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Fulltext From imbalance to impairment: the central role of reactive oxygen species in oxidative stress-induced disorders and therapeutic exploration

Afzal S, Abdul Manap AS, Attiq A, Albokhadaim I, Kandeel M, Alhojaily SM

Front Pharmacol, 2023;14:1269581.
PMID: 37927596 DOI: 10.3389/fphar.2023.1269581

Increased production and buildup of reactive oxygen species (ROS) can lead to various health issues, including metabolic problems, cancers, and neurological conditions. Our bodies counteract ROS with biological antioxidants such as SOD, CAT, and GPx, which help prevent cellular damage. However, if there is an imbalance between ROS and these antioxidants, it can result in oxidative stress. This can cause genetic and epigenetic changes at the molecular level. This review delves into how ROS plays a role in disorders caused by oxidative stress. We also look at animal models used for researching ROS pathways. This study offers insights into the mechanism, pathology, epigenetic changes, and animal models to assist in drug development and disease understanding.
Fulltext In vitro antimicrobial and cytotoxic potential against colorectal cancer cell lines using ethanolic leaf extract of Sansevieria trifasciata (Agavaceae)

Afzal S, Wu YS, Manap ASA, Attiq A, Albokhadaim I, Appalaraju V, et al.

Indian J Pharmacol, 2024 Sep 01;56(5):329-334.
PMID: 39687956 DOI: 10.4103/ijp.ijp_564_24

BACKGROUND: Sansevieria trifasciata, common name, mother-in-law's tongue, is a member of the Agavaceae family. We undertook this study to evaluate the cytotoxicity of S. trifasciata leaf extract against two cancer cell lines as well as its antibacterial activities against six bacterial strains.
MATERIALS AND METHODS: The investigated cell lines include primary colon epithelial (PCE) cells and human colorectal cancer cells; the studied bacterial strains are Staphylococcus aureus, Proteus vulgaris, Bacillus subtilis, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Escherichia coli. Using the agar well-diffusion method, various doses (5, 10, and 20 mg/mL) of plant extracts (ethanol and petroleum ether) were evaluated against each kind of bacterial strain. The minimal inhibitory doses were found using the two-fold serial dilution approach, with a range of 0.156-5 mg/mL.
RESULTS: Comparing extracts of S. trifasciata leaves to tetracycline (0.05 mg/mL), a common antibiotic, revealed a wide range of antibacterial activity. P. vulgaris and S. aureus were the most sensitive bacterial strains to ethanol and petroleum ether extracts, respectively. The MTT test was employed to ascertain the viable cell count of PCE cells and HCT-116. When various ethanol extract concentrations (7.8, 15.63, 31.25, 62.5, 125, 250, 500, and 1000 μg/mL) were tested against the cell lines, HCT-116's IC50, values were lower as compared to PCE. The IC50 values for HCT-116 and PCE cells ranged from 10.0 to 14.07 μg/mL and 92.9-216.9 μg/mL, respectively.
CONCLUSIONS: Ethanolic extract of S. trifasciata showed promising antibacterial and anticancer properties.
The Effect of Vitamin D Level on Blood Glucose, HbA1c and Some Inflammatory Markers in Patients with Type 2 Diabetes Mellitus

Ali N, Alaagib N, Abdelatif A, Ali O, Elmagbol W, Alhojaily S, et al.

Niger J Physiol Sci, 2024 Dec 31;39(2):195-200.
PMID: 40156787 DOI: 10.54548/njps.v39i2.5

Diabetes problems are more likely to occur in people with low vitamin D levels. In this study, Sudanese individuals diagnosed with type 2 diabetes mellitus (T2DM) had their serum glucose, HbA1c, vitamin D, and inflammatory markers assessed. Thirty men and thirty women who had been diagnosed with T2DM for at least two years were among the 120 participants of both sexes, ages 35 to 69, who were enrolled in this case-control study. As a control group, the second group consisted of sixty healthy individuals (30 men and 30 women). Every participant had a thorough medical history taken, with special attention to the length of their diabetes, its medical history, and any previous problems. During the clinical examination and laboratory tests, the following criteria were evaluated: total WBC, ESR, CRP, HbA1c, and serum vitamin D3. When 25(OH) vitamin D3 levels were utilized to assess T2DM patients, they showed significantly lower mean blood concentrations than controls: 23 (38.3%) had vitamin D insufficiency, 23 (38.3%) had vitamin D deficiency, and 14 (23.3%) had sufficient vitamin D. Vitamin D-deficient patients had significant increases in HbA1c, glucose, CRP, and total WBC. Additionally, when comparing the mean ESR values of diabetes patients to those of the control group, there is a statistically significant rise. ESR did not significantly alter depending on the controlling level. Males also had a numerically higher level of vitamin D3 than females. Compared to healthy normal controls, individuals with type 2 diabetes have noticeably reduced vitamin D3 levels. Furthermore, in T2DM patients, there was a connection between elevated inflammatory markers and HbA1c and insufficiency in vitamin D.

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