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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
#1
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...
June 15, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28620273/state-dependent-decoding-algorithms-improve-the-performance-of-a-bidirectional-bmi-in-anesthetized-rats
#2
Vito De Feo, Fabio Boi, Houman Safaai, Arno Onken, Stefano Panzeri, Alessandro Vato
Brain-machine interfaces (BMIs) promise to improve the quality of life of patients suffering from sensory and motor disabilities by creating a direct communication channel between the brain and the external world. Yet, their performance is currently limited by the relatively small amount of information that can be decoded from neural activity recorded form the brain. We have recently proposed that such decoding performance may be improved when using state-dependent decoding algorithms that predict and discount the large component of the trial-to-trial variability of neural activity which is due to the dependence of neural responses on the network's current internal state...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28619389/the-promising-effect-of-linagliptin-and-or-indole-3-carbinol-on-experimentally-induced-polycystic-ovarian-syndrome-the-role-of-transforming-growth-factor-beta-1-oxidative-stress-and-nrf2-ho-1-pathway
#3
Ahmed M Kabel, Aisha H Al-Shehri, Rehab A Altalhi
Polycystic ovarian syndrome (PCOS) is one of the most common medical condition that leads to female infertility worldwide. The aim of this study was to assess the effect of linagliptin and/or indole-3-carbinol (I3C) on PCOS in female rats. Fifty female Wistar rats were randomly allocated into five equal groups: Control group; Letrozole induced PCOS group; Letrozole + Linagliptin group; Letrozole + I3C group and Letrozole + Linagliptin + I3C group. Body weight, body mass index, Lee index and ovarian indices were determined...
June 12, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28615213/experimental-and-human-evidence-for-lipocalin-2-neutrophil-gelatinase-associated-lipocalin-ngal-in-the-development-of-cardiac-hypertrophy-and-heart-failure
#4
Francine Z Marques, Priscilla R Prestes, Sean G Byars, Scott C Ritchie, Peter Würtz, Sheila K Patel, Scott A Booth, Indrajeetsinh Rana, Yosuke Minoda, Stuart P Berzins, Claire L Curl, James R Bell, Bryan Wai, Piyush M Srivastava, Antti J Kangas, Pasi Soininen, Saku Ruohonen, Mika Kähönen, Terho Lehtimäki, Emma Raitoharju, Aki Havulinna, Markus Perola, Olli Raitakari, Veikko Salomaa, Mika Ala-Korpela, Johannes Kettunen, Maree McGlynn, Jason Kelly, Mary E Wlodek, Paul A Lewandowski, Lea M Delbridge, Louise M Burrell, Michael Inouye, Stephen B Harrap, Fadi J Charchar
BACKGROUND: Cardiac hypertrophy increases the risk of developing heart failure and cardiovascular death. The neutrophil inflammatory protein, lipocalin-2 (LCN2/NGAL), is elevated in certain forms of cardiac hypertrophy and acute heart failure. However, a specific role for LCN2 in predisposition and etiology of hypertrophy and the relevant genetic determinants are unclear. Here, we defined the role of LCN2 in concentric cardiac hypertrophy in terms of pathophysiology, inflammatory expression networks, and genomic determinants...
June 14, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28599657/comparison-of-methods-for-calculating-the-health-costs-of-endocrine-disrupters-a-case-study-on-triclosan
#5
Radka Prichystalova, Jean-Baptiste Fini, Leonardo Trasande, Martine Bellanger, Barbara Demeneix, Laura Maxim
BACKGROUND: Socioeconomic analysis is currently used in the Europe Union as part of the regulatory process in Regulation Registration, Evaluation and Authorisation of Chemicals (REACH), with the aim of assessing and managing risks from dangerous chemicals. The political impact of the socio-economic analysis is potentially high in the authorisation and restriction procedures, however, current socio-economic analysis dossiers submitted under REACH are very heterogeneous in terms of methodology used and quality...
June 9, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28576724/interaction-of-gaba-and-norepinephrine-in-the-lateral-division-of-the-bed-nucleus-of-the-stria-terminals-in-anesthetized-rat-correlating-single-unit-and-cardiovascular-responses
#6
Fahimeh Yeganeh, Ali Nasimi, Masoumeh Hatam
The bed nucleus of the stria terminalis (BST) consists of multiple anatomically distinct nuclei. The lateral division, which receives dense noradrenergic innervation, has been implicated in cardiovascular regulation and modulation of responses to stress. This study is performed to identify the cardiovascular and single-unit responses of the lateral BST to norepinephrine (NE), involved adrenoceptors, and possible interaction with GABAergic system of the BST in urethane-anesthetized rats. NE, adrenoreceptor antagonists, and GABAA antagonist were microinjected into the lateral division of BST, while arterial pressure (AP), heart rate (HR), and single-unit responses were simultaneously recorded...
May 31, 2017: Neuroscience
https://www.readbyqxmd.com/read/28463967/increased-anxiety-like-behavior-is-associated-with-the-metabolic-syndrome-in-non-stressed-rats
#7
Daniela Rebolledo-Solleiro, Gabriel Roldán-Roldán, Daniel Díaz, Myrian Velasco, Carlos Larqué, Guadalupe Rico-Rosillo, Gloria Bertha Vega-Robledo, Elena Zambrano, Marcia Hiriart, Miguel Pérez de la Mora
Metabolic syndrome (MS) is a cluster of signs that increases the risk to develop diabetes mellitus type 2 and cardiovascular disease. In the last years, a growing interest to study the relationship between MS and psychiatric disorders, such as depression and anxiety, has emerged obtaining conflicting results. Diet-induced MS rat models have only examined the effects of high-fat or mixed cafeteria diets to a limited extent. We explored whether an anxiety-like behavior was associated with MS in non-stressed rats chronically submitted to a high-sucrose diet (20% sucrose in drinking water) using three different anxiety paradigms: the shock-probe/burying test (SPBT), the elevated plus-maze (EPM) and the open-field test (OFT)...
2017: PloS One
https://www.readbyqxmd.com/read/28404742/autonomic-nervous-system-activation-mediates-the-increase-in-whole-body-glucose-uptake-in-response-to-electroacupuncture
#8
Anna Benrick, Milana Kokosar, Min Hu, Martin Larsson, Manuel Maliqueo, Rodrigo Rodrigues Marcondes, Marzia Soligo, Virginia Protto, Elisabet Jerlhag, Antonina Sazonova, Carl Johan Behre, Kurt Højlund, Peter Thorén, Elisabet Stener-Victorin
A single bout of low-frequency electroacupuncture (EA) causing muscle contractions increases whole-body glucose uptake in insulin-resistant rats. We explored the underlying mechanism of this finding and whether it can be translated into clinical settings. Changes in glucose infusion rate (GIR) were measured by euglycemic-hyperinsulinemic clamp during and after 45 min of low-frequency EA in 21 overweight/obese women with polycystic ovary syndrome (PCOS) and 21 controls matched for age, weight, and body mass index (experiment 1) and in rats receiving autonomic receptor blockers (experiment 2)...
April 12, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28386069/tissue-harvesting-site-and-culture-medium-affect-attachment-growth-and-phenotype-of-ex-vivo-expanded-oral-mucosal-epithelial-cells
#9
Rakibul Islam, Jon Roger Eidet, Reza A Badian, Marit Lippestad, Edward Messelt, May Griffith, Darlene A Dartt, Tor Paaske Utheim
Transplantation of cultured oral mucosal epithelial cells (OMECs) is a promising treatment strategy for limbal stem cell deficiency. In order to improve the culture method, we investigated the effects of four culture media and tissue harvesting sites on explant attachment, growth, and phenotype of OMECs cultured from Sprague-Dawley rats. Neither choice of media or harvesting site impacted the ability of the explants to attach to the culture well. Dulbecco's modified Eagle's medium/Ham's F12 (DMEM) and Roswell Park Memorial Institute 1640 medium (RPMI) supported the largest cellular outgrowth...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28330968/examination-of-carnitine-palmitoyltransferase-1-abundance-in-white-adipose-tissue-implications-in-obesity-research
#10
Jaycob D Warfel, Bolormaa Vandanmagsar, Olga S Dubuisson, Sydney M Hodgeson, Carrie M Elks, Eric Ravussin, Randall L Mynatt
Carnitine palmitoyltransferase 1 (CPT1) is essential for the transport of long-chain fatty acids into the mitochondria for oxidation. Recently, it was reported that decreased CPT1b mRNA in adipose tissue was a contributing factor for obesity in rats. We therefore closely examined the expression level of Cpt1 in adipose tissue from mice, rats, and humans. Cpt1a is the predominate isoform in adipose tissue from all three species. Rat white adipose tissue has a moderate amount of Cpt1b mRNA, but it is very minor compared with Cpt1b expression in muscle...
May 1, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28274727/serum-uric-acid-is-not-independently-associated-with-plasma-renin-activity-and-plasma-aldosterone-in-hypertensive-adults
#11
G Mulè, A Castiglia, M Morreale, G Geraci, C Cusumano, L Guarino, D Altieri, M Panzica, F Vaccaro, S Cottone
BACKGROUND AND AIMS: In experimental investigations conducted in rats, raising serum uric acid (SUA) levels resulted in the stimulation of intrarenal renin expression. Studies in humans exploring the association of SUA with plasma renin activity (PRA) yielded conflicting results. Moreover, little is known about the relationship of SUA with plasma aldosterone concentration (PAC). The study aimed to assess the relationship between SUA levels, PRA, and PAC and the influence of age, gender, body mass index (BMI), and hyperuricemia on these relationships in subjects with essential hypertension (EH)...
December 27, 2016: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28268955/a-non-linear-mapping-algorithm-shaping-the-control-policy-of-a-bidirectional-brain-machine-interface
#12
Fabio Boi, Marianna Semprini, Alessandro Vato
Motor brain-machine interfaces (BMIs) transform neural activities recorded directly from the brain into motor commands to control the movements of an external object by establishing an interface between the central nervous system (CNS) and the device. Bidirectional BMIs are closed-loop systems that add a sensory channel to provide the brain with an artificial feedback signal produced by the interaction between the device and the external world. Taking inspiration from the functioning of the spinal cord in mammalians, in our previous works we designed and developed a bidirectional BMI that uses the neural signals recorded form rats' motor cortex to control the movement of an external object...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28243792/hmox1-as-a-marker-of-iron-excess-induced-adipose-tissue-dysfunction-affecting-glucose-uptake-and-respiratory-capacity-in-human-adipocytes
#13
José María Moreno-Navarrete, Francisco Ortega, Amaia Rodríguez, Jèssica Latorre, Sara Becerril, Mònica Sabater-Masdeu, Wifredo Ricart, Gema Frühbeck, José Manuel Fernández-Real
AIMS/HYPOTHESIS: Iron excess in adipose tissue is known to promote adipose tissue dysfunction. Here, we aimed to investigate the possible role of haem oxygenase 1 (HMOX1) in iron excess-induced adipose tissue dysfunction. METHODS: Cross-sectionally, HMOX1 gene expression in subcutaneous and visceral adipose tissue was analysed in two independent cohorts (n = 234 and 40) in relation to obesity. We also evaluated the impact of weight loss (n = 21), weight gain (in rats, n = 20) on HMOX1 mRNA; HMOX1 mRNA levels during human adipocyte differentiation; the effects of inflammation and iron on adipocyte HMOX1; and the effects of HMOX1-induced activity on adipocyte mitochondrial respiratory function, glucose uptake and adipogenesis...
February 27, 2017: Diabetologia
https://www.readbyqxmd.com/read/28242173/the-presence-of-cardiovascular-disease-does-not-modify-the-weak-impact-obesity-has-on-health-related-quality-of-life-in-patients-with-hip-osteoarthritis-in-the-khoala-cohort
#14
Laurie Renaudin, Francis Guillemin, Jacques Pouchot, Anne-Christine Rat
OBJECTIVE: In people with hip osteoarthritis (OA), the impact of obesity on health-related quality of life (HRQoL) remains unknown. Also whether cardiovascular conditions can modify the obesity-HRQoL relation has not been explored. We aimed to (1) study the cross-sectional relationship between body mass index (BMI) and HRQoL in symptomatic hip OA patients and determine whether cardiovascular comorbidity modifies this relationship and (2) examine the impact of BMI on the course of HRQoL over time...
February 24, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28235848/patients-with-long-qt-syndrome-caused-by-impaired-herg-encoded-kv11-1-potassium-channel-have-exaggerated-endocrine-pancreatic-and-incretin-function-associated-with-reactive-hypoglycemia
#15
Louise Hyltén-Cavallius, Eva W Iepsen, Nicolai J Wewer Albrechtsen, Mathilde Svendstrup, Anniek F Lubberding, Bolette Hartmann, Thomas Jespersen, Allan Linneberg, Michael Christiansen, Henrik Vestergaard, Oluf Pedersen, Jens J Holst, Jørgen K Kanters, Torben Hansen, Signe S Torekov
BACKGROUND: Loss-of-function mutations in hERG (encoding the Kv11.1 voltage-gated potassium channel) cause long-QT syndrome type 2 (LQT2) because of prolonged cardiac repolarization. However, Kv11.1 is also present in pancreatic α and β cells and intestinal L and K cells, secreting glucagon, insulin, and the incretins glucagon-like peptide-1 (GLP-1) and GIP (glucose-dependent insulinotropic polypeptide), respectively. These hormones are crucial for glucose regulation, and long-QT syndrome may cause disturbed glucose regulation...
May 2, 2017: Circulation
https://www.readbyqxmd.com/read/28227162/a-non-linear-mapping-algorithm-shaping-the-control-policy-of-a-bidirectional-brain-machine-interface
#16
Fabio Boi, Marianna Semprini, Alessandro Vato, Fabio Boi, Marianna Semprini, Alessandro Vato, Fabio Boi, Marianna Semprini, Alessandro Vato
Motor brain-machine interfaces (BMIs) transform neural activities recorded directly from the brain into motor commands to control the movements of an external object by establishing an interface between the central nervous system (CNS) and the device. Bidirectional BMIs are closed-loop systems that add a sensory channel to provide the brain with an artificial feedback signal produced by the interaction between the device and the external world. Taking inspiration from the functioning of the spinal cord in mammalians, in our previous works we designed and developed a bidirectional BMI that uses the neural signals recorded form rats' motor cortex to control the movement of an external object...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28187014/delayed-donor-bone-marrow-infusion-induces-liver-transplant-tolerance
#17
Yan Xie, Yang Wu, Kang Xin, Jiao-Jing Wang, Hong Xu, Suzanne T Ildstad, Joseph Leventhal, Guang-Yu Yang, Zheng Zhang, Josh Levitsky
BACKGROUND: Nonmyeloablative conditioning followed by donor bone marrow infusion (BMI) to induce tolerance has not been robustly tested in liver transplantation (LT) and may be unsafe at the time of LT. We hypothesized T cell-depleted BMI is effective in inducing tolerance when delayed after LT, resulting in potentially safer future clinical applications. METHODS: Nonimmunosuppressed syngeneic (Lewis to Lewis) and allogeneic (ACI to Lewis) rat LT transplants were initially performed as controls...
May 2017: Transplantation
https://www.readbyqxmd.com/read/28132062/robot-assisted-choledochoduodenostomy-a-safe-and-reproducible-procedure-for-benign-common-bile-duct-obstruction
#18
Axel Gilbert, Alexandre Doussot, Pablo Ortega-Deballon, Florian Rostain, Patrick Rat, Olivier Facy
BACKGROUND: Choledochoduodenostomy (CD) is an option for treating choledocholithiasis and benign biliary obstruction after failure of endoscopic treatment. Nevertheless, this procedure is rarely performed using a mini-invasive approach because of its technical complexity. Robotic assistance could be a safer approach to overcome such technical issues. METHODS: All consecutive patients who underwent a robot-assisted CD for benign biliary obstruction were included...
2017: Digestive Surgery
https://www.readbyqxmd.com/read/28108289/negative-feedback-regulation-between-microrna-let-7g-and-lox-1-mediated-hypoxia-induced-pasmcs-proliferation
#19
Wei-Fang Zhang, Tian-Tian Zhu, You-Wen Xiong, Ai-Zhen Xiong, Xiao-Yue Ge, Chang-Ping Hu, Zheng Zhang
BACKGROUND: Pulmonary hypertension (PH) is a proliferative disorder associated with enhanced proliferation and suppressed apoptosis of pulmonary artery smooth muscle cells (PASMCs). Our lately study demonstrated that let-7g inhibited hypoxia-induced proliferation of PASMCs via repressing c-myc-Bmi-1-p16 signaling pathway. However, the upstream of let-7g has not yet been fully defined. Previous studies have shown that LOX-1, a target of let-7g, could also regulate the expression of let-7g in human aortic endothelial cells...
January 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28059450/kcnq1-variants-associate-with-hypertension-in-type-2-diabetes-and-affect-smooth-muscle-contractility-in-vitro
#20
Kuo-Chin Huang, Te-Mao Li, Xiang Liu, Jin-Hua Chen, Wen-Kuei Chien, Yi-Tzone Shiao, Hsinyi Tsang, Ting-Hsu Lin, Chiu-Chu Liao, Shao-Mei Huang, Ju-Pi Li, Cheng-Wen Lin, Jung-Chun Lin, Chih-Chien Lin, Chih-Ho Lai, Chi-Fung Cheng, Wen-Miin Liang, Chien-Hui Hung, Ching-Chu Chen, Ying-Ju Lin, Fuu Jen-Tsai
KCNQ1 encodes a potassium voltage-gated channel and represents a susceptibility locus for type 2 diabetes mellitus (T2DM). Here, we explored the association between KCNQ1 polymorphisms and hypertension risk in individuals with T2DM, as well as the role of KCNQ1 in vascular smooth muscle cell contraction in vitro. To investigate the relationship between KCNQ1 and the risk of developing hypertension in patients with T2DM, we divided the T2DM cohort into hypertension (n = 452) and non-hypertension (n = 541) groups...
January 6, 2017: Journal of Cellular Physiology
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