Cited by 18Hormonal and reproductive studiesRegulation of Appetite and ObesityAdipokines, Inflammation, and Metabolic Diseases

Male hypogonadism causes obesity associated with impairment of hepatic gluconeogenesis in mice

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Aoki, Akira, Fujitani, Kohei, Takagi, Kohei, Kimura, Tomoki, Nagase, Hisamitsu, Nakanishi, Tsuyoshi·2016·Biological & Pharmaceutical Bulletin

Abstract

The steroid hormones synthesized by the male gonads play diverse roles in biological processes. Androgens, the primary hormones produced by the male gonads, are key regulators of fat homeostasis, hence androgen-deprivation therapies often induce obesity. However, the molecular mechanism by which male gonadal dysfunction leads to obesity remains unclear, because results from animal studies regarding fat accumulation in the context of gonadal defects do not reflect clinical findings. Here, we investigated the mechanism underlying the development of obesity in animals with male gonadal dysfunction by analyzing the long-term physiological changes in adult male mice with surgical castration. Nine weeks after surgery, white adipose tissue (WAT) mass was higher in the castrated (Cas) mice than in sham-operated (Sham) mice. In addition, castration induced hyperlipidemia and hyperglycemia. However, genes involved in lipid metabolism, including hormone-sensitive lipase, were unchanged in the adipose tissue of the Cas mice, despite the increase in WAT. In contrast, a hepatic gluconeogenesis gene, glucose-6-phosphatase, was significantly upregulated in the Cas mice than in Sham mice. Our findings suggest that long-term hypogonadism in mice mimics the effects in humans, and a potential molecular basis for the induction of obesity in this model is impairment of hepatic gluconeogenesis.

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Crossref · 10.1248/bpb.b15-00942

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  • Castrated male rodents have been shown to exhibit improved glucose and insulin tolerance with reduced adiposity in some studies, and in others display worsened adiposity, WAT inflammation, and glucose tolerance.

    “By contrast, castrated male rodents have been shown to exhibit improved glucose and insulin tolerance with reduced adiposity in some studies (85, 86), and in others display worsened adiposity, WAT inflammation, and glucose tolerance (87, 88).”

    From Metabolic impact of endogenously produced estrogens by adipose tissue in females and males across the lifespan (2025) · cites this paper as [87]

    The Body Weight, Food Intake, and Tissue Weight section reports increased white adipose tissue relative to body weight nine weeks after castration, and the Serum Biochemical Markers section reports higher fasting glucose. The paper does not report WAT inflammation or a glucose-tolerance test, so it does not establish those parts of the worsened-outcomes claim. The improved-outcomes clause is attached to other citations, not this source. (LLM, conf=0.87)

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Research works printed but not linked: 4

  1. Hakimian P, Blute M Jr, Kashanian J, Chan S, Silver D, Shabsigh R. Metabolic and cardiovascular effects of androgen deprivation therapy. BJU Int., 102, 1509-1514 (2008). · DOI
  2. Smith MR, Finkelstein JS, McGovern FJ, Zietman AL, Fallon MA, Schoenfeld DA, Kantoff PW. Changes in body composition during androgen deprivation therapy for prostate cancer. J. Clin. Endocri- nol. Metab., 87, 599-603 (2002). · DOI · Paper page
  3. Sato T, Cespedes RF, Goyenaga PH, Tauchi H. Age changes in the livers of Costa Ricans. Mech. Ageing Dev., 11, 171-178 (1979). · DOI
  4. Trinh KY, O'Doherty RM, Anderson P, Lange AJ, Newgard CB. Perturbation of fuel homeostasis caused by overexpression of the glucose-6-phosphatase catalytic subunit in liver of normal rats. J. Biol. Chem., 273, 31615-31620 (1998). · DOI

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Authors
Aoki, A., Fujitani, K., Takagi, K., Kimura, T., Nagase, H., & Nakanishi, T.
Affiliations
  • Gifu Pharmaceutical University (JP)
  • Setsunan University (JP)
Venue
Biological & Pharmaceutical Bulletin
Published
2016
Volume
39
Issue
4
Pages
587-592
ISSN
  • 0918-6158 (ISSN-L)
  • 1347-5215
OpenAlex
W2333975790
Cited by
18
References
35
Citations by year
2026: 1 · 2025: 1 · 2024: 1 · 2023: 2 · 2022: 2 · 2021: 1 · 2020: 5 · 2018: 1 · 2017: 4
FWCI
1.67
Type
journal article
Language
en
Open access
Locations
  • Biological and Pharmaceutical Bulletin (publishedVersion)
  • PubMed (publishedVersion)
Funders
Japan Society for the Promotion of Science (25281026, 15K14989, 25293031)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal and reproductive studies
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
Keywords
male hypogonadism, obesity, hepatic gluconeogenesis, castration, androgen deprivation therapy, glucose-6-phosphatase, white adipose tissue, hyperlipidemia, hyperglycemia, hormone-sensitive lipase, gonadal dysfunction
MeSH terms
Animals, Blood Glucose, Body Weight, Eating, Fatty Acids, Nonesterified, Gluconeogenesis, Hyperglycemia, Hyperlipidemias, Hypogonadism, Liver, Male, Mice, Inbred C57BL, Obesity, Orchiectomy, Organ Size, Triglycerides, Adipose Tissue, White

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