1.Treatment Principles and Paradigm of Diabetic Microvascular Complications Responding Specifically to Traditional Chinese Medicine
Anzhu WANG ; Xing HANG ; Lili ZHANG ; Xiaorong ZHU ; Dantao PENG ; Ying FAN ; Min ZHANG ; Wenliang LYU ; Guoliang ZHANG ; Xiai WU ; Jia MI ; Jiaxing TIAN ; Wei ZHANG ; Han WANG ; Yuan XU ; .LI PINGPING ; Zhenyu WANG ; Ying ZHANG ; Dongmei SUN ; Yi HE ; Mei MO ; Xiaoxiao ZHANG ; Linhua ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):272-279
To explore the advantages of traditional Chinese medicine (TCM) and integrative TCM-Western medicine approaches in the treatment of diabetic microvascular complications (DMC), refine key pathophysiological insights and treatment principles, and promote academic innovation and strategic research planning in the prevention and treatment of DMC. The 38th session of the Expert Salon on Diseases Responding Specifically to Traditional Chinese Medicine, hosted by the China Association of Chinese Medicine, was held in Beijing, 2024. Experts in TCM, Western medicine, and interdisciplinary fields convened to conduct a systematic discussion on the pathogenesis, diagnostic and treatment challenges, and mechanism research related to DMC, ultimately forming a consensus on key directions. Four major research recommendations were proposed. The first is addressing clinical bottlenecks in the prevention and control of DMC by optimizing TCM-based evidence evaluation systems. The second is refining TCM core pathogenesis across DMC stages and establishing corresponding "disease-pattern-time" framework. The third is innovating mechanism research strategies to facilitate a shift from holistic regulation to targeted intervention in TCM. The fourth is advancing interdisciplinary collaboration to enhance the role of TCM in new drug development, research prioritization, and guideline formulation. TCM and integrative approaches offer distinct advantages in managing DMC. With a focus on the diseases responding specifically to TCM, strengthening evidence-based support and mechanism interpretation and promoting the integration of clinical care and research innovation will provide strong momentum for the modernization of TCM and the advancement of national health strategies.
2.Effect of Qingxin Jieyu Granules on Artery Thrombosis and Akt/NF-κB Signaling Pathway in EA.hy926 Cells Exposed to TNF-α
Chenchen HE ; Chenyi WEI ; Zhenghao LYU ; Qiaoyan CAI ; Zhuye GAO ; Ling ZHANG ; Jianfeng CHU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(3):89-97
ObjectiveTo observe the effects of Qingxin Jieyu granules (QXJYG) on FeCl3-induced carotid artery thrombosis in rats and on the expression of thrombosis-related proteins tissue factor (TF) and tissue factor pathway inhibitor (TFPI) as well as the protein kinase B (Akt)/nuclear factor-κB (NF-κB) signaling pathway in EA.hy926 cells exposed to tumor necrosis factor-α (TNF-α), thus preliminarily exploring the mechanism of QXJYG in inhibiting thrombosis. MethodsThirty-six SD rats were randomized into normal control, model, positive control (aspirin, 9 mg·kg-1), and low-, medium-, and high-dose (0.99, 1.98, 3.96 g·kg-1, respectively) QXJYG groups (n=6). The rats in the drug treatment groups were administrated with corresponding drugs, and those in the normal control group and model group were given an equal volume of distilled water. After 14 consecutive days of prophylactic gavage, the rat model of common carotid artery thrombosis was established with 45% FeCl3 solution, and the blood vessels were collected and the wet weight of thrombus was weighed by an electronic balance (precision of 1/10 000). The thrombosis in the common carotid artery of each group of rats was observed by hematoxylin-eosin staining. The plasma levels of von Willebrand factor (vWF), platelet endothelial cell adhesion molecule-1 (PECAM-1), tissue-type plasminogen activator (t-PA), and plasminogen activator inhibitor-1 (PAI-1) were determined by enzyme-linked immunosorbent assay. An endothelial cell injury model was established by treating EA.hy926 human umbilical vein endothelial cells with TNF-α. The cell counting kit-8 method was used to screen the intervention concentrations of QXJYG. Western blot was employed to determine the protein levels of TF, TFPI, Akt, p-Akt, NF-κB p65, and p-NF-κB p65 in each group of cells. ResultsThe animal experiment showed that compared with the normal control group, the model group showed an increase in carotid artery thrombus weight (P<0.05), with unclear vascular structure and extensive thrombosis in the lumen. In addition, the plasma levels of vWF, PECAM-1, and PAI-1 were elevated, while the t-PA level became lowered (P<0.05) in the model group. Compared with the model group, the aspirin and QXJYG groups showed reductions in the weight of FeCl3-induced carotid artery thrombi (P<0.05) and thrombosis in the lumen, declines in plasma levels of PECAM-1 and PAI-1, and an elevation in the t-PA level (P<0.05). Moreover, the QXJYG groups showed reductions in the plasma level of vWF (P<0.05), which, however, had no significant difference between the aspirin group and the model group. The cell experiments indicated that 31.25, 62.5, 125, 250, 500 mg·L-1 QXJYG had no effect on the viability of EA.hy926 cells. Therefore, 250, 500 mg·L-1 QXJYG were selected as the intervention concentrations for subsequent experiments. Western blotting results showed that compared with the control group, the TNF-α stimulation downregulated the expression of TFPI (P<0.05), upregulated the expression of TF, and increased the ratios of p-Akt/Akt and p-NF-κB p65/NF-κB p65 (P<0.05) in EA.hy926 cells. Compared with the model group, the intervention with QXJYG upregulated the expression of TFPI (P<0.05), inhibited the expression of TF, and decreased the ratios of p-Akt/Akt and p-NF-κB p65/NF-κB p65 (P<0.05). ConclusionQXJYG has the effect of inhibiting thrombosis and regulating the expression of TF and TFPI in endothelial cells exposed to TNF-α by suppressing the abnormal activation of the Akt/NF-κB signaling pathway.
3.Textual Research of Key Information of Classic Formula Xieqingwan Based on Ancient and Modern Literature
Yujie CHANG ; Lyuyuan LIANG ; Jialei CAO ; Xinghang LYU ; Wenxi WEI ; Xiaofang WANG ; Huizhen ZHANG ; Sai REN ; Mengqi WANG ; Bingqi WEI ; Bingxiang MA
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(4):226-234
ObjectiveThis paper aims to systematically collect and organize ancient and modern clauses and studies containing Xieqingwan, excavate and analyze the key information of Xieqingwan, and provide a reference for facilitating the development of the classic formula Xieqingwan. MethodsThe composition, dosage, decocting methods, usage, and other key information of Xieqingwan in ancient traditional Chinese medicine books were collected and analyzed by means of literature research and metrological methods. The modern clinical application of Xieqingwan was summarized. ResultsA total of 42 pieces of effective data involving 32 ancient traditional Chinese medicine books were collected. Xieqingwan was first recorded in Xiaoer Yaozheng Zhijue. The drug origin of this formula is basically clear in the ancient traditional Chinese medicine books. The modern drug usage and decocting method were as follows: Angelicae Sinensis Radix, Gentianae Radix et Rhizoma, Chuanxiong Rhizoma, Gardenia seeds, Radix et Rhizoma Rhei, Notopterygii Rhizoma et Radix, and Saposhnikoviae Radix were grounded to fine powder, decocted with honey, and finally formed into pills with the size of a chicken head (1.5 g). It was suggested that half a pill or one pill were taken for one dose with warm Lophatheri decoction and sugar. The indications and clinical application had developed from the recordings in Xiaoer Yaozheng Zhijue and evolved from pediatrics to ophthalmic otolaryngology, neurology, dermatology, digestion, and respiratory diseases. The main pathogenesis of these diseases is heat in the liver meridian and is treated. The effect of Xieqingwan is "clearing away heat and toxicity, removing fire and relaxing the bowels, and dispersing swelling and relieving pain". It is recommended to use the corresponding preparation methods in the 2020 Edition of Pharmacopoeia of the People's Republic of China. Modern clinical studies are centered around the clinical application of Xieqingwan, which is often modified and used in treating Tourette syndrome, herpes, febrile convulsion, sleepwalking, and insomnia. ConclusionThis paper conducts a thorough textual research of the key information of Xieqingwan, induces its historic evolution, and confirms its key information, so as to provide a reference for the future development of Xieqingwan.
4.Analysis of risk factors for post-prematurity respiratory disease in very preterm infants
You YOU ; Jingwen LYU ; Lin ZHOU ; Liping WANG ; Jufeng ZHANG ; Li WANG ; Yongjun ZHANG ; Hongping XIA
Chinese Journal of Pediatrics 2025;63(1):50-54
Objective:To investigate the risk factors associated with post-prematurity respiratory disease (PPRD) in very preterm infants.Methods:A prospective cohort study was conducted, enrolling 369 very preterm infants who were admitted to the neonatal intensive care unit of Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, within one week of birth from January 2019 to June 2023. Data on maternal and infant clinical characteristics, neonatal morbidities, and treatments during hospitalization were collected. The very preterm infants were divided into 2 groups based on whether they developed PPRD. Continuous variables were compared using Mann-Whitney U test, while categorical variables were compared using χ2 tests or continuity correction χ2 test. Multivariate Logistic regression analysis was used to identify the independent risk factors for PPRD in very preterm infants. Results:Among the 369 very preterm infants, 217 cases(58.8%) were male, with a gestational age of 30 (28, 31) weeks at birth and a birth weight of 1 320 (1 085, 1 590) g. Of these, 116 cases (31.4%) developed PPRD, while 253 cases (68.6%) did not. The very preterm infants in the PPRD group had a lower gestational age and lower birth weight (both, P<0.001). The PPRD group also had a higher proportion of males, lower Apgar scores at the 1 th minute after birth and the 5 th minutes after birth, a higher rate of born via cesarean delivery, and a higher incidence of bronchopulmonary dysplasia, more pulmonary surfactant treatment, longer durations of mechanical ventilation, longer total oxygen therapy, and lower Z-score for weight at discharge (all P<0.05). Multivariate Logistic regression analysis showed that gestational age ( OR=0.85, 95% CI 0.73-0.99, P=0.037), born via cesarean delivery ( OR=2.23, 95% CI 1.21-4.10, P=0.010), a duration of mechanical ventilation ≥7 days ( OR=2.51, 95% CI 1.43-4.39, P=0.001), and a Z-score for weight at discharge ( OR=0.82, 95% CI 0.67-0.99, P=0.040) were all independent risk factors for PPRD in very preterm infants. Conclusion:Very preterm infants with a small gestational age, born via cesarean section, mechanical ventilation ≥7 days, and a low Z-score for weight at discharge should be closely monitored for PPRD, and provided with standardized respiratory management after discharge.
5.Effect of Tuina at "Weizhong (BL 40)" on Spinal Microglial Activation-related Proteins and the IL-10/β-EP Pathway in a Rat Model of Chronic Sciatic Nerve Compression Injury
Tianwei ZHANG ; Xiangqian LYU ; Yani XING ; Liuchen ZHU ; Qingguang ZHU ; Lingjun KONG ; Yanbin CHENG ; Zhen YAN ; Wuquan SUN ; Min FANG ; Zhiwei WU
Journal of Traditional Chinese Medicine 2025;66(7):734-740
ObjectiveTo investigate the analgesic effect of Tuina at the "Weizhong (BL 40)" on neuropathic pain in a rat model of chronic constriction injury (CCI) of the sciatic nerve and its potential central spinal mechanisms. MethodsThirty-two Sprague-Dawley rats were randomly divided into four groups (8 rats in each group), sham-operated group, model group, Tuina group, and blockade group. The CCI model was established in the model group, Tuina group, and the blockade group by ligating the sciatic nerve with catgut, while the sham-operated group underwent only sciatic nerve exposure without ligation. From postoperative day 4 to day 14, rats in the Tuina group and the blockade group received Tuina manipulation at the "Weizhong (BL 40)" using a dynamic pressure distribution measurement system (5 N pressure, 2 Hz frequency, 10 min per session, once daily). The blockade group also received intraperitoneal injections of the microglial inhibitor minocycline (10 mg/kg) once daily. The sham-operated and the model group underwent the same handling and fixation as the Tuina group without actual Tuina. Mechanical withdrawal threshold (MWT) and paw withdrawal latency (PWL) were measured before surgery and on day 3, 7, 10, and 14 post-surgery. Transmission electron microscopy was used to evaluate sciatic nerve injury and repair, measuring axon diameter and total myelinated fiber diameter to calculate the g-ratio. Western Blotting was performed to detect the protein levels of ionized calcium-binding adapter molecule 1 (Iba-1), CD206, CD68, interleukin-10 (IL-10), and β-endorphin (β-EP) precursor pro-opiomelanocortin (POMC) in the ipsilateral spinal dorsal horn. ResultsCompared with the sham-operated group, the model group showed significantly reduced MWT and PWL on day 3, 7, 10, and 14 (P<0.01). Compared with the model group, the Tuina group and the blockade group showed increased MWT and PWL on day 10 and 14 (P<0.05). Compared with the Tuina group, the blockade group exhibited higher MWT on day 7, 10, and 14, and higher PWL on day 10 (P<0.05). Sciatic nerve pathological morphology revealed intact and well-structured myelin in the sham-operated group, while the model group exhibited myelin collapse, distortion, and myelin ovoid formation. The Tuina group displayed partially irregular myelin with occasional myelin collapse, whereas the blockade group exhibited partial myelin irregularities and phospholipid shedding. Compared with the sham-operated group, the model group showed a decreased g-ratio and increased levels of Iba-1 and CD68 in the spinal dorsal horn (P<0.05 or P<0.01). Compared with the model group, the Tuina group and the blockade group exhibited an increased g-ratio and reduced Iba-1 and CD68 levels. Additionally, the Tuina group showed elevated levels of CD206, IL-10, and POMC, whereas the blockade group had decreased CD206 levels (P<0.05). ConclusionTuina at "Weizhong (BL 40)" alleviates neuropathic pain in CCI rats, potentially by regulating microglial activation in the spinal cord, inhibiting M1 polarization while promoting M2 polarization, and activating the IL-10/β-EP pathway to exert analgesic effects.
6.Mechanism of Congrong Zonggan Capsules in Improving Neuroinflammation and Cognitive Impairment in 5×FAD Mice Based on NF-κB/NLRP3 Signaling Pathway
Yanru ZHOU ; Xinru GU ; Yuru LIU ; Shun ZHANG ; Yaozhong LYU ; Zhenzhong WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(10):130-138
ObjectiveTo investigate the effects of Congrong Zonggan capsules (CRZG) on cognitive impairment in the Alzheimer's disease (AD) model of mice and its related mechanisms. MethodsSPF grade 4-week-old 5×FAD mice were divided into a model group, low-dose CRZG (0.819 g·kg-1) and high-dose CRZG (1.638 g·kg-1) groups, and Donepezilepezil hydrochloride group (2 mg·kg-1), with eight mice in each group. Eight C57 mice with the same background were set as the normal group. After one week of adaptive feeding, mice were orally administered continuously for six months. On the 5th month of drug administration, Y maze, new object recognition, and Morris water maze tests were conducted separately. After administration, mouse brain tissue was taken, and the levels of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in brain tissue were detected by enzyme-linked immunosorbent assay (ELISA). Immunofluorescence (IF) was used to detect the expression of small glial cell markers Iba1, astrocyte markers GFAP, and amyloid protein 1-42 (Aβ1-42) in the hippocampus of the brain tissue. The hematoxylin-eosin (HE) staining was used to detect pathological changes in the hippocampus of brain tissue. Western blot was used to detect the expression of nuclear factor-κB (NF-κB) p65, NOD-like receptor protein 3 (NLRP3), cleaved Caspase-1, apoptosis-associated speck-like protein containing a CARD (ASC), and other proteins in the brain tissue. ResultsCompared with those in the normal group, the mice in the model group had obvious cognitive impairment. The spontaneous alternation rate of the Y maze was decreased, and the discrimination index of novel object recognition was decreased significantly (P<0.01). The escape latency in the water maze was shortened significantly (P<0.01). The contents of IL-6 and TNF-α in brain tissue were increased. The fluorescence levels of Iba1 and Aβ1-42 in the hippocampus were significantly increased (P<0.01). There was a significant increase in neuronal lesions, neuronal atrophy, loose arrangement of tissue structure, and abnormal erythrocyte aggregation in the hippocampus. The protein expressions of p-NF-κB p65/NF-κB p65, cleaved Caspase-1, ASC, IL-6, and IL-1β were significantly increased (P<0.05, P<0.01). Compared with the model group, the spontaneous alternation rate and discrimination index of the high-dose CRZG group were increased significantly (P<0.01), and the escape latency was shortened significantly (P<0.05, P<0.01). The content of IL-6 decreased in the brain, and that of TNF-α dropped significantly (P<0.01). The expression of Iba1 protein and Aβ1-42 in the hippocampus decreased significantly (P<0.05, P<0.01). The hippocampal neurons were densely arranged, and the pyramidal nuclei were clear and centered. The abnormal aggregation of red blood cells was alleviated. The value of p-NF-κB/NF-κB proteins and the expression of ASC, cleaved Caspase-1, IL-6, and IL-1β were significantly decreased (P<0.05, P<0.01). ConclusionCRZG can effectively improve cognitive impairment in 5×FAD mice with Alzheimer's disease, and its mechanism may be related to the regulation of the NF-κB/NLRP3 pathway to reduce the abnormal activation of microglia and inhibit neuroinflammation.
7.Analysis on Quality Standard of Hedyotis Herba Dispensing Granules Based on Standard Decoction
Jinghua ZHANG ; Nana WU ; Yanan LYU ; Guiyun CAO ; Jiacheng XU ; Yongqiang LIN ; Xiaodi DONG ; Jinxin LI ; Zhaoqing MENG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(10):210-217
ObjectiveTo establish the specific chromatogram and quantitative analysis of multi-components by single-marker(QAMS) based on linear calibration using two reference substances(LCTRS), explore the consistency between Hedyotis Herba dispensing granules and standard decoction, and evaluate the quality of the dispensing granules. MethodsHigh performance liquid chromatography(HPLC) specific chromatogram was established based on 15 batches of Hedyotis Herba standard decoction and 10 batches of the dispensing granules, and LCTRS was used to locate chromatographic peaks. The actual retention times of 7 characteristic peaks in the specific chromatogram was measured on 24 different types of C18 columns, taking deacetyl asperulosidic acid and asperulosidic acid as the dual standard compounds, the retention times of the other 5 characteristic peaks were predicted and validated. Based on this, QAMS was developed to determine the contents of four components(deacetyl asperulosidic acid, deacetyl asperulosidic acid methyl ester, asperulosidic acid, and p-coumaric acid). Then, the relative correction factors of deacetyl asperulosidic acid, deacetyl asperulosidic acid methyl ester and p-coumaric acid were calculated using the reference peak of asperulosidic acid in the dual standard compounds, and each component was quantified accordingly. Finally, the consistency between the dispensing granules and standard decoction was assessed by taking extract rate of the standard decoction, consistency of the specific chromatograms, contents and transfer rates of the indicator components as indexes, and the quality of the dispensing granules was evaluated. ResultsThere were 7 common peaks in the characteristic chromatogram of samples of Hedyotis Herba standard decoction and the dispensing granules, and four of them were identified by reference standards, namely deacetyl asperulosidic acid(peak 1), deacetyl asperulosidic acid methyl ester(peak 3), asperulosidic acid(peak 6) and p-coumaric acid(peak 7). The similarity between the dispensing granules and the standard decoction was >0.9. The absolute deviation in the predicted retention time for each component by LCTRS was lower than that of the relative retention time method. The extract rate of the 15 batches of Hedyotis Herba standard decoction ranged from 7.89% to 14.60%, the contents of deacetyl asperulosidic acid, deacetyl asperulosidic acid methyl ester, asperulosidic acid and p-coumaric acid were 6.62-19.70, 3.83-17.99, 1.57-6.69, 1.62-4.52 mg·g-1, and the transfer rates of these components from decoction pieces to the standard decoction were 22.89%-39.60%, 34.03%-62.24%, 24.25%-43.70%, and 40.58%-73.71%, respectively. The extract rate, index component contents and transfer rates from decoction pieces to the three batches of Hedyotis Herba dispensing granules(P1-P3), produced by manufacturer A, were similar to those of the standard decoction prepared from the same batch of decoction pieces, and all fell within the specified range. The contents of the 4 indicator components in 7 batches of the dispensing granules(P4-P10) from manufacturers B-E were all within the range of the content converted from the standard decoction based on the quantity of the dispensing granules. ConclusionThe established specific chromatogram and QAMS based on LCTRS are reasonable and reliable. Based on the evaluation indicators of standard decoction yield, consistency of specific chromatograms, contents and transfer rates of the four index components, the 10 batches of Hedyotis Herba dispensing granules from various manufacturers have exhibited good consistency with the standard decoction, indicating that the current production process is relatively reasonable.
8.Correlation Between Quality of Life and Traditional Chinese Medicine Syndromes in Patients with Myasthenia Gravis
Yibin ZHANG ; Qi LU ; Baitong WANG ; Yixun QI ; Hanying XU ; Peng XU ; Meijin SONG ; Peixi ZHAO ; Zhiguo LYU ; Jian WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(10):275-281
ObjectiveThis study aimed to explore the correlation between the quality of life (QOL) and different traditional Chinese medicine (TCM) syndromes in patients with myasthenia gravis (MG), identifying potential influencing factors to provide new insights for clinical interventions and improving the QOL of patients with MG. MethodsA questionnaire survey was conducted on 93 adults with MG who visited the Department of Neurology at the Affiliated Hospital of Changchun University of Chinese Medicine from March 2023 to January 2024. Statistical analysis was performed on the clinical data collected using SPSS 24.0 software. ResultsAmong the 93 patients with MG, the average score for myasthenia gravis quality of life-15 (MGQOL-15) was 17.65±6.27, and that for the 36-item short form health survey (SF-36) was (106.13±11.83) scores. The QOL was rated as good for 16 patients and moderate for 77 patients. There were no statistically significant differences in the scores of MGQOL-15, SF-36, and their individual scales by gender or education level. Age showed statistically significant differences in MGQOL-15 and the role physical (RP) scale (P<0.05), and occupational type showed significant differences in the vitality (VT) scale (P<0.01). The Myasthenia Gravis Foundation of America (MGFA) classification had statistical significance on the total SF-36 score (P<0.01), VT scale (P<0.01), role emotional (RE) scale (P<0.05), social functioning (SF) scale (P<0.05), and physical functioning (PF) scale (P<0.01). Among patients with different TCM syndromes, there were significant differences in MGQOL-15 scores (F=4.919, P<0.01). Moreover, significant differences were observed in SF-36 scores (P<0.01), VT scale (P<0.01), RE scale (P<0.05), mental health (MH) scale (P<0.01), and SF scale (P<0.05). ConclusionFactors affecting the QOL of patients with MG include age, occupational type, and clinical classification of MG. Specifically, a greater impact on the QOL of older patients is observed, while physical laborers have a poorer QOL compared to non-physical laborers. Patients classified as MGFA type Ⅱ and higher have a poorer QOL. Additionally, there is a potential correlation between the QOL and TCM syndromes, with patients presenting with spleen and kidney Qi deficiency having a lower QOL than those with spleen and stomach Qi deficiency or Qi and Yin deficiency, which is particularly evident in the VT, RE, MH, and SF scales.
9.Analysis of clinical infection characteristics of multidrug-resistant organisms in hospitalized patients in a tertiary sentinel hospital in Shanghai from 2021 to 2023
Qi MAO ; Tenglong ZHAO ; Xihong LYU ; Zhiyuan GU ; Bin CHEN ; Lidi ZHAO ; Xifeng LI ; Xing ZHANG ; Liang TIAN ; Renyi ZHU
Shanghai Journal of Preventive Medicine 2025;37(2):156-159
ObjectiveTo understand the infection characteristics of multidrug-resistant organisms (MDROs) in hospitalized patients in a tertiary sentinel hospital in Shanghai, so as to provide an evidence for the development of targeted prevention and control measures. MethodsData of MDROs strains and corresponding medical records of some hospitalized patients in a hospital in Shanghai from 2021 to 2023 were collected, together with an analysis of the basic information, clinical treatment, underlying diseases and sources of sample collection. ResultsA total of 134 strains of MDROs isolated from hospitalized patients in this hospital were collected from 2021 to 2023 , including 63 strains of methicillin-resistant Staphylococcus aureus (MRSA), 57 strains of carbapenem-resistant Acinetobacter baumannii (CRAB), and 14 strains of carbapenem-resistant Klebsiella pneumoniae (CRKP). Of the 134 strains, 30 strains were found in 2021, 47 strains in 2022 and 57 strains in 2023. The male-to-female ratio of patients was 2.05∶1, with the highest percentage (70.90%) in the age group of 60‒<90 years. The primary diagnosis was mainly respiratory disease, with lung and respiratory tract as the cheif infection sites. There was no statistically significant difference in the distribution of strains between different genders and infection sites (P>0.05). However, the differences in the distribution of strains between different ages and primary diagnosis were statistically significant (P<0.05). Patients who were admitted to the intensive care unit (ICU), had urinary tract intubation, were not artery or vein intubated, were not on a ventilator, were not using immunosuppresants or hormones, and were not applying radiotherapy or chemotherapy were in the majority. There was no statistically significant difference in the distribution of strains for whether received radiotherapy or chemotherapy or not (P>0.05), while the differences in the distribution of strains with ICU admission history, urinary tract intubation, artery or vein intubation, ventilator use, and immunosuppresants or hormones use or not were statistically significant (all P<0.05). The type of specimen was mainly sputum, the hospitalized ward was mainly comprehensive ICU, the sampling time was mainly in the first quarter throughout the year, the number of underlying diseases was mainly between 1 to 2 kinds, the application of antibiotics ≥4 kinds, and those who didn’t receive any surgery recently accounted for the most. There were statistically significant differences in the distribution of strains between different specimen types, wards occupied and history of ICU stay (P<0.05), but no statistically significant difference in the distribution of strains between different sampling times, number of underlying diseases and types of antibiotics applied (P>0.05). ConclusionThe situation of prevention and control on MDROs in this hospital is still serious. Focus should be placed on high-risk factors’ and infection monitoring and preventive measures should be strengthened to reduce the incidence rate of MDROs infection.
10.Mechanism of Tangbikang Dry Paste in Prevention and Treatment of Type 2 Diabetic Peripheral Neuropathy Based on GLO-1/AGE/RAGE Pathway
Lijia WU ; Chengfei ZHANG ; Xiaolei JIA ; Lingling QIN ; Haiyan WANG ; Yukun HUANG ; You WANG ; Xincui BAO ; Jing YANG ; Cuiyan LYU ; Tonghua LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):60-69
ObjectiveTo investigate the mechanism of Tangbikang dry paste in the prevention and treatment of type 2 diabetic peripheral neuropathy (DPN) based on the glyoxalase-1 (GLO-1)/advanced glycation end products (AGE)/receptor for advanced glycation end products (RAGE) pathway. MethodsA total of 56 Sprague-Dawley rats were randomly divided, with eight assigned to the normal group. The remaining 48 rats were fed a high-fat diet combined with intraperitoneal injection of streptozotocin (STZ) to induce a type 2 diabetes mellitus (T2DM) model. Based on blood glucose levels, the rats were randomly assigned to the model group, Tanglin group (13.5 mg·kg-1), metformin group (135 mg·kg-1), and Tangbikang dry paste low-, medium-, and high-dose groups (3, 6, 12 g·kg-1). Successful modeling of DPN was confirmed by a decrease in mechanical pain threshold in the model group at week 4. Fasting blood glucose, body weight, and mechanical pain threshold were measured every 4 weeks. After 16 weeks of intervention, the pathological morphology of the sciatic nerve was observed using hematoxylin-eosin (HE) staining. The expression of RAGE, AGE, protein kinase C (PKC), and collagen (COL) in the sciatic nerve was assessed by immunohistochemistry. The mRNA expression of RAGE, PKC, Toll-like receptor (TLR), COL, and GLO-1 was detected using real-time quantitative PCR (Real-time PCR). Serum levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT), creatinine (CREA), urea (UREA), interleukin-6 (IL-6), and tumor necrosis factor (TNF)-α were measured by enzyme-linked immunosorbent assay (ELISA). ResultsCompared with the normal group, the model group showed significantly increased fasting blood glucose (P<0.01), decreased body weight and mechanical pain threshold (P<0.01), and elevated serum AST, ALT, CREA, UREA, IL-6, and TNF-α levels (P<0.01). The expression of RAGE, AGE, and PKC in the sciatic nerve was significantly increased (P<0.01), while COL expression was decreased (P<0.01). The mRNA expression of TLR, RAGE, and PKC was upregulated (P<0.01), whereas COL and GLO-1 mRNA levels were downregulated (P<0.01). Histological examination showed irregular nerve morphology, axonal alterations, and myelin degeneration. Compared with the model group, fasting blood glucose levels in the Tangbikang dry paste high-dose group at all time points and in the medium-dose group at weeks 4 and 16 were significantly reduced (P<0.05, P<0.01). No significant changes in body weight were observed across all Tangbikang dose groups. The mechanical pain threshold was elevated at different time points after administration in all Tangbikang groups (P<0.05, P<0.01). Serum IL-6 and TNF-α levels were decreased in all dose groups (P<0.05, P<0.01). The expression of RAGE, AGE, and PKC in the sciatic nerve was reduced (P<0.01), while COL expression was increased (P<0.01). The mRNA expression of TLR, RAGE, and PKC was downregulated (P<0.01), whereas GLO-1 mRNA expression was upregulated (P<0.05, P<0.01). Additionally, COL mRNA expression was significantly increased in the low- and high-dose groups (P<0.01). Pathological changes in the sciatic nerve were milder in all Tangbikang groups compared to the model group. ConclusionTangbikang dry paste significantly improves DPN, and its mechanism may be associated with the regulation of the GLO-1/AGE/RAGE signaling pathway.

Result Analysis
Print
Save
E-mail