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https://www.readbyqxmd.com/read/29351815/ready-to-use-protein-g-conjugated-gold-nanorods-for-biosensing-and-biomedical-applications
#1
S Centi, F Ratto, F Tatini, S Lai, R Pini
BACKGROUND: Gold nanorods (GNRs) display unique capacity to absorb and scatter near infrared light, which arises from their peculiar composition of surface plasmon resonances. For this reason, GNRs have become an innovative material of great hope in nanomedicine, in particular for imaging and therapy of cancer, as well as in photonic sensing of biological agents and toxic compounds for e.g. biomedical diagnostics, forensic analysis and environmental monitoring. As the use of GNRs is becoming more and more popular, in all these contexts, there is emerging a latent need for simple and versatile protocols for their modification with targeting units that may convey high specificity for any analyte of interest of an end-user...
January 19, 2018: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/29351583/travelers-diarrhea-in-thailand-a-quantitative-analysis-using-taqman%C3%A2-array-card
#2
Paphavee Lertsethtakarn-Ketwalha, Sasikorn Silapong, Pimmada Sakpaisal, Oralak Serichantalergs, Nattaya Ruamsap, Woradee Lurchachaiwong, Sinn Anuras, James A Platts-Mills, Jie Liu, Eric R Houpt, Ladaporn Bodhidatta, Brett E Swierczewski, Carl J Mason
Background: Travelers' diarrhea (TD) is a common illness experienced by travelers from developed countries visiting developing countries. Recent questionnaire-based surveillance studies reported that approximately 6-16% of travelers experienced TD while visiting Thailand; however, a majority of TD information was limited mainly to US military populations. Methods: A TD surveillance study was conducted at Bumrungrad International Hospital in 2012-2014 in Bangkok, Thailand...
January 17, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29351242/-vessels-in-the-storm-searching-for-prognostic-and-predictive-angiogenic-factors-in-colorectal-cancer
#3
REVIEW
Adriano Angelucci, Simona Delle Monache, Alessio Cortellini, Monica Di Padova, Ficorella Corrado
High expectations are placed upon anti-angiogenic compounds for metastatic colorectal cancer (mCRC), the first malignancy for which such type of treatment has been approved. Indeed, clinical trials have confirmed that targeting the formation of new vessels can improve in many cases clinical outcomes of mCRC patients. However, current anti-angiogenic drugs are far from obtaining the desirable or expected curative results. Many are the factors probably involved in such disappointing results, but particular attention is currently focused on the validation of biomarkers able to improve the direction of treatment protocols...
January 19, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29350590/human-genetics-and-molecular-mechanisms-of-vein-of-galen-malformation
#4
Daniel Duran, Philipp Karschnia, Jonathan R Gaillard, Jason K Karimy, Mark W Youngblood, Michael L DiLuna, Charles C Matouk, Beverly Aagaard-Kienitz, Edward R Smith, Darren B Orbach, Georges Rodesch, Alejandro Berenstein, Murat Gunel, Kristopher T Kahle
Vein of Galen malformations (VOGMs) are rare developmental cerebrovascular lesions characterized by fistulas between the choroidal circulation and the median prosencephalic vein. Although the treatment of VOGMs has greatly benefited from advances in endovascular therapy, including technical innovation in interventional neuroradiology, many patients are recalcitrant to procedural intervention or lack accessibility to specialized care centers, highlighting the need for improved screening, diagnostics, and therapeutics...
January 19, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29350269/exome-analysis-in-34-sudden-unexplained-death-sud-victims-mainly-identified-variants-in-channelopathy-associated-genes
#5
Jacqueline Neubauer, Maria Rita Lecca, Giancarlo Russo, Christine Bartsch, Argelia Medeiros-Domingo, Wolfgang Berger, Cordula Haas
Sudden cardiac death (SCD) is one of the major causes of mortality worldwide, mostly involving coronary artery disease in the elderly. In contrary, sudden death events in young victims often represent the first manifestation of undetected genetic cardiac diseases, which remained without any symptoms during lifetime. Approximately 30% of these sudden death cases have no definite cardiac etiology after a comprehensive medicolegal investigation and are therefore termed as sudden unexplained death (SUD) cases. Advances in high-throughput sequencing approaches have provided an efficient diagnostic tool to identify likely pathogenic variants in cardiovascular disease-associated genes in otherwise autopsy-negative SUD cases...
January 19, 2018: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29350267/modern-work-up-and-extended-resection-in-perihilar-cholangiocarcinoma-the-amc-experience
#6
REVIEW
F Rassam, E Roos, K P van Lienden, J E van Hooft, H J Klümpen, G van Tienhoven, R J Bennink, M R Engelbrecht, A Schoorlemmer, U H W Beuers, J Verheij, M G Besselink, O R Busch, T M van Gulik
AIM: Perihilar cholangiocarcinoma (PHC) is a challenging disease and requires aggressive surgical treatment in order to achieve curation. The assessment and work-up of patients with presumed PHC is multidisciplinary, complex and requires extensive experience. The aim of this paper is to review current aspects of diagnosis, preoperative work-up and extended resection in patients with PHC from the perspective of our own institutional experience with this complex tumor. METHODS: We provided a review of applied modalities in the diagnosis and work-up of PHC according to current literature...
January 19, 2018: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/29350098/commentary-to-18f-gp1-a-novel-pet-tracer-designed-for-high-sensitivity-low-background-detection-of-thrombi-imaging-activated-platelets-in-clots-are-we-getting-there
#7
Andrew W Stephens, Norman Koglin, Ludger M Dinkelborg
Thrombus formation can lead to heart attacks, stroke and pulmonary embolism, which are major causes of mortality. Current standard diagnostic imaging methods detect anatomic abnormalities such as vascular flow impairment but have limitations. By using a targeted molecular imaging approach critical components of a pathology can be selectively visualized and exploited for an improved diagnosis and patient management. The GPIIb/IIIa receptor is abundantly and specifically exposed on activated platelets and is the key receptor in thrombus formation...
January 2018: Molecular Imaging
https://www.readbyqxmd.com/read/29349668/serum-mmp-9-diagnostics-prognostics-and-activation-in-acute-coronary-syndrome-and-its-recurrence
#8
Laura Lahdentausta, Jaakko Leskelä, Alina Winkelmann, Taina Tervahartiala, Timo Sorsa, Erkki Pesonen, Pirkko J Pussinen
Matrix metalloproteinase (MMP)-9 is crucial in atherosclerotic plaque rupture and tissue remodeling after a cardiac event. The balance between MMP-9 and endogenous inhibitor, tissue inhibitors of matrix metalloproteinase 1 (TIMP-1), is important in acute coronary syndrome (ACS). This is an age- and gender-matched case-control study of ACS (N = 669). Patients (45.7%) were resampled after recovery, and all were followed up for 6 years. The molecular forms of MMP-9 were investigated by gelatin zymography...
January 18, 2018: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/29348845/decreased-expression-of-the-long-non-coding-rna-slc7a11-as1-predicts-poor-prognosis-and-promotes-tumor-growth-in-gastric-cancer
#9
Yajun Luo, Cheng Wang, Peng Yong, Pengcheng Ye, Zilin Liu, Zhiming Fu, Fei Lu, Wanping Xiang, Wang Tan, Jiangwei Xiao
Many lncRNA and mRNA sense-antisense transcripts have been systematically identified in malignant cells. However, the molecular mechanisms of most lncRNA-mRNA pairs in gastric cancer remain largely unknown. We found the gastric cancer-associated lncRNA SLC7A11-AS1 and coding transcript mRNA SLC7A11 in human gastric cancer specimens by microarray. SLC7A11-AS1, antisense to SLC7A11, is significantly down-regulated in gastric cancer and could promote tumor growth in vitro and in vivo. The effects of SLC7A11-AS1 depend on the regulation of SLC7A11 via the ASK1-p38MAPK/JNK signaling pathway...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348591/relapsing-remitting-multiple-sclerosis-diagnosis-from-cerebrospinal-fluids-via-fourier-transform-infrared-spectroscopy-coupled-with-multivariate-analysis
#10
Dilek Yonar, Levent Ocek, Bedile Irem Tiftikcioglu, Yasar Zorlu, Feride Severcan
Multiple sclerosis (MS) is a chronic, progressive, inflammatory and degenerative disease of central nervous system. Here, we aimed to develop a method for differential diagnosis of Relapsing-Remitting MS (RRMS) and clinically isolated syndrome (CIS) patients, as well as to identify CIS patients who will progress to RRMS, from cerebrospinal fluid (CSF) by infrared (IR) spectroscopy and multivariate analysis. Spectral analyses demonstrated significant differences in the molecular contents, especially in the lipids and Z conformation of DNA of CSF from CIS, CIS to RRMS transformed (TCIS) and RRMS groups...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348552/tpglda-novel-prediction-of-associations-between-lncrnas-and-diseases-via-lncrna-disease-gene-tripartite-graph
#11
Liang Ding, Minghui Wang, Dongdong Sun, Ao Li
Accumulating evidences have indicated that lncRNAs play an important role in various human complex diseases. However, known disease-related lncRNAs are still comparatively small in number, and experimental identification is time-consuming and labor-intensive. Therefore, developing a useful computational method for inferring potential associations between lncRNAs and diseases has become a hot topic, which can significantly help people to explore complex human diseases at the molecular level and effectively advance the quality of disease diagnostics, therapy, prognosis and prevention...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348379/the-differences-in-serum-quantitative-specific-ige-levels-induced-by-dermatophagoides-pteronyssinus-dermatophagoides-farinae-and-blomia-tropicalis-sensitization-in-intermittent-and-persistent-allergic-asthma
#12
Agus Joko Susanto, Iris Rengganis, Cleopas M Rumende, Kuntjoro Harimurti
BACKGROUND: house dust mites (HDM) are an important inhalant allergen in allergic asthma. However, molecular diagnostic study of specific IgE to HDM allergens has not been done in Indonesia. In addition, the association of quantitative specific IgE measurement with asthma severity has not been investigatedd. This study aimed to investigate the difference of serum quantitative specific IgE levels induced by Dermatophagoides (D.) pteronyssinus, D. farinae and Blomia tropicalis sensitization in intermittent and persistent allergic asthma...
October 2017: Acta Medica Indonesiana
https://www.readbyqxmd.com/read/29348210/toward-dynamic-structural-biology-two-decades-of-single-molecule-f%C3%A3-rster-resonance-energy-transfer
#13
REVIEW
Eitan Lerner, Thorben Cordes, Antonino Ingargiola, Yazan Alhadid, SangYoon Chung, Xavier Michalet, Shimon Weiss
Classical structural biology can only provide static snapshots of biomacromolecules. Single-molecule Förster resonance energy transfer (smFRET) paved the way for studying dynamics in macromolecular structures under biologically relevant conditions. Since its first implementation in 1996, smFRET experiments have confirmed previously hypothesized mechanisms and provided new insights into many fundamental biological processes, such as DNA maintenance and repair, transcription, translation, and membrane transport...
January 19, 2018: Science
https://www.readbyqxmd.com/read/29346412/a-comparative-analysis-of-preservation-techniques-for-the-optimal-molecular-detection-of-hookworm-dna-in-a-human-fecal-specimen
#14
Marina Papaiakovou, Nils Pilotte, Ben Baumer, Jessica Grant, Kristjana Asbjornsdottir, Fabian Schaer, Yan Hu, Raffi Aroian, Judd Walson, Steven A Williams
BACKGROUND: Proper collection and storage of fecal samples is necessary to guarantee the subsequent reliability of DNA-based soil-transmitted helminth diagnostic procedures. Previous research has examined various methods to preserve fecal samples for subsequent microscopic analysis or for subsequent determination of overall DNA yields obtained following DNA extraction. However, only limited research has focused on the preservation of soil-transmitted helminth DNA in stool samples stored at ambient temperature or maintained in a cold chain for extended periods of time...
January 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29346217/pathological-and-molecular-aspects-to-improve-endoscopic-ultrasonography-guided-fine-needle-aspiration-from-solid-pancreatic-lesions
#15
Hiroyuki Matsubayashi, Keiko Sasaki, Sachiyo Ono, Masato Abe, Hirotoshi Ishiwatari, Akira Fukutomi, Katsuhiko Uesaka, Hiroyuki Ono
Endoscopic ultrasonography-guided fine-needle aspiration (EUS-FNA) has been applied to pancreatic lesions since the 1990s, and its use is now widespread. Improvements in endoscopic devices and sampling techniques have resulted in excellent diagnostic ability for solid pancreatic lesions. However, clinical improvements alone are not responsible for it; pathological aspects have also played important roles. Rapid on-site evaluation minimizes endoscopic procedures, although its value at improving the diagnostic ratio is still debated...
February 2018: Pancreas
https://www.readbyqxmd.com/read/29346034/coagulopathy-in-severe-sepsis-interconnectivity-of-coagulation-and-the-immune-system
#16
Jason M Samuels, Hunter B Moore, Ernest E Moore
BACKGROUND: Disseminated intravascular coagulation (DIC) remains a challenging complication of infection with inadequate treatment and significant morbidity and mortality rates. METHODS: Review of the English-language literature. RESULTS: Disseminated intravascular coagulation arises from the immune system's response to microbial invasion, as well as the byproducts of cell death that result from severe sepsis. This response triggers the coagulation system through an interconnected network of cellular and molecular signals, which developed originally as an evolutionary mechanism intended to isolate micro-organisms via fibrin mesh formation...
January 18, 2018: Surgical Infections
https://www.readbyqxmd.com/read/29345601/vaccine-effectiveness-and-use-of-collar-impregnated-with-insecticide-for-reducing-incidence-of-leishmania-infection-in-dogs-in-an-endemic-region-for-visceral-leishmaniasis-in-brazil
#17
E G Lopes, A P Sevá, F Ferreira, C M Nunes, L B Keid, R M Hiramoto, H L Ferreira, T M F S Oliveira, F G Ovallos, E A B Galati, T J Villegas, D V Bortoletto, S Y O B Valadas, R M Soares
Although a national programme for control of visceral leishmaniosis (VL) is being run in Brazil, the disease continues to spread. This programme is essentially based on culling infected dogs from endemic regions. Thus, there is an urgent need to develop other control measures against VL to deter its advance. Here, a subunit vaccine, a recombinant vaccine, an insecticide-impregnated collar and the associations between these measures were evaluated for reducing the incidence of Leishmania infection in dogs. This was through a cohort study conducted in an endemic region of Brazil, considering the incidence and time of total exposure over a period of 1 year...
January 18, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29344827/molecular-imaging-of-cardiac-remodelling-after-myocardial-infarction
#18
REVIEW
Daniel Curley, Begoña Lavin Plaza, Ajay M Shah, René M Botnar
Myocardial infarction and subsequent heart failure is a major health burden associated with significant mortality and morbidity in western societies. The ability of cardiac tissue to recover after myocardial infarction is affected by numerous complex cellular and molecular pathways. Unbalance or failure of these pathways can lead to adverse remodelling of the heart and poor prognosis. Current clinical cardiac imaging modalities assess anatomy, perfusion, function, and viability of the myocardium, yet do not offer any insight into the specific molecular pathways involved in the repair process...
January 17, 2018: Basic Research in Cardiology
https://www.readbyqxmd.com/read/29344504/new-findings-on-the-pathogenesis-of-distal-renal-tubular-acidosis
#19
REVIEW
Francesco Trepiccione, Federica Prosperi, Luigi Regenburgh de la Motte, Christian A Hübner, Regine Chambrey, Dominique Eladari, Giovambattista Capasso
Background: Distal renal tubular acidosis (dRTA) is characterized by an impairment of the urinary acidification process in the distal nephron. Complete or incomplete metabolic acidosis coupled with inappropriately alkaline urine are the hallmarks of this condition. Genetic forms of dRTA are caused by loss of function mutations of either SLC4A1, encoding the AE1 anion exchanger, or ATP6V1B1 and ATP6V0A4, encoding for the B1 and a4 subunits of the vH+ATPase, respectively. These genes are crucial for the function of A-type intercalated cells (A-IC) of the distal nephron...
December 2017: Kidney Diseases
https://www.readbyqxmd.com/read/29344304/atherosclerosis-is-exacerbated-by-chitinase-3-like-1-in-amyloid-precursor-protein-transgenic-mice
#20
Yu Yeon Jung, Ki Cheon Kim, Mi Hee Park, Youngsik Seo, Heonyong Park, Min Hee Park, Jun Chang, Dae Youn Hwang, Sang Bae Han, Sanghyeon Kim, Dong Ju Son, Jin Tae Hong
Although the important role of amyloid precursor protein (APP) in vascular diseases associated with Alzheimer's disease (AD) has been demonstrated, the underlying molecular mechanisms and physiological consequences are unclear. We aimed to evaluate vascular inflammation and atherosclerosis in Swedish mutant of human APP transgenic (APPsw-Tg) and ApoE-/-/APPsw-Tg mice. We also aimed to explore the mechanisms underlying any changes observed in these mice compared with non-Tg controls. Methods: The transgenic and non-Tg mouse strains were subjected to partial ligation of the left carotid artery to induce atherosclerotic changes, which were measured using histological approaches, immunohistochemistry, quantitative polymerase chain reaction, and gene expression microarrays...
2018: Theranostics
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