الفهرس 
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Abstract
Background: Hypovitaminosis D has been recently recognized as a
worldwide epidemic. Vitamin D plays a pivotal role in calcium homeostasis,
skeletal metabolism, immune, cardiovascular, and reproductive systems.
Fatty liver is rapidly becoming the most common liver disorder worldwide.
The aim of our study is to study vitamin D status in Egyptian patients with
non-alcoholic fatty liver disease. Patients and Methods: This study
included 75 Egyptian patients with NAFLD detected by abdominal
ultrasonography. Serum 25-hydroxyvitamin D level was measured in these
patients to study the relation between vitamin D level and the disease
compared to control group. Results: Our results illustrated that, 22 patients
had vitamin D deficiency (29.3%), 39 patients had vitamin D insufficiency
(52%), 11 had vitamin D Sufficiency (14.7%) and 3 had toxic levels of
25(OH) vitamin D (4%). Compared to the control group which showed that
4 persons had deficient vitamin D (5.3%), 22 persons had insufficient
vitamin D (29.3%), 47 had sufficient vitamin D (62.7%), and 2 had toxic
vitamin D levels (2.7%), which demonstrate that there were high statistical
significance difference between case and controls regarding to 25(OH)D
with p-value <0.001. Although there was high statistical significance
difference between cases and controls regarding to BMI and AST with p
value <0.05, but there was no statistical significance difference between case
and controls regarding to age, sex and ALT. Conclusions: Low 25(OH)
vitamin D levels are associated with the presence of NAFLD.
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