Publications by authors named "Ai-qing Wen"

Thrombocytopenia is a common complication of critical care patients. The rates of bleeding events and mortality are also significantly increased in critical care patients with thrombocytopenia. Therefore, the Critical Care Medicine Committee of Chinese People's Liberation Army (PLA) worked with Chinese Society of Laboratory Medicine, Chinese Medical Association to develop this consensus to provide guidance for clinical practice.

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Introduction: The Surviving Sepsis Campaign guidelines recommend early goal-directed therapy (EGDT) for the resuscitation of patients with sepsis; however, the recent evidences quickly evolve and convey conflicting results. We performed a meta-analysis to evaluate the effect of EGDT on mortality in adults with severe sepsis and septic shock.

Methods: We searched electronic databases to identify randomized controlled trials that compared EGDT with usual care or lactate-guided therapy in adults with severe sepsis and septic shock.

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Lipoxin A4 (LXA4), as an endogenously produced lipid mediator, promotes the resolution of inflammation. Previously, we demonstrated that LXA4 stimulated alveolar fluid clearance through alveolar epithelial sodium channel gamma (ENaC-γ). In this study, we sought to investigate the mechanisms of LXA4 in modulation of ENaC-γ in lipopolysaccharide (LPS)-induced inflammatory lung injury.

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Alzheimer's disease (AD) is characterized by the degeneration of basal forebrain cholinergic neurons, whose survival and function are affected by neurotrophins and their receptors. The impaired signaling pathway of brain-derived neurotrophic factor/tropomyosin-related kinase B (BDNF/TrkB) is considered to play an important role in AD pathogenesis. To explore the association of polymorphisms within the NTRK2 gene (encoding TrkB) and sporadic AD (sAD), a case-control study was conducted in a Chinese Han cohort including 216 sAD patients and 244 control participants.

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Recent reports have indicated that IL-1[beta] is excessively released into the circulation during sepsis, and the expression level is closely correlated with the clinical course. Polymorphisms in the promoter region of IL-1B have been shown to affect LPS-induced IL-1[beta] transcription in vitro and IL-1[beta] plasma levels in healthy adults and to confer susceptibility to inflammatory diseases. However, it is not clear whether they confer susceptibility to sepsis after major trauma.

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A growing number of researchers have recognized the importance of using lipopolysaccharide (LPS) as target for the prevention and treatment of sepsis. However, no drugs targeting LPS have been applied clinically. In this study, LPS-inhibiting aptamers were screened by Systematic Evolution of Ligands by Exponential Enrichment (SELEX), and their therapeutic effects for experimental sepsis were observed.

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Objective: Several polymorphisms in the CD14 promoter have been reported to be associated with various inflammatory diseases. However, conflicting results have been shown in association studies in different populations. This study aimed to investigate the possible functional significance of both the G-1145A and T-159C polymorphisms in the CD14 promoter and their association with organ dysfunction and sepsis in adult trauma patients.

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In the present study, we observed the expression of toll-like receptor 4 (TLR4) and its downstream signal pathway in peripheral blood monocytes (PBMs) from patients with acute cerebral infarct (ACI). The expression of TLR4 and MyD88 by PBMs was determined by flow cytometry and reverse transcriptase-polymerase chain reaction, and nuclear factor-kappaB (NF-kappaB) activity was detected by electrophoretic mobility shift assay. Ischemia/reperfusion injury-induced cerebral edema, infarction area, and neurologic impairment scores were determined in MyD88 gene knockout mice.

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Previous studies have indicated that there are 3 common haplotypes composed of the -1470, -511, and -31 loci in the interleukin 1beta (IL-1beta) promoter in the Chinese population. The purpose of this study was to investigate the relationship between these haplotypes and lipopolysaccharide (LPS)-stimulated IL-1beta expression by whole blood leukocytes in vitro and to evaluate the effects of these haplotypes on IL-1beta gene transcription. Genomic DNAs were obtained from 105 healthy subjects.

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Objective: To investigate the frequencies of -1470, -511 and -31 single nucleotide polymorphisms (SNPs) in the promoter of IL-1beta and its haplotype constitution in Chongqing population.

Methods: One hundred and twelve healthy Chongqing people were enrolled in this study. Polymorphisms at -1470 (G to C), -511 (T to C) and -31 (C to T) of IL-1beta were genotyped with the method of restriction fragment length polymorphism (RFLP).

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Objective: To investigate the frequencies of -31, -511 and -1470 single nucleotide polymorphisms (SNPs) in the promoter of IL-1 beta in Chongqing population and address the question whether they are in linkage disequilibrium (LD).

Methods: One hundred and twelve healthy Chongqing people were enrolled in this study. Polymorphisms at -31 (C>T), -511 (T>C) and -1470 (G>C) of IL-1 beta were genotyped with the method of restriction fragment length polymorphism (RFLP).

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