Both methotrexate and vitamin D3 are used in combination for the treatment of various diseases. The aim of this study is to highlight the effect of vitamin D3 on methotrexate-induced jejunum damage using biochemical and histopathological studies. Seven groups of both sexes of rats were selected and treated as follows: (Group I and Group II) : control 1,control 2 (I.P normal saline) daily for 14 and 21 days respectively ; (Group III and Group IV) :vitamin D3 groups (500 IU/rat/day) orally for 14 and 21 days, respectively;(Group V): once daily dose of methotrexate 20mg/kg, I.P injected for 4 days;(Group VI):vitamin D3 (500 IU/rat/day) once daily for 14 days and methotrexate (20 mg/kg I.P) injected only at day 10;.(Group VII) vitamin D3 (500 IU/rat/day) orally for 21 days and methotrexate (20 mg/kg I.P) injected only at day 17; then the jejunum was removed and used for measuring malondialdehyde (MDA) content, total antioxidant capacity (TAOC) level; in addition histopathological study of jejunum tissue. Administration of vitamin D3 for 21 days and a single dose of methotrexate at day 17 resulted in non-significant difference (P>0.05) in MDA; while significant reduction (P<0.05) in the TAOC level in jejunum tissue; furthermore , sever villi damage ,crypts abscess, epithelial atrophy , mixed inflammatory cells infiltrate and goblet cells depletion were observed in comparison with methotrexate group. So the study demonstrates that vitamin D3 plays a synergistic role with methotrexate therefore the combined use of vitamin D3 and methotrexate may be used as a strategy to overcome dose limitations and side effects when use for the treatment of cancer, rheumatoid arthritis and psoriasis. Key words: Jejunum damage, Methotrexate, Oxidative stress, Rats, Vitamin D3.
GA Al Omran, AA Noaimi, Z Al Madfai, H Al Hamamy, Journal of the Faculty of Medicine Baghdad, 2012
When sites of new communication occurs which represents the merit of the development of communication technology which is characterized by the services of ( facebook-twiter-corapora-youtube-mass space-friendster-flicker-willnecked in addition to the direct services for viber-whatsup-telgram-and chat on) play important role in changing the infrastructure of Arabic societies which are consideredas closed and not changeable societies during near period and the significance of this study comes from the importounce of this subject which is considered as anew trend of the age on the field of media and public response and acceptance inspite of what is known about Arabic society-it doesn’t accept change-this occurance is associated with terms
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Background: This study aimed to apply a high-power pulsed alexandrite laser in vitro, the researchers tested different exposure periods, pulse lengths, and laser fluencies to see which dosage was most successful against S. aureus bacteria, which had developed resistance to many antibiotics. Method: Three bacteria samples were exposed to laser beams for 30 seconds with a 5ms pulse duration and a laser fluency of 5J/cm2. The process was repeated with laser fluencies of 10, 15, and 20. Results: The study was carried out by using different doses of Alexandrite laser. Results: There are significant differences (p = 0.05) in the mean number of bacteria colonies exposed for 30 and 60 seconds at any laser fluencies utilized in the present i
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