Publications by authors named "Xue-Yun Zhang"

Background: Acute-on-chronic liver failure (ACLF) is characterized by an excessive systemic inflammatory response and organ failure and has high mortality. Bacterial infections (BIs) worsen the clinical course of ACLF and carry a poor prognosis in ACLF patients. The efficacy of third-generation cephalosporins has been challenged in recent years.

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R-loops, three-stranded DNA-DNA:RNA hybrid structures, are best known for their deleterious effects on genome stability. The regulatory factors of this fundamental genetic structure remain unclear. Here, we reveal an epigenetic factor that controls R-loop stability.

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Diabetic nephropathy is developed in 20-40% of patients with diabetes mellitus, and patients with diabetic nephropathy require dialysis and renal transplantation. Traditional Chinese medicine has been widely used in treating patients with diabetic nephropathy in China. However, the detailed mechanisms of traditional Chinese medicine remain unclear.

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Objective: To investigate the dynamic changes of urinary nephrin, and the relationship between it and urinary albumin excretion rate (UAER) in a diabetic rat model, as well the effects of yiqiyangyinhuayutongluo recipe.

Methods: Diabetic model was induced by high fat diet combined with low-dose Streptozotocin (STZ) in rats. Normal group (NG), model group (MG), and yiqiyangyinhuayutongluo recipe treated group (YHTG) were set.

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Purpose: To report the use of hyperdried cross-linked (HDCL) amniotic membrane (AM) patching with tissue adhesive as an initial therapy for corneal perforations.

Methods: Cryopreserved AM was cross-linked with 0.1% glutaraldehyde and then dried using far-infrared rays and microwaves (hyperdry method).

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Background: The purpose of this study was to investigate the effect of clonidine, an alpha(2)-adrenergic receptor (alpha(2)-ADR) agonist, on vascular endothelial growth factor (VEGF) expression and secretion in the human retinal pigment epithelial cell line (ARPE-19) stimulated with interleukin-1beta (IL-1beta).

Methods: Alpha(2)-ADRs (alpha(2)A, alpha(2)B, and alpha(2)C) mRNA expression in ARPE-19 cells was examined by semiquantitative reverse transcription polymerase chain reaction (RT-PCR). Clonidine and inhibitors against protein kinases that are involved in the regulation of the intracellular signal transduction were added to serum-free medium before stimulation of IL-1beta.

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Purpose: Investigation of physiological anti-inflammatory mechanisms can contribute to the treatment of inflammatory disorders. The purpose of the present study was to investigate the effect of nicotine, a selective cholinergic agonist, on endotoxin-induced uveitis (EIU) in rats and the underlying molecular mechanism.

Methods: Lipopolysaccharide (LPS; endotoxin) and nicotine were injected intraperitoneally.

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Purpose: To examine the effects of berberine, an alkaloid isolated from some medicinal herbs, on the disruption of the barrier function in a human retinal pigment epithelial cell line (ARPE-19) stimulated with interleukin-1beta (IL-1beta).

Methods: ARPE-19 cells were cultured to confluence. Berberine and IL-1beta were added to the medium.

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Purpose: In this study we investigated the in vivo effect of N-acetylcysteine (NAC) on lipopolysaccharide (LPS)-induced uveitis in rats.

Methods: To induce uveitis, LPS (100 microg) was injected into subcutaneous tissue of Wistar rats (170-190 g). NAC was injected intraperitoneally.

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Purpose: The aims of this study were to examine the in vivo effects of berberine, an alkaloid isolated from some medicinal herbs, on monocyte chemotactic protein-1 (MCP-1) and cytokine-induced neutrophil chemoattractant-1 (CINC-1) expression in rat lipopolysaccharide (LPS)-induced uveitis.

Methods: LPS was injected intraperitoneally. Berberine was orally administered.

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S100A9 is a pro-inflammatory protein expressed in infiltrating granulocytes and monocytes. We determined role of S100A9 in endotoxin (LPS)-induced uveitis (EIU) and keratitis in Wistar rats. Anti-S100A9 antibody decreased partially clinical scores, protein, and cells in the aqueous humor at 18-36 h, compared with the LPS group.

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We examined the levels of vitreous chemokines and Sho (Zheng in Chinese) of Chinese-Korean-Japanese medicine in diabetic patients. Patients undergoing vitrectomy were classified into Group 1 (no diabetic retinopathy), Group 2 (diabetic retinopathy with no or a few new vessels), and Group 3 (diabetic retinopathy with many new vessels). The levels of IL-8, MCP-1, MIP-1alpha, MIP-1beta, and RANTES in the vitreous fluid were measured using cytometric bead array method.

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We examined the effects of berberrubine, a protoberberine alkaloid, on interleukin-8 (IL-8) and monocyte chemotactic protein-1 (MCP-1) expression in a human retinal pigment epithelial cell line (ARPE-19) stimulated with interleukin-1beta (IL-1beta) or tumor necrosis factor alpha (TNF-alpha). ARPE-19 cells were cultured to confluence. Berberrubine and IL-1beta or TNF-alpha were added to the medium.

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Purpose: The aims of this study were to examine the effects of berberine, an alkaloid isolated from some medicinal herbs, on interleukin 8 (IL-8) and monocyte chemotactic protein 1 (MCP-1) expression in a human retinal pigment epithelial cell line (ARPE-19) stimulated with interleukin 1beta (IL-1beta) or tumor necrosis factor alpha (TNF-alpha).

Methods: ARPE-19 cells were cultured to confluence. Berberine and IL-1beta or TNF-alpha were added to the medium.

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Purpose: To examine pituitary adenylate cyclase-activating polypeptide (PACAP) receptors (PAC1, VPAC1, and VPAC2) mRNA and the effect of PACAP on interleukin-6 (IL-6), interleukin-8 (IL-8), and monocyte chemotactic protein-1 (MCP-1) expression in human retinal pigment epithelial cell line (ARPE-19) stimulated with interleukin-1beta (IL-1beta).

Methods: Expression of PACAP receptor mRNA was examined by reverse transcription polymerase chain reaction (RT-PCR). PACAP and IL-1beta were added to serum-free medium.

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Purpose: To examine melanocortin receptor (from MC-1 to MC-5) mRNA and the effect of alpha-melanocyte-stimulating hormone (alpha-MSH) on interleukin 8 (IL-8) and monocyte chemotactic protein 1 (MCP-1) expression in a human retinal pigment epithelial cell line (ARPE-19) stimulated with IL-1beta or tumor necrosis factor alpha (TNF-alpha).

Methods: Expressions of MC-1 to MC-5 mRNA were examined by semiquantitative reverse transcription polymerase chain reaction (RT-PCR). alpha-MSH and IL-1beta or TNF-alpha were added to serum-free medium.

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Purpose: Two isoforms of cyclooxygenase (COX-1 and COX-2) exist. To determine in vivo effects of the intravenous administration of FR122047 (a selective COX-1 inhibitor), FR188582 (a selective COX-2 inhibitor), diclofenac sodium or dexamethasone phosphate disodium on prostaglandin-E2 (PGE2)-induced aqueous flare elevation and mRNA levels for COX-1 and COX-2 in pigmented rabbits.

Methods: To produce aqueous flare elevation in rabbits, PGE2, 25 microg/ml, was applied to the cornea with the use of a glass cylinder.

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Purpose: To investigate effects of rolipram, an inhibitor of type 4 phosphodiesterase, on lipopolysaccharide (LPS)-induced uveitis in Wistar rats.

Methods: A total of 100 microg LPS was injected into the rat footpad. Rolipram (Wako Pure Chemical, Osaka, Japan) was injected intraperitoneally 30 minutes before administration of LPS.

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The purpose of this study was to evaluate the effects of extracts of Coptidis rhizoma, Phellodendri cortex and Gardeniae fructus, which are medicinal herbs in Orengedoku-to (Huanglin-Jie-Du-Tang in Chinese), and crocetin (a major component of Gardeniae fructus) on experimental elevation of aqueous flare in pigmented rabbits. To produce aqueous flare elevation, 0.5 microg/kg lipopolysaccharide (LPS) was injected into the ear vein, or prostaglandin E2 (PGE2) 25 microg/ml, was applied to the cornea by means of a glass cylinder.

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We evaluated the effects of anti-inflammatory potency of corticosteroids and nonsteroidal anti-inflammatory drugs on prostaglandin E2 (PGE2)-induced aqueous flare elevation in pigmented rabbits. Transcorneal diffusion of PGE2, 25 microg/ml (7.09 x 10(-2) mmol/l), with the use of a glass cylinder was achieved to produce aqueous flare elevation.

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We evaluated the effects of topical instillation of mydriatics and vasoconstrictors on prostaglandin E2 (PGE2) induced aqueous flare elevation in pigmented rabbits. Transcorneal diffusion of PGE2 (25 microg/ml) by means of a glass cylinder produced aqueous flare elevation. Mydriatics (atropine sulfate, tropicamide, tropicamide plus phenylephrine hydrochloride, phenylephrine hydrochloride, and cyclopentolate hydrochloride) or vasoconstrictors (naphazoline nitrate and tramazoline hydrochloride) were topically administered before PGE2 application.

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The objective of the study was to investigate the effects of baicalin, baicalein, and wogonin (plant flavonoids) on interleukin-6 (IL-6) and interleukin-8 (IL-8) protein production, mRNA expression, and nuclear factor-kappaB (NF-kappaB) binding activities induced by interleukin-1beta (IL-1beta) in human retinal pigment epithelial cell line (ARPE-19) cells. To induce IL-6 and IL-8 mRNA expression and protein levels, IL-1beta was added to serum-free medium of ARPE-19 cells and incubated. The flavonoids were added to the medium.

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Purpose: To evaluate the effect of topical instillation of traditional herbal medicines, herbal extracts, and their components on the elevation of aqueous flare induced by prostaglandin E(2) (PGE(2)) in pigmented rabbits.

Methods: Transcorneal diffusion of 25 micro g/mL of PGE(2) was carried out through a glass cylinder placed on the cornea to induce aqueous flare elevation in pigmented rabbits. Traditional herbal medicines, herbal extracts, and their components were topically instilled before the PGE(2) application.

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We evaluated the role of topical iganidipine on experimental aqueous flare elevation in rabbits. Transcorneal diffusion of prostaglandin E(2) (PGE(2)), 25 microg/ml or 7.09 x 10(-2) mmol/l, or highly selective agonists for prostaglandin E(2) receptor subtypes (EP), 25 microg/ml, was achieved with the use of a glass cylinder to produce aqueous flare elevation in pigmented rabbits.

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