985 resultados para Illinois. Division of Waterways


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Issued June 2002 F-123-R-8; NOTE: Two different reports numbered 02/06 were issued from the CAE.

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F-123-R; issued June 1, 1997; two different reports were issued from the Center for Aquatic Ecology with report number 1997 (9)

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Annual Report to Division of Fisheries, Illinois Department of Natural Resources. F-123-R-10

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The morphogen Sonic Hedgehog (SHH) plays a critical role in the development of different tissues. In the central nervous system, SHH is well known to contribute to the patterning of the spinal cord and separation of the brain hemispheres. In addition, it has recently been shown that SHH signaling also contributes to the patterning of the telencephalon and establishment of adult neurogenic niches. In this work, we investigated whether SHH signaling influences the behavior of neural progenitors isolated from the dorsal telencephalon, which generate excitatory neurons and macroglial cells in vitro. We observed that SHH increases proliferation of cortical progenitors and generation of astrocytes, whereas blocking SHH signaling with cyclopamine has opposite effects. In both cases, generation of neurons did not seem to be affected. However, cell survival was broadly affected by blockade of SHH signaling. SHH effects were related to three different cell phenomena: mode of cell division, cell cycle length and cell growth. Together, our data in vitro demonstrate that SHH signaling controls cell behaviors that are important for proliferation of cerebral cortex progenitors, as well as differentiation and survival of neurons and astroglial cells.

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Report year ends June 30.

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The South Carolina Foster Care Review Board at the Office of Executive Policy and Programs annually publishes a report with summary of programs, recommendations, demographic and statistical information, and directory of state board and staff.

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The South Carolina Foster Care Review Board at the Office of Executive Policy and Programs annually publishes a report with summary of programs, recommendations, demographic and statistical information, and directory of state board and staff.

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The South Carolina Foster Care Review Board at the Office of Executive Policy and Programs annually publishes a report with summary of programs, recommendations, demographic and statistical information, and directory of state board and staff.