How about being happy and hopeful as well as healthy?

The couple had been trying to conceive for 5 years unsuccessfully. The tension and anxiety in the relationship was palpable and strained. They had spent well into the 5 digits to have a child with test tube baby technology (IVF) and yet were still not pregnant. His vasectomy reversal had also failed them. And they were going to try one more time, just once, with me, before calling it quits.

When he came to me for care, he was frankly depressed. Out of money and full of debt, close to losing his job in this economy and in a strained relationship hanging on by a thread, he sat across from me. He looked terrible. “Can you help?” he asked me.

Well I did help. I reversed his vasectomy again and it worked. Fast-forward 9 months and a birth announcement arrives in the office from the couple with a long personal note of thanks on the back. But one line really struck me:

”Looking at her, sleeping quietly, I see her future as an astronaut, the President, a doctor, a lawyer or anything else that she wants to be. She can be or do anything!”

Absolutely unbridled hope and enthusiasm was infusing a mind once filled with almost unfathomable despair. All this change, nine months and one baby ago. Wow!

Talk about a biological drive. Reproduction easily ranks up there with breathing and eating. Not for everyone of course, but for many. I am quite sure that if you surveyed infertile couples about their quality of life with infertility, as has been done in patients with cancer, you would find these diagnoses equally impactful. I have no doubt many of my patients would give up five healthy years of their life to have a child. Maybe even 10. Just because it cannot be assessed by a blood pressure cuff, a blood test, or a scar does not make infertility any less important an affliction.

And yet, despite its profound impact, its ability to tear apart relationships, crush self-esteem and slow down an otherwise productive couple to a grinding halt, infertility is not really considered a disease in many societies, including ours.

Want a more productive and healthier society? Cure infertility. And what about something else that this world could use a lot more of, as expressed by my patient: the resurrection of those elemental feelings that lead us to live good lives and to make the world a better place for those who will follow us.

Throwing a wrench in the machinery of sperm production...

I have to admit, the testis “mapping” procedure that I developed some years ago has truly been a workhorse technique for my male infertility practice. And for the practices of other male reproductive specialists around the world as well. Creating fertility from sterility. I bring it up again because it is gathering more attention in the press as this week we recently published another paper that highlights its utility—this time in cancer survivors.

In a related study from 2002, we published that the majority of men who had been exposed to chemotherapy for cancerous or non-cancerous disease and who were “sterile” afterwards have sperm in the testis that can be safely used for fatherhood with assisted reproduction. Fine needle aspiration (FNA) mapping was employed in this study and its potential to help cancer survivors to conceive was convincingly demonstrated. The recent paper expands that group of men to include those who received not only chemotherapy and radiation therapy but also a relatively extreme treatment for certain cancers termed bone marrow transplantation.

Let’s back up a minute for a biology lesson. How does chemotherapy affect a man’s fertility? Well, the basis of its effectiveness in curing cancer is that chemotherapy preferentially kills rapidly dividing cells more than slowly dividing cells. In general, cancer cells divide more rapidly than do normal body cells. The term for this difference in cell susceptibility is “therapeutic index”. Unfortunately, sperm are also produced very rapidly (about 1200 sperm are made every heartbeat) and therefore sperm precursor cells are also very sensitive to the effects of chemotherapy. Think of sperm production as a rapidly turning set of gears and chemotherapy as a wrench being thrown into them. Ka-chunk! Machine comes to a loud and crashing halt. Sperm production is over, or tremendously slowed down. The same action is true for radiation therapy treatment.

Now, imagine not just one small wrench being thrown into the gears, but a huge wrench (or many wrenches) being suddenly thrown into the machine of sperm production. The result? More damage to the sperm-making machinery and a much higher chance of sterility. This is the essential difference between the patients from the 2002 paper on mapping and the most recent one. The cancer survivors in this week’s paper got blasted with the heaviest doses of chemotherapy imaginable, and topped off with a dollop of radiation therapy just to be sure. Hard to believe, but they also had usable pockets of sperm in their testicles. And normal babies as a result.

So, with techniques like FNA sperm mapping, there continues to be hope and good news about fertility after the storm of cancer treatment has passed.

Heirlooms for the species.

As a living, breathing being on this good earth, we tend to take things for granted. The ability to have offspring can be one of them. That is, until the day that a serious medical condition like cancer rears it ugly head and puts childbearing at risk. In addition to the sterilizing effect of cancer treatments, the mad rush to treat the disease often marginalizes efforts to preserve fertility. Fire all the canons and check for collateral damage later.

Fertility preservation seeks to protect men, adolescents and children from a common, serious and impactful side effect of cancer treatment: infertility. The goal of fertility restoration is to empower patients who are cured and potentially infertile to bear children. These related fields have burgeoned recently because medical care is now shifting from curing cancer to improving the quality of life among survivors. And without a doubt, for many, fertility is a key quality of life issue at some point. Thankfully, exciting new methods of restoring fertility have already been developed and even newer technologies are under study.

Classic techniques for fertility preservation in men include gonadal shielding and sperm banking. Gonadal shielding uses lead-based devices to protect the testicles from being struck directly by sterilizing radiation treatment. Sperm banking is the process of freezing healthy sperm before cancer treatment begins for later use to conceive. But there is more. For patients who are too young to bank sperm, for those who have precious little time to bank sperm, or for those who have no ejaculated sperm to bank, testis sperm retrieval by biopsy (TESE) or needle aspiration (TESA) for banking is now possible before cancer treatment. In fact, in some cases of testis cancer, it is possible to remove only the cancerous nodule instead of the whole testis, or to freeze sperm from the testicle after it is surgically removed. These are now routine ways to preserve fertility in men.

Fertility restoration for men has also seen real advances lately. Sperm “mapping” is an innovation that I developed for men who survive cancer treatment but have no sperm in the ejaculate. It non-invasively and non-surgically deciphers whether there are small numbers of mature sperm in the testis, too few to get into the ejaculate, but usable nonetheless. In men who sustain nerve injury from cancer surgery and who are unable to ejaculate, a special medical instrument can produce an ejaculate for fertility purposes in a process termed electroejaculation. Techniques such as these are valuable tools to help men deemed “sterile” after cancer treatment to become fathers.

One of the most exciting areas of fertility restoration involves stem cell technology. Yes, the “promise” that we have all heard about stem cells curing disease will likely find its way into the fertility field as well. In pre-pubertal boys with cancer, ejaculated sperm is not present. Despite this, it may be possible to freeze the early stem cells from the testicles of boys before sterilizing treatment. After thawing, these “adult” stem cells may later be used to create sperm after further growth in a Petri dish or after transplantation back into the same individual. Also on the horizon is our ability to take skin cells from a sterile man, convert them into an embryonic-like stem cells and then “drive” these cells to become mature sperm in a dish–a true “artificial testicle.” So, with the belief that hope can cure misery, the world of science has taken fertility research from science fiction to reality. Not convinced? Stay tuned!