1.Xiaozheng Zhitong Paste Alleviates Bone Cancer Pain by Regulating PD-1/PD-L1-induced Osteoclast Formation
Lu SHANG ; Juanxia REN ; Guangda ZHENG ; Linghan MENG ; Lingyun WANG ; Changlin LI ; Dongtao LI ; Yaohua CHEN ; Guiping YANG ; Yanju BAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):72-79
ObjectiveThis study aims to investigate the action mechanism by which Xiaozheng Zhitong paste (XZP) alleviates bone cancer pain (BCP) by regulating programmed death protein 1 (PD-1)/programmed death-ligand 1 (PD-L1) pathway-induced osteoclast formation. MethodsThirty female C57BL/6 mice were randomly allocated into the following groups (n=6 per group): normal control group, model group, low‑dose XZP group (31.5 g·kg-1), high‑dose XZP group (63 g·kg-1), and PD‑1 inhibitor (Niv) group. A bone cancer pain (BCP) model was established by injecting Lewis lung carcinoma cells. Mice in the normal control and model groups received topical application of a blank paste matrix at the wound site. Mice in the low‑ and high‑dose XZP groups were treated with XZP applied topically twice daily. Mice in the Niv group were topically administered the blank paste matrix and additionally received Niv via tail‑vein injection every two days. All interventions were continued for 21 days. During this period, behavioral tests were performed to assess mechanical, motor, and thermal nociceptive sensitivities. After 21 days, all mice were euthanized, and bone tissue from the operated side was collected for sectioning and preservation. Tartrate‑resistant acid phosphatase (TRAP) staining was used to evaluate osteoclast expression in the lesioned bone tissue. Immunohistochemistry was performed to detect the expression of Runt‑related transcription factor 2 (Runx2) in the lesioned bone tissue. Immunofluorescence was employed to assess the expression of PD‑1 and PD‑L1 in the lesioned bone tissue. ResultsCompared with the normal group, the model group showed significantly decreased limb mechanical withdrawal threshold, spontaneous paw flinching, and thermal withdrawal latency (P<0.01), increased number of osteoclasts in the lesioned bone tissue (P<0.01), and reduced expression of Runx2 (P<0.01). Compared with the model group, the BCP mice in the XZP low-dose group, XZP high-dose group, and Niv group exhibited increased limb mechanical withdrawal threshold, movement scores, and thermal withdrawal latency (P<0.01). The XZP low-dose group showed no significant changes in osteoclast number or Runx2 expression, while the XZP high-dose group and Niv group demonstrated significantly reduced osteoclast numbers (P<0.01) and significantly increased Runx2 expression (P<0.01). In the lesioned bone tissue of BCP mice, the XZP low-dose group showed no significant decrease in the percentage of PD-1 expression, but a decrease in the percentage of PD-L1 expression (P<0.05). In contrast, both the XZP high-dose group and the Niv group exhibited significant reductions in the percentages of PD-1 and PD-L1 expression (P<0.01). ConclusionXZP alleviates the pain of mice with BCP by blocking the PD-1/PD-L1 pathway to inhibit osteoclastogenesis.
2.Xiaozheng Zhitong Paste Relieves Bone Cancer Pain in Mice by Alleviating Activation of Microglia in Spinal Cord and Damage to Neurons via Blocking PAR2/NF-κB/NLRP3 Pathway
Guangda ZHENG ; Linghan MENG ; Lu SHANG ; Juanxia REN ; Dongtao LI ; Haixiao LIU ; Lingyun WANG ; Changlin LI ; Yaohua CHEN ; Guiping YANG ; Yanju BAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):91-100
ObjectiveTo investigate the effects and underlying mechanisms of Xiaozheng Zhitong Paste (XZP) on bone cancer pain (BCP). MethodsThirty female BALB/c mice were randomly divided into five groups: a Sham group, a BCP group, a BCP+low-dose XZP group, a BCP+high-dose XZP group, and a BCP+high-dose XZP + protease-activated receptor 2 (PAR2) agonist GB-110 group. BCP mice model was constructed by injecting Lewis lung carcinoma cells into the femoral cavity of the right leg, which was followed by being treated with XZP for 21 d. After 21 d, the mice were sacrificed. Nissl staining was used to evaluate the survival of spinal cord neurons. Immunofluorescence staining was conducted to localize ionized calcium-binding adapter molecule 1 (Iba1) and neuronal nuclear antigen (NeuN) in spinal cord tissue, thereby assessing microglial activation and neuronal survival. Enzyme-linked immunosorbent assay (ELISA) was employed to measure the levels of interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), transforming growth factor-β (TGF-β), interleukin-4 (IL-4), and interleukin-10 (IL-10) in spinal cord tissue. Real-time quantitative polymerase chain reaction (Real-time PCR) was used to detect mRNA expression levels associated with M1/M2 polarization of microglia. Western blot analysis was performed to examine the expression of proteins related to microglial polarization as well as those involved in the PAR2/nuclear factor kappa B (NF-κB)/NOD-like receptor protein 3 (NLRP3) signaling pathway in the spinal cord. ResultsCompared with the Sham group, the spinal cord neurons were damaged, the number of Nissl-positive spinal cord neurons in the spinal cord tissue was significantly reduced (P<0.01), and the rate of NeuN-positive cells was significantly decreased (P<0.01). The spinal cord microglia were activated, the inflammatory level of the spinal cord tissue was enhanced, and Iba1 staining was significantly enhanced (P<0.01). The levels of IL-1β, TNF-α, IL-6, TGF-β, IL-4 and IL-10 were significantly increased (P<0.01). The mRNA expressions of IL-1β, TNF-α and inducible nitric oxide synthase (iNOS) were significantly increased (P<0.01), and the expression of PAR2, NLRP3, ASC and NF-κB p65 proteins in the spinal cord tissue of the BCP mice was significantly enhanced (P<0.01). Compared with the BCP group, high-dose XZP treatment significantly increased the number of Nissl-positive spinal cord neurons in the BCP mice (P<0.01), significantly enhanced the rate of NeuN-positive cells in the spinal cord tissue, and significantly weakened Iba1 staining (P<0.01). In addition, the levels of IL-1β, TNF-α, and IL-6 were significantly decreased, while the levels of TGF-β, IL-4, and IL-10 were significantly increased (P<0.05, P<0.01). The mRNA expression levels of IL-1β, TNF-α, and iNOS were decreased, whereas those of cluster of differentiation 206 (CD206), arginase-1 (Arg-1), and YM1/2 were significantly increased (P<0.05, P<0.01). Low-dose and high-dose XZP treatment significantly decreased the expression of PAR2, NLRP3, ASC, and NF-κB p65 proteins in the spinal cord tissue (P<0.05, P<0.01). These effects could all be significantly eliminated by the PAR2 agonist GB-110. ConclusionXZP can mitigate BCP in mice, which may be achieved through blocking the activated PAR2/NF-κB/NLRP3 pathway.
3.Xiaozheng Zhitong Paste Alleviates Bone Cancer Pain of Mice by Reducing Ferroptosis in Spinal Cord Tissue and Neuronal Damage via Regulating Nrf2/HO-1/GPX4/SLC7A11 Signaling Pathway
Juanxia REN ; Lu SHANG ; Guangda ZHENG ; Linghan MENG ; Lingyun WANG ; Changlin LI ; Dongtao LI ; Yaohua CHEN ; Guiping YANG ; Yanju BAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):101-113
ObjectiveThe paper aims to investigate the action mechanism by which the Xiaozheng Zhitong paste (XZP) relieves bone cancer pain (BCP). MethodsA model of mice with BCP was established by using Lewis tumor cells. The therapeutic effects of XZP, the ferroptosis inhibitor Ferrostatin-1 (Fer-1), and the nuclear factor erythroid 2-related factor 2 (Nrf2) inhibitor Brusatol (Bru) on BCP were examined. Mice were randomly divided into the Sham operation group, BCP group, BCP+XZP-L group, BCP+XZP-H group, BCP+Fer-1 group, and BCP+XZP-H+Bru group, with six mice in each group. Pain behavior tests were conducted on the mice to assess pain levels. Colorimetric assays were employed to measure ferroptosis-related factors in serum and spinal cord tissue including Fe, malondialdehyde (MDA), reactive oxygen species (ROS), and superoxide dismutase (SOD). Immunofluorescence staining was used to assess ROS production in spinal cord tissue. Transmission electron microscopy was used to observe the ultrastructure of mitochondria in lumbar spinal cord tissue. Quantitative real-time polymerase chain reaction (Real-time PCR) was employed to detect mRNA expression of Nrf2, heme oxygenase-1 (HO-1), glutathione peroxidase 4 (GPX4), and solute carrier family 7 member 11 (SLC7A11) in spinal cord neuron tissue. The protein expression of Nrf2, HO-1, GPX4, and SLC7A11 in spinal cord neurons was measured by Western blot. ResultsCompared with the Sham group, mice in the BCP group exhibited significantly reduced limb usage scores, mechanical foot withdrawal thresholds, and thermal foot withdrawal thresholds (P<0.01). Serum and lumbar spinal cord tissue levels of Fe, MDA, and reactive oxygen species (ROS) were significantly elevated (P<0.05), while superoxide dismutase (SOD) levels were significantly decreased (P<0.05). Lumbar spinal cord mitochondrial structural damage was observed, and mRNA and protein expression of Nrf2, HO-1, GPX4, and SLC7A11 were significantly downregulated (P<0.01). Compared with the BCP group, both low- and high-dose XZP groups improved the aforementioned pain behavioral indicators (P<0.05,P<0.01), reduced ferroptosis-related biomarkers including Fe, MDA, and ROS levels (P<0.05), increased SOD levels (P<0.05,P<0.01), alleviated mitochondrial damage, and upregulated Nrf2, HO-1, GPX4, SLC7A11 mRNA and protein expression (P<0.05,P<0.01). The high-dose XZP group exhibited comparable efficacy to Fer-1 in alleviating pain and inhibiting ferroptosis. Following Bru administration, XZP's effects on pain behavioral indicators, regulation of ferroptosis-related markers, mitochondrial structural protection, and activation of the Nrf2/HO-1/GPX4/SLC7A11 pathway were significantly reversed (P<0.05,P<0.01). ConclusionExternal application of XZP alleviates pain symptoms in BCP mice by activating the Nrf2/HO-1/GPX4/SLC7A11 pathway, thereby inhibiting ferroptosis and neuronal damage in spinal cord neurons.
4.Action Mechanism of Huamoyan Granules in Treatment of Knee Osteoarthritis Based on TRPV1/p38 MAPK Pathway
Jin ZHANG ; Lili YANG ; Canwen ZHENG ; Jing KANG ; Yanlei MA ; Yue SHI ; Lei LI ; Hongxu MENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(4):79-89
ObjectiveThis paper aims to observe the protective effect of Huamoyan granules on knee osteoarthritis (KOA) and explore whether its protective effect is oriented toward an anti-inflammatory direction by regulation of macrophage polarization, which can effectively inhibit the progression of pathological inflammatory response, reduce the release of inflammatory pain mediators, and downregulate the protein expression level of transient receptor potential vanilloid 1 (TRPV1), so as to provide experimental evidence for its clinical application and investigate its action mechanism. MethodsAfter adaptive feeding, Sprague-Dawley (SD) rats were randomly divided into six groups: sham group, model group, celecoxib group, and high, medium, and low-dose synovitis granule groups (9.6, 4.8, 2.4 g·kg-1). The administration dose of celecoxib capsules was 20 mg·kg-1. There were 10 rats in the sham group and 12 rats in the model group and each administration group. A KOA animal model was established by means of intra-articular injection of sodium iodoacetate into the knee joint. From the 10th day of the experiment, each administration group was given intragastric administration at a dose of 10 mL·kg-1 for 4 weeks. General conditions of rats in each group were assessed daily. The pressure pain threshold (PPT) to mechanical stimulation and joint diameter were recorded. X-ray examination was performed on the right knee joints of rats for imaging analysis. Enzyme linked immunosorbent assay (ELISA) was performed to detect the tumor necrosis factor-α (TNF-α), serum interleukin-1β (IL-1β), and other pro-inflammatory cytokines in rat serum samples, as well as the expression levels of neurogenic inflammatory mediators such as nerve growth factor (NGF) and calcitonin gene-related peptide (CGRP). Histopathological changes in the knee joint synovial tissues were examined by hematoxylineosin (HE) staining. Safranin O-fast green staining was performed to observe and evaluate the degree of knee cartilage lesions. Western blot was employed to quantitatively analyze TRPV1, p38 mitogen-activated protein kinase (p38 MAPK), and phosphorylated (p)-p38 MAPK in rat knee synovial tissues. Immunofluorescence (IF) was used to measure and assess M1/M2 macrophage polarization. ResultsCompared with those in the sham group, the circumference and joint diameter of the right knee were markedly enlarged in the model group (P<0.01), while PPTs of rats showed a significant reduction (P<0.01). The contents of IL-1β, TNF-α, CGRP, and NGF in rats' serum were significantly elevated (P<0.01), and the synovial Krenn score was increased (P<0.01). The Mankin score of cartilage tissue was increased (P<0.01), and the protein expressions of TRPV1 and p-p38 MAPK/p38 MAPK were significantly upregulated (P<0.01). The experimental intervention significantly reduced the proportion of pro-inflammatory M1 macrophages in the total macrophage population (P<0.01), and the percentage of M2 macrophages was decreased (P<0.01). The M1/M2 macrophage ratio was significantly elevated (P<0.01). Knee joint diameters of all dose groups of Huamoyan granules and the celecoxib group were reduced (P<0.01) compared with those of the model group, and the PPT recovery speeds in the high and medium-dose groups of Huamoyan granules were more obvious (P<0.05). The contents of IL-1β, CGRP, and NGF in the rats' serum in all administration groups were significantly reduced (P<0.05, P<0.01), and the content of TNF-α in rats' serum was significantly reduced (P<0.01). All dose groups of Huamoyan granules demonstrated significant reductions in both synovial Krenn score (P<0.05, P<0.01) and protein expression of TRPV1 and p-p38 MAPK/p38 MAPK in rats' synovial tissues (P<0.01). The percentage of M1 macrophages in the synovial tissues of the celecoxib group and all dose groups of Huamoyan granules was decreased (P<0.01). The percentage of M2 macrophages was increased (P<0.05), and the M1/M2 ratio was decreased (P<0.01). ConclusionHuamoyan granules can alleviate the inflammatory response of KOA, reduce the release of inflammatory pain mediators, and downregulate TRPV1 protein expression by regulating macrophage polarization. Its mechanism may be related to the TRPV1/p38 MAPK signaling pathway, thereby achieving the effect of improving peripheral pain hypersensitivity in KOA.
5.Perioperative immune dynamics and clinical outcomes in patients undergoing on-pump cardiac surgery
Zhiyuan CHENG ; Xinyi LIAO ; Juan WU ; Ping YANG ; Tingting WANG ; Qinjuan WU ; Wentong MENG ; Zongcheng TANG ; Jiayi SUN ; Jia TAN ; Jing LIN ; Dan LUO ; Hao WANG ; Chaonan LIU ; Jiyue XIONG ; Liqin LING ; Jing ZHOU ; Lei DU
Chinese Journal of Blood Transfusion 2026;39(1):31-43
Objective: To characterize perioperative dynamic changes in immune-cell phenotypes and inflammatory cytokines in patients undergoing CPB (cardiopulmonary bypass) cardiac surgery, and to explore their associations with postoperative outcomes. Methods: In this prospective cohort study, 120 adult patients who underwent elective cardiac surgery under CPB at West China Hospital from May 2022 to March 2023 were enrolled. Perioperative immune-cell phenotypes and concentrations of 40 inflammation-related cytokines were measured. The primary outcomes were the sequential organ failure assessment (SOFA) score at 24 h after surgery and ΔSOFA (the peak SOFA score within 48 h after surgery minus the preoperative SOFA score). Secondary outcomes included major adverse cardiovascular events (MACE), acute kidney injury (AKI), respiratory failure, severe liver injury, and infection. Results: The mean age of enrolled patients was 57±10 years. Of these, 52% (62/120) were male and 90% (108/120) underwent valve surgery. During the rewarming to the end of CPB, neutrophil counts rapidly increased (7.39×10
/L vs preoperative 3.07×10
/L, P<0.001), with significant upregulation of CD11b (7.30×10
/L vs preoperative 3.05×10
/L, P<0.001) and CD54 (7.15×10
/L vs preoperative 2.99×10
/L, P<0.001). Lymphocyte counts increased at the end of CPB (1.75×10
/L vs preoperative 1.12×10
/L, P<0.001) but decreased significantly at 24 h after surgery (0.59×10
/L vs preoperative 1.12×10
/L, P<0.001). Plasma analysis showed that multiple pro-inflammatory cytokines increased during CPB and remained elevated up to 24 h after surgery; five chemokines and the anti-inflammatory cytokine IL-10 peaked at the end of CPB. The SOFA score increased from 1 (1, 2) preoperatively to 7 (5, 10) at 24 h after surgery, with a ΔSOFA of 6 (4, 8). Within 30 days after surgery, 48 patients (40.0%) developed AKI, 17 (14.2%) developed infection, 4 (3.3%) developed severe liver injury, 3 (2.5%) developed respiratory failure, and 3 (2.5%) experienced MACE. During the 2-year follow-up, 8 patients (6.7%) experienced MACE and 5 (4.2%) died. Conclusion: Multi-organ dysfunction is common after cardiac surgery under CPB (median ΔSOFA, 6), accompanied by perioperative activation of multiple immune-cell subsets and upregulation of pro-inflammatory, anti-inflammatory, and chemotactic mediators. This study provides data-driven evidence and research clues for further investigation of the associations between CPB-related immune perturbations and postoperative organ dysfunction and clinical outcomes.
6.Effect of dihydroquercetin on refractive development in mice with form deprivation myopia based on NLRP3 inflammasome pathway
Po ZHAO ; Meng MA ; Tengwen YANG ; Lingfei MENG ; Jing LIU ; Xiaoxiao XING ; Huiying HOU
International Eye Science 2026;26(3):391-397
AIM: To explore the effect of dihydroquercetin on visual function in mice with form deprivation myopia based on the NOD-like receptor thermoprotein domain-related protein 3(NLRP3)inflammasome pathway.METHODS: The C57BL/6 mice were randomly divided into control group and form deprivation myopia model group, and the form deprivation myopia model group was constructed by covering the right eye with a translucent eye patch. After successful modeling, the mice in the model group of form deprivation myopia were randomly divided into model group, low-, medium- and high-dose dihydroquercetin groups, and high-dose dihydroquercetin + NLRP3 agonist group. The diopter and axial length of mice in each group were detected. The kit was used to detect the levels of superoxide dismutase(SOD)and malondialdehyde(MDA)in retinal tissue. RT-qPCR was used to detect the mRNA expressions of NLRP3, apoptosis-associated spot-like protein(ASC), Caspase-1, IL-1β and IL-18 in retinal tissues. Western blot was used to detect the expression of NLRP3, ASC, cleaved Caspase-1, IL-1β and IL-18 proteins in retinal tissues. TUNEL staining was used to detect apoptosis in retinal tissue.RESULTS: Compared with the control group, the diopter of the mice in the model group decreased, and axial length increased, and the SOD decreased whereas MDA, NLRP3, ASC, Caspase-1, IL-1β, IL-18 increased, and the rate of apoptosis in retinal tissue increased(all P<0.05). Compared with the model group, the diopter of mice in the low-, medium- and high-dose dihydroquercetin groups increased, axial length shortened, the SOD increased, whereas MDA, NLRP3, ASC, Caspase-1, IL-1β, IL-18 decreased, and the rate of apoptosis in retinal tissue decreased(all P<0.05). Compared with the high-dose dihydroquercetin group, the high-dose dihydroquercetin+NLRP3 agonist group had reduced diopter, increased axial length, decreased SOD levels, elevated MDA, NLRP3, ASC, Caspase-1, IL-1β, and IL-18 levels, as well as increased apoptosis rate in retinal tissue(all P<0.05).CONCLUSION: Dihydroquercetin can improve visual function in mice with form deprivation myopia by inhibiting pyroptosis and oxidative stress responses, which may be related to the suppression of NLRP3 inflammasome. NLRP3 agonists can partially mitigate the effects of high-dose dihydroquercetin on form deprivation myopia in mice.
7.Establishment and Preliminary Analysis of an AG6 Mouse Encephalopathy Model Induced by Vaccinia Virus Tiantan Strain Infection
Lin YANG ; Meng JIN ; Hanqing WU ; Shun LI ; Xiaohui ZHOU
Laboratory Animal and Comparative Medicine 2026;46(1):3-10
ObjectiveA mouse model of vaccinia virus Tiantan strain (VTT)-induced encephalopathy was developed using AG6 mice. MethodsVTT was amplified by infecting Vero cells at a multiplicity of infection (MOI) of 0.01, followed by concentration and titration. After 72 h of incubation, virus-containing cells were collected and subjected to concentration. The concentrated viral suspension was serially diluted (10-fold dilutions) and added to 6-well plates containing confluent Vero cell monolayers for plaque assay. The number of plaques formed in each well was counted, and the virus titer was calculated based on the dilution factor. Fourteen 5-6-week-old AG6 mice (half male and half female, housed separately by sex) were randomly divided into a control group (n=3, PBS), a low-dose group (n=6, 1×10⁵ PFU), and a high-dose group (n=5, 5×10⁵ PFU). The mice were anesthetized by isoflurane inhalation and then infected via intranasal instillation. The mental state of the mice in each group was observed daily, and the body weight and mortality were recorded. On day 13 post-infection, 2% Evans Blue (4 mL/kg body weight) was administered via tail vein injection to assess blood-brain barrier (BBB) disruption. Subsequently, brain tissue samples were collected for immunofluorescence analysis to evaluate the activation of astrocytes and microglia. ResultsThe titer of purified VTT was 1×10⁷ PFU/mL. Compared with the control group, mice in the low-dose group showed no significant change in body weight, and no lethality was observed. In contrast, mice in the high-dose group exhibited significant weight loss starting on day 5 post-infection (P<0.05), accompanied by lethality. On day 13 post-infection, no Evans Blue extravasation was detected in the brain tissues of the low-dose group, while the olfactory bulb region of the high-dose group displayed distinct blue staining, indicating disruption of the BBB. Immunofluorescence analysis revealed no significant proliferation of astrocytes and microglia in the olfactory bulb region of the low-dose group on day 13 post-infection. In contrast, marked activation of glial cells was observable in the high-dose group. ConclusionAn animal model of VTT-induced encephalopathy in AG6 mice is successfully established, characterized by BBB disruption and reactive gliosis specifically localized to the olfactory bulb region, manifested as astrocytic and microglial proliferation.
8.Protective effect and mechanism of chikusetsu saponin Ⅳa on the kidney in diabetic nephropathy rats
Yongli WANG ; Hai CHEN ; Xiaofang TIAN ; Xuechun WANG ; Liying YUAN ; Dan LIU ; Zhongfa LI ; Yanfang MENG ; Xiuyong YANG
China Pharmacy 2026;37(7):908-913
OBJECTIVE To study the protective effect and potential mechanism of chikusetsu saponin Ⅳ a (chsⅣ) on renal function in diabetic nephropathy (DN) model rats. METHODS DN rat model was established by high-fat diet combined with streptozotocin injection. Thirty-six model rats were randomly divided into model group (i.g. administration of normal saline, high-fat diet), chsⅣ low-dose and high-dose groups (i.g. administration of 90, 180 mg/kg chsⅣ, high-fat diet), with 12 rats in each group. Additionally, 10 normal rats were set as the control group (i.g. administration of normal saline, regular diet). From the 5th to the 12th week after streptozotocin injection, they were given intragastric administration of relevant drug or normal saline, once a day. After the last medication, the levels of fasting blood glucose, fasting insulin, blood urea nitrogen, serum creatinine and urine protein as well as the levels of reduced glutathione (GSH), superoxide dismutase (SOD) and malondialdehyde (MDA) in renal tissues were measured. Additionally, the insulin resistance index was calculated. Hematoxylin-eosin, periodic acid-Schiff, and Masson staining techniques were employed to examine the histopathological alterations in the renal tissue. The expressions of Notch signaling pathway-related proteins in renal tissue were detected by immunohistochemical staining and Western blot methods. RESULTS Compared with model group, the histomorphological of renal tissues in the chsⅣ low- and high-dose groups were significantly improved, with significant decreases in renal histological scores, mesangial expansion index, and glomerulosclerosis scores ( P <0.05); the levels of fasting blood glucose, fasting insulin, blood urea nitrogen, serum creatinine, urine protein and homeostasis model assessment for insulin resistance, as well as MDA content, the expression levels of Notch1, Notch intracellular domain, hairy and enhancer of Split 1 and Delta-like protein 1 in renal tissue were all significantly decreased ( P <0.05). The levels of GSH and SOD in renal tissue were significantly elevated ( P <0.05). Moreover, the improvement in these indicators was significantly more pronounced in the chsⅣ high-dose group compared to the chsⅣ low-dose group ( P <0.05). CONCLUSIONS ChsⅣ can ameliorate renal pathological damage and functional impairment in DN rats. Its underlying mechanisms include restoration of glucose homeostasis and insulin sensitivity, attenuation of renal oxidative stress, and suppression of aberrant Notch signaling pathway activation.
9.Effects of coal mine dust on lung function in rats
LIU Yang ; LI Meng ; LU Liyuan ; WANG Ru ; YANG He ; ZHANG Huifang
Journal of Preventive Medicine 2025;37(1):96-101
Objective:
To explore the impacts of coal mine dust on lung function in rats, so as to provide the basis for the early prevention and treatment of coal worker's pneumoconiosis.
Methods:
Seventy-two SPF-grade 8-week-old male Sprague-Dawley rats were randomly divided into the coal dust group, the coal-silica dust group, the silica dust group and the control group. The rats in the first three groups of rats were administered 1 mL corresponding dust suspension into the lungs using non-exposure tracheal instillation, while the rats in the control group were administered 1 mL normal saline. Respiratory rate (f), forced vital capacity (FVC), peak expiratory flow (PEF) and dynamic pulmonary compliance (Cdyn) were measured at 1, 3 and 6 months after dust exposure. Lung tissues were collected to measure reactive oxygen species (ROS) and adenosine triphosphate (ATP) levels using corresponding ELISA kits and ATP assay kits, respectively. The relative mRNA expressions of peroxisome proliferators-activated receptor gamma coactivator 1-alpha (PGC-1α) and mitochondrial transcription factor A (TFAM) were detected using real-time fluorescent quantitative polymerase chain reaction assay. The relative protein expressions of PGC-1α and TFAM were detected using Western blotting.
Results:
There was no interaction between dust type and exposure duration on f (P>0.05), but there were interactions on FVC, PEF and Cdyn (all P<0.05). Compared with the control group at 6 months after dust exposure, the f of the rats in the silica dust group were increased, while the FVC and PEF of the rats in the coal-silica dust and silica dust groups were decreased, and Cdyn of the rats in the coal dust, coal-silica dust and silica dust groups were decreased (all P<0.05). There were interactions between dust type and exposure duration on ROS and ATP levels, the relative mRNA and protein expressions of PGC-1α and TFAM (all P<0.05). Compared with the control group at 3 and 6 months after dust exposure, the ROS levels in the rats in the coal dust, coal-silica dust and silica dust groups were increased, while the ATP levels, the relative mRNA and protein expressions of PGC-1α and TFAM were decreased (all P<0.05).
Conclusion
The lung function impairment in rats caused by different types of coal mine dust is related to PGC-1α-mediated mitochondrial biogenesis dysfunction, which leads to increased ROS levels, decreased ATP and TFAM levels.
10.Structure, content and data standardization of rehabilitation medical records
Yaru YANG ; Zhuoying QIU ; Di CHEN ; Zhongyan WANG ; Meng ZHANG ; Shiyong WU ; Yaoguang ZHANG ; Xiaoxie LIU ; Yanyan YANG ; Bin ZENG ; Mouwang ZHOU ; Yuxiao XIE ; Guangxu XU ; Jiejiao ZHENG ; Mingsheng ZHANG ; Xiangming YE ; Jian YANG ; Na AN ; Yuanjun DONG ; Xiaojia XIN ; Xiangxia REN ; Ye LIU ; Yifan TIAN
Chinese Journal of Rehabilitation Theory and Practice 2025;31(1):21-32
ObjectiveTo elucidate the critical role of rehabilitation medical records (including electronic records) in rehabilitation medicine's clinical practice and management, comprehensively analyzed the structure, core content and data standards of rehabilitation medical records, to develop a standardized medical record data architecture and core dataset suitable for rehabilitation medicine and to explore the application of rehabilitation data in performance evaluation and payment. MethodsBased on the regulatory documents Basic Specifications for Medical Record Writing and Basic Specifications for Electronic Medical Records (Trial) issued by National Health Commission of China, and referencing the World Health Organization (WHO) Family of International Classifications (WHO-FICs) classifications, International Classification of Diseases (ICD-10/ICD-11), International Classification of Functioning, Disability and Health (ICF), and International Classification of Health Interventions (ICHI Beta-3), this study constructed the data architecture, core content and data standards for rehabilitation medical records. Furthermore, it explored the application of rehabilitation record summary sheets (home page) data in rehabilitation medical statistics and payment methods, including Diagnosis-related Groups (DRG), Diagnosis-Intervention Packet (DIP) and Case Mix Index. ResultsThis study proposed a systematic standard framework for rehabilitation medical records, covering key components such as patient demographics, rehabilitation diagnosis, functional assessment, rehabilitation treatment prescriptions, progress evaluations and discharge summaries. The research analyzed the systematic application methods and data standards of ICD-10/ICD-11, ICF and ICHI Beta-3 in the fields of medical record terminology, coding and assessment. Constructing a standardized data structure and data standards for rehabilitation medical records can significantly improve the quality of data reporting based on the medical record summary sheet, thereby enhancing the quality control of rehabilitation services, effectively supporting the optimization of rehabilitation medical insurance payment mechanisms, and contributing to the establishment of rehabilitation medical performance evaluation and payment based on DRG and DIP. ConclusionStructured rehabilitation records and data standardization are crucial tools for quality control in rehabilitation. Systematically applying the three reference classifications of the WHO-FICs, and aligning with national medical record and electronic health record specifications, facilitate the development of a standardized rehabilitation record architecture and core dataset. Standardizing rehabilitation care pathways based on the ICF methodology, and developing ICF- and ICD-11-based rehabilitation assessment tools, auxiliary diagnostic and therapeutic systems, and supporting terminology and coding systems, can effectively enhance the quality of rehabilitation records and enable interoperability and sharing of rehabilitation data with other medical data, ultimately improving the quality and safety of rehabilitation services.


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