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https://www.readbyqxmd.com/read/28427979/a-new-type-of-spinal-epidural-arteriovenous-fistulas-causes-spinal-epidural-hemorrhage-an-analysis-of-five-cases-and-natural-history-consideration
#1
Jia-Xing Yu, Tao Hong, Yong-Jie Ma, Feng Ling, Hong-Qi Zhang
BACKGROUND: Spinal epidural arteriovenous fistulas (SEDAVFs) are peculiar and poorly understood lesions with a poorly understood natural history. They are usually subclassified into two types according to their drainage components. This study aimed to describe a new type of SEDAVFs that is featured with a unique drainage pattern and present our natural history hypothesis of SEDAVFs. METHODS: Five SEDAVF cases of the new type were retrospectively reviewed from a high case-volume spinal vascular malformation database...
April 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28418698/incidence-and-risk-factors-of-mastitis-in-shiraz-iran-results-of-a-cohort-study
#2
Mahnaz Zarshenas, Yun Zhao, Shahnaz Poorarian, Colin W Binns, Jane A Scott
BACKGROUND: Approximately one in five Western women who breastfeed are likely to experience acute mastitis. This study investigated the incidence and risk factors of acute mastitis in a cohort of Iranian women. SUBJECTS AND METHODS: Subjects were 672 participants of the Shiraz Infant Feeding Study conducted between June 2014 and March 2015. Mothers were recruited from the maternity ward and followed up at 1, 3, 4, and 6 months postpartum to obtain information on their breastfeeding practices and experiences...
April 18, 2017: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
https://www.readbyqxmd.com/read/28414671/three-s-a-crowd-an-extremely-rare-case-of-cor-triatriatum-dexter
#3
A Elagizi, R Marvin, G O'Bryan, V Vyas, L Arcement
INTRODUCTION: Cor triatriatum is a congenital cardiac anomaly in which the left (sinister) or right (dexter) atrium is divided into two compartments by residual embryonic tissue, resulting in a tri-atrial heart. As cor triatriatum dextrum can present clinically in various ways and have multiple associated cardiac anomalies, this report attempts to contribute to what is known about this exceedingly rare disorder. CASE: A 40 year old Hispanic man with a medical history of gastritis presented with complaints of palpitations, dizziness and bilateral lower extremity edema...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28413384/pyogenic-granuloma-of-the-penis-an-uncommon-lesion-with-unusual-presentation
#4
Rateb F Katmeh, Luke Johnson, Eilis Kempley, Shrinal Kotecha, Wael Hamarneh, Sudhanshu Chitale
We present the case of a 37-year-old man who presented with a penile lesion that engorged on erection. Ultrasound examination demonstrated vascularity of the lesion and the decision was made to perform a complete excision. Histological analysis confirmed the diagnosis of a pyogenic granuloma of the penis. Follow-up demonstrated no recurrence at 3 months.
January 2017: Current Urology
https://www.readbyqxmd.com/read/28405771/sacral-epidural-arteriovenous-fistulas-imitators-of-spinal-dural-arteriovenous-fistulas-with-different-pathologic-anatomy-report-of-three-cases-and-review-of-the-literature
#5
Jan-Karl Burkhardt, Michael M Safaee, Aaron J Clark, Michael T Lawton
BACKGROUND: Sacral epidural arteriovenous fistulas (eAVFs) are rare and often misdiagnosed because of the incongruence between the thoracic level of clinical deficits and the sacral location of the offending pathology. Failure to diagnose this lesion delays treatment, resulting in prolonged venous hypertension in the cord, progressive neurological deterioration, and decreased chances of recovery. METHODS: A single-institution case series and the published literature were reviewed...
April 12, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28399212/fossilized-mammalian-erythrocytes-associated-with-a-tick-reveal-ancient-piroplasms
#6
George Poinar
Ticks transmit a variety of pathogenic organisms to vertebrates, especially mammals. The fossil record of such associations is extremely rare. An engorged nymphal tick of the genus Ambylomma in Dominican amber was surrounded by erythrocytes from its mammalian host. Some of the exposed erythrocytes contained developmental stages of a hemoprotozoan resembling members of the Order Piroplasmida. The fossil piroplasm is described, its stages compared with those of extant piroplasms, and reasons provided why the mammalian host could have been a primate...
March 20, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28399211/transstadial-transmission-of-hepatozoon-canis-by-rhipicephalus-sanguineus-acari-ixodidae-in-field-conditions
#7
M Aktas, S Özübek
This study investigated possible transovarial and transstadial transmission of Hepatozoon canis by Rhipicephalus sanguineus (Latreille) ticks collected from naturally infected dogs in a municipal dog shelter and the grounds of the shelter. Four hundred sixty-five engorged nymphs were collected from 16 stray dogs that were found to be infected with H. canis by blood smear and PCR analyses and maintained in an incubator at 28 °C for moulting. Four hundred eighteen nymphs moulted to adults 14-16 d post collection...
March 7, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28399208/acquisition-of-borrelia-burgdorferi-infection-by-larval-ixodes-scapularis-acari-ixodidae-associated-with-engorgement-measures
#8
J Couret, M C Dyer, T N Mather, S Han, J I Tsao, R A Lebrun, H S Ginsberg
Measuring rates of acquisition of the Lyme disease pathogen, Borrelia burgdorferi sensu lato Johnson, Schmid, Hyde, Steigerwalt & Brenner, by the larval stage of Ixodes scapularis Say is a useful tool for xenodiagnoses of B. burgdorferi in vertebrate hosts. In the nymphal and adult stages of I. scapularis, the duration of attachment to hosts has been shown to predict both body engorgement during blood feeding and the timing of infection with B. burgdorferi. However, these relationships have not been established for the larval stage of I...
March 18, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28399200/bloodmeal-identification-in-field-collected-sand-flies-from-casa-branca-brazil-using-the-cytochrome-b-pcr-method
#9
G M L Carvalho, F D Rêgo, A Tanure, A C P Silva, T A Dias, G F Paz, J D Andrade Filho
PCR-based identification of vertebrate host bloodmeals has been performed on several vectors species with success. In the present study, we used a previously published PCR protocol followed by DNA sequencing based on primers designed from multiple alignments of the mitochondrial cytochrome b gene used to identify avian and mammalian hosts of various hematophagous vectors. The amplification of a fragment encoding a 359 bp sequence of the Cyt b gene yielded recognized amplification products in 192 female sand flies (53%), from a total of 362 females analyzed...
March 8, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28388327/biology-of-psorophora-albigenu-under-laboratory-conditions
#10
Jeronimo Alencar, Juliana Pacheco, Júlia Dos Santos Silva, Cecilia Ferreira Mello, Anthony Érico Guimarães
The present study investigates the effect of multiple immersions on Psorophora albigenu eggs and their development cycle under laboratory conditions. Engorged Ps. albigenu specimens were captured in January 2011 around the Transpantaneira Park Road, Mato Grosso, Brazil, using CO2-baited Centers for Disease Control and Prevention light traps. Psorophora albigenu eggs (n = 1274) were subjected to immersion, with a hatching rate between 49% and 73%. The Williams average showed a peak of 29% hatched eggs in the 3rd immersion; after 4-5 immersions, the effect of additional immersions was generally negligible...
March 2017: Journal of the American Mosquito Control Association
https://www.readbyqxmd.com/read/28385881/quantitative-measurement-of-csf-in-patients-with-spontaneous-intracranial-hypotension
#11
H-C Chen, P-L Chen, Y-H Tsai, C-H Chen, C C-C Chen, J-W Chai
BACKGROUND AND PURPOSE: CSF hypovolemia is a core feature of spontaneous intracranial hypotension. Spontaneous intracranial hypotension is characterized by orthostatic headache and radiologic manifestations, including CSF along the neural sleeves, diffuse pachymeningeal enhancement, and/or venous engorgement. However, these characteristics are only qualitative. Quantifying intraspinal CSF volumes could improve spontaneous intracranial hypotension diagnosis and evaluation of hypovolemic statuses in patients with spontaneous intracranial hypotension...
April 6, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28378989/study-of-the-non-parasitic-stage-in-ixodes-ricinus-after-co-feeding-with-dermacentor-reticulatus-in-three-infestations
#12
Katarzyna Bartosik, Alicja Buczek, Adam Borzęcki, Dorota Kulina
It was proved that transmission of some pathogens may occur between infected and uninfected ticks co-feeding on a host in the absence of systemic infection. The effect was studied of co-feeding of two different tick species Ixodes ricinus and Dermacentor reticulatus on the course of the non-parasitic stage. Species chosen for the experiment may share their habitats and co-infest animals in nature. In the course of the study the process of egg maturation, oviposition and larval hatching were investigated. In order to estimate if co-feeding influence can counteract host immunity, three subsequent infestations of rabbits were analyzed...
March 22, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28376843/picky-eaters-are-rare-dna-based-blood-meal-analysis-of-culicoides-diptera-ceratopogonidae-species-from-the-united-states
#13
Matthew W Hopken, Bonnie M Ryan, Kathryn P Huyvaert, Antoinette J Piaggio
BACKGROUND: Biting midges in the genus Culicoides (Diptera; Ceratopogonidae) have been implicated in the transmission of a number of parasites and highly pathogenic viruses. In North America, the complete transmission cycles of many of these pathogens need further elucidation. One way to increase our knowledge about the evolution and ecology of Culicoides species and the pathogens they transmit is to document the diversity of vertebrate hosts that Culicoides feed upon. Our objective was to identify the diversity of Culicoides hosts in the United States...
April 4, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28370810/the-effects-of-neem-oil-azadirachta-indica-a-juss-enriched-with-different-concentrations-of-azadirachtin-on-the-integument-of-semi-engorged-rhipicephalus-sanguineus-sensu-lato-acari-ixodidae-females
#14
José Ribamar Lima de Souza, Rafael Neodini Remedio, André Arnosti, Rusleyd Maria Magalhães de Abreu, Maria Izabel Camargo-Mathias
Several studies searching for methods to control Rhipicephalus sanguineus s.l., (dog tick) infestations have been developed aiming to minimize the damages caused by these ectoparasites to the hosts and the environment, which is harmed by the indiscriminate use of toxic acaricide products. In this scenario, neem oil has been used as a natural alternative against ticks, once this chemical has repellent properties and interferes in the growth regulation of these ectoparasites, inhibiting ecdysis. The present study evaluated the effects of azadirachtin-enriched neem oil on the integument of semi-engorged R...
March 29, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28362864/epidemiological-study-of-relapsing-fever-borreliae-detected-in-haemaphysalis-ticks-and-wild-animals-in-the-western-part-of-japan
#15
Kiwa Furuno, Kyunglee Lee, Yukie Itoh, Kazuo Suzuki, Kenzo Yonemitsu, Ryusei Kuwata, Hiroshi Shimoda, Masahisa Watarai, Ken Maeda, Ai Takano
The genus Borrelia comprises arthropod-borne bacteria, which are infectious agents in vertebrates. They are mainly transmitted by ixodid or argasid ticks. In Hokkaido, Japan, Borrelia spp. were found in deer and Haemaphysalis ticks between 2011 and 2013; however, the study was limited to a particular area. Therefore, in the present study, we conducted large-scale surveillance of ticks and wild animals in the western part of the main island of Japan. We collected 6,407 host-seeking ticks from two regions and 1,598 larvae obtained from 32 engorged female ticks and examined them to elucidate transovarial transmission...
2017: PloS One
https://www.readbyqxmd.com/read/28349021/evaluation-of-diagnostic-values-of-clinical-assessment-in-determining-the-maturation-of-arteriovenous-fistulas-for-satisfactory-hemodialysis
#16
Fereshteh Salimi, Shahab Shahabi, Hamid Talebzadeh, Amir Keshavarzian, Mohammad Pourfakharan, Mansour Safaei
BACKGROUND: Fistulas are the preferred permanent hemodialysis vascular access, but a significant obstacle to increasing their prevalence is the fistula's high "failure to mature" (FTM) rate. This study aimed to identify postoperative clinical characteristics that are predictive of fistula FTM. MATERIALS AND METHODS: This descriptive cross-sectional study was performed on 80 end-stage renal disease patients who referred to Al Zahra Hospital, Isfahan, for brachiocephalic fistula placement...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28347401/tracking-zoonotic-pathogens-using-blood-sucking-flies-as-flying-syringes
#17
Paul-Yannick Bitome-Essono, Benjamin Ollomo, Céline Arnathau, Patrick Durand, Nancy Diamella Moukodoum, Lauriane Yacka-Mouele, Alain-Prince Okouga, Larson Boundenga, Bertrand Mve-Ondo, Judicaël Obame-Nkoghe, Pierre Philippe Mbehang Nguema, Flobert Njiokou, Boris Kevin Makanga, Rémi Wattier, Diego Ayala, Francisco J Ayala, Francois Renaud, Virginie Rougeron, François Bretagnolle, Franck Prugnolle, Christophe Paupy
About 60% of emerging infectious diseases in humans are of zoonotic origin. Their increasing number requires the development of new methods for early detection and monitoring of infectious agents in wildlife. Here, we investigated whether blood meals from hematophagous flies could be used to identify the infectious agents circulating in wild vertebrates. To this aim, 1230 blood-engorged flies were caught in the forests of Gabon. Identified blood meals (30%) were from 20 vertebrate species including mammals, birds and reptiles...
March 28, 2017: ELife
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
#18
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
#19
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
#20
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
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