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The Role of Dual Mutations G347E and E349D of the Pigeon Paramyxovirus Type 1 Hemagglutinin-Neuraminidase Protein In Vitro and In Vivo.
Vet Sci
November 2024
Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou 225012, China.
Pigeon Newcastle disease (ND) is the most common viral infectious disease in the pigeon industry, caused by pigeon paramyxovirus type 1 (PPMV-1), a variant of chicken-origin Newcastle disease virus (NDV). Previous studies have identified significant amino acid differences between PPMV-1 and chicken-origin NDV at positions 347 and 349 in the hemagglutinin-neuraminidase (HN) protein, with PPMV-1 predominantly exhibiting glycine (G) at position 347 and glutamic acid (E) at position 349, while most chicken-origin NDVs show E at position 347 and aspartic acid (D) at position 349. However, the impact of these amino acid substitutions remains unclear.
View Article and Find Full Text PDFTitanium Dioxide Nanoparticles Negatively Influence Gill Metabolism in .
Metabolites
December 2024
Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China.
Background: In recent years, titanium dioxide (TiO) nanoparticles (NPs) have been widely used in various industries due to their favorable chemical properties, and their contamination of the environment has attracted much attention, especially to aquatic animals.
Methods: Therefore, we assessed the impact of TiO NPs (5 mg/L) on the marine bivalve, pearl oyster (), especially gill metabolism. Pearl oysters were exposed to seawater containing 5 mg/L TiO NPs for 14 days, followed by 7 days of recovery in untreated seawater.
Prolyl hydroxylase domain inhibitors prevent kidney crystal formation by suppressing inflammation.
Urolithiasis
December 2024
Department of Nephro-urology, Nagoya City University Graduate School of Medical Sciences, 1, Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Japan.
The early stages of kidney crystal formation involve inflammation and hypoxia-induced cell injury; however, the role of the hypoxic response in kidney crystal formation remains unclear. This study investigated the effects of a prolyl hydroxylase domain inhibitor (roxadustat) on renal calcium oxalate (CaOx) crystal formation through in vitro and in vivo approaches. In the in vitro experiment, murine renal tubular cells (RTCs) were exposed to varying roxadustat concentrations and CaOx crystals.
View Article and Find Full Text PDFVaricella zoster infection-associated progressive encephalomyelitis with rigidity and myoclonus in a 6-month follow-up.
BMJ Case Rep
December 2024
Internal Medicine, Hirslanden Klinik Sankt Anna, Luzern, Switzerland
A patient with reactivated varicella zoster virus (VZV) manifesting in the left-sided dermatome L3 and S2-S4 developed tonic spasms which morphed into myoclonic jerks, paresis, rigidity and hypoesthesia of the left leg. Later, stimuli-sensitive myoclonus progressed to affect the upper body and was accompanied by fever surges with high-frequency myoclonus, hypertensive derailment, dysphagia and other features of the brainstem with autonomic dysfunction. Cerebrospinal fluid tested positive for VZV, MRI showed no signs of myelitis and EEG was negative for epilepsy.
View Article and Find Full Text PDFRenal Clearable Chiral Manganese Oxide Supraparticles for In Vivo Detection of Metalloproteinase-9 in Early Cancer Diagnosis.
Adv Mater
December 2024
State Key Laboratory of Food Science and Technology, International Joint Research Laboratory for Biointerface and Biodetection, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China.
In this study, polypeptide TGGGPLGVARGKGGC-induced chiral manganese dioxide supraparticles (MnO SPs) are prepared for sensitive quantification of matrix metalloproteinase-9 (MMP-9) in vitro and in vivo. The results show that L-type manganese dioxide supraparticles (L-MnO SPs) exhibited twice the affinity for the cancer cell membrane receptor CD47 (cluster of differentiation, integrin-associated protein) than D-type manganese dioxide supraparticles (D-MnO SPs) to accumulate at the tumor site after surface modification of the internalizing arginine-glycine-aspartic acid (iRGD) ligand, specifically reacting with the MMP-9, disassembling into ultrasmall nanoparticles (NPs), and efficiently underwent renal clearance. Furthermore, L-MnO facilitates the quantification of MMP-9 in mouse tumor xenografts, as demonstrated by circular dichroism (CD) and magnetic resonance imaging (MRI) within 2 h.
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