Mannose-binding lectin and risk of infections in type 2 diabetes: A Danish cohort study

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  • Anne Gedebjerg
  • Reimar Wernich Thomsen
  • Alisa Devedzic Kjaergaard
  • Rudi Steffensen
  • Jens Steen Nielsen
  • Rungby, Jørgen
  • Søren Gunnar Friborg
  • Ivan Brandslund
  • Steffen Thiel
  • Henning Beck-Nielsen
  • Henrik Toft Sørensen
  • Troels Krarup Hansen
  • Mette Bjerre

Aims: In individuals at increased risk of infections, e.g., patients with type 2 diabetes, low MBL may have detrimental effects. We used the Mendelian randomization principle to examine whether genetically low MBL is a risk factor for developing infections in patients with type 2 diabetes. Methods: Serum MBL (n = 7305) and MBL genotype (n = 3043) were determined in a nationwide cohort of patients with new type 2 diabetes and up to 8 years follow-up for hospital-treated infections and community-based antimicrobial prescriptions. The associations were examined in spline and Cox regression analyses. Results: 1140 patients (16%) were hospitalized with an infection and 5077 patients (70%) redeemed an antimicrobial prescription. For low (≤100 μg/L) versus intermediate (101–1000 μg/L) serum MBL concentration, the adjusted hazard ratios (aHRs) were 1.13(95% confidence interval, 0.96–1.33) for any hospital-treated infections and 1.19(1.01–1.41) for bacterial infections. Low MBL expression genotype was not associated with risk of any hospital-treated infections except for diarrheal diseases (aHR 2.23[1.04–4.80]). Low MBL expression genotype, but not low serum MBL, was associated with increased risk for antimicrobial prescriptions (aHR 1.18[1.04–2.34] and antibacterial prescriptions 1.20[1.05–1.36]). Conclusions: Low MBL is a weak causal risk factor for developing infections in patients with type 2 diabetes.

OriginalsprogEngelsk
Artikelnummer107873
TidsskriftJournal of Diabetes and its Complications
Vol/bind35
Udgave nummer5
ISSN1056-8727
DOI
StatusUdgivet - 2021

Bibliografisk note

Funding Information:
This work was supported by The Danish Centre for Strategic Research in Type 2 Diabetes Project (DD2) which is supported by the Danish Agency for Science [grant nos. 09-067009 and 09-075724 ], the Danish Health and Medicines Authority , the Danish Diabetes Association , and an unrestricted donation from Novo Nordisk A/S. Project partners are listed on the www.DD2.nu website. The work of A.G. was supported by the Danish Diabetes Academy , which is funded by an unrestricted grant from the Novo Nordisk Foundation , and by grants from the Danish Heart Foundation [grant nos. 15-R99-A5866-22891 ] and Aarhus University . In addition, A.G. has received funding from the Aase and Ejnar Danielsen Foundation , Augustinus Foundation , A.P. Møller Foundation , Hertz Foundation , and Bønnelycke Foundation . The Department of Clinical Epidemiology, Aarhus University Hospital , participates in the International Diabetic Neuropathy Consortium research program, which is supported by a Novo Nordisk Foundation Challenge program grant [grant number NNF14SA000 6 ]. The funding sources had no role in study design, data collection, data analysis, data interpretation, or writing of the report.

Funding Information:
We are grateful to all participants in the DD2 study. We thank Hanne Petersen and Karen Mathiassen for their assistance with the large-volume measurements of serum MBL and hs-CRP. We gratefully acknowledge Sia Kromann Nicolaisen for assistance with data management. This work was supported by The Danish Centre for Strategic Research in Type 2 Diabetes Project (DD2) which is supported by the Danish Agency for Science [grant nos. 09-067009 and 09-075724], the Danish Health and Medicines Authority, the Danish Diabetes Association, and an unrestricted donation from Novo Nordisk A/S. Project partners are listed on the www.DD2.nu website. The work of A.G. was supported by the Danish Diabetes Academy, which is funded by an unrestricted grant from the Novo Nordisk Foundation, and by grants from the Danish Heart Foundation [grant nos. 15-R99-A5866-22891] and Aarhus University. In addition, A.G. has received funding from the Aase and Ejnar Danielsen Foundation, Augustinus Foundation, A.P. M?ller Foundation, Hertz Foundation, and B?nnelycke Foundation. The Department of Clinical Epidemiology, Aarhus University Hospital, participates in the International Diabetic Neuropathy Consortium research program, which is supported by a Novo Nordisk Foundation Challenge program grant [grant number NNF14SA000 6]. The funding sources had no role in study design, data collection, data analysis, data interpretation, or writing of the report. This study was presented as a poster presentation at the annual virtual meeting of the European Association for the Study of Diabetes (EASD), 21-25 September, 2020. All authors have seen and approved the content, have contributed significantly to the work, and fulfill the criteria given in the Authorship paragraph. The article is the authors' original work. The authors did not receive any writing assistance or copy editing outside the author group. The manuscript has not been submitted or accepted for publication elsewhere.

Publisher Copyright:
© 2021 Elsevier Inc.

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