Category Biology/Biotechnology

Having High Cholesterol and Reduced Physical Stamina and being Overweight are Long COVID Sequelae in Young Adults

Having high cholesterol and reduced physical stamina and being overweight are long COVID sequelae in young adults
Test battery used in the Long COVID in Military Organizations study. The test battery was used to evaluate the long-term sequelae of COVID-19 in young adults. A variety of quantitative tests and standardized questionnaires were used to measure the effect on various organ systems and parameters in participants following COVID-19, asymptomatic SARS-CoV-2 infection, or in individuals who were non-exposed to SARS-CoV-2. Anti-N=anti-SARS-CoV-2 nucleocapsid. Anti-S=anti-SARS-CoV-2 spike. BDI-13=Beck Depression Inventory (13 items). CFQ-11=Chalder Fatigue Scale. eGFR=estimated glomerular filtration rate. FeNO=fractional exhaled nitric oxide. FSH=follicle stimulating hormone. HbA1c=glycated hemoglobin. IES-R=Impact of Event Scale-Revised. LH=luteinising hormone...
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Scientists Discover New Kind of Synapse in Neurons’ Tiny Hairs

20220901_synapse_illustrated450.png
This graphic shows a model of the serotonergic axo-ciliary synapse. The serotonergic axon comes from the brainstem (blue) and contacts the primary cilia (yellow). Cilia-specific serotonin receptors constitute a distinct signaling pathway to the nucleus. Activation of this pathway modulates nuclear actin, increases histone acetylation and chromatin accessibility. Credit: Sheu et al./Cell

Scientists at HHMI’s Janelia Research Campus have discovered a new kind of synapse in the tiny hairs on the surface of neurons.

The commonly overlooked protrusions called primary cilia contain special junctions that act as a shortcut for sending signals quickly and directly to the cell’s nucleus, inducing changes to the cell’s chromatin that forms chromosomes.

“This special synapse represents a wa...

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Old Drugs Hint at New Ways to Beat Chronic Pain

Visualizing pain in mouse sensory neurons. Mouse sensory neurons are shown in magenta. BH4, the molecule driving chronic pain, is shown in green. Hence, the neurons “in pain” are seen in green/white. ©Cronin/IMBA

A newly identified link between chronic pain and lung cancer in mice offers hope for pain management. A new study points to possible new treatments for chronic pain with a surprising link to lung cancer. Findings of the research, conducted in laboratory mouse models, open up multiple therapeutic opportunities that could allow the world to improve chronic pain management and eclipse the opioid epidemic.

Pain is an important alarm system that alerts us to tissue damage and prompts us to withdraw from harmful situations...

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Researchers uncover Where and Why Proteins Malfunction in Parkinson’s disease

Super resolution image of α-synuclein in mitochondria of neuron (left) and single molecule TIRF image of individual α-synuclein aggregates (right)
Super resolution image of α-synuclein in mitochondria of neuron (left) and single molecule TIRF image of individual α-synuclein aggregates (right).
– Mathew Horrocks

Scientists at the Francis Crick Institute, UCL and the University of Edinburgh have uncovered how a build-up of harmful protein starts to happen within neurons in Parkinson’s disease, ultimately causing nerve cell death. By looking at how, where and why this build-up happens, the work provides unique insight into a key biological process driving Parkinson’s.

Parkinson’s is a progressive neurodegenerative disease that causes tremors, slowing of movements, stiffness and can progress to cause severe cognitive problems...

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