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helminthic therapy

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https://www.readbyqxmd.com/read/29775454/in-vivo-and-in-vitro-studies-of-cry5b-and-nicotinic-acetylcholine-receptor-agonist-anthelmintics-reveal-a-powerful-and-unique-combination-therapy-against-intestinal-nematode-parasites
#1
Yan Hu, Melanie Miller, Bo Zhang, Thanh-Thanh Nguyen, Martin K Nielsen, Raffi V Aroian
BACKGROUND: The soil-transmitted nematodes (STNs) or helminths (hookworms, whipworms, large roundworms) infect the intestines of ~1.5 billion of the poorest peoples and are leading causes of morbidity worldwide. Only one class of anthelmintic or anti-nematode drugs, the benzimidazoles, is currently used in mass drug administrations, which is a dangerous situation. New anti-nematode drugs are urgently needed. Bacillus thuringiensis crystal protein Cry5B is a powerful, promising new candidate...
May 18, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29772478/bacillus-thuringiensis-cry5b-protein-as-a-new-pan-hookworm-cure
#2
Yan Hu, Thanh-Thanh Nguyen, Alice C Y Lee, Joseph F Urban, Melanie M Miller, Bin Zhan, David J Koch, Jason B Noon, Ambily Abraham, Ricardo Toshio Fujiwara, Dwight D Bowman, Gary R Ostroff, Raffi V Aroian
Hookworms are intestinal nematode parasites that infect nearly half a billion people and are globally one of the most important contributors to iron-deficiency anemia. These parasites have significant impacts in developing children, pregnant women and working adults. Of all the soil-transmitted helminths or nematodes (STNs), hookworms are by far the most important, with disease burdens conservatively estimated at four million DALYs (Disability-Adjusted Life Years) and with productivity losses of up to US$139 billion annually...
May 4, 2018: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/29746470/new-insights-into-leishmaniasis-in-the-immunosuppressed
#3
REVIEW
Hannah Akuffo, Carlos Costa, Johan van Griensven, Sakib Burza, Javier Moreno, Mercè Herrero
Immunosuppression contributes significantly to the caseload of visceral leishmaniasis (VL). HIV coinfection, solid organ transplantation, malnutrition, and helminth infections are the most important immunosuppression-related factors. This review briefly describes the challenges of these associations. East Africa and the Indian subcontinent are the places where HIV imposes the highest burden in VL. In the highlands of Northern Ethiopia, migrant rural workers are at a greater risk of coinfection and malnutrition, while in India, HIV reduces the sustainability of a successful elimination programme...
May 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29743881/host-defense-versus-immunosuppression-unisexual-infection-with-male-or-female-schistosoma-mansoni-differentially-impacts-the-immune-response-against-invading-cercariae
#4
Martina Sombetzki, Nicole Koslowski, Anne Rabes, Sonja Seneberg, Franziska Winkelmann, Carlos Fritzsche, Micha Loebermann, Emil C Reisinger
Infection with the intravascular diecious trematode Schistosoma spp . remains a serious tropical disease and public health problem in the developing world, affecting over 258 million people worldwide. During chronic Schistosoma mansoni infection, complex immune responses to tissue-entrapped parasite eggs provoke granulomatous inflammation which leads to serious damage of the liver and intestine. The suppression of protective host immune mechanisms by helminths promotes parasite survival and benefits the host by reducing tissue damage...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29721656/effects-of-miconazole-clotrimazole-and-praziquantel-combinations-against-the-liver-fluke-opisthorchis-felineus-in-vivo-and-in-vitro
#5
Maria Y Pakharukova, Yuri V Pakharukov, Viatcheslav A Mordvinov
The liver fluke Opisthorchis felineus (Rivolta, 1884) is the causative agent of opisthorchiasis felinea in Eurasia. Opisthorchiasis is a serious human and fish-eating animal's disease affecting bile ducts and the gall bladder. Currently, the main drug for specific therapy of opisthorchiasis is praziquantel. We have previously shown that azole inhibitors of O. felineus cytochrome P450 significantly reduced survival of the worms in vitro. Here, we studied in vitro anthelmintic effects of drug combinations involving azole substances approved by the US Food and Drug Administration together with praziquantel against adult or juvenile O...
May 2, 2018: Parasitology Research
https://www.readbyqxmd.com/read/29698559/tuftsin-phosphorylcholine-tpc-equally-effective-to-methylprednisolone-in-ameliorating-lupus-nephritis-in-a-mice-model
#6
Asaf Shemer, Shay Kivity, Ora Shovman, Ori Perry, Abdulla Watad, Dana Ben-Ami Shor, Alex Volkov, Iris Barshack, Nicola L Bragazzi, Alexander Krule, Mati Fridkin, Howard Amital, Miri Blank, Yehuda Shoenfeld
BACKGROUND: The role of helminth treatment in autoimmune diseases is constantly growing. Systemic lupus erythematosus (SLE) is a multi-system autoimmune disease with challenging treatment options. Tuftsin phosphorylcholine (TPC) is a novel helminth-based compound that modulates the host immune network. OBJECTIVES: This study was conducted to evaluate the potential value of TPC in ameliorating lupus nephritis in a murine model and specifically to compare the efficacy of TPC to the existing first-line therapy for SLE: corticosteroids (methylprednisolone)...
April 26, 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29673735/efficacy-and-tolerability-of-triple-drug-therapy-with-albendazole-pyrantel-pamoate-and-oxantel-pamoate-compared-with-albendazole-plus-oxantel-pamoate-pyrantel-pamoate-plus-oxantel-pamoate-and-mebendazole-plus-pyrantel-pamoate-and-oxantel-pamoate-against-hookworm
#7
Wendelin Moser, Somphou Sayasone, Syda Xayavong, Bangon Bounheuang, Maxim Puchkov, Jörg Huwyler, Jan Hattendorf, Jennifer Keiser
BACKGROUND: Albendazole and mebendazole are commonly used to control hookworm, but have shortcomings in their efficacy profiles. We assessed whether triple drug therapy (TDT) with albendazole, pyrantel pamoate, and oxantel pamoate was more effective than the co-administration of two drugs for the treatment of hookworm infections. METHODS: A randomised, single-blind trial was done from Sept 27 until Nov 17, 2017, in Laos. Children (6-15 years) from six schools were invited to participate...
April 16, 2018: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/29659015/possible-repurposing-of-pyrvinium-pamoate-for-the-treatment-of-mesothelioma-a-pre-clinical-assessment
#8
Marcella Barbarino, Daniele Cesari, Riccardo Intruglio, Paola Indovina, Asadoor Namagerdi, Franca Maria Bertolino, Maria Bottaro, Delaram Rahamani, Cristiana Bellan, Antonio Giordano
Malignant mesothelioma (MM) is a very aggressive asbestos-related cancer, whose incidence is increasing worldwide. Unfortunately, no effective therapies are currently available and the prognosis is extremely poor. Recently, the anti-helminthic drug pyrvinium pamoate has attracted a strong interest for its anti-cancer activity, which has been demonstrated in many cancer models. Considering the previously established inhibitory effect of pyrvinium pamoate on the Wnt/β-catenin pathway and given the important role of this pathway in MM, we investigated the potential anti-tumor activity of this drug in MM cell lines...
April 16, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29479356/elevated-systemic-levels-of-eosinophil-neutrophil-and-mast-cell-granular-proteins-in-strongyloides-stercoralis-infection-that-diminish-following-treatment
#9
Anuradha Rajamanickam, Saravanan Munisankar, Yukthi Bhootra, Chandra Kumar Dolla, Thomas B Nutman, Subash Babu
Infection with the helminth parasite Strongyloides stercoralis ( Ss ) is commonly clinically asymptomatic that is often accompanied by peripheral eosinophilia. Granulocytes are activated during helminth infection and can act as immune effector cells. Plasma levels of eosinophil and neutrophil granular proteins convey an indirect measure of granulocyte degranulation and are prominently augmented in numerous helminth-infected patients. In this study, we sought to examine the levels of eosinophil, neutrophil, and mast cell activation-associated granule proteins in asymptomatic Ss infection and to understand their kinetics following anthelmintic therapy...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29453411/the-impact-of-a-helminth-modified-microbiome-on-host-immunity
#10
REVIEW
Tara P Brosschot, Lisa A Reynolds
Intestinal helminths have well-characterized modulatory effects on mammalian immune pathways. Ongoing helminth infection has been associated with both the suppression of allergies and an altered susceptibility to microbial infections. Enteric helminths share a niche with the intestinal microbiota, and the presence of helminths alters the microbiota composition and the metabolic signature of the host. Recent studies have demonstrated that the helminth-modified intestinal microbiome has the capacity to modify host immune responses even in the absence of live helminth infection...
February 16, 2018: Mucosal Immunology
https://www.readbyqxmd.com/read/29420245/imported-gnathostomiasis-manifesting-as-cutaneous-larva-migrans-and-l%C3%A3-ffler-s-syndrome
#11
William L Hamilton, Daniel Agranoff
Here, we report an unusual case of invasive gnathostomiasis in a returning traveller, with a shifting pattern of relapsing cutaneous disease. The previously fit and well 32-year-old man first presented with serpiginous, pruriginous erythematous tracks characteristic of cutaneous larva migrans shortly after returning from South-East Asia. He was systemically well with no other symptoms. After ivermectin therapy, he re-presented with respiratory symptoms, peripheral eosinophilia and transient pulmonary infiltrates; the classic triad of Löffler's syndrome associated with invasive helminth infection...
February 2, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29402395/intestinal-worms-eating-neuropsychiatric-disorders-apparently-so
#12
Henry H Kou, William Parker
A number of factors in Western society, including inflammatory diets, sedentary lifestyles, vitamin D deficiency and chronic psychological stress, are known to induce inflammation and to be associated with neuropsychiatric disorders. One factor that is emerging as a potential inflammation inducing factor is biota depletion, or loss of biodiversity from the ecosystem of the human body as a result of industrialization. Originally known as the "hygiene hypothesis", biota alteration theory describes the effects of biota alteration on the human immune system...
February 2, 2018: Brain Research
https://www.readbyqxmd.com/read/29363377/liver-transplantation-for-hepatic-alveolar-echinococcosis-literature-review-and-three-new-cases
#13
Mohsen Aliakbarian, Fariba Tohidinezhad, Saeid Eslami, Kambiz Akhavan-Rezayat
BACKGROUND: Echinococcosis is a helminthic infection caused by ingestion of the eggs of the parasitic metacestode of one of four members of the Echinococcus genus. Among them, hepatic alveolar echinococcosis (HAE) mimics slow growing liver tumour with subsequent invasion to liver tissues and metastatic dissemination. Liver transplantation (LT) remains as the only treatment option when the lesions exceed the resectability limits. We described the first three cases of HAE who underwent orthotopic LT in Iran...
January 24, 2018: Infectious Diseases
https://www.readbyqxmd.com/read/29351392/young-mice-expel-the-tapeworm-hymenolepis-diminuta-and-are-protected-from-colitis-by-triggering-a-memory-response-with-worm-antigen
#14
Toshio Arai, Fernando Lopes, Adam Shute, Arthur Wang, Derek M McKay
Infection with helminth parasites reduces the severity of concomitant inflammatory disease in adult mice. There is an alarming increase of inflammatory bowel disease (IBD) in children. It is important to determine whether helminth therapy would be of value in pediatric IBD and whether triggering immunological memory to the worm would be anticolitic. Three-week-old (young) and eight-week-old (adult) Balb/c mice were infected with H. diminuta, and infectivity and T helper 2 (Th2) immunity were assessed. Other mice received H...
April 1, 2018: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29251334/niclosamide-acts-as-a-new-inhibitor-of-vasculogenic-mimicry-in-oral-cancer-through-upregulation-of-mir-124-and-downregulation-of-stat3
#15
Xiaoxu Li, Zhicheng Yang, Zewen Han, Yanhui Wen, Zeyun Ma, Yixiang Wang
Tumors require nutrients and oxygen for growth and metastasis. Vasculogenic mimicry (VM) has been found as a new manner of blood supply, which is characterized as the formation of tumor cell-lined vessels instead of endothelial vessels. This is why angiogenesis agents targeted to endothelial cells show a limited efficacy. Up to this point, there is no effective drug reported for inhibiting VM formation. Niclosamide is an oral anti-helminthic drug used to treat human tapeworms. Recent studies have indicated that niclosamide has broad applications for cancer and other diseases...
February 2018: Oncology Reports
https://www.readbyqxmd.com/read/29173361/eosinophilic-myocarditis
#16
REVIEW
Christopher C Cheung, Maggie Constantine, Amir Ahmadi, Carolyn Shiau, Luke Y C Chen
Persistent eosinophilia can cause cardiac tissue damage, typically in the form of eosinophilic myocarditis, whether the underlying cause is reactive, a clonal myeloid disorder, or idiopathic hypereosinophilic syndrome (HES). Eosinophilic myocarditis ranges from mild localized disease to multifocal widespread infiltrates associated with myocardial necrosis, thrombotic complications and endomyocardial fibrosis. Systemic treatment varies widely depending on the underlying cause, so thorough investigation and precise diagnosis are essential...
November 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/29150304/are-the-estrogenic-hormonal-effects-of-environmental-toxins-affecting-small-intestinal-bacterial-and-microfilaria-overgrowth
#17
Edward Lichten
The important role of microfilaria (worms) in human and animal disease remains an area of key disagreement between the naturopathic and allopathic physicians. While microfilaria infections are rampart in undeveloped countries, they rarely rise to identification as a cause of disease in Western countries. New research studies in the diagnosis and treatment of SIBO (Small Intestinal Bacterial Overgrowth) and (IBD) Inflammatory Bowel Diseases of ulcerative colitis, Crohn's Disease and microcytic colitis may make both sides equally correct...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29108604/global-issues-in-allergy-and-immunology-parasitic-infections-and-allergy
#18
REVIEW
Alvaro A Cruz, Philip J Cooper, Camila A Figueiredo, Neuza M Alcantara-Neves, Laura C Rodrigues, Mauricio L Barreto
Allergic diseases are on the increase globally in parallel with a decrease in parasitic infection. The inverse association between parasitic infections and allergy at an ecological level suggests a causal association. Studies in human subjects have generated a large knowledge base on the complexity of the interrelationship between parasitic infection and allergy. There is evidence for causal links, but the data from animal models are the most compelling: despite the strong type 2 immune responses they induce, helminth infections can suppress allergy through regulatory pathways...
November 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29068485/is-the-hygiene-hypothesis-relevant-for-the-risk-of-multiple-sclerosis
#19
REVIEW
M Wendel-Haga, E G Celius
The hygiene hypothesis, suggesting that low exposure to pathogens early in life can increase the risk for immune-mediated diseases, has been proposed as an explanation for the increase in incidence of allergy and autoimmune diseases in industrialized countries during the last decades. Several aspects of the hygiene hypothesis have been related to MS. Already in 1966, the risk of MS was suggested to be higher in individuals with high hygienic standard during childhood. Further, an episode of infectious mononucleosis is an independent risk factor for MS and can be regarded as an indicator of low exposure to pathogens early in life, as infection with Epstein-Barr virus often is asymptomatic when it occurs in young children...
November 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/29064448/production-and-use-of-hymenolepis-diminuta-cysticercoids-as-anti-inflammatory-therapeutics
#20
Kendra Smyth, Claire Morton, Amanda Mathew, Sahil Karuturi, Cliff Haley, Min Zhang, Zoie E Holzknecht, Chelsea Swanson, Shu S Lin, William Parker
Helminthic therapy has shown considerable promise as a means of alleviating some inflammatory diseases that have proven resistant to pharmaceutical intervention. However, research in the field has been limited by a lack of availability to clinician scientists of a helminth that is relatively benign, non-communicable, affordable, and effectively treats disease. Previous socio-medical studies have found that some individuals self-treating with helminths to alleviate various diseases are using the rat tapeworm (cysticercoid developmental stage of Hymenolepis diminuta ; HDC)...
October 24, 2017: Journal of Clinical Medicine
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