the composition of the essential oil from the stalks and flowers of rheum ribes l., growing in iran, were extracted by hydrodistillation and analyzed by gc-ms. thirty constituents representing 93.84% of rheum oil were identified.  the oil was found to be rich in hydrocarbons especially long-chain n-alkanes (80.81%). the most abundant components in the oil included tricosane (26.29%), heneicosan...

BACKGROUND Da Huang (Radix et Rhizoma Rhei) is the dried root or rhizome of Rheum palmatum L., Rheum tanguticum Maxim ex Balf. or Rheum officinale Braill of family Polygonaceae. It has heat clearing, damp drying, fire purging and toxin removing effects. Because of its definite curative efficacy, it has been widely applied in clinical settings. OBJECTIVE To study the inhibitory effect of emodi...

Ann Rheum Dis 2009;68:1367–1368. doi:10.1136/ard.2008.099093 REFERENCES 1. Mladenovic V, Domljan Z, Rozman B, Jajic I, Mihajlovic D, Dordevic J, et al. Safety and effectiveness of leflunomide in the treatment of patients with active rheumatoid arthritis. Results of a randomized, placebo-controlled, phase II study. Arthritis Rheum 1995;38:1595–603. 2. Kalgutkar AS, Nguyen HT, Vaz AD, Doan A, Dal...

Twelve clinical trials have documented that prednisone or prednisolone in doses of 10 mg/day or less is efficacious to improve function, maintain status and/or slow radiographic progression in patients with rheumatoid arthritis (RA). An early trial reported by de Andrade et al. [Ann Rheum Dis 1964; 23: 158–162] in 1964 indicated that 5 mg of prednisolone at night was preferred to 5 mg of predni...

consensus statement on preliminary classification criteria for definite antiphospholipid syndrome: report of an international workshop. Arthritis Rheum 1999;42:1309–11. 2. Sanna G, Bertolaccini ML, Cuadrado MJ, Khamashta MA, Hughes GR. Central nervous system involvement in the antiphospholipid (Hughes) syndrome. Rheumatology 2003;42:200–13. 3. Brey RL, Abbott RD, Curb JD et al. Beta 2-glycoprot...

Twelve clinical trials have documented that prednisone or prednisolone in doses of 10 mg/day or less is efficacious to improve function, maintain status and/or slow radiographic progression in patients with rheumatoid arthritis (RA). An early trial reported by de Andrade et al. [Ann Rheum Dis 1964; 23: 158–162] in 1964 indicated that 5 mg of prednisolone at night was preferred to 5 mg of predni...

“General pronouncements on the significance of the plant acids are at present probably of little value. . . The true significance of the acid metabolism of plants may perhaps lie close to Kostytchev’s later point of view that these acids are the building stones from which some of the complex plant products originate. . . The plant acids are possibly convertible into amino acids and proteins, co...