1.Research update on the origin of cardiac fibroblasts.
Yang YING ; Gu ZHENJIE ; Mai JINGTING
Chinese Journal of Cardiology 2015;43(8):750-752
Fibroblasts
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Heart
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Humans
2.Risk factors of nosocomial pulmonary fungal infection in COPD patients
Tao YANG ; Yonghong WEN ; Yanting MAI
Chinese Journal of Primary Medicine and Pharmacy 2008;15(9):1459-1460
Objective To investigate the risk factors and the immune functions for noeocomial palmonary fungal infection (PFI) in COPD patients.Methods The data of 55 cases of nosocomial PFI were analyzed,and examined the level of T Lymphocyte Subsets (TLS) in peripheral blood from 67 cases COPD,then compared with 54 healthy donors.Results Nosocomial pulmonary fungal infection Candida Albicans was ranked the first pathogen.CD3 and CD4 of COPD with PFI were significantly ower than COPD and healthy donors(P<0.05).Conclusions We should improve the immunity of patients in the process of therapy.We should reasonable use of bread spectrum antibiotics and corticosteroids in order to reduce incidence of pulmonary fungal infection.
3.MR Appearances of Anterior Cruciate Ligament Injury of Knee Joint
Chunhua MAI ; Yuqiong YANG ; Youzhen YIN
Journal of Practical Radiology 2001;0(09):-
Objective To evaluate MR appearances of normal and injured anterior cruciate ligament(ACL).Methods The MR findings of normal ACL in 16 cases and ACL tear in 15 cases were reviewed retrospectively.Results Normal ACL appeared as a flat band with low signal intensity on T1 and T2-weighted imaging. The injured ACL can appeared as interruption in continuation(n=5), irregular shape(n=1),abnormal direction(n=2) and increased in signal intensity(n=7).Conclusion MRI is a accurate and noninvasive diagnostic method for ACL tear.
4.Interaction between human augmenter of liver regeneration and Na~+-K~+-ATPase in vitro
Minghua TONG ; Xiangping KONG ; Mai LI ; Lianping YANG ; Rude YANG
Chinese Journal of Pathophysiology 1986;0(04):-
AIM:To check the physical interaction between GST-Na+-K+-ATPase domain and recombinant human augmenter of liver regeneration (rhALR) by GST pull down assay. METHODS: With PCR and genetic recombinant techniques, the coding region of ? subunit of Na+-K+-ATPase was cloned into expressing plasmid pGEX-4T and identified by endonuclease digestion and sequencing methods. Under the inducing of 0.1 mmol/L IPTG, the fusion protein GST-Na+-K+-ATPase domain was highly expressed by E.coli DH-5?. After hypersound quassating, the GST-Na+-K+-ATPase domain was purified by glutathione agarose beads and the physical interaction with rhALR was checked by GST pull down assay. RESULTS: Analysis by SDS-PAGE showed the rhALRs of monomer and dimmer in GST-Na+-K+-ATPase domain lane. The Western blotting of the GST-pull down assay showed the same results as well. CONCLUSION: The Na+-K+-ATPase domain is associated with rhALR specifically in vitro.
5.The variation of insulin like growth factor-I and glucose and correlation in children with sepsis
Yang TIAN ; Cuiping ZHU ; Jie HONG ; Yiling HUANG ; Jianning MAI
Journal of Clinical Pediatrics 2015;(6):543-547
Objective To explore the variation of insulin like growth factor-I (IGF-I) and glucose and correlation in children with sepsis. Methods Forty-two children with sepsis in pediatric intense care unit were enrolled from January 2009 to January 2010. In the morning (2nd morning) after admission, the blood glucose, serum IGF-I, cortisol, insulin, IL-6, and IGF-binding protein-I (IGFBP-1) were detected. In the 3rd and 5th morning, the serum IGF-1 was detected again. According to the blood glucose level of the 2nd morning, the children with sepsis were divided into hyperglycemia group and normal group. Meanwhile, 60 healthy children were served as control group. The data had been compared among three groups. Results In the 2nd morning, the levels of blood glucose, serum IGF-I, cortisol, insulin, and IL-6 were signiifcantly different among three groups (all P<0.05), but the serum IGFBP-I was not signiifcantly different (P>0.05). Compared with control group, the sepsis children with hyperglycemia and with normal blood glucose all had signiifcantly higher serum levels of cortisol and IL-6, and signiifcantly lower serum level of IGF-I. In the 2nd, 3rd, and 5th morning, the serum levels of IGF-1 were not signiifcantly changed with time in sepsis children with hyperglycemia and with normal blood glucose (all P>0.05). Meanwhile, there were no signiifcant differ-ences in the serum levels of IGF-1 between sepsis children with hyperglycemia and with normal blood glucose in the 2nd, 3rd, and 5th morning (all P>0.05). In children with sepsis, the blood glucose and serum IGF-1 was not correlated in the next morning (r=0.152, P=0.267). Conclusions The serum level of IGF-I decreased but maintain stable in children with sepsis. The change of blood glucose may be not related with IGF-I.
6.Methodological comparison on two kinds of method for detecting serum human epididymis protein 4 and bias evaluation
Qikang WU ; Binhong CHEN ; Zhirong LIANG ; Tingting YANG ; Aifen MAI
International Journal of Laboratory Medicine 2015;(5):617-618
Objective To compare the performance of 2 kinds of quantitative detection method the chemiluminescence immu-moassay and the enzyme-linked immunosorbent assay(ELISA)for detecting serum human epididymis geneproduct 4(HE4),and to explore the accuracy and practical value of the two methods.Methods In accordance to the document EP9-A2 of NCCLS,the Roche automatic electrochemical immunoassay system as the comparative method(X)and the ELISA as the testing method(Y )were per-formed according to the requirements of the detection kits.Results The serum HE4 level could be accurately reflected by the two methods.The correlation coefficient(r)in comparing these two kinds of method was ≥0.975,which showed that there was a high correlation between them.The detection results of the two methods were compared by paired sample t-test,and no statistically sig-nificant difference was found between them(P >0.05).Conclusion Because of CLIA′88 giving no specific medical decision level of HE4 and clinical acceptable level,therefore the expected bias of credibility interval can not be calculated or whether being clinically acceptable is unable to be judged.Based on the comparison of paired sample t test,these two kinds of detection methods can be used interchangeably to a certain extent.
7.Effect of 2790 nm YSGG fractional laser on facial atrophic acne scars
Peng YANG ; Yue MAI ; Juan LI ; Linchao SUN
Chinese Journal of Medical Aesthetics and Cosmetology 2013;19(5):355-358
Objective To evaluate the effect of resurfacing facial atrophic acne scars with 2790 nm YSGG fractional laser.Methods 38 patients with facial atrophic acne scars were treated with the 2790 nm YSGG fractional laser.All patients were randomly divided into two groups:group A using the combination with ablative and non-ablative mode of treatment; group B only using the non-ablative mode throughout the entire face,four treatment sessions for each patient,6 weeks interval.Comparative photographs were taken by using VISIA.Specific complexion analysis was used to identify and quantify depressed scars and texture,and patient satisfaction was graded with a 4-point scale.Results All of facial atrophic acne scars obtained different degree of improvement were treated by 4 times.In groups A and B,cure rate achieved 56.0 % and 30.8 %,respectively.All the 38 patients had a chieved efficacy (81.6 %),and they were satisfied with the results (84.2 %).No severe side effect was observed.Conclusions 2790 nm YSGG laser is easy to manipulate and is more exactly than other lasers.It is especially effective in enhancing the clinical outcomes of scar revision with less complications and pigmentation,and thereby 2790 nm YSGG fractional laser can provide the patients with superficial scar in face as an additional therapeutic option.
8.Meta-analysis on the association of calpain-10 gene UCSNP-43 polymorphism with type 2 diabetes in Chinese Han population
Huanhuan MAI ; Yi WANG ; Ling LI ; Gangyi YANG ; Shengbing LI
Chinese Journal of Endocrinology and Metabolism 2010;26(6):471-473
To evaluate the association of ealpain-10 gene UCSNP-43 polyorphism with type 2 diabetes in Chinese Han population.Meta-analysis showed that calpain-10 gene UCSNP-43 polymorphism may be associated with type 2 diabetes in Chinese Han population.Allele G and genotypo GG may be risk factors for type 2 diabetes,while allele A and genotype GA may be the protective factors.
9.Longitudinal study of the tendency and influential factors for behavior problem among preschool children
Lingbo MENG ; Siyuan YANG ; Jianning MAI ; Xiaojing LI
Chinese Journal of Applied Clinical Pediatrics 2016;31(14):1091-1094
Objective To analyze the tendency and influential factors and relationship for behavior problem among 3 to 6 years old preschool children.Methods By a prospective study,the questionnaire survey was carried out in 551 parents of 3 to 6 years old children from kindergarten in Guangzhou,including General Situation Questionnaire,the Strengths and Difficulties Questionnaire(parent version) and 3-7 years old children Behavioral Style Questionnaire.The data were collected at baseline and 1 year follow-up,and were analyzed by the prospective study method.Results Baseline survey 733 valid questionnaires,551 questionnaires were followed up (follow-up rate was 75.2%),the effective questionnaires were 526 (effective rate was 95.5%).The detection rate of behavior problem reduced by age (t =1.975,P =0.049),especially in the kind problem of conduct (t =2.888,P =0.004),friendship (t =2.572,P =0.010) and prosocial behavior(t =-3.329,P =0.001).In the mean time,the degree of cutting down in girls was more obvious than in boys (t =2.359,P =0.019).The influential factors include mother'age,parental education level,structure of family and children' temperament.Children's gender and whether the only child has no significant effect on behavior problems,and the family income only affects the change of behavior problems.Conclusions The detection rate of behavior problem reduce by age and influenced by many factors.Intervention measures must be synthetically considered various related factors.
10.Comparative study on clinical manifestations and antibiotics resistance in neonates with the sepsis caused by Klebsiella pneumoniae and Escherichia coli
Jingyun MAI ; Zuqin YANG ; Minli ZHU ; Zhenlang LIN
Chinese Journal of Perinatal Medicine 2011;14(4):245-250
Objective To compare the clinical characteristics and antibiotics resistance of neonatal sepsis caused by Klebsiella pneumoniae and Escherichia coli in order to provide guidance for early diagnosis and appropriate treatment. Methods Forty-two newborns with Klebsiella pneumoniae sepsis and 50 newborns with Escherichia coli sepsis in the neonatal intensive care unit of Yuying Children's Hospital of Wenzhou Medical College from January 2000 to October 2009 were enrolled into this study. The clinical data, laboratory examinations and prognosis of these newborns were retrospectively analyzed and compared. The antibiotic resistance data of different onset age of the two diseases were compared. Early-onset sepsis was defined as the age at the onset ≤3 days, and late-onset sepsis was defined as the age at the onset >3 days. Results (1) Comparison of clinical characteristics: Klebsiella pneumoniae sepsis caused higher incidence of apnea or gasp compared with Escherichia coli sepsis (61.9% vs 6.0% ,x2= 17. 34, P<0. 05); the time of developing to multiple organ dysfunction syndrome or disseminated intravascular coagulation of the newborns with Klebsiella pneumoniae sepsis [(40±28) h] was shorter than that of the newborns with Escherichia coli sepsis [(89±26) h] (t= -3.17, P<0.05); while the incidence of purulent meningitis of Klebsiella pneumoniae sepsis was lower ( 4. 8% vs 30. 0 %, x2 = 9.65, P < 0. 05 ). ( 2 ) Comparison of non-specific laboratory examinations: compared with Escherichia coli sepsis, Klebsiella pneumoniae sepsis caused higher incidence of the leucocyte count > 25 × 109/L (42. 9% vs 22.0%, x2 = 4. 60,P<0. 05), platelet count < 100 × 109/L (52.4% vs 18.0%, x2 = 12.07, P<0. 05) and C-reaction protein >8 mg/L (95.2% vs 76.0% ,x2 =6. 55, P<0. 05). (3) Comparison of results of antibiotic resistance: the resistance rate of Klebsiella pneumoniae (81.8%00-100. 0%) to Cephalosporins was higher than that of Escherichia coli (17. 2%-63. 2%) (x2 =6.97-11.92, P<0. 05); the resistance rates of late-onset sepsis of Klebsiella pneumoniae to Amoxicillin/clavulanic-acid and Cefoperazone/sulbactam were higher than those of Escherichia coli (75.0% vs 0.0%, x2 =26.67, P<0. 05;83. 3%vs 0. 0%, x2 = 12.53, P<0. 05 respectively); no resistance to Imipenem were found. The percentages of extended spectrum β-lactamases (ESBLs) positive Escherichia coli and Klebsiella pneumoniae were obviously higher in neonates with late-onset sepsis than those early-onset ones (65.0% vs 17. 8%,x2 = 11.06, P<0. 05; 100. 0 % vs 30. 0 %, x2 = 20. 22, P<0. 05 respectively); and positive ESBLs rate of the late-onset Klebsiella pneumoniae sepsis was higher than that of Escherichia coli sepsis (100. 0% vs 65.0%, x2 =9.16, P<0. 05). (4) Comparison of mortality rate: the mortality rate of Klebsiella pneumoniae sepsis was higher than that of Escherichia coli sepsis (21.4% vs 4. 0%,x2=6.59, P < 0. 05 ) . Conclusions Compared with Escherichia coli septicemia, Klebsiella pneumoniae septicemia has more severe symptoms, developed to multiple organ dysfunction syndrome or disseminated intravascular coagulation quicker, and has higher mortality rate. The percentage of ESBLs positive Escherichia coli and Klebsiella pneumoniae increased rapidly. The clinical use of antibiotics should be rationale.