Protective effect of sterubin against neurochemical and behavioral impairments in rotenone-induced Parkinson's disease

This study was conducted to evaluate how sterubin affects rotenone-induced Parkinson's disease (PD) in rats. A total of 24 rats were distributed into 4 equal groups: normal saline control and rotenone control were administered saline or rotenone (ROT), respectively, orally; sterubin 10 received ROT + sterubin 10 mg/kg po; and sterubin alone was administered to the test group (10 mg/kg). Rats of the normal saline and sterubin alone groups received sunflower oil injection (sc) daily, 1 h after receiving the treatments cited above, while rats of the other groups received rotenone injection (0.5 mg/kg, sc). The treatment was continued over the course of 28 days daily. On the 29th day, catalepsy and akinesia were assessed. The rats were then euthanized, and the brain was extracted for estimation of endogenous antioxidants (MDA: malondialdehyde, GSH: reduced glutathione, CAT: catalase, SOD: superoxide dismutase), nitrative (nitrite) stress markers, neuroinflammatory cytokines, and neurotransmitter levels and their metabolites (3,4-dihydroxyphenylacetic acid (DOPAC), dopamine (DA), norepinephrine (NE), serotonin (5-HT), 5-hydroxyindoleacetic acid (5-HIAA), and homovanillic acid (HVA)). Akinesia and catatonia caused by ROT reduced the levels of endogenous antioxidants (GSH, CAT, and SOD), elevated the MDA level, and altered the levels of nitrites, neurotransmitters, and their metabolites. Sterubin restored the neurobehavioral deficits, oxidative stress, and metabolites of altered neurotransmitters caused by ROT. Results demonstrated the anti-Parkinson's activities of sterubin in ROT-treated rats.

Butin attenuates behavioral disorders via cholinergic/BDNF/Caspase-3 pathway in scopolamine-evoked memory deficits in rats.

OBJECTIVE: Recent research suggests that butin may also exert neuroprotective effects. However, its influence on cognitive performance and, specifically, its potential to mitigate scopolamine-induced memory impairment remains unexplored. The aim of the study is to investigate the effects of butin on the cognitive and behavioral performance of rats with scopolamine-induced memory impairment. MATERIALS AND METHODS: Scopolamine-injected memory-impediment model in rats was used to determine the efficacy of butin in higher and lower doses (10 and 20 mg/kg) for 14 days. Y-maze, along with Morris water, was used to assess the ability to recall spatial and working information. Biochemistry-related functions such as acetylcholinesterase, choline acetyltransferase, superoxide dismutase, glutathione transferase, malonaldehyde, catalase, nitric oxide, and neurotransmitters levels were estimated as indicators of free radical damage. Furthermore, we evaluated neuro-inflammatory responses by assessing tumor necrosis factor-alpha (TNF-α), interleukin 1 beta (IL-1ß), interleukin-6 (IL-6), brain-derived neurotrophic factor (BDNF) and caspase-3 immuno-reactive proteins. RESULTS: When assessed through behavioral paradigms, the butin-treated group enhanced the spatial and working memory of rodents. Scopolamine caused a substantial alteration in biochemical-related parameters, neuronal enzymatic, inflammation responses and apoptosis markers prominently restored by butin. CONCLUSIONS: This study concludes that butin protects scopolamine-injected rats from behavioral impairments and neuronal damage by reducing apoptosis and neuroinflammation.

Protective effect of sterubin against neurochemical and behavioral impairments in rotenone-induced Parkinson's disease.

This study was conducted to evaluate how sterubin affects rotenone-induced Parkinson's disease (PD) in rats. A total of 24 rats were distributed into 4 equal groups: normal saline control and rotenone control were administered saline or rotenone (ROT), respectively, orally; sterubin 10 received ROT + sterubin 10 mg/kg po; and sterubin alone was administered to the test group (10 mg/kg). Rats of the normal saline and sterubin alone groups received sunflower oil injection (sc) daily, 1 h after receiving the treatments cited above, while rats of the other groups received rotenone injection (0.5 mg/kg, sc). The treatment was continued over the course of 28 days daily. On the 29th day, catalepsy and akinesia were assessed. The rats were then euthanized, and the brain was extracted for estimation of endogenous antioxidants (MDA: malondialdehyde, GSH: reduced glutathione, CAT: catalase, SOD: superoxide dismutase), nitrative (nitrite) stress markers, neuroinflammatory cytokines, and neurotransmitter levels and their metabolites (3,4-dihydroxyphenylacetic acid (DOPAC), dopamine (DA), norepinephrine (NE), serotonin (5-HT), 5-hydroxyindoleacetic acid (5-HIAA), and homovanillic acid (HVA)). Akinesia and catatonia caused by ROT reduced the levels of endogenous antioxidants (GSH, CAT, and SOD), elevated the MDA level, and altered the levels of nitrites, neurotransmitters, and their metabolites. Sterubin restored the neurobehavioral deficits, oxidative stress, and metabolites of altered neurotransmitters caused by ROT. Results demonstrated the anti-Parkinson's activities of sterubin in ROT-treated rats.

Fustin alleviates lipopolysaccharide-induced anxiety-depression-like performances by modulation of oxidative stress/neuroinflammatory markers/ NF-κB/caspase-3/BDNF expression in rodents.

OBJECTIVE: Anxiety and depression are common psychiatric disorders that affect millions of people worldwide. Lipopolysaccharide (LPS) is a bacterial endotoxin that has been demonstrated to cause depression and anxiety-like behaviors in animal models. Fustin is a flavonoid found in various plant species that have been reported to have neuroprotective effects. The study proposed the evaluation of fustin's impact on anxiety and depression in LPS-injected rats. MATERIALS AND METHODS: The efficacy of fustin in higher and lower doses was studied by administering a single dose of LPS-injected anxiety/depression in rodents. Behavioral models like the elevated plus maze test, open field test, marble burying test, force swimming test, tail suspension test, and hyperemotionality behavior were performed to evaluate anxiety/depression in rodents. The neuroinflammatory markers such as interleukin-6 (IL-6), interleukin-1ß (IL-1ß), nuclear factor-κB (NF-κB), tumor necrosis factor-α (TNF-α), apoptosis marker caspase-3, and brain-derived neurotrophic factor (BDNF) were also measured as a part of the study. Additionally, biochemical markers of oxidative stress, such as malonaldehyde (MDA) and antioxidants, including superoxide dismutase (SOD), glutathione (GSH), catalase (CAT), and nitric oxide (NO), were also evaluated. RESULTS: LPS administration resulted in significant (p<0.001) changes in behavior tests and biochemical markers including IL-1ß, IL-6, NF-κB, TNF-α, NO, caspase-3, BDNF, MDA, CAT, SOD, and GSH. In contrast, treating the rats with fustin significantly improved the behavior tests and restored the changes in biochemical markers. CONCLUSIONS: The current work established the efficacy of fustin with its therapeutic impact on depression and anxiety-like behaviors in rodent experimental models through its modulation of apoptosis markers, oxidative stress, and neuroinflammation.

Protective effect of barbigerone against ethanol-induced ulcers via the interleukins/ICAM-1/Bcl-2 pathway.

OBJECTIVE: The objective of the study was to assess the protective effects of barbigerone in ethanol-induced gastric ulcers in rats. MATERIALS AND METHODS: Male Wistar rats (180±20 g) were used in the study (n=06). The rats were randomly divided into different groups, i.e., the normal group, ethanol control, and barbigerone 10 and 20 mg/kg group. Various biochemical parameters were assessed - total acidity and pH values, oxidative stress biomarkers such as superoxide dismutase (SOD), glutathione (GSH), malondialdehyde (MDA), and catalase (CAT) along with markers, i.e., tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), IL-1ß, intercellular adhesion molecule-1 (ICAM-1) and expression of B-Cell Leukemia/Lymphoma 2 (Bcl-2). Also, histopathology was performed. RESULTS: Treatment with barbigerone in the ethanol-induced-ulcer rats restored the levels of biochemical parameters such as SOD, GSH, MDA, CAT, and markers expression, including TNF-α, IL-6, IL-1ß, ICAM-1, and Bcl-2 with protected against cellular necrosis. CONCLUSIONS: Barbigerone protective effects can be attributed to its ability to reduce oxidative stress and inflammation, as well as promote gastroprotection against ethanol-induced ulcers in rats.

Risk behaviours for HIV/AIDS infection among men who have sex with men in Cairo, Egypt.

A sample of 73 men who have sex with men (MSM) in Cairo, Egypt, were screened for HIV infection and were interviewed to study their risk behaviours for HIV/AIDS. Most (65.8%) had initiated sexual activity before 15 years; 65.8% took both active and passive roles in sexual acts. The frequency of sexual acts was < 1 per week for 73.3% of those aged 25+ years, but > 1 daily for 25.9% of those aged < 25 years. Heterosexual relations were reported by 73.3% of the older age group, while 70.7% of the younger age group were exclusively MSM. Condoms were always used by only 19.2% of the sample.

Knowledge, attitude and practices of Egyptian industrial and tourist workers towards HIV/AIDS.

This study explored knowledge, attitudes and practices towards HIV/AIDS infection among 1256 Egyptian industrial and tourism workers aged 16-40 years. Compared with industrial workers, tourism workers had a significantly better perception of the magnitude of the HIV/AIDS problem worldwide as well as in Egypt and of the likelihood of the problem worsening. Knowledge of tourism workers was also significantly better about causative agent of AIDS and methods of transmission. Both groups had negative attitudes towards patients living with HIV/AIDS concerning their right to confidentiality and to work. Both groups had a positive attitude towards behaviour change for protection from HIV/AIDS, principally via avoidance of extramarital sexual relations and adherence to religious beliefs. Use of condoms as a way to avoid HIV/AIDS was reported by only 0.4% of workers.

Knowledge, attitude and practices of Egyptian industrial and tourist workers towards HIV/AIDS

This study explored knowledge, attitudes and practices towards HIV/AIDS infection among 1256 Egyptian industrial and tourism workers aged 16-40 years. Compared with industrial workers, tourism workers had a significantly better perception of the magnitude of the HIV/AIDS problem worldwide as well as in Egypt and of the likelihood of the problem worsening. Knowledge of tourism workers was also significantly better about causative agent of AIDS and methods of transmission. Both groups had negative attitudes towards patients living with HIV/AIDS concerning their right to confidentiality and to work. Both groups had a positive attitude towards behaviour change for protection from HIV/AIDS, principally via avoidance of extramarital sexual relations and adherence to religious beliefs. Use of condoms as a way to avoid HIV/AIDS was reported by only 0.4% of workers

Risk behaviours for HIV/AIDS infection among men who have sex with men in Cairo, Egypt

A sample of 73 men who have sex with men [MSM] in Cairo, Egypt, were screened for HIV infection and were interviewed to study their risk behaviours for HIV/AIDS. Most [65.8%] had initiated sexual activity before 15 years; 65.8% took both active and passive roles in sexual acts. The frequency of sexual acts was < 1 per week for 73.3% of those aged 25 + years, but > 1 daily for 25.9% of those aged < 25 years. Heterosexual relations were reported by 73.3% of the older age group, while 70.7% of the younger age group were exclusively MSM. Condoms were always used by only 19.2% of the sample