1.Effects of Tripterygium wilfordii multiglycoside on renal injury in rats with diabetic nephropathy
Chong ZHANG ; Chundong SONG ; Mo WANG ; Shuang LIANG ; Xiaoxiao GUO ; Hanhan ZHANG ; Peijia LI ; Ke SONG ; Chenchen CHEN
China Pharmacy 2025;36(7):815-819
OBJECTIVE To investigate the effects of Tripterygium wilfordii multiglycoside (TWM) on renal injury in diabetic nephropathy (DN) rats through tumor protein p53/microRNA-214 (miR-214)/UNC-51-like kinase 1 (ULK1) axis. METHODS Male SD rats were randomly divided into normal group (n=6) and modeling group (n=28); the modeling group was fed with high fat and high glucose plus intraperitoneal injection of streptozotocin to establish DN model. The modeled rats were randomly divided into model group, valsartan group [8.33 mg/(kg·d)] and TWM group[6.25 mg/(kg·d)], with 8 rats in each group. Rats in each group were gavaged with the corresponding medication or normal saline, once a day, for 6 consecutive weeks. After the last medication, liver and renal function indexes [24 h urinary total protein (24 h-UTP), blood urea nitrogen (BUN), serum creatinine (SCr), albumin (ALB), alanine transaminase (ALT)], blood lipid indexes (triglycerides, total cholesterol) and blood glucose index (fasting blood glucose) in urine/blood sample of rats were detected in each group. Renal pathologic change was observed, protein and mRNA expressions of p53, ULK1, Beclin-1 and microtubule-associated protein 1 light chain 3 (LC3), and expression of miR-214 in renal tissue were also determined. RESULTS Compared with the normal group, the renal tubular epithelium of rats in the model group showed obvious edema, cell swelling, accompanied by lymphocyte infiltration; the levels of 24h-UTP, BUN, SCr, ALT and glycolipid indexes, the expressions of p53 protein and mRNA, as well as the expression of miR-214 in rats in the model group and administration groups were significantly increased or up-regulated, while ALB level, LC3-Ⅱ/LC3-Ⅰ, the expressions of LC3 mRNA, the expressions of ULK1, Beclin-1 protein and mRNA were significantly decreased or down-regulated (P<0.01). Compared with the model group, the histopathological damage of the kidney in rats was improved in administration groups; the levels of 24 h-UTP, BUN, SCr, ALT and glycolipid indexes, the expressions of p53 protein and mRNA, as well as the expression of miR-214 were all significantly decreased or down-regulated, while ALB level, LC3-Ⅱ/LC3-Ⅰ, the expressions of LC3 mRNA, the expressions of ULK1 and Beclin-1 protein and mRNA were significantly increased or up-regulated (P<0.01). CONCLUSIONS TG can alleviate renal damage in DN rats, and improve their liver and renal function, as well as glucose and lipid levels. These effects may be related to the regulation of the p53/miR-214/ULK1 axis and the restoration of cellular autophagy.
2.Correlation Between Neutrophil to Lymphocyte Ratio and eGFR in Diabetic Patients: A Cross-sectional Analysis Based on NHANES Data
Chunyu JIA ; Gangan WANG ; Jiahui WANG ; Gang CHEN ; Ke ZHENG ; Xuemei LI
Medical Journal of Peking Union Medical College Hospital 2025;16(2):379-385
To investigate the association between neutrophil to lymphocyte ratio (NLR) andestimated glomerular filtration rate (eGFR) in patients with diabetes using large-scale data. Across-sectional analysis was conducted using data from diabetic patients in the National Health and Nutrition Examination Survey database from 2009 to 2014. Differences in NLR between patients with and without chronickidney disease (CKD) were compared. Pearson correlation analysis and multiple linear regression models wereapplied to assess the relationship between NLR and eGFR. A total of 857 diabetic patients were included, with 190 (22.2%) having CKD and 667 (77.8%) without CKD. NLR was significantly higher in patients with CKD compared to those without CKD (2.94±1.69 vs.2.36±1.98, NLR is independently negatively associatedwith eGFR in diabetic patients, demonstrating potential clinical value as an indicator of kidney function declineand CKD risk in this population.
3.Terms Related to The Study of Biomacromolecular Condensates
Ke RUAN ; Xiao-Feng FANG ; Dan LI ; Pi-Long LI ; Yi LIN ; Zheng WANG ; Yun-Yu SHI ; Ming-Jie ZHANG ; Hong ZHANG ; Cong LIU
Progress in Biochemistry and Biophysics 2025;52(4):1027-1035
Biomolecular condensates are formed through phase separation of biomacromolecules such as proteins and RNAs. These condensates exhibit liquid-like properties that can futher transition into more stable material states. They form complex internal structures via multivalent weak interactions, enabling precise spatiotemporal regulations. However, the use of inconsistent and non-standardized terminology has become increasingly problematic, hindering academic exchange and the dissemination of scientific knowledge. Therefore, it is necessary to discuss the terminology related to biomolecular condensates in order to clarify concepts, promote interdisciplinary cooperation, enhance research efficiency, and support the healthy development of this field.
4.The characteristics and mechanism of dynamic changes of different components in microenvironment in regulating the progression of liver fibrosis
Huilan ZHAO ; Zongxu LIU ; Shumin LI ; Zhifeng WANG ; Minghui LIU ; Qian SHENG ; Kunbin KE ; Xinan SHI
Journal of Clinical Hepatology 2025;41(4):755-760
The liver has diverse functions such as metabolism, detoxification, and immune defense, and the maintenance of hepatic microenvironment homeostasis is crucial for overall bodily health. The hepatic microenvironment consists of the components such as parenchymal cells, non-parenchymal cells, and non-cellular components. Chronic inflammatory responses induced by various etiological factors may promote the formation and progression of liver fibrosis. During the dynamic progression of liver fibrosis, from the early to advanced stages, various components within the hepatic microenvironment undergo a series of changes, which can promote the malignant progression of liver fibrosis. An in-depth exploration of the mechanisms underlying such changes in each component of the liver fibrosis microenvironment is of great significance for understanding the pathogenesis of liver fibrosis and discovering potential treatment strategies.
5.A Case Report of Pachydermoperiostosis by Multidisciplinary Diagnosis and Treatment
Jie ZHANG ; Yan ZHANG ; Li HUO ; Ke LYU ; Tao WANG ; Ze'nan XIA ; Xiao LONG ; Kexin XU ; Nan WU ; Bo YANG ; Weibo XIA ; Rongrong HU ; Limeng CHEN ; Ji LI ; Xia HONG ; Yan ZHANG ; Yagang ZUO
JOURNAL OF RARE DISEASES 2025;4(1):75-82
A 20-year-old male patient presented to the Department of Dermatology of Peking Union Medical College Hospital with complaints of an 8-year history of facial scarring, swelling of the lower limbs, and a 4-year history of scalp thickening. Physical examination showed thickening furrowing wrinkling of the skin on the face and behind the ears, ciliary body hirsutism, blepharoptosis, and cutis verticis gyrate. Both lower limbs were swollen, especially the knees and ankles. The skin of the palms and soles of the feet was keratinized and thickened. Laboratory examination using bone and joint X-ray showed periostosis of the proximal middle phalanges and metacarpals of both hands, distal ulna and radius, tibia and fibula, distal femurs, and metatarsals.Genetic testing revealed two variants in
6.Molecular mechanism of Shenling Baizhu powder in treatment of cancer cachexia based on network pharmacology
Gang KE ; Qingke DONG ; Shirong XIAO ; Qian GONG ; Rong LI ; Daijie WANG
Journal of Pharmaceutical Practice and Service 2025;43(5):242-250
Objective To analyze the pharmacological mechanism of Shenling Baizhu powder in the treatment of cancer cachexia based on the network pharmacological method and provide a reference for the clinical application of classical traditional Chinese medicine(TCM) prescriptions. Methods Through TCMSP and BATMAN-TCM databases, the main chemical components and their targets of the TCM prescription of Shenling Baizhu powder were obtained, and the active components of the TCM were screened according to ADME. The main targets of cancer cachexia were obtained through OMIM, Genecards, Disgenet and DRUGBANK databases, and protein interaction analysis was conducted using String platform to build a PPI network. The “drug-active ingredient-target” network of Shenling Baizhu powder was constructed by Cytoscape 3.7.2 software, and then the biological processes and pathways involved were analyzed by using Metascape platform. Finally, molecular docking verification was conducted by Discovery Studio. Results The core active ingredients of Shenling Baizhu powder in the treatment of cancer cachexia were quercetin, kaempferol, pyrolignous acid, stigmasterol, luteolin, β-sitosterol, etc. The core targets were AKT1, TP53, TNF, IL-6, MAPK3, CASP3, JUN, CTNNB1, HIF1A, EGFR, etc. The molecular docking test also showed that the top 10 active ingredients, such as pyrolignous acid, stigmasterol and β-sitosterol, had good binding activities with most of the target sites. The biological pathway of Shenling Baizhu powder in treating cancer cachexia wss mainly to regulate tumor related pathway, metabolism related pathway, inflammatory factors and appetite related pathway. Conclusion This study preliminarily revealed the mechanism of action of Shenling Baizhu powder in treating cancer cachexia with multi components, multi targets and multi pathways, which provided a basis for the clinical development and utilization of Shenling Baizhu powder.
7.PDGF-C: an Emerging Target in The Treatment of Organ Fibrosis
Chao YANG ; Zi-Yi SONG ; Chang-Xin WANG ; Yuan-Yuan KUANG ; Yi-Jing CHENG ; Ke-Xin REN ; Xue LI ; Yan LIN
Progress in Biochemistry and Biophysics 2025;52(5):1059-1069
Fibrosis, the pathological scarring of vital organs, is a severe and often irreversible condition that leads to progressive organ dysfunction. It is particularly pronounced in organs like the liver, kidneys, lungs, and heart. Despite its clinical significance, the full understanding of its etiology and complex pathogenesis remains incomplete, posing substantial challenges to diagnosing, treating, and preventing the progression of fibrosis. Among the various molecular players involved, platelet-derived growth factor-C (PDGF-C) has emerged as a crucial factor in fibrotic diseases, contributing to the pathological transformation of tissues in several key organs. PDGF-C is a member of the PDGFs family of growth factors and is synthesized and secreted by various cell types, including fibroblasts, smooth muscle cells, and endothelial cells. It acts through both autocrine and paracrine mechanisms, exerting its biological effects by binding to and activating the PDGF receptors (PDGFRs), specifically PDGFRα and PDGFRβ. This binding triggers multiple intracellular signaling pathways, such as JAK/STAT, PI3K/AKT and Ras-MAPK pathways. which are integral to the regulation of cell proliferation, survival, migration, and fibrosis. Notably, PDGF-C has been shown to promote the proliferation and migration of fibroblasts, key effector cells in the fibrotic process, thus accelerating the accumulation of extracellular matrix components and the formation of fibrotic tissue. Numerous studies have documented an upregulation of PDGF-C expression in various fibrotic diseases, suggesting its significant role in the initiation and progression of fibrosis. For instance, in liver fibrosis, PDGF-C stimulates hepatic stellate cell activation, contributing to the excessive deposition of collagen and other extracellular matrix proteins. Similarly, in pulmonary fibrosis, PDGF-C enhances the migration of fibroblasts into the damaged areas of lungs, thereby worsening the pathological process. Such findings highlight the pivotal role of PDGF-C in fibrotic diseases and underscore its potential as a therapeutic target for these conditions. Given its central role in the pathogenesis of fibrosis, PDGF-C has become an attractive target for therapeutic intervention. Several studies have focused on developing inhibitors that block the PDGF-C/PDGFR signaling pathway. These inhibitors aim to reduce fibroblast activation, prevent the excessive accumulation of extracellular matrix components, and halt the progression of fibrosis. Preclinical studies have demonstrated the efficacy of such inhibitors in animal models of liver, kidney, and lung fibrosis, with promising results in reducing fibrotic lesions and improving organ function. Furthermore, several clinical inhibitors, such as Olaratumab and Seralutinib, are ongoing to assess the safety and efficacy of these inhibitors in human patients, offering hope for novel therapeutic options in the treatment of fibrotic diseases. In conclusion, PDGF-C plays a critical role in the development and progression of fibrosis in vital organs. Its ability to regulate fibroblast activity and influence key signaling pathways makes it a promising target for therapeutic strategies aiming at combating fibrosis. Ongoing research into the regulation of PDGF-C expression and the development of PDGF-C/PDGFR inhibitors holds the potential to offer new insights and approaches for the diagnosis, treatment, and prevention of fibrotic diseases. Ultimately, these efforts may lead to the development of more effective and targeted therapies that can mitigate the impact of fibrosis and improve patient outcomes.
8.Intelligent handheld ultrasound improving the ability of non-expert general practitioners in carotid examinations for community populations: a prospective and parallel controlled trial
Pei SUN ; Hong HAN ; Yi-Kang SUN ; Xi WANG ; Xiao-Chuan LIU ; Bo-Yang ZHOU ; Li-Fan WANG ; Ya-Qin ZHANG ; Zhi-Gang PAN ; Bei-Jian HUANG ; Hui-Xiong XU ; Chong-Ke ZHAO
Ultrasonography 2025;44(2):112-123
Purpose:
The aim of this study was to investigate the feasibility of an intelligent handheld ultrasound (US) device for assisting non-expert general practitioners (GPs) in detecting carotid plaques (CPs) in community populations.
Methods:
This prospective parallel controlled trial recruited 111 consecutive community residents. All of them underwent examinations by non-expert GPs and specialist doctors using handheld US devices (setting A, setting B, and setting C). The results of setting C with specialist doctors were considered the gold standard. Carotid intima-media thickness (CIMT) and the features of CPs were measured and recorded. The diagnostic performance of GPs in distinguishing CPs was evaluated using a receiver operating characteristic curve. Inter-observer agreement was compared using the intragroup correlation coefficient (ICC). Questionnaires were completed to evaluate clinical benefits.
Results:
Among the 111 community residents, 80, 96, and 112 CPs were detected in settings A, B, and C, respectively. Setting B exhibited better diagnostic performance than setting A for detecting CPs (area under the curve, 0.856 vs. 0.749; P<0.01). Setting B had better consistency with setting C than setting A in CIMT measurement and the assessment of CPs (ICC, 0.731 to 0.923). Moreover, measurements in setting B required less time than the other two settings (44.59 seconds vs. 108.87 seconds vs. 126.13 seconds, both P<0.01).
Conclusion
Using an intelligent handheld US device, GPs can perform CP screening and achieve a diagnostic capability comparable to that of specialist doctors.
9.Isorhamnetin Alleviates Inflammation-Induced Crosstalk between Kynurenine Pathway and Gut Microbiota in Depressed Mice
Mengjie XU ; Wei HE ; Ke YAN ; Xinru GAO ; Jun LI ; Dongyue XU ; Jiao XIAO ; Tingxu YAN
Biomolecules & Therapeutics 2025;33(2):297-310
Depression is a widespread psychiatric disorder with complex pathogenesis and unsatisfactory therapeutic effects. As a native flavonoid, Isorhamnetin (ISO) has been deemed to exert neuroprotective effects by antioxidation and regulation of immunity. However, no reports of anti-depressed effect of ISO have yet been found. The present study was conducted to clarify the mechanism basis of anti-depressed effect of ISO utilizing behavioral, biochemical, molecular approaches in vitro and in vivo and bio-informatics analysis. The effects of ISO on depressed mice was investigated through the SPT and FST, and the lesions were examined by H&E staining. Besides, the inflammatory factor and indicator in kynurenine pathway were assessed through detection kits, and the microbiota were checked by 16sRNA. Molecular docking study was performed to investigate the target of ISO. Additionally, Western blot was used to test the activation of PI3K/AKT signaling pathway. The results indicated that ISO could enhance the sugar water preference of mice in SPT and reduce immobility time in FST. Further more, ISO suppressed peripheral and central inflammation, regulated the changes in kynurenine pathway and gut microbiota, inhibited activation of PI3K/AKT pathway, and presented good binding patterns with target proteins on PI3K/AKT signaling pathway. Collectively, these findings demonstrate that ISO alleviated depression-like behaviour by normalizing inflammation-induced dysregulation of the crosstalk between KP and gut microbiota disorder through regulated PI3K/AKT/NF-κB pathway.
10.Isorhamnetin Alleviates Inflammation-Induced Crosstalk between Kynurenine Pathway and Gut Microbiota in Depressed Mice
Mengjie XU ; Wei HE ; Ke YAN ; Xinru GAO ; Jun LI ; Dongyue XU ; Jiao XIAO ; Tingxu YAN
Biomolecules & Therapeutics 2025;33(2):297-310
Depression is a widespread psychiatric disorder with complex pathogenesis and unsatisfactory therapeutic effects. As a native flavonoid, Isorhamnetin (ISO) has been deemed to exert neuroprotective effects by antioxidation and regulation of immunity. However, no reports of anti-depressed effect of ISO have yet been found. The present study was conducted to clarify the mechanism basis of anti-depressed effect of ISO utilizing behavioral, biochemical, molecular approaches in vitro and in vivo and bio-informatics analysis. The effects of ISO on depressed mice was investigated through the SPT and FST, and the lesions were examined by H&E staining. Besides, the inflammatory factor and indicator in kynurenine pathway were assessed through detection kits, and the microbiota were checked by 16sRNA. Molecular docking study was performed to investigate the target of ISO. Additionally, Western blot was used to test the activation of PI3K/AKT signaling pathway. The results indicated that ISO could enhance the sugar water preference of mice in SPT and reduce immobility time in FST. Further more, ISO suppressed peripheral and central inflammation, regulated the changes in kynurenine pathway and gut microbiota, inhibited activation of PI3K/AKT pathway, and presented good binding patterns with target proteins on PI3K/AKT signaling pathway. Collectively, these findings demonstrate that ISO alleviated depression-like behaviour by normalizing inflammation-induced dysregulation of the crosstalk between KP and gut microbiota disorder through regulated PI3K/AKT/NF-κB pathway.

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