Retinoic acid (RA) is a vitamin A-derived signaling molecule acting during development and in the adult. This chapter provides protocols to characterize the role of RA signaling during development of the invertebrate chordate amphioxus. As sister group to all other chordates and characterized by the most vertebrate-like RA signaling system of all invertebrates, amphioxus is an important model for studying the evolution of RA signaling. Focusing on the development of GABAergic neurons in the amphioxus central nervous system, we provide detailed protocols for maintaining and breeding adult animals, for performing pharmacological treatments of embryos and for analyzing the effects of these treatments by whole mount in situ hybridization and immunohistochemistry coupled to confocal microscopy.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/bs.mie.2020.03.007 | DOI Listing |
ASAIO J
December 2024
Division of Cardiac Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts.
The emerging ex vivo machine perfusion (MP) enables the extension of ex situ intervals, potentially expanding the heart transplant (OHT) donor pool. From October 18, 2018, to June 30, 2023, isolated OHT using donation after brain death (DBD) from extended distances (>500 miles) were identified in the United Network for Organ Sharing database, and categorized into cold storage (non-MP, N = 1,212) and MP group (N = 152). The MP utilization rate for DBD hearts from extended distances surged from 0% in 2018 to 27.
View Article and Find Full Text PDFEnviron Microbiome
December 2024
Te Aka Mātuatua - School of Science, Te Whare Wānanga O Waikato - University of Waikato, Private Bag 3105, Kirikiriroa - Hamilton, 3240, New Zealand.
Background: Tramway Ridge, a geothermal Antarctic Specially Protected Area (elevation 3340 m) located near the summit of Mount Erebus, is home to a unique community composed of cosmopolitan surface-associated micro-organisms and abundant, poorly understood subsurface-associated microorganisms. Here, we use shotgun metagenomics to compare the functional capabilities of this community to those found elsewhere on Earth and to infer in situ diversity and metabolic capabilities of abundant subsurface taxa.
Results: We found that the functional potential in this community is most similar to that found in terrestrial hydrothermal environments (hot springs, sediments) and that the two dominant organisms in the subsurface carry high rates of in situ diversity which was taken as evidence of potential endemicity.
STAR Protoc
December 2024
Wellcome-Wolfson Institute for Experimental Medicine, Queen's University, Belfast BT9 7BL, UK. Electronic address:
The developing vasculature of the post-natal mouse retina is a powerful model to discover mechanisms of vessel formation and to test modulators of neovascularization. We present a protocol for single-molecule fluorescent in situ hybridization (smFISH) in whole-mount mouse retinas enabling the detection of individual mRNAs in vascular endothelial cells. We describe procedures from initial retina preparation to smFISH and detection.
View Article and Find Full Text PDFInt J Surg Case Rep
November 2024
Eric Williams Medical Sciences Complex, Mount Hope, Trinidad and Tobago.
Introduction And Importance: Guidewire localization in breast conserving procedures is commonly performed. Although it is a relatively safe procedure, there are atypical complications that may occur. Here, we highlight a rare case of guidewire migration, affecting both the brain and spine.
View Article and Find Full Text PDFEnviron Monit Assess
November 2024
School of Environment, Ecology and Biomedicine, La Trobe University, Bundoora Campus, Bundoora, VIC, 3083, Australia.
Safety data sheets (SDS) of chemicals are not only a key component of hazard/s communication in workplaces, but also furnish information on safe disposal of the waste chemicals. However, the question is do SDS furnish specific information regarding environmentally safe disposal of wastes? Therefore, this paper provides an appraisal on specific in-situ pre-treatment (where applicable) and environmentally acceptable disposal practices described in the SDS of selected toxic and genotoxic chemicals used in biomedical laboratories. A total of 21 SDS were reviewed, but only 19% of the SDS recommended high-temperature incineration of the waste chemicals after dissolution in a combustible solvent.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!