#pigmentation — Public Fediverse posts

💁🏻‍♀️ TIL: 🐔🎨 A single MC1R gene acts as a molecular dimmer for feather color, and researchers found 18 variants that combine to create #chickens’ #rainbow of #plumage.

By reading the #genomes of over 10,000 #birds, they traced how these mutations accumulated since #domestication.

👉 https://phys.org/news/2026-06-chickens-gene-reveals-evolution.html

#genetics #evolution #pigmentation #biology #science #dna #leipzig #uppsala #berlin #agriculture #animals #ornithology

🧬 **Inference of human pigmentation from ancient DNA by genotype likelihoods**

"_We showed that the Neolithic diffusion of early farmers introduced lighter phenotypes, but for millennia, pigmentation diversity remained extensive, so that many Europeans kept the dark skins of their African ancestors well within the Bronze and Iron ages_"

S. Perretti, P. Santos, M.T. Vizzari, E. Tassani, A. Benazzo, S. Ghirotto, & G. Barbujani, Inference of human pigmentation from ancient DNA by genotype likelihoods, Proc. Natl. Acad. Sci. U.S.A. 122 (29) e2502158122, https://doi.org/10.1073/pnas.2502158122 (2025).

#OpenAccess #OA #Research #Article #Science #Ancient #DNA #Phenotype #Pigmentation #Europe

Iris #Pigmentation Irregularities Following An Avian #Influenza #Outbreak: Implications For Disease #Surveillance & Population Monitoring in a Colonial #Seabird, https://etidiohnew.blogspot.com/2025/11/iris-pigmentation-irregularities.html

24-Oct-2025
#Moth #melanism: From British soot to China’s tea gardens

https://www.eurekalert.org/news-releases/1103271

#science #mimicry #pigmentation #lepidoptera #ecology

DATE: January 08, 2025 at 07:00AM
SOURCE: BioWorld MedTech

Direct article link at end of text block below.

FDA forcing industry’s hand on pulse-ox sensitivity to pigmentation

https://t.co/3kQl7cUWDX

#medtech @FDADeviceInfo @US_FDA #pulseox #pigmentation

Here are any URLs found in the article text:

https://t.co/3kQl7cUWDX

#medtech

Articles can be found by scrolling down the page at https://www.bioworld.com/topics/85-bioworld-medtech .

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#healthcare #healthtech #healthcaretech #healthtechnology #medgadget #medicine #doctor #hospital #medtech

DATE: January 07, 2025 at 05:00PM
SOURCE: BioWorld MedTech

Direct article link at end of text block below.

FDA forcing industry’s hand on pulse-ox sensitivity to pigmentation

https://t.co/3kQl7cUWDX

#medtech @FDADeviceInfo @US_FDA #pulseox #pigmentation

Here are any URLs found in the article text:

https://t.co/3kQl7cUWDX

#medtech

Articles can be found by scrolling down the page at https://www.bioworld.com/topics/85-bioworld-medtech .

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Private, vetted email list for mental health professionals: https://www.clinicians-exchange.org
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NYU Information for Practice puts out 400-500 good quality health-related research posts per week but its too much for many people, so that bot is limited to just subscribers. You can read it or subscribe at @PsychResearchBot
.
Since 1991 The National Psychologist has focused on keeping practicing psychologists current with news, information and items of interest. Check them out for more free articles, resources, and subscription information: https://www.nationalpsychologist.com
.
EMAIL DAILY DIGEST OF RSS FEEDS -- SUBSCRIBE:
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#healthcare #healthtech #healthcaretech #healthtechnology #medgadget #medicine #doctor #hospital #medtech

The color difference between magenta and white flowers in Digitalis purpurea is linked to a large insertion in the DFR gene of white flowering plants, likely making DFR non-functional and blocking anthocyanin biosynthesis:
https://doi.org/10.1101/2024.02.14.580303
#PlantSci #Pigmentation
@PuckerLab

#Mitochondrial calcium signaling in #pigmentation: @jyotitanwar1993 @MotianiRaj1 &co show that mito Ca2+ uniporter MCU regulates #melanogenesis by activating NFAT2 & Keratin 5; targeting this axis could be used to treat pigmentary disorders #PLOSBiology https://plos.io/4eswpbV

#UVradiation triggers a #pigmentation response in our skin. @AggarwalAyush_ @PigmentCellBio &co identify distinct #melanocyte sub-pops with maturation & proliferation programs initiated by stochastic gene expression in response to cues like UV #PLOSBiology https://plos.io/4fNb3rz

#Parrot #plumage study aids breeders and endangered natural populations https://genestogenomes.org/parrot-plumage-study-aids-breeders-and-endangered-natural-populations/

Mutations in SLC45A2 lead to loss of #melanin in parrot #feathers https://academic.oup.com/g3journal/article/14/2/jkad254/7379049

"Blue and yellow #pigmentation combine to create the green hue—which blends well with the tree #canopy—most commonly seen in wild parrots. In contrast, yellow alone is a popular color for captive-bred #birds. New study investigates the molecular basis of yellow color variations in three species of #parrots."

Human skin's sensory neurons produce a protein called RGMB that stimulates the cells responsible for skin colour. This could lead to new treatments for pigmentation disorders. A novel sequencing technique was also used to study gene expression and function in taste cells. #skin #sensoryneurons #pigmentation https://www.sciencedaily.com/releases/2022/09/220920115545.htm

Catch the latest episode of #TheStoryofUs with Dr. Nina Jablonski, one of the most prestigious #anthropologists in the world, and learn about her #story and her life work. Learn about #skin #pigmentation and #Human #Diversity https://worldofpaleoanthropology.org/2023/04/12/skin-pigmentation-old-world-monkeys-and-more-with-dr-nina-jablonski/

#NewSpecies of #Fish Has Mysterious Horn-Like Structure on the Back of Its Head https://www.sci.news/biology/sinocyclocheilus-longicornus-11592.html Paper: https://zookeys.pensoft.net/article/91501/

#Sinocyclocheilus longicornus inhabits a completely dark #cave. It has a scaleless, #albinotic body without #pigmentation, and small, degenerated #eyes. It also has a single, relatively long, unforked horn-like structure on the back of the head.

At the @ifpcs we have updated the list of genes directly or indirectly involved in the control of #pigmentation From 662 to 688, 26 new #ColorGenes recently reported by various colleagues in the field. Getting close to 700 genes, ~3% of the genome🧬
https://www.ifpcs.org/colorgenes/

I will toot also in English on:
#genetics
#genomediting
#CRISPR
#genome
#geneexpression
#development
#embryo
#animalmodels
#RareDisease
#albinism
#retina
#vision
#pigmentation
#melanin
#geneticdiagnose
#ethics
#bioethics
#researchintegrity
#scientificpublication
#education
#popularscience
#sciencepolicy
#evaluation
#researchmanagement
#mentoring
#integration
#solidarity
#patients