Background The incidence of dry eye is growing.However,the early diagnosis of dry eye is still difficult up to now.Keratograph 5M analyzer,a novel noninvasive ocular surface analyzer for dry eye may offer important parameters.Objective This study was to evaluate the clinical value of Keratograph 5M analyzer for clinical diagnosis of dry eye.Methods An observational study was proceeded with 88 cases who accepted myopia diagnosis in Tianjin Medical University Eye Hospital from October to December 2013.A series of conventional dry eye-related examinations were performed on the patients,including tear film break-up time (TBUT),corneal fluorescein staining scoring,Schirmer Ⅰ test (S Ⅰ t),and then Keratograph 5M analyzer-related examinations were subsequently carried out,including noninvasive tear film break-up time (NITBUT) and conjunctival hyperemia scoring.The correlations between conventional dry eye-related examinations and Keratograph 5M analyzer-related examinations were assessed by using Spearman rank correlation analysis.Results A total of 88 patients were recruited with male 32 and female 56.No significant difference in age was found between different genders (P =O.34).In 88 patients,Keratograph 5M analyzer showed the non-dry eyes in 15 patients,suspicious 44 patients (50.0％) and dry eyes in 29 patients (33.0％).However,the non-dry eyes were checked out in 39 patients and dry eyes were in 49 (55.7％) based on China Dry Eye Clinical Diagnosis and Treatment Consensus.The first NITBUT (NITBUTf) was less than the average NITBUT (NITBUTav) (P =0.00),and a positive correlation was seen between them (rs =0.62,P =0.00).Dry eye grade was significantly correlated with NITBUTf or NITBUTav or conjunctival hyperemia scoring (rs =-0.60,P =0.00 ; r,=-0.89,P =0.00 ; rs =0.24,P =0.02).A negative correlation was found between the conjunctival hyperemia scoring and NITBUTav (rs =-0.24,P =0.02).However,no significant correlation was seen between conjunctival hyperemia scoring and NITBUTf,TBUT,S Ⅰ t or corneal fluorescein staining scoring (rs=-0.13,P=0.22;rs=0.16,P=0.14;rs =-0.16,P=0.13;rs=-0.08,P=0.44).No significant difference was found between TBUT and NITBUTf (P =0.71).And TBUT was correlated with NITBUTf (rs =0.23,P =0.03),but not NITBUTav (rs =0.18,P =0.09).In addition,no significant correlations were seen between S Ⅰ t and NITBUTf or NITBUTav (rs=0.20,P=0.07;rs=0.05,P=0.66).Conclusions NITBUTav has an important significance in assessing overall ocular surface conditions.The conjunctival hyperemia score is one of refrent indicators to judge ocular surface status.

Objective To investigate the expression of VEGF-C,CD31 and MVD,in human ovarian epithelial carcinoma tissues,development and metastasis of epithelial ovarian carcinoma by observing their expression and analyzing their correlation.Methods 40 samples of ovarian epithelial carcinoma tissues and 20 samples normal ovary tissues were selected from 2004 to 2005 in the third affiliated hospital of Harbin Medical University,as well as 20 cases of normal ovarian tissues samples as control using immunohisrochemical staining assay,we analyzed the expression of VEGF-C,MVD detected by CD31.The relationship of these three factors with patients age tumor stage,differentiation,pathohistological type,were analyzed.Results 67.5%(27/40)had high expression of VEGF-C,15%(3/14)had low espression.The survival of patients with high VEGF-C expression was significantly worse than that of patients with low and negative expression.Conclusion VEGF-C and CD31 may play an important role in the occurrence and development of epithelial ovarian tumors,while MVD maybe associated with the ivasion and metastasis of carcinoma.The detection of VEGF-C combined with CD31 and MVD can objectively reflect the biological behavior of epithelial ovarian tumor.

Objective To investigate the effects of dexmedetomidine on postoperative cognitive dysfunction (POCD) in patients with obstructive sleep apnea. Methods A total of 50 patients with obstructive sleep apnea were divided into 2 groups: a dexmedetomidine group and a control group. Dexmedetomidine and 0.9% saline solution were given before and during the operation in the dexmedetomidine group and the control group respectively. MMSE scores were estimated at different time, and the concentration of serum S100β and NSE were detected before anesthesia at 3 h, 6 h, 24 h and 48 h after operation. Results One day after surgery, MMES score decreased significantly in both groups,of which MMES was notably higher in the DEX group than that in the control group (P<0.05). In both groups, S100βand NSE levels were significantly higher at T2, T3 and T4 than those at T1, and were the highest at T3 (P<0.05). S100β and NSE levels were significantly lower in the DEX group than those in the control group (P<0.05). Conclusion Dexmedetomidine can reduce the incidence of POCD in patients with obstructive sleep apnea. Its mechanism may relate to neuroprotection.

In bone marrow transplantation (BMT), cytomegalovirus (CMV) interstitial pneumonitis (IP) is one of the most dangerous complications, which has been the first important cause to lead the failure of BMT. At present, there is no effective and specific therapy for CMV-IP, therefore how to prevent CMV infection effectively is a top task. From 1991 to 1996, we used comprehensive steps to prevent CMV-IP in BMT, and none of 14 patients developed CMV-IP. The preventing results that we achieved by using the steps were quite satisfied.

Objective To study whether focal mild hypothermia can prolong the therapeutic time window in ischemic stroke, and inquire into the protection mechanisms of focal mild hypothermia on cerebral ischemia. Methods The focal cerebral ischemia and reperfusion model of rats was achieved by intraluminal middle cerebral artery occlusion (MCAO). The adult rats were randomly divided into sham-operation group, normothermia ischemia and reperfusion group and hypothermia ischemia and reperfusion group. The two ischemic groups were respectively further divided into 5 subgroups (subjected ischemia for 2, 3, 6, 8 and 12 h respectively and then all reperfused for 4 h, n=14 per time point). Brain mild hypothermia was achieved 30 minutes after ischemia and maintained to reperfusion period. The neurological deficit scores were assessed. The infarct volumes were evaluated by TTC staining and measured with a computerized image analysis system. TUNEL method was used to observe the neuron apoptosis. The expressions of NF-?Bp65 and NF-?BP65mRNA were detected by immunohistochemistry and hybridation in situ. Results The infarct volumes of hypothermia group were respectively (57.39?37.62) mm~3, (74.09?61.00) mm~3, (81.26?25.46) mm~3, (87.43?54.81) mm~3 and (111.10?43.67) mm~3, which saw significant reductions of 63%, 55%, 56%, 70% and 63% as compared with the normothermia group. In comparison with the normothermia group, focal mild hypothermia also greatly reduced the neurological deficit scores (P

Objective To evalute Qiliqiangxin capsule for improving cardiac function and identifiy Qiliqiangxin capsule for directing cytoprotective effects against apoptosis of cardiomyocytes. Methods Sprague Dawley (SD) rats were tested as subjects and the model rats were built by anterior descending coronary deligation, then the survival rats were devided into 6 groups randomly:sham-operated group(sham,n=8),fed with normal saline of same volume instead;control group(control,n=7),fed with normal saline of same volume instead;Qiliqiangxin great dosage group(great,n=9),Qiliqiangxin 1.2g/(kg?d) treatment;Qiliqiangxin medium dosage group(medium,n=9),Qiliqiangxin 0.6g/(kg?d) treatment;Qiliqiangxin small dosage group(small,n=8 rats),Qiliqiangxin 0.3g/(kg?d) treatment;the captopril group(captopril,n=9),captopril 25mg/(kg?d) treatment.24 hours later,rats in sham operated group and model group were given normal saline,rats in treating group were given Qiliqiangxin,rats in the contrasting group were given captopril.After being treated for 4 weeks, all rats′ heart function was measruated by right flank arteria carotis communis arterial cannula.The left ventricle mass index was calculated and the expression of protein caspase-3 was tested by immunohistochemical method and Westernblot. Results Compared with control group, Qiliqiangxin capsule could reduce effectively BW,HMI,LVMI,increase LVEDP and LVSP,+dp/dtmax and -dp/dtmax.Immunohistochemical analysis and Westernblot analysis showed that adminstration of Qiliqiangxin significantly inhibited caspase-3 expressions in myocardial cells in a dose-dependent manner.Conclusion Qiliqiangxin significantly improved the CHF rat′s cardiac function and reduced the left ventricle mass index and heart mass index 4 weeks after being treated with relative high dose Qiliqiangxin. It might be partially attributed to the suppression of caspase-3 expressions.

BACKGROUND: Hip arthroplasty and internal fixation with intramedullary cannulated screws are mainly used for senile femoral neck fractures. However, osteoporosis can usually lead to failure in internal fixation.OBJECTIVE: To analyze the joint function after fixed with intramedullary cannulated screws in elderly patients with femoral neck fractures, and to explore the factors related to functional recovery.METHODS: Clinical data of 89 patients with femoral neck fractures undergoing internal fixation with intramedullary cannulated screws after 2-year follow-up were analyzed retrospectively. The sex, age, Garden type, bone mineral density, body mass index, screw distribution, reduction index, operation time, bearing time and Harris hip scores were analyzed. Rank related analysis and accumulative Logistic regression analysis were performed on SPSS18.0 software. RESULTS AND CONCLUSION: (1) Normal Q-Q plot and normality test results indicated that the Horris scores in all patients after 2-year follow-up presented with skewed distribution (P=0.000). (2) Rank related analysis showed that age,Garden type, bone mineral density, and reduction index were related with Harris score (P < 0.05 or P < 0.01). (3) Accumulative Logistic regression analysis showed that the independent variables including age, Garden type, bone mineral density, and reduction index made significant effect on Harris hip scores. (4) To conclude, age, Garden type,bone mineral density, and reduction index are important factors for functional recovery of the hip after fixed with intramedullary cannulated screws.

Objective To discuss the genetic diversity of Coptis chinensis.Methods The genetic diversity of 78 individuals from seven populations was analyzed by inter-simple sequence repeat(ISSR).Results Twelve primers were selected to produce highly reproducible ISSR bands.Among 106 amplified bands,72 showed polymorphism,the percentage of polymorphic bands reached to 67.92%.Nei's gene diversity index(H)was 0.180 3,Shannon information index(I)was 0.283 2,Gst was 0.681 5.The genetic distance coefficient and genetic similarity were 0.089 4—0.184 6 and 0.832 1—0.912 7,respectively.ConclusionC.chinensis holds high genetic diversity and the majority of genetic variation occurs among the populations.By cluster analysis,the geographical distribution is very obvious.The ISSR marker could be used for the analysis of the genetic diversity and genetic variation of C.chinensis.

Kidney ischemia-reperfusion injury (IRI) is the major cause of poor prognosis after kidney transplantation and partial nephrectomy. Besides, it is also a critical pathophysiological process of acute kidney injury. Consequently, the prevention and treatment of kidney IRI are of significance to improve clinical prognosis of recipients undergoing kidney transplantation. However, the mechanism underlying IRI is complex, and the exact mechanism remains elusive. Inflammation, as one of the main pathogenesis of IRI, plays a significant role in IRI-induced kidney injury. Nuclear factor (NF)-κB, as a rapid response transcription factor, has been proven to be involved in the regulation of inflammation during kidney IRI. Therefore, in this article, the structure of NF-κB, the activation pattern of NF-κB signaling pathway, the regulatory mechanisms of NF-κB upstream and downstream signaling pathways in kidney IRI were reviewed, and the role of NF-κB signaling pathway in kidney IRI was investigated, aiming to provide novel clinical ideas for the prevention and treatment of kidney IRI.

Objective:To explore the evaluation and influence factors of computed tomography(CT)and magnetic resonance imaging(MRI)on thoracolumbar burst fracture combined with injury of posterior ligament complex(PLC).Methods:A total of 68 patients with thoracolumbar burst fractures who were diagnosed and treated in Handan First Hospital from January 2020 to June 2023 were selected as the research object,and the surgical result was used as gold standard.The 32 cases,who were diagnosed as thoracolumbar burst fractures combined with PLC injury according to the gold standard,were divided into PLC group.The 32 cases without PLC injury were divided into non-PLC group.Before operation,all patients underwent CT and MRI examinations,and the positively and negatively predictive values of CT and MRI in diagnosing thoracolumbar burst fracture combined with PLC injury were calculated by four-grid method.The area under curve(AUC)value,sensitivity and specificity of CT and MRI in diagnosing thoracolumbar burst fracture combined with PLC injury were analyzed by receiver operating characteristic(ROC)curve.Logistic regression model was used to analyze the risk factors of patients with thoracolumbar burst fracture who occurred PLC injury.The differences of the scores of ligamentous complex stability(LCS)score,intraspinal space occupancy rate and thoracolumbar injury classification and severity(TLICS)score,and the scoliosis angle(Cobb),superior iliac crest angle(SIEA),local kyphosis(LK)angle and intervertebral disc space depth(IISD)between two groups were compared.Results:For 68 with thoracolumbar burst fractures,the 34 cases were confirmed as PLC injury and 34 cases were confirmed as non-PLC injury by using CT examination.The positively and negatively predictive values of CT examination were respectively 70.59%(24/34)and 76.47%(26/34)for PLC injury,and the consistency between CT and gold standard was general(Kappa=0.471,P<0.001).The 33 cases were confirmed as PLC injury and 35 cases were confirmed as non-PLC injury by using MRI examination.The positively and negatively predictive values of MRI examination were respectively 90.91%(30/33)and 94.29%(33/35)for PLC injury,and the consistency between MRI examination and gold standard was general(Kappa=0.853,P<0.001).The diagnostic accuracy of MRI was 92.65%(63/68),which was significantly higher than that(73.53%,50/68)of CT(x2=8.843,P<0.05).ROC curve analysis showed that the AUC values of CT and MRI were respectively 0.730 and 0.919 in diagnosing thoracolumbar burst fracture combined with PLC injury.The sensitivities of them were respectively 70.60%and 75.40,and the specificities of them were respectively 88.20%and 95.70%.There were no significant differences between PLC group and non-PLC group in gender,age,body mass index(BMI),cause of injury,LCS score and intraspinal space occupancy rate(P>0.05).There were significant differences in TLICS score,Cobb angle,SIEA,LK and IISD between the two groups(x2=19.443,4.181,4.973,5.198,5.056,P<0.05),respectively.Logistic regression analysis showed that TLICS score>5 points,Cobb angle,SIEA,LK and IISD were risk factors that affected the occurrence of PLC injury in patients with thoracolumbar burst fracture(OR=13.973,1.155,1.365,1.385,5.262,P<0.001),respectively.Conclusion:The efficiency of MRI is higher than that of CT in diagnosing PLC injury in patients with thoracolumbar burst fracture,and TLICS score,Cobb angle,SIEA,LK and IISD have influences on the occurrence of PLC injury in patients with thoracolumbar burst fracture.