1.Surveillance of Oncomelania hupensis snails following interruption of schistosomiasis transmission in Yunnan Province
Siqi NING ; Yi DONG ; Chunhong DU ; Lifang WANG ; Yun ZHANG ; Yuhe HE ; Hua JIANG ; Jiayu SUN ; Chunqiong CHEN ; Jiaqi YAN ; Jihua ZHOU ; Zongya ZHANG ; Hongqiong WANG ; Meifen SHEN ; Jing SONG
Chinese Journal of Schistosomiasis Control 2026;38(2):200-206
Objective To investigate the distribution characteristics of Oncomelania hupensis snails in Yunnan Province fol-lowing interruption of schistosomiasis transmission, so as to provide the evidence for assessing the risk of schistosomiasis transmission and scientifically formulating the schistosomiasis surveillance program. Methods According to the requirements of the National Schistosomiasis Surveillance Scheme (2020 Edition), O. hupensis snail surveillance data were collected from 18 schistosomiasis-endemic counties (cities, districts) in Yunnan Province from 2020 to 2024, including area of snail survey, area of snail habitats, area of re-emerging snail habitats, number of frames surveyed, number of frames with O. hupensis snails, number of O. hupensis snails captured, and number of living snails, and the occurrence of frames with snails and mean density of living snails were calculated. Changes in snail status over the 5-year period from 2020 to 2024 and the differences in snail distributions specified by epidemic intensity, environmental type, and vegetation type were analyzed. Results The areas of snail survey increased from 1 727.96 hm2 in 2020 to 3 894.45 hm2 in 2024 (peak) across 18 schistosomiasis-endemic counties (cities, districts) in Yunnan Province during the period from 2020 through 2024. The areas of snail habitats increased from 70.36 hm2 in 2020 to a peak in 2023 (172.04 hm2), followed by a reduction to 132.36 hm2 in 2024, and the areas of re-emerging snail habitats increased from 42.71 hm2 in 2020 to a peak in 2022 (78.43 hm2), followed by a reduction to 40.21 hm2 in 2024. The occurrence of frames with snails and mean density of living snails increased from 1.24% (3 025/244 404) and (0.033 2 ± 0.038 7) snails/0.1 m2 in 2020 to peaks at 2.03% (6 231/307 563) and (0.066 9 ± 0.068 4) snails/0.1 m2 in 2023, followed by reductions to 1.04% (5 829/559 941) and (0.032 6 ± 0.057 7) snails/0.1 m2 in 2024, respectively. There was a significant difference in the occurrence of frames with snails over the 5-year study period (χ2 = 1 962.95, P < 0.05), and the occurrence of frames with snails reduced by 48.71% in 2024 relative to in 2023 (χ2 = 1 411.05, P < 0.005); however, there was no significant difference in the mean density of living snails over the 5 years (H = 5.310, P > 0.05). There were significant differences in the occurrence of frames with snails (χ2 = 481.27, P < 0.05) and mean density of living snails (H = 6.872, P < 0.05) in schistosomiasis-endemic areas with different epidemic intensities. The occurrence of frames with snails (χ2 = 25.32 and 38.70, both P values < 0.017) and mean density of living snails (Z = 28.55 and 49.96, both P values < 0.017) were higher in schistosomiasis transmission-interrupted and eliminated areas with snails than in schistosomiasis-eliminated areas without snails, and the occurrence of frames with snails (χ2 = 453.54, P < 0.017) and mean density of living snails (Z = −56.97, P < 0.017) were higher in schistosomiasis-eliminated areas with snails than in schistosomiasis transmission-interrupted areas with snails. O. hupensis snails were mainly distributed in paddy fields, dry farmlands and ditches; however, the occurrence of frames with snails (13.40%, 424/3 164) and mean density of living snails [(0.252 8 ± 0.158 7) snails/0.1 m2] were higher in ponds/weirs than in other types of environments (both P values < 0.05). Rice, dry farmland crops and weeds were main vegetations in which O. hupensis snails were distributed, and the occurrence of frames with snails (2.29%, 7 111/310 140) and mean density of living snails [(0.072 3 ± 0.018 9) snails/0.1 m2] were higher in weeds than in other types of environments (both P values < 0.05). Conclusions O. hupensis snails have been effectively controlled in Yunnan Province following implementation of integrated schistosomiasis control measures; however, there are still risk factors for schistosomiasis transmission, including reduced attention to schistosomiasis control and snail re-emergence. Improved control efforts and surveillance system construction and timely identification of risk factors of snail status and timely management are recommended to ensure the achievement of the target of schistosomiasis elimination as scheduled.
2.Genetic analysis and reproductive intervention for 46 Chinese pedigrees affected with Hereditary multiple exostoses.
Lilan SU ; Xiao HU ; Jing DAI ; Zhengxing WAN ; Duo YI ; Shuangfei LI ; Liang HU ; Yueqiu TAN ; Fei GONG ; Ge LIN ; Guangxiu LU ; Qianjun ZHANG ; Juan DU ; Wenbin HE
Chinese Journal of Medical Genetics 2026;43(4):253-258
OBJECTIVE:
To explore the genetic etiology of 46 Chinese pedigrees affected with Hereditary multiple exostoses (HME) and provide genetic counseling and reproductive intervention.
METHODS:
Whole-exome sequencing and Sanger sequencing were carried out on 87 patients from the 46 pedigrees to analyze the variants of EXT1 and EXT2 genes. Pathogenicity of the variants was assessed based on the guidelines from the American College of Medical Genetics and Genomics and Association for Molecular Pathology (ACMG/AMP). Prenatal diagnosis and preimplantation genetic testing (PGT) were provided for couples with identified pathogenic mutations. This study was approved by the Medical Ethics Committee of the hospital (Ethics No.: LL-SC-SG-2014-010).
RESULTS:
In total 17 and 22 pathogenic variants were respectively identified in the EXT1 and EXT2 genes, among which 5 EXT1 and 12 EXT2 variants were unreported previously. Three patients with no family history were found to harbor de novo variants of the EXT1 gene. Twenty nine couples had opted for PGT or underwent prenatal diagnosis following natural conception, and 17 healthy babies were born.
CONCLUSION
This study has clarified the genetic etiology of 45 HME pedigrees and identified 17 novel variants, which has enriched the mutational spectrum of the EXT1 and EXT2 genes. Reproductive intervention through PGT and prenatal diagnosis have prevented the recurrence of HME in these families.
Humans
;
Female
;
Male
;
Pedigree
;
Exostoses, Multiple Hereditary/diagnosis*
;
N-Acetylglucosaminyltransferases/genetics*
;
Adult
;
Exostosin 1
;
Asian People/genetics*
;
Genetic Testing
;
Exostosin 2
;
Mutation
;
China
;
Prenatal Diagnosis
;
Pregnancy
;
Genetic Counseling
;
Preimplantation Diagnosis
;
Exome Sequencing
;
East Asian People
3.Clinical Observation on Prevention of Recurrence of Common Bile Duct Stones After ERCP with Yuyin Lidan Granules
Xiao WANG ; Yong FANG ; Cong HE ; Jiali ZHANG ; Meng YU ; Jing KONG ; Yi JIANG ; Chuanqi CHENG ; Xiaosu WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(4):159-166
ObjectiveTo observe the clinical efficacy and safety of Yuyin Lidan granules (YYLD) in preventing the recurrence of common bile duct stones (CBDS) in patients with liver and gallbladder dampness-heat syndrome following endoscopic retrograde cholangiopancreatography (ERCP). MethodsThis randomized, parallel, controlled trial enrolled postoperative CBDS-ERCP patients who met the inclusion and exclusion criteria. Sixty-four patients were randomly assigned to an observation group or a control group, with 32 cases in each. Both groups received conventional Western medical treatment after ERCP, while the observation group additionally received YYLD for 8 weeks. The follow-up period lasted for 1 year. The efficacy indicators included bile bilirubin levels, traditional Chinese medicine (TCM) syndrome scores, clinical efficacy rate, pancreatitis and inflammation markers, postoperative liver function, and CBDS recurrence rate at 1-year follow-up, which were used to jointly evaluate the clinical efficacy and safety of both groups. ResultsA total of 56 patients completed the study and were included in the final analysis, i.e., 29 in the observation group and 27 in the control group. Baseline characteristics were comparable between the two groups. Compared with pre-treatment and with the control group after treatment, the bile bilirubin level in the observation group significantly decreased (P<0.05). After treatment, the clinical cure and marked improvement rates were higher in the observation group than in the control group, showing a statistically significant difference in overall clinical efficacy (P<0.05). Compared with pre-treatment, the primary and secondary symptoms in the observation group, as well as the primary symptom and the secondary symptom of nausea and vomiting in the control group (weeks 4 and 8), were significantly reduced (P<0.05). Compared with the control group after treatment, the observation group showed significant reductions in the primary symptom of loose stools/constipation (day 5 and week 4) and in three secondary symptoms, i.e., bitter taste and sticky dry mouth, abdominal distension and poor appetite (throughout the treatment period), and general heaviness and fatigue (day 5 and week 4), with statistical differences (P<0.05). Compared with pre-treatment, both groups showed decreased lipase and urinary amylase levels (P<0.05). However, no significant between-group differences were observed in pancreatitis or inflammation-related indices after treatment. Compared with pre-treatment, all liver function indicators in the observation group and alanine aminotransferase ( ALT ), γ-glutamyl transferase ( γ-GT ), alkaline phosphatase (ALP), and conjugated bilirubin in the control group significantly decreased at weeks 4 and 8 (P<0.05). Compared with the control group after treatment, only serum total bilirubin and unconjugated bilirubin were significantly reduced in the observation group during the treatment period (P<0.05). ConclusionYYLD combined with conventional Western medical treatment can effectively regulate bilirubin metabolism (in bile and serum), improve TCM clinical symptoms, and prevent CBDS recurrence after ERCP in patients with liver and gallbladder dampness-heat syndrome. This regimen is safe and effective and is worthy of further clinical research and promotion.
4.Discussion on Pathogenesis and Treatment of Esophageal Precancerous Lesions from the Perspective of "Turbidity Damaging the Clear and Harmonious"
Cong HE ; Tingting XU ; Yi WANG ; Jing KONG ; Xiao WANG ; Xiaosu WANG ; Shumiao FAN ; Shengliang ZHU ; Bingduo ZHOU
Journal of Traditional Chinese Medicine 2026;67(13):1397-1402
It is considered that "turbid pathogen damaging the clear, and the loss of clarity and harmony regulation" is the core pathogenesis of esophageal precancerous lesions, with turbid pathogen persisting throughout the disease course. Turbid pathogen encompasses qi turbidity, phlegm turbidity, stasis turbidity, and toxin turbidity, closely related to dietary indiscretion, emotional disharmony, spleen-stomach deficiency, and kidney deficiency failing to consolidate. Turbid pathogen undergoes a dynamic evolution process of qi constraint generating turbid→ phlegm-stasis transforming into toxin→turbidity toxin harming the healthy qi, corresponding to the pathological alterations of hypoxia, inflammation and immunosuppression within the tumor microenvironment. The overall therapeutic principle is to remove turbidity and restore clarity. In the early stage, targeting the hypoxic tumor microenvironment, the suggested treatment method is opening constraint and dispersing the block, regulating qi and remove turbidity, with emphasis on soothing liver and regulating stomach, raising the clear and directing the turbid downward. In the middle stage, targeting inflammatory microenvironment, the treatment aims to clear toxin and dissipate nodules, resolve stasis and eliminate turbid, emphasizing phlegm-stasis elimination, turbid-toxin resolution, and concurrent stomach qi protection. In the late stage, corresponding to immunosuppressive microenvironment, the method of boosting qi, nourishing yin, reinforcing healthy qi, and eliminating turbidity can be used, with focus on spleen-stomach tonification, kidney essence replenishment, and healthy qi reinforcement to expel pathogenic factors.
5.Clinical Efficacy of Yishen Jiangtang Decoction Combined with Conventional Western Medicine Treatment for Diabetic Kidney Disease with Pattern of Qi-Yin Deficiency Combined with Dampness-heat and Blood Stasis
Yunjie YANG ; Yasheng DENG ; Kaiying HE ; Qi ZHANG ; Yongxin YU ; Yaqing RUAN ; Zhuang HAN ; Qiwei CHEN ; Yi WEI ; Qiu CHEN ; Jing WU ; Mingqian JIANG ; Shiwei RUAN ; Jianting WANG ; Yuliang QIU ; Lixiang ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(21):157-167
ObjectiveTo observe the clinical efficacy and safety of Yishen Jiangtang decoction combined with conventional Western medicine treatment in managing stage G3A3 diabetic kidney disease (DKD) in the patients with the pattern of Qi-Yin deficiency combined with dampness-heat and blood stasis, and to explore its mechanism of inhibiting the endoplasmic reticulum stress (ERS)-apoptosis axis and delaying renal fibrosis (RF). MethodsA single-center, randomized, parallel-controlled clinical trial was conducted. A total of 78 patients diagnosed with stage G3A3 DKD and traditional Chinese medicine (TCM) pattern of Qi-Yin deficiency combined with dampness-heat and blood stasis and treated in the Department of Nephrology and the Department of Endocrinology of the People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine from March 2025 to February 2026 were enrolled. They were randomly assigned at a 1∶1 ratio into a control group (conventional Western medicine treatment) and an experimental group (Yishen Jiangtang decoction combined with conventional Western medicine treatment), with 39 patients in each group. The treatment lasted for 12 weeks. Basic demographic data and medical history were collected before and after treatment. The two groups before and after treatment were compared in terms of the following parameters: Blood urea nitrogen (BUN), serum creatinine (SCr), estimated glomerular filtration rate (eGFR), urinary albumin-to-creatinine ratio (UACR), fasting blood glucose (FBG), triglycerides (TG), total cholesterol (TC), and low-density lipoprotein cholesterol (LDL-C). Enzyme-linked immunosorbent assay (ELISA) kits were used to measure serum glucose-regulated protein 78 (GRP78), serum cysteinyl aspartate-specific protease-3 (Caspase-3), and serum and urinary transforming growth factor-β1 (TGF-β1) levels before and after treatment. TCM symptom scores, TCM syndrome efficacy, and overall clinical efficacy were evaluated before and after treatment. Spearman correlation analysis was performed to explore the correlations of serum levels of GRP78 and Caspase-3, as well as serum and urinary levels of TGF-β1, with renal function, proteinuria, and glucose and lipid metabolism indicators in patients with DKD. In addition, safety indicators were also monitored. ResultsA total of 75 patients completed the study (38 in the control group and 37 in the experimental group). ① Baseline data: The two groups were comparable in terms of sex and age, with no statistically significant difference. ② Efficacy outcomes: Compared with baseline levels, both groups showed reductions in BUN, SCr, UACR, FBG, TG, TC, LDL-C, and TCM symptom scores (P<0.01) and increases in eGFR level (P<0.01). Moreover, the experimental group outperformed the control group in altering the indicators above (P<0.05). Regarding TCM syndrome efficacy, the total response rate in the experimental group was 83.78%, which was higher than that (57.89%) in the control group (P<0.05). Regarding overall clinical efficacy, the total response rate in the experimental group was 78.38%, which was higher than that (50.00%) in the control group (P<0.05). ③ Mechanism outcomes: Compared with baseline levels, both groups showed declined serum levels of GRP78, Caspase-3, and TGF-β1 and urinary level of TGF-β1 after treatment (P<0.01). Moreover, the experimental group showed greater declines than the control group (P<0.05). The serum levels of GRP78, Caspase-3,and TGF-β1 and the urinary level of TGF-β1 in DKD patients showed positive correlations with BUN, SCr, UACR, and FBG and negative correlations with eGFR (P<0.05). ④ Safety outcomes: Neither group showed drug-related adverse reactions, and laboratory safety parameters remained within normal ranges. ConclusionYishen Jiangtang decoction combined with conventional Western medicine treatment may safely and effectively alleviate clinical symptoms, correct glucose and lipid metabolism disorders, and protect the renal function in patients with stage G3A3 DKD and the pattern of Qi-Yin deficiency combined with dampness-heat and blood stasis. The mechanism may be associated with inhibition of the ERS-apoptosis axis and delay of the RF process.
6.Clinical Efficacy of Yishen Jiangtang Decoction Combined with Conventional Western Medicine Treatment for Diabetic Kidney Disease with Pattern of Qi-Yin Deficiency Combined with Dampness-heat and Blood Stasis
Yunjie YANG ; Yasheng DENG ; Kaiying HE ; Qi ZHANG ; Yongxin YU ; Yaqing RUAN ; Zhuang HAN ; Qiwei CHEN ; Yi WEI ; Qiu CHEN ; Jing WU ; Mingqian JIANG ; Shiwei RUAN ; Jianting WANG ; Yuliang QIU ; Lixiang ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(21):157-167
ObjectiveTo observe the clinical efficacy and safety of Yishen Jiangtang decoction combined with conventional Western medicine treatment in managing stage G3A3 diabetic kidney disease (DKD) in the patients with the pattern of Qi-Yin deficiency combined with dampness-heat and blood stasis, and to explore its mechanism of inhibiting the endoplasmic reticulum stress (ERS)-apoptosis axis and delaying renal fibrosis (RF). MethodsA single-center, randomized, parallel-controlled clinical trial was conducted. A total of 78 patients diagnosed with stage G3A3 DKD and traditional Chinese medicine (TCM) pattern of Qi-Yin deficiency combined with dampness-heat and blood stasis and treated in the Department of Nephrology and the Department of Endocrinology of the People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine from March 2025 to February 2026 were enrolled. They were randomly assigned at a 1∶1 ratio into a control group (conventional Western medicine treatment) and an experimental group (Yishen Jiangtang decoction combined with conventional Western medicine treatment), with 39 patients in each group. The treatment lasted for 12 weeks. Basic demographic data and medical history were collected before and after treatment. The two groups before and after treatment were compared in terms of the following parameters: Blood urea nitrogen (BUN), serum creatinine (SCr), estimated glomerular filtration rate (eGFR), urinary albumin-to-creatinine ratio (UACR), fasting blood glucose (FBG), triglycerides (TG), total cholesterol (TC), and low-density lipoprotein cholesterol (LDL-C). Enzyme-linked immunosorbent assay (ELISA) kits were used to measure serum glucose-regulated protein 78 (GRP78), serum cysteinyl aspartate-specific protease-3 (Caspase-3), and serum and urinary transforming growth factor-β1 (TGF-β1) levels before and after treatment. TCM symptom scores, TCM syndrome efficacy, and overall clinical efficacy were evaluated before and after treatment. Spearman correlation analysis was performed to explore the correlations of serum levels of GRP78 and Caspase-3, as well as serum and urinary levels of TGF-β1, with renal function, proteinuria, and glucose and lipid metabolism indicators in patients with DKD. In addition, safety indicators were also monitored. ResultsA total of 75 patients completed the study (38 in the control group and 37 in the experimental group). ① Baseline data: The two groups were comparable in terms of sex and age, with no statistically significant difference. ② Efficacy outcomes: Compared with baseline levels, both groups showed reductions in BUN, SCr, UACR, FBG, TG, TC, LDL-C, and TCM symptom scores (P<0.01) and increases in eGFR level (P<0.01). Moreover, the experimental group outperformed the control group in altering the indicators above (P<0.05). Regarding TCM syndrome efficacy, the total response rate in the experimental group was 83.78%, which was higher than that (57.89%) in the control group (P<0.05). Regarding overall clinical efficacy, the total response rate in the experimental group was 78.38%, which was higher than that (50.00%) in the control group (P<0.05). ③ Mechanism outcomes: Compared with baseline levels, both groups showed declined serum levels of GRP78, Caspase-3, and TGF-β1 and urinary level of TGF-β1 after treatment (P<0.01). Moreover, the experimental group showed greater declines than the control group (P<0.05). The serum levels of GRP78, Caspase-3,and TGF-β1 and the urinary level of TGF-β1 in DKD patients showed positive correlations with BUN, SCr, UACR, and FBG and negative correlations with eGFR (P<0.05). ④ Safety outcomes: Neither group showed drug-related adverse reactions, and laboratory safety parameters remained within normal ranges. ConclusionYishen Jiangtang decoction combined with conventional Western medicine treatment may safely and effectively alleviate clinical symptoms, correct glucose and lipid metabolism disorders, and protect the renal function in patients with stage G3A3 DKD and the pattern of Qi-Yin deficiency combined with dampness-heat and blood stasis. The mechanism may be associated with inhibition of the ERS-apoptosis axis and delay of the RF process.
7.Clinical characteristics and outcomes of elderly patients with stage Ⅰ diffuse large B-cell lymphoma: a study by the Jiangsu Cooperative Lymphoma Group (JCLG)
Yi XIA ; Jing HE ; Weiying GU ; Tao JIA ; Tingxun LU ; Yongle LI ; Jiahao ZHOU ; Bingzong LI ; Haiying HUA ; Ping LIU ; Yuqing MIAO ; Yuexin CHENG ; Xiaoyan XIE ; Yunping ZHANG ; Wenzhong WU ; Zhuxia JIA ; Xuzhang LU ; Chunling WANG ; Liang YU ; Min XU ; Jinning SHI ; Weifeng CHEN ; Wanchuan ZHUANG ; Zhen QIAN ; Jun QIAN ; Haiwen NI ; Yifei CHEN ; Qiudan SHEN ; Jianyong LI ; Wenyu SHI
Chinese Journal of Internal Medicine 2025;64(6):504-513
Objective:To summarize the clinical characteristics of elderly patients with stage Ⅰ diffuse large B-cell lymphoma (DLBCL) and analyze the factors associated with prognosis.Methods:A case series study was conducted by retrospectively collecting clinical data from patients aged over 60 years with newly diagnosed stage Ⅰ DLBCL across 20 medical centers in Jiangsu Province, China, between June 2010 and April 2023. The involved site, classification and treatment plan were summarized. The primary endpoints were progression-free survival (PFS) and overall survival (OS). Statistical analyses were performed using the Kaplan-Meier method, and Cox regression model.Results:The study included 255 patients with a median age of 69 years, of whom 130 (51.0%) were male, 66 (25.9%) were aged ≥75 years and 26 (10.1%) had a high Charlson Comorbidity Index (CCI) score of ≥2. Extranodal involvement was observed in 163 (63.9%) patients, with the stomach (37.4%, 61/163), intestine (19.0%, 31/163), testes (11.0%, 18/163), and breast (7.4%, 12/163) being the most frequently affected sites. The non-germinal center B-cell (non-GCB) subtype was prevalent in 63.7% of patients (142/223), with no significant difference between the nodal and extranodal groups ( P=0.681). Furthermore, 73.9% (184/249) and 11.7% (29/249) of patients received the R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, prednisone) and R-miniCHOP regimen, respectively. The overall 3-year PFS rate was 81.5%, and the 3-year OS rate was 85.6%. Patients aged ≥75 years ( HR=2.910, 95% CI 1.565-5.408, P=0.001) and/or with a CCI score ≥2 ( HR=2.324, 95% CI 1.141-4.732, P=0.020) had a significantly poorer PFS. Incorporating age ≥75 years and CCI score ≥2 into the stage-modified international prognostic index (sm-IPI) can better stratify the prognosis of elderly patients with stage Ⅰ DLBCL. The 3-year PFS rate was 48.7% in the high-risk group versus 85.7% in the low-risk group ( P<0.001). Conclusions:Our findings show that the elderly patients with stage Ⅰ DLBCL were predominantly characterized by extranodal involvement (particularly in the stomach and intestinal tract) and non-GCB subtype. Age ≥75 years and CCI ≥2 were identified as independent prognostic factors. The newly established sm-IPI-75-CCI incorporating these factors demonstrated superior prognostic discrimination compared to conventional risk assessment systems.
8.Research of Atmospheric Pressure Ion Heat Induced Dissociation Technology
Tian-Xin XIAN ; Tian-Yi ZHAO ; Sen TIAN ; Yun-Jing ZHANG ; Xing-Li HE ; Peng LI ; Ling-Feng LI
Chinese Journal of Analytical Chemistry 2025;53(4):568-578
In the field of substance detection,ion dissociation techniques have become crucial for enhancing qualitative accuracy.By applying external energy to induce dissociation of ions in the substance being analyzed,the internal structural information can be obtained,thereby improving qualitative capabilities.Current research on ion dissociation techniques primarily focuses on tandem mass spectrometry,which typically requires a vacuum environment.However,research on ambient ion dissociation techniques is less developed,with some progress made in the field of tandem ion mobility spectrometry.Recently,the development of field-induced dissociation(FID)in this area has enabled ambient dissociation of various explosive and volatile alcohol ions.Nevertheless,the limitation imposed by the maximum breakdown field of air restricts the energy of the electric field,making it challenging to dissociate ions with high energy requirements,such as those of drugs.To address this issue,in this work,an ambient heat-induced dissociation(HID)technique based on high temperatures was proposed,in which an ambient ion heat-induced dissociation unit was developed and integrated into a home-made ion trap mass spectrometer.Experiments were conducted on four representative drug samples,e.g.methamphetamine,heroin,cocaine,and ketamine.The parent ions mass spectra,low vacuum collision-induced dissociation(CID)mass spectra and ambient HID mass spectra for each sample were obtained.By analyzing and comparing the fragmentation products from ambient and low vacuum dissociation,the feasibility of the ambient HID technique was verified.This technique provided a method for ion dissociation in single mass analyzers without tandem mass spectrometry capability and offered a new research direction for the future development of tandem ion mobility spectrometry.
9.Application of Forensic Transcriptomics in the Identification of Tissue Origin of Body Fluid Stains
Yi-Fan BAI ; He-Miao ZHAO ; Jing CHEN ; Hong-Di LIU ; Rui-Qin YANG ; Chong WANG
Journal of Forensic Medicine 2025;41(3):260-266
The inference of tissue origin of body fluid stains is crucial for case investigation and court proceedings.However,traditional methods for identification of body fluid stains,such as morpho-logical,chemical,and immunoassay identifications have certain limitations,and there is an urgent need for more efficient methods for confirmatory experiments.In recent years,the rapid development of tran-scriptomics technology has provided new means for the identification of tissue origin of body fluid stains.Different types of RNA in the transcriptome have their own advantages.This paper elaborates in detail on the application of different types of RNA,such as mRNA,miRNA,circRNA,lncRNA,piRNA and microbial transcriptomics in body fluid identification,and summarizes their respective ad-vantages and limitations,in order to provide a reference for related research.
10.Short and longterm outcomes after laparoscopic and open radical ante-grade modular pancreatosplenectomy:a propensity score matched study
Pan-pan FENG ; Xin-rui LIU ; Jing-yi HE
Chinese Journal of Current Advances in General Surgery 2025;28(11):841-846
Objective:To compare the safety,short-term and long-term efficacy of laparoscopic radical antero-grade modular pancreatic-splenic resection(L-RAMPS)and open radical anterograde modular pancreatic-splenic resec-tion(RAMPS)in the treatment of distal pancreatic cancer,providing clinical evidence for the development of minimally in-vasive surgery for distal pancreatic cancer.Methods:Clinical and follow-up data of patients with distal pancreatic can-cer who underwent surgical treatment at Department of Liver Transplantation and Hepatobiliary Surgery,Shandong Pro-vincial Hospital Affiliated to Shandong First Medical University,between January 2019 and October 2021 were retro-spectively collected.Patients were divided into a L-RAMPS group(n=70)and a RAMPS group(n=36)based on the sur-gical approach.Propensity score matching(PSM)was applied in a 1:1 ratio to compare short-term and long-term out-comes between the two groups.Results:After PSM,L-RAMPS group has the advantage of less estimated blood loss(50 mL vs 180 mL,P=0.002)and a shorter postoperative length of stay(6 d vs 8 d,P<0.001).No statistically significant differences were observed in long-term survival and postoperative complication rates between these two groups(P>0.05).Univariate and multivariate analyses identified preoperative serum CA19-9 levels,peritumoral tissue infiltration,perineural invasion,and lymph node metastasis as independent risk factors for early postoperative tumor recurrence.Conclusion:This study has demonstrated that L-RAMPS for patients with distal pancreatic cancer has the advantage of less estimated blood loss and a shorter postoperative length of stay.The short-term and long-term efficacy of L-RAMPS is comparable to that of RAMPS.L-RAMPS is a safe and effective surgical method for patients with distal pan-creatic cancer.

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