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Dogan Bruce postete ein Update vor 1 Jahr, 9 Monaten
The diverse root-associated fungal communities in bromeliads may enhance plant fitness in both stressful and nutrient-poor environments and may give more flexibility to the plants to adapt to changing environmental conditions.
Food protein-induced enterocolitis syndrome (FPIES) is a non-IgE-mediated food allergy causing severe acute gastrointestinal symptoms and lethargy, mainly affecting infants and young children. There are geographic variations in its clinical features. selleck chemicals This study aimed to describe the clinical characteristics and management of FPIES in Swedish children.
The study included children who presented with acute FPIES during 2008-2017. All Swedish pediatric departments (n=32) were invited to report their known patients. Data were collected through chart reviews and interviews with parents.
Eighteen pediatric departments contributed, and 113 patients were included. Most had a family history of atopy (74%), and 51% had an atopic disease. Common trigger foods were cow’s milk (26%), fish (25%), oat (22%), and rice (8%). Most patients (85%) reacted to a single food. The median age at first reaction was 3.9months for cow’s milk and 6.0months for other foods (p<0.001, range 1.0month to 9years). Repetitive vomiting (100%), lethargy (86%), and pallor (61%) were common symptoms; 40% had diarrhea. Sixty percent visited the emergency department, and 27% of all patients were hospitalized. Most patients were diagnosed clinically (81%). Specific IgE for the trigger food was positive in 4/89 tested patients (4%), and skin prick test for the trigger food was positive in 1/53 tested patients (2%).
In our Swedish study of 113 children, cow’s milk, fish, and oat were the commonest trigger foods. Most patients reacted to a single food, and IgE sensitization was rare.
In our Swedish study of 113 children, cow’s milk, fish, and oat were the commonest trigger foods. Most patients reacted to a single food, and IgE sensitization was rare.Abiotic stresses, such as heat, drought, salinity, low temperature, and heavy metals, inhibit plant growth and reduce crop productivity. Abiotic stresses are becoming increasingly extreme worldwide due to the ongoing deterioration of the global climate and the increase in agrochemical utilization and industrialization. Plants grown in fields are affected by one or more abiotic stresses. The consequent stress response of plants induces reactive oxygen species (ROS), which are then used as signaling molecules to activate stress-tolerance mechanism. However, under extreme stress conditions, ROS are overproduced and cause oxidative damage to plants. In such conditions, plants produce anthocyanins after ROS signaling via the transcription of anthocyanin biosynthesis genes. These anthocyanins are then utilized in antioxidant activities by scavenging excess ROS for their sustainability. In this review, we discuss the physiological, biochemical, and molecular mechanisms underlying abiotic stress-induced anthocyanins in plants and their role in abiotic stress tolerance. In addition, we highlight the current progress in the development of anthocyanin-enriched transgenic plants and their ability to increase abiotic stress tolerance. Overall, this review provides valuable information that increases our understanding of the mechanisms by which anthocyanins respond to abiotic stress and protect plants against it. This review also provides practical guidance for plant biologists who are engineering stress-tolerant crops using anthocyanin biosynthesis or regulatory genes.It is uncertain whether gastrointestinal (GI) infection caused by viral and bacterial pathogens may predispose to gastrointestinal acute Graft-versus-host disease (aGvHD-GI) in allogeneic hematopoietic stem cell transplant recipients (allo-HSCT). We investigated the potential association between detection of enteropathogenic viruses or bacteria in stools and subsequent occurrence of aGvHD-GI in a cohort of 121 allo-HSCT patients. Eighty-six out of 121 patients (71%) had acute diarrhea and underwent screening for primary GI pathogens by molecular diagnostic methods. One or more GI pathogens were detected in 27 out of the 86 patients with diarrhea (31.3%). Specifically, Clostridioides difficile was found in 16 patients (18.6%), enteropathogenic viruses in 11 patients (12.7%) (Astrovirus, n = 4; Norovirus, n = 2; Sapovirus, n = 2; Adenovirus, n = 2; and Rotavirus, n = 1), and Campylobacter spp. in two patients (2.3%). Thirty patients were diagnosed with all grade aGvHD-GI by histopathology. Detection of primary GI pathogens was achieved in 12 out of 30 patients (Clostridium difficile, n = 5; enteric viruses, n = 8; Campylobacter spp., n = 1) who either subsequently developed (n = 9) or previously had (n = 3) grade I-IV IaGvHD (n = 9). Neither the detection of these microorganisms (all combined), enteric viruses, nor C. difficile was significantly associated with subsequent aGvHD-GI development in Cox models (hazard ratio [HR] = 1.11, p = .80; HR = 1.64, p = .62; HR = 0.75, p = .64, respectively). Analogous results were obtained when grade II-IV aGvHD-GI was selected as the clinical outcome. In summary, data in the current study did not support an association between GI infection and subsequent occurrence of aGvHD-GI in an unselected cohort of allo-HSCT recipients.
The optimal timing of supplemental parenteral nutrition (PN) use in the pediatric intensive care unit (ICU) is unclear. We aimed to describe patterns of PN use in the ICU and the association between the timing of PN initiation and macronutrient delivery and anthropometry.
We enrolled patients (aged <18 years) with an ICU stay >3 days were started on PN in the ICU. Initiation within 48 hours of admission was deemed as early, and duration <5 days was deemed as short. We used multivariable analysis to examine the association between PN timing and macronutrient delivery adequacy (percentage of the prescribed target that was actually delivered) and weight-for-age z-score (WAZ) over hospital stay.
Ninety-five patients were included. Median (interquartile range [IQR]) time to initiate PN was 4 (1, 6) days, and in 33%, PN was initiated early. Median (IQR) PN duration was 8 (5, 14) days, and in 16.8%, duration was short. Median (IQR) adequacies for total energy and protein delivery were 55% (40, 74) and 72% (44, 81) in the early PN group compared with 29% (3, 50) and 31% (4, 47), respectively, in the late PN group (P < .

