1.The influence of Fasudil on oxidative stress in patients with early-stage diabetic nephropathy
The Journal of Practical Medicine 2015;(8):1318-1320
Objective To investigate the influence of Fasudil on oxidative stress in patients with early-stage diabetic nephropathy. Methods 48 patients with earl-stage diabetic nephopathy were randomly divided into control group treated with Alpha-lipoic acid and treametn group with Fasudil. All patients were under strict control of blood glucose. Changes in the levels of serum cysc, urinal mALB and 8-OHdG were observed after two weeks treatment were compared between the two groups. Results Compared to pre-treatment, the content of serum cysc, urinal mALB and 8-OHdG were significantly decreased in both groups after treatment. There was no significant difference in the content of urine mAlb , CTGF and MCP-1 between the two groups before and after treatment (P > 0.05). Conclusion Fasudil may protect kidney through a mechanism by which the level of 8-OHdG in kidney is decreased and oxidative stress is alleviated.
2.The comparative study on ultrastructure and immunohistochemistry in AFP negative and positive hepatocellular carcinoma.
Meirong, ZHENG ; Youbing, RUAN ; Mulan, YANG ; Yang, GUAN ; Zhongbi, WU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2004;24(6):547-9, 559
To comparatively investigate ultrastructural characteristics and expressions of AFP (alpha-fetoprotein) and Tn (Thomsen-Friedenreich-related antigen) protein in AFP negative (AFP-) and AFP positive (AFP+) primary hepatocellular carcinoma. Fourty-three cases of AFP- and AFP+ hepatocellular carcinoma (HCC) tissues and five cases of normal liver tissues were divided into three groups: control group (normal liver tissue, n=5); AFP+ HCC group (the serum AFP level was higher than 10 ng/ml, n = 22); AFP- HCC group (the serum AFP level was lower than 10 ng/ml, n=21). The ultrastructural morphology was studied by transmission electron microscopy, the expressions of AFP and Tn protein were detected by immunohistochemistry and cell image analysis. 1. The immunohistochemical study showed that (1) the expression intensity and positive rate of Tn protein in AFP- HCC group were markedly higher than that in AFP+ HCC group (P<0.01); (2) The expression intensity of AFP in AFP- HCC group was lower than that in AFP+ HCC group (P<0.01). 2. The transmission electron microscopy demonstrated that some AFP- HCC cells linked closely with each other, others dispersed loosely just as cultured cells, the remarkable morphologic features in AFP- HCC cells were simple organelles, but they were abundant in the free polyribosomes. In AFP+ HCC group, all the HCC cells linked closely together and were rich organelles in their cytoplasm, especially the rough endoplasmic reticula. In addition, mitochondria and Golgi complex were obviously observed. (1) The AFP and Tn protein had discrepancy distribution in AFP- and AFP+ HCC tissues, Tn protein may be one of the early diagnostic indicators in AFP- HCC; (2) The synthetic locations of the AFP and Tn protein were different in hepatocarcinoma cells by ultrastructural observation.
3.Efficacy of complications of different surgical treatments in cervical intraepithelial neoplasia Ⅲ
Siyuan ZENG ; Meirong LIANG ; Longyu LI ; Yunyan WU
Chinese Journal of Obstetrics and Gynecology 2009;44(8):574-577
e the individual choice depending on their different conditions.
4.Analysis of 4223 hospitalized patients with cervical cancer during 1990-2007
Yunyan WU ; Meirong LIANG ; Longyu LI ; Siyuan ZENG
Chinese Journal of Obstetrics and Gynecology 2008;43(6):433-436
Objective To analyze the changes in epidemiology and treatment of hospitalized patients with cervical cancer during 1990-2007.Methods Overall.4648 patients witIl cervical cancer were diagnosed in our hospital from Jan 1990 to Nov 2007.but only 4223 patients with initial treatment in Oily hospital were studied retrospectively.Pearson Chi-square test was used to compare tlle age,stage,histopathologie type and treatment metheds between different times.Results (1)The meal]age of cervical cancer patients gradually decreased over the past 18 years,from 54.4 years during 1990-1999 to 47.2 years during 2000-2007:the proportion of young patients aged≤35 years increased from 4.77%(89/1865)during 1990-1999 to 11.75%(277/2358)during 2000-2007.(2)The proportion of patients with cervical cancer(stage I a-H a)increased from 14.32%(267/1865)during 1990-1999 to 40.75%(961/2358)during 2000-2007,whereas the proportion of patients with cervical cancer(stage Ⅱ b-lV)decreased from 85.68%(1598/1865)during 1990-1999 to 59.25%(1397/2358)during 2000-2007.(3)There was no significant change in histopathologie type of cervical cancer,and squamous cell careinoma of cervix remained the main type of cervical cancer.(4)The treatment pattern of cervical cancer changed significantly:radiotherapy was the main method(75.28%)for eervical cancer during 1990-1 999.but during 2000-2007.it was replaced by concurrent chemoradiotherapy(35.79%).Conclusions The proportion of young women with cervical cancer was increased during 1990-2007.and at the same period early stage cervical cancer increased.but late stage cervical cancer decreased.It is obvious that chemotherapy has become the important therapy in cervical cancer.
5.Effects of acute peritonitis on rocuronium-induced neuromuscular blockade in abdominal muscles and function of sarcoplasmic reticulum of rats
Jianyou ZHANG ; Shitong LI ; Yuan GONG ; Meirong YANG ; Jin WU
Chinese Journal of Anesthesiology 2016;36(9):1118-1121
Objective To evaluate the effects of acute peritonitis on rocuronium?induced neuromus?cular blockade in abdominal muscles and function of the sarcoplasmic reticulum of rats. Methods Thirty?six pathogen?free male Sprague?Dawley rats, weighing 220-250 g, were divided into 2 groups using a ran?dom number table: control group (group C, n=12) and acute peritonitis group (group P, n=24). After the rats were anesthetized with pentobarbital sodium, acute peritonitis was induced by artificial gastric per?foration in group P. At 1 and 2 h after operation, the changes in the intra?abdominal pressure (IAP) with different volumes were detected, and blood samples were collected from the orbital veins for determination of serum levels of interleukin?6, tumor necrosis factor?alpha and interleukin?13. Rocuronium 3. 5 mg∕kg was then injected via the caudal vein. The IAP was recorded at 1, 5 and 10 min after administration. The intra?cellular free Ca2+ concentration was assessed using fura?2, and the maximal Ca2+ uptake and release rate in the sarcoplasmic reticulum were calculated. Results Compared with group C, the serum levels of interleu?kin?6 and tumor necrosis factor?alpha at 2 h after operation and IAP at 1 and 2 h after operation were signifi?cantly increased, the IAP was increased at 1, 5 and 10 min after administration of rocuronium, and the maximal Ca2+ uptake rate and amount of calcium uptake in the sarcoplasmic reticulum were decreased in group P ( P<0.01) . Conclusion Acute peritonitis decreases rocuronium?induced neuromuscular blockade in abdominal muscles, which may be related to the impaired Ca2+uptake function of the sarcoplasmic reticu?lum of rats.
6.MRI characteristics of pilomyxoid astrocytoma
Meirong LI ; Zhongyang ZHANG ; Yuhua LI ; Huimin LI ; Zhuqiang WU
Chinese Journal of Radiology 2014;(5):422-424
Objective To investigate the MRI features of pilomyxoid astrocytoma ( PMA ) in children.Methods MRI features of seven children with pathologically proven PMA in 2011-2013 were retrospectively analyzed.The ages of the patients ranged from 10 months to 32 months at initial diagnosis.Results All tumors were well-circumscribed masses.Six tumors were located in the hypothalamic-chiasmatic-third ventricular region , two tumor involved the bilateral temporal lobe , and one tumor was associated with NF-I.One occurred in the basal ganglia region.Four tumors were solid masses , whereas the other three showed cystic components.Six tumors were hypointense and one was isointense on T 1-weighted image.Five tumors were hyperintense and three were isointense on T 2-weighted image.Four tumors were hypointense , one was iso-hypointense and one was isointense on DWI.After contrast administration , four tumors enhanced homogenously and three tumors enhanced heterogeneously , with intratumoral irregular hypointense region in two tumors and rim enhancement in one tumor.Cerebrospinal fluid ( CSF ) dissemination, hydrocephalus and peritumor edema were observed in 2, 4 and 1 of cases, respectively.Proton magnetic resonance spectrum of two PMA showed elevated Cho /Cr ratios and decreased NAA/Cr ratios.Conclusions The imaging features of pilomyxoid astrocytoma include common origination from the midline of the neuroaxis in younger children about 2-3 years old.The CSF dissemination is common.The presence of hemorrhage and peritumor edema is not common.
7.Reflection of quality management of conducting international cooperative academic clinical research in China
Meirong WANG ; Haibo WANG ; Ping JI ; Yangfeng WU
Chinese Journal of Medical Science Research Management 2017;30(3):164-168
Objective Through summarizing quality management practices of international cooperative academic clinical studies funded by Peking University Health Science Center,analyzing its present major challenges of implementation in China,this paper proposed related measurements and suggestions to improve the quality of clinical research.Methods To sort the project management archive data,as well as descriptive analysis of the common monitoring/auditing findings.Results From the year 2011 to 2016,there were 14 such studies funded by Peking University health science center,common findings during monitoring and or auditing were classified as following categories,study files problem (100.0%),ethics problem (71.4%),protocol noncompliance (64.3%),data quality issues (71.4%),communication problem in study teams (14.3%),export problems of bio-specimens (14.3 %),recruiting delay (14.3 %) and cooperation termination in advance (7.1 %).Conclusions In order to obtain credible and reliable data,peer recognized research conclusion and accurate answered scientific questions,it is essential for investigators to comply with laws and regulations and being strongly supported.Furthermore,researchers also need to establish and strictly follow study protocols,standard operating procedures (SOPs),research quality management system and relevant national laws and regulations that are comply with actual requirements in China.
8.Analysis of the treatment and diagnosis for 576 cases of thyroid nodular diasease
Ming JIANG ; Xueqing JIANG ; Meirong YIN ; Yonggang YANG ; Zhiyong WU
Journal of Endocrine Surgery 2009;3(2):107-109
Objective To investigate the pathogenic constitution of thyroid nodular diasease and it' s di-agnosis and treatment.Methods A retrospective analysis was performed on data of 576 patients accepted hospi-tal therapy with thyroid nodular diasease from January 2004 to June 2008.Results Definite diagnosis of all easeswere made by surgery biopsy or fine needle aspiration-cytology.529 eases were benign lesions, another 47 eases were malignant lesions.Condusions Ultra-sound , FNAC and frozen sections have important value in differenti-al diagnosis for the thyroid nodules, nodular goiter is most common, and which have a close relationship with thy-roid carcinoma.Regular surgical resection would reduce the recurrence of thyroid nodular diasease and avoid missed diagnosis for thyroid carcinoma.
9.Research progress of AIDS treatment
Yansheng YAN ; Pingping YAN ; Liang CHEN ; Shouli WU ; Meirong XIE ; Tingting WU ; Pincang XIA ; Yuefeng QIU
Chinese Journal of Zoonoses 2017;33(5):383-388
AIDS antiviral therapy (ART) has achieved great success.Originaly,AIDS had been regarded as a fatal disease,but it has become a kind of infectious disease that could be cured and administrated.Global HIV / AIDS cases were still up to about 38 million,but more than half have been effectively treated.In addition to drug treatment,at present,some new technologies and new methods,such as genome editing,have also been involved in the treatment of AIDS,and in the humanized animal experiment has shown very good results.There is no doubt that AIDS will eventually be stopped its epidemic.However,with the continuous development of AIDS antiviral treatment,the most fundamental problem is that HIV latent library has become increasingly prominent one,whether molecular therapy and hybrid cure have being developed for AIDS treatment,there are still such problem existence.Great efforts shoud be made to continuously search for new markers of latent viral cells and to reduce the latent pool.In addition,despite the prevention and treatment of AIDS has made great achievements,but the world still produces nearly 6000 cases of HIV/AIDS every day.Therefore,the development of safe and effective vaccine,whether in the field of prevention,or in clinical treatment,has its positive significance.
10.Effects of Electrical Acupuncture on Swelling of Voix Pedis and Proinflammatory Cytokines in Adjuvant Arthritis Rats
Kun AI ; Dan WU ; Xiaorong CHANG ; Mi LIU ; Li LIU ; Meirong LIU
Chinese Journal of Rehabilitation Theory and Practice 2011;17(7):622-624
Objective To explore the effect of electrical acupuncture on the cytokines in adjuvant arthritis rats. Methods 60 rats were divided into 5 groups randomly, each with 12 rats. The blank control group and the model group were only bundled; while the Zusanli group, the Guanyuan group, and the Weizhong group were electroacupunctured each single point after bundled, once per 2 d. 32 d later, the swelling of voix pedis was measured and the level of interleukin (IL)-1, IL-2, IL-10, tumor necrosis factor (TNF)-α in plasma was determined in each group. Results After being modeled, the voix pedis of rats were swelling (P<0.05), while the swelling of voix pedis in the Zusanli, Guanyuan and Weizhong groups significantly reduced (P<0.05). The plasma IL-1, IL-2 and TNF-α was significantly higher in the model group than in the blank group (P<0.01), and reduced in Zusanli, Guanyuan and Weizhong groups (P<0.05). Compared with Zusanli and Guanyuan groups, there was a significant difference in the Weizhong group (P<0.01). The plasma IL-10 was significantly lower in the model group than in the blank control group (P<0.05), and increased in the Zusanli, Guanyuan and Weizhong groups (P<0.05). Compared with Zusanli and Guanyuan groups, there was a significant difference in the Weizhong group (P<0.01). The swelling of voix pedis was positively correlated with the level of IL-1, IL-2, and TNF-α (r=0.881~0.912, P<0.01). There was positive correlation among the IL-1, IL-2, and TNF-α (P<0.01). IL-10 was negatively correlated with the swelling, IL-1, IL-2, and TNF-α (r=-0.293~-0.519, P<0.05). Conclusion Electroacupuncture can significantly reduce the swelling of voix pedis in adjuvant arthritis rats, and it may be related with improving immune function by increasing the level of IL-10 and decreasing the level of IL-1, IL-2 and TNF-α in plasma.