Decision letter for "Susceptible host availability modulates climate effects on dengue dynamics"

2020 ◽  
Author(s):  
Nicole Nova ◽  
Ethan R. Deyle ◽  
Marta S. Shocket ◽  
Andrew J. MacDonald ◽  
Marissa L. Childs ◽  
...  

2013 ◽  
Vol 16 (6) ◽  
pp. 336
Author(s):  
Marko Boban ◽  
Viktor Persic ◽  
Zeljko Jovanovic ◽  
Niksa Drinkovic ◽  
Milan Milosevic ◽  
...  

<p><b>Background:</b> Current knowledge on the pervasiveness of increased nutritional risk in cardiovascular diseases is limited. Our aim was to analyze the characteristics of nutritional risk screening in patients scheduled for rehabilitation after heart surgery. Prevalence and extent of nutritional risk were studied in connection with patients' characteristics and seasonal climate effects on weight loss dynamics.</p><p><b>Methods:</b> The cohort included 65 consecutive patients with an age range of 25-84 years, 2-6 months after surgical treatment for ischemic or valvular heart disease. Nutritional risk screening was appraised using a standardized NRS-2002 questionnaire. Groups were analyzed according to a timeline of rehabilitation according to the "cold" and "warm" seasons of the moderate Mediterranean climate in Opatija, Croatia.</p><p><b>Results:</b> Increased nutritional risk scores (NRS-2002) of >3 were found in 96% of studied patients. Mean NRS-2002 of patients was 5.0 � 1.0, with a percentage weight loss history of 11.7% � 2.2% (4.6-19.0). Risk was found to be more pronounced during the warmer season, with NRS-2002 scores of 5.3 � 0.7 versus 4.8 � 1.1 (<i>P</i> = 0.136) and greater loss of weight of 13.0% � 3.2% versus 10.6% � 3% (<i>P</i> = 0.005), respectively. Increased nutritional risk correlated significantly with creatinine concentrations (rho = 0.359; <i>P</i> = 0.034 versus 0.584; <i>P</i> = 0.001, respectively). Significant discordance in correlations was found between NRS-2002 and the decrease in left ventricle systolic function (rho correlation coefficient [rho-cc] = -0.428; <i>P</i> = 0.009), the increase in glucose concentrations (cc = 0.600; <i>P</i> < 0.001), and the decrease in erythrocyte counts (cc = -0.520; <i>P</i> = 0.001) during the colder season.</p><p><b>Conclusion:</b> Increased nutritional risk was found to be frequently expressed in the course of rehabilitation after heart surgery. Although seasonal climate effects influenced the weight loss dynamics, the impact on reproducibility of NRS-2002 was clinically less important. Further studies on the connection of nutritional risk with composited end points might offer improvements in overall quality of treatment.</p>


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
James S. Clark ◽  
Robert Andrus ◽  
Melaine Aubry-Kientz ◽  
Yves Bergeron ◽  
Michal Bogdziewicz ◽  
...  

AbstractIndirect climate effects on tree fecundity that come through variation in size and growth (climate-condition interactions) are not currently part of models used to predict future forests. Trends in species abundances predicted from meta-analyses and species distribution models will be misleading if they depend on the conditions of individuals. Here we find from a synthesis of tree species in North America that climate-condition interactions dominate responses through two pathways, i) effects of growth that depend on climate, and ii) effects of climate that depend on tree size. Because tree fecundity first increases and then declines with size, climate change that stimulates growth promotes a shift of small trees to more fecund sizes, but the opposite can be true for large sizes. Change the depresses growth also affects fecundity. We find a biogeographic divide, with these interactions reducing fecundity in the West and increasing it in the East. Continental-scale responses of these forests are thus driven largely by indirect effects, recommending management for climate change that considers multiple demographic rates.


GCB Bioenergy ◽  
2021 ◽  
Author(s):  
AL Cowie ◽  
G Berndes ◽  
NS Bentsen ◽  
Miguel Brandão ◽  
F Cherubini ◽  
...  

2021 ◽  
Vol 9 (4) ◽  
pp. 762
Author(s):  
Lucia Henrici De Angelis ◽  
Noemi Poerio ◽  
Vincenzo Di Pilato ◽  
Federica De Santis ◽  
Alberto Antonelli ◽  
...  

Phage therapy is now reconsidered with interest in the treatment of bacterial infections. A major piece of information for this application is the definition of the molecular targets exploited by phages to infect bacteria. Here, the genetic basis of resistance to the lytic phage φBO1E by its susceptible host Klebsiella pneumoniae KKBO-1 has been investigated. KKBO-1 phage-resistant mutants were obtained by infection at high multiplicity. One mutant, designated BO-FR-1, was selected for subsequent experiments, including virulence assessment in a Galleria mellonella infection model and characterization by whole-genome sequencing. Infection with BO-FR-1 was associated with a significantly lower mortality when compared to that of the parental strain. The BO-FR-1 genome differed from KKBO-1 by a single nonsense mutation into the wbaP gene, which encodes a glycosyltransferase involved in the first step of the biosynthesis of the capsular polysaccharide (CPS). Phage susceptibility was restored when BO-FR-1 was complemented with the constitutive wbaP gene. Our results demonstrated that φBO1E infects KKBO-1 targeting the bacterial CPS. Interestingly, BO-FR-1 was less virulent than the parental strain, suggesting that in the context of the interplay among phage, bacterial pathogen and host, the emergence of phage resistance may be beneficial for the host.


2021 ◽  
Vol 25 (2) ◽  
pp. 229-241
Author(s):  
S. Sundar ◽  
Daniel Paiva Silva ◽  
Fabio de Oliveira Roque ◽  
Juliana Simião-Ferreira ◽  
Jani Heino

2021 ◽  
pp. 111030
Author(s):  
Jianming Yang ◽  
Huijun Wu ◽  
Xinhua Xu ◽  
Gongsheng Huang ◽  
Jian Cen ◽  
...  

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