scholarly journals Phylogenetic Positioning of a Strongyloides stercoralis Isolate Recovered from a Korean Patient and Comparison with Other Asian Isolates

2020 ◽  
Vol 58 (6) ◽  
pp. 689-694
Author(s):  
Jaeho Bae ◽  
Mi Jin Jeong ◽  
Dong hoon Shin ◽  
Hyun Woo Kim ◽  
Sung Ho Ahn ◽  
...  
Keyword(s):  
Genomic Dna ◽  
Neglected Tropical Diseases ◽  
Strongyloides Stercoralis ◽  
Wall Thickening ◽  
Korean Isolate ◽  
Tropical Diseases ◽  
Asian Countries ◽  
Retroperitoneal Lymph Node ◽  
Korean Patient ◽  
Descending Colon

Strongyloidiasis is caused by <i>Strongyloides stercoralis</i> and is one of the most neglected tropical diseases in tropical and subtropical regions. Although several strongyloidiasis cases have been reported in Korea, genetic analysis of Korean isolates is still incomplete. In this study, a parasite was isolated from a 61-year-old man diagnosed with strongyloidiasis during the treatment of lymphoma on his retroperitoneal lymph node. Diffuse symmetric wall thickening from the ascending to descending colon and a nematode-infected intestine was observed following microscopic examination. Genomic DNA was isolated from a patient tissue block, and <i>S. stercoralis</i> was identified by PCR and sequencing (18S rDNA). In order to determine phylogenetic location of a Korean isolate (named KS1), we analyzed <i>cox</i>1 gene (500-bp) and compared it with that from 47 previous <i>S. stercoralis</i> isolates (28 human isolates and 19 canid isolates) from Asian countries. Our results showed that phylogenetic tree could clearly be divided into 5 different groups according to hosts and regions. KS1 was most closely related with the Chinese isolates in terms of genetic distance.

Schistosomiasis, strongyloidiasis and Chagas disease: the leading imported neglected tropical diseases in Italy

2019 ◽  
Vol 27 (1) ◽  
Author(s):  
Lorenzo Zammarchi ◽  
Federico Gobbi ◽  
Andrea Angheben ◽  
Michele Spinicci ◽  
Dora Buonfrate ◽  
...  
Keyword(s):  
Chagas Disease ◽  
Neglected Tropical Diseases ◽  
Agar Plate ◽  
Strongyloides Stercoralis ◽  
Stool Culture ◽  
Diagnostic Tools ◽  
Tropical Diseases ◽  
Foreign Born ◽  
National Policies ◽  
And Control

Abstract Background In recent years, an increasing number of individuals affected by neglected tropical diseases (NTDs) have been observed in Italy, due to migration, international travels and climate changes. Reliable data on the current NTD epidemiology in Italy and the health system preparedness on this issue are not available. Methods We report the results of a survey on selected NTDs (schistosomiasis, strongyloidiasis, echinococcosis, Chagas disease, leishmaniasis, cysticercosis, filariasis and scabies) in nine Italian sentinel centres, in order to investigate their occurrence throughout the country and identify which ones are a priority for public health interventions, development of protocols for case management, and training activities. To explore the preparedness of the centres, we investigate the availability of specific diagnostic tools and drugs, needed for the management of the most common NTDs. We also reviewed and summarized the available national policies, recommendations and guidelines on NTDs in Italy. Results Overall, 4123 NTDs cases were diagnosed in nine Italian centres within a 7-year period (2011–2017). Schistosomiasis and strongyloidiasis were the most common NTDs, accounting for about one-third each of all the diagnosed cases, followed by Chagas disease. The number of cases showed a significant trend to increase over time, mainly due to foreign-born subjects. Serology for Schistosoma spp. and Strongyloides stercoralis was available in seven and five centres, respectively. Agar plate stool culture for S. stercoralis was available in three sites. Ivermectin and praziquantel were always available in six centres. Six national policies, recommendations and guidelines documents were available, but for the most part, they are not fully implemented yet. Conclusions This survey showed how some NTDs, such as schistosomiasis and strongyloidiasis, are becoming more common in Italy, due to multiple components. A list of seven key actions was proposed, in order to improve diagnosis, management and control of NTDs in Italy.

scholarly journals Policy Implications for Controlling Communicable Diseases in Indigenous Communities: Case of Strongyloidiasis in Australia

2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Adrian Miller ◽  
Michelle L Smith ◽  
Jenni A Judd ◽  
Rick Speare
Keyword(s):  
Health Promotion ◽  
Policy Development ◽  
Neglected Tropical Diseases ◽  
Indigenous Health ◽  
Indigenous Communities ◽  
Strongyloides Stercoralis ◽  
Institutional Racism ◽  
Policy Implications ◽  
Tropical Diseases ◽  
Prevention Policy

The objective of this paper is to document the knowledge and experiences of healthcare professionals and researchers in Australia about the barriers to controlling Strongyloides stercoralis in Australian Indigenous communities. Qualitative research methods were used to conduct in-depth semi-structured interviews, which were digitally recorded, transcribed, and participant-checked. Data were thematically analysed to identify significant themes. Five major themes were identified:1)    Barriers to health/treatment;2)    Access to healthcare;3)    Policy;4)    Learning opportunity; and5)    Ideas for intervention.The findings suggest that Australian Indigenous communities will continue to suffer increased morbidity and mortality due to a lack of control or prevention of Strongyloides stercoralis. Issues such as institutional racism, improvements to health promotion, education, socioeconomic determinants, and health care system policy and procedures need to be addressed. This study identifies several direct implications for Indigenous health:The need for increased knowledge and understanding of the risks to health for Indigenous community members;The need for prevention policy development for neglected tropical diseases in Indigenous communities;The need for increased knowledge and understanding of the treatment, diagnosis, and healthcare access concerning Strongyloides stercoralis for health professionals and policymakers who work within Indigenous health;The need to raise awareness of systematic institutional racism in the control and prevention of neglected tropical diseases in Indigenous communities; andThe need for a health promotion framework that can provide the basis for multiple-level interventions to control and prevent Strongyloides in Indigenous communities.

THE ROLE OF EBM AND CLINICAL PRACTICE GUIDELINES IN GENERATING RESEARCH AND INTERVENTIONS IN NEGLECTED TROPICAL DISEASES: A RATIONAL MODEL FOR DEVELOPING COUNTRIES

2020 ◽  
Author(s):  
Cristhian David Morales-Plaza
Keyword(s):  
Developing Countries ◽  
Clinical Practice ◽  
Clinical Practice Guidelines ◽  
Practice Guidelines ◽  
Neglected Tropical Diseases ◽  
Tropical Diseases ◽  
Rational Model ◽  
Clinical Practices ◽  
Vulnerable Communities

Guarantee better clinical practices among clinicians who attend NTDs in developing countries as well as provide education in vector control in hotspot vulnerable communities

Heterocycles in the Treatment of Neglected Tropical Diseases

2020 ◽  
Vol 27 ◽  
Author(s):  
Kush K. Maheshwari ◽  
Debasish Bandyopadhyay
Keyword(s):  
Developing Countries ◽  
Heterocyclic Compounds ◽  
Neglected Tropical Diseases ◽  
World Health ◽  
Current Status ◽  
Poor People ◽  
Tropical Diseases ◽  
Concise Review ◽  
The World ◽  
Health Organization

Background: Neglected tropical diseases (NTDs) affect a huge population of the world and majority of the victims belong to the poor community of the developing countries. Until now, the World Health Organization (WHO) has identified 20 tropical diseases as NTDs that must be addressed with high priority. However, many heterocyclic scaffolds have demonstrated potent therapeutic activity against several NTDs. Objective: There are three major objectives: (1) To discuss the causes, symptoms, and current status of all the 20 NTDs; (2) To explore the available heterocyclic drugs, and their mechanism of actions (if known) that are being used to treat NTDs; (3) To develop general awareness on NTDs among the medicinal/health research community and beyond. Methods: The 20 NTDs have been discussed according to their alphabetic orders along with the possible heterocyclic remedies. Current status of treatment with an emphasis on the heterocyclic drugs (commercially available and investigational) has been outlined. In addition, brief discussion of the impacts of NTDs on socio-economic condition is included. Results: NTDs are often difficult to diagnose and the problem is worsened by the unhealthy hygiene, improper awareness, and inadequate healthcare in the developing countries where these diseases primarily affect poor people. The statistics include duration of suffering, numbers affected, and access to healthcare and medication. The mechanism of actions of various heterocyclic drugs, if reported, have been briefly summarized. Conclusion: Scientists and pharmaceutical corporations should allocate more resources to reveal the in-depth mechanism of actions of many heterocyclic drugs that are currently being used for the treatment of NTDs. Analysis of current heterocyclic compounds and development of new medications can help in the fight to reduce/remove the devastating effects of NTDs. An opinion-based concise review has been presented. Based on available literature, this is the first effect to present all the 20 NTDs and related heterocyclic compounds under the same umbrella.

Use of Guanidine Compounds in the Treatment of Neglected Tropical Diseases

2014 ◽  
Vol 18 (20) ◽  
pp. 2572-2602 ◽  
Author(s):  
Rafael Espirito Santo ◽  
Marcella Machado ◽  
Jean Santos ◽  
Eduardo Gonzalez ◽  
Chung Chin
Keyword(s):  
Neglected Tropical Diseases ◽  
Tropical Diseases

The Epitome of Novel Techniques and Targeting Approaches in Drug Delivery for Treating Lymphatic Filariasis

2020 ◽  
Vol 21 (12) ◽  
pp. 1250-1263
Author(s):  
Saurabh Shrivastava ◽  
Anshita Gupta ◽  
Chanchal Deep Kaur
Keyword(s):  
Lymphatic Filariasis ◽  
Neglected Tropical Diseases ◽  
Therapeutic Interventions ◽  
Tropical Diseases ◽  
Human Beings ◽  
Therapeutic Approaches ◽  
Preventive Chemotherapy ◽  
Bioactive Substances ◽  
Lymphatic Diseases ◽  
Life Threatening

Background: Lymphatic filariasis is a pervasive and life-threatening disease for human beings. Currently, 893 million people in 49 countries worldwide affected by lymphatic filariasis as per WHO statistics. The concealed aspects of lymphatic diseases such as delayed disease detection, inappropriate disease imaging, the geographical outbreak of infection, and lack of preventive chemotherapy have brought this epidemic to the edge of Neglected Tropical Diseases. Many medications and natural bioactive substances have seen to promote filaricidal activity against the target parasitic species. However, the majority of failures have occurred in pharmaceutical and pharmacokinetic issues. Objective: The purpose of the study is to focus on the challenges and therapeutic issues in the treatment of filariasis. The review brings novel techniques and therapeutic approaches for combating lymphatic filariasis. It also offers significant developments and opportunities for such therapeutic interventions. Conclusion: Through this review, an attempt has made to critically evaluate the avenues of innovative pharmaceuticals and molecular targeting approaches to bring an integrated solution to combat lymphatic filariasis.

Conclusion

2018 ◽  
Author(s):  
Jacob Stegenga
Keyword(s):  
Open Access ◽  
Data Collection ◽  
Medical Research ◽  
Research Agenda ◽  
Neglected Tropical Diseases ◽  
Trial Data ◽  
Tropical Diseases ◽  
Research Regulation ◽  
Medical Interventions ◽  
Diet And Exercise

The book concludes by articulating what medical nihilism might entail for medical research, regulation, and treatment. There have been many proposed solutions to problems raised in this book, ranging from minor modifications to medical research (like requiring the registration of trials prior to data collection, and open access to trial data), to revolutionary changes (such as the complete socialization of medical research). These proposals for realigning medical research are evaluated, and proposals that are consistent with medical nihilism are articulated. These include stricter standards for detecting benefits and harms of medical interventions, a closer scrutiny of corporate research, and a shift in the research agenda away from barely effective pharmaceuticals toward projects with potential for greater impact, such as research on the importance of diet and exercise, and on neglected tropical diseases.

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