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https://www.readbyqxmd.com/read/28099900/skeletal-muscle-aging-influence-of-oxidative-stress-and-physical-exercise
#1
REVIEW
Mariana Janini Gomes, Paula Felippe Martinez, Luana Urbano Pagan, Ricardo Luiz Damatto, Marcelo Diacardia Mariano Cezar, Aline Regina Ruiz Lima, Katashi Okoshi, Marina Politi Okoshi
Skeletal muscle abnormalities are responsible for significant disability in the elderly. Sarcopenia is the main alteration occurring during senescence and a key public health issue as it predicts frailty, poor quality of life, and mortality. Several factors such as reduced physical activity, hormonal changes, insulin resistance, genetic susceptibility, appetite loss, and nutritional deficiencies are involved in the physiopathology of muscle changes. Sarcopenia is characterized by structural, biochemical, molecular and functional muscle changes...
January 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28098892/metabolomics-study-on-primary-dysmenorrhea-patients-during-the-luteal-regression-stage-based-on-ultra-performance-liquid-chromatography-coupled-with-quadrupole%C3%A2-time%C3%A2-of%C3%A2-flight-mass-spectrometry
#2
Ling Fang, Caiyun Gu, Xinyu Liu, Jiabin Xie, Zhiguo Hou, Meng Tian, Jia Yin, Aizhu Li, Yubo Li
Primary dysmenorrhea (PD) is a common gynecological disorder which, while not life‑threatening, severely affects the quality of life of women. Most patients with PD suffer ovarian hormone imbalances caused by uterine contraction, which results in dysmenorrhea. PD patients may also suffer from increases in estrogen levels caused by increased levels of prostaglandin synthesis and release during luteal regression and early menstruation. Although PD pathogenesis has been previously reported on, these studies only examined the menstrual period and neglected the importance of the luteal regression stage...
January 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28089702/the-visible-burrow-system-a-view-from-across-the-hall
#3
REVIEW
James P Herman, Kellie L Tamashiro
The visible burrow system (VBS) is an ethologically relevant social stress model that creates a distinct dominance hierarchy in rats. Randall Sakai's laboratory performed an impressive series of studies documenting the very different impact of VBS exposure on the brain and behavior of dominants (DOM) and subordinates (SUBs). Hierarchy formation causes pronounced changes in metabolism in SUBs relative to both DOMs and unstressed controls, resulting in marked weight loss and metabolic imbalance. Stress testing revealed multiple phenotypes in the VBS, including DOMs, stress-responsive SUBs and stress-non-responsive SUBs...
January 12, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28089368/the-transition-from-pediatric-to-adult-care-for-youth-with-epilepsy-basic-biological-sociological-and-psychological-issues
#4
REVIEW
Peter Camfield, Carol Camfield, Kanetee Busiah, David Cohen, Alison Pack, Rima Nabbout
Transition from pediatric to adult health care for adolescents with epilepsy is challenging for the patient, family, and health care workers. This paper is the first of three that summarize the main findings from the 2nd Symposium on Transition in Epilepsies, held in Paris from June 14-25, 2016. In this paper we describe five basic themes that have an important effect on transition. First, there are important brain changes in adolescence that leave an imbalance between risk taking and pleasure seeking behaviors and frontal executive function compared with adults...
January 12, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28073356/gut-microbiota-disturbance-during-helminth-infection-can-it-affect-cognition-and-behaviour-of-children
#5
Vanina Guernier, Bradley Brennan, Laith Yakob, Gabriel Milinovich, Archie C A Clements, Ricardo J Soares Magalhaes
BACKGROUND: Bidirectional signalling between the brain and the gastrointestinal tract is regulated at neural, hormonal, and immunological levels. Recent studies have shown that helminth infections can alter the normal gut microbiota. Studies have also shown that the gut microbiota is instrumental in the normal development, maturation and function of the brain. The pathophysiological pathways by which helminth infections contribute to altered cognitive function remain poorly understood...
January 10, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28042237/gut-microbiome-surgical-complications-and-probiotics
#6
REVIEW
George Stavrou, Katerina Kotzampassi
The trigger for infectious complications in patients following major abdominal operations is classically attributed to endogenous enteral bacterial translocation, due to the critical condition of the gut. Today, extensive gut microbiome analysis has enabled us to understand that almost all "evidence-based" surgical or medical intervention (antibiotics, bowel preparation, opioids, deprivation of nutrition), in addition to stress-released hormones, could affect the relative abundance and diversity of the enteral microbiome, allowing harmful bacteria to proliferate in the place of depressed beneficial species...
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/28039596/optic-neuritis-secondary-to-antiandrogen-therapy
#7
REVIEW
Á Ní Mhéalóid, G Cunniffe
BACKGROUND: Optic neuropathy is a disorder characterised by dysfunction or destruction of the optic nerve tissues. Acquired causes include interruption in the blood supply, nutritional deficiency, compression by a tumour or aneurysm, trauma, and toxic types (Ambizas and Patel In US Pharm 36(4):HS2-HS6, 1). Drug-induced optic neuropathy is of the toxic type and can be defined as a clinical syndrome characterised by papillomacular bundle damage, central, or cecocentral scotoma, and reduced colour vision (Ambizas and Patel In US Pharm 36(4):HS2-HS6, 2011; Sharma and Sharma In Indian J Ophthalmol 59(2):137-141, 2)...
December 30, 2016: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/27999654/a-primer-on-the-use-of-mouse-models-for-identifying-direct-sex-chromosome-effects-that-cause-sex-differences-in-non-gonadal-tissues
#8
REVIEW
Paul S Burgoyne, Arthur P Arnold
In animals with heteromorphic sex chromosomes, all sex differences originate from the sex chromosomes, which are the only factors that are consistently different in male and female zygotes. In mammals, the imbalance in Y gene expression, specifically the presence vs. absence of Sry, initiates the differentiation of testes in males, setting up lifelong sex differences in the level of gonadal hormones, which in turn cause many sex differences in the phenotype of non-gonadal tissues. The inherent imbalance in the expression of X and Y genes, or in the epigenetic impact of X and Y chromosomes, also has the potential to contribute directly to the sexual differentiation of non-gonadal cells...
2016: Biology of Sex Differences
https://www.readbyqxmd.com/read/27993358/involvement-of-matrix-metalloproteinases-and-their-inhibitors-in-bovine-cystic-ovarian-disease
#9
M B Peralta, M E Baravalle, E M Belotti, A F Stassi, N R Salvetti, H H Ortega, F Rey, M M L Velázquez
The most important regulators of tissue remodelling during ovarian follicular growth, development, ovulation and atresia are gonadotropins, steroid hormones, growth factors and different proteolytic enzymes. Matrix metalloproteinases (MMPs) such as collagenase or gelatinase (i.e. MMP-1, -8, -2 and -9) and associated tissue inhibitors of metalloproteinases (TIMP-1, -2, -3 and -4) control connective tissue remodelling during follicular rupture. In this study, we hypothesized that an imbalance in the MMP-TIMP system may be an intra-ovarian component that contributes to the pathogenesis of cystic ovarian disease (COD) in cows...
December 16, 2016: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/27974911/the-etiopathogenesis-of-uterine-fibromatosis
#10
EDITORIAL
L Manta, N Suciu, O Toader, R M Purcărea, A Constantin, F Popa
Uterine fibroids or uterine leiomyomas are the most common benign tumors of the uterus among women of fertile age, while the etiology is still incompletely elucidated. The occurrence and development of the fibromatosis may be related to certain risk factors and genic mechanisms, although the exact causes are not yet fully known. The development of uterine fibroids is correlated not only with the metabolism and with the level of female sexual hormones, estrogen, and progesterone, but also with the number of these hormone receptors expressed on the surface of the myometrium...
January 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27973258/relationship-between-perception-of-sex-hormones-imbalance-depression-and-cognitive-function-among-female-students-in-international-medical-university-a-cross-sectional-study
#11
A Tumkur, R Venkataraman, P Mittal, L S Koay, S E Chiam, S P Choong, S Y Chow
No abstract text is available yet for this article.
November 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/27967227/sodium-and-water-imbalance-after-sellar-suprasellar-and-parasellar-surgery
#12
Zareen Kiran, Aisha Sheikh, Sehrish Nizar Ali Momin, Isra Majeed, Safia Awan, Owais Rashid, Najmul Islam
OBJECTIVES: To report the frequency of sodium and water disturbances (SWD) in patients undergoing sellar, suprasellar and parasellar surgery (SSPS). METHODS: We conducted a cross-sectional retrospective study on 115 patients in the Aga Khan University Hospital after ethical approval. Patients were 16 years old or older undergoing pituitary or sellar surgeries. We collected data on basic sociodemographic characteristics and clinical indication for surgery. We noted laboratory values for serum electrolytes, plasma and urine osmolality, urine sodium and 24-hour fluid balance from immediate postoperative day till discharge and follow up...
December 14, 2016: Endocrine Practice
https://www.readbyqxmd.com/read/27941090/modulation-of-host-plant-immunity-by-tobamovirus-proteins
#13
REVIEW
G Conti, M C Rodriguez, A L Venturuzzi, S Asurmendi
BACKGROUND: To establish successful infection, plant viruses produce profound alterations of host physiology, disturbing unrelated endogenous processes and contributing to the development of disease. In tobamoviruses, emerging evidence suggests that viral-encoded proteins display a great variety of functions beyond the canonical roles required for virus structure and replication. Among these, their modulation of host immunity appears to be relevant in infection progression. SCOPE: In this review, some recently described effects on host plant physiology of Tobacco mosaic virus (TMV)-encoded proteins, namely replicase, movement protein (MP) and coat protein (CP), are summarized...
December 10, 2016: Annals of Botany
https://www.readbyqxmd.com/read/27939373/molecular-classification-of-hepatocellular-adenoma-associates-with-risk-factors-bleeding-and-malignant-transformation
#14
Jean Charles Nault, Gabrielle Couchy, Charles Balabaud, Guillaume Morcrette, Stefano Caruso, Jean-Frederic Blanc, Yannick Bacq, Julien Calderaro, Valérie Paradis, Jeanne Ramos, Jean-Yves Scoazec, Viviane Gnemmi, Nathalie Sturm, Catherine Guettier, Monique Fabre, Eric Savier, Laurence Chiche, Philippe Labrune, Janick Selves, Dominique Wendum, Camilla Pilati, Alexis Laurent, Anne De Muret, Brigitte Le Bail, Sandra Rebouissou, Sandrine Imbeaud, Paulette Bioulac-Sage, Eric Letouzé, Jessica Zucman-Rossi
BACKGROUND & AIMS: Hepatocellular adenomas (HCA) are benign liver tumors that can be assigned to molecular subtypes based on inactivating mutations in HNF1A, activating mutations in β-catenin, or activation of inflammatory signaling pathways. We aimed to update the classification system for HCA and associate the subtypes with disease risk factors and complications. METHODS: We analyzed expression levels of 20 genes and sequenced exon regions of 8 genes (HNF1A, IL6ST, CTNNB1, FRK, STAT3, GNAS, JAK1, and TERT) in 607 samples of 533 HCAs from 411 patients, collected from 28 centers mainly in France from 2000 and 2014...
December 7, 2016: Gastroenterology
https://www.readbyqxmd.com/read/27928454/the-role-of-oral-sodium-bicarbonate-supplementation-in-maintaining-acid-base-balance-and-its-influence-on-the-cardiovascular-system-in-chronic-hemodialysis-patients-results-of-a-prospective-study
#15
Voiculeț C, Zară O, Bogeanu C, Văcăroiu I, Aron G
Background: Major acid-base variations during dialysis and the imbalances in serum calcium levels intensified by them play a role in cardiovascular damage of hemodialysis patients. Early vascular walls modifications can be objectified by determining the pulse wave velocity (PWV) - a marker of vascular stiffness that is associated with increased risk of cardiovascular events. Material and methods: This was a prospective study conducted on 63 chronic hemodialysis patients with diuresis above 500 mL/ 24 hours and predialysis blood pressure below 160 mmHg (treatment controlled) randomized in two groups for 12 months - the study group receiving interdialitic oral sodium bicarbonate doses and control group, without oral sodium bicarbonate supplementation, but receiving higher bicarbonate prescriptions in dialysis...
October 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27925712/quantitative-assessment-of-nutrition-in-patients-with-polycystic-ovary-syndrome-pcos
#16
Małgorzata Szczuko, Magdalena Skowronek, Marta Zapałowska-Chwyć, Andrzej Starczewski
Background: PCOS (polycystic ovary syndrome) is called a pathology of the XX century and affects at least 10-15% women of childbearing age. The therapy involves pharmacotherapy of hormonal imbalance, as well as the change of lifestyle, including the diet. Objective: Performing the quantitative assessment of components of diets of women with PCOS, comparing the results with current dietary standards for Polish people and defining dietary requirements for the patients...
2016: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/27916585/perinatal-exposure-to-glyphosate-based-herbicide-alters-the-thyrotrophic-axis-and-causes-thyroid-hormone-homeostasis-imbalance-in-male-rats
#17
Janaina Sena de Souza, Marina Malta Letro Kizys, Rodrigo Rodrigues da Conceição, Gabriel Glebocki, Renata Marino Romano, Tania Maria Ortiga-Carvalho, Gisele Giannocco, Ismael Dale Cotrim Guerreiro da Silva, Magnus Regios Dias da Silva, Marco Aurélio Romano, Maria Izabel Chiamolera
Glyphosate-based herbicides (GBHs) are widely used in agriculture. Recently, several animal and epidemiological studies have been conducted to understand the effects of these chemicals as an endocrine disruptor for the gonadal system. The aim of the present study was to determine whether GBHs could also disrupt the hypothalamic-pituitary-thyroid (HPT) axis. Female pregnant Wistar rats were exposed to a solution containing GBH Roundup(®)Transorb (Monsanto). The animals were divided into three groups (control, 5mg/kg/day or 50mg/kg/day) and exposed from gestation day 18 (GD18) to post-natal day 5 (PND5)...
December 1, 2016: Toxicology
https://www.readbyqxmd.com/read/27914857/imidacloprid-induces-various-toxicological-effects-related-to-the-expression-of-3%C3%AE-hsd-nr5a1-and-ogg1-genes-in-mature-and-immature-rats
#18
Amany Abdel-Rahman Mohamed, Wafaa A M Mohamed, Safaa I Khater
This study aimed to evaluate the adverse effects of the insecticide imidacloprid (IMI) on male spermatogenesis, steroidogenesis, and DNA damage in sexually mature and immature rats. Forty male rats (mature and immature) were equally divided into four groups: two mature and two immature groups. IMI groups of both ages were orally administered IMI in corn oil at a concentration of 1 mg/mL for kg BW/day, whereas their respective controls were orally administered corn oil only (1 mL/kg of body weight) daily for 65 days...
February 2017: Environmental Pollution
https://www.readbyqxmd.com/read/27914563/differential-effects-of-testosterone-and-estradiol-on-clitoral-function-an-experimental-study-in-rats
#19
Paolo Comeglio, Ilaria Cellai, Sandra Filippi, Chiara Corno, Francesca Corcetto, Annamaria Morelli, Elena Maneschi, Elisa Maseroli, Edoardo Mannucci, Massimiliano Fambrini, Mario Maggi, Linda Vignozzi
INTRODUCTION: Female sexual response is a complex phenomenon in which psychological, neurologic, and vascular mechanisms and hormonal factors interact. During the arousal phase, they cooperate to increase genital blood flow, thus inducing engorgement of the clitoris and lubrication of the vagina. Regulation of vascular and non-vascular smooth muscle tone is the crucial event in the erectile process. Preclinical studies have suggested that nitric oxide (NO) is the main vasodilator neurotransmitter modulating, through the second messenger cyclic guanosine monophosphate (cGMP), clitoral flow vessels...
December 2016: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/27902586/neurological-psychological-and-cognitive-disorders-in-patients-with-chronic-kidney-disease-on-conservative-and-replacement-therapy
#20
Silvia Lai, Oriano Mecarelli, Patrizia Pulitano, Roberto Romanello, Leonardo Davi, Alessia Zarabla, Amalia Mariotti, Maria Carta, Giorgia Tasso, Luca Poli, Anna Paola Mitterhofer, Massimo Testorio, Nicla Frassetti, Paola Aceto, Alessandro Galani, Carlo Lai
Chronic kidney disease (CKD) is a highly prevalent condition in the world. Neurological, psychological, and cognitive disorders, related to CKD, could contribute to the morbidity, mortality, and poor quality of life of these patients. The aim of this study was to assess the neurological, psychological, and cognitive imbalance in patients with CKD on conservative and replacement therapy.Seventy-four clinically stable patients affected by CKD on conservative therapy, replacement therapy (hemodialysis (HD), peritoneal dialysis (PD)), or with kidney transplantation (KT) and 25 healthy controls (HC), matched for age and sex were enrolled...
November 2016: Medicine (Baltimore)
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