1.Effects of continuous blood purification on mitochondrial function of mononuclear cells and prognosis of patients with traumatic sepsis
Zhixin LI ; Tie LYU ; Liezhou JIN ; Lyujian CHEN ; Xiaolong XI ; Lijun YING
Chinese Journal of Trauma 2024;40(11):1008-1015
		                        		
		                        			
		                        			Objective:To investigate the effects of continuous blood purification (CBP) on mitochondrial function of peripheral blood mononuclear cells and clinical prognosis of patients with traumatic sepsis.Methods:A prospective cohort study was used to analyze the clinical data of 90 patients with traumatic sepsis admitted to the Intensive Care Unit of Shaoxing People′s Hospital from January 2023 to June 2024. Based on standard operating procedures (SOP), patients were divided into CBP group and non-CBP group according to whether they received CBP treatment. The mitochondrial DNA (mtDNA) copy number, activity of mitochondrial respiratory chain complex V, levels of tumor necrosis factor-α (TNF-α), interleukin (IL)-6 and IL-10 in the mononuclear cells on ICU admission and at 12, 24 and 48 hours after treatment were compared between the two groups. Acute physiology and chronic health evaluation II (APACHE II) score and sequential organ failure assessment (SOFA) score on ICU admission and at 48 hours after treatment were detected in the two groups. The length of ICU stay, total length of hospital stay and 28-day mortality after ICU admission were compared between the two groups.Results:A total of 90 patients with traumatic sepsis were included, comprising 56 males and 34 females, aged 18-82 years [51.3(38.7, 70.6)years], with injury severity score (ISS) of 16-54 points [36.2(17.0, 53.6)points]. There were 52 patients in the CBP group and 38 in the non-CBP group. All the patients were followed up for 7-14 days [10.0(8.0, 12.0)days]. On ICU admission, the mtDNA copy number was 638.5±124.0 in the CBP group and 634.7±122.1 in the non-CBP group ( P>0.05). At 12, 24 and 48 hours after treatment, the mtDNA copy number in the CBP group was 564.2±105.6, 415.7±83.5 and 303.7±77.0 respectively, significantly lower than 622.9±120.2, 581.5±113.6, 530.7±97.8 in the non-CBP group ( P<0.05 or 0.01). At 12, 24 and 48 hours after treatment, the mtDNA copy number in both groups continued to decrease compared with that on ICU admission ( P<0.05). On ICU admission, the activity of mitochondrial respiratory chain complex Ⅴ was (74.0±26.0)pg/ml in the CBP group and (72.8±25.3)pg/ml in the non-CBP group ( P>0.05); at 12, 24 and 48 hours after treatment, it was (69.4±24.2)pg/ml, (78.3±26.8)pg/ml and (91.5±33.5)pg/ml respectively in the CBP group, significantly higher than (65.3±23.6)pg/ml, (60.7±19.4)pg/ml and (53.8±16.9)pg/ml in the non-CBP group ( P<0.05 or 0.01); at 12 hours after treatment, it was decreased in both groups compared with that on ICU admission ( P<0.05); at 24 and 48 hours after treatment, it was gradually increased in the CBP group compared with those on ICU admission and at 12 hours after treatment ( P<0.05), while in the non-CBP group, it continued to decrease ( P<0.05). The levels of TNF-α, IL-6 and IL-10 on ICU admission were (51.6±17.1)pg/ml, (174.1±57.3)pg/ml and (67.6±16.2)pg/ml respectively in the CBP group and (49.5±16.7)pg/ml, (177.8±58.7)pg/ml and (65.7±16.6)pg/ml respectively in the non-CBP group ( P>0.05). At 12, 24 and 48 hours after treatment, the levels of TNF-α in the CBP group were (43.6±15.6)pg/ml, (29.4±12.5)pg/ml and (26.2±10.6)pg/ml respectively, the IL-6 levels were (122.4±41.7)pg/ml, (90.6±33.1)pg/ml, (75.6±24.7)pg/ml respectively and the IL-10 levels were (72.6±18.1)pg/ml, (80.7±20.6)pg/ml, (86.2±22.9)pg/ml respectively, which were significantly lower than (48.8±16.2)pg/ml, (46.5±15.5)pg/ml, (40.0±14.2)pg/ml at 12 hours after treatment, (168.4±51.6)pg/ml, (131.5±42.7)pg/ml, (112.7±35.8)pg/ml at 24 hours after treatment, and (78.6±19.3)pg/ml, (91.1±23.8)pg/ml, (99.4±26.6)pg/ml at 48 hours after treatment in the non-CBP group ( P<0.05 or 0.01). At 12, 24 and 48 hours after treatment, the levels of TNF-α and IL-6 in both groups continued to decrease, while the levels of IL-10 continued to increase compared with those on ICU admission ( P<0.05). On ICU admission, the APACHE Ⅱ and SOFA scores were (20.6±10.5)points and (6.2±1.9)points in the CBP group and (21.2±11.2)points and (6.7±2.1)points in the non-CBP group ( P>0.05). At 48 hours after treatment, the APACHE Ⅱ and SOFA scores were (13.5±6.6)points and (2.7±0.6)points in the CBP group, which were significantly lower than (18.3±9.3)points and (5.3±1.5)points in the non-CBP group ( P<0.01). At 48 hours after treatment, the APACHE II and SOFA scores in both groups were significantly decreased compared with those on ICU admission ( P<0.05 or 0.01). The length of ICU stay, total length of hospital stay and 28-day mortality after ICU admission were (13.0±5.7)days, (20.4±8.6)days and 19.2% (10/52) respectively, which were significantly shorter and smaller than (17.6±6.6)days, (26.5±9.4)days and 31.6% (12/38) in the non-CBP group ( P<0.05 or 0.01). Conclusions:CBP treatment may reduce the release of mtDNA by alleviating the mitochondrial damage of the mononuclear cells in patients with traumatic sepsis so that the release of inflammatory factors and cellular apoptosis is reduced, and improve the state of cell energy metabolism and cellular immune function by increasing the activity of mitochondrial respiratory chain complex V in the mononuclear cells, and participate in the reconstruction of immune homeostasis of the body so the inflammatory state and clinical prognosis of the patients are improved.
		                        		
		                        		
		                        		
		                        	
2.Risk factors for neonatal asphyxia and establishment of a nomogram model for predicting neonatal asphyxia in Hubei Enshi Tujia and Miao Autonomous Prefecture: a multicenter study.
Fang JIN ; Yu CHEN ; Yi-Xun LIU ; Su-Ying WU ; Chao-Ce FANG ; Yong-Fang ZHANG ; Lu ZHENG ; Li-Fang ZHANG ; Xiao-Dong SONG ; Hong XIA ; Er-Ming CHEN ; Xiao-Qin RAO ; Guang-Quan CHEN ; Qiong YI ; Yan HU ; Lang JIANG ; Jing LI ; Qing-Wei PANG ; Chong YOU ; Bi-Xia CHENG ; Zhang-Hua TAN ; Ya-Juan TAN ; Ding ZHANG ; Tie-Sheng YU ; Jian RAO ; Yi-Dan LIANG ; Shi-Wen XIA
Chinese Journal of Contemporary Pediatrics 2023;25(7):697-704
		                        		
		                        			OBJECTIVES:
		                        			To investigate the risk factors for neonatal asphyxia in Hubei Enshi Tujia and Miao Autonomous Prefecture and establish a nomogram model for predicting the risk of neonatal asphyxia.
		                        		
		                        			METHODS:
		                        			A retrospective study was conducted with 613 cases of neonatal asphyxia treated in 20 cooperative hospitals in Enshi Tujia and Miao Autonomous Prefecture from January to December 2019 as the asphyxia group, and 988 randomly selected non-asphyxia neonates born and admitted to the neonatology department of these hospitals during the same period as the control group. Univariate and multivariate analyses were used to identify risk factors for neonatal asphyxia. R software (4.2.2) was used to establish a nomogram model. Receiver operator characteristic curve, calibration curve, and decision curve analysis were used to assess the discrimination, calibration, and clinical usefulness of the model for predicting the risk of neonatal asphyxia, respectively.
		                        		
		                        			RESULTS:
		                        			Multivariate logistic regression analysis showed that minority (Tujia), male sex, premature birth, congenital malformations, abnormal fetal position, intrauterine distress, maternal occupation as a farmer, education level below high school, fewer than 9 prenatal check-ups, threatened abortion, abnormal umbilical cord, abnormal amniotic fluid, placenta previa, abruptio placentae, emergency caesarean section, and assisted delivery were independent risk factors for neonatal asphyxia (P<0.05). The area under the curve of the model for predicting the risk of neonatal asphyxia based on these risk factors was 0.748 (95%CI: 0.723-0.772). The calibration curve indicated high accuracy of the model for predicting the risk of neonatal asphyxia. The decision curve analysis showed that the model could provide a higher net benefit for neonates at risk of asphyxia.
		                        		
		                        			CONCLUSIONS
		                        			The risk factors for neonatal asphyxia in Hubei Enshi Tujia and Miao Autonomous Prefecture are multifactorial, and the nomogram model based on these factors has good value in predicting the risk of neonatal asphyxia, which can help clinicians identify neonates at high risk of asphyxia early, and reduce the incidence of neonatal asphyxia.
		                        		
		                        		
		                        		
		                        			Infant, Newborn
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Pregnancy
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Nomograms
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Cesarean Section
		                        			;
		                        		
		                        			Risk Factors
		                        			;
		                        		
		                        			Asphyxia Neonatorum/etiology*
		                        			
		                        		
		                        	
3.Effect of Recombinant Human Thrombopoietin (rhTPO) on Hematopoietic Reconstitution in Allogeneic Hematopoietic Stem Cell Transplantation Model.
Jin QIU ; Li-Ying HAN ; Hong-Yun XING ; Kun-Li GAO ; Tie-Rong BIAN
Journal of Experimental Hematology 2023;31(1):241-246
		                        		
		                        			OBJECTIVE:
		                        			To explore the effect of recombinant human thrombopoietin (rhTPO) on hematopoietic reconstruction in allogeneic hematopoietic stem cell transplantation (allo-HSCT) model.
		                        		
		                        			METHODS:
		                        			The C57BL/6 mice were employed as the donors, and BALB/c mice as recipients. The bone marrow mononuclear cells of the donor mice were extracted and pretreated, which then were injected with 5×106 per mouse through the tail vein of the recipient to establish an allo-HSCT model. The implantation of hematopoietic stem cells in the recipient mice was detected by flow cytometry on the 28th day after transplantation. Next, the successfully modeled recipient mice were randomly divided into experimental group and control group. The rhTPO was injected into mice in the experimental group on the first day after transplantation, while the saline was injected into mice in the control group. Both groups were injected for 14 consecutive days. The peripheral blood and bone marrow hematopoiesis of the two groups were observed on day 1, 3, 7, 14, and 21 after transplantation.
		                        		
		                        			RESULTS:
		                        			The expression rate of H-2Kb in the bone marrow of recipient mice was 43.85% (>20%) on the 28th day after transplantation, which indicated that the recipient mice were successfully chimerized. Meanwhile, counts of PLTs on the day 3, 7, 14, and 21 after transplantation in the experimental group were higher than those in the control group with statistical significances (P<0.05). In addition, hematopoietic function of bone marrow was suppressed in both groups on day 1, 3 and 7 after transplantation, but hematopoietic bone marrow hyperplasia was better in the experimental group than in the control group. On day 14 and 21 after transplantation, the hematopoietic function of bone marrow in the two groups was recovered, and the experimental group showed more obvious than the control group.
		                        		
		                        			CONCLUSION
		                        			rhTPO can effectively stimulate the production of PLTs and facilitate the recovery of white blood cells and hemoglobin after allo-HSCT, and promote hematopoietic recovery and reconstitution of bone marrow.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Mice
		                        			;
		                        		
		                        			Thrombopoietin
		                        			;
		                        		
		                        			Mice, Inbred C57BL
		                        			;
		                        		
		                        			Hematopoietic Stem Cell Transplantation
		                        			;
		                        		
		                        			Hematopoietic Stem Cells
		                        			;
		                        		
		                        			Bone Marrow
		                        			;
		                        		
		                        			Recombinant Proteins
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		                        			Mice, Inbred BALB C
		                        			
		                        		
		                        	
4.Clinical characteristics and diagnosis and treatment strategies of patients with severe traumatic aortic injury.
Ying Zhen BU ; Xuan Ze LIU ; Tie Nan ZHOU ; Xu Dong LIU ; Hong Xu JIN ; Xiao Jiang LIU ; Xiao Zeng WANG
Chinese Journal of Cardiology 2022;50(8):767-773
		                        		
		                        			
		                        			Objective: To investigate the clinical characteristics and diagnosis and treatment strategies of patients with severe traumatic aortic injury (TAI). Methods: A total of 25 patients with TAI, who hospitalized in our hospital between August 2005 to March 2021 and underwent thoracic aortic endovascular repair (TEVAR), were included in this retrospective study. According to the time from admission to TEVAR, the patients were divided into emergency TEVAR group (14 cases, TEVAR within 24 h of admission) and elective TEVAR group (11 cases, patients underwent surgery or fracture reduction and fixation first for serious injuries and then underwent TEVAR more than 24 h after admission). The general clinical data of patients, injury severity score (ISS), time from admission to intervention, total hospital stay, the proportion of closed chest drainage and the proportion of abdominal organ repair were obtained and compared. Clinical follow-up and 1-year postoperative aortic computed tomography angiography (CTA) were performed on the patients. Death, the occurrence of aortic adverse events and injury recovery were followed up and recorded. Results: The mean age of these 25 TAI patients was (41.4±14.4) years, 20 patients were males (80.0%). 21 patients (84.0%) had persistent chest and back pain, 17 (68.0%) had pleural effusion and 5 (20.0%) had mediastinal hematoma. The injury severity score (ISS) was significantly higher in the elective TEVAR group than in the emergency TEVAR group (24.9±14.4 vs. 35.5±9.3, P=0.044). The time from admission to intervention ((1.0±0.0) d vs. (3.4±0.9) d, P<0.001], the time from admission to TEVAR ((1.0±0.0) d vs. (11.5±13.8) d, P=0.030) and total hospital stay ((6.1±2.3) d vs. (26.8±7.7) d, P<0.001) were significantly longer in elective TEVAR group than in emergency TEVAR group. The proportion of thoracic closed drainage was significantly lower in the elective TEVAR group than in the emergency TEVAR group (9 (64.3%) vs. 2 (18.2%), P=0.042). The proportion of abdominal organ repair was significantly higher than in the emergency TEVAR group (0 vs. 4 (36.4%), P=0.026). All of 25 patients were discharged alive and followed up for (84.0±30.5) months. All patients survived and completed 1-year postoperation CTA. There were no aortic adverse events occurred, and no complications after surgery, and the fractures and organ injuries healed well. Conclusions: The clinical characteristics of severe TAI are acute multi-injuries combined with persistent chest and/or back pain, pleural effusion, and mediastinal hematoma. Timely diagnosis and treatment are important factors for the outcome. The treatment strategy for multi-injuries should give priority to dealing with life-threatening injuries. TEVAR is the primary treatment strategy for severe TAI and is related to satisfactory outcomes.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Aorta, Thoracic/surgery*
		                        			;
		                        		
		                        			Aortic Diseases
		                        			;
		                        		
		                        			Blood Vessel Prosthesis Implantation/adverse effects*
		                        			;
		                        		
		                        			Endovascular Procedures/methods*
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Hematoma/surgery*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Pleural Effusion/surgery*
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Risk Factors
		                        			;
		                        		
		                        			Treatment Outcome
		                        			
		                        		
		                        	
5.Clinicopathological analysis of 844 cases of odontogenic keratocysts.
Yan Jin WANG ; Xiao Yan XIE ; Ying Ying HONG ; Jia Ying BAI ; Jian Yun ZHANG ; Tie Jun LI
Journal of Peking University(Health Sciences) 2020;52(1):35-42
		                        		
		                        			OBJECTIVE:
		                        			To investigate the clinicopathologic features and prognostic factors in odontogenic keratocyst (OKC), and to provide new reference for clinic treatment and management of these patients.
		                        		
		                        			METHODS:
		                        			Clinicopathological data of 844 cases initially diagnosed as or associated with OKC at Department of Oral Pathology, Peking University Hospital of Stomatology from 2000 to 2018 were collected. The cases were divided into 4 groups: sporadic OKCs (intraosseous, cystic lesion irrelevant to nevoid basal cell carcinoma syndrome), syndromic OKCs, solid OKCs and peripheral OKCs. The patients were follow-up for 6 to 216 months and the factors that might relate to recurrence were analyzed.
		                        		
		                        			RESULTS:
		                        			There were 805 cases (95.4%) of sporadic OKCs, 32 cases (3.8%) of syndromic OKCs, 3 cases of solid OKCs and 4 cases of peripheral OKCs. The main age of sporadic OKCs was 36.03 years with the peak at the second and third decades. Ratio of male and female was 1.27:1. The predilection site was the molar and ramus area of mandibular (56.2%). In the study, 428 cases (71.2%) were unilocular in radiography while 28.8% were multilocular. The recurrent rate of enucleation with the follow-up was 20.1% (118/588) while most of them occurred in 1-3 years after surgery. The recurrent rate of multilocular patients (39.0%) was significantly higher than that of the unilocular. Enucleation after marsupialization (43 cases) or enucleation only (545 cases) showed no difference in recurrence (P>0.05). The syndromic OKCs was younger (main 20.97) and preferred to be multiple compared with sporadic OKCs (30/32, 93.7%). The predilection site was also molar and ramus area of mandibular (41.7%). Age and gender distribution of multiple cases had no significant difference with those in sporadic OKCs. More daughter cysts and epithelial islands were seen (56.3% and 17.9%). Furthermore, the recurrent rate was significantly higher than that of the sporadic OKCs (13/29, 44.9%). But there was no evidence of recurrent-related factors. The age of solid and peripheral OKCs, averaged at 45.00 and 65.75 years, were older than others. Four of peripheral OKCs showed no recurrence after enucleation.
		                        		
		                        			CONCLUSION
		                        			The recurrence rate of sporadic OKCs after enucleation is 20.1%. The multilocular lesions prefer to be recurrent. There is no significant difference of recurrence with enucleation only or enucleation after marsupialization. Compared with sporadic OKCs, the syndromic patients are younger and easier to be multiple. It tends to be recurrent frequently and rapidly. There are no related factors about recurrence of syndromic patients. The clinicians should considerate comprehensively and make an individual management of therapy and follow-up. Solid and peripheral OKCs are rare and older.
		                        		
		                        		
		                        		
		                        			Female
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		                        			Humans
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		                        			Male
		                        			;
		                        		
		                        			Mandible
		                        			;
		                        		
		                        			Neoplasm Recurrence, Local
		                        			;
		                        		
		                        			Odontogenic Cysts
		                        			;
		                        		
		                        			Odontogenic Tumors
		                        			;
		                        		
		                        			Recurrence
		                        			;
		                        		
		                        			Retrospective Studies
		                        			
		                        		
		                        	
6.Professor 's experience of four elements of acupuncture manipulation practice.
Jin-Ying ZHAO ; Fu-Chun WANG ; Hai-Lin JIANG ; Tie LI
Chinese Acupuncture & Moxibustion 2020;40(2):203-205
		                        		
		                        			
		                        			Through collecting the 30-year medical experience of professor , the methods of acupuncture manipulation practice were summarized so as to provide the reference for the medical staffs in acupuncture teaching and clinical work. Professor proposes four key elements of acupuncture manipulation practice, i.e. the style of needling practice, the consciousness of needling practice, the strength of needling practice and of needling practice. Acupuncture manipulation is a highly operational clinical skill. The knowledge learning from the experience of the instructors is the important way to improve acupuncture techniques. Besides, beginners need to improve their techniques through learning the theories, a large amount of exercises as well as the self-perception.
		                        		
		                        		
		                        		
		                        	
7.Effect of hydrogen molecule on apoptosis-related proteins and Nrf2 signa-ling pathway in glomerular mesangial cells cultured with high glucose
Yin-Ping LI ; Xue-Ming ZHANG ; Kai-Cheng WANG ; Lei YING ; Yang WANG ; Wan-Tie WANG ; Ke-Ke JIN
Chinese Journal of Pathophysiology 2018;34(1):29-34
		                        		
		                        			
		                        			AIM:To investigate the role of hydrogen molecule on apoptosis-related proteins in glomerular me-sangial cells cultured with high glucose and to explore its possible mechanism.METHODS:Mouse glomerular mesangial cells cultured in vitro were divided into 4 groups:normal control group(C group,5.5 mmol/L glucose),mannitol group(G group,5.5 mmol/L glucose+19.5 mmol/L mannitol),high glucose group(H group,25 mmol/L glucose),high glu-cose+hydrogen-rich water group(HH group,25 mmol/L glucose+hydrogen-rich water),and cultured for 48 h.The pro-tein levels of Bax,Bcl-2,cleaved caspase-3,nuclear factor E2-related factor-2(Nrf2),heme oxygenase-1(HO-1)and NAD(P)H:quinone oxidoreductase-1(NQO-1)were determined by Western blot ,and the mRNA expression of HO-1 and NQO-1 was determined by RT-PCR.The level of intracellular reactive oxygen species(ROS)was detected by dihydro-ethidium method,and the activity of superoxide dismutase(SOD)was measured by WST-8 assay.RESULTS:Compared with C group,the protein levels of Bax and cleaved caspase-3 were up-regulated,and Bcl-2 was down-regulated in H group(P <0.05).No significantly difference of the protein levels mentioned above between C and HH group was observed. Compared with H group,the protein levels of Bax and cleaved caspase-3 were down-regulated,and Bcl-2 was up-regulated in HH group(P <0.05).The level of intracellular ROS was higher and the activity of SOD was lower in H group than those in C group(P<0.05).However,there was no difference of the SOD activity between C group and HH group.The level of intracellular ROS decreased and the activity of SOD increased in HH group as compared with H group(P<0.05). Compared with C group,clearly reduced protein expression of Nrf2,HO-1 and NQO-1,and decreased mRNA expression of HO-1 and NQO-1 in H group were observed(P<0.05).Compared with H group,the protein levels of Nrf2,HO-1 and NQO-1 as well as the mRNA levels of HO-1 and NQO-1 were obviously increased in HH group(P<0.05 ).CONCLU-SION:Hydrogen molecule inhibits the expression of pro-apoptotic proteins and induces the expression of anti-apoptotic pro-teins in glomerular mesangial cells cultured with high glucose.The mechanism may be related to activation of Nrf 2 signaling pathway.
		                        		
		                        		
		                        		
		                        	
8.Prevention of multidrug-resistant organism infection through chlorhexidine gluconate rubbing bathing in patients in intensive care unit
Jin-Hua HUANG ; Xu-Hui KONG ; Ying DING ; Tie-Lin ZHU ; Ling WANG
Chinese Journal of Infection Control 2018;17(3):252-255
		                        		
		                        			
		                        			Objective To study the effect of chlorhexidine gluconate rubbing bathing on preventing multidrug-resistant organism(MDRO)infection in patients in intensive care unit(ICU).Methods 108 critically ill patients in a tertiary first-class hospital between January and December 2016 were randomly divided into trial group and control group.Trial group adopted wet towel containing 2% chlorhexidine gluconate for bathing, control group adopted water for bathing.Bacteriostasis rate, incidence of healthcare-associated infection(HAI), occurrence of MDRO infection, and adverse reaction between two groups of patients after rubbing bathing were compared.Results There was no significant difference in the bacteriostasis rate within 2 hours between two groups(P>0.05), bacteriostasis rates of trial group after 4, 8, and 24 hours of bathing were significantly higher than control group(P<0.001).Incidences of HAI in trial group and control group were 44.44%(24/54)and 66.67%(36/54)respectively(P<0.05); incidences of MDRO infection in trial group and control group were 20.37%(11/54)and 40.74%(22/54)respectively(P<0.05).The main infection sites in trial group and control group were both lower respiratory tract, accounting for 87.50%and72.22%respectively;8 cases(33.33%)in trial group and11(30.55%)in control group had ventilator-associated pneumonia(VAP).11 strains of MDROs in trial group and 22in control group were isolated, both were mainly carbapenem-resistant Acinetobacter baumannii (CRAB).There was no adverse reaction after the bathing in both groups.Conclusion Application of chlorhexidine gluconate bathing can effectively reduce the incidence of HAI and MDRO infection in ICU patients.
		                        		
		                        		
		                        		
		                        	
9.Effect of continuous blood purification on peripheral blood monocyte membrane binding CD14 expression and inflammatory response in patients with traumatic sepsis
Zhixin LI ; Lijun YING ; Liezhou JIN ; Tie LYU ; Guofeng YU
Chinese Journal of Trauma 2018;34(6):540-545
		                        		
		                        			
		                        			Objective To investigate the effect of continuous blood purification (CBP) on peripheral blood monocyte membrane CD14 (mCD14) expression and inflammatory response in patients with traumatic sepsis Methods A retrospective case control study was conducted on the clinical data of 50 patients with severe sepsis after trauma treated between January 2015 and December 2016. There were 34 males and 16 females, with an average age of 45.37 years (range, 16-73 years). Patients were divided into CBP group (25 cases) and non-CBP group (25 cases) according to whether they agreed to receive CBP treatment. The peripheral blood samples were collected at 0, 12, 24, 48, and 72 hours after treatment, and the mCD14 and leukocyte elastase (HLE) expressions were detected by flow cytometry and by ELISA, respectively. The peripheral blood mononuclear cells were isolated from the two groups 24 h after treatment and cultured in vitro. The variations of mCD14 expression in mononuclear cells were measured at 4, 8, 12, 24, 48, and 72 h after stimulation with lipopolysaccharide (LPS). The expression levels of tumor necrosis factor (TNF) -a, interleukin (IL) -6, and IL-10 in mononuclear cells were detected by ELISA. Results At 12, 24, 48, and 72 hours after treatment, the leukocyte elastase levels in the two groups were lower than those before treatment (P < 0.01), and the decrease in CBP group was significantly greater than that of non CBP group(P<0.01). At 12, 24, 48, and 72 hours after treatment, the mCD14 levels in both groups were up-regulated before treatment (P <0.01), and the increase in CBP group was significantly greater than that of non CBP group (P < 0.01). The mCD14 expressions before treatment, 4 h after treatment, and 8 h after treatment in CBP group were all higher than those in non CBP group at the same time points. At 4, 8, 12, 24, and 48 hours after the re-stimulation with LPS on the mononuclear cells in both groups, the levels of TNF-α and IL-6 in CBP group were significantly higher than those in non-CBP group (P <0.01), and there was no significant difference in IL-10 levels between the two groups (P >0.05). Conclusions CBP treatment can increase monocyte mCD14 expressions through eliminating inflammatory factors and pro-inflammatory mediators and reducing HLE directly or indirectly in patients with traumatic sepsis. When the body is stimulated again, its anti-inflammatory response ability is markedly stronger than that of patients who have not received CBP treatment.
		                        		
		                        		
		                        		
		                        	
10.Protective effect of Yiqi-Wenyang-Huoxue-Huatan formula on HHPH rat brain by suppressing excessive endoplasmic reticulum stress
qian Bing XIANG ; Hui GAO ; jie Xiao JIN ; yue Yong DAI ; ying Xiao QIAN ; wen Xi CHEN ; tie Wan WANG
Chinese Journal of Pathophysiology 2017;33(10):1759-1767
		                        		
		                        			
		                        			AIM:To investigate whether Yiqi-Wenyang-Huoxue-Huatan formula ( YWHHF) attenuats brain injury induced by hypoxia-hypercapnia pulmonary hypertension ( HHPH) in the rats by inhibiting excessive endoplasmic re-ticulum stress response .METHODS:Healthy SPF male SD rats ( n=50 ) were randomly divided into 5 groups: control group, hypoxia-hypercapnia group, low-dose YWHHF group, middle-dose YWHHF group and high-dose YWHHF group. The rats in control group lived in normal environment , while the rats in other 4 groups were raised for 4 weeks in oxygen tank with low oxygen concentration and high CO 2 concentration .YWHHF was perfused in the rats of low-, middle-and high-dose groups at 0.15, 0.3 and 0.6 g/kg daily, respectively.The rats in hypoxia-hypercapnia group were given isomet-ric distilled water.The surgery was performed on the rats after 4 weeks, and the brain and lung tissues were quickly collect-ed to detect brain water content and observe the morphological changes after mean pulmonary artery pressure recording and heart perfusion .The caspase-3 activity and the apoptotic index of the brain cells were determined .The expression of c-Jun N-terminal kinase (JNK), caspase-12, C/EBP homologous protein (CHOP) and glucose-regulated protein 78 (GRP78) at protein and mRNA levels in brain tissues was detected by Western blot and RT-PCR.RESULTS:Compared with con-trol group, mean pulmonary artery pressure, brain water content, brain apoptotic index, caspase-3 activity, and the protein and mRNA levels of JNK, caspase-12, CHOP and GRP78 in the rest 4 groups were increased , and the brain and lung tis-sues had obvious damage under light microscope .Compared with hypoxia-hypercapnia group , mean pulmonary artery pres-sure, brain water content , brain apoptotic index , caspase-3 activity, and the protein and mRNA expression of JNK , caspase-12, CHOP and GRP78 in low-, middle-and high-dose YWHHF groups were decreased , and the pathological dam-age of the brain and lung tissues was obviously reduced under light microscope .These changes in middle-dose YWHHF group were the most significant .CONCLUSION:YWHHF effectively relieves the brain injury induced by HHPH in rats , which may be associated with inhibiting excessive endoplasmic reticulum stress response .
		                        		
		                        		
		                        		
		                        	
            
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