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pro vyhledávání: '"Frederick A. Bettelheim"'
Gain a comprehensive understanding of chemistry and see how it relates to health science with INTRODUCTION TO GENERAL, ORGANIC, AND BIOCHEMISTRY. This bestseller features dynamic art, interesting examples, coverage of the latest issues, and a wide va
Autor:
Frederick A. Bettelheim
Publikováno v:
Annals of the New York Academy of Sciences. 106:247-258
Publikováno v:
Journal of Polymer Science Part C: Polymer Symposia. 23:409-417
Polysiloxane-s-triazinyl ether preparation, noting structural and physical properties of compounds
Autor:
Frederick A. Bettelheim
Publikováno v:
Experimental Eye Research. 79:747-752
This paper briefly reviews light scattering methodologies in lens research. In the phenomenological sense cataract formation (lens opacities or turbidities) in its early stages can be described by enhanced scattering of light. In the analytical sense
Autor:
Frederick A. Bettelheim, Ada Mofunanya
Publikováno v:
Experimental Eye Research. 73:133-136
Excised bovine and rhesus monkey vitreous samples were subjected to different hydrostatic pressures (0.03, 1 and 2 atm) for 12 hr. At the end of the experiment the samples were frozen in a −70°C dry ice-acetone bath and thereafter maintained in fr
Publikováno v:
Biochemical and Biophysical Research Communications. 280:14-18
In chaperoning dithiothreitol-denatured alpha-lactabumin, alpha-crystallin forms a chaperoning complex. In order to study the kinetics of such chaperoning it needs to be established whether the formation of the chaperoning complex is a reversible or
Publikováno v:
Current Eye Research. 22:438-445
Reversible syneretic response to pressure in bovine and rhesus monkey lenses has been demonstrated previously by invasive techniques, such as differential scanning calorimetry and thermogravimetric analysis. This study is designed to investigate whet
Publikováno v:
Biochemical and Biophysical Research Communications. 261:292-297
Molecular chaperones prevent the aggregation of partially folded or misfolded forms of protein. alpha-crystallin performs such a function in the ocular lens. To gain insight into the mechanism of the anti-aggregation activity of alpha-crystallin, we
Autor:
Alex Chen, Frederick A. Bettelheim
Publikováno v:
International Journal of Biological Macromolecules. 22:247-252
Light scattering measurements were performed on dilute solutions of alpha-crystallin mixed with different combinations of beta H, beta L and gamma-fractions of bovine lens crystallins. Light scattering intensities were obtained as a function of scatt
Publikováno v:
Current Eye Research. 16:917-924
Congenital nuclear cataracts in strain 13/N guinea pigs are caused by a single splice-site mutation in the zeta-crystallin gene. Very little is known of the physical factors involved in lens opacification of this system. The aim of this study is to e