1.Research progress of proanthocyanidins in ophthalmic applications
International Eye Science 2014;(11):1987-1990
Proanthocyanidins is an effective antioxidants and free radical scavenger derived from kinds of plants in nature. It has some advantages that high absorptivity and bioactivity, low toxicity, which contain broad pharmacological functions such as dropping high blood pressure, reducing blood fat, anti-inflammatory, anti-cancer, anti - aging, anti - fatigue and preventing cardiovascular and cerebrovascular diseases. In this paper, we summarized its physicochemical properties, pharmacologic action and the ophthalmological studies which mainly in keratopathy, cataract, glaucoma, uveitis, retinopathy, traumatic optic neuropathy and asthenopia. With the deeper research and more unequivocal in the pharmacological mechanism of proanthocyanidins, it should make the most of its values in medicine. And some more economical and effective drugs are expected to be provided for the clinical ophthalmology in the near future.
2.Prevalence of Helicobacter Pylori Infection among Patients Attending Gastroenterology Endoscopy Unit at Serdang Hospital
Chieng Jin Yu ; Pan Yan ; Loong Yik Yee
Malaysian Journal of Medicine and Health Sciences 2015;11(1):11-17
To study the prevalence of Helicobacter Pylori (H. pylori) infection, according to ethnicity, gender and
endoscopic findings among the patients underwent the oesophago-gastro-duodenoscopes (OGDS) at
gastroenterology endoscopy unit, Hospital Serdang, Selangor, Malaysia. The database of all whom
underwent OGDS at the gastroenterology endoscopy unit, Hospital Serdang from 1st August 2010
to 31st July 2012 was collected and assessed, retrospectively. A total of 924 patients who underwent
OGDS were analyzed for the H. pylori infection by using Campylobacter-like organism (CLO) test. 130
(14.07%) tested positive, and their data were further studied according to gender, ethnicity, age group,
initial indication for OGDS and endoscopic finding. The prevalence rate among males was 15.15%
(70/462), while it was 12.99% (60/462) among females. In terms of ethnics, H. pylori infection was
commonly found among Indian and Chinese with prevalence rate of 25.13% (50/199) and 17.41%
(51/293) respectively. These figures are significantly higher than the 6.01% (25/416) for Malays. The
age group (31-50 years old) had the highest prevalence rate of H. Pylori infection, which is of 18.55%
(41/221). No significant difference was observed among initial indications for OGDS. Erosions were the
commonest finding in H. pylori positive group with rate of 51.54% (67/130). However, erosions were
not uncommon in H. pylori negative group as well with the rate of 48.61% (386/794). H. pylori infection
rate among Malaysians was generally low, with the highest rate in Indians, followed by Chinese and
relatively low in Malays. No significant difference between the prevalence rate of H. pylori infection
in male and that in female was found. Erosions were equally common in either H. pylori positive or H.
pylori negative group.
.
Helicobacter pylori
3.New Genotypes for Aminoglycoside-modifying Enzymes in Escherichia coli
Lianhua YU ; Chunqin PAN ; Dakang HU ; Chibo LIU ; Jin ZHANG
Chinese Journal of Nosocomiology 2006;0(06):-
OBJECTIVE To study the prevalence of aac(6′)-Ⅰb with its subtypes,one kind of gene for aminoglycoside-modifying enzymes in Escherichia coli.METHODS DNA sequences were analyzed in those strains with aac(6′)-Ⅰb,compared to its family marked in NCBI.Thus,its subtypes were determined.RESULTS Four strains were classical on genotype,the other one with aac(6′)-Ⅰb-Cr,and the last one with a new subtype among the 6 strains of E.coli with aac(6′)-Ⅰb.CONCLUSIONS There exist at least 3 subtypes of aac(6′)-Ⅰb,one kind of gene for aminoglycoside-modifying enzymes in local strains of E.coli.Among those subtypes,the classical type is the main,accompanied by aac(6′)-Ⅰb-Cr and its new subtype.
4.Improving the students,ability of science research in teaching of physiology
Xiaohong LIU ; Huan JIN ; Deqian YU ; Yuanshou CHEN ; Guishu PAN
Chinese Journal of Medical Education Research 2005;0(06):-
In theory teaching,we let students know the knowledge of some important discovery and invention in the history of physiology and while in experiment teaching,we added the experiments designed by students in addition to traditional experiments,so as to enhance the students,ability of innovation.
5.Analysis on distribution characteristics and risk factors of extended stay at tertiary comprehensive hospitals
Wenhan YU ; Hongbing TAO ; Jinlu HE ; Li JIN ; Pan ZHANG
Chinese Journal of Hospital Administration 2017;33(7):515-518
Objective To analyze the distribution characteristics and risk factors of extended stay over 30 days at tertiary comprehensive hospitals, and explore methods of shortening average length of stay(LOS).Methods Homepage of all inpatients discharged from October 2014 to October 2015 of 31 tertiary comprehensive hospitals in Shanxi province were collected.39 234 cases of these inpatients stayed over 30 days and their case information was complete.A generalized linear model was used for risk factors analysis.Results With the extension of LOS, most of the inpatients with extended stay were found during their 30th-40th days, accounting for 50.21% of all and constituting the highest daily costs as well.The ratio of inpatients decreases with their LOS, and its distribution presents a positive skew in entirety.Distribution of inpatients over 30 days identified urban employees under medical insurance accounting for the highest ratio among all payment categories,and those from the department of orthopedics for the highest ratio among all departments, while those of diseases from injury and poisoning accounting for the highest ratio among all disease categories.The findings indicated ten important factors for extended stay, namely gender, medical payment category, ICD, inter-department transfer, nosocomial infection, and clinical pathway.Conclusions To strengthen management of specific departments and inpatients, focus on key process of medical quality, and accelerate medical insurance payment reform can effectively control extended stay.
6.The value of fasting plasma glucose combined with HbA_1c in diagnosing diabetes in patients with coronary heart diseases
Hao LIU ; Jin-Ming YU ; Fang CHEN ; Chang-Yu PAN ; Jue LI ; Da-Yi HU ;
Chinese Journal of Endocrinology and Metabolism 1986;0(04):-
The validity of fasting plasma glucose(FPG)combined with HbA_1c in diagnosing diabetes was assessed in patients with coronary heart disease.The results showed that the paired determination of FPG and HbA_1c helped to identify potentially diabetic subjects in patients with coronary heart disease.
7.Effect of Estrogen Replacement on Vascular Responsiveness in Ovariectomized Spontaneously Hypertensive Rat.
Bonggwan SEO ; Dong Ju CHOI ; Jin Yong HWANG ; Il Seok CHEON ; Yu Pan LEE
Korean Circulation Journal 2000;30(4):528-528
BACKGROUND: Although postmenopausal estrogen replacement therapy is known to reduce cardiovascular mortality, the mechanism is not clear yet. Furthermore, the effect of estrogen on vascular tonus is reportedly variable according to the animal models, vascular beds and agonists used. MATERIALS AND METHOD: Bilateral ovariectomies were performed in 12 week-old, 18 spontaneously hypertensive rats (SHR) and 18 normotensive Wistar-Kyoto rats (WKY). Rats were divided into three groups according to the dose of 17beta-estradiol (E 2 ) pellets implanted subcutaneously two weeks after ovariectomy: control (no implantation), low-dose (0.5 mg) and high-dose (5 mg) E 2 replacement group. Two weeks after pellet implantation, organ bath experiments were performed using descending thoracic aortae. For endothelium-dependent relaxation, acetylcholine (10(-9) -3x10(-6) M) was cumulatively added into the vessels precontracted with 10(-7) M norepinephrine (NE). For vasoconstrictor responses, cumulative concentration-contraction curves were constructed in quiescent vessels using NE (10(-9) -10(-5) M), U46619 (10(-9) -3x10(-6) M), endothelin-1 (10(-10) -10(-7) M). In addition, contraction to angiotensin II (10(-7) M) was also obtained. Serum 17beta-estradiol levels were measured by radioimmunoassay. Blood pressure was measured by tail-cuff method in some SHRs before ovariectomy and after placebo/E 2 replacement. RESULTS: Endothelium-dependent relaxation to acetylcholine was impaired in WKY treated with 5 mg E 2 (pIC 50 : control vs 5mg E 2 : 7.75+/-0.13 vs 7.27+/-0.16: n=6: p<0.05). No significant effect was noted in SHR. Contraction to angiotensin II was inhibited by low-dose E 2 in WKY and high-dose E 2 in SHR (% of the contraction to 60 mM KCl: WKY: control vs 0.5 mg E 2 : 39+/-5 vs 25+/-2: SHR: control vs 5 mg E 2 : 34+/-4 vs 22+/-2: n=6 and p<0.05 in WKY and SHR). In contrast, NE-induced contraction was enhanced by E 2 replacement (both low- and high-dose) in WKY and SHR (WKY: control vs 0.5 mg E 2 vs 5 mg E 2 : AUC: 280+/-24 vs 387+/-26 vs 374+/-25: maximal contraction: 137+/-8 vs 166+/-8 vs 162+/-3: pD 2 : 7.63+/-0.11 vs 8.17+/-0.13 vs 8.13+/-0.13: SHR: control vs 0.5 mg E 2 vs 5 mg E 2 : AUC: 265+/-17 vs 349+/-16 vs 406+/-19: maximal contraction: 152+/-6 vs 181+/-9 vs 203+/-16: pD 2 : 7.45+/-0.13 vs 7.91+/-0.08 vs 8.04+/-0.04: n=6 and p<0.05 between control and treated groups in WKY and SHR for all parameters). Contraction to U46619 was enhanced by E 2 replacement in SHR (control vs 0.5 mg E 2 : AUC: 478+/-30 vs 574+/-23: maximal contraction: 181+/-9 vs 230+/-10: n=6: p<0.05 for both parameters). Maximal contractile response to endothelin-1 was also enhanced in SHR (control vs 0.5 mg E 2 vs 5 mg E 2 : maximal contraction: 165+/-7 vs 189+/-7 vs 199+/-8: n=6 and p<0.05 between control and treated groups) but not in WKY. Blood pressure was not different between placebo and E 2- treated SHR (171+/-2 vs 174+/-4 mmHg). CONCLUSION: In WKY, chronic high-dose estrogen replacement impairs endothelium-dependent relaxation to acetylcholine.: low-dose estrogen replacement does not affect endothelium-dependent relaxation in SHR and WKY. Estrogen replacement enhances the contraction to most of the contractile agonists tested except angiotensin II in both WKY and SHR. These results suggest that estrogen replacement affect the vascular tonus differently according to the vasoactive substances and/or hormones without significant effect on blood pressure.
15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid
;
Acetylcholine
;
Angiotensin II
;
Animals
;
Aorta, Thoracic
;
Area Under Curve
;
Baths
;
Blood Pressure
;
Endothelin-1
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Estrogen Replacement Therapy*
;
Estrogens*
;
Female
;
Models, Animal
;
Mortality
;
Norepinephrine
;
Ovariectomy
;
Radioimmunoassay
;
Rats
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Rats, Inbred SHR*
;
Relaxation
8.Placement of a Long Intestinal Tube in Patients with Early Postoperative Small Bowel Obstruction under Fluoroscopic Guidance.
Zhi-wei WANG ; Xiao-guang LI ; Jie PAN ; Ning YANG ; Hai-feng SHI ; Zheng-yu JIN
Chinese Medical Sciences Journal 2015;30(3):156-161
OBJECTIVETo investigate the placement of a long tube into the small intestine under fluoroscopic guidance and to evaluate its decompression effect on early postoperative small bowel obstruction (EPSBO).
METHODSFifty-four patients with EPSBO requiring decompression between April 2010 and July 2014 were enrolled in the study. Insertion of a long tube was guided by fluoroscopy. We first used the guide wire to pass the pylorus and then used the 10 Fr feeding tube as an exchangeable tube to put the superstiff wire into the duodenum. Finally the long tube could be passed over the guide wire through the pylorus into the intestine. The total procedure time, the radiation exposure time, and the incidence of complications were evaluated.
RESULTSThe long tubes passed into the jejunum on initial insertion for all patients, so the success rate of this technique was 100%. The long tube was inserted into ileum in 18 patients. The mean total procedure time was 34.4 ± 8.6 minutes, and the mean radiation exposure time 18.9 ± 6.8 minutes. A total of 47 patients (87%) experienced full recovery following long-tube decompression and without the need for surgical intervention.
CONCLUSIONSUsing the wire-exchange technique, it is easy to place a long tube into the small bowel under fluoroscopic guidance. This decompression method is safe and effective for management of EPSBO.
Adult ; Aged ; Decompression, Surgical ; methods ; Female ; Fluoroscopy ; Humans ; Intestinal Obstruction ; surgery ; Male ; Middle Aged ; Postoperative Complications ; surgery ; Retrospective Studies
10.Evaluation of dynamic morphology of atrial septal defect by real-time three-dimensional transesophageal echocardiography
Huihong JIN ; Bowen ZHAO ; Chan YU ; Bei WANG ; Peng LI ; Mei PAN ; Lilong XU
Chinese Journal of Ultrasonography 2011;20(2):93-96
Objective To determine whether real-time three-dimensional transesophageal echocardiography(RT-3D TEE) is an accurate non-invasive technique for defining the morphology of atrial septal defects(ASD). Methods In 20 patients with secundum ASD, mean age 42.2 years (7 male, 13 female) ,live three dimensional surgical views of ASD were acquired,qualitative morphology of ASD such as the shape, presence of fenestrations and the defect margins were noted during the cardiac cycle. The measurements obtained from 2-dimensional transesophageal echocardiography(2D-TEE) and RT-3D TEE were compared to those obtained from stretched balloon diameter(SBD) or surgery. Measurements of the size and area change of ASD were validated during the cardiac cycle by RT-3D TEE,stepwise multiple linear regression analysis was performed to test the correlation between the maximum change ratios of area and diameter of ASD and age, atrial septal length, ASD shunting velocity, the maximum diameter of ASD and right ventricular systolic pressure. Results ① The morphology of ASD was circle-like or elliptical in systole,irregular or elliptical in diastole. ②The area and diameter of ASD measured by RT-3D TEE was minimal in isovolumetric contraction phase, maximal in isovolumetric diastole phase. The correlation coefficient of maximum diameter measured by 3D with SBD was 0.962 , greater than that by 2D and SBD (0.820). ③The change ratio of area and maximum diameter of ASD acquired by RT-3D-TEE was 11.48%-71.12% and 2.80%-43.87% respectively,and the correlation coefficient of them was 0.921. Conclusions RT-3D TEE using live 3D-Zoom mode accurately displayed the varying morphology,dimensions and spatial relations of ASD. RT-3D TEE can offer visualization morphological changing of ASD in different periods of cardiac cycle,providing more information for percutanous catheter intervention and open heart surgery.