Objective: To explore the effect of emergency operation of ruptured anterior circulation aneurysms. Methods: Fifty-one patients with ruptured anterior circulation aneurysms, who present with spontaneous subarachnoid hemorrhage (SAH), were classified according to Hunt-Hess grade. All patients had CT scanning and three-dimensional spiral CT angiography (CTA) first, and then they had global digital subtraction angiography. The aneurysms were treated with emergent surgery and evacuation of intracranio-hematoma. Results: Fifty-five aneurysms were detected by CTA, among them 26 were internal carotid-posterior communicating artery aneurysms, 20 were anterior communicating artery aneurysms, 5 were middle cerebral artery aneurysms, and 4 were internal carotid-anterior choroidal artery aneurysms. Fifty-one aneurysms were clipped, and 4 were wrapped. The follow up period was 4 to 36 months, 42 patients had good outcome, 7 had moderate disability, I lived in a vegetative state, and I died. Conclusion: The effect of emergency surgery is good for patients with ruptured anterior circulation aneurysms (Hunt-Hess grade I to IV).

Objective To evaluate the murine model of dry eye induced by hyperosmolar saline. Methods Sixty female BALB/c mice at the age of 6 -8 weeks were randomly divided into blank group,control group and experimental group,20 in each group. Mice in control and experimental groups were treated with 308 mOsmol/L and 500 mOsmol/L sodium chloride solution,respectively,5 times a day. Mice in blank group were not treated with sodium chloride solution. Schirmer test,fluorescein staining,corneal scoring,rose bengal staining,tear ferns experiment,corneal epithelial HE staining and thickness measurement,conjunctival epithelial PAS staining and Goblet cell counting were conducted on days 0,7,14,28,and 42,respectively. Corneal surface was observed by scanning electron microscopy on day 42. Results No significant difference was found in the above parameters on day 0 between the two groups. On day 7,the volume of tears was significantly smaller in experimental group ( 2. 3 ? 0. 4 mm) than in blank group ( 3. 0 ? 0. 5mm) and control group ( 3. 1 ?0. 5 mm) ( P

Carbon Monoxide ; analysis ; Spectroscopy, Fourier Transform Infrared ; methods

Objective To investigate the clinical value of ~(99)Tc~m-ethylenedicysteine (EC) diuretic renography (DR) in pre-and post-operative pediatric congenital hydronephrosis.Methods The DR with injection of Furosemide at 15 min of forty children with hydronephrosis was retrospectively studied.The preoperative renal blood perfusion rate (BPR),effective renal plasma flow (ERPF),grade of hydronephrosis,renogram and renal dynamic imaging of pre- and post-operative kidneys were compared.The t-test and Mann-Whitney test were used for data analysis.Results (1) Of 40 pathological kidneys,the BPR increased 5.99% (t=-5.13,P＜0.01)from pre-operative to post-operative:(34.05±11.07)% to (40.04±8.56)%.The ERPF increased 12.48 ml/min(t=-4.35,P＜0.01) from pre-operative to post-operative:(57.81±34.32)ml/min to(70.29±5.37)ml/min.(2)The grade of hydronephrosis of 40 pathological kidneys improved significantly(Z=-2.64,P＜0.01) with the mean sum of ranks of 47.21 pre-operatively to 33.79 post-operatively.(3) As the hydronephrosis worsened,the collecting system became bigger,the renal parenchyma became thinner,the extent of intrarenal parenchymal photopenia became larger and the response to diuretic challenge in pathological kidneys decreased or became totally irresponsive.(4)Thirty-seven cases of obstruction at ureteropelvic junction (UPJO) and 3 cases at ureterovesical junction (UVJO) were diagnosed by DR,which were all confirmed by surgery.Conclusions DR is a reliable method to evaluate pediatric congenital hydronephrosis.It can accurately reflect the grade and (or) severity of the disease,guide therapy and assess the therapeutic success of operation.

OBJECTIVETo explore the mechanism of miR-124 inhibiting the proliferative activity of prostate cancer PC3 cells.

METHODSLuciferase reporter gene assay was used to examine the specific binding ability of miR-124 to PKM2 mRNA 3'-UTR. After miR-124 was transfected mimic to PC3 cells, the expression levels of PKM2 mRNA and protein were detected by real-time fluorescence quantitative PCR (qRT-PCR) and Western blot, respectively. The effects of miR-124 mimic and PKM2 siRNA on the proliferative activity of the PC3 cells were determined by MTT assay.

RESULTSThe expressions of PKM2 mRNA and protein were upregulated (5.12 +/- 0.35) times and (4.05 +/- 0.20) times respectively in the PC3 cells as compared with those in the RWPE-1 cells (P < 0.05). Luciferase reporter gene assay demonstrated that miR-124 targeted PKM2 3'-UTR. At 24 hours after transfection with miR-124 mimic, the PKM2 protein expression in the PC3 cells was downregulated (0.16 +/- 0.04) times (P < 0.05), while the PKM2 mRNA level was not changed significantly (P > 0.05), as compared with the control group. MTT assay showed that both miRNA-124 mimic and PKM2 siRNA could inhibit the proliferation of the PC3 cells, but the former exhibited a greater inhibitory effect than the latter. After transfection with miR-124 mimic and PKM2 siRNA, the cell growth rates were (66.20 +/- 5.10)% vs (82.10 +/- 6.35)% at 24 hours (P < 0.05) and (49.34 +/- 2.37)% vs (70.10 +/- 5.80)% at 48 hours (P < 0.05).

CONCLUSIONmiR-124 can suppress the proliferation of PC3 cells by regulating the PKM2 gene.

Carrier Proteins ; genetics ; metabolism ; Cell Line, Tumor ; Cell Proliferation ; genetics ; Humans ; Male ; Membrane Proteins ; genetics ; metabolism ; MicroRNAs ; genetics ; Prostatic Neoplasms ; genetics ; metabolism ; pathology ; Thyroid Hormones ; genetics ; metabolism ; Transfection

Objective To investigate the changes of iodide uptake and the expression of thyroidspecific genes in poorly differentiated follicular thyroid carcinoma (FTC) cells after transfection of human TSH receptor (hTSHR) gene in vitro. Methods The recombinant eukaryotic expression plasmid PcDNA3. 1/hTSHR-cDNA was transformed into DH5a bacterial for amplification and then the recombinant plasmid was extracted. The recombinant was identified with PCR amplifying, restriction enzyme digestion analysis and DNA sequencing. The recombinant plasmid pcDNA3.1/hTSHR was transfected into FTC-133 cell line by lipofectin methodin vitro. Immunofluorescence, iodide uptake studies and real time-PCR were applied to detect target protein expression. Statistical analysis was performed with t-test using SPSS 13. 0 software. Results Kpn Ⅰ and Xba Ⅰ restriction enzyme digestion, PCR amplifying and DNA sequencing confirmed that pcDNA3. 1/hTSHR was successfully constructed. After transfection of the recombinant plasmid pcDNA3. 1/hTSHR-cDNA and the stimulation of hTSH, the tumor cells displayed the expression of hTSHR protein at cell surface and cytoplasm. The iodine uptake in pcDNA3. 1/hTSHR transfected cells was 2. 9 times higher than that of control(pcDNA3.1(+) transfected cells) group(t = 28.63, P ＜0. 01). The expression of TSHR,NIS, TPO and Tg (mRNA levels) in pcDNA3. 1/hTSHR transfected cells were also significantly elevated by 1.74 (t =5.959, P＜0.01), 7.2 (t =3.807,P＜0.05), 2.88 (t=4.769,P＜0. 01) and 2.67 times (t=6.388,P ＜0.01) respectively compared to those of the control group. Conclusion The study demonstrates that iodide uptake may be reactivated by hTSHR receptor gene transfection in poorly differentiated FTC cell.

OBJECTIVETo study the subcellular localization of severe fever with thrombocytopenia syndrome virus (SFTSV) in macrophages and understand the replication and assembly mechanism of SFTSV in host cells.

METHODSUsing two types of human macrophage cell lines THP-1 and U937, the study analyzed the intracellular colocalization of SFTSV with Golgi apparatus and endoplasmic reticulum by immunefluorescence staining and confocal microscopy.

RESULTSSFTSV infected macrophage cell lines THP-1 and U937. Immunofluorescence staining showed that the SFTSV nuclear protein colocalized with Golgi apparatus and closely surrounded by endoplasmic reticulum in the perinuclear region.

CONCLUSIONThe results suggested that Golgi complex and endoplasmic reticulum are probably the sites for formation and maturation of SFTSV viral particles.

Bunyaviridae ; isolation & purification ; Cell Line, Tumor ; Endoplasmic Reticulum ; virology ; Fever ; virology ; Golgi Apparatus ; virology ; Humans ; Macrophages ; virology ; Thrombocytopenia ; virology

H4IIE hepatoma cells transfected by recombinant adiponectin adeno-associated virus vectors were effectively mediated adiponectin gene expression and enhanced the ability of suppressing glucose production of H4IIE cells at low concentration of insulin.Improvement of the insulin sensitivity in hepatocytes may contribute to the glucose-lowering effect of adiponectin.

OBJECTIVETo study the effect of the degree of muscle relaxation on motor-evoked potential elicited by transcranial electrical stimulation in patients undergoing spine surgery.

METHODSSixty ASA I or II patients undergoing spine surgery were randomly divided into 5 groups (n=12). After an initial intubation, continuous cisatracurium infusion was administered with continuous monitoring of T1. The infusion dose was adjusted according muscle relaxation monitoring, and different muscle relaxation degrees were maintained in the 5 groups. The band and latency of D1 in motor-evoked potential was observed with also subjective assessment of the muscle relaxation.

RESULTSSignificant differences in the band and latency were noted in groups I and II compared with the reference values, but not in groups III, IV and V. Subjective assessment revealed significant differences between groups IV and V and groups I and III in terms of the number of cases with poor muscle relaxation.

CONCLUSIONT1 value between 10% and 15% is sufficient for MEP monitoring and allows the maintenance of good muscle relaxation during spine surgery.

Atracurium ; therapeutic use ; Electric Stimulation ; Evoked Potentials, Motor ; Humans ; Monitoring, Intraoperative ; Muscle Relaxation ; Neuromuscular Nondepolarizing Agents ; therapeutic use ; Orthopedic Procedures ; methods ; Spine ; surgery

OBJECTIVETo develop a method for determining artemisinin in rat plasma in vivo.

METHODHPLC-MS was adopted. Estazolam was selected as an internal standard (I.S.). The sample and I.S. were extracted using methyl tertbutyl ether and measured at m/z of 305 and 296, respectively.

RESULTWithin the linear range of 5-500 microg x L(-1), the ratio of artemisinin's peak area and I.S. peak area and the concentration showed good linearity, thus the minimum concentration was set to be 5 mictrog x L(-1).

CONCLUSIONThe methodology proved that the method is so suitable for determining the drug concentration in rat blood that it can be used for studying pharmacokinetics in animals.

Animals ; Artemisinins ; pharmacokinetics ; Chromatography, High Pressure Liquid ; Mass Spectrometry ; Rats