PROTOZOA Flashcards
(39 cards)
Protozoa
* unicellular
* protoplasm (function)
* cytoplasm
*endoplasm
T
protozoa: waste of excretion
Cytopyge
Troph - cysts -> large intestine
Encystation
Cyst - troph -> small intestines
Excystation
amoeba
VF responsible for adhesion
GalNac lectin
VF: histolytic cytolytic enzyme
Cysteine proteinase
Stain for DFS
- Troph
- Cyst
- Quensel’s iodine
- Lugul’s, di antonis
Best culture medium for amoeba
Locke’s egg serum
Drug of choice for cysts - amoeba
1. Best
2. Asymptomatic cyst
- Metronidazole
- Diloxanide fluroate
Brain eating amoeba
Naegleria fowleri
Parasite of pigs and monkey
E. polecki
Kissing amoeba - pyorrheal pockets between teeth and gum, tonsillar crypts. Also ingest leukocytes (bacteria, rbc)
E. gingivalis
Causative agent of (Primary amoebic meningoencephalitis (PAM)
N. fowleri
Sappinia diploidea (not primary)
A wrinkled cyst caustative for Granulomatous amebic encephalitis (GAE)
*Contact lenses
Acanthamoeba polyphagia
Balamuthia mandrillaris
Only pathogenic ciliates due to hyaluronidase
B. coli
RH - pigs
Thwon/rolling ball
Parasite related to
* Gay bowel syndrome
* Steatorrhea (greasy, float)
* Leningrad’s curse (traveller’s diarrhea - malabsorption)
* Rotten eggs
G. lamblia
Furazolidine for below 5yrs. old
- Shepherd’s crook
- Nipple/lemon shaped
C. mesnili
- Rosette shaped
- Binucleated troph
- Coninfection - ascaris, enterobius
- Severe colicky abdominal pain
- Irritable bowel sydrome (IBS)
Dientamoeba fragilis
- Binary fission
- Ping pong dse
- Strawberry cervix
- Vulvar itchiness
T. vaginalis
Stain:
* geimsa
* papaniculau
* acridine orange
* romanowsky
Culture:
* Diamond mod.
* Feinberg, whittington
Small race e. histolytica
E. hartmanni
Hemoflagellates
1.Ovoidal w/out free flagellum
2.W/ free flagellum
3.Continuous flagellum (anterior)
4.Continuous flagellum (posterior)
- Amastigote//Leishmania
- Promastigote/Leptomonas
- Epimastigote
- Tripomastigote
Vector
1. T. brucei
2. T. cruzi
- Tsetste/glossina
- Reduviid/kissing/killer/assassin/
tricitomine/triatomid bug
Difference in DS
1. T brucei
2. T. cruzi
- Trypomastigote
- Amastigote
WASS - swollen at nape
T. brucei gambiense