plante toxica cultivate
DESCRIPTION
PLANTE TOXICA CULTIVATE. Atropa belladonna l . – matraguna – fam. Solanaceae. Compozitie chimica : alcaloizi tropanici (0.2-9 %) - hiosciamina → uscare si extractie →atropina - beladonina, scopolamina - alcaloizi pirolici si pirolidinici. Atropa belladonna L. Intoxicatia : - PowerPoint PPT PresentationTRANSCRIPT
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Compozitie chimica:
-alcaloizi tropanici (0.2-9 %)
-- hiosciamina → uscare si extractie →atropina
-- beladonina, scopolamina
-- alcaloizi pirolici si pirolidinici
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Intoxicatia: - asemanarea speciei cu alte specii (bace, radacina,
frunze)- 2-3 bace = intoxicatie copii-10 bace = moarte adult- 1 baca = 2 mg atropina
Debut intoxicatie: - greata, voma, fenomene neuro-vegetative (110-120
batai/ min – tahicardie), uscaciunea mucoaselor, dispnee, midriaza, orbire trecatoare
SNC – anxietate, vertij, psihozaDelirul ‘atropinic’= stari de euforie/ furie ; viziuni stranii-Fct de cant = coma convulsiva → coma calma→
depresie generala→ moarte
Masuri: - evacuarea rapida a toxicului, spitalizare
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Compozitie chimica:- Reantracenozide si agliconii lor (fisciona, crizofanol-Taninuri (galice + catehi ce)Utilizare: timp indelungat → tulburari intestinale, congestie in micul bazin
Specie bogata in Ca(C2O4).(H2O) = dermatiteIngerare de frunze bogate in Ca(C2O4).(H2O) = moarte
Intoxicatia: - diaree-- intoxicatii intestinale-- iritatie renala, hematirie
Aparitie de fenomene estrogene.
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Comp. chimica:- glicozide cardiotonice (convallatoxina, convallatoxolozida ) 0.2 -0.4 % in frunza; 0.5% in flori si seminte- nu se gasesc in pulpa fructului-saponine sterolice (convalarina) = iritanta, purgativaIntoxicatia: bace, rizomi, frunze; primele semne dupa 15 bace ( la copii):-tulb digestive (greata, voma)-- tulb cardiace (aritmie)-- spasme musculare, vertij
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Comp. chimica:-glicozide cardiotonice (digitoxina, gitoxina, gitalina)-- saponine sterolice (digitonina, gitonina, tigonina)
OO
R
OH
H
HO
R = H : digitoxigeninaR = OH : gitoxigeninaR = O-CHO : gitaloxigenina
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Intoxicatii:- confuzii cu alte specii asemanatoare- tulburari digestive (voma, diaree)→ neuro-senzoriale
(somnolenta, concentrare dificila) → vizuale (halou colorat in galben)
- manifestari cardiace specifice (bradicardie, tulb de automatism )
O fr cont 1.6 – 4.6 mg heterozide = D toxic
Tratament: - eliminarea toxicului - administrarea de carbune activ - adm atropina/fenitoina
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Comp. chimica:-glicozide cardiotonice (primare si secundare)-- saponine sterolice (tigonozida)
Intoxicatia:- Simptomatologie identica cu D. purpureae
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Comp. chimica:-glicoalcaloizi sterolici(solasonina)-saponine sterolice (diosgenina)
Utilizare in scop medicinal: solasodina→hormoni steroidici
Intoxicatii: similare la S. dulcamara
RO
O
NH H
R = H solasodina
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Comp. chimica:-alcaloizi tropanici (scopolamina, hiosciamina)-- cont ↑ fructe si seminte
Intoxicatie: - dupa 10-20 min: uscaciunea gurii, tulb vizuale, tulb de comportament, midriaza, tahicatdie, halucinatii vizuale si auditive-- somnolenta, coma-- fct de cant starile pot dura si 4 zile
DL scopolamina = 2-4 mg pt adult30-50 seminte = halucinatii vizuale
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Va multumesc!