Results 191 to 200 of about 16,136 (211)

The defensin gene family expansion in the tick Ixodes scapularis

Developmental & Comparative Immunology, 2011
Ixodid ticks transmit a variety of pathogens by blood feeding. Here, we report computational identification of two multigene families of defensin-like peptides (DLPs) in the Ixodes scapularis genome, one corresponding to scapularisin and the other named scasin.
Yanbing Wang, Shunyi Zhu
openaire   +2 more sources

Passive Tick Surveillance: Exploring Spatiotemporal Associations of Borrelia burgdorferi (Spirochaetales: Spirochaetaceae), Babesia microti (Piroplasmida: Babesiidae), and Anaplasma phagocytophilum (Rickettsiales: Anaplasmataceae) Infection in Ixodes scapularis (Acari: Ixodidae).

Vector Borne and Zoonotic Diseases, 2020
Ixodes scapularis transmits a group of pathogens, including Borrelia burgdorferi, Babesia microti, and Anaplasma phagocytophilum, the causative agents for Lyme disease, babesiosis, and anaplasmosis, respectively. I.
E. Little, Goudarz Molaei
semanticscholar   +1 more source

Survival of Ixodes scapularis (Acari: Ixodidae) Exposed to Cold

Journal of Medical Entomology, 1996
The cold hardiness of Ixodes scapularis Say unengorged larvae, engorged larvae, unengorged nymphs, engorged nymphs, and unengorged adults was evaluated. Ticks were exposed to cold for 2 or 8 h at a range of temperatures. Likelihood ratio tests and LT50 estimates were used to evaluate cold hardiness.
John K. VanDyk, Wayne A. Rowley, Kenneth B. Platt, David M. Bartholomew   +3 more
openaire   +3 more sources

New records of immature Ixodes scapularis from Mississippi

Journal of Vector Ecology, 2006
The role of immature Ixodes scapularis in the ecology of Lyme disease is well documented (Piesman 2002). In the northeastern and midwestern U.S., nymphal I. scapularis are abundant and are the most important vectors of the etiologic agent, Borrelia burgdorferi. This apparently is not the case in the southern U.S.
Jerome Goddard, Joseph Piesman
openaire   +3 more sources

Vitellogenin and Ecdysteroid Titers in Ixodes scapularis during Vitellogenesis

The Journal of Parasitology, 1997
Ecdysteroids are the only hormones unequivocally identified thus far in ticks. We found a positive correlation between ecdysteroid concentration and vitellogenin synthesis in female Ixodes scapularis. Vitellogenin (Vg) synthetic activity was measured by an in vitro assay for Vg, involving incubations of the fat body with 35S-methionine and ...
X. X. Zhu, James Am, Oliver Jh
openaire   +3 more sources

Evidence for genetic hybridization betweenIxodes scapularisandIxodes cookei

Canadian Journal of Zoology, 2017
Ixodes scapularis Say, 1821 (the black-legged tick) is becoming established in Canada. The northwards expansion of I. scapularis leads to contact between I. scapularis and Ixodes cookei Packard, 1869, a well-established tick species in Eastern Canada. Examination of I. cookei and I.
Patterson, James W., Duncan, Anna M., McIntyre, Kelsey C., Lloyd, Vett K.   +3 more
openaire   +2 more sources

Prevalence of Infection and Co-Infection and Presence of Rickettsial Endosymbionts in Ixodes Scapularis (Acari: Ixodidae) in Connecticut, USA.

Journal of Parasitology, 2020
Ixodes scapularis is currently known to transmit 7 pathogens responsible for Lyme disease, anaplasmosis, babesiosis, tick-borne relapsing fever, ehrlichiosis, and Powassan encephalitis.
D. Pokutnaya, Goudarz Molaei, D. Weinberger, C. Vossbrinck, Alexander J Diaz   +4 more
semanticscholar   +1 more source

A high-quality Ixodes scapularis genome advances tick science

Nature Genetics, 2023
Sandip De, S. Kingan, C. Kitsou, D. Portik, S. D. Foor, Julia C Frederick, V. Rana, Nicole S. Paulat, D. Ray, Yan Wang, T. Glenn, U. Pal   +11 more
semanticscholar   +1 more source

Xenodiagnosis Using Ixodes scapularis Larval Ticks in Humans

2017
Xenodiagnosis is the use of a natural vector to detect the presence of an organism, and xenodiagnosis using Ixodes ticks has long been used by entomologists in Lyme disease research to provide evidence of the host's infectious status with Borrelia burgdorferi.
Siu-Ping Turk, Adriana Marques, Carla Williams   +2 more
openaire   +3 more sources

Fine-scale determinants of the spatiotemporal distribution of Ixodes scapularis in Quebec (Canada).

Ticks and Tick-borne Diseases, 2021
Ariane Dumas, C. Bouchard, L. R. Lindsay, N. Ogden, P. Leighton   +4 more
semanticscholar   +1 more source