trv - Although your intuition may not yet accept the effect of reduced oxygen in the blood on uric acid and gout, you may decide to change your mind after looking at these medical journal articles. They discuss this phenomenon from such diverse causes as insufficient oxygen supplied to critically ill patients, sleep apnea, moving to a much higher elevation, and breathing difficulties with chronic obstructive pulmonary disease (COPD).
Grum, CM. "Cells in Crisis: Cellular Bioenergenics and Inadequate Oxygenation in the Intensive Care Unit," Chest 102(2), 1992, pp. 329-30.
Hasday JD, Grum CM. "Nocturnal Increase of Urinary Uric Acid:Creatine Ratio: a Biological Correlate of Sleep-Associated Hypoxemia," American Review of Respiratory Diseases 135, 1987, pp.534-38.
Plywaczewski, R., et al. "Hyperuricemia in Males with Obstructive Sleep Apnea (OSA)," Pneumonol Alergol Pol. 73(3) 2005, pp. 254-259.
Plywaczewski, R., et al. "Hyperuricemia in Females with Obstructive Sleep Apnea," Pneumonol Alergol Pol. 74(2) 2006, pp. 159-165.
Ruiz Garcia, A., et al, "Blood Uric Acid Levels in Patients with Sleep-Disordered Breathing." Archivos de Bronconeumologia 42 (10), October 2006, pp. 492-500.
McKeon, JL., et al. "Urinary Uric Acid with Obstructive Sleep Apnea," American Review of Respiratory Diseases 142 (1), 1990, pp. 8-13.
Saito, H., et al, "Tissue Hypoxia in Sleep Apnea Syndrome as Assessed by Uric Acid and Adenosine," Chest 121 (55), November 1, 2002, pp. 1686-1694.
Sahebjani, H., "Changes in Urinary Uric Acid Excretion in Obstructive Sleep Apnea Before and After Therapy with Nasal Continuous Positive Airway Pressure," Chest 113(6), 1998, pp. 1604-1608.
Du, X., et al. "Significance of the Changes of Urinary Uric Acid in OSAHS Before and After UPPP," Lin Chuang Er Bi Hou Ke Za Zhi 19(1

, Sept. 2005, pp. 826-827.
Garcia Panchon, E., et al, "Uric Acid and Its Relationship to Creatinine Levels and Hypoxia," Archivos de Bronconeumologia 43 (9), September 2007, p. 523.
Jefferson, JA, et al, "Hyperuricemia, hypertension, and proteinuria associated with high-altitude polycythemia," American Journal of Kidney Diseases 39 (6), June 2002, pp. 1135-1142.
Khokhar, N., "Hyperuricemia and Gout in Secondary Polycythemia Due to Chronic Obstructive Pulmonary Disease," Journal of Rheumatology 7(1), Jan.-Feb. 1980, pp. 114-116.
Khokhar, N., "Gouty Arthritis in Chronic Obstructive Pulmonary Disease," Archives of Internal Medicine 142(4), Apr. 1982, p. 838.