1.The role of CYP2E1 in trichloroethylene-induced skin sensitization and liver damage in guinea pigs
Lijuan WU ; Xiangrong SONG ; Fengrong LU ; Hongling LI ; Jiaheng HE ; Xiao ZHANG ; Hailan WANG
China Occupational Medicine 2025;52(3):249-256
Objective To investigate the role of cytochrome P450 2E1 (CYP2E1) in trichloroethylene (TCE)-induced skin sensitization and liver damage in guinea pigs, using diallyl sulfide (DAS), a CYP2E1 inhibitor, as an intervention. Methods Specific pathogen-free female guinea pigs were randomly divided into blank control group, solvent control group, positive control (2,4-dinitrochlorobenzene) group, TCE-exposure group, and DAS-intervention group. Skin sensitization experiments were conducted using the guinea pig TCE maximal dose-skin sensitization test. Urinary trichloroacetic acid levels were determined following TCE induction and challenge. At 48 hours after the final challenge, serum liver function markers and inflammatory cytokines levels were detected. Histopathological examination on skin and liver tissues was performed, and hepatic CYP2E1 protein expression and oxidative stress indicators were assessed. Results The sensitization rates of guinea pigs were 100.0%, 75.0%, and 33.3% in the positive control, TCE-exposure, and DAS-intervention groups, respectively, while the blank control and solvent control groups were both 0.0%. Compared with the guinea pigs in TCE-exposure group, those in the DAS-intervention group had lower urinary trichloroacetic acid levels at intradermal induction, local induction, first challenge, and 24 hours after the final challenge time point (all P<0.05). Histopathology of guinea pigs showed dermal inflammatory infiltration and basal keratinocyte necrosis in the TCE-exposure group, whereas only mild dermal inflammation was observed in the DAS-intervention group. The guinea pigs in TCE-exposure group exhibited diffuse hepatocellular necrosis, while hepatic damage in the DAS-intervention group was alleviated, characterized by only mild hepatocellular steatosis and hepatocyte swelling around the central vein. The skin sensitization rate of guinea pigs in the TCE-exposure group increased (all P<0.01), the serum alanine aminotransferase (ALT )activity, the levels of interleukin (IL)-2, IL-17, and tumor necrosis factor-α (TNF- α) increased (all P<0.05), the relative expression of CYP2E1 protein, the activity of superoxide dismutase (SOD), and the level of malondialdehyde in liver tissue increased (all P<0.05), while the activity of catalase decreased (P<0.05), compared with the blank control and solvent control groups. The serum ALT activity and the levels of IL-2, IL-17, and TNF-α of guinea pigs in DAS-intervention group reduced (all P<0.05), as well as CYP2E1 protein expression, SOD activity, and malondialdehyde level in liver tissue reduced (all P<0.05), compared with the TCE-exposure group. Conclusion TCE can induce hepatic CYP2E1 expression, thereby promoting oxidative stress and inflammatory responses, which contributes to skin sensitization and liver damage. DAS alleviates TCE-induced toxic effects on skin and liver by inhibiting CYP2E1 expression.
2.Thromboelastography and routine coagulation tests in the management of coagulation during ECMO therapy:a comparative study
Hao LI ; Sina LI ; Huini HUANG ; Ziji YANG ; Huiqiong XIE ; Ruixian LUO ; Shulin XIANG ; Hailan LI ; Zhuning MO
Chinese Journal of Blood Transfusion 2024;37(6):613-619
Objective To investigate the correlation and consistency between the parameters of thromboelastography(TEG)and routine coagulation tests,and to evaluate the application value of the two methods in heparin anticoagulation monitoring and coagulation function monitoring in patients receiving extracorporeal membrane oxygenation(ECMO)therapy.Methods A total of 138 patients who recieved ECMO in the Department of Critical Care Medicine of the People's Hospital of Guangxi Zhuang Autonomous Region from October 2021 to December 2022 were selected.A total of 317 pairs of ordinary TEG and heparinase-modified TEG(hmTEG)parameters measured simultaneously were analyzed for correlation and consis-tency with activated partial thromboplastin time(APTT),fibrinogen(Fib),and platelet count(Plt),and the parameters tested when ECMO was established and 24 hours after ECMO operation were compared.Results The correlation coefficient between R values and APTT of hmTEG(r=0.441,P<0.05)was lower than that of ordinary TEG(r=0.547,P<0.05).The parameters α-Angle and K value of ordinary TEG were not correlated with Fib(P>0.05),while as for hmTEG,the correla-tion was 0.359(P<0.05)and-0.343(P<0.05),respectively.The correlation between MA value of hmTEG and Plt was 0.456(P<0.05),which was much lower than its correlation with Fib(r=0.715,P<0.05).APTT and hmTEG had moderate agreement in judging the anticoagulant effect of UFH(P<0.05).Plt at 24 hours after ECMO was significantly lower than that at establishment of ECMO(P<0.05).Fib,APTT and hmTEG parameters were not significantly different between the two groups(P>0.05).Conclusion The parameters of hmTEG can better reflect the real level of coagulation factors in patients receiving ECMO.The results of hmTEG and APTT are complementary to assess whether heparin in ECMO patients is over-dosed,and hmTEG has unique advantages.Routine coagulation tests and TEG cannot replace each other,and the combina-tion of them can achieve better anticoagulation and coagulation management.
3.Comparative efficacy of vNOTES and LESS in the management of benign uterine lesions in obese patients
Wenyuan LI ; Min WEI ; Jie HAN ; Ruifeng LI ; Zhen WANG ; Hailan LI ; Jing XU ; Dongmei JIN ; Lingyan XU ; Rong PENG ; Yan ZHANG ; Xinhua SUN
The Journal of Practical Medicine 2024;40(22):3184-3189
Objective To compare the outcomes of transvaginal natural orifice transluminal endoscopic surgery(vNOTES)and laparoendoscopic single-site surgery(LESS)for total uterine excision in obese patients with benign uterine lesions,and to investigate the utility of vNOTES in this patient population.Methods A total of 100 obese patients(BMI>28.0 kg/m2)diagnosed with benign uterine lesions requiring total uterine and bilateral salpingectomy between January 2022 and January 2023 were included in this study.They were randomly assigned to two groups:the LESS group(n=51)and the vNOTES group(n=49).Patient demographics,surgical duration,intraoperative blood loss,changes in hemoglobin levels,pain scores,time to first flatus postoperatively,length of hospital stay,pelvic floor function,sexual quality of life,and postoperative complications were compared between the two groups.Results The two groups did not show any statistically significant differences in terms of blood loss,pre-and postoperative hemoglobin changes,pelvic floor function,sexual quality of life,or postoperative complications(P>0.05).However,the vNOTES group exhibited shorter surgical durations,time to first flatus postoperatively,and length of hospital stay compared to the LESS group(P<0.05).Additionally,the vNOTES group demonstrated lower intraoperative pain scores than the LESS group.(P<0.05).Conclusions In obese patients with benign uterine lesions,vNOTES total uterine excision surgery demonstrated shorter surgical durations and postoperative hospital stays,lower postoperative pain scores,and better adherence to the principles of en-hanced recovery after surgery(ERAS),indicating its potential for broader application.
4.Exploration on the Medication Law of National TCM Master Gan Zuwang in Treating Rhinitis Based on Multivariate Data Mining
Yue LI ; Hailan HONG ; Wenlin LI
Chinese Journal of Information on Traditional Chinese Medicine 2024;31(12):49-56
Objective To analyze the medication law of national TCM master Gan Zuwang in the treatment of rhinitis using multivariate techniques.Methods The clinical cases of Professor Gan Zuwang's treatment of rhinitis from Jiangsu Province Hospital of Chinese Medicine from April 1984 to February 2001 were selected.Frequency statistics,co-occurrence frequency,association rules,dosage analysis and clustering analysis were used to reveal potential relationships between drugs from multiple perspectives,which were combined with the visual results of heat map,spectrogram,complex network,etc.,for intuitive presentation.Results Totally 1 080 medical cases were included,involving 1 044 prescriptions and 281 kinds of Chinese materia medica.The high-frequency drugs included Magnoliae Flos,Atractylodis Macrocephalae Rhizoma,Angelicae Dahuricae Radix,etc.;the tastes were mainly sweet,bitter and pungent,and their properties were mainly cold and warm,and most of them were classified into the lung meridian and the liver meridian.The top three drug efficacy classifications were antidepressants,purgatives and deficiency tonics.And substitute food for medicine,adding water chestnuts,jellyfish,kelp appeared in low-frequency drugs.In addition,Saposheikovize Radix-Astragali Radix-Atractylodis Macrocephalae Rhizoma,Xanthii Fructus-Menthae Haplocalycis Herba-Magnoliae Flos-Angelicae Dahuricae Radix were the core pairs,the dosage of Acori Tatarinowii Rhizoma and Angelicae Dahuricae Radix was more discrete,and the dosage of Poria was lower than the latest standardized value.Four types of formulas were finally obtained through comprehensive analyses:Yupingfeng Powder and Tuomin Decoction were used for the treatment of allergic rhinitis,Cangerzi Powder and Biyuan Mixture were used for the treatment of nasosinusitis,Shengqing Liuqi Decoction was used for the treatment of tinnitus,and Sijunzi Decoction,Senling Baizhu Powder,Yigong Powder and Buzhong Yiqi Decoction were used to strengthen spleen and tonify qi.Conclusion This study delves into the potential association between drugs and comprehensively explores Professor Gan Zuwang's medication experience in the treatment of rhinitis,which compensates for the high-frequency limitation and data bias of a single study.
5.Effect of CRD combined with intestinal micro-ecological preparation on pregnancy outcomes in overweight/obese infertile patients with fresh embryo transfer cycles
Ying ZHONG ; Hong LUO ; Shubiao HAN ; Tianping LI ; Feng ZHOU ; Qi SONG ; Hailan SUN
Chongqing Medicine 2024;53(10):1497-1503
Objective To investigate the effects of calorie-restricted diet(CRD)combined with intesti-nal micro-ecological preparation on the clinical outcomes of overweight/obese infertile patients undergoing fresh embryo transfer cycle.Methods A total of 197 cases of fresh embryo transfer assisted by in vitro fertili-zation(IVF)/intracytoplasmic sperm injection(ICSI)-embryo transfer(ET)in the hospital from January,2019 to December,2021 were selected as the research objects,and were divided into the overweight interven-tion group(n=46),the overweight control group(n=85)and the obesity intervention group(n=85)accord-ing to the body mass index(BMI)and whether they accepted CRD intervention or not.Results Compared to before the intervention,the overweight intervention group had significantly lower body mass[(63.59±4.90)kg vs.(67.47±5.10)kg],BMI[(25.74±1.26)kg/m2 vs.(26.58±0.75)kg/m2],body fat percentage[(36.51±3.76)%vs.(39.21±4.26)%],waist to hip ratio(0.88±0.04 vs.0.91±0.04),visceral fat grade(10.80±2.45 vs.12.63±2.60),and basal metabolic rate[(1 235.98±74.32)kcal vs.(1 254.63±77.23)kcal],P<0.05;The body mass[(71.79±9.78)kg vs.(77.18±9.62)kg],BMI[(29.04±2.96)kg/m2 vs.(31.21±2.64)kg/m2],body fat percentage[(40.47±4.77)%vs.(43.97±3.81)%],waist to hip ratio(0.92±0.05 vs.0.96±0.06),and visceral fat grade(14.00±3.74 vs.16.59±3.15)of the obesity interven-tion group were significantly reduced(P<0.05).Compared with the overweight control group,the number of transplanted embryos(1.85±0.36 vs.1.96±0.19)in the overweight intervention group was less(P<0.05),while the number of live births(0.61±0.37 vs.0.56±0.36)was more,the live birth rate(43.48%vs.40.00%)was higher,but there was no statistically significant difference(P>0.05).The clinical preg-nancy rate and live birth rate in the obesity intervention group were higher than those in the control group(72.41%vs.51.35%and 58.62%vs.35.14%),with no statistical significance,but with a strong statistical significance(P>0.05).Conclusion CRD combined with intestinal micro-ecological preparation can signifi-cantly reduce the body mass and body fat of overweight/obese infertile patients,may help improve the success rate of assisted reproduction in obese infertile patients.
6.Meta-analysis of θ short array rapid pulse stimulation in treatment of schizophrenia
Yan LI ; Lei YAN ; Jie Yong LI ; Yuan XIA ; Zhen LIANG ; Hailan TANG ; Jialin GUO ; Zhu WANG
Chinese Mental Health Journal 2024;38(10):846-853
Objective:To evaluate the efficacy and safety of θ short burst rapid pulse stimulation(TBS)in treating schizophrenia by meta-analysis.Methods:Randomized controlled trials(RCTS)on TBS in the treatment of schizophrenia were searched from CNKI,Wanfang,VIP,China Biomedicine,Web of science,PubMed,Embase and Cochrane Library databases to December 2022.The main study indicator was the Positive and Negative Symptoms Scale(PANSS).Risk quality assessment of the included literatures was performed by two reviewers and statistical analysis was performed using RevMan5.3.Results:A total of 13 RCTS with 641 patients were included.Meta-anal-ysis showed that TBS targeting the left dorsolateral prefrontal cortex(DLPFC)with intervention duration longer than 2 weeks decreased the PANSS total scores(WMD=-4.63,95%CI:-5.75--3.51,P<0.001),positive symptom scores(WMD=-1.13,95%CI:-2.00--0.26,P<0.05),negative symptom scores(WMD=-2.51,95%CI:-2.77--1.53,P<0.001)and general psychopathological symptom scores(WMD=-1.20,95%CI:-1.80--0.60,P<0.001).The adverse reactions of TBS included dizziness,and no serious adverse e-vents were reported.Conclusion:TBS has high safety,and stimulation of left dorsolateral prefrontal cortex targets for more than 2 weeks could effectively improve psychiatric symptoms in patients with schizophrenia.
7.Effects of long-term exposure to new types of light emitting diode sources on neurobehavior of rats
Fengrong LU ; Zhaoyang FENG ; Yihua SHI ; Guoliang LI ; Jiewei ZHENG ; Yuli ZENG ; Xiangrong SONG ; Xiao ZHANG ; Hongling LI ; Lihai ZENG ; Zhiwei XIE ; Jin WU ; Wenliang ZHOU ; Hailan WANG
China Occupational Medicine 2024;51(6):614-621
Objective To investigate the effects of long-term exposure to three new types of light emitting diode (LED) sources on the behavior, learning, and memory of rats. Methods A total of 160 specific pathogen-free SD rats were divided into eight groups as followed, trichromatic fluorescent lamps color temperature control group, violet-chip full-spectrum white LED group, blue-chip white LED group, and blue-chip full-spectrum white LED group based on the light sources types, with color temperature of 4 000 K and 6 500 K groups in each group using the 4×2 factorial design. There were 20 rats in each group, with half of the rats were males and half females. Rats were exposed to artificial lighting, and the illumination was set at 750 lx. The rats in each group were exposed to different lighting environments for 12 hours per day for 24 weeks. The open-field and step-down tests were conducted in rats after 24 weeks exposure, followed by sacrifice of rats and measurement of organ coefficients. Differences in body weight, organ coefficients, and neurobehavioral indexes of rats in different groups were compared. Results The spleen coefficient of female rats decreased in blue-chip white LED of 6 500 K color temperature group, and the liver coefficient of male rats decreased in the violet-chip full-spectrum white LED of 4 000 K color temperature, blue-chip full-spectrum white LED of 4 000 K color temperature, and blue-chip full-spectrum white LED of 6 500 K color temperature groups, compared with the same-sex rats in trichromatic fluorescent lamps with same-color temperature control group (all P<0.05). The result of different types of light sources compared in the open-field test showed that the index of total distance and movement speed of female rats in the blue-chip full-spectrum white LED group were lower than those in the other three groups, and the time cost to the central area was longer than that in the blue-chip white LED group and the violet-chip full-spectrum white LED group (all P<0.05). The total distance and movement speed of male rats in the blue-chip full-spectrum white LED group were longer or higher than those in the violet-chip full-spectrum white LED group (all P<0.05). Based on the comparison of color temperature, the time and total distance of male rats in 6 500 K color temperature group were lower than that in the 4 000 K color temperature group (both P<0.05). In the step-down test, both male and female rats in the blue-chip full-spectrum white LED group made more errors compared with other three groups with the same gender (all P<0.05). Conclusion Based on the experimental conditions of this study, the blue-chip full-spectrum white light LED affects behavior, learning and memory of the rats, and trichromatic fluorescent lamp has the lowest effect on neurobehavior. The color temperature also affects behavior of the rats, and high color temperature has higher risk.
8.Design and Implementation of Intelligent Question Answering System of Marine Traditional Chinese Medicine Based on Knowledge Graph
Hailan HONG ; Wenlin LI ; Tao YANG ; Yue LI ; Wenjing MEI
World Science and Technology-Modernization of Traditional Chinese Medicine 2023;25(6):1935-1941
Objective In order to solve the problem of insufficient public understanding of the information of Marine Traditional Chinese Medicine and the lack of relevant knowledge service tools of Marine Traditional Chinese Medicine,the research and development of an intelligent question-answering system for Marine Traditional Chinese Medicine have been carried out,to provide a tool for public to inquire the knowledge of Marine Traditional Chinese Medicine.Methods The knowledge base is based on the fine-sized Marine Traditional Chinese Medicine knowledge graph MMKG constructed in the early stage.Aho-Corasick,Word2Vec and other algorithms were used to obtain Marine Traditional Chinese Medicine entities.From the professional point of view,a fine-sized classification method for Marine Traditional Chinese Medicine questions was proposed,and an intelligent Marine Traditional Chinese Medicine question answering system(MMKGQA)was constructed.Results The average accuracy rate,average recall rate and average F1 value of the system were 97.93%,83.41%and 89.10%,respectively,through the question corpus test of the questionnaire survey.It shows that the system can answer the relevant questions of Marine Traditional Chinese Medicine well and has high practicability and feasibility.Conclusion This system can help common users to obtain the popular science knowledge of Marine Traditional Chinese Medicine and provide an effective knowledge service tool for the researchers of Marine Traditional Chinese Medicine to acquire relevant knowledge and help the research and development of Marine new drugs.
9.Congenital glycosylation disorder type Ⅱm caused by SLC35A2 mutations: a report of 3 cases and literature review
Linxiu ZHONG ; Fangyun LIU ; Donglei LIAO ; Li YANG ; Hailan HE ; Jing PENG
Chinese Journal of Neurology 2023;56(9):1034-1043
Objective:To summarize the clinical manifestations, gene variations, diagnosis and treatment of 3 cases with SLC35A2 variations characterized by congenital glycosylation disorder Ⅱm (CDG Ⅱm). Methods:A total of 3 patients admitted to the Department of Pediatrics of Xiangya Hospital of Central South University in China from 2018 to 2020 were examined in detail. The studies till January 2022 were searched with key words of "congenital disorders of glycosylation Ⅱm", " SLC35A2" and "CDG Ⅱm" in both English and Chinese in the databases of China National Knowledge Infrast Ructure (CNKI), Wanfang, Online Mendelian Inheritance in Man and PubMed, and the clinical manifestations, genetic variation, treatments and prognosis of patients with SLC35A2 mutation were summarized. Results:The patients all presented with intractable infantile spasm and global developmental delay, onset in infancy. A variety of antiepileptic treatments had temporary and partial efficacy. Otherwise, proband 2 and 3 presented with abnormal glutamic-pyruvic transaminase and increased platelets. Funduscopy showed dysplasia of the retinal pigment epithelium in both eyes, and they both received D-galactose treatment. A total of 22 relevant case reports, including 99 patients, were collected. The 99 patients all were heterozygous mutations, and a total of 75 different variation sites were reported. The clinical manifestations were characterized by global developmental delay or mental retardation ( n=89), epileptic seizure ( n=75), hypotonia ( n=57), facial deformity ( n=57), skeletal abnormality ( n=50), visual impairment ( n=42), elevated glutamic-pyruvic transaminase ( n=31), gastrointestinal symptoms ( n=28), skin deformity ( n=26), microcephaly ( n=23) and congenital heart disease ( n=12). Craniocerebral magnetic resonance imaging may be normal in the early stage. With age, magnetic resonance imaging may show abnormal white matter signals, brain atrophy, dysplasia of corpus callosum, delayed myelination, enlargement of lateral ventricle, brain stem atrophy and so on. Studies have shown that galactose treatment may be effective. Conclusions:SLC35A2 variants lead to CDG Ⅱm, whose clinical manifestations mainly include epileptic encephalopathy and global developmental delay. Multiple antiepileptic therapies can temporarily or partially control seizures, while oral galactose may improve the clinical symptoms, showing its prospect as a dietary therapy.
10.Intervention of Renal Fibrosis with Traditional Chinese Medicine by Regulating Intestinal Microecology Based on "Combination of State and Target"
Xuping LI ; Hailan MA ; Hongbin MA ; Jinhui WEI
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(4):185-191
Renal fibrosis is the main pathological foundation of chronic kidney diseases progressing to end-stage renal diseases. With complex pathogenic factors and prolonged disease course, it threatens the quality of life of patients and brings about heavy financial burden to medical care. In the instance of intestinal flora disturbance, the internal homeostasis is broken, resulting in various "imbalances". The "combination of state and target" endows the syndrome differentiation-based treatment of renal fibrosis with new connotation from the perspective of intestinal flora reconstruction and microbial diversity restoration. In addition, traditional Chinese medicine (TCM)-targeted intervention of intestinal microecology has unique advantages under the principle of "treating different diseases with the same method", which can guide the diagnosis and treatment of renal fibrosis. To be specific, TCM emphasizes macroscopic regulation of state and microscopic targeting. In view of the inflammatory response, accumulation of endotoxin, and excessive deposition of extracellular matrix (ECM) in the process of renal fibrosis, the strategies for treating this disease have been developed, such as alleviating dampness,removing turbid toxin, and relieving deficiency and stasis. Famous prescriptions in ancient books or compound Chinese medicine prescriptions, classical formulas, Chinese medicine monomers, or active components of Chinese medicine target intestinal microecology. Therefore, from the perspective of common pathogenic factors of renal diseases (renal fibrosis) or pathological product-intestinal microecological imbalance, this article combines TCM basic theory with modern medical pathogenesis, and summarizes the research on TCM intervention of renal fibrosis by regulating intestinal microecology and the scientific connotation of renal fibrosis, which is expected to provide ideas and methods for the product development and related preparations and in-depth molecular biological research.

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