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https://www.readbyqxmd.com/read/28333940/distinct-transcriptome-profiles-of-gag-specific-cd8-t-cells-temporally-correlated-with-the-protection-elicited-by-siv%C3%AE-nef-live-attenuated-vaccine
#1
Wuxun Lu, Yanmin Wan, Fangrui Ma, R Paul Johnson, Qingsheng Li
The live attenuated vaccine (LAV) SIVmac239Δnef (SIVΔnef) confers the best protection among all the vaccine modalities tested in rhesus macaque model of HIV-1 infection. This vaccine has a unique feature of time-dependent protection: macaques are not protected at 3-5 weeks post vaccination (WPV), whereas immune protection emerges between 15 and 20 WPV. Although the exact mechanisms of the time-dependent protection remain incompletely understood, studies suggested that both cellular and humoral immunities contribute to this time-dependent protection...
2017: PloS One
https://www.readbyqxmd.com/read/28333486/transitive-inference-in-humans-homo-sapiens-and-rhesus-macaques-macaca-mulatta-after-massed-training-of-the-last-two-list-items
#2
Greg Jensen, Yelda Alkan, Fabian Muñoz, Vincent P Ferrera, Herbert S Terrace
Transitive inference (TI) is a classic learning paradigm for which the relative contributions of experienced rewards and representation-based inference have been debated vigorously, particularly regarding the notion that animals are capable of logic and reasoning. Rhesus macaque subjects and human participants performed a TI task in which, prior to learning a 7-item list (ABCDEFG), a block of trials presented exclusively the pair FG. Contrary to the expectation of associative models, the high prior rate of reward for F did not disrupt subsequent learning of the entire list...
March 23, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28333483/monkeys-preferentially-process-body-information-while-viewing-affective-displays
#3
Eliza Bliss-Moreau, Gilda Moadab, Christopher J Machado
Despite evolutionary claims about the function of facial behaviors across phylogeny, rarely are those hypotheses tested in a comparative context-that is, by evaluating how nonhuman animals process such behaviors. Further, while increasing evidence indicates that humans make meaning of faces by integrating contextual information, including that from the body, the extent to which nonhuman animals process contextual information during affective displays is unknown. In the present study, we evaluated the extent to which rhesus macaques (Macaca mulatta) process dynamic affective displays of conspecifics that included both facial and body behaviors...
March 23, 2017: Emotion
https://www.readbyqxmd.com/read/28333316/convergent-balancing-selection-on-the-mu-opioid-receptor-in-primates
#4
Carolyn G Sweeney, Juliette M Rando, Helen N Panas, Gregory M Miller, Donna M Platt, Eric J Vallender
The mu opioid receptor is involved in many natural processes including stress response, pleasure, and pain. Mutations in the gene also have been associated with opiate and alcohol addictions as well as with responsivity to medication targeting these disorders. Two common and mutually exclusive polymorphisms have been identified in humans, A118G (N40D), found commonly in non-African populations, and C17T (V6A), found almost exclusively in African populations. While A118G has been studied extensively for associations and in functional assays, C17T is much less well understood...
March 15, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28333238/clustering-of-pcos-like-traits-in-naturally-hyperandrogenic-female-rhesus-monkeys
#5
D H Abbott, B H Rayome, D A Dumesic, K C Lewis, A K Edwards, K Wallen, M E Wilson, S E Appt, J E Levine
STUDY QUESTION: Do naturally occurring, hyperandrogenic (≥1 SD of population mean testosterone, T) female rhesus monkeys exhibit traits typical of women with polycystic ovary syndrome (PCOS)? SUMMARY ANSWER: Hyperandrogenic female monkeys exhibited significantly increased serum levels of androstenedione (A4), 17-hydroxyprogesterone (17-OHP), estradiol (E2), LH, antimullerian hormone (AMH), cortisol, 11-deoxycortisol and corticosterone, as well as increased uterine endometrial thickness and evidence of reduced fertility, all traits associated with PCOS...
March 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28330415/novel-detection-of-placental-insufficiency-by-magnetic-resonance-imaging-in-the-nonhuman-primate
#6
Jamie O Lo, Victoria H J Roberts, Matthias C Schabel, Xiaojie Wang, Terry K Morgan, Zheng Liu, Colin Studholme, Christopher D Kroenke, Antonio E Frias
The placenta is a vital organ necessary for healthy fetal development. Placental insufficiency creates an in utero environment where the fetus is at risk of insufficient oxygen or nutrient exchange. This is primarily caused by impairment of either maternal or fetal circulation or vascular thrombosis such as placental infarction. As a result of placental dysfunction, affected fetuses may be growth restricted, neurologically impaired, and at risk of increased morbidity and mortality. In a cohort of 4 pregnant Rhesus macaques, we describe antenatal detection of naturally occurring intrauterine growth restriction (IUGR) and aberrant fetal neurodevelopment in 1 animal...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28328310/developing-human-radiation-biodosimetry-models-testing-cross-species-conversion-approaches-using-an-ex-vivo-model-system
#7
Jin G Park, Sunirmal Paul, Natalia Briones, Jia Zeng, Kristin Gillis, Garrick Wallstrom, Joshua LaBaer, Sally A Amundson
In the event of a large-scale radiation exposure, accurate and quick assessment of radiation dose received would be critical for triage and medical treatment of large numbers of potentially exposed individuals. Current methods of biodosimetry, such as the dicentric chromosome assay, are time consuming and require sophisticated equipment and highly trained personnel. Therefore, scalable biodosimetry approaches, including gene expression profiles in peripheral blood cells, are being investigated. Due to the limited availability of appropriate human samples, biodosimetry development has relied heavily on mouse models, which are not directly applicable to human response...
March 22, 2017: Radiation Research
https://www.readbyqxmd.com/read/28326348/effects-of-odanacatib-on-bone-matrix-mineralization-in-rhesus-monkeys-are-similar-to-those-of-alendronate
#8
Barbara M Misof, Paul Roschger, Charles Chen, Maureen Pickarski, Phaedra Messmer, Klaus Klaushofer, Le T Duong
Odanacatib (ODN) is a selective and reversible inhibitor of cathepsin K which is an important enzyme for the degradation of collagen I. Aim of the present work was the head-to-head comparison between the effects of ODN and alendronate (ALN) on bone mineralization density distribution (BMDD), based on quantitative backscattered electron imaging in relation to changes in histomorphometric mineralizing surface per bone surface (MS/BS) in 12-22 years old ovariectomized rhesus monkeys. Trabecular and cortical BMDD derived parameters from vertebrae and proximal tibiae were compared among vehicle (VEH, n = 8), odanacatib low dose (ODN-L, n = 8), odanacatib high dose (ODN-H, n = 8), and alendronate (ALN, n = 6) treated animals...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28326020/pyramidal-neurons-are-not-generalizable-building-blocks-of-cortical-networks
#9
REVIEW
Jennifer I Luebke
A key challenge in cortical neuroscience is to gain a comprehensive understanding of how pyramidal neuron heterogeneity across different areas and species underlies the functional specialization of individual neurons, networks, and areas. Comparative studies have been important in this endeavor, providing data relevant to the question of which of the many inherent properties of individual pyramidal neurons are necessary and sufficient for species-specific network and areal function. In this mini review, the importance of pyramidal neuron structural properties for signaling are outlined, followed by a summary of our recent work comparing the structural features of mouse (C57/BL6 strain) and rhesus monkey layer 3 (L3) pyramidal neurons in primary visual and frontal association cortices and their implications for neuronal and areal function...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28324647/metabolism-and-distribution-of-clozapine-n-oxide-implications-for-nonhuman-primate-chemogenetics
#10
Jessica Raper, J Scott Daniels, Ryan D Morrison, Leonard Howell, Jocelyne Bachevalier, Thomas Wichmann, Adriana Galvan
The use of Designer Receptors Exclusively Activated by Designer Drugs (DREADDs) in neuroscience has rapidly expanded in rodent studies, but has lagged behind in nonhuman primate (NHP) experiments, slowing the development of this method for therapeutic use in humans. One reason for the slow adoption of DREADD technology in primates is that the pharmacokinetic properties and bioavailability of clozapine-n-oxide (CNO), the most commonly used ligand for human muscarinic (hM) DREADDs, are not fully described in primates...
March 21, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28324156/molecular-characterization-of-two-rhesus-glycoproteins-from-the-euryhaline-freshwater-white-rimmed-stingray-himantura-signifer-and-changes-in-their-transcript-levels-and-protein-abundance-in-the-gills-kidney-and-liver-during-brackish-water-acclimation
#11
Cheng T Yeam, You R Chng, Jasmine L Y Ong, Wai P Wong, Shit F Chew, Yuen K Ip
Himantura signifer is a freshwater stingray which inhabits rivers in Southeast Asia. It is ammonotelic in fresh water, but retains the capacities of urea synthesis and ureosmotic osmoregulation to survive in brackish water. This study aimed to elucidate the roles of Rhesus glycoproteins (Rhgp), which are known to transport ammonia, in conserving nitrogen (N) in H. signifer during brackish water acclimation when N became limited resulting from increased hepatic urea synthesis. The complete coding sequence of rhbg from H...
March 21, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28321697/robust-gene-expression-changes-in-the-ganglia-following-subclinical-reactivation-in-rhesus-macaques-infected-with-simian-varicella-virus
#12
Nicole Arnold, Christine Meyer, Flora Engelmann, Ilhem Messaoudi
Varicella zoster virus (VZV) causes varicella during acute infection and establishes latency in the sensory ganglia. Reactivation of VZV results in herpes zoster, a debilitating and painful disease. It is believed that VZV reactivates due to a decline in cell-mediated immunity; however, the roles that CD4 versus CD8 T cells play in the prevention of herpes zoster remain poorly understood. To address this question, we used a well-characterized model of VZV infection where rhesus macaques are intrabronchially infected with the homologous simian varicella virus (SVV)...
March 20, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28319449/non-clinical-study-examining-aav8-tbg-hldlr-vector-associated-toxicity-in-chow-fed-wild-type-and-ldlr-rhesus-macaques
#13
Jenny A Greig, Maria P Limberis, Peter Bell, Shu-Jen Chen, Roberto Calcedo, Daniel J Rader, James M Wilson
Vectors based on adeno-associated virus serotype 8 (AAV8) have been evaluated in several clinical trials of gene therapy for hemophilia B with encouraging results. In preparation for a Phase 1 clinical trial of AAV8 gene therapy for the treatment of homozygous familial hypercholesterolemia (HoFH), the safety of the clinical candidate vector, AAV8.TBG.hLDLR, was evaluated in wild-type rhesus macaques and macaques heterozygous for a nonsense mutation in the low-density lipoprotein receptor (LDLR) gene (LDLR(+/-))...
March 2017: Human Gene Therapy. Clinical Development
https://www.readbyqxmd.com/read/28317062/interhemispheric-gene-expression-differences-in-the-cerebral-cortex-of-humans-and-macaque-monkeys
#14
Gerard Muntané, Gabriel Santpere, Andrey Verendeev, William W Seeley, Bob Jacobs, William D Hopkins, Arcadi Navarro, Chet C Sherwood
Handedness and language are two well-studied examples of asymmetrical brain function in humans. Approximately 90% of humans exhibit a right-hand preference, and the vast majority shows left-hemisphere dominance for language function. Although genetic models of human handedness and language have been proposed, the actual gene expression differences between cerebral hemispheres in humans remain to be fully defined. In the present study, gene expression profiles were examined in both hemispheres of three cortical regions involved in handedness and language in humans and their homologues in rhesus macaques: ventrolateral prefrontal cortex, posterior superior temporal cortex (STC), and primary motor cortex...
March 19, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28315649/comparison-of-saliva-collection-methods-for-the-determination-of-salivary-cortisol-levels-in-rhesus-macaques-macaca-mulatta-cynomolgus-macaques-macaca-fascicularis-and-african-green-monkeys-chlorocebus-aethiops
#15
Kamala J Rapp-Santos, Louis A Altamura, Sarah L Norris, Luis A Lugo-Roman, Pedro J Rico, Christian C Hofer
The ability to quickly and accurately determine cortisol as a biomarker for stress is a valuable tool in assessing the wellbeing of NHP. In this study, 2 methods of collecting saliva (a commercial collection device and passive drool) and the resulting free salivary cortisol levels were compared with total serum cortisol concentration in rhesus macaques (Macaca mulatta), cynomolgus macaques (Macaca fascicularis) and African green monkeys (Chlorocebus aethiops) at 2 collection time points. Serum and salivary cortisol levels were determined using a competitive quantitative ELISA...
March 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28315640/effects-of-human-management-events-on-conspecific-aggression-in-captive-rhesus-macaques-macaca-mulatta
#16
Jacob H Theil, Brianne A Beisner, Ashley E Hill, Brenda McCowan
Conspecific aggression in outdoor-housed rhesus macaques (Macaca mulatta) at primate research facilities is a leading source of trauma and can potentially influence animal wellbeing and research quality. Although aggression between macaques is a normal part of daily social interactions, human presence might affect the frequency of various behaviors and instigate increases in conspecific aggression. We sought to determine how and which human management events affect conspecific aggression both immediately after an event and throughout the course of a day...
March 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28314593/25-hydroxycholesterol-protects-host-against-zika-virus-infection-and-its-associated-microcephaly-in-a-mouse-model
#17
Chunfeng Li, Yong-Qiang Deng, Shuo Wang, Feng Ma, Roghiyh Aliyari, Xing-Yao Huang, Na-Na Zhang, Momoko Watanabe, Hao-Long Dong, Ping Liu, Xiao-Feng Li, Qing Ye, Min Tian, Shuai Hong, Junwan Fan, Hui Zhao, Lili Li, Neda Vishlaghi, Jessie E Buth, Connie Au, Ying Liu, Ning Lu, Peishuang Du, F Xiao-Feng Qin, Bo Zhang, Danyang Gong, Xinghong Dai, Ren Sun, Bennett G Novitch, Zhiheng Xu, Cheng-Feng Qin, Genhong Cheng
Zika virus (ZIKV) has become a public health threat due to its global transmission and link to severe congenital disorders. The host immune responses to ZIKV infection have not been fully elucidated, and effective therapeutics are not currently available. Herein, we demonstrated that cholesterol-25-hydroxylase (CH25H) was induced in response to ZIKV infection and that its enzymatic product, 25-hydroxycholesterol (25HC), was a critical mediator of host protection against ZIKV. Synthetic 25HC addition inhibited ZIKV infection in vitro by blocking viral entry, and treatment with 25HC reduced viremia and conferred protection against ZIKV in mice and rhesus macaques...
March 21, 2017: Immunity
https://www.readbyqxmd.com/read/28304255/neurocysticercosis-in-a-rhesus-macaque-macaca-mulatta
#18
Jessica M Johnston, Cecilia D Dyer, Susan Madison-Antenucci, Kimberly Am Mergen, Christin L Veeder, Angela K Brice
An 8-y-old, intact, male rhesus macaque (Macaca mulatta) was sedated to undergo MRI in preparation for the implantation of cranial hardware. During imaging, 9 focal lesions were noted in the brain and musculature of the head. The lesions were hyperechoic with hypoechoic rims. The animal was deemed inappropriate for neuroscience research, and euthanasia was elected. Gross examination revealed multiple round, thick-walled, fluid-filled cysts (diameter, approximately 0.5 cm) in multiple tissues: one each in the left caudal lung lobe, left masseter muscle, and the dura overlying the brain and 8 throughout the gray and white matter of the brain parenchyma...
December 1, 2016: Comparative Medicine
https://www.readbyqxmd.com/read/28304253/ventricular-parasystole-in-a-neonatal-rhesus-macaque-macaca-mulatta
#19
Dalis E Collins, Brandy L Dozier, Jeffrey J Stanton, Lois Ma Colgin, Rhonda MacAllister
A 6-d-old Indian-origin female rhesus macaque (Macaca mulatta) presented with bradycardia shortly after sedation with ketamine. No other cardiac abnormalities were apparent. Approximately 2 wk after the initial presentation, the macaque was again bradycardic and exhibited a regularly irregular arrhythmia on a prestudy examination. ECG, echocardiography, blood pressure measurement, SpO2 assessment, and a CBC analysis were performed. The echocardiogram and bloodwork were normal, but the infant was hypotensive at the time of echocardiogram...
December 1, 2016: Comparative Medicine
https://www.readbyqxmd.com/read/28304251/using-hematology-data-from-malaria-vaccine-research-trials-in-humans-and-rhesus-macaques-macaca-mulatta-to-guide-volume-limits-for-blood-withdrawal
#20
Sara R Hegge, Bradley W Hickey, Shannon M Mcgrath, V Ann Stewart
Guidelines on safe volume limits for blood collection from research participants in both humans and laboratory animals vary widely between institutions. The main adverse event that may be encountered in large blood volume withdrawal is iron-deficiency anemia. Monitoring various parameters in a standard blood panel may help to prevent this outcome. To this end, we analyzed the Hgb and MCV values from 43 humans and 46 macaques in malaria vaccine research trials. Although the percentage of blood volume removed was greater for macaques than humans, macaques demonstrated an overall increase of MCV over time, indicating the ability to respond appropriately to frequent volume withdrawals...
December 1, 2016: Comparative Medicine
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