Enhancing terahertz molecular fingerprint detection by a dielectric metagrating

2020 ◽  
Vol 45 (8) ◽  
pp. 2335
Author(s):  
Jinfeng Zhu ◽  
Shan Jiang ◽  
Yinong Xie ◽  
Fajun Li ◽  
Lianghui Du ◽  
...  
Author(s):  
Seyed Hadi Badri ◽  
Mohsen Mohammadzadeh Gilarlue ◽  
Sanam Nahaie ◽  
Jong Su Kim

2020 ◽  
Vol 7 (19) ◽  
pp. 2000605
Author(s):  
Prajith Karadan ◽  
Amir Ziv ◽  
Avra Tzaguy ◽  
Shira Yochelis ◽  
Yossi Paltiel ◽  
...  

2020 ◽  
Vol 27 ◽  
Author(s):  
Maria V. Deligiorgi ◽  
Mihalis I. Panayiotidis ◽  
Gerasimos Siasos ◽  
Dimitrios T. Trafalis

: Beyond being epiphenomenon of shared epidemiological factors, the integration of osteoporosis (OP) with cardiovascular disease (CVD)− termed "calcification paradox"− reflects a continuum of aberrant cardiometabolic status. The present review provides background knowledge on "calcification paradox", focusing on the endocrine aspect of vasculature orchestrated by the osteoblastic molecular fingerprint of vascular cells, acquired via imbalance among established modulators of mineralization. Osteoprotegerin (OPG)–the well-established osteoprotective cytokine−has recently been shown to exert a vessel-modifying role. Prompted by this notion, the present review interrogates OPG as the potential missing link between OP and CVD. However, so far, the confirmation of this hypothesis is hindered by the equivocal role of OPG in CVD, being both proatherosclerotic and antiatherosclerotic. Further research is needed to illuminate whether OPG could be biomarker of the "calcification paradox". Moreover, the present review brings into prominence the dual role of statins−cardioprotective and osteoprotective− as potential illustration of the integration of CVD with OP. Considering that the statins-induced modulation of OPG is central to the statins-driven osteoprotective signalling, statins could be suggested as illustration of the role of OPG in the bone/vessels crosstalk, if further studies consolidate the contribution of OPG to the cardioprotective role of statins. Another outstanding issue that merits further evaluation is the inconsistency of the osteoprotective role of statins. Further understanding of the varying bone-modifying role of statins, likely attributed to the unique profile of different classes of statins defined by distinct physicochemical characteristics, may yield tangible benefits for treating simultaneously OP and CVD.


2019 ◽  
Vol 70 (1) ◽  
pp. e830
Author(s):  
Anne Höfer ◽  
Danny Jonigk ◽  
Björn Hartleben ◽  
Robert Geffers ◽  
Murielle Verboom ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4220
Author(s):  
Massimo Chessa ◽  
Mario Panebianco ◽  
Sara Corbu ◽  
Milena Lussu ◽  
Angelica Dessì ◽  
...  

Bicuspid aortic valve (BAV) is the most common congenital heart defect responsible for valvular and aortic complications in affected patients. Causes and mechanisms of this pathology are still elusive and thus the lack of early detection biomarkers leads to challenges in its diagnosis and prevention of associated cardiovascular anomalies. The aim of this study was to explore the potential use of urine Nuclear Magnetic Resonance (NMR) metabolomics to evaluate a molecular fingerprint of BAV. Both multivariate and univariate statistical analyses were performed to compare the urinary metabolome of 20 patients with BAV with that of 24 matched controls. Orthogonal partial least squared discriminant analysis (OPLS-DA) showed statistically significant discrimination between cases and controls, suggesting seven metabolites (3-hydroxybutyrate, alanine, betaine, creatine, glycine, hippurate, and taurine) as potential biomarkers. Among these, glycine, hippurate and taurine individually displayed medium sensitivity and specificity by receiver operating characteristic (ROC) analysis. Pathway analysis indicated two metabolic pathways likely perturbed in BAV subjects. Possible contributions of gut microbiota activity and energy imbalance are also discussed. These results constitute encouraging preliminary findings in favor of the use of urine-based metabolomics for early diagnosis of BAV.


Diagnostics ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 43
Author(s):  
Armida Sodo ◽  
Martina Verri ◽  
Andrea Palermo ◽  
Anda Mihaela Naciu ◽  
Marialuisa Sponziello ◽  
...  

Follicular patterned nodules are sometimes complex to be classified due to ambiguous nuclear features and/or questionable capsular or vascular invasion. In this setting, there is a poor inter-observer concordance even among expert pathologists. Raman spectroscopy was recently used to separate benign and malignant thyroid nodules based on their molecular fingerprint; anyway, some histologically proved follicular adenomas were clustered as having a characteristic profile of malignant lesions. In this study, we analyzed five follicular thyroid adenomas with a malignant spectroscopic profile compared to five follicular adenomas with a benign Raman spectrum in order to assess possible molecular differences between the two groups. Morphological, immunohistochemical, and molecular analyses evidenced expression of malignancy-associated proteins in four out of five malignant clustered adenomas. The remaining malignant clustered adenoma showed a TSHR mutation previously associated with autonomously functioning follicular carcinomas. In conclusion, thyroid follicular adenomas are a group of morphologically benign neoplasms that may have altered the mutational or expression profile; cases of adenomas with altered immunophenotype are recognized as showing a profile associated with malignancy by Raman spectroscopy. This correlation warrants a more extensive evaluation and suggests a potential predictive value of spectroscopic assessment in recognizing characteristics associated with tumor progression in follicular thyroid neoplasms.


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