Thousands of patients in the US die every year waiting for an organ transplant, often because there are not enough human organ donors. Xenotransplantation — transplantation from another species to humans — could solve this problem, but has remained the realm of science fiction given many technical obstacles. Now, with advances in gene editing, this pipe dream is becoming reality. In today's episode of Beyond the Abstract, Dan and Derek explore xenotransplantation, tell the stories of the few...

While almost all women experience nausea and vomiting during pregnancy, few are debilitated by severe symptoms: a condition known as hyperemesis gravidarum (HG). HG has been stigmatized and neglected by the biomedical community, with limited research funding for developing effective treatments. In this episode of Beyond the Abstract, Derek and Dan tell the remarkable story of one scientist who experienced HG herself, and her decades-long journey to find a cure.  Articles discussed Her Doctor...

A new class of medicines has transformed the treatment of obesity -- Wegovy and Ozempic have become household names. While we discussed these GLP-1 medicines on an episode of Beyond the Abstract less than a year ago, the field has progressed so quickly we thought it was already time to review many of these recent developments. In today's episode, Derek and Dan first discuss improved versions of these medicines on the horizon for the treatment of obesity. Derek and Dan then talk about how...

Debates around artificial intelligence are everywhere: will ChatGPT usher in a new era of productivity and creativity? Or will advanced AI replace millions of workers? Doctors have similar questions about how AI may influence medicine. In today's episode of Beyond the Abstract, Dan and Derek take a deep dive into all things AI and health. They discuss the current role of AI in medicine and the promises and perils of potential new applications made possible because of ChatGPT and other...

It's well known that emotions can affect the heart - we've all had an anxiety-producing thought that leads to the feeling of our heart pounding out of our chest. But what about the opposite: can the heart control our emotions? In today's episode of Beyond the Abstract, Derek and Dan discuss a fascinating new study looking at whether making the heart beat fast can cause anxiety-related behaviors.   Hsueh et al., Cardiogenic control of affective behavioral state, Nature, March 2023...

The effect of inappropriate blood clotting can be devastating, including heart attack and stroke. While there are many medications to reduce the risk of clotting, our understanding of why blood clots and when remains incomplete. In today’s episode of Beyond the Abstract, Derek and Dan share the remarkable story of how a team of researchers discovered new clotting biology, in a story that begins with a surprising observation about hibernating bears and ends with the characterization of a...

Alzheimer’s disease is a devastating neurodegenerative condition affecting millions of people around the world. Current therapies are only partially effective, despite decades of research aimed at understanding the causes of the disease. Alzheimer’s is largely genetic, and the best-known genetic risk factor for Alzheimer’s comes from mutations in a gene called APOE. Until recently, however, exactly how these mutations increase risk for the disease has not been well understood. In today’s...

Approximately four in 10 Americans are obese, putting millions at increased risk of developing diabetes, heart disease, liver cancer, and other chronic illnesses. For many years it’s seemed that we’re losing the battle against this modern epidemic. However, the tide may be turning with the recent approval of a revelatory new class of medications. In today’s episode, Dan and Derek dive deep into this new type of treatments. They discuss their discovery, the biology behind them, the pivotal...

Our episode today takes us Behind The Scenes (BTS) on Beyond The Abstract (BTA). Derek and Dan answer your questions on graduate school on everything from how we chose our research topics, how we deal with imposter syndrome and stress, how it feels to have finished our PhDs, and more! We hope you enjoy this change from our usual format. If you have questions you'd like us to answer, DM us @btapod on Instagram!

This episode is sponsored by Proteintech. Exercise is good for us - it keeps off the pounds and decreases our risk for heart attack and diabetes. What may be less known about exercise is that it's actually also good for the brain. Exercise improves memory and learning, and may even improve brain function in people with Alzheimer's disease. However, it's not know how exercise might exert these beneficial effects on the brain. In today's episode, Derek and Dan discuss a paper where researchers...

Preeclampsia is a pregnancy disorder characterized by high blood pressure and contributes to significant fetal and maternal deaths. However, what exactly causes preeclampsia is unclear. It's thought that preeclampsia is caused by placental dysfunction - specifically, the ability of specialized fetal cells called trophoblasts to replace and remodel maternal blood vessels. In this episode of Beyond the Abstract, Derek and Dan discuss a new paper that describes how trophoblasts "mimic" blood...

CAR T cells have been engineered to treat everything from cancer to scarring in the heart. However, one major barrier to wide-spread therapy is the fact that T cells have to be removed from the patient, engineered, and then putting them back in the patient. But what if we could create a drug that makes CAR T cells inside a patient's own body? This type of one-size-fits-all approach could be much more efficient. On this episode of Beyond the Abstract, Derek and Dan discuss how scientists at...

COVID brain fog is a well-documented, residual symptom following COVID infection. However, how COVID infects the brain and potential causes of COVID brain fog are unclear. In this episode, Dan and Derek discuss two recent studies that show that even mild cases of COVID may have important impacts on brain structure and function. Douaud et al. SARS-CoV-2 is associated with changes in brain structure in UK Biobank. Nature, March 2022. PMID: 35255491 Fernández-Castañeda et al. Mild respiratory...

Epstein-Barr Virus (EBV) is best known for causing mononucleiosis, or the 'kissing disease,' in teenagers. Almost all adults get EBV at some point in their lives, even if they don't get mono. New research shows that EBV infection may have longer-lasting impacts. Using data from the American military, researchers now show that EBV infection drastically increases an individual's risk for multiple sclerosis, a debilitating autoimmune disorder. In this episode, Dan and Derek discuss how these...

Hair greying is thought to be an irreversible event related to life stress, but the process has never been extensively studied. For the first time, researchers at Columbia University use novel techniques with hair imaging and a daily diary to demonstrate that hair greying is not only associated with stressful life events, but that the process is reversible and correlated with metabolic changes in mitochondria. Better understanding this process may give us more information on how our bodies...

The placenta is a transient organ of pregnancy that supports fetal growth and organ development. Placental dysfunction underlies many developmental defects, but this connection is poorly understood. Furthermore, many neuropsychiatric disorders, such as autism spectrum disorder, are linked to altered brain development and are more common in men than women for unknown reasons. In this episode, Derek and Dan talk about a new paper that explores a new role for the placenta in autism spectrum...

Bone marrow stem cell transplants are some of the most important tools in treating diseases like leukemia and multiple myeloma. However, harvesting enough stem cells for transplantation is often a big issue for doctors. Finding new ways to elicit stem cell mobilization from the bone marrow to improve harvesting could go a long way in improving treatment. Today's episode of Beyond the Abstract features work by scientists who find a surprising role for pain nerves, known as nociceptive neurons,...

Multiple Sclerosis (MS) is a devastating autoimmune disease that result from the immune system attacking parts of the nervous system. For a long time, MS has been treated with broad immunosuppression using corticosteroids that puts the patient at risk for infections, but this might soon change. In today's Beyond the Abstract episode, Derek and Dan talk about a new paper that uses a novel mRNA vaccine to prevent and even treat MS, brought to you in part by BioNTech (the same company that...

High cholesterol and clogged arteries are the main cause of heart attacks. While modern medicine has developed ways to keep cholesterol down, these medications must be taken daily in order to be effective and come with their own list of side effects. This is where CRISPR comes in. Scientists have now developed a way to safely and durably reduce cholesterol in monkeys with a single injection of CRISPR gene therapy. In this episode, Dan and Derek discuss how this new therapy actually works,...

When patients have low oxygen levels, doctors use various types of breathing machines to deliver oxygen to the lungs - but it's not always effective. Now, scientists have taken inspiration from a small fish called the loach and developed a method to deliver oxygen through... the butt. This is particularly pertinent in the face of the COVID-19 pandemic, where physicians have struggled to find adequate ways to oxygenate patients in respiratory failure due to viral pneumonia. In this episode,...

Mitochondria are known as the powerhouse of the cell because of their important function in producing energy. During cell division (also known as mitosis), a cell has to duplicate everything from its DNA to proteins to organelles - including mitochondria - and distribute them equally between two cells. However, no one really knows how exactly these mitochondria get distributed. In this episode, Dan and Derek discuss a new paper from researchers at the University of Pennsylvania and Janelia...

Chimeric antigen receptor (CAR) T cell therapy has revolutionized cancer treatment by engineering our own immune cells to recognize and fight cancers that are resistant to treatments like radiation and chemotherapy. But can we use CAR T cells to treat other diseases too, like cardiac fibrosis? Cardiac fibrosis, or scarring of the heart, is common following heart attacks or prolonged hypertension. At some point, many patients require heart transplants. In this episode of Beyond the Abstract,...

Why do some diseases affect more men than women, or more women than men? Science has been unable to explain many of these sex-biased diseases until just recently. In this episode of Beyond the Abstract, Derek invites Dan Weiner, an MD/PhD student at Harvard Medical School, to talk about a recent breakthrough in neuropsychiatric and autoimmune genetics and how the key to these sex-biased differences may actually lie in our immune system. Kamitaki et al. Complement genes contribute sex-biased...

This week on Beyond the Abstract, Derek and Ellen talk about Derek's newest first-author publication in Developmental Biology. They discuss the role of myosin in Sertoli cells and how mutations can affect male fertility. More importantly, Ellen recounts a science celebrity sighting from our time working at the NIH. This article was featured as the cover article of the February 2021 issue of Developmental Biology. Sung et al. Mutations in non-muscle myosin 2A disrupt the actomyosin...