(Press-News.org) Excess weight in mid-life is a known risk factor for kidney cancer, but new research indicates that weight patterns throughout life may also affect an individual’s likelihood of developing this malignancy. The findings are published by Wiley online in CANCER, a peer-reviewed journal of the American Cancer Society.
To assess weight patterns and their associations with kidney cancer and its different subtypes, investigators analyzed information on 204,364 individuals from the NIH-AARP Diet and Health Study, including body mass index (BMI) data when participants entered the study (an average age of 61.6 years), and prior BMI recordings at 18, 35, and 50 years of age. The team noted that there were 1,425 cases of kidney cancer, or renal cell carcinoma (RCC), among the study’s participants, with 583 having aggressive RCC and 339 having fatal RCC. The researchers also recorded the different subtypes of RCC, including clear cell RCC (541 patients), papillary RCC (146 patients), and chromophobe RCC (64 patients).
Higher BMI at any of the ages assessed was linked with higher risks of overall RCC and all subtypes (except chromophobe RCC), with a 10-40% higher risk for each 5-unit increase in BMI. Similar increased risks were linked to weight gain during adulthood that resulted in overweight or obesity, compared with maintaining normal BMI.
Also, long-term excess weight was associated with higher risks of overall RCC, aggressive RCC, fatal RCC, and clear cell RCC, but not papillary RCC and chromophobe RCC. Weight loss in which BMI was reduced by at least 10%, particularly later in life, was associated with a lower risk of RCC. Specifically, weight loss from age 18–35 years and after age 50 years was associated with 21% and 28% reductions in RCC incidence, respectively.
“These findings emphasize that maintaining a healthy weight across one’s lifetime is important for reducing RCC risk. More importantly, weight loss, even later in life, may offer protective benefits,” said lead author Zhengyi Deng, PhD, of Stanford University School of Medicine. “We should support initiatives that promote healthy weight maintenance and weight loss strategies. Some of these include lifestyle interventions, weight-loss programs, and emerging medical treatments for obesity; however, individuals should consult with their healthcare providers prior to initiation of any plan.”
Additional information
NOTE: The information contained in this release is protected by copyright. Please include journal attribution in all coverage. A free abstract of this article will be available via the CANCER Newsroom upon online publication. For more information or to obtain a PDF of any study, please contact: Sara Henning-Stout, newsroom@wiley.com
Full Citation:
“Lifetime body weight patterns, weight loss, and renal cell carcinoma subtypes.” Zhengyi Deng, Chiyuan Amy Zhang, Justin X. Moore, Saira Khan, Rebecca E. Graff, Ken Batai, Melissa L. Bondy, Benjamin I. Chung, and Marvin E. Langston. CANCER; Published Online: March 24, 2025 (DOI: 10.1002/cncr.35763).
URL Upon Publication: http://doi.wiley.com/10.1002/cncr.35763
Author Contact: Ahmad Zaki Sadeqi, MSc, MA; Communications Manager, Department of Urology, Stanford University School of Medicine; azsadeqi@stanford.edu
About the Journal
CANCER is a peer-reviewed publication of the American Cancer Society integrating scientific information from worldwide sources for all oncologic specialties. The objective of CANCER is to provide an interdisciplinary forum for the exchange of information among oncologic disciplines concerned with the etiology, course, and treatment of human cancer. CANCER is published on behalf of the American Cancer Society by Wiley and can be accessed online. Follow CANCER on X @JournalCancer and Instagram @ACSJournalCancer, and stay up to date with the American Cancer Society Journals on LinkedIn.
About Wiley
Wiley is one of the world’s largest publishers and a trusted leader in research and learning. Our industry-leading content, services, platforms, and knowledge networks are tailored to meet the evolving needs of our customers and partners, including researchers, students, instructors, professionals, institutions, and corporations. We empower knowledge-seekers to transform today’s biggest obstacles into tomorrow’s brightest opportunities. For more than two centuries, Wiley has been delivering on its timeless mission to unlock human potential. Visit us at Wiley.com. Follow us on Facebook, X, LinkedIn and Instagram.
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Do lifetime body weight patterns affect kidney cancer risk?
Study links higher body mass index at various ages across adulthood with greater risks of developing different types of kidney cancer.
2025-03-24
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[Press-News.org] Do lifetime body weight patterns affect kidney cancer risk?Study links higher body mass index at various ages across adulthood with greater risks of developing different types of kidney cancer.