Objective To analyze the clinical characteristics of drug-induced liver injury (DILI) from Chinese literatures published in Chinese Periodical Full-text Database (CNKI) from 2007 to 2011.Methods Using drug-induced liver injury as key words,the literatures in CNKI were searched,and the data of age,gender,medication,clinical manifestation and prognosis were analyzed.Results In search of CNKI,281 literatures were collected; finally 111 relevant papers were obtained.Total 10 693 cases of DILI were included with a male/female ratio of 1.14:1 and a mean age of 45.6 y ranging from 7 months to 93 y.Among 1093 cases with the age grouped,the highest incidence of DILI was in age 41-60 y(38.52％)and 20.68％ patients were over 60 y.Among 6592 cases with clinical manifestation recorded,43.51％ patients were asymptomatic and abnormal liver function was detected in health check-up; and others presented nonspecific gastrointestinal symptoms,including fatigue,nausea,vomiting and jaundice.In 9340 cases with medication recorded,the 6 most common drugs inducing DILI were antituberculotics (32.74％),Chinese herbs(22.12％),antibiotics(9.18％),antineoplastics(6.34％),NSAIDs (4.80％)and antithyroid drugs (4.37％).The most common type of toxicity was hepatocellular injury (63.66％,4438/6971).In general the prognosis was good with a fatality rate of 1.67％.Conclusions Antituberculotics and Chinese herbs are the main causes of DILI.Some DILI patients have occult onset and others have nonspecific gastrointestinal symptoms.Most patients have good prognosis if they are treated timely.

Fear memories are temporarily suppressed after repeated retrieval, a phenomenon known as memory extinction.How to reduce or even eliminate fear memory is the key to the treatment of fear related diseases such as post-traumatic stress disorder(PTSD). A single extinction training based on Pavlov's fear regulation task could only inhibit the expression of conditioned fear memory traces, but it could not eliminate the acquired conditioned fear memory. However, according to the reconsolidation theory based on memory, the retrieval-extinction paradigm has a more lasting effect on the erasure and rewriting of fear memory, and can effectively prevent the return of fear memory. Studies have shown that extraction-regression is closely related to a variety of neurotransmitter receptors such as glutamate receptor(GluR), dopamine receptor(DAR), L-type voltage-gated calcium channels(LVGCs) and cannabinoid. Moreover, its effect is closely related with factors such as retrieval-extinction memory stage. At present, most of the researches on extracted boundary conditions only stay at the level of behavior, with little understanding and exploration on the level of molecular mechanism. From the perspective of molecular neurobiology, with different stages of memory and different types of receptors and molecular mechanisms, this research reviewed the mechanisms of retrieval-extinction in recent years.It provided valuable signaling pathways, molecular targets and research directions for the treatment of fear-related diseases such as PTSD.

Artificial Intelligence (AI) is an interdisciplinary subject developed on the basis of computer technology, cybernetics, mathematics, philosophy and brain science. The purpose of AI is to study new ways to extend the intelligence of human brain in various fields. In recent years, the rapid development of AI technology has brought innovation to medical science and health care. During the pandemic of coronavirus disease 2019 (COVID-19) AI has been widely used in epidemiological investigation and outbreak prediction, clinical diagnosis and treatment, hospital management, research and development of new drugs and vaccines. The application of AI has reduced the clinical workload and the consumption of medical resources, greatly assisted the battle against COVID-19.This article introduces the progresses on the applications of AI technology to provide information for its further application in the fighting against COVID-19.

Multiple injuries caused by trauma have high rates of disability and mortality and are difficult to treat, which have a negative impact on the patients, their families and the society. At present, the medical model of trauma treatment is still inadequate, and the treatment of trauma patients faces great challenges. Artificial intelligence (AI) is an intelligent technology based on machine learning, reinforcement learning and deep learning algorithm, and it has been applied to the treatment of patients with trauma. Its efficient and accurate computer vision, planning and decision-making, and big data statistical analysis not only improve the safety and efficiency in the treatment of trauma, but also reduce the workload of clinicians, which makes up for the deficiency of the traditional model of trauma care. After screening the recent studies of AI in trauma care, the authors review its application in emergency triage, diagnosis, treatment and prevention of war trauma, in order to introduce the latest research progress of AI in trauma care and provide references for future developments.

Objective:To investigate the effectiveness and safety of the InMode System radiofrequency therapy instrument in shaping the contour of the lower face and chin-neck area.Methods:From May 2022 to May 2023, the Department of Plastic and Aesthetic Surgery at the Central Hospital affiliated with Dalian University of Technology treated 47 patients [1 male, 46 females; aged 18-69(45.5±10.5) years] seeking cosmetic improvements for fat accumulation and sagging in the lower face and chin-neck area. The patients underwent three sessions of radiofrequency fat reduction and skin tightening with the InMode System. A follow-up of 1-6 months was conducted to survey patient satisfaction, and third-party plastic surgeons evaluated the postoperative results.Results:After three sessions, 43 out of the 47 patients (91.49%) were effectively treated, as assessed by blind evaluation from plastic surgeons six months post-treatment. A total of 44 patients (93.62%) reported satisfaction. Apart from mild redness or bruising within 1-3 days, there were no severe complications such as burns or nerve damage, and the contouring effects were satisfactory.Conclusions:The InMode System radiofrequency therapy instrument is effective for fat reduction and contouring of the lower face and chin-neck area. It is a valuable method for fat reduction and skin tightening, worthy of clinical application.

Objective:To evaluate the efficacy and safety of budesonide viscous suspension (BVS) in preventing extensive esophageal stenosis after endoscopic submucosal dissection(ESD).Methods:Data of 62 cases of early esophageal neoplasms or precancerous lesions receiving ESD whose postoperative mucosal defects were more than half the circumference of the esophageal lumen at Fujian Provincial Hospital from October 2014 to December 2018 were retrospectively studied. The patients were divided into the BVS group who received BVS therapy (n=24) and the control group who received no intervention (n=38). The incidence of postoperative stenosis, the number of bougie dilation procedures and complications were compared between the two groups. Risk factors for postoperative stricture were analyzed by logistic regression.Results:The incidence of postoperative stenosis [16.7% (4/24) VS 47.3% (18/38), P=0.005], the number of bougie dilation procedures (1.50±0.58 VS 2.70±1.09, P=0.039) in the BVS group were significantly lower than those in the control group. No serious adverse events such as perforation or massive hemorrhage related to BVS were observed in the BVS group. Multivariate logistic regression analysis showed circumferential extension ≥3/4 ( OR=37.970, 95% CI: 6.338-227.482) and non-intervention with BVS( OR=20.962, 95% CI: 3.374-130.243) were the independent risk factors for esophageal stricture after ESD. Conclusion:Administration of BVS is an effective and safe method to reduce the incidence of stenosis and the number of bougie dilation procedures for extensive esophageal stenosis after ESD.

Although mesenchymal stem cell-derived exosomes (MSC-exos) have been shown to have therapeutic effects in experimental periodontitis, their drawbacks, such as low yield and limited efficacy, have hampered their clinical application. These drawbacks can be largely reduced by replacing the traditional 2D culture system with a 3D system. However, the potential function of MSC-exos produced by 3D culture (3D-exos) in periodontitis remains elusive. This study showed that compared with MSC-exos generated via 2D culture (2D-exos), 3D-exos showed enhanced anti-inflammatory effects in a ligature-induced model of periodontitis by restoring the reactive T helper 17 (Th17) cell/Treg balance in inflamed periodontal tissues. Mechanistically, 3D-exos exhibited greater enrichment of miR-1246, which can suppress the expression of Nfat5, a key factor that mediates Th17 cell polarization in a sequence-dependent manner. Furthermore, we found that recovery of the Th17 cell/Treg balance in the inflamed periodontium by the local injection of 3D-exos attenuated experimental colitis. Our study not only showed that by restoring the Th17 cell/Treg balance through the miR-1246/Nfat5 axis, the 3D culture system improved the function of MSC-exos in the treatment of periodontitis, but also it provided a basis for treating inflammatory bowel disease (IBD) by restoring immune responses in the inflamed periodontium.
Colitis ; Exosomes ; Humans ; Periodontitis/therapy* ; Periodontium ; T-Lymphocytes, Regulatory ; Th17 Cells