1.Characteristics and prevention and control strategies of combat trauma related infections:an open-source literature databases
Guoxing HUANG ; Jingyuan MA ; Hongwu YAO ; Jinlong WANG ; Di WU ; Meng WANG ; Xinlou LI
Chinese Journal of Nosocomiology 2025;35(16):2529-2534
OBJECTIVE By conducting evidence evaluation research on literatures,this study aims to reveal the o-verall characteristics and research hotspots in the field of combat trauma-related infections,ultimately providing data support for the prevention and control of such infections.METHODS Relevant research in this field was sys-tematically collected from open-source databases to construct a dataset.The overall characteristics,research hotspots,prevention and control strategies,and future challenges of trauma-related infections were summarized and analyzed.RESULTS From 2004 to 2024,184 papers were published.The United States contributed the most publications,with Uniformed Services University of the Health Sciences being the most productive research insti-tution and Professor Clinton K.Murray as the author with the highest number of publications.The top five key-words with the highest frequency were combat related injury,infection,Acinetobacter baumannii,epidemiology and management.Among the publicly published literature data on war trauma-related infections,blast injuries ac-counted for the largest proportion,mainly multi-site injuries,with limb injuries being the most common.Bacteri-al infections were more common than fungal infections,with gram-negative bacteria being predominant and A.baumannii being the most common.Besides early wound management and the use of antibacterial drugs,in-creased attention should be paid to infection prevention and control in austere environments and the development of novel countermeasures.These advancements are critical to address projected changes in combat trauma,inclu-ding increasingly complex injuries and substantially elevated risks of infection and antimicrobial resistance.CONCLUSION This study systematically presents research hotspots,developmental trends,and prospects in com-bat trauma-related infections through evidence evaluation study,providing novel perspectives for researchers and facilitating further development in this field.
2.Exploration of the regulatory mechanism of norcantharidin on sine oculis homeobox homolog 4 in colon cancer using transcriptome sequencing and bioinformatic
Fanqin Zhang ; Chao Wu ; Jingyuan Zhang ; Zhihong Huang ; Antony Stalin ; Yiyan Zhai ; Shuqi Liu ; Jiarui Wu
Journal of Traditional Chinese Medical Sciences 2025;2025(2):259-276
ObjectiveTo explore the key molecules regulated by norcantharidin (NCTD) in colon cancer treatment.MethodsWe used cell counting kit-8 and 5-ethnyl-2′-deoxyuridine/Hoechst staining assays to study the effects of NCTD on cell proliferation in colon cancer. Annexin V-fluorescein isothiocyanate/propidium iodide staining was used to evaluate apoptosis, whereas Transwell assays were conducted to evaluate migration and invasion. We performed RNA sequencing to analyze the changes in gene expression after treatment. Differential analysis was performed using differential expression sequencing 2 (Deseq2) in R. Cytoscape was used to construct a competing endogenous RNA (ceRNA) network and Gene Expression Omnibus (GEO) datasets were used to validate sine oculis homeobox homolog 4 (SIX4) expression in colon cancer tissues. Furthermore, the prognostic potential of SIX4 was evaluated using receiver-operating characteristic curves. We conducted an immune infiltration analysis to explore the SIX4 relationship with the immune microenvironment in colon cancer. Finally, SIX4 expression, pan-cancer prognosis, tumor mutation burden (TMB) correlations, microsatellite instability (MSI), and mismatch repair (MMR) were analyzed.ResultsNCTD inhibited colon cancer cell proliferation (P .0001), induced apoptosis (P = .0007), and suppressed the migration and invasion of colon cancer cells. The H19/miR-193b-3p/SIX4 axis was identified as the key ceRNA network involved in the anticancer activity of NCTD. SIX4 is highly expressed in colon cancer tissues, shortening patient survival and affecting immune infiltration. A pan-cancer analysis showed that SIX4 overexpression affects the survival of various cancers. Finally, we correlated SIX4 expression with TMB, MSI, and MMR expression.ConclusionNCTD inhibits the malignant behaviour of colon cancer cells. SIX4 is abnormally expressed in multiple tumor types, significantly affecting the overall survival of patients with cancer, and is a core regulatory target of NCTD in the treatment of colon cancer.
3.Pathogenicity analysis and genetic counseling for a hemizygous c.1042-10G>C variant of SLC9A7 gene.
Jingyuan WANG ; Jia HUANG ; Hongjie ZHU ; Lingxiao ZHOU ; Heng YANG ; Wenjie YANG ; Shuai CHEN ; Hongyan LIU
Chinese Journal of Medical Genetics 2025;42(10):1177-1182
OBJECTIVE:
To evaluate the clinical significance of a hemizygous c.1042-10G>C variant of the SLC9A7 gene NM_001257291.2) previously identified in individuals with neurodevelopmental disorders, and to provide an evidence-based guidance for prenatal genetic counseling.
METHODS:
Four families presented at the Medical Genetics Center of Henan Provincial People's Hospital between December 2022 and July 2024 were included in this study. Phenotypic information and biological samples were collected from family members. Genomic DNA was extracted and subjected to whole-exome sequencing and copy number variation analysis to identify candidate pathogenic variants. Sanger sequencing was performed for familial co-segregation analysis. Reverse-transcription PCR was used to assess the RNA splicing pattern of the variant in peripheral blood samples. Quantitative PCR was employed to analyze the expression profiles of various SLC9A7 transcripts in fetal brain tissue and peripheral blood samples. Pathogenicity of the variant was classified based on guidelines from the American College of Medical Genetics and Genomics (ACMG). This study was approved by the Medical Ethics Committee of Henan Provincial People's Hospital (Ethics No.: 2021-171).
RESULTS:
Six hemizygous males carrying the SLC9A7 c.1042-10G>C variant were identified among the four families, which included three adult males and two male infants with normal phenotypes. Only one affected male from family 3 exhibited global developmental delay, short neck, webbed neck, ocular dysplasia, and congenital corneal leukoma. He also had a history of perinatal asphyxia and carried an additional hemizygous variant HUWE1 c.12283C>G. Reverse-transcription PCR showed no aberrant splicing in heterozygous or hemizygous carriers compared to healthy controls, suggesting that the variant does not affect RNA splicing. Quantitative PCR revealed that NM_001257291.2 is the predominant transcript expressed in fetal brain tissue and peripheral blood.
CONCLUSION
The SLC9A7 c.1042-10G>C variant does not alter RNA splicing and is present in multiple phenotypically normal males, which supported its classification as a benign variant.
Humans
;
Male
;
Female
;
Genetic Counseling
;
Pedigree
;
Adult
;
DNA Copy Number Variations/genetics*
;
Sodium-Hydrogen Exchangers/genetics*
;
Exome Sequencing
4.Pathogenicity analysis of a novel PADI6 gene variant associated with female infertility.
Lingxiao ZHOU ; Jia HUANG ; Jingyuan WANG ; Heng YANG ; Wenjie YANG ; Shuai CHEN ; Hongyan LIU
Chinese Journal of Medical Genetics 2025;42(10):1239-1243
OBJECTIVE:
To investigate the clinical phenotype and genetic characteristics of an infertile woman carrying a novel PADI6 gene variant.
METHODS:
An infertile woman who visited the Medical Genetics Center of Henan Provincial People's Hospital on April 29, 2024 was selected as the study subject. Clinical data of the proband and her family members were collected. Peripheral blood samples were obtained from the proband and her husband for genomic DNA extraction. Whole-exome sequencing (WES) was performed. Candidate variant was verified among the family members by Sanger sequencing. The pathogenicity of candidate variant was classified according to the American College of Medical Genetics and Genomics (ACMG) Standards and Guidelines for the Interpretation of Sequence Variants. Relevant literature on the pathogenic variants of the PADI6 gene was reviewed for genotype-phenotype correlation analysis. This study was approved by the Medical Ethics Committee of Henan Provincial People's Hospital (Ethics No.: 2021-171).
RESULTS:
The proband was a 35-year-old woman who underwent two oocyte retrieval cycles, yielding a total of five oocytes, with all embryos arrested at day 3 post-fertilization. WES identified a homozygous PADI6 variant, c.367+4_367+7del. In vitro splicing assay confirmed that this variant can cause skipping of exon 3, leading to a frameshift and alterations in the protein structure or premature termination of translation. Literature review identified 12 relevant publications, and the PADI6 c.367+4_367+7del was determined to be a novel variant.
CONCLUSION
The homozygous PADI6 c.367+4_367+7del variant probably underlay the pathogenesis of infertility in the proband.
Humans
;
Female
;
Infertility, Female/genetics*
;
Adult
;
Protein-Arginine Deiminase Type 6/genetics*
;
Pedigree
;
Exome Sequencing
;
Mutation
5.Acute effects of blood flow restriction running warm-up on Achilles tendon morphology and function in basketball athletes
Jing LI ; Weimin PAN ; Jingyuan FAN ; Xiaoyu WEI ; Yan HUANG ; Huan FENG ; Longguo ZHANG ; Yingpeng JIANG ; Min LIU
Journal of Army Medical University 2025;47(18):2154-2162
Objective To determine the acute effects of blood flow restriction(BFR)running warm-up on Achilles tendon morphology and function in basketball players in order to provide a theoretical basis for optimizing warm-up protocols for military personnel and athletes susceptible to Achilles tendon injuries.Methods Twenty-seven male basketball players were subjected and asked to participate in 3 different running warm-up protocols:low-speed running(LSR),high-speed running(HSR),and BFR combined with LSR(BFR-LSR).The acute changes in Achilles tendon morphology,mechanical properties,and functional performance across the 3 testing sessions were analyzed and compared.Results Immediately after training,both HSR warm-up and BFR-LSR warm-up significantly improved Achilles tendon thickness,blood flow,stiffness,and gastrocnemius maximal voluntary isometric contraction(MVIC)when compared with LSR warm-up(P<0.05).No statistical differences were observed in above indicators between the BFR-LSR and HSR warm-ups(P>0.05).24 hours after training,compared with LSR warm-up,HSR warm-up still significantly improved Achilles tendon thickness,blood flow,stiffness,and gastrocnemius MVIC(P<0.05).Although BFR-LSR warm-up did not show statistically significant differences in these parameters compared to LSR warm-up,it still demonstrated positive trends.Immediately and 24 h after training,no obvious difference were found in jump performance among the 3 warm-up protocols(P>0.05),but,both BFR-LSR and HSR warm-ups exhibited superior performance than LSR warm-up.Conclusion Immediately after training,BFR-LSR warm-up demonstrates comparable effects to the HSR warm-up on improving Achilles tendon morphology and performance,as well as enhancing jump performance.However,its sustained and long-term effects require further investigation.
6.Epidemiological characteristics of enteritis due to norovirus in Guizhou Province, 2016-2023
Peishi YANG ; Jingyuan YANG ; He HUANG ; Chun YU ; Guanghai YAO
Chinese Journal of Epidemiology 2025;46(3):423-429
Objective:To understand the incidence and epidemiological characteristics of enteritis due to norovirus infection in Guizhou Province from 2016 to 2023, and provide reference for the prevention and control of enteritis caused by norovirus.Methods:The data were from National Notifiable Infectious Disease Reporting System of China Information System for Disease Control and Prevention. To collect the data of other infectious diarrhea cards in Guizhou from 2016 to 2023, which were annotated as enteritis due to norovirus and food-borne disease surveillance sentinel report in Guizhou, which were positive for norovirus detection. The data of cluster/outbreaks were from the Public Health Emergency Event Surveillance System and the field investigation reports of CDC at all levels. Descriptive epidemiological method was used to describe the characteristics of its three-dimension distribution, epidemic situation and pathogen spectrum. R 4.2.2 software was used for statistical analysis.Results:A total of 2 340 cases of enteritis due to norovirus were reported in Guizhou Province during this period, with an average annual reported incidence of 0.79/100 000, and the incidence showed an upward trend (trend χ2=1 723.80, P<0.001). The high incidence season is from October to March (winter and spring). The male to female ratio of the cases was 1.39∶1 (1 362∶978). A total 1 382 cases occurred in age group under 5 years old (59.06%) and 1 249 cases occurred in children living scatteredly (53.38%). The average annual reported incidence in 6 prefectures (muniipality)(1.15/100 000 in Qiandongnan Miao and Dong Autonomous Prefecture, 1.08/100 000 in Guiyang, 1.07/100 000 in Liupanshui, 1.06/100 000 in Qianxinan Buyi and Miao Autonomous Prefecture, 0.91/100 000 in Qiannan Buyi and Miao Autonomous Prefecture and 0.89/100 000 in Tongren) in Guizhou Province was higher than provincial level, and the affected areas gradually expanded from southeastern counties (districts) to western and northern counties (districts). The average annual reported incidence rate was higher in urban area (1.12/100 000) than in rural area (0.39/100 000). A total of 31 cluster/outbreaks of enteritis due to norovirus were reported, in which 83.87% (26/31) occurred in child care settings, primary and secondary schools, in which 74.19% (23/31) were caused by human-to-human transmission. In the 2 340 cases, 2 147 were laboratory diagnosed (91.75%), and 193 were clinically diagnosed (8.25%). In the laboratory diagnosed cases, 2 026 (94.36%) were caused by single norovirus infection and 121 (5.64 %) were caused by mixed infection. Conclusions:On the whole, the incidence of enteritis due to norovirus in Guizhou Province was on the rise from 2016 to 2023, and winter and spring were the high incidence seasons. Effective prevention and control measures should be taken for key populations, key regions and key places, and multi-channel and multi-pathogen surveillance and health education should be strengthened.
7.Effect and mechanism of Andrias davidianus skin mucopolysaccharides on full-thickness skin defect wound healing in diabetic mice
Weiming GOU ; Peng YANG ; Yifei LU ; Xiaorong ZHANG ; Yiming QIN ; Jingyuan LI ; Yong HUANG ; Qing ZHANG ; Gaoxing LUO
Chinese Journal of Burns 2025;41(2):127-136
Objective:To explore the effect and mechanism of Andrias davidianus skin mucopolysaccharides (ASMP) on full-thickness skin defect wound healing in diabetic mice. Methods:This study was an experimental study. The ASMP with polysaccharide content of (70.0±0.3)% was prepared; the proliferation activity of human umbilical vein endothelial cells (HUVECs) was detected by cell counting kit-8, showing that the optimal concentration of ASMP was 0.05 mg/mL. The HUVECs were taken and divided into blank control group, vascular endothelial growth factor (VEGF) group, and ASMP group according to the random number table method (the same grouping method below), which were cultured with conventional medium and the media containing 50 ng/mL VEGF and 0.05 mg/mL ASMP, respectively, and then cultured under hypoxic (with volume fraction of oxygen being 5%) and normal-oxygen conditions for 12 hours, and the length of tube formation was observed. Human monocytic leukemia cells were induced with phorbol ester to differentiate into M0 macrophages. These cells were then divided into blank control group, lipopolysaccharide (LPS) group, and ASMP group, which were cultured respectively using conventional medium, LPS-containing medium followed by conventional medium, and LPS-containing medium followed by 0.05 mg/mL ASMP-containing medium. After 48 hours of culture, the expressions of CD86 and CD206 proteins (expressed as relative fluorescence intensity, the same below) were measured by immunofluorescence, and the mRNA expression levels of arginase-1 (Arg1) and CD206 were detected by real-time fluorescence quantitative reverse transcription polymerase chain reaction. Eighteen male C57 mice aged 8-10 weeks were used, and diabetic model was successfully established using streptozotocin combined with a high-fat and high-sugar diet. Full-thickness skin defect wounds were created on the backs of the mice, and the mice were divided into blank control group, alginate dressing group, and ASMP group (with 6 mice in each group), which were treated with physiological saline, alginate dressing, and ASMP, respectively. Wound healing was observed on post injury day (PID) 3, 7, 10, and 14, and the wound healing rates of mice were calculated. On PID 7, the expressions of CD31 and CD206 proteins in the wound tissue of mice were observed by immunofluorescence. On PID 14, the thickness of granulation tissue in wounds of mice was observed by hematoxylin-eosin staining. The sample size for all experiments was 3.Results:After 12 hours of culture in normal-oxygen condition, compared with that in blank control group, the tube formation length of HUVECs in VEGF and ASMP groups was significantly increased (with q values of 10.08 and 16.91, respectively, P<0.05). After 12 hours of culture in hypoxic condition, compared with that in blank control group, the tube formation length of HUVECs in VEGF and ASMP groups was significantly increased (with q values of 11.61 and 16.91, respectively, P<0.05); compared with that in VEGF group, the tube formation length of HUVECs in ASMP group was significantly increased ( q=5.30, P<0.05). After 48 hours of culture, the relative fluorescence intensity of CD206 protein in M0 macrophages in ASMP group was 31.90±1.76, significantly higher than 1.00±0.25 in blank control group and 2.21±0.42 in LPS group (with q values of 50.75 and 48.75, respectively, both P values <0.05); the relative fluorescence intensity of CD86 protein was 5.82±0.63, significantly lower than 53.73±4.61 in LPS group ( q=30.90, P<0.05). After 48 hours of culture, the mRNA expressions of Arg1 and CD206 in M0 macrophages in ASMP group were significantly higher than those in blank control group (with q values of 35.02 and 13.09, respectively, P<0.05) and LPS group (with q values of 32.24 and 11.24, respectively, P<0.05). On PID 3, there was no statistically significant difference in intercomparison in the wound healing rate of mice among the blank control, alginate dressing, and ASMP groups ( P>0.05). Compared with those in blank control group, the wound healing rates of mice in alginate dressing group on PID 10 and 14 were significantly increased (with q values of 11.76 and 12.50, respectively, P<0.05), and the wound healing rates of mice in ASMP group on PID 7, 10, and 14 were significantly increased (with q values of 5.84, 15.90, and 14.96, respectively, P<0.05); compared with those in alginate dressing group, the wound healing rates of mice in ASMP group on PID 7 and 10 were significantly increased (with q values of 4.77 and 4.14, respectively, P<0.05). On PID 7, the relative fluorescence intensity of CD31 protein in wound tissue of mice in alginate dressing and ASMP groups was significantly stronger than that in blank control group (with q values of 7.63 and 16.85, respectively, P<0.05); the relative fluorescence intensity of CD31 protein in wound tissue of mice in ASMP group was significantly stronger than that in alginate dressing group ( q=9.22, P<0.05). On PID 7, the relative fluorescence intensity of CD206 protein in wound tissue of mice in alginate dressing and ASMP groups was significantly stronger than that in blank control group (with q values of 8.76 and 29.36, respectively, P<0.05), and the relative fluorescence intensity of CD206 protein in wound tissue of mice in ASMP group was significantly stronger than that in alginate dressing group ( q=20.61, P<0.05). On PID 14, the wound granulation tissue of mice in ASMP group was thicker compared with that in blank control group and alginate dressing group. Conclusions:ASMP can significantly enhance the ability of new blood vessel formation and optimize the immune microenvironment by promoting HUVEC tube formation as well as inducing macrophages to polarize toward the M2 type, thereby accelerating full-thickness skin defect wound healing in diabetic mice.
8.Epidemiological characteristics of enteritis due to norovirus in Guizhou Province, 2016-2023
Peishi YANG ; Jingyuan YANG ; He HUANG ; Chun YU ; Guanghai YAO
Chinese Journal of Epidemiology 2025;46(3):423-429
Objective:To understand the incidence and epidemiological characteristics of enteritis due to norovirus infection in Guizhou Province from 2016 to 2023, and provide reference for the prevention and control of enteritis caused by norovirus.Methods:The data were from National Notifiable Infectious Disease Reporting System of China Information System for Disease Control and Prevention. To collect the data of other infectious diarrhea cards in Guizhou from 2016 to 2023, which were annotated as enteritis due to norovirus and food-borne disease surveillance sentinel report in Guizhou, which were positive for norovirus detection. The data of cluster/outbreaks were from the Public Health Emergency Event Surveillance System and the field investigation reports of CDC at all levels. Descriptive epidemiological method was used to describe the characteristics of its three-dimension distribution, epidemic situation and pathogen spectrum. R 4.2.2 software was used for statistical analysis.Results:A total of 2 340 cases of enteritis due to norovirus were reported in Guizhou Province during this period, with an average annual reported incidence of 0.79/100 000, and the incidence showed an upward trend (trend χ2=1 723.80, P<0.001). The high incidence season is from October to March (winter and spring). The male to female ratio of the cases was 1.39∶1 (1 362∶978). A total 1 382 cases occurred in age group under 5 years old (59.06%) and 1 249 cases occurred in children living scatteredly (53.38%). The average annual reported incidence in 6 prefectures (muniipality)(1.15/100 000 in Qiandongnan Miao and Dong Autonomous Prefecture, 1.08/100 000 in Guiyang, 1.07/100 000 in Liupanshui, 1.06/100 000 in Qianxinan Buyi and Miao Autonomous Prefecture, 0.91/100 000 in Qiannan Buyi and Miao Autonomous Prefecture and 0.89/100 000 in Tongren) in Guizhou Province was higher than provincial level, and the affected areas gradually expanded from southeastern counties (districts) to western and northern counties (districts). The average annual reported incidence rate was higher in urban area (1.12/100 000) than in rural area (0.39/100 000). A total of 31 cluster/outbreaks of enteritis due to norovirus were reported, in which 83.87% (26/31) occurred in child care settings, primary and secondary schools, in which 74.19% (23/31) were caused by human-to-human transmission. In the 2 340 cases, 2 147 were laboratory diagnosed (91.75%), and 193 were clinically diagnosed (8.25%). In the laboratory diagnosed cases, 2 026 (94.36%) were caused by single norovirus infection and 121 (5.64 %) were caused by mixed infection. Conclusions:On the whole, the incidence of enteritis due to norovirus in Guizhou Province was on the rise from 2016 to 2023, and winter and spring were the high incidence seasons. Effective prevention and control measures should be taken for key populations, key regions and key places, and multi-channel and multi-pathogen surveillance and health education should be strengthened.
9.Characteristics and prevention and control strategies of combat trauma related infections:an open-source literature databases
Guoxing HUANG ; Jingyuan MA ; Hongwu YAO ; Jinlong WANG ; Di WU ; Meng WANG ; Xinlou LI
Chinese Journal of Nosocomiology 2025;35(16):2529-2534
OBJECTIVE By conducting evidence evaluation research on literatures,this study aims to reveal the o-verall characteristics and research hotspots in the field of combat trauma-related infections,ultimately providing data support for the prevention and control of such infections.METHODS Relevant research in this field was sys-tematically collected from open-source databases to construct a dataset.The overall characteristics,research hotspots,prevention and control strategies,and future challenges of trauma-related infections were summarized and analyzed.RESULTS From 2004 to 2024,184 papers were published.The United States contributed the most publications,with Uniformed Services University of the Health Sciences being the most productive research insti-tution and Professor Clinton K.Murray as the author with the highest number of publications.The top five key-words with the highest frequency were combat related injury,infection,Acinetobacter baumannii,epidemiology and management.Among the publicly published literature data on war trauma-related infections,blast injuries ac-counted for the largest proportion,mainly multi-site injuries,with limb injuries being the most common.Bacteri-al infections were more common than fungal infections,with gram-negative bacteria being predominant and A.baumannii being the most common.Besides early wound management and the use of antibacterial drugs,in-creased attention should be paid to infection prevention and control in austere environments and the development of novel countermeasures.These advancements are critical to address projected changes in combat trauma,inclu-ding increasingly complex injuries and substantially elevated risks of infection and antimicrobial resistance.CONCLUSION This study systematically presents research hotspots,developmental trends,and prospects in com-bat trauma-related infections through evidence evaluation study,providing novel perspectives for researchers and facilitating further development in this field.
10.Effect and mechanism of Andrias davidianus skin mucopolysaccharides on full-thickness skin defect wound healing in diabetic mice
Weiming GOU ; Peng YANG ; Yifei LU ; Xiaorong ZHANG ; Yiming QIN ; Jingyuan LI ; Yong HUANG ; Qing ZHANG ; Gaoxing LUO
Chinese Journal of Burns 2025;41(2):127-136
Objective:To explore the effect and mechanism of Andrias davidianus skin mucopolysaccharides (ASMP) on full-thickness skin defect wound healing in diabetic mice. Methods:This study was an experimental study. The ASMP with polysaccharide content of (70.0±0.3)% was prepared; the proliferation activity of human umbilical vein endothelial cells (HUVECs) was detected by cell counting kit-8, showing that the optimal concentration of ASMP was 0.05 mg/mL. The HUVECs were taken and divided into blank control group, vascular endothelial growth factor (VEGF) group, and ASMP group according to the random number table method (the same grouping method below), which were cultured with conventional medium and the media containing 50 ng/mL VEGF and 0.05 mg/mL ASMP, respectively, and then cultured under hypoxic (with volume fraction of oxygen being 5%) and normal-oxygen conditions for 12 hours, and the length of tube formation was observed. Human monocytic leukemia cells were induced with phorbol ester to differentiate into M0 macrophages. These cells were then divided into blank control group, lipopolysaccharide (LPS) group, and ASMP group, which were cultured respectively using conventional medium, LPS-containing medium followed by conventional medium, and LPS-containing medium followed by 0.05 mg/mL ASMP-containing medium. After 48 hours of culture, the expressions of CD86 and CD206 proteins (expressed as relative fluorescence intensity, the same below) were measured by immunofluorescence, and the mRNA expression levels of arginase-1 (Arg1) and CD206 were detected by real-time fluorescence quantitative reverse transcription polymerase chain reaction. Eighteen male C57 mice aged 8-10 weeks were used, and diabetic model was successfully established using streptozotocin combined with a high-fat and high-sugar diet. Full-thickness skin defect wounds were created on the backs of the mice, and the mice were divided into blank control group, alginate dressing group, and ASMP group (with 6 mice in each group), which were treated with physiological saline, alginate dressing, and ASMP, respectively. Wound healing was observed on post injury day (PID) 3, 7, 10, and 14, and the wound healing rates of mice were calculated. On PID 7, the expressions of CD31 and CD206 proteins in the wound tissue of mice were observed by immunofluorescence. On PID 14, the thickness of granulation tissue in wounds of mice was observed by hematoxylin-eosin staining. The sample size for all experiments was 3.Results:After 12 hours of culture in normal-oxygen condition, compared with that in blank control group, the tube formation length of HUVECs in VEGF and ASMP groups was significantly increased (with q values of 10.08 and 16.91, respectively, P<0.05). After 12 hours of culture in hypoxic condition, compared with that in blank control group, the tube formation length of HUVECs in VEGF and ASMP groups was significantly increased (with q values of 11.61 and 16.91, respectively, P<0.05); compared with that in VEGF group, the tube formation length of HUVECs in ASMP group was significantly increased ( q=5.30, P<0.05). After 48 hours of culture, the relative fluorescence intensity of CD206 protein in M0 macrophages in ASMP group was 31.90±1.76, significantly higher than 1.00±0.25 in blank control group and 2.21±0.42 in LPS group (with q values of 50.75 and 48.75, respectively, both P values <0.05); the relative fluorescence intensity of CD86 protein was 5.82±0.63, significantly lower than 53.73±4.61 in LPS group ( q=30.90, P<0.05). After 48 hours of culture, the mRNA expressions of Arg1 and CD206 in M0 macrophages in ASMP group were significantly higher than those in blank control group (with q values of 35.02 and 13.09, respectively, P<0.05) and LPS group (with q values of 32.24 and 11.24, respectively, P<0.05). On PID 3, there was no statistically significant difference in intercomparison in the wound healing rate of mice among the blank control, alginate dressing, and ASMP groups ( P>0.05). Compared with those in blank control group, the wound healing rates of mice in alginate dressing group on PID 10 and 14 were significantly increased (with q values of 11.76 and 12.50, respectively, P<0.05), and the wound healing rates of mice in ASMP group on PID 7, 10, and 14 were significantly increased (with q values of 5.84, 15.90, and 14.96, respectively, P<0.05); compared with those in alginate dressing group, the wound healing rates of mice in ASMP group on PID 7 and 10 were significantly increased (with q values of 4.77 and 4.14, respectively, P<0.05). On PID 7, the relative fluorescence intensity of CD31 protein in wound tissue of mice in alginate dressing and ASMP groups was significantly stronger than that in blank control group (with q values of 7.63 and 16.85, respectively, P<0.05); the relative fluorescence intensity of CD31 protein in wound tissue of mice in ASMP group was significantly stronger than that in alginate dressing group ( q=9.22, P<0.05). On PID 7, the relative fluorescence intensity of CD206 protein in wound tissue of mice in alginate dressing and ASMP groups was significantly stronger than that in blank control group (with q values of 8.76 and 29.36, respectively, P<0.05), and the relative fluorescence intensity of CD206 protein in wound tissue of mice in ASMP group was significantly stronger than that in alginate dressing group ( q=20.61, P<0.05). On PID 14, the wound granulation tissue of mice in ASMP group was thicker compared with that in blank control group and alginate dressing group. Conclusions:ASMP can significantly enhance the ability of new blood vessel formation and optimize the immune microenvironment by promoting HUVEC tube formation as well as inducing macrophages to polarize toward the M2 type, thereby accelerating full-thickness skin defect wound healing in diabetic mice.


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