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https://www.readbyqxmd.com/read/29148858/from-bench-to-almost-bedside-the-long-road-to-a-licensed-ebola-virus-vaccine
#1
Gary Wong, Emelissa J Mendoza, Francis A Plummer, George F Gao, Gary P Kobinger, Xiangguo Qiu
The Ebola virus (EBOV) disease epidemic during 2014-16 in West Africa has accelerated the clinical development of several vaccine candidates that have demonstrated efficacy in the gold standard nonhuman primate (NHP) model, namely cynomolgus macaques. Areas covered: This review discusses the pre-clinical research and if available, clinical evaluation of the currently available EBOV vaccine candidates, while emphasizing the translatability of pre-clinical data generated in the NHP model to clinical data in humans...
November 17, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/29147914/novice-chimpanzees-cooperate-successfully-in-the-presence-of-experts-but-may-have-limited-understanding-of-the-task
#2
Malini Suchak, Julia Watzek, Luke F Quarles, Frans B M de Waal
Despite many observations of cooperation in nature, laboratory studies often fail to find careful coordination between individuals who are solving a cooperative task. Further, individuals tested are often naïve to cooperative tasks and there has been little exploration of partnerships with mixed expertise. In the current study, we examined acquisition of a cooperative pulling task in a group with both expert (N = 4) and novice (N = 11) chimpanzees (Pan troglodytes). We used five measures of competence and understanding: (1) success at the task, (2) latency to succeed, (3) efficiency, (4) uncoordinated pulling, and (5) pulling when a partner was present versus absent...
November 17, 2017: Animal Cognition
https://www.readbyqxmd.com/read/29145029/captive-gorillas-manual-laterality-the-impact-of-gestures-manipulators-and-interaction-specificity
#3
Jacques Prieur, Stéphanie Barbu, Catherine Blois-Heulin, Simone Pika
Relationships between humans' manual laterality in non-communicative and communicative functions are still poorly understood. Recently, studies showed that chimpanzees' manual laterality is influenced by functional, interactional and individual factors and their mutual intertwinement. However, what about manual laterality in species living in stable social groups? We tackled this question by studying three groups of captive gorillas (N=35) and analysed their most frequent manual signals: three manipulators and 16 gesture types...
November 13, 2017: Brain and Language
https://www.readbyqxmd.com/read/29142585/trade-offs-in-the-production-of-animal-vocal-sequences-insights-from-the-structure-of-wild-chimpanzee-pant-hoots
#4
Pawel Fedurek, Klaus Zuberbühler, Stuart Semple
Background: Vocal sequences - utterances consisting of calls produced in close succession - are common phenomena in animal communication. While many studies have explored the adaptive benefits of producing such sequences, very little is known about how the costs and constraints involved in their production affect their form. Here, we investigated this issue in the chimpanzee (Pan troglodytes schweinfurthii) pant hoot, a long and structurally complex vocal sequence comprising four acoustically distinct phases - introduction, build-up, climax and let-down...
2017: Frontiers in Zoology
https://www.readbyqxmd.com/read/29142043/the-higher-the-farther-distance-specific-referential-gestures-in-chimpanzees-pan-troglodytes
#5
Chloe Gonseth, Fumito Kawakami, Etsuko Ichino, Masaki Tomonaga
Referential signals, such as manual pointing or deictic words, allow individuals to efficiently locate a specific entity in the environment, using distance-specific linguistic and/or gestural units. To explore the evolutionary prerequisites of such deictic ability, the present study investigates the ability of chimpanzees to adjust their communicative signals to the distance of a referent. A food-request paradigm in which the chimpanzees had to request a close or distant piece of food on a table in the presence/absence of an experimenter was employed...
November 2017: Biology Letters
https://www.readbyqxmd.com/read/29123202/potential-damaging-mutation-in-lrp5-from-genome-sequencing-of-the-first-reported-chimpanzee-with-the-chiari-malformation
#6
Manuel Solis-Moruno, Marc de Manuel, Jessica Hernandez-Rodriguez, Claudia Fontsere, Alba Gomara-Castaño, Cristina Valsera-Naranjo, Dietmar Crailsheim, Arcadi Navarro, Miquel Llorente, Laura Riera, Olga Feliu-Olleta, Tomas Marques-Bonet
The genus Pan is the closest related to humans (Homo sapiens) and it includes two species: Pan troglodytes (chimpanzees) and Pan paniscus (bonobos). Different characteristics, some of biomedical aspect, separate them from us. For instance, some common human medical conditions are rare in chimpanzees (menopause, Alzheimer disease) although it is unclear to which extent longevity plays an active role in these differences. However, both humans and chimpanzees present similar pathologies, thus, understanding traits in chimpanzees can help unravel the molecular basis of human conditions...
November 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29115972/plasmodium-reichenowi-eba-140-merozoite-ligand-binds-to-glycophorin-d-on-chimpanzee-red-blood-cells-shedding-new-light-on-origins-of-plasmodium-falciparum
#7
Agata Zerka, Radoslaw Kaczmarek, Marcin Czerwinski, Ewa Jaskiewicz
BACKGROUND: All symptoms of malaria are caused by the intraerythrocytic proliferation of Plasmodium merozoites. Merozoites invade erythrocytes using multiple binding ligands that recognise specific surface receptors. It has been suggested that adaptation of Plasmodium parasites to infect specific hosts is driven by changes in genes encoding Plasmodium erythrocyte-binding ligands (EBL) and reticulocyte-binding ligands (RBL). Homologs of both EBL and RBL, including the EBA-140 merozoite ligand, have been identified in P...
November 7, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29114210/human-novelty-response-to-emotional-animal-vocalizations-effects-of-phylogeny-and-familiarity
#8
Marina Scheumann, Anna S Hasting, Elke Zimmermann, Sonja A Kotz
Darwin (1872) postulated that emotional expressions contain universals that are retained across species. We recently showed that human rating responses were strongly affected by a listener's familiarity with vocalization types, whereas evidence for universal cross-taxa emotion recognition was limited. To disentangle the impact of evolutionarily retained mechanisms (phylogeny) and experience-driven cognitive processes (familiarity), we compared the temporal unfolding of event-related potentials (ERPs) in response to agonistic and affiliative vocalizations expressed by humans and three animal species...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/29112973/reading-wild-minds-a-computational-assay-of-theory-of-mind-sophistication-across-seven-primate-species
#9
Marie Devaine, Aurore San-Galli, Cinzia Trapanese, Giulia Bardino, Christelle Hano, Michel Saint Jalme, Sebastien Bouret, Shelly Masi, Jean Daunizeau
Theory of Mind (ToM), i.e. the ability to understand others' mental states, endows humans with highly adaptive social skills such as teaching or deceiving. Candidate evolutionary explanations have been proposed for the unique sophistication of human ToM among primates. For example, the Machiavellian intelligence hypothesis states that the increasing complexity of social networks may have induced a demand for sophisticated ToM. This type of scenario ignores neurocognitive constraints that may eventually be crucial limiting factors for ToM evolution...
November 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/29112236/amelogenesis-imperfecta-in-the-dentition-of-a-wild-chimpanzee
#10
Ian Towle, Joel D Irish, Isabelle De Groote
This report describes a case of amelogenesis imperfecta in the dentition of a female chimpanzee. Amelogenesis imperfecta is a group of rare genetic conditions that create severe enamel defects, which, although well researched in humans, has not yet been investigated in wild non-human primates.
November 7, 2017: Journal of Medical Primatology
https://www.readbyqxmd.com/read/29109465/evidence-for-human-streptococcus-pneumoniae-in-wild-and-captive-chimpanzees-a-potential-threat-to-wild-populations
#11
Sophie Köndgen, Sebastien Calvignac-Spencer, Kim Grützmacher, Verena Keil, Kerstin Mätz-Rensing, Kathrin Nowak, Sonja Metzger, John Kiyang, Antina Lübke Becker, Tobias Deschner, Roman M Wittig, Felix Lankester, Fabian H Leendertz
Habituation of wild great apes for tourism and research has had a significant positive effect on the conservation of these species. However, risks associated with such activities have been identified, specifically the transmission of human respiratory viruses to wild great apes, causing high morbidity and, occasionally, mortality. Here, we investigate the source of bacterial-viral co-infections in wild and captive chimpanzee communities in the course of several respiratory disease outbreaks. Molecular analyses showed that human respiratory syncytial viruses (HRSV) and human metapneumoviruses (HMPV) were involved in the etiology of the disease...
November 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29103940/morphometric-behavioral-and-genomic-evidence-for-a-new-orangutan-species
#12
Alexander Nater, Maja P Mattle-Greminger, Anton Nurcahyo, Matthew G Nowak, Marc de Manuel, Tariq Desai, Colin Groves, Marc Pybus, Tugce Bilgin Sonay, Christian Roos, Adriano R Lameira, Serge A Wich, James Askew, Marina Davila-Ross, Gabriella Fredriksson, Guillem de Valles, Ferran Casals, Javier Prado-Martinez, Benoit Goossens, Ernst J Verschoor, Kristin S Warren, Ian Singleton, David A Marques, Joko Pamungkas, Dyah Perwitasari-Farajallah, Puji Rianti, Augustine Tuuga, Ivo G Gut, Marta Gut, Pablo Orozco-terWengel, Carel P van Schaik, Jaume Bertranpetit, Maria Anisimova, Aylwyn Scally, Tomas Marques-Bonet, Erik Meijaard, Michael Krützen
Six extant species of non-human great apes are currently recognized: Sumatran and Bornean orangutans, eastern and western gorillas, and chimpanzees and bonobos [1]. However, large gaps remain in our knowledge of fine-scale variation in hominoid morphology, behavior, and genetics, and aspects of great ape taxonomy remain in flux. This is particularly true for orangutans (genus: Pongo), the only Asian great apes and phylogenetically our most distant relatives among extant hominids [1]. Designation of Bornean and Sumatran orangutans, P...
October 31, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/29101728/understanding-social-decision-making-from-another-species-perspective
#13
Sarah F Brosnan
One challenge of studying cognition and behavior in other species is designing studies that are intuitive and motivating to the subjects; studies that lack these features may result in false negatives and other outcomes that bias our understanding of animals' abilities and choices. Here, Schmelz, Grueneisen, Kabalak, Jost, and Tomasello (PNAS, 114(28), 7462-7467, 2017) investigated prosocial behavior, in which animals may make decisions that benefit a conspecific, and found that, contrary to much earlier work, when chimpanzees are given a reason to do so, they do make prosocial choices...
November 3, 2017: Learning & Behavior
https://www.readbyqxmd.com/read/29101448/discovery-of-gorilla-mhc-c-expressing-c1-ligand-for-kir
#14
Jörg B Hans, Linda Vigilant
In comparison to humans and chimpanzees, gorillas show low diversity at MHC class I genes (Gogo), as reflected by an overall reduced level of allelic variation as well as the absence of a functionally important sequence motif that interacts with killer cell immunoglobulin-like receptors (KIR). Here, we use recently generated large-scale genomic sequence data for a reassessment of allelic diversity at Gogo-C, the gorilla orthologue of HLA-C. Through the combination of long-range amplifications and long-read sequencing technology, we obtained, among the 35 gorillas reanalyzed, three novel full-length genomic sequences including a coding region sequence that has not been previously described...
November 3, 2017: Immunogenetics
https://www.readbyqxmd.com/read/29098692/ontogeny-of-hallucal-metatarsal-rigidity-and-shape-in-the-rhesus-monkey-macaca-mulatta-and-chimpanzee-pan-troglodytes
#15
Biren A Patel, Jason M Organ, Tea Jashashvili, Stephanie H Bui, Holly M Dunsworth
Life history variables including the timing of locomotor independence, along with changes in preferred locomotor behaviors and substrate use during development, influence how primates use their feet throughout ontogeny. Changes in foot function during development, in particular the nature of how the hallux is used in grasping, can lead to different structural changes in foot bones. To test this hypothesis, metatarsal midshaft rigidity [estimated from the polar second moment of area (J) scaled to bone length] and cross-sectional shape (calculated from the ratio of maximum and minimum second moments of area, Imax /Imin ) were examined in a cross-sectional ontogenetic sample of rhesus macaques (Macaca mulatta; n = 73) and common chimpanzees (Pan troglodytes; n = 79)...
November 3, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29095520/the-grand-challenge-of-great-ape-health-and-conservation-in-the-anthropocene
#16
Dominic A Travis, Elizabeth V Lonsorf, Thomas R Gillespie
"Ecosystem Health recognizes the inherent interdependence of the health of humans, animals and ecosystems and explores the perspectives, theories and methodologies emerging at the interface between ecological and health sciences." This broad focus requires new approaches and methods for solving problems of greater complexity at larger scales than ever before. Nowhere is this point more salient than the case of disease emergence and control at the human-non human primate interface in shrinking tropical forests under great anthropogenic pressure...
November 2, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/29093539/chimpanzees-spontaneously-take-turns-in-a-shared-serial-ordering-task
#17
Christopher Flynn Martin, Dora Biro, Tetsuro Matsuzawa
Social coordination can provide optimal solutions to many kinds of group dilemmas, and non-human subjects have been shown to perform single actions successively or simultaneously with partners to maximize food rewards in a variety of experimental settings. Less attention has been given to showing how animals are able to produce multiple (rather than single) intermixed and co-regulated actions, even though many species' signal transmissions and social interactions rely on extended bouts of coordinated turn-taking...
November 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29093469/direct-estimation-of-de-novo-mutation-rates-in-a-chimpanzee-parent-offspring-trio-by-ultra-deep-whole-genome-sequencing
#18
Shoji Tatsumoto, Yasuhiro Go, Kentaro Fukuta, Hideki Noguchi, Takashi Hayakawa, Masaki Tomonaga, Hirohisa Hirai, Tetsuro Matsuzawa, Kiyokazu Agata, Asao Fujiyama
Mutations generate genetic variation and are a major driving force of evolution. Therefore, examining mutation rates and modes are essential for understanding the genetic basis of the physiology and evolution of organisms. Here, we aim to identify germline de novo mutations through the whole-genome surveyance of Mendelian inheritance error sites (MIEs), those not inherited through the Mendelian inheritance manner from either of the parents, using ultra-deep whole genome sequences (>150-fold) from a chimpanzee parent-offspring trio...
November 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29093263/human-vaccination-against-rh5-induces-neutralizing-antimalarial-antibodies-that-inhibit-rh5-invasion-complex-interactions
#19
Ruth O Payne, Sarah E Silk, Sean C Elias, Kazutoyo Miura, Ababacar Diouf, Francis Galaway, Hans de Graaf, Nathan J Brendish, Ian D Poulton, Oliver J Griffiths, Nick J Edwards, Jing Jin, Geneviève M Labbé, Daniel Gw Alanine, Loredana Siani, Stefania Di Marco, Rachel Roberts, Nicky Green, Eleanor Berrie, Andrew S Ishizuka, Carolyn M Nielsen, Martino Bardelli, Frederica D Partey, Michael F Ofori, Lea Barfod, Juliana Wambua, Linda M Murungi, Faith H Osier, Sumi Biswas, James S McCarthy, Angela M Minassian, Rebecca Ashfield, Nicola K Viebig, Fay L Nugent, Alexander D Douglas, Johan Vekemans, Gavin J Wright, Saul N Faust, Adrian Vs Hill, Carole A Long, Alison M Lawrie, Simon J Draper
The development of a highly effective vaccine remains a key strategic goal to aid the control and eventual eradication of Plasmodium falciparum malaria. In recent years, the reticulocyte-binding protein homolog 5 (RH5) has emerged as the most promising blood-stage P. falciparum candidate antigen to date, capable of conferring protection against stringent challenge in Aotus monkeys. We report on the first clinical trial to our knowledge to assess the RH5 antigen - a dose-escalation phase Ia study in 24 healthy, malaria-naive adult volunteers...
November 2, 2017: JCI Insight
https://www.readbyqxmd.com/read/29092041/a-3-way-hybrid-approach-to-generate-a-new-high-quality-chimpanzee-reference-genome-pan_tro_3-0
#20
Lukas F K Kuderna, Chad Tomlinson, LaDeana W Hillier, Annabel Tran, Ian T Fiddes, Joel Armstrong, Hafid Laayouni, David Gordon, John Huddleston, Raquel Garcia Perez, Inna Povolotskaya, Aitor Serres Armero, Jèssica Gómez Garrido, Daniel Ho, Paolo Ribeca, Tyler Alioto, Richard E Green, Benedict Paten, Arcadi Navarro, Jaume Betranpetit, Javier Herrero, Evan E Eichler, Andrew J Sharp, Lars Feuk, Wesley C Warren, Tomas Marques-Bonet
The chimpanzee is arguably the most important species for the study of human origins. A key resource for these studies is a high-quality reference genome assembly; however, as with most mammalian genomes, the current iteration of the chimpanzee reference genome assembly is highly fragmented. In the current iteration of the chimpanzee reference genome assembly (Pan_tro_2.1.4), the sequence is scattered across more then 183 000 contigs, incorporating more than 159 000 gaps, with a genome-wide contig N50 of 51 Kbp...
November 1, 2017: GigaScience
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