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Stress recovery

Franz W R Hippler, Veronica L Dovis, Rodrigo M Boaretto, Jose A Quaggio, Ricardo A Azevedo, Lorraine E Williams, Dirceu Mattos
Antioxidant enzymatic responses in Citrus leaves under Cu-induced stress depends on rootstock genotypes. However, there is a lack of information about how woody plants recover growth capacity after exposure to elevated Cu and whether growth is affected by the redistribution of the metal to new vegetative parts and consequently whether photosynthesis is affected. Therefore, the biomass of plants and Cu concentrations in new leaf flushes were determined in young citrus trees grafted onto contrasting rootstocks [Swingle citrumelo (SW) and Rangpur lime (RL)]...
April 17, 2018: Physiologia Plantarum
Min Lin, Gonglin Hou, Ying Zhao, Ti-Fei Yuan
Chronic stress results in neurochemical, physiological, immune, molecular, cellular, and structural changes in the brain and often dampens the cognition. The hippocampus has been one major focus in studying the stress responsivity and neural mechanisms underlying depression. Both acute and chronic stress stimuli lead to dynamic changes in excitatory transmission in the hippocampus. The present study examined the potential effects of spontaneous recovery after chronic stress on spatial memory function and glutamatergic transmission in the hippocampus...
2018: Neural Plasticity
Andrés Sánchez C, Karin Papapietro V
The trauma involved in any surgical procedure, even if elective, causes a metabolic stress response characterized by postoperative insulin resistance (PIR). PIR is considered a surgical stress marker and is associated with increased morbidity and postoperative length of stay. PIR worsens when the patient is operated in a state of prolonged preoperative fasting or when postoperative feeding is delayed. The ERAS Protocols (Enhanced Recovery After Surgery) includes anesthetic, surgical, kinesiology, nutritional and nursing interventions aimed to modulate PIR...
November 2017: Revista Médica de Chile
Xiao Nan Yang, Xue-Mei Liu, JIan-He Fang, Xu Zhu, Xiu-Wei Yang, Xue-Rong Xiao, Jian-Feng Huang, Frank J Gonzalez, Fei Li
Nutmeg is a traditional Chinese medicine used to treat gastrointestinal diseases. Some reports indicated that nutmeg has hepatoprotective activity. In this study, a thioacetamide (TAA)-induced acute liver injury model in mice was used to explore the mechanism of the protective effects of nutmeg extract (NME), including its major bioactive component myrislignan. The results indicated that NME could effectively protect TAA-induced liver damage as assessed by recovery of increased serum liver transaminases, decrease hepatic oxidative stress and lower hepatic inflammation...
April 17, 2018: Journal of Proteome Research
Liu-Hua Wang, Ren-Fei Zhu, Cheng Gao, Shou-Lin Wang, Li-Zong Shen
AIM: To provide an updated assessment of the safety and efficacy of enhanced recovery after surgery (ERAS) protocols in elective gastric cancer (GC) surgery. METHODS: PubMed, Medline, EMBASE, World Health Organization International Trial Register, and Cochrane Library were searched up to June 2017 for all available randomized controlled trials (RCTs) comparing ERAS protocols and standard care (SC) in GC surgery. Thirteen RCTs, with a total of 1092 participants, were analyzed in this study, of whom 545 underwent ERAS protocols and 547 received SC treatment...
April 14, 2018: World Journal of Gastroenterology: WJG
Katrina L Counihan
Increasing oil development around Alaska and other Arctic regions elevates the risk for another oil spill. Dispersants are used to mitigate the impact of an oil spill by accelerating natural degradation processes, but the reduced hydrophobicity of dispersed oil may increase its bioavailability to marine organisms. There is limited research on the effect of dispersed oil on cold water species and ecosystems. Therefore, spiked exposure tests were conducted with bay mussels (Mytilus trossulus) in seawater with non-dispersed oil, Corexit 9500 and oil dispersed with different concentrations of Corexit 9500...
April 7, 2018: Aquatic Toxicology
Kenichi Shibata, Kohei Obase, Kiminori Itoh, Takashi Amemiya
Starvation is one of the most common forms of stress experienced in the wild life. Such conditions associate the other forms of stress such as acid, heat, oxidation, and so on. Organisms acclimate to such stresses and acquire the stress tolerances, which often trade-off their growth rates. To investigate whether starvation and the associated stresses may cause the changes in the growth and the central carbon metabolism, we stock-cultured the yeast S. cerevisiae on YNB agar plates up to a month and subsequently cultured in YNB broth...
April 13, 2018: Journal of Biotechnology
Ziyin Liu, Xinyu Zhao, Xiayun Jiang, Shuming Zou
Although hypoxia-inducible factor (HIF) 1α and 2α function as master regulators of the transcriptional response to hypoxia, the function of HIF3α and its responses to hypoxic stress remain unclear in teleost fish. Here, we characterized the HIF3α cDNA in hypoxia-sensitive blunt snout bream (Megalobrama amblycephala), with 3059 bp length, consisting of an open reading frame (ORF) encoding 643 amino acid residues. Blunt snout bream HIF3α mRNA was stably expressed during stages of embryonic development and in adult tissues...
April 13, 2018: Biochemical and Biophysical Research Communications
Mengyu Feng, Taiping Zhang, Yupei Zhao
Enhanced recovery after surgery is a multimodal perioperative strategy according to the evidence-based medicine and multidisciplinary collaboration, aiming to improve the restoration of functional capacity after surgery by reducing surgical stress, optimal control of pain, early oral diet and early mobilization. Compared with other sub-specialty in general surgery, pancreatic surgery is characterized by complex disease, highly difficult procedure and more postoperative complications. Accordingly, pancreatic surgery shares a slow development in enhanced recovery after surgery...
May 25, 2017: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
Yi Yu, Dongping Wang, Hui Li, Yujie Liu, Zhao Xiang, Junlin Wu, Xiaoli Jing
Hypoxia is a serious stress state. The nervous system is less tolerant to hypoxia, and cell death due to hypoxia is irreversible. With the incidence of cardiovascular disease gradually increasing, the sudden cardiac death rate is additionally increasing. Although cardiopulmonary resuscitation (CPR) is an important development, recovery is frequently poor. In a successful recovery population, ~40% of the population was in a vegetative state or subsequently succumbed to their condition, and ~20% had brain damage...
April 11, 2018: Molecular Medicine Reports
Masahiko Kemmochi, Shigeru Sasaki, Shoichi Ichimura
Background: We noticed that most of active sports children with low back pain (LBP) have muscle tightness around the pelvis and reduced trunk flexibility. Abnormalities in short-time inversion recovery (STIR) images on magnetic resonance imaging (MRI) can show stress fracture. Therefore, we investigated the associations among LBP, trunk flexibility, and lumbar stress fractures. Methods: A total of 130 patients under the age of 18 years complained of LBP were investigated in STIR MRI images...
March 2018: Journal of Orthopaedics
Andreas Martinsson, Petter Oest, Maj-Britt Wiborg, Öyvind Reitan, J Gustav Smith
OBJECTIVES: Left ventricular ejection fraction (EF) and N-terminal pro-B-type natriuretic peptide (NT-proBNP) are important surrogate markers of cardiac function and wall stress. Randomized trials of heart failure (HF) have shown improvements in survival in patients with reduced EF (<40%, HFrEF) but not with preserved EF (≥50%, HFpEF) or mid-range EF (40-49%, HFmrEF). Limited information is available on the trajectory of EF in contemporary heart failure management programs (HFMPs)...
April 14, 2018: Scandinavian Cardiovascular Journal: SCJ
R Vather, G O'Grady, A Y Lin, P Du, C I Wells, D Rowbotham, J Arkwright, L K Cheng, P G Dinning, I P Bissett
BACKGROUND: Recovery after colonic surgery is invariably delayed by disturbed gut motility. It is commonly assumed that colonic motility becomes quiescent after surgery, but this hypothesis has not been evaluated rigorously. This study quantified colonic motility through the early postoperative period using high-resolution colonic manometry. METHODS: Fibre-optic colonic manometry was performed continuously before, during and after surgery in the left colon and rectum of patients undergoing right hemicolectomy, and in healthy controls...
April 14, 2018: British Journal of Surgery
Priti Gupta, Austin B Bigley, Melissa Markofski, Mitzi Laughlin, Emily C LaVoy
Natural Killer cells are cytotoxic lymphocytes that recognize and eliminate tumor cells. Exercise enhances NK cell cytotoxic activity (NKCA), yet the underlying mechanisms are not fully understood. Exercise-induced shifts in NK-cell subsets has been proposed as one mechanism. Alternatively, exercise alters stress hormone and cytokine levels, which are also known to affect NKCA. AIM: Determine the role(s) of exercise-induced shifts in the proportions of NK-cell subsets found in the blood, and changes in serum IL-2, IL-6, IL-12, IFN-γ, TNF-α and cortisol, on exercise-induced changes in NKCA...
April 12, 2018: Brain, Behavior, and Immunity
Brigitte Mukarunyana, Jack van de Vossenberg, Jules B van Lier, Peter van der Steen
Removal of nitrogen from wastewater without using electricity consuming aerators was previously observed in photo-bioreactors with a mixed algal-bacterial biomass. Algammox is the particular process based on algae, ammonium oxidizing organisms and anammox bacteria. In this research the activity of anammox bacteria in such an oxygen-producing environment was tested, as well as the effect of short-duration increase in dissolved oxygen (DO) to values potentially inhibiting anammox activity. Sequencing batch photo-bioreactors were fed with settled domestic wastewater enriched with ammonium (200mgNH4 + -N/L) and exposed to light within the photosynthetic active range with intensity of about 500μmol/m2 ·s...
April 10, 2018: Science of the Total Environment
Peter J Ferrandi, Brandon G Fico, Michael Whitehurst, Michael C Zourdos, Fanchen Bao, Katelyn M Dodge, Alexandra A Rodriguez, Gabriel Pena, Chun-Jung Huang
AIMS: Obesity is associated with lipid aggregation in adipocytes and macrophage infiltration, leading to increased oxidative stress and inflammation. Increased cell-free DNA (cfDNA) concentrations have been observed in clinical conditions of systemic inflammation. While the beneficial effects of regular physical activity on the release of circulating cfDNA still remain unknown, acute intense exercise has been shown to increase inflammatory cytokines and cfDNA concentrations in normal-weight individuals...
April 10, 2018: Life Sciences
Jiaxin Quan, Shanshan Song, Kadir Abdulrashid, Yongfu Chai, Ming Yue, Xiao Liu
The negative effects of enhanced ultraviolet-B (UV-B) on plant growth and development have been reported with many species. Considering the ability of jasmonic acid (JA) to improve plant stress tolerance, the hypothesis that JA pretreatment could alleviate the adverse effects of UV-B on S. baicalensis was tested in this study with photosynthesis and growth characteristics. The results showed that UV-B or JA alone both induced photosynthesis inhibition and decreased biomass in stems and leaves. However, the photosynthetic reduction caused by increased UV-B was mainly related to the effect of nonstomatal-limitation, while that of JA was a stomatal-limitation effect...
April 13, 2018: International Journal of Molecular Sciences
Sergio Ammendola, Rossana Cocchiola, Mariangela Lopreiato, Laura Politi, Roberto Scandurra, Anna Maria Giusti, Anna Scotto d'Abusco
OBJECTIVE: The aim of the present study was to investigate how different extravirgin olive oils (EVOOs), obtained by blending Olea europea cultivars, could influence the cell growth, the response to inflammatory stimuli, and oxidative stress in a culture of the osteosarcoma cell line Saos-2. METHODS: Three different extravirgin olive oils were physicochemically characterized, determining the free acidity, the oxidation status, the polyphenols content, and the antioxidative activity...
April 13, 2018: Journal of the American College of Nutrition
Yongkang Bai, Jiwen Zhang, Xin Chen
A multiresponsive shape memory composite was prepared by incorporating polyaniline (PAn) fibers into polyvinyl alcohol (PVA), where in situ polymerization assisted by surfactant was used to homogeneously disperse PAn fibers in a PVA matrix. The PAn fibers not only increased physical cross-linking points in the system but also served as photothermal conversion reagents, resulting in excellent water-, thermal-, and near-infrared (NIR) light-induced shape memory properties of the composites, where their light-induced shape recovery ratio and speed could be enhanced via the increase of PAn loading percentage and light power density...
April 16, 2018: ACS Applied Materials & Interfaces
Elena Canzi, Rosa Rosnati, Laurie C Miller
BACKGROUND: Following initial adversities, most internationally adopted children arrive with significant growth delays. Post-placement recovery has been widely documented, but research about risk or protective factors is still limited. Even less is known about the relationship between growth recovery and the quality of the family environment. METHODS: 28 children in 26 adoptive families were involved in this longitudinal study. A comprehensive evaluation (including anthropometry, cognitive assessment [using the Leiter International Performance Scale-Revised], and completion by both parents of the Parenting Stress Index - Short Form) was done at arrival of the child, and 1 year later...
April 12, 2018: Minerva Pediatrica
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