1.Digital identification of Cervi Cornu Pantotrichum based on HPLC-QTOF-MS~E and Adaboost.
Xiao-Han GUO ; Xian-Rui WANG ; Yu ZHANG ; Ming-Hua LI ; Wen-Guang JING ; Xian-Long CHENG ; Feng WEI
China Journal of Chinese Materia Medica 2025;50(5):1172-1178
Cervi Cornu Pantotrichum is a precious animal-derived Chinese medicinal material, while there are often adulterants derived from animals not specified in the Chinese Pharmacopeia in the market, which disturbs the safety of medication. This study was conducted with the aim of strengthening the quality control of Cervi Cornu Pantotrichum and standardizing the medication. To achieve digital identification of Cervi Cornu Pantotrichum from different sources, a digital identification model was constructed based on ultra-high performance liquid chromatography tandem quadrupole time-of-flight mass spectrometry(UHPLC-QTOF-MS~E) combined with an adaptive boosting algorithm(Adaboost). The young furred antlers of sika deer, red deer, elk, and reindeer were processed and then subjected to polypeptide analysis by UHPLC-QTOF-MS~E. Then, the mass spectral data reflecting the polypeptide information were obtained by digital quantification. Next, the key data were obtained by feature screening based on Gini index, and the digital identification model was constructed by Adaboost. The model was evaluated based on the recall rate, F_1 composite score, and accuracy. Finally, the results of identification based on the constructed digital identification model were validated. The results showed that when the Gini index was used to screen the data of top 100 characteristic polypeptides, the digital identification model based on Adaboost had the best performance, with the recall rate, F_1 composite score, and accuracy not less than 0.953. The validation analysis showed that the accuracy of the identification of the 10 batches of samples was as high as 100.0%. Therefore, based on UHPLC-QTOF-MS~E and Adaboost algorithm, the digital identification of Cervi Cornu Pantotrichum can be realized efficiently and accurately, which can provide reference for the quality control and original animal identification of Cervi Cornu Pantotrichum.
Animals
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Algorithms
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Antlers/chemistry*
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Boosting Machine Learning Algorithms
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Chromatography, High Pressure Liquid/methods*
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Deer
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Drugs, Chinese Herbal/chemistry*
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Mass Spectrometry/methods*
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Quality Control
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Reindeer
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Tandem Mass Spectrometry/methods*
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Tissue Extracts/analysis*
2.Theoretical discussion and research progress on treatment of glucocorticoid- induced osteoporosis with traditional Chinese medicine.
Ting-Ting XU ; Ying DING ; Xia ZHANG ; Long WANG ; Shan-Shan XU ; Chun-Dong SONG ; Wen-Sheng ZHAI ; Xian-Qing REN
China Journal of Chinese Materia Medica 2025;50(16):4437-4450
Glucocorticoid-induced osteoporosis(GIOP) is a serious metabolic bone disease caused by long-term application of glucocorticoids(GCs). Traditional Chinese medicine(TCM) has unique advantages in improving bone microstructure and antagonizing hormone toxicity. This paper systematically reviews the theoretical research, clinical application, and basic research progress of TCM intervention in GIOP. In terms of theoretical research, the theory of "kidney governing bone and generating marrow" indicates that the kidney is closely related to bone development, revealing that core pathogenesis of GIOP is Yin-Yang disharmony, which can be discussed using the theories of "Yin fire", "ministerial fire", and "Yang pathogen damaging Yin". Thus, regulating Yin and Yang is the basic principle to treat GIOP. In terms of clinical application, effective empirical prescriptions(such as Bushen Zhuanggu Decoction, Bushen Jiangu Decoction, and Zibu Ganshen Formula) and Chinese patent medicines(Gushukang Capsules, Hugu Capsules, Xianling Gubao Capsules, etc.) can effectively increase bone mineral density(BMD) and improve calcium and phosphorus metabolism. The combination of traditional Chinese and western medicine can reduce the risk of fracture and play an anti-GIOP role. In terms of basic research, it has been clarified that active ingredients of TCM(such as fraxetin, ginsenoside Rg_1, and salidroside) reduce bone loss and promote bone formation by inhibiting oxidative stress, ferroptosis, and other pathways, effectively improving bone homeostasis. Additionally, classical prescriptions(Modified Yiguan Decoction, Modified Qing'e Pills, Zuogui Pills, etc.) and Chinese patent medicines(Gushukang Granules, Lurong Jiangu Dropping Pills, Gubao Capsules, etc.) can improve bone marrow microcirculation, promote osteoblast differentiation, and inhibit bone cell apoptosis through multiple pathways, multiple targets, and multiple mechanisms. Through the above three aspects, the TCM research status on GIOP is elucidated in the expectation of providing reference for its diagnosis and treatment using traditional Chinese and western medicine treatment programs.
Osteoporosis/physiopathology*
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Humans
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Glucocorticoids/adverse effects*
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Drugs, Chinese Herbal/administration & dosage*
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Animals
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Medicine, Chinese Traditional
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Bone Density/drug effects*
3.Complications among patients undergoing orthopedic surgery after infection with the SARS-CoV-2 Omicron strain and a preliminary nomogram for predicting patient outcomes.
Liang ZHANG ; Wen-Long GOU ; Ke-Yu LUO ; Jun ZHU ; Yi-Bo GAN ; Xiang YIN ; Jun-Gang PU ; Huai-Jian JIN ; Xian-Qing ZHANG ; Wan-Fei WU ; Zi-Ming WANG ; Yao-Yao LIU ; Yang LI ; Peng LIU
Chinese Journal of Traumatology 2025;28(6):445-453
PURPOSE:
The rate of complications among patients undergoing surgery has increased due to infection with SARS-CoV-2 and other variants of concern. However, Omicron has shown decreased pathogenicity, raising questions about the risk of postoperative complications among patients who are infected with this variant. This study aimed to investigate complications and related factors among patients with recent Omicron infection prior to undergoing orthopedic surgery.
METHODS:
A historical control study was conducted. Data were collected from all patients who underwent surgery during 2 distinct periods: (1) between Dec 12, 2022 and Jan 31, 2023 (COVID-19 positive group), (2) between Dec 12, 2021 and Jan 31, 2022 (COVID-19 negative control group). The patients were at least 18 years old. Patients who received conservative treatment after admission or had high-risk diseases or special circumstances (use of anticoagulants before surgery) were excluded from the study. The study outcomes were the total complication rate and related factors. Binary logistic regression analysis was used to identify related factors, and odds ratio (OR) and 95% confidence interval (CI) were calculated to assess the impact of COVID-19 infection on complications.
RESULTS:
In the analysis, a total of 847 patients who underwent surgery were included, with 275 of these patients testing positive for COVID-19 and 572 testing negative. The COVID-19-positive group had a significantly higher rate of total complications (11.27%) than the control group (4.90%, p < 0.001). After adjusting for relevant factors, the OR was 3.08 (95% CI: 1.45-6.53). Patients who were diagnosed with COVID-19 at 3-4 weeks (OR = 0.20 (95% CI: 0.06-0.59), p = 0.005), 5-6 weeks (OR = 0.16 (95% CI: 0.04-0.59), p = 0.010), or ≥7 weeks (OR = 0.26 (95% CI: 0.06-1.02), p = 0.069) prior to surgery had a lower risk of complications than those who were diagnosed at 0-2 weeks prior to surgery. Seven factors (age, indications for surgery, time of operation, time of COVID-19 diagnosis prior to surgery, C-reactive protein levels, alanine transaminase levels, and aspartate aminotransferase levels) were found to be associated with complications; thus, these factors were used to create a nomogram.
CONCLUSION
Omicron continues to be a significant factor in the incidence of postoperative complications among patients undergoing orthopedic surgery. By identifying the factors associated with these complications, we can determine the optimal surgical timing, provide more accurate prognostic information, and offer appropriate consultation for orthopedic surgery patients who have been infected with Omicron.
Humans
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COVID-19/complications*
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Male
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Female
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Middle Aged
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Postoperative Complications/epidemiology*
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SARS-CoV-2
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Orthopedic Procedures/adverse effects*
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Aged
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Nomograms
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Adult
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Retrospective Studies
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Risk Factors
4.Huachansu injection enhances anti-colorectal cancer efficacy of irinotecan and alleviates its induced intestinal toxicity through upregulating UGT1A1-OATP1B3 expression in vitro and in vivo.
Bo JIANG ; Zhao-Yang MENG ; Yu-Jie HU ; Jun-Jun CHEN ; Ling ZONG ; Ling-Yan XU ; Xiang-Qi ZHANG ; Jing-Xian ZHANG ; Yong-Long HAN
Journal of Integrative Medicine 2025;23(5):576-590
OBJECTIVE:
Huachansu injection (HCSI), a promising anti-cancer Chinese medicine injection, has been reported to have the potential for reducing the toxicity of chemotherapy and improving the quality of life for colorectal cancer (CRC) patients. The objective of this study is to explore the synergistic and detoxifying effects of HCSI when used in combination with irinotecan (CPT-11).
METHODS:
To investigate the effect of HCSI on anti-CRC efficacy and intestinal toxicity of CPT-11, we measured changes in the biological behavior of LoVo cells in vitro, and anti-tumor effects in LoVo cell xenograft nude mice models in vivo. Meanwhile, the effect of HCSI on intestinal toxicity and the uridine diphosphate-glucuronosyltransferase 1A1 (UGT1A1) expression was investigated in the CPT-11-induced colitis mouse model. Subsequently, we measured the effect of HCSI and its 13 constituent bufadienolides on the expression of UGT1A1 and organic anion transporting polypeptides 1B3 (OATP1B3) in HepG2 cells.
RESULTS:
The combination index (CI) results showed that the combination of HCSI and CPT-11 exhibited a synergistic effect (CI < 1), which significantly suppressing the LoVo cell migration, enhancing G2/M and S phase arrest, and inhibiting tumor growth in vivo. Additionally, the damage to intestinal tissues was attenuated by HCSI in CPT-11-induced colitis model, while the increased expression of UGT1A1 in HepG2 cells and in mouse was observed.
CONCLUSION
The co-therapy with HCSI alleviated the intestinal toxicity induced by CPT-11 and exerted an enhanced anti-CRC effect. The detoxifying mechanism may be related to the increased expression of UGT1A1 and OATP1B3 by HCSI and its bufadienolides components. The findings of this study may serve as a theoretical insights and strategies to improve CRC patient outcomes. Please cite this article as: Jiang B, Meng ZY, Hu YJ, Chen JJ, Zong L, Xu LY, Zhang XQ, Zhang JX, Han YL. Huachansu injection enhances anti-colorectal cancer efficacy of irinotecan and alleviates its induced intestinal toxicity through upregulating UGT1A1-OATP1B3 expression in vitro and in vivo. J Integr Med. 2025; 23(5):576-590.
Irinotecan/therapeutic use*
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Animals
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Glucuronosyltransferase/genetics*
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Humans
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Colorectal Neoplasms/metabolism*
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Drugs, Chinese Herbal/therapeutic use*
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Mice, Nude
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Mice
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Up-Regulation/drug effects*
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Male
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Xenograft Model Antitumor Assays
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Mice, Inbred BALB C
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Hep G2 Cells
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Cell Line, Tumor
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Intestines/drug effects*
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Amphibian Venoms
5.Research progress on the application of intelligent medical treatment in abdominal war trauma
Si-Zhe WANG ; Xu SUN ; Ding-Chang LI ; Xian-Qiang LIU ; Wen-Xing GAO ; Wen ZHAO ; Hao LIU ; Guang-Long DONG
Medical Journal of Chinese People's Liberation Army 2025;50(1):22-27
Abdominal war trauma is a common and high-risk type of injury in the modern battlefield,with rapid changes in condition and a high mortality rate.There is an urgent need for emerging medical technologies to improve the efficiency and success rate of first aid for military casualties.With the development of artificial intelligence(AI),5G,and other emerging technologies,the concept of intelligent medical treatment is gradually forming and can assist in the diagnosis and treatment of abdominal trauma.This paper reviews the characteristics of abdominal war trauma in modern wars,discusses the application of intelligent medical treatment for abdominal war trauma and its drawbacks to be solved,aiming to provide reference for research related to abdominal war trauma.
6.Clinical characteristics of 10 cases of immune checkpoint inhibitor-related diabetes mellitus and literature review
Wen-Wen GONG ; Shu LI ; Yu-Long CHEN ; Li ZANG ; Jin DU ; Xian-Ling WANG ; Zhao-Hui LYU ; Qing-Hua GUO
Medical Journal of Chinese People's Liberation Army 2025;50(9):1103-1109
Objective To analyze the clinical characteristics,treatment,and prognosis of immune checkpoint inhibitor-related diabetes mellitus(ICI-DM).Methods The clinical characteristics,laboratory examinations,treatment regimens,and follow-up outcomes of 10 ICI-DM patients who were diagnosed and treated in the First Medical Center of Chinese PLA General Hospital between July 2019 and December 2024 were retrospectively analyzed.Relevant literatures were retrieved from domestic and foreign databases such as PubMed,CNKI,and VIP.The clinical characteristics of ICI-DM were summarized based on the literature results.Results All 10 patients were PD-1 inhibitor users,including 5 males and 5 females,with a median age of 54.5(51.3,64.0)years and a body mass index(BMI)of(22.0±2.15)kg/m2.Among them,9 cases(90.0%)were fulminant type 1 diabetes mellitus(FT1DM);9 cases(90.0%)had a severity of adverse events reaching grade 3-4 according to the Common Terminology Criteria for adverse events(CTCAE).The median time from PD-1 inhibitor treatment to the occurrence of the classic diabetes symptoms referred to as"three more and one less"(polyuria,polydipsia,polyphagia,and weight loss)in all patients was 145.5(110.5,204.8)days,and the medication duration was 6.0(4.3,7.8)cycles.The average blood glucose level of the 10 patients at the time of consultation was 25.3(10.0-41.4)mmol/L,and the glycated hemoglobin(HbA1c)level was 8.0%(6.6%-10.9%).Eight patients had fasting and 2-hour C-peptide levels<0.1 ng/ml(fasting C-peptide from<0.010 to 0.067 ng/ml,2-hour C-peptide from<0.010 to 0.077 ng/ml).Nine of the 10 patients were negative for diabetes autoantibodies,while 1 was not tested.All 10 patients were successfully treated with insulin and other therapies.During the follow-up after discharge,all patients still relied on insulin treatment,and no significant recovery of pancreatic islet β cell function was observed compared with that at discharge.Literature review revealed that ICI-DM was more common in PD-1 inhibitor users,with clinical mainly manifested as diabetic ketoacidosis(DKA)(65.4%)and diabetic ketosis(13.1%).Patients had severely impaired pancreatic islet function and required long-term insulin treatment,and some cases were complicated by thyroid or pituitary dysfunction.Conclusions ICI-DM typically presents as FT1DM,often manifesting with DKA or diabetic ketosis at onset.It is characterized by severe and irreversible loss of pancreatic islet function,necessitating lifelong insulin therapy.To enable early detection and prompt treatment,close monitoring of blood glucose is essential during ICI treatment.
7.Synthesis and antibacterial activity evaluation of octapeptin derivatives
He-xian YANG ; A-long CUI ; Yong-jian WANG ; Shi-bo KOU ; Miao LÜ ; Hong YI ; Zhuo-rong LI
Acta Pharmaceutica Sinica 2024;59(1):152-160
Octapeptin has strong antibacterial activity against Gram-negative bacteria such as
8.Analysis of Population Characteristics and Influencing Factors of Long-Term Prognosis of Diarrhea-Predominant Irritable Bowel Syndrome
En-Jian XIE ; Ying-Jing XU ; Xian LIU ; Yao-Min ZHANG ; Shi-Long LYU ; Ying-Nan YAN ; Xue-Bao ZHENG
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(10):2672-2678
Objective To investigate the population characteristics,distribution of traditional Chinese medicine(TCM)syndromes and influencing factors of long-term prognosis of diarrhea-predominant irritable bowel syndrome(IBS-D),and to provide evidence for the formulation of intervention program for IBS-D patients.Methods A total of 124 patients with IBS-D admitted to the medical institutions of the project team members from July 2020 to August 2022 were selected.According to the scoring results of IBS Quality of Life Measure(IBS-QOL),the patients were divided into the good prognosis group(81 cases)and the poor prognosis group(43 cases).The distribution of TCM syndromes in patients with IBS-D was explored,and the difference of IBS-QOL scores of the patients between good prognosis group and poor prognosis group was compared.Univariate logistic regression analysis and multivariate logistic regression analysis were used to determine the main risk factors for poor prognosis in patients with IBS-D.Results(1)The analysis of population characteristics showed that there was no significant difference in the proportion of male and female patients with IBS-D.The patients with IBS-D were usually middle-aged,and had a large interval span of the course of disease.The severity of their symptoms was mostly moderate.All of the patients with IBS-D had various degrees of anxiety and depression,and had nutritional imbalance.(2)The distribution of TCM syndromes in the patients with IBS-D were shown as the following:78 cases were identified as liver depression and spleen deficiency type,accounting for 62.90%;26 cases were identified as spleen-qi deficiency type,accounting for 20.97%;20 cases were identified as spleen and kidney yang deficiency type,accounting for 16.13%.(3)Analysis of IBS-QOL score showed that compared with the good prognosis group,the items scores of negative emotion,physical function,behavioral disorder,health status,being fastidious about food,social function,sexual behavior and interpersonal relationship of IBS-QOL in the poor prognosis group were significantly lowered(P<0.01).(4)The univariate analysis showed that the risk of poor prognosis in patients with IBS-D would be increased by the factors of age,education level,course of disease,severity of symptoms,anxiety state,depression state,TCM syndrome types,Acute Physiology and Chronic Health Evaluation scoring system Ⅱ(APACHE 11)score,complication of neurological diseases,hemoglobin level,albumin level and total protein level(P<0.01).(5)The multivariate Logistic regression analysis showed that the risk factors for poor prognosis of IBS-D patients involved age,education level below junior high school,the severity of symptoms being severe,Self-Rating Anxiety Scale(SAS)score,Self-Rating Depression Scale(SDS)score,TCM syndrome being liver depression and spleen deficiency type,hemoglobin level,albumin level and total protein level(P<0.01).Conclusion Most of IBS-D patients exert long-term poor prognosis,and their long-term prognosis is affected by the factors of age,education level,severity of symptoms,anxiety and depression state,nutritional imbalance and TCM syndrome being liver depression and spleen deficiency type.The identification of the risk factors of poor prognosis will provide evidence for the formulation and adjustment of clinical intervention programs.
9.Risk factors for bronchopulmonary dysplasia in twin preterm infants:a multicenter study
Yu-Wei FAN ; Yi-Jia ZHANG ; He-Mei WEN ; Hong YAN ; Wei SHEN ; Yue-Qin DING ; Yun-Feng LONG ; Zhi-Gang ZHANG ; Gui-Fang LI ; Hong JIANG ; Hong-Ping RAO ; Jian-Wu QIU ; Xian WEI ; Ya-Yu ZHANG ; Ji-Bin ZENG ; Chang-Liang ZHAO ; Wei-Peng XU ; Fan WANG ; Li YUAN ; Xiu-Fang YANG ; Wei LI ; Ni-Yang LIN ; Qian CHEN ; Chang-Shun XIA ; Xin-Qi ZHONG ; Qi-Liang CUI
Chinese Journal of Contemporary Pediatrics 2024;26(6):611-618
Objective To investigate the risk factors for bronchopulmonary dysplasia(BPD)in twin preterm infants with a gestational age of<34 weeks,and to provide a basis for early identification of BPD in twin preterm infants in clinical practice.Methods A retrospective analysis was performed for the twin preterm infants with a gestational age of<34 weeks who were admitted to 22 hospitals nationwide from January 2018 to December 2020.According to their conditions,they were divided into group A(both twins had BPD),group B(only one twin had BPD),and group C(neither twin had BPD).The risk factors for BPD in twin preterm infants were analyzed.Further analysis was conducted on group B to investigate the postnatal risk factors for BPD within twins.Results A total of 904 pairs of twins with a gestational age of<34 weeks were included in this study.The multivariate logistic regression analysis showed that compared with group C,birth weight discordance of>25%between the twins was an independent risk factor for BPD in one of the twins(OR=3.370,95%CI:1.500-7.568,P<0.05),and high gestational age at birth was a protective factor against BPD(P<0.05).The conditional logistic regression analysis of group B showed that small-for-gestational-age(SGA)birth was an independent risk factor for BPD in individual twins(OR=5.017,95%CI:1.040-24.190,P<0.05).Conclusions The development of BPD in twin preterm infants is associated with gestational age,birth weight discordance between the twins,and SGA birth.
10.Effects of hypoxia on the formation of traumatic brain swelling in rats with acute subdural hematoma
Liang XIAN ; Li CHEN ; Long LIN ; Dan YE ; Liangfeng WEI ; Shousen WANG
Chinese Journal of Trauma 2024;40(9):826-836
Objective:To explore the effects of hypoxia on traumatic brain swelling (TBS) in rats with acute subdural hematoma (ASDH).Methods:Forty-five SD rats were divided into 5 groups according to the random number table method, with 9 rats in each group: sham surgery normal oxygen group which underwent sham surgical procedures and were placed in a closed container with ventilation, sham surgery hypoxia group which underwent sham surgical procedures and were placed in a closed container with oxygen volume fraction of 8% for hypoxia induction, ASDH normal oxygen group which made into the ASDH model and placed in a closed container with ventilation, ASDH hypoxia group were made into the ASDH models and placed in a closed container with oxygen volume fraction of 8% for hypoxia induction, and ASDH hypoxia+oxygen inhalation group which inhaled oxygen continuously with oxygen volume fraction of 40% after being made into the ASDH models and induced for hypoxia. Six rats were selected from each group immediately after the modeling and craniotomy was performed to observe the brain swelling during the surgery and evaluate the degree of TBS. Microvascular blood flow was observed by laser speckle imaging system before modeling, before craniotomy, and immediately after craniotomy. The remaining 3 rats in each group were killed directly after modeling and brain tissue specimens were collected. The expression levels of pericellular protein α-smooth muscle actin (α-SMA) and platelet-derived growth factor receptor-β (PDGFR-β) at 0, 30 and 60 minutes after modeling were detected through Western blot analysis. The expression levels of α-SMA, PDGFR-β and microvascular marker platelet-endothelial cell adhesion molecule 31 (CD31) at 0 minute after modeling were tested through immunofluorescent staining.Results:No brain bulge was observed in the sham surgery normal oxygen group. The height of brain bulge in sham surgery hypoxia group was 0.5(0.0, 1.0)mm, with no significant difference from that in the sham surgery normal oxygen group ( P>0.05); it was 2.2(2, 2.5)mm in the ASDH normal oxygen group, significantly higher than that in the sham surgery normal oxygen group and sham surgery hypoxia group ( P<0.01), it was 3.1(2.9, 3.2)mm in the ASDH hypoxia group, significantly higher than that in the sham surgery normal oxygen group, sham surgery hypoxia group and ASDH normal oxygen group ( P<0.01); it was 2.8(2.7, 2.9)mm in the ASDH hypoxia+oxygen inhalation group, not statistically different from that in the ASDH hypoxia group ( P>0.05), but significantly increased compared with that in the sham surgery normal oxygen group, sham surgery hypoxia group and ASDH normal oxygen group ( P<0.01). Before modeling, before craniotomy and after craniotomy, the microvascular blood flow was 224.2±49.7, 224.8±50.3, 225.1±50.3 respectively in the sham surgery normal oxygen group and 224.7±43.7, 220.9±45.9, 221.8±45.5 respectively in the sham surgery hypoxia group, with no significant difference between the two groups ( P>0.05); it was 226.5±52.7, 173.4±40.7, 172.0±40.7 respectively in the ASDH normal oxygen group, significantly decreased compared with that in the sham surgery normal oxygen group and sham surgery hypoxia group ( P<0.05); it was 225.7±46.4, 131.4±23.6 and 131.0±23.5 respectively in the ASDH hypoxia group, significantly decreased compared with that in the sham surgery normal oxygen group, sham surgery hypoxia group and ASDH normal oxygen group ( P<0.05); it was 226.2±56.1, 132.6±21.7 and 131.7±21.9 respectively in ASDH hypoxia+oxygen inhalation group, significantly decreased compared with that in the sham surgery normal oxygen group, sham surgery hypoxia group and ASDH normal oxygen group ( P<0.05), with no significant difference from that in the ASDH hypoxia group ( P>0.05). At 0, 30 and 60 minutes after modeling, the expression levels of α-SMA and PDGFR-β were 0.70±0.02, 0.67±0.01, 0.55±0.05 and 0.65±0.03, 0.56±0.03 and 0.59±0.02 respectively in the sham surgery normal oxygen group and were 0.63±0.04, 0.60±0.01 0.55±0.05 and 0.62±0.01, 0.51±0.01 and 0.60±0.02 respectively in the sham surgery hypoxia group, with no significant difference between the two groups ( P>0.05); they were 0.88±0.06, 0.87±0.05, 0.82±0.03 and 0.85±0.03, 0.85±0.03, 0.88±0.04 respectively in the ASDH normal oxygen group, significantly higher than those in the sham surgery normal oxygen group and sham surgery hypoxia group ( P<0.01); they were 1.19±0.08, 1.10±0.10, 0.97±0.04 and 1.04±0.06, 1.19±0.07, 1.27±0.08 respectively in the ASDH hypoxia group, significantly higher than those in sham surgery normal oxygen group, sham surgery hypoxia group and ASDH normal oxygen group ( P<0.05 or 0.01); they were 1.20±0.07, 1.10±0.04, 0.96±0.04 and 1.04±0.05, 1.15±0.11, 1.20±0.07 respectively in ASDH hypoxia+oxygen inhalation group, significantly higher than those in sham surgery normal oxygen group, sham surgery normal group and ASDH normal oxygen group ( P<0.01), but with no significant difference from those in ASDH hypoxia group ( P>0.05). At 0 minute after modeling, the fluorescence expression of α-SMA and PDGFR-β was weaker in the sham surgery normal oxygen group and the fluorescence expression of CD31 was stronger. There was no significant difference in the fluorescence expressions of α-SMA, PDGFR-β and CD31 between the sham surgery hypoxia group and sham surgery normal oxygen group. The fluorescence expressions of α-SMA and PDGFR-β in the ASDH normal oxygen group were stronger than those in the sham surgery normal oxygen group and sham surgery hypoxia group, while the fluorescence expression of CD31 was weaker. The fluorescence expressions of α-SMA and PDGFR-β in ASDH hypoxia group were stronger than those in the sham surgery normal oxygen group, sham surgery hypoxia group and ASDH normal oxygen group, while the fluorescence expression of CD31 was weaker. The fluorescence expressions of α-SMA and PDGFR-β in the ASDH hypoxia+oxygen inhalation group were stronger than those in the sham surgery normal oxygen group, sham surgery hypoxia group and ASDH normal oxygen group, while the fluorescence expression of CD31 was weaker, with no significant difference from the fluorescence expressions of α-SMA, PDGFR-β and CD31 in ASDH hypoxia group. Conclusions:Hypoxia in ASDH rats will stimulate pericytes contraction, which causes cerebral microcirculatory disturbance, thus leading to TBS. Short-term inhalation of oxygen of medium concentration cannot dilate pericytes or microcirculation vessels, with no obvious effect on improving the conditions of TBS.

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