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Cedars-Sinai の調査で糖尿病リスクの増加が示される


Cedars-Sinai の Smidt Heart Institute の研究者は、COVID-19 の生存者は、心血管疾患に大きく寄与する新たな 2 型糖尿病を発症するリスクの増加に直面していることを発見しました。 この研究では 23,709 人の成人患者を評価し、COVID-19 曝露後の 2 型糖尿病の複合リスクは 2.1% であり、感染後に 70% が発生することがわかりました。 リスクは、予防接種を受けた患者 (1.0%) と比較して、予防接種を受けていない患者 (2.7%) で高かった。 調査結果は、感染前のCOVID-19ワクチン接種が糖尿病リスクに対する保護効果をもたらす可能性があることを示唆していますが、この仮説を確認するにはさらなる研究が必要です.

結果はまた、糖尿病のリスクが全体にわたって持続することを示唆しています[{” attribute=””>COVID-19 variants, and that upfront vaccination may help to reduce risk of post-infection diabetes.

Investigators in the Smidt Heart Institute at Cedars-Sinai have confirmed that people who have had COVID-19 have an increased risk for new-onset diabetes—the most significant contributor to cardiovascular disease.

“Our results verify that the risk of developing Type 2 diabetes after a COVID-19 infection was not just an early observation but, in fact, a real risk that has, unfortunately, persisted through the Omicron era,” said Alan Kwan, MD, first and corresponding author of the study and a cardiovascular physician in the Smidt Heart Institute at Cedars-Sinai.

The trend, Kwan says, is concerning because most people in the United States will eventually experience a COVID-19 infection. “This research study helps us understand—and better prepare for—the post-COVID-19 era of cardiovascular risk,” Kwan said.

The findings, published today in the journal JAMA Network Open, also suggest that the risk of Type 2 diabetes appears lower in individuals who were already vaccinated against COVID-19 by the time they were infected.

To determine the rising rates of diabetes, investigators evaluated medical records from 23,709 adult patients who had at least one documented COVID-19 infection and were treated within the Cedars-Sinai Health System in Los Angeles from 2020-2022. The average patient was 47 years old, and 54% of subjects were female.

Within the study time frame:

  • The combined risk of Type 2 diabetes after COVID-19 exposure—accounting for both vaccinated and unvaccinated patients—was 2.1%, with 70% occurring after COVID-19 infection versus 30% happening prior to COVID-19 exposure.
  • The risk of Type 2 diabetes after COVID-19 exposure for unvaccinated patients was 2.7%, with 74% occurring after COVID-19 infection versus 26% happening prior to COVID-19 exposure.
  • The risk of Type 2 diabetes after COVID-19 exposure for vaccinated patients was 1.0%, with 51% occurring after COVID-19 infection versus 49% happening prior to COVID-19 exposure.

“These results suggest that COVID-19 vaccination prior to infection may provide a protective effect against diabetes risk,” said Kwan. “Although further studies are needed to validate this hypothesis, we remain steadfast in our belief that COVID-19 vaccination remains an important tool in protecting against COVID-19 and the still-uncertain risks that people may experience during the post-infection period.”

Susan Cheng, MD, MPH, senior author of the study, professor of Cardiology, and director for Cardiovascular Population Sciences in the Smidt Heart Institute, says these findings broaden the medical field’s understanding of the effects of COVID-19 on the body, while simultaneously unearthing yet-to-be-answered questions.

“Although we don’t yet know for certain, the trends and patterns that we see in the data suggest that COVID-19 infection could be acting in certain settings like a disease accelerator, amplifying risk for a diagnosis that individuals might have otherwise received later in life,” said Cheng, the Erika J. Glazer Chair in Women’s Cardiovascular Health and Population Science. “So, it could be that instead of being diagnosed with diabetes by age 65, a person with preexisting risk for diabetes might—after a COVID-19 infection—be more likely to develop diabetes by age 45 or 55.”

Diabetes disrupts normal metabolism and metabolic processes, preventing the pancreas from producing enough insulin, a hormone that helps regulate blood levels of glucose and amino acids. Because diabetes can damage vital organs and blood vessels, people with diabetes are at higher risk for heart attack and stroke.

The disease affects an estimated 26 million people in the United States.

This research, Kwan says, is one piece of the puzzle that will help researchers understand how to prevent metabolic as well as cardiovascular disease risk in the future.

“As we learn how to live with COVID-19, we also have to be prepared to recognize and treat the various conditions linked to its aftereffects,” said Kwan. “Our ultimate goal—with every research study we conduct—is to find ways to keep people healthy and able to engage in their everyday activities and lives.”

Reference: “Association of COVID-19 Vaccination With Risk for Incident Diabetes After COVID-19 Infection” by Alan C. Kwan, MD, MSc; Joseph E. Ebinger, MD; Patrick Botting, MSPH; Jesse Navarrette, MPA; Brian Claggett, PhD and Susan Cheng, MD, MPH, MMSc, 14 February 2023, JAMA Network Open.
DOI: 10.1001/jamanetworkopen.2022.55965

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