1.Study on Mechanism of Scalp Electro-acupuncture in Treating Ischemic Stroke Based on CT Localization
Wenmin NIU ; Zhongren LI ; Yuanchun XIAO
Journal of Acupuncture and Tuina Science 2006;4(6):333-335
To investigate an effective method of treating ischemic stroke. Methods:The scalp area corresponding to the ischemic focus was electro-acupunctured by craniocerebral CT localization. Cerebral blood flow and blood rheology were measured. Results:The curative effect and changes in cerebral blood flow and hemorheologic indices were better in the observation group than in the control group (P<0.05). Conclusion:Scalp electro-acupuncture based on CT localization is an effective method of treating ischemic stroke.
2.Preliminary implementation and effect of clinical pathways for chronic Keshan disease in endemic areas
Chinese Journal of Endemiology 2013;32(5):500-503
Objective This present study explores and evaluates the effect of preliminary implementation in the clinical therapy programs for patients with chronic Keshan disease (CKD) in the disease seriously-affected endemic areas.Methods In 2010,seventy-six CKD patients with heart failure were chosen from Huangling and Xunyi Counties in Shaanxi Province,where incidences of CKD were high.Besides taking sodium selenite,all patients were given treatment with fixed prescription,which included angiotensin-converting enzyme inhibitor (captopril),β-blocker (propranolol),diuretics (hydrochlorothiazide,spironolactone) and cardiac (digoxin) for 4 months.The changes before and after treatment were analyzed,which included the changes of heart function by the United States of America New York Heart Association(NYHA) fractionation,cardiothoracic ratio,electrocardiogram,left ventricular ejection fraction(EF) and fractional shortening(FS).The therapeutic effect was subsequently evaluated.Results Seventy-four cases of the seventy-six CKD patients completed the treatment observation.The improvement rate of heart function was 81.1% (60/74) after treatment.The elimination rates of ectopic rhythm,conduction block and ST-T changes were 37.5% (9/24),2.7% (1/36) and 26.9% (7/26),respectively.The cardiothoracic ratios of heart function NYHA Ⅱ,Ⅲ and Ⅳ were 0.504 ± 0.051,0.572 ± 0.054 and 0.632 ± 0.063 before treatment.After treatment,the cardiothoracic ratios were 0.486 ± 0.048,0.538 ± 0.046 and 0.607 ± 0.048,which were reduced in all groups (t =2.643,6.641,3.005,all P < 0.05),while the D-value of cardiothoracic ratio changes before and after treatment was not significantly different(F =3.005,P > 0.05).Both the mild reduction group(35%≤EF < 50%) and the moderate-severe group(EF < 35%) EF were (43.62 ± 4.58)%,(27.57 ± 3.69)% before treatment and were (48.21 ± 10.01)%,(36.57 ± 6.60)% after treatment,EF were increased in the two groups,while the changes before and after treatment were significantly different(t =-2.911,-3.334,all P< 0.05).The EF D-value of the two groups was (4.59 ± 8.48)% before treatment and was (9.00 ± 7.14)% after treatment,which were not significantly different(P > 0.05).FS was higher compared with pre-treatment in FS reduction group(FS < 25%) and the changes before and after treatment[(19.75 ± 2.88)%,(21.92 ± 5.67)%] were significantly different(t =-2.297,P < 0.05).Conclusions This study shows that the feasibility of clinical treatment of patients with CKD is very promising.The treatment of fixed prescription is effective.
3.Research progress of hypoxia-inducible factor 1 inhibitors against tumors.
Fei NIU ; Yan LI ; Fang-Fang LAI ; Xiao-Guang CHEN
Acta Pharmaceutica Sinica 2014;49(6):832-836
Hypoxia occurs in chronic and acute vascular diseases and tumor formation. The ability of tumor cells to maintain a balance between an adaptation to hypoxia and cell death is regulated by a family of transcription factors called hypoxia-inducible factor 1 (HIF-1). Tumor hypoxia mediated by HIF-1 would facilitate the likelihood of resistance to chemotherapy and radiotherapy, proliferation, metastasis and the invasive potential; all of which culminate in a decrease in patient survival. And HIF-1 alpha subunit decides the activity of HIF-1, which is regulated by oxygen. So understanding the role of HIF in signal pathway, drug resistance mechanism and its feature is crucial for developing novel anticancer therapies. In recent years, more attentions have focused on HIF-1 alpha inhibitors. It is expected that development of more potent and selective HIF inhibitors will provide an effective treatment of cancer and other HIF-related diseases. So we will focus on the biological characteristics and mechanism of HIF-1 to review currently studied HIF-1 inhibitors.
Cell Death
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Humans
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Hypoxia-Inducible Factor 1
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antagonists & inhibitors
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metabolism
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Hypoxia-Inducible Factor 1, alpha Subunit
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antagonists & inhibitors
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metabolism
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Neoplasms
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drug therapy
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Oxygen
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metabolism
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Signal Transduction
4.Application of endosseous dental implant on restoration of tooth loss
Qiao WANG ; Jianmin DUAN ; Shuming NIU ; Xiao LI
Medical Journal of Chinese People's Liberation Army 1982;0(01):-
Objective To retrospectively analyze the indication of endosseous dental implant,evaluate the effectiveness of clinical application of endosseous dental implant for tooth loss,and study the possible factors which may affect the success rate of implant denture.Methods One hundred and fifty-seven endosseous dental implants in 94 patients were followed up for 4 months to 8 years.The indications of endosseous dental implant were studied based on the changes in the distribution of dental implants in jawbone.The success rate of osseointegration and restoration of the endosseous dental implant were evaluated by checking the soft tissue around the implants,the stability of the implants,the bone resorption around the implants,and the degree of stability against rotation of the implants.Results The rate of performing endosseous dental implant for restoration of full-mouth anodontia was 7.6%,the rate of endosseous dental implant used in the free end anodontia was 25.5%,and it was 66.9% in non-free end anodontia.The success rate of osseointegration in the endosseous dental implant was 98.1%,and 5 years after prosthesis the success ratio of the endosseous dental implant was 93.8%.The success ratio of the endosseous dental implants which the primary stability(anti-rotation torsion)
5.Clinical research of protein-free calf blood extract eye gel for corneal epithelial defect
Xiao-Xia, NIU ; Yun-Feng, LI ; Lu-Yang, ZHAN
International Eye Science 2014;(7):1313-1315
AlM: To evaluate the clinical effect of 200g/L protein-free calf blood extract eye gel for corneal epithelial defect.METHODS: One hundred and sixty - eight cases of corneal epithelial defect ( 58 cases with herpes simplex keratitis; 24 cases with chemical injury; 85 cases with pterygium operation injury ) were randomly divided into two groups: 84 eyes were treated with protein-free calf blood extract eye gel; 84 cases were treated with basic fibroblast growth factor eye gel ( bFGF ) . The bFGF and protein-free calf blood extract eye gels were used 4 times a day. The treatment course was 7d. Epithelial defect restoration, local symptom and sign were observed.
RESULTS: The difference between pre-treatment and post-treatment was significant ( P<0. 01 ) in the two groups. The effect of protein-free calf blood extract eye gel (83. 3%) group was prior to that of bFGF (69%) for corneal epithelial defect. The effective rate of protein-free calf blood extract eye gel in the herpes simplex keratitis, chemical injury and pterygium operation injury was 72. 4%,69. 2% and 95. 2%. Localized stimulus and adverse reaction of all over the body were not been observed.
CONCLUSlON: Protein-free calf blood extract eye gels is valuable and safe for corneal epithelial defect.
6.A novel HIF-1 inhibitor--manassantin A derivative LXY6099 inhibits tumor growth.
Fang-Fang LAI ; Xiao-Yu LIU ; Fei NIU ; Li-Wei LANG ; Ping XIE ; Xiao-Guang CHEN
Acta Pharmaceutica Sinica 2014;49(5):622-626
Hypoxia-inducible factor-1 (HIF-1) is a key transcription factor on hypoxia responses in mammalian tissues. HIF-1 plays as a positive factor in solid tumor and leads to hypoxia-driven responses that enhance its downstream gene expression for tumor growth and survival. LXY6099 was obtained by the structural modification and optimization of manassantin A (MA) as a high potent HIF-1 inhibitor. Antitumor activity of LXY6099 was observed in this study. LXY6099 with an IC50 value of 2.46 x 10(-10) mol x L(-1) showed more sensitive inhibition activity to HIF-1 than that of MA detected by reporter gene assay (> 100 folds). It showed strong inhibition on the growth of human solid tumor cell lines. Furthermore, LXY6099 exhibited significant antitumor activity against established human tumor xenografts in nu/nu mice with treatment of MX-1 breast cancer. Thus, LXY6099 as a novel HIF-1 inhibitor could be further developed into anti-cancer agents.
Animals
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Antineoplastic Agents
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pharmacology
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Breast Neoplasms
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metabolism
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Cell Line, Tumor
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Gene Expression Regulation, Neoplastic
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Heterografts
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Humans
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Hypoxia-Inducible Factor 1
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metabolism
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Lignans
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pharmacology
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Mice, Nude
7.Perioperative treatment effects of colorectal cancer in elderly patients
Fanghong LI ; Zhixia LI ; Dali AN ; Xiao CHEN ; Xiaohu ZHANG ; Guanqun LI ; Xu NIU
Chinese Journal of Geriatrics 2010;29(3):226-228
Objective To explore the clinical features and perioperative treatment effects of colorectal cancer in elderly patients.Methods Retrospective analysis of clinical data especially focusing on perioperative treatment from 104 elderly patients with coloreetal cancer were performed.Results A total of 99 patients (95.2%) were cured or improved at discharge.Perioperative pulmonary infection occurred in 13 cases (12.5%), of whom 6 cases (5.8%) suffered from respiratory failure.Lower extremity deep venous thrombosis occurred in 3 cases (2.9%), incision infection in 6 cases (5.8%), wound dehiscence in 2 cases (1.9%), intestinal fistula in 1 case (1.0%) and gastroparesis in 1 case (1.0%).About 5 cases (4.8%) died from multiple organ failure.Conclusions Old age is not a contraindication in surgical treatment for colorectal cancer.Paying attention to accurate and timely treatment in perioperative peroid can reduce postoperative complications and improve patients' quality of life.
8.Effect of minocycline on glutamate uptake in periventricular zone of neo-natal rats after hypoxia
Hongchun LI ; Xia LI ; Xuetao MA ; Jie XIAO ; Zhirui NIU ; Lei FENG ; Fan LI
Chinese Journal of Pathophysiology 2016;32(2):290-295
AIM:To investigate the role of minocycline on glutamate uptake in the periventricular zone and its putative mechanism after hypoxic exposure in neonatal rats.METHODS: A model of hypoxic-ischemic brain damage (HIBD) was developed by putting postnatal 1 d rat pups in 5%O2 for 3.5 h.The glutamate level in periventricular zone was measured by liquid chromatography coupled with tandem mass spectrometry assay ( LC-MS/MS) after hypoxic exposure for 4 h and 1 d.The dynamic changes of glutamate transporters EAAT1, and EAAT2 during developmental period in periventricular zone were determined by Western blot.Moreover, the expression of EAAT1, EAAT2, Iba-1, IL-1β, TNF-αand TGF-β1 was also detected by Western blot after hypoxic exposure for 4 h and 1 d in that region.The effects of mino-cycline on all parameters mentioned above were tested after minocycline treatment at the same time points and in the same region.RESULTS:After hypoxic exposure, glutamate level was increased, but it was decreased after minocycline treat-ment.EAAT1 and EAAT2 kept a low expression level at the first postnatal week, but a predominant elevation was found at the end of the second postnatal week.The expression of EAAT1, EAAT2, Iba-1, IL-1βand TGF-β1 was increased at 1 d after hypoxic exposure.EAAT1 and TNF-αexpression was significantly up-regulated, while EAAT2 was down-regulated af-ter minocycline treatment.CONCLUSION: Minocycline inhibits the increase in the glutamate level after hypoxia in periventricular region of the neonatal rats.The mechanism may relate to the selective regulation of glutamate transporters, rather than the inhibition of neuroinflammation in periventricular zone.
9.On Key issues of Public Hospitals Reform
Haichao LEI ; Guang SHI ; Ying WU ; Hongli NIU ; Xiao WEI ; Xiaoyuan ZHOU ; Zhongyuan LI ; Chunyan XIE
Chinese Journal of Hospital Administration 2010;26(4):241-243
Public hospital reform pilots have been initiated recently and it is necessary to clarify some key issues. To this end, thispaper touches upon six fundamental issues, discussing the generality and value for the existence of public hospitals, differences between reforms of public hospital and those of state-owned enterprise, the public financing for and regulation on public hospitals, relationship with the private sector, as well as service and function positioning of public hospitals.
10.Effect of controlled hypotenston with nitroglycerin on intraocular pressure during gynecological laparoscoplc surgery
Haitao LAN ; Jinzhu NIU ; Kun LI ; Yun WANG ; Xiao DONG ; Shuzhi FANG ; Jianping LIU
Chinese Journal of Anesthesiology 2012;32(5):535-537
Objective To investigate the effect of controlled hypotension with nitroglycerin on intraocular pressure(IOP)during gynecological laparoscopic surgery.Methods Forty ASA Ⅰ or Ⅱ patients,aged 25-55 yr,weighing 55-70 kg,undergoing gynecological laparoscopic surgery,were randomly divided into 2 groups(n =20 each):control group(group C)and controlled hypotension with nitroglycerin group(group N).Anesthesia was induced with iv injection of midaaolam 0.1 mg/kg,fentanyl 3 μg/kg,vecuronium 0.1 mg/kg and etomidate 0.3 mg/kg and maintained with iv infusion of propofol at 8 mg· kg-1 · h-1 and vecuronium at 0.1 mg· kg 1 · h-1.Additional fentanyl 2 μg/kg was injected intravenously at 3 min before the starting of surgery.The patients was tracheal intuhated and mechanically ventilation.PETCO2 was maintained at 35-40 mm Hg.BIS value was maintained at 50-60.Controlled hypotension was induced by infusion of nitroglycerin at 2-4 μg· kg-1 · min-1 after the starting of surgery.CVP was maintained at 12-14 cm H2 O.Controlled hypotension was stopped at the end of operation.IOP and CVP were recorded before induction(To),at 3 min after tracheal intubation(T1),at 10,30,60,90 and 120 m in of pneumoperitoneum(T2-6)and at 10 min after pneumoperitoneum(T7).Intraocular hypertension(IOP > 21mm Hg)was also recorded.Results Compared with group C,IOP at T3-6 and CVP at T2-6 were significantly decreased,and the incidence of intraocular hypertension was also decreased in group N(P < 0.01).Conclusion Controlled hypotesion with nitroglycerin can prevent the intraocular hypertension effectively during gynecological laparoscopic surgery.