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https://www.readbyqxmd.com/read/28815373/autologous-nasal-chondrocytes-delivered-by-injectable-hydrogel-for-in-vivo-articular-cartilage-regeneration
#1
Wenliang Chen, Changhua Li, Maoxiu Peng, Bingju Xie, Lei Zhang, Xiaojun Tang
Cell based tissue engineering serves as a promising strategy for articular cartilage repair, which remains a challenge both for researchers and clinicians. The aim of this research was to assess the potential of autologous nasal chondrocytes (NCs) combined with alginate hydrogel as injectable constructs for rabbit articular cartilage repair. Autologous nasal chondrocytes were isolated from rabbit nasal septum, expanded either on monolayer or in 3D alginate hydrogel. In vitro, DNA quantification revealed that NCs can proliferate stable in 3D alginate matrix, but slower than that cultured in monolayer...
August 16, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28814353/pre-and-postoperative-blood-neutrophil-to-lymphocyte-and-eosinophil-to-lymphocyte-ratios-in-patients-with-sinonasal-polyps-a-preliminary-investigation
#2
Giuseppe Brescia, Umberto Barion, Claudia Zanotti, Daniela Parrino, Gino Marioni
BACKGROUND: Identifying specific endotypes within the broad picture of chronic rhinosinusitis with nasal polyps (CRSwNP), by using biomarkers for instance, remains a challenge. The prognostic role of the neutrophil-to-lymphocyte ratio (NLR) and the eosinophil-to-lymphocyte ratio (ELR) as potential markers of inflammation has already been discussed. OBJECTIVE: The aim of the present study was to compare NLR and ELR before and after endoscopic sinus surgery (ESS) and nasal mometasone furoate for CRSwNP by stratifying patients by their clinical and histologic features...
September 1, 2017: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/28802374/secondary-encephalocele-in-infant-following-subdural-empyema-repaired-endoscopically-a-case-report
#3
Roshan K Verma, Navjot Kaur
Subdural empyema (SDE) is an uncommon entity, mostly associated with meningitis and can be life threatening in infants. Rarely, a subdural empyema can lead to nasal encephalocele which can be challenging situation to manage especially in infant. We present a case of 7 month old infant who presented with subdural empyema that led to formation of nasal encaphalocele after 4 months which was managed endoscopic route.
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28796661/fms-like-tyrosine-kinase-3-ligand-attenuates-local-and-systemic-infection-in-a-model-of-post-burn-pneumonia
#4
Gabriel Hundeshagen, Weihua Cui, Lindsay Musgrove, Aaron Cherry, Seung-Jin Lee, Robert A Cox, Tracy Toliver-Kinsky
BACKGROUND: Burn injury induces immunosuppression and promotes infection with opportunistic pathogens. Pneumonia and sepsis are leading causes of post-burn morbidity and mortality. Fms-like tyrosine kinase-3 ligand (Flt3L) improves local and systemic resistance to P. aeruginosa-associated burn wound infection. This study evaluates the effects of post-burn prophylactic Flt3L treatment on local and systemic infection and inflammation in a murine model of pneumonia and sepsis. METHODS: Mice received a severe scald burn, were treated with Flt3L or vehicle (CTR) for 5 days and inoculated trans-nasally with P...
August 7, 2017: Shock
https://www.readbyqxmd.com/read/28789849/protective-effects-of-high-potency-fmdv-o1-manisa-monovalent-vaccine-in-cattle-challenged-with-fmdv-o-skr-2010-at-7-or-4-days-post-vaccination
#5
Jacquelyn Horsington, Claudia Beascoechea Perez, Eduardo Maradei, Sabrina Galdo Novo, Jose L Gonzales, Nagendrakumar B Singanallur, Paula Bonastre, Wilna Vosloo
Serotype O foot-and-mouth disease (FMD) virus belonging to the SEA topotype continues to be a significant problem in the Eastern Asia region, with outbreaks in Japan and South Korea resulting in the culling of over 3.5 million cattle and pigs in recent years. High-potency O1 Manisa vaccine was previously shown to provide protection in cattle 21days post vaccination (dpv) following challenge with a representative virus, O/SKR/2010. This study tested the ability of the O1 Manisa vaccine to protect cattle from infection and disease with the O/SKR/2010 virus within just 4 or 7days post vaccination...
August 5, 2017: Vaccine
https://www.readbyqxmd.com/read/28780422/efficacy-of-a-high-potency-o1-manisa-monovalent-vaccine-against-heterologous-challenge-with-foot-and-mouth-disease-virus-of-o-sea-mya-98-lineage-in-sheep
#6
N B Singanallur, J M Pacheco, J Arzt, C Stenfeldt, G T Fosgate, L Rodriguez, W Vosloo
Potency tests for commercial oil-adjuvanted foot-and-mouth disease (FMD) vaccines are usually carried out in cattle, using a full dose (2 ml) of vaccine and homologous virus challenge. However, in sheep the recommended vaccine dose is half of the cattle dose (1 ml) and most vaccines have not been potency tested for this species, especially with heterologous viruses. To determine the efficacy of a high potency (>6PD50) FMD virus (FMDV) O1Manisa vaccine in sheep, we carried out a study using a heterologous FMDV (FMDV O/SKR/2010 - Mya-98 strain) challenge...
August 3, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28767593/the-mini-incision-technique-for-carpal-tunnel-release-using-nasal-instruments-in-chinese-patients
#7
Yanhua Chen, Wei Ji, Tao Li, Xiaobin Cong, Zhenbing Chen
Treatment of carpal tunnel syndrome (CTS) remains a challenge for hand surgeons. Carpal tunnel release (CTR) using nasal instruments has the advantages of both endoscopy and open surgery. In this study we aimed to explore the effectiveness of CTR using nasal instruments in Chinese patients.We present a case series of 49 cases of idiopathic CTS treated with the mini-incision technique using nasal instruments. The average recovery days before return to normal work and complications were recorded. The mean grip strength, pinch strength, and sensation were evaluated...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28766977/surgical-management-of-supraglottic-stenosis-using-intubationless-optiflow
#8
Kenric Tam, Caroline Jeffery, C Kwang Sung
OBJECTIVE: Airway management during endoscopic surgical treatment of supraglottic and pharyngeal stenosis is often challenging and can be accomplished by various means, including tracheostomy, jet ventilation, or direct laryngoscopy. We describe CO2 laser excision of supraglottic-pharyngeal stenosis using intubationless Optiflow high-flow nasal cannula (HFNC). METHODS: A 55-year-old male presented with dyspnea and dysphagia secondary to severe supraglottic-pharyngeal stenosis in the setting of previous chemoradiation for a T0N2aM0 squamous cell carcinoma...
September 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28761343/elastic-liposomes-as-novel-carriers-recent-advances-in-drug-delivery
#9
REVIEW
Afzal Hussain, Sima Singh, Dinesh Sharma, Thomas J Webster, Kausar Shafaat, Abdul Faruk
Elastic liposomes (EL) are some of the most versatile deformable vesicular carriers that comprise physiologically biocompatible lipids and surfactants for the delivery of numerous challenging molecules and have marked advantages over other colloidal systems. They have been investigated for a wide range of applications in pharmaceutical technology through topical, transdermal, nasal, and oral routes for efficient and effective drug delivery. Increased drug encapsulation efficiency, enhanced drug permeation and penetration into or across the skin, and ultradeformability have led to widespread interest in ELs to modulate drug release, permeation, and drug action more efficiently than conventional drug-release vehicles...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28755526/blood-and-nasal-epigenetics-correlate-to-allergic-rhinitis-symptom-development-in-the-environmental-exposure-unit
#10
Michelle L North, Meaghan J Jones, Julia L MacIsaac, Alexander M Morin, Lisa M Steacy, Alexander Gregor, Michael S Kobor, Anne K Ellis
BACKGROUND: Epigenetic alterations may represent new therapeutic targets and/or biomarkers of allergic rhinitis (AR). Our aim was to examine genome-wide epigenetic changes induced by controlled pollen exposure in the Environmental Exposure Unit (EEU). METHODS: 38 AR-sufferers and 8 non-allergic controls were exposed to grass pollen for 3h on two consecutive days. We interrogated DNA methylation at baseline and 3h in peripheral blood mononuclear cells (PBMCs) using the Infinium Methylation 450K array...
July 29, 2017: Allergy
https://www.readbyqxmd.com/read/28750686/carbon-dioxide-narcosis-due-to-inappropriate-oxygen-delivery-a-case-report
#11
Thomas Herren, Eva Achermann, Thomas Hegi, Adrian Reber, Max Stäubli
BACKGROUND: Oxygen delivery to patients with chronic obstructive pulmonary disease may be challenging because of their potential hypoxic ventilatory drive. However, some oxygen delivery systems such as non-rebreathing face masks with an oxygen reservoir bag require high oxygen flow for adequate oxygenation and to avoid carbon dioxide rebreathing. CASE PRESENTATION: A 72-year-old Caucasian man with severe chronic obstructive pulmonary disease was admitted to the emergency department because of worsening dyspnea and an oxygen saturation of 81% measured by pulse oximetry...
July 28, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28749194/results-of-preoperative-chemoradiotherapy-for-patients-with-advanced-cancer-of-the-nasal-cavity-and-paranasal-sinuses
#12
Erik Fernström, Jan Nyman, Eva Hammerlid, Erik Holmberg, Hedda Haugen-Cange, Karin Petruson, Edvard Abel, Thomas Björk-Eriksson
OBJECTIVES: Curative treatment of nasal cavity and paranasal sinus cancer is challenging due to the proximity to critical anatomical structures. The purpose of this study was to analyze the impact of trimodality therapy with preoperative chemotherapy and reduced-dose radiotherapy followed by organ-preserving surgery for treating patients with nasal cavity and paranasal sinus cancer. METHODS: This retrospective study included all 156 patients diagnosed with sinonasal cancer in western Sweden between 1986 and 2009...
July 27, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28748684/prognostic-factors-in-head-and-neck-melanoma-according-to-facial-aesthetic-units
#13
Giovanni Paolino, Michele Cardone, Dario Didona, Elisa Moliterni, Luigi Losco, Paola Corsetti, Giusy Schipani, Teresa Lopez, Stefano Calvieri, Ugo Bottoni
BACKGROUND: Head and neck melanoma is a clinical challenge. Indeed, cutaneous head and neck melanoma shows a worse prognosis in comparison to melanomas of other body sites. Although the emphasis on facial cosmetic preservation plays a pivotal role in comparison to other body areas, specific facial aesthetic units could also play a key role in the prognostic evaluation of the malignancy. METHODS: The aim of the current study was to evaluate the general outcome and clinicopathological features of head and neck melanoma and to detect prognostic differences according to each facial aesthetic unit...
July 26, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28747496/parainfluenza-virus-5-piv5-expressing-wild-type-or-pre-fusion-respiratory-syncytial-virus-rsv-fusion-protein-protect-mice-and-cotton-rats-from-rsv-challenge
#14
Shannon I Phan, James R Zengel, Huiling Wei, Zhuo Li, Dai Wang, Biao He
Human respiratory syncytial virus (RSV) is the leading cause of pediatric bronchiolitis and hospitalizations. RSV can also cause severe complications in elderly and immunocompromised individuals. There is no licensed vaccine. We previously generated a PIV5-vectored vaccine candidate expressing the RSV fusion protein (F) that was immunogenic and protective in mice. In this work, our goal was to improve the original vaccine candidate by modifying the PIV5 vector or by modifying the RSV-F antigen. We previously demonstrated that inserting a foreign gene at the PIV5 SH-HN junction or deleting PIV5 SH increased vaccine efficacy...
July 26, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28740770/versatility-of-the-latissimus-dorsi-free-flap-during-the-treatment-of-complex-postcraniotomy-surgical-site-infections
#15
Nobutaka Yoshioka
BACKGROUND: Some intractable cases of postcraniotomy infection, which can involve compromised skin, an open frontal air sinus, and residual epidural dead space, have been reported. In such cases, reconstructing the scalp and skull is challenging. METHODS: Between 2009 and 2016, the author treated 12 patients with recalcitrant postcraniotomy surgical site infections with latissimus dorsi (LD) free flaps. The patients' ages ranged from 37 to 79 years (mean, 63.5 years), and their underlying diseases included subarachnoid hemorrhaging (n = 5), brain tumors (n = 4), and cerebral arteriovenous malformations (n = 3)...
June 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28734844/tlr3-blockade-in-rhinovirus-induced-experimental-asthma-exacerbations-a-randomized-controlled-study
#16
Philip E Silkoff, Susan Flavin, Robert Gordon, Mathew J Loza, Peter J Sterk, Rene Lutter, Zuzana Diamant, Ronald B Turner, Brian J Lipworth, David Proud, Dave Singh, Andreas Eich, Vibeke Backer, James E Gern, Christian Herzmann, Scott A Halperin, Tjeert T Mensinga, Alfred M Del Vecchio, Patrick Branigan, Lani San Mateo, Frédéric Baribaud, Elliot S Barnathan, Sebastian L Johnston
BACKGROUND: Human rhinoviruses (HRV) commonly precipitate asthma exacerbations. TLR3, an innate pattern-recognition receptor, is triggered by HRV driving inflammation that may worsen asthma. OBJECTIVE: To evaluate an inhibitory monoclonal antibody to TLR3, CNTO3157, on experimental HRV-16 inoculation in healthy and asthmatic subjects. METHODS: In this double-blind multicenter randomized parallel-group study in North America and Europe, healthy and mild-moderate stable asthmatic subjects received single or multiple doses of CNTO 3157 or placebo, respectively, and were then inoculated with HRV-16 within 72 hours...
July 19, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28733193/traditional-neurotherapeutics-approach-intended-for-direct-nose-to-brain-delivery
#17
REVIEW
Zohreh Abolhasanzadeh, Hajar Ashrafi, Parmis Badr, Amir Azadi
ETHNOPHARMACOLOGICAL RELEVANCE: Nasal delivery systems have a significant role in Persian traditional medicine. Most of them were utilized for central nervous system (CNS)-related disorders. In modern medicine, nasal drug delivery systems for brain delivery are highly regarded. AIM OF THE STUDY: Despite recent advances in drug delivery to the (CNS), delivery of therapeutics to the brain remains a major challenge because of the blood brain barrier (BBB). There are several mechanisms which regulate the drug transfer across the BBB...
July 18, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28728621/high-flow-heated-humidified-air-via-nasal-cannula-treats-cpap-intolerant-children-with-obstructive-sleep-apnea
#18
Stephen Hawkins, Stephanie Huston, Kristen Campbell, Ann Halbower
STUDY OBJECTIVES: Continuous positive airway pressure (CPAP) is effective but challenging for children with obstructive sleep apnea (OSA). High-flow air via open nasal cannula (HFNC) as treatment in children remains controversial. We report the efficacy of HFNC in children with OSA and CPAP intolerance, a titration protocol, and a discussion of potential mechanisms. METHODS: Patients aged 1 to 18 years with OSA (defined by obstructive apnea-hypopnea index [OAHI] greater than 1 event/h) and CPAP intolerance were enrolled...
July 14, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28727907/novel-role-of-surfactant-protein-a-in-bacterial-sinusitis
#19
George T Noutsios, Amanda L Willis, Julie G Ledford, Eugene H Chang
BACKGROUND: Chronic rhinosinusitis (CRS) is a common inflammatory disorder of the upper airway characterized by chronic inflammation and significant sinonasal remodeling. CRS is comprised of 2 major subgroups, based on whether polyps are present or absent. In some cases, it is characterized by colonization with opportunistic pathogens such as Pseudomonas aeruginosa (PA), Staphylococcus aureus, and other bacteria. The innate immune system of the sinonasal epithelium is the first line of defense against inhaled pathogens...
July 20, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28711543/clival-defect-with-primary-csf-rhinorrhea-a-very-rare-presentation-with-challenging-management
#20
Sheikh Asad, Jens Peters-Willke, Warwick Brennan, Saima Asad
BACKGROUND: Primary spontaneous cerebrospinal fluid (CSF) rhinorrhea due to clival defect is an extremely rare presentation, and only 6 cases have been reported in the literature so far(17). CASE DESCRIPTION: We present a unique case of a 64-year-old woman who presented with a 2-year history of ongoing CSF rhinorrhea. She had similar episode at the age of 40 years and suffered from meningitis. She underwent magnetic resonance imaging, computed tomography cisternogram, as well as computed tomography of the brain, which showed clival defect with CSF leak into the sphenoid sinus...
July 12, 2017: World Neurosurgery
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