All posts by medical

Genetics

Earlham woman loses weight with ChiroThin after her own doctor told her "genetics" wouldn’t allow that to happen | Paid Content – Local 5 -…

PAID CONTENT | Earlham's Judy Marshall went to her primary care physician for help with losing weight...he told her that "genetics" would not allow that to happen. Judy changed doctors looking for an answer...their answer was a bunch of pills. Judy decided to visit with Dr. Vince Hassel to see if the ChiroThin system would be the solution to her weight loss and health goals. The answer is a BIG YES! She lost 20-25 pounds on the program and is now even more focused on her own well-being and is ecstatic with the results! If you follow his advice and stick to the program, Dr. Hassel's plan WILL WORK where other's fail, period. LEARN MORE at http://www.weightlossindesmoines.com or call/text 515-423-8396

Go here to see the original:
Earlham woman loses weight with ChiroThin after her own doctor told her "genetics" wouldn't allow that to happen | Paid Content - Local 5 -...

Genetics

Science and genetics used to boost Fernside farm – New Zealand Herald

Fernside dairy farmer Julie Bradshaw is passionate about the ability of genetics to create the most efficient herd of cows. Photo / Supplied

A five-year irrigation study has helped Julie Bradshaw make science-based decisions on her Fernside dairy farm.

Bradshaw also uses genetics to improve her herd, as part of her goal to reduce her farm's environmental footprint.

Bradshaw took part in the National Institute of Water and Atmospheric Research (NIWA) co-innovation study from 2016 to 2021.

The study provided landowners with real-time data and forecasts to make science-based irrigation decisions.

This data included measured rainfall, soil moisture, soil temperature, drainage and estimated evaporation, as well as two, six and 15-day rainfall and weather forecasts.

The practical study gave each farmer a fantastic insight into their own land and irrigation practices, while also providing a broader picture of what was happening in the catchment, Bradshaw said.

Having access to precise data also helped Bradshaw and her neighbouring farmers to apply exactly the right amount of irrigation and fertiliser at the right time which aided in mitigating environmental impacts.

"It was amazing. We had so much data and information that we had never had before," she said.

"[This] has helped us make decisions about irrigation and fertiliser use ... backed up by facts and scientific data."

Having these records also made it easier for Farm Environment Plans and audits, Bradshaw said.

"We can show that we have been using our water resource correctly."

All farmers involved in the study were able to see each other's data and this high level of transparency helped the group understand what was happening in various parts of the catchment, Bradshaw said.

"We have always been very open - it's just information and data about water. Getting to know more about other farms is helpful because we are learning from each other along the way."

Although the study had ended, Bradshaw still logged in to the group's website most days to enable her to make accurate decisions about water allocation for the Cust Main Drain Water User's Group.

The group was established 25 years ago to manage water allocation during the irrigation season when water takes were restricted.

"It has been such a bonus to be able to see where everyone is sitting in terms of the moisture on their paddocks, as this helps me to allocate the water more accurately to where it is needed.

"Not only do you see today's moisture levels but you also get a future reading, so you can see where things are heading."

Last year Bradshaw and her husband Peter received the Sire Proving Scheme Farmers of the Year Award from the Livestock Improvement Corporation (LIC).

The couple had worked with LIC for 15 years and the award recognised their record-keeping and commitment to having their entire herd DNA-tested.

"We have a KiwiCross herd which is a cross between Holstein-Friesian and Jersey cows," she said.

"I am really passionate about the ability of genetics to improve your overall herd quality. Having 99 per cent of the ancestry of the cows recorded is an immense help when doing the breeding."

Bradshaw believed improving the overall quality of the herd meant, that if she needed to reduce her stock levels in the future, she knew exactly which animals had the best genetics to meet future farming limits.

She was committed to using science to reduce her impact on local waterways.

"Genetics and DNA testing are so helpful when you think about the possibility of reducing herd numbers in the future.

"We must think ahead and use science to help us make the best decisions both for our business operation and for the environment."

Bradshaw was also participating in a six-month farming project, which examined how the next generation of farmers used innovation to improve their practices.

Waimakariri Landcare Trust (WLT) and Waimakariri Irrigation Limited (WIL) have partnered with the Ministry for Primary Industries (MPI) for this project, with support from MPI's Sustainable Food and Fibre Futures fund, along with Environment Canterbury, Ballance, and DairyNZ.

Bradshaw aimed to learn more about genetics through the course of the MPI innovation project.

"We have three cows that LIC would like a bull calf out of, so that will be an interesting process to follow.

She was also keen to use the MPI innovation project to improve the quality of the grass throughout the farm.

"With the colder and wetter spring we had last year, followed by a cloudy and cooler summer, our grass didn't contain enough sugar and energy for the cows. We want to work on that throughout this project."

Read more:
Science and genetics used to boost Fernside farm - New Zealand Herald

Neuroscience

Neuroscience Program – Neuroscience Program

The Neuroscience Program prepares students through education, research, and professional development for successful careers in neuroscience or neuroscience-related fields.

The Neuroscience Program Ph.D.-granting graduate program began in 1998, and theundergraduate B.S.-granting program began in 2012. The interdisciplinary program is comprised of over 70 faculty members with appointments in 18 departments and 5 colleges, including the 3 medical schools.

See the article here:
Neuroscience Program - Neuroscience Program

Neuroscience

Neuroscience Undergraduate Major

Neuroscience is the multidisciplinary study of the nervous system. A major in Neuroscience provides a broad background in this highly interdisciplinary scientific field, ranging from Molecular/Cellular to Circuits/Systems and to Cognitive/Behavioral Neuroscience. The major is administered by the Program in Fundamental Neuroscience (PFN), with courses offered within the Major (NESC), as well as in Biology, Psychology, and other departments. Students are encouraged to perform independent research in laboratories across the grounds and to proceed to the Distinguished Majors Program.

View post:
Neuroscience Undergraduate Major

Neuroscience

How The Dress Sparked a Neuroscience Breakthrough – WIRED

Back in 2015, before Brexit, before Trump, before Macedonian internet trolls, before QAnon and Covid conspiracy theories, before fake news and alternative facts, the disagreement over the Dress was described by one NPR affiliate as the debate that broke the internet. The Washington Post called it the drama that divided the planet.

The Dress was a meme, a viral photo that appeared all across social media for a few months. For some, when they looked at the photo, they saw a dress that appeared black and blue. For others, the dress appeared white and gold. Whatever people saw, it was impossible to see it differently. If not for the social aspect of social media, you might have never known that some people did see it differently. But since social media is social, learning the fact that millions saw a different dress than you did created a widespread, visceral response. The people who saw a different dress seemed clearly, obviously mistaken and quite possibly deranged. When the Dress started circling the internet, a tangible sense of dread about the nature of what is and is not real went as viral as the image itself.

At times, so many people were sharing this perceptual conundrum, and arguing about it, that Twitter couldnt load on their devices. The hashtag #TheDress appeared in 11,000 tweets per minute, and the definitive article about the meme, published on WIREDs website, received 32.8 million unique views within the first few days.

For many, the Dress was an introduction to something neuroscience has understood for a long while: the fact that reality itself, as we experience it, isnt a perfect one-to-one account of the world around us. The world, as you experience it, is a simulation running inside your skull, a waking dream. We each live in a virtual landscape of perpetual imagination and self-generated illusion, a hallucination informed over our lifetimes by our senses and thoughts about them, updated continuously as we bring in new experiences via those senses and think new thoughts about what we have sensed. If you didnt know this, for many the Dress demanded you either take to your keyboard to shout into the abyss or take a seat and ponder your place in the grand scheme of things.

Before the Dress, it was well understood in neuroscience that all reality is virtual; therefore consensus realities are mostly the result of geography. People who grow up in similar environments around similar people tend to have similar brains and thus similar virtual realities. If they do disagree, its usually over ideas, not the raw truth of their perceptions.

After the Dress, wellenter Pascal Wallisch, a neuroscientist who studies consciousness and perception at NYU. When Pascal first saw the Dress, it seemed to him that it was obviously white and gold, but when he showed it to his wife, she saw something different. She said that it was obviously black and blue. All that night I was up, thinking what could possibly explain this.

Thanks to years of research into photoreceptors in the retina and the neurons to which they connect, he thought he understood the roughly thirty steps in the chain of visual processing, but all of that was blown wide open in February 2015 when the Dress surfaced on social media. He felt like a biologist learning that doctors had just discovered a new organ in the body.

Read more here:
How The Dress Sparked a Neuroscience Breakthrough - WIRED

Neuroscience

Book Review: The Brain in Search of Itself, by Benjamin Ehrlich – The New York Times

THE BRAIN IN SEARCH OF ITSELF: Santiago Ramn y Cajal and the Story of the Neuron, by Benjamin Ehrlich

The devil child, his family called him.

There are streets named for him all across Spain. He spent decades staring down the barrel of a microscope, scrutinizing the tangled tissues of our nervous system. He was a peasant genius, born in a dirt-poor town in the Aragonese highlands; his father himself a devil had high hopes for him: When the boy was just 5 years old, his father dragged him into a small cave in the middle of a barren field, sat him down on a rock and tried to teach him arithmetic, geography and physics. But the boy was stubborn a wayward, unlikable creature, in his own words completely uninterested in learning, mystified by nature and haunted by his own imagination.

Growing up, he reveled in wickedness: The mayor, the priest and a procession of neighbors would show up at his home demanding satisfaction for his misdeeds. The child was, as one of his teachers recalled, inattentive, lazy, disobedient and annoying, a nightmare for his parents, teachers and patrons.

Another teacher predicted that he would end up in jail, if they do not hang him first.

He won a Nobel Prize in 1906.

To tame him, his father a barber-surgeon would whip him till he bled, beat him with a club or pull on his flesh with heated tongs. What a great alarm for the soul, and an instigator of energy, is pain! the boy would later conclude. Pain is a necessary stimulant to creativity. But in the hellscape of his youth, he tried to flee from his home; he hid until his father found him, tied him up and marched him through town to shame him.

Around that time, the boy developed an uncontrollable urge to draw constantly, maniacally on every available surface, not just on textbooks or scraps of paper, but even on walls and doors. When he did, the world rolled back and disappeared. He would become so utterly enthralled that once, many years later, when he was invited to Cambridge University to receive an honorary degree, he stood in the middle of a crowded street, sketching a facade, and would not move, to the consternation of passers-by. At some point, the police were called.

He dreamed of becoming the next Titian or Velzquez, but his father wanted him to be a doctor. After his father threw his drawings into the fire, the boy started hiding them in fields; he improvised art supplies, making crude brushes with wadded-up paper and milking pigments from cigarette wrappers. It was this artistic fervor that slowly and painfully led him to medicine, then to microscopy and histology; beginning with the cadavers that his father dissected before him (and that the son drew in exquisite, morbid detail), he became engrossed first with the interior of the body, and then the world of cells, making his way toward the organ to which his name is forever tied: the brain. Because that devil-child was Santiago Ramn y Cajal, about whom Benjamin Ehrlich has written a passionate and meticulous biography, The Brain in Search of Itself.

A Spanish national treasure, Cajal is one of the most important scientists of all time, considered the father of modern neuroscience after proving that the brain was not made up of a fully continuous labyrinth of fibers as was thought during the 19th century but rather by individual cells that we now call neurons, those mysterious butterflies of the soul, in his words, whose beating of wings may one day reveal to us the secrets of the mind.

His life was one of obsession and hyperbole. The Spanish savants real achievements mirror the self-aggrandizing claims that he made about himself: He wrote that, when he played the flute, other children followed him as though he were the Pied Piper; later, when the news broke of his Nobel, he was swarmed by admirers, some of whom followed him home and stood below his window, chanting his name. According to his brother, he was driven by a blind desire to overcome, to be first in everything without making amends for anything in order to achieve it. Ehrlich writes that Cajal claimed to have once spent 20 hours straight at his microscope, traveling one millionth of a meter at a time. He was an extremely passionate man (I have a brain that is enslaved to my heart) who carved his name into history through sheer force of will, but he was also beset by melancholy and illness, and suffered because of his unquenchable desire to see the new; everything else in his life came second.

Ehrlich might share at least some of his subjects obsessive nature. Almost all he has published so far pertains to Cajal: a full translation into English of the Spaniards dream journal and several articles. After a decades dedication to this man, Ehrlich has profound sympathy and great insight into the workings of his mind. This comes across clearly in The Brain in Search of Itself, a deeply researched, well-written and lovingly crafted biography. But the strength of the book lies less in the writing than in the life of its protagonist, filled with picaresque adventures. As a boy, he learned how to make gunpowder, built a makeshift cannon and fired it at his neighbors house; he served as a military physician in Cuba, where he contracted malaria and, during a guerrilla attack, became delirious and shot his Remington out the window of the infirmary; he was a cobblers apprentice, a bodybuilder (who strutted through the streets, Ehrlich writes, toting an iron bar instead of a walking stick, which he dragged along the pavement), a hypnotist, a chess player, a photographer, a hypochondriac, a writer, a juvenile delinquent, an insomniac and a veritable magician with the microscope. Every time that Cajals voice takes the foreground, the book comes alive and reads much like a novel.

But it suffers from the constraints of genre: It is, like so many biographies, crammed with information that not many casual or literary readers will appreciate. It gets bogged down in overly detailed political anecdotes, descriptions of everyday life in 19th-century Spain, and burdensome exposition of histological techniques. Ehrlich goes to great lengths to give a full and exacting portrait of a fascinating scientist, and while he delivers thought-provoking metaphors, unforgettable scenes and many beautifully worded phrases, to find these pearls one must also endure the rigors of academia and of strict biography, which seemingly dictate that we must follow a person from birth all the way to death.

But a full life is filled with tedium, ordinary occurrences and minutiae that fiction can expunge, to reach a deeper stratum of truth. Ehrlich is aware of this, and effectively applies literary and narrative treatments to reveal the mysteries that facts can obscure. And yet one of the great strengths of his book (the gathering, as he writes, of every trace of him, every sliver of his life and scrap of his work, every piece of information about his science, his country and his world) may not resonate with a wide audience, though it will undoubtedly give pleasure to readers who relish this sort of writing, and who are drawn to devoted and punctilious works of history.

Benjamn Labatut is the author, most recently, of When We Cease to Understand the World, one of the Book Reviews 10 Best Books of 2021.

THE BRAIN IN SEARCH OF ITSELF: Santiago Ramn y Cajal and the Story of the Neuron, by Benjamin Ehrlich | Farrar, Straus and Giroux | 464 pp. | Illustrated | $35

Go here to see the original:
Book Review: The Brain in Search of Itself, by Benjamin Ehrlich - The New York Times

Neuroscience

Understanding and Reframing the Fear of Rejection – Neuroscience News

Summary: At some point, we all face social rejection. Researchers say that while rejection affects us all differently, its how respond to the setback that determines how rejection affects us.

Source: University of New South Wales

If theres one thing for sure, its that life doesnt always go our way. A rejection, no matter the circumstance or size, can be painful, but it is something we all experience at some stage in our lives.

Dr. Kelsey Zimmermann, a researcher at the School of Psychology, UNSW Science, says whilerejectionaffects us all differently, its how we respond to these setbacks that determines how they impact us.

We all have our own experience of feeling rejected at some point, so its something that we can all empathize with, Dr. Zimmermann says. But how we process what happened to us can be critical in helping us move forward positively.

An innate and learned fear

Fear of rejection is something that we are, at least in part, predisposed to. Social rejection, as its known in psychology, is aninnate fearthat were programmed on an evolutionary level to avoid.

Were a verysocial species, so we need to show pro-social behaviors to be included in a group, and thats been critical for our survival throughout history, says Dr. Zimmermann.

Anything that seems intuitively aversive to us is usually there for a reasonits the brain trying to protect us from a perceived danger and keep us safe, Dr. Zimmermann says. In the same way, we naturally have an aversion to spiders and snakeswe dont necessarily have to get bitten to know theyre something we shouldnt touch.

Its why many of us fear public speaking to some degreefor some people, more than death. The idea that we could stumble on our words is frightening, but more so is the possibility that our peers will shun us.

Because of how much of our brains are devoted tosocial interaction, it can be a pretty profound experience to be socially rejected, so we want to avoid it. In fact,social rejectioncauses the same activation inbrain regionsassociated with processingphysical pain, Dr. Zimmermann says.

But fears can also be learned through negative experiences that have hurt us in the past. In this case, prior rejections can shape how we deal with setbacks in the future and can compound over a lifetime.

Our learned experiences can enhance that feeling of discomfort and anxiety around rejection, for example, if someone is bullied. So, if weve learned that people might hurt us, thats where that fear activity in the brain comes into play, Dr. Zimmermann says.

If somebody experiences an unexpected romantic rejection early in life, that could cause them to develop trust issues if they dont understand why it happened. They can carry that experience over into how they treat future romantic prospects.

Age of rejection

Some experiences of rejection can also be more significant than others. Early life is vital for developing oursocial brain, and our relationships with our parents are hugely impactful.

Experiencing rejection from a parent can profoundly impact every future interpersonal relationship, Dr. Zimmermann says. Its arguably the most crucial relationship in our life that teaches us how all other connections are formedhow we can depend on people, form healthy attachments and be independent.

Rejection is also especially formative during particular periods of our life. Social rejection during adolescence can be devastating and have long-lasting impacts into adulthood.

No doubt many people will have some of those core memories of rejection in their teenage years. Youre extremely sensitive to multiple types of stress as the brain is strengthening and refining its connections, so rejection experiences can be particularly pronounced, Dr. Zimmermann says.

While its natural to be afraid of rejection, it is always a possibility when we put ourselves out there. Were also living in a time where the opportunity for rejection has never been more present in our daily lives.

With our phones, we can experience rejection any time of the day or night. Anytime we post something onsocial media, people have the chance to reject us so overtly. Even the absence of feedback can be perceived as rejection, Dr. Zimmermann says.

With exponentially more opportunities for rejection, we might consider working on our relationship with rejection more.

Navigating rejection

Though rejection is never pleasant, being too afraid of it can hold us back from pursuing what we want. The good news is that we can better deal with our fear of rejection through what psychologists call cognitive reappraisal.

The key is to take a step back from the immediate pain and discomfort and consider reframing the situation, Dr. Zimmermann says. There are many instances where its not about you as a person. Its about simply not being the right fit for a friendship, a relationship or a job.

In some cases, rejection can also be alearning experienceor an opportunity for self-improvement.

If its something about our behaviorwere acting in an anti-social or disrespectful waythen the rejection can be a chance for us to think about what we can work on and how we might modify that, Dr. Zimmermann says.

Dwelling on the disappointment alone can also make the experience harder to move past. Instead, Dr. Zimmermann says it can be helpful to lean on others in our lives.

Dealing with rejection in any part of your life is much easier if you havesocial supportand come from a place of securitywhich can be a lot easier said than done, Dr. Zimmermann says.

If you dont have a secure family attachment or a supportive friend group, rejection can be challenging to deal with on your own. So thats where a therapist can help get to the root of some of your relationships with rejection.

Finally, we can choose to see that although it hurts, rejection is an inevitable part of life. Dr. Zimmermann suggests we can start as small as we want and invite rejection into our lives to increase our tolerance.

Take comfort in the fact that nobody lives a rejection-free life, Dr. Zimmermann says. If you can, put yourself out there a little more and more, and let that repeated experience take the sting out of it a bit.

Author: Ben KnightSource: University of New South WalesContact: Ben Knight University of New South WalesImage: The image is in the public domain

Read the original:
Understanding and Reframing the Fear of Rejection - Neuroscience News

Neuroscience

Researchers Uncover Brain Waves Related to Social Behavior – Neuroscience News

Summary: Study reveals brain wave activity in the medial prefrontal cortex and amygdala associated with social behavior in mice.

Source: Tohoku University

Researchers at Tohoku University and the University of Tokyo have discovered electrical wave patterns in the brain related to social behavior in mice. They also observed that mice showing signs of stress, depression, or autism lacked these brain waves.

Themedial prefrontal cortex(mPFC) and amygdala regions of thebrainregulate our emotion, and undergo pathological changes when we experience psychiatric diseases. However, the detailed neuronal processes behind this remain unclear.

Takuya Sasaki from Tohoku Universitys Graduate School of Pharmaceutical Sciences led a collaborative team who recorded electrical brain signalsso-called brain electrical wavesin the mPFC and amygdala areas of mice.

They found that certainbrain wavesunderwent pronounced variations when the mice interacted socially with one another. Specifically, brain waves at the frequency band of theta (4-7 Hz) and gamma (30-60 Hz) decreased and increased, respectively, during socializing.

When the same tests were applied to mice exhibiting poor social skills or symptoms of depression and autism, the brain waves were not present. Notably, artificially replicating social behavior-related brain waves by an optical and genetic manipulation technique in these pathological mouse models restored their ability to interact socially.

This finding provides a unified understanding of brain activity underlying social behavior and its deficits in disease, says Sasaki.

Looking ahead, Sasaki is eager to identify the basic mechanisms of neuronal dynamics in these brain waves and evaluate the involvement of the other brain regions insocial behavior. In conjunction, he is investigating whether the same brain mechanisms work in humans for clinical applications.

Author: Press OfficeSource: Tohoku UniversityContact: Press Office Tohoku UniversityImage: The image is credited to Takuya Sasaki et al.

Original Research: Open access.Prefrontal-amygdalar oscillations related to social behavior in mice by Nahoko Kuga et al. eLife

Abstract

Prefrontal-amygdalar oscillations related to social behavior in mice

The medial prefrontal cortex and amygdala are involved in the regulation of social behavior and associated with psychiatric diseases but their detailed neurophysiological mechanisms at a network level remain unclear.

We recorded local field potentials (LFPs) from the dorsal medial prefrontal cortex (dmPFC) and basolateral amygdala (BLA) while male mice engaged on social behavior. We found that in wild-type mice, both the dmPFC and BLA increased 47 Hz oscillation power and decreased 3060 Hz power when they needed to attend to another target mouse.

In mouse models with reduced social interactions, dmPFC 47 Hz power further increased especially when they exhibited social avoidance behavior. In contrast, dmPFC and BLA decreased 47 Hz power when wild-type mice socially approached a target mouse. Frequency-specific optogenetic manipulations replicating social approach-related LFP patterns restored social interaction behavior in socially deficient mice.

These results demonstrate a neurophysiological substrate of the prefrontal cortex and amygdala related to social behavior and provide a unified pathophysiological understanding of neuronal population dynamics underlying social behavioral deficits.

Read the original:
Researchers Uncover Brain Waves Related to Social Behavior - Neuroscience News

Neuroscience

Females Found to Itch Less Than Males – Neuroscience News

Summary: The female hormone estradiol helps suppress itch associated with psoriasis. The findings shed light on why men are more prone to psoriasis and offers hope for new targeted treatment for itch disorders.

Source: Kyoto University

Among the many reasons men may have for envying women, at least when it comes to skin inflammation, is that women have a significantly lower incidence of severe psoriasis. However, the underlying reason for the sex differences had been unclear.

Now, a team of researchers has found that the female hormone estradiol suppresses psoriasis, and the protective role of the hormone has provided a basis for its therapeutic potential.

Our results have not only revealed the molecular mechanisms ofsex differencesin psoriasis but also shed new light on our understanding of the physiological role of estradiol, says Hamamatsu University School of Medicines Tetsuya Honda, formerly of Kyoto University.

The team tested conditional knockout mice, or cko mice, with ovaries removed but supplemented with estradiol pellets or a placebo. In contrast to wild-type mice, the cko mice without the natural ovarian hormones estradiol showed symptoms of severeskin inflammation.

Once these mice were given estradiol, the production of IL-17A and IL-1 cytokines in neutrophil and macrophageimmune cellswas reversed, reducing the inflammation. This effect was also observed in human neutrophils in vitro.

What intrigued the researchers was how the lack of estrogen receptors in immune cells made estradiol ineffective against the cytokines.

These results indicate that estradiol suppresses psoriatic inflammation by regulating neutrophil and macrophage cells, concludes the author.

Author: Press OfficeSource: Kyoto UniversityContact: Press Office Kyoto UniversityImage: The image is credited to Kyoto University

Original Research: Closed access.Estradiol suppresses psoriatic inflammation in mice by regulating neutrophil and macrophage functions by Akimasa Adachi et al. Journal of Allergy and Clinical Immunology

Abstract

Estradiol suppresses psoriatic inflammation in mice by regulating neutrophil and macrophage functions

Psoriasis is a common inflammatory skin disease resulting from dysregulation of the IL-23/TH17 immune axis. The prevalence and severity of psoriasis is higher in men than in women, although the underlying reasons for this are unclear.

We studied whether estradiol, a female hormone, plays protective roles in imiquimod-induced psoriatic inflammation in mice by regulating neutrophil and macrophage functions.

Wild-type mice and conditional knockout mice were ovariectomized, supplemented with placebo or estradiol pellets, and an imiquimod-containing cream applied.

Mice without endogenous ovarian hormones exhibited exacerbated psoriatic inflammation including increased production of IL-17A and IL-1, which was reversed by exogenously added estradiol. The suppressive effect of estradiol on the production of IL-1 and IL-17A was abolished in mice lacking estrogen receptors in neutrophils and macrophages (Esr1f/fEsr2f/fLysM-Cre+ mice). IL-1, which is required for production of IL-17A in the psoriasis model, was mainly produced by neutrophils and inflammatory macrophages. Estradiol suppressed IL-1 production from neutrophils and macrophages in mice bothinvivoandinvitroand from human neutrophilsinvitro.

Our results suggest a novel mechanism for sex-dependent differences in psoriasis clinical phenotypes that may shed new light on the pathology of psoriasis.

View post:
Females Found to Itch Less Than Males - Neuroscience News