Impact of parathyroidectomy among nondiabetic hemodialysis patients with severe hyperparathyroidism.

Background: Parathyroidectomy (PTX) is a treatment for hyperparathyroidism (HPT) and has uncertain risks and benefits. The aim of this study was to evaluate the effect of PTX versus nonoperative treatment among nondiabetic hemodialysis patients.

Methods: A retrospective matched cohort study was performed.

SfgA Renders More Stable to the External Environment.

is known as a key negative transcriptional regulator gene of asexual sporulation and sterigmatocystin production in . However, here, we found that the homolog gene shows a broad and complex regulatory role in governing growth, conidiation, sclerotia formation, secondary metabolism, and environmental stress responses in . When was deleted in the fungal growth was slowed, but the conidiation was significantly increased, and the sclerotia formation displayed different behavior at different temperatures, which increased at 30 °C but decreased at 36 °C.

[Distribution characteristics and edge effect of soil water and salt in silvopastoral system of the Yellow River Delta, China].

We measured soil water and salt distribution characteristics at 0-40 cm soil depth in a silvopastoral system of Fraxinus chinensis and Robinia pseudoacacia mixed forest × Medicago sativa, which is located in Land Use Scientific Observation Field Base of Ministry of Land and Resource in Wudi, Shandong Province, China. The moving split-window technique was used to analyze the internal-system edge effect. The results showed that both soil water and salt contents in this system heterogeneously distributed in the horizontal direction.

Fallopian tube occlusion with a shape memory polymer device: evaluation in a rabbit model.

Background: The present study evaluates the feasibility of a shape memory polymer (SMP) device for fallopian tube occlusion in rabbits.

Study Design: The SMP contraceptive device is made of poly(dl-lactic acid)-based poly(urethane urea) SMP in the shape of a spiral cylinder that was 10 mm long and had a diameter of 2.6 mm.

Bisulfite sequencing reveals that Aspergillus flavus holds a hollow in DNA methylation.

Aspergillus flavus first gained scientific attention for its production of aflatoxin. The underlying regulation of aflatoxin biosynthesis has been serving as a theoretical model for biosynthesis of other microbial secondary metabolites. Nevertheless, for several decades, the DNA methylation status, one of the important epigenomic modifications involved in gene regulation, in A.

Expression and subcellular localization of mechano-growth factor in osteoblasts under mechanical stretch.

Mechano-growth factor (MGF) is a stretch sensitive factor in myocytes, and it might also be produced by other mechanocytes under mechanical stimulation. In this study, both the mRNA and protein expression of MGF were detected in stretched osteoblasts. Quantitative analysis showed that a cyclic stretching stimulation caused a quick and sharp increase of MGF mRNA and protein expression from a low basal level under no stretch; the mRNA and protein levels respectively peaked in 6 and 12 h to 5 and 5.

[Simultaneous analysis of trace Cu2+, Ca2+ and Zn2+ in surface water from Yangtze and Jialing River with Kalman filter-spectrophotometry].

1-(2-pyridine azo)-2-naphthol(PAN) is one of color reagent to determine the concentration of many trace metal ions. The analyzing conditions of PAN chelating reaction with three metal ions such as Cu2+, Cd2+ and Zn2+, the spectral properties at maximum absorption wavelength of these chelate compounds, pH effect and reaction time and so on were studied. Combining with Kalman filter algorithm and spectrophotometric simultaneously determining on-line technology the water samples containing the three metal ion compounds chelated with PAN from our laboratory, Yangtze River and Jialing River were analyzed quantitatively under optimal analysis condition, and the recovery is between 90.

[Multi-layer model for algal growth under different behaviors of nutritious salt].

According to the fact that different behaviors of nutrition at different medium layers would make obviously different effects on rate of algal growth in water system, we established a new numerical model of the algae growth by considering these effects from various nutrition concentrations in water environment, on the surface and inside of algae cell, and especially the effect of adsorption/desorption of nutrition on the surface of algal cell. The validation of the model parameters are carried out by numerical iterative calculation with experimental data of literature, and computation results show that the mean relative error between the actual measured values cited from literature and the numerical results of this model is less than 6.9% .

[Synergistic effects by P and N pollution to fluctuation behavior/bloom of algae along the Three-Gorges valley].

Absorption rate coefficient of algae omega(i) to nutrients such as N and P could be used for describing algal increases/decreases velocity in water areas in theory. omega(i) raise might correspond to algal quickly growth and to ccelerate absorption of N and P while omega(i) decrease might correspond to algal decompose and release of N and P. According to locale measuring data along the Three-Gorges valley and algal dynamics model of nutritious absorption we have obtained some interest 3-dimension figures in which omega(i) will varies up and down obviously with N and P concentration in special bound to show a synergistic effects of N and P that might reveal an inner behavior of algal bloom/decompose.