Petroleum-powered generators are commonly used in many developing countries as an alternative to meet utility demands. Generator exhaust emission significantly contributes to air pollution, which remains a constant threat to human health due to the presence of aromatic hydrocarbons and other harmful gases. This study assessed oxidative stress parameters in response to exhaust emission from gasoline generator engine in adult male wistar rats. Forty-eight (48) adult wistar rats weighing between 180-200g were randomly allocated to four (4) groups (A-D) of twelve (12) rats each. After the acclimatization period, the control group (A) were kept unexposed, whereas rats in groups (C-D) were exposed daily at 2, 4, and 8-hour intervals for 4, 8, and 12 weeks, respectively. Tissue samples were obtained at four weeks intervals. Fresh lung tissues weighing 1g were rinsed twice in phosphate-buffered saline (PBS, pH 8.0), homogenized and centrifuged at 3000 revolutions per minute for 20 min at 4°C. Supernatant levels of malondialdehyde (MDA), superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione S-transferase (GST), reduced glutathione (GSH), nitric oxide (NO), hydrogen peroxide (H2O2), catalase (CAT), and total antioxidant status (TAS) were determined using standard protocols. The findings revealed elevated oxidant levels of MDA, NO, and H2O2, whereas SOD, GPX, GST, GSH, CAT, and TAS were significantly reduced across the exposure time points compared to the unexposed control rats (p < 0.05). The research findings revealed that exposure to emissions from gasoline generators induced oxidative stress in the exposed rats, with the extent of disruption to their oxidative balance dependent on the duration and length of exposure time.

Background: Malaria and diabetes mellitus are still a significant global public health problem despite the phenomenal progresses in clinical sciences related to the diseases. Both anemia and malaria parasitemia are common in developing countries. It is therefore important to diagnose and determine the correlation between anemia level and malaria infection severity in diabetic patients for better management. Methods: Patients with diabetes mellitus (DM) infected with malaria were recruited (n=50) as subjects and non-diabetic patients were used as control in this study, who were further divided into two sub-group: non-DM infected with malaria (n=25) and non-DM without malaria parasitemia (n=25). Blood sample were collected to examine the fasting blood sugar (FBS) level, packed cell volume (PCV), hemoglobin (Hb) level, and malaria parasitemia. Statistical analysis was then performed using ANOVA with a p value of less than or equal to 0.05 considered statistically significant.Results: The parasite density in DM with malaria was significantly lower (p<0.05) than in the non-DM with malaria. Interestingly, there was a higher PCV and hemoglobin level (p<0.05) in DM with malaria when compared with non-DM with malaria.Conclusion: DM patients infected with plasmodium have low parasite density but higher hemoglobin level and PCV compared to the control group. There is no correlation between the severity of anemia and malaria parasitemia in DM patients infected with malaria when compared to non-diabetic subjects infected with malaria. Further studies are needed to explore the correlation between hemoglobin level in DM and plasmodium infection

Background: Prostate cancer remains the commonest form of cancer among Nigerian males, constituting 13.3% of all male cancers encountered in this region. Trace elements and antioxidant vitamins may be of epidemiological significance in the early prediction and treatment of prostate complications. The study aimed to explore the serum trace elements, antioxidant vitamins concentration and serum prostate specific antigen (PSA) among male with prostate disorders in the delta region of Nigeria.Methods: Blood specimens were collected from males with symptoms of prostatitis (n=70), benign prostatic hyperplasia (BPH; n=60) and prostate cancer (PCa; n=70), alongside with apparently healthy male subjects (n=60). The levels of trace elements and antioxidant vitamins were evaluated. Fluorescence immunoassay technique was used to assess the expression of PSA. Results: Compared with the controls, PCa patients had a significantly increased level of vitamin A (p0.05). Interestingly, there was a significant positive correlation between prostate specific antigen, trace elements and vitamins in BPH group (p<0.05).Conclusions: Prostate disorders such as prostatitis, BPH and PCa may be associated with elevated levels of PSA, but, does not affect the circulating expression of some serum trace elements and antioxidant vitamins.