Objective:To study the effects of dexamethasone(DEX)on the cytotoxicity and apoptosis of NK-92MI cells and the mechanisms involved.Methods:NK-92MI cells were treated with different doses of DEX.The proliferative rate and cytotoxicity of the NK-92MI cells were detected by MTT colorimetry.The cell apoptotic rate was observed by flow cytometry with Annexin V and propidium iodide(PI)double staining.The expression of apoptosis-related gene,Bcl-2 and Bax was detected by RT-PCR.Results:After treated with 1?10-8mol/L to 1?10-3mol/L of DEX for 24 h,48 h and 72 h,the proliferation of NK-92MI cells was significant inhibited(P

Endoscopy ; Gelatin ; Gentamicins ; administration & dosage ; Humans ; Paranasal Sinuses ; surgery ; Triamcinolone Acetonide ; administration & dosage ; Wound Healing ; drug effects

OBJECTIVE: To evaluate the efficacy of chinese traditional treatment after functional endoscopic sinus surgery (FESS) for patients with chronic sinusitis. METHOD: Eighty-eight cases of patients with chronic sinusitis were randomly divided into control group and treatment group after FESS and followed for 3 months. The control group received routine treatment. The treatment group received Chinese traditional treatment on the basis of routine treatment. VAS scores, Lund-Kennedy scores and Lund-Mackay scores were employed to conduct the subjective and objective assessment, comprehensively evaluate the clinical efficacy before and after treatment. RESULT: (1) After 3 months of treatment, the two groups of VAS scores and Lund-Mackay scores were significantly improved before treatment (P<0. 05). (2)After 3 months of treatment, the effectiveness of the control group was 81. 8%, treatment group was 97. 7%, the difference was statistically significant(P<0. 05). CONCLUSION Chinese traditional treatment after FESS can reduce postoperative mucosal edema and promote the postoperative recovery of sinus mucosal inflammation, is effective in preventing the recurrence of postoperative.
Chronic Disease ; Endoscopy ; Humans ; Medicine, Chinese Traditional ; Paranasal Sinuses ; surgery ; Postoperative Period ; Sinusitis ; drug therapy ; surgery ; Treatment Outcome

To observe the effects of Qishe Pill, a compound traditional Chinese herbal medicine, on lumbar vertebral bone formation induced by long-time upright posture in rats and to investigate the potential mechanism.

To study the efficacy and possible mechanism of Yiqi Huayu Recipe (YQHYR), a compound traditional Chinese herbal medicine, in preventing and treating degeneration of the articular cartilage in rats with osteoarthritis (OA).

OBJECTIVETo probe into the relationship of different needle-retained time with therapeutic effects.

METHODSForty experimental rats were evenly randomized into 5 groups, electroacupuncture (EA) at "Zusanli" (ST 36) for 5 min, 15 min, 30 min and 60 min groups, who received EA for 5, 15, 30 and 60 min respectively, and a control group who did not receive EA. Nicotinamide adenosine dinucleotide phosphate diaphorase (NADPH-d) method and computer image analysis system were used to detect the meangray of nitric oxide synthase (NOS) positive neurons in the septum.

RESULTSNOS positive neurons in the septum did not change as the EA for 5 min group compared with the control group (P > 0.05); the number of heavily staining NOS positive neurons increased significantly (P < 0.05) and the meangray of the NOS positive neurons significantly decreased (P < 0.01) in some septal subnuclei (lateral septum, and medial septum, vertical diagnonal band) after EA for 15, 30, 60 min as compared with the control group, and the numbers and the meangray of the NOS positive neurons in the septum were not significantly difference among the 3 EA groups.

CONCLUSIONNOS expression in the septum increases and keeps a same level from EA for 15 min to 60 min.

Acupuncture Points ; Animals ; Electroacupuncture ; Female ; Male ; Nitric Oxide Synthase ; analysis ; Rats ; Rats, Sprague-Dawley ; Septum of Brain ; enzymology

OBJECTIVETo explore the mechanism of electroacupuncture (EA) in the treatment of post-traumatic stress disorder (PTSD).

METHODSThirty male Sprague-Dawley rats were randomly divided into a normal group, a model group and an electroacupuncture group. The single prolonged stress (SPS) method was used to set up the PTSD models in latter two groups. After SPS Stimulation, EA group was treated with 2Hz electroacupuncture at Baihui (GV 20) and Zusanli (ST 36) for 30 min, once a day for a week. Reverse transcriptase polymerase chain reaction (RT-PCR) and immuno-histochemistry were used to detect the mRNA and protein expression of nNOS in the hippocampus of rats in the each group.

RESULTS(1) The nNOS mRNA expression in hippocampus in model group was higher than that in normal group (P < 0.05). But the expression in EA group was lower significantly than that in model group (P < 0.05). (2) The nNOS protein expression in hippocampus CA1 and CA3 in model group was higher than that in normal group (P < 0.05). But after electroacupuncture treatment, its expression in EA group was lower significantly than that in model group (P < 0.05). The nNOS protein expression in hippocampal CA2 had no difference among all three groups.

CONCLUSIONThe elevated nNOS expression in hippocampus may be involved in the pathological process of PTSD. Electroacupuncture play a down-regulation effects in the hippocampal nNOS expression, which may be one mechanism of electroacupuncture for treatment of PTSD.

Animals ; Electroacupuncture ; Hippocampus ; enzymology ; Humans ; Male ; Nitric Oxide Synthase Type I ; genetics ; metabolism ; Rats ; Rats, Sprague-Dawley ; Stress Disorders, Post-Traumatic ; enzymology ; genetics ; therapy

OBJECTIVETo explore method of recombinant gene lentivirus containing LIM mineralization protein-1 (LMP-1) in transfecting bone marrow mesenchymal stem cells (BMSC), and to observe the effect of gene LMP-1 on proliferation effect and expression of BMSC.

METHODSSix clean SD rats aged 4 weeks were selected, bone marrow mesenchymal stem cells were extracted under sterile conditions and cultured to the third generation, then divided into three groups:control group (the third generation of BMSC), lentiviral vector transfection group (PGC-FU-GFP and Polybrene were injected into the third generation of BMSC) and recombinant gene transfection group (PGC-FU-LMP-1-GFP and Polybrene transfection were injected into the third generation of BMSC). After 48 hours' transfection, fluorescent expression were detected under immuno-fluorescence microscopy; lentiviral transfection efficiency were detected by flow cytometry; effect of lentiviral transfection on BMSC were evaluated by MTT; gene expression of transfected cells were determined by Western Blot.

RESULTS1) The third generation of BMSC was cultured successfully,and transfected with MOI:100. After 48 hours, green fluorescent expression were detected and transfection efficiency was 67% under immuno-fluorescence microscopy; 2) Compared to control group, there were no statistical differences between control group and other two groups; 3) Western blot teast showed that 72KDa specific band was observed in recombinant gene transfection group and its size was similar to LMP-1 fusion protein (50 kDa+28 kDa=78 kDa).

CONCLUSIONThere is no effect of recombinant gene lentivirus containing LIM on BMSC, and can effectively influence the expression of LMP-1.

Adaptor Proteins, Signal Transducing ; genetics ; metabolism ; Animals ; Cell Proliferation ; Cells, Cultured ; Cytoskeletal Proteins ; genetics ; metabolism ; Female ; Genetic Therapy ; Genetic Vectors ; genetics ; metabolism ; Humans ; LIM Domain Proteins ; genetics ; metabolism ; Lentivirus ; genetics ; metabolism ; Male ; Mesenchymal Stromal Cells ; cytology ; metabolism ; virology ; Osteoporosis ; genetics ; physiopathology ; therapy ; Rats ; Rats, Sprague-Dawley

Objective To investigate the effect of a selective muscarinic receptor antagonist (penehyclidine hydrochloride) in three vessel occlusion model of acute global cerebral ischemia-reperfusion in rats.Method One hundred and forty-four male SD rats were randomly divided into four groups:sham operated group,vehicle treated group (saline 1 ml,i.p.),scopolamine treated group (0.01 mg/kg,i.p.) and penehyclidine hydrochloride treated group (0.01 mg/kg,i.p.) with drugs injected 40 minutes before ischemia respectively.The ischemic duration was 10 minutes.The animals were subjected to motor activity tests (open field activity test,beam-walking test and grip test) at 24 hours or on the 3rd and 7th day after reperfusion.HE staining,TUNEL staining and immunohistochemical reactions of bax and bel-2 were carried out at the time points of 2,12,24 hours,3 and 7 days after reperfusion.TTC staining was carried out in some rats for assessment of infarction volume on the 4th day after reperfusion.Results As compared with the vehicle treated group,both penehyclidine hydrochloride treatment and scopolamine treatment decreased the numbers of apeptotie neurons (P

OBJECTIVETo observe the changes in the expression of neuroal nitric oxide synthase (nNOS) and glial fibrillary acidic protein (GFAP) in dentate gyrus (DG) of rats with Parkinson's disease (PD) and effects of electroacupuncture (EA).

METHODSOn the 7th day of stereotactic injection with 6-hydroxydopamine into right medial forebrain bundle, apomorphine-induced rotation was carried out to select the PD rats. The selected 12 rats were randomly divided into a model group (n = 6) and an EA group (n = 6). Moreover a normal group was established (n = 6). Then, the rats in EA group were treated with EA at "Hegu" (LI 4) and "Taichong" (LR 3), once a day for 21 days, and the other groups without any treatment. After EA treatment, the expressions of nNOS and GFAP in right DG were examined by immunohistochemistry method.

RESULTSThe expression of nNOS in the right DG was weak in normal group, and the expression of nNOS in model group was significantly higher than that in normal group (P < 0.01), while in EA group, it was significantly lower than that in model (P < 0.01), with no difference between EA group and normal group (P > 0.05). The expression level of GFAP in model group was significantly higher than that in normal group (P < 0.01), while there was no difference in the number of GFAP positive cells between the above two groups (P > 0.05), and the number of GFAP positive cells in EA group was significantly increased compared with that in model group (P < 0.01), while with no significant difference in the expression level of GFAP between EA group and model group (P > 0.05).

CONCLUSIONEA can reverse the increase of nNOS expression and promote the activation of astrocyte in DG on the injured side in rats with PD.

Animals ; Astrocytes ; enzymology ; Dentate Gyrus ; cytology ; enzymology ; Electroacupuncture ; Humans ; Male ; Nitric Oxide Synthase ; genetics ; metabolism ; Parkinson Disease ; enzymology ; genetics ; therapy ; Rats ; Rats, Sprague-Dawley