1.Hippocampal Extracellular Matrix Protein Laminin β1 Regulates Neuropathic Pain and Pain-Related Cognitive Impairment.
Ying-Chun LI ; Pei-Yang LIU ; Hai-Tao LI ; Shuai WANG ; Yun-Xin SHI ; Zhen-Zhen LI ; Wen-Guang CHU ; Xia LI ; Wan-Neng LIU ; Xing-Xing ZHENG ; Fei WANG ; Wen-Juan HAN ; Jie ZHANG ; Sheng-Xi WU ; Rou-Gang XIE ; Ceng LUO
Neuroscience Bulletin 2025;41(12):2127-2147
Patients suffering from nerve injury often experience exacerbated pain responses and complain of memory deficits. The dorsal hippocampus (dHPC), a well-defined region responsible for learning and memory, displays maladaptive plasticity upon injury, which is assumed to underlie pain hypersensitivity and cognitive deficits. However, much attention has thus far been paid to intracellular mechanisms of plasticity rather than extracellular alterations that might trigger and facilitate intracellular changes. Emerging evidence has shown that nerve injury alters the microarchitecture of the extracellular matrix (ECM) and decreases ECM rigidity in the dHPC. Despite this, it remains elusive which element of the ECM in the dHPC is affected and how it contributes to neuropathic pain and comorbid cognitive deficits. Laminin, a key element of the ECM, consists of α-, β-, and γ-chains and has been implicated in several pathophysiological processes. Here, we showed that peripheral nerve injury downregulates laminin β1 (LAMB1) in the dHPC. Silencing of hippocampal LAMB1 exacerbates pain sensitivity and induces cognitive dysfunction. Further mechanistic analysis revealed that loss of hippocampal LAMB1 causes dysregulated Src/NR2A signaling cascades via interaction with integrin β1, leading to decreased Ca2+ levels in pyramidal neurons, which in turn orchestrates structural and functional plasticity and eventually results in exaggerated pain responses and cognitive deficits. In this study, we shed new light on the functional capability of hippocampal ECM LAMB1 in the modulation of neuropathic pain and comorbid cognitive deficits, and reveal a mechanism that conveys extracellular alterations to intracellular plasticity. Moreover, we identified hippocampal LAMB1/integrin β1 signaling as a potential therapeutic target for the treatment of neuropathic pain and related memory loss.
Animals
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Laminin/genetics*
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Hippocampus/metabolism*
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Neuralgia/metabolism*
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Cognitive Dysfunction/etiology*
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Male
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Peripheral Nerve Injuries/metabolism*
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Extracellular Matrix/metabolism*
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Integrin beta1/metabolism*
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Pyramidal Cells/metabolism*
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Signal Transduction
2.Comparative analysis of Exoview and Mimics three-dimensional reconstruction in thoracoscopic pulmonary segmentectomy
Jun-ping ZHU ; Meng-meng GUO ; Jia-xing SHI ; Zhi-gang GUO ; Sheng-hui YANG ; Zhen QIAO
Journal of Regional Anatomy and Operative Surgery 2025;34(11):998-1003
Objective To compare the effects of sequential Exoview and Mimics three-dimensional reconstruction with fluorescence method in thoracoscopic pulmonary segmentectomy.Methods The clinical data of 160 patients with lung cancer admitted to our hospital from January 2020 to June 2023 were retrospectively analyzed.Among them,79 patients who underwent thoracoscopic pulmonary segmentectomy with the sequential Exoview three-dimensional reconstruction and fluorescence method before the operation were classified as the Exoview group,and 81 patients who underwent thoracoscopic pulmonary segmentectomy with the sequential Mimics three-dimensional reconstruction and fluorescence method before the operation were classified as the Mimics group.The surgical completion status,the coincidence rate between the number of left and right pulmonary artery branches evaluated before operation and intraoperative findings,reconstruction time,segment display effect,general indicators of operation(operation time,intraoperative blood loss,number of lymph node dissection,thoracic tube placement time,postoperative hospital stay),pulmonary function[forced expiratory volume in one second(FEV1),percentage of forced expiratory volume in one second(FEV1%)]and complications were compared between the two groups.Results All patients in the two groups successfully completed thoracoscopic pulmonary segmentectomy,and indocyanine green was injected once in each group.The operation process was roughly consistent with the preoperative simulation,and no thoracotomy was performed.There was no statistically significant difference in the resection of lung segment between the two groups of patients(P>0.05).The coincidence rate between the number of left and right pulmonary artery branches evaluated before operation and intraoperative findings in the Exoview group was higher than that in the Mimics group(P<0.05).There was no significant difference in the segment display effect between the Exoview group and the Mimics group(P>0.05).The operation time and the reconstruction time in the Exoview group were shorter those that in the Mimics group,and the intraoperative blood loss was less than that in the Mimics group(P<0.05).There was no significant difference in the number of lymph node dissection,the thoracic tube placement time,or the postoperative hospital stay between the two groups(P>0.05).There was no statistically significant difference in FEV1 or FEV1%7 days after surgery compared with those before surgery(P>0.05).The FEV1 and FEV1%of patients in the Mimics group 7 days after surgery were lower than those beforesurgery(P<0.05).There was no statistically significant difference in FEV1 or FEV1%between the Exoview group and the Mimics group before and 7 days after surgery(P>0.05).The total incidence of complications in the Exoview group was 1.27%,compared with 4.94%in the Mimics group,the difference was not statistically significant(P>0.05).Conclusion Both sequential Exoview and Mimics three-dimensional reconstruction with fluorescence method are safe and effective for thoracoscopic pulmonary segmentectomy,while Exoview has more advantages in preoperative assessment of the number of pulmonary artery branches,and it has shorter reconstruction time and operation time,with less impact on lung function.
3.Effect of Qishen Yixin Granules on microcirculatory endothelial dysfunction induced by Ang Ⅱ and high-fat diet in mice and its mechanism
Wen-fang JIN ; Zhen-ni ZHANG ; Tian-tian ZHU ; Hu-gang JIANG ; Xin-qiang WANG ; Chun-zhen REN ; Xi-ping XING ; Kai LIU ; Ying-dong LI ; Xin-ke ZHAO
Chinese Pharmacological Bulletin 2025;41(10):1982-1990
Aim To clarify the mechanism by which Qishen Yixin Granules improved microcirculation vas-cular endothelial dysfunction(VED)in mice,through activating the Nrf2/HO-1 signaling pathway to regulate oxidative stress.Methods C57 mice were randomly divided into six groups:blank group,model group,pos-itive drug group,and low-,medium-,and high-dose groups of Qishen Yixin Granules.The VED model was established by long-term infusion of Ang Ⅱ combined with a high-fat diet.Each treatment group received the corresponding drug intervention.After four weeks of drug intervention,cardiac function was assessed by echocardiography.Carstairs staining was used to ob-serve the formation of microthrombi in myocardial tis-sue.The micro vascular ischemia was evaluated by Hei-denhain staining.The ultrastructure of endothelial cells was observed by electron microscopy.The levels of EMPs,ROS,NO,ET-1,TF,TM,VWF,and TXA2 in serum were measured by ELISA.The expression levels of MDA,SOD,and GSH-Px in mouse heart tissue were determined by chemical methods.Cardiac microvascu-lar density and the expression of Nrf2,Keap1,and HO-1 proteins were detected by Immunohistochemical stai-ning.The protein expressions of Keap1,cytoplasmic Nrf2,nuclear Nrf2,and HO-1 in myocardial tissue were detected by Western blot.Results Qishen Yixin Granules could effectively improve the cardiac function of mice,alleviate the damage of endothelial cells and endothelial function.They could up-regulate serum NO levels and the activities of antioxidant enzymes SOD and GSH-Px,while down-regulating the expression of ROS and vascular inflammatory injury factors such as ET-1,VWF,TXA2,TF,TM,and EMPs.Qishen Yixin Granules also increased the positive counts of CD34,Nrf2,and HO-1,as well as microvessel density.Fur-thermore,they inhibited the expression of MDA,Keap1,and cytoplasmic Nrf2 protein in myocardial tis-sue,while increasing the expression of nuclear proteins HO-1 and Nrf2.Conclusions Qishen Yixin Granules may inhibit oxidative stress and inflammatory response by regulating the Nrf2/HO-1 signaling pathway,thereby improving vascular endothelial damage and cardiac function in VED mice.
4.Comparative analysis of Exoview and Mimics three-dimensional reconstruction in thoracoscopic pulmonary segmentectomy
Jun-ping ZHU ; Meng-meng GUO ; Jia-xing SHI ; Zhi-gang GUO ; Sheng-hui YANG ; Zhen QIAO
Journal of Regional Anatomy and Operative Surgery 2025;34(11):998-1003
Objective To compare the effects of sequential Exoview and Mimics three-dimensional reconstruction with fluorescence method in thoracoscopic pulmonary segmentectomy.Methods The clinical data of 160 patients with lung cancer admitted to our hospital from January 2020 to June 2023 were retrospectively analyzed.Among them,79 patients who underwent thoracoscopic pulmonary segmentectomy with the sequential Exoview three-dimensional reconstruction and fluorescence method before the operation were classified as the Exoview group,and 81 patients who underwent thoracoscopic pulmonary segmentectomy with the sequential Mimics three-dimensional reconstruction and fluorescence method before the operation were classified as the Mimics group.The surgical completion status,the coincidence rate between the number of left and right pulmonary artery branches evaluated before operation and intraoperative findings,reconstruction time,segment display effect,general indicators of operation(operation time,intraoperative blood loss,number of lymph node dissection,thoracic tube placement time,postoperative hospital stay),pulmonary function[forced expiratory volume in one second(FEV1),percentage of forced expiratory volume in one second(FEV1%)]and complications were compared between the two groups.Results All patients in the two groups successfully completed thoracoscopic pulmonary segmentectomy,and indocyanine green was injected once in each group.The operation process was roughly consistent with the preoperative simulation,and no thoracotomy was performed.There was no statistically significant difference in the resection of lung segment between the two groups of patients(P>0.05).The coincidence rate between the number of left and right pulmonary artery branches evaluated before operation and intraoperative findings in the Exoview group was higher than that in the Mimics group(P<0.05).There was no significant difference in the segment display effect between the Exoview group and the Mimics group(P>0.05).The operation time and the reconstruction time in the Exoview group were shorter those that in the Mimics group,and the intraoperative blood loss was less than that in the Mimics group(P<0.05).There was no significant difference in the number of lymph node dissection,the thoracic tube placement time,or the postoperative hospital stay between the two groups(P>0.05).There was no statistically significant difference in FEV1 or FEV1%7 days after surgery compared with those before surgery(P>0.05).The FEV1 and FEV1%of patients in the Mimics group 7 days after surgery were lower than those beforesurgery(P<0.05).There was no statistically significant difference in FEV1 or FEV1%between the Exoview group and the Mimics group before and 7 days after surgery(P>0.05).The total incidence of complications in the Exoview group was 1.27%,compared with 4.94%in the Mimics group,the difference was not statistically significant(P>0.05).Conclusion Both sequential Exoview and Mimics three-dimensional reconstruction with fluorescence method are safe and effective for thoracoscopic pulmonary segmentectomy,while Exoview has more advantages in preoperative assessment of the number of pulmonary artery branches,and it has shorter reconstruction time and operation time,with less impact on lung function.
5.Effect of Qishen Yixin Granules on microcirculatory endothelial dysfunction induced by Ang Ⅱ and high-fat diet in mice and its mechanism
Wen-fang JIN ; Zhen-ni ZHANG ; Tian-tian ZHU ; Hu-gang JIANG ; Xin-qiang WANG ; Chun-zhen REN ; Xi-ping XING ; Kai LIU ; Ying-dong LI ; Xin-ke ZHAO
Chinese Pharmacological Bulletin 2025;41(10):1982-1990
Aim To clarify the mechanism by which Qishen Yixin Granules improved microcirculation vas-cular endothelial dysfunction(VED)in mice,through activating the Nrf2/HO-1 signaling pathway to regulate oxidative stress.Methods C57 mice were randomly divided into six groups:blank group,model group,pos-itive drug group,and low-,medium-,and high-dose groups of Qishen Yixin Granules.The VED model was established by long-term infusion of Ang Ⅱ combined with a high-fat diet.Each treatment group received the corresponding drug intervention.After four weeks of drug intervention,cardiac function was assessed by echocardiography.Carstairs staining was used to ob-serve the formation of microthrombi in myocardial tis-sue.The micro vascular ischemia was evaluated by Hei-denhain staining.The ultrastructure of endothelial cells was observed by electron microscopy.The levels of EMPs,ROS,NO,ET-1,TF,TM,VWF,and TXA2 in serum were measured by ELISA.The expression levels of MDA,SOD,and GSH-Px in mouse heart tissue were determined by chemical methods.Cardiac microvascu-lar density and the expression of Nrf2,Keap1,and HO-1 proteins were detected by Immunohistochemical stai-ning.The protein expressions of Keap1,cytoplasmic Nrf2,nuclear Nrf2,and HO-1 in myocardial tissue were detected by Western blot.Results Qishen Yixin Granules could effectively improve the cardiac function of mice,alleviate the damage of endothelial cells and endothelial function.They could up-regulate serum NO levels and the activities of antioxidant enzymes SOD and GSH-Px,while down-regulating the expression of ROS and vascular inflammatory injury factors such as ET-1,VWF,TXA2,TF,TM,and EMPs.Qishen Yixin Granules also increased the positive counts of CD34,Nrf2,and HO-1,as well as microvessel density.Fur-thermore,they inhibited the expression of MDA,Keap1,and cytoplasmic Nrf2 protein in myocardial tis-sue,while increasing the expression of nuclear proteins HO-1 and Nrf2.Conclusions Qishen Yixin Granules may inhibit oxidative stress and inflammatory response by regulating the Nrf2/HO-1 signaling pathway,thereby improving vascular endothelial damage and cardiac function in VED mice.
6.Total body water percentage and 3rd space water are novel risk factors for training-related lower extremity muscle injuries in young males
Liang CHEN ; Ke-Xing JIN ; Jing YANG ; Jun-Jie OUYANG ; Han-Gang CHEN ; Si-Ru ZHOU ; Xiao-Qing LUO ; Mi LIU ; Liang KUANG ; Yang-Li XIE ; Yan HU ; Lin CHEN ; Zhen-Hong NI ; Xiao-Lan DU
Chinese Journal of Traumatology 2024;27(3):168-172
Purpose::To identify the risk factors for training-related lower extremity muscle injuries in young males by a non-invasive method of body composition analysis.Methods::A total of 282 healthy young male volunteers aged 18 -20 years participated in this cohort study. Injury location, degree, and injury rate were adjusted by a questionnaire based on the overuse injury assessment methods used in epidemiological studies of sports injuries. The occurrence of training injuries is monitored and diagnosed by physicians and treated accordingly. The body composition was measured using the BodyStat QuadScan 4000 multifrequency Bio-impedance system at 5, 50, 100 and 200 kHz to obtain 4 impedance values. The Shapiro-Wilk test was used to check whether the data conformed to a normal distribution. Data of normal distribution were shown as mean ± SD and analyzed by t-test, while those of non-normal distribution were shown as median (Q 1, Q 3) and analyzed by Wilcoxon rank sum test. The receiver operator characteristic curve and logistic regression analysis were performed to investigate risk factors for developing training-related lower extremity injuries and accuracy. Results::Among the 282 subjects, 78 (27.7%) developed training injuries. Lower extremity training injuries revealed the highest incidence, accounting for 23.4% (66 cases). These patients showed higher percentages of lean body mass ( p = 0.001), total body water (TBW, p=0.006), extracellular water ( p=0.020) and intracellular water ( p=0.010) as well as a larger ratio of basal metabolic rate/total weight ( p=0.006), compared with those without lower extremity muscle injuries. On the contrary, the percentage of body fat ( p=0.001) and body fat mass index ( p=0.002) were lower. Logistic regression analysis showed that TBW percentage > 65.35% ( p=0.050, odds ratio =3.114) and 3rd space water > 0.95% ( p=0.045, odds ratio =2.342) were independent risk factors for lower extremity muscle injuries. Conclusion::TBW percentage and 3rd space water measured with bio-impedance method are potential risk factors for predicting the incidence of lower extremity muscle injuries in young males following training.
7.A multicenter, randomized controlled clinical trial of Pseudomonas aeruginosa injection for prevention of recurrent urinary tract infections
Zhen DU ; Liang CUI ; Zhan GAO ; Yi ZHI ; Gang CUI ; Peng ZHANG ; Hongfeng GUO ; Shan ZHONG ; Benkang SHI ; Yan LI ; Yong ZHANG ; Yifei XING ; Shan CHEN ; Ludong QIAO
Chinese Journal of Urology 2024;45(12):925-931
Objective:To investigate the clinical efficacy and safety of Pseudomonas aeruginosa injection in preventing reurrent urinary tract infection in women. Methods:This was a multicenter, randomized, open, positive-controlled, non-inferiority trial involving female patients with recurrent urinary tract infections (rUTIs) who were admitted to 11 medical centers in China. Inclusion criteria: ①Aged 18-70 years, with verifiable clinical data showing at least 3 episodes of acute UTIs within 1 year and at least 2 episodes within 6 months, and cured by antimicrobial therapy; ② At the time of enrollment, the patients had no obvious symptoms of urinary tract irritation, normal white blood cell count in midstream urine routine (within the normal range of laboratory standards of each unit) or ≤3HP by centrifuge microscopy, negative leucocyte esterase and nitrite, and negative urine culture; ③No abnormal urinary anatomic function (such as urinary obstruction, calculus or congenital urinary malformation) and residual urine volume ≤50 ml were detected by B-ultrasound of urinary system; ④Informed consent signed by the person or agent; ⑤Clear consciousness, able to answer questions independently, according to the requirements of the test plan to complete the research questionnaire. Exclusion criteria: ①Patients allergic to the above drugs; ②Any complex signs of urinary tract infection or pyelonephritis (manifested as low back pain, fever ≥37.3℃, systemic symptoms); ③Drugs affecting immune function were used within 7 days before randomization; ④Patients with basic diseases of urinary system such as obstruction, calculus, urinary stenosis, vesicoureteral reflux or other functional abnormalities, urine diversion, indwelling catheter or stent tube or intermittent catheterization; ⑤Combined with or existing systemic lupus erythematosus, AIDS and other diseases that can lead to systemic immune function abnormalities; ⑥Patients who are known or suspected to be pregnant, breastfeeding, or planning a pregnancy within 3 months of stopping the drug; ⑦Patients with malignant tumors and mental patients; ⑧Persons who have received any other investigational drug treatment or participated in another interventional clinical trial within 4 weeks prior to screening; ⑨Failure to comply with the trial protocol or other conditions deemed unsuitable for enrollment by the investigator. Patients were randomly divided into 2 groups. The experimental group was given Pseudomonas aeruginosa injection for 5 times, 0.5 ml for the first time, and 1 ml/ time per week for the following 4 weeks. The control group was given fosfomycin aminotriol 3g orally, once every 10 days, for 9 consecutive times. The patients were followed up for 6 to 8 months, during which urinary tract symptoms developed and routine urine tests showed abnormally elevated white blood cells, which was defined as recurrent UTIs. Urine routine, liver and kidney function, and urinary secretory immunoglobulin A(SIgA) were reviewed 0-2 days (V2) after the 5th administration of the experimental group and the 4th administration of the control group. Urine routine and urine SIgA were reviewed at (90±10) d (V3) and (180±10) d (V4) after treatment. At (270±10) d (V5) after treatment, the recurrence (re-infection caused by the same species of bacteria) or re-infection (re-infection caused by non-same species of bacteria) of the two groups were compared, and non-inferiority analysis was performed, and the non-inferiority threshold was set at 0.2. Results:From March 2021 to May 2022, a total of 152 rUTIs patients were enrolled in this study, including 80 patients in the experimental group, 71 patients in the intention-to-analysis set (ITT) and 66 patients in the protocol analysis set (PPS). In the control group, 72 cases met ITT in 69 cases and PPS in 67 cases. There were no significant differences in age, body mass index, marital status, duration of urinary tract infection, history of diabetes, history of previous major surgery, history of infection, and urinary SIgA between the two groups (all P>0.05). The recurrence rates of the experimental group and the control group at V5 time point were 44.78% (30/67) and 42.65% (29/68), respectively ( P=0.803) (ITT data set analysis results showed that the difference in recurrence rates between the two groups was 0.0213(95% CI-0.1460-0.1886, P=0.0048). PPS data set analysis showed that the difference of recurrence rate between the two groups was -0.0021(95%CI -0.1711-0.1670, P=0.0109), and the recurrence rate of the experimental group was not worse than that of the control group. At V2 time points, there were no significant differences in liver and kidney function indexes between test group and control group ( P>0.05). At V2 to V4 time points, urinary SIgA of test group and control group were 0.90 (0.37, 2.89) mg/L and 1.32 (0.34, 3.08) mg/L, 1.54 (0.44, 3.23) mg/L and 1.71 (0.27, 2.92) mg/L, 1.11 (0.65, 3.42) mg/L and 2.18 (0.43, 3.26) mg/L, there was no statistical significance ( P>0.05). The incidence of adverse events in the experimental group was 30.0% (24/80), including 14 cases of redness, pain and discomfort at the injection site, 5 cases of fever, 2 cases of allergic rash, and 1 case of urticaria, headache and constipation each. The incidence of adverse events in the control group was 5.6% (4/72), all of which were diarrhea, and the difference between the two groups was statistically significant ( P<0.01). No life-threatening serious adverse events occurred in both groups, and all adverse events were self-healing without additional intervention. Conclusions:Compared with fosfomycin aminotriol, Pseudomonas aeruginosa injection has the same clinical effect in preventing rUTI and has good safety.
8.Development of A Model to Predict Mixed Cerebral Palsy in Infants with Periventricular White Matter Injury
Tingting HUANG ; Lan ZHANG ; Wei XING ; Zhen LI ; Fei WANG ; Gang ZHANG
Chinese Journal of Medical Imaging 2024;32(7):659-666
Purpose To development a model to predict mixed cerebral palsy(CP)in infants with periventricular white matter injury(PWMI).Materials and Methods This study retrospectively included infants with PWMI on MRI aged 6 to 24 months and were diagnosed as CP after age of 2 years in the First Affiliated Hospital of Henan University of Chinese Medicine,from September 2015 to October 2022.The eligible infants were divided into mixed group and spastic CP group.Multivariable Logistic regression model was used to select the MRI features associated with PWMI and mixed CP,and was internal validated by using the five-fold cross and repeated cross validation.Model performance was evaluated by the discrimination,calibration and decision curve.The correlation between independent MRI features and the gross motor function classification system levels was evaluated.Results A total of 135 infants with PWMI and CP were included in this study,100 with spastic CP,and 35 with mixed CP.Multivariable Logistic regression analysis found that the involvement of ventralateral of thalamus(OR=27.500,95%CI 8.293-90.942),posterior putamen(OR=13.700,95%CI 4.489-41.549),hippocampus(OR=7.200,95%CI 1.702-30.813)and caudate nucleus(OR 5.800,95%CI 1.973-16.950)were associated with PWMI and mixed CP.A prediction model was constructed using the above four MRI features.The model yielded an area under the receiver operating characteristic curve of 0.960(95%CI 0.934-0.988)and 0.95,0.96 in the five-fold cross and repeated cross validation,respectively.The model had good calibration(χ2=3.712,P=0.529)and clinical application.Furthermore,the four MRI variables were associated with gross motor function classification system levels(r=0.559,0.581,0.171,0.409,all P<0.05).Conclusion The model can early and accurately predict infants with PWMI at high risk of mixed CP.
9.A multicenter, randomized controlled clinical trial of Pseudomonas aeruginosa injection for prevention of recurrent urinary tract infections
Zhen DU ; Liang CUI ; Zhan GAO ; Yi ZHI ; Gang CUI ; Peng ZHANG ; Hongfeng GUO ; Shan ZHONG ; Benkang SHI ; Yan LI ; Yong ZHANG ; Yifei XING ; Shan CHEN ; Ludong QIAO
Chinese Journal of Urology 2024;45(12):925-931
Objective:To investigate the clinical efficacy and safety of Pseudomonas aeruginosa injection in preventing reurrent urinary tract infection in women. Methods:This was a multicenter, randomized, open, positive-controlled, non-inferiority trial involving female patients with recurrent urinary tract infections (rUTIs) who were admitted to 11 medical centers in China. Inclusion criteria: ①Aged 18-70 years, with verifiable clinical data showing at least 3 episodes of acute UTIs within 1 year and at least 2 episodes within 6 months, and cured by antimicrobial therapy; ② At the time of enrollment, the patients had no obvious symptoms of urinary tract irritation, normal white blood cell count in midstream urine routine (within the normal range of laboratory standards of each unit) or ≤3HP by centrifuge microscopy, negative leucocyte esterase and nitrite, and negative urine culture; ③No abnormal urinary anatomic function (such as urinary obstruction, calculus or congenital urinary malformation) and residual urine volume ≤50 ml were detected by B-ultrasound of urinary system; ④Informed consent signed by the person or agent; ⑤Clear consciousness, able to answer questions independently, according to the requirements of the test plan to complete the research questionnaire. Exclusion criteria: ①Patients allergic to the above drugs; ②Any complex signs of urinary tract infection or pyelonephritis (manifested as low back pain, fever ≥37.3℃, systemic symptoms); ③Drugs affecting immune function were used within 7 days before randomization; ④Patients with basic diseases of urinary system such as obstruction, calculus, urinary stenosis, vesicoureteral reflux or other functional abnormalities, urine diversion, indwelling catheter or stent tube or intermittent catheterization; ⑤Combined with or existing systemic lupus erythematosus, AIDS and other diseases that can lead to systemic immune function abnormalities; ⑥Patients who are known or suspected to be pregnant, breastfeeding, or planning a pregnancy within 3 months of stopping the drug; ⑦Patients with malignant tumors and mental patients; ⑧Persons who have received any other investigational drug treatment or participated in another interventional clinical trial within 4 weeks prior to screening; ⑨Failure to comply with the trial protocol or other conditions deemed unsuitable for enrollment by the investigator. Patients were randomly divided into 2 groups. The experimental group was given Pseudomonas aeruginosa injection for 5 times, 0.5 ml for the first time, and 1 ml/ time per week for the following 4 weeks. The control group was given fosfomycin aminotriol 3g orally, once every 10 days, for 9 consecutive times. The patients were followed up for 6 to 8 months, during which urinary tract symptoms developed and routine urine tests showed abnormally elevated white blood cells, which was defined as recurrent UTIs. Urine routine, liver and kidney function, and urinary secretory immunoglobulin A(SIgA) were reviewed 0-2 days (V2) after the 5th administration of the experimental group and the 4th administration of the control group. Urine routine and urine SIgA were reviewed at (90±10) d (V3) and (180±10) d (V4) after treatment. At (270±10) d (V5) after treatment, the recurrence (re-infection caused by the same species of bacteria) or re-infection (re-infection caused by non-same species of bacteria) of the two groups were compared, and non-inferiority analysis was performed, and the non-inferiority threshold was set at 0.2. Results:From March 2021 to May 2022, a total of 152 rUTIs patients were enrolled in this study, including 80 patients in the experimental group, 71 patients in the intention-to-analysis set (ITT) and 66 patients in the protocol analysis set (PPS). In the control group, 72 cases met ITT in 69 cases and PPS in 67 cases. There were no significant differences in age, body mass index, marital status, duration of urinary tract infection, history of diabetes, history of previous major surgery, history of infection, and urinary SIgA between the two groups (all P>0.05). The recurrence rates of the experimental group and the control group at V5 time point were 44.78% (30/67) and 42.65% (29/68), respectively ( P=0.803) (ITT data set analysis results showed that the difference in recurrence rates between the two groups was 0.0213(95% CI-0.1460-0.1886, P=0.0048). PPS data set analysis showed that the difference of recurrence rate between the two groups was -0.0021(95%CI -0.1711-0.1670, P=0.0109), and the recurrence rate of the experimental group was not worse than that of the control group. At V2 time points, there were no significant differences in liver and kidney function indexes between test group and control group ( P>0.05). At V2 to V4 time points, urinary SIgA of test group and control group were 0.90 (0.37, 2.89) mg/L and 1.32 (0.34, 3.08) mg/L, 1.54 (0.44, 3.23) mg/L and 1.71 (0.27, 2.92) mg/L, 1.11 (0.65, 3.42) mg/L and 2.18 (0.43, 3.26) mg/L, there was no statistical significance ( P>0.05). The incidence of adverse events in the experimental group was 30.0% (24/80), including 14 cases of redness, pain and discomfort at the injection site, 5 cases of fever, 2 cases of allergic rash, and 1 case of urticaria, headache and constipation each. The incidence of adverse events in the control group was 5.6% (4/72), all of which were diarrhea, and the difference between the two groups was statistically significant ( P<0.01). No life-threatening serious adverse events occurred in both groups, and all adverse events were self-healing without additional intervention. Conclusions:Compared with fosfomycin aminotriol, Pseudomonas aeruginosa injection has the same clinical effect in preventing rUTI and has good safety.
10.Cost-effectiveness analysis of Chaiyin Granules in treatment of influenza.
Li-Man DING ; Dao-Wen YANG ; Hong-Chun ZHANG ; Xiao MA ; Zhen-Gang YAN ; Sheng-Tang ZHANG ; Wu-Zhi MA ; Wei-Ge LI ; Dong-Xing WU ; Qing-Rong JIANG
China Journal of Chinese Materia Medica 2023;48(16):4529-4535
This study aimed to evaluate the cost-effectiveness of Chaiyin Granules compared with Oseltamivir Phosphate Capsules in the treatment of influenza(exogenous wind-heat syndrome). Based on a randomized, double-blind, positive drug parallel control clinical trial, this study evaluated the pharmacoeconomics of Chaiyin Granules with cost-effectiveness analysis method. A total of 116 patients with influenza from eight hospitals(grade Ⅱ level A above) in 6 cities were selected in this study, including 78 cases in the experimental group with Chaiyin Granules and Oseltamivir Phosphate Capsules placebo, and 38 cases in the control group with Oseltamivir Phosphate Capsules and Chaiyin Granules placebo. The total cost of this study included direct medical cost, direct non-medical cost, and indirect cost. The remission time of clinical symptoms, cure time/cure rate, antipyretic onset time/complete antipyretic time, viral nucleic acid negative rate, and traditional Chinese medicine(TCM) syndrome curative effect were selected as the effect indicators for cost-effectiveness analysis. Four-quadrant diagram was used to estimate the incremental cost-effectiveness ratio. The results showed that Chaiyin Granules were not inferior to Oseltamivir Phosphate Capsules in the remission time of clinical symptoms of influenza(3.1 d vs 2.9 d, P=0.360, non-inferiority margin was 0.5 d). Compared with Oseltamivir Phosphate Capsules, Chaiyin Granules would delay the remission time of clinic symptoms of influenza for 1 d, but could save 213.9 yuan. 1 d delay in cure time could save 149.3 yuan; 1% reduction in the cure rate could save 8.2 yuan; 1 d delay in antipyretic onset time could save 295.4 yuan; 1 d delay in complete antipyretic time could save 114.3 yuan; 1% reduction in the 5-day cure rate of TCM syndrome could save 19.2 yuan. Different from other indicators, there was no statistically significant difference between two groups in the effect of negative conversion rate of viral nucleic acid, but the cost was lower and the effect was superior, and the pharmacoeconomics was not different from that of Oseltamivir Phosphate Capsules in the field of influenza treatment.
Humans
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Antipyretics/therapeutic use*
;
Antiviral Agents/therapeutic use*
;
Cost-Effectiveness Analysis
;
Influenza, Human/drug therapy*
;
Nucleic Acids/therapeutic use*
;
Oseltamivir/therapeutic use*
;
Phosphates/therapeutic use*
;
Treatment Outcome
;
Double-Blind Method

Result Analysis
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