Publications by authors named "Nai-yun Chen"

Background: Acute aortic dissection (AAD) is a high mortality disease that can lead to acute ischemic strokes (AIS). Some of the patients with AAD combined with AIS initially present with neurological symptoms, which can easily lead to missed or delayed AAD diagnosis. This is attributed to the lack of physician awareness or the urgency of patient thrombolysis.

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Rationale: Spontaneous rupture of the branches of left subclavian artery (LSA) without any obvious risk factors is rare.

Patient Concerns: A 51-year-old female patient without history of trauma and hypertension complained about left chest pain.

Diagnoses: A chest Computed tomography (CT) scan revealed a large pleural effusion (PE) in the left thorax cavity and hemothorax was confirmed by thoracentesis.

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Rational: Infective endocarditis caused by a foreign body of the upper digestive tract is rare. We report a rare case of Granulicatella adiacens and Candida albicans coinfection acute endocarditis combined with systematic embolization caused by a fish bone from the esophagus penetrating into the left atrium.

Patient Concern: A 42-year-old woman was admitted to our hospital because of fever, abdominal pain, headache, and right limb weakness.

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Article Synopsis
  • The study aimed to explore how changes in certain genes related to the G protein-inositol phosphate pathway contribute to the development of essential hypertension.
  • Researchers measured blood pressure and body weights in spontaneous hypertensive rats and normotensive rats of various ages, then analyzed RNA from heart, aorta, liver, and kidney tissues to assess gene expression levels.
  • Results showed significantly higher systolic blood pressures and elevated levels of G11 and Gq mRNA in hypertensive rats compared to normotensive rats, suggesting a potential link between these gene expressions and the severity of hypertension.
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Aim: To construct a recombinant adeno-associated virus (rAAV) vector containing gene encoding phospholamban antisense RNA (asPLB), and analyse its effect on expression of PLB, expression and activity of sarco-endoplasmic reticulum Ca2+-ATPase (SERCA), and the change of intracellular free Ca2+ concentration ([Ca2+]i) in rat cardiomyocytes.

Methods: The target gene encoding PLB antisense RNA was inserted inversely into the adeno-associated virus plasmid pAAV-MCS digested by corresponding restricted endonuclease enzyme. The recombinant plasmid and pAAV-RC and pHelper were co-transfected into 293 cell.

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Objective: To evaluate the expression of nitric oxide synthase III (NOS III) mRNA in the heart, aorta, kidney and liver of spontaneously hypertensive rats (SHR).

Methods: Two hundred and ninety-four total RNA samples were obtained from the tissues of ventricle, aortic smooth muscle, kidney and liver of SHR and normotensive rats (Wistar-Kyoto rats, WKY). RNA array was used to determine the mRNA levels of NOS III of the two groups.

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Objective: To investigate the structural changes of aorta, and evaluate the effects of atorvastatin on the remodeling of thoracic aorta in spontaneously hypertensive rats (SHR).

Methods: Twelve eight-week-old SHR were randomized into atorvastatin treated group (ATV group, n=6) and distilled water group (DW group, n=6); Wistar-Kyoto rats (WKY) were used as normal controls. Atorvastatin was administered to ATV group for 10 weeks by gavage in mixture with distilled water (1 ml); the latter two groups were given the same amount of distilled water by gavage for 10 weeks.

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