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https://www.readbyqxmd.com/read/28342670/chemical-composition-and-acaricide-activity-of-an-essential-oil-from-a-rare-chemotype-of-cinnamomum-verum-presl-on-rhipicephalus-microplus-acari-ixodidae
#1
Ildenice Nogueira Monteiro, Odair Dos Santos Monteiro, Lívio Martins Costa-Junior, Aldilene da Silva Lima, Eloisa Helena de Aguiar Andrade, José Guilherme Soares Maia, Victor Elias Mouchrek Filho
The Essential Oils (EOs) from the leaves of species Cinnamomum verum J. Presl are used in the pharmaceutical industry for their numerous biological activities. Currently, the main compound of C. verum EO is eugenol which has acaricidal activity; however, a rare chemotype with benzyl benzoate as the main component can be found. Benzyl benzoate is recognized as an acaricide; however, studies of the C. verum EOs benzyl benzoate chemotype on Rhipicephalus microplus were not reported. The aim of this study was to evaluate the acaricide activity of an EO from a rare chemotype of C...
March 18, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28342429/non-parasitic-life-cycle-of-the-cattle-tick-rhipicephalus-boophilus-microplus-in-panicum-maximum-pastures-in-northern-argentina
#2
Mariano Mastropaolo, Atilio J Mangold, Alberto A Guglielmone, Santiago Nava
The aim of this work was to study the non-parasitic phase of the Rhipicephalus microplus life cycle in Panicum maximum grasses from northern Argentina, in order to provide ecological information for designing methods of tick control. Four localities were chosen as replicates. The biological parameters measured were proportion of females ovipositing, the pre-oviposition period, the proportion of egg clusters hatching, the incubation period of eggs, larval longevity, and the total non-parasitic period (time from the exposure of the female to the date of death of the last larva) (TNPP))...
March 21, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28340608/molecular-evidence-of-rickettsia-spp-in-ixodid-ticks-and-rodents-in-suburban-natural-and-rural-habitats-in-slovakia
#3
Lenka Minichová, Zuzana Hamšíková, Lenka Mahríková, Mirko Slovák, Elena Kocianová, Mária Kazimírová, Ľudovít Škultéty, Katarína Štefanidesová, Eva Špitalská
BACKGROUND: Natural foci of tick-borne spotted fever group (SFG) rickettsiae of public health concern have been found in Slovakia, but the role of rodents in their circulation is unclear. Ticks (Ixodes ricinus, Ixodes trianguliceps, Dermacentor marginatus, Dermacentor reticulatus, Haemaphysalis concinna and Haemaphysalis inermis) and tissues of rodents (Apodemus flavicollis, Apodemus sylvaticus, Myodes glareolus, Microtus arvalis, Microtus subterraneus and Micromys minutus) were examined for the presence of SFG rickettsiae and Coxiella burnetii by molecular methods...
March 24, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28335800/a-new-method-for-in-vitro-feeding-of-rhipicephalus-australis-formerly-rhipicephalus-microplus-larvae-a-valuable-tool-for-tick-vaccine-development
#4
Jos J A Trentelman, Jos A G M Kleuskens, Jos van de Crommert, Theo P M Schetters
BACKGROUND: Rhipicephalus microplus is a hard tick that has a major impact on cattle health in tropical and subtropical regions because it feeds on cattle and is implicated in the transmission of pathogens that cause diseases such as bovine anaplasmosis and babesiosis. Presently, acaricides are used to control tick infestation but this is becoming increasingly less effective due to the emergence of tick strains that are resistant to one or more classes of acaricides. Anti-tick vaccines are a promising alternative to control tick infestation in cattle...
March 23, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28327880/using-plastic-tips-in-artificial-feeding-of-rhipicephalus-sanguineus-sensu-lato-acari-ixodidae-females
#5
Jaqueline Rodrigues de Almeida Valim, Charles Passos Rangel, Bruna de Azevedo Baêta, Carla Carolina Dias Uzedo Ribeiro, Matheus Dias Cordeiro, Rafaella Câmara Teixeira, Patrícia Barizon Cepeda, Adivaldo Henrique da Fonseca
This study evaluated the influence of the initial weight, feeding period and temperature on weight gain and biological parameters of the non-parasitic phase of partially engorged Rhipicephalus sanguineus females that were artificially fed using plastic tips as feeding devices. The device did not alter the oviposition of the females or any other parameters evaluated. Furthermore, it was observed that the temperature of the feeding the group did not affect the weight gain and biology of ticks. This device has great potential for the development of studies on bioagent transmission because it provides higher intake of blood by ixodid ticks...
March 16, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28316407/theileria-annulata-induced-brisket-oedema-in-a-bull-and-its-successful-treatment
#6
B Sudhakara Reddy, S Sivajothi
In the present case, jugular vein engorgement and oedema of the brisket region which mimic the signs of pseudopericarditis due to theileriosis in a bull was reported. An adult Ongole crossbred bull with history of weakness, anorexia and oedema at brisket region was referred to Teaching Veterinary Clinical Complex, College of Veterinary Science, Proddatur. Physical examination revealed the presence of ticks over the body, right and left prescapular lymphadenopathy and oedema at brisket region. Blood examination revealed the presence of piroplasms in erythrocytes, schizont in lymphocytes, anaemia and lymphopenia...
March 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28316396/sexual-alteration-in-antioxidant-response-and-esterase-profile-in-hyalomma-anatolicum-anatolicum-acari-ixodidae-ticks
#7
Mayukh Ghosh, Nirmal Sangwan, Arun K Sangwan, Rajesh Kumar, Ruchi Singh Gaur
The objective of the study was to reveal physiological link between sex specific engorgement pattern and evading mechanism of ticks against oxidative stress as well as acaricides. Quantitative determination of nitric oxide radical scavenging, superoxide dismutase activity and reduced glutathione (GSH) concentrations in salivary gland and gut extracts of male and female Hyalomma anatolicum anatolicum (Acari: Ixodidae) ticks established significant variation in antioxidant responses between two sexes of the ticks...
March 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28300174/ticks-elicit-variable-f%C3%A2-ibrinogenolytic-activities-upon-feeding-on-hosts-with-different-immune-backgrounds
#8
Ashish Vora, Vikas Taank, Sucharita M Dutta, John F Anderson, Durland Fish, Daniel E Sonenshine, John D Catravas, Hameeda Sultana, Girish Neelakanta
Ticks secrete several anti-hemostatic factors in their saliva to suppress the host innate and acquired immune defenses against infestations. Using Ixodes scapularis ticks and age-matched mice purchased from two independent commercial vendors with two different immune backgrounds as a model, we show that ticks fed on immunodeficient animals demonstrate decreased fibrinogenolytic activity in comparison to ticks fed on immunocompetent animals. Reduced levels of D-dimer (fibrin degradation product) were evident in ticks fed on immunodeficient animals in comparison to ticks fed on immunocompetent animals...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28296277/effect-of-icariin-in-combination-with-daily-sildenafil-on-penile-atrophy-and-erectile-dysfunction-in-a-rat-model-of-bilateral-cavernous-nerves-injury
#9
Y Xu, H Xin, Y Wu, R Guan, H Lei, X Fu, Z Xin, Y Yang
The commonly utilized phosphodiesterase type 5 inhibitors do not lead to satisfactory penile erection after radical prostatectomy mainly because of insufficient nitric oxide drive from the damaged cavernous nerves. The aim of this study was to assess the efficacy and mechanisms of icariin in combination with daily sildenafil on neurogenic erectile dysfunction and penile atrophy in a rat model of bilateral cavernous nerves injury. Sixty male Sprague-Dawley rats injected with 5-ethynyl-2-deoxyuridine (50 mg/kg) at postnatal day 1 for the purpose of tracking endogenous stem cells in penis...
March 10, 2017: Andrology
https://www.readbyqxmd.com/read/28270232/melting-pot-of-tick-borne-zoonoses-the-european-hedgehog-contributes-to-the-maintenance-of-various-tick-borne-diseases-in-natural-cycles-urban-and-suburban-areas
#10
Setareh Jahfari, Sanne C Ruyts, Ewa Frazer-Mendelewska, Ryanne Jaarsma, Kris Verheyen, Hein Sprong
BACKGROUND: European hedgehogs (Erinaceus europaeus) are urban dwellers and host both Ixodes ricinus and Ixodes hexagonus. These ticks transmit several zoonotic pathogens like Borrelia burgdorferi (sensu lato), Anaplasma phagocytophilum, Rickettsia helvetica, Borrelia miyamotoi and "Candidatus Neoehrlichia mikurensis". It is unclear to what extent hedgehogs in (sub) urban areas contribute to the presence of infected ticks in these areas, which subsequently pose a risk for acquiring a tick-borne disease...
March 7, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28249362/effects-of-lysosomal-biotherapeutic-recombinant-protein-expression-on-cell-stress-and-protease-and-general-host-cell-protein-hcp-release-in-chinese-hamster-ovary-cells
#11
Damiano Migani, C Mark Smales, Daniel G Bracewell
Recombinant human Acid Alpha Glucosidase (GAA) is the therapeutic enzyme used for the treatment of Pompe disease, a rare genetic disorder characterised by GAA deficiency in the cell lysosomes(1) . The manufacturing process for GAA can be challenging, in part due to protease degradation. The overall goal of this study was to understand the effects of GAA overexpression on cell lysosomal phenotype and host cell protein (HCP) release, and any resultant consequences for protease levels and ease of manufacture. To do this we first generated a human recombinant GAA producing stable CHO cell line and designed the capture chromatographic step anion exchange (IEX)...
March 1, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/28236065/glioblastoma-spheroids-produce-infiltrative-gliomas-in-the-rat-brainstem
#12
Zhiping Zhou, Neal Luther, Ranjodh Singh, John A Boockvar, Mark M Souweidane, Jeffrey P Greenfield
PURPOSE: Diffuse intrinsic pontine glioma (DIPG) is universally fatal without proven therapy other than radiation therapy for palliation. Representative animal models will play an essential role in the preclinical stage of future therapy development. To address the shortage of representative models, we created a novel infiltrative brainstem glioma model in rats based on glioblastoma spheroids. METHODS: Cells dissociated from glioblastoma spheroids grown from surgical specimens were implanted into the brainstem of NIH nude rats...
February 24, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28225856/immunogenic-potential-of-rhipicephalus-boophilus-microplus-aquaporin-1-against-rhipicephalus-sanguineus-in-domestic-dogs
#13
Patricia Martinez Évora, Gustavo Seron Sanches, Felix David Guerrero, Adalberto Pérez de León, Gervásio Henrique Bechara
This study evaluated a recombinant aquaporin 1 protein of Rhipicephalus (Boophilus) microplus (RmAQP1) as antigen in a vaccine against R. sanguineus. Five dogs were immunized with RmAQP1 (10 µg) + adjuvant (Montanide) (G1), and five were inoculated with adjuvant only (G2), three times. Twenty-one days after the last immunization, animals of both groups were challenged with R. sanguineus larvae, nymphs and adults, and their biotic potential was compared. Blood samples were collected before each immunization and every 28 days after the last immunization for 10 weeks...
February 16, 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/28222769/plasticity-of-host-selection-by-malaria-vectors-of-papua-new-guinea
#14
John B Keven, Lisa Reimer, Michelle Katusele, Gussy Koimbu, Rebecca Vinit, Naomi Vincent, Edward Thomsen, David R Foran, Peter A Zimmerman, Edward D Walker
BACKGROUND: Host selection is an important determinant of vectorial capacity because malaria transmission increases when mosquitoes feed more on humans than non-humans. Host selection also affects the outcome of long-lasting insecticidal nets (LLIN). Despite the recent nationwide implementation of LLIN-based malaria control program in Papua New Guinea (PNG), little is known about the host selection of the local Anopheles vectors. This study investigated the host selection of Anopheles vectors in PNG...
February 21, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28215869/a-novel-assembly-pheromone-trap-for-tick-control-in-dog-kennels
#15
R K Anish, Bhaskaran Ravi Latha, Giriprasath Ramanathan, Uma Tirichurapalli Sivagnanam, C Sreekumar, V Leela
A novel ecofriendly sticky tick trap device for the control of dog tick Rhipicephalus sanguineus using gold nanoparticle assembly pheromone complex as a bait was developed. Assembly pheromones comprising of guanine, xanthine and adenine in the ratio of 25:1:1 was encapsulated in gold nanoparticle. The response of the different stages of unfed R. sanguineus ticks was evaluated using petridish bioassay. Statistical analysis was done using chi-square test. Petridish bioassay with unfed stages of R. sanguineus revealed that 100% of the larvae, nymph and adults were attracted to assembly pheromone nanogold complex within 24h...
February 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28203193/recurrent-uveal-effusion-after-laser-iridotomy
#16
Hiroshi Sakai, Michiko Yonahara, Miyako Sakai
A 59-year-old woman was seen by an ophthalmologist for blurred vision, ocular pain, headache, and nausea. She was diagnosed with acute primary angle closure (APAC) and successfully treated with medications. Using ultrasound biomicroscopy (UBM), engorged episcleral vein was observed and small uveal effusion was diagnosed after laser peripheral iridotomy (LPI). The uveal effusion disappeared and was again diagnosed by UBM together with anterior segment inflammation with ocular pain. Iritis caused by LPI after APAC might be a cause of uveal effusion in this specific case...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28187834/pyrethroid-resistance-in-iranian-field-populations-of-rhipicephalus-boophilus-annulatus
#17
Seyyed Payman Ziapour, Sadegh Kheiri, Mahmoud Fazeli-Dinan, Farzaneh Sahraei-Rostami, Reza Ali Mohammadpour, Mohsen Aarabi, Seyed Hassan Nikookar, Mohammad Sarafrazi, Fatemeh Asgarian, Ahmadali Enayati, Janet Hemingway
Resistance to acaricides in ticks is becoming increasingly widespread throughout the world; therefore, tick control requires resistance monitoring for each tick species. The aims of this study were to monitor the susceptibility status of the cattle tick, Rhipicephalus (Boophilus) annulatus (Acari: Ixodidae), against pyrethroid acaricides from Mazandaran Province, northern Iran, and where resistance was evident, and establish the possible underlying mechanisms. Fully engorged adult R. (B.) annulatus females collected on cattle from Mazandaran Province...
March 2017: Pesticide Biochemistry and Physiology
https://www.readbyqxmd.com/read/28170298/progesterone-containing-gel-does-not-eliminate-postpartum-breast-engorgement
#18
Nikolay P Alekseev
BACKGROUND: Severe breast engorgement can cause substantial discomfort for mothers and interfere with an infant's ability to feed at the breast. The aim of the study was to clarify the possibility that the percutaneous progesterone-containing gel (Progestogel) can eliminate severe postpartum breast engorgement in lactating women. SUBJECTS AND METHODS: Twenty three patients were examined. The Progestogel for transdermal therapy in an amount of 2.5-3 g was applied to the breast...
March 2017: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
https://www.readbyqxmd.com/read/28170295/after-chemotherapy-treatment-for-maternal-cancer-during-pregnancy-is-breastfeeding-possible
#19
Stephen Stopenski, Anum Aslam, Xinmin Zhang, Elyce Cardonick
OBJECTIVE: To report breastfeeding complaints of women diagnosed with cancer during pregnancy and correlate success with characteristics of their treatment. MATERIALS AND METHODS: This is a prospective cohort study of women diagnosed with cancer during pregnancy who attempted breastfeeding. We surveyed participants about breast engorgement, milk let down, and consistent breast milk production through mailed questionnaires. Treatment details, including the type and number of chemotherapy cycles given during pregnancy and antepartum or postpartum depression, were collected...
March 2017: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
https://www.readbyqxmd.com/read/28164062/case-report-of-mimicry-between-synovial-hemangioma-and-synovial-chondromatosis-of-the-shoulder
#20
Justin Colanese, Akin Cil, Nkem Egekeze, Kamani Lankachandra, Suhel Kotwal
INTRODUCTION: Synovial hemangioma is a developmental hamartoma of vascular tissue within the synovium; no cases involving the shoulder girdle have been described in the literature. Synovial chondromatosis is a benign condition in which synovial cells undergo metaplasia into hyaline cartilage and is also thought to infrequently affect the shoulder region. CASE REPORT: A 44-year-old female presented with left shoulder pain of 7-year duration. Magnetic resonance image displayed a 2...
September 2016: Journal of Orthopaedic Case Reports
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