gut schema
Gut microbiota
an interface between health and disease
Human body hosts:
1-2 kg
100 x more bacterial genes than human DNA!
10 x microbial cells than human cells
Increase in number and diversity
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Lactobacillus, Veillonella, Helicobacter
Stomach (10e1 cfu/g)
Duodenum (10e3 cfu/g)
Ileum (10e7 cfu/g)
Jujenum (10e4 cfu/g)
Bacilli Streptococcaceae Actinobacteria Actinomycinaeae Corynebacteriaceae
Colon (10e12 cfu/g)
Lachnospiraceae Bacteroidetes
related diseases :
- Health status,
- Gestational age,
- Mode of birth delivery,
- Diet,
- Antibiotic treatment,
- Environment and lifestyle,
- Host genetics,
Influencing factors :
- Inflammatory bowel disease,
- Obesity,
- Diabetes,
- Liver disease,
- Pancreatitis,
- Allergy,
- Atherosclerosis,
- Cancer,
- Autism,

Exploring the role of gut microbiota in health and disease

Welcome to the Hammami Lab Home Page. We are located at School of Nutrition Sciences, Faculty of Health Sciences, University of Ottawa (Ottawa, Canada).

Our research program is focused on dissecting the role of microbiota as partner for human gastrointestinal defense. We aim to identify impact of external factors, diet and other environmental stimuli on microbiota composition. Our goal is to modulate the gut microbiota using probiotics and antimicrobials in a way that will benefit host health. For opportunities to join the lab, please visit the Join us page.