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111.
Pairwise likelihood methods for inference in image models 总被引:3,自引:0,他引:3
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PCR-amplification cloning of the cDNA encoding the human high-affinity receptor for IgG (Fc gamma RI) revealed two splice variants which coincide with domain boundaries predicted by amino acid sequence comparison. Both splice variants maintain the open reading frame. 相似文献
114.
Donald R. Bergsma 《Molecular neurobiology》2003,28(2):107-109
115.
Several studies have indicated that olfactory responses are impeded by
amiloride. Therefore, it was of interest to see whether, and if so which,
olfactory epithelial cellular compartments have amiloride- sensitive
structures. Using ultrastructural methods that involved rapid freezing,
freeze-substitution and low temperature embedding of olfactory epithelia,
this study shows that, in the rat, this tissue is immunoreactive to
antibodies against amiloride sensitive Na(+)- channels. However, microvilli
of olfactory supporting cells, as opposed to receptor cilia, contained most
of the immunoreactive sites. Apices from which the microvilli sprout and
receptor cell dendritic knobs had much less if any of the
amiloride-antibody binding sites. Using a direct ligand-binding
cytochemical method, this study also confirms earlier ones that showed that
olfactory receptor cell cilia have Na+, K(+)-ATPase. It is proposed that
supporting cell microvilli and the receptor cilia themselves have
mechanisms, different but likely complementary, that participate in
regulating the salt concentration around the receptor cell cilia. In this
way, both structures help to provide the ambient mucous environment for
receptor cells to function properly. This regulation of the salt
concentration of an ambient fluid environment is a function that the
olfactory epithelium shares with cells of transporting epithelia, such as
those of kidney.
相似文献
116.
Transgenic Research - 相似文献
117.
Gerick S. Bergsma 《Symbiosis (Philadelphia, Pa.)》2009,49(3):143-150
Several groups of tube-dwelling coral symbionts induce the formation of long, finger-like branches (“fingers”) on Montipora corals in the lagoons of Moorea, French Polynesia. We surveyed the prevalence and taxonomic diversity of these symbionts
across the northern lagoons of Moorea, and documented the length and density of the finger structures on coral colonies. We
found that the symbionts, which include gammarid amphipods and chaetopterid polychaete worms that were not previously known
to associate with scleractinian corals, dramatically alter coral skeletal morphology, and may alter coral biology and reef
ecology. 相似文献
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