1.Influence of Temperature and Perfusate Modifier on In-vitro Mass Transfer Coefficient of Microdialysis with Sinomenine as a Model Drug
Journal of Guangzhou University of Traditional Chinese Medicine 2000;0(04):-
【Objective】To observe the influence of temperature and perfusate modifier on in-vitro mass transfer coefficient of microdialysis with sinomenine as a model drug.【Methods】The in-vitro relative recovery(RR) was assayed by HPLC at different temperatures and in perfusate including different concentrations of alcohol,and then the mass transfer coefficient was calculated.【Results】In-vitro RR increased with the temperature and the concentrations of alcohol,so did the mass transfer coefficient.【Conclusion】Temperature and alcohol at different concentrations have an effect on RR and mass transfer coefficient of microdialysis with sinomenine as a model drug.
2.The transdermal absorption data' GM(1,1) fitting of sinomenine liposome patch and comparison with related model
Chinese Traditional Patent Medicine 1992;0(01):-
AIM: The transdermal absorption data of sinomenine patch was fitted by grey model GM(1,1) and compared with other models. METHODS: The transdermal absorption experiment was carried out with Franz diffusion cell and the GM(1,1) was established by accumulation generation operator (AGO). RESULTS: The fitting precision was compared by using mean relative error and grey absolute correlation degree as evaluation criterion. CONCLUSION: The fitting precision of GM(1,1) is as high as acceptable.
3.Impact of rat skin stratum corneum on transdermal absorption characteristic of Sinomenine Liposome Patch
Yingfeng ZHANG ; Xiaogen WANG ; Liling ZHOU
Chinese Traditional and Herbal Drugs 1994;0(09):-
Objective To study the effect of skin stratum corneum on transdermal absorption characteristic of Sinomenine Liposome Patch. Methods The normal and stripped stratum corneum skin of back and abdomen was used to study the transdermal absorption characteristic by Franz method. The transdermal absorption sample was taken at the preset sampling time point. The sample content was determined by HPLC. The cumulative transdermal amount of per unit area was fitted with sampling time point, the transdermal rate constant (J value) was selected as comparative standard. Results The transdermal rate constant (J) of skin with stratum corneum stripped increased obviously than that of the normal skin, so was the released rate constant. Conclusion The skin stratum corneum has an notable impact on transdermal absorption characteristic of Sinomenine Liposome Patch. When the skin of experimental animal being prepared, the integrality should be paid more attention.
4.Counteractive Mechanism of Cyclovirobuxinum D for Myocardial Ischemia Induced by Pituitrin
Jiuyao ZHOU ; Rui LI ; Xuezhen LIAO ; Yingfeng ZHANG
Journal of Guangzhou University of Traditional Chinese Medicine 2004;0(06):-
[Objective] To observe the counteractive action of cyclovirobuxinum D (Cvb-D) for myocardial ischemia and to explore its possible mechanism. [Methods] Sixty SD rats were randomized into blank control group, Cvb-D groups in the dosage of 2.2, 1.1 and 0.55 mg? kg-1 ? d-1 respectively, isosorbide dinitrate group (25 mg? kg-1 ?d-1). The blank control group was treated with distilled water and the other groups were treated with the corresponding drugs by gavage according to the experimental design for 30 days. One hour after the last medication, pituitrin (1.5 U/kg) was injected into the caudal vein of the rats except the blank control to induce coronary artery spasticity myocardial ischemia. After that, electrocardiogram (ECG) was recorded, plasma superoxide dismutase (SOD) activity, malonyldialdehyde (MDA), lactate dehydrogenase (LDH) and phosphocreatine kinase ( CPK) levels were detected. [ Results ] The incidence of ischemic changes in ECG was decreased, plasma SOD activity increased and MDA, LDH and CPK levels lowered in Cvb-D groups as compared with those in the model group (P
5.Development of reproductive tract infections related health belief scale for fertile woman
Yan WU ; Liqun CHEN ; Yingfeng ZHOU ; Minmin LU
Chinese Journal of Practical Nursing 2011;27(7):56-59
Objective To develop a suitable instrument for measuring health beliefs related to reproductive tract infections (RTIs) and testing its reliability and validity. Methods Within the framework of the Health Belief Model, 500 questionnaires of health beliefs related to RTIs were collected, its reliability and validity was analyzed. Results The instrument contained two subscales, all content validity index(CVI)were 1.0. RTIs-related health belief subscale extracted four factors, the cumulative variance was 75.91%;RTIs-related self-efficacy subscale extracted four factors,the cumulative variance was 68.19%. Scale statistics consisted with the structure and design structure. The dimensions Cronbach's α coefficient, test-retest reliability, split half reliability were greater than 0.70. Conclusions This scale has good reliability and validity and can be used for measuring health beliefs related to reproductive tract infections in women of childbearing age.
6.Influence of hyperthermo-radiotherapy on T helper subgroup for patients with esophageal carcinoma
Mei HONG ; Zao JIANG ; Yan NIE ; Yingfeng ZHOU
Chinese Journal of Radiological Medicine and Protection 2009;29(1):39-40
Objective To evaluate the influence of hyperthermia on T helper subgroup (T help type1/T help type2,Th1/Th2) for patients with esophageal carcinoma. Methods 22 patients of esophageal carcinoma were randomly divided into two groups. Both group patients were treated by external radiation, the total dose was 64-66 Gy/30-33 fractions. Radiotherapy was the only therapy method in group A. Hypertbermia was used twice every week, with 8-10 fractions except for radiotherapy in group B. All patients were phlebetomized at the beginning and the end of radiotherapy for examining Th1/Th2 by flow cytometry. Results Th1 was significantly decreased in group A(t = 5.33, P < 0.01). All indexes in group B had no difference (t = - 1.41, P > 0.05). TheThl in group A was decreased much more than that in group B(t = 4.28, P < 0.05). Conclusion Hyperthermia could rectify the balance of Th1/Tb2.
7.Study on design of nursing occupational safety and health curriculum
Weina WU ; Huijuan LU ; Yingfeng ZHOU ; Lingzhi ZHANG ; Ye ZHAO
Chinese Journal of Practical Nursing 2009;25(34):4-7
Objective To design nursing occupational safety and health curriculum reasonably.Methods With a semi-structured interview outline,focus group interviews among eight clinical nursing and nursing education specialists were conducted to develop the occupational safety and health curriculum design.Results It was important to set up nursing occupational safety and health curriculum.The main object,contents,teaching and evaluation methods were identified.Conclusions Occupational safety and health curriculum can be involved in nursing curriculum system to reduce occupational hazards and maintain physical and mental health of nursing students.
8.Quantitative analysis of medication safety related nursing literatures in our country
Honghong YANG ; Yan HU ; Yingfeng ZHOU ; Guomei SHEN
Chinese Journal of Practical Nursing 2014;30(22):4-6
Objective To understand the current status of paediatric medication safety,identify the existing problems on nursing research of paediatric medication safety and supply reference for paediatric medication safety.Methods 268 requested research papers published from 2003 to 2013 were retrieved from CNKI and CBM databases,and were analyzed by quantitative methods.Results Among 268 literatures,60.1% were experience summaries and discussion.72.0% didn't use any analyzing methods.64.6% adopted qualitative analysis.Nine categories of these studies contents were concluded,among these,literatures dealing with medication management and medication safety education for parents came the first,accounting for 31.0% and 15.3%; while those elaborating about information technology and medication safety education of nurses were the least,accounting for 4.1% and 3.0%.Conclusions Most of the studies were qualitative comments and experience summaries which lack of rigorous designs and statistical methods.The research contents were scattered and difficult to be used in clinical environment.It is strongly recommended that studies on paediatric medication safety should be enhanced.Furthermore,nursing guideline should be constructed by evidence-based methodology to promote domestic paediatric medication safety.
9.Effect of dexmedetomidine on prognosis after cardiac surgery with cardiopulmonary bypass
Tingting NI ; Min YAN ; Lina YU ; Yingfeng PAN ; Zhenfeng ZHOU ; Qinghe ZHOU ; Kai SUN
Chinese Journal of Anesthesiology 2016;36(7):785-789
To evaluate the effect of dexmedetomidine on prognosis after cardiac surgery with cardiopulmonary bypass (CPB) in the patients.For this retrospective study,753 patients of both sexes,aged 18-84 yr,who underwent cardiac surgery with CPB from September 2013 to May 2015,were divided into 2 groups depending on whether or not dexmedetomidine was used during surgical procedures:control group (group C,n=548) and dexmedetomidine group (group D,n =205).Propensity score matching analysis with preset caliper width was used.A total of 197 matched pairs were selected from the patients.The development of postoperative arrhythmia,in-hospital mortality,pulmonary infection after operation,and acute renal injury,length of intensive care unit stay,length of hospital stay and 30-day readmission to the hospital were collected.Compared with group C,the incidence of postoperative tachyarrhythmia and inhospital mortality rate were significantly decreased (P<0.05),and no significant changes were found in the incidence of postoperative bradyarrhythmia,pulmonary infection after operation and postoperative acute renal injury,length of intensive care unit stay,length of hospital stay and rate of 30-day readmission to the hospital in group D (P>0.05).Dexmedetomidine can effectively improve prognosis after cardiac surgery with CPB in the patients.
10.Evidence summary for prevention and management of Incontinence-associated dermatitis in adult inpatients
Jiajia ZHOU ; Xiuqin FENG ; Lingyun CAI ; Yingfeng ZHOU ; Hongling SUN ; Yuping ZHANG
Chinese Journal of Practical Nursing 2021;37(12):955-961
Objective:To retrieve, appraise and synthesize the best available evidence on prevention and management of incontinence-associated dermatitis in adult inpatients.Methods:All the evidence on prevention and management of incontinence-associated dermatitis in adult inpatients was searched by computer from domestic and foreign electronic databases, guide.com and related professional websites from January 2010 to January 2020. Literature evaluation tools such as AGREEⅡ, AMSTAR were used for evaluation. Data extraction of documents that met the inclusion criteria.Results:A total of 28 pieces of relevant evidence were obtained. It includes 6 aspects: assessment and prevention, management of incontinence, cleaning, moisturizing and protection, treatment, monitoring and management.Conclusions:the 28 pieces of evidences in this study can better guide the medical staff in the prevention and management of incontinence-associated dermatitis in adult inpatients. It is suggested that the medical staff should carefully apply the evidence in combination with the specific clinical environment and the patient ′s will, and pay attention to the update of relevant evidence in time.