1.Effects of load-dose Amrinone on left ventricular function in heart failure patients evaluated by echocardiography
Dongye LI ; Meiling LIAN ; Lanfen WU
Chinese Pharmacological Bulletin 1986;0(04):-
The effects of Amrinone (AMR)on left ventricular function in 30 cases of congestive heart failure patients was assessed by M-mode and pulsed Doppler echocardiography. AMR improves the systolic and diastolic function of left ventricle during and after 10 min (AMR lmg ? kg-1, infusion ). The mean stroke volume increased 20% and 18% ; cardiac output increased 23% , 19% ; cardiac index increased 23% and 23% ; ejection fraction increased 32% , 30%; mVcf increased 50% and 48% ; filling velocity in early diastole increased 30% and 21 %; respectively. There were no significant differently between during and after AMR infusion, but there were signifcantly difference a-mong before, during and after AMR infusion. The heart rate changed slightly without statistic significance. The results suggest that AMR could improve the systolic and diastolic function of left ventricle in congestive heart failure patients.
2.Clinical study of severe complications during hysteroscopic surgeries
Hua DUAN ; Enlan XIA ; Lanfen LI
Chinese Journal of Obstetrics and Gynecology 2000;0(11):-
Objective To investigate the clinical characteristics, treatment and prevention methods of severe complications during hysteroscopic procedures Methods From January 1995 to January 2001, seventeen cases with uterine perforation, heavy bleeding and fluid overload respectively were encountered during hysteroscopic procedures This analysis focuses on their diagnosis and clinical management as well as prevention methods Results Three cases with uterine perforation and seven with uncomplete perforation followed transcerivcal resection of myoma (TCRM), transcerivcal resection of adhension, transcerivcal resection of septum and transcerivcal removal of foreign body respectively, which were diagnosied by both B ultrasonography and laparoscopy and treated laparoscopically Four cases with heavey bleeding were encountered during TCRM Foley catheter was inserted into uterine cavity to stop the bleeding successfully Three cases with fluid overload were cured by diuretic agent and saline infusion There were no serious consequence happened Conclusions It is a potential high risk factor of resulting in complications that performing complicated procedures inside uterine cavity during hysteroscopic operations Pre treatment with gonadotropin releasing a and guiding with B ultrasound/ laparoscopy as well as controlling irrigation pessure are necessary for proventing above complications
3.Clinical observation of macular epiretinal membrane
Li HUANG ; Meixia ZHANG ; Lanfen YANG
Chinese Journal of Ocular Fundus Diseases 2001;0(03):-
Objective To investigate the clinical features, etiological classification and staging of epiretinal macular membrane(MEM). Methods Clinical materials of 194 cases of MEM diagnosed by fundus fluorescein angiography in outpatient department of eye clinic in this hospital from 1983 to 2000 were retrospectively analyzed. Results There were typical clinical symptoms and signs of MEM in all of this 222 eyes of 194 patients. Etiological classification revealed that 4 cases were congenital(2.12%), 22 cases were secondary(11.34%), and 168 cases were idiopathic(86.60%). Staging of course of disease indicated that 119 eyes were in early stage(53.60%), 72 eyes were in middle stage(32.43%), and 31 eyes were in late stage(13.96%). Conclusion MEM may be classified as congenital, secondary and idiopathic type according to its pathogenesis, as early, middle and late stage according to the clinical course of disease. This can be helpful in treating the disease.
4.Study on the effect of cyclosporine combined with eleven acid testosterone on serumT helper cells in patients with chronic aplastic anemia
Wenjing LI ; Yu SUN ; Tianhua ZHAO ; Lanfen HOU ; Youjun WANG
International Journal of Laboratory Medicine 2017;38(15):2088-2090
Objective To study the effect of cyclosporine combined with eleven acid testosterone on serum T helper cells in patients with chronic aplastic anemia.Methods A total of 86 patients with chronic aplastic anemia received treatment in our hospital were collected as the research objects,and divided into experimental group and control group,patients in the experimental group received eleven acid testosterone combined with cyclosporine therapy,patients in the control group received eleven acid testosterone therapy.Blood routine indexes,Th1,Th2,Th17 and Treg cells contents of the two groups before and after treatment were compared.Results Before treatment,hemoglobin content,leukocyte count,platelet count,peripheral blood Th1,Th2,Th17 and Treg cells contents of the two groups had no significant difference(P>0.05).After two courses of treatment,hemoglobin content,leukocyte count,platelet count of the experimental group were significantly higher than those of the control group.After two courses and four courses of treatment,peripheral blood Th1 and Th17 contents of experimental group were significantly lower than those of the control group,Th2 and Treg contents were significantly higher than those of the control group.Conclusion Eleven acid testosterone combined with cyclosporine treatment could be more effective to stimulate hematopoiesis,regulate immune function and T lymphocyte subsets content,it′s an effective method for the treatment of chronic aplastic anemia.
5.A NEW SONOGRAPHIC SIGN OF FETAL HYDROCEPHALUS-MIDLINE-WAVED SIGN REPORT OF 12 CASES
Xueda CHEN ; Xinmin LI ; Bin DAI ; Ling REN ; Lanfen LIU
Medical Journal of Chinese People's Liberation Army 1983;0(05):-
A new sonographic pattern of fetal hydrocephalus-midline-waved sign, and its mechanism were reported in this paper. When the abdominal wall of the pregnant woman was percussed by hand during ultrasound examination, the wave of midline echo was observed on sonoimage. The diagnosis of hydro-cephalus was made by this sign in all 12 fetuses, and confirmed by autopsy. No dilatation of the cerebral ventricle was observed in 5 out of 12 fetuses. It would be difficult to make the diagnosis of hy-drocephalus would previous diagnostic criteria be used. This sign is negative in normal fetuses, therefore-this finding has the practical value in the early and differential diagnoses of hydrocephalus.
6.Protein Preparation, Crystallization and Preliminary X-ray Crystallographic Analysis of Smu_195c From Caries Pathogen Streptococcus mutans
Zengqiang GAO ; Haifeng HOU ; Liqin LI ; Rui XU ; Yuhe LIANG ; Lanfen LI ; Xiaodong SU ; Yuhui DONG
Progress in Biochemistry and Biophysics 2007;34(2):203-206
Smu_195c is a protein with 86 amino acids in Streptococcus mutans, a primary pathogen for human dental caries. The specific function of Smu_195c is still unknown and there are no conserved domains in it. In order to find out its function, the gene encodes Smu_195c was cloned and expressed in E. coli as N-terminally 6*His tagged recombinant protein. Two crystal forms were obtained by the hanging drop method. Form Ⅰ belongs to space group P6122 or P6522 with the unit cell parameters a = b = 62.93 (A), c= 90.63 (A), γ=120° and form Ⅱ belongs to the space group P41212 or P43212 with the unit cell parameters a =b=57.97 (A), c = 103.51 (A).Crystals from the protein with His-tag belong to form Ⅰ, however, crystals from the protein without His-tag belong to both.
7.Viral etiology of acute upper respiratory infection in Hebei Province from 2013 to 2015
Guangyue HAN ; Yan LI ; Yanfang LIU ; Lanfen LIU ; Caixiao JIANG ; Qi LI ; Shunxiang QI
Chinese Journal of Disease Control & Prevention 2017;21(9):891-894
Objective To investigate the viral etiology and the epidemilogy of acute upper respiratory tract infection in Hebei Province from 2013 to 2015,providing scientific basis for diagnosis,prevention and control of the respiratory tract infection.Methods l 551 throat swab samples of the acute upper respiratory infection patients from four hospitals in Hebei Province were collected,Multiplex real-time PCR was used to detect 15 kinds of respiratory tract viruses for all specimens after nucleic acids extraction.Results Totally 714 positive samples were obtained from 1 551 samples,with a positive rate of 46.03%.Human rhinovirus(186,11.99%)was detected as the most common viral species,followed by human parainfluenza 3(167,10.77%),respiratory syncytial virus (122,7.87%),adenovirus (108,6.96%),influenza B virus (56,3.61%),human metapneumovirus(40,2.58%),influenza A virus(39,2.51%),human boca virus (38,2.45%),human parainfluenza 1 (35,2.26%),human coronavirus-229E/NL63 (33,2.13%),human enterovirus (32,2.06%),human parainfluenza 4(31,2.00%),human coronavirus-OC43 (30,1.93%),and human parainfluenza 2(11,0.71%).176 cases (11.35%) were detected as co-infection.The infection rate(56.07%) of under 5 years old group was higher than that of other groups.Conclusions The predominant respiratory viruses,who are responsible for acute upper respiratory tract infections in Hebei Province,are HRV,PIV3,RSV,ADV and IFV.Each virus possess the specific epidemiological feature.
8.Therapeutic effect of heating and bandage treatment for chronic lymphedema of extremities accompanied with erysipelas: a report of 80 cases.
Ke LI ; Ningfei LIU ; Lanfen FU ; Li WANG ; Jiajia CHEN ; Chen LIANG ; Yixin ZHANG
Chinese Journal of Plastic Surgery 2015;31(1):39-42
OBJECTIVETo investigate the therapeutic effect of heating and bandage treatment for chronic lymphedema of extremities accompanied with erysipelas.
METHODSFrom March 2004 to March 2013, 80 patients with chronic lymphedema of extremities accompanied with erysipelas were analyzed retrospectively. The patients underwent heating treatment (42 degree centigrade) with infrared light machine made by Shanghai Ninth People's Hospital, 2 hours a day, 20 hours for a session. Bandage treatment was adopted after heating treatment. 1 or 2 sessions were performed for each patient every year. The erysipelas occurring frequency, patients subjective feeling, treatment sessions and elastic material usage was recorded during the follow-up period. The erysipelas occurring frequency was tested by the method of rank and inspection. SPSS 17. 0 was used for statistical analysis.
RESULTSAfter heating and bandage treatment, the occurrence frequency of erysipelas was obviously controlled (Z = 7.598, P = 0.000). Erysipelas was not occurred any more in 60 (75%)patients. Remarkable reduction of occurrence frequency of erysipelas caused by various reasons was showed after treatment. Primary and secondary lymphedema after treatment were compared with those before treatment respectively, showing statistical difference (Z = 3.417 and 5.009, P = 0.001 and 0.000). Most of patients felt better subjectively. The relapse rate of erysipelas and lymphedema was lower if keeping using elastic material to give more pressure on extremities after therapy.
CONLUSIONSHeating and bandage treatment can obviously reduce the occurrence frequency of erysipelas. It can improve the quality of patients' lives. Simultaneously, the subsequent elastic material pressure therapy is essential.
Bandages ; Chronic Disease ; Combined Modality Therapy ; methods ; Erysipelas ; complications ; therapy ; Extremities ; Female ; Humans ; Hyperthermia, Induced ; methods ; Lymphedema ; complications ; therapy ; Middle Aged ; Pressure ; Recurrence ; Retrospective Studies ; Time Factors
9.Preparation, Crystallization and Preliminary X-ray Crystallographic Analysis of Smu.776 From Caries Pathogen Streptococcus mutans
Kaituo WANG ; Lanfen LI ; Xiaoyan ZHANG ; Yuhe LIANG ; Shicheng WEI ; Xiaodong SU
Progress in Biochemistry and Biophysics 2007;34(2):176-179
The gene smu. 776 encodes a possible S-adenosylmethionine-dependent methyltransferase of 385 residues in Streptococcus mutans, a primary pathogen for human dental caries. The DNA fragment of smu.776 was cloned into pET28a and expressed in good amount from the E. coli strain BL21 (DE3). Smu.776 protein was purified to homogeneity in a two-step procedure ofNi2+ chelating and size exclusion chromatography. Crystals were obtained by hanging-drop vapor diffusion method and diffracted to 2.0 (A) resolution.The crystal belongs to orthorhombic space group C2 with cell dimension of a=168.47 (A), b= 50.66 (A), c=53.96 (A), β=104.22°. The asymmetric unit is expected to contain one molecule with solvent content of 51.3%.
10.Protein Preparation, Crystallization and Preliminary X-ray Crystallographic Analysis of Smu.260 From Streptococcus mutans--a Cariogenic Dental Pathogen
Xiaoyan ZHANG ; Wei MI ; Yanfeng ZHOU ; Xiangyu LIU ; Lanfen LI ; Yuhe LIANG ; Shicheng WEI ; Xiaodong SU
Progress in Biochemistry and Biophysics 2005;32(3):217-220
Smu. 260 encodes a putative protein of 200 residues in Streptococcus mutans, a primary pathogen for human dental caries. Smu. 260 was cloned into expression vector pET28a and expressed in good amount trom the E. coli strain BL21 (DE3). Smu.260 protein was purified to homogeneity in a two-step procedure of Ni2+ chelating and size exclusion chromatography. The purified protein exists in two forms, a dimer form about 46 ku with yellow color and a tetramer form without apparent color. Crystals were obtained from the dimer protein by hanging-drop vapor-diffusion method. The crystals diffracted to about 2.3 A resolution and belong to orthorhombic space group P212121 with cell dimensions of a = 89.88A, b = 90.91 A, c = 105.17 A. The asymmetric unit is expected to contain two dimers with solvent content of 53%.