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Pain and Inflammation

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https://www.readbyqxmd.com/read/28340012/assessment-of-muscle-mass-relative-to-fat-mass-and-associations-with-physical-functioning-in-rheumatoid-arthritis
#1
Joshua F Baker, Jon T Giles, David Weber, Mary B Leonard, Babette S Zemel, Jin Long, Said Ibrahim, Patricia P Katz
Objectives.: To determine whether a novel measure of appendicular lean mass relative to fat mass is associated with physical functioning in RA. Methods.: In a cross-sectional design, three independent RA cohorts were retrospectively analysed. Whole-body DXA measures of appendicular lean mass index (ALMI, kg/m 2 ) and fat mass index (FMI, kg/m 2 ) were converted to age, sex and race-specific Z-scores using published National Health and Nutrition Examination Survey reference ranges...
February 28, 2017: Rheumatology
https://www.readbyqxmd.com/read/28339443/clinical-outcome-of-augmentation-enterocystoplasty-for-patients-with-ketamine-induced-cystitis
#2
Yu Khun Lee, Jia-Fong Jhang, Hann-Chorng Kuo
BACKGROUND: Ketamine abuse has become a global phenomenon in recent years. Ketamine-induced cystitis (KC) is a new clinical syndrome which can result in severely inflamed bladder and intractable bladder pain. Currently there is no guideline for managing patients with KC. OBJECTIVES: To analyze the clinical outcome of patients with KC managed with augmentation enterocystoplasty (AE). STUDY DESIGN: Retrospective interventional study. SETTING: A tertiary teaching hospital, Hualien Tzu Chi Hospital...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28339439/dezocine-antagonizes-morphine-analgesia-upon-simultaneous-administration-in-rodent-models-of-acute-nociception
#3
Na-Na Li, Ya-Qin Huang, Ling-Er Huang, Shao-Hui Guo, Maxwell R Shen, Chen-Ling Guo, Sheng-Mei Zhu, Yong-Xing Yao
BACKGROUND: Dezocine is a powerful analgesic that can be less addictive than morphine, yet how the two drugs interact in vivo is poorly understood. Here we administered dezocine alone or in combination with morphine to different acute nociception paradigms to explore the interactions of the 2 drugs upon co-administration. OBJECTIVE: To evaluate how dezocine interacts with morphine in different acute nociception paradigms. STUDY DESIGN: Laboratory animal study...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28338619/role-and-function-of-a2a-and-a%C3%A2-adenosine-receptors-in-patients-with-ankylosing-spondylitis-psoriatic-arthritis-and-rheumatoid-arthritis
#4
Annalisa Ravani, Fabrizio Vincenzi, Alessandra Bortoluzzi, Melissa Padovan, Silvia Pasquini, Stefania Gessi, Stefania Merighi, Pier Andrea Borea, Marcello Govoni, Katia Varani
Rheumatoid arthritis (RA), ankylosing spondylitis (AS) and psoriatic arthritis (PsA) are chronic inflammatory rheumatic diseases that affect joints, causing debilitating pain and disability. Adenosine receptors (ARs) play a key role in the mechanism of inflammation, and the activation of A2A and A₃AR subtypes is often associated with a reduction of the inflammatory status. The aim of this study was to investigate the involvement of ARs in patients suffering from early-RA (ERA), RA, AS and PsA. Messenger RNA (mRNA) analysis and saturation binding experiments indicated an upregulation of A2A and A₃ARs in lymphocytes obtained from patients when compared with healthy subjects...
March 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28337946/up-regulation-of-cxcr4-expression-contributes-to-persistent-abdominal-pain-in-rats-with-chronic-pancreatitis
#5
Hong-Yan Zhu, Xuelian Liu, Xiuhua Miao, Di Li, Shusheng Wang, Guang-Yin Xu
Background Pain in patients with chronic pancreatitis is critical hallmark that accompanied inflammation, fibrosis, and destruction of glandular pancreas. Many researchers have demonstrated that stromal cell-derived factor 1 (also named as CXCL12) and its cognate receptor C-X-C chemokine receptor type 4 (CXCR4) involved in mediating neuropathic and bone cancer pain. However, their roles in chronic pancreatic pain remain largely unclear. Methods Chronic pancreatitis was induced by intraductal injection of trinitrobenzene sulfonic acid to the pancreas...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28337884/neurochemical-effects-of-photobiostimulation-in-the-trigeminal-ganglion-after-inferior-alveolar-nerve-injury
#6
D O Martins, F M Santos, L R G Britto, J B D Lemos, M Chacur
Orofacial pain is associated with peripheral and central sensitization of trigeminal nociceptive neurons. Nerve injury results in release of chemical mediators that contribute to persistent pain conditions. The activation of the transient receptor potential vanilloid 1 (TRPV1), promotes release of calcitonin gene-related peptide (CGRP) and substance P (SP) from trigeminal nerve terminals. CGRP and SP contribute to the development of peripheral hyperalgesia. The expression of SP and CGRP by primary afferent neurons is rapidly increased in response to peripheral inflammation...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28337229/allergic-enteritis-in-children
#7
REVIEW
Mieczysława Czerwionka-Szaflarska, Ewa Łoś-Rycharska, Julia Gawryjołek
The gastrointestinal form of food allergy is very common in children. The most frequently observed types are allergic proctitis and proctocolitis. In most cases the symptoms subside within the first 2 months of life. The babies seem healthy, and the only abnormality is a small amount of blood in stool. Symptoms can also include small intestine inflammation and colitis. Patients may present with irritability, abdominal pain, flatulence, colic, postprandial vomiting, chronic diarrhoea, and hindered physical development...
2017: Przegla̜d Gastroenterologiczny
https://www.readbyqxmd.com/read/28336519/anticollagen-type-ii-antibodies-are-associated-with-an-acute-onset-rheumatoid-arthritis-phenotype-and-prognosticate-lower-degree-of-inflammation-during-5%C3%A2-years-follow-up
#8
Vivek Anand Manivel, Mohammed Mullazehi, Leonid Padyukov, Helga Westerlind, Lars Klareskog, Lars Alfredsson, Saedis Saevarsdottir, Johan Rönnelid
OBJECTIVE: Antifibrillar collagen type II (anti-CII) antibody-positive patients with rheumatoid arthritis (RA) have early but not late signs of increased inflammation and joint erosions. We wanted to replicate this in a large RA cohort, and to relate to human leukocyte antigen (HLA)-DRB1* alleles. METHODS: Anti-CII and anti-cyclic citrullinated peptide (CCP)2 were measured at baseline in 773 patients with RA from the Swedish Epidemiological Investigation in Rheumatoid Arthritis (EIRA) study with clinical follow-up data from the Swedish Rheumatology Quality Register (SRQ) registry, and 1476 with HLA-DRB1* information...
March 23, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28336490/novel-therapeutic-interventions-for-pseudoachondroplasia
#9
Karen L Posey, Jacqueline T Hecht
Pseudoachondroplasia (PSACH), a severe short-limbed dwarfing condition, is associated with life-long joint pain and early onset osteoarthritis. PSACH is caused by mutations in cartilage oligomeric matrix protein (COMP), a pentameric matricellular protein expressed primarily in cartilage and other musculoskeletal tissues. Mutations in COMP diminish calcium binding and as a result perturb protein folding and export to the extracellular matrix. Mutant COMP is retained in the endoplasmic reticulum (ER) of growth plate chondrocytes resulting in massive intracellular COMP retention...
March 21, 2017: Bone
https://www.readbyqxmd.com/read/28336292/structural-elucidation-and-physiologic-functions-of-specialized-pro-resolving-mediators-and-their-receptors
#10
REVIEW
Nan Chiang, Charles N Serhan
The acute inflammatory response is host protective to contain foreign invaders. Many of today's pharmacopeia that block pro-inflammatory chemical mediators can cause serious unwanted side effects such as immune suppression. Uncontrolled inflammation is now considered a pathophysiologic basis associated with, many widely occurring diseases such as cardiovascular disease, neurodegenerative diseases, diabetes, obesity and asthma, as well as the classic inflammatory diseases, e.g. arthritis, periodontal diseases...
March 20, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/28332780/differentiation-of-patented-crystalline-glucosamine-sulfate-from-other-glucosamine-preparations-will-optimize-osteoarthritis-treatment
#11
REVIEW
Sukit Saengnipanthkul, Saranatra Waikakul, Sattaya Rojanasthien, Kitti Totemchokchyakarn, Attarit Srinkapaibulaya, Tai Cheh Chin, Nguyen Mai Hong, Olivier Bruyère, Cyrus Cooper, Jean-Yves Reginster, Myat Lwin
Symptomatic slow-acting drugs for osteoarthritis (SYSADOAs) are recommended for the medium- to long-term management of knee osteoarthritis (OA) due to their abilities to control pain, improve function and delay joint structural changes. Among SYSADOAs, evidence is greatest for the patented crystalline glucosamine sulfate (pCGS) formulation (Mylan). Glucosamine is widely available as glucosamine sulfate (GS) and glucosamine hydrochloride (GH) preparations that vary substantially in molecular form, pharmaceutical formulation and dose regimen...
March 23, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28332601/trpm8-in-the-negative-regulation-of-tnf%C3%AE-expression-during-cold-stress
#12
Xin-Pei Wang, Xuan Yu, Xiao-Jin Yan, Fan Lei, Yu-Shuang Chai, Jing-Fei Jiang, Zhi-Yi Yuan, Dong-Ming Xing, Li-Jun Du
Transient Receptor Potential Melastatin-8 (TRPM8) reportedly plays a fundamental role in a variety of processes including cold sensation, thermoregulation, pain transduction and tumorigenesis. However, the role of TRPM8 in inflammation under cold conditions is not well known. Since cooling allows the convergence of primary injury and injury-induced inflammation, we hypothesized that the mechanism of the protective effects of cooling might be related to TRPM8. We therefore investigated the involvement of TRPM8 activation in the regulation of inflammatory cytokines...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28331804/infected-ascites-distinguishing-secondary-peritonitis-from-spontaneous-bacterial-peritonitis-in-a-cirrhotic-patient-with-classic-symptoms
#13
Marvin Louis Roy Lu, Akanksha Agarwal, Josh Sloan, Aaron Kosmin
INTRODUCTION: Spontaneous bacterial peritonitis can be differentiated from secondary bacterial peritonitis by the absence of a surgically treatable intra-abdominal source of infection. However, oftentimes this is unapparent and other clinical clues need to be sought after to make the right diagnosis. CASE: A 64-year-old woman was admitted because of three days of worsening diffuse abdominal pain and distention. She was morbidly obese and had a history of non-alcoholic steatohepatitis (NASH) cirrhosis...
2017: IDCases
https://www.readbyqxmd.com/read/28331360/clear-differences-in-cerebrospinal-fluid-proteome-between-women-with-chronic-widespread-pain-and-healthy-women-a-multivariate-explorative-cross-sectional-study
#14
Patrik Olausson, Bijar Ghafouri, Emmanuel Bäckryd, Björn Gerdle
INTRODUCTION: Frequent chronic local pain can develop into chronic widespread pain (CWP). The spread of pain is correlated with pain intensity, anxiety, and depression, conditions that ultimately lead to a poor quality of life. Knowledge is incomplete about CWP's etiology, although it has been suggested that both central hyperexcitability and/or a combination with peripheral factors may be involved. Cerebrospinal fluid (CSF) could act as a mirror for the central nervous system as proteins are signal substances that activate the formation of algesics and control nociceptive processes...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28330435/idiopathic-carotidynia
#15
Aleksandra Policha, David Williams, Mark Adelman, Frank Veith, Neal S Cayne
Idiopathic carotidynia is a syndrome characterized by pain and tenderness over the carotid artery without an associated structural luminal abnormality. Controversy exists over whether this is a distinct disease entity or merely a symptom attributable to other causes of neck pain, such as carotid dissection or vasculitis. A 50-year-old woman presented with sudden-onset right neck pain. Imaging studies demonstrated transmural inflammation of the proximal internal carotid artery, without evidence of intraluminal pathology...
April 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28328595/hemorrhage-and-infarction-of-the-conjunctiva-and-orbit-in-essential-thrombocythemia
#16
Jaehoon Na, Soo Youn Choi, Sehyun Baek, Hwa Lee
An 82-year-old woman who had a history of essential thrombocythemia presented with ocular pain, bleeding, and decreased visual acuity of the left eye. Orbital computed tomography revealed a relatively well-defined homogenous mass-like lesion in the left subconjunctival and intraconal space. Conjunctival biopsy showed acute inflammation with necrosis, vascular ectasia with thrombosis and hemorrhage. After the treatment with hydroxyurea and anagrelide, her symptom and lesion were markedly improved. Hematologic disorders like essential thrombocythemia should be considered in patients with severe spontaneous bleeding around the eye...
March 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28328552/il-1%C3%AE-levels-are-associated-with-chronic-multisite-pain-in-people-living-with-hiv
#17
Jessica S Merlin, Andrew O Westfall, Sonya L Heath, Burel R Goodin, Jesse C Stewart, Robert E Sorge, Jarred Younger
BACKGROUND: The pathophysiology of chronic pain experienced by people living with HIV (PLWH) in the current antiretroviral treatment era is poorly understood. We sought to investigate the relationship between inflammation and chronic pain in PLWH. We hypothesized that, among PLWH who have undetectable HIV viral loads, those with Chronic Multisite Pain (CMP) would have higher levels of circulating pain-related inflammatory markers than those without chronic pain. SETTING: This study was conducted at the University of Alabama at Birmingham's Center for AIDS Research Network of Integrated Clinical System (CNICS) site...
March 20, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28326936/a-role-for-the-locus-coeruleus-in-the-analgesic-efficacy-of-n-acetylaspartylglutamate-peptidase-gcpii-inhibitors-zj43-and-2-pmpa
#18
Takahiro Nonaka, Toshihiko Yamada, Tatsuhiro Ishimura, Daiying Zuo, John R Moffett, Joseph H Neale, Tatsuo Yamamoto
N-acetylaspartylglutamate (NAAG) is the third most prevalent and widely distributed neurotransmitter in the mammalian nervous system. NAAG activates a group II metabotropic glutamate receptor (mGluR3) and is inactivated by an extracellular enzyme, glutamate carboxypeptidase II (GCPII) in vivo. Inhibitors of this enzyme are analgesic in animal models of inflammatory, neuropathic and bone cancer pain. NAAG and GCPII are present in the locus coeruleus, a center for the descending noradrenergic inhibitory pain system...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28326931/overexpression-of-suppressor-of-cytokine-signaling-3-in-dorsal-root-ganglion-attenuates-cancer-induced-pain-in-rats
#19
Jinrong Wei, Meng Li, Dieyu Wang, Hongyan Zhu, Xiangpeng Kong, Shusheng Wang, You-Lang Zhou, Zhong Ju, Guang-Yin Xu, Guo-Qin Jiang
Background Cancer-induced pain (CIP) is one of the most severe types of chronic pain with which clinical treatment remains challenging and the involved mechanisms are largely unknown. Suppressor of cytokine signaling 3 (SOCS3) is an important intracellular protein and provides a classical negative feedback loop, thus involving in a wide variety of processes including inflammation and nociception. However, the role of SOCS3 pathway in CIP is poorly understood. The present study was designed to investigate the role of SOCS3 in dorsal root ganglion (DRG) in the development of CIP...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28326928/cxcr4-signaling-in-macrophages-contributes-to-periodontal-mechanical-hypersensitivity-in-porphyromonas-gingivalis-induced-periodontitis-in-mice
#20
Hidekazu Nagashima, Masamichi Shinoda, Kuniya Honda, Noriaki Kamio, Masahiro Watanabe, Tatsuro Suzuki, Naoyuki Sugano, Shuichi Sato, Koichi Iwata
Background Periodontitis is an inflammatory disease accompanied by alveolar bone loss and progressive inflammation without pain. However, the potential contributors eliminating pain associated with gingival inflammation are unknown. Results we examined the involvement of CXC chemokine receptor type 4 (CXCR4) on the mechanical sensitivity of inflamed periodontal tissue, using a mouse model of periodontitis established by the ligation of the tooth cervix of a maxillary second molar and inoculation with Porphyromonas gingivalis (P...
January 2017: Molecular Pain
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