@article{1451,
abstract = {Extending work of Bielawski-Dancer 3 and Konno 14, we develop a theory of toric hyperkähler varieties, which involves toric geometry, matroid theory and convex polyhedra. The framework is a detailed study of semi-projective toric varieties, meaning GIT quotients of affine spaces by torus actions, and specifically, of Lawrence toric varieties, meaning GIT quotients of even-dimensional affine spaces by symplectic torus actions. A toric hyperkähler variety is a complete intersection in a Lawrence toric variety. Both varieties are non-compact, and they share the same cohomology ring, namely, the Stanley-Reisner ring of a matroid modulo a linear system of parameters. Familiar applications of toric geometry to combinatorics, including the Hard Lefschetz Theorem and the volume polynomials of Khovanskii-Pukhlikov 11, are extended to the hyperkähler setting. When the matroid is graphic, our construction gives the toric quiver varieties, in the sense of Nakajima 17.},
author = {Tamas Hausel and Sturmfels, Bernd},
journal = {Documenta Mathematica},
number = {1},
pages = {495 -- 534},
publisher = {Deutsche Mathematiker Vereinigung},
title = {{Toric hyperkähler varieties}},
volume = {7},
year = {2002},
}
@article{1737,
abstract = {A new solvent-free composite polymer electrolyte consisting of high-molecular mass polyethylene oxide (PEO) filled with titanium oxide and containing LiI and I2 was developed. The introduction of the inorganic filler (TiO2 Degussa P25) into the polymer matrix produces dramatic morphological changes to the host polymer structure. Upon addition of the inorganic oxide, the surface roughness increases, with respect to the original polymer and in parallel, the fractal dimension decreases. Both the thermograms and the atomic force microscope (AFM) pictures confirm the amorphicity of the composite electrolyte. The polymer sub-units are held together in a parallel orientation, forming straight long chains of about 500 nm in width, along which TiO2 spherical particles of about 20-25 nm in diameter are distributed. The polymer chains separated by the titania particles are arranged in a three-dimensional, mechanically stable network, that creates free space and voids into which the iodide/triodide anions can easily migrate. All solid-state dye-sensitized solar cells fabricated using this composite electrolyte present high efficiencies (typical maximum incident photon to current efficiency (IPCE) as high as 40% at 520 nm and overall conversion efficiency (η) of 0.96% (Voc = 0.67 V, Jsc = 2.050 mA/cm2, FF = 39%) under direct solar irradiation. Further improvement of the photovoltaic performance is expected by optimization of the electrolyte parameters and of the cell assembly.},
author = {Georgios Katsaros and Stergiopoulos, Thomas and Arabatzis, Iannis M and Papadokostaki, Kyriaki G and Falaras, Polycarpos},
journal = {Journal of Photochemistry and Photobiology A: Chemistry},
number = {1-3},
pages = {191 -- 198},
publisher = {Elsevier},
title = {{A solvent-free composite polymer/inorganic oxide electrolyte for high efficiency solid-state dye-sensitized solar cells}},
doi = {10.1016/S1010-6030(02)00027-8},
volume = {149},
year = {2002},
}
@inproceedings{1738,
abstract = {New dyes of the type Ru(II)(bdmpp)(bpy) [where bdmpp is 2,6-bis(3,5-dimethyl-N-pyrazoyl)pyridine and bpy is 2,2′-bipyridine-4,4′-dicarboxylic acid] are prepared and characterized by infra-red (IR), mass (MS) and electrospray mass spectroscopy (ES-MS) as well as 1H NMR (1D and 2D) spectroscopies. The compounds present broad and very high intensity MLCT absorption bands in the visible and can be chemically anchored on TiO2 films via ester-like linkage involving carboxylato groups. These complexes have been tested with success as potential molecular antennas in dye-sensitized solar cells. Both opaque and transparent nanocrystalline TiO2 thin film electrodes obtained by a doctor blade technique sensitized by these complexes were incorporated in a sandwich type regenerative photoelectrochemical solar cell containing 0.1M LiI +0.01M I2 in propylene carbonate as well as a platinized conductive glass counter electrode. The cell was characterized by Raman spectroscopy under anodic and cathodic bias. Two new vibration bands were observed in the lower frequency region. The first one at 112 cm-1 is due to tri-iodide formed on the photoactive electrode, and the second one at 167 cm-1 is a sign of the dye/iodide interaction and corresponds to a vibration in a chemically stable "DI" intermediate species. Under direct sunlight illumination (solar irradiance of 60 mW/cm2) by using a composite polymer solid state electrolyte, the cell ITO/TiO2/[Ru(II)(bdmpp)(bpy)(NCS)](PF6)/electrolyte/Pt-ITO produced a continuous photocurrent as high as 4.29mA/cm2, and gave IPCE values about half of the corresponding values obtained by the standard N3 dye under the same conditions. The photovoltage is about 600 mV and the overall energy conversion cell's efficiency is as high as 1.72%.},
author = {Falaras, Polycarpos and Chryssou, Katerina and Stergiopoulos, Thomas and Arabatzis, Ioannis M and Georgios Katsaros and Catalano, Vincent J and Kurtaran, Raif and Hugot-Le Goff, Anne and Bernard, Marie C},
pages = {125 -- 135},
publisher = {SPIE},
title = {{Dye-sensitization of titanium dioxide thin films by Ru(II)-bpp-bpy complexes}},
doi = {10.1117/12.452446},
volume = {4801},
year = {2002},
}
@article{1739,
abstract = {Poly(ethylene oxide)/titania polymer electrolyte based photoelectrochemical cells have been fabricated with Ru(dcbpy)2(NCS)2 complex as the sensitizer and nanoporous TiO2 films as photoanodes. The introduction of the titania filler into the poly(ethylene oxide) matrix reduces the crystallinity of the polymer and enhances the mobility of the 1-/13 - redox couple, resulting in outstanding overall conversion efficiency (4.2% under direct sunlight illumination) of the corresponding dye-sensitized nanocrystalline TiO2 solar cell, one of the best efficiencies reported to date for a solid-state device.},
author = {Stergiopoulos, Thomas and Arabatzis, Iannis M and Georgios Katsaros and Falaras, Polycarpos},
journal = {Nano Letters},
number = {11},
pages = {1259 -- 1261},
publisher = {American Chemical Society},
title = {{Binary Polyethylene Oxide/Titania Solid-State Redox Electrolyte for Highly Efficient Nanocrystalline TiO2 Photoelectrochemical Cells}},
doi = {10.1021/nl025798u},
volume = {2},
year = {2002},
}
@article{204,
abstract = {Let k⩾5 be an integer, and let x⩾1 be an arbitrary real number. We derive a bound[Formula presented] for the number of positive integers less than or equal to x which can be represented as a sum of two non-negative coprime kth powers, in essentially more than one way.},
author = {Timothy Browning},
journal = {Journal of Number Theory},
number = {2},
pages = {293 -- 318},
publisher = {Academic Press},
title = {{Equal Sums of Two kth Powers}},
doi = {10.1006/jnth.2002.2800},
volume = {96},
year = {2002},
}
@inbook{2338,
author = {Lieb, Élliott H and Solovej, Jan P and Robert Seiringer and Yngvason, Jakob},
booktitle = {Current Developments in Mathematics, 2001},
pages = {131 -- 178},
publisher = {International Press},
title = {{The ground state of the Bose gas}},
doi = {http://arxiv.org/abs/math-ph/0204027},
year = {2002},
}
@inproceedings{2339,
author = {Robert Seiringer},
editor = {Weder, Richardo and Exner, Pavel and Grébert, Benoit},
pages = {281 -- 286},
publisher = {World Scientific Publishing},
title = {{Symmetry breaking in a model of a rotating Bose gas}},
doi = {10.1090/conm/307},
volume = {307},
year = {2002},
}
@article{2349,
abstract = {The Bose-Einstein condensation (BEC) of the ground state of bosonic atoms in a trap was discussed. The BEC was proved for bosons with two-body repulsive interaction potentials in the dilute limit, starting from the basic Schrodinger equation. The BEC was 100% into the state which minimized the Gross-Pitaevskii energy functional. The analysis also included rigorous proof of BEC in a physically realistic, continuum model.},
author = {Lieb, Élliott H and Robert Seiringer},
journal = {Physical Review Letters},
number = {17},
pages = {1704091 -- 1704094},
publisher = {American Physical Society},
title = {{Proof of Bose-Einstein condensation for dilute trapped gases}},
doi = {10.1103/PhysRevLett.88.170409},
volume = {88},
year = {2002},
}
@article{2350,
abstract = {Using the Pauli-Fierz model of non-relativistic quantum electrodynamics, we calculate the binding energy of an electron in the field of a nucleus of charge Z and in presence of the quantized radiation field. We consider the case of small coupling constant α, but fixed Zα and ultraviolet cut-off Λ. We prove that after renormalizing the mass the binding energy has, to leading order in α, a finite limit as Λ goes to infinity; i.e., the cut-off can be removed. The expression for the ground state energy shift thus obtained agrees with Bethe's formula for small values of Zα, but shows a different behavior for bigger values.},
author = {Hainzl, Christian and Robert Seiringer},
journal = {Advances in Theoretical and Mathematical Physics},
number = {5},
pages = {847 -- 871},
publisher = {International Press},
title = {{Mass renormalization and energy level shift in non-relativistic QED}},
volume = {6},
year = {2002},
}
@article{2351,
abstract = {We study the Gross-Pitaevskii functional for a rotating two-dimensional Bose gas in a trap. We prove that there is a breaking of the rotational symmetry in the ground state; more precisely, for any value of the angular velocity and for large enough values of the interaction strength, the ground state of the functional is not an eigenfunction of the angular momentum. This has interesting consequences on the Bose gas with spin; in particular, the ground state energy depends non-trivially on the number of spin components, and the different components do not have the same wave function. For the special case of a harmonic trap potential, we give explicit upper and lower bounds on the critical coupling constant for symmetry breaking.},
author = {Robert Seiringer},
journal = {Communications in Mathematical Physics},
number = {3},
pages = {491 -- 509},
publisher = {Springer},
title = {{Gross-Pitaevskii theory of the rotating Bose gas}},
doi = {10.1007/s00220-002-0695-2},
volume = {229},
year = {2002},
}
@article{2352,
abstract = {We present a generalization of the Fefferman-de la Llave decomposition of the Coulomb potential to quite arbitrary radial functions V on ℝn going to zero at infinity. This generalized decomposition can be used to extend previous results on N-body quantum systems with Coulomb interaction to a more general class of interactions. As an example of such an application, we derive the high density asymptotics of the ground state energy of jellium with Yukawa interaction in the thermodynamic limit, using a correlation estimate by Graf and Solovej.},
author = {Hainzl, Christian and Robert Seiringer},
journal = {Letters in Mathematical Physics},
number = {1},
pages = {75 -- 84},
publisher = {Springer},
title = {{General decomposition of radial functions on ℝn and applications to N-body quantum systems}},
doi = {10.1023/A:1020204818938},
volume = {61},
year = {2002},
}
@article{2353,
abstract = {A commonly used theoretical definition of superfluidity in the ground state of a Bose gas is based on the response of the system to an imposed velocity field or, equivalently, to twisted boundary conditions in a box. We are able to carry out this program in the case of a dilute interacting Bose gas in a trap, and we prove that a gas with repulsive interactions is 100% superfluid in the dilute limit in which the Gross-Pitaevskii equation is exact. This is the first example in an experimentally realistic continuum model in which superfluidity is rigorously verified.},
author = {Lieb, Élliott H and Robert Seiringer and Yngvason, Jakob},
journal = {Physical Review B - Condensed Matter and Materials Physics},
number = {13},
publisher = {American Physical Society},
title = {{Superfluidity in dilute trapped Bose gases}},
doi = {10.1103/PhysRevB.66.134529},
volume = {66},
year = {2002},
}
@article{2420,
abstract = {A corner cut in dimension d is a finite subset of N0d that can be separated from its complement in N0d by an affine hyperplane disjoint from N0d. Corner cuts were first investigated by Onn and Sturmfels [Adv. Appl. Math. 23 (1999) 29-48], their original motivation stemmed from computational commutative algebra. Let us write (Nd0k)cut for the set of corner cuts of cardinality k; in the computational geometer's terminology, these are the k-sets of N0d. Among other things, Onn and Sturmfels give an upper bound of O(k2d(d-1)/(d+1)) for the size of (Nd0k)cut when the dimension is fixed. In two dimensions, it is known (see [Corteel et al., Adv. Appl. Math. 23 (1) (1999) 49-53]) that #(Nd0k)cut = Θ(k log k). We will see that in general, for any fixed dimension d, the order of magnitude of #(Nd0k)cut is between kd-1 log k and (k log k)d-1. (It has been communicated to me that the same bounds have been found independently by G. Rémond.) In fact, the elements of (Nd0k)cut correspond to the vertices of a certain polytope, and what our proof shows is that the above upper bound holds for the total number of flags of that polytope.},
author = {Uli Wagner},
journal = {Advances in Applied Mathematics},
number = {2},
pages = {152 -- 161},
publisher = {ACM},
title = {{On the number of corner cuts}},
doi = {10.1016/S0196-8858(02)00014-3},
volume = {29},
year = {2002},
}
@inproceedings{2421,
abstract = {Intersection graphs of disks and of line segments, respectively, have been well studied, because of both, practical applications and theoretically interesting properties of these graphs. Despite partial results, the complexity status of the Clique problem for these two graph classes is still open. Here, we consider the Clique problem for intersection graphs of ellipses which in a sense, interpolate between disc and ellipses, and show that it is APX-hard in that case. Moreover, this holds even if for all ellipses, the ratio of the larger over the smaller radius is some prescribed number. To our knowledge, this is the first hardness result for the Clique problem in intersection graphs of objects with finite description complexity. We also describe a simple approximation algorithm for the case of ellipses for which the ratio of radii is bounded.},
author = {Ambühl, Christoph and Uli Wagner},
pages = {489 -- 500},
publisher = {Springer},
title = {{On the Clique problem in intersection graphs of ellipses}},
doi = {10.1007/3-540-36136-7_43},
volume = {2518},
year = {2002},
}
@article{2613,
abstract = {In this investigation, we report identification and characterization of a 95 kDa postsynaptic density protein (PSD-95)/discs-large/ ZO-1 (PDZ) domain-containing protein termed tamalin, also recently named GRP1-associated scaffold protein (GRASP), that interacts with group 1 metabotropic glutamate receptors (mGluRs). The yeast two-hybrid system and in vitro pull-down assays indicated that the PDZ domain-containing, amino-terminal half of tamalin directly binds to the class I PDZ-binding motif of group 1 mGluRs. The C-terminal half of tamalin also bound to cytohesins, the members of guanine nucleotide exchange factors (GEFs) specific for the ADP-ribosylation factor (ARF) family of small GTP-binding proteins. Tamalin mRNA is expressed predominantly in the telencephalic region and highly overlaps with the expression of group 1 mGluR mRNAs. Both tamalin and cytohesin-2 were enriched and codistributed with mGluR1a in postsynaptic membrane fractions. Importantly, recombinant and native mGluR1a/tamalin/cytohesin-2 complexes were coimmunoprecipitated from transfected COS-7 cells and rat brain tissue, respectively. Transfection of tamalin and mutant tamalin lacking a cytohesin-binding domain caused an increase and decrease in cell-surface expression of mGluR1a in COS-7 cells, respectively. Furthermore, adenovirus-mediated expression of tamalin and dominant-negative tamalin facilitated and reduced the neuritic distribution of endogenous mGluR5 in cultured hippocampal neurons, respectively. The results indicate that tamalin plays a key role in the association of group 1 mGluRs with the ARF-specific GEF proteins and contributes to intracellular trafficking and the macromolecular organization of group 1 mGluRs at synapses.},
author = {Kitano, Jun and Kimura, Kouji and Yamazaki, Yoshimitsu and Soda, Takeshi and Ryuichi Shigemoto and Nakajima, Yoshiaki and Nakanishi, Shigetada},
journal = {Journal of Neuroscience},
number = {4},
pages = {1280 -- 1289},
publisher = {Society for Neuroscience},
title = {{Tamalin, a PDZ domain-containing protein, links a protein complex formation of group 1 metabotropic glutamate receptors and the guanine nucleotide exchange factor cytohesins}},
volume = {22},
year = {2002},
}
@article{2614,
abstract = {Metabotropic glutamate receptors (mGluRs) from group III reduce glutamate release. Because these receptors reduce cAMP levels, we explored whether this signaling pathway contributes to release inhibition caused by mGluRs with low affinity for L-2-amino-4-phosphonobutyrate (L-AP4). In biochemical experiments with the population of cerebrocortical nerve terminals we find that L-AP4 (1 mM) inhibited the Ca2+dependent-evoked release of glutamate by 25%. This inhibitory effect was largely prevented by the pertussis toxin but was insensitive to inhibitors of protein kinase C bisindolylmaleimide and protein kinase A H-89. Furthermore, this inhibition was associated with reduction in N-type Ca2+ channel activity in the absence of any detectable change in cAMP levels. In the presence of forskolin, however, L-AP4 decreased the levels of cAMP. The activation of this additional signaling pathway was very efficient in counteracting the facilitation of glutamate release induced either by forskolin or the β-adrenergic receptor agonist isoproterenol. Imaging experiments to measure Ca2+ dynamics in single nerve terminals showed that L-AP4 strongly reduced the Ca2+ response in 28% of the nerve terminals. Moreover, immunochemical experiments showed that 25-35% of the nerve terminals that were immunopositive to synaptophysin were also immunoreactive to the low affinity L-AP4-sensitive mGluR7. Then, mGluR7 mediates the inhibition of glutamate release caused by 1 mM L-AP4, primarily by a strong inhibition of Ca2+ channels, although high cAMP uncovers the receptor ability to decrease cAMP.},
author = {Millán, Carmelo and Luján, Rafael and Ryuichi Shigemoto and Sánchez-Prieto, José},
journal = {Journal of Biological Chemistry},
number = {16},
pages = {14092 -- 14101},
publisher = {American Society for Biochemistry and Molecular Biology},
title = {{The inhibition of glutamate release by metabotropic glutamate receptor 7 affects both [Ca2+]c and cAMP. Evidence for a strong reduction of Ca2+ entry in single nerve terminals}},
doi = {10.1074/jbc.M109044200},
volume = {277},
year = {2002},
}
@article{2615,
abstract = {Taste-mGluR4, cloned from taste tissues, is a truncated variant of brain-expressed mGluR4a (brain-mGluR4), and is known to be a candidate for the receptor involved in the umami taste sense. Although the expression patterns of taste- and brain-mGluR4 mRNAs have been demonstrated, no mention has so far been made of the expression of these two mGluR4 proteins in taste tissues. The present study examined the expression of taste-mGluR4 and brain-mGluR4 proteins in rat taste tissues by using a specific antibody for mGluR4a which shared a C-terminus of both taste- and brain-mGluR4, for immunoblot analysis and immunohistochemistry. Immunoblot analysis showed that both brain-mGluR4 and taste-mGluR4 were expressed in the taste tissues. Taste-mGluR4 was not detected in the cerebellum. The immunoreactive band for brain-mGluR4 protein was much stronger than that for taste-mGluR4 protein. In the cryosections of fungiform, foliate and circumvallate papillae, the antibody against taste-mGluR4 exhibited intense labeling of the taste pores and taste hairs in all the taste buds of gustatory papillae examined; the immunoreaction to the antibody against brain-mGluR4 was more intense at the same sites of the taste buds. The portions of the taste bud cells below the taste pore and surrounding keratinocytes did not show any immunoreactivities. The results of the present study strongly suggest that, in addition to taste-mGluR4, brain-mGluR4 may function even more importantly than the former as a receptor for glutamate, i.e. the umami taste sensation.},
author = {Toyono, Takashi and Seta, Yuji and Sataoka, Shinji and Harumi Harada and Morotomi, Takahiko and Kawano, Shintaro and Ryuichi Shigemoto and Toyoshima, Kuniaki},
journal = {Archives of Histology and Cytology},
number = {1},
pages = {91 -- 96},
publisher = {Japan Society of Histological Documentation},
title = {{Expression of the metabotropic glutamate receptor, mGluR4a, in the taste hairs of taste buds in rat gustatory papillae}},
doi = {10.1679/aohc.65.91},
volume = {65},
year = {2002},
}
@article{2616,
abstract = {Neurons in the rat cerebral cortex are enriched in group I metabotropic glutamate receptor (mGluR) subtypes and respond to their activation during development. To understand better the mechanisms by which mGluR1 and mGluR5 mediate these effects, the goal of this study was to elucidate the expression pattern and to determine the cellular and the precise subcellular localization of these two receptor subtypes in the rat neocortex and hippocampus during late prenatal and postnatal development. At the light microscopic level, mGluR1 α and mGluR5 were first detected in the cerebral cortex with different expression levels at embryonic day E18. Thus, mGluR5 had a moderate expression, whereas mGluR1 α was detected as a diffuse and weak labeling. mGluR5 was localized in some Cajal-Retzius cells as well as in other cell types, such as pioneer neurons of the marginal zone. During postnatal development, the distribution of the receptors dramatically changed. From P0 to around P10, mGluR1α was localized in identified, transient Cajal-Retzius cells of neocortex and hippocampus, until these cells disappear. In addition, a population of interneurons localized the receptor from the second/third postnatal week. In contrast, mGluR5 was localized mainly in pyramidal cells and in some interneurons, with a neuropilar staining throughout the cerebral cortex. At the electron microscopic level, the immunoreactivity for both group I mGluR subtypes was expressed postsynaptically. Using immunogold methods, mGluR1α and mGluR5 immunoreactivities were found throughout postnatal development at the edge of postsynaptic specialization of asymmetrical synapses. These results show that the two group I mGluRs have a differential expression pattern in neocortex and hippocampus that may suggest roles for the receptors in the early processing of cortical information and in the control of cortical developmental events.},
author = {López-Bendito, Guillermina and Ryuichi Shigemoto and Fairén, Alfonso and Luján, Rafael},
journal = {Cerebral Cortex},
number = {6},
pages = {625 -- 638},
publisher = {Oxford University Press},
title = {{Differential distribution of group I metabotropic glutamate receptors during rat cortical development}},
doi = {10.1093/cercor/12.6.625},
volume = {12},
year = {2002},
}
@article{2617,
abstract = {Synapses exhibit different short-term plasticity patterns and this behaviour influences information processing in neuronal networks. We tested how the short-term plasticity of excitatory postsynaptic currents (EPSCs) depends on the postsynaptic cell type, identified by axonal arborizations and molecular markers in the hippocampal CA1 area. Three distinct types of short-term synaptic behaviour (facilitating, depressing and combined facilitating-depressing) were defined by fitting a dynamic neurotransmission model to the data. Approximately 75 % of the oriens-lacunosum-moleculare (O-LM) interneurones received facilitating EPSCs, but in three of 12 O-LM cells EPSCs also showed significant depression. Over 90 % of the O-LM cells were immunopositive for somatostatin and mGluR1α and all tested cells were decorated by strongly mGluR7a positive axon terminals. Responses in eight of 12 basket cells were described well with a model involving only depression, but the other cells displayed combined facilitating-depressing EPSCs. No apparent difference was found between the plasticity of EPSCs in cholecystokinin- or parvalbumin-containing basket cells. In oriens-bistratified cells (O-Bi), two of nine cells showed facilitating EPSCs, another two depressing, and the remaining five cells combined facilitating-depressing EPSCs. Seven of 10 cells tested for somatostatin were immunopositive, but mGluR1α was detectable only in two of 11 tested cells. Furthermore, most O-Bi cells projected to the CA3 area and the subiculum, as well as outside the hippocampal formation. Postsynaptic responses to action potentials recorded in vivo from a CA1 place cell were modelled, and revealed great differences between and within cell types. Our results demonstrate that the short-term plasticity of EPSCs is cell type dependent, but with significant heterogeneity within all three interneurone populations.},
author = {Losonczy, Attila and Zhang, Limei and Ryuichi Shigemoto and Somogyi, Péter and Nusser, Zoltán},
journal = {Journal of Physiology},
number = {1},
pages = {193 -- 210},
publisher = {Wiley-Blackwell},
title = {{Cell type dependence and variability in the short-term plasticity of EPSCs in identified mouse hippocampal interneurones}},
doi = {10.1113/jphysiol.2002.020024},
volume = {542},
year = {2002},
}
@article{2618,
abstract = {The unipolar brush cell (UBC) is a type of glutamatergic interneuron in the granular layer of the cerebellum. The UBC brush and a single mossy fiber (MF) terminal contact each other within a cerebellar glomerulus, forming a giant synapse. Many UBCs receive input from extrinsic MFs, whereas others are innervated by intrinsic mossy terminals formed by the axons of other UBCs. In all mammalian species so far examined, the vestibulocerebellum is enriched of UBCs that are strongly immunoreactive for the calcium binding protein calretinin (CR) in both the somatodendritic and axonal compartment. UBCs have postsynaptic ionotropic glutamate receptors and extrasynaptic metabotropic glutamate receptors that immunocytochemically highlight their somatodendritic compartment and brush, respectively. In this study on the mouse cerebellum, we present evidence that immunoreactivities to CR and mGluR1α define two distinct UBC subsets with partly overlapping distributions in lobule X (the nodulus). In sections double-labeled for CR and mGluR1α, the patterns of distributions of CR+/mGluR1α- UBCs and CR-/mGluR1α+ UBCs differed along the mediolateral and dorsoventral axes of the folium. Moreover, mGluR1α+ UBCs outnumbered CR+ UBCs. Both UBC subsets were mGluR2/3, GluR2/3, and NMDAR1 immunoreactive. The different distribution patterns of the two UBC subsets within lobule X suggest that expression of CR or mGluR1α by UBCs may be afferent-specific and related to the terminal fields of different vestibular MF afferents.},
author = {Nunzi, Maria G and Ryuichi Shigemoto and Mugnaini, Enrico},
journal = {Journal of Comparative Neurology},
number = {2},
pages = {189 -- 199},
publisher = {Wiley-Blackwell},
title = {{Differential expression of calretinin and metabotropic glutamate receptor mGluR1α defines subsets of unipolar brush cells in mouse cerebellum}},
doi = {10.1002/cne.10344},
volume = {451},
year = {2002},
}