Saturday, September 29, 2018

MORE ON THE PILL


A great photo
Two hippy chicks in the vinyl age

This must be big news, because it is being reported everywhere, even in the Malaysian Times.  A massive study of Danish women has shown that use of birth control pills containing estrogen and progesterone substantially reduces a woman’s chance of contracting ovarian cancer.  I wrote about this several years ago (http://ljb-quiltcutie.blogspot.com/2016/09/the-pill.html), but at that time it was only a “possibility”, but now you can call it a fact.  The Danish cohort was divided into three groups: those who had never taken the pill, those who had taken the original pill, and those that took a new-fangled pill with the proportions of estrogen and progesterone re-jiggered.  The results showed pretty conclusively that the older pill helped avoid ovarian cancer’ and the new formula did it even better.  Take this to heart, folks
.
I wish I had never had that vasectomy.   Think it through, guys.



and I could give you a half-dozen more

Tuesday, September 25, 2018

ASPIRIN NOT THE TOTAL MIRACLE DRUG I THOUGHT


Linda created this quilt for Margo and Phil Montague

It really seems that the grand debate about the health effects of aspirin will never end.  I have written about aspirin and cancer many times over the past few years: search of Myrl’sBlog turns up  15 references.  In general, aspirin seems to reduce the chance of developing cancers of many types. Now, however, comes some negative evidence.  A massive trial involving healthy elderly folks* turned up no overall longevity benefit from daily aspirin in small dosages/.  In fact, if anything, the non-aspirin control group had the better outcome.  There are lots of qualifiers, though, so read the NIH report.


However, as the focus of this blog is ovarian cancer, be sure to read this, too.


*Defined as over 70 for most of us, but over 65 for African Americans and Hispanics.

Monday, September 24, 2018

WHERE YOUR TAX DOLLARS GO


At my niece Florence's wedding
Linda is looking especially lovely, don't you think?
My mother is on Linda's right; my sister Susannah is on my left.

Ever wonder where your Federal tax dollars go?  Well, unless you are impossibly rich, dreadfully poor, or dead, the answer undoubtedly is yes.  No doubt a fair bit goes up in smoke, in the form of waste and/or mismanagement.  Lots, in my view, goes to fund stuff the Feds either can’t do or shouldn’t be doing.  But, of course, lots goes to things that are well worth doing.  Top of that list, again in my view, is work done by NCI, the National Cancer Institute; NCI probably is bloated, cumbersome, bureaucratic, and slow but its heart is in the right place and, by and large, it does good work.

So what? you ask.  Well, new NCI Director Dr. Norman Sharpless, has just released NCI’s Annual  Plan and Budget Proposal, aimed at Congress and the Trumpster.  It is a massive, detailed document which, if you have time to burn, you can read by clicking below.  I haven’t read it thoroughly myself as yet, so I will confine myself to reporting the grizzly fiscal highlights.  Next rainy day I will study it and report any important scientific highlights.  So…..

NCI is asking Congress for $6.522 billion for Fiscal 2020, of which $622 million is to offset inflation. This is an increase of $857 million over the current budget.

Of the current budget proposal, $195 million comes from the “Cancer Moonshot” program initiated under Obama and so far not terminated by you-know-who.  The Moonshot ends in 2023 and, if all goes according to plan, will expend $1.8 billion.

NCI both funds research at various universities and cancer centers throughout the country, and conducts research at its own laboratories.  (For a glimpse into how NCI research works, read my book review  http://ljb-quiltcutie.blogspot.com/2018/09/review-of-important-book.html)

For comparison, cost estimate of Trump's border wall - $33 billion.  For a modern aircraft carrier, $13 billion.  Cost of cigarette usage in the U.S., per year ~ $300 billion.

More, later.


Sunday, September 23, 2018

CLIFF NOTES FOR OVCA RESEARCH


TAKING A BREAK FROM CHEMOTHERAPY
I kid you not.  She was incredible.

Here is a handy summary of the state of our war against ovarian cancer, as of the moment.  Short, sweet, but not too complete.  (See, I am a poet, although you didn’t know it.)


To benefit from this blurb you  may need to be reminded of the nature and function of PARP inhibitors.  If so, give this a try:


Friday, September 21, 2018

EXOSOMES, EVOLUTION - and CANCER


Linda and a pitiful chestnut tree

How does this stuff come about?

Some new research from the University of Pennsylvania involves exosomes and their role in cancer.  Exosomes are, essentially, garbage bags tossed out of cells into the blood stream.  Or so they are usually characterized.  However, it appears that exosomes expelled from cancer cells (this research concerns melanoma) also are bristling with proteins called PD-L1, which bind to a receptor called PD-1 found on the surface of cytotoxic (cell-killing) T cells of the immune system.  This binding effectively neutralizes the T cell, thus facilitating the health and well-being of the tumor!  What a stupid situation! 

This work is only in its baby-to-toddler stage, but it promises to be a useful technique when it grows up.  But I am mystified:

How in the dickens does something like this arise?  My rudimentary understanding of evolution tells me that new traits in animals and plants arise spontaneously, and randomly, and that those modifications that survive and prosper are those that make a positive contribution to the entities’ prospects for reproduction.  But cancer cells make a profoundly negative impact on survival.  Also, the cancer itself does not reproduce in any sense of the term that I comprehend, hence any tricks that a particular cancer cell might develop to protect itself cannot be transmitted to cancer cells in another creature.  Yet here you have it: cancer cells tossing garbage sacks into the bloodstream, but sacks studded with little IEDs capable of deactivating any immune cells they might encounter that could do damage to the tumor.

Maybe there is a devil, after all.

https://www.cancer.gov/news-events/cancer-currents-blog/2018/exosomes-tumors-evade-immune-system?cid=eb_govdel

Saturday, September 15, 2018

REVIEW OF AN IMPORTANT BOOK


Linda at her mother's apartment
Friendship Village, Kalamazoo, Michigan

I dare you to read this book!  I double-dare you!  I don’t think you have the guts!

The book in question was written by Dr. Steven Rosenberg, long-time leader and resident star of the National Cancer Institute (NCI).  Steve, as we are told to call him, is about 78 years old at this writing (2018) and still working, as far as I can determine.  OId cancer researchers never retire, it seems – they just die in the saddle, riding resolutely into the unknown.  Good for them!  Steve was aided in the assembly of this book by John M. Barry, a professional science writer and author of a moderately
good book on the enormously lethal flu epidemic of the early 20th century.  I have been profiting from Barry book, but I set it aside to reread The Transformed Cell to prepare for writing this review.  I’m glad I did; I came to understand a lot of stuff the second time through that had mystified me on original encounter.  Maybe if I try it a third time I will figure out what in heck LAK cells are.

This book is largely an account of Steve’s professional development from childhood to the 1990s, when the book was written.  Steve is, to say the least, not an ordinary guy.  In addition to being smarter than the rest of us, he works a heck of a lot harder.  He also has an unprecidented ability to withstand, learn from, and rebound from a host of calamitous failures.  If I had experienced even 10% of the crushing setbacks he has endured I would have crawled under my desk, sucked my thumb for a week or so – and then taken up professional bowling.  Not Steve: he kept right at it, for decades – and finally was one of the midwives – possibly the most important midwife – at the birth of modern immunotherapy.

So, anyway, the book begins with Steve, as a young doctor working for the VA, encountering a gritty old cuss named James DeAngelo, who had once been riddled with intractable cancer and sent home to die – but didn’t.  Steve groped long and hard for an explanation that made sense within the context of 1960s medicine, but couldn’t find one.  The only possibility seemed to be that Mr. DeAngelo’s immune system had turned on the tumor, and killed it.  At the time that was considered impossible; cancer cells were “self”, and the immune system only attacked “non-self”.  Dr. Steven Rosenberg was driven to the suspicion that this wasn’t entirely true.  He spent the rest of his career working on a solution to what might be called the DeAngelo conundrum.   And, by God, he found it.

This book conducts you through the history of Rosenberg’s tussle with immunotherapy, beginning with a simple attempt to save a dying cancer victim by giving him a shot of James DeAngelo’s blood – to, decades later, experimenting with immune system cells “transformed” by modifying their DNA using retroviruses.  The trek from transfusion to “transduction” is too long and convolute to attempt to summarize here.  You should buy the book (<$5.00 at Abebooks) and spend some serious time with it.  You will learn a lot of important stuff – especially if you read it twice.

So why do I think you ain’t got the guts to stick with this book?  Well, it’s because much of the story involves people you get to know and care about – all of whom die.  For decades, they all die.  Dozens of them.  (Not to mention, of course, thousands of mice.)  It is hard on the reader.  What must it have been like on Rosenberg and his team?

I can’t help but end with a personal note.  This book was published in 1992.  Linda died of ovarian cancer in 2011 – 19 years later.  During her struggles with the disease nobody ever breathed the word “immunotherapy”, nor suggested any kind of clinical trial.  Linda would tell me to let all that go, so I will try.

Monday, September 10, 2018

BREAST CANCER ATTACKS A ZEBRA FISH!


AN EARLY CAMPING TRIP
The tent still exists.
The truck is long gone.
Linda lingers in our memories; forever, I hope.

The new technology being brought to bare on cancer research is mind-boggling.  Here is a short article on a development that allows researchers to actually SEE how a cancer cell makes its way along a blood vessel – caught, you might say, in the act of metastasizing..  The videos show breast cancer cells attacking a zebra fish.  Zebra fish, you will remember, are transparent – making them very useful in the lab, poor little devils.  Anyway: take a quick peak at this article.


Sunday, September 2, 2018

DISCOURAGING


Still "climbing" mountains after all these years

Here is a brief summary of the current state of ovarian cancer treatment, written for the layperson.  Pretty depressing, really.


But we will continue the struggle!