Acrylonitrile ; poisoning ; Adult ; Female ; Humans ; Male ; Middle Aged ; Occupational Diseases ; therapy

The basic principles of piezoelectric quartz crystal immunosensor are reviewed. Its characteristics and applications in biomedicine are summarized. The feasibility of its application in detecting cardiac troponin I (cTnI) is briefly analyzed. There's no need of any signs and segregation steps in the technique, so the instrument is simple and easily-operated. Besides, it has a bright application future for its merits of rapid detection and precise quantification.

Response surface analysis (uniform precision of central composite design, SAS 9.1.3 software) was applied to optimize the four major factors (ratio of soybean meal to water, enzyme quantity, fermentation time and inoculation quantity) for soybean meal solid fermentation. According to the change of the hydrolyzation degree of soybean protein, the equation of polynomial regression was established between those factors and the response. The result showed that the optimum condition included as follows: ratio of soybean meal to water 1∶1.00,enzyme quantity 2.55%, fermentation time 65h and inoculation quantity 1.00%. Under the optimum level, the degree of hydrolyzation reached 13.3%, which increased 56% over pre-optimization.

Helicobacter pylori(Hp) is an important pathogenic factor in chronic gastritis,peptic ulcer and gastric cancer.With the extensive use of broad-spectrum atibiotics in recent years,the antibiotic resistence of Hp was increasing,together with many side effets and low patient compliance,so the study of new anti-Hp drugs became a research hotspot.Domestic and foreign scholars had extracted active anti-Hp ingredients from the traditional Chinese drug curcuma,they hope to open a new way for the treatment of Hp infection.This paper was to make a brief overview on the study progress of effect of curcuma on anti-Hp.

AIM: To investigate the clinical effects of intravitreal Bevacizumab for 26 cases with retinopathy of prematurity (ROP) in Zone Ⅰ.
METHODS:A retrospective study. Totally 26 ROP infants between September 2013 and October 2014 diagnosed as high - risk ROP in Zone Ⅰ had been treated with intravitreal bevacizumab. They were divided into three groups, pre - threshold ROP, threshold ROP and acute posterior ROP ( APROP ). Postoperative effects were compared.
RESULTS:There were 26 infants (52 eyes) diagnosed as ROP in Zone Ⅰ, including 3 infants( 6 eyes) with pre -threshold ROP, 15 infants (30 eyes) with threshold ROP and 8 infants (16 eyes) with APROP. The first operation recovery rate of three groups respectively were 100% (6 /6), 60% ( 18 / 30 ) and 75% ( 12 / 16 ), which were not significantly different (P>0. 05).
CONCLUSION:Intravitreal bevacizumab for ROP in ZoneⅠ seems effective and has some advantages over conventional laser treatment, which could be first line treatment for high-risk ROP in Zone Ⅰ.

Objective To explore the imaging characteristics of neurologic complications associated with the enterovirus 71 ( EV71 ) epidemic by analyzing 25 cases and reviewing the literature. Methods Twenty-five cases of hand-foot-mouth disease with neurologic complications during the recent EV71 outbreaks of Hainan province were studied for the clinical features and imaging findings, and literature were reviewed.Results In 5 cases, acute flaccid paralysis associated with EV71-infected hand-foot-mouth disease was related to the linear high signal in the spinal cord on sagittal images. Two cases showed symmetrical, welldefined hyperintense lesions in the spinal cord on T2WI transverse. Strong enhancement of the ventral horns and root was seen on the contrast-enhanced axial T1WI. In brainstem encephalitis, all lesions presented with significant hyperintensity on T2WI and hypointense on T1WI in the posterior portions of the medulla oblongata, midbrain, and pons. The manifestations of aseptic meningitis (AM) on MRI have no characteristics, but subdural effusion, meningeal enhancement and hydrocephalus can be the indirect signs of AM. Conclusions MRI is an effective method to investigate neurologic complications associated with the EV71 epidemic. Posterior portions of the medulla oblongata and pons, bilateral ventral horns of spinal involvement are characteristic findings of enteroviral encephalomyelitis.

BACKGROUND: There are many treatment approaches of the cervical spinal cord injury but the results were all unpleased.OBJECTIVE: To discuss the effect of the operation and other colligate treatments on the functional recovery of the patients who suffered from the cervical central spinal cord injury.DESIGN: A preoperative and postoperative control study.SETTING: Orthopaedic department in an affiliated hospital of a university.PARTICIPANTS: Eleven male patients of the central spinal cord injury,whose ages ranged from 36 to 65, were chosen from the Orthopedic Department of People' s Hospital of Jiangsu Province from January 1999 to January 2003. Nine cases suffered from traffic accidents. One case suffered from falling injury. One case suffered from head smash injury. The courses of diseases were from 2 hours to 14 days. Nine cases were accompanied with the cervical intervertebral disc herniation. One case was accompanied with the cervical vertebral canal stenosis. One case was accompanied with the fracture of the C6 vertebral body. Nine cases showed single segment injury and 2 cases showed two segment injuries in the MRI plate.METHODS: The operation was done 4 to 20 days after the injury. Anterior cervical intervertebral disc removal, bone implantation and the internal fixation of the armor plate were done in 9 cases. Posterior route cervical vertebral depression, bone implantation and internal fixation of the lateral armor plate were done in 2 cases.tion.RESULTS: Before the operation 11 cases were classified according to the Frankel Grade: 3 cases of 0 grade, 3 cases of Ⅰ grade and 5 cases of Ⅱ grade. After the operation 1 case of 0 grade, 4 cases of Ⅲ grade, and 6 cases of Ⅳ grade. The mean muscular power recovered 2 to 5 grades. The re-examination of the internal fixation was firm and right-located. The implanted bone healed well.CONCLUSION: After the diagnosis of the cervical central spinal cord injury, the colligate treatment is suggested. The operation removes the pathogenic factors as soon as possible, and other assistant treatments promote the functional recovery of the spinal cord.

Objective:To build an HPLC method for the determination of baicalin and geniposide in Ganxueguanliu Huoxue cap-sules. Methods:An Agilent Eclipse XDB-C18 (150 mm × 4. 6 mm, 5μm) column was chosen for the analysis. The mobile phase con-sisted of 0. 2% phosphoric acid (A) and methanol (B) with gradient elution. The flow rate was 1. 0 ml·min-1. The detection wave-length was set at 238 nm and the column temperature was 25℃. Results:A good linear relationship was observed within the range of 0. 418-8. 360 μg·ml-1 for baicalin (r=0. 999 9) and 0. 226-4. 524μg·ml-1 for geniposide (r=0. 999 9). The average recovery of baicalin and geniposide was 99. 79% (RSD=1. 55%, n=6) and 100. 2%(RSD=2. 05%, n=6), respectively. Conclusion: The method is rapid, convenient and specific, which can be used for the content determination of baicalin and geniposide in Ganxueguanliu Huoxue capsules.

Objective To construct a novel tissue?engineered bone matrix gelatin (BMG)/poly[butylene succinate?co?tere?phthalate] (PBST) biphasic scaffold for annulus fibrosus. Methods The PBST spinning fibers were prepared by electrospinning and the porosity and water absorption rate were tested. Rabbit annulus fibrosus cells were isolated, cultured and identified through SafraninOstaining, and collagenⅡimmunohistochemical staining in vitro. And then annulus fibrosus cells were implanted on the PBST fiber, whose growth situation was observed by scanning electron microscope (SEM). Then the BMG/PBST biphasic scaf?fold was constructed by BMG as the outer annular fibrosus and PBST fiber as the inner annular fibrosus. The annulus fibrosus cells were implanted on the biphasic scafflod and cultured for 3, 7 and 21 days in vitro. The biomechanical and biological property was observed at the predetermined time point. Results The porosity of the fiber was 61.83%±7.33%and its water absorption rate was 297.34%± 57.13%. The identified result of annulus fibrosus cells were positive, suggesting that the cells have still kept their annulus fibrosus cells characteristics. The cells growth could be observed through SEM at 3rd and 7th day after implanted on the fi?bers. After cultured on the BMG/PBST scaffold, HE staining proved that the cells could ingress into the inner of fiber with time. SafraninOstaining and collagenⅡimmunohistochemical staining proved that the cells can secreted abundant proteoglycan and collagenⅡ, the special annulus fibrosus cell extracellular matrix. Compared with the BMG/PBST scaffold without cells, the elastic modulus of biphasic scaffold was increased from 14.83±1.02 MPa to 17.56±1.47 MPa after cultured with cells for 21 days in vitro. Conclusion The novel tissue?engineered biphasic scaffold for annulus fibrosus constructed with BMG and PBST fiber spinning has good cytocompatibility and biomechanical characteristics, which provide a basis for the complete tissue engineered interverte?bral disc.

Objective To analysis the long-term retention rate of Levetiraceram (LEV) monotherapy or combination therapy of infant epilepsy. Methods The clinical data of patients with infant epilepsy treated by LEV had been retrospectively analyzed from July 2006 to June 2007. Results Sixty patients with infant epilepsy treated by LEV had been recruited, 20 cases with partial seizures, 19 cases with generalized seizures, 21 cases with epilepsy syndrome. Among them 21 cases was intractable epilepsy. The retention rates of LEV in 6-month, 1-year, 2-year, 3-year and 4-year were 95.5%, 75.0%, 60.0%, 51.7%, and 38.3%. The most common reason for withdrawal was lack of effect (43.2%). COX regression model suggested that duration>1 month (RR=2.91, 95%CI:1.16~7.30) and refractory epilepsy (RR=2.30, 95%CI:1.22~4.32) were risk factors of withdrawal (all P<0.05). After treatment, the seizure frequency signiifcantly reduced compared with baseline (P<0.01). To the end of the follow-up, the efifciency was 100%and the complete remission rate was 69.57%in 23 cases continued treatment. The main side effect were fatigue (56.0%), and sleep increased, irritability, and so on. Conclusions LEV monotherapy or combination therapy has well long-term retention rate, maintains well efifcacy and tolerability in infant epilepsy.