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Your search keyword '"Moran, O"' showing total 126 results
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126 results on '"Moran, O"'

1. Flexible strained membranes of multiferroic TbMnO3

Author

Shi, H., Ringe, F., Wang, D., Moran, O., Nayak, K., Jaiswal, A. K., Tacon, M. Le, and Fuchs, D.

Subjects
Condensed Matter - Materials Science
Abstract

The multiferroic properties of TbMnO3 demonstrate high versatility under applied pressure, making the material potentially suitable for use in flexible electronics. Here, we report on the preparation of elastic freestanding TbMnO3 membranes with dominant (001) or (010) crystallographic out-of-plane orientation. Membranes with thickness of 20 nm display orthorhombic bulk-like relaxed lattice parameters with strong suppression of twinning for the (010) oriented membranes. Strain in flexible membranes was tuned by using a commercial strain cell device and characterized by Raman spectroscopy. The B1g out-of-phase oxygen-stretching mode, representative for the Mn-O bond distance, systematically shifts to lower energy with increasing strain (epsilon{max} ~ 0.5 %). The flexibility and elastic properties of the membranes allow for specific manipulation of the multiferroic state by strain, whereas the choice of the crystallographic orientation gives possibility for an in- or out-of-plane electric polarization., Comment: 10 pages, 4 figures, under review in Applied Physics Letters

Published
2024

14. Flexible strained membranes of multiferroic TbMnO3.

Author

Shi, H., Ringe, F., Wang, D., Moran, O., Nayak, K., Jaiswal, A. K., Tacon, M. Le, and Fuchs, D.

Subjects
POLARIZATION (Electricity), LATTICE constants, FLEXIBLE electronics, CHEMICAL bond lengths, ELASTICITY
Abstract

The multiferroic properties of TbMnO3 demonstrate high versatility under applied pressure, making the material potentially suitable for use in flexible electronics. Here, we report on the preparation of elastic freestanding TbMnO3 membranes with dominant (001) or (010) crystallographic out-of-plane orientation. Membranes with a thickness of 20 nm display orthorhombic bulk-like relaxed lattice parameters with strong suppression of twinning for the (010) oriented membranes. Strain in flexible membranes was tuned using a commercial strain cell device and characterized by Raman spectroscopy. The B1g out-of-phase oxygen-stretching mode, representative of the Mn–O bond distance, systematically shifts to lower energy with increasing strain (εmax ≈ 0.5%). The flexibility and elastic properties of the membranes allow for specific manipulation of the multiferroic state by strain, whereas the choice of the crystallographic orientation gives the possibility of an in- or out-of-plane electric polarization. [ABSTRACT FROM AUTHOR]

Published
2024
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24. Cannabinoids is a 'No-Go' While a Cancer Patient is on Immunotherapy; but is It Safe to Use Psychedelics During Cancer Immunotherapy?

Author

Moran O, Brami M, Lamensdorf I, Romach Ea, and Nachliely M

Subjects
Oncology, medicine.medical_specialty, business.industry, medicine.medical_treatment, Cancer, Immunotherapy, medicine.disease, Preclinical data, Immune system, Cancer immunotherapy, Go/no go, Internal medicine, Medicine, Anxiety, medicine.symptom, business, Lysergic acid diethylamide, medicine.drug
Abstract

The use of Psychedelics by patients with cancer to relieve anxiety and depression has increased in the past few years. Since Psychedelics have immunomodulatory effects, their consumption among cancer patients should be carefully considered due to their potential negative effects on the tumor immune stroma, especially in view of the increase in the utilization of therapeutic approaches that are based on immune activation such as treatment with immune checkpoint inhibitors (ICIs). Preclinical data provided in this report indicate a potentially negative impact on tumor growth as a result of Psychedelics consumption during treatment with ICIs. Furthermore, our research suggests that the use of psychedelic agents (Lysergic acid diethylamide [LSD] or Psylocibin) might diminish the beneficial therapeutic benefits of ICIs.It might be necessary to expend this line of research in order to validate these findings, in view of the increase use of cannabinoids and psychedelics among cancer patients, some of them being treated with immune-based modalities.

Published
2021
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26. General aspects of the physical behavior of polycrystalline BiFeO3/VO2 bilayers grown on sapphire substrates.

Author

Martinez, J., Dionizio, S., Gutierrez, N., Mosquera, E., Diosa, J. E., Bolaños, G., and Moran, O.

Abstract

Heterostructures composed of bismuth ferrite, BiFeO3, and vanadium dioxide, VO2, films were successfully grown by means of the radio-frequency and DC sputtering on sapphire substrates. The X-ray diffraction (XRD) patterns showed that both films were polycrystalline in nature. The XRD data revealed the formation of the monoclinic VO2(M) phase. The bottom VO2 exhibited a sharp metal–insulator transition (MIT) at ~ 327 K with a variation in the value of the resistance of two orders of magnitude. Measurements of the electric polarization (P) versus the electric field (E) of the top BiFeO3 showed closed loops, although visually distinct from those of a true ferroelectric. In spite of the well-defined MIT of VO2, the effect of the structural change associated with the transition on the ferroelectric properties of BiFeO3 was masked by the large leakage currents. The probably perturbation of the ferroelectric order in the BiFeO3, associated with the structural changes through the MIT of VO2 was investigated by measuring the P-E dependence at temperatures below and above the MIT of VO2. Although round-shaped hysteresis were obtained, a small but sizeable difference in the values of the apparent remnant P at the temperatures of interest was observed. By the same token, the transition of VO2 seemed to influence the possible magneto-electric coupling in the BiFeO3 layer. [ABSTRACT FROM AUTHOR]

Published
2022
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27. Diagnostic accuracy of a clinical diagnosis of idiopathic pulmonary fibrosis: an international case-cohort study

Author

Walsh S. L. F., Maher T. M., Kolb M., Poletti V., Nusser R., Richeldi L., Vancheri C., Wilsher M. L., Antoniou K. M., Behr J., Bendstrup E., Brown K., Calandriello L., Corte T. J., Cottin V., Crestani B., Flaherty K., Glaspole I., Grutters J., Inoue Y., Kokosi M., Kondoh Y., Kouranos V., Kreuter M., Johannson K., Judge E., Ley B., Margaritopoulos G., Martinez F. J., Molina-Molina M., Morais A., Nunes H., Raghu G., Ryerson C. J., Selman M., Spagnolo P., Taniguchi H., Tomassetti S., Valeyre D., Wijsenbeek M., Wuyts W., Hansell D., Wells A., Zhu P. S., Yuan Y., Yoshito Fukuda C., Yoshimatsu Y., Xaubet A., Wong A. M., White P., Westney G., West A., Wessendorf T., Waseda Y., Wang C., Vienna J. M., Videnovic Ivanov J., Vicens Zygmunt V., Venero Caceres M. C., Velasquez Pinto G., Veitch E., Vasakova M., Varone F., Varela B. E., Van Hal P., Van De Ven M., Van Der Lee I., Van Den Toorn L., Urrutia Gajate A., Urban J., Ugarte Fornell L. G., Tzouvelekis A., Twohig K., Turner A., Trujillo S., Triani A., Traila D., Torres V., Tomioka H., Tomii K., Tomic R., Toma C., Tokgoz Akyil F., Tobino K., Tobar R., Tiwari A., Tibana R., Tian X., Thillai M., Tham W., Teo F., Tekavec Trkanjec J., Teixeira P., Tarpey D., Tapias L., Tanizawa K., Tanino Y., Takada T., Tabaj G., Szolnoki E., Swarnakar R., Strambu I., Sterclova M., Spinks K., Soo C. I., Soltani A., Solanki S., Sobh E., Soares M. R., Smith J., Smith B., Slocum P., Slabbynck H., Sivokozov I., Shifren A., Shen S. M., Sharp C., Shanmuganathan A., Sebastiani A., Scarlata S., Savas R., Sasaki S., Santeliz J., Santana ANC., Sanchez R., Salinas M., Saito S., Ryan F., Royo Prats J. A., Rosi E., Rokadia H., Robles Perez A., Rivera Ortega P., Rio Ramirez M., Righetti S., Reichner C., Ravaglia C., Ratanawatkul P., Ramalingam V., Rajasekaran A., Radzikowska E., Ra S. W., Quadrelli S., Precerutti J., Prasad J., Popa D., Pizzalato S., Piotrowski W., Pineiro A., Piloni D., Peros Golubicic T., Perez R., Pereira C., Pereira B., Perch M., Patel N., Patel D., Papanikolaou I., Papakosta D., Panselinas E., Pang Y. K., Pandya P., Padrao E., Ozdemir Kumbasar O., Overbeek M. J., Otto Minasian A., O'Riordan D., Ora J., Oldham J., Okutan O., Ohshimo S., Oguzulgen I. K., Ogura T., O'Donnell T., O'Dochartaigh C., O'Beirne S., Novikova L., Novelli L., Noth I., Nogueira Mendes Neto N., Niroumand M., Nieto A., Neves A., Nambiar A., Nair S., Nadama R., Murtagh E., Mura M., Muller Quernheim J., Mukhopadhyay A., Mukherjee S., Morisset J., Moran O., Mooney J., Moller J., Mogulkoc N., Miyamoto A., Milenkovic B., Mette S., Mejia M., Mei F., Mazzei M., Matsuda T., Mason C., Martinez Frances M., Mannarino S., Mancuzo E., Malli F., Malhotra P., Maillo M., Maia J., Mahdavian M., Madsen F., Luckhardt T., Lucht W., Low S. Y., Lopez Miguel C. P., Lipchik R., Levy S., Levin K., Lee K. L., Lederer D., Lammi M. R., Kwan H. Y., Kukreja S., Kruavit A., Kotecki M., Kolilekas L., Knoop H., Kiyan E., Kishaba T., King Biggs M., Khor Y. H., Khan A., Khalil N., Kedia R., Kebba N., Kawano Dourado L., Kapitan K., Kan C. D., Kalyoncu A. F., Kalluri M., Kabasakal Y., Jyothula S., Juretschke M. A., Jovanovic D., Jonkers R., Jo H., Izumi S., Ishii H., Ikeda S., Ibrahim A., Hyldgaard C., Hunninghake G., Huie T., Hufton A., Hu X., Hseih W. C., Hoyos R., Hoyles R., Holguin Rodriguez O., Hogan M. P., Hodgson U., Hilkin Sogoloff H., Herrera E., Henry B. M., Hellemons M., Hecimovic A., Hayashi R., Hart S., Harari S., Haney S., Hambly N., Hakkim R., Gutierrez M., Gripaldo R., Gomez A., Goh N., Godoy R., Gilbert C., Giannarakis I., Gasparini S., Garcha P., Furtado S., Fois A., Flood Page P., Fletcher S., Fiss E., Figueroa Casas J., Figueroa Casas M., Fiddler C. A., Ferrara G., Fernandez Casares M., Felton C., Faverio P., Fabro A. T., Estrada A., Errhalt P., Enomoto N., Enghelmayer J. I., El Kersh K., Eiger G., Dubaniewicz A., Drakopanagiotakis F., Disayabutr S., Dijkstra A., Diaz Patino J. C., Diaz Castanon J. J., Dhooria S., Dhasmana D. J., De Rosa M., De Luca S., Delobbe A., Delgado D., Delgado C., De La Fuente I., De Kruif M., De Gier M., De Andrade J., Davidsen J. R., Daoud B., Dalhoff K., Cotera Solano J. V., Costa A. N., Coronel S., Confalonieri M., Conemans L., Comellas A., Colella S., Clemente S., Clark J., Ciuffreda M., Chung C. L., Chong S. G., Chirita D., Chen P. L., Chaudhuri N., Chambers D., Chalmers G., Chairman D., Chai G. T., Chacon Chaves R., Cetinsu V., Ceruti M., Ceballos Zuniga C. O., Castillo D., Carbone R. G., Caminati A., Callejas Gonzalez F. J., Butler M., Bustos C., Bukowczan M., Buendia I., Brunetti G., Brockway B., Bresser P., Breseghello J., Bouros D., Botero Zaccour J. A., Borzone G., Borie R., Blum H. C., Blank J., Biswas A., Bennett D., Benjamin M., Belaconi I. N., Beirne P., Beckert L., Bastiampillai S., Bascom R., Bartholmai B., Barros M., Ban AYL., Balestro E., Baldi B., Baddini Martinez J., Baburao A., Babu S., Averyanov A., Avdeev S., Athanazio R., Atahan E., Asuquo B., Assayag D., Antuni J., Antillon S., Anderson K. C., Anderson A., Alwani F., Altinisik G., Alsouofi N., Allam J. S., Al Jahdali H., Al Farttoosi A., Alfaro T., Al Busaidi N., Alavi Foumani A., Agreda Vedia M. G., Agarwal A., Afridi F., Adeyeye O. O., Adegunsoye A., Adamali H., Abedini A., Walsh, S. L. F., Maher, T. M., Kolb, M., Poletti, V., Nusser, R., Richeldi, L., Vancheri, C., Wilsher, M. L., Antoniou, K. M., Behr, J., Bendstrup, E., Brown, K., Calandriello, L., Corte, T. J., Cottin, V., Crestani, B., Flaherty, K., Glaspole, I., Grutters, J., Inoue, Y., Kokosi, M., Kondoh, Y., Kouranos, V., Kreuter, M., Johannson, K., Judge, E., Ley, B., Margaritopoulos, G., Martinez, F. J., Molina-Molina, M., Morais, A., Nunes, H., Raghu, G., Ryerson, C. J., Selman, M., Spagnolo, P., Taniguchi, H., Tomassetti, S., Valeyre, D., Wijsenbeek, M., Wuyts, W., Hansell, D., Wells, A., Zhu, P. S., Yuan, Y., Yoshito Fukuda, C., Yoshimatsu, Y., Xaubet, A., Wong, A. M., White, P., Westney, G., West, A., Wessendorf, T., Waseda, Y., Wang, C., Vienna, J. M., Videnovic Ivanov, J., Vicens Zygmunt, V., Venero Caceres, M. C., Velasquez Pinto, G., Veitch, E., Vasakova, M., Varone, F., Varela, B. E., Van Hal, P., Van De Ven, M., Van Der Lee, I., Van Den Toorn, L., Urrutia Gajate, A., Urban, J., Ugarte Fornell, L. G., Tzouvelekis, A., Twohig, K., Turner, A., Trujillo, S., Triani, A., Traila, D., Torres, V., Tomioka, H., Tomii, K., Tomic, R., Toma, C., Tokgoz Akyil, F., Tobino, K., Tobar, R., Tiwari, A., Tibana, R., Tian, X., Thillai, M., Tham, W., Teo, F., Tekavec Trkanjec, J., Teixeira, P., Tarpey, D., Tapias, L., Tanizawa, K., Tanino, Y., Takada, T., Tabaj, G., Szolnoki, E., Swarnakar, R., Strambu, I., Sterclova, M., Spinks, K., Soo, C. I., Soltani, A., Solanki, S., Sobh, E., Soares, M. R., Smith, J., Smith, B., Slocum, P., Slabbynck, H., Sivokozov, I., Shifren, A., Shen, S. M., Sharp, C., Shanmuganathan, A., Sebastiani, A., Scarlata, S., Savas, R., Sasaki, S., Santeliz, J., Santana, Anc., Sanchez, R., Salinas, M., Saito, S., Ryan, F., Royo Prats, J. A., Rosi, E., Rokadia, H., Robles Perez, A., Rivera Ortega, P., Rio Ramirez, M., Righetti, S., Reichner, C., Ravaglia, C., Ratanawatkul, P., Ramalingam, V., Rajasekaran, A., Radzikowska, E., Ra, S. W., Quadrelli, S., Precerutti, J., Prasad, J., Popa, D., Pizzalato, S., Piotrowski, W., Pineiro, A., Piloni, D., Peros Golubicic, T., Perez, R., Pereira, C., Pereira, B., Perch, M., Patel, N., Patel, D., Papanikolaou, I., Papakosta, D., Panselinas, E., Pang, Y. K., Pandya, P., Padrao, E., Ozdemir Kumbasar, O., Overbeek, M. J., Otto Minasian, A., O'Riordan, D., Ora, J., Oldham, J., Okutan, O., Ohshimo, S., Oguzulgen, I. K., Ogura, T., O'Donnell, T., O'Dochartaigh, C., O'Beirne, S., Novikova, L., Novelli, L., Noth, I., Nogueira Mendes Neto, N., Niroumand, M., Nieto, A., Neves, A., Nambiar, A., Nair, S., Nadama, R., Murtagh, E., Mura, M., Muller Quernheim, J., Mukhopadhyay, A., Mukherjee, S., Morisset, J., Moran, O., Mooney, J., Moller, J., Mogulkoc, N., Miyamoto, A., Milenkovic, B., Mette, S., Mejia, M., Mei, F., Mazzei, M., Matsuda, T., Mason, C., Martinez Frances, M., Mannarino, S., Mancuzo, E., Malli, F., Malhotra, P., Maillo, M., Maia, J., Mahdavian, M., Madsen, F., Luckhardt, T., Lucht, W., Low, S. Y., Lopez Miguel, C. P., Lipchik, R., Levy, S., Levin, K., Lee, K. L., Lederer, D., Lammi, M. R., Kwan, H. Y., Kukreja, S., Kruavit, A., Kotecki, M., Kolilekas, L., Knoop, H., Kiyan, E., Kishaba, T., King Biggs, M., Khor, Y. H., Khan, A., Khalil, N., Kedia, R., Kebba, N., Kawano Dourado, L., Kapitan, K., Kan, C. D., Kalyoncu, A. F., Kalluri, M., Kabasakal, Y., Jyothula, S., Juretschke, M. A., Jovanovic, D., Jonkers, R., Jo, H., Izumi, S., Ishii, H., Ikeda, S., Ibrahim, A., Hyldgaard, C., Hunninghake, G., Huie, T., Hufton, A., Hu, X., Hseih, W. C., Hoyos, R., Hoyles, R., Holguin Rodriguez, O., Hogan, M. P., Hodgson, U., Hilkin Sogoloff, H., Herrera, E., Henry, B. M., Hellemons, M., Hecimovic, A., Hayashi, R., Hart, S., Harari, S., Haney, S., Hambly, N., Hakkim, R., Gutierrez, M., Gripaldo, R., Gomez, A., Goh, N., Godoy, R., Gilbert, C., Giannarakis, I., Gasparini, S., Garcha, P., Furtado, S., Fois, A., Flood Page, P., Fletcher, S., Fiss, E., Figueroa Casas, J., Figueroa Casas, M., Fiddler, C. A., Ferrara, G., Fernandez Casares, M., Felton, C., Faverio, P., Fabro, A. T., Estrada, A., Errhalt, P., Enomoto, N., Enghelmayer, J. I., El Kersh, K., Eiger, G., Dubaniewicz, A., Drakopanagiotakis, F., Disayabutr, S., Dijkstra, A., Diaz Patino, J. C., Diaz Castanon, J. J., Dhooria, S., Dhasmana, D. J., De Rosa, M., De Luca, S., Delobbe, A., Delgado, D., Delgado, C., De La Fuente, I., De Kruif, M., De Gier, M., De Andrade, J., Davidsen, J. R., Daoud, B., Dalhoff, K., Cotera Solano, J. V., Costa, A. N., Coronel, S., Confalonieri, M., Conemans, L., Comellas, A., Colella, S., Clemente, S., Clark, J., Ciuffreda, M., Chung, C. L., Chong, S. G., Chirita, D., Chen, P. L., Chaudhuri, N., Chambers, D., Chalmers, G., Chairman, D., Chai, G. T., Chacon Chaves, R., Cetinsu, V., Ceruti, M., Ceballos Zuniga, C. O., Castillo, D., Carbone, R. G., Caminati, A., Callejas Gonzalez, F. J., Butler, M., Bustos, C., Bukowczan, M., Buendia, I., Brunetti, G., Brockway, B., Bresser, P., Breseghello, J., Bouros, D., Botero Zaccour, J. A., Borzone, G., Borie, R., Blum, H. C., Blank, J., Biswas, A., Bennett, D., Benjamin, M., Belaconi, I. N., Beirne, P., Beckert, L., Bastiampillai, S., Bascom, R., Bartholmai, B., Barros, M., Ban, Ayl., Balestro, E., Baldi, B., Baddini Martinez, J., Baburao, A., Babu, S., Averyanov, A., Avdeev, S., Athanazio, R., Atahan, E., Asuquo, B., Assayag, D., Antuni, J., Antillon, S., Anderson, K. C., Anderson, A., Alwani, F., Altinisik, G., Alsouofi, N., Allam, J. S., Al Jahdali, H., Al Farttoosi, A., Alfaro, T., Al Busaidi, N., Alavi Foumani, A., Agreda Vedia, M. G., Agarwal, A., Afridi, F., Adeyeye, O. O., Adegunsoye, A., Adamali, H., Abedini, A., National Institute for Health Research, British Lung Foundation, Walsh, S, Maher, T, Kolb, M, Poletti, V, Nusser, R, Richeldi, L, Vancheri, C, Wilsher, M, Antoniou, K, Behr, J, Bendstrup, E, Brown, K, Calandriello, L, Corte, T, Cottin, V, Crestani, B, Flaherty, K, Glaspole, I, Grutters, J, Inoue, Y, Kokosi, M, Kondoh, Y, Kouranos, V, Kreuter, M, Johannson, K, Judge, E, Ley, B, Margaritopoulos, G, Martinez, F, Molina-Molina, M, Morais, A, Nunes, H, Raghu, G, Ryerson, C, Selman, M, Spagnolo, P, Taniguchi, H, Tomassetti, S, Valeyre, D, Wijsenbeek, M, Wuyts, W, Hansell, D, Wells, A, Zhu, P, Yuan, Y, Yoshito Fukuda, C, Yoshimatsu, Y, Xaubet, A, Wong, A, White, P, Westney, G, West, A, Wessendorf, T, Waseda, Y, Wang, C, Vienna, J, Videnovic Ivanov, J, Vicens Zygmunt, V, Venero Caceres, M, Velasquez Pinto, G, Veitch, E, Vasakova, M, Varone, F, Varela, B, Van Hal, P, Van De Ven, M, Van Der Lee, I, Van Den Toorn, L, Urrutia Gajate, A, Urban, J, Ugarte Fornell, L, Tzouvelekis, A, Twohig, K, Turner, A, Trujillo, S, Triani, A, Traila, D, Torres, V, Tomioka, H, Tomii, K, Tomic, R, Toma, C, Tokgoz Akyil, F, Tobino, K, Tobar, R, Tiwari, A, Tibana, R, Tian, X, Thillai, M, Tham, W, Teo, F, Tekavec Trkanjec, J, Teixeira, P, Tarpey, D, Tapias, L, Tanizawa, K, Tanino, Y, Takada, T, Tabaj, G, Szolnoki, E, Swarnakar, R, Strambu, I, Sterclova, M, Spinks, K, Soo, C, Soltani, A, Solanki, S, Sobh, E, Soares, M, Smith, J, Smith, B, Slocum, P, Slabbynck, H, Sivokozov, I, Shifren, A, Shen, S, Sharp, C, Shanmuganathan, A, Sebastiani, A, Scarlata, S, Savas, R, Sasaki, S, Santeliz, J, Santana, A, Sanchez, R, Salinas, M, Saito, S, Ryan, F, Royo Prats, J, Rosi, E, Rokadia, H, Robles Perez, A, Rivera Ortega, P, Rio Ramirez, M, Righetti, S, Reichner, C, Ravaglia, C, Ratanawatkul, P, Ramalingam, V, Rajasekaran, A, Radzikowska, E, Ra, S, Quadrelli, S, Precerutti, J, Prasad, J, Popa, D, Pizzalato, S, Piotrowski, W, Pineiro, A, Piloni, D, Peros Golubicic, T, Perez, R, Pereira, C, Pereira, B, Perch, M, Patel, N, Patel, D, Papanikolaou, I, Papakosta, D, Panselinas, E, Pang, Y, Pandya, P, Padrao, E, Ozdemir Kumbasar, O, Overbeek, M, Otto Minasian, A, O'Riordan, D, Ora, J, Oldham, J, Okutan, O, Ohshimo, S, Oguzulgen, I, Ogura, T, O'Donnell, T, O'Dochartaigh, C, O'Beirne, S, Novikova, L, Novelli, L, Noth, I, Nogueira Mendes Neto, N, Niroumand, M, Nieto, A, Neves, A, Nambiar, A, Nair, S, Nadama, R, Murtagh, E, Mura, M, Muller Quernheim, J, Mukhopadhyay, A, Mukherjee, S, Morisset, J, Moran, O, Mooney, J, Moller, J, Mogulkoc, N, Miyamoto, A, Milenkovic, B, Mette, S, Mejia, M, Mei, F, Mazzei, M, Matsuda, T, Mason, C, Martinez Frances, M, Mannarino, S, Mancuzo, E, Malli, F, Malhotra, P, Maillo, M, Maia, J, Mahdavian, M, Madsen, F, Luckhardt, T, Lucht, W, Low, S, Lopez Miguel, C, Lipchik, R, Levy, S, Levin, K, Lee, K, Lederer, D, Lammi, M, Kwan, H, Kukreja, S, Kruavit, A, Kotecki, M, Kolilekas, L, Knoop, H, Kiyan, E, Kishaba, T, King Biggs, M, Khor, Y, Khan, A, Khalil, N, Kedia, R, Kebba, N, Kawano Dourado, L, Kapitan, K, Kan, C, Kalyoncu, A, Kalluri, M, Kabasakal, Y, Jyothula, S, Juretschke, M, Jovanovic, D, Jonkers, R, Jo, H, Izumi, S, Ishii, H, Ikeda, S, Ibrahim, A, Hyldgaard, C, Hunninghake, G, Huie, T, Hufton, A, Hu, X, Hseih, W, Hoyos, R, Hoyles, R, Holguin Rodriguez, O, Hogan, M, Hodgson, U, Hilkin Sogoloff, H, Herrera, E, Henry, B, Hellemons, M, Hecimovic, A, Hayashi, R, Hart, S, Harari, S, Haney, S, Hambly, N, Hakkim, R, Gutierrez, M, Gripaldo, R, Gomez, A, Goh, N, Godoy, R, Gilbert, C, Giannarakis, I, Gasparini, S, Garcha, P, Furtado, S, Fois, A, Flood Page, P, Fletcher, S, Fiss, E, Figueroa Casas, J, Figueroa Casas, M, Fiddler, C, Ferrara, G, Fernandez Casares, M, Felton, C, Faverio, P, Fabro, A, Estrada, A, Errhalt, P, Enomoto, N, Enghelmayer, J, El Kersh, K, Eiger, G, Dubaniewicz, A, Drakopanagiotakis, F, Disayabutr, S, Dijkstra, A, Diaz Patino, J, Diaz Castanon, J, Dhooria, S, Dhasmana, D, De Rosa, M, De Luca, S, Delobbe, A, Delgado, D, Delgado, C, De La Fuente, I, De Kruif, M, De Gier, M, De Andrade, J, Davidsen, J, Daoud, B, Dalhoff, K, Cotera Solano, J, Costa, A, Coronel, S, Confalonieri, M, Conemans, L, Comellas, A, Colella, S, Clemente, S, Clark, J, Ciuffreda, M, Chung, C, Chong, S, Chirita, D, Chen, P, Chaudhuri, N, Chambers, D, Chalmers, G, Chairman, D, Chai, G, Chacon Chaves, R, Cetinsu, V, Ceruti, M, Ceballos Zuniga, C, Castillo, D, Carbone, R, Caminati, A, Callejas Gonzalez, F, Butler, M, Bustos, C, Bukowczan, M, Buendia, I, Brunetti, G, Brockway, B, Bresser, P, Breseghello, J, Bouros, D, Botero Zaccour, J, Borzone, G, Borie, R, Blum, H, Blank, J, Biswas, A, Bennett, D, Benjamin, M, Belaconi, I, Beirne, P, Beckert, L, Bastiampillai, S, Bascom, R, Bartholmai, B, Barros, M, Ban, A, Balestro, E, Baldi, B, Baddini Martinez, J, Baburao, A, Babu, S, Averyanov, A, Avdeev, S, Athanazio, R, Atahan, E, Asuquo, B, Assayag, D, Antuni, J, Antillon, S, Anderson, K, Anderson, A, Alwani, F, Altinisik, G, Alsouofi, N, Allam, J, Al Jahdali, H, Al Farttoosi, A, Alfaro, T, Al Busaidi, N, Alavi Foumani, A, Agreda Vedia, M, Agarwal, A, Afridi, F, Adeyeye, O, Adegunsoye, A, Adamali, H, Abedini, A, and Pulmonary Medicine

Subjects
Male, Pediatrics, International Cooperation, Respiratory System, Hospitals, University, Idiopathic pulmonary fibrosis, 0302 clinical medicine, Cohen's kappa, Diagnosis, UK, 030212 general & internal medicine, Medical diagnosis, Referral and Consultation, Pulmonologists, Idiopathic Pulmonary Fibrosi, Interstitial lung disease, 11 Medical And Health Sciences, Middle Aged, respiratory system, Prognosis, Hospitals, humanities, Dimensional Measurement Accuracy, Clinical Competence, Diagnosis, Differential, Diagnostic Techniques, Respiratory System, Female, Humans, Idiopathic Pulmonary Fibrosis, Quality of Health Care, Reproducibility of Results, Human, Cohort study, Pulmonary and Respiratory Medicine, medicine.medical_specialty, Prognosi, education, MEDLINE, Reproducibility of Result, INTERSTITIAL PNEUMONIA, Interstitial Lung Diseases, 03 medical and health sciences, Internal medicine, PARENCHYMAL LUNG-DISEASE, MANAGEMENT, medicine, Idiopathic pulmonary fibrosis, diagnosis, Pulmonologist, University, business.industry, MORTALITY, Original Articles, medicine.disease, respiratory tract diseases, Diagnostic Techniques, IPF Project Consortium, 030228 respiratory system, Differential, INTEROBSERVER AGREEMENT, UPDATE, COOPERAÇÃO INTERNACIONAL, Differential diagnosis, business
Abstract

We conducted an international study of idiopathic pulmonary fibrosis (IPF) diagnosis among a large group of physicians and compared their diagnostic performance to a panel of IPF experts. A total of 1141 respiratory physicians and 34 IPF experts participated. Participants evaluated 60 cases of interstitial lung disease (ILD) without interdisciplinary consultation. Diagnostic agreement was measured using the weighted kappa coefficient (κw). Prognostic discrimination between IPF and other ILDs was used to validate diagnostic accuracy for first-choice diagnoses of IPF and were compared using the C-index. A total of 404 physicians completed the study. Agreement for IPF diagnosis was higher among expert physicians (κw=0.65, IQR 0.53–0.72, p20 years of experience (C-index=0.72, IQR 0.0–0.73, p=0.229) and non-university hospital physicians with more than 20 years of experience, attending weekly MDT meetings (C-index=0.72, IQR 0.70–0.72, p=0.052), did not differ significantly (p=0.229 and p=0.052 respectively) from the expert panel (C-index=0.74 IQR 0.72–0.75). Experienced respiratory physicians at university-based institutions diagnose IPF with similar prognostic accuracy to IPF experts. Regular MDT meeting attendance improves the prognostic accuracy of experienced non-university practitioners to levels achieved by IPF experts., Academic status, access to MDT meetings and clinician experience predict accuracy of a clinical diagnosis of IPF http://ow.ly/k43W30cTMg1

Published
2017
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30. Analyse intermédiaire des patients atteints de pneumopathie interstitielle diffuse (PID) - Étude STARLINER

Author

Wijsenbeek, M.S., primary, Bendstrup, E., additional, Valenzuela, C., additional, Henry, M.T., additional, Moor, C., additional, Jouneau, S., additional, Fois, A., additional, Moran, O., additional, Anees, S., additional, Mirt, M., additional, Bengus, M., additional, Gilberg, F., additional, Kirchgaessler, K.U., additional, and Vancheri, C., additional

Published
2020
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36. Choosing between bad, worse and worst: what is the preferred mode of delivery for failure of the second stage of labor?.

Author

Hendler, I., Kirshenbaum, M., Barg, M., Kees, S., Mazaki-Tovi, S., Moran, O., Kalter, A., and Schiff, E.

Subjects
DELIVERY (Obstetrics), DYSTOCIA, LABOR complications (Obstetrics), CESAREAN section, PREGNANCY complications, COMPARATIVE studies, INFECTION, LABOR (Obstetrics), LONGITUDINAL method, RESEARCH methodology, EVALUATION of medical care, MEDICAL cooperation, OBSTETRICAL extraction, OBSTETRICAL forceps, PREGNANCY, PUERPERAL disorders, RESEARCH, EVALUATION research, TREATMENT effectiveness, RETROSPECTIVE studies
Abstract

Objective: To determine the preferred mode of delivery (vacuum, forceps or cesarean delivery) for second-stage dystocia.Methods: Retrospective cohort study of women delivered by forceps, vacuum or cesarean delivery due to abnormalities of the second stage of labor. Primary outcome included neonatal and maternal composite adverse effects.Results: A total of 547 women were included: 150 (27.4%) had forceps delivery, 200 (36.5%) had vacuum extraction, and 197 (36.1%) had cesarean section. The rate of neonatal composite outcome was significantly increased in vacuum extraction (27%) compared to forceps delivery (14.7%) or cesarean section (9.7%) (p < 0.001). There was no difference in the rate of maternal composite outcome among the groups. Both operative vaginal delivery modes were associated with significantly lower rate of postpartum infection compared to cesarean delivery (0% versus 3%, p = 0.004).Conclusion: Operative vaginal delivery was associated with reduced postpartum infection compared to cesarean section. Forceps delivery was associated with reduced risk for adverse neonatal outcome compared to vacuum extraction, with no increase in the risk of composite maternal complications. [ABSTRACT FROM AUTHOR]

Published
2017
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39. Factors influencing general practice nurse's implementation of culturally responsive care, using normalization process theory: A cross‐sectional study.

Author

Oakley, S., Manning, M., Macfarlane, A., Murphy, A., Loftus‐Moran, O., and Markey, K.

Subjects
*CONVENIENCE sampling (Statistics), *PEARSON correlation (Statistics), *CROSS-sectional method, *NURSES, *PARTICIPANT observation, *EMIGRATION & immigration
Abstract

Aims Design Methods Results Conclusion Impact Patient or Public Contribution To explore levers and barriers to providing culturally responsive care for general practice nurses (GPNs) using normalization process theory.A self‐administered online cross‐sectional survey.A participatory co‐designed adapted version of the normalization of complex interventions measure (NoMAD) validated tool was distributed to a convenience sample of GPNs between December 2022 and February 2023. The sample comprised of GPNs working in general practice services in Ireland (n = 122). Data were analysed using descriptive and analytical statistics (Pearson correlations) and principles of content analysis. This study was conducted and reported in line with the Consensus‐Based Checklist for Reporting of Survey Studies (CROSS).GPNs in this study indicated their familiarity with, acknowledged the importance of and were committed to, providing culturally responsive care. However, implementing culturally responsive care in daily practice was problematic due to insufficient education and training, scarcity of resources and supports and a lack of organizational leadership. Subsequently, GPNs experience difficulties adapting everyday practices to respond appropriately to the care needs of culturally and linguistically diverse (CaLD) patients.This analysis highlights the necessity of exploring the intricacies of factors that influence capabilities and capacity for providing culturally responsive care. Despite demonstrating awareness of the importance of providing nursing care that responds to the needs of CaLD patients, GPNs do not have full confidence or capacity to integrate culturally responsive care into their daily work practices.Using normalization process theory, this study elucidates for the first time how GPNs in Ireland make sense of, legitimize, enact and sustain culturally responsive care as a routine way of working. It illuminates the multitude of micro‐level (individual), meso‐level (organizational) and macro‐level (structural) factors that require attention for normalizing culturally responsive care in general practice services.The study question was identified in a participatory research prioritization for Irish research about migrant health that involved migrants in the process. [ABSTRACT FROM AUTHOR]

Published
2024
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40. Flexible strained membranes of multiferroic TbMnO3.

Author

Shi, H., Ringe, F., Wang, D., Moran, O., Nayak, K., Jaiswal, A. K., Tacon, M. Le, and Fuchs, D.

Subjects
*POLARIZATION (Electricity), *LATTICE constants, *FLEXIBLE electronics, *CHEMICAL bond lengths, *ELASTICITY
Abstract

The multiferroic properties of TbMnO3 demonstrate high versatility under applied pressure, making the material potentially suitable for use in flexible electronics. Here, we report on the preparation of elastic freestanding TbMnO3 membranes with dominant (001) or (010) crystallographic out-of-plane orientation. Membranes with a thickness of 20 nm display orthorhombic bulk-like relaxed lattice parameters with strong suppression of twinning for the (010) oriented membranes. Strain in flexible membranes was tuned using a commercial strain cell device and characterized by Raman spectroscopy. The B1g out-of-phase oxygen-stretching mode, representative of the Mn–O bond distance, systematically shifts to lower energy with increasing strain (εmax ≈ 0.5%). The flexibility and elastic properties of the membranes allow for specific manipulation of the multiferroic state by strain, whereas the choice of the crystallographic orientation gives the possibility of an in- or out-of-plane electric polarization. [ABSTRACT FROM AUTHOR]

Published
2024
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41. 289P Non-tandem duplications in DMD: impacts on genetic counseling and medical decision making.

Author

Gross, B., Higginbotham, E., Lau, L., Sung, W., Moran, O., Hasnain, A., Stavropoulos, D., Bergeron, M. Beaulieu, Boycott, K., McNiven, V., Liu, R., and Matesanz, S.

Subjects
*PRENATAL genetic testing, *FERTILIZATION in vitro, *GENETIC testing, *FLUORESCENCE in situ hybridization, *GENETIC counseling
Abstract

Increased access to and utilization of genetic testing for diagnostic and family planning purposes have led to more children or fetuses incidentally identified to be at risk for dystrophinopathy. We present 3 unrelated cases of a likely benign non-tandem in-frame duplication of exons 45-51 of the DMD gene, inserted into chromosome 17 at q21 (chr17:40,203,142‐40,204,487; GRCh38/UCSC hg38). In case 1, a mother undergoing in vitro fertilization is informed she is a carrier for dystrophinopathy and wishes to proceed with testing of male embryos. Subsequent familial testing to create probes through sequencing with a genome backbone revealed a non-tandem DMD duplication. Case 2 is a 1-day-old male infant with multiple congenital anomalies and Case 3 is a 3-year-old female with developmental delay; both underwent a chromosomal microarray with subsequent FISH analysis showing the same non-tandem DMD duplication. Genome sequencing identified the breakpoints and resolved the genomic structure. In both patients, the duplication was paternally inherited. The father of Case 2 is unaffected, and the father of Case 3 has developmental delay without muscle symptoms. These unrelated families with the same partial DMD duplication are not at risk for dystrophinopathy, as the males have an intact copy of DMD and lack of dystrophinopathy symptoms. Instead, they have an identical complex structural rearrangement, likely a benign variant. As DMD gene duplications occur in ∼10% of dystrophinopathy, this information is vital for future patients with the same exons 45-51 duplication. In the era of advancing dystrophinopathy treatments and increased prenatal genetic testing, accurate classification of in-frame DMD duplications is essential, especially when found in asymptomatic individuals. Without further analysis of such duplications, the significant financial burden of preimplantation genetic testing and potential misguidance in medical management and family planning decisions based on assumed dystrophinopathy risk may occur. [ABSTRACT FROM AUTHOR]

Published
2024
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42. Choosing between bad, worse and worst: what is the preferred mode of delivery for failure of the second stage of labor?.

Author

Hendler, I., Kirshenbaum, M., Barg, M., Kees, S., Mazaki-Tovi, S., Moran, O., Kalter, A., and Schiff, E.

Subjects
*DELIVERY (Obstetrics), *DYSTOCIA, *LABOR complications (Obstetrics), *CESAREAN section, *PREGNANCY complications, *COMPARATIVE studies, *INFECTION, *LABOR (Obstetrics), *LONGITUDINAL method, *RESEARCH methodology, *EVALUATION of medical care, *MEDICAL cooperation, *OBSTETRICAL extraction, *OBSTETRICAL forceps, *PREGNANCY, *PUERPERAL disorders, *RESEARCH, *EVALUATION research, *TREATMENT effectiveness, *RETROSPECTIVE studies
Abstract

Objective: To determine the preferred mode of delivery (vacuum, forceps or cesarean delivery) for second-stage dystocia.Methods: Retrospective cohort study of women delivered by forceps, vacuum or cesarean delivery due to abnormalities of the second stage of labor. Primary outcome included neonatal and maternal composite adverse effects.Results: A total of 547 women were included: 150 (27.4%) had forceps delivery, 200 (36.5%) had vacuum extraction, and 197 (36.1%) had cesarean section. The rate of neonatal composite outcome was significantly increased in vacuum extraction (27%) compared to forceps delivery (14.7%) or cesarean section (9.7%) (p < 0.001). There was no difference in the rate of maternal composite outcome among the groups. Both operative vaginal delivery modes were associated with significantly lower rate of postpartum infection compared to cesarean delivery (0% versus 3%, p = 0.004).Conclusion: Operative vaginal delivery was associated with reduced postpartum infection compared to cesarean section. Forceps delivery was associated with reduced risk for adverse neonatal outcome compared to vacuum extraction, with no increase in the risk of composite maternal complications. [ABSTRACT FROM AUTHOR]

Published
2017
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43. Lack of Kcnn4 improves mucociliary clearance in muco-obstructive lung disease

Author

Anita Guequén, Ambra Gianotti, Llilian Arzola, Manuel Villalón, Carlos A. Flores, Marcus A. Mall, Luis J. V. Galietta, Amber R. Philp, Génesis Vega, Olga Zegarra-Moran, Vega, G., Guequen, A., Philp, A. R., Gianotti, A., Arzola, L., Villalon, M., Zegarra-Moran, O., Galietta, L. J. V., Mall, M. A., and Flores, C. A.

Subjects
0301 basic medicine, Male, Pulmonology, Mucociliary clearance, Mice, Transgenic, Epithelium, Potassium channels, 03 medical and health sciences, KCNN4, 0302 clinical medicine, In vivo, medicine, Animals, Humans, Cilia, Lung Diseases, Obstructive, Potassium channel, Lung, Cells, Cultured, Inflammation, Chemistry, Sodium, General Medicine, Hyperpolarization (biology), respiratory system, Intermediate-Conductance Calcium-Activated Potassium Channels, Mucus, Mice, Mutant Strains, Cell biology, Mice, Inbred C57BL, Disease Models, Animal, 030104 developmental biology, medicine.anatomical_structure, Mucociliary Clearance, 030220 oncology & carcinogenesis, Respiratory epithelium, Medicine, Calcium, Female, Ex vivo, Epithelial transport of ions and water, Research Article
Abstract

Airway mucociliary clearance (MCC) is the main mechanism of lung defense keeping airways free of infection and mucus obstruction. Airway surface liquid volume, ciliary beating, and mucus are central for proper MCC and critically regulated by sodium absorption and anion secretion. Impaired MCC is a key feature of muco-obstructive diseases. The calcium-activated potassium channel KCa.3.1, encoded by Kcnn4, participates in ion secretion, and studies showed that its activation increases Na+ absorption in airway epithelia, suggesting that KCa3.1-induced hyperpolarization was sufficient to drive Na+ absorption. However, its role in airway epithelium is not fully understood. We aimed to elucidate the role of KCa3.1 in MCC using a genetically engineered mouse. KCa3.1 inhibition reduced Na+ absorption in mouse and human airway epithelium. Furthermore, the genetic deletion of Kcnn4 enhanced cilia beating frequency and MCC ex vivo and in vivo. Kcnn4 silencing in the Scnn1b-transgenic mouse (Scnn1btg/+), a model of muco-obstructive lung disease triggered by increased epithelial Na+ absorption, improved MCC, reduced Na+ absorption, and did not change the amount of mucus but did reduce mucus adhesion, neutrophil infiltration, and emphysema. Our data support that KCa3.1 inhibition attenuated muco-obstructive disease in the Scnn1btg/+ mice. K+ channel modulation may be a therapeutic strategy to treat muco-obstructive lung diseases., Silencing the calcium-activated potassium channel KCa.3.1 improves mucociliary clearance in muco-obstructive lung disease by decreasing sodium absorption in the airways.

Published
2020

44. Study of the Incorporation of Gel and Aloe vera Peel Extract in a Polymer Matrix Based on Polyvinylpyrrolidone.

Author

Gutiérrez Rafael BJ, Zaca Moran O, Delgado Macuil RJ, Martínez Gutiérrez H, García Juárez M, and Lopez Gayou V

Abstract

The development of dressings based on electrospun membranes with polymers and plant extracts is an interesting approach to skin regeneration, providing elements to prevent contamination and a matrix that accelerates the healing process. We developed a membrane composed of polyvinylpyrrolidone (PVP), gel and Aloe vera peel extract via the electrospinning technique. Additionally, an optimal ratio of PVP/ Av gel/ Av skin extract was determined to facilitate membrane formation. Electrospun membranes were obtained with fiber diameters of 1403 ± 57.4 nm for the PVP and 189.2 ± 11.4 nm for PVP/ Av gel/ Av peel extract, confirming that the use of extracts generally reduced the fiber diameter. The incorporation of gel and peel extract of Aloe vera into the electrospun membrane was analyzed via FTIR and UV-Vis spectroscopies. FTIR revealed the presence of functional groups associated with phenolic compounds such as aloin, aloe-emodin, emodin and aloesin, which was confirmed by UV-Vis, revealing absorption bands corresponding to aloin, phenols and carbonyl groups. This finding provides evidence of the effective integration and prevalence of bioactive compounds of a phenolic and polysaccharide nature from the gel and the Av skin extract in the electrospun fibers, resulting in an advanced membrane that could improve and accelerate the healing process and protect the wound from bacterial infections.

Published
2024
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45. Perinatal Outcome following the Suspension of Intrapartum Oxygen Treatment.

Author

Bart Y, Meyer R, Moran O, Tsur A, Kassif E, Mohr-Sasson A, Hamilton E, Sivan E, Yinon Y, Mazaki-Tovi S, and Yoeli R

Subjects
Humans, Female, Pregnancy, Retrospective Studies, Infant, Newborn, Adult, Pregnancy Outcome, Fetal Distress, Oxygen Inhalation Therapy methods, Heart Rate, Fetal, Cesarean Section statistics & numerical data
Abstract

Objective: This study aimed to evaluate whether the suspension of intrapartum maternal oxygen supplementation for nonreassuring fetal heart rate is associated with adverse perinatal outcomes., Study Design: A retrospective cohort study, including all individuals that underwent labor in a single tertiary medical center. On April 16, 2020, the routine use of intrapartum oxygen for category II and III fetal heart rate tracings was suspended. The study group included individuals with singleton pregnancies that underwent labor during the 7 months between April 16, 2020, and November 14, 2020. The control group included individuals that underwent labor during the 7 months before April 16, 2020. Exclusion criteria included elective cesarean section, multifetal pregnancy, fetal death, and maternal oxygen saturation <95% during delivery. The primary outcome was defined as the rate of composite neonatal outcome, consisting of arterial cord pH <7.1, mechanical ventilation, respiratory distress syndrome, necrotizing enterocolitis, intraventricular hemorrhage grade 3/4, and neonatal death. The secondary outcome was the rate of cesarean and operative delivery., Results: The study group included 4,932 individuals, compared with 4,906 individuals in the control group. The suspension of intrapartum oxygen treatment was associated with a significant increase in the rate of composite neonatal outcome (187 [3.8%] vs. 120 [2.4%], p  < 0.001), including the rate of abnormal cord arterial pH <7.1 (119 [2.4%] vs. 56 [1.1%], p  < 0.01). A higher rate of cesarean section due to nonreassuring fetal heart rate was noted in the study group (320 [6.5%] vs. 268 [5.5%], p  = 0.03).A logistic regression analysis revealed that the suspension of intrapartum oxygen treatment was independently associated with the composite neonatal outcome (adjusted odds ratio = 1.55 [95% confidence interval, 1.23-1.96]) while adjusting for suspected chorioamnionitis, intrauterine growth restriction, and recent coronavirus disease 2019 exposure., Conclusion: Suspension of intrapartum oxygen treatment for nonreassuring fetal heart rate was associated with higher rates of adverse neonatal outcomes and urgent cesarean section due to fetal heart rate., Key Points: · The available data on intrapartum maternal oxygen supplementation are equivocal.. · Suspension of maternal oxygen for nonreassuring fetal heart rate during labor was associated with adverse neonatal outcomes.. · Oxygen treatment might still be important and relevant during labor.., Competing Interests: None declared., (Thieme. All rights reserved.)

Published
2024
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46. Identification of determinants of lipid and ion transport in TMEM16/anoctamin proteins through a Bayesian statistical analysis.

Author

Moran O and Tammaro P

Subjects
Bayes Theorem, Anoctamin-1 metabolism, Ion Transport, Calcium metabolism, Anoctamins metabolism, Lipids
Abstract

The TMEM16/Anoctamin protein family (TMEM16x) is composed of members with different functions; some members form Ca 2+ -activated chloride channels, while others are lipid scramblases or combine the two functions. TMEM16x proteins are typically activated in response to agonist-induced rises of intracellular Ca 2+ ; thus, they couple Ca 2+ -signalling with cell electrical activity or plasmalemmal lipid homeostasis. The structural domains underlying these functions are not fully defined. We used a Naïve Bayes classifier to gain insights into these domains. The method enabled identification of regions involved in either ion or lipid transport, and suggested domains for possible pharmacological exploitation. The method allowed the prediction of the transport property of any given TMEM16x. We envisage this strategy could be exploited to illuminate the structure-function relationship of any protein family composed of members playing different molecular roles., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)

Published
2024
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47. Generation of PVP Membranes Using Extracts/Phenolic Fraction of Dysphania ambrosioides , Opuntia ficus-indica , and Tradescantia pallida .

Author

Zaca Moran O, García Suastegui WA, Cruz San Juan JH, López Méndez LC, and López Gayou V

Abstract

In the present work, electrospun membranes of polyvinylpyrrolidone (PVP) nanofibers were manufactured using extracts and phenolic fractions of Dysphania ambrosioides (epazote), Opuntia ficus-indica (nopal), and Tradescantia pallida (chicken grass). The characterization of the membranes was carried out by scanning electron microscopy and Fourier transform infrared spectroscopy. The membranes synthesized through the use of the extracts generally showed a slight decrease in the diameter of the fibers but an increase in the size of the pores due to the presence of nanoparticles (rosaries) on the surface of the fibers, while the membranes synthesized using the phenolic fraction demonstrated an inversely proportional relationship between the compounds of this family with the diameter of the fibers and the size of the pore, allowing to elucidate part of the polymerization mechanisms of PVP nanofibers, in addition to proposing a reaction mechanism in the interaction between PVP and phenolic compounds for surface functionalization. Likewise, we demonstrate that the generation of reaction seeds through functionalization allows the addition of other compounds to the fibers in the membranes synthesized using the complete extract.

Published
2023
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48. In Silico and In Vitro Evaluation of the Mechanism of Action of Three VX809-Based Hybrid Derivatives as Correctors of the F508del CFTR Protein.

Author

Baroni D, Scarano N, Ludovico A, Brandas C, Parodi A, Lunaccio D, Fossa P, Moran O, Cichero E, and Millo E

Abstract

Cystic fibrosis (CF), the most common autosomal recessive fatal genetic disease in the Caucasian population, is caused by mutations in the gene encoding the cystic fibrosis transmembrane conductance regulator (CFTR), an anion channel that regulates salt and water transport across a variety of secretory epithelia. Deletion of phenylalanine at position 508, F508del, the most common CF-causing mutation, destabilises the CFTR protein, causing folding and trafficking defects that lead to a dramatic reduction in its functional expression. Small molecules called correctors have been developed to rescue processing-defective F508del CFTR. We have combined in silico and in vitro approaches to investigate the mechanism of action and potential as CFTR correctors of three hybrid derivatives ( 2a , 7a , and 7m ) obtained by merging the amino-arylthiazole core with the benzodioxole carboxamide moiety characterising the corrector lumacaftor. Molecular modelling analyses suggested that the three hybrids interact with a putative region located at the MSD1/NBD1 interface. Biochemical analyses confirmed these results, showing that the three molecules affect the expression and stability of the F508del NBD1. Finally, the YFP assay was used to evaluate the influence of the three hybrid derivatives on F508del CFTR function, assessing that their effect is additive to that of the correctors VX661 and VX445 . Our study shows that the development and testing of optimised compounds targeting different structural and functional defects of mutant CFTR is the best strategy to provide more effective correctors that could be used alone or in combination as a valuable therapeutic option to treat an even larger cohort of people affected by CF.

Published
2023
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49. Drug-resistant focal epilepsy in a girl with SETD5-related intellectual disability.

Author

Manokaran RK, Ochi A, Kerr E, Costain G, Moran O, Otsubo H, Whitney R, and Jain P

Subjects
Female, Humans, Methyltransferases, Drug Resistant Epilepsy drug therapy, Epilepsies, Partial complications, Epilepsies, Partial drug therapy, Intellectual Disability complications, Intellectual Disability genetics
Abstract

None., Competing Interests: Declaration of Competing Interest None of the authors have any conflict of interest to disclose., (Copyright © 2023 British Epilepsy Association. Published by Elsevier Ltd. All rights reserved.)

Published
2023
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50. α S1 -Casein-Loaded Proteo-liposomes as Potential Inhibitors in Amyloid Fibrillogenesis: In Vivo Effects on a C. elegans Model of Alzheimer's Disease.

Author

Paterna A, Santonicola P, Di Prima G, Rao E, Raccosta S, Zampi G, Russo C, Moran O, Manno M, Di Schiavi E, Librizzi F, and Carrotta R

Subjects
Animals, Humans, Amyloid beta-Peptides metabolism, Liposomes, Caseins pharmacology, Caenorhabditis elegans, Amyloid chemistry, Alzheimer Disease drug therapy, Alzheimer Disease metabolism
Abstract

According to the amyloid hypothesis, in the early phases of Alzheimer's disease (AD), small soluble prefibrillar aggregates of the amyloid β-peptide (Aβ) interact with neuronal membranes, causing neural impairment. Such highly reactive and toxic species form spontaneously and transiently in the amyloid building pathway. A therapeutic strategy consists of the recruitment of these intermediates, thus preventing aberrant interaction with membrane components (lipids and receptors), which in turn may trigger a cascade of cellular disequilibria. Milk α s1 -Casein is an intrinsically disordered protein that is able to inhibit Aβ amyloid aggregation in vitro , by sequestering transient species. In order to test α s1 -Casein as an inhibitor for the treatment of AD, it needs to be delivered in the place of action. Here, we demonstrate the use of large unilamellar vesicles (LUVs) as suitable nanocarriers for α s1 -Casein. Proteo-LUVs were prepared and characterized by different biophysical techniques, such as multiangle light scattering, atomic force imaging, and small-angle X-ray scattering; α s1 -Casein loading was quantified by a fluorescence assay. We demonstrated on a C. elegans AD model the effectiveness of the proposed delivery strategy in vivo . Proteo-LUVs allow efficient administration of the protein, exerting a positive functional readout at very low doses while avoiding the intrinsic toxicity of α s1 -Casein. Proteo-LUVs of α s1 -Casein represent an effective proof of concept for the exploitation of partially disordered proteins as a therapeutic strategy in mild AD conditions.

Published
2023
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