Exact Mass: 189.0498
Exact Mass Matches: 189.0498
Found 241 metabolites which its exact mass value is equals to given mass value 189.0498,
within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error
0.001 dalton.
Kynurenic acid
Kynurenic acid is a quinolinemonocarboxylic acid that is quinoline-2-carboxylic acid substituted by a hydroxy group at C-4. It has a role as a G-protein-coupled receptor agonist, a NMDA receptor antagonist, a nicotinic antagonist, a neuroprotective agent, a human metabolite and a Saccharomyces cerevisiae metabolite. It is a monohydroxyquinoline and a quinolinemonocarboxylic acid. It is a conjugate acid of a kynurenate. Kynurenic Acid is under investigation in clinical trial NCT02340325 (FS2 Safety and Tolerability Study in Healthy Volunteers). Kynurenic acid is a natural product found in Ephedra foeminea, Ephedra intermedia, and other organisms with data available. Kynurenic acid is a uremic toxin. Uremic toxins can be subdivided into three major groups based upon their chemical and physical characteristics: 1) small, water-soluble, non-protein-bound compounds, such as urea; 2) small, lipid-soluble and/or protein-bound compounds, such as the phenols and 3) larger so-called middle-molecules, such as beta2-microglobulin. Chronic exposure of uremic toxins can lead to a number of conditions including renal damage, chronic kidney disease and cardiovascular disease. Kynurenic acid (KYNA) is a well-known endogenous antagonist of the glutamate ionotropic excitatory amino acid receptors N-methyl-D-aspartate (NMDA), alphaamino-3-hydroxy-5-methylisoxazole-4-propionic acid and kainate receptors and of the nicotine cholinergic subtype alpha 7 receptors. KYNA neuroprotective and anticonvulsive activities have been demonstrated in animal models of neurodegenerative diseases. Because of KYNAs neuromodulatory character, its involvement has been speculatively linked to the pathogenesis of a number of neurological conditions including those in the ageing process. Different patterns of abnormalities in various stages of KYNA metabolism in the CNS have been reported in Alzheimers disease, Parkinsons disease and Huntingtons disease. In HIV-1-infected patients and in patients with Lyme neuroborreliosis a marked rise of KYNA metabolism was seen. In the ageing process KYNA metabolism in the CNS of rats shows a characteristic pattern of changes throughout the life span. A marked increase of the KYNA content in the CNS occurs before the birth, followed by a dramatic decline on the day of birth. A low activity was seen during ontogenesis, and a slow and progressive enhancement occurs during maturation and ageing. This remarkable profile of KYNA metabolism alterations in the mammalian brain has been suggested to result from the development of the organisation of neuronal connections and synaptic plasticity, development of receptor recognition sites, maturation and ageing. There is significant evidence that KYNA can improve cognition and memory, but it has also been demonstrated that it interferes with working memory. Impairment of cognitive function in various neurodegenerative disorders is accompanied by profound reduction and/or elevation of KYNA metabolism. The view that enhancement of CNS KYNA levels could underlie cognitive decline is supported by the increased KYNA metabolism in Alzheimers disease, by the increased KYNA metabolism in downs syndrome and the enhancement of KYNA function during the early stage of Huntingtons disease. Kynurenic acid is the only endogenous N-methyl-D-aspartate (NMDA) receptor antagonist identified up to now, that mediates glutamatergic hypofunction. Schizophrenia is a disorder of dopaminergic neurotransmission, but modulation of the dopaminergic system by glutamatergic neurotransmission seems to play a key role. Despite the NMDA receptor antagonism, kynurenic acid also blocks, in lower doses, the nicotinergic acetycholine receptor, i.e., increased kynurenic acid levels can explain psychotic symptoms and cognitive deterioration. Kynurenic acid levels are described to be higher in the cerebrospinal fluid (CSF) and in critical central nervous system (CNS) regions of schizophrenics as compared to controls. (A3279, A3280).... Kynurenic acid (KYNA) is a well-known endogenous antagonist of the glutamate ionotropic excitatory amino acid receptors N-methyl-D-aspartate (NMDA), alphaamino-3-hydroxy-5-methylisoxazole-4-propionic acid and kainate receptors and of the nicotine cholinergic subtype alpha 7 receptors. KYNA neuroprotective and anticonvulsive activities have been demonstrated in animal models of neurodegenerative diseases. Because of KYNAs neuromodulatory character, its involvement has been speculatively linked to the pathogenesis of a number of neurological conditions including those in the ageing process. Different patterns of abnormalities in various stages of KYNA metabolism in the CNS have been reported in Alzheimers disease, Parkinsons disease and Huntingtons disease. In HIV-1-infected patients and in patients with Lyme neuroborreliosis a marked rise of KYNA metabolism was seen. In the ageing process KYNA metabolism in the CNS of rats shows a characteristic pattern of changes throughout the life span. A marked increase of the KYNA content in the CNS occurs before the birth, followed by a dramatic decline on the day of birth. A low activity was seen during ontogenesis, and a slow and progressive enhancement occurs during maturation and ageing. This remarkable profile of KYNA metabolism alterations in the mammalian brain has been suggested to result from the development of the organisation of neuronal connections and synaptic plasticity, development of receptor recognition sites, maturation and ageing. There is significant evidence that KYNA can improve cognition and memory, but it has also been demonstrated that it interferes with working memory. Impairment of cognitive function in various neurodegenerative disorders is accompanied by profound reduction and/or elevation of KYNA metabolism. The view that enhancement of CNS KYNA levels could underlie cognitive decline is supported by the increased KYNA metabolism in Alzheimers disease, by the increased KYNA metabolism in downs syndrome and the enhancement of KYNA function during the early stage of Huntingtons disease. Kynurenic acid is the only endogenous N-methyl-D-aspartate (NMDA) receptor antagonist identified up to now, that mediates glutamatergic hypofunction. Schizophrenia is a disorder of dopaminergic neurotransmission, but modulation of the dopaminergic system by glutamatergic neurotransmission seems to play a key role. Despite the NMDA receptor antagonism, kynurenic acid also blocks, in lower doses, the nicotinergic acetycholine receptor, i.e., increased kynurenic acid levels can explain psychotic symptoms and cognitive deterioration. Kynurenic acid levels are described to be higher in the cerebrospinal fluid (CSF) and in critical central nervous system (CNS) regions of schizophrenics as compared to controls. (PMID: 17062375 , 16088227). KYNA has also been identified as a uremic toxin according to the European Uremic Toxin Working Group (PMID: 22626821). Kynurenic acid (KYNA) is a well-known endogenous antagonist of the glutamate ionotropic excitatory amino acid receptors N-methyl-D-aspartate (NMDA), alphaamino-3-hydroxy-5-methylisoxazole-4-propionic acid and kainate receptors and of the nicotine cholinergic subtype alpha 7 receptors. KYNA neuroprotective and anticonvulsive activities have been demonstrated in animal models of neurodegenerative diseases. Because of KYNAs neuromodulatory character, its involvement has been speculatively linked to the pathogenesis of a number of neurological conditions including those in the ageing process. Different patterns of abnormalities in various stages of KYNA metabolism in the CNS have been reported in Alzheimers disease, Parkinsons disease and Huntingtons disease. In HIV-1-infected patients and in patients with Lyme neuroborreliosis a marked rise of KYNA metabolism was seen. In the ageing process KYNA metabolism in the CNS of rats shows a characteristic pattern of changes throughout the life span. A marked increase of the KYNA content in the CNS occurs before the birth, followed by a dramatic decline on the day of birth. A low activity was seen during ontogenesis, and a slow and progressive enhancement occurs during maturation and ageing. This remarkable profile of KYNA metabolism alterations in the mammalian brain has been suggested to result from the development of the organisation of neuronal connections and synaptic plasticity, development of receptor recognition sites, maturation and ageing. There is significant evidence that KYNA can improve cognition and memory, but it has also been demonstrated that it interferes with working memory. Impairment of cognitive function in various neurodegenerative disorders is accompanied by profound reduction and/or elevation of KYNA metabolism. The view that enhancement of CNS KYNA levels could underlie cognitive decline is supported by the increased KYNA metabolism in Alzheimers disease, by the increased KYNA metabolism in downs syndrome and the enhancement of KYNA function during the early stage of Huntingtons disease. Kynurenic acid is the only endogenous N-methyl-D-aspartate (NMDA) receptor antagonist identified up to now, that mediates glutamatergic hypofunction. Schizophrenia is a disorder of dopaminergic neurotransmission, but modulation of the dopaminergic system by glutamatergic neurotransmission seems to play a key role. Despite the NMDA receptor antagonism, kynurenic acid also blocks, in lower doses, the nicotinergic acetycholine receptor, i.e., increased kynurenic acid levels can explain psychotic symptoms and cognitive deterioration. Kynurenic acid levels are described to be higher in the cerebrospinal fluid (CSF) and in critical central nervous system (CNS) regions of schizophrenics as compared to controls. (PMID: 17062375, 16088227) [HMDB] D018377 - Neurotransmitter Agents > D018683 - Excitatory Amino Acid Agents > D018691 - Excitatory Amino Acid Antagonists A quinolinemonocarboxylic acid that is quinoline-2-carboxylic acid substituted by a hydroxy group at C-4. [Raw Data] CBA11_Kynurenic-acid_pos_30eV_1-3_01_673.txt [Raw Data] CBA11_Kynurenic-acid_pos_50eV_1-3_01_675.txt [Raw Data] CBA11_Kynurenic-acid_pos_40eV_1-3_01_674.txt [Raw Data] CBA11_Kynurenic-acid_neg_30eV_1-3_01_726.txt [Raw Data] CBA11_Kynurenic-acid_pos_20eV_1-3_01_672.txt [Raw Data] CBA11_Kynurenic-acid_pos_10eV_1-3_01_671.txt [Raw Data] CBA11_Kynurenic-acid_neg_20eV_1-3_01_725.txt [Raw Data] CBA11_Kynurenic-acid_neg_50eV_1-3_01_728.txt [Raw Data] CBA11_Kynurenic-acid_neg_40eV_1-3_01_727.txt [Raw Data] CBA11_Kynurenic-acid_neg_10eV_1-3_01_724.txt Kynurenic acid, an endogenous tryptophan metabolite, is a broad-spectrum antagonist targeting NMDA, glutamate, α7 nicotinic acetylcholine receptor. Kynurenic acid is also an agonist of GPR35/CXCR8.
Thiotepa
N,NN-triethylenethiophosphoramide (ThioTEPA) is a cancer chemotherapeutic member of the alkylating agent group, now in use for over 50 years. It is a stable derivative of N,N,N- triethylenephosphoramide (TEPA). It is mostly used to treat breast cancer, ovarian cancer and bladder cancer. It is also used as conditioning for Bone marrow transplantation. Its main toxicity is myelosuppression. L - Antineoplastic and immunomodulating agents > L01 - Antineoplastic agents > L01A - Alkylating agents > L01AC - Ethylene imines C274 - Antineoplastic Agent > C186664 - Cytotoxic Chemotherapeutic Agent > C2842 - DNA Binding Agent D000970 - Antineoplastic Agents > D019653 - Myeloablative Agonists D007155 - Immunologic Factors > D007166 - Immunosuppressive Agents D009676 - Noxae > D000477 - Alkylating Agents
1-Nitronaphthalene-5,6-oxide
This compound belongs to the family of Nitronaphthalenes. These are polycyclic aromatic compounds containing a naphthalene moiety substituted by one or more nitro groups.
1-Nitronaphthalene-7,8-oxide
This compound belongs to the family of Nitronaphthalenes. These are polycyclic aromatic compounds containing a naphthalene moiety substituted by one or more nitro groups.
(E)-3-(4-hydroxyphenyl)-2-isocyanoprop-2-enoic acid
Fluoromisonidazole
D011838 - Radiation-Sensitizing Agents
α-Cyano-4-hydroxycinnamic acid
Profile spectrum of this record is given as a JPEG file.; [Profile] MCH00005.jpg Profile spectrum of this record is given as a JPEG file.; [Profile] MCH00004.jpg
(+)-(R)-2-(4-hydroxy-2-oxo-2,3-dihydrobenzofuran-3-yl)acetonitrile
Kynurenic acid
MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; HCZHHEIFKROPDY-UHFFFAOYSA-N_STSL_0005_Kynurenic acid_2000fmol_180410_S2_LC02_MS02_66; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. D018377 - Neurotransmitter Agents > D018683 - Excitatory Amino Acid Agents > D018691 - Excitatory Amino Acid Antagonists relative retention time with respect to 9-anthracene Carboxylic Acid is 0.374 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.376 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.370 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.372 Kynurenic acid, an endogenous tryptophan metabolite, is a broad-spectrum antagonist targeting NMDA, glutamate, α7 nicotinic acetylcholine receptor. Kynurenic acid is also an agonist of GPR35/CXCR8. Kynurenic acid, an endogenous tryptophan metabolite, is a broad-spectrum antagonist targeting NMDA, glutamate, α7 nicotinic acetylcholine receptor. Kynurenic acid is also an agonist of GPR35/CXCR8. Kynurenic acid, an endogenous tryptophan metabolite, is a broad-spectrum antagonist targeting NMDA, glutamate, α7 nicotinic acetylcholine receptor. Kynurenic acid is also an agonist of GPR35/CXCR8. Transtorine is a quinoline alkaloid, found from Ephedra transitoria, with antibacterial activity[1]. Transtorine is a quinoline alkaloid, found from Ephedra transitoria, with antibacterial activity[1].
Kynurenate
D018377 - Neurotransmitter Agents > D018683 - Excitatory Amino Acid Agents > D018691 - Excitatory Amino Acid Antagonists Kynurenic acid, an endogenous tryptophan metabolite, is a broad-spectrum antagonist targeting NMDA, glutamate, α7 nicotinic acetylcholine receptor. Kynurenic acid is also an agonist of GPR35/CXCR8. Kynurenic acid, an endogenous tryptophan metabolite, is a broad-spectrum antagonist targeting NMDA, glutamate, α7 nicotinic acetylcholine receptor. Kynurenic acid is also an agonist of GPR35/CXCR8. Kynurenic acid, an endogenous tryptophan metabolite, is a broad-spectrum antagonist targeting NMDA, glutamate, α7 nicotinic acetylcholine receptor. Kynurenic acid is also an agonist of GPR35/CXCR8. Transtorine is a quinoline alkaloid, found from Ephedra transitoria, with antibacterial activity[1]. Transtorine is a quinoline alkaloid, found from Ephedra transitoria, with antibacterial activity[1].
octopamine
Octopamine ((±)-p-Octopamine) hydrochloride, a biogenic monoamine structurally related to noradrenaline, acts as a neurohormone, a neuromodulator and a neurotransmitter in invertebrates. Octopamine hydrochloride can stimulate alpha2-adrenoceptors (ARs) in Chinese hamster ovary cells transfected with human alpha2-ARs. Octopamine hydrochloride increased glycogenolysis, glycolysis, oxygen uptake, gluconeogenesis and the portal perfusion pressure[1][2][3]. Octopamine ((±)-p-Octopamine) hydrochloride, a biogenic monoamine structurally related to noradrenaline, acts as a neurohormone, a neuromodulator and a neurotransmitter in invertebrates. Octopamine hydrochloride can stimulate alpha2-adrenoceptors (ARs) in Chinese hamster ovary cells transfected with human alpha2-ARs. Octopamine hydrochloride increased glycogenolysis, glycolysis, oxygen uptake, gluconeogenesis and the portal perfusion pressure[1][2][3]. Octopamine ((±)-p-Octopamine) hydrochloride, a biogenic monoamine structurally related to noradrenaline, acts as a neurohormone, a neuromodulator and a neurotransmitter in invertebrates. Octopamine hydrochloride can stimulate alpha2-adrenoceptors (ARs) in Chinese hamster ovary cells transfected with human alpha2-ARs. Octopamine hydrochloride increased glycogenolysis, glycolysis, oxygen uptake, gluconeogenesis and the portal perfusion pressure[1][2][3].
(Z)-5-(FLUOROMETHYLENE)-4-PHENYL-1H-PYRROL-2(5H)-ONE
1-[(Aminooxy)methyl]-4-methoxybenzene hydrochloride
1H-Benzimidazole-2-acetaldehyde,alpha-(hydroxyimino)-(9CI)
1-[(Aminooxy)methyl]-3-methoxybenzene hydrochloride
diexo-3-amino-bicyclo[2.2.1]hept-5-ene-2-carboxylic acid hydrochloride
Adenine hydrochloride
Adenine monohydrochloride hemihydrate is an endogenous metabolite.
2-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]ethanol
7-Carboxy-1-hydroxyisoquinoline, 7-Carboxy-1-hydroxy-2-azanaphthalene
1-(trifluoromethyl)Cyclopentan-1-amine hydrochloride
2-(Trifluoromethyl)-6,7-dihydro-5H-pyrrolo[3,4-d]pyrimidine
Dopamine hydrochloride
D018373 - Peripheral Nervous System Agents > D001337 - Autonomic Agents > D013566 - Sympathomimetics C78272 - Agent Affecting Nervous System > C29747 - Adrenergic Agent > C87053 - Adrenergic Agonist D018377 - Neurotransmitter Agents > D015259 - Dopamine Agents D020011 - Protective Agents > D002316 - Cardiotonic Agents D002317 - Cardiovascular Agents
(2S,4R)-4-(prop-2-ynyl)pyrrolidine-2-carboxylic acid hydrochloride
1H-Benzimidazole-5-carbonitrile,2,3-dihydro-3-methoxy-2-oxo-(9CI)
(S)-(-)-2-ISOCYANATO-4-(METHYLTHIO)BUTYRIC ACID METHYL ESTER
1-[(Aminooxy)methyl]-2-methoxybenzene hydrochloride
Norfenefrine hydrochloride
C78272 - Agent Affecting Nervous System > C29747 - Adrenergic Agent > C87053 - Adrenergic Agonist D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents > D000322 - Adrenergic Agonists Norfenefrine hydrochloride is an orally active, endogenously found α-adrenergic agonist and can be used for the research of female stress incontinence[1][2].
5-(2-FURYL)NICOTINIC ACID 975-(2-FURYL)PYRIDINE-3-CARBOXYLIC ACID
Fluoromisonidazole F-18
C1446 - Radiopharmaceutical Compound > C2124 - Radioconjugate D011838 - Radiation-Sensitizing Agents
Octopamine hydrochloride
Octopamine ((±)-p-Octopamine) hydrochloride, a biogenic monoamine structurally related to noradrenaline, acts as a neurohormone, a neuromodulator and a neurotransmitter in invertebrates. Octopamine hydrochloride can stimulate alpha2-adrenoceptors (ARs) in Chinese hamster ovary cells transfected with human alpha2-ARs. Octopamine hydrochloride increased glycogenolysis, glycolysis, oxygen uptake, gluconeogenesis and the portal perfusion pressure[1][2][3]. Octopamine ((±)-p-Octopamine) hydrochloride, a biogenic monoamine structurally related to noradrenaline, acts as a neurohormone, a neuromodulator and a neurotransmitter in invertebrates. Octopamine hydrochloride can stimulate alpha2-adrenoceptors (ARs) in Chinese hamster ovary cells transfected with human alpha2-ARs. Octopamine hydrochloride increased glycogenolysis, glycolysis, oxygen uptake, gluconeogenesis and the portal perfusion pressure[1][2][3]. Octopamine ((±)-p-Octopamine) hydrochloride, a biogenic monoamine structurally related to noradrenaline, acts as a neurohormone, a neuromodulator and a neurotransmitter in invertebrates. Octopamine hydrochloride can stimulate alpha2-adrenoceptors (ARs) in Chinese hamster ovary cells transfected with human alpha2-ARs. Octopamine hydrochloride increased glycogenolysis, glycolysis, oxygen uptake, gluconeogenesis and the portal perfusion pressure[1][2][3].
3-Dehydroquinate
A hydroxy monocarboxylic acid anion that is obtained by removal of a proton from the carboxylic acid group of 3-dehydroquinic acid.
thiotepa
L - Antineoplastic and immunomodulating agents > L01 - Antineoplastic agents > L01A - Alkylating agents > L01AC - Ethylene imines C274 - Antineoplastic Agent > C186664 - Cytotoxic Chemotherapeutic Agent > C2842 - DNA Binding Agent D000970 - Antineoplastic Agents > D019653 - Myeloablative Agonists D007155 - Immunologic Factors > D007166 - Immunosuppressive Agents D009676 - Noxae > D000477 - Alkylating Agents
Gly-Asp(1-)
A peptide anion obtained by deprotonation of the terminal and side-chain carboxy groups and protonation of the terminal amino group of Gly-Asp; major species at pH 7.3.
Asp-Gly(1-)
A peptide anion obtained by deprotonation of the terminal and side-chain carboxy groups and protonation of the terminal amino group of Asp-Gly; major species at pH 7.3.
1.2-dihydro-2-oxoduindine-4-carboxylic acid
{"Ingredient_id": "HBIN000795","Ingredient_name": "1.2-dihydro-2-oxoduindine-4-carboxylic acid","Alias": "NA","Ingredient_formula": "C10H7NO3","Ingredient_Smile": "C1=CC=C2C(=C1)C(=CC(=O)N2)C(=O)O","Ingredient_weight": "NA","OB_score": "NA","CAS_id": "NA","SymMap_id": "NA","TCMID_id": "38411","TCMSP_id": "NA","TCM_ID_id": "NA","PubChem_id": "NA","DrugBank_id": "NA"}
1-oxo-1,2-dihydroisoquinoline-4-carboxylic acid
{"Ingredient_id": "HBIN002940","Ingredient_name": "1-oxo-1,2-dihydroisoquinoline-4-carboxylic acid","Alias": "NA","Ingredient_formula": "C10H7NO3","Ingredient_Smile": "C1=CC=C2C(=C1)C(=CNC2=O)C(=O)O","Ingredient_weight": "189.17 g/mol","OB_score": "NA","CAS_id": "NA","SymMap_id": "NA","TCMID_id": "40884","TCMSP_id": "NA","TCM_ID_id": "NA","PubChem_id": "643161","DrugBank_id": "NA"}
