Publications by authors named "Ya-Zhen Li"

Pulmonary fibrosis features in damaged pulmonary structure or over-produced extracellular matrix and impaired lung function, leading to respiratory failure and eventually death. Fibrotic lungs are characterized by the secretion of pro-fibrotic factors, transformation of fibroblasts to myofibroblasts, and accumulation of matrix proteins. Imperatorin shows anti-inflammatory effects on alveolar macrophages against acute lung injury.

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  • The study aimed to explore how common malocclusion (poor alignment of teeth) is and its relationship with dental caries among 8-9 year olds in the Laoshan district of Qingdao city, providing insight for early orthodontic intervention.
  • A survey of 1,803 children revealed that 73.32% experienced malocclusion, with various classifications noted, and a significant percentage also had dental caries (64.23%).
  • The findings suggest a troubling prevalence of malocclusion in the region, indicating a strong connection between malocclusion and the presence of dental caries.
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Imperatorin is one of the furanocoumarin derivatives and exists in many medicinal herbs with anticancer, antiviral, antibacterial, and antihypertensive activities. In this study, we examined the anti-inflammatory effects of imperatorin on inflammation-associated lung diseases. Imperatorin reduced iNOS and COX-2 expression and also IL-6 and TNFα production enhanced by zymosan.

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  • Platelet indices, such as mean platelet volume (MPV) and plateletcrit (PCT), may indicate megakaryopoietic activity in patients with immune thrombocytopenic purpura (ITP), but their diagnostic accuracy still needs further research.
  • In comparison with myelodysplasia and control groups, patients with ITP showed higher MPV, lower PCT, and a unique platelet distribution width pattern, along with increased megakaryocytes.
  • Sensitivity and specificity tests revealed that MPV and PCT can be effective markers for diagnosing ITP, especially when combined in parallel or series tests, suggesting their potential utility in clinical settings.
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The aim of this study was to evaluate the clinical significance of circulating tight junction (TJ) proteins as biomarkers reflecting of leukaemia central nervous system (CNS) metastasis. TJs [claudin5 (CLDN5), occludin (OCLN) and ZO-1] concentrations were measured in serum and cerebrospinal fluid (CSF) samples obtained from 45 leukaemia patients. Serum ZO-1 was significantly higher (p < 0.

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Background: Human granulocytic anaplasmosis (HGA) is an acute tick-borne infectious disease with increasing morbidity and mortality, but is rarely considered in clinical practice. Because human-to-human transfusion or nosocomial transmission can occur, diagnosis is difficult when the history of tick bites is not clear.

Methods: We present clinical features and laboratory data of HGA patients who had no clear tick bite history.

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  • Metastasis to the central nervous system (CNS) is a major challenge in leukemia treatment, with key proteins like MMP-9, CCL2, and sVCAM-1 involved in tumor cell behavior, but their specific roles in this context are not fully understood.
  • A study measuring these proteins in both serum and cerebrospinal fluid (CSF) of 33 leukemia patients found that levels of sVCAM-1 and CCL2 were significantly elevated in those with CNS metastasis compared to those without and healthy controls, while MMP-9 levels showed different trends.
  • The analysis indicated potential for MMP-9, CCL2, and sVCAM-1 in CSF to serve
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Association studies between single-nucleotide polymorphism (SNP) rs2292832 on miR-149 gene and cancer risk have been previously analyzed in several types of cancer. The aim of this study was to evaluate the association between miR-149 polymorphism and risk of nasopharyngeal carcinoma (NPC). miR-149 gene polymorphism was genotyped using polymerase chain reaction (PCR)-restriction fragment length polymorphism (RFLP) in 158 patients with NPC and 242 healthy individuals.

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This case-control study focused on estimating the association between miR-146a polymorphism and risk of nasopharyngeal carcinoma (NPC) in central-south China. In total, 160 patients with NPC and 200 healthy controls in central-south China were genotyped using polymerase chain reaction-restriction fragment length polymorphism assay. Chi-square test was used to assess the different distribution of miR-146a polymorphism between NPC patients and controls; and logistic regression analysis was applied to analyze the associations between miR-146a polymorphism with cancer risk in different contrast models.

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  • - The study aimed to analyze the expression of transcription factors and cytokines related to Th17 and Treg cells in the blood of gastric cancer patients, to better understand their role in the disease's progression.
  • - Researchers used QRT-PCR and ELISA methods to evaluate mRNA levels and cytokine concentrations in blood samples from patients with gastric cancer, benign conditions, and healthy individuals, finding higher levels of RORgammat and FoxP3 in cancer patients.
  • - Results indicated that patients with gastric cancer exhibited elevated Th17 and Treg cells, especially in advanced stages, suggesting that monitoring these levels could help in diagnosing and predicting disease outcomes.
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Background: Estrogen deficiency causes atrophic changes within the urogenital tract, and is associated with urinary symptoms. The purpose of this study was to investigate the effects of estrogen and tibolone on bladder histology, and the changes of estrogen receptor alpha and beta (ERalpha and beta) protein expression in the detrusor muscle.

Methods: Forty female rats were separated into four groups of ten each.

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Aim: Runx3, a type of Runt family member, plays an important role in immune regulation. In this study, we cloned and analyzed the cDNA encoding human Runx3 from T lymphocyte, expressed Runx3 protein in E.coli system, and studied the relation between Runx3 and some immune disorders or tumors.

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Objective: To investigate the mechanism of estrogen action on bladder.

Methods: By examining the functional, histological and ultrastructural changes that occurred in the bladder of rats with estrogen depletion and supplementation, we studied the actions of estrogen on bladder. A total of 30 female adult Sprague-Dawley rats were divided into 3 groups, including control group, bilateral ovariectomy (OVX) group and bilateral ovariectomy plus estradiol valerate (OVX + E) group.

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