Acute kidney injury (AKI) has high morbidity and mortality, but effective clinical drugs and management are lacking. Previous studies have suggested that macrophages play a crucial role in the inflammatory response to AKI and may serve as potential therapeutic targets. Emerging evidence has highlighted the importance of forkhead box protein O1 (FoxO1) in mediating macrophage activation and polarization in various diseases, but the specific mechanisms by which FoxO1 regulates macrophages during AKI remain unclear. The present study aimed to investigate the role of FoxO1 in macrophages in the pathogenesis of AKI. We observed a significant upregulation of FoxO1 in kidney macrophages following ischemia-reperfusion (I/R) injury. Additionally, our findings demonstrated that the administration of FoxO1 inhibitor AS1842856-encapsulated liposome (AS-Lipo), mainly acting on macrophages, effectively mitigated renal injury induced by I/R injury in mice. By generating myeloid-specific FoxO1-knockout mice, we further observed that the deficiency of FoxO1 in myeloid cells protected against I/R injury-induced AKI. Furthermore, our study provided evidence of FoxO1's pivotal role in macrophage chemotaxis, inflammation, and migration. Moreover, the impact of FoxO1 on the regulation of macrophage migration was mediated through RhoA guanine nucleotide exchange factor 1 (ARHGEF1), indicating that ARHGEF1 may serve as a potential intermediary between FoxO1 and the activity of the RhoA pathway. Consequently, our findings propose that FoxO1 plays a crucial role as a mediator and biomarker in the context of AKI. Targeting macrophage FoxO1 pharmacologically could potentially offer a promising therapeutic approach for AKI.

Intentional tooth replantation (ITR) is an advanced treatment modality and the procedure of last resort for preserving teeth with inaccessible endodontic or resorptive lesions. ITR is defined as the deliberate extraction of a tooth; evaluation of the root surface, endodontic manipulation, and repair; and placement of the tooth back into its original socket. Case reports, case series, cohort studies, and randomized controlled trials have demonstrated the efficacy of ITR in the retention of natural teeth that are untreatable or difficult to manage with root canal treatment or endodontic microsurgery. However, variations in clinical protocols for ITR exist due to the empirical nature of the original protocols and rapid advancements in the field of oral biology and dental materials. This heterogeneity in protocols may cause confusion among dental practitioners; therefore, guidelines and considerations for ITR should be explicated. This expert consensus discusses the biological foundation of ITR, the available clinical protocols and current status of ITR in treating teeth with refractory apical periodontitis or anatomical aberration, and the main complications of this treatment, aiming to refine the clinical management of ITR in accordance with the progress of basic research and clinical studies; the findings suggest that ITR may become a more consistent evidence-based option in dental treatment.
Humans ; Tooth Replantation/methods* ; Consensus ; Periapical Periodontitis/surgery*

Objective:To investigate the application value of transanal intersphincteric resec-tion under direct vision in the Jackknife position in the anal preserving surgery for ultra-low rectal cancer.Methods:The retrospective and descriptive study was conducted. The clinicopathological data of 15 patients with ultra-low rectal cancer who underwent transanal intersphincteric resection under direct vision in the Jackknife position, combined with laparoscopic total mesorectal excision in Huizhou Municipal Central Hospital from September 2021 to November 2022 were collected. There were 9 males and 6 females, aged (63±9)years. Measurement data with normal distribution were represented as Mean± SD, and measurement data with skewed distribution were represented as M(range). Count data were described as absolute numbers. Results:(1) Surgical and postoperative outcomes. All the 15 patients underwent operations successfully, without conversion to open abdo-minal operation. There were 5 cases of partial ISR and 10 cases of subtotal ISR. The operation time and volume of intraoperative blood loss of 15 patients were (260±30)minutes and 20(range, 10-30)mL, respectively. The distance from anastomosis to anal margin was (1.6±0.8)cm. The duration of post-operative hospital stay was 10(range, 8-13)days, and all 15 patients underwent colonic and anasto-mosis with staplers and protective ileostomy at the terminal ileum. Three patients had postoperative complications within 30 days after surgery, of whom 1 case with grade A anastomotic leakage was cured after conservative treatment and 2 cases with anastomotic membranous stenosis were cured by anal enlargement. (2) Postoperative pathological examination. The number of lymph nodes dissected of 15 patients was 18 ±6, and the distance between the tumor and distal resection margin was 1.3(range, 1.0-2.0)cm. The surgical specimens of all 15 patients showed complete mesorectum and negative for proximal, distal and circumferential margins. Results of postoperative pathological examination showed that there was 1 case in stage pT1N0M0, 9 cases in stage pT2N0M0, 1 case in stage pT2N1M0, 1 case in stage ypT0N0M0, 2 cases in stage ypT2N0M0, 1 case in ypT3N1M0 stage. The histological subtype showed 11 cases of moderately differentiated adenocarcinoma and 4 cases of well-differentiated adenocarcinoma. (3) Follow-up. All 15 patients were followed up for 15(range, 12-24)months. No local recurrence and distant metastasis of the tumor was found, and no tumor-related death occurred. All 15 patients underwent stoma closure. The postoperative anal function assessment of 15 patients showed no disorder in 5 cases, mild disorder in 8 cases and severe disorder in 2 cases.Conclusion:Transanal intersphincteric resection under direct vision in the Jackknife position in the anal preserving surgery for ultra-low rectal cancer is safe and feasible.

Aim To investigate the relationship between systemic inflammatory immune index(SII)and systemic inflammatory response index(SIRI)and the risk of in-hospital major adverse cardiovascular events(MACE)in patients with acute myocardial infarction(AMI).Methods Retrospective analysis was conducted on AMI patients ad-mitted to the Second Cardiovascular Disease Area of Suining Central Hospital from February 2021 to May 2022.Based on inclusion and exclusion criteria,246 patients were finally enrolled.According to whether MACE occurred during hospital-ization,they were divided into event group and non-event group,and baseline data of the two groups were compared.All variables except SII and SIRI were included in a univariate-multivariate Logistic regression analysis to screen factors af-fecting the risk of MACE,and were used as significant covariates for adjustment to evaluate the relationship between SII and SIRI and the risk of MACE respectively.Results The results of multivariate Logistic regression analysis showed that emergency PCI,left ventricular ejection fraction,albumin level and age were significant factors affecting the risk of in-hos-pital MACE in AMI patients(OR=0.432,95％CI:0.194～0.960,P=0.038;OR=0.930,95％CI:0.890～0.969,P=0.001;OR=0.730,95％CI:0.621～0.845,P＜0.001;OR=1.143,95％CI:1.070～1.228,P＜0.001),and a basic model was established based on this.After adjusting for the significant covariates,SII and SIRI were both independ-ent risk factors for in-hospital MACE(OR=1.004,95％CI:1.001～1.008,P=0.002;OR=4.467,95％CI:2.597～8.142,P＜0.001).The areas under the curves of SII and SIRI were 0.658 and 0.785,respectively,and the optimal cutoff values were 434.83 and 1.03.Restricted cubic spline analysis showed that SII(Nonlinear P=0.639)and SIRI(Nonlinear P=0.683)were linearly related to the risk of MACE after adjusting significant covariates.Threshold effect a-nalysis showed that when SIRI＞0.93,the risk of MACE began to increase.Conclusion Elevated levels of SII and SI-RI are independent risk predictors for the occurrence of in-hospital MACE in AMI patients.

The dental operative microscope has been widely employed in the field of dentistry, particularly in endodontics and operative dentistry, resulting in significant advancements in the effectiveness of root canal therapy, endodontic surgery, and dental restoration. However, the improper use of this microscope continues to be common in clinical settings, primarily due to operators' insufficient understanding and proficiency in both the features and established operating procedures of this equipment. In October 2019, Professor Jingping Liang, Vice Chairman of the Society of Cariology and Endodontology, Chinese Stomatological Association, organized a consensus meeting with Chinese experts in endodontics and operative dentistry. The objective of this meeting was to establish a standard operation procedure for the dental operative microscope. Subsequently, a consensus was reached and officially issued. Over the span of about four years, the content of this consensus has been further developed and improved through practical experience.
Humans ; Dentistry, Operative ; Consensus ; Endodontics ; Root Canal Therapy ; Dental Care

Three patients diagnosed as amyloidosis secondary to ankylosing spondylitis (AS) in Peking Union Medical College Hospital are reported.All 3 cases had renal abnormalities,2 cases were complicated with cardiac abnormalities,1 case was complicated with gastrointestinal abnormalities and 1 case was complicated with skin moss-like changes.Eleven cases of AS with amyloidosis were retrieved from Wanfang database and Pubmed database from 1997 to 2017.In total 14 cases,the male and female ratio was 5:2,the mean age of AS onset was (29.6± 10.5)years,and the mean age of amyloidosis diagnosed was(44.0± 10.5)years.Eight patients presented with edema and severe proteinuria,2 cases showed diarrhea,2 cases showed dyspnea,while 2 cases had no obvious symptoms.Thirteen cases had renal abnormalities and 1 case had only heart involvement.Of the 13 patients with renal involvement,2 cases were complicated with cardiac abnormalities,2 cases complicated with gastrointestinal abnormalities,2 cases complicated with skin abnormalities.The mean ESR was(83.7±22.6)mm/1 h,C reactive protein was(89±59)mg/L at onset.After the diagnosis of amyloidosis,9 patients were treated with TNF-α inhibitors,3 cases received symptomatic therapy,1 case underwent renal transplantation and 1 case were treated with peritoneal dialysis.In 9 patients treated with TNF-α inhibitors,8 cases were relieved and 1 case lost follow-up.Three patients who received symptomatic treatment all died,while patients receiving kidney transplantation and peritoneal dialysis were in stable condition.The study indicates that secondary amyloidosis often occurs in young male AS patients who have long course and poorly controlled disease,the kidney is the most common affected organ.TNF-α inhibitors may be effective for treatment of amyloidosis secondary to AS.

Objective: To evaluate the potential clinical value of standardized procedures of fine lymph node sorting from gastric can-cer samples after curative resection. Methods: Between January 2016 and December 2017, 727 gastric cancer patients who under- went R0 resection in the Tianjin Medical University Cancer Institute and Hospital were retrospectively included and assigned to either the fine lymph node sorting group or regional lymph node sorting group in accordance with the lymph node sorting methods from the tumor samples of all patients. Both the numbers of examined lymph nodes and metastatic lymph nodes were compared between the two groups. Additionally, correlation analyses were performed between the numbers of examined lymph nodes and metastatic lymph nodes in the two groups. Results: There was no significant difference in sex, age, or tumor size between the two groups (P>0.05), indi-cating that there was comparability between the two groups. The number of examined lymph nodes in the fine lymph node sorting group was significantly higher than that in the regional lymph node sorting group (P<0.001). Furthermore, the number of examined lymph nodes in the fine lymph node sorting group was much higher than that in the regional lymph node sorting group with the same pT, pN, or pTNM stage (P<0.001). The number of metastatic lymph nodes in the fine lymph node sorting group was significantly higher than that in the regional lymph node sorting group (P<0.001). There was a significant positive correlation between the numbers of ex-amined lymph nodes and metastatic lymph nodes in both groups (fine lymph node sorting group r=0.181, P=0.023; regional lymph node sorting group r=0.227, P<0.001). Additionally, the correlation coefficient between the numbers of examined lymph nodes and metastatic lymph nodes in the fine lymph node sorting group was weaker than that in the regional lymph node sorting group. Conclu-sions: The standard procedures of fine lymph node sorting from tumor samples of gastric cancer may increase the number of exam-ined lymph nodes, accurately provide the postoperative pN stage, reduce the stage migration, and should be applied in clinical stan-dardization.

Objective To investigate the distribution and drug resistance of carbapenem-resistant Enterobacteriaceae ( CRE) isolated from children in China. Methods CRE strains were collected in 10 ter-tiary children's hospitals of China from January 1, 2016 to December 31, 2017. Antimicrobial susceptibility of the clinical strains was detected with disk diffusion method ( KB method) and automated method. The re-sults were analyzed according to the Clinical and Laboratory Standards Institute ( CLSI) Standards published in 2017. WHONET 5. 6 software was used to retrospectively analyze the distribution characteristics and drug resistance of these strains. Results A total of 3065 CRE clinical strains were isolated from children with an overall prevalence of 7. 7％ and among them, 13. 5％ were isolated in neonatal group and 5. 8％ in non-neo-natal group. The detection rate of CRE in 2017 was higher than that in 2016 (9. 7％ vs 5. 7％). Among the 3065 CRE strains, there were 1912 strains of Klebsiella pneumoniae (62. 0％), 667 strains of Escherichia coli (22. 0％), 206 strains of Enterobacter cloacae (7. 0％), 56 strains of Klebsiella aerogenes (1. 8％) and 47 strains of Serratia marcescens (1. 5％). Most of the strains were isolate in neonatology departments including neonatal intensive care units (NICU) and intensive care units (ICU), accounting for 44. 8％ and 19. 7％, respectively. Respiratory tract (61. 8％), urine (19. 4％) and blood (5. 7％) specimens were the main sources of CRE isolates. Results of antimicrobial susceptibility test showed that the CRE strains were highly resistant to carbapenem antibiotics such as imipenem, meropenem and ertapenem, as well as penicillins and most cephalosporins (79. 6％-100％), especially those isolated in the neonatal group (P<0. 05). Children had relatively low resistance rates to aminoglycosides such as amikacin (19. 7％) and fos-fomycin (11. 9％), fluoroquinolones such as levofloxacin (37. 7％) and ciprofloxacin (43. 3％), and tige-cycline (3. 8％). Currently, no polymyxin B-resistant strains were isolated. Conclusions The prevalence of common CRE strains in children in 2017 was higher than that in 2016, especially in newborns. Drug re-sistance in CRE strains isolated from neonates to common antibiotics was more severe, suggesting that great attention should be paid to it and timely measures should also be taken.

OBJECTIVETo investigated the characteristics and regularity of lymph node metastasis around gastric cancer in order to provide reference for standardized and optimal surgical treatment.

METHODSA retrospective case series study was carried out on 1456 patients with gastric cancer undergoing surgical treatment at the Affiliated Tumor Hospital of Tianjin Medical University from March 2003 to August 2011. The number of harvested lymph node and metastasis status of various lymph node station were determined by routine pathological examination of specimens, including resected gastric tissue and dissected lymph node tissue, according to the 13th version of the Japanese Gastric Cancer Treatment Guidelines. Tumor T, N and M staging was performed to evaluate lymphatic metastasis status of different locations of gastric cancer according to the TNM staging criteria of the 8th edition of the American Joint Committee on Cancer (AJCC). The influence of gender, age, tumor diameter, Borrmann type, T staging and M staging, tumor differentiation degree, invasion of vessels, lymphatic vessels and nerves, radical surgical degree and other clinical factors on lymph node metastasis was analyzed.

RESULTSA total of 1062 cases(72.9%) had lymph node metastasis in the 1456 patients with gastric cancer. A total of 9766 lymph nodes were positive for metastasis. Lymph node metastasis occurred in 11 of 44 (25.0%) patients with early gastric cancer and in 1051 of 1412 (74.4%) patients with advanced gastric cancer. The largest number of lymph node metastases was found in No.3 station [653 cases (44.8%)], followed by No.6 [437 cases(30.0%)], No.7 [345 cases (23.7%)], No.1 [304 cases (20.9%)], No.4sb [290 cases (19.9%)]. No.14v lymph node metastasis was observed in 23 cases, of whom No.6 (16 cases, 69.6%), No.8a (15 cases, 65.2%) and No.3 (12 cases, 52.2%) developed simultaneous metastasis. As for different locations of gastric cancer, stations with more lymph node metastasis in 309 patients with proximal gastric cancer were No.3 (133 cases, 43.0%), No.1 (96 cases, 31.1%), No.2 (90 cases, 29.1%) and No.7 (89 cases, 28.8%); in 144 patients with middle gastric cancer were No.3 (68 cases, 47.2%), No.6 (50 cases, 34.7%), No.7 (40 cases, 27.8%) and No.4sb (38 cases, 26.4%); in 700 patients with distal gastric cancer were No.3(287 cases, 41.0%), No.6 (265 cases, 37.8%), No.4sb (138 cases, 19.7%) and No.8a (138 cases, 19.7%); in 303 cases with diffuse-type gastric cancer were No.3 (165 cases, 54.4%), No.6 (100 cases, 33.0%), No.7 (88 cases, 29.0%), No.1 (84 cases, 27.7%) and No.4sb (72 cases, 23.8%). The incidence of lymph node skip metastasis was 7.2% (105/1456) in whole group. Positive lymph node metastasis was associated with tumor size (RR=2.016, 95%CI: 1.550-2.621, P=0.000), tumor differentiation(RR=1.631, 95%CI:1.405-1.894, P=0.000), tumor T staging (RR=1.886, 95%CI: 1.629-2.184, P=0.000), tumor M staging (RR=3.671, 95%CI:1.265-10.660, P=0.017) and radical surgery(RR=3.819, 95%CI: 2.023-7.207, P=0.000).

CONCLUSIONSThe main direction of peripheral lymph node drainage in gastric cancer is lesser curvature, and then the left gastric artery, the common hepatic artery and the peripheral lymph nodes of the celiac axis, and finally the peripheral lymph nodes of the abdominal aorta. Therefore the No.6 station lymph node adjacent to the perigastric area, the No.7, No.8 and No.9 lymph nodes should be the focus of the radical surgical dissection of gastric cancer. Tumor size, differentiation degree, invasion depth and distant metastasis have significant association with lymph node metastasis. For patients with adverse factors, radical surgery is necessary to ensure efficacy.

Objective: To analyze the antimicrobial resistance profile in Chinese children. Methods: This was a prevalence survey. From January 1 through December 31, 2016, the isolates were collected from 10 tertiary children hospitals in China. Antimicrobial susceptibility testing was carried out by routine laboratory methods. The penicillin susceptibility of streptococcus pneumonia and Meropenem susceptibility of gram-negative bacteria were detected by E-test and disk diffusion method respectively. Antimicrobial susceptibility results were interpreted according to the criteria of Clinical and Laboratory Standards Institute (CLSI) Guideline 2016. The data of antimicrobial susceptibility testing of isolates from either the different patients (neonatal group and non-neonatal group) or various sources were analyzed by WHONET 5.6 software. Results: A total of 56 241 isolates were collected, of which 41.5% (23 328 isolates) were gram-positive organisms and 58.5% (32 886 isolates) gram-negative organisms. The five leading pathogens were Escherichia coli (7 995/56 214, 14.2%), Straphylococcus aureus (6 468/56 214, 11.5%), Streptococcus pneumonia (6 225/56 214, 11.1%), Haemophilus influenza (5 435/56 214, 9.7%) and Klebsiella pneumonia (4 523/56 214, 8.0%). The Meropenem resistance rates of Klebsiella pneumonia, Enterobacter cloacae, Escherichia coil, Pseudomonas aeruginosa, Acinetobacter baumonia isolates were 27.4% (326/1 189) , 8.1% (29/358) , 2.0% (27/1 362) , 19.5% (34/174) , 49.7% (230/463) in neonatal group and 15.4% (512/3 327) , 4.8% (40/841) , 2.3% (151/6 564) , 13.7% (252/1 840) , and 53.4% (860/1 611) in non-neonatal group. The Methicillin-resistant Staphylococcus aureus (MRSA) rates of neonatal group and non-neonatal group were 46.2% (649/1 404) and 33.3% (1 668/5 010) . The penicillin non-susceptible rates of Streptococcus pneumonia in the two groups were 17.6% (6/34) and 18.2% (1 121/6 158) respectively. The β-lactamase positive rates of Haemophilus pneumonia isolates in the neonatal group and non-neonatal groups were 33.8% (47/139) and 44.4% (2 345/5 282) respectively. Conclusion This investigation highlights the worrisome trend of antimicrobial resistance in children, especially among neonatal patients in China.