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Zhong-Guo Shan, Ke-Xin Zhu, Fang-Yi Chen, Jie Liu, Bei Chen, Kun Qiao, Hui Peng, Ke-Jian Wang
A new gene homologous to the reported antimicrobial peptide (AMP) hyastatin from Hyas araneus was screened in the SSH library constructed from the hemocytes of Scylla paramamosain, and named SpHyastatin. In vivo study showed that SpHyastatin was predominantly expressed in hemocytes of S. paramamosain. With the challenge of either Vibrio parahaemolyticus or lipopolysaccharide (LPS), SpHyastatin showed a positive response, meaning that it was probably involved in the immune reaction against bacterial infection in vivo...
October 14, 2016: Fish & Shellfish Immunology
Yu Gu, Yanfang Liu, Sanjie Cao, Xiaobo Huang, Zhicai Zuo, Shumin Yu, Junliang Deng, Chunbang Ding, Ming Yuan, Liuhong Shen, Rui Wu, Yiping Wen, Zhihua Ren, Qin Zhao, Guangneng Peng, Zhijun Zhong, Chengdong Wang, Xiaoping Ma
Cladosporium cladosporioides is a ubiquitous fungus, causing infections in plants, humans, and animals. Suppression subtractive hybridization (SSH) and quantitative real-time PCR (qRT-PCR) were used in this study to identify differences in gene expression between two C. cladosporioides strains, the highly virulent Z20 strain and the lowly virulent Zt strain. A total of 61 unigenes from the forward library and 42 from the reverse library were identified. Gene ontology (GO) analysis showed that these genes were involved in various biological processes, cellular components and molecular functions...
October 12, 2016: Microbial Pathogenesis
Prabhaker Yadav, Ratnesh K Tripathi, Rajeev K Singh, Vindhya Mohindra
During the investigation of genes involved in the hypoxia tolerance, novel transcript, Replication Termination Factor 2 homologue (RTF2h), was found to be differentially expressed in brain of Clarias magur (previous name, C. batrachus) whose function was still undefined. Thus, present study was aimed to examine the transcriptional response of novel RTF2h gene, for its possible involvement in hypoxia tolerance in C. magur. Novel transcripts expressed under hypoxic stress were identified from ESTs obtained from SSH libraries of C...
October 14, 2016: Molecular Biology Reports
Vindhya Mohindra, Ratnesh Kumar Tripathi, Akanksha Singh, Ruchi Patangia, Rajeev Kumar Singh, Kuldeep Kumar Lal, Joy Krushna Jena
The Indian catfish, Clarias magur is an air breathing fish, inhabitant of aquatic bodies characterized by low dissolved oxygen levels. It is exposed to hypoxic conditions in its natural habitat. Thus, it can be useful model to study the mechanism of hypoxia stress tolerance. In C. magur, molecular processes facilitating its adaptation to hypoxia stress remain largely unexplored, in part due to unavailability of genomic resources. The suppression subtractive hybridization technique (SSH) was employed to compare the differential expression of transcripts under experimental hypoxic conditions, to that of normoxic conditions...
October 11, 2016: Fish & Shellfish Immunology
Haiyan Li, Ann C Smigocki
Sugar beet root maggot (SBRM, Tetanops myopaeformis von Röder) is a major but poorly understood insect pest of sugar beet (Beta vulgaris L.). The molecular mechanisms underlying plant defense responses are well documented, however, little information is available about complementary mechanisms for insect adaptive responses to overcome host resistance. To date, no studies have been published on SBRM gene expression profiling. Suppressive subtractive hybridization (SSH) generated more than 300 SBRM ESTs differentially expressed in the interaction of the pest with a moderately resistant (F1016) and a susceptible (F1010) sugar beet line...
October 3, 2016: Insect Science
Bhusan Gurung, Pardeep K Bhardwaj, Narayan C Talukdar
In the present study, suppression subtractive hybridization (SSH) strategy was used to identify rare and differentially expressed transcripts in leaf and rhizome tissues of Panax sokpayensis. Out of 1102 randomly picked clones, 513 and 374 high quality expressed sequenced tags (ESTs) were generated from leaf and rhizome subtractive libraries, respectively. Out of them, 64.92 % ESTs from leaf and 69.26 % ESTs from rhizome SSH libraries were assembled into different functional categories, while others were of unknown function...
September 1, 2016: Functional & Integrative Genomics
Suneha Goswami, Ranjeet R Kumar, Kavita Dubey, Jyoti P Singh, Sachidanand Tiwari, Ashok Kumar, Shuchi Smita, Dwijesh C Mishra, Sanjeev Kumar, Monendra Grover, Jasdeep C Padaria, Yugal K Kala, Gyanendra P Singh, Himanshu Pathak, Viswanathan Chinnusamy, Anil Rai, Shelly Praveen, Raj D Rai
Heat stress is one of the major problems in agriculturally important cereal crops, especially wheat. Here, we have constructed a subtracted cDNA library from the endosperm of HS-treated (42°C for 2 h) wheat cv. HD2985 by suppression subtractive hybridization (SSH). We identified ~550 recombinant clones ranging from 200 to 500 bp with an average size of 300 bp. Sanger's sequencing was performed with 205 positive clones to generate the differentially expressed sequence tags (ESTs). Most of the ESTs were observed to be localized on the long arm of chromosome 2A and associated with heat stress tolerance and metabolic pathways...
2016: Frontiers in Plant Science
Deqing Peng, Yongjian Zhu
BACKGROUND: Chronic subdural haematoma (CSDH) is one of the most common types of intracranial haematoma, and often occurs in older people. Burr-hole craniostomy, which is an evacuation through one or two burr holes drilled over the site of the haematoma, has been widely accepted as the most effective way to manage CSDH. Recurrences are a major problem and need reoperation, sometimes repeatedly. OBJECTIVES: To assess the effects and safety of the use of external drains versus no drains after burr-hole evacuation for the treatment of CSDH in adults...
2016: Cochrane Database of Systematic Reviews
Luming Yao, Yina Jiang, Xinxin Lu, Biao Wang, Pei Zhou, Tianlong Wu
Few regulators for drought tolerance have been identified in Lablab purpureus which is a multipurpose leguminous crop. The transcription factor MYB is involved in regulatory networks in response to abiotic and biotic stresses in plants. A novel R2R3-MYB factor in L. purpureus has been identified. An suppression subtraction hybridization (SSH) library was constructed using root tissues of L. purpureus MEIDOU 2012 from well-watered and water-stress treatments that were subjected to drought stress for 10 days...
October 2016: Molecular Biology Reports
Yuxin Cao, Jinling Zhai, Qichao Wang, Hongmei Yuan, Xi Huang
HbNAC1 is a transcription factor in rubber plants whose expression is induced by dehydration, leading to latex biosynthesis. Laticifer is a special tissue in Hevea brasiliensis where natural rubber is biosynthesized and accumulated. In young stems of epicormic shoots, the differentiation of secondary laticifers can be induced by wounding, which can be prevented when the wounding site is wrapped. Using this system, differentially expressed genes were screened by suppression subtractive hybridization (SSH) and macroarray analyses...
August 20, 2016: Planta
Adélaïde Lerebours, Emma C Chapman, Michael J Sweet, Michelle R Heupel, Jeanette M Rotchell
A high prevalence of skin pigmented lesions of 15% was recently reported in coral trout Plectropomus leopardus, a commercially important marine fish, inhabiting the Great Barrier Reef. Herein, fish were sampled at two offshore sites, characterised by high and low lesion prevalence. A transcriptomic approach using the suppressive subtractive hybridisation (SSH) method was used to analyse the differentially expressed genes between lesion and normal skin samples. Transcriptional changes of 14 genes were observed in lesion samples relative to normal skin samples...
September 2016: Marine Environmental Research
S Tentori, C Lanzani, L Citterio, E Brioni, M Simonini, L Zagato, E Messaggio, P Manunta
OBJECTIVE: The genetic basis of salt sensitive (SSH) hypertension consists in a very complex network of dynamic interaction among genetic-environmental factors that may change with aging. The existence of a regulatory genetic network (RGN) as triggering mechanism of SSH has been already postulated for Adducin-Endogenous Ouabain-Na+-K+ ATPase (ADD-EO-NKA) system. The observation that Klotho (KL) is a newly discovered aging suppressor gene can directly affect the Na+, K+-ATPase activity opening new possible interaction with the RGN...
September 2016: Journal of Hypertension
Girish Kumar, Nancy D Denslow
In this review, we present an overview of transcriptomic responses to chemical exposures in a variety of fish species. We have discussed the use of several molecular approaches such as northern blotting, differential display reverse transcription-polymerase chain reaction (DDRT-PCR), suppression subtractive hybridization (SSH), real time quantitative PCR (RT-qPCR), microarrays, and next-generation sequencing (NGS) for measuring gene expression. These techniques have been mainly used to measure the toxic effects of single compounds or simple mixtures in laboratory conditions...
July 28, 2016: Reviews of Environmental Contamination and Toxicology
Sunil Kumar, Prasad Venkata, Yonggyun Kim
Histone H4, a nucleosome subunit in eukaryotes, plays crucial roles in DNA package and regulation of gene expression through covalent modification. A viral histone H4 encoded in Cotesia plutellae bracovirus (CpBV), a polydnavirus, is called CpBV-H4. It is highly homologous to other histone H4 proteins except 38 extra amino acid residues in the N terminus. CpBV-H4 can form octamer with other histone subunits and alter host gene expression. In this study, CpBV-H4 was transiently expressed in a natural host (Plutella xylostella) and its suppressive activity on host gene expression was evaluated by suppressive subtractive hybridization (SSH) technique...
July 20, 2016: Journal of General Virology
Kada Klouche, Jean Paul Cristol, Julie Devin, Vincent Gilles, Nils Kuster, Romaric Larcher, Laurent Amigues, Philippe Corne, Olivier Jonquet, Anne Marie Dupuy
BACKGROUND: The soluble CD14 subtype, Presepsin, appears to be an accurate sepsis diagnostic marker, but data from intensive care units (ICUs) are scarce. This study was conducted to evaluate the diagnostic and prognostic value of Presepsin in ICU patients with severe sepsis (SS), septic shock (SSh) and severe community-acquired pneumonia (sCAP). METHODS: Presepsin and procalcitonin (PCT) levels were determined for patients at admission to ICU. Four groups have been differentiated: (1) absence or (2) presence of systemic inflammatory response syndrome, (3) SS or (4) SSh; and 2 groups, among the patients admitted for acute respiratory failure: absence or presence of sCAP...
December 2016: Annals of Intensive Care
Qiu-Ning Liu, Zhao-Zhe Xin, Xin-Yue Chai, Sen-Hao Jiang, Chao-Feng Li, Dai-Zhen Zhang, Chun-Lin Zhou, Bo-Ping Tang
The yellow catfish, Pelteobagrus fulvidraco (Siluriformes: Bagridae) is an economically important fish in China. However, genomic research and resources on this species are largely unavailable and still in infancy. In the present study, we constructed a cDNA library following poly I:C injection to screen for immune response genes in the spleens of P. fulvidraco using suppression subtractive hybridization (SSH). A total of 420 putative expressed sequence tag (EST) clones were identified at 24 h post-injection, which contain 103 genes consisting of 25 immune response genes, 12 cytoskeleton genes, 7 cell cycle and apoptosis genes, 7 respiration and energy metabolism genes, 7 transport genes, 26 metabolism genes, 10 stress response genes, 9 translational regulation genes, and 71 unknown genes...
September 2016: Fish & Shellfish Immunology
Mark Linden, Carol Hawley, Bronagh Blackwood, Jonathan Evans, Vicki Anderson, Conall O'Rourke
BACKGROUND: The use of technology in healthcare settings is on the increase and may represent a cost-effective means of delivering rehabilitation. Reductions in treatment time, and delivery in the home, are also thought to be benefits of this approach. Children and adolescents with brain injury often experience deficits in memory and executive functioning that can negatively affect their school work, social lives, and future occupations. Effective interventions that can be delivered at home, without the need for high-cost clinical involvement, could provide a means to address a current lack of provision...
2016: Cochrane Database of Systematic Reviews
Su Min Kim, Eseul Baek, Ki Hyun Ryu, Sun Hee Choi
Cymbidium mosaic virus (CymMV)-induced expressed sequence tag (EST) clones from Chenopodium amaranticolor were identified. CymMV was mechanically inoculated onto C. amaranticolor, and local lesion symptoms were observed. Inoculated leaves were collected on serial days post inoculation (dpi) to identify activated or suppressed genes. mRNA isolation and suppression subtractive hybridization (SSH) were then performed to identify differentially expressed genes related to the local lesion response. Fifty-three ESTs, including genes related to defense and stress responses (e...
September 2, 2016: Virus Research
Rosalba Calvini, Giorgia Foca, Alessandro Ulrici
Hyperspectral sensors represent a powerful tool for chemical mapping of solid-state samples, since they provide spectral information localized in the image domain in very short times and without the need of sample pretreatment. However, due to the large data size of each hyperspectral image, data dimensionality reduction (DR) is necessary in order to develop hyperspectral sensors for real-time monitoring of large sets of samples with different characteristics. In particular, in this work, we focused on DR methods to convert the three-dimensional data array corresponding to each hyperspectral image into a one-dimensional signal (1D-DR), which retains spectral and/or spatial information...
October 2016: Analytical and Bioanalytical Chemistry
Yoji Yamamoto, J Adam Luckenbach, Graham Young, Penny Swanson
Molecular processes that either regulate ovarian atresia or are consequences of atresia are poorly understood in teleost fishes. We hypothesized that feed restriction that perturbs normal ovarian growth and induces follicular atresia would alter ovarian gene expression patterns. Previtellogenic, two-year old coho salmon (Oncorhynchus kisutch) were subjected to prolonged fasting to induce atresia or maintained on a normal feeding schedule that would promote continued ovarian development. To identify genes that were specifically up- or down-regulated during oocyte growth in healthy, growing fish compared to fasted fish, reciprocal suppression subtractive hybridization (SSH) cDNA libraries were generated using ovaries from fed and fasted animals...
November 2016: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
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