According to the synonymous codons used in 28 open reading frames from Pichia pastoris, the codon usage in this species was calculated and 19 codons have been inferred to be its optimal codons. The results show that pattern of the codon usage in P. pastoris is similar to that in S. cerevisiae and in K. lactis except for the synonymous codon of glutamic acid, which may be the special bias of P. pastoris.

Cardiac Catheterization ; standards ; Heart Defects, Congenital ; therapy ; Humans

Objective To evaluate the advantages and disadvantages of different puncture positions in percutaneous nephrolithotomy. Methods Three hundred fifty-six patients who underwent PCNL were analyzed from March 2012 to October 2015. The passage caliber was 16F-20F. There were 217 cases in prone position and 139 cases in supine position. Results The successful operation in PCNL was 354 cases , while the remaining 2 cases were performed by open surgery. The primary stone clearance rate was 75.5%. The additional PCNLs were performed in 23 cases, and 63 cases of residual calculi were treated by ESWL. 11 patients were treated due to infection or bleeding by the additional PCNLs. There were 3 cases with massive hemorrhage which were treated by Interventional embolization therapy , 12 cases in postoperative fever , no renal resection , no intestinal injury, no deaths. There was no significant difference in stone clearance rate and complication rate between the two groups. Conclusion The puncture position of PCNL can be optional based on the stone size , stone location, degree of hydronephrosis ,and patient′s cardiopulmonary condition individually.

Acupuncture Points ; Acupuncture Therapy ; Adult ; Female ; Humans ; Kidney ; physiopathology ; Male ; Middle Aged ; Yang Deficiency ; physiopathology ; therapy ; Young Adult

Dentin-Bonding Agents ; Water

Animals ; Central Nervous System Diseases ; drug therapy ; Drug Design ; Drugs, Chinese Herbal ; Humans ; Inflammation ; drug therapy

Objective To explore the value of 3.0 T cardiac magnetic resonance (CMR) intravoxel incoherent motion (IVIM) for evaluating microvascular dysfunction in hypertrophic cardiomyopathy (HCM) patients. Methods Twenty-six HCM patients and 12 healthy controls, who received CMR examination in the First Hospital of Lanzhou University from Apr. 2016 to Oct. 2017, were enrolled. All volunteers underwent short-axis cardiac cine and IVIM scans, and HCM patients underwent late gadolinium enhancement (LGE) scan. The fraction of fast apparent diffusion coefficient (f), fast apparent diffusion coefficient (ADCfast) and slow apparent diffusion coefficient (ADCslow) were measured using MITK-Diffusion post-processing software. End-diastolic thickness (EDTH) was measured on short-axis cine image. HCM patients were grouped according to the severity of the left ventricular hypertrophy and whether having LGE or not. The differences of f value, ADCfast and ADCslow were compared between HCM patients and healthy controls, non-hypertrophic segments and hypertrophic segments of HCM patients, LGE segments and non-LGE segments of HCM patients, and different hypertrophic subgroups in hypertrophic segment group. Spearman correlation analysis was performed to explore the correlation between IVIM parameters (f value, ADCfast and ADCslow) and EDTH in each segment. Results The ADCslow and ADCfast of the HCM patients were lower than those of the healthy controls (ADCslow: 0.003 [0.002, 0.005] mm2/s vs 0.004 [0.002, 0.007] mm2/s, ADCfast: 0.046 [0.025, 0.074] mm2/s vs 0.069 [0.052, 0.086] mm2/s), and the differences were significant (Z=-2.434 and -7.268, both P<0.05). There was no significant difference in the f value between the HCM patients and healthy controls (P>0.05). The ADCfast values of the non-hypertrophic segment group and the hypertrophic segment group in the HCM patients were 0.051 (0.029, 0.077) mm2/s and 0.027 (0.019, 0.052) mm2/s, respectively, which were both significantly lower than that of the healthy controls (Z=-5.505 and -8.144, both P<0.01). The f value and ADCfast of the hypertrophic segment were significantly lower than those of the non-hypertrophic segment (0.444 [0.080, 0.834] vs 0.735 [0.302, 0.877] and 0.027 [0.019, 0.052] mm2/s vs 0.051 [0.029, 0.077] mm2/s, Z=-3.527 and -4.722, both P<0.01). There was significant difference in ADCfast between the mild, moderate, severe and extremely severe hypertrophic segment subgroups (0.035 [0.021, 0.061] mm2/s, 0.023 [0.015, 0.038] mm2/s, 0.018 [0.013, 0.025] mm2/s and 0.012 [0.005, 0.055] mm2/s, respectively; H=9.769, P=0.021); however, pairwise comparison showed no significant differences (all P>0.05). The f value and ADCfast of the segmental myocardia with LGE were significantly lower than those without LGE (Z=-2.704 and -2.143, P=0.007 and 0.032). Spearman correlation analysis showed that EDTH was significantly negatively correlated with f value and ADCfast (r=-0.195 and -0.282, both P<0.01). Conclusion CMR IVIM technology can non-invasively and quantitatively reflect cardiac microvascular dysfunction in HCM patients. The severity of microvascular dysfunction is related to the severity of myocardial hypertrophy. Microvascular dysfunction is also present in non-hypertrophic and non-LGE myocardia.

Objective To observe the influences of stemona alkaloids on esterase isozymes activities and glycogen content of Oncomelania hupensis in order to explore the molluscicidal mechanism of stemona alkaloids.Methods O.hupensis snails were immersed in the liquid of stemona alkaloids at the concentration of 6.5 mg/L(72 h LC50),the surviving ones were picked out and sampled after being immersed for 12,24,48,72,96 h,then PAGE and anthrone colorimetry methods were used to observe the changes of liver esterase isozymes activities and tissue glycogen content of O.hupensis during the immersion period.A group of snails immersed in de-chlorinous water served as control.Results Esterase isozymes activities firstly increased,and then decreased until almost lost completely during the 96 h immersion period.Meanwhile,glycogen content gradually decreased as the immersion time extended.After being immersed for 96 h,glycogen content decreased by 72.00% compared with the control group.Conclusion Stemona alkaloids could inhibit the viability of O.hupensis by causing decrease of esterase isozymes activities and glycogen content.

Objective To investigate the state of Th1/Th2 cytokine imbalance in patients with lupus nephritis (LN) and its role in the pathogenesis. Methods Plasma level of interleukin-18 and interleukin-13 in 18 patients with active LN and 16 normal controls were measured by enzyme-linked immunoadsordent assay (ELISA). IL-18 and IL-13 expression in the renal tissues from 18 patients and 6 normal renal tissues were also detected by immunohistochemical assay. The ratio of plasma and renal IL-18/IL-13 was then calculated. Results Plasma levels and renal expression of IL-13 and IL-18 in patients with LN were increased significantly compared to those of normal controls (P0.05). The ratio of renal IL-18/IL-13 was not significantly different among all types of LN and normal controls. The ratio of plasma IL-18/IL-13 was positively correlated with LN renal tissue activity index (AI), but no correlationship could be found in renal IL-18/IL-13 ratio. Conclusion It seems that the immune disturbance in systemic lupus erythematosus (SLE) can not be simply divided into Th1 predominant and Th2 predominant. It seems far complicated than this Th1/Th2 paradigm. It may be affected by the state of disease activity, the lesion location and the type of pathology.