Publications by authors named "R U Chen"

Abdominal aortic aneurysms are the most common types of aneurysms worldwide, whereas aneurysms in the blood vessels of the abdominal organs (splanchnic aneurysms) are rare. Few studies have reported cases of two giant aneurysms occurring simultaneously. Presented here is a case of a 67-year-old man who began to experience periumbilical pain with a diagnosis of a giant abdominal aortic aneurysm and a hepatic artery aneurysm.

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Due to the barriers imposed by the restriction-modification (RM) system, Nisin-producing industrial strains of often encounter low transformation efficiency, which seriously hinders the widespread application of genetic engineering in non-model . Herein, we present a novel pre-modification strategy (PMS) coupled with optimized plasmid delivery systems designed to systematically evade RM barriers and substantially improve Nisin biosynthesis in . Through the use of engineered strains with methylation profiles specifically optimized for C20, we have effectively evaded RM barriers, thereby facilitating the efficient introduction of large Nisin biosynthetic gene clusters into .

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The cytokinin (CK) type B response regulator () gene is involved in the CK signaling pathway and performs a key function for mediating reactions to amounts of abiotic stresses. Nevertheless, the gene family remains to be characterized in Poaceae (also known as Gramineae or grasses). Here, we performed a comprehensive analysis encompassing phylogenetic relationships, evolutionary pressures, and expression patterns of the gene family in six Poaceae species, including rice, , , , maize, and wheat.

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Stearic acid was used to modify the surface of a mixed flame-retardant powder consisting of aluminum hydroxide and ammonium polyphosphate by an uneven nucleation method, aiming to improve its dispersion in a vinyl resin matrix. This study investigated the effect of stearic acid dosage on the powder's surface modification, characterized by infrared spectroscopy, activation degree, and laser particle size distribution. The dispersion of the modified powder in the resin matrix was evaluated by measuring the system viscosity, scanning electron microscopy (SEM) images, and bending performance.

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Background: Renal fibrosis and vascular rarefaction are significant complications of ischemia/reperfusion (I/R) injury. Human umbilical cord mesenchymal cell-derived exosomes (hucMSC-exos) have shown potential in mitigating these conditions. This study investigates the role of miR-29a-3p in exosomes and its therapeutic effects on I/R-induced renal damage.

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