1.Expression and significance of nuclear factor-κB-related proteins in idiopathic orbital inflammatory pseudotumor
Linqi, YANG ; Pengxiang, ZHAO ; Yanan, WU ; Xujuan, ZHANG ; Lei, SHANG ; Mengyu, LIU ; Xiao, LIU ; Jianmin, MA ; Xuemei, MA
Chinese Journal of Experimental Ophthalmology 2017;35(9):786-791
Background Idiopathic orbital inflammatory pseudotumor (IOIP) is a commom orbital disease,with serious eye symptoms and replase tendency,and its pathogenesis is still unclear.Nuclear factor-κB (NF-κB)-related proteins participate in many important pathophysiological process,however,whether NF-κB plays a role in the IOIP process is worthy of attention.Objective This study was to explore the roles of NF-κB pathway in IOIP pathogenesis.Methods Twenty-four IOIP specimens were collected during surgery in Beijing Tongren Hospital from September 2010 to May 2016.The histopathological characteristics of IOIP were examined by hematoxylin and eosin staining.The expression and location of NF-κB/p65,p-p65,p50 and inhibitor of κB (IκB-ot) were detected by immunohistochemistry and verified by immunocytochemistry and Western blot assay.Results The histopathological features of IOIP were numerous small lymphocyte infiltraion and fibrous tissue proliferation,and a lot of epithelioid cells were seen in lacrimal gland-involved specimens.NF-κB/p65 was positively expressed in the cytoplasm of all 24 specimens and the nucleus in 15 specimens with the expressing rate of 62.5%.p50 was expressed in the cytoplasm in 22 specimens with the expressing rate of 91.7% and in the nucleus in 17 specimens with the expressing rate of 70.8%.The positive expression of p-p65 was found in 22 specimens with the expressing rate of 91.7%,and IκB-α was expressed in the cytoplasm of 11 specimens with the expressing rate of 45.8%.These results were confirmed by immunocytochemistry and Western blot assay.Conclusions NF-κB pathway is activiated during IOIP process,and NF-κB pathway may be involved in the pathogenesis of IOIP.
2.Research Progress of Anti-cancer Strategies Based on ERK1/2 Post-translational Modification and Spatial Regulation
Ting GUO ; Mengyu SHANG ; Yin GUO ; Weiren HUANG
Cancer Research on Prevention and Treatment 2024;51(6):475-483
ERK1/2 is a key protein that mediates cell signal transduction,and it is involved in regulating biological processes such as chromatin remodeling,nuclear disintegration,proliferation,survival,metabolism,and cell migration and differentiation.Its overactivation is closely related to the occurrence and progression of cancer,and the mechanism is manifested as the overactivation of ERK1/2 by gene mutations of upstream pathway molecules or regulators and the reactivation of ERK1/2 after inhibition against the above targets.ERK1/2 is a potentially valuable target.In this review,the mechanism of post-translational modification and spatial regulation of ERK1/2 and the application status of corresponding small-molecule inhibitors were discussed.The current antitumor strategy of targeting and regulating ERK1/2 was summarized,and the possibility of exploring potential targets was elucidated,thus providing new insights into the developmental research of ERK1/2 as an ideal anticancer target.
3.Research progress of Traditional Chinese Medicine for the treatment of rhythm disorder of blood pressure
Shiwen ZHANG ; Haitao SHANG ; Xinxin PANG ; Chenhui WANG ; Mengyu LI ; Zhentao WANG ; Shuangqin CHEN
International Journal of Traditional Chinese Medicine 2023;45(3):376-380
Normal human blood pressure has a unique "dipper type" rhythm, but various pathological factors will lead to abnormal nighttime blood pressure decline, seriously damage the target organs such as the heart, brain and kidneys, and significantly increase the incidence of cardiovascular events. Therefore, it is necessary to pay sufficient attention to rhythm disorder of blood pressure and intervene early. Modern Traditional Chinese Medicine (TCM) mostly understands the changes of rhythm of blood pressure from the view of the unity of nature and man, yin-yang theory and the theory of meridian flow, and study the syndrome distribution and TCM constitution law of rhythm disorder of blood pressure by combining TCM syndrome differentiation method and TCM constitution theory. TCM treatment can restore blood pressure rhythm and improve clinical symptoms and sleep quality of patients.
4.A new butterfly femoral artery compression device vs manual compression for hemostasis of femoral artery puncture point after peripheral endovascular interventions
Weilong LU ; Bing WANG ; Ying WANG ; Heng XU ; Jinxuan PAN ; Mengyu WANG ; Peng GUO ; Yanling WANG ; Wenxuan SHANG
Journal of Interventional Radiology 2019;28(3):288-292
Objective To compare the hemostatic safety and efficacy of a new butterfly femoral artery compression device (FACD) with those of manual compression (MC) in patients undergoing percutaneous peripheral endovascular interventions via femoral artery. Methods A total of 283 patients, who received percutaneous endovascular interventions via femoral artery during the period from September 2016 to December 2017, were enrolled in this study. After endovascular intervention, 167 patients received FACD to make hemostasis (FACD group), and 116 patients received MC hemostasis (MC group) . The patient's comfortableness, time used for hemostasis (min), limb immobilization time (h), and the incidence of vascular complications in both groups were analyzed. Results All 283 patients were included in analysis, the results indicated that the hemostatic success rates in FACD group and MC group were 96.4% (161/167) and 94.0% (109/116) respectively, the difference between the two groups was not statistically significant (P>0.05) . The postoperative Kolcaba Comfort Scale score of FACD group was (85.0 ±11.2) points, which was remarkably higher than (58.4±11.7) points of MC group (P<0.05), the time used for hemostasis in FACD group was (9.2 ±2.2) min, which was strikingly shorter than (18.5 ±2.9) min in MC group (P <0.05) . The limb immobilization time in FACD group was (10.4±2.4) hours, which was obviously shorter than (23.1±4.1) hours in MC group (P <0.05) . The incidence of vascular complications in FACD group was 3.6%, which was dramatically lower than 9.5% in MC group (χ2=4.206, P=0.04) . Conclusion The use of the new butterfly FACD can promptly, safely and effectively stop bleeding of femoral artery puncture site. The new butterfly FACD is superior to MC in shortening hemostatic time and limb immobilization time, in reducing incidence of vascular complications, as well as in improving patient's comfortableness degree.
5.Role of FKBP8-mediated mitophagy in repetitive eccentric exercise-induced skeletal muscle damage
Shiqiao ZHENG ; Hao DENG ; Mengyu LI ; Duo ZHANG ; Tianai YANG ; Ranggui MA ; Zhi XIA ; Huayu SHANG
Chinese Journal of Sports Medicine 2024;43(6):473-483
Objective To explore the effect of 4-week repetitive downhill treadmill running on the mi-tochondrial structure,function,and autophagy in skeletal muscle of rats,so as to analyze the role of FKBP8-mediated mitophagy in exercise-induced mitochondrial damage in their skeletal muscles.Meth-ods Thirty-two male adult Sprague-Dawley rats were randomly divided into a 2-week quiet control group(2C group,n=8),a 4-week quiet control group(4C group,n=8),a 2-week exercise group(2E group,n=8)and a 4-week exercise group(4E group,n=8).Rats in 2E and 4E groups performed dai-ly 90-minute downhill treadmill running(-16°,16 m/min)5 days a week for two and four weeks,re-spectively.Then,they rested for 24 hours and received an exhaustive exercise test.Running distance and blood lactate were measured prior to and at the time of exercise cessation.Moreover,mitochondri-al ultrastructural changes in soleus muscles were observed by using a transmission electron microscope.The protein expression of mitochondrial succinate dehydrogenase subunit B(SDHB),cytochrome C oxi-dase subunit 1(MTCO1),FK506 binding protein 8(FKBP8)and microtubule associated protein 1 light chain 3(LC3)in the soleus muscle were measured using Western blotting.Meanwhile,the co-localiza-tion of FKBP8 with LC3 and cytochrome C oxidase subunit Ⅳ(COXⅣ)with LC3,lysosomal associat-ed membrane protein 2(LAMP2)were detected by the immunofluorescence double labeling technique.Results(1)The running distance of one exhaustive exercise and the blood lactate before and after the test in 2E group were significantly higher than 2C and 4E groups(P<0.05 or P<0.01),and the run-ning distance of 4E group was significantly higher than 4C group(P<0.01).However,there was no sig-nificant difference between 4E and 4C groups in the blood lactate before and after the exhaustive exer-cise test(P>0.05).(2)In both 2E and 4E groups,significant mitochondrial swelling and accumulation under cell membrane,as well as a number of mitophagosomes and mitophagolysosomes were observed,together with a significant reduce in the number of mitochondria(P<0.05),which was more severe in 2E group than 4E group.(3)The protein expression of mitochondrial SDHB and MTCO1 in 2E and 4E groups were lower than 2C and 4C groups,respectively,with significantly greater changes of these proteins in 4E group than 2E group(P<0.05 or P<0.01).(4)The protein expression of mitochondrial FKBP8 and LC3,as well as the co-localization of FKBP8 with LC3 and COXⅣ with LC3,LAMP2 in 2E and 4E groups were higher than 2C and 4C groups,respectively,with significantly greater changes in 4E group than 2E group(P<0.05 or P<0.01).Conclusion After 4-week downhill treadmill running,the structure,quantity and function of mitochondria in skeletal muscle are impaired.FKBP8-mediated mitophagy is activated,but is insufficient to degrade the damaged mitochondria,leading to muscular damage,as well as the increasing and falling down of running capacity.
6.Exploration on the Medication Law of Zhang Binghou in Treating Diabetic Kidney Disease Based on Data Mining
Mengyu LI ; Haitao SHANG ; Shiwen ZHANG ; Wenjing ZHAO ; Zhen CAI ; Xinxin PANG ; Xiaodan YIN
Chinese Journal of Information on Traditional Chinese Medicine 2024;31(9):58-65
Objective To analyze Professor Zhang Binghou's medication experience in the treatment of diabetic kidney disease using data mining methods;To screen the core medicinal pairs and medicinal groups.Methods Prescriptions of diabetic kidney disease of Professor Zhang Binghou from the outpatient department of Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical University were selected from January 2014 to December 2021.TCM Inheritance Platform System 2.5,SPSS Modeler 18 and SPSS Statistics 21 software were used for association rules,clustering analysis and factor analysis to summarize the medication frequency,properties and tastes and meridians,and medicinal pairs and combinations.Results A total of 161 prescriptions were included,involving 188 kinds of Chinese materia medica,with a total frequency of 2 220 time.The kinds of Chinese materia medica with higher frequency were Rehmannize Radix et Praeparata,Testudinis Carapax et Plastrum,Astragali Radix,Rehmannine Radix,etc.The main properties were cold and warm,the main tastes were sweet and bitter,and the main meridians were kidney,liver and spleen meridians.A total of 14 drug pair association rules were obtained,with 27 commonly used drug combinations.Clustering analysis extracted 10 combinations based on the spectrum,and factor analysis extracted 14 common factors.Conclusion Professor Zhang Binghou's treatment for diabetic kidney disease takes nourishing the true yin and clearing away damp-heat as the main treatment method,and at the same time,it pays attention to tonifying kidney,consolidating essence,nourishing yin and containing yang,promoting blood circulation and removing blood stasis,etc.,which embodies Professor Zhang Binghou's unique academic thought of treating diabetic kidney disease.
7.Effects of Xuesaitong soft capsule on complement-inflammation receptor system in patients with type 2 diabetic nephropathy
Haitao SHANG ; Qing ZHU ; Xinxin PANG ; Jiarui HAN ; Shiwen ZHANG ; Mengyu LI
China Pharmacy 2022;33(1):84-89
OBJECTIVE To observe the effects of Xuesaitong soft capsule on the complement-inflammatory receptor system in patients with type 2 diabetic nephropathy. METHODS A total of 92 patients with type 2 diabetic nephropathy were divided into control group and observation group by random number table method ,with 46 cases in each group. Patients in the control group were given basic treatment programs (including low-salt and low-protein diet ,quitting smoking and alcohol ,appropriate exercise , lowering blood pressure ,blood sugar and lipid ,etc.). The patients in the observation group took Xuesaitong soft capsules orally on the basis of the treatment of the control group ,0.55 g each time ,3 times a day. The treatment course of both groups was 4 weeks. Compare the renal function of the two groups of patients [24 h urine protein quantification ,serum creatinine (Scr),blood urea nitrogen,glomerular filtration rate (GFR)],fasting blood glucose ,glycosylated hemoglobin ,complement factors [C3,C5, complement factor H (CFH),C5b-9],inflammatory factors [interleukin 1(IL-1),tumor necrosis factor α(TNF-α),IL-6,monocyte chemoattractant protein- 1(MCP-1)],renal tubular injury markers [β2-microglobulin(β2-MG),retinol binding protein 4(RBP4), neutrophil gelatinase associated lipocalin] levels;correlation between renal tubular damage and complement-inflammatory receptor system was analyzed in the observation group before and after treatment. RESULTS Compared with before treatment ,24 h urine protein quantity ,Scr,C3,IL-1,TNF-α,MCP-1,β2-MG and RBP 4 of 2 groups were reduced significantly after treatment ,while GFR and CFH were significantly increased ;except for C 3,the observation group was significantly better than the control group (P< 0.05). C 5 of the observation group was significantly decreased after treatment and was significantly lower than the control group (P<0.05). There were no statistically significant 60979837。E-mail:shanght126@126.com differences in other indicators of the two groups before and after treatment and between groups (P>0.05). C 3,MCP-1 and TNF-α were significantly correlated with renal tubular com damage (P<0.05),and esp ecially C 3. CONCLUSIONS Xuesaitong soft capsule can reduce renal tubular damage in patients with type 2 diabetic nephropathy and improve renal function by acting on the complement system and reducing inflammation.