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5. Utilization of mechanical power and associations with clinical outcomes in brain injured patients: a secondary analysis of the extubation strategies in neuro-intensive care unit patients and associations with outcome (ENIO) trial

Author

Wahlster, S, Sharma, M, Taran, S, Town, J, Stevens, R, Cinotti, R, Asehoune, K, Pelosi, P, Robba, C, Abback, P, Codorniu, A, Citerio, G, Sala, V, Astuto, M, Tringali, E, Alampi, D, Rocco, M, Maugeri, J, Bellissima, A, Filippini, M, Lazzeri, N, Cortegiani, A, Ippolito, M, Battaglini, D, Biston, P, Al-Gharyani, M, Chabanne, R, Astier, L, Soyer, B, Gaugain, S, Zimmerli, A, Pietsch, U, Filipovic, M, Brandi, G, Bicciato, G, Serrano, A, Monleon, B, van Vliet, P, Gerretsen, B, Ortiz-Macias, I, Oto, J, Enomoto, N, Matsuda, T, Masui, N, Garcon, P, Zarka, J, Vermeijden, W, Cornet, A, Inurrigarro, S, Dominguez, R, Bellini, M, Gomez Haedo, M, Lamot, L, Orquera, J, Biais, M, Georges, D, Baronia, A, Miranda-Ackerman, R, Barbosa-Camacho, F, Porter, J, Lopez-Morales, M, Geeraerts, T, Compagnon, B, Perez-Torres, D, Prol-Silva, E, Yahya, H, Khaled, A, Ghula, M, Andrea, C, Daniela, P, Deana, C, Vetrugno, L, Chavez, M, Trujillo, R, Legros, V, Brochet, B, Huet, O, Geslain, M, van der Jagt, M, van Steenkiste, J, Ahmed, H, Coombs, A, Welbourne, J, Velarde Pineda, A, Nubert Castillo, V, Azab, M, Azzam, A, van Meenen, D, Gasca, G, Arellano, A, Galicia-Espinosa, F, Garcia-Ramos, J, Yadav, G, Jha, A, Robert-Edan, V, Rodie-Talbere, P, Jain, G, Panda, S, Agarwal, S, Deewan, Y, Reza, S, Hossain, M, Papadas, C, Chantziara, V, Sklavou, C, Hourmant, Y, Grillot, N, Pirracchio, R, Akkari, A, Abdelaty, M, Hashim, A, Launey, Y, Masseret, E, Lasocki, S, Gergaud, S, Mouclier, N, Saxena, S, Agrawal, A, Mishra, S, Samal, S, Mijangos, J, Haenggi, M, Gurjar, M, Schultz, M, Kaye, C, Godoy, D, Alvarez, P, Ioakeimidou, A, Ueno, Y, Badenes, R, Suei Elbuzidi, A, Piagnerelli, M, Elhadi, M, Digitale, J, Fong, N, Cerda, R, de la Torre Peredo, N, Wahlster S., Sharma M., Taran S., Town J. A., Stevens R. D., Cinotti R., Asehoune K., Pelosi P., Robba C., Abback P. -S., Codorniu A., Citerio G., Sala V. L., Astuto M., Tringali E., Alampi D., Rocco M., Maugeri J. G., Bellissima A., Filippini M., Lazzeri N., Cortegiani A., Ippolito M., Battaglini D., Biston P., Al-Gharyani M. F., Chabanne R., Astier L., Soyer B., Gaugain S., Zimmerli A., Pietsch U., Filipovic M., Brandi G., Bicciato G., Serrano A., Monleon B., van Vliet P., Gerretsen B. M., Ortiz-Macias I. X., Oto J., Enomoto N., Matsuda T., Masui N., Garcon P., Zarka J., Vermeijden W. J., Cornet A. D., Inurrigarro S. R., Dominguez R. C. L., Bellini M. M., Gomez Haedo M. M., Lamot L., Orquera J., Biais M., Georges D., Baronia A., Miranda-Ackerman R. C., Barbosa-Camacho F. J., Porter J., Lopez-Morales M., Geeraerts T., Compagnon B., Perez-Torres D., Prol-Silva E., Yahya H. B., Khaled A., Ghula M., Andrea C. N., Daniela P. M., Deana C., Vetrugno L., Chavez M. J. R., Trujillo R. M., Legros V., Brochet B., Huet O., Geslain M., van der Jagt M., van Steenkiste J., Ahmed H., Coombs A. E., Welbourne J., Velarde Pineda A. A., Nubert Castillo V. H., Azab M. A., Azzam A. Y., van Meenen D. M. P., Gasca G. A., Arellano A., Galicia-Espinosa F., Garcia-Ramos J. C., Yadav G., Jha A. K., Robert-Edan V., Rodie-Talbere P. -A., Jain G., Panda S., Agarwal S., Deewan Y., Reza S. T., Hossain M. M., Papadas C., Chantziara V., Sklavou C., Hourmant Y., Grillot N., Pirracchio R., Akkari A., Abdelaty M., Hashim A., Launey Y., Masseret E., Lasocki S., Gergaud S., Mouclier N., Saxena S., Agrawal A., Mishra S. B., Samal S., Mijangos J. C., Haenggi M., Gurjar M., Schultz M. J., Kaye C., Godoy D. A., Alvarez P., Ioakeimidou A., Ueno Y., Badenes R., Suei Elbuzidi A. A., Piagnerelli M., Elhadi M., Digitale J. C., Fong N., Cerda R. C., de la Torre Peredo N., Wahlster, S, Sharma, M, Taran, S, Town, J, Stevens, R, Cinotti, R, Asehoune, K, Pelosi, P, Robba, C, Abback, P, Codorniu, A, Citerio, G, Sala, V, Astuto, M, Tringali, E, Alampi, D, Rocco, M, Maugeri, J, Bellissima, A, Filippini, M, Lazzeri, N, Cortegiani, A, Ippolito, M, Battaglini, D, Biston, P, Al-Gharyani, M, Chabanne, R, Astier, L, Soyer, B, Gaugain, S, Zimmerli, A, Pietsch, U, Filipovic, M, Brandi, G, Bicciato, G, Serrano, A, Monleon, B, van Vliet, P, Gerretsen, B, Ortiz-Macias, I, Oto, J, Enomoto, N, Matsuda, T, Masui, N, Garcon, P, Zarka, J, Vermeijden, W, Cornet, A, Inurrigarro, S, Dominguez, R, Bellini, M, Gomez Haedo, M, Lamot, L, Orquera, J, Biais, M, Georges, D, Baronia, A, Miranda-Ackerman, R, Barbosa-Camacho, F, Porter, J, Lopez-Morales, M, Geeraerts, T, Compagnon, B, Perez-Torres, D, Prol-Silva, E, Yahya, H, Khaled, A, Ghula, M, Andrea, C, Daniela, P, Deana, C, Vetrugno, L, Chavez, M, Trujillo, R, Legros, V, Brochet, B, Huet, O, Geslain, M, van der Jagt, M, van Steenkiste, J, Ahmed, H, Coombs, A, Welbourne, J, Velarde Pineda, A, Nubert Castillo, V, Azab, M, Azzam, A, van Meenen, D, Gasca, G, Arellano, A, Galicia-Espinosa, F, Garcia-Ramos, J, Yadav, G, Jha, A, Robert-Edan, V, Rodie-Talbere, P, Jain, G, Panda, S, Agarwal, S, Deewan, Y, Reza, S, Hossain, M, Papadas, C, Chantziara, V, Sklavou, C, Hourmant, Y, Grillot, N, Pirracchio, R, Akkari, A, Abdelaty, M, Hashim, A, Launey, Y, Masseret, E, Lasocki, S, Gergaud, S, Mouclier, N, Saxena, S, Agrawal, A, Mishra, S, Samal, S, Mijangos, J, Haenggi, M, Gurjar, M, Schultz, M, Kaye, C, Godoy, D, Alvarez, P, Ioakeimidou, A, Ueno, Y, Badenes, R, Suei Elbuzidi, A, Piagnerelli, M, Elhadi, M, Digitale, J, Fong, N, Cerda, R, de la Torre Peredo, N, Wahlster S., Sharma M., Taran S., Town J. A., Stevens R. D., Cinotti R., Asehoune K., Pelosi P., Robba C., Abback P. -S., Codorniu A., Citerio G., Sala V. L., Astuto M., Tringali E., Alampi D., Rocco M., Maugeri J. G., Bellissima A., Filippini M., Lazzeri N., Cortegiani A., Ippolito M., Battaglini D., Biston P., Al-Gharyani M. F., Chabanne R., Astier L., Soyer B., Gaugain S., Zimmerli A., Pietsch U., Filipovic M., Brandi G., Bicciato G., Serrano A., Monleon B., van Vliet P., Gerretsen B. M., Ortiz-Macias I. X., Oto J., Enomoto N., Matsuda T., Masui N., Garcon P., Zarka J., Vermeijden W. J., Cornet A. D., Inurrigarro S. R., Dominguez R. C. L., Bellini M. M., Gomez Haedo M. M., Lamot L., Orquera J., Biais M., Georges D., Baronia A., Miranda-Ackerman R. C., Barbosa-Camacho F. J., Porter J., Lopez-Morales M., Geeraerts T., Compagnon B., Perez-Torres D., Prol-Silva E., Yahya H. B., Khaled A., Ghula M., Andrea C. N., Daniela P. M., Deana C., Vetrugno L., Chavez M. J. R., Trujillo R. M., Legros V., Brochet B., Huet O., Geslain M., van der Jagt M., van Steenkiste J., Ahmed H., Coombs A. E., Welbourne J., Velarde Pineda A. A., Nubert Castillo V. H., Azab M. A., Azzam A. Y., van Meenen D. M. P., Gasca G. A., Arellano A., Galicia-Espinosa F., Garcia-Ramos J. C., Yadav G., Jha A. K., Robert-Edan V., Rodie-Talbere P. -A., Jain G., Panda S., Agarwal S., Deewan Y., Reza S. T., Hossain M. M., Papadas C., Chantziara V., Sklavou C., Hourmant Y., Grillot N., Pirracchio R., Akkari A., Abdelaty M., Hashim A., Launey Y., Masseret E., Lasocki S., Gergaud S., Mouclier N., Saxena S., Agrawal A., Mishra S. B., Samal S., Mijangos J. C., Haenggi M., Gurjar M., Schultz M. J., Kaye C., Godoy D. A., Alvarez P., Ioakeimidou A., Ueno Y., Badenes R., Suei Elbuzidi A. A., Piagnerelli M., Elhadi M., Digitale J. C., Fong N., Cerda R. C., and de la Torre Peredo N.

Abstract

Background: There is insufficient evidence to guide ventilatory targets in acute brain injury (ABI). Recent studies have shown associations between mechanical power (MP) and mortality in critical care populations. We aimed to describe MP in ventilated patients with ABI, and evaluate associations between MP and clinical outcomes. Methods: In this preplanned, secondary analysis of a prospective, multi-center, observational cohort study (ENIO, NCT03400904), we included adult patients with ABI (Glasgow Coma Scale ≤ 12 before intubation) who required mechanical ventilation (MV) ≥ 24 h. Using multivariable log binomial regressions, we separately assessed associations between MP on hospital day (HD)1, HD3, HD7 and clinical outcomes: hospital mortality, need for reintubation, tracheostomy placement, and development of acute respiratory distress syndrome (ARDS). Results: We included 1217 patients (mean age 51.2 years [SD 18.1], 66% male, mean body mass index [BMI] 26.3 [SD 5.18]) hospitalized at 62 intensive care units in 18 countries. Hospital mortality was 11% (n = 139), 44% (n = 536) were extubated by HD7 of which 20% (107/536) required reintubation, 28% (n = 340) underwent tracheostomy placement, and 9% (n = 114) developed ARDS. The median MP on HD1, HD3, and HD7 was 11.9 J/min [IQR 9.2–15.1], 13 J/min [IQR 10–17], and 14 J/min [IQR 11–20], respectively. MP was overall higher in patients with ARDS, especially those with higher ARDS severity. After controlling for same-day pressure of arterial oxygen/fraction of inspired oxygen (P/F ratio), BMI, and neurological severity, MP at HD1, HD3, and HD7 was independently associated with hospital mortality, reintubation and tracheostomy placement. The adjusted relative risk (aRR) was greater at higher MP, and strongest for: mortality on HD1 (compared to the HD1 median MP 11.9 J/min, aRR at 17 J/min was 1.22, 95% CI 1.14–1.30) and HD3 (1.38, 95% CI 1.23–1.53), reintubation on HD1 (1.64; 95% CI 1.57–1.72), and tracheostomy on HD7 (1

Published
2023

7. Extubation in neurocritical care patients: the ENIO international prospective study

Author

Cinotti, R, Mijangos, J, Pelosi, P, Haenggi, M, Gurjar, M, Schultz, M, Kaye, C, Godoy, D, Alvarez, P, Ioakeimidou, A, Ueno, Y, Badenes, R, Suei Elbuzidi, A, Piagnerelli, M, Elhadi, M, Reza, S, Azab, M, Mccredie, V, Stevens, R, Digitale, J, Fong, N, Asehnoune, K, Abback, P, Codorniu, A, Citerio, G, Sala, V, Astuto, M, Tringali, E, Alampi, D, Rocco, M, Maugeri, J, Bellissima, A, Filippini, M, Lazzeri, N, Cortegiani, A, Ippolito, M, Robba, C, Battaglini, D, Biston, P, Al-Gharyani, M, Chabanne, R, Astier, L, Soyer, B, Gaugain, S, Zimmerli, A, Pietsch, U, Filipovic, M, Brandi, G, Bicciato, G, Serrano, A, Monleon, B, van Vliet, P, Gerretsen, B, Ortiz-Macias, I, Oto, J, Enomoto, N, Matsuda, T, Masui, N, Garcon, P, Zarka, J, Vermeijden, W, Cornet, A, Inurrigarro, S, Dominguez, R, Bellini, M, Haedo, M, Lamot, L, Orquera, J, Biais, M, Georges, D, Baronia, A, Miranda-Ackerman, R, Barbosa-Camacho, F, Porter, J, Lopez-Morales, M, Geeraerts, T, Compagnon, B, Perez-Torres, D, Prol-Silva, E, Yahya, H, Khaled, A, Ghula, M, Andrea, C, Daniela, P, Deana, C, Vetrugno, L, Chavez, M, Trujillo, R, Legros, V, Brochet, B, Huet, O, Geslain, M, van der Jagt, M, van Steenkiste, J, Ahmed, H, Coombs, A, Welbourne, J, Pineda, A, Castillo, V, Azzam, A, van Meenen, D, Gasca, G, Arellano, A, Galicia-Espinosa, F, Garcia-Ramos, J, Yadav, G, Jha, A, Robert-Edan, V, Rodie-Talbere, P, Jain, G, Panda, S, Agarwal, S, Deewan, Y, Hossain, M, Papadas, C, Chantziara, V, Sklavou, C, Hourmant, Y, Grillot, N, Pirracchio, R, Akkari, A, Abdelaty, M, Hashim, A, Launey, Y, Masseret, E, Lasocki, S, Gergaud, S, Mouclier, N, Saxena, S, Agrawal, A, Mishra, S, Samal, S, Cinotti R., Mijangos J. C., Pelosi P., Haenggi M., Gurjar M., Schultz M. J., Kaye C., Godoy D. A., Alvarez P., Ioakeimidou A., Ueno Y., Badenes R., Suei Elbuzidi A. A., Piagnerelli M., Elhadi M., Reza S. T., Azab M. A., McCredie V., Stevens R. D., Digitale J. C., Fong N., Asehnoune K., Abback P. -S., Codorniu A., Citerio G., Sala V. L., Astuto M., Tringali E., Alampi D., Rocco M., Maugeri J. G., Bellissima A., Filippini M., Lazzeri N., Cortegiani A., Ippolito M., Robba C., Battaglini D., Biston P., Al-Gharyani M. F., Chabanne R., Astier L., Soyer B., Gaugain S., Zimmerli A., Pietsch U., Filipovic M., Brandi G., Bicciato G., Serrano A., Monleon B., van Vliet P., Gerretsen B. M., Ortiz-Macias I. X., Oto J., Enomoto N., Matsuda T., Masui N., Garcon P., Zarka J., Vermeijden W. J., Cornet A. D., Inurrigarro S. R., Dominguez R. C. L., Bellini M. M., Haedo M. M. G., Lamot L., Orquera J., Biais M., Georges D., Baronia A., Miranda-Ackerman R. C., Barbosa-Camacho F. J., Porter J., Lopez-Morales M., Geeraerts T., Compagnon B., Perez-Torres D., Prol-Silva E., Yahya H. B., Khaled A., Ghula M., Andrea C. N., Daniela P. M., Deana C., Vetrugno L., Chavez M. J. R., Trujillo R. M., Legros V., Brochet B., Huet O., Geslain M., van der Jagt M., van Steenkiste J., Ahmed H., Coombs A. E., Welbourne J., Pineda A. A. V., Castillo V. H. N., Azzam A. Y., van Meenen D. M. P., Gasca G. A., Arellano A., Galicia-Espinosa F., Garcia-Ramos J. C., Yadav G., Jha A. K., Robert-Edan V., Rodie-Talbere P. -A., Jain G., Panda S., Agarwal S., Deewan Y., Hossain M. M., Papadas C., Chantziara V., Sklavou C., Hourmant Y., Grillot N., Pirracchio R., Akkari A., Abdelaty M., Hashim A., Launey Y., Masseret E., Lasocki S., Gergaud S., Mouclier N., Saxena S., Agrawal A., Mishra S. B., Samal S., Cinotti, R, Mijangos, J, Pelosi, P, Haenggi, M, Gurjar, M, Schultz, M, Kaye, C, Godoy, D, Alvarez, P, Ioakeimidou, A, Ueno, Y, Badenes, R, Suei Elbuzidi, A, Piagnerelli, M, Elhadi, M, Reza, S, Azab, M, Mccredie, V, Stevens, R, Digitale, J, Fong, N, Asehnoune, K, Abback, P, Codorniu, A, Citerio, G, Sala, V, Astuto, M, Tringali, E, Alampi, D, Rocco, M, Maugeri, J, Bellissima, A, Filippini, M, Lazzeri, N, Cortegiani, A, Ippolito, M, Robba, C, Battaglini, D, Biston, P, Al-Gharyani, M, Chabanne, R, Astier, L, Soyer, B, Gaugain, S, Zimmerli, A, Pietsch, U, Filipovic, M, Brandi, G, Bicciato, G, Serrano, A, Monleon, B, van Vliet, P, Gerretsen, B, Ortiz-Macias, I, Oto, J, Enomoto, N, Matsuda, T, Masui, N, Garcon, P, Zarka, J, Vermeijden, W, Cornet, A, Inurrigarro, S, Dominguez, R, Bellini, M, Haedo, M, Lamot, L, Orquera, J, Biais, M, Georges, D, Baronia, A, Miranda-Ackerman, R, Barbosa-Camacho, F, Porter, J, Lopez-Morales, M, Geeraerts, T, Compagnon, B, Perez-Torres, D, Prol-Silva, E, Yahya, H, Khaled, A, Ghula, M, Andrea, C, Daniela, P, Deana, C, Vetrugno, L, Chavez, M, Trujillo, R, Legros, V, Brochet, B, Huet, O, Geslain, M, van der Jagt, M, van Steenkiste, J, Ahmed, H, Coombs, A, Welbourne, J, Pineda, A, Castillo, V, Azzam, A, van Meenen, D, Gasca, G, Arellano, A, Galicia-Espinosa, F, Garcia-Ramos, J, Yadav, G, Jha, A, Robert-Edan, V, Rodie-Talbere, P, Jain, G, Panda, S, Agarwal, S, Deewan, Y, Hossain, M, Papadas, C, Chantziara, V, Sklavou, C, Hourmant, Y, Grillot, N, Pirracchio, R, Akkari, A, Abdelaty, M, Hashim, A, Launey, Y, Masseret, E, Lasocki, S, Gergaud, S, Mouclier, N, Saxena, S, Agrawal, A, Mishra, S, Samal, S, Cinotti R., Mijangos J. C., Pelosi P., Haenggi M., Gurjar M., Schultz M. J., Kaye C., Godoy D. A., Alvarez P., Ioakeimidou A., Ueno Y., Badenes R., Suei Elbuzidi A. A., Piagnerelli M., Elhadi M., Reza S. T., Azab M. A., McCredie V., Stevens R. D., Digitale J. C., Fong N., Asehnoune K., Abback P. -S., Codorniu A., Citerio G., Sala V. L., Astuto M., Tringali E., Alampi D., Rocco M., Maugeri J. G., Bellissima A., Filippini M., Lazzeri N., Cortegiani A., Ippolito M., Robba C., Battaglini D., Biston P., Al-Gharyani M. F., Chabanne R., Astier L., Soyer B., Gaugain S., Zimmerli A., Pietsch U., Filipovic M., Brandi G., Bicciato G., Serrano A., Monleon B., van Vliet P., Gerretsen B. M., Ortiz-Macias I. X., Oto J., Enomoto N., Matsuda T., Masui N., Garcon P., Zarka J., Vermeijden W. J., Cornet A. D., Inurrigarro S. R., Dominguez R. C. L., Bellini M. M., Haedo M. M. G., Lamot L., Orquera J., Biais M., Georges D., Baronia A., Miranda-Ackerman R. C., Barbosa-Camacho F. J., Porter J., Lopez-Morales M., Geeraerts T., Compagnon B., Perez-Torres D., Prol-Silva E., Yahya H. B., Khaled A., Ghula M., Andrea C. N., Daniela P. M., Deana C., Vetrugno L., Chavez M. J. R., Trujillo R. M., Legros V., Brochet B., Huet O., Geslain M., van der Jagt M., van Steenkiste J., Ahmed H., Coombs A. E., Welbourne J., Pineda A. A. V., Castillo V. H. N., Azzam A. Y., van Meenen D. M. P., Gasca G. A., Arellano A., Galicia-Espinosa F., Garcia-Ramos J. C., Yadav G., Jha A. K., Robert-Edan V., Rodie-Talbere P. -A., Jain G., Panda S., Agarwal S., Deewan Y., Hossain M. M., Papadas C., Chantziara V., Sklavou C., Hourmant Y., Grillot N., Pirracchio R., Akkari A., Abdelaty M., Hashim A., Launey Y., Masseret E., Lasocki S., Gergaud S., Mouclier N., Saxena S., Agrawal A., Mishra S. B., and Samal S.

Abstract

Purpose: Neurocritical care patients receive prolonged invasive mechanical ventilation (IMV), but there is poor specific information in this high-risk population about the liberation strategies of invasive mechanical ventilation. Methods: ENIO (NCT03400904) is an international, prospective observational study, in 73 intensive care units (ICUs) in 18 countries from 2018 to 2020. Neurocritical care patients with a Glasgow Coma Score (GCS) ≤ 12, receiving IMV ≥ 24 h, undergoing extubation attempt or tracheostomy were included. The primary endpoint was extubation failure by day 5. An extubation success prediction score was created, with 2/3 of patients randomly allocated to the training cohort and 1/3 to the validation cohort. Secondary endpoints were the duration of IMV and in-ICU mortality. Results: 1512 patients were included. Among the 1193 (78.9%) patients who underwent an extubation attempt, 231 (19.4%) failures were recorded. The score for successful extubation prediction retained 20 variables as independent predictors. The area under the curve (AUC) in the training cohort was 0.79 95% confidence interval (CI95) [0.71–0.87] and 0.71 CI95 [0.61–0.81] in the validation cohort. Patients with extubation failure displayed a longer IMV duration (14 [7–21] vs 6 [3–11] days) and a higher in-ICU mortality rate (8.7% vs 2.4%). Three hundred and nineteen (21.1%) patients underwent tracheostomy without extubation attempt. Patients with direct tracheostomy displayed a longer duration of IMV and higher in-ICU mortality than patients with an extubation attempt (success and failure). Conclusions: In neurocritical care patients, extubation failure is high and is associated with unfavourable outcomes. A score could predict extubation success in multiple settings. However, it will be mandatory to validate our findings in another prospective independent cohort.

Published
2022

27. Effect of aerobic training on the host systemic milieu in patients with solid tumours: an exploratory correlative study

Author

Glass, O K, primary, Inman, B A, additional, Broadwater, G, additional, Courneya, K S, additional, Mackey, J R, additional, Goruk, S, additional, Nelson, E R, additional, Jasper, J, additional, Field, C J, additional, Bain, J R, additional, Muehlbauer, M, additional, Stevens, R D, additional, Hirschey, M D, additional, and Jones, L W, additional

Published
2015
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30. Evidence for a novel O-linked sialylated trisaccharide on Ser-248 of human plasminogen 2

Author

Pirie-Shepherd, S R, Stevens, R D, Andon, N L, Enghild, J J, and Pizzo, S V

Subjects
Glycosylation, Molecular Sequence Data, Humans, Plasminogen, Amino Acid Sequence, Trisaccharides, Chromatography, High Pressure Liquid
Abstract

Udgivelsesdato: 1997-Mar-14 Human plasminogen, the inactive precursor of plasmin, exists in two major glycoforms. Plasminogen 1 contains an N-linked oligosaccharide at Asn-289 and an O-linked oligosaccharide at Thr-345. Plasminogen 2 is known to contain only an O-linked oligosaccharide at Thr-345. However, plasminogen 2 displays a further well documented microheterogeneity dependent on the N-acetylneuraminic acid content, which has functional consequences with regard to activation of plasminogen. The proposed structure and number of known oligosaccharide linkages in plasminogen 2 is insufficient to account for this microheterogeneity. In the present study, a combination of trypsin digestion, lectin affinity chromatography, Edman degradation amino acid sequence analysis, carbohydrate composition analysis, and mass spectrometry revealed the existence of a novel site for O-linked glycosylation on plasminogen 2 at Ser-248. Direct evidence for the structure of the carbohydrate was obtained from a combination of lectin affinity chromatography, desialylation experiments, and mass spectrometry analysis. These findings provide a structural basis for some of the observed microheterogeneity, and have implications with regard to the known functional consequences of the extent of sialylation of plasminogen.

Published
1997

32. Postpartum pathologic changes associated with a palpable uterine lumen in dairy cattle

Author

Stevens, R. D., Dinsmore, R. P., Ball, L., and Powers, B. E.

Subjects
Involution (mathematics), medicine.diagnostic_test, business.industry, Uterus, food and beverages, Physiology, Uterine horns, medicine.disease, Palpation, medicine.anatomical_structure, Lactation, Biopsy, medicine, Endometritis, business, Dairy cattle
Abstract

15 holstein cows with a palpable uterine lumen (PUL) at first postpartum palpation were identified and each cow was matched with a normal cow for parity and stage of lactation. Blood was collected from each cow and the uterus cultured, flushed with lactated Ringer's solution and biopsied. Analysis of blood samples indicated that all cows were healthy. Bacteria were isolated form 14 of 15 PUL cows and 13 of 15 normal cows. Uterine flush analysis showed evidence of an inflammatory response in 5 PUL cows and 1 normal cow. Mean scores from microscopical examination of the biopsy specimens were greater in PUL cows, indicating increased pathologic changes in this group., The Bovine Practitioner, No. 29 (1995 September)

Published
1995
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33. Branched-chain amino acid levels are associated with improvement in insulin resistance with weight loss

Author

Shah, S. H., primary, Crosslin, D. R., additional, Haynes, C. S., additional, Nelson, S., additional, Turer, C. B., additional, Stevens, R. D., additional, Muehlbauer, M. J., additional, Wenner, B. R., additional, Bain, J. R., additional, Laferrère, B., additional, Gorroochurn, P., additional, Teixeira, J., additional, Brantley, P. J., additional, Stevens, V. J., additional, Hollis, J. F., additional, Appel, L. J., additional, Lien, L. F., additional, Batch, B., additional, Newgard, C. B., additional, and Svetkey, L. P., additional

Published
2011
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40. Exploring Williams-Beuren syndrome using myGrid

Author

Stevens, R. D., primary, Tipney, H. J., additional, Wroe, C. J., additional, Oinn, T. M., additional, Senger, M., additional, Lord, P. W., additional, Goble, C. A., additional, Brass, A., additional, and Tassabehji, M., additional

Published
2004
Full Text
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