1.Research progress in the mechanisms of radiation-induced skin injury
Yuhua TIAN ; Wenfeng GOU ; Feifei XU ; Yiliang LI ; Wenbin HOU
Chinese Journal of Radiological Health 2024;33(5):607-614
With the rapid development of radiotherapy technology, the therapeutic outcomes of tumor patients have improved significantly, enabling effective disease control. However, during radiotherapy, the skin as the first barrier of the human body is inevitably exposed to radiation, leading to superficial skin injury. This injury often manifests as blistering, cracking, bleeding, and ulceration, resulting in wounds that are difficult to heal and potentially affecting the effectiveness of the treatment. At present, the therapeutic effect of drugs on radiation-induced skin injury remains limited, and the development of new drugs depends on the elucidation of the mechanisms. Therefore, it is crucial to investigate the mechanisms of radiation-induced skin injury. This article reviews these mechanisms, including DNA damage, oxidative stress, inflammatory response, and vascular damage and fibrosis, and summarizes the therapeutic drugs and targeted proteins in recent years, aiming to provide a reference for the further development and clinical application of drugs for radiation-induced skin injury.
2.Research progress in the mechanisms of radiation-induced skin injury
Yuhua TIAN ; Wenfeng GOU ; Feifei XU ; Yiliang LI ; Wenbin HOU
Chinese Journal of Radiological Health 2024;33(5):607-614
With the rapid development of radiotherapy technology, the therapeutic outcomes of tumor patients have improved significantly, enabling effective disease control. However, during radiotherapy, the skin as the first barrier of the human body is inevitably exposed to radiation, leading to superficial skin injury. This injury often manifests as blistering, cracking, bleeding, and ulceration, resulting in wounds that are difficult to heal and potentially affecting the effectiveness of the treatment. At present, the therapeutic effect of drugs on radiation-induced skin injury remains limited, and the development of new drugs depends on the elucidation of the mechanisms. Therefore, it is crucial to investigate the mechanisms of radiation-induced skin injury. This article reviews these mechanisms, including DNA damage, oxidative stress, inflammatory response, and vascular damage and fibrosis, and summarizes the therapeutic drugs and targeted proteins in recent years, aiming to provide a reference for the further development and clinical application of drugs for radiation-induced skin injury.
3.Isolation,identification and treatment effectiveness evaluation of resistant Acinetobacter baumannii phage Abgy202162
Xun TIAN ; Wencai TAN ; Bi YANG ; Xiang LIU ; Wenfeng YU ; Xiaolan QI ; Yinhui JIANG
Acta Universitatis Medicinalis Anhui 2024;59(10):1742-1751
Objective To isolate a Acinetobacter baumannii(Ab)phage from underground sewage,study its prop-erties,and to provide a theoretical basis for phage treatment of Ab infection.Methods Double-layer agar tech-nique was used to isolate phages by using Ab GY-6 as the host strain.Biological characterization and therapeutic effect of the phage was tested.Genetic information of the phage was analyzed.Results Ab phage Abgy202162 was isolated.Transmission electron microscopy(TEM)analysis showed that the morphology of Abgy202162 exhibited an icosahedral structure.Biological characteristic analysis showed that the optimal multiplicity of infection was 1,the latent period was 5 min,and the burst size was approximately 520 PFU per cell.In addition,Abgy202162 re-mained stable at different concentrations of chloroform,pH,and temperatures.Sodium dodecyl sulfate-polyacryl-amide gel electrophoresis(SDS-PAGE)analysis showed that it contained 10 proteins with molecular weights ran-ging from 15 to 100 ku.The double-stranded(ds)DNA genome of Abgy202162 consisted of 40 889 bp and its G+C content was 38.85%.It contained 47 open reading frames(ORFs),of which 26 had specific functions,but no virulence related genes or antibiotic resistance genes were found.Phylogenetic analysis showed that Abgy202162 was a new phage in the Autographiviridae family,Beijerinkvirinae subfamily,and Friunavirus genus.Abgy202162 showed the ability to prevent Ab infection in the Galleria mellonella in vivo model.Conclusion The phage Ab-gy202162 has strong environmental tolerance and high safety,indicating its potential as an antibiotic alternative used in the treatment of infections caused by Ab.
4.Development and reliability, validity testing of college students' proactive aggression questionnaire
Yuguang YANG ; Wenfeng ZHU ; Xue TIAN ; Yongchao HUANG
Chinese Journal of Behavioral Medicine and Brain Science 2024;33(7):653-659
Objective:To develop college students' proactive aggression questionnaire (CPAQ) and test its reliability and validity.Methods:From March 2023 to April 2024, a questionnaire survey was conducted among 1 552 college students(618 individuals in Sample 1, 783 individuals in Sample 2, 151 individuals in Sample 3 (retested after a 6-month interval), and 49 individuals in Sample 4 (randomly selected from Sample 3)).The reliability and validity of CPAQ were assessed using SPSS 24.0 and Mplus 8.3 software through item analysis, exploratory factor analysis, confirmatory factor analysis, internal consistency reliability, test-retest reliability, compatibility validity, discriminant validity, and empirical validity.Results:The results of the project analysis showed that the 33 items in the CPAQ were significantly correlated with the total score( r=0.25-0.78, P<0.05), and item scores between the high and low group were significantly different (all P<0.001). Exploratory factor analysis retained 28 items, which belonged to three dimensions of proactive aggression (instrumental motivation, moral inhibition, and moral disengagement). The results of confirmatory factor analysis showed that the three-dimensional model of the questionnaire was well fitted ( χ2/ df=3.25, CFI=0.96, TLI=0.95, RMSEA=0.05, SRMR=0.06). The Cronbach's α coefficients for the total score of CPAQ and its sub dimensions were 0.93, 0.95, 0.89 and 0.75, respectively(all P<0.05). The test-retest reliability was 0.64, 0.63, 0.67 and 0.60, respectively(all P<0.01). In the compatibility validity test, the instrumental motivation dimension score was positively correlated with the proactive aggression dimension score of reactive-proactive aggression questionnaire(RPQ)( r=0.50, P<0.05), while moral inhibition dimension was negatively correlated with empathy and guilt scores( r=-0.30, -0.39, P<0.05). The dimension of moral disengagement was positively correlated with the score of the moral disengagement scale( r=0.58, P<0.05). In the discriminant validity test, the correlation of CAPQ and RPQ reactive aggression dimension score was not significant( r=0.08, P=0.16). In the criterion related validity test, the correlation coefficients between the score of CAPQ and each calibration questionnaire and scale were 0.70-0.83. In the empirical validity test, there was a significant difference in the different CPAQ score groups for proactive aggressive behavior(high group: (1.16±0.18), low group: (1.04±0.08), t=2.60, P<0.05). Conclusion:CPAQ has good discrimination, reliability, and validity, which could be used as a tool to measure proactive aggressive behavior among college students.
5.Parental involvement in shared decision-making for children with cancer: a Meta-synthesis of qualitative research
Yujing LI ; Yingxin BI ; Wenfeng TIAN
Chinese Journal of Modern Nursing 2024;30(15):1961-1969
Objective:To integrate qualitative research on the experience of parents of children with cancer participating in shared decision-making, so as to provide reference for medical and nursing staff to support the participation of parents of children with cancer in shared decision-making.Methods:The qualitative research on the experience of parents of children with cancer participating in shared decision-making was searched on China National Knowledge Infrastructure, WanFang Data, VIP, China Biology Medicine disc, PubMed, Web of Science, Cochrane Library, Embase, and CINAHL from the establishment of database to February 2023. The literature was evaluated using the quality evaluation criteria for qualitative research of the Australia Joanna Briggs Institute Evidence-Based Health Care Center. The aggregation integration method was used to integrate the results.Results:A total of 14 articles were included, with 56 themes extracted and categorized into nine categories, forming four integrated results, including strong willingness of parents of children with cancer to participate in shared decision-making, differences in the participation of parents of children with cancer in shared decision-making, obstacles to parents' participation in shared decision-making, and the need for multiple parties to support the participation of parents of children with cancer in shared decision-making.Conclusions:The participation of parents of children with cancer in shared decision-making needs to be based on the current situation of decision-making in the field of pediatric cancer in China, and a localized decision support system should be constructed. Medical and nursing staff should enhance their awareness of shared decision-making, solve the practical dilemma of parents of children with cancer participating in shared decision-making, meet their diverse information, emotional, and social needs, and provide supportive care.
6.A multi-center, double-blind, randomized, placebo- and positive-controlled phase II clinical study of benvitimod for the treatment of atopic dermatitis.
Lin CAI ; Yan ZHAO ; Min ZHENG ; Furen ZHANG ; Qing SUN ; Quanzhong LIU ; Jin HU ; Juan SHEN ; Jianzhong ZHANG
Chinese Medical Journal 2023;136(2):251-252
7.AGO and RDRP genes are involved in the stress response of Aspergillus flavus
Xiang Liu ; Bi Yang ; Xun Tian ; Jianhong Zhou ; Yonghui Liao ; Lingling Liu ; Wenfeng Yu ; Xiaolan Qi ; Yinhui Jiang
Acta Universitatis Medicinalis Anhui 2023;58(9):1442-1449
Objective :
To explore the role of Argonaute ( Ago) gene and RNA⁃Dependent RNA Polymerase (RDRP) gene of Aspergillus flavus in the growth and development about the RNAi mechanism .
Methods :
A. flavus Ago1 , Ago2 , RDRP1 , RDRP3 gene mutant strains were constructed by homologous recombination . The growth and development of the mutant strains were observed on potato dextrose agar(PDA) + uracil uridine (UU) medium inoculated with 3 μl 106 CFU/mL spores . 200 , 400 μg cell wall pressure agent conidored ( CR) , 0. 8 mol/L , 1 . 6 mol/L osmotic pressure agent NaCl , 2 mmol/L , 4 mmol/L oxidative pressure agent hydrogen peroxide (H2 O2 ) and 0. 01% , 0. 02% genomic damage agent methyl mesylate (MMS) were added to the Yeast extract Glucose Minimum (YGM) + UU medium to analyze the stress response of the mutant strains .
Results :
A. flavus mutant strains about ΔAgo1 , ΔAgo2 , ΔRDRP1 , ΔRDRP3 were successfully constructed and its growth and development were normal . The ΔAgo1 and ΔAgo2 strains reduced the stress effects on cell wall and osmotic pressure compared to the control . Ago1 gene deletion reduced the effect of H2 O2 , and conversely RDRP3 gene deletion increased the inhibition of H2 O2 . The Ago2 and RDRP1 strains reduced the effect on genetic damage agent . In addition , ΔRDRP1 increased the effect of osmotic stress .
Conclusion
The Ago1 , Ago2 , RDRP1 and RDRP3 genes of A. flavus are not in⁃ volved in the regulation of growth rate and asexual reproduction and can participate in the regulating of the host stress response to the environment .
8.Implementation status and prospects of nurse prescription rights at home and abroad
Yujing LI ; Wenfeng TIAN ; Yingxin BI
Chinese Journal of Modern Nursing 2023;29(34):4724-4729
This article summarized the overview of nurse prescription rights, its implementation status at home and abroad and facilitators in implementation process. The aim was to arouse the attention of the healthcare service system and medical and nursing workers to the development of nurse prescription rights, and promote the promotion and practice of nurse prescription rights in China.
9.HYD-PEP06 suppresses hepatocellular carcinoma metastasis, epithelial-mesenchymal transition and cancer stem cell-like properties by inhibiting PI3K/AKT and WNT/
Wei TIAN ; Jiatong LI ; Zhuo WANG ; Tong ZHANG ; Ying HAN ; Yanyan LIU ; Wenfeng CHU ; Yu LIU ; Baofeng YANG
Acta Pharmaceutica Sinica B 2021;11(6):1592-1606
HYD-PEP06, an endostatin-modified polypeptide, has been shown to produce effective anti-colorectal carcinoma effects through inhibiting epithelial-mesenchymal transition (EMT). However, whether HYD-PEP06 has similar suppressive effect on hepatocellular carcinoma (HCC) remained unknown. In this study, HYD-PEP06 inhibited metastasis and EMT but not proliferation
10.A double-blind, randomized, placebo- and positive-controlled phase III trial of 1% benvitimod cream in mild-to-moderate plaque psoriasis.
Lin CAI ; Gen-Hui CHEN ; Qian-Jin LU ; Min ZHENG ; Yu-Zhen LI ; Jin CHEN ; Jie ZHENG ; Fu-Ren ZHANG ; Jian-Bin YU ; Sen YANG ; Fu-Qiu LI ; Sheng-Xiang XIAO ; Qiu-Ning SUN ; Jin-Hua XU ; Xing-Hua GAO ; Hong FANG ; Tian-Wen GAO ; Fei HAO ; Quan-Zhong LIU ; Ya-Ting TU ; Ruo-Yu LI ; Bao-Xi WANG ; Dan-Qi DENG ; Qing-Shan ZHENG ; Hong-Xia LIU ; Jian-Zhong ZHANG
Chinese Medical Journal 2020;133(24):2905-2909
BACKGROUND:
Benvitimod cream, a novel synthetic small molecule, was effective in treating mild-to-moderate plaque psoriasis. We conducted a phase III clinical trial to assess the efficacy and safety of benvitimod cream in patients with mild-to-moderate plaque psoriasis.
METHODS:
We randomly assigned 686 patients (2:1:1) to receive 1% benvitimod cream, 0.005% calcipotriol ointment or placebo twice a day for 12 weeks. The primary efficacy end points were the percentage of patients with a 75% or greater reduction from baseline in the psoriasis area and severity index (PASI 75) score and with a score of 0 or 1 in static physician's global assessment (sPGA) at week 12.
RESULTS:
The results showed that 50.4% of patients in the benvitimod group achieved PASI 75, which was significantly higher than that in the calcipotriol (38.5%, P < 0.05) and placebo (13.9%, P < 0.05) groups. The proportion of patients achieving an sPGA score 0 or 1 was 66.3% in the benvitimod group and 63.9% in the calcipotriol group, which were both significantly higher than that in the placebo group (34%, P < 0.05). In the long-term follow-up study, 50.8% of patients experienced recurrence. After retreatment with 1% benvitimod, 73.3% of patients achieved an sPGA score of 0 or 1 again at week 52. Adverse events included application site irritation, follicular papules, and contact dermatitis. No systemic adverse reactions were reported.
CONCLUSION:
During this 12-week study, benvitimod cream was demonstrated with high effectiveness and safety in patients with mild-to-moderate plaque psoriasis.
TRIAL REGISTRATION
Chinese Clinical Trial Registry (ChiCTR), ChiCTR-TRC-13003259; http://www.chictr.org.cn/showprojen.aspx?proj=6300.
Double-Blind Method
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Follow-Up Studies
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Humans
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Ointments
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Psoriasis/drug therapy*
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Resorcinols
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Severity of Illness Index
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Stilbenes
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Treatment Outcome


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