Artículos de revistas: "Bovine growth"

1

Lonergan, P. "Growth of Preimplatation Bovine Embryos". Acta Veterinaria Scandinavica 35, n.º 4 (diciembre de 1994): 307–20. http://dx.doi.org/10.1186/bf03548303.

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2

BONINO, M. J. BISCOGLIO DE JIMENEZ, O. CASCONE y J. A. SANTOMÉ. "TRINITROPHENYLATION OF BOVINE GROWTH HORMONE". International Journal of Peptide and Protein Research 14, n.º 2 (12 de enero de 2009): 107–12. http://dx.doi.org/10.1111/j.1399-3011.1979.tb01733.x.

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3

FUKUSHIMA, J. G., M. J. BISCOGLIO DE JIMENEZ BONINO, O. CASCONE y J. A. SANTOMÉ. "Ethoxyformylation of bovine growth hormone". International Journal of Peptide and Protein Research 21, n.º 4 (12 de enero de 2009): 451–57. http://dx.doi.org/10.1111/j.1399-3011.1983.tb03126.x.

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4

Ahmad, SyedRizwanuddin. "USA: Bovine growth hormone update". Lancet 340, n.º 8822 (septiembre de 1992): 782. http://dx.doi.org/10.1016/0140-6736(92)92313-5.

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5

Baird, Andre, Frederick S. Esch, Peter Bohlen, Deni Gospodarowicz y Nicholas C. Ling. "4956455 Bovine fibroblast growth factor". Progress in Growth Factor Research 2, n.º 4 (enero de 1990): 249. http://dx.doi.org/10.1016/0955-2235(90)90022-c.

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6

Ahmad, SyedRizwanuddin y Vivien Choo. "Bovine growth hormone and mastitis". Lancet 341, n.º 8851 (abril de 1993): 1018–19. http://dx.doi.org/10.1016/0140-6736(93)91098-7.

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7

Gabinaitiene, A., J. Siugzdaite, H. Zilinskas, R. Siugzda y S. Petkevicius. "Mycoplasma bovis and bacterial pathogens in the bovine respiratory tract". Veterinární Medicína 56, No. 1 (8 de febrero de 2011): 29–35. http://dx.doi.org/10.17221/1572-vetmed.

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Bovine respiratory disease caused by Mycoplasma bovis is a major health problem of cattle worldwide. It inflicts considerable financial losses on beef herds and is the most common cause of mortality in dairy cattle. Bacteriological examination of 35 nasal cavity samples from calves younger than three months of age identified Mycoplasma bovis in eight (22.9%) samples. These cattle were followed until 17 months of age, and repeated examination of nasal cavity samples before necropsy identified Mycoplasma bovis in four (11.4%) samples. At necropsy and lung samples for bacteriological and histological examination were collected. To identify microorganisms from the Mollicutes class isolated from the nasal cavities of cattle we used the PCR method. Furthermore, Mycoplasma bovis was identified on the grounds of biochemical characteristics and by the disk growth inhibition test. The organism was found in 5.7% of calves younger than three months of age in combination with Pasteurella spp. Mycoplasma bovis in combination with Pasteurella multocida and Mannheimia haemolytica was isolated from 5.7% and 2.9% of cattle at 17 months. However, Pasteurella multocida was common in cattle at 17 months and Mannheimia haemolytica was isolated from both age groups of cattle. Histopathological examination of lung samples revealed broncho-interstitial pneumonia in 14.3% of samples. Mycoplasma bovis was isolated from 60.0% of broncho-insterstitial pneumonia cases. The organism was isolated more frequently from the group of calves rather than from the cattle group (P < 0.05). The most common bacterial agents were Pasteurella multocida and Mannheimia haemolytica.

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8

Burton, Jeanne L., Brian W. McBride, Elliot Block, David R. Glimm y John J. Kennelly. "A review of bovine growth hormone". Canadian Journal of Animal Science 74, n.º 2 (1 de junio de 1994): 167–201. http://dx.doi.org/10.4141/cjas94-027.

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Unprecedented numbers of technical papers, abstracts, and short communications have been published in the past decade regarding the effects of exogenous bovine growth hormone on milk production, health, and reproductive efficiency of treated dairy cows. In well-managed dairy herds, exogenous growth hormone increases milk production without altering normal variability in milk composition. This has held true regardless of dairy breed tested, geographical location studied, or feeding management system used. Also consistent across studies is the rapidity of the galactopoietic effect of administered bovine growth hormone, which arises from altered partitioning and use of post-absorptive nutrients and increased synthetic capacity of the mammary gland. Growth hormone and its associated peptide, insulin-like growth factor-I, are now known to provide chronic lipolytic, diabetogenic, and gluconeogenic signals to target tissues culminating in increased mammary gland availability of glucose and nonesterified fatty acids. Together with yet ill-defined effects on mammary secretory tissue, this homeorhetic control of metabolism elicited by exogenous growth hormone is so efficient that treated cows are not more susceptible to metabolic disorders than untreated cows. However, some studies have reported an increased frequency of mastitis in groups of treated cows. This has been attributed mainly to increased milk volume in the mammary glands of treated cows and no convincing data are available that show decreased mammary gland immunity as a result of growth hormone treatments. On the contrary, an expanding body of evidence implicates growth hormone as a key neuroendocrine factor that is required for immunological competence. Trends of decreased reproductive efficiency in cows treated with growth hormone have also been reported, but available data imply that this is probably an indirect effect via prolonged negative energy balance in cows treated in early lactation rather than a direct negative effect on estrous cycling via altered reproductive hormone profiles. The objectives of the present review are to bring into focus and summarize pertinent biological discoveries regarding the treatment of dairy cows with recombinant bovine growth hormone, and to explore areas where additional growth hormone research is needed or warranted. Key words: Growth hormone, somatotropin, dairy cows, insulin-like growth factor-I

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9

Karpatkin, R. H. y E. Groth. "Another look at bovine growth hormone." Environmental Health Perspectives 102, n.º 12 (diciembre de 1994): 1006. http://dx.doi.org/10.1289/ehp.941021006a.

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10

Hart-Elcock, Laura, R. D. Baker y H. W. Leipold. "Growth of the Early Bovine Fetus". Journal of Veterinary Medicine Series A 37, n.º 1-10 (12 de febrero de 1990): 294–99. http://dx.doi.org/10.1111/j.1439-0442.1990.tb00908.x.

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11

HILEMAN, BETTE. "Panel okays disputed bovine growth hormone". Chemical & Engineering News 68, n.º 51 (17 de diciembre de 1990): 6. http://dx.doi.org/10.1021/cen-v068n051.p006.

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12

Sibbison, J. B. "USA: Safety of bovine growth hormone". Lancet 338, n.º 8781 (diciembre de 1991): 1513. http://dx.doi.org/10.1016/0140-6736(91)92316-t.

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13

Gibbons, A. "FDA publishes bovine growth hormone data". Science 249, n.º 4971 (24 de agosto de 1990): 852–53. http://dx.doi.org/10.1126/science.2392676.

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14

Toutain, P. L., D. Schams, M. P. Laurentie y T. D. Thomson. "Pharmacokinetics of a recombinant bovine growth hormone and pituitary bovine growth hormone in lactating dairy cows". Journal of Animal Science 71, n.º 5 (1 de mayo de 1993): 1219–25. http://dx.doi.org/10.2527/1993.7151219x.

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15

Alexieva, B., Tz Markova y E. Nikolova. "bovine colostrum – the promising nutraceutical". Czech Journal of Food Sciences 22, No. 2 (16 de noviembre de 2011): 73–79. http://dx.doi.org/10.17221/3409-cjfs.

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Colostrum is the first milk produced after birth and is particularly rich in immunoglobulins, antimicrobial peptides, and growth factors. It is important for the nutrition, growth, and development of newborn infants and contributes to the immunologic defence of neonates. Recent studies suggest that bovine colostrum or some of its constituents may be useful for the prevention and, to some extent, for the treatment of various infectious diseases. A variety of colostral based preparations have been used as feed supplements or colostrum substitutes for neonate calves and pigs. Numerous recent studies suggest that oral administration of bovine colostrum preparations may contribute to human health care both as part of health promoting diet and as an alternative or a supplement to the medical treatment of specified human diseases.  

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16

Schreiber, A. B., J. Kenney, J. Kowalski, K. A. Thomas, G. Gimenez-Gallego, M. Rios-Candelore, J. Di Salvo, D. Barritault, J. Courty y Y. Courtois. "A unique family of endothelial cell polypeptide mitogens: the antigenic and receptor cross-reactivity of bovine endothelial cell growth factor, brain-derived acidic fibroblast growth factor, and eye-derived growth factor-II." Journal of Cell Biology 101, n.º 4 (1 de octubre de 1985): 1623–26. http://dx.doi.org/10.1083/jcb.101.4.1623.

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Bovine brain, hypothalamus, pituitary, and retina contain potent anionic polypeptide mitogens for endothelial cells. Immunological assays using murine monoclonal antibodies against bovine endothelial cell growth factor (ECGF) and radioreceptor assays using [125I]ECGF were performed to determine the cross-reactivity of ECGF with bovine acidic pI brain-derived fibroblast growth factor (acidic FGF) and bovine eye-derived growth factor-II [EDGF-II). We observed that acidic FGF and EDGF-II are recognized by anti-ECGF monoclonal antibodies and compete with [125I] ECGF for receptor occupancy. Furthermore, the biological activity of ECGF, acidic FGF, and EDGF-II is potentiated by the glycosaminoglycan, heparin. These results argue that ECGF, acidic FGF, and EDGF-II belong to a common family of polypeptide growth factors.

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17

Zhu, H. B., D. Z. Guo, S. J. Yang, Y. H. Zhang, H. Wang, H. T. Guo, Y. Zhang y D. C. Cheng. "Osteogenic actions of the osteogenic growth peptide on bovine marrow mesenchymal stromal cells in culture". Veterinární Medicína 53, No. 9 (16 de octubre de 2008): 501–9. http://dx.doi.org/10.17221/1981-vetmed.

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The osteogenic growth peptide (OGP) regulates the differentiation of marrow mesenchymal stem cells derived from human and rodent cell lines into osteoblasts. Whether OGP directly regulates the bovine marrow mesenchymal stem cells differentiating into osteoblasts remains unknown. In this study, we evaluated the effects of OGP on the growth and differentiation of bovine marrow mesenchymal stem cells in culture. Our results showed that OGP promoted osteogenic differentiation of the bovine stem cells. OGP increased alkaline phosphatase (ALP) activity and mineralized nodule formation, and stimulated osteoblast-specific mRNA expression of Osteocalcin (BGP). On the other hand, OGP dose-dependently stimulated the expression of endothelial nitric oxide synthases. These results show for the first time a direct osteogenic effect of OGP on bovine marrow stromal cells in culture, which could be mediated by induction of endothelial nitric oxide synthases.

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18

Stanislavovich, Tatiana, T. I. KUZMINA y Aleksey Molchanov. "Assessment of the destructive processes of chromatin of granulosa cells and functional status of oocyte in bovine ovarian follicles". Agrarian Bulletin of the 191, n.º 12 (9 de diciembre de 2019): 60–64. http://dx.doi.org/10.32417/1997-4868-2019-191-12-60-64.

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Abstract. Currently, there is the possibility of more detailed studies to the study of oocytes and somatic cells (granulosa cells). The possibility to develop successful models of maturation of female gametes defines the possibility to improve existing methods for the selection of donor eggs and the search for new donor eggs. Oocyte maturation in vivo occurs with the participation of structural follicle elements and follicular fluid [3, 4, 6]. Granulosa cells are widely used in bovine oocyte maturation systems and used in cloning and transgenesis technologies [8, 13]. Purpose of this study: to perform destructive changes granulosa cells in ovarian follicles of bovines (Ø 3–5 mm),which contain growing(ВСВ–) or completed the growth phase of oocytes (ВСВ+). Methods: Functional testing of oocytes wascarried out using the vital dye BCB (brillant cresyl blue – diamond crystal blue) [10]. Viability indices in granulosa cells isolated from follicles that contain oocyte s that grow or complete the growth phase were determined by flow cytometry. The result. It was found, that cellsof granulosa from cow follicles are characterized by different indicators of apoptosis levels depending on the status of oocytes (completed growth and growing) isolated from these follicles. The proportion of apoptotic granulosa cells in bovine follicles of containing oocytes that completed the growth phase, exceeded that in follicles containing growing oocytes by 11 % (29 % vs. 18 %, c:dP < 0.05). The scientific novelty: The data obtained using flow cytometry, allow us to evaluate the level of apoptosis in granulosa cells of bovine ovarian follicle as indicator of functional status of developing oocytes (growing or completed growth phases). This indicator can be used in prognosis of competencies for maturation of bovine oocytes.

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19

Bell, J. A., K. Moffat, B. K. Vonderhaar y D. W. Golde. "Crystallization and preliminary x-ray characterization of bovine growth hormone. Purification of bovine prolactin and growth hormone." Journal of Biological Chemistry 260, n.º 14 (julio de 1985): 8520–25. http://dx.doi.org/10.1016/s0021-9258(17)39503-0.

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20

Escobar-Chavarría, Omar, Alejandro Benitez-Guzman, Itzel Jiménez-Vázquez, Jacobo Carrisoza-Urbina, Lourdes Arriaga-Pizano, Sara Huerta-Yépez, Guillermina Baay-Guzmán y José A. Gutiérrez-Pabello. "Necrotic Cell Death and Inflammasome NLRP3 Activity in Mycobacterium bovis-Infected Bovine Macrophages". Cells 12, n.º 16 (17 de agosto de 2023): 2079. http://dx.doi.org/10.3390/cells12162079.

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Mycobacterium bovis is a facultative intracellular bacterium that produces cellular necrosis in granulomatous lesions in bovines. Although M. bovis-induced inflammation actively participates in granuloma development, its role in necrotic cell death and in bovine macrophages has not been fully explored. In this study, we evaluate the effect of M. bovis AN5 and its culture filtrate protein extract (CFPE) on inflammasome activation in bovine macrophages and its consequences on cell death. Our results show that both stimuli induce necrotic cell death starting 4 h after incubation. CFPE treatment and M. bovis infection also induce the maturation of IL-1β (>3000 pg/mL), oligomerization of ASC (apoptosis-associated speck-like protein containing CARD), and activation of caspase-1, following the canonical activation pathway of the NLRP3 inflammasome. Inhibiting the oligomerization of NLRP3 and caspase-1 decreases necrosis among the infected or CFPE-stimulated macrophages. Furthermore, histological lymph node sections of bovines naturally infected with M. bovis contained cleaved gasdermin D, mainly in macrophages and giant cells within the granulomas. Finally, the induction of cell death (apoptosis and pyroptosis) decreased the intracellular bacteria count in the infected bovine macrophages, suggesting that cell death helps to control the intracellular growth of the mycobacteria. Our results indicate that M. bovis induces pyroptosis-like cell death that is partially related to the NLRP3 inflammasome activation and that the cell death process could control bacterial growth.

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21

Greene, E. A. y R. E. Allen. "Growth factor regulation of bovine satellite cell growth in vitro." Journal of Animal Science 69, n.º 1 (1991): 146. http://dx.doi.org/10.2527/1991.691146x.

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22

Huang, Shuan Shian, Ming-Der Kuo y Jung San Huang. "Transforming growth factor activity of bovine brain-derived growth factor". Biochemical and Biophysical Research Communications 139, n.º 2 (septiembre de 1986): 619–25. http://dx.doi.org/10.1016/s0006-291x(86)80035-3.

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23

Read, L. C., F. J. Ballard, G. L. Francis, R. C. Baxter, C. J. Bagley y J. C. Wallace. "Comparative binding of bovine, human and rat insulin-like growth factors to membrane receptors and to antibodies against human insulin-like growth factor-1". Biochemical Journal 233, n.º 1 (1 de enero de 1986): 215–21. http://dx.doi.org/10.1042/bj2330215.

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The immunological properties of human, bovine and rat insulin-like growth factors (IGF) and insulin were compared in competitive binding studies with Tr10 and NPA polyclonal antisera raised in rabbits against human IGF-1. Bovine IGF-1 was 11-19% as effective as human IGF-1 in competing for binding with 125I-labelled human IGF-1, whereas IGF-2 reacted poorly and insulin did not compete. Similar competitive binding curves were obtained with the mouse monoclonal anti-(human IGF-1) antibody 3D1, except that bovine IGF-1 showed a severalfold greater affinity for the monoclonal antibody than for either polyclonal antiserum. Membranes isolated from human placenta, sheep placenta and foetal-human liver were used as sources of cellular receptors. In human placental membranes, most of the binding of IGF-1 tracers could be attributed to a type-1 receptor, because insulin inhibited up to 65% of tracer binding. The other two tissues apparently contain only type-2 receptors, as evidenced by the very low potency of bovine or human IGF-1 in competing for binding with IGF-2 tracers and the absence of any competition by insulin. In competition for binding with labelled bovine or human IGF-1 to human placental membranes, bovine IGF-1 had a similar potency to human IGF-1, whereas bovine IGF-1 was more potent in binding studies with tissues rich in type-2 receptors. Rat IGF-2 was considerably less effective than human IGF-2 in competition for receptors on any of the membrane preparations.

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24

Zhao, X., B. W. McBride, I. Politis, H. T. Huynh, R. M. Akers, J. H. Burton y J. D. Turner. "Receptor binding and growth-promoting activity of insulin-like growth factor-I in a bovine mammary epithelial cell line (MAC-T3)". Journal of Endocrinology 134, n.º 2 (agosto de 1992): 307–12. http://dx.doi.org/10.1677/joe.0.1340307.

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ABSTRACT Insulin-like growth factor-I (IGF-I) has been known to be mitogenic to a variety of cell types, although a growth-regulatory role for IGF-I on bovine mammary epithelial cells has not been fully investigated. In the present study, we examined the receptor binding of IGF-I and its effect on growth in a bovine mammary epithelial cell line (MAC-T3). Specific receptors for IGF-I were detected on cultured bovine mammary epithelial cells. Competitive binding revealed that half-maximal inhibition of 125I-labelled IGF-I binding by IGF-I was approximately 3 μg/l. Dissociation rate constant of the IGF-I receptor was 3·10±0·06 nmol/l (s.e.m.) with a receptor site concentration of 366 ± 8 fmol/mg protein for the average of three experiments. IGF-I exerted a positive mitogenic effect on MAC-T3 cells according to both direct DNA assay and thymidine incorporation assay. Moreover, the mitogenic effect of IGF-I on MAC-T3 cells was enhanced by the addition of fetal calf serum in the culture media. The present results suggest that the bovine mammary epithelial cell line (MAC-T3) provides a useful model system with which to study the biological actions of insulin-like growth factors on the bovine mammary secretory tissue in vitro. Journal of Endocrinology (1992) 134, 307–312

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25

Hampson, R. K., L. La Follette y F. M. Rottman. "Alternative processing of bovine growth hormone mRNA is influenced by downstream exon sequences". Molecular and Cellular Biology 9, n.º 4 (abril de 1989): 1604–10. http://dx.doi.org/10.1128/mcb.9.4.1604-1610.1989.

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In a previous report, we described the presence, in pituitary tissue, of an alternatively processed species of bovine growth hormone mRNA from which the last intron (intron D) has not been removed by splicing (R. K. Hampson and F. M. Rottman, Proc. Natl. Acad. Sci. USA 84:2673-2677, 1987). Using transient expression of the bovine growth hormone gene in Cos I cells, we observed that splicing of intron D was affected by sequences within the downstream exon (exon 5). Deletion of a 115-base-pair FspI-PvuII restriction fragment in exon 5 beginning 73 base pairs downstream of the intron 4-exon 5 junction resulted in cytoplasmic bovine growth hormone mRNA, more than 95% of which retained intron D. This contrasted with less than 5% of the growth hormone mRNA retaining intron D observed with expression of the unaltered gene. Insertion of a 10-base-pair inverted repeat sequence, CTTCCGGAAG, which was located in the middle of this deleted segment, partially reversed this pattern, resulting in cytosolic mRNA from which intron D was predominantly removed. More detailed deletion analysis of this region indicated that multiple sequence elements within the exon 5, in addition to the 10-base-pair inverted repeat sequence, are capable of influencing splicing of intron D. The effect of these exon sequences on splicing of bovine growth hormone precursor mRNA appeared to be specific for the growth hormone intron D. Deletions in exon 5 which resulted in marked alterations in splicing of growth hormone intron D had no effect on splicing when exon 5 of bovine growth hormone was placed downstream of the heterologous bovine prolactin intron D. Deletions in exon 5 which resulted in marked alterations in splicing of growth hormone intron D had no effect on splicing when exon 5 of bovine growth hormone was placed downstream of the heterologous bovine prolactin intron D. The results of this study suggest a unique interaction between sequences located near the center of exon 5 and splicing of the adjacent intron D.

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26

Hampson, R. K., L. La Follette y F. M. Rottman. "Alternative processing of bovine growth hormone mRNA is influenced by downstream exon sequences." Molecular and Cellular Biology 9, n.º 4 (abril de 1989): 1604–10. http://dx.doi.org/10.1128/mcb.9.4.1604.

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In a previous report, we described the presence, in pituitary tissue, of an alternatively processed species of bovine growth hormone mRNA from which the last intron (intron D) has not been removed by splicing (R. K. Hampson and F. M. Rottman, Proc. Natl. Acad. Sci. USA 84:2673-2677, 1987). Using transient expression of the bovine growth hormone gene in Cos I cells, we observed that splicing of intron D was affected by sequences within the downstream exon (exon 5). Deletion of a 115-base-pair FspI-PvuII restriction fragment in exon 5 beginning 73 base pairs downstream of the intron 4-exon 5 junction resulted in cytoplasmic bovine growth hormone mRNA, more than 95% of which retained intron D. This contrasted with less than 5% of the growth hormone mRNA retaining intron D observed with expression of the unaltered gene. Insertion of a 10-base-pair inverted repeat sequence, CTTCCGGAAG, which was located in the middle of this deleted segment, partially reversed this pattern, resulting in cytosolic mRNA from which intron D was predominantly removed. More detailed deletion analysis of this region indicated that multiple sequence elements within the exon 5, in addition to the 10-base-pair inverted repeat sequence, are capable of influencing splicing of intron D. The effect of these exon sequences on splicing of bovine growth hormone precursor mRNA appeared to be specific for the growth hormone intron D. Deletions in exon 5 which resulted in marked alterations in splicing of growth hormone intron D had no effect on splicing when exon 5 of bovine growth hormone was placed downstream of the heterologous bovine prolactin intron D. Deletions in exon 5 which resulted in marked alterations in splicing of growth hormone intron D had no effect on splicing when exon 5 of bovine growth hormone was placed downstream of the heterologous bovine prolactin intron D. The results of this study suggest a unique interaction between sequences located near the center of exon 5 and splicing of the adjacent intron D.

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27

Verma, N. K., R. Sodhi y Y. S. Rajput. "Anti-idiotypic Antibodies against Bovine Growth Hormone". Asian-Australasian Journal of Animal Sciences 16, n.º 5 (1 de enero de 2003): 732–37. http://dx.doi.org/10.5713/ajas.2003.732.

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28

Juskevich, J. y C. Guyer. "Bovine growth hormone: human food safety evaluation". Science 249, n.º 4971 (24 de agosto de 1990): 875–84. http://dx.doi.org/10.1126/science.2203142.

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29

ROH, SANG-GUN, NOBUYOSHI MATSUNAGA, AKIO MIYAMOTO, SATOSHI HIDAKA y HISASHI HIDARI. "Competitive Enzyme Immunoassay for Bovine Growth Hormone." Endocrine Journal 44, n.º 1 (1997): 195–98. http://dx.doi.org/10.1507/endocrj.44.195.

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30

Gershon, Diane. "Bovine growth hormone meets new safety concerns". Nature 358, n.º 6388 (agosto de 1992): 614. http://dx.doi.org/10.1038/358614a0.

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31

MATTERA, RAFAEL, DANIEL TURYN, HORACIO N. FERNANDEZ y JUAN M. DELLACHA. "Structural characterization of iodinated bovine growth hormone". International Journal of Peptide and Protein Research 19, n.º 2 (12 de enero de 2009): 172–80. http://dx.doi.org/10.1111/j.1399-3011.1982.tb02606.x.

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32

WOLFENSTEIN-TODEL, C. y J. A. SANTOMÉ. "Modification of arginines in bovine growth hormone". International Journal of Peptide and Protein Research 22, n.º 5 (12 de enero de 2009): 611–16. http://dx.doi.org/10.1111/j.1399-3011.1983.tb02136.x.

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33

May, J. y G. Orders. "Bovine mammillitis virus growth in human cells". Veterinary Record 133, n.º 6 (7 de agosto de 1993): 148. http://dx.doi.org/10.1136/vr.133.6.148-b.

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34

Munson, Linda, Alice Wilhite, Valerie Boltz y J. Erby Wilkinson. "Transforming Growth Factor β in Bovine Placentas1". Biology of Reproduction 55, n.º 4 (1 de octubre de 1996): 748–55. http://dx.doi.org/10.1095/biolreprod55.4.748.

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35

LIU, QING-MING, MARK C. WILKINSON y JOHN A. SMITH. "A growth factor activity in bovine milk". Biochemical Society Transactions 24, n.º 3 (1 de agosto de 1996): 342S. http://dx.doi.org/10.1042/bst024342s.

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36

HILEMAN, BETTE. "Bovine growth hormone found safe for use". Chemical & Engineering News 69, n.º 19 (13 de mayo de 1991): 7–8. http://dx.doi.org/10.1021/cen-v069n019.p007a.

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37

Schmalz, Gottfried, Helmut Schweikl y Manfred Eibl. "Growth kinetics of fibroblasts on bovine dentin". Journal of Endodontics 20, n.º 9 (septiembre de 1994): 453–56. http://dx.doi.org/10.1016/s0099-2399(06)80037-3.

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38

McCormick, Douglas K. "Bovine Growth Hormone and Pork-Barrel Politics". Nature Biotechnology 11, n.º 9 (septiembre de 1993): 963. http://dx.doi.org/10.1038/nbt0993-963.

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39

Fayer, R. y T. H. Elsasser. "Bovine sarcocystosis: How parasites negatively affect growth". Parasitology Today 7, n.º 9 (enero de 1991): 250–55. http://dx.doi.org/10.1016/0169-4758(91)90242-g.

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40

Watson, Dennis L., Geoffrey L. Francis y F. John Ballard. "Factors in ruminant colostrum that influence cell growth and murine IgE antibody responses". Journal of Dairy Research 59, n.º 3 (agosto de 1992): 369–80. http://dx.doi.org/10.1017/s0022029900030648.

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SummaryBovine colostrum was investigated as a source of biologically active molecules capable of stimulating the growth of mammalian cells in culture and modifying the immune response in a murine model. An extract prepared from bovine colostral whey by cation exchange and re versed-phase chromatography stimulated the growth of L6 rat myoblasts, Balb/c-3T3 mouse fibroblasts and BHK-21 baby hamster kidney cells with equal or greater potency than fetal bovine serum. Fractionation of the bovine colostral extract by gel-permeation chromatography in M-acetic acid identified a number of cell-growth factors for each cell type. Bovine colostral extract was compared with an ovine colostral whey preparation for its ability to modulate IgE antibody responses in mice. Doses of 8 and 4 mg/d of ovine colostral whey or bovine colostral extract specifically suppressed IgE antibody responses, whereas at lower doses suppression did not occur. We conclude that bovine colostrum contains cell-growth factors as well as immunomodulatory factors that are able to regulate the IgE response in a heterologous species.

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Gleich-Theurer, Ute, Simone Aymanns, Gregor Haas, Stefanie Mauerer, Julia Vogt y Barbara Spellerberg. "Human Serum Induces Streptococcal C5a Peptidase Expression". Infection and Immunity 77, n.º 9 (8 de junio de 2009): 3817–25. http://dx.doi.org/10.1128/iai.00826-08.

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ABSTRACTStreptococcus agalactiaeis a major pathogen in humans and animals. Virulence factors are often associated with mobile genetic elements, and their expression can be modulated by host factors.S. agalactiaeharbors the genes for C5a peptidase (scpB) and Lmb on a composite transposon structure which is absent in many bovine isolates. To investigate whether these genes participate in the adaptation to human hosts, we determined the influence of human and bovine serum on the promoter activity ofscpBandlmbby using fluorescence-activated cell sorter analysis. Culture in the presence of 1 to 50% human serum resulted in a dose-dependent induction of reporter gene activity forscpBbut notlmb. Reporter gene activity was, however, unchanged following growth in fetal calf serum. Interestingly, a bovine strain did not display any induction ofscpBby either bovine or human serum. Reverse transcription-PCR analysis was used to confirm differential induction ofscpBinS. agalactiaeand showed a similar induction of theStreptococcus pyogenesC5a peptidase genescpAby human but not bovine serum. The specific induction of the streptococcal C5a peptidase by human serum corresponds to the absence ofscpBin many bovineS. agalactiaeisolates and underlines the importance of this virulence factor for human infections.

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Gomes Moreira, Vanessa Ohana, Raimundo Nonato De Assis Júnior y Túlio Cordeiro Aragão. "CRESCIMENTO E FOTOSSÍNTESE DO MILHO CULTIVADO SOB ESTRESSE SALINO COM ESTERCO E POLÍMERO SUPERABSORVENTE". IRRIGA 25, n.º 3 (28 de septiembre de 2020): 603–16. http://dx.doi.org/10.15809/irriga.2020v25n3p603-616.

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CRESCIMENTO E FOTOSSÍNTESE DO MILHO CULTIVADO SOB ESTRESSE SALINO COM ESTERCO E POLÍMERO SUPERABSORVENTE VANESSA OHANA GOMES MOREIRA1; RAIMUNDO NONATO DE ASSIS JÚNIOR2 E TÚLIO CORDEIRO ARAGÃO3 1Engenheira Agrônoma, Mestra e Doutoranda em Ciência do Solo, Departamento de Ciência do Solo, Programa de Pós-Graduação em Ciência do Solo, Universidade Federal do Ceará, Campus do Pici – Bloco 807, CEP 60356-000, Fortaleza, Ceará, Brasil. E-mail: van_ohana1@hotmail.com 2Engenheiro Agrônomo, Doutor em Agronomia - Solos e Nutrição de Plantas, Professor Titular, Departamento de Ciência do Solo, Universidade Federal do Ceará, Campus do Pici – Bloco 807, CEP 60356-000, Fortaleza, Ceará, Brasil. E-mail: assisjr@ufc.br 3Graduando em Química. Departamento de Química, Universidade Federal do Ceará, Campus do Pici - Bloco 940, CEP 60440-900, Fortaleza – Ceará, Brasil. E-mail: tuliocaragao@gmail.com 1 RESUMO Esse trabalho objetivou avaliar o uso de esterco bovino e polímero iônico superabsorvente no crescimento inicial e na capacidade fotossintética de plantas de milho cultivadas em Neossolo Quartzarênico salino-sódico. O experimento foi instalado em casa de vegetação com quatro tratamentos: T1 - Controle; T2 – Polímero; T3 - Esterco bovino; T4 - Polímero + Esterco bovino. Foram avaliados os parâmetros biométricos: altura das plantas, diâmetro do colmo, área foliar, massa seca da parte aérea, comprimento e massa seca da raiz aos 45 dias após a emergência (DAE) das plantas. A fotossíntese foi avaliada em três momentos: aos 15, 30 e 45 DAE. Houve diferenças significativas pelo teste F (p < 0,05) nos parâmetros biométricos avaliados e na taxa de fotossíntese. As menores médias das variáveis analisadas foram obtidas no tratamento controle. A aplicação do polímero resultou em médias dos parâmetros biométricos e da fotossíntese estatisticamente menores que as médias do esterco bovino. A combinação de polímero e esterco promoveu incremento na capacidade fotossintética e no comprimento da raiz. Conclui-se que, o esterco é mais eficiente que o polímero na melhoria do crescimento inicial do milho sob estresse salino e, quando combinados, promovem maior capacidade fotossintética e maior crescimento das raízes. Palavras-chave: salinidade do solo, hidrogel, adubo orgânico, Zea Mays L. MOREIRA, V. O. G.; ASSIS JÚNIOR, R. N.; ARAGÃO, T. C. GROWTH AND PHOTOSYNTHESIS OF MAIZE CULTIVATED UNDER SALINE STRESS WITH MANURE AND SUPERABSORBENT POLYMER 2 ABSTRACT This work aimed to evaluate the use of bovine manure and ionic superabsorbent polymer in the initial growth and in the photosynthetic capacity of maize cultivated in saline-sodium Quartzarenic Neosol . The experiment was installed in a greenhouse with four treatments: T1 - Control; T2 - Polymer; T3 - Bovine manure; T4 - Polymer + Bovine manure. Biometric parameters were evaluated: plant height, stem diameter, leaf area, aerial part dry matter, root length and root dry matter at 45 days after emergence (DAE). The photosynthesis was evaluated in three moments: at 15, 30 and 45 DAE. Significant differences were observed by the F test (p <0.05) in biometric parameters evaluated and photosynthesis rate. The application of the polymer resulted in lower averages than those of the bovine manure for all biometric parameters and photosynthesis. The combination of polymer and bovine manure promoted an increase in photosynthetic capacity and in root length. It is concluded that bovine manure is more efficient than polymer in improving the initial growth of maize under saline stress and when combined promote increase in rate of photosynthesis and root growth. Keywords: soil salinity, hydrogel, organic fertilizer, Zea Mays L.

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Mo, Ji Xian, Bo Hui Zhang y Xue Jun Gao. "Preparation of Insulin-Like Growth Factor-1 from Bovine Colostrums". Advanced Materials Research 343-344 (septiembre de 2011): 1059–63. http://dx.doi.org/10.4028/www.scientific.net/amr.343-344.1059.

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This experiment achieved a purpose that bovine colostrums IGF-1 were extracted from bovine colostrums rapidly and efficiently. Fresh bovine colostrums were heated at 40 °C for 1h and centrifuged at 2500 rpm for 20min, then they were discarded the upper fat and adjusted the pH value of skim milk at 4.2 to remove casein, the salting saturation was 35% to remove high molecular proteins. We extracted IGF-1 concentrated liquid by the ultra filtration which were 50ku and 3ku molecular weight, and the IGF-1 concentrated liquid were purified further by chromatography which was filled up weak cation exchanger (CM-SephadexC-25), the equilibrium buffer was NaCl solution （0.02 mol / L buffer, pH 7.25, the flow rate was 80cm / h）. Finally we used the HPLC and the ELISA to determine the purity and the yield of the IGF-1 concentrated liquid. The results were that the yield of the bovine colostrums IGF-1 was 71.98%, and the purity was 65.51%.

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Upton, F. Z., L. Szabo, J. C. Wallace y F. J. Ballard. "Characterization and cloning of a bovine insulin-like growth factor-binding protein". Journal of Molecular Endocrinology 5, n.º 1 (agosto de 1990): 77–84. http://dx.doi.org/10.1677/jme.0.0050077.

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ABSTRACT The primary structure of the insulin-like growth factor-binding protein (IGFBP) produced by the bovine kidney cell line, MDBK, has been deduced from the cDNA clone. The MDBK binding protein precursor consists of a hydrophobic pre-peptide of at least 26 amino acids and a mature protein of 284 amino acids. The predicted protein sequence shares extensive sequence similarity with both the rat (82%) and human (89%) IGFBP-2s, so that the MDBK binding protein is clearly the bovine counterpart of IGFBP-2. The protein has limited similarity with classes 1 (31%) and 3 (31%) human IGFBPs, except that all 18 cysteine residues are conserved. Other features deduced from the bovine IGFBP-2 cDNA include: an abundance of leucine in the pre-peptide, an Arg-Gly-Asp sequence, absence of N-linked glycosylation sites, and an imperfect polyadenylation signal as well as an ATTTA motif in the 3′ non-coding DNA. Western blotting indicated that this binding protein is widely distributed in bovine fluids as well as in media conditioned by bovine cell lines. Proteins immunologically related to bovine IGFBP-2 were detected not only in sheep, but also in chickens, indicating that this IGFBP is not exclusively mammalian.

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Badinga, Lokenga, Robert J. Collier, William W. Thatcher, Sergio J. Quintana y Fuller W. Bazer. "Covalent coupling of bovine growth hormone to its receptor in bovine liver membranes". Molecular and Cellular Endocrinology 52, n.º 1-2 (julio de 1987): 85–89. http://dx.doi.org/10.1016/0303-7207(87)90100-6.

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Silva, Elane B. da, Thales V. de A. Viana, Geocleber G. de Sousa, José T. M. de Sousa, Max F. dos Santos y Benito M. de Azevedo. "Growth and nutrition of peanut crop subjected to saline stress and organomineral fertilization". Revista Brasileira de Engenharia Agrícola e Ambiental 26, n.º 7 (julio de 2022): 495–501. http://dx.doi.org/10.1590/1807-1929/agriambi.v26n7p495-501.

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ABSTRACT The peanut crop, owing to its microbiological and nutritional aspects, is of great economic importance for agriculture and the food industry. However, salt stress can negatively affect nutrient uptake and plant growth. The objective of this study was to evaluate the growth and foliar nutrient concentrations of peanut plants subjected to irrigation with saline water and different forms of organomineral fertilization. The experiment was conducted in a greenhouse in a completely randomized design (5 × 2 factorial scheme) with five forms of fertilization (F1 = 100% mineral; F2 = 100% bovine biofertilizer; F3 = 100% vegetal ash; F4 = 50% mineral + 50% bovine biofertilizer; and F5 = 50% mineral + 50% vegetal ash), two levels of electrical conductivity of the irrigation water (ECw) (1.0 and 5.0 dS m-1), and five replicates. Salt stress inhibited plant growth and the number of leaves, but increased the average stem diameter with the use of 100% bovine biofertilizer and higher salinity water. When ECw of 5.0 dS m-1 was used along with the bovine biofertilizer (100%), the P concentration in plants increased. The K concentration was reduced in plants fertilized with bovine biofertilizer (100%) and vegetal ash (100%), while Mg concertation was reduced in plants fertilized with bovine biofertilizer (100%) or mineral fertilizer (50%) + bovine biofertilizer (50%) with irrigation water of 5.0 dS m-1.

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Saadeldin, Islam M., Ahmed Abdelfattah-Hassan y Ayman Abdel-Aziz Swelum. "Feeder Cell Type Affects the Growth of In Vitro Cultured Bovine Trophoblast Cells". BioMed Research International 2017 (2017): 1–6. http://dx.doi.org/10.1155/2017/1061589.

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Trophectoderm cells are the foremost embryonic cells to differentiate with prospective stem-cell properties. In the current study, we aimed at improving the current approach for trophoblast culture by using granulosa cells as feeders. Porcine granulosa cells (PGCs) compared to the conventional mouse embryonic fibroblasts (MEFs) were used to grow trophectoderm cells from hatched bovine blastocysts. Isolated trophectoderm cells were monitored and displayed characteristic epithelial/cuboidal morphology. The isolated trophectoderm cells expressed mRNA of homeobox protein (CDX2), cytokeratin-8 (KRT8), and interferon tau (IFNT). The expression level was higher on PGCs compared to MEFs throughout the study. In addition, primary trophectoderm cell colonies grew faster on PGCs, with a doubling time of approximately 48 hrs, compared to MEFs. PGCs feeders produced a fair amount of 17β-estradiol and progesterone. We speculated that the supplementation of sex steroids and still-unknown factors during the trophoblasts coculture on PGCs have helped to have better trophectoderm cell’s growth than on MEFs. This is the first time to use PGCs as feeders to culture trophectoderm cells and it proved superior to MEFs. We propose PGCs as alternative feeders for long-term culture of bovine trophectoderm cells. This model will potentially benefit studies on the early trophoblast and embryonic development in bovines.

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Trippel, S. B., M. C. Whelan, M. Klagsbrun y S. R. Doctrow. "Interaction of basic fibroblast growth factor with bovine growth plate chondrocytes". Journal of Orthopaedic Research 10, n.º 5 (septiembre de 1992): 638–46. http://dx.doi.org/10.1002/jor.1100100506.

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Hyrslova, Ivana, Gabriela Krausova, Tereza Michlova, Antonin Kana y Ladislav Curda. "Fermentation Ability of Bovine Colostrum by Different Probiotic Strains". Fermentation 6, n.º 3 (22 de septiembre de 2020): 93. http://dx.doi.org/10.3390/fermentation6030093.

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Over the past decade, the use of bovine colostrum and its bioactive components as the basis of functional food and dietary supplements for humans has substantially increased. However, for developing new products enriched with probiotics and bovine colostrum, the influence of colostrum composition on the growth promotion of bacteria still needs to be tested. Therefore, we decided to study the influence of bovine colostrum chemical and mineral composition as well as the content of bioactive compounds (immunoglobulins, lactoferrin, lactoperoxidase) on the growth of ten selected strains from genera Lactobacillus, Lacticaseibacillus, Bifidobacterium, and Enterococcus. After 24 h of fermentation, the growth was assessed based on lactic and acetic acids production evaluated using isotachophoresis, bacterial counts determined by the agar plate method, and change of pH. The production of acids and bacterial counts were significantly (P<0.05) different between selected genera. The change of bacterial counts was correlated with pH, but the correlation between growth and bovine colostrum composition was not proven. The highest growth and production of lactic acid was observed after the fermentation of bovine colostrum by the strains Enterococcus faecium CCDM 922A and CCDM 945.

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Johnsson, I. D., I. C. Hart y B. W. Butler-Hogg. "The effects of exogenous bovine growth hormone and bromocriptine on growth, body development, fleece weight and plasma concentrations of growth hormone, insulin and prolactin in female lambs". Animal Science 41, n.º 2 (octubre de 1985): 207–17. http://dx.doi.org/10.1017/s0003356100027872.

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ABSTRACTIn crossbred female lambs given a concentrate diet ad libitum between 8 and 20 weeks of age, daily subcutaneous injections of 0·1 mg bovine pituitary growth hormone (GH) per kg live weight increased daily live-weight gain (347 v. 284 g/day; P < 0·01; no. = 8), food conversion efficiency (3·94 v. 4·49 kg dry matter per kg gain; P < 0·01) and greasy fleece weight (1·49 v. 0·99 kg; P < 0·001). The increase (4·8 kg) in final live weight was due primarily to an increase in the non-carcass components of the body (3·5 kg), with little effect on carcass weight (1·3 kg). However, bovine GH treatment markedly increased the weights of lean tissue (11·4 v. 9·2 kg; P < 0·001) and bone (2·8 v. 2·4 kg; P < 0·001) and moderately reduced the weight of fat (7·0 v. 8·0 kg; P < 0·10) in the carcass. The bovine GH treatment raised plasma concentrations of immunoreactive GH within the physiological range for about 16 h each day and significantly increased mean plasma concentrations of insulin and prolactin. Daily injection of 1 mg bromocriptine had no effect on daily live-weight gain, food conversion efficiency or carcass composition. This treatment markedly reduced plasma concentrations of prolactin but also significantly reduced insulin concentrations. When given in combination with bovine GH, bromocriptine reduced the GH-induced stimulation of insulin concentration and tended to decrease the effects of GH on food conversion efficiency and growth. This interaction was significant only for the effects on greasy fleece and skin weights (P < 0·01).

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