ObjectiveTo investigate the mechanism of TNF-? on regulating the blood-labyrinth barrier permeability of cochlea of guinea pig.MethodsThe stria vascularis was acquired from guinea pigs and the endothelial cells were cultured of with purified to establish the models of the blood-labyrinth barrier according to our previous researches.The models were treated with TNF-?(0.05,0.1,0.2 ng/ml)for 30,60,90 min or with serum-free DMEM as control.Then their permeability was measured by Evens blue technique.ResultsTNF-? increases Evans blue transfer across endothelial cell monolayer(P

Objective To observe the changes of F-actin of strial capillary endothelial cells from guinea pig cochlea after TNF-? treatment so as to further study the mechanism of permeability of those cells.Methods Strial capillary endothelial cells were dissociated from guinea pig cochlea and cultured respectively with 0.05,0.1,0.2 ng/ml TNF-? for 90 min,then detected by immunofluorescence laser confocal microscopy for F-actin concentrations.The blank control was set simultaneously.Results TNF-? decreased the content of F-actin in strial capillary endothelial cells(P

To study the changes of ? adrenergic receptor subtypes (? 1 AR,? 2 AR) and angiotensin Ⅱreceptor subtypes (AT 1 R,AT 2 R)mRNA levels in spontaneously hypertensive rat (SHR) hearts at 14 weeks of age, and WKY rat hearts at ages 14 and 48 weeks, the total cellular RNA was extracted from the left ventricular tissue, and reverse polymerase chain reaction analysis was performed for measurement of the four receptors. The expression levels of ? 1 AR mRNA and ? 2 AR mRNA were down regulated in WKY hearts at age 48 weeks and in 14 week SHR. AT 1 R mRNA levels were decreased in 48 week WKY and 14 SHR, and AT 2 R mRNA levels were significantly increased in SHR. The expression levels of ? 1 AR and AT 1 R mRNA were declined following the increase of ages. The levels of ? 2 AR mRNA were down regulated in hypertension and myocardial hypertrophy conditions first because ? 2 AR was more sensitive to myocardial hypertrophy than ? 1 AR. Long term and hyper AngⅡ levels stimulated AT 1 R mRNA down regulation in SHR, and it is the myocardial hypertrophic compensatory process that increases the AT 2 R mRNA levels.

This article summarizes proposals of different international guidelines,clinical cases in clinical institutions at home and abroad and the latest research progress of tumor patients with implanted cardiac pacemaker.In addition,the various factors during the implementation of radiotherapy were analyzed.It is possible that reducing the risk grade and minimizing the unfavorable factors for pacemaker could be achieved by designing the scientific treatment plan and setting the reasonable radiotherapy plan.The radiotherapy plan can be established safely and effectively in malignant tumor patients with implanted pacemaker.

[Objective]This paper is to detail the system thinking of syndrome differentiation and treatment of eczema from the spleen and provide ideas for clinical diagnosis and treatment of eczema.[Methods]Combined with the understanding of eczema in Chinese and western medicine, detailing the ideas of syndrome differentiation and treatment of eczema from the spleen,which includes the etiology and pathogenesis, the basic rule and its application ideas, to reconcile the five internal organs, the syndrome differentiation of physique and caring spleen and stomach.[Results]The basic pathogenesis of eczema is the weak spleen loss the transport function.In clinical treatment,the main method to complement the spleen is preserving its transport function.On the basis of complementing the spleen,different times have different rules.It should clarify the rule of complementing the spleen to get rid of the wet evil.Types of hot evil or hot and wet evil,the rule is to get rid of the hot and wet evil.After symptom relief,herbs to complement the spleen should be added.Types of wet evil or blood deficiency resulting in wind evil,the rule is to complement the spleen to get rid of the wet evil.Attention to regulating the function of organs, not specifically treating the spleen,but make the spleen as the center to reconcile the five internal organs. The weak spleen is the physical tendencies of eczema patients. Individual differences have targeted treatment to correct the physique bias.Medication and daily life always pay attention to caring spleen and stomach.Diagnosis and treatment of eczema from the spleen can have guiding signficance. [Conclusion]The thinking of syndrome differentiation and treatment of eczema from the spleen has a guide to clinical significance,is worthy of further study and popularization.

Acupuncture Points ; Acupuncture Therapy ; Adult ; Ankle ; Cognitive Therapy ; Female ; Humans ; Intestine, Large ; physiopathology ; Middle Aged ; Rectal Diseases ; physiopathology ; psychology ; therapy ; Treatment Outcome ; Wrist

The purifying operating room with tidiness, antisepsis and easy operation is widely used in more hospitals. The same time, depurative flow, manufacturing skill and technical standards of it are still developing. But filter maintenance and replacing as key component has major difference in different region and season. Through four-year exploration and practice, the methods of filter maintenance and replacing were explained, which carry out the questions of consumption and energy efficiency.

Objective To discuss the significance of ventricular rate for patients with persistent atrial fibrillation and to provide theoretical evidence for how to prevent patients of atrial fibrillation from complications such as cerebral embolism and left ventricular dysfunction, and so on. Methods Patients with persistent atrial fibrillation for more than 1 year were divided into cerebral embolism group and non-cerebral embolism group,30 patients per group. The data of patients in both groups were collected and compared, including general clinical characteristics, prothrombin time international standard ratio (PT-INR), the highest, lowest and average ventricular rate detected by Holter monitor system, left atria diameter and left ventricular ejecting fraction measured by echocardiography. Results There was no significant difference between two groups about general clinical characteristics, left atria diameter and PT-INR. The highest,lowest and average ventricular rate were much higher in patients of cerebral embolism group than those in non-cerebral embolism group. However, left ventricular ejecting fraction was much lower in embolism group. Conclusions It is critical to control heart rate for patients of persistent atrial fibrillation to prevent cerebral embolism and left ventricular dysfunction.

BACKGROUND: Recently, miR-378 has been shown to modulate the anti-hypoxia capacity of bone marrowmesenchymal stem cells (BMSCs) and reduce cell apoptosis under hypoxic conditions.OBJECTIVE: To investigate the benefits of miR-378-upregulated BMSC transplantation in a rat model of acutemyocardial infarction.METHODS: Primary rat BMSCs were cultured in vitro. Until passage 3, the cells were infected with the lentiviruscarrying synthetic miR-378 gene fragments. A rat model for acute myocardial infarction was constructed by ligatingthe left anterior descending artery. Thereafter, the animals were randomly assigned to three groups: control group(n=10), BMSCnull group (n=16) and BMSCmiR-378 group (n=16). In the latter two groups, 50 μL of normal salinecontaining 1×107 empty virus-transfected or miR-378-transfected BMSCs was injected into the region of myocardialinfarction, respectively. Only 50 μL of normal saline was injected in the control group. Twenty-four hours later, theapoptosis of transplanted BMSCs was evaluated with TUNEL, and expression level of vascular endothelial growthfactor and transforming growth factor-β was detected using western blot assay. Four weeks after treatment, the leftventricular function of rats was assessed by echocardiography, and then histological and molecular biology analyseswere performed.RESULTS AND CONCLUSION: At 24 hours postoperatively, there were less apoptotic BMSCs and higher expressionlevels of vascular endothelial growth factor and transforming growth factor-β in the BMSCmiR-378 group than in theBMSCnull group (n=6, P < 0.001). Four weeks later, there were more transplanted BMSCs and BMSCs-derivedcardiomyocytes in the BMSCmiR-378 group than the BMSCnull group (n=10, P < 0.001). Moreover, increased new vesseldensity (P < 0.001), decreased infarcted area (P < 0.001), preserved left ventricular ejection fraction (P < 0.05), reducedleft ventricular end-diastolic volume (P < 0.05) were found in the BMSCmiR-378 group, compared with the other two groups.The above parameters were better in the BMSCnull group than the control group (P < 0.05). Overall, the upregulation ofmiR-378 could enhance the capability of BMSCs against hypoxia, and consequently promote myocardial repair afterimplantation, providing a new strategy for cell therapy of myocardial infarction.