1. Ligustilide delays senescence of auditory cortex in mice by inhibiting ferritinophagy
Ying-Dong ZHOU ; Meng-Xian ZHANG ; Qing-Ling WANG ; Hao-Ran KANG ; Zhi-Cheng ZHANG ; Xiang-Dong GUO ; Qing-Lin WANG ; Ya-Min LIU
Chinese Pharmacological Bulletin 2024;40(3):455-461
Aim To investigate the mechanism of ligu aged 2 months of the same strain were used as the constilide (LIG) in delaying the senescence of auditory trol (Ctrl) group. Auditory brainstem response test was cortex and treating central presbycusis. Methods used to detect the auditory threshold of mice before and Forty C57BL/6J mice aged 13 months were randomly di after treatment. Levels of serum MDA and activity of vided into ligustilide low-dose(L-LIG) group, ligustil serum SOD were detected to display the level of oxidative ide medium-dose (M-LIG) group, ligustilide high-dose stress. The pathological changes of auditory cortex were (H-LIG) group and aging (Age) group, and 10 mice observed by HE staining. Ferroptosis was observed by
2.Calcitonin gene-related peptide inhibits neuronal apoptosis in heatstroke rats via PKA/p-CREB pathway
Jie ZHU ; Ya-Hong CHEN ; Jing-Jing JI ; Cheng-Xiang LU ; Zhi-Feng LIU
Chinese Journal of Traumatology 2024;27(1):18-26
Purpose::The incidence of heatstroke (HS) is not particularly high; however, once it occurs, the consequences are serious. It is reported that calcitonin gene-related peptide (CGRP) is protective against brain injury in HS rats, but detailed molecular mechanisms need to be further investigated. In this study, we further explored whether CGRP inhibited neuronal apoptosis in HS rats via protein kinase A (PKA)/p-cAMP response element-binding protein (p-CREB) pathway.Methods::We established a HS rat model in a pre-warmed artificial climate chamber with a temperature of (35.5 ± 0.5) °C and a relative humidity of 60% ± 5%. Heatstress was stopped once core body temperature reaches above 41 °C. A total of 25 rats were randomly divided into 5 groups with 5 animals each: control group, HS group, HS+CGRP group, HS+CGRP antagonist (CGRP8-37) group, and HS+CGRP+PKA/p-CREB pathway blocker (H89) group. A bolus injection of CGRP was administered to each rat in HS+CGRP group, CGRP8-37 (antagonist of CGRP) in HS+CGRP8-37 group, and CGRP with H89 in HS+CGRP+H89 group. Electroencephalograms were recorded and the serum concentration of S100B, neuron-specific enolase (NSE), neuron apoptosis, activated caspase-3 and CGRP expression, as well as pathological morphology of brain tissue were detected at 2 h, 6 h, and 24 h after HS in vivo. The expression of PKA, p-CREB, and Bcl-2 in rat neurons were also detected at 2 h after HS in vitro. Exogenous CGRP, CGRP8-37, or H89 were used to determine whether CGRP plays a protective role in brain injury via PKA/p-CREB pathway. The unpaired t-test was used between the 2 samples, and the mean ± SD was used for multiple samples. Double-tailed p < 0.05 was considered statistically significant. Results::Electroencephalogram showed significant alteration of θ (54.50 ± 11.51 vs. 31.30 ± 8.71, F = 6.790, p = 0.005) and α wave (16.60 ± 3.21 vs. 35.40 ± 11.28, F = 4.549, p = 0.020) in HS group compared to the control group 2 h after HS. The results of triphosphate gap terminal labeling (TUNEL) showed that the neuronal apoptosis of HS rats was increased in the cortex (9.67 ± 3.16 vs. 1.80 ± 1.10, F= 11.002, p = 0.001) and hippocampus (15.73 ± 8.92 vs. 2.00 ± 1.00, F = 4.089, p = 0.028), the expression of activated caspase-3 was increased in the cortex (61.76 ± 25.13 vs. 19.57 ± 17.88, F = 5.695, p = 0.009) and hippocampus (58.60 ± 23.30 vs. 17.80 ± 17.62, F = 4.628, p = 0.019); meanwhile the expression of serum NSE (5.77 ± 1.78 vs. 2.35 ± 0.56, F = 5.174, p = 0.013) and S100B (2.86 ± 0.69 vs. 1.35 ± 0.34, F= 10.982, p = 0.001) were increased significantly under HS. Exogenous CGRP decreased the concentrations of NSE and S100B, and activated the expression of caspase-3 (0.41 ± 0.09 vs. 0.23 ± 0.04, F = 32.387, p < 0.001) under HS; while CGRP8-37 increased NSE (3.99 ± 0.47 vs. 2.40 ± 0.50, F = 11.991, p = 0.000) and S100B (2.19 ± 0.43 vs. 1.42 ± 0.30, F = 4.078, p = 0.025), and activated the expression caspase-3 (0.79 ± 0.10 vs. 0.23 ± 0.04, F= 32.387, p < 0.001). For the cell experiment, CGRP increased Bcl-2 (2.01 ± 0.73 vs. 2.15 ± 0.74, F= 8.993, p < 0.001), PKA (0.88 ± 0.08 vs. 0.37 ± 0.14, F= 20.370, p < 0.001), and p-CREB (0.87 ± 0.13 vs. 0.29 ± 0.10, F= 16.759, p < 0.001) levels; while H89, a blocker of the PKA/p-CREB pathway reversed the expression. Conclusions::CGRP can protect against HS-induced neuron apoptosis via PKA/p-CREB pathway and reduce activation of caspase-3 by regulating Bcl-2. Thus CGRP may be a new target for the treatment of brain injury in HS.
3.Introduction of WEN Jian-Min's Minimally-Invasive Diagnosis and Treatment System for Hallux Valgus and Its Application
Guan-Nan WEN ; Ting CHENG ; Ke-Wei JIANG ; Yi-Biao DOU ; Xiang-Yu XI ; Zhi-Qiang BAI ; Jian-Min WEN
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(10):2568-2575
Hallux valgus is a common disorder of the forefeet,and its diagnosis and treatment have always drawn the attention of the practitioners.This article introduced the minimally-invasive diagnosis and treatment system for hallux valgus of integrated traditional Chinese and western medicine,which was established by Professor WEN Jian-Min after more than 40 years of in-depth clinical practice and research based on the theory of yin-yang balance and theory of tendons and bones in traditional Chinese medicine(TCM)and through the combination of modern surgical experience.The minimally-invasive diagnosis and treatment system for hallux valgus embodies the principles of balancing yin and yang,laying equal stress on tendons and bones,unifying the fixation and functional exercises,and treating the fractures and the whole body simultaneously,and includes the key technologies such as minimally-invasive osteotomy for the first metatarsal bone,curtain-wrapped external fixation,perioperative Chinese medicine therapy based on syndrome differentiation,and rehabilitation and nursing of TCM.The system will provide a systematic guide for the standardized minimally-invasive treatment of hallux valgus,and will supply an important approach to the treatment of other orthopedic diseases with integrated traditional Chinese and western medicine.The minimally-invasive diagnosis and treatment system for hallux valgus reflects the scientific research achievements and clinical experience of Professor WEN Jian-Min,which exerts high significance of reference and application value.
4.Early gait analysis after total knee arthroplasty based on artificial intelligence dynamic image recognition
Ming ZHANG ; Ya-Nan SUI ; Cheng WANG ; Hao-Chong ZHANG ; Zhi-Wei CAI ; Quan-Lei ZHANG ; Yu ZHANG ; Tian-Tian XIA ; Xiao-Ran ZU ; Yi-Jian HUANG ; Cong-Shu HUANG ; Xiang LI
China Journal of Orthopaedics and Traumatology 2024;37(9):855-861
Objective To explore early postoperative gait characteristics and clinical outcomes after total knee arthroplasty(TKA).Methods From February 2023 to July 2023,26 patients with unilateral knee osteoarthritis(KOA)were treated with TKA,including 4 males and 22 females,aged from 57 to 85 years old with an average of(67.58±6.49)years old;body mass in-dex(BMI)ranged from 18.83 to 38.28 kg·m-2 with an average of(26.43±4.15)kg·m-2;14 patients on the left side,12 pa-tients on the right side;according to Kellgren-Lawrence(K-L)classification,6 patients with grade Ⅲ and 20 patients with grade Ⅳ;the courses of disease ranged from 1 to 14 years with an average of(5.54±3.29)years.Images and videos of standing up and walking,walking side shot,squatting and supine kneeling were taken with smart phones before operation and 6 weeks after operation.The human posture estimation framework OpenPose were used to analyze stride frequency,step length,step length,step speed,active knee knee bending angle,stride length,double support phase time,as well as maximum hip flexion angle and maximum knee bending angle on squatting position.Western Ontario and McMaster Universities(WOMAC)arthritis index and Knee Society Score(KSS)were used to evaluate clinical efficacy of knee joint.Results All patients were followed up for 5 to 7 weeks with an average of(6.00±0.57)weeks.The total score of WOMAC decreased from(64.85±11.54)before op-eration to(45.81±7.91)at 6 weeks after operation(P<0.001).The total KSS was increased from(101.19±9.58)before opera-tion to(125.50±10.32)at 6 weeks after operation(P<0.001).The gait speed,stride frequency and stride length of the affected side before operation were(0.32±0.10)m·s-1,(96.35±24.18)steps·min-1,(0.72±0.14)m,respectively;and increased to(0.48±0.11)m·s 1,(104.20±22.53)steps·min-1,(0.79±0.10)m at 6 weeks after operation(P<0.05).The lower limb support time and active knee bending angle decreased from(0.31±0.38)sand(125.21±11.64)° before operation to(0.11±0.04)s and(120.01±13.35)° at 6 weeks after operation(P<0.05).Eleven patients could able to complete squat before operation,13 patients could able to complete at 6 weeks after operation,and 9 patients could able to complete both before operation and 6 weeks after operation.In 9 patients,the maximum bending angle of crouching position was increased from 76.29° to 124.11° before operation to 91.35° to 134.12° at 6 weeks after operation,and the maximum bending angle of hip was increased from 103.70° to 147.25° before operation to 118.61° to 149.48° at 6 weeks after operation.Conclusion Gait analysis technology based on artificial intelligence image recognition is a safe and effective method to quantitatively identify the changes of pa-tients'gait.Knee pain of KOA was relieved and the function was improved,the supporting ability of the affected limb was im-proved after TKA,and the patient's stride frequency,stride length and stride speed were improved,and the overall movement rhythm of both lower limbs are more coordinated.
5.Anatomical basis and clinical effect of radical styloid process bone(membrance)flap pedicled with the recurrent branch of radial artery to styloid process in the treatment of carpal scaphoid fracture
Peng-Cheng LEI ; Zhi-Hui FANG ; Sheng-Xiang TAO ; Yin-Yin ZHOU
Journal of Regional Anatomy and Operative Surgery 2024;33(12):1066-1069
Objective To explore the anatomical basis and clinical effect of radical styloid process bone(membrance)flap pedicled with the recurrent branch of radial artery to styloid process for repairing carpal scaphoid fracture.Methods The equal lengths of the radial styloid process in 25 adult radial specimens were measured.A latex-perfused male adult upper limb specimen was dissected to observe the course and distribution of the recurrent branch of radial artery to styloid process.The clinical data of 15 patients with carpal scaphoid fracture repaired by transposition and implantation of radical styloid process bone(membrance)flap pedicled with the recurrent branch of radial artery to styloid process were retrospectively analyzed,and the therapeutic effect was analyzed.Results The length of the radial styloid process measured on 25 radial specimens was 11 to 16 mm.Dissection of the latex-perfused male adult upper limb specimens revealed:the radial artery in the snuffbox emitted a thicker dorsal carpal branch to the ulnar side at(1.2±0.2)cm below the styloid process,and then sent a branch proximally back to the styloid process.The fracture line of 15 patients disappeared after surgery,with a fracture healing rate of 100%,and a mean healing time of 12 weeks;the Krimmer wrist joint function score showed that 6 cases were excellent,7 cases were good,and 2 cases were acceptable,with excellent and good rate of 86.7%;patients had lower postoperative pain visual analogue scale scores compared with those before surgery,the difference was significant(P<0.05).Conclusion Measuring the radial styloid process of the physical specimen and observing the course and distribution of the recurrent branch of radial artery to styloid process in adult upper limb specimens can guide the formulation of surgical plan for the treatment of carpal scaphoid fractures in clinic.The transposition and implantation of radical styloid process bone(membrance)flap pedicled with the recurrent branch of radial artery to styloid process can effectively promote fracture healing,and reduce the risk of delayed healing,which has good postoperative recovery of wrist joint function and definite clinical effect in the treatment of carpal scaphoid fractures.
6.Application of low-dose ticagrelor after stent-assisted embolization of intracranial aneurysm
Yang-Fang XIANG ; Yu LIU ; Zhi-Ling ZHOU ; Guang-Sen CHENG
Journal of Regional Anatomy and Operative Surgery 2024;33(12):1073-1076
Objective To investigate the application effect of low-dose ticagrelor combined with aspirin in patients with intracranial aneurysm after stent-assisted embolization.Methods The clinical data of patients with unruptured intracranial aneurysm who underwent stent-assisted embolization in our hospital from January 2021 to January 2023 were retrospectively analyzed and divided into the ticagrelor group[aspirin(100 mg,once a day)+low-dose ticagrelor(60 mg,twice a day)]and the clopidogrel group[aspirin(100 mg,once a day)+clopidogrel(75 mg,once a day)]according to the preoperative dual antiplatelet therapy regimen.A total of 158 patients who underwent stent-assisted embolization were included,including 84 patients in the ticagrelor group and 74 patients in the clopidogrel group.The patients were followed up for 3 months after surgery,and the occurrence of ischemic events and hemorrhagic events in the two groups were observed and compared.Results There was no statistically significant difference in the incidence of hemorrhagic events 3 months after surgery(11.9%vs.12.2%)between the ticagrelor group and the clopidogrel group(P>0.05).There was a statistically significant difference in the incidence of ischemic events 3 months after surgery(11.9%vs.25.7%)between the ticagrelor group and theclopidogrel group(P<0.05).Multivariate Cox regression analysis showed that low-dose ticagrelor(HR=0.44,95%CI:0.21 to 0.93,P=0.035)was a protective factor for ischemic events after stent-assisted embolization.Conclusion Compared with clopidogrel,the application of low-dose ticagrelor(60 mg,twice a day)after stent-assisted embolization of intracranial aneurysm can significantly reduce the incidence of postoperative ischemic stroke events,and low-dose ticagrelor combined with aspirin can be used as a dual antiplatelet therapy regimen after stent-assisted embolization of intracranial aneurysm.
7.N-butyl-9H-pyrimido4,5-bindole-2-carboxamide inhibits macrophage foaming and pyroptosis via NLRP3/caspase-1
Zhi-Yun SHU ; Zi-Xu HUYAN ; Wen-Qing ZHANG ; Shi-Shun XIE ; Hong-Yuan CHENG ; Guo-Xing XU ; Xiang-Jun LI
Chinese Pharmacological Bulletin 2024;40(6):1035-1041
Aim To design the pyrimidoindole deriva-tive N-butyl-9H-pyrimido[4,5-b]indole-2-carboxamide(BFPI)and synthesize it to investigate whether it in-hibits macrophage pyroptosis and foaming effects through the NLRP3/Caspase-1 pathway.Methods BFPI was synthesized using 2,4,6-triethoxycarbonyl-l,3,5-triazine and 2-aminoindole as starting materials and structurally characterized by 1H NMR,13C NMR,and ESI-MS.The in vitro cultured mouse monocyte macro-phage cell line RAW264.7 was divided into blank,model(PA)and therapeutic(BFPI)groups,and the cells in each group were treated with the corresponding culture medium for 24 h.The proliferative viability was detected by MTT assay,and the formation of intracel-lular lipid droplets was detected by oil red O staining,and NLRP3 was detected by Western-blot and RT-qPCR,caspase-1 and MCP-1 mRNA and protein ex-pression levels by Western blot and RT-qPCR.Results Compared with the blank group,the proliferation vi-ability of cells in the model group significantly de-creased and the formation of lipid droplets significantly increased;compared with the model group,the prolif-eration viability of cells in the treatment group signifi-cantly increased and the formation of lipid droplets sig-nificantly decreased,and the differences were statisti-cally significant(P<0.01);compared with the blank group,the cellular NLRP3,caspase-1 and MCP-1 mR-NA and protein expression levels of cells in the model group significantly increased;compared with the model group,the expression levels of the above indexes of the cells in the treatment group significantly decreased,and the difference was statistically significant(P<0.01).Conclusions BFPI contributes to delaying macrophage-derived foam cell formation during athero-genesis by inhibiting macrophage NLRP3,caspase-1,and MCP-1 expression and thereby promoting their pro-liferation and inhibiting lipid phagocytosis.
8.Psychological status-based early risk warning combined with multidisciplinary team intervention improves satisfaction of the outpatients in the andrology clinic
Xun-Mei HUANG ; Ping MENG ; Hui LI ; Wei-Xiang HE ; Xiao-Li MA ; Jing-Jing GAO ; Rui-Zhi XUE ; Rui CHENG
National Journal of Andrology 2024;30(10):878-883
Objective:To investigate the psychological status of the outpatients in the andrology clinic and the effect of risk warning combined with multidisciplinary team(MDT)intervention on their satisfaction.Methods:Using convenience sampling,we enrolled 600 outpatients seeking medical attention in the Department of Andrology of our hospital from July to October 2022.We ran-domized the patients into a control(n=300)and an observation group(n=300),obtained their basic information,evaluated their psychological status with the Hospital Anxiety and Depression Scale(HADS),and assessed their satisfaction with the Xijing Hospital Outpatients'Satisfaction Questionnaire(HOSQ).The controls followed the routine procedure of treatment,while the patients in the ob-servation group received early warning before intervention based on their HADS scores.We provided normal medical care for those with HADS scores≤7,employed empathetic communication for those with HADS scores of 8-10,and conducted MDT intervention for those with HADS scores≥1l,followed by comparison of the patients'satisfaction with the outpatient service between the two groups.Results:There were no statistically significant differences in general conditions between the groups of patients(P>0.05).The mean prevalence rate of anxiety and depression was 47.83%among the male subjects,lower in the control than in the observation group(47.00%vs 48.67%,P>0.05),but higher in the patients with the education of junior high school or below(60.99%)than in those with that of senior high school(22.34%)and university or above(16.67%),and also higher in those aged 18-40 years(67.38%)than in those aged 41-60 years(51.82%)and over 60 years old(38.33%).A significantly higher rate of satisfaction with the outpatient service was found in the observation group than in the controls(97.18%vs 90.39%,P<0.05).Conclusion:Anxie-ty and depression are prevalent among the outpatients in the andrology clinic,with a higher prevalence rate in those with lower educa-tion and at a younger age.Early risk warning combined with MDT intervention can improve the satisfaction of the patients.
9.Potentiating effect and mechanism of extract of Jingfang Granules on activation of macrophages.
Dou-Dou HAO ; Zi-Han LU ; Yang-Gan LUO ; Peng-Fei TU ; Cheng-Hong SUN ; Jing-Chun YAO ; Qing WU ; Zhi-Xiang ZHU
China Journal of Chinese Materia Medica 2023;48(10):2803-2809
This study aimed to explore the potentiating effect and mechanism of the extract of Jingfang Granules(JFG) on the activation of macrophages. The RAW264.7 cells were treated with JFG extract and then stimulated by multiple agents. Subsequently, mRNA was extracted, and reverse transcription-polymerase chain reaction(RT-PCR) was used to measure the mRNA transcription of multiple cytokines in RAW264.7 cells. The levels of cytokines in the cell supernatant were detected by enzyme-linked immunosorbent assay(ELISA). In addition, the intracellular proteins were extracted and the activation of signaling pathways was determined by Western blot. The results showed that JFG extract alone could not promote or slightly promote the mRNA transcription of TNF-α, IL-6, IL-1β, MIP-1α, MCP-1, CCL5, IP-10, and IFN-β, and significantly enhance the mRNA transcription of these cytokines in RAW264.7 cells induced by R848 and CpG in a dose-dependent manner. Furthermore, JFG extract also potentiated the secretion of TNF-α, IL-6, MCP-1, and IFN-β by RAW264.7 cells stimulated with R848 and CpG. As revealed by mechanism analysis, JFG extract enhanced the phosphorylation of p38, ERK1/2, IRF3, STAT1, and STAT3 in RAW264.7 cells induced by CpG. The findings of this study indicate that JFG extract can selectively potentiate the activation of macrophages induced by R848 and CpG, which may be attributed to the promotion of the activation of MAPKs, IRF3, and STAT1/3 signaling pathways.
Tumor Necrosis Factor-alpha/metabolism*
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Interleukin-6/metabolism*
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Plant Extracts/metabolism*
;
Lipopolysaccharides/pharmacology*
;
Macrophages
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Cytokines/metabolism*
;
RNA, Messenger/metabolism*
10.Analysis of the causes of long-standing pelvic anterior sacral space infection and discussion of management techniques.
Gang Cheng WANG ; Hong Le LI ; Yang LIU ; Xiang Hao GU ; Rui Xia LIU ; Rui FENG ; You Cai WANG ; Ying Jun LIU ; Guo Qiang ZHANG ; Zhi ZHANG ; Hong Li WANG ; Fang WANG ; Yan ZHANG
Chinese Journal of Oncology 2023;45(3):273-278
Objective: To investigate the causes and management of long-term persistent pelvic presacral space infection. Methods: Clinical data of 10 patients with persistent presacral infection admitted to the Cancer Hospital of Zhengzhou University from October 2015 to October 2020 were collected. Different surgical approaches were used to treat the presacral infection according to the patients' initial surgical procedures. Results: Among the 10 patients, there were 2 cases of presacral recurrent infection due to rectal leak after radiotherapy for cervical cancer, 3 cases of presacral recurrent infection due to rectal leak after radiotherapy for rectal cancer Dixons, and 5 cases of presacral recurrent infection of sinus tract after adjuvant radiotherapy for rectal cancer Miles. Of the 5 patients with leaky bowel, 4 had complete resection of the ruptured nonfunctional bowel and complete debridement of the presacral infection using an anterior transverse sacral incision with a large tipped omentum filling the presacral space; 1 had continuous drainage of the anal canal and complete debridement of the presacral infection using an anterior transverse sacral incision. 5 post-Miles patients all had debridement of the presacral infection using an anterior transverse sacral incision combined with an abdominal incision. The nine patients with healed presacral infection recovered from surgery in 26 to 210 days, with a median time of 55 days. Conclusions: Anterior sacral infections in patients with leaky gut are caused by residual bowel secretion of intestinal fluid into the anterior sacral space, and in post-Miles patients by residual anterior sacral foreign bodies. An anterior sacral caudal transverse arc incision combined with an abdominal incision is an effective surgical approach for complete debridement of anterior sacral recalcitrant infections.
Humans
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Reinfection
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Rectum/surgery*
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Rectal Neoplasms/surgery*
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Drainage
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Anal Canal/surgery*
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Pelvic Infection

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