BackgroundCanine parvovirus 2 (CPV-2) is one of the most common etiological agents that cause severe gastroenteritis in puppies. Early accurate diagnosis is important for infected dogs. In recent years, magnetic separation has become an efficient and useful tool for bioassays. In this study, polymerase chain reaction (PCR) combined with fluorescent lateral flow immunoassay (LFIA) based on magnetic purification assay was developed for the quantitative detection of CPV-2.ResultsThe optimum working reaction volume and reaction time for LFIA was 100 μL and 2 min, respectively. The PCR-LFIA assay only detected CPV-2, and did not show cross-detection of non-CPV strains. Experiments showed analytical sensitivity of 3 × 101 copies/μL and demonstrated the PCR-LFIA has a diagnostic agreement of 100% with conventional PCR on detection of clinical samples (22.6% positive, 14/62). Cutoff value is 146. The results were further verified by sequencing and BLAST software. The entire process from PCR step only takes ~ 80 min.ConclusionsThis approach provides an attractive platform for rapid and quantitative detection of CPV-2, indicating great promise as a convenient molecular detection tool to facilitate disease outbreak investigations and response timely.
This study aimed to assess the relationship between dietary sodium/potassium intake and cognition in elderly individuals with hypertension. We designed a cross-sectional study based on the 2011-2014 National Health and Nutrition Examination Survey (NHANES) 2011-2014. A multivariable-logistic regression analysis was performed to analyze the relationship between sodium/potassium intake and cognitive impairment.Restricted cubic spline (RCS) based on regression analysis to assess the nonlinear doseresponse relationship between dietary sodium intake and cognitive performance. Out of the 2276 participants included in this study, 1670 patients had hypertension. Compared with the lowest quartile of dietary sodium intake, the lowest weighted odds ratio of cognitive impairment in DSST was observed in Q4 (OR = 0.45, 0.29-0.70), and a similar trend was observed in AFT (OR = 0.34, 0.18-0.65). After adjusting the covariates, the lowest weighted multivariable-adjusted OR of cognitive impairment in DSST were also observed in Q4 (OR = 0.47, 0.26-0.84) compared with the lowest quartile of dietary sodium intake. The RCS results showed that dietary sodium intake was U-shaped and associated with the risk of cognitive impairment in the DSST (P non-linearity = 0.0067). In addition, no significant association was observed between dietary potassium intake and different dimensions of cognitive performance. In conclusion, excessively high and low low dietary sodium were associated with impairment of specific processing speed, sustained attention, and working memory for elderly patients with hypertension in the United States. However, no association was observed between dietary potassium intake and cognition.
Visit-to-visit variability (VVV) of blood pressure (BP) can facilitate in predicting future reduced ejection fractions cases. In the recent past, the prognostic significance of visitto-visit variability of BP has been examined widely in patients with a high risk of cardiovascular disease. The findings of numerous investigations have indicated that increased visit-to-visit variability of blood pressure can lead to better estimation or proper treatments that can minimize blood pressure variability and associated risks while enhancing clinical outcomes. However, inconsistent data of the visit-to-visit hypothesis in the post-hoc analysis have also been explored. Therefore, this review discusses recent analysis, background, and reports of the limitations of visit-to-visit blood pressure variability (VVV-BP) and the prognostic significance of visit-to-visit blood pressure variability in populations at high risk of reduced ejection fractions in predictions of future vascular diseases. The role of the antihypertensive drugs is highlighted while describing the clinical implications and future research directions.
To assess the prognostic impact of short-term blood pressure variability among heart failure patients with reduced ejection fraction.
Methods:The pooled endpoint of cardiac death, stroke, myocardial infarction, and hospitalization were examined in 156 HF subjects with reduced EF. All subjects had their blood pressure measured ambulatorily. Mean average real variability (ARV) 24-hour systolic BP (n=78; n=78) was used to classify individuals as having the lowest (0.77 mmHg) or the highest (0.77 mmHg) ARV.
Results:Throughout the follow-up period (7.6 ± 3.6 months), 107 events occurred, of which 29 (19%) were cardiac deaths, 18 (12%) myocardial infarction, 9 (6%) stroke, and 51(33%) hospitalizations. Patients with low 24-hour systolic ARV had significantly higher cardiac death and MI than those with high 24-hour systolic ARV. Risk of negative outcomes identified as an independent variable by logistic regression analysis; age (AOR 1.
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