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MBL Catalyst, Volume 7, Number 2, Fall 2012
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Supplemental Material
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Captions and Credits for Published Photos
Front cover: Nerve fibers in a human brain revealed using diffusion tensor imaging (DTI). The fiber pathways are derived from the characteristics of diffusion of water in brain tissue, revealing connections between brain regions. There is an average of 7,000 connections per neuron in the adult human brain (Allen Institute for Brain Science)
Inside cover: Nerve fibers in a human brain revealed using diffusion tensor imaging (DTI) (Allen Institute for Brain Science); Gary Borisy (Elizabeth Armstrong).
P. 1: Nerve fiber tracks in the human brain revealed using DTI (Allen Institute for Brain Science); Axon fibers connecting the primary motor cortex to part of the thalamus in a mouse brain. While the primary motor cortex is involved in motor function, the thalamus is involved in sensory relay and information integration, underscoring the importance of these connections (Allen Institute for Brain Science); MBL Methods in Computational Neuroscience course co-directors Adrienne Fairhall and Michael Berry (T. Kleindinst); Chlamydomonas reinhardtii (Laura Hilton, courtesy of Lynne Quarmby, Simon Fraser University).
Pp. 2–3, clockwise fom top:Human neuronal cells (green) and glial cells (red), with the nuclei of the cells in blue, derived from induced pluripotent stem cells (Rakesh Karmacharya, Stuart L. Schreiber, and Stephen J. Haggarty, Harvard University); MBL Grass Fellow Raquel Vasconcelos (Amanda Rose Martinez); Gross anatomy of the major outer brain structures: frontal lobe (yellow), temporal lobe (peach/pink), parietal lobe (red), cerebellum (blue)(Allen Institute for Brain Science); Leech motor neuron (T. Balmer); Neuron illustration by Lizzie Kripke.
Pp. 4-5: Golgi stained pyramidal cell (Bob Jacobs, Colorado College); Olivia Mullins of University of Virginia in the MBL Neural Systems & Behavior course (Diana Kenney).
Pp. 6-7, left to right: Choanoflagellates (Codosiga sp., two conjoined cysts) (Daniel Stoupin); Trachemys (U.S .Fish & Wildlife); Intestinal section from a gnotobiotic mouse model inoculated with selected bacterial species found in the human gut. Blue=Bacteroides WH2, green=Bacteroides thetaiotamicron, pink=Bacteroides vulgatus, yellow=Collinsella aerofaciens, red=Ruminococcus torques (Yuko Hasegawa); Squid giant axon (Jordi Ortega).
Pp. 8-9, clockwise from top: Nerves in red (filled with Lucifer yellow, tagged with Dylight 633, excited with 633 nm) can be easily traced among the distinctive chromatophores (pink) and iridophores (gray) (imaged as autofluorescence using 405 and 514 nm laser lines) that they innervate. Confocal maximum-intensity projection image from squid fin skin, cleared with TDE, whole-mounted and scanned (50 µm of tissue; 40 × 15 tile Z-scan). (Trevor Wardill, Paloma Gonzalez-Bellido, Robyn Crook and Roger Hanlon, Proc. Royal Soc. B: doi: 10.1098/rspb.2012.1374, 2012); Roger Hanlon (MBL); Stephen Highstein (Diana Kenney); A single hair cell from a frog ear magnified by a scanning electron microscope. Hair cells are essential sound and balance detectors in the inner ear. The study of these cells, which are a limited commodity and easily damaged in humans, is key to understanding hearing and balance loss (Jason Meyers, Colgate University).
Pp. 10-11: Chlamydomonas reinhardtii (Laura Hilton, courtesy of Lynne Quarmby, Simon Fraser University); George Augustine (Tom Kleindinst).
Pp. 12-13: Christof Koch (Allen Institute for Brain Science); Coronal section of an entire mouse brain, stained to delineate anatomical boundaries in many brain regions. This process reveals areas where the density of cell bodies is higher compared to the density of axonal projections—connections between neurons—as cell bodies are stained in red (NeuN) and axonal projections in green (NF160) (Allen Institute for Brain Science).
Pp. 14-15, left to right: Hydrothermal vents (NOAA and NSF); Swope Center (MBL); Neuron expressing the ArcLight Q239 probe visualized with confocal
microscopy (Courtesy of Larry B. Cohen).
Pp. 16-17: Gerald Fischbach (Simons Foundation) ; Plate 2 from Williams, LW. The Anatomy of the Common Squid, Loligo pealii, Lesueur (Leiden: Holland: EJ Brill, 1910).
Back cover: MBL courses through the years (MBL).
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