Faculty of Dentistry, and §Division of Orthopedics, Department of Surgery, Faculty of Medicine, McGill University, Montreal, Quebec H3A 0C7, Canada.
Published: June 2014
AI Article Synopsis
Article Abstract
Biomimetic carbonation carried out with carbonic anhydrase (CA) in CO2-absorbing solutions, such as methyldiethanolamine (MDEA), is one approach that has been developed to accelerate the capture of CO2. However, there are several practical issues, such as high cost and limited enzyme stability, that need to be overcome. In this study, the capacity of CA immobilization on a porous solid support was studied to improve the instability in the tertiary amine solvent. We have shown that a 63% porosity macroporous carbon foam support makes separation and reuse facile and allows for an efficient supply and presentation of CO2 to an aqueous solvent and the enzyme catalytic center. These enzymatic supports conserved 40% of their initial activity after 42 days at 70 °C in an amine solvent, whereas the free enzyme shows no activity after 1 h in the same conditions. In this work, we have overcome the technical barrier associated with the recovery of the biocatalyst after operation, and most of all, these electropolymerized enzymatic supports have shown a remarkable increase of thermal stability in an amine-based CO2 sequestration solvent.
Renal cell carcinoma (RCC) is the most common malignancy that metastasizes to the thyroid; however, metastasis of RCC to a primary tumor of the thyroid is rare. The present study reports the case of RCC that had metastasized to the primary thyroid tumor; namely, a hyalinizing trabecular tumor (HTT). Notably, the RCC was resected 2 years prior.
Chongqing Key Laboratory of Cerebrovascular Disease Research, Chongqing, 400016, China; Department of Neurology, Yongchuan Hospital of Chongqing Medical University, Chongqing, 400016, China; NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China. Electronic address:
Major depressive disorder (MDD) is a destructive mental disease, yet the mechanism is still not clear. Carbonic anhydrase, an efficient catalyst for CO conversion to carbonate and protons, could affect many functions, such as memory formation recognition. Lately, we illustrated that carbonic anhydrase 1 (CAR1) knockout (CAR1) mice could lead to depressive-like behaviors, but the underlying molecular mechanism is unknown.
The authenticity of halal meat is a global issue because pork adulteration occurs. Certain religions, such as Islam and Judaism, prohibit the use of pork in food products. The purpose of this study was to evaluate the volume of trypsin with 10, 50 and 100 μL (20 μg/100 μL) and the digestion time from overnight to 30-120 min to establish a fast and straightforward procedure on proteomic analysis for halal authentication of meat and meat products.
Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China; Beijing Institute of Chinese Medicine, Beijing, China; Beijing Key Laboratory of Basic Research with Traditional Chinese Medicine on Infectious Diseases, Beijing, China. Electronic address:
A striking characteristic of the human fungal pathogen Candida albicans is its ability to switch between budding yeast morphology and the filamentous form, facilitating its adaptation to changing host environments. The filamentous growth of C. albicans is mediated by various environmental factors, such as carbon dioxide (CO), N-acetylglucosamine (GlcNAc), serum, and high temperature.
In this study, four depsides were isolated from Origanum dictamnus L. and Satureja pilosa Velen. medicinal plants and their structures were assessed by means of one-dimensional (1D)- and two-dimensional (2D)-nuclear magnetic resonance, high resolution mass spectrometry, and electronic circular dichroism analyses.
