scholarly journals Pharmaceutical inhibition of mTOR in the common marmoset: effect of rapamycin on regulators of proteostasis in a non-human primate

2016 ◽  
Vol 6 (1) ◽  
pp. 31793 ◽  
Author(s):  
Matthew Lelegren ◽  
Yuhong Liu ◽  
Corinna Ross ◽  
Suzette Tardif ◽  
Adam B. Salmon
2013 ◽  
Vol 9 (4) ◽  
pp. 20130409 ◽  
Author(s):  
Sae Gonda ◽  
Shuichi Matsumura ◽  
Shoichiro Saito ◽  
Yasuhiro Go ◽  
Hiroo Imai

The extraoral presence of taste signal transduction proteins has recently been reported in rodents and humans. Here, we report for the first time the presence of these signal transduction proteins in the caecum of a non-human primate, the common marmoset. Quantitative RT-PCR data on the gene expression of taste signal transduction molecules (gustducin and TRPM5) in common marmosets suggested high expression in the caecum, which was not observed in other non-human primates. Immunohistochemical analysis confirmed the specific presence of gustducin and taste receptors in marmoset caecal cells. These results may relate to the specific feeding behaviour of marmosets, which consume plant exudates, primarily gums.


2017 ◽  
Author(s):  
Alexander Woodward ◽  
Tsutomu Hashikawa ◽  
Masahide Maeda ◽  
Takaaki Kaneko ◽  
Keigo Hikishima ◽  
...  

AbstractWe present a new 3D digital brain atlas of the non-human primate, common marmoset monkey (Callithrix jacchus), with MRI and coregistered Nissl histology data. To the best of our knowledge this is the first comprehensive digital 3D brain atlas of the common marmoset having normalized multi-modal data, cortical and sub-cortical segmentation, and in a common file format (NIfTI). The atlas can be registered to new data, is useful for connectomics, functional studies, simulation and as a reference.The atlas was based on previously published work but we provide several critical improvements to make this release valuable for researchers. Nissl histology images were processed to remove illumination and shape artifacts and then normalized to the MRI data. Brain region segmentation is provided for both hemispheres. The data is in the NIfTI format making it easy to integrate into neuroscience pipelines, whereas the previous atlas was in an inaccessible file format. We also provide cortical, mid-cortical and white matter boundary segmentations useful for visualization and analysis.


2016 ◽  
Vol 130 (S3) ◽  
pp. S236-S236
Author(s):  
Noriomi Suzuki ◽  
Masato Fujioka ◽  
Makoto Hosoya ◽  
Naoki Oishi ◽  
Seiji Shiozawa ◽  
...  

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Takahiko Noro ◽  
Kazuhiko Namekata ◽  
Atsuko Kimura ◽  
Yuriko Azuchi ◽  
Nanako Hashimoto ◽  
...  

Abstract The common marmoset (Callithrix jacchus) is a non-human primate that provides valuable models for neuroscience and aging research due to its anatomical similarities to humans and relatively short lifespan. This study was carried out to examine whether aged marmosets develop glaucoma, as seen in humans. We found that 11% of the aged marmosets presented with glaucoma-like characteristics; this incident rate is very similar to that in humans. Magnetic resonance imaging showed a significant volume loss in the visual cortex, and histological analyses confirmed the degeneration of the lateral geniculate nuclei and visual cortex in the affected marmosets. These marmosets did not have elevated intraocular pressure, but showed an increased oxidative stress level, low cerebrospinal fluid (CSF) pressure, and low brain-derived neurotrophic factor (BDNF) and TrkB expression in the retina, optic nerve head and CSF. Our findings suggest that marmosets have potential to provide useful information for the research of eye and the visual system.


2004 ◽  
Vol 85 (9) ◽  
pp. 2525-2533 ◽  
Author(s):  
James R. Jacob ◽  
Kuei-Chin Lin ◽  
Bud C. Tennant ◽  
Keith G. Mansfield

GB virus B (GBV-B) is a flavivirus that is related closely to hepatitis C virus (HCV) and induces an acute hepatitis when inoculated into several species of New World primates. Common marmosets (Callithrix jacchus) are a widely available, non-endangered primate species that is susceptible to GBV-B infection and develops a characteristic acute hepatitis. Here, animals were found to be susceptible to serially passaged serum and GBV-B transcripts. Hepatic pathology and peripheral viraemia could be quantified biochemically, immunophenotypically and morphologically, and persisted for periods of up to 6 months in some animals. Hepatitis was characterized by a marked influx of CD3+ CD8+ T lymphocytes and CD20+ B cells within the first 2 months of primary infection. The results of this study document the marmoset as another small, non-human primate species in which the pathogenesis of GBV-B can be studied and used as a surrogate model of HCV infection for investigation of pathogenesis and antiviral drug development.


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