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https://www.readbyqxmd.com/read/28444814/chronic-antibody-mediated-rejection-in-nonhuman-primate-renal-allografts-validation-of-human-histological-and-molecular-phenotypes
#1
B A Adam, R N Smith, I A Rosales, M Matsunami, B Afzali, T Oura, A B Cosimi, T Kawai, R B Colvin, M Mengel
Molecular testing represents a promising adjunct for the diagnosis of antibody-mediated rejection (AMR). Here we apply a novel gene expression platform in sequential formalin-fixed paraffin-embedded (FFPE) samples from nonhuman primate (NHP) renal transplants. We analyzed 34 previously-described gene transcripts related to AMR in humans in 197 archival NHP samples, including 102 from recipients that developed chronic AMR, 80 from recipients without AMR, and 15 normal native nephrectomies. Three endothelial genes (VWF, DARC, CAV1), derived from 10-fold cross-validation ROC curve analysis, demonstrated excellent discrimination between AMR and non-AMR samples (AUC=0...
April 26, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28444189/environmental-enrichment-in-the-21st-century
#2
Kristine Coleman, Melinda A Novak
More than a quarter of a century has elapsed since the Animal Welfare Act mandated that research facilities develop and follow a plan to promote the psychological well-being of captive primates. Since passage of this law, considerable effort and resources have been directed to designing environmental enrichment strategies in an effort to improve animal welfare. These plans typically consist of environmental enrichment and socialization efforts. While environmental enhancement has undergone a great deal of improvement in the past 25 years, it should be viewed as a continual work in progress, which takes advantage of emergent and future technologies...
April 21, 2017: ILAR Journal
https://www.readbyqxmd.com/read/28444134/characterization-of-foxo1-3-and-4-transcription-factors-in-ovaries-of-fetal-prepubertal-and-adult-rhesus-macaques
#3
Alison Y Ting, Mary B Zelinski
The phosphoinositide 3-kinase/AKT signaling pathway negatively regulates follicle activation via the forkhead box O (FOXO) transcription factor in rodents. FOXO3 knockout mice exhibit global activation of primordial follicles leading to early depletion of ovarian follicles and subsequent infertility. Whether a similar mechanism for follicle activation exists in the primate ovary is unclear. In the current study, protein localization of FOXO1, 3 and 4 as well as their upstream regulator, AKT/p-AKT, were examined in rhesus macaque ovaries of 3 developmental stages: fetal, prepubertal and adult...
April 22, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28443480/adverse-placental-perfusion-and-pregnancy-outcomes-in-a-new-nonhuman-primate-model-of-gestational-protein-restriction
#4
Victoria H J Roberts, Jamie O Lo, Katherine S Lewandowski, Peter Blundell, Kevin L Grove, Christopher D Kroenke, Elinor L Sullivan, Charles T Roberts, Antonio E Frias
Maternal malnutrition during pregnancy impacts fetal growth, with developmental consequences that extend to later life outcomes. In underdeveloped countries, this malnutrition typically takes the form of poor dietary protein content and quality, even if adequate calories are consumed. Here, we report the establishment of a nonhuman primate model of gestational protein restriction (PR) in order to understand how placental function and pregnancy outcomes are affected by protein deficiency. Rhesus macaques were assigned to either a control diet containing 26% protein or switched to a 13% PR diet prior to conception and maintained on this PR diet throughout pregnancy...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28442999/roles-of-multiple-globus-pallidus-territories-of-monkeys-and-humans-in-motivation-cognition-and-action-an-anatomical-physiological-and-pathophysiological-review
#5
REVIEW
Yosuke Saga, Eiji Hoshi, Léon Tremblay
The globus pallidus (GP) communicates with widespread cortical areas that support various functions, including motivation, cognition and action. Anatomical tract-tracing studies revealed that the anteroventral GP communicates with the medial prefrontal and orbitofrontal cortices, which are involved in motivational control; the anterodorsal GP communicates with the lateral prefrontal cortex, which is involved in cognitive control; and the posterior GP communicates with the frontal motor cortex, which is involved in action control...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28441965/evaluation-of-a-dna-a%C3%AE-42-vaccine-in-adult-rhesus-monkeys-macaca-mulatta-antibody-kinetics-and-immune-profile-after-intradermal-immunization-with-full-length-dna-a%C3%AE-42-trimer
#6
Doris Lambracht-Washington, Min Fu, Pat Frost, Roger N Rosenberg
BACKGROUND: Aggregated amyloid-β peptide 1-42 (Aβ42), derived from the cellular amyloid precursor protein, is one of the pathological hallmarks of Alzheimer's disease (AD). Although active immunization against Aβ42 peptide was successful in AD mouse models and led to removal of plaques and improved memory, a similar clinical trial in humans (Aβ42 peptide immunization with QS-21 adjuvant) was stopped in phase II, when 6% of the treated patients developed encephalitis. Currently ongoing passive immunizations with the injection of preformed monoclonal antibodies against different epitopes within the Aβ1-42 peptide, which do not lead to activation of the immune system, have shown some effects in slowing AD pathology...
April 26, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28441902/nonhuman-primates-as-models-for-the-discovery-and-development-of-radiation-countermeasures
#7
Vijay K Singh, Ayodele O Olabisi
Despite significant scientific advances over the past six decades toward the development of safe and effective radiation countermeasures for humans using animal models, only two pharmaceutical agents have been approved by United States Food and Drug Administration (US FDA) for hematopoietic acute radiation syndrome (H-ARS). Additional research efforts are needed to further develop large animal models for improving the prediction of clinical safety and effectiveness of radiation countermeasures for ARS and delayed effects of acute radiation exposure (DEARE) in humans...
April 25, 2017: Expert Opinion on Drug Discovery
https://www.readbyqxmd.com/read/28441286/behavior-of-americium-in-simulated-wounds-in-nonhuman-primates
#8
Deepesh Poudel, Raymond A Guilmette, Luiz Bertelli, John A Klumpp, Richard R Brey
An americium solution injected intramuscularly into several nonhuman primates (NHPs) was found to behave differently than predicted by the wound models described in the NCRP Report 156. This was because the injection was made along with a citrate solution, which is known to be more soluble than chlorides, oxides, or nitrates on which the NCRP Report was based. A multi-exponential wound model specific to the injected americium solution was developed based on the retention in the intramuscular sites. The model was coupled with the americium systemic model to interpret the urinary excretion data and assess the intake, and it was determined that the models were adequate to predict early urinary excretion in most cases but unable to predict late urinary excretion...
June 2017: Health Physics
https://www.readbyqxmd.com/read/28435095/application-of-advanced-preclinical-models-and-methods-in-anesthetic-neurotoxicity-research
#9
REVIEW
Cheng Wang, Xuan Zhang, Fang Liu
Recently, there has been increasing concern regarding the potential of anesthetics to disturb the long-term function of the central nervous system (CNS). The field of anesthesia-related toxicology, therefore, has engaged multiple scientific disciplines and utilized a variety of pre-clinical research models in an attempt to identify the basic characteristics of the anesthetic agents that may produce acute and/or chronic adverse effects on the CNS. This review discusses how the application of advanced research approaches and models, such as the nonhuman primate, neural stem cell-derived organotypic slice cultures and/or organs-on-chips systems, can serve as translational models of infantile anesthetic exposure...
April 20, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/28434076/%C3%AE-synuclein-nonhuman-primate-models-of-parkinson-s-disease
#10
REVIEW
David J Marmion, Jeffrey H Kordower
Proper understanding of the mechanism(s) by which α-synuclein misfolds and propagates may hold the key to unraveling the complex pathophysiology of Parkinson's disease. A more complete understanding of the disease itself, as well as establishing animal models that fully recapitulate pathological and functional disease progression, are needed to develop treatments that will delay, halt or reverse the disease course. Traditional neurotoxin-based animal models fail to mimic crucial aspects of Parkinson's and thus are not relevant for the study of neuroprotection and disease-modifying therapies...
April 22, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28428292/shigella-draft-genome-sequences-resources-for-food-safety-and-public-health
#11
Allison M Weis, Brent Gilpin, Bihua C Huang, Nguyet Kong, Poyin Chen, Bart C Weimer
Shigella is a major foodborne pathogen that infects humans and nonhuman primates and is the major cause of dysentery and reactive arthritis worldwide. This is the initial public release of 16 Shigella genome sequences from four species sequenced as part of the 100K Pathogen Genome Project.
April 20, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28425496/3-4-methylenedioxymethamphetamine-increases-affiliative-behaviors-in-squirrel-monkeys-in-a-serotonin-2a-receptor-dependent-manner
#12
Elizabeth G Pitts, Adelaide R Minerva, Erika B Oliver, Jordan N Kohn, Meghan T Logun, Agnieszka Sulima, Kenner C Rice, Leonard L Howell
3,4-methylenedioxymethamphetamine (MDMA) increases sociality in humans and animals. Release of serotonin (5-HT) is thought to play an important role in the increase in social behaviors, but the mechanisms underlying these effects are poorly understood. Despite the advantages of nonhuman primate models, no studies have examined the mechanisms of the social effects of MDMA in nonhuman primates. The behavior and vocalizations of four group-housed squirrel monkeys were examined following administration of MDMA, its enantiomers, and methamphetamine...
April 20, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28422948/beyond-the-uterine-environment-nonhuman-primate-model-to-investigate-maternal-fetal-and-neonatal-outcomes-following-chronic-intrauterine-infection
#13
Meredith A Kelleher, Zheng Liu, Xiaojie Wang, Christopher D Kroenke, Lisa A Houser, Brandy L Dozier, Lauren D Martin, Ken B Waites, Cindy McEvoy, Robert L Schelonka, Peta L Grigsby
BACKGROUND: Intrauterine infection is a significant cause of early preterm birth. We have developed a fetal-neonatal model in the rhesus macaque to determine the impact of chronic intrauterine infection with Ureaplasma parvum on early neonatal reflexes and brain development. METHODS: Time-mated, pregnant rhesus macaques were randomized to be inoculated with U. parvum (serovar 1; 10(5)cfu) or control media at ~120 dGA. Neonates were delivered by elective hysterotomy at 135-147 dGA (term=167d) stabilized and cared for in our nonhuman primate neonatal intensive care unit...
April 19, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28422784/b-cell-abnormalities-and-impact-on-antibody-response-in-hiv-infection
#14
Alessandra Noto, Giuseppe Pantaleo
PURPOSE OF REVIEW: The purpose of the present review is to provide an update on the current development in the field of broadly neutralizing antibodies (bNabs) and their potential use in the prevention and therapeutic settings, and an evaluation of the B-cell abnormalities that may impair antibody responses in HIV infection. RECENT FINDINGS: Major advances have been achieved in the characterization of bNabs directed against different vulnerable regions of HIV Envelope (Env)...
May 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/28419201/functional-imaging-of-audio-visual-selective-attention-in-monkeys-and-humans-how-do-lapses-in-monkey-performance-affect-cross-species-correspondences
#15
Teemu Rinne, Ross S Muers, Emma Salo, Heather Slater, Christopher I Petkov
The cross-species correspondences and differences in how attention modulates brain responses in humans and animal models are poorly understood. We trained 2 monkeys to perform an audio-visual selective attention task during functional magnetic resonance imaging (fMRI), rewarding them to attend to stimuli in one modality while ignoring those in the other. Monkey fMRI identified regions strongly modulated by auditory or visual attention. Surprisingly, auditory attention-related modulations were much more restricted in monkeys than humans performing the same tasks during fMRI...
April 13, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28418764/disease-surveillance-of-california-ground-squirrels-spermophilus-beecheyi-in-a-drive-through-zoo-in-oregon-usa
#16
Julia Ter Beest, Andrew Cushing, Modesto McClean, Wendy Hsu, Robert Bildfell
Rodents and other small wild mammals are often considered to be pests and vectors for disease in zoos that house small populations of valuable threatened and endangered animals. In 2005, three nonhuman primates at a drive-through zoo in Oregon, USA, acquired tularemia from an unknown source. Due to an abundance of California ground squirrels ( Spermophilus beecheyi ) on zoo grounds, we instituted serosurveillance of this species from July through September 2008 to determine the prevalence of antibodies against pathogens considered to be potentially transmissible to collection animals...
April 18, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28418297/survey-of-treponemal-infections-in-free-ranging-and-captive-macaques-1999-2012
#17
Amy R Klegarth, Chigozie A Ezeonwu, Aida Rompis, Benjamin P Y-H Lee, Nantiya Aggimarangsee, Mukesh Chalise, John Cortes, M Feeroz, Barbara J Molini, Bess C Godornes, Michael Marks, Michael Schillaci, Gregory Engel, Sascha Knauf, Sheila A Lukehart, Lisa Jones-Engel
Survey results showed treponemal infection among pet macaques in Southeast Asia, a region with a high prevalence of human yaws. This finding, along with studies showing treponemal infection in nonhuman primates in Africa, should encourage a One Health approach to yaws eradication and surveillance activities, possibly including monitoring of nonhuman primates in yaws-endemic regions.
May 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28413809/preclinical-imaging-of-iridocorneal-angle-and-fundus-using-a-modified-integrated-flexible-handheld-probe
#18
Xun Jie Jeesmond Hong, Vengalathunadakal K Shinoj, Vadakke Matham Murukeshan, Mani Baskaran, Tin Aung
A flexible handheld imaging probe consisting of a [Formula: see text] charge-coupled device camera, light-emitting diode light sources, and near-infrared laser source is designed and developed. The imaging probe is designed with specifications to capture the iridocorneal angle images and posterior segment images. Light propagation from the anterior chamber of the eye to the exterior is considered analytically using Snell's law. Imaging of the iridocorneal angle region and fundus is performed on ex vivo porcine samples and subsequently on small laboratory animals, such as the New Zealand white rabbit and nonhuman primate, in vivo...
April 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28406569/ischial-form-as-an-indicator-of-bipedal-kinematics-in-early-hominins-a-test-using-extant-anthropoids
#19
Kristi L Lewton, Jeremiah E Scott
Human ischia contrast with those of great apes in being craniocaudally short and dorsally projecting. This configuration is thought to facilitate greater hip extension in humans during bipedal locomotion. This link has been used to infer kinematics in early hominins, but the consequences of variation in ischial configuration for gait remain uncertain. Kinematic data for a limited sample of extant nonhuman primates demonstrate that there is variation in hip extension in these taxa during bipedal behaviors-specifically, Hylobates and Ateles are capable of greater extension than Pan and Macaca...
May 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28406568/dimorphism-in-the-size-and-shape-of-the-birth-canal-across-anthropoid-primates
#20
Elizabeth A Moffett
It has long been noted that the human female birth canal is well adapted to giving birth to large-brained neonates. However, several species of nonhuman primates give birth to large-headed neonates compared to the maternal birth canal. The presence of such large cephalopelvic proportions in nonhuman primates presents the question of whether dimorphism in the birth canals of these other species is related to obstetric demand, as such dimorphism is presumed to be in humans. In this study, the hypothesis that either the presence or magnitude of dimorphism in the birth canal is related to large cephalopelvic proportions among anthropoid primates is directly tested...
May 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
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