The relationship between thyroid dysfunction and metabolic syndrome (MS) is complex. We aimed to explore the impact of gender and age on their association in a large Chinese cohort.This cross-sectional study enrolled 13,855 participants (8532 male, 5323 female), who self-reported as healthy without any known previous diseases. Clinical data including anthropometric measurements, thyroid function, and serum metabolic parameters were collected. The associations between thyroid function and MS of both genders were analyzed separately after dividing thyroid-stimulating hormone (TSH), free triiodothyronine (FT3), and age into subgroups. MS risks were calculated by binary logistic regression models.Young males had significantly higher MS prevalence than females, yet after menopause, females had higher prevalence than males. Females had higher incidence of thyroid dysfunction than males. By using TSH quartiles as the categorical variables and the lowest quartile as reference, significantly increased MS risk was demonstrated in quartile 4 for males, yet quartiles 3 and 4 for females. By using FT3 quartiles as the categorical variables, significantly increased MS risk was demonstrated in quartile 2 to 4 for females only. By using age subgroups as the categorical variables, significantly increased MS risk was shown in both genders, with females (4.408–58.455) higher than males (2.588–4.943).Gender and age had substantial influence on thyroid function and MS. Females with high TSH and high FT3 had higher MS risks than males. Aging was a risk for MS, especially for females. Urgent need is necessary to initiate interventional programs.

A unique structure of graphene-wrapped mesoporous single crystals (MSCs) is successfully applied on low-cost MnCO3 for lithium-ion batteries (LIBs). In a departure from previous high-temperature (>500°C) synthesis approaches for MSCs, we develop a simple, low-temperature (70°C) and template-free method, referrers to as dynamic floating electrodeposition (DFE), to fabricate graphene-wrapped MnCO3 MSCs. In DFE method, we achieve the reduction of GOs to RGOs, the deposition of MnCO3 MSCs on graphene, and graphene-wrapped morphology, all three goals in one electrochemical process. The resulting submicron, graphene-wrapped MnCO3 MSCs reaches a high reversible capacity of 900 mAh g -1 after the initial cycle and delivered over 1,000 mAh g -1 after 130 cycles. The reversible capacity is also kept at this high level for more than 400 cycles and maintained 422 mAh g -1 at a high rate of 5,000 mA g -1 . It is the first time that this high performance is achieved on MnCO3 for lithium-ion storage. Furthermore, this superior electrochemical performance is found to be highly related to the designed structure, graphene-wrapped MSCs, of MnCO3.