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https://www.readbyqxmd.com/read/28821646/location-of-the-mesopontine-neurons-responsible-for-maintanance-of-anesthetic-loss-of-consciousness
#1
Anne Minert, Shai-Lee Yatziv, Marshall Devor
The transition from wakefulness to general anesthesia is widely attributed to suppressive actions of anesthetic molecules distributed by the systemic circulation to the cerebral cortex (for amnesia and loss-of-consciousness) and to the spinal cord (for atonia and antinociception). An alternative hypothesis proposes that anesthetics act on one or more brainstem or diencephalic nuclei, with suppression of cortex and spinal cord mediated by dedicated axonal pathways. We previously documented induction of an anesthesia-like state in rats by microinjection of small amounts of GABAA-R agonists into an upper brainstem region named the mesopontine tegmental anesthesia area(MPTA)...
August 16, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28819782/the-effects-of-%C3%AE-d-mannuronic-acid-m2000-as-a-novel-nsaid-on-cox1-and-cox2-activities-and-gene-expression-in-ankylosing-spondylitis-patients-and-the-murine-monocyte-macrophage-j774-cell-line
#2
Fahimeh Jafarnezhad-Ansariha, Mir Saeed Yekaninejad, Ahmad-Reza Jamshidi, Reza Mansouri, Mahdi Vojdanian, Mahdi Mahmoudi, Mohammad Javad Fattahi, Seyed Naser Hashemi, Bernd H A Rehm, Hidenori Matsuo, Emanuela Esposito, Salvatore Cuzzocrea, Abbas Mirshafiey
Ankylosing spondylitis (AS) is a debilitating chronic inflammatory disease with genetic predisposition, which is characterized by the involvement of spine and sacroiliac joints. Due to the relatively unsuccessful treatments, we designed β-D-mannuronic (M2000) with the beneficial effects in various experimental models as a novel non-steroidal anti-inflammatory drug (NSAID). The aims of our present study were: first, to compare the therapeutic effects of M2000, as a novel designed NSAID, with naproxen and placebo in Iranian patients with AS during 12 weeks; second, to evaluate the effect of M2000 on gene expression of cyclooxygenase enzyme (COX-1/COX-2), a key enzyme in the initiation of inflammatory pathways in AS patients; and third, to assess the activity of COX-1 and COX-2 enzymes in the presence/absence of M2000 at the different doses in the murine macrophage, J774 cell line...
August 17, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28817416/nicotinic-modulation-of-descending-pain-control-circuitry
#3
Iboro C Umana, Claire A Daniele, Brooke A Miller, Keith Gallagher, Meghan A Brown, Chandrika Abburi, Peggy Mason, Daniel S McGehee
Along with the well-known rewarding effects, activation of nicotinic acetylcholine receptors (nAChRs) can also relieve pain, and some nicotinic agonists have analgesic efficacy similar to opioids. A major target of analgesic drugs is the descending pain modulatory pathway, including the ventrolateral periaqueductal gray (vlPAG) and the rostral ventromedial medulla (RVM). Although activating nAChRs within this circuitry can be analgesic, little is known about the subunit composition and cellular effects of these receptors, particularly within the vlPAG...
July 3, 2017: Pain
https://www.readbyqxmd.com/read/28816506/inhibition-of-monoacylglycerol-lipase-another-signalling-pathway-for-potential-therapeutic-targets-in-migraine
#4
Rosaria Greco, Chiara Demartini, Anna Maria Zanaboni, Laura Berliocchi, Daniele Piomelli, Cristina Tassorelli
Background Drugs that modulate endocannabinoid signalling are effective in reducing nociception in animal models of pain and may be of value in the treatment of migraine. Methods We investigated the anti-nociceptive effects of inhibition of monoacylglycerol lipase (MGL), a key enzyme in the hydrolysis of the 2-arachidonoylglycerol, in a rat model of migraine based on nitroglycerin (NTG) administration. We evaluated c-fos expression in specific brain areas and nociceptive behavior in trigeminal and extra-trigeminal body areas...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28816231/molecular-mechanisms-of-the-analgesic-action-of-wu-tou-decoction-on-neuropathic-pain-in-mice-revealed-using-microarray-and-network-analysis
#5
Yan-Qiong Zhang, Chao Wang, Qiu-Yan Guo, Chun-Yan Zhu, Chen Yan, Dan-Ni Sun, Qiong-Hong Xu, Na Lin
Wu-tou Decoction (WTD) is a classic herbal formula in traditional Chinese medicine for the treatment of joint diseases, neuropathic pain (NP) and inflammatory pain. In this study we investigated whether WTD produced analgesic action in a mouse spinal nerve ligation (SNL) model and elucidated the underlying molecular mechanisms. Mice were subjected to SNL and orally treated with WTD (3.15, 6.30 or 12.60 g·kg(-1)·d(-1)) for 21 d. SNL induced mechanical hyperalgesia and heat hyperalgesia characterized by rapid and persistent pain hypersensitivity...
August 17, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28815720/pharmacological-evidence-of-involvement-of-nitric-oxide-pathway-in-anti-pruritic-effects-of-sumatriptan-in-chloroquine-induced-scratching-in-mice
#6
Nazgol-Sadat Haddadi, Sattar Ostadhadi, Saeed Shakiba, Khashayar Afshari, Nastaran Rahimi, Arash Foroutan, Ahmad-Reza Dehpour
Chloroquine (CQ) induces histamine-independent itch in human and mice. We recently reported the role of intradermal nitric oxide (NO)/ cyclic guanosine monophosphate (cGMP) pathway in CQ-evoked scratching in mice. Chloroquine stimulates neuronal nitric oxide synthase (nNOS) activity to over-producing NO in the skin. Sumatriptan, a 5-hydroxytryptamine 1b/1d receptors (5-HTR1b/1d) agonist, is involved in pain and used to treat migraine and cluster headaches. According to previous studies, sumatriptan inhibits NOS activity...
August 16, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28815513/an-update-on-p2y13-receptor-signalling-and-function
#7
Raquel Pérez-Sen, Rosa Gómez-Villafuertes, Felipe Ortega, Javier Gualix, Esmerilda G Delicado, María Teresa Miras-Portugal
The distribution of nucleotide P2Y receptors across different tissues suggests that they fulfil key roles in a number of physiological and pathological conditions. P2Y13 is one of the latest P2Y receptors identified, a novel member of the Gi-coupled P2Y receptor subfamily that responds to ADP, together with P2Y12 and P2Y14. Pharmacological studies drew attention to this new ADP receptor, with a pharmacology that overlaps that of P2Y12 receptors but with unique features and roles. The P2RY12-14 genes all reside on human chromosome 3 at 3q25...
August 17, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28815066/anaesthesia-during-oesophagectomy
#8
REVIEW
Denise P Veelo, Bart F Geerts
In this review, we will provide an overview of the current state of the art of perioperative practices for open and laparoscopic oesophagus surgery from the anaesthetist's perspective. Morbidity and mortality after oesophagectomy is still high despite multidisciplinary and enhanced recovery pathways showing promising results. The anaesthetist has an important role in the complex care of the oesophageal cancer patient. Minimizing unnecessary fluid administration, adequate pain management, hypotension, and protective lung ventilation are examples of proven strategies that can improve outcome after this high-risk surgery...
July 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28815060/defective-expression-of-atg4d-abrogates-autophagy-and-promotes-growth-in-human-uterine-fibroids
#9
Abdeljabar El Andaloussi, Samar Habib, Gizem Soylemes, Archana Laknaur, Heba Elhusseini, Ayman Al-Hendy, Nahed Ismail
Uterine fibroids (UF) are the most common pelvic tumors in women of reproductive-age and they usually cause heavy menstrual bleeding, pain and infertility. Autophagy is a collection of processes that enables the cells to digest and recycle their cytoplasmic contents, such as toxic protein aggregates, defunct or disused organelles and invading microorganisms. Dysregulation in autophagy process were described in neoplasms; however, the contribution of autophagy to the pathogenesis of UF remains unknown. In this study, we demonstrate that autophagy is deregulated in human UF as evidenced by significant accumulation of autophagosome in human UF cells compared to normal myometrium cells...
2017: Cell Death Discovery
https://www.readbyqxmd.com/read/28813618/whole-exome-sequencing-identifies-novel-variants-for-tooth-agenesis
#10
N Dinckan, R Du, L E Petty, Z Coban-Akdemir, S N Jhangiani, I Paine, E H Baugh, A P Erdem, H Kayserili, H Doddapaneni, J Hu, D M Muzny, E Boerwinkle, R A Gibbs, J R Lupski, Z O Uyguner, J E Below, A Letra
Tooth agenesis is a common craniofacial abnormality in humans and represents failure to develop 1 or more permanent teeth. Tooth agenesis is complex, and variations in about a dozen genes have been reported as contributing to the etiology. Here, we combined whole-exome sequencing, array-based genotyping, and linkage analysis to identify putative pathogenic variants in candidate disease genes for tooth agenesis in 10 multiplex Turkish families. Novel homozygous and heterozygous variants in LRP6, DKK1, LAMA3, and COL17A1 genes, as well as known variants in WNT10A, were identified as likely pathogenic in isolated tooth agenesis...
August 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28810627/carthamin-yellow-inhibits-matrix-degradation-and-inflammation-induced-by-lps-in-the-intervertebral-disc-via-suppression-of-mapk-pathway-activation
#11
Bin Chen, Han-Tao Wang, Bo Yu, Ji-Dong Zhang, Yu Feng
Carthamin yellow (CY), which is a flavonoid compound isolated from safflower, has various pharmacological effects including promoting blood circulation to remove blood stasis and alleviating pain. CY is a herb used in Chinese traditional medicines. Intervertebral disc degeneration (IDD) is a common spinal disorder and degeneration of nucleus pulposus (NP) cells and inflammation are significant parts of the pathological cascade. The curative effect of CY on NP cells in association with degeneration and inflammation remains to be elucidated...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28806211/the-opiorphin-analog-str-324-decreases-sensory-hypersensitivity-in-a-rat-model-of-neuropathic-pain
#12
Alain Van Elstraete, Philippe Sitbon, Leila Hamdi, Victor Juarez-Perez, Jean-Xavier Mazoit, Dan Benhamou, Catherine Rougeot
BACKGROUND: Neuropathic pain represents a therapeutic challenge, and treatments with increased efficacy and tolerability still need to be developed. Opiorphin protects endogenous enkephalins from degradation, potentiating enkephalin-dependent analgesia via the activation of opioid pathways. Enkephalins are natural ligands of opioid receptors, with strong affinity for δ-opioid receptors. Expression of functional δ-opioid receptors increases in sensory neurons after peripheral nerve injury in neuropathic pain models...
August 10, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28805587/osteoporosis-a-hidden-nonmotor-face-of-parkinson-s-disease
#13
Vinod Metta, Tamara C Sanchez, Chandrasekhara Padmakumar
Osteoporosis is a "hidden nonmotor face" of Parkinson's disease and a cause of considerable morbidity in the older general population and in Parkinson's disease patients. Some regard this as a "hidden epidemic." Women are overrepresented and have considerable problems related to osteoporosis. In general osteoporosis leads to reduced mobility aggravating the motor syndrome of PD. The nonmotor aspects and impact of osteoporosis in PD have remained unexplored. Possible nonmotor consequences include a range of pain syndromes related to local pain, fractures, falls, and injuries as well as pathological fractures and radiculopathy...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28805581/nonmotor-parkinson-s-and-future-directions
#14
Nataliya Titova, K Ray Chaudhuri
Nonmotor symptoms (NMS) of Parkinson's disease (PD) are integral to the condition largely regarded as a motor syndrome. A range of NMS underpin the prodromal stage of Parkinson's and are present with variable frequency, range, and nature across the whole journey of a patient with Parkinson's from the onset of the motor disease to palliative stage. These symptoms also are key determinants of quality of life of the patient as well as the carer. Despite this, recognition management and focused treatment of NMS of PD remain poor...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28803834/transcutaneous-auricular-vagal-nerve-stimulation-tavns-might-be-a-mechanism-behind-the-analgesic-effects-of-auricular-acupuncture
#15
Taras Usichenko, Henriette Hacker, Martin Lotze
BACKGROUND: Randomized clinical trials (RCT) demonstrated that auricular acupuncture (AA) is effective in treatment of acute and chronic pain, although the mechanisms behind AA are not elucidated. METHODS: The data concerning the localization of AA points, which are commonly used to treat pain, were extracted from the meta-analysis of 17 RCTs and evaluated using the anatomical map of auricular afferent nerve supply. RESULTS: Fifteen out of 20 specific AA points, used in the treatment of pain, are situated in areas innervated mostly by the auricular branch of the vagal nerve (ABVN), whereas sham stimulation was applied at the helix of the auricle, innervated by cervical nerves...
August 2, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/28803389/gastrointestinal-manifestations-of-stat3-deficient-hyper-ige-syndrome
#16
Manish Arora, Preet Bagi, Anna Strongin, Jennifer Heimall, Xiongce Zhao, Monica G Lawrence, Apurva Trivedi, Carolyn Henderson, Amy Hsu, Martha Quezado, David E Kleiner, Aradhana M Venkatesan, Steven M Holland, Alexandra F Freeman, Theo Heller
OBJECTIVE: STAT 3 deficiency (autosomal dominant hyper immunoglobulin E syndrome (AD-HIES)) is a primary immunodeficiency disorder with multi-organ involvement caused by dominant negative signal transducer and activator of transcription gene 3 (STAT3) mutations. We sought to describe the gastrointestinal (GI) manifestations of this disease. METHODS: Seventy subjects aged five to 60 years with a molecular diagnosis of AD-HIES were evaluated at the National Institutes of Health (NIH)...
August 13, 2017: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/28802926/nonmotor-symptoms-and-natural-history-of-parkinson-s-disease-evidence-from-cognitive-dysfunction-and-role-of-noninvasive-interventions
#17
Roberta Biundo, Eleonora Fiorenzato, Angelo Antonini
Parkinson's disease (PD) is a common neurodegenerative disorder, characterized by motor and nonmotor symptoms (NMS). Several subsequent studies substantiate the great functional burden related to NMS, their progression, and negative effect on quality of life in PD. Additional evidence indicates interesting relationships between striatal dopaminergic function and NMS. The basal ganglia are implicated in the modulation and integration of sensory information and pain, bladder function is under control of both inhibitory (D1) and facilitatory (D2) dopaminergic inputs, finally reduced dopaminergic activity in the mesocortical and mesolimbic pathways is involved in the development of several NMS including mood, motivational, and cognitive alterations...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28801372/multi-variant-genetic-panel-for-genetic-risk-of-opioid-addiction
#18
Keri Donaldson, Laurence Demers, Kirk Taylor, Joe Lopez, Sherman Chang
Over 116 million people worldwide have chronic pain and prescription dependence. In the US, opioids account for the majority of overdose deaths, and in 2014, almost 2 million Americans abused or were dependent on prescription opioids. Genetic factors may play a key role in opioid prescription addiction. Herein, we describe genetic variations between opioid addicted and non-addicted populations and derive a predictive model determining risk of opioid addiction. This case cohort study compares the frequency of 16 single nucleotide polymorphisms involved in the brain reward pathways in patients with and without opioid addiction...
August 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28801003/who-public-health-model-a-roadmap-for-palliative-care-development
#19
Mary V Callaway, Stephen R Connor, Kathleen M Foley
The Open Society Foundation's International Palliative Care Initiative (IPCI) began to support palliative care development in Central and Eastern Europe and the Former Soviet Union in 1999. Twenty-eight country representatives were invited to discuss the need for palliative care in their countries and to identify key areas that should be addressed to improve the care of adults and children with life-limiting illnesses. As a public health concern, progress in palliative care requires integration into health policy, education and training of health care professionals, availability of essential pain relieving medications, and health care services...
August 8, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28800673/m-type-k-channels-in-peripheral-nociceptive-pathways
#20
REVIEW
Xiaona Du, Haixia Gao, David Jaffe, Hailin Zhang, Nikita Gamper
Pathological pain is a hyperexcitability disorder. Since the excitability of a neuron is set and controlled by a complement of ion channels it expresses, in order to understand and treat pain we need to develop a mechanistic insight into the key ion channels controlling excitability within the mammalian pain pathways, and how these ion channels are regulated and modulated in various physiological and pathophysiological settings. In this review we will discuss the emerging data on the expression in pain pathways, functional role and modulation of a family of voltage-gated K(+) channels called 'M channels' (KCNQ, Kv7)...
August 11, 2017: British Journal of Pharmacology
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