Objective To analyze the current situation of pediatric CT examination protection and cognition in Linyi City, China, and to promote the safe and standardized development of pediatric CT examination. Methods The radiation protection facilities of 58 medical institutions, the use of protective equipment among 158 pediatric patients undergoing CT examinations, and the cognition of radiation knowledge by 188 radiographers were investigated, and the data were analyzed. Results All 58 medical institutions installed ionizing radiation warning signs according to the standards, the normal operation rate of the work indicator lights was 81.0%, and the proper provision rate of protective equipment was 72.4%. The utilization rate of protective equipment was 59.5%, and there were significant differences among hospitals at different levels (P < 0.05). Radiographers had the highest awareness rate of radiation hazards (93.6%). The awareness rate of radiation basic knowledge differed significantly among radiographers with variuos educational backgrounds and professional titles (P < 0.05). The awareness rate of protection knowledge differed significantly with sex, age, and professional title (P < 0.05). There were significant differences in the awareness rate of emergency knowledge and laws and regulations based on age, educational background, and professional title (P < 0.05). Conclusion The availability and utilization of protective facilities and equipment for pediatric CT examinations in medical institutions in Linyi City require further improvement. Radiographers have a high level of awareness of radiation hazards. However, there remain gaps in their awareness rates of fundamental radiation hygiene knowledge, radiation protection knowledge, emergency knowledge, and laws and regulations. Increased efforts in education and training are recommended.

Objective To examine the safety, efficacy and durability of totally endoscopic minimally invasive (TEMI) mitral valve repair in Barlow’s disease (BD). Methods A retrospective study was performed on patients who underwent mitral valve repair for BD from January 2010 to June 2021 in the Guangdong Provincial People’s Hospital. The patients were divided into a MS group and a TEMI group according to the surgery approaches. A comparison of the clinical data between the two groups was conducted. Results A total of 196 patients were enrolled, including 133 males and 63 females aged (43.8±14.9) years. There were 103 patients in the MS group and 93 patients in the TEMI group. No hospital death was observed. There was a higher percentage of artificial chordae implantation in the TEMI group compared to the MS group (P=0.020), but there was no statistical difference between the two groups in the other repair techniques (P>0.05). Although the total operation time between the two groups was not statistically different (P=0.265), the TEMI group had longer cardiopulmonary bypass time (P<0.001) and aortic clamp time (P<0.001), and shorter mechanical ventilation time (P<0.001) and postoperative hospitalization time (P<0.001). No statistical difference between the two groups in the adverse perioperative complications (P>0.05). The follow-up rate was 94.2% (180/191) with a mean time of 0.2-12.4 (4.0±2.4) years. Two patients in the MS group died with non-cardiac reasons during the follow-up period. The 3-year, 5-year and 10-year overall survival rates of all patients were 100.0%, 99.2%, 99.2%, respectively. Compared with the MS group, there was no statistical difference in the survival rate, recurrence rate of mitral regurgitation, reoperation rate of mitral valve or adverse cardiovascular and cerebrovascular events in the TEMI group (P＞0.05). Conclusion TEMI approach is a safe, feasible and effective approach for BD with a satisfying long-term efficacy.

In the past, aortic dissection, aortic aneurysm, and other aortic diseases, primarily rely on surgical intervention. In recent years, due to breakthroughs in materials science, endovascular therapy has become the first choice for the surgical treatment of most aortic diseases. However, traditional endovascular repair cannot fully meet the clinical needs for certain complex lesions involving the aortic arch and the originations of visceral arteries. The emergence of physician-modified stent technology has brought new hope for the treatment of complex aortic diseases. This article provides a detailed introduction to the concept, development, technical characteristics, and applications of physician-modified stents in the treatment of aortic diseases, analyzing their advantages and limitations. Physician-modified stents serve as a powerful complement to traditional endovascular interventions and commercial branched stents, yet further research and refinement are still required.

Objective:To compare the efficacy and safety of Rotarex mechanical thrombectomy (Rotarex) combined with drug-coated balloon (DCB) versus percutaneous transluminal angioplasty (PTA) combined with DCB in the treatment of femoropopliteal artery in-stent restenosis (ISR).Methods:A multicenter, prospective, randomized controlled trial was conducted. 46 patients with femoropopliteal artery ISR admitted to five hospitals (Beijing Friendship Hospital, Capital Medical University; Beijing Chaoyang Hospital, Capital Medical University; Beijing Jishuitan Hospital, Capital Medical University; Xuanwu Hospital, Capital Medical University; Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University) from July 2020 to June 2024 were enrolled. Patients were randomly divided into the Rotarex+ DCB group ( n=24) and the PTA+ DCB group ( n=22) using a random number table. The clinical data of the two groups were collected, including clinical characteristics, Fontaine classification, stent placement location, stent duration, and lesion length. The primary endpoint was the target blood vessel patency rate at 6 and 12 months postoperatively; the secondary endpoints included improvement in clinical symptoms (Fontaine classification), rate of reintervention, and safety indicators. Measurement data were expressed as mean±standard deviation ( ± s), and the t-test was used for comparison between groups; count data were expressed as the number of cases and percentages, and intergroup comparisons were performed using the Chi-test or Fisher exact probability method. Results:At 12 months postoperatively, the target blood vessel patency rate in the Rotarex+ DCB group was significantly higher than that in the PTA+ DCB group (81.8% vs 45.5%, P=0.012), and the proportion of patients in Fontaine classification stage I was also higher (86.4% vs 45.5%, P=0.004). The results at the 6-month follow-up were consistent (target blood vessel patency rate: 87.0% vs 59.1%, P=0.035). In terms of safety, no severe complications such as arterial rupture, amputation, or procedure-related death occurred during the perioperative period in either group. During the postoperative follow-up, no amputation or procedure-related deaths occurred in either group. Conclusion:For the treatment of femoropopliteal artery ISR, Rotarex mechanical thrombectomy combined with DCB is significantly superior to PTA+ DCB in terms of 12-month target blood vessel patency rate and improvement of clinical symptoms, with comparable safety.

Objective To explore the clinical experience of Professor Wang Yan'gang in treating gastroesophageal reflux disease(GERD)using data mining methods.Methods SPSS 23.0 was used to statistically analyze the frequency,properties,flavors,and meridian tropism of Chinese herbal medicines in the prescriptions of effective GERD cases treated by Professor Wang Yan'gang in outpatient clinics from January 2020 to December 2022.Cluster analysis,factor analysis,and association rule analysis were performed on the relevant drugs.Results A total of 294 outpatient prescriptions for the treatment of GERD were collected,including 174 Chinese herbal medicines.The top 10 frequently-used drugs were Sepiae Endoconcha(Haipiaoxiao),Fritillariae Thunbergii Bulbus(Zhebeimu),Scutellariae Radix(Huangqin),Coptidis Rhizoma(Huanglian),Pinelliae Rhizoma Praeparatum Cum Alumine(Qingbanxia),Arecae Semen Tostum(Chaobinglang),Artemisiae Scopariae Herba(Yinchen),Gypsum Fibrosum(Shigao),Aurantii Fructus Immaturus(Zhishi),and Magnoliae Officinalis Cortex(Houpo).After cluster analysis,factor analysis,and association rule analysis,16 commonly-used herb pairs,such as Huangqin-Huanglian,Citri Reticulatae Pericarpium(Chenpi)-Zhuru(Bambusae Caulis in Taenia),Haipiaoxiao-Zhebeimu,Shichangpu(Acori Tatarinowii Rhizoma)-Yujin(Curcumae Radix),and Zhishi-Houpo were identified,and 9 herb groups such as"Huangqin,Huanglian,Yinchen"and"Chenpi,Zhuru,Qingbanxia"were obtained.Factor analysis was performed on 22 drugs with a usage frequency more than 110 times,and then 6 common factors were extracted after principal component analysis.Conclusion In differentiating and treating GERD,Professor Wang Yan'gang suggests that stagnated heat injuring yin should be taken as the core pathogenesis,and therapy of clearing heat and nourishing yin should be used as the core treatment method.Additionally,auxiliary methods such as soothing the throat,regulating the liver and stomach,and nourishing the heart and spirit can be adopted according to the accompanying symptoms during the disease progression.

Gastric cancer (GC) is characterized by high morbidity and mortality rates. Chinese agarwood comprises the resin-containing wood of Aquilaria sinensis (Lour.) Gilg., traditionally utilized for treating asthma, cardiac ischemia, and tumors. However, comprehensive research regarding its anti-GC effects and underlying mechanisms remains limited. In this study, Chinese agarwood petroleum ether extract (CAPEE) demonstrated potent cytotoxicity against human GC cells, with half maximal inhibitory concentration (IC₅₀) values for AGS, HGC27, and MGC803 cells of 2.89, 2.46, and 2.37 μg·mL^-1, respectively, at 48 h. CAPEE significantly induced apoptosis in these GC cells, with B-cell lymphoma-2 (BCL-2) associated X protein (BAX)/BCL-2 antagonist killer 1 (BAK) likely mediating CAPEE-induced apoptosis. Furthermore, CAPEE induced G₀/G₁ phase cell cycle arrest in human GC cells via activation of the deoxyribonucleic acid (DNA) damage-p21-cyclin D1/cyclin-dependent kinase 4 (CDK4) signaling axis, and increased Fe²⁺, lipid peroxides and reactive oxygen species (ROS) levels, thereby inducing ferroptosis. Ribonucleic acid (RNA) sequencing, real-time quantitative polymerase chain reaction (RT-qPCR), and Western blotting analyses revealed CAPEE-mediated upregulation of heme oxygenase-1 (HO-1) in human GC cells. RNA interference studies demonstrated that HO-1 knockdown reduced CAPEE sensitivity and inhibited CAPEE-induced ferroptosis in human GC cells. Additionally, CAPEE administration exhibited robust in vivo anti-GC activity without significant toxicity in nude mice while inhibiting tumor cell growth and promoting apoptosis in tumor tissues. These findings indicate that CAPEE suppresses human GC cell growth through upregulation of the DNA damage-p21-cyclin D1/CDK4 signaling axis and HO-1-mediated ferroptosis, suggesting its potential as a candidate drug for GC treatment.
Animals ; Humans ; Mice ; Antineoplastic Agents, Phytogenic ; Apoptosis/drug effects* ; Cell Line, Tumor ; Cyclin D1/genetics* ; Cyclin-Dependent Kinase 4/genetics* ; DNA Damage/drug effects* ; Drugs, Chinese Herbal/pharmacology* ; Ferroptosis/drug effects* ; G1 Phase Cell Cycle Checkpoints/drug effects* ; Heme Oxygenase-1/genetics* ; Mice, Inbred BALB C ; Mice, Nude ; Plant Extracts/pharmacology* ; Stomach Neoplasms/physiopathology* ; Thymelaeaceae/chemistry* ; Up-Regulation/drug effects*

Objective:To clarify the safety, repair rate, durability, and risk factors for recurrent mitral regurgitation(MR) in patients with Barlow disease(BD) who total thoracoscopic minimally invasive mitral valvuloplasty(TMVP).Methods:Clinical data, mid-term and long-term outcomes of BD patients who underwent TMVP at Guangdong Provincial People's Hospital from January 2009 to June 2022 were retrospectively analyzed. Patients were divided into a group with no MR recurrence(group A) and a group with MR recurrence(group B) according to whether recurrent MR appeared in the postoperative period, and the data of the two groups of patients were compared with each other for the risk factor analysis.Results:The repair rate of TMVP was 98.4%, and no patient died perioperatively. The median follow-up time was 3.1(1.7, 5.2) years, the follow-up rate was 95.8%, and there was no patient died. As of March 2023, 112 patients developed no recurrent MR(group A), 11 patients developed recurrent MR(group B), and 2 patients in group B underwent repeated mitral valve surgery. The left atrial diameter(LAD) and left ventricular end-systolic diameter(LVESD) were higher in group B than in group A patients[LAD: (50.9±7.7)mm vs.(43.7±8.7)mm, P=0.009; LVESD: (37.1±5.5)mm vs.(33.2±4.7)mm, P=0.011], and the percentage of tendon cord rupture was higher in group B than in group A( P=0.022), while the rest of the baseline data were not statistically significant. There was no statistically significant difference between two groups in terms of the use of different surgical techniques, aortic cross-clamp time, cardiopulmonary bypass time, and operative time. Postoperative LAD, postoperative LVESD, and postoperative left ventricular end-diastolic diameter of group B patients were higher than those of group A( P<0.05). There was no statistically significant difference in perioperative and long-term complication rates between the two groups. Multifactorial Cox regression analysis revealed that advanced age( HR=1.049, 95% CI: 0.997-1.103, P=0.066) and large preoperative LVESD( HR=1.168, 95% CI: 1.053-1.295, P=0.003) were the risk factors for postoperative recurrence MR. Conclusion:Total thoracoscopic minimally invasive BD repair is safe, which has a high success rate and good long-term results. Advanced age and large preoperative LVESD are risk factors for recurrent MR in the long term.

OBJECTIVE To investigate the clinical efficacy and safety of Shouhui tongbian capsule combined with linaclotide in the treatment of constipation-predominant irritable bowel syndrome （IBS-C）. METHODS A total of 97 IBS-C patients admitted to Nanyang First People’s Hospital between March 2022 and February 2024 were enrolled. Using a random number table method， patients were divided into control group （n＝46） and observation group （n＝51）. On the basis of routine treatment， the control group was given Linaclotide capsules orally， while the observation group received Linaclotide capsules combined with Shouhui tongbian capsule orally. The treatment course for both groups was 4 weeks. Clinical efficacy， Irritable Bowel Syndrome Severity Scale （IBS-SSS）， stool frequency， Bristol Stool Form Scale （BSFS）， Irritable Bowel Syndrome Quality of Life Questionnaire （IBS-QOL） score， gastrointestinal hormone levels， anorectal manometry parameters， and the occurrence of adverse reactions were compared between the two groups. RESULTS Two patients in the control group and three patients in the observation group dropped out due to adverse reactions. The effective rate in the observation group （87.50%） was significantly higher than that in the control group （68.18%）（P＜0.05）. Compared with pre-treatment， both groups showed significant increase in post-treatment stool frequency， BSFS score， serum substance P， and motilin levels. Conversely， IBS-SSS scores， IBS-QOL scores， serum vasoactive intestinal peptide levels， anal-rectal pressure difference， rectal compliance， rectal sensation threshold， and defecation threshold were significantly reduced （P＜0.05）. The observation group demonstrated superior outcomes to the control group （excluding rectal sensation and defecation thresholds， P＜0.05）. No significant difference in the incidence of adverse reactions was observed between the two groups （P＞0.05）. CONCLUSIONS Compared with linaclotide monotherapy， Shouhui tongbian capsule combined with linaclotide improves gastrointestinal hormone function and anorectal manometry parameters in IBS-C patients， alleviates clinical symptoms， improves quality of life， and exhibits favorable safety.

BACKGROUND:Graphene oxide,with its excellent physical and chemical properties and biocompatibility,can promote the differentiation of osteoblasts and inhibit the proliferation of bacteria,which will hopefully improve the success rate of implant restoration.OBJECTIVE:To summarize the research progress of graphene oxide in the field of dental implant restoration.METHODS:The related articles published by CNKI,WanFang Database,ScienceDirect,and PubMed from January 2000 to June 2024 were searched by computer.The keywords were"graphene oxide,dental implantation,biocompatibility,antibacterial mechanism,osteoblasts,mechanical properties,chemical properties"in Chinese and English.By reading the titles and abstracts,we preliminarily screened out the documents irrelevant to the topic of the article.According to the inclusion and exclusion criteria,65 documents were finally included for analysis.RESULTS AND CONCLUSION:Graphene oxide can increase the innate immune protection response of the body through its own antibacterial and drug-loaded antibacterial abilities,thus inhibiting the occurrence and development of periimplant inflammation.Graphene oxide can promote the proliferation and differentiation of bone marrow mesenchymal stem cells,enhance the proliferation of osteoblasts and vascular endothelial cells,inhibit the proliferation of osteoclasts,increase the rate of bone bonding between implants and alveolar bones,and contribute to the formation and stability of bone around implants.Graphene oxide can promote the combination of implant and gingival tissue,and reduce the occurrence of inflammation.Graphene oxide has low toxicity,and its biological safety needs further study.Graphene oxide coating endows the surface of titanium implant with excellent physical and chemical properties,which can greatly reduce the occurrence of complications such as implant fracture and prolong the survival time of implant.

OBJECTIVE To statistically analyze the data of herpes zoster vaccination in the past four years and sum-marize the current status of herpes zoster vaccination.METHODS The data of herpes zoster vaccination were col-lected from the Fifth Medical Center of PLA General Hospital between 2020 and 2023.The descriptive statistical analysis was performed for the status vaccination regarding to the age group and gender.The influencing factors for the vaccination were analyzed,and the questionnaire survey was conducted for adverse reactions after the vacci-nation.RESULTS A total of 495 people received herpes zoster vaccination in the hospital from 2020 to 2023,inclu-ding 290 female and 205 male,and the overall number of vaccination showed an upward trend.Among the popula-tions who received the vaccination,the proportion of the population aged between 50 and 60 years old was 47.68％,the population aged between 60 and 70 years old 39.19％,the population aged more than 70 years old 13.13％.Totally 353 cases had the previous history of herpes zoster virus infection,accounting for 71.31％.The major adverse reactions for the herpes zoster vaccination included slight swelling,pruritus,fatigue and headache with low-grade fever.The follow-up result showed that 4 of 376 vaccination people reported to be reinfected with herpes zoster virus.CONCLUSIONS The people aged between 50 and 60 years old are the major population for her-pes zoster vaccination,the vaccination rate declines year by year among the population aged more than 60 years old,and the rate of willing to vaccination is low.It is necessary for the epidemic prevention institutions to actively disseminate the knowledge of herpes zoster vaccine and carry out health education,especially the vulnerability to the virus and safety of the vaccine,so as to raise the public's willingness to the vaccination.