Materials and Methods 254 patients were examined with 64 MDCT,who were divided into 4 groups according heart rate(HR≤60times/min,61-69times/min,70-75times/min and ≥76times/min). Three dimensional reconstructions were used with volume rendering(VR),maximum intensity projection(MIP)and curved planar reformation(CPR),and the image quality and influencing factors were evaluated among the 4 groups.
HIF-1 activity depends on the amout of HIF-1α subunit, which is tightly regulated by the oxygen tension. To study the expression about HIF-1α mRNA in ischemic myocardium after acute myocardiac infarction(AMI), the animal AMI model were made by rabbits, divided into 4 groups at random and infected Ad-HIF-1α,Ad-Blank,Rz-HIF-1α respectively,Sham group was regarded as control.
Methods 40 ICR mice were divided into four groups: the control,the low(0.5 mg /kg),the middle(4 mg/kg) and the high(20 mg/kg),intragastric through mouth for 21 d,detected the thymocyte apoptosis by flow cytometry,observed the fas protein expression in thymus by immunohistochemistry.
Methods Total 80 patients with CHD were included and randomly divided into four groups: Control group(no simvastatin) and simvatatin groups of various groups(5mg/day,10mg/day,20mg/day),20 patients in each group.
Methods Thirty two male SD rats after implanted catheter intrathecally were randomly divided into four groups (n=8): CCD+NS groups,CCD+intrathecal administered Cav3.0 anti-sence oligonucleotide(CCD+Cav3.0-AS group),CCD+intrathecal administered Cav3.3 mismatch oligonucleotide (CCD+Cav3.0-MM group) ,sham+NS group.
Methods: 458 patients with ascites were selected and reviewed retrospectively,which were divided into four groups: purely exudative tuberculous peritonitis(group Ⅰa,n=39),cirrhosis combined with tuberculous peritonitis(group Ⅰb,n=14),cirrhosis(group Ⅱa,n=315)and others(group Ⅱb,n=90).
Methods: Intestinal ischemia/reperfusion model in mice were set up and 32 mice of Kunming species were divided randomly into 4 groups(n=8): Sham group, I/R group, I/R+GLP-2 group and I/R+glutamine group.
128 of Cherry Valley Duck in good health and 1 day old were allocated into 4 groups as control group(basic diet),basic diet +5 mg/kg of soybean isoflavone(SIF),basic diet +10 mg/kg and 15 mg/kg of SIF respectively.
Methods: The lesser saphenous sural veno-neuro-adipofascial pedicled fasciocutanous flap (6.0 cm×2.0 cm in size with pedicle width of 1.5 cm, length/width ratio 4∶1) was successfullly established in New Zealand White rabbit. Twenty rabbits were randomly allocated into 4 groups of 10 flaps.
Methods 400 Drosophila of 2 days old were random allocated into 4 groups, which were given 0% ,0.04% , 1% ,25% tween-80 solu-tion, respectively, for 3 days for acute toxicity test. The numbers of dead drosophila were observed every day and then median lethal concentrations (LC50) were calculated.
The structures of binary Ln-X chalcogenides can be divided into 4 groups: derivatives of NaCl-type structures, structures with one small parameter b≈ 4 ?, structures similar to those of oxides and pniktides, and derivatives of PbFCl-type structures.
These RS were divided into 4 groups by clustering analysis and mapped onto chromosomes 1, 3, 4, 7, 8, 9, 10 and 11, respectively, by genetic mapping.
Methods: Thirty-two adult male rabbits were randomly divided into 4 groups.
Materials and methods: Weaning male Wistar rats were randomly divided into 4 groups according to the dietary Mg and Ca as follows: Mg-adequate Ca-adequate (control), Mg-adequate Ca-deficient, Mg-deficient Ca-adequate, Mg-deficient Ca-deficient.
The patients were divided into 4 groups (small-PD/non-restrictive, n = 124; small-PD/restrictive, n = 29; large-PD/non-restrictive, n = 50; large-PD/restrictive, n = 23).
The genotypes can be divided into four groups according to the acetylator phenotype: groups with rapid (R/R), intermediate (R/S), or slow (S/S) acetylation and a group combining intermediate and slow alleles ("R/S or S/S").
Relations between the energy of protonation of 395 organic compounds divided into four groups and their molecular volume were drawn.
The crystals studied were divided into four groups: (i) crystals 0.1-0.9 μm in diameter, (ii) twinned crystals 1-2 μm in diameter, (iii) needle-like crystals from 5 to 1500 μm in diameter, and (iv) isometric crystals (the latter were not measured).
boydii serotype representatives were divided into four groups, in which serotype C13 strain was remarkably distinguished from the other serotype strains.
Under this goal, the first tier contains four evaluation aspects, and the second tier contains sixteen evaluation criteria divided into four groups.