Delta State University, Abraka

About: Delta State University, Abraka is a education organization based out in Abraka, Nigeria. It is known for research contribution in the topics: Population & Government. The organization has 876 authors who have published 1102 publications receiving 9033 citations. The organization is also known as: DELSU.

Bioaccumulation of cadmium and its biochemical effect on selected tissues of the catfish ( Clarias gariepinus )

Abstract: The present study examines the pattern of accumulation of cadmium (Cd) and its biochemical effects on selected tissues of a variety of African catfish (Clarias gariepinus), after exposure to various doses of Cd. The results obtained indicate that at the end of 21 days of exposure, the total tissue organ cadmium concentration followed the pattern kidney > gill > liver > muscle for each of the exposure concentrations. The levels of Cd in these organs were higher than those in ambient water. Moreover, while the rate of uptake of Cd increased with time in the kidney, liver and muscle, it decreased in the gill. Superoxide dismutase (SOD) was significantly elevated only in the kidney of catfish treated with 0.2 and 0.4 ppm of Cd for 7 days compared with the control. Conversely, gill SOD was significantly decreased in the same concentrations of Cd-treated catfish relative to the control. Statistically similar levels of SOD were observed in the liver, brain and muscle with all the treatments after the same duration of treatment. In the fish exposed for 21 days, SOD activity was significantly decreased in the kidney with a corresponding increase in lipid peroxidation (LPO), but it manifested only with the 0.2- and 0.4-ppm Cd treatment relative to the control. In the liver, however, Cd exposure significantly increased SOD in the 0.2- and 0.4-ppm treatments of the same duration. In conclusion, the present study indicates that the accumulation of Cd and its effect on SOD and LPO in C. gariepinus is dependent on concentration, tissue and time

Reasons given by pregnant women for late initiation of antenatal care in the niger delta, Nigeria.

Abstract: Background : Many studies show that the vast majority of Nigerian women register for antenatal care late and that the determinants may differ from those found in developed countries. Objective : To determine the reasons for late booking among women presenting at the antenatal clinic of a major tertiary hospital in the Niger Delta, Nigeria Design : A cross sectional questionnaire based survey. Setting : A large tertiary hospital in the Niger delta, Nigeria Participants: Pregnant women registering for antenata care after 14 weeks gestation. Results : The majority of respondents were aged 20-39 years (97.1%), quarters were primigravidae and 25 % of the women belonged to the upper socioeconomic class. Seventy three point six percent booked in the second trimester and 26.4% in the third trimester. Of the women who had given birth before, 80% had booked late in at least one previous pregnancy. More than three-fifth of the women (65.6%) booked late due to ignorance or misconceptions of the purpose of, and right time to commence antenatal care. Conclusion : The findings of this study suggest that most women book late because of a belief that there are no advantages in booking for antenatal care in the first three months of pregnancy. This seems to be because antenatal care is viewed primarily as curative rather than preventive in the study population. Research is needed to determine the best approaches for health education programmes to correct the misconceptions about antenatal care.

Petroleum – induced free radical toxicity in African catfish (Clarias gariepinus)

Abstract: The reaction products derived from lipid peroxidation, as well as superoxide dismutase and catalase enzyme activities were measured in tissues of catfish (Clarias gariepinus) exposed to oil in water dispersions of 0%, 0.5%, 1.0% and 1.5% for 0, 7, 14, 21 and 28 days. Lipid peroxidation significantly (P<0.05) increased in various tissues relative to control values after 14, 21, and 28 days of exposure to 1.0% and 1.5% oil in water dispersions. Catalase and superoxide dismutase activities decreased after 7 days of exposure but significantly (P<0.05) increased after 14, 21 and 28 days of exposure to 1.0% and 1.5% oil in water dispersions. The elevated levels of lipid peroxidation, superoxide dismutase and catalase activities in all tissues examined in C. gariepinus could be a reflection of oxidative stress on the fish. These observations seem to implicate that petroleum hydrocarbons act as a mediator in free radical generation. The increase in catalase and superoxide dismutase activities in these tissues could be an adaptive response to protect the fish from petroleum-hydrocarbon-induced free radical toxicity.