◉ Summary of Use during Lactation:Because there is no published experience with methamphetamine as a therapeutic agent during breastfeeding, an alternate drug may be preferred, especially while nursing a newborn or preterm infant. One expert recommends that amphetamines not be used therapeutically in nursing mothers.
Methamphetamine should not be used as a recreational drug by nursing mothers because it may impair their judgment and childcare abilities. Methamphetamine and its metabolite, amphetamine, are detectable in breastmilk and infant's serum after abuse of methamphetamine by nursing mothers. However, these data are from random collections rather than controlled studies because of ethical considerations in administering recreational methamphetamine to nursing mothers. Other factors to consider are the possibility of positive urine tests in breastfed infants which might have legal implications, and the possibility of other harmful contaminants in street drugs. Breastfeeding is generally discouraged in mothers who are actively abusing amphetamines. In mothers who abuse methamphetamine while nursing, withholding breastfeeding for 48 to 100 hours after the maternal use been recommended, although in many mothers methamphetamine is undetectable in breastmilk after an average of 72 hours from the last use. It has been suggested that breastfeeding can be reinstated 24 hours after a negative maternal urine screen for amphetamines.
◉ Effects in Breastfed Infants:A 2-month-old infant whose mother used illicit street methamphetamine recreationally by nasal inhalation was found dead 8 hours after a small amount of breastfeeding and ingestion of 120 to 180 mL of formula. The infant's serum methamphetamine concentration on autopsy was 39 mcg/L. Although the infant's mother was convicted of child endangerment for the use of methamphetamine during breastfeeding, the role that methamphetamine played in the infant's death has been questioned because of the low infant serum methamphetamine concentration and the mother's alleged minimal breastfeeding.
South Australian government pathologists reported the death of a breastfed infant who was co-sleeping with its mother. Methamphetamine was found in a “significant” concentration in the infant on autopsy and the drug in breastmilk was thought to be potentially contributory to the death. These authors also reported that in prior deaths of infants under 12 months of age, detectable methamphetamine and its metabolite, amphetamine, may have been partially obtained via breastmilk. Pathologists from the New Zealand government confirmed similar findings in their country.
◉ Effects on Lactation and Breastmilk:A single oral dose of 0.2 mg/kg to a maximum of 17.5 mg of d-methamphetamine was given to 6 subjects (4 male and 2 female). Serum prolactin concentrations were unchanged over a period of 300 minutes after the dose.
In 2 papers by the same authors, 20 women with normal physiologic hyperprolactinemia were studied on days 2 or 3 postpartum. Eight received dextroamphetamine 7.5 mg intravenously, 6 received 15 mg intravenously and 6 who served as controls received intravenous saline. The 7.5 mg dose reduced serum prolactin by 25 to 32% compared to control, but the difference was not statistically significant. The 15 mg dose significantly decreased serum prolactin by 30 to 37% at times after the infusion. No assessment of milk production was presented. The authors also quoted data from another study showing that a 20 mg oral dose of dextroamphetamine produced a sustained suppression of serum prolactin by 40% in postpartum women.
A study compared 31 methamphetamine-dependent subject to 23 non-dependent subjects. The serum prolactin concentrations in the methamphetamine-dependent subjects were elevated at days 2 and 30 of abstinence. The elevation was greater in women than in men. The maternal prolactin level in a mother with established lactation may not affect her ability to breastfeed.
In a retrospective Australian study, mothers who used intravenous amphetamines during pregnancy were less likely to be breastfeeding their newborn infants at discharge than mothers who abused other drugs (27% vs 42%). The cause of this difference was not determined.
A prospective, multicenter study followed mothers who used methamphetamine prenatally (n = 204) to those who did not (n = 208). Infants exposed to methamphetamine exhibited poor suck, excessive suck and more jitteriness compared to nonexposed infants. Mothers who used methamphetamine were less likely to breastfeed their infants (38%) at hospital discharge than those who did not use methamphetamine (76%).
Continuous nicardipine infusion to control blood pressure after evacuation of acute cerebral hemorrhage
摘要:
Purpose: To explore the long-term effects of the calcium antagonist, nicardipine, on cerebral hemodynamic in patients with acute cerebral hemorrhage, we investigated the effects of nicardipine infusion on intracranial pressure (ICP), middle cerebral arterial blood flow velocity (Vmca), and computed tomographical (CT) findings of bleeding and edema.Methods: Twenty-two patients with acute cerebral hemorrhage were infused with nicardipine for > 72 hr to decrease blood pressure. Blood pressure, heart rate, conscious level, Vmca, pulsatility index (PI, using transcranial Doppler), ICP, cerebral perfusion pressure (CPP) and platelet counts were monitored. CT examination was also performed to detect the changes of bleeding (hematoma) and/or brain edema.Results: Blood pressure decreased (20 to 30% from control, P < 0.05) without any changes in heart rate. Platelet count did not change neither did Vmca and PI change on either the intact or injured side. The ICP decreased 24 hr after the end of infusion from 30 +/- 12 mmHg to 20 +/- 9 mmHg (P = 0.036) but was still higher than normal. The CPP decreased at 24 hr (75 +/- 14 mmHg, P = 0.026) and 72 hr (73 +/- 15 mmHg, P = 0.024) from the baseline (99 +/- 17 mmHg). Conscious level improved but not significantly and CT findings did not show any exacerbation in bleeding or edema.Conclusion: In patients with acute cerebral hemorrhage, nicardipine infusion to decrease blood pressure by 20 to 30% had no effect on Vmca, ICP cerebral bleeding and edema, but decreased CPP.
[EN] METHODS AND COMPOSITIONS FOR SUBSTANCE USE DISORDER VACCINE FORMULATIONS AND USES THEREOF<br/>[FR] MÉTHODES ET COMPOSITIONS DESTINÉES À DES FORMULATIONS VACCINALES CONTRE DES TROUBLES LIÉS À UNE SUBSTANCE, ET LEURS UTILISATIONS
申请人:MOLECULAR EXPRESS INC
公开号:WO2018231706A1
公开(公告)日:2018-12-20
The present invention relates to vaccine compositions for treatment of substance use disorders, methods for the manufacture thereof, and methods for the use thereof to treat an animal. These compositions comprise a hapten conjugated via a linker to a protein scaffold and mixed with a particulate carrier and at least one immunostimulatory adjuvant molecule.
Evaluation of the Edman degradation product of vancomycin bonded to core-shell particles as a new HPLC chiral stationary phase
作者:Garrett Hellinghausen、Diego A. Lopez、Jauh T. Lee、Yadi Wang、Choyce A. Weatherly、Abiud E. Portillo、Alain Berthod、Daniel W. Armstrong
DOI:10.1002/chir.22985
日期:2018.9
macrocyclic glycopeptide‐based chiralstationaryphase (CSP), prepared via Edman degradation of vancomycin, was evaluated as a chiralselector for the first time. Its applicability was compared with other macrocyclic glycopeptide‐based CSPs: TeicoShell and VancoShell. In addition, another modified macrocyclic glycopeptide‐based CSP, NicoShell, was further examined. Initial evaluation was focused on the complementary
[EN] CHEMICAL COMPOUNDS<br/>[FR] COMPOSÉS CHIMIQUES
申请人:GLAXOSMITHKLINE LLC
公开号:WO2010059658A1
公开(公告)日:2010-05-27
The invention is directed to 6-(4-pyιϊmidinyl)-1 H-indazole derivatives. Specifically, the invention is directed to compounds according to Formula (I) wherein R1 - R4 are defined herein. The compounds of the invention are inhibitors of PDK1 and can be useful in the treatment of immune and metabolic diseases and disorders characterized by constitutively activated ACG kinases such as cancer and more specifically cancers of the breast, colon, and lung. Accordingly, the invention is further directed to pharmaceutical compositions comprising a compound of the invention. The invention is still further directed to methods of inhibiting PDK1 activity and treatment of disorders associated therewith using a compound of the invention or a pharmaceutical composition comprising a compound of the invention.
Chiral Separation of Cathinone and Amphetamine Derivatives by HPLC/UV Using Sulfated ß-Cyclodextrin as Chiral Mobile Phase Additive
作者:Magdalena Taschwer、Yvonne Seidl、Stefan Mohr、Martin G. Schmid
DOI:10.1002/chir.22341
日期:2014.8
this research work was to develop an inexpensive method for the chiral separation of cathinones and amphetamines. This should help to discover if the substances are sold as racemic mixtures and give further information about their quality as well as their origin. Chiral separation of a set of 6amphetamine and 25 cathinone derivatives, mainly purchased from various Internet shops, is presented. A LiChrospher
在过去的几年中,新的合法和非法高价的确定已成为警察和检察机关的巨大挑战。在分析方面,只有几种分析方法可用于识别这些新物质。而且,许多这些休闲药物是手性的,并且认为对映异构体的药理效力不同。由于非对映选择性合成更容易,更便宜,因此它们主要以外消旋混合物的形式出售。这项研究工作的目的是开发一种廉价的方法,用于手性分离卡西酮和苯丙胺。这应该有助于发现这些物质是否以外消旋混合物的形式出售,并提供有关其质量及其来源的更多信息。一组6种苯丙胺和25种卡西酮衍生物的手性分离,介绍了主要从各种互联网商店购买的产品。固定相使用250 x 4 mm,5 µm的LiChrospher 100 RP-18e。手性流动相由甲醇,水和硫酸化的β-环糊精组成。使用UV检测在反相模式下在等度条件下进行测量。使用两种物质类别的四种模型化合物来优化流动相。在最终条件下(甲醇:水2.5:97.5 + 2%硫酸化的β-环糊精),
Stereoisomers of allenic amines as inactivators of monoamine oxidase type B. Stereochemical probes of the active site
作者:Roger A. Smith、Robert L. White、Allen Krantz
DOI:10.1021/jm00403a012
日期:1988.8
The kinetics of inactivation of mitochondrial monoamineoxidase type B (MAO-B) by a series of 18 stereoisomers of tertiary alpha-allenic amines have been investigated in detail. The chirality of the allene group in N-methyl-N-aralkylpenta-2,3-dienamines was found to have a profound effect on the inactivation rate, with the (R)-allenes being up to 200-fold more potent than their (S)-allenic counterparts