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Jaume Alijotas Reig

Instituciones de las que forman parte

Jefe de grupo
Enfermedades Sistémicas
Vall Hebron Institut de Recerca

Jaume Alijotas Reig

Instituciones de las que forman parte

Jefe de grupo
Enfermedades Sistémicas
Vall Hebron Institut de Recerca

Líneas de investigación

Predictive kit to detect the possible establishment of late adverse effects related to bioimplants used in clinical practice.

A high variability in the prevalence of adverse effects with an immunologic basis seems to be related with any implant used in clinical practice. We have managed to find a particular association of HLA haplotypes that increase the risk for developing these effects up to 600 times. We are nowadays working on setting up a safe and reliable biochip or kit which predicts this risk easily in a routine test.

IP: Jaume Alijotas Reig

Immunobiology and immunopathology of recurrent pregnancy loses and spontaneous loses.

Around 2-3% of reproductive-age couples suffer recurrent pregnancy loses. Almost 18% of couples that wish to have children suffer infertility problems. Simultaneously, 2-3% of all pregnant women are diagnosed with spontaneous loses. The expression of HLA molecules, specially type G, the degree of trophoblastic apoptosis, the outsourcing of new neoantigens such as phospholipids, the balance between Th1/Th2/Th3 cytokines, the type and quantity of CD4+CD25+Foxp3+ lymphocytes, the kind and the activity of uterine NK cells (uNK) cells, the presence or absence of blocking antibodies, and other mechanisms play different roles in the achievement of the so-called "tolerant microenvironment" needed to develop a normal pregnancy. Therefore, both autoimmune and alloimmune mechanisms are important. We aim at studying which isolated, and specially associated, anomalies can be identified as risk markers to be able to evaluate possible treatments.

IP: Jaume Alijotas Reig

Cellular microparticles study in women with and without antiphospholipid antibodies with recurrent pregnancy loses and preeclampsia.

Cellular microparticles (CMP) are released depending on the activation and/or the presence of cell apoptosis. They are capable of activating both inflammatory and coagulation pathways. It seems that levels of CMP are higher in healthy pregnant women. A working hypothesis establishes that an increase of CMP levels may be found in recurrent pregnancy loses and preeclampsia. It is thought that their thrombophilic capacity may be higher in those patients with anti-phospholipid antibodies, especially among those with lupus anticoagulant. We want to determine MPC levels in non-pregnant healthy women, pregnant women without previous abnormal obstetric events, women with recurrent pregnancy loses, and women with severe preeclampsia. We are also evaluating whether there are differences related to the presence or absence of antiphospholipid antibodies. Finally, we will also characterize the exact type of CMP (endothelial, platelet-like, leuco-monocyte, and throphoblastic).

IP: Jaume Alijotas Reig

Pathogenic role of cellular microparticles and anti-phospholipid/anti-cofactor antibodies in recurrent implantation failures related to In Vitro Fertilization (IVF).

The prevalence of failed IVF is high or very high. Besides problems intrinsic to the technique, we know almost nothing about the possible underlying causes. Anti-phospholipid/anti-cofactor (aPL/aCF) antibodies have been associated to several obstetric complications. Nevertheless, the role that these aPL/aCF antibodies may have in failed IVF is not well defined. With this randomized study we want to understand better the use that these antibodies may have on a clinical daily basis. Along with the microparticles analysis, we could end up by finding several elements that might act as risk markers; in turn, it might even help us to fine-tune the currently used therapeutic approaches.

IP: Jaume Alijotas Reig

Proyectos

Anticuerpos antifosfolipídicos inductores de memoria inmune innata en monocitos como causa de morbilidad obstétrica en el síndrome antifosfolipídico.

IP: Francesc Miro Mur
Colaboradores: Jaume Alijotas Reig, José Pardos Gea, Ariadna Anunciacion Llunell, Anticuerpos antifosfolipídicos inductores de memoria inmune innata en monocitos como causa de morbilidad obstétrica en el síndr
Entidad financiadora: Instituto de Salud Carlos III
Financiación: 102500
Referencia: PI24/01302
Duración: 01/01/2025 - 31/12/2027

Statin Intervention for Severe Early-Onset Placental Insufficiency: A Randomized Controlled Trial Assessing daily Administration as a Treatment Strategy (STATIN-PRE trial)

IP: Jaume Alijotas Reig
Colaboradores: Manel Mendoza Cobaleda, Francesc Miro Mur, Enrique Esteve Valverde, Ariadna Anunciacion Llunell, Statin Intervention for Severe Early-Onset Placental Insufficiency: A Randomized Controlled Trial Assessing daily Administratio
Entidad financiadora: Fundació La Marató de TV3
Financiación: 50625
Referencia: 202418-33
Duración: 20/09/2025 - 19/09/2028

Ajuts Grups de Recerca (SGR) 2022

IP: Jaume Alijotas Reig
Colaboradores: Moisés Labrador Horrillo, Carmen Pilar Simeón i Aznar, Anna Sala Cunill, Roser Solans Laque, Segundo Bujan Rivas, Mar Guilarte Clavero, Vicenç Fonollosa Pla, Fernando Martínez Valle, Victòria Cardona Dahl, Francesc Miro Mur, Alfredo Guillen Del Castillo, Albert Selva O'Callaghan, José Pardos Gea, Ariadna Anunciacion Llunell
Entidad financiadora: Agència Gestió Ajuts Universitaris i de Recerca
Financiación: 0.01
Referencia: 2021 SGR 00048
Duración: 01/01/2022 - 30/06/2025

Be Sure genetic test to determine dermal filler implant adverse reactions

IP: Jaume Alijotas Reig
Colaboradores: -
Entidad financiadora: CERCA (Centres de Recerca de Catalunya)
Financiación: 10000
Referencia: 2020-07-010
Duración: 01/01/2019 - 31/12/2020

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