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( Conor J Mccann ),( Sung Jin Hwang ),( Grant W Hennig ),( Sean M Ward ),( Kenton M Sanders ) 대한소화기기능성질환·운동학회 2014 Journal of Neurogastroenterology and Motility (JNM Vol.20 No.3
Background/Aims Several motility disorders are associated with disruption of interstitial cells of Cajal (ICC), which provide important functions, such as pacemaker activity, mediation of neural inputs and responses to stretch in the gastrointestinal (GI) tract. Restoration of ICC networks may be therapeutic for GI motor disorders. Recent reports have suggested that Kit+ cells can be restored to the GI tract via bone marrow (BM) transplantation. We tested whether BM derived cells can lead to generation of functional activity in intestines naturally lacking ICC. Methods BM cells from Kit+/copGFP mice, in which ICC are labeled with a green fluorescent protein, were transplanted into W/WV intestines, lacking ICC. After 12 weeks the presence of ICC was analyzed by immunohistochemistry and functional analysis of electrical behavior and contractile properties. Results After 12 weeks copGFP+ BM derived cells were found within the myenteric region of intestines from W/WV mice, typically populated by ICC. Kit+ cells failed to develop interconnections typical of ICC in the myenteric plexus. The presence of Kit+ cells was verified with Western analysis. BM cells failed to populate the region of the deep muscular plexus where normal ICC density, associated with the deep muscular plexus, is found in W/WV mice. Engraftment of Kit+-BM cells resulted in the development of unitary potentials in transplanted muscles, but slow wave activity failed to develop. Motility analysis showed that intestinal movements in transplanted animals were abnormal and similar to untransplanted W/WV intestines. Conclusions BM derived Kit+ cells colonized the gut after BM transplantation, however these cells failed to develop the morphology and function of mature ICC. (J Neurogastroenterol Motil 2014;20:326-337)
Baryon content of massive galaxy clusters at 0.57 < <i>z</i> < 1.33
Chiu, I.,Mohr, J.,McDonald, M.,Bocquet, S.,Ashby, M. L. N.,Bayliss, M.,Benson, B. A.,Bleem, L. E.,Brodwin, M.,Desai, S.,Dietrich, J. P.,Forman, W. R.,Gangkofner, C.,Gonzalez, A. H.,Hennig, C.,Liu, J. Oxford University Press 2016 MONTHLY NOTICES- ROYAL ASTRONOMICAL SOCIETY Vol.455 No.1
Integral Neutronics Experiment with a Mock-up of the European HCLL-TBM for ITER
A. Klix,U. Fischer,D. Lebrun-Grandie,P. Batistoni,S. Villari,R. Bottger,K. Fleischer,J. Henniger,D. Gehre,M. Sommer 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
An ITER TBM mock-up made of lithium-lead and sheets of EUROFER was irradiated with short pulses of DT neutrons from the neutron generator at TU Dresden, and time-of-arrival spectra of the slow neutron flux were measured by means of a ^3He counter in two regions inside the mock-up. Fast neutron spectra were obtained by continuous irradiation of the mock-up with DT neutrons and application of a NE-213 spectrometer. The same mock-up was also irradiated at the Frascati Neutron Generator and tritium production rates were measured by means of Li_2CO_3 pellet detectors and LiF thermoluminescense detectors (TLD) inserted into the mock-up. In case of the first type of detectors, the accumulated tritium activity was measured while with the LiF TLD the tritium production rate was obtained from the dose deposited in the detector by the tritium-producing reactions. The Calculation/Experiment ratio for the TPR measurement was nearly 1.0 with an uncertainty of approximately 7.4%. Preliminary results from calculations with FENDL-2.1 and JEFF-3.1.1 suggest a good agreement between experiment and calculation.