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2. 7-Methylxanthine - Wikipedia

   en.wikipedia.org/wiki/7-methylxanthine

   7-Methylxanthine ( 7-MX ), also known as heteroxanthine, is an active metabolite of caffeine (1,3,7-trimethylxanthine) and theobromine (3,7-dimethylxanthine). [1] [2] It is a non-selective antagonist of the adenosine receptors. [1] [2] The compound may slow the progression of myopia (nearsightedness). [1] [2] It is under investigation for this ...

3. 1,3,7-Trimethyluric acid - Wikipedia

   en.wikipedia.org/wiki/1,3,7-Trimethyluric_acid

   1,3,7-Trimethyluric acid, also referred to as trimethyluric acid and 8-oxy-caffeine, is a purine alkaloid that is produced in some plants and occurs as a minor metabolite of caffeine in humans. The enzymes that metabolize caffeine into 1,3,7-trimethyluric acid in humans include CYP1A2 , CYP2E1 , CYP2C8 , CYP2C9 , and CYP3A4 .

4. List of ISO 3166 country codes - Wikipedia

   en.wikipedia.org/wiki/List_of_ISO_3166_country_codes

   See the ISO 3166-3 standard for former country codes. British Virgin Islands – See Virgin Islands (British) . Burma – See Myanmar . Cape Verde – See Cabo Verde . Caribbean Netherlands – See Bonaire, Sint Eustatius and Saba . China, The Republic of – See Taiwan (Province of China) . Democratic People's Republic of Korea – See Korea ...

5. Homebuyers need to put more than $127,000 — or 35% - AOL

   www.aol.com/finance/homebuyers-put-more-127-000...

   Homebuyers need to put more than $127,000 — or 35% — down to buy a typical US home if they don't want to pay more than 30% of their income on housing Chris Clark June 28, 2024 at 7:28 AM

6. List of country calling codes - Wikipedia

   en.wikipedia.org/wiki/List_of_country_calling_codes

   Zone 5 uses eight 2-digit codes (51–58) and two sets of 3-digit codes (50x, 59x) to serve South and Central America. Zone 6 uses seven 2-digit codes (60–66) and three sets of 3-digit codes (67x–69x) to serve Southeast Asia and Oceania. Zone 7 uses an integrated numbering plan; two digits (7x) determine the area served: Russia or Kazakhstan.

7. Caffeine - Wikipedia

   en.wikipedia.org/wiki/Caffeine

   Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class. [9] It is mainly used as a eugeroic ( wakefulness promoter) or as a mild cognitive enhancer to increase alertness and attentional performance. [10] [11] Caffeine acts by blocking binding of adenosine to the adenosine A 1 receptor, which enhances release of the ...