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https://www.readbyqxmd.com/read/28090781/possible-role-of-central-interleukins-on-the-anorexigenic-effect-of-lipopolysaccharide-in-chicks
#1
T Tachibana, T Kodama, S Yamane, R Makino, S I Khan, M A Cline
1. The purpose of the present study was to determine if central interleukin-1β (IL1β), interleukin-6 (IL6), and interleukin-8 (IL8) affect feeding behaviour in chicks (Gallus gallus) and examine if central interleukins are related to the lipopolysaccharide (LPS)-induced anorexia. 2. Intra-abdominal (IA) injection of LPS significantly suppressed feeding behaviour and significantly increased mRNA expression of IL1β and IL8 in the diencephalon when compared to the control group, while IL6 tended to be increased...
January 16, 2017: British Poultry Science
https://www.readbyqxmd.com/read/28081469/anti-osteoporotic-effects-of-an-antidepressant-tianeptine-on-ovariectomized-rats
#2
Osama A Alkhamees, Abdulaziz S Al-Roujayee, Hatem M Abuohashish, Mohammed M Ahmed
In the current investigation, the potential alleviating effects of tianeptine against bone loss induced in ovariectomized (OVX) rats was determined. Two weeks following a bilateral ovariectomy operation, tianeptine treatment (12.5 and 25mg/kg/twice/d) was initiated and continued for twenty-eight consecutive days. Changes in serum and urinary bone turnover biomarkers and osteoclastogenesis-inducing factors were estimated. The femoral bone mineral content was estimated using inductively-coupled-plasma mass spectrometry...
January 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28070618/blunted-5-ht1a-receptor-mediated-responses-and-antidepressant-like-behavior-in-mice-lacking-the-gabab1a-but-not-gabab1b-subunit-isoforms
#3
Laura H Jacobson, Daniel Hoyer, Dominique Fehlmann, Bernhard Bettler, Klemens Kaupmann, John F Cryan
RATIONALE: There is accumulating evidence for a role of GABAB receptors in depression. GABAB receptors are heterodimers of GABAB1 and GABAB2 receptor subunits. The predominant GABAB1 subunit isoforms are GABAB1a and GABAB1b. GABAB1 isoforms in mice differentially influence cognition, conditioned fear, and susceptibility to stress, yet their influence in tests of antidepressant-like activity has not been fully investigated. OBJECTIVES: Given the interactions between GABAB receptors and the serotonergic system and the involvement of 5-HT1A receptors (5-HT1AR) in antidepressant action, we sought to evaluate 5-HT1AR function in GABAB1a(-/-) and GABAB1b(-/-) mice...
January 9, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28070481/lung-adenocarcinoma-and-adrenocortical-carcinoma-in-a-patient-with-multiple-endocrine-neoplasia-type-1
#4
Nobumasa Ohara, Masanori Kaneko, Masahiro Ikeda, Fumio Ishizaki, Kazuya Suzuki, Ryo Maruyama, Takeshi Komeyama, Kazuhiro Sato, Kenichi Togashi, Hiroyuki Usuda, Yuto Yamazaki, Hironobu Sasano, Kenzo Kaneko, Kyuzi Kamoi
Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant disorder caused by heterozygous germline mutations in the tumor suppressor gene MEN1, which encodes a nuclear protein, menin. MEN1 is characterized by the combined occurrence of tumors involving the pituitary gland, pancreatic islets, and parathyroid glands. Additionally, patients with MEN1 often exhibit adrenal tumors. Although most MEN1-associated tumors are benign, malignant lesions arising in these endocrine organs have been reported. Additionally, malignant diseases of non-endocrine organs concomitant with MEN1 have also been reported...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28069032/glucocorticoid-receptor-gene-polymorphisms-in-hereditary-angioedema-with-c1-inhibitor-deficiency
#5
Zsuzsanna Zotter, Zsolt Nagy, Attila Patócs, Dorottya Csuka, Nóra Veszeli, Kinga Viktória Kőhalmi, Henriette Farkas
BACKGROUND: Hereditary angioedema caused by C1-inhibitor deficiency (C1-INH-HAE) is a rare, autosomal dominant disorder. C1-INH-HAE is characterized by edema-formation, which may occur in response to stress. The individual's response to stress stimuli is partly genetically determined. Activation of the hypothalamic-pituitary-adrenal axis results in the release of cortisol. In turn, the secreted gluco- and mineralocorticoids affect the metabolism, as well as the cardiovascular and immune systems...
January 10, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28064407/hair-cortisol-as-a-marker-of-hypothalamic-pituitary-adrenal-axis-activity-in-female-patients-with-major-depressive-disorder
#6
Ksenia Pochigaeva, Tatiana Druzhkova, Alexander Yakovlev, Mikhail Onufriev, Maria Grishkina, Aleksey Chepelev, Alla Guekht, Natalia Gulyaeva
Hair cortisol is regarded as a promising marker of hypothalamic-pituitary-adrenal axis (HPAA) activity alterations due to stress, somatic and mental health conditions. Hair cortisol was previously reported to be elevated in patients with depression, however the data related to remission and recurrent depressive episodes are different. In this study, levels of hair cortisol were assessed in female patients with major depressive disorder (MDD) and the validity of hair cortisol as a marker of HPAA activity in this condition was evaluated...
January 7, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28061972/estrogen-receptors-modulation-of-anxiety-like-behavior
#7
A P Borrow, R J Handa
Estrogens exert profound effects on the expression of anxiety in humans and rodents; however, the directionality of these effects varies considerably within both clinical and preclinical literature. It is believed that discrepancies regarding the nature of estrogens' effects on anxiety are attributable to the differential effects of specific estrogen receptor (ER) subtypes. In this chapter we will discuss the relative impact on anxiety and anxiety-like behavior of each of the three main ERs: ERα, which has a generally anxiogenic effect, ERβ, which has a generally anxiolytic effect, and the G-protein-coupled ER known as GPR30, which has been found to both increase and decrease anxiety-like behavior...
2017: Vitamins and Hormones
https://www.readbyqxmd.com/read/28057851/corticotropin-releasing-hormone-improves-survival-in-pneumococcal-pneumonia-by-reducing-pulmonary-inflammation
#8
Brittney Burnley, Harlan P Jones
The use of glucocorticoids to reduce inflammatory responses is largely based on the knowledge of the physiological action of the endogenous glucocorticoid, cortisol. Corticotropin-releasing hormone (CRH) is a neuropeptide released from the hypothalamic-pituitary-adrenal axis of the central nervous system. This hormone serves as an important mediator of adaptive physiological responses to stress. In addition to its role in inducing downstream cortisol release that in turn regulates immune suppression, CRH has also been found to mediate inflammatory responses in peripheral tissues...
January 2017: Physiological Reports
https://www.readbyqxmd.com/read/28054557/kilohertz-frequency-nerve-block-enhances-anti-inflammatory-effects-of-vagus-nerve-stimulation
#9
Yogi A Patel, Tarun Saxena, Ravi V Bellamkonda, Robert J Butera
Efferent activation of the cervical vagus nerve (cVN) dampens systemic inflammatory processes, potentially modulating a wide-range of inflammatory pathological conditions. In contrast, afferent cVN activation amplifies systemic inflammatory processes, leading to activation of the hypothalamic-pituitary-adrenal (HPA) axis, the sympathetic nervous system through the greater splanchnic nerve (GSN), and elevation of pro-inflammatory cytokines. Ideally, to clinically implement anti-inflammatory therapy via cervical vagus nerve stimulation (cVNS) one should selectively activate the efferent pathway...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28054436/low-dose-of-caffeine-enhances-the-efficacy-of-antidepressants-in-major-depressive-disorder-and-the-underlying-neural-substrates
#10
Qing-Shan Liu, Ran Deng, Yuyan Fan, Keqin Li, Fanggang Meng, Xueli Li, Rui Liu
SCOPE: Caffeine is one of the most frequently used psychoactive substances ingested mainly via beverage or food products. Major depressive disorder is a serious and devastating psychiatric disorder. Emerging evidence indicates that caffeine enhances the antidepressant-like activity of common antidepressant drugs in rodents. However, whether joint administration of low dose of caffeine enhances the antidepressant actions in depressed patients remains unclear. METHODS AND RESULTS: A total of 95 male inpatients were assigned to three groups and were asked to take either caffeine (60, 120mg) or placebo (soymilk powder) daily for 4 weeks on the basis of their current antidepressant medications...
January 5, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28053040/disruption-of-glucagon-like-peptide-1-signaling-in-sim1-neurons-reduces-physiological-and-behavioral-reactivity-to-acute-and-chronic-stress
#11
Sriparna Ghosal, Amy E B Packard, Parinaz Mahbod, Jessica M McKlveen, Randy J Seeley, Brent Myers, Yvonne Ulrich-Lai, Eric P Smith, David A D'Alessio, James P Herman
: Organismal stress initiates a tightly orchestrated set of responses involving complex physiological and neurocognitive systems. Here, we present evidence for glucagon-like peptide 1 (GLP-1)-mediated paraventricular hypothalamic circuit coordinating the global stress response. The GLP-1 receptor (Glp1r) in mice was knocked down in neurons expressing single-minded 1, a transcription factor abundantly expressed in the paraventricular nucleus (PVN) of the hypothalamus. Mice with single-minded 1-mediated Glp1r knockdown had reduced hypothalamic-pituitary-adrenal axis responses to both acute and chronic stress and were protected against weight loss associated with chronic stress...
January 4, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28051939/ecologically-relevant-cooling-early-in-life-alters-prefledging-adrenocortical-response-in-free-living-songbirds
#12
Sharon E Lynn, Michael D Kern
In vertebrates, exposure to stressful stimuli early in development may alter the activity of the hypothalamo-pituitary-adrenal (HPA) axis, with the potential for fitness consequences later in life. For altricial species, whose young rely on their parents for food, warmth, and protection from predators, adult behavior can modify the impact of some stressors on their offspring after birth or hatching. We have shown that single bouts of cooling that normally occur when brooding females leave the nest elevate corticosterone secretion in very young free-living eastern bluebird (Sialia sialis) chicks...
January 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/28049103/depressive-symptom-composites-associated-with-cortisol-stress-reactivity-in-adolescents
#13
Matthew C Morris, Chrystyna D Kouros, Alyssa S Mielock, Uma Rao
BACKGROUND: Altered hypothalamic-pituitary-adrenal (HPA) function is common in youth with major depressive disorder (MDD) but variability in the strength and direction of HPA alterations has prompted a search for symptom-based subtypes with unique neuroendocrine signatures. This study investigated the extent to which depressive symptom composites were differentially associated with cortisol responses to psychosocial stress. METHODS: This study examined salivary cortisol responses to the Trier Social Stress Test (TSST) in 145 adolescents who varied in their risk for MDD: 38 had current MDD; 35 were healthy but at high risk for MDD based on having one or both parents with unipolar MDD; and 72 were healthy youth with no personal or family history of a psychiatric disorder...
December 20, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28045308/everyday-unfair-treatment-and-multisystem-biological-dysregulation-in-african-american-adults
#14
Anthony D Ong, David R Williams, Ujuonu Nwizu, Tara L Gruenewald
OBJECTIVE: Increasing evidence suggests that chronic exposure to unfair treatment or day-to-day discrimination increases risk for poor health, but data on biological stress mechanisms are limited. This study examined chronic experiences of unfair treatment in relation to allostatic load (AL), a multisystem index of biological dysregulation. METHOD: Data are from a sample of 233 African-American adults (37-85 years; 64% women). Perceptions of everyday unfair treatment were measured by questionnaire...
January 2017: Cultural Diversity & Ethnic Minority Psychology
https://www.readbyqxmd.com/read/28045098/effects-of-elevated-%C3%AE-estradiol-levels-on-the-functional-morphology-of-the-testis-new-insights
#15
Myles Leavy, Matthias Trottmann, Bernhard Liedl, Sven Reese, Christian Stief, Benjamin Freitag, John Baugh, Giulio Spagnoli, Sabine Kölle
Elevated estradiol levels are correlated with male infertility. Causes of hyperestrogenism include diseases of the adrenal cortex, testis or medications affecting the hypothalamus-pituitary-gonadal axis. The aim of our study was to elucidate the effects of estradiol treatment on testicular cellular morphology and function, with reference to the treatment regimen received. Testes samples (n = 9) were obtained post-orchiectomy from male-to-female transsexuals within the age range of 26-52 years. Each patient had a minimum of 1-6 years estradiol treatment...
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28043861/the-importance-of-the-hypothalamo-pituitary-adrenal-axis-as-a-therapeutic-target-in-anorexia-nervosa
#16
REVIEW
Rami Bou Khalil, Lama Souaiby, Nassim Farès
Anorexia nervosa (AN) is an eating disorder, mainly affecting women, with a lifetime prevalence of about 1%, that can run a chronic course. While an effective pharmacotherapy is lacking, it is hypothesized that the progesterone and type II glucocorticoid receptor antagonist mifepristone (RU486) might be useful, as it is well known that the hypothalamo-pituitary-adrenal axis (HPA) is activated in AN. Even if secondary to the eating disorder, an active HPA axis may contribute to maintaining the neuroendocrine, emotional and behavioral effects observed in AN...
December 30, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/28042495/cortisol-reactions-during-family-conflict-discussions-influences-of-wives-and-husbands-exposure-to-family-of-origin-aggression
#17
Reout Arbel, Aubrey J Rodriguez, Gayla Margolin
OBJECTIVE: Though family-of-origin aggression (FOA) is a known risk for later emotional and physical problems in adulthood, little is known about how early exposure to aggression influences physiological reactivity in the domain-specific context of family conflict experienced as an adult. This study investigates whether report of FOA influences spouses' hypothalamic-pituitary-adrenal (HPA) axis responses during conflict discussions with their family-of-procreation and also whether current hostilities, observed during a family discussion, moderate those responses...
October 2016: Psychology of Violence
https://www.readbyqxmd.com/read/28035585/effect-of-exercise-on-ovulation-a-systematic-review
#18
REVIEW
Osnat Hakimi, Luiz-Claudio Cameron
BACKGROUND: Infertility has been described as a devastating life crisis for couples, and has a particularly severe effect on women, in terms of anxiety and depression. Anovulation accounts for around 30% of female infertility, and while lifestyle factors such as physical activity are known to be important, the relationship between exercise and ovulation is multi-factorial and complex, and to date there are no clear recommendations concerning exercise regimes. OBJECTIVES: The objective of this review was to systematically assess the effect of physical activity on ovulation and to discuss the possible mechanisms by which exercise acts to modulate ovulation in reproductive-age women...
December 29, 2016: Sports Medicine
https://www.readbyqxmd.com/read/28035535/the-role-of-the-gastrointestinal-microbiota-in-visceral-pain
#19
Kieran Rea, Siobhain M O'Mahony, Timothy G Dinan, John F Cryan
A growing body of preclinical and clinical evidence supports a relationship between the complexity and diversity of the microorganisms that inhabit our gut (human gastrointestinal microbiota) and health status. Under normal homeostatic conditions this microbial population helps maintain intestinal peristalsis, mucosal integrity, pH balance, immune priming and protection against invading pathogens. Furthermore, these microbes can influence centrally regulated emotional behaviour through mechanisms including microbially derived bioactive molecules (amino acid metabolites, short-chain fatty acids, neuropeptides and neurotransmitters), mucosal immune and enteroendocrine cell activation, as well as vagal nerve stimulation...
December 30, 2016: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/28030969/the-effects-of-trait-and-state-affect-on-diurnal-cortisol-slope-among-children-affected-by-parental-hiv-aids-in-rural-china
#20
Lihua Chen, Peilian Chi, Xiaoming Li, Samuele Zilioli, Junfeng Zhao, Guoxiang Zhao, Danhua Lin
Affect is believed to be one of the most prominent proximal psychological pathway through which more distal psychosocial factors influence physiology and ultimately health. The current study examines the relative contributions of trait affect and state affect to the hypothalamic-pituitary-adrenal axis activity, with particular focus on cortisol slope, in children affected by parental HIV/AIDS. A sample of 645 children (8-15 years old) affected by parental HIV/AIDS in rural China completed a multiple-day naturalistic salivary cortisol protocol...
December 28, 2016: AIDS Care
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