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| He thought he was the doctor. That hasn't changed. |
This is our family's journey with the rare PIGN genetic disorder Multiple Congenital Anomalies-Hypotonia-Seizures Syndrome 1. When our son was diagnosed in November 2015, we were told he was the 15th documented case in the world. We've discovered more affected individuals since, but it's still an extremely rare and unknown condition since its discovery in 2011. Our hope is to create awareness of the disorder and foster a sense of community among those affected by the disorder.
Thursday, November 13, 2025
Diagnosis Day
Friday, June 17, 2022
PIGN-CDG Research - We're Fundraising!
When we got Teddy's diagnosis back in 2015, it was an extremely bleak prognosis with no treatment plan because none existed. Seriously, we were referred for a handful of tests to make sure he didn't have issues with his heart or his kidneys because the research papers indicated those systems could be affected. But that was the extent of what we gained from his diagnosis from a medical standpoint.
More than a decade after PIGN-CDG was first diagnosed, no treatment exists. The reality is that so few people are diagnosed with PIGN-CDG (less than 100 known cases) that there's minimal interest in researching PIGN-CDG, much less researching and developing treatments. However, we have a unique opportunity to have a team research treatments for the disorder.
We first connected with Ethan Perlstein of Perlara through the World CDG Conference. Another PIGN family spoke to him, gauged his interest and availability to work with our disorder and coordinated a call for other PIGN families. Perlara has worked with other families and organizations to development treatment models, probably with the most well-known and promising one that I'm aware of being Maggie's Pearl for a different type of CDG.
In essence, there's not a single genetic mutation that results in PIGN-CDG. A handful of known affected individuals share the same mutation, but even within the same family the mutations can manifest differently. In Teddy's case, part of his gene from Dave was missing a piece whereas part of his gene from me had broken apart and reattached in the wrong location (a splice site).
Scientifically speaking, the PIGN gene is a common gene that is found in many other organisms, including yeast cells. This allows scientists to replication the mutations in yeast cells and then perform testing on the yeast cells. They can test existing drugs on yeast cells to see if they find promising results and can repurpose an existing medication to actually treat PIGN-CDG rather than just treating the symptoms that result from the disorder. (Tmost common and significant treatment is often for seizures, although many have a multitude of medications to manage a variety of symptoms).
This research is truly about doing the science and seeing where it takes us. There is no cure for CDG and likely will never be. There is not even a guarantee at finding a treatment. However, this is the single best hope we've seen in the decade since PIGN-CDG was discovered to find a treatment.
We don't know if this will result in a treatment that benefits Teddy. There's a possibility, although the skeptical side of me acknowledges it's more likely that a treatment will help other PIGN individuals more than Teddy who are more severely affected. Yet, it's an opportunity to help others, to give hope and to perhaps make this road easier for others in the future ... and best case scenario easier for Teddy.
So we're going to be diving into fundraising efforts in the next couple months. The researchers at Perlara have limited capacity for projects, and we just squeaked in with the PIGN project. The trick now is to raise the funds necessary to do the first two phases (develop the yeast cells and begin drug repurposing testing) in short order. We do need to act quickly, so that we don't lose essentially our place in line.
I'll share more in the upcoming weeks on fundraising opportunities, but I'm starting with simply sharing our fundraising page: CDG CARE (givelively.org) Your donation is tax deductible. Please consider a donation or share this post with others to raise awareness.
If fundraising is your jam and you're interested in helping in this adventure, please let me know. I'd be happy to chat with you, even if it's to learn from you.
Perhaps we should do accordion concerts for donations. If you don't pay to join the concert, I'm sure you'd donate to end the concert!
Wednesday, January 12, 2022
MCAHSS1 vs. CDG-PIGN
Teddy's initial diagnosis was Multiple Congenital Anomalies-Hypotonia Seizures Syndrome 1. That mouthful was a lot to remember, but it was ingrained in my mind from the first genetics appointment. Since then, we've heard a couple times (at the National Institutes of Health and at the Congenital Disorders of Glycosylation conference last year) that they are changing the naming structure to refer to the affected gene name. Since then we've been calling his diagnosis CDG-PIGN (although I think we're supposed to call it PIGN-CDG).
This came to mind again when new families are joining our Facebook group because some of them are still getting the MCAHSS1 diagnosis, the acronym for the full name. I think the switch with naming happened a few years ago, but it's clearly not universal.
I simply wanted to revisit this from an education standpoint and to put it out there for those searching for either diagnosis to hopefully find this nugget helpful.
Thursday, May 16, 2019
World CDG Awareness Day 2019
When Teddy was first diagnosed, we were told he was the 15th child in the world with his particular diagnosis of Multiple Congenital Anomalies-Hypotonia Seizures Syndrome 1 (MCAHSS1). With our visit to the National Institutes of Health last year, his diagnosis was simplified to Congenital Disorders of Glycosylation of the PIGN gene or CDG-PIGN because he didn't fit all the characteristics of MCAHSS1.
As you saw earlier this week with the The Smiling Faces of CDG-PIGN are Growing!, there's far more than 15 children with CDG-PIGN. My best estimate within our group is that there are at least 7 more children who weren't included within that post for various reasons. We know there's another 7 and probably a couple more who are documented in research papers who aren't connected to our group.
That still leaves us with less than 50 cases collectively known and documented in the world. So why is CDG-PIGN so rare? There's a few rather simple reasons:
- As our geneticist explained to us, there's way less than a 1 percent chance that any person carries this type of genetic mutation in their PIGN gene that can manifest in this disorder. Then, that person needs to find another person with that way less than a 1 percent chance of a genetic mutation. Then, there's a 1:4 chance of a child of those two people having CDG-PIGN because these are recessive mutations. That means that 3 out of 4 children from those two people statistically would be unaffected. One out of 4 won't even be a carrier of the recessive genetic mutation.
- CDG-PIGN, at least the MCAHSS1 variety, wasn't even discovered until 2011. That's mind blowing to me. There was a definite feeling of amazement, and not in a good way, when a Google search resulted in literally 3 different responses back when we got Teddy's original diagnosis. (I'm so happy that this blog now shows as one of the top results when you search CDG and PIGN together. That's one of the reasons we've been able to connect more families who are recently diagnosed.) There are probably plenty of people who have or had CDG-PIGN who were incorrectly diagnosed. We know that because several members of our group were misdiagnosed for years before getting the correct diagnosis. At some point, most people just stop looking for answers and don't continue to seek a diagnosis either because all options known at the time were exhausted or they were simply exhausted with the process.
- The only way, to my knowledge, to diagnose CDG-PIGN is through genetic testing. For us, that was an extremely expensive test that took months to complete called exome sequencing. Basically it's the equivalent of scooping up all the DNA you can and then looking through the exome, the section of DNA that is most understood, for each gene. When something comes back abnormal, it's checked against databases for known disorders as well as against the parents' DNA. It's so expensive that it's often not covered by insurance companies and certainly not by Medicaid. It's also a test that wouldn't be available in a country without the same medical testing that's available in first-world countries.
Tuesday, May 14, 2019
The Smiling Faces of CDG-PIGN Are Growing!
It is my honor and pleasure to share with you snapshots of our amazing children and just a bit about each of these incredible children. Each child is wonderfully unique, yet there are so many similarities among our children. You'll see that in their joy, their smiles and their determination.
So, since our group is so much larger than 3 years ago, settle in to learn about our amazing children. Grab a cup of coffee, a mug of tea or a nice cold beverage, depending on which side of the world you're on, and enjoy!
Australia
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| Scott may have been non-verbal, but he communicated with his eyes. |
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| Andrew lived a good life, thanks to his family's love, care and advocacy. |
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| Bri brings joy to those she meets. |
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| Zach loves horse therapy and has made so much progress with it. |
Belgium
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| Jarne loves food and helping with meals. |
Canada
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| Isabel, with her sweet smile, is the oldest person with CDG-PIGN in our group. |
France
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| Adorable Chloe lives with her parents and big sister in France. |
Germany
Anna is 19 months old and lives with her parents in Munich. Her mom describes her as a very happy baby. She likes to play, destroy newspapers and is an "inquisitive little person." She is still working hard to learn how to sit, crawl and walk. She really loves her daddy and giggles whenever she sees him. Anna still prefers nursing more than normal food. Her mom said, "She loves to party from 3:30 a.m. to 6 a.m." She has seizures but hasn't had any after starting Keppra combined with vitamin B6.Poland
Emily, or Emi, is one of the children you met in the previous posts. Emi turns 8 this July. She was one of the first in our group to be diagnosed with CDG-PIGN, and her mom is a tremendous advocate and resource. She's the one who started our Facebook group that connects us all. Emi loves children and Elmo. She hates wearing socks and loves bare feet. Despite her challenges, she is a joyful child. Emi is now a big sister to her brother, who is unaffected by CDG-PIGN.![]() |
| Emi loves her feet to be free! |
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| Sweet Kaja loves to cuddle and snuggle. |
Kinga is 11 years old and is also from Poland. Kinga has a PIGN genetic mutation. She is a very cheerful girl. Kinga cannot talk, but she can walk with assistance. Kinga loves to take baths, play with other children and jump on the trampoline. Her biggest challenge is drug-resistant epilepsy.
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| Kinga has a sweet smile to go with her sweet personality. |
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| Zuzanna is a special girl who lights up life for her family. |
Qatar
Olivia lives in Qatar with her family, but they are originally from Lebanon. Oliva will turn 2 in October, and she was diagnosed when she was 6 months old. Olivia loves having other kids talk and play with her. She will soon be a big sister when her little brother arrives.![]() |
| Olivia will soon be loving on her baby brother. |
United States
California
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| One of Jacksynn's favorite things is rollercoasters! |
Colorado
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| Nicholas has such a sweet smile! |
Vivien is another child from Florida who is now 10 years old. She spreads joy wherever she goes. She lives with her mom and dad just outside Orlando, and she has an older sister who's already an adult. In addition to having a variant on her PIGN gene, she is partially missing her corpus callosum. She has a lot of challenges, particularly seizures when ill. She is non-verbal and has challenges with her gross and fine motor skills. However, that doesn't stop her from having a good time, being silly and laughing at her goofiness with others. She is extremely affectionate and loves being held (and carried). She also loves Barney and her swing set when she's feeling well enough. You won't see her adorable smile, though, if you're brushing her hair or teeth, making her sit still or trying to keep shoes on her feet.
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| Vivien loves to be outside! |
The last of our children from Florida are Ryan and Zach, who are brothers. Zach is now 17 and about to graduate high school. Ryan is 14, and both were diagnosed with a variation of CDG-PIGN in December 2016. These brothers had previously underwent numerous tests, all with results coming back "normal." Both boys are able to compensate for their gross motor hypotonia but struggle with speech and fine motor skills. Zach is more understandable than Ryan, but make no mistake, Ryan gets his point across clearly.
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| Ryan and Zach are huge fans of the Incredibles. |
"Their joy is contagious," says their mom. "While I often struggle with the things they can't do, my boys don't seem to know their own limits. They cruise through life with a positive attitude and a smile on their face."
Illinois
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| Aniyah is a sweet girl with a sweet smile. |
Samantha is another familiar face from previous years. Sammie lives with her family in Arlington Heights, a suburb northwest of Chicago. She is 12 years old. Sammie is a joyful, determined, strong-willed and social girl. She loves life and enjoys familiar experiences. She loves playing sports, music, dancing, face-paint and going to the zoo. She has a great sense of humor and loves to laugh and make others laugh. She adores her brothers (Matthew, 15, and Benjamin, 14), family, friends, teachers, therapists and doctors. She tries to make a connection with everyone she encounters. For a child who is essentially nonverbal, she does an unbelievable job of getting her point across. She has developed her own signs for many activities, places and people. She also uses a "talker" to help her communicate.
Sammie had her first seizure when she was 3 months old and still struggles with seizure control. She has been on the ketogenic diet for 7 years, and it has helped her more than any other medication. She attends a public school but is in a self-contained class. She absolutely loves school, especially when there is a field trip! Sammie has an abundance of joy and shares it with everyone she meets. (I can vouch for this because we've been fortunate enough to meet Sammie twice.)
Louisiana
Brooklyn lives with her parents in Abita Springs. She was born at 30 weeks and had quite a rough start to life. Even as a baby, she was described as a fighter, says her mom. When Brooklyn was 7, she was diagnosed with a mutation in her PIGN gene. She is now 12 and a happy smiling girl who enjoys living and experiencing life. Brooklyn continues to surprise her parents every day.![]() |
| Brooklyn has a smile that brightens peoples' days. |
Maryland
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| Kalani was a beautiful little girl. |
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| Alexa works hard to keep up with her big sister and younger brother. |
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| Holly was a sweet soul who faced many medical challenges. |
Massachusetts
Nolan lives in Watertown with his parents and two younger brothers. He is non-verbal, non-ambulatory, has a seizure disorder and visual impairment, utilizes a g-j tube for nourishment and a bi-pap/oxygen to support his breathing at night.Nolan turned 10 years old this April. He is such a happy kid. He loves music, lights and "off-roading" in his wheelchair. (The bumpier the better!) He adores his little brothers, who are 9 and 6. He laughs at all the havoc they wreck everywhere they go. His favorite movie is The Greatest Showman. With all the music and flashy colors, he loses his mind when he watches it. He loves school, and the teachers and students all love him. He is lovingly referred to as "the mayor" at school because he loves cruising the halls saying hello to everyone.
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| Meet Nolan, otherwise known as the Mayor. |
New York
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| You'd be hard pressed to find a bigger sports fan than Rego! |
I cannot wait to see what the future holds for Rego and Lennon!!"
Oklahoma
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| Such joy in Maddie's smile! |
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| Sanjeet is dearly missed and fondly remembered by his family and friends. |
Pennsylvania
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| Julia's name is understandably Joyful Julia. |
Texas
Demi lives in Cleburne with her family. She turns 2 on World CDG Awareness Day. Demi was born with Multiple Congenital Anomalies-Hypotonia Seizures Syndrome 1 (MCAHSS1) because both her parents were carriers of the recessive genetic mutations. Demi started walked around 20 months. She says "Mama" and "Dada." Demi does physical, speech and occupational therapy once a week. She is a happy and pretty healthy little girl who continues to make progress each day.![]() |
| Demi continues to develop her skills with that sweet smile. |
Wisconsin
Last but not least is Teddy. Teddy turns 6 this July. He's managed to avoid seizures for the past year, which is such a blessing. Teddy loves being in kindergarten, although he sometimes is tired by the end of the school day. He has made great progress this school year with his attention, when it's an activity that interests him, as well as his ability to follow simple directions. He's learned to steer his adapted tricycle much better, as is evidenced by him intentionally steering for the ditches because they're more fun than the road. Teddy lives for adventure, whether running with myTEAM Triumph or riding any tractor, golf cart, lawn mower or anything else that drives that he can finagle his way onto. We continue to use his talker, but he is most effective communicating with gestures. He's learned to walk, run and jump, although he was a bull in a china shop for Halloween last year for a reason. His favorite things include his older brother, climbing, shoes, buckles, laces, vehicles and being outside.![]() |
| A rare picture of Teddy sitting still ... until he climbed back down. |
Tuesday, May 16, 2017
World CDG Awareness Day
So you ask, what in the world is CDG? CDG is the abbreviation for Congenital Disorders of Glycosylation. See why it's referred to as CDG? The oversimplified explanation is that this is a group of disorders that people are born with that affects how cells function on a biological level. This group of rare disorders includes Multiple Congenital Anomalies-Hypotonia Seizures Syndrome 1 (MCAHSS1), which is Teddy's diagnosis.
Given the rarity of CDG, including Teddy's diagnosis, we want to do what we can to raise awareness. Awareness is important to us on a personal level because we want other families with this same or similar diagnosis to know they are not alone, that the prognosis may not be as bleak as portrayed in the limited medical research and share the amazing support group of families with the diagnosis.
Also, awareness is the first step in generating interest. Interest is the first step to inspire someone to want to do research. Research is critical when you have a diagnosis like MCAHSS1 with less than 50 known cases in the entire world. There's not much there to research and not many reasons to invest money into that research.
But I have one really cute and important one:
So, we'll be wearing green today for World CDG Awareness Day. And maybe, just maybe, next year I'll be on the ball enough to get shirts made for our family.
Thursday, April 28, 2016
My Little Celebrities
The Flintstone Challenge is a 5k run/walk sponsored by Michigan State University- Flint campus medical students that benefits the school system in Flint, Michigan. We are always more than happy to share our story because we feel it's important to create awareness for Teddy's rare disease.
We were asked a series of thoughtful questions, although it's a bit tricky to interview a 4-year-old. AJ's answers depended on his mood, so we did our best with that part.
You can check out the full interview online: http://flintstonechallenge.org/i-run-4-siblings
They also shared a copy of the event newsletter with us with a really nicely done article.
It's getting hard to live with these celebrities.
Sunday, March 6, 2016
The Smiling Faces of CDG PIGN
One of the best things that's happened to us related to Teddy's diagnosis was connecting with other families with the same PIGN genetic mutations. Since December, we've been able to connect through a private Facebook group, and there's a whopping 10 families from 4 different countries. Ten might not sound like a lot, but it really is when you're told your child is the only one in the world with this diagnosis or you wait six or more years to finally find a name for what makes your child unique.
It's been such a blessing to have others to compare notes on issues, possible treatments and successes (since we're not bound by HIPPA and want to share as much as we can to help each other). For us personally, we've learned as much or more about about this syndrome from these other families than our genetics team. Each of our children faces unique challenges, but as one of the other moms put it best, "we've all decided awesome smiles are a universal 'symptom' of this syndrome."
When Teddy was diagnosed, we were given two research papers about his syndrome. Both included a few pictures of some of the children diagnosed with the syndrome. Most of the pictures focused on differences of body structure, such as inverted nipples, to help geneticists better diagnose CGD PIGN. (The technical term is dysmorphic features.)
I want the world to see our children for who they are, not any dysmorphic features they may have. With their parent's permission, I am honored to introduce you to some of the most awesome smiles you'll ever see.
Australia
Brianna and Zachary are siblings from Sydney Australia. Brianna is 13, and she's a happy, fun-loving teenager who loves music and is rarely without a smile on her face. She is a very determined (or stubborn!) soul who loves to try new and exciting things especially if they involve things like waterslides and funpark rides.
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| Brianna looks gorgeous with her beautiful smile! |
Zachary is 7 and is is very much like his sister. He is a happy, fun-loving boy who loves to help people. He always has a smile on his face and is the first one to step in and help if something needs doing. He loves his big brother, Nate, and is always trying to do things just like him.
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| Zachary shares his awesome smile! |
Canada
Lauren, Wyatt and Logan are siblings from just outside of Toronto, Ontario. Lauren was 11.5 years old when she passed away. She was non-verbal, non-ambulatory, and G-tube fed with high occurrence of tonic-clonic seizures, until the age of around 3. Her seizures were mostly controlled with phenobarbital and changed into absence seizures as she got older. She had GI motility issues, would throw up often and developed aspiration pneumonia many times. She passed away from complications of pneumonia. She was an extremely happy little girl, and everyone who met her was drawn to her bubbly personality. At her funeral one of the students from her class gave a eulogy stating, "She never had to say a word, she still knew how to get her point across!"
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| Lauren's smile made the world a brighter place. |
Logan was born at 26 weeks gestation. He had a 100% diaphragmatic hernia (meaning he had no trace of a diaphragm at all), and his organs were in the wrong place and misshaped and the wrong size. Despite his brief time on earth, he holds a lasting place in the hearts of his family.
Wyatt turns 8 this month. As a baby, he didn't have a good suck but was able to swallow formula and eat pureed foods well by mouth from age 1. GI motility issues created a volvus and ended up strangling his small intestine, and most of GI was necrotic and had to be removed. Now has an ileostomy and receives IV nutrition through central line for 14 hours overnight. He still eats by mouth but mostly to keep his stomach feeling full and to keep his gallbladder and stomach working. He developed seizures around age 4. They generally were only febrile seizures but over time have developed into seizures that happen even without fever. They generally are absence seizures but occasionally are "twitching" type seizures. He is an extremely happy boy who goes to school for full days and is integrated into regular classrooms and has aides who work with him on his therapies. He is well loved in the school and very close with his little brother. Wyatt has an amazingly sweet demeanor. He loves watching movies and going on adventures! He also really likes sporting events.
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| Wyatt is one handsome smiling boy! |
Poland
Emily is 4.5 years old. After several years of searching for a diagnosis, Emily was diagnosed with Congenital Disorders of Glycosylations associated with the PIGN gene. It was scary for her family because her doctor said she was the third family in the world. After a few months of searching with the help of doctors from around the world, her mom connected with another family and started the Facebook group. As her mom said, "It is wonderful to cooperate with such great people." Emi loves different voices, especially the voices of children and Elmo from Sesame Street. She loves to play with bare feet, and she hates wearing socks and tights. Despite the challenges she faces, she is a joyful child.
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| Emily's mom loves this smile! How couldn't you? |
United States
Arizona
Mateus Alves turns 6 this April. He lives in Goodyear, Arizona. Although he was born in the United States, both his parents are from Brazil. Mateus is a happy, happy boy. He is a ray of sunshine for his family. He only gets upset when he's in pain or when they don't listen to him. Since he is non-verbal, it's sometimes hard to understand what he is trying to communicate. But as soon as his family understands, Mateus gives them the biggest smile. He loves Elmo, going to school, doing anything with brother, playing rough with daddy and mama's snuggles. Mateus loves to be outside, listen to stories and music and messy play.![]() |
| Mateus is a handsome boy with a huge grin! |
California
Jacksynn is an adorable 7-year-old girl from Merced, California. She loves princesses!![]() |
| Jacksynn's smile and personality shine! |
Illinois
Sammie lives with her family in Arlington Heights, Illinois. She is 8 years old and is one of the happiest little girls you will ever meet. Despite being non-verbal, she is a social butterfly and is happiest when she is around people. She has two older brothers who are her best buddies and love her fiercely. Her challenges never stop her from trying new things as she is determined and stubborn. As her mom said, "To know Sammie is to love Sammie."![]() |
| Sammie's toothless smile is beyond adorable! |
Maryland
Baltimore
Holly and Alexa are sisters from Baltimore, Maryland. Alexa turns 3 this month. She is feisty and full of spunk and personality. She almost always has a smile and laugh to share!![]() |
| Alexa is smiling through her beloved chewelry! |
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| Holly's smile could light up a room! |
Elkridge
Kalani lived in Elkridge, Maryland. Kalani passed away last month when she was 16 months old. Her mom described her as a soldier.![]() |
| Kalani was an adorable little girl! |
Oklahoma
Sanjeet is a handsome 4-month-old boy who lives with his family in Oklahoma City. His ethnicity is Asian Indian. He has PIGN gene mutation where his parents are carrying the same genetic mutation as recessive carriers. Irrespective of how this affects each and every cell in his body, his personality outshines it. He loves his food! If anyone is late feeding him by 5 minutes, he will scream at the top of his lungs to get it immediately. He is very persistent in proving his neurologist wrong when it comes to feeding on his own. He is a fighter who loves warm hugs! He is content for the most part and is always ready to wiggle down and explore the world his own ways.![]() |
| Sanjeet is a handsome baby boy! |
Wisconsin
Last but not least is Teddy. For those of you who aren't familiar with his story, Teddy is 2.5 years old and lives in Oshkosh, Wisconsin with his family. He is one of the happiest children you'll meet, unless you try to make him sleep. His big brother AJ is his favorite toy in the entire world, and Teddy loves to chase after him. Although Teddy has to work harder to accomplish things than typical children, he is persistent and determined. He loves to climb absolutely everything and has no fear!![]() |
| Teddy has the cutest dimples! |
These are the faces of the alphabet soup that makes up their diagnosis: CDG PIGN. They are far more than their diagnosis. Their diagnosis provides a name to summarize many of the challenges they face (and the name itself we were given for Teddy captures so much: Multiple Congenital Anomalies-Hypotonia Seizures Syndrome 1). Their diagnosis is the reason why some of these children are no longer on earth. But their diagnosis is not who they are. They are Brianna, Zachary, Lauren, Logan, Wyatt, Emily, Mateus, Jacksynn, Sammie, Alexa, Holly, Kalani, Sanjeet and Teddy. And they are amazing.
Monday, February 29, 2016
Rare Disease Day
I figure Rare Disease Day is a good time to share a bit more about Teddy's genetic disorder: Multiple Congenital Anomalies-Hypotonia-Seizures Syndrome 1. I hadn't done a post yet attempting to explain his diagnosis for two reasons:
- An Internet search will give you basically the same information I can share.
- It's really complicated. It's honestly to the point that I feel like I need a doctorate degree in genetics to understand, much less help others understand.
The disorder was discovered in 2011, following 7 confirmed cases from 5 inter-related families in the Middle East. That cluster of children all grouped together provided enough information for the medical field to understand that mutations on the PIGN gene cause this condition. Including those children, there were a total of 14 cases listed in research papers when Teddy was diagnosed in November 2015, according to our genetics team. Because of the rarity of the disorder, our joke was that Teddy wasn't one in a million. He's more like one in a half billion.
Since that time, we've been beyond blessed to connect through Facebook with 8 families throughout the world who have children with the disorder. We recognize the disorder is rare, but we also believe there's plenty of people who haven't been diagnosed. We received the diagnosis after exome sequencing, which is an expensive genetic test that has only been used in recent years. Unless a person goes through the gamut of testing to get to exome sequencing, it's unlikely they'd receive this diagnosis.
MCAHSS1 falls into the category of Congenital Disorders of Glycosylation (CDG). Per the National Organization for Rare Disorders, "Glycosylation is the process by which sugar ‘trees’ (glycans) are created, altered and chemically attached to certain proteins or fats (lipids). When these sugar molecules are attached to proteins, they form glycoproteins; when they are attached to lipids, they form glycolipids. Glycoproteins and glycolipids have numerous important functions in all tissues and organs. Glycosylation involves many different genes, encoding many different proteins such as enzymes. A deficiency or lack of one of these enzymes can lead to a variety of symptoms potentially affecting multiple organ systems. CDG can affect any part of the body, and there is nearly always an important neurological component. CDG can be associated with a broad variety of symptoms and can vary in severity from mild cases to severe, disabling or life-threatening cases."
Makes perfect sense, right?
Essentially, the mutations of Teddy's PIGN gene affect his body's ability to send messages and connect information because the pathways and processes don't function typically.
You can find more technical explanations of this category of rare disorders through the National Organization for Rare Disorders at rarediseases.org/rare-diseases/congenital-disorders-of-glycosylation/
There's also more information about Rare Disease Day through www.rarediseaseday.org
Join us in making the voices of rare diseases heard.
(And thanks for listening to Teddy's voice.)

















































