By Ericka Randazzo (G3)
Finding Joy at the Intersection of Science, Medicine, and Mentorship
Dr. Fred Lamb’s path to becoming a physician–scientist was anything but linear. Rather, it was shaped less by formal pipelines and more by curiosity, serendipity, and an enduring love of discovery – qualities that continue to define his career decades later.
Lamb’s earliest exposure to science came long before he could articulate what research was. Growing up at the University of Michigan, he spent time in research laboratories while his father, originally a commercial artist, returned to school to pursue medicine. As a child, Lamb tagged along to the lab where his father worked, mesmerized by experiments, friendly scientists, and ever curious about the “why” behind physiologic processes. Those early impressions stayed with him.
When it came time for college, Lamb gravitated naturally toward research. As an undergraduate, he joined a hypertension lab that studied mineralocorticoid-induced blood pressure changes. Initially, the majority of his time was spent performing the unglamorous but essential tasks of animal care. The lab’s work – using pig models to analyze the relationship between sodium retention and vascular inflammation – was ambitious, technically challenging, and, in hindsight, emblematic of the era’s evolving physiological thinking. What mattered most, however, was that Lamb was hooked. He found joy in the lab and never left.
After graduation, Lamb stayed on as a research technician, deepening his experimental skills and contributing substantially to projects that would later form the backbone of his PhD work. At the time, however, the idea of pursuing an MD-PhD did not seem realistic. “I thought there was no way in hell I’d get into something like that,” he recalls. So, he shut the door on the pursuit of an MD-PhD pathway and didn’t apply.
Or so he thought the door was shut. During his first year of medical school, the director of the Medical Scientist Training Program (MSTP), aware of Lamb’s extensive research background, encouraged him to apply for a newly available slot. Lamb did – and was rejected. He assumed the door had once again closed.
Then chance intervened. During his second year of medical school, Lamb ran into the MSTP program coordinator in the hallway. “Where is your MSTP application?” she asked. Her question prompted him to apply again. This time, he was accepted. In his words, he “backdoored” into the program at a time when formal MD-PhD pathways were still in their infancy. If the door keeps closing, look for a backdoor.
For his PhD, Lamb joined the laboratory of a young investigator who had previously been a postdoctoral fellow in his undergraduate lab. It was a fortuitous match. As his mentor’s first graduate student, Lamb studied vascular physiology, focusing on the ion channel mechanisms underlying smooth muscle contraction in hypertension. His work challenged prevailing models, proposing that chloride currents, not potassium channel inhibition, played a central role in depolarization and contraction.
That foundational interest evolved over time into a broader focus on vascular inflammation. Lamb became increasingly convinced that hypertension and atherosclerosis were not merely diseases of altered contractility, but fundamentally inflammatory conditions. His later work explored how specific ion channels physically associate with NADPH oxidases to create highly localized redox signaling domains, thus allowing cells to direct oxidative signals precisely rather than indiscriminately damaging surrounding structures.
This research trajectory, which spans electrophysiology, inflammation, redox biology, and aging, remains central to Lamb’s lab today. His group now investigates how early-life inflammatory insults shape lifelong vascular health, testing the hypothesis that many so-called “adult” diseases originate in childhood—or even earlier. Using innovative animal models, they aim to identify molecular signatures of vascular inflammation long before overt disease develops.
While science was a constant, Lamb’s clinical path required its own series of decisions. Medicine had always been part of his identity; he watched his father train as a physician and found the process inspiring. Pediatrics, in particular, resonated with him. “I’m much more comfortable taking care of kids,” he says. “I don’t enjoy interacting with adult patients. I like focused problems, not a list of twenty chronic issues.”
Initially drawn to cardiology because of his background in cardiovascular physiology, Lamb pursued pediatric cardiology but soon realized that outpatient clinic was not his calling; it didn’t truly feel like “home.” Critical care, by contrast, offered the intensity, immediacy, and problem-solving he craved and enjoyed. In the early 1990s, before pediatric critical care was widely established, Lamb joined a small group of faculty to help build a new pediatric ICU division at the University of Iowa. He later became division head, witnessing firsthand the maturation of pediatric critical care into a structured and essential specialty.
Many of Lamb’s career decisions were shaped by family considerations as much as professional ones. He completed residency at Michigan to support his wife’s career and chose fellowship at Iowa in part because it offered the country’s only T32 training grant in pediatric cardiology, thus ensuring protected research time. Practical realities mattered too: Iowa City, unlike Boston, was a place where a growing family could thrive.
After fellowship, personal circumstances kept Lamb in Iowa City, where he transitioned fully into critical care while continuing his research program. Over time, life brought new chapters – divorce, remarriage, and raising six (yes, SIX!) children – but Lamb remained committed to continuity, both for his family and his work.
In 2011, with his youngest child graduating high school and an Iowa winter reminding him of the limits of endurance, Lamb accepted a position at Vanderbilt. The move offered new opportunities for leadership, mentorship, and scientific collaboration—and, as he jokes, warmer weather.
Today, Lamb plays a key role in mentoring trainees navigating the often-daunting physician–scientist pathway. His advice is refreshingly simple: choose what brings you joy. “People make choices because they think something will be good for funding or prestige,” he says. “But if it’s not fun, you won’t stick with it.”
Equally important, he encourages trainees to “find your people”—the clinical and scientific communities where they feel most at home. Lamb himself briefly considered pathology for pragmatic reasons before realizing, after attending a few autopsies, that it was not where he belonged. Trusting that instinct, he believes, made all the difference.
Looking back, Lamb attributes much of his success to mentorship, curiosity, and being open to opportunity. “If you’re lucky enough to find a mentor who loves the lab every day,” he says, “it can shape your entire career.” His own journey – spanning decades of discovery, patient care, and guidance – stands as a testament to that philosophy. In a landscape where career paths are increasingly formalized, Fred Lamb’s story is a reminder that there is still room for serendipity – and that following what excites you may be the most reliable compass of all. Lead with JOY.