Objective To summarize and review the heterogeneity of bone marrow derived stem cells (BMDSCs) and its formation mechanism and significance, and to analyze the possible roles and mechanisms in intestinal epithel ial reconstruction. Methods The related l iterature about BMDSCs heterogeneity and its role in intestinal epithel ial repair was reviewed and analyzed. Results The heterogeneity of BMDSCs provided better explanations for its multi-potency. The probable mechanisms of BMDSCs to repair intestinal epithel ium included direct implantation into intestinal epithel ium, fusion between BMDSCs and intestinal stem cells, and promotion of injury microcirculation reconstruction. Conclusion BMDSCs have a bright future in gastrointestinal injury caused by inflammatory bowl disease and regeneration.
Atrial fibrillation(AF)is one of the most common cardiac dysrhythmia encountered in clinical practice. Although major advances in management and prophylaxis in recent years, AF continues to be associated with increased morbidity, repeated hospitalization, reduced quality of life, and even death, causing great social and economic burden. So far, the mechanism underlying AF is not completely elucidated. There is an enormous and complicated pathogenesis involved in the occurrence and maintenance of AF. At present, a lot of studies show that inflammation is closely associated with AF. Inflammation may take part in the occurrence and maintenance of AF through the influence of cardiac electrical remodeling and structural remodeling. This review focuses on research progress of correlation evidence of inflammation and atrial fibrillation and anti-inflammatory drug therapies of AF.
目的 探讨慢性阻塞性肺疾病（COPD）患者中微量元素铜和锌与炎症介质的关系。 方法 2010年11月－2011年3月间测量15例COPD急性加重期患者入院时及治疗后和13例健康者为对照组的血清铜、锌、C反应蛋白（CRP）、白介素-6（IL-6），血浆中金属硫蛋白，以及氧化应激产物丙二醛的浓度变化。并对铜、锌浓度变化与CRP、IL-6进行相关分析。 结果 COPD组血清中铜浓度、CRP、IL-6水平高于对照组（P＜0.05），同时急性加重期患者血清中铜的浓度、CRP、IL-6水平以及丙二醛值高于缓解期患者（P＜0.05）。而急性加重期患者血清中锌浓度低于缓解期组和对照组（P＜0.05）。血浆中抗氧化物质金属硫蛋白在三组间差异无统计学意义（P＞0.05）。在微量元素与炎症因子的相关分析中发现，铜与CRP（r=0.602，P＜0.001）、IL-6（r=0.533，P＜0.001）呈正相关，锌与IL-6呈负相关（r=?0.336，P＜0.05）。 结论 在COPD氧化应激发病机制中，铜可能发挥促氧化应激的作用，而锌可能发挥抗氧化应激的作用。微量元素稳态的紊乱有可能是COPD急性加重的危险因素。
ObjectiveTo evaluate the relationship between four classic inflammatory biomarkers, including C-reactive protein (CRP), white blood cell (WBC), IL (interleukin family), tumor necrosis factor-α (TNF-α), and postoperative atrial fibrillation (POAF) after coronary artery bypass grafting (CABG) and valve replacement (VR) surgeries.MethodsWe searched PubMed, EMBase, the Cochrane Library, Ovid, Chinese Journal Full-text Database, Chinese Biomedical Literature Database, VIP database and WanFang database from the inception to April 2020. Studies on the relationship between POAF and the above four inflammatory biomarkers were analyzed. Two researchers independently reviewed the literature, extracted data and evaluated the quality of the literature. RevMan 5.3 software was used for meta-analysis.ResultsA total of 47 articles were included, covering 10 711 patients. The levels of preoperative CRP (SMD=0.38, 95%CI 0.14-0.62, Z=3.12, P=0.002) and postoperative CRP (SMD=0.40, 95%CI 0.06-0.74, Z=2.33, P=0.02), IL-6 (SMD=1.34, 95%CI 0.98-1.70, Z=7.26, P<0.001) and TNF-α (SMD=−0.33, 95%CI −0.65-−0.01, Z=2.02, P=0.040) were related to POAF, while preoperative IL-8 (SMD=−0.05, 95%CI −0.28-0.18, Z=0.42, P=0.68) and TNF-α (SMD=−0.43, 95%CI −1.22-0.36, Z=1.07, P=0.28), postoperative WBC (WMD=1.16, 95%CI −0.09-2.42, Z=1.82, P=0.07) and IL-10 (SMD=0.21, 95%CI −0.35-0.77, Z=0.73, P=0.46) were not related to POAF. The relationships between preoperative WBC and IL-10, postoperative IL-8 and POAF were inclusive, which needed further verification. Furthermore, the relationship between postoperative CRP and POAF were not consistent, as they were not significantly correlated in sub-group analysis.ConclusionThe inflammatory substrate before the surgery and inflammatory reaction induced by the operation is related to the occurrence and maintenance of POAF. Compared with preoperative inflammatory status, postoperative inflammatory factors may have a greater predictive value for POAF. Preoperative CRP, postoperative IL-6 and TNF-α levels are reliable biomarkers of POAF.
Dendritic cells (DCs) are the most potent and specialized antigen-presenting cells (APCs) currently known, which play a crucial role in initiating and amplifying both the innate and adaptive immune responses. During the process of immune function, migration ability of DCs and the number of effector T cells which activated by DCs are closely related to the efficiency of immune function. However, because of the complexity of immune system, in the immune response process caused by the skin chronic inflammatory, much is still unknown about the dynamic changes of cell count with time. Therefore, we created a differential equations model to reflect the initial stages of the immune response process caused by the skin chronic inflammatory via setting the function and initial conditions of parameters. The results showed that the model was able to simulate migration and proliferation of cells in vivo within realistic time scales in accordance with the proliferation and migration efficiency in real terms. In addition, the preliminary model can biologically predict the realistic dynamics of DCs and T cells at different time points. All these results may provide a theoretical reference for studying the immune function of DCs as well as guiding the clinical treatment for immune related diseases further.
目的 探讨术后早期炎症性肠梗阻的诊断和治疗。方法 对我院1995年至1999年间收治的16例术后早期炎症性肠梗阻患者的临床资料进行回顾性分析。结果 15例患者经胃肠减压、抗生素、理疗、肾上腺皮质激素及中药等治疗治愈，平均治疗时间11天； 中转手术治疗1例，无1例肠坏死。结论 术后早期炎症性肠梗阻的特点有： ①多在手术后7天左右出现梗阻症状，多由腹腔内炎症所致广泛粘连引起； ②症状以腹胀为主，腹痛相对较轻，较少发生肠绞窄； ③治疗应首选非手术疗法。
Objective To explore the relationship between nasopharyngeal microecology and diseases in children with bronchial asthma. Methods A total of 41 children with asthma who were treated in Hainan Provincial Hospital of Traditional Chinese Medicine between November 2020 and March 2023 were retrospectively included in the study, and 26 healthy children undergoing adenoid examination in the same period were selected as the control group. Samples of nasal mucosa were collected from the anterior and medial side of inferior turbinate, and the expression of DEFB2, IL17A, TSLP, IL13, IL5 and T1R3 genes was analyzed by polymerase chain reaction. Nasal swabs were collected from the children, and the bacterial composition was analyzed by 16S ribosomal RNA gene sequencing. Results Compared with the control group, the rate of atopy cases in the asthma group increased significantly (53.7% vs. 19.2%, P<0.05). At the phylum level, compared with the control group, the phylum Chloroflexi, the phylum Patescibacteria, the phylum Tenericutes and the phylum Nitrospirae in the asthma group increased significantly (P<0.05), and the phylum Elusimicrobia decreased significantly (P<0.05). At the genus level, compared with the control group, the members of Bacillus (Fimnicutes), Ruminococcus (Fimnicutes), Rhodococcus (Actinobacteria), Acinetobacter (Proteobacteria), Moraxella (Proteobacteria) and Asaia (Proteobacteria) in the asthma group increased significantly (P<0.05), and the members of Enterococcus (Fimnicutes), Alkanindiges (Proteobacteria), Rickettsia (Proteobacteria), and Rhizobium (Proteobacteria) in the asthma group decreased significantly (P<0.05). Compared with the control group, the Shannon index of the asthma group decreased significantly (2.63±1.45 vs. 3.90±1.44; t=2.708, P=0.010). According to receiver operating characteristic curve analysis, the optimal cut-off point of Shannon index was 3.10. In all study populations, compared with children whose Shannon index was higher than the cut-off point, children whose Shannon index was lower than the cut-off point were characterized by increased expression of IL17A and T1R3 (P<0.05) and decreased expression of TSLP (P<0.05). Conclusion The composition and abundance of nasopharyngeal microbiota are significantly different between children with asthma and healthy control children.