High-molecular-weight fucans for treating fibrous adhesions and other diseases and conditions

A high-molecular-weight fucan wherein the high-molecular-weight fucan consists essentially of a molecular weight distribution wherein between about 61% w/w and 80% w/w of the molecular weight distribution of the fucan is between about 200 kDa and 1600 kDa when measured using an aqueous gel permeation chromatography set up consisting essentially of:

• one 300 mm analytical gel permeation chromatography column with a 7.8 mm inner diameter packed with hydroxylated polymethacrylate-based gel, having an effective molecular weight range of between about 50 kDa and about 5,000 kDa, one 300 mm analytical gel permeation chromatography column with a 7.8 mm inner diameter packed with hydroxylated polymethacrylate-based gel, having an effective molecular weight range of between about 1 kDa and about 6,000 kDa and one 40 mm guard column with a 6 mm inner diameter packed with hydroxylated polymethacrylate-based gel, the two analytical gel permeation chromatography columns and the one guard column contained in a column compartment at about 30° C.;
• a refractive index detector at about 30° C.;
• 0.1M sodium nitrate mobile phase run at 0.6 mL/min;
• and
• quantification against a peak molecular weight standard curve consisting essentially of a first dextran standard with a peak molecular weight of about 2,200 kDa, a second dextran standard with a peak molecular weight of between about 720 kDa and about 760 kDa, a third dextran standard with a peak molecular weight between about 470 kDa and about 510 kDa. a fourth dextran standard with a peak molecular weight between about 370 kDa and about 410 kDa, a fifth dextran standard with a peak molecular weight between about 180 kDa and about 220 kDa. and a sixth dextran standard with a peak molecular weight between about 40 kDa and 55 kDa.