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1.
Suez Canal University Medical Journal. 2008; 11 (1): 53-58
in English | IMEMR | ID: emr-90489

ABSTRACT

The influence of static magnetic fields [SMFs] or modulated magnetic fields [MMFs] on biological systems has been a topic of considerable interest for many years. At the current state of knowledge, the biological effects, both in vivo and in vitro, of SMFs have yet to be unequivocally interpreted. Induced electric currents, unlike time-varying electromagnetic fields, are not associated with these fields except during activation and deactivation or when there is movement within the field. The study involved the effect of magnetic field on the oxidative state of the liver tissue. The study was conducted on Sparague-Dawely male rats of an average weight of 140-160 gm. The exposure period was 7 days [2 hours/day]. The applied field also caused an increase in the lipid peroxide [H2O2] and a decrease [p<0.05] in its glutathione [GSH] concentration. Results, as the spectroscopic examination of the serum illustrates, suggest that the redox [reduction/oxidation reaction] potential of NADH/NAD is disturbed as a result of exposure to magnetic field resulting in an exhaustion of NADH. Consequently, precursors of NADH, such as kynurenine, tyrosine and tryptophan, are supplied by the body


Subject(s)
Male , Animals, Laboratory , Liver , Oxidative Stress , Glutathione , Lipid Peroxidation , Oxidation-Reduction , Rats, Sprague-Dawley
2.
Suez Canal University Medical Journal. 2008; 11 (1): 59-64
in English | IMEMR | ID: emr-90490

ABSTRACT

A number of epidemiological studies have suggested an increased risk for cancers, particularly leukemia and brain and breast cancer, with residential or occupational exposure to 50/60 Hz magnetic fields. Such as associated with the generation, distribution and utilization of electric power. However, researchers concluded that the results from such epidemiological studies have been inconsistent and contradictory and do not constitute reliable evidence of an association between magnetic field exposure and some forms of cancer as reported. The present study has been conducted to evaluate the influence of 50 Hz magnetic field on some liver enzymes tests; alanine aminotransferase [ALT], aspartate aminotransferase [AST], alkaline phosphatase [ALP], serum bilirubin, serum albumin and serum protein. The study was conducted on Sparague-Dawely male rats of an average weight of 140-160 gm. The exposure period was 7 days [2 hours/day]. The results showed an increase [p<0.05] in all investigated liver enzymes


Subject(s)
Male , Animals, Laboratory , Liver/enzymology , Liver Function Tests , Alanine Transaminase/blood , Bilirubin/blood , Serum Albumin , Blood Proteins , Aspartate Aminotransferases/blood , Rats, Sprague-Dawley , Alkaline Phosphatase/blood
3.
Egyptian Journal of Biophysics and Biomedical Engineering. 2002; 3: 1-12
in English | IMEMR | ID: emr-59179

ABSTRACT

1H- NMR spectroscopy is an excellent technique for investigating the structure-function relationship of Hb. Due to the presence of the unpaired electrons in the high spin ferrous atoms in deoxy Hb and owing to the presence of the highly conjugated porphyrins in the Hb molecules, the proton chemical shifts of various Hb derivatives cover a wide range. 1H-NMR researches of paramagnetic hemoproteins have shown that the heme proton spectra can be used to probe the heme environment in three of anaemia


Subject(s)
Humans , Male , Female , Anemia, Iron-Deficiency , beta-Thalassemia , Magnetic Resonance Spectroscopy , Glucosephosphate Dehydrogenase Deficiency , Hemoglobins
4.
Zagazig Medical Association Journal. 1994; 7 (3): 387-396
in English | IMEMR | ID: emr-35998

ABSTRACT

Rectus sheath haematoma is actually rare condition, but due to its possible grave presentation it is in need for quick, informative diagnosis which could be obtained by U.S. examination and also the U.S. can help in follow-up of the cases treated either conservatively or surgically. This work presented the experience of U.S. in 14 cases of rectal sheath


Subject(s)
Humans , Male , Female , Abdominal Injuries , Rectal Diseases , Ultrasonography/methods , Abdominal Pain/pathology
5.
Zagazig Medical Association Journal. 1992; 5 (3): 137-143
in English | IMEMR | ID: emr-26739

ABSTRACT

Transrectal ultrasound was used to evaluate known on suspected rectal and extra-rectal masses. 32 patients were examined, 25 patients with rectal carcinoma and 7 patients with extra-rectal masses. All patients underwent surgical exploration. They include, rectal cancers, recurrent cancer bladder, posterior uterine wall leiomyoma, perirectal abscesses and presacral endometriosis. Pathological staging of rectal cancer cases after surgery, had shown that transrectal ultrasound was accurate in detecting the site of rectal cancer, defining perirectal fat infiltration and perirectal lymph node involvement. The results suggest that, transrectal ultrasound is a cost effective, reliable adjunct for staging rectal cancers


Subject(s)
Ultrasonography/methods
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