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  • Hyaluronic acid-binding protein  (3)
  • protein quality  (3)
  • Solvolysis  (2)
  • Springer  (8)
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Keywords
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  • Springer  (8)
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  • 1
    Electronic Resource
    Electronic Resource
    Localization of hyaluronan in various muscular tissues (1991)
    Springer
    Cell & tissue research 263 (1991), S. 201-205 
    Details
    ISSN: 1432-0878
    Keywords: Hyaluronan (hyaluronic acid) ; Hyaluronic acid-binding protein ; Microwave-fixation ; Immunohistocytochemistry ; Striated muscle ; Smooth muscle ; Rat (Sprague-Dawley)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The histochemical distribution of hyaluronan (hyaluronic acid, HYA) was analysed in various types of muscles in the rat by use of a hyaluronan-binding protein (HABP) and the avidin-biotin/peroxidase complex staining procedure. Microwave-aided fixation was used to retain the extracellular location of the glycosaminoglycan. In skeletal muscles, HYA was detected in the connective tissue sheath surrounding the muscles (epimysium), in the septa subdividing the muscle fibre bundles (perimysium) and in the connective tissue surrounding each muscle fibre (endomysium). HYA was heterogeneously distributed in all striated muscles. In skeletal muscles with small fibre dimensions (e.g., the lateral rectus muscle of the eye and the middle ear muscles), HYA was predominantly accumulated around the individual muscle fibres. Perivascular and perineural connective tissue formations were distinctly HYA-positive. In cardiac muscles, HYA was randomly distributed around the branching and interconnecting muscle fibres. In comparison, smooth muscle tissue was devoid of HYA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00318761
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  • 2
    Electronic Resource
    Electronic Resource
    The kinetics of the solvolysis of chloropentacyanocobaltate(III) ions in water containing 2-methoxyethanol or diethylene glycol: A contrast with the effect of more hydrophobic cosolvents (1994)
    Springer
    Journal of solution chemistry 23 (1994), S. 1089-1100 
    Details
    ISSN: 1572-8927
    Keywords: Solvolysis ; kinetics ; aqueous solvent mixtures ; Co(III) complexes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The kinetics of the solvolysis of [Co(CN)5Cl]3− have been investigated in water +2-methoxyethanol and water + diethylene glycol mixtures. Although the addition of these linear hydrophilic cosolvent molecules to water produces curvature in the variation of log(rate constant) with the reciprocal of the dielectric constant, their effect on the enthalpy and entropy of activation is minimal, unlike the effect of hydrophobic cosolvents. The application of a Gibbs energy cycle to the solvolysis in water and in the mixtures using either solvent-sorting or TATB values for the Gibbs energy of transfer of the chloride ion between water and the mixture shows that the relative stability of the emergent solvated Co(III) ion in the transition state compared to that of Co(CN)5Cl3− in the initial state increases with increasing content of cosolvent in the mixture. By comparing the effects of other cosolvents on the solvolysis, this differential increase in the relative stabilities of the two species increases with the degree of hydrophobicity of the cosolvent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00976258
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  • 3
    Electronic Resource
    Electronic Resource
    Bioavailability of tryptophan in selected foods by rat growth assay (1989)
    Springer
    Plant foods for human nutrition 39 (1989), S. 85-91 
    Details
    ISSN: 1573-9104
    Keywords: protein quality ; amino acids ; rats ; bioavailability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Tryptophan bioavailabilities were estimated in 16 protein sources using 10 day rat growth assays with casein as the reference protein. Growth responses of rats fed test food diets were compared to growth responses of rats fed basal diets with graded levels of tryptophan ranging from 50 to 100 mg of tryptophan/100 g diet. Estimates of tryptophan availabilities were 85–100% for all products except whole wheat cereal (73%) and pinto beans (59%). Results of a previous study on lysine availability indicated that poor response to pinto beans was due either to poor digestibility or to the presence of some unidentified growth inhibitor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01092405
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  • 4
    Electronic Resource
    Electronic Resource
    Rat bioassays for methionine availability in 16 food sources (1989)
    Springer
    Plant foods for human nutrition 39 (1989), S. 77-84 
    Details
    ISSN: 1573-9104
    Keywords: protein quality ; amino acids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Methionine availabilities of 16 test proteins were assessed by comparing ten day rat growth response to the test diets and reference (casein) diets. In a preliminary study, various concentrations of methionine and cystine were fed to determine methionine requirements and effect of excess cystine. Results indicated a methionine requirement of about 550 mg per 100 g diet. Cystine had a sparing affect of 50–55%, i.e., about 300 mg could be used to meet methionine requirements. Further additions of cystine (up to 2.6 times methionine) did not affect rat growth. Methionine availabilities were excellent (88–100%) for 15 of the 16 test foods; only pinto beans (58%) were low, but prior evidence indicates that the poor growth response was due to some factor other than availability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01092404
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  • 5
    Electronic Resource
    Electronic Resource
    The use ofStreptococcus zymogenes for estimating tryptophan and methionine bioavailability in 17 foods (1989)
    Springer
    Plant foods for human nutrition 39 (1989), S. 121-127 
    Details
    ISSN: 1573-9104
    Keywords: protein quality ; tryptophan ; methionine ; S. zymogenes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract As part of a cooperative study assessing amino acid bioavailability and/or protein quality, the provisional method of Boyneet al. (Brit J Nutr 21: 181–206) was used to assay 17 protein sources for methionine and tryptophan availability withS. zymogenes. Pronase was used as the predigesting enzyme. Product composition was found to affect reproducibility. The microbial assay results correlated positively with results from rat growth studies on the same foods (p=0.05), and were generally accurate in identifying products of lower protein quality. Defatting four high-fat products increased microbial values in the methionine assay, but only the chicken franks and the sausage values in the tryptophan assay. Heating non-fat milk increased methionine values slightly. Low values for rolled oats were further reduced by finer grinding.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01092408
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  • 6
    Electronic Resource
    Electronic Resource
    Kinetics of the solvolysis oftrans-dichlorotetra-(4-t-butylpyridine)-cobalt(III) ions in water +t-butyl alcohol mixtures (1990)
    Springer
    Journal of solution chemistry 19 (1990), S. 1073-1084 
    Details
    ISSN: 1572-8927
    Keywords: Solvolysis ; kinetics ; mixtures of water+cosolvent
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Rates of solvolysis of the complex cation [Co(4tBupy)4Cl2]+ have been determined in mixtures of water with the hydrophobic solvent, t-butyl alcohol. The solvent composition at which the extremum is found in the variation of the enthalpy ΔH* and the entropy ΔS* of activation correlates well with the extremum in the variation of the relative partial molar volume of t-butyl alcohol in the mixture and the straight line found for the variation of ΔH* with ΔS* is coincident with the same plot for water + 2-propanol mixtures. A free energy cycle is applied to the process initial state (C n+) going to the transition state [M(n+1)+...Cl−] in water and in the mixture using free energies of transfer of the individual ionic species, ΔG t o (i), from water into the mixture. Values for ΔG t o (i) are derived from the solvent sorting method and from the TATB/TPTB method: using data from either method, changes in solvent structure on going from water into the mixture are found to stabilize the cation in the transition state, M(n+1)+, more than in the initial state, C n+. This is compared with the application of the free energy cycle to the solvolysis of complexes [Co(Rpy)4Cl2]+ and [Coen2LCl]+ in mixtures of water with methanol, 2-propanol or t-butyl alcohol: the above conclusion regarding the relative stabilization of the cations holds for all these complexes in their solvolyses in water+alcohol mixtures using values of ΔG t o (Cl−) from either source.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00649452
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  • 7
    Electronic Resource
    Electronic Resource
    Localization and quantity of hyaluronan in urogenital organs of male and female rats (1995)
    Springer
    Cell & tissue research 279 (1995), S. 241-248 
    Details
    ISSN: 1432-0878
    Keywords: Key words: Hyaluronan ; Hyaluronic acid-binding protein ; Microwave fixation ; Histochemistry ; Urogenital tract ; Reproductive organs ; Rat (Sprague Dawley)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. The histochemical distribution of hyaluronan was analysed in various urogenital organs of male and female (non-pregnant and pregnant) rats by use of a hyaluronan-binding protein and avidin biotin/peroxidase staining. Microwave-aided fixation was used to preserve the extracellular location of hyaluronan. The concentrations of hyaluronan in the different tissues were measured with a highly sensitive radio-assay. Hyaluronan accumulated predominantly in the connective tissue around smooth muscle fibres and in the subepithelial lamina propria. Abundant hyaluronan also occurred in perivascular and perineural connective tissue. In the female urogenital organs, hyaluronan content was high in the vagina and urinary bladder, and highest in the vagina during pregnancy. In the uterus, the surface epithelium of the endometrium stained intensely. In the ovary, the zona pellucida of the oocyte and the theca interna cell layer of the follicles and the follicular fluid of mature follicles exhibited prominent staining. The corpus luteum was devoid of hyaluronan, whereas enlarged corpora lutea of pregnancy exhibited weak, patchy staining. In male urogenital organs, staining for hyaluronan was absent from the testis and epididymis, whereas the erectile connective tissue of the penis stained intensely. The hyaluronan concentrations were high in penile tissue and urinary bladder, while testis, epididymis and the ductus deferens contained only little hyaluronan.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004410050279
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  • 8
    Electronic Resource
    Electronic Resource
    Localization and quantity of hyaluronan in urogenital organs of male and female rats (1995)
    Springer
    Cell & tissue research 279 (1995), S. 241-248 
    Details
    ISSN: 1432-0878
    Keywords: Hyaluronan ; Hyaluronic acid-binding protein ; Microwaye fixation ; Histochemistry ; Urogenital tract ; Reproductive organs ; Rat (Sprague Dawley)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The histochemical distribution of hyaluronan was analysed in various urogenital organs of male and female (non-pregnant and pregnant) rats by use of a hyaluronan-binding protein and avidin biotin/peroxidase staining. Microwave-aided fixation was used to preserve the extracellular location of hyaluronan. The concentrations of hyaluronan in the different tissues were measured with a highly sensitive radio-assay. Hyaluronan accumulated predominantly in the connective tissue around smooth muscle fibres and in the subepithelial lamina propria. Abundant hyaluronan also occurred in perivascular and perineural connective tissue. In the female urogenital organs, hyaluronan content was high in the vagina and urinary bladder, and highest in the vagina during pregnancy. In the uterus, the surface epithelium of the endometrium stained intensely. In the ovary, the zona pellucida of the oocyte and the theca interna cell layer of the follicles and the follicular fluid of mature follicles exhibited prominent staining. The corpus luteum was devoid of hyaluronan, whereas enlarged corpora lutea of pregnancy exhibited weak, patchy staining. In male urogenital organs, staining for hyaluronan was absent from the testis and epididymis, whereas the erectile connective tissue of the penis stained intensely. The hyaluronan concentrations were high in penile tissue and urinary bladder, while testis, epididymis and the ductus deferens contained only little hyaluronan.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00318480
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