Objective:To construct an expression plasmid of siRNA against gene hIAP-2 and to assess its effect on breast cancer cell line MCF-7.Methods: A hIAP-2 siRNA plasmid was constructed with mU6pro vector containing U6 promotor and its RNAi effect on MCF-7 cells was detected by RT-PCR and Western blot.The effects of the plasmid on MCF-7 proliferation were analyzed by MTT assay,on the cell cycle by flow cytometry,and on the cell morphology by Hoechst staining.The activity of caspase-3 was determined with its substrate Ac-DEVD-pNA and the expression of some related proteins was detected by Western blot.Results: The hIAP-2 siRNA plasmid knocked down hIAP-2 expression in MCF-7 cells specifically and obviously,inhibited tumor cell proliferation and arrested the MCF-7 cells at G_(1) phase.After hIAP-2 gene was silenced,MCF-7 cells became multinuclear and had macronucleus;procaspase-3 was activated and its expression was increased.The protein levels of I?B?(p37) and p21~(waf1) increased,of NF-?B(p65) decreased and Cyt C remained unchanged.Conclusion: hIAP-2 in MCF-7 cells plays a crucial role in cell proliferation and cell cycle progression.Mitotic cell death might be the main way of the cell death;G_(1) arrest after DNA damage might be associated with the p21~(waf1) increase.

Objective To investigate the effects of different times of needle retention on cognitive function in patients with vascular cognitive impairment no dementia (VCIND). Methods One hundred and four VCIND patients were randomly allocated to group A of 35 cases, group B of 34 cases and group C of 35 cases. All the three groups received acupuncture plus medication. Of them, group A was given scalp acupuncture with 30 min retention of needles;group B, with 1 hr retention of needles;group C, with 10 hrs retention of needles. The Montreal Cognitive Assessment (MoCA) score and the ADL score were recorded in the three groups of patients before and after treatment. Results There were statistically significant pre-/post-treatment differences in the MoCA score and the ADL score in every group (P<0.05). There were statistically significant post-treatment differences in the MoCA score and the ADL score between group A or B and group C (P<0.05). Conclusions Acupuncture is an effective way to treat VCIND. It can improve cognitive function in the patients. Scalp acupuncture with 10 hrs retention of needles has a more marked effect.

With the development of global warming,urbanization,ageing of the population,it is paid more attention to the human health impacts on the frequent occurrence of heat wave and urban heat island effect.The study methods and advances in impacts of heat wave on human health were reviewed in the present paper.

BACKGROUND: Study on epidermal stem cells (ESCs) is satisfying. However, the amount and the distribution dynamic changing rule in each skin layer of ESCs during survival of skin graft need to be investigated.OBJECTIVE: To observe the changing rule of ESCs in the microenvironment during the survival of full-thickness skin graft.DESIGN: Prospective animal experiment based on controlled observation.SETTTNG: Department of Burn and Plastic Surgery, First Hospital Affiliated to Nanhua University.MATERIALS: Forty-two Wistar rats of clean grade and either gender, aged 2 to 3 months, weighing about 200 to 250 g,were provided by the Experimental Animal Center of South China University. After being raised for 1 week, the rats were divided into 7 groups according to observation time: post-operation 24 hours, 3 days, 5 days, 7 days, 14 days, 21 days and 30 days groups, with 6 rats in each group. Primary antibody: rabbit anti-rat integrinβ1 polyclonal antibody (Boster Biological Company, Wuhan); mouse anti-rat p63 monoclonal antibody (Santa cruz Company); Second antibody: goat anti-rabbit lgG (Zhongshan Biological Company, Beijing), goat anti-mouse lgG (Zhongshan Biological Company, Beijing);S-P immunohistochemical kit and DAB kit (Zhongshan Biological Company, Beijing).METHODS: This experiment was carried out in the Animal Laboratory of Nanhua University in May 2006. ①An area of (1.5×1.5) cm2 autologous full thickness skin graft model was made on the back of the all the rats. The color change of skin graft was observed at different time points. Meanwhile, whether hematocele and fluidify as well as binding to wound appeared under the skin graft were investigated. ②During the operation, a few skin graft was taken from each rat and immediately fixed with 100 g/L neutral formaldehyde solution and labeled, serving as blank control group. ③Skin graft packages of rats in the post-operation 24 hours, 3 days, 5 days, 7 days and 14 days were open at corresponding time points. Skin tissues were cut from the center of each wound and labeled; Skin graft packages of rats in post-operation 21 days and 30 days groups were open at postoperative 14 days. Rats in the two groups were raised till post-operation 21 days and 30 days, respectively, and skin tissue was cut from the center of skin graft. ④Pathological sections were made for haematoxylin and eosin (HE) staining and immunohistochemical staining.MAIN OUTCOME MEASURES: ①The amount of inflammatory cells, epithelization degree and the level of fibrocytes in the section. ② Integrin β1 and gene p 63 positive cell rate.RESULTS: Forty-two Wistar rats were involved in the final analysis. ①Gross observation of wound: At postoperative 1 to 2 days, the skin graft was pale and edematous; At postoperative 3 days, the color of skin graft did not turn better, but skin graft closely attached to the wound; At postoperative 7 days, the color of skin graft obviously turned better,epidermal color was close to normal, skin graft more closely attached to the wound, and some hair roots grew out of the wound; At postoperative 14 days, wound border and wound had healed completely; At postoperative 30 days, the color of skin graft became darker than normal, and the hair grew in the wound as in the normal skin. ②Observation results of HE stained pathological sections: Cellular edema and small quantity of inflammatory cell infiltration were found in the skin graft of the former 4 groups; Partial keratinocytes were necrotic and fell off at postoperative 5 days. ③Changing rule of distribution and amount of positive cells: Before operation, β1 integrin and gene p63 positive cells were mainly distributed in the epidermal basal membrane and eminence of hair follicle. Positive cells appeared in each epidermal layer from postoperative 24 hours and gradually increased. At postoperative 14 days and 21 days, many positive cells appeared in each epidermal layer. At postoperative 30 days, positive cells were distributed mainly in the basal layer of epidermis, and slightly in the other layers. Among the immunohistochemical sections, genic substance p63 positive cells were more thanβ1integrin positive cells at the same time point. p63 positive cells began to decrease from postoperative 24 hours,reached the lowest level at postoperative 3 days, then were gradually increased, reached or were close to the preoperative level at postoperative 7 days, reached the highest level at postoperative 21 days, subsequently were gradually decreased, and were still higher than preoperative level at postoperative 30 days.CONCLUSION: ①During the survival of full-thickness skin graft, ESCs are firstly decreased, then gradually increased, and even over the level in the normal skin. ②During the survival of full-thickness skin graft, firstly, ESCs arrange disorderly in the skin, and then they gradually gather in the epidermal basal membrane and eminence of hair follicle.

Objective To discuss the effect of the PDCA cycle in enhancing the case care ability of nurses in order for nurses to adapt to the assessment model of cases tracking.Methods The training was carried out for enhancing nurses' ability of case care according to the PDCA cycle.Results The scores of the case care,the quality of care in wards and the patient satisfaction degree increased significantly after applying the PDCA cycle compared with those before.The aims of ensuring medical safety,improving the work quality,and increasing patient satisfaction were achieved.Conclusions Training nurses' ability of case care following the PDCA cycle can effectively improve the nurses' ability of case care,make them adapt to the case tracking assessment model,which is worthy of promotion.

ObjectiveTo investigate the correlation of TIMI risk score and plasma brain natriuretic peptide (BNP) in patients with Acute myocardial infarction. MethodsTIMI risk score were calculated in 63 patients with acute myocardial infarction;At the same time plasma brain natriuretic peptide were measured by enzyme-linked immune absorption assay(ELISA). Analyze the correlation of TIMI risk score and plasma brain natriuretic peptide. ResultsNine patients of 63 occurred cardiavascular events during hospitalization or follow-up( 14.3％ ). The incidence of MACE increased significantly with the rise of TIMI risk score and BNP level. The TIMI risk score was positively correlated with the plasma BNP level( r =0.73 ,P ＜ 0. 05 ). ConclusionThe higher TIMI risk score and BNP level, the worse the prognosis, it could be use to predict the prognosis.

In recent years,high-temperature heat wave caused an increase in the number of deaths than other climate disasters,the study of the effects of heat waves on the health of urban residents health becomes a subject of concern.Sustained high-temperature heat waves will inevitably cause harm to human health,to understand the characteristics of heat waves is conducive to the prediction of high temperature heat waves and to the establishment of reasonable response measures.This paper mainly introduces the present status of heat wave occur,the impact of heat wave on human health,the influencing factors for excess mortality during heat waves as well as the research methods for heat wave which are commonly used to predict.

[Objective]To evaluate the effects of mosapride combined with acupressure at selected time and psychotherapy on constipation-predominant of irritable bowel syndrome.[Methods]A total of 86 patients with constipation-predominant of irritable bowel syndrome(C-BS) randomly divided into two groups:the treatment group(n=43) and the control group(n=43). Every patient in the study was diagnosed C-BS according to Rome II criteria. Patients in control group took mosapride (5mg,tid) and in treatment group acupressure at selected time and psychotherapy were givn besides mosapride.[Results]The total effective rate of the treatment group was 86.0%,which was superior to that of the control group(60.5%)(P

AIM: To investigate the protective effects of quercetin on nephrotoxicity induced by cyclosporine A(CsA)in rats. METHODS: Male Sprague-Dawley (SD) rats were divided into four groups of seven rats each. Control group, quercetin (40 mg/kg) group, CsA (40mg/kg) group, CsA (40 mg/kg) plus quercetin (40 mg/kg) group. The all groups were administered once day respectively for 15 days. Twenty-four hour urines were collected at the 10th and 14th day respectively after administration to measure the content of urinary protein and urinary N-acetyl-?-D-glucosaminidase(NAG). The animals in all groups were sacrificed 4 h after the last administration. Blood samples were collected to measure serum creatinine(SCr), blood urea nitrogen(BUN). Kidneys were removed rapidly, excised and sectioned for histological analysis. Other kiney tissues were utilized for biochemical analysis. RESULTS: Quercetin prevented urinary protein, SCr, BUN, NAG, and kidneys histological alterations.Quercetin significantly decreased malondialdehyde(MDA) content while significantly increased glutathione(GSH) content and glutathione-S-transferase(GST), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase(CAT) activities of kidneys tissues in the rats treated with CsA. CONCLUSION: Quercetin can effectively attenuate the nephrotoxicity induced by CsA.

Objective To investigate the effects on intraocular pressure and blood pressure following anterior chamber paracentesis in acute primary angle closure glaucoma with high blood pressure.Methods 64 eyes of 64 glaucoma patients with high blood pressure were received anterior chamber paracentesis.the intraocular pressure and blood pressure were measured before and after paracentesis.Results The mean systolic blood pressure(SBP) and diastolic blood pressure(DBP) before paracentesis of 64 glaucoma were 195.10?15.24mmHg and 117.1?11.76mmHg respectively,after administration of paracentesis,the SBP and DBP were 138.82?20.86mmHg and 93.19?12.07mmHg respectively,the intraocular pressure also significantly decreased from 68.64?10.05mmHg to 10.66?4.41mmHg.There was statistical difference in SBP,DBP and intraocular pressure before and after administration of paracentesis.Conclusions Administration of paracentesis in acute primary angle closure glaucoma with high blood pressure can significantly reduce intraocular pressure and blood pressure simultaneously.