Subject(s)
Cardiology , Humans , Cardiology/history , Cardiology/trends , Nuclear Medicine/history , Nuclear Medicine/trends , History, 21st Century , Forecasting , History, 20th Century , Cardiovascular Diseases/diagnostic imaging , Cardiovascular Diseases/therapy , Predictive Value of Tests , Myocardial Perfusion Imaging/methodsABSTRACT
Maternal immune activation can affect the development of embryos, but the underlying mechanisms have been unclear. In a new study, Bridget Ostrem and colleagues show that embryonic microglia detect maternal inflammation, resulting in transcriptional changes in neighbouring brain-cell types. To find out more about the behind the paper story, we caught up with the first authors, Bridget Ostrem and Nuria Domínguez-Iturza, and corresponding author Paola Arlotta, Chair of the Department of Stem Cell and Regenerative Biology at Harvard University, USA.
Subject(s)
Microglia , Humans , Animals , History, 21st Century , History, 20th Century , Microglia/metabolism , Female , Developmental Biology/historyABSTRACT
During development, the gastrointestinal tract undergoes patterning along its anterior-posterior axis to define regions with distinct organs and functions. A new paper in Development derives human intestinal organoids from an individual with duodenal defects and a compound heterozygous variant in the gene encoding the transcription factor RFX6. By studying these organoids, the authors identify novel roles for RFX6 in intestinal patterning. To learn more about the story behind the paper, we caught up with first author J. Guillermo Sanchez and corresponding author Jim Wells, an endowed professor in the Division of Developmental Biology at Cincinnati Children's Hospital, USA, where he is also the Director for Basic Research in the Division of Endocrinology.
Subject(s)
Developmental Biology , Humans , History, 21st Century , History, 20th Century , Developmental Biology/history , Regulatory Factor X Transcription Factors/genetics , Regulatory Factor X Transcription Factors/metabolism , Organoids/metabolism , Body Patterning/geneticsABSTRACT
Planarians grow when they are fed and shrink during periods of starvation. However, it is unclear how they maintain appropriate body proportions as their size changes. A new paper in Development investigates the differences between growth and shrinkage dynamics and builds a mathematical model to explore the mechanisms underpinning these two processes. To learn more about the story behind the paper, we caught up with first author, Jason Ko, and corresponding author, Daniel Lobo, Associate Professor at the University of Maryland.
Subject(s)
Planarians , Animals , Humans , Developmental Biology/history , History, 21st CenturyABSTRACT
Bez is a Class B scavenger receptor in Drosophila that is yet to be characterised. In a new study, Margret Bülow and colleagues uncover a role for Bez in mobilising lipids from Drosophila adipocytes into the ovary for oocyte maturation. To find out more about the people behind the paper, we caught up with first author, Pilar Carrera, and corresponding author, Margret Bülow, Group Leader at the University of Bonn.
Subject(s)
Drosophila Proteins , Animals , Drosophila Proteins/metabolism , Drosophila Proteins/genetics , Female , Drosophila , History, 21st Century , Humans , Adipocytes/cytology , Adipocytes/metabolism , History, 20th Century , Developmental Biology/history , Oocytes/metabolism , Oocytes/cytology , Drosophila melanogaster , Ovary/metabolism , Ovary/cytologySubject(s)
Veterinary Medicine , Animals , History, 20th Century , Periodicals as Topic , History, 21st CenturyABSTRACT
In this talk with Neuron, Christof Koch, a physicist and neuroscientist, advocates for a pragmatic program to track the footprints of consciousness in the brain and for team science, explains the recent pseudo-controversy regarding integrated information theory of consciousness, and speaks about the joy of exploring the mysteries around us.
Subject(s)
Consciousness , Neurosciences , Humans , Consciousness/physiology , History, 20th Century , Brain/physiology , History, 21st CenturyABSTRACT
Stanislas Dehaene is a cognitive neuroscientist elucidating the biological mechanisms that give rise to human perception and cognition. In a conversation with Neuron, he talks about his ongoing interest in consciousness research, the role of theory in neuroscience, and his current work on education and the science of learning.
Subject(s)
Consciousness , Humans , History, 21st Century , Consciousness/physiology , History, 20th Century , Neurosciences/history , Learning/physiology , Cognitive Neuroscience/historyABSTRACT
Burnout, historically the successor to neurasthenia, is considered an exhaustion phenomenon caused by prolonged work-related stress. The very concept of "being burned out" implies an image that is immediately understandable and concise to any layperson. Academic psychiatry and psychology pose conceptual challenges to this popular model, which was first published in 1974 by the German-American psychotherapist Herbert Freudenberger. To date, more than 140 definitions of burnout have been proposed. All of the main features of burnout, especially the experience of exhaustion, are non-specific. Various burnout development models have been proposed, which were assumed to represent a quasi-natural process. None could be confirmed empirically. An expert consensus on the diagnostic criteria and conceptual classification, whether as an independent disorder or as a risk condition, could not be achieved. Nevertheless, burnout is classified as a work-related disorder in the ICD-11. Current findings indicate that the experience of burnout among members of the baby boomer generation often reflects their high performance expectations of themselves, while the identical subjective feeling in Generation Z is often associated with missing or unsustainable professional goals. The research on the burnout phenomenon, which largely ignores the fact that burnout - in the absence of reliable diagnostic criteria - must be considered a subjective model, meets social expectations but does not meet scientific criteria. A parallel recording of ICD/DSM diagnoses and subjective disorder models is recommended in everyday therapeutic practice in order to meet the needs of both sides.
Subject(s)
Burnout, Professional , Humans , Burnout, Professional/psychology , Burnout, Professional/diagnosis , History, 20th Century , Burnout, Psychological/psychology , History, 21st CenturyABSTRACT
Collective migration of caudal visceral mesoderm (CVM) cells in Drosophila embryos helps form the longitudinal muscles of the larval gut. In their study, Angelike Stathopoulos and colleagues reveal that cell division coordinates two gene expression programmes in migrating CVM cells. To know more about their work, we spoke to the first author, Jingjing Sun, and the corresponding author, Angelike Stathopoulos, Professor in the Division of Biology at the California Institute of Technology, USA.
Subject(s)
Developmental Biology , Animals , Developmental Biology/history , History, 20th Century , History, 21st Century , Mesoderm/metabolism , Drosophila/embryology , Cell Movement , HumansABSTRACT
Initially a practitioner, he later joined the Meat Hygiene Service inspecting and approving slaughterhouses. After retirement he was ordained in the Church of Scotland and served remote island communities.
Subject(s)
Veterinary Medicine , History, 20th Century , Scotland , History, 21st Century , Veterinary Medicine/history , Abattoirs/legislation & jurisprudence , Humans , United Kingdom , Animals , Veterinarians/historyABSTRACT
An outstanding Tanzanian scientist in the field of veterinary epidemiology and One Health research.
Subject(s)
Veterinary Medicine , Tanzania , Veterinary Medicine/history , History, 21st Century , History, 20th Century , Humans , One Health , Animals , Awards and PrizesSubject(s)
Dermatology , Dermatology/history , Humans , Periodicals as Topic/history , History, 21st CenturySubject(s)
Midwifery , Humans , United States , History, 20th Century , Midwifery/history , History, 21st Century , Female , Pregnancy , History, 19th Century , Nurse's RoleABSTRACT
The year 2024 marks the centennial of the initiation of the American Heart Association. Over the past 100 years, the American Heart Association has led groundbreaking discoveries in cardiovascular disease including salt sensitivity of blood pressure, which has been studied since the mid-1900s. Salt sensitivity of blood pressure is an important risk factor for cardiovascular events, but the phenotype remains unclear because of insufficient understanding of the underlying mechanisms and lack of feasible diagnostic tools. In honor of this centennial, we commemorate the initial discovery of salt sensitivity of blood pressure and chronicle the subsequent scientific discoveries and efforts to mitigate salt-induced cardiovascular disease with American Heart Association leading the way. We also highlight determinants of the pathophysiology of salt sensitivity of blood pressure in humans and recent developments in diagnostic methods and future prospects.
Subject(s)
Blood Pressure , Hypertension , Sodium Chloride, Dietary , Animals , Humans , American Heart Association/history , Blood Pressure/drug effects , Cardiovascular Diseases/physiopathology , Cardiovascular Diseases/etiology , Hypertension/etiology , Hypertension/history , Hypertension/physiopathology , Sodium Chloride, Dietary/adverse effects , Sodium Chloride, Dietary/history , United States/epidemiology , History, 20th Century , History, 21st CenturySubject(s)
Awards and Prizes , Dermatology , Humans , Dermatology/history , Germany , History, 21st CenturyABSTRACT
In a recent survey of 16,694 people receiving treatment for Restless Legs Syndrome (RLS), approximately 25% were treated with benzodiazepines either singly or in combination with other RLS treatments. Because of the large number of people receiving benzodiazepines for treatment of RLS, we conducted a historical overview of the therapeutic role of benzodiazepines in RLS and its associated condition Periodic Limb Movements in Sleep (PLMS). We found 17 articles on the use of clonazepam in RLS, PLMS, or both, 3 on triazolam and PLMS, 1 on alprazolam and RLS, 1 on temazepam and PLMS, and 1 on nitrazepam and PLMS. The order of benefit of benzodiazepines from the summarized literature is Sleep>RLS>PLMS and arousals > PLMS. Most of the studies on clonazepam employed dosages of 0.5-2.0 mg. Dosages of 3 or 4 mg caused lethargy, somnolence and confusion. An epidemiological study on the therapy of RLS suggests that treatment of RLS with most types of RLS medications including benzodiazepines in combination with other RLS therapies lowers the future cardiovascular risk associated with RLS. The major effect of benzodiazepines is through potentiation of the effect of GABA on the GABA A receptor. Neuroimaging studies suggest that GABA is altered either positively or negatively in various brain regions in RLS and genetic studies suggest that there are alterations in the GABA receptor in RLS. These results suggest that medications with different GABAergic mechanisms such as tiagabine (Gabitril) or others should be investigated in RLS for their possible therapeutic benefit. Highlights: Benzodiazepines are frequently used as therapy in Restless Legs Syndrome (RLS) and Periodic Limb Movements in Sleep. The order of benefit is Sleep>RLS>PLMS and arousals > PLMS. For clonazepam dosages of 0.5 mg-2.0 mg/day are most frequently employed. Benzodiazepines exert their therapeutic effect through GABA-ergic mechanisms.