1.Identification of unknown pollutants in drinking water based on solid-phase extraction and supramolecular solvent extraction
Zixin QIAN ; Yuhang CHEN ; Chao FENG ; Yuanjie LIN ; Qian XU ; Ziwei LIANG ; Xinyu WANG ; Dasheng LU ; Ping XIAO ; Zhijun ZHOU
Journal of Environmental and Occupational Medicine 2025;42(7):854-861
Background With the progression of industrialization, an increasing number of emerging contaminants are entering aquatic environments, posing significant threats to the safety of drinking water. Therefore, establishing a system for identifying unknown hazardous factors and implementing safety warning mechanisms for drinking water is of paramount importance. Among these efforts, non-target screening plays a critical role, but its effectiveness is largely constrained by the scope of coverage of sample pre-treatment methods. Objective To integrate modern chromatography/mass spectrometry techniques with advanced data mining methods to develop a non-discriminatory sample pre-treatment method for comprehensive enrichment of unknown contaminants in drinking water, laying a technical foundation for the discovery and identification of unknown organic hazardous factors in drinking water. Methods A non-discriminatory pre-treatment method based on supramolecular and solid-phase extraction was developed. The final target compounds including 333 pesticides, 194 pharmaceuticals and personal care products (PPCPs), and 59 per- and polyfluoroalkyl substances (PFASs) were used for optimizing the pre-treatment method, confirming its coverage. The impacts of different eluents on the absolute recovery rates of target compounds were compared to select the conditions with the highest recovery for sample pre-treatment. The effects of different supramolecular solvents and salt concentrations on target compound recovery were also evaluated to determine the most suitable solvent and salt concentration. Results The solid-phase extraction elution solvents, supramolecular extraction solvents, and salt concentrations were optimized based on the target compound recovery rates. The optimal recovery conditions were achieved using 2 mL methanol, 2 mL methanol (containing 1% formic acid), 2 mL ethyl acetate, 2 mL dichloromethane, hexanediol supramolecular solvent, and 426 mg salt. The detection method developed based on these conditions showed a good linear relationship for all target compounds in the range of 0.1-100.0 ng·mL−1, with R² > 0.99. The method’s limit of detection ranged from 0.01 ng−1 to 0.95 ng−1, and 95% of target compounds were recovered in the range of 20%-120%, with relative standard deviation (RSD) less than 30%, indicating good precision. Conclusion The combined pre-treatment method of solid-phase extraction and supramolecular solvent extraction can effectively enrich contaminants in drinking water across low, medium, and high polarities, enabling broad-spectrum enrichment of diverse trace contaminants in drinking water. It provides technical support for broad-spectrum, high-throughput screening and identification of organic pollutants in drinking water, and also serves as a reference for establishing urban drinking water public safety warning systems.
2.Key questions of translational research on international standards of acupuncture-moxibustion techniques: an example from the WFAS Technical Benchmark of Acupuncture and Moxibustion: General Rules for Drafting.
Shuo CUI ; Jingjing WANG ; Zhongjie CHEN ; Jin HUO ; Jing HU ; Ziwei SONG ; Yaping LIU ; Wenqian MA ; Qi GAO ; Zhongchao WU
Chinese Acupuncture & Moxibustion 2025;45(8):1159-1165
OBJECTIVE:
To provide the experience and demonstration for the transformation of acupuncture-moxibustion techniques standards from Chinese national standards to international standards.
METHODS:
Questionnaire research, literature research, semi-structured interviews and expert consultation were used.
RESULTS:
The safety of acupuncture-moxibustion techniques was evaluated through literature research, and based on the results of the questionnaire survey, expert interviews, and expert consultation, 11 main bodies and structure of the former Chinese national standard, Technical Benchmark of Acupuncture and Moxibustion: General Rules for Drafting, were adjusted and optimized in accordance with the requirements of international standard (including the language, normative references, purpose, scope, applicable environment, target population, work team, terms and definitions, general principles and basic requirements, structural elements and text structure, and compilation process); and the first international standard, World Federation of Acupuncture-Moxibustion Societis (WFAS) Technical Benchmark of Acupuncture and Moxibustion: General Rules for Drafting was formulated to specify the general rules for drafting.
CONCLUSION
The 3 key questions, "international compatibility", "technical operability" and "safety" should be solved technically on the basis of explicit international requirements. It is the core technical issue during transforming the national standards of technical benchmark of acupuncture and moxibustion into international standards.
Moxibustion/methods*
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Acupuncture Therapy/methods*
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Humans
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Translational Research, Biomedical/standards*
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Surveys and Questionnaires
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China
;
Benchmarking/standards*
3.Omics in IgG4-related disease.
Shaozhe CAI ; Yu CHEN ; Ziwei HU ; Shengyan LIN ; Rongfen GAO ; Bingxia MING ; Jixin ZHONG ; Wei SUN ; Qian CHEN ; John H STONE ; Lingli DONG
Chinese Medical Journal 2025;138(14):1665-1675
Research on IgG4-related disease (IgG4-RD), an autoimmune condition recognized to be a unique disease entity only two decades ago, has processed from describing patients' symptoms and signs to summarizing its critical pathological features, and further to investigating key pathogenic mechanisms. Challenges in gaining a better understanding of the disease, however, stem from its relative rarity-potentially attributed to underrecognition-and the absence of ideal experimental animal models. Recently, with the development of various high-throughput techniques, "omics" studies at different levels (particularly the single-cell omics) have shown promise in providing detailed molecular features of IgG4-RD. While, the application of omics approaches in IgG4-RD is still at an early stage. In this paper, we review the current progress of omics research in IgG4-RD and discuss the value of machine learning methods in analyzing the data with high dimensionality.
Humans
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Immunoglobulin G4-Related Disease/metabolism*
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Immunoglobulin G/metabolism*
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Machine Learning
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Animals
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Proteomics/methods*
4.Diagnosis and treatment of 131 adult patients with bronchopulmonary sequestration: A retrospective analysis
Xiaobo GU ; Qiankun CHEN ; Ziwei WAN ; Cong YE ; Yuming ZHU ; Shijian DU
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2024;31(01):105-110
Objective To explore the safety and feasibility of uni-portal video-assisted thoracic surgery (VATS) for the treatment of bronchopulmonary sequestration (BPS). Methods The clinical data of BPS patients with surgical resection in Shanghai Pulmonary Hospital from February 2010 to June 2021 were reviewed. The patients were divided into a VATS group and a thoracotomy group according to the operation method. The operation time, intraoperative blood loss, hospital stay and postoperative complication rate were compared between the two groups. The VATS group was subdivided into a uni-portal VATS group and a multi-portal VATS group for subgroup analysis. Results Finally 131 patients were enrolled, including 62 males and 69 females with an average age of 39.3±13.2 years. There were 103 patients in the VATS group and 28 patients in the thoracotomy group. A total of 104 patients were diagnosed with left lower BPS, 26 with right lower BPS and 1 with bilateral lower BPS. The main symptom was cough (88 patients, 67.2%). There were 119 patients diagnosed by thoracic enhanced CT before operation. Compared with the thoracotomy group, the operation time was not statistically different (P=0.717), but the blood loss was less, the rate of postoperative complication was lower and hospital stay was shorter in the VATS group (P<0.05). The rate of conversion to open surgery in the uni-portal VATS group and multi-portal VATS group was 11.8% and 13.5%, respectively. Meanwhile, patients in the uni-portal VATS group had shorter operation time and postoperative hospital stay, less blood loss and lower postoperative complication rate than those in the multi-portal VATS group (P<0.05). Conclusion In order to improve the rate of diagnosis, the lung enhanced CT scan should be selected as an optimal noninvasive method in adult suspected patients (especially those with solid cystic and solid lesions in the lower lobe). Uni-portal VATS is a safe and feasible method for BPS which can be widely promoted.
5.Application of Mendelian randomization analysis in exploring the etiology of nonalcoholic fatty liver disease
Ziwei GUO ; Qingjuan WU ; Yongan YE ; Lanyu CHEN ; Wenliang LYU
Journal of Clinical Hepatology 2024;40(3):589-593
Nonalcoholic fatty liver disease (NAFLD) is an abnormal lipid metabolic disorder of the liver characterized by accumulation of a large amount of lipids in the liver, and it is currently the most common liver disease around the world. Mendelian randomization (MR) incorporates genomic data into traditional epidemiological study designs to infer the causal relationship between exposure factors and disease risk. In recent years, MR has been widely used in studies on inference of the etiology of NAFLD. This article systematically summarizes the advances in the application of MR in NAFLD research, so as to provide new ideas for understanding the nature of the disease and scientific interventions.
6.Evidence-based practice for the prevention and care of ocular complications in ICU patients
Lizhu WANG ; Yuaner CHEN ; Qian LI ; Yaling HU ; Haifei LU ; Yan XIANG ; Ziwei WANG ; Xuefeng QI
Chinese Journal of Nursing 2024;59(7):781-788
Objective To develop an evidence-based practice program for ICU eye care and evaluate its application effect using Stetler model of research utilization.Methods The systematic search was carried out in domestic and foreign guid elines,systematic reviews,evidence summaries,expert consensuses on eye care for ICU patients.The quality of the included literature was evaluated and the evidence was summarized.The evidence based on expert advice,clinical context and stakeholder opinions was screened.According to Stetler model of research utilization,the evidence translation/application was formulated from 3 aspects,including method,level and type of evidence application,and the evidence translation was implemented using a stepwise trial design.Five ICUs in a tertiary hospital in Zhejiang Province were selected,and the order of enrollment of each ICU was determined by computer-generated random numbers from April to september,2022.In the first month,all ICUs were in pre-evidence-based practice period,and in the second month,an ICU was trained and entered the evidence-based practice period.Until the 6th month,all ICUs entered the evidence-based practice period.Then the rate of ocular symptoms and implementation rate of eye care measures were compared before and after EBP.Results A total of 1 540 patients were included.With regard to the implementation rate of eye care measures,the rate of lubricant use and suspected ocular infection management in patients at high risk for ocular complications in evidence-based practice period was significantly higher compared with pre-evidence-based practice period(P<0.001),and no statistically significant difference was found in the rate of eyelid closure.The incidence of conjunctival exposure,subconjunctival hemorrhage,conjunctival congestion,and ocular discharge in non-neurology critical care patients decreased compared with pre-evidence-based practice period(P<0.05),and the incidence of conjunctival edema and conjunctival congestion in NICU patients decreased compared with pre-evidence-based practice period as the intervention continued(P<0.001).Conclusion Evidence-based practice in eye care for ICU patients using Stetler model of research utilization can standardize the practice of eye care for ICU patients and improve the quality of care.
7.Efficacy and safety of Compound danshen preparations combined with chemical drugs for peptic ulcer:a meta-analysis
Yakun ZHAN ; Jin ZENG ; Ziwei HU ; Juliang CHEN
China Pharmacy 2024;35(23):2915-2922
OBJECTIVE To systematically evaluate the efficacy and safety of compound danshen preparations combined with conventional chemical drug treatment for peptic ulcer (PU), providing evidence-based guidance for clinical treatment of PU. METHODS Related clinical randomized controlled trials were collected from CNKI, VIP, Wangfang data, CBM, PubMed, Embase and Web of Science from their establishment date to September 30, 2023. The qualities of included literature were evaluated by Cochrane Systematically Evaluator Manual 5.1.0. Meta-analysis, sensitivity analysis and publication bias analysis were conducted with RevMan 5.3 software. RESULTS Totally 26 pieces of literature were included with total of 2 451 cases, including 1 243 cases in trial group (compound danshen preparations+conventional chemical drug treatment) and 1 208 cases in the control group (conventional chemical drug treatment). In terms of effectiveness, trial group had significant advantages in ulcer healing rate [OR=4.66, 95%CI (3.53, 6.15), P<0.000 01], HP eradication rate [OR=1.90, 95%CI (1.12, 3.22), P=0.02],and pain relief rate [OR=3.91, 95%CI (2.31, 6.61), P<0.000 01] than control group, while ulcer recurrence rate [OR=0.22, 95%CI (0.15, 0.32), P<0.000 01] and serum levels of pepsinogen (PG)Ⅰ [SMD=-1.92, 95%CI (-2.25, -1.58), P<0.000 01], PGⅡ [SMD=-3.88, 95%CI (-4.35, -3.41), P<0.000 01] and G-17 [SMD=-3.44, 95%CI (-3.87, -3.00), P<0.000 01] were significantly lower than control group. In terms of safety, the main adverse reactions were abdominal discomfort, headache, dizziness, dry mouth, facial flushing, etc. There was no significant difference in the incidence of adverse reactionsbetween the two groups [OR=1.08, 95%CI (0.75, 1.54), P=0.69]. Subgroup analysis of ulcer healing rate and HP eradication rate based on dosage form showed that HP eradication rate in the compound danshen pellet group was not significantly improved compared to the control group, with consistent results for the remaining outcomes. The sensitivity analysis showed that above results were stable. There was less possibility of publication bias in this study. CONCLUSIONS Compared with conventional chemical drug treatment alone, the combination of compound danshen preparations can effectively improve the clinical symptoms of PU patients with similar safety.
8.Efficacy of cutaneous ureterostomy-flap embedding in radical cystectomy plus urinary diversion in 10 cases
Xufeng YU ; Meimian HUA ; Shuxiong ZENG ; Qing CHEN ; Ziwei WANG ; Yidie YING ; Maoyu WANG ; Chen ZHANG ; Yi WANG ; Chuanliang XU
Journal of Modern Urology 2024;29(12):1099-1103
[Objective] To explore the clinical application of cutaneous ureterostomy-flap embedding in radical cystectomy plus urinary diversion. [Methods] The clinical data of 10 patients with bladder cancer treated with this method in our hospital during Feb.and May 2023 were involved.Cutaneous ureterostomy-flap embedding was used in urinary diversion.The stoma-free rate and stenosis rate of stomas within 1 year postoperatively, differences in renal function indicators 1 day before operation and 1 year after operation, urinary diversion-related complications within 6 months postoperatively, including hydronephrosis, urinary tract infections, renal stones were analyzed. [Results] All surgeries were successfully completed.At 1 year postoperatively, renal function indicators showed no significant difference compared to preoperative levels (P>0.05). At 6 months postoperatively, 1 patient developed renal stones, successfully treated with surgery; 2 had urinary tract infection, recovered after antibiotic treatment; 2 had mild unilateral hydronephrosis, alleviated with conservative management.At 1 year postoperatively, the catheter-free rate was 80%(8/10), with no worsening of hydronephrosis or occurrence of ureteral obstruction, and the stent placement duration ranged from 97 to 211 days, average (151.63±42.47) days.The ureteral stent was not removed in 2 patients within 1 year, so the stoma stenosis rate was 20%(2/10). [Conclusion] The application of flap embedding in urinary diversion following radical cystectomy is a simple and safe procedure, with few postoperative complications, high success rate of stent removal, and overall favorable outcomes.
9.Expert Consensus of Multidisciplinary Diagnosis and Treatment for Paroxysmal Nocturnal Hemoglobinuria(2024)
Miao CHEN ; Chen YANG ; Ziwei LIU ; Wei CAO ; Bo ZHANG ; Xin LIU ; Jingnan LI ; Wei LIU ; Jie PAN ; Jian WANG ; Yuehong ZHENG ; Yuexin CHEN ; Fangda LI ; Shunda DU ; Cong NING ; Limeng CHEN ; Cai YUE ; Jun NI ; Min PENG ; Xiaoxiao GUO ; Tao WANG ; Hongjun LI ; Rongrong LI ; Tong WU ; Bing HAN ; Shuyang ZHANG ; MULTIDISCIPLINE COLLABORATION GROUP ON RARE DISEASE AT PEKING UNION MEDICAL COLLEGE HOSPITAL
Medical Journal of Peking Union Medical College Hospital 2024;15(5):1011-1028
Paroxysmal nocturnal hemoglobinuria (PNH) is an acquired clonal hematopoietic stem cell disease caused by abnormal expression of glycosylphosphatidylinositol (GPI) on the cell membrane due to mutations in the phosphatidylinositol glycan class A(PIGA) gene. It is commonly characterized by intravascular hemolysis, repeated thrombosis, and bone marrow failure, as well as multiple systemic involvement symptoms such as renal dysfunction, pulmonary hypertension, swallowing difficulties, chest pain, abdominal pain, and erectile dysfunction. Due to the rarity of PNH and its strong heterogeneity in clinical manifestations, multidisciplinary collaboration is often required for diagnosis and treatment. Peking Union Medical College Hospital, relying on the rare disease diagnosis and treatment platform, has invited multidisciplinary clinical experts to form a unified opinion on the diagnosis and treatment of PNH, and formulated the
10.The combined application of oligoclonal bands in cerebrospinal fluid and IgG intrathecal synthesis indicators and biochemical markers in the diagnosis of multiple sclerosis
Kelin CHEN ; Junchao JIANG ; Wencan JIANG ; Lijuan WANG ; Siwen LI ; Ziwei LIU ; Yuyu GU ; Guojun ZHANG
Chinese Journal of Preventive Medicine 2024;58(8):1171-1176
Objective:To establish and verify a diagnostic model for distinguishing multiple sclerosis (MS) from other neurological diseases with similar symptoms by usingcerebrospinal fluid oligoclonal band (CSF-OCB)combined with IgG intrathecal synthesis indicators and biochemical markers.Methods:Multiple sclerosis (MS) patients admitted to the Neurology Department of Beijing Tiantan Hospital affiliated with Capital Medical University from January 2014 to December 2022 were selected as the case group, while patients with similar neurological symptoms were selected as the control group. Using the case-control study design, a retrospective analysis was conducted on the detection of age, gender, oligoclonal bands in cerebrospinal fluid, IgG intrathecal synthesis indicators and biochemical indicators for all study subjects. The differential diagnosis model was determined by the multiple logistic regression analysis, and the receiver operating characteristic (ROC) curve was used to analyze the diagnostic efficiency of the differential diagnosis model for neurological diseases with similar symptoms to MS and other conditions.Results:This study included 167 patients in the case group and 335 patients in the control group, of which 128 patients in the case group and 265 patients in the control group were used to construct the model, and 39 patients in the case group and 70 patients in the control group were used for model validation. The differential diagnostic model constructed by a multivariate logistic regression model was Y=0.871×CSF-OCB-0.051×CSFprotein-0.231×CSFchloride+1.183×gender-0.036×LDH+35.770. The model showed that the area under the curve, sensitivity and specificity were respectively 0.916, 87.3% and 87.6%. The Delong test results showed that the diagnostic efficacy of the model was significantly different from OCB, IgG intrathecal synthesis indicators, and OCB combined with IgG intrathecal synthesis indicators ( P<0.05). The new model validation showed that the actual diagnostic consistency rate for the MS group was 84.6%, while the actual diagnostic consistency rate for the control group was 90.0%. Conclusion:This study combines OCB, IgG intrathecal synthesis indicators, and biochemical indicators to establish a diagnostic prediction model for neurological diseases with similar clinical symptoms in MS. This model may have good differential diagnostic value and can better assist clinical diagnosis in the early stages of disease progression in MS patients.

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