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https://www.readbyqxmd.com/read/28818716/positron-emission-tomography-pet-imaging-of-nicotine-induced-dopamine-release-in-squirrel-monkeys-using-18-f-fallypride
#1
Jennifer E Naylor, Takato Hiranita, Katelin S Matazel, Xuan Zhang, Merle G Paule, Amy K Goodwin
BACKGROUND: Nicotine, the principal psychoactive tobacco constituent, is thought to produce its reinforcing effects via actions within the mesolimbic dopamine (DA) system. The objective of the current study was to examine the effect of nicotine on DA D2/D3 receptor availability in the nonhuman primate brain with the use of the radioligand [(18)F]fallypride and positron emission tomography (PET). METHODS: Ten adult male squirrel monkeys were used in the current study...
August 8, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28817400/liver-xenotransplantation
#2
Madhukar S Patel, Nathan Louras, Parsia A Vagefi
PURPOSE OF REVIEW: There continues to be an inadequate organ supply and lack of effective temporary support, for patients with liver failure. The purpose of this review is to discuss recent progress in the field of orthotopic pig-to-nonhuman primate (NHP) liver xenotransplantation (LXT). RECENT FINDINGS: From 1968 to 2012, survival in pig-to-NHP LXT was limited to 9 days, initially due to hyperacute rejection which has been ameliorated through use of genetically engineered donor organs, but ultimately because of profound thrombocytopenia, thrombotic microangiopathy, and bleeding...
August 16, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28815964/sex-biased-dispersal-of-human-ancestors
#3
Yukimaru Sugiyama
Some anthropologists and primatologists have argued that, judging by extant chimpanzees and humans, which are female-biased dispersers, the common ancestors of humans and chimpanzees were also female-biased dispersers. It has been thought that sex-biased dispersal patterns have been genetically transmitted for millions of years. However, this character has changed many times with changes in environment and life-form during human evolution and historical times. I examined life-form and social organization of nonhuman primates, among them gatherers (foragers), hunter-gatherers, agriculturalists, industrialists, and modern and extant humans...
July 2017: Evolutionary Anthropology
https://www.readbyqxmd.com/read/28815382/spontaneous-cross-species-imitation-in-interactions-between-chimpanzees-and-zoo-visitors
#4
Tomas Persson, Gabriela-Alina Sauciuc, Elainie Alenkær Madsen
Imitation is a cornerstone of human development, serving both a cognitive function (e.g. in the acquisition and transmission of skills and knowledge) and a social-communicative function, whereby the imitation of familiar actions serves to maintain social interaction and promote prosociality. In nonhuman primates, this latter function is poorly understood, or even claimed to be absent. In this observational study, we documented interactions between chimpanzees and zoo visitors and found that the two species imitated each other at a similar rate, corresponding to almost 10% of all produced actions...
August 16, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28814515/fdg-uptake-in-lymphoid-tissue-serves-as-a-predictor-of-disease-outcome-in-the-nonhuman-primate-model-of-monkeypox-infection
#5
Julie Dyall, Reed F Johnson, Svetlana Chefer, Christopher Leyson, David Thomasson, Jurgen Seidel, Dan R Ragland, Russell Byrum, Catherine Jett, Jennifer A Cann, Marisa St Claire, Elaine Jagoda, Richard C Reba, Dima Hammoud, Joseph E Blaney, Peter B Jahrling
Real-time bioimaging of infectious disease processes may aid countermeasure development and lead to an improved understanding of pathogenesis. However, few studies have identified biomarkers for monitoring infections using in vivo imaging. Previously, we demonstrated that positron emission tomography/computed tomography (PET/CT) imaging with [(18)F]-fluorodeoxyglucose (FDG) can monitor monkeypox disease progression in vivo in nonhuman primates (NHPs). In this study, we investigated [(18)F]-FDG-PET/CT imaging of immune processes in lymphoid tissues to identify patterns of inflammation in the monkepox NHP model and to determine the value of [(18)F]-FDG-PET/CT as a biomarker for disease and treatment outcomes...
August 16, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28814183/diagnoses-and-treatment-of-dental-disorders-in-a-research-colony-of-macaca-fascicularis-a-case-series
#6
Philippe Roux, Muriel Brecheisen, Rafael de Carvalho, Alessandra Bergadano
During daily routine oral examinations in a research colony of nonhuman primates (NHPs, Macaca fascicularis), a variety of oral-dental lesions were identified. A dental care program was established based on these findings. Based on the presence of dental clinical signs and their severity, 31 animals were triaged to be examined and treated by a veterinarian. Clinical examination consisted of visual inspection using a periodontal probe/explorer and full or partial mouth dental radiographs. Treatment was performed during the same procedure...
September 2017: Journal of Veterinary Dentistry
https://www.readbyqxmd.com/read/28812736/the-evolution-and-population-diversity-of-human-specific-segmental-duplications
#7
Megan Y Dennis, Lana Harshman, Bradley J Nelson, Osnat Penn, Stuart Cantsilieris, John Huddleston, Francesca Antonacci, Kelsi Penewit, Laura Denman, Archana Raja, Carl Baker, Kenneth Mark, Maika Malig, Nicolette Janke, Claudia Espinoza, Holly A F Stessman, Xander Nuttle, Kendra Hoekzema, Tina A Lindsay-Graves, Richard K Wilson, Evan E Eichler
Segmental duplications contribute to human evolution, adaptation and genomic instability but are often poorly characterized. We investigate the evolution, genetic variation and coding potential of human-specific segmental duplications (HSDs). We identify 218 HSDs based on analysis of 322 deeply sequenced archaic and contemporary hominid genomes. We sequence 550 human and nonhuman primate genomic clones to reconstruct the evolution of the largest, most complex regions with protein-coding potential (N = 80 genes from 33 gene families)...
February 17, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812048/sensorimotor-rhythm-neurofeedback-as-adjunct-therapy-for-parkinson-s-disease
#8
Ingrid H C H M Philippens, Jacqueline A Wubben, Raymond A P Vanwersch, Dave L Estevao, Peter A Tass
Neurofeedback may enhance compensatory brain mechanisms. EEG-based sensorimotor rhythm neurofeedback training was suggested to be beneficial in Parkinson's disease. In a placebo-controlled study in parkinsonian nonhuman primates we here show that sensorimotor rhythm neurofeedback training reduces MPTP-induced parkinsonian symptoms and both ON and OFF scores during classical L-DOPA treatment. Our findings encourage further development of sensorimotor rhythm neurofeedback training as adjunct therapy for Parkinson's disease which might help reduce L-DOPA-induced side effects...
August 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28809773/a-macaque-model-for-rectal-lymphogranuloma-venereum-and-non-lymphogranuloma-venereum-chlamydia-trachomatis-impact-on-rectal-simian-human-immunodeficiency-virus-acquisition
#9
Sundaram Ajay Vishwanathan, Rachael D Aubert, Monica R Morris, Chunxia Zhao, Christi Philips, George M Khalil, Frank Deyounks, Kristen Kelley, Jana M Ritter, C Y Chen, Ellen N Kersh, Janet M McNicholl
BACKGROUND: Sustained genital tract inflammation caused by sexually transmitted infections (STIs) is known to increase risk of vaginal human immunodeficiency virus (HIV) infections but, to our knowledge, there are no nonhuman primate studies that have evaluated its link to rectal HIV acquisition. METHODS: Rhesus macaques inoculated with Chlamydia trachomatis (CT) (serovars LGV-L2 and CT-E; n = 7) or saline (n = 7) received up to 20 rectal challenges twice a week of simian/HIV immunodeficiency virus (SHIVSF162p3)...
September 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28806626/cryopreservation-of-cynomolgus-macaque-macaca-fascicularis-sperm-with-glycerol-and-ethylene-glycol-and-its-effect-on-sperm-specific-ion-channels-catsper-and-hv1
#10
Bingbing Chen, Shanshan Li, Yaping Yan, Yanchao Duan, Shaohui Chang, Hong Wang, Weizhi Ji, Xin Wu, Wei Si
The cryoprotective agent (CPA) is one of the most important factors that affects the cryosurvival of sperm. The aim of the present study was to compare two different CPAs, glycerol (Gly) and ethylene glycol (EG), on the cryopreservation of cynomolgus macaques sperm and evaluate the effects of cryopreservation on sperm motility, acrosomal integrity, DNA integrity, mitochondrial function and the sperm membrane ion channels CatSper and Hv1. Compared to fresh sperm, cryopreservation with either 0.7 M Gly or EG decreased the sperm motility (79...
August 8, 2017: Theriogenology
https://www.readbyqxmd.com/read/28803877/face-pareidolia-in-the-rhesus-monkey
#11
Jessica Taubert, Susan G Wardle, Molly Flessert, David A Leopold, Leslie G Ungerleider
Face perception in humans and nonhuman primates is rapid and accurate [1-4]. In the human brain, a network of visual-processing regions is specialized for faces [5-7]. Although face processing is a priority of the primate visual system, face detection is not infallible. Face pareidolia is the compelling illusion of perceiving facial features on inanimate objects, such as the illusory face on the surface of the moon. Although face pareidolia is commonly experienced by humans, its presence in other species is unknown...
August 4, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28803049/modeling-aging-in-hiv-infection-in-nonhuman-primates-to-address-an-emerging-challenge-of-the-post-art-era
#12
REVIEW
Tianyu He, Elizabeth Falwell, Egidio Brocca-Cofano, Ivona Pandrea
The advent of antiretroviral therapy (ART) has dramatically improved both quality and length of life for subjects infected with human immunodeficiency virus (HIV), delaying or preventing progression to acquired immunodeficiency syndrome (AIDS). However, the virus induces aging-related changes to the immune system which confound treatment. Additionally, the normal physiologic events that occur during aging lead to deficiencies in immunity which not only exacerbate HIV pathogenesis but also trigger a variety of comorbidities...
August 9, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28802725/body-mass-estimation-in-hominoids-age-and-locomotor-effects
#13
M Loring Burgess, Shannon C McFarlin, Antoine Mudakikwa, Michael R Cranfield, Christopher B Ruff
While there are a number of methods available for estimation of body mass in adult nonhuman primates, very few are available for juveniles, despite the potential utility of such estimations in both analyses of fossils and in museum collection based research. Furthermore, because of possible scaling differences, adult based body mass estimation equations may not be appropriate for non-adults. In this study, we present new body mass estimation equations for both adult and immature nonhuman hominoids based on joint and metaphyseal dimensions...
August 9, 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28791199/studying-primate-cognition-in-a-social-setting-to-improve-validity-and-welfare-a-literature-review-highlighting-successful-approaches
#14
Katherine A Cronin, Sarah L Jacobson, Kristin E Bonnie, Lydia M Hopper
BACKGROUND: Studying animal cognition in a social setting is associated with practical and statistical challenges. However, conducting cognitive research without disturbing species-typical social groups can increase ecological validity, minimize distress, and improve animal welfare. Here, we review the existing literature on cognitive research run with primates in a social setting in order to determine how widespread such testing is and highlight approaches that may guide future research planning...
2017: PeerJ
https://www.readbyqxmd.com/read/28789856/age-related-differences-in-stress-responsiveness-of-the-hypothalamic-pituitary-adrenal-axis-of-nonhuman-primates-with-various-types-of-adaptive-behavior
#15
Nadezhda D Goncharova, Tamara E Oganyan
Aging is characterized by disturbances in the functioning of the hypothalamic-pituitary-adrenal (HPA) axis, associated with disturbances in the adaptation processes and increase of the probability of the onset of post-stress syndrome. However, the individual features of age-related disorders stress reactivity of HPA axis have not been studied. The purpose was to study individual characteristics of the HPA axis responsiveness to acute psycho-emotional stress exposure (restraint, ASE) at different age periods on the model of the young adult and old physically healthy female rhesus monkeys that differ in their behavioral responses to stress, i...
August 5, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28783687/group-b-streptococcus-circumvents-neutrophils-and-neutrophil-extracellular-traps-during-amniotic-cavity-invasion-and-preterm-labor
#16
Erica Boldenow, Claire Gendrin, Lisa Ngo, Craig Bierle, Jay Vornhagen, Michelle Coleman, Sean Merillat, Blair Armistead, Christopher Whidbey, Varchita Alishetti, Veronica Santana-Ufret, Jason Ogle, Michael Gough, Sengkeo Srinouanprachanh, James W MacDonald, Theo K Bammler, Aasthaa Bansal, H Denny Liggitt, Lakshmi Rajagopal, Kristina M Adams Waldorf
Preterm birth is a leading cause of neonatal morbidity and mortality. Although microbial invasion of the amniotic cavity (MIAC) is associated with most early preterm births, the temporal events that occur during MIAC and preterm labor are not known. Group B streptococci (GBS) are β-hemolytic, Gram-positive bacteria, which commonly colonize the vagina but have been recovered from the amniotic fluid in preterm birth cases. To understand temporal events that occur during MIAC, we used a chronically catheterized nonhuman primate model that closely emulates human pregnancy...
October 14, 2016: Science Immunology
https://www.readbyqxmd.com/read/28782436/charcot-leyden-crystals-do-they-exist-in-veterinary-species-a-case-report-and-literature-review
#17
Eunju Choi, Andrew D Miller, Elizabeth Devenish, Makoto Asakawa, Marina McConkey, Jeanine Peters-Kennedy
The Charcot-Leyden crystal (CLC) is a major human eosinophil protein that readily crystallizes; these crystals are common in eosinophilic diseases. Although anecdotal existence of these crystals is known in veterinary pathology, definitive reports do not exist, to our knowledge. We identified eosinophilic crystals in a laryngeal myxosarcoma from a 2-y-old, spayed female, Labrador Retriever dog that were tentatively interpreted as CLCs. However, Ziehl-Neelsen acid-fast stain was negative, arguing against CLCs...
August 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28782434/high-leptospira-seroprevalence-in-captive-and-wild-caught-vervet-monkeys-chlorocebus-sabeus-on-the-caribbean-island-of-saint-kitts
#18
Sreekumari Rajeev, Anne Conan, Nicola Pratt, Amy Beierschmitt, Roberta Palmour
Leptospirosis is a zoonotic disease of global importance. Very little information is available on Leptospira infection in nonhuman primates. We report herein a high seroprevalence (49.4%; 95% confidence interval: 41.6-57.2%) to Leptospira serovars in vervet monkeys ( Chlorocebus sabeus) on the Caribbean island of Saint Kitts. Monkeys bred in captivity ( n = 81) had a significantly higher seroprevalence compared to wild-caught monkeys ( n = 81; p < 0.05). Seroprevalence to serovar Bataviae was significantly higher in monkeys bred in captivity and was higher to serovar Bratislava in wild-caught monkeys ( p < 0...
August 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28774750/advances-in-nonhuman-primate-models-of-autism-integrating-neuroscience-and-behavior
#19
REVIEW
M D Bauman, C S Schumann
Given the prevalence and societal impact of autism spectrum disorders (ASD), there is an urgent need to develop innovative preventative strategies and treatments to reduce the alarming number of cases and improve core symptoms for afflicted individuals. Translational efforts between clinical and preclinical research are needed to (i) identify and evaluate putative causes of ASD, (ii) determine the underlying neurobiological mechanisms, (iii) develop and test novel therapeutic approaches and (iv) ultimately translate basic research into safe and effective clinical practices...
July 31, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28774566/correlation-between-anthrax-lethal-toxin-neutralizing-antibody-levels-and-survival-in-guinea-pigs-and-nonhuman-primates-vaccinated-with-the-av7909-anthrax-vaccine-candidate
#20
Vladimir Savransky, Jeffry D Shearer, Melicia R Gainey, Daniel C Sanford, Gloria S Sivko, Gregory V Stark, Na Li, Boris Ionin, Michael J Lacy, Mario H Skiadopoulos
The anthrax vaccine candidate AV7909 is being developed as a next generation vaccine for a post-exposure prophylaxis (PEP) indication against anthrax. AV7909 consists of the Anthrax Vaccine Adsorbed (AVA, BioThrax®) bulk drug substance adjuvanted with the immunostimulatory oligodeoxynucleotide (ODN) compound, CPG 7909. The addition of CPG 7909 to AVA enhances both the magnitude and the kinetics of antibody responses in animals and human subjects, making AV7909 a suitable next-generation vaccine for use in a PEP setting...
July 31, 2017: Vaccine
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