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XANTHINE [6 records]

Record 1 2017-12-07

English

Subject field(s)
  • Centesis and Samplings
CONT

The measurement of hypxanthine, xanthine, inosine and uridine in umbilical cord blood and fetal scalp blood samples as a measure of fetal hypoxia.

Key term(s)
  • foetal scalp sample
  • foetal scalp blood sample

French

Domaine(s)
  • Ponctions et prélèvements
OBS

Les auteurs rapportent un cas où le diagnostic d'anémie fœtale grave par saignement d'un vasa previa, complication obstétricale rare, a été porté à temps grâce à l'hématocrite prélevé sur le cuir chevelu du fœtus.

Spanish

Save record 1

Record 2 2013-11-15

English

Subject field(s)
  • Genetics
DEF

Any of a group of chemical compounds of which purine is the base, including adenine, guanine, xanthine and hypoxanthine which are constituents of nucleic acids, nucleotides and coenzymes.

OBS

The term purine is often used as a synonym for purine base.

French

Domaine(s)
  • Génétique
DEF

Substance azotée dérivant du noyau purine, qui entre dans la constitution des nucléotides, des acides nucléiques et de certaines coenzymes. Suivant la substitution du noyau purine, on distingue l'adénine, la guanine, la xanthine et l'hypoxanthine.

OBS

Le terme purine est souvent employé comme synonyme de base purique.

Spanish

Campo(s) temático(s)
  • Genética
DEF

Base nitrogenada derivada de la purina, que forma parte de los nucleótidos, de los ácidos nucleicos y de muchas coenzimas.

Save record 2

Record 3 2013-07-12

English

Subject field(s)
  • Medication
  • Vessels (Medicine)
Universal entry(ies)
6493-05-6
CAS number
C13H18N4O3
formula, see observation
DEF

A xanthine derivative that reduces blood viscosity and increases erythrocyte flexibility, microcirculatory flow, and tissue oxygenation...

OBS

Active ingredient sold under a large number of commercial (trade) names such as Trental.

OBS

Chemical formula: C13H18N4O3

French

Domaine(s)
  • Médicaments
  • Vaisseaux (Médecine)
Entrée(s) universelle(s)
6493-05-6
CAS number
C13H18N4O3
formula, see observation
CONT

La pentoxifylline appartient au groupe de médicaments appelés agents vasoactifs. Ces médicaments exercent une action qui améliore le débit sanguin dans les bras et les jambes.

OBS

Principe actif commercialisé, entre autres, sous le nom de Trental.

OBS

Formule chimique : C13H18N4O3

Spanish

Campo(s) temático(s)
  • Medicamentos
  • Redes vasculares (Medicina)
Entrada(s) universal(es)
6493-05-6
CAS number
C13H18N4O3
formula, see observation
Save record 3

Record 4 2012-06-08

English

Subject field(s)
  • Medicinal Plants
  • Drug and Beverage Crops
  • Biochemistry
  • Biotechnology
DEF

[A] chemical (alkaloid) that can be used to induce the doubling of chromosomes.

CONT

Colchicine and its derivatives are used in the laboratory for cytologic studies to arrest cell division in mid-metaphase by disrupting the mitotic spindle fibers. Clinically, it is used to provide relief from acute attacks of gout and in conjunction with uricosuric agents(probenecid or sulfinpyrazone) and xanthine oxidase inhibitors(allopurinol) prophylactically to prevent acute attacks.

OBS

[It is] used by cytogeneticists in the synthesis of new grain species.

French

Domaine(s)
  • Culture des plantes médicinales
  • Culture des plantes alcaloïfères
  • Biochimie
  • Biotechnologie
DEF

Agent chimique (alcaloïde) qui peut servir à provoquer le dédoublement des chromosomes.

OBS

La colchicine est le meilleur traitement pour inhiber la formation de la paroi cellulaire et ainsi la séparation des chromosomes à l'anaphase.

OBS

Utilisé par les cytogénéticiens pour la synthèse de nouvelles espèces de grain.

Spanish

Campo(s) temático(s)
  • Cultivo de plantas medicinales
  • Cultivo de plantas que contienen alcaloides
  • Bioquímica
  • Biotecnología
DEF

Alcaloide obtenido del azafrán de otoño Colchicum autumnale, que inhibe la formación del huso mitótico.

OBS

Cuando se aplica durante la mitosis, los cromosomas son incapaces de separarse durante la anafase. Esta propiedad se utiliza para duplicar el número de cromosomas. También se emplea para interrumpir la mitosis en la metafase, estado en el que los cariotipos se visualizan con mayor facilidad.

Save record 4

Record 5 2011-03-08

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
(NH4)6Mo7O24
formula, see observation
Mo7O24·6H4N
formula, see observation
H24Mo7N6O24
formula, see observation
12027-67-7
CAS number
CONT

Ammonium molybdate is... a representative soluble molybdenum compound. Molybdenum is an essential element for the function of nitrogenase in plants and as a cofactor for enzymes including xanthine oxidoreductase, aldehyde oxidase, and sulfide oxidase in animals.(NH4) 6Mo7O24 is the form of ammonium molybdate frequently sold because it is easily prepared at high purity by crystallization from aqueous solutions of MoO3 containing excess NH3.... AM is used for preparing specialty catalysts and wherever a highly aqueous soluble form of molybdate, free of metal cations, is required. AM is also used as an analytical reagent and as a catalyst for dehydrogenation and desulfurization in petroleum and coal technology...

OBS

hexaammonium molybdate: usual name.

OBS

ammonium heptamolybdate; ammonium molybdate; generic names (to be avoided).

OBS

AM: This might be an in-house or a non-recognized abbreviation; not to be used alone, to avoid any risk of confusion.

OBS

Chemical formula: (NH4)6Mo7O24 or Mo7O24·6[H4N or H24Mo7N6O24

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
(NH4)6Mo7O24
formula, see observation
Mo7O24·6H4N
formula, see observation
H24Mo7N6O24
formula, see observation
12027-67-7
CAS number
OBS

molybdate d'hexaammonium : nom usuel.

OBS

heptamolybdate d'ammonium; molybdate d'ammonium : noms génériques (à éviter, imprécis).

OBS

Formule chimique : (NH4)6Mo7O24 ou Mo7O24·6[H4N ou H24Mo7N6O24

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Entrada(s) universal(es)
(NH4)6Mo7O24
formula, see observation
Mo7O24·6H4N
formula, see observation
H24Mo7N6O24
formula, see observation
12027-67-7
CAS number
OBS

Fórmula química: (NH4)6Mo7O24 o Mo7O24·6[H4N o H24Mo7N6O24

Save record 5

Record 6 2011-02-18

English

Subject field(s)
  • Chemical Elements and Compounds
  • Medication
Universal entry(ies)
58-55-9
CAS number
C7H8N4O2
formula, see observation
DEF

A methyl xanthine derivative from tea with diuretic, smooth muscle relaxant, bronchial dilation, cardiac and central nervous system stimulant activities.

OBS

Active ingredient commonly sold under the name Theo-Dur (a systemic drug).

OBS

Chemical formula: C7H8N4O2

French

Domaine(s)
  • Éléments et composés chimiques
  • Médicaments
Entrée(s) universelle(s)
58-55-9
CAS number
C7H8N4O2
formula, see observation
DEF

Alcaloïde cristallin, extrait des feuilles de thé, isomère de la théobromine, diurétique, vasodilatateur coronarien et bronchodilatateur utilisé dans le traitement de l'asthme.

OBS

Principe actif couramment commercialisé sous le nom de Theo-Dur (médicament à action générale).

OBS

Formule chimique : C7H8N4O2

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Medicamentos
Entrada(s) universal(es)
58-55-9
CAS number
C7H8N4O2
formula, see observation
OBS

Fórmula química: C7H8N4O2

Save record 6

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