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ABSTRACT: Background
In obesity, the adipose tissue becomes a very significant endocrine organ producing different factors called adipokines, such as leptin, adiponectin and kisspeptin; however, no data are available about their actions on uterine contraction in obese pregnant rats. Our aim was to study the impact of obesity on pregnant uterine contraction in a rat model.Methods
Obesity was induced by the consumption of a high fat high sucrose diet (HFHSD) for 9 weeks, including pregnancy. Glucose tolerance, sex hormone, cytokine and adipokine levels were measured. Uterine contractions and cervical resistance, as well as their responses to adipokines, were tested along with the expressions of their uterine receptors.Results
HFHSD increased body weight, and altered glucose tolerance and fat composition. The uterine leptin and kisspeptin pathway affect increased. The levels of proinflammatory cytokines were reduced, while the plasma level of progesterone was increased, resulting in weaker uterine contractions, and improving the uterine relaxing effects of adipokines. HFHSD reduced cervical resistance, but the core effect of adipokines is difficult to determine.Conclusions
Obesity in pregnant rats reduces uterine contractility and cytokine-induced inflammatory processes, and therefore obese pregnant rat methods are partially applicable for modelling human processes.
SUBMITTER: Gaspar R
PROVIDER: S-EPMC9224847 | biostudies-literature | 2022 May
REPOSITORIES: biostudies-literature
Gáspár Róbert R Hajagos-Tóth Judit J Schaffer Annamária A Kothencz Anna A Siska-Szabó Lilla L Ducza Eszter E Csányi Adrienn A Tábi Tamás T Bagaméry Fruzsina F Szökő Éva É Kovács Orsolya O Barna Tamara T Samavati Reza R Mirdamadi Mohsen M Sztojkov-Ivanov Anita A Szűcs Kálmán Ferenc KF Vari Sandor G SG
Life (Basel, Switzerland) 20220526 6
<h4>Background</h4>In obesity, the adipose tissue becomes a very significant endocrine organ producing different factors called adipokines, such as leptin, adiponectin and kisspeptin; however, no data are available about their actions on uterine contraction in obese pregnant rats. Our aim was to study the impact of obesity on pregnant uterine contraction in a rat model.<h4>Methods</h4>Obesity was induced by the consumption of a high fat high sucrose diet (HFHSD) for 9 weeks, including pregnancy. ...[more]