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https://www.readbyqxmd.com/read/28789856/age-related-differences-in-stress-responsiveness-of-the-hypothalamic-pituitary-adrenal-axis-of-nonhuman-primates-with-various-types-of-adaptive-behavior
#1
Nadezhda D Goncharova, Tamara E Oganyan
Aging is characterized by disturbances in the functioning of the hypothalamic-pituitary-adrenal (HPA) axis, associated with disturbances in the adaptation processes and increase of the probability of the onset of post-stress syndrome. However, the individual features of age-related disorders stress reactivity of HPA axis have not been studied. The purpose was to study individual characteristics of the HPA axis responsiveness to acute psycho-emotional stress exposure (restraint, ASE) at different age periods on the model of the young adult and old physically healthy female rhesus monkeys that differ in their behavioral responses to stress, i...
August 5, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28764237/local-injection-of-triamcinolone-acetonide-a-forgotten-aetiology-of-cushing-s-syndrome
#2
Weera Sukhumthammarat, Prapaipan Putthapiban, Chutintorn Sriphrapradang
Many different non systemic corticosteroid administrations can cause iatrogenic Cushing's Syndrome (CS). We herein report a case series of iatrogenic CS from keloid scars treatment and aesthetic regimen called mesotherapy. Our first patient developed CS after having exceeded recommended dose of intralesional injection of Triamcinolone Acetonide (TAC). Second case presented with CS followed by unidentified mesotherapy treatment for local fat reduction. Subcutaneous injections of dexamethasone were found to be the part of mesotherapy regimen in one case...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28745143/high-fat-simple-carbohydrate-hfsc-diet-impairs-hypothalamic-and-corpus-striatal-serotonergic-metabolic-pathway-in-metabolic-syndrome-mets-induced-c57bl-6j-mice
#3
DSouza Serena Stephen, Asha Abraham
OBJECTIVES: To study the effect of specially formulated high-fat simple carbohydrate diet (HFSC) on the serotonin metabolic pathway in male C57BL/6J mice. METHODS: Previous studies from our laboratory have shown that specially formulated HFSC induces metabolic syndrome in C57BL/6J mice. In the present investigation, 5-hydroxytryptophan, serotonin and 5-hydroxyindoleacetic acid were analyzed in two brain regions (hypothalamus, corpus striatum), urine and plasma of HFSC-fed mice on a monthly basis up to 5 months using high-performance liquid chromatography fitted with electrochemical detector...
July 26, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28730707/establishment-and-characterization-of-a-novel-murine-model-of-pancreatic-cancer-cachexia
#4
Katherine A Michaelis, Xinxia Zhu, Kevin G Burfeind, Stephanie M Krasnow, Peter R Levasseur, Terry K Morgan, Daniel L Marks
BACKGROUND: Cachexia is a complex metabolic and behavioural syndrome lacking effective therapies. Pancreatic ductal adenocarcinoma (PDAC) is one of the most important conditions associated with cachexia, with >80% of PDAC patients suffering from the condition. To establish the cardinal features of a murine model of PDAC-associated cachexia, we characterized the effects of implanting a pancreatic tumour cell line from a syngeneic C57BL/6 KRAS(G12D) P53(R172H) Pdx-Cre(+/+) (KPC) mouse...
July 20, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28718999/resilience-is-decreased-in-irritable-bowel-syndrome-and-associated-with-symptoms-and-cortisol-response
#5
S H Park, B D Naliboff, W Shih, A P Presson, E J Videlock, T Ju, L Kilpatrick, A Gupta, E A Mayer, L Chang
BACKGROUND: Irritable bowel syndrome (IBS) is a stress-sensitive disorder associated with early adverse life events (EALs) and a dysregulated hypothalamic-pituitary-adrenal (HPA) axis. Resilience is the ability to recover and adapt positively to stress but has not been well studied in IBS. The aims of this study are to compare resilience in IBS and healthy controls (HCs) and to assess its relationships with IBS symptom severity, quality of life (QOL), EALs, and HPA axis response. METHODS: Two hundred fifty-six subjects (154 IBS, 102 HCs) completed questionnaires for resilience (Connor-Davidson Resilience Scale [CD-RISC] and Brief Resilience Scale [BRS]), IBS symptoms, IBS-QOL, and EALs...
July 18, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28716240/a-study-of-neuroendocrine-dysfunction-in-patients-of-tuberculous-meningitis
#6
Aniruddha More, Rajesh Verma, Ravindra Kumar Garg, Hardeep Singh Malhotra, Praveen Kumar Sharma, Ravi Uniyal, Shweta Pandey, Madhukar Mittal
BACKGROUND: Endocrine dysfunction is known to occur in various infectious diseases of the brain. The neuroendocrine dysfunction is not well studied in patients of Tuberculous meningitis (TBM). In this study, we aimed at knowing pattern of endocrine dysfunction in newly diagnosed patients of tuberculous meningitis, structural changes occurring in hypothalamic-pituitary region, assessing its predictors and correlative factors related to outcome. MATERIALS AND METHODS: This was a prospective observational study...
August 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28708669/the-role-of-hypothalamic-inflammation-the-hypothalamic-pituitary-adrenal-axis-and-serotonin-in-the-cancer-anorexia-cachexia-syndrome
#7
Klaske van Norren, Jvalini T Dwarkasing, Renger F Witkamp
PURPOSE OF REVIEW: In cancer patients, the development of cachexia (muscle wasting) is frequently aggravated by anorexia (loss of appetite). Their concurrence is often referred to as anorexia-cachexia syndrome. This review focusses on the recent evidence underlining hypothalamic inflammation as key driver of these processes. Special attention is given to the involvement of hypothalamic serotonin. RECENT FINDINGS: The anorexia-cachexia syndrome is directly associated with higher mortality in cancer patients...
July 13, 2017: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/28694181/allopregnanolone-involvement-in-feeding-regulation-overeating-and-obesity
#8
E Holmberg, J Sjöstedt, E Malinina, M Johansson, S Turkmen, G Ragagnin, A Lundqvist, M Löfgren, L Jaukkuri, M Bixo, T Bäckström
Obesity is strongly associated with ill health, primarily caused by consumption of excessive calories, and promoted (inter alia) by gamma-amino-butyric-acid (GABA) stimulating food intake by activating GABAA receptors (primarily with α3 and α2 subunits) in the hypothalamic arcuate nucleus and paraventricular nucleus. Allopregnanolone is a potent positive GABAA receptor modulating steroid (GAMS). As reviewed here, elevated allopregnanolone levels are associated with increases in food intake, preferences for energy-rich food, and obesity in humans and other mammals...
July 8, 2017: Frontiers in Neuroendocrinology
https://www.readbyqxmd.com/read/28692781/depression-as-a-risk-factor-of-organic-diseases-an-international-integrative-review
#9
Teodora Bica, Ruth Castelló, Loren L Toussaint, Pilar Montesó-Curto
PURPOSE AND DESIGN: This integrative review offers a systematic synthesis of the international literature regarding the role of depression as a risk factor in physical illnesses and the mechanisms of this connection. Special attention is paid to those modifiable factors. FINDINGS: Published studies of depression and physical illness and disease(N = 24) from five countries that were indexed in PubMed, the Cumulative Index to Nursing and Allied Health Literature (CINAHL), APA PsycNET, Scopus, Dialnet, and CUIDEN were examined...
July 2017: Journal of Nursing Scholarship
https://www.readbyqxmd.com/read/28690985/metabolic-syndrome-induced-by-anticancer-treatment-in-childhood-cancer-survivors
#10
REVIEW
Hee Won Chueh, Jae Ho Yoo
The number of childhood cancer survivors is increasing as survival rates improve. However, complications after treatment have not received much attention, particularly metabolic syndrome. Metabolic syndrome comprises central obesity, dyslipidemia, hypertension, and insulin resistance, and cancer survivors have higher risks of cardiovascular events compared with the general population. The mechanism by which cancer treatment induces metabolic syndrome is unclear. However, its pathophysiology can be categorized based on the cancer treatment type administered...
June 2017: Annals of Pediatric Endocrinology & Metabolism
https://www.readbyqxmd.com/read/28669481/impact-of-the-opioid-system-on%C3%A2-the%C3%A2-reproductive-axis
#11
REVIEW
Bettina Böttcher, Beata Seeber, Gerhard Leyendecker, Ludwig Wildt
Endogenous opioids, first described more than 40 years ago, have long been recognized for their main role as important neuromodulators within the central nervous system. More recently endogenous opioids and their receptor have been identified in a variety of reproductive and nonreproductive tissues outside the central nervous system. Their role within these tissues and organs, however, is only incompletely understood. In the central nervous system, endogenous opioids inhibit pulsatile GnRH release, in part mediating the stress response within the central nervous-pituitary gonadal axis, resulting in hypothalamic amenorrhea...
June 29, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28667503/antipyretic-effects-of-citral-and-possible-mechanisms-of-action
#12
Maycon T Emílio-Silva, Clarissa M D Mota, Clélia A Hiruma-Lima, José Antunes-Rodrigues, Evelin C Cárnio, Luiz G S Branco
Citral is a mixture of the two monoterpenoid isomers (neral and geranial) widely used as a health-promoting food additive safe for human and animal (approved by the US Food and Drug Administration). In vitro studies have reported on the capability of citral to reduce inflammation. Here, we report antipyretic effects of citral in vivo using the most well-accepted model of sickness syndrome, i.e., systemic administration of lipopolysaccharide ( LPS ) to rats. Citral given by gavage caused no change in control euthermic rats (treated with saline) but blunted most of the assessed parameters related to the sickness syndrome [fever (hallmark of infection), plasma cytokines (IL-1β, IL-6, and TNF-α) release, and prostaglandin E2 (PGE2) synthesis (both peripherally and hypothalamic)]...
June 30, 2017: Inflammation
https://www.readbyqxmd.com/read/28661901/long-term-and-late-treatment-consequences-endocrine-and-metabolic-effects
#13
Thang S Han, Helena K Gleeson
PURPOSE OF REVIEW: Cancer therapies often result in the 'late effect of cancer treatment' whereby secondary health complications emerge years after radiotherapy and chemotherapy. This review focuses on endocrine and metabolic consequences in adult cancer survivors as late treatment effects. RECENT FINDINGS: Endocrine and metabolic disorders are among the most common late effects. Endocrine disorders include hypopituitarism, which leads to growth hormone deficiency, hypogonadism, adrenal insufficiency and hypothyroidism and related clinical manifestations...
September 2017: Current Opinion in Supportive and Palliative Care
https://www.readbyqxmd.com/read/28652501/serum-levels-of-neuroactive-steroids-in-first-episode-antipsychotic-na%C3%A3-ve-schizophrenic-patients-and-its-correlation-with-aggression-a-case-control-study
#14
R K Solanki, P Sharma, A Tyagi, C Singh
BACKGROUND: The evidence of hypothalamic-pituitary-adrenal axis dysfunction in schizophrenia has been reviewed in the context of the stress-diathesis model. Overactivation of this axis leads to altered blood levels of cortisol and dehydroepiandrosterone sulfate (DHEA-S). These neurosteroids in turn act on the hippocampus and interact with gamma-aminobutyric acid and N-methyl-D-aspartate receptors leading to neurotoxicity and may be involved in the neurobiology of aggression. This study aimed to explore the blood level of these neurosteroids and ascertain its correlation with state aggression and psychopathology in first-episode antipsychotic-naïve schizophrenic patients...
June 2017: East Asian Archives of Psychiatry: Official Journal of the Hong Kong College of Psychiatrists
https://www.readbyqxmd.com/read/28651353/protein-tyrosine-phosphatase-1b-mediates-sleep-fragmentation-induced-insulin-resistance-and-visceral-adipose-tissue-inflammation-in-mice
#15
David Gozal, Abdelnaby Khalyfa, Zhuanghong Qiao, Mahzad Akbarpour, Rosanna Maccari, Rosaria Ottanà
Study Objectives: Sleep fragmentation (SF) is highly prevalent and has emerged as an important contributing factor to obesity and metabolic syndrome. We hypothesized that SF-induced increases in protein tyrosine phosphatase-1B (PTP-1B) expression and activity underlie increased food intake, inflammation, and leptin and insulin resistance. Methods: Wild type (WT) and ObR-PTP-1b-/- mice (Tg) were exposed to SF and control sleep (SC), and food intake was monitored...
June 23, 2017: Sleep
https://www.readbyqxmd.com/read/28648620/iron-overload-induces-hypogonadism-in-male-mice-via-extrahypothalamic-mechanisms
#16
Chiara Macchi, Liliana Steffani, Roberto Oleari, Antonella Lettieri, Luca Valenti, Paola Dongiovanni, Antonio Romero-Ruiz, Manuel Tena-Sempere, Anna Cariboni, Paolo Magni, Massimiliano Ruscica
INTRODUCTION: Iron overload leads to multiple organ damage including endocrine organ dysfunctions. Hypogonadism is the most common non-diabetic endocrinopathy in primary and secondary iron overload syndromes. AIM: To explore the molecular determinants of iron overload-induced hypogonadism with specific focus on hypothalamic derangements. A dysmetabolic male murine model fed iron-enriched diet (IED) and cell-based models of gonadotropin-releasing hormone (GnRH) neurons were used...
October 15, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28625926/prenatal-caffeine-exposure-induced-high-susceptibility-to-metabolic-syndrome-in-adult-female-offspring-rats-and-its-underlying-mechanisms
#17
Lin-Guo Pei, Chao Yuan, Yi-Tian Guo, Hao Kou, Li-Ping Xia, Li Zhang, You-E Yan, Dan Xu, Hui Wang
Our previous studies have demonstrated that prenatal caffeine exposure (PCE) induced an intrauterine programming of hypothalamic-pituitary-adrenal axis (HPAA)-associated neuroendocrine metabolism in 3-month-old offspring rats. In this study, we aimed to confirm this programming disorder and high susceptibility to metabolic syndrome (MS) in 10-month-old female PCE offspring with postnatal catch-up growth. We found that PCE female offspring rats showed decreased bodyweight but a higher rate of weight gain after birth...
June 15, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28624500/phoenixin-14-concentrations-are-increased-in-association-with-luteinizing-hormone-and-nesfatin-1-concentrations-in-women-with-polycystic-ovary-syndrome
#18
Kamran Ullah, Tanzil Ur Rahman, Dan-Dan Wu, Xian-Hua Lin, Ye Liu, Xiao-Yan Guo, Peter C K Leung, Run-Ju Zhang, He-Feng Huang, Jian-Zhong Sheng
BACKGROUND: Polycystic ovary syndrome (PCOS) is commonly characterized by obesity, insulin resistance (IR), hyperandrogenemia and hirsutism. Following the reported relationship between phoenixin-14 and gonadotropin production in rat hypothalamic-pituitary-gonadal axis, the present study was designed to investigate the circulating concentrations of phoenixin-14 and their associations with the concentrations of sex hormones including luteinizing hormone (LH), follicular stimulating hormone (FSH), estradiol (E2), progesterone (P4) and total testosterone (TT) in PCOS patients...
August 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28606559/adiponectin-at-physiological-level-glucose-independently-enhances-inhibitory-postsynaptic-current-onto-npy-neurons-in-the-hypothalamic-arcuate-nucleus
#19
Shigetomo Suyama, Wang Lei, Naoto Kubota, Takashi Kadowaki, Toshihiko Yada
Adiponectin regulates glucose and lipid metabolism, acting against atherosclerosis and metabolic syndrome. Accumulating evidences suggest that adiponectin acts on the brain including the arcuate nucleus of hypothalamus (ARC). The ARC contains orexigenic neuropeptide Y (NPY)/agouti related peptide (AgRP) neurons and anorexigenic proopiomelanocortin (POMC) neurons, the first order neurons for feeding regulation. We recently reported that intracerebroventricular injection of adiponectin at low glucose level suppressed food intake, while at elevated glucose level it promoted food intake, exhibiting glucose-dependent reciprocal effects...
March 22, 2017: Neuropeptides
https://www.readbyqxmd.com/read/28598957/childhood-adversity-cortisol-levels-and-psychosis-a-retrospective-investigation
#20
Carlo Faravelli, Giovanni Mansueto, Sara Palmieri, Carolina Lo Sauro, Francesco Rotella, Francesco Pietrini, Giulia Fioravanti
Although it has been proposed that the dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis may act as a possible pathway linking early life stress to psychosis, this relationship has not yet been fully confirmed. This study aimed to investigate the relationship between childhood adversity (CA), cortisol levels, and psychosis. Eighty-five patients with psychosis and 170 control subjects were enrolled in the study. CA was evaluated using the Florence Psychiatric Interview, and Childhood Experience of Care and Abuse Questionnaire...
July 2017: Journal of Nervous and Mental Disease
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