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https://www.readbyqxmd.com/read/29352450/carrier-mediated-uptake-of-clonidine-in-cultured-human-lung-cells
#1
Marc Le Vée, Elodie Jouan, Olivier Fardel
The lung is a preferential organ site for accumulation of lipophilic basic amine drugs, so-called pneumophilic drugs and belonging to various pharmacological classes, which can result in lung toxicity. In order to investigate the mechanism involved in such pulmonary accumulation of drugs, uptake of clonidine, used here as a prototypical basic amine drug, was characterized in cultured human lung cells. Clonidine accumulation in lung alveolar A549 cells was found to be temperature- and pH-dependent; it was saturable, with a Michaelis-Menten affinity constant (Km) value of 569...
January 19, 2018: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/29341985/dexmedetomidine-as-single-continuous-sedative-during-noninvasive-ventilation-typical-usage-hemodynamic-effects-and-withdrawal
#2
Brittany L Shutes, Samantha W Gee, Cheryl L Sargel, Kelsey A Fink, Joseph D Tobias
OBJECTIVES: Dexmedetomidine use in pediatric critical care is increasing. Its prolonged effects as a single continuous agent for sedation are not well described. The aim of the current study was to describe prolonged dexmedetomidine therapy without other continuous sedation, specifically the hemodynamic effects, discontinuation strategies, and risk factors for withdrawal. DESIGN: Retrospective chart review. SETTING: Large, single-center, quaternary care pediatric academic institution...
January 16, 2018: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/29338982/involvement-of-peripheral-alpha2a-adrenoceptor-in-the-acceleration-of-gastrointestinal-transit-and-abdominal-visceral-pain-induced-by-intermittent-deprivation-of-rem-sleep
#3
Fukie Yaoita, Masamichi Muto, Hiroki Murakami, Shiori Endo, Mifuyu Kozawa, Masahiro Tsuchiya, Takeshi Tadano, Koichi Tan-No
Many studies have associated sleep alterations with the severity of irritable bowel syndrome (IBS) symptoms, but the direct pathophysiological relationship has not been clarified. In addition, alterations in noradrenergic signaling have been implicated in the pathophysiology of IBS, and alpha2-adrenoceptors are potential treatment targets. We have previously shown that acceleration of gastrointestinal transit (GIT) elicited by intermittent rapid eye movement (REM) sleep deprivation stress may fulfill the profile of a model of IBS...
January 12, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29335879/current-approaches-and-new-developments-in-the-pharmacological-management-of-tourette-syndrome
#4
REVIEW
Julio Quezada, Keith A Coffman
Tourette syndrome (TS) is a neurodevelopmental disorder of unknown etiology characterized by spontaneous, involuntary movements and vocalizations called tics. Once thought to be rare, TS affects 0.3-1% of the population. Tics can cause physical discomfort, emotional distress, social difficulties, and can interfere with education and desired activities. The pharmacologic treatment of TS is particularly challenging, as currently the genetics, neurophysiology, and neuropathology of this disorder are still largely unknown...
January 15, 2018: CNS Drugs
https://www.readbyqxmd.com/read/29322402/laser-treatment-of-primary-axillary-hyperhidrosis-a-review-of-the-literature
#5
Jessica Cervantes, Marina Perper, Ariel E Eber, Raymond M Fertig, John P Tsatalis, Keyvan Nouri
Hyperhidrosis o`ccurs when the body produces sweat beyond what is essential to maintain thermal homeostasis. The condition tends to occur in areas marked by high-eccrine density such as the axillae, palms, and soles and less commonly in the craniofacial area. The current standard of care is topical aluminum chloride hexahydrate antiperspirant (10-20%), but other treatments such as anticholinergics, clonidine, propranolol, antiadrenergics, injections with attenuated botulinum toxin, microwave technology, and surgery have been therapeutically implicated as well...
January 11, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29304162/adrenergic-receptors-inhibit-trpv1-activity-in-the-dorsal-root-ganglion-neurons-of-rats
#6
Yumi Matsushita, Miki Manabe, Naoki Kitamura, Izumi Shibuya
Transient receptor potential vanilloid type 1 (TRPV1) is a polymodal receptor channel that responds to multiple types of stimuli, such as heat, acid, mechanical pressure and some vanilloids. Capsaicin is the most commonly used vanilloid to stimulate TRPV1. TRPV1 channels are expressed in dorsal root ganglion neurons that extend to Aδ- and C-fibers and have a role in the transduction of noxious inputs to the skin into the electrical signals of the sensory nerve. Although noradrenergic nervous systems, including the descending antinociceptive system and the sympathetic nervous system, are known to modulate pain sensation, the functional association between TRPV1 and noradrenaline in primary sensory neurons has rarely been examined...
2018: PloS One
https://www.readbyqxmd.com/read/29290746/prolonged-dexmedetomidine-infusion-and-drug-withdrawal-in-critically-ill-children
#7
Astrid S Haenecour, Winnie Seto, Charline M Urbain, Derek Stephens, Peter C Laussen, Corrine R Balit
OBJECTIVE: To characterise the incidence, symptoms and risk factors for withdrawal associated with prolonged dexmedetomidine infusion in paediatric critically ill patients. METHODS: Retrospective chart review in the paediatric intensive care unit and the cardiac critical care unit of a single tertiary children's hospital. Patients up to 18 years old, who received dexmedetomidine for longer than 48 hours were included. RESULTS: A total of 52 patients accounted for 68 unique dexmedetomidine treatment courses of more than 48 hours...
November 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/29290742/off-label-prescribing-trends-for-adhd-medications-in-very-young-children
#8
Shannon G Panther, Alice M Knotts, Tamara Odom-Maryon, Kenneth Daratha, Teri Woo, Tracy A Klein
OBJECTIVE: This study examines off-label medication prescribing use and trends in children on Medicaid with ADHD with particular focus on the very young (under age 6 years). METHODS: This was an observational cohort study and retrospective analysis of ADHD medication prescriptions from Oregon Medicaid records (N = 83,190) in 2012. Manufacturer prescribing information was used to determine off-label designation. Children ages 3 to 18 years at the time of prescription who had continuous Medicaid enrollment of at least 10 months during the index year of 2012 were included in the sample frame...
November 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/29284879/a-comparison-of-dexmedetomidine-and-clonidine-in-attenuating-the-hemodynamic-responses-at-various-surgical-stages-in-patients-undergoing-elective-transnasal-transsphenoidal-resection-of-pituitary-tumors
#9
Summaira Jan, Zulfiqar Ali, Yasir Nisar, Imtiaz Ahmad Naqash, Syed Amer Zahoor, Shabir Ahmad Langoo, Khan Azhar
Background: Transsphenoidal approach to pituitary tumors is a commonly performed procedure with the advantage of a rapid midline access to the sella with minimal complications. It may be associated with wide fluctuations in hemodynamic parameters due to intense noxious stimulus at various stages of the surgery. As duration of the surgery is short and the patients have nasal packs, it is prudent to use an anesthestic technique with an early predictable recovery. Materials and Methods: A total of 60 patients of either sex between 18 and 65 years of age, belonging to the American Society of Anesthesiologists I and II who were undergoing elective transnasal transsphenoidal pituitary surgery were chosen for this study...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29284871/comparative-study-of-clonidine-with-ropivacaine-versus-ropivacaine-alone-in-epidural-anesthesia-for-lower-limb-orthopedic-surgery
#10
Mahendra Singh, Amitesh Pathak, Aamir Laique Khan, Amit Srivastava, Devendra Negi
Background: Epidural anesthesia has been well established as a safe and effective technique not only for perioperative anesthesia but also for postoperative analgesia. Various adjuvants have been added to local anesthetic agent in an effort to prolong this duration. Aims: The aim of this study was to compare and evaluate the anesthesia and analgesic property of ropivacaine to its combination with clonidine for lower limb orthopedic surgery under epidural. Materials and Methods: In a prospective, randomized, double-blind study, eighty adult patients undergoing lower limb surgeries received either 0...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29284870/effect-of-two-different-doses-of-dexmedetomidine-on-stress-response-in-laparoscopic-pyeloplasty-a-randomized-prospective-controlled-study
#11
Rafat Shamim, Shashi Srivastava, Amit Rastogi, Kamal Kishore, Aneesh Srivastava
Background: Clonidine, opioids, β-blockers, and dexmedetomidine have been tried to attenuate stress responses during laparoscopic surgery. We evaluated the efficacy of dexmedetomidine in two different doses in attenuating stress responses on patients undergoing laparoscopic pyeloplasty. Subjects and Methods: Ninety patients were assigned to one of the three groups: Group A, Group B, and Group C. Group B received dexmedetomidine 1 mcg/kg as loading dose, followed by 0...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29284862/comparison-of-enhancement-of-analgesic-effect-of-intrathecal-neostigmine-by-intrathecal-clonidine-and-transdermal-nitroglycerin-patch-on-bupivacaine-spinal-anesthesia
#12
Mathew V Mammen, Manoj Tripathi, Harish C Chandola, Amit Tyagi, Prateek Singh Bais, Om Prakash Sanjeev
Background: Relief of pain is very important goal intraoperatively and postoperatively. Neostigmine has been used successfully intrathecally with other agents such as clonidine and opioids for pain relief. Aims: This study aims to compare and evaluate the efficacy and safety of combining intrathecal (IT) neostigmine with IT clonidine and transdermal nitroglycerin (tNTG) patch for the relief of pain in patients after surgery. Settings and Design: This was a randomized, prospective, and comparative study...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29284860/effect-of-locally-administered-dexmedetomidine-as-adjuvant-to-levobupivacaine-in-supraclavicular-brachial-plexus-block-double-blind-controlled-study
#13
Bikash Bisui, Swastika Samanta, Sumanta Ghoshmaulik, Amit Banerjee, Tirtha R Ghosh, Suman Sarkar
Context: Brachial plexus block is effective with good postoperative analgesia in upper limb surgery has gained importance as it safe, low cost, and maintains stable hemodynamics intraoperatively. To decrease the onset time and prolong the duration of nerve block bicarbonate, opioids (morphine, fentanyl, etc.), sympathomimetic agents (epinephrine, phenylephrine, etc.), α-2 agonists (clonidine and dexmedetomidine), calcium channel blocker (verapamil), magnesium sulfate, etc., were studied with local anesthetics and their isomers...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29284854/clinical-study-to-determine-the-efficacy-of-clonidine-as-an-adjuvant-to-intrathecal-bupivacaine-in-patients-undergoing-cesarean-section
#14
Basavaraj Kallapur, D N Ravikumar, Safiya Imtiaz Shaikh, M Marutheesh
Introduction: Spinal anesthesia with bupivacaine is associated with hypotension and inadequate postoperative analgesia. The addition of clonidine as an adjuvant to intrathecal bupivacaine is beneficial in reducing the dose of the local anesthetic and also provides prolonged postoperative analgesia. Methodology: One hundred and five American Society of Anesthesiologists physical status Classes 1 and 2 parturient women undergoing elective cesarean section were randomly divided into three groups...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29284845/comparison-of-efficacy-of-oral-versus-regional-clonidine-for-postoperative-analgesia-following-ilioinguinal-iliohypogastric-block-in-children-a-prospective-randomized-double-blinded-placebo-controlled-study
#15
Arijit Sardar, Ganga Prasad, Mahesh Kumar Arora, Lokesh Kashyap
Background: Clonidine improves quality and prolongs the duration of analgesia in ilioinguinal/iliohypogastric nerve block when given along with local anesthetic and as well as premedication. The objective of this study was to compare the efficacy of oral and regional clonidine for postoperative analgesia in pediatric population after ilioinguinal/iliohypogastric block. Materials and Methods: Sixty children aged between 1 and 8 years scheduled for elective hernia surgery were randomly allocated to three groups...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29284840/effect-of-clonidine-as-adjuvant-in-thoracic-paravertebral-block-for-patients-undergoing-breast-cancer-surgery-a-prospective-randomized-placebo-controlled-double-blind-study
#16
Nairita Mayur, Anjan Das, Hirak Biswas, Subinay Chhaule, Surajit Chattopadhyay, Tapobrata Mitra, Sandip Roybasunia, Subrata Kumar Mandal
Background and Aims: Postoperative pain after breast cancer surgery is unavoidable. Thoracic paravertebral block (TPVB), a locoregional anesthetic technique, has been proven successful for postoperative pain management in different thoracic surgical procedures, such as thoracotomy, breast cancer surgeries. Clonidine, an adjuvant, in TPVB may enhance the quality and prolong the duration of analgesia. This prospective study was to evaluate the effectiveness of clonidine; administered with TPVB; in addition to conventional local anesthetic solution...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29284837/to-compare-the-effects-of-different-doses-of-dexmedetomidine-on-intrathecal-bupivacaine-in-infraumbilical-surgeries-a-prospective-randomized-double-blind-clinical-study
#17
Shashikala Thuraganur Kapinegowda, Tejesh Channasandra Anandswamy, Vijaya Hanumanthappa Narayanappa, Sachin Kumar, Prashant Hatti
Introduction: Spinal anesthesia is preferred technique of choice in infraumbalical surgeries. Limitation of this technique is shorter duration of analgesia, so various adjuvants have been used with intrathecal bupivacaine such as fentanyl, clonidine, and dexmedetomidine. Dexmedetomidine is a highly selective alpha 2 adrenergic agonist. The aim of our study was to know the effect of different doses of dexmedetomidine on intrathecal bupivacaine. Materials and Methods: The prospective, randomized, double-blind study was conducted in tertiary health care center, on ninety patients of the American Society of Anesthesiology Class I and II, of age group 18-60 years of either sex...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29260011/isolated-pons-involvement-in-posterior-reversible-encephalopathy-syndrome-case-report-and-review-of-the-literature
#18
REVIEW
Mariangela Ferrara, Pietro Di Viesti, Vincenzo Inchingolo, Raffaela Rita Latino, Teresa Popolizio, Salvatore Angelo De Cosmo, Flavia Pugliese, Maurizio Angelo Leone
Background: Posterior Reversible Encephalopathy Syndrome (PRES) is a clinical-radiological syndrome, usually reversible and with a favorable prognosis, which recognizes a variety of etiologies and clinical patterns and is likely due to an impairment in cerebral blood flow autoregulation. It is typically characterized by subcortical, predominantly parieto-occipital, vasogenic brain oedema in patients with acute-subacute neurological symptoms. Infratentorial oedema on neuroimaging has been mostly described in association with the typical supratentorial pattern and seldom as isolated...
March 2017: ENeurologicalSci
https://www.readbyqxmd.com/read/29250815/current-and-emerging-pharmacotherapies-for-cessation-of-tobacco-smoking
#19
Nieves Gómez-Coronado, Adam J Walker, Michael Berk, Seetal Dodd
Tobacco use disorder is a chronic illness. With its high comorbidity rate, it is a major cause of years of life lost or years lived with disability; however, is also considered the most preventable cause of death in developed countries. Since the development of nicotine replacement therapy (NRT) in 1978, treatment options have continued to evolve and expand. Despite this, currently available treatments remain insufficient, with less than 25% of smokers remaining abstinent after one year after treatment. In this article, we review existing and emerging smoking cessation pharmacotherapies, affording a special emphasis on the most promising agents that are currently being investigated...
December 17, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/29248202/clonidine-administration-during-intraoperative-monitoring-for-pediatric-scoliosis-surgery-effects-on-central-and-peripheral-motor-responses
#20
Pedro Calderón, Paul Deltenre, Ida Stany, Jean-Paul Kaleeta Maalu, Magali Stevens, Jean Lamoureux, Michel Bellemans, Sylvie Dujardin, Philippe Van der Linden, Bernard Dachy
OBJECTIVE: To study the effect of clonidine administrated as a co-analgesic during scoliosis surgery, on the neuromonitoring of spinal motor pathways. METHODS: Using standardized intraoperative monitoring, we compared the time course of peripherally and transcranially electrically evoked motor potentials (TcEMEPs) before and after injection of a single bolus of clonidine in children under total intravenous anesthesia (TIVA). MEP data were obtained from 9 patients and somatosensory evoked potentials (SSEPs) were obtained from 2 patients...
December 13, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
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