Curr Res Parasitol Vector Borne Dis
December 2021
An assay series was performed to assess the contact and spatial efficacy of the Personal Insect Repellent Kit (PIRK) against three species of ixodid ticks. The PIRK, a portable, passive device comprised of an inert physical substrate incorporated with the active ingredient (AI) transfluthrin (TF), has demonstrated spatial efficacy against flying insects, including three species of mosquitoes, sand flies and stable flies. The device is the only TF end-use product registered with the EPA.
View Article and Find Full Text PDFIn legumes, pod shattering occurs when mature pods dehisce along the sutures, and detachment of the valves promotes seed dispersal. In Phaseolus vulgaris (L)., the major locus qPD5.
View Article and Find Full Text PDFTransbound Emerg Dis
September 2020
African swine fever (ASF) is one of the most complex and lethally haemorrhagic viral diseases of swine, affecting all breeds and ages of pigs. In the absence of ASF vaccines, reliable laboratory diagnosis and restricted biosecurity are critical for disease prevention and control. A detection of ASF-specific antibodies in an unvaccinated pig is a good marker for the diagnosis of ASF.
View Article and Find Full Text PDFAmong the structural proteins that compose the virion of African swine fever virus (ASFV), p30 is one of the most immunogenic proteins and is produced during early stage of ASFV infection. These two characteristics make p30 a good target for diagnostic assays to detect ASFV infection. In this study, we describe a panel of newly generated p30-specific monoclonal antibodies (mAbs).
View Article and Find Full Text PDFThe complete or partial loss of shattering ability occurred independently during the domestication of several crops. Therefore, the study of this trait can provide an understanding of the link between phenotypic and molecular convergent evolution. The genetic dissection of 'pod shattering' in Phaseolus vulgaris is achieved here using a population of introgression lines and next-generation sequencing techniques.
View Article and Find Full Text PDFIn this study, an alphavirus vector platform was used to deliver replicon particles (RPs) expressing African swine fever virus (ASFV) antigens to swine. Alphavirus RPs expressing ASFV p30 (RP-30), p54 (RP-54) or pHA-72 (RP-sHA-p72) antigens were constructed and tested for expression in Vero cells and for immunogenicity in pigs. RP-30 showed the highest expression in Vero cells and was the most immunogenic in pigs, followed by RP-54 and RP-sHA-p72.
View Article and Find Full Text PDFProtein p72 is the major capsid protein of African swine fever virus (ASFV) and is an important target for test and vaccine development. Monoclonal antibodies (mAbs) were prepared against a recombinant antigenic fragment, from amino acid (aa) 20-303, expressed in baculovirus. A total of 29 mAbs were recovered and tested by immunofluorescent antibody (IFA) staining on ASFV Lisbon-infected Vero cells.
View Article and Find Full Text PDFHere, we aim to provide a comprehensive and up-to-date overview of the most significant outcomes in the literature regarding the origin of genus, the geographical distribution of the wild species, the domestication process, and the wide spread out of the centers of origin. can be considered as a unique model for the study of crop evolution, and in particular, for an understanding of the convergent phenotypic evolution that occurred under domestication. The almost unique situation that characterizes the genus is that five of its ∼70 species have been domesticated (i.
View Article and Find Full Text PDFSeed shattering in crops is a key domestication trait due to its relevance for seed dispersal, yield, and fundamental questions in evolution (e.g., convergent evolution).
View Article and Find Full Text PDFAfrican swine fever is a highly contagious, often fatal disease of swine for which there is no vaccine or other curative treatment. The macrophage marker, CD163, is a putative receptor for African swine fever virus (ASFV). Pigs possessing a complete knockout of CD163 on macrophages were inoculated with Georgia 2007/1, a genotype 2 isolate.
View Article and Find Full Text PDFTwo experiments were conducted to determine the persistence and tissue distribution of serotypes 1 and 2 of infectious bursal disease virus (IBDV) in specific-pathogen-free and vaccinated turkeys. In Experiment 1, three groups of 2-wk-old turkey poults, including a negative control group, were used. In groups 1 and 2, 13 poults in each group were challenged with either serotype 1 (STC) or serotype 2 (OH) strains using an inoculum of 10(4) 50% embryo infectious dose (EID50)/0.
View Article and Find Full Text PDFThis study was initiated to determine the persistence, distribution, and quantification of infectious bursal disease virus (IBDV) in lymphoid and nonlymphoid tissues of specific-pathogen-free (SPF) and commercial broiler chickens. Two serotype 1 strains, STC classic and IN variant, were independently used in the experiments. Five separate experiments were conducted using 2- and 4-wk-old SPF chickens, 2- and 4-wk-old in ovo-vaccinated commercial broilers, and 2-wk-old commercial broilers having maternally derived anti-IBDV antibodies.
View Article and Find Full Text PDFTurkey coronavirus (TCoV) infection causes enteritis in turkeys of varying ages with high mortality in young birds. In older birds, field evidence indicates the possible involvement of TCoV in egg-production drops in turkey hens. However, no experimental studies have been conducted to demonstrate TCoV pathogenesis in turkey hens and its effect on reproductive performance.
View Article and Find Full Text PDFBackground: Both the membrane-bound and soluble forms of human leukocyte antigen-G (HLA-G) molecules exhibit a multitude of immunomodulatory properties that can potentially obviate or delay graft rejection. The 14-base pair (14-bp) polymorphism in the 3'-untranslated region of the HLA-G gene is thought to have a role in soluble HLA-G (sHLA-G) expression.
Methods: In this study, we retrospectively investigated a large cohort of 418 kidney transplant recipients with the aim of establishing whether the HLA-G 14-bp insertion/deletion polymorphism could serve as an effective genetic risk marker for acute and/or chronic deterioration of transplanted kidney function.
Infectious bursal disease (IBD) is a highly contagious disease of chickens which leads to immunosuppression. In our previous study it was demonstrated that, possibly, CD4(+) and CD8(+) T cells may employ perforin and granzyme-A pathway for the clearance of IBDV-infected bursal cells. In this study, we evaluated the cytotoxic T cell responses involving two independently functioning but complementary mechanisms: Fas-Fas ligand and perforin-granzyme pathways in IBDV-infected chickens.
View Article and Find Full Text PDFFecal specimens, including swabs and litter extracts, collected from chickens, domestic ducks, turkeys, and Canadian geese were tested using degenerate primers targeting regions encoding for conserved amino acid motifs (YGDD and DY(T/S)(R/K/G)WDST) in calicivirus RNA-dependent RNA polymerases. Similar motifs are also present in other RNA viruses. Two fecal specimens and 18 litter extracts collected from chickens and turkeys yielded RT-PCR products.
View Article and Find Full Text PDFInfectious bursal disease (IBD) is an important immunosuppressive disease of chickens. The causative agent, infectious bursal disease virus (IBDV), consists of two serotypes, 1 and 2. Serotype 1 consists of classic IBDV (cIBDV) and variant IBDV (vIBDV).
View Article and Find Full Text PDFInfectious bursal disease (IBD) is an economically important immunosuppressive disease of chickens. The IBD virus (IBDV) actively replicates in B cells and causes severe bursal damage. Generally, T cells are refractory to infection with IBDV but are known to promote virus clearance.
View Article and Find Full Text PDFThis study compared 3-year health-related quality-of-life (HRQL) outcomes of sirolimus (SRL)-treated kidney transplant patients after elimination of cyclosporine (CsA) with patients continuing on a combined CsA and SRL regimen. A randomized, multi-country, open-label, clinical trial was performed. 430 kidney transplant patients were randomly assigned to SRL+corticosteroids (ST) (n = 215) or SRL+CsA+ST (n = 215) therapy after an initial 3-month period of combined SRL+CsA+ST treatment.
View Article and Find Full Text PDFSirolimus (SRL) has a concentration-related effect on hematopoiesis. In this study, 430 renal transplant recipients were randomized (1:1) 3 months post-transplantation to continue SRL-cyclosporine (CsA)-steroids (ST) or to have CsA withdrawn (SRL-ST). Over 5 years, on therapy calculated glomerular filtration rate (GFR), hematological indices, erythropoietin (EPO) use, and rates of mild, moderate, and severe anemia were determined.
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