OBJECTIVE: To establish a method for determination of cecropin from Plutella xylostella (pxCECAl) by RP-HPLC. METHODS: An Agilent Alltima C18 column (4.6 mm × 250 mm, 5 μm) was adopted, and the mobile phase was composed of metha-nol-acetonitrile-0.05% TFA (2.5:2.5:95) at a flow rate of 1.0 mL · min-1. The detection wavelength was set at 275 nm and the column temperature was 25°C. RESULTS: The linear range of the calibration curve for cecropin was 0.08-0.800 μg (r=0.9994, n=6). The average recovery was 99.69%, and RSD was 1.20% (n=6), respectively. CONCLUSION: The method is rapid, simple, and accurate with good reproducibility. It can be used for quantitative analysis and quality control of cecropin from Plutella xylostella.

ObjectiveTo investigate the nursing scheme to prevent infection,thromboembolism,accidental shedding during application of permanent deep venous catheter in hemodialysis. Methods28 patients undergoing maintenance hemodialysis from January 2007 to February 2009 were randomly divided into the observation group and the control group with 14 patients in each group.The control group took conventional care only,the observation group was given pertinent nursing intervention.After treatment the number of patients with infection and thromboembolism were compared in both groups. ResultsAll patients were successfully placed catheters.Number of patients with infection,thromboembolism and accidental shedding in the observation group were less than those in the control group.But there was no significant difference in average indwelling time of catheters between two groups. ConclusionsApplication of permanent deep venous catheter in hemodialysis shows good effect,it can decrease the incidence of complication and should be widely applied.

Objective To investigate pathogens of hepatitis B virus (HBV) ,hepatitis C virus(HCV) and treponema palladium (TP) current infection situation and trend among voluntary blood donors in Pingdingshan city .Methods The testing results of HB-sAg ,anti-HCV and anti-TP among voluntary blood donors were investigated and analyzed .Results Six-year total positive rates of HBsAg ,anti-HCV and anti-TP were 1 .24% ,0 .55% and 0 .48% ,respectively .Positive rates of HBsAg ,anti-HCV and anti-TP were going downward year after year ,in recent three years especially .Conclusion The initial effects of establishing a safe and fixed voluntary blood donor group have been shown .

Pit cells (PCs) are hepatic natural killer cells(HNKCs), and play an important role in resisting tumor, resisting virus, regulating hepatocyte growth and differentiation, inhibiting liver fibrosis and so on. In the paper, research progress in liver pit cells is briefly summarized.

Objective To study the CT characteristics of inflammatory pseudotumor of the liver(IPL).Methods 16-slice spiral CT findings of IPL in 16 cases were analysed retrospectively.The CT values of IPLs and the liver tissue surrounding the lesions were measured on plain and contrast-enhanced CT scans.Results Totally 18 lesions in 16 cases were detected by CT,most of them(16 lesions) located in the right lobes of liver.The lesions appeared as low-density,round or round-like,or irregularity in sharp.Dynamic enhanced CT scan showed the lesions no or slight enhancement in arterial phase,slight to moderate enhancement in portal vein phase.A part of the lesions showed ring enhancement surrounding the lesions,nodular or fiber stripped enhancement in the center of lesions,and the branches of the portal vein passesed through the lesions.In enhanced degree of the lesions,there was not statistical difference in arterial phase compared with plain CT scans,but there were statistical differences in portal-venous phase compared with plain scan and arterial phase.In the liver around the lesion,the enhanced degree had statistical difference in artery phase and portal-vein phase compared with plain CT scans.Conclusion Dynamic enhanced CT scan shows that IPL is of hypovascularity,it's of characteristic in the portal-venous phase and delayed phase.

Flail chest is the common chest trauma, which causes abnormal respiration and mediastinal swing affecting the respiratory and circulatory function after injury. Fixation of ribs of flail chest has been used for half a century, methods and equipment of which varied, and domestic and foreign scholars have verified its efficacy in clinical practice. This article summarizes its main great progresses.

Anthracyclines ; pharmacology ; therapeutic use ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Breast Neoplasms ; drug therapy ; metabolism ; Cisplatin ; administration & dosage ; Deoxycytidine ; administration & dosage ; analogs & derivatives ; Drug Resistance, Neoplasm ; Female ; Humans ; Taxoids ; administration & dosage ; Vinblastine ; administration & dosage ; analogs & derivatives

Objective To summarize our experience in the diagnosis and treatment of right hemicolon carcinoma combined with acute appendicitis.Methods A respective analysis of clinical data of 51 cases of right colon cancer complicated with acute appendicitis and confirmed by surgical operation and pathology was made.Results In 2400 cases of right colon cancer,51 cases(2.1%)complicated with appendicitis.There were medical complications in 39 cases(76.5%).The diagnosis before operation was made in 13 cases(25.5%),and diagnosis of colon cancer was missed in 38 cases(74.5%).Colon adenocarcinoma was found in 40 cases,mucous adenocarcinoma 7 cases(13.7%),undifferentiated carcinoma 4 cases(7.8%);and Dukes B,C,D stages were in 2 cases(3.9%),29 cases(56.9%)and 20 cases(39.2%)respectively.The simple appendicitis,suppurative appendicitis,gangrenous appendicitis and phlegnomous appendicitis was found in 28 cases(54.9%),11 cases(21.6%),8 cases(15.7%)and 4 cases(7.8%)respectively.3-5-year survival was 95.2%,40.0%,respectively.Conclusions Occurrence rate of right colon cancer combined with appendicitis is low,but misdiagnosis rate is high,and 5-year survival rate is low.Middle and old age patients with appendicitis and accompanied with emaciation,anemia,digestive symptoms and right lower abdominal mass should have appropriate examination to avoid missing the diagnosis of right colon cancer.

This article sorts out and analyzes acupuncture-moxibustion items inTreatise on Cold Damage DiseasesandSynopsis of Prescriptions of the Golden Chamberand proposes regularities in application of and the characteristic ofZhangZhong-jing’s acupuncture and moxibustion. Acupuncture was often used for unblocking and regulating meridional qi and clearing and purging excessive heat. Moxibustion was often used for warming yang and remedying deficiency or dispersing and unblocking yang qi. Because of convenient operation, acupuncture-moxibustion therapy was often used to treatdangerous and serious diseases. Acupuncture and moxibustion were often combined with herbal prescriptions and other therapeutic methods to improve therapeutic effects, especially on difficult and complicated diseases.ZhangZhong-jing’s guiding thought ofacupuncture-moxibustion treatment first advocates treatment of diseases from the root and meanwhile, pays attention to treatment of both symptoms and causes of diseases. Secondarily, it emphasizes acupuncture-moxibustion treatment based on syndrome differentiation and especially values pulse condition, meridians and acupuncture points. It has abundant contents in treating the same disease with different methods and often selects specific acupoints. Thirdly, it favours preventive treatment of diseases, andwhether prevention of diseases before they arise or prevention of diseases from exacerbating was embodied in his acupuncture-moxibustion treatment.

Antihistamines,a group of drugs most commonly used for the treatment of allergic diseases in dermatology,exert favorable efficacy and are well tolerated in most people.Due to their wide application,the safety of medication is particularly important.When they are used in some special populations with allergic diseases,such as children,pregnant and lactating women,the elderly and people with hepatic or renal insufficiency,their pharmacodynamics,metabolic characteristics and interactions with other drugs should be fully considered,and profits of medication and potential adverse effects should be well weighed before choosing relatively safe antihistamines.In addition,decreasing the routine dose or prolonging intervals between the administration of antihistamines may also be attempted to achieve maximum safety.