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https://www.readbyqxmd.com/read/28335379/the-role-of-adenosine-signaling-in-headache-a-review
#1
REVIEW
Nathan T Fried, Melanie B Elliott, Michael L Oshinsky
Migraine is the third most prevalent disease on the planet, yet our understanding of its mechanisms and pathophysiology is surprisingly incomplete. Recent studies have built upon decades of evidence that adenosine, a purine nucleoside that can act as a neuromodulator, is involved in pain transmission and sensitization. Clinical evidence and rodent studies have suggested that adenosine signaling also plays a critical role in migraine headache. This is further supported by the widespread use of caffeine, an adenosine receptor antagonist, in several headache treatments...
March 13, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28334605/new-horizons-in-diabetic-neuropathy-mechanisms-bioenergetics-and-pain
#2
REVIEW
Eva L Feldman, Klaus-Armin Nave, Troels S Jensen, David L H Bennett
Pre-diabetes and diabetes are a global epidemic, and the associated neuropathic complications create a substantial burden on both the afflicted patients and society as a whole. Given the enormity of the problem and the lack of effective therapies, there is a pressing need to understand the mechanisms underlying diabetic neuropathy (DN). In this review, we present the structural components of the peripheral nervous system that underlie its susceptibility to metabolic insults and then discuss the pathways that contribute to peripheral nerve injury in DN...
March 22, 2017: Neuron
https://www.readbyqxmd.com/read/28332600/calmodulin-is-responsible-for-ca-2-dependent-regulation-of-trpa1-channels
#3
Raquibul Hasan, Alasdair T S Leeson-Payne, Jonathan H Jaggar, Xuming Zhang
TRPA1 is a Ca(2+)-permeable ion channel involved in many sensory disorders such as pain, itch and neuropathy. Notably, the function of TRPA1 depends on Ca(2+), with low Ca(2+) potentiating and high Ca(2+) inactivating TRPA1. However, it remains unknown how Ca(2+) exerts such contrasting effects. Here, we show that Ca(2+) regulates TRPA1 through calmodulin, which binds to TRPA1 in a Ca(2+)-dependent manner. Calmodulin binding enhanced TRPA1 sensitivity and Ca(2+)-evoked potentiation of TRPA1 at low Ca(2+), but inhibited TRPA1 sensitivity and promoted TRPA1 desensitization at high Ca(2+)...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28331832/glucosamine-and-chondroitin-use-in-canines-for-osteoarthritis-a-review
#4
REVIEW
Angel Bhathal, Meredith Spryszak, Christopher Louizos, Grace Frankel
Osteoarthritis is a slowly progressive and debilitating disease that affects canines of all breeds. Pain and decreased mobility resulting from osteoarthritis often have a negative impact on the affected canine's quality of life, level of comfort, daily functioning, activity, behaviour, and client-pet companionship. Despite limited and conflicting evidence, the natural products glucosamine hydrochloride (HCl) and chondroitin sulfate are commonly recommended by veterinarians for treating osteoarthritis in dogs...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28328842/three-dimensional-printing-and-computer-navigation-assisted-hemipelvectomy-for-en-bloc-resection-of-osteochondroma-a-case-report
#5
Yaqing Zhang, Lianjiang Wen, Jun Zhang, Guoliang Yan, Yue Zhou, Bo Huang
RATIONALE: Three-dimensional (3D) printed templates can be designed to match an individual's anatomy, allowing surgeons to refine preoperative planning. In addition, the use of computer navigation (NAV) is gaining popularity to improve surgical accuracy in the resection of pelvic tumors. However, its use in combination with 3D printing to assist complex pelvic tumor resection has not been reported. PATIENT CONCERNS: A 36-year-old man presented with left-sided pelvic pain and a fast-growing mass...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28328653/somatosensory-functions-in-survivors-of-critical-illness
#6
Philipp Baumbach, Theresa Götz, Albrecht Günther, Thomas Weiss, Winfried Meissner
OBJECTIVES: There is growing evidence for increased levels of pain and reduced health-related quality of life in survivors of critical illness. Recent studies showed marked small nerve fiber pathology in critically ill patients, which may contribute to chronic pain states and reduced physical recovery after ICU discharge. Primary objective of this study was the comparison of somatosensory functions between survivors of critical illness 6 months after ICU discharge and controls. In post hoc analyses, we aimed to identify associations between small fiber deficits, pain, health-related quality of life, and clinical data...
March 21, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28327167/optimal-release-timing-of-temporary-drain-clamping-after-total-knee-arthroplasty
#7
Yoon Sang Jeon, Jun Sung Park, Myung Ku Kim
BACKGROUND: Bleeding control is critical after total knee arthroplasty (TKA). The purpose of this study was to evaluate the optimal time to release the clamped drain after TKA. METHODS: We performed unilateral TKA in 120 patients using three methods of drainage. Group A (N = 40) had a 3-hour clamp applied, and group B (N = 40) had a 4-hour clamp applied. Group C (N = 40) underwent conventional negative drainage. We evaluated the drainage volume, as well as the hemodynamic markers, transfusion volume, visual analog scale (VAS) scores, and range of motion (ROM)...
March 21, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28326932/a-critical-role-of-spinal-shank2-proteins-in-nmda-induced-pain-hypersensitivity
#8
Seo-Yeon Yoon, Soon-Gu Kwon, Yong Ho Kim, Ji-Hee Yeo, Hyoung-Gon Ko, Dae-Hyun Roh, Bong-Kiun Kaang, Alvin J Beitz, Jang-Hern Lee, Seog Bae Oh
Background Self-injurious behaviors (SIBs) are devastating traits in autism spectrum disorder (ASD). Although deficits in pain sensation might be one of the contributing factors underlying the development of SIBs, the mechanisms have yet to be addressed. Recently, the Shank2 synaptic protein has been considered to be a key component in ASD, and mutations of SHANK2 gene induce the dysfunction of N-methyl-D-aspartate (NMDA) receptors, suggesting a link between Shank2 and NMDA receptors in ASD. Given that spinal NMDA receptors play a pivotal role in pain hypersensitivity, we investigated the possible role of Shank2 in nociceptive hypersensitivity by examining changes in spontaneous pain following intrathecal NMDA injection in S hank2-/- ( Shank2 knock-out, KO) mice...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28326821/understanding-self-harm-in-older-people-a-systematic-review-of-qualitative-studies
#9
Anne Pamela Frances Wand, Carmelle Peisah, Brian Draper, Henry Brodaty
OBJECTIVE: Rates of suicide in older adults are generally higher than other age groups. Although risk factors for suicide attempts, and self-harm more generally, in this population are well-characterised, many of these vulnerabilities are common to older people and individual motivations are less well understood. Qualitative research may reveal more about the underlying thought processes, meaning and experiences of older people who self-harm. METHODS: A systematic review of qualitative studies examining the reasons why older people have self-harmed was undertaken by searching databases and screening the reference lists of articles...
March 22, 2017: Aging & Mental Health
https://www.readbyqxmd.com/read/28325699/spinal-correction-in-patients-with-fukuyama-congenital-muscular-dystrophy
#10
Wataru Saito, Takanori Namba, Gen Inoue, Takayuki Imura, Masayuki Miyagi, Toshiyuki Nakazawa, Eiki Shirasawa, Kentaro Uchida, Masashi Takaso
BACKGROUND: Fukuyama congenital muscular dystrophy (FCMD) is one of the most common congenital progressive muscular dystrophies in Japan. Some patients develop a severe spinal deformity that leads to an unstable sitting position or pain. Since 2008, we have treated FCMD using posterior spinal fusion. This study reports the short-term clinical and radiographic results of posterior spinal correction and fusion in FCMD. METHODS: We retrospectively reviewed 11 consecutive FCMD patients, average age 13 years old, treated with posterior spinal instrumentation and fusion between 2008 and 2015...
March 18, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28324799/modified-masquelet-technique-using-allogeneic-umbilical-cord-derived-mesenchymal-stem-cells-for-infected-non-union-femoral-shaft-fracture-with-a-12-cm-bone-defect-a-case-report
#11
Ismail Hadisoebroto Dilogo, Muhammad Rizqi Adhi Primaputra, Jeanne Adiwinata Pawitan, Isabella Kurnia Liem
INTRODUCTION: Non-union due to large bone loss often causes significant long-term morbidity. We incorporate the use of allogeneic umbilical cord-derived mesenchymal stem cells (UC-MSCs) as part of the diamond concept of regenerative medicine in a case of infected non-union fracture. PRESENTATION OF CASE: We reported a 54-year-old female patient presenting with pain on the right thigh. She was previously diagnosed with a closed fracture of the right femoral shaft and underwent four surgeries before finally being referred to Dr...
March 6, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28324318/botulinum-neurotoxin-type-a-for-the-treatment-of-pain-not-just-in-migraine-and-trigeminal-neuralgia
#12
Giorgio Sandrini, Roberto De Icco, Cristina Tassorelli, Nicola Smania, Stefano Tamburin
BACKGROUND: Despite their huge epidemiological impact, primary headaches, trigeminal neuralgia and other chronic pain conditions still receive suboptimal medical approach, even in developed countries. The limited efficacy of current pain-killers and prophylactic treatments stands among the main reasons for this phenomenon. Botulinum neurotoxin (BoNT) represents a well-established and licensed treatment for chronic migraine, but also an emerging treatment for other types of primary headache, trigeminal neuralgia, neuropathic pain, and an increasing number of pain conditions...
December 2017: Journal of Headache and Pain
https://www.readbyqxmd.com/read/28323374/characteristics-of-short-stay-critical-care-admissions-from-emergency-departments-in-maryland
#13
Obiora O Chidi, Sarah M Perman, Adit A Ginde
OBJECTIVES: Critical care is an expensive and limited resource, and short stay critical care admissions may be treated in alternate, less costly settings. This study objective was to determine the proportion of critical care admissions with a short critical care length of stay and identify the clinical characteristics and diagnoses associated with high and low rates of short stay critical care admissions. METHODS: Secondary analysis of the 2011 Maryland State Inpatient Database...
March 21, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28323240/the-impact-of-continuous-use-of-lumbosacral-orthoses-on-trunk-motor-performance-a-systematic-review-with-meta-analysis
#14
REVIEW
Hiroshi Takasaki, Takahiro Miki
BACKGROUND CONTEXT: The lumbosacral orthosis (LSO) is prescribed by general practitioners for the management of low back pain. It may be speculated that continuous use of the LSO for a prolonged period reduces mechanical loading to the trunk muscle in daily living and results in impairments of the trunk muscle. PURPOSE: To investigate whether the trunk motor performances are impaired by continuous use of the lumbosacral orthosis. STUDY DESIGN/SETTING: Systematic review with meta-analysis...
March 17, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28322212/severe-mutilation-of-a-critically-endangered-taiwanese-humpback-dolphin-sousa-chinensis-taiwanensis-by-fishing-gear
#15
John Y Wang, Claryana Araújo-Wang
Direct observations of the causes of injuries to cetaceans are rare events. For very small and declining populations, such events may be even less likely to be observed because of the few individuals that remain. A long-term monitoring program using photographic identification of individuals resulted in the documentation of an individual Taiwanese humpback dolphin Sousa chinensis taiwanensis that survived a harmful interaction with fishing gear. An adult female that was accompanied by a young calf sustained massive damage to several tissue types on her dorsal surface...
March 21, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/28321697/robust-gene-expression-changes-in-the-ganglia-following-subclinical-reactivation-in-rhesus-macaques-infected-with-simian-varicella-virus
#16
Nicole Arnold, Christine Meyer, Flora Engelmann, Ilhem Messaoudi
Varicella zoster virus (VZV) causes varicella during acute infection and establishes latency in the sensory ganglia. Reactivation of VZV results in herpes zoster, a debilitating and painful disease. It is believed that VZV reactivates due to a decline in cell-mediated immunity; however, the roles that CD4 versus CD8 T cells play in the prevention of herpes zoster remain poorly understood. To address this question, we used a well-characterized model of VZV infection where rhesus macaques are intrabronchially infected with the homologous simian varicella virus (SVV)...
March 20, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28320993/intractable-back-pain-after-coil-embolization-of-giant-veno-venous-collaterals-in-a-patient-with-fontan-circulation
#17
Seigo Okada, Masahiro Kamada, Naomi Nakagawa, Yukiko Ishiguchi, Yuji Moritoh, Mayuko Shohi, Kengo Okamoto, Shunji Hasegawa, Shouichi Ohga
Veno-venous collaterals are sometimes seen in patients after the Fontan procedure. A 28-year-old female with tricuspid atresia who underwent the Fontan procedure had oxygen desaturation due to a giant veno-venous collateral. Coil embolization was performed for the collateral. After the procedure, she complained of severe back pain. Anti-inflammatory analgesics and steroids were not effective, although carbamazepine promptly relieved the intractable pain. Treatment-related pain after coil embolization for veno-venous collaterals in patients with Fontan physiology is quite rare, although cardiologists must recognize a critical condition to be differentiated from vascular occlusion...
March 21, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28320952/identification-of-a-putative-binding-site-critical-for-general-anesthetic-activation-of-trpa1
#18
Hoai T Ton, Thieu X Phan, Ara M Abramyan, Lei Shi, Gerard P Ahern
General anesthetics suppress CNS activity by modulating the function of membrane ion channels, in particular, by enhancing activity of GABAA receptors. In contrast, several volatile (isoflurane, desflurane) and i.v. (propofol) general anesthetics excite peripheral sensory nerves to cause pain and irritation upon administration. These noxious anesthetics activate transient receptor potential ankyrin repeat 1 (TRPA1), a major nociceptive ion channel, but the underlying mechanisms and site of action are unknown...
March 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28318023/therapeutic-disasters-that-hastened-safety-testing-of-new-drugs
#19
EDITORIAL
M F Paine
New drugs were not required to undergo premarket safety testing in the United States until 1938, when a therapeutic disaster-the Elixir Sulfanilamide tragedy-prompted Congress to pass a bill mandating this now-routine process. History repeated itself nearly 25 years later, when another therapeutic disaster-the thalidomide tragedy-led to passage of new amendments in 1962 to ensure drug efficacy and greater drug safety. As is typical with historical events, critical information was gained that led to novel approaches for understanding, predicting, diagnosing, and managing drug-induced toxicities...
April 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28317097/engagement-in-advance-care-planning-and-surrogates-knowledge-of-patients-treatment-goals
#20
Terri R Fried, Maria Zenoni, Lynne Iannone, John O'Leary, Brenda T Fenton
OBJECTIVES: A key objective of advance care planning (ACP) is improving surrogates' knowledge of patients' treatment goals. Little is known about whether ACP outside of a trial accomplishes this. The objective was to examine patient and surrogate reports of ACP engagement and associations with surrogate knowledge of goals. DESIGN: Cohort study SETTING: Primary care in a Veterans Affairs Medical Center. PARTICIPANTS: 350 community-dwelling veterans age ≥55 years and the individual they would choose to make medical decisions on their behalf, interviewed separately...
March 20, 2017: Journal of the American Geriatrics Society
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