chitinase/atrofie

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Transcriptome signatures in Helicobacter pylori-infected mucosa identifies acidic mammalian chitinase loss as a corpus atrophy marker.

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BACKGROUND The majority of gastric cancer cases are believed to be caused by chronic infection with the bacterium Helicobacter pylori, and atrophic corpus gastritis is a predisposing condition to gastric cancer development. We aimed to increase understanding of the molecular details of atrophy by

MicroRNA-24 protects retina from degeneration in rats by down-regulating chitinase-3-like protein 1.

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MicroRNAs (miRNAs) have been shown to play critical roles in the pathogenesis and progression of degenerative retinal diseases like age-related macular degeneration (AMD). In this study, we first demonstrated that miR-24 plays an important role in maintaining retinal structure and visual function of

Chitinase-3-Like-1 Promotes M2 Macrophage Differentiation and Induces Choroidal Neovascularization in Neovascular Age-Related Macular Degeneration.

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Choroidal neovascularization (CNV) is the principal pathological factor contributing to blindness in neovascular age-related macular degeneration (nAMD). Infiltration of M2 macrophage is thought to contribute to CNV progress, although the way that regulates its differentiation remains

Plasmodium gallinaceum: use of antisera to degenerate synthetic peptides derived from the active site of protozoal chitinases to characterize an ookinete-specific chitinase.

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Cloning, expression, and characterization of an antifungal chitinase from Leucaena leucocephala de Wit.

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Chitinase cDNAs from Leucaena leucocephala seedlings were cloned by PCR amplification with degenerate primers based on conserved class I chitinase sequences and cDNA library screening. Two closely related chitinase cDNAs were sequenced and inferred to encode precursor proteins of 323 (KB1) and 326

Neuronal Pentraxin 2 predicts medial temporal atrophy and memory decline across the Alzheimer's disease spectrum.

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Chronic neuroinflammation is thought to potentiate medial temporal lobe (MTL) atrophy and memory decline in Alzheimer's disease (AD). It has become increasingly important to find novel immunological biomarkers of neuroinflammation or other processes that can track AD development and progression. Our

Isolation, cloning, and characterization of new chitinase stored in active form in chitin-lined venom reservoir.

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A 52-kDa protein was purified from the venom gland of an endoparasitic wasp Chelonus sp. near curvimaculatus. The acidic protein (pl 4.8-5.0) was purified, and the NH2-terminal amino acid sequence was determined by direct protein sequencing. A vector-anchored primer and a degenerate primer derived

Investigation of the microbial ecology of intertidal hot springs by using diversity analysis of 16S rRNA and chitinase genes.

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The microbial diversity of intertidal hot springs on the seashore of northwest Iceland was examined by combining directed in situ enrichments, artificial support colonization, and mat sampling. Analysis of 16S rRNA genes revealed the presence of clones related to both marine and terrestrial,

Urinary chitinase 3-like protein 1 for early diagnosis of acute kidney injury: a prospective cohort study in adult critically ill patients.

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BACKGROUND Acute kidney injury (AKI) occurs frequently and adversely affects patient and kidney outcomes, especially when its severity increases from stage 1 to stages 2 or 3. Early interventions may counteract such deterioration, but this requires early detection. Our aim was to evaluate whether

Cloning of the gene Lecanicillium psalliotae chitinase Lpchi1 and identification of its potential role in the biocontrol of root-knot nematode Meloidogyne incognita.

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The nematophagous fungus Lecanicillium psalliotae (syn. Verticillium psalliotae) is a well-known biocontrol agent. In this study, a chitinase gene Lpchi1 was isolated for the first time from L. psalliotae using degenerate primers and DNA-walking technique. The cloned gene Lpchi1 encoding 423 amino

Intracellular chitinase gene from Rhizopus oligosporus: molecular cloning and characterization.

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Multiple chitinases have been found in hyphae of filamentous fungi, which are presumed to have various functions during hyphal growth. Here it is reported, for the first time, the primary structure of one such intracellular chitinase, named chitinase III, from Rhizopus oligosporus, a zygomycete

Isolation and characterization of chitinases from Verticillium lecanii.

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Degenerate PCR primers corresponding to conserved domains of fungal chitinases were designed, and PCR was performed on genomic DNA of the entomogenous fungus Verticillium lecanii (Zimmermann) Viegas. Two distinct PCR fragments, chf1 and chf2, were isolated and used to identify two DNA contigs.

Molecular cloning of a putative gastric chitinase in the toad Bufo japonicus.

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On the basis of our preliminary observation that a crude extract of the stomach of the toad Bufo japonicus exhibited a chitinase activity with its optimum pH around 3.0, we undertook molecular cloning of a cDNA encoding this putative gastric chitinase. By use of 2 degenerate oligonucleotide primers

Chitinase gene sequences retrieved from diverse aquatic habitats reveal environment-specific distributions.

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Chitin is an abundant biopolymer whose degradation is mediated primarily by bacterial chitinases. We developed a degenerate PCR primer set to amplify a approximately 900-bp fragment of family 18, group I chitinase genes and used it to retrieve these gene fragments from environmental samples. Clone

Molecular cloning, characterization, and expression of a chitinase from the entomopathogenic fungus Paecilomyces javanicus.

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Paecilomyces javanicus is an entomopathogenic fungus of coleopteran and lepidopteran insects. Here we report on cloning, characterization, and expression patterns of a chitinase from P. javanicus. A strong chitinase activity was detected in P. javanicus cultures added to chitin. The full-length

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