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Letteratura scientifica selezionata sul tema "Ephedrine"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 29 luglio 2024

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Articoli di riviste sul tema "Ephedrine"

1

Ito, Kaori, Takashi Kikuchi, Kanako Ikube, Kouharu Otsuki, Kazuo Koike e Wei Li. "LC-MS Profiling of Kakkonto and Identification of Ephedrine as a Key Component for Its Anti-Glycation Activity". Molecules 28, n. 11 (29 maggio 2023): 4409. http://dx.doi.org/10.3390/molecules28114409.

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A total of 147 oral Kampo prescriptions, which are used clinically in Japan, were evaluated for their anti-glycation activity. Kakkonto demonstrated significant anti-glycation activity, prompting further analysis of its chemical constituents using LC-MS, which revealed the presence of two alkaloids, fourteen flavonoids, two but-2-enolides, five monoterpenoids, and four triterpenoid glycosides. To identify the components responsible for its anti-glycation activity, the Kakkonto extract was reacted with glyceraldehyde (GA) or methylglyoxal (MGO) and analyzed using LC-MS. In LC-MS analysis of Kakkonto reacted with GA, the peak intensity of ephedrine was attenuated, and three products from ephedrine-scavenging GA were detected. Similarly, LC-MS analysis of Kakkonto reacted with MGO revealed two products from ephedrine reacting with MGO. These results indicated that ephedrine was responsible for the observed anti-glycation activity of Kakkonto. Ephedrae herba extract, which contains ephedrine, also showed strong anti-glycation activity, further supporting ephedrine’s contribution to Kakkonto’s reactive carbonyl species’ scavenging ability and anti-glycation activity.

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2

Xiu, Li-Mei, Akira B. Miura, Kazuhiko Yamamoto, Takao Kobayashi, Qing-Hua Song, Hajime Kitamura e Jong-Chol Cyong. "Pancreatic Islet Regeneration by Ephedrine in Mice with Streptozotocin-induced Diabetes". American Journal of Chinese Medicine 29, n. 03n04 (gennaio 2001): 493–500. http://dx.doi.org/10.1142/s0192415x01000514.

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In this experiment, we investigated the effects of crude Ephedrae herba, alkaloid extract of Ephedrae herbal and 1-ephedrine, a major alkaloid component, on diabetic mice induced by streptozotocin (STZ). The alkaloid extract and 1-ephedrine showed suppression on the hyperglycemia. The suppression by Ephedrae herba of hyperglycemia may therefore be due to 1-ephedrine. Furthermore, we found that Ephedrae herba, alkaloid and 1-ephedrine promoted the regeneration of pancreas islets following atrophy induced by STZ. It is therefore suggested that Ephedrae herba may regenerate atrophied pancreatic islets, restore the secretion of insulin, and thus correct hyperglycemia.

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3

Kim, Eunjoo, Yun-Jin Lee e Young-Woo Lim. "Narrative Review on the Safety of Mahuang and Ephedrine in the Treatment of Obesity: Focused on Liver". Nubebe Mibyeong Research Institute 5, n. 1 (31 maggio 2024): 45–53. http://dx.doi.org/10.37928/kjsm.2024.5.1.45.

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Objectives The purpose of this study is to examine whether the use of Ephedrae herba and Ephedrine in obesity treatment is safe for the liver. Methods Toxicology studies and randomized controlled trials (RCTs) from systematic review (SR), meta-analysis related to Ephedrae herba or Ephedrine, which refer to liver function were collected through Pubmed and RISS databases. Results There were no findings that hepatotoxicity was induced by Ephedrae herba in the 2-week acute, 4-week subacute, and 13-week repeated administration toxicology studies. In the RCT studies of Ephedrae herba, Ephedrine, or herbal medicine including Ephedrae herba, there were no significant changes in liver function levels. Conclusions This study suggests that it is difficult to find clear evidence that Ephedrae herba and Ephedrine cause liver injury.

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4

Li, Yue-Chiun, Chia-Hung Wu, Thi Ha Le, Qingjun Yuan, Luqi Huang, Guo-Fen Chen, Mei-Lin Yang et al. "A Modified 1H-NMR Quantification Method of Ephedrine Alkaloids in Ephedrae Herba Samples". International Journal of Molecular Sciences 24, n. 14 (10 luglio 2023): 11272. http://dx.doi.org/10.3390/ijms241411272.

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A previous 1H-NMR method allowed the quantification of ephedrine alkaloids; however, there were some disadvantages. The cyclized derivatives resulted from the impurities of diethyl ether were identified and benzene was selected as the better extraction solvent. The locations of ephedrine alkaloids were confirmed with 2D NMR. Therefore, a specific 1H-NMR method has been modified for the quantification of ephedrine alkaloids. Accordingly, twenty Ephedrae Herba samples could be classified into three classes: (I) E. sinica-like species; (II) E. intermedia-like species; (III) others (lower alkaloid contents). The results indicated that ephedrine and pseudoephedrine are the major alkaloids in Ephedra plants, but the concentrations vary greatly determined by the plant species and the collection locations.

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5

Hung, Yu-Chun, Yi-Chuan Kau, Anthony M. Zizza, Thomas Edrich, David Zurakowski, Robert R. Myers, Ging Kuo Wang e Peter Gerner. "Ephedrine Blocks Rat Sciatic Nerve In Vivo and Sodium Channels In Vitro". Anesthesiology 103, n. 6 (1 dicembre 2005): 1246–52. http://dx.doi.org/10.1097/00000542-200512000-00021.

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Background The sympathomimetic drug ephedrine has been used intrathecally as the sole local anesthetic for labor and delivery. Because ephedrine may be a useful adjuvant to local anesthetics, the authors investigated the local anesthetic properties of ephedrine in a rat sciatic nerve block model and the underlying mechanism in cultured cells stably expressing Na channels. Methods After approval of the animal protocol, the sciatic nerves of anesthetized rats were exposed by lateral incision of the thighs, 0.2 ml ephedrine at 0.25, 1, 2.5, or 5% and/or bupivacaine at 0.125% was injected, and the wound was closed. Motor and sensory/nociceptive functions were evaluated by the force achieved by pushing against a balance and the reaction to pinch, respectively. The whole cell configuration of the patch clamp technique was used to record Na currents from human embryonal kidney cells stably transfected with Nav1.4 channels. Results The nociception blockade was significantly longer than the motor blockade at test doses of 2.5 and 5% of ephedrine, or when 1% ephedrine was combined with 0.125% bupivacaine (analysis of variance with repeated measures, P < 0.001, n = 8/group). In vitro, the 50% inhibitory concentrations of ephedrine at -150 and -60 mV were 1,043 +/- 70 and 473 +/- 13 mum, respectively. High-frequency stimulation revealed a use-dependent block of 18%, similar to most local anesthetics. Conclusions Because ephedrine's properties are at least partly due to Na channel blockade, detailed histopathologic investigations are justified to determine the potential of ephedrine as an adjuvant to clinically used local anesthetics.

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6

Napolitano, Antonella, Peter R. Murgatroyd, Nick Finer, Elizabeth K. Hussey, Robert Dobbins, Steve O'Rahilly e Derek J. R. Nunez. "Assessment of Acute and Chronic Pharmacological Effects on Energy Expenditure and Macronutrient Oxidation in Humans: Responses to Ephedrine". Journal of Obesity 2011 (2011): 1–8. http://dx.doi.org/10.1155/2011/210484.

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Evidence of active brown adipose tissue in human adults suggests that this may become a pharmacological target to induce negative energy balance. We have explored whole-body indirect calorimetry to detect the metabolic effects of thermogenic drugs through administration of ephedrine hydrochloride and have assessed ephedrine's merits as a comparator compound in the evaluation of novel thermogenic agents. Volunteers randomly given ephedrine hydrochloride 15 mg QID(n=8)or placebo(n=6)were studied at baseline and after 1-2 and 14-15 days of treatment. We demonstrate that overnight or 23-hour, 2% energy expenditure (EE) and 5% fat (FO) or CHO oxidation effects are detectable both acutely and over 14 days. Compared to placebo, ephedrine increased EE and FO rates overnight (EE 63 kJ day 2, EE 105 kJ, FO 190 kJ, day 14), but not over 23 h. We conclude that modest energy expenditure and fat oxidation responses to pharmacological interventions can be confidently detected by calorimetry in small groups. Ephedrine should provide reliable data against which to compare novel thermogenic compounds.

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7

&NA;. "Ephedrine". Reactions Weekly &NA;, n. 713 (agosto 1998): 8. http://dx.doi.org/10.2165/00128415-199807130-00022.

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8

&NA;. "Ephedrine". Reactions Weekly &NA;, n. 1356 (giugno 2011): 16. http://dx.doi.org/10.2165/00128415-201113560-00052.

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9

&NA;. "Ephedrine". Reactions Weekly &NA;, n. 569 (settembre 1995): 7. http://dx.doi.org/10.2165/00128415-199505690-00016.

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10

&NA;. "Ephedrine". Reactions Weekly &NA;, n. 591 (marzo 1996): 8. http://dx.doi.org/10.2165/00128415-199605910-00020.

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Tesi sul tema "Ephedrine"

1

Boyes, A. L. "Synthesis of the talaromycins A, B, C and E and synthetic studies towards ephedrine C". Thesis, University of Southampton, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233899.

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2

Link, Jeanne Meyers. "Mixed-mode chromatographic separation and whole column radiation detection to improve sensitivity in radiometabolite analysis : application to (Carbon-11)-meta-hydroxyephedrine in plasma /". Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/8578.

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3

Verner, Jennifer Joan. "Formulation and dissolution assessment of a novel repeat action tablet containing a decongestant and an antihistamine". Thesis, Rhodes University, 2001. http://hdl.handle.net/10962/d1003276.

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Controlled and sustained release dosage forms are the focus of worldwide research. These dosage forms facilitate patient compliance by simplifying the dosage regimen, and decrease the risk of adverse effects by reducing large fluctuations in the plasma concentration of the drug. The objective of this study was to formulate a repeat-action tablet to provide a sustained release dose of pseudoephedrine sulfate (PSS), and an immediate release dose of both PSS and loratadine. The release profile was compared to that of a commercially available preparation, Clarityne-D®. This formulation developed presents a novel mechanism of sustaining the release of PSS. The prototype tablet consisted of a sustained release core coated with an ethylcellulose dispersion to introduce a lag phase into the release profile and a second outer film coat incorporating PSS and loratadine. The core comprised an ethylcellulose granulation of PSS compressed into a hydroxypropyl methylcellulose matrix. The release of PSS from prototypes was assessed using USP Apparatus 3, as this apparatus was more representative of in vivo conditions and discriminated more effectively between the different tablet compositions produced during development. All dissolution samples were analysed for PSS and loratadine using validated highperformance liquid chromatographic methods. The prototype sustained release cores were found to be more resistant than the reference product to elevated temperature and humidity (40°C/87% RH) with fewer observed changes to the release profiles following storage for up to six months. This study was a feasibility study to obtain proof of concept. The release profile obtained from the prototype tablets was similar (f₂ = 50.0) to that of the reference product. Further development and optimisation of this dosage form is necessary, including evaluation of the choice of hydrophobic polymer, the effect of compression force and tablet geometry and characterisation of the release mechanism from the coated matrix. Assessment of these factors is necessary in order to optimise the formulation with respect to the desired therapeutic objectives.

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Pasternak, Harley. "The effect of ingesting caffeine, ephedrine, and their combination on repeated strength performance". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0016/MQ53354.pdf.

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5

Hutchison, Panee. "The development of ephedrine-based chiral linkers for asymmetric reactions on solid phase". Thesis, University of Glasgow, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402748.

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6

Shah, Beena. "A study into the use of ephedrine, immobilised on a silica support and its use in asymmetric alkynylation reactions". Thesis, Kingston University, 2015. http://eprints.kingston.ac.uk/32206/.

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This work describes the preparation of an immobilised ephedrine silica supported catalyst and its application in asymmetric synthesis. (1R,2S)-(-)-Ephedrine is a controlled substance, whose use in synthesis is closely monitored by a licence regulated by the Medicines and Healthcare products Regulatory Agency (MHRA). One way of reducing the demand for controlled substances as catalysts is to tether them onto a support medium so that afier use they may be recovered by filtration, washed and reactivated, if necessary, dried and then reused. In this project, (IR,ZS)-(-)-cphedrine was tethered onto a functionalised silica support and tested for its use in asymmetric alkynylation reactions involving a range of aromatic aldehydes and a terminal alkyne, phenylacetylene. The loading of the ephedrine on the supported catalyst was characterised by both elemental analysis and thermogravimetric analysis (TGA) due to the nature of the support material. The immobilised ephedrine catalyst was evaluated in asymmetric alkynylation reactions and was shown to provide good enantioselectivity (up to 92% for (R)-(+)- l ,3-diphenylprop-2-yn-l-ol) and high yields for the secondary propargylic alcohols (up to 97%). The use of the immobilised ephedrine catalyst in asymmetric alkynylation reactions was assumed to be novel. The results of the newly formed secondary propargylic alcohols proved to be comparable to those achieved by homogeneous systems. The secondary propargylic alcohols were analysed using a wide range of spectroscopic techniques such as nuclear magnetic resonance (NMR) spectroscopy, gas chromatography- mass spectrometry (GC-MS), optical rotation and high performance liquid chromatography (HPLC). Due to the restrictions placed on ephedrine, it was important to test the recyclability of the tethered catalyst to reduce the amount of the regulated drug in circulation. The catalyst demonstrated the ability to be recovered quantitatively from the reaction mixture using a simple filtration and then recycled in further asymmetric alkynylation reactions for three cycles before the yield was affected. In addition to the study, a novel tethering of ephedrine derivatives onto a silica support was investigation and its use in asymmetric alkynylation reactions explored. This was undertaken in an effort to optimise and improve upon the results obtained from N-methylcphedrine alone. Our initial results showed that it is possible to tether ephedrine derivatives onto a silica support and then employ them in asymmetric synthesis, thus opening up the possibility to use controlled ephedrine more efficiently.

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7

Fabre, Anne. "Ephédrine : utilisation thérapeutique et en pratique sportive ; contrôle antidopage". Bordeaux 2, 1996. http://www.theses.fr/1996BOR2P029.

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8

Erkinaro, T. (Tiina). "Fetal and placental haemodynamic responses to hypoxaemia, maternal hypotension and vasopressor therapy in a chronic sheep model". Doctoral thesis, University of Oulu, 2006. http://urn.fi/urn:isbn:9514281659.

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Abstract Knowledge of the effects of maternally administered vasopressors on human fetal and placental haemodynamics is sparse and limited to elective Caesarean deliveries in uncomplicated pregnancies. We hypothesized that, after short-term fetal hypoxaemia, which activates fetal cardiovascular compensatory mechanisms, treatment of maternal hypotension with ephedrine or phenylephrine results in divergent responses in fetal and placental haemodynamics. Chronically instrumented near-term sheep fetuses with either normal placental function or increased placental vascular resistance following placental embolization were exposed to two subsequent periods of decreased fetal oxygenation caused by maternal hypoxaemia and epidural-induced hypotension. The fetuses that underwent placental embolization were also chronically hypoxaemic. Fetal and placental haemodynamics were assessed by invasive techniques and by noninvasive Doppler ultrasonography. Our results show that umbilical artery blood flow velocity waveforms cannot be used to derive information of fetal cardiac function. Furthermore, the changes in placental volume blood flows and vascular resistances caused by maternal vasopressor treatment cannot be reliably recognized based on uterine and umbilical artery pulsatility index values. In response to acute hypoxaemia, a fetus with normal placental function redistributes its right ventricular cardiac output from the pulmonary to the systemic circulation and is able to increase its combined cardiac output, with a concomitant relative decrease in the net forward flow through the aortic isthmus. However, fetal haemodynamic responses to subsequent hypoxaemic insults may vary. Furthermore, the compensatory responses of fetuses with increased placental vascular resistance differ from those of normal fetuses. In these fetuses, repeated episodes of a further decrease in oxygenation lead to lactataemia. The effects of ephedrine on uteroplacental and umbilicoplacental circulations were more favourable than those of phenylephrine. Ephedrine restored the changes in fetal cardiovascular haemodynamics caused by maternal hypotension to the baseline conditions in both embolized and nonembolized fetuses. Phenylephrine did not reverse fetal pulmonary vasoconstriction or the relative decrease in the net forward flow through the aortic isthmus. Moreover, fetal left ventricular function was impaired by phenylephrine. Although no significant differences in fetal acid-base status were observed in fetuses with normal placental function, the lactate concentrations of the embolized fetuses increased further when maternal hypotension was treated with phenylephrine.

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Jonsson, Karin. "Flickors bruk av och attityd till illegala viktminskningspreparat. : En enkätundersökning riktad till flickor i årskurs tre på gymnasiet". Thesis, Karlstads universitet, Fakulteten för samhälls- och livsvetenskaper, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-7302.

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Newspaper articles and media have shown that the use of illegal weight loss compounds, such as ephedrine and Melanotan, is becoming more common among adolescent girls, who are at risk of becoming a new group of addicts. These girls are rarely aware of the risks that the use of these compounds entails and the consequences that could adversely affect their bodies, mentally and physically. The aim of this paper was to investigate the use of and attitudes towards illegal weight loss compounds amongst girls in year three, at Swedish upper secondary schools. In order to do that, a questionnaire was sent out to 120 girls in five different high schools, with varying college preparatory and vocational program directions. My research shows that the use of illegal weight loss compounds, particularly ephedrine, was found among girls in year three, at upper secondary schools. Seven percent of the girls claimed they use, primarily, ephedrine. This result exceeds earlier studies findings on boys' use of anabolic androgenic steroids (AAS). Throughout the survey a sense of how common the use of and attitudes towards illegal weight loss compounds were amongst these girls was formed. The girls' critical views of their bodies permeate my research, whereas almost half of all girls are experiencing dissatisfaction with their body weight and the majority of the girls want to lose body weight. Regarding the girls' attitudes towards the use of illegal weight loss compounds, one result accounted that almost half of all girls could think of using one if it guaranteed them to be thinner. My research also shows that more information needs to be targeted towards young girls; in order to make them conscious about the dangers of these illegal weight loss compounds.
Tidningsartiklar och media har belyst att bruk av illegala viktminskningspreparat såsom efedrin och Melanotan blir allt mer vanligt bland unga flickor och som riskerar att bli en ny grupp missbrukare. Dessa flickor är sällan medvetna om riskerna och följderna som negativt kan påverka deras kroppar både psykiskt och fysiskt vid bruk av dessa preparat. Syftet med detta examensarbete var att undersöka förekomsten av bruk och attityd till illegala viktminskningspreparat bland flickor i årskurs tre på gymnasiet. För att kunna ge svar på syftet utfördes en enkätundersökning på 120 flickor på fem olika gymnasieskolor, med varierande studieförberedande och yrkesförberedande programinriktning. Genom undersökningen skapades en uppfattning om hur förekommande bruket av och attityder till illegala viktminskningspreparat var bland flickorna. Min enkätundersökning visar att 7 % av respondenterna har använt ett illegalt viktminskningspreparat, främst efedrin. Detta resultat överstiger tidigare undersökningars och studiers resultat avseende pojkars bruk av anabola androgena steroider (AAS). Flickornas kritiska syn på sina kroppar genomsyrar min undersökning då nästan hälften upplever missnöje med sin kroppsvikt och majoriteten av flickorna önskar att gå ned i vikt. Avseende flickornas attityd gällande bruk av illegala viktminskningspreparat svarade nästan hälften att de inte är främmande till ett bruk ifall det garanterade dem att bli smala. Min undersökning visar också att mer information behöver riktas mot unga flickor för att medvetandegöra dem om farorna av dessa illegala viktminskningspreparat.

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Adams, Samantha. "A randomised comparison of bolus phenylephrine and ephedrine for the management of spinal hypotension in patients with severe preeclampsia and a non-reassuring fetal heart rate trace". Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29804.

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Background: Studies in healthy patients undergoing elective caesarean delivery show that ephedrine used for spinal hypotension is associated with increased fetal acidosis compared with phenylephrine. This has not been investigated prospectively in severe preeclampsia. Methods: Patients with severe preeclampsia requiring caesarean delivery for a non- reassuring fetal heart tracing were randomised to receive bolus ephedrine (7.5-15 mg) or phenylephrine (50-100 μg) for spinal hypotension. The primary outcome was umbilical arterial base deficit. Secondary outcomes were umbilical arterial (UA) and venous (UV) pH and lactate level, venous base deficit, and Apgar scores. Results: A total of 133 women were included;; 64 required vasopressor treatment and were randomised to 2 groups of 32 with similar patient characteristics. Pre- delivery blood pressure changes were similar in the 2 groups. There was no difference in mean [SD] UA base deficit (-4.9 [3.7] vs -6.0 [4.6] mmol·L⁻¹ for ephedrine and phenylephrine respectively;; P = 0.29). Mean [SD] pH (UA and UV) and lactate levels were also similar between groups (7.25 [0.08] vs 7.22 [0.10], 7.28 [0.07] vs 7.27 [0.10], and 3.41 [2.18] vs 3.28 [2.44] mmol·L⁻¹ respectively). In addition, UV PO₂ was higher in the ephedrine group (2.8 [0.7] vs 2.4 [0.62]) kPa, P = 0.02). There was no difference in 1- or 5-minute Apgar scores, numbers of neonates with 1-minute Apgar scores < 7 (10/32 [31%] vs 12/32 [38%]), or with a pH < 7.2 (6/31 [19%] vs 8/29 [28%]). Conclusions: In patients with severe preeclampsia and fetal compromise, fetal acid-base status is independent of the use of bolus ephedrine vs phenylephrine to treat spinal hypotension.

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Libri sul tema "Ephedrine"

1

Pasternak, Harley. The effect of ingesting caffeine, ephedrine, and their combination on repeated strength performance. Ottawa: National Library of Canada, 2000.

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2

Parker, Philip M., e James N. Parker. Pseudoephedrine: A medical dictionary, bibliography and annotated research guide to Internet references. San Diego, CA: ICON Health Publications, 2004.

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Parker, Philip M., e James N. Parker. Sudafed: A medical dictionary, bibliography, and annotated research guide to internet references. San Diego, CA: ICON Health Publications, 2004.

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4

United States. Congress. House. Committee on Energy and Commerce. Domestic Chemical Diversion Control Act of 1993: Report ( to accompany H.R. 3216 ... referred jointly to the Committee on Energy and Commerce and the Committee on the Judiciary) (including cost estimate of the Congressional Budget Office). [Washington, D.C.?: U.S. G.P.O., 1993.

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5

United States. Congress. House. Committee on Energy and Commerce. Domestic Chemical Diversion Control Act of 1993: Report ( to accompany H.R. 3216 ... referred jointly to the Committee on Energy and Commerce and the Committee on the Judiciary) (including cost estimate of the Congressional Budget Office). [Washington, D.C.?: U.S. G.P.O., 1993.

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6

Magill, Barbara S. Workplace privacy: Real answers and practical solutions. 2^a ed. Washington, D.C: Thomson Publishing Group, 2007.

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7

Office, General Accounting. Dietary supplements: Uncertainties in analyses underlying FDA's proposed rule on ephedrine alkaloids : report to the Chairman and Ranking Minority Member, Committee on Science, House of Representatives. Washington, D.C. (P.O. Box 37050, Washington, D.C. 20013): The Office, 1999.

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8

Blokdijk, G. J. Ephedrine Sulfate; A Clear and Concise Reference. CreateSpace Independent Publishing Platform, 2018.

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9

Combat Methamphetamine Enhancement Act of 2009: Report (to accompany H.R. 2923) (including cost estimate of the Congressional Budget Office). [Washington, D.C: U.S. G.P.O., 2010.

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10

Scanlon, William, e Nye Stevens. Dietary Supplements: Uncertainties in Analyses Underlying Fdaªs Proposed Rule on Ephedrine Alkaloids. Diane Pub Co, 1999.

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Capitoli di libri sul tema "Ephedrine"

1

Wang, Jin-Hua, Xiu-Ying Yang e Guan-Hua Du. "Ephedrine". In Natural Small Molecule Drugs from Plants, 231–35. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8022-7_38.

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2

de Groot, Anton C. "Ephedrine". In Monographs In Contact Allergy, 412–13. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003158004-200.

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3

Schomburg, D., M. Salzmann e D. Stephan. "Ephedrine dehydrogenase". In Enzyme Handbook 7, 87–89. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-78521-4_14.

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4

Limberger, Renata Pereira, Ana Laura Bemvenuti Jacques, Gabriela Cristina Schmitt e Marcelo Dutra Arbo. "Pharmacological Effects of Ephedrine". In Natural Products, 1217–37. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-22144-6_41.

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5

Rogers, P. L., H. S. Shin e B. Wang. "Biotransformation for l-ephedrine production". In Biotreatment, Downstream Processing and Modelling, 33–59. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/bfb0103029.

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6

Holze, Rudolf. "Ionic conductance of ephedrine hydrochloride". In Electrochemistry, 614. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49251-2_580.

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7

Moosavi-Shalheh, Arash. "How to Induce Arrhythmias with Ephedrine?" In Arrhythmia Induction in the EP Lab, 151–57. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-92729-9_16.

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8

Meyer, D., R. Winterhoff, U. Stierle, K. Sack e A. Sheikhzadeh. "Catecholamine-Induced Cardiomyopathy Caused by Abuse of Ephedrine". In Endocrinology of the Heart, 275–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-83858-3_66.

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9

Wittwer, Erica D., Juraj Sprung e Wayne T. Nicholson. "Extreme Blood Pressure After Ephedrine: Should We Rule Out Pheochromocytoma?" In A Case Approach to Perioperative Drug-Drug Interactions, 585–88. New York, NY: Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4614-7495-1_129.

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Peter, Helga, e Thomas Penzel. "Ephedrin". In Springer Reference Medizin, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2020. http://dx.doi.org/10.1007/978-3-642-54672-3_497-1.

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Atti di convegni sul tema "Ephedrine"

1

Mahdy, Tarek, Abdulaziz Al-Sulaiti, Yasser Abdelqader, Abdelrahman Fikry, Gaffar Hag e Mohammad I. Ahmad. "A Validated and Applicable Direct Injection LC/MS/MS Method of Fourteen Drugs of Abuse in Urine Samples to Avoid the False Positive/Negative Results of Immunoassay Techniques in Forensic Cases". In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0146.

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Abstract (sommario):

Many false positive and false negative results have been detected in immunoassay analyses of drugs of abuse in urine samples. A method of direct injection of diluted urine into LC/MS/MS was developed and validated for detection and quantitation of Amphetamine, Methamphetamine, MDMA, MDA, Benzoylecgonine, Ecgonine, Norpseudoephedrine, Ephedrine, Tapentadol, Tramadol, O-desmethyltramadol, Tapentadol, Pregabline, Gabapentine and Methadone to avoid the false positive and false negative results in urine samples. Linearity of Amphetamine, Methamphetamine MDMA, MDA, Benzoylecgonine, Ecgonine, Norpseudoephedrine and Ephedrine was (60-2400ng/mL), for Tapentadol, Tramadol, O-desmethyltramadol, and Methadone was (50-1600 ng/mL), and for Pregabline and Gabapentine was (100-4000ng/mL) and r2 ˃ 0.992 for all analysts. A 440 urine samples have been analyzed using both immunoassay technique and LC/MS/MS by direct injection method giving a good comparison to illustrate how this method was specific, accurate, precise, and applicable for forensic urine samples

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ShiHua, Ma, Wang WenFeng, Chen Hua e Cui Yi Ping. "Identification of the (+) and (−)-Ephedrine Used by THz-TDS". In Laser and Tera-Hertz Science and Technology. Washington, D.C.: OSA, 2012. http://dx.doi.org/10.1364/ltst.2012.sth4a.09.

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3

Deng, Fusheng, Jingling Shen, Guangqin Wang e Meiyan Liang. "Spectroscopy study of ephedrine hydrochloride and papaverine hydrochloride in terahertz range". In International Conference of Optical Instrument and Technology, a cura di Xuping Zhang, Wojtek J. Bock, Xiaoyi Bao e Ping Shum. SPIE, 2008. http://dx.doi.org/10.1117/12.805630.

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4

Varriale, Antonio, Maria Staiano, Maria Strianese, Vincenzo Marzullo, Giuseppe Ruggiero, Alberto Secchi, Massimiliano Dispenza, Anna Maria Fiorello e Sabato D'Auria. "A new optical method for a fast and simple detection of ephedrine". In SPIE Security + Defence, a cura di Roberto Zamboni, François Kajzar, Attila A. Szep, Colin Lewis, Douglas Burgess, Mark T. Gruneisen, Miloslav Dusek e John G. Rarity. SPIE, 2011. http://dx.doi.org/10.1117/12.898045.

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5

Nakamori, S., N. Miyajima, S. Hyuga, Y. Minami, H. Kazama, M. Hiyama, M. Endo et al. "Therapeutic and analgesic effects of ephedrine alkaloids-free Ephedra Herb extract on complete Freud’s adjuvant-induced arthritis model mouse". In 67th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research (GA) in cooperation with the French Society of Pharmacognosy AFERP. © Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-3399686.

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6

Sujith, P. J., Anish Sharma, P. Ganapathi e B. N. Ranjini. "Comparison of Bolus Ephedrine, Mephentermine and Phenylephrine for Maintenance of Arterial Pressure during Caesarian Section, a Double-Blind Study". In ISACON KARNATAKA 2017 33rd Annual Conference of Indian Society of Anaesthesiologists (ISA), Karnataka State Chapter. Indian Society of Anaesthesiologists (ISA), 2017. http://dx.doi.org/10.18311/isacon-karnataka/2017/fp012.

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Žunić, M., N. Krčevski Škvarč e M. Kamenik. "ESRA19-0211 The influence of the infusion of ephedrine and phenylephrine on the stability of the circulation after subarachnoid anesthesia in senior adults". In Abstracts of the European Society of Regional Anesthesia, September 11–14, 2019. BMJ Publishing Group Ltd, 2019. http://dx.doi.org/10.1136/rapm-2019-esraabs2019.116.

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Vo-Thanh, Giang, e Thu Truong-Thi-Kim. "Synthesis of Functionalized Chiral Ammonium, Imidazolium and Pyridinium-based Ionic Liquids derived from (-)-Ephedrine using solvent-free microwave activation. Applications for the Asymmetric Michael Addition". In The 17th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2013. http://dx.doi.org/10.3390/ecsoc-17-f003.

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Seijas, Julio, M. Vázquez-Tato e Luis Barreiro-Castro. "N,N-Diisopropylcarbamate of alpha-hydroxystyrenes: A New Entry to alpha-hydroxy-γphenylethylamines and ephedrines". In The 4th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2000. http://dx.doi.org/10.3390/ecsoc-4-01850.

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Ma, Shihua, Guifeng Liu, Peng Zhang, Xiyu Song, Te Ji e Wenfeng Wang. "The THz fingerprint spectra of the active ingredients of a TCM medicine: Herba Ephedrae". In Photonics and Optoelectronics Meetings, a cura di Jianquan Yao, Shenggang Liu e Xi-Cheng Zhang. SPIE, 2008. http://dx.doi.org/10.1117/12.823369.

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Rapporti di organizzazioni sul tema "Ephedrine"

1

Valene, Edward J., Jeffrey D. Zubkowski e Drake S. Eggleston. Discrimination in Resolving Systems: Ephedrine-Mandelic Acid. Fort Belvoir, VA: Defense Technical Information Center, febbraio 1992. http://dx.doi.org/10.21236/ada246491.

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2

Lewinsohn, Efraim, Peter Facchini e Frederic Marsolais. Comparative Functional Genomics as a Platform to Investigate Ephedrine Alkaloid Biosynthesis in Plants. United States Department of Agriculture, gennaio 2009. http://dx.doi.org/10.32747/2009.7613886.bard.

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