scholarly journals Search for Antiprotozoal Activity in Herbal Medicinal Preparations; New Natural Leads against Neglected Tropical Diseases

Molecules ◽  
2015 ◽  
Vol 20 (8) ◽  
pp. 14118-14138 ◽  
Author(s):  
Núria Llurba-Montesino ◽  
Marcel Kaiser ◽  
Reto Brun ◽  
Thomas Schmidt
2020 ◽  
Vol 26 ◽  
Author(s):  
Evanthia Chazapi ◽  
George E. Magoulas ◽  
Kyriakos C. Prousis ◽  
Theodora Calogeropoulou

Background: Neglected tropical diseases (NTDs) represent a serious problem in a number of countries around the world and especially in Africa and South America, affecting mostly the poor population which has limited access to the healthcare system. The drugs currently used for the treatment of NTDs are dated many decades ago and consequently, present in some cases very low efficacy, high toxicity and development of drug resistance. In the search for more efficient chemotherapeutic agents for NTDs a large number of different compound classes have been synthesized and tested. Among them, ether phospholipids with their prominent member miltefosine, are considered as one of the most promising. Objective: This review summarizes the literature concerning the development of antiparasitic phospholipid derivatives, describing the efforts towards more efficient and less toxic analogues while, providing an overview of the mechanism of action of this compound class against trypanosomatids. Conclusion: Phospholipid analogues are already known for their antiprotozoal activity. Several studies have been conducted in order to synthesize novel derivatives with the aim to improve current treatments such as miltefosine, with promising results. Photolabeling and fluorescent alkyl phospholipid analogues have contributed to the clarification of the mode of action of this drug family.


2020 ◽  
Author(s):  
Cristhian David Morales-Plaza

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


2020 ◽  
Vol 27 ◽  
Author(s):  
Kush K. Maheshwari ◽  
Debasish Bandyopadhyay

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.


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

2020 ◽  
Vol 21 (12) ◽  
pp. 1250-1263
Author(s):  
Saurabh Shrivastava ◽  
Anshita Gupta ◽  
Chanchal Deep Kaur

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.


Author(s):  
Jacob Stegenga

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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