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https://www.readbyqxmd.com/read/29151256/melatonin-and-metformin-diminish-oxidative-stress-in-heart-tissue-in-a-rat-model-of-high-fat-diet-and-mammary-carcinogenesis
#1
Natalia Kurhaluk, Bianka Bojkova, Marek Radkowski, Olga V Zaitseva, Svitlana Kyriienko, Urszula Demkow, Pawel J Winklewski
The aim of this study was to determine the effects of long-term administration of the oral antidiabetic metformin or the pineal hormone melatonin, and a combination thereof, in preventing oxidative stress in the heart tissue of female Sprague-Dawley rats with mammary tumors induced by N-methyl-N-nitrosourea (NMU) (50 mg/kg) given on the 42nd postnatal day. Metformin and melatonin were administered 12 days before and 16 weeks after the carcinogen. During the experiment, all animals were fed a high fat diet (10% total fat, 2...
November 19, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29151248/adiponectin-and-vitamin-d-binding-protein-are-independently-associated-at-birth-in-both-mothers-and-neonates
#2
Spyridon N Karras, Stergios Α Polyzos, Danforth A Newton, Carol L Wagner, Bruce W Hollis, Jody van den Ouweland, Erdinc Dursun, Duygu Gezen-Ak, Kalliopi Kotsa, Cedric Annweiler, Declan P Naughton
CONTEXT: Adult body fat is associated with birth anthropometry, suggesting a role for metabolic regulators including vitamin D and the adipokines-adiponectin and irisin-which have been reported to interact but, as yet, data remain controversial. OBJECTIVE: To study (i) the relationship between vitamin D, its binding protein (VDBP) and the adipokines, adiponectin, and irisin in mothers and neonates at birth and (ii) their effects on neonate anthropometric outcomes...
November 18, 2017: Endocrine
https://www.readbyqxmd.com/read/29151238/predictability-of-hypoadrenalism-occurrence-and-duration-after-adrenalectomy-for-acth-independent-hypercortisolism
#3
V Morelli, L Minelli, C Eller-Vainicher, S Palmieri, E Cairoli, A Spada, M Arosio, I Chiodini
OBJECTIVE: To evaluate if the parameters of hypothalamic-pituitary-adrenal (HPA) axis activity could predict the occurrence and duration of post-surgical hypocortisolism (PSH) in patients with Cushing's syndrome (CS) and with adrenal incidentaloma (AI). METHODS: We studied 80 patients (54 females, age 53.3 ± 11 years), who underwent adrenalectomy for CS (17 patients) or for AI (53 patients). Before surgery, we measured adrenocorticotroph hormone (ACTH), urinary free cortisol (UFC) and serum cortisol after 1 mg dexamethasone suppression test (1 mg-DST) levels...
November 18, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29151229/effects-of-female-sex-steroids-administration-on-pathophysiologic-mechanisms-in-traumatic-brain-injury
#4
REVIEW
Mohammad Khaksari, Zahra Soltani, Nader Shahrokhi
Secondary brain damage following initial brain damage in traumatic brain injury (TBI) is a major cause of adverse outcomes. There are many gaps in TBI research and a lack of therapy to limit debilitating outcomes in TBI or enhance the neurogenesis, despite pre-clinical and clinical research performed in TBI. Females show harmful outcomes against brain damage including TBI less than males, independent of different TBI occurrence. A significant reduction in secondary brain damage and improvement in neurologic outcome post-TBI has been reported following the use of progesterone and estrogen in many experimental studies...
November 19, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/29151224/the-potential-role-of-the-osteopontin-osteocalcin-osteoprotegerin-triad-in-the-pathogenesis-of-prediabetes-in-humans
#5
Giuseppe Daniele, Deidre Winnier, Andrea Mari, Jan Bruder, Marcel Fourcaudot, Zuo Pengou, Andrea Hansis-Diarte, Christopher Jenkinson, Devjit Tripathy, Franco Folli
AIMS: To examine the relationship between hormones involved in bone remodeling and glucose metabolism alterations in prediabetes. METHODS: Individuals (n = 43) with NGT (BMI = 31.1 ± 1.1 kg/m(2)) and individuals (n = 79) with impaired glucose regulation (IGR) (BMI = 31.9 ± 1.2 kg/m(2)) including subjects with IFG, IGT, and IFG-IGT underwent OGTT and DXA. Osteopontin (OPN), osteocalcin (OCN), osteoprotegerin (OPG), and PTH levels were measured at fasting...
November 18, 2017: Acta Diabetologica
https://www.readbyqxmd.com/read/29151191/silica-nanoparticle-exposure-inducing-granulosa-cell-apoptosis-and-follicular-atresia-in-female-balb-c-mice
#6
Jianhui Liu, Man Yang, Li Jing, Lihua Ren, Jialiu Wei, Jin Zhang, Feng Zhang, Junchao Duan, Xianqing Zhou, Zhiwei Sun
Given that the effects of ultrafine fractions (< 0.1 μm) on reproductive diseases are gaining attention, this study aimed to explore the influence of silica nanoparticle (SiNP)-induced female reproductive dysfunction. In this study, 80 female mice were randomly divided into four groups including a control group and three concentrations of SiNP groups (7, 21, 35 mg/kg). Mice were exposed to the vehicle control and silica nanoparticles by tracheal perfusion every 3 days a total of five times in 15 days...
November 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29151156/deep-rnaseq-indicates-protective-mechanisms-of-cold-tolerant-indica-rice-plants-during-early-vegetative-stage
#7
Raul Antonio Sperotto, Artur Teixeira de Araújo Junior, Janete Mariza Adamski, Denise Cargnelutti, Felipe Klein Ricachenevsky, Ben-Hur Neves de Oliveira, Renata Pereira da Cruz, Rinaldo Pires Dos Santos, Leila Picolli da Silva, Janette Palma Fett
Cold-tolerance in rice may be related to increased cellulose deposition in the cell wall, membrane fatty acids unsaturation and differential expression of several newly identified genes. Low temperature exposure during early vegetative stages limits rice plant's growth and development. Most genes previously related to cold tolerance in rice are from the japonica subspecies. To help clarify the mechanisms that regulate cold tolerance in young indica rice plants, comparative transcriptome analysis of 6 h cold-treated (10 °C) leaves from two genotypes, cold-tolerant (CT) and cold-sensitive (CS), was performed...
November 18, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/29151155/intraurethral-injection-with-lps-an-effective-experimental-model-of-prostatic-inflammation
#8
Fabiana Oliveira Dos Santos Gomes, Amanda Costa Oliveira, Edlene Lima Ribeiro, Bruna Santos da Silva, Laise Aline Martins Dos Santos, Ingrid Tavares de Lima, Amanda Karolina Soares E Silva, Shyrlene Meiry da Rocha Araújo, Terezinha Gonçalves, Mario Ribeiro de Melo-Junior, Christina Alves Peixoto
OBJECTIVE: Chronic inflammation has been recognized as having a prominent role pathogenesis of benign prostatic hyperplasia (BPH) and cancer. It is believed that chronic inflammation induces prostatic fibromuscular growth. This correlation has been clearly illustrated by both in vivo and in vitro studies; however, current experimental models of BPH require complex surgery or hormonal treatment. Therefore, the aim of the present study was to propose a new murine model of BPH/prostatitis induced by intraurethral injection of LPS...
November 18, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/29151143/salinity-reduces-2-4-d-efficacy-in-echinochloa-crusgalli-by-affecting-redox-balance-nutrient-acquisition-and-hormonal-regulation
#9
Faisal Islam, Yuan Xie, Muhammad A Farooq, Jian Wang, Chong Yang, Rafaqat A Gill, Jinwen Zhu, Weijun Zhou
Distinct salinity levels have been reported to enhance plants tolerance to different types of stresses. The aim of this research is to assess the interaction of saline stress and the use of 2,4-D as a means of controlling the growth of Echinochloa crusgalli. The resultant effect of such interaction is vital for a sustainable approach of weed management and food production. The results showed that 2,4-D alone treatment reduces the chlorophyll contents, photosynthetic capacity, enhanced MDA, electrolyte leakage, and ROS production (H2O2, O2(·-)) and inhibited the activities of ROS scavenging enzymes...
November 18, 2017: Protoplasma
https://www.readbyqxmd.com/read/29151102/the-effect-of-genistein-supplementation-on-vitamin-d-levels-and-bone-turnover-markers-during-the-summer-in-healthy-postmenopausal-women-role-of-genotypes-of-isoflavone-metabolism
#10
María Pérez-Alonso, Laisa-Socorro Briongos, Marta Ruiz-Mambrilla, Eladio A Velasco, Lidia Linares, Luis Cuellar, José-Manuel Olmos, Daniel De Luis, Antonio Dueñas-Laita, José-Luis Pérez-Castrillón
AIMS: The objective of this study was to determine whether vitamin D and genistein supplementation had an additive beneficial effect on levels of vitamin D and bone markers and whether this effect was mediated by genes regulating isoflavone metabolism. MATERIALS AND METHODS: We carried out a prospective study in postmenopausal women randomized to calcium and vitamin D supplementation or calcium, vitamin D, and genistein supplementation. Vitamin D, parathyroid hormone (PTH), cross-linked C-telopeptide (CTX), and procollagen 1 N-terminal (P1NP) were determined by electrochemiluminescence...
November 18, 2017: Journal of Nutrigenetics and Nutrigenomics
https://www.readbyqxmd.com/read/29151078/therapeutic-effect-of-exogenous-ghrelin-in-the-healing-of-gingival-ulcers-is-mediated-by-the-release-of-endogenous-growth-hormone-and-insulin-like-growth-factor-1
#11
J Cieszkowski, Z Warzecha, P Ceranowicz, D Ceranowicz, B Kusnierz-Cabala, M Pedziwiatr, M Dembinski, T Ambrozy, T Kaczmarzyk, M Pihut, M Wieckiewicz, R Olszanecki, A Dembinski
Ghrelin, an acylated 28-amino acid polypeptide, was primary isolated from the stomach, and the stomach is a main source of circulating ghrelin. Ghrelin strongly and dose-dependently stimulates release of growth hormone from the anterior pituitary, as well as increases food intake and fat deposition. Previous studies showed that ghrelin exhibits protective and therapeutic effect in different parts of the gastrointestinal system, including the oral cavity. The aim of present study was to examine the role of growth hormone and insulin-like growth factor-1 (IGF-1) in the healing of gingival ulcers...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151067/the-x-a-like-cell-revisited-spotlight-on-the-peripheral-effects-of-nucb2-nesfatin-1-and-ghrelin
#12
E Weibert, A Stengel
The gastric X/A-like cell was long thought to be restricted to the production of acyl ghrelin. However, the subsequent years witnessed the discovery of other peptide products derived from this cell, namely desacyl ghrelin, obestatin and nesfatin-1. While the role of obestatin remains highly questionable and is very critically discussed in the literature, besides acyl ghrelin also desacyl ghrelin and nesfatin-1 have been implicated in the regulation of food intake. As observed for several other peptide hormones before, ghrelin and nesfatin-1 are not restricted to one function but rather exert pleiotropic actions including effects on gastrointestinal motility, thermogenesis, lipid and glucose homeostasis, stress mediation, cardiovascular as well as reproductive functions...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151001/intravenous-fluid-therapy-for-hospitalized-and-critically-ill-children-rationale-available-drugs-and-possible-side-effects
#13
Thomas Langer, Rosamaria Limuti, Concezione Tommasino, Niels van Regenmortel, Els L I M Duval, Pietro Caironi, Manu L N G Malbrain, Antonio Pesenti
Human beings are constituted mainly of water. In particular, children's total body water might reach 75-80% of their body weight, compared to 60-70% in adults. It is therefore not surprising, that children, especially hospitalized newborns and infants, are markedly prone to water and electrolyte imbalances. Parenteral fluid therapy is a cornerstone of medical treatment and is thus of exceptional relevance in this patient population. It is crucial to appreciate the fact that intravenous fluids are drugs with very different characteristics, different indications, contraindications and relevant side effects...
November 18, 2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/29150934/the-current-status-and-perspectives-regarding-the-clinical-implication-of-intracellular-calcium-in-breast-cancer
#14
REVIEW
Amir Tajbakhsh, Alireza Pasdar, Mehdi Rezaee, Mostafa Fazeli, Saman Soleimanpour, Seyed Mahdi Hassanian, Zahra FarshchiyanYazdi, Tayebe Younesi Rad, Gordon A Ferns, Amir Avan
Calcium ions (Ca(2+) ) act as second messengers in intracellular signaling. Ca(2+) pumps, channels, sensors, and calcium binding proteins, regulate the concentrations of intracellular Ca(2+) as a key regulator of important cellular processes such as gene expression, proliferation, differentiation, DNA repair, apoptosis, metastasis, and hormone secretion. Intracellular Ca(2+) also influences the functions of several organelles, that include: the endoplasmic reticulum, mitochondria, the Golgi, and cell membrane both in normal and breast cancer cells...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150898/a-model-to-characterize-psychopathological-features-in-adults-with-prader-willi-syndrome
#15
Denise Thuilleaux, Virginie Laurier, Pierre Copet, Julie Tricot, Geneviève Demeer, Fabien Mourre, Maithé Tauber, Joseba Jauregi
High prevalence of behavioral and psychiatric disorders in adults with Prader-Willi Syndrome (PWS) has been reported in last few years. However, data are confusing and often contradictory. In this article, we propose a model to achieve a better understanding of the psychopathological features in adults with PWS. The study is based on clinical observations of 150 adult inpatients, males and females. Non-parametric statistics were performed to analyse the association of psychopathological profiles with genotype, gender and age...
November 17, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29150712/unacylated-ghrelin-and-obestatin-promising-biomarkers-of-protein-energy-wasting-in-children-with-chronic-kidney-disease
#16
Alice Monzani, Michela Perrone, Flavia Prodam, Stefania Moia, Giulia Genoni, Sara Testa, Fabio Paglialonga, Anna Rapa, Gianni Bona, Giovanni Montini, Alberto Edefonti
BACKGROUND: Impairment in orexigenic/anorexigenic hormone balance may be key in the pathogenesis of protein energy wasting in children with chronic kidney disease (CKD). Measurement of ghrelin and obestatin concentrations in children with CKD would help assess the potential contribution of these hormones to uremic protein energy wasting. METHODS: This was a cross-sectional case-control study. Acylated and unacylated ghrelin and obestatin were measured in 42 children on conservative treatment (CT), 20 children on hemodialysis, 48 pediatric renal transplant (RTx) recipients and 43 controls (CTR) (mean age 11...
November 18, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/29150589/change-in-hydration-indices-associated-with-an-increase-in-total-water-intake-of-more-than-0-5%C3%A2-l-day-sustained-over-4%C3%A2-weeks-in-healthy-young-men-with-initial-total-water-intake-below-2%C3%A2-l-day
#17
Jodi D Stookey, Janice Hamer, David W Killilea
This secondary data analysis addressed gaps in knowledge about effects of chronic water intake. Longitudinal data from the Adapt Study were used to describe effects of prescribing a sustained increase in water intake relative to baseline, for 4 weeks, on multiple indices of total body water (TBW) flux, regulation, distribution, and volume in five healthy, free-living, young men, with mean total water intake initially below 2 L/day. Indices were measured weekly. Within-person fixed effect models tested for significant changes in indices over time and associations between changes in indices...
November 2017: Physiological Reports
https://www.readbyqxmd.com/read/29150547/the-tomato-della-protein-procera-acts-in-guard-cells-to-promote-stomatal-closure
#18
Ido Nir, Hagai Shohat, Irina Panizel, Neil E Olszewski, Asaph Aharoni, David Weiss
Plants employ stomatal closure and reduced growth to avoid water deficiency damage. Reduced levels of the growth-promoting hormone gibberellin (GA) lead to increased tolerance to water deficit, but the underlying mechanism is unknown. Here, we show that the tomato (Solanum lycopersicum) DELLA protein PROCERA (PRO), a negative regulator of GA signaling, acts in guard cells to promote stomatal closure and reduce water loss in response to water deficiency by increasing abscisic acid (ABA) sensitivity. The loss-of-function pro mutant exhibited increased stomatal conductance and rapid wilting under water-deficit stress...
November 17, 2017: Plant Cell
https://www.readbyqxmd.com/read/29150434/campaigners-vow-to-fight-on-after-report-finds-no-link-between-hormone-test-and-birth-defects
#19
Anne Gulland
No abstract text is available yet for this article.
November 17, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29150404/stress-hormones-concentrations-in-the-normal-microenvironment-predict-risk-for-chemically-induced-cancer-in-rats
#20
Vitor Bonetti Valente, Flávia Alves Verza, Felipe Yudi Kabeya Lopes, Joana Zafalon Ferreira, Paulo Sérgio Patto Dos Santos, Maria Lúcia Marçal Mazza Sundefeld, Éder Ricardo Biasoli, Glauco Issamu Miyahara, Ana Maria Pires Soubhia, Mariza de Andrade, Sandra Helena Penha de Oliveira, Daniel Galera Bernabé
Evidence show that stress hormones can influence cancer progression, but its role in carcinogenesis is poorly understood. In this study, we used a new method based on oral carcinogenesis model in rats to test the hypothesis that physiological levels of stress hormones in the normal tissue microenvironment would have significant predictive value for chemically induced cancer occurrence. Male Wistar rats were submitted to a tongue biopsy for measuring not-stress induced levels of norepinephrine, corticosterone, adrenocorticotropic hormone (ACTH) and brain-derived neurotrophic factor (BDNF) in the tissue before carcinogenic induction...
November 8, 2017: Psychoneuroendocrinology
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