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https://www.readbyqxmd.com/read/27931226/culex-pipiens-forms-and-urbanization-effects-on-blood-feeding-sources-and-transmission-of-avian-plasmodium
#1
Josué Martínez-de la Puente, Martina Ferraguti, Santiago Ruiz, David Roiz, Ramón C Soriguer, Jordi Figuerola
BACKGROUND: The wide spread mosquito Culex pipiens pipiens have two forms molestus and pipiens which frequently hybridize. The two forms have behavioural and physiological differences affecting habitat requirements and host selection, which may affect the transmission dynamic of Cx. p. pipiens-borne diseases. METHODS: During 2013, blood engorged Cx. p. pipiens mosquitoes were captured in urban, rural and natural areas from Southern Spain. In 120 mosquitoes, we identified the blood meal origin at vertebrate species/genus level and the mosquito form...
December 8, 2016: Malaria Journal
https://www.readbyqxmd.com/read/27920716/acute-clinical-worsening-after-steroid-administration-in-cervical-myelitis-may-reveal-a-subdural-arteriovenous-fistula
#2
Silvia Rain, Jan Udding, Daniel Broere
Subdural arteriovenous fistula (SDAVF) is a rare condition characterized by clinical manifestations ranging from mild bilateral sensory deficits to quadriplegia. The diagnosis is often delayed due to unspecific neurological symptoms, initially diagnosed as polyneuropathy or myelopathy. The diagnosis can be delayed for as long as 1-15 years. The following report describes a cervical SDAVF case initially misdiagnosed as myelitis transversa and treated with intravenous steroids. A 56-year-old male presented with sensory deficits and mild leg and right arm weakness...
September 2016: Case Reports in Neurology
https://www.readbyqxmd.com/read/27916582/in-vitro-acaricide-activity-of-ocotea-aciphylla-nees-mez-lauraceae-extracts-and-identification-of-the-compounds-from-the-active-fractions
#3
Rodrigo Souza Conceição, Monique Marylin A de A Carneiro, Isabella Mary Alves Reis, Alexsandro Branco, Ivo Jose Curcino Vieira, Raimundo Braz-Filho, Mariana Borges Botura
The in vitro acaricide activity of hexane, ethyl acetate and ethanol extracts of Ocotea aciphylla leaves was investigated by means of an immersion tests using Rhipicephalus (Boophilus) microplus engorged females and larvae. All extracts were shown effective against the different stages of the parasite, and the ethanol extract (50mg/mL concentration) was the most active (more than 90% efficacy in both assays). The ethanolic extract was fractionated using column chromatography with silica gel as stationary phase to furnish several fractions that were tested against larvae of R...
November 28, 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27916581/use-of-a-tick-borne-disease-manual-increases-accuracy-of-tick-identification-among-primary-care-providers-in-lyme-disease-endemic-areas
#4
Amber D Butler, Meredith L Carlson, Christina A Nelson
Given the high incidence of tick bites and tick-borne diseases in the United States, it is important for primary care providers to recognize common ticks and the pathogens they may transmit. If a patient has removed and saved an attached tick, identifying the tick helps guide clinical management and determine whether antibiotic prophylaxis for Lyme disease is appropriate. To investigate providers' ability to recognize common ticks and the pathogens they may transmit, we asked 76 primary care providers from Lyme disease endemic areas to identify the common name or genus of preserved ticks found in their area...
November 23, 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27914563/differential-effects-of-testosterone-and-estradiol-on-clitoral-function-an-experimental-study-in-rats
#5
Paolo Comeglio, Ilaria Cellai, Sandra Filippi, Chiara Corno, Francesca Corcetto, Annamaria Morelli, Elena Maneschi, Elisa Maseroli, Edoardo Mannucci, Massimiliano Fambrini, Mario Maggi, Linda Vignozzi
INTRODUCTION: Female sexual response is a complex phenomenon in which psychological, neurologic, and vascular mechanisms and hormonal factors interact. During the arousal phase, they cooperate to increase genital blood flow, thus inducing engorgement of the clitoris and lubrication of the vagina. Regulation of vascular and non-vascular smooth muscle tone is the crucial event in the erectile process. Preclinical studies have suggested that nitric oxide (NO) is the main vasodilator neurotransmitter modulating, through the second messenger cyclic guanosine monophosphate (cGMP), clitoral flow vessels...
December 2016: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/27911903/transfected-babesia-bovis-expressing-a-tick-gst-as-a-live-vector-vaccine
#6
Daiane P Oldiges, Jacob M Laughery, Nelson Junior Tagliari, Ronaldo Viana Leite Filho, William C Davis, Itabajara da Silva Vaz, Carlos Termignoni, Donald P Knowles, Carlos E Suarez
The Rhipicephalus microplus tick is a notorious blood-feeding ectoparasite of livestock, especially cattle, responsible for massive losses in animal production. It is the main vector for transmission of pathogenic bacteria and parasites, including Babesia bovis, an intraerythrocytic apicomplexan protozoan parasite responsible for bovine Babesiosis. This study describes the development and testing of a live B. bovis vaccine expressing the protective tick antigen glutathione-S-transferase from Haemaphysalis longicornis (HlGST)...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27910105/molecular-screening-of-leishmania-spp-infection-and-bloodmeals-in-sandflies-from-a-leishmaniasis-focus-in-southwestern-turkey
#7
M Karaku Ş, M Pekağ Irba Ş, S Demir, H Eren, S Töz, Y Özbel
Leishmaniasis is an arthropod-borne disease that affects approximately 2 million people worldwide annually. The aims of this study were to detect the presence of Leishmania (Kinetoplastida: Trypanosomatidae) DNA and the feeding preferences of probable vector species in an endemic focus of Leishmania infantum in Turkey. Entomological sampling was performed in August and October 2015 in Aydın province, where cases of human and canine leishmaniasis have been reported previously. A total of 1059 sandfly specimens comprising nine species belonging to two genera, Phlebotomus and Sergentomyia (both: Diptera: Psychodidae), and five subgenera of the Phlebotomus genus (Phlebotomus, Paraphlebotomus, Larroussius, Adlerius and Transphlebotomus) were collected in five villages...
December 2, 2016: Medical and Veterinary Entomology
https://www.readbyqxmd.com/read/27876918/report-of-amblyomma-testudinarium-in-mithuns-bos-frontalis-from-eastern-mizoram-india
#8
J K Chamuah, K Bhattacharjee, P C Sarmah, O K Raina, S Mukherjee, C Rajkhowa
Physical examination of semi-domesticated, free ranging mithuns (Bos frontalis) during an animal health check-up and treatment camp organized at Khuwangleng village in the Champhai district of Mizoram, India and adjacent to Myanmar Border revealed presence of unusually large blood engorged ticks attaching to the dewlap and inner aspects of thighs. On the basis of morphological study, the ticks were found indistinguishable from female Amblyomma testudinarium. Prevalence rate of the tick species in mithuns living in the forests was 9...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27876644/dinotefuran-induced-morphophysiological-changes-in-semi-engorged-females-rhipicephalus-sanguineus-latreille-1806-acari-ixodidae-ticks-ultra-structural-evaluation
#9
Patrícia Rosa de Oliveira, Luis Adriano Anholeto, Gerváso Henrique Bechara, Maria Izabel Camargo Mathias
The present study demonstrated the effects of dinotefuran (active ingredient of the acaricide Protetor Pet(®)) on the ovary and midgut cells of semi engorged R. sanguineus females exposed to different concentrations of this chemical. For this, 120 semi-engorged females were divided into four treatment groups with 30 individuals each: group I or control (distilled water), group II (5000ppm), groups III (6250ppm) and group IV (8334ppm of dinotefuran). All the ticks were immersed in the different concentrations of dinotefuran or in distilled water for 5min and then dried and kept in BOD incubator for 7days...
November 19, 2016: Acta Tropica
https://www.readbyqxmd.com/read/27871776/life-cycle-of-spinose-ear-tick-otobius-megnini-acari-argasidae-infesting-the-race-horses-in-nuwara-eliya-sri-lanka
#10
G C P Diyes, R S Rajakaruna
Otobius megnini infests mainly domesticated and wild animals and occasionally humans. It has been identified as an agent of human and horse otoacariasis in Sri Lanka. The number of nymphal stages in the life cycle of O. megnini varies from one to three in different geographic regions. The present study determined the life cycle of O. megnini infesting the racehorses in Nuwara Eliya. A tick colony was initiated from fully engorged nymphs collected from horses and maintained at 10°C, 22°C and 28°C. Immature stages were reared on New Zealand rabbits...
November 18, 2016: Acta Tropica
https://www.readbyqxmd.com/read/27859488/first-report-of-amitraz-and-cypermethrin-resistance-in-rhipicephalus-sanguineus-sensu-lato-infesting-dogs-in-mexico
#11
R I Rodriguez-Vivas, M M Ojeda-Chi, I Trinidad-Martinez, M E Bolio-González
Engorged female Rhipicephalus sanguineus sensu lato (Ixodida: Ixodidae) were collected from dogs in the state of Yucatán, Mexico. Fourteen tick populations were collected from dogs at seven veterinary clinics, four residential homes and three cattle farms. The larval immersion test was used in the progeny of collected adult females to test susceptibility to amitraz and cypermethrin. Dose-mortality regressions, 50% lethal concentrations (LC50 ), confidence intervals and slope were estimated by probit analysis...
November 11, 2016: Medical and Veterinary Entomology
https://www.readbyqxmd.com/read/27858592/ultrasound-guided-access-into-the-abdomen-in-the-setting-of-portal-hypertension-a-novel-technique
#12
Cory N Criss, Matthew W Ralls, Marcus D Jarboe
As the field of minimally invasive surgery rapidly evolves, there is an opportunity to adopt innovative techniques to accommodate a variety of patient populations. In patients with portal hypertension, a major risk factor upon entry into the abdomen is injury to large, engorged paraumbilical vessels in the anterior abdominal wall. Major blood loss often results from just entering the abdomen. Here, we describe a patient with caput medusae secondary to portal hypertension presenting for laparoscopic repair of a ventral hernia...
November 18, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/27857922/the-impact-of-engorged-vein-within-traumatic-posterior-neck-muscle-identified-in-preoperative-computed-tomography-angiography-to-estimated-blood-loss-during-posterior-upper-cervical-spine-surgery
#13
Mahn Jeong Ha, Byung Chul Kim, Chae Wook Huh, Jae Il Lee, Won Ho Cho, Hyuk Jin Choi
OBJECTIVE: Injuries of upper cervical spine are potentially fatal. Thus, appropriate diagnosis and treatment is essential. In our institute, preoperative computed tomography angiography (CTA) has been performed for evaluation of injuries of bony and vascular structure. The authors confirmed the engorged venous plexus within injured posterior neck muscle. We have this research to clarify the relationship between the engorged venous plexus and engorged vein. METHODS: A retrospective review identified 23 adult patients who underwent 23 posterior cervical spine surgeries for treatment of upper cervical injury between 2013 and 2015...
October 2016: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/27857849/in-vitro-effect-of-seven-essential-oils-on-the-reproduction-of-the-cattle-tick-rhipicephalus-microplus
#14
Rafael Pazinato, Andréia Volpato, Matheus D Baldissera, Roberto C V Santos, Dilmar Baretta, Rodrigo A Vaucher, Janice L Giongo, Aline A Boligon, Lenita Moura Stefani, Aleksandro Schafer Da Silva
The acaricidal effect of seven essential oils was examined in vitro against the cattle tick (Rhipicephalus microplus). Engorged female ticks were manually collected in farms of Southern Brazil and placed into petri dishes (n = 10) in order to test the following oils: juniper (Juniperus communis), palmarosa (Cymbopogon martinii), cedar (Cedrus atlantica), lemon grass (Cymbopogon citratus), ginger (Zingiber officinale), geranium (Pelargonium graveolens) and bergamot (Citrus aurantium var bergamia) at concentrations of 1%, 5%, and 10% each...
November 2016: Journal of Advanced Research
https://www.readbyqxmd.com/read/27856176/identification-of-i-ricinus-i-persulcatus-and-i-trianguliceps-species-by-multiplex-pcr
#15
Kairi Värv, Anna Ivanova, Julia Geller, Jaanus Remm, Kertu Jaik, Nina Tikunova, Vera Rar, Åke Lundkvist, Irina Golovljova
Correct identification of tick species is an essential requirement for any scientific study engaged in tick-associated research. However, morphological identification can lead to misinterpretations, especially when dealing with vector-host research and sub-adult, engorged or damaged specimens. To overcome this limitation, we developed a novel assay to discriminate between Ixodes ricinus, I. persulcatus and I. trianguliceps species collected from rodents or vegetation, using the second internal transcribed spacer (ITS2) as a genetic marker...
November 10, 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27825659/ferritin-1-silencing-effect-in-rhipicephalus-sanguineus-sensu-lato-acari-ixodidae-during-experimental-infection-with-ehrlichia-canis
#16
Joana Ferrolho, Sandra Antunes, Gustavo S Sanches, Joana Couto, Patrícia M Évora, Catarina Rosa, Marcos R André, Rosângela Z Machado, Gervásio H Bechara, Ana Domingos
Rhipicephalus sanguineus sensu lato (s.l.) is a very common ectoparasite of domestic dogs able to transmit several pathogens of human and veterinary importance. Tick infestations and tick-borne diseases (TBDs) remain a serious and persistent problem, due to the lack of efficient control measures. It is therefore vital that novel approaches to control are pursued. Whilst vaccination is recognised as a potential control method to reduce tick infestation, no anti-R. sanguineus vaccine is available. Ticks depend on their blood meals to obtain nutrients and to achieve sexual maturity, which exposes them to vast amounts of iron...
January 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27825329/intravitreal-dexamethasone-implants-for-the-treatment-of-refractory-scleritis-combined-with-uveitis-in-adult-onset-still-s-disease-a-case-report
#17
Seong Joon Ahn, Sun Jin Hwang, Byung Ro Lee
BACKGROUND: Adult-onset Still's disease is a systemic inflammatory disease which presents with uveitis and scleritis in the eye. Intravitreal dexamethasone implants are used for the treatment of refractory uveitis. CASE PRESENTATION: A 19-year-old woman diagnosed to have adult-onset Still's disease for fevers, joint pain, and a salmon-colored bumpy rash presented with scleritis and uveitis in the left eye. Topical and systemic steroids with oral methotrexate failed to control the inflammation...
November 8, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27824139/rna-seq-analyses-of-the-midgut-from-blood-and-serum-fed-ixodes-ricinus-ticks
#18
Jan Perner, Jan Provazník, Jana Schrenková, Veronika Urbanová, José M C Ribeiro, Petr Kopáček
Adult females of the genus Ixodes imbibe blood meals exceeding about 100 times their own weight within 7‒9 days. During this period, ticks internalise components of host blood by endocytic digest cells that line the tick midgut epithelium. Using RNA-seq, we aimed to characterise the midgut transcriptome composition in adult Ixodes ricinus females during early and late phase of engorgement. To address specific adaptations to the haemoglobin-rich diet, we compared the midgut transcriptomes of genetically homogenous female siblings fed either bovine blood or haemoglobin-depleted serum...
November 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27806051/transmission-of-leishmania-infantum-in-the-canine-leishmaniasis-focus-of-mont-rolland-senegal-ecological-parasitological-and-molecular-evidence-for-a-possible-role-of-sergentomyia-sand-flies
#19
Massila Wagué Senghor, Abdoul Aziz Niang, Jérome Depaquit, Hubert Ferté, Malick Ndao Faye, Eric Elguero, Oumar Gaye, Bulent Alten, Utku Perktas, Cécile Cassan, Babacar Faye, Anne-Laure Bañuls
Leishmania (L.) infantum is the causative agent in an endemic focus of canine leishmaniasis in the Mont-Rolland district (Thiès, Senegal). In this area, the transmission cycle is well established and more than 30% of dogs and 20% of humans are seropositive for L. infantum. However, the sand fly species involved in L. infantum transmission cycle are still unknown. Between 2007 and 2010, 3654 sand flies were collected from different environments (indoor, peridomestic, farming and sylvatic areas) to identify the main L...
November 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27793613/comparative-biology-of-the-tropical-and-temperate-species-of-rhipicephalus-sanguineus-sensu-lato-acari-ixodidae-under-different-laboratory-conditions
#20
Marcelo B Labruna, Monize Gerardi, Felipe S Krawczak, Jonas Moraes-Filho
Recent studies have shown that the taxon Rhipicephalus sanguineus sensu lato (s.l.) is represented in Latin America by two distinct species, designated as 'tropical species' (distributed from Mexico to Brazil) and 'temperate species' (restricted to the southern cone of South America). Since both tropical and temperate species of R. sanguineus s.l. are parasites primarily of domestic dogs, the reasons for their distinct geographical distribution in South America could be related to particular requirements of abiotic conditions for off-host development...
January 2017: Ticks and Tick-borne Diseases
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