1.Expression of NFAT5 and IGF1R in nasopharyngeal carcinoma tissues and analysis of clinical characteristics.
Jie YANG ; Qing WANG ; Fusheng LIN ; Lin GAO ; Ran ZHANG ; Xingqian ZHAO ; Xiaojiang LI
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2025;39(4):333-343
Objective:To investigate the expression of NFAT5 and IGF1R in nasopharyngeal carcinoma tissues and analyze their expression levels in relation to clinical features and prognosis. Methods:From January 1, 2019, to December 31, 2019, 69 cases of nasopharyngeal carcinoma tissues and adjacent non-cancerous tissues were collected from patients treated at Yunnan Cancer Hospital. Immunohistochemistry was employed to detect the expression of NFAT5 and IGF1R in nasopharyngeal carcinoma tissues. The Kaplan-Meier method was used to predict survival time, and the clinicopathological features were evaluated using the log-Rank test. Results:The positive expression rates of NFAT5 and IGF1R in nasopharyngeal carcinoma tissues were 87.0% and 84.5%, respectively. Compared to adjacent normal tissues, the expression levels of NFAT5 and IGF1R in nasopharyngeal carcinoma tissues were significantly increased (P<0.05). Furthermore, the expression of NFAT5 and IGF1R was positively correlated with T stage, N stage, skull base invasion, and cranial nerve palsy (P<0.05). The overexpression of NFAT5 and IGF1R significantly affected the survival rate of patients with nasopharyngeal carcinoma and was negatively correlated with prognosis (P<0.05). Conclusion:In nasopharyngeal carcinoma tissues, overexpression of NFAT5 and IGF1R is observed, which is closely linked to clinical features and patient outcomes. These markers may serve as valuable indicators for predicting the prognosis of nasopharyngeal carcinoma.
Humans
;
Nasopharyngeal Carcinoma/pathology*
;
Nasopharyngeal Neoplasms/metabolism*
;
Prognosis
;
Female
;
Receptor, IGF Type 1/metabolism*
;
Male
;
Transcription Factors/metabolism*
;
Middle Aged
;
Survival Rate
;
Adult
;
Neoplasm Staging
2.Clinical characteristics and prognosis analysis of 108 cases of recurrent nasopharyngeal carcinoma from a single center.
Qing WANG ; Fusheng LIN ; Ran ZHANG ; Lin GAO ; Xingqian ZHAO ; Jie YANG ; Xiaojiang LI
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2025;39(8):743-748
Objective:Retrospective analysis of the correlation between clinicopathologic features and related indexes and prognosis in patients with recurrent nasopharyngeal carcinoma. Methods:One hundred and eight nasopharyngeal cancer(NPC) patients with post-treatment recurrence in Yunnan Cancer Hospital from January 2013 to January 2018 were collected, and the survival time was estimated by Kaplan-Meier method, and clinicopathological characteristics were analyzed by log-rank test; risk factors and prognosis were analyzed by Cox proportional risk model for single-factor and multifactorial analysis. A P-value <0.05 was considered statistically significant. Results:The median survival of all patients was 54 months, with a 3-year survival rate of 80.2% and a 5-year survival rate of 39.8%. The 5-year overall survival rate was 50.2% for patients >46 years old and 27.9% for patients ≤46 years old(P<0.05), a statistically significant difference. Univariate analysis showed that overall survival was associated with age, chemotherapy regimen, EBV early antigen IgA, plasma D-dimer, glycan antigen-125, γ-interferon, α-tumor necrosis factor, IL-10, and IL-4(P<0.05). Multifactorial analysis revealed that age, chemotherapy regimen, EBV early antigen IgA, plasma D-dimer, glycan antigen-125, and interleukin 10 were independent influences on the prognosis of recurrent nasopharyngeal carcinoma(P<0.05). Conclusion:Differences in chemotherapy regimens affect the prognosis of recurrent nasopharyngeal carcinoma. Elevated plasma D-dimer, glycan antigen 125, and interleukin 10 levels affect the overall survival of recurrent nasopharyngeal carcinoma, which may be a valid independent prognostic factor, and are expected to provide new biomarkers for nasopharyngeal carcinoma in the clinic.
Humans
;
Prognosis
;
Nasopharyngeal Neoplasms/mortality*
;
Nasopharyngeal Carcinoma
;
Retrospective Studies
;
Neoplasm Recurrence, Local
;
Male
;
Middle Aged
;
Female
;
Survival Rate
;
Adult
;
Risk Factors
;
Interleukin-10/blood*
;
Aged
;
Proportional Hazards Models
3.Herbal Textual Research on Pyrrosiae Folium in Famous Classical Formulas
Dabang REN ; Jie DAI ; Mingjuan JIN ; Jiaorui WANG ; Zhilai ZHAN ; Fusheng ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(17):172-184
This article systematically analyzes the historical evolution of the name, origin, producing area, quality evaluation, harvesting and processing, clinical efficacy of Pyrrosiae Folium by consulting the ancient materia medica, medical books and prescription books, combined with modern literature, in order to provide a reference for the development of famous classical formulas containing this herb. After herbal textual research, it was found that the names of Pyrrosiae Folium in the past dynasties were mostly derived from its color, shape and efficacy. And there were other nicknames such as Shizhe, Shipi and Shilan. Song, Yuan dynasties and before the period, the main origin of Pyrrosiae Folium was Pyrrosia petiolosa, in the Ming dynasty, the main origins were P. petiolosa and P. sheareri, during the Qing dynasty to the present, the main origins were P. sheareri, P. petiolosa and P. lingua. Anciently, the respected Dao-di production area of Pyrrosiae Folium was the area of Lianyungang city, Jiangsu province. In modern times, Anhui and Zhejiang provinces are the main producing areas of P. sheareri, Fujian and Taiwan provinces are the main producing areas of P. lingua, and Guizhou and Hubei provinces are the main producing areas of P. petiolosa. In ancient and modern times, Pyrrosiae Folium with large leaves and thick texture is considered to be the best, the medicinal part is the leaves, and the harvesting and processing methods recorded in the past dynasties were mainly shade-drying after harvesting in the February and July of the lunar calendar, while the modern ones are mostly harvested throughout the year. The processing methods of the past dynasties mainly included removing fuzz by scraping, lightly roasted, frying, fat-fried. However, in modern times, it is mostly used the raw products as a medicine after cleaning, cutting and drying. In ancient times, Pyrrosiae Folium was thought to have a neutral nature with slightly sweet and bitter taste, while in modern times, it is thought to have a slightly cold nature with slightly sweet and bitter taste, and the main effects in ancient and modern times are diuretic, clearing lung-heat, hemostasis and so on. Based on the research results, it is suggested that P. sheareri, P. petiolosa and P. lingua can be used as the medicinal base, processing method can be according to the requirements of formulas, and if the processing requirements are not indicated, the raw products can be selected as the medicine.
4.Herbal Textual Research on Equiseti Hiemalis Herba in Famous Classical Formulas
Dabang REN ; Mingjuan JIN ; Jie DAI ; Jiaorui WANG ; Zhilai ZHAN ; Fusheng ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(13):167-175
In this paper, the name, origin, medicinal parts, producing area, harvesting, processing methods and efficacy of Equiseti Hiemalis Herba(EHH) in famous classical formulas were examined by reviewing related ancient and modern literature. Through textual research, Muzei was first appeared in Zhenyuan Guanglifang(《贞元广利方》), and used as a mainstream name by later generations. It is also known by other names, such as Cuocao and Bigancao. The main origin of ancient EHH was Equisetum hyemale, which was mixed with E. ramosissimum during the Qing dynasty. The medicinal part was the above-ground part of EHH. In ancient times, the genuine producing area was considered to be Qinzhou, which is now Tianshui city, Gansu. In modern times, EHH produced in Liaoning province is believed to be of higher quality. Currently, the main producing area of EHH circulating in the market is the northeast region in China. EHH with stems that are thick and long, a green color, a thick texture, and clearly visible edges and roughness, but without any easily separating joints being considered the best. The processing methods of the past dynasties mainly included filing, removing knots, stir-baked the crude drugs into black on outside and brown in inside, urine soaking, sun drying and shade drying. In modern times, the main processing method is to first moisturize the plant material, and then cut it into sections before drying. In terms of medicinal properties, EHH is considered by both ancient and modern medicine to have a neutral nature, a slightly sweet and bitter taste, and is non-toxic. Its primary therapeutic effects are related to treating eye diseases, intestinal wind bleeding and uterine bleeding. Based on the research, it is suggested that the dried above-ground part of E. hiemale be used in the development and utilization of famous classical formulas. For the processing requirements are not indicated, it is suggested using raw decoction pieces as medicine, and the processing method refers to the 2020 edition of Chinese Pharmacopoeia. If it is clearly stated that fried charcoal is required, it is recommended to refer to general requirements 0213 of the 2020 edition of Chinese Pharmacopoeia, if it is clearly stated that removing knots is required, it is recommended to follow the ancient method.
5.Quantitative CT measurement of bone mass density in different regions of the distal clavicle in reconstruction of acromioclavicular joint dislocation
Jian XU ; Wenzhi BI ; Yuncong JI ; Yunkang KANG ; Peiqi MA ; Jialiang WANG ; Zongxi ZHANG ; Fusheng GAN ; Haiyang YU ; Biao GUO
Chinese Journal of Tissue Engineering Research 2024;28(12):1920-1924
BACKGROUND:There is no consensus on the optimal bone tunnel position in the lateral clavicle,which guides coracoclavicular ligament reconstruction.Postoperative complications such as enlargement of the lateral clavicle bone tunnel,bone osteolysis,clavicle fracture,and failure of internal fixation are likely to occur.Bone mass density plays an important role in the strength and stability of endophytic fixation.Regional differences in the bone mass density of the distal clavicle should not be overlooked in the repair and reconstruction of acromioclavicular dislocation.Currently,there are no quantitative clinical studies in humans regarding the bone mass density of the distal clavicle. OBJECTIVE:To measure the magnitude of bone mass density in different regions of the distal clavicle by quantitative CT to provide a reference for surgeons to repair and reconstruct the coracoclavicular ligament. METHODS:101 patients undergoing quantitative CT checking in Fuyang People's Hospital Affiliated to Anhui Medical University from October to December 2022 were enrolled,from which 1 616 samples of subdivisional bone mass density of the distal clavicle were measured.For each of the quantitative CT samples,firstly,the distal clavicle was divided medially to laterally into the following four regions:conical nodal region(region A),inter-nodal region(region B),oblique crest region(region C)and distal clavicular region(region D).Secondly,each region was divided into the first half and the second half to determine eight subdivisions,then setting semiautomatic region of interest(ROI)in each subdivision:(ROI A1,A2,B1,B2,C1,C2,D1,and D2).Thirdly,each quantitative CT scan was transferred to the quantitative CT pro analysis workstation,and cancellous bone mass density was measured in the distal clavicle ROI.Finally,the clavicular cortex was avoided when measuring. RESULTS AND CONCLUSION:(1)There was no statistically significant difference in bone mineral density on the different sides of the shoulder(P>0.05).(2)The analysis of bone mineral density in eight sub-areas of the distal clavicle A1,A2,B1,B2,C1,C2,D1,and D2 showed statistically significant differences(P<0.05).It could be considered that there were differences in bone mineral density in different areas of the distal clavicle.After pairwise comparison,there was no statistically significant difference in bone mineral density between A1 and A2,D1 and D2,A2 and B1(P>0.05),and there was a statistically significant difference in bone mineral density between the other sub-areas(P<0.05).(3)The bone mineral density in the region A2 of the anatomical insertion of the conical ligament was significantly higher than that in the inter-nodular area(region B)(P<0.05).The bone mineral density in the region A1 was higher than that in the region A2,but the difference was not statistically significant(P>0.05).The bone mineral density in the region C1 of the anatomical insertion of the trapezium ligament was higher than that in regions C2,D1 and D2,and the bone mineral density in the inter-nodular area(region B)was significantly higher than that in regions C and D(P<0.05).(4)These results have suggested that there are differences in bone mass density in different regions of the distal clavicle;regional differences in bone mass density in the distal clavicle during repair and reconstruction of acromioclavicular dislocation cannot be ignored.Consideration should be given not only to biomechanical factors but also to the placement of implants or bone tunnels in regions of higher bone mass density,which could improve the strength and stability of implant fixation and reduce the risk of complications such as bone tunnel enlargement,osteolysis,fracture and implant failure.
6.Mechanism of Shenshuai Xiezhuo Decoction in Intervention of Chronic Kidney Disease Combined with Atherosclerosis Based on Regulation of PI3K/Akt/mTOR Signaling Pathway by miRNA126
Gengxin LIU ; Gedi ZHANG ; Wenqi YUAN ; Fusheng LI ; Min GUO ; Fuli LUO ; Ziyou YAN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(9):48-55
ObjectiveExploring the role of microRNA126 (miRNA126) in chronic kidney disease combined with atherosclerosis (CKD AS) by regulating the phosphatidylinositol-3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR) signaling pathway and the mechanism of Shenshuai Xiezhuo decoction in the intervention of CKD AS rats with 5/6 nephrectomy combined with high-fat feeding. MethodA total of 60 SD rats were randomly divided into sham operation group, model group, losartan group, and low, medium, and high dose groups of Shenshuai Xiezhuo decoction. The CKD AS rat model was established by 5/6 nephrectomy combined with high-fat feeding for 10 weeks. The low, medium, and high dose groups (6.0, 12.0, 24.0 g·kg-1·d-1) of Shenshuai Xiezhuo decoction and the losartan group (20 mg·kg-1·d-1) were gavaged, and the corresponding intervention was carried out for eight weeks. Then, the rats were killed, and samples were collected for corresponding detection. Fully automated biochemical analyzers were used to detect kidney function and blood lipids in rats: blood creatinine (SCr), blood urea nitrogen (BUN), total cholesterol (TC), triglyceride (TG), and low-density lipoprotein cholesterol (LDL-C) levels. Hematoxylin-eosin (HE) and Masson staining of aortic tissue and pathological observation under a light microscope were carried out, and autophagosomes and autophagy lysosomes were observed by transmission electron microscopy. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was used to determine the mRNA levels of miRNA126, PI3K, Akt, and mTOR in rats, and Western blot was used to determine the protein expression levels of phosphorylated (p)-PI3K, PI3K, p-Akt, Akt, p -mTOR, mTOR, benzyl chloride 1 (Beclin-1), and microtubule-associated protein light chain 3Ⅱ/Ⅰ (LC3Ⅱ/LC3Ⅰ). ResultCompared with the sham operation group, the serum SCr, BUN, TC, TG, and LDL-C in the model group were significantly increased (P<0.01). Compared with the model group, the SCr, BUN, TC, TG, and LDL-C were decreased in the losartan group and low, medium, and high dose groups of Shenshuai Xiezhuo decoction (P<0.05). Compared with the sham operation group, thickening plaques, infiltration of mononuclear macrophages, a small number of foam cells, disordered arrangement of smooth muscle fibers in the tunica media, and increased collagen fibers were observed in the model group, and the lesions in the losartan group and Shenshuai Xiezhuo decoction groups were alleviated compared with those in the model group. Compared with the model group, the number of autophagosomes and autophagy lysosomes increased in the medium and high dose groups of Shenshuai Xiezhuo decoction. Compared with the sham operation group, the expression of miRNA126 in the aortic tissue of the model group was significantly decreased (P<0.01), and the mRNA expressions of PI3K, Akt, and mTOR were significantly increased (P<0.01). Compared with the model group, the expression of miRNA126 in the aortic tissue of rats in high, medium, and low dose groups of Shenshuai Xiezhuo decoction and losartan group was significantly increased (P<0.01), while the mRNA expressions of PI3K, Akt, and mTOR were significantly decreased (P<0.01). Compared with the sham operation group, the protein expressions of p-PI3K, PI3K, p-Akt, Akt, p-mTOR, and mTOR in the model group were significantly increased (P<0.01), while the protein levels of Beclin-1, LC3Ⅰ, and LC3Ⅱ were significantly decreased (P<0.01). Compared with the model group, the protein expressions of p-PI3K, PI3K, p-Akt, Akt, p-mTOR, and mTOR in the losartan group and low, medium, and high dose groups of Shenshuai Xiezhuo decoction were decreased (P<0.05), while the protein levels of Beclin-1 and LC3Ⅱ/LC3Ⅰ were increased (P<0.05). ConclusionThe expression of miRNA126 is decreased in the aortic tissue of CKD AS rats, and the PI3K/Akt/mTOR pathway is activated to inhibit autophagy flux. Shenshuai Xiezhuo decoction regulates the PI3K/Akt/mTOR signaling pathway through miRNA126, restores the autophagy of aortic endothelial cells, protects the damage of CKD vessels, reduces the formation of As plaques, and slows the development of cardiovascular complications.
7.Research progress on the clinical application of HIV integrase inhibitors
Yi ZHANG ; Bing SONG ; Yanze SHI ; Minrui YU ; Xin GUO ; Mengmeng QU ; Yanmei JIAO ; Fusheng WANG
Chinese Journal of Experimental and Clinical Virology 2024;38(2):202-208
Integrase inhibitors (INSTIs) are the newest class of antiretroviral drug which are available to people living with the human immunodeficiency virus (HIV). Since 2007, five types of INSTIs have been marketed: Raltegravir, Elvitegravir, Dolutegravir, Bictegravir and Cabotegravir, all of which were approved by the US Food and Drug Administration (FDA) for use in the initiation of antiretroviral therapy (ART) in treatment-na?ve individuals. Compared with other types of antiretroviral drugs, INSTIs have better efficacy and tolerability, so many countries around the world have listed INSTIs-containing regimens as the preferred regimen for HIV ART. In recent years, with the widespread use of INSTIs, some research data suggest that INSTIs may have some adverse effects (AEs), such as central nervous system symptoms, abnormal lipid metabolism, weight gain, abnormal liver and kidney function, etc. This review summarizes the current use of INSTIs in people living with the HIV, and highlights the clinical efficacy and their AEs among the five types of INSTIs in China.
8.Clinical research progress of lusutrombopag for the treatment of thrombocytopenia in chronic liver disease
Zheng XU ; Jiyuan ZHANG ; Fusheng WANG
Chinese Journal of Hepatology 2024;32(10):943-947
Thrombocytopenia is one of the common complications with the hematologic system in patients with chronic liver disease, which often causes poor quality of life and high risk of bleeding, thereby affecting their diagnosis, treatment, and prognosis. Platelet transfusion can improve the patient's declining platelet count to a certain extent, but it has problems such as high price and being easy to cause immune rejection. Thrombopoietin (TPO), as an important cytokine that affects platelet production, can bind to TPO receptors and activate megakaryocytes to produce platelets. Lusutrombopag is a newly developed small-molecule TPO receptor agonist that can induce bone marrow progenitor cells to differentiate into megakaryocytes and increase platelet production, posing characteristics of oral convenience, safety and effectiveness; thus, it has been used in many countries and regions for the treatment of patients with chronic liver diseases concurrent with thrombocytopenia. Herein, the pharmacological features and clinical research are reviewed.
9.Diagnostic value of a combined serology-based model for minimal hepatic encephalopathy in patients with compensated cirrhosis
Shanghao LIU ; Hongmei ZU ; Yan HUANG ; Xiaoqing GUO ; Huiling XIANG ; Tong DANG ; Xiaoyan LI ; Zhaolan YAN ; Yajing LI ; Fei LIU ; Jia SUN ; Ruixin SONG ; Junqing YAN ; Qing YE ; Jing WANG ; Xianmei MENG ; Haiying WANG ; Zhenyu JIANG ; Lei HUANG ; Fanping MENG ; Guo ZHANG ; Wenjuan WANG ; Shaoqi YANG ; Shengjuan HU ; Jigang RUAN ; Chuang LEI ; Qinghai WANG ; Hongling TIAN ; Qi ZHENG ; Yiling LI ; Ningning WANG ; Huipeng CUI ; Yanmeng WANG ; Zhangshu QU ; Min YUAN ; Yijun LIU ; Ying CHEN ; Yuxiang XIA ; Yayuan LIU ; Ying LIU ; Suxuan QU ; Hong TAO ; Ruichun SHI ; Xiaoting YANG ; Dan JIN ; Dan SU ; Yongfeng YANG ; Wei YE ; Na LIU ; Rongyu TANG ; Quan ZHANG ; Qin LIU ; Gaoliang ZOU ; Ziyue LI ; Caiyan ZHAO ; Qian ZHAO ; Qingge ZHANG ; Huafang GAO ; Tao MENG ; Jie LI ; Weihua WU ; Jian WANG ; Chuanlong YANG ; Hui LYU ; Chuan LIU ; Fusheng WANG ; Junliang FU ; Xiaolong QI
Chinese Journal of Laboratory Medicine 2023;46(1):52-61
Objective:To investigate the diagnostic accuracy of serological indicators and evaluate the diagnostic value of a new established combined serological model on identifying the minimal hepatic encephalopathy (MHE) in patients with compensated cirrhosis.Methods:This prospective multicenter study enrolled 263 compensated cirrhotic patients from 23 hospitals in 15 provinces, autonomous regions and municipalities of China between October 2021 and August 2022. Clinical data and laboratory test results were collected, and the model for end-stage liver disease (MELD) score was calculated. Ammonia level was corrected to the upper limit of normal (AMM-ULN) by the baseline blood ammonia measurements/upper limit of the normal reference value. MHE was diagnosed by combined abnormal number connection test-A and abnormal digit symbol test as suggested by Guidelines on the management of hepatic encephalopathy in cirrhosis. The patients were randomly divided (7∶3) into training set ( n=185) and validation set ( n=78) based on caret package of R language. Logistic regression was used to establish a combined model of MHE diagnosis. The diagnostic performance was evaluated by the area under the curve (AUC) of receiver operating characteristic curve, Hosmer-Lemeshow test and calibration curve. The internal verification was carried out by the Bootstrap method ( n=200). AUC comparisons were achieved using the Delong test. Results:In the training set, prevalence of MHE was 37.8% (70/185). There were statistically significant differences in AMM-ULN, albumin, platelet, alkaline phosphatase, international normalized ratio, MELD score and education between non-MHE group and MHE group (all P<0.05). Multivariate Logistic regression analysis showed that AMM-ULN [odds ratio ( OR)=1.78, 95% confidence interval ( CI) 1.05-3.14, P=0.038] and MELD score ( OR=1.11, 95% CI 1.04-1.20, P=0.002) were independent risk factors for MHE, and the AUC for predicting MHE were 0.663, 0.625, respectively. Compared with the use of blood AMM-ULN and MELD score alone, the AUC of the combined model of AMM-ULN, MELD score and education exhibited better predictive performance in determining the presence of MHE was 0.755, the specificity and sensitivity was 85.2% and 55.7%, respectively. Hosmer-Lemeshow test and calibration curve showed that the model had good calibration ( P=0.733). The AUC for internal validation of the combined model for diagnosing MHE was 0.752. In the validation set, the AUC of the combined model for diagnosing MHE was 0.794, and Hosmer-Lemeshow test showed good calibration ( P=0.841). Conclusion:Use of the combined model including AMM-ULN, MELD score and education could improve the predictive efficiency of MHE among patients with compensated cirrhosis.
10.Effects of hydrogen sulfide on autophagy and angiogenesis of skin wound in diabetic rats
Yuanyuan LI ; Fusheng ZHAO ; Kexin ZHANG ; Yonglan CHEN ; Na ZHANG ; Xinyue JIANG ; Chunfu GU ; Geng WU
Chinese Journal of Pathophysiology 2023;39(12):2223-2233
AIM:To explore the effect and mechanism of hydrogen sulfide(H2S)on autophagy and angiogene-sis in skin wound of diabetic rats.METHODS:Among 36 healthy 8-week-old male Sprague-Dawley rats,12 rats were se-lected as control group,and the remaining rats were intraperitoneally injected with streptozotocin(STZ)to induce diabetic model and were randomly divided into diabetes mellitus(DM)group and NaHS(H2S donor)intervention(DM+NaHS)group,with 12 rats in each group.A skin trauma model was established by excising the skin of the back of rats in each group.The rats in DM+NaHS group were intraperitoneally injected with NaHS(56 μmol/kg),and the rats in control and DM groups were daily received the same volume of normal saline for 21 consecutive days.The healing of skin wound was measured on days 0,7,14 and 21 after operation.On the 21st day after surgery,the content of H2S in skin tissues was de-tected by C-7Az fluorescent probe,and the morphological changes and angiogenesis of wound tissues were observed by HE staining.The expression of CD31 was detected by immunofluorescence staining,and endothelial autophagy was detected by double staining of CD31 and beclin-1.The protein levels of cystathionine γ-lyase(CSE),CD31,microtubule-associated protein 1 light chain 3(LC3),beclin-1,P62,Bcl-2,Bax,phosphatidylinositol 3-kinase(PI3K),protein kinase B(PKB/Akt)and mammalian target of rapamycin(mTOR)in wound tissues were determined by Western blot.Caspase-3 and propidium iodide(PI)staining was used to detect cell apoptosis,and apoptosis of vascular endothelial cells was deter-mined with CD31 and TUNEL double immunofluorescence staining.RESULTS:Compared with DM group,the wound healing rate,H2S content and CSE protein expression were significantly increased in DM+NaHS group(P<0.01),but still lower than those in control group(P<0.01).HE staining showed that the wound surface in DM group was thin and wide,with few capillary,while that in DM+NaHS group was thicker with lots of capillary and wound width was reduced.Com-pared with DM group,CD31 expression was markedly increased(P<0.01),the fluorescence intensity of caspase-3 and PI was significantly decreased(P<0.01),and CD31+/beclin-1+ as well as CD31+/TUNEL+ cells were decreased(P<0.01)in DM+NaHS group.Western blot analysis showed that compared with DM group,the levels of beclin-1,Bax and LC3-Ⅱ/LC3-Ⅰ were significantly decreased(P<0.01),while the levels of P62 and Bcl-2,as well as ratios of p-PI3K/PI3K,p-Akt/Akt and p-mTOR/mTOR were significantly increased(P<0.01)in DM+NaHS group.CONCLUSION:H2S can promote skin wound healing,which may be related to activation of PI3K/Akt/mTOR signaling pathway,inhibition of endothelial au-tophagy and apoptosis,and promotion of angiogenesis in diabetic rats.

Result Analysis
Print
Save
E-mail