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https://www.readbyqxmd.com/read/28812431/oral-administration-of-curcumin-attenuates-visceral-hyperalgesia-through-inhibiting-phosphorylation-of-trpv1-in-rat-model-of-ulcerative-colitis
#1
Mei Yang, Juan Wang, Chunxue Yang, Hongxiu Han, Weifang Rong, Guohua Zhang
Background Curcumin has been reported to have anti-inflammatory and anti-nociceptive effects. The present study was designed to explore the potential therapeutic effects of curcumin on visceral hyperalgesia and inflammation in a rat model of ulcerative colitis. We observed the effects of orally administered curcumin on the disease activity index, histological change in colon, colorectal distension-induced abdominal withdrawal reflex, the expression of transient receptor potential vanilloid 1 (TRPV1) and phosphorylated TRPV1 in dextran sulfate sodium-induced colitis rats...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28794881/procalcitonin-a-promising-diagnostic-marker-for-sepsis-and-antibiotic-therapy
#2
REVIEW
Ashitha L Vijayan, Vanimaya, Shilpa Ravindran, R Saikant, S Lakshmi, R Kartik, Manoj G
BACKGROUND: Sepsis is a global healthcare problem, characterized by whole body inflammation in response to microbial infection, which leads to organ dysfunction. It is becoming a frequent complication in hospitalized patients. Early and differential diagnosis of sepsis is needed critically to avoid unnecessary usage of antimicrobial agents and for proper antibiotic treatments through the screening of biomarkers that sustains with diagnostic significance. MAIN BODY OF ABSTRACT: Current targeting conventional markers (C-reactive protein, white blood cell, tumour necrosis factor-α, interleukins, etc...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28792272/trigeminovascular-calcitonin-gene-related-peptide-function-in-cacna1a-r192q-mutated-knock-in-mice
#3
Kayi Y Chan, Alejandro Labastida-Ramírez, Martha B Ramírez-Rosas, Sieneke Labruijere, Ingrid M Garrelds, Alexander Hj Danser, Arn Mjm van den Maagdenberg, Antoinette MaassenVanDenBrink
Familial hemiplegic migraine type 1 (FHM1) is a rare migraine subtype. Whereas transgenic knock-in mice with the human pathogenic FHM1 R192Q missense mutation in the Cacna1a gene reveal overall neuronal hyperexcitability, the effects on the trigeminovascular system and calcitonin gene-related peptide (CGRP) receptor are largely unknown. This gains relevance as blockade of CGRP and its receptor are therapeutic targets under development. Hence, we set out to test these effects in FHM1 mice. We characterized the trigeminovascular system of wild-type and FHM1 mice through: (i) in vivo capsaicin- and CGRP-induced dural vasodilation in a closed-cranial window; (ii) ex vivo KCl-induced CGRP release from isolated dura mater, trigeminal ganglion and trigeminal nucleus caudalis; and (iii) peripheral vascular function in vitro ...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28790969/alpha-calcitonin-gene-related-peptide-increases-cerebral-vessel-diameter-in-animal-models-of-subarachnoid-hemorrhage-a-systematic-review-and-meta-analysis
#4
REVIEW
Liam M C Flynn, Caroline J Begg, Malcolm R Macleod, Peter J D Andrews
Delayed cerebral ischemia (DCI) is a life-threatening complication after subarachnoid hemorrhage. There is a strong association between cerebral vessel narrowing and DCI. Alpha calcitonin gene-related peptide (αCGRP) is a potent vasodilator, which may be effective at reducing cerebral vessel narrowing after subarachnoid hemorrhage (SAH). Here, we report a meta-analysis of data from nine in vivo animal studies identified in a systematic review in which αCGRP was administered in SAH models. Our primary outcome was change in cerebral vessel diameter and the secondary outcome was change in neurobehavioral scores...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28770272/effectiveness-of-anti-osteoporotic-drugs-to-prevent-secondary-fragility-fractures-systematic-review-and-meta-analysis
#5
REVIEW
T Saito, J M Sterbenz, S Malay, L Zhong, M P MacEachern, K C Chung
Patients with osteoporotic fractures have an increased risk for secondary fractures. However, a rigorous study that assesses the effectiveness of individual osteoporotic drugs in preventing subsequent fractures is lacking. The purpose of this review was to analyze the effectiveness of anti-osteoporotic drugs in preventing secondary fractures. We searched for randomized controlled trials that showed the incidence of secondary fractures while using anti-osteoporotic drugs (bisphosphonates, selective estrogen receptor modulators, parathyroid hormone (PTH), or calcitonin) in MEDLINE, Embase...
August 2, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28769868/hydrogen-sulfide-mediating-both-excitatory-and-inhibitory-effects-in-a-rat-model-of-meningeal-nociception-and-headache-generation
#6
Christiane Teicher, Roberto De Col, Karl Messlinger
BACKGROUND/PURPOSE: Hydrogen sulfide (H2S) is a neuromodulator acting through nitroxyl (HNO) when it reacts with nitric oxide (NO). HNO activates transient receptor potential channels of the ankyrin type 1 (TRPA1) causing release of calcitonin gene-related peptide from primary afferents. Activation of meningeal nociceptors projecting to the human spinal trigeminal nucleus (STN) may lead to headaches. In a rat model of meningeal nociception, the activity of spinal trigeminal neurons was used as read-out for the interaction between H2S and NO...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28767512/dissecting-the-role-of-the-crmp2-neurofibromin-complex-on-pain-behaviors
#7
Aubin Moutal, Yue Wang, Xiaofang Yang, Yingshi Ji, Shizhen Luo, Angie Dorame, Shreya S Bellampalli, Lindsey A Chew, Song Cai, Erik T Dustrude, James E Keener, Michael T Marty, Todd W Vanderah, Rajesh Khanna
Neurofibromatosis type 1 (NF1), a genetic disorder linked to inactivating mutations or homozygous deletion of the Nf1 gene, is characterized by tumorigenesis, cognitive dysfunction, seizures, migraine, and pain. Omic studies on human NF1 tissues identified an increase in expression of collapsin response mediator protein 2 (CRMP2), a cytosolic protein reported to regulate the trafficking and activity of presynaptic N-type voltage-gated calcium (Cav2.2) channels. Since neurofibromin, the protein product of the Nf1 gene, binds to and inhibits CRMP2, the neurofibromin-CRMP2 signaling cascade will likely affect Ca2+ channel activity and regulate nociceptive neurotransmission and in vivo responses to noxious stimulation...
July 31, 2017: Pain
https://www.readbyqxmd.com/read/28760938/vasorelaxation-to-the-nitroxyl-donor-isopropylamine-nonoate-in-resistance-arteries-does-not-require-perivascular-calcitonin-gene-related-peptide
#8
Alice M H Pinkney, Hamish A L Lemmey, Kim A Dora, Christopher J Garland
Nitroxyl (HNO) donors offer considerable therapeutic potential for the treatment of hypertension-related cardiovascular disorders, particularly heart failure, as they combine an inotropic action with peripheral vasodilation. Angeli's salt is the only HNO donor whose mechanism has been studied in depth, and recently, Angeli's salt vasodilation was suggested to be indirect and caused by calcitonin gene-related peptide (CGRP) released from perivascular nerves after HNO activates TRPA1 (transient receptor potential cation channel subfamily A member 1) channels...
July 31, 2017: Hypertension
https://www.readbyqxmd.com/read/28760230/biochemical-testing-in-thyroid-disorders
#9
REVIEW
Nazanene H Esfandiari, Maria Papaleontiou
This article summarizes the main principles for the appropriate use of laboratory testing in the diagnosis and management of thyroid disorders, as well as controversies that have arisen in association with some of these biochemical tests. To place a test in perspective, its sensitivity and accuracy should be taken into account. Ordering the correct laboratory tests facilitates the early diagnosis of a thyroid disorder and allows for timely and appropriate treatment. This article focuses on a comprehensive update regarding thyroid-stimulating hormone, thyroxine/triiodothyronine, thyroid autoantibodies, thyroglobulin, and calcitonin...
September 2017: Endocrinology and Metabolism Clinics of North America
https://www.readbyqxmd.com/read/28756217/maternal-insulin-therapy-does-not-restore-foetoplacental-endothelial-dysfunction-in-gestational-diabetes-mellitus
#10
Mario Subiabre, Luis Silva, Roberto Villalobos-Labra, Fernando Toledo, Mario Paublo, Marcia A López, Rocío Salsoso, Fabián Pardo, Andrea Leiva, Luis Sobrevia
Pregnant women diagnosed with gestational diabetes mellitus subjected to diet (GDMd) that do not reach normal glycaemia are passed to insulin therapy (GDMi). GDMd associates with increased human cationic amino acid transporter 1 (hCAT-1)-mediated transport of L-arginine and nitric oxide synthase (NOS) activity in foetoplacental vasculature, a phenomenon reversed by exogenous insulin. Whether insulin therapy results in reversal of the GDMd effect on the foetoplacental vasculature is unknown. We assayed whether insulin therapy normalizes GDMd-associated foetoplacental endothelial dysfunction...
July 26, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28755389/no-calcitonin-change-in-a-person-taking-dulaglutide-diagnosed-with-pre-existing-medullary-thyroid-cancer
#11
S I Sherman, R T Kloos, R M Tuttle, A Pontecorvi, H Völzke, K Harper, C Vance, J T Alston, A L Usborne, K W Sloop, M Lakshmanan
BACKGROUND: Glucagon-like peptide-1 receptor agonists, such as dulaglutide, exenatide and liraglutide, are approved to treat Type 2 diabetes mellitus. Although these drugs provide substantial glycaemic control, studies in rodents have prompted concerns about the development of medullary thyroid carcinoma. These data are reflected in the US package insert, with boxed warnings and product labelling noting the occurrence of these tumours after clinically relevant exposures in rodents, and contraindicating glucagon-like peptide-1 receptor agonist use in people with a personal or family history of medullary thyroid carcinoma or in people with multiple endocrine neoplasia type 2...
July 29, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/28754314/the-role-of-celsr3-in-the-development-of-central-somatosensory-projections-from-dorsal-root-ganglia
#12
Feifei Wang, Qianghua Wang, Chen Li, Panpan Yu, Yibo Qu, Libing Zhou
Dorsal root ganglion (DRG) neurons receive peripheral somatosensory information and send orderly projections to second-order relay nuclei in the spinal cord and in the brainstem. Atypical cadherin Celsr3 is known to play a critical role in wiring of several central and peripheral axons. Although Celsr3 mRNA is heavily expressed in DRG neurons, its role in the development of somatosensory projections remains unexplored. Here we assessed the role of Celsr3 in DRG using conditional gene inactivation in crosses with Wnt1-Cre mice...
July 25, 2017: Neuroscience
https://www.readbyqxmd.com/read/28744909/high-diversity-in-neuropeptide-immunoreactivity-patterns-among-three-closely-related-species-of-dinophilidae-annelida
#13
Alexandra Kerbl, Markus Conzelmann, Gáspár Jékely, Katrine Worsaae
Neuropeptides are conserved metazoan signaling molecules, and represent useful markers for comparative investigations on the morphology and function of the nervous system. However, little is known about the variation of neuropeptide expression patterns across closely related species in invertebrate groups other than insects. In this study, we compare the immunoreactivity patterns of 14 neuropeptides in three closely related microscopic dinophilid annelids (Dinophilus gyrociliatus, D. taeniatus and Trilobodrilus axi)...
July 26, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28743853/-new-methods-for-the-evaluation-of-bone-quality-relationship-between-bone-resorption-inhibitors-and-bony-quality
#14
Takashi Nagai, Koji Ishikawa, Takuma Kuroda, Yusuke Oshita, Keizo Sakamoto, Katsunori Inagaki
Bone resorption inhibitors used in Japan are bisphosphonate, selective estrogen receptor modulators(SERMs), denosumab, eldecalcitol, and calcitonin. The structural and material properties of bone quality are important factors in osteoporosis treatment. In contrast to improvements in bone density, those in bone quality are difficult to clinically determine as no simple test is available and changes are difficult to detect. Numerous reports have been published on the mechanisms by which bone resorption inhibitors increase bone density and suppress bone fractures...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28743091/performance-comparison-of-two-herbal-and-industrial-medicines-using-nanoparticles-with-a-starch-cellulose-shell-and-alginate-core-for-drug-delivery-in-vitro-studies
#15
Akbar Esmaeili, Sahar Behzadi
In this study, the performance of two kinds of industrial and herbal drugs encapsulated in nanoparticles with a shell of starch and cellulose and an alginate core were examined as a new technique for nanoparticle drug delivery. The test method involved creating a suspension of starch and alginate, which was then dried, mixed with cellulose, and heated to form core-shell nanoparticles. The industrial drug calcitonin and an extract of the herb Amaranthus retroflexcus L. were added separately and in combination to the nanoparticles, and the performance of each configuration was evaluated...
July 18, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28742111/axonal-outgrowth-neuropeptides-expression-and-receptors-tyrosine-kinase-phosphorylation-in-3d-organotypic-cultures-of-adult-dorsal-root-ganglia
#16
Estrela Neto, Cecília J Alves, Luís Leitão, Daniela M Sousa, Inês S Alencastre, Francisco Conceição, Meriem Lamghari
Limited knowledge from mechanistic studies on adult sensory neuronal activity was generated, to some extent, in recapitulated adult in vivo 3D microenvironment. To fill this gap there is a real need to better characterize the adult dorsal root ganglia (aDRG) organotypic cultures to make these in vitro systems exploitable for different approaches, ranging from basic neurobiology to regenerative therapies, to address the sensory nervous system in adult stage. We conducted a direct head-to-head comparison of aDRG and embryonic DRG (eDRG) organotypic culture focusing on axonal growth, neuropeptides expression and receptors tyrosine kinase (RTK) activation associated with neuronal survival, proliferation and differentiation...
2017: PloS One
https://www.readbyqxmd.com/read/28739811/calcitonin-gene-related-peptide-receptor-agonism-a-double-edged-sword
#17
EDITORIAL
A H Jan Danser, Antoinette MaassenVanDenBrink
No abstract text is available yet for this article.
July 25, 2017: Circulation
https://www.readbyqxmd.com/read/28738700/cholecystokininoma-syndrome-calcitonin-and-diarrhea
#18
Jens F Rehfeld, Birgitte Federspiel, Mikkel Agersnap, Ulrich Knigge, Linda Bardram
No abstract text is available yet for this article.
July 25, 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28738112/central-role-of-protein-kinase-a-in-promoting-trigeminal-nociception-in-an-in-vivo-model-of-temporomandibular-disorders
#19
Lindsey K Koop, Jordan L Hawkins, Lauren E Cornelison, Paul L Durham
AIMS: To investigate cellular changes in the spinal trigeminal nucleus (STN) and trigeminal ganglion (TG) associated with trigeminal nociception mediated by inflammation in the temporomandibular joint (TMJ). METHODS: Male Sprague-Dawley rats (n = 86) were utilized to investigate cellular and behavioral responses to prolonged TMJ inflammation caused by bilateral injection of Complete Freund's Adjuvant (CFA) in the TMJ capsules. To investigate the cellular effects of protein kinase A (PKA) in the STN, rats were injected intrathecally with the selective PKA inhibitor KT5720 prior to injection of CFA into both TMJ capsules...
July 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/28736918/phase-1-randomized-double-blind-placebo-controlled-single-dose-and-multiple-dose-studies-of-erenumab-in-healthy-subjects-and-patients-with-migraine
#20
Jan de Hoon, Anne Van Hecken, Corinne Vandermeulen, Lucy Yan, Brian Smith, Jiyun Sunny Chen, Edgar Bautista, Lisa Hamilton, Javier Waksman, Thuy Vu, Gabriel Vargas
Monoclonal antibodies (mAbs) targeting calcitonin gene-related peptide (CGRP) signaling are being explored as prophylactic treatments for migraine. Erenumab (AMG 334) is the first potent, selective, and competitive human mAb antagonist of the CGRP receptor. We report the data from two phase 1 studies assessing the safety, pharmacokinetics (PK), and pharmacodynamics of single and multiple administrations of erenumab in healthy subjects and patients with migraine. The results indicate that the PK profile of erenumab is nonlinear from 1 mg to 70 mg and the linear portion of the clearance from 70 mg to 210 mg is consistent with other human immunoglobulin (Ig)G2 antibodies...
July 24, 2017: Clinical Pharmacology and Therapeutics
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