Clarivate’s Highly Cited Researchers list is an annual publication that identifies scientists and social scientists who have demonstrated outsized impact within their research domains through a combination of extensive publication and extraordinary citation metrics. The exhaustive selection process highlights those researchers whose published work ranks within the top 1% by citations for their respective fields over the previous 11 years, underscoring not only influence but also the integrity and reproducibility of their contributions to scientific knowledge.

This prestigious designation is not merely a reflection of citation counts but embodies a holistic assessment incorporating quantitative bibliometrics, qualitative review, and expert judgment to ensure the recognition of truly groundbreaking research. Being named to this list signifies that a researcher’s work has garnered sustained attention and has deeply influenced the trajectory of their scientific discipline, marking them as leaders whose findings have shaped research agendas and clinical practices worldwide.

Within this competitive and global context, Georgia State University’s Institute for Biomedical Sciences proudly counts two leading figures among its faculty who exemplify this highest standard of research excellence. Regents’ Professor Andrew Gewirtz and Distinguished University Professor Lanying Du have each secured places on the 2025 Highly Cited Researchers list in the coveted cross-field category, underlining their versatile and broad-ranging scientific impact across multiple intersecting disciplines.

Professor Andrew Gewirtz, whose scholarly work spans a wide array of biomedical fields, has been recognized consistently from 2022 through 2025. His cross-disciplinary influence is emblematic of an expansive research portfolio that transcends traditional boundaries, impacting areas as diverse as immunology, microbiology, and gastrointestinal physiology. Gewirtz’s ability to integrate complex biological systems insights has advanced understanding of disease mechanisms and opened new therapeutic avenues.

Equally distinguished, Professor Lanying Du continues to solidify her reputation as a towering figure in biomedical science. Listed on the Highly Cited Researchers roster since 2021, Du’s expertise has been acknowledged across both microbiology and cross-field categories, reflecting her prolific contributions at the interface of virology, immunology, and molecular biology. Moreover, her inclusion in Stanford University’s top 2 percent most-cited scientists for multiple consecutive years further attests to the enduring significance and wide-reaching impact of her research.

The emphasis on cross-field categorization for both Gewirtz and Du highlights a critical trend in contemporary science: the rising importance of interdisciplinary approaches that leverage techniques and insights from several domains to tackle complex biological questions. Their work exemplifies how bridging distinct fields fosters innovation, accelerates discovery, and enhances the translation of fundamental science into clinical applications.

In the broader landscape, the 2025 Highly Cited Researchers list comprises 7,131 awards granted to 6,868 researchers hailing from 60 countries. This global assembly reflects science’s international fabric and the collaborative nature of knowledge generation. These honorees represent a minuscule fraction of the global scientific community—approximately one in every 1,000 researchers—underscoring the exacting standards and exceptional achievements required for such inclusion.

The methodology underpinning the selection extends beyond mere citation tallying; it employs Clarivate’s Web of Science Core Collection to identify publications with exceptional citation performance, followed by rigorous data analytics and peer evaluation. This process ensures that the honored researchers are those whose scientific contributions have demonstrable, broad-scale influence that galvanizes further research, informs policy, and impacts public health outcomes.

For Georgia State University, having faculty members continually recognized on this list strengthens its standing as a hub of cutting-edge biomedical research. It reflects strategic investments in research infrastructure, interdisciplinary collaboration, and robust mentorship that empower scientists to produce high-impact investigations addressing urgent biomedical challenges, particularly in infectious and gastrointestinal diseases.

The work led by Gewirtz, for example, delves into the complex interplay between the gut microbiome and systemic immune responses, elucidating mechanisms that underpin chronic inflammatory conditions and informing development of microbiota-targeted therapies. Conversely, Du’s research advances understanding of viral pathogenesis and host immune defense mechanisms, contributing to vaccine development and antiviral strategies.

This confluence of expertise is pivotal in an era where infectious diseases and gastrointestinal disorders remain pervasive public health concerns globally. Their groundbreaking research not only advances fundamental biomedical science but also holds promise for transformative clinical applications that will improve patient outcomes and resilience against emerging pathogens.

As scientific inquiry increasingly demands collaborative, cross-disciplinary frameworks, the accomplishments of these researchers illustrate the power of integrative thinking and persistent innovation. Their recognition by Clarivate serves as both a testament to individual brilliance and a beacon inspiring emerging scientists within the biomedical community.

Ultimately, the inclusion of Professors Andrew Gewirtz and Lanying Du in the 2025 Highly Cited Researchers list signals a pivotal contribution to the global scientific enterprise. Their work exemplifies research excellence, influence, and leadership in the pursuit of knowledge that drives forward human health and well-being on a worldwide scale.

Subject of Research: Infectious diseases, gastrointestinal disorders, biomedical sciences

Article Title: Georgia State University Researchers Among World’s Most Highly Cited Scientists in Biomedical Sciences

News Publication Date: 2025

Web References:

• Institute for Biomedical Sciences at Georgia State University: https://biomedical.gsu.edu/
• Highly Cited Researchers 2025 by Clarivate: https://clarivate.com/highly-cited-researchers/
• Web of Science Core Collection: https://clarivate.com/academia-government/scientific-and-academic-research/research-discovery-and-referencing/web-of-science/web-of-science-core-collection/

Keywords: Infectious diseases, Gastrointestinal disorders, Biomedical sciences, Highly cited researchers, Cross-field research, Microbiology, Immunology, Molecular biology, Scientific impact, Research excellence

The comprehensive study scrutinized the career trajectories of 1,132 Russian PhD graduates from the year 2012, focusing on those specializing in physics, biology, chemistry, and mathematics. Using quantitative indicators of scientific output—including the number of publications indexed in international databases, citation metrics, and the frequency of articles published in first-quartile (Q1) journals—the research probed how remaining at one’s doctoral institution versus moving to a different university affects early-career productivity. Notably, the analysis was conducted over an eight-year post-graduation window, providing a medium-term perspective on academic development and output.

One of the most striking findings was that 61% of these researchers exhibited academic inbreeding by staying at their original universities. However, on average, those who transitioned to different institutions showed heightened research productivity. Specifically, mobile scientists were not only more prolific in publishing but also more successful in having their work accepted in prestigious journals with higher citation counts. This differential points toward the role of institutional mobility as a catalyst for scientific impact, underscoring potential benefits accruing from diversified academic environments and exposure to broader professional networks.

Delving deeper, the study revealed that the adverse effects of academic inbreeding are most pronounced in universities lacking special status—namely, those which are not federally recognized research institutions nor beneficiaries of government-supported science programs. In these settings, early-career researchers remaining at their original universities published on average 34% fewer Scopus-indexed articles compared to their more mobile peers. Moreover, their likelihood of producing articles in top-tier journals was nearly halved. Such disparities are indicative of a self-reinforcing cycle, where constrained scientific activity and limited resources at the institutional level might perpetuate subdued research agendas and hinder academic growth.

Victoria Slepykh emphasizes the critical influence of institutional environment and infrastructure. At universities without substantial research funding, equipment, or collaborative networks, early-career researchers face difficult conditions that restrict their ability to excel. By remaining embedded in such insular settings, they are more likely to reproduce existing academic norms and standards rather than challenge or advance them. The absence of diverse professional experiences further exacerbates challenges in competitiveness and innovation relative to peers who seek opportunities elsewhere.

Conversely, the scenario is notably different at prestigious, research-intensive institutions. Here, academic inbreeding appears to exert minimal negative impact on productivity. Such universities tend to provide a stimulating research environment furnished with advanced laboratories, vibrant research teams, stable inter-institutional collaborations, and inclusion in large-scale projects. These resources create conditions conducive to sustained scientific output irrespective of whether a researcher has moved or stayed post-PhD. Slepykh suggests that the richness of these environments serves as a buffer against the potentially isolating effects of inbreeding, enabling scientists to thrive even within their alma mater’s confines.

Further nuance emerged when focusing on a subset of the most productive researchers—defined by those whose publication counts exceeded the median, ranging from four to six papers within eight years after obtaining their doctorate. Within this highly productive group of 417 individuals, the incidence of academic inbreeding was lower at 56%. Importantly, academic inbreeding’s influence on productivity in this cohort was generally marginal and manifested predominantly among scientists working in regions with saturated academic labor markets. This observation sheds light on the interplay between regional academic ecosystems and career mobility choices, suggesting location-specific contingencies that shape research outcomes.

Regions abundant in scientific organizations provide PhD graduates with numerous employment alternatives, facilitating mobility and enabling better alignment between researchers’ skills and institutional opportunities. When graduates remain at their original universities in such competitive markets, it often reflects inertia or a lack of strategic career planning rather than deliberate preference, potentially limiting their professional growth. Conversely, in less developed areas where academic employers are scarce, inbreeding is less a product of choice and more a structural constraint. Hence, the study posits that the negative repercussions of academic inbreeding on productivity are most salient when researchers have ample employment options but do not capitalize on them.

The study also uncovered disciplinary differences in patterns of academic inbreeding and mobility. For example, mathematicians were comparatively more mobile and less inclined to remain within their alma mater, contrasting with physicists and chemists who displayed higher rates of academic inbreeding. These differences are likely reflective of varying research infrastructures, collaborative cultures, and publication norms inherent to different STEM fields. Fields with strong traditions of collaboration and well-established external networks may encourage mobility, while others with localized or institution-specific resources might foster retention within original universities.

Slepykh’s findings challenge the monolithic perception of academic inbreeding as uniformly detrimental. While it is not intrinsically problematic, its ramifications are heavily context-dependent. Particularly at universities with limited scientific capacity and resource constraints, inbreeding contributes to diminished research output and hinders innovation. To counteract these drawbacks, institutions and policymakers must actively cultivate environments that incentivize and facilitate academic mobility and external collaboration. Practical measures may include structured internships, academic exchange programs, and partnerships with leading research centers nationally and internationally.

Such initiatives are critical not only for enhancing scientific productivity but also for invigorating the academic ecosystem by broadening perspectives and fostering knowledge exchange. By promoting mobility, early-career researchers can access advanced equipment, cutting-edge methodologies, and interdisciplinary collaborations that are less attainable in isolated university settings. Beyond productivity metrics, the enrichment of scientific culture and the diversification of research networks impart lasting benefits to the trajectory of STEM research in Russia and beyond.

In sum, Victoria Slepykh’s study provides a vital, data-driven examination of academic inbreeding’s heterogeneous impact on early-career STEM researchers. It reveals that while remaining at one’s alma mater carries risks related to reduced output and diminished academic vitality under certain conditions, these effects are mediated by the institutional prestige, resource availability, disciplinary traditions, and regional labor markets. The research underscores the necessity for tailored strategies to promote mobility where beneficial, thereby empowering emerging scientists to realize their full scholarly potential and contribute robustly to global scientific advancement.

Subject of Research: Academic inbreeding and its effects on research productivity among early-career STEM scientists in Russia

Article Title: Academic inbreeding and productivity of STEM early career researchers in different environments

News Publication Date: 1-Jul-2025

Web References:
– https://www.sciencedirect.com/science/article/abs/pii/S0048733325000691#:~:text=However%2C%20academic%20inbreeding%20negatively%20correlates,of%20academic%20inbreeding%20is%20mitigated.
– http://dx.doi.org/10.1016/j.respol.2025.105240

References:
Victoria Slepykh, Academic inbreeding and productivity of STEM early career researchers in different environments, Research Policy, Volume 54, Issue 6, 2025

Image Credits: Victoria Slepykh, Academic inbreeding and productivity of STEM early career researchers in different environments, Research Policy, Volume 54, Issue 6, 2025

Keywords: Education, Science education, Students, Science careers