Clinical predictors of internal carotid artery blowout in patients with radiated nasopharyngeal carcinoma

xlomafota13 shared this article with you from Inoreader Clinical predictors of internal carotid artery blowout in patients with radiated nasopharyngeal carcinoma Via Head & Neck Abstract Background The primary objective is to identify clinical predictors of internal carotid artery (ICA) blowout in radiated nasopharyngeal carcinoma (NPC). Methods Seventeen ICA blowouts, 14 external carotid artery (ECA) bleeds, and 60 controls were identified from January 1, 2007 to July 31, 2020. Multinomial logistic regression was performed to identify features predictive of ICA blowouts. Results Headache was significantly more common among ICA blowouts than ECA bleeds and controls (58.8% vs. 7.1% vs. 6.7%, p < 0.001). The petrous skull base and sphenoid sinus lateral wall was eroded in all petrous and cavernous segment blowouts, respectively. Nasoendoscopy showing exposed clivus (OR 20.5, 95%CI 1.3–324.2) and computed tomography demonstrating skull base erosion (OR 17.8, 95%CI 1.0–311.0) were significantly associated with ICA blowouts compared to controls. Conclusions Findings of headache and skull base erosion on nasoendoscopy or imaging during NPC surveillance warrants prophylactic intervention to avoid an ICA blowout. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

3D Real IR MR Findings in Acoustic Neuromas: Altered Perilymph Metabolism

xlomafota13 shared this article with you from Inoreader 3D Real IR MR Findings in Acoustic Neuromas: Altered Perilymph Metabolism Via ear nose throat Ear Nose Throat J. 2021 Sep 24:1455613211047124. doi: 10.1177/01455613211047124. Online ahead of print. ABSTRACT OBJECTIVES: This study aimed to investigate the perilymph metabolism by analyzing the 3D real IR MR findings in acoustic neuroma (AN) after intravenous administration of gadolinium (Gd). METHODS: Eleven patients (6 men and 5 women) diagnosed with AN were included, and 3D real IR MRI was performed 4 hours after intravenous Gd injection. The signal intensity a nd details of inner ear, tumor, and internal auditory canal (IAC) by MRI were analyzed. RESULTS: Four patients had tumors confined to the IAC, and 5 had tumors that extended to the cerebellopontine angle cistern. The signal intensity of the cochlea, vestibule, and IAC fundus was conspicuously enhanced in 3D real IR images than the control side. One patient had a tumor in the cochlea, in which the signal intensity of the semicircular canal and vestibule was increased. One patient had an intravestibular tumor in which the signal intensity of the semicircular canal was increased and the cochlea had endolymphatic hydrops in the affected ear. CONCLUSIONS: The synchronously increased signal intensity in the inner ear and IAC may indicate that IAC may serve as a channel for removal of the perilymph in the inner ear; the blockage by the tumor may have changed the hydrodynamics of the perilymph to cause a longer retention of Gd in the inner ear. PMID:34560831 | DOI:10.1177/01455613211047124 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

The transcriptional characteristics of mast cells derived from skin tissue in type 2 diabetes patients at the single-cell level

xlomafota13 shared this article with you from Inoreader The transcriptional characteristics of mast cells derived from skin tissue in type 2 diabetes patients at the single-cell level Via histochem Acta Histochem. 2021 Sep 21;123(7):151789. doi: 10.1016/j.acthis.2021.151789. Online ahead of print. ABSTRACT OBJECTIVES: The mechanisms underlying the role of mast cells in wound healing have not been thoroughly studied, and even fewer data are available on studies related to mast cells in the skin of patients with type 2 diabetes mellitus (T2DM). Therefore, this study aims to explore the transcriptional characteristics of mast cells at the single-cell level in patients wit h T2DM and provide experimental data for studying mast cell behaviors under abnormal glucose metabolism. METHODS: Two patients with T2DM and one trauma patient without diabetes were enrolled. Samples were derived from skin tissue resected at the time of surgery and were isolated by single cell capture technology on BD platform to prepare single cell cDNA library. Seurat was used to process raw reads and analyze data downstream of single-cell RNA sequencing, including removal of low-quality cells, identification of cell clusters at the single-cell level, and screening for differential genes with fold change > 1.5 and p < 0.05 by two-sided t-test. We performed single-cell RNA sequencing on skin tissues of T2DM patients and non-diabetics and identified the cell cluster of skin, single-cell subsets, and transcriptional characteristics of mast cells at a single-cell level. Meanwhile, gene set enrichment(GSEA) analysis was performed on the differentially expressed genes. RESULTS: A total of 8888 cells were obtained from skin tissue. Clustering analysis revealed eight-cell clusters, identified as smooth muscle cells, dendritic cells, mast cells, and T cells, respectively. Cluster 6 was identified as mast cells with the marker genes TPSAB1, CPA3, TPSB2, MS4A2,KIT, etc., which accounting for 2.7% of the total cell number.Compared with the control group, the genes highly expressed in MCs from T2DM patients, include ADH1C, PAXIP1, HAS1, ARG1, etc., and the low expression genes include PHACTR2, GGA1, RASSF2, etc. GSEA analysis suggested that the signal pathways of MCS in T2DM patients included VEGF signaling pathway, Fc gamma R-mediated phagocytosis, the B cell receptor signaling pathway, natural killer cell-mediated cytotoxicity. CONCLUSIONS: The characteristic genes of MCs in the skin tissues of T2DM patients were described at the single-cell level. These genes and enriched signaling pathways provide a theoretical basis and data support for furth er researches on dermatopathy in patients with diabetes mellitus. PMID:34560403 | DOI:10.1016/j.acthis.2021.151789 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Interest of the bc-GenExMiner web tool in oncology

xlomafota13 shared this article with you from Inoreader Interest of the bc-GenExMiner web tool in oncology Via Association française pour l'étude du cancer Bull Cancer. 2021 Sep 21:S0007-4551(21)00299-X. doi: 10.1016/j.bulcan.2021.05.008. Online ahead of print. ABSTRACT We are taking advantage of the launch of the latest version (v4.6) of our web-based data mining tool "breast cancer gene-expression miner" (bc-GenExMiner) to take stock of its position within the oncology research landscape and to present an activity report ten years after its establishment (http://bcgenex.ico.unicancer.fr). bc-GenExMiner is an open-access, user-friendly tool for statistical mining on breast tumor transcriptomes, annotated with more than 20 clinicopathologic and molecular characteristics. The database comprises more than 16,000 patients from 64 cohorts - including TCGA, METABRIC and SCAN-B - for whom several thousands of genes have been quantified by microarrays or RNA-seq. Correlation, expression and prognostic analyses are available for targeted, exhaustive or customized explorations of queried genes. bc -GenExMiner facilitates the validation, investigation, and prioritization of discoveries and hypotheses on genes of interest. It allows users to analyse large databases, create data visualizations, and obtain robust statistical analysis, thereby accelerating biomarker discovery. Ten years after its launch, judging by the number of visits, analyses, and scientific citations of bc-GenExMiner, we conclude that this web resource serves its purpose in the international scientific community working in breast cancer research, with a never-ending rise in its use. PMID:34561023 | DOI:10.1016/j.bulcan.2021.05.008 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

A rare case report: bilateral occipital artery arising from the vertebral artery

xlomafota13 shared this article with you from Inoreader A rare case report: bilateral occipital artery arising from the vertebral artery Via radiol anat Surg Radiol Anat. 2021 Sep 24. doi: 10.1007/s00276-021-02842-2. Online ahead of print. ABSTRACT BACKGROUND: Variations of the origin of the occipital artery (OA) can be considered as congenital anomalies that are often asymptomatic and detected incidentally on angiography or during cadaver dissection. While OA normally originates from the posterior aspect of the external carotid artery (ECA), recent evidence also reflects that OA may infrequently originate from the internal carotid artery (ICA); however, OA originating from the vertebral artery (VA) is a highly rare phenomenon. CASE PRESENTATION: In a 54-year-old female patient with the complaint of left hemiparesis, computed tomography (CT) angiography revealed nonstenotic calcified plaques at the beginning of right ICA where common carotid artery (CCA) bifurcates. We also incidentally observed that bilateral OA originated from the VA using maximum intensity projection (MIP) technique. In addition to this rare variation, CT angiography showed the osseous anomaly termed as high-riding VA (HRVA) in the C1/2 vertebral space of the V3 segment of the VA. CONCLUSION: To the best of our knowledge, a case of bilateral OA originating from the VA has not been reported to date. We believe that recognition of this rare variation may contribute to the relevant literature and it is of importance to consider this variation in radiological imaging and surgical procedures involving this region. PMID: 34561718 | DOI:10.1007/s00276-021-02842-2 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Evaluation of retrootolithic function using galvanic vestibular-evoked myogenic potentials in patients with benign paroxysmal positional vertigo

xlomafota13 shared this article with you from Inoreader Evaluation of retrootolithic function using galvanic vestibular-evoked myogenic potentials in patients with benign paroxysmal positional vertigo Via http://link.springer.com/journal/405,European archives of oto-rhino-laryngology,The European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino Eur Arch Otorhinolaryngol. 2021 Sep 25. doi: 10.1007/s00405-021-07094-9. Online ahead of print. ABSTRACT PURPOSE: The purpose is to investigate possible vestibulopathy in patients with benign paroxysmal positional vertigo (BPPV), inner ear tests, including cervical and ocular vestibular-evoked myogenic potentials (cVEMPs and oVEMPs) via various stimulation modes, were adopted. METHODS: Fifty BPPV patients were enrolled in this study. All patients underwent pure tone audiometry, cVEMPs, oVEMPs, and caloric tests. The recurrence status, abnormal rates of inner ear tests, and the characteristic parameters of VEMPs, such as wave latencies and amplitudes, were analyzed. RESULTS: In affected ears, the abnormal rates of acoustic cVEMPs, vibratory oVEMPs, galvanic cVEMPs, and galvanic oVEMPs were 62%, 28%, 36%, and 14%, respectively. The abnormalities of acoustic cVEMPs were significantly larger than those of vibratory oVEMPs, and acoustic/vibratory VEMPs had significantly higher abnormal rates than the corresponding galvanic VEMPs. CONCLUSION: BPPV patients may have both otolithic and neural dysfunctions. Otolithic organ damage occurs more frequently than retrootolithic neural degeneration, and the saccular macula might have a greater extent of damage than the utricular macula. PMID:34562111 | DOI:10.1007/s00405-021-07094-9 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Lachnospira is a signature of antihistamine efficacy in chronic spontaneous urticarial

xlomafota13 shared this article with you from Inoreader Lachnospira is a signature of antihistamine efficacy in chronic spontaneous urticarial Via Experimental Dermatology Abstract Chronic spontaneous urticaria (CSU) is a mast cell-driven disease with many advances in its etiology and pathogenesis over the past years. The main treatment of CSU is oral second-generation antihistamines. However, only an average of 50% of CSU patients responded adequately to conventional or quadruple doses of non-sedative antihistamines. Meanwhile, gut microbiota can affect the efficacy of drugs. The purpose of this study was to investigate the relationship between gut microbiota and the efficacy of antihistamines in patients with CSU. The patients with CSU were divided into responders and non-responders according to the efficacy of antihistamine monotherapy. The gut microbiota of fecal samples from 15 responders and 15 non-responders was detected by 16S rDNA sequencing, and the differential bacterial species between the two groups were verified by quantitative polymerase chain reaction (qPCR). Additional fecal samples from 30 responders and 30 non-responders were used as an ex tended cohort to further verify the above differential bacterial species by qPCR. Lachnospiraceae and its subordinate taxa were found to be the main differences in gut microbiota between responders and non-responders. The abundance of Lachnospira in responders was higher than that in non-responders. Lachnospira exhibits moderate diagnostic value in evaluating the efficacy of antihistamine. Lachnospira is a signature for predicting the efficacy of antihistamine in patients with CSU. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.