OBJECTIVEThe research aimed at studying the biological characteristics of rhizobia isolated from Abrus cantoniensis.

METHODThe rhizobia strains, isolated from different environments in Guangxi, were studied for their growing characters and the generation time. They were also compared for survival capabilities under stresses caused by NaCl, pH, temperature, and different kinds and concentration of antibiotics.

RESULTThe strains obtained from A. cantoniensis in subtropical zone produced alkali in YMA medium, the average generation time was 14.8 hours, and thus they belong to slow-growing rhizobia. Rhizobia strains differed greatly in respect to tolerance of high temperature, adaptability of acidic environment and sensitivity to four antibiotics, but they had the same abilities of using different carbon and nitrogen sources. After 70 days from inoculated strains, the seedling formed nodules on the root (85.0%), and the dry matter of vine was increased by 51.1%.

CONCLUSIONThe rhizobia strains isolated from different ecological environments are good germplasm resources of tolerances to high temperature and acidic environment. The research will greatly help utilize the rhizobia resources and enhance the quality of crude drugs of medicinal leguminosae.

Abrus ; microbiology ; Anti-Bacterial Agents ; pharmacology ; Culture Media ; Hydrogen-Ion Concentration ; Nitrogen Fixation ; Plants, Medicinal ; microbiology ; Rhizobium ; drug effects ; growth & development ; isolation & purification ; Temperature

OBJECTIVETo explore the methods and therapeutic efficacy of restitution combined with percutaneous vertebroplasty (PVP) for treating osteoporosis vertebral compression fracture (OVCF).

METHODSRecruited were 132 senile patients with OVCF who were willing to receive minimally invasive therapy were assigned to the comprehensive treatment group and the percutaneous kyphoplasty (PKP) group. The 89 vertebral bodies in the 68 cases of the comprehensive treatment group received restitution combined with PVP, while the 81 vertebral bodies in the 64 cases of the control PKP group received PKP alone. All patients completed the follow-ups for more than 3 years. The therapeutic efficacy was assessed using visual analogue scale (VAS), Oswestry disability index (ODI), Cobb's angle, the height ratios of the diseased vertebral anterior edge and middle edge. The operation time for a single centrum, the perspective time during the operation, the incidence of bone cement leakage, the injection rate of the bone cement, the cost of hospitalization, and the hospital days were compared between t he comprehensive treatment group and the PKP group.

RESULTSCompared with before treatment in the same group, the VAS and ODI were significantly lower, the height ratios of the diseased vertebral anterior edge and middle edge, and the Cobb's angle were obviously improved in the two groups, showing statistical difference (P < 0.01). There was no significant difference in the aforesaid indices between the two groups after treatment at the same time point (P > 0.05). There was no significant difference in the incidence of bone cement leakage, th e injection rate of the bone cement, or the hospital days between the two groups (P > 0.05). But the operation time f or individual vertebral body, the perspective time during the operation, and the cost of hospitalization were obviously less in the comprehensive treatment group than in the PKP group (P < 0.01).

CONCLUSIONSRestitution combined PVP could achieve the same therapeutic efficacy as that of the PKP. It could effectively restore the diseased vertebral height and correct the spinal kyphosis. Besides, there was no statistical difference in the incidence of bone cement leakage.

Aged ; Aged, 80 and over ; Female ; Fractures, Compression ; etiology ; therapy ; Humans ; Kyphoplasty ; Male ; Medicine, Chinese Traditional ; methods ; Middle Aged ; Osteoporosis ; complications ; Posture ; Spinal Fractures ; etiology ; therapy ; Vertebroplasty ; methods

Objective To explore the quality of life (QOL) and its influential factors among patients with 3 major rheumatic diseases. Methods A total of 216 patients with rheumatic diseases (84 patients with systemic lu- pus erythematosus, SLE, 83 with rheumatoid arthritis, RA, and 49 with ankylosing spondylitis, AS) were recruited. The information with regard to their quality of life, sociopsychological factors and the evaluation of disease activity were obtained by using the medical outcomes study short form-36 (SF-36) and clinic documents. Results Patients with rheumatic diseases scored significantly lower with each subscale of SF-36 as compared to those of a healthy popu- lation in China (P

Simulation teaching is helpful to learn general principles of solving complex problems,making decisions,resource management and teamwork behaviors during clinical treatment in order to prevent,ameliorate and resolve critical incidents and crisis situations.The medical staff will improve their medical,cognitive and social skills in the recognition and treatment of realistic and complex medical situation.

OBJECTIVEThe research aimed at the effects of different nitrogenous compounds on growth and nodulation of Abrus cantoniensis.

METHODAfter the seedlings of the herb were inoculated with rhizobia in potted culture, they were supplied with nutrition solutions which contained the three nitrogenous compounds, KNO3, NH4NO3, (NH4)2SO4 of different nitrogen concentration. The growth and nodulation of seedlings was determined after 70 days.

RESULTDifferent nitrogenous compounds were able to enhance the vegetable growth of seedlings variously. The effect of (NH4)2SO4 and NH4NO3 on growth was better than that of KNO3. Seedlings nodulation was obviously inhibited by these nitrogenous compounds. Their inhibitory effects ranked NH4NO3 > (NH4)2SO4 > KNO3. The treatments of KNO3 and the lower concentration treatments of NH4NO3 and (NH4)2 SO4 didn't inhibit the nodulation of seedlings, but the higher concentration treatment of NH4NO3 and (NH4)2SO4 severely inhibited nodulation or even made a no formation of nodule.

CONCLUSIONThe results showed that ammonium nitrogen the higher inhibitory ability to the nodulation of seedlings of A. cantoniensis than nitrate nitrogen. Therefore, the application of ammonium nitrogen fertilizer should be controlled in culture of the herb, which is in favor of increasing the function of biological nitrogen fixation and the quality of the medicinal materials of A. cantoniensis.

Abrus ; growth & development ; Ammonium Sulfate ; Biomass ; Fertilizers ; Nitrates ; Nitrogen Fixation ; physiology ; Plants, Medicinal ; growth & development ; Potassium Compounds ; Seedlings ; growth & development

OBJECTIVETo develop a method for ultrasonic extraction and determination of total flavonoids in Abrus cantoniensis, and to analyze its dynamic changes.

METHODThe optimized condition of extraction of total flavonoids was studied with orthogonal design. The contents of total flavonoids in different organs and of different growth stages were determined by UV-visible spectrophotometer.

RESULTThe ethanol volume and extraction times were the main factors impacting the effects of ultrasonic extraction. The content of total flavonoids in stems were higher than in roots and the lowest in leaves. The dynamic changes of total flavonoids contents in roots and stems of A. cantoniensis were in similar trends. Its total flavonoids content in the two parts of plant increased gradually with the growth and reached the maximum in October, and the content decreased significantly in Feburay of next year. The content of total flavonoids in leaves reached also to the highest value before leaves fell off.

CONCLUSIONThe optimized extraction method of total flavonoids in Abrus contoniensis was obtained with three times with 80% ethanol at 20 times of volume for 30 min. The results implied that the best yield and quality may be obtained before leaves fall.

Abrus ; chemistry ; growth & development ; Ethanol ; Flavonoids ; isolation & purification ; Plant Leaves ; chemistry ; Plant Roots ; chemistry ; Plant Stems ; chemistry ; Plants, Medicinal ; chemistry ; growth & development ; Seasons ; Technology, Pharmaceutical ; methods ; Ultrasonics

Flow cytometry was previously applied for analysis of Rh(D) antigen density, therefore it was suggested that the flow cytometry may be used for routine detection of weak D positive phenotypes. This study was purposed to evaluate its practicability. Six weak D positive and 7 DEL individuals were detected by using saline, IAT and absorption/elution test from 2010 to 2011 years. By RHD genotyping, zygosity analysis and sequencing, 3 cases of weak D type 15, 3 cases of partial D type DVI-III and 7 cases of DEL carrying RHD1227A alleles were identified. Taking 2 normal Rh(D)-positive and 2 D-negative samples as controls, all the samples were tested by using flow cytometry, and the median fluorescence intensities were observed as well. The results indicated that all weak D type 15 and partial D type DVI samples were detected to be positive by flow cytometry, as compared with 2 Rh(D)-negative samples (P < 0.05). Seven 7 DEL samples were tested to be negative (P > 0.05), although one of 7 DEL was tested as "±" in IAT and strong positive in absorption/elution. The RHD zygosity analysis showed this DEL individual as RHD(+)/RHD(+) homozygote. It is concluded that the sensitivity of detecting D antigen by flow cytometry is similar to that of IAT, but lower than absorption/elution test. As for detecting weak D or partial D antigens, IAT is easier than flow cytometry; as for identifying DEL, the flow cytometry is not sensitive enough.
Adult ; Alleles ; Blood Donors ; Blood Grouping and Crossmatching ; Flow Cytometry ; methods ; Genotype ; Humans ; Phenotype ; Rh-Hr Blood-Group System ; blood ; genetics ; immunology

OBJECTIVETo explore the expressions of endothelial nitric oxide synthase (eNOS) and cytochrome P450 (aromatase) in the testis of sexually mature male SD rats and their significance.

METHODSEighteen male SD rats, 6 five-week, 6 seven-week and 6 ten-week old, were selected for this study. Paraffin sections of the left testis were made and the expressions of eNOS and P450 observed by the immunohistochemical ABC method.

RESULTSPositive expressions of eNOS and P450 were found to be + + +, + and + + in the Leydig cells of the five-week, seven-week and ten-week old rats, respectively, and they were also observed in a few spermatocytes, though with no regularity.

CONCLUSIONIn the Leydig cells of sexually mature male SD rats, eNOS and P450 are differently expressed in different stages of sexual maturation, and they are correlated as well.

Animals ; Aromatase ; metabolism ; Male ; Nitric Oxide Synthase Type III ; metabolism ; Rats ; Rats, Sprague-Dawley ; Sexual Maturation ; Testis ; metabolism

OBJECTIVEIn order to fully understand hepatitis c virus (HCV) genotype 3b, 1a, 2b and 6a infection in China, We built HCV 5'-noncoding region (5'-NCR) of different genotypes and subtypes.

METHODSThe classification HCV into variable genotypes (subtypes) was carried on by programs A, B and C A. Using a combination of three restriction endonuclease BHH' (BsrB I, Hae II, Hinf I) digestions at the same time. The distinct genotypes were classified into 5 groups: genotype 1 (1a, 1b), 6a, 2 (2a, 2b), genotype 3 (3a, 3b), genotype4 (4a). B. With regard to genotype 1, we could distinguish subtype 1a from 1b using BstU I digestion. C. Using restriction endonuclease Hae III, genotype 2a, 2b, 3b, 4a, 6a are differentiated respectively.

RESULTS(1) HCV genotype 1a, 1b, 2a, 2b, 3a, 3b, 4a, 6a are fully discriminated by comparison with the genotypes regular samples. (2) Of the 93 patients, HCV genotype distribution in China was 66.67% for 1b, 18.28% for 2a, 3.23% for 1b/2b, 3b, 2b respectively. 2.15% for 2a/2b, 1b/2a respectively. 1.08% for 1a.

CONCLUSIONThis research indicated that adoption of HCV 5'-NCR A B C restriction endonuclease digestions techniques, might be sensitive and efficient to detect HCV and discriminate HCV genotype (subtypes) 1a to 6a.

5' Untranslated Regions ; chemistry ; DNA Restriction Enzymes ; Genotype ; Hepacivirus ; classification ; genetics ; RNA, Viral ; analysis

OBJECTIVETo investigate the risk factors of transplant renal artery stenosis (TRAS).

METHODSThe clinical records of 26 patients undergoing renal transplantation in our hospital between 2000 and 2005 were retrospectively analyzed, whose final diagnosis of TRAS was established on the basis of arteriographic findings. A case-control group of 52 post-renal transplantation patients were sampled by stratified randomization, whose blood pressure and renal graft function were without complications of avascularity or urinary passage. The two groups were matched for the operation time, gender, age, primary diseases, blood type, PRA and HLA matching and use of immunosuppressants. Possible events related to TRAS such as cold ischemia time, acute rejection, delayed graft function and approaches of arterial anastomosis were compared.

RESULTSFifteen patients (57.7%) with TRAS had a history of acute rejection episode, 7 (26.9%) had delayed graft function, both rates of which were higher than those in the control group (P<0.05). The cold ischemic time and type of arterial anastomosis showed no significant effect on TRAS occurrence (P>0.05).

CONCLUSIONSPost-transplant renal artery stenosis is closely associated with acute rejection and delayed graft function but not with the cold ischemic time or the type of arterial anastomosis.

Adult ; Case-Control Studies ; China ; epidemiology ; Delayed Graft Function ; complications ; Female ; Graft Rejection ; complications ; Humans ; Kidney Transplantation ; adverse effects ; Male ; Middle Aged ; Renal Artery Obstruction ; epidemiology ; etiology ; Retrospective Studies ; Risk Factors