1.Mechanism and therapeutic targets of angiopoietin-like protein 4 in diabetic retinopathy
Jingrong FENG ; Yan LI ; Xiaocao REN ; Jixin LI ; Yu MA ; Wenfang ZHANG ; Yi YANG
International Eye Science 2026;26(5):785-791
Diabetic retinopathy(DR)remains the leading cause of vision loss in patients with diabetes. Current anti-vascular endothelial growth factor(VEGF)therapies are limited by inadequate response in some patients and the necessity for repeated intravitreal injections, underscoring the urgent need for novel therapeutic targets. Angiopoietin-like protein 4(ANGPTL4), a multifunctional secreted protein, has emerged as a critical regulator in the pathogenesis and progression of DR, positioning it as a promising interventional target. This review systematically elaborates the biological characteristics of ANGPTL4, with a focus on its expression dynamics, molecular mechanisms, and regulatory networks rolesin the development of DR. Furthermore, the prospects of ANGPTL4-targeted therapeutic strategies are discussed, aiming to offer new insights and directions for understanding DR pathogenesis, advancing multi-target drug development, and improving clinical management.
2.Ionizing Radiation-induced Lens Injury: Epidemiology, Dose-effect Relationship, and Molecular Mechanisms
Cheng-Hao HU ; Shao-Han REN ; Hai-Tao ZHANG ; Jing-Ming ZHAN
Progress in Biochemistry and Biophysics 2026;53(3):688-696
The crystalline lens of the eye is recognized as one of the most radiosensitive tissues in the human body. While the International Commission on Radiological Protection (ICRP) has classified ionizing radiation (IR)-induced cataracts as a tissue reaction (deterministic effect) and subsequently reduced the occupational equivalent dose limit for the lens, significant uncertainties remain regarding the precise dose threshold and the complex biological pathways driving lens opacification. This review provides a comprehensive synthesis of current knowledge concerning radiation-induced lens damage, integrating epidemiological exposure characteristics with dose-response modeling and mechanistic molecular insights. First, we analyze exposure characteristics through four epidemiological dimensions: dose, time, space, and population. Clinical evidence suggests that radiation cataracts—particularly posterior subcapsular opacities—exhibit a distinct latency period that is inversely correlated with dose. We highlight that risk is not confined to acute high-dose scenarios (such as in atomic bomb survivors) but is increasingly relevant in chronic low-dose occupational settings (e.g., interventional radiology) and medical diagnostics (e.g., CT scans). Crucially, individual susceptibility is modified by genetic background, age, and environmental co-factors, complicating risk assessment. Second, we critically examine the dose-effect relationship. Although the ICRP suggests a threshold of 0.5 Gy, emerging data challenge the traditional threshold model, with some studies advocating for a linear non-threshold (LNT) relationship. We further discuss the critical roles of radiation quality and dose rate. High linear energy transfer (LET) radiation demonstrates a significantly higher relative biological effectiveness (RBE) for cataractogenesis compared to low-LET radiation. Paradoxically, and unlike many other tissues, the lens may exhibit an “inverse dose-rate effect,” where fractionated or protracted exposures potentially enhance biological damage—a finding that challenges classical radiobiological paradigms. Third, drawing upon the “cataractogenic load” hypothesis and the unique physiological constraints of the lens, this review elucidates the multidimensional molecular mechanisms driving radiation-induced opacification. Key mechanisms include four aspects. (1) DNA damage and repair: IR induces DNA double-strand breaks (DSBs) that, due to the lens’ limited repair capacity (modulated by genes such as ATM, Ptch1, and Ercc2), lead to the accumulation of damage. (2) Antioxidant defense system: dysfunction of the Nrf2/HO-1 antioxidant axis results in redox imbalances, triggering NF-κB-mediated inflammation and protein aggregation. (3) Cell proliferation and senescence: IR disrupts cell cycle regulation, causing a dichotomy of effects—driving premature senescence in some cell populations (evidenced by ATM nuclear foci) while inducing aberrant proliferation via growth factor upregulation (FGF2, TGFβ) in others. (4) Cell migration and adhesion: activation of the Wnt/β‑catenin pathway and alterations in the E-cadherin complex promote the abnormal migration of epithelial cells to the posterior capsule, a hallmark of radiation-induced cataracts. In conclusion, radiation-induced cataractogenesis is a multifactorial process in which genetic susceptibility and environmental stressors converge to overwhelm the lens’ homeostatic thresholds. Future research must prioritize longitudinal cohort studies to refine dose thresholds and employ multi-omics approaches to map the crosstalk between DNA damage responses and matrix remodeling. Establishing a robust mechanistic model is essential for developing targeted radioprotective strategies and optimizing radiation protection standards for occupational and medical safety.
3.Pathogenesis, clinical assessment, and intervention of fatigue in patients with primary biliary cholangitis
Weirui REN ; Chuang ZHANG ; Wenjuan ZHAO ; Junmin WANG
Journal of Clinical Hepatology 2026;42(3):690-696
Primary biliary cholangitis (PBC) is an autoimmune liver disease characterized by intrahepatic cholestasis, while fatigue is a common symptom of PBC that significantly affects the quality of life of patients. The pathogenesis of fatigue is complex and may be associated with the factors such as cholestasis-induced inflammation, gut microbiota dysbiosis, brain structural and functional abnormalities, and mitochondrial dysfunction. At present, first-line therapies and liver transplantation have a limited effect in alleviating fatigue, and there is still a lack of standardized comprehensive assessment system. Emerging drugs and non-pharmaceutical interventions, including lifestyle modifications, have shown potential application prospects. This article systematically reviews the research advances in the clinical manifestations, pathogenesis, clinical assessment, and intervention of fatigue in PBC patients, in order to provide a reference for optimizing treatment strategies and promoting the research and development of new therapies.
4.WANG Qingguo's Experience in Treatment of Headache Based on the Concept of "Achieving Harmony by Unblocking and Balancing"
Chuxin ZHANG ; Zilin REN ; Yang ZHAO ; Jinhua HAN ; Bomin ZHANG ; Fafeng CHENG ; Changxiang LI ; Xueqian WANG ;
Journal of Traditional Chinese Medicine 2026;67(9):935-940
This paper summarizes professor WANG Qingguo's experience in treatment of headache based on the "achieving harmony by unblocking and balancing" concept. It is considered that although the pathogenesis of headache is generally attributed to "pain arises from obstruction" and "pain arises from malnourishment", clinical presentations often involve a complex mixture of deficiency and excess, as well as cold and heat patterns. Professor WANG proposes the diagnostic and therapeutic theory of "achieving harmony by unblocking and balancing", advocating for equal emphasis on "freeing the flow of qi and blood" and "regulating the balance of yin and yang". He has summarized eight treatment methods for common headache patterns. For wind-cold attacking the collaterals, treatment should focus on dispersing and unblocking through modified Gegen Decoction (葛根汤). For wind-dampness binding, it is recommended to unblock and drain, using modified Qingshang Juantong Decoction (清上蠲痛汤). For damp-heat congestion, unblocking and clearing is the method, using modified Toufeng Shen Formula (头风神方). For liver-gallbladder qi constraint, unblocking and soothing is the treatment principle, and modified Sanpian Decoction (散偏汤) is suggested. For insufficiency of center qi, even supplementation method is recommended, and modified Yiqi Congming Decoction (益气聪明汤) can be used. For liver yang hyperactivity, unblocking and subduing are combined, using modified Xunlong Decoction (驯龙汤). For deficiency-cold in the liver and stomach, warming, harmonizing, unblocking, and descending are applied, using modified Wuzhuyu Decoction (吴茱萸汤). For blood deficiency with cold congelation, unblocking and nourishing are undertaken together, using modified Danggui Sini Decoction (当归四逆汤). The ultimate goal is to restore the dynamic balance of yin, yang, qi, and blood in the body, thereby allevia-ting pain by restoring clarity and function to the head orifices.
5.WANG Qingguo's Experience in Treatment of Headache Based on the Concept of "Achieving Harmony by Unblocking and Balancing"
Chuxin ZHANG ; Zilin REN ; Yang ZHAO ; Jinhua HAN ; Bomin ZHANG ; Fafeng CHENG ; Changxiang LI ; Xueqian WANG ;
Journal of Traditional Chinese Medicine 2026;67(9):935-940
This paper summarizes professor WANG Qingguo's experience in treatment of headache based on the "achieving harmony by unblocking and balancing" concept. It is considered that although the pathogenesis of headache is generally attributed to "pain arises from obstruction" and "pain arises from malnourishment", clinical presentations often involve a complex mixture of deficiency and excess, as well as cold and heat patterns. Professor WANG proposes the diagnostic and therapeutic theory of "achieving harmony by unblocking and balancing", advocating for equal emphasis on "freeing the flow of qi and blood" and "regulating the balance of yin and yang". He has summarized eight treatment methods for common headache patterns. For wind-cold attacking the collaterals, treatment should focus on dispersing and unblocking through modified Gegen Decoction (葛根汤). For wind-dampness binding, it is recommended to unblock and drain, using modified Qingshang Juantong Decoction (清上蠲痛汤). For damp-heat congestion, unblocking and clearing is the method, using modified Toufeng Shen Formula (头风神方). For liver-gallbladder qi constraint, unblocking and soothing is the treatment principle, and modified Sanpian Decoction (散偏汤) is suggested. For insufficiency of center qi, even supplementation method is recommended, and modified Yiqi Congming Decoction (益气聪明汤) can be used. For liver yang hyperactivity, unblocking and subduing are combined, using modified Xunlong Decoction (驯龙汤). For deficiency-cold in the liver and stomach, warming, harmonizing, unblocking, and descending are applied, using modified Wuzhuyu Decoction (吴茱萸汤). For blood deficiency with cold congelation, unblocking and nourishing are undertaken together, using modified Danggui Sini Decoction (当归四逆汤). The ultimate goal is to restore the dynamic balance of yin, yang, qi, and blood in the body, thereby allevia-ting pain by restoring clarity and function to the head orifices.
6.Analysis of diagnosis and treatment of Epstein-Barr virus-negative diffuse large B-cell lymphoma (GCB type) after kidney transplantation
Yan LI ; Xiaoyan ZHANG ; Xiang REN ; Tong XU ; Guohui WANG ; Ruochen QI ; Dongjuan WU ; Kepu LIU ; Weijun QIN ; Shuaijun MA
Organ Transplantation 2026;17(2):257-265
Objective To analyze the clinical and therapeutic characteristics of Epstein-Barr virus (EBV)-negative posttransplant lymphoproliferative disease (PTLD) with diffuse large B-cell lymphoma (DLBCL) in the context of specific cases and literature. Methods A case of EBV-negative DLBCL (GCB type) after kidney transplantation is reported. The patient was a 45-year-old male who underwent living-related kidney transplantation in 2016 and has been receiving triple immunosuppressive therapy with tacrolimus, mycophenolate mofetil and methylprednisolone since then. In 2024, the patient presented with intermittent fever, night sweats and gastrointestinal symptoms. The diagnosis was confirmed by endoscopic pathology, immunohistochemical staining and positron emission tomography/computed tomography. The R-CDOP regimen (rituximab + cyclophosphamide + liposomal doxorubicin + vincristine + dexamethasone) was used for treatment. Results The patient was diagnosed with EBV-negative DLBCL (GCB type, Ann Arbor stage Ⅳ B). After 4 cycles of R-CDOP chemotherapy, the efficacy assessment was partial remission, and the transplant kidney function remained stable. Conclusions For EBV-negative PTLD after kidney transplantation, it is necessary to break through the "virus-dependent" diagnostic thinking. In clinical practice, the focus should be on protecting the transplant kidney, and individualized treatment plans should be developed for patients.
7.Mechanisms of Tripterygium wilfordii and Its Active Ingredients in Treatment of Diabetic Kidney Disease: A Review
Peidong ZHAO ; Yanyan GUO ; Xiangge REN ; Jiawei ZHANG ; Wensheng ZHAI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(7):352-362
Diabetic kidney disease (DKD), a common complication of diabetes mellitus, is a leading global cause of end-stage renal disease (ESRD). Current therapeutic strategies primarily focus on symptomatic management but exhibit limited efficacy in halting disease progression to ESRD, and some drugs carry non-negligible toxic side effects. Traditional Chinese medicine (TCM) has a long history in treating DKD, with single TCM and TCM compounds demonstrating unique advantages in multi-target, multi-pathway, and multi-effect therapeutic interventions. Tripterygium wilfordii (TW), known for its effects in promoting blood circulation, dredging collaterals, dispelling wind, removing dampness, reducing swelling, and alleviating pain, contains bioactive components such as Tripterygium glycosides (TWG), triptolide (TPL), tripdiolide (TPD), and celastrol (CEL). The active ingredients possess various functions, including regulating immune-inflammatory balance, ameliorating renal fibrosis and glomerulosclerosis, combating oxidative stress, protecting podocytes, and improving glucose and lipid metabolism, all of which play a significant role in the treatment of DKD. This review summarized the mechanisms underlying the therapeutic effects of T. wilfordii and its active ingredients on DKD, aiming to provide insights for clinical management and novel drug development of DKD.
8.A systematic review of application value of machine learning to prognostic prediction models for patients with lumbar disc herniation
Zhipeng WANG ; Xiaogang ZHANG ; Hongwei ZHANG ; Xiyun ZHAO ; Yuanzhen LI ; Chenglong GUO ; Daping QIN ; Zhen REN
Chinese Journal of Tissue Engineering Research 2026;30(3):740-748
OBJECTIVE:Based on different algorithms of machine learning,the prediction model of lumbar disc herniation has become a trend and hot spot in the development of precision medicine.However,there is limited evidence on the reporting quality and methodological quality of prediction models of lumbar disc herniation outcomes using machine learning.This article is aimed to explore the performance of machine learning algorithms in predicting the prognosis of lumbar disc herniation by comprehensively analyzing the report quality and risk of bias of previous studies that developed and validated prognosis prediction models based on machine learning through a comprehensive literature search,in order to explore the performance of machine learning algorithms in predicting the prognosis of lumbar disc herniation.METHODS:The databases of CNKI,WanFang,VIP,SinOMED,PubMed,Web of Science,Embase,and The Cochrane Library were searched by computer.Studies on the use of machine learning to develop(and/or validate)prognostic prediction models for lumbar disc herniation were collected from the inception of the database to December 31,2023.Two researchers independently screened the literature,extracted data,and assessed the risk of bias of the included studies.The reporting quality and risk of bias of the included studies were assessed by the Multivariable Transparent Reporting of Predictive Models(TRIPOD)statement and the Predictive Model Risk of Bias Assessment Tool(PROBAST).The results of the evaluation were analyzed using descriptive statistics and visual charts.RESULTS:(1)A total of 23 articles were included,and the TRIPOD compliance of each study ranged from 11%to 87%,with a median compliance of 54%.The quality of reporting of titles,detailed descriptions of treatment measures,blinding of predictors,handling of missing data,details of risk stratification,specific procedures for enrollment,model interpretation,and model performance was mostly poor,with TRIPOD adherence rates ranging from 4%to 35%.(2)Of all included studies,61%had a high risk of bias and 39%had an unclear overall risk of bias.The area under the curve,accuracy,sensitivity and specificity were used to evaluate the performance of the model.The areas under the curve of 20 models were reported,ranging from 0.561 to 0.999.Three models reported the accuracy of the model,ranging from 82.07%to 89.65%.(3)Among all included studies,the statistical analysis domain was most often assessed as having a high risk of bias,mainly due to the small number of valid samples,the selection of predictors based on univariate analysis and the lack of calibration and discrimination assessment of the model in the study.CONCLUSION:These results indicate that machine learning can achieve good predictive ability in the development and validation of prognostic models for lumbar disc herniation.The commonly used algorithms include regression algorithm,support vector machine,decision tree,random forest,artificial neural network,naive Bayes and other algorithms.Reasonable algorithms combined with clinical practice can improve the accuracy of prognosis prediction of lumbar disc herniation.However,the reporting and methodological quality of prognosis prediction models based on machine learning are poor,the prediction performance of different models varies greatly,and the generalization and extrapolation of research models are unclear.There is an urgent need to improve the design,implementation and reporting of such studies.To promote the application of machine learning in the clinical practice of lumbar disc herniation prediction models,it is necessary to comprehensively consider various predictors related to the prognosis of the disease before modeling,and strictly follow the relevant standards of PROBAST tool during modeling.
9.Exploration in Pathological Mechanisms of Myocardial Infarction and Osteoporosis Based on "Heart-bone" Axis Theory
Yuzhuo ZHANG ; Qi SHANG ; Hui REN ; Bin LIU ; Jingzhi ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(3):251-257
Myocardial infarction (MI) and osteoporosis (OP), as two prevalent metabolic diseases with high morbidity and mortality rates, are respectively characterized by cardiovascular system dysfunction and bone homeostasis imbalance, collectively posing significant global public health challenges. While clinically often considered as independent diseases, recent studies have revealed shared pathological mechanisms between the two. This study initiated its exploration from the traditional Chinese medicine concept of the "heart-bone" axis, systematically analyzing the correlation between MI and OP from perspectives including hemodynamics, neuroendocrinology, calcium homeostasis, inflammation and vascular injury, as well as hormone levels. By discussing the pathological mechanisms of "heart disease affecting the bones and bone disease affecting the heart", the study also elucidated advancements in both Western and traditional Chinese medicine treatments. The goal is to provide novel insights and methodologies for the prevention and treatment of "heart-bone comorbidities", thereby facilitating comprehensive management of cardiovascular and skeletal diseases.
10.Exploration in Pathological Mechanisms of Myocardial Infarction and Osteoporosis Based on "Heart-bone" Axis Theory
Yuzhuo ZHANG ; Qi SHANG ; Hui REN ; Bin LIU ; Jingzhi ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(3):251-257
Myocardial infarction (MI) and osteoporosis (OP), as two prevalent metabolic diseases with high morbidity and mortality rates, are respectively characterized by cardiovascular system dysfunction and bone homeostasis imbalance, collectively posing significant global public health challenges. While clinically often considered as independent diseases, recent studies have revealed shared pathological mechanisms between the two. This study initiated its exploration from the traditional Chinese medicine concept of the "heart-bone" axis, systematically analyzing the correlation between MI and OP from perspectives including hemodynamics, neuroendocrinology, calcium homeostasis, inflammation and vascular injury, as well as hormone levels. By discussing the pathological mechanisms of "heart disease affecting the bones and bone disease affecting the heart", the study also elucidated advancements in both Western and traditional Chinese medicine treatments. The goal is to provide novel insights and methodologies for the prevention and treatment of "heart-bone comorbidities", thereby facilitating comprehensive management of cardiovascular and skeletal diseases.

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