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  • 1
    Electronic Resource
    Electronic Resource
    Bone mass peak and incidence of osteoporosis and the Spanish civil war (1992)
    Springer
    Calcified tissue international 50 (1992), S. 104-104 
    Details
    ISSN: 1432-0827
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00298782
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  • 2
    Electronic Resource
    Electronic Resource
    Sex differences in the acquisition of total bone mineral mass peak assessed through dual-energy X-ray absorptiometry (1992)
    Springer
    Calcified tissue international 51 (1992), S. 251-254 
    Details
    ISSN: 1432-0827
    Keywords: Bone mass peak ; Bone densitometry ; Sex differences
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary Dual energy X-ray absorptiometry evaluation of total body bone mineral content (TBBM), total bone mineral density (TBMD), and regional bone mineral content (BMC) (head, trunk, arms, and legs) was carried out in order to assess sex differences of bone in 120 women and 121 men aged 15–29 years. Subjects from both sexes were divided into 5-year groups (15 through 19, 20 through 24, and 25 through 29 years old, respectively). Significantly higher values for TBBM, TBMD, and regional BMC were observed in males compared with females in the 20 to 24 and 25 to 29-year-old groups (P〈0.001), but not in the group aged 15–19. After adjusting TBBM for lean body mass (LBM), we observed significantly lower values of TBBM/LBM in the males compared with females in all the age groups. A positive and significant correlation was observed between TBBM and age in the males of all the groups (r=0.624, P〈0.001), but not in the females. These data suggest that total bone mass peak acquisition takes place earlier in women than in men, leading to more reduced bone mass value, which in turn may be an osteoporosis predisposing factor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00334483
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  • 3
    Electronic Resource
    Electronic Resource
    Biochemical markers of nutrition in osteoporosis (1993)
    Springer
    Calcified tissue international 52 (1993), S. 331-333 
    Details
    ISSN: 1432-0827
    Keywords: Osteoporosis ; Nutrition ; Biochemical markers ; Crush fracture syndrome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary Thirty-six women with vertebral osteoporosis showed significantly decreased levels of biochemical markers of nutrition, transferrin (P〈0.001), prealbumin (P〈0.001), retinol binding-protein (P〈0.001), and fibronectin (P〈0.001), compared with 40 healthy women of similar age. Multiple regression analysis showed a significant (R2=0.509; P=0.0068) correlation between bone mineral content and biochemical markers of nutrition in the osteoporotic patients but not in the control group. These data suggest that postmenopausal osteoporosis may be associated with a nutritional deficiency.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00296660
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  • 4
    Electronic Resource
    Electronic Resource
    Total and regional bone mineral content in women treated with GnRH agonists (1993)
    Springer
    Calcified tissue international 52 (1993), S. 354-357 
    Details
    ISSN: 1432-0827
    Keywords: GNRH agonists ; Bone mineral content ; Total, regional bone mineral content ; Tartrate-resistant acid phosphatase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary Changes in bone mineral content induced by GnRH agonists were investigated by measuring total body bone mineral content (TBBM) and regional bone mineral content (BMC) (arms, legs, trunk, pelvis) and densities with dual energy X-ray absorptiometry in 25 premenopausal women before and after a 6-month treatment with gonadotropin-releasing hormone (GnRH) agonists. Biological markers of bone remodeling, estrogens, luteinizing hormone, and follicle-stimulating hormone were also measured. Weight and body mass index increased significantly after treatment (P〈0.05), and TBBM, corrected for weight (TBBM/W), decreased (P〈0.001). The changes in BMC that we observed ranged from +2.5% to -6.9%. The greatest decrease in regional BMC occurred in the trunk (4.4%, P〈0.001), with TBBM decreasing by 2.1% (P〈0.001). No significant changes were observed in the limbs. Tartrate-resistant acid phosphatase (TRAP) increased significantly after treatment (P〈0.001) and a significant negative correlation between TRAP and TBBM (P〈0.001) and between TRAP and estradiol (P〈0.001) were observed before treatment. The lack of changes observed in the BMC of the limbs indicate that GnRH agonists cause a preferential loss of BMC in trunk osseous structures, a situation similar to that of the first years of menopause.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00310198
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  • 5
    Electronic Resource
    Electronic Resource
    Cell wall mannoproteins during the population growth phases in Saccharomyces cerevisiae (1987)
    Springer
    Archives of microbiology 148 (1987), S. 88-94 
    Details
    ISSN: 1432-072X
    Keywords: Saccharomyces cerevisiae ; Mannoproteins ; Glucan ; Cell wall ; Population growth cycle
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Mannoproteins from cell walls of Saccharomyces cerevisiae synthesized at successive stages of the population growth cycle have been solubilized with Zymolyase and subsequently analyzed. The major change along the population cycle concerned a large size mannoprotein material; the size of the newly-synthesized molecules varied from 120,000–500,000 (mean of about 200,000) at early exponential phase to 250,000–350,000 (mean of about 300,000) at late exponential phase. These differences are due to modifications in the amount of N-glycosidically linked mannose residues, since the size of the peptide moiety was 90,000–100,000 at all growth stages and the level of O-glycosylation changed only slightly. After, incubation of the purified walls with concanavalin A-ferritin and subsequent analysis by electron microscopy, labelling was localized at the external and internal faces of the walls. The middle space of these was labelled after digestion of the glucan network with Zymolyase, which demonstrate the presence of mannoproteins in close contact with the structural glucan molecules throughout the wall.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00425354
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  • 6
    Electronic Resource
    Electronic Resource
    Characterization of a Schizosaccharomyces pombe morphological mutant altered in the galactomannan content (1991)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 79 (1991), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: In a search for Schizosaccharomyces pombe mutants resistant to the antifungal agent papulacandin B, a morphological mutant was isolated. The mutant is round shaped in contrast to the rod shaped parental strain. This morphological defect segregated as a recessive Mendelian character and was not observed in other papulacandin B resistant mutants belonging to the same complementation group. The mutation mapped in the right arm of S. pombe chromosome III very close to papl marker. Mutant cell walls were more susceptible to alkali extraction and Novozyme degradation than those from the wild-type. A specific reduction in the cell wall galactomannan fraction was the only significant difference detected as compared to the wild-type strain. Levels of β(1,3)-glucan and mannan synthases as well as other enzymic periplasmic mannoproteins were very similar in wild type and mutant strains.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1991.tb04539.x
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  • 7
    Electronic Resource
    Electronic Resource
    INCIDENCE OF STAPHYLOCOCCUS AUREUS IN MEALS FROM CAFETERIAS (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food safety 22 (2002), S. 0 
    Details
    ISSN: 1745-4565
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A study to determine the incidence of Staphylococccus aureus in 705 meals from several cafeterias in Valencia, Spain was undertaken. Out of the 705 studied meals, 81 samples (11.1%) had coagulase positive staphylococci with a range of S. aureus from 100 to 53000 cfu/g. The four highest values (〉 10,000 S. aureus cfu/g) were obtained with Russian type salad, meatballs, chicken croquettes and salad. These products involved more handling stages. These data show that food handlers may contribute to food poisoning and that there are some handling practices that require more attention.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-4565.2002.tb00336.x
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  • 8
    Electronic Resource
    Electronic Resource
    Abnormal formation of Candida albicans walls produced by Calcofluor white: An ultrastructural and stereologic study
    Amsterdam : Elsevier
    Experimental Mycology 9 (1985), S. 1-53 
    Details
    ISSN: 0147-5975
    Keywords: [idt] Calcofluor white ; [idt] Candida albicans ; [idt] cell wall ; [idt] stereology ; [idt] ultrastructure
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0147-5975(85)90020-9
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  • 9
    Electronic Resource
    Electronic Resource
    Influence of weight and seasonal changes on radiogrammetry and bone densitometry (1994)
    Springer
    Calcified tissue international 54 (1994), S. 385-388 
    Details
    ISSN: 1432-0827
    Keywords: Bone mass ; Seasonal bone changes ; Metacarpal morphometry ; Computed radiogrammetry ; Body weight ; Bone densitometry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Abstract We studied the behavior of radiogrammetric and densitometric measurements in relation to season and body weight in a group of 30 healthy premenopausal women. Measurements were made at 6-month intervals, in summer/fall when bone density increases and in winter/spring when bone density declines. Total body bone mineral content (TBBMC) and regional bone mineral content (RBMC) were measured using dual-energy X-ray absorptiometry (DXA). Metacarpal radiogrammetry was carried out with computed radiography. Weight and body mass index increased significantly in winter (P〈0.05) and total body and RBMC decreased (P〈0.001). The opposite occurred in summer: weight and body mass index decreased significantly (P〈0.05) and total body and regional bone mineral content increased (P〈0.001). Differences in TBBMC persisted when the measurement was corrected for weight (TBBMC/W) (P〈0.001), but not for metacarpal cortical thickness corrected for weight. In the first measurement made there were significant relations between weight and both TBBMC (P〈0.001) and metacarpal cortical thickness (P〈0.005). The relation between weight and TBBMC remained significant in later measurements, but the relation between weight and metacarpal cortical thickness ceased to be significant in the second and fourth measurements. Our results show that there is an important seasonal variation in bone mass and that DXA is more sensitive than radiogrammetry in registering these changes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00305524
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  • 10
    Electronic Resource
    Electronic Resource
    Cortical versus trabecular bone mass: Influence of activity on both bone components (1994)
    Springer
    Calcified tissue international 54 (1994), S. 470-472 
    Details
    ISSN: 1432-0827
    Keywords: Exercise ; Activity ; Bone mass ; Bone to-modensitometry ; Trabecular bone ; Cortical bone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Abstract Motivated by the controversy in the literature concerning the influence of activity on bone mass and on its cortical and trabecular components, a study was made using computed peripheral tomography (Stratec XCT 900) of the total, cortical, and trabecular bone mass of the dominant and nondominant upper extremities of 50 apparently normal subjects (average age 26±6 years). No differences were observed in the trabecular bone compartment, but the cortical compartment was greater (P〈0.001) in the dominant extremity. There was also a significantly greater total bone mass in the dominant extremity which we attributed to greater cortical mass (P〈0.025) given the highly significant correlation (r2=0.904, P=0.0001) between total and cortical bone mass and the less significant correlation between total and trabecular bone mass (r2=0.479, P=0.0001).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00334325
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