Artemether and imatinib combination therapy against malaria infection

2021 ◽  
Vol 19 (1) ◽  
pp. 139-143
Author(s):  
A.V. Kondrashin ◽  
◽  
E.V. Stepanova ◽  
L.F. Morozova ◽  
V.P. Sergiev ◽  
...  
Keyword(s):  
Combination Therapy ◽  
World Health ◽  
In Vivo Studies ◽  
Telomerase Inhibitors ◽  
Combined Use ◽  
The World ◽  
Oncological Diseases ◽  
Health Organization ◽  
Key Words Malaria

Artemisinin-based combination therapy (ACT) is recommended by the World Health Organization (WHO) as the first and second line of treatment for uncomplicated malaria caused by P. falciparum, as well as for chloroquine-resistant P. vivax malaria. Despite the large number of antimalarial drugs, there is no any ideal drug, since each individual combination of drugs or monotherapy have their own limitations, ranging from their triple (activity) in relation to certain forms of the development of Plasmodium in the human body, side effects, toxicity and resistance. During the course of the study carried out, the most promising compound-candidate was selected – imatinib, which is currently used as targeted therapy for a number of oncological diseases. The objective of this work is to evaluate the efficacy of the combined use of imatinib and artemether in vivo studies on the human malarial model – the rodent malaria parasites Plasmodium berghei. Dut to the optimally selected treatment scheme, it was possible to reduce the dosage of imatinib twice – to 0,25 mg/kg, and that of artemether three times – to 33 mg/kg. The use of this scheme made it possible to considerably reduce the toxic effect of these drugs due to the potentiation of antimalarial effect. Key words: malaria, drug resistance, telomerase inhibitors, imatinib, chemotherapy of malaria

scholarly journals Novel Antiviral Activities of Obatoclax, Emetine, Niclosamide, Brequinar, and Homoharringtonine

2019 ◽  
Author(s):  
Petter I. Andersen ◽  
Klara Krpina ◽  
Aleksandr Ianevski ◽  
Nastassia Shtaida ◽  
Eunji Jo ◽  
...  
Keyword(s):  
Influenza A ◽  
Rift Valley Fever Virus ◽  
Antiviral Agents ◽  
Viral Disease ◽  
World Health ◽  
Valley Fever ◽  
The World ◽  
Health Organization ◽  
Hiv 1

Viruses are the major causes of acute and chronic infectious diseases in the world. According to the World Health Organization, there is an urgent need for better control of viral diseases. Re-purposing existing antiviral agents from one viral disease to another could play a pivotal role in this process. Here we identified novel activities of obatoclax and emetine against herpes simplex virus type 2 (HSV-2), human immunodeficiency virus 1 (HIV-1), echovirus 1 (EV1), human metapneumovirus (HMPV) and Rift Valley fever virus (RVFV) in cell cultures. Moreover, we demonstrated novel activities of emetine against influenza A virus (FluAV), niclosamide against HSV-2, brequinar against HIV-1, and homoharringtonine against EV1. Our findings may expand the spectrum of indications of these safe-in-man agents and reinforce the arsenal of available antiviral therapeutics pending the results of further in vivo tests.

scholarly journals Spinal surgery complications: an unsolved problem—Is the World Health Organization Safety Surgical Checklist an useful tool to reduce them?

2019 ◽  
Vol 29 (5) ◽  
pp. 927-936
Author(s):  
Giovanni Barbanti-Brodano ◽  
Cristiana Griffoni ◽  
Jarkko Halme ◽  
Giuseppe Tedesco ◽  
Silvia Terzi ◽  
...  
Keyword(s):  
World Health Organization ◽  
Spinal Surgery ◽  
World Health ◽  
The World ◽  
Oncological Diseases ◽  
Supplementary Material ◽  
The Mean ◽  
Health Organization ◽  
Surgical Checklist

Abstract Purpose To investigate whether the World Health Organization Safety Surgical Checklist (SSC) is an effective tool to reduce complications in spinal surgery. Methods We retrospectively evaluated the clinical and radiological charts prospectively collected from patients who underwent a spinal surgery procedure from January 2010 to December 2012. The aim of this study was to compare the incidence of complications between two periods, from January to December 2010 (without checklist) and from January 2011 and December 2012 (with checklist), in order to assess the checklist’s effectiveness. Results The sample size was 917 patients with an average of 30-month follow-up. The mean age was 52.88 years. The majority of procedures were performed for oncological diseases (54.4%) and degenerative diseases (39.8%). In total, 159 complications were detected (17.3%). The overall incidence of complications for trauma, infectious pathology, oncology, and degenerative disease was 22.2%, 19.2%, 18.4%, and 15.3%, respectively. No correlation was observed between the type of pathology and the complication incidence. We observed a reduction in the overall incidence of complications following the introduction of the SSC: In 2010 without checklist, the incidence of complications was 24.2%, while in 2011 and 2012, following the checklist introduction, the incidence of complications was 16.7% and 11.7%, respectively (mean 14.2%). Conclusions The SSC seems to be an effective tool to reduce complications in spinal surgery. We propose to extend the use of checklist system also to the preoperative and postoperative phases in order to further reduce the incidence of complications. Graphic abstract These slides can be retrieved under Electronic Supplementary Material.

Influence of the Estrous Cycle on the Action of Oxytocin on Rat Ovarian Contractility in Vivo**Supported in part by the World Health Organization.

1977 ◽  
Vol 28 (2) ◽  
pp. 205-208 ◽  
Author(s):  
Ricardo A. Roca ◽  
Elsa G. Garófalo ◽  
Héctor Píriz ◽  
Idivia Martino ◽  
Gloria Rieppi
Keyword(s):  
World Health Organization ◽  
Estrous Cycle ◽  
World Health ◽  
The World ◽  
Health Organization

scholarly journals Adipotsitokiny v nauchnoy i klinicheskoy praktike

2011 ◽  
Vol 8 (1) ◽  
pp. 32-39 ◽  
Author(s):  
A V Kosygina
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Experimental Studies ◽  
Overweight And Obesity ◽  
Social Adaptation ◽  
World Health ◽  
The World ◽  
Oncological Diseases ◽  
Health Organization

In recent decades, overweight and obesity have become a major problem for most countries. According to the World Health Organization (WHO), more than a billion people worldwide are overweight and more than 300 million are obese. These clinical and experimental studies highlight a clear relationship between obesity and several chronic diseases such as type 2 diabetes mellitus (T2DM), atherosclerosis, coronary heart disease, high risk of oncological diseases, disorders of the reproductive sphere, pathology of the musculoskeletal system, as well as deviations in mental status and processes of social adaptation. Therefore, considerable efforts of modern endocrinology focused on the study of etiopathogenetic aspects that underlie these diseases and identification of possible markers.

Chloroquine-Resistant Plasmodium Falciparum Among Children in Calabar, South Eastern Nigeria

1997 ◽  
Vol 27 (3) ◽  
pp. 146-149 ◽  
Author(s):  
O E Antia-Obong ◽  
A A A Alaribe ◽  
M U Young ◽  
A Bassy ◽  
B V Etim
Keyword(s):  
Plasmodium Falciparum ◽  
Plasmodium Falciparum Malaria ◽  
Chloroquine Resistance ◽  
World Health ◽  
Response To Treatment ◽  
Treatment Groups ◽  
The World ◽  
Health Organization ◽  
The University

Sixty-nine children aged between 6 and 60 months with parasitologically proven Plasmodium falciparum malaria were treated with chloroquine (2.5 mg/kg) in the Children's Emergency Room of the University of Calabar Teaching Hospital (UCTH) in 1993. Thirty subjects (mean age 27.8 months) and 39 (mean age 29.5 months) received chloroquine phosphate suppository (Pharma Deko) and chloroquine sulphate syrup (May & Baker), respectively. The World Health Organization (WHO) 14-day in vivo field test was used in evaluating the response to treatment. In both treatment groups the responses were similar. Overall, parasitological cure occurred in 24 subjects (34.8%) and in the remaining 45 subjects (65.2%) treatment failed (chloroquine resistance). This level of chloroquine resistant Plasmodium falciparum (CRPF) is higher than 53.6% reported in this centre in 1989. Furthermore, in the present study the proportion of RII (46.4%) is significantly higher than 21.4% ( P < 0.02) obtained in 1989. Our findings show a worsening of CRPF in Calabar with RII being the main contributor. This observation indicates the need for continued surveillance of the response of P. falciparum to chloroquine and alternative antimalarials as a means of evolving an effective treatment policy for malaria.

scholarly journals Dietary Anthocyanins and Stroke: A Review of Pharmacokinetic and Pharmacodynamic Studies

Nutrients ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1479 ◽  
Author(s):  
Manolescu ◽  
Oprea ◽  
Mititelu ◽  
Ruta ◽  
Farcasanu
Keyword(s):  
Stroke Prevention ◽  
Mechanisms Of Action ◽  
World Health ◽  
Pharmacokinetic Studies ◽  
Cerebrovascular Accidents ◽  
The Third ◽  
The World ◽  
Health Organization

Cerebrovascular accidents are currently the second major cause of death and the third leading cause of disability in the world, according to the World Health Organization (WHO), which has provided protocols for stroke prevention. Although there is a multitude of studies on the health benefits associated with anthocyanin (ACN) consumption, there is no a rigorous systematization of the data linking dietary ACN with stroke prevention. This review is intended to present data from epidemiological, in vitro, in vivo, and clinical studies dealing with the stroke related to ACN-rich diets or ACN supplements, along with possible mechanisms of action revealed by pharmacokinetic studies, including ACN passage through the blood-brain barrier (BBB).

scholarly journals Thoracic Surgery Practice in Covid-19 Pandemic

2020 ◽  
Author(s):  
Kenan Can Ceylan ◽  
Arkın Acar
Keyword(s):  
Resource Management ◽  
Thoracic Surgery ◽  
World Health Organization ◽  
World Health ◽  
Complication Management ◽  
Critical Importance ◽  
Difficult Situation ◽  
The World ◽  
Oncological Diseases ◽  
Health Organization

Covid-19 disease was declared a pandemic by the World Health Organization in 2020, leaving all hospitals in a difficult situation. In this period, when resource management in hospitals is of critical importance, elective operations in many specialties have been postponed, and there are many opinions about which operations can be performed. Although thoracic surgery is a specialty involved in the complication management of Covid-19 disease, unlike other specialties, it deals with oncological diseases where the timing of the surgery is vital. In this review, how the thoracic surgery practice should be in the Covid-19 pandemic is presented in the light of the literature.

scholarly journals Novel Antiviral Activities of Obatoclax, Emetine, Niclosamide, Brequinar, and Homoharringtonine

Viruses ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 964 ◽  
Author(s):  
Andersen ◽  
Krpina ◽  
Ianevski ◽  
Shtaida ◽  
Jo ◽  
...  
Keyword(s):  
Influenza A ◽  
Rift Valley Fever Virus ◽  
Antiviral Agents ◽  
Viral Disease ◽  
World Health ◽  
Valley Fever ◽  
The World ◽  
Health Organization

Viruses are the major causes of acute and chronic infectious diseases in the world. According to the World Health Organization, there is an urgent need for better control of viral diseases. Repurposing existing antiviral agents from one viral disease to another could play a pivotal role in this process. Here, we identified novel activities of obatoclax and emetine against herpes simplex virus type 2 (HSV-2), echovirus 1 (EV1), human metapneumovirus (HMPV) and Rift Valley fever virus (RVFV) in cell cultures. Moreover, we demonstrated novel activities of emetine against influenza A virus (FLUAV), niclosamide against HSV-2, brequinar against human immunodeficiency virus 1 (HIV-1), and homoharringtonine against EV1. Our findings may expand the spectrum of indications of these safe-in-man agents and reinforce the arsenal of available antiviral therapeutics pending the results of further in vitro and in vivo tests.

scholarly journals A Nature-Inspired Design Yields a New Class of Steroids Against Trypanosomatids

Molecules ◽  
2019 ◽  
Vol 24 (20) ◽  
pp. 3800
Author(s):  
Elena Aguilera ◽  
Cintya Perdomo ◽  
Alejandra Espindola ◽  
Ileana Corvo ◽  
Paula Faral-Tello ◽  
...  
Keyword(s):  
De Novo ◽  
Low Cost ◽  
World Health ◽  
New Class ◽  
The World ◽  
Low Toxicity ◽  
Health Organization ◽  
Toxicity In Vitro

Chagas disease and Leishmaniasis are neglected endemic protozoan diseases recognized as public health problems by the World Health Organization. These diseases affect millions of people around the world however, efficient and low-cost treatments are not available. Different steroid molecules with antimicrobial and antiparasitic activity were isolated from diverse organisms (ticks, plants, fungi). These molecules have complex structures that make de novo synthesis extremely difficult. In this work, we designed new and simpler compounds with antiparasitic potential inspired in natural steroids and synthesized a series of nineteen steroidal arylideneketones and thiazolidenehydrazines. We explored their biological activity against Leishmania infantum, Leishmania amazonensis, and Trypanosoma cruzi in vitro and in vivo. We also assayed their genotoxicity and acute toxicity in vitro and in mice. The best compound, a steroidal thiosemicarbazone compound 8 (ID_1260) was active in vitro (IC50 200 nM) and in vivo (60% infection reduction at 50 mg/kg) in Leishmania and T. cruzi. It also has low toxicity in vitro and in vivo (LD50 >2000 mg/kg) and no genotoxic effects, being a promising compound for anti-trypanosomatid drug development.

scholarly journals Therapeutic Emergence of Rhein as a Potential Anticancer Drug: A Review of Its Molecular Targets and Anticancer Properties

Molecules ◽  
2020 ◽  
Vol 25 (10) ◽  
pp. 2278 ◽  
Author(s):  
Sahu Henamayee ◽  
Kishore Banik ◽  
Bethsebie Lalduhsaki Sailo ◽  
Bano Shabnam ◽  
Choudhary Harsha ◽  
...  
Keyword(s):  
Cost Effective ◽  
World Health ◽  
Polygonum Multiflorum ◽  
Anticancer Properties ◽  
Helminthic Infections ◽  
Toxicological Studies ◽  
The World ◽  
Health Organization

According to the World Health Organization (WHO), cancer is the second-highest cause of mortality in the world, and it kills nearly 9.6 million people annually. Besides the fatality of the disease, poor prognosis, cost of conventional therapies, and associated side-effects add more burden to patients, post-diagnosis. Therefore, the search for alternatives for the treatment of cancer that are safe, multi-targeted, effective, and cost-effective has compelled us to go back to ancient systems of medicine. Natural herbs and plant formulations are laden with a variety of phytochemicals. One such compound is rhein, which is an anthraquinone derived from the roots of Rheum spp. and Polygonum multiflorum. In ethnomedicine, these plants are used for the treatment of inflammation, osteoarthritis, diabetes, and bacterial and helminthic infections. Increasing evidence suggests that this compound can suppress breast cancer, cervical cancer, colon cancer, lung cancer, ovarian cancer, etc. in both in vitro and in vivo settings. Recent studies have reported that this compound modulates different signaling cascades in cancer cells and can prevent angiogenesis and progression of different types of cancers. The present review highlights the cancer-preventing and therapeutic properties of rhein based on the available literature, which will help to extend further research to establish the chemoprotective and therapeutic roles of rhein compared to other conventional drugs. Future pharmacokinetic and toxicological studies could support this compound as an effective anticancer agent.

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