Unknown Genes

MylittleDobe

New member
I was just wondering how many people are considered as having unknown genes? I have 5 children, 2 unaffected, 1 carrier DF508, 1 symptomatic carrier DF508 and 1 of my twins also has DF508 but he is considered as an ATypical CFer. We having been battling to get a dx for him for over 2 yrs. He is on alot of th treatments and has had a lot of health problems which all seem to be CF related. It appears that my husband is the carrier of DF508 because he has a cousin on both sides of his family that have kids that have DF508 and I would carry the unknown. We also have never been able to find proof of CF on my side but most everyone on my parents sides are sickly. Lots of health problems for each of us and that may be masking the CF symptoms.<br><br>The question I have is (and none of the Dr.s we have seen can answer this) do you need to have the DNA testing redone or does Ambry automatically rerun it sometime in the future? It's been 2 yrs and I know that so many more have been found. I would really like to get his dna straightened out so he can get all the proper treatments, and what if the two who show no carrier signs are actually carriers of the unknown? Thanks in advance for your help!<br>
 

MylittleDobe

New member
I was just wondering how many people are considered as having unknown genes? I have 5 children, 2 unaffected, 1 carrier DF508, 1 symptomatic carrier DF508 and 1 of my twins also has DF508 but he is considered as an ATypical CFer. We having been battling to get a dx for him for over 2 yrs. He is on alot of th treatments and has had a lot of health problems which all seem to be CF related. It appears that my husband is the carrier of DF508 because he has a cousin on both sides of his family that have kids that have DF508 and I would carry the unknown. We also have never been able to find proof of CF on my side but most everyone on my parents sides are sickly. Lots of health problems for each of us and that may be masking the CF symptoms.<br><br>The question I have is (and none of the Dr.s we have seen can answer this) do you need to have the DNA testing redone or does Ambry automatically rerun it sometime in the future? It's been 2 yrs and I know that so many more have been found. I would really like to get his dna straightened out so he can get all the proper treatments, and what if the two who show no carrier signs are actually carriers of the unknown? Thanks in advance for your help!<br>
 
M

Mommafirst

Guest
Did Ambry run the entire gene sequencing with deletions and duplications? You can call them to make sure and ask if they see value in re-running the testing.

There does seem to be a small subset of CF patients who have an unknown mutation around here. If I were a betting person, I'd guess that there is a second gene on the chromosome other than CFTR that also impacts the CFTR functioning....if so it would account for not only the unknown mutations, but also the degree of difference in terms of severity and speed of progression.

From my understanding, having 2 genes means you get a CF diagnosis, but you can also get diagnosed with one gene and a list of clinical symptoms or a positive sweat test. So it sounds like your son has the ability to get diagnosed, but it also sounds like your doctor is too narrowly focused on the "known gene" thing.
 
M

Mommafirst

Guest
Did Ambry run the entire gene sequencing with deletions and duplications? You can call them to make sure and ask if they see value in re-running the testing.

There does seem to be a small subset of CF patients who have an unknown mutation around here. If I were a betting person, I'd guess that there is a second gene on the chromosome other than CFTR that also impacts the CFTR functioning....if so it would account for not only the unknown mutations, but also the degree of difference in terms of severity and speed of progression.

From my understanding, having 2 genes means you get a CF diagnosis, but you can also get diagnosed with one gene and a list of clinical symptoms or a positive sweat test. So it sounds like your son has the ability to get diagnosed, but it also sounds like your doctor is too narrowly focused on the "known gene" thing.
 

Graham

New member
Hi there,

My son has been through a rough diagnosis as well. His newborn screening test was flagged then followed up with a two sweat test, both of which were negative. He then was given the dna screeing and two mutations popped up. One being N1303K and the other R117H with no 5T. Since the R117H does not have the 5T present it's functioning enough that everything is normal. Doctors have been giving sweat test each month and at his 3 month test it still showed up negative. Not one doctor will diagnose him with CF because the R117H is functioning enough - they are calling him a carrier. We are unsure what to do. When do you start medication regime? Suggestions on what to do?

-Betsy
 

Graham

New member
Hi there,

My son has been through a rough diagnosis as well. His newborn screening test was flagged then followed up with a two sweat test, both of which were negative. He then was given the dna screeing and two mutations popped up. One being N1303K and the other R117H with no 5T. Since the R117H does not have the 5T present it's functioning enough that everything is normal. Doctors have been giving sweat test each month and at his 3 month test it still showed up negative. Not one doctor will diagnose him with CF because the R117H is functioning enough - they are calling him a carrier. We are unsure what to do. When do you start medication regime? Suggestions on what to do?

-Betsy
 

MylittleDobe

New member
Im not sure what testing was done....I do know that he had two papers, one for the DF508 test and the other one took about 6 weeks to hear from. I forgot to mention in the original post that he has had 10 sweats, 1 neg, 1 pos, and 8 high borderlines. not in that order though. We have one doctor who said yes and then no and the other dr says atypical cf. I am so glad that I am not alone in this crazyness. At Betsy, I know other families that have the R117H and are dx and on treatments, never heard anything about it functioning enough? We started soon after the first round of testing was done but we still dont have a vest and he is taken as serious as he should be when he gets sick. I hope you have better results!
 

MylittleDobe

New member
Im not sure what testing was done....I do know that he had two papers, one for the DF508 test and the other one took about 6 weeks to hear from. I forgot to mention in the original post that he has had 10 sweats, 1 neg, 1 pos, and 8 high borderlines. not in that order though. We have one doctor who said yes and then no and the other dr says atypical cf. I am so glad that I am not alone in this crazyness. At Betsy, I know other families that have the R117H and are dx and on treatments, never heard anything about it functioning enough? We started soon after the first round of testing was done but we still dont have a vest and he is taken as serious as he should be when he gets sick. I hope you have better results!
 
1

1woodswoman

Guest
It's so affirming reading this forum topic! I have 1 N1303K gene, 2 borderline sweat tests, & had to change CF Centers & aggressively find the right doctors, to get the right tx's. My doctors believe that the other gene just hasn't been discovered & identified yet, so are now treating me as a CF patient. Also, extensive research is now showing that some carriers w/only gene can have symptoms, & is often called Atypical CF. If you search the NIH site, you will find many references to this. Atypical CF is recognized in Europe, & I believe also in Canada. I also believe that NIH has recommended that the European guidelines be adopted in the USA for diagnosing CF, which are much broader than diagnostic criteria in this country. But the politics here, esp. w/the CF Foundation, have resisted the acceptance of the broader expansion of the diagnosis, even though extensive Nat'l & Internat'l research supports it.

To the mother who has a child w/ the N1303K gene, this CFTR especially effects the Pancreas. Watch for signs of diarrhea & malabsorption, & if these sighs show up, ask for a Fat Elastace test, which may indicate Pancreatic Insufficiency - see a GI w/CF experience if this occurs. If this happens to the Exocrine system, then Digestive Enzymes usually need to be taken before each meal or snack. This gene can also effect the Endocrine system of the Pancreas, which can cause CF-related Diabetes - see an Endocrinologist w/CF experience for this. The gene can also effect other aspects of the digestive system - so be watchful. Symptoms can appear from childhood thru adulthood.

I still feel newly diagnosed, even though I've had some symptoms for over 35 years, I was just "confirmed" by the medical community as having Atypical CF last year, after I had been extremely sick for the last 3 yrs, & am still having digestion problems, even on digestive enzymes & Prandin oral med for the CFR Diabetes. I've found that learning as much as I can on as many sites on the Internet, & being very assertive w/ getting in to see the right specialty physicians (which are at least a 6 hr drive from where I live rurally), has been helpful for me.

Has anyone else been diagnosed as an adult? How are you coping w/it, what kind of responses are you getting from friends, & do you have any other suggestions for dealing w/it?
Has anyone had to move from a rural area to be closer to appropriate CF medical resources?
 
1

1woodswoman

Guest
It's so affirming reading this forum topic! I have 1 N1303K gene, 2 borderline sweat tests, & had to change CF Centers & aggressively find the right doctors, to get the right tx's. My doctors believe that the other gene just hasn't been discovered & identified yet, so are now treating me as a CF patient. Also, extensive research is now showing that some carriers w/only gene can have symptoms, & is often called Atypical CF. If you search the NIH site, you will find many references to this. Atypical CF is recognized in Europe, & I believe also in Canada. I also believe that NIH has recommended that the European guidelines be adopted in the USA for diagnosing CF, which are much broader than diagnostic criteria in this country. But the politics here, esp. w/the CF Foundation, have resisted the acceptance of the broader expansion of the diagnosis, even though extensive Nat'l & Internat'l research supports it.

To the mother who has a child w/ the N1303K gene, this CFTR especially effects the Pancreas. Watch for signs of diarrhea & malabsorption, & if these sighs show up, ask for a Fat Elastace test, which may indicate Pancreatic Insufficiency - see a GI w/CF experience if this occurs. If this happens to the Exocrine system, then Digestive Enzymes usually need to be taken before each meal or snack. This gene can also effect the Endocrine system of the Pancreas, which can cause CF-related Diabetes - see an Endocrinologist w/CF experience for this. The gene can also effect other aspects of the digestive system - so be watchful. Symptoms can appear from childhood thru adulthood.

I still feel newly diagnosed, even though I've had some symptoms for over 35 years, I was just "confirmed" by the medical community as having Atypical CF last year, after I had been extremely sick for the last 3 yrs, & am still having digestion problems, even on digestive enzymes & Prandin oral med for the CFR Diabetes. I've found that learning as much as I can on as many sites on the Internet, & being very assertive w/ getting in to see the right specialty physicians (which are at least a 6 hr drive from where I live rurally), has been helpful for me.

Has anyone else been diagnosed as an adult? How are you coping w/it, what kind of responses are you getting from friends, & do you have any other suggestions for dealing w/it?
Has anyone had to move from a rural area to be closer to appropriate CF medical resources?
 

Printer

Active member
Hi Woodswoman:

I was dx at age 47. I am healthier now than before dx. My friends know I have CF but very few have a clue as to what CF really is.

I'm glad u were dx, I'm sure that you will get better treatment now.

Bill
 

Printer

Active member
Hi Woodswoman:

I was dx at age 47. I am healthier now than before dx. My friends know I have CF but very few have a clue as to what CF really is.

I'm glad u were dx, I'm sure that you will get better treatment now.

Bill
 

JustDucky

New member
I am a late dx as well at 33. I am considered atypical CF as well, as I have one known mutation (can't remember what it is, not a common one though) and a variant from what I remember being told. I was tested for CF because I was culturing bugs that aren't in the normal population...PA and B cep to be specific. My primary doc was actually the one who got the ball rolling. When she suggested I get tested, I thought she was nuts..CF after all, is a child's disease, not something diagnosed as an adult. She persisted, I got sweat tests done, they came back at 48 and 50, twice (or was it 52...either way, high borderline)..
Growing up, I had severe asthma issues, especially in my 20's. I was hospitalized several times a year for respiratory issues....not once did they do cultures, they treated me empirically with IV's. I would improve, they would pull the IV and I would be sent packing....and this happened more times than I can count.

When I finally got the CF dx, I had diabetes as well. I also have digestive issues and was determined to be mildly pancreatic insufficient, sinus problems also plague me. And so ,even though I have a known mutation and a variant (I should make clear that the variant is questionable as far as being disease causing) and borderline sweats, I was diagnosed. I was devastated because I also had concurrent issues with my diaphragm and muscles, it appears that I have some kind of myopathy as well. It was a lot to digest and it took me some time to accept it and the multitude of treatments that comes with CF.

These days, I am treated not so much as an atypical CF'er, but as a classical CF. I have serious lung issues, my FEV hovers in the 30's and I suffer from constant infections requiring frequent IV's (lately, every 2 months or less). My pulmo is very aggressive, I am on hypertonic, pulmozyme, colistin, duonebs, azithromycin.......creon, every med that could possibly help right now. I often wonder how I would be today if I had been diagnosed earlier in life, when treatment could have been started and prevent some of the damage that is there today. But in the end, I am glad I am getting the appropriate treatment now and have a team that I trust and am so thankful for that.

As far as my friends/family goes....even today, they sometimes are in disbelief that I have CF and also say that CF is a kid's disease, that I couldn't have it. When they say that, I educate them, point them to sites that have reputable information (not outdated 80's info). My kids were tested for CF, just in case....with attention on my son because he had severe asthma as a young child. Thankfully, his sweats were negative as well as other tests so he is okay, just a carrier.

I live in a rural area, but I go to my pulmo who is about a hour and a half away. But if I had to, I suppose I would move closer to appropriate care, especially now that my lungs are so fragile.

I am glad you are finally getting the care that you deserve, it sometimes feels like an uphill battle getting doctors to even look at you. To be honest, I went through that with a few doctors and promptly dismissed them from my care until I found the ones that I have now, who take me seriously and are aggressive in my care. You have to do what you must to get good care, and if it means moving if it is at all possible, then it would be worth considering.

Jenn 40 w/CF
 

JustDucky

New member
I am a late dx as well at 33. I am considered atypical CF as well, as I have one known mutation (can't remember what it is, not a common one though) and a variant from what I remember being told. I was tested for CF because I was culturing bugs that aren't in the normal population...PA and B cep to be specific. My primary doc was actually the one who got the ball rolling. When she suggested I get tested, I thought she was nuts..CF after all, is a child's disease, not something diagnosed as an adult. She persisted, I got sweat tests done, they came back at 48 and 50, twice (or was it 52...either way, high borderline)..
Growing up, I had severe asthma issues, especially in my 20's. I was hospitalized several times a year for respiratory issues....not once did they do cultures, they treated me empirically with IV's. I would improve, they would pull the IV and I would be sent packing....and this happened more times than I can count.

When I finally got the CF dx, I had diabetes as well. I also have digestive issues and was determined to be mildly pancreatic insufficient, sinus problems also plague me. And so ,even though I have a known mutation and a variant (I should make clear that the variant is questionable as far as being disease causing) and borderline sweats, I was diagnosed. I was devastated because I also had concurrent issues with my diaphragm and muscles, it appears that I have some kind of myopathy as well. It was a lot to digest and it took me some time to accept it and the multitude of treatments that comes with CF.

These days, I am treated not so much as an atypical CF'er, but as a classical CF. I have serious lung issues, my FEV hovers in the 30's and I suffer from constant infections requiring frequent IV's (lately, every 2 months or less). My pulmo is very aggressive, I am on hypertonic, pulmozyme, colistin, duonebs, azithromycin.......creon, every med that could possibly help right now. I often wonder how I would be today if I had been diagnosed earlier in life, when treatment could have been started and prevent some of the damage that is there today. But in the end, I am glad I am getting the appropriate treatment now and have a team that I trust and am so thankful for that.

As far as my friends/family goes....even today, they sometimes are in disbelief that I have CF and also say that CF is a kid's disease, that I couldn't have it. When they say that, I educate them, point them to sites that have reputable information (not outdated 80's info). My kids were tested for CF, just in case....with attention on my son because he had severe asthma as a young child. Thankfully, his sweats were negative as well as other tests so he is okay, just a carrier.

I live in a rural area, but I go to my pulmo who is about a hour and a half away. But if I had to, I suppose I would move closer to appropriate care, especially now that my lungs are so fragile.

I am glad you are finally getting the care that you deserve, it sometimes feels like an uphill battle getting doctors to even look at you. To be honest, I went through that with a few doctors and promptly dismissed them from my care until I found the ones that I have now, who take me seriously and are aggressive in my care. You have to do what you must to get good care, and if it means moving if it is at all possible, then it would be worth considering.

Jenn 40 w/CF
 
1

1woodswoman

Guest
Thanks for all the great responses already! Ya'll are right about me trying to explain to my friends about having CF now, & I get a lot of blank stares. When I'm out in public, I try to put my best foot forward & not seem sick, but they are gradually beginning to see me when I'm not feeling well, & are beginning to understand.
Hardest of all, I have found it difficult to make plans, get things done when I need to, and worst of all, have not been at all reliable or dependable to my friends, because I never know when & for how long I'll be sick.

Besides being newly diagnosed, I'm also new to writing in forums/blogs/chats, & was wondering how do you chat when others are online, do you just read or do you respond to blogs, & what does it mean to be a friend on this website? Would anyone be interested in corresponding together, or being "CF buddies" if we do have things in common,to share, & if so, how is it for recommend doing it? 1woodswoman
 
1

1woodswoman

Guest
Thanks for all the great responses already! Ya'll are right about me trying to explain to my friends about having CF now, & I get a lot of blank stares. When I'm out in public, I try to put my best foot forward & not seem sick, but they are gradually beginning to see me when I'm not feeling well, & are beginning to understand.
Hardest of all, I have found it difficult to make plans, get things done when I need to, and worst of all, have not been at all reliable or dependable to my friends, because I never know when & for how long I'll be sick.

Besides being newly diagnosed, I'm also new to writing in forums/blogs/chats, & was wondering how do you chat when others are online, do you just read or do you respond to blogs, & what does it mean to be a friend on this website? Would anyone be interested in corresponding together, or being "CF buddies" if we do have things in common,to share, & if so, how is it for recommend doing it? 1woodswoman
 
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