PMID- 32898507 OWN - NLM STAT- MEDLINE DCOM- 20211025 LR - 20211025 IS - 1872-6240 (Electronic) IS - 0006-8993 (Linking) VI - 1748 DP - 2020 Dec 1 TI - Tibolone regulates systemic metabolism and the expression of sex hormone receptors in the central nervous system of ovariectomised rats fed with high-fat and high-fructose diet. PG - 147096 LID - S0006-8993(20)30454-6 [pii] LID - 10.1016/j.brainres.2020.147096 [doi] AB - Estrogen replacement therapy decreases some risk factors of the metabolic syndrome but increases the risk of some types of cancer. Tibolone (TIB) has shown similar neuroprotective effects as estrogens. This study aimed to evaluate the effects of TIB on metabolic parameters and the expression of sex hormone receptors in the CNS in ovariectomised rats fed with a hypercaloric diet. Sprague-Dawley female rats were ovariectomised and fed for 30 days with a standard diet (SD) or high-fat high-fructose diet (HFFD) and treated with TIB (1 mg/kg) or vehicle. At the end of the treatments, HFFD increased body weight, glucose tolerance, triglycerides and cholesterol levels, while TIB treatment decreased these parameters. Subsequently, the hippocampus, the hypothalamus and the frontal cortex were dissected. RT-PCR was performed for progesterone receptor (PR), androgen receptor (AR), estrogen receptors alpha and beta (ERalpha, ERbeta), insulin receptor (IR) and insulin-like growth factor 1 (IGF-1). HFFD altered the expression of sex hormone receptors in specific brain structures involved in the regulation of homeostasis and cognition, which highlights the importance of a healthy diet. In turn, TIB modulated the expression of these receptors, particularly in the hypothalamus. CI - Copyright (c) 2020 Elsevier B.V. All rights reserved. FAU - Coyoy-Salgado, Angelica AU - Coyoy-Salgado A AD - Catedras CONACyT-Unidad de Investigacion Medica en Enfermedades Neurologicas, Hospital de Especialidades Dr. Bernardo Sepulveda, Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico. FAU - Segura-Uribe, Julia J AU - Segura-Uribe JJ AD - Unidad de Investigacion Medica en Enfermedades Neurologicas, Hospital de Especialidades Dr. Bernardo Sepulveda, Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social and Departamento de Investigacion, Hospital Infantil de Mexico Federico Gomez, Secretaria de Salud, Mexico City, Mexico. FAU - Manuel Gallardo, Juan AU - Manuel Gallardo J AD - Unidad de Investigacion Medica en Enfermedades Nefrologicas, Hospital de Especialidades Dr. Bernardo Sepulveda, Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico. FAU - Estrada-Cruz, Norma A AU - Estrada-Cruz NA AD - Unidad de Investigacion Medica en Farmacologia, Hospital de Especialidades Dr. Bernardo Sepulveda, Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico. FAU - Camacho-Arroyo, Ignacio AU - Camacho-Arroyo I AD - Unidad de Investigacion en Reproduccion Humana, Instituto Nacional de Perinatologia-Facultad de Quimica, Universidad Nacional Autonoma de Mexico, Mexico City, Mexico. FAU - Guerra-Araiza, Christian AU - Guerra-Araiza C AD - Unidad de Investigacion Medica en Farmacologia, Hospital de Especialidades Dr. Bernardo Sepulveda, Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico. Electronic address: christianguerra2001@gmail.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200906 PL - Netherlands TA - Brain Res JT - Brain research JID - 0045503 RN - 0 (Dietary Carbohydrates) RN - 0 (Estrogen Receptor Modulators) RN - 0 (Norpregnenes) RN - 0 (Receptors, Androgen) RN - 0 (Receptors, Estrogen) RN - 0 (Receptors, Progesterone) RN - 30237-26-4 (Fructose) RN - EC 2.7.10.1 (Receptor, IGF Type 1) RN - EC 2.7.10.1 (Receptor, Insulin) RN - FF9X0205V2 (tibolone) SB - IM MH - Animals MH - *Diet, High-Fat MH - *Dietary Carbohydrates MH - Estrogen Receptor Modulators/*pharmacology MH - Female MH - Frontal Lobe/drug effects/*metabolism MH - Fructose MH - Hippocampus/drug effects/*metabolism MH - Hypothalamus/drug effects/*metabolism MH - Norpregnenes/*pharmacology MH - Ovariectomy MH - Rats MH - Rats, Sprague-Dawley MH - Receptor, IGF Type 1/metabolism MH - Receptor, Insulin/metabolism MH - Receptors, Androgen/metabolism MH - Receptors, Estrogen/metabolism MH - Receptors, Progesterone/metabolism OTO - NOTNLM OT - Hormone receptors OT - Hormone replacement therapy OT - Menopause OT - Metabolic syndrome OT - Tibolone COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2020/09/09 06:00 MHDA- 2021/10/26 06:00 CRDT- 2020/09/08 20:07 PHST- 2020/04/20 00:00 [received] PHST- 2020/08/26 00:00 [revised] PHST- 2020/08/27 00:00 [accepted] PHST- 2020/09/09 06:00 [pubmed] PHST- 2021/10/26 06:00 [medline] PHST- 2020/09/08 20:07 [entrez] AID - S0006-8993(20)30454-6 [pii] AID - 10.1016/j.brainres.2020.147096 [doi] PST - ppublish SO - Brain Res. 2020 Dec 1;1748:147096. doi: 10.1016/j.brainres.2020.147096. Epub 2020 Sep 6.