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BTD Forums    Diet and Nutrition    Live Right 4 Your Type  ›  Secretor status = offpring - Likehood?
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Cristina
Tuesday, October 27, 2009, 11:28pm Report to Moderator Report to Moderator

SwamiX Explorer A2+; L(a-b+); MN,INFP, T/ R1b-M343
Ee Dan
Posts: 3,548
Gender: Female
Location: Sunny Coast,��QLD, Australia
Age: 62
I know it is an individual thing, but I wonder what the statistics say about secretors, producing secretors or non-secretors or vice-versa.

I am an A+ secretor, my husband is an A+ unknown.  My daughter is an A+ unknown.  What is the likehood of she being a secretor or non-secretor?

Do we know?




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Lola
Tuesday, October 27, 2009, 11:45pm Report to Moderator Report to Moderator

GT1; L (a-b-); (se); PROP-T; NN
Sa Bon Nim
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nope
it s a recessive gene


''Just follow the book, don't look for magic fixes to get you off the hook. Do the work.'' Dr.D.'98
DNA mt/Haplo H; Y-chrom/J2(M172);ISTJ
The harder you are on yourself, the easier life will be on you!
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C_Sharp
Wednesday, October 28, 2009, 2:40am Report to Moderator Report to Moderator

Teacher Rh+ Lewis: a+b-, NN,Taster
Sa Bon Nim
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Age: 53
Assuming a normal Caucasian individual there is about an 80% chance of being a secretor. Frequency of secretor status depends on where your originally are from (British Isles 74%, Sweden 80%, Italy 81%, ...), so you can look this up online for yourself and husband. Aboriginal Australians both are more likely to secrete (depends on tribe but often is around 97%) and secrete more blood type antigens than other secretors than most other secretors.

So not considering your secretor status daughter might have 80% chance of being secretor.




You have a 100% chance of being a secretor and your husband might have an 80% chance of being a secretor.

Since it is a recessive trait you could both be secretor and still have a nonsecreting child.

But the odds are such that she is most likely a secretor.








MIfHI                            I follow a SWAMI diet.
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Sharon
Wednesday, October 28, 2009, 8:04am Report to Moderator Report to Moderator

Rh+, Warrior, Started BTD 2007, Started Swami 2009
Kyosha Nim
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Location: New York, NY
Age: 35
I wonder, what parts of the world do non-secretors originate and what was the genetic reason that it became a genetic trait. Did secretors come first then non-secretors came after?
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C_Sharp
Wednesday, October 28, 2009, 6:03pm Report to Moderator Report to Moderator

Teacher Rh+ Lewis: a+b-, NN,Taster
Sa Bon Nim
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MIfHI                            I follow a SWAMI diet.
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Sharon
Wednesday, October 28, 2009, 7:04pm Report to Moderator Report to Moderator

Rh+, Warrior, Started BTD 2007, Started Swami 2009
Kyosha Nim
Posts: 1,041
Gender: Female
Location: New York, NY
Age: 35
C-Sharp, thanks for the link. I read it and pulled out this quote which got me thinking.

Quoted from " Secretion and Natural Selection"

"One means of selection is through haemolytic disease of the newborn. Women, mostly of group O, become immunized to the A or B antigen of a fetus, and this or subsequent fetuses are at risk from haemolytic disease of the newborn. Affected fetuses are preponderantly secretors; this is probably a genetic consequence of all or most immunizing fetuses being secretors. Selection against the secretor factor as well as against blood groups A and B is thus liable to occur. Similar processes of selection seem to operate through fetal loss by early abortion. It is suggested that counter-selection favouring secretors may result from certain epidemic infectious diseases."


This excerpt makes me wonder if Non-secretors have a better chance of surviving in the womb of a mother who creates antibodies against the fetus or is incompatible with the embryo's blood type  non-secretors don't have  their blood type readily detected in salivia etc.  Therefore the mother may be able to cary a non-secretor if she has immune responses to secretors?
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Ribbit
Friday, October 30, 2009, 1:22am Report to Moderator Report to Moderator

~W~A~R~R~I~O~R~ Defender, Survivor
Kyosha Nim
Posts: 8,156
Gender: Female
Location: Atlanta, Georgia
Age: 36
Well now you've gotten me wondering about secretor status and pregnancy sickness.


ISTJ, BTD since 5/05.  Battling chronic Lyme disease since ~1985.

"Everything is permissible for me, but not everything is beneficial..."  I Corinthians 6:12

Family: 3 As, 1 B, 1 AB, 1 O
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paul clucas
Saturday, October 31, 2009, 8:00pm Report to Moderator Report to Moderator

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Kyosha Nim
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Secretor / non-secretor survival rate, and the possible benefits of non-secretor status are often discussed in the Nonnie Clubhouse.  Secretors are very welcome to the discussion there!

Quoted from Sharon
C-Sharp, thanks for the link. I read it and pulled out this quote which got me thinking.

Quoted from " Secretion and Natural Selection"

"One means of selection is through haemolytic disease of the newborn. Women, mostly of group O, become immunized to the A or B antigen of a fetus, and this or subsequent fetuses are at risk from haemolytic disease of the newborn. Affected fetuses are preponderantly secretors; this is probably a genetic consequence of all or most immunizing fetuses being secretors. Selection against the secretor factor as well as against blood groups A and B is thus liable to occur. Similar processes of selection seem to operate through fetal loss by early abortion. It is suggested that counter-selection favouring secretors may result from certain epidemic infectious diseases."

This excerpt makes me wonder if Non-secretors have a better chance of surviving in the womb of a mother who creates antibodies against the fetus or is incompatible with the embryo's blood type  non-secretors don't have  their blood type readily detected in salivia etc.  Therefore the mother may be able to cary a non-secretor if she has immune responses to secretors?
Good point!  This would be a particular issue when a male Secretor is living in a largely Non-secretor population and is looking "to settle down".


My weight loss goal: 220 lbs.  A 6'4" dyslexic oddball: the size of a line-backer, the silhouette of Winnie-the-Pooh.
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geminisue
Saturday, October 31, 2009, 10:23pm Report to Moderator Report to Moderator

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Sam Dan
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with my first a girl I was sick once every evening
with my second a girl I was sick nine times a day through pregnancy
with my third a son I was not sick, at all!
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