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AS
ALERXIAS
Alba Porto
3º ESO 16-17
QUE SON AS ALERXIAS?
Unha alerxia é unha reacción do sistema inmunitario cara algo que non molesta a
maioría das demais persoas denominado alérxeno. Os que teñen alerxias soen ser
sensibles a máis de unha cousa.
Normalmente, o seu sistema inmunitario combate os xermes. Sen embargo, na
maioría das reacciones alérxicas responde á unha falsa alarma. Os xenes e o medio
ambiente probablemente teñan un rol nas alerxias.
ALGÚNS SÍNTOMAS DAS ALERXIAS
A inxesta dos alérxenos pode causar: náuseas, vómitos, dolor abdominal, cólicos,
diarrea, ou unha reacción grave e potencialmente mortal.
As alerxias farmacolóxicas polo xeral comprometen a todo o corpo e poden levar
a que se presente unha variedade de síntomas.
Algunhas das máis comúns son:
A proteína da leite de vaca
A proteína do ovo
A peixe
A anisakis
As legumes
As froitas e verduras
Aos froitos secos
Ao marisco
ALGÚNS TRATAMENTOS
Dependendo a alerxia hai diferentes tratamentos:
Por exemplo cremas para as urticarias, pastillas para repoñer as vitaminas que lle faltan
ao corpo e tamén medicamentos específicos para combater cada alerxia.
Intolerancia ou alerxia??
Moita xente non sabe que a intolerancia é unha alerxia pero de baixo risco, xa que as
persoas intolerantes poder comer alimentos que supostamente lle son daniños pero
só chegan a ter unhas dores moi leves ou nalgúns casos non ter dor nin molestias pero
seguir sendo intolerantes.
As veces un intolerante non sabe ben que o é, ou a que alimento é intolerante.
Un exemplo de alerxia é a das persoas celíacas
Celíacos
A enfermidade celíaca é unha enfermidade autoinmune que se caracteriza por unha
inflamación crónica da parte próxima o intestino delgado ou xexuno, causada pola
exposición a gliadina, una proteína vexetal presente nalgúns cereais na dieta. Pode aparecer
ao nacer, por motivos xenéticos ou ao longo do tempo.
A comida apta para celíacos adoita ten un prezo
moi elevado comparado coa comida normal.

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Traballo nutrición Alba Porto 3ºESO 16-17 AS ALERXIAS

  • 2. QUE SON AS ALERXIAS? Unha alerxia é unha reacción do sistema inmunitario cara algo que non molesta a maioría das demais persoas denominado alérxeno. Os que teñen alerxias soen ser sensibles a máis de unha cousa. Normalmente, o seu sistema inmunitario combate os xermes. Sen embargo, na maioría das reacciones alérxicas responde á unha falsa alarma. Os xenes e o medio ambiente probablemente teñan un rol nas alerxias.
  • 3. ALGÚNS SÍNTOMAS DAS ALERXIAS A inxesta dos alérxenos pode causar: náuseas, vómitos, dolor abdominal, cólicos, diarrea, ou unha reacción grave e potencialmente mortal. As alerxias farmacolóxicas polo xeral comprometen a todo o corpo e poden levar a que se presente unha variedade de síntomas.
  • 4. Algunhas das máis comúns son: A proteína da leite de vaca A proteína do ovo A peixe A anisakis As legumes As froitas e verduras Aos froitos secos Ao marisco
  • 5. ALGÚNS TRATAMENTOS Dependendo a alerxia hai diferentes tratamentos: Por exemplo cremas para as urticarias, pastillas para repoñer as vitaminas que lle faltan ao corpo e tamén medicamentos específicos para combater cada alerxia.
  • 6. Intolerancia ou alerxia?? Moita xente non sabe que a intolerancia é unha alerxia pero de baixo risco, xa que as persoas intolerantes poder comer alimentos que supostamente lle son daniños pero só chegan a ter unhas dores moi leves ou nalgúns casos non ter dor nin molestias pero seguir sendo intolerantes. As veces un intolerante non sabe ben que o é, ou a que alimento é intolerante. Un exemplo de alerxia é a das persoas celíacas
  • 7. Celíacos A enfermidade celíaca é unha enfermidade autoinmune que se caracteriza por unha inflamación crónica da parte próxima o intestino delgado ou xexuno, causada pola exposición a gliadina, una proteína vexetal presente nalgúns cereais na dieta. Pode aparecer ao nacer, por motivos xenéticos ou ao longo do tempo. A comida apta para celíacos adoita ten un prezo moi elevado comparado coa comida normal.