Naloxone is a well-known opioid antagonist indicated for the treatment of CNS （central nervous system） and respiratory depression induced by natural or synthetic opioid in adults and neonates whose mothers have rece...Naloxone is a well-known opioid antagonist indicated for the treatment of CNS （central nervous system） and respiratory depression induced by natural or synthetic opioid in adults and neonates whose mothers have received opioids. While it has been reported that an injection of 0.2 mg/mL of naloxone hydrochloride is physically and chemically stable, data on photostability on continuous i.v. infusion of 0.2 mg/mL of naloxone hydrochloride has not been reported. Therefore, a method was required for assessment of naloxone hydrochloride photostability. A high performance LC-MS （liquid chromatography/mass spectrometry） method was established to evaluate the photostability of naloxone hydrochloride. Injections of naloxone hydrochloride in 0.9% sodium chloride were exposed to artificial light and stored at room temperature （22 ~C） and 37 ~C. Naloxone losses up to 9.79% of its initial concentration when exposed to light at room temperature for 192 h, but the degradation increased up to 14.91% as the storage temperature increase. The disappearance of naloxone hydrochloride was correlated with the appearance of nor-oxymorphonedegradant. Naloxone hydrochloride is photosensitive and degradation increased at highly temperature and light intensity. Therefore, naloxone i.v. infusion solutions should either be protected from light and/or be frequently replaced when being administered to patients.展开更多
Correction:Natural Products and Bioprospecting(2024)14:33 https://doi.org/10.1007/s13659-024-00455-x Following publication of the original article[1],the authors reported that the original version of this article unfo...Correction:Natural Products and Bioprospecting(2024)14:33 https://doi.org/10.1007/s13659-024-00455-x Following publication of the original article[1],the authors reported that the original version of this article unfortunately contained mistakes.Page 1,section“Abstract”,the originally published texts were:Despite low bioavailability(0.024%),N-hydap exhibited a higher distribution in the lungs(26.26%),accounting for its efficacy against SCLC.展开更多
目的对红花注射液进行化学成分分析及应用分子对接技术筛选红花注射液中过敏原成分。方法应用高效液相色谱-离子阱-飞行时间质谱高分辨质谱技术(high performance liquid chromatography-ion trap-time-of-flight high resolution mass ...目的对红花注射液进行化学成分分析及应用分子对接技术筛选红花注射液中过敏原成分。方法应用高效液相色谱-离子阱-飞行时间质谱高分辨质谱技术(high performance liquid chromatography-ion trap-time-of-flight high resolution mass spectrometry,HPLC-IT-TOF-MS)鉴定红花注射液中化学成分,应用分子对接技术进一步对潜在过敏原成分进行筛选。结果从红花注射液中共鉴定出40个化合物,其中26个查耳酮碳苷类化合物、8个黄酮类化合物、3个生物碱类化合物和3个其他类化合物,所有化合物均在负离子模式下鉴定。将这些化合物分别与人血清白蛋白(human serum albumin,HSA)、Mas相关G蛋白偶联受体X2(Mas-related G protein-coupled receptor X2,MRGPRX2)、Ras同源基因家族成员A(Ras homolog gene family member A)等蛋白进行分子对接,其中与HAS结合的化合物6个,与MRGPRX2结合的化合物有9个,发现红花注射液中过敏成分主要为6-羟基山柰酚类化合物和红花醌类化合物。结论建立了液-质联用与分子对接相结合的过敏原筛选方法,从红花注射液中鉴定出40个化合物,明确6-羟基山柰酚类和红花醌类化合物为潜在过敏原,为红花注射液过敏原筛选及其致敏机制研究提供了重要参考和数据。展开更多
文摘Naloxone is a well-known opioid antagonist indicated for the treatment of CNS （central nervous system） and respiratory depression induced by natural or synthetic opioid in adults and neonates whose mothers have received opioids. While it has been reported that an injection of 0.2 mg/mL of naloxone hydrochloride is physically and chemically stable, data on photostability on continuous i.v. infusion of 0.2 mg/mL of naloxone hydrochloride has not been reported. Therefore, a method was required for assessment of naloxone hydrochloride photostability. A high performance LC-MS （liquid chromatography/mass spectrometry） method was established to evaluate the photostability of naloxone hydrochloride. Injections of naloxone hydrochloride in 0.9% sodium chloride were exposed to artificial light and stored at room temperature （22 ~C） and 37 ~C. Naloxone losses up to 9.79% of its initial concentration when exposed to light at room temperature for 192 h, but the degradation increased up to 14.91% as the storage temperature increase. The disappearance of naloxone hydrochloride was correlated with the appearance of nor-oxymorphonedegradant. Naloxone hydrochloride is photosensitive and degradation increased at highly temperature and light intensity. Therefore, naloxone i.v. infusion solutions should either be protected from light and/or be frequently replaced when being administered to patients.
文摘Correction:Natural Products and Bioprospecting(2024)14:33 https://doi.org/10.1007/s13659-024-00455-x Following publication of the original article[1],the authors reported that the original version of this article unfortunately contained mistakes.Page 1,section“Abstract”,the originally published texts were:Despite low bioavailability(0.024%),N-hydap exhibited a higher distribution in the lungs(26.26%),accounting for its efficacy against SCLC.
文摘目的对红花注射液进行化学成分分析及应用分子对接技术筛选红花注射液中过敏原成分。方法应用高效液相色谱-离子阱-飞行时间质谱高分辨质谱技术(high performance liquid chromatography-ion trap-time-of-flight high resolution mass spectrometry,HPLC-IT-TOF-MS)鉴定红花注射液中化学成分,应用分子对接技术进一步对潜在过敏原成分进行筛选。结果从红花注射液中共鉴定出40个化合物,其中26个查耳酮碳苷类化合物、8个黄酮类化合物、3个生物碱类化合物和3个其他类化合物,所有化合物均在负离子模式下鉴定。将这些化合物分别与人血清白蛋白(human serum albumin,HSA)、Mas相关G蛋白偶联受体X2(Mas-related G protein-coupled receptor X2,MRGPRX2)、Ras同源基因家族成员A(Ras homolog gene family member A)等蛋白进行分子对接,其中与HAS结合的化合物6个,与MRGPRX2结合的化合物有9个,发现红花注射液中过敏成分主要为6-羟基山柰酚类化合物和红花醌类化合物。结论建立了液-质联用与分子对接相结合的过敏原筛选方法,从红花注射液中鉴定出40个化合物,明确6-羟基山柰酚类和红花醌类化合物为潜在过敏原,为红花注射液过敏原筛选及其致敏机制研究提供了重要参考和数据。
