1.Ocular manifestations of acquired immunodeficiency syndrome
Chinese Journal of Ocular Fundus Diseases 2010;26(5):423-426
Objective To observe ocular manifestations of acquired immunodeficiency syndrome (AIDS). Methods Fourty-two AIDS patients (66 eyes)with ocular complaints received examinations of visual acuity, slit-lamp microscope, ophthalmoscope and fundus fluorescence angiography (FFA). The results were retrospectively analyzed. ResultsThere are five types of ocular findings, including cytomegalovirus (CMV) retinitis (37 eyes, 56.0%), retinal microvasculopathy of human immunodeficiency virus (21 eyes, 32.0% ), optic nerve diseases (three eyes, 4.5 % ), retinal neuroepithelial layer detachment (two eyes, 3.0%) and uveitis (three eyes, 4.5%). Conclusions The common ocular manifestations showed progressive necrotic retinitis, retinal hemorrhage and retinal vasculitis and attenuated, cotton-wool spots in AIDS patients.
2.Roles of autophagy in cardiovascular diseases:research progression
Chinese Journal of Geriatrics 2017;36(5):589-593
The morbidity and mortality of cardiovascular diseases(CVD)are still high in our country,they severely threaten peopleS health and quality of life.A dysregulated or reduced autophagy is associated with ischemic heart disease,cardiac hypertrophy,heart failure and arrhythmia.Autophagy is a key regulator in CVD development,and is essential for maintenance of heart function and improvement of prognosis.Thus,modulating autophagy represents an attractive future therapeutic target for treating cardiovascular disease.This article reviewed the research progression about effects of autophagy on ischemic heart disease,cardiac hypertrophy,heart failure and arrhythmia.
3.Drug-induced Hepatic Lesions:Clinical Analysis of 170 Cases
China Pharmacy 1991;0(02):-
OBJECTIVE:To discuss the clinical features and the general pattern of drug-induced hepatic lesions.METHO-DS:The clinical data of 170 drug-induced hepatic lesion cases collected from Jan.2002 to Apr.2006 in our hospital were analyzed retrospectively.RESULTS:Of the 170 cases,35.29% were induced by Chinese herbal medicines,13.53% by antipsychotic drugs,12.94% by anti-tuberculosis agent;51.18% were hepatocellular damage type,14.12% cholestatic damage type and 34.71% damage of mixed type damage.CONCLUSION:Hepatic lesions resemble viral hepatitis and were of no specificity in clinical features;various drugs can lead to hepatic lesions and to which clinic should attach great importance.
4.The influence of different dosages of atorvastatin in acute coronary syndrome female patients on vascular endothelial growth factor and brain natriuretic peptide
Chinese Journal of Primary Medicine and Pharmacy 2013;20(2):244-246
Objective To study the influence of different dosages of atorvastatin in acute coronary syndrome female patients on vascular endothelial growth factor(VEGF) and brain natriuretic peptide(BNP).Methods 60 female cases of ACS patients were divided into A and B group.30 patients in the A group were given atorvastatin 20mg per night,while the other 30 patients in the B group were taken 40mg per night.The patients were followed four weeks by evaluating serum VEGF and BNP concentration.Results After treatment for four weeks,the patients in the two groups showed significant reduction in VEGF and BNP,however,the therapeutic group showed significant difference between the two groups.Additionally,the B group further showed significant reduction in VEGF and BNP.Conclusion Using high-dose atorvastatin lowers VEGF and BNP significantly,which could reduce female cardiovascμlar events.
5.Nosocomial Infection in Patients: Control Measures
Guangqing DU ; Fang LIU ; Ling DU
Chinese Journal of Nosocomiology 2006;0(12):-
OBJECTIVE To give a general introduction to the infection in the hospital,and supervision to key departments in order to prevent nosocomial infection occurrence. METHODS A vertical analysis was made on the basis of the survey involving the following three periods: the first period covered the second half of the year 2000(from Jul to Dec 2000),the second period covered the second half of the year 2002(from Jul to Dec 2002),and the third period covered the second half of the year 2004(from Jul to Dec 2004). RESULTS The periodical supervision and the vertical analysis in the same period showed the following: the rates of the infected patients in the departments showing a tend to go on rising from 2000 to 2002,and showing a tend to decline from 2002 to 2004. CONCLUSIONS The control of using antibiotics must be emphasized and they should be applied in a scientific and reasonable way.The key points include the management of purchasing drugs,clinical indications and usages,supervise and news feedback,etc.All of these measures could prevent the occurrence of nosocomial infection effectively.
6.Qualitative and quantitative analysis of acupuncture on cerebral microcirculation perfusion state in rats with cerebral infarction
Ling GUAN ; Xian SHI ; Yuanhao DU
Chinese Journal of Tissue Engineering Research 2005;9(29):238-240
BACKGROUND: Direct observation of infarcted microvaseular perfusion after cerebral infarction is the most immediate evidence in evaluation of therapeutic effects.OBJECTIVE: To observe dynamic changes in flowing quality and field in cerebral ischemic area in rats so as to qualitatively and quantitatively analyze the microvascular state in pia matral encephali ischemic area and the changes of associated leukocytic flowing velocity and flowing morphology.DESIGN: Randomized controlled experiment was designed.SETTING: Department of Acupuncture and Moxibustion of General Hospital Chinese PLA.MATERIALS: The experiment was performed in Research Room of Microcirculation of General Hospital Chinese PLA, in which, 120 female Wis tar rats of 2-month old were employed and randomized into acupuncture group (36 rats), model group (36 rats), sham-operation group (36 rats) and normal group (12 rats). The first 3 groups were subdivided in 3 hours, 6hours and 24 hours groups according to the prescriptive time divisions, 12rats in each group.METHODS: In acupuncture and model groups, after abdominal anesthesia with pentobarbital sodium, the cranium was opened and the occlusion of meddle cerebral artery was performed in cerebrum with heat-coagulation method. In sham-operation group, anesthesia and cranium opening were performed, but the meddle cerebral artery was not occluded. In normal group, no any management was performed. In acupuncture group, 60 minutes after occlusion of meddle cerebral artery in cerebrum, needling was given on Renzhong (GV 26) and Neiguan (PC 6) with electric stimulation of disperse-dense wave, 4-10 Hz frequency and 0.4 V of intensity, lasting for 5 minutes. Afterwards, pecking-acupuncture technique was done on Renzhong (GV 26) to achieve strong stimulation for 10 seconds. In shamoperation and model groups, the rats were in process of grasping and fixation, but acupuncture was not applied. Vascular endotheliocyte fluorescence staining and leukocyte fluorescence tracing method were applied, in combination with microscopic video system and computer imaging analyzing system, to observe in dynamic and quantitatively the influences of acupuncture on pia matral encephali microvascular morphology, density and blood flowing velocity at 3 hours, 6 hours and 24 hours after cerebral occlusion of meddle cerebral artery.morphology, density and blood flowing state at various time divisions observed directly microscopically and vascular endotheliocyte morphology and the state of brain tissue which near the microvascular after infusion with velocity in infarcted area at various time divisions measured in quantity in each group.microvascular endotheliocytes were colored worse and more fluorescent exudation appeared. Those were better remarkably in acupuncture group ty: That in model group was lower than normal group. That at 3 hours, 6hours and 24 hours in acupuncture group was higher remarkably than model group [(6.92±0.42), (3.25±0.52) pces/visual field; (7.61 ±0.51),(3.68±0.32) pces/visual field; (8.24±0.72), (5.49±1.2) pces/visual leukocyte velocity: That in model group was lower remarkably in normal group. That at 3 hours, 6 hours and 24 hours in acupuncture group was higher remarkably than model group [(1 193±358), (600±261) μm/s;(1 112±267), (517±115) μm/s, (1 766±293), (611±291) μm/s, q=4.608.28, P < 0.01].CONCLUSION: At early stage of cerebral infarction, broken blood flow is severe in artery, vein and capillary in ischemic area; the numbers of opened vessels are few, flow rate is slow down and cerebral perfusion is unsatisfactory. Acupuncture amaliorate the microcirculation perfusion state in ischemic area, increases the numbers of opened vessels and improves flowing morphology of blood cell.
7.Compartive study on cerebral vessels stenosis in acute cerebral infarction patients with or without diabetes mellitus
Guojun LUO ; Ling DU ; Yunfu WANG
Journal of Clinical Neurology 1995;0(04):-
Objective To compare the cerebral vessels stenosis in acute cerebral infarction patients with or without diabetes mellitus.Methods Using case-control study,51 acute cerebral infarction patients with diabetes mellitus and 64 patients without diabetes mellitus were checked by digital subtraction angiography(DSA).The condition of stenosis and obstruct of vessels in intracranial and extracranial were compared.Results Stenosis of intracranial arteries was frequent in both two groups.The main involved arteries included M1 and M2 segments of middle cerebral artery and external cranial segment of internal carotid artery.The rate of cerebrolvascular abnormality in the patients with diabetes mellitus(84.31%) was higher than that in the patients without diabetes mellitus(70.31%).Stenosis of multiple arteries(52.94%),arteriostenosis combined with ulcer or plaque(39.21%) and collateral circulation development(11.63%) were found in diabetic patients,while the rates were 18.75%,17.19% and 31.11%,repectively,in non-diabetic patients.These differences between two groups were statistical significances(all P
8.Preparation of sinomenine hydrochloride?-carrageenan/konjac glucomannan matrix tablets and study on its in vitro release mechanism
Yu ZHANG ; Ling WANG ; Caiwei DU
Chinese Traditional and Herbal Drugs 1994;0(11):-
Objective To study the formulation and preparation factors influencing in vitro release mechanism of drug from?-carrageenan/konjac glucomannan hydrophilic matrix tablets.Methods The matrix tablets containing sinomenine hydrochloride as a model drug were obtained by direct compression method or wet granulation technique.The effects of the ratios of?-carrageenan/konjac glucomannan,the amount of matrix materials,the kinds of diluent agent,tablet size,preparation method,and compressing pressure on release mechanism of the matrix tablets were studied by evaluating the n value in the Peppas equation. Results The release mechanism of the matrix tablets was non-Fickian release that coupled diffusion and erosion modle.With a decrease in the ratio of?-carrageenan/konjac glucomannan,a decrease in the amount of matrix materials,a decrease in the water-solubility of diluent agents,an increase in tablet size,and a decrease in compressing pressure,the ratio of drug diffusion was increased.Preparation method had little influence on drug release mechanism.Conclusion Drug could be slowly released from the matrix tablets containing?-carrageenan/konjac glucomannan as matrix material,the main factors influencing drug release mechanism are the ratio of?-carrageenan/konjac glucomannan,the amount of matrix materials, the kinds of diluent agent,tablet size,and compressing pressure.
9.Studies on in vitro release characteristics of drug from ?-carrageenan/konjac glucomannan matrix tablet
Yu ZHANG ; Caiwei DU ; Ling WANG
Chinese Traditional Patent Medicine 1992;0(05):-
AIM: The drug release characteristics of ?-carrageenan/konjac glucomannan matrix tablet were elvated by in vitro dissolution experiment. METHODS: Sinomenine hydrochloride was used as model drug,the matrix tablet containing ?-carrageenan and konjac glucomannan as matrix material were prepared by wet granulation technique. Drug release and tablet erosion in different pH values,ionic strength of media and rotation speeds were studied by in vitro dissolution experiment. The data of drug release and matrix tablet erosion were confirmed in Peppas and zero order equation,respectively. RESULTS: Among the rate of drug release in different media,0. 1 mol/L HCl was the fastest,distilled water was the second,pH6. 8 PBS was the slowest. The rate of drug release decreased with increasing the ionic strength of media(P 0. 1). The rate of drug release increased with increasing the rotation speeds(P
10.Etiology and management of vascular compromise of free flap transplantation:a report with 305 cases
Zhiyong REN ; Ling DU ; Xianfeng HUANG
Medical Journal of Chinese People's Liberation Army 2001;0(10):-
Objective To investigate the causer of, and the way to deal with the measurement of protecting from vascular compromise in free flap transplantation. Methods To retrospectively study the clinical data collected from the 89th Hospital of PLA including 305 cases of vascular compromise in free flap transplantation held on June, 1983 to December, 2006. Accoding to the different tissue flaps and different sites to be repaired, 11 factors of vascular compromise of free flap transplantation were to be investigated including operation design, the recipe of free flap, the variation of vascellum, the skill of recipe, the operation opportunity, the match of vascellum, the debride of vascellum, the vascellum angiotasis, the vascular anastomosis, the management of vascular articulo and the infection. Results Among the 305 cases of free flap transplantation, arterial compromise existed in 270 cases, 10 cases developed arterial compromise during operation, 6 cases were due to the injury of nutrient vessel, the flap survived after the revascularization. 4 cases obtained part necrosis of 10 cases, and the rotation flap and skingrafting covered the raw surface. The rest 213 cases survived and 47 cased failed. Another 35 cases of vein compromise were obtained. Among them, 5 cases survived, part necrosis of 10 cases, and 20 cases failed. Conclusion Vascular compromise is the factor of necrosis in free flap transplantation. It is of cardinal importance to timely and correctly treat the vascular compromise in free flap transplantation whether happened intra-or postoperatively. This is the key to access high successful rate. Preventive measures are even more beneficial than proper management after its occurrence. The venous return disorder was the main factor of free flap transplantation failure.