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https://www.readbyqxmd.com/read/27914417/sparse-spatial-spectral-estimation-in-directional-noise-environment
#1
Long Yang, Yixin Yang, Yong Wang
White Gaussian noise assumption is widely used in the field of spatial spectral estimation. But, the practical ambient noise usually does not satisfy this assumption, which may seriously affect the performance of direction of arrival estimation. This letter presents a linear noise model that can provide a more complete description of the practical ambient noise field, and then proposes a directional noise field sparse spectrum fitting (DN-SpSF) algorithm to estimate the spatial spectral in a directional noise field...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27911492/rolling-circle-amplification-with-chemically-modified-nucleoside-triphosphates
#2
Marcel Hollenstein, Masad J Damha
Modified nucleoside triphosphates (dN*TPs) represent facile and versatile precursors for the introduction of chemical diversity into nucleic acids. While dN*TPs have been utilized in a plethora of practical applications, very little attention has been devoted to the assessment of their compatibility with isothermal amplification strategies. In this context, rolling circle amplification (RCA) is a wide-spread enzymatic replication method in which small single-stranded DNA (ssDNA) circles serve as templates in primer extension reactions yielding very long, ssDNA products...
December 1, 2016: Current Protocols in Nucleic Acid Chemistry
https://www.readbyqxmd.com/read/27909914/association-of-snp-variants-of-mhc-class-ii-drb-gene-with-thermo-physiological-traits-in-tropical-goats
#3
Abdulmojeed Yakubu, Adebowale E Salako, Marcos De Donato, Sunday O Peters, Michael I Takeet, Mathew Wheto, Moses Okpeku, Ikhide G Imumorin
Host defense in vertebrates depend on many secreted regulatory proteins such as major histocompatibility complex (MHC) class II which provide important regulatory and effector functions of T cells. Gene polymorphism in the second exon of Capra-DRB gene in three major Nigerian goat breeds [West African Dwarf (WAD), Red Sokoto (RS), and Sahel (SH)] was analyzed by restriction fragment length polymorphisms (RFLP). Four restriction enzymes, BsaHI, AluI, HaeIII, and SacII, were utilized. The association between the polymorphic sites and some heat tolerance traits were also investigated in a total of 70 WAD, 90 RS, and 50 SH goats...
December 1, 2016: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/27904696/a-study-on-the-correlation-between-mthfr-promoter-methylation-and-diabetic-nephropathy
#4
Xiao-Hui Yang, Ren-Fang Cao, Yang Yu, Miao Sui, Tao Zhang, Jing-Yi Xu, Xiao-Mei Wang
OBJECTIVE: In order to observe the relationship between MTHFR promoter and DN, the determinations on MTHFR promoter methylation level and expression of HCY from DN patients have been carried out. METHODS: According to the Diabetes diagnosis and classification standard from WHO in 1999, 85 patients with DM diagnosed by Endocrinology and 30 healthy participants from our medical examination center were chosen as control specimen to study in this paper. All this specimen were divided into A, B, C and D four groups , which are corresponding simple diabetes mellitus group (SDM), early diabetic nephropathy group (EDN), clinical diabetic nephropathy group (CDN) and normal control group...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27903991/role-of-oxidative-stress-and-inflammatory-factors-in-diabetic-kidney-disease
#5
Esmat Aghadavod, Samaneh Khodadadi, Azar Baradaran, Parto Nasri, Mahmood Bahmani, Mahmoud Rafieian-Kopaei
Diabetic nephropathy (DN) is a serious complication of diabetes mellitus, and its prevalence has been increasing in developed countries. Diabetic nephropathy has become the most common single cause of end-stage renal disease worldwide. Oxidative stress and inflammation factors are hypothesized to play a role in the development of late diabetes complications. Chronic hyperglycemia increases oxidative stress, significantly modifies the structure and function of proteins and lipids, and induces glycoxidation and peroxidation...
November 2016: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/27894247/aldose-reductase-as-a-drug-target-for-treatment-of-diabetic-nephropathy-promises-and-challenges
#6
Heba El Gamal, Shankar Munusamy
Diabetic nephropathy (DN) is one of the most serious microvascular complications of diabetes mellitus and the leading cause of end stage renal disease. One of the key pathways activated in DN is the polyol pathway, in which glucose is converted to sorbitol (a relatively non-metabolizable sugar) by the enzyme aldose reductase (AR). Shunting of glucose into this pathway causes disruption to glucose metabolism and subsequently damages the tissues via increased oxidative stress, protein kinase c activation and production of advanced glycation end products (AGE) in the kidney...
November 28, 2016: Protein and Peptide Letters
https://www.readbyqxmd.com/read/27890077/t-lymphocyte-immunophenotypes-in-the-cerebrospinal-fluid-of-dogs-with-visceral-leishmaniasis
#7
Fernanda G Grano, José Eduardo Dos S Silva, Guilherme D Melo, Juliana Perosso, Valéria M F Lima, Gisele F Machado
Visceral leishmaniasis (VL) is a disease causing several clinical manifestations in dogs, including neurological disorders. Nevertheless, there are few studies related to the evaluation of the brain alterations during VL. Evidences of the involvement of cerebral barriers in infected dogs was reported, including the presence of brain inflammatory infiltrate, with a predominance of CD3+ T cells. Therefore, the aim of this study was to determine the immunophenotypes of T lymphocytes in the cerebrospinal fluid (CSF), as well as in peripheral blood, and to correlate with brain alterations in dogs with VL...
December 15, 2016: Veterinary Parasitology
https://www.readbyqxmd.com/read/27889768/clinical-utility-of-serum-cystatin-c-in-predicting-diabetic-nephropathy-among-patients-with-diabetes-mellitus-a-meta-analysis
#8
Baoqin Zhou, Honghong Zou, Gaosi Xu
BACKGROUND/AIMS: Clinically, there is lack of predictors for diabetic nephropathy (DN) in diabetes mellitus (DM) without microalbuminuria, macroalbuminuria or retinopathy. METHODS: PubMed, Chinese Biomedical Database, Cochrane Library, EMBASE and Elsevier Database were searched from inception to August 13, 2016. Studies involving patients with DM and containing data on cystatin C measurements and the measured glomerular filtration rate (mGFR) were included. Pooled sensitivity, specificity, positive predictive value, negative predictive value and other diagnostic indices were evaluated using a random effect model...
November 28, 2016: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/27888719/treponema-pallidum-flagellin-flaa2-induces-il-6-secretion-in-thp-1-cells-via-the-toll-like-receptor-2-signaling-pathway
#9
Yafeng Xie, Man Xu, Yongjian Xiao, Zhuoran Liu, Chuanhao Jiang, Xingxing Kuang, Chuan Wang, Haiying Wu, Jing Peng, Chun Li, Yu Wang, Huaming Liu, Bin Liu, Xiaotuan Zhang, Feijun Zhao, Tiebing Zeng, Shuangquan Liu, Yimou Wu
Treponema pallidum subsp. pallidum membrane proteins are considered as potent inducers in the initiation and development of inflammation. In the present study, the mechanism that leads to the production of interleukin 6 (IL-6), one of the key proinflammatory cytokines, by human monocytic THP-1 cells when these cells are treated with T. pallidum flagellin FlaA2 was investigated. Stimulation with flagellin FlaA2 can induce IL-6 expression in human monocytes and augment the phosphorylation of ERK, p38, and NF-κB, but has no effect on the phosphorylation of JNK...
November 23, 2016: Molecular Immunology
https://www.readbyqxmd.com/read/27882943/metadherin-facilitates-podocyte-apoptosis-in-diabetic-nephropathy
#10
Wen-Ting Liu, Fen-Fen Peng, Hong-Yu Li, Xiao-Wen Chen, Wang-Qiu Gong, Wen-Jing Chen, Yi-Hua Chen, Pei-Lin Li, Shu-Ting Li, Zhao-Zhong Xu, Hai-Bo Long
Apoptosis, one of the major causes of podocyte loss, has been reported to have a vital role in diabetic nephropathy (DN) pathogenesis, and understanding the mechanisms underlying the regulation of podocyte apoptosis is crucial. Metadherin (MTDH) is an important oncogene, which is overexpressed in most cancers and responsible for apoptosis, metastasis, and poor patient survival. Here we show that the expression levels of Mtdh and phosphorylated p38 mitogen-activated protein kinase (MAPK) are significantly increased, whereas those of the microRNA-30 family members (miR-30s) are considerably reduced in the glomeruli of DN rat model and in high glucose (HG)-induced conditionally immortalized mouse podocytes (MPC5)...
November 24, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27881486/lysine-63-ubiquitination-is-involved-in-the-progression-of-tubular-damage-in-diabetic-nephropathy
#11
Paola Pontrelli, Francesca Conserva, Massimo Papale, Annarita Oranger, Mariagrazia Barozzino, Grazia Vocino, Maria Teresa Rocchetti, Margherita Gigante, Giuseppe Castellano, Michele Rossini, Simona Simone, Luigi Laviola, Francesco Giorgino, Giuseppe Grandaliano, Salvatore Di Paolo, Loreto Gesualdo
The purpose of our study was to evaluate how hyperglycemia (HG) influences Lys63 protein ubiquitination and its involvement in tubular damage and fibrosis in diabetic nephropathy (DN). Gene and protein expression of UBE2v1, a ubiquitin-conjugating E2-enzyme variant that mediates Lys63-linked ubiquitination, and Lys63-ubiquitinated proteins increased in HK2 tubular cells under HG. Matrix-assisted laser desorption/ionization-time of flight/tandem mass spectrometry identified 30 Lys63-ubiquitinated proteins, mainly involved in cellular organization, such as β-actin, whose Lys63 ubiquitination increased under HG, leading to cytoskeleton disorganization...
October 24, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27881098/genomic-determination-of-minimum-multi-locus-sequence-typing-schemas-to-represent-the-genomic-phylogeny-of-mycoplasma-hominis
#12
Aleksey Jironkin, Rebecca J Brown, Anthony Underwood, Victoria J Chalker, Owen B Spiller
BACKGROUND: Mycoplasma hominis is an opportunistic human pathogen, associated with clinically diverse disease. Currently, there is no standardised method for typing M. hominis, which would aid in understanding pathogen epidemiology and transmission. Due to availability and costs of whole genome sequencing and the challenges in obtaining adequate M. hominis DNA, the use of whole genome sequence analysis to provide clinical guidance is unpractical for this bacterial species as well as other fastidious organisms...
November 23, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27872816/evidence-of-triple-mutant-pfdhps-isgnga-haplotype-in-plasmodium-falciparum-isolates-from-north-east-india-an-analysis-of-sulfadoxine-resistant-haplotype-selection
#13
Manuj K Das, Sumi Chetry, Mohan C Kalita, Prafulla Dutta
BACKGROUND: North-east region of India has consistent role in the spread of multi drug resistant Plasmodium (P.) falciparum to other parts of Southeast Asia. After rapid clinical treatment failure of Artemisinin based combination therapy-Sulphadoxine/Pyrimethamine (ACT-SP) chemoprophylaxis, Artemether-Lumefantrine (ACT-AL) combination therapy was introduced in the year 2012 in this region for the treatment of uncomplicated P. falciparum malaria. In a DNA sequencing based polymorphism analysis, seven codons of P...
December 2016: Genomics Data
https://www.readbyqxmd.com/read/27870696/strength-and-conditioning-and-concurrent-training-practices-in-elite-rugby-union
#14
Thomas W Jones, Andrew Smith, Lindsay S Macnaughton, Duncan N French
Jones, TW, Smith, A, Macnaughton, LS, and French, DN. Strength and Conditioning and Concurrent Training Practices in Elite Rugby Union. J Strength Cond Res 30(12): 3354-3366, 2016-There is limited published research on strength and conditioning (S&C) practices in elite rugby union (RU). Information regarding testing batteries and programme design would provide valuable information to both applied practitioners and researchers investigating the influence of training interventions or preperformance strategies...
December 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27869457/autosomal-dominant-cerebellar-ataxia-deafness-and-narcolepsy-adca-dn-associated-with-progressive-cognitive-and-behavioral-deterioration
#15
Lisa A S Walker, Pierre Bourque, Andra M Smith, Jodi Warman Chardon
Objective: Autosomal dominant cerebellar ataxia with deafness and narcolepsy (ADCA-DN) is an emerging syndrome caused by mutations in the C-terminus end of the TS domain of the DNMT1 gene. ADCA-DN is also associated with sensorimotor polyneuropathy, extrapyramidal, and dysautonomic signs, as well as dementia. Little has been reported about the progressive cognitive impairment associated with ADCA-DN. Our objective is to provide a detailed characterization of the cognitive profile of ADCA-DN. Method: Three members of a kindred with ADCA-DN underwent comprehensive neuropsychological testing and neuroimaging...
November 21, 2016: Neuropsychology
https://www.readbyqxmd.com/read/27867224/approximating-the-little-grothendieck-problem-over-the-orthogonal-and-unitary-groups
#16
Afonso S Bandeira, Christopher Kennedy, Amit Singer
The little Grothendieck problem consists of maximizing Σ ij Cijxixj for a positive semidef-inite matrix C, over binary variables xi ∈ {±1}. In this paper we focus on a natural generalization of this problem, the little Grothendieck problem over the orthogonal group. Given C ∈ ℝ (dn) × (dn) a positive semidefinite matrix, the objective is to maximize [Formula: see text] restricting Oi to take values in the group of orthogonal matrices [Formula: see text], where Cij denotes the (ij)-th d × d block of C...
November 2016: Mathematical Programming
https://www.readbyqxmd.com/read/27867038/comparative-mitogenomic-analysis-of-three-species-of-periwinkles-littorina-fabalis-l-obtusata-and-l-saxatilis
#17
João P Marques, Graciela Sotelo, Tomas Larsson, Kerstin Johannesson, Marina Panova, Rui Faria
The flat periwinkles, Littorina fabalis and L.obtusata, offer an interesting system for local adaptation and ecological speciation studies. In order to provide genomic resources for these species, we sequenced their mitogenomes together with that of the rough periwinkle L.saxatilis by means of next-generation sequencing technologies. The three mitogenomes present the typical repertoire of 13 protein-coding genes, 22 transfer RNA genes, two ribosomal RNA genes and a putative control region. Although the latter could not be fully recovered in flat periwinkles using short-reads due to a highly repetitive fragment, in L...
November 17, 2016: Marine Genomics
https://www.readbyqxmd.com/read/27866274/ryanodine-receptor-type-3-does-not-contribute-to-contractions-in-the-mouse-myometrium-regardless-of-pregnancy
#18
Katsuhito Matsuki, Masashi Takemoto, Yoshiaki Suzuki, Hisao Yamamura, Susumu Ohya, Hiroshi Takeshima, Yuji Imaizumi
Ryanodine receptor type 3 (RyR3) is expressed in myometrial smooth muscle cells (MSMCs). The short isoform of RyR3 is a dominant negative variant (DN-RyR3) and negatively regulates the functions of RyR2 and full-length (FL)-RyR3. DN-RyR3 has been suggested to function as a major RyR3 isoform in non-pregnant (NP) mouse MSMCs, and FL-RyR3 may also be upregulated during pregnancy (P). This increase in the FL-RyR3/DN-RyR3 ratio may contribute to the strong contractions by MSMCs for parturition. In the present study, spontaneous contractions by the myometrium in NP and P mice were highly susceptible to nifedipine but were not affected by ryanodine...
November 20, 2016: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/27861335/response-of-fibroblast-growth-factor-23-to-volume-interventions-in-arterial-hypertension-and-diabetic-nephropathy
#19
Jelmer K Humalda, Sarah Seiler-Muler, Arjan J Kwakernaak, Marc G Vervloet, Gerjan Navis, Danilo Fliser, Gunnar H Heine, Martin H de Borst
Fibroblast growth factor 23 (FGF-23) rises progressively in chronic kidney disease and is associated with adverse cardiovascular outcomes. FGF-23 putatively induces volume retention by upregulating the sodium-chloride cotransporter (NCC). We studied whether, conversely, interventions in volume status affect FGF-23 concentrations.We performed a post hoc analysis of 1) a prospective saline infusion study with 12 patients with arterial hypertension who received 2 L of isotonic saline over 4 hours, and 2) a randomized controlled trial with 45 diabetic nephropathy (DN) patients on background angiotensin-converting enzyme -inhibition (ACEi), who underwent 4 6-week treatment periods with add-on hydrochlorothiazide (HCT) or placebo, combined with regular sodium (RS) or low sodium (LS) diet in a cross-over design...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27858840/regulation-of-podocyte-lesions-in-diabetic-nephropathy-via-mir-34a-in-the-notch-signaling-pathway
#20
Xiangying Zhang, Shuping Song, Huixin Luo
BACKGROUND: The activation of the Notch signaling pathway has been shown to play an important role in diabetic nephropathy (DN) development. Besides, Notch-1 is a target gene in miR-34a. However, the regulation of the podocyte lesions involved in DN by miR-34a has not been identified. METHODS: This study utilized miR-34a mimics and small interfering RNA transfection to construct miR-34a overexpression and lower-expression model to investigate the effect of miR-34a on the regulation of the Notch signaling pathway and podocyte lesions in DN...
November 2016: Medicine (Baltimore)
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