quarta-feira, 28 de junho de 2017
Consumo de peixe e benefícios na artrite reumatóide
Fungos do papel de parede facilmente passam para o ar
... causando problemas respiratórios:
https://www.sciencealert.com/researchers-find-mould-toxins-can-easily-become-airborne-indoors
Citando:
"(...) Particles shed by several species of fungi (that we'd commonly think of as mould) can contain chemicals called mycotoxins, and that the toxins themselves can also become airborne.
For people with asthma and other allergies, the mould particles themselves can be a nightmare, inflaming the lungs and sinuses and causing anything from sneezing and itchy eyes to restricted airways and asthma attacks.
This is usually caused by the body's immune system becoming sensitive to compounds in the spores and hyphae or to waste products called microbial volatile organic compounds, and not specifically the mycotoxins.
Usually, mycotoxins are substances we'd associate with food contamination as they leach out of fungi growing on fruit or grains. Nobody is sure why fungi produce them, but consumed in high enough concentrations they can be deadly.
While their effects on the body after being ingested have been studied extensively, less is known about the effect of breathing in mycotoxins, or whether it's even something to consider as a potential health concern for most of us.
"There is almost no data on toxicity of mycotoxins following inhalation,""
segunda-feira, 26 de junho de 2017
Apanhar sol pode fazer bem ao eczema (problema de pele)
Exposure To Sunlight Could End Eczema Symptoms, New Research Finds | HuffPost UK
Citando:
"Exposure to sunlight releases a compound from the skin that can alleviate symptoms of eczema, research has found.
The molecule, called nitric oxide, works by dampening inflammation, which causes itchy skin associated with the condition.
Scientists say their findings pave the way for new therapies which mimic the effects of the sun’s rays and could help patients avoid light therapy, which can have damaging side effects on the skin such as raising cancer risk."
quinta-feira, 22 de junho de 2017
Reacções alérgicas a carne...
... por mordedura de carrapatos?
http://www.dailymail.co.uk/health/article-4630654/Lone-Star-ticks-cause-people-allergic-meat.html
Citando:
"The bite causes an allergy to a sugar molecule that's found in red meat, called alpha-galactose, or 'alpha-gal', according to Business Insider.
Dr. Ronald Saff, of Florida State University, said to the news outlet: 'The weird thing about [this reaction] is it can occur within three to 10 or 12 hours, so patients have no idea what prompted their allergic reactions.'
Victims may have to dramatically alter their diets after the bite because there is no known cure for the alpha-gal allergy."
segunda-feira, 19 de junho de 2017
Sobre a higiene... (Feminina)
http://m.indiatoday.in/story/5-tips-menstrual-hygiene-day-care-sanitation-lifest/1/964966.html
Sugary cereals named and shamed by Liverpool health bosses - BBC News
Sugary cereals named and shamed by Liverpool health bosses - BBC News
Produtos para higiene... (Masculina)
https://www.joe.ie/fitness-health/five-products-every-man-add-wash-bag-589512
Alunos do Porto criam aplicação que ajuda pessoas com restrições alimentares
Novas análises ao sangue podem ajudar a personalizar o tratamento do Cancro da Próstata...
New blood test could see personalised prostate cancer treatment | Society | The Guardian
Citando:
"A new three-in-one blood test could pave the way to precision-personalised treatment for advanced prostate cancer, say scientists.
The test has the potential to transform the way the disease is tackled by targeting specific gene mutations, it is claimed.
By looking for cancer DNA in blood samples, researchers were able to identify men with defective BRCA genes who were likely to benefit from a class of drugs called Parp inhibitors.
Breast cancer drug that can extend lives approved for NHS use
They also used the test to monitor DNA in the blood after treatment started, so patients who were not responding could quickly be switched to an alternative therapy.
Finally, the same test was used to pick up signs of evolving cancer showing the first signs of drug resistance."
Cancro Próstata poderá ser prevenido por combinação de Açafrão, Uvas Tintas e Maçãs (estudo em ratos)
Citando:
"Eating turmeric [açafrão], red grapes [uvas tintas] and apples [maçãs] could help to 'starve' prostate cancer cells and protect men from the disease
- Mice who were fed the ingredients were able to kill off prostate cancer cells
- When eaten in combination, the ingredients can 'starve' off cancer cells
- Foods do this by stopping tumours from taking up compounds they need to grow
- Prostate cancer is the second most common type of cancer among males"
Redes sociais e bem estar psicólogico
Instagram está para o fim da lista. YouTube no topo:
http://time.com/4793331/instagram-social-media-mental-health/
Citando:
"Previous studies have suggested that young people who spend more than two hours a day on social networking sites are more likely to report psychological distress. “Seeing friends constantly on holiday or enjoying nights out can make young people feel like they are missing out while others enjoy life,” the #StatusOfMind report states. “These feelings can promote a ‘compare and despair’ attitude.”"
sábado, 17 de junho de 2017
Dos benefícios do exercício físico
https://www.publico.pt/2017/06/15/ciencia/noticia/exercicio-fisico-cansa-va-la-basta-uma-sessao-para-acordar-o-cerebro-1775665
Citando:
"O artigo conclui que os efeitos mais consistentes de uma só sessão de exercício físico são uma melhoria da função executiva (a capacidade de controlo e regulação de comportamentos), uma melhoria do humor e uma diminuição dos níveis de stress. Por outro lado, confirma-se também que há áreas e circuitos no cérebro com são activados com “exercício agudo”. Uma das mudanças, explica Wendy Suzuki, será um aumento da produção de novos neurónios no hipocampo, uma área do nosso cérebro que regista o nosso passado e também ajuda a imaginar o futuro. Ou seja, há uma área com um papel importante na memória e criatividade que é activada e estimulada com exercício físico.
Apesar de não parecerem restar quaisquer dúvidas sobre os benefícios do exercício físico no comportamento das pessoas, as neurocientistas sublinham que a relação entre a prática de desporto e as mudanças neuroquímicas tem sido estudada sobretudo em modelos animais e, por isso, defendem que esta deve ser uma área de estudo para investir no futuro. "
Brócolos podem conter ingredientes importantes para combater a Diabetes tipo 2
https://www.sciencealert.com/broccoli-could-be-a-secret-weapon-against-diabetes-say-scientists
Citando:
"Broccoli contains an ingredient that can help those with type 2 diabetes control their blood sugar level, according to a new study – potentially providing a much-needed treatment option for millions.
A chemical in cruciferous vegetables like broccoli and sprouts called sulforaphane is thought to be responsible, having been shown to lower glucose levels in earlier lab experiments on diabetic rats."
5 sinais de que há problemas...
... com a cabeça?
http://www.independent.co.uk/life-style/health-and-families/mental-health-awareness-five-signs-symptoms-problem-issues-depression-anxiety-mind-physical-a7725741.html
Críticas ao estudo epidemiológico sobre as batatas fritas
https://health.spectator.co.uk/ignore-the-lazy-headlines-chips-dont-double-your-chances-of-death/
Citando:
"Epidemiological studies often take groups of people of a certain age and observe how many of them die over a certain number of years. This can be useful in identifying the causes of premature mortality, but it does not tell us anything about our ‘chances of death’ which remain 100 per cent despite the best efforts of the health lobby.
Should we avoid chips on the basis of this study? I wouldn’t be too hasty. Published in the American Journal of Clinical Nutrition, it is a fairly average study by the standards of nutritional epidemiology. It does not have any glaring flaws that set it apart from the others, but that is not high praise. Most epidemiological studies are useless and nutritional epidemiology, in particular, is a cesspool of contradictory findings and confounding factors.
This is not the fault of the researchers (...)"
Mindfulness e meditação alteram positivamente o ADN?
Alterações no ADN e impacto na inflamação?
https://www.newscientist.com/article/2137595-mindfulness-and-meditation-dampen-down-inflammation-genes/
Óleo de côco, saudável ou não?
Questionando o óleo de côco e sobre os tipos de gorduras:
http://www.bbc.com/news/health-40300145
Citando:
"Coconut oil is as unhealthy as beef dripping and butter, say US heart experts.
It is packed with saturated fat which can raise "bad" cholesterol, says the American Heart Association in updated advice.
Coconut oil is commonly sold as a health food and some claim the fat in it may be better for us than other saturated fats.
The AHA, however, says there are no good studies to support this.
The health benefits of coconut oil
Healthy Myth?
The advice around which fats to eat can be very confusing.
Animal fats, such as lard, are generally seen as bad, while plant oils, such as olive and sunflower, are seen as healthier options.
That theory is based on how much of one particular type of fat - saturated fat or "sat fat" - these products contain."
domingo, 11 de junho de 2017
Ai as estatinas, outra vez
Agora fazem bem ao coração (contrabalançando os efeitos secundários, descritos no artigo e em outros artigos):
http://www.telegraph.co.uk/science/2017/05/26/statins-help-repair-heart-lowering-cholesterol-study-suggests/
Citando:
"Statins not only lower cholesterol but also repair the heart and restore lost function, a new study suggests.
Around six million people in Britain are prescribed statins but many people do not take the drugs over fears they caused debilitating side-effects.
Last year a 30-year study concluded that the benefits of statins far outweighed the risks and claimed they helped prevent around 80,000 heart attacks a year.
Now new research by Queen Mary University of London suggests they are even more beneficial. Not only do they lower cholesterol but they also appear to improve heart health.
The researchers suspect that the drugs reduce oxidative stress and so slows down heart ageing while at the same time boosting blood flow to help repair damage and lower stress.
The team used magnetic resonance scanning (MRI) to peer into the hearts of 4,622 men and women in their 60s from the UK Biobank, of whom 785 were taking statins.
Compared with untreated individuals, patients prescribed the medicines had lower left ventricular heart chambers containing 2.4 per cent less muscle mass, meaning their hearts were fitter and healthier and more able to pump blood effectively.
The effect was striking because those prescribed statins had been judged to the biggest risk of heart problems. They had higher BMIs, higher blood pressure and were on average four years older."
Secar a roupa dentro de casa é de evitar?
... Principalmente no Inverno e para quem tem alergias / asma:
https://www.joe.ie/fitness-health/never-dry-clothes-inside-washing-590974
Citando:
"But hanging them to dry inside may be turning your house into an unhealthy breeding ground for different agents which thrive in damp places.
Dr Nick Osborne, Senior Lecturer in Environmental Health at the University of NSW, Australia told Kidspot that drying your clothes indoors contributed to the potential growth of mould and dustmites, both of which can be detrimental to your health.
It's particularly dangerous for people who suffer from asthma as it can trigger the symptoms.
Dr Christine Cowie, a senior research fellow at the University of New South Wales said:
"From a health perspective … many biological agents are found indoors and they usually thrive on dampness and inadequate ventilation. They have found that dampness itself has been a good indicator of risk of asthma and respiratory symptoms. There are other studies that show inhalation of fungal spores … are linked to allergic sensitisation and asthma, (...)""
Privação do sono faz cérebro comer-se a si próprio?
Já se sabia que não dormir nos frita o cérebro (entre aspas), agora há um estudo (em ratos):
https://www.joe.ie/news/scientific-research-shows-harmful-effect-sleep-deprivation-brain-589863
Citando:
"This may cause brain cells to eat other parts of the brain, a new study has found.
The brain contains cells known as astrocytes, which work to clear away worn-out brain cells.
However, researchers at the Marche Polytechnic University in Italy recently discovered that astrocytes work at a higher rate in a sleep-deprived brain, according to New Scientist, potentially causing long-term damage.
The researchers compared the brains of mice that had been allowed to sleep for as long as they wanted with the brains of mice that were kept awake an additional eight hours.
A third group of mice was kept awake for a number of days to induce chronic sleep deprivation.
It was found that astrocytes were 6% active in the synapses (junctions which link nerve cells in the brain) of well-rested mice, compared with activity of around 8% in the mice which had been kept awake for eight hours.
The mice that were chronically sleep-deprived showed astrocyte activity of around 13.5%, over double that of the well-rested mice.
"We show for the first time that portions of synapses are literally eaten by astrocytes because of sleep loss," said lead researcher Michele Bellesi."
Importância do exercício físico (caminhadas) em pacientes com cancro e em tratamento
http://home.bt.com/news/uk-news/brisk-walk-each-day-may-cut-risk-of-dying-from-cancer-11364185676972
Citando:
"Those in the exercise group were around half as likely to die as those in the usual care group and less likely to have their disease progress, the study, which has not yet been published in a journal, suggested."
(...)
"In the second study, 992 people with stage three bowel cancer that had begun to spread were assessed twice over seven years for diet and lifestyle.
Researchers looked at how closely people followed American Cancer Society guidelines on nutrition and exercise for people with cancer. The guidelines recommend patients keep to a healthy weight, exercise at a moderate-intensity level for 150 minutes per week and eat healthy food.
The study found that compared to those people who adhered least to the guidelines, those who followed them closely had a 42% lower risk of dying and a trend towards better disease-free survival.
Erin van Blarigan, associate professor in University of California San Francisco department of epidemiology and biostatistics, who worked on the study, said it was thought that exercise may affect cancer by lowering levels of insulin and insulin resistance.
Dr Vicky Coyle, a Cancer Research UK scientist at Queen’s University Belfast, said: “Patients with advanced bowel cancer could benefit from keeping a healthy weight, being physically active, and eating a healthy diet, as this study suggests."
Compensar sono ao fim de semana pode fazer mal...
... Ao coração:
http://www.dailystar.co.uk/health/621236/Is-sleeping-in-good-for-you-social-jet-lag-heart-disease-signs-symptoms
Citando:
"According to preliminary research, social jet lag can cause an increased risk of heart disease, poor health, worse mood and greater fatigue,
The new study found that – even if you do get the recommended eight hours of sleep a night on the weekend – every hour that this is shifted to later in the morning is associated with an 11% increase risk of heart disease."
(...)
"social jet lag: This is what happens to your body when you stay up late followed by a sleep in on the weekend."
Base de dados de ensaios clínicos (estudos)
Os estudos são a maior fonte de notícias na comunicação social sobre nutrição, saúde e afins. Exemplo de uma base de dados com estudos (Estados Unidos, e não só):
https://clinicaltrials.gov/
Citando:
"ClinicalTrials.gov is a registry and results database of publicly and privately supported clinical studies of human participants conducted around the world. Learn more about clinical studies and about this site, including relevant history, policies, and laws."
sábado, 10 de junho de 2017
Consumo de batata frita associado maior risco de morte
https://news.google.pt/news/amp?caurl=http%3A%2F%2Fwww.today.com%2Fhealth%2Fstudy-links-eating-french-fries-increased-risk-death-t112557#pt0-275039
Citando:
"The study tracked the potato consumption of 4,400 adults between ages 45 and 79 over the course of eight years. By the end of the study, 236 people had died.
According to researchers, the twice-weekly fry consumption more than doubled the risk of death. And it's not the potatoes that are the problem — eating them boiled, baked or mashed didn't pose the same risks.
It's the fried ones that'll get you. (Especially the crispy ones.)"
O estudo:
http://m.ajcn.nutrition.org/content/early/2017/06/07/ajcn.117.154872.abstract?papetoc