Study sets matching "term:the colon = e. coli"

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Study sets matching "term:the colon = e. coli"

E. coli
ETEC
ETEC - transmission
ETEC - disease caused
EPEC
Enterotoxigenic
fecal-oral
watery diarrhea
Enteropathogenic
ETEC
Enterotoxigenic
ETEC - transmission
fecal-oral
22 terms
E. coli
E.coli
E. coli commensal properties
Shiga toxic E. coli
Diarrheigenic producing E. coli
enteric gram negative rod. some strains are part of normal gu…
make vitamin K, protect against other pathogens
E.coli strain protuding shiga toxin.
non-Shiga toxin producing strain
E.coli
enteric gram negative rod. some strains are part of normal gu…
E. coli commensal properties
make vitamin K, protect against other pathogens
23 terms
E. coli
e coli gram shape environment
e coli virulence factors
H-antigen
K-antigen
- rod... feces, soil water... commensal
flagella... adhesins (fimbriae, pili)... capsule... LPS... sideorophores…
flagella
Capsule
e coli gram shape environment
- rod... feces, soil water... commensal
e coli virulence factors
flagella... adhesins (fimbriae, pili)... capsule... LPS... sideorophores…
E coli
ETEC symptoms
ETEC treatment
EPEC symptoms
EPEC
mild, self-limiting disease with watery diarrhea but usually…
oral re-hydration and possibly antibiotics
acute watery diarrhea and often vomiting and low-grade fever
oral or parenteral rehydration depending on severity; antibio…
ETEC symptoms
mild, self-limiting disease with watery diarrhea but usually…
ETEC treatment
oral re-hydration and possibly antibiotics
e. coli
e. coli sketchy
pathogenicity islands and e.coli's swi…
ETEC virulence factors
EHEC virulence factors
- shared features : encapsulated, and K antigen is involved i…
- acquire virulence genes... - the genes are called pathogenicit…
- Colonization Factor Antigen (CFA fimbriae), heat labile tox…
- Shiga-like toxin: causes damage to blood vessels --> bloody…
e. coli sketchy
- shared features : encapsulated, and K antigen is involved i…
pathogenicity islands and e.coli's swi…
- acquire virulence genes... - the genes are called pathogenicit…
9 terms
E Coli
enterohemorrhagic - STEC - ... 1. sources…
STEC - virulence determinants, pathoge…
DIARRHEAGENIC E COLI - TYPES?
EPEC
main serogroup is O157:h7... 1. food - undercooked; petting zoos…
1. pili mediate attachment (weak)... 2. T3SS induces formation o…
enteropathogenic - epec... enteroaggregative - eaec... enteroinvasi…
- person to person... - leading cause of childhood diarrhea in d…
enterohemorrhagic - STEC - ... 1. sources…
main serogroup is O157:h7... 1. food - undercooked; petting zoos…
STEC - virulence determinants, pathoge…
1. pili mediate attachment (weak)... 2. T3SS induces formation o…
14 terms
Escherichia coli (E. coli)
What does E. coli ferment?
What color does E. coli produce on Mac…
What color does E. coli produce on Eos…
What is E.coli the #1 cause of?
E.coli ferments lactose
grows pink on MacConkey Agar
Iridescent Green Sheen
E.coli is the #1 cause of UTIs (the contaminated fecal flora…
What does E. coli ferment?
E.coli ferments lactose
What color does E. coli produce on Mac…
grows pink on MacConkey Agar
6 terms
E. coli
ETEC... Enterotoxigenic E. coli
EIEC... Enteroinvasive E. coli
EPEC... Enteropathogenic E. coli
EHEC... Enterohemorrhagic E. coli
Traveler's and childhood diarrhea.... Dehydrating infant diarrhe…
Dysentery.... Usually in young children living in areas of poor…
Diarrhea in infants in developing, low-income nations... Can cau…
O157:H7 and O157:NM... Hemorrhagic colitis: Inflammation and ble…
ETEC... Enterotoxigenic E. coli
Traveler's and childhood diarrhea.... Dehydrating infant diarrhe…
EIEC... Enteroinvasive E. coli
Dysentery.... Usually in young children living in areas of poor…
E Coli
Name
Structure
Habitat
Pathogenic Variety
Escherichia coli
Rod Shaped... Gram Negitive... Bacteria
Warm blooded animals lower intestines
E. coli O157:H7
Name
Escherichia coli
Structure
Rod Shaped... Gram Negitive... Bacteria
E. coli
E coli diseases
Type III secretion system
E coli O157: H7 does not ferment ___
Sorbital medium
GI... UTI... Meningitis... Bacteremia... Wound
Bacteria connects to host cell using this system makes a hole…
sorbitol
Sorbitol medium if the organism has red colonies it is fermen…
E coli diseases
GI... UTI... Meningitis... Bacteremia... Wound
Type III secretion system
Bacteria connects to host cell using this system makes a hole…
E. Coli
Escherichia coli
enterbacteriaceae
100 billion to 10 trillion
coliform group
one of the main species of bacteria that live in the lower in…
family that E coli belongs to
how many number of individual E coli bacterial that one human…
aerobic and facultative anaerobic, non-spore-forming, gram ne…
Escherichia coli
one of the main species of bacteria that live in the lower in…
enterbacteriaceae
family that E coli belongs to
24 terms
E Coli
E coli
Pathogenic E coli
Diseases
HUS
Gram negative rod, hardy and facultative anaerobe. That is pa…
EPEC, EHEC, ETEC, EIEC, EAEC (all enteris). then meningitis-c…
Diarrhea - food or water borne - watery or bloody (dysentery)…
Hemolytic anemia, thrombocytopenia and acute renal failure. 5…
E coli
Gram negative rod, hardy and facultative anaerobe. That is pa…
Pathogenic E coli
EPEC, EHEC, ETEC, EIEC, EAEC (all enteris). then meningitis-c…
E. Coli
Toxin: LT/ST
Shiga/Vero Toxins
Similar to non-pathogenic E.Coli
Traveler's Diarrhea
ETEC
E.Coli O157:H7
EPEC
ETEC
Toxin: LT/ST
ETEC
Shiga/Vero Toxins
E.Coli O157:H7
23 terms
E. coli
enterotoxigenic E. coli (ETEC)
enterotoxigenic E. coli (ETEC)
enterotoxigenic E. coli (ETEC)
enterotoxigenic E. coli (ETEC)
common cause of travelers diarrhea and diarrhea in infants
secrete one or more enterotoxin
causes nausea, vomiting, abdominal cramps, massive watery dia…
high infectious dose
enterotoxigenic E. coli (ETEC)
common cause of travelers diarrhea and diarrhea in infants
enterotoxigenic E. coli (ETEC)
secrete one or more enterotoxin
54 terms
E. coli
serotype O E coli is based on
serotype H E coli is based on
serotype K E coli is based on
virotypes/pathovar E coli types are ba…
LPS
flagellum/haunch
capsule
virulence factors of each E coli species
serotype O E coli is based on
LPS
serotype H E coli is based on
flagellum/haunch
8 terms
E coli
Enteropathogenic
Enterotoxigenic
Enterohemorrhagic
Enteroinvasive
EPEC
ETEC
EHEC
EIEC
Enteropathogenic
EPEC
Enterotoxigenic
ETEC
14 terms
E. coli
10 degrees
30 degrees
37 degrees
55 degrees
0
+++
++
0
10 degrees
0
30 degrees
+++
E. Coli
Full name
Number
Carriers
Causes
Escherichia coli
O157:H7
Cows
Hemorrhagic fever... Bloody diarrhea
Full name
Escherichia coli
Number
O157:H7
16 terms
E.coli
e. coli urethritis
e.coli cystitis
e.coli pyelonephritis
e.coli prostatitis
bloody urine... painful urination/ejaculation... vaginal discharge
cloudy/bloody urine... abdominal pain... fever
vomiting... abdominal pain... fever
urinary dysfunction... fever and chills!
e. coli urethritis
bloody urine... painful urination/ejaculation... vaginal discharge
e.coli cystitis
cloudy/bloody urine... abdominal pain... fever
E Coli
ETEC
EHEC (STEC)
EPEC
EIEC
Traveller's Diarrhea... LT toxin-->Inc. cAMP via AC-->GM1R... ST to…
Shiga-like toxin (Verotoxin)... Invades-->effacement of microvil…
Commonly causes diarrhea in children... Effacement of microvilli
Similar to shigellosis ... No shiga toxin ... Predilection for larg…
ETEC
Traveller's Diarrhea... LT toxin-->Inc. cAMP via AC-->GM1R... ST to…
EHEC (STEC)
Shiga-like toxin (Verotoxin)... Invades-->effacement of microvil…
12 terms
E. Coli
# of Types of E coli
Traveler's Diarrhea organism
Traveler's Diarrhea symptoms
Traveler's Diarrhea cause
Several... Diarrheal disease resembles its cousin strains
Enterotoxigenic E. coli (ETEC)
Cholera like disease... Non epidemic
Production of cholera-like enterotoxin... LT- labile toxin
# of Types of E coli
Several... Diarrheal disease resembles its cousin strains
Traveler's Diarrhea organism
Enterotoxigenic E. coli (ETEC)
14 terms
E. coli
shape and stain of E. coli
diseases of E. coli
E. coli virulence factors
enteropathogenic E. coli
hardy gram negative bacillus
diarrhea, HUS, UTI, neonatal meningitis, sepsis
virulence factors include: endotoxin (lipid A of LPS), exotox…
Bundle-forming pili, attaching and effacing, type III secreti…
shape and stain of E. coli
hardy gram negative bacillus
diseases of E. coli
diarrhea, HUS, UTI, neonatal meningitis, sepsis
E.COLI
Transmission of ECOLI
Escherichia coli info
Reservoir
Serotypes
Fecal: Oral... Food: Meat, salads, cross contamination... Water: Dr…
G (-)rod... 4.64 MBP
Harmless gut... Colon bacteria... Humans and animals... Contaminated o…
The set of antigens that characterizes the group
Transmission of ECOLI
Fecal: Oral... Food: Meat, salads, cross contamination... Water: Dr…
Escherichia coli info
G (-)rod... 4.64 MBP
28 terms
E. Coli
Enterotoxigenic E. coli
adenylcylase (makes cAMP)
Cl; Na
adhesion
E. coli that are not invasive, but produce toxins
heat labile enterotoxigenic E. coli stimulates ______________…
cAMP induces excretion of ________ and prevents absorption of…
Pilus antigens mediate ______________
Enterotoxigenic E. coli
E. coli that are not invasive, but produce toxins
adenylcylase (makes cAMP)
heat labile enterotoxigenic E. coli stimulates ______________…
E coli.
Defining Characteristics
Escheria Coli
Serotypes
O157:H7
GNR... glucose positive... fermenter... oxidase negative... no cyto…
Tribe: Escherichiaeae... Genera: Escherichia and Shigella (genet…
based on antigenic repertoire
associated with bloody diarrhea
Defining Characteristics
GNR... glucose positive... fermenter... oxidase negative... no cyto…
Escheria Coli
Tribe: Escherichiaeae... Genera: Escherichia and Shigella (genet…
E. coli
E. coli general characteristics
E. coli differentiation
Pathotypes
E. coli pathotypes of human importance…
Gram -ve... Bacilli (rods)... Facultative anaerobic... Most strains ar…
Serotypes = O and H Ag... - O = somatic... - H = flagella... Pathotyp…
Virulence factors - frank pathogens have these Ag
1. EnteroTOXIGENIC E. coli = ETEC... - Animal strain exists... 2. E…
E. coli general characteristics
Gram -ve... Bacilli (rods)... Facultative anaerobic... Most strains ar…
E. coli differentiation
Serotypes = O and H Ag... - O = somatic... - H = flagella... Pathotyp…
26 terms
E. coli
ETEC
EIEC
EPEC
EHEC
CP E. coli: "Rice-water" & traveler's diarrhea
CP E. coli: Dysentery
CP E. coli: Watery Diarrhea
CP E. coli: Grossly bloody diarrhea
ETEC
CP E. coli: "Rice-water" & traveler's diarrhea
EIEC
CP E. coli: Dysentery
E coli
E. coli General Properties
E. coli Diseases
Endotoxin
Exotoxin
-bacillus... -hardy, grows well in sample media... -facultative ana…
-Intestinal infections: most common... -UTI: 80% community acqui…
-cell associated substances that are structural components of…
-proteinaceous toxins excreted... -made by pathogenic strains... -S…
E. coli General Properties
-bacillus... -hardy, grows well in sample media... -facultative ana…
E. coli Diseases
-Intestinal infections: most common... -UTI: 80% community acqui…
28 terms
E. coli
Theodor Escheric
Non-pathogenic
Enteropathogenic
Enterotoxigenic
discovered E. coli
Biotype 1
EPEC
ETEC
Theodor Escheric
discovered E. coli
Non-pathogenic
Biotype 1
34 terms
E. coli
yellow colonies on ___ agar indicate l…
CLED agar is used to detect ___ produc…
E. coli is motile/immotile
What are the 3 parts of the LPS?
CLED
lactose
motile
inner core, lipid A, out variable polysaccharide (O antigen)
yellow colonies on ___ agar indicate l…
CLED
CLED agar is used to detect ___ produc…
lactose
24 terms
E coli
three types of infections caused by E.…
morphology of diarrheagenic E. coli
how is diarrheagenic E. coli transmitted
list the five virotypes of diarrheagen…
intestinal, uti, neonatal meningitis
Gram negative... Motile rod... facultative anaerobe
contaminated water
enterotoxigenic (ETEC)... enteroaggregative (EAgEC)... enteropathog…
three types of infections caused by E.…
intestinal, uti, neonatal meningitis
morphology of diarrheagenic E. coli
Gram negative... Motile rod... facultative anaerobe
E. coli
Basic characteristics
Major antigenic structures
Serotype
Types of pathogenic E. coli
- Lives in GI of warm blooded animals... - Lactose fermenting... -…
- O (somatic) serogroups... - H (flagellar) serovars... - K (capsul…
Combination of antigenic structures O, H, K.
- Enteropathogenic (EPEC)... - Enteroinvasive (EIEC)... - Enterotox…
Basic characteristics
- Lives in GI of warm blooded animals... - Lactose fermenting... -…
Major antigenic structures
- O (somatic) serogroups... - H (flagellar) serovars... - K (capsul…
32 terms
E. Coli
Normal Flora E. Coli
What type of anaerobes are found mostl…
Opportunistic/ ednogenous E Coli infec…
UTI isolates express several specific…
-E. coli is the most abundant facultative anaerobe in the nor…
A: strict obligate anaerobes... They outnumber the facultative a…
=opportunistic pathogens... -causes disease only when the body's…
-P pili (P blood group ags), allow it to grab hold of cell su…
Normal Flora E. Coli
-E. coli is the most abundant facultative anaerobe in the nor…
What type of anaerobes are found mostl…
A: strict obligate anaerobes... They outnumber the facultative a…
E. Coli
Enteroinvasive (EIEC)
Enteropathogenic (EPEC)
Shiga Toxin Producing (STEC)
Enterotoxigenic (ETEC)
invades intestinal epithelium, causing a disease similar to s…
colonizes the small intestine... -induces changes in actin filam…
colonizes the large intestine... -induces changes in actin filam…
colonizes the small intestine and produces toxins... -nearly ide…
Enteroinvasive (EIEC)
invades intestinal epithelium, causing a disease similar to s…
Enteropathogenic (EPEC)
colonizes the small intestine... -induces changes in actin filam…
55 terms
E.coli
E. coli O157
Escherichia strains possess specialize…
most E. coli that cause gastrointestin…
Most infections ;
is the most common cause of hemorrhagic colitis and hemolytic…
adhesins and exotoxins.
they have acquired specific virulence factors encoded on plas…
are endogenous
E. coli O157
is the most common cause of hemorrhagic colitis and hemolytic…
Escherichia strains possess specialize…
adhesins and exotoxins.
52 terms
E. Coli
E coli, salmonella, yersinia
proteus, klebsiella, enterobacter
gram negative
rods
major enterobacteriaceae pathogens
major enterobacteriaceae opportunistic pathogens
stain of E coli
morphology of E coli
E coli, salmonella, yersinia
major enterobacteriaceae pathogens
proteus, klebsiella, enterobacter
major enterobacteriaceae opportunistic pathogens
9 terms
E. Coli
Pili
Nucleoid
Ribosome
Flagella
Transports genetic information
Region where genetic information is
Location of protein synthesis
Allow for cell movement
Pili
Transports genetic information
Nucleoid
Region where genetic information is
16 terms
E. Coli
E.coli (location)
Enterobacteriaceae
Traits of all Enterobactereaceae
Enterobacteriaceae Antigens
Present in GI tract... Coliform counts from environmental sampl…
Gram-negative rods found primarily in colon... Major facultativ…
1) Facultative anaerobes... 2) Ferment glucose... 3) Cytochrome oxi…
1) O antigen... 2) H antigen... 3) K antigen
E.coli (location)
Present in GI tract... Coliform counts from environmental sampl…
Enterobacteriaceae
Gram-negative rods found primarily in colon... Major facultativ…
6 terms
E. Coli
Adhesion (process):
Adhesins:
3 types of E. Coli Pathogens (your sym…
How does gastroenteritis from enteroto…
Adhesions on the E. Coli BIND to Receptors on the GIEC
types): molecule that use to attach... Capsule... Flagella ... Pili
Enterotoxigenic: secrete toxin... Enteroinvasive : disrupts arch…
Enterotoxigenic: Releases toxin... Enter invasive : Invades the…
Adhesion (process):
Adhesions on the E. Coli BIND to Receptors on the GIEC
Adhesins:
types): molecule that use to attach... Capsule... Flagella ... Pili
9 terms
E. coli
E. coli classification
3 major E. coli infections
E. coli pathogenesis
Enterhemorrhagic E. coli
Gram negative rod lactose fermenter (fast); causes >80% of al…
1. Uropathogenic E. coli (UPEC)... 2. Enterotoxigenic E. coli (E…
Not normally pathogenic, but can pick up virulence genes via…
0157H7 infection; causes bloody diarrhea; hemorrhagic colit…
E. coli classification
Gram negative rod lactose fermenter (fast); causes >80% of al…
3 major E. coli infections
1. Uropathogenic E. coli (UPEC)... 2. Enterotoxigenic E. coli (E…
11 terms
E. coli
Types of E. coli
What are doctors most concerned with?
Lactose fermenters?
EHEC
EHEC... ETEC... EIEC... EPEC... EAEC... DAEC
EHEC
yes
-Has shiga like toxin ... -low ID 50 (10 cells)
Types of E. coli
EHEC... ETEC... EIEC... EPEC... EAEC... DAEC
What are doctors most concerned with?
EHEC
E. Coli
E. Coli Reservoirs
E. Coli Diseases
E. Coli Virotypes
Serogroup
-Humans ... -Animals
-Diarrhea... -Dysentary... -Kidney failure... -Bladder Infections... -Sep…
ETEC (enterotoxigenic)... EPEC (enteropathogenic)... EHEC (enterohe…
O antigen of LPS
E. Coli Reservoirs
-Humans ... -Animals
E. Coli Diseases
-Diarrhea... -Dysentary... -Kidney failure... -Bladder Infections... -Sep…
E. coli
E. coli
enterotoxigenic E coli (ETEC)
fimbrae/pili
heat labile toxin (LT)
enterobacteriaceae, motile gram neg bacteria, most are lactos…
generally mild, infants and travelers' disease, watery diarrh…
mediate adherence to small bowel enterocytes
toxin exported from e coli, triggers Gs > adenylate cyclase >…
E. coli
enterobacteriaceae, motile gram neg bacteria, most are lactos…
enterotoxigenic E coli (ETEC)
generally mild, infants and travelers' disease, watery diarrh…
E. Coli
What is E. coli?
What does E.coli do?
Types of E.coli
CM of E.Coli
-Strain of bacteria found in fecal matter of humans and anima…
-Creates a powerful toxin that damages linings in the body ca…
-Shinga toxin-producing (O157:H7); most common; most toxic... -e…
-may feel ill after one day or within a week of exposure... -Inf…
What is E. coli?
-Strain of bacteria found in fecal matter of humans and anima…
What does E.coli do?
-Creates a powerful toxin that damages linings in the body ca…
45 terms
E Coli
2 Categories of E coli
4 Types of diarrheagenic E coli discus…
What is the only E coli to fall into t…
T/F) STEC is a diarrheagenic E coli
Enterohemmorrhagic ... Diarrheagenic
EPEC - EnteroPathogenic... ETEC - EnteroToxigenic... EAEC - EnteroA…
STEC - ShigellaToxin E Coli
F. ... ST - shigella toxin E coli is the only enterohemmorrhagi…
2 Categories of E coli
Enterohemmorrhagic ... Diarrheagenic
4 Types of diarrheagenic E coli discus…
EPEC - EnteroPathogenic... ETEC - EnteroToxigenic... EAEC - EnteroA…
39 terms
e. coli
location of EPEC
location of ETEC
location of EHEC
location of EIEC
colonize small bowel (cause diarrhea)
colonize small bowel (cause diarrhea)
colonize large bowel
colonize large bowel
location of EPEC
colonize small bowel (cause diarrhea)
location of ETEC
colonize small bowel (cause diarrhea)
36 terms
E.Coli
which toxin is similar to cholera toxi…
what does ETEC ST activate
if both ETEC toxins are present what i…
what does EIEC attach to
A/B exotoxin comparable to Cholera toxin. ... GPCR is constituti…
A/B exotoxin comparable to Cholera toxin. ... ST Activates guany…
Cholera-like disease
Colon via fimbriae
which toxin is similar to cholera toxi…
A/B exotoxin comparable to Cholera toxin. ... GPCR is constituti…
what does ETEC ST activate
A/B exotoxin comparable to Cholera toxin. ... ST Activates guany…
E. Coli
EPEC
FEEC
eEHEC
EIEC
Enteropathogenic E.coli
Facultatively enteropathogenic E.coli
Enterohemorrhagic E.coli
Enteroinvasive E.coli
EPEC
Enteropathogenic E.coli
FEEC
Facultatively enteropathogenic E.coli
10 terms
E. coli
E. coli is
Function of E. coli
E. coli 0157:H7
Nature of disease
Gram negative... Bacilli... Enterobacteriaceae ... Part of normal flor…
Suppress harmful bacterial species ... Synthesizes vitamins
Produces potent toxins that damage lining of intestines ... Vero…
Hemorrhagic colitis ... Severe cramping... Diarrhea >Watery and the…
E. coli is
Gram negative... Bacilli... Enterobacteriaceae ... Part of normal flor…
Function of E. coli
Suppress harmful bacterial species ... Synthesizes vitamins
E. coli
affects neonates
susceptibility age-related
K99 and K88
toxins affect cGMP and cAMP in enteroc…
ETEC
ETEC
ETEC
ETEC
affects neonates
ETEC
susceptibility age-related
ETEC
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