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This paper presents a new approach to enhance the security and performance of the Serpent algorithm. The main concepts of this approach is to generate a sub key for each block using Lorenz 96 chaos and then run the process of encryption and decryption in ECB parallel mode. The proposed method has been implemented in Java, openjdk version "11.0.11"; and for the analysis of the tested RGB images, Python 3.6 was used. Comprehensive experiments on widely used metrics demonstrate the effectiveness of the proposed method against differential attacks, brute force attacks and statistical attacks, while achieving superb results compared to related schemes. Moreover, the encryption quality, Shannon entropy, correlation coefficients, histogram analysis and differential analysis all accomplished affirmative results. Furthermore, the reduction in encryption/decryption time was over 61%. Moreover, the proposed method cipher was tested using the Statistical Test Suite (STS) recommended by the NIST and passed them all ensuring the randomness of the cipher output. Thus, the approach demonstrated the potential of the improved Serpent-ECB algorithm with Lorenz 96 chaos-based block key generation (BKG) and gave favorable results. Specifically, compared to existing encryption schemes, it proclaimed its effectiveness.
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BACKGROUND: Humankind used herbal products as a source of medicines since they understood their therapeutic benefits from ancient times. Therefore, the current research aimed to determine the anticancer, antioxidant, and metabolic enzyme inhibitory activities of Rubus sanctus (RS) root four solvent fractions for the first time. METHODS: The antioxidant, antilipase, and anti-α-amylase potentials of (RS) four solvent fractions were evaluated using standard biomedical assays. Moreover, the DNA cell cycle of liver cancer was assessed using a propidium iodide (PI) assay. At the same time, the apoptosis activity was estimated utilizing flow the cytometry method. RESULTS: The methanol and acetone (RS) fractions showed the highest antioxidant activity with IC50 values of 0.078 ± 0.22 and 0.67 ± 0.25 µg/ml, respectively, compared with Trolox, which has an antioxidant IC50 value of 2.039 ± 0.52 µg/ml. Moreover, the methanol (RS) fraction has the highest anti-α-amylase activity with an IC50 value of 20.12 ± 0.34 µg/ml compared with acarbose, which has an IC50 value of 6.565 ± 0.3 µg/ml. Also, the acetone (RS) fraction revealed the highest antilipase activity with an IC50 value of 6.03 ± 1.23 µg/ml compared with the positive control orlistat which has an IC50 value of 0.39 ± 0.45 µg/ml. The aqueous, methanol, acetone, and hexane fractions of the (RS) roots decreased the secretion of the α-fetoprotein in the liver cancer cells. The acetone fraction was the most potent α-fetoprotein inhibitor with an average of 237 ± 12.5% compared with the average of the untreated cells, which was 4066.6 ± 202%. The hexane fraction was the most effective in diminishing apoptosis with an average of 14.5 ± 1.6%, compared with 49% ± 2 untreated cells' average. In inhibiting cell cycle progression, it was recognized that methanol fraction seems to be the most powerful amplifier of the (RS) effect, as it increased the proportion of the cells with an average of 24.5 ± 2.2%, compared with 7.4 ± 1.8% in the doxorubicin (DOX). Data indicated a decrease in cell proliferation rate by prolonging the G2-M phase and thus slowing cancer progression. Our results suggest that (RS) roots four solvent fractions have potential anticancer activity. CONCLUSION: The (RS) roots four solvent fractions have potential anticancer, antioxidant, antilipase, and α-amylase inhibitory activities. It could be a promising source for applications in the functional food, nutraceutical, and pharmaceutical industries.
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Antibiotic-induced skin eruption in the setting of infectious mononucleosis is a common and well-documented clinical scenario. The skin lesions are non-specific and the mechanisms causing them are unclear. Several reports have described this entity with different antibiotic classes, mainly penicillins. Only 1 case of azithromycin-induced skin eruption has previously been described in this setting. Herein, we report the second case.