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https://www.readbyqxmd.com/read/27895910/proteomic-identification-of-cryostress-in-epididymal-spermatozoa
#1
Sung Jae Yoon, Md Saidur Rahman, Woo Sung Kwon, Do Yeal Ryu, Yoo Jin Park, Myung Geol Pang
BACKGROUND: Cryopreservation of epididymal spermatozoa is important in cases in which it is not possible to collect semen using normal methods, as the sudden death of an animal or a catastrophic injury. However, the freezing and thawing processes cause stress to spermatozoa, including cold shock, osmotic damage, and ice crystal formation, thereby reducing sperm quality. We assessed the motility (%), motion kinematics, capacitation status, and viability of spermatozoa using computer-assisted sperm analysis and Hoechst 33258/chlortetracycline fluorescence staining...
2016: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/27892924/the-pattern-recognition-receptor-core-of-solanaceae-detects-bacterial-cold-shock-protein
#2
Lei Wang, Markus Albert, Elias Einig, Ursula Fürst, Damaris Krust, Georg Felix
Plants and animals recognize microbial invaders by detecting microbe-associated molecular patterns (MAMPs) by cell surface receptors. Many plant species of the Solanaceae family detect the highly conserved nucleic acid binding motif RNP-1 of bacterial cold-shock proteins (CSPs), represented by the peptide csp22, as a MAMP. Here, we exploited the natural variation in csp22 perception observed between cultivated tomato (Solanum lycopersicum) and Solanum pennellii to map and identify the leucine-rich repeat (LRR) receptor kinase CORE (cold shock protein receptor) of tomato as the specific, high-affinity receptor site for csp22...
November 28, 2016: Nature Plants
https://www.readbyqxmd.com/read/27884304/a-remedy-for-kidney-disease-successfully-alters-the-cold-shock-protein-response-during%C3%A2-inflammation
#3
Sabine Brandt, Peter R Mertens
Kidneys undergoing acute inflammatory responses are characterized by cell infiltration and a cytokinergic milieu. The hazard resides in the perpetuation of inflammation and ensuing fibrosis. In this issue of Kidney International, Wang et al.(4) identify the cold shock Y-box binding protein-1 as the key orchestrator of cell infiltration in experimental tubulointerstitial nephritis following ureteral obstruction. Intriguingly, a small molecule previously designed to interfere with Y-box binding protein-1 interactions mediates an anti-inflammatory response and halts fibrogenesis...
December 2016: Kidney International
https://www.readbyqxmd.com/read/27880024/insect-cold-hardiness-the-role-of-mitogen-activated-protein-kinase-and-akt-signalling-in-freeze-avoiding-larvae-of-the-goldenrod-gall-moth-epiblema-scudderiana
#4
J Zhang, K B Storey
Larvae of the goldenrod gall moth, Epiblema scudderiana, use the freeze avoidance strategy of cold hardiness to survive the winter. Here we report that protein kinase-dependent signal transduction featuring mitogen-activated protein kinase (MAPK) signalling cascades (extracellular signal regulated kinase, c-jun N-terminal kinase and p38 MAPK pathways) and the Akt (also known as protein kinase B, or PKB) pathway could be integral parts of the development of cold hardiness by E. scudderiana. We used Luminex technology to assess the protein levels and phosphorylation status of key components and downstream targets of those pathways in larvae in response to low temperature acclimation...
November 23, 2016: Insect Molecular Biology
https://www.readbyqxmd.com/read/27862521/design-of-an-optimal-promoter-involved-in-the-heat-induced-transcriptional-pathway-in-arabidopsis-soybean-rice-and-maize
#5
Kyonoshin Maruyama, Takuya Ogata, Norihito Kanamori, Kyouko Yoshiwara, Shingo Goto, Yoshiharu Y Yamamoto, Yuko Tokoro, Chihiro Noda, Yuta Takaki, Hiroko Urawa, Satoshi Iuchi, Kaoru Urano, Takuhiro Yoshida, Tetsuya Sakurai, Mikiko Kojima, Hitoshi Sakakibara, Kazuo Shinozaki, Kazuko Yamaguchi-Shinozaki
Interactions between heat shock factor (HSF) and the heat shock response element (HSE) are important during the heat shock response (HSR) of flora and fauna. Moreover, plant HSFs that are involved in heat stress are also involved in abiotic stresses such as dehydration and cold as well as development, cell differentiation, and proliferation. Because the specific combination of HSFs and HSEs involved in plants under heat stress remains unclear, the mechanism of their interaction has not yet been utilized in plant molecular breeding for climate change...
November 15, 2016: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/27856567/transcriptional-and-translational-regulation-by-rna-thermometers-riboswitches-and-the-srna-dsra-in-escherichia-coli-o157-h7-sakai-under-combined-cold-and-osmotic-stress-adaptation
#6
Sarah Maria Hücker, Svenja Simon, Siegfried Scherer, Klaus Neuhaus
The enteric pathogen Escherichia coli O157:H7 Sakai (EHEC) is able to grow at lower temperatures compared to commensal E. coli Growth at environmental conditions displays complex challenges different to those in a host. EHEC was grown at 37°C (control) and at 14°C with 4% NaCl, a combination of cold and osmotic stress as present in the food chain. Comparison of RNAseq and RIBOseq data provided a snap shot of ongoing transcription and translation, differentiating transcriptional and post-transcriptional gene regulation, respectively...
November 16, 2016: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/27847412/expression-of-heat-shock-protein-72-mrna-in-relation-to-heart-rate-variability-of-sahiwal-and-karan-fries-in-different-temperature-humidity-indices
#7
Prava Mayengbam, T C Tolenkhomba, R C Upadhyay
AIM: To investigate the effect of temperature-humidity index (THI) on the expression pattern of heat-shock protein 72 (HSP72) mRNA of Sahiwal and Karan-Fries (KF) cattle in different THIs. MATERIALS AND METHODS: Five different periods of a year were selected based on combinations of Tmax/Tmin, viz., P1: <20°C/<10°C; P2: >20°C/<10°C, P3: <30°C/<15°C; P4: >35°C/<20°C, and P5: >35°C/>20°C. The THI was calculated from the records of temperature and relative humidity in different periods...
October 2016: Veterinary World
https://www.readbyqxmd.com/read/27846817/micrornas-regulate-gene-plasticity-during-cold-shock-in-zebrafish-larvae
#8
I-Chen Hung, Yu-Chuan Hsiao, H Sunny Sun, Tsung-Ming Chen, Shyh-Jye Lee
BACKGROUND: MicroRNAs (miRNAs) are critical regulators responding to acute environmental stresses in both plants and animals. By modulating gene expression, miRNAs either restore or reconstitute a new expression program to enhance cell tolerance to stresses. Cold shock is one of the stresses that can induce acute physiological responses and transcriptional changes in aquatic creatures. Previous genomic studies have revealed many cold-affected genes in fish larvae and adults, however, the role of miRNAs in acute cold response is still ambiguous...
November 15, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27833636/hydrogen-sulfide-a-signal-molecule-in-plant-cross-adaptation
#9
REVIEW
Zhong-Guang Li, Xiong Min, Zhi-Hao Zhou
For a long time, hydrogen sulfide (H2S) has been considered as merely a toxic by product of cell metabolism, but nowadays is emerging as a novel gaseous signal molecule, which participates in seed germination, plant growth and development, as well as the acquisition of stress tolerance including cross-adaptation in plants. Cross-adaptation, widely existing in nature, is the phenomenon in which plants expose to a moderate stress can induce the resistance to other stresses. The mechanism of cross-adaptation is involved in a complex signal network consisting of many second messengers such as Ca(2+), abscisic acid, hydrogen peroxide and nitric oxide, as well as their crosstalk...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27832122/inducing-cold-sensitivity-in-the-frigophilic-fly-drosophila-montana-by-rnai
#10
Felipe M Vigoder, Darren J Parker, Nicola Cook, Océane Tournière, Tanya Sneddon, Michael G Ritchie
Cold acclimation is a critical physiological adaptation for coping with seasonal cold. By increasing their cold tolerance individuals can remain active for longer at the onset of winter and can recover more quickly from a cold shock. In insects, despite many physiological studies, little is known about the genetic basis of cold acclimation. Recently, transcriptomic analyses in Drosophila virilis and D. montana revealed candidate genes for cold acclimation by identifying genes upregulated during exposure to cold...
2016: PloS One
https://www.readbyqxmd.com/read/27829710/early-norepinephrine-decreases-fluid-and-ventilatory-requirements-in-pediatric-vasodilatory-septic-shock
#11
Suchitra Ranjit, Rajeswari Natraj, Sathish Kumar Kandath, Niranjan Kissoon, Balasubramaniam Ramakrishnan, Paul E Marik
AIMS: We previously reported that vasodilatation was common in pediatric septic shock, regardless of whether they were warm or cold, providing a rationale for early norepinephrine (NE) to increase venous return (VR) and arterial tone. Our primary aim was to evaluate the effect of smaller fluid bolus plus early-NE versus the American College of Critical Care Medicine (ACCM) approach to more liberal fluid boluses and vasoactive-inotropic agents on fluid balance, shock resolution, ventilator support and mortality in children with septic shock...
October 2016: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/27801599/is-v%C3%AC-o2-supressed-during-nonapnoeic-facial-submersion
#12
Sarah Anderson, Maggie R Chamberlain, Samantha Musgrove, Antonia Partusch, Keagan R J Tice, David B Thorp
The mammalian dive response (DR) is described as oxygen-conserving based on measures of bradycardia, peripheral vasoconstriction, and decreased ventilation (V̇E). Using a model of simulated diving, this study examined the effect of nonapnoeic facial submersions (NAFS) on oxygen consumption (V̇O2). 19 participants performed four 2-min NAFS with 8 min of rest between each. Two submersions were performed in 5 °C water, 2 in 25 °C water. Heart rate (HR) was collected using chest strap monitors. A tube connected to the inspired port of a non-rebreathing valve allowed participants to breathe during facial submersion...
August 4, 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/27791340/molecular-characterization-of-three-hsp90-from-pieris-and-expression-patterns-in-response-to-cold-and-thermal-stress-in-summer-and-winter-diapause-of-pieris-melete
#13
Yue-Kun Wu, Chao Zou, Dao-Meng Fu, Wan-Na Zhang, Hai-Jun Xiao
Heat shock proteins (Hsps) have been linked to stresses and winter diapause in insects, but whether they are components of summer diapause is still unknown. In this study, cDNAs of Hsp90 from Pieris melete, Pieris rapae and Pieris canidia named PmHsp90, PrHsp90 and PcHsp90, respectivele, were cloned and sequenced. The deduced amino acid sequence consisted of 718 amino acid residues with a putative molecular mass of 82.6, 82.6, 82.7 kDa respectively. The amino acid sequences contained all of the five conserved signature motifs in the Hsp90 family and a bHLH protein folding activity region...
October 28, 2016: Insect Science
https://www.readbyqxmd.com/read/27790226/sterility-caused-by-floral-organ-degeneration-and-abiotic-stresses-in-arabidopsis-and-cereal-grains
#14
REVIEW
Ashley R Smith, Dazhong Zhao
Natural floral organ degeneration or abortion results in unisexual or fully sterile flowers, while abiotic stresses lead to sterility after initiation of floral reproductive organs. Since normal flower development is essential for plant sexual reproduction and crop yield, it is imperative to have a better understanding of plant sterility under regular and stress conditions. Here, we review the functions of ABC genes together with their downstream genes in floral organ degeneration and the formation of unisexual flowers in Arabidopsis and several agriculturally significant cereal grains...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27773730/molecular-cloning-of-orange-spotted-grouper-epinephelus-coioides-heat-shock-transcription-factor-1-isoforms-and-characterization-of-their-expressions-in-response-to-nodavirus
#15
Ting-Yu Wang, Young-Mao Chen, Tzong-Yueh Chen
Heat shock transcription factor 1 (HSF1) regulates heat shock proteins (HSPs), which assist in protein folding and inhibit protein denaturation following stress. HSF1 was firstly cloned from orange-spotted grouper and exists as two isoforms, one with (osgHSF1a) and one without (osgHSF1b) exon 11. Heat exposure increased the expression of osgHSF1b while cold exposure increased that of osgHSF1a. Both isoforms were mainly expressed in the brains, eyes, and fins. Expression of osgHSF1b was higher than osgHSF1a during development...
December 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27771082/application-of-propidium-monoazide-quantitative-real-time-pcr-to-quantify-the-viability-of-lactobacillus-delbrueckii-ssp-bulgaricus
#16
Yuyu Shao, Zhaoxia Wang, Qiuhua Bao, Heping Zhang
In this study, a combination of propidium monoazide (PMA) and quantitative real-time PCR (qPCR) was used to develop a method to determine the viability of cells of Lactobacillus delbrueckii ssp. bulgaricus ND02 (L. bulgaricus) that may have entered into a viable but nonculturable state. This can happen due to its susceptibility to cold shock during lyophilization and storage. Propidium monoazide concentration, PMA incubation time, and light exposure time were optimized to fully exploit the PMA-qPCR approach to accurately assess the total number of living L...
October 19, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27762322/purification-and-characterization-of-a-novel-cold-shock-protein-like-bacteriocin-synthesized-by-bacillus-thuringiensis
#17
Tianpei Huang, Xiaojuan Zhang, Jieru Pan, Xiaoyu Su, Xin Jin, Xiong Guan
Bacillus thuringiensis (Bt), one of the most successful biopesticides, may expand its potential by producing bacteriocins (thuricins). The aim of this study was to investigate the antimicrobial potential of a novel Bt bacteriocin, thuricin BtCspB, produced by Bt BRC-ZYR2. The results showed that this bacteriocin has a high similarity with cold-shock protein B (CspB). BtCspB lost its activity after proteinase K treatment; however it was active at 60 °C for 30 min and was stable in the pH range 5-7. The partial loss of activity after the treatments of lipase II and catalase were likely due to the change in BtCspB structure and the partial degradation of BtCspB, respectively...
October 20, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27762067/sumo-e3-ligases-gmsiz1a-and-gmsiz1b-regulate-vegetative-growth-in-soybean
#18
Bin Cai, Xiangxiong Kong, Chao Zhong, Suli Sun, Xiao Feng Zhou, Yin Hua Jin, Youning Wang, Xia Li, Zhendong Zhu, Jing Bo Jin
SIZ1 is a small ubiquitin-related modifier (SUMO) E3 ligase that mediates post-translational SUMO modification of target proteins and thereby regulates developmental processes and hormonal and environmental stress responses in Arabidopsis. However, the role of SUMO E3 ligases in crop plants is largely unknown. Here, we identified and characterized two Glycine max (soybean) SUMO E3 ligases, GmSIZ1a and GmSIZ1b. Expression of GmSIZ1a and GmSIZ1b was induced in response to salicylic acid (SA), heat, and dehydration treatment, but not in response to cold, ABA, and NaCl treatment...
October 20, 2016: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/27761137/selection-of-reliable-reference-genes-for-gene-expression-analysis-under-abiotic-stresses-in-the-desert-biomass-willow-salix-psammophila
#19
Jianbo Li, Huixia Jia, Xiaojiao Han, Jin Zhang, Pei Sun, Mengzhu Lu, Jianjun Hu
Salix psammophila is a desert shrub willow that has extraordinary adaptation to abiotic stresses and plays an important role in maintaining local ecosystems. Moreover, S. psammophila is regarded as a promising biomass feedstock because of its high biomass yields and short rotation coppice cycle. However, few suitable reference genes (RGs) for quantitative real-time polymerase chain reaction (qRT-PCR) constrain the study on normalization of gene expression in S. psammophila until now. Here, we investigated the expression stabilities of 14 candidate RGs across tissue types and under four abiotic stress treatments, including heat, cold, salt, and drought treatments...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27758716/fructose-1-6-bisphosphate-a-summary-of-its-cytoprotective-mechanism
#20
Norma Alva, Ronald Alva, Teresa Carbonell
In clinical and experimental settings, a great deal of effort is being made to protect cells and tissues against harmful conditions and to facilitate metabolic recovery following these insults. Much of the recent attention has focused on the protective role of a natural form of sugar, fructose 1,6-bisphosphate (F16bP). F16bP is a high-energy glycolytic intermediate that has been shown to exert a protective action in different cell types and tissues (including the brain, kidney, intestine, liver and heart) against various harmful conditions...
October 14, 2016: Current Medicinal Chemistry
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