[Objective] To approach the causes and managements of dislocation after total hip arthroplasty.[Methods]850 total hip arthroplasties were done in our department from 1996 to 2004,in which 7 cases experienced post-operative dislocation.Whith 4 males and 3 females,the average age was 67 years old.Causes and managements have been studied retrospectively through analysis of history,surgical approach,timing and direction of the dislocations and predisposing factors of the dislocations occurred.[Results]There wer 7 cases of dislocations of which 5 patients(71%)were primary cases and 2 patients(29%)were revision cases;4 patients(57%)had history of hip surgery;1 case had mental disorder after cerebral surgery.Direct lateral approach was used for all these patients,and only anterior dislocation was occurred in this group.Through study the AP X-rays postoperatively,the abduction angle were more than 55 degree in 2 of these cases.The time of dislocation was from right after operation to 27 months after operation;5 of them experienced their dislocation within 3 months after operation.Closed reduction and 6 weeks traction were selected for all these patients,and 6 of them were successful.Recurrent dislccation occurred twice in another one patient within 3 months after reduction,and the acetabular cup was loosened during closed reduction.A stable joint was achieved after revision and modifying the abduction angle of the cup.[Conclusion]Causative risk factors for dislocation after total hip arthroplasty include surgery history on the same hip,inability to comply with instructions of rehabilitation,approach of surgery and malposition of the prosthesis.Closed reduction and traction for 6-week afterwards are usually successful for most of the dislocated cases.Revision could be done in the base of analyzing the reasons for recurrent dislocation,and then stale joint could be achieved.

To determine the etiologic agent of an outbreak of influenza viruses from Changsha Foothill Mountain International School in 2009, and to analyze the HA Gene Characteristic of the H1N1 influenza viruses. Twenty-five nasopharyngeal swab specimens from the outbreak of influenza viruses were tested by conventional RT-PCR and influenza viruses isolated simultaneously. Virus isolated (A/Yuelu/314/2009) from the outbreak was sequenced by CEQTM 8000 Genetic Analysis System and the sequencing results submitted to GenBank (Accession No: FJ912843), then the sequencing data was analyzed by ClustalX and Mega4.1softwares. Results showed the influenza viruses A(H1N1) of positive were 18 cases by influenza viruses isolated tests and 21 cases by conventional RT-PCR, respectively. The nucleotide and amino acid sequence homology of the HA gene of A/Yuelu/314/2009 are 99% compare with the vaccine strain (A/Brisbane/59/2007) in 2008~2009 years. The HA sequence data also showed that had 6 amino acid mutations (V148A, S158N, G202A, I203D, A206T, W435R), and the S158N located at antigenic site B of HA protein. Nine potential glycosylation sites (27, 28, 40, 71, 151, 176, 303, 497, 536) in the HA sequence of A/Yuelu/314/2009 is the same with A/Brisbane/59/2007, and the sequences of potential glycosylation sites were conserved. In this study, laboratory evidence diagnosed seasonal influenza A virus (H1N1) as the etiologic agent of the outbreak. The virus isolated (A/Yuelu/314/2009) strain of H1N1 subtype is not a new variant in Changsha in 2009 compare with the vaccine strain (A/Brisbane/59/2007), the outbreak of influenza A virus (H1N1) from Changsha Foothill Mountain International School maybe are caused by the change in genetic characteristics between vaccine strains and the decreased of immunity to influenza A virus (H1N1) in the crowd.

ce, sIMRT and IMRT radiotherapy techniques can protect the lung and spinal cord well.

Congresses as Topic ; Humans ; Multiple Myeloma ; United States

Animals ; Cells, Cultured ; Female ; HSP70 Heat-Shock Proteins ; genetics ; metabolism ; Humans ; Lead ; pharmacokinetics ; toxicity ; Liver ; metabolism ; Male ; RNA, Messenger ; genetics ; Rats ; Rats, Wistar

Aim: To synthesize the ent-kaurene diterpenoid and its derivatives from natural available stevioside.Methods: The crucial pharmacophore of exo-methylene ketone was designed and the carboxyl group at C-4 was modified.The cytotoxic inhibition activities in vitro of target compounds were evaluated against human cancer cells BEL-7402,HO-8910,MCF-7 and HL-60 by a MTT method.Results and Conclusion: The struc-tures of new target compounds were identified by ~1H NMR,FT-IR and EI-MS.The preliminary experimental re-sults showed that some derivatives of ent-kaurene diterpenoid possessed fair inhibitory activity against tumor cell lines compared with that of their parent steviol.

BACKGROUND:Hidden blood loss is one of most important complications after total knee arthroplasty, but the mechanism and influential factors are not yet clear. OBJECTIVE:To analyze the relative influential factors for hidden blood loss in primary unilateral total knee arthroplasty. METHODS:Data of 235 patients who had undergone primary unilateral total knee arthroplasty from April to September 2014 were retrospectively studied. There were 38 males and 197 females aged from 48 to 82 years old with a mean age of 66 years. The Gross formula was used to calculate the amount of hidden blood loss. The effects of gender, age, height, body weight, body mass index, anesthesia method, administration of tranexamic acid, postoperative anticoagulation method, typeof prosthesis, tourniquet time and pre-operative coagulation function on the postoperative hidden blood loss and total blood loss after total knee arthroplasty were analyzed. RESULTS AND CONCLUSION:(1) Significant differences in hidden blood loss and total blood loss after total knee arthroplasty were detected between male and female patients (P< 0.01). Significant differences in hidden blood loss and total blood loss were found between tranexamic acid and non-tranexamic acid groups (P< 0.05,P< 0.01).(2) Multivariate linear regression analysis showed that preoperative hemoglobin level and heightwere important factors influencing the blood loss after arthroplasty. Hidden blood loss and total blood loss were not correlated with age, body mass index, anesthesia method, postoperative anticoagulation method, type of prosthesis, tourniquet time and preoperative coagulation function. (3) Results indicate that gender and administration of tranexamic acid affect hidden blood loss and total blood loss after total knee arthroplasty. However, age, body mass index, anesthesia method, postoperative anticoagulation method, type of prosthesis, tourniquet time and preoperative coagulation function do not greatly affect hidden blood loss.

OBJECTIVE: To investigate and analyze the status of anxiety and depression among patients with four types of peripheral vertigo. METHOD: The clinical data of patients with one of the four types of peripheral vertigo, namely benign paroxysmal positional vertigo (BPPV), vestibular migraine (VM), Menière's disease (MD), and vestibular neuritis (VN), were collected. Thorough otological and neuro-otological examinations were performed on these patients, and their status of anxiety and depression were assessed using self-rating anxiety scale (SAS) and self-rating depression scale (SDS). RESULT: A total of 129 patients with one of the four types of peripheral vertigo(49 cases of BPPV, 37 cases of VM, 28 cases of MD and 15 cases of VN) were included in the study. The scores of SAS and SDS were higher in the patients with VM or MD than those with BPPV or VN (P < 0.05), and the incidence of anxiety (VM = 45.9% MD = 50.0%) and depression (VM = 27.0% MD = 28.6%) were higher in the patients with VM or MD than those with BPPV or VN (P < 0.05). Paired comparisons showed the differences between the incidences of BPPV and MV groups, BPPV and MD groups, and MD and VN groups were statistically significant (P < 0.05). CONCLUSION Among patients with different types of peripheral vertigo, anxiety/depression is more common in patients with VM or MD. This may be due to the different mechanisms involved in different types of vertigo, as well as differences in the prevention and self-control of the patients against the vertigo.
Anxiety ; complications ; Benign Paroxysmal Positional Vertigo ; Depression ; complications ; Ear, Inner ; Humans ; Incidence ; Meniere Disease ; Migraine Disorders ; Psychiatric Status Rating Scales ; Vertigo ; classification ; complications ; Vestibular Neuronitis ; Vestibule, Labyrinth

Salvianolic acid A (Sal A) is one of the most effective compounds isolated from the root of Salvia miltiorrhiza. Up to now, several studies regarding the pharmacokinetic profiles of Sal A have been reported, however there is no such study reported in monkeys, the species which is more similar to human. The aim of this study is to develop a LC-MS method for the determination of Sal A in monkey plasma and apply it to the pharmacokinetic studies of monkeys. After single intravenous administration of Sal A, the plasma concentration-time curves were observed and the main pharmacokinetic parameters were calculated. The plasma concentration at 2 min (C2 (min)) values were (28.343 ± 6.426), (45.679 ± 12.301) and (113.293 ± 24.360) mg x L(-1) for Rhesus monkeys treated with Sal A at 2.5, 5 and 10 mg x kg(-1). The area under the concentration-time curve (AUC(0-∞)) values were (3.316 ± 0.871), (5.754 ± 2.150) and (13.761 ± 2.825) μg x L(-1) x h, respectively. Furthermore, this method was improved and applied to the simultaneous determination of Sal A, Sal B and Sal C, which provided useful information for preclinical studies and clinical trials of Sal A, Sal B and Sal C.
Administration, Intravenous ; Animals ; Caffeic Acids ; pharmacokinetics ; Chromatography, Liquid ; Drugs, Chinese Herbal ; pharmacokinetics ; Lactates ; pharmacokinetics ; Macaca mulatta ; Mass Spectrometry ; Plant Roots ; chemistry ; Salvia miltiorrhiza ; chemistry

In order to determine the suitable harvest time of Dendrobium officinale from different regions in Yunnan province, the drying rate, mannose and glucose peak area ratio, extract, contents of polysaccharide and mannose of D. officinale samples collected from six producing areas in Ynnnan province were determined. The results indicate that drying rate and the contents of polysaccharide and mannose arrived the peak from January to April, extract reached a higher content from September to December, and mannose and glucose peak area ratio from October to February of the coming met the requirment of the Chinese Pharmacopoeia. Hence, the suitable harvesting time of D. officinale in Yunnan province is from December to February of the coming year,according to the experimental results and the request of the Chinese Pharmacopoeia.
China ; Dendrobium ; chemistry ; growth & development ; metabolism ; Glucose ; analysis ; metabolism ; Mannose ; analysis ; metabolism ; Time Factors