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Neuroendocrinology

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https://www.readbyqxmd.com/read/29774962/maternal-regulation-of-the-infant-s-hpa-axis-stress-response-seymour-gig-levine-s-legacy-to-neuroendocrinology
#1
REVIEW
Deborah Suchecki
Thirty years ago, Seymour 'Gig' Levine published a serendipitous, yet, seminal finding on the regulatory role of maternal presence on the corticosterone stress response of neonatal rats, during the developmental period know as stress hyporesponsive period. At the same time, his group of students also studied the stress response of infant monkeys to maternal separation, as a means to understand the stressful nature of disruptions of attachment to the primary caregiver. Gig and his group of students and collaborators, mainly in the USA and the Netherlands, investigated how initial social relationships buffer the stress response of non-human primate and rodent infants...
May 18, 2018: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29768629/controversial-issues-in-the-management-of-hyperprolactinemia-and-prolactinomas-an-overview-by-the-neuroendocrinology-department-of-the-brazilian-society-of-endocrinology-and-metabolism
#2
Lucio Vilar, Julio Abucham, José Luciano Albuquerque, Luiz Antônio Araujo, Monalisa F Azevedo, Cesar Luiz Boguszewski, Luiz Augusto Casulari, Malebranche B C Cunha Neto, Mauro A Czepielewski, Felipe H G Duarte, Manuel Dos S Faria, Monica R Gadelha, Heraldo M Garmes, Andrea Glezer, Maria Helane Gurgel, Raquel S Jallad, Manoel Martins, Paulo A C Miranda, Renan M Montenegro, Nina R C Musolino, Luciana A Naves, Antônio Ribeiro-Oliveira Júnior, Cíntia M S Silva, Camila Viecceli, Marcello D Bronstein
Prolactinomas are the most common pituitary adenomas (approximately 40% of cases), and they represent an important cause of hypogonadism and infertility in both sexes. The magnitude of prolactin (PRL) elevation can be useful in determining the etiology of hyperprolactinemia. Indeed, PRL levels > 250 ng/mL are highly suggestive of the presence of a prolactinoma. In contrast, most patients with stalk dysfunction, drug-induced hyperprolactinemia or systemic diseases present with PRL levels < 100 ng/mL. However, exceptions to these rules are not rare...
March 2018: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29753796/the-neuroendocrinology-of-the-microbiota-gut-brain-axis-a-behavioural-perspective
#3
REVIEW
Sofia Cussotto, Kiran V Sandhu, Timothy G Dinan, John F Cryan
The human gut harbours trillions of symbiotic bacteria that play a key role in programming different aspects of host physiology in health and disease. These intestinal microbes are also key components of the gut-brain axis, the bidirectional communication pathway between the gut and the central nervous system (CNS). In addition, the CNS is closely interconnected with the endocrine system to regulate many physiological processes. An expanding body of evidence is supporting the notion that gut microbiota modifications and/or manipulations may also play a crucial role in the manifestation of specific behavioural responses regulated by neuroendocrine pathways...
May 10, 2018: Frontiers in Neuroendocrinology
https://www.readbyqxmd.com/read/29731307/discovery-of-the-first-germline-restricted-gene-by-subtractive-transcriptomic-analysis-in-the-zebra-finch-taeniopygia-guttata
#4
Michelle K Biederman, Megan M Nelson, Kathryn C Asalone, Alyssa L Pedersen, Colin J Saldanha, John R Bracht
Developmentally programmed genome rearrangements are rare in vertebrates, but have been reported in scattered lineages including the bandicoot, hagfish, lamprey, and zebra finch (Taeniopygia guttata) [1]. In the finch, a well-studied animal model for neuroendocrinology and vocal learning [2], one such programmed genome rearrangement involves a germline-restricted chromosome, or GRC, which is found in germlines of both sexes but eliminated from mature sperm [3, 4]. Transmitted only through the oocyte, it displays uniparental female-driven inheritance, and early in embryonic development is apparently eliminated from all somatic tissue in both sexes [3, 4]...
April 28, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29702105/the-volcano-mouse-neotomodon-alstoni-of-central-mexico-a-biological-model-in-the-study-of-breeding-obesity-and-circadian-rhythms
#5
REVIEW
M Miranda-Anaya, M Pérez-Mendoza, C R Juárez-Tapia, A Carmona-Castro
The "Mexican volcano mouse"Neotomodon alstoni, is endemic of the Transverse Neovolcanic Ridge in Central Mexico. It is considered as least concern species and has been studied as a potential laboratory model from different perspectives. Two lines of research in neuroendocrinology have been addressed: reproduction and parental care, particularly focused on paternal attention and the influence of testosterone, and studies on physiology and behavior of circadian rhythms, focused on the circadian biology of the species, its circadian locomotor activity and daily and neuroendocrine regulation of metabolic parameters related to energy balance...
April 24, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29694638/a-review-of-cushing-s-disease-treatment-by-the-department-of-neuroendocrinology-of-the-brazilian-society-of-endocrinology-and-metabolism
#6
Márcio Carlos Machado, Maria Candida Barisson Vilares Fragoso, Ayrton Custódio Moreira, César Luiz Boguszewski, Leonardo Vieira Neto, Luciana A Naves, Lucio Vilar, Luiz Antônio de Araújo, Nina Rosa Castro Musolino, Paulo Augusto C Miranda, Mauro A Czepielewski, Monica R Gadelha, Marcello Delano Bronstein, Antônio Ribeiro-Oliveira
The treatment objectives for a patient with Cushing's disease (CD) are remission of hypercortisolism, adequate management of co-morbidities, restoration of the hypothalamic-pituitary-adrenal axis, preservation of fertility and pituitary function, and improvement of visual defects in cases of macroadenomas with suprasellar extension. Transsphenoidal pituitary surgery is the main treatment option for the majority of cases, even in macroadenomas with low probability of remission. In cases of surgical failure, another subsequent pituitary surgery might be indicated in cases with persistent tumor imaging at post surgical magnetic resonance imaging (MRI) and/or pathology analysis of adrenocorticotropic hormone-positive (ACTH+) positive pituitary adenoma in the first procedure...
February 2018: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29684108/pituitary-diseases-and-bone
#7
Gherardo Mazziotti, Stefano Frara, Andrea Giustina
Neuroendocrinology of bone is a new area of research based on the evidence that pituitary hormones may directly modulate bone remodeling and metabolism. Skeletal fragility associated with high risk of fractures is a common complication of several pituitary diseases such as hypopituitarism, Cushing disease, acromegaly and hyperprolactinemia. As in other forms of secondary osteoporosis, pituitary diseases generally affect bone quality more than bone quantity and fractures may occur even in the presence of normal or low-normal bone mineral density as measured by dual-energy X-ray absorptiometry, making difficult the prediction of fractures in these clinical settings...
April 19, 2018: Endocrine Reviews
https://www.readbyqxmd.com/read/29681935/higher-income-and-integration-into-the-workforce-are-the-main-factors-associated-with-quality-of-life-in-acromegalic-patients-in-northeastern-brazil
#8
Adriana Maria GuimarãesSá, Pedro Antônio Muniz Ferreira, Marinilde Teles Souza, Gilvan Cortês Nascimento, Sabrina da Silva Pereira Damianse, Viviane Chaves de Carvalho Rocha, Manuel Dos Santos Faria, Adalgisa de Souza Paiva Ferreira
Objective: To identify the factors associated with quality of life in patients with acromegaly with follow-up at the referral service in neuroendocrinology of the state of Maranhão, northeast Brazil. Methods: The Acromegaly Quality of Life Questionnaire (Acro-QoL) was used. Factors independently associated with quality of life were identified using multivariate linear regression, with p values < 0.05 considered significant. Results: The multivariate linear regression analysis indicated a positive association between being integrated into the job market and quality of life scores in the overall domain ( β = 0...
2018: International Journal of Endocrinology
https://www.readbyqxmd.com/read/29645316/neuropeptide-and-steroid-hormone-mediators-of-neuroendocrine-regulation
#9
REVIEW
Ashley L Heck, Carlos C Crestani, Alonso Fernández-Guasti, Darwin O Larco, Artur Mayerhofer, Charles E Roselli
In order to maintain the health and wellbeing of all mammals, numerous aspects of physiology are controlled by neuroendocrine mechanisms. These mechanisms ultimately enable communication between neurons and glands throughout the body and are centrally mediated by neuropeptides and/or steroid hormones. A recent session at the International Workshop in Neuroendocrinology highlighted essential roles for some of these neuropeptide and steroid hormone mediators in the neuroendocrine regulation of stress-, reproduction-, and behavior- related processes...
April 12, 2018: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29627929/first-cardiac-manifestation-of-hypotonia-cystinuria-syndrome
#10
Mustafa Kılıç, Ahmet Cevdet Ceylan, Utku Arman Örün, Esra Kılıç
Hypotonia-cystinuria syndrome is a very rare autosomal recessive contiguous gene deletion syndrome of PREPL and SLC3A1 at 2p21 with neuromuscular and neuroendocrinologic presentation. We report a two-year-six-month-old affected female infant and her five-month-old affected brother with a novel homozygous deletion in SLC3A1 and PREPL gene. Both of siblings had mild facial dysmorphism, hypotonia, feeding problems, failure to thrive, developmental delay. She also had dilated cardiomyopathy which differ from other reported patients...
April 7, 2018: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29614951/synergistic-effects-of-brain-derived-neurotrophic-factor-bdnf-and-exercise-intensity-on-memory-in-the-adolescent-brain-a-commentary
#11
Tharmegan Tharmaratnam, Tyler Tabobondung, Taylor Tabobondung, Sally Doherty
This commentary highlights the recently published study by Jeon and Ha (Environ Health Prev Med 22:27, 2017) examining the effects of exercise intensity and brain-derived neurotrophic factor (BDNF) on memory in adolescents. This 12-week training study elicited increases in BDNF and improvements in working memory during moderate- and high-intensity exercise, which may have been achieved through improved brain tissue oxygenation, nutrient delivery, and BDNF mRNA expression. These improvements highlight the positive neuroendocrinological effects of BDNF and its role as a potential candidate molecule, as a mediator of synaptic plasticity...
April 3, 2018: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/29611254/oxytocin-levels-in-saliva-correlate-better-than-plasma-levels-with-concentrations-in-the-cerebrospinal-fluid-of-patients-in-neurocritical-care
#12
Jan Martin, Simone M Kagerbauer, Jens Gempt, Armin Podtschaske, Alexander Hapfelmeier, Gerhard Schneider
In the converging fields of neuroendocrinology and behavioural neuroscience, the interaction between peripheral secretion and central release of oxytocin in humans has not yet been comprehensively assessed. As the human brain is not directly accessible and as the collection of human cerebrospinal fluid (CSF) usually requires invasive procedures, easier accessible compartments such as blood or saliva attract increasing attention. In this study, we prospectively determined oxytocin concentrations in the three compartments plasma, CSF and saliva of fifty critically ill patients with neurological and neurosurgical diseases...
April 3, 2018: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29599751/circadian-rhythms-and-clock-genes-in-reproduction-insights-from-behavior-and-the-female-rabbit-s-brain
#13
REVIEW
Mario Caba, Gabriela González-Mariscal, Enrique Meza
Clock gene oscillations are necessary for a successful pregnancy and parturition, but little is known about their function during lactation, a period demanding from the mother multiple physiological and behavioral adaptations to fulfill the requirements of the offspring. First, we will focus on circadian rhythms and clock genes in reproductive tissues mainly in rodents. Disruption of circadian rhythms or proper rhythmic oscillations of clock genes provoke reproductive problems, as found in clock gene knockout mice...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29545753/neuroendocrine-associations-underlying-the-persistent-therapeutic-effects-of-classic-serotonergic-psychedelics
#14
REVIEW
Emmanuelle A D Schindler, Ryan M Wallace, Jordan A Sloshower, Deepak C D'Souza
Recent reports on the effects of psychedelic-assisted therapies for mood disorders and addiction, as well as the effects of psychedelics in the treatment of cluster headache, have demonstrated promising therapeutic results. In addition, the beneficial effects appear to persist well after limited exposure to the drugs, making them particularly appealing as treatments for chronic neuropsychiatric and headache disorders. Understanding the basis of the long-lasting effects, however, will be critical for the continued use and development of this drug class...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29540178/hypothalamus-pituitary-adrenal-axis-involves-in-anti-viral-ability-through-regulation-of-immune-response-in-piglets-infected-by-highly-pathogenic-porcine-reproductive-and-respiratory-syndrome-virus
#15
Jie Tong, Ying Yu, Linlin Zheng, Chong Zhang, Yabin Tu, Yonggang Liu, Jianan Wu, Hai Li, Shujie Wang, Chenggang Jiang, En-Min Zhou, Gang Wang, Xuehui Cai
BACKGROUND: The highly pathogenic porcine reproductive and respiratory syndrome virus (HP-PRRSV) has been responsible for several viral attacks in the Asian porcine industry, since the first outbreak in China in 2006. During the early stages of the HP-PRRSV infection, high levels of proinflammatory cytokines are noted in the host peripheral blood, which are accompanied by severe lesions in the lungs and immune system organs; these are considered as the greatest contributors to the overall disease burden...
March 14, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29538298/traumatic-brain-injury-at-the-crossroads-of-neuropathology-and-common-metabolic-endocrinopathies
#16
REVIEW
Melanie Li, Swetlana Sirko
Building on the seminal work by Geoffrey Harris in the 1970s, the neuroendocrinology field, having undergone spectacular growth, has endeavored to understand the mechanisms of hormonal connectivity between the brain and the rest of the body. Given the fundamental role of the brain in the orchestration of endocrine processes through interactions among neurohormones, it is thus not surprising that the structural and/or functional alterations following traumatic brain injury (TBI) can lead to endocrine changes affecting the whole organism...
March 14, 2018: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29529990/gender-differences-in-the-psychophysiological-effects-induced-by-vocs-emitted-from-japanese-cedar-cryptomeria-japonica
#17
Eri Matsubara, Shuichi Kawai
BACKGROUND: Wood is a valuable material for interiors, and the psychophysiological relaxation effects of volatile organic compounds (VOCs) from wood chips and essential oils have been reported. However, few studies have identified the odors in full-scale wooden environment, and also, differences in gender have not been clarified. In this study, we aimed to confirm the effects of VOCs emitted from interior wood walls in both human male and female participants. METHODS: We used Japanese cedar timber and analyzed VOCs in the experimental rooms with and without Japanese cedar timber by gas chromatography-mass spectrometry (GC-MS)...
March 12, 2018: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/29510819/primary-empty-sella-syndrome-and-the-prevalence-of-hormonal-dysregulation
#18
Matthias K Auer, Mareike R Stieg, Alexander Crispin, Caroline Sievers, Günter K Stalla, Anna Kopczak
BACKGROUND: Empty sella is the neuroradiological or pathological finding of an apparently empty sella turcica containing no pituitary tissue. The prevalence of primary empty sella, i.e., empty sella without any discernible cause, is not precisely known; estimates range from 2% to 20%. Technical advances in neuroradiology have made empty sella an increasingly common incidental finding. It remains unclear whether, and to what extent, asymptomatic adult patients with an incidentally discovered empty sella should undergo diagnostic testing for hormonal disturbances...
February 16, 2018: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/29453460/development-and-initial-characterization-of-a-novel-ghrelin-receptor-crispr-cas9-knockout-wistar-rat-model
#19
L J Zallar, B J Tunstall, C T Richie, Y J Zhang, Z B You, E L Gardner, M Heilig, J Pickel, G F Koob, L F Vendruscolo, B K Harvey, L Leggio
BACKGROUND/OBJECTIVES: Ghrelin, a stomach-derived hormone implicated in numerous behaviors including feeding, reward, stress, and addictive behaviors, acts by binding to the growth hormone secretagogue receptor (GHSR). Here, we present the development, verification, and initial characterization of a novel GHSR knockout (KO) Wistar rat model created with CRISPR genome editing. METHODS: Using CRISPR/Cas9, we developed a GHSR KO in a Wistar background. Loss of GHSR mRNA expression was histologically verified using RNAscope in wild-type (WT; n = 2) and KO (n = 2) rats...
January 30, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29428549/importance-of-the-brain-corticosteroid-receptor-balance-in-metaplasticity-cognitive-performance-and-neuro-inflammation
#20
REVIEW
E R de Kloet, O C Meijer, A F de Nicola, R H de Rijk, M Joëls
Bruce McEwen's discovery of receptors for corticosterone in the rat hippocampus introduced higher brain circuits in the neuroendocrinology of stress. Subsequently, these receptors were identified as mineralocorticoid receptors (MRs) that are involved in appraisal processes, choice of coping style, encoding and retrieval. The MR-mediated actions on cognition are complemented by slower actions via glucocorticoid receptors (GRs) on contextualization, rationalization and memory storage of the experience. These sequential phases in cognitive performance depend on synaptic metaplasticity that is regulated by coordinate MR- and GR activation...
February 8, 2018: Frontiers in Neuroendocrinology
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