1,041 results match your criteria: "Institute of Endemic Diseases[Affiliation]"

Patient-level performance evaluation of a smartphone-based malaria diagnostic application.

Malar J

January 2023

Lister Hill National Center for Biomedical Communications, National Library of Medicine, National Institutes of Health, MD, Bethesda, USA.

Background: Microscopic examination is commonly used for malaria diagnosis in the field. However, the lack of well-trained microscopists in malaria-endemic areas impacted the most by the disease is a severe problem. Besides, the examination process is time-consuming and prone to human error.

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The apparent failure of global health security to prevent or prepare for the COVID-19 pandemic has highlighted the need for closer cooperation between human, animal (domestic and wildlife), and environmental health sectors. However, the many institutions, processes, regulatory frameworks, and legal instruments with direct and indirect roles in the global governance of One Health have led to a fragmented, global, multilateral health security architecture. We explore four challenges: first, the sectoral, professional, and institutional silos and tensions existing between human, animal, and environmental health; second, the challenge that the international legal system, state sovereignty, and existing legal instruments pose for the governance of One Health; third, the power dynamics and asymmetry in power between countries represented in multilateral institutions and their impact on priority setting; and finally, the current financing mechanisms that predominantly focus on response to crises, and the chronic underinvestment for epidemic and emergency prevention, mitigation, and preparedness activities.

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Objective: Cardiac fibroblasts (CFs) proliferation and extracellular matrix deposition are important features of cardiac fibrosis. Various studies have indicated that vitamin D displays an anti-fibrotic property in chronic heart diseases. This study explored the role of vitamin D in the growth of CFs via an integrin signaling pathway.

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Active circulation of varicella zoster virus among different age groups in Sudan.

Epidemiol Infect

December 2022

Clinical and Applied Virology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.

In Sudan, data on varicella infections are lacking and the vaccine is currently not in use. The aim of this study was to investigate previous exposure to varicella zoster virus (VZV) among children and adults from the general population and among health-care workers (HCWs) in Khartoum. Dried blood spot samples collected between 2015 and 2016 from 294 children aged 1‒15 years, 153 adult volunteers and 241 HCWs were investigated for the presence of VZV IgG antibodies using ELISA.

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[Expression and Regulatory Mechanism of Autophagy-related Genes in Synovial Tissues of Patients with Rheumatoid Arthritis].

Zhongguo Yi Xue Ke Xue Yuan Xue Bao

December 2022

Department of Epidemiology and Health Statistics,School of Public Health, Shaanxi University of Chinese Medicine,Xianyang,Shaanxi 712046,China.

Objective To investigate the expression regulation of autophagy-related genes(ATG)and the mechanism of autophagy in rheumatoid arthritis(RA).Methods The differentially expressed genes(DEG)of RA were identified from GSE55235 and GSE55457,on the basis of which the differentially expressed autophagy-related genes(DE-ATG)were selected from the Human Autophagy Database.STRING 11.

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Alloferon and Zanamivir Show Effective Antiviral Activity against Influenza A Virus (H1N1) Infection In Vitro and In Vivo.

Int J Mol Sci

December 2022

Laboratory of Vitamin C and Antioxidant Immunology, Department of Anatomy and Cell Biology, Seoul National University College of Medicine, Seoul 03080, Republic of Korea.

The use of vaccines is the most effective and reliable method for the prevention of viral infections. However, research on evaluation of effective therapeutic agents for use in treatment after infection is necessary. Zanamivir was administered through inhalation for treatment of pandemic influenza A/H1N1 in 2009.

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In Vitro Evaluation of Two Novel Antimalarial Derivatives of SKM13: SKM13-MeO and SKM13-F.

Korean J Parasitol

December 2022

Department of Tropical Medicine and Parasitology, Medical Research Center, Institute of Endemic Diseases, Seoul National University, Seoul 03080, Korea.

Article Synopsis
  • * Two novel derivatives, SKM13-MeO and SKM13-F, were created by modifying an existing drug (SKM13) to alter its electron density and assessed for cytotoxicity and effectiveness against different stages of the malaria parasite.
  • * The results indicated that the new derivatives reduced the drug's toxicity compared to SKM13, but their effectiveness was lower, especially SKM13-F, suggesting that adding electron-donating groups (-OMe) may be more effective in retaining antimalarial activity than electron-withdrawing groups (-F).
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Anopheles stephensi in Africa: vector control opportunities for cobreeding An. stephensi and Aedes arbovirus vectors.

Trends Parasitol

February 2023

Institute of Endemic Diseases, University of Khartoum, Khartoum 11111, Sudan; Swiss Tropical and Public Health Institute (Swiss TPH), 4123 Allschwil, Switzerland; University of Basel, Petersplatz 1, CH 4001, Basel, Switzerland. Electronic address:

Anopheles stephensi is an urban malaria vector native in some Asian countries and recently emerged in Africa as an invasive vector competent in transmitting Plasmodium falciparum and P. vivax. The coexistence of An.

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Expression of mA Methylation Regulator in Osteoarthritis and Its Prognostic Markers.

Cartilage

September 2023

Institute of Endemic Diseases and Key Laboratory of Trace Elements and Endemic Diseases, National Health Commission of the People's Republic of China, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, P.R. China.

Objective: Osteoarthritis (OA) is a multifactorial disorder, in which genetic factors are strongly associated with its development. However, the pathogenesis of OA is still unclear, and recently it has been observed that epigenetic modifications are also involved in the pathogenesis of OA. This study aims to study the potential role of mA-related genes in the occurrence and development of OA.

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Complete mitochondrial genome and phylogenetic analysis of (Acari: Ixodidae).

Mitochondrial DNA B Resour

November 2022

Integrated Laboratory of Pathogenic Biology, College of Preclinical Medicine, Dali University, Dali, P. R. China.

is referred to as an obligatory blood-sucking ectoparasite that is capable to infest both humans and animals. In the present study, the complete mitochondrial genome of was sequenced and analyzed using next-generation sequencing (NGS) technology. With a size of 14,520 bp, the entire mitogenome contains 37 genes including 13 protein-coding genes (PCGs), 22 transfer RNAs (tRNAs), 2 ribosomal RNAs (rRNAs), and 3 control regions (D-loops).

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Molecular characterization and genotyping of hepatitis C virus from Sudanese end-stage renal disease patients on haemodialysis.

BMC Infect Dis

November 2022

Hepatitis Virus Diversity Research Unit, Department of Internal Medicine, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, 2193, Johannesburg, South Africa.

Background: Hepatitis C virus (HCV) is a global public health problem, with ~ 11 million people in Africa infected. There is incomplete information on HCV in Sudan, particularly in haemodialysis patients, who have a higher prevalence compared to the general population. Thus, our objectives were to genotype and molecularly characterize HCV isolated from end-stage renal disease haemodialysis patients.

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Anti-malarial activity of HCl salt of SKM13 (SKM13-2HCl).

Int J Parasitol Drugs Drug Resist

December 2022

Department of Tropical Medicine and Parasitology, Medical Research Center, Institute of Endemic Diseases, Seoul National University, Seoul, 03080, Republic of Korea; Department of Tropical Medicine and Parasitology, Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul, 03080, Republic of Korea. Electronic address:

Article Synopsis
  • Malaria is a major health issue in developing countries, creating a need for new antimalarial drugs with single-dose efficacy and innovative action.
  • The study focused on a new compound, SKM13-2HCl, which was modified for better water solubility and showed improved effectiveness in killing malaria parasites in laboratory and mouse models.
  • Results indicated that SKM13-2HCl not only increased survival rates in infected mice to 100% but also had better solubility and comparable efficacy to its predecessor, SKM13, suggesting it as a promising candidate for further development.
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Objective: Mycetoma is a neglected tropical disease caused by more than 70 different microorganisms and identified by the WHO as one of the high-priority diseases for developing diagnostic tests. To ensure the production of diagnostic assays for use by clinical staff in endemic regions, target product profiles (TPPs) were designed.

Methods: We describe the development of two TPPs: one for a diagnostic test able to identify the causative agent of mycetoma and another that would determine when treatment could be stopped.

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The Spike Protein of SARS-coV2 19B (S) Clade Mirrors Critical Features of Viral Adaptation and Coevolution.

Microorganisms

October 2022

Unit of Disease and Diversity, Department of Molecular Biology, Institute of Endemic Diseases, Khartoum University, Khartoum P.O Box 102, Sudan.

Pathogens including viruses evolve in tandem with diversity in their animal and human hosts. For , the focus is generally for understanding such coevolution on the virus spike protein, since it demonstrates high mutation rates compared to other genome regions, particularly in the receptor-binding domain (RBD). Viral sequences of the 19B (S) clade and variants of concern from different continents were investigated, with a focus on the A.

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Objectives: Botryomycosis is a rare chronic granulomatous inflammatory disease of bacterial origin. Two forms of the disease exist; the cutaneous and the visceral form. The subcutaneous form mimics actinomycetoma clinically and histologically; however, the treatment is different.

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As part of our surveys of the invasive malaria vector in four Sudanese states, including North and South Kordofan, Sennar, and White Nile, we collected 166 larvae. Our morphological identification confirmed that 30% of the collected mosquito samples were species, namely and , while the 117 specimens were (39%), (32%), (9%), (9%), (6%), (3%), and (3%). Considering the serious threat of emergence for the public health in the area and our limited resources, we prioritized samples for further genomic analysis.

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Bioanalytical assay development and validation procedures were performed to quantify antiprotozoal drug paromomycin in human skin tissue by ultra-high performance liquid chromatography coupled to tandem mass spectrometry. Paromomycin, an aminoglycoside drug, is administered intra-muscularly and used in the treatment of multiple clinical presentations of the neglected tropical disease leishmaniasis. It is currently studied in the treatment of post-kala-azar dermal leishmaniasis, a disease where the Leishmania parasites divide and reside in the skin.

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Epidemiological Characteristics of Human and Animal Plague in Yunnan Province, China, 1950 to 2020.

Microbiol Spectr

December 2022

State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, People's Republic of China.

This study analyzed the epidemiological characteristics of 3,464 human plague cases and the distribution pattern of 4,968 Yersinia pestis isolates from humans, hosts, and vector insects from 1950 to 2020 among two natural plague foci in Yunnan Province, China. These foci include the Rattus flavipectus plague focus of the Yunnan, Guangdong, and Fujian provinces and the Apodemus chevrieriEothenomys miletus plague focus of the highlands of northwestern Yunnan Province. The case fatality rate for plague in humans was 18.

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Chigger mites are arthropods and are the sole vectors of scrub typhus, and rodents as well as other small mammals are the most common hosts of chigger mite larvae. Therefore, it is of great medical significance to study the ecology of chigger mites. In this study, a detailed analysis of chigger mites was conducted based on field survey data.

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Not only are many Mycobacteria pathogens, but they can act as strong non-specific immunopotentiators, generating beneficial effects on the pathogenesis of some diseases. However, there has been no direct evidence of the effect of mycobacterial species on colorectal cancer (CRC). Herein, we showed that there may be a meaningful inverse correlation between the incidence of tuberculosis and CRC based on global statistics and that heat-killed Mycobacterial tuberculosis and live Mycobacterium bovis (Bacillus Calmette-Guérin strain) could ameliorate CRC development.

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Background: This study aimed to determine whether paromomycin plus miltefosine (PM/MF) is noninferior to sodium stibogluconate plus paromomycin (SSG/PM) for treatment of primary visceral leishmaniasis in eastern Africa.

Methods: An open-label, phase 3, randomized, controlled trial was conducted in adult and pediatric patients at 7 sites in eastern Africa. Patients were randomly assigned to either 20 mg/kg paromomycin plus allometric dose of miltefosine (14 days), or 20 mg/kg sodium stibogluconate plus 15 mg/kg paromomycin (17 days).

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One Health, an integrated health concept, is now an integral part of health research and development. One Health overlaps with other integrated approaches to health such as EcoHealth or Planetary Health, which not only consider the patient or population groups but include them in the social-ecological context. One Health has gained the widest foothold politically, institutionally, and in operational implementation.

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Article Synopsis
  • * A systematic review and meta-analysis of 20 studies involving over 6,400 participants assessed the impact of primaquine on hemoglobin levels and adverse effects, focusing on those with and without G6PD deficiency.
  • * Results showed no significant hemoglobin reduction in G6PD-normal individuals, but a notable drop in G6PD-deficient patients; serious adverse events were rare, with only one report of a blood transfusion and no deaths linked to primaquine.
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