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Article
Immunohistochemical increase in cyclooxygenase-2 without apoptosis in different brain areas of subchronic nicotine- and d-amphetamine-treated rats
Cyclooxygenase-2 (COX-2) upregulation has been related to both neurodegeneration and physiological processes. To clarify whether nicotine-induced upregulation of COX-2 occurs, and to analyse its significance, ...
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Chapter
An Ant Colony Optimization plug-in to Enhance the Interpretability of Fuzzy Rule Bases with Exceptions
Usually, fuzzy rules contain in the antecedent propositions that restrict a variable to a fuzzy value by means of an equal-to predicate. We propose to improve the interpretability of fuzzy models by extending the...
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Article
Fatty acid composition of spanish shortenings with special emphasis on trans unsaturation content as determined by fourier transform infrared spectroscopy and gas chromatography
A Fourier transform infrared spectroscopic procedure was used to analyze 34 edible fats (22 shortenings and 12 vegetable margarines) as neat fats (IRNF) to determine their total trans fatty acid (TFA) content. Th...
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Chapter
FTIR Study of Interaction of Phenobarbitone With Human Serum Albumin
Barbiturates can produce all degrees of non-specific depression of the central nervous system (CNS), ranging from mild sedation to general anesthesia (1). The degree of depression depends on doses, route of ad...
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Chapter
Ftir Study Of The Effect Of Dietary Oil On Plasmatic Lipoprotein Structure
Plasmatic lipoproteins are particles that carry cholesterol to different tissues. Cardiovascular disease has been related to diet and lipoprotein composition. Numerous epidemiological studies have demonstrated...
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Article
Isolation of mutants of Penicillium purpurogenum with enhanced xylanase and β-xylosidase production
Penicillium purpurogenum was mutated with u.v. light to increase xylanase production. The best mutant, UV-64, was treated with N-methyl-N'-nitro-N-nitrosoguanidine and a second generation of mutants was obtain...
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Book
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Chapter
Study of Cholesteryl Oleate-Dimyristoyl Phosphatidyl Choline Interactions by Vibrational Spectroscopy
The knowledge of the spatial distribution of the different lipoprotein components allows the determination of lipoprotein structure. These lipoproteins are important from the point of view of cholesterol trans...
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Chapter
Vibrational Spectroscopic Study of Human Lipoproteins
The interest in the spectroscopic study of low density lipoproteins (LDL) rests on the role of these proteins regarding the cholesterol transport in blood. In this work we undertake the infrared study of the c...
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Chapter
Interaction Between Myelin Basic Protein and Cholesterol as Revealed by FTIR Spectroscopy
Myelin basic protein (MBP) is one of the major proteins in myelin membrane and is believed to play a significant role in the organization of the myelin sheath. Additional interest in the study of this protein ...
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Chapter
Infrared Spectroscopic Study of 18O(6)-Guanosbve
Infrared spectroscopy has proved to be a valuable tool in the structural investigation of nucleosides and nucleotides. One of the most important characteristics of vibrational spectra is the localization of so...
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Chapter
Hydrogen Bonding Between Guanine and CG Base Pair as Revealed by Vibrational Spectroscopy
The interaction between nucleotide bases is an important element in the structure of nucleic acids since much of biological specificity is derived from hydrogen bonding. Selective hydrogen bonds between nucleo...
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Chapter
Applications of SERS to the study of polypeptide/polynucleotide interactions
SER spectra of polynucleotides on metal colloids are difficult to obtain due to the stabilization effect caused by polymer molecules in general, when they are added to colloidal systems. In the case of polynuc...
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Chapter
Vibrational Spectroscopic Study of the Hydrogen Bonding of Cytidine with Guanosine
Selected model systems have been examined through a variety of physicochemical methods, including vibrational spectroscopy, to study protein-nucleic acid interactions. One of these models consists of hydrogen-...
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Article
Applications of Laser-Raman spectroscopy to the analysis of polynucleotides containing uridine residues
Qualitative characterization of uridine C(2′)-endo-anti and C(3′)-endo-anti forms has been carried out for the first time using Laser-Raman spectroscopy. Spectra are presented for some crystals containing the ...
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Chapter
Vibrational Dynamics of Liquid and Glassy Electrolytes
The interest of neutron inelastic scattering to study collective excitations in disordered systems is illustrated by the modifications of the frequency distribution of the coordinated water in LiCI, RH2O accordin...
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Chapter
Structural Relaxation and Dynamics of Water in Disordered MX-RH2O Systems
We establish experimentally for a suitable system that the typical structural evolution at the glass transition differs from the self similar behavior observed in the supercooled state. The limiting value for ...
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Article
Conformation of brain proteolipid apoprotein
The conformation of brain proteolipid apoprotein (PLA) has been investigated using infrared spectroscopy and freeze-fracture electron microscopy. For this purpose, spectroscopic samples consisting of a mixture...
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Article
Vibrational spectra and structure of myelin membranes
Raman and infrared spectroscopy have been simultaneously applied, for the first time, to the study of myelin membranes and their proteolipid protein (PLP) so as to obtain information on the secondary structure...
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Chapter and Conference Paper
Spectroscopic Studies of Uric Acid Salts related to Urolithiasis
We have previously reported the existence of near “pure” potassium urate in selected areas of a few urinary stones and also results suggesting that most of the urates studied could not be regarded as stoichiom...
