Multiple sclerosis (MS) is the most common disabling neurologic condition of young adults after trauma. The establishing of an unraveling database carries a potentially important role in clarifying the nature of the disease in Iraq. This study had been designed to find the frequency distribution of MS patients according to different demographic variables like the age at onset, age at diagnosis, gender and place of birth and residence, etc, to estimate the frequency of different neurological symptoms and signs in patients with MS, to estimate the frequency of different clinical types of MS in Iraqi patients and assessing the differences between different clinical types of MS in regard to gender, age at onset, age at diagnosis, the diagnostic delay, disease duration and the EDSS, accordingly. This retrospective study was carried out at the Multiple Sclerosis Clinic, Medical City in Baghdad/lraq. The medical files of 900 MS patients were thoroughly revised; they included all patients who had attended the MS Clinic from the day of establishment of the clinic at 2001 to the end of February 2006. Six hundreds seventy six (676) patients were considered as MS patients fulfilling the Poser's criteria and continued visiting the clinic for follow up and treatment. Patient's distribution according to the clinical type of their MS was RRMS= 67.3%, PPMS= 19.1%, SPMS= 13.6% , main age distribution of this sample was between 30-39 years (39.3%)., Females were 64.9%, males were 35.1%.,Age of onset was mainly between 20-29 years of age regardless of the gender or type of MS, Diagnostic delay was mainly between 1-3 years, Distribution according to place of birth was seen mainly in 3 geographical clusters in Iraq, Motor symptoms were the commonest experienced by the patients (95.7%). This study had shown that during the last 2 decades, MS was increasingly encountered in Iraq, particularly during the last 5 years after the establishment of MS clinic in Baghdad, MS cases in Iraq distributed in a three-main-clusters pattern rather than North-South gradient, primary progressive MS showed a more even gender distribution and older age at onset with the shortest diagnostic delay.
Any web security system should achieve three conceptual goals are; confidentiality, integrity and Non-repudiation, and authentication. Also any system of communication when it is designed with these security services are taken into account and these security services must be defined and can be shortened format as (CIA).In this paper, we are going to discuss the theoretical background on the objectives of web security, and it will be touched upon the other subjects such as symmetric cryptography, asymmetric cryptography, the hash function, confidentiality, integrity, non-repudiation, Authentication, Communication and Network Security and its types ,and we will focus on the digital signature concepts.
Objective: To determine if there is any significant association between stroke and both hypoalbuminema and hypoproteinemia. Patients and Methods: Total serum proteins "T.S.P." and serum albumin were measured for 65 patients with stroke who were admitted to the medical and neurological wards at Baghdad Teaching Hospital in the Medical City from November 2003 to October 2004. Careful history was obtained and proper clinical examinations were done. Serum albumin, T.S.P., blood sugar, renal function, liver function and general urine examination "G.U.E." were tested within 48-72 hours of the start of patient symptoms. These patients with hepatic and renal dysfunction and those with diabetes mellitus were excluded. The results were compared with the results obtained from control group, which consisted of 40 persons of matched age and sex. By application pf chi square test "X" to see the association of serum albumin with cigarette smoking, age, hypertension and the presence of carotid bruit. Results: The mean serum level of T.S.P. and serum albumin of those with stroke was 6.42 ± 0.322 g/dl, 3.26 ± 0.251 g/dl respectively, which was significantly lower than T.S.P. and serum albumin of the control "mean = 7.8 ± 0.257 g/dl, 4.73 ± 0.206 g/dl respectively" [P < 0.001]. This study reveals that there is an inverse relationship between the age [X 2 = 25.14, P < 0.005], number of cigarettes [X 2 = 15.57, P < 0.025] and the blood pressure with serum albumin P < 0.0005, and the presence of carotid bruit is associated with low level of albumin P < 0.005 "Fisher's test". Conclusion: Hypoalbuminemia and hypoproteinemia are significantly associated with stroke.
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