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Predominant amino acid substitutions in NS5B gene of hepatitis C virus in blood donors and treatment-naïve hepatitis and HIV patients in Nigeria

*1Shenge, J. A., 2Odaibo, G. N., and 2Olaleye, D. O.
1Virology Research Unit, Biological Sciences, Dominican University, Ibadan, Nigeria 2Department of Virology, College of Medicine, University of Ibadan, Nigeria *Correspondence to: jadamma@yahoo.com; +2348099711012

Abstract:
Background: Hepatitis C virus (HCV) genome undergoes high rate of mutation, which results in generation of genetically diverse HCV isolates. There is paucity of data on mutations in the nonstructural 5b (NS5b) gene of circulating HCV and their implications in the Nigerian population. Here, we identified clinically-important mutations in HCV isolates, which may influence response to therapy and disease prognosis. Continue reading “Predominant amino acid substitutions in NS5B gene of hepatitis C virus in blood donors and treatment-naïve hepatitis and HIV patients in Nigeria”

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Serological and molecular detection of hepatitis C virus among students in a tertiary educational institution in Calabar, Nigeria

*1Mbah, M., 1Nwabunike, V. O., 1Akpan, S. S., 2Tangban, E. E., and 1Bassey, E. E.

1Department of Medical Parasitology and Entomology, Faculty of Medical Laboratory Science, University of Calabar, Calabar, Nigeria

2Department of Social Works, University of Calabar, Calabar, Nigeria
*Correspondence to: mauricembah@yahoo.fr; +2347039121644; ORCID: //orcid.org/0000-0001-1985-2925X

Abstract:
Background: Hepatitis C virus (HCV) infection is a global health problem and continues to be a major disease burden in the world, associated with serious health challenges including liver cirrhosis, cancer, lymphomas and death. This study was carried out to determine the prevalence of HCV infection among students of the University of Calabar. Continue reading “Serological and molecular detection of hepatitis C virus among students in a tertiary educational institution in Calabar, Nigeria”

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Comparative analysis of haematological parameters in HIV patients with co-infections of hepatitis B & C, and HIV-negative patients in Rivers State, Nigeria

*1Erasmus, M. A., 2Akani, N. P.,

2Amadi, L. O., and 2Williams, J. O.
1Rivers State University Teaching Hospital, P.M.B 5064, Port Harcourt, Nigeria

2Department of Microbiology, Faculty of Science, Rivers State University Nkpolu Oroworukwo, P.M.B 5080, Port Harcourt, Nigeria

*Correspondence to: amakirimartha@gmail.com; nedieakani@yahoo.com; 08038213334; 08033102655

Abstract:

Background: Human immunodeficiency virus (HIV) has continued to be a threat to global health with several deaths
recorded despite the introduction of highly active antiretroviral therapy (HAART). Co-infection of hepatitis B and C is
now one of the leading causes of death among HIV-infected patients due to some haematological abnormalities and
immunological impairment. This study was conducted to compare some haematological parameters of HIV-infected
patients with hepatitis B and C co-infections from three hospitals in Rivers State, Nigeria

Methodology: This was a comparative cross-sectional study of randomly recruited HIV-patients from antiretroviral
therapy (ART) clinic and HIV-negative patients from medical out-patient department (MOPD) of three different
hospitals in Rivers State, Nigeria. Socio-demographic information of each participant was obtained with a structured
questionnaire. Four millilitres of blood were collected from each participant by venipuncture; 2 ml each were dispensed
into ethylene diamine tetra acetic acid (EDTA) and plain bottles for estimation of full blood count (FBC), cluster of
differentiation 4 (CD4), HIV, hepatitis B virus (HBV) and hepatitis C virus (HCV) serology. Continue reading “Comparative analysis of haematological parameters in HIV patients with co-infections of hepatitis B & C, and HIV-negative patients in Rivers State, Nigeria”

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Seroprevalence of Hepatitis C Virus (HCV) antibodies in pregnant women in Anyigba, Kogi State, North Central Nigeria

EO Nwankwo, AM Lawal, M Abba

 

Abstract

Background: Hepatitis C virus (HCV) infection is a major public health concern. The aim of this study was  to ascertain the seroprevalence and risk factors of HCV antibodies among pregnant women in  Anyigba, Kogi State North Central Nigeria.

Materials and methods:Blood samples (5mls) were collected from one hundred and thirty consenting pregnant women attending antenatal clinic in Grimad hospital and eighty non-pregnant women from the out-patient clinic were screened for the presence of HCV antibodies. This was done by Skytech diagnostic  laboratory rapid strip (USA) and confirmed by ELISA method.

Results: Out of 130 pregnant women 9(6.9%) were confirmed to be positive to HCV antibodies. Also out of 80 non-pregnant women of the same age group, used as control, 4(5.0%) were positive.

Conclusion: A prevalence rate of 6.9% calls for urgent attention by policy makers and healthcare providers to begin massive enlightenment of this problem. All pregnant women should be screened for early detection.

Keywords: Hepatitis C Virus, Pregnancy, Screening, Transmission.

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Seroprevalence of Hepatitis C Virus (HCV) antibodies in pregnant women in Anyigba, Kogi State, North Central Nigeria

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Hepatitis C virus-associated porphyria cutanea tarda: A case report

AH Isa, M Mary Tapgun, OC Isichei

 

Abstract

Porhyria cutanea tarda (PCT) is a rare, inherited or acquired disorder due to decreased activity or deficiency of uroporphyrinogen decarboxylase (UROD), one of the enzymes in the haem synthetic pathway. It is characterized by cutaneous manifestations such as erosions, blisters and bulae in the dorsum of the hand, forearm, elbows and knees; and painful indolent sores that heal with dyspigmented and scarring lesions. A 25 year old sales man presented with a 7 month history of recurrent blistering of the skin of the extremities- hands, elbows, knees and feet which occurred spontaneously or following trivial trauma. There was no family history of similar skin symptoms. Examination showed broken and fresh blisters of varying sizes with some healed lesions on the dorsum of the hands, over the elbow and knee joints, and toes. Serum ferritin was 360μ/L (40- 340 μ/L), urine uroporphyrinogen was positive (+++) and Hepatitis C antibodies screening was positive. Some improvement of the cutaneous lesion was noticed following commencement of therapeutic phlebotomy.

Keywords: Porhyria, blisters, Hepatitis C virus, uroporphyrinogen

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Hepatitis C virus-associated porphyria cutanea tarda A case report

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Risk factors for Hepatitis C virus antibody seropositivity among children with sickle cell anaemia in Ilorin, Nigeria

CE Onuchukwu, A Ojuawo, SK Ernest

 

Abstract

Background: Hepatitis C is an infectious disease of the liver caused by the hepatitis C virus (HCV) resulting to a chronic hepatitis. Chronic HCV infection constitutes a serious public health challenge in Nigeria where donor blood is not routinely screened for HCV. Patients with sickle cell anaemia (SCA) are considered a subset of the population at higher
risk of acquiring the virus, due to their frequent needs for transfusion of blood and its products. Other risk factors like scarification markings, tattooing, and circumcision also predispose children to acquiring this infection. However, the magnitude of HCV infection has not been adequately measured in our general population and specific data on HCV in SCA patients are scanty, hence a prospective case controlled study to determine the risk factors that predispose to the acquisition of hepatitis C Virus infection.
Objective: To determine the risk factors for Hepatitis C Virus Antibody Seropositivity among transfused children with SCA in Ilorin.
Subjects and Method: Eighty two transfused SCA children aged 6 months to 14 years were recruited consecutively from February 2008 to January 2009 while eighty four non transfused SCA children of the same age range recruited over the same period served as controls. Hepatitis C virus Antibody screening was done using a second generation ELISA method. Information on the study population were collected by use of a pretested questionnaire by the investigator.
Results: There was a positive correlation between numbers of units of blood transfused and seropositivity. Those who had three or more units of blood had a prevalence rate of more than 50%. There was a strong correlation between seropositivity and scarification marks in both subjects and controls (p=0.001 and 0.02 respectively). Other plausible risk factors for hepatitis C infection tested in this study included circumcision and sharing of clippers which showed no statistically significant difference. No cases of tattooing, drug abuse, needle sharing or sexual activities were seen in this study.
Conclusion: Transfused SCA patients belong to a high risk group for hepatitis C virus infection compared to the non transfused population. The risk of acquisition increases with higher number of transfusions and scarifications marks.

Key words: Hepatitis C virus, Sickle cell anaemia, Risk factors, Blood transfusion.

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Risk factors for Hepatitis C virus antibody seropositivity among children with sickle cell anaemia in Ilorin, Nigeria

 

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Seroprevalence and risk factors of Hepatitis C Virus in patients and blood donors in Kano, Nigeria

O Azeez-Akande, A Sarki, E.E Wokedi, A Olabode, P Alabi

 

Abstract

Hepatitis C virus (HCV) is a major cause of chronic liver disease resulting in cirrhosis and hepatocarcinoma. It is believed to be widespread in Africa but its epidemiology is incomplete and is yet to be determined in many areas of the sub-saharan Africa including Nigeria. Using third generation enzyme immuno-assay (EIA-3) and recombinant immunoblot assay (RIBA) technique as confirmatory test, we examined the prevalence of HCV antibodies in 226 blood donors and 226 patients attending Aminu Kano Teaching Hospital (AKTH) in Kano, Nigeria and evaluated the risk factors of HCV transmission in this environment. HCV antibodies were detected in 0.4% and 2.2% blood donors and patients respectively. The overall HCV seroprevalence was 1.3%. There was increased infection acquisition with increasing age; one (16.7%) HCV infection occurred in 25-34 years age group and 5 or 83.3% in subjects > 45 years in age which was significant (P< 0.05). The ratio of infection in male to female was 1:5. Evidence of previous exposure via transfusion was common in HCV seropositive subjects and could be a major risk factor of acquisition in this environment. Adequate screening of blood products in sub- Saharan Africa (Nigeria inclusive) may minimize the risk of HCV transmission and associated health complications.

Key words: Hepatitis C virus, seroprevalence, patients, blood donors, risk factors.

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Seroprevalence and risk factors of Hepatitis C Virus in patients and blood donors in Kano Nigeria