1.Regulatory effect of miRNA enfolded in microparticles on endothelial cells
Chinese Journal of Pathophysiology 2015;(8):1531-1536
Endothelialcellsarethecellsliningtheinnersurfacesofbloodvessels.Theybuildupasinglecell layer and play an important role in the regulation of vascular functions and the maintenance of homeostasis .The activation or injury of endothelial cells is associated with multiple diseases , including hypertension , atherosclerosis, cancer, diabe-tes, etc.Recent studies have found that microparticles are involved in the process of endothelial cell injury , thus playing a part in the development of many diseases .miRNAs enfolded in the microparticles have become importance in recent years . Moreover , recent studies also found that the concentration of the miRNAs enfolded in the microvesicles is higher than that of the miRNAs in the plasma , which means that the microparticles are the main form of miRNAs present in peripheral circula -tory system.This article is to review the recent research progress in microparticle-encapsulated miRNAs and their regulatory effect on endothelial cell injury .
2.Progress in role of lncRNA in cardiovascular diseases
Chinese Journal of Pathophysiology 2016;32(8):1471-1477
Cardiovascular diseases are closely related to proliferation , injury and apoptosis of the cells in the cardiovascular system .For instance , endothelial cells play an important role in the pathogenic process of hypertension and atherosclerosis , and smooth muscle cells and monocytes/macrophages involve in the formation of atherosclerotic plaque . Recently, it has been confirmed that long noncoding RNA (lncRNA) regulates proliferation, apoptosis, injury, autophagy and differentiation of the cells by a series of regulatory mechanisms , thus participating in the development and progression of cardiovascular diseases .This article is to review the recent research progress on the function of lncRNAs and their regu -latory roles in the cardiovascular diseases at cellular and molecular levels .
3.Influence of obstructive sleep apnea hypopnea syndrome on hyperglycemia
Chunyan HE ; Shengzhong ZHANG ; Honggang LIU
Chinese Archives of Otolaryngology-Head and Neck Surgery 2006;0(04):-
OBJECTIVE To investigate the relationship of obstructive sleep apnea hypopnea syndrome (OSAHS) and hyperglycemia by analyzing the level of blood-fasting sugar (BFS) in patients with OSAHS. METHODS The data of BFS and AHI in patients with OSAHS (n=300) and the data of BFS of controls (n=225) were collected. The difference of high blood glucose in the OSAHS and the controls.and the difference of AHI between OSAHS patients with high blood glucose and OSAHS patients with normal blood glucose was analyzed. RESULTS There were 97 patients (32.3 %) with high BFS in 300 OSAHS patients, but only 14 cases (6.2 %) with high BFS in 225 controls. There was a significant difference between two groups. The average of AHI in OSAHS patients with high BFS was 67.8/h, and average of AHI in OSAHS patients with normal BFS was 38.4/h. There was a significant difference between the two groups. CONCLUSION There is a close correlation of OSAHS and hyperglycemia.
4.Irinotecan plus fuorouracil/ leucovorin as the first-line in treatment of 37 patients with advanced colorectal cancer
Honggang ZHANG ; Fang WU ; Shanshan CHEN
China Oncology 2006;0(12):-
Background and purpose:Irinotecan plus fuorouracil/Leucovorin has become the standard regimen as the first-line in treating advanced colorectal cancer.We investigated the clinical response and side-effects of the first-line treatment with Irinotecan plus fuorouracil/ leucovorin(FOLFIRI) for advanced colorectal cancer.Methods:From may 2001 to march 2005,37 patients with advanced colorectal cancer were treat with irinotecan 180mg/m~(2) i.v.on day 2,and fuorouracil 400 mg/m~(2),bolus on day 1,2 and 1200 mg/m~(2),civ.44hour;leucovorin 200 mg/m~(2) i.v.on day 1,2,two weeks per cycle.Results:The response rate was 41.7%.Incidence of III/IV Grade myelosuppression was 35.1%/8.1%,and 4 patients suffered from febrile neutropenia.Incidence of III Grade delayed diarrhea was 8.1%.Conclusions:The first-line chemotherapy with a combination of irinotecan and fuorouracil/ leucovorin is effictive and well tolerated by patients with advanced colorectal cancer.
5.An experimental study of guided bone regeneration using collagen membrane
Honggang GUO ; Baixun ZHANG ; Shibi LU
Chinese Journal of Orthopaedic Trauma 2002;0(01):-
Objective The purpose of this study is to observe the property of guided bone regeneration by collagen membrane and investigate the mechanism of guided bone regeneration. Methods 10mm defect of radius was created bilaterally in adult New Zealand rabbits. The experimental group was transplanted by collagen membrane with surface decalcified bone allograft,and the control group was transplanted by surfaced decalcified bone allograft alone.Radiological and histological and immunohistochemical examinations were taken postoperatively. Results In the transplantation area of experimental group,distinctive periosteal reaction and new bone growth occurred remarkably,bone remodeling progressed successfully,and defects healed completely.But in the transplantation area of the control group,new bone growth and mature bone replacement were delay due to occupation of fibrous connective tissue. Conclusions Collagen membrance has an ability to block and guide.In addition,membrane tube can keep endogenic BMP with exogenic BMP greatly concentrating and effectively distributing. The distributive characteristic of BMP exerts an influence on cellular resources and pattern of bone healing.
6.Research progress of capecitabine combined chemotherapy with biweekly scheme
Shoudong MA ; Guogui SUN ; Honggang ZHANG
Basic & Clinical Medicine 2017;37(6):884-888
As an oral chemotherapy drug, capecitabine is safe, effective and easy to use, has been widely used in the treatment of esophageal cancer, gastric cancer, colorectal cancer, breast cancer, ovarian cancer and other solid tumor.The chemotherapy scheme is mainly for 3 weeks, each cycle of capecitabine for 14 days, and 7 days off.As a modification to conventional chemotherapy, the biweekly scheme with capecitabine showed low toxicity and well tolerated by patients, short hospitalization time and other characteristics, it is worth of application in clinical.
7.Effects of different Chinese herbal medicines on biochemical parameters in guinea-pig with pigment gallstones
Jingzhe ZHANG ; Xuelin ZHANG ; Xiaoqiang LIANG ; Honggang GU ; Peiting ZHU
Journal of Integrative Medicine 2008;6(8):856-9
OBJECTIVE: To observe the effects of Qingdan Capsule (QDC) and Yanggan Lidan Granule (YGLDG), two kinds of compound traditional Chinese herbal medicines, on biochemical parameters in guinea-pigs with pigment gallstones. METHODS: An animal model of pigment gallstones was established in male guinea-pigs by hypodermic injection of lincomycin. The guinea-pigs were randomly divided into blank control group, untreated group, QDC group and YGLDG group. There were 8 guinea-pigs in each group. After ten-day treatment, animals were sacrificed and sampled to calculate the rate of stone formation, total bilirubin (TB), unconjugated bilirubin (UCB) and Ca2+ density in bile of the four groups. RESULTS: In comparison with the untreated group, the rates of stone formation in the QDC and YGLDG groups were significantly decreased (P<0.01). TBIL, UCB and Ca2+ content of bile in both QDC and YGLD groups was also significantly decreased (P<0.05, P<0.01). CONCLUSION: QDC and YGLD have good effects on biochemical changes of animal model of pigment gallstone in reversing the lithogenesity of bile by reducing the content of TB, UCB and Ca2+, hence resulting in clinical treatment and prevention of pigment gallstone disease.
8.Effect of emulsified isoflurane on cognitive function in rats
Jing PENG ; Zhaoqiong ZHU ; Chao ZHANG ; Ling LI ; Honggang ZANG
Chinese Journal of Anesthesiology 2011;31(10):1224-1227
Objective To evaluate the effect of emulsified isoflurane on cognitive function in rats.Methods Seventy-two adult male SD rats,aged 8 weeks,weighing 250-300 g,were randomly divided into 3 groups:normal control group (group C,n =12),intralipid group(group E,n =12),and 8% emulsified isoflurane group ( group EI,n =48).Morris water maze test was performed at 2 h after administration in group E and at 2 h,1,7,14 d after administration in 12 rats at each time point in group EI.The escape latency,staying time at the original platform quadrant,frequency of crossing the original platform and swimming speed were recorded.Orbital blood samples were taken from 6 rats in each group after water maze test for determination of the plasma corticosterone concentration,and then the animals were sacrificed and their hippocampi were removed for determination of brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) contents.Brains were removed from another 6 rats in each group after water maze test for determination of the expression of BDNF and NGF in DG,CA3,CA2,CA1 of hippocampus.Results Compared with group C,in group EI the escape latency at 2 h after administration was prolonged,staying time at the original platform quadrant was shortened,the expression of BDNF in DG and CA3 of hippocampus was down-regulated and the BDNF content in hippocampus was decreased at 2 h and 1 d after administration( P < 0.05 or 0.01).The escape latency was shortened and staying time at the original platform quadrant was prolonged at 7 and 14 d after administration,the content of NGF in hippocampus was increased at 1,7 and 14 d after administration and the expression of BDNF in DG and CA3 of hippocampus was up-regulated at 1d after administration as compared with those at 2 h after administration in group E1( P < 0.05 or 0.01).There was no significant difference in the variables mentioned above between groups E and C( P > 0.05 ).There was no significant difference in plasma corticosterone concentration among the 3 groups ( P > 0.01 ).Conclusion The mechanism by which emulsified isoflurane results in transient cognitive impairment in rats is related to down-regulating the expression of BDNF in hippocampus,but not related to corticosterone and NGF.
9.Effects of isoflurane anesthesia on NR1 expression and neuronal apoptosis in hippocampus and cortex of adult rats
Honggang ZANG ; Zhaoqiong ZHU ; Chao ZHANG ; Li YIN ; Jin LIU
Chinese Journal of Anesthesiology 2014;(3):297-299
Objective To evaluate the effects of isoflurane anesthesia on NR1 expression and neuronal apoptosis in the hippocampus and cortex of adult rats .Methods Thirty-six adult male Sprague-Dawley rats , weighing 250-280 g ,were randomly assigned into 3 groups using a random number table :control group (group C , n=6 ) ,O2 inhalation group (group O , n=6 ) and isoflurane anesthesia group (group I , n=24 ) .The rats were exposed to 2% isoflurane (group I) ,to pure oxygen (group O) ,or to air (group C) for 2 h .At 2 h ,and 1 ,7 and 14 days after the rats were awake (T1-4 ) ,Morris water maze test was performed .The rats were then sacrificed and brains were removed for isolation of the hippocampus and cortex .NR1 expression was detected using SABC immuno-histochemical technique and neuronal apoptosis was determined using TUNEL .Results Compared with group C , the escape latency at T2 and total swimming distance at T1 ,2 were significantly prolonged , and the expression of NR1 in hippocampi was down-regulated at T1 ,2 in group I ,and the expression of NR1 in the cortex was down-regulated in O and I groups ( P<0.05) .There was no significant difference in the apoptosis index between the three groups ( P> 0.05 ) .Conclusion Isoflurane anesthesia can decrease the cognitive function transiently ,which is related to inhibition of up-regulation of NR1 expression in the hippocampi ,but not related to neuronal apoptosis in adult rats .
10.Short-term therapeutic effect of full-thickness peroral endoscopic myotomy for achalasia
Fangwei HE ; Honggang YU ; Jun ZHANG ; Xu HUANG ; Ganggang MU
Chinese Journal of Digestive Endoscopy 2016;33(4):211-214
Objective To investigate the efficacy and safety of full?thickness peroral endoscopic my?otomy( POEM) for achalasia in a follow?up period of 1 year. Methods Data of 28 patients who underwent full?thickness POEM in our hospital from July 2013 to June 2014 were retrospectively studied. Procedure completion and complications were assessed at the end of follow?up of 12 months. Results All patients were treated successfully by full?thickness POEM with the mean operation time of (61?7±15?6) minutes. Intraop?erative mucosal perforation occurred in 2( 7?1%) patients. Symptoms were relieved in 28 patients, but ster?num pain occurred in 6(21?4%) patients. POEM failed in one case in the first 3 months, and was successful in 27 other cases.treatment success rate (Eckardt≤3) was 89?3%(25/28). The incidences of postoperative reflux and esophagitis were 25?9%( 7/27 ) and 22?2%( 6/27 ) , respectively. Conclusion The full?thickness POEM is safe and effective with less complications, but further study is needed to evaluate long?term efficacy and complications.