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https://www.readbyqxmd.com/read/28647739/antipsychotic-induced-dopamine-supersensitivity-psychosis-pharmacology-criteria-and-therapy
#1
Guy Chouinard, Anne-Noël Samaha, Virginie-Anne Chouinard, Charles-Siegfried Peretti, Nobuhisa Kanahara, Masayuki Takase, Masaomi Iyo
The first-line treatment for psychotic disorders remains antipsychotic drugs with receptor antagonist properties at D2-like dopamine receptors. However, long-term administration of antipsychotics can upregulate D2 receptors and produce receptor supersensitivity manifested by behavioral supersensitivity to dopamine stimulation in animals, and movement disorders and supersensitivity psychosis (SP) in patients. Antipsychotic-induced SP was first described as the emergence of psychotic symptoms with tardive dyskinesia (TD) and a fall in prolactin levels following drug discontinuation...
June 24, 2017: Psychotherapy and Psychosomatics
https://www.readbyqxmd.com/read/28646158/metabolic-recovery-of-lipodystrophy-liver-steatosis-and-pancreatic-%C3%AE-cell-proliferation-after-the-withdrawal-of-osi-906
#2
Kazuki Tajima, Jun Shirakawa, Yu Togashi, Shunsuke Yamazaki, Tomoko Okuyama, Mayu Kyohara, Hiromi Konishi, Yasuo Terauchi
Growth factor signaling via insulin receptor (IR) and IGF-1 receptor (IGF1R) plays several important roles in the pathogenesis of metabolic syndrome and diabetes. OSI-906 (linsitinib), an anti-tumor drug, is an orally bioavailable dual inhibitor of IR and IGF1R. To investigate the recovery from metabolic changes induced by the acute inhibition of IR and IGF1R in adult mice, mice were treated with OSI-906 or a vehicle for 7 days and the results were analyzed on the last day of injection (Day 7) or after 7 or 21 days of withdrawal (Day 14 or Day 28)...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28645783/maerua-angolensis-stem-bark-extract-reverses-anxiety-and-related-behaviours-in-zebrafish-involvement-of-gabaergic-and-5-ht-systems
#3
Charles Kwaku Benneh, Robert Peter Biney, Priscilla Kolibea Mante, Augustine Tandoh, Donatus Wewura Adongo, Eric Woode
ETHNOPHARMACOLOGICAL RELEVANCE: Maerua angolensis DC (Capparaceae) has been employed in the management of several central nervous system (CNS) disorders including anxiety. This study evaluated the anxiolytic effects of the petroleum ether/ethyl acetate fraction stem bark extract and its possible mechanism(s) using zebrafish anxiety models. METHODS: Adult zebrafish, tested in the novel tank and light dark tests, have shown by previous authors to be sensitive to the anxiolytic effects of known anxiolytic drugs...
June 20, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28645616/epidemiological-and-sociodemographic-factors-associated-with-complicated-alcohol-withdrawal-syndrome
#4
R Monte-Secades, M Blanco-Soto, J A Díaz-Peromingo, A Sanvisens-Bergé, M C Martín-González, A Barbosa, B Rosón-Hernández, M A Tejero-Delgado, R Puerta-Louro, R Rabuñal-Rey
OBJECTIVES: To analyse the influence of epidemiological and sociodemographic factors in complicated alcohol withdrawal syndrome (AWS). MATERIAL AND METHODS: A multicentre, observational prospective study was conducted on consecutively added patients with AWS hospitalised in internal medicine departments. We recorded sociodemographic, epidemiological, clinical and progression data. Complicated AWS was defined as that which progressed with seizures or delirium tremens...
June 20, 2017: Revista Clínica Española
https://www.readbyqxmd.com/read/28642988/development-of-pulmonary-hypertension-during-treatment-with-diazoxide-a-case-series-and-literature-review
#5
Matthew R Timlin, Alexander B Black, Heather M Delaney, Renée I Matos, Candace S Percival
Congenital hyperinsulinism (CHI) is the most common cause of persistent hypoglycemia in infancy. The mainstay of medical management for CHI is diazoxide. Diazoxide inhibits insulin release from the pancreas, but also causes smooth muscle relaxation and fluid retention so it is typically given with chlorothiazide. In July 2015, the FDA issued a drug safety communication warning that pulmonary hypertension (PH) had been reported in 11 infants being treated with diazoxide and that the PH resolved with withdrawal of diazoxide...
June 22, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28642856/longitudinal-change-in-trabecular-bone-score-during-and-after-treatment-of-osteoporosis-in-postmenopausal-korean-women
#6
Mi-Seon Shin, Eun-Hee Cho, Ha Young Kim
BACKGROUND: The aim of this study was to evaluate the longitudinal changes of trabecular bone score (TBS) during and after bisphosphonate (BP) treatment in postmenopausal Korean women with osteoporosis. METHODS: We analyzed 191 patients who took BP and underwent bone mineral density (BMD) test for the period from January 2010 to December 2015. The mean follow up period during treatment and after treatment was 22.8 months and 18 months, respectively. The TBS and BMD values were evaluated by the percent changes relative to the baseline...
May 2017: Journal of Bone Metabolism
https://www.readbyqxmd.com/read/28642232/a-single-amino-acid-residue-at-transmembrane-domain-4-of-the-alpha-subunit-influences-carisoprodol-direct-gating-efficacy-at-gabaa-receptors
#7
Manoj Kumar, Manish Kumar, John Freund, Glenn H Dillon
The muscle relaxant carisoprodol (CSP, trade name Soma) has recently been controlled at the federal level as a Schedule IV drug due to its high abuse potential and consequences of misuse, such as withdrawal syndrome, delusions, seizures and even death. Recent work has shown that carisoprodol can directly gate and allosterically modulate the GABAA receptor. These actions are subunit-dependent; compared to other GABAA receptors, carisoprodol has nominal direct gating effects in α3β2γ2receptors. Here, using site-directed-mutagenesis and whole cell patch clamp electrophysiology in transiently transfected HEK293 cells, we examined the role of GABAA receptor α subunit transmembrane domain 4 (TM4) amino acids in direct gating and allosteric modulatory actions of carisoprodol...
June 22, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28640208/associations-of-drug-lipophilicity-and-extent-of-metabolism-with-drug-induced-liver-injury
#8
Kristin McEuen, Jürgen Borlak, Weida Tong, Minjun Chen
Drug-induced liver injury (DILI), although rare, is a frequent cause of adverse drug reactions resulting in warnings and withdrawals of numerous medications. Despite the research community's best efforts, current testing strategies aimed at identifying hepatotoxic drugs prior to human trials are not sufficiently powered to predict the complex mechanisms leading to DILI. In our previous studies, we demonstrated lipophilicity and dose to be associated with increased DILI risk and, and in our latest work, we factored reactive metabolites into the algorithm to predict DILI...
June 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28639542/fluticasone-propionate-and-fluticasone-propionate-salmeterol-multidose-dry-powder-inhalers-compared-with-placebo-for-persistent-asthma
#9
L D Sher, G Yiu, A Sakov, S Liu, C F Caracta
BACKGROUND: A novel, inhalation-driven, multidose dry powder inhaler (MDPI) has been developed, which allows for lowerdoses of fluticasone propionate (Fp) and Fp/salmeterol (FS) for the treatment of patients with asthma. OBJECTIVE: This phase III, multicenter, double-blind, parallel-group study (NCT02141854) evaluated the efficacy and safetyof Fp MDPI and FS MDPI versus placebo MDPI. METHODS: Patients aged greater than or equal to 12 years with persistent asthma who previously took an inhaled corticosteroid with or without a long-acting beta-agonist entered a 14- to 21-day run-in period, during which they received single-blind, low-dose Fp MDPI 50 microgram (1 inhalation twice daily [b...
June 21, 2017: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/28637741/the-closed-trial-clonidine-compared-with-midazolam-for-sedation-of-paediatric-patients-in-the-intensive-care-unit-study-protocol-for-a-multicentre-randomised-controlled-trial
#10
Antje Neubert, Manuel Alberto Baarslag, Monique van Dijk, Joost van Rosmalen, Joseph F Standing, Yucheng Sheng, Wolfgang Rascher, Deborah Roberts, Jackie Winslade, Louise Rawcliffe, Sara M Hanning, Tuuli Metsvaht, Viviana Giannuzzi, Peter Larsson, Pavla Pokorná, Alessandra Simonetti, Dick Tibboel
INTRODUCTION: Sedation is an essential part of paediatric critical care. Midazolam, often in combination with opioids, is the current gold standard drug. However, as it is a far-from-ideal agent, clonidine is increasingly being used in children. This drug is prescribed off-label for this indication, as many drugs in paediatrics are. Therefore, the CLOSED trial aims to provide data on the pharmacokinetics, safety and efficacy of clonidine for the sedation of mechanically ventilated patients in order to obtain a paediatric-use marketing authorisation...
June 21, 2017: BMJ Open
https://www.readbyqxmd.com/read/28635560/sorafenib-in-japanese-patients-with-locally-advanced-or-metastatic-medullary-thyroid-carcinoma-and-anaplastic-thyroid-carcinoma
#11
Yasuhiro Ito, Naoyoshi Onoda, Ken-Ichi Ito, Iwao Sugitani, Shunji Takahashi, Iku Yamaguchi, Koki Kabu, Katsuya Tsukada
BACKGROUND: Therapeutic options for treating advanced or metastatic medullary thyroid carcinoma (MTC) and anaplastic thyroid carcinoma (ATC) are still limited in Japan even though vandetanib for MTC, and lenvatinib for MTC and ATC have been approved. Sorafenib is an oral multikinase inhibitor approved for the treatment of patients with radioactive iodine-refractory (RAI-R) differentiated thyroid cancer (DTC). We conducted an uncontrolled, open-label, multicenter, single-arm, phase 2 clinical study to evaluate the safety and efficacy of sorafenib in Japanese patients with MTC and ATC...
June 21, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28635140/noradrenergic-signaling-in-the-vta-modulates-cocaine-craving
#12
Wojciech Barnaba Solecki, Klaudia Szklarczyk, Kamil Pradel, Krystyna Kwiatkowska, Grzegorz Dobrzański, Ryszard Przewłocki
Exposure to drug-associated cues evokes drug-seeking behavior and is regarded as a major cause of relapse. Conditional stimulus upregulates noradrenaline (NA) system activity, but the drug-seeking behavior depends particularly on phasic dopamine signaling downstream from the ventral tegmental area (VTA). The VTA dopamine-ergic activity is regulated via the signaling of alpha1 -adrenergic and alpha2 -adrenergic receptors (α1 -ARs and α2 -ARs); thus, the impact of the conditional stimulus on drug-seeking behavior might involve NAergic signaling in the VTA...
June 21, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28635134/locomotor-sensitization-is-expressed-by-ghrelin-and-d1-dopamine-receptor-agonist-in-the-nucleus-accumbens-core-in-amphetamine-pre-exposed-rat
#13
Ju Kyong Jang, Wha Young Kim, Bo Ram Cho, Jung Won Lee, Jeong-Hoon Kim
Ghrelin modulates mesolimbic dopaminergic pathways in the brain in addition to its role in feeding. We investigated what roles ghrelin in the nucleus accumbens (NAcc) core may play in mediating locomotor activating effects of amphetamine (AMPH). First, when rats were administered with AMPH (1 mg/kg, i.p.) following a bilateral microinjection of ghrelin (0.1 or 0.5 μg/side) into the NAcc core, their locomotor activity was significantly enhanced, while these effects were blocked by co-microinjection of ghrelin receptor antagonist (0...
June 21, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28634406/enhancing-kcc2-function-counteracts-morphine-induced-hyperalgesia
#14
Francesco Ferrini, Louis-Etienne Lorenzo, Antoine G Godin, Miorie Le Quang, Yves De Koninck
Morphine-induced hyperalgesia (MIH) is a severe adverse effect accompanying repeated morphine treatment, causing a paradoxical decrease in nociceptive threshold. Previous reports associated MIH with a decreased expression of the Cl(-) extruder KCC2 in the superficial dorsal horn (SDH) of the spinal cord, weakening spinal GABAA/glycine-mediated postsynaptic inhibition. Here, we tested whether the administration of small molecules enhancing KCC2, CLP257 and its pro-drug CLP290, may counteract MIH. MIH was typically expressed within 6-8 days of morphine treatment...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28633036/recent-advances-in-understanding-multiple-myeloma
#15
REVIEW
Parameswaran Hari
There have been major recent advancements in the understanding and management of multiple myeloma which in turn has led to unprecedented survival outcomes for patients. Diagnostic and response criteria have been recently revised. Our understanding of clonal progression, evolution, and clonal tides will inform therapeutic choices and appropriate treatment for patients. Response rates to initial induction with modern triplet therapies containing proteasome inhibitors and immunomodulators have made this approach the global standard for initial treatment...
June 13, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28632810/hydralazine-associated-cutaneous-casculitis-presenting-with-aerodigestive-tract-involvement
#16
Laura E Levin, Cynthia Magro, James Horowitz, Joanna Harp
Hydralazine-induced small vessel vasculitis is a rare entity with a limited number of cases reported in the dermatologic literature. A characteristic pattern of acral pseudoembolic vesiculopustules with necrosis and ulceration has been suggested along with involvement of the aerodigestive tract, indicating mucosal involvement is an important feature of this disease. We report the case of a patient with hydralazine-induced vasculitis who exemplified this characteristic presentation associated with severe involvement of the aerodigestive tract and gastrointestinal tract bleeding...
May 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28631527/buprenorphine-naloxone-versus-methadone-and-lofexidine-in-community-stabilisation-and-detoxification-a-randomised-controlled-trial-of-low-dose-short-term-opiate-dependent-individuals
#17
Fergus D Law, Alison M Diaper, Jan K Melichar, Simon Coulton, David J Nutt, Judy S Myles
Buprenorphine/naloxone, methadone and lofexidine are medications with utility in the treatment of opiate withdrawal. We report the first randomised controlled trial to compare the effects of these two medications on withdrawal symptoms and outcome during opiate induction/stabilisation and detoxification. A double-blind randomised controlled trial was conducted in an outpatient satellite clinic of a specialist drug service. Eighty opiate dependent individuals meeting DSM-IV criteria for opiate dependence, using ⩽ ½ g heroin smoked/chased or ¼ g heroin injected or ⩽ 30mg methadone, with ⩽ 3 years of opioid dependency, underwent a short-term opiate treatment programme involving induction/stabilisation on methadone 30mg or buprenorphine/naloxone 4mg/1mg, followed by detoxification (where the methadone group was assisted by lofexidine)...
June 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28631421/impact-of-synthetic-cannabinoids-on-the-duration-of-opioid-related-withdrawal-and-craving-among-patients-of-addiction-clinics-in-kazakhstan-a-prospective-case-control-study
#18
Mariya Prilutskaya, Francesco Saverio Bersani, Ornella Corazza, Sergey Molchanov
OBJECTIVE: The aim of the study was to prospectively assess whether regular use of synthetic cannabinoids (SCs) affects the duration of opioid-related withdrawal and craving symptoms in patients undergoing drug detoxification treatments. METHODS: Patients (n = 193) with opioid use disorder, among which 47 patients are regularly using SCs, underwent integrated drug detoxification therapies. The Clinical Opiate Withdrawal Scale and a specific visual analogue scale were used to assess opioid withdrawal and craving symptoms over time...
June 20, 2017: Human Psychopharmacology
https://www.readbyqxmd.com/read/28630772/severe-rhabdomyolysis-due-to-presumed-drug-interactions-between-atorvastatin-with-amlodipine-and-ticagrelor
#19
Iouri Banakh, Kavi Haji, Ross Kung, Sachin Gupta, Ravindranath Tiruvoipati
Atorvastatin and ticagrelor combination is a widely accepted therapy for secondary prevention of ischaemic heart disease. However, rhabdomyolysis is a well-known rare side effect of statins which should be considered when treatments are combined with cytochrome P450 3A4 enzyme inhibitors. We report a case of atorvastatin and ticagrelor associated severe rhabdomyolysis that progressed to multiorgan failure requiring renal replacement therapy, inotropes, intubation, and mechanical ventilation. Despite withdrawal of the precipitating cause and the supportive measures including renal replacement therapy, creatinine kinase increased due to ongoing rhabdomyolysis rapidly progressing to upper and lower limbs weakness...
2017: Case Reports in Critical Care
https://www.readbyqxmd.com/read/28630641/amisulpride-withdrawal-dyskinesia-a-case-report
#20
Yu-Chi Lo, Ying-Chieh Peng
BACKGROUND: The effects of antipsychotic drug withdrawal have been inadequately studied. Case reports have described dyskinesia occurring in patients with several antipsychotics withdrawn, but studies on amisulpride withdrawal dyskinesia are lacking. CASE PRESENTATION: A 63-year-old man, who was diagnosed with schizophrenia at age 49, received amisulpride treatment since age 62. The dosage of amisulpride was reduced from 200 to 50 mg/day because of occurrence of akathisia during one admission...
2017: Annals of General Psychiatry
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