sábado, 29 de outubro de 2016

Composto NMN existente em verduras pode ser o elixir da juventude

Encontram-se nos brócolos, abacates, couves, etc..
As novidades são que vão começar ensaios em humanos e que as quantidades recomendáveis provavelmente vão requerer suplementação:
http://time.com/4547919/this-compound-in-broccoli-can-slow-aging/
https://www.thesun.co.uk/news/2072621/broccoli-cucumber-and-avocado-may-hold-key-to-anti-ageing-claim-scientists/
https://www.yahoo.com/style/totally-normal-dinner-food-might-231002455.html


Citando:
"The mice who were treated with NMN gained less weight, converted food into energy more quickly, and had better blood sugar levels than the animals who were not given the compound.

The reduced risk of age-related diseases led researchers to speculate that consuming foods with NMN could potentially lead to longer life spans for humans. Researchers at Keio University in Tokyo have launched a study on humans by giving the participants supplements of NMN in pill form."

quinta-feira, 27 de outubro de 2016

Ingredientes de manteiga de amendoim?

Há manteiga de amendoim e manteiga de amendoim. Algumas não contêm qualquer tipo de ingrediente adicional (sal, açúcar, conservantes) que não o amendoim:
  • Resultados da pesquisa "manteiga amendoim":
    • O tamanho "normal": https://www.prozis.com/pt/pt/prozis-foods/manteiga-de-amendoim-500-g 
    • O tamanho "alarve": https://www.prozis.com/pt/pt/prozis-foods/manteiga-de-amendoim-1000-g 
    • Citando o sítio:
    • "O Peanut Butter da Prozis Foods é feito a partir de um único ingrediente, amendoins, para que desfrutes de um creme de barrar natural e delicioso ou então como adição a um batido. Para além de serem uma fonte saudável de proteína de construção muscular e ácidos gordos de grande valor energético, os amendoins também fornecem uma boa quantidade de fibra, vitamina E e magnésio. O magnésio é especialmente importante para indivíduos ativos que pratiquem exercício, uma vez que contribui para o funcionamento normal dos músculos e para uma síntese proteica adequada, para além de reduzir o cansaço e a fadiga. Uma colher desta manteiga de amendoim fornece-te mais proteína e muito menos hidratos de carbono do que a versão normal que podes comprar no supermercado. Faz as contas: em 100 gramas de manteiga de amendoim, 30 gramas são proteína e apenas 7 gramas são hidratos de carbono. Esta proporção de nutrientes, combinada com a composição geral de nutrientes e uma fórmula sem adição de sal, óleos hidrogenados, adoçantes ou aromatizantes artificiais, fazem do Peanut Butter da Prozis Foods uma excelente escolha para aqueles que exigem a melhor nutrição.
    • Totalmente natural, sem aromatizantes artificiais nem adoçantes; Excelente potenciador de energia e fonte de proteína; Rico em antioxidantes, magnésio e ácidos gordos saudáveis; Mais proteína e menos hidratos de carbono do que a manteiga de amendoim tradicional; Sem adição de sal e gorduras trans; Adequado a dietas Vegan, Kosher e Halal."
  • Mais exemplos: 
  • De salientar que a manteiga de amendoim não tem muitos ingredientes mas tem outra "coisa": muitas calorias (relevante para quem esteja a tentar controlar o peso).
  • Há também a manteiga de amêndoa com 1 ingrediente. Conseguem adivinhar qual? 
Fica a informação. FFR. 


quarta-feira, 26 de outubro de 2016

37 tratamentos médicos aparentemente inúteis

http://www.liverpoolecho.co.uk/news/liverpool-news/37-medical-treatments-completely-pointless-12076752

How the Sugar Industry Shifted Blame to Fat - NYTimes.com

Artigo do NYT sobre o açúcar vs. as gorduras, que causou problemas até mais não desde então. Algumas evidências parecem estar a aparecer (investigação do New York Times):
How the Sugar Industry Shifted Blame to Fat - NYTimes.com


Mais um artigo sobre o assunto:
http://www.ctvnews.ca/mobile/health/study-details-sugar-industry-attempt-to-shape-science-1.3068502


E o estudo:
http://jamanetwork.com/journals/jamainternalmedicine/article-abstract/2548255






Ai os Glifosatos - reloaded

A novela continua... Agora a OMS diz a um departamento para não publicar informações até que alguém (quem?) as analise:
http://www.dailymail.co.uk/wires/reuters/article-3871834/WHO-cancer-agency-asked-experts-withhold-weedkiller-documents.html
Citando:
"Pressure has been growing on the experts who worked on IARC's glyphosate review in part because other regulators, including in the United States, Europe, Canada, Japan and New Zealand, say the weedkiller is unlikely to pose a cancer risk to humans.
The conflicting scientific assessments have delayed a decision on whether glyphosate should be relicensed for sale in Europe, and prompted senior U.S. lawmakers to question whether IARC should receive funding from U.S. taxpayers.
IARC defends its methods as scientifically sound and says its monographs - the name it gives to its classifications of carcinogens - are "widely respected for their scientific rigor, standardized and transparent process and ... freedom from conflicts of interest"."

terça-feira, 25 de outubro de 2016

Carência de Vitamina D em Portugal - Estudo

Surpreendentemente, num dos países com mais sol do mundo / ano, há carência de Vitamina D (que está associada a uma série de problemas e doenças algumas até ditas crónicas - há livros inteiros sobre o assunto).
Por isso toca a apanhar sol:

10 Slimming/Anti-inflamatory Foods to Eat If You Sit All Day | TIME

Mais uma daquelas listas, algo questionáveis. De qualquer forma há estudos a indicar que estar sentado muito tempo tem efeitos inflamatórios e estes alimentos / ingredientes suprimem a inflamação (o foco não é emagrecimento como o título indicia mas supressão da inflamação):
10 Slimming Foods to Eat If You Sit All Day | TIME


Citando:

"Science backs this up: Prolonged sitting has been linked to everything from increased hunger and inflammation (which both lead to obesity and belly fat) to high blood pressure and high blood sugar. If you’ve ever heard the phrase “sitting is the new smoking,” now you know where it stems from. But the damage doesn’t stop there. In addition to these preventable diseases, spending too much time on your behind can also result in tight hip flexors, back pain, weak glutes, and rounded, sore shoulders which are all things that can decrease the effectiveness of your workout or lead to a disabling injury, says Piya Tony Vacharasanee, NASM, ACSM, of Body Space Fitness in New York City. All that from an innocent-looking swivel chair.
(...)
But tweaking your diet may also help diminish some of the health risks associated with sitting. A number of nutrients have been shown to fight inflammation by “turning off” inflammatory genes. Add these recommended foods that follow into your diet to help ease some of the damage of your 9-to-5 and you’ll be on your way to a leaner, healthier you."

A lista está na ligação.

sábado, 22 de outubro de 2016

Resveratrol ajuda a corrigir níveis hormonais de mulheres (PCOS)

http://m.thesundaily.my/node/403112


Citando:
"RESVERATROL, a polyphenol which occurs naturally in red wine, grapes, nuts and chocolate, could correct a hormonal imbalance in women with Polycystic Ovary Syndrome (PCOS), a condition which can cause infertility in women of childbearing age.
Researchers at the University of California, San Diego, have demonstrated that a polyphenol called resveratrol, which is found in red wine, peanuts, blackberries and chocolate, was able to correct hormone levels in 30 patients with Polycystic Ovary Syndrome (PCOS)."

quarta-feira, 19 de outubro de 2016

Pasta de dentes revolucionária

... Que ao reduzir os problemas na gengiva / placa bacteriana consegue reduzir os efeitos do processo inflamatório (que acaba por afectar o coração) com menos efeitos secundários que as estatinas, a aspirina e outros medicamentos usados:
 http://www.dailymail.co.uk/health/article-3850014/Revolutionary-new-toothpaste-not-removes-plaque-save-heart-attack.html
Citando:
"His research is estimated to have saved more than a million lives worldwide.
Speaking to the Daily Telegraph, the professor added: ‘This could have policy implications for tens of millions of people alongside statins, aspirin and beta blockers and other agents that help lower cardiovascular disease.
‘The distinguishing thing in my mind about this is that it is a fairly simple thing to do and yet it could have a big impact. And there are no side-effects that we know of.’
(...)
Created in the US, the special toothpaste removes twice as much plaque as rivals.
Levels of inflammation in those using it fell by 29 per cent – only slightly lower than the level of 37 per cent achieved by the use of statins.
Inflammation is measured by the high sensitivity C-reactive protein, a marker for heart attacks and strokes."

Gene FOXD1 e o risco acrescido de complicações na gravidez

Mais uma pista genética: gene FOXD1
http://www.dailymail.co.uk/health/article-3850968/Is-miscarriage-gene-Women-specific-mutation-higher-risk-losing-baby.html?ITO=1490&ns_mchannel=rss&ns_campaign=1490

domingo, 16 de outubro de 2016

Noz-de-areca e cancro

A noz-de-areca ou pinangue (por vezes designada erradamente por noz de betel) é considerada cancerígena sendo mascada em muitos locais da Ásia (e é ingrediente de uma mistura de especiarias, sementes e especiarias - pan masala - tomada depois das refeições para refrescar o hálito e ajudar a digestão - publicitado por Pierce Bosnan, ex-007, na Índia, contra a vontade do Governo Indiano). Resta saber se este ingrediente aparece em pastas de caril, tikka massala e afins - relevante para quem é perdido por comida asiática.


Informação adicional:
http://www.bbc.com/portuguese/noticias/2015/03/150322_noz_bedel_lab
https://pt.m.wikipedia.org/wiki/Noz_de_areca


Citando:
"Muitos mascadores habituais de bétele perdem os dentes já na idade de vinte e cinco anos. Além disso, a Agência Internacional para a Pesquisa do Cancro (IARC - International Agency of Research on Cancer) classifica a noz de bétele como um cancerígeno conhecido. Dosagens altas podem causar diarreia e tonturas. Doses muito altas podem ser mortais. O uso a longo termo pode causar habituação. Em pesquisas efectuadas entre consumidores que tanto usaram o tabaco como a noz de bétele disseram que, entre os dois, acharam mais difícil vencer o hábito de mascar a noz."

Privação do sononpode levar a depressão?

Que a depressão afecta o sono (insónias) já se sabe. E se o contrário também for verdade?
http://thewire.in/73233/lack-sleep-makes-us-depressed-can/


Citando:
"But could things really be the other way around? Could poor sleep be making you depressed? Over the past decade or so it has become increasingly clear that disturbed sleep often comes before an episode of depression, not afterwards, helping to do away with the notion that sleep problems are secondary to other disorders."
(...)
"It was found that participants who had been sleep deprived for approximately 35 hours showed a greater amygdala response when presented with emotionally negative pictures when compared to those who had not been sleep deprived. Interestingly, links with parts of the brain that regulate the amygdala seemed weaker, too – meaning that the participants were perhaps less able to control their emotions. Such findings could help to explain how poor sleep may actually cause difficulties such as depression."

sábado, 15 de outubro de 2016

RESOURCE: hormone.org

http://www.hormone.org/
Citando:
"
The Hormone Health Network helps you and your health care provider have more informed discussions about hormones and health. Our free, online resources come from the most advanced clinical and scientific expertise in endocrinology."


Exemplo de artigo:
http://www.hormone.org/hormones-and-health/the-endocrine-system/factors-that-affect-endocrine-function



quarta-feira, 12 de outubro de 2016

Que gorduras devíamos estar a consumir? - PREDIMED study

Que gorduras devíamos estar a consumir?
Sim devemos consumir. Mas talvez não manteiga ou derivados de leite...


http://time.com/4518041/high-fat-foods-avocado-olive-oil/?xid=newsletter-brief


PREDIMED Study (Dieta Mediterrânea):
http://www.nejm.org/doi/full/10.1056/NEJMoa1200303#t=article

A maneira de ser Nórdica faz bem à saúde? How to Hygge (Livro)

Parece que sim. E as louras também?
http://www.dailymail.co.uk/health/article-3828609/Ten-reasons-HYGGE-Scandinavian-lifestyle-trend-cosy-content.html


Citando:
"So what’s it all about? Well, there’s no direct translation: hygge – pronounced ‘hoo-ga’ – is a Nordic word that describes ‘a feeling of cosiness and content’, and ‘enjoying the good things in life with good people around you’.
For Swedish people like me, the traditional midsummer celebration is the essence of ‘hygge’, but its philosophy goes far beyond an annual lunch in the garden: it is a mentality shared by all Viking descendants.
And there is overwhelming medical evidence that adopting a few of our Nordic ways might just be the health boost you’re looking for…"

terça-feira, 4 de outubro de 2016

Mutação em gene faz preferir comida mais calórica

http://www.telegraph.co.uk/science/2016/10/04/scientists-discover-fat-craving-gene-after-hosting-all-you-can-e/


Citando:
"Scientists have found a gene mutation which makes fatty foods irresistible, and even causes carriers to reject low-calorie versions of the same meal - even when it looks and tastes identical."


Sobre o gene MC4R:
"British scientists have identified a section of genetic code that makes half the population more vulnerable to obesity, diabetes and heart disease.

Those carrying the sequence are on average 4.4lb (2kg) heavier than those who lack it, with 2cm larger waistline, and a tendency to become resistant to the effects of insulin - which can lead to Type 2 diabetes.
The DNA sequence - carried by 50 per cent of the UK population - is a third more common among people of Indian Asian ancestry than among Europeans, say researchers."


Fonte:
http://www.telegraph.co.uk/news/1929032/Half-of-people-carry-fat-gene.html

segunda-feira, 3 de outubro de 2016

Afinal o treino do cérebro não funciona...

Aparentemente afinal o treino do cérebro não funciona ou melhor, funciona, mas não se encontra provado que certos treinos se reflictam positivamente no campo profissional ou noutra área diferente. Assim se treinarmos o Tetris, ficamos melhor no Tetris mas não esta provado que isso nos ajude profissionalmente ou atrasando o aparecimento de doenças degenerativas (como o Alzheimer).


http://www.extremetech.com/extreme/236794-researchers-find-no-evidence-brain-training-games-offset-aging-cognitive-decline

domingo, 2 de outubro de 2016

Pílula contraceptiva ligada a depressão?

... Ou "doorhandle diagnosis" conforme o autor desta notícia suspeita?
http://www.dailymail.co.uk/health/article-3816789/DR-MAX-MIND-DOCTOR-reason-Pill-linked-depression.html


Citando:
"Doorknob revelations can be crucial. A throw-away remark made by a patient as they’re halfway out the door may just be the missing piece of the puzzle; the clue that sounds a klaxon that the patient has a serious physical illness, such as cancer.
However, in my experience, a ‘door-handle diagnosis’ is very often about a patient’s mental health — because, I think, people are too embarrassed or ashamed to make an appointment explicitly to discuss how they are feeling.
Doorhandle diagnosis shows why a really good GP, or nurse, should routinely ask their patient , ever so casually, if everything else is OK."

Ai o [herbicida] Glifosato, outra vez

A FDA está a encontrar Glifosato (presente no Roundup, o sucesso de vendas da Monsanto) em comida de bebé (aveia, trigo):
http://m.huffpost.com/us/entry/12252824


A Monsanto factura 15 mil milhões de USD por ano e cerca de um terço deste valor (5 mil milhões) deriva de produtos contendo glifosatos (recentemente identificados como possível causa de cancro). Muitos detalhes no artigo acima, incluindo o link para o PDF da Monsanto que recomenda uma aplicação final pré-colheita. Genial!

O que é a DLB?

É mais um tipo de demência (que pode representar 15% dos casos e que por vezes é mal diagnosticada - como foi para este famoso actor):
http://metro.co.uk/2016/10/02/a-terrorist-inside-my-husbands-brain-robin-williams-wife-details-the-last-months-of-the-comedians-life-6165686/


Citando:
"Dementia with Lewy bodies (DLB) is a type of dementia that shares symptoms with both Alzheimer’s disease and Parkinson’s disease.
It may account for 10-15 per cent of all cases of dementia.
DLB can be diagnosed wrongly and is often mistaken for Alzheimer’s disease.
Lewy bodies are the cause of DLB and Parkinson’s disease. They are two of several diseases caused by Lewy bodies that affect the brain and nervous system and get worse over time. These are sometimes called Lewy body disorders.
The way someone is affected by DLB will depend partly on where the Lewy bodies are in the brain:
Lewy bodies at the base of the brain are closely linked to problems with movement (motor symptoms). These are the main feature of Parkinson’s disease.
Lewy bodies in the outer layers of the brain are linked to problems with mental abilities (cognitive symptoms), which is a feature of DLB.
Symptons include problems with mental abilities, such as staring into space for a long time or periods when speech is disorganised; depression; day-to-day memory loss; hallucinations and delusions; movement problems; sleep disturbance; a loss of smell; urinary incontinence.
via alzheimers.org.uk"





sábado, 1 de outubro de 2016

Saúde mental no Reino Unido

... A degradar-se desde o último inquérito:
http://m.huffpost.com/uk/entry/12262340
Citando:
"The seven years since the last Adult Psychiatric Morbidity Survey has seen the start of a major change in the way our society views mental health. A notable shift in public attitudes towards mental health is underway, and mental health issues are now widely recognised.

Factors such as recession, poverty and unemployment have adversely affected the mental health of the nation, leading to an increase in demand for help and support and at the same time, services are under enormous pressure.

The data paints a stark picture. In some groups of the population it is stabilising, while in other groups it is worsening. Nowhere is it improving. We can now start to see the true scale of an issue which has been stigmatised for centuries and it is deeply worrying for all. "

Álcool como anti-depressivo (auto-medicação)?





http://www.medicaldaily.com/depression-alcohol-has-same-effects-rapid-anti-depressants-study-says-399568
Citando:
"Because of the high comorbidity between major depressive disorder and alcoholism there is the widely recognized self-medication hypothesis, suggesting that depressed individuals may turn to drinking as a means to treat their depression," she said in a press release. "We now have biochemical and behavioral data to support that hypothesis."
Raab-Graham cautioned, however, that relying on the intoxicating substance can still pose a threat.
"There's definitely a danger in self-medicating with alcohol," she added. "There's a very fine line between it being helpful and harmful, and at some point during repeated use self-medication turns into addiction."