Objective To study the effect of hyperoxia solution and hypertonic saline infusion on arteries blood gas analysis of traumatic hemorrhagic shock rabbits,and interaction of hyperoxia solution and hypertonic saline.Methods Forty rabbits established into traumatic hemorrhagic shock model by Lamson' s method.Post hoc analysis was adopted in trial according to hyperoxia solution and hypertonic saline and 40 rabbits were divided into four groups(n =10):saline(NS) group,normal hyperoxic solution (NSO) group,hypertonic saline(HS) group,hyperosmotic-hyperoxic solution(HSO) group.Then blood samples were collected at pre-shock,post-shock,the end of limited resuscitation and hemostatic resuscitation for blood gas analysis.Results At the pre-shock,post-shock stages,PaCO2 and PaO2 were no significant difference in each groups ( P ＞0.05 ).At the end of limited resuscitation and hemostatic resuscitation stage,PaCO2 in NSO group (33.50 ±5.93),(37.22 ±6.74) mm Hg,(31.70 ±7.39),(35.10 ±7.56 )mm Hg in HS group,HSO group(38.70 ±4.92),(41.80 ± 5.51 )mm Hg were higher than that in NS group ( 27.40 ± 3.60 ),( 30.83 ± 2.79 ) mm Hg (F =6.894,4.287,respectively ;P ＜ 0.05 ),but there were no cross correlation between hypertonic saline and hyperoxia solution ( P ＞ 0.05).There were no significant difference in PaO2 in each groups at the end of limited resuscitation and hemostatic resuscitation stage ( P ＞ 0.05 ).Conclusions Both hyperoxia solution and hypertonic saline can effectively relieve hyperventilation,but there is no interaction between them.

Objective To investigate the risk factors and prognosis on the post-resuscitation multiple organ dysfunction syndrome(MODS) after successful cardiopulmonary resuscitation(CPR).Methods Clinical data of 53 patients who were suffered with cardiac arrest(CA) and undergone successful CPR with return of spontaneous circulation(ROSC) were analyzed. Results There were 48 patients accompanied with MODS(90.6%),and among them,35 patients died in hospital(66.0%).All the 10 patients with CPR interval ≥6min were accompanied with MODS and they died in hospital.There were 43 patients who underwent CA immediately and of them,38 patients were accompanied with MODS.The incidence and mortality of MODS in the patients with CA-ROSC interval 0.05).Conclusion The risk factors such as ROSC interval ≥6 min,AC-ROSC interval ≥10min and the SIRS after ROSC are significantly associated with the incidence of MODS.The organic function of the patients should be evaluated promptly.

[ABSTRACT]OBJECTIVETo investigate the diagnosis, treatment method, key points of operation, and postoperative complications of high-risk esophageal foreign body.METHODSA retrospective analysis of 41 cases of high-risk esophageal foreign body from January 1996 to December 2014. After adequate preparation, the foreign body was removed via esophageal endoscope under general anesthesia.RESULTSThe foreign bodies in 41 patients were removed via esophageal endoscope once or twice. Two cases suffered postoperative subcutaneous emphysema, that may be a result of a small perforation in esophagus. Emphysema was disappeared by fast, rehydration and anti-infection for 6 to 8 days, and other serious complications did not occur.CONCLUSIONMost high-risk esophageal foreign bodies can be removed through rigid esophagoscopy. Some of the foreign bodies of the patients were difficult to remove, some patients were presented with mediastinal emphysema and pneumothorax due to esophageal perforation, and some foreign body stuck in oesophagus so long to cause esophageal mucosa ulcer. In these conditions, foreign bodies should be removed by lateral neck incision or thoracotomy.

Objective To determine chromosomal localization of the primary gout susceptibility gene in a pedigree.Methods The clinical data and the peripheral blood samples were collected in the pedigree members and the genomic DNA was extracted from peripheral blood.A genome-wide screening was performed using 400 micro-satellite DNA markers in this family,and linkage analysis was used to determine the chromosomal location of the primary gout susceptibility gene.Results Linkage analysis showed that the maximum LOD score reached 1.50 at marker D4S1572 (at recombination fraction?=0.00).Conclusion Since D4S1572 is localized at 4q25,the primary gout susceptibility gene of this pedigree is localized at 4q25.

OBJECTIVE: To explore the feasibility of detecting of Y-STR of fetal DNA in maternal plasma using Ion Torrent PGM™ System. METHODS: A total of 16 fetal DNA samples from maternal plasmas (8 cases from 38 weeks gestational age and 8 ones from 12 weeks) were prepared and a multiplex assay with 7 STR loci (DYS390, DYS391, DYS393, DYS438, DYS437, DYS456, DYS635) was designed for multiplex-PCR amplification. Using Ion Torrent PGM™ System, the results of Y-STR sequences and capillary electrophoresis were obtained and compared. RESULTS: Y-STR specific alleles were detected in the maternal plasma of all the pregnant women having male babies of second and third trimester, which were higher than that detected by capillary electrophoresis. Consistent Y-STR genotypes were observed between fetal DNA from maternal plasma and genomic DNA from the newborn babies. CONCLUSION Based on Ion Torrent PGM™ System, the prenatal Y-STR detection method may provide a high-sensitive and high-throughput choice for prenatal STR detection in forensic testing.
Alleles ; Chromosomes, Human, Y/genetics* ; DNA/blood* ; Family ; Female ; Fetal Blood/chemistry* ; Genotype ; Haplotypes ; Humans ; Male ; Polymerase Chain Reaction ; Polymorphism, Genetic ; Pregnancy ; Sensitivity and Specificity ; Sex Determination Analysis ; Tandem Repeat Sequences/genetics*

0.05).Conclusion The distribution of G990R CASR genotype in PHPT patients is different from healthy women,and R allele is higher in PHPT group.Among PHPT patients,A986S and G990R polymorphisms are associated with serum calcium and ICa levels.Patients with S or G allele have lower levels of serum calcium and ICa.A986S genotype is also associated with serum PTH level and patients with S allele have relatively lower level of PTH.

OBJECTIVETo explore the correlation between homozygous deletions and mutation of p16 gene and the carcinogenesis and progression of squamous cell carcinoma of buccal mucosa.

METHODSThirty buccal cancers, 10 leukoplakias and 8 buccal mucosas were involved. DNA was extracted from the tissues. PCR was used to analyses homozygous deletion of p16 gene. PCR-SSCP-DNA sequencing was performed to detect the point mutation of p16 gene. Immunohistochemical techniques were used to detect the expression of P16 protein.

RESULTSGene deletions and point mutations were not found in leukoplakia and normal buccal mucosa. Gene deletions were found in 7 samples out of 30 cases of squamous cell carcinoma of buccal mucosa (23.3%), while point mutations were found in 5 samples out of 30 cases of squamous cell carcinoma of buccal mucosa (16.7%). Sequencing analysis showed that 5 cases point mutations were missense mutations, occurred on exon 2. Three cases occurred in the same point, codon 99 (GAT --> AAT). The result of immunohistochemical stains showed that 11 out of 12 cases gene inactivation did not expressed P16 protein.

CONCLUSIONHomozygous deletion and point mutation of p16 were the main pattern of gene inactivation in squamous cell carcinoma of buccal mucosa. There was a closely correlation between p16 gene inactivation and the carcinogenesis of squamous cell carcinoma of buccal mucosa.

Carcinoma, Squamous Cell ; Cyclin-Dependent Kinase Inhibitor p16 ; Gene Deletion ; Genes, p16 ; Humans ; Mouth Mucosa ; Mutation ; Point Mutation

OBJECTIVETo evaluate therapeutic effects of Wallis interspinous dynamic stabilization in treating ASD after lumbar spinal fusion.

METHODSTotally 40 patients (included 16 males and 24 females, aged 25 to 60 years old) with degenerative disc disease were treated with posterior interbody fusion. Among them, 20 cases (treatment group) were treated with posterior interbody fusion combined with Wallis interspinous dynamic stabilization, while other 20 cases (control group) only treated with posterior interbody fusion. JOA score and VAS score were compared after inserted Wallis interspinous dynamic stabilization at 1 month and 3 years, and changes of intervertebral disc height of adjacent segment and cross-sectional area of the canal were tested and compared.

RESULTSAll patients were followed up from 3 to 5 years with an average of 3.6 years. All injuries were healed at stage I and the pain were released after treatment. There were no significant meaning in JOA score and VAS score at 1 month after treatment between two groups (P>0.05), while had meaning at 3 years (P<0.05). There were no statistical significane in intervertebral disc height of adjacent segment and cross-sectional area of the canal at 1 month after treatment (P>0.05), while had statistical meaning at 3 years (P<0.05).

CONCLUSIONThere is no difference in immediate effects between two groups. Both of them can obtain good results for effective decompression. Medial-term effectiveness of treatment group is obviously better than control group, which depends on Wallis interspinous dynamic stabilization to plays good biology effects and effective accelerate adjacent degeneration caused by lumbar fusion.

Adult ; Decompression, Surgical ; Female ; Humans ; Intervertebral Disc Degeneration ; surgery ; Lumbar Vertebrae ; surgery ; Male ; Middle Aged ; Spinal Fusion ; Treatment Outcome

OBJECTIVETo study the effects of GSM 1800 MHz radiofrequency electromagnetic fields (RF EMF) on DNA damage in Chinese hamster lung (CHL) cells.

METHODSThe cells were intermittently exposed or sham-exposed to GSM 1800 MHz RF EMF (5 minutes on/10 minutes off) at a special absorption rate (SAR) of 3.0 W/kg for 1 hour or 24 hours. Meanwhile, cells exposed to 2-acetylaminofluorene, a DNA damage agent, at a final concentration of 20 mg/L for 2 hours were used as positive control. After exposure, cells were fixed by using 4% paraformaldehyde and processed for phosphorylated form of H2AX (gammaH2AX) immunofluorescence measurement. The primary antibody used for immunofluorescence was mouse monoclonal antibody against gammaH2AX and the secondary antibody was fluorescein isothiocyanate (FITC)-conjugated goat anti-mouse IgG. Nuclei were counterstained with 4, 6-diamidino-2-phenylindole (DAPI). The gammaH2AX foci and nuclei were visualized with an Olympus AX70 fluorescent microscope. Image Pro-Plus software was used to count the gammaH2AX foci in each cell. For each exposure condition, at least 50 cells were selected to detect gammaH2AX foci. Cells were classified as positive when more than five foci were detected. The percentage of gammaH2AX foci positive cells was adopted as the index of DNA damage.

RESULTSThe percentage of gammaH2AX foci positive cell of 1800 MHz RF EMF exposure for 24 hours (37.9 +/- 8.6)% or 2-acetylaminofluorene exposure (50.9 +/- 9.4)% was significantly higher compared with the sham-exposure (28.0 +/- 8.4)%. However, there was no significant difference between the sham-exposure and RF EMF exposure for 1 hour (31.8 +/- 8.7)%.

CONCLUSION1800 MHz RF EMF (SAR, 3.0 W/kg) for 24 hours might induce DNA damage in CHL cells.

Animals ; Cells, Cultured ; Cricetinae ; Cricetulus ; DNA Breaks, Double-Stranded ; radiation effects ; DNA Damage ; radiation effects ; Electromagnetic Fields ; adverse effects ; Fibroblasts ; chemistry ; radiation effects ; Radio Waves

OBJECTIVETo investigate the appropriate extubation time and treatment of late complications after early tracheotomy in patients with moderate or severe inhalation injury.

METHODSOne hundred and fifty patients (105 males and 45 females) with inhalation injury were admitted to our hospital from January 2000 to January 2009. Among them, 109 out of 129 cases with moderate inhalation injury received early tracheotomy, and all 21 cases with severe inhalation injury received early tracheotomy. Data were collected for analysis as follows: (1) incidence of re-intubation due to suffocation and pneumonia incidence after extubation within 2 weeks or after 2 weeks post inhalation injury (PII), and mortality rate within the first week after injury were recorded. (2) Conservative treatments including expectorant, oral antibiotics, and absolute bedrest were recommended for patients who had severe cough, hoarseness or poor pulmonary function after late extubation and closure of tracheostomy wound. Fiberoptic bronchoscopy findings (tracheostenosis degree, granuloma formation rate, vocal cord paralysis rate) and pulmonary function index (FEV(1)) data were collected and analyzed in 30 cases with moderate inhalation injury and 10 cases with severe inhalation injury within 3 months after injury for follow-up. Data were processed with t test or chi-square test.

RESULTSThere was no obvious difference in the rate of re-intubation after extubation in patients with moderate inhalation injury between those done within 2 weeks PII (15/70, 21.4%) and those done after 2 weeks PII (2/25, 8.0%) (χ(2) = 1.52, P > 0.05). Pneumonia incidence in patients of moderate inhalation injury with extubation within 2 weeks PII (21/70, 30.0%) was lower than those with extubation after 2 weeks PII (15/25, 60.0%) (χ(2) = 7.04, P < 0.05). Levels of above-mentioned indexes in patients with severe inhalation injury extubated in different stages were similar to those of patients with moderate inhalation injury. Within the first week after injury, mortality rate of patients with severe inhalation injury was higher than that of patients with moderate inhalation injury (χ(2) = 11.90, P < 0.05). During follow-up, tracheostenosis rate in patients with moderate or severe inhalation injury was 100.0%; granuloma formation rate and vocal cord paralysis rate in patients with severe inhalation injury were higher than those of patients with moderate inhalation injury (with χ(2) value respectively 4.59, 13.47, P values all below 0.05). The FEV(1) value of patients with moderate inhalation injury in the 1st, 2nd, 3rd month after injury was respectively higher than that of patients with severe inhalation injury (with t value respectively 5.48, 12.10, 6.25, P values all below 0.05). The values recovered to normal level in the 3rd month after injury.

CONCLUSIONSExtubation time of tracheotomy for patients with moderate or severe inhalation injury within 2 weeks or after 2 weeks PII has its own advantage and disadvantage, and it should be performed according to specific conditions of each patient. Conservative treatment is optional for late complications of respiratory system.

Adolescent ; Adult ; Aged ; Burns, Inhalation ; surgery ; Child ; Child, Preschool ; Female ; Follow-Up Studies ; Humans ; Intubation, Intratracheal ; adverse effects ; Male ; Middle Aged ; Postoperative Complications ; Tracheotomy ; adverse effects ; Young Adult