1.Application of Gas Chromatography Ion Mobility Spectrometry Technology Combined with Chemometric Methods in Identification of Foeniculi Fructus from Haiyuan Region
Xiurong TIAN ; Hao WANG ; Kejing PANG ; Penglong YU ; Xia LIU ; Mengyue SHEN ; Xianglin JIANG ; Yonghua LI ; Zhihong LI ; Hongqiong DING ; Qin YANG ; Xingying LI ; Qian XIONG ; Guochao WAN ; Yuexiang MA ; Zhenping LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(17):184-192
ObjectiveTo establish a geographical origin identification model for Foeniculi Fructus from Haiyuan, providing a new technical reference for the protection of Haiyuan's geo-authentic medicinal materials and its designation as a national geographical indication agricultural product. MethodsSamples of Foeniculi Fructus were collected from eight producing areas, including Minqin (Gansu), Bozhou (Anhui), Qingdao (Shandong), Dezhou (Shandong), Urumqi (Xinjiang), Nujiang (Yunnan), Gutuo (Inner Mongolia), and Haiyuan (Ningxia). Gas chromatography-ion mobility spectrometry (GC-IMS) was used to detect the volatile organic compounds (VOCs) in samples from these geographic origins. VOCs were qualitatively analyzed through dual matching with the National Institute of Standards and Technology (NIST) mass spectral database and the IMS drift time database. Using the Reporter module and Gallery Plot visualization tools within the LAV analytical platform, VOC fingerprint profiles characterizing geographic origins were constructed. A non-targeted analytical strategy was adopted, and 97 VOCs detected via GC-IMS were subjected to principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) based on their differential distribution patterns to construct an origin identification model for Foeniculi Fructus from Haiyuan region. Key discriminative markers were screened using variable importance in projection (VIP) values greater than 1. ResultsA total of 97 VOCs were identified, including alcohols, aldehydes, ketones, esters, organic acids, terpenoids, ethers, alkenes, and benzenes. The PLS-DA model, based on VOCs data obtained by GC-IMS, effectively distinguished Foeniculi Fructus in Haiyuan region from those of other origins. During cross-validation, the model achieved a prediction parameter (Q2) of 0.976 and a goodness-of-fit parameter (R2) of 0.936, with no overfitting observed in permutation testing. Twelve key flavor markers with VIP > 1 were identified as characteristic indicators of Haiyuan origin. ConclusionA stable and highly predictive origin identification model for Foeniculi Fructus from Haiyuan was successfully established using GC-IMS technology, PLS-DA, and VIP-based marker screening. This model provides a novel technical strategy for accurately distinguishing Foeniculi Fructus in Haiyuan region from other regional varieties and offers new technical support for its protection as a geo-authentic medicinal material and a nationally designated geographical indication agricultural product in China.
2.Application of Gas Chromatography Ion Mobility Spectrometry Technology Combined with Chemometric Methods in Identification of Foeniculi Fructus from Haiyuan Region
Xiurong TIAN ; Hao WANG ; Kejing PANG ; Penglong YU ; Xia LIU ; Mengyue SHEN ; Xianglin JIANG ; Yonghua LI ; Zhihong LI ; Hongqiong DING ; Qin YANG ; Xingying LI ; Qian XIONG ; Guochao WAN ; Yuexiang MA ; Zhenping LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(17):184-192
ObjectiveTo establish a geographical origin identification model for Foeniculi Fructus from Haiyuan, providing a new technical reference for the protection of Haiyuan's geo-authentic medicinal materials and its designation as a national geographical indication agricultural product. MethodsSamples of Foeniculi Fructus were collected from eight producing areas, including Minqin (Gansu), Bozhou (Anhui), Qingdao (Shandong), Dezhou (Shandong), Urumqi (Xinjiang), Nujiang (Yunnan), Gutuo (Inner Mongolia), and Haiyuan (Ningxia). Gas chromatography-ion mobility spectrometry (GC-IMS) was used to detect the volatile organic compounds (VOCs) in samples from these geographic origins. VOCs were qualitatively analyzed through dual matching with the National Institute of Standards and Technology (NIST) mass spectral database and the IMS drift time database. Using the Reporter module and Gallery Plot visualization tools within the LAV analytical platform, VOC fingerprint profiles characterizing geographic origins were constructed. A non-targeted analytical strategy was adopted, and 97 VOCs detected via GC-IMS were subjected to principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) based on their differential distribution patterns to construct an origin identification model for Foeniculi Fructus from Haiyuan region. Key discriminative markers were screened using variable importance in projection (VIP) values greater than 1. ResultsA total of 97 VOCs were identified, including alcohols, aldehydes, ketones, esters, organic acids, terpenoids, ethers, alkenes, and benzenes. The PLS-DA model, based on VOCs data obtained by GC-IMS, effectively distinguished Foeniculi Fructus in Haiyuan region from those of other origins. During cross-validation, the model achieved a prediction parameter (Q2) of 0.976 and a goodness-of-fit parameter (R2) of 0.936, with no overfitting observed in permutation testing. Twelve key flavor markers with VIP > 1 were identified as characteristic indicators of Haiyuan origin. ConclusionA stable and highly predictive origin identification model for Foeniculi Fructus from Haiyuan was successfully established using GC-IMS technology, PLS-DA, and VIP-based marker screening. This model provides a novel technical strategy for accurately distinguishing Foeniculi Fructus in Haiyuan region from other regional varieties and offers new technical support for its protection as a geo-authentic medicinal material and a nationally designated geographical indication agricultural product in China.
3.Effect of neuromuscular blockade protocol on postoperative shoulder pain in patients undergoing robot-assisted laparoscopic surgery:A single-center randomized controlled clinical trial
Meixiao FAN ; Minjuan ZHANG ; Shasha PANG ; Shan HE ; Zhihong LU ; Dong XING
The Journal of Practical Medicine 2024;40(17):2460-2464
Objective To compare the impact of continuous profound neuromuscular blockade versus con-ventional neuromuscular blockade on postoperative shoulder pain in patients undergoing robot-assisted laparoscopic surgery during steep Trendelenburg position.Methods This study was a single-center,randomized,double-blind clinical trial.The inclusion criteria encompassed individuals aged between 18 and 80 years,with an American Society of Anesthesiologists status of Ⅰ or Ⅱ,and a body mass index ranging from 18 kg/m2 to 30 kg/m2.A total of one hundred patients were randomly assigned to either the deep neuromuscular blockade group(D group)or the conventional neuromuscular blockade group(C group),with equal distribution of fifty cases in each group.Rocuronium dosage was titrated to achieve post-tetanic count values of 1~2 and train-of-four stimulation levels of 1~2 during surgery for D and C groups respectively.At the end of surgery,sugammadex was administered for reversal of neuromuscular blockade.The primary endpoint assessed the incidence of postoperative shoulder pain within three days after surgery.Secondary endpoints included Leiden score evaluation during intraoperative period,number of additional neuromus-cular blockers required by the surgeon,recovery time for muscle relaxation postoperatively,nausea and vomiting scores during recovery phase,visual analog scale(VAS)scores in Post-Anesthesia Care Unit(PACU)as well as within three days after surgery,incidence rate for postoperative pulmonary complications,length of hospital stay duration and patient satisfaction score.Results The incidence of postoperative shoulder pain was significantly lower in group D compared to group C(D group 32%vs.C group 56%;P<0.05).However,there were no significant differences in postoperative shoulder pain VAS scores between the two groups(P>0.05).No significant differences were observed between the groups in terms of Leiden score,surgeon's requirement for additional neuromuscular blockers,nausea and vomiting in PACU,and VAS score(P>0.05).Group D exhibited better early postoperative activity pain scores than group C(P<0.05).There were no significant differences in VAS scores between the groups at other time points(P>0.05).Furthermore,there were no significant differences in the incidence of postoperative pulmonary complications,length of stay,and satisfaction scores between the two groups.Conclusion The imple-mentation of continuous deep neuromuscular blockade in patients undergoing robot-assisted laparoscopic surgery with steep Trendelenburg position can effectively mitigate the occurrence of postoperative shoulder pain.
4.Analysis of influencing factors of acute kidney injury in coronary artery bypass grafting patients treated with different statins
Guanghui PANG ; Yang TIAN ; Zhihong OU ; Xiuhui ZHANG ; Zhongqi ZHOU ; Junsheng LI ; Zhengrong LI
Chinese Journal of Emergency Medicine 2021;30(7):848-855
Objective:To compare the effects of rosuvastatin and atorvastatin on coronary artery bypass grafting (CABG) on the incidence of acute kidney injury (AKI), and assess the independent risk factors of AKI.Methods:We retrospectively collected 550 patients aged 18 years or older who underwent CABG from May 2014 to May 2020. They were divided into the rosuvastatin group ( n=322), atorvastatin group ( n=125) and non statins group ( n=103) according to whether rosuvastatin or atorvastatin was routinely used before operation. Demographic data, clinical data before and after CABG and laboratory results were collected. Blood urea nitrogen (BUN), serum creatinine (Scr), creatinine clearance rate (Ccr) and incidence of postoperative AKI were compared among the three groups. Univariate analysis and binary logistic regression analysis were used to investigate the effect of statins on AKI in patients undergoing CABG. Results:Compared with preoperation, BUN showed no significant change ( P>0.05), while Scr was increased and Ccr was decreased significantly (both P<0.01); BUN in the rosuvastatin group was decreased significantly ( P<0.01), whereas Scr and Ccr had no significant change ( P>0.05); Scr in the atorvastatin group was increased significantly ( P<0.01), but there was no significant difference in BUN and Ccr ( P>0.05). BUN and Scr in the non statins group were increased significantly (both P<0.01), while Ccr was decreased significantly ( P<0.01). After operation, BUN and Scr in the rosuvastatin group and atorvastatin group were significantly lower than those in the non statins group (all P<0.01); Ccr was significantly higher than that in the non statins group ( P<0.01). BUN and Scr were not significantly different between the rosuvastatin and atorvastatin groups ( P>0.05), but Ccr was significantly higher than that in the atorvastatin group ( P< 0.05). There were significant differences in BUN, Scr and Ccr among the three groups ( χ2=48.925, 22.677 and 34.426, all P<0.01). The incidence of AKI among 550 patients was 15.1% (83/550), of which 9.6% (31/322) in the rosuvastatin group, 16.0% (20/125) in the atorvastatin group and 31.1% (32/103) in the non statins group. The incidence of AKI in the rosuvastatin and atorvastatin groups was significantly lower than that in the non statins group ( χ2=28.412, 7.282, P<0.01). Multivariate regression analysis showed that hypertension ( OR=3.555, 95% CI: 1.959-6.451, P<0.01), NHYAⅢ/Ⅳ ( OR=2.438, 95% CI: 1.187-5.008, P=0.015), and increased serum creatinine level ( OR=1.018, 95% CI: 1.003-1.032, P=0.016), and intraoperative cardiopulmonary bypass ( OR=2.936, 95% CI: 1.454-5.927, P=0.003) were independent risk factors for AKI after CABG, while preoperative conventional statin therapy ( OR=0.490, 95% CI: 0.247-0.974, P=0.042) and increased serum albumin level ( OR=0.920, 95% CI: 0.856-0.990, P=0.026) were protective factors for AKI after CABG. Conclusions:The incidence of AKI after CABG is common. Rosuvastatin or atorvastatin and increased preoperative serum albumin level can protect renal function and reduce the incidence of AKI, which are the protective factors of AKI after CABG. The hypertension, NHYAⅢ/Ⅳ, increased preoperative serum creatinine level and cardiopulmonary bypass are the independent risk factors of AKI after CABG.
5. Vaginal delivery after 37 days of a convalescent pregnant woman with COVID-19: a case report
Xiali XIONG ; Qiumei PANG ; Hong WEI ; Xiaopeng MA ; Zhihong ZHANG ; Xiang GAO
Chinese Journal of Perinatal Medicine 2020;23(4):280-282
We present a case report of a healthy neonate born by vaginal delivery to a woman who had recovered from COVID-19 after 37 days of discharge. The pregnant woman had fever, cough, and chills at 33 +1 gestational weeks and was diagnosed with COVID-19 by coronavirus nucleic acid test one day later. She recovered and was discharged after a series of treatment, and the 2019 novel coronavirus nucleic acid test and pulmonary CT were negative at the 2nd and 4th weeks after being discharged. The patient was admitted in early labor at 38 +4 gestational weeks and delivered a healthy newborn vaginally at that day. Both the mother and the baby were in good condition. All the maternal or neonatal specimens taken immediately after birth in the delivery room for 2019 novel coronavirus nucleic acid tests were negative, including the maternal pharynx, rectal and cervical secretions, amniotic fluid, an neonatal pharynx and rectal swabs. The qualitative examination of 2019 novel coronavirus antibodies in the maternal venous blood test showed that both IgG and IgM were positive. While the same test for neonatal cord blood and femoral vein blood showed negative results. No inflammatory reaction was found in the placenta and immunohistochemistry detection of novel coronavirus N protein was negative. The mother and newborn were observed postnatally and treated in the same ward, neither of them had fever, cough or fatigue, and were discharged three days after delivery. The qualitative examination of 2019 novel coronavirus antibodies (IgM and IgG) in the femoral vein blood of the nenonate 27 days old showed negative results.
6. Specifications for diagnosis and treatment of non-neonatal tetanus
Chuanlin WANG ; Si LIU ; Qingjun CHEN ; Zhujun SHAO ; Jifeng WU ; Zhao FAN ; Peige WANG ; Zhenggang ZHU ; Pin LAN ; Jianguo LI ; Yishan ZHENG ; Wubing HE ; Zhe XU ; Weidong TANG ; Jinman PANG ; Zhihong BAN ; Shuqing YANG ; Wentao DING ; Xifu ZHENG ; Qilong ZHANG
Chinese Journal of Trauma 2020;36(1):18-23
Tetanus consists of neonatal tetanus and non-neonatal tetanus. Non-neonatal tetanus remains a serious public health problem, although neonatal tetanus has been eliminated in China since 2012. Non-neonatal tetanus is a potential fatal disease. In the absence of medical intervention, the mortality rate of severe cases is almost 100%. Even with vigorous treatment, the mortality rate remains 30%-50% globally. These specifications aim to regulate non-neonatal tetanus diagnosis and treatment in China, in order to improve medical quality and safety. These specifications introduce the etiology, epidemiology, pathogenesis, clinical manifestations and laboratory tests, diagnosis, differential diagnosis, grading and treatment of non-neonatal tetanus.
7.Specifications for diagnosis and treatment of non-neonatal tetanus
Chuanlin WANG ; Si LIU ; Qingjun CHEN ; Zhujun SHAO ; Jifeng WU ; Zhao FAN ; Peige WANG ; Zhenggang ZHU ; Pin LAN ; Jianguo LI ; Yishan ZHENG ; Wubing HE ; Zhe XU ; Weidong TANG ; Jinman PANG ; Zhihong BAN ; Shuqing YANG ; Wentao DING ; Xifu ZHENG ; Qilong ZHANG
Chinese Journal of Epidemiology 2020;41(2):162-166
Tetanus consists of neonatal tetanus and non-neonatal tetanus.Non-neonatal tetanus remains a serious public health problem,although neonatal tetanus has been eliminated in China since 2012.Non-neonatal tetanus is a potential fatal disease.In the absence of medical intervention,the mortality rate of severe cases is almost 100%.Even with vigorous treatment,the mortality rate is still 30%-50% globally.These specifications aim to regulate non-neonatal tetanus diagnosis and treatment in China,in order to improve medical quality and safety.These specifications introduce the etiology,epidemiology,pathogenesis,clinical manifestations and laboratory tests,diagnosis,differential diagnosis,grading and treatment of non-neonatal tetanus.
8. Consistency of ALK Ventana-D5F3 immunohistochemistry interpretation in lung adenocarcinoma among Chinese histopathologists
Lin LI ; Liping ZHANG ; Yuchen HAN ; Weiya WANG ; Yan JIN ; Qingxin XIA ; Yueping LIU ; Jin XIANG ; Chao LIU ; Shanshan LU ; Wei WU ; Zhen CHEN ; Juan PANG ; Yanfeng XI ; Yushuang ZHENG ; Dongmei GU ; Jun FAN ; Xiaona CHANG ; Weiwei WANG ; Liang WANG ; Zhihong ZHANG ; Xiaochu YAN ; Yi SUN ; Ji LI ; Feng HOU ; Jingyuan ZHANG ; Rongfang HUANG ; Jianping LU ; Zheng WANG ; Yongbin HU ; Hongtu YUAN ; Yujie DONG ; Lu WANG ; Zhenyu KE ; Jingshu GENG ; Lei GUO ; Jing ZHANG ; Jianming YING
Chinese Journal of Pathology 2019;48(12):921-927
Objective:
To understand the consistency of ALK Ventana-D5F3 immunohistochemistry (IHC) interpretation in Chinese lung adenocarcinoma among histopathologists from different hospitals, and to recommend solution for the problems found during the interpretation of ALK IHC in real world, with the aim of the precise selection of patients who can benefit from ALK targeted therapy.
Methods:
This was a multicenter and retrospective study. A total of 109 lung adenocarcinoma cases with ALK Ventana-D5F3 IHC staining were collected from 31 lung cancer centers in RATICAL research group from January to June in 2018. All cases were scanned into digital imaging with Ventana iSCANcoreo Digital Slide Scanning System and scored by 31 histopathologists from different centers according to ALK binary (positive or negative) interpretation based on its manufacturer′s protocol. The cases with high inconsistency rate were further analyzed using FISH/RT-PCR/NGS.
Results:
There were 49 ALK positive cases and 60 ALK negative cases, confirmed by re-evaluation by the specialist panel. Two cases (No. 2302 and No.2701) scored as positive by local hospitals were rescored as negative, and were confirmed to be negative by RT-PCR/FISH/NGS. The false interpretation rate of these two cases was 58.1% (18/31) and 48.4% (15/31), respectively. Six out of 31 (19.4%) pathologists got 100% accuracy. The minimum consistency between every two pathologists was 75.8%.At least one pathologist gave negative judgement (false negative) or positive judgement (false positive) in the 49 positive or 60 negative cases, accounted for 26.5% (13/49), 41.7% (25/60), respectively, with at least one uncertainty interpretation accounted for 31.2% (34/109).
Conclusion
There are certain heterogeneities and misclassifications in the real world interpretation of ALK-D5F3 IHC test, which need to be guided by the oncoming expert consensus based on the real world data.
9. Specifications for diagnosis and treatment of non-neonatal tetanus
Chuanlin WANG ; Si LIU ; Qingjun CHEN ; Zhujun SHAO ; Jifeng WU ; Zhao FAN ; Peige WANG ; Zhenggang ZHU ; Pin LAN ; Jianguo LI ; Yishan ZHENG ; Wubing HE ; Zhe XU ; Weidong TANG ; Jinman PANG ; Zhihong BAN ; Shuqing YANG ; Wentao DING ; Xifu ZHENG ; Qilong ZHANG
Chinese Journal of Preventive Medicine 2019;53(12):1206-1211
Tetanus consists of neonatal tetanus and non-neonatal tetanus. Although neonatal tetanus in China has been eliminated since 2012, non-neonatal tetanus remains a serious public health problem. Non-neonatal tetanus is a potential fatal disease, and the mortality rate of severe cases is almost 100% in the absence of medical intervention. Even with vigorous treatment, the mortality rate is still 30~50% globally. In order to standardize the diagnosis and treatment of non-neonatal tetanus in China, this specification is hereby formulated. This standard includes etiology, epidemiology, pathogenesis, clinical manifestations, laboratory tests, diagnosis, differential diagnosis, classification, grading and treatment of non-neonatal tetanus.
10.The 2-year efficacy study of femtosecond laser corneal small incision lenticule extraction for correction of myopia and myopic astigmatism
Shengwei, REN ; Chenjiu, PANG ; Zhihong, MENG ; Lijuan, DAI ; Chuanqin, LU ; Yuwei, GU ; Haiying, PENG
Chinese Journal of Experimental Ophthalmology 2016;34(9):818-822
Background Researches showed that femtosecond laser corneal small incision lenticule extraction (SMILE) was used in the correction of myopia and myopic astigmatism due to its fast recovery,good shortterm efficacy and few complications.However,few research focused on its long-term efficacy.Objective Thisstudy was to evaluate the effectiveness,safety,predictability,stability and complications of SMILE.Methods A serial cases-observational study was carried out under the approval of Ethic Committee of Henan Eye Institute and informed consent of patients.Sixty-seven eyes of 34 patients with myopia and myopic astigmatism were included in Henan Eye Institute from January to June 2013.All the patients received SMILE and followed-up for 2-year duration.The uncorrected visual acuity (UCVA),best corrected visual acuity (BCVA),automatic optometry,intraocular pressure and corneal topography were examined before surgery and 1 day,1 week,1 month,3 months,1 year and 2 years after surgery and calculated the spherical equivalent (SE).The long-term efficacy of SMILE included effective index (preoperative BCVA/postoperative UCVA),safety index (postoperative BCVA/ preoperative BCVA),predictability (linear regression analysis between actual SE and attempted SE) and refractive stability (SE changes at postoperative time points).Results The preoperative BCVA was ≥ 20/20 in 60 eyes with the percentage of 89.55%.UCVA≥ 20/20 were found in 61 eyes and 60 eyes in postoperative 3 months and 2 years respectively (91.04% and 89.55%).The effective index was 1.038±0.182 and 1.029±0.231 in postoperative 3 months and 2 years respectively,showing an insignificant difference between them (t =0.400,P > 0.05).Compared with the preoperative BCVA,8.96% (6/67) and 10.45% (7/67) eyes lost 1 line at 3 months and 2 years after surgery,respectively.The safety indexes were 1.141±0.193 and 1.312±0.242 at 3 months and 2 years after surgery,with no significant difference between them (t =0.414,P>0.05).A linear correlation was found between actual SE and attempted SE both at postoperative 3 months and 2 years,with the linear regression equations of Y=0.897 1X-0.440 8 (R2 =0.914 2,P<0.05) and Y =0.893 7X-0.382 3 (R2 =0.915 7,P<0.05),respectively.The SE was (0.013±0.578),(-0.033±0.489),(-0.106±0.508),(-0.103±0.375),(-0.154±0.518) and (-0.147±0.366)D 1 day,1 week,1 month,3 months,1 year and 2 years after surgery,respectively,and there were no significant difference among different time points (F =0.185,P =0.176).Eighteen in the 67 eyes occurred opaque bubble layer after surgery.Diffuse lamellar keratitis appeared in 6 eyes and punctate keratitis was in 2 eyes.These complications were cured 1 month after administration of drugs.Conclusions SMILE is good in effectiveness,safety,predictability and refreactive stability and has fewer complications during 2-year following-up.

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