This study aims to evaluate the chemopreventive activity of two antioxidants (curcumin [CUM] and caffeic acid [CAF]), focusing on how these antioxidants could reduce cytotoxicity induced by short term secondhand exposure of waterpipe tobacco smoking. Forty-eight adult male BALB/c albino mice were equally divided into four groups. Antioxidants were delivered intraperitoneally, and the exposure to waterpipe smoking (WPS) was performed using a smoking machine. This experiment lasts for 14 consecutive days. Serum were collected from mice before dissection to quantify the activity of some liver enzymes, kidney function tests and proinflammatory cytokines. Lung, heart, and kidney were isolated and processed for light microscopy technique. Parallel treatment of CUM or CAF along with exposure to WPS showed less inflammation, less vacuolized, and more inflated alveoli, less deteriorations in cortex part of kidney, and less disintegration of cardiac myofibers in comparison to waterpipe only. Besides, CUM and CAF significantly reduced the activity of aspartate aminotransferase and proinflammatory cytokines. CUM and CAF were found to have anti-inflammatory and ameliorative effects against the cytotoxicity induced by exposure to waterpipe tobacco smoking, and CUM showed better chemopreventive activity than CAF.

A new approach to overcome or reduce these toxicities is by using antioxidants. Ribociclib, a CDK4/6 inhibitor used in the treatment of breast cancer, has been linked to hepatotoxicity and may contribute to the development of Hepatocellular carcinoma in rats. This Study aims to assess hepatoprotective effect of chamomile oil and olive leaf extracts against ribociclib-induced Hepatotoxicity in rats. A total of 40 adult male albino rats aged 9-10 weeks were utilized in this experiment. These rats were divided into four groups, (N=10). Group A (control) comprised normal rats administered 1 ml (10 ml/kg/day) of normal saline daily. Conversely, group B rats were administered 5 mg/kg Ribociclib (n = 10), while group C was administered 5 mg/kg Ribociclib with a 500 mg/kg/day dose of chamomile oil. Group D was given 5 mg \kg Ribociclib in combination with 200 mg/kg/day of olive leaves. After the trial, the animals were sacrificed, blood samples were collected for biochemical tests, and the liver tissue was processed for histological examination. The results of histology, and biochemistry parameter analysis, indicated that co-administration of Ribociclib and chamomile oil plays a decisive role in mitigating the hepatotoxicity result from Ribociclib-induced liver injuries in rats as demonstrated by histological and biochemical parameters.The levels of cholesterol and LDL in the blood were significantly lower (P < 0.01) after administering chamomile oil compared to the control group. The results of the current study demonstrated that the simultaneous use of chamomile oil and olive leaf extract significantly reduced the liver damage caused by Ribociclib and improved the lipid profile in Albino rats. Additionally, the use of chamomile extract notably lowered urea levels (p < 0.01), indicating a protective effect on the kidneys.

Pistacia species (P. spp) have been used as a treatment for various diseases, including diabetes and inflammation. This study aimed to identify the main components of flavonoids in Pistacia species and evaluate the effect of aqueous extracts of P. spp on pancreatic enzymes and on cancer cells associated with obesity in colon and rectum. HPLC was used to identify the major components of flavonoids. The potent inhibitory effect of Pistacia species against pancreatic α-amylase, α-glucosidase and lipase was examined. The antiproliferative efficacy of the plant extract against several colorectal cancer cell lines were then measured. The main flavonoids component found in Pistacia species are quercetin-3-β-D-glucoside, rutin, kaempferol and vitexin. The starch blockade IC₅₀ (µg/mL) of Pistacia species in a descending order were: P. lentiscus leaves: 1.09±0.01; P. atlantica leaves: 0.96±0.09 and P. atlantica fruits: 0.48±0.02. Pistacia species exerted promising inhibition effect for pancreatic lipase (PL). Besides the aglycones of P. atlantica leaves, all the tested aqueous extracts exerted appreciably novel antiproliferative activity against the tested colorectal cancer cell lines. This study provides useful indication for the Pistacia species as a potential novel therapeutic agent against diabesity and cancer.

Biomedical and Pharmacology Journal (BPJ) is an international, open access, peer reviewed, quarterly research journal.

This work was carried out to evaluate levels of expression of the Heat Shock Protein 70 (Hsp70) and inducible nitric oxide synthase (iNOS) biomarkers in extracts of Artemisia sieberi (A. herba-alba) and their impacts on the activity of hypothalamic-pituitary-thyroid (HPT) axis in diabetic rats. 50 rats were separated into five experimental groups: a normal control group, a positive control group treated with dilute A. herba alba (AHE) oil extract, a diabetic non-treated group, a diabetic group treated with AHA extract, and a diabetic group treated with Metformin. Results: Orally administered 8.1 mg/kg body weight (BW) of dilute AHA oil and 14.2 mg/kg BW of Metformin were administered for 6 weeks. Serum triiodothyronine (T3) levels decreased significantly in diabetic rats and increased significantly in the rats treated with the dilute AHA oil. Furthermore, no significant differences were observed in thyroid gland Hsp70 expression between the diabetic and non-diabetic rats. Metformin and dilute AHA oil treatments significantly increased the expression of Hsp70 in the thyroid gland. The results also demonstrated that diabetes significantly increased the rate of iNOS expression in the thyroid gland. Treatment with Metformin and dilute AHA oil significantly reduced the expression of iNOS in the thyroid gland. These results suggest that dilute AHA oil plays a role in the peripheral regulation of thyroid function and provide empirical evidence that it contributes to the stimulation or improvement of thyroid function.

Biomedical and Pharmacology Journal (BPJ) is an international, open access, peer reviewed, quarterly research journal.