blood type and cancer risk

5.20.25 ~ North Carolina Botanical Garden
‘peve minaret’ bald cypress

I can’t stop thinking about something a naturopathic oncologist told my sister, who was recently diagnosed with endometrial cancer, the same kind of cancer I had. Apparently having blood group A is associated with an increased risk of cancer, and blood group O is associated with a decreased risk of cancer. Both my sister and I have type A blood.

wild quinine

Coincidentally, a few days after learning this, while going through another one of my family history boxes — I’m now on box #6 of the 14 — I found my mother’s blood type A identification card from the Dana-Farber Cancer Institute, where she was receiving treatment for metastasized breast cancer in 1990. She died when she was 59, in spite of four years of surgery, radiation and multiple chemotherapies.

goldenseal

As I was pondering the significance of now knowing her blood type, it hit me that her father, my grandfather, had prostate cancer. (I have no way of discovering what his blood type was.) With some aggressive treatments he survived his cancer and lived to the age of 95.

bigleaf magnolia

And then I started wondering about my grandfather’s parents. Locating his father’s death certificate I discovered that he died at age 75 of adenocarcinoma of the transverse colon, metastasis to liver. He had surgery in August of 1948 and died in July of 1949.

apple cactus

Finding these connections for four generations in a row is unsettling, as looking closely at genograms can often be. If I could trace it I wonder how far back the cancer line would go. All my children have type O blood so likely they will be spared from this specific cancer risk factor.

apple cactus

The gene for type A blood is dominant, and the gene for type O is recessive. Which means I have a recessive O gene that I passed on to my children. (They got their other O gene from Tim. One needs two O genes to have type O blood. Tim also has type O blood so that’s the only kind of gene he could give them.) It surprises me that none of them got the dominant A gene from me because the law of averages suggests that half of my children could have received it and had type A blood!

bulltongue arrowhead

Until my sister consulted one, I never knew that naturopathic oncologists existed. After witnessing the nightmare I’m living through due to radiotherapy aftereffects she is not interested in submitting to the same recommended treatment for her cancer. We both are of the mind that sometimes, for some people, quality of life is more valuable than a prolonged quantity of life. It will be interesting to see what things we will learn about other treatments from this alternative, integrative physician.

golden marguerite

Meanwhile, the current administration continues its efforts to cut funding for health care and cancer research. And now this:

If you’re under 65 and don’t have a chronic condition, there’s a very real chance you won’t have access to a Covid-19 vaccine this fall. Much depends on what happens next month. ACIP could defy the FDA and recommend vaccines for broader use, but that would be risky. We’ve never been in this situation before. ….. This isn’t about whether everyone needs a yearly Covid-19 vaccine—that’s a legitimate, ongoing scientific debate, and one ACIP was already tackling in June. This is about how decisions are made—and who gets to make them. FDA political appointees are sidelining expert panels, bypassing transparency, and turning public health into a performance. That might fly in other arenas, but shouldn’t when it comes to people’s health and daily lives. ….. Vaccine decisions must be rooted in evidence, debate, and transparency. ….. If this is the new model, we should all be alarmed.
~ Katelyn Jetelina
(Your Local Epidemiologist, May 21, 2025)

silver dollar eucalyptus

Closer to home, last summer I endured three episodes of seed tick bites on my legs following walks in the botanical garden. I thought I had solved the problem by using recommended permethrin as a repellent but when I took a walk there on Tuesday I was attacked again and now have 9 bites. I’m done! The pictures in this post are not worth the price I’m paying to have gotten them!

chamomile

my grandfather

Grandfather & Barbara ~ Dennisport, Massachusetts
photo of Grandfather & me, taken by Larisa

When we went down to visit Larisa & Dima last month, I was pleasantly surprised to find this picture of my grandfather and me pinned to their wall. Larisa must have taken it on one of our many trips to Cape Cod to see him, sometime between 1996 and 2001, I suspect closer to 1996. In either case, Grandfather was in his 90s when this was taken.

John E. White, my grandfather
John E. White

But I want to tell a story about a very special time Grandfather & I had together, after my grandmother died and he came to visit me.

Grandfather had a mystery in his family history, a well-guarded secret that I discovered while doing some research. His father, Samuel, who married and settled in Abington, Massachusetts, would not answer any questions his sons asked him about where he was born or who his parents were. But, one day, he relented a little and decided to take his sons to meet their grandfather, William White, who lived in Old Mystic, Connecticut.

sextant
sextant

Grandfather remembered coming to Mystic by train, as a small boy, with his father and his two brothers. From Mystic they took the trolley to Old Mystic and then walked “a great stretch” to his grandfather’s house. The boys slept in the attic and they saw a sextant stored there. The next day they went clam digging. Their grandfather, William, had a wife who was not their grandmother, and they were instructed to call her, “Aunt Martha.” It was the only time they ever went to visit their grandfather.

When Samuel was a child, he was told his mother had died. He did not get along with his stepmother (Martha), so he ran away as a  teenager. But doing some research I discovered the following about his mother, Ellen, in The Stonington Chronology 1649-1949, August 1865:

A scandalous month-while Wm M White of Wolf Neck, Stonington, was on a fishing voyage, his wife eloped with a gay deceiver named Pendleton who is also a deserter from the regular army. She left 2 children, one 6 mos. old, and took with her $500.

Samuel M. White, my great-grandfather
Samuel M. White

This was at the end of the Civil War. It seems William & Ellen reconciled for a while after this incident, and had three more sons, but were finally divorced on 26 September 1876, when Samuel, the youngest was three years old.

I also found Ellen four years later, on the 1880 census, age 38, living in the Poor House of Stonington, claiming to be “a widow,” and living there with her were two young illegitimate children, born after she was divorced from William. Their birth records contain statements from William denying paternity.

I often wonder what my 2nd-great-grandparents were like. I don’t feel I can judge Ellen – perhaps William was cold or abusive and she felt driven to find love and comfort elsewhere. Or perhaps she was the irresponsible one, or most likely, they were poorly matched. It’s all very sad and Grandfather was not too pleased to hear about it.

1958 ~ Barbara & Grandfather
Barbara & Grandfather

William White’s house is just a few miles from where I live now. When Grandfather was visiting me in the summer of 1999, I asked him if he would like to see the house and he was thrilled with my proposal. After we drove down the driveway I decided to knock on the door and ask if the owner would mind if we took some pictures of the house, hoping they might offer to show us the inside, too. No one answered the door but I could hear two women’s voices in a nearby swimming pool. I tentatively found my way over to the pool and did my best not to startle them with my presence.

At first they were puzzled but when I finally managed to explain why we were there they were very excited to come meet my grandfather, who was waiting patiently in the car. They graciously invited us inside and showed us around and explained what changes and additions had been made in recent years. I could tell Grandfather was taking it all in and was deeply moved.

A few days after I drove him home I received a wonderful thank you letter from him. He said his whole being was bubbling with gratitude for the gift I had given him that day. It seemed like a dream to him and he couldn’t believe he had actually been there.

I still miss my grandfather terribly – losing him was one of the hardest things I ever went through. He was the adult who understood me the most, who supported me when I was a passionate, naive and impulsive teenager, and who would listen to my spiritual longings and doubts without judgment. He was a man of quiet strength and wisdom, a gentle spirit.

Happy Birthday, Grandfather!

love, bicycles, canoes

JohnEmmaWhite2
John & Emma White

These are my maternal grandparents and I had never seen these pictures before Saturday. While Tim & I were out shopping, getting ready for our daughter’s wedding, my cousin was scanning and sending some pictures he found of our grandparents in their younger years. Only today did I notice that June 8, Saturday, was their birthday. Thank you so much, Matthew, for remembering!

EmmaHoneyJohn2

Grandfather was born June 8, 1905, and Grandmother was born June 8, 1906. They were married 30 November 1929. I never knew my grandfather smoked a pipe – but I always knew he was a perfect gentleman! The dog was their beloved pet, Honey.

WhiteFamily
White Family

Above are my grandparents and their two children, my mother and my uncle.

JohnBettycanoe2

It’s hard to make them out, but my grandparents and uncle are sitting on the stone wall and my mother is in the canoe. I see her passion for canoeing started in her childhood. She took us canoeing often when my sister and I were children. I’m in a very sentimental, wistful, thoughtful mood this week – five days before the wedding!