اكتشف في ولاية لويزيانا الأمريكية نوع خطير من الأميبا، القادرة على الفتك بالإنسان بعد دخولها الى الجسم بفترة وجيزة جدا.
اكتشفت هذه الأميبيا "Naegleria fowleri " في شبكة امدادات المياه لأربعة مجمعات زراعية بولاية لويزيانا.
وعند دخول هذه الأميبا إلى دماغ الإنسان من خلال الأنف، عند السباحة في أحواض المياه العذبة، تؤدي إلى إصابته بأضرار كبيرة تسبب الوفاة. وكانت آخر إصابة بهذه الأميبا قد سجلت عام 2011 في إحدى ضواحي نيو اورليانز.
والجدير بالذكر ان ولاية لويزيانا تحصل على المياه من نهر مسيسيبي، وأثناء عمليات تصفية ومعالجة المياه تموت كافة الميكروبات الموجدة فيها. ولكن حسب معطيات العاملين في قطاع الصحة، يمكن لهذه الأميبا النفاذ الى داخل أنابيب شبكة إمدادات المياه عبر الشقوق المجهرية الموجودة في جدران الأنابيب المستخدمة بعد عمليات المعالجة.
استنادا الى هذا ستضطر السلطات الى زيادة نسبة الكلور المستخدمة في معالجة مياه الشرب بهدف حماية المواطنين من خطر هذه الأميبا.
المصدر: RT + برافدا.رو
Dr. Roni Daoud - Curyeux - SI MON ENFANT VOIT BIEN, DOIS-JE L'AMENER QUAND MÊME CHEZ L'OPTOMÉTRISTE?
MONROVIA, Liberia--A Liberian doctor who was among three Africans to receive an experimental Ebola drug has died, the country's information minister said Monday.
Chia seeds benefits such as sesame seeds are relatively small. They are usually brown, darker or lighter, but some varieties are white, beige or gray. Grain color does not affect its nutritional value, but may be of interest to the color of the food preparation.
The pale chia (or white) has a rather bland taste. That of brown seeds (or black) is a bit more pronounced, but still enjoyable. They can be eaten as is; they can also grind to incorporate in recipes or sprinkle.
After about 30 minutes in water or juice, chia, such as psyllium, form a mucilage (viscous liquid). The seeds crackle least in the tooth when dry: their texture so slightly reminiscent of poppy seeds in cakes.
Comparative nutritional value
Chia seeds are naturally rich in dietary fiber and "good fats." They contain in particular from 15% to 17% omega-3 in the form of alpha-linolenic acid (ALA). The seeds also contain 5% to 8% gamma-linolenic acid (GLA), an omega-6, which adds to their interest. Indeed, some people are not able to synthesize this substance and therefore need a direct source. Borage oil (20% GLA) and evening primrose oil (10% GLA) are the best known sources of GLA, but they exist only as supplements. Hemp seed oil contains 2%.
Chia also contains about 23% protein and is a good source of vitamin B9, calcium and antioxidants.
The high fiber content of chia and its mucilaginous properties make it an interesting product to increase fiber consumption, especially for people who suffer from constipation.
Research on Chia
Cardiovascular effectiveness: Chia, like other high-fiber foods and "good fats" may help protect against cardiovascular disease.
Two studies conducted at the University of Toronto have achieved results in this direction. In the first, people with type 2 diabetes followed a diet including 33 g to 41 g of chia per day. After 12 weeks, the researchers found a reduction of certain cardiovascular risk factors: blood pressure, the rate of C-reactive protein (a marker of inflammation) and the von Willebrand factor (a protein that increases blood clotting). These effects were associated with the ability of chia to limit the usual increase in blood sugar after a meal.
An independent study conducted among people prone to obesity, however, reversed the effects of dietary supplements chia (50 g per day) on inflammation.
Miscellaneous: Externally, the chia oil could relieve itching (or pruritus) caused by dry skin, a frequent problem for people with diabetes or severe renal insufficiency problem.
According to the European Committee for Novel Foods organization and Processes, chia has a potential allergen, which is not yet clear. People allergic to other seeds (sesame or flax, for example) should therefore exercise caution because of possible cross allergy.
Occasionally: gastrointestinal discomfort.
With plants or supplements: Theoretically, the effects of chia seeds could be added to those plants or supplements that have antihypertensive effects or anticoagulants.
With drugs: Theoretically, the effects of chia seeds could be added to those of antihypertensive drugs or tablets anticoagulants.
Commercially, there are whole chia seeds, brown or white. They are also sold grinded. In this case, it would be wise to refrigerate after opening the packaging to preserve the omega-3 they contain. I prefer to buy them in their whole form to preserve its potency.
If you are eating Chia seeds, please share with us how it is helping you in your daily life. Your experience may help other people.