The management and outcome of large volume liposarcomas encasing the sciatic nerve

xlomafota13 shared this article with you from Inoreader The management and outcome of large volume liposarcomas encasing the sciatic nerve Via Journal of plastic, reconstructive & aesthetic surgery : JPRAS J Plast Reconstr Aesthet Surg. 2021 Oct 22:S1748-6815(21)00505-2. doi: 10.1016/j.bjps.2021.09.070. Online ahead of print. ABSTRACT This paper outlines the oncological outcomes of patients with large volume liposarcomas of the posterior thigh who underwent nerve-preserving surgery utilising epineural dissection. Thirty-seven consecutive patients (group I) with a mean age of 66.2 (31-96) were surgically treated with a planned marginal resection and epineurectomy for liposarcoma with known sciatic nerve involvement between March 1997 and January 2015. The mean follow-up was 79 months (15-192). All patients underwent multidisciplinary team (MDT) pre-operative assessment and staging, with follow-up in Sarcoma Clinic. Pre-operative function was assessed by applying the Toronto extremity salvage score (TESS). Oncological and functional outcomes were recorded. In grades 1, 2, and 3, 24, 6, and 7 liposarcomas, respectively, were included with m ean volume 1859 cm3. Sciatic nerve involvement extended for 13-30 cm; in one case, the nerve was abutting the tumour throughout its length. Soft tissue reconstructive surgery was required in three cases. The remainder underwent direct primary closure. Seventeen patients underwent post-operative adjuvant radiotherapy 46-60 Gy and three received chemotherapy. There was local recurrence of disease in three patients. One patient had post-radiation wound breakdown treated non-operatively. Three patients died of an unrelated cause. When compared to a cohort of 37 patients without sciatic nerve involvement (group II), there were no significant differences in local and systemic recurrence rate or post-operative survival. In conclusion, sciatic nerve-preserving surgery is both possible and safe when using a planned epineural dissection in large volume tumours encasing the sciatic nerve. PMID:35063385 | DOI:10.1016/j.bjps.2021.09.070 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Towards decoding selective attention through cochlear implant electrodes as sensors in subjects with contralateral acoustic hearing

xlomafota13 shared this article with you from Inoreader Towards decoding selective attention through cochlear implant electrodes as sensors in subjects with contralateral acoustic hearing Via cortical auditory J Neural Eng. 2022 Jan 21. doi: 10.1088/1741-2552/ac4de6. Online ahead of print. ABSTRACT OBJECTIVES: Focusing attention on one speaker in a situation with multiple background speakers or noise is referred to as auditory selective attention. Decoding selective attention is an interesting line of research with respect to future brain-guided hearing aids or cochlear implants (CIs) that are designed to adaptively adjust sound processing through cortical feedback loops. This study investigates the feasibility of using the electrodes and backward telemetry of a CI to record electroencephalography (EEG). APPROACH: The study population included 6 normal-hearing (NH) listeners and 5 CI users with contralateral acoustic hearing. Cortical auditory evoked potentials (CAEP) and selective attention were recorded using a state-of-the-art high-density scalp EEG and, in the case of CI users, also using two CI electrodes as sensors in combination with t he backward telemetry system of these devices (iEEG). MAIN RESULTS: In the selective attention paradigm with multi-channel scalp EEG the mean decoding accuracy across subjects was 94.8 % and 94.6 % for NH listeners and CI users, respectively. With single-channel scalp EEG the accuracy dropped but was above chance level in 8 to 9 out of 11 subjects, depending on the electrode montage. With the single-channel iEEG, the selective attention decoding accuracy could only be analyzed in 2 out of 5 CI users due to a loss of data in the other 3 subjects. In these 2 CI users, the selective attention decoding accuracy was above chance level. SIGNIFICANCE: This study shows that single-channel EEG is suitable for auditory selective attention decoding, even though it reduces the decoding quality compared to a multi-channel approach. CI-based iEEG can be used for the purpose of recording CAEPs and decoding selective attention. However, the study also points out the need for further tec hnical development for the CI backward telemetry regarding long-term recordings and the optimal sensor positions. PMID:35062007 | DOI:10.1088/1741-2552/ac4de6 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Cuneiform (cuniculatum) variant of oral squamous cell carcinoma revisited: Presentation of two cases and literature review of a rare entity

xlomafota13 shared this article with you from Inoreader Cuneiform (cuniculatum) variant of oral squamous cell carcinoma revisited: Presentation of two cases and literature review of a rare entity Via Head & Neck Abstract Background Oral carcinoma cuniculatum (OCC) is a rare, locally aggressive tumor, which tends to invade underlying bone. We present two cases of OCC, one demonstrating invasion of the mandible and the other limited to the tongue. Methods An 87-year-old male presented with a right-sided buccogingival lesion. Biopsy results led to a diagnosis of verrucous hyperplasia, which was later revised to OCC. Additionally, a 94-year-old female presented with a left lateral tongue lesion. A biopsy showed in-situ and invasive keratinizing squamous cell carcinoma that was later defined as a soft tissue OCC. Results Following surgical resection, the diagnosis of OCC was established in both patients. We provide a comprehensive literature review of OCC in the context of both case presentations. Conclusions OCC is a rare entity, which has a tendency to be misdiagnosed. We emphasize the importance of recognizing the common features of OCC in order to aid in accurate diagnosis. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Intractable Bleeding Following an Awake Bedside Injection Laryngoplasty in a Patient on KVAD ECMO

xlomafota13 shared this article with you from Inoreader Intractable Bleeding Following an Awake Bedside Injection Laryngoplasty in a Patient on KVAD ECMO Via Journal of Voice Awake injection laryngoplasty (IL) is becoming increasingly utilized in the inpatient setting, especially as a therapeutic option for patients with vocal fold immobility immediately following cardiothoracic surgery. While prior studies consistently demonstrate complication rates below 3%, significant bleeding has not been reported as a major complication in any awake IL case series. The objective of this report is to highlight a case of intractable bleeding following awake inpatient bedside IL in a patient on KVAD (Koji Takeda Ventricular Assist Device) extracorporeal membrane oxygenation (ECMO). View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Physical activity ameliorates the function of organs via adipose tissue in metabolic diseases

xlomafota13 shared this article with you from Inoreader Physical activity ameliorates the function of organs via adipose tissue in metabolic diseases Via histochem Acta Histochem. 2022 Jan 16;124(2):151844. doi: 10.1016/j.acthis.2022.151844. Online ahead of print. ABSTRACT Adipose tissue is a dynamic organ in the endocrine system that can connect organs by secreting molecules and bioactive. Hence, adipose tissue really plays a pivotal role in regulating metabolism, inflammation, energy homeostasis, and thermogenesis. Disruption of hub bioactive molecules secretion such as adipokines leads to dysregulate metabolic communication between a dipose tissue and other organs in non-communicable disorders. Moreover, a sedentary lifestyle may be a risk factor for adipose tissue function. Physical inactivity leads to fat tissue accumulation and promotes obesity, Type 2 diabetes, cardiovascular disease, neurodegenerative disease, fatty liver, osteoporosis, and inflammatory bowel disease. On the other hand, physical activity may ameliorate and protect the body against metabolic disorders, triggering thermogenesis, metabolism, mitochondrial biogenesis, β-oxidation, and glucose uptake. Furthermore, physical activity provides an inter-organ association and cross-talk between different tissues by improving adipose tissue function, reprogramming gene expression, modulating molecules and bioactive factors. Also, physical activity decreases chronic inflammation, oxidative stress and improves metabolic features in adipose tissue. The current review focuses on the beneficial effect of physical activity on the cardiovascular, locomotor, digestive, and nervous systems. In addition, we visualize protein-protein interactions networks between hub proteins involved in dysregulating metabolic induced by adipose tissue. PMID:35045377 | DOI:10.1016/j.acthis.2022.151844 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Labyrinthine calcification in ears with otitis media and antineutrophil cytoplasmic antibody-associated vasculitis (OMAAV): A report of two cases

xlomafota13 shared this article with you from Inoreader Labyrinthine calcification in ears with otitis media and antineutrophil cytoplasmic antibody-associated vasculitis (OMAAV): A report of two cases Via Auris Nasus Larynx Publication date: Available online 19 January 2022 Source: Auris Nasus Larynx Author(s): Tadao Yoshida, Masumi Kobayashi, Satofumi Sugimoto, Shinji Naganawa, Michihiko Sone View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Superior Approach of Recurrent Laryngeal Nerve: Review of the Literature

xlomafota13 shared this article with you from Inoreader Superior Approach of Recurrent Laryngeal Nerve: Review of the Literature Via Journal of Thyroid Research The identification and dissection of the recurrent laryngeal nerve is essential to guarantee its anatomical and functional integrity. The superior approach of the recurrent nerve is a reliable surgical alternative. Various indications are recognized with a reliable landmark. This is the entry point into the larynx under the inferior horn of the thyroid cartilage. The limits of this technique, namely, the extralaryngeal divisions and the hemorrhages encountered at the point of entry of the larynx are a source of morbidity of the recurrent laryngeal nerve. A careful dissection, respect for the surgical steps, and the surgeon's experience are guarantees of a good result. We wanted through a review of the literature and our experience in the superior approach to discuss surgical indications, to ident ify landmarks at the point of entry of the larynx, to determine the limits of this approach, and to take precautions to mitigate the risk of recurrent laryngeal nerve injury. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Ear, Nose, Throat, and Bronchial Involvements in VEXAS Syndrome

xlomafota13 shared this article with you from Inoreader Message: VEXAS syndrome (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic) is a monogenic disease of adulthood caused by somatic mutations in UBA1 in hematopoietic progenitor cells. Patients develop inflammatory and hematologic symptoms. VEXAS causes symptoms that included blood clots in veins, recurrent fevers, pulmonary abnormalities and vacuoles (unusual cavity-like structures) in myeloid cells. Ear, Nose, Throat, and Bronchial Involvements in VEXAS Syndrome Via JAMA Otolaryngology–Head & Neck Surgery Online First This case report describes 3 patients with VEXAS syndrome with atypical or not previously described ear, nose, and throat involvement. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

LncRNA NR2F2-AS1 functions as a tumor suppressor in gastric cancer through targeting miR-320b/PDCD4 pathway

xlomafota13 shared this article with you from Inoreader LncRNA NR2F2-AS1 functions as a tumor suppressor in gastric cancer through targeting miR-320b/PDCD4 pathway Via Cellular and Molecular Biology Histol Histopathol. 2022 Jan 20:18429. doi: 10.14670/HH-18-429. Online ahead of print. ABSTRACT Gastric cancer is among the most frequently occurring gastrointestinal malignancies with a high mortality rate worldwide. Long non-coding RNAs (lncRNAs) are defined as core regulators in the occurrence and progression of multiple cancers, including gastric carcinoma. Mounting evidence has indicated that NR2F2-AS1 can inhibit several malignant tumors. However, the function and potential mechanism of NR2F2-AS1 remain unclear. In the current study, we found that NR2F2-AS1 was weakly expressed in gastric cancer cells in comparison with normal cells. The study has further disclosed that ectopic of NR2F2-AS1 repressed cell proliferation, migration, invasion and EMT whereas it promoted cell apoptosis in gastric carcinoma. Subsequently, our results confirmed that miR-320b was negatively regulated and that suppression of miR-320b alleviated the malig nant behaviors of GC cells. More importantly, PDCD4 was a target of miR-320b. Mechanistically, NR2F2-AS1 modulated the expression level of PDCD4 by sponging miR-320b. Finally, rescue assays demonstrated that NR2F2-AS1 down-regulated PDCD4 expression to restrain the development of gastric cancer by competitively binding to miR-320b. On the whole, our study revealed the role of NR2F2-AS1/miR-320b/PDCD4 regulatory network in gastric cancer, suggesting NR2F2-AS1 may represent a novel therapeutic target for patients with gastric carcinoma. PMID:35048354 | DOI:10.14670/HH-18-429 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Increasing the reliability of real-time electrocochleography during cochlear implantation: a standardized guideline

xlomafota13 shared this article with you from Inoreader Increasing the reliability of real-time electrocochleography during cochlear implantation: a standardized guideline 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. 2022 Jan 20. doi: 10.1007/s00405-021-07204-7. Online ahead of print. ABSTRACT PURPOSE: Electrocochleography (ECochG) measures electrical potentials generated by the inner ear in response to acoustic stimulation. Real-time (rt) recordings are increasingly used during cochlear implant (CI) surgeries to monitor the inner ear function. However, the performance of rt-ECochG is a delicate measurement procedure involving several pitfalls, which lead to inaccurate or invalid signal recordings in up to 20%. In order to use the technique routinely in CI candidates, an improvement in measurement reliability must be achieved. METHODS: In our prospective study, we systematically investigated potential pitfalls and error sources during rt-ECochG recordings. We performed experiments (i) on a head and torso simulator, (ii) on a whole-head cadaver specimen, (iii) as well as in vivo during rt-ECochG recordings in CI reci pients. After analyzing experiments i-iii, a standardized measurement procedure was developed. We followed this guideline in 10 CI recipients to test the measurement reliability. RESULTS: Besides improper installation, surgical and patient-specific factors influenced the measured signal. In particular, the unattenuated presentation of the acoustic stimulus was of importance. We summarized our findings in a standardized guideline. Following this guideline, we measured successful intraoperative ECochG recordings in 9/10 patients. CONCLUSIONS: Our error analysis improved the understanding of successful rt-ECochG measurements. When following our proposed guideline, we achieved more reliable intraoperative ECochG recordings. PMID:35048175 | DOI:10.1007/s00405-021-07204-7 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

The Impact of Tyrosine Iodination on the Aggregation and Cleavage Kinetics of MMP-9-Responsive Peptide Sequences

xlomafota13 shared this article with you from Inoreader The Impact of Tyrosine Iodination on the Aggregation and Cleavage Kinetics of MMP-9-Responsive Peptide Sequences Via radioactive iodine ACS Biomater Sci Eng. 2022 Jan 20. doi: 10.1021/acsbiomaterials.1c01488. Online ahead of print. ABSTRACT Matrix metalloproteinase (MMP) enzymes are over-expressed by some metastatic cancers, in which they are responsible for the degradation and remodeling of the extracellular matrix. In recent years, MMPs have emerged as promising targets for enzyme-responsive diagnostic probes because oligopeptides can be designed to be selectively hydrolyzed by exposure to these enzymes. With the ultimate goal of developing radio-iodinated peptides as supramolecular building blocks for MMP-sensitive tools for nuclear imaging and therapy, we designed three MMP-9-responsive peptides containing either tyrosine or iodotyrosine to assess the impact of iodotyrosine introduction to the peptide structure and cleavage kinetics. We found that the peptides containing iodotyrosine underwent more rapid and more complete hydrolysis by MMP-9. While the peptides under investigation were predominantly disordered, it was found that iodination increased the degree of aromatic residue-driven aggregation of the peptides. We determined that these iodination-related trends stem from the improved overall intramolecular order through H- and halogen bonding, in addition to intermolecular organization of the self-assembled peptides due to steric and electrostatic effects introduced by the halogenated tyrosine. These fundamental observations provide insights for the development of enzyme-triggered pep tide aggregation tools for localized radioactive iodine-based tumor imaging. PMID:35050574 | DOI:10.1021/acsbiomaterials.1c01488 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.