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https://www.readbyqxmd.com/read/29333745/increased-sensitivity-and-high-specificity-of-indirect-immunofluorescence-in-detecting-igg-subclasses-for-diagnosis-of-bullous-pemphigoid
#1
J Jankásková, O N Horváth, R Varga, P Arenberger, E Schmidt, T Ruzicka, M Sárdy
BACKGROUND: Indirect immunofluorescence (IIF) microscopy on monkey oesophagus is an important assay for the diagnosis of bullous pemphigoid (BP). Its relatively low sensitivity (60-80%) may be partly due to insufficient detection of minor IgG subclasses. AIM: To determine the operating characteristics of an IgG subclass in IIF. METHODS: We designed a retrospective, dual-centre, controlled cohort study on sera from 64 BP sera that had been rated as false negatives by traditional IIF microscopy, and assessed circulating IgG1 , IgG3 and IgG4 autoantibodies...
January 14, 2018: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29333420/technique-for-orthotopic-liver-transplantation-in-cynomolgus-monkeys-macaca-fascicularis
#2
Kyo Won Lee, Chan Woo Cho, Hyojun Park, Gyu-Seong Choi, Jae Berm Park, Sung Joo Kim
Purpose: Recent studies investigating new strategies to modulate the immune system have utilized animal models of liver transplantation (LT). However, the anhepatic phase (AHP) remains a crucial problem in LT. The aim of the present study is to introduce a technique for successful orthotopic LT in cynomolgus monkeys using an early-reperfusion strategy. Methods: Orthotopicallo-LT was performed with seven donor/recipient pairs of cynomolgus monkeys. Results: In 2 recipients, liver allografts were perfused after suprahepatic inferior vena cava (SHIVC), portal vein (PV), and infrahepatic inferior vena cava (IHIVC) anastomosis...
January 2018: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/29332163/the-monkey-is-not-always-a-god-attitudinal-differences-toward-crop-raiding-macaques-and-why-it-matters-for-conflict-mitigation
#3
Shaurabh Anand, Vilakkathala Vijayan Binoy, Sindhu Radhakrishna
Attitudinal differences toward wildlife have important implications for conflict management and when the species in question have strong cultural and religious associations, conflict mitigation becomes a challenging endeavor. We investigated farmers' attitudes toward two different crop-raiding macaque species, the rhesus macaque in northern India, and the bonnet macaque in southern India. Apart from regional differences in attitudes, we also assessed temporal changes in attitude toward the rhesus macaque. We carried out household surveys using a semistructured questionnaire to collect data...
January 13, 2018: Ambio
https://www.readbyqxmd.com/read/29332128/pharmacologic-characterization-of-omidenepag-isopropyl-a-novel-selective-ep2-receptor-agonist-as-an-ocular-hypotensive-agent
#4
Tomoko Kirihara, Takazumi Taniguchi, Kenzo Yamamura, Ryo Iwamura, Kenji Yoneda, Noriko Odani-Kawabata, Atsushi Shimazaki, Takeshi Matsugi, Naveed Shams, Jin-Zhong Zhang
Purpose: The objective of this study was to investigate the pharmacologic characteristics of omidenepag isopropyl (OMDI), a compound developed as a novel intraocular pressure (IOP)-lowering agent, with better IOP control and fewer side effects than other prostanoid receptor agonists such as prostaglandin F receptor (FP) agonists. Methods: Binding activities of OMDI and its hydrolyzed form, omidenepag (OMD), to human recombinant prostanoid receptors (DP1-2, EP1-4, FP, and IP) were evaluated...
January 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29332044/does-the-genetic-feature-of-the-chinese-tree-shrew-tupaia-belangeri-chinensis-support-its-potential-as-a-viable-model-for-alzheimer-s-disease-research
#5
Yu Fan, Rongcan Luo, Ling-Yan Su, Qun Xiang, Dandan Yu, Ling Xu, Jia-Qi Chen, Rui Bi, Dong-Dong Wu, Ping Zheng, Yong-Gang Yao
Alzheimer's disease (AD) is a neurodegenerative disease with increasing incidence across the world and no cure at the present time. An ideal animal model would facilitate the understanding of the pathogenesis of AD and discovery of potential therapeutic targets. The Chinese tree shrew (Tupaia belangeri chinensis) has a closer genetic affinity to primates relative to rodents, and can attain ages of 8 years or older, which represents another advantage for the study of neurodegenerative diseases such as AD compared to primates...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29331830/fetal-development-of-the-poeppig-s-woolly-monkey-lagothrix-poeppigii
#6
Rafael Dos Santos de Andrade, Frederico Ozanan Barros Monteiro, Hani Rocha El Bizri, Wilter Ricardo Russiano Vicente, Diva Anelie de Araujo Guimarães, Pedro Mayor
The intrauterine development is an evolutionary strategy that prepares the neonate for extra-uterine life, thus providing important information on the life history of species. In this study, we described the external and internal morphology of 25 fetuses of Poeppig's woolly monkeys (Lagothrix poeppigii) by taking advantage of a 10-year participatory collection of biological samples originated from animals hunted for subsistence purposes in the Peruvian Amazon. Logistic regressions estimated the probability of occurrence of each external morphological characteristic in relation to the crown-rump length (CRL)...
December 8, 2017: Theriogenology
https://www.readbyqxmd.com/read/29331507/adropin-an-endocrine-link-between-the-biological-clock-and-cholesterol-homeostasis
#7
Sarbani Ghoshal, Joseph R Stevens, Cyrielle Billon, Clemence Girardet, Sadichha Sitaula, Arthur S Leon, D C Rao, James S Skinner, Tuomo Rankinen, Claude Bouchard, Marinelle V Nuñez, Kimber L Stanhope, Deborah A Howatt, Alan Daugherty, Jinsong Zhang, Matthew Schuelke, Edward P Weiss, Alisha R Coffey, Brian J Bennett, Praveen Sethupathy, Thomas P Burris, Peter J Havel, Andrew A Butler
OBJECTIVE: Identify determinants of plasma adropin concentrations, a secreted peptide translated from the Energy Homeostasis Associated (ENHO) gene linked to metabolic control and vascular function. METHODS: Associations between plasma adropin concentrations, demographics (sex, age, BMI) and circulating biomarkers of lipid and glucose metabolism were assessed in plasma obtained after an overnight fast in humans. The regulation of adropin expression was then assessed in silico, in cultured human cells, and in animal models...
December 30, 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29331450/mapping-stimulus-feature-selectivity-in-macaque-v1-by-two-photon-ca2-imaging-encoding-model-analysis-of-fluorescence-responses-to-natural-movies
#8
REVIEW
Koji Ikezoe, Mahya Amano, Shinji Nishimoto, Ichiro Fujita
In vivo calcium (Ca2+) imaging using two-photon microscopy allows activity to be monitored simultaneously from hundreds of individual neurons within a local population. While this allows us to gain important insights into how cortical neurons represent sensory information, factors such as photo-bleaching of the Ca2+ indicator limit imaging duration (and thus the numbers of stimuli that can be tested), which in turn hampers the full characterization of neuronal response properties. Here, we demonstrate that using an encoding model combined with presentation of natural movies results in detailed characterization of receptive field (RF) properties despite the relatively short time for data collection...
January 10, 2018: NeuroImage
https://www.readbyqxmd.com/read/29330949/functional-morphology-of-mimetic-musculature-in-primates-how-social-variables-and-body-size-stack-up-to-phylogeny
#9
Anne M Burrows
Mammalian skeletal muscle is influenced by the functional demands placed upon it. Functional morphology of facial expression musculature, or mimetic musculature, is largely unknown. Recently, primate mimetic musculature has been shown to respond to demands associated with social factors. Body size has also been demonstrated to affect many aspects of primate functional morphology and evolutionary morphology. The present study was designed to further examine the role of social variables and body size in influencing the morphology of primate mimetic musculature using a broad phylogenetic range of primates, primates with varying body sizes, and those that exploit differing time of day activity cycles and social group sizes...
February 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29330836/pathogenesis-of-non-alcoholic-fatty-liver-disease-mediated-by-yap
#10
Ping Chen, Qihui Luo, Chao Huang, Qi Gao, Like Li, Jingfei Chen, Bing Chen, Wentao Liu, Wen Zeng, Zhengli Chen
OBJECTIVE: This study aimed to investigate the mechanism of the interaction between Yes-associated protein (YAP) and transforming growth factor-β (TGF-β)/Smad signaling pathways in the development of non-alcoholic fatty liver disease (NAFLD). METHODS: Serum samples of monkeys with biopsy-proven NAFLD and healthy normal monkeys were used to measure fasting plasma glucose (FPG), low-density lipoprotein (LDL), high-density lipoprotein (HDL), triglyceride (TG) and albumin (ALB) with the BECKMAN CX5 PRO...
January 12, 2018: Hepatology International
https://www.readbyqxmd.com/read/29330501/novel-endogenous-simian-retroviral-integrations-in-vero-cells-implications-for-quality-control-of-a-human-vaccine-cell-substrate
#11
Chisato Sakuma, Tsuyoshi Sekizuka, Makoto Kuroda, Fumio Kasai, Kyoko Saito, Masaki Ikeda, Toshiyuki Yamaji, Naoki Osada, Kentaro Hanada
African green monkey (AGM)-derived Vero cells have been utilized to produce various human vaccines. The Vero cell genome harbors a variety of simian endogenous type D retrovirus (SERV) sequences. In this study, a transcriptome analysis showed that DNA hypomethylation released the epigenetic repression of SERVs in Vero cells. Moreover, comparative genomic analysis of three Vero cell sublines and an AGM reference revealed that the genomes of the sublines have ~80 SERV integrations. Among them, ~60 integrations are present within all three cell sublines and absent from the reference sequence...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330219/a-study-on-pharmacokinetics-of-bosentan-with-systems-modeling-part-2-prospectively-predicting-systemic-and-liver-exposure-in-healthy-subjects
#12
Rui Li, Emi Kimoto, Mark Niosi, David A Tess, Jian Lin, Larry M Tremaine, Li Di
Predicting human pharmacokinetics of novel compounds is a critical step in drug discovery and clinical study design, but continues to be a challenging task for hepatic transporter substrates, particularly in predicting their liver exposures. In this study, using bosentan as an example, we have prospectively predicted systemic exposure and (pseudo) steady state unbound liver-to-unbound plasma ratio (Kpuu) in healthy subjects using (1) a mechanistic approach solely based on in vitro hepatocyte assays, and (2) an approach based on hepatic process rates from monkey in vivo data but Michaelis-Menten constants from in vitro data...
January 12, 2018: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/29330156/application-of-receptor-theory-to-the-design-and-use-of-fixed-proportion-mu-opioid-agonist-and-antagonist-mixtures-in-rhesus-monkeys
#13
Jeremy C Cornelissen, Samuel Obeng, Kenner C Rice, Yan Zhang, S Stevens Negus, Matthew Banks
Receptor theory predicts that fixed-proportion mixtures of a competitive, reversible agonist (e.g. fentanyl) and antagonist (e.g. naltrexone) at a common receptor (e.g. mu opioid receptors; MOR) will result in antagonist proportion-dependent decreases in apparent efficacy of the mixtures and downward shifts in mixture dose-effect functions. The present study tested this hypothesis by evaluating behavioral effects of fixed-proportion fentanyl/naltrexone mixtures in a warm-water tail-withdrawal procedure in rhesus monkeys (n=4)...
January 12, 2018: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29330092/a-novel-double-antigen-sandwich-elisa-for-the-species-independent-detection-of-crimean-congo-hemorrhagic-fever-virus-specific-antibodies
#14
Miriam A Sas, Loic Comtet, Fabien Donnet, Marc Mertens, Zati Vatansever, Noel Tordo, Philippe Pourquier, Martin H Groschup
Crimean-Congo hemorrhagic fever (CCHF) is a tick-borne disease in humans caused by the CCHF virus (CCHFV). The detection of anti-CCHFV antibodies in animals is used to reveal infection risk areas. Therefore a simple, quick and reliable multispecies assay for the detection of CCHFV-specific antibodies is needed. This work presents the development and validation of a novel CCHF double-antigen ELISA for the detection of anti-CCHFV nucleoprotein antibodies. The test requires 30 μl of serum, and results are obtained within 90 min...
January 9, 2018: Antiviral Research
https://www.readbyqxmd.com/read/29329501/sustained-plasma-hepcidin-suppression-and-iron-elevation-by-anticalin-derived-hepcidin-antagonist-in-cynomolgus-monkey
#15
Andreas M Hohlbaum, Hendrik Gille, Stefan Trentmann, Maria Kolodziejczyk, Barbara Rattenstetter, Coby M Laarakkers, Galina Katzmann, Hans Jürgen Christian, Nicole Andersen, Andrea Allersdorfer, Shane A Olwill, Bernd Meibohm, Laurent P Audoly, Dorine W Swinkels, Rachel P L van Swelm
BACKGROUND AND PURPOSE: Anaemia of chronic disease (ACD) has been linked to iron restricted erythropoiesis imposed by high circulating levels of hepcidin, a 25 amino acid hepatocyte-derived peptide that controls systemic iron homeostasis. Here we report the engineering of the human lipocalin-derived, small protein-based Anticalin PRS-080 hepcidin antagonist with high affinity and selectivity. EXPERIMENTAL APPROACH: Anticalin- and hepcidin-specific pharmacokinetic/pharmacodynamic modelling was used to design and select the suitable drug candidate based on half life extension and duration of hepcidin suppression...
January 12, 2018: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29329408/an-orientation-map-for-disparity-defined-edges-in-area-v4
#16
Yang Fang, Ming Chen, Haoran Xu, Peichao Li, Chao Han, Jiaming Hu, Shude Zhu, Heng Ma, Haidong D Lu
Binocular disparity information is an important source of 3D perception. Neurons sensitive to binocular disparity are found in almost all major visual areas in nonhuman primates. In area V4, disparity processes are suggested for the purposes of 3D-shape representation and fine disparity perception. However, whether neurons in V4 are sensitive to disparity-defined edges used in shape representation is not clear. Additionally, a functional organization for disparity edges has not been demonstrated so far. With intrinsic signal optical imaging, we studied functional organization for disparity edges in the monkey visual areas V1, V2, and V4...
January 10, 2018: Cerebral Cortex
https://www.readbyqxmd.com/read/29327727/generation-of-a-precise-oct4-hrgfp-knockin-cynomolgus-monkey-model-via-crispr-cas9-assisted-homologous-recombination
#17
Yiqiang Cui, Yuyu Niu, Jiankui Zhou, Yongchang Chen, Yiwei Cheng, Shangang Li, Zongyong Ai, Chu Chu, Hong Wang, Bo Zheng, Xuejin Chen, Jiahao Sha, Xuejiang Guo, Xingxu Huang, Weizhi Ji
No abstract text is available yet for this article.
January 12, 2018: Cell Research
https://www.readbyqxmd.com/read/29327726/generation-of-knock-in-cynomolgus-monkey-via-crispr-cas9-editing
#18
Xuan Yao, Zhen Liu, Xing Wang, Yan Wang, Yan-Hong Nie, Liang Lai, Ruilin Sun, Linyu Shi, Qiang Sun, Hui Yang
No abstract text is available yet for this article.
January 12, 2018: Cell Research
https://www.readbyqxmd.com/read/29327652/acquisition-of-a-mental-strategy-to-control-a-virtual-tail-via-brain-computer-interface
#19
Ayaka Fujisawa, Shoko Kasuga, Takaharu Suzuki, Junichi Ushiba
The objective of the present study was to clarify the variation in and properties of mental images and policies used to regulate specific image selection when learning to control a brain-computer interface. Healthy volunteers performed a reaching task with a virtually generated monkey tail-like object on a computer monitor by regulating event-related desynchronization (ERD) on the buttock area of the sensorimotor cortex as recorded by electroencephalogram (EEG). Participants were instructed to find a free image by which the tail was well controlled...
January 12, 2018: Cognitive Neuroscience
https://www.readbyqxmd.com/read/29324822/biting-mechanics-and-niche-separation-in-a-specialized-clade-of-primate-seed-predators
#20
Justin A Ledogar, Theodora H Y Luk, Jonathan M G Perry, Dimitri Neaux, Stephen Wroe
We analyzed feeding biomechanics in pitheciine monkeys (Pithecia, Chiropotes, Cacajao), a clade that specializes on hard-husked unripe fruit (sclerocarpy) and resistant seeds (seed predation). We tested the hypothesis that pitheciine crania are well-suited to generate and withstand forceful canine and molar biting, with the prediction that they generate bite forces more efficiently and better resist masticatory strains than the closely-related Callicebus, which does not specialize on unripe fruits and/or seeds...
2018: PloS One
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