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SB
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Sarah Benson
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Updated Apr 6, 2022
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Chapter 1
Audio Transcript
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00:01 - 00:05
Hi, my name is Sarah Benson and today I'm gonna be talking about fragile X syndrome.
00:06 - 00:06
So,
00:06 - 00:10
fragile X syndrome is a developmental disorder caused by a mutation
00:10 - 00:15
in the FMR one gene which is located on a chromosome.
00:15 - 00:21
So when the mutation is looked at through a microscope it appears fragile or broken,
00:21 - 00:23
which is how the disorder got its name.
00:23 - 00:24
So,
00:24 - 00:32
fragile X syndrome is more commonly found in men affecting everyone in 2500 to 5000.
00:32 - 00:35
Um when women are also affected,
00:35 - 00:40
but only everyone in 4000 to 6000 have fragile X syndrome.
00:40 - 00:44
Um but they do often experience milder symptoms.
00:44 - 00:46
It can be present in a range of different severity
00:46 - 00:50
levels depending on how much um the gene was altered.
00:50 - 00:52
It's also currently one of the
00:52 - 00:55
leading causes of inherited intellectual disability.
00:55 - 00:59
So fragile X syndrome is part of a family of other syndromes,
00:59 - 01:05
including fragile X associated tremor and ataxia syndrome and fragile X.
01:05 - 01:08
Associated primary ovarian insufficiency.
01:08 - 01:11
And today I'm only going to be talking about just fragile X syndrome.
01:13 - 01:14
So the causes of
01:14 - 01:16
fragile X syndrome,
01:16 - 01:20
um they occur due to uncontrolled mutation in the FMR
01:20 - 01:23
one gene which is located on the X chromosome.
01:23 - 01:29
So the C. G. G sequence on the chromosome normally repeats from 5 to 40 times.
01:29 - 01:34
However, in people with the F. X. S. Gene, the sequence can repeat up to 200 times.
01:35 - 01:39
So this categorizes FX S as a triple expansion disorder.
01:39 - 01:42
So these uncontrolled mutations turned gene expression off.
01:42 - 01:47
So the FMR one gene that creates protein needed
01:47 - 01:50
for brain development is often what is negatively impacted.
01:50 - 01:54
So some individuals who have changes in their FMR one gene
01:54 - 01:57
are still able to make the protein which explains why F.
01:57 - 02:01
X. S. Can be present in a spectrum of severity levels.
02:02 - 02:03
Yeah
02:05 - 02:08
so risk factors um F. X. S.
02:08 - 02:12
Is an inherited disorder which means that if someone in the family has it
02:12 - 02:16
then other family members could also be at risk for developing it as well.
02:17 - 02:23
So a family history of autism spectrum disorder, um intellectual disability,
02:23 - 02:26
early menopause or neurological problems.
02:26 - 02:30
I will result in a clinical diagnosis of F. X. S. In the family.
02:31 - 02:36
Um With this in mind there are different types of mutations that cause FX. S.
02:36 - 02:39
So the severity of the sequence will determine that the
02:39 - 02:42
likelihood that somebody will pass it on to a child.
02:42 - 02:49
So um types of mutations range from normal, which is anywhere from 5 to 44 mutations
02:50 - 02:53
Intermediate, which is 45 - 54 mutations.
02:54 - 02:55
Permutation,
02:55 - 03:00
which is 55-200 mutations and full mutation which is greater than 200.
03:00 - 03:03
So like I said before, the higher the number of mutations,
03:03 - 03:08
the more likely someone is to pass on that gene to their offspring
03:10 - 03:13
um diagnosis. So F. X. S.
03:13 - 03:16
Is diagnosed through tests from tissues like a
03:16 - 03:19
blood test or from Abney amniotic fluid.
03:20 - 03:24
Um So a molecular diagnosis of FMR one D. N. A.
03:24 - 03:29
Can be done using southern uh plot analysis or a PcR test.
03:30 - 03:33
Um It is common for a diagnosis to be made in Children
03:33 - 03:37
around 2 to 3 years who show delayed or absent speech patterns.
03:37 - 03:43
They may also show delayed motor milestones, poor eye contact, irritability,
03:43 - 03:49
and Hipaa hipaa Tanya, which can encourage um someone wanting to test to be done
03:51 - 03:52
symptoms.
03:52 - 03:55
Um So as mentioned before,
03:55 - 03:59
the number of mutations present will determine the severity of the disorder.
04:00 - 04:05
Um So very few mutations may even result in someone being completely asymptomatic.
04:06 - 04:12
So there are a variety of symptoms that may be present in someone um with FX S,
04:12 - 04:14
which I will break into the following categories.
04:14 - 04:18
So behavior, mental health and physical symptoms.
04:19 - 04:22
So behavior includes social withdrawal,
04:22 - 04:25
um language deficits, learning difficulties
04:26 - 04:29
for eye contact, delayed motor milestones.
04:29 - 04:32
Um Poor communication and sensory disorders.
04:33 - 04:37
Mental health includes things like depression, anxiety,
04:37 - 04:40
obsessive and obsessive compulsive disorder behaviors.
04:41 - 04:45
And then physical symptoms include a large forehead, large jaw,
04:45 - 04:50
large ears crossed or lazy eyes, flat feet and large testicles.
04:50 - 04:52
Um and low muscle tone.
04:53 - 04:58
So those with fragile X syndrome are also at high risk for hypothyroidism,
04:58 - 05:03
dementia, high blood pressure anxiety, sleep apnea and depression
05:07 - 05:10
co morbidity and contraindications.
05:10 - 05:15
So fragile X syndrome is closely related to autism spectrum disorder,
05:15 - 05:17
which is abbreviated asd.
05:18 - 05:20
This is because the fragile X mutation is actually
05:20 - 05:24
the single most common genetic cause of autism.
05:24 - 05:29
So those with autism and F. X. S. Are seen to have fewer expressive
05:29 - 05:33
language abilities and a lower IQ than those with FX. S alone.
05:34 - 05:38
So other secondary disabilities include attention
05:38 - 05:40
deficit hyperactivity disorder which is A.
05:40 - 05:43
D. H. D. And neuronal spine dysmorphia genesis.
05:43 - 05:46
So it is also very common to
05:46 - 05:51
have symptoms of impulsive impulsivity and anxiety disorders
05:53 - 05:56
um considerations for skill development.
05:57 - 06:00
So a few things to keep in mind when
06:00 - 06:03
working with someone who experiences fragile X syndrome.
06:03 - 06:06
Um So I'm going to talk about some ways that you
06:06 - 06:10
can create a supportive environment that will help someone with F.
06:10 - 06:16
X. S. Be able to reach their full potential in various situations. So
06:16 - 06:21
um first of all in learning, um it helps to use engaging material
06:22 - 06:26
um Breaking large loads of work into smaller tasks
06:26 - 06:29
using visual aids such as diagrams,
06:29 - 06:34
pictures or even like color coding um to enhance their understanding.
06:35 - 06:37
The next aspect is environment.
06:37 - 06:41
So in order to help them you can avoid large groups of people
06:41 - 06:45
minimize using different stimuli at the same time,
06:46 - 06:49
keep noise levels low and use natural lighting.
06:50 - 06:55
So certain sensory sensations can be an irritant for someone with F. X. S.
06:55 - 07:00
And as a result this may cause them to act out or to display behavior problems.
07:01 - 07:05
So a few other important considerations are that someone with F. X. S.
07:05 - 07:09
May become less intelligent with age and therefore it's important
07:09 - 07:12
not to compare their physical age to their developmental age.
07:13 - 07:16
Um and remember to scale learning to an appropriate level for
07:16 - 07:20
the specific individual and not hold them to a certain standard
07:23 - 07:25
um treatment and medications.
07:25 - 07:29
So um although there is no cure for fragile X syndrome,
07:29 - 07:33
there are medications that may help to ease the symptoms of F.
07:33 - 07:34
X. S.
07:34 - 07:40
So for example there are various medications for obsessive compulsive disorder,
07:40 - 07:43
sleep issues, anxiety and depression,
07:43 - 07:49
A. D. H. D. And seizures and mood instability also have medications to help
07:49 - 07:50
ate them.
07:51 - 07:52
And someone with FX. S.
07:52 - 07:56
May also benefit from these medications to improve their quality of life.
07:59 - 08:03
So physical activity for someone with fragile
08:04 - 08:04
um
08:05 - 08:06
X. Syndrome.
08:07 - 08:09
So as I mentioned before,
08:09 - 08:14
there are some things useful to keep in mind when working with someone who has F.
08:14 - 08:14
X. S.
08:14 - 08:19
In order to help them be the best version of themselves and succeed in their lives.
08:20 - 08:24
It's very important to scale any physiological activity to the individual
08:24 - 08:29
specifically and not generalized as each person will have different skills,
08:29 - 08:31
abilities and interests.
08:31 - 08:33
So as a response to exercise,
08:33 - 08:37
our body produces neurotrophic factors such as nerve
08:37 - 08:41
growth factors and brain derived neurotrophic factors.
08:42 - 08:44
So these factors may cause improved cognitive
08:44 - 08:48
function and memory and increased neuronal survival.
08:49 - 08:51
So studies show that even mild and
08:51 - 08:55
moderate physical activity will increase cerebral vascular
08:55 - 08:59
activity which can help with long term survival of neurons in the brain.
08:59 - 09:03
So basically participating in regular physical activity can result
09:03 - 09:06
in long term improvements um to brain function,
09:06 - 09:09
assisting in a better quality of life.
09:12 - 09:15
So individuals with F. X. S. And sport.
09:15 - 09:20
So I was researching off of the special olympics website and
09:20 - 09:23
these are just two stories of individuals with fragile X.
09:23 - 09:28
Syndrome who noticed that sport had helped them um improve their quality of life.
09:28 - 09:32
So the first individuals named Jonathan,
09:32 - 09:35
so he had always been an introverted boy.
09:35 - 09:37
He would always stay in his room by himself
09:37 - 09:39
and found enjoyment in playing with his toys.
09:40 - 09:44
He did not express himself much when he was with his friends or family.
09:45 - 09:50
Um His parents got him involved with special olympics in sports such as golf,
09:50 - 09:51
swimming and tennis.
09:52 - 09:56
He had very supportive coaches and worked in a team environment.
09:56 - 09:59
So after um playing sports for a while,
09:59 - 10:04
Jonathan's parents noticed um the impact that it had on other aspects of his life.
10:04 - 10:08
So he started interacting more with people getting interested in
10:08 - 10:11
school and even starting to set goals for himself.
10:12 - 10:16
Um None of which he had done prior to um doing any sport.
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So he even began an academic career in computer science all
10:20 - 10:23
while working a part time job at a grocery store.
10:23 - 10:28
So his parents credit the success of his life largely to his involvement in sports.
10:29 - 10:33
So I'm going to answer the question how could someone make Jonathan's environment?
10:33 - 10:35
Um one suited best for him.
10:35 - 10:39
Um So given his his specific circumstance as mentioned before he's
10:39 - 10:44
very introverted so he should be put in a situation um
10:44 - 10:48
where he feels comfortable um otherwise it may cause him to
10:48 - 10:51
feel frustrated or to back away from any sports altogether.
10:51 - 10:52
So
10:52 - 10:56
um for example, it would be important that when working in a group setting,
10:56 - 10:59
Jonathan's coaches were aware that he gets anxious in
10:59 - 11:02
large crowds of people um and then maybe in
11:03 - 11:06
instruct him in smaller groups or even independently
11:06 - 11:09
until he got more confident with the sport,
11:09 - 11:11
the next athlete is gen.
11:11 - 11:17
Um So she wanted to participate in sports, like she saw those around her doing,
11:17 - 11:22
however, she had motor skill issues and experienced slower processing times,
11:22 - 11:26
which caused a lot of frustration for her whenever she tried to play a sport.
11:26 - 11:30
So eventually her parents got her and her sister who both
11:30 - 11:34
had fragile X syndrome um involved in a special olympics program.
11:35 - 11:37
So the parents report noticing,
11:37 - 11:39
reported noticing increased confidence levels from
11:39 - 11:41
both of the girls um In addition
11:41 - 11:46
to reduce social anxiety and the overall improvement and quality of life.
11:47 - 11:50
Um So how could someone make her environment best suited for her?
11:50 - 11:51
So, as mentioned,
11:51 - 11:57
gen experienced motor skill issues which caused her to become frustrated easily.
11:57 - 11:58
So in this circumstance,
11:58 - 12:03
it may be helpful for jen to work with a motor motor program specialist who
12:03 - 12:08
would work with her personally by creating a motor program suited best for her.
12:08 - 12:11
And because jen had slower processing times,
12:11 - 12:14
this may just mean that she takes a little bit longer to learn a skill.
12:14 - 12:18
And so by doing that in a private setting would allow her to build
12:18 - 12:23
her confidence up until she feels like she can go um comfortably work with
12:23 - 12:26
um with her peers in a group setting,
12:30 - 12:35
so support for people with fragile X syndrome.
12:36 - 12:41
So there are multiple different supports offered for them.
12:41 - 12:47
Um but one that stood out to me was the National Fragile X syndrome Foundation.
12:48 - 12:50
So they have a website
12:50 - 12:54
that basically has different resources um
12:54 - 12:58
for people wanting to learn about fragile X syndrome
12:59 - 13:05
and they offer different activities and um places to donate and stuff like that.
13:05 - 13:07
Um just to kind of put everything all in one
13:07 - 13:11
area for someone interested in learning about fragile X syndrome.
13:11 - 13:11
So
13:12 - 13:16
their mission is to serve the Fragile X community
13:16 - 13:19
to live their best lives by providing the knowledge
13:20 - 13:24
resources and tools until even after more
13:24 - 13:27
effective treatments and a cure are achieved.
13:27 - 13:29
So that was taken from their website.
13:29 - 13:36
Um They help in the community by offering supports that prioritize advocacy,
13:36 - 13:39
education research and treatment.
13:40 - 13:42
Um for example,
13:42 - 13:47
they advocate for families by offering virtual community social events
13:48 - 13:51
a year round legislative advocacy program
13:52 - 13:55
and promote an annual awareness month in july.
13:55 - 13:58
They offer education by producing webinars,
13:58 - 14:01
e books and articles open to the public
14:01 - 14:06
and they also help to advance research by facilitating
14:06 - 14:10
research activities for family and professionals that um show
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how community participation can move them one step further
14:14 - 14:15
um
14:15 - 14:19
to an eventual cure for fragile X syndrome.
14:20 - 14:25
Um So they also have an area on their website for donations, like I mentioned before,
14:25 - 14:25
um,
14:25 - 14:29
in ways people can join or get involved and
14:29 - 14:31
um just connect with the content that they post.
14:32 - 14:35
Um, so just another resource for anybody interested,
14:36 - 14:42
um and learning more about fragile X syndrome, and that concludes my presentation.
14:42 - 14:44
Thank you Phyllis.
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