An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
... Allelochemicals sustained-release microspheres (ACs-SMs) exhibited great inhibition effect on algae, however, few studies have focused on ACs-SMs toxicity on invertebrate. In this study, the effects of single high-concentration ACs (15 mg/L, SH-ACs), repeated low-concentration ACs (3 × 5 mg/L, RL-ACs) and ACs-SMs containing 15 mg/L ACs exposure on the ingestion, incorporation, and digestion of Dap ...
cell death; death, etc ; Animalia; cell fusion; fungi; lifestyle; meiotic drive; microbial genetics; Show all 8 Subjects
Abstract:
... Death is an important part of an organism’s existence and also marks the end of life. On a cellular level, death involves the execution of complex processes, which can be classified into different types depending on their characteristics. Despite their “simple” lifestyle, fungi carry out highly specialized and sophisticated mechanisms to regulate the way their cells die, and the pathways underlyin ...
cell death; death, etc ; Alzheimer disease; amyloid; brain; genes; neurons; pathogenesis; patients; peptides; Show all 10 Subjects
Abstract:
... Humanin (HN) is an endogenous peptide factor and known as a member of mitochondrial-derived peptides. We first found the gene encoding this novel 24-residue peptide in a brain of an Alzheimer's disease (AD) patient as an antagonizing factor against neuronal cell death induced by AD-associated insults.This review presents an overview of HN actions in AD-related conditions among its wide range of ac ...
death domain receptors; programmed cell death, etc ; feathers; immunomodulation; virulence; virus replication; viruses; Show all 7 Subjects
Abstract:
... Vaccines against Marek’s disease can protect chickens against clinical disease; however, infected chickens continue to propagate the Marek’s disease virus (MDV) in feather follicles and can shed the virus into the environment. Therefore, the present study investigated if MDV could induce an immunoregulatory microenvironment in feathers of chickens and whether vaccines can overcome the immune evasi ...
... Luminescent Cu@Cu₂S nanozymes have been prepared by a one-pot method, displaying high peroxidase-like and oxidase-like activity. Fluorescence images show that these nanozymes adhere to the surface of the bacterial cell and scanning electron microscopy reveals that the nanomaterials cause folding and collapse of the bacterial surface, resulting in bacterial death. ...
... The histopathological features of the atrioventricular (AV) conduction system of nine cats with high-grade atrioventricular block (H-AVB) were compared with those of 22 cases of third-degree atrioventricular block (3-AVB). All nine H-AVB cats had experienced syncopal attacks of variable severity and had been diagnosed electrocardiographically. The AVB, which was permanent in all cases, had been ob ...
... Louis Joblot published one of the first manuals of microscopy in 1718, just a few years before both he and Leeuwenhoek died. It contained Joblot's microscope designs and his extensive observations on microorganisms including experiments on spontaneous generation. Joblot's work and his observations have often been overlooked, misdated, and denigrated. This is due to attention given to a few apparen ...
death; fetal death, etc ; abortion (animals); immunization; infancy; meta-analysis; risk; systematic review; vaccines; Show all 9 Subjects
Abstract:
... Several countries have introduced maternal immunisation with pertussis vaccine to provide protection against pertussis in early infancy. There is increasing interest in non-specific effects of vaccines including that non-live vaccines may enhance susceptibility to non-targeted infections in females. Some studies have shown increased risk of chorioamnionitis among women receiving pertussis vaccine ...
... Objective—To describe three dogs and two cats diagnosed with a cannot intubate, cannot oxygenate (CICO) condition, and discuss the appropriateness and timing of emergency front-of-neck airway access (eFONA). The authors aim to increase awareness of CICO events and effective management strategies, which may result in faster airway access and improve patient outcomes. Case series summary—Three dogs ...
... Neuroscience has made strides in recent years allowing us insight into the workings of the brain – from the molecular to the regional anatomy. These insights have given researchers an advantage in seeking novel therapies for neurological disorders, specifically stroke. Yet despite these discoveries, many aspects of stroke remain poorly understood – specifically post-stroke recovery. This review ar ...
death; fetal death, etc ; average daily gain; birth weight; ewes; hoggets; litter size; mortality; necropsy; pregnancy; reproductive performance; Show all 11 Subjects
Abstract:
... The reproductive performance of ewe hoggets is poorer than that of mature-age ewes due to production of fewer lambs with poorer survival. Scant data are available on the risk factors for, and causes of, the mortality for lambs born to ewe hoggets, the impact of ewe deaths on lamb loss, and the causes of death for lambs born to ewe hoggets vs. mature-age ewes lambing in the same circumstances. In t ...
death; fetal death, etc ; education; environment; human health; indoor air pollution; land use; pregnancy; questionnaires; regression analysis; risk; Ethiopia; Show all 12 Subjects
Abstract:
... Air pollution poses a threat to human health, with pregnant women and their developing fetuses being particularly vulnerable. A high dual burden of ambient and indoor air pollution exposure has been identified in Ethiopia, but studies investigating their effects on adverse birth outcomes are currently lacking. This study explores the association between ambient air pollution (NOX and NO₂) and indo ...
cell death; death, etc ; Eucalyptus; Leptocybe invasa; eggs; hybrids; metabolism; metabolites; necrosis; oviposition; pest management; putrescine; pyruvic acid; sugars; Show all 14 Subjects
Abstract:
... BACKGROUND: Here, we investigated changes in primary metabolism and cell death around oviposition sites in two hybrid clones of Eucalyptus with different degrees of resistance to Leptocybe invasa Fisher & La Salle (Hymenoptera: Eulophidae), as well as tolerance to water deficiency. RESULTS: We showed that apices of the resistant clone with oviposition had a higher content of amino acids, organic a ...
... Pancreatic ductal adenocarcinoma is a devastating cancer and is the fourth-leading cause of cancer death in the USA. Zinc is abundant in the pancreas, but its role in pancreatic cancer remains elusive. The aim of this study is to determine effects of zinc chelators in pancreatic cancer. Pdx1Cʳᵉ and LSL-Krasᴳ¹²ᴰ mice expressing an oncogenic mutation of KRAS develop pancreatic intraepithelial neopla ...
death, etc ; Arisaema; females; new species; pollination; Show all 5 Subjects
Abstract:
... Female individuals in the genus Arisaema are the only plants known to imprison their pollinators permanently. Their lethal pollination system has long attracted the interest of evolutionary biologists and naturalists. Nonetheless, the mechanisms of how Arisaema plants lure their victims to the brink of death are only just being unveiled. Here, I briefly review the unique reproductive biology of th ...
death, etc ; clinical nutrition; males; multivariate analysis; Show all 4 Subjects
Abstract:
... Late complications associated with percutaneous endoscopic gastrostomy (PEG) tube in patients are common occurrences. We aimed to identify risk factors associated with PEG-related late complications. Patients who underwent PEG exchange were retrospectively collected from electronic medical records between January 2015 and November 2020. Medical records were reviewed longitudinally from the PEG rep ...
death, etc ; adsorption; carbon monoxide; consciousness; oxygen; Show all 5 Subjects
Abstract:
... Carbon monoxide (CO) poisoning can easily occur in industrial and domestic settings, causing headaches, loss of consciousness, or death from overexposure. Commercially available CO gas sensors consume high power (typically 38 mW), whereas low-power gas sensors using nanostructured materials with catalysts lack reliability and uniformity. A low-power (1.8 mW @ 392 °C), sensitive, selective, reliabl ...
death, etc ; biodiversity conservation; ecosystems; wildlife management; Show all 4 Subjects
Abstract:
... Mitigation translocation is a subgroup of conservation translocation, categorized by a crisis‐responsive time frame and the immediate goal of relocating individuals threatened with death. However, the relative successes of conservation translocations with longer time frames and broader metapopulation‐ and ecosystem‐level considerations have been used to justify the continued implementation of miti ...
... Plant intracellular immune receptors known as NLR (nucleotide‐binding leucine‐rich repeat) proteins confer immunity and cause cell death. Plant NLR proteins that directly or indirectly recognize pathogen effector proteins to initiate immune signalling are regarded as sensor NLRs. Some NLR protein families function downstream of sensor NLRs to transduce immune signalling and are known as helper NLR ...