1.Progress of ELMO family on malignant tumor invasion and metastasis
Chengming GUO ; Huiyun PENG ; Wen LUO ; Qiongfang YU ; Dian GAO
Chinese Journal of Pathophysiology 2015;(12):2296-2300
It is one of the main characters of malignant tumors that malignant tumor cells invade surrounding tissues and metastasize to distant tissues .Multiple factors are involved in this complicated dynamic process .Metastasis is the major factor influencing recurrence and prognosis .Therefore, it is important to explore the mechanism of invasion and metastasis for reducing recurrence rate and mortality of malignant tumors .Engulfment and cell mobility ( ELMO) family is one kind of conserved protein in evolutional process .It includes 3 members, ELMO1, ELMO2 and ELMO3.The members of ELMO family play an important role in cell phagocytosis and cell migration , and they also have close correlation with ma-lignant tumor cell invasion and metastasis .In this paper , we review the progress of the relationship between ELMO family and malignant tumor invasion and metastasis .
2.Analysis of characteristics of blood loss for laboratory test for 246 cases of critically ill premature infants
Guo WEN ; Huabao PENG ; Zhanghua HOU ; Yonghui OU ; Lifang ZHOU
International Journal of Pediatrics 2015;42(2):213-217
Objective To analyze the characteristics of blood loss for laboratory test of critically ill premature infants,and to seek feasible measures to reduce the blood loss.Methods Two hundred and forty-six cases of critically ill premature infants admitted to the neonatal intensive care unit from April 2012 to April 2013 were analyzed the blood loss for test during the hospitalization and the clinical features of blood loss with different gestational age,different weight within the first four weeks after admission.Then the application of blood loss according to test category was described.The blood volume demanded in theory was determined by the formula B =5 (∑ s + 0.1),then calculated the phlebotomy overdraw on the basis of the practical blood loss and analyzed the characteristics of overdraw per patients per day in first two weeks after admission.Results Among 246 patients,The median blood loss figure was 25.57 ml for each infants with the range between 7.10 ml ~ 119.20 ml,and the blood loss concentrated in first four weeks,which showed a decreasing trend with time.There was a statistically significant difference(P <0.05)that the smaller gestational age,the lower birth weight,the more daily blood loss per patient per day in first two weeks,but no significant differences(P > 0.05) between the third and fourth week.The largest proportion of the blood samples was used for clinical chemical tests(31.49%),followed by blood gas analysis (19.03%),immunoassays (12.69%),blood cultures (12.63%),hematology (12.28%).The practical blood loss was about twice times of blood volume demanded for tests in theory,which the median was 7.8 times to the latter(25.57 ml vs 3.26 ml).It showed statistically significant difference(P <0.05) between blood overdraw per patients per day in the first week and the second week.Compared with different gestational age and birth weight,the difference of overdraw was also statistically significant(P <0.05).According to test category,blood culture was the most significant samples of phlebotomy overdraw,followed by biochemical,other,blood gas analysis,the percentage was 76%,64%,45% and 41% respectively.Conclusion The blood loss for laboratory test and the phenomenon of blood waste is serious in critically ill preterm infants.The smaller the gestational age is,the lower the weight is,the amount of blood loss and phlebotomy overdraw are more significantly.Biochemical and blood gas analysis are the main items of blood loss.
3.Species distribution and antifungal susceptibility of fungi originating from positive blood cultures in Guangdong, 2019-2021
PENG Ya-qin ; LIAO Kang ; WU Zhong-wen ; GUO Peng-hao
China Tropical Medicine 2023;23(3):277-
Abstract: Objective To investigate the species distribution and the antifungal susceptibility of fungi originating from positive blood cultures in Guangdong, so as to provide a basis for the rational use of antifungal drugs in clinical fungal bloodstream infections. Methods All data were collected for retrospective study from monitoring units of the Guangdong Fungal Disease Surveillance Network between 2019-2021, including clinical characteristics, species distribution and antifungal susceptibility. Results A total of 3 589 fungi strains were isolated, most of which were Candida spp. (86.5%, 3 105/3 589). The most common species was Candida albicans (36.6%, 1 315/3 589), followed by Candida tropicalis (17.4%, 1 626/3 589) and Candida parapsilosis (14.5%, 520/3 589). There were 42.1%(1 512/3 589) of strains isolated from ICU. The proportions of Candida albicans strains were 40.0%-50.0% among ICU, general surgery, organ transplantation and emergency department. Candida tropicalis (60.0%, 144/240) was the most common species in hematology department. Both Cryptococcus neoformans (35.4%, 69/195) and Talaromyces marneffei (35.9%,70/195) were common in infection department. All of the Candida isolates were of wild-type (WT) phenotype to amphotericin B. Resistance rates of caspofungin and micafungin for Candida spp. ranged from 0.0% to 4.2%. The resistance rates of Candida tropicalis to fluconazole and voriconazole were 42.3% and 38.9%, which were significantly higher than other common Candida spp. The cryptococcus neoformans strains were totally of WT phenotype to fluconazole and voriconazole. Conclusions Candida albicans is the most common species originating from positive blood cultures in Guangdong Province. Common Candida strains are highly sensitive to echinocandins and amphotericin B. Candida tropicalis has a high resistance rate to triazole drugs.
4.Therapeutic Observation of HE’s Needling Method for Mild Simple Obesity Due to Dampness From Spleen Deficiency
Fan ZHANG ; Guiling WANG ; Jie ZHOU ; Xincai XIE ; Huilin LIU ; Jing GUO ; Peng WANG ; Yali WEN ; Peng CHEN ; Jingang WANG
Shanghai Journal of Acupuncture and Moxibustion 2016;35(7):765-767
Objective To observe the clinical efficacy of HE’s needling method (three ways for unblocking) in treating mild simple obesity due to dampness from spleen deficiency.Method Forty eligible subjects with mild simple obesity due to dampness from spleen deficiency were randomized into group A and group B, 20 cases in each group. Group A was intervened by mild unblocking method plus intensive unblocking method from HE’s needling method, and group B was by mild unblocking method plus warm unblocking method. The obesity-related indexes were observed before and after treatment, and the clinical efficacies were compared.Result The body weight and Body Mass Index (BMI) were significantly changed after intervention in the treatment group (P<0.05). The body weight was significantly changed after treatment in the control group (P<0.05). After treatment, there were no significant differences in comparing the obesity-related indexes (body weight, BMI, waist circumference, hip circumference, and waist-hip ratio) between the two groups (P>0.05). The total effective rate was 55.0% in the treatment group versus 10.0% in the control group, and the difference was statistically significant (P<0.01).Conclusion HE’s needling method is effective in treating mild simple obesity due to dampness from spleen deficiency, and mild unblocking method plus intensive unblocking method can produce a more significant efficacy compared to mild unblocking method plus warm unblocking method.
5.Value of cerebrospinal fluid leukocyte aggregation score in distinguishing the causes of meningitis.
Rui-mei HU ; Ruo-peng SUN ; Shu-hua GUO ; Bao-min LI ; Ji-wen WANG
Chinese Journal of Pediatrics 2003;41(6):463-465
Adolescent
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C-Reactive Protein
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metabolism
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Cell Aggregation
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Child
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Child, Preschool
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Cytodiagnosis
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methods
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Female
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Humans
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Infant
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Leukocytes
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cytology
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Male
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Meningitis, Bacterial
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blood
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cerebrospinal fluid
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diagnosis
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Meningitis, Viral
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blood
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cerebrospinal fluid
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diagnosis
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Sensitivity and Specificity
6.Common complications due to CT-guided transthoracic aspiration biopsy and the comprehension of puncture
Guo-Dong LI ; Zheng-Rong ZHOU ; Wen-Tao LI ; Wei-Jun PENG ;
Journal of Interventional Radiology 2006;0(12):-
Objective To analyze the complications due to CT-guided transthoracic aspiration biopsy for pulmonary lesions and discuss the role of puncture skill for reducing the complications.Methods CT- guided transthoracic aspiration biopsy was performed in 116 patients with intrapulmonary parenchymal occupied lesions from June 2006 to June 2007 in our hospital.The complications and the whole process of puncture were analyzed to obtain the experience for reducing the occurrence of complications.Results CT-guided transthoracic aspiration biopsy was succeeded in all 116 cases.The major complications included pneumothorax (15.51%),puncture tract hemorrhage(10.34%),hemoptysis(4.31%)and others(1.72%).Only 1 case of pneumothorax was treated by closed thoracic drainage and no specific treatment for others.Conclusion CT- guided transthoracic aspiration biopsy for pulmonary lesions is an efficient and safe diagnostic modality.The criteria for reducing the complications are associated with accurate localization,the correct breath training and evaluation of lesion before the operation.(J Intervent Radiol,2007,16:847-849)
7.Application on small incision extracapsular cataract extraction in large - scale vision recovery action in Shaanxi Province
Juan, ZHANG ; Wen-Jun, ZHAO ; Yong-Kang, ZHANG ; Yi, GUO ; Jing, LI ; Yang-Sheng, PENG
International Eye Science 2014;(9):1659-1662
To investigate the characteristics of scale cataract operations and the effects and experiences of small incision extracapsular cataract extraction with intraocular lens ( lOL) implantation in large - scale vision recovery action.
●METHODS: Four thousand eight hundred ninety - two cases ( 4892 eyes ) of cataract were treated by small incision non-phacoemulcification cataract extraction from March 2010 to November 2011 in our hospital ( Fuming No. 1 surgery car of Shaanxi Province ) which were retrospectively analyzed. Visual acuity, intraoperative and postoperative complications, the recovery of postoperative inflammation were observed.
●RESULTS: Visual acuity reached 0. 3 or more in 4521 eyes (92. 42%) at 1d after the operation, at 3d after the operation in 4571 eyes (93. 44%), there were 4887 eyes with lOL implantation, implantation rate was 99. 90%. All the cases had lesser intraoperative and postoperative complications, and the postoperative inflammation recovered quickly.
●CONCLUSlON: Small incision extracapsular cataract extraction with lOL implantation is simple, effective, economical, safe and adapting for large - scale vision recovery action.
8.Role of ELMO1 in invasion and migration of gastric cancer cells
Chengming GUO ; Huiyun PENG ; Dian GAO ; Yan HU ; Qiongfang YU ; Wen LUO
Chinese Journal of Pathophysiology 2017;33(5):782-787
AIM:To reveal the role and function of engulfment and cell mobility 1 (ELMO1) in the invasion and migration of gastric cancer cells.METHODS:The expression of ELMO1 at protein and mRNA levels was detected in 5 kinds of gastric cancer cells and 1 normal human gastric epithelial cells by Western blot and real-time PCR, and the gastric cancer cells with the highest expression of ELMO1 were screened out.The cell transfection experiment was used to silence ELMO1 expression in the gastric cancer cells, and the effect of ELMO1 silencing on the invasion and migration of the gastric cancer cells was detected by Transwell assay.RESULTS:The expression level of ELMO1 in the gastric cancer cells was significantly higher than that in human normal gastric epithelial cells (P<0.01), and the SGC7901 cells had the highest expression level of ELMO1.ELMO1-siRNA significantly silenced the expression of ELMO1 in the SGC7901 cells (P<0.01).Silencing of ELMO1 expression significantly reduced the invasion and migration abilities of the human gastric can-cer cells (P<0.01).CONCLUSION:ELMO1 is highly expressed in the gastric cancer cells, and promotes the invasion and migration abilities of the gastric cancer cells.ELMO1 may become an effective target for the treatment of invasion and metastasis of gastric cancer.
9.Study on correlation between OCT for detecting characteristics of coronary artery plaque and matrix metalloproteinase
Huang SUN ; Hongbo YANG ; Jiahua PAN ; Yunzhu PENG ; Ruijie LI ; Wen YU ; Zhaohui MENG ; Tao GUO
Chongqing Medicine 2017;46(17):2309-2312
Objective To apply the optical coherence tomography(OCT) to detect the characteristics of coronary artery plaque and to investigate its correlation with levels of serum matrix metalloproteinase 7(MMP 7),MMP9 and MMP12.Methods The patients undergoing coronary arterial angiography for diagnosing coronary arterial lesions in the cardiology department of our hospital from October 2014 to March 2016 were collected and included into the research subjects.The subjects were divided into the stable plaque group and unstable plaque group based on the results of OCT scanning.The neovascularization characteristics such as the fibrous cap thickness of plaque,angle of lipid pool,macrophage infiltration and plaque cracks were detected by using OCT.ELISA was used to measure serum MMP7,MMP9 and MMP12 levels.Results (1) The fibrous cap thickness in the stable plaque group was more than that in the unstable plaque group(P<0.01);the lipid pool angle,microphage infiltration,intima erosion and plaque cracks in the unstable plaque group were more than those in the stable plaque group(P<0.05).(2) The MMP7 and MMP9 levels in the unstable plaque group were higher than those in the stable plaque group and control group(P<0.05).(3) The fibrous cap thickness had significantly negative correlation with serum MMP9 level(r=-0.336,P=0.034);the MMP7 and MMP9 levels in the microphage infiltration group were higher than those in the non-microphage infiltration group(P<0.05);the MMP9 level in the intima erosion group was higher than that in the non-intima erosion group(P<0.01).Conclusion OCT can detect and find unstable plaque and the serum levels of MMP7 and MMP9 are significantly elevated in the patients with unstable plaque,which can be used as an important basis for predicting unstable plaque and guiding the treatment decisions.
10.Meta analysis of etiology and clinical features of recurrent acute pancreatitis in China in recent decade
Yingjie GUO ; Wen SONG ; Xiaoyu LI ; Xue JING ; Xueli DING ; Peng ZHANG ; Zibin TIAN
Chinese Journal of Pancreatology 2017;17(4):231-237
Objective To summarize the etiology and clinical features of recurrent acute pancreatitis (RAP) in the recent l0 years in China.Methods Pubmed,Medline,EMbase,CNKI,Wan fang and VIP database were searched for relevant articles published from January 2001 to December 2016 using Pancreatitis,Recurrence and Etiology as term index words.Meta analysis was conducted by RevManS.3 software.Results A total of 16 studies involving 3 980 patients (RAP n =1 231,AP n =2 749) were included.The age and sex were not correlated with AP recurrence.Biliary diseases,alcohol,inappropriate diets were associated with AP recurrence,but these were not the factors influencing RAP.Hyperlipidemia was responsible for the occurrence of pancreatitis in 17.00% of RAP and 10.20% of AP,with statistically significant difference (P =0.002).Hyperlipidemia was an important risk factor influencing AP relapse.The percentage of SAP in AP and RAP patients was 16.83% and 24.13%,respectively,and the complication rate was 11.43% and 15.13%,and the percentage of jaundice was 28.20% and 32.53%.Those in RAP were higher than those in AP,and the differences were statistically significant (all P < 0.05).Conclusions Hyperlipidemia was the predominant risk factor for RAP in China,and the patients with RAP tend to progress into SAP,and have jaundice and complications.