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https://www.readbyqxmd.com/read/28547667/metalloproteomics-approach-to-analyze-mercury-in-breast-milk-and-hair-samples-of-lactating-women-in-communities-of-the-amazon-basin-brazil
#1
M R Cerbino, José Cavalcante Souza Vieira, C P Braga, G Oliveira, I F Padilha, T M Silva, L F Zara, N J Silva, P M Padilha
Mercury is a potentially toxic element that is present in the environment of the Brazilian Amazon and is responsible for adverse health effects in humans. This study sought to assess possible protein biomarkers of mercury exposure in breast milk samples from lactating women in the Madeira and Negro Rivers in the Brazilian Amazon. The mercury content of hair samples of lactating women was determined, and the proteome of breast milk samples was obtained using two-dimensional electrophoresis after protein precipitation with acetone...
May 25, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28546386/assessment-of-gene-flow-between-gossypium-hirsutum-and-gossypium-herbaceum-evidence-of-unreduced-gametes-in-the-diploid-progenitor
#2
E Montes, O Coriton, F Eber, V Huteau, J M Lacape, C Reinhardt, D Marais, J L Hofs, A M Chèvre, C Pannetier
In the framework of a gene flow assessment, we investigated the natural hybridization rate between Gossypium hirsutum (AADD genome) and G. herbaceum (AA genome). The latter species, a diploid progenitor of G. hirsutum, is spontaneously present in South Africa. Reciprocal crosses were performed without emasculation between G. herbaceum and G. hirsutum Neither examination of the morphological characteristics nor flow cytometry analysis of the 335 plants resulting from the G. hirsutum x G. herbaceum cross showed any hybrid features...
May 25, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28542797/application-of-geographic-information-systems-to-investigating-associations-between-social-status-and-burial-location-in-medieval-trino-vercellese-piedmont-italy
#3
Marissa C Stewart, Giuseppe Vercellotti
OBJECTIVES: Socioeconomic status differences in skeletal populations are often inferred from skeletal indicators of stress and burial location. However, to date, the association between osteometric parameters and spatial location in relation to socioeconomic status in medieval Italy has not been explicitly tested. MATERIALS AND METHODS: This study examined the spatial distribution of osteometric data in the medieval (8th-13th c.) cemetery of San Michele di Trino (Trino Vercellese, VC, Italy) to determine whether skeletal correlates of socioeconomic status correspond with privileged burial locations...
May 24, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28540636/gm2-activator-deficiency-caused-by-a-homozygous-exon-2-deletion-in-gm2a
#4
Patricia L Hall, Regina Laine, John J Alexander, Arunkanth Ankala, Lisa A Teot, Hart G W Lidov, Irina Anselm
GM2 activator (GM2A) deficiency (OMIM 613109) is a rare lysosomal storage disorder, with onset typically in infancy or early childhood. Clinically, it is almost indistinguishable from Tay-Sachs disease (OMIM 272800) or Sandhoff disease (OMIM 268800); however, traditionally available biochemical screening tests will most likely reveal normal results. We report a 2-year-old male with initially normal development until the age of 9 months, when he presented with developmental delay and regression. Workup at that time was unrevealing; at 15 months, he had abnormal brain MRI findings and a cherry red spot on ophthalmological examination...
May 25, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28536037/identification-of-molecular-targets-in-vulvar-cancers
#5
Marguerite L Palisoul, Mary M Mullen, Rebecca Feldman, Premal H Thaker
OBJECTIVES: To identify molecular alterations that contribute to vulvar cancer pathogenesis with the intent of identifying molecular targets for treatment. METHODS: After retrospective analysis of a database of molecularly-profiled gynecologic cancer patients, 149 vulvar cancer patients were included and tested centrally at a CLIA laboratory (Caris Life Sciences, Phoenix, AZ). Tests included one or more of the following: gene sequencing (Sanger or next generation sequencing [NGS]), protein expression (immunohistochemistry [IHC]), and gene amplification (C/FISH)...
May 20, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28535503/determining-an-upper-reference-value-for-the-urinary-fluoride-creatinine-ratio-in-healthy-children-younger-than-7-years
#6
F Vida Zohoori, A Maguire
The urinary fluoride/creatinine ratio (UF/Cr) in a spot urine sample could be a useful systemic F exposure monitoring tool. No reference value for UF/Cr currently exists, therefore this study aimed to establish an upper reference value for a UF/Cr, corresponding to excessive systemic F exposure, i.e., >0.07 mg F/kg body weight (b.w.)/day, in children. Subsidiary aims were to examine the relationship between (i) total daily F intake (TDFI) and 24-h urinary F excretion (DUFE); (ii) DUFE and UF/Cr, and (iii) TDFI and UF/Cr...
May 24, 2017: Caries Research
https://www.readbyqxmd.com/read/28534953/proteomic-analysis-of-differentially-expressed-proteins-in-kidneys-of-brain-dead-rabbits
#7
Ling Li, Ning Li, Chongxiang He, Wei Huang, Xiaoli Fan, Zibiao Zhong, Yanfeng Wang, Qifa Ye
A large number of previous clinical studies have reported a delayed graft function for brain dead donors, when compared with living relatives or cadaveric organ transplantations. However, there is no accurate method for the quality evaluation of kidneys from brain‑dead donors. In the present study, two‑dimensional gel electrophoresis and MALDI‑TOF MS‑based comparative proteomic analysis were conducted to profile the differentially‑expressed proteins between brain death and the control group renal tissues...
May 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28533178/mucin-and-carbohydrate-stimulated-adhesion-and-subproteome-changes-of-the-probiotic-bacterium-lactobacillus-acidophilus-ncfm
#8
Hasan Ufuk Celebioglu, Sita Vaag Olesen, Kennie Prehn, Sampo J Lahtinen, Susanne Brix, Maher Abou Hachem, Birte Svensson
Adhesion to intestinal mucosa is a crucial property for probiotic bacteria. Adhesion is thought to increase host-bacterial interactions, thus potentially enabling health benefits to the host. Molecular events connected with adhesion and surface proteome changes were investigated for the probiotic Lactobacillus acidophilus NCFM cultured with established or emerging prebiotic carbohydrates as carbon source and in the presence of mucin, the glycoprotein of the epithelial mucus layer. Variation in adhesion to HT29-cells and mucin was associated with carbon source and mucin-induced subproteome abundancy differences...
May 19, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28529542/frequency-and-geographic-distribution-of-tert-promoter-mutations-in-primary-hepatocellular-carcinoma
#9
REVIEW
Francesca Pezzuto, Luigi Buonaguro, Franco M Buonaguro, Maria Lina Tornesello
Primary hepatocellular carcinoma (HCC) mainly develops in subjects chronically infected with hepatitis B (HBV) and C (HCV) viruses through a multistep process characterized by the accumulation of genetic alterations in the human genome. Nucleotide changes in coding regions (i.e. TP53, CTNNB1, ARID1A and ARID2) as well as in non-coding regions (i.e. TERT promoter) are considered cancer drivers for HCC development with variable frequencies in different geographic regions depending on the etiology and environmental factors...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28528560/design-and-implementation-of-a-community-health-worker-hiv-treatment-and-prevention-intervention-in-an-hiv-hot-spot-fishing-community-in-rakai-uganda
#10
Amanda Long, Ismail Mbabali, Heidi E Hutton, Alvin G Thomas, Eva Bugos, Jeremiah Mulamba, Kathy Rivet Amico, Fred Nalugoda, Ronald H Gray, Maria J Wawer, Gertrude Nakigozi, Larry W Chang
Innovative approaches are needed to increase engagement in HIV treatment and prevention services, particularly in HIV hot spots. Here, we detail our design, training approach, and early implementation experiences of a community-based HIV intervention called "health scouts." The intervention, utilizing a novel, theory-based approach, trained 10 community residents in an HIV hot spot fishing community to use motivational interviewing strategies and a mobile phone-based counseling application. During the first 3 months, 771 residents (median 82/health scout, range 27-160) were counseled...
January 1, 2017: Journal of the International Association of Providers of AIDS Care
https://www.readbyqxmd.com/read/28527102/studies-of-environmental-risk-factors-in-amyotrophic-lateral-sclerosis-als-and-a-phase-i-clinical-trial-of-l-serine
#11
Walter G Bradley, R X Miller, T D Levine, E W Stommel, P A Cox
β-N-Methylamino-L-alanine (BMAA) has been linked to Guam ALS/PDC and shown to produce neurodegeneration in vitro and in vivo (Drosophila, mice, rats, primates). BMAA misincorporation into neuroproteins produces protein misfolding and is inhibited by L-serine. Case-control studies in Northern New England indicate that living near to water-bodies with cyanobacterial blooms increases the risk of developing amyotrophic lateral sclerosis (ALS). The distribution of addresses of ALS cases in New Hampshire, Vermont, and Florida was compared to that of controls...
May 19, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28526914/finite-element-method-simulating-temperature-distribution-in-skin-induced-by-980-nm-pulsed-laser-based-on-pain-stimulation
#12
Han Wang, Xiao-Xi Dong, Ji-Chun Yang, He Huang, Ying-Xin Li, Hai-Xia Zhang
For predicting the temperature distribution within skin tissue in 980-nm laser-evoked potentials (LEPs) experiments, a five-layer finite element model (FEM-5) was constructed based on Pennes bio-heat conduction equation and the Lambert-Beer law. The prediction results of the FEM-5 model were verified by ex vivo pig skin and in vivo rat experiments. Thirty ex vivo pig skin samples were used to verify the temperature distribution predicted by the model. The output energy of the laser was 1.8, 3, and 4.4 J. The laser spot radius was 1 mm...
May 19, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28526064/seasonal-variation-in-the-prevalence-of-toxocara-eggs-on-children-s-playgrounds-in-the-city-of-hanover-germany
#13
Annika Kleine, Andrea Springer, Christina Strube
BACKGROUND: Roundworms of the genus Toxocara are worldwide distributed zoonotic parasites of carnivores. Based on case numbers and the potential impact on human health, the Centers for Disease Control and Prevention (CDC) categorised toxocarosis as one of the most important neglected parasitic diseases. As contact with contaminated soil, e.g. in sandpits, is considered the primary transmission route, data on playground contamination are needed to assess infection risk for children. Here, playground contamination rates and their seasonal variation in the city of Hanover, Germany, were investigated...
May 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28525812/clinical-characteristics-and-prrt2-gene-mutation-analysis-of-sporadic-patients-with-paroxysmal-kinesigenic-dyskinesia-in-china
#14
Yu Zhang, Lin Li, Wei Chen, Jing Gan, Zhen Guo Liu
OBJECTIVE: As a rare type of movement disorder, paroxysmal kinesigenic dyskinesia mainly affects children and is associated with PRRT2 gene mutation. The objective of our study is to identify whether the sporadic patients share the same genotype-phenotype correlations as familial patients in China. PATIENTS AND METHODS: We investigated the clinical characteristics and PRRT2 gene mutations of 15 sporadic patients with paroxysmal kinesigenic dyskinesia in china. The clinical and investigational data of our patients was recorded and analyzed meticulously...
May 8, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28523918/current-status-of-viral-diseases-in-indian-shrimp-aquaculture
#15
G M Tandel, K Riji John, M Rosalind George, M J Prince Jeyaseelan
The intensification of aquaculture has been unique in showing the overwhelming changes in global food production in the last 100 years. Presently, it is playing a vital role in the economies of several countries. Conversely, it is also to be noted that the progression of aquaculture has been the foundation of anthropogenic alteration of a gigantic hierarchy and hence not astonishingly, it resulted in spread and emergence of an increasing group of new unknown diseases. In India, Penaeus monodon, black tiger shrimp was previously the foremost-cultivated shrimp species...
2017: Acta Virologica
https://www.readbyqxmd.com/read/28522808/plasmonics-enhanced-smartphone-fluorescence-microscopy
#16
Qingshan Wei, Guillermo Acuna, Seungkyeum Kim, Carolin Vietz, Derek Tseng, Jongjae Chae, Daniel Shir, Wei Luo, Philip Tinnefeld, Aydogan Ozcan
Smartphone fluorescence microscopy has various applications in point-of-care (POC) testing and diagnostics, ranging from e.g., quantification of immunoassays, detection of microorganisms, to sensing of viruses. An important need in smartphone-based microscopy and sensing techniques is to improve the detection sensitivity to enable quantification of extremely low concentrations of target molecules. Here, we demonstrate a general strategy to enhance the detection sensitivity of a smartphone-based fluorescence microscope by using surface-enhanced fluorescence (SEF) created by a thin metal-film...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28520816/high-prevalence-of-elevated-blood-lead-levels-in-both-rural-and-urban-iowa-newborns-spatial-patterns-and-area-level-covariates
#17
Margaret Carrel, David Zahrieh, Sean G Young, Jacob Oleson, Kelli K Ryckman, Brian Wels, Donald L Simmons, Audrey Saftlas
Lead in maternal blood can cross the placenta and result in elevated blood lead levels in newborns, potentially producing negative effects on neurocognitive function, particularly if combined with childhood lead exposure. Little research exists, however, into the burden of elevated blood lead levels in newborns, or the places and populations in which elevated lead levels are observed in newborns, particularly in rural settings. Using ~2300 dried bloods spots collected within 1-3 days of birth among Iowa newborns, linked with the area of mother's residence at the time of birth, we examine the spatial patterns of elevated (>5 μg/dL) blood lead levels and the ecological-level predictors of elevated blood lead levels...
2017: PloS One
https://www.readbyqxmd.com/read/28515472/carrier-frequency-of-wilson-s-disease-in-the-korean-population-a-dna-based-approach
#18
Ja-Hyun Jang, Taeheon Lee, Sunghee Bang, Young-Eun Kim, Eun-Hae Cho
Wilson's disease (WD) is an autosomal recessive disorder caused by ATP7B gene mutation. The frequency of WD is about 1 in 30 000 worldwide. In the present study, we screened 14 835 dried blood spots (DBSs) from asymptomatic Korean neonates and retrospectively reviewed massively parallel sequencing of 1090 control individuals to estimate carrier frequency. TaqMan real-time PCR assays were conducted to detect six mutations that account for 58.3% of mutations in Korean WD patients: c.2333G>T (p.Arg778Leu), c...
May 18, 2017: Journal of Human Genetics
https://www.readbyqxmd.com/read/28513674/molecular-organization-in-the-twist-bend-nematic-phase-by-resonant-x-ray-scattering-at-the-se-k-edge-and-by-saxs-waxs-and-gixrd
#19
W D Stevenson, Z Ahmed, X B Zeng, C Welch, G Ungar, G H Mehl
Using a magnetically aligned liquid crystal mixture containing a novel Se-labelled dimer and the difluoroterphenyl dimer DTC5C7, the twist-bend nematic phase (Ntb) was studied by the resonant scattering of hard X-rays and by conventional small and wide-angle X-ray scattering (SAXS, WAXS). Resonant diffraction spots indicated a helix with a 9-12 nm pitch in the Ntb phase and an unprecedentedly high helix orientation. This enabled deconvolution of global and local order parameters. These findings, combined with the simultaneously recorded resonant and non-resonant SAXS and WAXS data, allowed us to construct a locally layered molecular model of the Ntb phase, where the average twisted conformation of each molecule was idealised as a helical segment, matching the local heliconical director field...
May 17, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28506498/sweet-spot-matching-a-thin-layer-chromatography-based-countercurrent-solvent-system-selection-strategy
#20
Yang Liu, J Brent Friesen, Edyta M Grzelak, Qingfei Fan, Ting Tang, Kemal Durić, Birgit U Jaki, James B McAlpine, Scott G Franzblau, Shao-Nong Chen, Guido F Pauli
TLC-based strategies were proposed in 1979 (Hostettmann et al.) and 2005 (Friesen & Pauli; GUESS method) to minimize the number of partitioning experiments required for countercurrent separation (CCS) solvent system selection. As semi-empirical approaches, both proposed that the K values defining the sweet spot of optimal CCS corresponded to a matching Rf value range from the silica gel TLC plate developed in the organic phase of a biphasic or a corresponding monophasic solvent system. Despite their simplicity, there has been an absence of theoretical support and a deficiency of reported experimental evidence...
April 27, 2017: Journal of Chromatography. A
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