BACKGROUND:Platelet-rich plasma contains a variety of stimulating factors, and can also raise the proteoglycan and col agen synthesis. OBJECTIVE:To observe the effect of platelet-rich plasma on the proliferation of goat bone marrow mesenchymal stem cel s. METHODS:Blood samples were extracted from the jugular vein of Inner Mongolia Ximeng goats to harvest platelet-rich plasma using centrifugation method. Then, bone marrow was extracted from the goat’s ilium by puncture method to isolate and purify goat bone marrow mesechymal stem cel s using density gradient centrifugation method. After that, primary cel s at good state were cultured in L-DMEM complete medium containing 10%, 20%, 30%platelet-rich plasma or in simple L-DMEM complete medium. RESULTS AND CONCLUSION:Within 2-6 days of culture, cel s in the platelet-rich plasma groups proliferated faster than those in the control group, and with the increasing of platelet-rich plasma concentration, the cel s grew faster, with larger number and more mature morphology. At 4 days of culture, the cel doubling time was about 50, 35, 25 hours in the 10%, 20%, and 30%platelet-rich plasma groups, respectively. These findings indicate that goat platelet-rich plasma can dramatical y promote the proliferation of bone marrow mesenchymal stem cel s in a concentration-dependent manner.

Objective To study the comparison of the therapeutic effect of Ultrasound guided and freehand botulinum toxin type of the treatment in children with cerebral palsy.Methods From March 2014 to September 2016,98 cases of children with cerebral palsy in our hospital by injection of botulinum toxin were treated.According to the way of injection,the children were divided into ultrasound group and free group(n =49).They were respectively gave botulinum toxin injection by guided Ultrasound guided and freehand ultrasound injection of hotulinum toxin injection.The amount of two groups of children was 3U/kg.Children muscle spasm degree of before and after treatment was assessed by modified Ashworth spasm scale.And exercise capacity of children before and after treatment was assessed by the gross motor function rating scale.The follow-up time was 3 months,the clinical curative effect of two groups of children was observed.Results The total efficiency of ultrasound guided group (98.0％) was significantly higher than the free group (79.6％),with statistically significant (P ＜ 0.05).Both groups before and after treatment in children with Ashworth score and GMFM score were significantly improved,with statistical significance (P ＜ 0.05).Ashworth score and GMFM scores of ultrasound guided group were significantly better than the free group,with statistically significant (P ＜ 0.05).Conclusion Botulinum toxin injection in the treatment of cerebral palsy children can effectively solve the spastic problem.Treatment of children with cerebral palsy by injecting botulinum toxin with ultrasound guided injection of botulinurn toxin is better than manual injection of botulinum toxin.

Adult ; Calcium-Transporting ATPases ; metabolism ; Erythrocyte Membrane ; metabolism ; Female ; Humans ; Hydrocarbons ; adverse effects ; Lipid Peroxidation ; Male ; Middle Aged ; Occupational Exposure ; Sodium-Potassium-Exchanging ATPase ; metabolism ; Young Adult

Adult ; Female ; Humans ; Hydrocarbons ; adverse effects ; Kidney ; drug effects ; physiology ; Liver ; drug effects ; physiology ; Male ; Middle Aged ; Occupational Exposure ; adverse effects ; Smoke ; adverse effects ; Young Adult

Adult ; Female ; Humans ; Hydrocarbons ; adverse effects ; Male ; Middle Aged ; Occupational Exposure ; adverse effects ; Pulmonary Ventilation ; drug effects ; Radiography, Thoracic ; Smoke ; adverse effects ; X-Ray Film

Bone Marrow Cells ; cytology ; Fibroblasts ; cytology ; metabolism ; Fibrosis ; Humans ; Myocardium ; pathology

Adipose Tissue ; cytology ; Heart ; physiology ; Humans ; Regeneration ; Stem Cells ; cytology

OBJECTIVETo explore optimal choice of surgical treatment for subtrochanteric fractures in older children.

METHODSA retrospective study of 36 older children with subtrochanteric fractures was performed between January 2010 and January 2012. Among them, 18 patients (11 males and 7 females) aged from 7 to 13 years old with an average of 9.4 were treated with titanic elastic nail (TEN) fixation, 4 cases were Type II A, 3 cases were II B, 2 cases were II C, 4 cases were III A, 3 cases were III B according to Seinsheimer classification. Eighteen patients (10 males and 8 females) aged was from 8 to 13 years with an average of 9.6 were treated with locking compression pine (LCP) fixation, and 3 cases were Type II A, 4 cases were II B, 3 cases were II C, 4 cases were IIIA, 2 cases were III B. Fracture healing time, postoperative complications (including wound infection, failure and breakage of internal fixtion, deformities of angular on the sagittal view, deformities of coxa vara) and recovery of hip joint function were observed and recorded.

RESULTSAll children were followed up from 15 to 36 months with an average of 21. Fracture were all healed, the time ranged from 7 to 16 weeks (mean 9.5). Three cases in TEN group occurred mild deformities of angular on the sagittal view, 3 cases occurred deformities of coxa vara and 2 cases occurred limb shortening; while 1 case occurred mild deformities of angular on the sagittal view, and no deformities of coxa vara and limb shortening occurred in LCP group. No early close of epiphyseal injury, avascular necrosis of femoral head occurred. Clinical efficacy were evaluated by Sanders standard, 14 cases got excellent results, 3 cases were moderate in LCP group, while 9 cases in excellent, 4 in moderate in TEN group. There were no significant differences between two group in recovery of hip joint function and complications.

CONCLUSIONFor the treatment of subtrochanteric fractures in older children,the efficacy of LCP fixation is better than that of TFN fixation, which has advantages of reliable fixation, and less complications.

Adolescent ; Bone Nails ; Child ; Female ; Fracture Fixation, Intramedullary ; instrumentation ; methods ; Hip Fractures ; surgery ; Humans ; Male ; Retrospective Studies ; Treatment Outcome

Objective To explore the relationship of suicide ideation, depression and meaning in life as well as the effect of meaning in life between depression and suicide ideation.Methods Beck Scale for Suicide Ideation(BSI-CV) , Purpose in Life test (PIL) and Self-Rating Depression scale (DSD) were employed to investigate 1 688 freshmen.Results Suicide ideation had significant positive correlation with depression(r=0.326, P＜0.01;r=0.3, P＜0.01) ,while it had significant negative correlation with meaning in life(r=-0.34, P＜0.01;r=-0.37, P＜0.01).Depression of freshmen with suicide ideation was higher than ones without((48.04±8.13) vs (44.56±7.12), P＜0.01), and meaning in life of freshmen with suicide ideation was lower than ones without ((98.39±12.68) vs (105.78± 11.76), P＜0.01).Meaning in life partially mediated the relationship between depression and suicide ideation.Conclusion Suicide ideation of college freshmen are related to depression and meaning in life, and meaning in life can partially mediated the relationship between depression and suicide ideation.

AIM:To investigate the differences of clinical signs and pathological structure of unilateral nasal pterygium and unilateral double pterygium.METHODS:Retrospective study.Totally 11 unilateral nasal pterygium and 11 unilateral double pterygium were collected to observe the size of the tissue area, the classification of blood vessels, the transparency and the break-up time of tear film.The 11 surgically excised double pterygia (11 eyes) and 6 samples of normal conjunctiva were collected for the study.With 40g/L paraformaldehyde fixation, paraffin sections were stained with Haematoxylin-Eosin, to observe the differences with nasal and temporal pathology under light microscope.RESULTS:In unilateral double pterygium, the tear break-up time was significantly shorter than that of unilateral nasal pterygium (t=3.410, P=0.003).In unilateral nasal pterygium, there was a significant negative correlation between tear film break-up time and tissue size(r=-0.927, P<0.01) and transparency(r=-0.764,P<0.01).In unilateral double pterygium, the tear break-up time was significantly negatively correlated with the growth time (r=-0.661, P<0.05), tissue size (r=-0.775, P<0.01) and transparency (r=-0.671,P<0.05).In unilateral double pterygium, compared with the temporal side, the quantity of the layers of corneal epithelial cells (t=-7.351, P<0.05), vessels (t=-7.400, P<0.05) and inflammatory cells (t=-7.481, P<0.05) increased.CONCLUSION:Compared with unilateral nasal pterygium, the tear film break-up time of unilateral double pterygium was poor.In unilateral double pterygium, with high activity, the degree of proliferation of squamous epithelium, hyperplasia and inflammatory reaction are significantly higher than those of the temporal side.