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This study included the development of the pronephros kidney in one invasive species in Iraq, the sailfin fish Poecelia latipinna which spread in the aquatic surfaces particularly the marshes which situated in the south portion of Iraq. This study depends on the length of the embryos. The bilateral progenitor pronephric cells appear in the mesodermal plate in embryo 1.5 mm in long. In embryo 2mm in long, the histological sections showed the occurrence of the progenitor cells with the precursors of the blood cells near the notochord and dorsal aorta. The undifferentiated pronephric tubules formed in the embryo 4mm in long and the pronephric kidney started to surround with connective tissue cells. In embryo 5mm in long, the histological sections appeared that the pronephric tissue completely surrounded by connective tissue to form capsule, the tubules differentiated to proximal and distal tubules and the glomeruli appeared as well, also the pronephric ducts were completed in this stage to fuse with the cloaca.

Metabolic syndrome is a global health problem identified in large scale of population worldwide with many complications. Arthropathy also is a great health problem that can add burden on patients with metabolic syndrome. Our issue was to evaluate the most commonly type of arthropathy in association with metabolic syndrome. We collected 90 Egyptian patients of arthropathy from internal medicine clinic at New Kasr El-Aini Hospital during the period from December 2013 to June 2014. All the patients were evaluated carefully by complete history taking, full clinical examination and full laboratory investigations. According to the types of arthropathy found in our patients they were classified into 3 groups: osteoarthritis, gouty arthritis and rheumatoid arthritis. The results obtained from our patients were tabulated and statistically analyzed. Our results concluded that osteoarthritis was the most common type of arthropathy found in association with metabolic syndrome suggesting that control of components of metabolic syndrome can reduce the chance of developing osteoarthritis in metabolic syndrome patients. Key words : Metabolic syndrome – Arthropathy - Egyptian REFERENCES Cooper, C., Snow, S. and McAlindon T.E. (2000): Risk factors for the incidence and progression of radiographic knee osteoarthritis. Arthritis Rheum; 43:995–1000. Dahaghin, S.,Bierma-Zeinstra ,M. A., Koes, B. W., Hazes, J .M. W. , Pols, H. A. P.(2007): Do metabolic factors add to the effect of overweight on hand osteoarthritis? The Rotterdam Study. Ann Rheum Dis; 66:916-920. Karvounaris, S.A., Sidiropoulos, P.I., Papadakis, J.A., Spanakis, E.K., Bertsias, G.K., Kritikos, H.D., Ganotakis, E.S., Boumpas, D.T. (2006): Metabolic syndrome is common among middle – to – older aged Mediterranean patioents with rheumatoid arthritis and correlates with disease activity: a retorospective, cross- sectional, controlled, study Ann Rheum Dis, 66:28-33. Hart,D.J., Doyle, D.V. and Spector, T.D.(1995): Association between metabolic factors and knee osteoarthritis in women : The Chingford Study. J Rheumatol; 22:1118-1123. National Cholesterol Education Program (NCEP) expert panel on detection, evaluation, and treatment of high blood cholesterol in adults (Adult Treatment Panel {ATP III}). Final report (Third report) 2002. Circulation; 106: 3143–3421. Reilly, M.P., Rader, D.J., (2003): The metabolic syndrome: more than the sum of arts? Circulation , 108:1546-1551. Velasquez, M.T., Katz, J.D. (2010): Osteoarthritis: another component of metabolic syndrome, metabolic Syndrome related disorders;8(4):295-305.