Objective: To evaluate the shaping effect of the intraoral welding framework combined with the progressive pressure technique using an ovate pontic on the soft tissue aesthetic contour of implant-supported fixed dental prostheses (ISFDPs). Methods: The Medical Ethics Review Committee of this hospital approved this retrospective study, which was conducted on 32 patients with consecutive partial edentulous in the anterior teeth (20 males, 12 females, aged 40-68 years) who received 3- to 5-unit ISFDPs between August 2022 and March 2024. Titanium frameworks for provisional prostheses were fabricated using the intraoral welding technique and screw-retained to achieve precise passive fit. The pontics were designed into an ovate shape. A progressive pressure technique was applied by selectively adding 0.8-1 mm thick flowable resin to the tissue surface of the pontic, while ensuring the avoidance of tissue blanching. Patients have a follow-up visit every 4 weeks, and the pontics were adjusted 2-3 times as needed, to form an ovate socket in the corresponding soft tissue approximately 3 mm in depth and 2.5-3.0 mm in buccolingual curvature. Definitive restorations were delivered after the conditioning period, and patients were followed up for over 1 year. Outcome measures included mechanical complications, Pink Esthetic Score (PES), Papilla Index Score (PIS), and patient satisfaction assessed using a Visual Analogue Scale (VAS). Results: During the follow-up period, no mechanical complications such as screw loosening or prosthesis fracture were observed in the 32 cases. The soft tissue aesthetic outcomes were favorable, with a mean total PES of 11.97 ± 1.18, and 96.9% of the cases achieving a score ≥ 8. According to the PIS, 93.5% of the proximal sites exhibited ideal papilla fill. VAS results indicated that 90.6% of patients were satisfied with the restorative outcome. Conclusion The technique combining an intraoral welding framework with progressive pressure using an ovate pontic can precisely shape the peri-implant soft tissue contour to mimic physiological morphology, achieving an ideal aesthetic outcome.

Objective:To explore the efficacy and safety of the combination therapy of lenalidomide and rituximab (R2) for short-cycle maintenance therapy in patients with B-cell non-Hodgkin lymphoma (B-NHL).Methods:A retrospective case series study was conducted. The clinical data of 19 B-NHL patients who received R2 regimen maintenance therapy after achieving complete remission through chemotherapy or autologous hematopoietic stem cell transplantation at Dongguan Kanghua Hospital from February 2018 to January 2024 were collected, and the overall survival (OS), progression-free survival (PFS), adverse reactions, changes in lymphocyte subsets and cytokine levels before and after treatment were analyzed.Results:Among the 19 patients, there were 7 males and 12 females, with a median age [ M ( Q1, Q3)] of 49 (45, 65) years. The median follow-up time was 56 months, ranging from 5 to 77 months. The 1-year OS and PFS rates were 89.2% and 88.9%, respectively. The 2-year and 5-year PFS rates were both 83.2%, and the 2-year and 5-year OS rates were both 88.9%. Common adverse reactions included hematological adverse reactions and infections, with 4 cases (21.1%) experiencing grade 3-4 hematological adverse reactions and 4 cases (21.1%) experiencing infections. There was no statistically significant difference in the levels of lymphocyte subsets (total T cells, helper T cells, regulatory T cells, NK cells, B cells, and CD4/CD8) and cytokines [interleukin (IL)-2, IL-4, IL-6, IL-10, tumor necrosis factor-α, and interferon-γ] before and after treatment (all P > 0.05). Conclusions:The R2 regimen for short-cycle maintenance therapy of B-NHL is effective and well tolerated by patients.

Experimental teaching of Medical Immunology is an important way to achieve the teaching goal of cultivating"prac-tical,applied,and innovative high-quality medical talents".Applying the ATR teaching mode to Medical Immunology experimental teaching,fully utilizing the advantages of artificial intelligence teaching assistants,can not only stimulate students'learning enthusi-asm,achieve simultaneous progress of"knowledge learning"and"thinking exercise",promote deep learning,and improve teaching quality,but also enhance students'teamwork ability,achieve a dual approach of"value thinking"and"practical exercise",integrate ideological and political education into the curriculum,and achieve moral education.

Experimental teaching of Medical Immunology is an important way to achieve the teaching goal of cultivating"prac-tical,applied,and innovative high-quality medical talents".Applying the ATR teaching mode to Medical Immunology experimental teaching,fully utilizing the advantages of artificial intelligence teaching assistants,can not only stimulate students'learning enthusi-asm,achieve simultaneous progress of"knowledge learning"and"thinking exercise",promote deep learning,and improve teaching quality,but also enhance students'teamwork ability,achieve a dual approach of"value thinking"and"practical exercise",integrate ideological and political education into the curriculum,and achieve moral education.

Objective:To explore the efficacy and safety of the combination therapy of lenalidomide and rituximab (R2) for short-cycle maintenance therapy in patients with B-cell non-Hodgkin lymphoma (B-NHL).Methods:A retrospective case series study was conducted. The clinical data of 19 B-NHL patients who received R2 regimen maintenance therapy after achieving complete remission through chemotherapy or autologous hematopoietic stem cell transplantation at Dongguan Kanghua Hospital from February 2018 to January 2024 were collected, and the overall survival (OS), progression-free survival (PFS), adverse reactions, changes in lymphocyte subsets and cytokine levels before and after treatment were analyzed.Results:Among the 19 patients, there were 7 males and 12 females, with a median age [ M ( Q1, Q3)] of 49 (45, 65) years. The median follow-up time was 56 months, ranging from 5 to 77 months. The 1-year OS and PFS rates were 89.2% and 88.9%, respectively. The 2-year and 5-year PFS rates were both 83.2%, and the 2-year and 5-year OS rates were both 88.9%. Common adverse reactions included hematological adverse reactions and infections, with 4 cases (21.1%) experiencing grade 3-4 hematological adverse reactions and 4 cases (21.1%) experiencing infections. There was no statistically significant difference in the levels of lymphocyte subsets (total T cells, helper T cells, regulatory T cells, NK cells, B cells, and CD4/CD8) and cytokines [interleukin (IL)-2, IL-4, IL-6, IL-10, tumor necrosis factor-α, and interferon-γ] before and after treatment (all P > 0.05). Conclusions:The R2 regimen for short-cycle maintenance therapy of B-NHL is effective and well tolerated by patients.

Objective To analyze the epidemiological characteristics and temporal spatial clustering of hand, foot, and mouth disease in Hubei Province from 2010 to 2023, and to provide evidence for formulating prevention and control measures. Methods Descriptive epidemiological method was used to analyze the surveillance data of hand, foot, and mouth disease of Hubei Province from 2010 to 2023, and spatial clustering analysis was conducted at the district/county level using ArcGIS 10.5 software. Results A total of 1 007 600 cases of hand, foot, and mouth disease were reported from 2010 to 2023, and the average annual incidence rate was 123.60/100 000. Overall , it exhibited a cyclical pattern of high incidence every other year. Except for a few years, two peaks of incidence were observed each year, , with the first peak occurring between April to July and the second occurring in October to December, and the popular season was concentrated from April to July. Children aged < 5 years were primarily affected, with a high incidence in male patients (1.53:1). The incidence of hand, foot, and mouth disease showed a positive spatial autocorrelation（Moran's I was between 0.15 to 0.76, P<0.05）at the district/county level. The hot spots were concentrated in the northwest and southeast of Hubei Province, and the cool spots were concentrated in the east of central Hubei Province. Conclusion The incidence of hand, foot, and mouth disease has obvious seasonality and spatial clustering in Hubei Province. The key prevention and control areas are concentrated in the northwest and southeast of Hubei. Enhanced prevention and control measures should be targeted on children under 5 years old and key areas to effectively reduce the occurrence of cases.

Children and adults differ significantly in physiology,biochemistry and immune function,which leads to sig-nificant differences in blood transfusion strategies between children and adults.To guide the clinical transfusion practice of pediatric patients and improve the prognosis of children,the National Health Commission organized the formulation and re-lease of the health industry standard Guideline for Pediatric Transfusion(WS/T 795-2022).This paper will briefly introduce some concepts that help understand of the Standard and the preparation process of the Standard,and explain and interpret the preparation of the"scope","general provisions"and"factors to consider"of the Standard,hoping to contribute to the understanding and implementation of the Standard.

[摘 要] 以靶向PD-1/PD-L1和CTLA-4为代表的免疫检查点阻断治疗在实体瘤的治疗中取得了不俗疗效，但仅有不到30%的患者能够从中受益的现实表明，还存在其他免疫检查点分子介导的免疫抑制。B7H3属于免疫球蛋白超家族B7家族成员，与CTLA-4/PD-1主要表达在T细胞并介导后者的免疫抑制或耗竭不同，B7H3蛋白不仅诱导性表达在免疫细胞，还组成性高表达在多种肿瘤细胞和肿瘤相关脉管系统。B7H3不仅能够激活多条信号通路直接促进肿瘤细胞恶性表型，还可以通过重塑肿瘤免疫抑制微环境间接促进肿瘤的进展、转移和耐药。因此，基于B7H3的多项靶向抗肿瘤策略，包括特异性抗体、抗体偶联药物及CAR-T细胞等均已进入临床试验并展示出较好的应用前景。但总体而言，该领域的研究依然处于探索阶段，在相互作用受体的鉴定、降低毒性、打破耐药及联合用药策略优化等方面还面临着许多问题和挑战亟待突破。

OBJECTIVE: To explore the coagulation deficit and genetic basis for a Chinese pedigree affected with Congenital dysfibrinogenemia (CD). METHODS: Peripheral venous blood samples of the proband and her family members (including 4 individuals from three generations) were subjected to routine blood test and assays of liver and kidney functions and viral hepatitis to exclude related diseases. Clauss method and DFg-PT method were used to determine the fibrinogen activity (Fg:C), and an immunoturbidimetric assay was used to determine the level of fibrinogen antigen (Fg:Ag). All of the exons (22 in total) and their flanking sequences of the FGA, FGB and FGG genes were amplified by PCR and directly sequenced. Variants in the coding regions of the three genes and transcriptional splicing sites were screened by using Mutation Surveyor^TM software. RESULTS: The Clauss method showed that Fg:C was significantly reduced in the proband and her father, whilst her mother and son were normal. With the DFg-PT method, the proband, her parents and son were all within the normal range. The Fg:C/Fg:Ag ratio of the proband and her father was lower than 0.7, whilst her mother and son were above 0.7. No significant change in the prothrombin time, activated partial thromboplastin clotting time and thrombin time was noted. Two genetic variants were detected, which included a homozygous missense variant in the FGA gene [c.991A>G (p.Thr331Ala)], which was predicted to be benign, and a heterozygous missense variant of the γ chain of the FGG gene [c.1211C>G (p.Ser404Phe)], which is located in a conserved region and unreported in the CLINVAR/HGMD/EXAC/1000G databases and literature. CONCLUSION This pedigree has conformed to the autosomal dominant inheritance of CD. The c.1211C>T (p.Ser404Phe) missense variant of the γ chain of the FGG gene probably underlay the pathogenesis of CD in this pedigree. The variant was unreported previously and named as "Fibrinogen Harbin II Ser404Phe".
Female ; Humans ; Afibrinogenemia/congenital* ; East Asian People ; Fibrinogen/genetics* ; Mothers ; Mutation ; Pedigree

Objective:To study the duration of invasive mechanical ventilation (MV) and its influencing factors after neonatal abdominal surgery under general anesthesia in neonatal intensive care unit (NICU).Methods:From January 2018 to December 2020, neonates received abdominal surgery under general anesthesia and needed endotracheal intubation and MV after surgery in NICU of our hospital were retrospectively studied. According to MV duration, the neonates were assigned into <72 h group and ≥72 h group. Multivariate logistic regression was used to analyze the risk factors of postoperative MV duration.Results:A total of 113 neonates were enrolled, including 57 male (50.4%) and 56 female (49.6%). The gestational age was (35.7±3.6) weeks, the birth weight was (2 497±933) g, the average operation age was 9.9(3.6, 22.2) d and the average hospital stay was 22.0(12.0,37.0) d. Congenital intestinal obstruction (37/113, 32.7%) was the most common diagnoses on discharge, followed by neonatal necrotizing enterocolitis(28/113,24.8%) and gastrointestinal perforation (18/113,15.0%). The duration of operation was 80.0 (55.8,117.3) min. All neonates needed MV with endotracheal intubation. The duration of postoperative respiratory support was 30.0(7.0,84.5) h. 48 neonates (42.5%) had endotracheal intubation removed within 24 h after surgery. Multivariate logistic regression analysis showed that preoperative respiratory support ( P=0.004), congenital heart disease( P=0.013) and intravenous midazolam ( P=0.032) were independent risk factors for prolonged postoperative MV. Conclusions:The need of preoperative respiratory support, congential heart disease and intravenous midazolam were independent risk factors for the duration of postoperative MV after neonatal abdominal surgery under general anesthesia.