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1.
Hernia ; 2024 Apr 29.
Article in English | MEDLINE | ID: mdl-38683482

ABSTRACT

PURPOSE: Post-operative urinary retention (POUR) is a known complication of hernia surgery. Minimally invasive inguinal hernia repair (IHR) is typically done under general anesthesia with neuromuscular blockade (NMB), which is commonly reversed with an anticholinesterase inhibitor paired with an anticholinergic agent. Sugammadex is a unique NMB reversal agent that does not have to be paired with an anticholinergic. We sought to explore the role of sugammadex in reducing the rate of POUR following these procedures. METHODS: Data were collected retrospectively at a single institution between February 2016 and October 2019. We identified and studied patients who underwent minimally invasive IHR and received either sugammadex or neostigmine/glycopyrrolate for NMB reversal. The primary endpoint was POUR requiring bladder catheterization. Secondary endpoints included post-operative and 30-day readmissions. RESULTS: 274 patients were included in this study (143 received neostigmine and glycopyrrolate, 131 sugammadex). The sugammadex patients were on average 5 years older than the neostigmine/ glycopyrrolate patients (63.2 vs 58.2, p = 0.003), and received less median intravenous fluids (IVF) (900 ml vs 1000 ml; p = 0.015). There was a significant difference in the rate of POUR between the sugammadex and neostigmine/glycopyrrolate patients (0.0% vs 8.4%, p ≤ 0.001). The difference remained significant after controlling for age and IVF. The odds of POUR for those who received neostigmine/glycopyrrolate were 25 × higher than the odds of those who received sugammadex. CONCLUSION: The results of this study reflect the protective role of sugammadex against POUR in minimally invasive IHR cases.

2.
J Endocrinol Invest ; 46(9): 1891-1899, 2023 Sep.
Article in English | MEDLINE | ID: mdl-36967417

ABSTRACT

BACKGROUND: The prevalence of hypothyroidism among older patients hospitalized for COVID-19 and its association with mortality is unclear. This study aims to investigate the prevalence of hypothyroidism in older COVID-19 inpatients and verify if this comorbidity is associated with a specific pattern of onset symptoms and a worse prognosis. METHODS: COVID-19 inpatients aged ≥ 60 years, participating in the GeroCovid acute wards cohort, were included. The history of hypothyroidism was derived from medical records and the use of thyroid hormones. Sociodemographic data, comorbidities, symptoms/signs at the disease onset and inflammatory markers at ward admission were compared between people with vs without history of hypothyroidism. The association between hypothyroidism and in-hospital mortality was tested through Cox regression. RESULTS: Of the 1245 patients included, 8.5% had a history of hypothyroidism. These patients were more likely to present arterial hypertension and obesity compared with those without an history of hypothyroidism. Concerning COVID-19 clinical presentation, patients with hypothyroidism had less frequently low oxygen saturation and anorexia but reported muscle pain and loss of smell more commonly than those without hypothyroidism. Among the inflammatory markers, patients with hypothyroidism had higher lymphocytes values. At Cox regression, hypothyroidism was associated with reduced in-hospital mortality only in the univariable model (HR = 0.66, 95% CI 0.45-0.96, p = 0.03); conversely, no significant result were observed after adjusting for potential confounders (HR = 0.69, 95% CI 0.47-1.03, p = 0.07). CONCLUSIONS: Hypothyroidism does not seem to substantially influence the prognosis of COVID-19 in older people, although it may be associated with peculiar clinical and biochemical features at the disease onset.


Subject(s)
COVID-19 , Hypertension , Hypothyroidism , Humans , Aged , COVID-19/complications , COVID-19/epidemiology , Hypothyroidism/epidemiology , Comorbidity , Prognosis , Retrospective Studies , Risk Factors
3.
Niger J Clin Pract ; 25(11): 1805-1811, 2022 Nov.
Article in English | MEDLINE | ID: mdl-36412286

ABSTRACT

Background: Sentinel lymph node biopsy is the current standard of care for axillary staging and further treatment planning in patients with clinical axillary node-negative breast cancer. Sentinel node (SN) biopsy was designed to accurately stage the axilla and minimize the side effects of conventional axillary-lymph-node dissection without sacrificing oncologic outcomes. Sentinel lymph node biopsy is normally performed with nuclear scan and patent blue violet or isosulfan blue. These are expensive and not commonly available in resource-poor regions such as West Africa. Methylene blue dye is a commonly used agent in a wide range of clinical diagnostic procedures and has been used by other investigators to perform this procedure. This study was designed to demonstrate the feasibility and effectiveness of SN biopsy in the management of axillary node-negative breast cancer in resource-limited populations using methylene blue dye. Aim: To determine the efficacy of methylene blue dye as a single tracer in lymphatic basin mapping and sentinel lymph node biopsy in patients with clinical axillary node-negative breast cancer. Methods: This was a prospective, case-controlled study involving 28 consecutively presenting female patients with clinical axillary node-negative breast cancer at the University of Nigeria Teaching Hospital, Enugu. Each of the patients had lymphatic basin mapping and sentinel lymph node biopsy with a sub-areola-subdermal injection of methylene blue dye. The SN (s) were then removed using the dye as the marker. Each patient then had a mastectomy or wide local excision as appropriately planned and conventional levels I and II axillary dissection was performed in the same sitting. The SNs and other axillary nodes were reviewed independently by our institution's pathologist. Each patient's axillary dissection specimen acted as her control for the study. Results: The SNs were identified in 24 (85.7%) patients. There was a demonstrable learning curve with an improvement in identification rate in the later half of the cases (92.9%) compared to the earlier half of the cases (78.6%). A range of 1-3 nodes and a mean of 1.78 nodes were obtained. A sensitivity of 90.9%, specificity of 79.6%, false-positive rate of 28.6%, false-negative rate of 9.1%, and accuracy of 95.8% were obtained. There was no incidence of allergic/hypersensitivity reaction. Conclusion: Sentinel lymph node biopsy with methylene blue dye can be applied with high accuracy within resource-limited environments. However, there is a definite short learning curve that must be overcome and the procedure validated before clinical application in decision-making.


Subject(s)
Breast Neoplasms , Sentinel Lymph Node Biopsy , Humans , Female , Sentinel Lymph Node Biopsy/methods , Breast Neoplasms/surgery , Breast Neoplasms/pathology , Methylene Blue , Prospective Studies , Nigeria , Lymphatic Metastasis , Mastectomy
5.
Front Oncol ; 11: 582694, 2021.
Article in English | MEDLINE | ID: mdl-33692947

ABSTRACT

Glioblastoma (GBM), one of the deadliest primary brain malignancies, is characterized by a high recurrence rate due to its limited response to existing therapeutic strategies such as chemotherapy, radiation therapy, and surgery. Several mechanisms and pathways have been identified to be responsible for GBM therapeutic resistance. Glioblastoma stem cells (GSCs) are known culprits of GBM resistance to therapy. GSCs are characterized by their unique self-renewal, differentiating capacity, and proliferative potential. They form a heterogeneous population of cancer stem cells within the tumor and are further divided into different subpopulations. Their distinct molecular, genetic, dynamic, and metabolic features distinguish them from neural stem cells (NSCs) and differentiated GBM cells. Novel therapeutic strategies targeting GSCs could effectively reduce the tumor-initiating potential, hence, a thorough understanding of mechanisms involved in maintaining GSCs' stemness cannot be overemphasized. The mitochondrion, a regulator of cellular physiological processes such as autophagy, cellular respiration, reactive oxygen species (ROS) generation, apoptosis, DNA repair, and cell cycle control, has been implicated in various malignancies (for instance, breast, lung, and prostate cancer). Besides, the role of mitochondria in GBM has been extensively studied. For example, when stressors, such as irradiation and hypoxia are present, GSCs utilize specific cytoprotective mechanisms like the activation of mitochondrial stress pathways to survive the harsh environment. Proliferating GBM cells exhibit increased cytoplasmic glycolysis in comparison to terminally differentiated GBM cells and quiescent GSCs that rely more on oxidative phosphorylation (OXPHOS). Furthermore, the Warburg effect, which is characterized by increased tumor cell glycolysis and decreased mitochondrial metabolism in the presence of oxygen, has been observed in GBM. Herein, we highlight the importance of mitochondria in the maintenance of GSCs.

6.
Heliyon ; 6(10): e05186, 2020 Oct.
Article in English | MEDLINE | ID: mdl-33088953

ABSTRACT

Abattoir wastewater generated from various meat processing operations in several developing countries pose a serious threat to the environment. Consequently, there is urgent need to reduce the impact of environmental pollution from it. Coagulation techniques have been recommended and used by many researchers successfully in treating wastewater, therefore an investigation of possible use of chito-protein extracted from crab shell (locally sourced) was used as a coagulant for treating abattoir wastewater. Coagulation experiments were carried out using jar-test procedure to investigate the influence of pH, time of settling, temperature and adsorbent dosage for coagulation of BOD, COD, Turbidity and Colour from the wastewater sample. To determine the interaction effect of the various process variables, Response Surface Method (RSM) was used in the optimization of the process variables. To determine the effectiveness of the coagulant, pre and post characterization of the wastewater samples were undertaken, the result of the post characterization of the wastewater sample indicated that most of the water quality parameters except Iron were within WHO standard. The Total Suspended Solid (TSS), for instance stood at 564.6 mg/L and 29 mg/L respectively for pre and post characterisation, the value of 29 mg/L of the post characterization was below the WHO recommended value of 30 mg/L. The predicted responses and the experimental values correlated significantly, an indicator that RSM optimization method used in this study is suitable in modelling the process variables. The result of the study further shows that optimum process variable is dependent on the solution pH (acidic), coagulant dosage of 2-3g, settling time of 25-30 min and operating temperature from 323K to 333K. The coagulant used in this study, when compared with previous studies have shown to have strong potential for use as a coagulant and as an alternative to chemical coagulants in the treatment of abattoir wastewater.

7.
Heliyon ; 6(8): e04468, 2020 Aug.
Article in English | MEDLINE | ID: mdl-32817885

ABSTRACT

Wastewater from slaughter houses (abattoirs) has been a problem in Nigeria. It is complex and difficult to treat. The potentials of novel Fish Bone Chito-protein (FBC) successfully extracted through de-proteinization of Fish Bone Flour (FBF) were explored for the reduction of particle load in abattoir wastewater. Extracted FBC sample was analysed via proximate analysis and instrumental characterizations viz: X-ray Fluorescence (XRF) analysis, Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectrophotoscopic Analysis (FTIR). Influences of coagulant dosage, pH, settling time and temperature were studied. The rate of particle uptake was studied using seven kinetic models. Proximate characterization of FBC revealed that it contains 24% protein, 43% carbohydrate and other components in trace values. Before treatment, abattoir wastewater contains (563 mg/L) suspended particles in excess of the national discharge standard. 92% of the particle load was removed after the coagulation treatment with 1.5g of FBC, after 35 min at pH 2, and 40 °C. BOD removal of 58% was also obtained at the same conditions. The best kinetics model selection was done between Pseudo Second Order (PSO) and fractional power (FP) kinetic model via one way statistical mean comparison using ANOVA and turkey pairwise p-values. The ANOVA p-value for pseudo second order (0.001) was found to be ˂ 0.005 (model significance alpha value). Also, the difference between the adjusted and predicted R2 value (0.0018) was less than 0.2. Thus, pseudo second order described the kinetic data with precision. The mechanistic pathway analysis for the process particle uptake was governed by intra-particle diffusion and film/surface diffusion. The results summarized indicate that fish bones are no waste, FBF is good source of coagulant.

8.
West Afr J Med ; 37(2): 113-117, 2020.
Article in English | MEDLINE | ID: mdl-32150628

ABSTRACT

BACKGROUND: Childhood mortality is a serious public health concern. Periodic assessment of its trend is important in evaluating the pattern and planning intervention strategies. OBJECTIVE: The study aimed at evaluating the childhood mortality (<18 years) in Delta State University Teaching Hospital, Nigeria. METHODS: This is a descriptive retrospective study from 1st January, 2016 to 31st December, 2018 using mortality data from the institution. RESULTS: A total of 1,692 children were admitted during the study period, out of which 203 died, giving a mortality rate of 12%. They were composed of 126 males and 77 females with a mean age of 17.5 months. Neonates, children aged between 28 days and 1 year, between 12 months and 5 years and between 5 years and 18 years accounted for 46.8%, 14.3%, 16.3%, and 22.7% of the cases respectively. Sepsis, prematurity, birth asphyxia, congenital anomalies and bilirubin encephalopathy accounted for 30 (31.6%), 22 (23.2%), 15 (15.8%), 13(13.7%) and 5 (5.3%) of the cases respectively. Septicemia (31.0%) and bronchopneumonia (13.9%) were the leading causes of infant death. Leading causes of under-5 mortality (excluding infants) include burns, malaria, anemia/anemic heart failure, traumatic injury, meningitis and pneumonia, accounting for 18.2%, 18.2%, 12.1%, 12.1%, 9.1% and 9.1% of the cases respectively. Among children 5-18 years, meningitis/encephalitis, malignancies, renal disease, road traffic accident (RTA) and burns accounted for 9(19.6%), 8 (17.4%), 4 (8.7%), 4 (8.7%) and 3 (6.5%) cases respectively. CONCLUSION: We observed excess of male mortality, with neonates being the most vulnerable. These deaths are attributed to preventable causes. There is need to intensify intervention programmes to reverse this trend.


Subject(s)
Child Mortality , Hospital Mortality , Hospitals, University/statistics & numerical data , Infant Mortality , Age Distribution , Cause of Death , Child , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Male , Nigeria/epidemiology , Retrospective Studies , Sex Distribution
9.
Burns Trauma ; 5: 7, 2017.
Article in English | MEDLINE | ID: mdl-28286783

ABSTRACT

BACKGROUND: Burns present a devastating injury to patients. Burns caused by chemical agents, present a worse scenario. In a resource limited country like Nigeria, readily available sources of these corrosive agents are mainly from lead-acid battery vendors and to some extent local small scale soap manufacturers who use caustic soda. We hypothesized that with the reduction in small scale soap manufacturing and increasing trend towards modernization in the use of dry cell batteries, chemical burns may be on the decline, and we sought to investigate this. METHODS: The records of all acute burn patients seen at the Burns and Plastic Department of the National Orthopaedic Hospital Enugu Nigeria between January 2011 and December 2014 were retrospectively reviewed. The results were compared to similar studies carried out at the same centre. A questionnaire was administered to corrosive chemical (sulphuric and caustic soda) vendors to assess the trends in product sales and use in recent times. RESULTS: A total of 624 acute burn cases were treated during the period; among which, 12 cases (1.9%) were chemical burns. When compared with previous studies at the centre, Chemical burn cases were  recorded as the lowest rate. The median age of patients was 24 years. There were eight males and four females. Interpersonal assault was the commonest mechanism of injury with sulphuric acid suspected to be the commonest agent in 83.3% of the cases, while 16.7% of the cases were from accidental use of caustic soda. The head and neck as well as the upper limbs were the most affected (30%). Twenty-six questionnaires to lead-acid vendors were analyzed and revealed that all respondents noticed a marked downward trend in the sale of either sulphuric acid or caustic soda, and they attributed this to the ready availability of imported alternatives to locally manufactured soap or wet lead-acid batteries. Ease of use, durability and convenience of the dry cell batteries were cited as principal reasons. CONCLUSION: There appears to be a downward trend in the prevalence of chemical burns in our study compared to previous studies in the centre which may be due to reduced availability and access of corrosive chemicals to the general public. Further prospective multicentre studies to confirm this are recommended.

10.
Niger J Clin Pract ; 17(6): 808-13, 2014.
Article in English | MEDLINE | ID: mdl-25385924

ABSTRACT

BACKGROUND: Routine immunization coverage is low in some States in Nigeria and contributes to the transmission of wild poliovirus. Anambra State has been polio-free since 2004. However, the risk of importation of poliovirus from travelers and migrants is a public health concern due to the commercial nature of the State. This paper reported experiences and lessons from supplementary immunization activities (SIAs) conducted in the State that will be useful to other settings experiencing low uptake of routine immunization. MATERIALS AND METHODS: The SIAs were conducted simultaneously in the 21 local government areas (LGAs) in Anambra State during January, March, and November 2010. Data were entered and analyzed in Excel spreadsheet and findings were summarized as frequencies and proportions. RESULTS: A total of 1,187,866 children were vaccinated in January, 1,260,876 in March and 1,225,187 in November 2010. The State's cumulative coverage exceeded the target coverage of >90% in the three SIAs. All LGAs met the >90% target in January and March, but one LGA achieved 79% coverage in November. The proportion of zero-dose children decreased from 6% to 4.7%, and the vaccine wastage rate ranged from 6% to 6.6%. In that same year, the state did not achieve the target coverage of >80% for routine oral polio vaccine (OPV 3 ) immunization in any of the months and only 29% of the LGAs exceeded the routine OPV 3 target. CONCLUSION: The State achieved high polio vaccination coverage through the SIAs, but coverage through routine immunization was low. Adopting proper planning and supervision, financial and political support, community involvement, improved vaccine logistics, and other measures utilized during the SIAs could help to improve routine immunization.


Subject(s)
Disease Eradication/methods , Immunization Programs/organization & administration , Poliomyelitis/prevention & control , Poliovirus Vaccine, Oral/administration & dosage , Vaccination Coverage/statistics & numerical data , Child , Child, Preschool , Disease Eradication/organization & administration , Humans , Infant , Local Government , Nigeria/epidemiology , Poliomyelitis/epidemiology , Poliovirus/isolation & purification , Poliovirus Vaccine, Oral/supply & distribution , Program Evaluation
11.
Niger Postgrad Med J ; 21(2): 136-43, 2014 Jun.
Article in English | MEDLINE | ID: mdl-25126867

ABSTRACT

AIMS AND OBJECTIVES: Hypertension remains a significant risk factor in cardiovascular morbidity and mortality. The purpose of the present study was to investigate the effects of 8 weeks interval training programme on blood pressure, aerobic capacity (VO max), indices of adiposity and marker of inflammation in black African men with essential hypertension. PATIENTS AND METHODS: Two hundred and forty five (245) male subjects with stage 1 and 2 (systolic blood pressure [SBP] between 140-179 & diastolic blood pressure [DBP] between 90-109 mmHg) essential hypertension were age matched and grouped into experimental and control groups. The experimental (n=140; 58.90 ± 7.35 years) group involved in an 8 weeks interval training (60-79% HRmax) programme of between 45 and 60 minutes, while age-matched control hypertensive (n=105; 58.27±6.24 years) group remain sedentary during this period. All subjects in both groups were on antihypertensive drugs throughout the study period. Cardiovascular parameters (SBP, DBP) & VO max and percent body fat [%BF], waist to hip ratio [WHR] and C-reactive protein [CRP] were assessed. Independent t-test and Pearson correlation test were used in data analysis. RESULTS: Findings of the study revealed significant decreased effects of interval training programme on SBP, DBP, %BF, WHR and CRP and significant increased effect on VO max at p< 0.05. Also, changes in CRP as a result of exercise training significantly and positively correlated with changes in SBP, DBP, %BF, WHR, CRP and negatively correlated with VO max at p< 0.05.


Subject(s)
Adiposity/physiology , Exercise , Hypertension/metabolism , Hypertension/prevention & control , Inflammation/metabolism , Aged , Biomarkers/metabolism , C-Reactive Protein/metabolism , Essential Hypertension , Exercise Tolerance/physiology , Humans , Male , Middle Aged , Nigeria , Waist-Hip Ratio
12.
Ecotoxicol Environ Saf ; 93: 101-6, 2013 Jul.
Article in English | MEDLINE | ID: mdl-23664087

ABSTRACT

The study assessed the dietary intake of lead and cadmium and health risk from consumption of various parts of cow meat by the urban population of Enugu State, Nigeria. Meat samples (n=150) comprising of muscle, liver, kidney, intestine and tripe were purchased from abattoirs in Nsukka and Enugu. The samples were dried, ground and two gram was digested with 3:2 HNO3:HClO4 v/v. The Cd and Pb concentrations were read with an atomic absorption spectrophotometer. The dietary intakes were estimated using a one week food frequency questionnaire administered to 755 subjects. The dietary intake of lead (µg/kg body weight/week) were in the following ranges; men [0.15 (kidney)-0.55(intestine)], non pregnant/non lactating women [0.16 (kidney)-0.62 (liver)], pregnant/lactating women [0.13 (kidney)-0.53 (intestine)], undergraduate students [0.12 (kidney)-0.62 (intestine)] and school children [0.29 (kidney)-1.16 (liver)]; cadmium: men [0.42 (liver)-1.21 (tripe)], non-pregnant/non-lactating women [0.53 (kidney)-1.20 (tripe)], pregnant/lactating women [0.43 (kidney)-0.90 (intestine)], undergraduate students [0.40 (kidney)-1.18 (tripe)] and school children [0.97 (kidney)-1.93 (tripe)]. The total dietary intakes of lead from the various cow meat parts by the groups were much lower than the provisional tolerable weekly intake (PTWI) guide line, but for cadmium, the intakes were quite appreciable when compared to the PTWI guideline while the intake for school children was very high, 113% of PTWI for the metal. The target hazard quotients were in the range of 0.05-0.10 for lead and 0.42-0.90 for cadmium. These values are less than one, indicating that the subjects are not exposed to any significant health risk via cow meat consumption.


Subject(s)
Cadmium/metabolism , Diet/statistics & numerical data , Environmental Exposure/statistics & numerical data , Environmental Pollutants/metabolism , Lead/metabolism , Meat/analysis , Abattoirs , Adult , Animals , Cadmium/analysis , Cattle , Environmental Pollutants/analysis , Female , Humans , Kidney/metabolism , Lactation , Lead/analysis , Liver/metabolism , Male , Meat/statistics & numerical data , Nigeria , Risk Assessment , Spectrophotometry, Atomic , Urban Population
13.
Bull Environ Contam Toxicol ; 90(6): 708-13, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23568331

ABSTRACT

Lead, nickel, vanadium and cadmium were determined in fish and shellfish muscles, to assess contamination levels and identify bio-indicators. Vanadium was not detectable. Lead and cadmium were slightly above legal limits used in South East Asia, but lower than those of Australia and New Zealand. Higher contents of nickel, cadmium and lead in Pachymelania aurita and Crassostrea rhizophorae, lead in Mugil cephalus and cadmium in Periophthalmus koelreuteri, mark these species out as possible bio-indicators for the three metals in aquatic systems. Patterns of bioaccumulation seem to suggest that biophysiological and ecological characteristics influence bioaccumulation of trace metals in fish and shell fish.


Subject(s)
Fishes/metabolism , Metals/metabolism , Shellfish , Trace Elements/metabolism , Water Pollutants, Chemical/metabolism , Animals , Fresh Water , Nigeria
14.
Ghana Med J ; 47(4): 185-8, 2013 Dec.
Article in English | MEDLINE | ID: mdl-24669024

ABSTRACT

OBJECTIVES: To determine the indications and complications of major limb amputations in a Nigerian hospital. DESIGN: A five-year retrospective descriptive study. SETTING: National Orthopaedic Hospital, Dala, Kano, Nigeria. PARTICIPANTS: Patients who had amputations above the wrist or ankle between January 2006 and December 2010. MAIN OUTCOME MEASURES: Indications, complications and mortality. RESULTS: There were 132 unilateral amputations. The patients were mostly males and below the age of 40. Lower limb amputations (74.2%) exceeded upper limb amputations (25.8%). The commonest indication was trauma (42.4%) followed by TBS gangrene (31.8%) and malignant tumours (12.9%). Wound infection, the commonest complication, occurred in patients who had identifiable predisposing factors. The 3 deaths that occurred were in patients who had had traditional bone setter intervention: 2 were due to septicaemia; 1, due to severe tetanus. CONCLUSION: Trauma and traditional bone setter gangrene were the commonest indications. Most of the amputations were avoidable. Institution of preventive measures is imperative. Paying attention to predisposing factors can reduce complications.


Subject(s)
Amputation, Surgical/statistics & numerical data , Arm Injuries/surgery , Leg Injuries/surgery , Orthopedics , Adolescent , Adult , Amputation, Surgical/mortality , Arm Injuries/mortality , Female , Follow-Up Studies , Fracture Fixation/adverse effects , Hospitals, Teaching , Humans , Leg Injuries/mortality , Male , Medicine, Traditional/adverse effects , Middle Aged , Nigeria/epidemiology , Orthopedic Procedures/adverse effects , Orthopedic Procedures/methods , Retrospective Studies , Risk Factors , Sex Distribution , Wound Infection/epidemiology
15.
Article in English | MEDLINE | ID: mdl-24779937

ABSTRACT

Cadmium levels were determined in locally grown rice samples in Nigeria and any potential risk involved in their consumption was assessed. The dried samples were digested with a 1:1 HNO3:HClO4 mixture and analysed with atomic absorption spectrophotometer (AAS). Mean cadmium values (mg/kg) were: Adamawa (0.50 ± 0.02), Benue (0.63 ± 0.05), Nasarawa (0.48 ± 0.10), Taraba (0.48 ± 0.10), Anambra (0.49 ± 0.09), Ebonyi (0.60 ± 0.08) and Enugu (0.59 ± 0.10). All samples exceeded the Codex Alimentarius maximum limit for cadmium in rice. The dietary intake for a 60 kg adult ranges from 235 to 309 µg/week in the northern region and 240-294 µg/week in the south-eastern region. The target hazard quotient (THQ) ranged from 0.54 to 0.71, which is less than 1, indicating that the population will not be exposed to a potential health risk from dietary cadmium. However, the measured cadmium levels in rice should be of concern.


Subject(s)
Cadmium/chemistry , Food Analysis , Food Contamination/analysis , Oryza/chemistry , Environmental Pollutants/chemistry , Nigeria
16.
J Hazard Mater ; 243: 59-66, 2012 Dec.
Article in English | MEDLINE | ID: mdl-23146355

ABSTRACT

Turbidimetry was used to study the coagulation performance of Detarium microcarpum (DM) in a fibre cement effluent (FCE) at room temperature. Analysis of variance (ANOVA) and Duncan new multiple range test (DNMRT) statistics were used to determine statistical difference of the coagulation performance of DM at various dosages and varying FCE pH. Increasing the coagulant dosage from 100 mg/L to 500 mg/L had no significant difference on the coagulation performance of DM at the same pH, however, varying FCE pH between 4 and 12 using the same coagulant dosage, had significant difference on the coagulation performance of DM.


Subject(s)
Fabaceae/metabolism , Industrial Waste/analysis , Nephelometry and Turbidimetry/methods , Waste Disposal, Fluid/methods , Algorithms , Analysis of Variance , Chlorides/analysis , Cluster Analysis , Colloids/chemistry , Electrochemistry , Fabaceae/chemistry , Hydrogen-Ion Concentration , Nitrates/analysis , Plant Oils/analysis , Plant Proteins/chemistry , Seeds/chemistry , Sulfates/analysis
17.
Bull Environ Contam Toxicol ; 88(3): 422-7, 2012 Mar.
Article in English | MEDLINE | ID: mdl-22218745

ABSTRACT

The study assessed the concentration of cadmium and lead in the muscle, liver, kidney, intestine and tripe of cow in Nigeria. Results show that the ranges of detectable values of cadmium in mg/kg were 0.01-0.80 in muscle, <0.004-0.90 in liver, 0.10-1.12 in kidney, 0.01-0.90 in intestine and 0.01-1.10 in tripe while for lead, the ranges were <0.005-0.72 in muscle, 0.08-501.79 in liver, 0.04-44.89 in kidney, 0.01-108.02 in intestine and 0.01-127.90 in tripe. Cadmium was accumulated mostly in kidney while Pb accumulated more in liver and both were above international maximum permissible levels in most samples.


Subject(s)
Cadmium/analysis , Environmental Exposure/analysis , Environmental Pollutants/analysis , Lead/analysis , Meat/analysis , Animals , Cattle , Environmental Exposure/statistics & numerical data , Humans , Intestines/chemistry , Kidney/chemistry , Liver/chemistry , Muscles/chemistry , Nigeria
18.
Niger Med J ; 52(4): 271-7, 2011 Oct.
Article in English | MEDLINE | ID: mdl-22529513

ABSTRACT

OBJECTIVE: Elevated white blood cell (WBC) count is considered to be prospectively and positively associated with cardiovascular diseases, particularly hypertension. Also, the positive role of exercise in the management of hypertension has been well and long established. However the relationship between WBC count and hypertensive management particularly in the nonpharmacological technique is ambiguous and unclear. Therefore the purpose of the present study was to determine the effect of interval training program on WBC count and cardiovascular parameters in male hypertensive patients. MATERIALS AND METHODS: A total of 245 male patients with mild to moderate (systolic blood pressure (SBP) between 140 mmHg and 179 mmHg and diastolic blood pressure (DBP) between 90 mmHg and 109 mmHg) essential hypertension were age matched and grouped into experimental and control groups. The experimental (n=140; 58.90±7.35 years) group involved in an 8-week interval training (60-79% HR max reserve) program of between 45 minutes to 60 minutes, while the age-matched controls hypertensive (n=105; 58.27±6.24 years) group remain sedentary during this period. Cardiovascular parameters (SBP, DBP, and VO(2) max) and WBC count were assessed. Student's t and Pearson correlation tests were used in data analysis. RESULTS: Findings of the study revealed a significant effect of the interval training program on VO2max, SBP, and DBP and WBC count at P<0.05 and VO2max is negatively related to the WBC count (r=-0.339) at P<0.01. CONCLUSIONS: It was concluded that the interval training program is an effective adjunct nonpharmacological management of hypertension and the therapeutic effect of exercise programs may be mediated through suppression of inflammatory (WBC count) reaction.

19.
Pak J Biol Sci ; 13(3): 126-31, 2010 Feb 01.
Article in English | MEDLINE | ID: mdl-20437701

ABSTRACT

Effects of Aspilia africana leaf extract on oestrous cycle and ovulation were studied in adult female Wistar strain rats. Cyclic female rats weighing 150 to 200 g were divided into two study groups: the oestrous study and ovulation study group. For the oestrous study, the experimental group received 500 mg kg(-1) b. wt. of the extract for 14 days while the control group received distilled water for the same period. In both groups, vaginal lavage was taken daily from the 5th day to monitor the oestrous cycle. For the ovulation study, there was a control group and two experimental groups. The control group received distilled water while group 1 and 2 received 500 and 1000 mg kg(-1) b.wt. of Aspilia africana leaf extract for 16 days, respectively. The animals were sacrificed on the estrous following the treatment. The results showed a significant decrease in the body weight of the treated rats (p = 0.01) and the oestrous cycle was altered after the commencement of extract. This was indicated by the prolonged proestrous and a reduced dioestrus and estrus. There was a dose-dependent reduction in the ovulation s shown by the reduced number of ova observed in the oviduct from the treated rats compared with control (p<0.05). The extract caused inflammation of the fallopian tube, degeneration in the ovarian cortex in the stroma cells of the ovary and disruption of the endometrium of the uterus. Results suggest that aqueous extract of Aspilia africana leaf has antifertility effect by altering oestrous cycle and causing a dose dependent adverse effect on ovulation in Wistar strain rats.


Subject(s)
Asteraceae/chemistry , Estrous Cycle/drug effects , Genitalia, Female/drug effects , Ovulation/drug effects , Plant Extracts/pharmacology , Animals , Asteraceae/anatomy & histology , Body Weight , Female , Genitalia, Female/pathology , Humans , Plant Leaves/chemistry , Rats , Rats, Wistar , Water/chemistry
20.
Niger J Med ; 19(1): 77-86, 2010.
Article in English | MEDLINE | ID: mdl-20232761

ABSTRACT

BACKGROUND: Elevated serum uric acid (SUA) is considered to be positively associated with cardiovascular event risk factor in hypertension. Also, the positive role of exercise in the management of Hypertension has been well and long established. However the relationship between SUA level and hypertensive management particularly in non pharmacological technique is ambiguous and unclear. Therefore the purpose of the present study was to determine the effect of continuous low intensity training programme on SUA level and cardiovascular parameters in male subjects with hypertension. METHOD: Two hundred andseventeen male patients with mild to moderate (systolic blood pressure [SBP] between 140-180 & diastolic blood pressure [DBP] between 90-109 mmHg) essential hypertension were age matched and grouped into continuous and control groups. The continuous (n=112; 58.63 +/- 7.22 years) group involved in on 8 weeks interval training (35-9% HR max reserve) programme of between 45 minutes to 60 minutes, while age-matched controls hypertensive (n=105; 58.27 +/- 6.24 years) group remain sedentary during this period. Cardiovascular parameters (SBP, DBP & VO2max) and SUA were assessed. Students' t and Pearson correlation tests were used in data analysis. RESULTS: Findings of the study revealed significant effect of interval training programme on VO2 max, SBP, and DBP and SUA concentration at p < 0.05 and changes in VO2max negatively correlated with SUA (r = -.266) at p < 0.05. CONCLUSION: it was concluded that low intensity continuous training programme is an effective nonpharmacological management and may prevent cardiovascular event through the down regulation ofSUA in hypertension.


Subject(s)
Blood Pressure/physiology , Exercise Therapy/methods , Hypertension/therapy , Uric Acid/blood , Aged , Double-Blind Method , Female , Humans , Hypertension/physiopathology , Male , Middle Aged , Treatment Outcome
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