Białystok / London (IT BoltWise)-A new analysis of genetic data suggests that people with a genetic predisposition to attention deficit / hyperactivity disorder (ADHD) or autism spectrum disorder could have an increased risk of certain heart diseases. Research, which summarizes results from 14 different studies, indicates potential causal relationships between these neuro -development -related diseases and cardiovascular health.
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A current investigation of genetic data has shown that people with a genetic predisposition to ADHD or autism spectrum disorder may have an increased risk of certain heart diseases. This research, which summarizes results from 14 different studies, indicates potential causal relationships between these neuro -development -related diseases and cardiovascular health. The study was in the journal Cells published.
ADHD and autism spectrum disorder are both considered neuro-development-related diseases that typically occur early in the development of a person and are connected to the growth and function of the brain. ADHD is often characterized by patterns of inattentiveness, hyperactivity and impulsiveness, while autism spectrum disorder is characterized by differences in social communication and interaction as well as limited or repetitive behaviors and interests. For many years, doctors and researchers have observed that people with these diseases seem to have higher rates of cardiovascular diseases, but the reason for this connection has so far been unclear.
Earlier studies that showed this connection were mostly observing. They were able to determine a correlation, for example that adults with ADHD have a 20 percent prevalence of cardiovascular diseases. However, they could not prove that one disease causes the other. The relationship could be explained by other factors known as disruptive factors. For example, living habits, stress levels or the side effects of medication could contribute to heart problems, which makes it difficult to isolate the direct influence of neuro -development -related illness itself.
In order to get closer to causality, researchers under the direction of Piotr Ryszkiewicz from the Medical University of Białystok in Poland carried out a new type of analysis. Their goal was to investigate whether the genetic factors that increase the risk of these neuro -development -related diseases also increase the risk of heart diseases.
The researchers carried out a systematic review and meta-analysis of studies that used a method called Mendel’s randomization. This technology uses genetic information to examine causal relationships between a risk factor and a health result. The method is based on the principle that genetic variants randomly passed on to their descendants by the parents, similar to participants in a clinical study by chance.
By using genetic variants that are connected to a certain disease such as ADHD, scientists can determine whether these same variants are also associated with a result such as heart failure. If a connection is found, this provides greater evidence of a causal connection, since the genetic equipment of a person is not influenced by lifestyle or other environmental factors.
Ryszkiewicz and his colleagues searched three large scientific databases for all existing studies on the Mendelian randomization, which examined the connections between ADHD, autism spectrum disorder and various cardiovascular diseases. They identified 14 studies that met their criteria. The team then extracted the data from these studies and evaluated their methodological quality to ensure that the results were reliable. They analyzed the data in two directions: First, whether the genetic predisposition for a neuro -development -related disease influenced the risk of heart disease, and secondly, whether the genetic assessment of heart diseases influenced the risk of neuro -development -related disease.
The combined analysis resulted in several significant genetic connections. A genetic predisposition to ADHD was associated with an increased risk of developing coronary heart disease, heart failure and several forms of strokes. In particular, the data indicated a greater probability for any stroke, ischemic stroke and great artery atherosclerotic strokes in people with the genetic markers for ADHD. This suggests that the biological paths associated with ADHD can contribute directly to the development of these serious cardiovascular problems.
The results for the autism spectrum disorder showed a different but also worrying pattern. A genetic predisposition to autism spectrum disorder was more likely to be associated with a kind of irregular heartbeat, and heart failure. The analysis was not a genetic connection between autism spectrum disorder and stroke or coronary heart disease.
When the researchers examined the relationship in the other direction, they found a remarkable connection. A genetic predisposition to atrial fibrillation was associated with an increased risk of developing ADHD. The analysis did not show that high blood pressure or high blood pressure had a genetic connection to ADHD or autism spectrum disorder.
The authors of the study pointed out some restrictions on their work. The number of studies available for the analysis was low for some of the specific comparisons, which means that some conclusions should be interpreted with caution until further research is carried out. Another significant restriction is that most of the genetic data came from studies by people of European descent. This makes it unsure whether the results can be generalized to people for other ethnic backgrounds. In addition, many of the analyzed studies did not carry out any power calculations that are used to determine whether a study is large enough to recognize a real effect.
Future research should aim to disguise the specific biological mechanisms that combine the genes for these neuro -development -related diseases with cardiovascular health. Understanding these paths could lead to better prevention and treatment strategies.
The current results suggest that clinicians should consider cardiovascular risk assessment as part of the routine care of people with ADHD and autism spectrum disorder. Early monitoring and intervention in relation to lifestyle factors such as nutrition and exercise could play an important role in the long -term health administration of people with these diseases. Research also emphasizes the need for further studies to examine these bidirectional relationships, in particular how certain types of cardiovascular diseases could affect the risk of developing neuro-development-related diseases.
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