85 results on '"Massot-Cladera, Malen"'
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2. Impact of maternal Bifidobacterium breve M-16V and scGOS/lcFOS supplementation during pregnancy and lactation on the maternal immune system and milk composition
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Saez-Fuertes, Laura, Kapravelou, Garyfallia, Grases-Pinto, Blanca, Massot-Cladera, Malen, Bernabeu, Manuel, Knipping, Karen, Garssen, Johan, Bourdet-Sicard, Raphaelle, Castell, Margarida, Rodriguez-Lagunas, Maria Jose, Collado, Maria Carmen, Perez-Cano, Francisco Jose, Saez-Fuertes, Laura, Kapravelou, Garyfallia, Grases-Pinto, Blanca, Massot-Cladera, Malen, Bernabeu, Manuel, Knipping, Karen, Garssen, Johan, Bourdet-Sicard, Raphaelle, Castell, Margarida, Rodriguez-Lagunas, Maria Jose, Collado, Maria Carmen, and Perez-Cano, Francisco Jose
- Abstract
Introduction: Maternal synbiotic supplementation during pregnancy and lactation can significantly influence the immune system. Prebiotics and probiotics have a positive impact on the immune system by preventing or ameliorating among others intestinal disorders. This study focused on the immunomodulatory effects of B. breve M-16V and short chain galacto-oligosaccharides (scGOS)/long chain fructo-oligosachairdes (lcFOS), including systemic and mucosal compartments and milk composition. Methods: Lewis rats were orally administered with the synbiotic or vehicle during pregnancy (21 days) and lactation (21 days). At the weaning day, small intestine (SI), mammary gland (MG), adipose tissue, milk, mesenteric lymph nodes (MLN), salivary gland (SG), feces and cecal content were collected from the mothers. Results: The immunoglobulinome profile showed increased IgG2c in plasma and milk, as well as elevated sIgA in feces at weaning. The supplementation improved lipid metabolism through enhanced brown adipose tissue activity and reinforced the intestinal barrier by increasing the expression of Muc3, Cldn4, and Ocln. The higher production of short chain fatty acids in the cecum and increased Bifidobacterium counts suggest a potential positive impact on the gastrointestinal tract. Discussion: These findings indicate that maternal synbiotic supplementation during gestation and lactation improves their immunological status and improved milk composition.
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- 2024
3. A Maternal Diet Enriched in Fiber and Polyphenols during Pregestation, Gestation, and Lactation Has an Intestinal Trophic Effect in Both the Dam and the Offspring
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Ceballos-Sánchez, Daniela, primary, Casanova-Crespo, Sergi, additional, Rodríguez-Lagunas, Mara J., additional, Castell, Margarida, additional, Massot-Cladera, Malen, additional, and Pérez-Cano, Francisco J., additional
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- 2023
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4. Mediterranean-like Diet May Modulate Acute Inflammation in Wistar Rats
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Casanova-Crespo, Sergi, primary, Ceballos-Sánchez, Daniela, additional, Rodríguez-Lagunas, María J., additional, Massot-Cladera, Malen, additional, Castell, Margarida, additional, and Pérez-Cano, Francisco J., additional
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- 2023
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5. Influence of a Cocoa-Enriched Diet on the Intestinal Immune System and Microbiota
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Camps-Bossacoma, Mariona, primary, Massot-Cladera, Malen, additional, Pérez-Cano, Francisco J., additional, and Castell, Margarida, additional
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- 2019
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6. List of Contributors
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Abbasnezhad, Amir, primary, Acosta, Andrés, additional, Arunima, Aryashree, additional, Azagra-Boronat, Ignasi, additional, Baliga, Manjeshwar Shrinath, additional, Bayir, Ayse Gunes, additional, Bernhardt, Cassandra, additional, Bhagatwala, Jigar, additional, Biswas, Debabrata, additional, Calderón, Gerardo, additional, Camps-Bossacoma, Mariona, additional, Carrion, Michael, additional, Castell, Margarida, additional, Choghakhori, Razieh, additional, Coppola, Vincenzo, additional, Das, Jugal Kishore, additional, Day, Andrew S., additional, DemirkesenBiçak, Hilal, additional, Doğan, Murat, additional, Fayad, Raja, additional, Ferreira, Adaliene Versiani Matos, additional, Fiagbor, Rita, additional, George, Thomas, additional, Gyawali, Rabin, additional, Hekmatdoost, Azita, additional, Hutson, J.M., additional, Ibrahim, Salam A., additional, Issa, Aseel T., additional, Kalekhan, Faizan, additional, Kaur, Kamaljit, additional, Kearsey, I., additional, Kiziltan, Huriye Senay, additional, Kocyigit, Abdurrahim, additional, Kuda, Takashi, additional, Lei, Shaohua, additional, Massot-Cladera, Malen, additional, McRorie, Johnson W., additional, Mokhtari, Zeinab, additional, Nagarajan, Vinod, additional, Newman, Robert H., additional, Nwamaioha, Nwadiuto, additional, Patel, Puja, additional, Peng, Mengfei, additional, Pérez-Cano, Francisco J., additional, Rao, Suresh, additional, Rodríguez-Lagunas, Maria José, additional, Saldanha, Elroy, additional, Saxena, Arpit, additional, Scarpato, Elena, additional, Sharma, Amol, additional, Shomali, T., additional, Silveira, Ana Letícia Malheiros, additional, Southwell, B.R., additional, Staiano, Annamaria, additional, Suar, Mrutyunjay, additional, Tahergorabi, Reza, additional, Teixeira, Mauro Martins, additional, Tekiner, İsmail Hakkı, additional, Venkatesh, Ponemone, additional, Yari, Zahra, additional, Yik, Y.I., additional, Yuan, Lijuan, additional, Zhong, Wei, additional, Zhou, Zhanxiang, additional, and Zimmerman, Tahl, additional
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- 2019
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7. Mediterranean-like Diet May Modulate Acute Inflammation in Wistar Rats †.
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Casanova-Crespo, Sergi, Ceballos-Sánchez, Daniela, Rodríguez-Lagunas, María J., Massot-Cladera, Malen, Castell, Margarida, and Pérez-Cano, Francisco J.
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LABORATORY rats ,MEDITERRANEAN diet ,RATS ,DIETARY fiber ,INFLAMMATION ,BIOACTIVE compounds ,CARRAGEENANS - Abstract
The Mediterranean diet (MD) is very rich in bioactive and immunomodulatory components. Some of these have demonstrated their protective activity in inflammation. The objective of this study was to evaluate the impact of a diet rich in fiber and polyphenols on an inflammatory process. The intervention was performed in two groups of 7-week-old rats, one receiving an experimental MD-like diet and another fed a reference diet (REF). At the end of the study, local inflammation was induced by injecting the rat's paw with carrageenan. A lower paw volume was observed in = rats from the MD-like diet group. [ABSTRACT FROM AUTHOR]
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- 2023
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8. A Maternal Diet Enriched in Fiber and Polyphenols during Pregestation, Gestation, and Lactation Has an Intestinal Trophic Effect in Both the Dam and the Offspring †.
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Ceballos-Sánchez, Daniela, Casanova-Crespo, Sergi, Rodríguez-Lagunas, Mara J., Castell, Margarida, Massot-Cladera, Malen, and Pérez-Cano, Francisco J.
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DIETARY fiber ,POLYPHENOLS ,INTESTINES ,PREGNANCY ,MEDITERRANEAN diet ,BIOACTIVE compounds ,LACTATION - Abstract
Maternal diet during lactation, pregnancy or even before can influence the health of the baby. The Mediterranean diet is the one with the highest level of evidence due to its richness in fiber and polyphenols, among other bioactive components. This study investigated the impact of a diet rich in fiber and polyphenols (HFP diet) supplemented during pregestation, gestation, and lactation at the intestinal level in both dams and their offspring. This diet had an intestinal impact in both pregnant rats and their offspring in terms of intestinal growth. Further research is required to elucidate the underlying mechanisms involved. [ABSTRACT FROM AUTHOR]
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- 2023
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9. Prebiotic effects of cocoa fibre on rats
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Massot-Cladera, Malen, Costabile, Adele, Childs, Caroline E., Yaqoob, Parveen, Franch, Àngels, Castell, Margarida, and Pérez-Cano, Francisco J.
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- 2015
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10. Cocoa polyphenols and fiber modify colonic gene expression in rats
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Massot-Cladera, Malen, Franch, Àngels, Castell, Margarida, and Pérez-Cano, Francisco J.
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- 2017
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11. Cocoa modulatory effect on rat faecal microbiota and colonic crosstalk
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Massot-Cladera, Malen, Pérez-Berezo, Teresa, Franch, Angels, Castell, Margarida, and Pérez-Cano, Francisco J.
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- 2012
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12. A diet enriched with cocoa prevents IgE synthesis in a rat allergy model
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Abril-Gil, Mar, Massot-Cladera, Malén, Pérez-Cano, Francisco J., Castellote, Cristina, Franch, Àngels, and Castell, Margarida
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- 2012
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13. CONSTRUCTION OF THE ONLINE CLASS THROUGH THE SLIDE EXPLANATIONS OF MASTER STUDENTS: THE SLIDE-4-U PROJECT
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Rodríguez-Lagunas, Maria J., primary, Massot-Cladera, Malen, additional, Franch, Àngels, additional, Azagra-Boronat, Ignasi, additional, Grases-Pintó, Blanca, additional, Rio-Aigé, Karla, additional, Ruiz-Iglesias, Patricia, additional, Castell, Margarida, additional, and Pérez-Cano, Francisco J., additional
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- 2022
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14. Com desenvolupar un escaperoom educatiu per a l'aprenentatge d'immunologia: BreakOut Educatiu
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Rodríguez Lagunas, María José, Massot Cladera, Malen, Grases Pintó, Blanca, Abril Gil, Maria del Mar, Azagra Boronat, Ignasi, Ruiz-Iglesias, Patricia, Morales Ferré, Carla, Rio-Aige, Karla, Périz, Marta, Torres Castro, Paulina, Gorgori-González, Abril, Franch i Masferrer, Àngels, Castell, Margarida, and Pérez-Cano, Francisco J.
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Educació superior ,Nanotecnologia ,Educational innovations ,Nanotechnology ,Higher education ,Innovacions educatives ,Gamification ,Ludificació - Abstract
Els BreakOut Educatius tenen com a finalitat que l'estudiant aprengui jugant a través de la resolució d'una sèrie d'enigmes que es troben en una caixa o similar. Per introduir continguts d'immunologia s'ha dissenyat un BreakOut educatiu recreant una tecnologia basada en nanobots capaç de curar qualsevol tipus d'infecció. L'experiència, tot i necessitar d'una inversió de temps important, ha estat gratificant per a estudiants i professors.
- Published
- 2021
15. Pràctiques d'hematologia a Fisiologia: de l'aprenentatge presencial a l'aprenentatge virtual: Adaptació de l'aprenentatge presencial al virtual
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Massot Cladera, Malen, Rodríguez Lagunas, María José, Azagra Boronat, Ignasi, Grases Pintó, Blanca., Rio-Aige, Karla, Ruiz-Iglesias, Patricia, Franch i Masferrer, Àngels, Pérez-Cano, Francisco J., and Castell, Margarida
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Practicums ,Physiology ,Fisiologia ,Pràcticums ,Hematology ,Hematologia - Abstract
S'ha confeccionat una eina virtual complementària a les pràctiques de laboratori que permet assegurar l'aprenentatge així com treballar competències transversals. A través de l'eina 'Lliçó' del Moodle s'ha elaborat una seqüència de pàgines de contingut i de preguntes de diferent tipologia que es treballen de forma virtual i síncrona en grups de 2-3 estudiants sota la supervisió del professorat connectats a través del BB Collaborate. L'alumnat valora positivament l'eina virtual.
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- 2021
16. RESOURCES FOR LEARNING HUMAN PHYSIOLOGY FOR STUDENTS OF HUMAN NUTRITION AND DIETETICS DURING THE FIRST COVID-19 LOCKDOWN
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Juan, Maria Emília, primary, Moran, M. Carmen, additional, Amat, Concepció, additional, Massot-Cladera, Malen, additional, Vilaplana, Jordi, additional, Rodríguez-Lagunas, Maria José, additional, and Vinardell, M. Pilar, additional
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- 2021
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17. FROM FACE-TO-FACE TO ADAPTED ON-LINE CLASSES DUE TO COVID-19 PANDEMIC: COMPARISON OF THE EVALUATIVE RESULTS OF PHYSIOLOGY AND PATHOPHYSIOLOGY III OF THE PHARMACY DEGREE OF THE UNIVERSITAT DE BARCELONA
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Pelegrí, Carme, primary, Martín-Venegas, Raquel, additional, Franch, Àngels, additional, Miró, Lluïsa, additional, Massot-Cladera, Malen, additional, Juan, Maria Emília, additional, Vilaplana, Jordi, additional, and Ferrer, Rut, additional
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- 2021
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18. Association of Maternal Microbiota and Diet in Cord Blood Cytokine and Immunoglobulin Profiles
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Fundació La Marató de TV3, European Research Council, Rio-Aige, Karla, Azagra Boronat, Ignasi, Massot Cladera, Malen, Selma Royo, Marta, Parra Llorca, Anna, González, Sonia, García-Mantrana, Izaskun, Castell, Margarida, Rodríguez-Lagunas, M.J., Collado, María Carmen, Pérez Cano, Francisco J, Fundació La Marató de TV3, European Research Council, Rio-Aige, Karla, Azagra Boronat, Ignasi, Massot Cladera, Malen, Selma Royo, Marta, Parra Llorca, Anna, González, Sonia, García-Mantrana, Izaskun, Castell, Margarida, Rodríguez-Lagunas, M.J., Collado, María Carmen, and Pérez Cano, Francisco J
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Mothers confer natural passive immunization to their infants through the transplacental pathway during the gestation period. The objective of the present study was to establish at birth the maternal and cord plasma concentration and relationship of immunoglobulins (Igs), cytokines (CKs), and adipokines. In addition, the impact of the maternal microbiota and diet was explored. The plasma profile of these components was different between mothers and babies, with the levels of many CKs, IgM, IgG2a, IgE, IgA, and leptin significantly higher in mothers than in the cord sample. Moreover, the total Igs, all IgG subtypes, IgE, and the Th1/Th2 ratio positively correlated in the mother–infant pair. Maternal dietary components such as monounsaturated fatty acids-polyunsaturated fatty acids and fiber were positively associated with some immune factors such as IgA in cord samples. The microbiota composition clustering also influenced the plasma profile of some factors (i.e., many CKs, some Ig, and adiponectin). In conclusion, we have established the concentration of these immunomodulatory factors in the maternal–neonatal pair at birth, some positive associations, and the influence of maternal diet and the microbiota composition, suggesting that the immune status during pregnancy, in terms of CKs and Igs levels, can influence the immune status of the infant at birth.
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- 2021
19. Chapter 18 - Influence of a Cocoa-Enriched Diet on the Intestinal Immune System and Microbiota
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Camps-Bossacoma, Mariona, Massot-Cladera, Malen, Pérez-Cano, Francisco J., and Castell, Margarida
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- 2019
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20. L’aula invertida dinàmica com a eina reflexiva i proactiva en l’aprenentatge de l’estudiant
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Pérez-Cano, Francisco J., Rodríguez Lagunas, María José, Castell, Margarida, Franch i Masferrer, Àngels, Massot Cladera, Malen, Camps i Bossacoma, Mariona, and Boronat-Azagra, Ignasi
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Kahoot ,Rúbriques d'avaluació ,Classe inversa ,Innovacions educatives ,Aparells mòbils - Abstract
Projecte: 2017PID-UB/026, L’equip docent d’aquesta proposta s’ha plantejat implementar diverses actuacions amb l’objectiu global d’implicar a l’estudiant de forma més activa i reflexiva en el seu procés d’aprenentatge de continguts d’actualitat (dels quals hi ha disponible nombrosa informació no contrastada en múltiples webs que confonen l’estudiant) com per exemple els “efectes dels probiòtics sobre la salut”. Assignatura de “Immunonutrició” del Màster URV-UB de Nutrició i Metabolisme. (c) aplicació Per tal d’aconseguir l’objectiu proposat, l’actuació es durà a terme en sessions d’aula invertida, on es plantejaran una sèrie de qüestions d’aspectes crítics sobre el tema a través dels dispositius mòbils. Amb posterioritat, es plantejarà una activitat dirigida que hauran de resoldre en base a la informació de diverses webs (institucionals i d’àmbit individual). Disposaran d’un guió de criteris d’actitud crítica amb la informació que els permeti la reflexió sobre el tema. Finalment, de forma presencial, es procedirà a l’organització dels diferents continguts desenvolupats i de les reflexions sorgides. (d) resultats previstos i assolits Es preveia que els estudiants s’impliquessin en les activitats plantejades i reflexionessin sobre la gestió crítica de la informació. Els resultats assolits es corresponen amb els previstos inicialment ja que tant els indicadors quantitatius com qualitatius del projecte reflecteixen l’aprenentatge i reflexions assolides i l’àmplia acceptació de l’estratègia docent dinamitzadora emprada.
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- 2018
21. Early Life Prebiotic effect on the intestinal microbiota composition and functionality
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Azagra Boronat, Ignasi, Massot Cladera, Malen, Castell, Margarida, Knipping, K., Tims, S., van't Land, B., Stahl, B., Knol, J., Garssen, J., Franch i Masferrer, Àngels, Rodríguez Lagunas, María José, and Pérez-Cano, Francisco J.
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Prebiòtics ,Prebiotics ,Congressos ,Microbiota intestinal ,Gastrointestinal microbiome ,Congresses - Abstract
Podeu consultar el III Workshop anual INSA-UB complet a: http://hdl.handle.net/2445/118993, Sessió 2. Comunicació oral núm. 2
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- 2017
22. Changes in intestinal immune system after training and exhausting physical exercise in rats
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Périz, M., Estruel Amades, Seila, Massot Cladera, Malen, Camps i Bossacoma, Mariona, Franch i Masferrer, Àngels, Pérez-Cano, Francisco J., Castell, Margarida, and Universitat de Barcelona
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Intestines ,Intestins ,Immune system ,Congressos ,Exercici ,Sistema immunològic ,Exercise ,Congresses - Abstract
Podeu consultar el III Workshop anual INSA-UB complet a: http://hdl.handle.net/2445/118993, Sessió 1. Pòster núm. 8
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- 2017
23. Immunomodulatory effect and maternal transmission of a probiotic strain of Lactobacillus isolated from human milk
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Tres Oliver, Alba, Azagra Boronat, Ignasi, Massot Cladera, Malen, Franch i Masferrer, Àngels, Castell, Margarida, Guardiola Ibarz, Francesc, Pérez-Cano, Francisco J., Rodríguez Lagunas, María José, and Universitat de Barcelona
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Breast milk ,Llet materna ,Congressos ,Probiotics ,Probiòtics ,Congresses - Abstract
Podeu consultar el III Workshop anual INSA-UB complet a: http://hdl.handle.net/2445/118993, Sessió 1. Resultats del Programa FRI-INSA
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- 2017
24. Informe final del projecte 2015PID-UB/040: Millora de la capacitat comunicativa: adaptació del registre al tipus de receptor
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Pérez-Cano, Francisco J., Rodríguez Lagunas, María José, Castell, Margarida, Franch i Masferrer, Àngels, Saldaña-Ruíz, Sandra, Massot Cladera, Malen, and Camps i Bossacoma, Mariona
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Autoavaluació ,Comunicació ,Desenvolupament professional ,Fisiologia ,Innovacions educatives - Abstract
Projecte: 2015PID-UB/040, L’objectiu del present projecte se centra en millorar la capacitat comunicativa del futur professional mitjançant el treball i la reflexió sobre el llenguatge a utilitzar per a dirigir-se a un professional del mateix àmbit o bé a un receptor no especialitzat (per exemple, un pacient). En el context de l'assignatura de “Fonaments d’Immunologia” del Màster URV-UB de Nutrició i Metabolisme, els estudiants han seleccionat un tema i treballat en equip els seus continguts. Els estudiants l’han presentat a classe emprant dos tipus de registre i detectant la terminologia adient en cada cas. L’avaluació de les presentacions s’ha realitzat, a més de pel professor, mitjançant correcció per iguals i autoavaluació. A més, per tal de dinamitzar les classes, els estudiants han realitzat a classe qüestionaris en línia amb els propis dispositius mòbils i han obtingut una retroacció immediata a través del seu dispositiu (utilitzant la plataforma Socrative). Aquestes estratègies docents han estat valorades pels estudiants per a conèixer el grau d’interès i d’aprofitament.Es preveia que els estudiants realitzessin una activitat formativa d’aquest tipus per aprendre no només els continguts del temari sinó que també la importància del tipus de llenguatge emprat en la comunicació. Els resultats assolits es corresponen amb els previstos inicialment ja que tant els indicadors quantitatius com qualitatius del projecte reflecteixen l’aprenentatge assolit i l’àmplia acceptació de l’activitat.
- Published
- 2017
25. Immunomodulatory role of probiotics in early life
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Rodríguez Lagunas, María José, Azagra Boronat, Ignasi, Saldaña-Ruíz, Sandra, Massot Cladera, Malen, Rigo-Adrover, María del Mar, Sabaté-Jofre, Anna, Franch i Masferrer, Àngels, Castell, Margarida, Pérez-Cano, Francisco J., and Universitat de Barcelona
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Breast milk ,Llet materna ,Probiotics ,Immunology ,Immunologia ,Probiòtics - Abstract
Podeu consultar el llibre complet a: http://hdl.handle.net/2445/120717
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- 2017
26. Paper immunomodulador dels probiòtics en les primeres etapes de la vida (Seminaris de Recerca 2016)
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Pérez-Cano, Francisco J., Castell, Margarida, Franch i Masferrer, Àngels, Rodríguez Lagunas, María José, Saldaña-Ruíz, Sandra, Massot Cladera, Malen, Rigo-Adrover, Mar, and Azagra Boronat, Ignasi
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Breast milk ,Llet materna ,Probiotics ,Immunology ,Seminaris ,Seminars ,Immunologia ,Probiòtics - Published
- 2016
27. Effect of cocoa's theobromine on intestinal microbiota of rats
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Martín‐Peláez, Sandra, primary, Camps‐Bossacoma, Mariona, additional, Massot‐Cladera, Malen, additional, Rigo‐Adrover, Mar, additional, Franch, Àngels, additional, Pérez‐Cano, Francisco J, additional, and Castell, Margarida, additional
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- 2017
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28. Cocoa Diet and Antibody Immune Response in Preclinical Studies
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Camps-Bossacoma, Mariona, primary, Massot-Cladera, Malen, additional, Abril-Gil, Mar, additional, Franch, Angels, additional, Pérez-Cano, Francisco J., additional, and Castell, Margarida, additional
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- 2017
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29. Association between urinary metabolic profile and the intestinal effects of cocoa in rats
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Massot-Cladera, Malen, primary, Mayneris-Perxachs, Jordi, additional, Costabile, Adele, additional, Swann, Jonathan R., additional, Franch, Àngels, additional, Pérez-Cano, Francisco J., additional, and Castell, Margarida, additional
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- 2017
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30. “Cocoa and Chocolate: Science and Gastronomy”—The Second Annual Workshop of the Research Institute on Nutrition and Food Security (INSA): 9 November 2016
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Massot‐Cladera, Malen, primary, Pérez‐Cano, Francisco, additional, Llorach, Rafael, additional, and Urpi‐Sarda, Mireia, additional
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- 2017
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31. Efecte dels components bioactius del cacau sobre la microbiota i el sistema immunitari intestinal de rata
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Massot Cladera, Malen, Castell, Margarida, Pérez-Cano, Francisco J., and Universitat de Barcelona. Departament de Fisiologia (Farmàcia)
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Flavonoids ,Cacao ,Intestins ,food and beverages ,Intestinos ,Sistema immunològic ,Ciències de la Salut ,Intestines ,Fiber in human nutrition ,Cocoa ,Immune system ,Sistema inmunológico ,Fibra alimenticia ,Fibra alimentària ,Cacau ,Flavonoides - Abstract
En els últims anys ha crescut considerablement l’interès per descobrir aliments naturals funcionals amb propietats beneficioses per a l’hoste. En aquest sentit, el cacau ha passat a ser un dels principals subjectes d’estudi pel seu contingut en flavonoides. Són molts els estudis que associen la ingesta de cacau amb efectes beneficiosos sobre la salut. A més, se li han atribuït propietats immunomoduladores en rata. En base a aquests efectes descrits, l’objectiu d’aquesta Tesi Doctoral va ser establir l’efecte de dietes enriquides amb cacau, flavonoides del cacau i fibra de cacau sobre la microbiota intestinal així com sobre la funció immunitària intestinals. Per tal d’assolir aquests objectius, s’han portat a terme estudis preclínics en rata amb una dieta enriquida amb cacau convencional al 10%, dietes elaborades a partir de dos extractes de cacau no fermentats i una dieta amb fibra de cacau. Pel que fa als resultats de microbiota, es va observar diferent patró de composició després de la intervenció nutricional amb les dietes enriquides amb flavonoides del cacau però únicament la dieta de fibra de cacau va mostrar un efecte prebiòtic al promoure el creixement dels gèneres Bifidobacterium i Lactobacillus. A més, la dieta de fibra de cacau va comportar els canvis més pronunciats en la producció d’AGCC en femtes i contingut cecal. Particularment, va augmentar la concentració a nivell fecal i cecal dels àcids acètic, propiònic i butíric. A més, les dietes de cacau i fibra de cacau van modular de forma diferencial l’expressió gènica de TLR en còlon. Quant a les immunoglobulines en el compartiment mucosal, totes les dietes enriquides amb polifenols del cacau van modular la secreció d’IgA intestinal, tot i que de forma no proporcional al seu contingut en flavonoides. La fibra de cacau, depenent del compartiment intestinal estudiat, va exercir un efecte o un altre. Pel que fa al compartiment extraintestinal, tot i que la dieta de fibra de cacau va mostrar el mateix efecte atenuador de la síntesi d’IgA i d’IgM que la dieta de cacau, el mecanisme d’acció va ser diferent. A més, totes les dietes enriquides amb flavonoides del cacau, van disminuir la seva proporció de bacteris fecals units a IgA independentment del seu contingut en flavonoides, mentre que aquest percentatge va incrementar amb la dieta de fibra de cacau. Únicament la dieta al 10% de cacau provoca un alentiment en la corba ponderal. Aquest efecte es correlaciona amb els canvis produïts en la microbiota i es pot associar amb la modificació de l’expressió en còlon dels gens implicats en el metabolisme lipídic. Pel que fa al perfil metabòlic en orina, les dietes de cacau i fibra de cacau van provocar patrons diferencials, els quals poden ser usats com a marcadors d’ingesta. El perfil metabòlic es correlacionen amb els efectes del cacau sobre el pes corporal, amb les hormones metabòliques, amb la immunitat intestinal i amb la composició de la microbiota. A més, aquestes variables també mostren correlació entre si. Els efectes del cacau són el resultat de la suma del efectes del components bioactius present en el cacau: polifenols i fibra de cacau, els quals exerceixen efectes sinèrgics o bé contraris depenent de la variable estudiada. Altres components del cacau també estan involucrats en aquests efectes., In the last few years, cocoa has become one of the main subjects of study due to its high content in flavonoids. Several studies have associated the cocoa intake with health benefits. Moreover, immunomodulatory properties in rats have been also attributed to cocoa. On this basis, the aim of the present thesis was to establish the impact of diets enriched with cocoa, cocoa flavonoids or cocoa fiber on the fecal microbiota composition and its activity as well as on the immune function in the gut. To achieve this objective, preclinical studies were carried out in rats fed a 10% conventional cocoa-enriched diet, diets elaborated with different amounts of non- fermented cocoa extracts and cocoa fiber diet. Regarding microbiota results, differential composition pattern was observed after all the experimental diets intake but only the cocoa fiber diet increased the Bifidobacterium spp. and Lactobacillus spp. proportion. In addition, the cocoa fiber diet was the one which caused the most pronounced changes in the short chain fatty acids (SCFA) production. Particularly, it increased the cecal and fecal concentration of acetic, propionic and butyric acids. Moreover, both the 10%-cocoa diet and cocoa fiber diets differentially modulated the TLR gene expression in the colon. Concerning the mucosal immunoglobulin production, all cocoa polyphenol-enriched diets modulated the intestinal IgA secretion although this effect was not proportional to their flavonoid content. The cocoa fiber diet also exerted an effect on intestinal IgA secretion but in a different way depending on the compartment. Focusing on the extraintestinal compartment, although the cocoa fiber diet showed the same down- modulatory effect on IgA and IgM secretion as the cocoa diet, its mechanisms were different. In addition, all cocoa flavonoid-enriched diets decreased IgA-coated bacteria proportion in a non-dose dependent manner whereas this percentage increased by the cocoa fiber intake The 10% cocoa diet was the only one that caused a slower body weight gain. This effect is correlated with the microbiota modulation. The change induced by cocoa diet on the expression of genes involved in the lipid metabolism in the colon could be also involved. Regarding the urinary metabolites, the cocoa and the coca fiber diets caused differential metabolic profile that can be used as consumption marker. The metabolic fingerprint correlated well with the body weight, the metabolic hormones, the intestinal immunity and the microbiota composition. Moreover, all these variables showed also an association between them. Therefore, the effects produced by cocoa intake are due to the differential effects caused by each one of its main bioactive compounds - polyphenols and fiber - which act in a synergistic or opposite manner depending on the variable. Other cocoa compounds are also involved in such effects.
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- 2015
32. Cocoa polyphenols and fiber modify colonic gene expression in rats
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Massot-Cladera, Malen, primary, Franch, Àngels, additional, Castell, Margarida, additional, and Pérez-Cano, Francisco J., additional
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- 2016
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33. Cocoa and cocoa fibre differentially modulate IgA and IgM production at mucosal sites
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Massot-Cladera, Malen, primary, Franch, Àngels, additional, Pérez-Cano, Francisco J., additional, and Castell, Margarida, additional
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- 2016
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34. Impact of cocoa polyphenol extracts on the immune system and microbiota in two strains of young rats
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Massot-Cladera, Malen, primary, Abril-Gil, Mar, additional, Torres, Sandra, additional, Franch, Àngels, additional, Castell, Margarida, additional, and Pérez-Cano, Francisco J., additional
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- 2014
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35. Flavonoids Affect Host-Microbiota Crosstalk through TLR Modulation
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Pérez-Cano, Francisco, primary, Massot-Cladera, Malen, additional, Rodríguez-Lagunas, Maria, additional, and Castell, Margarida, additional
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- 2014
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36. Cocoa Flavonoid-Enriched Diet Modulates Systemic and Intestinal Immunoglobulin Synthesis in Adult Lewis Rats
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Massot-Cladera, Malen, primary, Franch, Àngels, additional, Castellote, Cristina, additional, Castell, Margarida, additional, and Pérez-Cano, Francisco, additional
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- 2013
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37. The effects of cocoa on the immune system
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Pérez-Cano, Francisco J., primary, Massot-Cladera, Malen, additional, Franch, Àngels, additional, Castellote, Cristina, additional, and Castell, Margarida, additional
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- 2013
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38. Synthesis and Nano-Sized Characterization of Bioactive Oregano Essential Oil Molecule-Loaded Small Unilamellar Nanoliposomes with Antifungal Potentialities.
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Aguilar-Pérez, Katya M., Medina, Dora I., Narayanan, Jayanthi, Parra-Saldívar, Roberto, Iqbal, Hafiz M. N., Rodríguez-Lagunas, Maria José, and Massot-Cladera, Malen
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ESSENTIAL oils ,ATTENUATED total reflectance ,SMALL molecules ,POLYMERSOMES ,OREGANO ,SCANNING electron microscopy ,ANTIFUNGAL agents ,HYDROPHOBIC compounds - Abstract
The development of greener nano-constructs with noteworthy biological activity is of supreme interest, as a robust choice to minimize the extensive use of synthetic drugs. Essential oils (EOs) and their constituents offer medicinal potentialities because of their extensive biological activity, including the inhibition of fungi species. However, their application as natural antifungal agents are limited due to their volatility, low stability, and restricted administration routes. Nanotechnology is receiving particular attention to overcome the drawbacks of EOs such as volatility, degradation, and high sensitivity to environmental/external factors. For the aforementioned reasons, nanoencapsulation of bioactive compounds, for instance, EOs, facilitates protection and controlled-release attributes. Nanoliposomes are bilayer vesicles, at nanoscale, composed of phospholipids, and can encapsulate hydrophilic and hydrophobic compounds. Considering the above critiques, herein, we report the in-house fabrication and nano-size characterization of bioactive oregano essential oil (Origanum vulgare L.) (OEO) molecules loaded with small unilamellar vesicles (SUV) nanoliposomes. The study was focused on three main points: (1) multi-compositional fabrication nanoliposomes using a thin film hydration–sonication method; (2) nano-size characterization using various analytical and imaging techniques; and (3) antifungal efficacy of as-developed OEO nanoliposomes against Trichophyton rubrum (T. rubrum) by performing the mycelial growth inhibition test (MGI). The mean size of the nanoliposomes was around 77.46 ± 0.66 nm and 110.4 ± 0.98 nm, polydispersity index (PdI) of 0.413 ± 0.015, zeta potential values up to −36.94 ± 0.36 mV were obtained by dynamic light scattering (DLS). and spherical morphology was confirmed by scanning electron microscopy (SEM). The presence of OEO into nanoliposomes was displayed by attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopy. Entrapment efficiency values of 79.55 ± 6.9% were achieved for OEO nanoliposomes. In vitro antifungal activity of nanoliposomes tested against T. rubrum strains revealed that OEO nanoliposomes exhibited the highest MGI, 81.66 ± 0.86%, at a concentration of 1.5 µL/mL compared to the rest of the formulations. In summary, this work showed that bioactive OEO molecules with loaded nanoliposomes could be used as natural antifungal agents for therapeutical purposes against T. rubrum. [ABSTRACT FROM AUTHOR]
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- 2021
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39. Jasmonate Compounds and Their Derivatives in the Regulation of the Neoplastic Processes.
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Jarocka-Karpowicz, Iwona, Markowska, Agnieszka, Rodríguez-Lagunas, Maria José, and Massot-Cladera, Malen
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JASMONATE ,PACLITAXEL ,JASMONIC acid ,PROTEIN kinases ,REACTIVE oxygen species ,STRUCTURE-activity relationships - Abstract
Cancer is a serious problem in modern medicine, mainly due to the insufficient effectiveness of currently available therapies. There is a particular interest in compounds of natural origin, which can be used in the prophylaxis, as well as in the treatment and support of cancer treatment. One such compound is jasmonic acid (3-oxo-2-(pent-2'-enyl)cyclopentane acetic acid; isolated active form: trans-(-)-(3R,7R)- and cis-(+)-(3R,7S)-jasmonic acid) and its derivatives, which, due to their wide range of biological activities, are also proposed as potential therapeutic agents. Therefore, a review of literature data on the biological activity of jasmonates was prepared, with particular emphasis on the mechanisms of jasmonate action in neoplastic diseases. The anti-tumor activity of jasmonate compounds is based on altered cellular ATP levels; induction of re-differentiation through the action of Mitogen Activated Protein Kinases (MAPKs); the induction of the apoptosis by reactive oxygen species. Jasmonates can be used in anti-cancer therapy in combination with other known drugs, such as cisplatin, paclitaxel or doxorubicin, showing a synergistic effect. The structure–activity relationship of novel jasmonate derivatives with anti-tumor, anti-inflammatory and anti-aging effects is also shown. [ABSTRACT FROM AUTHOR]
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- 2021
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40. The Potentials of Melatonin in the Prevention and Treatment of Bacterial Meningitis Disease.
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Zhang, Dong, Xu, Shu, Wang, Yiting, Zhu, Guoqiang, Rodríguez-Lagunas, Maria José, and Massot-Cladera, Malen
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Bacterial meningitis (BM) is an acute infectious central nervous system (CNS) disease worldwide, occurring with 50% of the survivors left with a long-term serious sequela. Acute bacterial meningitis is more prevalent in resource-poor than resource-rich areas. The pathogenesis of BM involves complex mechanisms that are related to bacterial survival and multiplication in the bloodstream, increased permeability of blood–brain barrier (BBB), oxidative stress, and excessive inflammatory response in CNS. Considering drug-resistant bacteria increases the difficulty of meningitis treatment and the vaccine also has been limited to several serotypes, and the morbidity rate of BM still is very high. With recent development in neurology, there is promising progress for drug supplements of effectively preventing and treating BM. Several in vivo and in vitro studies have elaborated on understanding the significant mechanism of melatonin on BM. Melatonin is mainly secreted in the pineal gland and can cross the BBB. Melatonin and its metabolite have been reported as effective antioxidants and anti-inflammation, which are potentially useful as prevention and treatment therapy of BM. In bacterial meningitis, melatonin can play multiple protection effects in BM through various mechanisms, including immune response, antibacterial ability, the protection of BBB integrity, free radical scavenging, anti-inflammation, signaling pathways, and gut microbiome. This manuscript summarizes the major neuroprotective mechanisms of melatonin and explores the potential prevention and treatment approaches aimed at reducing morbidity and alleviating nerve injury of BM. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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41. Potential of Sulforaphane as a Natural Immune System Enhancer: A Review.
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Mahn, Andrea, Castillo, Antonio, Rodríguez-Lagunas, Maria José, and Massot-Cladera, Malen
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GLUCOSINOLATES ,SULFORAPHANE ,IMMUNE system ,ENZYME activation ,IMMUNOLOGIC diseases ,VITAMIN C - Abstract
Brassicaceae are an outstanding source of bioactive compounds such as ascorbic acid, polyphenols, essential minerals, isothiocyanates and their precursors, glucosinolates (GSL). Recently, GSL gained great attention because of the health promoting properties of their hydrolysis products: isothiocyanates. Among them, sulforaphane (SFN) became the most attractive one owing to its remarkable health-promoting properties. SFN may prevent different types of cancer and has the ability to improve hypertensive states, to prevent type 2 diabetes–induced cardiomyopathy, and to protect against gastric ulcer. SFN may also help in schizophrenia treatment, and recently it was proposed that SFN has potential to help those who struggle with obesity. The mechanism underlying the health-promoting effect of SFN relates to its indirect action at cellular level by inducing antioxidant and Phase II detoxifying enzymes through the activation of transcription nuclear factor (erythroid-derived 2)-like (Nrf2). The effect of SFN on immune response is generating scientific interest, because of its bioavailability, which is much higher than other phytochemicals, and its capacity to induce Nrf2 target genes. Clinical trials suggest that sulforaphane produces favorable results in cases where pharmaceutical products fail. This article provides a revision about the relationship between sulforaphane and immune response in different diseases. Special attention is given to clinical trials related with immune system disorders. [ABSTRACT FROM AUTHOR]
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- 2021
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42. The Emerging Role of Polyphenols in the Management of Type 2 Diabetes.
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Wang, Yao, Alkhalidy, Hana, Liu, Dongmin, Rodríguez-Lagunas, Maria José, and Massot-Cladera, Malen
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ENTEROENDOCRINE cells ,PLANT polyphenols ,TYPE 2 diabetes ,POLYPHENOLS ,MICROBIAL metabolites ,METABOLITES ,GASTROINTESTINAL hormones - Abstract
Type 2 diabetes (T2D) is a fast-increasing health problem globally, and it results from insulin resistance and pancreatic β-cell dysfunction. The gastrointestinal (GI) tract is recognized as one of the major regulatory organs of glucose homeostasis that involves multiple gut hormones and microbiota. Notably, the incretin hormone glucagon-like peptide-1 (GLP-1) secreted from enteroendocrine L-cells plays a pivotal role in maintaining glucose homeostasis via eliciting pleiotropic effects, which are largely mediated via its receptor. Thus, targeting the GLP-1 signaling system is a highly attractive therapeutic strategy to treatment T2D. Polyphenols, the secondary metabolites from plants, have drawn considerable attention because of their numerous health benefits, including potential anti-diabetic effects. Although the major targets and locations for the polyphenolic compounds to exert the anti-diabetic action are still unclear, the first organ that is exposed to these compounds is the GI tract in which polyphenols could modulate enzymes and hormones. Indeed, emerging evidence has shown that polyphenols can stimulate GLP-1 secretion, indicating that these natural compounds might exert metabolic action at least partially mediated by GLP-1. This review provides an overview of nutritional regulation of GLP-1 secretion and summarizes recent studies on the roles of polyphenols in GLP-1 secretion and degradation as it relates to metabolic homeostasis. In addition, the effects of polyphenols on microbiota and microbial metabolites that could indirectly modulate GLP-1 secretion are also discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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43. The Intestinal Efflux Transporter Inhibition Activity of Xanthones from Mangosteen Pericarp: An In Silico, In Vitro and Ex Vivo Approach.
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Dechwongya, Panudda, Limpisood, Songpol, Boonnak, Nawong, Mangmool, Supachoke, Takeda-Morishita, Mariko, Kulsirirat, Thitianan, Rukthong, Pattarawit, Sathirakul, Korbtham, Rodríguez-Lagunas, Maria José, and Massot-Cladera, Malen
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MANGOSTEEN ,PERICARP ,MULTIDRUG resistance ,P-glycoprotein - Abstract
The capacity of α-mangostin (α-MG) and β-mangostin (β-MG) from mangosteen pericarp on P-glycoprotein (Pgp) in silico, in vitro, and ex vivo was investigated in this study. Screening with the ADMET Predictor™ program predicted the two compounds to be both a Pgp inhibitor and Pgp substrate. The compounds tended to interact with Pgp and inhibit Pgp ATPase activity. Additionally, bidirectional transport on Caco-2 cell monolayers demonstrated a significantly lower efflux ratio than that of the control (α-(44.68) and β-(46.08) MG versus the control (66.26); p < 0.05) indicating an inhibitory effect on Pgp activity. Test compounds additionally revealed a downregulation of MDR1 mRNA expression. Moreover, an ex vivo absorptive transport in everted mouse ileum confirmed the previous results that α-MG had a Pgp affinity inhibitor, leading to an increase in absorption of the Pgp substrate in the serosal side. In conclusion, α- and β-MG have the capability to inhibit Pgp and they also alter Pgp expression, which makes them possible candidates for reducing multidrug resistance. Additionally, they influence the bioavailability and transport of Pgp substrate drugs. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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44. Ethyl Pyruvate Promotes Proliferation of Regulatory T Cells by Increasing Glycolysis.
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Koprivica, Ivan, Gajić, Dragica, Pejnović, Nada, Paunović, Verica, Saksida, Tamara, Stojanović, Ivana, Rodríguez-Lagunas, Maria José, and Massot-Cladera, Malen
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SUPPRESSOR cells ,GLYCOLYSIS ,FATTY acid oxidation ,TYPE 1 diabetes ,T cells ,LYMPHOID tissue - Abstract
Ethyl pyruvate (EP), a stable form of pyruvate, has shown beneficial effects in animal models of shock, ischemia/reperfusion injury, and sepsis due to its potent anti-oxidant and anti-inflammatory properties. Our recent study demonstrated that EP application prevented the clinical manifestation of type 1 diabetes in mice by augmenting regulatory T cell (Treg) number and function. Our present study shows that EP increases Treg proliferation and suppressive function (perforin and IL-10 expression) during in vitro differentiation from conventional CD4
+ CD25− T cells. Enhanced expansion of Treg after EP treatment correlated with increased ATP levels and relied on increased glycolysis. Inhibition of oxidative phosphorylation did not attenuate EP stimulatory effects, suggesting that this metabolic pathway was not mandatory for EP-driven Treg proliferation. Moreover, EP lowered the expression of carnitine palmitoyltransferase I, an enzyme involved in fatty acid oxidation. Further, the stimulatory effect of EP on Treg proliferation was not mediated through inhibition of the mTOR signaling pathway. When given in vivo either intraperitoneally or orally to healthy C57BL/6 mice, EP increased the number of Treg within the peritoneal cavity or gut-associated lymphoid tissue, respectively. In conclusion, EP promotes in vitro Treg proliferation through increased glycolysis and enhances Treg proliferation when administered in vivo. [ABSTRACT FROM AUTHOR]- Published
- 2020
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45. Alternatives metodològiques en fisiologia i fisiopatologia - GAMFIF
- Author
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Amat, Concepció, Castell, Margarida, Castellote i Bargalló, M. Cristina, Valle i Macià, Jaume del, Franch i Masferrer, Àngels, Juan i Olivé, M. Emília, Lozano Mena, Glòria, Manich Raventós, Gemma, Massot Cladera, Malen, Miró Martí, Ma. Lluïsa, Moretó, Miquel, 1950, Pelegrí i Gabaldà, Carme, Pérez-Cano, Francisco J., Pérez Bosque, Anna, Planas i Rosselló, Joana M., Queralt i Regué, Josep, Rabanal i Tornero, Manel, Sánchez González, Marta, Vilaplana i Hortensi, Jordi, and Universitat de Barcelona
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Ciències de la salut ,Congressos ,Teaching ,Medical sciences ,Congresses ,Ensenyament - Abstract
Podeu consultar la Setena trobada de professorat de Ciències de la Salut completa a: http://hdl.handle.net/2445/43352
46. The effects of cocoa on the immune system
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Pérez-Cano, Francisco J., Massot-Cladera, Malen, Franch, Àngels, Castellote, Cristina, Castell, Margarida, and Universitat de Barcelona
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Macròfags ,Melsa ,Review Article ,macrophage ,lymphocyte ,Sistema immunològic ,Limfòcits ,Cocoa ,thymus ,antibody ,Citoquines ,cytokine ,Pharmacology (medical) ,Lymphocytes ,Pharmacology ,Macrophages ,lcsh:RM1-950 ,food and beverages ,Thyme ,Gut-associated lymphoid tissue ,lcsh:Therapeutics. Pharmacology ,Immune system ,cocoa ,Farigola ,Cytokines ,Cacau ,Spleen - Abstract
Cocoa is a food relatively rich in polyphenols, which makes it a potent antioxidant. Due to its activity as an antioxidant, as well as through other mechanisms, cocoa consumption has been reported to be beneficial for cardiovascular health, brain functions, and cancer prevention. Furthermore, cocoa influences the immune system, in particular the inflammatory innate response and the systemic and intestinal adaptive immune response. Preclinical studies have demonstrated that a cocoa-enriched diet modifies T cell functions that conduce to a modulation of the synthesis of systemic and gut antibodies. In this regard, it seems that a cocoa diet in rats produces changes in the lymphocyte composition of secondary lymphoid tissues and the cytokines secreted by T cells. These results suggest that it is possible that cocoa could inhibit the function of T helper type 2 cells, and in line with this, the preventive effect of cocoa on IgE synthesis in a rat allergy model has been reported, which opens up new perspectives when considering the beneficial effects of cocoa compounds. On the other hand, cocoa intake modifies the functionality of gut-associated lymphoid tissue by means of modulating IgA secretion and intestinal microbiota. The mechanisms involved in these influences are discussed here. Further research may elucidate the cocoa compounds involved in such an effect and also the possible medical approaches to these repercussions.
47. Cocoa diet and antibody immune response in preclinical studies
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Camps-Bossacoma, Mariona, Massot-Cladera, Malen, Abril-Gil, Mar, Franch, Angels, Pérez-Cano, Francisco J., Castell, Margarida, and Universitat de Barcelona
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Nutrition and Dietetics ,IgM ,tolerance ,IgG ,Endocrinology, Diabetes and Metabolism ,immunoregulator ,food and beverages ,Review ,IgA ,lymph nodes ,spleen ,gut-associated lymphoid tissue ,Sistema immunològic ,Diet ,Cocoa ,Immune system ,Dieta ,Cacau ,Food Science ,Nutrition - Abstract
The ability of cocoa to interact with the immune system in vitro and in vivo has been described. In the latter context, a cocoa-enriched diet in healthy rats was able to modify the immune system’s functionality. This fact could be observed in the composition and functionality of lymphoid tissues, such as the thymus, spleen, and lymph nodes. Consequently, immune effector mechanisms, such as antibody synthesis, were modified. A cocoa-enriched diet in young rats was able to attenuate the serum levels of immunoglobulin (Ig) G, IgM, and IgA and also the intestinal IgM and IgA secretion. Moreover, in immunized rats, the intake of cocoa decreased specific IgG1, IgG2a, IgG2c, and IgM concentrations in serum. This immune-regulator potential was then tested in disease models in which antibodies play a pathogenic role. A cocoa-enriched diet was able to partially prevent the synthesis of autoantibodies in a model of autoimmune arthritis in rats and was also able to protect against IgE and T helper 2-related antibody synthesis in two rat models of allergy. Likewise, a cocoa-enriched diet prevented an oral sensitization process in young rats. In this review, we will focus on the influence of cocoa on the acquired branch of the immune function. Therefore, we will focus on how a cocoa diet influences lymphocyte function both in the systemic and intestinal immune system. Likewise, its potential role in preventing some antibody-induced immune diseases is also included. Although further studies must characterize the particular cocoa components responsible for such effects and nutritional studies in humans need to be carried out, cocoa has potential as a nutraceutical agent in some hypersensitivity status.
48. 'Cocoa and Chocolate: Science and Gastronomy'—The Second Annual Workshop of the Research Institute on Nutrition and Food Security (INSA): 9 November 2016
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Massot Cladera, Malen, Pérez-Cano, Francisco J., Llorach, Rafael, Urpí Sardà, Mireia, and Universitat de Barcelona
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Cocoa ,Catalonia ,Xocolata ,Conference Report ,Catalunya ,Cacau ,Chocolate - Abstract
The Research Institute on Nutrition and Food Security at the University of Barcelona (INSA-UB) was founded in 2005 by twenty-two research groups from the Faculties of Pharmacy and Food Science; Biology; Chemistry; and Geography and History, as well as other UB-affiliated centers and hospitals. Most of the groups at the Institute are, or at least are part of, the research groups established by the Government of Catalonia. INSA-UB was founded to meet the current societal need for research, training and service provision in the sectors related to the agro-alimentary industry. Researchers at the Institute are experts in different fields of nutrition; food analysis and control; food safety and the study of the social and economic impact of food. The main objectives of the institute are to promote research in the fields in which it works; to encourage collaboration between researchers and the establishment of multidisciplinary teams; to promote participation in research programs and institutional administration, particularly in European research projects; to encourage the development of joint projects with companies in the sectors related to its scope; to make available all the social potential of the UB in this area, especially the training of technicians and specialists and provision of services; to promote the transfer of knowledge and the dissemination of research results between society and government; and to advise consumers, businesses and public authorities on nutrition, food safety and quality...
49. Estudio del efecto antiasmático de cacao nativo de Perú en un modelo experimental en rata
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Périz Torres, Marta, Castell, Margarida, Massot Cladera, Malen, and Universitat de Barcelona. Departament de Bioquímica i Fisiologia
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Al·lèrgia ,Cocoa ,Allergy ,Immunology ,Rats as laboratory animals ,Immunologia ,Cacau ,Nutrició ,Asma ,Rates (Animals de laboratori) ,Asthma ,Nutrition - Abstract
[spa] Debido al incremento sostenido de la prevalencia del asma y la presencia de fenotipos graves, resulta de interés el desarrollo de modelos animales que permitan estudiar nuevos tratamientos y coadyuvantes. En los últimos años, el cacao ha demostrado influir en el sistema inmunitario, modificando la composición de linfocitos y la producción de anticuerpos y citocinas. En base a estos factores, el objetivo de la presente tesis ha sido establecer el efecto antiasmático del cacao, en particular de cuatro cacaos nativos del Perú procedentes de distintas regiones del país: Blanco de Piura (BPC), Amazonas Perú (APC), Criollo de Montaña (CMC) y Chuncho (CCC). Para lograr este objetivo, se desarrolló un modelo de asma alérgica que permitiera la inducción y la cuantificación objetiva de una respuesta anafiláctica utilizando ovoalbúmina como alérgeno y alum y toxina Bordetella pertussis como adyuvantes. Paralelamente se determinaron los compuestos bioactivos de los cacaos y se estudió el efecto in vitro en células del sistema inmune, macrófagos peritoneales y linfocitos del bazo. Los resultados mostraron una mayor concentración de polifenoles, metilxantinas, capacidad antioxidante y efecto antiinflamatorio en los cacaos Amazonas Perú y Criollo de Montaña, por lo que fueron seleccionados para su estudio en el modelo de asma alérgica desarrollado. A continuación, se determinó el efecto de una dieta enriquecida al 10% de cacao Amazonas Perú, Criollo de Montaña o un cacao ordinario no autóctono en el modelo de asma alérgica establecido. Los resultados demuestran que las dietas ricas en cacao son capaces de reducir la síntesis de anticuerpos asociados a la respuesta inmunitaria Th2, sin embargo, el cacao ordinario mostró un efecto mayor que los cacaos nativos, siendo capaz de reducir la concentración de IgE sistémica y respiratoria. La dieta con Criollo de Montaña disminuyó la concentración de IgE en lavado broncoalveolar, con una tendencia en suero, y la dieta con Amazonas Perú solo mostró un cierto efecto a nivel respiratorio. Resultados similares se observaron en la concentración de proteasa mastocitaria II, indicativa de la degranulación mastocitaria. Las tres dietas ricas en cacao redujeron la producción de IgG1 sistémica y eosinófilos y leucotrienos en la vía respiratoria de forma similar, mientras que la dieta con Amazonas Perú mostró un efecto mayor que el resto de las dietas en la reducción de IgG2a. Las dietas con cacao Criollo de Montaña y cacao ordinario, pero no dieta con Amazonas Perú, disminuyeron la concentración de IgA mucosal. Por consiguiente, los cacaos fueron capaces de paliar la respuesta inmunitaria Th2, especialmente la síntesis de IgE y la degranulación de los mastocitos, aunque se observaron diferencias entre los cacaos que no se pueden atribuidos a un solo compuesto bioactivo, debiendo influir tanto el contenido en teobromina como la concentración y perfil de flavonoides de cada cacao, que varía según su origen., [eng] Due to the sustained increase in the prevalence of asthma and the presence of severe phenotypes, the development of animal models that allow the study of new treatments and adjuvants, such as cocoa, which in recent years has been shown to influence the immune system, is of interest. Based on these factors, the objective of this thesis has been to establish the anti-asthmatic effect of four native Peruvian cocoas from different regions of the country: Blanco de Piura (BPC), Amazonas Peru (APC), Criollo de Montaña (CMC) and Chuncho (CCC). To achieve this, an allergic asthma model was developed that would allow the induction and objective quantification of an anaphylactic response using ovalbumin as allergen. At the same time, the bioactive compounds of cocoa were determined and the in vitro effect on immune cells was studied. The results showed a higher concentration of polyphenols, methylxanthines, antioxidant capacity and anti-inflammatory effect in Amazonas Peru and Criollo de Montaña cocoas. Next, the effect of diets enriched with 10% of these cocoas or a non-native ordinary cocoa was determined in the model of allergic asthma. The results show that cocoa diets are able to reduce the synthesis of antibodies associated with the Th2 immune response, however, ordinary cocoa showed a greater effect than native cocoa, being able to reduce the concentration of systemic and respiratory IgE. The Criollo de Montaña diet decreased the concentration of IgE in bronchoalveolar lavage fluid, while the Amazonas Peru diet only showed a tendency. Similar results were observed in the concentration of mast cell protease II. All cocoa diets reduced the production of systemic IgG1 and eosinophils and leukotrienes in the respiratory tract similarly, while the diet with Amazonas Peru showed a greater effect in reducing IgG2a. The diets with Criollo de Montaña cocoa and ordinary cocoa decreased the concentration of mucosal IgA . Therefore, the cocoas were able to palliate the Th2 immune response, although differences were observed between the cocoas, influencing both the theobromine content and flavonoid concentration and profile of each cocoa, which varies according to its origin.
- Published
- 2022
50. Immunogenic properties of Hepatitis A virus in two mouse strains. Preliminary results
- Author
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Moreno Pena, Nerea, Massot Cladera, Malen, and Castell, Margarida
- Subjects
Vaccines ,Bachelor's thesis ,Bachelor's theses ,Treballs de fi de grau ,Hepatitis A ,Vacunes - Abstract
Treballs Finals de Grau de Farmàcia, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, 2021. Tutores: Malen Massot i Margarida Castell, Hepatitis A (HA) is a viral disease caused by the hepatitis A virus (HAV) that occurs all over the world. It is transmitted by the faecal–oral route, and it is known that poor sanitary conditions increase the risk of HAV transmission. As no specific treatment for HA is available, prevention with vaccination strategies is the key to controlling the infection. Most of the available vaccines are inactivated vaccines adjuvanted with aluminium hydroxide. The slow growth of HAV and the need for an adjuvant make the vaccines’ economic cost relatively high and, what is more, there have been periods of vaccine shortages as demand has exceeded the production capacity. Recently, it has been demonstrated that HAV can be found encapsulated in a lipid membrane that resembles exosomes. Exosomes have been suggested to take part in Tcell stimulation and can induce an immune response without the need of an adjuvant. This study includes the preliminary experiments that will conclude with immunization with encapsulated HAV (eHAV) without adjuvant. In particular, herein we set up techniques to check an immunization protocol with HAV particles (with adjuvant) in two mouse strains (BALB/c and C75BL/6). These techniques include the proliferative capacity of spleen lymphocytes (ELISA), the antibody-secreting cells (ELISPOT) and the changes in the cell phenotype (flow cytometry). Although further studies remain to be done, the results obtained in the present study allow the defining of the mouse strain and obtention techniques to establish the immunization process.
- Published
- 2021
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