1.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.
2.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.
3.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
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.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.
6.The Biological Activities of Conditioned Medium Derived from Human Dermal Papilla Cells Cultured In Vitro
Yang LUO ; Fei HAO ; Baiyu ZHONG ; Yue MAI ; Xiaoyong JIANG
Chinese Journal of Dermatology 2003;0(11):-
Objective To investigate the biological activities of a conditioned medium for human dermal papilla. Methods Culture medium of the lower passage human dermal papilla cells was collected as the conditioned medium. The growth pattern and the growth curve of the higher passage human dermal papilla cells cultured with conditioned medium were observed in vitro. And the morphology of the co-culture of the higher passage human dermal papilla cells and the lower passage human dermal papilla cells was observed. Results The higher passage human dermal papilla cells, which was cultured with conditioned medium from the lower passage human dermal papilla cells, showed aggregative growth pattern. And the growth curve of the higher passage human dermal papilla cells was much better than that in the control groups (P
7.The value of diagnostic imaging in pancreatic carcinoma
Aiming YANG ; Xinghua LU ; Jiaming QIAN ; Chanrong MAI
Chinese Journal of Digestive Endoscopy 1996;0(04):-
Objective To evaluate the value of clinical data and various methods of diagnostic imaging in the patients with pancreatic cancer. Methods Two hundreds and fifty-six patients with pancreatic cancer admitted into Peking Union Medical College Hospital between 1996 and 2004 were included. The clinical symptom and the accuracy of various imaging methods (B-US, CT, ERCP, EUS, DSA and MRI) in assessing pancreatic carcinoma were analyzed. Results Weight lost was the most common symptom in 79% of patients with pancreatic carcinoma. Jaundice was mostly seen in patients with pancreatic head carcinoma. Upper abdominal pain was in 86% of patients with carcinoma in pancreatic body and tail. The diagnostic accuracies of B-US, CT, ERCP, EUS, DSA and MRI were 83% , 89% , 90% , 91% , 82% and 79% respectively. Conclusion B-US and CT scanning should be undergone in patients with abdominal pain, jaundice and weight lost who were suspected to have pancreatic carcinoma. Further imaging techniques such as EUS, ERCP and MRI should be advised in patients highly suspected to have pancreatic carcinoma, in spite of the results of B-US and CT were negative.
8.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.
9.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.
10.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.