Abstract: The invention provides transgenic, non-human animals and transgenic non-human mammalian cells harboring a transgene encoding a p25 (activator of the protein kinase cdk 5) polypeptide. The two neuropathological lesions associated with Alzheimer's disease (AD) are amyloid plaques and neurofibrillary tangles (NFTs), composed predominantly of amyloid &bgr; peptides and hyperphosphorylated tau, respectvely. While animal models for plaque formation exist, there is no animal model that recapitulates the formation of NFTs. This invention provides transgenic mice that overexpress human p25, an activator of cdk5, resulting in tau that is hyperphosphorylated at AD-relevant epitopes. Deposition of tau is detected in the amygdala, thalamus and cortex. Increased phosphorylated neurofilament, silver-positive neurons and neuronal death are also observed in these regions. We conclude that the overexpression of p25, an activator of cdk5, is sufficient to produce hyperphosphorylation of tau and neuronal death.
Abstract: Polynucleotide and polypeptide sequences are described. The polypeptide sequences comprise one or more of: (a) a polypeptide having the deduced amino acid sequence translated from the polynucleotide sequence in SEQ ID NO: 1 and variants, fragments, homologues, analogues and derivatives thereof; (b) a polypeptide of SEQ ID NO: 2 and variants, fragments, homologues, analogues and derivatives thereof; or (c) a polypeptide encoded by the cDNA of NCIMB 41067 and variants, fragments, homologues, analogues and derivatives thereof.
Abstract: This invention relates to novel acylamino cyclopropane derivatives, processes for their preparation, pharmaceutical compositions containing them and their use as modulators of dopamine D3 receptors and for the treatment of anxiety, psychosis, substance abuse, Parkinson's disease, sexual dysfunction, and other central nervous system disorders.
Abstract: This invention relates to the use of a CYP2D6 inhibitor in combination with a drug having CYP2D6 catalyzed metabolism, wherein the drug and the CYP2D6 inhibitor are not the same compound; and pharmaceutical compositions for said use.
Abstract: The present invention relates to the use of a pyrazolopyrimidinone PDE5 inhibitor such as sildenafil for the treatment of polycystic ovary syndrome.
Type:
Application
Filed:
September 2, 2003
Publication date:
February 12, 2004
Applicant:
Pfizer Inc.
Inventors:
Mahmoud Nizar Ghazzi, Nandan Parmanand Koppiker, Simon Lempriere Westbrook
Abstract: The present invention is directed to compositions and methods for producing avermectins, and is primarily in the field of animal health. The present invention relates to the identification and characterization of two novel genes, herein referred to as the aveR1 and aveR2 genes, that are involved in regulating avermectin polyketide synthase (PKS) expression and avermectin biosynthesis in Streptomyces avermitilis. The present invention is based on the discovery that inactivation of these genes results in an increase in the amount of avermectin produced by S. avermitilis.
Type:
Grant
Filed:
November 16, 2000
Date of Patent:
February 10, 2004
Assignee:
Pfizer Inc.
Inventors:
Kim J. Stutzman-Engwall, Brenda S. Price
Abstract: The present invention provides the tosylate salt of (R)-2-(2-(4-oxazol-4-yl-phenoxy)-ethylamino)-1-pyridin-3-yl-ethanol, the monohydrate of such salt, processes useful in the preparation of such salt and such monohydrate, pharmaceutical compositions comprising such salt, or such monohydrate, methods of treating &bgr;3-adrenergic receptor-mediated diseases, conditions, and disorders in a mammal using such salt, such monohydrate, or such pharmaceutical compositions; and methods of increasing the content of lean meat in edible animals using such salt, such monohydrate, or such pharmaceutical compositions.
Type:
Grant
Filed:
February 25, 2003
Date of Patent:
February 10, 2004
Assignee:
Pfizer Inc.
Inventors:
Joseph F. Krzyaniak, Jennifer A. Lafontaine
Abstract: A compound of the formula XXXI
or the pharmaceutically acceptable salt thereof; wherein R1, R2, and R3 are as defined herein and the compound is useful in the preparation or use of compounds that treat inflammation and other immune disorders.
Abstract: The present invention provides processes useful in the preparation of certain &bgr;3-adrenergic receptor agonists of the structural formula
the pharmaceutically acceptable salts thereof, and the hydrates of said pharmaceutically acceptable salts, wherein HET is as described herein. The invention further provides intermediates useful in the preparation of such agonists, and processes useful in the production of such intermediates.
Type:
Grant
Filed:
February 20, 2003
Date of Patent:
February 10, 2004
Assignee:
Pfizer Inc.
Inventors:
Robert J. Chambers, Robert W. Dugger, Ming Kang, Yong Tao, John W. Wong
Abstract: Pharmaceutical kits are provided that reduce or prevent oxidative degradation of oxygen-sensitive pharmaceutically active ingredients in solid unit dosage forms that are supplied in oxygen permeable containers. Stabilization of the active ingredient is accomplished by incorporating an oxygen absorber into a sealed oxygen permeable container.
Abstract: This invention relates to a process for preparing compounds of the Formula I,
wherein R1, R2 and Pt are as defined in the specification, which are intermediates in the synthesis of certain growth hormone secretagogue compounds. This invention further relates to processes for preparing the growth hormone secretagogues. The invention also relates to the compound of Formula I wherein R1 is H, R2 is 2,2,2-trifluoromethyl and Pt is Boc.
Abstract: An improved process for removing trace solvent from a material comprises rewetting the product with water during the drying process. Finished products such as suramin are produced efficiently to a high quality on a factory scale.
Type:
Grant
Filed:
June 14, 2002
Date of Patent:
February 3, 2004
Assignee:
Pfizer Science and Technology Ireland, Limited
Abstract: A process for the purification of 2-methoxy-5-trifluoro-methoxy benzaldehyde oil in which the oil is converted to amine by reaction of a nitroaniline with the oil; the imine is isolated as a solid; and the solid imine is converted back to the 2-methoxy-5-trifluoromethoxy benzaldehyde oil. The nitroaniline is selected from the group consisting of 3-nitroaniline, 3-methyl-2-nitroaniline, 4-methyl-2-nitroaniline, 2 methyl-3-nitroaniline and 4-methyl-3-nitroaniline.
Type:
Grant
Filed:
December 9, 2002
Date of Patent:
February 3, 2004
Assignee:
Pfizer Inc
Inventors:
Timothy J. N. Watson, Patrice Arpin, Michael G. Vetelino
Abstract: This invention is directed to compounds of the formula
and the pharmaceutically-acceptable salts thereof, where the substituents are as defined in the specification, which are growth hormone secretogogues and which increase the level of endogenous growth hormone. The compounds of this invention are useful for the treatment and prevention of osteoporosis, congestive heart failure, frailty associated with aging, obesity; accelerating bone fracture repair, attenuating protein catabolic response after a major operation, reducing cachexia and protein loss due to chronic illness, accelerating wound healing, or accelerating the recovery of burn patients or patients having undergone major surgery; improving muscle strength, mobility, maintanence of skin thickness, metabolic homeostasis or renal homeostasis.
Abstract: This invention relates to the use of a CYP2D6 inhibitor in combination with a drug having CYP2D6 catalyzed metabolism, wherein the drug and the CYP2D6 inhibitor are not the same compound; and pharmaceutical compositions for said use.