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https://www.readbyqxmd.com/read/29134410/extractive-foraging-of-toxic-caterpillars-in-wild-northern-pig-tailed-macaques-macaca-leonina
#1
Florian Trébouet, Ulrich H Reichard, Nantasak Pinkaew, Suchinda Malaivijitnond
Extractive foraging in nonhuman primates may involve different levels of technical complexity in terms of the number of actions that must be performed and the manual dexterity involved. We describe the extractive foraging of caterpillars in wild northern pig-tailed macaques (Macaca leonina) at Khao Yai National Park, Thailand. The study group, observed from May to December 2016 (n = 146 days), comprised 60-70 habituated individuals, including 3-4 adult males, 20-23 adult females, and 36-47 immatures. Four adult males and five adult females, observed from September to November 2016 for a total of 24 days, were selected for focal animal sampling...
November 13, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/29134258/novel-full-length-major-histocompatibility-complex-class-i-allele-discovery-and-haplotype-definition-in-pig-tailed-macaques
#2
Matthew R Semler, Roger W Wiseman, Julie A Karl, Michael E Graham, Samantha M Gieger, David H O'Connor
Pig-tailed macaques (Macaca nemestrina, Mane) are important models for human immunodeficiency virus (HIV) studies. Their infectability with minimally modified HIV makes them a uniquely valuable animal model to mimic human infection with HIV and progression to acquired immunodeficiency syndrome (AIDS). However, variation in the pig-tailed macaque major histocompatibility complex (MHC) and the impact of individual transcripts on the pathogenesis of HIV and other infectious diseases is understudied compared to that of rhesus and cynomolgus macaques...
November 13, 2017: Immunogenetics
https://www.readbyqxmd.com/read/29055777/characterization-of-classical-major-histocompatibility-complex-mhc-class-ii-genes-in-northern-pig-tailed-macaques-macaca-leonina
#3
Xiao-Dong Lian, Xi-He Zhang, Zheng-Xi Dai, Yong-Tang Zheng
The northern pig-tailed macaque (Macaca leonina) has been identified as an independent species from the pig-tailed macaque group. The species is a promising animal model for HIV/AIDS pathogenesis and vaccine studies due to susceptibility to HIV-1. However, the major histocompatibility complex (MHC) genetics in northern pig-tailed macaques remains poorly understood. We have previously studied the MHC class I genes in northern pig-tailed macaques and identified 39 novel alleles. Here, we describe the MHC class II alleles in all six classical loci (DPA, DPB, DQA, DQB, DRA, and DRB) from northern pig-tailed macaques using a sequence-based typing method for the first time...
October 18, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29044109/apobec3h-structure-reveals-an-unusual-mechanism-of-interaction-with-duplex-rna
#4
Jennifer A Bohn, Keyur Thummar, Ashley York, Alice Raymond, W Clay Brown, Paul D Bieniasz, Theodora Hatziioannou, Janet L Smith
The APOBEC3 family of cytidine deaminases cause lethal hypermutation of retroviruses via deamination of newly reverse-transcribed viral DNA. Their ability to bind RNA is essential for virion infiltration and antiviral activity, yet the mechanisms of viral RNA recognition are unknown. By screening naturally occurring, polymorphic, non-human primate APOBEC3H variants for biological and crystallization properties, we obtained a 2.24-Å crystal structure of pig-tailed macaque APOBEC3H with bound RNA. Here, we report that APOBEC3H forms a dimer around a short RNA duplex and, despite the bound RNA, has potent cytidine deaminase activity...
October 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/29030661/identification-of-the-major-histocompatibility-complex-class-ii-dm-and-do-alleles-in-a-cohort-of-northern-pig-tailed-macaques-macaca-leonina
#5
Xiao-Dong Lian, Xi-He Zhang, Zheng-Xi Dai, Yong-Tang Zheng
The northern pig-tailed macaque (Macaca leonina) has been considered as an independent species from the pig-tailed macaque group. We have previously reported that this species macaque has the potential to be a useful animal model in HIV/AIDS pathogenesis and vaccine studies due to its susceptibility to HIV-1. To develop this animal into a potential HIV/AIDS model, we have studied the classical MHC genes of this animal. In this study, the non-classical MHC genes Malo-DM and Malo-DO alleles were first characterized by sequencing and cloning in 12 unrelated northern pig-tailed macaques...
October 13, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28922357/analysis-of-nuclear-and-organellar-genomes-of-plasmodium-knowlesi-in-humans-reveals-ancient-population-structure-and-recent-recombination-among-host-specific-subpopulations
#6
Ernest Diez Benavente, Paola Florez de Sessions, Robert W Moon, Anthony A Holder, Michael J Blackman, Cally Roper, Christopher J Drakeley, Arnab Pain, Colin J Sutherland, Martin L Hibberd, Susana Campino, Taane G Clark
The macaque parasite Plasmodium knowlesi is a significant concern in Malaysia where cases of human infection are increasing. Parasites infecting humans originate from genetically distinct subpopulations associated with the long-tailed (Macaca fascicularis (Mf)) or pig-tailed macaques (Macaca nemestrina (Mn)). We used a new high-quality reference genome to re-evaluate previously described subpopulations among human and macaque isolates from Malaysian-Borneo and Peninsular-Malaysia. Nuclear genomes were dimorphic, as expected, but new evidence of chromosomal-segment exchanges between subpopulations was found...
September 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28811349/brain-macrophages-in-simian-immunodeficiency-virus-infected-antiretroviral-suppressed-macaques-a-functional-latent-reservoir
#7
Claudia R Avalos, Celina M Abreu, Suzanne E Queen, Ming Li, Sarah Price, Erin N Shirk, Elizabeth L Engle, Ellen Forsyth, Brandon T Bullock, Feilim Mac Gabhann, Stephen W Wietgrefe, Ashley T Haase, M Christine Zink, Joseph L Mankowski, Janice E Clements, Lucio Gama
A human immunodeficiency virus (HIV) infection cure requires an understanding of the cellular and anatomical sites harboring virus that contribute to viral rebound upon treatment interruption. Despite antiretroviral therapy (ART), HIV-associated neurocognitive disorders (HAND) are reported in HIV-infected individuals on ART. Biomarkers for macrophage activation and neuronal damage in cerebrospinal fluid (CSF) of HIV-infected individuals demonstrate continued effects of HIV in brain and suggest that the central nervous system (CNS) may serve as a viral reservoir...
August 15, 2017: MBio
https://www.readbyqxmd.com/read/28707699/predict-disease-progression-from-t-cell-phenotypes-in-northern-pig-tailed-macaques-macaca-leonina-during-sivmac239-infection
#8
Ming-Xu Zhang, Hong-Yi Zheng, Jin Jiang, Jia-Hao Song, Min Chen, Yu Xiao, Xiao-Dong Lian, Tian-Zhang Song, Ren-Rong Tian, Wei Pang, Yong-Tang Zheng
Macaca leonina (northern pig-tailed macaques, NPMs) have variable disease progression during SIVmac239 infection. In the present study, we analysed, for the first time, the correlations between T-cell phenotypes and disease progression in NPMs during SIVmac239 infection. In comparison to normal progressors (NPs), slow progressors (SPs) had lower chronic T-cell activation and exhaustion levels. In addition, SPs showed higher peripheral CD4(+) T-cell count and CD4 : CD8 ratio, and lower plasma viral load than NPs...
December 2017: Immunology
https://www.readbyqxmd.com/read/28345507/plasmodium-knowlesi-invasion-following-spread-by-infected-mosquitoes-macaques-and-humans
#9
Laith Yakob, Alun L Lloyd, Rowland R Kao, Heather M Ferguson, Patrick M Brock, Chris Drakeley, Michael B Bonsall
Plasmodium knowlesi is increasingly recognized as a major cause of malaria in Southeast Asia. Anopheles leucosphyrous group mosquitoes transmit the parasite and natural hosts include long-tailed and pig-tailed macaques. Despite early laboratory experiments demonstrating successful passage of infection between humans, the true role that humans play in P. knowlesi epidemiology remains unclear. The threat posed by its introduction into immunologically naïve populations is unknown despite being a public health priority for this region...
March 27, 2017: Parasitology
https://www.readbyqxmd.com/read/28322705/three-divergent-subpopulations-of-the-malaria-parasite-plasmodium-knowlesi
#10
Paul C S Divis, Lee C Lin, Jeffrine J Rovie-Ryan, Khamisah A Kadir, Fread Anderios, Shamilah Hisam, Reuben S K Sharma, Balbir Singh, David J Conway
Multilocus microsatellite genotyping of Plasmodium knowlesi isolates previously indicated 2 divergent parasite subpopulations in humans on the island of Borneo, each associated with a different macaque reservoir host species. Geographic divergence was also apparent, and independent sequence data have indicated particularly deep divergence between parasites from mainland Southeast Asia and Borneo. To resolve the overall population structure, multilocus microsatellite genotyping was conducted on a new sample of 182 P...
April 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/27872239/experimental-infection-of-pig-tailed-macaques-macaca-nemestrina-with-mycoplasma-genitalium
#11
Gwendolyn E Wood, Dorothy L Patton, Peter K Cummings, Stefanie L Iverson-Cabral, Patricia A Totten
Mycoplasma genitalium is an underappreciated cause of human reproductive tract disease, characterized by persistent, often asymptomatic, infection. Building on our previous experiments using a single female pig-tailed macaque as a model for M. genitalium infection (G. E. Wood, S. L. Iverson-Cabral, D. L. Patton, P. K. Cummings, Y. T. Cosgrove Sweeney, and P. A. Totten, Infect Immun 81:2938-2951, 2013, https://doi.org/10.1128/IAI.01322-12), we cervically inoculated eight additional animals, two of which were simultaneously inoculated in salpingeal tissue autotransplanted into abdominal pockets...
February 2017: Infection and Immunity
https://www.readbyqxmd.com/read/27469256/molecular-cloning-and-anti-hiv-1-activities-of-apobec3s-from-northern-pig-tailed-macaques-macaca-leonina
#12
Xiao-Liang Zhang, Jia-Hao Song, Wei Pang, Yong-Tang Zheng
Northern pig-tailed macaques (NPMs, Macaca leonina) are susceptible to HIV-1 infection largely due to the loss of HIV-1-restricting factor TRIM5α. However, great impediments still exist in the persistent replication of HIV-1 in vivo, suggesting some viral restriction factors are reserved in this host. The APOBEC3 proteins have demonstrated a capacity to restrict HIV-1 replication, but their inhibitory effects in NPMs remain elusive. In this study, we cloned the NPM A3A-A3H genes, and determined by BLAST searching that their coding sequences (CDSs) showed 99% identity to the corresponding counterparts from rhesus and southern pig-tailed macaques...
July 18, 2016: Dong Wu Xue Yan Jiu, Zoological Research
https://www.readbyqxmd.com/read/27430261/vertical-stratification-of-adult-mosquitoes-diptera-culicidae-within-a-tropical-rainforest-in-sabah-malaysia
#13
Hayley L Brant, Robert M Ewers, Indra Vythilingam, Chris Drakeley, Suzan Benedick, John D Mumford
BACKGROUND: Malaria cases caused by Plasmodium knowlesi, a simian parasite naturally found in long-tailed and pig-tailed macaques, are increasing rapidly in Sabah, Malaysia. One hypothesis is that this increase is associated with changes in land use. A study was carried out to identify the anopheline vectors present in different forest types and to observe the human landing behaviour of mosquitoes. METHODS: Mosquito collections were carried out using human landing catches at ground and canopy levels in the Tawau Division of Sabah...
July 19, 2016: Malaria Journal
https://www.readbyqxmd.com/read/27415779/phylogeny-and-history-of-the-lost-siv-from-crab-eating-macaques-sivmfa
#14
Kevin R McCarthy, Welkin E Johnson, Andrea Kirmaier
In the 20th century, thirteen distinct human immunodeficiency viruses emerged following independent cross-species transmission events involving simian immunodeficiency viruses (SIV) from African primates. In the late 1900s, pathogenic SIV strains also emerged in the United Sates among captive Asian macaque species following their unintentional infection with SIV from African sooty mangabeys (SIVsmm). Since their discovery in the 1980s, SIVs from rhesus macaques (SIVmac) and pig-tailed macaques (SIVmne) have become invaluable models for studying HIV pathogenesis, vaccine design and the emergence of viruses...
2016: PloS One
https://www.readbyqxmd.com/read/27234173/watering-holes-the-use-of-arboreal-sources-of-drinking-water-by-old-world-monkeys-and-apes
#15
Narayan Sharma, Michael A Huffman, Shreejata Gupta, Himani Nautiyal, Renata Mendonça, Luca Morino, Anindya Sinha
Water is one of the most important components of an animal's diet, as it is essential for life. Primates, as do most animals, procure water directly from standing or free-flowing sources such as pools, ponds and rivers, or indirectly by the ingestion of certain plant parts. The latter is frequently described as the main source of water for predominantly arboreal species. However, in addition to these, many species are known to drink water accumulated in tree-holes. This has been commonly observed in several arboreal New World primate species, but rarely reported systematically from Old World primates...
August 2016: Behavioural Processes
https://www.readbyqxmd.com/read/27170755/complete-unique-genome-sequence-expression-profile-and-salivary-gland-tissue-tropism-of-the-herpesvirus-7-homolog-in-pigtailed-macaques
#16
Jeannette P Staheli, Michael R Dyen, Gail H Deutsch, Ryan S Basom, Matthew P Fitzgibbon, Patrick Lewis, Serge Barcy
UNLABELLED: Human herpesvirus 6A (HHV-6A), HHV-6B, and HHV-7 are classified as roseoloviruses and are highly prevalent in the human population. Roseolovirus reactivation in an immunocompromised host can cause severe pathologies. While the pathogenic potential of HHV-7 is unclear, it can reactivate HHV-6 from latency and thus contributes to severe pathological conditions associated with HHV-6. Because of the ubiquitous nature of roseoloviruses, their roles in such interactions and the resulting pathological consequences have been difficult to study...
August 1, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27070755/conservation-of-the-glycoprotein-b-homologs-of-the-kaposi-s-sarcoma-associated-herpesvirus-kshv-hhv8-and-old-world-primate-rhadinoviruses-of-chimpanzees-and-macaques
#17
A Gregory Bruce, Jeremy A Horst, Timothy M Rose
The envelope-associated glycoprotein B (gB) is highly conserved within the Herpesviridae and plays a critical role in viral entry. We analyzed the evolutionary conservation of sequence and structural motifs within the Kaposi׳s sarcoma-associated herpesvirus (KSHV) gB and homologs of Old World primate rhadinoviruses belonging to the distinct RV1 and RV2 rhadinovirus lineages. In addition to gB homologs of rhadinoviruses infecting the pig-tailed and rhesus macaques, we cloned and sequenced gB homologs of RV1 and RV2 rhadinoviruses infecting chimpanzees...
July 2016: Virology
https://www.readbyqxmd.com/read/26993123/viral-seroprevalence-in-northern-pig-tailed-macaques-macaca-leonina-derived-from-ho-chi-minh-city-vietnam
#18
Ming-Xu Zhang, Hong-Yi Zheng, Jin Jiang, Wei Pang, Gao-Hong Zhang, Yong-Tang Zheng
Non-human primates are natural virus reservoirs, whether wild or domestic. In this study, we determined the seroprevalence of common viruses by ELISA in a northern pig-tailed macaque (Macaca leonina) colony derived from Ho Chi Minh City, Vietnam. A total of 20 types of virus which are commonly selected as target microorganisms for specific-pathogen-free colonies, or which have zoonotic potential were included in this study. The results showed only 2 in 90 northern pig-tailed macaques were seronegative for all the detected viruses, and at least 16 out of the total 20 types of virus tested were prevalent in this colony, so these macaques were commonly infected by various viruses...
July 2016: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/26950030/accurate-measurement-of-female-genital-tract-fluid-dilution-in-cervicovaginal-lavage-samples
#19
Scott A Churchman, John A Moss, Marc M Baum
An ion chromatographic method with conductivity detection for the precise and accurate analysis of lithium ions in phosphate-buffered saline, used as a cervicovaginal lavage (CVL) fluid, was developed and validated. The lithium ion dilution factor during the CVL is used to calculate the volume of cervicovaginal fluid (CVF) collected. Initial CVL Li(+) concentrations of 1mM and 10mM were evaluated. The method is robust, practical, and afforded an accurate measurement (5% of the measurement, or better) at 24μL of vaginal fluid simulant collected per mL of CVL fluid, as low as 5μLmL(-1) using 10mM Li(+) with a measurement accuracy of 6...
April 1, 2016: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/26782049/cloning-sequencing-and-polymorphism-analysis-of-novel-classical-mhc-class-i-alleles-in-northern-pig-tailed-macaques-macaca-leonina
#20
Xiao-Dong Lian, Xi-He Zhang, Zheng-Xi Dai, Yong-Tang Zheng
The northern pig-tailed macaque (Macaca leonina) has been confirmed to be an independent species from the pig-tailed macaque group of Old World monkey. We have previously reported that the northern pig-tailed macaques were also susceptible to HIV-1. Here, to make this animal a potential HIV/AIDS model and to discover the mechanism of virus control, we attempted to assess the role of major histocompatibility complex (MHC) class I-restricted immune responses to HIV-1 infection, which was associated with viral replication and disease progression...
April 2016: Immunogenetics
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