Adult ; Female ; Humans ; Male ; Middle Aged ; Parathyroid Neoplasms ; diagnostic imaging ; surgery ; Retrospective Studies ; Ultrasonography

Adolescent ; Asthma ; blood ; drug therapy ; Case-Control Studies ; Child ; Child, Preschool ; Female ; Humans ; Interleukin-17 ; blood ; Male

Objective To build a normal value of serum sex hormone in the healthy children in favour of the diagnosis of children precocious puberty and the evaluation of the growth of the children.Method Serum of 462 healthy children(aged from 1 month to 14 years;205 females,257 males)was collected,and the level of testosterone(T) and 17-estradiol(E2).Results There were no significant deviation in the levels of E2 of deferent genders between 1-12 months,but the level of T in boys and girls were obviously different.The puberty of boys was la-ter than girls.There was no significant deviation in the level of E2 of the boys in different periods,but the levels of T in boys at different ages were obviously different.Conclusions With the improvement the detection methods,the normal values of the serum sex hormone in healthy children have been changing.It is helpful for diagnosis of children precocious puberty by rebuilding normal values of T and E2 .

Objective To study the effect of hypothyroidism on oxidative stress status in developing rat brain and to further explore the mechanism of impaired brain development caused by hypothyroidism. Methods Perinatal hypothyroidism was induced by administering propylthiouracil(PTU) solution to the dams by gavage.The oxidative stress indexes were measured in brain homogenate of normal and hypothyroid pups which were sacrificed on the 21st d after birth. Results As compared to the control,the following indexes were found to be increased in the hypothyroid group: protein carbonyl contents,thiobarbital acid reactive substances,reduced glutathione,total antioxidative capacity,activities of superoxide dismutase and glutathione peroxidase(P0.05). Conclusion Hypothyroidism during rat brain development may cause oxidative stress,which may be related to the brain damage caused by hypothyroidism.

BACKGROUND:Currently, conventional treatment methods for heart failure are al ineffective. OBJECTIVE:To explore the combined effects of human umbilical cord stem cel s and CD133+cel s in mice with heart failure, providing a new insight into the treatment of heart failure. METHODS:Ful-term newborn umbilical cord from vaginal delivery was col ected to isolate CD133+cel s and human umbilical cord stem cel s using lymphocyte separation medium method. Twenty Balb/C nude mice were randomly subjected to mononuclear cel injection (mononuclear cel group) or injection of CD133+cel s combined with human umbilical cord stem cel s (combined group) via the tail vein after establishing heart failure models. RESULTS AND CONCLUSION:Fourteen days after injection, the body weight and liver, heart and lung mass of mice were significantly larger in the combined group than the mononuclear cel group (P<0.05). After 30 days, myocardial cel s arranged regularly in the combined group, but disorderly in the mononuclear cel group;compared with the mononuclear cel group, the average area of myocardial col agen fibers was significantly decreased in the combined group (P<0.05), and the level of serum matrix metal oproteinase-9 was also significantly lower in the combined group (P<0.05). Masson staining showed that blue-stained col agen fibers in the combined group were less but arranged neatly;however, in the mononuclear cel group, the number of col agen fibers that arranged irregularly was increased to different extents. To conclude, the combined use of CD133+cel s and human umbilical cord stem cel s has desired outcomes in the treatment of heart failure in mice, indicating a higher clinical value.

Adult ; Cholesteatoma ; congenital ; Female ; Humans ; Temporal Bone

OBJECTIVE:To establish the quality standard of Bikemin capsule to control the quality METHODS:TLC method was used for the identification of Ephedra sinica and the detection of limitation of aconitine in Bikemin capsule Ephedrine and pseudoephedrine in the capsule were determined by HPLC on C18 column with the detection wavelength at 215nm RESULTS:The standard curves of ephedrine and pseudoephedrine were linear in the ranges of 0 02～0 10mg/ml (r=0 9 993) and 0 01～0 05mg/ml(r=0 9 996)respectively The average recoveries were (101 4?1 78)% for ephedrine and (98 08?1 81)% for pseudoephedrine CONCLUSION:The identification method is specific and the determination method is sensitive The quality standard is suitable for control of quality of Bikemin capsule

Adenoids ; diagnostic imaging ; pathology ; surgery ; Adolescent ; Child ; Child, Preschool ; Endoscopy ; Female ; Humans ; Hypertrophy ; diagnostic imaging ; pathology ; surgery ; Male ; Nasopharyngeal Diseases ; diagnostic imaging ; pathology ; surgery ; Nose ; surgery ; Radiography

Objective To investigate the status quo of transformational leadership,psychological empowerment,team psychological safety and team effectiveness,and test whether the supposed structural equation is tenable.Methods Totally 380 nurses completed the Transformational Leadership Questionnaire,Psychological Empowerment Questionnaire,Team Psychological Safety Questionnaire and Team Effectiveness Questionnaire,structural equation model was used to verify the relationship of the above,Bootstrapping confidential interval and product of coefficient were used to test the mediating effect.Results Significant correlations were found between transformational leadership,psychological empowerment,team psychological safety and team effectiveness (P ＜ 0.01),transformational leadership played indirect effect on team effectiveness (Z=6.195,P ＜ 0.05),psychological empowerment and psychological safety had a totally mediation effect.Conclusions Healthcare workers should make psychological empowerment and team psychological safety as the breakthrough point,fully play the advantages of transformational leadership on team effectiveness in order to increase the working ability of nurses and make them complete the clinical work effectively and with high quality.

Animals ; Chronic Disease ; Corticosterone ; blood ; Hypoxia ; blood ; Male ; Rats ; Rats, Sprague-Dawley ; Testis ; metabolism ; Testosterone ; blood