Objective To investigate the involvement of apoptosis in the lesions of patients with psoriasis. Methods The apoptosis was detected with terminal deoxynucleotidyl transferase mediated dUTP biotin nick end labeling (TUNEL), and the expression of p53, PCNA and apoptosis suppressing protein bcl 2 was assessed with immunoperoxidase technique in psoriatic lesions and normal skin. Results A large number of keratinocytes showing biochemical and morphologic features of cells undergoing apoptosis were observed in all the suprabasal layers of the psoriatic epidermis. The plaques from all patients analysed showed marked increase in the number of PCNA positive cells in the middle and basal keratinocytes, and a dramatic reduction in the number of bcl 2 positive cells in the basal cell layer. Conclusion The increased apoptosis of keratinocytes in the lesions of psoriasis might be a homeostatic mechanism to the hyperplasia of cells.

Objective:To study the effects of parathyroid hormone (PTH) on BMP3 expression of cultured human dental papilla mesenchymal cells (DPMCs). Methods:DPMCs were obtained by cell culture, BMP3 mRNA expression was studied by in situ hybridization. BMP3 gene expression of human DPMCs after exposure to 33.3 nmol/L PTH for 5 days were measured. The cells cultured in the medium without PTH served as control.Results: Stronger BMP3 positive signals were observed in PTH treated cells than that in the control cells.Conclusion:PTH stimulats BMP3 systhesis of cultured DPMCs.

Une new flavonoids named as notabilisin K (1), together with four known compounds, morusin (2), mulberrofuran A (3), neocyclomorusin (4) and mornigrol F (5) are separated from 95% ethanol extracts of the twigs of Morus notabilis. Compounds 2-5 are separated from this plant for the first time. Notabilisin I, notabilisin J exhibits certain effect against cells of HCT-116, HepG2 and A2780 with IC50 values ranging from 1.47 μmol x L(-1) to 5.46 μmol x L(-1). Morusin exhibits strong effect against five kinds of human cancer cells (BGC823, A2780, HCT-116, HepG2 and NCI-H1650) with IC50 values ranging from 0.74 μmol x L(-1) to 1.58 μmol x L(-1).
Antineoplastic Agents, Phytogenic ; chemistry ; Benzofurans ; chemistry ; Flavonoids ; chemistry ; Hep G2 Cells ; Humans ; Inhibitory Concentration 50 ; Morus ; chemistry ; Plant Extracts ; chemistry ; Terpenes ; chemistry

Objective To investigate the temperature variation within intra-spinal canal and intra-spinal tumor during percutaneous radiofrequency ablation (RFA) procedure for vertebral tumor in experimental rabbits. Methods Eight New Zealand white rabbits were transplanted with VX2 carcinoma in the lumbar vertebral body by percutaneous puncture inoculation technique under CT guidance in order to set up vertebral tumor models. The eight vertebral tumor models were treated with RFA under CT guidance. The temperature within the spinal canal and vertebral tumor of rabbits was measured and recorded every 30 seconds during the RFA treatment. The results were statistically analyzed by paired sampled t text. Results The intra-tumor temperature rose to 90℃ rapidly and remained stable during the whole RFA procedure, whereas the temperature in the spinal canal exceeded 42℃ when treatment time was over three minutes during the procedure. Statistically significant difference in the temperature level during RFA existed between the spinal canal and the vertebral tumor (P < 0.05). Conclusion The temperature in the vertebral tumor of rabbit can quickly reach to the therapeutic level during RFA. Prolonging operative time of RFA may hurt the nerve due to high temperature.

Objective To study the expression and change of neuropeptide substance P (SP) during the wound healing of deep partial thickness scalding in diabetic rats. Methods Eighty-four Wistar rats were randomly divided into diabetes mellitus group (n=42) and control group (n=42). Diabetic rat models were established by intraperitoneal injection of streptozotocin (STZ) in diabetes mellitus group, and those in control group were intraperitoneally injected with aseptic citrate buffer solution. Deep partial thickness scalding with diameter of 2 cm on the back were prepared in all the rats. The pre-scalding and post-scalding wound specimens of different time points were obtained, and the percentages of wound closure were calculated. The wound specimens were also obtained for immunohistological staining to compare the areas with positive staining of SP, and ELISA was employed to detect the expression of SP in the wound tissues. Results The percentage of wound closure was significantly lower in diabetes mellitus group than that in control group from 7 days post-scalding (P< 0.01). The areas with positive staining of SP in diabetes mellitus group were much smaller than those in control group at different time points, which was most significant on the seventh day post-scalding[(1 350.93±99.28) μm2 vs(1 715.86± 103.41) μm2](P < 0.01). The expression of SP in the wound tissues was significantly lower in diabetes mellitus group than that in control group at different time points, which was most significant on the seventh day post-scalding[(114.04±9.96) vs(143.39±8.94)](P<0.01). Conclusion The significantly lower expression of SP in wound site may be one of the causes of delayed wound healing in diabetic rats.

Objective To evaluate the relationship between carotid plaque neovascularization and coronary heart disease using contrast-enhanced ultrasound. Methods We studied carotid plaques in 312 patients with coronary artery disease by contrast-enhanced ultrasound [51 patients with acute coronary syndrome (ACS) and 261 patients with stable coronary artery disease (sCAD) ]. We analyzed sonographic features of each plaque, including the enhancement intensity of plaque (A value), the ratio of plaque to carotid artery lumen in enhancement intensity (Ratio), plaque thickness and plaque echo (soft plaque, hard plaque, mixed plaque, calcified plaque). Results The average thickness of plaque in patients with ACS and in patients with sCAD had no significant difference in statistics [(2.6±0.4) mm vs (2.9±0.8) mm, t=-1.903, P=0.058) ]. The group with ACS:soft plaque 43 (84.3%, 43/51), mixed plaque 8 (15.7%,8/51), no hard plaque and calcified plaque. And the group with sCAD:soft plaque 174 (66.7%,174/261), hard plaque 19 (7.3%,19/261), mixed plaques 16 (6.1%,16/261), calcified plaque 52 (19.9%,52/261). The percentage of soft plaque in the acute coronary syndrome group was significantly higher than that in stable coronary artery disease group (χ2=6.274,P=0.012). The A value and Ratio in patients with ACS were prominently larger than those in patients with sCAD [ (11.3±3.2) vs (8.9±3.3) dB, t=7.150,P<0.01;0.6±0.2 vs 0.4±0.2, t=7.419,P<0.01].Conclusion Carotid artery plaque neovascularization density was significantly higher in patients with ACS than that in patients with sCAD by using contrast-enhanced ultrasound, revealing that the neovascularization density is closely related to clinical symptoms of patients with coronary heart disease.

Objective To study the protective effect and its mechanism of anti-tumor necrosis factor-?antibody (TNF-? Ab) on lung injury after cardiopulmanary bypass(CPB).Methods Twenty-eight healthy rabbits were selected and randomly divided into four groups:group Ⅰ only received open chest operation;groups Ⅱ-Ⅳ underwent CPB.In the group Ⅳ,rabbit TNF-? Ab (2 400 pg/kg) was dropped into the intracheal tube before operation and just after releasing the aortic clamp.Saline was given to the group Ⅲ in- stead.Blood neutrophils count,TNF-?,MDA from the right and left atrium in the four groups were determined perioperatively.Water volume,TNF-? mRNA,TNF-? protein,apoptosis and pathomorphological changes were measured in the lung tissues.Results TNF- ? Ab can restrain leukocyte accumulation,reduce releasing of TNF-? and MDA in the lung.It can also reduce the occurrence of apop- tosis and attenuate pathomorphological changes in the lung tissue.However,it cannot reduce the secretion of TNF-? at the transcrip- tion level and protein level.Conclusion Intratracheal TNF-? Ab administration has markedly protective effect on lung injury after CPB.

Objective To determine the consumption of sugar-sweetened carbonated beverage and juice/fruit-flavored drink among residents aged 15 years and above in 2013 in Shanghai. Methods Data was extracted from the 2013 Shanghai Non-communicable Disease and Risk Factors Surveillance, in which multi-stage cluster sampling was performed.A total of 25 657 subjects aged ≥15 years across the city were selected for analysis. Results In the study, 34.42% (95%CI:32.33%-36.51%) and 37.85% (95%CI:35.37%-40.32%) of the subjects consumed sugar-sweetened carbonated beverage and juice/fruit-flavored drink in 2013 in Shanghai.The proportions declined with age (P for trend < 0.001), while increased with education level (P for trend < 0.001).They were 65.28% and 69.82% among students, which were much higher than other occupations.Men consumed more sugar-sweetened carbonated beverage than women (37.31% vs 31.37%), whereas less juice/fruit-flavored drink (36.14% vs 39.65%).Among the subjects consumed sugar-sweetened carbonated beverage (n=6 254) or juice/fruit-flavored drink (n=6 701), 52.20% (95%CI:49.41%-54.98%) and 54.04% (95%CI:51.09%-56.98%) consumed 1-3 times a week.The daily average amount of sugar-sweetened carbonated beverage and juice/fruit-flavored drink were 98.64 mL (95%CI:88.92-108.37) and 88.85 mL (95%CI:73.73-103.97), respectively, which were higher among the young (< 45 years old), male and students. Conclusion In 2013 in Shanghai, the consumption of sugar-sweetened carbonated beverage and juice/fruit-flavored drink is highly prevalent among residents aged 15 years and above, especially among the young, male, well-educated and students.Intervention should be tailored to reduce the consumption among at-risk population.

Adenine ; analogs & derivatives ; pharmacology ; therapeutic use ; Administration, Oral ; Alanine Transaminase ; blood ; Antiviral Agents ; pharmacology ; therapeutic use ; DNA, Viral ; blood ; Female ; Guanine ; analogs & derivatives ; pharmacology ; therapeutic use ; Hepatitis B e Antigens ; blood ; Hepatitis B, Chronic ; drug therapy ; virology ; Humans ; Male ; Organophosphonates ; pharmacology ; therapeutic use ; Polymerase Chain Reaction ; methods ; Prospective Studies ; Treatment Outcome ; Virus Replication ; drug effects

Adult ; Alanine Transaminase ; blood ; Antiviral Agents ; administration & dosage ; therapeutic use ; Child ; Child, Preschool ; DNA, Viral ; blood ; Female ; Follow-Up Studies ; Hepatitis B Surface Antigens ; blood ; Hepatitis B e Antigens ; blood ; Hepatitis B virus ; drug effects ; genetics ; Hepatitis B, Chronic ; blood ; drug therapy ; virology ; Humans ; Interferon-alpha ; administration & dosage ; therapeutic use ; Male ; Polyethylene Glycols ; administration & dosage ; therapeutic use ; Recombinant Proteins ; Time Factors ; Treatment Outcome