1.Distribution of bacteria infected by metagenomic sequencing technology in maxillofacial space.
Yi-Heng CHEN ; Hong-Yu ZHENG ; Zi-Xuan LI ; Yong-Chao WU ; Zhi-Xing NIU ; Yan-Hui PENG ; Jun-Fang ZHAO ; Qiang SUN
West China Journal of Stomatology 2021;39(4):475-481
		                        		
		                        			OBJECTIVES:
		                        			This study aimed to compare and analyze the consistency and difference between metageno-mic next-generation sequencing (mNGS) and conventional bacterial culture in the detection of pathogenic microorganisms in maxillofacial space infection, as well as to provide a new detection method for the early clinical identification of pathogenic bacteria in maxillofacial space infection.
		                        		
		                        			METHODS:
		                        			The clinical data of 16 patients with oral and maxillofacial space infections in the First Affiliated Hospital of Zhengzhou University from March 2020 to June 2020 were collected. mNGS and conventional bacterial culture methods were used to detect pus. We then analyzed and compared the test results of the two methods, including the test cycle, positive detection rate, anaerobic bacteria, facultative anaerobes and aerobic bacteria detection rates, distribution of pathogenic bacteria, relative species abundance, and resistance genes.
		                        		
		                        			RESULTS:
		                        			The average inspection period of mNGS was (18.81±3.73) h, and the average inspection period of bacterial culture was (83.25±11.64) h, the former was shorter than the latter (
		                        		
		                        			CONCLUSIONS
		                        			Compared with conventional bacterial culture, mNGS has the characteristics of short test time, high sensitivity, and high accuracy. Thus, it is a new detection method for the early identification of pathogenic bacteria in maxillofacial space infection and is beneficial to the early clinical diagnosis and treatment of the disease.
		                        		
		                        		
		                        		
		                        			Bacteria/genetics*
		                        			;
		                        		
		                        			High-Throughput Nucleotide Sequencing
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Metagenomics
		                        			;
		                        		
		                        			Sensitivity and Specificity
		                        			;
		                        		
		                        			Technology
		                        			
		                        		
		                        	
2.Pegylated Liposomal Doxorubicin Combined with Cisplatin for Advanced Osteosarcoma: A Single-dose Dose-escalating Trial
Xi-zhi WEN ; Qiu-zhong PAN ; De-sheng WENG ; Jing-jing ZHAO ; Hai-rong XU ; Zhen HUANG ; Xiao-hui NIU ; Xing ZHANG
Journal of Sun Yat-sen University(Medical Sciences) 2020;41(4):582-588
		                        		
		                        			
		                        			【Objective】 To explore the maximum tolerated dose(MTD) of pegylated liposome doxorubicin(PLD) when combined with cisplatin as a modified regimen for osteosarcoma. 【Methods】 A total of 14 patients with pathologically confirmed metastatic or unresectable osteosarcoma received one cycle of PLD combined with cisplatin therapy. The study used a traditional 3+3 design, with three PLD dose levels(40, 50, and 60 mg/ m2, day 1). It was designed to recruit three patients initially at each dose level. Cisplatin was given at a dose of 100 mg/m2(administered within four days) for each patients. Patients received prophylactic granulocyte stimulating factor therapy 48 h after chemotherapy. Toxicities were documented according to the the National Cancer Institute Common Terminology Criteria for Adverse Events, version 4.0(NCI CTCAE v4.0) . 【Results】 Of the 14 patients, 9 were male and 5 female, with a median age of 20 years(range 14~43). Both of the patients at dose level of 60 mg/m2 experienced dose-limiting toxicity(DLT) (grade 3 oral mucositis and grade 4 neutropenic fever). Only 1 of the 9 patients at dose level of 50 mg/m2 experienced DLT(grade 4 thrombocytopenia lasting for more than 3 days) and thus the MTD was 50 mg/m2. Most common grade 3~4 adverse events across all cohorts included neutropenia(12 cases, 12/14), thrombocytopenia(7 cases, 7/14), anemia(4 cases, 4/14) and oral mucositis(2 cases, 2/14). All the adverse events were relieved after symptomatic and supportive treatment. No treatment-related death was observed. 【Conclusions】 For advanced osteosarcoma, when combined with cisplatin, the MTD of PLD was 50 mg/m2. The main DLT was oral mucositis and neutropenic fever. The adverse events can be relieved after symptomatic treatment.
		                        		
		                        		
		                        		
		                        	
3.Based on PI3K/Akt/mTOR Signaling Pathway to Explore Mechanism of Zhigancao Tang Against MIRI-induced Ventricular Tachycardia and Ventricular Fibrillation in Rats
Xu-ying ZHENG ; Chun-jie MA ; Yong-zhen CHEN ; Cun-xia REN ; Ren-xiu NIU ; Hua LIAN ; Kun CHEN ; Xiao-hui TAN ; Qing-zhi YAN ; Xing ZHANG ; Hao WU
Chinese Journal of Experimental Traditional Medical Formulae 2020;26(17):1-8
		                        		
		                        			
		                        			Objective:Through phosphatidylinositol 3-kinase(PI3K)/protein kinase B (Akt)/mammalian rapamycin target protein (mTOR) signaling pathway, explore the effect of Zhigancao Tang on myocardial ischemia-reperfusion injury(MIRI)The role and mechanism of arrhythmia(ventricular tachycardia and ventricular fibrillation). Method:The 72 SD rats were randomly divided into sham operation group,model group, Zhigancao Tang low,medium and high dose group(11.43,22.86,45.72 g·kg-1),Wenxin granule group(2.43 g·kg-1),continuous drug intervention for 10 days. Two hours after the last administration,the MIRI model of rat was prepared by ligating the left anterior descending coronary artery,and the changes of electrocardiogram were recorded. After successful modeling,blood and heart tissue were collected to detect the content of creatine creatine(CK),lactate dehydrogenase(LDH)and aspartate aminotransferase(AST)in the serum, the enzyme-linked immunoassay(ELISA) method was used to detect cardiac troponin(CtnI)content, immunohistochemical detection of myocardial PI3K,Akt,mTOR expression. Western blot was used to detect the myocardial autophagy-related protein microtubule-associated protein 1 light chain 3(LC-3),autophagy markers Beclin1 and PI3K/Akt/mTOR signaling pathway related protein expression and phosphorylated p-PI3K,p-Akt,p-mTOR levels. Result:In model group, 100% of ventricular tachycardia and 91.67% of ventricular fibrillation occurred. Compared with sham operation group, the serum levels of CK,LDH,AST,and CtnI in the model group were significantly increased(
		                        		
		                        	
4.Clinical value of vacuum sealing drainage in the treatment of oral and maxillofacial space infection.
Chun-Mei LI ; Chen-Lu XIE ; Shuang HU ; Qiang SUN ; Guang-Hui LI ; Zhi-Xing NIU ; Ming-Lei SUN
West China Journal of Stomatology 2019;37(1):62-65
		                        		
		                        			OBJECTIVE:
		                        			This study aims to observe the efficacy of vacuum sealing drainage (VSD) by continuous negative pressure drainage and saline irrigation in the treatment of oral and maxillofacial space infection.
		                        		
		                        			METHODS:
		                        			Retrospective analysis was conducted on 116 cases of maxillofacial space infection, and clinical data were collected to compare the therapeutic effects of routine incision with drainage treatment (traditional treatment group, 58 cases) and VSD treatment (VSD group, 58 cases).
		                        		
		                        			RESULTS:
		                        			The length of hospital stay, white blood cell count, scar length, frequency of dressing change, and pain degree of patients in the VSD group were all lower than those in the traditional treatment group. Moreover, the improvement degree of mouth opening in the VSD groups was better than that in the traditional treatment group (P<0.05).
		                        		
		                        			CONCLUSIONS
		                        			VSD is a more effective method for the treatment of oral and maxillofacial space infection.
		                        		
		                        		
		                        		
		                        			Body Fluids
		                        			;
		                        		
		                        			Drainage
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Mouth Diseases
		                        			;
		                        		
		                        			therapy
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Surgical Wound Infection
		                        			;
		                        		
		                        			therapy
		                        			;
		                        		
		                        			Vacuum
		                        			
		                        		
		                        	
5.Chemotherapy followed by allo-hematopoietic stem cell transplantation for the treatment of blastic plasmacytoid dendritic cell neoplasm: two case reports and literatures review.
Shu Peng WEN ; Bo Yuan WANG ; Li Na XING ; Xin LU ; Feng Yun WANG ; Zhi Yong CHENG ; Li GENG ; Zhen Zhen WANG ; Zhi Yun NIU ; Ying WANG ; Fu Xu WANG ; Xue Jun ZHANG
Chinese Journal of Hematology 2019;40(10):874-877
6.Three-year Follow-up on the Safety and Effectiveness of Rituximab Plus Chemotherapy as First-Line Treatment of Diffuse Large B-Cell Lymphoma and Follicular Lymphoma in Real-World Clinical Settings in China: A Prospective, Multicenter, Noninterventional Study.
Jian-Qiu WU ; Yong-Ping SONG ; Li-Ping SU ; Ming-Zhi ZHANG ; Wei LI ; Yu HU ; Xiao-Hong ZHANG ; Yu-Huan GAO ; Zuo-Xing NIU ; Ru FENG ; Wei WANG ; Jie-Wen PENG ; Xiao-Lin LI ; Xue-Nong OUYANG ; Chang-Ping WU ; Wei-Jing ZHANG ; Yun ZENG ; Zhen XIAO ; Ying-Min LIANG ; Yong-Zhi ZHUANG ; Ji-Shi WANG ; Zi-Min SUN ; Hai BAI ; Tong-Jian CUI ; Ji-Feng FENG
Chinese Medical Journal 2018;131(15):1767-1775
		                        		
		                        			Background:
		                        			Prospective real-life data on the safety and effectiveness of rituximab in Chinese patients with diffuse large B-cell lymphoma (DLBCL) or follicular lymphoma (FL) are limited. This real-world study aimed to evaluate long-term safety and effectiveness outcomes of rituximab plus chemotherapy (R-chemo) as first-line treatment in Chinese patients with DLBCL or FL. Hepatitis B virus (HBV) reactivation management was also investigated.
		                        		
		                        			Methods:
		                        			A prospective, multicenter, single-arm, noninterventional study of previously untreated CD20-positive DLBCL or FL patients receiving first-line R-chemo treatment at 24 centers in China was conducted between January 17, 2011 and October 31, 2016. Enrolled patients underwent safety and effectiveness assessments after the last rituximab dose and were followed up for 3 years. Effectiveness endpoints included progression-free survival (PFS) and overall survival (OS). Safety endpoints were adverse events (AEs), serious AEs, drug-related AEs, and AEs of special interest. We also reported data on the incidence of HBV reactivation.
		                        		
		                        			Results:
		                        			In total, 283 previously untreated CD20-positive DLBCL and 31 FL patients from 24 centers were enrolled. Three-year PFS was 59% (95% confidence interval [CI]: 50-67%) for DLBCL patients and 46% (95% CI: 20-69%) for FL patients. For DLBCL patients, multivariate analyses showed that PFS was not associated with international prognostic index, tumor maximum diameter, HBV infection status, or number of rituximab treatment cycles, and OS was only associated with age >60 years (P < 0.05). R-chemo was well tolerated. The incidence of HBV reactivation in hepatitis B surface antigen (HBsAg)-positive and HBsAg-negative/hepatitis B core antibody-positive patients was 13% (3/24) and 4% (3/69), respectively.
		                        		
		                        			Conclusions:
		                        			R-chemo is effective and safe in real-world clinical practice as first-line treatment for DLBCL and FL in China, and that HBV reactivation during R-chemo is manageable with preventive measures and treatment.
		                        		
		                        			Trial Registration
		                        			ClinicalTrials.gov, NCT01340443; https://clinicaltrials.gov/ct2/show/NCT01340443.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Antineoplastic Combined Chemotherapy Protocols
		                        			;
		                        		
		                        			therapeutic use
		                        			;
		                        		
		                        			China
		                        			;
		                        		
		                        			Cyclophosphamide
		                        			;
		                        		
		                        			administration & dosage
		                        			;
		                        		
		                        			Doxorubicin
		                        			;
		                        		
		                        			administration & dosage
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Follow-Up Studies
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Lymphoma, Follicular
		                        			;
		                        		
		                        			drug therapy
		                        			;
		                        		
		                        			Lymphoma, Large B-Cell, Diffuse
		                        			;
		                        		
		                        			drug therapy
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Prospective Studies
		                        			;
		                        		
		                        			Rituximab
		                        			;
		                        		
		                        			therapeutic use
		                        			;
		                        		
		                        			Vincristine
		                        			;
		                        		
		                        			administration & dosage
		                        			
		                        		
		                        	
7.External Quality Analysis of Quality Indicators on Specimen Acceptability
Yuan-Yuan YE ; Wei WANG ; Hai-Jian ZHAO ; Feng-Feng KANG ; Wei-Xing LI ; Zhi-Ming LU ; Wei-Min ZOU ; Yu-Qi JIN ; Wen-Fang HUANG ; Bin XU ; Fa-Lin CHEN ; Qing-Tao WANG ; Hua NIU ; Bin-Guo MA ; Jian-Hong ZHAO ; Xiang-Yang ZHOU ; Zuo-Jun SHEN ; Wei-Ping ZHU ; Yue-Feng L(U) ; Liang-Jun LIU ; Lin ZHANG ; Li-Qiang WEI ; Xiao-Mei GUI ; Yan-Qiu HAN ; Jian XU ; Lian-Hua WEI ; Pu LIAO ; Xiang-Ren A ; Hua-Liang WANG ; Zhao-Xia ZHANG ; Hao-Yu WU ; Sheng-Miao FU ; Wen-Hua PU ; Lin PENG ; Zhi-Guo WANG
Journal of Modern Laboratory Medicine 2018;33(2):134-138,142
		                        		
		                        			
		                        			Objective To analyze the status of quality indicators(QI) on specimen acceptability and establish preliminary qual ity specification.Methods Web based External Quality Assessment system was used to collect data of laboratories partici pated in "Medical quality control indicators in clinical laboratory" from 2015 to 2017,including once in 2015 and 2017 and twice in 2016.Rate and sigma scales were used to evaluate incorrect sample type,incorrect sample container,incorrect fill level and anticoagulant sample clotted.The 25th percentile (P25) and 75th percentile (P75) of the distribution of each QI were employed to establish the high,medium and low specification.Results 5 346,7 593,5 950 and 6 874 laboratories sub mitted the survey results respectively.The P50 of biochemistry (except incorrect fill level),immunology and microbiology reach to 6σ.The P50 of clinical laboratory is 4 to 6σ except for incorrect sample container.There is no significant change of the continuous survey results.Based on results in 2017 to establish the quality specification,the P25 and P75 of the four QIs is 0 and 0.084 4 %,0 and 0.047 6 %,0 and 0.114 2 %,0 and 0.078 4 %,respectively.Conclusion According to the results of the survey,most laboratories had a faire performance in biochemistry,immunology and microbiology,and clinical laboratory needs to be strengthened.Laboratories should strengthen the laboratory information system construction to ensure the actual and reliable data collection,and make a long time monitoring to achieve a better quality.
		                        		
		                        		
		                        		
		                        	
8.Clinical efficacy analysis of transverse tibial bone transport combined with vacuum drainage for the treatment of diabetic foot ulcer.
Zhong-Wei JIA ; Jian-Ping YU ; Yun-Xing SU ; Xiu-Sheng GUO ; Jin-Bin YU ; Zhi-Jun YANG ; Jia-Wei NIU ; Jie WEI
China Journal of Orthopaedics and Traumatology 2018;31(3):232-236
OBJECTIVETo investigate clinical effect of transverse tibial bone transport micro vessels regeneration technology combined with vacuum drainage in treating diabetic foot ulcer.
METHODSFrom November 2015 and December 2016, clinical data of 19 diabetic foot ulcer patients treated with transverse tibial bone transport micro vessels regeneration technology combined with vacuum drainage were retrospective analyzed, including 15 males and 4 females aged from 42 to 82 years old with an average of (64.57±7.14) years old;the courses of diabetic ranged was (14.62±6.19) years;12 cases on the left side and 7 cases on the right side;the area of ulcer ranged from 2 cm×3 cm to 8 cm×6 cm. All patients were stage D according to Texas classification, 3 cases were grade 2, 10 cases were grade 3 and 6 cases were grade 4. Ankle-brachial index and Michigan Neuropathy Screening Instrument (MNSI) were used to evaluate recovery of peripheral vessel and nerve before and after operation, the result of angiography and vascular ultrasound were also compared after operation.
RESULTSSeventeen of 19 patients were followed up from 3 to 13 months with an average of 6.9 months. Seventeen patients' surface wound were healed. Ankle-brachial index was increased from (0.51±0.20) before operation to (0.93±0.18) at 3 months after operation, and had significant difference(=13.63, =0.000);MNSI was increased from (4.06±1.36) before operation to(5.76±1.44) at 3 months after operation, and differences were statistically significant (=7.31, =0.000). Postoperative angiography and vascular ultrasound showed satisfied regeneration of micro-vessel and affected foot achieved normal movement and daily life.
CONCLUSIONSTransverse tibial bone transport micro vessels regeneration technology could reconstruct micro-vessel under lower affected limb, promote recovery of peripheral vessel and nerve, while with vacuum drainage could promote wound healing, has advantages of simple operation, obvious clinical effect, and high success rate of limb-salvage, and is one of ideal treatment for diabetic foot ulcer.
Adult ; Aged ; Aged, 80 and over ; Angiography ; Ankle Brachial Index ; Diabetic Foot ; surgery ; Drainage ; Female ; Humans ; Male ; Middle Aged ; Regeneration ; Retrospective Studies ; Tibia ; blood supply ; Treatment Outcome ; Ultrasonography ; Vacuum
9.Relationship Between Plasma suPAR Level and Acute Coronary Syndrome With its Influencing Factors
lei Jing NIU ; Yu PENG ; Ming BAI ; yu Xing GAO ; li Hong MA ; liang Chen PAN ; zhi Ying JIANG ; Zheng ZHANG
Chinese Circulation Journal 2017;32(10):970-974
		                        		
		                        			
		                        			Objective: To explore the relationship between plasma level of soluble urokinase plasminogen activator receptor (suPAR) and the severity of acute coronary syndrome (ACS) with its influence factors. Methods: A total of 321 consecutive patients with chest pain admitted in our hospital from 2015-03 to 2016-09 were studied. According to clinical presentation, laboratory test and coronary angiography (CAG), the patients were divided into 2 groups: ACS group, n=228 and Control group, the patients with normal coronary artery, n=93. Plasma levels of suPAR and high sensitive C reaction protein (hs-CRP) were measured by ELISA and compared between 2 groups. Results: The levels of plasma suPAR in ACS patients were significantly higher than those in the control group (OR= 0.104, 95% CI: 0.048-0.223, P<0.01). In ACS group, the plasma suPAR level gradually increased with the increase of Gensini score, The sensitivity and specificity of the levels of suPAR were determined by ROC curve. The values of ACS were predicted to be 1.8 μg / L, the sensitivity was 0.732 and the specificity was 0.710. Multiple linear regression analysis showed that smoking, Gensini score and uric acid were the main factors affecting plasma suPAR levels. Conclusion: Elevated plasma suPAR level has been related to the severity of coronary stenosis in ACS patients, such relationship is superior to hs-CRP; suPAR might be worked as a new biomarker for predicting coronary stenosis and risk stratification in ACS patients.
		                        		
		                        		
		                        		
		                        	
10.BMMSC from blastic phase CML down-regulate leukemia cell apoptosis.
Ying WANG ; Yu-Xiang HAN ; Zhi-Yun NIU ; Xing-Zhe WANG ; Huan HUA ; Yin-Tao SHANG ; Fu-Xu WANG ; Xue-Jun ZHANG ; Jian-Min LUO
Journal of Experimental Hematology 2014;22(5):1402-1407
		                        		
		                        			
		                        			The purpose of this study was to investigate the effect of bone marrow mesenchymal stem cells (BMMSC) from patients with chronic myeloid leukemia (CML) in blastic phase (Bp) on K562 cells and the primary CML-Bp cells, and to explore its potential mechanisms. K562 cells and primary CML-Bp cells were co-cultured with BMMSC of different groups; the cell proliferation was detected by MTT method, the cell apoptosis rate and mitochondrial membrane potential were measured by flow cytometry, the expression levels of Caspase-8, Caspase-9, and activated Caspase-3 in cells were measured by Western blot. The results showed that the CML-Bp BMMSC could enhance the survival rate of K562 cells treated with adviamycin (ADM) and display protective effect on K562 cells and primary CML-Bp mononuctear cells, inhibited ADM-induced leukimia cell apoptosis (P < 0.05); as compared with CML-chronic phase (CML-Cp) BMMSC and normal BMMSC, the CML-Bp BMMSC showed the highest protective effect on leukemic cells, the mitochondrial membrane potential of co-cultured cells slightly droped (P < 0.05). In the CML-Bp BMMSC cultured with K562 cells, the expression level of caspase-3 was more down-regulated than that in K562 alone plus ADM group, while the expression of caspase-9 significantly increased (P < 0.05). It is concluded that the CML-Bp BMMSC down-regulates ADM-induced leukemia cell appoptosis, its mechanism may relate with the inhibition of mitochondrial membrane potential drop, the stabilization of unactive expression of caspase-9 and down-regulation of caspase-3 expression.
		                        		
		                        		
		                        		
		                        			Apoptosis
		                        			;
		                        		
		                        			Bone Marrow
		                        			;
		                        		
		                        			Caspase 3
		                        			;
		                        		
		                        			Caspase 8
		                        			;
		                        		
		                        			Caspase 9
		                        			;
		                        		
		                        			Cell Proliferation
		                        			;
		                        		
		                        			Cells, Cultured
		                        			;
		                        		
		                        			Down-Regulation
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Leukemia, Myelogenous, Chronic, BCR-ABL Positive
		                        			;
		                        		
		                        			pathology
		                        			;
		                        		
		                        			Mesenchymal Stromal Cells
		                        			;
		                        		
		                        			cytology
		                        			;
		                        		
		                        			metabolism
		                        			
		                        		
		                        	
            
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