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ABSTRACT. Hepatocellular carcinoma (HCC) is the fifth most common malignancy worldwide. In Egypt, the incidence of HCC has doubled over the last decade. Matrix metalloproteinase-9 (MMP-9) plays a key role in cancer invasion and metastasis by degrading the extracellular matrix and basement membrane barriers. A cytosine (C)/ thymidine (T) single nucleotide polymorphism at position -1562 in the MMP-9 promoter is reported to influence the expression of the MMP-9 gene. The association between MMP-9 gene polymorphisms and HCC patients with hepatitis C and B viruses (HCV and HBV) was examined in 91 patients with HCC and viral hepatitis (55 HCV and 36 HBV). The results were compared with those of 42 HCC patients without viral hepatitis and 60 healthy individuals with no liver infection. Polymorphisms of the MMP-9 gene were investigated by polymerase chain reaction amplification followed by restriction fragment length polymorphism analysis. The serum MMP-9 level was quantitatively determined using a human MMP-9 enzyme-linked immunosorbent assay, which showed that homozygosity of the MMP-9 promoter (TT) was more frequent in patients with HCC and chronic HCV or HBV infection when compared with the control group (49.1, 52.8, and 35.7%, respectively). In addition, we observed significant elevation of serum MMP-9 levels in all HCC groups compared to controls. It was concluded that patients with the MMP-9 TT genotype are at risk of developing HCC and HBV or HCV. People with significantly elevated serum levels of MMP-9 are at risk of developing HCC.

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Introduction: Psoriasis is a chronic non-contagious inflammatory skin disorder, which might impair patient’s social relationships, limit leisure activities, and lower self-esteem. Psoriasis patients might be stigmatized leading to psychological disorders such as anxiety and depression. Objectives: This study aimed to outline the clinical features of psoriasis and its effects on quality of life, and the feeling of stigmatization among psoriasis patients. Methods: This cross-sectional questionnaire-based study was conducted on 109 adult psoriasis patients in Arar City, Saudi Arabia. The study collected data on socio-demographic and clinical characteristics of psoriasis patients, self-reported psoriasis severity using the self-assessment Simplified Psoriasis Index (sa-SPI-s), patients’ quality of life using the dermatological life quality index (DLQI), and the feeling of stigmatization using the six-items stigmatization scale. Results: The mean age of psoriasis onset in studied patients was 20 (±7.65) years, females represented 58.72%, and 22% were unemployed. Joint and nail affection were reported in 46.79% and 51.38%, respectively. One third of patients had positive family history of psoriasis. Seasonal variation, life stressors, smoking and skin injuries were frequent provocative factors for psoriasis lesions. The average sa-SPI-s was 10.08 (±10.41), which was correlated with patients’ ages, disease duration, obesity, and pruritis. The average DLQI and six-items stigmatization scale for psoriasis patients were 8.95 (±5.77) and 7.61 (±4.5), respectively that were correlated with sa-SPI-s. Conclusion: The clinical manifestations and chronicity of psoriasis impaired patients’ quality of life and accompanied with social stigma due to skin disfigurement. These effects need to be addressed for better care of patients.