Publications by authors named "Rebolledo-Solleiro D"

This report details the case of a preadolescent female patient diagnosed with Kabuki syndrome, a rare genetic disorder characterised by distinctive facial features, growth delay and cognitive impairment. The patient's medical history includes perinatal complications, alongside challenges in developmental milestones, feeding and psychomotor skills since infancy, prompting further investigation. Genetic testing confirmed the diagnosis, revealing a full deletion of The patient underwent a multidisciplinary approach, addressing various aspects of her condition, which resulted in significant improvements in several areas.

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The aim of this study was to evaluate female rat sexual motivation in a model of diabetes mellitus type 1. Severe hyperglycemia was induced in ovariectomized Wistar rats by injecting streptozotocin [STZ, 100 mg/kg, i.p.

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Bisphenol A (BPA), a compound used in the manufacturing of plastics and epoxy resins, is an endocrine disruptor with significant adverse impact on the human's health. Here, we review the animal models and clinical studies as well as the molecular and cellular mechanisms that show that BPA alters the normal function of the reproductive system, metabolism, brain function and behavior and contributes to the development of certain neurodevelopmental disorders including autism spectrum and attention-deficit and hyperactivity disorders. BPA also causes aberrant cognitive function, behavioral disturbances, and neurodegenerative diseases, including Parkinson's disease, amyotrophic lateral sclerosis (ALS), and multiple sclerosis.

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Nowadays, it is well accepted that obesity and metabolic syndrome are diseases that constitute a global public health issue. In consequence, the interest in the study of the effects these pathologies produce in the central nervous system has greatly increased in the last decades. One of the most overlooked topics in the literature is the impact they exert in sensory systems, among which is olfaction.

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Introduction: Diabetes mellitus has been associated with sexual dysfunction; however, in women this relationship is controversial. A study using a model of type 2 diabetes mellitus (DM2) failed to find a reduced receptivity in the non-paced mating (NPM), but the appetitive aspects of female sexual behavior have not been evaluated, for example, in the paced mating (PM) paradigm.

Aim: To evaluate all components of female sexual behavior (in NPM and PM) in a model of DM2 using ovariectomized (OVX) (treated with steroids) or intact female rats (non-OVX) in natural proestrus.

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Depression is the most common psychiatric disorder in diabetic patients, showing higher rates in women than in men. This comorbidity has been studied in rodents using the streptozotocin (STZ)-induced diabetes (DM) model, consistently reporting a depressive-like profile in males. Few articles have examined these disturbances in females (ovariectomized or combined with male rats) yielding controversial results.

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Background: Clinical studies have shown altered sexual function in people with diabetes; basic science studies, using the streptozotocin (STZ)-induced animal model of type 1 diabetes mellitus (DM1), have consistently reported decreased sexual behavior in hyperglycemic female animals, but features of sexual motivation and aggressive behavior have not been explored in these animals.

Aim: To study several parameters that denote sexual motivation in STZ-treated female rats and to compare behavioral features of sexual behavior and aggression in non-paced mating (NPM) and paced mating (PM) conditions.

Methods: DM1 was induced by injecting STZ (diluted in citrate buffer) at a dose of 50 mg/kg intraperitoneally over 2 consecutive days into ovariectomized Wistar rats.

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Metabolic syndrome (MS) is a cluster of signs that increases the risk to develop diabetes mellitus type 2 and cardiovascular disease. In the last years, a growing interest to study the relationship between MS and psychiatric disorders, such as depression and anxiety, has emerged obtaining conflicting results. Diet-induced MS rat models have only examined the effects of high-fat or mixed cafeteria diets to a limited extent.

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Epidemiological surveys have indicated that anxiety disorders are more frequent in diabetic patients than in the general population. Similar results have been shown in animal studies using the streptozotocin (STZ)-induced diabetes model. The mechanisms underlying this relationship are not clearly understood, but it has been suggested that alterations in the dopaminergic neurotransmission, which plays an important role in the amygdaloid modulation of fear and anxiety, may be involved.

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Conflicting results have been obtained by several groups when studying the effects of streptozotocin (STZ)-treated rats in the elevated plus-maze (EPM). Since thirst is a prominent feature in STZ-induced diabetic-like condition, we studied whether the walls of the closed arms of the EPM, by limiting the search for water in the environment, may contribute to the observed differential behavioral outcomes. The aim of this study was to ascertain whether visual barriers within the EPM have an influence on the behavior of STZ-treated rats in this test of anxiety.

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The activity of the hypothalamus-pituitary-thyroid (HPT) axis is essential for energy homeostasis and is differentially modulated by physical and by psychological stress. Contradictory effects of stressful behavioral paradigms on TSH or thyroid hormone release are due to type, length and controllability of the stressor. We hypothesized that an additional determinant of the activity of the HPT axis is the energy demand due to physical activity.

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Article Synopsis
  • * In experiments with male Wistar rats subjected to different stress tests, TRH and proCRH mRNA levels were analyzed post-stress, showing that restraint increased proCRH mRNA but not proTRH, while corticosterone levels heightened across all stress paradigms.
  • * The study revealed that increased TRH expression in the amygdala correlates with reduced anxiety, particularly during dark phases, indicating that TRH may play a role in fear processing and anxiety regulation under varying stress conditions and circadian rhythms.
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