Accidents, Occupational ; statistics & numerical data ; Acute Disease ; China ; epidemiology ; Humans ; Occupational Diseases ; epidemiology ; Poisoning ; epidemiology

Objective To evaluate the tests in differential diagnosis of subtypes in patients with primary aldosteronism. Methods Fifty-seven patients in the past 7 years chnically diagnosed as primary aldosteronism [22cases of aldosterone-producing adenoma (APA), 26 idiopathic hyperaldosteronism (IHA) and 9 primary adrenal hyperplasia (PAH)] were selected. The plasma potassium, basic and upright plasma renin activity, plasma and urinary aldosterone were determined. 19 patients with essential hypertension served as control. All patients with primary aldosteronism underwent adrenal CT, postural stimuhtion test (PST) and adrenal venous sampling (AVS) to differentiate the subtypes. The clinical and laboratory data were followed up during survey. Results (1) The patients with APA had higher blood pressure and aldosterone level in plasma or urine, but lower plasma potassium and plasma renin activity than those with IHA. In PAH group, these parameters were in the ranges between APA group and IHA group. For the diagnosis of APA, IHA and PAH, the coincidences were 86.4%, 73.1% and 22.2% by adrenal CT, 86.4%, 80.8% and 77.8% by the ratio of aldosterone in both sides of AVS and 95.5%,92.3% and 100.0% by the ratio of aldosterone to cortisol in beth sides, respectively. (2) The plasmaaldosterone, systohc and diastolic blood pressure were decreased after operation in the patients of APA and PAH,and no significant changes were found in patients with IHA. Conclusion The abnormal laboratory findings in patients with APA axe more evident than those in IHA. The result of PST is overlapping considerably in cases ofAPA and IHA. Adrenal venous samphng yields a high coincidence, which should be done in patients with negative CT scanning. The ratio of aldosterone to eortisol in AVS is more reliable. The clinical and laboratory data,especially plasma potassium will be improved after operation in patients with APA and PAH. But there is no change in patients with IHA during the follow-up period.

Objective To investigate the efficacy and safety of tirofiban for emergency interventional therapy in patients with acute ST segment elevation myocardial infarction.Methods The 96 acute ST segment elevation myocardial infarction patients having accepted emergency percutaneous coronary intervention (PCI) were divided into treatment group and control group according to the treatment method with 48 cases each.The treatment group was given conventional standard treatment combined with tirofiban treatment [tirofiban intracoronary injection 10 μ g/kg and then intravenous 0.15 μ g/(kg· min) for 24-48 h].The control group was given conventional standard treatment only.The postoperative 60 min electrocardiogram ST segment recovery,the coronary blood flow TIMI grade,the major adverse cardiac events (angina,myocardial infarction,heart failure,death) and postoperative bleeding in 4 weeks were compared between the two groups.Results The patients having postoperative 60 min electrocardiogram ST segment recovery in treatment group was 45 cases (93.8％,45/48),in control group was 35 cases (72.9％,35/48),and there was statistical difference (P ＜ 0.05).The incidence rate of infarction vascular TIMI grade ≥ 3 grade flow in treatment group was 95.8％ (46/48),in control group was 75.0％ (36/48),and there was statistical difference (P ＜ 0.05).The incidence rate of the major adverse cardiac events 4 weeks in treatment group was significantly lower than that in control group,and there was statistical difference (P ＜ 0.05).There was no statistical difference in the incidence rate of bleeding between the two groups (P ＞ 0.05).Conclusion In patients with acute ST segment elevation myocardial infarction,the emergency interventional therapy with tirofiban is efficacy and safety.

Animals ; Brain Injuries ; blood ; cerebrospinal fluid ; chemically induced ; Endotoxins ; toxicity ; Female ; Male ; Natriuretic Peptide, C-Type ; analysis ; Neurotensin ; analysis ; Rabbits

pH, affects of different alkaline materials KOH, K 2CO 3, NaOH, Na 2CO 3 on the growth, and NaCl, KCl tolerance of 29 isolates from the saline and alkaline soils in Xinjiang and Qinghai Provinces of China and 1 type strain were studied. Results showed that only a few alkaliphilic actinomycetes were Na +-obligately dependent, and K +-sensitive. Some alkaliphilic actinomycetes were CO 3 2- -sensitive, and NaCl, KCl could inhibit their growth. 4 kinds of alkaline materials had no affect on growth of alkaliphilic Nocardiopsis, and these strains showed high tolerance to NaCl, KCl. So it was presumed that only K + and CO 3 2- obligately dependent alkaliphilic Actinomycetes maybe exist in alkaline environments.

Growth patterns of trichome and contaminative bacteria in Spirulina sp. liquid culture were observed, and it was found that the number of neutral and alkalophilic bacteria was always 105～106 times of that of Spirulina sp. trichome. It would be very difficult to get real pure Spirulina sp. strain by classical methods of dilution plate, capillary and single trichome selecting methods. A great deal of contaminative bacteria was washed out by two pretreatment processes. Low speed centrifugation was designed to wash the strains which usually deposit at bottom, and filtration method was designed to treat the strains usually floating at surface. Sandwich plate and dilution plate were designed for the purification of the mobile strains and non-mobile strains, respectively. A lot of strains were purified by the above processes and pure single trichome formed pure colonies on plates.

To study the anti-tumor metastatic constituents in Rhodiola wallichiana (HK) S H Fu var Cholaensis (Praeg) S H Fu, chemical constituents were isolated and purified by repeated column chromatography (silica gel, Toyopearl HW-40C and preparative HPLC). Their structures were elucidated on the basis of spectral data analysis. The anti-tumor metastasis assay was applied to evaluate the activities of the isolated compounds. Ten compounds (1-10) were isolated and their structures were identified by comparison of their spectral data with literature as follows: syringic acid (1), salidroside (2), tyrosol (3), scaphopetalone (4), berchemol (5), 2,6-dimethoxyacetophenone (6), rhobupcyanoside A (7), miyaginin (8), chavicol-4-O-β-D-apiofuranosyl-(1 --> 6)-O-β-D-glucopyranoside (9), eugenyol-O-β-D-apiofuranosyl-(1 --> 6)-O-β-D-glucopyranoside (10). Compounds 4-6 and 8-10, were isolated from this genus for the first time, while compound 7 was isolated from this plant for the first time. Compounds 2, 6-8 showed positive anti-tumor metastatic activities, and compounds 2 and 8 showed significant anti-tumor metastatic activities.
Antineoplastic Agents, Phytogenic ; isolation & purification ; pharmacology ; Cell Line, Tumor ; Humans ; Neoplasm Metastasis ; prevention & control ; Rhodiola ; chemistry

Breast Neoplasms ; metabolism ; pathology ; surgery ; Carcinoma ; metabolism ; pathology ; surgery ; Diagnosis, Differential ; Female ; Fibroma ; metabolism ; pathology ; surgery ; Humans ; Keratins ; metabolism ; Middle Aged ; Vimentin ; metabolism

Mouse model of leukemia hematopoietic stem cell transplantation is the key platform to study leukemia experimental treatment, which has been widely used in anticancer drug screening and in the studies of leukemia pathogenesis and experimental treatment. Transplantation mouse model has several advantages such as short cycle of model establishment, good repetitiveness, and the more stable biological characteristics of the tumor cell lines. The source of leukemia and tumor cell lines, choice of mouse species, the establishment of transplantation model, the recent advances of GVHD model and other aspects of transplantation mouse model are summarized in this review.
Animals ; Disease Models, Animal ; Graft vs Host Disease ; Hematopoietic Stem Cell Transplantation ; Leukemia ; surgery ; Mice

Objective To study the value of fast dynamic contrast enhanced MRI in the diagnosis of orbital occupying lesions. Design Retrospective ease series.Participants 21 patients with orbital occupying lesions.Methods All the 21 patients were performed on fast dynamic contrast enhanced MRI and were verified by pathology.The raw datum were processed by the software of GE Functool. Parameters such as time-intensity curve(TIC),time to peak(Tpeak),1 minute enhancement ratio(ERlmin)and maximum enhancement ratio(ERmax)were analyzed to study the characteristics of orbital diseases on fast dynamic contrast-enhanced MRI.Main Outcome Measures TIC,ERlmin,and ERmax.Results The characteristics of TIC between benign diseases and malignant tumors were different. Of the 16 cases of benign lesions,12 demonstrated as continuous increasing type,and of 5 cases of malignant lesions,3 cases of lym- phoma were all platform type.The ER1min of the malignant tumors(150.47?42.18)was higher than that of the benign lesions (101.37?43.02)(P=0.021).Cavernous hemangiomas had special progressing enhancing model.Conclusions Fast dynamic contrast enhanced MRI is valuable to distinguish malignant tumors from benign occupying lesions.(Ophthalmol CHN,2007,16:305-308)