Search results: 2,751 results (approx.)

3. A new set of substrates proposed for community characterization in environmental samples.

Substrates available in the BIOLOG® multisubstrate plates (96 well, 31 substrates) designed for testing of environmental samples are listed.

Author(s) : Insam, H.

Publisher : Springer-Verlag, Berlin, Germany

Book chapter : Microbial communities: functional versus structural approaches. 1997 pp.259-260 ref.5

4. Quantifying the metabolic activity of microbes in soil.

A protocol for determining the total microbial activity (microbial respiration) in soil. The headings in this chapter are as follows: soil preparation, procedure, reagents, and discussion.

Author(s) : Stotzky, G.

Publisher : American Society for Microbiology (ASM), Washington, USA

Book chapter : Manual of environmental microbiology. 1997 pp.453-458 ref.21

5. Determining the terminal electron-accepting reaction in the saturated subsurface.

Author(s) : Smith, R. L.

Publisher : American Society for Microbiology (ASM), Washington, USA

Book chapter : Manual of environmental microbiology. 1997 pp.577-585 ref.56

8. Hemolymph proteins and molting in crustaceans and insects.

The exoskeleton of crustaceans and insects is formed by cells of the hypodermis, but several haemolymph proteins contribute to the synthesis of the new exoskeleton. These haemolymph proteins share a surprising degree of sequence similarity and are members of the haemocyanin gene family....

Author(s) : Terwilliger, N. B.

Conference paper; Journal article : American Zoologist 1999 Vol.39 No.3 pp.589-599 ref.3 pp. of

9. Pyruvate decarboxylase filaments are associated with the cortical cytoskeleton of asci and spores over the sexual cycle of filamentous ascomycetes.

The cellular arrangement of pyruvate decarboxylase (PDC) filaments during sexual development of Neurospora crassa, N. tetraesperma, Podospora anserina and Sordaria macrospora was studied. PDC-filaments were associated with the cortical microtubule array of asci and ascospores and absent from the...

Author(s) : Thompson-Coffe, C.; Borioloi, G.; Zickler, D.; Rosa, A. L.

Journal article : Fungal Genetics and Biology 1999 Vol.26 No.1 pp.71-80 ref.28

10. Seasonal variation in plasma prolactin response to smallcap˜D-fenfluramine in healthy subjects.

Prolactin (PRL) response to the specific serotonergic agent smallcap˜D-fenfluramine (smallcap˜D-FEN) in the different seasons of the year was investigated in order to assess a seasonal variation in the functioning of the central serotonin (5-HT) system. The seasons were winter (December 21-March...

Author(s) : Monteleone, P.; Rocca, A. la; Fuschino, A.; Bortolotti, F.; Maj, M.

Journal article : Psychoneuroendocrinology 1999 Vol.24 No.2 pp.201-208 ref.25

11. Glycodelin and β-lactoglobulin, lipocalins with a high structural similarity, differ in ligand binding properties.

Human glycodelin, a lipocalin with a high amino acid similarity to β-lactoglobulins, appears as various glycoforms with different biological activities in endometrium (glycodelin-A) and seminal plasma (glycodelin-S). The structures of these glycodelins and β-lactoglobulin were found to be similar....

Author(s) : Koistinen, H.; Koistinen, R.; Seppälä, M.; Burova, T. V.; Choiset, Y.; Haertlé, T.

Journal article : FEBS Letters 1999 Vol.450 No.1/2 pp.158-162 ref.39

12. Receptor-mediated transcytosis of lactoferrin through the blood-brain barrier.

An in vitro model of the blood-brain barrier was used to examine the mechanism of lactoferrin (Lf) transport to the brain. Differentiated bovine brain capillary endothelial cells exhibited specific high (Kd = 37.5 nM; n = 90,000/cell) and low (Kd = 2 µM; n = 900,000 sites/cell) affinity binding...

Author(s) : Fillebeen, C.; Descamps, L.; Dehouck, M. P.; Fenart, L.; Benaïssa, M.; Spik, G.; Cecchelli, R.; Pierce, A.

Journal article : Journal of Biological Chemistry 1999 Vol.274 No.11 pp.7011-7017 ref.62

13. Dynamics of stimulus-expression coupling as revealed by monitoring of prolactin promoter-driven reporter activity in individual, living mammotropes.

Single-cell paradigms have greatly expanded knowledge of stimulus-secretion coupling, but the understanding of stimulus-gene expression coupling has lagged behind for lack of a dynamic model sufficiently sensitive to provide single-cell resolution. In this study, continuous indirect measurements...

Author(s) : Villalobos, C.; Faught, W. J.; Frawley, L. S.

Journal article : Molecular Endocrinology 1999 Vol.13 No.10 pp.1718-1727 ref.25

14. An automated method for the detection of staphylococcal heat stable deoxyribonuclease in dairy products.

A highly-sensitive automated immunoassay method (VIDAS test) for detection of heat-stable staphylococcal deoxyribonuclease (DNase) in milk products is described and compared with the IDF standard method. The VIDAS test was evaluated using milk products that had been inoculated with known amounts of ...

Author(s) : Meyrand, A.; Atrache, V.; Bavai, C.; Montet, M. P.; Vernozy-Rozand, C.

Journal article : Letters in Applied Microbiology 1999 Vol.29 No.4 pp.216-220 ref.19

15. ClpP participates in the degradation of misfolded protein in Lactococcus lactis.

The expression of the clpP gene in Lactococcus lactis was investigated. The clpP gene was shown to encode a 22-kDa protein induced by low pH and by a transfer RNA analogue puromycin, which interfered with translation, resulting in the production of misfolded puromycyl-containing peptides. Northern...

Author(s) : Frees, D.; Ingmer, H.

Journal article : Molecular Microbiology 1999 Vol.31 No.1 pp.79-87 ref.45

16. Significance of A1 and A2 antibodies against β-casein in insulin-dependent diabetes mellitus.

The hypothesis that cow milk components may constitute environmental factors in the pathogenesis of insulin-dependent diabetes mellitus (IDDM) is increasingly gaining in importance. This study examined antibodies against the most common variants of β-casein (A1 and A2). A total of 1257 sera from...

Foreign Title :Wertigkeit von A1- und A2-Antikörpern gegen β-Kasein beim Typ-1-Diabetes mellitus.

Author(s) : Padberg, S.; Schumm-Draeger, P. M.; Petzoldt, R.; Becker, F.; Federlin, K.

Journal article : Deutsche Medizinische Wochenschrift 1999 Vol.124 No.50 pp.1518-1521 ref.27

17. Monoclonal antibodies to progesterone: characterization and selection for enzyme immunoassay in bovine milk.

31 stabile murine monoclonal antibody (MAb) producing cell lines to progesterone were generated by using a short and a long immunization protocol. Long-term immunization with high doses of 11α-hydroxyprogesterone-hemisuccinate-bovine serum albumin (11α-OH-P-HS-BSA) antigen led to very good antibody ...

Author(s) : Waldmann, A.

Journal article : Hybridoma 1999 Vol.18 No.3 pp.289-296 ref.41

18. Endocrine and metabolic aspects in milk-fed calves.

This review covers: (1) the metabolic and endocrine aspects in neonatal calves (effects of colostrum intake and of ingested hormones and growth factors on the gastrointestinal (GI) tract, metabolic changes during the neonatal period, endocrine traits (insulin, glucagon, cortisol, thyroid hormones,...

Author(s) : Blum, J. W.; Hammon, H.

Conference paper; Journal article : Domestic Animal Endocrinology 1999 Vol.17 No.2/3 pp.219-230 ref.71

19. Timp-1 is important for epithelial proliferation and branching morphogenesis during mouse mammary development.

This study investigated the role of tissue inhibitors of metalloproteinases in mammary morphogenesis, and examined expression of all these inhibitors (1-4) during the development of mouse mammary glands. mRNA of these inhibitors was abundant in mammary tissue and each mRNA showed differential...

Author(s) : Fata, J. E.; Leco, K. J.; Moorehead, R. A.; Martin, D. C.; Rama Khokha

Journal article : Developmental Biology 1999 Vol.211 No.2 pp.238-254 ref.3 pp. of

20. Exocellular polysaccharide produced by Streptococcus thermophilus.

An exocellular polysaccharide produced by a strain of Streptococcus thermophilus was purified from the medium by precipitation with ethanol, ion-exchange chromatography and gel filtration. The polysaccharide contained D-galactose and L-rhamnose as elucidated by its methanolysis and had a...

Author(s) : Urashima, T.; Ariga, H.; Saito, T.; Nakamura, T.; Tanaka, S.; Arai, I.

Journal article : Milchwissenschaft 1999 Vol.54 No.4 pp.190-193 ref.13

21. Inhibitors of complement activity in human breast-milk: a proposed hypothesis of their physiological significance.

Several natural components abundant in the fluid phase of human milk have been shown to be inhibitors of complement activation in vitro, particularly the classical pathway. These include lysozyme, lactoferrin, α-lactalbumin and other ligand chelators, complement regulator proteins and other...

Author(s) : Ogundele, M. O.

Journal article : Mediators of Inflammation 1999 Vol.8 No.2 pp.69-75 ref.44

23. Segregation of steroid receptor coactivator-1 from steroid receptors in mammary epithelium.

The expression of oestrogen receptorα (ORα) and steroid receptor co-activator-1 (SRC-1) in the mammary gland of the rat was examined by immunohistochemistry in order to determine their precise location. The expression of ORα and SRC-1 was found to be segregated in distinct subsets of cells within...

Author(s) : Shim WooShin; DiRenzo, J.; DeCaprio, J. A.; Santen, R. J.; Brown, M.; Jeng MeeiHuey

Journal article : Proceedings of the National Academy of Sciences of the United States of America 1999 Vol.96 No.1 pp.208-213 ref.40

24. Insulin-induced up-regulation of lipoprotein lipase messenger ribonucleic acid and activity in mammary gland.

The effects of insulin on lipoprotein lipase (LPL) messenger RNA (mRNA) were studied in mammary glands from virgin and late-pregnant rats. Virgin and pregnant rats (at 17 days of gestation) were subjected to a continuous infusion (35 ml/day) with 50% glucose for 72 h to produce a prolonged...

Author(s) : Ramos, P.; Martín Hidalgo, A.; Herrera, E.

Journal article : Endocrinology (Philadelphia) 1999 Vol.140 No.3 pp.1089-1093 ref.33

25. Biorobots: from insects to fleas.

The development of biorobots and cyberinsects, using insects such as Bombyx mori, to study the neurophysiology of insects, behavioural neuroscience and microrobot development, is discussed. Applications of this technique to the artificial control of insects, neurocybernetic research and...

Foreign Title :Les biorobots: des insectes à puces.

Author(s) : Triendl, R.

Journal article : Biofutur 1999 No.No. 189 pp.34-37 ref.13