Adult ; Aged ; Aged, 80 and over ; Antigens, CD ; metabolism ; Antigens, Differentiation, Myelomonocytic ; metabolism ; Carcinoma, Squamous Cell ; metabolism ; pathology ; Esophageal Neoplasms ; metabolism ; pathology ; Female ; Follow-Up Studies ; Humans ; Lymphatic Metastasis ; Macrophage Activation ; Macrophages ; metabolism ; pathology ; Male ; Middle Aged ; Neoplasm Staging ; Prognosis ; Receptors, Cell Surface ; metabolism ; Survival Rate

Adult ; Asthenopia ; epidemiology ; prevention & control ; Automobile Driving ; Color Perception ; Humans ; Middle Aged

The purpose was to compare the difference between transgene expressions driven by homologous duplicated carbonic anhydrase (DCA) promoter and foreign CaMV35S promoter in the unicellular green alga, Dunaliella salina(D.salina).The CaMV35S promoter-bar construct and DCA promoter-bar construct into D.salina by a Backon 2000 electroporation system were introduced. After the repeated selections with the phosphinothricin (PPT) of 3mg/L, 3 PPT-resistant phenotype transformants were isolated from the CaMV-bar and DCA-bar pools of transformants of D. salina, respectively. The results of PCR and sequencing showed that bar genes were stably integrated into the genome of D.salina, and Southern bolts showed the number of transgene copy had no significant difference between both promoters. Semi-quantitive RT-PCR indicated that the mRNA levels of bar gene were higher in DCA-bar transformants than the CaMV-bar transformants, and could be increased under the induction of high salt in DCA-bar transformants but not in the CaMV-bar transformants. Analysis of growth rate of transformants showed DCA-bar transformants achieved the log stage faster than the CaMV-bar transformants. It is concluded that the homologous promoters have more advantages than the foreign promoters in the transgenic D.salina.

BackgroundDry eye is a multi-factorial-induced tear film and ocular surface disorder.Immunoinflammation plays a key role in the pathogenesis of dry eye.As inhibitor of the cyclo-oxygenase pathway,nonsteroidal anti-inflammatory drugs play an anti-inflammatory and anti-hypersensitivity role,and it can be a potential treatment for dry eyes.ObjectiveThis study was to investigate the effectiveness of nonsteroidal anti-inflammatory drugs (0.1％topical pranoprofen) on moderate to severe dry eyes and its mechanism.MethodsThis was a small sample of randomized controlled clinical trial.Thirty right eyes of 30 patients with moderate to severe dry eyes were included in the study according to the diagnosis criteria and randomized into two groups.The patients of the trial group received topical administration of 0.1％ pranoprofen plus 0.1％ sodium hyaluronate,and those of the control group received the topical 0.1％ sodium hyaluronate only.Ocular surface inflammation index scores (OSDI) and ocular surface fluorescine staining (OSS) scores were measured under the slit lamp,and tear film break-up time (BUT),Schirmer Ⅰ test values were evaluated.The expression of human leucocyte antigen-DR (HLA-DR) and CD11b in conjunctiva epithelial cells were detected by impression cytology and flow cytometry (FCM).All the indexes were compared between the two groups before and after treatment.Informed consent was obtained from all patients.ResultsThere were no significant differences in terms of age and gender and their baseline values between the trial group and control group (t=0.412,P=0.684;x2=0.240,P=0.624),and so were all the indexes (P＞0.05).Compared with the control group,the OSDI,OSS scores and cells positive for HLA-DR were lowered but the BUT was delayed in the trial group on day 15 ( t=2.43,P=0.03;t=2.83,P=0.01;t=3.29,P=0.00;t=3.23,P=0.00 ).No significant differences were found in the Schirmer Ⅰ test value and CD11b expression between these two groups (t=0.17,P=0.87;t=0.28,P=0.79).The OSDI,OSS scores and BUT were significantly improved,and the number of cells positive for HLA-DR were reduced 15 days after administration of drugs in comparison with before treatment in the trial group ( t =12.30,10.70,6.10,7.92,P =0.00 ).However,there were no comparable alteration seen in these indexes before and after the usage of drugs in the control group ( P＞0.05).Positive correlations were found in HLADR expression with OSDI and OSS ( r =0.601,P =0.018 ; r =0.586,P =0.022 ) and a negative correlation in HLADR expression with BUT (r=-0.697,P=0.004) on day 15 in the trial group.ConclusionsTopical usage of 0.1％ pranoprofen is beneficial for remitting the ocular signs and symptoms in moderate to severe dry eyes.This study illustrates that topical usage of 0.1％ pranoprofen can down-regulate the expression of inflammatory markers in conjunctival epithelial cells.

The optimum culture conditions for Acetobacter xylinum NUST4 which produces bacterial cellulose(BC) were obtained by uniform design method.BC production was dependent on MgSO_(4)?7H_(2)O,FeSO_(4)?7H_(2)O and cosubstrates such as p-aminobenzoic acid,nicotinamide,d-Biotin and ethanol.The optimal medium contained glucose 24g,sucrose 22g,peptone 16g,HAc 2.4mL,Na_(2)HPO_(4)?12H_(2)O 3.5 g,KH_(2)PO_(4)?H_(2)O 1 g,MgSO_(4)?7H_(2)O 6 g,FeSO_(4)?7H_(2)O 0.015g,nicotinamide 0.003 g,d-Biotin 0.02g and ethanol 20mL in 1L culture medium.BC yield reached 9.87g(the dried weight) in stationary culture for 7 days,which was 12-fold higher than that in the S-H medium.

AIMTo investigate the effects of melatonin (MT) on histology and behavioral tests during global cerebral ischemia-reperfusion in gerbils.

METHODSGlobal cerebral ischemia was induced by occluding the bilateral common carotid arteries for 10 min in gerbils. Three doses of MT were administrated intraperitoneally 30 min prior to the onset of ischemia. Locomotor activity was measured by using the open field method 3 and 7 days after the ischemic episode. T maze test was carried out 4, 5 and 6 days after ischemia to assess the working memory of gerbils. Neuronal damage was assessed in CA1 pyramidal layer of gerbil hippocampus and evaluated 7 days after ischemia.

RESULTSMT significantly reversed the locomotor activity increases, ameliorated learning and working memory deficit, and reduced the extent of CA1 hippocampal pyramidal cells injury after transient global cerebral ischemia in the Mongolian gerbil.

CONCLUSIONMT provides significantly protective effect against both histological and behavioral consequences of global cerebral ischemia-reperfusion injury in gerbils.

Animals ; Brain Ischemia ; complications ; Female ; Gerbillinae ; Hippocampus ; drug effects ; pathology ; Learning ; drug effects ; Male ; Melatonin ; pharmacology ; therapeutic use ; Memory ; drug effects ; Motor Activity ; drug effects ; Neurons ; pathology ; Neuroprotective Agents ; pharmacology ; therapeutic use ; Random Allocation ; Reperfusion Injury ; etiology ; physiopathology ; prevention & control

OBJECTIVETo evaluate computed tomography (CT) and magnetic resonance imaging (MRI) findings in patients with autoimmune pancreatitis (AIP).

METHODSThe imaging findings of pancreas and extra-pancreas in 24 patients with AIP were retrospectively reviewed. Among them, CT scan was performed in 18 patients, MRI in 11, and bGth CT and MRI in 10.

RESULTSThe pancreas showed diffuse enlargement (25%, 6/24), focal enlargement (37. 5%, 9/24), combined enlargement (25%, 6/24) ,and no enlargement (12. 5%, 9/24). Unenhanced CT showed hypoattenuation in AIP area (n = 2) . After intravenous injection of contrast medium, 17 patients showed abnormal contrast enhancement in the affected pancreatic parenchyma, including hypoattenuation during the arterial phase (50%, 9/18) and hyper attenuation during the delayed phase (94. 4%, 17/18). Precontrast MRI showed abnormal signal intense (n =9), including hypointense on T1-weight images (T1 WI) (n = 7), hyperintense (n = 7) and hypointense (n = 2) on T2-weight images (TIWI). Enhanced MRI demonstrated abnormal contrast enhancement within lesions (n = 11), including hypoattenuation during the arterial phase (81. 8%, 9/11) and good enhancement during the delayed phase (100%, 11111). A capsule-like rim was seen around pancreas (37. 5%, 9/24), among which CT detected in 6 out of 18 patients and MRI found in 7 out of 11 patients.The main pancreatic duct lumen within lesions has no visualization (100%, 24/24) and upstream dilation of the main pancreatic duct (n = 8) , ranging from 2. 2 to 4. 5 mm(mean 3. 1 0. 47 mm) in diameter. Narrowing of the common bile duct was shown in 14 patients. Miscellaneous findings were: infiltration of extrapancreatic vein (n = 9) and artery (n = 1); mild fluid collection around pancreas (n = 2); pseudocysts (n = 3). Fourteen patients also presented one or more of the following extrapancreatic imaging findings: narrowing of the intra-hepatic bile duct or hilar duct (n = 5); thickening of gallbladder wall (n = 5); fibrosis in mesenteric (n = 2), in retroperitoneal (n = 2) and in ligamentum teres hepatis (n = 1); renal involvement (n = 3); peri-pancreatic or para-aortic lymphadenopathy (n = 10); and ulcerative colitis (n = 3).

CONCLUSIONAIP display some characteristic CT and MRI imaging features: sausage-like change of the pancreas; capsule-like rims around lesions; delayed contrast enhancement in the affected pancreatic parenchyma; segment or diffuse pancreatic duct stenosis but mild upstream dilation and extrapancreatic organs involvement. CT and MRI findings combining with serological tests and pancreas biopsy can assist physicians to make accurate and timely diagnosis.

Adult ; Aged ; Autoimmune Diseases ; diagnosis ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Pancreas ; diagnostic imaging ; pathology ; Pancreatitis ; diagnosis ; Retrospective Studies ; Tomography, X-Ray Computed

OBJECTIVETo explore the relationship between alcohol intake and traditional Chinese medicine Syndrome type in patients with cardio-cerebral diseases.

METHODSStudy was conducted in 1013 selected inpatients with myocardial infarction (MI) or/and cerebral infarction (CI) by logistic multivariate regression analysis and comparison among groups.

RESULTSThe scores of blood stasis syndrome showed a decreasing tendency along the increasing of alcohol intake, but it cannot prove that taking alcohol could prevent blood stasis. The scores of dampness-heat syndrome increased in patients who had chronically taken alcohol in large dose.

CONCLUSIONDampness-heat syndrome induced by alcohol is one of the basic mechanisms of cardio-cerebral diseases. Alcohol intake should be restricted.

Adult ; Aged ; Aged, 80 and over ; Alcohol Drinking ; adverse effects ; Cerebral Infarction ; diagnosis ; etiology ; Diagnosis, Differential ; Female ; Humans ; Logistic Models ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Myocardial Infarction ; diagnosis ; etiology ; Surveys and Questionnaires

16 and the distribution of severe trauma more than 2 anatomic parts.They were randomly divided into two groups:intensive insulin treatment group(n=31)and control group(n=31).Intensive insulin treatment group received insulin with insulin pump in order to maintain blood glucose levels at 4.0-6.1 mol/L,while the control group received routine insulin treatment in order to mmaintain blood glucose levels at 10.0- 11.0 mol/L.Plasma levels of TNF-?,IL-1,IL-6, CRP,APACHEⅡscores and cure rate were analyzed before and after the treatment.Data was expressed as mean?standard deviation.Two- tailed T test and ANOVA were used for comparison in SPSS 10.0,and changes were considered as statistically significant if P value was less than 0.05.Results After the intensive insulin treatment, patient's hemodynamic parameter apparently improved,APACHEⅡscores descended,and the levels of TNF-?, Ib-1,IL-6,CRP all declined,in comparison with control group,there were significant differences. Intensive insulin treatment might improve patient's general condition and decrease complications and mortality of severe multiple trauma.

Objective To explore the method of intervening measure applied at dynamic state during ultrasonic scaling treatments and may control the aerosols and spatters in dental department so that we may provide safe clinical environment for dental personnel and patients. Methods 40 patients received ultrasonic scaling treatments were divided into experiment and control group. The experimental group received measures by the ozone air disinfector at the beginning of ultrasonic scaling treatments (the ozone air disinfector worked 5 minutes) and the control group was not received the device treatment.. Air samples were collected at different appointed period. Results A Mann-Whitney test was conducted to determine significant difference between the ultrasonic scaling treatments with the ozone air disinfector and the ultrasonic scaling treatments without the device at different appointed time. The general bacterial population in the air were lower in experimental group than in control group (P < 0.01). Conclusions The ozone air disinfector applied at dynamic state during ultrasonic scaling treatments may control the quantities of colony-forming units of aerosols and spatters in dental clinic. After dynamic disinfection, the quantities of colony-forming units may conform to the National Disinfection Technology Criteria.