Rapamycin suppresses the PI3K/AKT/mTOR signaling pathway by targeting SIRT1 in esophageal cancer

xlomafota13 shared this article with you from Inoreader Rapamycin suppresses the PI3K/AKT/mTOR signaling pathway by targeting <em>SIRT1</em> in esophageal cancer Via Experimental and therapeutic medicine Exp Ther Med. 2021 Oct;22(4):1190. doi: 10.3892/etm.2021.10624. Epub 2021 Aug 17. ABSTRACT Rapamycin, a secondary metabolite produced by Streptomyces hygroscopicus, is known for its pharmacological effects, especially antitumor and immunosuppressive activities. However, the antitumoral effects of rapamycin in human esophageal cancer (EC) are still poorly understood. To investigate the potential of rapamycin in EC treatment, sirtuin 1 (SIRT1) mRNA expression was quantified in the tissue of patients with EC or in EC cell lines using reverse transcription-quantitative PCR. The protein levels of SIRT1 and PI3K/AKT/mTOR were measured via western blotting. Furthermore, cell viability, migration and invasion were investigated by Cell Counting Kit-8, wound healing and Transwell assays, respectively. The present results suggested that SIRT1 expression was upregulated in EC. In vitro, the inhibitory effect of r apamycin on cell viability in EC was strengthened or weakened after small interfering (si)-SIRT1 or pcDNA3.1/SIRT1 transfection. Furthermore, SIRT1 rescued the inhibitory effect of rapamycin on the migration and invasion of EC cells. In vivo, si-SIRT1 or SIRT1 overexpression in mice could enhance or rescue the inhibitory effects of rapamycin on tumor growth. In addition, SIRT1 transfection rescued the decreased level of phosphorylated (p)-PI3K, p-AKT and p-mTOR induced by rapamycin treatment. Taken together, the present results suggested that rapamycin suppressed the cell viability, migration, invasion and PI3K/AKT/mTOR signaling pathway in EC by negatively regulating SIRT1. PMID:34475980 | PMC:PMC8406672 | DOI:10.3892/etm.2021.10624 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

The differential expression of perilipin-2 in hepatoblastoma and its association with prognosis

xlomafota13 shared this article with you from Inoreader The differential expression of perilipin-2 in hepatoblastoma and its association with prognosis Via Cellular and Molecular Biology Histol Histopathol. 2021 Sep 3:18371. doi: 10.14670/HH-18-371. Online ahead of print. ABSTRACT Perilipin-2, a lipid droplet (LD) coating protein, has been found to be involved in cancer progression. However, its role in hepatoblastoma (HB) is undefined. We collected 87 HB samples and the corresponding clinical data. Immunohistochemistry (IHC) staining was performed to detect perilipin-2 and the association of the perilipin-2 expression with clinical characteristics and prognosis was analyzed. The expression of perilipin-2 was increased in fetal HB components in comparison to embryonal HB components. The predominant staining pattern was vesicular in fetal HB cells, while it was granular in embryonal HB cells. Furthermore, strong expression of perilipin-2 was associated with the histopathological type of fetal predominant HB. Although event-free survival (EFS) did not differ to a statistically significant extent between the strong and we ak expression groups in a univariate survival analysis, a multivariate survival analysis revealed that EFS was significantly improved in the strong perilipin-2 expression group. In conclusion, perilipin-2 is differentially expressed in HB and the strong expression of perilipin-2 predicts a better prognosis. PMID:34477212 | DOI:10.14670/HH-18-371 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Speech pathology service enhancement for people with head and neck cancer living in rural areas: Using a concept mapping approach to inform service change

xlomafota13 shared this article with you from Inoreader Speech pathology service enhancement for people with head and neck cancer living in rural areas: Using a concept mapping approach to inform service change Via Head & Neck Abstract Background Speech pathology (SP) services provide swallowing and communication intervention to people with head and neck cancer (HNC) across the continuum of care. However, difficulties exist with access and delivery of services in rural areas. The study aim was to identify actionable goals for SP change, utilizing a concept mapping approach. Methods Eleven SP staff from two regional/remote services completed the concept mapping process. Multivariate analysis and multidimensional scaling were used to develop a final set of prioritized goals for change. Results Between the two participating health services, 30 actionable goals were identified within the "green-zone" on the go-zone graph of importance and changeability. Among the most highly rated areas for change was the need to deliver and receive more support for training, mentoring, and supervision to consolidate skills. Conclusions This methodology enabled identification of prioritized, actionable changes to improve SP services for people with HNC living in regional/remote areas. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Analysis of aerosol production and aerosol dispersion during otologic surgery

xlomafota13 shared this article with you from Inoreader Analysis of aerosol production and aerosol dispersion during otologic surgery 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 3. doi: 10.1007/s00405-021-07059-y. Online ahead of print. ABSTRACT BACKGROUND: As a respiratory disease, the transmission of Coronavirus disease (COVID-19) is mainly caused by small droplets and aerosols. Healthcare personnel are particularly exposed during otologic surgery given the continuity with the nasopharynx, where the viral load is high, and the use of high-speed instruments. The purpose of the present study is to test a model of droplet dispersion produced in the performance of a drilling procedure on human bone to provide information about its distribution and size of the deposit in similar conditions to those of an operating theatre, to design different preventive measures. MATERIAL AND METHOD: A mastoidectomy and trans-labyrinthine approach were performed on an embalmed human corpse using for irrigation during drilling methylene blue dye in physiological saline solution (pss) at a concentration of 0.324 mg/mL. The distribution of the drops was stablished using semi-absorbent papers of size 52 cm × 42 cm covering the area around the dissection field to a radius of 150 cm and on the corpse at different heights to check vertical dispersion. The collected deposit material was analysed with the microscope at different magnification objectives. RESULTS: Droplets between 2 μm and 2.6 cm were obtained. The visualization of the coloured droplets in the horizontal plane at a magnification of 1.5 was detected at 150 cm from the focus of emission of milling particles. DISCUSSION: According to our study, bone drilling with high speed motors under continuous saline irrigation in a haemorrhagic surgical field increases the amount of aerosols exposing healthcare personnel to additional airbone particles. This risk does not end in the operating rooms as particles smaller than 2 μm can be suspended in the air for hours and could exit the operating theatre due to the use of positive pressure systems. Thus, the use of N95, FFP2, FFP3 or PAPRS should be considered and the development of hood systems to prevent the dispersion of aerosols during these procedures should be considered. PMID:34480224 | DOI:10.1007/s00405-021-07059-y View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Hyperspectral imaging and artificial intelligence to detect oral malignancy – part 1 - automated tissue classification of oral muscle, fat and mucosa using a light-weight 6-layer deep neural network

xlomafota13 shared this article with you from Inoreader Hyperspectral imaging and artificial intelligence to detect oral malignancy – part 1 - automated tissue classification of oral muscle, fat and mucosa using a light-weight 6-layer deep neural network Via Head & Face Medicine Hyperspectral imaging (HSI) is a promising non-contact approach to tissue diagnostics, generating large amounts of raw data for whose processing computer vision (i.e. deep learning) is particularly suitable. A... View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Systematic review and meta-analysis of the anatomy of the maxillary artery using the Anatomical Quality Assurance (AQUA) checklist

xlomafota13 shared this article with you from Inoreader Systematic review and meta-analysis of the anatomy of the maxillary artery using the Anatomical Quality Assurance (AQUA) checklist Via radiol anat Surg Radiol Anat. 2021 Sep 4. doi: 10.1007/s00276-021-02825-3. Online ahead of print. ABSTRACT BACKGROUND: The maxillary artery (MA) is one of the terminal branches of the external carotid artery (ECA) and through its branches, it is responsible for vascularizing several organs and muscles of the head and neck, including their surrounding soft tissues, the oral and sinonasal cavities, dura mater, and various cranial nerves. The aim of this study was to conduct a systematic r eview and meta-analysis of maxillary artery anatomy according to the Anatomical Quality Assurance (AQUA) checklist. METHODS: We conducted a systematic search through PubMed, EMBASE, Scopus, ScienceDirect, Web of Science, SciELO, Springerlink, WILEY and BIREME databases. We applied the Anatomical Quality Assurance (AQUA) checklist for analysis the methodological quality of the articles. RESULTS: From a total of 11,759 articles found in the first search, and after applying the inclusion/exclusion criteria, in addition to eliminating duplicate articles, a final number of 24 articles were identified. The information on the maxillary artery was analyzed from each study regarding its course in relation to the lateral pterygoid muscle, the intra- and extraluminal diameters of the maxillary artery and its branches, and the types of branching of the maxillary artery in the pterygopalatine fossa. CONCLUSION: From this study, it was possible to conclude the importance of anat omical knowledge of the maxillary artery, for its application in the clinical study of the head and neck, as well as the need to apply the AQUA checklist in the development of systematic anatomical reviews to ensure accurate reliability and a better assessment of the effect of anatomical publications. PMID:34480213 | DOI:10.1007/s00276-021-02825-3 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

A retrospective study of 44 patients with head and neck Castleman's disease

xlomafota13 shared this article with you from Inoreader A retrospective study of 44 patients with head and neck Castleman's disease 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 4. doi: 10.1007/s00405-021-07065-0. Online ahead of print. ABSTRACT PURPOSE: To explore the clinical and pathological features, therapy and prognosis of Castleman's disease (CD) in the head and neck. METHODS: We retrospectively analyzed the clinical and pathological data of 44 patients with head and neck CD who were diagnosed in the Fujian Medical University Union hospital (Fujian, China) between May 2008 and June 2021. According to the clinical classification, they were divided into two groups, the unicentric CD (UCD, n = 20) and the multicentric CD (MCD, n = 24). Their clinical features, imaging findings, laboratory examination, and treatment results were, respectively, analyzed. RESULTS: The age of UCD patients was younger than that of MCD patients. Most of the UCD patients (80%) were female, with asymptomatic single lymphadenectasis, and the prognosis was favorable; while 70.8% of the MCD patients were male, with multiple lymph nodes throughout the body, and more prone to hepatosplenomegaly, pneumonia, serous effusion, anemia, hypoalbuminemia, elevated globulin, coagulation disorders, etc., the prognosis was bleak. Two cases of MCD patients were with systemic lupus erythematosus (SLE). CONCLUSIONS: UCD usually manifests as asymptomatic single lymph node enlargement, complete surgical resection was the mainstay of treatment modality. MCD has relatively complicated clinical symptoms and poor prognosis, and anti-IL-6 therapy may be effective. PMID:34480599 | DOI:10.1007/s00405-021-07065-0< /p> View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.