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Objective To explore the relationship between serum ferritin levels and body fat distribution in patients with type 2 diabetes mellitus (T2DM). Methods A retrospective analysis was conducted on 151 patients with T2DM who were hospitalized in the Department of Endocrinology of the First Hospital of Lanzhou University from June to November 2020, and all the patients were divided into high serum ferritin (n=50) and normal serum ferritin (n=101) groups according to their serum ferritin levels. The visceral fat area (VFA), subcutaneous fat area (SFA), liver fat, height, weight and waist circumference (WC) were measured, as well as blood glucose, lipid indexes, body mass index (BMI) and visceral adiposity index (VAI) were also calculated. t-test or nonparametric test was used to compare the differences between the two groups, and the relationship between serum ferritin levels and body fat distribution was analyzed by Pearson or Spearman correlation analysis, multiple linear regression and logistic regression. Results The VAI and WC were significantly higher in high serum ferritin group [3.13(2.16,4.58) and (96.66±7.78) cm] than in normal serum ferritin group [2.66(1.66,3.81) and (91.96±9.75) cm, P<0.05]. The prevalence of central obesity and dyslipidemia was higher in high serum ferritin group (88.0% and 90.0%) than in normal serum ferritin group (68.3% and 75.2%); and the composition ratios of poor glycemic control and insulin resistance (96.0% and 62.0%) were also higher than in normal serum ferritin group (78.2% and 40.6%) (P<0.05), there were no statistically significant differences in BMI, VFA, and SFA levels, as well as antidiabetic drug use and chronic complications of diabetes mellitus between the two groups (P>0.05). Serum ferritin levels in T2DM patients were positively correlated with VAI, WC, triglyceride (TG), fasting blood glucose (FPG), HbA1c, dyslipidemia and serum creatinine (r=0.171, 0.207, 0.187, 0.243, 0.270, 0.162, 0.162; P<0.05), and negatively correlated with age, sex and diabetes course (r=-0.191, -0.434, -0.352; P<0.05). Multivariate linear regression analysis showed that in male T2DM patients, duration of diabetes and FPG were risk factors for increased levels of serum ferritin. However, WC and VAI did not significantly affect serum ferritin levels. In female patients with T2DM, the course of diabetes, TG and VAI were the factors influencing serum ferritin (P<0.05). Conclusion Dyslipidemia and visceral fat accumulation are risk factors for elevated serum ferritin levels in female T2DM patients.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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