People with type 2 diabetes more likely to suffer from breathlessness, restrictive lung disease

The research team, headed by Dr. Stefan Kopf, comprised 110 patients with long-term type 2 diabetes, 29 patients with newly diagnosed type 2 diabetes, 68 patients with pre-diabetes and 48 non-diabetic patients (controls). The study participants were examined for metabolic control, diabetes-related complications, breathlessness, and lung function. It was found that people with type 2 diabetes are significantly more likely to suffer from breathlessness and RLD than the control group. RLD was found in 27% of patients with long-term type 2 diabetes, in 20% of patients with newly diagnosed diabetes, and in 9% of patients with pre-diabetes. Patients with pronounced symptoms and RLD also showed CT-morphologically a fibrosating interstitial lung disease. There were also differences in the morphological analysis of the lung tissue of subjects with and without diabetes. Patients with diabetes had increased pulmonary fibrosis.

In addition, the study showed that RLD is associated with albuminuria. In the disease, urinary albumin levels are elevated. This may be an indication that lung disease and kidney disease may be associated with diabetic kidney disease (nephropathy).

“Increased breathlessness, RLD, and interstitial lung anomalies can be associated with type 2 diabetes,” said first author Stefan Kopf, MD, of the Department of Endocrinology, Diabetology and Clinical Chemistry at University Hospital Heidelberg, summarizing the study results. “In this study, the prevalence of RLD was 20 to 27 percent in patients with diabetes. Moreover, the radiological and histological analyses suggest an association with fibrosing interstitial lung anomalies,” added Professor Hans-Ulrich Kauczor, MD, Medical Director of Diagnostic and Interventional Radiology at University Hospital Heidelberg.

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