1.The current research status of genetics of sporadic clear renal cell carcinoma
Jian-Zhong SHOU ; Jian-Hui MA ;
Cancer Research and Clinic 2001;0(04):-
The mechanism of the development of sporadic renal cell carcinomas is complicated,which is different from that of hereditary renal-cell carcinoma.Genetics abnormality such as loss of 3p,VHLgene mutations may help differentiate pathological subtype of renal cell carcinoma and some gene markers may be useful predictors for prognosis.The current status of genetic study in renal cell carcinomas is reviewed in this article.
2.Correlation between five RNA markers of rat's skin and PMI at different temperatures.
Hui PAN ; Heng ZHANG ; Ye-hui LÜ ; Jian-long MA ; Kai-jun MA ; Long CHEN
Journal of Forensic Medicine 2014;30(4):245-249
OBJECTIVE:
To explore the correlation between postmortem interval (PMI) and five RNA markers of rat's skin--β-actin, glyceraldehyde-3-phosphate dehydrogenase (GAPDH), 18S ribosomal RNA(18S rRNA), 5S ribosomal RNA (5S rRNA), and microRNA-203 (miR-203), at different temperatures.
METHODS:
Eighteen SD rats were randomly divided into three environmental temperature groups: 4 °C, 15 °C and 35 °C, respectively. Skin samples were taken at 11 time points from 0 h to 120 h post-mortem. The total RNA was extracted from the skin samples and the five RNA levels were detected by real-time fluorescent quantitative PCR. Proper internal reference was selected by geNorm software. Regression analysis of the RNA markers was conducted by GraphPad software.
RESULTS:
5S rRNA and miR-203 were most suitable internal references. A good linear relationship between PMI and RNA levels (β-actin and GAPDH) was observed in two groups (4 °C and 15 °C), whereas the S type curve relationship between the expression levels of the two markers (β-actin and GAPDH) and PMI was observed in the 35 °C group. The partial linear relationship between 18S rRNA and PMI was observed in the groups (15 °C and 35 °C).
CONCLUSION
Skin could be a suitable material for extracting RNA. The RNA expression levels of β-actin and GAPDH correlate well with PMI, and these RNA markers of skin tissue could be additional indice for the estimation of PMI.
Actins
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Animals
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Autopsy
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Glyceraldehyde-3-Phosphate Dehydrogenases/genetics*
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Postmortem Changes
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RNA
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RNA Stability
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RNA, Ribosomal, 18S
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Rats
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Real-Time Polymerase Chain Reaction
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Regression Analysis
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Skin
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Temperature
4.BIOLOGICAL CHARACTERIZATION OF FOWL INTESTINAL BACTERIOPHAGE
Hao LI ; Hui-Jun XIE ; Jian KONG ; Gui-Rong MA ;
Microbiology 1992;0(02):-
More than ten bacteriophage of E.coli were isolated from the soil and the dung of the fowl-run, then three of named bacteriophage A, C, D which lysis E.coli virulently were selected to investigate biological characterizations. The results showed that high activities were obtained after the phages incubated at 50℃ for 1 h or 60℃ for 30 min. The phages could be alive at the range of pH from 4 to 12, Ca 2+ or Mg 2+ added to the medium could stimulate the lysis of phages. However, the formation of the plaque could be inhibited obviously by adding sodium citrate to the medium.
5.PET/CT findings of Langerhans cell histiocytosis in children
Jian ZHANG ; Suyun CHEN ; Hongliang FU ; Chao MA ; Hui WANG
Chinese Journal of Nuclear Medicine and Molecular Imaging 2016;36(4):300-303
Objective To summarize the 18F-FDG PET/CT findings of LCH in children,and explore its value in the diagnosis of LCH.Methods PET/CT imaging and clinical data of 13 patients (6 males,7 females;average age (3.0±2.3) years) with LCH confirmed by histology before treatment from August 2011 to December 2015 in Xin Hua Hospital were retrospectively analyzed.Results All 13 patients have different degrees of bone destruction with increased metabolism,the common lesion sites were craniofacial bone,spine,limb long bones,ribs/chest/shoulder blade and pelvic bone.Lymph node lesions which manifested lymph node enlargement with increased metabolism were found in 10 cases,and the SUVmax was 4.0±1.3.Diffuse FDG uptake in spleen was found in 10 cases.There were 4 cases with liver lesions,3 with lung lesions,1 with high metabolic nodules in muscle,1 with orbital lesions and 1 with intraspinal high metabolic nodules.Conclusion 18F-FDG PET/CT could display the distribution and activity of LCH,and plays an important role in the diagnosis and systemic evaluation of LCH.
6.The application of anchor nail combined with Krackow suture technique in the treatment of flesh achilles tendon rupture
Jian NA ; Yong XU ; Chao MA ; Hui WANG ; Sitong QIN ; Keyong MA
Chinese Journal of Postgraduates of Medicine 2011;34(35):29-31
Objective To explore and evaluate the advantages of anchor nail in the treatment of achilles tendon rupture.Methods The clinical data of 27 patients with fresh achilles tendon rupture who received the treatment of thread anchor nail from January 2007 to August 2010 was retrospectively analyzed.Among them,14 patients received Krackow method,7 patients received Lindholm method to repair achilles tendon,6 patients received anchor nail combined with Krackow suture technique repair of achilles tendon.Arner-Lindholm clinical evaluation criterion was used for objective evaluation.Results Twenty-seven patients got 1-36 ( 17.35 ± 5.70) months follow-up.According to the corresponding standard in the 14 cases using Krackow method,8 cases were excellent,2 cases were good,4 cases were bad,the excellent and good rate was 71.4%( 10/14);in the 7 cases using Lindholm method,5 cases were excellent,1 case was good,1 case was bad,the excellent and good rate was 85.7 (6/7) ; all of the 6 cases using anchor nail combined with Krackow suture technique repair of achilles tendon were excellent,the excellent and good rate was 100.0%(6/6).Postoperative incisions were primarily healing,joint range of motion were all right,without rigidity,gait were almost normal,without the secondary fracture of ligament.Conclusion Anchor nail combined with Krackow suture technique in the treatment of achilles tendon rupture has significant effect,it is worth to be popularized because of its preonunced effect.
7.Do transportation subsidies and living allowances improve tuberculosis control outcomes among internal migrants in urban Shanghai, China?
Lu Hui ; Yan Fei ; Wang Wei ; Wu Laiwa ; Ma Weiping ; Chen Jing ; Shen Xin ; Mei Jian
Western Pacific Surveillance and Response 2013;4(1):19-24
Introduction: Tuberculosis (TB) in internal migrants is one of three threats for TB control in China. To address this threat, a project was launched in eight of the 19 districts of Shanghai in 2007 to provide transportation subsidies and living allowances for all migrant TB cases. This study aims to determine if this project contributed to improved TB control outcomes among migrants in urban Shanghai.
Methods: This was a community intervention study. The data were derived from the TB Management Information System in three project districts and three non-project districts in Shanghai between 2006 and 2010. The impact of the project was estimated in a difference-in–difference (DID) analysis framework, and a multivariable binary logistic regression analysis.
Results: A total of 1872 pulmonary TB (PTB) cases in internal migrants were included in the study. The treatment success rate (TSR) for migrant smear-positive cases in project districts increased from 59.9% in 2006 to 87.6% in 2010 (P < 0.001). The crude DID improvement of TSR was 18.9%. There was an increased probability of TSR in the project group before and after the project intervention period (coefficient = 1.156, odds ratio = 3.178, 95% confidence interval: 1.305–7.736, P = 0.011).
Conclusion: The study showed the project could improve treatment success in migrant PTB cases. This was a short-term programme using special financial subsidies for all migrant PTB cases. It is recommended that project funds be continuously invested by governments with particular focus on the more vulnerable PTB cases among migrants.
8.Value of 18F-FDG PET/CT SUVmax for preoperative assessment of primary tumor infiltration and metastases in patients with endometrial cancer
Fengxian ZHANG ; Jian ZHANG ; Suyun CHEN ; Chao LI ; Hui WANG ; Chao MA ; Hongliang FU
Chinese Journal of Nuclear Medicine and Molecular Imaging 2017;37(2):75-80
Objective To evaluate the clinical value of 18F-FDG PET/CT in preoperative assessment for endometrial cancer.Methods A retrospective study was performed in 51 patients (average age (59± 12) years) with confirmed or suspicious diagnosis of endometrial cancer from February 2013 to December 2015.Thirty-three patients underwent curettage surgery at least 1 week before PET/CT imaging.With SUVmax as the statistical variable,comparison was made between the pathologically confirmed benign and malignant groups,and in case of the latter,the extent of infiltration,histologic grade and subtype of primary tumor,lymph node and distant metastases were also analyzed.Two-sample t test was used to analyze the data,and diagnostic efficacy of PET/CT for metastasis was calculated.Results There were 43 patients with endometrial cancer and 8 patients with benign uterine tumor.SUVmax was found to significantly correlate with histopathology classification (benign:3.4 ± 1.2,malignant:12.8 ± 6.5) and depth of myometrial invasion (≥1/2:17.7±5.4,<1/2:10.9±5.9;t=-8.7 and 3.2,both P<0.05),but not with cervical stromal invasion,histologic grade or histologic subtype(t =1.8,-1.9,1.5,all P>0.05).The sensitivity,specificity,accuracy,positive predictive value (PPV) and negative predictive value (NPV) of PET/CT for the detection of lymph node metastases on a lesion basis were 85.7% (18/21),98.2% (271/276),97.3% (289/ 297),78.3%(18/23),98.9% (271/274),respectively,and on a patient basis were 6/6,97.3% (36/ 37),97.7% (42/43),6/7,100% (36/36),respectively.The sensitivity and PPV of PET/CT for the detection of other metastases on a lesion basis were both 11/12.Conclusion SUVmax could be a clinically valuable tool for preoperative evaluation of the presence of deep myometrial invasion,lymph node metastases and other metastases in patients with endometrial cancer,particularly in specificity and NPV.
9.Distribution and susceptibility of pathogens isolated from postoperative infections in liver transplantation recipients
Xiao-Jing GUO ; Hong FAN ; Xiao-Bo MA ; Mei KANG ; Jun JIAN ; Hui-Li CHEN ;
Chinese Journal of Infection and Chemotherapy 2006;0(04):-
Objective To investigate the epidemiology of bacterial infections after liver transplantation and anaIyze the antimi- crobial susceptibility of major pathogens to provide reference for clinical therapy.Methods A retrospective survey was conduc ted in 174 patients who underwent liver transplantation during 2001 and 2004.Identification and susceptibility of pathogens were assayed by Microscan Walkaway 40 Automatic System.Results Infection was identified in 59.8% of the 174 patients after liver transplantation.A total of 218 non-duplicate strains were isolated.Most infections were caused by single pathogen.The infection was frequently identified in respiratory tract,biliary tract,blood stream or intra-abdominal cavity.The top 5 patho- gens were Acinetobacter baumannii,Staphylococcus aureus,Pseudomonas aeruginosa,Stenotrophomonas maltophilia and Escherichia coli.Gram-negative bacilli were usually resistant to multiple antimicrobial agents,but less resistant to piperacillin- tazobactam or imipenem.Most of S.aureus isolates were methicillin-resistant,which were susceptible to vancomyein.Conclu- sions Pathogens of postoperative infections in liver transplantation recipients are mostly multi-drug resistant.The microbiologi- cal surveillance is important for guiding clinical therapy.
10.MRI findings of juvenile acute pure cartilage fracture of the knee joint
Ying-Cai SUN ; Jian-Ling CUI ; Ying-Ze ZHANG ; Xiao-Hui MA ; Shi-Ling LI ;
Chinese Journal of Radiology 2000;0(12):-
Objective To study the MRI manitestation of juvemle acute pure cartilage fracture of the knee joint.Methods The MRI changes of cartilage,subcartilage low signal line and subcartilage bone were analysed retrospectively in 26 juvenile patients with acute pure cartilage fracture confirmed by arthroscopy.Sagittal and coronal MRI scanning were performed in 26 patients.Using fast low angle shot fat saturation T_1-weighted image(FLASH-FS-T_1WI)sequences,spin echo T_1-weighted image(SE-T_1WI)and fast imaging with steady-state precession three dimensional fat saturation T_2-weighted image(FISP-3D-FS- T_2WI)sequences in sagittal plane,SE-T_1WI and multi echo data image combination T_2-weighted imaging (MEDIC or ME-T_2WI)in coronal plane.Using ME-T_2WI sequence,axial plane MRI scanning in 5 patients.Results Twenty-seven sites of 26 patients include 8 patella,7 femoral medial condyle, 11 femoral lateral condyle and 1 tibial plateau.Three types pure cartilage fracture were observed,totally defect of the cartilage in 7 sites(include 3 patella,2 femoral medial condyle,1 femoral lateral condyle and 1 tibial plateau),fissuring fracture in 3 sites(include 2 femoral medial and 1 femoral lateral condyles), superficial defect of the cartilage in 17 sites(include 5 patella,3 femoral medial and 9 femoral lateral condyle).Corpus liberum was found in 21 patients'knee joints by arthroscopy,but only 3 cases by MRI. Bone bruise was detected,and subcartilage low signal lines were normal.Conclusion Using FLASH-FS- T_1WI,SE-T_1WI,FISP-3D-FS-T_2WI and ME-T_2WI sequences,sagittal and coronal MRI scanning in femoral and tibial plateau pure cartilage fractures,and using ME-T_2WI sequence axial scanning in patella r cartilage fractures may show the position,extension and types of the acute pure cartilage fracture of the knee joint. MRI is the hest non-invasive method for studying cartilage fracture.