1.Status of Clinical Practice Guideline Information Platforms
Xueqin ZHANG ; Yun ZHAO ; Jie LIU ; Long GE ; Ying XING ; Simeng REN ; Yifei WANG ; Wenzheng ZHANG ; Di ZHANG ; Shihua WANG ; Yao SUN ; Min WU ; Lin FENG ; Tiancai WEN
Medical Journal of Peking Union Medical College Hospital 2025;16(2):462-471
Clinical practice guidelines represent the best recommendations for patient care. They are developed through systematically reviewing currently available clinical evidence and weighing the relative benefits and risks of various interventions. However, clinical practice guidelines have to go through a long translation cycle from development and revision to clinical promotion and application, facing problems such as scattered distribution, high duplication rate, and low actual utilization. At present, the clinical practice guideline information platform can directly or indirectly solve the problems related to the lengthy revision cycles, decentralized dissemination and limited application of clinical practice guidelines. Therefore, this paper systematically examines different types of clinical practice guideline information platforms and investigates their corresponding challenges and emerging trends in platform design, data integration, and practical implementation, with the aim of clarifying the current status of this field and providing valuable reference for future research on clinical practice guideline information platforms.
2.Electroacupuncture Promotes Functional Recovery after Facial Nerve Injury in Rats by Regulating Autophagy via GDNF and PI3K/mTOR Signaling Pathway.
Jun-Peng YAO ; Xiu-Mei FENG ; Lu WANG ; Yan-Qiu LI ; Zi-Yue ZHU ; Xiang-Yun YAN ; Yu-Qing YANG ; Ying LI ; Wei ZHANG
Chinese journal of integrative medicine 2024;30(3):251-259
OBJECTIVE:
To explore the mechanism of electroacupuncture (EA) in promoting recovery of the facial function with the involvement of autophagy, glial cell line-derived neurotrophic factor (GDNF), and phosphatidylinositol-3-kinase (PI3K)/mammalian target of rapamycin (mTOR) signaling pathway.
METHODS:
Seventy-two male Sprague-Dawley rats were randomly allocated into the control, sham-operated, facial nerve injury (FNI), EA, EA+3-methyladenine (3-MA), and EA+GDNF antagonist groups using a random number table, with 12 rats in each group. An FNI rat model was established with facial nerve crushing method. EA intervention was conducted at Dicang (ST 4), Jiache (ST 6), Yifeng (SJ 17), and Hegu (LI 4) acupoints for 2 weeks. The Simone's 10-Point Scale was utilized to monitor the recovery of facial function. The histopathological evaluation of facial nerves was performed using hematoxylin-eosin (HE) staining. The levels of Beclin-1, light chain 3 (LC3), and P62 were detected by immunohistochemistry (IHC), immunofluorescence, and reverse transcription-polymerase chain reaction, respectively. Additionally, IHC was also used to detect the levels of GDNF, Rai, PI3K, and mTOR.
RESULTS:
The facial functional scores were significantly increased in the EA group than the FNI group (P<0.05 or P<0.01). HE staining showed nerve axons and myelin sheaths, which were destroyed immediately after the injury, were recovered with EA treatment. The expressions of Beclin-1 and LC3 were significantly elevated and the expression of P62 was markedly reduced in FNI rats (P<0.01); however, EA treatment reversed these abnormal changes (P<0.01). Meanwhile, EA stimulation significantly increased the levels of GDNF, Rai, PI3K, and mTOR (P<0.01). After exogenous administration with autophagy inhibitor 3-MA or GDNF antagonist, the repair effect of EA on facial function was attenuated (P<0.05 or P<0.01).
CONCLUSIONS
EA could promote the recovery of facial function and repair the facial nerve damages in a rat model of FNI. EA may exert this neuroreparative effect through mediating the release of GDNF, activating the PI3K/mTOR signaling pathway, and further regulating the autophagy of facial nerves.
Rats
;
Male
;
Animals
;
Rats, Sprague-Dawley
;
Electroacupuncture
;
Phosphatidylinositol 3-Kinase/metabolism*
;
Facial Nerve Injuries/therapy*
;
Phosphatidylinositol 3-Kinases/metabolism*
;
Beclin-1
;
Glial Cell Line-Derived Neurotrophic Factor
;
Signal Transduction
;
TOR Serine-Threonine Kinases/metabolism*
;
Autophagy
;
Mammals/metabolism*
3.Study on in vitro activity of cefcapene
Yun LI ; Feng XUE ; Yao-Yao LIU ; Bo ZHENG
The Chinese Journal of Clinical Pharmacology 2024;40(12):1728-1733
Objective To evalucate in vitro activity of cefcapene against clinical isolated pathogenic bacteria in recent three years in China.Methods The clinical isolates were collected and the minimal inhibitory concentrations(MICs)were determined by the microbroth dilution method.Results A total of 308 pathogenic bacteria over the period 2021-2023 were studied.Cefcapene exhibited excellent antibacterial activity against Streptococci and methicillin susceptible Staphylococcus aureus(MSSA),which was similar to penicillin and cefpodoxime,and better than cefuroxime,cefaclor and cefixime.Against gram-negative bacteria,cefcapene also showed better antibacterial activity,especially against non-extended spectrum β-lactamases(ESBLs)Escherichia coli,Haemophilus influenzae and Moraxella catarrhalis,were comparable to cefixime and cefpodoxime,better than cefuroxime and cefaclor.Conclusion Cefcapene showed excellent antibacterial activity against clinical isolates from community-acquired pneumonia,include streptococcus pneumonia,MSSA,Haemophilus influenzae and Moraxella catarrhalis in recent years in China,which identical with those reported in literature ten years ago in China and foreign.It is a highly effective oral cephalosporin suitable for adults and children with respiratory tract infection,otitis media,sinusitis,urinary tract infection and other outpatient infections.
4.Differential component analysis between Fructus Tritici Levis and Triticum aestivum based on qualitative and quantitative methods
Xuejiao LI ; Yu HU ; Yun CHEN ; Juan SHANG ; Zhenyang LI ; Yunhua FENG ; Jiandong ZOU ; Weifeng YAO ; Su LU ; Meijuan XU
China Pharmacy 2024;35(11):1296-1302
OBJECTIVE To analyze the compositional differences between Fructus Tritici Levis and Triticum aestivum, and to provide reference for identification and quality control of both. METHODS Twenty batches of Fructus Tritici Levis and three batches of T. aestivum were collected, and their fingerprints were acquired by high-performance liquid chromatography and the similarities were evaluated by the Evaluation System of Similarity of Chromatographic Fingerprints of Traditional Chinese Medicine (2012 version). Cluster analysis (CA), principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA) were performed to analyze the difference of Fructus Tritici Levis and T. aestivum from different regions, and the differential components were screened. The contents of the six identified components in Fructus Tritici Levis and T. aestivum were determined. RESULTS The similarities of the fingerprints of Fructus Tritici Levis ranged from 0.928 to 0.996, and the relative similarities of T. aestivum with Fructus Tritici Levis ranged from 0.761 to 0.773. A total of 19 common peaks were calibrated, and six components including linolenic acid, linoleic acid, 5-heptadecylresorcinol, 5-nonadodecylresorcinol, 5- heneicosylresorcinol, and 5-tricosylresorcinol were identified. The results of CA and PCA showed that Fructus Tritici Levis and T. aestivum could be clearly distinguished; the distribution of Fructus Tritici Levis from Anhui province was relatively concentrated. The results of OPLS-DA showed that linolenic acid, linoleic acid, and other six unknown compounds were the differential components between Fructus Tritici Levis and T. aestivum. The average contents of the six identified components in Fructus Tritici Levis were 0.100 9, 1.094 0, 0.005 1, 0.030 9, 0.098 2,and 0.024 8 mg/g, respectively; the contents of linolenic acid and linoleic acid in Fructus Tritici Levis were significantly higher than those in T. aestivum (P<0.05).CONCLUSIONS The established qualitative and quantitative methods are simple and reliable, and can be used for the identification and quality evaluation of Fructus Tritici Levis and T. aestivum. The identified differential components, such as linolenic acid and linoleic acid, can also provide clues for the differentiation and pharmacological study of Fructus Tritici Levis and T. aestivum.
5.Differential component analysis between Fructus Tritici Levis and Triticum aestivum based on qualitative and quantitative methods
Xuejiao LI ; Yu HU ; Yun CHEN ; Juan SHANG ; Zhenyang LI ; Yunhua FENG ; Jiandong ZOU ; Weifeng YAO ; Su LU ; Meijuan XU
China Pharmacy 2024;35(11):1296-1302
OBJECTIVE To analyze the compositional differences between Fructus Tritici Levis and Triticum aestivum, and to provide reference for identification and quality control of both. METHODS Twenty batches of Fructus Tritici Levis and three batches of T. aestivum were collected, and their fingerprints were acquired by high-performance liquid chromatography and the similarities were evaluated by the Evaluation System of Similarity of Chromatographic Fingerprints of Traditional Chinese Medicine (2012 version). Cluster analysis (CA), principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA) were performed to analyze the difference of Fructus Tritici Levis and T. aestivum from different regions, and the differential components were screened. The contents of the six identified components in Fructus Tritici Levis and T. aestivum were determined. RESULTS The similarities of the fingerprints of Fructus Tritici Levis ranged from 0.928 to 0.996, and the relative similarities of T. aestivum with Fructus Tritici Levis ranged from 0.761 to 0.773. A total of 19 common peaks were calibrated, and six components including linolenic acid, linoleic acid, 5-heptadecylresorcinol, 5-nonadodecylresorcinol, 5- heneicosylresorcinol, and 5-tricosylresorcinol were identified. The results of CA and PCA showed that Fructus Tritici Levis and T. aestivum could be clearly distinguished; the distribution of Fructus Tritici Levis from Anhui province was relatively concentrated. The results of OPLS-DA showed that linolenic acid, linoleic acid, and other six unknown compounds were the differential components between Fructus Tritici Levis and T. aestivum. The average contents of the six identified components in Fructus Tritici Levis were 0.100 9, 1.094 0, 0.005 1, 0.030 9, 0.098 2,and 0.024 8 mg/g, respectively; the contents of linolenic acid and linoleic acid in Fructus Tritici Levis were significantly higher than those in T. aestivum (P<0.05).CONCLUSIONS The established qualitative and quantitative methods are simple and reliable, and can be used for the identification and quality evaluation of Fructus Tritici Levis and T. aestivum. The identified differential components, such as linolenic acid and linoleic acid, can also provide clues for the differentiation and pharmacological study of Fructus Tritici Levis and T. aestivum.
6.Electrical Characteristics Response Study of Blood Flow Velocity and Blood Lactate Concentration Based on Electrical Impedance Tomography
Yun-Qian WANG ; Bo SUN ; Tong ZHAO ; An ZHANG ; Jia-Feng YAO
Chinese Journal of Analytical Chemistry 2024;52(4):531-540
Lactic acid produced by muscles during exercise training is transported to the liver for metabolism through the bloodstream.In this process,the lactate acid level increases with the increase of exercise intensity,and the concentration of lactate acid in interstitial matrix of muscle tissues increases subsequently,leading to muscle fatigue.Transcutaneous electrical nerve stimulation(TENS)is a widely used medical method for muscle relaxation and improving peripheral blood circulation.To monitor the potential of TENS to alleviate muscle fatigue,this study adopted electrical impedance tomography(EIT)method to visualize the alleviating effect of TENS on muscle fatigue by detecting the tissue electrical characteristics response caused by the changes in blood lactate concentration,a biomarker of muscle fatigue.An experimental platform was thus constructed to mimic the changes of blood lactate concentration(Cbl)in the muscle tissue model,and to measure the trend of the spatial-mean conductivity((σ))in the mimic model during the Cbl change.The blood flow velocity was closely related to the metabolic rate of the lactate in the blood.TENS could speed up blood flow and effectively reduced the lactate accumulation in muscle tissue.However,too fast blood flow velocity was prone to cause secondary ventricular fibrillation disease,which threatened the safety of human life.To avoid this threat,a real-time blood flow velocity mimic platform was developed in this study to monitor the(σ)changes caused by the changes in blood flow velocity(vph)in the vicinity of mimic blood vessels.The correlations between Cbl vs(σ),and vph vs(σ)in the mimic muscle tissue were verified by Pearson test.Pearson correlation analysis results showed a positive correlation between Cbl and(σ)(r=0.9113,p<0.05),and betweenvph and(σ)(r=0.9782,p<0.001).The approach presented here quantitatively assessed the potential of TENS stimulation-induced changes in lactate concentration and blood flow velocity for alleviating muscle fatigue through(σ).
7.Correlation between Bone Marrow Microvascular Density,Angio-genesis Factors and Bortezomib Resistance in Multiple Myeloma
Lin-Xiang LUO ; Jian-Jun YAO ; Yun-Feng CAI
Journal of Experimental Hematology 2024;32(5):1432-1437
Objective:To investigate the correlation between bone marrow microvascular density,angiogenesis factors and bortezomib resistance in multiple myeloma(MM).Methods:The data of 200 patients with MM treated in our hospital from January 2020 to August 2023 were retrospectively analyzed,and the patients with MM were divided into drug-resistant group(n=68)and non-drug-resistant group(n=132)according to their drug resistance during bortezomib treatment.The univariate and multivariate logistic analysis were used to screen the independent influencing factors of bortezomib resistance in MM patients during treatment.The receiver operating characteristic(ROC)curve and clinical decision curve(DCA)were used to evaluate the predictive performance and clinical application value of the risk prediction model,the consistency between the actual incidence rate and the predicted incidence rate was judged by validating the calibration chart,and the goodness-of-fit of the model was judged by H-L test.Results:68 of the 200 MM patients developed resistance and poor clinical efficacy during bortezomib treatment,and the clinical resistance rate of bortezomib was 34.0%.The results of multivariate analysis showed that high bone marrow microvessel density(MVD)and high bone marrow supernatant VEGF,HGF,and bFGF expression levels were independent risk factors for bortezomib resistance in MM patients(P<0.05).The area under the ROC curve(AUC)of the model jointly constructed by bone marrow MVD,serum VEGF,HGF,bFGF and TNF-α levels was 0.924,and its sensitivity and specificity were 92.6%and 78.8%,which were higher than those of the bone marrow MVD model(AUC=0.743)and the vasogenesis factor model(AUC=0.878).The calibration curve of the joint prediction model was close to the standard curve,indicating that the model is more consistent.The results of H-L goodness-of-fit test showed x2=14.748,P=0.164,the joint prediction model had a good fit.The DCA curve showed that the clinical net benefit of intervention in the range of 0.0~1.0 was greater than that of full intervention and no intervention.Conclusion:The prediction model based on bone marrow MVD and vasogenesis factors(VEGF,HGF,bFGF)in MM patients has higher clinical evaluation performance and predictive value.
8.Research progress on mechanism of interaction between traditional Chinese medicine and intestinal flora
Jing WU ; Wei-Yi TIAN ; Kun CAI ; Su-Fang ZHOU ; Yao-Feng LI ; Xiang-Yun CHEN ; Hai-Bing QIAN ; Sha-Sha YANG
Chinese Pharmacological Bulletin 2024;40(10):1823-1829
Modern Chinese medicine studies have confirmed that the interaction between traditional Chinese medicine(TCM)and intestinal flora is the key to the treatment of diseases with tradi-tional Chinese medicine.This interplay includes such activities as:traditional Chinese medicine can be metabolized by intestinal flora into effective components with different biological activities from its precursors;TCM chemicals improve the composition of gut microbiota,consequently ameliorating its dysfunction as well as associated pathological conditions;and gut microbiota mediate the interactions between the multiple chemicals in TCM.There-fore,it becomes an important way to understand the modern sci-entific connotation of traditional Chinese medicine theory to study the pharmacological mechanism of the efficacy of traditional Chi-nese medicine by targeting Gut microbiota.
9.Consistency of chemical constituents between formula granules and standard decoction of Coptidis Rhizoma
Dai-Liang ZHANG ; Xin-Na DONG ; Lei SHI ; Xiao-Di DONG ; Yong-Qiang LIN ; Rong-Fei ZHANG ; Jing-Hua ZHANG ; Yuan-Cheng YAO ; Feng-Chao ZHANG ; Gui-Yun CAO ; Zhao-Qing MENG
Chinese Traditional Patent Medicine 2024;46(9):2851-2858
AIM To investigate the consistency of chemical constituents between formula granules and standard decoction of Coptidis Rhizoma.METHODS Eighteen batches of standard decoctions were prepared,after which the extraction rate and contents,transfer rates of magnolflorine,jatrorrhizine,columbamine,epiberberine,coptisine,palmatine,berberin were determined,HPLC characteristic chromatograms were established.RESULTS There were 11 common peaks in the characteristic chromatograms of 18 batches of standard decoctions and 24 batches of formula granules with the similarities of 0.861-1.000,which were clusterd into two categories.The formula granules and standard decoction demonstrated approximated extraction rate and contents,transfer rates of index constituents.CONCLUSION The chemical constituents between formula granules and standard decoction of Coptidis Rhizoma display good consistency,which can provide references for the quality control,process research and clinical application of the former.
10.The relationship between classroom environment and myopia.
Xi Yan ZHANG ; Yong lin ZHOU ; Feng Yun ZHANG ; Yan WANG ; Wen Yi YANG ; Yao XIANG ; Xin WANG ; Qi HUANG ; Chen Wei PAN ; Jie YANG
Chinese Journal of Epidemiology 2023;44(4):598-606
Objective: Based on a cohort and intervention study of the Eastern Chinese Student Surveillance, Cohort and Intervention Study (ES-SCI), this research aims to explore the correlation between monitor of the school environment and longitudinal data on myopia and provide evidence for the government myopia intervention strategy. Methods: This survey adopts the stratified cluster sampling method with the school as the unit. Students from grade 1 to grade 3 were selected according to the whole class to monitor the school environment in the classroom. Students will use the full-automatic computer optometer (TOPCON RM800) to conduct optometry from 2019 to 2021 under the condition of mydriasis to perform refractive eye examinations. Meantime eye axis length monitoring was also conducted. Cox proportional risk regression model was used to explore the relationship between school environmental monitoring and the occurrence and development of students' myopia. Results: From 2019 to 2021, 2 670 students from 77 classrooms participated in the observation study. The students' diopter after right/left eye mydriasis decreased in varying degrees (P<0.001), and the axial length of the right/left eye increased in various degrees (P<0.001). The weighted qualified rate of per capita area of primary school classrooms increased from 18.0% in 2019 to 26.0% in 2021, the weighted average illuminance pass rate of blackboard surface increased from 23.8% in 2019 to 26.4% in 2021, and the weighted average illuminance pass rate of classroom table decreased from 86.7% in 2019 to 77.5% in 2021. The trend chi-square test was significant (P<0.05). Cox proportional risk regression showed that after correcting for the grade, gender, parental myopia, diet, sleep, near work (sitting posture, working time, electronic mobile equipment, eye exercises), and outdoor activities, the per capita area of 1.36- m2 was the protective factor of eye axis length (HR=0.778, 95%CI: 0.659-0.918, P=0.003); The average reflection ratio of blackboard 0.15-0.19 was the protective factor of eye axis length (HR=0.685, 95%CI: 0.592-0.793, P<0.001); The average illumination of the blackboard 150-, 300-, 500- lx was the protective factor of the eye axis length (HR=0.456, 95%CI: 0.534-0.761, P<0.001; HR=0.794, 95%CI: 0.705-0.895, P<0.001; HR=0.690, 95%CI: 0.619-0.768, P<0.001). The blackboard evenness 0.40-0.59 was the risk factor of eye axis length (HR=1.528, 95%CI: 1.018-2.293, P=0.041), and the blackboard evenness 0.80- was the protection factor of eye axis length (HR=0.542, 95%CI: 0.404-0.726, P<0.001). The evenness of the desktop 0.40-0.59 was the protective factor of eye axis length (HR=0.820, 95%CI: 0.698-0.965, P=0.017). The average illuminance of 150-, 300-, 500- lx was the protective factor of a diopter (HR=0.638, 95%CI: 0.534-0.761, P<0.001; HR=0.911, 95%CI: 0.848-0.978, P=0.011; HR=0.750, 95%CI: 0.702-0.801, P<0.001). The average illumination of desktop 500- lx was a protective factor of a diopter (HR=0.855, 95%CI: 0.763-0.958, P=0.007). Conclusion: School environmental monitoring indicators, such as meeting per capita area standards, passing blackboard, and desk top-related indicators, all play protective effects on myopia development in students.
Humans
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Mydriasis
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Myopia/prevention & control*
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Refraction, Ocular
;
Students
;
Surveys and Questionnaires
;
Schools

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