Adult ; Bone Marrow ; pathology ; Female ; Humans ; Leg ; Neoplasm Invasiveness ; Rhabdomyosarcoma, Embryonal ; pathology ; therapy

The cerebral blood flow of infant is effected by physiological and pathological factors.As the cerebrovascular autoregulation of neonates is poor,in pathological cases,especially when hypoxemia and hypercapnia impaired regulation of its own,lead to changes in cerebral blood flow,then resulting in severe brain injury.It has made enormous progress in the research on the changes of cerebral blood flow in newborns in recent years.In normal infants,cerebral blood flow velocities is positively correlated to gestational age and body weight,and increase gradually with day-age in the first week after birth.The cerebral blood flow of newborn with brain injury can present as insufficiency,over-perfusion or low speed high-resistance earlier and high speed low-resistance later.Different results may be related to the duration and severity of asphyxia,but all of those are signs of damage of self-regulatory function of cerebral blood flow.Cerebral hemodynamic change is the important pathogenesis mechanism of brain injury.

Objective To evaluate the methods and consequences of surgical technique in the treatment of Stanford A aortic dissection.Methods 108 patients with type Standford A aortic dissection underwent surgery in our study,including urgent surgery in 53 and selective surgery in 55.The operation was performed under deep hypothennic circulatory arrest (DHCA) in 85 cases.Surgical procedures included ascending and semi arch replacement or total arch replacement (some cases combined with stented graft implanted into the descending aorta),"elephant trunk" procedure.Concomitant procedures included repair of intimal tear in arch or descending aorta,Bentall procedure,aortic valve replacement,Cabrol or modified Cabrol procedure,aortic valvuloplasty,mitral valvuloplasty or mitral valve replacement,tricuspid valvuloplasty and CABG.Results In-hospital mortality was 6.5% (7 of 108 patients).The mor- tality was 7.5% (4 of 53 patients) in urgent surgery group and in elective surgery group was 5.4% (3 of 55 patients).Ninety six percent survived patients were followed up for 1 month to 13.3 years [mean (3.2?1.3) years] and 2 deaths occurred during the fel- low-up period.3 patients underwent re-operatian.Conclusion The choice of surgical procedures depend on the location of intimal tear for Stanford A aortic dissection.The better operative effects can be expected with proper surgical indication,perfecting surgical technique,and enhancing postoperative treatment.

BACKGROUND:Many studies have demonstrated that restoration of femoral offset in revision total hip arthroplasty would contribute to the recovery of joint function.OBJECTIVE:To investigate the importance of restoration of femoral offset in revision total hip arthreplasty on the recovery of joint function.METHODS:An observational study was performed at the Department of Orthopedics,Third Affiliated Hospital of Guangzhou Medical University between February 2004 and May 2007.A total of 15 patients with the revision total hip arthroplasty,including 12 males and 3 females,aging 62 75 years,averaging 67 years old,were recruited into this study.Harris evaluation system was used to evaluate joint function.The femoral neck anteversion and the femoral offset were measured by the method of Sakai.The vertical distance from the teardrop line to the most prominent point of the lesser trochanter was measured from each radiograph.References were combined to investigate the effect of restoration of femoral offset in revision total hip arthroplasty on joint function.RESULTS AND CONCLUSION:All the 15 patients were recruited into this study.The duration of follow-up ranged from 24 months to 5 years.We measured the femoral offset on pre- and post-operative radiographs,and the results indicated that the femoral offset of 4 patients were above 4 mm.The femoral offset of 11 patients was restored.The femoral offset were 22-48 (32.21±0.64) mm pre- and 22-57 (36.13±0.82) mm post-operative radiographs,respectively.The mean difference in femoral offset post-operatively was significant (t=0.424,P=0.01 ).Harris scores were good in 4 cases,passable in 2 cases,and poor in 9 cases pre-operatively,and the scores were excellent in 8 cases,good in 4 cases,passable in 2 cases,and poor in 1 case post-operatively.The score of Harris evaluation system in the patient of restoration group and failed restoration group were 88.72±5.3 (80%) and 72.32±6.5 (27%) post-operative at 1 month respectively.The mean difference of the score was significant (χ~2=1.245,P<0.05).The 3 patients had complication,one was the dislocation of hip,and two had the pain of hip.All the patients with complication were in failed restoration of femoral offset,which was above 4 mm.The restoration of femoral offset contributes to the recovery of joint function and reduce complication occurrence after total hip arthroplasty revision.

The average life expectancy in Macau is ranking the second in the world, the consumption of fresh medicinal plants is a profound culture in Macau. The paper focus on the distribution of the antioxidant herbs, a comprehensive investigation and analysis the amount of the plant resources was carried out. The antioxidant activity of alcohol extracts was determined by using the DPPH method, and six kinds fresh herbs with high antioxidant free radical activity were screened out. Reference to adult daily dose of vitamin C, it is calculated that the daily dose amount of fresh herbs is less than 200 g. For the expected shortage of resources and the ecological status of Macau, we give some suggestions of herbal introduction in population ecology reconstruction.
Antioxidants ; pharmacology ; Ecosystem ; Free Radical Scavengers ; pharmacology ; Macau ; Plant Extracts ; pharmacology

Child ; Endoscopy ; Humans ; Male ; Paraganglioma ; surgery ; Urinary Bladder Neoplasms ; surgery

OBJECTIVETo investigate clinical effects of minimally invasive fixation and bone grafting througn medial side for the treatment of Schatzker III tibial plateau fracture.

METHODSFrom April 2009 to August 2011, 18 patients with Schatzker III tibial plateau fracture were treated with minimally invasive fixation and bone grafting through medial side. There were 15 males and 3 females ranging in age from 64 to 73 years, with an average of (69.75 ± 1.22) years. Sixteen patients were caused by falling down, 2 cases were caused by traffic accident. Operative time and length of incision were be recorded. Clinical and radiological follow-up was performed after operation. Hospital for Special Surgery (HSS) score and Kellgren-Lawrence score were used to evaluate clinical effects.

RESULTSThe mean operative time was (45.32 ± 1.58) min, and the mean length of incision was (5.21 ± 0.65) cm. Postoperative X-ray showed excellent reduction. Eighteen patients were followed up for 10 to 13 months with an average of (11.5 ± 1.35) months. The mean HSS score was 86.51 ± 2.71, 12 cases got excellent results,4 good and 2 fair. Three patients were developed mild osteoarthritis according to the Kellgren-Lawrence system.

CONCLUSIONMinimally invasive fixation and bone grafting through medial side, not only could reduce surgical invasive, but also guarantee early function activities. It has advantages of keeping well after reduction. So it has the favorable future in clinic.

Aged ; Bone Transplantation ; Female ; Fracture Fixation, Internal ; methods ; Humans ; Male ; Middle Aged ; Minimally Invasive Surgical Procedures ; methods ; Retrospective Studies ; Tibial Fractures ; surgery

BackgroundPterygia is a clinical common disease.A lot of surgical methods are developed to decrease the recurrence rate.Resent years,the application of fibrin glue is receiving more and more attention.Objective This study was to explore the effects of fibrin glue in decreasing inflammatory irritation and its mechanism. Methods Pterygia models were created in 12 clean rabbits by exsection of limbal tissue and topical administration of 1.25％ diluted hydrochloric acid,and then the conjunctival autograft surgery was performed in the experimental rabbits.The conjunctival flap was sutured in the left eyes,and the conjunctival wound was closed using fibrin glue in the right eyes.The operation duration for each group was documented and compared.The irritation sign was examined under the slit lamp in all the rabbits 1 week and 4 weeks respectively.The expressions of vascular endothelial growth factor (VFGF) and basic fibroblast growth factor (bFGF) proteins in the conjunctiva tissue were detected by immunochemistry,and the expressions of VFGF mRNA and bFGF mRNA in the conjunctival tissue were determined by reverse transcription polymerase chain reaction (RT-PCR).Results The operative duration was (21.3±0.2) minutes in suture group and( 10.1 ±0.1 )minutes in the fibrin glue group with a significant difference between two groups( t =102.242,P＜0.05 ).From 1 week through 4 weeks,the hyperemiain degree was obviously slight in fibrin glue group compared with suture group.Immunochemistry showed that VEGF and bFGF proteins were expressed mainly in the cytoplasm of conjunctival epithelium layer.The positive response intensity was weaker in the fibrin glue group than in suture group 1 week and 4 weeks after operation.RT-PCR revealed that the expression level of VEGF mRNA was significantly lower in fibrin glue group than in suture group,and the VEGF mRNA was gradually decreased with the time lapse ( Fgroup =174.443,P =0.000 ; Ftime =231.459,P =0.000 ).The similar outcomes were found in the expression of bFGF mRNA(Fgroup=41.727,P=0.000;Ftime=55.417,P=0.000). ConclusionsThe use of fibringluecanshortentheoperationdurationandreducepostoperationinflammatoryreaction.The downregulation of VEGF and bFGF in tissue is the possible mechanism of remitting irritation sign,which allows a reduce of the recurrence rate of pterygia.

Objective To explore the gene expression of interleukin-13 receptor (IL-13R)?2 and its relationship to proliferation activity of human gliomas.Methods The gene expression of IL-13R?in 50 hu- man gliomas,2 malignant human glioma cell lines and 6 normal brain tissues were studied by RT-PCR.Ki-67 labeling index (Ki267 LI) of all sample were detecteded by immunohistochemical staining.Results Only one normal brain tissues expressed very low IL-13R?2 mRNA,whereas 35 (70%) of 50 human brain tumors expressed 1L-13R?2 mRNA.The positive rate and expression level of IL-13R?2 mRNA were increased with the ascending of WHO tumor grade.(former:rs=0.87;letter:rs=0.69,P＜0.01).The difference of posi- tive rate and expression level of IL-13R 2?mRNA between the low grade and high grade tumors was statistical- ly significant,the proliferation activity of gliomas evaluated by Ki-67LI (Ki-67 Labeling Index,Ki-67LI) was positively correlated with IL-13R?2 gene expression and the tumor grade.Conclusion In human cerebral gliomas,IL-13R?2 genes may play an role in the malignant progression.The expression level of malignancy in molecular level and selecting the target of gene therapy.

OBJECTIVEThis study aims to conduct a survey of the oral health status of disabled individuals in Liangshan Autonomous Prefecture in Sichuan province. This study was also conducted to prepare caries prevention planning in the region.

METHODSOn the basis of the Oral Health Surveys: Basic Methods of WHO and the Third National Oral Health Epidemiological Sample Survey Scheme, we investigated caries infecting disabled individuals who live in one big city (Xichang city), three counties (Bhutto county, Muli Tibetan autonomous county, and Huili county), and 46 towns and villages of Liangshan Autonomous Prefecture in Sichuan province, by multi-stage stratified and cluster sampling.

RESULTSAmong 3,439 disabled individuals, 2,085 were males and 1,354 were females; among these individuals, 815 live in the city and 2,624 live in rural areas. Furthermore, 2,177 were Han natives and 1,262 were Yi natives (ethnic). The caries prevalence rate and mean DMFT of disabled individuals in Liangshan Autonomous Prefecture in Sichuan province were 87.1% and 9.53, respectively. In Yi, the caries prevalence rate and mean DMFT of disabled individuals in Liangshan Autonomous Prefecture in Sichuan province were 85.8% and 9.93, respectively; in Han, the caries prevalence rate and mean DMFT of disabled individuals in Liangshan Autonomous Prefecture in Sichuan province were 87.9% and 9.29, respectively. No significant difference was found in the two groups of native (P > 0.05). A very low filling rate of 0.2% was also recorded.

CONCLUSIONDisabled individuals from Liangshan Autonomous Prefecture in Sichuan province exhibited a high prevalence of caries in permanent teeth. The oral health status of this special group of disabled individuals should be provided intensive care.

China ; Dental Caries ; Female ; Humans ; Male ; Oral Health