Publications by authors named "Cheng-Yan Yan"

Context: Congenital hypothyroidism (CH) is the most common endocrine disorder in neonates, but its etiology is still poorly understood.

Objective: We performed whole exome sequencing to identify a novel causative gene for CH and functional studies to validate its role in the occurrence of CH.

Methods: Whole exome sequencing in 98 CH patients not harboring known CH candidate genes and bioinformatic analysis were performed.

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Objective: The present study is to explore the association between NQO1 gene polymorphism and coronary heart disease (CHD) risk.

Methods: This research were selected 80 CHD patients as the observation group and 130 healthy people who participated in normal physical examination during the same period as the control group. NQO1 gene polymorphism was detected by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method.

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Background: Hammered silver appearance of the corneal endothelium is considered a characteristic change in iridocorneal-endothelial syndrome. Herein we report an interesting case of hammered silver appearance of the corneal endothelium in Fuchs uveitis syndrome (FUS).

Case Summary: A 49-year-old man with progressive vision loss in the right eye for one year was admitted to our hospital.

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Renal sympathetic denervation (RDN) is an effective approach for uncontrolled hypertension. Although several studies have compared the ablation characteristics at various locations, there is no direct comparative study on the effect of ablation in main and branch renal artery (RAs) and different electrode materials. The study aims to investigate the effect of different electrode materials (copper, gold, and platinum) and positions (proximal, middle, or distal site) on ablation.

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Resistant hypertension (RH) is a major healthcare issue, causing cardiovascular and cerebrovascular diseases. In recent years, radiofrequency (RF) ablation to renal sympathetic denervation (RSD) is a new effective method for the treatment of RH. However, the effect of RSD on renal artery blood flow still need further research.

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Renal sympathetic denervation (RSD) is a new method for the treatment of resistant hypertension (RH). However, few studies have focused on the effects of RSD on blood flow and the interaction between temperature field and flow field. In this paper, firstly, we designed a numerical simulation of electromagnetic field, flow field and temperature field coupling by finite element method.

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To improve the effect of multi-point stretch forming of sheet metal, it is proposed in this paper to replace a fixed ball head with a swinging ball head. According to the multi-point dies with different arrangements, this research establishes finite element models of the following stretch forming, i.e.

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Ischemic stroke is the third most common cause of death and the leading cause of disability worldwide in adults. The antiepileptic drug valproic acid (VPA) was reported to protect cerebral ischemia/reperfusion injury. However, the action mechanism of VPA in cerebral ischemia/reperfusion injury has not been fully understood.

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Antibiotic resistance of fecal coliforms in an urban river poses great threats to both human health and the environment. To investigate the occurrence and distribution of antibiotic resistant bacteria in an urban river, water samples were collected from the Chanhe River in Xi'an, China. After membrane filtration of water samples, the tetracycline resistance rate of fecal coliforms and their resistance genes were detected by plating and polymerase chain reaction (PCR), respectively.

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In order to explore the influence of Phyllostachys edulis invasion on the surrounding forest environment,the effects of aqueous extracts from P. edulis on two dominant species (Castanopsis sclerophylla and Cyclobalanopsis glaunca)in southern China were assessed by germination bioassays. The results showed that seed germination effects depended on the concentration of aqueous extracts and the extract sources.

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