2.5-7.0,a close correlation can be seen between the indoor and outdoor air.

Objective To explore the correlation between the unstability of carotid plaques and ischemic cerebrovascular diseases. Methods 112 cases were divided into 6 types according to their carotid ultrasonic examination, counted the focus of ischemic stroke by CT of each patient, then compared the difference of the quantities a-mong the 6 types. Results There were significant differences between the stable and unstable types in the quantities of focus. Conclusion There is a closed relationship between the unstability of carotid plaques by ultrasonic and ischemic cerebrovascular diseases.

Objective:To further understand the advantage of radiofrequency treatment of hemangioma ofnasal cavity under nasal endoscopy. Method:Fifteen cases with hemangioma of nasal cavity were treated withradiofrequency under nasal endoscopy. Result:The hemangioma of fifteen cases could be removed completely. Thecomplication was absent. None of them recured in six months to four years following up. Conclusion:This methodhas many advantages such as clear operation visual field,less hemorrhage and postoperative pain,no facial scar.The radiofrequency under endoscopy is valuable in treatment for hemangioma of nasal cavity.

Objective: To explore the predictors of drive for thinness in female college students in Beijing. Methods: 499 female students were investigated with Drive For Thinness of EDI, Body-Esteem Scale for Adolescents and Adults and BMI-based Silhouette Matching Test (BMI-SMT). Results: The deviation of perception, the deviation of expectation of one's own body and body-esteem were found to be predictors of drive for thinness. For someone with normal weight, the deviation of perception, the deviation of expectation of one's own body were significantly larger than someone slightly underweight and very underweight, the body-esteem were significantly lower and their drive for thinness were significantly greater. Conclusion: The distorting perception, the unreasonable expectation of one's own body and low body-esteem are important predictors of drive for thinness, which will then cause eating disorder in female college students.

Objective To investigate the relationship of serum uric acid level to the risk of coronary artery disease in young adults.Methods One hundred and fifty six young adults(≤45 years) hospitalized in Peking University First Hosipital during January 2005 to April 2008 were divided into coronary heart disease(CHD) group(96 cases) and control group(60 cases),according to coronary angiography.The CHD group was then sub-divided into 3 groups: single-vessel group(n=55),double-vessel group(n=21) and multi-vessel group(n=20).The relationship of serum uric acid level to the risk of CHD was analyzed.Results The serum uric acid level in CHD group was higher than that in control group(347.3?77.8 ?mol/L vs 306.1?76.6 ?mol/L,P

[Objective]To study the combination of calcium phosphate cement(CPC) and morselized bone and their optimum mixing ratio. [Methods]Bilateral nemora of macro-ears rabbits were made into morselized bone.There were two groups:experimental group and control group.In the experimental group,the ratios of morselized bone to CPC were 1 to 1,1 to 2,1 to 3,1 to 4 and 1 to 5.In the control group CPC was used after it was solidified.The maximum compression strength and solidified time of the materials in experimental and control groups were tested.The cell multiplication was evaluated by MTT after mesenchymal stem cells were cultivated.[Results]The cell multiplication in materials mixed with ratios of 1 to 2 and 1 to 3 was better than those in the materials mixed with the other ratios by MTT.It indicated that there was a significant difference(P

[Objective]To confirm the effect of combination of calcium phosphate cement and small amounts of autoallergic micromorselized bone for reparing bone defect and provide the basis for clinical use.[Method]The animal models of bilateral radius defect were created by surgery on Japan white big ear rabbits.The combination with a ratio of 3 to 1 in one lateral leg was implanted in experimental group,and calcium phosphate cement was used in the control group.The X-rays,bone density,and maximum torsional moment were carried out at different time points,and osteogenesis and degradation of the materials in the two groups were analyzed.[Result]Enhancement of osteogenesis was found in the experimental group,and the materials were enclosed significantly by bony callus at the 8~(th) week,the defects were repaired and the materials were degraded completely at the 16~(th) week.The bone mineral content in the experimental group was higher than that in the control group(P

To investigate the etiology.diagnosis and treatment of pulsatile tinnitus. One case with pulsatile tinnitus in our hospital admitted in May 2012 was reported and the relevant literatures were reviewed. The chief complaint when visited was pulsatile tinnitus. This case was treated by surgery. Pulsatile tinnitus was completely subsided without recurrence. Pulsatile tinnitus is an uncommon otologic symptom, which often presents a diagnostic and treatment dilemma to the otolaryngologist. The majority of patients with pulsatile tinnitus have a treatable cause. Failure to establish correct diagnosis may have disastrous consequences, because a potentially life threatening and underlying disorder may be present.
Adult ; Female ; Humans ; Tinnitus ; diagnosis ; etiology ; therapy

OBJECTIVE: Observing the anatomic variation and measuring the bone volume of meatus and nasal cavity by analyzing the expression of paranasal sinus CT. Searching whether these variation and volume data are related to maxillary fungal ball. METHOD: Measuring the double side bone volume of middle meatus,nasal cavity and the rate of middle meatus volume in the same side of nasal cavity respectively in the normal group, the maxillary fungal ball group. Observing the anatomic variation and statistically evaluating the anatomic variation and volume of nasal cavity and nasal meatus. RESULT: In the maxillary fungal ball group, the affected side and the contralateral side volume of middle meatus,nasal cavity and the rate of middle meatus volume in the nasal cavity had no statistical difference (P>0.05); Comparing the middle meatus volume and the rate of middle meatus of the maxillary fungus ball group affected side and normal group,there was statistical difference (P<0. 05). In the maxillary fungal ball group and the normal group, the morbidity of deviation septum were 24. 24% and 33. 33%, the morbidity of OMC variation were 30. 3% and 26. 67% (P<0.05), the morbidity of nasal anatomic variation were 54. 55% and 60.00%, there was no statistical difference (P>0.05). CONCLUSION Maybe there is a correlation between the enlarged bone middle meatus and the maxillary fungal ball. There is no relationship between the nasal anatomic variation and the maxillary fungal ball.
Humans ; Mycoses ; etiology ; Nasal Cavity ; anatomy & histology ; microbiology ; Nasal Septum ; Paranasal Sinuses