Objective To investigate the effect of acute or chronic administration of eseitalopram(ESC)on behavior of mice,which suffered from chronic unpredictable mild stress(CUMS).Methods Mice were exposured to CUMS for 8 weeks,then the behavior of mice were investigated every 2 weeks,and the effect of acute and chronic administration of escitalopram on behavior was compared.Results (1)The body weight of all stressed mice were lighter than control group(18.5±1.1)g from 2nd to 8th week(P＜0.01).After chronic administration of escitalopram,the body weight of cms+Cesc group(18.5±0.6)g were increased relative to other stressed groups(P＜0.01).(2)In open-field test for 15min,the total distance and central distance of stressed groups were further,and numbers of rear were more than control group(P＜0.05)from 2nd to 4th week,but then these indexes were decreased from 6th to 8th week(P＜0.05).After chronic administration,the total distance(57.4±11.0)m,central distance(12.0±3.0)m and numbers of rear(74.2±6.1)of cms+Cesc group increased(P＜0.05).(3)In sucrose preference test,the preference percentage of stressed groups was less than control group(P＜0.05)from 6th to 8th week at 8th week,the preference percentage of cms + Cesc group((79.0±2.7)%)was more than other stressed groups(P＜0.05).(4)In forced swimming test,compared with control group,immobility time of stressed groups became longer from 4th to 8th week..After chronic administration,immobility time of cms + Cesc group((124.7±8.00)s)was shorter than other stressed groups.(5)After acute administration,the behavior of cms + Aesc group was not different relative to pure stressed group(P＞0.05).Conclusion Chronic administration of escitalopram show up efficacy on depression behavior of CUMS mice,but acute administration is ineffective.

Objective To study on immunity function in infectious mononucleosis (IM) children infected by Epstein-Barr virus (EBV) and its relationship with clinic and prognosis.Methods Serum immunoglobulin was detected by immunoradiometric nephelometry,expressions of C D3+,CD4+,CD8+,CD19+,CD23+ on T-lymphocytes subset in peripheral blood were measured by flow cytometry in 50 IM (IM group)who was in acute and convalescent period,and compared with 50 healthy controls (control group).Results The levels of IgA,IgG,IgM in IM group with acute period were (0.75 ± 0.65),(7.55 ± 2.05),(1.85 ± 0.55)g/L,in IM group with convalescent period were (0.95 ± 0.55),(8.85 ± 2.25),(1.75 ± 0.65) g/L.In control group,those were (1.25 ± 0.75),(10.65 ± 2.55),(1.80 ± 0.50) g/L.IgA and IgG in IM group with acute period were significantly lower than those in IM group with convalescent period and control group (P ＜0.01),but IgM was no significant difference among them (P ＞0.05).The levels of CD3+,CD4+,CD8+,CD4+/CD8+,CD19+,CD23+ in IM group with acute period were 0.6050 ± 0.0850,0.2080 ± 0.0315,0.6520 ± 0.0520,0.45 ± 0.35,0.0580 ± 0.0205,0.0250 ± 0.0135,in IM group with convalescent period were 0.7220 ± 0.0820,0.3575 ± 0.0375,0.3565 ± 0.0565,1.45 ± 0.45,0.1580 ± 0.0280,0.0625 ± 0.0225.In control group,those were 0.7530 ± 0.0830、0.4850 ± 0.0450、0.3275 ± 0.0575 1.48 ± 0.55、0.1850 ± 0.0560、0.0805 ± 0.0175.CD3+,CD4+,CD4+/CD8+,CD19+,CD23+ in IM group with acute period were significantly lower than those in IM group with convalescent period and control group (P ＜ 0.05),but CD8+ was significantly higher than that in IM group with convalescent period and control group (P ＜0.05).Conclusion The abnormality of immunoglobulin and T-lymphocytes subset in children infected by EBV is obvious.

Objective To investigate the clinical and imaging features of the reversible posterior leukoencephalopathy syndrome(RPLS).Methods The clinical and imagig data of 9 patients with RPLS were analyzed retrospectively.Results Among the patients,4(44%)were secondary to pregnancy-induced hypertension syndrome,1(11%)was second to short bowel syndrome,1(11% )was second to acute lymphoblastic leukemia,1( 11% )was second to IgA nephropathy,and 2(22%)were second to hypertensive encephalopathy.Their mean age of symptom onset was 23.4 ± 9.9 years.Their main clinical manifestations were headaches,seizures,blurred vision,and consciousness disturbance.Magnetic resonance imaging(MRI)showed symmetrical lesions of bilateral white matter in posterior brain.T1 weighted imaging and diffusion-weighted imaging showed low or isointense signal.T2 weighted imaging,fluid attenuated inversion recovery(FLAIR),and apparent diffusion coefficient(ADC)map showed high-intensity signal.The symptoms of the patients disappeared after the treatment.MRI reexamination showed that the lesions disappeared completely or almost completely.Conclusions The causes of RPLS were different.The imaging mainly showed the signal of vasogenic brain edema on the posterior white matter of the brain.After timely treatment,the symptorms and imaging features were improved rapidly.The patients with young-onset RPLS are their important clinical feature.[Key wonds]Posterior leukoencephalopathy syndrome;Magnetic resonance imaaging;Hypertension;Age factors were improved rapidly.The patients with young-onset RPLS are their important clinical feature.

This paper summarizes the intraoperative care of 9 ovarian cancer patients undergoing cytoreductive surgery combined with intraperitoneal hyperthermic perfusion chemotherapy.During the operation,strict aseptic procedure,protection and isolation of normal organs were emphasized to prevent postoperative infections and diffusion of cancer cells.During intraperitoneal hyperthermic perfusion chemotherapy,the nursing care focused on tube management to maintain unobstructed and fluid volume,prevention of fluid leakage,skin care and prevention of pressure induced injuries.

OBJECTIVETo investigate the effect of photodynamic therapy combined with compound betamethasone in the treatment of hypertrophic scar.

METHODS37 cases of keloid were divided into two groups, 19 cases in the treatment group, 18 cases in the control group. The patients in treatment group were treated with photodynamic therapy combined with compound betamethasone injection therapy. The patients in the control group were treated by compound betamethasone injection. The effect and recurrence rate were compared before and after treatment.

RESULTSThe effective rate was 89.5% in the treatment group, 55. 6% in the control group, showing significant difference between the two groups (P = 0.029) The relapse rate in treatment group was significantly lower than that in the control group (P = 0.047) CONCLUSIONS: Photodynamic therapy combined with compound betamethasone has good effect and safety for the treatment of hypertrophic scar. The combined treatment can reduce the treatment period and side effects

Betamethasone ; therapeutic use ; Case-Control Studies ; Cicatrix, Hypertrophic ; drug therapy ; Combined Modality Therapy ; methods ; Glucocorticoids ; therapeutic use ; Humans ; Photochemotherapy ; methods ; Recurrence

Objective To explore the incidences of postpartum depression as well as the influencing factors in Guangzhou.Method Nine hundred and seventy women participated in the investigation with the Edinburgh postnatal depression scale(EPDS)to analyze the influenceing factors.Results The incidence rate was 38.87%(377/970). The influencing factors included age,feeding mode,delivery mode and education level.Conclusions The incidence of postpartum depression is at a higher level.The feeding mode,delivery mode and education level are the influencing factors.

BACKGROUND: Salvia miltiorrhiza is widely used to treat angina cordis, ischemic stroke and other ischemic cardiovascular diseases. However, the effects of Salvia miltiorrhiza on ovariectomized rats remain unclear.OBJECTIVE: To observe the effects of Salvia miltiorrhiza on the body mass, food intake, and levels of blood lipids and malondialdehyde (MDA) in ovariectomized rats.DESIGN: A completely randomized and controlled experiment.SETTING: Institute of Physiology and Psychology, School of Basic Medical Sciences, Lanzhou University.MATERIALS: The experiment was performed in the Key Laboratory of Pre-clinical Study for New Drugs of Gansu Province and the laboratory of Institute of Physiology and Psychology, School of Basic Medical Sciences, Lanzhou University from November 2005 to December 2006. Twenty-four healthy female SD rats of 3 months old and (220±2) g were selected. Salvia miltiorrhiza water decoction (equal to 1 g/mL crude drug) was identified and extracted by Drug Control Institute of Gansu Province; MDA kit was purchased from Nanjing Jiancheng Institute of Bioengineering.METHODS: ①The rats were randomly divided into three groups with 8 rats in each group: sham-operated group,ovariectomized group and Salvia miltiorrhiza group. The rats were underwent a bilateral ovariectomy except those in the sham-operated group, which were subjected to a removal of bilateral fat as much as ovariectomized group with the ovaries remained. Rats in sham-operated group and ovariectomized group freely drank water; rats in Salvia miltiorrhiza group freely took 1% water extracts from Salvia miltiorrhiza postoperatively, and the concentration of Salvia miltiorrhiza gradually increased to 12% on the eighth day, which was lasted until the end of the experiment (55 days). ②The food intake of rats in each group was monitored daily, and the body mass was measured every five days. At the end of the experiment, femoral artery blood samples of rats were collected to determine the levels of blood lipids. At the same time,MDA was measured according to the kit.MAIN OUTCOME MEASURES: The body mass, food intake, levels of blood lipids and malondialdehyde in each group.RESULTS: Twenty-four rats all entered the result analysis. ①The body mass of rats in 3 groups was nearly the same before operation (P ＞ 0.05). While the body mass in ovariectomized group on the postoperatively 10th, 20th, 25th, and 55th days was significantly higher than those in sham-operated group (P ＜ 0.01). The body mass in Salvia miltiorrhiza group on the postoperatively 20th, 25th, and 55th days was significantly lower than those in ovariectomized group (P ＜0.05-0.01). ②The food intake in ovariectomized group on the postoperatively 15th, 40th, and 55th days was significantly higher than those in sham-operated group (P ＜ 0.05-0.01), and that in Salvia miltiorrhiza group was significantly lower than those in ovariectomized group at those 3 time points (P ＜ 0.05-0.01). ③At the end of the experiment, the levels of total cholesterol, low density lipoprotein cholesterol, high density lipoprotein cholesterol and triglyceride in ovariectomized group were significantly higher than those in sham-operated group (P ＜ 0.05-0.01). The levels of triglyceride and MDA in Salvia miltiorrhiza group were significantly lower than those in ovariectomized group (P＜0.01, 0.05).CONCLUSION: Salvia miltiorrhiza can significantly reduce the body mass and levels of triglyceride and MDA in ovariectomized rats.

BACKGROUND: Ephedra, a Chinese medicine, is often used to treat obesity with relatively satisfying results recently. However, the effects of Ephedra on the perimenopausal and postmenopausal obese women remain unclear.OBJECTIVE: To observe the effects of oral Ephedra decoction on body mass and the levels of blood lipids, blood glucose and hormone in ovarietomized obese rats.DESIGN: A completely randomized and controlled experiment.SETTING: Institute of Physiology and Psychology, School of Basic Medical Sciences, Lanzhou University.MATERIALS: The experiment was performed in the Key Laboratory of Pre-clinical Study for New Drugs of Gansu Province and the Laboratory of Institute of Physiology and Psychology, School of Basic Medical Sciences,Lanzhou University from February 2006 to June 2006. Forty-four healthy female SD rats were randomly divided into four groups with 11 rats in each group, namely sham-operated group, ovariectomized group, estrogen replacement therapy group and Ephedra group.METHODS: ① After having been narcotized by cloraminone (110 mg/kg),rats were underwent a bilateral ovariectomy except those in the sham-operated group, which were also operated, but their ovaries were not cut off. ②Rats in the sham-operated group and ovariectomized group were subcutaneously injected with sesame oil (0.2 mL/each rat) every day postoperatively till the end of the experiment. ③ The rats in the estrogen replacement therapy group were given estradiol (1 mg/kg) by subcutaneous injection every day postoperatively till the end of the experiment. ④ The rats in the Ephedra group freely drank 1% water extracts from Ephedra postoperatively, later the concentration of Ephedra gradually increased to 8% on the sixth day, which lasted until the end of the experiment. ⑤ The food intake was monitored daily, and body mass was measured every ten days. ⑥ At the end of the experiment, all the rats were fasted for 12 hours and collected blood samples for the measurement of serum indexes. The body mass and body length were measured to calculate the Lee's index [(g)×103/body length (cm)] at the same time.MAIN OUTCOME MEASURES: ① Body mass and Lee's index at different time points in each group. ② Food intake at different time points in each group. ③ Levels of blood lipids and blood glucose in each group. ④Levels of estrogen, progesterone and insulin in each group.RESULTS: Forty-four rats all entered the analysis of results. ① Result of body mass and Lee's index at different time points: The body masses on the 20th, 30th, 40th and 50th days in the ovariectomized group were (256.4±14.3),(271.3±16.1), (276.4±12.7), (285.7±24.2) g, which were significantly higher than those in the sham-operated group [(226.5±11.5), (241.8±12.6),(243.1±13.5), (251.1±22.4) g, P ＜ 0.05-0.01], and the Lee's index in the ovariectomized group was greater than that in the sham-operated group(317.2±13.5, 280.4±11.2, P ＜ 0.01). The body masses on the 40th and 50th days in the estrogen replacement therapy group were (243.7±14.8) and(246.2±11.9) g, which were significantly lower than those in the ovariectomized group (P ＜ 0.05-0.01), and the Lee's index (289.9±13.5) was lower than that in the ovariectomized group (P ＜ 0.01). The body masses on the 40th and 50th days in the Ephedra group were (245.4 ±14.1) and(252.4±14.9) g, and the Lee's index was 294.4±11.0, which were all lower than those in the ovariectomized group (P ＜ 0.05). ② Result of Food in take at different time points: The food intakes on the 30th, 40th and 50th days in the Ephedra group were (17.8±2.4), (22.3±3.9), (26.1±3.5) g per day,which were decreased as compared with those in the ovariectomized group[(25.9±4.7), (28.5±5.3), (32.8±5.5) g per day, P ＜ 0.05]. ③ Levels of blood lipids and blood glucose: The levels of triglyceride, cholesterol and low density lipoprotein cholesterol (LDL-C) in the ovariectomized group were (1.73±0.32), (1.45±0.50), (0.78±0.19) mmol/L, which were higher than those in the sham-operated group [(0.94±0.29), (1.05±0.30), (0.08±0.11) mmol/L, P ＜ 0.01]. After the estrogen replacement therapy, the levels of triglyceride, cholesterol, LDL-C and blood glucose were (1.10±0.34),(1.14±0.30), (0.17±0.05), (5.88±1.21) mmol/L, which were lower than those in the ovariectomized group (P ＜ 0.05-0.01), but the level of high density lipoprotein cholesterol (HDL-C) was higher than that in the ovariectomized group [(1.11±0.31), (0.88±0.21) mmol/L, P ＜ 0.05]. The levels of triglyceride, cholesterol, LDL-C and HDL-C in the Ephedra group were (0.97±0.16), (1.11±0.20), (0.59±0.07) and (0.45±0.061) mmol/L, which were lower than those in the ovariectomized group (P ＜ 0.05-0.01). ④ The serum levels of estrogen, progesterone and insulin in each group: The serum levels of estrogen and progesterone in the ovariectomized group were lower than those in the sham-operated group [(17.09±9.00), (28.51 ±7.99) μg/L;(58.69±12.11), (62.73±10.93) μg/L, P ＜ 0.01], the serum level of insulin was higher than that in the sham-operated group [(31.74±6.69),(23.75±6.66) mU/L, P ＜ 0.01]. The serum levels of estrogen in the estro gen replacement therapy and Ephedra group were (36.03±8.83) and (30.18±8.61) ng/L, which were higher than those in the ovariectomized group(P ＜ 0.05-0.01), the level of insulin were (21.34±4.57), (24.86±6.20) mU/L,which were lower than those in the ovariectomized group (P ＜ 0.05-0.01).The serum level of progesterone in the Ephedra group [(17.68±6.19) μg/L]was lower than that in the ovariectomized group (P ＜ 0.01).CONCLUSION: Ephedra can promote loss of body mass, reduce levels of the blood lipids and insulin, and increase the serum levels of hormones in ovariectomized obese rats.

Objective To develop a sensitive and simple LC/MS method for determination of methomyl in blood samples.Methods Methomyl was extracted from blood by liquid-liquid extraction with ethyl acetate, and then analyzed on a Zorbax SB-C18 (2.1mm×50mm, 5μm) column. The mobile phase consisted of acetonitrile-0.1% formic acid with gradient elution, at a lfow rate of 0.5 mL/min, at 40℃. LC-MS was performed in ESI source with MRM mode for quantiifcation.ResultsThe linear range of the concentration were 0.05~2.0μg/mL for methomyl (r>0.995). The relative recoveries of methomyl were in the range of 90%~108%. The RSDs of intra-days and inter-day were both less than 15%.Conclusion The method is a simple, quick, sensitive and could be used for determination of methomyl in blood samples.

Objective:To explore the current status and the influencing factors of knowledge, attitude and behavior of radiodermatitis in patients with nasopharyngeal carcinoma undergoing radiotherapy, so as to provide a scientific basis for nursing staff to formulate effective health education programs.Methods:A self-designed questionnaire was used to investigate 220 radiotherapy patients with nasopharyngeal carcinoma in the radiotherapy department of 4 tertiary A hospitals in Hunan Province.Results:The scores of knowledge, attitude, and behavior of radiodermatitis patients with nasopharyngeal carcinoma were (61.58±19.93), (75.70 ±15.64), (65.87±14.21) points, respectively. The main factors influencing of behavior are knowledge, attitude, radiodermatitis grade, radiotherapy frequency, and family personal monthly income level ( t values were 1.978-8.081, P<0.05). Conclusion:At present, patients with nasopharyngeal carcinoma undergoing radiotherapy have a partial understanding of radiodermatitis and poor self-observation of radiodermatitis. Nursing staff should pay special attention to the patients with incomplete knowledge, negative attitudes, low family personal monthly income, low frequency of radiotherapy, and low grade of radiodermatitis.