Humans ; Leukemia, Myeloid, Acute ; Societies, Medical ; United States

Adult ; Humans ; Lumbar Vertebrae ; injuries ; Male ; Spinal Fractures ; surgery ; Surgical Wound Infection ; therapy

Objective To discuss the diagnosis and inductive chemoradiotherapy of stage Ⅲ and stage Ⅳa invasive thymoma.Methods Clinical data of 13 cases with incomplete resected invasive thymoma were analyzed retrospectively,among which 8 cases were in stage Ⅲ and 5 cases in stage Ⅳa.All the 13 cases had invasion of major vessels,pericardial and lung tissues,or had metastasis of pleura and pericardium.Each patient got pathological diagnosis by fine needle aspiration,video-assisted thoracoscopic biopsy or anterior mediastinal biopsy.After 3 cycles of NP or CAP inductive chemotherapy and synchronous radiotherapy,tumors shrank and got palliative or complete surgical resection.The Follow up ranged from 2.8 to 9 years.Results All the 13 cases were malignant thymoma,including 4 cases of type B2,6 cases of type B3 and 5 cases of type C.7 patients got radical resection and 2 got palliative resection.9 patients survived more than 3 years after operation,7 patients survived more than 5 years,one patient even lived 8 years,and the other 4 patients without getting surgery died in 4 years.Conclusion Inductive chemoradiotherapy could shrink stage Ⅲ and stage Ⅳa invasive thymoma,reduce clinical stage,improve the resection rate,and prolong survival.

Objective:To analyze the characteristics of immune status in patients with different types of oral lichen planus(OLP). Methods:197 cases of OLP,61 with reticular OLP(ROLP)and 136 with hyperaemia erosion OLP(HEOLP)were included.The im-mune status of the patients were investigated by flow cytometry (FCM)for the expression of CD3 +,CD4 +,CD8 +,CD19 +,CD16 ++56 +and CD4 +/CD8 +cells,and nephelometry for the measurements of IgG,IgA,IgM,C3 and CH50 in peripheral blood.The la-brotary norm was used as the reference and the characteristics of immune status in patients with different clinical characters of OLP were analyzed by SPSS 16.0.Results:CD3 +,CD4 +,IgA and C3 decreased,CD19 +cells,IgG,IgMand CH50 increased in patients with OLP.CD16 ++56 +,CD4 +/CD8 +cells decreased in the cases with ROLP(P<0.05);CD8 +cells decreased in the cases with HE-OLP.CD3 +,CD8 +cells were fewer in HEOLP patients than that in ROLP,CD4 +/CD8 +cells were more in HEOLP than that in ROLP(P<0.05).Conclusion:There are defects of cellular immune function and increase of humoral immune in patients with OLP. The patients with different clinical types of OLP may have different immune fuction changes.

Action Potentials ; Animals ; Female ; Male ; Nifedipine ; pharmacology ; Rabbits ; Ureter ; drug effects ; physiology ; Urination ; drug effects ; Vitamin K 3 ; pharmacology

Objective To investigate the effects and the migration mechanisms of stromal derived factor-1 (SDF-1) and CXC chemokine receptor-4 (CXCR-4) in rats with white matter damage treated with human umbilical cord mesenchymal stem cells (hUC-MSCs).Methods A total of 108 three-day old Sprague-Dawley rats were randomly divided into the experimental group,control group and sham group.The left common carotid artery was ligated and then exposed to hypoxia of 6％ O2 and 94％ N2 in rats in the experimental and control groups.Rats in sham group were neither ligation nor hypoxia.After 24 hours,rats in the experimental group were administered 0.5 ml hUC-MSCs (1 × 106/ml) intraperitoneally,and rats in control and sham groups were administered 0.5 ml saline by the same way.Immunohistochemistry and reverse transcription-polymerase chain reaction were used to determine the expression of SDF-1 and CXCR-4 protein and mRNA in 5-,7-and 14-day-old rats.Analysis of variance and the LSD test were used for statistical analysis of the data.Results HE staining showed that,in 14 day-old rats of the experimental group,bilateral cerebral ventricles were similar with no cellular edema or necrocytosis.In the sham group,bilateral cerebral ventricles were also normal.However,in the control group,ventriculomegaly,cellular degeneration and necrocytosis were observed on the left side.On the 5th,7th and 14th day,SDF-1 protein levels were 0.15±0.06,0.24±0.01 and 0.12±0.01,and CXCR-4 protein levels were 0.35±0.16,0.60±0.21 and 0.72±0.25,respectively,in the experimental group; SDF-1 protein levels were 0.13 ± 0.01,0.16± 0.01 and 0.08± 0.01,and CXCR-4 protein levels were 0.18 ± 0.04,0.17 ± 0.09 and 0.25 ± 0.06,respectively,in the control group,and all were higher than those in the sham group (SDF-1 protein levels were 0.03 ± 0.01,0.04± 0.01 and 0.02±0.01; and CXCR-4 protein levels were 0.04±0.02,0.05±0.03 and 0.05±0.03,respectively) (LSD test,all P＜0.05).SDF-1 protein increased to a peak on the 7th day and decreased on the 14th day in the experimental group,however,these values were both higher than those in the control group (LSD test,both P＜0.05).CXCR-4 protein increased on the 5th day and continued to increase up to the 14th day in the experimental group,and these values were higher than those in the control group at the three time points (LSD test,all P＜0.05).In 5-,7-and 14-day-old rats,SDF-1 mRNA levels were 3.52 ± 0.33,4.18± 0.28 and 2.60± 0.21,respectively,in the experimental group,which were higher than those in the control group (2.07± 0.34,3.73 ± 0.28 and 2.08± 0.15,respectively),and were even higher than those in the sham group (0.99±0.17,1.00±0.16 and 1.31 ±0.32,respectively) (LSD test,all P＜0.05).In the experimental group,SDF-1 mRNA levels reached a peak on the 7th day,and on the 14th day,it decreased to the level lower than that on the 5th day (LSD test,all P＜0.05).In the control group,SDF-1 mRNA levels also reached a peak in 7-day-old rats,but not in 14-day-old rats,which was similar to 5-day old rats (LSD test,9＞0.05).In 5-,7 and 14-day-old rats of the experimental group,CXCR-4 mRNA levels were 1.32±0.29,1.75±0.36 and 2.33±0.49,respectively,higher than those in the sham group (1.00±0.16,0.94±0.16 and 0.81±0.14,respectively) and the control group (0.97±0.14,0.97±0.15 and 1.07±0.25,respectively) (LSD test,all P＜0.05).In the experimental group,CXCR-4 mRNA levels were higher in 14-day-old rats than that in 5-and 7-day-old rats (LSD test,both P＜0.05).Conclusions SDF-1/CXCR-4 may play a vital role in the migration of hUC-MSCs homing to damaged brain.

Objective To study the effect of high soluble oxygen fluid (HSOF) therapy on the expression of serum matrix metallop roteinases-9 (MMP-9) in patients with intracerebral hemorrhage (ICH). Methods 66 patients with ICH were randomized into routine therapy group and HSOF+ routine therapy group The levels of serum MMP-9 were detected by ELISA for at 1 d,3 d, 7d and 2 weeks after therapy. Results The expression of MMP-9 in both two groups was higher than that in the control group (P

BACKGROUND:The use of cemented or uncemented hemiarthroplasty for unstable intertrochanteric fractures in the elderly remains controversial.Therefore,it is necessary to conduct a comparative study on the effectiveness and safety of these two methods.OBJECTIVE:To compare the clinical efficacy of cemented and uncemented hemiarthroplasty for unstable intertrochanteric fractures in the elderly.METHODS:Clinical data of 93 elderly patients with unstable intertrochanteric fractures in Department of Orthopedics,Shandong Energy Zaozhuang Mining Group General Hospital from May 2009 to May 2014 were analyzed retrospectively.All patients were divided into cemented (cemented bipolar hemiarthroplasty for fractures,n=54) and uncemented (uncemented bipolar hemiarthroplasty for fractures,n=39) groups.RESULTS AND CONCLUSION:(1) The amounts of postoperative drainage and blood transfusion in the cemented group were significantly less than those in the uncemented group (P ＜ 0.05),but the operation time was significantly longer (P ＜ 0.05).(2) There were no significant differences in the intraoperative blood loss,ambulation time,hospitalization time,postoperative complications,hip function,and mortality at 3 and 12 months postoperatively between two groups (P ＞ 0.05).(3) Postoperative X-ray showed that all patients had good prosthesis position.There were 10 patients (3 cases in the cemented group,7 cases in the uncemented group) with postoperative prosthesis subsidence,but all of them were less than 3 mm.(4) None of patients had heterotopic ossification,osteolysis around the prosthesis and acetabular cartilage wear during follow-up.Additionally,25 patients (16 cases in the cement group,9 cases in the uncement group) died during follow-up,without prosthesis loosening,and the remaining 68 patients were followed up for 2-7 years,(4.5±2.3) years on average,and none needed revision because of prosthesis loosening.(5) These results indicate that for senile unstable intertrochanteric fractures,both cemented and uncemented hemiarthroplasty can achieve satisfactory curative effectiveness and exhibits good safety.Notably,the cemented prosthesis has advantages in reducing postoperative drainage volume and blood transfusion.

Objective To investigate the association of the TNFRSF11B gene polymorphism and the lean muscle mass in population of Chinese Han living in Jinan. Methods Lean muscle mass of 419 volunteers were measured with dual energy X-ray absorptiometry. 8 tagging single nucleotide polymorphism (tSNP) of TNFRSF11B gene were genotyped. Results Lean muscle mass of whole body increased with the copy of the G allele of TNFRSF11B-rs2875845 and the T allele of TNFRSF11B-rs1485288 (P<0.05). Conclusion The G allele of rs2875845 and the T allele of rs1485288 in TNFRSF11B gene increase the level of the lean muscle mass in Chinese Han population.

OBJECTIVE:To evaluate the rational use of antimicrobials in 160 cases undergoing orthopaedic operations.MET_HODS:To analyse and evaluate the use of antimicrobials in 160 cases undergoing orthopaedic operations in 1999 in respect to the cost of antimicrobials related cost ratio,usage,clinical efficacy,and adverse drug reactions.RESULTS:The cost of antimicrobials per person()was 1 676.55 yuans and average day of treatment()was (7.3?3.4)d.151 patients healed by first intension.9 patients recovered in delayed healing.The ratio of the total cost,cost of drugs and cost of antimicrobials was 1∶0.38∶0.14.CONCLUSION:The use of the antimicrobials in 160 cases undergoing orthopaedic operations was reasonable.