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https://www.readbyqxmd.com/read/28743062/peripheral-leucocytes-and-tissue-gene-expression-of-granzyme-b-perforin-system-and-serpinb9-impact-on-inflammation-and-insulin-resistance-in-coronary-atherosclerosis
#1
Eman F Sanad, Nadia M Hamdy, Adel K El-Etriby, Samer A Sebak, Hala O El-Mesallamy
AIM: The imbalance between proapoptotic granzyme B (GZB)/perforin (PRF) system and proteinase inhibitor-9 (PI-9; serpinB9); the only known inhibitor of human GZB, has been demonstrated in atherosclerosis. However, their role in atherosclerosis with the impact of type 2 diabetes mellitus (DM) as well as their contribution to hallmarks of atherosclerosis is not clear. SUBJECTS AND METHODS: ELISA for serum insulin, high sensitivity C-reactive protein (hsCRP) and GZB levels in atherosclerotic coronary artery diseases (CAD) patients were estimated in comparison to apparently healthy controls, while GZB, PRF and PI-9 mRNA expression levels were quantified by Taqman RT-PCR in both peripheral leucocytes and atherosclerotic tissues...
July 12, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28742824/how-do-rehomed-laboratory-beagles-behave-in-everyday-situations-results-from-an-observational-test-and-a-survey-of-new-owners
#2
Dorothea Döring, Ophelia Nick, Alexander Bauer, Helmut Küchenhoff, Michael H Erhard
When laboratory dogs are rehomed into private households, they experience an extreme change in their life situation. They leave their familiar, limited environment in the research facility and encounter a multitude of animate and inanimate stimuli in their new home. Although literature reports have described the experiences with rehoming as being mostly positive, scientific observations of the dogs in everyday situations have not been done. Hence, we conducted an observational test with 74 laboratory beagles 6 weeks after adoption in their new homes...
2017: PloS One
https://www.readbyqxmd.com/read/28742686/bioengineering-a-human-face-graft-the-matrix-of-identity
#3
Jérôme Duisit, Louis Maistriaux, Adriano Taddeo, Giuseppe Orlando, Virginie Joris, Emmanuel Coche, Catherine Behets, Jan Lerut, Chantal Dessy, Giulio Cossu, Esther Vögelin, Robert Rieben, Pierre Gianello, Benoît Lengelé
OBJECTIVE: During the last decade, face allotransplantation has been shown to be a revolutionary reconstructive procedure for severe disfigurements. However, offer to patients remains limited due to lifelong immunosuppression. To move forward in the field, a new pathway in tissue engineering is proposed. BACKGROUND: Our previously reported technique of matrix production of a porcine auricular subunit graft has been translated to a human face model. METHODS: 5 partial and 1 total face grafts were procured from human fresh cadavers...
July 24, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28742485/a-new-morphological-trait-in-forensic-identification-middle-phalangeal-hair-mph
#4
Kewal Krishan, Tanuj Kanchan
Middle phalangeal hairs (MPH) are present on the dorsal aspect of the middle phalange of the fingers except for the thumb. The MPH have been of interest to anthropologists, human biologists, clinicians, geneticists and anatomists in the past as a morphological trait of the human body. The anthropological value of MPH is well established in studying population variations, with implications for age, ancestry and sex differences. We are of the opinion that MPH may be used significantly for forensic identification purposes along with other morphological characteristics of the human body...
December 1, 2016: Science Progress
https://www.readbyqxmd.com/read/28742119/doestrare-a-statistical-test-to-identify-local-enrichments-in-rare-genomic-variants-associated-with-disease
#5
Elodie Persyn, Matilde Karakachoff, Solena Le Scouarnec, Camille Le Clézio, Dominique Campion, French Exome Consortium, Jean-Jacques Schott, Richard Redon, Lise Bellanger, Christian Dina
Next-generation sequencing technologies made it possible to assay the effect of rare variants on complex diseases. As an extension of the "common disease-common variant" paradigm, rare variant studies are necessary to get a more complete insight into the genetic architecture of human traits. Association studies of these rare variations show new challenges in terms of statistical analysis. Due to their low frequency, rare variants must be tested by groups. This approach is then hindered by the fact that an unknown proportion of the variants could be neutral...
2017: PloS One
https://www.readbyqxmd.com/read/28742076/altered-neurite-morphology-and-cholinergic-function-of-induced-pluripotent-stem-cell-derived-neurons-from-a-patient-with-kleefstra-syndrome-and-autism
#6
J Nagy, J Kobolák, S Berzsenyi, Z Ábrahám, H X Avci, I Bock, Z Bekes, B Hodoscsek, A Chandrasekaran, A Téglási, P Dezső, B Koványi, E T Vörös, L Fodor, T Szél, K Németh, A Balázs, A Dinnyés, B Lendvai, G Lévay, V Román
The aim of the present study was to establish an in vitro Kleefstra syndrome (KS) disease model using the human induced pluripotent stem cell (hiPSC) technology. Previously, an autism spectrum disorder (ASD) patient with Kleefstra syndrome (KS-ASD) carrying a deleterious premature termination codon mutation in the EHMT1 gene was identified. Patient specific hiPSCs generated from peripheral blood mononuclear cells of the KS-ASD patient were differentiated into post-mitotic cortical neurons. Lower levels of EHMT1 mRNA as well as protein expression were confirmed in these cells...
July 25, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28742036/study-of-temporal-effects-on-subjective-video-quality-of-experience
#7
Christos G Bampis, Zhi Li, Anush K Moorthy, Ioannis Katsavounidis, Anne Aaron, Alan C Bovik
HTTP adaptive streaming is being increasingly deployed by network content providers such as Netflix and YouTube. By dividing video content into data chunks encoded at different bitrates, a client is able to request the appropriate bitrate for the segment to be played next based on the estimated network conditions. However, this can introduce a number of impairments, including compression artifacts and rebuffering events which can severely impact an end-user's quality of experience (QoE). We have recently created a new video quality database which simulates a typical video streaming application, using long video sequences and interesting Netflix content...
July 20, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28742002/cdc42-activation-state-affects-its-localization-and-protein-levels-in-fission-yeast
#8
Miguel Estravís, Sergio Antonio Rincón, Elvira Portales, Pilar Pérez, Beatriz Santos
Rho GTPases control polarized cell growth and are well-known regulators of exocytic and endocytic processes. Cdc42 is an essential GTPase, conserved from yeast to humans, that is critical for cell polarization. Cdc42 is negatively regulated by the GTPase-activating proteins (GAPs) and the GDP dissociation inhibitors (GDIs), and positively regulated by guanine nucleotide exchange factors (GEFs). Cdc42 GTPase can be found in a GTP- or GDP-bound state, which determines the ability to bind downstream effector proteins and activate signalling pathways...
July 26, 2017: Microbiology
https://www.readbyqxmd.com/read/28741862/in-vivo-comparison-of-jellyfish-and-bovine-collagen-sponges-as-prototype-medical-devices
#9
Jonathan P Widdowson, Alex J Picton, Valerie Vince, Chris J Wright, Andrew Mearns-Spragg
Jellyfish have emerged as a source of next generation collagen that is an attractive alternative to existing sources, such as bovine and porcine, due to a plentiful supply and providing a safer source through lack of bovine spongiform encephalopathy (BSE) transmission risk and potential viral vectors, both of which could be transmitted to humans. Here we compare collagen implantable sponges derived for the first time from the Rhizostoma pulmo jellyfish. A further novelty for the research was that there was a comparison for sponges that were either uncrosslinked or crosslinked using 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC), and an assessment on how this affected resorption, as well as their biocompatibility compared to bovine type I collagen sponges...
July 25, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28741700/financial-aspects-of-organ-procurement-from-deceased-donors-in-the-usa-relevance-to-xenotransplantation
#10
REVIEW
Ryan J Saari, David K C Cooper
When clinical xenotransplantation is introduced, the costs associated with acquisition of a genetically engineered pig organ are as yet unknown. How will these costs compare with those currently associated with the acquisition of deceased human organs? An understanding of the financial aspects of deceased organ and tissue procurement in the USA is therefore worthwhile. We have therefore attempted to review certain economic aspects of non-profit and for-profit organizations that provide cadaveric organs and/or tissues for purposes of transplantation into patients with end-stage organ failure, cellular deficiencies, or in need of reconstructive procedures...
July 25, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28741660/is-overimitation-a-uniquely-human-phenomenon-insights-from-human-children-as-compared-to-bonobos
#11
Zanna Clay, Claudio Tennie
Imitation is a key mechanism of human culture and underlies many of the intricacies of human social life, including rituals and social norms. Compared to other animals, humans appear to be special in their readiness to copy novel actions as well as those that are visibly causally irrelevant. This study directly compared the imitative behavior of human children to that of bonobos, our understudied great ape relatives. During an action-copying task involving visibly causally irrelevant actions, only 3- to 5-year-old children (N = 77) readily copied, whereas no bonobo from a large sample did (N = 46)...
July 24, 2017: Child Development
https://www.readbyqxmd.com/read/28741276/the-use-of-a-biphasic-calcium-phosphate-in-a-maxillary-sinus-floor-elevation-procedure-a-clinical-radiological-histological-and-histomorphometric-evaluation-with-9-and-12-month-healing-times
#12
W F Bouwman, N Bravenboer, J W F H Frenken, C M Ten Bruggenkate, E A J M Schulten
BACKGROUND: This study evaluates the clinical, radiological, histological, and histomorphometric aspects of a fully synthetic biphasic calcium phosphate (BCP) (60% hydroxyapatite and 40% ß-tricalcium phosphate), used in a human maxillary sinus floor elevation (MSFE) procedure with 9- and 12-month healing time. METHODS: A unilateral MSFE procedure, using 100% BCP, was performed in two series of five patients with healing times of 9 and 12 months respectively. Clinical and radiological parameters were measured up to 5 years postoperatively...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28741141/detonation-nanodiamonds-are-promising-nontoxic-delivery-system-for-urothelial-cells
#13
Daša Zupančič, Mateja Erdani Kreft, Maja Grdadolnik, Dimitar Mitev, Aleš Iglič, Peter Veranič
Detonation nanodiamonds (DNDs) are carbon-based nanomaterials that are among the most promising nanoparticles available for biomedical applications so far. This is due to their biocompatibility, which could be contributed to their inert core and conformable surface nature. However, DNDs cytotoxicity for urothelial cells and the routes of their internalization remains an open question in the aspect of nanodiamond surface. We therefore analyzed four types of DNDs for cytotoxicity and internalization with normal urothelial cells and two types of cancer urothelial cell lines in vitro...
July 24, 2017: Protoplasma
https://www.readbyqxmd.com/read/28741133/african-and-caribbean-nurses-decisions-about-hiv-testing-a-mixed-methods-study
#14
Jean N Harrowing, Nancy Edwards, Solina Richter, Karin Minnie, Tania Rae
Nurses in Jamaica, Kenya, South Africa, and Uganda are at risk for occupational exposure to HIV. Little is known about the experiences and policy supports related to nurses having themselves tested for the virus. This article reports a mixed-methods study about contextual influences on nurses' decision-making about HIV testing. Individual and focus group interviews, as well as a questionnaire on workplace polices and quality assurance and a human resource management assessment tool provided data. Fear of a positive diagnosis and stigma and lack of confidentiality along with gaps in the policy environment contributed to indecision about testing...
July 24, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28741111/label-free-fluorescence-turn-on-aptasensor-for-prostate-specific-antigen-sensing-based-on-aggregation-induced-emission-silica-nanospheres
#15
Rong-Mei Kong, Xiaobin Zhang, Lu Ding, Daoshan Yang, Fengli Qu
Fluorescent light-up probes based on aggregation-induced emission (AIE)-active molecules have recently attracted great research interest due to the intelligent fluorescence activation mechanism and high sensitivity. In this work, an AIE-silica nanosphere (SiO2 NP)-based label-free fluorescent aptasensor for the sensitive "turn-on" detection of prostate-specific antigen (PSA) is reported for the first time. The positively charged amino-functionalized SiO2 NPs were used as efficient nanocapturer to electrostatically adsorb single-stranded PSA aptamer (PA) to form SiO2 NP-PA nanocomposite as well as adsorb negatively charged tetraphenylethylene derivative 3 (TPE3) to form AIE-SiO2 NP nanocomposite...
July 24, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28741110/biosensor-of-alkaline-phosphatase-based-on-non-fluorescent-fret-of-eu-3-doped-oxide-nanoparticles-and-phosphorylated-peptide-labeled-with-cyanine-dye
#16
Fan Shi Li, Ya Ling Zhang, Xia Bing Li, Bao Lin Li, Yi Feng Liu
Dephosphorylation of biomolecules under the catalysis of alkaline phosphatase (ALP) is a critical physiological process. Abnormal levels of ALP activity have been associated with a number of diseases; thus, a simple and sensitive assay of ALP activity is highly demanded. Herein, to simulate biological conditions, we labeled a hydrosoluble phosphorylated heptapeptide Gly-Pro-Gly-Asn-p-Tyr-Gly-Ala (pGA) with aminated heptamethine cyanine dye (Cy) to give a low fluorescent labeled peptide Cy-pGA. The synthesized Cy-pGA and Eu(3+)-doped oxide Y0...
July 24, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28741010/perception-of-a-single-session-pre-in-vitro-fertilisation-counselling-service-and-attitudes-towards-support-group-a-survey-of-patients-in-singapore
#17
Gaik Suan Lim, Reshmi Karayan Kayanoth, Birit Fp Broekman, Cornelia Yi Chee
INTRODUCTION: This study aimed to investigate patients' evaluation of a compulsory pre-in vitro fertilisation (IVF) counselling session in Singapore and determine their attitudes towards attending a support group during IVF treatment. METHODS: 464 patients due to undergo their first IVF treatment were recruited at the Clinic for Human Reproduction, National University Hospital, Singapore. All patients attended a counselling session conducted by a clinical psychologist trained in infertility counselling prior to IVF treatment...
July 25, 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/28740850/the-role-of-dog-population-management-in-rabies-elimination-a-review-of-current-approaches-and-future-opportunities
#18
REVIEW
Louise H Taylor, Ryan M Wallace, Deepashree Balaram, Joann M Lindenmayer, Douglas C Eckery, Beryl Mutonono-Watkiss, Ellie Parravani, Louis H Nel
Free-roaming dogs and rabies transmission are integrally linked across many low-income countries, and large unmanaged dog populations can be daunting to rabies control program planners. Dog population management (DPM) is a multifaceted concept that aims to improve the health and well-being of free-roaming dogs, reduce problems they may cause, and may also aim to reduce dog population size. In theory, DPM can facilitate more effective rabies control. Community engagement focused on promoting responsible dog ownership and better veterinary care could improve the health of individual animals and dog vaccination coverage, thus reducing rabies transmission...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28740731/comparing-new-generation-candidate-vaccines-against-human-orthopoxvirus-infections
#19
R A Maksyutov, S N Yakubitskyi, I V Kolosova, S N Shchelkunov
The lack of immunity to the variola virus in the population, increasingly more frequent cases of human orthopoxvirus infection, and increased risk of the use of the variola virus (VARV) as a bioterrorism agent call for the development of modern, safe vaccines against orthopoxvirus infections. We previously developed a polyvalent DNA vaccine based on five VARV antigens and an attenuated variant of the vaccinia virus (VACV) with targeted deletion of six genes (VACΔ6). Independent experiments demonstrated that triple immunization with a DNA vaccine and double immunization with VACΔ6 provide protection to mice against a lethal dose (10 LD50) of the ectromelia virus (ECTV), which is highly pathogenic for mice...
April 2017: Acta Naturae
https://www.readbyqxmd.com/read/28740613/synthesis-and-biological-evaluation-of-paclitaxel-and-camptothecin-prodrugs-on-the-basis-of-2-nitroimidazole
#20
Chen Jin, Shuai Wen, Qiumeng Zhang, Qiwen Zhu, Jiahui Yu, Wei Lu
Due to the low esterase activity in human plasma, many ester and carbonate prodrugs tested in humans may be less effective than that in preclinical animals. In this letter, PTX and SN-38 were attached to the N-1 position of 2-nitroimidazole via a carbonate linker. Presumably, 2-aminoimidazole may help promote the intramolecular hydrolysis of the carbonate bond. The prodrugs exhibited a considerable stability in buffers at different pH values as well as in human plasma. Furthermore, a rapid reduction was exhibited in the presence of nitroreductase...
July 13, 2017: ACS Medicinal Chemistry Letters
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