Objective BOLD-fMRI was used to observe the activated auditory cortex evoked by pure tone stimuli in patients with sensorineural hearing loss and this paper is to discuss the objective measure for patient with sensorineural hearing toss. Methods BOLD-fMRI examinations were taken in 22 patients with unilateral moderate to severe sensorneural hearing loss and 15 control subjects. The volumes and intensities of the two hemispheres of the activated auditory cortex were analyzed quantitatively. Results Significant activation was found in the temporal lobe in control subjects, and significant differences in the volume and intensity were noted between the contralateral and ipsilateral activated auditory cortexes in them (P<0.01), exhibiting clearly eontralateral predominance. When the normal ear of patients with sensorineural hearing loss received signals, there was no significant difference be-tween contralateral and ipsilateral activated auditory cortexes (P>0.05). Conclusion When the normal ear of pa-tients with sensorneural hearing loss was stimulated by pure tone, the contralateral hemisphere predominance disap-peared. This result seems to show the plasticity of auditory cortex of patients with unilateral hearing loss.

Objective To analyze the CT and MRI appearances and to improve the knowledge of peripheral primitive neuroectodermal tumors(pPNETs).Methods CT or MRI were performed in 19 patients of pPNETs,which were confirmed by pathology.Results All the tumors were with unclear margin.Three cases occurred in intracalvarium,7 in the extremities,2 in the chest,4 in the abdomen,and 3 inside the spine.CT appearance of the tumors arising from soft tissue showed large,ill-defined,non-calcified mass and heterogeneous appearance with hypodense cystic areas.The tumors demonstrated heterogeneous contrast enhancement.The pPNETs arising from bone demonstrated extensive lytic lesion with large soft tissue mass,one case with newly-born bone and demonstrated heterogeneous contrast enhancement.The tumors demonstrated homogeneous intensity as muscle on SE T1WI and heterogeneous hyperintense signal on T2WI.Immunohistochemically,tumor cells showed positive for CD99,Syn,GFAP and negative for LCA.Conclusion The pPNETs show no characteristic manifestations on CT and MRI.However,CT and MRI can show the intra-tumor structures and the extent of the tumor very well,which is helpful in differentiating diagnosis,predicting resectability,detecting distant metastases and evaluating the response to treatment.

BACKGROUND:Intertrochanteric fracture is one of the most common fractures in older adults. The surgical treatment methods include artificial joint replacement (total hip and femoral head replacement) and internal fixation (proximal femoral nail anti-rotation and dynamic hip screw), but there is no clear evidence to evaluate the effect of them. OBJECTIVE: To compare the effect difference of arthroplasty and internal fixation in the treatment of intertrochanteric fracture in the elderly people. METHODS:We retrieved randomized controled studies on artificial joint replacement (total hip and femoral head replacement) and internal fixation (proximal femoral nail anti-rotation and dynamic hip screw) in the treatment of intertrochanteric fracture from 1990 to 2015. Meta-analysis was used to compare operation time, intraoperative bleeding volume, one-year postoperative Harris hip scores, and one-year postoperative complication between the arthroplasty and internal fixation. RESULTS AND CONCLUSION:(1) Twenty-one studies were included. (2) Intraoperative bleeding volume and one-year postoperative Harris hip scores were higher in the arthroplasty group than in the internal fixation group. (3) Operation time was similar between the arthroplasty and internal fixation groups. (4) Complication rate was lower in the arthroplasty group than in the internal fixation group. Incidence of complications was closed between the arthroplasty and internal fixation groups. (5) Results suggested that the effect of arthroplasty was better than internal fixation for treating intertrochanteric fracture in the elderly. However, prospective large-sample long-term randomized controled trials are needed for verification.

BACKGROUND: Osteonecrosis of the femoral head (ONFH) following internal fixation of femoral neck fractures is difficult to be cured in clinic.OBJECTIVE: To analyze the literatures concerning ONFH in patients with femoral neck fractures treated with screw internal fixation in recent 15 years, and to summarize the research progress in views of epidemiology, etiology, diagnosis,treatment and rehabilitation.METHODS: Databases of CNKI, WanFang, CqVip, PubMed, Medline, Web of Science were searched with the keywords of femoral neck fracture, osteonecrosis of femoral head, osteonecrosis, internal fixation, internal fixation with screw in English and Chinese, respectively. Afterwards, the reviews and case reports were excluded. RESULTS AND CONCLUSION: (1) A total of 54 eligible articles addressing the ONFH following internal fixation for femoral neck fractures were included, and the incidence of ONFH varied from 8.1% to 37.2%, which was found at an average of 17 months after injury. (2) ONFH was found to be related to age, preoperative fracture displacement, preoperative traction,reduction condition, time from injury to operation, elderly patients companied with other diseases, older patients undergoing removal of the screws, closed or open internal fixation, restored time postoperatively, high body mass index, hyperlipidemia, season, and depression. (3) Early prevention and remedial surgery were used to treat ONFH. (4) The patients without weight-bearing activities at 3-6 months postoperatively could be beneficial for functional recovery. (5) These results suggest that choosing appropriate surgical programs and rehabilitation plan can reduce the incidence of ONFH and achieve good treatment outcomes, such as reasonable preoperative planning, standardized operation skills, correct diagnosis and treatment, proper postoperative rehabilitation and good doctor-patient cooperation.

Objective To evaluate the rehabilitating effect of hyperbaric oxygen on visual pathway lesions with blood oxygen level dependent functional magnetic resonance imaging (BOLD-fMRI) and diffusion tensor imaging (DTI). Methods Sixteen patients with visual pathway lesions (the study group) and twelve healthy volunteers (the control group) were assessed using BOLD-fMRI and DTI. After hyperbaric oxygen therapy, the patients in the study group were again assessed using BOLD-fMRI and DTI. The activated regions of the BOLD-fMRI scan and the fractional anisotropy (FA) value determined from the DTI were calculated. Results Before hyperbaric oxygen treatment, there were significant differences between control and study groups in their BOLD-fMRI activated regions and the FA values of their radiation optics (P≤0.01). After hyperbaric oxygen treatment, there were no significant differences. Conclusion Combining BOLD-fMRI with DT1 could be used to evaluate the rehabilitation effect of hy-perbaric oxygen treatment in patients with visual pathway lesions.

Objective To evaluate the analysis capability of urine protein qualitative test between AX-4030 and Cobas U411 u-rine dry chemistry analyzer,and study on evaluating the performance of qualitative test.Methods According to Clinical and Laboratory Standards Institute(CLSI)EP12-A2 document,analyzed the bias and imprecision of urineprotein qualitative test between the Aution MAX AX-4030 and Roche CobasU411 system.Their C50 ,C5 ~C95 intervals and imprecision curves were compared.The protein of 310 specimens were simultaneously determined by both Cobas U411 and AX-4030,in order to eval-uate their concordance.Results C50 for AX-4030 system was less than that for Cobas U411;C5 ~C95 interval of AX-4030 system was narrower than CobasU411.The imprecision curve of AX-4030 system was steeper than Cobas U411.The com-parison of the two analysis systems showed that the concordance was 96.8%,the positive concordance was 82.7%,and the negative concordance was 99.6%.The 95% credibility interval (CI)was 94.2%~98.16% and the Kappa value was 0.88. Conclusion For the sensitivity and imprecision of urine protein test in the C50 critical value,the AX-4030 system was better than Cobas U411.The concordance of them in determining clinical specimens was pole-strength.The evaluation recommen-ded by the EP12-A2 document is practical and effective.

Objective To investigate the changes of antimicrobial peptide LL-37 and C-reactive protein (CRP ) in the patients with Pseudomonas aeruginosa positive sputum culture and their mutual relation . Methods Fifty cases of Pseudomonas aeruginosa positive sputum culture and 27 cases undergoing physical ex-amination in the Guangdong Provincial Hospital of Chinese Medicine from September 2016 to May 2017 were selected as the research subjects .The level of antimicrobial peptide LL-37 was detected by double antibody sandwich ELISA and the CRP level was detected by immunoturbidimetry .Results The levels of antimicrobial peptide LL-37 and CRP in the Pseudomonas aeruginosa positive sputum culture group were significantly high-er than those in the healthy control group ,the difference was statistically significant (P< 0 .05) ,and they showed the positive correlation (r=0 .411 ,P<0 .05) .Conclusion In positive sputum culture of Pseudomonas aeruginosa ,antimicrobial peptide LL-37 and CRP levels are increased ,which has a certain clinical application value for the early diagnosis of infection .

Construction and ethanol production effects of SNF4 gene knockout in Saccharomyces cerevisiae were described in this paper. For knockout of SNF4 gene in S. cerevisiae YS2, a PCR-amplified disruption cassette was used, encoding the short flanking homologous regions to the SNF4 gene and Kan(r) as selectable marker. The SNF4 gene disruption cassette was transformed into S. cerevisiae YS2 through LiAc/SS Carrier DNA/PEG. The positive transformants were grown on G418 plates and verified by PCR. The Kan(r) marker was rescued by transforming plasmid pSH65 into positive transformants and inducing expression of Cre recombinase in galactose-containing medium. Lastly, the YS2-deltaSNF4 strain, in which SNF4 allele gene were completely knocked out, was obtained by repeating the same procedure. The result of anaerobic fermentation showed that ethanol production of the SNF4 gene knockout strain had increased by 7.57 percent as compared with the original strain YS2. The experiment indicated ethanol production could be improved significantly with the approach ofSNF4 gene knockout by Cre-LoxP system.
AMP-Activated Protein Kinases ; genetics ; Ethanol ; metabolism ; Fermentation ; Gene Knockout Techniques ; methods ; Mutation ; Saccharomyces cerevisiae ; genetics ; Saccharomyces cerevisiae Proteins ; genetics ; Transcription Factors ; genetics

Objective To observe the effect of Kinesio Taping with lattice shapes on pregnancy-related low back pain (PLBP). Methods From March, 2017 to April, 2018, 56 patients with PLBP were randomly divided into the control group (n = 28) and experimental group (n = 28). Both groups received the core stability training, while the experimental group accepted Kinesio Taping with lattice shapes additionally. They were assessed with Visual Analogue Scale (VAS), Roland-Morris Dysfunction Questionnaire (RMDQ), range of lumbar activity and torso angle before, three days and two weeks after treatment. Results The range of lumbar activity improved significantly in both groups (t > 6.327, P < 0.01) three days after treatment, while the scores of VAS and RMDQ, and the torso angle improved significantly in the experimental group (t > 4.862, P < 0.001). The scores of VAS and RMDQ, the range of lumbar activity, and the torso angle improved significantly in both groups two weeks after treatment (P < 0.001), and improved more in the experimental group than in the control group (P < 0.05). Conclusion Kinesio Taping with lattice shapes combined with core stability training can further reduce the lower back pain and improve the function for the PLBP patients.

Objective A program-controlled flexible multi-point temperature measurement device was self developed for collection and analysis of skin temperature signals of diabetic patients and healthy subjects under resting and heating conditions so as to assess vasodilation function of the microcirculation, Methods With reference to the endothelial regulation spectrum of human body, wavelet analysis was performed on skin temperature signals, and the temperature fluctuation amplitudes in diabetic group and healthy control group were compared at different time periods after thermal stimulation. Results The temperature fluctuation amplitude in endothelial spectrum of diabetic group was smaller than that of healthy control group, and the decrease in skin temperature fluctuation after the power-off of thermal stimulation was remarkably smaller than that of control group, indicating that the response to thermal stimulation for diabetic patients was slower. Conclusions Vasodilation function can be quantitatively evaluated by using the fluctuation of skin temperature signals in endothelial spectrum band. Skin temperature monitoring is a potentially easy-implemented method for the health management and early diagnosis of microvascular diseases in diabetic patients.