ObjectivesTo explore the clinical manifestations and treatment ofMycoplasma pneumoniae pneumonia (MPP) combined with venous thrombosis.MethodsThe clinical manifestations and treatment of MPP combined with venous thrombosis were retrospectively analyzed.ResultsTwo male patients were 5 years 2 months and 3 years 6 months old respec-tively. After treatment with erythromycin, corticosteroids, immunoglobulin, bronchoalveolar lavage and thrombolytic, both cases were cured. Conclusions It is necessary to pay attention to the occurrence of thrombosis in MPP. Early diagnosis and treatment of thrombosis is very important for the prognosis. The prevention of thrombosis needs to be further studied.

OBJECTIVE:To observe the therapeutic effect of compound glycyrrhizin on acute biliary tract infection com?bined with abnormal liver function.METHODS:The patients were randomly divided into trial group(141cases)and control group(120cases).The control group received ATP,CoA and inosine,and the trial group received compound glycyrrhizin60～120ml/d in addition to the treatment for control group.RESULTS:In trial group,113cases were remarkedly effective and28cases effective with a total effective rate of100%,and in control group,79cases were remarkedly effective and29cases effective with a total effective rate of90%.CONCLUSION:Compound glycyrrhizin has the anti-inflammatory effect and can protect the cell membrane of liver cells,shorten the hospital stay duration and decrease the occurrence of postoperative complications.

Objective To investigate the protective effects of daidzein (DD) on myocardial hypertrophy and fibrosis induced by pressure overload in rats and to study its mechanism. MethodsMyocardial hypertrophy and fibrosis model of rats induced by pressure overload was prepared by constricting abdominal aorta. The operated rats were randomly divided into sham operated control group, aorta-constricted model group, and three DD groups (30, 60, and 120 mg/kg). Four weeks later, the heart-weight (HW), left ventricular weight (LVW), the ratio of HW/BW and LVW/BW (LVI), and the cardio-myocyte diameters (MD) after dying by HE color were measured. The content of collagen and nitric oxide (NO), the activity of calcineurin (CaN) and Na+, K+-ATPase, Ca2+-ATPase in the left ventricle were quantified with spectrophotometry. The angiotension Ⅱ (AngⅡ) in the left ventricle was messured with radioimmunoassay. Results In aorta-constricted model group, the ratio of HW/BW, LVI, and MD as well as the content of collagen and AngⅡ, the activity of CaN in the left ventricle was significantly increased, and Na+, K+-ATPase, Ca2+-ATPase activity and NO content in the left ventricle were obviously decreased. After treatment of the left ventricular with DD, NO content, Na+, K+-ATPase, Ca2+-ATPase activity were significantly increased, the content of collagen and of AngⅡ and the activity of CaN in the left ventricle and the ratio of HW/BW, LVI, and MD were significantly reduced. ConclusionDD has protective effects on ventricular remodeling in rats with myocardial hypertrophy and fibrosis induced by pressure overload and its mechanism may be related to raising NO content and reducing the level of AngⅡ and the activity of CaN.

Objectives To detect gene mutation associated with hemophagocytic lymphohistiocytosis (HLH) and to identify mutation spectrum and clinical feature in HLH in children. Methods Thirty-seven (37) pediatric patients diagnosed with HLH according to 2004 clinical and laboratory criteria were enrolled from July 2012 to November 2015. Nucleotide sequences of all exons and their flanking intronic sequences of ten genes associated with HLH were amplified with PCR followed by direct sequencing. Point mutation analysis was performed after the direct sequencing. Results The median age of all the 37 patients was 2.6 years. The median ages of patients with gene mutation (n=22) and without gene mutation (n=15) was 2.09 years and 2.67 years, without statistical significance. Twenty-two patients were identified with gene mutations. All of them were heterozygous. UNC13D mutation (50%) is of the highest frequency in the above genes. The splicing mutations (38%) were the main type of UNC13D mutations,and missense mutations or frame-shift mutations were also found. There was no statistical difference in ages of onset and laboratory data of neutrophils, thrombocytes, NK cell activities within the three groups: multi-site mutations, single-site mutations and no mutations. EBV infection was detected in 70.3% patients. In mutation group, one patient died when he was in the period of inducing remission, and four patients were relapsed. Among them four patients were infected with EBV and one patients was negative at the onset while positive in recurrence. Conclusions UNC13D was the predominant causative gene in the Chinese population according our data. There was no significant relevance between age of onset, severity of disease and gene mutations. Attention should be paid to a patient with HLH gene mutation infected by EBV, which it might mean a poor prognosis.

Objective To investigate the survival profile of the intradermally injected mouse autologous skin fibroblasts and the changes of the collagen fibers by using green fluorescent protein labeling and two-photon fluorescence microscopy. Methods The cultured cells were transfected by EGFP lentivirus, and then the cells were injected into the corresponding mouse skin. Biopsy was taken from the animals after 1 and 2 months. The specimens made serial frozen sections, the survival profile of the injected cells and the changes of the collagen fibers were observed by two-photon fluorescence microscopy. The collagenic area and dermal thickness were measured with image analysis software, and statistical analysis was also carried out. Results Two-photon fluorescence microscopy showed clear images of the injected cells and collagen fibers. Both the area of collagen fibers and the dermal thickness were significantly increased in injected cells after 2 months (P<0.05), however, there were no difference between injected cells and control after 1 mouth (P>0.05). Conclusions Autologous cultured fibroblasts could survive in a long time after transplantating into the skin, and collagen could be newly produced, the depth of dermis increases, which provides a possibility to treat mini-defects of the tissue.

Objective To investigate the association between single nucleotide polymorphism (SNPs) (rs1053005 and rs744166) and expression level of STAT3 gene and the susceptibility to acute lymphoblastic leukemia (ALL) in Chinese children.Methods A case-control study was performed,and 184 children with ALL and 377 healthy children as controls were recruited.The genotypes of 2 SNPs were detected by using polymerase chain reaction-restriction fragment length polymorphism method.And the expression level of STAT3 gene was detected by using real-time PCR;All the data were analyzed by using SPSS 16.0 software.Results (1) In this study,the genotypes (GG,AG,AA) of rs1053005 had a significant difference between the ALL group and control group (x2 =6.737,P =0.034).Compared with control group,the A allele had a higher frequency in ALL group and A allele was a risk factor(x2 =5.853,P =0.016).But,there was no difference in frequency of genotype rs744166 between the 2 groups (x2 =1.866,P =0.393).(2) There was no significant association between genotypes and risk degree among 3 groups (high risk group,medial risk group and standard risk group) (x2 =0.335,P =0.987).(3) The expression level of STAT3 gene in patients with AA genotype was lower than that of the patients with GG genotype (t =4.758,P =0.009);and compared with patients of the standard risk group,high risk patients had a lower expression level of STAT3 gene (t =5.284,P =0.007).Conclusions The polymorphism of SNP rs1053005 was associated with ALL,with A allele being a risk factor;and the expression level of STAT3 gene maybe associated with the risk degree in ALL patients.

Objective To investigate the clinic characteristics of hepatosplenic γδT cell lymphoma (γδ HSTCL) and analyze the important role of morphology,immunology,cytogenetics and molecular(MICM) in the early diagnosis of γδHSTCL.Methods The clinical features of MICM of a rare case of childhood γδHSTCL had been analyzed,and the related literatures were reviewed.Results Bone marrow aspiration showed approximately 0.365 abnormal cells infiltrated.The immune phenotype analysis displayed 0.245 of the nuclear cells were abnormal ones,which possessed CD2/CD3/CD7/CD19/CD3s/cCD3 and TCRγδ expression.The immunohistochemical staining of spleen tissues showed clusters of differentiation (CD) 3/CD45 RO/CD8/Cytotoxic-granule associated protein (TIA-1)/leukocyte common antigen (LCA)/Granzyme B positive,CD4/CD20/T cell receptor (TCR) β/CD79 α/CD30/terminal deoxynucleotidy transferase (TdT) /CD10/ myeloperoxidase (MPO)/anaplasticlymphoma kinase (ALK) negative and 80.00％ of tumor cells displayed Ki-67 positive.The detection of spleen tissues by flow cytometry displayed that 72.26％ of the karyocytes were lymphocytes,with 88.90％ T lymphocytes.And 92.09％ of the T lymphocytes showed Ki-67/CD7dim,TCRγδ/CD2/CD8/CD34 positive,and TCRαβ/CD5/CD4/CD56 negative.And about 59.16％ of these karyocytes were abnormally matured T lymphocytes.The cytogenetic karyotype of bone marrow showed 46,XY.The detection of T cell receptor gene rearrangement showed TCRβ,TCRγ and TCRδ positive.The patient had been given prednisone of 60 mg/m2 when the diagnosis of γδHSTCL affirmed.But his parents discontinued chemotherapy for him and died.Conclusions MICM has shown a significant value in the diagnosis of γδHSTCL,a rare lymphoma in childhood.

Objective To investigate the effects of leukotriene in children with respiratory syncytial (RSV)viral bronchiolitis.Methods The blood and sputum levels of Ieukotriene were detected in 33 cases diagnosed RSV bronchiolitis and 12 cases which were diagnosed pneumonia without RSV infection.Thirty-three cases of bronchiolitis were devided into mild-moderate group(n =22)and severe group(n =11)according to the lowell score.Results The blood and sputum levels of leukotriene in mild-moderate group,severe group,and pneumonia group were(76.96 ± 28.19)pg/ml,(103.53 ± 16.85)pg/ml,(18.14.± 7.49)pg/ml;(31.83 ± 19.14)pg/ml,(67.11 ± 15.11)pg/ml,(6.81 ± 2.90)pg/ml in acute period,and(36.04 ±16.38)pg/ml,(52.27 ± 17.03)pg/m l,(18.14 ± 7.49)pg/ml of serum in recovery period.There were significant differences among three groups(F =48.09,P ＜ 0.001 ; F =15.50,P ＜ 0.001 ; F =44.43,P ＜0.001).After treatment,the blood levels of leukotriene were significantly decreased,but were still higher than that of pneumonia group(P ＜ 0.05).Conclusion The blood and sputum levels of leukotriene increase in children with RSV bronchiolitis,which is related with the severity of bronchiolitis.

Objective:In order to prevent misdiagnosis and degrade death rate, we explored the early diagnosis and correct treatment methods of traumatic pseudoaneurysm of internal carotid artery in sphenoid sinus,. Method: The clinic data of 6 cases who had traumatic pseudoaneurysm of internal carotid artery in sphenoid sinus and were admited in our hospital were analyzed retrospectively. Large numbers of literature about the disease were re-viewed. Some early diagnosis methods and optimal treatment schemes were proposed. Result: All patients had a history of cranium trauma and recurrent attacks nasal hemorrhage. There are two patients with a complication of sight loss in single eye. In the six cases, one case was treated with unilateral common carotid artery ligation, three cases were treated with aneurysm and internal carotid artery embolism by using sacculus proprius which is able to shedding , one case was treated with internal carotid artery embolism by using tiny circlip ring . These five pa-tients were crued with no severe complication. One patient death of hemorrhea. His nasal cavity was tamponaded repeatly because repeat nasal hemorrhage. However, he had never treated with internal carotid artery embolism. Conclusion:The patients who have traumatic pseudoaneurysm of internal carotid artery usually die of unmanageable hemorrhea. The patients may be cured if they could obtain an early diagnosis and correct treatment.

Objective To investigate the association of single nucleotide polymorphism (rs2295080) inmTOR gene with the susceptibility to acute leukemia (AL) in Chinese children.Methods A case-control study was performed by recruitment of 180 children with AL and 296 healthy children as controls. The genotype of this SNP was detected using PCR-RFLP. The data were analyzed by SPSS19.0.Results There was a signiifcant difference in genotypes in three groups (ALL, AML and con-trol) (P=0.026). And the SNP was associated with AL, with G allele being higher in AL group than that in controls (OR=1.413, 95%CI: 1.050-1.901,P=0.022). In ALL group, G allele was also higher than that in healthy group (OR=1.456, 95%CI: 1.052-2.015, P=0.023). However, no signiifcant association was observed in AML patients (P=0.302). In addition, ALL patients with GG gen-otype were associated with disease severity compared with patients with TT or GT genotype (OR=2.044, 95%CI: 0.569-7.341). ConclusionThe rs2295080 was associated with ALL, with G allele being a risk factor.