1.From Bedside to Molecular Diagnosis-Multidisciplinary Treatment of a Rare Case of Autoinflammatory Disease Presenting with Skin Induration and Limb Weakness
Hanhui FU ; Wenjun WANG ; Yaping LIU ; Hui YOU ; Tao WANG ; Wen ZHANG ; Xuejun ZENG ; Liying CUI ; Huijuan ZHU ; Xiuli ZHAO ; Min SHEN ; Yicheng ZHU
JOURNAL OF RARE DISEASES 2026;5(2):207-213
This article reports a rare case of autoinflammatory disease presenting initially with skin induration and swelling after trauma as the initial manifestation, followed by progressive limb weakness. The patient was a middle-aged female who developed skin induration and swelling after trauma, which gradually progressed to limb weakness, dysarthria and bilateral facial paralysis, accompanied by livedo reticularis of the lower extremities, diffuse skin induration of the limbs, and beaded subcutaneous nodules in the right upper limb. The patient had a susceptibility to infection since childhood and a history of chronic livedo reticularis. Skin pathological examination revealed panniculitis. A comprehensive etiological screening for special infections and autoimmune diseases was completed with an unremarkable results, and whole-exome sequencing showed no abnormal findings. Following a multidisciplinary discussion combined with RNA sequencing results, the patient was diagnosed with an autoinflammatory disease, with a suspected type Ⅰ interferonopathy. Treatment with tofacitinib resulted in gradual improvement of clinical symptoms. This case highlights the importance of detailed medical history collection, systematic physical examination and multidisciplinary collaborative diagnosis and treatment, and underscores the pivotal role of molecular diagnosis in the confirmation of rare diseases. It can provide a reference for the clinical diagnosis and management of similar rare cases.
2.Construction and Evaluation of Mouse Model of Qi Deficiency and Phlegm Dampness Syndrome
Qichun ZHOU ; Gangxing ZHU ; Yongchun ZOU ; Baoyi LAN ; Zhanyu CUI ; Xi WANG ; Mengfei XU ; Qing TANG ; Sumei WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(4):138-146
ObjectiveQi deficiency and phlegm dampness syndrome is a common type of clinical traditional Chinese medicine(TCM) syndrome. However, there is no standard, scientific, and accurate report on the construction of animal models of Qi deficiency and phlegm dampness syndrome. This study aims to construct a mouse model of Qi deficiency and phlegm dampness syndrome by using a multi-factor composite modeling method and to evaluate the model. MethodsTwenty-one C57BL/6 mice were randomly divided into three groups with seven mice in each group, which were the normal group, model group, and Shenling Baizhusan (SLBZ) group. The control group was fed with ordinary diet and kept in a normal environment. The model group and SLBZ group were fed with a high-fat diet in a high-humidity environment. Swimming with heavy weights until exhaustion and gavage with cold water or lard were used to establish the mouse model of Qi deficiency and phlegm dampness syndrome. In order to test the syndrome by prescription, mice in the SLBZ group were treated with SLBZ for 14 days after model construction. The exhaustive swimming time, body weight, serum lipid levels, tongue changes, "Qi deficiency and phlegm dampness" assessment scale score, and cecal index of mice in each group were measured. The feces of each group of mice were sent for metagenomics and metabolome sequencing, and the changes in intestinal flora and metabolites were analyzed. ResultsAfter the modeling of Qi deficiency and phlegm dampness syndrome, the exhaustive swimming time of mice was obviously shortened (P<0.01). The serum total cholesterol, low density lipoprotein cholesterol, and non-high density lipoprotein cholesterol of mice were significantly increased (all P<0.01). The tongue of mice was significantly different from that of the normal group, and the score of the assessment scale was significantly higher than that of the control group (P<0.01). Cecal index decreased significantly (P<0.01). The serum lipid level, tongue image, assessment scale score, and cecal index were reversed in the SLBZ group. Metagenomic and metabolome sequencing results showed that intestinal flora and fecal metabolites were significantly changed in mice with Qi deficiency and phlegm dampness syndrome. Akkermansia_muciniphila, Faecalibaculum_rodentium, Eubacterium_plexicaudatum, Eubacterium sp 14_2, Candida glabrata, Romboutsia_ilealis, Turicibacter sp TS3, and other bacteria had significant changes, and the expressions of intestinal metabolites such as chenodeoxycholic acid, choline, L-phenylalanine betaine, and 2-phenylbutyric acid were significantly changed. Related metabolic pathways such as linoleic acid metabolism, primary bile acid biosynthesis, lysine degradation, arginine biosynthesis, and alpha-linolenic acid metabolism were affected. ConclusionThe Qi deficiency and phlegm dampness model of mice can be constructed by the multi-factor composite modeling method of high-fat diet feeding, high-humidity environment feeding, exhaustive swimming with heavy weight, and intragastric administration with cold water or lard. The blood lipid level, tongue change, score of "Qi deficiency and phlegm dampness assessment scale", cecal index, and changes in related intestinal flora and metabolites of mice can be used as key indicators for model evaluation.
3.Effectiveness of electron linear accelerator in penetrating radiation sterilization of postal packages
Debang BAO ; Aijun CUI ; Guobao WANG ; Zhibin ZHU
Chinese Journal of Radiological Health 2026;35(1):91-96
Objective To investigate the microbial disinfection and sterilization effectiveness of an electron linear accelerator on the surface and interior of postal packages, and to design and conduct a penetrating radiation disinfection and sterilization experiment. Methods This experiment selected Bacillus pumilus E601 (ATCC 27142) as the indicator microbial strain for radiation. An experimental model of postal package was subjected to penetrating radiation with different dose gradients using high-energy electron beams generated by an S-band 10 MeV electron linear accelerator. The disinfection and sterilization effectiveness was assessed by culturing and counting B. pumilus after high-energy electron beam radiation treatment. A control group was established to analyze the influence of actual absorbed doses at different gradients on the disinfection and sterilization effectiveness of the electron linear accelerator. Results The actual absorbed doses of high-energy electron-beam radiation required to achieve 1-, 3-, and 6-log reductions of B. pumilus were 1.63, 5.07, and 10.22 kGy, respectively. Complete inactivation was achieved at an absorbed dose of 10.92 kGy, which met the processing requirements specified in the technical standard for ionizing-radiation disinfection. Conclusion The experimental data indicated that the actual absorbed dose for B. pumilus is linearly positively correlated with the log reduction of bacterial colonies killed by electron beam radiation. For disinfection and sterilization requirements in different scenarios, the required actual absorbed dose can be achieved by dynamically adjusting the operating speed of the under-beam transmission system.
4.Mechanism of Wendan Ningxin Granules in Modulating Diastolic Calcium Leakage-related Proteins to Improve Inflammation-associated Atrial Fibrillation Susceptibility
Biyue SHANG ; Tingting ZHU ; Shunxin LYU ; Zhiwei ZHANG ; Yufei WANG ; Xiangning CUI ; Yingdong LU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(11):133-143
ObjectiveTo investigate the protective effect and mechanism of Wendan Ningxin granules (WNG) on susceptibility to atrial fibrillation (AF) in mice with inflammatory injury. Methods100 C57BL/6 mice were divided into a blank control group, a model group, a low-dose WNG group (2.34 g·kg-1·d-1), a high-dose WNG group (4.68 g·kg-1·d-1), and an amiodarone positive control group (0.091 g·kg-1·d-1), with 20 mice in each group. Except for the blank control group, mice in other groups received intraperitoneal injections of lipopolysaccharide (LPS) to establish an inflammatory injury model. Treatment groups received continuous intragastric administration of their respective interventions for four weeks. During the fourth week, the treatment groups received LPS injections concurrently with their treatments. The blank control and model groups received distilled water (10 mL·kg-1·d-1) by gavage, with a gavage volume of 10 mL·kg-1 for all groups, once daily. Hematoxylin-eosin (HE) staining and Sirius red staining were used to observe atrial tissue morphology and fibrosis degree. Immunohistochemistry was used to assess the expression of α-smooth muscle actin (α-SMA) in mouse atrial tissue. Electrophysiological detection was performed using a multi-channel electrophysiology mapping system to measure AF inducibility, AF duration, and atrial effective refractory period (AERP). High-resolution optical mapping was used to measure action potential duration (APD) dispersion, conduction heterogeneity index, and calcium transient (CaT) dispersion. Real-time quantitative polymerase chain reaction (Real-time PCR) was used to detect mRNA expression of proteins related to diastolic calcium leakage in mouse atria: Ca2+/calmodulin-dependent protein kinase Ⅱ(CaMKⅡ), ryanodine receptor 2(RyR2), sarco/endoplasmic reticulum Ca²⁺-ATPase (SERCA), and sodium-calcium exchanger (NCX). Western blot analysis was performed to detect the expression of CaMKII, RyR2, SERCA, and NCX proteins in myocardial tissue from each group. Enzyme-linked immunosorbent assay (ELISA) was used to measure serum levels of inflammatory factors interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α). ResultsPathological staining results showed that compared with the blank control group, the model group exhibited disrupted atrial tissue structure, inflammatory cell infiltration, atrial fibrosis, and diffuse infiltration of numerous brown α-SMA positive cells in the atrial interstitium (P<0.01). AF could be induced by electrical stimulation with a longer duration. AERP was shortened, while APD dispersion, conduction heterogeneity index, and CaT dispersion were increased (P<0.01). The expression of proteins associated with diastolic calcium leakage, including CaMKⅡ, RyR2, and NCX1, showed elevated mRNA and protein levels, whereas SERCA2a mRNA and protein expression decreased (P<0.05). Serum levels of inflammatory factors IL-1β and TNF-α were elevated (P<0.01). Compared with the model group, intervention with WNG alleviated cardiac structural damage, reduced inflammatory cell infiltration, improved atrial fibrosis, and reduced the diffuse infiltration of α-SMA positive cells (P<0.01). AF inducibility and AF duration upon electrical stimulation were significantly reduced (P<0.05), AERP was prolonged (P<0.05), mRNA and protein expression of CaMKⅡ, RyR2, and NCX1-proteins associated with diastolic calcium leakage-were reduced, whilst mRNA and protein expression of SERCA2a increased (P<0.05), and serum levels of IL-1β and TNF-α were decreased (P<0.01). ConclusionBoth low‑ and high‑dose WNG can effectively reduce susceptibility to inflammation-related AF. The mechanism by which WNG reduce AF susceptibility may be related to regulating proteins involved in sarcoplasmic reticulum diastolic calcium leak, thereby improving cardiac electrical remodeling, and alleviating inflammation-induced myocardial fibrosis, thus improving cardiac structural remodeling.
5.Comparative Analysis of Clinical Efficacy of Traditional Chinese Medicine Manipulative Reduction Combined with Small Splint Fixation Versus Surgical Treatment for Type A Distal Radius Fracture
Yang SHAO ; Zihan WANG ; Jianwei WANG ; Guoda DAI ; Hengyan CUI ; Zhen HUA ; Tingchen ZHU ; Shaoshuo LI ; Jun MAO ; Fenghua CHEN ; Shuai TAO ; Mao WU
Journal of Traditional Chinese Medicine 2026;67(10):1078-1085
ObjectiveTo compare the clinical efficacy of traditional Chinese medicine (TCM) manipulative reduction combined with small splint fixation versus surgical treatment for type A distal radius fracture (DRF) and to explore the factors influencing the choice of treatment. MethodsA multi-center retrospective study was conducted, collecting data from 1237 type A DRF patients treated in 11 hospitals in Jiangsu province from September, 2023 to April, 2025. Among them, 851 patients in the TCM group received manipulative reduction combined with small splint fixation, and 386 patients in the surgical group underwent open reduction and internal fixation. Visual analog scale (VAS) scores for pain and radiographic indicators including palmar tilt, ulnar deviation, and radial height were compared before treatment, 5-7 days after treatment, and 4-6 weeks after treatment. The wrist joint function scores including Dienst and Gartland-Werley scores at 12 weeks after treatment were recorded. Subgroup analysis was conducted for the excellent rate of Dienst and Gartland-Werley scores, stratified by age (<50, 50-59, 60-69, ≥70 years old) and AO subtypes (A1, A2, A3). A multivariate logistic regression model was used to identify independent factors influencing treatment choice. ResultsOn 5-7 days after treatment, the surgical group had lower VAS scores than the TCM group, while 4-6 weeks after treatment, the TCM group showed lower VAS scores than the surgical group (P<0.01). In terms of radiographic indicators, except for the palmar tilt before treatment being higher in the surgical group than in the TCM group (P<0.01), there were no significant differences in palmar tilt, ulnar deviation, and radial height at other timepoints (P>0.05). Twelve weeks after treatment, the surgical group had a higher average Gartland-Werley score and the excellent rate than the TCM group (P<0.01). Subgroup analysis showed that in patients with A2 type DRF aged 50-59 and 60-69 years old, the excellent rates of Dienst and Gartland-Werley scores in the TCM group were higher than those in the surgical group (P<0.05). Multivariate logistic regression analysis revealed that age, palmar tilt, ulnar deviation, and the degree of swelling on the affected side were independent factors influencing the choice of treatment (P<0.05). ConclusionBoth TCM manipulative reduction combined with small splint fixation and surgical treatment for type A DRF can achieve good therapeutic effects. TCM manipulative reduction combined with small splint fixation has certain advantages in medium- and long-term pain relief, especially in elderly patients, where wrist joint function recovery is more stable. Age, palmar tilt, ulnar deviation, and swelling degree are the main factors influencing the treatment choice.
6.Clinical Efficacy and Radiographic Outcomes of Manipulative Reduction Combined with Small Splint Fixation for Distal Radius Fractures:A Retrospective Multicenter Study with Propensity Score Matching
Mao WU ; Guoda DAI ; Yang SHAO ; Shaoshuo LI ; Zhen HUA ; Hengyan CUI ; Tingchen ZHU ; Dipeng LI ; Jintao LIU ; Ming ZHOU ; Peimin WANG ; Liyong ZHANG ; Jianwei WANG
Journal of Traditional Chinese Medicine 2026;67(10):1086-1092
ObjectiveTo observe the clinical efficacy and radiographic outcomes of manipulative reduction combined with small splint fixation in the treatment of distal radius fractures. MethodsThe clinical data of 1051 patients with distal radius fractures were retrospectively collected from five hospitals included in the Jiangsu Diagnosis and Treatment Data Platform for Traditional Chinese Medicine(TCM) Dominant Diseases. Propensity score matching at a 1∶4 ratio was applied, resulting in 580 cases selected for final analysis, which comprised 448 patients in the TCM group(manipulative reduction plus small splint fixation) and 132 in the surgical treatment group(open reduction and internal fixation). Each group was further stratified into type A, B, and C subgroups based on AO fracture classification. Radiographic indicators including palmar tilt, radial inclination, and radial height were compared between groups before treatment and 1 day, 1 week, and 4-6 weeks after treatment, and pain visual analog scale(VAS) scores before treatment and 1 week and 4-6 weeks after treatment were also compared. Wrist joint function was assessed 12 weeks after treatment, using the Dienst wrist function score and the Gartland and Werley(G-W) wrist function score. Additionally, the radiographic indicators at different timepoints and the 12-week wrist function levels were compared between groups across different fracture types. ResultsNo statistically significant difference was observed in radiographic indicators and VAS scores at all timepoints before and after treatment, as well as wrist joint function grades assessed by the Dienst score and the G-W score at 12 weeks after treatment (P>0.05). Compared to those before treatment, both groups showed increased palmar tilt, radial inclination, and radial height 1 week and 4-6 weeks after treatment, and decreased VAS scores (P<0.05). Compared to those 1 week after treatment, both groups showed a decrease in palmar tilt, an increase in radial inclination and radial height, and a reduction in VAS score 4-6 weeks after treatment(P<0.05). In type A and B subgroups, the surgical treatment group had a higher radial inclination than the TCM group 4-6 weeks after treatment, while in the type C subgroup, a higher radial height was shown in the surgical treatment group than in the TCM group 4-6 weeks after treatment(P<0.05). In type C subgroup, there was significant difference between groups in the wrist joint function by G-W scores 12 weeks after treatment(P<0.05). ConclusionManipulative reduction combined with small splint fixation can maintain fracture alignment and alleviate pain in treating distal radius fractures, which achieves therapeutic outcomes comparable to surgical treatment. It is particularly suitable for type A and B fractures and can be considered an effective treatment option for distal radius fractures.
7.Construction and Clinical Validation of a Deep Learning-Based Automatic Measurement Model for Palmar Tilt and Radial Inclination in Distal Radius Fractures
Guoda DAI ; Jianwei WANG ; Mao WU ; Bin KANG ; Yang SHAO ; Hengyan CUI ; Shaoshuo LI ; Tingchen ZHU ; Zhen HUA ; Zhongming SHEN ; Jintao LIU ; Ming ZHOU
Journal of Traditional Chinese Medicine 2026;67(10):1093-1100
ObjectiveTo construct an automatic measurement model for palmar tilt and radial inclination suitable for traditional Chinese medicine (TCM) clinical scenarios, and to validate its accuracy and efficiency in TCM manipulative reduction settings. MethodsData on anteroposterior (AP) and lateral X-rays of distal radius fractures were collected from patients admitted to 18 TCM/ integrated TCM and western medicine hospitals in Jiangsu province between September 1st, 2023, and September 1st, 2024, via the Jiangsu Diagnosis and Treatment Big Data Platform for TCM Dominant Diseases. A medical image segmentation framework based on multi-scale feature fusion and edge-awareness was employed, combined with anatomical knowledge specific to TCM orthopedics, to optimize the feature extraction strategy of an artificial intelligence (AI) model. This framework enabled automatic segmentation of fracture regions and measurement of distal radius palmar tilt and radial inclination. The accuracy of the AI model in measuring radial inclination and volar tilt was validated, and the measurement time and average time gain rate of the AI model were compared to those of manual measurement. ResultsA total of 15,444 AP and lateral X-ray images of distal radius fractures were collected, and were divided into a training set (11,144 images, 5066 AP and 6078 lateral), a validation set (3700 images, 1840 AP and 1860 lateral), and an independent test set (600 images, 300 AP and 300 lateral) after preprocessing. In the measurement of 300 AP X-rays in the independent test set for radial inclination, when the degree error between AI measurement and manual measurement was <3° and <5°, AI measurement accuracy was 83% and 93%, respectively. In 300 lateral X-rays in the test set for palmar tilt, when AI measurements had an error of <3° and <5° compared to manual measurements, corresponding accuracy rate was 78% and 90%, respectively. For 50 X-ray images, AI measurement time was (1.37±0.05) min for radial inclination while manual measurement time was (22.57±2.52) min (P<0.001); in terms of palmar tilt, the AI measurement time was (1.33±0.14) min, shorter than (23.70±2.80) min for manual measurement time (P<0.001). Average time gain rates for manual and AI measurements were 93.93% and 94.39% respectively. ConclusionAn automatic measurement model for palmar tilt and radial inclination in distal radius fractures has been established, enabling more accurate and efficient assessment as well as providing a tool to support the quantitative evaluation of the efficacy of TCM manipulative reduction and large-sample clinical research.
8.Effect of Modified Baoyuantang Combined with Linggui Zhugantang on Myocardial Mitochondrial Damage and NLRP3/GSDMD-mediated Pyroptosis in Rat Model of Post-myocardial Infarction Heart Failure
Tingting ZHU ; Lifei LYU ; Biyue SHANG ; Zhiwei ZHANG ; Shunxin LYU ; Yufei WANG ; Xiangning CUI ; Yingdong LU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(17):1-12
ObjectiveTo investigate the therapeutic effects of modified Baoyuantang combined with Linggui Zhugantang on post-myocardial infarction heart failure in rats and its influence on NOD-like receptor pyrin domain-containing protein 3 (NLRP3)/gasdermin D (GSDMD)-mediated pyroptosis. MethodsSixty male SD rats were randomized into sham, model, low-, medium-, and high-dose (2.52, 5.04, 10.08 g·kg-1, respectively) modified Baoyuantang combined with Linggui Zhugantang, and sacubitril/valsartan sodium (0.021 g·kg-1) groups, with 10 rats in each group. Except the sham group, the other groups underwent left anterior descending coronary artery ligation for the modeling of myocardial infarction. The treatment groups were administrated with corresponding drugs by gavage, and the sham and model groups received an equal volume of normal saline. Administration began on the first day after successful modeling, once daily, for 4 weeks. Echocardiography was used to measure left ventricular ejection fraction (LVEF), left ventricular fractional shortening (LVFS), left ventricular end-diastolic and end-systolic diameters (LVIDd and LVIDs), left ventricular posterior wall thicknesses at end-diastole and end-systole (LVPWd, LVPWs), and left ventricular volumes at end-diastole and end-systole (LV Vold and LV Vols). Cardiac mass index and heart weight-to-tibia length ratio were calculated. Hematoxylin-eosin (HE) staining and Sirius Red staining were performed to observe myocardial morphology and collagen deposition. Immunohistochemistry was employed to detect the expression of type I collagen (Collagen Ⅰ), NLRP3, GSDMD, and interleukin-1β (IL-1β). Transmission electron microscopy was used to observe the mitochondrial ultrastructure. Tetramethylrhodamine methyl ester (TMRM) staining was conducted to assess mitochondrial membrane potential (MMP) in cardiomyocytes. Real-time PCR was used to quantify the mRNA levels of NLRP3, cysteinyl aspartate-specific proteinase-1 (Caspase-1), IL-1β, GSDMD, and interleukin-18 (IL-18) in the myocardial tissue. Western blotting was employed to determine the protein levels of NLRP3, Caspase-1, GSDMD, IL-1β, IL-18, nuclear factor kappa-B (NF-κB) p50, and NF-κB p65 in the myocardial tissue. Enzyme-linked immunosorbent assay (ELISA) was adopted to measure the serum levels of tumor necrosis factor-α (TNF-α), IL-1β, and IL-6. ResultsCompared with the sham group, the model group showed increased LVIDd, LVIDs, LV Vold, LV Vols, cardiac mass index, and heart weight-to-tibia length ratio (P<0.05), decreased LVPWs, LVEF, LVFS, and MMP (P<0.05), evident myocardial inflammation, fibrosis, and mitochondrial damage, upregulated expression of NLRP3, Caspase-1, GSDMD, IL-1β, IL-18, NF-κB p50, and NF-κB p65, and elevated serum levels of TNF-α, IL-1β, and IL-6 (P<0.05). Compared with the model group, modified Baoyuantang combined with Linggui Zhugantang reduced the LVIDd, LVIDs, LV Vols, cardiac mass index, and heart weight-to-tibia length ratio (P<0.05), increased the LVPWs, LVEF, LVFS, and MMP (P<0.05), alleviated myocardial inflammation and fibrosis, improved the mitochondrial structure and function, downregulated the expression of NLRP3, Caspase-1, GSDMD, IL-1β, IL-18, NF-κB p50, and NF-κB p65 (P<0.05), and reduced the serum levels of TNF-α, IL-1β, and IL-6 (P<0.05). ConclusionModified Baoyuantang combined with Linggui Zhugantang can ameliorate post-myocardial infarction ventricular remodeling and improve the cardiac function by reducing mitochondrial damage and inhibiting NLRP3/GSDMD-mediated pyroptosis.
9.Mechanism of Intervening with Diarrhea-predominant Irritable Bowel Syndrome in Rats with Spleen Deficiency by Xingpi Capsules Through Regulating 5-HT-RhoA/ROCK2 Pathway
Gang WANG ; Lingwen CUI ; Xiangning LIU ; Rongxin ZHU ; Mingyue HUANG ; Ying SUN ; Boyang JIAO ; Ran WANG ; Chun LI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(6):60-69
ObjectiveTo investigate the efficacy of Xingpi capsules (XPC) in treating diarrhea-predominant irritable bowel syndrome (IBS-D) with spleen deficiency and elucidate its potential molecular mechanisms. MethodsA rat model of IBS-D with spleen deficiency was established by administering senna leaf in combination with restrained stress and swimming fatigue for 14 d. Ten specific pathogen free (SPF)-grade healthy rats were used as the normal control group. After successful modeling, SPF-grade rats were randomly divided into a model group, a pinaverium bromide group (1.5 mg·kg-1), and low- and high-dose XPC groups (0.135 and 0.54 g·kg-1), with 10 rats in each group. Rats in the normal control group and the model group were given distilled water by gavage, while the remaining groups were administered corresponding drug solutions by gavage once a day for 14 consecutive days. The rat body weights and fecal condition were observed every day, and the Bristol score was recorded. Enzyme-linked immunosorbent assay (ELISA) was used to determine the levels of 5-hydroxytryptamine (5-HT) in serum and colon tissue. Transmission electron microscopy was used to observe the microvilli and tight junctions in the colon. The integrity of the colonic barrier, intestinal motility, and expression of related pathway proteins were evaluated by hematoxylin-eosin (HE) staining, immunohistochemistry, and Western blot. ResultsCompared with those in the normal control group, rats in the model group showed a significantly decreased body weight and increased diarrhea rate, diarrhea grade, and Bristol score (P<0.01). HE staining revealed incomplete colonic mucosa in the model group, with evident congestion and edema observed. Electron microscopy results indicated decreased density and integrity of the colonic barrier, shedding and disappearance of microvilli, and significant widening of tight junctions. The expression levels of colonic tight junction proteins Occludin and Claudin-5 were downregulated (P<0.01), and the levels of 5-HT in serum and colon tissue were elevated (P<0.01). The small intestine propulsion rate significantly increased (P<0.01), and the expression of contractile proteins Ras homolog family member A (RhoA) and Rho-associated coiled-coil containing protein kinase 2 (ROCK2) in colon and phosphorylation of myosin light chain (MLC20) were upregulated (P<0.01). Compared with the model group, the treatment groups showed alleviated diarrhea, diarrhea-associated symptoms, and pathological manifestations of colon tissue to varying degrees. Specifically, high-dose XPC exhibited effectively relieved diarrhea, promoted recovery of colonic mucosal structure, significantly reduced congestion and edema, upregulated expression of Occludin and Claudin-5 (P<0.01), decreased levels of 5-HT in serum and colon tissue (P<0.05,P<0.01), significantly slowed small intestine propulsion rate (P<0.01), and significantly downregulated expression of contractile proteins RhoA and ROCK2 in colon and phosphorylation of MLC20 (P<0.05,P<0.01). ConclusionXPC effectively alleviates symptoms of spleen deficiency and diarrhea and regulates the secretion of brain-gut peptide. The characteristics of XPC are mainly manifested in alleviating IBS-D with spleen deficiency from the aspects of protecting intestinal mucosa and inhibiting smooth muscle contraction, and the mechanism is closely related to the regulation of the 5-HT-RhoA/ROCK2 pathway expression.
10.Blood management strategy for massive transfusion patients in frigid plateau region
Haiying WANG ; Jinjin ZHANG ; Lili CHEN ; Xiaoli SUN ; Cui WEI ; Yongli HUANG ; Yingchun ZHU ; Chong CHEN ; Yanchao XING
Chinese Journal of Blood Transfusion 2025;38(2):268-273
[Objective] To explore the strategy of blood management in patients with massive transfusion in the frigid plateau region. [Methods] The treatment process of a patient with liver rupture in the frigid plateau region was analyzed, and the blood management strategy of the frigid plateau region was discussed in combination with the difficulties of blood transfusion and literature review. [Results] The preoperative complete blood count (CBC) test results of the patient were as follows: RBC 3.14×1012/L, Hb 106 g/L, HCT 30.40%, PLT 115.00×109/L; coagulation function: PT 18.9 s, FiB 1.31 g/L, DD > 6 μg/mL, FDP 25.86 μg/mL; ultrasound examination and imaging manifestations suggested liver contusion and laceration / intraparenchymal hematoma, splenic contusion and laceration, and massive blood accumulation in the abdominal cavity; it was estimated that the patient's blood loss was ≥ 2 000 mL, and massive blood transfusion was required during the operation; red blood cell components were timely transfused during the operation, and the blood component transfusion was guided according to the patient's CBC and coagulation function test results, providing strong support and guarantee for the successful treatment of the patient. The patient recovered well after the operation, and the CBC test results were as follows: RBC 4.32×1012/L, Hb 144 g/L, HCT 39.50%, PLT 329.00×109/L; coagulation function: APTT 29.3 s, PT 12.1 s, FiB 2.728 g/L, DD>6 μg/mL, FDP 25.86 μg/mL. The patient was discharged after 20 days, and regular follow-up reexamination showed no abnormal results. [Conclusion] Individualized blood management strategy should comprehensively consider the patient’s clinical symptoms, the degree of hemoglobin decline, dynamic coagulation test results and existing treatment conditions. Efficient and reasonable patient blood management strategies can effectively improve the clinical outcomes of massive transfusion patients in the frigid plateau region.

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