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https://www.readbyqxmd.com/read/29454288/apocynum-venetum-leaf-extract-reverses-depressive-like-behaviors-in-chronically-stressed-rats-by-inhibiting-oxidative-stress-and-apoptosis
#1
Xiangting Li, Ting Wu, Zhonghai Yu, Tingting Li, Jingsi Zhang, Zhennian Zhang, Min Cai, Wen Zhang, Jun Xiang, Dingfang Cai
BACKGROUND: Major depressive disorder (MDD) is a common but serious psychiatric disorder, but current treatments are inadequate for approximately half of the patients with MDD. Thus, better methods of treatment are urgently needed. This study aimed to investigate the antidepressant-like effects and potential mechanism of Apocynum venetum leaf extract (AVLE) in chronic unpredictable mild stress (CUMS) rat model of depression. MATERIALS AND METHODS: The CUMS rat model of depression was used to investigate the antidepressant-like activity and relevant mechanism of AVLE (30, 60, and 125 mg/kg, i...
February 14, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29454165/pituitary-gland-shrinkage-in-bipolar-disorder-the-role-of-gender
#2
Giuseppe Delvecchio, Gian Mario Mandolini, Cinzia Perlini, Marco Barillari, Veronica Marinelli, Mirella Ruggeri, A Carlo Altamura, Marcella Bellani, Paolo Brambilla
BACKGROUND: Hyperactivity of the Hypothalamic-Pituitary-Adrenal Axis (HPAA) has been consistently reported in mood disorders. However, only few studies investigated the Pituitary gland (PG) in Bipolar Disorder (BD) and the results are so far contrasting. Therefore, the aim of this study is to explore the integrity of the PG as well as the role of gender and the impact of clinical measurements on this structure in a sample of BD patients compared to healthy controls (HC). METHODS: 34 BD patients and 41 HC underwent a 1...
February 14, 2018: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/29453925/impact-of-opioid-therapy-on-gonadal-hormones-focus-on-buprenorphine
#3
REVIEW
Anjali Varma, Mamta Sapra, Ali Iranmanesh
Objective The USA is in the midst of an opioid crisis. Understanding the impact of opioids and commonly used treatments for opioid dependence is essential for clinicians and researchers in order to educate and treat the nation's growing population with opioid use disorders. As a relatively new treatment for opioid dependence, buprenorphine is gaining popularity to the extent of becoming not only a preferred approach to the maintenance of opiate addiction, but also an option for chronic pain management. The purpose of this report is to review the available evidence on the endocrine effects of buprenorphine, particularly as it relates to the hypothalamic-pituitary-gonadal (HPG) axis, which is controversial and not fully defined...
February 17, 2018: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/29452193/antidepressant-activity-of-vorinostat-is-associated-with-amelioration-of-oxidative-stress-and-inflammation-in-a-corticosterone-induced-chronic-stress-model-in-mice
#4
Athira Kv, Rajaram Mohanrao Madhana, Indu Chandran Js, Mangala Lahkar, Swapnil Sinha, V G M Naidu
Major depressive disorder (MDD) is a multifactorial neuropsychiatric disorder. Chronic administration of corticosterone (CORT) to rodents is used to mimic the stress associated dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis, a well-established feature found in depressive patients. Recently, preclinical studies have demonstrated the antidepressant potential of histone deacetylase (HDAC) inhibitors. So, we examined the antidepressant potential of vorinostat (VOR), a HDAC inhibitor against CORT injections in male mice...
February 13, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29452075/physiological-correlates-of-reproductive-decisions-relationships-among-body-condition-reproductive-status-and-the-hypothalamus-pituitary-adrenal-axis-in-a-reptile
#5
Catherine A Dayger, Michael P LeMaster, Deborah I Lutterschmidt
When opportunities to feed and reproduce are limited, females are often unable to recover sufficient energy stores to reproduce in consecutive years. Body condition has been used as a proxy for recent reproductive history in such species. We previously found that glucocorticoid responses to capture stress vary with body condition in female red-sided garter snakes (Thamnophis sirtalis parietalis), a species with limited seasonal breeding opportunities. Because variation in glucocorticoid receptor (GR) protein in the brain could explain these differences, we first assessed GR protein content in females in different body conditions...
February 13, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29450650/access-to-the-cns-biomarker-strategies-for-dopaminergic-treatments
#6
REVIEW
Willem Johan van den Brink, Semra Palic, Isabelle Köhler, Elizabeth Cunera Maria de Lange
Despite substantial research carried out over the last decades, it remains difficult to understand the wide range of pharmacological effects of dopaminergic agents. The dopaminergic system is involved in several neurological disorders, such as Parkinson's disease and schizophrenia. This complex system features multiple pathways implicated in emotion and cognition, psychomotor functions and endocrine control through activation of G protein-coupled dopamine receptors. This review focuses on the system-wide effects of dopaminergic agents on the multiple biochemical and endocrine pathways, in particular the biomarkers (i...
February 15, 2018: Pharmaceutical Research
https://www.readbyqxmd.com/read/29449045/how-to-measure-glucocorticoid-receptor-s-sensitivity-in-patients-with-stress-related-psychiatric-disorders
#7
REVIEW
Carolin Leistner, Andreas Menke
Stress is a state of derailed homeostasis and a main environmental risk factor for psychiatric diseases. Chronic or uncontrollable stress may lead to a dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis, which is a common feature of stress-related psychiatric disorders. One of the key mechanisms underlying a disturbed HPA axis is an impaired function of the glucocorticoid receptor (GR) with an enhanced or reduced feedback sensitivity for glucocorticoids and subsequently altered concentrations of peripheral cortisol...
February 2, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29444258/modeling-the-influence-of-seasonal-differences-in-the-hpa-axis-on-synchronization-of-the-circadian-clock-and-cell-cycle
#8
Kamau Pierre, Rohit T Rao, Clara Hartmanshenn, Ioannis P Androulakis
Synchronization of biological functions to environmental signals enables organisms to anticipate and appropriately respond to daily external fluctuations and is critical to the maintenance of homeostasis. Misalignment of circadian rhythms with environmental cues is associated with adverse health outcomes. Cortisol, the downstream effector of hypothalamic-pituitary-adrenal (HPA) activity, facilitates synchronization of peripheral biological processes to the environment. Cortisol levels exhibit substantial seasonal rhythmicity, with peak levels occurring during the short-photoperiod winter months and reduced levels occurring in the long-photoperiod summer season...
February 12, 2018: Endocrinology
https://www.readbyqxmd.com/read/29442480/cushing-s-disease-major-difficulties-in-diagnosis-and-management-during-pregnancy
#9
Francisca Caimari, Rosa Corcoy, Susan M Webb
Pregnancy in women with a diagnosis of Cushing' syndrome (CS) is an extremely rare event and its diagnosis and treatment are a real medical challenge. During pregnancy, the hypothalamus-pituitary-adrenal axis undergoes major changes leading to a significant increase in plasma cortisol levels throughout gestation. The difficulties in diagnosis are related to the resemblance of symptoms of CS and those of pregnancy, and to the complex interpretation of the screening tests. Moreover, the diagnostic work up in the postnatal period may be difficult in the first weeks postpartum...
February 13, 2018: Minerva Endocrinologica
https://www.readbyqxmd.com/read/29442094/a-potential-side-effect-of-oral-topical-steroids-central-serous-chorioretinopathy
#10
Saranya George, Anita Balan
Topical corticosteroids are some of the most common drugs used in oral medicine for treating atrophic and erosive lesions that affect the mucosa. Adverse effects of these drugs include oral candidiasis with associated burning mouth and hypogeusia, hypersensitive reactions to the drug, and inhibition of the hypothalamic-pituitary-adrenal axis and secondary adrenal insufficiency. The ocular side effects of oral topical steroids are less documented. This short communication describes a case of central serous retinopathy that developed following administration of oral topical steroid...
January 2018: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/29440941/sleep-disturbances-in-women-with-polycystic-ovary-syndrome-prevalence-pathophysiology-impact-and-management-strategies
#11
REVIEW
Renae C Fernandez, Vivienne M Moore, Emer M Van Ryswyk, Tamara J Varcoe, Raymond J Rodgers, Wendy A March, Lisa J Moran, Jodie C Avery, R Doug McEvoy, Michael J Davies
Polycystic ovary syndrome (PCOS) is a complex endocrine disorder affecting the reproductive, metabolic and psychological health of women. Clinic-based studies indicate that sleep disturbances and disorders including obstructive sleep apnea and excessive daytime sleepiness occur more frequently among women with PCOS compared to comparison groups without the syndrome. Evidence from the few available population-based studies is supportive. Women with PCOS tend to be overweight/obese, but this only partly accounts for their sleep problems as associations are generally upheld after adjustment for body mass index; sleep problems also occur in women with PCOS of normal weight...
2018: Nature and Science of Sleep
https://www.readbyqxmd.com/read/29440375/preoperative-medical-treatment-in-cushing-s-syndrome-frequency-of-use-and-its-impact-on-postoperative-assessment-data-from-ercusyn
#12
Elena Valassi, Holger Franz, Thierry Brue, Richard A Feelders, Romana T Netea-Maier, Stylianos Tsagarakis, Susan M Webb, Maria Kostadinova Yaneva, Martin Reincke, Michael Droste, Irina Komerdus, Dominique Maiter, Darko Kastelan, Philippe Chanson, Marija Pfeifer, Christian J Strasburger, Miklos Toth, Olivier Chabre, Michal Krsek, Carmen Fajardo Montañana, Marek Bolanowski, Alicia Santos, Peter J Trainer, John A H Wass, Antoine Tabarin
BACKGROUND: Surgery is the definitive treatment of Cushing's syndrome (CS) but medications may also be used as a first-line therapy. Whether preoperative medical treatment (PMT) affects postoperative outcome remains controversial. OBJECTIVE: 1) Evaluate how frequently PMT is given to CS patients across Europe 2) examine differences in preoperative characteristics of patients who receive PMT and those who undergo primary surgery; 3) determine if PMT influences postoperative outcome in pituitary-dependent CS (PIT-CS)...
February 12, 2018: European Journal of Endocrinology
https://www.readbyqxmd.com/read/29436637/nicotinamide-phosphoribosyltransferase-and-the-hypothalamic-pituitary-adrenal-axis-of-the-rat
#13
Piotr Celichowski, Karol Jopek, Paulina Milecka, Marta Szyszka, Marianna Tyczewska, Ludwik K Malendowicz, Marcin Ruciński
Nicotinamide phosphoribosyltransferase (Nampt), also termed visfatin, catalyses the rate‑limiting step in the nicotinamide adenine dinucleotide (NAD) salvage pathway. In addition to its intracellular function (iNampt), extracellular Nampt (eNampt) also affects numerous intracellular signalling pathways. The current study investigated the role of Nampt in the regulation of the hypothalamic‑pituitary‑adrenal (HPA) axis in rats. At 1 h after intraperitoneal administration of eNampt (4 µg/100 g) in adult male rats, serum adrenocorticotropic hormone(ACTH) and aldosterone levels remained unchanged, while corticosterone levels were notably elevated compared with the control group, as determined by ELISA...
February 7, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29434541/the-influence-of-early-life-experience-on-visceral-pain
#14
REVIEW
Isabella M Fuentes, Julie A Christianson
Pain is the most reported and troublesome symptom of nearly all functional disorders affecting the genitourinary and gastrointestinal organs. Patients with irritable bowel syndrome (IBS), interstitial cystitis/painful bladder syndrome (IC/PBS), vulvodynia, and/or chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS; collectively termed chronic pelvic pain syndromes) report pain severe enough to impact quality of life and often suffer from symptoms of or are diagnosed with more than one of these syndromes...
2018: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/29433075/glucocorticoid-receptor-gene-methylation-moderates-the-association-of-childhood-trauma-and-cortisol-stress-reactivity
#15
Nina Alexander, Clemens Kirschbaum, Matthis Wankerl, Benjamin J Stauch, Tobias Stalder, Susann Steudte-Schmiedgen, Markus Muehlhan, Robert Miller
Exposure to childhood trauma (CT) has been linked to sustained dysregulations of major stress response systems, including findings of both exaggerated and attenuated hypothalamus-pituitary-adrenal (HPA) axis activity. Likewise, CT constitutes a common risk factor for a broad range of psychiatric conditions that involve distinct neuroendocrine profiles. In this study, we investigated the role of epigenetic variability in a stress-related gene as a potential mediator or moderator of such differential trajectories in CT survivors...
January 31, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29433073/link-between-children-s-hair-cortisol-and-psychopathology-or-quality-of-life-moderated-by-childhood-adversity-risk
#16
Anna Fuchs, Charlotte Jaite, Corinne Neukel, Katja Dittrich, Katja Bertsch, Dorothea Kluczniok, Eva Möhler, Catherine Hindi Attar, Romuald Brunner, Katja Bödeker, Franz Resch, Felix Bermpohl, Michael Kaess
The hypothalamus-pituitary-adrenal axis (HPAA) and its end product, the glucocorticoid cortisol, has been shown to be associated with psychopathology. Determining cortisol concentrations in hair (HCC) allows the investigation of long-term HPAA-activity. There is a significant scarcity of studies investigating the link between HCC and psychopathology and quality of life in child and adolescent samples. In addition, as the HPAA constitutes a feedback system enabling adaption to environmental demands, it is important to consider the socio-environmental context that the children grow up in...
February 6, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29432878/longitudinal-associations-between-glucocorticoid-receptor-methylation-and-late-life-depression
#17
Hee-Ju Kang, Kyung-Yeol Bae, Sung-Wan Kim, Il-Seon Shin, Hye-Ran Kim, Myung-Geun Shin, Jin-Sang Yoon, Jae-Min Kim
It has been suggested that hypothalamus-pituitary-adrenal (HPA) axis dysregulation plays a role in the etiology of depression. HPA axis function is mediated by glucocorticoid receptors (GRs), which are influenced by epigenetic mechanisms (DNA methylation). The association between the DNA methylation of the GR gene (nuclear receptor subfamily 3, group C, member 1; NR3C1) and late-life depression as well as the role of NR3C1 methylation in the prediction of the incidence of depression have not yet been investigated...
February 9, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29429352/-extraadrenal-glucocorticoid-synthesis
#18
Ágnes Szappanos, Katalin Mészáros, Zsolt Nagy, Annamária Kövesdi, István Likó, Emese Kiss, Miklós Tóth, Attila Patócs
Endogenous glucocorticoids exert a diverse array of physiological processes and play an important role in immune modulatory and anti-inflammatory responses. The secretion of cortisol by the adrenal gland is regulated through two mechanisms. Systemic regulation is substantiating by the hypothalamo-pituitary-adrenal axis. Furthermore, a tissue-specific local regulatory system, containing the 11β-hydroxysteroid dehydrogenase enzyme responsible for local glucocorticoid synthesis and the glucocorticoid receptor, has also been demonstrated...
February 2018: Orvosi Hetilap
https://www.readbyqxmd.com/read/29425788/trait-mindfulness-predicts-the-presence-but-not-the-magnitude-of-cortisol-responses-to-acute-stress
#19
Andrew W Manigault, Alex Woody, Peggy M Zoccola, Sally S Dickerson
BACKGROUND: Mindfulness, or the practice of observing present moment experiences with acceptance, is thought to improve health at least partially by limiting hypothalamic-pituitary-adrenal (HPA) axis over-responsiveness during episodes of acute stress. However, models of allostatic load suggest that HPA axis under-responsiveness can also be detrimental to health, and the relationship between mindfulness and cortisol under-responsiveness has yet to be examined. The present study therefore aimed to address this knowledge gap, and to revisit the relationship between mindfulness and acute cortisol response magnitude while excluding (or statistically controlling for) individuals displaying HPA axis under-responsiveness...
January 31, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29421453/adrenal-axis-insufficiency-following-endoscopic-transsphenoidal-resection-of-pituitary-adenomas
#20
Abdulrazag Ajlan, Khadeejah A Almufawez, Abdulrahman Albakr, Laurence Katznelson, Griffith R Harsh
INTRODUCTION: Hormonal insufficiency of one or more pituitary axes can appear after pituitary surgery. Adrenal axis impairment after surgery can lead to serious consequences if not identified and treated. OBJECTIVE: Assess early and late post-operative adrenal insufficiency (AI) and identify the risk factors predicting their occurrence after endoscopic transsphenoidal resection of pituitary adenomas. METHOD: Retrospective review identified 176 pituitary adenomas resected using an endoscopic transsphenoidal approach...
February 5, 2018: World Neurosurgery
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