Gastrointestinal disease Flashcards
What non-invasive test for helicobacter has been described?
C-urea blood/urine
What can cause false positive CPV-2 ELISA results?
Recent vaccination
Which campylobacter species have been associated with disease?
Jejuni and coli
Which clostridia species have been associated with diarrhoea in dogs and cats? What toxins do they produce?
Difficile - toxin A (enterotoxin), toxin B (cytotoxin)
Perfringens - CPE
Where is heterobilharzia americana seen? What disease does it cause?
Louisiana and Texas
Schistosomiasis
How is heterobilharzia americana diagnosed?
Sodium chloride flotation sedimentation
PCR
How is folate absorbed?
Folate polyglutamate deconjugated by folate deconjugase into folate monoglutamate
Absorbed by receptors in proximal small intestine
What is calprotectin?
Marker of neutrophilic inflammation
What is a marker of a) mast cell degranulation and b?eosinophil acticity
a) Methylhistamine
b) Brominated tyrosine
What salivary glands are present in dogs/cats?
Major - parotid, zygomatic, mandibular, sublingual
Minor (cats only) - lingual molar gland
Which muscles possess 2M fibres?
Temporal, masseter, medial and lateral pterygoid
Which salivary gland is most commonly affected by sialadenitis?
Zygomatic
What conditions are associated with pharyngeal weakness?
Morphological abnormalities - infection, inflammation, trauma, neoplasia, UES obstruction
Functional causes - myasthenia, muscular dystrophy, polymyositis, hypothyroidism, cranial nerve neuropathy
What forms of cricopharyngeal dysphagia are recognised?
Congenital/acquired
Achalasia - failure to relax
Asynchrony - lack of coordination
How is cricopharyngeal achalasia treated?
Surgical myotomy or myectomy of the cricopharyngeal muscle
Botulinum toxin injection
How is cricopharyngeal asynchrony treated?
Less evidence. Case report of myectomy
What treatments have been shown to reduce the risk of reformation after balloon dilation of oesophageal strictures?
Triamcinolone
Topical mitomycin C
Which breeds are associated with vascular ring anomalies?
GSD and Irish Setters
What are the most common oesophageal neoplasms in dogs? what is a risk factor for their formation?
Osteosarcoma/fibrosarcoma
Transformation of granules associated with Spirocerca lupi
What is the most common oesophageal tumour in cats?
SCC
How are oesophageal granulomas associated with spirocerca lupin treated?
Doramectin (SC or oral)
What types of oesophageal diverticula are recognised?
Pulsion - secondary to increased intraluminal pressure
Traction - secondary to peri-oesophageal inflammation
What conditions are associated with acquired megaoesophagus?
Myasthenia, hypoadrenocorticism, lupus myositis, polymyopathies, polyneuropathies, dysautonomia, lead poisoning, severe oesophagitis
Diarrhoea ddx
Ettinger pg 1517
What hormone stimulates migrating my-electric complexes?
Motilin
What is the function of TLR2?
Recognise gram-ve lipoprotein
What is the function of TLR4?
Recognise gram -ve lipopolysacharide
What is the function of TLR5?
Recognise bacterial flagellae
What is the function of NOD2?
Recognises bacterial lipopolysaccharide
What is the function of Th-1 cells? What cytokines do they produce?
IL-2/IFN-gamma
Activation of CD8 cytotoxic T cells
What is the function of Th-2 cells? What cytokines do they produce?
IL-4, IL-5, IL-6 and IL-13
B-cell activation
What is the function of Th-17 cells? What cytokines do they produce?
IL-17
Inflammatory response