Discover, rate, and discuss biology preprints.
363,000+ bioRxiv and medRxiv preprints, including those later published in peer-reviewed journals, across 26 biological disciplines.
Recent preprints
- PhysiologybioRxivPreprintDOI 10.1101/2022.10.10.511465
- PhysiologybioRxivPreprint
Tissue-Specific and Interorgan Metabolic Reprogramming Maintains Tolerance to Sepsis
B. P. Leitner, W. D. Lee, W. Zhu…·R. J. Perry
This study identifies tissue-specific metabolic reprogramming in sepsis, showing that mitochondrial adaptations in vital organs, not global dysfunction, underlie sepsis tolerance.
DOI 10.1101/2022.10.08.511411 - PhysiologybioRxivPreprint
Sex-specific acute cerebrovascular response to photothrombotic stroke in mice requires rho-kinase
J. Raman-Nair, G. Cron, K. McLeod, B. Lacoste
This study investigates sex-specific acute cerebrovascular responses to photothrombotic stroke in mice, revealing that ROCK2 and female sex hormones mediate differences in CBF responses between sexes.
DOI 10.1101/2022.10.07.511301 - PhysiologybioRxiv
An alternative mechanism for skeletal muscle dysfunction in long-term post-viral lung disease
R. A. Martin, S. P. Keeler, K. Wu…·M. J. Holtzman
This study identifies a distinct pattern of skeletal muscle dysfunction in a mouse model of long-term post-viral lung disease caused by Sendai virus, showing reduced myofiber size without changes in myofiber type or protein synthesis/degradation markers.
DOI 10.1152/ajplung.00338.2022 - PhysiologybioRxiv
Dietary restriction of isoleucine increases healthspan and lifespan of genetically heterogeneous mice
C. L. Green, M. E. Trautman, R. Babygirija…·D. Lamming
This study shows that reducing dietary isoleucine improves metabolic health, reduces frailty, and extends lifespan in genetically diverse mice.
DOI 10.1016/j.cmet.2023.10.005 - PhysiologybioRxivPreprint
Neuronal E93 regulates metabolic homeostasis
C. Yip, S. Wyler, S. Yamazaki…·J. Elmquist
This study shows neuronal E93 in Drosophila regulates adult metabolism and circadian rhythms by acting in GABA and MIP neurons, linking metamorphosis to metabolic homeostasis.
DOI 10.1101/2022.10.06.511196 - PhysiologybioRxivPreprint
Ketone body metabolism declines with age in mice in a sex-dependent manner
B. Eap, M. Nomura, O. Panda…·J. C. Newman
This study shows that ketone body metabolism declines with age in mice, with sex-dependent differences in metabolic responses to a ketogenic diet.
DOI 10.1101/2022.10.05.511032 - PhysiologyThe Journal of PhysiologyPeer-reviewed
Motor unit dysregulation following 15 days of unilateral lower limb immobilisation
T. B. Inns, J. J. Bass, E. J. O. Hardy…·M. Piasecki
This study examines motor unit adaptations in human skeletal muscle after 15 days of unilateral limb immobilisation, finding reduced muscle strength relative to mass and changes in motor unit firing and neuromuscular junction transmission.
DOI 10.1113/jp283425 - PhysiologybioRxiv
SARS-CoV-2 infection alkalinizes the ERGIC and lysosomes through the viroporin activity of the viral envelope protein
W.-A. Want, A. Carreras Sureda, N. Demaurex
This study shows SARS-CoV-2 envelope protein alkalinizes ERGIC and lysosomes by acting as a proton channel, affecting viral replication and pathogenicity.
DOI 10.1242/jcs.260685 - PhysiologybioRxiv
The effect of elevated aestivation temperatures on the behaviour of Bogong Moths (Agrotis infusa)
R. M. Lownds, C. Turbill, T. E. White, K. D. Umbers
This study examines how elevated temperatures affect Bogong moth activity and mass during aestivation, finding increased activity at higher temperatures and greater wet mass loss.
DOI 10.1016/j.jtherbio.2023.103538 - PhysiologybioRxiv
Myosin-Binding Protein C Stabilizes, But Is Not the Sole Determinant of SRX Myosin in Cardiac Muscle
S. R. Nelson, S. Beck-Previs, S. Sadayappan…·D. Warshaw
This study investigates the role of MyBP-C in stabilizing the SRX myosin state in cardiac muscle using transgenic mice and super-resolution microscopy, finding that MyBP-C's N-terminal region is critical for maintaining SRX along the thick filament.
- PhysiologybioRxivPreprint
Distribution of intraperitoneally administered D2O in AQP4-knockout mouse brain after MCA occlusion
T. Urushihata, H. Takuwa, M. Takamashi…·T. Obata
This study uses D2O and MRI to assess how AQP4 loss affects water dynamics in the brain after focal ischemia, finding delayed signal changes in AQP4-knockout mice.
- PhysiologybioRxivPreprint
Amyloid beta 42 alters cardiac metabolism and impairs cardiac function in obesity
L. G. Hall, J. K. Czeczor, T. Connor…·S. McGee
This study shows that amyloid beta 42 from adipose tissue impairs cardiac function in obesity by affecting mitochondrial metabolism, and that neutralizing A{beta} can prevent obesity-induced cardiac dysfunction.
DOI 10.1101/2022.10.02.510555 - PhysiologyMolecular MetabolismPeer-reviewed
Nicotinamide Riboside alleviates exercise intolerance in ANT1-deficient mice.
P. M. Schaefer, J. Huang, A. Butic…·D. C. Wallace
This study shows that nicotinamide riboside improves exercise capacity in ANT1-deficient mice by increasing NAD+ levels and mitochondrial respiration.
DOI 10.1016/j.molmet.2022.101560 - PhysiologybioRxivPreprint
Dynein-mediated trafficking and degradation of nephrin in diabetic podocytopathy
H. Sun, J. Weidner, C. Allamargot…·C. Nester
This study identifies dynein-mediated trafficking and degradation of nephrin as a key mechanism in diabetic podocytopathy, showing increased dynein expression and its role in nephrin mistrafficking.
- PhysiologybioRxivPreprint
Insulin receptor substrate 4 deficiency mediates the insulin effect on the epithelial magnesium channel TRPM6 and causes hypomagnesemia
J. Zhang, S. W. An, S. Neelam…·M. T. Wolf
This paper identifies IRS4 as a novel regulator of TRPM6 channel activity and Mg2+ homeostasis, showing IRS4 mediates insulin's effect on TRPM6 phosphorylation and Mg2+ absorption.
DOI 10.1101/2022.10.01.510479 - PhysiologybioRxiv
Spatial summation of pain is associated with pain expectations: Results from a home-based paradigm
J. Nastaj, J. Skalski, A. Budzisz…·W. M. Adamczyk
This study reproduces spatial summation of pain using home-based procedures and finds a link between pain expectations and spatial summation.
DOI 10.1371/journal.pone.0297067 - PhysiologybioRxivPreprint
Kleptocytosis: Comparative Proteomics and Functional Imaging Show Varroa destructor Co-opts Intact Host Proteins for Rapid Development and Reproduction
L. N. Taylor, J. D. Hein, D. Sonenshine…·S. D. Ramsey
This paper shows Varroa destructor steals intact host proteins for rapid development and reproduction, describing this as 'kleptocytosis'.
DOI 10.1101/2022.09.30.509900 - PhysiologybioRxivPreprint
Validity of Optical Heart Rate Measurement in Commercially Available Wearable Fitness Tracking Devices
This study evaluates the accuracy of optical heart rate measurement in three wearable devices under different conditions, finding they meet ANSI/CTA standards for physical activity monitoring.
DOI 10.1101/2022.09.29.510075 - PhysiologybioRxiv
Cardiac MAO-A inhibition protects against catecholamine-induced ventricular arrhythmias via enhanced diastolic calcium control
Q. Shi, H. Malik, J. Streeter…·E. J. Anderson
This study shows that inhibiting MAO-A in cardiomyocytes reduces arrhythmias by improving diastolic calcium control following catecholamine stress.
DOI 10.1093/cvr/cvae012