Supplementary Material for: Sex-specific appetite regulation of lipocalin-2 in high fat diet-induced obese mice Article Swipe

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Longkun Miao , Chong Tian , Qian Xiong , Jing Zhao , Yunfei Feng , Hongjie Yu , Hongyan Du ·

YOU? · · 2024 · Open Access · · DOI: https://doi.org/10.6084/m9.figshare.24966219

Lipocalin 2 (Lcn2) is a key factor in appetite suppression. However, the effect of Lcn2 on appetite in terms of sex differences has not been thoroughly studied. Methods: Young (3-month-old) whole-body Lcn2 knockout (Lcn2-/-) mice, which were fed normal diet (ND) or high-fat diet (HFD) for eight-weeks to investigate obesity, food intake, serum metabolism, hepatic lipid metabolism, and regulation of gastrointestinal hormones. Results: Lcn2 deficiency significantly increased the body weight and food intake of male mice when fed ND instead of HFD, and females when fed HFD but not ND. Compared to WT male mice, adiponectin level and phosphorylated form of AMPK in hypothalamus were both increased in ND-fed Lcn2-/- male mice, but decreased in HFD-fed Lcn2-/- male mice. However, in female mice, adiponectin and its energy metabolism pathway were not altered. Instead, estradiol was found to be substantially higher in ND-fed Lcn2-/- female mice and substantially lower in HFD-fed Lcn2-/- female mice compared with WT female mice. Estradiol alteration also caused similar changes in ERα in the hypothalamus, leading to changes in PI3K/AKT energy metabolism pathway. It suggested that the increased appetite caused by Lcn2 deficiency in male mice may be due to increased adiponectin expression and promotion of AMPK phosphorylation, while in female may be related to the decrease of circulating E2 and the inhibition of hypothalamic ERα/PI3K/AKT energy metabolism pathway. Conclusion: Lcn2 plays in a highly sex-specific manner in the regulation of appetite in young mice.

Related Topics

Internal Medicine

Endocrinology

Medicine

Concepts

Lipocalin Appetite Internal medicine Endocrinology Obesity Medicine

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Language: en
Landing Page: https://doi.org/10.6084/m9.figshare.24966219
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OpenAlex ID: https://openalex.org/W4394421815

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DOI: https://doi.org/10.6084/m9.figshare.24966219

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Title: Supplementary Material for: Sex-specific appetite regulation of lipocalin-2 in high fat diet-induced obese mice

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Type: dataset

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Language: en

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Publication year: 2024

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Publication date: 2024-01-01

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Authors: Longkun Miao, Chong Tian, Qian Xiong, Jing Zhao, Yunfei Feng, Hongjie Yu, Hongyan Du

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Landing page: https://doi.org/10.6084/m9.figshare.24966219

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OA status: gold

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OA URL: https://doi.org/10.6084/m9.figshare.24966219

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Concepts: Lipocalin, Appetite, Internal medicine, Endocrinology, Obesity, Medicine

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Cited by: 0

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