Objective To investigate the impact factors for temperature of cornea(TOC) and analyse the relationship between TOC and evaporative dry eye. Methods Two hundred and fifty-seven patients(405 eyes) with normal lacrimal secretion received dry eye tests.Patients were divided into positive group and negative group according to the results,and were randomly subdivided into 4 groups with different environment temperature(T) and relative humidity(RH).For all eyes,TOC,body surface temperature(TBS) of forehead and center corneal thickness(CCT) were measured right after blinking.The impact factors for TOC and the differences in TOC between positive group and negative group were analysed.Results TOC was positively correlated with TBS(r=0.89),T(r=0.75) and RH(r=0.60)(P

Objective To investigate the incidence and the drug-sensitivity results of mycoplasma infection in genital tract from the gynecological outpatients,in order to provide a laboratory evidence for clinical rational use of drug.Methods The drug sensitiv-ity kit was used for isolation and culture of mycoplasma,reproductive tract secretions samples of 1 067 cases of gynecological pa-tients were collected to do mycoplasma identification and drug sensitivity test.Results In 1 067 samples,the positive rate of myco-plasma were 659 samples,including ureaplasma urealyticum(Uu)positive rate was 72.99%(481/659),mycoplasma hominis (Mh) positive rate was 3.79%(25/659),Uu and Mh positive rate accounted for 23.22%(1 53/659).The drug sensitivity results of 12 kinds of antimicrobial agents showed that single infection Uu was more sensitive to josamycin,doxycycline,minocycline,tetracy-cline,clarithromycin,azithromycin and roxithromycin.Single infection Mh was more sensitive to doxycycline,josamycin,minocycline and tetracycline.Mixed infection of Uu and Mh was more sensitive to josamycin,minocycline and doxycycline.Conclusion The main pathogen isolated from patients infected with plasma in our hospital is Uu,whether single Uu or Uu,Mh mixed infection,there are differences in the sensitivity of antimicrobial,clinicians should use drug rationally according to the conditions of patients and drug sensitivity results to reduce drug resistance rate.

Objective To evaluate the clinical application of contrast-enhanced digital subtraction MRI in musculoskeletal malignant tumors.Methods Fifty patients with musculoskeletal malignant tumors were scanned by contrast enhanced T 1WI with an injection of Gd-DTPA (0.1 mmol/kg), and digital subtraction was performed between post-contrast-enhanced images and pre-contrast-enhanced images. Musculoskeletal malignant tumors were evaluated by means of a contrast-to-noise ratio (C/Ns). Imaging sign of the musculoskeletal malignant tumors were compared between subtraction MR images and conventional contrast enhanced MR images.Results Contrast-enhanced digital subtraction MR images were better than conventional contrast enhanced MR images. All cases were confirmed by operation or pathology. All the lesions had higher C/Ns on subtraction MR imaging than on conventional contrast enhanced MR images. C/Ns was 109.74?5.10 (?s) for subtraction MR imaging and 23.61?3.16 for conventional contrast enhanced MR images (t=101.51, P

The growth-propagation and decolorization-degradation systems for the model dy e Biebrich Scarlet by Trametes hirsuta were established preliminar ily. It was showed that 30℃ and the static culture were better; the effects of compo nents in culture media on the efficiencies of decolorization and degradation wer e not significant; considering the convenience of observing the changes of dye c o lors and shortenig the culture period, the potato liquid medium had the advantag e of others as a preferable medium for reaction systems of Trametes hirsuta . The decolorization and degradation of all dyes Biebrich Scarlet and Direct Deep Blu e L-3RB, Reactive Blue X-BR, Basic Violet 5BN, and Methylene Blue by Tramete s hirsuta were better.

Objective To investigate the complications of different enteral nutrition in patients after surgery for massive cerebellar infarction,so as to guide rational application of enteral nutrition in patients.Methods Forty-nine patients with massive cerebellar infarction were divided into three groups randomly:conventional nasogastric tube feeding group (group A,n =12),nasogastric tube feeding plus gastric motor drug group (group B,n =18),and nasojejunal tube feeding group (group C,n =19).The incidences of diarrhea,reflux,aspiration,upper gastrointestinal bleeding and aspiration pneumonia within 3 weeks after initiation of enteral nutrition were observed and compared among the groups.Results The incidence of diarrhea showed no statistically significant difference among the 3 groups (x2 =0.092,P =0.955).Compared with group A,the incidences of reflux,aspiration and aspirafion pneumonia were significantly lower in group B and group C (P ＜ 0.05),and lower in group C compared with group B (P ＜ 0.05).Compared with group C,the incidence of upper gastrointestinal bleeding was significantly lower in group C than in group A and group B (x22 =4.748,P2 =0.029;x23 =4.284,P3 =0.038),but the difference between group A and group B was not significant (x21 =0.000,P1 =1.000).Conclusions Because of the unique pathophysiological features in patients after surgery for massive cerebellar infarction,early enteral nutrition by conventional nasogastric tube feeding may be inappropriate.Nasogastric tube feeding plus gastric motor drug may be applied in mild case with short course of disease.Nasojejunal tube feeding may be the approach of choice for enteral nutrition in critical patients with massive cerebellar infarction for its association with lower incidence of complications.

The effects of E-cadherin-transfected neural stem cells (NSCs) transplantation for spinal cord injury (SCI) in rats were investigated. Sixty SD rats were randomly divided into model control group, NSCs group, empty plasmid group and E-cadherin overexpression group (n=15 each). The animal SCI model was established by using the modified Allen's method. NSCs were cultured. Rats in NSCs group were subjected to NSCs transplantation. E-cadherin gene eucaryotic expression vector and pcDNA3.1-E-cadherin were respectively transfected into cultured NSCs, serving as empty plasmid group and E-cadherin overexpression group respectively. At 7th day after transplantation, neurological function of all rats was assessed by Tarlov score. After rats were sacrificed in each group, the number of BrdU and Nestin positive cells was counted by immunohistochemistry. Immumofluorescence method was used to detect the expression of neurofilament protein (NF) and glial fibrillary acidic protein (GFAP). As compared with model control group, the Tarlov score and the number of of BrdU and Nestin positive cells, and the expression of NF and GFAP in NSCs group, empty plasmid group, and E-cadherin overexpression group were increased significantly (P<0.05), and those in the E-cadherin overexpression group were increased more significantly than the other transplantation groups (P<0.05). It was suggested that E-cadherin could be conductive to nerve regeneration and repair probably by promoting the proliferation and differentiation of NSCs.

Objective To investigate the safety and effectiveness of transurethral bipolar plasmakinefic resection in treating urethral stricture. Methods Totally 46 patients with urethral stricture were treated with transurethral bipolar plasmakinetic resection, and they were followed up for 3～12 months to observe the clinical effects. Results The segments of urethral scar were accurately incised and resected in all the 46 cases,24～26F bougies could pass through the urethra smoothly, and miction should be kept unobstructed. Totally 41 cases were followed up postoperatively, the maximal flow rate(Qmax) was ( 18.6±4.1 ) ml/s, which was obviously ameliorated as compared with that before operation(t=14.25, P＜0.05);sexual function had no obvious changes before and after operation;no serious complications of urethral massive bleeding, urinary incontinence, fistula of urethral diverticulum,urethral perforation, rectal injury, etc. was observed. Conclusion Transurethral bipolar plasmakinetic resection is an effective method for treating urethral stricture, because it has fewer complications, faster postoperative recovery and lower recurrence.

Plasma exchange is a commonly used blood purification method, h includes plasma exchange,double filtration plasmapheresis and immunoadsorption.Many nervous system diseases have the antibody. Guillian-Barre syndrome is caused by antibodies of the nervous system demyelinafing disease; Myasthenia grads is caused by the acetylcholinc receptor antibodies. CIDP also has autoimmune-mediated mechanism. Plasma exchange can be apphed effectively to remove antibodies, and to quickly improve the patient' s clinical symptoms and shorten the course of disease.

Objective To observe the effects of ulinastatin on the expressions of tumor necrosis factor-α (TNF-α) in the lung tissues of rats with acute lung injmy induced by phosgene, and to explore the mechanism of ulinastafin in treating acute lung injury. Method Sixty-four clean grade healthy male SD rots were randomly divided(random number) into eight groups with eight in each group. Group A1 in which rats were exposed to air. Group A2 in which rots wereexposed to air and treated with saline. Group A3 in which rats were exposed to air and treated with dexamethasone. Group A4 in which mrs were exposed to air and treated with ulinastatin. Group B1 in which rots were exposed to phosgene without treatment. Group B2 in which rats were exposed to phosgene and treated with saline. Group B3 in which rats were exposed to phosgene and treated with dexamethasone. Group B4 in which rats were exposed to phosgene and treated with ulinastatin. The expressions of TNF-α in the lung tissues were measured by using immunohistocheistry. Lung tissues were observed grossly and under 200-fold light microscope to identify the positive expressions in kytoplasm. Results In group B1 and group B2, the wet weight, dry weight and wet/dry weight ratio og right lower lobe of lung were higher thai those in group A1 and group A4( P <0.01 ), and those in group B4 and group B3 were significantly lower than those in group B1(P<0.01 ), but still higher than those in group A1 and A4(P<0.01). The gross observation suggested that the surfaces of lung tissues in group A1and group A2 were slick and rose pink without congestion, dropsy or infarction; the surfaces of lung tissue in groups B1 and B2 appeared with congestion, dropsy and many petechia. The surfaces of lung tissue in groups B3 and B4 were similar to those in groups B1 and B2. Under the light microscope, the structure, of lungs in groups A1 and A2 were clear without congestion, effusion or inflammatory cell infiltration. In groups B1 and B2, the engorgement of lung capillary vessels, congestion and tiny thrombosis were found and there abundant edematous fluid and inflammatory cell infiltration in lung stroma and alveolus with focal pulmonary atelectasis in some lung tissue section. The tissues in groups B3 and B4 showed congestion, dropsy, tiny thrombosis and inflammatory cell infiltration, but these changes were slighter than those in groups B1 and B2. The expressions of TNF-α in groups B1, B2, B3, and B4 were significantly higher thanthose in groups A1 and A2( P < 0.01 ), but the expressions of TNF-α IN group B4 was lower than that in groups B1 and B2(P<0.01). Conclusions Ulinastatin could lessen the lung injury by reducing the expressions of pro-inflammatory cytokines such as TNF-α.