guide the development of productive therapies. In addition to criticisms, however, we believe that the field would benefit from having alternative narratives and disease models that can either replace or function alongside of an amyloid-centric view of Alzheimer's. This review is an attempt to meet that need. We offer three experimentally verified amyloid-independent mechanisms, each of which plausibly contributes substantially to the etiology of Alzheimer's disease: loss of DNA integrity, faulty cell cycle regulation, regression of myelination...
May 26, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28547835/application-of-omentum-as-an-in-vivo-bioreactor-for-regeneration-of-decellularized-human-internal-mammary-artery
#10
Reza Khorramirouz, Maryam Kameli, Sahar Eftekharzadeh, Abdol-Mohammad Kajbafzadeh
This study investigates the extent of cell seeding as well as lumen patency in acellular Internal mammary artery (IMA) scaffolds that have been re-cellularized by omentum as a natural bioreactor. Sixteen Virgin female Wistar rats were selected for implantation of acellular scaffold in omentum. Following laparotomy omentum was retracted to the outside of the abdomen and the more vascularized portion of it was selected for the experiment. The scaffold was wrapped by omentum and placed between two layers of rectus muscles that have been previously dissected...
May 25, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28547808/cytokine-response-in-crimean-congo-hemorrhagic-fever-virus-infection
#11
Önder Ergönül, Ceren Şeref, Şebnem Eren, Aysel Çelikbaş, Nurcan Baykam, Başak Dokuzoğuz, Mehmet Gönen, Füsun Can
BACKGROUND: We described the predictive role of cytokines in fatality of Crimean Congo Hemorrhagic Fever Virus (CCHFV) infection by using daily clinical sera samples. METHODS: Consequent serum samples of the selected patients in different severity groups and healthy controls were examined by using human cytokine 17-plex assay. RESULTS: We included 12(23%) mild, 30(58%) moderate, 10(19%) severe patients, and 10 healthy volunteers. The mean age of the patients was 52 (sd 15), 52% were female...
May 26, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28547783/aortic-arch-origin-of-the-left-vertebral-artery-an-anatomical-and-radiological-study-with-significance-for-avoiding-complications-with-anterior-approaches-to-the-cervical-spine
#12
Gabrielle G Tardieu, Bryan Edwards, Fernando Alonso, Koichi Watanabe, Tsuyoshi Saga, Moriyoshi Nakamura, Mayuko Motomura, Raghu Sampath, Joe Iwanaga, Oded Goren, Stephen Monteith, Rod J Oskouian, Marios Loukas, R Shane Tubbs
INTRODUCTION: Complications from anterior approaches to the cervical spine are uncommon with normal anatomy. However, variant anatomy might predispose one to an increased incidence of injury during such procedures. We hypothesized that left vertebral arteries that arise from the aortic arch instead of the subclavian artery might take a more medial path in their ascent making them more susceptible to iatrogenic injury. MATERIALS AND METHODS: Fifty human adult cadavers were examined for left vertebral arteries having an aortic arch origin and these were dissected along their entire cervical course...
May 25, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28547316/preliminary-study-of-the-safety-and-efficacy-of-medium-chain-triglycerides-for-use-as-an-intraocular-tamponading-agent-in-minipigs
#13
Vincent J Soler, Camille Laurent, Frédéric Sakr, Alain Regnier, Cyrielle Tricoire, Olivier Cases, Renata Kozyraki, Jean-Yves Douet, Véronique Pagot-Mathis
PURPOSE: To date, only silicone oils and gases have the appropriate characteristics for use in vitreo-retinal surgery as vitreous substitutes with intraocular tamponading properties. This preliminary study evaluated the safety and efficacy of medium-chain triglycerides (MCTs) for use as a tamponading agent in minipigs. METHODS: In 15 minipigs, 15 right eyes underwent vitrectomies followed by injection of MCT tamponade (day 1). Two groups were defined. In Group A (ten eyes), the surgical procedure before MCT injection included induced rhegmatogenous retinal detachment (RRD), retina flattening, and retinopexy...
May 25, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28546693/disseminated-rhinosporidiosis-with-conjunctival-involvement-in-an-immunocompromised-patient
#14
Deepa John, Satheesh S T Selvin, Aparna Irodi, Pushpa Jacob
Rhinosporidiosis is a granulomatous infection of mucocutaneous tissue caused by Rhinosporidium seeberi that most commonly occurs in the nasal cavity. Ocular rhinosporidiosis affects primarily the conjunctiva. Diagnosis of rhinosporidiosis is based on strong clinical suspicion and is confirmed by histopathological examination. We report a rare case of conjunctival rhinosporidiosis in an immunocompromised patient (human immunodeficiency virus) with disseminated cutaneous rhinosporidiosis. A 44-year-old male presented with a swelling in the right upper eyelid for 6 months...
January 2017: Middle East African Journal of Ophthalmology
https://www.readbyqxmd.com/read/28546646/canaries-in-a-coal-mine-what-the-killings-of-journalists-tell-us-about-future-repression
#15
Anita R Gohdes, Sabine C Carey
An independent press that is free from government censorship is regarded as instrumental to ensuring human rights protection. Yet governments across the globe often target journalists when their reports seem to offend them or contradict their policies. Can the government's infringements of the rights of journalists tell us anything about its wider human rights agenda? The killing of a journalist is a sign of deteriorating respect for human rights. If a government orders the killing of a journalist, it is willing to use extreme measures to eliminate the threat posed by the uncontrolled flow of information...
March 2017: Journal of Peace Research
https://www.readbyqxmd.com/read/28546309/inferential-learning-of-serial-order-of-perceptual-categories-by-rhesus-monkeys-macaca-mulatta
#16
Natalie Tanner, Greg Jensen, Vincent P Ferrera, Herbert S Terrace
Category learning in animals is typically trained explicitly, in most instances by varying the exemplars of a single category in a matching-to-sample task. Here, we show that male rhesus macaques can learn categories by a transitive inference paradigm in which novel exemplars of five categories were presented throughout training. Instead of requiring decisions about a constant set of repetitively presented stimuli, we studied the macaque's ability to determine the relative order of multiple exemplars of particular stimuli that were rarely repeated...
May 25, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28546307/the-right-lateral-cerebellum-represents-linguistic-predictability
#17
Elise Lesage, Peter C Hansen, R Chris Miall
Mounting evidence indicates that posterolateral portions of the cerebellum (right Crus I/II) contribute to language processing, but the nature of this role remains unclear. Based on a well-supported theory of cerebellar motor function, which ascribes to the cerebellum a role in short-term prediction through internal modeling, we hypothesize that right cerebellar Crus I/II supports prediction of upcoming sentence content.We tested this hypothesis using event-related fMRI in human subjects by manipulating the predictability of written sentences...
May 25, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28546267/effective-management-of-breathlessness-a-review-of-potential-human-rights-issues
#18
EDITORIAL
Metin Başoğlu
No abstract text is available yet for this article.
May 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28545708/realisation-of-human-rights-to-health-and-through-health
#19
Tarja Halonen, Hina Jilani, Kate Gilmore, Flavia Bustreo
No abstract text is available yet for this article.
May 22, 2017: Lancet
https://www.readbyqxmd.com/read/28545526/effective-implementation-of-the-uncrpd-by-thailand-state-party-challenges-and-potential-remedies
#20
Donruedee Srisuppaphon, Arnon Sriboonroj, Wachara Riewpaiboon, Viroj Tangcharoensathien
BACKGROUND: The Thai government ratified the United Nations Convention on the Rights of Persons with Disabilities (UNCRPD) in 2008, and the first progress report by the State Party was issued in 2012. This study assesses and identifies gaps in the Government's implementation of the Convention. METHODS: Using the Deming Plan-Do-Check-Act Cycle as an analytical framework for continuous quality improvement, we reviewed five documents which are: the 2012 State Party report; the list of issues by the Committee on the Rights of Persons with Disabilities; the 2015 replies to the list of issues by the Thai government; an alternative report produced by Civil Society Organizations (CSOs); and an alternative report produced by the National Human Rights Commission of Thailand...
May 25, 2017: BMC International Health and Human Rights
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