Publications by authors named "Hesseling P"

Introduction: The role of age and sex in the presentation and outcome of endemic Burkitt lymphoma (BL) has not been studied recently. This study analysed these factors in 934 patients with BL who had received cyclophosphamide and intrathecal methotrexate as treatment.

Methods: Records of 934 children diagnosed with BL from 2004 to 2015 were obtained from our Paediatric Oncology Networked Database (POND) cancer registry.

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Introduction: There is lack of diagnostic and treatment resources with variable access to childhood cancer treatment in low- and middle-income countries (LMIC), which may lead to subsequent poor survival. The primary aim of this study was to determine the prevalence and types of traditional and complementary medicine (T&CM) used in Cameroon. Secondarily, we explored determinants of T&CM use, associated costs, perceived benefits and harm, and disclosure of T&CM use to medical team.

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Introduction: The International Society of Paediatric Oncology-Paediatric Oncology in Developing Countries (SIOP-PODC) group recommended graduated-intensity retinoblastoma treatment for children in low- and middle-income countries with limited local resources.

Aim: The aim was to improve outcome of children with retinoblastoma by means of a treatment protocol for low-income settings as recommended by the SIOP-PODC recommendation in Cameroon.

Methods: Children diagnosed with retinoblastoma between 2012 and 2016 were treated in two Baptist Mission hospitals in Cameroon, staging according to the International Retinoblastoma Staging System.

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Background: 'Treatmentabandonment' is a common and preventable cause of childhood cancer treatment failure in low- and middle-income countries (LMIC). Risk factors and effective interventions in LMIC are reported. Poverty and costs of treatment are perceived as overriding causes in sub-Saharan Africa.

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Background: Deaths during paediatric cancer treatment are common in Africa. It is often difficult to distinguish between treatment-related and disease-related causes. To prevent these deaths, it is important to study them and identify the cause.

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Background: Death during paediatric cancer treatment is common in sub-Saharan Africa. Using the infrastructure of Supportive Care for Children with Cancer in Africa (SUCCOUR), our objective was to describe fever and neutropenia (FN) characteristics and outcomes in order to identify potential areas for future intervention.

Methods: A multicentre prospective, observational cohort study was conducted in sub-Saharan Africa.

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Background: Before the year 2000, there was no dedicated childhood cancer service in Cameroon. The aim of this study was to investigate the progress made with pediatric oncology care in Cameroon from 2000 to 2020.

Method: A literature search was conducted for published articles on childhood cancer in Cameroon and relevant documents, and conference abstracts were reviewed.

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Aim: Early cancer diagnosis is necessary to improve survival rates. The aim of this study was to assess the outcome and cost of the childhood cancer training programme amongst healthcare workers.

Design: This was a prospective pre-post study design, using questionnaires for pre- and post-training testing.

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Effective cancer registration is required for the development of cancer management policies, but is often deficient in the developing world. In 2008 cancer registration was set up Banso Baptist Hospital and Mbingo Baptist Hospital in the Northwest region of Cameroon, using the Pediatric Oncology Networked Database (POND). The objective of this study was to analyze the POND registry data for patients with cancer aged 0-15 years for the period 2004-15.

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Purpose: Adequate clinical services have yet to be established in the majority of African countries, where childhood cancer survival rates vary from 8.1% to 30.3%.

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Introduction: The Collaborative Wilms Tumour (WT) Africa Project implemented an adapted WT treatment guideline in six centres in sub-Saharan Africa. The primary objectives were to describe abandonment of treatment, death during treatment, event-free survival (EFS) and relapse following implementation. An exploratory objective was to compare outcomes with the baseline evaluation, a historical cohort preceding implementation.

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Background: Burkitt lymphoma (BL) is a curable childhood cancer. Treatment adherence is crucial for a good outcome, but is potentially problematic in low- and middle-income countries owing to parental financial constraints.

Aims: To investigate the association of destitution with treatment adherence and its effect on the survival of patients with BL.

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Organophosphate (OP) induced seizures are commonly treated with anticholinergics, oximes and anticonvulsants. Inhibition of P-glycoprotein (PgP) has been shown to enhance the efficacy of nerve agent treatment in soman exposed rats. In the present study, the promising effects of the PgP inhibitor tariquidar were investigated in more detail in rats s.

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The prevalence of HIV in Burkitt's lymphoma (BL) patients and the outcome of treatment in Cameroon were unknown. Records of all patients diagnosed with BL at three Cameroon Baptist Convention hospitals were reviewed to ascertain the recorded HIV status and outcome of treatment. Of 979 patients diagnosed with BL, 717 were tested for HIV and 11 (1.

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Background: The Collaborative Wilms Tumour (WT) Africa Project has implemented an adapted WT treatment guideline in sub-Saharan Africa as a multi-centre prospective clinical trial. A retrospective, baseline evaluation of end-of-treatment outcome was performed for a 2-year period prior to the introduction of this guideline. The collaborative project aims to reduce both treatment abandonment and death during treatment to less than 10% for improving survival.

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There is little published information on effective treatment of Kaposi's sarcoma (KS) in children in low-income countries. We prospectively treated 12 patients with an institutional review board-approved protocol consisting of four monthly courses of doxorubicin (Adriamycin), bleomycin and vincristine sulphate (ABV), with highly active antiretroviral therapy (HAART) plus co-trimoxazole prophylaxis for those who were HIV-positive, with additional vincristine if remission was not achieved after 4 months. Maintenance HAART plus co-trimoxazole was given to all HIV-positive patients.

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Significant strides have been made in the treatment of childhood cancer. Improvements in survival have led to increased attention toward supportive care indications; including the use of traditional and complementary medicine (T&CM). The use of T&CM among children and adolescents with cancer is well documented in both high-income countries (HICs) and low-middle income countries (LMICs).

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Background: Cancer is a major cause of death in children worldwide, and the recorded incidence tends to increase with time. Internationally comparable data on childhood cancer incidence in the past two decades are scarce. This study aimed to provide internationally comparable local data on the incidence of childhood cancer to promote research of causes and implementation of childhood cancer control.

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Background: Burkittlymphoma(BL) is the most common childhood cancer in Cameroon with a reported incidence of 3 per 100,000 children under 15 years in the Northwest region. Treatment at three Baptist mission hospitals has a recorded cure rate of over 50%. Traditional medicine(TM) is recognized by the national health system, but its scope is undefined and entraps children with BL.

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Article Synopsis
  • Dexamphetamine (AMPH) is a psychostimulant used for both recreational purposes and the treatment of ADHD, but repeated exposure can harm dopamine (DA) neuron terminals.
  • A study conducted on rats showed that those pre-treated with AMPH had a heightened BOLD response in DA-related brain areas during a methylphenidate (MPH) challenge, indicating altered DAergic functions.
  • Further analyses indicated reduced DA transporter density and increased DA metabolites, suggesting that AMPH alters dopamine release and binding, highlighting phMRI's potential as a non-invasive tool for studying dopamine-related changes in drug research and neuropsychiatric conditions.
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Dopaminergic neurotransmission in the striatum has been widely implicated in the reinforcing properties of substances of abuse. However, the striatum is functionally heterogeneous, and previous work has mostly focused on psychostimulant drugs. Therefore, we investigated how dopamine within striatal subregions modulates alcohol-directed behaviour in rats.

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Contradictory findings have been reported from Africa with regard to the risk of developing Burkitt's lymphoma (BL) in sickle cell trait (AS)carriers. Haemoglobin electrophoresis was performed in 78 BL patients in the Northwest region of Cameroon, and in 78 nearest-neighbourcontrols of the same age, sex and tribe from the same village. AS was confirmed in 4 of 78 (5.

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Magnesium (Mg) has been described to possess an anxiolytic function, but a number of studies present inconsistent results on this matter. In this study the effect of Mg deficiency on anxiety-related behavior, brain and blood plasma Mg in young adult male C57BL/6JOlaHsd and C57BL/6NCrl mice was studied. The animals were put on a control or Mg deficient diet from day 0 and significant hypomagnesaemia was evident from day 12 onwards in the test animals.

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Background: Alcohol is one of the most commonly used psychoactive substances. Prolonged alcohol use can result in alcohol use disorder (AUD), characterized by excessive and compulsive alcohol consumption. Importantly, however, the development of AUD only happens in a minority of individuals who consume alcohol.

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