Broadcaster: BBC1 & Sky News
Genre: News package
Should you complete a course of antibiotics or stop taking them as soon as you feel better? Received wisdom, and current policy, is that you ought to continue the course to ensure that the bacteria causing the problem have been eliminated. However, a new paper The antibiotic course has had its day in the British Medical Journal argues that there is no evidence base for the existing practice and, given the known correlation between exposure to antibiotics and the development of resistance, we ought – as a bare minimum – to be conducting appropriately-controlled trials to examine the impacts (good or bad) of recommending shorter treatment regimes.
The paper received a variety of coverage in both the print and broadcast media. The two links here are to discussion of the work on the BBC Six O’clock News (1, 2.2 mins) and Sky News (2, 2.4 mins). Both clips have their own merits, but if you want to pick one then, on this occasion, I’d go with the Sky News clip. Both packages include historical footage of Alexander Fleming, but the Sky piece has more thorough explanation of the arguments.
For further coverage see my Journal of the Left-Handed Biochemist post on the paper, and this article from the Daily Telegraph.
Broadcaster: BBC News
Genre: (1) News package, (2) Interview
Clip 1 (3 minutes) is a piece by Rebecca Morelle about plans to use IVF to try and save the Northern White Rhino of which there are believed to be only three specimens remaining. At the Longleat Safari Park in Wiltshire (UK), scientists are trying to pioneer rhino IVF as a mechanism for conserving the species. The less rare Southern Rhino is being used as a test model whilst developing the technique and could potentially be a surrogate mother for a Northern White Rhino baby or a hybrid between the two species. The package was shown in several news bulletins, this clip is actually taken from World News on BBC4.
Clip 2 (5.5 mins) from BBC Breakfast begins with a synopsis of the original piece, before a longer interview with Jon Merrington, heading up the project at Longleat. This interview was very helpful in explaining more of the plans and elaborating on the complications. For example, eggs to be harvested are located 1.5 metres within a female rhino, and gestation is 16-18 months. The remaining Northern Rhinos are an elderly male and two younger females, none of whom are capable of reproduction themselves.
Fascinating insights have emerged from recent studies of the brain. This episode of Horizon, first transmitted in 2009, is quite old now. However many of the insights remain highly pertinent and the work of Adrian Owen described in the programme continues to amaze (see also his new book Into The Grey Zone).
I actually wrote about this programme previously over at our sister site Bioethicsbytes, so rather than reiterate the key points here, please follow this link to original post.
Broadcaster: BBC News
In this episode of the BBC’s technology show Click the team investigate various cutting edge development in food production. They look at salad, “meatless” and lab-grown meat and other agricultural developments.
00:45-02:04 and 08:51-12:04 (in this file) Spencer Kelly looks into the work of Local Roots and other companies in production of salad plants. Using carefully controlled hydroponics in shipping containers, crops can be grown much more efficiently than out in the fields. The potential exists to set up the containers wherever needed, e.g. in an environment where conditions would be too extreme to grow plants in a traditional way, or to position them near supermarket distribution centres, reducing travel costs and environmental impact and bolstering freshness.
More than this, tweaking the conditions can improve the flavour of plants – for example altering the spicy flavour of basil by sustained exposure to blue light. The plant-related discussion moves on (12:04-14:00) to reflect on the ethics of small private companies taking the lead on this type of development. One concern is the limitation of any one small company being unlikely to have expertise in the range of different fields necessary for the best refinement of species growth. There are also worries about intellectual property rights. The MIT Open Agriculture Initiative (OpenAg) looks to develop foods in a copyright-free way, sharing the knowledge and even starter-kits for plant production.
05:51-08:50 Kat Hawkins investigates the work of Impossible Foods making artificial meat from plant material and added haem, which it turns out is a significant contributor to “meaty” flavour. She also talks to Finless Foods about growing fish tissue from stem cells and to Memphis Meats and others about lab-grown mean (which has been the subject of other posts on this site, e.g. here and here).
The programme also looks at measures to reduce food wastage (from 15:40) and Dutch innovation to make biodegradable cars (from 19:42) but these are less relevant to biology courses.