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https://www.readbyqxmd.com/read/28441657/involvement-of-the-multidrug-and-toxic-compound-extrusion-transporter-in-testosterone-release-from-cultured-pig-leydig-cells
#1
Mitsuhiro Goda, Kana Oda, Atsuko Oda, Naoki Kobayashi, Masato Otsuka
Testosterone is considered to be released from Leydig cells via passive diffusion because of its hydrophobicity; however, the exact mechanism underlying testosterone secretion and the transporter involved are both unknown. Multidrug and toxic compound extrusion (MATE) transporters are predominantly found in the kidneys and liver and are thought to function in the elimination of metabolic organic cations during the final step of excretion in the kidney. In contrast, mMATE2 has been shown to be predominantly expressed in testicular Leydig cells...
April 26, 2017: Pharmacology
https://www.readbyqxmd.com/read/28441619/the-influence-of-attention-biases-and-adult-attachment-style-on-treatment-outcome-for-adults-with-social-anxiety-disorder
#2
Yulisha Byrow, Lorna Peters
BACKGROUND: Attention biases figure prominently in CBT models of social anxiety and are thought to maintain symptoms of social anxiety disorder (SAD). Studies have shown that individual differences in pre-treatment attention biases predict cognitive behavioural therapy (CBT) outcome. However, these findings have been inconsistent as to whether vigilance towards threat predicts better or poorer treatment outcome. Adult attachment style is an individual characteristic that may influence the relationship between attention bias and SAD...
April 18, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28441614/learning-from-an-analysis-of-closed-malpractice-litigation-involving-myocardial-infarction
#3
Kuan-Han Wu, Yung-Lin Yen, Chien-Hung Wu, Chi-Yuan Hwang, Shih-Yu Cheng
OBJECTIVE: To examine the epidemiologic data, identify the pattern of dispute, and determine clinical litigious errors by analyzing closed malpractice claims involving myocardial infarction (MI) in Taiwanese courts. METHODS: A retrospective descriptive study was performed to analyze the verdicts pertaining to MI from the population-based database of the Taiwan judicial system between 2002 and 2013. The results of adjudication, involved specialists, primary dispute leading to lawsuits, and litigious errors were recorded...
April 13, 2017: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/28441600/microplastics-in-the-antarctic-marine-system-an-emerging-area-of-research
#4
REVIEW
Catherine L Waller, Huw J Griffiths, Claire M Waluda, Sally E Thorpe, Iván Loaiza, Bernabé Moreno, Cesar O Pacherres, Kevin A Hughes
It was thought that the Southern Ocean was relatively free of microplastic contamination; however, recent studies and citizen science projects in the Southern Ocean have reported microplastics in deep-sea sediments and surface waters. Here we reviewed available information on microplastics (including macroplastics as a source of microplastics) in the Southern Ocean. We estimated primary microplastic concentrations from personal care products and laundry, and identified potential sources and routes of transmission into the region...
April 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28441551/treating-normal-early-gestation-placentae-with-preeclamptic-sera-produces-extracellular-micro-and-nano-vesicles-that-activate-endothelial-cells
#5
Xirong Xiao, Fengyi Xiao, Mingzhi Zhao, Mancy Tong, Michelle R Wise, Peter R Stone, Lawrence W Chamley, Qi Chen
OBJECTIVES: Preeclampsia is characterised by systemic endothelial cell dysfunction thought to be triggered by toxic/dangerous factors from the placenta, including placental extracellular vesicles (EVs). Why placental EVs become toxic is unknown. We previously reported that preeclamptic sera produced toxic/dangerous placental macrovesicles but whether small EVs are also toxic/dangerous in preeclampsia is unknown. STUDY DESIGN: First trimester placental explants were treated with 10% preeclamptic or control sera (n=10) for 24h...
April 14, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28441480/metabolite-profiling-of-a-zn-accumulating-rice-mutant
#6
Yin Wang, Sha Mei, Zhixue Wang, Zhoulei Jiang, Zhangshicang Zhu, Jingwen Ding, Dianxing Wu, Xiao-Li Shu
Breeding crops with high Zn-density is an effective way to alleviate human dietary Zn deficiencies. We characterized a mutant Lilizhi (LLZ) accumulating at least 35% higher Zn concentration in grain than wild-type in hydroponics experiments. The mutant stored less Zn contents in the roots and transported more Zn to the grain. Metabolite profiling demonstrated that with high Zn treatment, the content of proline, asparagine, citric acid and malic acid were enhanced in both LLZ and the WT, which were thought to be involved in Zn transport in rice...
April 25, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28441416/ethanol-itself-is-a-holoprosencephaly-inducing-teratogen
#7
Mingi Hong, Robert S Krauss
Ethanol is a teratogen, inducing a variety of structural defects in developing humans and animals that are exposed in utero. Mechanisms of ethanol teratogenicity in specific defects are not well understood. Oxidative metabolism of ethanol by alcohol dehydrogenase or cytochrome P450 2E1 has been implicated in some of ethanol's teratogenic effects, either via production of acetaldehyde or competitive inhibition of retinoic acid synthesis. Generalized oxidative stress in response to ethanol may also play a role in its teratogenicity...
2017: PloS One
https://www.readbyqxmd.com/read/28440926/sources-and-dispersive-modes-of-micro-fibers-in-the-environment
#8
Steve A Carr
Understanding the sources and distribution of microfibers (MFs) in the environment is critical if control and remediation measures are to be effective. Microfibers comprise an overwhelming fraction (>85%) of microplastic debris found on shorelines around the world. Although primary sources have not been fully vetted, until recently it was widely believed that domestic laundry discharges were the major source. It was also thought that synthetic fibers and particles having dimensions <5 mm easily bypassed filtration and other solid separation processes at wastewater treatment plants (WWTPs) and entered oceans and surface waters...
May 2017: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/28440902/between-visit-changes-in-suicidal-ideation-and-risk-of-subsequent-suicide-attempt
#9
Gregory E Simon, Susan M Shortreed, Eric Johnson, Arne Beck, Karen J Coleman, Rebecca C Rossom, Ursula S Whiteside, Belinda H Operskalski, Robert B Penfold
BACKGROUND: While clinicians are expected to routinely assess and address suicide risk, existing data provide little guidance regarding the significance of visit-to-visit changes in suicidal ideation. METHODS: Electronic health records from four large healthcare systems identified patients completing the Patient Health Questionnaire or PHQ9 at outpatient visits. For patients completing two questionnaires within 90 days, health system records and state vital records were used to identify nonfatal and fatal suicide attempts...
April 25, 2017: Depression and Anxiety
https://www.readbyqxmd.com/read/28440814/depletion-of-adult-neurogenesis-using-the-chemotherapy-drug-temozolomide-in-mice-induces-behavioural-and-biological-changes-relevant-to-depression
#10
M Egeland, C Guinaudie, A Du Preez, K Musaelyan, P A Zunszain, C Fernandes, C M Pariante, S Thuret
Numerous studies have examined links between postnatal neurogenesis and depression using a range of experimental methods to deplete neurogenesis. The antimitotic drug temozolomide (TMZ) has previously been used successfully as an experimental tool in animals to deplete adult neurogenesis and is used regularly on human patients as a standard chemotherapy for brain cancer. In this study, we wanted to evaluate whether TMZ as a model for chemotherapy treatment could affect parameters related to depression in an animal model...
April 25, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28440676/attitudes-of-chinese-adults-to-breastfeeding-in-public-a-web-based-survey
#11
Ya Zhao, Yan-Qiong Ouyang, Sharon R Redding
OBJECTIVE: To explore Chinese adults' perceptions and attitudes toward breastfeeding in public places. MATERIALS AND METHODS: This was a web-based survey including 10 items on breastfeeding participants (N = 2,021) who were recruited by convenience sampling. RESULTS: Almost 95% believed that public places should have lactation rooms, 86% thought it was acceptable for mothers to breastfeed in this location, and 65% of respondents agreed that it was acceptable for mothers to breastfeed in public...
April 25, 2017: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
https://www.readbyqxmd.com/read/28440654/holocene-atmospheric-mercury-levels-reconstructed-from-peat-bog-mercury-stable-isotopes
#12
Maxime Enrico, Gael Le Roux, Lars-Eric Heimburger, Pieter Van Beek, Marc Souhaut, Jerome Chmeleff, Jeroen E Sonke
Environmental regulations on mercury (Hg) emissions and associated ecosystem restoration are closely linked to what Hg levels we consider natural. It is widely accepted that atmospheric Hg deposition has increased by a factor 3±1 since pre-industrial times. However, no long-term historical records of actual atmospheric gaseous elemental Hg (GEM) concentrations exist. In this study we report Hg stable isotope signatures in Pyrenean peat records (southwestern Europe) that are used as tracers of Hg deposition pathway (Δ(200)Hg, wet vs dry Hg deposition) and atmospheric Hg sources and cycling (δ(202)Hg, Δ(199)Hg)...
April 25, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28440354/normal-intracranial-bs-bsob-ratio-values-in-the-first-trimester-of-single-gestations-with-live-fetuses-in-a-korean-population
#13
Sung Hee Yang, Hyun Sook An, Jin Soo Lee, Changsoo Kim
AIM: The purpose of this study was to determine the normal length of the brainstem (BS) in Korean fetuses and to evaluatethe usefulness of the routine measurement of BS size in the first trimester of pregnancy for the early detection of spina bifida. MATERIAL AND METHODS: A total of 2,621 normal singleton pregnant Korean women at 10+6 to 13+6 weeks of gestation were selected for this retrospective cross-sectional study. Ultrasonography was used to measure the length of the longest vertical depth diameter of the BS and brainstem-occipital bone (BSOB) in order to obtain the BS to BSOB ratio...
April 22, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/28440352/intrathyroidal-ectopic-thymus-in-children-a-sonographic-survey
#14
Adnan Kabaalioğlu, Murat Alp Öztek, Uğur Kesimal, Kağan Çeken, Emel Durmaz, Ali Apaydın
AIMS: Intrathyroidal ectopic thymus (IET) is being increasingly reported in the radiology literature. Most of the reports are of individual cases or small series and prevalence and natural course of the pathology is not well known. The purpose of this study is to establish the prevalence of IET in children and report long term follow-up results. MATERIAL AND METHODS: In 180 children who were examined by ultrasound (US) for other reasons, 7 patients were indentified with IET...
April 22, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/28439985/the-utility-of-mass-fix-to-detect-and-monitor-monoclonal-proteins-in-the-clinic
#15
Paolo Milani, David L Murray, David R Barnidge, Mindy C Kohlhagen, John R Mills, Giampaolo Merlini, Surendra Dasari, Angela Dispenzieri
The detection and quantification of monoclonal-proteins (M-proteins) are necessary for the diagnosis and evaluation of response in plasma cell dyscrasias. Immunoglobulin enrichment-coupled with matrix-assisted laser desorption ionization time-of-flight mass-spectrometry (MASS-FIX) is a simple and inexpensive method to identify M-proteins, but its clinical generalizability has not yet been elucidated. We compared MASS-FIX to protein electrophoresis (PEL), serum/urine immunofixation-electrophoresis (IFE) and quantitative serum free-light chain (FLC) for the identification of M-proteins in different clinical diagnoses...
April 25, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28439318/bodily-effort-enhances-learning-and-metacognition-investigating-the-relation-between-physical-effort-and-cognition-using-dual-process-models-of-embodiment
#16
Alexander Skulmowski, Günter Daniel Rey
Recent embodiment research revealed that cognitive processes can be influenced by bodily cues. Some of these cues were found to elicit disparate effects on cognition. For instance, weight sensations can inhibit problem-solving performance, but were shown to increase judgments regarding recall probability (judgments of learning; JOLs) in memory tasks. We investigated the effects of physical effort on learning and metacognition by conducting two studies in which we varied whether a backpack was worn or not while 20 nouns were to be learned...
2017: Advances in Cognitive Psychology
https://www.readbyqxmd.com/read/28439170/non-calcifying-type-of-calcifying-epithelial-odontogenic-tumor-an-unusual-case-report-with-special-emphasis-on-histogenesis-of-calcifications
#17
Sravya Taneeru, Venkateswara Rao Guttikonda, Rajani Korlepara, Rajasekhar Gaddipati, Vinay Kumar Kundoor
Calcifying epithelial odontogenic tumour also known as Pindborg tumour, is a rare benign odontogenic neoplasm of locally aggressive behavior. It is thought to arise from the epithelial element of the enamel origin which are reminiscent of the cells in the stratum intermedium layer of enamel organ in tooth development. The tumour is characterized histologically by the presence of polygonal epithelial cells, calcifications and eosinophilic deposits resembling amyloid. Non-calcifying epithelial odontogenic tumours are very rare and unusual...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28439099/optogenetic-silencing-of-a-corticotropin-releasing-factor-pathway-from-the-central-amygdala-to-the-bed-nucleus-of-the-stria-terminalis-disrupts-sustained-fear
#18
A Asok, A Draper, A F Hoffman, J Schulkin, C R Lupica, J B Rosen
The lateral central nucleus of the amygdala (CeAL) and the dorsolateral bed nucleus of the stria terminalis (BNSTDL) coordinate the expression of shorter- and longer-lasting fears, respectively. Less is known about how these structures communicate with each other during fear acquisition. One pathway, from the CeAL to the BNSTDL, is thought to communicate via corticotropin-releasing factor (CRF), but studies have yet to examine its function in fear learning and memory. Thus, we developed an adeno-associated viral-based strategy to selectively target CRF neurons with the optogenetic silencer archaerhodopsin tp009 (CRF-ArchT) to examine the role of CeAL CRF neurons and projections to the BNSTDL during the acquisition of contextual fear...
April 25, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28439037/regulation-of-a-glycerol-induced-quinoprotein-alcohol-dehydrogenase-by-%C3%AF-54-and-a-luxr-type-regulator-in-azospirillum-brasilense-sp7
#19
Vijay Shankar Singh, Ashutosh Prakash Dubey, Ankush Gupta, Sudhir Singh, Bhupendra Narain Singh, Anil Kumar Tripathi
Azospirillum brasilense Sp7 uses glycerol as carbon source for growth and nitrogen fixation. When grown in medium containing glycerol as carbon source it upregulates the expression of a protein which was identified as quinoprotein alcohol dehydrogenase (ExaA). Inactivation of exaA adversely affects the growth of A. brasilense on glycerol. Determination of the transcription start site of exaA revealed an RpoN dependent -12/-24 promoter consensus. The expression of an exaA:lacZ fusion was induced maximally by glycerol, and was dependent on σ(54) Bioinformatic analysis of the sequence flanking the -12/-24 promoter revealed a 17 bp sequence motif with a dyad symmetry of 6 nucleotides upstream of the promoter, disruption of which caused a drastic reduction in promoter activity...
April 24, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28439033/genome-wide-identification-of-resd-nsrr-and-fur-binding-in-bacillus-subtilis-during-anaerobic-fermentative-growth-by-in-vivo-footprinting
#20
Onuma Chumsakul, Divya P Anantsri, Tai Quirke, Taku Oshima, Kensuke Nakamura, Shu Ishikawa, Michiko M Nakano
Upon oxygen limitation, the Bacillus subtilis ResE sensor kinase and its cognate ResD response regulator play primary roles in transcriptional activation of genes functioning in anaerobic respiration. The nitric oxide (NO)-sensitive NsrR repressor controls transcription to support nitrate respiration. In addition, the ferric uptake repressor (Fur) can modulate transcription under anaerobic conditions. However, whether these controls are direct or indirect has been investigated only in a gene-specific manner...
April 24, 2017: Journal of Bacteriology
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