1.Role and mechanism of osteoblast autophagy in exercise-related improvements in osteoporosis
Xiaoyan YI ; Xinyu ZENG ; Yuwei LIU ; Yuxin YANG ; Chenghao ZHONG ; Jianbo HU ; Xianghe CHEN
Chinese Journal of Comparative Medicine 2025;35(3):156-169
The role of osteoblast(OB)autophagy in regulating bone metabolism is a research hotspot in the field of biomedicine.OB autophagy can regulate osteoporosis(OP)induced by aging,oxidative stress,estrogen deficiency,and glucocorticoids(GCs)by mediating factors such as run and cysteine rich domain containing Beclin-1 interacting protein(RUBCN),silent information regulator of transcription 1(SIRT1),and osteoprotegerin(OPG).OB autophagy can also regulate OP by activating notch receptor(Notch)and forkhead box protein O subfamily(FoxO),up-regulating the expression of osteogenic transcription factors(such as Runx2 and Osterix),and mediating the amp-activated protein kinase(AMPK),mammalian target of rapamycin complex(mTOR),Wnt,and c-Jun n terminal kinase(JNK)pathways to act on OB and osteoclast(OC)differentiation.Exercise is an important means of improving OP,and its molecular mechanism is closely related to the up-regulation of phosphatidylinositol 3 kinase(PI3K),adenosine monophosphate(AMP),tumor necrosis factor-alpha(TNF-α),and SIRT1 expression.These in turn activate key factors or pathways(including AMPK,mTOR,Wnt,PI3K/protein kinase B(Akt)/mTOR,and nuclear transcription factor-KB(NF-κB)),regulate the expression of downstream target genes(β-catenin,mTOR,FoxO3a and B cell lymphoma-2(Bcl-2))to up-regulate the expression of autophagy factors(Beclin-1,autophagy related genes(ATG),and microtubule-associated protein 1 light chain 3(LC3)),and promote OB autophagy to restore the dynamic balance in the body,thereby regulating bone formation and bone resorption and improving OP.The relationships among exercise,OB autophagy and OP,however,remain unclear and there is currently a lack of systematic reviews.Here we review and analyze the mechanism of OB autophagy in relation to exercise-induced improvements in OP,and provide a new theoretical basis and research ideas for the prevention and treatment of OP.
2.Genetic variation analysis in three cases of acute generalized exanthematous pustulosis caused by hydroxychloroquine
Yi SHAO ; Shuai ZHANG ; Jinfa DOU ; Lu BIAN ; Xing FAN ; Ming LI ; Hongwei LIU ; Jianbo WANG ; Jianguo LI
Chinese Journal of Dermatology 2025;58(8):767-770
To report 3 cases of acute generalized exanthematous pustulosis (AGEP) caused by hydroxychloroquine. All the 3 patients were females, aged 23, 30, and 28 years respectively. In cases 1 and 3, the rashes appeared 4 days and 12 days respectively after the treatment with hydroxychloroquine for systemic lupus erythematosus; case 2, who was 8 weeks pregnant, developed rashes 10 days after starting hydroxychloroquine treatment for antiphospholipid syndrome. All the 3 patients had high fever, and clinically presented with generalized round or oval-shaped edematous erythema on the face, neck, trunk and limbs, covered with a large number of pinhead-sized pustules, and with multiple erythema multiforme-like lesions on the trunk and both upper limbs, including targetoid lesions. Mutations in the IL36RN gene were identified in all the 3 patients: a homozygous mutation c.115+6T>C in the IL36RN gene was found in case 1, and her parents were heterozygous carriers; case 2 inherited the heterozygous mutation c.115+6T>C in the IL36RN gene from her mother; the heterozygous mutation c.115+6T>C found in case 3 was a de novo mutation. A diagnosis of AGEP was made in all the 3 cases. Cases 1 and 2 received subcutaneous injections of adalimumab in addition to the treatment of their underlying diseases, and skin lesions markedly regressed after 1 week of treatment; case 3 was treated with high-dose glucocorticoids, and lesions subsided after 4 weeks; no significant adverse reactions were observed in cases 1 and 2, however, femoral head necrosis was noted in case 3. During a follow-up period of 42 months, none of the patients experienced recurrence, and case 2 gave birth to a healthy baby boy after 8-month treatment.
3.Tirzepatide in the treatment of type 2 diabetes mellitus:a rapid health technology assessment
Yunxuan ZHANG ; Haifeng ZHOU ; Ningzhou GAO ; Jianbo WU ; Cheng QIAN ; Min ZHANG ; Han GUO ; Zhongjuan SONG ; Xiaoyan LIU
Chinese Journal of Pharmacoepidemiology 2025;34(9):1057-1065
Objective To conduct a rapid health technology assessment(rHTA)of the efficacy,safety,and cost-effectiveness of tirzepatide for the treatment of type 2 diabetes mellitus(T2DM),and to provide evidence for clinical medication.Methods PubMed,Web of Science,Embase,Cochrane Library,WanFang Data,CNKI databases,and health technology assessment(HTA)websites were searched to collect systematic reviews/Meta-analysis,pharmacoecomic literature and HTA reports of tirzepatide in the treatment of T2DM from inception to February 28,2025.Two researchers independently conducted literature screening,data extraction,and quality assessment,and then summarized and analyzed the results.Results A total of 13 articles were included,comprising 2 HTA reports,8 systematic reviews/Meta-analyses,and 3 pharmacoeconomic studies.In terms of efficacy,tirzepatide outperformed placebo or other antidiabetic drugs in reducing glycated hemoglobin(HbA1c),increasing the rate of HbA1c<7%,lowering blood glucose,and reducing weight.The antihyperglycemic and weight-loss effects of tirzepatide were dose-dependent,and it also had certain advantages in reducing the risk of cardiovascular events and renal composite endpoint events.Regarding safety,the incidence of gastrointestinal adverse events in the tirzepatide group was higher than that in the placebo group and the insulin group,mainly manifested as diarrhea,nausea,and vomiting.However,it did not increase the risk of serious gastrointestinal adverse events,nor did it increase the risk of hypoglycemia and pancreatitis.In terms of cost-effectiveness,tirzepatide had cost-utility and cost-effectiveness advantages compared with semaglutide and other antidiabetic drugs.Conclusion Compared with other antidiabetic drugs,tirzepatide has better efficacy,safety,and cost-effectiveness in the treatment of T2DM.
4.Preliminary study of the dose characterization of the INTRABEAM system
Yujie TANG ; Chuanfeng LIU ; Guanbo WANG ; Dehong LI ; Yibao LIU ; Tiantian DAI ; Huagui WANG ; Xiaole ZHANG ; Jianbo CHENG ; Jianwei HUANG ; Xuan ZHANG ; Taiwei SHI
Chinese Journal of Radiological Medicine and Protection 2025;45(5):472-477
Objective:To investigate the dose characteristics of the Zeiss INTRABEAM system in air and water, providing dose reference for electronic brachytherapy.Methods:A Monte Carlo program was used to establish a three-dimensional model of a miniature X-ray source vacuum drift tube and a 4 cm spherical applicator. The process of electron beam bombardment on a gold target to generate X-rays was simulated, and parameters such as photon fluence spectrum, percentage depth dose, and half-value layer were calculated. Additionally, the radial dose uniformity in water was measured.Results:The average energy of X-rays at 3 cm in air was 20.8 keV, with a half-value layer of 0.08 mm Al. Under the influence of the applicator, the spectrum becomes hardened, with axial and radial average energies of 28.7 and 29.0 keV, respectively. In water, the percentage depth dose (PDD) curve follows an inverse cubic decay with depth, indicating strong dose concentration and rapid fall-off in near-field irradiation. The radial dose uniformity in water exceeded 99.5%.Conclusions:The INTRABEAM device emits low-energy X-rays characterized by shallow penetration depth, and concentrated dose delivery. Its highly uniform dose distribution ensures comprehensive coverage of the target area, making it particularly suitable for treating superficial tumors and for intraoperative radiotherapy at close range.
5.Association and mechanism between genetic variants in binding region of pancreatic and duodenum homeobox-1 and susceptibility to pancreatic cancer
Wen TIAN ; Yizhuo LIU ; Bin LI ; Jianbo TIAN ; Xiaoping MIAO ; Ying ZHU
Chinese Journal of Preventive Medicine 2025;59(5):581-587
Objective:To systematically investigate the association and regulatory mechanism between genetic variants in the binding region of pancreatic and duodenal homeobox 1 (PDX1) and pancreatic cancer susceptibility in the Chinese population.Methods:Chromatin immunoprecipitation sequencing (ChIP-seq) was performed using the human pancreatic cancer cell line BxPC-3 to identify and annotate genetic variants within the PDX1 binding region. A two-center case-control study was conducted, and logistic regression models were employed to analyze the association between PDX1-related variants and pancreatic cancer susceptibility. Functional experiments were performed to elucidate the molecular mechanisms of these genetic variants.Results:ChIP-seq analysis identified 1 608 PDX1 binding regions. SNPs within these regions were significantly enriched in susceptible areas of pancreatic cancer ( P<0.001). The common variant rs154659, located within the most significant PDX1 binding peak, was further investigated. The multivariate logistic regression model showed that compared with individuals with TT genotype, individuals with CC genotype had a reduced risk of pancreatic cancer by 29.2% ( OR=0.708, 95% CI: 0.589-0.850). Functional studies demonstrated that the rs154659[C] allele displayed higher relative luciferase activity than the rs154659[T] allele. Knockdown of PDX1 significantly attenuated the relative luciferase differences between the two alleles. Conclusion:Genetic variants in the PDX1 binding region are associated with pancreatic cancer risk. The rs154659 modulates pancreatic cancer susceptibility by specifically altering PDX1 binding activity.
6.Role and mechanism of osteoblast autophagy in exercise-related improvements in osteoporosis
Xiaoyan YI ; Xinyu ZENG ; Yuwei LIU ; Yuxin YANG ; Chenghao ZHONG ; Jianbo HU ; Xianghe CHEN
Chinese Journal of Comparative Medicine 2025;35(3):156-169
The role of osteoblast(OB)autophagy in regulating bone metabolism is a research hotspot in the field of biomedicine.OB autophagy can regulate osteoporosis(OP)induced by aging,oxidative stress,estrogen deficiency,and glucocorticoids(GCs)by mediating factors such as run and cysteine rich domain containing Beclin-1 interacting protein(RUBCN),silent information regulator of transcription 1(SIRT1),and osteoprotegerin(OPG).OB autophagy can also regulate OP by activating notch receptor(Notch)and forkhead box protein O subfamily(FoxO),up-regulating the expression of osteogenic transcription factors(such as Runx2 and Osterix),and mediating the amp-activated protein kinase(AMPK),mammalian target of rapamycin complex(mTOR),Wnt,and c-Jun n terminal kinase(JNK)pathways to act on OB and osteoclast(OC)differentiation.Exercise is an important means of improving OP,and its molecular mechanism is closely related to the up-regulation of phosphatidylinositol 3 kinase(PI3K),adenosine monophosphate(AMP),tumor necrosis factor-alpha(TNF-α),and SIRT1 expression.These in turn activate key factors or pathways(including AMPK,mTOR,Wnt,PI3K/protein kinase B(Akt)/mTOR,and nuclear transcription factor-KB(NF-κB)),regulate the expression of downstream target genes(β-catenin,mTOR,FoxO3a and B cell lymphoma-2(Bcl-2))to up-regulate the expression of autophagy factors(Beclin-1,autophagy related genes(ATG),and microtubule-associated protein 1 light chain 3(LC3)),and promote OB autophagy to restore the dynamic balance in the body,thereby regulating bone formation and bone resorption and improving OP.The relationships among exercise,OB autophagy and OP,however,remain unclear and there is currently a lack of systematic reviews.Here we review and analyze the mechanism of OB autophagy in relation to exercise-induced improvements in OP,and provide a new theoretical basis and research ideas for the prevention and treatment of OP.
7.Childhood trauma and the transdiagnostic mental disorders: current research and future prospects
Chinese Journal of Psychiatry 2025;58(11):815-821
The transdiagnostic impact of childhood trauma on mental disorders has attracted increasing attention. Although notable progress has been made, existing studies are limited by methodological constraints and narrow research perspectives. This review summarizes the current evidence on the transdiagnostic associations between childhood trauma and mental disorders, and outlines the potential psychopathological mechanisms underlying these relationships. Furthermore, it provides an outlook on future research directions, aiming to enhance our understanding of how childhood trauma contributes to transdiagnostic manifestations of mental illness.
8.Toripalimab-related ureteritis:a case report
Jianbo FENG ; Yanyan ZHAO ; Huixian ZHANG ; Zhen LIU
Chinese Journal of Pharmacoepidemiology 2025;34(1):105-110
A 48-year-old woman was treated with toripalimab for triple negative breast cancer.She developed symptoms of pollakiuria and urinary urgency after 1st cycle of toripalimab,and was hospitalized for severe abdominal pain after 2nd circle of treatment,after symptomatic treatment,the condition improved.However,after the 3rd,4th,and 5th cycles of medication,the symptoms recurred.The symptoms did not reappear after discontinuing toripalimab.Therefore,ureteritis associated with immune checkpoint inhibitors(ICI)was considered based on case characteristics,urine routine,urine culture,ultrasound and CT findings.According to Naranjo's Assessment Scale,the association between toripalimab and ureteritis was considered"definite".The possibility of ureteritis associated with ICI should be considered if symptoms of urinary tract irritation occur during the use of toripalimab,and urine analysis,urine culture,and imaging examination should be conducted to detect such adverse reactions earlier.
9.Progress in the Treatment of Insomnia with Traditional Chinese Medicine and Active Ingredients
Xingyi LIU ; Jialin PAN ; Jianbo HUANG
Journal of Zhejiang Chinese Medical University 2025;49(8):1078-1084
[Objective]To sort out Chinese drugs and its active ingredients for improving sleep,analysis functions and similarities and differences in mechanisms,explore new approaches to the treatment of insomnia with TCM.[Methods]By using keywords such as"insomnia""Chinese drugs""ingredients",research reports on insomnia treatment with Chinese medicine in China National Knowledge Infrastructure(CNKI),Wanfang Databases,ScienceDirect,Web of Science,and PubMed in the past 15 years were retrieved.The effects and potential mechanisms of Chinese drugs in regulating sleep were analyzed and summarized deeply in a layered approach,focusing on formulas,couplet drugs,single drugs and active ingredients.Based on this,feasible directions for research on Chinese medicine treatment of insomnia were proposed.[Results]Totally 115 relevant literatures are acquired.Insomnia is often related to dysfunction of organs such as the liver,gallbladder and stomach.Heart and spleen deficiency,heart and kidney dysfunction,phlegm-heat disturbing the heart and imbalance of Yin and Yang are important causes of sleep disorders;Chinese drugs,formulas and active ingredients each exert therapeutic effects on insomnia by regulating the overall balance of Qi and blood,Yin and Yang,improving the functions of important organs such as the heart,kidney and gallbladder,and intervening in specific targets.Commonly used drugs are mainly tonifying,calming and heat-clearing ones.The mechanism of Chinese drugs in treating insomnia is mainly related to improving the structure of intestinal microbiota,reducing the expression level of inflammatory cytokines and regulating neurotransmitters and the balance of hormone levels.There are differences in the effects of different Chinese medicine and their formulas,but their characteristics and advantages are not obvious;the correlation among the drugs in formulas,different ingredients of single medicine and the interaction among active ingredients still need to be further studied.[Conclusion]Chinese drugs formulas,drug pairs,single medicine and its active ingredients,although are used in different forms,all aim to regulate the balance of Qi and blood,Yin and Yang in the body and the functions of organs,and further restore the normal secretion of neurotransmitters,hormones and so on,and improve sleep quality.Alternative therapies based on intestinal function regulation may be a new strategy for treating insomnia.
10.Management strategies and insights in a complex, prolonged case of encapsulating peritoneal sclerosis
Xianghui CHEN ; Dongfeng GU ; Jianbo LI ; Yuanying LIU ; Shurong LI ; Fengxian HUANG ; Wei CHEN ; Haiping MAO
Chinese Journal of Nephrology 2025;41(8):615-619
This article reviews the diagnosis, therapeutic approaches, and subsequent care for a patient with a complex, long-standing history of encapsulating peritoneal sclerosis (EPS). A 40-year-old male, who had been on peritoneal dialysis (PD) for 11 years, encountered refractory peritonitis, leading to the removal of PD catheter and the subsequent diagnosis of EPS. The patient was transitioned to hemodialysis (HD) and prescribed tamoxifen to mitigate peritoneal fibrosis. After 4 months on HD, the patient underwent a kidney transplant, but acute rejection episode caused the transplanted kidney to fail 3 months postoperatively, necessitating a return to HD. Over the past 7 years, the patient has been repeatedly hospitalized due to recurrent bowel obstructions and infected abdominal fluid accumulation. A multidisciplinary approach, including anti-infective therapy, gastrointestinal intervention, nutritional support, and psychological care, has been instrumental in managing symptoms, and sustaining life. This case underscores the importance of recognizing EPS in long-term PD patients with peritonitis. While discontinuing PD, switching to HD, or receiving kidney transplantation do not halt the progression of EPS, optimized comprehensive management can extend the patient's survival.

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