Scientia - Issue 6 (April 2021)

Page 12

BIOLOGY that obesity is not just one disease - it encourages endless damage to the body. Obesity increases the risk of type 2 diabetes, hypercholesterolemia, atherosclerosis and high blood pressure. Within the UK, around 1 in 160,000 people have BBS, which adds to the worrying danger of the estimated 28% obese UK adults.[3][4] Prader-Willi Syndrome (PWS) Another genetic disorder that can prove a lifetime of struggle with obesity is Prader-Willi syndrome. PWS is caused by a loss of specific genes on chromosome 15. It starts in childhood and newborns may present with weak muscles, poor feeding and slow development. Those affected become constantly hungry, leading to obesity and type 2 diabetes. There is a noticeable physical difference since sufferers often having a narrow forehead, small hands and feet and can be short in height too, alongside the impact of obesity. Most sufferers, as adults, are unable to have children. About 74% of cases occur when part of chromosome 15 from the Facial features presented with Prader-Willi father is deleted. In another 25% of cases, the affected person Syndrome. has two copies of the maternal chromosome 15 and lacks the paternal copy. They end up with no working copies of certain genes. PWS is not generally inherited, but rather the genetic changes happen during the formation of the gametes or in early development. Unfortunately, the disease affects between 1 in 10,000 to 30,000 people worldwide. Treatment Both diseases have no cure. However, the symptoms can be managed. BBS patients can be provided with vision aids and mobility training, they can have speech therapy and special education and monitored hormone levels. It is assumed that patients can have a kidney transplant to manage BBS, but the immunosuppressants taken afterwards can contribute to obesity, making it very risky. In PWS, new-borns can be supported with feeding tubes, strict food supervision from age three, and they will often have an exercise program. Growth hormone therapy can improve outcomes too. Life expectancy is limited with PWS, as there is a 75% mortality rate for 42 year olds with the disease. This is worsened when food intake and exercise activity is not managed appropriately since weight levels can become dangerously high and there is a higher chance of having heart issues [5][6]. When their quality of life is also low, due to inability to lead a fully-independent life even as an adult, PWS patients may be impacted in all areas of their lives. BBS also gives a high mortality rate, but with the development of both genetic technology and treatments, it is hoped that life expectancy for sufferers of both diseases will improve over time. Conclusion It is readily apparent from this that obesity can affect anyone, no matter the speed of your metabolism, the amount of exercise one does, or other factors in your life. This is because the slightest genetic mutations and variations of proteins from proteins that we all have can trigger such a great effect on the body. Whilst the chances are so low for both these types of variations like seen in FTO and genetic disorders such as BBS and PWS, it is essential that we are aware of these signs, and that we know the right ways to take care of our bodies with sufficient exercise and careful monitoring of our food intake. Sources: 1. 2.

https://en.wikipedia.org/wiki/FTO_gene https://en.wikipedia.org/wiki/Bardet–Biedl_syndrome

13


Turn static files into dynamic content formats.

Create a flipbook
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.