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    Publication Date: 2013-04-12
    Description: Obtaining high-resolution information from a complex system, while maintaining the global perspective needed to understand system function, represents a key challenge in biology. Here we address this challenge with a method (termed CLARITY) for the transformation of intact tissue into a nanoporous hydrogel-hybridized form (crosslinked to a three-dimensional network of hydrophilic polymers) that is fully assembled but optically transparent and macromolecule-permeable. Using mouse brains, we show intact-tissue imaging of long-range projections, local circuit wiring, cellular relationships, subcellular structures, protein complexes, nucleic acids and neurotransmitters. CLARITY also enables intact-tissue in situ hybridization, immunohistochemistry with multiple rounds of staining and de-staining in non-sectioned tissue, and antibody labelling throughout the intact adult mouse brain. Finally, we show that CLARITY enables fine structural analysis of clinical samples, including non-sectioned human tissue from a neuropsychiatric-disease setting, establishing a path for the transmutation of human tissue into a stable, intact and accessible form suitable for probing structural and molecular underpinnings of physiological function and disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4092167/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4092167/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chung, Kwanghun -- Wallace, Jenelle -- Kim, Sung-Yon -- Kalyanasundaram, Sandhiya -- Andalman, Aaron S -- Davidson, Thomas J -- Mirzabekov, Julie J -- Zalocusky, Kelly A -- Mattis, Joanna -- Denisin, Aleksandra K -- Pak, Sally -- Bernstein, Hannah -- Ramakrishnan, Charu -- Grosenick, Logan -- Gradinaru, Viviana -- Deisseroth, Karl -- DP1 OD000616/OD/NIH HHS/ -- R01 DA020794/DA/NIDA NIH HHS/ -- R01 MH099647/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2013 May 16;497(7449):332-7. doi: 10.1038/nature12107. Epub 2013 Apr 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioengineering, Stanford University, Stanford, California 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23575631" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*anatomy & histology ; Cross-Linking Reagents/chemistry ; Formaldehyde/chemistry ; Humans ; Hydrogel/chemistry ; Imaging, Three-Dimensional/*methods ; In Situ Hybridization/methods ; Lipids/isolation & purification ; Mice ; Molecular Imaging/*methods ; Permeability ; Phenotype ; Scattering, Radiation
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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