Safety and anatomical outcome analysis after flow diverter coverage of the anterior cerebral artery.

OBJECTIVES: Few studies on ischemic complications and flow changes after a flow diverter covering the anterior cerebral artery. The purpose of the study was to explore the ischemic complications and anatomical alterations associated with the flow diverter after it covers the anterior cerebral artery. MATERIALS AND METHODS: In this single-center study, patients treated with FD covering the anterior cerebral artery at the First Affiliated Hospital of Zhengzhou University were retrospectively collected. The primary endpoint was ischemic complications related to the anterior cerebral artery. Secondary endpoints were anatomical changes in the anterior cerebral artery postoperatively and at follow-up. RESULTS: A total of 59 patients were included in this study. Four (6.8%) patients presented with ischemic stroke symptoms. Immediately after the procedure, complete occlusion of A1 and decreased blood flow was observed in 13 (22.0%) and 21 patients (35.6%), respectively. At follow-up, A1 artery was occluded in 34 patients (57.6%) and decreased blood flow was observed in 10 patients (16.9%). Symptoms of neurological deficits related to the anterior cerebral artery were not observed in all patients at follow-up. CONCLUSION: Coverage of A1 is safe, with a low incidence of ischemic stroke, when using an FD to treat aneurysms. Risk of reduced perfusion of the anterior cerebral artery postoperatively even if the anterior communicating artery is open. In cases with A1 occlusion, the blood flow in the distal the anterior cerebral artery can be adequately compensated by opening the anterior communicating artery and good vascular anastomoses.

Metadata of Evidence from Traditional Chinese Medicine Randomized Controlled Trials / 中国实验方剂学杂志

ObjectiveTo draft the Metadata of Evidence from Traditional Chinese Medicine Randomized Controlled Trials for standardizing thedata collection， storage， transmission， exchange， analysis， and evaluation of traditional Chinese medicine （TCM） studies. In addition to the application of conventional systematic review and meta-analysis， this draft will provide strong support for the development of automated systematic review， facilitate the efficient utilization of TCM clinical evidence， and underpin the evidence-based rapid decision-making in TCM. MethodThis study was structured into three stages. During the first stage （pre-research）， suggestions for formulating new standards were proposed based on comprehensive research and demonstration of views obtained from literature investigation and expert interviews. The second stage concentrated on drafting the standard by assembling a working group and crafting a draft solicitation document for metadata standards. At the third stage， feedback was sought from relevant institutions， organizations， and experts and scholars outside the research group via mail or other means to finalize the draft standard. ResultDuring the pre-research stage， a preliminary examination was conducted to assess the characteristics and current status of clinical research metadata standards， and the information was identified regarding the significance of formulating the standard， principles guiding metadata formulation， reference materials， and suggestions for metadata subset establishment. After establishing a working group and drafting the initial version of the standard， opinions from external experts were sought via email. Based on the comments， a third round of revisions was conducted， resulting in the finalization of a draft for the standard. The finalized version of the standard draft comprised 12 sections： preface， introduction， scope， normative reference documents， terms and abbreviations， principles and composition， metadata description method， metadata summary representation， metadata dictionary description， Extensible Markup Language （XML） markup example， JavaScript Object Notation （JSON） markup example， and references. Of these， the section of metadata summary representation/metadata dictionary description contained 6 metadata subsets， involving 20 metadata entities and 141 metadata elements. ConclusionThrough literature research， expert interviews， questionnaire surveys， standard drafting， and opinion solicitation， this study drafts the Metadata of Evidence from Traditional Chinese Medicine Randomized Controlled Trials. This draft plays a crucial role in standardizing TCM clinical research and advancing objective scientific evaluation and effective utilization of TCM.

Progress in the diagnosis and treatment of superficial cutaneous fungal infections in children / 中华实用儿科临床杂志

Superficial cutaneous fungal infections are caused by fungi infections that only invade fully keratinized tissues, such as the stratum corneum, hair, and nails.In clinical practice, tinea capitis is the most prevalent superficial cutaneous fungal infections in children, whereas the incidence of tinea corporis/cruris, tinea manuum/pedis, onychomycosis, and pityriasis versicolor is relatively low.This article aims to comprehensively discuss the clinical manifestations, diagnosis, and advancements in the treatment of superficial cutaneous fungal infections in children, focusing on each specific infection individually.

Correlation of the emm genotyping and virulence genes with the isolation sites of Group A Streptococcus strains from children with impetigo / 中华实用儿科临床杂志

Objective:To investigate the correlation of the emm genotypes and virulence genes with the isolation sites of Group A Streptococcus (GAS). Methods:It was a retrospective study.The specimens were collected from children with impetigo in Beijing Children′s Hospital, Capital Medical University from 2006 to 2008 for GAS isolation and identification.A total of 24 GAS strains were isolated from 16 children with impetigo, among which 7 pairs of strains were isolated from the throat and skin of 7 children, and 1 pair of strains was isolated from the vulva and skin of one child, and the remaining 8 GAS strains were isolated from the skin pus samples of 8 children.Polymerase chain reaction was applied to detect the emm genotypes and 13 virulence genes ( speA, speB, speC, speF, speG, speH, speI, speJ, speK, speL, speM, smeZ and ssa). The correlation of the emm genotypes and virulence genes with the isolation sites of GAS strains was analyzed. Results:In this study, four emm genotypes were detected, including emm1.0 (15/24), emm12.0 (4/24), emm22.0 (2/24) and emm160.0 (1/24), and one subtype emm12.19 (2/24) was detected as well.The carrying rates of 13 virulence genes speA, speB, speC, speF, speG, speH, speI, speJ, speK, speL, speM, smeZ and ssa were 58.3%, 100%, 91.7%, 100%, 50.0%, 12.5%, 54.2%, 66.7%, 16.7%, 25.0%, 12.5%, 100% and 91.7%, respectively.All strains carried 5 to 11 virulence genes and they all carried speB, speF and smeZ.There were significant differences in the carrying rate of speA and speJ among the strains with different emm genotypes (all P<0.05). There was no significant difference in the distribution of virulence genes between skin isolates and pharyngeal isolates, including the 5 pairs of strains carrying the emm1.0 genotype (all P>0.05). Conclusions:The distribution of virulence gene of GAS in children with impetigo is significantly correlated with the emm genotype, rather than the isolation site.

Analysis of electrocardiogram and echocardiography in key areas of unexplained sudden death in Yunnan Province / 中华地方病学杂志

Objective:To understand the electrocardiogram and echocardiography examination results of population in key areas of unexplained sudden death in Yunnan Province (referred to as Yunnan sudden death).Methods:From 2014 to 2022, electrocardiogram examination was performed on population (including same incident cases, relatives of the cases, villagers of the affected villages, and control individuals) in key areas of Yunnan sudden death from May to October each year. Echocardiography examination was performed on relatives of the cases and villagers of the affected villages, and the types of electrocardiogram and echocardiography changes were sorted out and analyzed.Results:Electrocardiogram examination was conducted on 1 same incident case, 241 relatives of the cases, 464 villagers of the affected villages, and 99 control individuals, respectively. The types of electrocardiogram changes in the same incident case were Q-T interval prolongation and sinus tachycardia. A total of 17 types of electrocardiogram changes were detected in the relatives of the cases, mainly including sinus arrhythmia (12.45%, 30/241), sinus bradycardia (11.20%, 27/241), and left axis deviation (8.30%, 20/241). A total of 21 types of electrocardiogram changes were detected in the villagers of the affected villages, mainly including left axis deviation (9.48%, 44/464), sinus bradycardia (8.19%, 38/464), and T-wave abnormalities (7.76%, 36/464). A total of 10 types of electrocardiogram changes were detected in the control individuals, mainly including sinus arrhythmia (12.12%, 12/99), T-wave abnormalities (9.09%, 9/99), and sinus bradycardia (7.07%, 7/99). Echocardiography examination was conducted on 49 relatives of the cases and 365 villagers of the affected villages, respectively. A total of 12 types of echocardiography changes were detected in the relatives of the cases, mainly including tricuspid regurgitation (18.37%, 9/49), decreased right ventricular diastolic function (8.16%, 4/49), aortic regurgitation (6.12%, 3/49), and atrial septal defect (6.12%, 3/49). A total of 15 types of echocardiography changes were detected in the villagers of the affected villages, mainly including tricuspid regurgitation (8.77%, 32/365), aortic regurgitation (6.85%, 25/365), and decreased left ventricular diastolic function (6.58%, 24/365).Conclusion:There are many types of changes in electrocardiogram and echocardiography in the population of key areas of Yunnan sudden death.

Relationship between plasma fibrinogen/serum albumin ratio and the degree of cerebral artery stenosis in patients with acute cerebral infarction / 中国综合临床

Objective:To investigate the correlation between plasma fibrinogen/serum albumin ratio (FAR) and the degree of cerebral artery stenosis in patients with acute cerebral infarction (ACI).Methods:Clinical data of 189 patients with acute cerebral infarction diagnosed and treated in the Department of Neurology of the First Affiliated Hospital of Hainan Medical College from January 2021 to March 2023 were selected for retrospective analysis. Digital subtraction angiography (DSA) was improved, and they were divided into four groups according to the degree of intracranial vascular stenosis according to NASCET grading method: no stenosis group (47 cases), mild stenosis group (45 cases), moderate stenosis group (39 cases) and severe stenosis and occlusion group (58 cases). The differences of basic data, plasma fibrinogen/serum albumin ratio (FAR) and other inflammatory indicators among all groups were compared, and the correlation between FAR level and the severity of cerebral artery stenosis was analyzed. Multivariate Logistic regression was used to explore the factors influencing to cerebral artery stenosis and ROC curve was used to evaluate the diagnostic value of FAR in the degree of cerebral artery stenosis in cerebral infarction patients.Results:There were significant differences in blood neutrophil (NEU), mean platelet volume (MPV), fibrinogen (FIB), fibrinogen (FIB), albumin (ALB) and FAR among the 4 groups (statistical values were H=11.50, H=8.44, F=5.16, H=30.93, H=40.38; all P<0.05). Correlation analysis showed a positive correlation between FAR and the degree of cerebral artery stenosis ( r=0.455, P<0.05). Multivariate Logistic regression showed that FAR was an independent risk factor for the degree of cerebral artery stenosis ( OR=1.445, 95% CI=1.261-1.655, P<0.001). Conclusion:FAR is an independent risk factor for cerebral artery stenosis in patients with acute cerebral infarction (ACI), and may be a new biomarker for predicting cerebral artery stenosis.

Improved grey water footprint model based on uncertainty analysis.

In the practical water resources management, the allowable thresholds of pollutants are not unique. However, the conventional grey water footprint (GWF) model cannot deal with this uncertainty in the controlling threshold. To solve this problem, an improved GWF model and pollution risk evaluation method is designed according to the uncertainty analysis theory and maximum entropy principle. In this model, GWF is defined as the mathematical expectation of virtual water to dilute the pollution load within the allowable threshold, and the pollution risk is deduced by the stochastic probability by which GWF exceeds the local water resources. And then, the improved GWF model is applied in the pollution evaluation of Jiangxi Province, China. The results show that: (1) From 2013 to 2017, the annual GWF values of Jiangxi Province were 136.36 billion m3, 143.78 billion m3, 143.77 billion m3, 169.37 billion m3 and 103.36 billion m3, respectively. And their pollution risk values and grades were 0.30 (moderate), 0.27 (moderate), 0.19 (low), 0.22 (moderate), and 0.16 (low), respectively. In 2015, the determinant of the GWF was TP, and TN in other years. (2) The improved GWF model has an evaluation result which is basically consistent with WQQR, and it is an effective water resource evaluation method to deal with the uncertainty in controlling thresholds. (3) Compared with the conventional GWF model, the improved GWF model has better capacities in identifying pollution grades and recognizing pollution risks.

Recent advance in prediction of spontaneous hemorrhagic transformation after acute ischemic stroke / 中华神经医学杂志

Hemorrhagic transformation (HT) is a serious complication after acute ischemic stroke, leading to increased adverse outcomes and mortality. In recent years, there has been an increasing number of studies in predicting HT occurrence, but most of the existing studies have focused on patients accepted reperfusion therapy, and few studies have predicted spontaneous HT. This article provides a review of epidemiology, risk factors, and available prediction models for prediction of spontaneous HT after acute ischemic stroke.

Effect of the comprehensive intervention measures on Yunnan unexplained sudden death in Dali Prefecture / 中华地方病学杂志

Objective:To evaluate the effect of comprehensive intervention measures on Yunnan unexplained sudden death (YUSD) in Dali Prefecture, Yunnan Province, and to provide scientific basis for improving the prevention and control measures.Methods:Since 2010, Yunnan Province had implemented comprehensive intervention measures in ward areas according to the etiological pattern of YUSD. In July 2019, 47 families with YUSD were selected as case families and 23 families without YUSD were selected as control families in 31 natural villages of Heqing, Xiangyun, Yunlong, Eryuan, Jianchuan, Binchuan and Nanjian counties of Dali Prefecture. A unified questionnaire was used to investigate the basic information, economic status, dietary structure, and health literacy of the families during the two periods of "the first sudden death case" and "the present".Results:The annual household income of the case families at present (median, 20 492.6 yuan) was significantly higher than that of the first sudden death case (3 883.4 yuan), and the difference was statistically significant ( Z = - 5.27, P < 0.001). At present, rice (76.6%, 36/47) was the main diet of the case families; at the time of the first sudden death case, 23.4% (11/47) of the case families could not eat enough, and there was no such situation in the case families at present. Compared with the time of the first sudden death case, the dietary habits of the case families at present were as follows: the proportion of eating Trogia venenata decreased from 19.0% (39/205) to 0 (0/190), the proportion of eating wild fruit decreased from 17.1% (35/205) to 9.5% (18/190), and the proportion of drinking raw water decreased from 55.1% (113/205) to 42.1% (80/190), and the differences were statistically significant (χ 2 = 22.37, 4.90, 6.86, P < 0.05). Lifestyle and health awareness: the proportion of those who washed their hands before meals and after using the toilet increased from 9.8% (20/205) to 41.6% (79/190), those who did not overwork increased from 16.6% (34/205) to 34.2% (65/190), and those who took good protection when spraying pesticides increased from 7.3% (15/205) to 21.6% (41/190), and the differences were statistically significant (χ 2 = 53.17, 33.94, 16.48, P < 0.001). Toilet habits: the proportion of using outdoor toilet decreased from 75.6% (155/205) to 9.5% (18/190), the difference was statistically significant (χ 2 = 175.21, P < 0.001). When the first sudden death case occurred, the proportions of eating Trogia venenata and using outdoor toilet in the case families were higher than those in the control families (χ 2 = 22.37, 23.70, P < 0.001), the proportions of those who washed their hands before meals and after using the toilet and those who did not overwork in the case families were lower than those in the control families (χ 2 = 7.38, 4.93, P < 0.05). Conclusions:The economic conditions, production and living conditions of YUSD areas in Dali Prefecture have been significantly improved, and the health literacy and health prevention awareness of the population have been greatly improved. Economic conditions and living standard, dietary structure and health literacy may be related factors of YUSD.

Mid-term clinical outcome of arthroscopic vertical mattress suturing for recurrent anterior shoulder dislocation combined with joint laxity / 中华创伤杂志

Objective:To investigate the mid-term clinical outcomes of arthroscopic vertical mattress suturing for shoulder recurrent anterior dislocation combined with joint laxity.Methods:A retrospective case series study was performed on the clinical data of 11 patients with recurrent anterior shoulder dislocation combined with joint laxity admitted to the First Affiliated Hospital, Army Medical University from January 2018 to September 2021. The patients included 10 males and 1 female, aged 18-38 years [(22.8±5.5)years]. All the patients received treatment with arthroscopic vertical mattress suturing. The Oxford shoulder instability score, Rowe shoulder instability score, and simple shoulder test (SST) score were compared before operation, at 6 months after operation and at the final follow-up. The degree of joint capsule laxity and length of capsular redundancy (evaluated by MRI) were compared before operation and at the final follow-up. The results of the supine apprehension test, re-dislocation and postoperative complications such as iatrogenic vascular and nerve injuries were observed at the final follow-up. Also, the correlation between the radiological changes in the joint capsule and the shoulder function was analyzed by Spearman correlation coefficient.Results:All the patients were followed up for 20-64 months [(40.7±18.6)months]. Before operation, at 6 months after surgery and at the final follow-up, the values of Oxford shoulder instability score were (41.2±4.7)points, (49.5±3.0)points and (57.6±3.0)points; the values of Rowe shoulder instability score were (28.6±9.5)points, (77.7±7.2)points and (94.1±10.9)points; and the values of SST score were (7.6±1.3)points, (9.8±1.0)points and (11.6±0.9)points, respectively. The Oxford shoulder instability score, Rowe shoulder instability score and SST at 6 months after operation and at the final follow-up were significantly better than those before operation, and those at the final follow-up were significantly better than those at 6 months after operation (all P<0.05). The MRI showed that the degree of joint capsular laxity and length of capsular redundancy were 1.5±0.2 and (19.7±2.5)mm before operation and were 1.3±0.2 and (12.9±3.7)mm at the final follow-up, respectively ( P<0.05 or 0.01). The supine apprehension test was negative at the final follow-up, with no re-dislocation or postoperative complications such as iatrogenic vascular or nerve injuries. Correlation analysis showed a negative correlation between the degree of joint capsular laxity and the Oxford shoulder instability score ( r=-0.62, P<0.05) and that of the length of capsular redundancy with the Oxford shoulder instability score ( r=-0.80, P<0.01), the Rowe shoulder stability score ( r=-0.73, P<0.01) and the SST score ( r=-0.75, P<0.01). Conclusions:Arthroscopic vertical mattress suturing has good mid-term clinical outcome for recurrent shoulder anterior dislocation combined with joint laxity, improving the shoulder function and reducing complications, wihch is associated with decreased joint capsule laxity and length of capsular redundancy.

Comparison of medium-term clinical effects of arthroscopic double row repair between traumatic and degenerative medium supraspinatus tear / 中华创伤骨科杂志

Objective:To compare the medium-term clinical effects of arthroscopic double row repair between traumatic and degenerative medium supraspinatus tear.Methods:A retrospective study was conducted to analyze the clinical data of 23 patients who had been treated for traumatic or degenerative medium supraspinatus tear by the same arthroscopic double row repair and postoperative rehabilitation at Sports Medicine Center, The First Hospital Affiliated to Army Medical University between January 2015 and August 2020. They were assigned into 2 groups according to different tears. In the traumatic group of 8 cases of traumatic medium supraspinatus tear, there were 5 males and 3 females with an age of (46.1±4.3) years and a tear size of (1.3±1.0) cm 2. In the degenerative group of 15 cases of degenerative medium supraspinatus tear, there were 4 males and 11 females with an age of (59.9±8.1) years and a tear size of (4.1±1.1) cm 2. At preoperation and the last follow-up, the shoulder pain was evaluated by visual analogue scale (VAS), and the shoulder function by American Shoulder and Elbow Surgeons (ASES) score, Constant-Murley score and Simple Shoulder Test (SST); the improvements in active range of motion (ROM) of the shoulder were recorded at the last follow-up. Results:The 2 groups were comparable because there was no significant difference between them in the general clinical data ( P>0.05). The traumatic and degenerative groups were followed up for (40.3±11.2) and (36.4±12.4) months, respectively. At the last follow-up, the improvements in range of anterior flexion and internal rotation vertebral rank in the degenerative group [55.3°±33.6° and (4.1±1.3) ranks] were significantly greater than those in the traumatic group [27.5°±22.5° and (2.3±1.9) ranks] ( P<0.05). At the last follow-up, the VAS, ASES, Constant-Murley, and SST scores in the degenerative group were improved respectively by (3.7±0.8), (40.9±14.0), (38.4±9.4), and (6.5±1.4) points compared with their preoperative values, significantly greater than those in the traumatic group [(2.3±0.7), (19.6±14.6), (19.2±7.9), and (3.8±0.7) points] ( P<0.05). Conclusion:Arthroscopic double row repair can achieve significant medium-term improvements in shoulder function for both traumatic and degenerative medium supraspinatus tears, but the improvements may be grater for the degenerative ones.

Comparison of efficacy and safety of biologics versus methotrexate in the treatment of severe pediatric plaque psoriasis / 中华皮肤科杂志

Objective:To compare the efficacy and safety of biologics versus methotrexate in the treatment of severe pediatric plaque psoriasis.Methods:A retrospective matched case-control study was carried out. Twenty children with severe plaque psoriasis from Beijing Children′s Hospital, Capital Medical University from June 2016 to November 2021 were included in this study, and the patients treated with biologics (adalimumab or secukinumab) were matched with those treated with methotrexate at a ratio of 1∶1 according to the psoriasis area and severity index (PASI) score and age. PASI, physician′s global assessment (PGA) , and body surface area (BSA) scores were assessed at weeks 4, 8 and 12 after the start of treatment, and adverse drug reactions were recorded. Statistical analysis was mainly carried out by using Mann-Whitney U test, Fisher′s exact test and generalized estimating equations. Results:At weeks 4 and 8, the proportions of patients achieving PASI75 and PASI90 were significantly higher in the biologics group (PASI75: 7/10, 10/10, PASI90: 5/10, 9/10, respectively) than in the methotrexate group (PASI75: 1/10, 5/10, PASI90: 0, 1/10, respectively; all P < 0.05) , while there was no significant difference between the biologics group and methotrexate group at week 12 (PASI75: 10/10 vs. 8/10, PASI90: 9/10 vs. 4/10, both P > 0.05) . There were no significant differences in the PASI, BSA or PGA scores between the two groups at baseline (all P > 0.05) , while the biologics group showed significantly decreased PASI and BSA scores at weeks 4, 8 and 12, and significantly decreased PGA score at week 8 compared with the methotrexate group (PASI: Z = 2.50, 3.56, 2.63, respectively; BSA: Z = 2.87, 3.57, 2.40, respectively; PGA: Z = 2.81; all P<0.05) . Analysis of changes over time showed that the PASI, PGA and BSA scores in the biologics group significantly decreased at weeks 4, 8 and 12 compared with those at baseline (all P<0.01) ; the PASI and PGA scores significantly decreased at weeks 8 and 12 compared with the corresponding scores at week 4 (all P<0.05) ; however, there were no significant differences in the PASI, PGA or BSA scores between week 12 and 8 (all P>0.05) . In the methotrexate group, the PASI, PGA and BSA scores at weeks 4, 8 and 12 were all significantly lower than the corresponding scores at the previous adjacent time points (all P<0.05) . There was no significant difference in the incidence of adverse reactions between the two groups ( P = 0.650) , and no serious adverse reactions occurred in either group. The main adverse reaction was infection in the biologics group, while infection and elevation of transaminase levels were common in the methotrexate group. Conclusion:Biologics and methotrexate were both effective and safe for the treatment of severe pediatricplaque psoriasis, and biologics facilitated rapider achievement of PASI75 and PASI90 compared with methotrexate.

Comparison of oral terbinafine versus itraconazole in the treatment of tinea capitis in children / 中华皮肤科杂志

Objective:To compare the efficacy and safety of oral terbinafine versus itraconazole in the treatment of pediatric tinea capitis.Methods:From January 2021 to December 2021, a randomized clinical trial was conducted among 53 children with tinea capitis in Beijing Children′s Hospital. These patients were randomly divided into 2 groups by using a random number table: terbinafine group treated with oral terbinafine at different doses (weight <20 kg, dose: 62.5 mg/d; weight 20 - 40 kg, dose: 125 mg/d; weight >40 kg, dose: 250 mg/d), while itraconazole group treated with oral itraconazole at doses of 3 - 5 mg·kg -1·d -1. Statistical analysis was performed using the SPSS 23.0 software, and enumeration data were compared between groups by using chi-square test or Fisher′s exact test. Results:Totally, 27 patients were treated with oral terbinafine, including 17 with tinea alba and 10 with kerion; 26 were treated with oral itraconazole, including 17 with tinea alba and 9 with kerion. After treatment, 14 (51.85%) patients were cured in the terbinafine group, including 5 with tinea alba and 9 with kerion, while 25 (96.15%) were cured in the itraconazole group, including 16 with tinea alba and 9 with kerion. The response rate was significantly higher in the itraconazole group than in the terbinafine group ( χ2 = 13.37, P < 0.001) . Conclusion:The efficacy of itraconazole was superior to that of terbinafine in the treatment of pediatric tinea alba, but their efficacy was equivalent in the treatment of pediatric kerion.

Identification of constituents in vitro and blood-absorbed ingredients of protective effect on acute liver injury from Yin Chen Hao decoction based on UPLC-QTOF/MS / 药学学报

To identify the active constituents in vitro and blood-absorbed ingredients in vivo from Yin Chen Hao decoction provides scientific evidence for probing its prevention and treatment mechanism on acute liver injury. An ultrahigh performance liquid chromatography quadrupole-time of flight-mass spectrometry (UPLC-QTOF/MS) method was applied for analysis of Yin Chen Hao decoction and the serum samples of mice with con-A induced acute liver injury after preventive oral administration for 14 days (the use of all laboratory animals in this study was approved by the Ethics Committee of the Naval Medical University, 19YF1459400). A total of 90 chemical constituents were identified from Yin Chen Hao decoction, mainly were flavonoids, terpenoids, tannins, quinones. 5 prototype compounds were identified in the serum, including chrysophanol, deoxyrhapontin-8-O-gallate, mussaenosidic acid, herniarin, emodin. The established UPLC-QTOF/MS method could efficiently and sensitively identify the constituents in vitro and blood-absorbed ingredients of Yin Chen Hao decoction, primarily clarify the material basis of its hepatoprotective effect, and provided a scientific basis for the quality marker selection and the pharmacodynamic material basis research on the decoction.

Screening of anti-SARS-CoV-2 ligands from Chinese herbs based on a dual-target surface plasmon resonance biosensor / 药学学报

The epidemic of COVID-19 has brought great challenges to the global public health prevention and control system combined with clinical diagnosis and treatment system, and it makes the development of effective antiviral drugs an important task in current pharmaceutical research. Traditional Chinese medicine (TCM) has played an important role in the prevention and control of COVID-19. Due to its numerous chemical components and various structural types, TCM becomes a natural library for searching for lead compounds against SARS-CoV-2. In this study, a novel dual-target surface plasmon resonance (SPR) biosensor was developed for S protein receptor binding domain (SRBD) and angiotensin converting enzyme 2 (ACE2) which are two key proteins in the process of SARS-CoV-2 invading cells according to characteristics of synergistic effects of multiple components and comprehensive regulation of multiple targets of TCM. The SPR biosensor was applied to screen and identify active components from six TCMs, and daidzin from Puerariae Lobatae Radix was identified to bind with SRBD and ACE2. The affinity constant (KD) of daidzin and ACE2 was 5.18 μmol·L-1 through the SPR affinity assay. Competitive ELISA assay showed that daidzin could inhibit the binding of SRBD and ACE2, and the inhibition rate of daidzin (20 μmol·L-1) was 38.6%. Molecular docking experiments further confirmed that daidzin had the best binding near the binding region of SRBD-ACE2 complex. This study shows that the dual-target SPR screening system is accurate and efficient, and is particularly suitable for screening of complex drug systems and effective substances study of TCM. It provides a material basis for exploring the mechanism of TCM active constituents against SARS-CoV-2, and provides a source of lead compounds for the development of anti-SARS-CoV-2 drugs.

Perspectives on molecular diagnosis and targeted therapy for complex vascular malformations in pediatrics / 中华预防医学杂志

Vascular malformations are due to abnormal development of blood and/or lymphatic vessels during embryonic life without endothelial cell proliferation. Most of the previous treatments were symptomatic methods as surgery and sclerotherapy because the pathogenic mechanism was not clearly understood. With advances in molecular biology, the pathogenesis of vascular malformations is thought to be related to inherited and/or somatic mutations that eventually activate the PI3K/ATK/mTOR, Ras/Raf/MEK/ERK pathways. Also, related studies have promoted the use of targeted inhibitors. This article provides a review of current causative genes and targeted drugs for pediatric vascular malformations, aiming to provide a basis for promoting accurate molecular diagnosis and precision targeted therapy for these diseases.

Analysis of clinical characteristics and treatment status of atopic dermatitis in a children's hospital in Beijing from 2015 to 2019 / 中华预防医学杂志

To analyze the clinical characteristics and treatment status of atopic dermatitis (AD) in children in the outpatient department of a children's hospital in Beijing from 2015 to 2019. This study used a cross-sectional study method to retrospectively analyze the data of AD patients who visited the Dermatology outpatient department of Beijing Children's Hospital, Capital Medical University, from April 2015 to April 2019. A total of 1 926 AD patients aged 0-17.5 years old living in Beijing and its surrounding areas were included, and the general situation, severity and distribution of AD disease, clinical characteristics and severity of AD, relevant influencing factors of AD onset, AD disease prognosis and treatment status were recorded. SAS 9.4, SPSS19.0, and R software were used for data processing, and descriptive statistical analysis, Chi-square test, Analysis of Variance, and correspondence analysis were used for statistical analysis. The results showed that the male to female ratio of AD patients in children included in this study was 1.4∶1; 79.0% (1 522/1 926), 86.1%(1 658/1 926), 91.3%(1 758/1 926), and 97.3%(1 907/1 926) of AD onset at the age of 6 months, 1 year, 2 years, and 5 years, respectively; mild of AD patients accounted for 13.2% (255/1 926)(SCORAD score 0-24), moderate of AD patients accounted for 50.1%(965/1 926) (SCORAD score 25-50), and severe of AD patients accounted for 36.7% (706/1 926)(SCORAD score>50).The age of severe AD patients were younger than mild and moderate AD patients. The face, head, trunk, and lower limbs were common areas of onset for moderate to severe AD, while the hands, feet, and ears were common areas of onset for severe AD patients. Temperature changes, hot water factors, mental and emotional states, and spring and winter were the main aggravation factors of AD;35.2% (678/1 926) aggravated and 61.8% (1 191/1 926) persistent. The more frequent bathing, the less severity of AD disease (χ2=29.791,P<0.001); 28.0% (520/1 856) of AD patients have no moisturizing habits, which were correlated with the severity of AD disease (χ2=15.908, P<0.05); the proportion of combined treatment medications in children with moderate to severe AD was significantly higher than mild AD patients. In conclusion, the patients with AD who went to specialist clinics were mainly moderate to severe patients and developed disease before the age of 5 years from 2015 to 2019.The severity of AD were mainly moderate to severe, and most of these patients had poor disease control. Traditional treatment plans had limitations. Identifying the clinical characteristics and treatment status of childhood AD would help us to carry out more targeted prevention and management work.

Perspectives on molecular diagnosis and targeted therapy for complex vascular malformations in pediatrics / 中华预防医学杂志

Vascular malformations are due to abnormal development of blood and/or lymphatic vessels during embryonic life without endothelial cell proliferation. Most of the previous treatments were symptomatic methods as surgery and sclerotherapy because the pathogenic mechanism was not clearly understood. With advances in molecular biology, the pathogenesis of vascular malformations is thought to be related to inherited and/or somatic mutations that eventually activate the PI3K/ATK/mTOR, Ras/Raf/MEK/ERK pathways. Also, related studies have promoted the use of targeted inhibitors. This article provides a review of current causative genes and targeted drugs for pediatric vascular malformations, aiming to provide a basis for promoting accurate molecular diagnosis and precision targeted therapy for these diseases.

Analysis of clinical characteristics and treatment status of atopic dermatitis in a children's hospital in Beijing from 2015 to 2019 / 中华预防医学杂志

To analyze the clinical characteristics and treatment status of atopic dermatitis (AD) in children in the outpatient department of a children's hospital in Beijing from 2015 to 2019. This study used a cross-sectional study method to retrospectively analyze the data of AD patients who visited the Dermatology outpatient department of Beijing Children's Hospital, Capital Medical University, from April 2015 to April 2019. A total of 1 926 AD patients aged 0-17.5 years old living in Beijing and its surrounding areas were included, and the general situation, severity and distribution of AD disease, clinical characteristics and severity of AD, relevant influencing factors of AD onset, AD disease prognosis and treatment status were recorded. SAS 9.4, SPSS19.0, and R software were used for data processing, and descriptive statistical analysis, Chi-square test, Analysis of Variance, and correspondence analysis were used for statistical analysis. The results showed that the male to female ratio of AD patients in children included in this study was 1.4∶1; 79.0% (1 522/1 926), 86.1%(1 658/1 926), 91.3%(1 758/1 926), and 97.3%(1 907/1 926) of AD onset at the age of 6 months, 1 year, 2 years, and 5 years, respectively; mild of AD patients accounted for 13.2% (255/1 926)(SCORAD score 0-24), moderate of AD patients accounted for 50.1%(965/1 926) (SCORAD score 25-50), and severe of AD patients accounted for 36.7% (706/1 926)(SCORAD score>50).The age of severe AD patients were younger than mild and moderate AD patients. The face, head, trunk, and lower limbs were common areas of onset for moderate to severe AD, while the hands, feet, and ears were common areas of onset for severe AD patients. Temperature changes, hot water factors, mental and emotional states, and spring and winter were the main aggravation factors of AD;35.2% (678/1 926) aggravated and 61.8% (1 191/1 926) persistent. The more frequent bathing, the less severity of AD disease (χ2=29.791,P<0.001); 28.0% (520/1 856) of AD patients have no moisturizing habits, which were correlated with the severity of AD disease (χ2=15.908, P<0.05); the proportion of combined treatment medications in children with moderate to severe AD was significantly higher than mild AD patients. In conclusion, the patients with AD who went to specialist clinics were mainly moderate to severe patients and developed disease before the age of 5 years from 2015 to 2019.The severity of AD were mainly moderate to severe, and most of these patients had poor disease control. Traditional treatment plans had limitations. Identifying the clinical characteristics and treatment status of childhood AD would help us to carry out more targeted prevention and management work.

Research progress in pH-responsive antibacterial nanomaterials for inhibiting oral plaque biofilms / 中华口腔医学杂志

pH-responsive antibacterial nanomaterials are a new type of nanomaterials that can selectively undergo structural changes and trigger drug release according to significant pH differences produced by the body under physiological and pathological conditions. The formation of acidic microenvironment in plaque is the key to the pathogenicity of oral plaque biofilm, which also creates conditions for the oral application of pH-responsive antibacterial nanomaterials. pH-responsive antibacterial nanomaterials can respond to changes in pH of plaque microenvironment and accurately control the release of antibacterial drugs, providing a new direction for improving drug efficacy and targeted antibacterial. The present article reviews the classification, mechanism and application of pH-responsive antibacterial nanomaterials in oral plaque inhibition.