Adolescent ; Adult ; Boron ; adverse effects ; Humans ; Male ; Occupational Exposure ; Sperm Count ; Sperm Motility ; drug effects ; Spermatozoa ; drug effects

Objective To study P300 wave extraction by a new method. Methods According to the respective characteristics of the brain electrical signal and the signal analysis method, the algorithm by Wavelet Transformation (WT) combined with Independent Component Analysis (ICA), abbreviated to WICA, was applied to P300 wave extraction. Results With WT, the target component of the signal could be strengthened, while the non-target component and the noise were weakened which became weak in multi -channel ICA input signal, and then WICA algorithm could effectively separate strong target component. Conclusion WICA algorithm behaves well in P300 wave extraction.

Objective:To investigate the eating disorder and mood among students of a female university in Beijing.Methods:352 female students from a same-sex college in Beijing,between the age of 17-25 years were in- vestigated by Eating Disorder Inventory(EDI)and Profile of Mood States-Short Form(POMS-SF).Their weight and height were also collected for calculating for their body mass index(BMI).Results:Female university students showed serious tendency of eating disorder.The negative attitudes to body and body satisfaction were serious among normal BMI female university students.The behaviors and attitudes to eating disorders among the students of fresh-woman and senior were significantly higher than other grades(x~2=17.94,P

Objective To observe the efficacy of anatomical locking plate combined with anchor nail internal fixation and clavicular hook plate in the treatment of Neer Ⅱ distal clavicle fracture and their impact on shoulder function.Methods Eighty patients with Neer Ⅱ distal clavicular fracture treated in the Eighth People's Hospital in Shanghai from January 2015 to December 2016 were divided into observation group and control group,each group 40 cases.The observation group was treated with anatomical locking plate combined with anchor nail,the control group was treated with clavicular hook plate.The efficacy,operation time,intraoperative blood loss,fracture healing time,postoperative hospital stay,shoulder function score and incidence of complication were observed in the two groups.Results The excellent rate was in the observation group was higher than that in the control group (97.50%(39/40) vs.80.00%(31/40),χ2=2.477,P<0.01).The operation time,intraoperative blood loss and postoperative hospital stay in the observation group and the control group were (53.36±4.69) min vs.(54.19±5.13) min,(69.65±7.17) ml vs.(70.38±8.29) ml,(7.39±1.64) d vs.(7.42±1.97) d,the differences between the two groups had no statistical significance (P>0.05);the fracture healing time in the observation group was longer than that of the control group ((23.65±2.19) w vs.(26.9±3.46) w,P<0.01).The shoulder joint Constant-Murley score in the observation group was (86.02±5.19) points,control group (68.46± 6.94) points,the difference was statistically significant (P<0.01).Observation group showed 2 cases of pain around acromion,the incidence rate of complications was 5.00%(2/40);7 cases in the control group had pain around acromion,2 cases suffered from impingement syndrome and 1 cases had delayed union,the incidence rate of complications was 25.00% (10/40).Conclusion Anatomical locking plate combined with anchor nail internal fixation is effective in the treatment of Neer II distal clavicle fracture.It has the advantages of fast fracture healing,good functional recovery of shoulder joint and less complications.

Objective To explore the value of contrast-enhanced ultrasound(CEUS) in the diagnosis of hematoma and active hemorrhage of renal trauma. Methods Totally 28 patients with renal trauma were examined by conventional ultrasound and CEUS,respectively,including 24 cases caused after renal biopsy,4closed trauma. The detectability of renal hematoma and active hemorrhage with these two methods were compared. All patients were identified by CT or follow-up studies with ultrasound. Results The detectability of renal hematoma with conventional ultrasound and CEUS were 67. 86% (19/28), 92. 86%(26/28), respectively. There was statistically different for detectability in the diagnosis ( P ＜0.05), and the extent of hematoma was more obvious with CEUS. CEUS diagnosed 7 of 26 were renal hematoma with active hemorrhage,which were difficult to be detected with conventional ultrasound. For renal hematoma,the features of CEUS were no enhancement found in every phase; for renal hematoma with active hemorrhage,the contrast agents overflowed from injured blood vessels and formed irregular remarkable enhanced regions. Conclusions CEUS is useful in diagnosing hematoma and identifying the extent and active hemorrhage of renal trauma,in addition,CEUS is valuable in detecting complications after renal biopsy.

Female ; Humans ; Middle Aged ; Multiple System Atrophy ; diagnosis ; pathology

Child, Preschool ; Dwarfism ; congenital ; diagnosis ; Humans ; Male ; Osteochondrodysplasias ; congenital

OBJECTIVE To investigate the role of TLR4 signaling pathway in secretory otitis media of rats.METHODS Rats SOM models were made by infusing FS and LPS to the middle otocysts. The rats were killed separately at the 3rd, 5th, 7th, 9th,11th and13th day(5 rats each time). And then the expressions of TLR4, iNOS, IL-8mRNA of middle ear mucosae were detected. NF-?B was also detected through the method of immunohistochemistry. RESULTS The expressions of TLR4mRNA, iNOS and IL-8mRNA in middle ear mucosae of SOM group were significantly higher than that of control group. Immunohistochemistry method showed that the activation of NF-?B in middle ear mucosae was obviously increased in SOM. CONCLUSION The expression of TLR4 was obviously increased in SOM and it activates the NF-?B, promotes the expression of downstream IL-8. That maybe the mechanism which cause SOM.

Organophosphate chemicals are widely used as agricultural pesticides and war reagents, their biodegradation is emphasized on the theoretical and practical aspects. Organophosphate hydrolases play important roles in the biodegradation of organophosphate chemicals. Great advancement was achieved recently in the determination of crystal structure and catalytic mechanisms of the hydrolase. This paper reviewed the research progresses in the enzymology, protein structure, catalytic mechanisms and application of the organophosphate hydrolase, and predicted the future research in this field.

Objective To measure the renal tissue texture or flexibility with virtual touch quantization (VTQ) and to tentatively examine its clinical application in patients with chronic kidney disease(CKD).Methods A total of 750 patients (1500 kidneys) were performed with VTQ,including 400 cases in the control group,and 350 cases in the CKD group.A conventional ultrasound examination (two-dimensional,color Doppler) were first taken,and then the shear wave velocity (Vs) was measured which reflected the textural elastic.Results In both groups the Vs was the highest in renal cortex with significant difference (P<0.05); renal cortical region Vs in CKD group was lower than those in control group (P<0.05),while Vs of renal medulla and renal sinus had no significant difference in the two groups.The severity of renal dysfunction was increased along with a Vs decrease of renal cortex.Conclusion VTQ is helpful to assess renal function of patients with CKD.