Patents by Inventor Pengxin Qiu
Pengxin Qiu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10835539Abstract: Use of 5?-androstane-3?,5,6?-triol and analogs thereof in the preparation of a drug for the prophylaxis or treatment of an altitude sickness caused by hypobaric hypoxia is provided, so as to provide a new drug for the prophylaxis or treatment of an altitude sickness. Researches revealed that 5?-androstane-3?,5,6?-triol treatment can effectively reduce vasogenic edema of brain tissue of Macaca fascicularis caused by hypobaric hypoxia, reduce the increased cerebral water content, and protect from neuronal vacuolar degeneration caused by hypobaric hypoxia, therefore it can improve neurological dysfunctions caused by hypobaric hypoxia and is useful in prophylaxis or treatment of an altitude sickness.Type: GrantFiled: March 25, 2019Date of Patent: November 17, 2020Assignee: Guangzhou Cellprotek Pharmaceutical Co., Ltd.Inventors: Wei Yin, Jiesi Chen, Guangmei Yan, Bingzheng Lu, Wenbo Zhu, Haiyan Hu, Pengxin Qiu, Yijun Huang, Jingxia Zhang
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Publication number: 20190262358Abstract: Use of 5?-androstane-3?,5,6?-triol and analogs thereof in the preparation of a drug for the prophylaxis or treatment of an altitude sickness caused by hypobaric hypoxia is provided, so as to provide a new drug for the prophylaxis or treatment of an altitude sickness. Researches revealed that 5?-androstane-3?,5,6?-triol treatment can effectively reduce vasogenic edema of brain tissue of Macaca fascicularis caused by hypobaric hypoxia, reduce the increased cerebral water content, and protect from neuronal vacuolar degeneration caused by hypobaric hypoxia, therefore it can improve neurological dysfunctions caused by hypobaric hypoxia and is useful in prophylaxis or treatment of an altitude sickness.Type: ApplicationFiled: March 25, 2019Publication date: August 29, 2019Inventors: Wei Yin, Jiesi Chen, Guangmei Yan, Bingzheng Lu, Wenbo Zhu, Haiyan Hu, Pengxin Qiu, Yijun Huang, Jingxia Zhang
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Patent number: 10357500Abstract: Use of 5?-androstane-3?,5,6?-triol and analogs thereof in the preparation of a drug for the prophylaxis or treatment of an altitude sickness caused by hypobaric hypoxia is provided, so as to provide a new drug for the prophylaxis or treatment of an altitude sickness. Researches revealed that 5?-androstane-3?,5,6?-triol treatment can effectively reduce vasogenic edema of brain tissue of Macaca fascicularis caused by hypobaric hypoxia, reduce the increased cerebral water content, and protect from neuronal vacuolar degeneration caused by hypobaric hypoxia, therefore it can improve neurological dysfunctions caused by hypobaric hypoxia and is useful in prophylaxis or treatment of an altitude sickness.Type: GrantFiled: April 14, 2015Date of Patent: July 23, 2019Assignee: Guangzhou Cellprotek Pharmaceutical Co., Ltd.Inventors: Wei Yin, Jiesi Chen, Guangmei Yan, Bingzheng Lu, Wenbo Zhu, Haiyan Hu, Pengxin Qiu, Yijun Huang, Jingxia Zhang
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Publication number: 20170042909Abstract: Use of 5?-androstane-3?,5,6?-triol and analogs thereof in the preparation of a drug for the prophylaxis or treatment of an altitude sickness caused by hypobaric hypoxia is provided, so as to provide a new drug for the prophylaxis or treatment of an altitude sickness. Researches revealed that 5?-androstane-3?,5,6?-triol treatment can effectively reduce vasogenic edema of brain tissue of Macaca fascicularis caused by hypobaric hypoxia, reduce the increased cerebral water content, and protect from neuronal vacuolar degeneration caused by hypobaric hypoxia, therefore it can improve neurological dysfunctions caused by hypobaric hypoxia and is useful in prophylaxis or treatment of an altitude sickness.Type: ApplicationFiled: April 14, 2015Publication date: February 16, 2017Inventors: Wei Yin, Jiesi Chen, Guangmei Yan, Bingzheng Lu, Wenbo Zhu, Haiyan Hu, Pengxin Qiu, Yijun Huang, Jingxia Zhang
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Patent number: 9320743Abstract: Disclosed is the use of 5?-androstane-3?,5,6?-triol in preparing neuroprotective drugs. The compound has significant protective effect against neuron injuries caused by cerebral ischemia, spinal cord ischemia or hypoxia and has no obvious toxic reaction within effective dose thereof.Type: GrantFiled: July 15, 2014Date of Patent: April 26, 2016Assignee: GUANGZHOU CELLPROTEK PHARMACEUTICAL LTD.Inventors: Guangmei Yan, Haiyan Hu, Tiandong Leng, Hanfei Sang, Jingxia Zhang, Pengxin Qiu, Shujia Zhou, Jiesi Chen, Xiuhua You
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Publication number: 20160051685Abstract: A 5?-androstane-3?,5,6?-triol injection and its preparation are disclosed. The injection uses hydroxypropyl-?-cyclodextrin as a solubilizing agent and the active ingredient is present at a weight ratio of 1-20:40-500 to the hydroxypropyl-?-cyclodextrin. The injection may also comprise, by weight, 1-100 parts of at least one isotonic adjusting agent, 0-200 parts of at least one freeze drying filler, and 0-2000 parts of at least one solvent. The preparation method comprises dissolving hydroxypropyl-?-cyclodextrin solution, 5?-androstane-3?,5,6?-triol and at least one additional soluble excipient in water for injection in sequence to obtain a raw injection solution, and subjecting the raw injection solution to decolorization, depyrogenation, filtration and sterilization to obtain the injection. Drying the filtrate yields a solid for injection.Type: ApplicationFiled: August 28, 2015Publication date: February 25, 2016Applicant: Guangzhou Cellprotek Pharmaceutical LTD.Inventors: Guangmei Yan, Haiyan HU, Jingxia ZHANG, Pengxin QIU, Ling LI, Ning TIAN
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Patent number: 9265837Abstract: A 5?-androstane-3?,5,6?-triol injection and its preparation are disclosed. The injection uses hydroxypropyl-?-cyclodextrin as a solubilizing agent and the active ingredient is present at a weight ratio of 1-20:40-500 to the hydroxypropyl-?-cyclodextrin. The injection may also comprise, by weight, 1-100 parts of at least one isotonic adjusting agent, 0-200 parts of at least one freeze drying filler, and 0-2000 parts of at least one solvent. The preparation method comprises dissolving hydroxypropyl-?-cyclodextrin solution, 5?-androstane-3?,5,6?-triol and at least one additional soluble excipient in water for injection in sequence to obtain a raw injection solution, and subjecting the raw injection solution to decolorization, depyrogenation, filtration and sterilization to obtain the injection. Drying the filtrate yields a solid for injection.Type: GrantFiled: August 28, 2015Date of Patent: February 23, 2016Assignee: Guangzhou Cellprotek Pharmaceuticals Ltd.Inventors: Guangmei Yan, Haiyan Hu, Jingxia Zhang, Pengxin Qiu, Ling Li, Ning Tian
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Patent number: 9161985Abstract: A 5?-androstane-3?,5,6?-triol injection and its preparation are disclosed. The injection uses hydroxypropyl-?-cyclodextrin as a solubilizing agent and the active ingredient is present at a weight ratio of 1-20:40-500 to the hydroxypropyl-?-cyclodextrin. The injection may also comprise, by weight, 1-100 parts of at least one isotonic adjusting agent, 0-200 parts of at least one freeze drying filler, and 0-2000 parts of at least one solvent. The preparation method comprises dissolving hydroxypropyl-?-cyclodextrin solution, 5?-androstane-3?,5,6?-triol and at least one additional soluble excipient in water for injection in sequence to obtain a raw injection solution, and subjecting the raw injection solution to decolorization, depyrogenation, filtration and sterilization to obtain the injection, Drying the filtrate yields a solid for injection.Type: GrantFiled: July 8, 2011Date of Patent: October 20, 2015Assignee: Guangzhou Cellprotek Pharmaceutical Ltd.Inventors: Guangmei Yan, Halyan Hu, Jingxia Zhang, Pengxin Qiu, Ling Li, Ning Tian
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Publication number: 20140329790Abstract: Disclosed is the use of 5?-androstane-3?,5,6?-triol in preparing neuroprotective drugs. The compound has significant protective effect against neuron injuries caused by cerebral ischemia, spinal cord ischemia or hypoxia and has no obvious toxic reaction within effective dose thereof.Type: ApplicationFiled: July 15, 2014Publication date: November 6, 2014Applicant: GUANGZHOU CELLPROTEK PHARMACEUTICAL LTD.Inventors: Guangmei YAN, Haiyan HU, Tiandong LENG, Hanfei SANG, Jingxia ZHANG, Pengxin QIU, Shujia ZHOU, Jiesi CHEN, Xiuhua YOU
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Patent number: 8809309Abstract: Disclosed is the use of 5?-androstane(alkyl)-3?,5,6?-triol in preparing neuroprotective drugs. The compound has significant protective effect against neuron injuries caused by cerebral ischemia, spinal cord ischemia or hypoxia and has no obvious toxic reaction within effective dose thereof.Type: GrantFiled: July 8, 2011Date of Patent: August 19, 2014Assignee: Guangzhou Cellprotek Pharmaceutical Ltd.Inventors: Guangmei Yan, Haiyan Hu, Tiandong Leng, Hanfei Sang, Jingxia Zhang, Pengxin Qiu, Shujia Zhou, Jiesi Chen, Xiuhua You
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Publication number: 20130172307Abstract: A 5?-androstane-3?,5,6?-triol injection and its preparation are disclosed. The injection uses hydroxypropyl-?-cyclodextrin as a solubilizing agent and the active ingredient is present at a weight ratio of 1-20:40-500 to the hydroxypropyl-?-cyclodextrin. The injection may also comprise, by weight, 1-100 parts of at least one isotonic adjusting agent, 0-200 parts of at least one freeze drying filler, and 0-2000 parts of at least one solvent. The preparation method comprises dissolving hydroxypropyl-?-cyclodextrin solution, 5?-androstane-3?,5,6?-triol and at least one additional soluble excipient in water for injection in sequence to obtain a raw injection solution, and subjecting the raw injection solution to decolorization, depyrogenation, filtration and sterilization to obtain the injection, Drying the filtrate yields a solid for injection.Type: ApplicationFiled: July 8, 2011Publication date: July 4, 2013Inventors: Guangmei Yan, Halyan Hu, Jingxia Zhang, Pengxin Qiu, Ling Li, Ning Tian
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Publication number: 20130157993Abstract: Disclosed is the use of 5?-androstane(alkyl)-3?,5,6?-triol in preparing neuroprotective drugs. The compound has significant protective effect against neuron injuries caused by cerebral ischemia, spinal cord isehemia or hypoxia and has no obvious toxic reaction within effective dose thereof.Type: ApplicationFiled: July 8, 2011Publication date: June 20, 2013Inventors: Guangmei Yan, Haiyan Hu, Tiandong Leng, Hanfei Sang, Jingxia Zhang, Pengxin Qiu, Shujia Zhou, Jiesi Chen, Xiuhua You
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Publication number: 20100152150Abstract: The application of marine steroid, i.e. 24-methylene-cholest-3?,5?,6?,19-tetrol, in preparing the medicine of treating neurons damaging is provided in the present invention. The keto-sterols compounds marine steroid YC-1 extracted from Nephthea albida has the action of neuronal protection, and no toxic reaction under the effective protective dosage.Type: ApplicationFiled: August 31, 2006Publication date: June 17, 2010Inventors: Guangmei Yan, Pengxin Qiu, Yijun Huang, Wei Yin, Xingwen Su, Ailing Liu, Hanfel Sang, Xiang Cai
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Publication number: 20080312170Abstract: The present invention relates to a fibrinolysin gene of Agkistrodon acutus, a vector containing the said gene and the host cell which transformed by the vector. The fibrinolysin could be used in treating diseases caused by thrombus. The fibrinolysin FII is purified from the crude venom of Agkistrodon acutus, and the corresponding gene is cloned. It is recommended to produce the fibrionolysin by the yeast expression system. The activity of the fibrionlysin is also determined. The advantages of this invention are that the expression level and activity of the fibrinolysin are both high and the quality of the fibrinolysin is stable.Type: ApplicationFiled: December 15, 2004Publication date: December 18, 2008Inventors: Guangmei Yan, Jiashu Chen, Pengxin Qiu, Hong Shan