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https://www.readbyqxmd.com/read/29772736/exploring-the-effect-of-phage-therapy-in-preventing-vibrio-anguillarum-infections-in-cod-and-turbot-larvae
#1
Nanna Rørbo, Anita Rønneseth, Panos G Kalatzis, Bastian Barker Rasmussen, Kirsten Engell-Sørensen, Hans Petter Kleppen, Heidrun Inger Wergeland, Lone Gram, Mathias Middelboe
The aquaculture industry is suffering from losses associated with bacterial infections by opportunistic pathogens. Vibrio anguillarum is one of the most important pathogens, causing vibriosis in fish and shellfish cultures leading to high mortalities and economic losses. Bacterial resistance to antibiotics and inefficient vaccination at the larval stage of fish emphasizes the need for novel approaches, and phage therapy for controlling Vibrio pathogens has gained interest in the past few years. In this study, we examined the potential of the broad-host-range phage KVP40 to control four different V...
May 16, 2018: Antibiotics
https://www.readbyqxmd.com/read/29723377/gnathostomiasis-an-emerging-infectious-disease-relevant-to-all-dermatologists
#2
Francisco Bravo, Bernardo Gontijo
Gnathostomiasis is a parasitic infection caused by the third larval stage of nematodes of the genus Gnathostoma. The disease is endemic in some countries around the world. In the American continent, the majority of cases is concentrated in Mexico, Ecuador, and Peru. However, due to increasing traveling either at the intercontinental or intracontinental level, the disease is seen each time more frequently in tourists. Furthermore, countries, such as Brazil, that have never been considered endemic are reporting autochthonous cases...
March 2018: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/29690874/optimal-control-of-malaria-combining-vector-interventions-and-drug-therapies
#3
Doran Khamis, Claire El Mouden, Klodeta Kura, Michael B Bonsall
BACKGROUND: The sterile insect technique and transgenic equivalents are considered promising tools for controlling vector-borne disease in an age of increasing insecticide and drug-resistance. Combining vector interventions with artemisinin-based therapies may achieve the twin goals of suppressing malaria endemicity while managing artemisinin resistance. While the cost-effectiveness of these controls has been investigated independently, their combined usage has not been dynamically optimized in response to ecological and epidemiological processes...
April 24, 2018: Malaria Journal
https://www.readbyqxmd.com/read/29677189/progress-in-the-pharmacological-treatment-of-human-cystic-and-alveolar-echinococcosis-compounds-and-therapeutic-targets
#4
Mar Siles-Lucas, Adriano Casulli, Roberto Cirilli, David Carmena
Human cystic and alveolar echinococcosis are helmintic zoonotic diseases caused by infections with the larval stages of the cestode parasites Echinococcus granulosus and E. multilocularis, respectively. Both diseases are progressive and chronic, and often fatal if left unattended for E. multilocularis. As a treatment approach, chemotherapy against these orphan and neglected diseases has been available for more than 40 years. However, drug options were limited to the benzimidazoles albendazole and mebendazole, the only chemical compounds currently licensed for treatment in humans...
April 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29597012/differential-expression-of-gonadotropin-and-estrogen-receptors-and-oocyte-cytology-during-follicular-maturation-associated-with-egg-viability-in-european-eel-anguilla-anguilla
#5
Filipa F G da Silva, Helge Tveiten, Gersende Maugars, Anne-Gaëlle Lafont, Sylvie Dufour, Josianne G Støttrup, Elin Kjørsvik, Jonna Tomkiewicz
In captivity, oogenesis and ovarian follicle maturation in European eel can be induced experimentally using hormonal therapy. The follicle's ability to respond effectively to the induction of maturation and ovulation, resulting in viable eggs, depends on the oocyte stage at the time of induction. We hypothesized that variation in the expression of key hormone receptors in the ovary and size of oocyte lipid droplets are associated with changes in oocyte stage. Thus, we induced ovarian follicle maturation using a priming dose of fish pituitary extract followed by an administration of 17α, 20β-dihydroxy-4-pregnen-3-one (DHP)...
March 26, 2018: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/29417472/gastrodin-suppresses-pentylenetetrazole-induced-seizures-progression-by-modulating-oxidative-stress-in-zebrafish
#6
Meng Jin, Qiuxia He, Shanshan Zhang, Yixuan Cui, Liwen Han, Kechun Liu
Pentylenetetrazole (PTZ)-induced seizures in Zebrafish models are now widely accepted for investigating human disease epilepsy. In epilepsy, the generation of oxidative stress contributes to the brain injury. Although Gastrodin (GAS) has been reported to have anticonvulsant activities, its effects on zebrafish seizure models and the underlying mechanism remain unclear. In this study, we evaluated the effects of GAS pretreatment on PTZ-induced seizures in zebrafish larvae and investigated the underlying mechanism related to its anti-oxidative defense...
April 2018: Neurochemical Research
https://www.readbyqxmd.com/read/29402399/tick-borne-illness-lyme-disease
#7
REVIEW
Larry M Bush, Maria T Vazquez-Pertejo
Lyme disease is the most commonly reported tick-borneillness in the United States. Thecausative spirochete, Borrelia burgdorferi is transmitted by 4 species of Ixodes tick species. Over 90% of US cases occur in northeasternstates from Maine to Virginia, and in Wisconsin, Minnesota, and Michigan. Infection also takes place in northern California and Oregon. Lyme borreliosis is also diagnosed in parts of Europe, China, and Japan. The white-footed mouse is the primary animal reservoir for B. burgdorferi in the U...
February 2, 2018: Disease-a-month: DM
https://www.readbyqxmd.com/read/29383470/purification-of-virus-like-particles-vlps-expressed-in-the-silkworm-bombyx-mori
#8
REVIEW
Robert Minkner, Enoch Y Park
Virus-like particles (VLPs) are a promising and developing option for vaccination and gene therapy. They are also interesting as shuttles for drug targeting. Currently, several different gene expression systems are available, among which the silkworm expression system is known for its mass production capacity. However, cost-effective purification with high purity of the target protein is a particular bottleneck for this system. The present review evaluates the advances in the purification of VLPs, especially from silkworm larval hemolymph...
April 2018: Biotechnology Letters
https://www.readbyqxmd.com/read/29324424/larval-therapy-for-chronic-cutaneous-ulcers-historical-review-and-future-perspectives
#9
Edoardo Raposio, Sara Bortolini, Lara Maistrello, Donato A Grasso
Cutaneous ulcers tend to become chronic and have a profound impact on quality of life. These wounds may become infected and lead to greater morbidity and even mortality. In the past, larvae (ie, maggots) of certain common flies (Lucilia sericata and Lucilia cuprina) were considered useful in ulcer management because they only remove necrotic tissue while promoting healthy tissue in the wound bed, thus helping wounds heal faster. Recently, maggots from several other fly species (Calliphora vicina, Calliphora vomitoria, Phormia regina, Chrysomya albiceps, Sarcophaga carnaria, and Hermetia illucens) have been shown in vitro to possess characteristics (ie, debridement efficacy and putative antimicrobial potentialities) that make them suitable candidates for possible use in clinical practice...
December 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/29317220/acamprosate-rescues-neuronal-defects-in-the-drosophila-model-of-fragile-x-syndrome
#10
Russell L Hutson, Rachel L Thompson, Andrew P Bantel, Charles R Tessier
AIMS: Several off-label studies have shown that acamprosate can provide some clinical benefits in youth with Fragile X Syndrome (FXS), an autism spectrum disorder caused by loss of function of the highly conserved FMR1 gene. This study investigated the ability of acamprosate to rescue cellular, molecular and behavioral defects in the Drosophila model of FXS. MAIN METHODS: A high (100μM) and low (10μM) dose of acamprosate was fed to Drosophila FXS (dfmr1 null) or genetic control (w1118 ) larvae and then analyzed in multiple paradigms...
February 15, 2018: Life Sciences
https://www.readbyqxmd.com/read/29298700/evidence-for-multiple-insecticide-resistance-in-urban-aedes-albopictus-populations-in-southern-china
#11
Yiji Li, Jiabao Xu, Daibin Zhong, Hong Zhang, Wenqiang Yang, Guofa Zhou, Xinghua Su, Yang Wu, Kun Wu, Songwu Cai, Guiyun Yan, Xiao-Guang Chen
BACKGROUND: Aedes albopictus (Skuse) is an invasive mosquito that has become an important vector of chikungunya, dengue and Zika viruses. In the absence of specific antiviral therapy or a vaccine, vector management is the sole method available for reducing Aedes-induced disease morbidity. Determining the resistance status of Ae. albopictus to insecticides and exploring the resistance mechanisms is essential for future vector control planning. METHODS: Aedes albopictus larvae and pupae were sampled from six sites (two sites each from urban, suburban and rural) in Guangzhou...
January 3, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29291202/taeniasis-a-possible-cause-of-ileal-bleeding
#12
Alessia Settesoldi, Alessandro Tozzi, Ottaviano Tarantino
Taenia spp. are flatworms of the class Cestoda, whose definitive hosts are humans and primates. Human infestation (taeniasis) results from the ingestion of raw meat contaminated with encysted larval tapeworms and is considered relatively harmless and mostly asymptomatic. Anemia is not recognized as a possible sign of taeniasis and taeniasis-induced hemorrhage is not described in medical books. Its therapy is based on anthelmintics such praziquantel, niclosamide or albendazole. Here we describe a case of acute ileal bleeding in an Italian man affected with both Taenia spp...
December 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/29247619/a-new-drosophila-model-of-ubiquilin-knockdown-shows-the-effect-of-impaired-proteostasis-on-locomotive-and-learning-abilities
#13
Salinee Jantrapirom, Luca Lo Piccolo, Hideki Yoshida, Masamitsu Yamaguchi
Ubiquilin (UBQLN) plays a crucial role in cellular proteostasis through its involvement in the ubiquitin proteasome system and autophagy. Mutations in the UBQLN2 gene have been implicated in amyotrophic lateral sclerosis (ALS) and ALS with frontotemporal lobar dementia (ALS/FTLD). Previous studies reported a key role for UBQLN in Alzheimer's disease (AD); however, the mechanistic involvement of UBQLN in other neurodegenerative diseases remains unclear. The genome of Drosophila contains a single UBQLN homolog (dUbqn) that shows high similarity to UBQLN1 and UBQLN2; therefore, the fly is a useful model for characterizing the role of UBQLN in vivo in neurological disorders affecting locomotion and learning abilities...
January 15, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29210355/neuroangiostrongyliasis-the-subarachnoid-phase-and-its-implications-for-anthelminthic-therapy
#14
Paul Prociv, Megan Turner
Infection with the Rat Lungworm Angiostrongylus cantonensis is the leading cause of human eosinophilic meningoencephalitis worldwide. From its origins in southeastern Asia, the parasite was spread extensively throughout the twentieth century and is now established in many of the world's warmer regions. Its clinical effects range from mild and transient symptoms, usually headache with peripheral nerve dysfunction, to severe and permanent central nervous system (CNS) damage, occasionally fatal. The severity and prognosis of disease are determined by the larval dose, acquired by ingesting infected intermediate hosts (slugs and snails) or, less often, paratenic hosts, such as crabs, shrimps, frogs, and monitor lizards...
February 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29190292/tnf-%C3%AE-blockade-suppresses-pericystic-inflammation-following-anthelmintic-treatment-in-porcine-neurocysticercosis
#15
Siddhartha Mahanty, Miguel A Orrego, Carla Cangalaya, M Paz Adrianzen, Gianfranco Arroyo, Juan Calcina, Armando E Gonzalez, Héctor H García, Cristina Guerra-Giraldez, Theodore E Nash
BACKGROUND: Neurocysticercosis (NCC) is an infection of the brain with the larval cyst of the tapeworm, Taenia solium. Cysticidal treatment induces parasite killing resulting in a post inflammatory response and seizures, which generally requires corticosteroid treatment to control inflammation. The nature of this response and how to best control it is unclear. We investigated the anti-inflammatory effects of pretreatment with etanercept (ETN), an anti-tumor necrosis factor agent, or dexamethasone (DEX), a high potency corticosteroid, on the post treatment inflammatory response in naturally infected pigs with neurocysticercosis after a single dose of the cysticidal drug praziquantel (PZQ)...
November 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29186534/temperature-and-tissue-type-impact-development-of-lucilia-cuprina-diptera-calliphoridae-in-sri-lanka
#16
Y Tharindu B Bambaradeniya, W A Inoka P Karunaratne, Jeffery K Tomberlin, Induwara Goonerathne, Rasika B Kotakadeniya
Lucilia cuprina (Wiedemann; Diptera: Calliphoridae) is a facultative ecto-parasitic fly, distributed throughout the temperate and subtropical regions of the world. This blow fly species is of medical, veterinary, and forensic importance due to it being used in maggot debridement therapy (MDT), a causative agent of myiasis, and a decomposer of vertebrate carrion. The current study examined the combined effects of temperature and tissue type on the development of L. cuprina. Specimens were reared on three tissue types; swine muscle, swine liver, and bovine muscle at 20°C, 25°C, 27°C, and 38°C...
February 28, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29165211/case-report-myiasis-due-to-cochliomyia-hominivorax-and-dermatobia-hominis-clinical-and-pathological-differences-between-two-species-in-northern-peru
#17
Virgilio E Failoc-Rojas, Carolina Molina-Ayasta, Jaime Salazar-Zuloeta, Abel Samamé, Heber Silva-Díaz
Infestations caused by fly larvae (Myiasis) have been observed in patients with risk factors and in tropical zones. The aim of our study was to describe the clinical and epidemiological aspects and the risk factors associated with the occurrence of obligatory myiasis, as well as the therapeutic approach to patients. We identified the cases of myiasis diagnosed in two referral hospitals in northern Peru from January 2012 to December 2015 and included patients in whom larval development and a compatible clinical profile were observed...
November 20, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29131748/a-multicentre-clinical-evaluation-of-a-hydro-responsive-wound-dressing-the-glasgow-experience
#18
H Hodgson, D Davidson, A Duncan, J Guthrie, E Henderson, M MacDiarmid, K McGown, V Pollard, R Potter, A Rodgers, A Wilson, J Horner, M Doran, S Simm, R Taylor, A Rogers, M G Rippon, M Colgrave
OBJECTIVE: Our aim was to assess the effectiveness of hydro-responsive wound dressing (HRWD) in debridement and wound bed preparation of a variety of acute and chronic wounds that presented with devitalised tissue needing removal so that healing may proceed. METHOD: This was a non-comparative evaluation of acute and chronic wounds that required debridement as part of their normal treatment regimen. Clinicians recorded wound changes including a subjective assessment level of devitalised tissue and wound bed preparation, presence of pain, wound status (e...
November 2, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/29122715/nematicidal-activity-of-a-water-soluble-lectin-from-seeds-of-moringa-oleifera
#19
Mário Luan Silva de Medeiros, Maiara Celine de Moura, Thiago Henrique Napoleão, Patrícia Maria Guedes Paiva, Luana Cassandra Breitenbach Barroso Coelho, Ana Carla Diógenes Suassuna Bezerra, Michele Dalvina Correia da Silva
Gastrointestinal nematodes are the major cause of animal diseases, and the indiscriminate use of synthetic anthelmintic contributes to the development of drug resistance. Natural bioproducts are noteworthy since they have proved to be promising for alternative antiparasitic therapies. This study evaluated the in vitro effect of WSMoL (water soluble Moringa oleifera lectin) on hatching of eggs and on the development of early-stage larvae of gastrointestinal nematodes from naturally infected goats. In addition, the interference of WSMoL on activity of proteases was determined and the affinity of the lectin for glycosylated molecules of these parasites was investigated using fluorescein isothiocyanate (FITC)-labeled WSMoL...
March 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29061647/pyridoxine-dependent-epilepsy-in-zebrafish-caused-by-aldh7a1-deficiency
#20
Izabella A Pena, Yann Roussel, Kate Daniel, Kevin Mongeon, Devon Johnstone, Hellen Weinschutz Mendes, Marjolein Bosma, Vishal Saxena, Nathalie Lepage, Pranesh Chakraborty, David A Dyment, Clara D M van Karnebeek, Nanda Verhoeven-Duif, Tuan Vu Bui, Kym M Boycott, Marc Ekker, Alex MacKenzie
Pyridoxine-dependent epilepsy (PDE) is a rare disease characterized by mutations in the lysine degradation gene ALDH7A1 leading to recurrent neonatal seizures, which are uniquely alleviated by high doses of pyridoxine or pyridoxal 5'-phosphate (vitamin B6 vitamers). Despite treatment, neurodevelopmental disabilities are still observed in most PDE patients underlining the need for adjunct therapies. Over 60 years after the initial description of PDE, we report the first animal model for this disease: an aldh7a1-null zebrafish ( Danio rerio ) displaying deficient lysine metabolism and spontaneous and recurrent seizures in the larval stage (10 days postfertilization)...
December 2017: Genetics
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