1/03/2016 - Press release
A study published in the prestigious journal Scientific Reports from the Nature group demonstrates, for the first time and using computational tools, that polyunsaturated lipids can alter the binding rate of two types of receivers involved in certain nervous system diseases. The work was led by members of the Research Programme on Biomedical Informatics at the IMIM (Hospital del Mar Medical Research Institute) and Pompeu Fabra University as well as researchers from the University of Tampere (Finland), and also involved scientists from the University of Barcelona. Using latest-generation molecular simulations, which are like “computational microscopes”, the researchers have demonstrated that a decrease in polyunsaturated lipids in neuronal membranes, as seen in Parkinson's and Alzheimer's sufferers, directly affects the binding rate of dopamine and adenosine receptors.
Més informació "Regulating neuronal membrane lipids could be the key to Alzheimer's and Parkinson's"
11/02/2016 - Press release
People with anxiety disorders have an increased risk of suffering chronic diseases such as heart disease, chronic pain, and peptic ulcers. This is one of the conclusions of a new study published in JAMA Psychiatry, led by the University of Otago (New Zealand) and involving Dr Jordi Alonso, director of the Epidemiology and Public Health programme at the Hospital del Mar Medical Research Institute (IMIM) and a CIBERESP researcher. The study found that all kinds of mental health disorders, related to mood, anxiety, and impulse control, as well as substance use disorders, are associated with an increased risk of a wide range of chronic physical diseases. The researchers studied the relationship between mental disorders and ten diseases: arthritis, chronic pain, heart disease, stroke, hypertension, diabetes, asthma, chronic lung disease, peptic ulcers, and cancer.
08/02/2016 - Press release
Researchers from the Hospital del Mar Medical Research Institute (IMIM) have found an epigenetic mechanism implicated in the regulation of blood sugar. The study, published in the journal Molecular Human Genetics, reveals that the methylation of the TXNIP gene is associated with diabetes mellitus type 2 and, in particular, average blood glucose levels. These results, replicated in two patient cohorts, could help to both identify patients at risk of developing diabetes and control treatment response, as well as generating possible future therapies for this disease, one of the major cardiovascular risk factors in the population. The work was coordinated by Carolina Soriano, from the Neurovascular research group at the IMIM, and Jordi Jiménez Conde, from the same group and a neurologist at the Hospital del Mar, in collaboration with the IMIM's Cardiovascular Epidemiology and Genetics group.
27/01/2016 - Press release
According to an epidemiological study carried out by researchers at the Hospital del Mar Medical Research Institute (IMIM), increasing the money you spend on food is linked to a better quality diet, particularly increased consumption of fruit and vegetables, leading to a healthier weight and decreased risk of cardiometabolic diseases like obesity, diabetes, and cardiovascular problems. The researchers monitored a group of 2181 Spanish men and women aged 25 to 74, all part of the REGICOR (Registre Gironí del Cor) programme, for a period of ten years. They measured their height and weight, and recorded dietary data obtained from a scientifically validated food frequency questionnaire. The average food cost was calculated using official government data.
Més informació "Spending more on food is associated with a healthier diet and weight"
18/01/2016 - Press release
Researchers from the Hospital del Mar Medical Research Institute (IMIM) in collaboration with scientists from Pompeu Fabra University, the Pasteur Institute andPierre and Marie Curie University, have discovered a crucial neural mechanism that explains the process of nicotine reward and addiction. Nicotine, the principal psychoactive component of tobacco, is quickly absorbed through the nasal, oral and respiratory membranes and takes 7 seconds to reach the brain where the receptors are located. It is there where it acts on the central nervous system as well as the autonomic nervous system. This almost immediate relationship between the inhalation of the smoke and its effect at a cerebral level is one of the factors contributing to the highly addictive nature of nicotine. This is explained by the fact that the nicotine exerts its psychopharmacological effects by activating receptors that are very abundant in several specific regions of the brain, the nicotinic acetylcholine receptors (nAChR).
Més informació "A novel brain mechanism for nicotine addiction"
11/01/2016 - Press release
Research just published in the journal Plos Genetics has found that gaining new genes during evolution is a much more frequent event than previously thought. It has been seen that there are hundreds of genes that might be unique to humans, and something similar occurs in chimpanzees. Some of these genes will be useful for the organism in question and the rest will disappear in time. The work was led by Mar Albà, an ICREA researcher at the Mar Institute of Medical Research (IMIM) and Jorge Ruiz-Orera, from the same group, together with researchers from Pompeu Fabra University (UPF) and the Centre for Genomic Regulation (CRG). For some time it was thought that all new genes originated from other genes, for example, from duplications of already existing genes. But recently it has been seen that some, the so-called de novo genes, originate in genomic regions that previously contained none. According to Mar Albà “This work shows that the formation of DNA motifs, through the accumulation of random mutations, would have been a determining factor in the emergence of new genes.” DNA motifs are elements that activate gene expression.
22/12/2015 - Press release
A study by the Cardiology Service's Heart Failure Unit at the Hospital del Mar and IMIM (Hospital del Mar Medical Research Institute) has demonstrated that patients with chronic heart failure (HF) who are telephonically monitored have better results with regard to relapse and rehospitalisation than patients that receive conventional on-site follow-up. For six months the researchers used an electronic platform to analyse the evolution of a group of telephonically monitored patients, who used videoconferencing to communicate with the healthcare team. According to the study published in the Journal of Telemedicine and Telecare, the group being monitored using telemedicine also involved a 3,546 euro reduction in average cost per patient compared to the control group, over the six months of follow-up.
03/11/2015 - Press release
A new integrated computational method helps predicting adverse drug reaction—which are often lethal—more reliably than with traditional computing methods. This improved ability to foresee the possible adverse effects of drugs may entail saving many lives in the future. The study that is being conducted by researchers from IMIM (Hospital del Mar Medical Research Institute), Pompeu Fabra University, and the company Chemotargets, within the framework of the European eTOX project, was chosen for the cover of the journalChemical Research in Toxicology. Most computer tools employed today to detect possible adverse effects of compounds that are candidates for new medicines are based on detecting labile fragments in the drug's structure. These fragments can potentially transform to form reactive metabolites, which can have toxic properties. This is what is known as idiosyncratic toxicity and is a big headache for the pharmaceutical industry, as it tends to be detected in late development stages of the drug and even when it is already on the market, often causing the drug to be withdrawn.
23/10/2014 - Press release
Researchers at the Hospital del Mar have discovered one of the key mechanisms in the development and progression of mycosis fungoide, a type of cancer originating in the lymphoid cells that develops initially on the skin. The study, published in the Journal of Investigative Dermatology, was co-led by Fernando Gallardo, a dermatologist at the Hospital del Mar and a researcher in the translational research group on haematopoietic malignancies at the Hospital del Mar Medical Research Institute (IMIM); Luis Espinosa and Anna Bigas from the IMIM Cancer Stem Cells Laboratory; Juan Sandoval, researcher at the La Fe Research Institute (IISlaFe); and Ángel Diaz, researcher at the Bellvitge Biomedical Research Institute (IDIBELL). The project was conducted with a series of skin samples from patients with mycosis fungoide in tumour phase and led to the identification of the miR-200C molecule as a possible therapeutic target for designing future treatments for this disease.
Més informació "A new therapeutic target identified for the most widespread cutaneous lymphoma"
14/10/2015 - Press release
An international study led by researchers from IMIM (Hospital del Mar Medical Research Institute) published in the journal Nature Communications has revealed that the intensity or efficiency of the activation of a protein called Notch, which is involved in the different phases of embryonic development, determines the fate of cells, i.e. if cells will form the aorta artery or blood (hematopoietic) stem cells. For artery cells, many Notch molecules need to be activated, whereas for hematopoietic cells many fewer are needed. According to Dr. Anna Bigas, the coordinator of the group on stem cells and cancer at IMIM “to reach these levels of activation, we have proven that there is a competition between two proteins that activate the Notch molecule, i.e. between two ligands, in a way that one limits the activation generated by the other to form hematopoietic stem cells”. Until now it was known, thanks to the studies conducted by this same group and others, that the Notch activation was essential to form arteries and hematopoietic stem cells. It was also known that the proteins responsible for this activation were ligands Delta4 and Jagged1, respectively. With this study, researchers have shown how this signal works to reach a certain level of activation and form the two different types of cells.
Més informació "A step forward in obtaining blood stem cells in laboratory"
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