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https://www.readbyqxmd.com/read/28938750/allowable-warm-ischemic-time-and-morphological-and-biochemical-changes-in-uterine-ischemia-reperfusion-injury-in-cynomolgus-macaque-a-basic-study-for-uterus-transplantation
#1
Iori Kisu, Kiyoko Umeneo, Masataka Adachi, Katsura Emoto, Yuya Nogami, Kouji Banno, Iori Itagaki, Ikuo Kawamoto, Takahiro Nakagawa, Hayato Narita, Atsushi Yoshida, Hideaki Tsuchiya, Kazumasa Ogasawara, Daisuke Aoki
STUDY QUESTION: How long is the allowable warm ischemic time of the uterus and what morphological and biochemical changes are caused by uterine ischemia/reperfusion injury in cynomolgus macaques? SUMMARY ANSWER: Warm ischemia in the uterus of cynomolgus macaques is tolerated for up to 4 h and reperfusion after uterine ischemia caused no further morphological and biochemical changes. WHAT IS KNOWN ALREADY: Uterus transplantation is a potential option for women with uterine factor infertility...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938749/the-testicular-transcriptome-associated-with-spermatogonia-differentiation-initiated-by-gonadotrophin-stimulation-in-the-juvenile-rhesus-monkey-macaca-mulatta
#2
Suresh Ramaswamy, William H Walker, Paula Aliberti, Rahil Sethi, Gary R Marshall, Alyxzandria Smith, Seyedmehdi Nourashrafeddin, Alicia Belgorosky, Uma R Chandran, Mark P Hedger, Tony M Plant
STUDY QUESTION: What is the genetic landscape within the testis of the juvenile rhesus monkey (Macaca mulatta) that underlies the decision of undifferentiated spermatogonia to commit to a pathway of differentiation when puberty is induced prematurely by exogenous LH and FSH stimulation? SUMMARY ANSWER: Forty-eight hours of gonadotrophin stimulation of the juvenile monkey testis resulted in the appearance of differentiating B spermatogonia and the emergence of 1362 up-regulated and 225 down-regulated testicular mRNAs encoding a complex network of proteins ranging from enzymes regulating Leydig cell steroidogenesis to membrane receptors, and from juxtacrine and paracrine factors to transcriptional factors governing spermatogonial stem cell fate...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28936853/-classics-textual-research-and-using-situation-investigation-of-tibetan-medicine-zha-xun
#3
Yun Cao, Rui Gu, Ming-Ming Zhao, Yu-Ying Ma, Shi-Hong Zhong, Jian Rang, Peng Mi
In this article the classics textual research to the origin of "Zha-xun" was carried out, the ethnobotanical research methods, the origin of visits, key informant interviews, sample collection and textual research were applied in the research. The results showed that the hypothesis of Zha-xun"s origin mainly included "source of mine", "source of feces", "source of monkey menstrual blood" in China. There were "source of fossil", "source of the plant secretion" abroad. The authors had interviewed the villagers at origin, herbalists, Tibetan doctors, herb dealers, foreign scholars for a total of 18 people, and collecting 45 batches medicinal materials...
December 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28935234/fractal-rules-in-brain-networks-signatures-of-self-organization
#4
Soibam Shyamchand Singh, Dineshchandra Haobijam, Md Zubbair Malik, Romana Ishrat, R K Brojen Singh
We study brain network data of three species, namely, C. elegans, cat and macaque monkey within the framework of network theory and Potts Hamiltonian model, and explore rich fractal nature in it, which could be an important signature of self-organization, and a simple rule to be obeyed in complex patterns of brain networks. Further, this fractal behaviors in topological parameters of brain networks at various network levels could be an indicator of systems level organization in complicated brain functionality...
September 18, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28935006/novel-h-shunt-venovenous-bypass-for-liver-transplantation-in-cynomolgus-macaques
#5
Yojiro Kato, Adam D Griesemer, Anette Wu, Hugo P Sondermeijer, Joshua I Weiner, Raimon Duran-Struuck, Mercedes Martinez, Andrea R Slate, Alexander Romanov, Jay H Lefkowitch, Megan Sykes, Tomoaki Kato
Cynomolgus monkeys are often used in preclinical transplantation research. Performing liver transplantation in cynomolgus monkeys is challenging because they poorly tolerate portal vein clamping during the anhepatic phase. Finding an alternative to portal vein clamping is necessary before preclinical liver transplant models can be performed with reliable outcomes. We used 3 different techniques to perform 5 liver transplants in male cynomolgus macaques (weight, 7.4-10.8 kg; mismatched for MHC I and II; matched for ABO)...
October 1, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28934219/low-antibody-prevalence-against-bacillus-cereus-biovar-anthracis-in-ta%C3%A3-national-park-c%C3%A3-te-d-ivoire-indicates-high-rate-of-lethal-infections-in-wildlife
#6
Fee Zimmermann, Susanne M Köhler, Kathrin Nowak, Susann Dupke, Anne Barduhn, Ariane Düx, Alexander Lang, Hélène M De Nys, Jan F Gogarten, Roland Grunow, Emmanuel Couacy-Hymann, Roman M Wittig, Silke R Klee, Fabian H Leendertz
Bacillus cereus biovar anthracis (Bcbva) is a member of the B. cereus group which carries both B. anthracis virulence plasmids, causes anthrax-like disease in various wildlife species and was described in several sub-Saharan African rainforests. Long-term monitoring of carcasses in Taï National Park, Côte d'Ivoire, revealed continuous wildlife mortality due to Bcbva in a broad range of mammalian species. While non-lethal anthrax infections in wildlife have been described for B. anthracis, nothing is known about the odds of survival following an anthrax infection caused by Bcbva...
September 21, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28932235/zika-virus-congenital-syndrome-experimental-models-and-clinical-aspects
#7
REVIEW
Carolina Manganeli Polonio, Carla Longo de Freitas, Nagela Ghabdan Zanluqui, Jean Pierre Schatzmann Peron
Viral infections have long been the cause of severe diseases to humans, increasing morbidity and mortality rates worldwide, either in rich or poor countries. Yellow fever virus, H1N1 virus, HIV, dengue virus, hepatitis B and C are well known threats to human health, being responsible for many million deaths annually, associated to a huge economic and social cost. In this context, a recently introduced flavivirus in South America, called Zika virus (ZIKV), led the WHO to declare in February 1st 2016 a warning on Public Health Emergency of International Concern (PHEIC)...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28931922/efficacy-of-recombinant-measles-virus-expressing-highly-pathogenic-avian-influenza-virus-hpaiv-antigen-against-hpaiv-infection-in-monkeys
#8
Tomoko Fujiyuki, Ryo Horie, Misako Yoneda, Takeshi Kuraishi, Fumihiko Yasui, Hyun-Jeong Kwon, Keisuke Munekata, Fusako Ikeda, Miho Hoshi, Yuri Kiso, Mio Omi, Hiroki Sato, Hiroshi Kida, Shosaku Hattori, Michinori Kohara, Chieko Kai
Highly pathogenic avian influenza virus (HPAIV) is a serious threat not only to domestic fowls but also to humans. Vaccines inducing long-lasting immunity against HPAIV are required. In the present study, we generated recombinant measles virus (MV) expressing the hemagglutinin protein of HPAIV without the multibasic site necessary for its pathogenicity in chickens using the backbone of an MV vaccine strain (rMV-Ed-H5HA) or a wild-type MV-derived mutant (rMV-HL-Vko-H5HA). We examined protective efficacy of the candidate vaccines in the monkey infection model by the challenge with a HPAIV (H5N1)...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28931803/laminar-differences-in-decision-related-neural-activity-in-dorsal-premotor-cortex
#9
Chandramouli Chandrasekaran, Diogo Peixoto, William T Newsome, Krishna V Shenoy
Dorsal premotor cortex is implicated in somatomotor decisions. However, we do not understand the temporal patterns and laminar organization of decision-related firing rates in dorsal premotor cortex. We recorded neurons from dorsal premotor cortex of monkeys performing a visual discrimination task with reaches as the behavioral report. We show that these neurons can be organized along a bidirectional visuomotor continuum based on task-related firing rates. "Increased" neurons at one end of the continuum increased their firing rates ~150 ms after stimulus onset and these firing rates covaried systematically with choice, stimulus difficulty, and reaction time-characteristics of a candidate decision variable...
September 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/28931679/pathogenic-correlates-of-the-simian-immunodeficiency-virus-siv-associated-b-cell-dysfunction
#10
Egidio Brocca-Cofano, David Kuhrt, Basile Siewe, Cuiling Xu, George S Haret-Richter, Jodi Craigo, Celia Labranche, David C Montefiori, Alan Landay, Cristian Apetrei, Ivona Pandrea
We compared and contrasted pathogenic (pigtailed macaques-PTMs) and nonpathogenic (African green monkeys-AGMs) SIVsab infections to assess the significance of the B-cell dysfunction observed in SIV/HIV infection. We report that the loss of B cells is specifically associated with the pathogenic SIV infection, while in the nonpathogenic natural hosts B cells rapidly increase in both LNs and intestine. SIV-associated B-cell dysfunction associated to the pathogenic SIV infection is characterized by loss of naïve B cells; loss of resting memory B cells due to their redistribution to the gut; increases of the activated B cells and circulating tissue-like memory B cells and expansion of the B regulatory cells...
September 20, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28931655/protection-against-a-mixed-shiv-challenge-by-a-broadly-neutralizing-antibody-cocktail
#11
Boris Julg, Po-Ting Liu, Kshitij Wagh, William M Fischer, Peter Abbink, Noe B Mercado, James B Whitney, Joseph P Nkolola, Katherine McMahan, Lawrence J Tartaglia, Erica N Borducchi, Shreeya Khatiwada, Megha Kamath, Jake A LeSuer, Michael S Seaman, Stephen D Schmidt, John R Mascola, Dennis R Burton, Bette T Korber, Dan H Barouch
HIV-1 sequence diversity presents a major challenge for the clinical development of broadly neutralizing antibodies (bNAbs) for both therapy and prevention. Sequence variation in critical bNAb epitopes has been observed in most HIV-1-infected individuals and can lead to viral escape after bNAb monotherapy in humans. We show that viral sequence diversity can limit both the therapeutic and prophylactic efficacy of bNAbs in rhesus monkeys. We first demonstrate that monotherapy with the V3 glycan-dependent antibody 10-1074, but not PGT121, results in rapid selection of preexisting viral variants containing N332/S334 escape mutations and loss of therapeutic efficacy in simian-HIV (SHIV)-SF162P3-infected rhesus monkeys...
September 20, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28931615/evidence-for-the-representation-of-movement-kinematics-in-the-discharge-of-f5-mirror-neurons-during-the-observation-of-transitive-and-intransitive-actions
#12
Vassilis Papadourakis, Vassilis C Raos
Mirror neurons (MirNs) are sensorimotor neurons that fire both when an animal performs a goal-directed action and when the same animal observes another agent performing the same or a similar transitive action. It has been claimed that the observation of intransitive actions does not activate MirNs in a monkey's brain. Prompted by recent evidence indicating that the discharge of MirNs is modulated also by non object-directed actions, we investigated thoroughly the efficacy of intransitive actions to trigger MirNs' discharge...
September 20, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28931609/movement-related-activity-in-the-periarcuate-cortex-of-monkeys-during-coordinated-eye-and-hand-movements
#13
Kiyoshi Kurata
To determine the role of the periarcuate cortex during coordinated eye and hand movements in monkeys, the present study examined neuronal activity in this region during movement with the hand, eyes, or both as effectors toward a visuospatial target. Similar to the primary motor cortex (M1), the dorsal premotor cortex contained a higher proportion of neurons that were closely related to hand movements, whereas saccade-related neurons were frequently recorded from the frontal eye field (FEF). Interestingly, neurons that exhibited activity related to both eye and hand movements were recorded most frequently in the ventral premotor cortex (PMv), located between the FEF and M1...
September 20, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28929924/the-search-for-a-subtype-selective-pet-imaging-agent-for-the-gabaa-receptor-complex-evaluation-of-the-radiotracer-11-c-ado-in-nonhuman-primates
#14
Shu-Fei Lin, Frederic Bois, Daniel Holden, Nabeel Nabulsi, Richard Pracitto, Hong Gao, Michael Kapinos, Jo-Ku Teng, Anupama Shirali, Jim Ropchan, Richard E Carson, Charles S Elmore, Neil Vasdev, Yiyun Huang
The myriad physiological functions of γ-amino butyric acid (GABA) are mediated by the GABA-benzodiazepine receptor complex comprising of the GABAA, GABAB, and GABAC groups. The various GABAA subunits with region-specific distributions in the brain subserve different functional and physiological roles. For example, the sedative and anticonvulsive effects of classical benzodiazepines are attributed to the α1 subunit, and the α2 and α3 subunits mediate the anxiolytic effect. To optimize pharmacotherapies with improved efficacy and devoid of undesirable side effects for the treatment of anxiety disorders, subtype-selective imaging radiotracers are required to assess target engagement at GABA sites and determine the dose-receptor occupancy relationships...
January 2017: Molecular Imaging
https://www.readbyqxmd.com/read/28925354/dynamic-representation-of-partially-occluded-objects-in-primate-prefrontal-and-visual-cortex
#15
Amber M Fyall, Yasmine El-Shamayleh, Hannah Choi, Eric Shea-Brown, Anitha Pasupathy
Successful recognition of partially occluded objects is presumed to involve dynamic interactions between brain areas responsible for vision and cognition, but neurophysiological evidence for the involvement of feedback signals is lacking. Here, we demonstrate that neurons in the ventrolateral prefrontal cortex (vlPFC) of monkeys performing a shape discrimination task respond more strongly to occluded than unoccluded stimuli. In contrast, neurons in visual area V4 respond more strongly to unoccluded stimuli...
September 19, 2017: ELife
https://www.readbyqxmd.com/read/28921934/mirror-trends-of-plasticity-and-stability-indicators-in-primate-prefrontal-cortex
#16
Miguel Á García-Cabezas, Mary Kate P Joyce, Yohan J John, Basilis Zikopoulos, Helen Barbas
Research on plasticity markers in the cerebral cortex has largely focused on their timing of expression and role in shaping circuits during critical and normal periods. By contrast, little attention has been focused on the spatial dimension of plasticity-stability across cortical areas. The rationale for this analysis is based on the systematic variation in cortical structure that parallels functional specialization and raises the possibility of varying levels of plasticity. Here we investigated in adult rhesus monkeys the expression of markers related to synaptic plasticity or stability in prefrontal limbic and eulaminate areas that vary in laminar structure...
September 16, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28921678/ipsilateral-corticotectal-projections-from-the-primary-premotor-and-supplementary-motor-cortical-areas-in-adult-macaque-monkeys-a-quantitative-anterograde-tracing-study
#17
Michela Fregosi, Eric M Rouiller
The corticotectal projection from cortical motor areas is one of several descending pathways involved in the indirect control of spinal motoneurons. In non-human primates, previous studies reported that cortical projections to the superior colliculus originated from the premotor cortex and the primary motor cortex, whereas no projection originated from the supplementary motor area. The aim of the present study was to investigate and compare the properties of corticotectal projections originating from these three cortical motor areas in intact adult macaques (n=9)...
September 18, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28918605/food-or-threat-wild-capuchin-monkeys-sapajus-libidinosus-as-both-predators-and-prey-of-snakes
#18
Tiago Falótico, Michele P Verderane, Olívia Mendonça-Furtado, Noemi Spagnoletti, Eduardo B Ottoni, Elisabetta Visalberghi, Patrícia Izar
Snakes present a hazard to primates, both as active predators and by defensive envenomation. This risk might have been a selective pressure on the evolution of primate visual and cognitive systems, leading to several behavioral traits present in human and non-human primates, such as the ability to quickly learn to fear snakes. Primates seldom prey on snakes, and humans are one of the few primate species that do. We report here another case, the wild capuchin monkey (Sapajus libidinosus), which preys on snakes...
September 16, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28918011/nucleic-acid-polymers-with-accelerated-plasma-and-tissue-clearance-for-chronic-hepatitis-b-therapy
#19
Ingo Roehl, Stephan Seiffert, Celia Brikh, Jonathan Quinet, Catherine Jamard, Nadine Dorfler, Jennifer A Lockridge, Lucyna Cova, Andrew Vaillant
REP 2139 is a nucleic acid polymer (NAP) currently under clinical development for chronic hepatitis B (HBV) therapy. This preclinical study investigated different REP 2139 analogs that would display reduced accumulation in the serum and tissues, while retaining an antiviral effect against HBV infection. REP 2139 analogs were evaluated in human plasma, CD-1 mice, cynomolgus monkeys, and Pekin ducks. Discrete ribose transformation to 2'OH in selected riboadenosines resulted in a slow degradation in acidified human plasma that plateaued after 48 hr...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28917506/the-plasmalogen-precursor-analog-ppi-1011-reduces-the-development-of-l-dopa-induced-dyskinesias-in-de-novo-mptp-monkeys
#20
Mélanie Bourque, Laurent Grégoire, Thérèse Di Paolo
The gold standard therapy for Parkinson's disease (PD), L-3,4-dihydroxyphenylalanine (L-DOPA), induces dyskinesias in the majority of patients after years of treatment. Ethanolamine plasmalogens (PlsEtn) play critical roles in membrane structure mediated functions and as a storage depot of polyunsaturated fatty acids such as docosahexaenoic acid. We previously showed that a PlsEtn precursor PPI-1011 reduced already established L-DOPA-induced dyskinesias (LID) in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) lesioned monkeys as a PD model...
September 13, 2017: Behavioural Brain Research
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