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https://www.selleckchem.com/products/congo-red.html Choriocapillaris insufficiency may play a role in centripetal retinitis pigmentosa (RP) progression involving the fovea. However, the relationship between choriocapillaris integrity and foveal damage in RP is unclear. We examined the relationship between choriocapillaris flow and the presence of foveal photoreceptor involvement in RP. We categorized the severity of central involvement in RP by the occurrence of foveal ellipsoid zone (EZ) disruption present (severe RP) or absent (mild RP). Using optical coherence tomography angiography (OCTA, AngioVue, Optovue) in cases and unaffected age-matched controls, we compared vessel density (VD) between the groups using the generalized linear mixed model, controlling for age, gender, and scan quality. Fifty-seven eyes (20 severe RP, 18 mild RP, and 19 controls) were included. Foveal and parafoveal mean outer retinal thickness (µm) were lower in severe RP (fovea 101.3 ± 14.5; parafovea 68.4 ± 11.7) than controls (fovea 161.2 ± 8.9; parafovea 142.1 ± 11.8; p ≤ 0.0luating subjects with RP in neuroprotective or regenerative clinical trials.A novel lipolytic gene, estq7, was identified from a fosmid metagenomic library. The recombinant enzyme EstQ7 consists of 370 amino acids with an anticipated molecular mass of 42 kDa. Multiple sequence alignments showed that EstQ7 contained a pentapeptide motif GHSMG, and a putative catalytic triad Ser174-Asp306-His344. Interestingly, EstQ7 was found to have very little similarity to the characterized lipolytic enzymes. Phylogenetic analysis revealed that EstQ7 may be a member of a novel family of lipolytic enzymes. Biochemical characterization of the recombinant enzyme revealed that it constitutes a slightly alkalophilic, moderate thermophilic and highly active carboxylesterase against short-chain fatty acid esters with optimum temperature 50 ℃ and pH 8.2. The Km and kcat values toward p-nitrophenyl acetate were determined to be 0.17 mM and

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