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The PSP-related pattern obtained confirmed the regions described above. At the individual level, the PSP-related pattern showed optimal diagnostic accuracy to distinguish between PSP and healthy controls (sensitivity, 80.4%; specificity, 96.9%)s and between PSP and PD (sensitivity, 80.4%; specificity, 90.7%). Moreover, PSP-Richardson's syndrome and PSP-parkinsonian variant patients showed significantly more PSP-related pattern expression than PD patients and healthy controls. The glucose metabolism assessed by fluorodeoxyglucose PET is a useful and reproducible supportive diagnostic tool for PSP-Richardson's syndrome and PSP-parkinsonian variant. © 2020 International Parkinson and Movement Disorder Society.
The need for class I and II studies on the efficacy of liberatory maneuvers in the treatment of lateral canal benign paroxysmal positional vertigo (LC-BPPV) motivated the present double-blind randomized trial on the short-term efficacy of the forced prolonged position (FPP).
Double-blind, randomized controlled trial.
Two hundred twenty-one patients with unilateral LC-BPPV met the inclusion criteria for a multicentric study. Patients were randomly assigned to treatment by FPP (116 subjects) or sham treatment (105 subjects). Subjects were followed up at 24 hours with the supine roll test by blinded examiners.
Among the sample, 67.4% and 32.6% of the patients showed respectively geotropic and apogeotropic variant of LC-BPPV. At the 24-hour follow-up, the effectiveness of FFP compared to the sham maneuver was, respectively, 57.8% versus 12.4% (P < .0001) in the total sample, 76.9% versus 11.3% (P < .0001) in the geotropic variant group, and 60.5% versus 17.6% (P = .0003) in the apogeotropic variant group, including resolution or transformation to geotropic variant.
FPP proved highly effective compared to the sham maneuver. The present class 2 study of the efficacy of the FPP changes the level of recommendation of the method for treating LC-BPPV into a strong one.
2 Laryngoscope, 2020.
2 Laryngoscope, 2020.Root vulnerability to cavitation is challenging to measure and under-represented in current datasets. This gap limits the precision of models used to predict plant responses to drought because roots comprise the critical interface between plant and soil. In this study, we measured vulnerability to drought-induced cavitation in woody roots and stems of five tree species (Acacia aneura, Cedrus deodara, Eucalyptus crebra, Eucalytus saligna, and Quercus palustris) with a wide range of xylem anatomies. X-ray microtomography was used to visualize the accumulation of xylem embolism in stems and roots of intact plants that were naturally dehydrated to varying levels of water stress. Vulnerability to cavitation, defined as the water potential causing a 50% loss of hydraulic function (P50), varied broadly among the species (-4.51 MPa to -11.93 MPa in stems and -3.13 MPa to -9.64 MPa in roots). The P50 of roots and stems was significantly related across species, with species that had more vulnerable stems also having more vulnerable roots. While there was strong convergence in root and stem vulnerability to cavitation, the P50 of roots was significantly higher than the P50 of stems in three species. However, the difference in root and stem vulnerability for these species was small; between 1% and 31% of stem P50. Thus, while some differences existed between organs, roots were not dramatically more vulnerable to embolism than stems, and the differences observed were less than those reported in previous studies. Further study is required to evaluate the vulnerability across root orders and to extend these conclusions to a greater number of species and xylem functional types.Water stress (WS) is a primary trigger reducing grain number per spike (GNs) in wheat during the reproductive period. The response of plant organs and the interactions between organs under stress conditions remain unclear at molecular and physiological levels during this period. RNA-seq results showed that spike and two-internode under the spike (TIS) had 970 and 382 differential expression genes, respectively, as WS occurred at the young microspore stage. ABA signal transduction genes were down-regulated by WS in the both organs, and the expression level in the TIS was higher than that in spike. Further quantitative analysis revealed a reduction in sucrose in the both organs accompanied by increased cell wall invertase (CWIN) and sucrosesucrose 1-fructosyl-transferase (1-SST). learn more and fructan were increased in the TIS but decreased in the spike. The ABA concentration was increased in both organs. In addition, ABA concentration showed a significantly positive correlation with 1-SST and CWIN in TIS. Collectively, these results suggest that WS induced the conversion of sucrose to hexose by CWIN and fructan by 1-SST in the TIS linked with a higher down-expression of ABA signal transduction related-genes, which leads to deficient sucrose supply to the spike and then the decrease in GNs.
We determined how the vaginal and penile microbiomes contribute to HSV-2 serostatus within sexual partnerships.
Microbiomes were characterized in cervicovaginal lavage and penile meatal swab through high-throughput 16s ribosomal RNA gene amplicon sequencing. HSV-2 antibody was detected in serum. #link# We modeled vaginal and penile taxa and covariates contributing to HSV-2 status in women and men using bivariate probit.
Among 231 couples, HSV-2 was detected in 78 (33.8%) both the man and woman, 52 (22.5%) woman only, 27 (11.7%) man only, 74 (32.0%) neither. Women were median age 22 years, 10.9% with HIV, 21.4% with Bacterial vaginosis (BV). Men were median age 26 years, 11.8% with HIV, 55.0% circumcised. In analysis adjusted for sociodemographics and BV, enrichment of vaginal Gardnerella vaginalis and Lactobacillus iners was associated with increased likelihood of HSV-2 in women and HSV-2 in male partners. Penile taxa (including Ureaplasma and Aerococcus) were associated with HSV-2 in women.
We demonstrate that penile taxa are associated with HSV-2 in female partners, and vaginal taxa are associated with HSV-2 in male partners. Our findings suggest that couples-level joint consideration of genital microbiome and STI or related outcomes could lead to new avenues for prevention.
We demonstrate that penile taxa are associated with HSV-2 in female partners, and vaginal taxa are associated with HSV-2 in male partners. Our findings suggest that couples-level joint consideration of genital microbiome and STI or related outcomes could lead to new avenues for prevention.
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