Showing posts with label chromosome 12. Show all posts
Showing posts with label chromosome 12. Show all posts

Monday, March 22, 2021

Caveman Have the Advantage Against COVID-19

 


COVID-19 is still wreaking havoc in the lives of everyone across the world. A big question has been how some people can be asymptomatic or have minor symptoms while others are dying from the same virus. Recent discoveries can prove to have these answers in our ancestor’s DNA. Scientists studying Neandertals have found that chromosome 12 may be the answer. The haplotype, known as a cluster of genetic variants, that are inherited together, has seen to affect the risk of having an intervention with intensive care. In the research presented by Hugo Zeberg and Svante PaaBo, It was discovered to have a 22% decrease in becoming super sick when infected by COVID-19. Infections due to RNA viruses, in this region, encodes for proteins that activate enzymes on chromosome 12 to deal with such viruses. This chromosome helps protects from severe diseases.

In contrast, it also has been seen that chromosome 3 had the opposite effect. It carries having a higher risk for diseases, especially the SARS-CoV-2. Trends have shown an increase in the Neandertal haplotype increasing in the past 20,000 years as well as the past 1,000 years. If the haplotype on chromosome 3 is present, there is almost double the risk of becoming seriously infected with COVID-19. It has been seen that 65% of the Southern Asian population carries the haplotype and 16% in Europe of chromosome 3.

Chromosome 12 haplotype is effective in destroying the COVID-19 because it destroys the viral RNA by having the variants affect the function of genes that result in a biochemical chain reaction. Unfortunately, not many people in Africa carry the genes retrieved from the Neanderthals, but they can be subsequently traced to all parts of the world other than in Africa primarily.  It would be noteworthy to see the trends in how many people needed medical intervention when battling this disease. Just seeing it in everyday life is a possibility because the U.S. has had so many cases of people dying. Other than the fact that we have dense populations in cities, but also because in these cities we have a melting pot of people with different genetics, as well as all over the United States. 

When reading over this study I found it quite interesting to have a link to a burning question I have had, since this all started. Back when COVID-19 lockdown just started my mom had it very bad. We also know a ton of people that have not had many symptoms. This could be the answer as to why my mom had it so horribly. In her case, the bigger question is did she get it so badly to due prior hindering medical conditions or is it genetics.

https://www.pnas.org/content/118/9/e2026309118

https://www.sciencenews.org/article/covid-19-coronavirus-neandertal-genes-risk-severe-infection


https://www.sciencenews.org/article/coronavirus-some-neandertal-genes-protection-severe-covid-19

Saturday, September 30, 2017

Research found linking anorexia nervosa with genetic abnormality

Image result for anorexia nervosa chromosome 12
An article on Science Daily states the recent discovery that links anorexia nervosa with a genetic abnormality. People suffering from the disease were tested and the locus was on chromosome 12. Genetic connections between anorexia and a plethora of other mental illnesses were found during the research. The research also concluded that anorexia nervosa is correlated with BMI and metabolism. Which concludes that anorexia nervosa is not just a mental illness but also has metabolic origin. This new finding will hopefully yield a treatment for anorexia nervosa.
I believe this new discovery is extraordinary because it will spark interest in other scientists to continue studying the disease. Anorexia is a deadly mental illness that affects the lives of many people. Therefore, it is a reassuring that steps are being taken to find out more about the disease. New studies and discoveries will possibly generate a treatment or medicine for anorexia. I think it is incredible that a chromosome anomaly is the culprit behind the disease because now those suffering with the disease can be better helped and understood.
https://www.sciencedaily.com/releases/2017/05/170512081332.htm
https://www.news-medical.net/news/20170612/Anorexia-nervosa-linked-to-genetic-anomalies-on-chromosome-12.aspx