World AIDS Day takes place annually on 1 December as an opportunity for people worldwide to unite in the fight against HIV and to show support for people living with HIV/AIDS.
To mark World AIDS Day 2017, we have published a series of blog posts to highlight the important and varied research that takes places at Imperial. Three experts from Faculty of Medicine share their interest in HIV/AIDS which spans from the elusive vaccine to the economics of the epidemic.
Where are we in the battle against HIV/AIDS?
The past thirty years have seen enormous gains. We’ve seen the development of highly effective therapy that today can ensure the health of an HIV positive individual for rest of their natural lifespan. We used to speak of HIV/AIDS as if they were the same thing, now you can be HIV positive and never develop AIDS (Acquired Immunodeficiency Syndrome). Globally over 18 million people are now receiving life-saving drugs, preventing millions of deaths each year. Treatment also dramatically reduces the risk of passing on the infection. Excitingly, recent studies have shown that taking a daily pill (known as pre-exposure prophylaxis or PrEP) can prevent people from contracting HIV infection and this is now being made available in the UK.
However, significant challenges lie ahead
Treatment is for life and is not a cure; we are currently unable to eradicate the virus once someone has been infected. As many as a third of individuals infected with HIV are unaware that they have contracted the virus and late diagnosis significantly impacts on the benefit of available treatments. While great strides have been made to make global treatment accessible, only half of those currently infected are accessing treatment and for every individual starting treatment, one or two people are newly infected. This means that the population requiring life-long medication will continue to expand with associated pressure on global financial resources and already stretched health systems. (more…)
Most of us are aware that chronic, heavy alcohol consumption and binge drinking leads to a plethora of health issues including liver damage and addiction. However, many of us are still unaware of the dangers associated with even moderate alcohol consumption or the cumulative effects that alcohol can have on our health. So just what are those regular trips to the pub, or the frequent cocktails after work really costing us?
Research into effects of alcohol provide a range of results. Some research (funded by the alcohol industry) has even been claimed to demonstrate that alcohol consumption is actually beneficial to our physiological health. Conversely the International Agency for Research into Cancer has demonstrated that the more alcohol you drink directly increases the risk of seven common cancers including: mouth, throat, oesophageal, larynx, breast, liver and bowel.
Similarly, new research published in the British Medical Journal has revealed a potential link between moderate drinking and shrinkage of the hippocampus, a brain region associated with memory. These results suggest a link between moderate alcohol consumption and a potentially permanent alteration in brain structure. (more…)
As a young girl I spent many long afternoons in piano lessons.
Years later, I remember very little from the lessons – but I do vividly remember the teacher. She was very strict, had hair like candy floss and a severe hunch. She always made the lessons run long, but she would give me a chocolate bar if I helped her hang out her washing afterwards. She needed my help because she couldn’t reach the washing line anymore. One day I asked my mum why she had a hunched back and she told me it was because she had osteoporosis. At the time I didn’t really comprehend what that meant, but I knew it wasn’t good. One day she fell and broke her hip, and sadly, not long after that she passed away. As you read my story, I am sure it sounds familiar to a lot of you. Maybe not with a piano teacher, but with a relative, family friend or neighbour. The reason I say that is due to the rising prevalence of osteoporosis – one in three women and one in five men over the age of 50 are affected. (more…)
For the last 10 years I have been a clinical scientist in genetics working across various London NHS Trusts. Whilst I loved diagnostics, last year I left my job to complete my PhD. I worked in a part of life sciences called cytogenetics. This meant when a patient was diagnosed with blood cancer, I would analyse their chromosomes – the structures into which DNA is organised – from their blood or bone marrow to look for specific abnormalities. For some patients, this can lead to a definitive diagnosis. For others a refined prognosis, and in some, it’s simply a way of monitoring how well the patient’s leukaemia is responding to their treatment.
Blood cancer can be very straightforward to diagnose and it was perfectly possible to provide genetic confirmation of a blood cancer diagnosis in a matter of hours. For example, in patients with chronic myeloid leukaemia (CML), I would find a particular abnormality called a Philadelphia translocation between chromosomes 9 and 22. Finding this translocation means a patient will benefit from a targeted therapy – called a tyrosine kinase inhibitor (TKI) – which reverses the effect of the translocation with relatively few side effects. TKIs are a tablet taken once or twice a day at home. Compared to chemotherapy, TKIs have revolutionised the treatment and outcomes of CML, which has been life-changing for CML patients. It was always satisfying to call the referring clinician and let them know their patient had a Philadelphia translocation because I knew that would set the wheels in motion for a TKI to be prescribed. Ultimately I knew I had made a difference to a patient on those days. (more…)
I started working with young people with attention deficit hyperactivity disorder 25 years ago. Over the years, our knowledge and understanding of ADHD has come a long way – mostly down to scientific research – taking the condition from a relatively unheard one to a household one. Too often, we associate ADHD with children, however it’s now recognised to be a lifetime condition with many undiagnosed adults continuing to experience symptoms throughout their lives, despite the abundance of international guidelines on the assessment, treatment and management of ADHD. With many young people reaching adulthood with undiagnosed ADHD, or even misdiagnosed, they will not receive the optimal treatment for their symptoms and associated problems. Unfortunately, many will not reach their potential, and for some, they feel their future is bleak.
It doesn’t have to be this way. The good news is that there are large treatment effects for ADHD interventions and one can intervene at any age. However, early intervention is key if children with ADHD are to mature into confident young adults who experience good mental wellbeing and can effectively plan and organise their lives. I’ve always believed that we should be providing early intervention programmes that work directly with the child as well as those involved in their care and education. Hence, drawing on cognitive behavioural therapy (CBT) – a technique commonly used for phobias, depression and bipolar – I developed the ‘Helping Children with ADHD’ individual treatment and ‘The STAR Detective’ group intervention to provide life skills to children, their parents/carers and others involved in their care. (more…)
Leuka is a charity that supports life-saving research into the causes and treatment of leukaemia and other blood cancers. Funding from dedicated charities such as Leuka provides an important source of support which enables high-quality research programmes here at Imperial to develop and progress. In this post, four Imperial researchers write about the different ways in which Leuka has supported their work at the College.
Dr Nichola Cooper and Dr Andy Porter on lymphocyte mutations
Lymphocytes are immune cells designed to recognise and fight infections, as well as to seek and destroy cancer cells. In order to create the diversity required to recognise and kill all possible infections, lymphocytes undergo an elaborate diversification process involving changes to genes, such as rearrangement, mutation and selection.
Sometimes, diversification can produce lymphocytes that mistake the body’s own cells (self-cells) as invaders. To prevent such lymphocytes from killing self-cells, which would result in the immune system attacking its own healthy tissues (autoimmunity), another elaborate process has evolved that either kills these autoreactive lymphocytes, or keeps them in check through regulation.
Together these diversification and regulatory processes allow lymphocytes to distinguish between harmful infections and the body’s own vital cells, involving many different genes. Defects in these genes, called mutations, can lead to reduced immunity, autoimmunity or uncontrolled reproduction of lymphocytes resulting in cancerous immune cells (lymphoma). (more…)
Dr (John) Tregoning and Dr (Charlie) Tregoning discuss roadblocks and solutions to equality in childcare.
We have as a couple, tried and sometimes succeeded but most often failed to share parenting fairly. Drawing from our own experience and a very shallow skim read of how to books, here are what we consider to be some of the major problems to equality at home as two working parents and some possible solutions. This is not to say every parent should go back to work; do what is best for your own family, but remember to be honest with yourself about what you really want and include yourself in the ‘what is best for my family’ calculation.
What society wants
Since the introduction of split parental leave in the UK in 2015, only 1% of fathers have taken it (based on 2015/16 figures). Why is this? Societal expectations are the major barrier to equality in childcare (in 2014 – 33% of people thought mums should stay at home compared to essentially 0% who thought dads should stay home: the flipside 73% thought dads should work full time and 28% thought mums should work full time – but only after the kids go to school). Going against the societal norm is tricky and requires reserves of energy, time and self-belief that you are doing the right thing. When the right thing is also difficult and financially unrewarding these reserves can be depleted, eroding your will. (more…)