Graduate Student Seminar - Efrah Yousuf & Devanjith Ganepola

student presentations-2021-04-01


Start 1 April, 2021, 12 PM

End 1 PM





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Exploring the gut microbiota of preterm and full term infants

Speaker: Efrah Yousuf, PhD. Candidate

Efrah is completing a PhD in the Medical Sciences program at McMaster University, under the supervision of Dr. Katherine Morrison. She obtained her BSc in Bio-Medical Science from the University of Guelph. Her research interests include the exploration of growth and body composition in infants and the influence of early life exposures on the development of the infant gut microbiota.


  1. Provide an overview of the development of the infant gut microbiota.
  2. Discuss the role of prematurity on gut microbiota development and the
    use of probiotics in preterm cohorts.
  3. Share findings from the Baby & Mi and Baby & Pre-Mi studies
    comparing the full term and preterm gut microbiota during the first year
    of life.

Quantification of Urine Organic Acids through Atmospheric Pressure
Chemical Ionization Gas Chromatography Mass Spectrometry (APCI-GC-MS)

Speaker: Devanjith Ganepola, MSc. Candidate

Devanjith is a recent graduate from McMaster University in 2020 where he
received his B.Sc (Honours) in Chemical Biology. He is currently completing his MSc in the laboratory of Dr. Murray Potter in the Medical Science Program at McMaster. Pursuing his passion for chemistry and its application in a medical setting, his thesis is focused on adapting existing GC-MS methods to APGC-MS to determine inborn errors in metabolism of newborn patients.


  1. Recognize the importance of UOA (Urine Organic Acid) analysis for the detection of genetic diseases in newborn screening
  2. Describe the basic mechanism of APGC (Atmospheric Pressure Gas Chromatography)
  3. Understand and explain how APGC could potential be the new gold standard detection method for UOA analysis

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