1.Role of autophagy in treatment of paracetamol-induced liver injury
Guojing XING ; Lifei WANG ; Longlong LUO ; Xiaofeng ZHENG ; Chun GAO ; Xiaohui YU ; Jiucong ZHANG
Journal of Clinical Hepatology 2025;41(2):389-394
N-acetyl-p-aminophenol (APAP) is an antipyretic analgesic commonly used in clinical practice, and APAP overdose can cause severe liver injury and even death. In recent years, the incidence rate of APAP-induced liver injury (AILI) tends to increase, and it has become the second most common cause of liver transplantation worldwide. Autophagy is a highly conserved catabolic process that removes unwanted cytosolic proteins and organelles through lysosomal degradation to achieve the metabolic needs of cells themselves and the renewal of organelles. A large number of studies have shown that autophagy plays a key role in the pathophysiology of AILI, involving the mechanisms such as APAP protein conjugates, oxidative stress, JNK activation, mitochondrial dysfunction, inflammatory response and apoptosis. This article elaborates on the biological mechanism of autophagy in AILI, in order to provide a theoretical basis for the treatment of AILI and the development of autophagy regulators.
2.Mechanism of action of follicular helper T cells in autoimmune hepatitis
Longlong LUO ; Lifei WANG ; Guojing XING ; Ying ZHENG ; Lixia LU ; Chuyi LI ; Bin LI ; Jun MA ; Xiaohui YU ; Jiucong ZHANG
Journal of Clinical Hepatology 2024;40(7):1466-1469
Autoimmune hepatitis(AIH)is a type of chronic hepatitis caused by the attack of hepatocytes by the autoimmune system,and with the prolongation of disease course,it may gradually progress to liver cirrhosis and even hepatocellular carcinoma.Although great achievements have been made in the understanding and treatment of AIH,its etiology and pathogenesis still remain unclear.T cells play a crucial role in the development and progression of AIH,and by focusing on follicular helper T cells,this article elaborates on the research advances in follicular helper T cells in AIH,in order to provide new ideas and strategies for the clinical treatment of AIH.
3.Research advances in the mechanism of action of nucleotide-binding oligomerization domain-like receptor protein 3 inflammasome in autoimmune hepatitis
Lifei WANG ; Longlong LUO ; Guojing XING ; Lixia LU ; Bin LI ; Jiucong ZHANG ; Xiaohui YU
Journal of Clinical Hepatology 2024;40(10):2092-2097
Autoimmune hepatitis(AIH)is chronic hepatitis caused by the attack of live cells by the immune system,and at present,the pathogenesis of AIH remains unclear.Inflammasomes are important components of innate immunity and are involved in a variety of pathophysiological processes.Studies have shown that inflammatory response associated with nucleotide-binding oligomerization domain-like receptor protein 3(NLRP3)plays an important role in the pathogenesis of AIH,which mainly mediates the release of proinflammatory factors and pyroptosis,thereby participating in the pathophysiological process of AIH.Therefore,the development and progression of AIH can be delayed by inhibiting the activation of NLRP3 inflammasomes,which provides new ideas for the prevention and treatment of AIH.
4.Clinical features of anti-neurofascin-155 antibody positive autoimmune nodopathy in 6 children
Zhixu FANG ; Min ZHANG ; Chaoping HU ; Yuanfeng ZHOU ; Yunjian ZHANG ; Lifei YU ; Yi WANG ; Shuizhen ZHOU
Chinese Journal of Pediatrics 2024;62(8):780-785
Objective:To analyze the clinical features of anti-neurofascin-155 (NF155) antibody positive autoimmune nodopathy in children.Methods:This was a case series study. A total of 6 children who were diagnosed accurately as anti-NF155 antibody positive autoimmune nodopathy by cell immunofluorescence assay at the Children′s Hospital of Fudan University from January 2020 to December 2023 were collected. This study retrospectively analyzed 6 pediatric children′s clinical manifestations, laboratory and electrophysiological examination results, and treatment outcomes.Results:Among 6 children with anti-NF155 antibody positive autoimmune nodopathy, there were 4 boys and 2 girls. The onset age of 6 children ranged from 3 years and 8 months to 12 years. All 6 children had extremity weakness (more severe in the distal and the lower extremities than in the upper extremities), 5 children had sensory deficits such as numbness or pain in the extremities, 4 children had tremors and ataxia, 3 children had cranial nerve involvement. Among the 6 children, 4 children had protein-cell separation in cerebrospinal fluid examinations. Among the 6 children, 1 child had central nervous system demyelination, the brain magnetic resonance imaging showed multiple abnormal signals in the bilateral cerebral hemispheres. Four children showed motor and sensory nerve damage in electrophysiological examination, and 2 children only showed motor nerve damage. Three children showed myelin and axonal damage, and 3 children only showed axonal damage. Among the 6 children, 5 children were treated with intravenous immunoglobulin and steroids. Among them, 2 children underwent plasma exchange due to poor efficacy, and subsequently, rituximab was added. There was 1 child changed the treatment with olfatomumab since the symptoms did not significantly improve after using rituximab. After treatment for 4-15 months, 2 children had no clinical symptoms, 1 child had improvement in clinical symptoms, 2 children had no significant improvement in clinical symptoms, and 1 child who did not receive the immunotherapy had no significant change in clinical symptoms.Conclusions:Anti-NF155 antibody positive autoimmune nodopathy in children presents with varying degrees of clinical manifestations. It is mainly characterized by extremity weakness, numbness and pain, often accompanied bytremorsand ataxia. Some pediatric patients may also have central nervous system demyelination. Cerebrospinal fluid and electrophysiological examination are important auxiliary examination methods. If steroid therapy is not effective, plasma exchange and rituximab treatment should be used as soon as possible.
5.Research advances in mesenchymal stem cells and their exosomes in treatment of autoimmune hepatitis
Longlong LUO ; Lifei WANG ; Ying ZHENG ; Bin LI ; Lixia LU ; Chuyi LI ; Xiaohui YU ; Jiucong ZHANG
Journal of Clinical Hepatology 2023;39(12):2920-2925
Autoimmune hepatitis (AIH) is a type of chronic hepatitis caused by the autoimmune system attacking hepatocytes, and its chronic progression may lead to liver cirrhosis and even hepatocellular carcinoma. Currently, pharmacotherapy and liver transplantation are the main treatment methods for AIH, but both methods have their own limitations, which limits the clinical benefits of patients. Therefore, it is a critical issue to search for new therapeutic agents and methods. Recent studies have shown that mesenchymal stem cells (MSC) and their exosomes can improve the symptoms of patients with AIH by suppressing inflammatory response, enhancing the regeneration of hepatocytes, and regulating the immune system and thus have wide application prospects in the treatment of AIH. By summarizing related articles, this article reviews the possible mechanisms and application of MSC and their exosomes in the treatment of AIH, in order to provide new ideas for the clinical treatment of AIH.
6.Research progress on dual blockade of TIGIT and PD-1/PD-L1 pathways in tumor im-munotherapy
Shunna WANG ; Liulu GAO ; Xiaofeng ZHENG ; Guojing XING ; Lifei WANG ; Huijuan SHAO ; Xiaohui YU ; Jiucong ZHANG
Chinese Journal of Clinical Oncology 2023;50(21):1124-1129
Programmed death-1 and programmed death-ligand 1(PD-1/PD-L1)are regulatory immune checkpoint molecules that inhibit T cell activation and,therefore,play an important role in tumor immunotherapy.In recent years,increasing numbers of targeted therapeutic agents have been developed,but single immune checkpoint blockers cannot completely inhibit tumor occurrence,and tumor escape sporadically occurs.Consequently,combination therapy of targeted drugs is considered a useful method to inhibit tumorigenesis and tumor development.T cell immunoglobulin and immunoreceptor tyrosine-based inhibition motif(ITIM)domain(TIGIT)is an inhibitory type 1 poliovirus receptor that has recently been a hotspot of targeted drug therapy research.It has been shown that the combination therapy of TIGIT plus PD-1/PD-L1 can reduce tumor escape and inhibit tumorigenesis more effectively.Therefore,this review summarizes and discusses the progress on the dual blockade of TIGIT and PD-1/PD-L1 pathways in tumor immunotherapy to provide a theoretical basis for tumor im-munotherapy.
7.Analysis of 3 cases misdiagnosised with myasthenia gravis
Chinese Journal of Applied Clinical Pediatrics 2021;36(3):222-224
The clinical data of 3 cases with myasthenia in Children′s Hospital of Fudan University were retrospectively analyzed.All the 3 patients were diagnosed with myasthenia gravis and given pyridostigmine bromide, but the treatment effect was unsatisfactory.One patient had left lower limb weakness and motor development impairment, and was diagnosed with centronuclear myopathy by gene testing.One patient had blepharoptosis, accompanied by developmental delay, facial deformity, and toe deformity.This patient was diagnosed with chromosome 18p syndrome by chromosome analysis.One patient had weakness of both legs, slight development retardation, and significantly high lactic acid levels.Basal nuclei lesions were observed under head magnetic resonance imaging (MRI). Whole exome sequencing (WES) and mitochondrial genome testing results revealed Leigh syndrome.Through summing up experience and lessons, strengthen and improve the clinical identification ability of clinicians for myasthenia gravis, and avoid misdiagnosis.
8.Thoughts on breaking away from the " paper-centric" orientation and establishing a new evaluation model of scientific and technological innovation in academic universities
Zongfang ZHENG ; Tongtong LI ; Lifei TANG ; Yu XIAO ; Hongbin HAN
Chinese Journal of Medical Science Research Management 2020;33(6):401-405
Objective:To analyze the disadvantages of " paper-centric" in science and technology evaluation, explore how to establish a new evaluation model of scientific and technological innovation in academic universities in China on the premise of breaking the " paper-centric" orientation.Methods:Analyze problems and disadvantages of the " paper-centric" orientation in the evaluation of science and technology at academic universities in China, take account into the in-depth interpretation of key policies of breaking away from " paper-centric" in recent years, and finally make proposal for the establishment of evaluation system and mode of scientific and technological innovation in the future.Results:There are many pitfalls in the " paper-centric" orientation in the evaluation of science and technology in academic universities in China, thus, it is urgent to establish a new evaluation mode of scientific and technological innovation.Conclusions:Based on the current domestic and international context, academic universities in China should deploy the strategy of scientific and technological innovation in advance, break the " paper-centric" orientation, and establish a new evaluation system and mode of science and technology that proactively match the national strategy and the development requirement.
9.Clinical characteristics and ketogenic diet therapy of glucose transporter type 1 deficiency syndrome in children: a multicenter clinical study
Lifei YU ; Yuqin ZHANG ; Jing DUAN ; Yan NI ; Xiaoyan GONG ; Zhongying LU ; Jianxiang LIAO ; Xiaopeng LU ; Zhongnan SHI ; Meifang LEI ; Jianmin ZHONG ; Jian ZHA ; Shuizhen ZHOU
Chinese Journal of Pediatrics 2020;58(11):881-886
Objective:To explore the clinical characteristics of pediatric glucose transporter type 1 deficiency syndrome (GLUT1 DS), evaluate the efficacy and safety of ketogenic diet therapy (KDT).Methods:Clinical data of 19 children with GLUT1 DS admitted to Children′s Hospital of Fudan University, Tianjin Children′s Hospital, Shenzhen Children′s Hospital, Children′s Hospital of Nanjing Medical University and Jiangxi Provincial Children′s Hospital between 2015 and 2019 were collected retrospectively. The first onset symptom, main clinical manifestations, cerebrospinal fluid features and genetic testing results of patients were summarized, the efficacy and safety of ketogenic diet treatment were analyzed. Results:Among the 19 cases, 13 were males and 6 females. The age of onset was 11.0 (1.5-45.0) months,the age of diagnosis was 54.0 (2.8-132.0) months. Epilepsy was the first onset symptom of 13 cases. Different forms of tonic-clonic seizures were the most common types of epilepsy (7 cases with generalized tonic-clonic seizures, 5 cases with focal tonic or clonic seizures, 4 cases with generalized tonic seizures). Antiepileptic drugs were effective in 4 cases. Paroxysmal motor dysfunction was present in 12 cases and ataxia was the most common one. All patients had different degrees of psychomotor retardation. Among 17 patients received cerebrospinal fluid examination, cerebrospinal fluid (CSF) glucose level was lower than 2.2 mmol/L and CSF glucose/glycemic index was<0.45 in 16 cases, only 1 case presented normal CSF glucose level (2.3 mmol/L) and normal CSF glucose/glycemic index(0.47). SLC2A1 gene mutations were found in 16 patients, missense, frameshift and nonsense mutations were the common types with 5 cases, 5 cases and 3 cases respectively. All 19 patients were treated with ketogenic diet, which was effective in 18 cases in seizure control, 11 cases in dyskinesia improvement and 18 cases in cognitive function improvement. No serious side effects were reported in any stage of KDT.Conclusions:The diagnosis of GLUT1 DS is often late. It is necessary to improve the early recognition of the disease and perform CSF glucose detection and genetic testing as early as possible. The KDT is an effective and safe treatment for GLUT1 DS, but a small number of patients have not response to diet therapy.
10.Application of hydrogen in cancer treatment
Dongchang WANG ; Yu ZHANG ; Lifei WANG ; Gang CHEN
Tianjin Medical Journal 2017;45(4):436-440
Cancer is a leading cause of death worldwide. Although a variety of cancer therapies, such as surgical resection and local ablation, chemoembolization, radiotherapy, and systemic chemotherapy, have developed rapidly in recent years, the curative effect and 5 year-survival rate of cancer remain to be unsatisfactory. In recent years, with the deepening basic research of hydrogen, its role on the treatment of various diseases including cancer has attracted an increased attention. Hydrogen can promote the apoptosis of colon cancer cells, and which combined with 5-fluorouracil has a synergistic effect and can reduce the renal toxicity induced by cisplatin, without affecting its anti-tumor effect. Hydrogen can alleviate the side effects of radiotherapy, significantly improve the quality of life for patients with liver cancer, and does not affect the effect of radiotherapy. Hydrogen application provides a new therapeutic approach to the treatment of cancer. The specific mechanism of hydrogen in cancer treatment needs further study. This article reviewes the research progress of the role of hydrogen on the treatment of cancer, including antioxidant, anti-inflammatory, adjuvant chemoradiotherapy, and the regulation of signaling pathways.

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