University of Ghana

Between settling into a new city and new lab, our first week in Ghana has been extremely busy! After our arrival last Friday, we were able to take a little break from science and become accustomed to our new surroundings over the weekend. We explored a big market, called Kaneshie market, near where we live, and have also found several places near the International Student’s Hostel, where we’re staying, to buy food. Our hostel had a communal kitchen that we can cook in, and  have had some successful and delicious dinners of rice and cooked vegetables.

Our first full day in lab was this past Monday, and we got a tour of the University of Ghana’s Microbiology Department. Our lab is extremely nice, and our hosts have done a wonderful job of making sure that we have everything that we need.

The front of the microbiology building

Marina, Nora and I working at our bench in lab

Catherine and Nora working at the bench

So far, we’ve been able to get lots of work done and haven’t encountered too many problems. We have lots of different PCRs to run on many different samples, so hopefully we’ll be able to get all the data gathered during our time here. Also, it seems so far that our A6 cells are alive, though they are growing slowly. Hopefully we’ll be able to have a happy culture of cells growing soon.

We made it! The flight was approximately nine hours, and unfortunately we weren’t able to sit with each other, but we made it safely. Today we’re mostly meeting new people and seeing the labs that we’ll be working in. Even though we were all tired and groggy, one of the first things we had to do after arrival was head to lab to make sure that our cells were alive. We have high hopes that they will be fine, since the luggage was able to keep all our flasks cold. Right now, however, I think we’ll be in search of some food, and then maybe settle into our housing at the International Students Hostel. We’ll update more soon!

Marina, Nora, and Catherine working in the Haverford lab.

With only nine days left before we fly to Accra, everyone is working hard to prepare for our time at the University of Ghana. Nora, Marina, and Catherine have been analyzing wild type strains of E. coli from Nigeria with a technique called Polymerase Chain Reaction, or PCR.  PCR is an extremely helpful tool for molecular biology research, since it allows for researchers to determine genes contained within strains of E. coli. We’ll use PCR to detect different categories of E. coli and the resistance genes within those strains. However, PCR requires particular conditions in order to work, so a lot of time can be spent troubleshooting so that the PCR will give accurate and reliable results.  Fortunately, things have been going well so far.

A standard hood for tissue culture at Haverford.

My project, with the A6 cells from Xenopus, is also going well so far. Maintaining tissue cultures isn’t too difficult, but it’s critical that everything remains sterile so that the cells do not become contaminated. Contamination is a lot easier to prevent, however, when one has the proper equipment. We’re lucky enough to have large tissue culture hoods with ventilation to prevent unwanted microbes interfering with our cells. In Ghana, we won’t have these types of hoods, and instead will work in smaller, wooden cabinets with a glass front.

There’s a lot still to do, both in and outside the lab. Since we’re going to West Africa, we’ve all had to acquire the necessary vaccines, anti-malarial pills, and visas (and our visas have just arrived safely!). Fortunately, our science center helped us obtain our visas and plane tickets. Now all we have to do is finish familiarizing ourselves with necessary techniques for lab, and pack!

Nora, Laura, Catherine, and Marina in lab at Haverford

Hi, everyone! Welcome to our blog and very first post. We’re very excited about this project and are looking forward to beginning work in Ghana. The four of us are currently at Haverford and are already  running experiments. Catherine, Marina, and I (Nora) are new to Professor Iruka Okeke’s lab, and so we are getting used to E. coli and the new protocols. Laura conducted her senior research in Iruka’s lab, so is familiar with everything and is helping us get adjusted. We will leave for Accra, Ghana on June 17th. Before our departure, we plan to get started on our projects and run through the molecular microbiology workshop that we will help to teach to university students while in Ghana.

Before going any further, it would be helpful to know exactly what we’re doing! The four of us are working on two separate projects, both of which have to do with the bacterium E. coli. (Click here for a brief overview of this incredible and well-studied organism.) Laura will be spearheading a very exciting project and introducing a new cell line to the lab in Ghana, which comes from a frog species known as Xenopus laevis, another model organism. These cells are used to detect different kinds of diarrhea-causing E. coli (not all types are harmful). In the US, human cells are typically used for these tests, but require special conditions for maintenance which are not available in resource-poor settings such as Ghana. Introducing the frog cell line will allow Ghanaian scientists to perform these tests and differentiate between E. coli types, allowing for more effective and specific treatment.

The second project we’re working on is a bit more complicated. Iruka’s colleague in Ghana, Mr. Opintan, has collected several hundred samples of E. coli (from workers in the food-industry who are required to be tested for Salmonella infection) that we will work with. We will test these samples both for resistance to antibiotics and for pathogenicity, or the ability to cause disease. We are mainly interested in tracking the presence of a resistance gene located on a plasmid– a small ring of DNA separate from the chromosome that is easily transferred between bacteria cells. Last year, Laura and Amy Labar ’10 went with Iruka to Nigeria, where they performed similar experiments. They found a high prevalence of the resistance gene in pathogenic E. coli in samples collected in Nigeria, and comparing these results to what we find in Ghana will give us a clue to the regional distribution of E. coli resistance.

Together with the frog cell line, these studies will hopefully help scientists and health workers detect and provide better treatment for diarrhea caused by E. coli, which remains a leading cause of death in young children.

Catherine Smith ’11, Marina Zambrotta ’11, Nora Proops ’10 and Laura VanArendonk ’10 will be visiting the Department of Medical Microbiology, University of Ghana. They will be applying skills they gained in Superlab (Bio300) and their senior research experiences to laboratory research there in an on-going collaborative study by Iruka Okeke (HC), Professor Mercy Newman (UGMS) and Japheth Opintan (UGMS).