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conflict resolution Depression genetic disease pathologizing

Is Depression a Genetic Disease?

Millions of people experience one or more episodes of depression during their lifetime. At such times, many fear that if news of this were to get out it would diminish the level of respect people have for them. Attempting to avoid the stigma of being viewed as having a mental illness, they shy away from revealing what they are experiencing.

Some promote the idea that depression is a disease with genetic factors playing an important role in its development. This line of thinking is theorized to reduce stigma because it reduces any blame for the person who is having the experience. But others say that promoting the idea that this group of people have faulty genes will actually increase stigma even if it does reduce blame.

With this as background, let’s take a look at the research regarding the genetic influence on depression. Then I’ll chime in on how I think we can better help to reduce stigma for people who become depressed.

Research Study

On April 4, 2017, Molecular Psychiatry published an article titled, “Collaborative meta-analysis finds no evidence of a strong interaction between stress and 5-HTTLPR genotype contributing to the development of depression.”

Peter Simons

A couple of weeks later, Peter Simons, writing for the excellent website, Mad in America, summarized the research article, making it far more accessible to the average reader. It can be retrieved from the internet for free HERE. I heartily recommend it.

Photo credit: Pixabay

Very briefly, Peter Simons explains that after many failed attempts by researchers to find a genetic basis for depressed mood, a 2003 study claimed to have discovered a link between depression and a genotype known as 5-HTTLPR.

The 2003 study has earned a celebrity status in the literature on genetics and psychiatry, having been cited over 4000 times. However, it has also been the subject of controversy. Researchers have noted that studies finding such powerful genetic effects often turn out to be false positives. Indeed, the conclusions of the 2003 study have been questioned by numerous researchers who failed to replicate their initial result.”

The current study attempted to replicate the initial findings with a large sample of over 38,000 people of European ancestry, using methods that are viewed as “rigorous best practices.” The team of researchers involved in the study found that the presence of the 5-HTTLPR genotype did not increase a risk of depression, even in those who experienced significant life stressors and traumatic events. However, as expected, stress and trauma by themselves were strongly associated with the development of depression.

Peter Simons adds that the researchers also wanted to determine if a particular subgroup of people might be at increased risk of depression when they had the 5-HTTLPR genotype, even though they found no such effect for the general population.

“They conducted further analyses and found that there were no subgroups for whom this genetic basis of depression was significant. That is, the researchers were unable to find a single group for whom this genetic component plays a role. Instead, their data confirmed yet again the most consistent finding in depression literature–stress and trauma are strongly linked with depressive symptoms, and genetics are not.”

If We Can’t Blame It On Genetics, How Else Can We Seek to Reduce Stigma?

As we have seen above, the argument that depression is a genetic disease currently has little scientific support. Nevertheless, there are people who will continue to insist that it is due to genetics because some research indicates that if you have family members who experience depression, you are at an increased risk of also having this type of experience.

One of the difficulties in interpreting this line of research has to do with the plain fact that we all experience a good deal of suffering in our lives. Where are we to draw the line between those who are experiencing the usual amount of suffering given their life circumstances and those who are experiencing more than the usual amount?

As someone who is familiar with how this line is drawn in practice, I can say with confidence that it is pretty blurry. Moreover, just because some human characteristic runs in families does not mean that those with that characteristic have a disease or illness. I have seen research that creativity, musical talent, athleticism, shyness, risk taking, political affiliation, and many other characteristics as well, run in families. Are all such characteristics to be viewed as diseases?

Some view people who are prone to have depression experiences as having an artistic temperament. Many learn to appreciate these visits of melancholy as something of extraordinary valueWilliam James. Thus, in an earlier post titled William James’s Personal Bout With a “Mental Disorder,” we looked at how the brilliant psychologist and philosopher came to view his “bass notes of experience.” On this subject, he wrote that many so called “healthy-minded” individuals believe that those who worry are “morbid-minded” and “diseased,” but it may very well be true that “the world’s meaning most comes home to us when we lay them most to heart.”

Some argue that what makes depression a disease is that it is a risk factor for reduced productivity and suicide. There are many examples of people who, when they become depressed, take to their beds for a period of time. And indeed, some people who become depressed, though not most, will violently end their lives.

To get some community and government support for people as they go through these wrenching experiences of depression, currently we have to, for bureaucratic reasons, treat depression as if it is an illness. I am not seeking to eliminate this support, though I bemoan the fact that for many the only support that is offered is a prescription for drugs which I believe in the long run leads to far more harm then good.

In principle, there really is no necessity to provide support only for people who are deemed ill. Communities and governmental agencies have long provided support for people who have suffered from floods, drought, fire damage, and poverty. I believe it would be more helpful to offer support to people who become bed-ridden or suicidal without pathologizing.

To counter stigmatizing these individuals, it is far better than pathologizing their experience if we focus on pointing to the numerous examples of people, such as Abraham Lincoln, who suffered deeply from depression experiences, and yet made enormous contributions to our society. Equally important is to explain that simply being at an increased risk for something doesn’t mean someone has a disease. Risk takers, such as the Wright brothers, are well known to be at an increased risk of an early death, but that characteristic allows some folks to bravely enter into a tiny capsule to explore the moon.

We need a variety of people to do great things, and indeed some of these varieties are riskier than others. Nevertheless, it is misleading to place them in the disease category. It is high time that we diminished respect for converting more and more basic human characteristics into terms denoting diseases, and instead develop a deeper respect for the grand sweep of humanity.

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Some people will enjoy reading this blog by beginning with the first post and then moving forward to the next more recent one; then to the next one; and so on.  This permits readers to catch up on some ideas that were presented earlier and to move through all of the ideas in a systematic fashion to develop their emotional intelligence.  To begin at the very first post you can click HERE.

 

 

 

 

 

Categories
ADHD conflict resolution genetic disease

Is ADHD a Genetic Disease?

Welcome to From Insults to Respect. This week we are going to see if there is a more respectful way to view people said to have ADHD than the unjustified names in common use.

Professor Anita Thapar
Professor Anita Thapar

In an article published in Science Daily, Professor Anita Thapar, referring to a study she is a coauthor of, is quoted as saying, “Now we can say with confidence that ADHD is a genetic disease.”

Anita Thapar’s opinion may lead some to conclude that she has to be correct. She is, after all, a recognized authority on this subject.

However, before making my own judgments, I insist on a reasoned argument even from authorities. If they won’t give me one, or if I find their argument unconvincing, I’m pretty skeptical about what they have to say.

So, what is the reasoned argument backing up Professor Thapar’s “genetic disease” label? She relies on the single study that is cited in the Science Daily article. Let’s take a look at it.

The study looked at the chromosomes of 366 individuals identified as having ADHD, and 1047 individuals who were from a sample of the general population, most of whom were assumed to not have ADHD.

Chromosomes are a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.

gene

The authors found that 57 individuals in the ADHD group had a difference in their chromosomes known as “copy number variants” (CNVs). Said another way, 15 percent of the identified ADHD individuals had this difference. Only 7 percent of the individuals in the sample of the general population had this difference.

Although this finding is, statistically, a significant difference, it is not of practical value in identifying the energetic individuals who tend to get classified as having ADHD. This is because if we were to rely on identifying individuals as having the pattern of behavior that leads to an ADHD classification by seeing if they have this CNVs difference, the vast majority would be incorrectly labelled. In the ADHD sample of 366 individuals, over 300 of them would be wrongly viewed as not having the behavior pattern that typically gets labeled as ADHD.

Professor Langley
Professor Langley

In the words of Dr. Kate Langley, one of the other authors of the study, “Screening children for the CNVs that we have identified will not help diagnose their condition.”

So, based on the fact that in this study 15 percent of the ADHD labelled individuals were found to have this chromosome difference, is it correct or fair to declare that all ADHD labelled individuals have a genetic disease? I don’t think so because 85 percent of them were not identified as having any difference with their genetic profile.

What about the 15 percent that had this difference? Can we say that at least they have a genetic disease? Here too, I don’t think so.

energeticJust because some people have a difference in their genetic makeup that might be involved in a specific behavior pattern does not mean these people have a disease. I know that some say, it is only if the behavior pattern can be linked in some way to some risky behavior would we properly label those with such a pattern, diseased. But the risky descriptor is highly problematic for the following reason:

soldierLet’s say we can find a reliable gene difference in some people who enlist in the military. We then find that joining the military places these people at greater risk of harm, and even death. Would the finding of this type of connection require us to say that this means all who join the military have a genetic disease? I think that would be wrong and unfair.

How about people who have become addicted to cigarette smoking? At one point, most Americans were smoking. Smoking is a behavior pattern that has some risk. Did all smokers have a genetic disease? How about people who comfortably sit in class for hours, get well paying jobs that have them sitting in front of a computer all day, and when they come home, choose to sit in front of a TV? Somewhere there is something in their body make-up that is predictive of this type of sedentary life, so the theory goes. We know such a pattern is a risk factor for a number of health problems. Do these people all have a disease, or would it be clearer, and more scientific, to say their behavior pattern is a “risk factor” for some negative outcome? I believe the latter is more scientific.

genes-3How about being a male? Being a male is clearly due to some genetic difference when compared with the other sex. Males are clearly at a greater risk of violence, and they are more prone to dying from a number of diseases at an earlier age than women. Therefore, does it make sense that all males have a genetic disease? Not in my opinion.

Now, in a free society, a person is free to define a disease as broadly as they wish. If they want to declare that any behavior pattern they don’t like is a disease, no one is going to arrest them, certainly not me. That said, I do think there is value in making a distinction between a scientific definition, and one that is just thrown around in any willy nilly manner.

In science, there is a field of pathology. Here we discover that there is a cluster of body conditions that, taken together, define the field of diseases. heart-diseaseThese include tumors, microbe infections, tissue tears, bone fractures, and blockages to organs such as the heart. If some genetic difference is correlated to one of these pathological conditions, we say that the genetic difference is a risk factor for the particular disease.

The field of pathology, as it is now scientifically defined, is so broad that no single scientist or physician can be fully expert in all aspects of the conditions properly classified as diseases. That’s why we have heart specialists, cancer specialists, etc. To imagine that pathologists and physicians can become, not only experts in the scientific collection of conditions referred to as diseases, and also every other concern a person might have, is not remotely reasonable.

energetic-2With regards to the individuals who are now being classified as having ADHD, the vast majority have no identified scientific pathology. Moreover, often we find that once they get out of a setting in which they are forced to sit in school for hours and hours, they find a career and life style that many value.

From Sir Ken Robinson's Ted Talk
From Sir Ken Robinson’s Ted Talk

Some labelled individuals do get into trouble, but there are many questions concerning the reason for the correlations related to this. Can it be that being placed in a setting throughout their childhood and adolescence where they are viewed as failures, lead to alienation, and less job opportunities? Can this be part of the reason for the correlations?

adhd-drug-concerta-methylphenidate-e1446580142896In my view, the motivation behind physicians classifying the behavior pattern now referred to as ADHD has nothing to do with science, but rather, to make money. The pharmaceutical companies make billions of dollars by promoting the disease concept of ADHD, and  many physicians have found their medical practice has enormously benefited as well.

Well, that’s my critique of the above study and the labels that I view as disrespectful for many a healthy person. I invite anyone to explain disagreements or agreements with my reasoning.

My Best,

Jeff

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Some people will enjoy reading this blog by beginning with the first post and then moving forward to the next more recent one; then to the next one; and so on. This permits readers to catch up on some ideas that were presented earlier and to move through all of the ideas in a systematic fashion to develop their emotional and social intelligence. To begin at the very first post you can click HERE.