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Jaume Alijotas Reig

Institutions of which they are part

Head of group
Systemic Diseases
Vall Hebron Institut de Recerca

Jaume Alijotas Reig

Institutions of which they are part

Head of group
Systemic Diseases
Vall Hebron Institut de Recerca

Research lines

Immunologic lesional mechanisms in late adverse reactions against bioimplants.

The late clinical manifestations that arise when bioimplants are applied seem to have an immunologic basis. We are studying both the histological characteristics and the lesional mechanisms of the most frequently used implants. We try to analyze the role that bacteria may have in the induction and/or maintenance of these reactions and the possible correlation between particular HLA haplotypes and the adverse effects.

IP: Jaume Alijotas Reig

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

Projects

Ajuts Grups de Recerca (SGR) 2022

IP: Jaume Alijotas Reig
Collaborators: 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, Laura Donaire Lancharro, Ariadna Anunciacion Llunell
Funding agency: Agència Gestió Ajuts Universitaris i de Recerca
Funding: 0.01
Reference: 2021 SGR 00048
Duration: 01/01/2022 - 30/06/2025

Be Sure genetic test to determine dermal filler implant adverse reactions

IP: Jaume Alijotas Reig
Collaborators: -
Funding agency: CERCA (Centres de Recerca de Catalunya)
Funding: 10000
Reference: 2020-07-010
Duration: 01/01/2019 - 31/12/2020

Factores angiogénicos durante la gestación y riesgo cardiovascular a medio-largo plazo en las pacientes con preeclampsia. Abordaje clínico y experimental.

IP: Jaume Alijotas Reig
Collaborators: Manel Mendoza Cobaleda, Josep Perapoch López
Funding agency: Instituto de Salud Carlos III
Funding: 71995
Reference: PI16/01997
Duration: 01/01/2017 - 31/12/2019

Incorporación del ratio sFlt1/PlGF en el diagnóstico y clasificación de preeclampsia: Ensayo clínico randomizado (EuroPE estudio)

IP: Elisa Llurba Olivé
Collaborators: Jaume Alijotas Reig, Manel Mendoza Cobaleda
Funding agency: Instituto de Salud Carlos III
Funding: 111925
Reference: PI16/00375
Duration: 01/01/2017 - 13/06/2017

Related news

Researchers have used an innovative protocol to identify people with this autoimmune disease who have a higher risk of cancer.

It will allow the promotion of research on systemic autoimmune-based diseases that especially affect women of childbearing age and, therefore, can also appear during pregnancy.

The study showing how thrombocytopenia increases the risk of thrombosis in patients with antiphospholipid syndrome has been considered the best paper published in 2021.

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