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https://www.readbyqxmd.com/read/28717330/an-experimental-evaluation-of-adaptogenic-potential-of-standardized-epipremnum-aureum-leaf-extract
#1
Sreemoy Kanti Das, Pinaki Sengupta, Mohd Shahimi Mustapha, Md Moklesur Rahman Sarker
BACKGROUND: Stress is a normal part of everyday life but chronic stress can lead to a variety of stress-related illnesses including hypertension, anxiety, and depression. In the present investigation, standardized leaf extract of Epipremnumaureum was evaluated for its anti-stress potential. MATERIALS AND METHODS: For the evaluation of anti-stress activity, groups of mice (n = 6) were subjected to forced swim stress and anoxic stress tolerance test in mice 1h after daily treatment of E...
April 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/28707163/characterization-of-snps-in-the-dopamine-%C3%AE-hydroxylase-gene-providing-new-insights-into-its-structure-function-relationship
#2
Toyanji Joseph Punchaichira, Sanjay Kumar Dey, Anirban Mukhopadhyay, Suman Kundu, B K Thelma
Dopamine-β-hydroxylase (DBH, EC 1.14.17.1), an oxido-reductase that catalyses the conversion of dopamine to norepinephrine, is largely expressed in sympathetic neurons and adrenal medulla. Several regulatory and structural variants in DBH associated with various neuropsychiatric, cardiovascular diseases and a few that may determine enzyme activity have also been identified. Due to paucity of studies on functional characterization of DBH variants, its structure-function relationship is poorly understood. The purpose of the study was to characterize five non-synonymous (ns) variants that were prioritized either based on previous association studies or Sorting Tolerant From Intolerant (SIFT) algorithm...
July 2017: Neurogenetics
https://www.readbyqxmd.com/read/28706188/lack-of-social-support-raises-stress-vulnerability-in-rats-with-a-history-of-ancestral-stress
#3
Jamshid Faraji, Nabiollah Soltanpour, Hamid Lotfi, Reza Moeeini, Ali-Reza Moharreri, Shabnam Roudaki, S Abedin Hosseini, David M Olson, Ali-Akbar Abdollahi, Nasrin Soltanpour, Majid H Mohajerani, Gerlinde A S Metz
Stress is a primary risk factor for psychiatric disorders. However, it is not fully understood why some stressed individuals are more vulnerable to psychiatric disorders than others. Here, we investigated whether multigenerational ancestral stress produces phenotypes that are sensitive to depression-like symptoms in rats. We also examined whether social isolation reveals potentially latent sensitivity to depression-like behaviours. F4 female rats born to a lineage of stressed mothers (F0-F3) received stress in adulthood while housed in pairs or alone...
July 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28700991/strain-differences-and-effects-of-environmental-manipulation-on-astrocytes-glial-fibrillary-acidic-protein-glucocorticoid-receptor-and-microglia-iba1-immunoreactivity-between-wistar-kyoto-and-wistar-females
#4
Guergana R Mileva, Carinna Moyes, Shaezeen Syed, Catherine Bielajew
BACKGROUND: Depression is often associated with an increase in hypothalamic-pituitary-adrenal (HPA) axis reactivity and immune response. To investigate this relationship, we examined the consequences of environmental manipulation on the neural correlates of the HPA axis and immune response in an animal model of depression, the Wistar-Kyoto (WKY) rat. Additionally, female animals are often overlooked in preclinical research because of the hormone fluctuations inherent in the estrous cycle...
July 13, 2017: Neuropsychobiology
https://www.readbyqxmd.com/read/28686079/experimental-manipulation-of-corticosterone-does-not-influence-the-clearance-rate-of-plasma-testosterone-in-birds
#5
Pierre Deviche, Stève Desaivre, Mathieu Giraudeau
In vertebrates, exposure to acute stressors stimulates the secretion of adrenal glucocorticoids such as corticosterone, and in some situations this hormone plays an important role in orchestrating the trade-off that exists between reproduction and self-maintenance. Stressful conditions often lead to a decrease in plasma levels of sex steroids such as testosterone in males, and it has been hypothesized that corticosterone contributes to this decrease. Generally supporting this proposition, glucocorticoids can inhibit the reproductive axis activity at multiple levels, including direct effects on testicular endocrine function...
September 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/28680378/effects-of-cellular-11%C3%AE-hydroxysteroid-dehydrogenase-1-on-lps-induced-inflammatory-responses-in-synovial-cell-line-sw982
#6
Young Sik Cho, Ki Nam Kim, Jung Hyun Shim
11β-hydroxysteroid dehydrogenase 1 (11β-HSD1) catalyzes the conversion of inactive cortisone into active cortisol, which has pleiotropic roles in various biological conditions, such as immunological and metabolic homeostasis. Cortisol is mainly produced in the adrenal gland, but can be locally regenerated in the liver, fat, and muscle. Its diverse actions are primarily mediated by binding to the glucocorticoid receptor. SW982, a human synovial cell line, expresses 11β-HSD type 1, but not type 2, that catalyzes the conversion of cortisone to cortisol...
June 2017: Immune Network
https://www.readbyqxmd.com/read/28666657/body-esteem-as-a-common-factor-of-a-tendency-toward-binge-eating-and-sexual-dissatisfaction-among-women-the-role-of-dissociation-and-stress-response-during-sex
#7
Giovanni Castellini, Carolina Lo Sauro, Valdo Ricca, Alessandra H Rellini
BACKGROUND: Several studies have suggested a relevant overlap between eating disorders and sexual dysfunction involving the emotional component of body image esteem and dissociative experiences. AIM: To evaluate the common maintaining factors of sexual dysfunction and vulnerability to pathologic eating behaviors and their relation to a physiologic stress response. METHODS: In the present cross-sectional study, we evaluated a non-clinical sample of 60 heterosexual women (25-35 years old) for dissociation during sex with a partner, body image disturbance, and tendency toward pathologic eating behaviors...
June 27, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28658440/new-evidences-on-the-regulation-of-sf-1-expression-by-pod1-tcf21-in-adrenocortical-tumor-cells
#8
Monica Malheiros França, Antonio M Lerario, Maria Candida B V Fragoso, Claudimara Ferini Pacicco Lotfi
OBJECTIVES: Transcription Factor 21 represses steroidogenic factor 1, a nuclear receptor required for gonadal development, sex determination and the regulation of adrenogonadal steroidogenesis. The aim of this study was to investigate whether silencing or overexpression of the gene Transcription Factor 21 could modulate the gene and protein expression of steroidogenic factor 1 in adrenocortical tumors. METHODS: We analyzed the gene expression of steroidogenic factor 1 using qPCR after silencing endogenous Transcription Factor 21 in pediatric adrenal adenoma-T7 cells through small interfering RNA...
June 2017: Clinics
https://www.readbyqxmd.com/read/28653857/anti-inflammatory-treatment-for-major-depressive-disorder-implications-for-patients-with-an-elevated-immune-profile-and-non-responders-to-standard-antidepressant-therapy
#9
Paula Kopschina Feltes, Janine Doorduin, Hans C Klein, Luis Eduardo Juárez-Orozco, Rudi Ajo Dierckx, Cristina M Moriguchi-Jeckel, Erik Fj de Vries
Major depressive disorder (MDD) is a prevalent and disabling psychiatric disease with rates of non-responsiveness to antidepressants ranging from 30-50%. Historically, the monoamine depletion hypothesis has dominated the view on the pathophysiology of depression. However, the lack of responsiveness to antidepressants and treatment resistance suggests that additional mechanisms might play a role. Evidence has shown that a subgroup of depressive patients may have an underlying immune deregulation that could explain the lack of therapeutic benefit from antidepressants...
June 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28649672/oxytocin-and-stress-related-disorders-neurobiological-mechanisms-and-treatment-opportunities
#10
Lauren M Sippel, Casey E Allington, Robert H Pietrzak, Ilan Harpaz-Rotem, Linda C Mayes, Miranda Olff
Novel pharmacotherapies that improve outcomes for individuals with stress-related psychiatric disorders are needed. The neurohormone oxytocin (OT) is a promising candidate given its influence on the social-emotional brain. In this review, we present an overview of evidence supporting OT's utility for treating major depressive disorder and posttraumatic stress disorder. We first discuss endogenous OT, which research suggests is not yet a reliable biomarker of stress-related disorders. Second, we review effects of intranasal (IN) OT on processes relevant to stress-related disorders in healthy populations (anhedonia, reward processing, psychosocial stress reactivity, fear/anxiety, and social behavior) and their neurobiological mechanisms (e...
February 2017: Chronic stress
https://www.readbyqxmd.com/read/28647413/omega-6-fatty-acids-opposing-associations-with-risk-the-ludwigshafen-risk-and-cardiovascular-health-study
#11
Graciela E Delgado, Winfried März, Stefan Lorkowski, Clemens von Schacky, Marcus E Kleber
BACKGROUND: Omega-6 polyunsaturated fatty acids (omega-6 PUFA) are recommended in European cardiovascular prevention guidelines. However, individual fatty acids have distinct biological functions, and there have been conflicting reports about the association of omega-6 PUFA with cardiovascular risk. OBJECTIVE: The aim of our study was to investigate the association of individual omega-6 fatty acids with mortality in a cohort of patients referred for coronary angiography...
June 1, 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28636887/temporal-dynamics-of-the-hpa-axis-linked-to-exploratory-behavior-in-a-wild-european-songbird-parus-major
#12
Alexander T Baugh, Sarah C Davidson, Michaela Hau, Kees van Oers
Variation in the reactivity of the endocrine stress axis is thought to underlie aspects of persistent individual differences in behavior (i.e. animal personality). Previous studies, however, have focused largely on estimating baseline or peak levels of glucocorticoids (CORT), often in captive animals. In contrast, the temporal dynamics of the HPA axis-how quickly it turns on and off, for example-may better indicate how an individual copes with stressors. Moreover, these HPA components might be correlated, thereby representing endocrine suites...
June 19, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28613048/is-the-second-to-fourth-digit-ratio-2d-4d-a-biomarker-of-sex-steroids-activity
#13
Vincenzo de Sanctis, Ashraf T Soliman, Heba Elsedfy, Nada Soliman, Rania Elalaily, Salvatore Di Maio
The second-to-fourth digit ratio (2D:4D) has been used as an indirect method to investigate the putative effects of prenatal exposure to androgens, and has been reported to be smaller in males than in females. This gender difference in digit length ratios has been linked with the in utero balance of androgens to oestrogen. This sexual dimorphism in 2D:4D ratios is apparent by 2 years of age and seems to be established early in life, possibly by the 14th week of gestation. Digits in females attain their maximum length at about 2...
June 2017: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28577879/developmental-psychoneuroendocrine-and-psychoneuroimmune-pathways-from-childhood-adversity-to-disease
#14
REVIEW
Kate Ryan Kuhlman, Jessica J Chiang, Sarah Horn, Julienne E Bower
Childhood adversity has been repeatedly and robustly linked to physical and mental illness across the lifespan. Yet, the biological pathways through which this occurs remain unclear. Functioning of the inflammatory arm of the immune system and the hypothalamic-pituitary-adrenal (HPA)-axis are both hypothesized pathways through which childhood adversity leads to disease. This review provides a novel developmental framework for examining the role of adversity type and timing in inflammatory and HPA-axis functioning...
May 31, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28569567/nomograms-of-the-whole-foetal-adrenal-gland-and-foetal-zone-at-gestational-age-of-16-24-weeks
#15
Mattawan Jamigorn, Vorapong Phupong
The aim of this study was to create nomograms of the whole foetal adrenal gland and the foetal zone at 16-24 weeks of gestation in the Thai population, as well as to evaluate the relationships between the gestational age and the whole foetal adrenal gland and the foetal zone. Transabdominal measurement of the whole foetal adrenal gland and adrenal foetal zone were added to the routine biometric measurements at 16-24 weeks of gestation of singleton low-risk pregnancies. A total of 189 measurements were used for analysis...
June 1, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28567298/recurrent-insulinoma-in-a-10-year-old-boy-with-down-s-syndrome
#16
Noman Ahmad, Abdulmonem Mohammed Almutawa, Mohamed Ziyad Abubacker, Hossam Ahmed Elzeftawy, Osama Abdullah Bawazir
An insulinoma is a rare tumour with an incidence of four cases per million per year in adults. The incidence in children is not established. There is limited literature available in children with insulinoma, and only one case is reported in association with Down's syndrome in adults. Insulinoma diagnosis is frequently missed in adults as well as in children. The Whipple triad is the most striking feature although it has limited application in young children. Hypoglycaemia with elevated insulin, C-peptide and absent ketones is highly suggestive of hyperinsulinism...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28567296/thyrotoxicosis-leading-to-adrenal-crises-reveals-primary-bilateral-adrenal-lymphoma
#17
Catarina Roque, Ricardo Fonseca, Carlos Tavares Bello, Carlos Vasconcelos, António Galzerano, Sância Ramos
Primary adrenal lymphoma is a rare malignancy. It frequently presents bilaterally and with symptoms of adrenal insufficiency. Amiodarone may induce secondary organ dysfunction, and thyrotoxicosis develops in 15% of cases. The symptomatology of both conditions is nonspecific, especially in the elderly, and a high suspicion index is necessary for appropriate diagnosis. A 78-year-old female presented to the emergency department with confusion, nausea and vomiting. She had recently been to the emergency department with urinary tract infection, vomiting and acute hypochloremic hyponatremia...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28545898/risk-averse-personalities-have-a-systemically-potentiated-neuroendocrine-stress-axis-a-multilevel-experiment-in-parus-major
#18
Alexander T Baugh, Rebecca A Senft, Marian Firke, Abigail Lauder, Julia Schroeder, Simone L Meddle, Kees van Oers, Michaela Hau
Hormonal pleiotropy-the simultaneous influence of a single hormone on multiple traits-has been hypothesized as an important mechanism underlying personality, and circulating glucocorticoids are central to this idea. A major gap in our understanding is the neural basis for this link. Here we examine the stability and structure of behavioral, endocrine and neuroendocrine traits in a population of songbirds (Parus major). Upon identifying stable and covarying behavioral and endocrine traits, we test the hypothesis that risk-averse personalities exhibit a neuroendocrine stress axis that is systemically potentiated-characterized by stronger glucocorticoid reactivity and weaker negative feedback...
May 26, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28528143/intergenerational-accumulation-of-impairments-in-maternal-behavior-following-postnatal-social-stress
#19
B C Nephew, L M Carini, S Sallah, C Cotino, R A S Alyamani, F Pittet, S Bradburn, C Murgatroyd
Early adversity such as depressed maternal care can have long-term physiological and behavioral effects on offspring and future generations. Exposure to chronic social stress (CSS), an ethologically model of postpartum depression and anxiety, during lactation impairs maternal care and exerts similar effects on the F1 dam offspring of the stressed F0 dams. These changes associate with increased corticosterone and neuroendocrine alterations. CSS F2 offspring further display decreased social behavior as juveniles and adults and decreased basal levels of corticosterone...
May 13, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28526030/prenatal-bisphenol-a-exposure-and-dysregulation-of-infant-hypothalamic-pituitary-adrenal-axis-function-findings-from-the-apron-cohort-study
#20
Gerald F Giesbrecht, Maede Ejaredar, Jiaying Liu, Jenna Thomas, Nicole Letourneau, Tavis Campbell, Jonathan W Martin, Deborah Dewey
BACKGROUND: Animal models show that prenatal bisphenol A (BPA) exposure leads to sexually dimorphic disruption of the neuroendocrine system in offspring, including the hypothalamic-pituitary-adrenal (HPA) neuroendocrine system, but human data are lacking. In humans, prenatal BPA exposure is associated with sex-specific behavioural problems in children, and HPA axis dysregulation may be a biological mechanism. The objective of the current study was to examine sex differences in associations between prenatal maternal urinary BPA concentration and HPA axis function in 3 month old infants...
May 19, 2017: Environmental Health: a Global Access Science Source
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