Researchers at Sant Pau have recently published in the Annals of Neurology a study that shows that the presence of depression in Parkinson’s patients is a risk factor in the appearance of behavioural addictions. The work has been led by Dr. Jaume Kulisevsky, head of the Parkinson’s Disease and Movement Disorders Group at the IIB Sant Pau and head of the Movement Disorders Unit of the Neurology Service at the Sant Pau Hospital, and Dr. Juan Marín Lahoz of the same group and unit.

Parkinson’s disease is mainly known for the tremors and mobility difficulties it generates. Many patients whose treatment allows them to have normal mobility have behavioural addictions such as pathological gambling, hypersexuality or compulsive shopping. The consequences of these disorders can be devastating for patients and their families. For this reason, researchers are working to identify patients at risk of behavioural addiction with the aim of carrying out personalised treatments to reduce the risk. Depression is a very common disorder in Parkinson’s disease that can affect up to 40% of patients at some point. It often appears a few years before the diagnosis of the disease. In recent years, some studies have shown that the symptoms of depression were more frequent in patients with behavioural addictions than in those who did not have them. However, it was not known if depression was a consequence of suffering addictions or if it could be a precursor of addictions. “What we wanted to confirm is that depression plays a role in the onset of behavioral addictions in Parkinson’s disease, we showed how depression precedes the onset of addictions up to 5 years and that the risk depends on other factors, such as age or the main genes associated with Parkinson’s disease,” explains Dr. Kulisevsky.

“There were some risk markers of behavioural addictions, but their application required complex techniques such as the analysis of multiple genes, so far have not led to any change in the treatment of Parkinson’s disease, but the presence of depression is a risk factor very easily identifiable in a conventional visit which allows to customize the treatment to obtain the maximum quality of life of each patient, “adds Dr. Marin. The study was carried out within the framework of the PPMI (Parkinson’s Progression Markers Initiative) study promoted by the Michael J. Fox Foundation for the Parkinson’s study. This study tracks about 1,500 people worldwide to understand and cure Parkinson’s disease. This project has been financed with grants from the Fundación La Marató de TV3, the Fondo de Investigación en Salud and the CIBER de Enfermedades neurodegenerativas of the Instituto de Salud Carlos III.

Reference article

The Activa’TT Association, formed by researchers from Sant Pau, starts a crowdfunding campaign to raise money in favor of research into vascular diseases. One of the first actions is the campaign presentation video that you can see at: https://www.gofundme.com/f/activattdia-mundial-contra-la-trombosis.

Within the framework of the next World Day against Thrombosis, the researchers organized two activities: The Chronic Venous Insufficiency Prevention Campaign, which will take place in the hall of the Hospital de Sant Pau on October 11 from 9 a.m. to 2 p.m., and the presentation of the documentary by Alex Txikon, “Pumori, La hija de la montaña”, on October 13 at 7 pm at the Center Lluïsos d’Horta.

Activa’TT por la Salud is a non-profit association established in 2015 by health professionals from the Sant Pau Biomedical Research Institute (IIB Sant Pau) and the Hospital de la Santa Creu i Sant Pau, in order to inform and raise awareness of the importance of vascular diseases and to raise funds for research in these diseases to improve research, its prevention, diagnosis and treatment. For this reason, it promotes training, research and information activities, aimed at patients, health professionals and society in general.

Events organized around the World Day against Thrombosis
October 11 9-14 h: Campaign for the Prevention of Chronic Venous Insufficiency: Ultrasound of the veins of the legs to discard varicose veins and thrombosis. Hall of the Hospital de Sant Pau.
October 13 at 19 h: Presentation at the Lluïsos d’Horta Center of Alex Txikon’s documentary, “Pumori, La hija de la montaña”. Get your invitation here: https://activatt.com/

Lluïsos d’Horta
Carrer Feliu i Codina, 7
08031 Barcelona
Metro Linea 5: Horta

Five components of the Sakana-Pumori Guipúzcoa expedition lost their lives on October 17, 2001 on Mount Pumori (7.161 meters high) as they were surprised by an avalanche when trying to make the summit. The other five components of the expedition could only give notice of what happened and, after trying an impossible rescue, they had to go back.

A year later, Arantxa Gurrutxaga and Peio Arrue, parents of Beñat (one of the dead climbers), returned to Nepal with a double objective: to approach the site of the tragedy to remember and pay homage to the disappeared and to try to find a girl from Nepal who appeared with his son in the last photo he had of him.

Thus begins the story of Suku Maya and the Arrue Gurrutxaga family, who is the driver of the documentary.

The Sant Pau Biomedical Research Institute (IIB Sant Pau) in collaboration with Dr. Ariadna Tibau of the Clinical Oncology Research Group and the Oncology and Palliative Care Service of the Sant Pau Hospital organize the seminar “The use of aggregate clinical trials data to address uncertain effects of treatment” by Dr. . Eitan Amir, Princess Margaret Cancer Centre, Division of Medical Oncology, University of Toronto, Canada. The meeting on this occasion will be held in the IR Room of the Sant Pau Research Institute (Sant Quintí, 77, street level) at 8.15 am.

The Sant Pau Biomedical Research Institute (IIB Sant Pau) in collaboration with the Research Group on Molecular and Therapeutic Pathology of Atherothrombotic and Ischemic Diseases, led by Prof. Lina Badimon, organises the seminar “Assessing vascular and ventricular function in cardiovascular research. New tools provide new insight “by Dr. Javier Bermejo, head of the non-invasive cardiology and cardiovascular imaging section of the Cardiology Service of the Gregorio Marañón General University Hospital. The appointment is next September 25 at 15.00 in the multipurpose rooms.

The Dementia Neurobiology Group and the Genetics in Neurodegenerative Diseases Group of the Sant Pau Biomedical Research Institute (IIB Sant Pau), together with the Memory Unit of the Neurology Service of the Sant Pau Hospital, validate a technique for the early detection of Alzheimer’s disease. The study led by the researchers of San Pablo, which internationally validates the new technique, is entitled “Agreement of Amyloid PET and CSF Biomarkers for Alzheimer’s disease where Lumipulse” and has recently been published in the journal Annals of Clinical and Translational Neurology.

Early detection of Alzheimer’s using biomarkers

The clinical diagnosis of Alzheimer’s disease can sometimes be complicated, either because the symptoms are not very specific or because they are very incipient. In recent years, the scientific community has made a great effort to develop biomarkers of the disease, i.e. biochemical and neuroimaging analysis techniques to facilitate early diagnosis in these cases. The search for biomarkers and the study of their clinical usefulness for the early detection of the disease has been one of the priority lines of research of researchers in Sao Paulo in the last ten years.

How the study has been done

The study involved nearly 100 patients and volunteers from the SPIN study (https://santpaumemoryunit.com/ca/linies-recerca/cohort-spin/) who underwent a lumbar puncture to obtain cerebrospinal fluid. These same participants underwent a brain imaging test (PET) to visualize the presence or absence of cerebral amyloid deposits. In the study, the values of four biomarkers in the fluid analyzed by an automated technique were compared with the amyloid PET images for each participant.

Main results

The comparison between cerebrospinal fluid and amyloid PET allowed us to establish the levels of these four proteins (or “cut-off points”) in the cerebrospinal fluid that best detected the presence or absence of cerebral amyloid deposits. The combination of two proteins, Aß42 and Aß40, allowed to discriminate better the presence/absence of cerebral amyloid than Aß42 in an isolated way. In addition, in this study the Sant Pau researchers have collaborated with the company that develops the reagents to find the normal values of these proteins in healthy people, as was done with cholesterol or glucose in the past. This step is essential to define normal values.

Relevance of the study

Until now, the analysis of Alzheimer’s markers in cerebrospinal fluid was done using manual techniques (ELISA), which implied a great variability between analyses and hindered their implementation in clinical practice. Recently, automated analysis techniques have been developed, much more reproducible and consistent for use as a diagnostic tool. This study allows us to establish optimal cut-off points in our population using an automated technique (Lumipulse). The validation carried out in this study has allowed that since the beginning of the year the analysis of cerebrospinal fluid for the early detection of Alzheimer’s disease has been extended from the field of research to its use in routine care at the Hospital de Sant Pau. It is the first hospital to implement this automated technique in its healthcare routine. These analyses make it possible to confirm or rule out the diagnosis of Alzheimer’s disease in patients with very mild or non-specific symptoms of the disease.

Considerations

Although analyses using automated techniques are much more consistent, there are still certain limitations that cause determinations to vary between different centers. Therefore, the application of the cut-off points detailed in this study should be done cautiously in other centers where the conditions of extraction, processing, and storage of samples differ from those applied in our study.

Reference article:

https://onlinelibrary.wiley.com/doi/full/10.1002/acn3.50873

Dr. Jordi Sierra, director of the Sant Pau Haematology Service and head of the Oncological Haematology and Transplantation Group at the Sant Pau Research Institute, is one of the driving forces behind the RET-A project ‘Strategic Reflection on the Management and Implementation of New Advanced Therapies’, a pioneering initiative in Spain that will be the first think tank ‘(ideas laboratory) to deepen, analyse and expose the challenges and opportunities of new cell therapies.

This analysis will try to answer four key questions: what is the starting map, what would be the desired comprehensive care process, what are the innovative models of economic evaluation to apply and what is the future of these therapies. At its first meeting, the CORE Advisory Group, in which the Sociedad Española de Directivos de la Salud (SEDISA) participates, among others, met to propose the most appropriate framework, design and scope of the project, on which the technical working groups will subsequently work.
This driving group is made up of, in addition to Dr. Jordi Sierra, for the president of the Sociedad Española de Farmacia Hospitalaria (SEFH), Dr. Miguel Ángel Calleja; the director of the Hematology Service of the Hospital General Universitario Gregorio Marañón in Madrid, Dr. José Luis Díez; the president of SEDISA, Joaquín Estévez; Doctor Ramón García Sanz, haematologist at the University Hospital of Salamanca and elected president of the Spanish Society of Haematology and Haemotherapy (SEHH); the director of the Haematology Service at the University Hospital 12 de Octubre in Madrid, Doctor Joaquín Martínez and the president of the Spanish Society of Medical Oncology (SEOM), Doctor Ruth Vera.

Dra. Gemma Vilahur, researcher of the “Institut de Recerca de l’Hospital de la  Santa Creu i Sant Pau – IIB Sant Pau”, has been awarded at the European Society of Cardiology (ESC) Congress in Paris by the Council for Basic Cardiovascular Science (CBCS) with the Outstanding Achievement Award  in recognition of her outstanding achievements during the early stages of her career “

The group Genomic Instability and DNA Repair of the IIB Sant Pau, coordinated by Dr. Jordi Surrallés, director of the Genetic Service of the Hospital de Sant Pau, participates in a clinical trial of gene therapy whose results have been published in the prestigious journal Nature Medicine. The participation of this research group has focused on leading the genetic studies necessary for the recruitment and follow-up of the patients participating in the clinical trial.

The multinational team of researchers has used genetically modified viruses as a vehicle to introduce a gene into stem cells extracted from the blood of patients affected by a serious genetic disease, Fanconi’s anemia, characterized by high chromosomic fragility.

Genetically-corrected cells have been re-introduced to patients as if it were a self-transplant but without danger of rejection, or risk of causing graft disease against the host and without using conditioning chemotherapy. Unlike conventional transplants with healthy stem cells that may involve months of hospitalization in sterile chambers, patients in this clinical trial have required only 2-3 days of hospitalization.

The team of Dr. Surrallés, has been responsible for diagnosing genetically the patients who have entered the clinical trial, using chromosomal techniques to determine their chromosomal fragility, and mass-sequencing techniques of new generation of exons to determine the mutated gene and specific mutation of each patient. Only patients with mutations in the FANCA gene have been recruited in this trial.

The researchers have been able to see how genetically corrected cells are able to repopulate the marrow, cause a decrease in chromosomal fragility and stop the progression of anemia in different patients.

Reference article
Successful Engraftment of Gene Corrected Hematopoietic Stem Cells in Non-conditioned Fanconi Anemia Patients. Paula Río et al. Nature Medicine. 9th Sept. 2019. DOI: 10.1038/s41591-019-0550-z

The Catalan Agency for Healthcare Quality and Evaluation (Aqua), an entity attached to the Department of Health of the Generalitat of Catalonia, has made public the final decision on the granting of subsidies for the PERIS 2018 call for proposals. Rodrigo Álvarez Velasco, Gemma Berga Congost , Francisco Javier de Diego Adelina and Javier Pagonabarraga Mora, all researchers from the Sant Pau Research Institute, have been selected to receive different grants in this call.

Granted by PHD for Medical Doctors (PhD4MD), IIB-Sant Pau

Rodrigo Álvarez Velasco, Neuromuscular Disease Research Group.

Grants granted for intensifying the research activity of health professionals with IIB Sant Pau training

Dr. Francisco Javier De Diego Adelina, Clinical Psychiatry Research Group.
Dr. Javier Pagonabarraga Mora, Research Group on Parkinson’s Disease and Movement Disorders.

Grants awarded for intensification of research activity in nursing and physiotherapy – IIB Sant Pau

Gemma Berga Congost, Care Research Group.

The American Association for Frontotemporal Dementia (AFTD) has awarded Dr. Oriol Dols-Icardo, a research member of the Genetics in Neurodegenerative Diseases Group at the IIB Sant Pau, a two-year postdoctoral fellowship to investigate the genetic basis of this disease.

More information

Dr. Eugenia Mato and Dr. Juan Carlos Escolà-Gil, both researchers at the IIB Sant Pau, lead a micro-patronage project with the final objective of generating an experimental model of poor prognosis thyroid epithelial cancer to test new therapeutic strategies.

All proceeds from this campaign will be used to complete in vitro studies in human cell models. In this link you will find the summary of the research project: https://www.precipita.es/proyecto/colesterol-y-cancer-de-tiroides.html

Collaborate with the project: https://ciencia.precipita.es/tiroides

Five research groups at the IIB Sant Pau participate in the micro-patronage project: the Endocrinology, Diabetes and Nutrition Group, the Metabolic Basis of Cardiovascular Risk Group, the General and Digestive Surgery Group, the Oncology Clinical Research Group and the Molecular Pathology of Cancer Group. The scientists of San Pablo want to give continuity to the research project they started four years ago and which has recently been published in the prestigious journal Scientific Reports, which demonstrates the role of cholesterol and one of its main metabolites, 27-hydroxycolesterol (27HC) in the growth of the thyroid tumour, as well as in its aggressiveness. This micro-patronage project is launched thanks to the support of the PRECIPITA platform of the Spanish Foundation for Science and Technology (FECYT), which aims to create meeting points between researchers, society and people interested in science.

Reference article: “Cholesterol and 27-hydroxycholesterol promote Thyroid carcinoma aggressiveness”. Giovanna Revilla, Monica de Pablo Pons, Lucía Baila-Rueda, Annabel García-León, David Santos, Ana Cenarro, Marcelo Magalhaes, RM Blanco, Antonio Moral, José Ignacio Pérez, Gerard Sabé, Cintia González, Victoria Fuste, Enrique Lerma, Manuel dos Santos Faria, Alberto de Leiva, Rosa Corcoy, Juan Carlos Escolà-Gil & Eugenia Mato. Scientific Reports 2019

Researchers at Sant Pau i del IMIM have discovered a new biomarker, the sLRP1 receptor, which predicts the risk of developing cardiovascular disease in people who currently have no symptoms. This biomarker provides novel and complementary information to what is already known today.
Cardiovascular diseases continue to be the main cause of death in Spain. In addition, it is estimated that every year some 125,000 people present with an acute myocardial infarction. For this reason, researchers are working to identify some blood parameters (biomarkers) to identify people most at risk of these diseases.
The study, recently published in the journal Atherosclerosis, and led by Dr. Vicenta Llorente Cortés and Dr. David de Gonzalo of the Sant Pau Biomedical Research Institute (IIB-Sant Pau) and the IIBB-CSIC, and Dr. Roberto Elosua and Dr. Jaume Marrugat of the Institut Hospital del Mar d’Investigacions Mèdiques (IMIM), all members of the cardiovascular disease cybercv.
The sLRP1 is a biomarker that plays an important role in the onset and progression of atherosclerosis, which is the mechanism that explains the most serious diseases of the heart. Previous studies by the IIB-Sant Pau Lipids and Cardiovascular Pathology research group had already indicated that sLRP1 was associated with an acceleration of the atherosclerosis process, with a greater accumulation of cholesterol and inflammation in the wall of the arteries, but this is the first evidence that also predicts the appearance of clinical events such as myocardial infarction. “The question we wanted to answer was whether the determination of a new blood biomarker (sLRP1) could predict cardiovascular risk at 10 years,” explains Dr. de Gonzalo.
As Dr. Llorente Cortés points out, “this discovery confirms the relevance and applicability of sLRP1 in clinical practice to predict well in advance the risk of developing cardiovascular disease in people who currently have no symptoms”.
Dr. Elosua indicates that “for each increase in one unit of sLRP1 the risk of presenting with heart disease increases by 40%”. In addition, as Dr. Marrugat points out, “this increase is independent of other risk factors such as cholesterol, tobacco, high blood pressure and diabetes. So this biomarker provides novel and complementary information to what we already know today.
The study was carried out within the framework of the REGICOR study (Registre Gironí del Cor) which has been following for more than 15 years more than 11,000 people in the province of Girona.
This project is financed with grants from the Strategic Plan for Research and Innovation in Health (PERIS, SLT002/16/00088) of the Generalitat de Catalunya, the Fundació La Marató TV3 and the CIBER Cardiovascular Diseases of the Instituto de Salud Carlos III.

Reference article
de Gonzalo-Calvo D, Elosua R, Vea A, Subirana I, Sayols-Baixeras S, Marrugat J, Llorente-Cortés V. Soluble low-density lipoprotein receptor-related protein 1 as a biomarker of coronary risk: Predictive capacity and association with clinical events. Atherosclerosis. 2019 Jun 16;287:93-99. doi: 10.1016/j.atherosclerosis.2019.06.904. [Epub ahead of print] PubMed PMID:31247347.

Within the seminar cycle of IIB Sant Pau, this fall the lectures will be given by Prof. Charlotte Cordonnier, Dr. Javier Bermejo, Dr. Analia Bortolozzi, and Prof. Laurent Duca.

From September 30 to October 10 will take place the second edition of “Theoretical-practical course of Training in cell culture. Theory and techniques “, organized by the Microbiology Service of Sant Pau. A tutored, eminently practical learning, so that the student acquires an experience in the manipulation of cell cultures that allows him to reinstate the techniques in his laboratory. A course aimed at technicians with a bachelor’s degree, graduates in Health Sciences or Biosciences. Attached you will find the information of this second edition.

The Association CADASIL España recently made a donation of 5,500 euros to the Research Group of pharmacogenomics and neurovascular genetics of the IIB Sant Pau, led by Dr. Israel Fernández Cadenas.

CADASIL is a hereditary disease caused by a mutation in the NOTCH3 gene. Its characteristic symptoms are migraine, psychiatric disorders such as anxiety or depression, stroke and dementia at an early age, dealing with the most frequent cause of hereditary vascular dementia. The Research Group of the IIB Sant Pau collaborates with the association through its research and giving visibility to CADASIL’s disease.

You can visit the informative website about the disease: www.cadasil.es 

Researchers at the Research Institute of Sant Pau (IIB Sant Pau) and CIBER, led by Eugenia Mato of the Endocrinology, Diabetes and Nutrition Research Group and Joan Carles Escolà-Gil of the Risk Metabolic Basis Research Group Cardiovascular, have shown the role of cholesterol and one of its main metabolites, 27-hydroxycholesterol (27HC) in the growth of the thyroid tumor, as well as in its aggressiveness. The work has been published in Scientific Report.

Research shows that tumor human cells develop more rapidly in cholesterol-containing cultures than in their absence, due to their subsequent 27 HC transformation in the interior of the tumor cell. Studies were corroborated in human thyroid epithelial cancer tissues, where a direct association was found between the tumor aggressiveness and a reduction in the main enzyme that eliminated the 27HC molecule, the CYP7B1.

The work, published in Scientific Reports, shows that 27H promotes the growth and spread of the most common types of thyroid cancer. The authors, who belong to CIBER and the Research Institute of Sant Pau, claim that “Thyroid cancer tumors, because they present a reduction in the enzyme to eliminate 27HC, are generating a molecule that promotes the growth of the tumor “.

“Reducing cholesterol through changes in dietary or drug habits could reduce the risk of thyroid cancer,” says Giovanna Revilla, the first signatory of the work and researcher who conducts her doctoral thesis at the Research Institute of Sant Pau. In addition, “a drug that activates the CYP7B1 enzyme could help prevent or, at least, treat this disease,” he adds.

The researchers that led this study belong to the CIBER of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN) and the CIBER of Diabetes and Associated Metabolic Diseases (CIBERDEM). Researchers Rosa Corcoy, Cintia González and Alberto de Leiva from the Research Group of Endocrinology, Diabetes and Nutrition of the IIB Sant Pau and members of the Endocrinology Service of the Hospital de la Santa Creu i Sant Pao have also participated. Sant Pau and the CIBER-BBN; Enrique Lerma and Victoria Fuste of the Pathological Anatomy Service of the same Hospital; Antonio Moral and José Ignacio Pérez of the General and Digestive Surgery Service of Sant Pau; Mònica de Pablo Pons, Annabel García-León, David Santos, Gerard Sabé and RMª Blanco of the Research Institute of Sant Pau; Lucia Balla-Rueda and Ana Cenarro from CIBERCV and the Institute of Health Research Aragón; and Marcelo Magalhaes and Manuel dos Santos Faria from the Hospital of the Federal University of Maranhão in Brazil.

Reference article:
“Cholesterol and 27-hydroxycholesterol promote thyroid carcinoma aggressiveness“. Giovanna Revilla, Monica de Pablo Pons, Lucía Baila-Rueda, Annabel García-León, David Santos, Ana Cenarro, Marcelo Magalhaes, RM Blanco, Antonio Moral, José Ignacio Pérez, Gerard Sabé, Cintia González, Victoria Fuste, Enrique Lerma, Manuel dos Santos Faria, Alberto de Leiva, Rosa Corcoy, Joan Carles Escolà-Gil & Eugenia Mato. Scientific Reports 2019

The Dra. Gemma Arderiu, from the Research Group on Molecular and therapeutic pathology of atherothrombotic and ischemic diseases of the Research Institute of Sant Pau, is the first signer of the article: MicroRNA-145 Regulates the Differentiation of Adipose Stem Cells Toward Microvascular Endothelial Cells and Promotes Angiogenesis.

The work, which shows that the differentiation of mesenchymal cells derived from adipose tissue into endothelial cells has beneficial effects on the formation and stabilization of neo-blood vessels, favoring post-ischemic neovascularization and tissue re-infusion, has It has been recently published in the prestigious Circulation Research magazine.

MicroRNA-145 Regulates the Differentiation of Adipose Stem Cells Toward Microvascular Endothelial Cells and Promotes Angiogenesis.

Having specific biomarkers that help improve decision-making and develop new therapeutic strategies in case of coronary heart disease is key, and in this line researchers from the CIBER of Cardiovascular Diseases (CIBERCV) have fostered a study that explores the diagnostic capacity of circulating microRNAs in patients suspected of stable coronary heart disease.
The researchers David de Gonzalo Calvo and Vicenta Llorente Cortés – from the group of Lipids and Cardiovascular Pathology – and Francesc Carreras Costa – from the Clinical and Translational Cardiology group – both from the CIBERCV of the Sant Pau Biomedical Research Institute (IIB Sant Pau) and the Biomedical Research Institute of Barcelona (IIBB-CSIC) have published this study in the prestigious Journal of Internal Medicine. A study that is based on an approach to the actual clinical practice in which the potential of circulating microRNA as biomarkers of stable coronary heart disease in certain groups of patients is revealed.

A fundamental role in physiological and pathological processes
MicroRNAs are small non-coding RNAs involved in gene regulation and play a fundamental role in physiological and pathological processes, finding not only the cellular interior, but also in body fluids such as blood, so they are key as non-biomarkers Invasive for diagnosis, prognosis and even therapeutic evaluation of diseases. Thanks to this research, the plasma levels of a 10 microRNA panel previously described by CIBERCV researchers as indicators of coronary atherosclerosis have been analyzed in patients suspected of stable coronary heart disease evaluated in the Cardiac Imaging Unit of the Hospital of the Holy Cross and Saint Paul.

According to David de Gonzalo, “our study highlights the potential of circulating microRNAs as biomarkers of stable coronary heart disease, and in this particular case, the results suggest that they are useful biomarkers in certain subgroups of patients.”

In this way, it seems that the utility of microRNA is superior in subject-specific phenotypes, so that “our work supports the incorporation of new molecular indicators in clinical decision making, thereby facilitating medical attention personalized “, says researcher David de Gonzalo.

In this work, researchers collected plasma samples from 200 patients sent for coronary angiography classified according to their severity, analyzing a panel of 10 microRNAs previously associated with stable coronary heart disease. After a comprehensive adjustment that included cardiovascular risk factors, drug use and protein-based biomarkers, several circulating microRNAs were reversedly associated with the extent and severity of atherosclerosis. The detailed analysis as biomarkers suggested the poor diagnostic capacity of the microRNA in terms of discrimination, evaluated both separately and in combination with clinical history, in the entire population. However, its inclusion in decision trees generated models that improved the classification of cases and controls in certain subgroups of patients.

Reference article:
De Gonzalo-Calvo, Vilades, Martínez-Camblor, Vea, Nasarre, Sanchez Vega, Leta, Carreras, Llorente-Cortés. Circulating microRNAs in suspected stable coronary artery disease: A coronary computed tomography angiography study DOI: 10.1111/joim.12921

Researchers from the group Brain Cognition and Plasticity of the Biomedical Research Institute of Bellvitge (IDIBELL) and the Institute of Neurosciences of the University of Barcelona (UB), with the collaboration of Radboud University in the Netherlands , have identified two specific patterns of cerebral disorders underlying two clinical profiles of Huntington’s disease. The study, published in Neuroimage: Clinical, can help develop specific biomarkers and personalized treatments for each profile of this minority illness. The study also involved different hospitals in Barcelona, such as Sant Pau, Bellvitge, Clínic and Mare de Déu de la Mercè, which allowed researchers to investigate with a sample of large patients, a fact of special importance in a minority illness such as Huntington’s disease.

The research, led by doctors Estela Cámara and Ruth de Diego and with the predoctoral researcher Clara García Gorro as the first author, broadens the knowledge about Huntington’s disease. This neurodegenerative genetic disease is characterized by generating motor, cognitive and psychiatric deficits, but there is “a very large symptomatic heterogeneity among patients, so we decided to investigate the neurobiological bases of these differences to see if we could link them to the clinical profiles, “explains the doctor of Diego, researcher ICREA.

For the study, the researchers used a technique of multimodal fusion analysis that allows to combine different types of modalities of images by magnetic resonance. “This type of analysis allows us to integrate the information of the different modalities and thus study the brain and the pattern of neurodegeneration in a more global way, which makes it possible to identify more subtle cerebral alterations,” explains Dr. Camara.

The analysis of the relationship between the symptoms of the disease and the measures of the structural alterations of the white and gray matter allowed the researchers to establish that the cognitive and motor symptoms shared a common neurobiological basis while the psychiatric domain had a signature differentiated neural

“Cognitive and motor symptoms were associated together with a gray matter reduction pattern, the cortical thickness and the integrity of the white substance in brain regions responsible for the execution of movements and the processing of different cognitive functions, such as memory, planning or visual-spatial processing. Depressive symptoms, on the other hand, were associated with a very different pattern, characterized by a lower thickness in the cerebral cortex in regions responsible for the emotional processing typically associated with alterations psychiatric, “adds Dr. García Cap.

These results provide a new vision of a disease traditionally considered as a uniform entity, and promote new lines of research that take into account these individual qualitative differences. “Our results are especially relevant in the context of clinical trials, as they could be used to define specific biomarkers for each symptomatological profile, even before clinical signs appear,” says Dr. Cámara, adding that “in addition In addition, we are opening a door to personalized medicine in Huntington’s disease, as it increases the likelihood of finding individualized treatments aimed at specific cognitive, motor, and psychiatric disorders. ”

Article reference
Garcia-Gorro C, Llera A, Martinez-Horta S, et al. (2019) Specific patterns of brain alterations underlie distinct clinical profiles in Huntington’s disease. NeuroImage: Clinical. In Press, Accepted Manuscript, Available online 15 June 2019.

Dr. Josep Julve, from the research group Cardiovascular Risk Metabolic Bases, from the Research Institute of Sant Pau, explained the project funded by La Marató de TV3 in which he is working on a group of interested citizens.

“Diabetic cardiomyopathy” is a common cause of heart failure in diabetic patients. Currently, specific biomarkers are not available to make their diagnosis precocious or to predict their clinical evolution. The objectives of the study, funded by the Fundación La Marató de TV3, are to study the contribution of LDL lipoproteins modified in the pathogenesis of this cardiomyopathy in experimental models and identify circulating biomarkers of the lipid metabolism, related to the accumulation of fat In the heart and heart function disorders, which can be used for early diagnosis and the clinical prognosis of this cardiomyopathy in patients.

This project is part of a joint initiative between researchers from the Research Institute of the Sant Pau Hospital (Dr. Josep Julve) and the Institute for Research in Health Sciences Germans Trias i Pujol (Dr. Núria Alonso).