ObjectiveTo investigate the success rate and energy requirements of ibutilide and direct current(DC)cardioversion,summarize the nursing experience.MethodsForty-six patients with persistent atrial fibrillation were enrolled and underwent DC cardioversion were selelct from May 2009 to January 2011.23 patients received pretreatment with ibutilide before DC (the ibutilide group),23 patients received non drugs before DC (the control group).The cardioversion energy started at 100 J and increased if patients could not acquire sinus rhythm.All the patients were given pertinent care before,during and posttreatment.The success rate and energy requirements of the two groups were compared.Results95.7％ of the patients were successfully cardioverted in the ibutilide group,which was significantly higher than 74.0％ of the control group.The energy required for cardioversion was ( 139.1±45.1 ) J in the ibutilide group,significantly lower than (197.8±53.3) J in the control group.Non patients terminated treatment or appeared complication because of improper nursing.ConclusionsPretreatment with ibutilide enhanced the efficacy of DC cardioversion for the patients with persistent AF at lower energy requirements.Proper nursing care can ensure the smooth process of treatment and decrease the complications.

Silybum marianum (L.) Gaertn. is recorded by the pharmacopoeias of many countries to have such bioactivities as antioxidant, anti-hepatocirrhosis, anti-inflammation, immunomodulation and liver regeneration. It has been used clinically to treat hepatitis, fatty liver, liver cirrhosis, ischemic damage, radiation injury, etc. With silybin entering the phase II clinical trial as an anti-cancer drug, its correlative investigations including derivatives preparation, structure-activity relationship (SAR) detection, and the detailed action mechanisms have been developing rapidly. Recently, the new synthetic strategy of silybin and dehydrosilybin (DHS) along with their anti-HSV (herpes simple virus) activity has also been reported. This paper reviews about one hundred preparative derivatives of silybin and DHS which appeared in recent years, with the emphasis on their pharmacological activity and the results of their SAR. The future development direction of structural modification of silybin and DHS is also discussed and predicted.

Objective: To develop an HPLC method for the simultaneous determination of eight saponins in alkali hydrolysate of total saponins from Pulsatilla chinensis. Methods: HPLC was performed on a Kromasil C18 analytical column (250 mm × 4.6 mm, 5.0 μm) at 35°C with MeOH-0.2% HCOOH solution as the mobile phase by gradient elution and the step gradients were as follows: 0-30 min, 70%-100% MeOH; The flow rate was 1.0 mL/min; ELSD gasification chamber temperature was 40°C; Gas pressure of carrier gas N2 was 350 kPa. Results: The linear response (the log values of peak areas with corresponding log values of sample introducing amounts) ranges were 0.799-4.568 μg for pulsatilla saponin D, 0.563-6.756 μg for hederagenin 3-O-β-D-glucopyranosyl-(1→4)-α-L-arabinopyranoside, 0.431-2.683 μg for pulsatilla saponin A, 0.894-7.826 μg for hederacolchiside A1, 0.643-7.504 μg for pulsatilla saponin F, 1.351-7.822 μg for oleanolic acid 3-O-β-D-glucopyranosyl-(1→4)-β-D-glucopyranosyl - (1→3)-α-L-rhamnopyranosyl-(1→2) - α-L-arabinopyranoside, 0.629-2.515 μg for oleanolic acid 3-O-β-D-glucopyranosyl-(1→3)-α-L-rhamnopyranosyl - (1→2)-α-L-arabinopyranoside, and 0.698-2.794 μg for oleanolic acid 3-O-α-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranoside, respectively (n = 5). The average recoveries of the eight saponins were between 99.0% and 101.0%, and RSD values were less than 1.5%. Conclusion: The results demonstrate that the established method has the adequate accuracy and selectivity for the quality control of alkali hydrolysate of total saponins from P. chinensis.

Adult ; Female ; Humans ; Male ; Middle Aged ; Parathyroid Neoplasms ; diagnostic imaging ; surgery ; Retrospective Studies ; Ultrasonography

Objective To discuss the treatment of cranialfacial fibrous dysplasia. Methods The treatment of 10 cases of cranialfacial fibrous dysplasia was analyzed. Results The cosmetic deformity was corrected in all the cases.No new symptom of nervous system occurred. Conclusion It is important to carry out the correct surgical plan according to patients' age,location,mono-or poly-ostotic form of fibrous dysplasia,presence or absence of functional limitations,and aesthetic problem.

Objective To explore the changes of brain-derived neurotrophic factor(BDNF) after repeated febrile seizures (FS).Methods Fifty-one male SD rats were divided into 3 groups randomly: normal group (NC group,n=14) ,hyperthermic group (HC group,n=19),FS group(n=18). FS were induced by hot water bath.The level of BDNF in hippocampus homogenate were measured by enzyme linked immunosorbent assay (ELISA) and the expression of BDNF were measured by immunohistochemistry.The apoptosis of the brain cells were determined by terminal deoxynucleotide mediated nick end labeling (TUNEL).The results were analysed with the software of SPSS 13.0.Results The level of BDNF in hippocampus in FS group(89.90?12.51) ng/g was significantly higher than that in NC group(54.43?18.92) ng/g and HC group(64.09?15.03) ng/g (Pa

Objective To observe the expressions of nuclear factor-?B(NF-?B)in brain tissue of rats with repeated febrile seizures(FS)and explore its significance in brain injury of rats with FS.Methods Fifty-one male SD rats were divided into 3 groups according to random number method:normal group(n=14),hyperthermic group(n=19),FS group(n=18).FS models were induced by placing rats in warm bath;the rats without FS after warm-bath were assigned as hyperthermic group ;the normal controls received no treatment.The expression of NF-?B was measured by immunohistochemistry.The apoptosis of brain tissue was determined by terminal deoxynucleotidyl transferase biotin-dUTP nick end labeling(TUNEL).SPSS 13.0 software was applied for statistical treatment.Results In FS group,the number of the NF-?B positive neuron increased much more than that of hyperthermic group and normal group(Pa

Objective To explore the change of somatostatin(SS)in brain areas of juvenil rats with repeated febrile seizures(FSs)and hyparthermia.Methods Fifty-one male SD rats were divided randomly into 3 groups:normal group(NC group,n=14),hyperthermic group(HC group,n=19)and febrile seizure group(FS group,n=18).FS were induced by placing rats in a bath of water.The expressions of SS in DG,CA3,CA1 and CTL were measured by immunohistochemistry.The level of SS in hippocamps of these rats were determined by radioimmunoassay.Results The results of immunohistochemistry shew in HC group,the number of the SS positive neuron were increased in DG(21.10?2.51),CA3(10.60?2.41)in FS group,which was less than that in NC group(10.50?2.12,6.90?2.02),there was no difference in CA1 and CTL.The result of Radioimmunoassay:the level of SS in hippocampus in HC group[(53.74?7.56)ng/g]was higher than that in FS group[(39.54?7.74)ng/g](P0.05).Conclusion There is different change of somatostatin content in some brain areas of rats with repeated febrile seizure,which suggest that SS can increase the affectivity of seizure and promote the seizure.

Objective: To explore the active constituents from the stems of Orostachys malacophyllus in Changbai Mountain. Methods: The ethyl acetate fraction of the methanol extract from the stems of O. malacophyllus was separated by chromatographic methods, structure identification was by means of nuclear magnetic resonance and mass spectra, and the activity was determined by CCK-8 experiment. Results: Five compounds were isolated and identified as 1-ethyl-2-hydroxysuccinate (1), 1-ethyl-2-O-[(3,4-dihydroxybenzoyl) oxy]-succinate (2), 1,4-dimethy-2-O-[(3,4-dihydroxybenzoyl) oxy]-succinate (3), 1,4-dimethy-2-O-[(4-dihydroxybenzoyl) oxy]-succinate (4), and diisobutyl phthalate (5). Conclusion: Compounds 1-5 are isolated from the plants of this genus for the first time. Among them, compound 2 is a new compound named orostachysolic acid, and exhibits cytotoxicity against HeLa cell with IC50 value of 111.5 μmol/L.

Objective: To compare the diagnostic values of magnetic resonance imaging (MRI), enhanced computed tomography (CT), and positron emission tomography (PET)-CT using 18F-fluoro-2-deoxyglucose (FDG) in detecting skull base invasion of nasopharyngeal carcinoma (NPC) and provide the evidence for differentiated diagnosis of the skull base invasion of NPC. Methods: The fifty seven patients were scanned by MRI, enhanced CT, and PET-CT. The three imaging examinations were finished within 20 days. The diagnosis standards were based on histopathologic findings or clinical and imaging follow-up results within 6 months. The sensitivity, specificity, accuracy, positive predictive value (PPV) and negative predictive value (NPV) of the three scanning technologies were compared. Results: For detecting skull base invasion of NPC, the sensitivity of enhanced CT, MRI, and PET-CT were 68.18%, 84.09%, and 97.67%, respectively; the specificity were 76.92%, 69.23%, and 57.14%, respectively; the accuracy were 70.18%, 80.70%, and 87.72%, respectively; PPV were 90.90%, 90.24%, and 87.50%, respectively; NPV were 41.67%, 56.25%, and 88.89%, respectively. PET-CT was better than enhanced CT in sensitivity, accuracy, and NPV (P <0.05). It was also better than MRI in sensitivity and NPV (P <0.05). Conclusion: Among three imaging technologies,PET-CT has obvious advantage in detecting skull base invasion of NPC patients, especially for new patients.