12/08/2020Enzymes used by bacteria to break down mucus in the gut could provide a useful biomarker for intestinal diseases, according to new research published in Nature Communications. Researchers at the University of Birmingham and Newcastle University have successfully identified and characterised one of the key enzymes involved in this process.
11/08/2020Although macrophages are classified as immune cells functioning in the activation and resolution of tissue inflammation, it is now clear that they are critically involved in a variety of disease processes, such as chronic inflammatory diseases, tumor growth and metastasis and tissue fibrosis.
10/08/2020An international consortium succeeded in tracking the genesis and spread of new reassortants of avian influenza viruses by the use of mathematical analyses. This large-scale international study has now been published in the scientific journal PNAS (Proceedings of the National Academy of Sciences of the United States of America).
07/08/2020A new blood test demonstrated remarkable promise in discriminating between persons with and without Alzheimer's disease and in persons at known genetic risk may be able to detect the disease as early as 20 years before the onset of cognitive impairment, according to a large international study published in Journal of the American Medical Association (JAMA).
05/08/2020Researchers at the University of Maryland School of Medicine (UMSOM) have for the first time identified stem cells in the region of the optic nerve, which transmits signals from the eye to the brain.
04/08/2020Scientists in the Multiscale Bioimaging Cluster of Excellence have succeeded for the first time in simultaneously displaying the motion profiles of a large number of proteins in the synapse. Published in The EMBO Journal.
04/08/2020When we get a wound on our skin, the cells in our bodies quickly mobilize to repair it. While it has been known how cells heal wounds and how scars form, a team led by researchers from Washington University in St. Louis has determined for the first time how the process begins, which may provide new insight into wound healing, fibrosis and cancer metastasis.
03/08/2020Florida State University Professor of Biological Science David Gilbert is using the latest information about the human genome as a guide to better understand cancer.
31/07/2020To determine immunity to Sars-Cov-2 and the effectiveness of potential vaccines, the amount of neutralising antibodies in the blood of recovered or vaccinated individuals must be determined. A traditional neutralisation test usually takes two to three days and must be carried out with infectious coronaviruses in a laboratory complying to biosafety level 3.
30/07/2020The scientists who developed the first 3D multicellular brain organoid with a functional blood brain barrier now report that the model could be a promising platform to screen drugs that could work to control inflammation, which is at the center of many neurological conditions, like ischemic stroke.
27/07/2020Cancer diagnosis requires a lengthy process of multiple analyses of tissue biopsies, impeding the quick and early detection of cancers. In a new study, researchers from Osaka University developed a novel imaging system that uses near-infrared light to be less invasive and more time efficient than the conventional approach.
24/07/2020Osteosarcoma (OS) is the most common form of aggressive bone cancer. A MedUni Vienna study, led by geneticist Erwin Wagner, has uncovered new insights into the disease mechanisms of OS, paving the way for potential new diagnostic and treatment strategies for fighting the bone disease. The study has just been published in the high impact journal Cell Research.
06/07/2020Researchers have developed a human cell 'membrane on a chip' that allows continuous monitoring of how drugs and infectious agents interact with our cells, and may soon be used to test potential drug candidates for COVID-19.
03/07/2020Biophysicists from the Moscow Institute of Physics and Technology and their colleagues have proposed a simple way to observe the heart tissue. Besides being relatively uncomplicated, the new method is cheaper and produces results that are more independent, compared with the analogues currently in use. The study came out in Annals of Biomedical Engineering.
03/07/2020A new study shows that SARS-CoV-2, the virus that causes COVID-19, can infect heart cells in a lab dish, indicating it may be possible for heart cells in COVID-19 patients to be directly infected by the virus. The discovery, published today in the journal Cell Reports Medicine, was made using heart muscle cells that were produced by stem cell technology.
02/07/2020A multidisciplinary team from two Johns Hopkins University institutions, including neurotoxicologists and virologists from the Bloomberg School of Public Health and infectious disease specialists from the school of medicine, has found that organoids known as "mini-brains" can be infected by the SARS-CoV-2 virus that causes COVID-19.
29/06/2020COVID-19 screening can soon be conducted directly at various testing stations, and patients can get their test results in about an hour from the time they get a nasal swab. A team of researchers from the National University of Singapore (NUS) has developed a portable COVID-19 micro-PCR diagnostic system that enables rapid and accurate on-site screening of infectious diseases.
16/06/2020A team of investigators at the Medical University of South Carolina (MUSC) and Clemson University recently reported in an article in Nature Biomedical Engineering that they have developed human cardiac organoids less than 1 millimeter in diameter that closely resemble the physiological conditions that occur during a heart attack.
12/06/2020Biological tissues have evolved over millennia to be perfectly optimized for their specific functions. Take cartilage as an example. It's a compliant, elastic tissue that's soft enough to cushion joints, but strong enough to resist compression and withstand the substantial load bearing of our bodies: key for running, jumping, and our daily wear and tear.
10/06/2020Mesenchymal stem cells (MSCs) are multipotent in that they naturally replenish the cell types that build our bone, cartilage and adipose tissues. However, their much broader regenerative potential, based on their capacity to migrate and engraft in injured tissues, makes them exquisite candidates for cell-based therapies for diseases.
05/06/2020The drug nimodipine could prevent nerve cells from dying after brain surgery. Pharmacists at Martin Luther University Halle-Wittenberg (MLU), in cooperation with neurosurgeons at University Hospital Halle (Saale) (UKH), have developed a new method that enables the drug to be administered directly in the brain with fewer side effects.
01/06/2020Breast cancer is the most common cancer in women. But individual tumors can vary significantly, presenting different spatial patterns within their mass. Researchers at the Technical University of Munich (TUM) and Helmholtz Zentrum München have now succeeded in visualizing spatial changes within tumors by means of optoacoustics. This method may be helpful for the future development of new drugs.
20/05/2020Dr. Akhilesh K. Gaharwar, associate professor, has developed a highly printable bioink as a platform to generate anatomical-scale functional tissues. This study was recently published in the American Chemical Society's Applied Materials and Interfaces.
18/05/2020Researchers at the University of Eastern Finland have developed a new and promising drug compound for the treatment of cancer that inhibits natural amino acids from entering cancer cells. Since amino acids are essential for the growth and division of cancer cells, the new LAT1 inhibitor makes it possible to inhibit their growth. The study was published in the journal Apoptosis.
18/05/2020For the past 70 years, the best indicator of life expectancy for a patient with glioblastoma (GBM) has simply been age at diagnosis. Now, an international team of scientists has experimentally validated a predictor that is not only more accurate but also more clinically relevant: a pattern of co-occurring changes in DNA abundance levels.
03/02/2020Severe wounds heal slowly and leave scars. This is why we have been using regenerative therapies for some time now to accelerate and improve healing. They also help to avoid permanent damage. Still, complex applications like replacing organs or limbs will rather remain vision than become reality for a long time.
03/02/2020Regenerative medicine aims to replace damage in the body with functional tissue and restore normal function. The first defense for large defects are implants made of hydrogels, designed to promote cell growth. They need their own blood supply, which is a problem when it comes to larger implants because you cannot regulate where and how the blood vessels grow - until now.
08/10/2019The healthcare market offers a multitude of microscopes that make cells visible to the human eye. The same applies to AI-based software for image analysis. After taking the microscopic images, scientist are faced with large volumes of scans with usually low resolution. Yet when all aspects merge together, they open up a the world of digital pathology.
01/02/2019In vitro processes and animal tests are used to develop new medications and novel therapeutic approaches. However, animal testing raises important ethical concerns. Organ-on-a-chip models promise to be a feasible alternative. In a system the size of a smartphone, organs are connected using artificial circulation.
01/02/2019The liver, nervous tissue or the intestines: all are important human organs that have in the past been tested for their function and compatibility using animal or in vitro test methods. In recent years, TissUse GmbH, a spin-off of the Technical University of Berlin (TU Berlin), has launched multi-organ chip platforms. But that’s not all.
01/02/2019Organ-on-a-chip systems are technically a great enhancement of medical research because they facilitate testing of active ingredients on cell cultures in the chambers of a plastic chip. This replaces animal testing and improves patient safety. That being said, they are not a true-to-life replication of the human body and can only simulate a few functions and activities.
21/11/2018Our blood reveals a lot about our physical health. The shape of our blood cells sheds light on several hereditary diseases for example. For a diagnosis, the cells must first be examined under the microscope and categorized into a specific cell class. We met with Dr. Stephan Quint and Alexander Kihm of the Institute of Physics at the Saarland University, who explained how this classification works.
09/07/2018People who are not ill and do not show any symptoms typically do not visit the doctor. And while most people know that preventive medical checkups for cancer, for example, are important, they still avoid them. They tend to be very hesitant because the doctor might detect a serious illness. In the future, a new type of implant could make it easier to go to a screening test.
22/06/2018A drop of blood provides a lot of valuable information. However, it takes several hours to analyze the blood of a patient and make a diagnosis. This takes away a lot of time that's crucial for treatment. A new method intends to considerably speed up this process by testing the cells in the blood in terms of their deformability and immune response.
23/04/2018A bypass is a complicated structure. It is either made of synthetic materials that can cause blood clots and infections or created by using the patient’s veins. However, the latter often does not yield adequate material. A newly developed bioreactor could solve this problem in the future. It is designed to tissue engineer vascular grafts by using the body’s own material.
01/03/2018Everyone is different. This statement also applies to our health. Cancer, in particular, can look and progress differently depending on the individual person. That’s why every patient ideally also needs a customized treatment that is tailored to their individual needs. But how feasible is this idea?
22/02/2018Here on Earth, all experiments are bound by gravitation. Yet, freed from gravity's grip, tumor cells, for example, behave in an entirely different way. As part of the "Thyroid Cancer Cells in Space" project by the University of Magdeburg, smartphone-sized containers carrying poorly differentiated thyroid cancer cells are sent into space.
08/01/2018Few patients with heart failure are fortunate enough to receive a donor's heart. Ventricular assist devices (or heart pumps) have been around for several years and are designed to buy time as patients wait for a transplant. Unfortunately, the body doesn't always tolerate these devices.