Publications by authors named "Zhenghua Ji"

As an integral component of the gram-negative bacterial cellular envelope, excess production of lipopolysaccharide (LPS) regularly precipitates causing intestinal damage and barrier dysfunction in avian species. Dihydromyricetin (DHM), a naturally occurring constituent in rattan tea, exhibits protective characteristics against various tissue injuries. However, the intervention mechanism of DHM on intestinal injury induced by LPS in chickens has not been determined.

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Ethnopharmacological Relevance: Ginkgo biloba, as the most widely available medicinal plant worldwide, has been frequently utilized for treat cardiovascular, cerebrovascular, diabetic and other diseases. Due to its distinct pharmacological effects, it has been broadly applications in pharmaceuticals, health products, dietary supplements, and so on. Ginkgolide C (GC), a prominent extract of Ginkgo biloba, possesses potential in anti-inflammatory and anti-oxidant efficacy.

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To investigate the expression and clinical significance of peripheral blood interleukin (IL)-17A, IL-22, T cell immunoglobulin molecule-3 (Tim-3), and galectin-9 (gal-9) in children with infectious mononucleosis (IM) caused by the Epstein-Barr virus (EBV). Peripheral blood of 54 children with IM (case group) was collected and divided into a liver damage group and a non-liver damage group. During the same period, 20 healthy children were in the control group.

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Background: Immune thrombocytopenia (ITP) is the most common etiology of acquired thrombocytopenia diseases in children. ITP is characterized by the immune-mediated decreased formation and excessive destruction of platelets. The pathogenesis and management of pediatric ITP are distinct from adult ITP.

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Objective: To investigate the effect of enhanced autophagy in megakaryocyte to proplatelet formation in children with immune thrombocytopenia(ITP).

Methods: Giemsa staining and immunofluorescence staining were used to observe megakaryocyte morphology and proplatelet formation, Western blot was used to determine the expression of cytoskeleton protein and autophagy related protein. Autophagr regulation drugs Rap or 3-MA was used to regulate autophagy of megakaryocytes.

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Objective To detect the number of CD4CD25FOXP3 regulatory T cells (Tregs) and the expression of autophagy related proteins in autoantibody positive children with immune thrombocytopenia (ITP). Methods Flow cytometry was used to sort Tregs in peripheral blood of newly-diagnosed ITP children or healthy donor controls, the expression of autophagy related gene ATG5 or ATG7 was calculated by their mean fluorescence intensity, and the phosphorylation of protein kinase B (AKT) or extracellular signal regulatory kinase (ERK) of CD4CD25 Tregs was determined by Western blot analysis. Results Compared with healthy donor control, the number of Tregs in ITP children decreased significantly, the expression of ATG5 and ATG7 decreased, and the phosphorylation of AKT and ERK decreased significantly.

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Aims: Nasopharyngeal carcinoma (NPC) is the most common primary malignancy of the nasopharynx. Due to its local recurrence and distant metastasis, conventional therapy is usually ineffective. MDA-7/IL-24 (melanoma differentiation associated gene 7), a member of the IL10 family of cytokines, inhibits growth of various human cancer cells, but the underlying mechanism is largely unknown.

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Mixed phenotype acute leukemia (MPAL) is a rare type of acute leukemia with a poor clinical outcome which lacks specific therapy. To evaluate the therapeutic efficiency of CCLG-2008 protocol used for acute lymphoblastic leukemia (ALL) in China on MPAL children who were initially diagnosed as ALL by morphology, we reviewed patients' database diagnosed as ALL and MPAL according to WHO classification and compared their outcomes from July 2008 to June 2012. Total newly enrolled ALL in this study were 309 cases by morphology, in which ten cases were identified as MPAL mainly by immunophenotyping: B+ myeloid (3/10), T+ myeloid (2/10), B + T (4/10), trilineage (1/10).

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This study was aimed to explore the clinical significance of monitoring level of minimal residual disease (MRD) at different time point in B-lineage childhood acute lymphoblastic leukemia (B-ALL). Two hundred and six children with B-ALL were enrolled in this study from Augest 2008 to September 2011 in our hospital. MRD levels were detected by flow cytometry at day 15, 33 and week 12 after initial chemotherapy.

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Objective: To explore clinical and experimental features of 28 cases of childhood acute myeloid leukemia (AML) with 11q23/MLL gene rearrangements.

Methods: Karyotypes of 234 cases of de novo childhood AML were analyzed using short-term culture of bone marrow cells and R-banding. The fusion transcripts involving MLL gene and partial tandem duplication of MLL (MLL-PTD) were detected by multiple reverse transcription polymerase chain reaction (RT-PCR) assay.

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Objective: To evaluate the clinical and laboratory features of pediatric inv(16) acute myeloid leukemia (AML) retrospectively.

Method: Dual color fluorescence in situ hybridization (D-FISH) using a LSI CBFβ inv(16) break apart probe labeled by Spectrum red and Spectrum green was performed in 15 acute myeloid leukemia cases, including 13 cases with or without abnormal eosinophils but with positive core binding factor β (CBFβ)-MYH11 fusion transcript detected by RT-PCR, and 2 cases with trisomy 8 (+8). The results were compared with the morphology, immunophenotype, karyotype and RT-PCR.

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This study was aimed to explore the clinical features and prognosis outcome of childhood T-cell acute lymphoblastic leukemia (T-ALL). The clinical data of 38 cases of newly diagnosed T-ALL from Jan 2005 to Aug 2010 were analyzed retrospectively, and 78 cases of B-ALL with intermediate and high risk were collected as control group, then the sensitive rate of patients to prednisone pretreatment, complete remission (CR) rate at day 33 after induction chemotherapy, relapse rate and 3-year event-free survival (EFS) were compared between T-ALL and B-ALL children. The results showed that no significant statistic difference were found in distribution of age, infiltration of liver, spleen and lymph nodes as well as central nervous system disease, chromosome abnormality, expression level of fusion gene and so on between T-ALL and B-ALL groups (p > 0.

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Objective: To explore genes associated with risk classification of childhood acute lymphoblastic leukemia (ALL) by gene chip technology.

Methods: Group A and B were both composed of three newly diagnosed ALL cases with standard risk. After re-evaluation, group B was relegated to high-risk.

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Objective: To determine whether human metapneumovirus (hMPV) was circulating in Suzhou area and the epidemiology and clinical features associated with hMPV infection.

Method: Samples were collected from January 2006 to December 2007; respiratory specimens were tested for the presence of hMPV by reverse-transcription polymerase Chain reaction (RT-PCR). PCR products of hMPV N gene from some patients were randomly selected for sequencing analysis, and the sequences of the nucleotides and deduced amino acids were compared with those in the GenBank.

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This study was conducted to determine the seasonal distribution of human metapneumovirus (hMPV) infection in the Suzhou area of China, to discuss the epidemiological and clinical features of the disease, and to examine the genetic variation of the virus in China. From November 2005 to October 2006, a total of 1932 children with acute respiratory infections, admitted to the Children's Hospital Affiliated to Soochow University, were tested for the presence of hMPV using a reverse-transcription polymerase chain reaction. Of the 1932 collected samples, 128 (6.

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Objective: To probe the epidemiological trend of respiratory syncytial virus (RSV) and cellular immunological change of RSV bronchopneumonia among children in Suzhou in the past five years.

Methods: 10,205 children with acute respiratory tract infection from January 2001 to December 2005 were enrolled into the study. Nasopharyngeal aspirates were obtained from the respiratory tract by aseptic vacuum aspiration.

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Objective: Previous studies have shown that bacillus calmette-guerin (BCG) can deviate TH2 response toward TH1 response, resulting in a suppressive effect on the development of asthma/atopy. This study examined the effect of BCG treatment on regulatory T cells in asthmatic mice to investigate the possible mechanism.

Methods: Kunming mice were sensitized and challenged with ovalbumin (OVA) to establish asthmatic models.

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Objective: With the improvement of the diagnosis and treatment, the complete remission (CR) rate and the survival rate of childhood acute lymphoblastic leukemia have been increased in the recent 10 years. The objective of this study was to analyze the outcomes of 119 standard-risk childhood acute lymphoblastic leukemia (SR-ALL) patients, and explore how to improve the survival rate in ALL.

Methods: A total of 119 patients aged 14 months to 15 years were diagnosed as SR-ALL according to the Suggestion of Diagnosis And Treatment for Childhood Acute Leukemia-1993.

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Objective: To investigate the interrelations among morphology, immunology, cytogenetics and clinical outcome in childhood acute leukemia with 11q23 abnormalities.

Methods: Eighteen patients with 11q23 abnormalities, from 320 childhood acute leukemia patients, were retrospectively analysed for cell morphology, flow cytometry, immunophenotyping, R-banding karyotype as well as clinical features and prognosis. Twenty cases of childhood AL with normal karyotype during the same period were used as control.

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