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https://www.readbyqxmd.com/read/29031156/hiv-misdiagnosis-a-root-cause-analysis-leading-to-improvements-in-hiv-diagnosis-and-patient-care
#1
Raynell Lang, Carmen Charlton, Brenda Beckthold, Kiana Kadivar, Stephanie Lavoie, Doug Caswell, Paul Levett, Greg Horsman, John Kim, M John Gill
BACKGROUND: Standard diagnostic testing for HIV infection has traditionally relied on a high sensitivity HIV antibody screening test using an enzyme-linked immunosorbent assay (ELISA) followed by a high specificity antibody confirmatory test such as a Western Blot. Recently several of the screening assays have been enhanced with an ability to identify p24 antigen thereby narrowing the diagnostic window. OBJECTIVES: To explore the implications of enhanced HIV screening methods that may be leading to HIV misdiagnoses...
October 9, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29031105/effects-of-processing-parameters-on-the-inactivation-of-bacillus-cereus-spores-on-red-pepper-capsicum-annum-l-flakes-by-microwave-combined-cold-plasma-treatment
#2
Jung Eun Kim, Hyeon-Son Choi, Dong-Un Lee, Sea C Min
The efficacy of microwave-combined cold plasma treatment (MCPT) for inactivating Bacillus cereus spores contaminating red pepper (Capsicum annum L.) flakes was investigated. The effects of red pepper drying method, particle size, and water activity (aw) were also evaluated at two levels of microwave power (1700 and 2500W/cm(2)). The inactivation effect of MCPT was higher at higher microwave power. Spore reduction was more effective with vacuum-dried red pepper than far-infrared-dried flakes. A significantly higher level of spore reduction was observed with the red pepper sample with a smaller surface to volume ratio when one surface (exterior surface) was inoculated (p<0...
September 27, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29031089/17%C3%AE-estradiol-regulates-the-rna-binding-protein-nova1-which-then-regulates-the-alternative-splicing-of-estrogen-receptor-%C3%AE-in-the-aging-female-rat-brain
#3
Cody L Shults, Caitlin B Dingwall, Chun K Kim, Elena Pinceti, Yathindar S Rao, Toni R Pak
Alternative RNA splicing results in the translation of diverse protein products arising from a common nucleotide sequence. These alternative protein products are often functional and can have widely divergent actions from the canonical protein. Studies in humans and other vertebrate animals have demonstrated that alternative splicing events increase with advanced age, sometimes resulting in pathological consequences. Menopause represents a critical transition for women, where the beneficial effects of estrogens are no longer evident; therefore, factors underlying increased pathological conditions in women are confounded by the dual factors of aging and declining estrogens...
September 14, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/29031071/discovery-of-thienopyrrolotriazine-derivatives-to-protect-mitochondrial-function-against-a%C3%AE-induced-neurotoxicity
#4
TaeHun Kim, Woo Seung Son, Mohammad Neaz Morshed, Ashwini M Londhe, Seo Yun Jung, Jong-Hyun Park, Woo-Kyu Park, Sang Min Lim, Ki Duk Park, Sung Jin Cho, Kyu-Sung Jeong, Jiyoun Lee, Ae Nim Pae
Recovery of mitochondrial dysfunction has gained increasing attention as an alternative therapeutic strategy for Alzheimer's disease (AD). Recent studies suggested that the 18 kDa mitochondrial translocator protein (TSPO) has the potential to serve as a drug target for the treatment of AD. In this study, we generated a structure-based pharmacophore model and virtually screened a commercial library, identifying SVH07 as a virtual hit, which contained a tricyclic core structure, thieno[2',3':4,5]pyrrolo[1,2-d][1,2,4]triazine group...
September 21, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29031033/an-arabidopsis-divergent-pumilio-protein-apum24-is-essential-for-embryogenesis-and-required-for-faithful-pre-rrna-processing
#5
Thiruvenkadam Shanmugam, Nazia Abbasi, Hyung-Sae Kim, Ho Bang Kim, Nam-Il Park, Guen Tae Park, Sung Aeong Oh, Soon Ki Park, Douglas G Muench, Yeonhee Choi, Youn-Il Park, Sang-Bong Choi
Pumilio RNA-binding proteins are largely involved in mRNA degradation and translation repression. However, a few evolutionarily divergent Pumilios are also responsible for proper pre-rRNA processing in human and yeast. Here, we describe an essential Arabidopsis nucleolar Pumilio, APUM24, that is expressed in tissues undergoing rapid proliferation and cell division. A T-DNA insertion for APUM24 did not affect the male and female gametogenesis, but instead resulted in a negative female gametophytic effect on zygotic cell division immediately after fertilization...
October 14, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29031023/whole-body-vibration-combined-with-treadmill-training-improves-walking-performance-in-post-stroke-patients-a-randomized-controlled-trial
#6
Wonjae Choi, Donghun Han, Junesun Kim, Seungwon Lee
BACKGROUND Stroke is characterized by an asymmetrical gait pattern that causes poor stability and reduces overall activity levels. The aim of this study was to investigate the effect of whole-body vibration combined with treadmill training (WBV-TT) on walking performance in patients with chronic stroke. MATERIAL AND METHODS Thirty ambulatory chronic stroke patients were randomly allocated to the WBV-TT group or the treadmill training (TT) group. The participants in the WBV-TT group performed 6 types of exercises on a vibrating platform for 4...
October 14, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29029361/the-mechanism-of-attenuation-of-epithelial-mesenchymal-transition-by-a-phosphodiesterase-5-inhibitor-via-renal-klotho-expression
#7
Seung Tae Han, Jae Seok Kim, Jun Young Lee, Min Keun Kim, Jin Sae Yoo, Byoung Geun Han, Seung Ok Choi, Jae Won Yang
OBJECTIVES: Phosphodiesterase-5 (PDE-5) inhibitors induces vasodilation in several organs by blocking cyclic GMP (guanosine monophosphate) degradation. However, the existence of alternative mechanism of action in case of an impaired nitric oxide (NO) system remains controversial. Previous studies suggested that decreased NO bioavailability may result in the down-regulation of klotho expression, but the relationship between klotho and NO remains obscure. Therefore, we investigated whether a PDE-5 inhibitor could preserve epithelial mesenchymal transition (EMT) and relationship exists between the NO and renal klotho expression...
October 13, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29029358/topographical-variations-between-splenic-flexure-and-spleen-a-study-with-ct-image-based-reconstruction
#8
Matteo Lavazza, Stefano Rausei, Vincenzo Pappalardo, Davide Inversini, Monica Mangini, Anna Maria Ierardi, Angkoon Anuwong, Hoon Yub Kim, Gianpaolo Carrafiello, Gianlorenzo Dionigi
INTRODUCTION: An issue that is seldom seen in the literature relates the detailed relationship of the splenic flexure (SF) and the spleen-both carefully examined-with a prospective approach in patients undergoing computer tomography (CT) scan. MATERIALS AND METHODS: SF localization has been searched and examined in 120 consecutive CT scans. Several different variables (age, gender, BMI, indication of CT scan, etc.) have been considered. In cooperation with the Radiology Division, we brought to completion a dedicated topographic outline, with the purpose of providing a detailed classification for SF localization...
October 12, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29029245/host-transcription-profile-in-nasal-epithelium-and-whole-blood-of-hospitalised-children-under-two-years-of-age-with-respiratory-syncytial-virus-infection
#9
Lien Anh Ha Do, Johann Pellet, H Rogier van Doorn, Anh Tuan Tran, Bach Hue Nguyen, Thi Thu Loan Tran, Quynh Huong Tran, Quoc Bao Vo, Nguyen Anh Tran Dac, Hong Nhien Trinh, Thi Thanh Hai Nguyen, Bao Tinh Le Binh, Huu Mai Khanh Nguyen, Minh Tien Nguyen, Quang Tung Thai, Thanh Vu Vo, Ngoc Quang Minh Ngo, Thi Kim Huyen Dang, Ngoc Huong Cao, Thu Van Tran, Lu Viet Ho, Bertrand De Meulder, Charles Auffray, Jorrit-Jan Hofstra, Jeremy Farrar, Juliet E Bryant, Menno de Jong, Martin L Hibberd
Most insights into the cascade of immune events following acute respiratory syncytial virus (RSV) infection have been obtained from animal experiments or in vitro models. Here we investigated host gene expression profiles in nasopharyngeal swabs (NP) and whole blood samples during natural RSV and rhinovirus (hRV) infection (acute versus early recovery phase) in 83 hospitalised patients <2 years old with lower respiratory tract infections (LRTI). RSV infection induced strong and persistent innate immune responses including interferon signaling and pathways related to chemokine/cytokine signaling in both compartments...
September 27, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29029169/a-family-affair-family-typologies-of-problems-and-midlife-well-being
#10
Karen L Fingerman, Meng Huo, Jamie L Graham, Kyungmin Kim, Kira S Birditt
Background and Objectives: Midlife adults are a "pivot" generation, responding to parents' and grown children's problems. Yet, some midlife adults may have families where multiple members suffer sorrows, whereas other midlife adults may have families with few problems. This study examined: (a) typologies of problems across generations and (b) associations between profiles of problems and midlife adults' well-being. Research Design and Methods: Midlife adults (N = 633) reported their own, each parent's (n = 868), and grown child's (n = 1,785) physical (e...
September 23, 2017: Gerontologist
https://www.readbyqxmd.com/read/29029164/aging-parents-disabilities-and-daily-support-exchanges-with-middle-aged-children
#11
Meng Huo, Jamie L Graham, Kyungmin Kim, Steven H Zarit, Karen L Fingerman
Background and Objectives: Aging parents often incur disabilities in activities of daily living, which may limit their ability to give support and necessitate increased support from middle-aged children. Research has predominantly assessed disabled parents' retrospective reports of receiving support, but we know little about their daily support exchanges with middle-aged children. This study examined practical support, emotional support, and advice that aging parents with and without disabilities provided and received from middle-aged children, and links between these support exchanges and parents' daily mood...
September 23, 2017: Gerontologist
https://www.readbyqxmd.com/read/29029120/diagnostic-usefulness-of-varicella-zoster-virus-real-time-pcr-with-dna-from-saliva-and-plasma-in-patients-with-herpes-zoster
#12
Seong Yeon Park, Ji Yeun Kim, Ji-Ae Kim, Jisoo Kwon, Sun-Mi Kim, Na Young Jeon, Min-Chul Kim, Yong Pil Chong, Sang Oh Lee, Sang-Ho Choi, Yang Soo Kim, Jun Hee Woo, Sung-Han Kim
Background: We evaluated the diagnostic usefulness of PCR for detecting varicella zoster virus (VZV) infection and reactivation of VZV using saliva and plasma VZV DNA from subjects suspected of having herpes zoster (HZ), and healthy volunteers exposed to stress, respectively. Methods: Study subjects were patients with HZ (n = 52), control patients with zoster-mimicking conditions (n = 30), and healthy university students (n = 27). VZV DNA was examined in saliva and plasma samples by real-time PCR...
September 26, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29029108/relative-risks-of-contributing-factors-to-morbidity-and-mortality-in-adults-with-craniopharyngioma-on-gh-replacement
#13
Kevin C J Yuen, Anders F Mattsson, Pia Burman, Eva-Marie Erfurth, Cecilia Camacho-Hubner, Janet L Fox, Johan Verhelst, Mitchell E Geffner, Roger Abs
Context: Craniopharyngioma (CP) in adults, of either childhood-onset (CO-CP) or adult-onset (AO-CP), is associated with increased morbidity and mortality, but data on the relative risks (RRs) of contributing factors are lacking. Objective: To assess the RRs of factors contributing to morbidity and mortality of adults with CO-CP and AO-CP. Methods: Data on 1,669 CP patients from KIMS (Pfizer International Metabolic Database) were analyzed using univariate and multiple Poisson and Cox regression methods...
September 29, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29029102/nucleos-t-ide-analogue-treatment-for-adult-patients-with-hbeag-positive-chronic-infection-with-genotype-c-hepatitis-b-virus-a-nationwide-real-life-study
#14
Young Chang, Won Hyeok Choe, Dong Hyun Sinn, Jeong-Hoon Lee, Sang Hoon Ahn, Hyewon Lee, Jae-Jun Shim, Dae Won Jun, Soo Young Park, Joon Yeul Nam, Eun Ju Cho, Su Jong Yu, Dong Ho Lee, Jeong Min Lee, Yoon Jun Kim, So Young Kwon, Seung Woon Paik, Jung-Hwan Yoon
Background/Aim: Antiviral treatment for patients in HBeAg-positive chronic hepatitis B virus (HBV) infection is still controversial. We assessed whether antiviral treatment reduces liver disease progression in those patients. Methods: This study included consecutive patients that tested positive for HBeAg with an HBV DNA >20,000 IU/mL, ALT <40 IU/L and without evidence of cirrhosis in eight large-volume hospitals in Korea. The primary endpoint was the development of hepatocellular carcinoma (HCC) and the secondary endpoint was the development of cirrhosis...
September 23, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29029081/rapid-cold-hardening-of-a-subtropical-species-maruca-vitrata-lepidoptera-crambidae-accompanies-hypertrehalosemia-by-upregulating-trehalose-6-phosphate-synthase
#15
Yonggyun Kim, Dae-Weon Lee, Jin Kyo Jung
A subtropical insect, Maruca vitrata (F.) (Lepidoptera: Crambidae), is invasive to temperate zones, in which low temperatures during winter would be a serious challenge for colonization. This study assessed cold tolerance and cold-hardening of M. vitrata to understand its overwintering mechanism. Supercooling capacity was confirmed in all developmental stages exhibiting body freezing points at lower than -10°C, in which supercooling points (SCPs) were significantly different among developmental stages, with eggs having the lowest SCP (at -22...
September 23, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/29029049/intraoperative-naloxone-reduces-remifentanil-induced-postoperative-hyperalgesia-but-not-pain-a-randomized-controlled-trial
#16
C-H Koo, S Yoon, B-R Kim, Y J Cho, T K Kim, Y Jeon, J-H Seo
Background: Intraoperative use of a high-dose remifentanil may induce postoperative hyperalgesia. Low-dose naloxone can selectively reverse some adverse effects of opioids without compromising analgesia. We thus hypothesized that the intraoperative use of a high-dose remifentanil combined with a low-dose naloxone infusion reduces postoperative hyperalgesia compared with the use of remifentanil alone. Methods: Patients undergoing elective thyroid surgery were randomly assigned into one of three groups, depending on the intraoperative effect-site concentration of remifentanil, with or without a continuous infusion of naloxone: 4 ng ml-1 remifentanil with 0...
October 3, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29029040/herbacetin-suppresses-cutaneous-squamous-cell-carcinoma-and-melanoma-cell-growth-by-targeting-akt-and-odc
#17
Dong Joon Kim, Mee-Hyun Lee, KangDong Liu, Do Young Lim, Eunmiri Roh, Hanyong Chen, Sung-Hyun Kim, Jung-Hyun Shim, Myoung Ok Kim, Wenwen Li, Fayang Ma, Mangaladoss Fredimoses, Ann M Bode, Zigang Dong
Herbacetin is a flavonol compound that is found in plants such as flaxseed and ramose scouring rush herb, it possesses a strong antioxidant capacity, and exerts anticancer effects on colon and breast cancer. However, the effect of herbacetin on skin cancer has not been investigated. Herein, we identified herbacetin as a dual V-akt murine thymoma viral oncogene homolog (AKT) and ornithine decarboxylase (ODC) inhibitor, and illustrated its anticancer effects in vitro and in vivo against cutaneous squamous cell carcinoma (SCC) and melanoma cell growth...
September 23, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/29029000/spindle-cell-sarcoma-of-the-mitral-valve-a-rare-indication-for-mitral-valve-replacement
#18
John Nicholas Roche Massey, S Kim Suvarna, Karol Krawczyk, Steven Hunter
Primary cardiac tumours are a rare finding and even rarer cause of valvular heart disease. We report a case of cardiac spindle cell sarcoma mimicking mitral valve stenosis and the subsequent operative management.
September 26, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29028999/control-of-pecan-weevil-with-microbial-biopesticides
#19
David I Shapiro-Ilan, Ted E Cottrell, Clive Bock, Kim Mai, Debbie Boykin, Lenny Wells, William G Hudson, Russell F Mizell
The pecan weevil, Curculio caryae (Horn) (Coleoptera: Curculionidae), is a key pest of pecans Carya illinoinensis ([Wangenh.] K. Koch) (Fagales: Juglandaceae). Control recommendations rely on broad spectrum chemical insecticides. Due to regulatory and environmental concerns, effective alternatives for C. caryae control must be sought for pecan production in conventional and organic systems. We explored the use of microbial biopesticides for control of C. caryae in Georgia pecan orchards. Three experiments were conducted...
September 23, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/29028986/a-new-haplotype-block-detection-method-for-dense-genome-sequencing-data-based-on-interval-graph-modeling-of-clusters-of-highly-correlated-snps
#20
Sun Ah Kim, Chang-Sung Cho, Suh-Ryung Kim, Shelley B Bull, Yun Joo Yoo
Motivation: Linkage disequilibrium (LD) block construction is required for research in population genetics and genetic epidemiology, including specification of sets of single nucleotide polymorphisms (SNPs) for analysis of multi-SNP based association and identification of haplotype blocks in high density sequencing data. Existing methods based on a narrow sense definition do not allow intermediate regions of low LD between strongly associated SNP pairs and tend to split high density SNP data into small blocks having high between-block correlation...
September 29, 2017: Bioinformatics
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