1.Analysis of the expression of MICA on tumor cell lines of different histotypes and their sensitivity to NK cytotoxicity
Jiazhuan MEI ; Kunyuan GUO ; Hongmei WEI ; Hong CHANG
Chinese Journal of Immunology 1985;0(01):-
Objective:To investigate the expression of MHC class Ⅰ chain-related gene A(MICA) on different human tumor cells(K562,MCF-7,HR-8348,CNE-2,HeLa) and their sensitivity to NK cytotoxicity.Methods:Cytotoxicity of NK cells(isolated from 3 healthy persons) were detected by LDH releasing assay at different effect-to-target cell ratios(E∶T). The expression of MICA was measured by FACS.Results:Different level of MICA was detected on surface of tumor cell lines, anti-MICAmAb could partially inhibit the cytotoxicity of NK cells.Conclusion:NKG2D-MICA interaction can trigger the cytotoxicity of NK cells against tumor,NK cells can be a kind of effector cell for the treatment of some certain tumors.
2.Allogeneic peripheral blood hematopoietic stem cell transplantation for one case of extremely severe bone marrow form of acute radiation sickness
Jian-Hui QIAO ; Chang-Lin YU ; Mei GUO ;
Chinese Journal of Organ Transplantation 2005;0(09):-
Objective To explore the effects of peripheral stem cell transplantation on extremely severe bone marrow form of acute radiation sickness.Methods One patient was radiated aecidently with the radiation dosage of 9~15 Gy and diagnosed as extremely severe bone marrow form of acute radiation sickness.Pretreatment was performed at 4th day after the accident and 3 days later,HLA- matched allogeneic stem cell transplantation on the patient was performed.Graft versus host disease (GVHD) was prevented with cyclosporin A (CsA) and mycophenolate mofetil (MMF).Results The haematopoiesis was recovered at 9th day after transplantation.At 11th day after transplantation, WBCs were increased to 14.74?10~9/L and returned to the normal levels subsequently,number of platelets risen to 51?10~9/L and hemaglobin was over 80 g/L.TRS-PCR and blood type dynamic detection testified that the donor's cells were stably implanted,the chromosome aberration and micro- nuclei disappeared after transplantation,and the patient's blood type changed into the donor's at 27th day after transplantation.But the radiation injury were still getting worse complicated with multiple infections,At 68th day after transplantation (75 days after the accident),the patient was died of mul- tiple organs failure.Conclusion Extremely severe bone marrow form of ARS can achieve hematopoie- sis recovery by allogeneic stem cell transplantation,but only hematopoiesis recovery can not cure the immunodefficiency and the radiation injury of the whole body.
3.Study of the effect of physical therapy on patients with above knee amputation
Dong-mei CHANG ; Shu-rong JI ; Hui GUO ; Qi ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2002;8(3):172-172
ObjectiveTo study the rehabilitation effect of physical therapy on patients with above knee amputation. Methods50 patients with above knee amputation were evaluated with FIM scale before and after physical therapy. ResultsThere was a significant difference before and after physical therapy(P<0.05). Conclusions Physical therapy is effective on patients with above knee amputation.
4.Apoptosis and Bcl-2 expression of cell line K562/AO2 treated with adriamycin in combination with hyperthermia
Hong-Mei WEI ; Kun-Yuan GUO ; Jia-Zhuan MEI ; Hong CHANG ; Chao-Yang SONG ;
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(04):-
Objective To investigate the inhibitory effect of adriamycin in combination with hyperthermia on apoptosis and bcl-2 expression in the chronic leukemic cell line K562/AO2 in vitro.Methods The working con- centration of adriamycin against K562/AO2 determined by using methyl thiazolyl tetrazolium(MTT) assay was used to treat the chronic leukemic cell line K562/AO2 in vitro alone or in combination with hyperthermia induced using a hot water bath at 40,41 or 42℃.The inhibitory effect was evaluated by MTT assay.The apoptosis rates and bcl-2 ex- pression of K562/AO2 were determined by flow cytometry.Results The working concentration of adriamycin in the study was defined as its 50% inhibition concentration (IC50).A 60 min session of hyperthermia at 40℃,41℃or 42℃was associated with significant growth inhibition of the cell line K562/AO2.Adriamycin chemotherapy alone and with hyperthermia significantly inhibited the growth of K562/AO2.All treatments significantly increased apoptosis rates and down-regulated bcl-2 expression of the K562/AO2 cell line.Conclusion Adriamycin chemotherapy com- bined with 60 min sessions of hyperthermia showed significant suppression effect on K562/AO2 cell proliferation.The treatment can increase apoptosis rates and down-regulate bcl-2 expression.
5.EtioIogy anaIysis and surgery of paraIytic strabismus in aduIts
Zheng-Yong, FENG ; Hao, WEI ; Chang-Mei, GUO ; Dan, HU ; Yu-Sheng, WANG
International Eye Science 2015;(3):418-420
·AlM: To investigate pathogeny and effects of surgery on paralytic strabismus.
· METHODS: A retrospective study was done in 46 patients with paralytic strabismus who underwent squint correction in our hospital from June 2010 to June 2013. Among 26 horizontal strabismus, the cases of extra rectus palsy was 16, internal rectus palsy was 10.Among all20 vertical strabismus, the cases of superior oblique palsy, superior rectus palsy, inferior rectus palsy, double elevator palsy counted for 7, 8, 2 and 3, respectively. Pathogenesis: trauma was 19 cases, followed by 10 cases that the causes could not be identified.Nine was congen ital paralytic strabismus, 8 o ccurred after nose or brain surgery. The surgery methods included rectus muscle recession, rectus muscle resection, partial rectus muscle transposition, Jensen procedure, inferior oblique myectomy and anterior transposition of inferior oblique. Statistical software SPSS10.0 was used in chi-square test between two groups, while the situation of paralysis eye movements improved by two methods in the horizontal strabismus group was compared with t test.
· RESULTS: Among all horizontal strabismus the rate of cure, improvement and inefficiency was 20 ( 77%) , 5 ( 19%) and 1 ( 4%) , respectively. Among vertical strabismus the ratio of cure, improvement and inefficiency was 15 (75%), 3 (15%) and 2 (10%).There was no significantly difference between the two groups ( P >0.05 ). The movements of paralytic eyes were improved. Two procedures used in horizontal strabismus, can improve paralysis eye movements were 3.76 ±0.91, 3.72 ±0.84mm, with no significant difference (P=0.93) statistically.
· CONCLUSlON: Paralytic strabismus in adults had complicated conditions. Choosing different operation methods in treating paralytic strabismus according to the degree of paralysis can result in satisfactory cosmetically alignment of the eyes and modify head position and diplopia.
6.The Rare Association of Moyamoya Disease and Cerebral Arteriovenous Malformations: a Case Report.
Te Chang WU ; Wan Yuo GUO ; Hsiu Mei WU ; Feng Chi CHANG ; Cheng Ying SHIAU ; Wen Yuh CHUNG
Korean Journal of Radiology 2008;9(Suppl):S65-S67
A 36-year-old man was diagnosed with a right temporal lobe grade II cerebral arteriovenous malformation (cAVM) and was treated with radiosurgery. At nine months after the cAVM radiosurgery, the patient began to develop bilateral focal narrowing at the M1 segments of the bilateral middle cerebral arteries. The narrowing progressively deteriorated as was demonstrated on longitudinal serial follow-up MR imaging. X-ray angiography performed at 51 months after radiosurgery confirmed that the cAVM was cured and a diagnosis of moyamoya disease. To the best of our knowledge, this is the first case of cAVM-associated moyamoya disease that developed after radiosurgery. Given the chronological sequence of disease development and radiation dose distribution of radiosurgery, it is proposed that humoral or unknown predisposing factors, rather than direct radiation effects, are the cause of moyamoya disease associated with cAVM.
Adult
;
Humans
;
Intracranial Arteriovenous Malformations/diagnosis/*surgery
;
Magnetic Resonance Imaging
;
Male
;
Moyamoya Disease/*etiology
;
Postoperative Complications
;
Radiosurgery
7.Mechanism study of the transmission of moxibustion heat in human acupoint tissues
Jia-Feng DING ; Xin CHU ; Xiao-Rong CHANG ; Xin-Mei LI ; Yao ZENG ; Jian LIANG ; Xue-Mei XU ; Ding-Yan BI ; Mi LIU ; Guo-Bin DAI
Journal of Acupuncture and Tuina Science 2019;17(1):24-30
Objective:To discuss the topical action characteristics of the biological transmission of moxibustion heat via temperature collection and numerical modeling.Methods:Temperature of moxibustion was measured at multiple points at a distance of 3 cm to obtain the moxibustion temperature field nephograms by the high-accuracy temperature measure array.Finite element analysis was used to imitate the three-dimensional dynamic distribution of temperature in acupoint tissues.Results:Through numerical analysis,the one-dimensional,two-dimensional and three-dimensional distributions of temperature in human acupoint tissues at 5 min of moxibustion were established.The result showed that moxibustion heat mainly transmitted from the surface of the tissue to the internal,and the influence of moxibustion heat decreased with the depth of the tissue.The analysis of the nephograms of acupoint tissue temperature at 5,10,15 and 20 min of moxibustion showed that with the increase of the moxibustion time,the temperature in acupoint tissues constantly rose,and the transmission depth of moxibustion heat also further expanded inside acupoint.Conclusion:By establishing the three-dimensional dynamic model of heat transmission inside acupoint tissues with the biological parameters of human tissues and the temperature values obtained,this study used finite element analysis software ANSYS 14.0 and discovered the rules in the transmission of heat in body tissues during moxibustion,and the features in moxibustion heat transmission (from the proximal to the distant) and heat penetration (from the surface to the internal).This study provides theoretical and experimental support for the application of moxibustion in clinical practice.
8.Surveillance of enteric pathogens in outpatient children with acute diarrhea
Hailing CHANG ; Mei ZENG ; Zheng HUANG ; Jiehao CAI ; Jiayin GUO ; Xuebin XU ; Xiangshi WANG ; Yanling GE ; Zhonglin WANG
Chinese Journal of Infectious Diseases 2016;34(1):19-22
Objective To monitor the clinical epidemiology and etiology of acute diarrhea in children in the outpatient setting in Shanghai .Methods An active surveillance study in Children′s Hospital of Fudan University between August 2013 and July 2014 was conducted .Outpatient children with acute diarrhea were enrolled in this study and stool samples were collected .Pathogens including norovirus ,diarrheagenic Escherichia coli (DEC) , nontyphoidal Salmonella spp .(NTS),Campylobacter,Shigella,pathogenic vibrio and Yersinia enterocolitica were identified and typed .The χ2 test was used for statistical analysis .Results Of the 881 stool samples from enrolled children , the pathogens included into the target detection were identified in 246 (27 .92% ) cases . Norovirus ,DEC ,NTS ,Campylobacter and Shigella were detected in 98 (11 .12% ) cases ,74 (8 .40% ) cases , 61 (6 .92% ) cases ,34 (3 .86% ) cases and 2 (0 .23% ) cases ,respectively .Neither pathogenic vibrio nor Yersinia enterocolitica was identified .Children younger than 36 months old (3 .27% ,26/794) had a lower risk (χ2=7 .41 ,P=0 .006) of Campylobacter infection compared with older children (9 .20% ,8/87) .Vomiting (37 .76% ) and watery diarrhea (21 .34% ) were more commonly seen in children with norovirus infection;fever and mucous stool were commonly seen in diarrheal children with NTS infection (40 .98% and 21 .31% ,respectively) and Campylobacter infection (29 .41% and 26 .47% ,respectively) .Conclusion Enteric pathogens play a major role in childhood acute diarrhea in Shanghai .Continuous monitoring of enteric pathogens will be helpful for reasonable treatment and prevention of acute diarrhea in children .
9.Effects of TNF-?on PPAR-?2 mRNA expression and adiponectin secretion in 3T3-L1 adipocytes
Da-Tong DENG ; You-Min WANG ; Ling LIU ; Guo-Ping HU ; Ming-Gong YANG ; Qi-Mei SHE ; Chang-Jiang WANG
Chinese Journal of Endocrinology and Metabolism 1985;0(02):-
Undifferentiated and differentiated 3T3-L1 adipocytes were treated with 100 ng/ml tumor necrosis factor-?(TNF-?),and peroxisome proliferator-activated receptor-?2 (PPAR-?2) mRNA expression and adiponectin secretion in cultured cells were measured.The results showed that TNF-?suppressed PPAR-?2 mRNA expression and adiponeetin secretion in 3T3-L1 adipocytes (P
10.Effect of Small Knife Needle on β-enorpin and Enkehalin Contents of Tansverse Process Syndrome of the Third Vertebra.
Nai-gang LIU ; Chang-qing GUO ; Hong-mei SUN ; Xiao-hong LI ; Hai-xia WU ; Hong XU
Chinese Journal of Integrated Traditional and Western Medicine 2016;36(4):476-479
OBJECTIVETo explore the analgesic mechanism of small knife needle for treating transverse process syndrome of the third vertebra (TPSTV) by observing peripheral and central changesof β-endorphin (β-EP) and enkephalin (ENK) contents.
METHODSTotally 30 Japanese white big-ear rabbits of clean grade were divided into 5 groups according to random digit table, i.e., the normal control group, the model group, the small knife needle group, the electroacupunture (EA) group, and the small knife needle plus EA group, 6 in each group. The TPSTV model was established by inserting a piece of gelatin sponge into the left transverse process of 3rd lumbar vertebrae. Rabbits in the small knife needlegroup were intervened by small knife needle. Those in the EA group were intervened by EA at bilateralWeizhong (BL40). Those in the small knife needle plus EA group were intervened by small knife needleand EA at bilateral Weizhong (BL40). Contents of β-EP and ENK in plasma, muscle, spinal cord, and hypothalamus were determined after sample collection at day 28 after modeling.
RESULTSCompared with the normal control group, contents of β-EP and ENK in plasma and muscle increased significantly, and contents of β-EP and ENK in spinal cord and hypothalamus decreased significantly in the model group (P < 0.05, P < 0.01). Contents of β-EP and ENK approximated normal levels in the three treatment groups after respective treatment. Compared with the model group, the content of β-EP in muscle decreased, and contents of β-EP and ENK in hypothalamus increased in the three treatment groups after respective treatment (P < 0.05). There were no significant difference among the three treatment groups (P > 0.05).
CONCLUSIONSSmall knife needle treatment and EA had benign regulation on peripheral and central β-EP and ENK in TPSTV rabbits. Small knife needle treatment showed better effect than that of EA.
Acupuncture Points ; Animals ; Electroacupuncture ; Enkephalins ; metabolism ; Hypothalamus ; metabolism ; Lumbar Vertebrae ; pathology ; Muscle, Skeletal ; metabolism ; Needles ; Rabbits ; Random Allocation ; Spinal Cord ; metabolism ; Spinal Diseases ; therapy ; beta-Endorphin ; metabolism