Alexander Kwarteng

Alexander Kwarteng
Kwame Nkrumah University Of Science and Technology | KNUST · Department of Biochemistry and Biotechnology

PhD Molecular Biomedicine

About

82
Publications
19,151
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690
Citations
Citations since 2016
73 Research Items
621 Citations
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Introduction
My research interest is in host-pathogen interaction, with a special focus on neglected tropical diseases. In addition, my lab uses immunoinformatic and computational tools to study molecular simulation dynamics of suitable drug or vaccine targets.

Publications

Publications (82)
Article
Full-text available
Background : Lymphatic filariasis (LF) is a debilitating neglected tropical disease that remains a major public challenge in endemic countries. In addition to providing mass drugs administration (ivermectin, albendazole and diethylcarbamazine) to reduce parasite burden in endemic communities, there is also a need to mitigate the challenges associat...
Article
Cerebral malaria (CM) is a rare but fatal form of severe malaria sequelae. Host-derived biomarkers have the potential to assist in the early assessment, diagnosis, and prognosis of CM. However, previously reported host-derived CM biomarkers have limited clinical utility despite their ability to discriminate between CM and non-CM conditions, either...
Article
Full-text available
Background: Lymphatic Filariasis (LF), a neglected tropical disease, has been speculated to be complicated by secondary bacteria, yet a systematic documentation of these bacterial populations is lacking. Thus, the primary focus of this study was to profile bacteria diversity in the progression of filarial lymphedema among LF individuals with or wi...
Article
Full-text available
Background Antimicrobial resistance is associated with increased morbidity in secondary infections and is a global threat owning to the ubiquitous nature of resistance genes in the environment. Recent estimate put the deaths associated with bacterial antimicrobial resistance in 2019 at 4.95 million worldwide. Lymphatic filariasis (LF), a Neglected...
Article
Full-text available
Background Filarial pathologies such as lymphedema may be associated with complications such as chronic non-healing wounds. Nonetheless, the role of bacterial population colonizing the lymphedematous legs has been posited to worsen the conditions of those living with the infection. These bacteria are usually composed of staphylococcal species partl...
Article
Full-text available
Filarial infections caused by nematodes are one of the major neglected tropical diseases with public health concern. Although there is significant decrease in microfilariae (mf) prevalence following mass drug administration (IVM/DEC/ALB administration), this is transient, in that there is reported microfilaria repopulation 6-12 months after treatme...
Article
Full-text available
Background Atherosclerosis is a complex lipid-driven inflammatory disease in which numerous cell types and inflammatory mediators are involved in the progression of hypertension to stroke. Mediators’ markers that could predict the progression of hypertension to stroke are of research importance. We assessed the predictive value of individual and co...
Article
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Background and aims: Children with sickle cell disease (SCD) have an increased risk of multiple hemotransfusions and this can predispose them to elevated iron stores. The objectives of the study were to determine the extent of elevated iron stores and the associated risk factors in a population of steady-state SCD children in Ghana. Methods: Thi...
Article
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Introduction: The active form of vitamin D has immunomodulatory and anti-inflammatory effect. Vitamin D is implicated in pathogenesis of rheumatoid arthritis (RA) and its deficiency leads to increased inflammation. Moreover, its production is dependent on concentration of calcium, phosphorus, and parathyroid hormone (PTH). Cytokines mediates infla...
Chapter
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Filarial infections caused by nematodes mainly include lymphatic filariasis (LF) and Onchocerciasis (Oncho), causing severe morbidities such as elephantiasis, skin diseases and blindness. From the World Health organization, Ivermectin (IVM) and Albendazole are the main drugs of choice to be used for mass drug administration (MDA) in Africa. Althoug...
Preprint
Full-text available
Background: Antimicrobial resistance is associated with increased morbidity in secondary infections and is a global threat owning to the ubiquitous nature of resistance genes in the environment. Recent estimates put the deaths associated with bacterial antimicrobial resistance in 2019 at 4.95 million worldwide. Lymphatic filariasis (LF), a Neglecte...
Article
Full-text available
Lymphatic filariasis (LF) is a public health menace, especially in developing countries. A periodic review of mass drug administration (MDA) performance is critical to monitoring elimination progress. However, investigating the spatial pattern of LF with respect to MDA intervention is yet to be documented. This is essential to appreciating the tran...
Article
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The outbreak of the deadly novel coronavirus disease (COVID-19) has disrupted life worldwide in an unprecedented manner. Over the period, scientific breakthroughs have resulted in the rollout of many vaccination programmes to protect against the disease, reduce the fear and ease public health restrictions for lives to return to some normalcy. The a...
Article
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Background In estimating the global burden of cancer, adolescents and young adults with cancer are often overlooked, despite being a distinct subgroup with unique epidemiology, clinical care needs, and societal impact. Comprehensive estimates of the global cancer burden in adolescents and young adults (aged 15–39 years) are lacking. To address this...
Article
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Background The sustainable development goals (SDGs) aim to end HIV/AIDS as a public health threat by 2030. Understanding the current state of the HIV epidemic and its change over time is essential to this effort. This study assesses the current sex-specific HIV burden in 204 countries and territories and measures progress in the control of the epid...
Article
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Background The sustainable development goals (SDGs) aim to end HIV/AIDS as a public health threat by 2030. Understanding the current state of the HIV epidemic and its change over time is essential to this effort. This study assesses the current sex-specific HIV burden in 204 countries and territories and measures progress in the control of the epid...
Article
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Background Tuberculosis is a major contributor to the global burden of disease, causing more than a million deaths annually. Given an emphasis on equity in access to diagnosis and treatment of tuberculosis in global health targets, evaluations of differences in tuberculosis burden by sex are crucial. We aimed to assess the levels and trends of the...
Article
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The T cell immune responses in filarial infections are primarily mediated by CD4 ⁺ T cells and type 2-associated cytokines. Emerging evidence indicates that CD8 ⁺ T cell responses are important for anti-filarial immunity, however, could be suppressed in co-infections. This review summarizes what we know so far about the activities of CD8 ⁺ T cell r...
Article
Full-text available
Onchocerciasis, caused by Onchocerca volvulus, affects more than 37 million people worldwide. Despite the progress achieved with mass drug distribution, suitable vaccines against onchocerciasis are needed to effectively eliminate the infection. The O. volvulus cysteine protease inhibitor (onchocystatin) is an immuno-dominant antigen detected in O....
Article
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Abstract Circulating tumor DNA (ctDNA) sequencing studies could provide novel insights into the molecular pathology of cancer in sub-Saharan Africa. In 15 patient plasma samples collected at the time of diagnosis as part of the Ghana Breast Health Study and unselected for tumor grade and subtype, ctDNA was detected in a majority of patients based o...
Article
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Background Measuring routine childhood vaccination is crucial to inform global vaccine policies and programme implementation, and to track progress towards targets set by the Global Vaccine Action Plan (GVAP) and Immunization Agenda 2030. Robust estimates of routine vaccine coverage are needed to identify past successes and persistent vulnerabiliti...
Article
Full-text available
Background: Measuring routine childhood vaccination is crucial to inform global vaccine policies and programme implementation, and to track progress towards targets set by the Global Vaccine Action Plan (GVAP) and Immunization Agenda 2030. Robust estimates of routine vaccine coverage are needed to identify past successes and persistent vulnerabilit...
Conference Paper
Purpose: Analysis of cell free DNA could provide a rapid and non-invasive approach to detect cancer and provide new molecular insights in many African countries where expert pathology is lacking. Hence, we tested whether whole-genome sequencing of cfDNA (WGS-cfDNA) could identify somatic alterations that drive breast cancer. Methods: We conducted a...
Article
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Background. Vitamin D is a steroid hormone important for the normal functioning of the body. It is produced through skin exposure to sunlight and from the diet. Although Ghana is located in the tropics where sunlight is abundant, factors like culture, diet, skin pigmentation, variation in the ozone layer, and geographical area influence the optimiz...
Article
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Resistance to Tuberculosis drugs has become a major threat to the control of tuberculosis (TB) globally. We conducted the first nation-wide drug resistance survey to investigate the level and pattern of resistance to first-line TB drugs among newly and previously treated sputum smear-positive TB cases. We also evaluated associations between potenti...
Article
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Human filarial infections are vector-borne nematode infections, which include lymphatic filariasis, onchocer-ciasis, loiasis, and mansonella filariasis. With a high prevalence in developing countries, filarial infections are responsible for some of the most debilitating morbidities and a vicious cycle of poverty and disease. Global initiatives set...
Article
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Following the detection of the first imported case of COVID-19 in the northern sector of Ghana, we molecularly characterized and phylogenetically analysed sequences, including three complete genome sequences, of severe acute respiratory syndrome coronavirus 2 obtained from nine patients in Ghana. We performed high-throughput sequencing on nine samp...
Article
Full-text available
Filarial infections affect millions of individuals and are responsible for some notorious disabilities. Current treatment options involve repeated mass drug administrations, which have been met with several challenges despite some successes. Administration of doxycycline, an anti-Wolbachia agent, has shown clinical effectiveness but has several lim...
Article
Full-text available
Background The association between prolong metformin usage and B12 deficiency has been documented. However, the prevalence estimates of metformin-induced vitamin B12 deficiency showed substantial disparity among studies due to varied study definitions of vitamin B12 deficiency. Metformin blocks the calcium dependent absorption of the vitamin B12-In...
Article
Full-text available
The D614G variant of SARS-CoV-2 S-protein emerged in early 2020 and quickly became the dominant circulating strain in Europe and its environs. The variant was characterized by the higher viral load, which is not associated with disease severity, higher incorporation into the virion, and high cell entry via ACE-2 and TMPRSS2. Previous strains of the...
Article
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The transcription factor NF-κB promotes immunity by controlling the expression of genes involved in inflammation. Cytokines and pathogen-associated molecular patterns stimulate cell surface receptors, including toll-like receptors, to initiate a signalling cascade resulting in the activation of NF-κB. NF-κB drives the expression of target genes tha...
Preprint
Full-text available
Background Lymphatic filariasis (LF) is a neglected tropical disease with several infection phenotypes. In addition to mass drug administration, host immune response contributes to microfilariae clearance. An important influence of immunity, nutritional status, remains to be evaluated among filarial lymphedema patients. This study sought to assess...
Article
Full-text available
Background Lymphatic Filariasis (LF), a parasitic nematode infection, poses a huge economic burden to affected countries. LF endemicity is localized and its prevalence is spatially heterogeneous. In Ghana, there exists differences in LF prevalence and multiplicity of symptoms in the country’s northern and southern parts. Species distribution models...
Article
Full-text available
Background: Human lymphatic filarial pathology is the leading cause of disability and poverty among people living with the infection. The second goal of the Global Programme to Eliminate Lymphatic Filariasis (GPELF) is to manage the disease's morbidity to improve patients' quality of life. Consequently, the current study assessed the overall quali...
Article
Full-text available
While M1 macrophages initiate wound healing by inducing the inflammation phase, M2 macrophages are crucial in the proliferation phase by producing growth factors that accelerate new tissue formation. Turmeric (Curcuma longa L.) is known to accelerate wound closure; however, mechanisms underlying the wound healing properties of C. longa L. remain to...
Conference Paper
Full-text available
Cancer incidence is rising and mortality rates are high in Africa, where access to molecular pathology is limited. Analysis of cancer-related mutations in circulating tumor DNA (ctDNA) from cell-free DNA (cfDNA) that is shed into the bloodstream by tumor cells could be transformative to the African continent and provide new molecular insights. Usin...
Preprint
Full-text available
Background: The association between prolong metformin usage and B12 deficiency has been documented. However, the prevalence estimates of metformin-induced vitamin B12 deficiency showed substantial disparity among studies due to varied study definitions of vitamin B12 deficiency. Metformin blocks the calcium dependent absorption of the vitamin B12-I...
Preprint
Full-text available
Lymphatic Filariasis (LF), a parasitic nematode infection, often resulting in disability poses huge economic burden to affected countries. To meet eradication deadlines in line with the global Neglected Tropical Diseases elimination and health system strengthening goals, novel strategies are needed to complement existing approaches. LF endemicity i...
Preprint
Full-text available
Circulating tumor DNA (ctDNA) sequencing studies could provide novel insights into the molecular pathology of cancer in sub-Saharan Africa. ctDNA was readily detected in 15 blood samples collected in Ghana at the time of suspected breast cancer. Genomic alterations previously associated with unfavorable prognostic outcomes were observed in the majo...
Preprint
Full-text available
Recently, several mutations in the SARS-CoV-2 genome have been identified and reported. However, little is currently known about the influence of these mutations on the infectivity, transmissibility and antigenicity of the virus. Here, using an integrative computational approach, we characterized the G476S variant of SARS-CoV-2 focusing on interact...
Preprint
Full-text available
The G476S mutation of the SARS-CoV-2 S-protein occurs in the receptor binding domain (RBD), the region that binds to the human angiotensin-converting enzyme 2 (hACE-2) receptor and also the main target for neutralizing antibodies. The 476S variant was first reported in the USA. Emerging evidence show that the 476S variant resists neutralization by...
Preprint
Full-text available
The G476S mutation of the SARS-CoV-2 S-protein occurs in the receptor binding domain (RBD), the region that binds to the human angiotensin-converting enzyme 2 (hACE-2) receptor and also the main target for neutralizing antibodies. The 476S variant was first reported in the USA. Emerging evidence show that the 476S variant resists neutralization by...
Article
Full-text available
The occurrence of the SARS-CoV2 infection has become a worldwide threat and the urgent need to discover therapeutic interventions remains paramount. The primary roles of the coronavirus nucleocapsid (N) protein are to interact with the viral genome and pack them into ribonucleoprotein complex. It also plays critical roles at many stages of the vira...
Preprint
Full-text available
In regions lacking genomic data, analysis of sequences from the early stages of an outbreak can provide important insights into the diversity of pathogens present. Following the detection of the first imported case of COVID-19 in the Northern sector of Ghana on 13th March 2020, we have now molecularly characterized and phylogenetically analysed seq...
Preprint
Full-text available
Background Human lymphatic filarial pathology is the main cause of disability and poverty among people living with the infection. The second goal of the Global Programme to Eliminate Lymphatic Filariasis (GPELF) is to manage the morbidity associated with the disease with the purpose of improving the quality of life of the patients. Consequently, th...
Preprint
Full-text available
Background Human lymphatic filarial pathology is the main cause of disability and poverty among people living with the infection. The second goal of the Global Programme to Eliminate Lymphatic Filariasis (GPELF) is to manage the morbidity associated with the disease with the purpose of improving the quality of life of the patients. Consequently, th...
Preprint
Full-text available
Background: Human lymphatic filarial pathology is the main cause of disability and poverty among people living with the infection. The second goal of the Global Programme to Eliminate Lymphatic Filariasis (GPELF) is to manage the morbidity associated with the disease with the purpose of improving the quality of life of the patients. Consequently, t...
Preprint
Full-text available
Background Human lymphatic filarial pathology is the main cause of disability and poverty among people living with the infection. The second goal of the Global Programme to Eliminate Lymphatic Filariasis (GPELF) is to manage the morbidity associated with the disease with the purpose of improving the quality of life of the patients. Consequently, th...
Preprint
Full-text available
Background Human lymphatic filarial pathology is the leading cause of disability and poverty among people living with the infection. The second goal of the Global Programme to Eliminate Lymphatic Filariasis (GPELF) is to manage the disease's morbidity to improve patients' quality of life. Consequently, the current study assessed the overall quality...
Article
Full-text available
Malaria remains a public health problem throughout the world including Indonesia. Approximately, 10.7 million people are reported to be living in malaria-endemic areas in Indonesia of which 261,671 cases of malaria was recorded in 2017. One of the plants empirically used as an antimalarial drug is (Cayratiatrifolia (L.) Domin). The antimalarial act...
Preprint
Full-text available
Background Human lymphatic filarial pathology is the main cause of disability and poverty among people living with the infection. The second goal of the Global Programme to Eliminate Lymphatic Filariasis (GPELF) is to manage the morbidity associated with the disease with the purpose of improving the quality of life of the patients. Consequently, th...
Article
Full-text available
Purpose The purpose of the study is to assess the nutritional and health status of people living with HIV/AIDS (18-60 years) in selected health facilities in the eastern region of Ghana and to determine the influence nutrition support programmes (NSP) have on the nutritional and health status of people living with HIV/AIDS. Design/methodology/appr...
Article
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Background: The widespread use of social media applications on mobile phones indicate that smart phones have become more than just a simple medium for voice calling. Several studies have shown the potential benefit of these social media applications in discussing many health conditions. We report on tracking sample transport by public and private t...