Crescent‐shaped skin paddle for a fibular flap: Avoiding skin grafting at the donor site

alexandrossfakianakis shared this article with you from Inoreader Crescent‐shaped skin paddle for a fibular flap: Avoiding skin grafting at the donor site Via Head & Neck Abstract A fibular osteocutaneous flap is the mainstay of oromandibular reconstruction. This report aimed to present a crescent-shaped skin paddle, a novel fibular skin paddle designed to achieve both sufficient intraoral lining and primary closure of the donor site. A 3–5-cm-wide crescent-shaped skin paddle was harvested according to the locations of the distal septocutaneous perforators on preoperative color Doppler sonography. This narrow skin paddle fits well morphologically into the mucosal defect, enabling a reliable intraoral lining. This advantage becomes more evident when the mandibular defect crosses the midline or extends posteriorly to the maxillary tuberosity as the shape of the mucosal defect becomes arcuate. Primary closure of the donor site is easier to achieve because the required width of the crescent-shaped skin paddle is minimized. This method reduces donor-site morbidity associated with skin grafting while ensuring safe intraoral closure with a fibular osteocutaneous flap. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Inverse co-expression of EZH2 and acetylated H3K27 in prostatic tissue

alexandrossfakianakis shared this article with you from Inoreader Inverse co-expression of EZH2 and acetylated H3K27 in prostatic tissue Via Annals of Diagnostic Pathology Publication date: Available online 27 April 2022 Source: Annals of Diagnostic Pathology Author(s): Andrii Puzyrenko, Suresh N. Kumar, Cooley G. Pantazis, Kenneth A. Iczkowski View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Prognostic and therapeutic significance of XPO1 in T-cell lymphoma

alexandrossfakianakis shared this article with you from Inoreader Prognostic and therapeutic significance of XPO1 in T-cell lymphoma Via ScienceDirect Publication: Experimental Cell Research Publication date: Available online 27 April 2022 Source: Experimental Cell Research Author(s): Danian Nie, Xiaohui Xiao, Jiaoting Chen, Shuangfeng Xie, Jie Xiao, Wenjuan Yang, Hongyun Liu, Jieyu Wang, Liping Ma, Yumo Du, Kezhi Huang, Yiqing Li View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Is inhaled zanamivir non-inferior to oral oseltamivir in the treatment of outpatients with influenza?

alexandrossfakianakis shared this article with you from Inoreader Is inhaled zanamivir non-inferior to oral oseltamivir in the treatment of outpatients with influenza? Via Clinical Infectious Diseases Advance Access View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Airflow patterns in double occupancy patient rooms may contribute to roommate-to-roommate transmission of severe acute respiratory syndrome coronavirus 2

alexandrossfakianakis shared this article with you from Inoreader Airflow patterns in double occupancy patient rooms may contribute to roommate-to-roommate transmission of severe acute respiratory syndrome coronavirus 2 Via Clinical Infectious Diseases Advance Access Abstract Background Hospitalized patients are at risk to acquire severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from roommates with unrecognized coronavirus disease 2019 (COVID-19). We hypothesized that airflow patterns might contribute to SARS-CoV-2 transmission in double occupancy patient rooms. Methods A device emitting condensed moisture was used to identify airflow patterns in double occupancy patient rooms. Simulations were conducted to assess transfer of fluorescent microspheres, 5% sodium chloride aerosol, and aerosolized bacteriophage MS2 between patient beds 3 meters apart and to assess the effectiveness of privacy curtains and portable air cleaners in reducing transfer. Results Air flowed from inlet vents in the center of the room to an outlet vent near the door, resulting in air currents flowing toward the bed adjacent to the outlet vent. Fluorescent microspheres (212-250 µm diameter), 5% sodium chlor ide aerosol, and aerosolized bacteriophage MS2 released from the inner bed were carried on air currents toward the bed adjacent to the outlet vent. Closing curtains between the patient beds reduced transfer of each of the particles. Operation of a portable air cleaner reduced aerosol transfer to the bed adjacent to the outlet vent but did not offer a benefit over closing the curtains alone, and in some situations resulted in an increase in aerosol exposure. Conclusion Airflow patterns in double occupancy patient rooms may contribute to risk for transmission of SARS-CoV-2 between roommates. Keeping curtains closed between beds may be beneficial in reducing risk. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Potentiation of antibiotic activity, and efflux pumps inhibition by (2E)‐1‐(4‐aminophenyl)‐3‐(4‐fluorophenyl)prop‐2‐en‐1‐one

alexandrossfakianakis shared this article with you from Inoreader Potentiation of antibiotic activity, and efflux pumps inhibition by (2E)‐1‐(4‐aminophenyl)‐3‐(4‐fluorophenyl)prop‐2‐en‐1‐one Via Fundamental & Clinical Pharmacology Abstract In recent years, bacterial resistance to traditional drugs has increased, and the need to find new effective antibiotics to treat infections caused by multidrug-resistant bacteria has consequently become more important. The current study aimed to evaluate the potentiation of antibiotic activity and efflux pumps inhibition by (2E)-1-(4-aminophenyl)-3-(4-fluorophenyl)prop-2-en-1-one (PA-Fluorine) against the standard and resistant bacterial strains of Staphylococcus aureus and Escherichia coli. The association between PA-Fluorine and ampicillin reduced the MIC, showing a synergistic effect against Staphylococcus aureus. For Escherichia coli, PA-Fluoride did not show any significant results when associated with ampicillin. Ciprofloxacin and chlorpromazine showed synergy with PA-Fluorine on the two studied strains. An efflux pump mechanism was involved in the mechanism of action of chlorpromazine, norfloxacin, and ethidium bromide. PA-Fluorine synerg istically modulated norfloxacin and bromide. It was thus concluded that PA-Fluorine has the potential to enhance antibacterial activity when combined with antibiotics. Molecular docking studies showed the effect of intermolecular interactions of PA-Fluorine on the NorA and MepA efflux pumps. Physicochemical and pharmacokinetic properties were also obtained by ADMET studies for this chalcone, which presents be a strong candidate as an efflux pump inhibitor. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Cochlear Fluid Spaces and Structures of the Gerbil High-Frequency Region Measured Using Optical Coherence Tomography (OCT)

alexandrossfakianakis shared this article with you from Inoreader Cochlear Fluid Spaces and Structures of the  Gerbil High-Frequency Region Measured Using Optical Coherence Tomography (OCT) Via JARO - Journal of the Association for Research in Otolaryngology via MedWorm.com In this study, optical coherence tomography was employed to obtain volumetric images of the high-frequency hook region of the gerbil cochlea, as viewed through the round window, with far better resolution capability than had been possible before. The anatomical structures and fluid spaces of the organ of Corti were segmented and quantified in vivo and over a 90-min postmortem period. We find that the arcuate-zone and pectinate-zone widths change very little postmortem. The volume of the scala tympani between the round-window membrane and basilar membrane and the volume of the inner spiral sulcus decrease in the first 60-min postmortem. While textbook drawings of the  mammalian organ of Corti and cortilymph prominently depict the tunnel of Corti, the outer tunnel is typically missing. This... View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Electrical and Immunohistochemical Properties of Cochlear Fibrocytes in 3D Cell Culture and in the Excised Spiral Ligament of Mice

alexandrossfakianakis shared this article with you from Inoreader Electrical and Immunohistochemical Properties of Cochlear Fibrocytes in 3D Cell Culture and in the Excised Spiral Ligament of Mice Via JARO - Journal of the Association for Research in Otolaryngology via MedWorm.com AbstractFibrocyte degeneration in the cochlear lateral wall is one possible pathology of age-related metabolic hearing loss (presbycusis). Within the lateral wall fibrocytes play a role in potassium recycling and maintenance of the endocochlear potential. It has been proposed that cell replacement therapy could prevent fibrocyte degeneration in the CD/1 mouse model of hearing loss. For this to work, the replacement fibrocytes would need to take over the structural and physiological role of those lost. We have grown lateral wall fibrocytes from neonatal CD/1 mice in a 3D-collagen gel culture with the aim of assessing their functional similarity to native lateral wall fibrocytes, the latter in a slice preparation and in excised spiral ligament pieces. We have compared cultured and native fib... View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Evidence for Loss of Activity in Low-Spontaneous-Rate Auditory Nerve Fibers of Older Adults

alexandrossfakianakis shared this article with you from Inoreader Evidence for Loss of Activity in Low-Spontaneous-Rate Auditory Nerve Fibers of Older Adults Via JARO - Journal of the Association for Research in Otolaryngology via MedWorm.com This study is the first to successfully assess forward-masked recovery functions in both younger and older adults and provides important insights into the structural and functional changes occurring in the AN with increasing age. (Source: JARO - Journal of the Association for Research in Otolaryngology) View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Intracochlear Sound Pressure Measurements in Normal Human Temporal Bones During Bone Conduction Stimulation

alexandrossfakianakis shared this article with you from Inoreader Intracochlear Sound Pressure Measurements in Normal Human Temporal Bones During Bone Conduction Stimulation Via JARO - Journal of the Association for Research in Otolaryngology via MedWorm.com AbstractBone conduction (BC) is heavily relied upon in the diagnosis and treatment of hearing loss, but is poorly understood. For example, the relative importance and frequency dependence of various identified BC sound transmission mechanisms that contribute to activate the cochlear partition remain unknown. Recently, we have developed techniques in fresh human cadaveric specimens to directly measure scalae pressures with micro-fiberoptic sensors, enabling us to monitor the input pressure drive across the cochlear partition that triggers the cochlear traveling wave during air conduction (AC) and round-window stimulation. However, BC stimulation poses challenges that can result in inaccurate intracochlear pressure measurements. Therefore, we have developed a new technique described here tha... View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

gom1 Mutant Mice as a Model of Otitis Media

alexandrossfakianakis shared this article with you from Inoreader gom1 Mutant Mice as a Model of Otitis Media Via JARO - Journal of the Association for Research in Otolaryngology via MedWorm.com AbstractOtitis media (OM) disease is a common cause of hearing loss that is primarily the result of middle ear infection. At present, our understanding of the mechanisms leading to OM is limited due to the lack of animal models of OM with effusion (OME). Here, we report that the mice withgenetic otitis media one (gom1) mutants are prone to OM.gom1 Mice were produced by theN-ethyl-N-nitrosourea (ENU) mutagenesis program as an animal model to study OM. These mice demonstrate many common features of OM, such as middle ear effusion and hearing impairment. We revealed thatgom1 mice display various signs of middle ear and inner ear dysfunctions, including elevated thresholds of auditory-evoked brainstem response (ABR) and lack of cochlear microphonic responses. Decreased compliance in  tympanom... View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Influence of Grading on Management and Outcome in Mucoepidermoid Carcinoma of the Parotid—A Multi‐institutional Analysis

alexandrossfakianakis shared this article with you from Inoreader Influence of Grading on Management and Outcome in Mucoepidermoid Carcinoma of the Parotid—A Multi‐institutional Analysis Via The Laryngoscope Objective To evaluate clinical outcome of low (G1), intermediate (G2), and high-(G3) grade mucoepidermoid carcinomas (MEC) of the parotid gland. Study Design Retrospective chart review including 212 patients. Clinicopathological data was statistically analyzed regarding grading, overall survival (OS), disease-free survival (DFS) and disease-specific survival (DSS). Results 105 (49.5%) G1, 73 (34.5%) G2, and 34 (16%) G3 MEC were included and 56 (26.4%) patients presented with neck node metastases. The risk of occult nodal metastases was significantly associated with grading and increased from 9.2% in G1 to 26.7% and 27.8% in G2 and G3 tumors, respectively (p = 0.008). Elective periparotid and cervical lymph node dissection was performed in 170 (80.2%) and 70 (33%) patients, respectively. All patients with positive periparotid nodes when subjected to an additional neck dissection had associated cervical neck node involvement (p < 0.001). Grading was an independent significant prognostic factor for OS (HR 4.05; 95%CI: 1.15–14.35; p = 0.030) and DSS (HR 17.35; 95%CI: 1.10–273.53; p = 0.043). In a subgroup analysis, elective neck dissection (END) was also significantly associated with a better DFS (p = 0.041) in neck node-negative G1 MECs. Conclusion The risk of occult nodal metastasis in intermediate-grade MEC is as high as in high-grade MEC and that END in G1 tumors is associated with a prolonged DFS. Additionally, periparotid node involvement seems to be a predictor for positive neck node involvement. This study presents some preliminary data to consider END in clinically neck node negative patients with parotid MEC; however, larger series are needed. Level of Evidence 3 Laryngoscope, 2022 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Blinatumomab overcomes poor prognostic impact of measurable residual disease in pediatric high‐risk first relapse B‐cell precursor acute lymphoblastic leukemia

alexandrossfakianakis shared this article with you from Inoreader Blinatumomab overcomes poor prognostic impact of measurable residual disease in pediatric high‐risk first relapse B‐cell precursor acute lymphoblastic leukemia Via Pediatric Blood & Cancer Abstract Background Blinatumomab, a CD3/CD19 BiTE® (bispecific T cell engager) molecule, was superior to high-risk third course consolidation chemotherapy (HC3) in prolonging event-free survival (EFS) in children with high-risk first relapse B-cell precursor acute lymphoblastic leukemia (B-ALL). Here, we report results from a post hoc measurable residual disease (MRD) analysis of this phase 3 study (NCT02393859). Procedure Children >28 days and <18 years with high-risk first-relapse B-ALL in cytomorphological complete remission (M1 marrow, <5% blasts) or with M2 marrow (≥5% and <25% blasts) after induction and two cycles of high-risk consolidation chemotherapy (baseline) were enrolled in this trial. Patients received one cycle of blinatumomab (15 μg/m2/day, 4 weeks, continuous intravenous infusion) or HC3. The primary endpoint was EFS. In this post hoc analysis, patients with MRD <10–4 by PCR were grouped as having positive but not quantifiable (pbnq) or undetectable disease. Results A higher proportion of patients with MRD <10–4 had undetectable versus pbnq disease after blinatumomab (day 29) than after HC3 (p = 0.0367). Of the 22 patients with MRD ≥10–4 at baseline who achieved MRD remission after blinatumomab, 20 (91%) achieved MRD <10–4 remission by day 15. Patients treated with blinatumomab had improved EFS and overall survival compared with those treated with HC3 independent of end-of-induction or baseline (end-of-second consolidation) MRD levels. Conclusions Blinatumomab was more efficacious than HC3 regardless of MRD status before treatment. These data support the role of blinatumomab in inducing deep MRD remission, negating the poor prognostic value of MRD. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.