Hypertension, which has variant of pathogenesis, is one of the most widely spread chronic diseases with serious complications. Antihypertensive drugs can reduce blood pressure and alleviate or reverse cardiovascular remodeling by affecting one or more processes of blood pressure adjusting system. This review focus on targets of antihypertensive drugs associated with Renin angiotensin system, Adrenergic system, Bradykinin Prostacyclin system, Endothelia factor relative system, iron channels and the progresses in the studies of gene therapy for hypertension.

Atherosclerosis is a pathegenesis process involved in the inflammatory and proliferative responses of cells in which endothelial cells have an important function in the regulation of a variety of genes. A variety of molecules have been identified in the atherosclerotic environment that are able to activate NF ?B. Possible functional implications for activated NF ?B in atherogenesis are discussed by protecting endothelial cells selectively, perhaps, it may provide a new method for the therapy of the atherosclerosis.

Adult ; Humans ; Lumbar Vertebrae ; injuries ; Male ; Spinal Fractures ; surgery ; Surgical Wound Infection ; therapy

Objective To explore effects of heat stress response on neutrophil apoptosis and respiratory burst function. MethodsNeutrophils from each of 18 healthy volunteers were divided into 3 parts,and one part was served as control group,and the other two parts were induced by heat shock or cadmium chloride for heat stress response and named as heat shock group and cadmium chloride group.The neutrophils were incubated in culture medium.At 0,2,3,4,and 6 h following heat stress induction,the heat shock protein(HSP70) expression and the respiratory burst were detected in the neutrophils respectively by using PCR technique and flow cytometer.Level of apoptosis was observed by immuno-fluorescence and flow cytometer DNA ploid at 24 h after heat stress induction. Results In the heat shock and cadmium chloride groups,HSP70 expression at each time point and cell apoptosis at 24 h were significantly higher than those of control group(P

Adult ; Humans ; Joint Dislocations ; surgery ; Lumbar Vertebrae ; injuries ; surgery ; Male ; Spinal Fractures ; surgery

Objective To explore the clinical significance of CT-angiography (CTA) in predicting hematoma enlargement in patients with acute hypertensive cerebral hemorrhage (HICH). Methods A prospective cohort study was performed on 50 patients with HICH. HICH and spot sign were diagnosed definitely by computerized tomography (CT) and CTA within 3 ~ 6 hours of symptom onset. Patients were dichotomized according to the presence or absence of the spot sign. CT scan was repeated immediately when patients′symptoms worsened or at 24 hours after onset of symptoms in order to find out the enlargement of hematomas. The relationship between hematoma expansion and spot sign of CTA was investigated. Results (1) Thirteen (26.0%) patients demonstrated the presence of spot sign of CTA, and 37 (74.0%) patients were without spot sign. Baseline clinical variables were similar in both groups. (2) Hematoma expansion occurred in 14 (28.0%) patients on follow-up. Eleven (84.6%) patients with and 3 (8.1%) patients without the spot sign of CTA were demonstrated hematoma expansion. The significance difference was found between the two groups (X2=24.27,P<0.05). Conclusions In acute HICH patients, CTA provided more radiological information and the CTA spot sign was associated with the presence of hematoma expansion. The spot sign will be recommended as an entry criterion for future trials of haemostatic therapy in patients with acute HICH.

Nanosilver antibiotic devices for gynecological external use are the third-class products of medical devices, whose biological safety and efficiency should be strictly controlled. But there is not yet the national standard or industry standard for the products to control the production process, so their testing method of biological evaluation mainly refers to GB/T16886 "The Guide to Implementation of Biological Evaluation of Medical Devices". To control the biological safety effectively, it's necessary to work out the testing items and methods of the biological evaluation for such products.
Animals ; Anti-Bacterial Agents ; toxicity ; BALB 3T3 Cells ; Equipment and Supplies ; adverse effects ; Female ; Male ; Mice ; Nanostructures ; Rabbits ; Silver ; toxicity ; Toxicity Tests ; methods

ObjectiveTo observe the inhibition effect of docetaxel-loaded lipid microbubbles (DLLM) combined with ultrasound targeted microbubbles destruction (UTMD) on microvessel in rabbit VX2 liver tumor models.MethodsSixty rabbits were randomly divided into 6 groups (n= 10),i.e.Doc group (used docetaxel only),DLLM group (used docetaxel-loaded lipid microbubbles),Doc+US group (used docetaxel combined with ultrasound positioning irradiation),PLM+US group (used microbubbles combined with ultrasound positioning irradiation),DLLM+US group (used docetaxel-loaded lipid microbubbles combined with ultrasound positioning irradiation) and control group.The expression of CD34 and VEGF and microvessel density (MVD) were compared among different groups.ResultsAfter treatment,the expression of CD34 in DLLM+US group was lower,the MVD of DLLM+US group was markedly lower than that of the other groups (P＜0.01),while the expression of VEGF in this group was the lowest among all 6 groups (P＜ 0.01).ConclusionDLLM combined with UTMD can inhibit the generation of microvessels in rabbit VX2 liver tumor,thus inhibit the growth of the tumor.

Objective To identify the polyreactivity of a monoclonal natural anti-keratin autoantibody 3B4 and to analyze its possible molecular me chanism.Methods enzyme-linked immunosorbent assay (ELISA)and immunohistoche mistry were applied to test the binding reactivity of 3B4 against different anti gens and tissues.The variable region genes and their amino acid composition wer e sequenced.Results 3B4 could reacted with a range of antigens and tissues,i n addition to keratin and skin.The variable region genes of its light chain and heavy chain showed high homology with germline genes VK1 am4 and VH1 J558.42.H CDR3 region,which mainly composed of short side chain amino acids(from 294 to 324 nucleotides around the heavy chain),was the only motif that differs from ot her highly homologous immunoglobulin genes.Conclusions The monoclonal natural anti-keratin autoantibody 3B4,with its variable region genes highly homologo us to germline genes,is highly polyreactive.The flexibility of HCDR3 may contr ibute to the polyreactivity.

Trachoma, a contagious keratoconjunctivitis ( KC ) , caused by Chlamydia trachomatis infection, is rife in 57 countries in the world at present. The World Health Organization ( WHO) listed the global alliance to eliminate blinding trachoma by 2020 as one of top priorities of its blindness prevention in 1998. A simplified classification system for identifying and naming trachoma, designated by WHO, and the SAFE strategy based on community intervention were extended continuously in the world in 10 years since then. The trachoma prevalence trend has showed a change compared with that in the past. China has launched the blindness prevention action, aimed to eliminate blinding trachoma by 2016. In this paper, we reviews progress in diagnosis, treatment and epidemic of trachoma since the extension of the SAFE strategy.