Evidence map›Paper›PMID 42698181›Full record

ArticleEndocrinology, diabetes & metabolism2026

The Shared IL-12/IL-35 p35 Subunit Is Associated With Heightened Atherogenic Risk in African Patients With Type 2 Diabetes.

Tawanda M Nyambuya, Edwig Shingenge, Fransina Ndevahoma, Bongani B Nkambule

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Article in Endocrinology, diabetes & metabolism, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Tawanda M NyambuyaDepartment of Molecular Medicine and Haematology, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.ORCID https://orcid.org/0000-0002-3288-9524
Edwig ShingengeDepartment of Health Sciences, Faculty of Health, Applied Sciences and Natural Resources, Namibia University of Science and Technology, Windhoek, Namibia.ORCID https://orcid.org/0009-0002-6442-1296
Fransina NdevahomaDepartment of Health Sciences, Faculty of Health, Applied Sciences and Natural Resources, Namibia University of Science and Technology, Windhoek, Namibia.
Bongani B NkambuleSchool of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.

Funding

Namibia University of Science and Technology
6 · The paper itself

Abstract

introductionInterleukin (IL)-12 and IL-35 are heterodimeric cytokines that share the p35 subunit and have opposing inflammatory roles. Dysregulated IL-12/IL-35 p35 may reflect an imbalance between pro- and anti-inflammatory pathways linking metabolic dysfunction to cardiovascular risk in type 2 diabetes (T2D). However, the clinical significance of circulating IL-12/IL-35 p35 levels remains unclear. This study investigated the association between IL-12/IL-35 p35 levels and metabolic and atherogenic risk markers in T2D.

methodsThis cross-sectional study stratified 80 patients with T2D into Low and High IL-12/IL-35 p35 groups (n = 40/group) using a median split of plasma IL-12/IL-35 p35 (18.48 pg/mL). Laboratory parameters were measured using standard methods, and IL-12/IL-35 p35 concentrations were quantified by Enzyme Linked Immunosorbent Assay.

resultsPatients with High IL-12/IL-35 p35 had significantly elevated fasting glucose (p = 0.0318), triglycerides (p < 0.0001), triglyceride/HDL ratio (p < 0.0001), Triglyceride-Glucose (TyG) (p < 0.0001), and atherogenic index of plasma (AIP) (p < 0.0001). Circulating IL-12/IL-35 p35 levels positively correlated with triglycerides, AIP, Trig/HDL ratio and TyG index (all p < 0.0001), and negatively correlated with HDL (p = 0.0466). In the multiple linear regression analysis, IL-12/IL-35 p35 levels and TyG index (all p < 0.05) independently predicted atherogenicity after adjusting for glycaemic control. Receiver operating characteristic analysis demonstrated that IL-12/IL-35 p35 discriminated participants with high-risk AIP (AUC = 0.79, 95% CI: 0.68-0.89, p < 0.0001) and elevated TyG index (AUC = 0.78, 95% CI: 0.63-0.93, p = 0.0147).

conclusionElevated circulating IL-12/IL-35 p35 in T2D is associated with suboptimal glucose control and pronounced atherogenicity, suggesting altered activity within this immunoregulatory axis. These findings highlight the shared p35 subunit as a marker of immune imbalance and support its potential utility in identifying heightened atherogenic risk in T2D beyond the traditional markers. Future studies should directly quantify intact IL-12 and IL-35 to elucidate their individual contributions to the alteration of this immunoregulatory axis.

Indexed as

AtherosclerosisDiabetes Mellitus, Type 2Interleukin-12Interleukin-12 Subunit p35InterleukinsAdultAgedBiomarkersBlood GlucoseCross-Sectional StudiesFemaleHumansMaleMiddle AgedRisk FactorsBiomarkersBlood GlucoseInterleukin-12Interleukin-12 Subunit p35interleukin-35, humanInterleukinsatherogenicityIL‐12/IL‐35 axisinflammationp35 subunitT2D

Identifiers

PMID42698181
PMCPMC13545408

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