Biomarkers ; analysis ; Environmental Monitoring ; methods ; Humans ; Occupational Exposure ; analysis ; Xylenes ; analysis

Plant insect-resistantgenetic engineering hasopened a new way to prevent and cure against the insect pest incrop and wood productions. With the progresses instudies, many insect-resistantgeneswere cloned and characterized. The classification of most insect-resistantgenes from plant, the functionalmechanism and the applications of theplantinsect-resistantgenes, the problems and prospectsforusing the plant insect-resistant genes in genetic engineering was described.

Objective To study the effect of Tibetan MedicineManu-Xitanggranules on the expression of prostaglandin E2 and TNF-a on adjuvant arthritis (AA) rats.Methods A total of 60 rats were randomly divided into the control group, the model group, the Aspirin group, the low-, medium- and high- dose Manu-Xitang granules groups (each group with 10). Complete Freund's adjuvant method was used for the adjuvant arthritis model except the control group. All the groups started treatment at 8th day, and the treatment last 20 days. The low-, middle- high-dosage groups were treated with 2.0, 1.0, 0.5g/(kg body weight) Manu-Xitang granules, while the the Aspirin group with ASP (0.27 g/kg), control and medol groups with the equal Volume saline. The body weight, the swelling of primary side of arthritis index were observed. The levels of PGE2 and TNF-α were measured by ELISA.Results At 6th, 12th, 18th day, compared with the model group, the body weights in Aspirin group, the low-, middle-, high-dosage groups significantly increased (P<0.05 or P<0.01); at the 6th day, the foot swelling (0.40% ± 0.18%, 0.50% ± 0.25%, 0.55% ± 0.35%vs. 0.85% ± 0.15%) in the Aspirin group, middle-, and high-dosage groups significantly decreased (P<0.05 or P<0.01). And the PGE2 (0.66 ± 0.31vs. 0.39 ± 0.11) and TNF-a (0.72 ± 0.24vs. 0.50 ± 0.15) in the high- dose group were significantly lower than the model group (P<0.05).Conclusions The Tibetan medicineManu-Xitanggranules could treat AA through the changes of PGE2 and TNF-a.

Adult ; Aged ; Aged, 80 and over ; Cardia ; Enteral Nutrition ; Esophageal Neoplasms ; surgery ; Female ; Humans ; Intubation, Gastrointestinal ; Male ; Middle Aged ; Postoperative Period ; Stomach Neoplasms ; surgery ; Time Factors

Objective To study the metabolic change of proton magnetic resonance spectroscopy (1 H-MRS)in the visual cortex and optic radiation region of patients with diabetic retinopathy (DR).Methods 1H-MRS was performed in 20 patients with DR and 20 healthy volunteers on GE 1.5 T MR system respectively.Metabolic peaks of N-acetylasparte(NAA),creatine(Cr,in 3.02 and 3.94 ppm),choline-containing compounds(Cho)and myo-inositol(mI)were observed,and the ratios were analyzed by each other.Independent-samples t test was performed between two sets of data.Results In both visual cortex and optic radiation,the ratios of ml/Cr and mI/CrSee in DR group(0.664 ± 0.052 and 1.453±0.068 in visual cortex,0.717±0.074 and 1.484±0.114 in optic radiation)were significant higher than those in normal group(0.602±0.047 and 1.249±0.044 in visual cortex,0.679 ± 0.075 and 1.334±0.089 in optic radiation,P＜0.05).In DR group,the ratios of CrSec/Cr,Cho/Cr and NAA/Cr in visual cortex and optic radiation were 0.458±0.043 and 0.488±0.052,0.481±0.057 and 0.807±0.110,1.633±0.105 and 1.709±0.140 respectively.In control group.the ratios of those were 0.484±0.041 and0.502±0.056,0.471±0.065 and 0.786±0.109,1.625±0.098 and 1.716±0.135 respectively.The ratios of CrSec/Cr,Cho/Cr and NAA/Cr had no statistic difference between two groups(P＜0.05).Conclusion mI/CrSec is a typical change in the visual cortex and optic radiation region,1H-MRS as a noninvasive examination could provide biochemical and metabolic informations for diabetic patients.

?Proliferative diabetic retinopathy ( PDR ) is a group of disease characterized by neovascular disease complication of diabetes mellitus. Neovascular diseases of eye are one of the major causes of blindness of the world. Recent studies showed that vascular endothelial growth factor ( VEGF) and pigment epithelium-derived factor ( PEDF ) are now accepted as the key cytokine in the development of diabetic retinopathy. Recent progress in the investigation of VEGF and PEDF of PDR are summarized in this review.

Child ; Humans ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive ; complications ; diagnosis ; Male ; Priapism ; etiology ; surgery

Antiviral Agents ; pharmacology ; therapeutic use ; Drug Design ; Herpesvirus 8, Human ; drug effects ; Humans ; Simplexvirus ; drug effects

Environmental Monitoring ; Humans ; Occupational Exposure ; Toluene ; analysis

In the ApoE(-/-) mouse model of atherosclerosis (AS) stable plaque, the expression and location of intracellular tissue factor (TF) in the cellular components of AS stable plaque were investigated in order to explore the cellular mechanism of AS thrombosis. Pathological changes of the stable plaque were observed under a microscope. The expression of TF protein was examined in aortic stable plaque of mice by using immunohistochemistry. Color image planimetric system was used to analyze the histological components of the stable plaque and the TF distribution. Under the confocal microscope, the intracellular TF location in the stable plaque of mice was observed. The results showed the cellular area was the major part of stable plaque (67.36%+/-6.52%, P<0.01). The percentage of total area occupied by cellular area was significantly larger than atheromatous gruel and acellular area (P<0.01). Macrophages and smooth muscle cells (SMC) were major cells in the cellular area. The percentage of total area occupied by SMC was significantly larger than by macrophages (P<0.01). Multiple linear regression analysis showed there was a positive correlation between TF area and SMC area (r=0.616, P=0.008), and no correlation was found between TF area and macrophage area (r=0.437, P=0.08). Pictures of color image planimetric analysis of TF and SMC were merged to highlight areas with co-localization (yellow), it was concluded that the process could be a cell-mediated TF expression in the stable plaque. SMC may be the major source of TF in AS without plaque rupture.