1.Effects of intracoronary injection of nicorandil and tirofi ban on myocardial perfusion and short-term prognosis in elderly patients with acute ST-segment elevation myocardial infarction after emergency PCI
World Journal of Emergency Medicine 2020;11(3):157-163
BACKGROUND: This study investigated the effects of the intracoronary injection of nicorandil and
tirofiban on myocardial perfusion and short-term prognosis in elderly patients with acute ST-segment
elevation myocardial infarction (STEMI) after emergency percutaneous coronary intervention (PCI).
METHODS: Seventy-eight STEMI patients with age >65 years who underwent emergency
PCI were consecutively enrolled. These patients received conventional PCI and were randomly
divided into a control group and a treatment group (n=39 per group). The control group received an
intracoronary injection of tirofi ban followed by a maintenance infusion for 36 hours after surgery. The
treatment group received intracoronary injection of tirofiban and nicorandil, and then intravenous
infusion of tirofi ban and nicorandil 36 hours after surgery. The following parameters were measured:
TIMI grade, corrected TIMI frame count (cTFC), TIMI myocardial perfusion grade (TMPG), STsegment
resolution (STR) rate 2 hours post-operatively, resolution of ST-segment elevation (STR) at
2 hours postoperatively, peak level of serum CK-MB, left ventricular end diastolic diameter (LVEDD)
and left ventricular ejection fraction (LVEF) at 7–10 days postoperatively, and major adverse cardiac
events (MACEs) in-hospital and within 30 days post-operatively.
RESULTS: Compared with the control group, more patients in the treatment group had TIMI 3 and
TMPG 3, and STR after PCI was significantly higher. The treatment group also had significantly lower
cTFC, lower infarction relative artery (IRA), lower peak CK-MB, and no refl ow ratio after PCI. The treatment
group had signifi cantly higher LVEDD and LVEF but lower incidence of MACEs than the control group.
CONCLUSION: The intracoronary injection of nicorandil combined with tirofi ban can effectively
improve myocardial reperfusion in elderly STEMI patients after emergency PCI and improve shortterm
prognoses.
2.Improved CT measurement method in individualized pedicle screw placement
Wen XIONG ; Anmin CHEN ; Fengjin GUO
Orthopedic Journal of China 2006;0(24):-
[Objective]To prove the feasibility of using the distance between sagittal plane of the spinal process and the enter point to individualize the placing of pedicle screw.[Method]Thirty spine specimen were collected and divided into two groups,data were measured,such as the width of the pedicle,distance between the enter point and anterior border of the vertebra,distance between sagittal plane of the spinal process and the enter point,angle from the longitudinal axis of the pedicle to sagittal axis of the vertebra,angle from the longitudinal axis of the pedicle to vertical line of the operating table.In group one the pedicle screws were placed with the help of the distance between sagittal plane of the spinal process and the enter point,the other by the method advised by Ebraheim.CT scan was applied to evaluate the place of the screws,according to the perforation extent,they were classified into 4 grades:A=totally in the pedicle;B=perforation extent4mm.[Result]The individualized group showed much lower perforation rate than the traditional method group in T3~10,and similar in T1,T2,T11,12.[Conclusion]It can obviously improve the accuracy of the pedicle screw placement to use the distance between sagittal plane of the spinal process and the enter point to localize the enter point,especially when anatomic landmark such as articulationes zygapophysiales and transverse process change.
3.Antibiotic effect of lysostaphin on granulation wound
Li CHEN ; Li GUO ; Aibing XIONG
Journal of Third Military Medical University 2003;0(14):-
Objective To investigate the effect of lysostaphin on golden staphylococcal bacteria in vitro and on acestoma tissue.Methods Effects of lysostaphin on golden staphylococcal bacteria,Candida albicans and P.aeruginosa were detected by drug sensitivity test.Quantitative analysis of bacteria was used to detect the effect of lysostaphin on golden staphylococcal bacteria in 29 cases of 10%-30% TBSA.Results Most golden staphylococcal bacteria,as well as Candida albicans could be killed by lysostaphin.Lysostaphin had little effect on P.aeruginosa.Eighty-nine percent bacteria could be killed by lysostaphin after gauze with lysostaphin had been used for over 3 d,indicating lysostaphin may control bacteria quantity and improve survival rate of skin graft on granulation tissue.Gauze with lysostaphin contained biological enzymes and it had no systemic side effects.Conclusion Gauze with lysostaphin may be available on controlling golden staphylococcal bacteria as well as Candida albicans in burnt patients.Lysostaphin is effective in controlling residual trauma infected by golden staphylococcal bacteria.
4.A Theoretical Model for Targeting Therapy With the Particles of the Paramagnetic Nanometers-iron Nuclide Guided by Outside Magnetic Field
Ping GUO ; Ping XIONG ; Changqing GUO ; You CHEN ; Jishan HE
Chinese Journal of Medical Physics 2006;23(6):458-461
A theoretical model for the magnetic forces on ferromagnetic drug particles in a guiding magnetic field is established with the consideration of the electromagnetic field theory. Our model shows that the ferromagnetic drug particles can concentrate on the targeted area with the guidance of the outside magnetic field. Both the distribution of the intensity of the guiding magnetic field and the forces on ferromagnetic drug particles are studied numerically. The theoretical results are in good agreement with the experimental results reported recently.
5.Clinical analysis of epicanthus correction with two methods: Z-plasty and Y-V plasty.
Ming CHEN ; Meng XIONG ; Lei WANG ; Zongke GUO ; He LIN
Chinese Journal of Plastic Surgery 2016;32(1):21-25
OBJECTIVETo compare the clinical effects of different surgical methods for the epicanthus corrective surgery.
METHODSCanthoplasty with asymmetric Z-flap is applied in 46 cases, Y-V advancement procedure for epicanthoplasty is applied in 42 cases. The epicanthus aesthetic measurement were measured and calculated by software before and after surgery, the diameter of the iris was measured as a reference value,and the postoperative scar was assessed by VSS scale. At the same time, by measuring the lateral canthal distance, the accuracy of the measurement method can be verified.
RESULTSAll patients were satisfied with the long-term results and there were no recurrences of the epicanthal fold. The shortening ratio of the ICD is 8.36% in the group with the Z-plasty, and 5.88% in Y-V plasty. the lateral canthal distance have no diffrence before and after surgery.
CONCLUSIONSTwo surgical methods can get good results. The magnitude of correction in Z-plasty may larger than Y-V plasty, but postoperative retraction may existed in Z plasty.
Blepharoplasty ; methods ; Cicatrix ; Esthetics ; Eyelids ; surgery ; Humans ; Recurrence ; Software ; Surgical Flaps
6.Advances of transforming growth factor-β inhibitors.
Xiao-xiong GE ; Qi-fan ZHOU ; Guo-liang CHEN
Acta Pharmaceutica Sinica 2015;50(4):413-418
Transforming growth factor-β is an important cytokine with various bioactivities, including embryonic development, wound healing, chemotaxis and cell cycle regulation. Epithelial-mesenchymal transition (EMT) is the main pathway of tumor cell to obtain the ability of invasion and metastasis. The TGF-β is the key factor known to induce EMT in cancer cells and plays an important role in the process. In recent years, some progress has been obtained. Some TGF-β inhibitors have approved in the market or in clinical trials. TGF-β inhibitors can play an important role on the treatment of tumors, glaucoma, liver and kidney fibrosis disease and scar repair. Novel TGF-β inhibitors reported in recent years were reviewed in this article.
Epithelial-Mesenchymal Transition
;
Humans
;
Neoplasms
;
Transforming Growth Factor beta
;
antagonists & inhibitors
;
Wound Healing
7.Diagnosis and Treatment of the World's First Case of Human Avian Inlfuenza Infected by H10N8 Virus
Weichuan XIONG ; Yulin HE ; Chen YU ; Hong GUO ; Jianguo WAN
Chinese Journal of Medical Imaging 2015;(1):1-3
Purpose To evaluate the value of imaging on the diagnosis and treatment of human-infected H10N8 virus. Materials and Methods The chest X-ray and CT features of one case of human infected H10N8 virus were retrospectively studied. Results A 73-year-old female patient was admitted to the third affiliated hospital of Nanchang University on November 30, 2013 due to cough, sputum for 3 days and fever for 1 day. The patient was diagnosed with severe pulmonary infection and underwent chest CT on December 1, which showed large opacities with air bronchograms were in the lower lobe of her right lung and ground-glass exudative lesions in the lower lobe of the left lung;the next 24 h, 48 h and 72 h review tracking chest X-ray showed the chest lesions developed rapidly which involved more lobes with more areas, integration of lesions and plenty of pleural effusion in a very short time. This was a typical white lung sign of acute respiratory distress syndrome. The patient died later on December 6, which was reported as the case of human-infected avian influenza (H10N8 virus) by Chinese Center for Disease Control and Prevention. Conclusion The chest imaging features found in human infected H10N8 virus present as progressive opacities and exudative lesions.
8.Effect of hydrogen sulifde on the expression of CSE, NF-κB, and IL-8 mRNA in GES-1 cells withHelicobacter pylori infection
Canxia XU ; Yingchun WAN ; Tao GUO ; Xiong CHEN
Journal of Central South University(Medical Sciences) 2013;38(10):977-983
Objective: To investigate the effect of hydrogen sulifde (H2S) on the expression of CSE, NF-κB, and IL-8 mRNA in GES-1 cells withHelicobacter pylori (H. pylori) infection and to explore its mechanism on gastric mucosa inlfammation caused byH. pylori.
Methods: GES-1 cells were cultured for 24 h and divided into a control group (neitherH. pylori nor NaHS), anH. pylori group, a NaHS group (which was further divided into 4 groups at 50, 100, 200, or 400 μmol/L NaHS), andH. pylori + NaHS group (which was further divided into 4 groups at 50, 100, 200, or 400 μmol/L NaHS). Each group was then cultured for 3, 6, or 12 h. The expression of CSE, NF-κB, and IL-8 mRNA was measured by RT-PCR, and their correlation was analyzed. Results: The expression of CSE, NF-κB, and IL-8 mRNA in GES-1 cells in theH. pylori group was higher than that in the control group. The expression of CSE in the 200 μmol/L NaHS group and 400 μmol/L NaHS group was lower than that of the control group (P<0.05), whereas the expression of NF-κB and IL-8 in all NaHS groups had no statistical differences compared with the control group (P>0.05). The expression of CSE, NF-κB, and IL-8 mRNA in all groups of NaHS,H. pylori + 200 μmol/L NaHS group, andH. pylori + 400 μmol/L NaHS group was lower than that in theH. pylori group (P<0.05). There was positive correlation among the expressions of CSE, NF-κB, and IL-8 mRNA in theH. pylori group, theH. pylori + 200 μmol/L NaHS group, and theH. pylori +400 μmol/L NaHS group (P<0.05).
Conclusion:H. pylori can induce NF-κB and IL-8 mRNA expression and upregulate CSE mRNA expression. At 200 and 400 μmol/L, NaHS can suppressH. pylori-induced NF-κB and IL-8 mRNA expression and ameliorate the morphology ofH. pylori-induced GES-1 injury, which may protect gastric epithelial cells byH. pylori infection.
9.Comparison between the methods for determing the entrapment efficiency of Nobiliside-A liposome
Dan GUO ; Yang XIONG ; Peng SUN ; Lili CUI ; Jianming CHEN
Chinese Traditional Patent Medicine 1992;0(02):-
AIM:To establish a method for determing the entrapment efficiency(EE) of Nobiliside-A liposome. METHODS: Sephadex G-50 column filtration method and microcolumn centrifugation method were employed to separate the free drug and liposome. In order to select a better method to determine the entrapment efficiency of Nobiliside-A liposome. RESULTS: The two methods to determine the entrapment efficiency of the Nobiliside-A liposome got the similar results. CONCLUSION: In order to determine the entrapment efficiency of Nobiliside-A liposome conveniently and rapidly, we finally select microcolumn centrifugation method.
10.The probable pathway of low concentration of ouabain on intracellular calcium elevation in guinea ventricular mycytes
Chen XIONG ; Yanzhao WU ; Huicai GUO ; Yongli WANG
Chinese Pharmacological Bulletin 2003;0(10):-
Aim To observe the effects of low concentration ouabain(OUA)on intracellular calcium concentration ([Ca2+]i) were investigated in guinea pig ventricular myocytes.Methods The guinea-pig ventricular myocytes were obtained by enzymatic dissociation technique, then were incubated with Fluo3-AM. The Fluo3-AM fluorescent signal was detected with confocal laser scanning microscopy. The change of [Ca2+]i was represented by the percentage of fluorescence intensity change [(FI-FI0)/FI0,%] (FI: fluorescent intensity after addimg OUA, FI0: control). Results In normal Tyrode,s solution and Ca2+-free Tyrode′s solution.OUA (1?10-9~1?10-6 mol?L-1)elevated [Ca2+]i in a concentration-dependent manner, in normal Tyrode′s solution by 16.7?6.8(P0.05).Genistein (GST) (1、10、50、100 ?mol?L-1)abolished the OUA-induced increases in[Ca2+]i in a concentration-dependent manner by 17.5?3.1、14.2?8.9、0.8?7.6(P