methylxanthin unspecified sense

concept · 1 mention

A metabolic byproduct of caffein at therapeutic doses that is eliminated through urine

Other senses of “methylxanthin”

Connections

The concepts, people, and places this entity is most linked to by claims — node size is mention count, colour is type, dashed nodes are other senses of the same word.

Concept

Defining properties

escapes with urine ⟨therapeutic dose⟩
is metabolic product of caffeine
is broken up in the body with formation of therapeutic dose of caffein

Perspectives

Claims grouped by the voice that makes them.

William H. Ukers (author)

methylxanthin escapes with urine ⟨therapeutic dose⟩
assertsneutralsource: coffee-pg28500
methylxanthin, which escapes with the urine
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage: 'While the therapeutic dose of caffein is broken up in the body with the formation of methylxanthin, which escapes with the urine...' The subject, predicate, and object are all explicitly mentioned in the exact context specified.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (passage presents this as the author's statement, not attributed to a named source). Stance is 'asserts' which matches the declarative presentation. Sentiment is neutral, appropriate for factual/scientific content. Time qualifiers are all null, which is correct as the passage provides no temporal scope. Context is 'therapeutic dose' which accurately reflects the passage's restriction ('the therapeutic dose of caffein'). The quote appears verbatim and directly supports the claim about methylxanthin escaping with urine.
therapeutic dose of caffein is broken up in the body with formation of methylxanthin
assertsneutralsource: coffee-pg28500
the therapeutic dose of caffein is broken up in the body with the formation of methylxanthin
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage: 'While the therapeutic dose of caffein is broken up in the body with the formation of methylxanthin, which escapes with the urine, the toxic dose is at least in part eliminated by the kidney unchanged.' The subject, predicate, and object match the passage exactly.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly identified as 'author' since the passage presents this as factual information without attribution to a named source. The stance is appropriately 'asserts' as the passage states this as fact. The sentiment is correctly neutral - the passage presents a biochemical process without positive or negative connotation. The time qualifiers are correctly null since the passage provides no temporal scope. The context is appropriately empty as the passage does not restrict the claim to a specific sense or role. The quote is verbatim from the passage and directly supports the claim.

Bondzynski, ST. and Gottlieb, R.

methylxanthin is metabolic product of caffeine 1895
assertsneutralsource: coffee-pg28500
Methylxanthin, ein Stoffwechselprodukt des Theobromin und Coffein
judge verdicts (4)
- groundedness 1.00 pass — The claim is directly stated in the passage. The Bondzynski and Gottlieb citation explicitly describes methylxanthin as 'ein Stoffwechselprodukt des Theobromin und Coffein' (a metabolic product of theobromin and caffeine), and Albanese's 1899 article also mentions the formation of 3-Methyl-xanthin from caffeine in the animal organism.
- qualifier_fidelity 0.60 fail — The viewpoint qualifier is incorrect. The passage attributes this claim to named sources (BONDZYNSKI, ST. and GOTTLIEB, R.), not to an anonymous 'author'. The claim should specify these researchers as the viewpoint, not 'author'. Additionally, the time qualifiers are problematic: valid_from and valid_to should be null since the passage provides only publication dates (1895), not a temporal scope of validity for the claim itself. The quote is accurate and the stance/sentiment are faithful.
- groundedness 1.00 pass — The claim is directly supported by the passage. The bibliographic entry for Bondzynski and Gottlieb's 1895 work explicitly states 'Ueber Methylxanthin, ein Stoffwechselprodukt des Theobromin und Coffein' (On Methylxanthin, a metabolic product of Theobromin and Caffeine), confirming that methylxanthin is presented as a metabolic product of caffeine according to these authors.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint correctly names Bondzynski and Gottlieb as the source authors. The stance 'asserts' is appropriate as the passage presents their work as a factual claim. The sentiment is neutral, matching the scientific nature of the statement. The time is correctly set to 1895, matching the publication date shown in the passage. The context is appropriately empty as the passage provides no specific restriction of sense or role. The quote is verbatim from the passage title (adjusting for original German: 'Methylxanthin, ein Stoffwechselprodukt des Theobromin und Coffein') and directly supports the claim about methylxanthin being a metabolic product of caffeine.

Change over time

1895

is metabolic product of caffeine