Years ago, microbiota transplants seemed like something out of science fiction. Today they are already curing diseases

Sometimes extreme situations require extreme measures, at least in the field of medicine and health. Perhaps to many, the idea of microbiota transplants It seems to them that it belongs to this range of extreme measures. Perhaps more so if we refer to this therapy by its first and last name, because we are talking about fecal microbiota transplants. Let’s start at the beginning, explaining what exactly these transplants are. Although its name is quite descriptive. The central idea of ​​this treatment is to take a sample of intestinal microbiota from a healthy person and transfer it to the patient’s intestine. For this, samples of fecal matter are used, feces from the donor that are treated for introduction into the recipient’s gastrointestinal system. The process begins, therefore, by taking a sample (or several) of the donor feces. First of all, it must be verified that these feces do not contain pathogens but that the “good bacteria” of our digestive system predominate in the sample. Once this filter has been passed, the sample is prepared in different ways depending on how it will be administered. One possibility is to dry, freeze and encapsulate part of these samples to administer them. through a pill. However, the most conventional options involve diluting the sample in saline water and then filter it and enter it into our system gastrointestinal, either through a tube introduced through the mouth or nose and that would reach our stomach; either through a colonoscopy, an endoscopy through the colon. Fixing the imbalance And all this, for what? Interestingly, if we are transplanting microbes from one person to another, the reason is to fight against a pathogenic bacteria, called Clostridioides difficile (C. diff). This is a bacteria that normally inhabits our system gastrointestinal without causing major discomfort. But not always. In these cases, C. diff It can take over the inside of our intestine, wreaking havoc on it. C. diff They feed on toxic compounds that they metabolize from some foods we consume and that can end up causing even more damage to our microbiota. This infection It is considered the main cause of diarrhea associated with medical treatments, but this It’s not your only symptom.These include fever, pain or tenderness in the stomach, loss of appetite and nausea, symptoms of gastroenteritis. Some more serious cases They can lead to dehydration, blood or pus in the stool, and kidney failure. One of the problems associated with this bacteria is the appearance of recurrent infections: many patients become ill again between two and eight weeks after the original infection. The potential of this tool is yet to be explored. A recent study, for example, explored the possibility of using this type of intervention to improve sports performance. A luck of “fecal doping” similar in some ways to existing techniques. Sport, and especially elite sport, can affect our microbiome, which in turn can be exploited in favor of the athletes themselves. These transplants have even been proposed in veterinary. Specifically, to help preserve koalas, as we saw in a studio also presented in 2019 in the magazine Animal Microbiome. Over the last few years we have been discovering new links between our gut microbiome and seemingly very distant aspects of our health. Now we even know that there is a connection between our brain and this one. Unfortunately, we still do not understand the causal relationships operating in this connection. In this sense, recently we came across a link between these transplants and autism. a study published in 2019 in the magazine Scientific Reports observed that symptoms linked to autism were reduced among those who had received this type of transplants. In Xataka | 50% of the population is infected with H. pylori. We are finally eradicating it and that has unexpected consequences Image | shameersrk / chriskeller

We have been wanting to see how diseases moved in real time. The first steps are taking Valencia

Epidemiology is a science with delay. We know it well, We learned it in the worst way: Since a pathogen begins to move through a region until we collect, analyze and interpret the data that allows us to say that an epidemic is incipient, weeks spend. A few weeks that would be vital to introduce measures capable of reducing their impact and saving many lives. What happens is that, until now, that has been a chimera: bacteria and suspension viruses They are invisible. Although there are initiatives such as analyzing fecal waters, the idea of ​​seeing how pathogens move around the world seems almost science fiction. An increasingly close science fiction, yes. A curious idea. Now, a joint team of the University of Valencia (UV) and the University University of València (UPV) They have developed The first example of a biosensor capable of detecting air changes quickly, easily and cheaply. The small antenna works without additional reagents, or laboratory tests: only small electrical circuits. That is the interesting thing. Valencian researchers have tried the concept with the M13 virus, a well -known microorganism, but the results are promising and extrapolable to any other aerial transmission pathogen. The two key factors. As explained David Giménez (professor of the Department of Chemistry-Physics of the UV) in Levante, are “its price” that “facilitates its scalability and integration into early alert systems, both in Smart Buildings as in devices Weareables“And its” immediacy “because” by not needing additional reagents, this method allows you to instantly detect the presence of real -time pathogens, avoiding long sampling and laboratory analysis processes. “ And now what? Now a lot of work to do. It is true that a network of this type of sensors that were able to monitor in real time the air of train stations, wagons, schools, shopping centers or jobs would give us vital information. The problem is that, of course, there is still much to reach that point. Maybe more than we would like. Do not forget that, between 1980 and 2010, the annual number of infectious disease outbreaks He tripled worldwide and causative diseases almost folded. In addition, none of the “public health emergencies of international importance” (with the nuanced exception of COVID-19) that we have suffered since 2007 was caused by a new and unknown infectious agent. We live in the “Pandemics era“And everything suggests that we are not prepared for it. Of course, the good news is that, despite the increase in the total number of outbreaks,” global improvements in prevention, early detection, control and treatment are increasingly effective. “ And this of Valencia is a good example of this. Or it is better for us because we have the enemy at the doors. Image | Jon Tyson Image | The ‘era of epidemics’ has already begun: are we prepared to face them?

Johann Hari, journalist: “The idea that obesity is a sin is deeply rooted in our culture” | Health and well-being

A couple of days after starting to take Ozempicsays the journalist and writer Johann Hari (Glasgow, 46 years old), he woke up with a strange sensation, unknown to him: he was not hungry. He got out of bed and went out to have breakfast at the bar, the usual breakfast, a chicken sandwich with mayonnaise. He took a couple of bites and couldn’t finish it. It was full. The medicine, belonging to that generation of drugs that have revolutionized The fight against obesity by imitating the effect of a hormone (GLP-1) that tells us when we are full, was restoring a lost perception: that of satiety. Hari tells this and other anecdotes about his experience with these medications in his new book Lose weight at any price. How Ozempic and other drugs are going to revolutionize our diet and our physical and mental health (Península), which reaches bookstores today. In these pages, the journalist, who has been overweight since he was young, embarks on a journey, accompanied by obesity experts and scientists who have participated in the development of the new drugs, for the benefits and risks of these treatments, the uncertainties that surround them and the uncertain scenarios that open in the field of health and beyond it. The journalist attends EL PAÍS by videoconference from London. More information Ask. He has spoken to many scientists. What has impressed you the most about what they have told you? Answer. Which obesity it really does you. Since I was seven years old I knew that being overweight is not good for your health, but I was surprised by the evidence of how serious it is. If you are obese, you are much more likely to suffer a heart attack, stroke, dementia and cancer. If you are obese by the time you are 18, you are 70% more likely to develop type 2 diabetes. And diabetes is the leading preventable cause of blindness in the UK and limb amputation in the US. Q. He assures that these anti-obesity drugs are destined to be the defining medicine of our time, like birth control pills or Prozac at other times in the last century, for example. Why do you say it? R. Because obesity is the biggest cause of death in the Western world. And now we have a medicine that, if you take it, reverses it and puts an end to it. It’s amazing. So all of us who are overweight or obese have a choice, but we have to compare the risks of remaining obese with the risks of these medications and think about it a lot. (These drugs) They are going to have enormous effects. Q. How can they change our lives and our culture? R. The change is enormous. Jefferies Financial, which is a financial consulting firm, made a report for American airlines saying that they may have to spend much less money on jet fuel, because it costs more money to fly with heavier people and that is going to be a much smaller population. Also in Los Angeles there has been an increase in demand for jewelers to change and adjust wedding rings because people have lost so much weight that the rings no longer fit on their fingers. Approximately 20% of Americans have already tried these medications. This is huge. This is an astonishing scientific advance that will profoundly change society for better and worse. “The foods we eat are undermining our ability to feel full” Q. Regarding this negative part, he exposes some issues that the consumption of these medications entails, such as the risk of losing the culture of body positive or what would happen if people with eating disorders access these drugs that help them lose weight. Have you found answers to these questions? R. The invention of these drugs is like the discovery of fire. Fire is a great tool if I use it to heat my house, but it is terrible if I use it to burn my house down. And in the same way, when something as powerful as this is discovered, it will have great positive effects and great negative effects. If you are overweight or obese and start taking these medications, for example, you are 20% less likely to have a heart attack or stroke in the next 18 months. But you also mentioned something that worries me a lot: when you take these medications, you eat much less; and that’s good if you’re obese like me, but people with an eating disorderanorexia for example, if you are thin and start taking these medications, you can kill yourself with them. Therefore, one of the things we must do is regulate these medications very strictly. Q. The book also delves into what makes ultra-processed foods so addictive. Do they cause a kind of short circuit in our brain systems? R. If you look at a photograph of a beach in Spain in 1979, the year I was born, everyone is very thin and you wonder: where are the obese people? So, obesity was very low. Modern humans have been around for 300,000 years, but obesity was extremely rare. And basically, during my lifetime, it exploded. What happened? We know the answer: Obesity skyrockets everywhere people make a change, when they go from eating mostly fresh foods they prepared that day to eating primarily processed and ultra-processed foodsThat is, food is made up of chemicals in factories in a process that is not even called cooking, it is called making food. This new type of food affects us in very different ways. The foods we eat are undermining our ability to feel full and what these new medications do is restore the feeling of satiety. Q. And what about the industry’s responsibility in this context? R. Need regulate the food industry to prevent children from being exposed to these foods that make them sick and undermine their ability to feel full. I’m talking about a long-term solution and we … Read more

Protect your eyesight with Lutein: The vitamin that fights eye diseases

Although his name may sound unknown to many, Lutein is a natural yellowish pigment that belongs to the carotenoid family.. This compound, recognized for its powerful antioxidant action, plays a crucial role in our body, especially in protection and care of eye health. lutein acts as a natural light filterprotecting ocular tissues from damage caused by sun exposure. This pigment is mainly concentrated in the macula, a central part of the retina responsible for detailed vision. Thanks to its ability to block ultraviolet rays and high-energy blue light, Lutein helps preserve visual health and prevent damage to the retina. Natural sources of Lutein Lutein is found in a variety of foods, especially brightly colored fruits and vegetables. Among the richest sources are: Spinach kale Broccoli Pumpkin Carrots Eggs (particularly the yolk) Corn Including these foods in a balanced diet can increase lutein levels in the body and enhance its benefits. Recommended dosage and supplementation For those looking to supplement their diet, Experts suggest a daily dose of lutein ranging between 10 mg and 20 mg. It is important to consume it together with a meal that contains healthy fats, such as olive oil or nuts, to improve its absorption. However, supplementation should be done under the supervision of a doctor, as the ideal dosage may vary depending on health status and individual needs. Eye health benefits According to the specialized health portal Tua Saúde, lutein offers a wide range of benefits, among which are prevention of cataracts and macular degenerationso it helps reduce the risk of these age-related conditions. In addition, can improve night visioncontributing to a better adjustment of vision in low light conditions. This vitamin also reduces oxidative stressprotecting eye cells from damage caused by free radicals and, finally, delays the progression of eye diseaseshelping to slow the progression of various conditions that affect visual health. Lutein has been established as an essential element for eye health, especially in a time where exposure to screens and blue light is constant. Whether through a diet rich in carotenoids or through supplements, this powerful antioxidant can make a big difference in quality of life and visual health. Beyond eye health In addition to its effects on vision, lutein may also have additional benefits for overall health. Studies suggest that its antioxidant action may contribute to protection against cardiovascular diseases and certain types of cancer. Keep reading:

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