1.Evaluation of colistin sulfate administration regimen based on PK/PD theory and Monte Carlo simulation
Yingchao MA ; Xia WU ; Yongjing WANG ; Jianjun GU ; Xiuling YANG
China Pharmacy 2025;36(4):459-463
OBJECTIVE To evaluate the therapeutic efficacy of 5 regimens of colistin sulfate for common Gram-negative bacilli infection based on pharmacokinetics (PK)/pharmacodynamics (PD) theory and Monte Carlo simulation. METHODS Minimal inhibitory concentration (MIC) data of colistin sulfate against Acinetobacter baumannii, Pseudomonas aeruginosa, Klebsiella pneumoniae, Escherichia coli and Enterobacter cloacae in 2023 were collected from the China Antimicrobial Resistance Surveillance System. Monte Carlo simulation was conducted with the ratio of the area under the concentration-time curve from 0 to 24 hours in the unbound state to the MIC (fAUC0-24 h/MIC) ≥15 as the target value, the probabilities of target attainment (PTA) of 5 regimens of colistin sulfate to achieve the target ratio were obtained at different MIC; and the expected population PTA, specifically the cumulative fraction of response (CFR), for each regimen within a specific bacterial population was further calculated, to evaluate the therapeutic efficacy of the five colistin sulfate regimens. RESULTS When bacterial MIC≤0.5 µg/mL, PTA of all colistin sulfate regimens (500 000 IU, q12 h; 500 000 IU, q8 h; 750 000 IU, q12 h; 750 000 IU, q8 h; 1 000 000 IU, q12 h) were all more than 90%. When bacterial MIC=1 µg/mL, PTA for regimen (750 000 IU, q8 h) against A. baumannii, K. pneumoniae, P. aeruginosa, E. coli and E. cloacae, and for regimen (1 000 000 IU, q12 h) against the other four bacterial species (excluding P. aeruginosa) remained above 90%. When bacterial MIC≥2 µg/mL, PTA of 5 colistin sulfate regimens were all lower than 90%. For E. coli, the CFR of only colistin sulfate regimen (500 000 IU, q12 h) was less than 90%; for K. pneumoniae, the CFR of only colistin sulfate regimen (750 000 IU, q8 h and 1 000 000 IU, q12 h) was greater than 90%; for the other three bacteria, CFR of 5 regimens were all less than 90%. CONCLUSIONS When the MIC of Gram-negative bacteria is less than 0.5 µg/mL, colistin sulfate regimen with a routine dose can be selected for treatment. When MIC was 1 µg/mL, an increase in the dosing amount or frequency is required. The empirical treatment of the other four bacterial infections excluding E. coli requires the use of off-label doses.
2.Single-incision bariatric surgery: advantages and challenges
Wenpei DONG ; Jianjun YANG ; Yan GU
Journal of Surgery Concepts & Practice 2025;30(3):202-206
Single-incision bariatric surgery, as a significant advancement in minimally invasive surgery, achieves weight loss goals through a single small incision, offering advantages such as minimal trauma, concealed scarring, and rapid postoperative recovery. The single-incision laparoscopic sleeve gastrectomy (SILSG) currently represents the most widely performed single-incision bariatric procedure globally, demonstrating weight loss efficacy and complication rates comparable to traditional multi-incision laparoscopy alongside significantly higher patient satisfaction. However, the clinical adoption of single-incision bariatric surgery still faces technical challenges with relative scarcity in robust clinical research evidence and underdeveloped standardized surgical protocols and training systems. To further establish a specialized training system and expert consensus for single-incision bariatric surgery that aligns with China's national conditions is of great significance for promoting the standardized implementation of SILSG-represented procedures.
3.Predictive value of combined application of serum inflammation-related indicators for stroke-associated pneumonia
Ruixue MA ; Jianhua JIAO ; Honghong GU ; Xiuli CAO ; Youxiang LI ; Jianjun LI
Journal of Clinical Medicine in Practice 2025;29(14):115-119
Objective To explore the predictive value of combined serum soluble hemoglobin scavenger receptor 163(sCD163),hypersensitive C-reactive protein(hs-CRP),and procalcitonin(PCT)for stroke-associated pneumonia(SAP).Methods A total of 100 patients with acute ische-mic stroke admitted to the First Hospital of Zhangjiakou from October 2021 to January 2023 were se-lected as the study subjects.According to whether they developed SPA within 7 days of admission,they were divided into SAP group(n=64)and non-SAP group(n=36).Based on pneumonia se-verity index(PSI),patients in the SAP group were further divided into mild SAP group and severe SAP group.Enzyme-linked immunosorbent assay(ELISA)was used to detect the serum levels of sCD163,hs-CRP,and PCT.The clinical data of the patients were collected and compared.Pearson's method was used to analyze the correlation between the PSI score and the serum levels of sCD163,hs-CRP,and PCT in SAP patients.Multivariate Logistic regression analysis was employed to screen for factors influencing the occurrence of SAP.Receiver operating characteristic(ROC)curve analy-sis was used to evaluate the predictive efficacy of serum sCD163,hs-CRP,and PCT for the occur-rence of SAP.Results The proportion of patients with dysphagia and the National Institutes of Health Stroke Scale(NIHSS)score in the SAP group were significantly higher than those in the non-SAP group(P<0.05).The serum levels of sCD163,hs-CRP,and PCT in the SAP group were significantly higher than those in the non-SAP group(P<0.05).The serum levels of sCD163,hs-CRP,and PCT in the severe SAP group were significantly higher than those in the mild SAP group(P<0.05).Pearson's correlation analysis showed that the PSI score was positively correlated with the serum levels of sCD163,hs-CRP and PCT in SAP patients(r=0.356,0.413,0.391,P<0.001).Logistic regression analysis revealed that serum sCD163,hs-CRP,PCT,NIHSS score,and dysphagia were all influencing factors for the occurrence of SAP(P<0.05).The areas under the curve(AUC)for predicting SAP using serum sCD163,hs-CRP,PCT and their combina-tion were 0.842,0.924,0.866 and 0.973,respectively,with sensitivities of 73.44%,84.37%,67.19%and 90.62%,and specificities of 88.89%,83.33%,97.22%and 94.44%,respectively.The predictive value of the combined detection was superior to that of the individual detection of ser-um sCD163,hs-CRP and PCT(P<0.05).Conclusion The serum levels of sCD163,hs-CRP,and PCT are elevated in SAP patients,and their changes are closely related to the severity of the disease.The combined detection of these three indicators has a high value in predicting the occur-rence of SAP and may serve as auxiliary markers for predicting early SAP.
4.Discussion on LI Dongyuan′s "deficiency of spleen and stomach qi" theory
Journal of Beijing University of Traditional Chinese Medicine 2024;47(12):1675-1680
LI Dongyuan, the founder of the tonification school, attaches great importance to the role of the spleen and stomach in the ascending and descending movement of qi in the human body. Based on years of clinical experience, LI Dongyuan proposed that regulating the spleen and stomach is fundamental to treating liver, heart, lung, and kidney diseases. This theory is a concentrated expression of his clinical approach. This provision is derived from the chapter 9 and has rich connotations. This article draws on the theory of five movements and six qi, as well as the theory of yin fire, to explain the deeper connotations of this provision. According to Dongyuan′s theories, "Should be to but not to, this is insufficient", "Unimpeded by my restrained delusions", "Born by me is insufficient because of me", and "Restrain my arrogance unimpeded", correspond to the pathogenesis of the spleen and stomach disease of the heart, kidney, lung, and liver. Simultaneously, this article also discusses the rules and treatment method of the other four zang-organ diseases in the case of spleen and stomach deficiency, providing novel insights for treating multi-zang organ diseases with spleen and stomach deficiency as the core.
5.Relationship and clinical significance between CCR2 and CRP levels and the severity of stroke associated pneumonia in stroke patients
Jianhua JIAO ; Ruixue MA ; Honghong GU ; Xiuli CAO ; Youxiang LI ; Jianjun LI
International Journal of Laboratory Medicine 2024;45(2):184-187,193
Objective To detect the serum levels of CC chemokine receptor 2(CCR2)and C-reactive pro-tein(CRP)in stroke patients,and analyze their relationship with the severity of stroke associated pneumonia and their clinical significance.Methods A total of 78 patients with stroke associated pneumonia who were di-agnosed and treated in the hospital from October 2022 to February 2023 were collected as the study group,ac-cording to the severity of pneumonia,the study group was divided into mild group(31 cases),moderate group(29 cases),and severe group(18 cases),78 stroke patients who did not develop pneumonia were included into control group.Pearson method was applied to analyze the correlation between serum CCR2 and CRP levels in stroke associated pneumonia patients.Multivariate Logistic regression was applied to analyze the factors influ-encing the occurrence of stroke associated pneumonia.Receiver operating characteristic(ROC)curve was ap-plied to analyze the diagnostic value of serum CCR2 and CRP for stroke associated pneumonia.Results The National Institute of Health stroke scale(NIHSS)score,serum CCR2,and CRP levels in the study group were obviously higher than those in the control group(P<0.05).The levels of serum CCR2 and CRP increased with the aggravation of pneumonia(P<0.05).The levels of serum CCR2 and CRP in the study group were positively correlated(r=0.799,P<0.05).NIHSS score,CCR2,and CRP levels were risk factors for stroke associated pneumonia in stroke patients(P<0.05).The area under the curve(AUC)for the diagnosis of stroke associated pneumonia using serum CCR2 and CRP alone was 0.873 and 0.888,respectively,and the AUC for the combined detection of the two was 0.936,the combined detection of the two was superior to the individual detection of serum CCR2 and CRP(Zcombination-CCR2=1.987,Zcombination-CRP=1.832,P=0.041,0.047).Conclusion Serum CCR2 and CRP are closely related to the severity of stroke associated pneumonia,and their combined detection has high diagnostic value for stroke associated pneumonia.
6.Current and predicted disease burden in middle aged and elderly population aged 55 years and above in Shenzhen, 2016-2030
Junyan XI ; Ruiqi MING ; Yijing WANG ; Yingbin FU ; Zhen ZHANG ; Jia ZHANG ; Jianjun BAI ; Yining XIANG ; Xiao LIN ; Jing GU ; Yuantao HAO ; Gang LIU
Chinese Journal of Epidemiology 2024;45(11):1550-1558
Objective:To analyze the disease burden in middle-aged and elderly population aged ≥55 in Shenzhen from 2016 to 2030 and provide evidence for the development of healthy aging strategies.Methods:The years of life lost (YLL), years lost due to disability (YLD), and the disability-adjusted life year (DALY) in this population from 2016 to 2022 were calculated. Joinpoint log-linear regression model was used to analyze the time trend. Bayesian age-period-cohort model and grey system model were used to predict YLL, YLD, and DALY in this population in 2030.Results:From 2016 to 2022, the crude DALY rate showed a transient fluctuation in age group 55-74 years, but a pronounced increase in age group ≥85 years. The proportions of YLL and YLD due to non-communicable diseases in all age groups was considerably higher than those due to communicable and nutritional diseases and injuries. In 2022, in all age groups, the YLL due to neoplasms (55-74 years old) and cardiovascular disease (≥75 years old) ranked first, and the YLD due to musculoskeletal disorder ranked first. By 2030, the causes of YLL and YLD ranking first in each age group would be remained, while the ranks of some causes would increase.Conclusions:The age specific characteristics of current and predicted disease burden differed in individuals aged ≥55 years. Therefore, it is necessary to allocate social and medical resources according to the disease burden pattern.
7.Diagnostic value of serum sFlt-1 and sCD14 for stroke-associated pneumonia
Ruixue MA ; Jianhua JIAO ; Honghong GU ; Xiuli CAO ; Youxiang LI ; Jianjun LI
International Journal of Laboratory Medicine 2024;45(11):1338-1342,1347
Objective To investigate the diagnostic value of serum soluble fms-like tyrosine kinase 1(sFlt-1)and soluble differentiation cluster 14(sCD14)in stroke-associated pneumonia(SAP).Methods A total of 67 SAP patients admitted to the hospital from March 2022 to January 2023 were selected as the study group,and 50 stroke patients without pneumonia during the same period were selected as the control group.Enzyme-linked immunosorbent assay was used to measure serum sFlt-1 and sCD14 levels.Pearson correlation analysis was used to analyze the correlation between serum sFlt-1,sCD14 levels and clinical data.Multivariate Logistic regression was used to analyze the influencing factors of SAP in patients with stroke.Receiver operating char-acteristic(ROC)curve was used to analyze the diagnostic value of serum sFlt-1 and sCD14 levels in predicting SAP in patients with stroke.Results The serum levels of sFlt-1 and sCD14 in SAP patients were higher than those in stroke patients without pneumonia and stroke patients with pneumonia alone(P<0.05).SAP in stroke patients was associated with age,atrial fibrillation,heart failure,aspiration,dysphagia,brain stem stroke,proton pump inhibitor use,fever,cough,dyspnea,low-density lipoprotein cholesterol,procalcitonin(PCT),C-reactive protein,white blood cell count,national institutes of health stroke scale(NIHSS)score,clinical pulmonary infection(CPIS)score(P<0.05).Correlation analysis showed that serum sFlt-1 level was positively correlated with sCD14(r=0.439,P<0.001),and serum sFlt-1 and sCD14 levels were positively correlated with NIHSS score and CPIS score(P<0.05).Multivariate Logistic regression analysis showed that sFlt-1,sCD14,proton pump inhibitor use,PCT,dysphagia,and age were the influencing factors of SAP in stroke patients(P<0.05).ROC curve results showed that the area under the curve of serum sFlt-1 and sCD14 combined to evaluate SAP in stroke patients was higher than that of single detection(ZsFlt-1-combined=2.194,P=0.028,ZscD14-combined=2.310,P=0.002).Conclusion The serum levels of sFlt-1 and sCD14 are in-creased in SAP patients,and the combination of the two has a good diagnostic value for predicting the occur-rence of SAP.
8.Application and future development of artificial intelligence in hernia and abdominal wall surgery
Xiaoyu PENG ; Hekai SHI ; Zhicheng SONG ; Jianjun YANG ; Yan GU
Chinese Journal of General Surgery 2024;33(10):1580-1587
In recent years,the emergence of technologies such as machine learning,natural language processing,artificial neural networks,and computer vision has provided essential means for the rapid development of artificial intelligence(AI).Compared to the extensive application of AI in fields like urology and cardiothoracic surgery,the use of AI in hernia and abdominal wall surgery remains very limited.Currently,AI in hernia and abdominal wall surgery is mainly applied in preoperative risk factor analysis,disease-assisted diagnosis,surgical complexity prediction,imaging analysis,robotic/non-robotic intraoperative assistance,postoperative complication and recurrence prediction,as well as education,training,and management.These applications hold great importance for improving the diagnosis and treatment of hernia and abdominal wall diseases.This paper summarizes the current application scenarios of AI in hernia and abdominal wall surgery,reviews the status of Al applications in this field at home and abroad,and discusses future development directions,aiming to provide a reference for advancing hernia and abdominal wall surgery.
9.Supplementing rehabilitation training with botulinum neurotoxin improves outcomes for Parkinson′s disease patients with striatal foot deformity
Xue LI ; Liuyi LI ; Shucheng XING ; Siyuan CHEN ; Shaopu WU ; Qi GU ; Dongsheng LI ; Jianjun MA
Chinese Journal of Physical Medicine and Rehabilitation 2023;45(2):146-150
Objective:To observe any therapeutic effect of combining botulinum toxin type A (BTX-A) with rehabilitation training in treating Parkinson′s disease (PD) patients with striatal foot deformity (SFD).Methods:A total of 68 PD patients with SFD were randomly divided into a control group and a treatment group. Both groups were given routine medication with pramipexole and dopamine receptor agonists and received lower limb rehabilitation training, including passive activity training, strength training and walking training. The treatment group was additionally injected with BTX-A. Sciatic pain was quantified using a visual analogue scale. The Unified Parkinson′s Disease Rating Scale-lower limb motor lower limb motor function (UPDRS-LLM) scale, the Berg balance scale and the modified Barthel index were applied to test all of the participants before the experiment and on the 7th, 14th and 30th day of the treatment.Results:The average scores of the control group on all of measures at were significantly better than those of the control group at the same time points, and by the 14th and 30th day had improved significantly compared with those before treatment.Conclusion:Supplementing rehabilitation training with BTX-A can significantly improve foot deformity and relieve the muscle tension and spastic pain of PD patients with SFD, promoting the motor functioning of their lower limbs, their balance and their performance in the activities of daily living.
10.Supplementing transcranial magnetic stimulation with intermittent resistance training improves the recovery of motor function in Parkinson′s disease
Dongsheng LI ; Qi GU ; Xue LI ; Xiaoxue SHI ; Jianjun MA ; Yujuan MA ; Haiyang YU
Chinese Journal of Physical Medicine and Rehabilitation 2023;45(4):307-311
Objective:To explore any effect of supplementing low-frequency repeated transcranial magnetic stimulation (rTMS) with intermittent resistance training on muscle tone and the recovery of motor function among persons with Parkinson′s disease (PD).Methods:A total of 104 PD patients were randomly divided into an observation group and a control group, each of 52. Both groups were treated with conventional drugs and low-frequency rTMS, while the observation group was additionally provided with intermittent resistance training for 8 weeks. Before and after the intervention, the motor functioning of both groups was evaluated using unified Parkinson′s disease rating scale-III (UPDRS-III) and the Berg Balance Scale (BBS). Limb muscle tension was quantified using the modified Ashworth scale (MAS). The subjects′ psychological states were quantified using the exercise self-efficacy scale (ESE), and the modified Barthel index (MBI) was applied to evaluate their ability in the activities of daily living. A 3D motion processing system collected and analyzed data describing each subject′s gait kinematics.Results:After the intervention, significantly greater average improvement was observed in all of the outcome measures among the observation group compared with the control group.Conclusion:Combining intermittent resistance training with low-frequency rTMS can significantly reduce muscle tone and improve the motor functioning of PD patients. The combination is more effective than low-frequency rTMS alone.


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