1.Application of two dimensional electrophoresis,western blot and mass spectrum to screen markers of endometriosis
Hong ZHANG ; Yidong NIU ; Jie FENG ; Huifang GUO ; Xue YE
Journal of Peking University(Health Sciences) 2003;0(04):-
Objective:To find out markers of endometriosis. Methods: The two dimensional gel images of proteins extracted from eutopic endometrium from endometriosis patients and controls were analyzed by software Phoretix 2D,and the proteins expressed differently were identified primarily by query of data base.The proteins extracted from ectopic endometrium of ovarian endometriosis were transferred from two dimensional gel onto nitrocellulose membranes,followed by incubation with sera from women with and without endometriosis. Analyzed by MALDI-TOF-MS,the proteins hybridized differently were identified through their Peptide Mass Footprints. Results: Having compared the reproducible two dimensional gel images of proteins from eutopic endometrium of women with and without endometriosis,we obtained 11 proteins expressed differently.Through Western Blot technique,we found three proteins hybridized differently which were identified as vimentin,?-actin and ATP synthase ? subunit respectively. Conclusion: The protein expression spectra of eutopic endometrium from patients with endometriosis are significantly different from those of the controls,and the anti-endometrial autoantibodies against vimentin, ?-actin and ATP synthase ? subunit may be induced.
2.A secondary discussion on acupoint characteristic.
Jian-Fei NIU ; Xiao-Feng ZHAO ; Lian-Zhong WU ; Xue-Min SHI
Chinese Acupuncture & Moxibustion 2014;34(6):569-571
With references of historical materials and modern literature regarding acupoint characteristic, a secondary analysis on the concept, origin, related factors and research methods in present research of acupoint characteristic is performed. The acupoint characteristic should be considered as an acupoint inherent attribute that could explain physiological and pathological manifestations at the same time, including location attribute and function attribute, which is related with time and treatment method. Some re-thinking on acupoint characteristic is proposed as well as advice on further research method and direction, hoping to promote the research development of acupoint characteristic.
Acupuncture Points
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Acupuncture Therapy
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history
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China
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History, Ancient
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Humans
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Medicine in Literature
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Meridians
3.Effects of Jiji decoction on the cognitive function and oxidative stress in mice with vascular dementia induced by cerebral ischemia/reperfusion.
Feng-xi LIU ; Kai NIU ; Zhi-gang WU ; Gui-ping XUE ; Jian-ming YANG ; Dan-shen ZHANG
Chinese Journal of Applied Physiology 2015;31(2):170-177
OBJECTIVETo determine the effects of Jiji decoction (Traditional Chinese Medicine) on the cognitive function and oxidative stress in mice with vascular dementia (VD) induced by cerebral ischemia/reperfusion.
METHODSThirty-two mice were randomly divided into nonnal group (n = 8), sham group (operation, but no cerebral ischemia/reperfusi6n, n = 8), model group (vascular dementia model induced by cerebral ischemia/reperfusion, n = 8), and Jiji decoction-treated group (vascular dementia model plus treatment with Jiji decoction, n = 8). Fourteen days of treatment after operation, the cognitive behavior was measured in step-through test, spatial probe test and platform test. Afterwards, to assess the levels of oxidative stress, the activity of superoxide dismutase(SOD) and content of malonaldehyde (MDA) in brain of these mice were measured.
RESULTSData from step-through test indicated that the escaping latency of Jiji decoction-treated group was prolonged and the error counts were decreased significantly ( P <0.01) compared with those of model group. Data from spatial probe test indicated that the time of entering darkroom, the time of climbing height and the time of entering bright room in Jiji decoction-treated group were shortened and the counts of climbing height were increased (P < 0.05-0.01) significantly compared with those of model group. Data from platform test showed that the escaping latency of Jiji decoction-treated group was prolonged significantly (P < 0.01) compared with that of model group. Compared with normal and sham group, the activity of SOD was decreased and the content of MDA was increased in model group significantly (P < 0.01). Compared with those of model group, the levels of SOD and MDA in Jiji decoction-treated group were improved significantly (P < 0.01).
CONCLUSIONJiji decoction could improve cognitive function of VD mice. Its mechanism might be related with the inhibition of oxidative stiess in the brain.
Animals ; Brain ; drug effects ; metabolism ; Cerebral Infarction ; physiopathology ; Cognition ; drug effects ; Dementia, Vascular ; drug therapy ; Drugs, Chinese Herbal ; pharmacology ; Malondialdehyde ; metabolism ; Medicine, Chinese Traditional ; Mice ; Oxidative Stress ; drug effects ; Reperfusion Injury ; drug therapy ; Superoxide Dismutase ; metabolism
4.Diagnostic significance of detection of anti-citrullinated peptide antibodies in juvenile rheumatoid arthritis
Jin-Li RU ; Xiao-Feng LI ; Li-Yun ZHANG ; Hua WEI ; Xue-Fang HU ; Hong-Qing NIU ;
Chinese Journal of Rheumatology 2001;0(04):-
Objective To assess the diagnostic value of anti-cyclic citrullinated peptide antibody(an- ti-CCP),rheumatoid factor,anti-perinuclear factor(APF)and anti-keratin antibody(AKA)for juvenile rheumatoid arthritis(JRA)and compare it with rheumatoid arthritis(RA).Methods Anti-CCP was determined by ELISA in 54 serum samples of JRA patients,31 from patients with other rheumatic diseases and 116 RA patients.RF was determined in the same samples by latex agglutination test.APF and AKA were determined by indirect immunofluorescent assay.Results The sensitivity of anti-CCP,RF,APF and AKA was 61.1%, 57.4%,37.0% and 18.5% and their specificity was 96.8%,93.6%,96.8% and 100%,respectively for the diag- nosis of JRA.The sensitivity of anti-CCP resembleed that of RF,Anti-CCP was more sensitivity than APF and AKA in JRA.The sensitivity of anti-CCP,RF,APF and AKA was 82.3%,78.3%,48.7% and 25.4% and their specificity was 95.7%,73.7%,91.6%,94.0% respectively,for the diagnosis of RA.Anti-CCP,RF,APF and AKA were less sensitive in JRA than in RA.There was no statistical significance in specificity of these anti- bodies for the diagnosis of JRA and RA.Conclusion The detection of anti-CCP,RF,APF and AKA are use- ful for the diagnosis of JRA,but are less sensitive than in adults RA.
5.Finite element analysis of maxillary dentition retracted with implant anchorage with different curves of archwires
Hai-Bo LIU ; Xue FENG ; Xiao-Xue WU ; Qian-Nan NIU
Chinese Journal of Stomatology 2012;47(z1):132-136
Objective To investigate the biomechanical effects of micro-implant anchorage for en-masse retraction of the maxillary dentition with different curves of archwires.Methods The mobile trends were calculated when the curve of archwires were 5°,10°,15° on the basis of 3D finite element model.Results With the curve of archwire increasing from 5° to 15°,the torque in anterior teeth and posterior teeth increased gradually,and the intruding effect of anterior teeth and the extruding effect of posterior teeth increased gradually.Conclusions The torque of teeth could be changed effectively with different curve of archwires.The reverse-curve arch wire was suitable for correcting deep overbite caused by over developed anterior alveolar bone.According to the position of posterior teeth,the appropriate curve of archwires should be selected when the implant anchorage was used to retract the whole dentition.
6.Effects of extracts of root of kudzu vine on mammary gland and uterus development in rats.
Xiao-ou XUE ; Huan JIN ; Jian-zhao NIU ; Ji-feng WANG
China Journal of Chinese Materia Medica 2003;28(6):560-562
OBJECTIVETo study the effects of extracts of root of kudzu vine on mammary gland and uterus development in rats.
METHOD40 Wistar rats weighting 65-85 g were randomly divided into 4 groups: control group, estrogen group, extracts of root of kudzu vine group of high dose, extracts of root of kudzu vine group of low dose. (10 rats in each group). After having been treated for 7 days, the rats were killed; mammary glands and uterus were removed and weighed. Serum was isolated and kept at 4 degrees C for determination of hormones.
RESULT1. Administration of the root of kudzu vine significantly increased the weigh of mammary gland and uterus in rats. 2. Administration of the root of kudzu vine increased serum FSH, LH, E2 and decreased PRL.
CONCLUSIONExtracts of root of kudzu vine could enhance the weight of mammary gland and uterus growth in rats, which may provide experimental evidence for the development of new drug used for promoting mammary gland and uterus.
Animals ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Estradiol ; blood ; Female ; Follicle Stimulating Hormone ; blood ; Luteinizing Hormone ; blood ; Mammary Glands, Animal ; anatomy & histology ; growth & development ; Organ Size ; drug effects ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Prolactin ; blood ; Pueraria ; chemistry ; Rats ; Rats, Wistar ; Uterus ; anatomy & histology ; growth & development
8.Apoptosis of type II alveolar epithelial cell induced by bleomycin in lung fibrotic rat.
Lu KONG ; Yan-Qing GAO ; Ji-Feng WANG ; Jian-Zhao NIU ; Xue-Xi ZHANG
Acta Academiae Medicinae Sinicae 2007;29(6):782-786
OBJECTIVETo investigate the effects of bleomycin (BLM) on the apoptosis of type II alveolar epithelial cell (AT II) in lung fibrotic rats and its possible mechanisms.
METHODSTotally 32 male Sprague-Dawley rats were randomly divided into sham group (n = 8) and BLM group (n = 24). Rats in sham group or BLM group were intratracheally instillated with saline or 5 mg/kg of bleomycin, respectively. One, three, and seven days after the instillation of bleomycin, 8 rats in BLM group were taken for AT II isolation and purification. Rats in sham group were used to isolate and purify AT II on 7 days after the instillation of saline. The cell cycle and apoptosis, intracellular free calcium concentration, and mitochondrial membrane potential (MMP) in AT II were determined by flow cytometry. Immunohistochemistry was performed to observe the expressions of Bax, Bcl-2, and Fas. Caspase-3, Caspase-8, and Caspase-9 activities were measured by Caspase activity detection kit.
RESULTSThe ratio of S phase AT II in BLM group was significantly lower than in sham group (P < 0.05). AT II apoptosis rates on day 1 and 3 were significantly higher in BLM group than in sham group (P < 0.01). Intracellular free calcium concentrations in BLM group were significantly higher than in sham group (P < 0.05). However, MMP was significantly lower than sham group (P < 0.05). The positive rates of Bax, Fas and Caspase-3, Caspase-8, and Caspase-9 activities of BLM group were significantly higher than those of sham group (P < 0.05, P < 0.01). The positive rates of Bcl-2 on day 1 and 3 were significantly lower than those of sham group (P < 0.05).
CONCLUSIONEarly AT II apoptosis may be induced by bleomycin, which may be explained by the increase of intracellular free calcium concentration, depression of MMP, increased expressions of Fas and Bax, and increase of Caspase-3, Caspase-8, and Caspase-9 activities.
Alveolar Epithelial Cells ; drug effects ; metabolism ; pathology ; Animals ; Apoptosis ; drug effects ; Bleomycin ; pharmacology ; therapeutic use ; Caspase 3 ; metabolism ; Caspase 8 ; metabolism ; Caspase 9 ; metabolism ; Cell Cycle ; drug effects ; Fas Ligand Protein ; metabolism ; Male ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; Pulmonary Fibrosis ; drug therapy ; metabolism ; pathology ; Rats ; Rats, Sprague-Dawley ; bcl-2-Associated X Protein ; metabolism
9.Metabolic study of Mori Cortex on nephrogenic edema in rats
Ning ZHOU ; Xiao-Ke ZHENG ; Qiu-Hong WANG ; Hai-Xue KUANG ; Wei-Sheng FENG ; Yan NIU
Chinese Traditional Patent Medicine 2018;40(4):788-795
AIM To conduct a metabolic research for a better understanding of nephrogenic edema and to assess the integral efficacy of Mori Cortex in rat model.METHODS The serum creatinine,urea nitrogen,albumin and urinary protein levels in rats were detected.UPLC-QTOF-MS was used to detect the urine metabolites changes,Principal Component Analysis (PCA) and Orthogonal Partial Least Squares Discriminant Analysis (OPLS-DA)were used to screen potential biomarkers,after whose quantification,Mev software was adopted for heat map draw-ing and hierarchical cluster analysis.RESULTS The model rats manifested significantly increased levels of serum creatinine,urea nitrogen and urinary protein,decreased albumin level,and an obviously excessive amino acid metabolism as well.The 41 identified biomarkers were mainly related to disturbances in phenylalanine,pyrimidine,arginine and proline,glycine,serine and threonine,tryptophan,cysteine and methionine metabolism,and biosynthesis of pantothenic acid and coenzyme A.A reversal trend in aforementioned levels of biochemical indexes and most biomarkers due to the intervention by Mori Cortex signaled an improvement in the metabolic disorder,renal dysfunction and edema.CONCLUSION The metabolic study demonstrates the pathological status of nephrogenic edema and assesses the effect of Mori Cortex from an overall perspective,highlighting a new approach for illustrating Chinese medical syndrome and the underlying mechanism in the management of traditional Chinese medicine.
10.Unicompartmental knee arthroplasty versus total knee arthroplasty in the same patient with bilateral unicompartment knee osteoarthritis
Ming-Feng LU ; Ze-Hui LI ; Dong-Ping ZHU ; Xue-Wei CAO ; Wei NIU
Chinese Journal of Tissue Engineering Research 2018;22(3):343-349
BACKGROUND: In the treatment of unicompartmental knee osteoarthritis, unicompartmental knee arthroplasty (UKA) has the advantages of less blood loss, less trauma, quick recovery, maximum retention of bone mass, low cost, few complications and high patient satisfaction. However, it has not been extensively accepted by orthopedic surgeons. OBJECTIVE:To investigate the clinical effect and imaging changes of UKA versus total knee arthroplasty(TKA)in the same patient with bilateral unicompartment knee osteoarthritis. METHODS: A total of 38 patients with bilateral unicompartment knee osteoarthritis undergoing UKA and TKA were selected, and all the cases were performed by the same surgeon. Among them, 10 cases were replaced at the same time, and 28 cases were in staging surgery. The clinical data of the patients were collected, including the preoperative and postoperative Knee Society Score sores, the range of motion of the knee, and limb alignment, and postoperative complications. Comparison between bilateral knee joints was conducted by paired t test. RESULTS AND CONCLUSION: (1) All patients were followed up for 3-36 months, and no aseptic prosthesis loosening, unexplained pain or other complications occurred. (2) The postoperative Knee Society Score sores in UKA and TKA were significantly higher than those before surgery, and the scores did not differ significantly between UKA and TKA at each time point (P > 0.05). (3) The range of motion of the knee in the UKA group was significantly larger than that in the TKA group at the last follow-up postoperatively (P < 0.05). (4) The limb alignment was improved in both groups, which showed no significant difference at different time points (P > 0.05). (5) Totally 20 patients felt preference for UKA, 18 patients preferred TKA, and most patients were satisfied with the surgical efficacy. (6)There were no significant differences in the Knee Society Score, range of motion of the knee, hip-knee-ankle angle and femorotibial angle at the last follow-up between staging and same time arthroplasties. (7)These findings imply that for patients with bilateral unicompartment knee osteoarthritis, both UKA and TKA can correct the lower limb force line, correct the limb alignment similarly, but UKA holds advantages in less trauma, high patient's satisfaction, and good functional recovery, so it should be selected firstly. Notably, staging or same time surgery makes no effect on the clinical effectiveness.