Trending

#Histamine

Latest posts tagged with #Histamine on Bluesky

Latest Top
Trending

Posts tagged #Histamine

Long Covid + Histamine / MCAS - Dr Tina Peers in conversation with journalist Nicola Haseler
Long Covid + Histamine / MCAS - Dr Tina Peers in conversation with journalist Nicola Haseler YouTube video by nicola haseler

Long Covid + Histamine / MCAS (Mast Cell Activation Syndrome)

Dr Tina Peers in conversation with journalist Nicola Haseler

youtube.com/watch?v=vr2b...

YouTube, nicola haseler 10/16/2020

#LongCovid #MCAS #Histamine

4 2 0 0

I’m exhausted. My body is flaring. I’m fighting #histamine reactions and headaches, and I haven’t been able to rest because I’m afraid of not waking up in time to keep raising what we need.

No one should have to perform their pain to sleep indoors.

0 0 1 0
Post image

Immune System Response:

• A food allergy is an immune system response to a food the body mistakenly believes is harmful.

Visit #FAACT to learn more:
www.foodallergyawareness.org/food-allergy...

#FoodAllergy #Allergy #ImmuneSystem #Histamine #KnowTheFAACTs #ShareTheFAACTs #LearnTheFAACTs

1 1 0 0
Preview
Everything you need to know about histamine - and how to handle it! Learn what histamine is, how it impacts your body and gut, why histamine intolerance happens, and practical ways to rebalance naturally.

Useful information.

#Histamine #HolisticHealth 💕 #Wellness

1 0 0 0
Post image

Some tips and tricks that helped me in my MCAS journey! #mcas #histamine

5 1 0 0

It is so weird to my brain that I can't eat certain foods that it's easy to gaslight myself into thinking I can.

After I feel great for weeks sometimes I sneak outrageous things into my diet over a few days. i.e half a strawberry, a few cashews, a banana.

Regret. Every time.

#mcas #histamine

0 0 0 0
Preview
FSA reports improved results from imported product sampling There has been a sharp decline in the number of positive samples found as part of a program targeting imported products, according to the Food Standards Agency (FSA). Results are from sampling products of animal origin (POAO) at UK Border Inspection Posts (BCPs), under the National Monitoring Plan, between April
0 0 0 0
Preview
What are high-histamine foods? Think histamine is just about allergy? Think again. We take a look at what histamine is and how the food we eat may affect our histamine levels

“It’s not just food that can add to your #histamine load, #chemicals and #additives found in #cosmetic, beauty and #household products like deodorants, perfumes, shampoos, sunscreen and make-up may also be contributors.": buff.ly/gZkb3OE

from BBCgoodfood

5 2 1 0
Preview
What are high-histamine foods? Think histamine is just about allergy? Think again. We take a look at what histamine is and how the food we eat may affect our histamine levels

“some #histamine -producing #bacteria are..anaerobic, so vacuum-packing doesn’t inhibit them and higher levels of histamine are typically seen in leftover and out-of-date food.": buff.ly/pWItzIM

from BBCGoodFood
#leftovers #HealthyEating #Chronicillness #MastCells

8 1 1 0
Preview
Fish group welcomes revised tuna rules A group representing the fish sector in Europe has welcomed regulation on tuna frozen in brine. Europêche said the legislation recognizes the high sanitary and technological standards already applied by the European tropical tuna purse seine fleet. The rules, which come into force beginning Jan. 27, 2026, align market-access conditions... Continue Reading
0 0 0 0
 Histamine modulates early visual processing in awake mice. Top left: Visual responses were recorded in awake, head-fixed mice using single-unit extracellular recordings from retinal ganglion cell (RGC) axons in the optic tract and from dorsal lateral geniculate nucleus (dLGN) neurons, while pupil dynamics and locomotion were monitored. Top right: Tripodi and Asari manipulated histaminergic input to the retina by chemogenetic activation of hypothalamic tuberomammillary nucleus (TMN) neurons or by systemic pharmacology targeting histamine receptors. H3 receptor antagonists increase histamine release, whereas H1 receptor antagonists block postsynaptic histamine effects. Bottom left: Increasing histamine levels, either chemogenetically or pharmacologically, slowed and weakened visual responses in both RGC axons and dLGN neurons, whereas blocking H1 receptors had the opposite effect, consistent with H1 receptor-mediated gain modulation. Bottom right: Ethological implication: in nocturnal mice, histamine levels are low during daytime, when the animals rest, enabling faster and stronger retinal responses and potentially facilitating rapid detection of threats. At nighttime, when the animals are active, high histamine levels suppress and slow visual responses. Partly created with biorender.com.

Histamine modulates early visual processing in awake mice. Top left: Visual responses were recorded in awake, head-fixed mice using single-unit extracellular recordings from retinal ganglion cell (RGC) axons in the optic tract and from dorsal lateral geniculate nucleus (dLGN) neurons, while pupil dynamics and locomotion were monitored. Top right: Tripodi and Asari manipulated histaminergic input to the retina by chemogenetic activation of hypothalamic tuberomammillary nucleus (TMN) neurons or by systemic pharmacology targeting histamine receptors. H3 receptor antagonists increase histamine release, whereas H1 receptor antagonists block postsynaptic histamine effects. Bottom left: Increasing histamine levels, either chemogenetically or pharmacologically, slowed and weakened visual responses in both RGC axons and dLGN neurons, whereas blocking H1 receptors had the opposite effect, consistent with H1 receptor-mediated gain modulation. Bottom right: Ethological implication: in nocturnal mice, histamine levels are low during daytime, when the animals rest, enabling faster and stronger retinal responses and potentially facilitating rapid detection of threats. At nighttime, when the animals are active, high histamine levels suppress and slow visual responses. Partly created with biorender.com.

The state of our brain shapes what we see. @dgonschorek.bsky.social & @teuler.bsky.social explore a @plosbiology.org study showing that #brain state-dependent release of #histamine modulates the very first stage of #vision – the #retina 🧪 Paper: plos.io/49K0Qv8 Primer: plos.io/3LupFkL

5 0 0 0
 Histamine modulates early visual processing in awake mice. Top left: Visual responses were recorded in awake, head-fixed mice using single-unit extracellular recordings from retinal ganglion cell (RGC) axons in the optic tract and from dorsal lateral geniculate nucleus (dLGN) neurons, while pupil dynamics and locomotion were monitored. Top right: Tripodi and Asari manipulated histaminergic input to the retina by chemogenetic activation of hypothalamic tuberomammillary nucleus (TMN) neurons or by systemic pharmacology targeting histamine receptors. H3 receptor antagonists increase histamine release, whereas H1 receptor antagonists block postsynaptic histamine effects. Bottom left: Increasing histamine levels, either chemogenetically or pharmacologically, slowed and weakened visual responses in both RGC axons and dLGN neurons, whereas blocking H1 receptors had the opposite effect, consistent with H1 receptor-mediated gain modulation. Bottom right: Ethological implication: in nocturnal mice, histamine levels are low during daytime, when the animals rest, enabling faster and stronger retinal responses and potentially facilitating rapid detection of threats. At nighttime, when the animals are active, high histamine levels suppress and slow visual responses. Partly created with biorender.com.

Histamine modulates early visual processing in awake mice. Top left: Visual responses were recorded in awake, head-fixed mice using single-unit extracellular recordings from retinal ganglion cell (RGC) axons in the optic tract and from dorsal lateral geniculate nucleus (dLGN) neurons, while pupil dynamics and locomotion were monitored. Top right: Tripodi and Asari manipulated histaminergic input to the retina by chemogenetic activation of hypothalamic tuberomammillary nucleus (TMN) neurons or by systemic pharmacology targeting histamine receptors. H3 receptor antagonists increase histamine release, whereas H1 receptor antagonists block postsynaptic histamine effects. Bottom left: Increasing histamine levels, either chemogenetically or pharmacologically, slowed and weakened visual responses in both RGC axons and dLGN neurons, whereas blocking H1 receptors had the opposite effect, consistent with H1 receptor-mediated gain modulation. Bottom right: Ethological implication: in nocturnal mice, histamine levels are low during daytime, when the animals rest, enabling faster and stronger retinal responses and potentially facilitating rapid detection of threats. At nighttime, when the animals are active, high histamine levels suppress and slow visual responses. Partly created with biorender.com.

The state of our brain shapes what we see. @dgonschorek.bsky.social & @teuler.bsky.social explore a @plosbiology.org study showing that #brain state-dependent release of #histamine modulates the very first stage of #vision – the #retina 🧪 Paper: plos.io/49K0Qv8 Primer: plos.io/3LupFkL

3 2 0 0
 Histamine modulates early visual processing in awake mice. Top left: Visual responses were recorded in awake, head-fixed mice using single-unit extracellular recordings from retinal ganglion cell (RGC) axons in the optic tract and from dorsal lateral geniculate nucleus (dLGN) neurons, while pupil dynamics and locomotion were monitored. Top right: Tripodi and Asari manipulated histaminergic input to the retina by chemogenetic activation of hypothalamic tuberomammillary nucleus (TMN) neurons or by systemic pharmacology targeting histamine receptors. H3 receptor antagonists increase histamine release, whereas H1 receptor antagonists block postsynaptic histamine effects. Bottom left: Increasing histamine levels, either chemogenetically or pharmacologically, slowed and weakened visual responses in both RGC axons and dLGN neurons, whereas blocking H1 receptors had the opposite effect, consistent with H1 receptor-mediated gain modulation. Bottom right: Ethological implication: in nocturnal mice, histamine levels are low during daytime, when the animals rest, enabling faster and stronger retinal responses and potentially facilitating rapid detection of threats. At nighttime, when the animals are active, high histamine levels suppress and slow visual responses. Partly created with biorender.com.

Histamine modulates early visual processing in awake mice. Top left: Visual responses were recorded in awake, head-fixed mice using single-unit extracellular recordings from retinal ganglion cell (RGC) axons in the optic tract and from dorsal lateral geniculate nucleus (dLGN) neurons, while pupil dynamics and locomotion were monitored. Top right: Tripodi and Asari manipulated histaminergic input to the retina by chemogenetic activation of hypothalamic tuberomammillary nucleus (TMN) neurons or by systemic pharmacology targeting histamine receptors. H3 receptor antagonists increase histamine release, whereas H1 receptor antagonists block postsynaptic histamine effects. Bottom left: Increasing histamine levels, either chemogenetically or pharmacologically, slowed and weakened visual responses in both RGC axons and dLGN neurons, whereas blocking H1 receptors had the opposite effect, consistent with H1 receptor-mediated gain modulation. Bottom right: Ethological implication: in nocturnal mice, histamine levels are low during daytime, when the animals rest, enabling faster and stronger retinal responses and potentially facilitating rapid detection of threats. At nighttime, when the animals are active, high histamine levels suppress and slow visual responses. Partly created with biorender.com.

The state of our brain shapes what we see. @dgonschorek.bsky.social & @teuler.bsky.social explore a @plosbiology.org study showing that #brain state-dependent release of #histamine modulates the very first stage of #vision – the #retina 🧪 Paper: plos.io/49K0Qv8 Primer: plos.io/3LupFkL

9 1 0 0
Histamine reduced LGN visual responses in awake head-fixed mice. Schematic diagram of LGN recordings (top left) and a representative histological image showing the electrode location (bottom left; DiI stain, red). Right: Schematic diagram of histamine receptor localizations and their cellular function. Chlorphenamine blocks the postsynaptic receptor H1 (orange) that mediates the action of histamine postsynaptically, while ciproxifan blocks the autoreceptor H3 (green) that inhibits presynaptic histamine release.

Histamine reduced LGN visual responses in awake head-fixed mice. Schematic diagram of LGN recordings (top left) and a representative histological image showing the electrode location (bottom left; DiI stain, red). Right: Schematic diagram of histamine receptor localizations and their cellular function. Chlorphenamine blocks the postsynaptic receptor H1 (orange) that mediates the action of histamine postsynaptically, while ciproxifan blocks the autoreceptor H3 (green) that inhibits presynaptic histamine release.

Internal states & #visual processing: Matteo Tripodi & @hirokiasari.bsky.social show that #histaminergic signaling from #hypothalamus modulates retinal & thalamic responses in mice, so low #histamine during idle periods may speed responses to visual threats @plosbiology.org 🧪 plos.io/49K0Qv8

0 0 0 0
Histamine reduced LGN visual responses in awake head-fixed mice. Schematic diagram of LGN recordings (top left) and a representative histological image showing the electrode location (bottom left; DiI stain, red). Right: Schematic diagram of histamine receptor localizations and their cellular function. Chlorphenamine blocks the postsynaptic receptor H1 (orange) that mediates the action of histamine postsynaptically, while ciproxifan blocks the autoreceptor H3 (green) that inhibits presynaptic histamine release.

Histamine reduced LGN visual responses in awake head-fixed mice. Schematic diagram of LGN recordings (top left) and a representative histological image showing the electrode location (bottom left; DiI stain, red). Right: Schematic diagram of histamine receptor localizations and their cellular function. Chlorphenamine blocks the postsynaptic receptor H1 (orange) that mediates the action of histamine postsynaptically, while ciproxifan blocks the autoreceptor H3 (green) that inhibits presynaptic histamine release.

Internal states & #visual processing: Matteo Tripodi & @hirokiasari.bsky.social show that #histaminergic signaling from #hypothalamus modulates retinal & thalamic responses in mice, so low #histamine during idle periods may speed responses to visual threats @plosbiology.org 🧪 plos.io/49K0Qv8

1 0 0 0
Histamine reduced LGN visual responses in awake head-fixed mice. Schematic diagram of LGN recordings (top left) and a representative histological image showing the electrode location (bottom left; DiI stain, red). Right: Schematic diagram of histamine receptor localizations and their cellular function. Chlorphenamine blocks the postsynaptic receptor H1 (orange) that mediates the action of histamine postsynaptically, while ciproxifan blocks the autoreceptor H3 (green) that inhibits presynaptic histamine release.

Histamine reduced LGN visual responses in awake head-fixed mice. Schematic diagram of LGN recordings (top left) and a representative histological image showing the electrode location (bottom left; DiI stain, red). Right: Schematic diagram of histamine receptor localizations and their cellular function. Chlorphenamine blocks the postsynaptic receptor H1 (orange) that mediates the action of histamine postsynaptically, while ciproxifan blocks the autoreceptor H3 (green) that inhibits presynaptic histamine release.

Internal states & #visual processing: Matteo Tripodi & @hirokiasari.bsky.social show that #histaminergic signaling from #hypothalamus modulates retinal & thalamic responses in mice, so low #histamine during idle periods may speed responses to visual threats @plosbiology.org 🧪 plos.io/49K0Qv8

5 0 0 0
Preview
What are high-histamine foods? Think histamine is just about allergy? Think again. We take a look at what histamine is and how the food we eat may affect our histamine levels

#Protein foods, like fish & meat, especially those that are stored for periods of time, are also likely to be higher in #histamine. Even when frozen, these foods, once thawed, will start to increase their histamine levels.”: buff.ly/sSvxGfA

from BBCgoodfood
#ChronicPain #HealthyEating #nutrition

9 3 0 0
Comprendre l’Histamine et l’Intolérance : Quand le corps réagit trop fort🩸
Comprendre l’Histamine et l’Intolérance : Quand le corps réagit trop fort🩸 YouTube video by Phyto-aromathérapie scientifique

L’histamine… une petite molécule, mais un sacré caractère ! #histamine #troublesalimentaires #histamineintolerance
www.youtube.com/watch?v=AFzx...

0 0 0 0
Post image

Recent #Research by Bei-Bei Zhang et al. investigates suppression of excitatory synaptic transmission in the centrolateral #amygdala via presynaptic #histamine H3 heteroreceptors 🧠 🔎

📜 Read the study here: physoc.onlinelibrary.wiley.com/doi/10.1113/...

1 0 0 0
Post image

Headaches hiding in a glass of red wine tinyurl.com/35z2zt46 via @worldoffinewine #wine #headaches #redwine #histamine #wineworldnews

0 0 0 0

babygirl I'm having side effects you couldn't even dream about

#humor #medication #ibs #histamine

1 0 0 0

What do you know about histamine and its effects on you via diet? Some foods inhibit it and others give it a kick-start and it can cause swelling of the legs and feet. Ever think of that? Tomatoes are one food to reconsider. Research it. #diet #histamine

0 0 0 0

I might be inviting trouble here, but something my guest said on the latest episode of the podcast led me to do some digging, and that led me to write Is Histamine Intolerance a Thing?

www.jeremycherfas.net/blog/is-hist...

#histamine #fermentation

0 0 0 0
Is Histamine Intolerance a Thing? Marieke Hendriksen, of the Royal Academy of Arts and Sciences in Amsterdam, told me in a recent conversation that her new junior researcher had “got an allergic reaction and ended up in A&E” as a result of eating too much fermented food. In the past, Marieke added, “because people ate so many fermented foods, they must have had a higher histamine tolerance.” That rang a distant bell for me, and this is the result. Histamine is the chemical largely responsible for allergic reactions, which are caused by an allergen triggering a release of histamine from specific cells of the immune system. That process is fairly well understood. Histamine is also common in fermented foods as a result of micro-organisms converting histidine, an amino acid found in many proteins. As a result, histamine concentrations are higher in animal ferments — cheese, meats — than in plant ferments. Histamine intolerance is not an allergic reaction but rather a reaction caused by too much histamine in the diet. Here’s the problem: if you search for “histamine fermentation” online, you find a slew of sites all echoing more or less the same stuff about the prevalence and symptoms of histamine intolerance, along with sure-fire ways to minimise it, lists of foods to avoid, lifestyle changes to make, etc., etc. Search for “histamine intolerance” itself on, say, Wikipedia and the picture is somewhat different. > Despite the belief shared by several researchers that consuming histamine can lead to nonspecific health issues, the scientific proof to back this claim is both scarce and inconsistent, the underlying mechanisms are not understood and while several factors have been proposed for explaining the underlying mechanisms of these adverse reactions to histamine intake, no single hypothesis has gained solid scientific confirmation. That in itself explains why there is so much online advice that is charitably best described as a lot more certain than the topic merits. Although Wikipedia and peer-reviewed publications explain how a deficiency in the enzymes that break down histamine _could_ be overwhelmed by a high enough dose of histamine, or _might_ be deficient in some individuals, the results of double-blind trials on self-identified histamine intolerant people are inconclusive at best, and as far as I am aware no enzyme differences have been detected between those people and others not intolerant of histamine. Aware of the perils of online research, I turned to Sandor Katz’s magisterial _The Art of Fermentation_. No time to re-read the entire text, I went, naturally, to the index. Other toxins get a good mention, but histamine is completely absent. From which I conclude that histamine intolerance is quite possibly not a thing at all. What, then, sent Marieke Hendriksen’s new junior researcher to the hospital? Maybe she really did eat so much fermented food that the histamines overwhelmed her breakdown enzymes. Maybe something else entirely. Marieke did warn us not to try this at home: “Don’t eat all your fermented reconstructions at once”. Still, I’m going to go out on a limb here and say, despite not being a doctor of medicine, it’ll probably be just fine. Obligatory self-promotion: Histamine intolerance came up as a brief aside in the episode Revisiting Historical Recipes at Eat This Podcast. Syndicated to Eat This Podcast.

I might be inviting trouble here, but something my guest said on the latest episode of the podcast led me to do some digging, and that led me to write Is Histamine Intolerance a Thing?

www.jeremycherfas.net/blog/is-histamine-intole...

#histamine #fermentation

0 0 1 0