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Clinical, Journal: Pediatric Cutaneous Leishmaniasis: A Clinico-Epidemiological Study from North India. (Pubmed Central) - Dec 24, 2021 Intralesional or systemic sodium stibogluconate (SSG) was the treatment modality used for the management of patients...CL is an emerging health problem in the pediatric population of Jammu and Kashmir. Awareness among pediatric health workers regarding this disease and recognition among the differential diagnosis of ulcerated papules or plaques in the pediatric population is imperative.
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Journal, PD(L)-1 Biomarker, IO biomarker: Early reduction in PD-L1 expression predicts faster treatment response in human cutaneous leishmaniasis. (Pubmed Central) - Dec 21, 2021 Pentavalent antimonials (e.g., sodium stibogluconate [SSG]) remain first-line drugs for CL with no new effective treatments emerging...Our data support a model whereby the initial anti-leishmanial activity of antimonial drugs alleviates checkpoint inhibition on T cells, facilitating immune-drug synergism and clinical cure. Our findings demonstrate that PD-L1 expression can be used as predictor of rapidity of clinical response to SSG treatment in Sri Lanka and support further evaluation of PD-L1 as a host directed therapy target in leishmaniasis.
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Journal: GC-MS screening and antiparasitic action of Putranjiva roxburghii leaves against sensitive and resistant strains of Leishmania donovani. (Pubmed Central) - Nov 21, 2021 It was found to be safer in cytotoxicity assay and generated ROS mediated oxidative stress in the parasitic cells which was evidenced by the increased and decreased levels of superoxide radicals, lipid peroxidation products, lipid bodies and levels of thiol, plasma membrane integrity respectively. Therefore, our results support the importance of P. roxburghii as a medicinal plant against L. donovani and showed potential for exploration as an antileishmanial agent.
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Clinical, Journal: Genome wide comparison of Leishmania donovani strains from Indian visceral leishmaniasis and para-Kala azar dermal leishmaniasis patients. (Pubmed Central) - Oct 10, 2021 In the present study, whole genome sequencing is performed with sodium stibogluconate (SSG) sensitive and resistant L. donovani strains along with SSG sensitive para-KDL strains, derived from the clinical isolates of Indian patients to identify the genomic variations among them...Such distinguishing genomic changes among the para-KDL strains could be significant for the parasites to become dermatotropic. Overall, the study reveals a possible correlation of the development of SSG resistance and the transition towards the manifestation of PKDL with chromosome aneuploidy and non-synonymous genetic variations in the coding sequences of the L. donovani strains from Indian patients.
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Clinical, Journal: Miltefosine for the treatment of cutaneous leishmaniasis-A pilot study from Ethiopia. (Pubmed Central) - Sep 15, 2021 P=N/A Overall, the study reveals a possible correlation of the development of SSG resistance and the transition towards the manifestation of PKDL with chromosome aneuploidy and non-synonymous genetic variations in the coding sequences of the L. donovani strains from Indian patients. Based on miltefosine's good initial response, tolerable side-effects, tablet-form, we propose to include miltefosine for future clinical trials using extended treatment schedules, combination therapy, or targeting specific subgroups.
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Clinical, Journal: Disseminated Cutaneous Leishmaniasis in a Pediatric Patient from Peru. (Pubmed Central) - Aug 13, 2021 These findings suggest differences in disease severity perception by patients and physicians. Disseminated cutaneous leishmaniasis is a clinical form that is described with increasing frequency and should be recognized and treated appropriately, mainly in the pediatric population, avoiding complications and sequelae.
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Journal: Identification of potential anti-leishmanial agents using computational investigation and biological evaluation against Trypanothione reductase. (Pubmed Central) - Jun 30, 2021 Some of the drugs previously reported against the disease include sodium stibogluconate, miltefosine and amphotericin B. However, due to the resistance and toxicity problem associated with these molecules, there is an urgent need to develop new drugs against L. donovani...Enzyme inhibition assay resulted in shortlisting of four compounds that were found to inhibit Trypanothione reductase of Leishmania Donovani. Subsequently, the anti-leishmanial screening highlighted one compound as the potential anti-leishmanial agent, with IC value of 15.2µM, that can be further optimised with medicinal chemistry efforts to improve its activity.
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Journal: Leishmaniasis in Norway. (Pubmed Central) - Jun 16, 2021 The patients were diagnosed late in the disease course, presumably because the disease is rare and not well known in Norway. Cutaneous leishmaniasis was diagnosed with PCR, but none of the patients received local treatment as the first-line choice, as recommended in suitable cases, presumably because the drugs are not readily available in Norway and many clinicians are unfamiliar with the route of administration with local infiltration.
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Trial completion, Head-to-Head: Miltefosine/Paromomycin Phase III Trial for Treatment of Primary Visceral Leishmaniasis (VL) Patients in Eastern Africa (clinicaltrials.gov) - Jun 11, 2021 P3, N=439, Completed, Cutaneous leishmaniasis was diagnosed with PCR, but none of the patients received local treatment as the first-line choice, as recommended in suitable cases, presumably because the drugs are not readily available in Norway and many clinicians are unfamiliar with the route of administration with local infiltration. Active, not recruiting --> Completed
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Clinical, Retrospective data, Review, Journal: Clinical and epidemiological review of tegumentary leishmaniasis in a central region of Peru (Pubmed Central) - May 22, 2021 The eco-environmental conditions of this area of Peru have allowed the establishment of tegumentary leishmaniasis; showing trends similar to world literature. However, more research is needed to explain the epidemiological behavior of this disease that allows the creation of epidemiological prediction models for timely and adequate control.
- |||||||||| Lenocta (sodium stibogluconate) / VioQuest, AmBisome (amphotericin b liposome) / Gilead, Grupo Biotoscana, Sumitomo Dainippon, Astellas
Clinical, Review, Journal: Visceral leishmaniasis in Saudi Arabia: from hundreds of cases to zero. (Pubmed Central) - Mar 4, 2021 After reaching a zero case in 2019, the Ministry of Health (MoH) has a new commitment and facing a great challenge which are maintenance of current situation and elimination of VL. Through the support of stakeholders, encouragement of community participation, preparedness and readiness of leishmaniasis personnel, the new mission of the NLCP now is elimination of the scourge of VL from the country.
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Enrollment open: Documentation of Patient Outcomes for SSG/Allopurinol Combination Treatment in Ethiopia (clinicaltrials.gov) - Mar 3, 2021 P=N/A, N=117, Recruiting, Through the support of stakeholders, encouragement of community participation, preparedness and readiness of leishmaniasis personnel, the new mission of the NLCP now is elimination of the scourge of VL from the country. Not yet recruiting --> Recruiting
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Journal: Identification of Phenylphthalazinones as a New Class of Leishmania infantum Inhibitors. (Pubmed Central) - Jan 23, 2021 Current treatments often rely on harsh regimes of pentavalent antimonials such as sodium stibogluconate, while more recent drugs suffer other shortcomings such as low stability and rapid emergence of treatment failure, amongst others...Replacement of the unsubstituted 2,3-pyrazole with 1,2,3-triazoles led to compounds with lower anti-leishmanial activity. The current scaffold is a valuable new starting point for optimization towards novel anti-leishmanial drugs.
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Enrollment closed, Trial completion date, Trial primary completion date, Head-to-Head: Miltefosine/Paromomycin Phase III Trial for Treatment of Primary Visceral Leishmaniasis (VL) Patients in Eastern Africa (clinicaltrials.gov) - Jul 21, 2020 P3, N=439, Active, not recruiting, The moment he became negative of kala-azar, he fled away. Recruiting --> Active, not recruiting | Trial completion date: Nov 2019 --> Dec 2020 | Trial primary completion date: Nov 2019 --> Dec 2020
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[VIRTUAL] Treatment-refractory cutaneous leishmaniasis in an 8-year-old migrant from central Afghanistan () - Jun 20, 2020 - Abstract #AADVMX2020AAD-VMX_231; In Afghanistan, he was diagnosed with cutaneous leishmaniasis (CL) and had no improvement after intralesional meglumine antimoniate and intramuscular sodium stibogluconate...Early diagnosis and treatment is vital to minimize disfigurement. Given international large-scale migrations in recent years, it is critical to maintain awareness of cutaneous manifestations of infectious diseases endemic to other global regions.
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Clinical, Journal: Chemogenomic profiling of anti-leishmanial efficacy and resistance in the related kinetoplastid parasite Trypanosoma brucei. (Pubmed Central) - Jun 10, 2020 Forward genetic approaches have revolutionized our understanding of drug mode of action in the related kinetoplastid parasite Trypanosoma brucei Therefore, we screened our genome-scale T. brucei RNA interference (RNAi) library against the current antileishmanial drugs sodium stibogluconate (antimonial), paromomycin, miltefosine, and amphotericin B. Identification of T. brucei orthologues of the known Leishmania antimonial and miltefosine plasma membrane transporters effectively validated our approach, while a cohort of 42 novel drug efficacy determinants provides new insights and serves as a resource...Finally, multiple phospholipid-transporting flippases, including the T. brucei orthologue of the Leishmania miltefosine transporter, a putative β-subunit/CDC50 co-factor, and additional membrane-associated hits, affect amphotericin-B efficacy, providing new insights into mechanisms of drug uptake and action. The findings from this orthology-based chemogenomic profiling approach substantially advance our understanding of anti-leishmanial drug action and potential resistance mechanisms, and should facilitate the development of improved therapies, as well as surveillance for drug-resistant parasites.
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Journal: Infectivity and Drug Susceptibility Profiling of Different Leishmania-Host Cell Combinations. (Pubmed Central) - May 24, 2020 In the drug susceptibility test, miltefosine and sodium stibogluconate (SSG) showed varying ranges of activity with 14 and >10-fold differences in susceptibility, depending on the host-parasite pairs, indicating the importance of assay conditions for evaluating antileishmanial activity. Overall, our results suggest that combinations of Leishmania species, infection forms, and host cells must be carefully optimized to evaluate the activity of potential therapeutic compounds against Leishmania.
- |||||||||| Review, Journal: Important roles of Protein Tyrosine Phosphatase PTPN12 in Tumor Progression. (Pubmed Central) - Mar 24, 2020
According to its newly identified roles and functions, PTPN12 is considered a promising therapeutic target against critical diseases, including cancer, diabetes, metabolic disease and autoimmune diseases. In this review, we provide an overview of PTPs and discuss the critical roles of PTPN12/PTP-PEST in tumor progression.
- |||||||||| Lenocta (sodium stibogluconate) / VioQuest, AmBisome (amphotericin b liposome) / Gilead, Grupo Biotoscana, Sumitomo Dainippon
Clinical, Journal: Epidemiology and Spatiotemporal Analysis of Visceral Leishmaniasis in Palestine from 1990 to 2017. (Pubmed Central) - Mar 24, 2020 Pentavalent antimonial sodium stibogluconate continues to be the first line treatment and physicians are recommended to consider liposomal Amphotericin B (AmBisome) for refractory patients only. Geographical, spatiotemporal and seasonal trends of VL were identified.
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