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K Schneider
The radiographic technique of pediatric chest X‑rays is substantially different from that in adults. In nearly all cases ap/pa X‑rays are sufficient and lateral radiographs are rarely needed. In the first years of life the thymus may overshadow the heart, the great vessels and the lung hila. The most important anatomical structures essential for diagnosing pathological findings of the lungs and mediastinum are the trachea with the bifurcation and the main bronchi with the adjacent great vessels. For the assessment of distended lungs and intrathoracic consolidations, fundamental knowledge of the anatomy in childhood and malformations which can involve the airways, the lungs, the heart, as well as systemic and pulmonary vessels are indispensable...
March 19, 2018: Der Radiologe
Cheng Fu, Jie Luo, Shaotang Ye, Ziguo Yuan, Shoujun Li
Avian-like H5N1 canine influenza virus (CIV) causes severe respiratory infections in dogs. However, the mechanism underlying H5N1 CIV infection in dogs is unknown. The present study aimed to identify differentially expressed miRNAs and mRNAs in the lungs and trachea in H5N1 CIV-infected dogs through a next-generation sequencing-based method. Eighteen 40-day-old beagles were inoculated intranasally with CIV, A/canine/01/Guangdong/2013 (H5N1) at a tissue culture infectious dose 50 (TCID50 ) of 106 , and lung and tracheal tissues were harvested at 3 and 7 d post-inoculation...
2018: Frontiers in Microbiology
Antti Joonas Koivisto, Kirsten Inga Kling, Ana Sofia Fonseca, Anders Brostrøm Bluhme, Marcel Moreman, Mingzhou Yu, Anna Luisa Costa, Baldi Giovanni, Simona Ortelli, Wouter Fransman, Ulla Vogel, Keld Alstrup Jensen
Nanoscale TiO2 (nTiO2 ) is manufactured in high volumes and is of potential concern in occupational health. Here, we measured workers exposure levels while ceramic honeycombs were dip coated with liquid photoactive nanoparticle suspension and dried with an air blade. The measured nTiO2 concentration levels were used to assess process specific emission rates using a convolution theorem and to calculate inhalation dose rates of deposited nTiO2 particles. Dip coating did not result in detectable release of particles but air blade drying released fine-sized TiO2 and nTiO2 particles...
March 2, 2018: Science of the Total Environment
Akihiro Miura, Taisuke Mori, Akihiko Yoshida, Yukio Watanabe, Kuniko Sunami, Shunichi Watanabe, Takashi Kohno, Koji Tsuta
No abstract text is available yet for this article.
March 6, 2018: Pathology, Research and Practice
Aaron Scholl, Yuyang Yang, Patrick McBride, Kelly Irwin, Lan Jiang
The Drosophila trachea is a premier genetic system to investigate the fundamental mechanisms of tubular organ formation. Development of the trachea consists of the well understood early branch specification and migration processes, and the less clear later branch maturation process including the apical membrane expansion, cytoskeleton rearrangement, luminal matrix clearance, and air-filling. We identified seven members of the Osiris (Osi) gene family with obvious tracheal expression in trachea. In addition, HA-tagged Osi proteins are highly concentrated in vesicle-like structures at and near the apical membrane...
March 13, 2018: Gene Expression Patterns: GEP
Long Jiang, Jun Liu, Diego Gonzalez-Rivas, Yaron Shargall, Martin Kolb, Wenlong Shao, Qinglong Dong, Lixia Liang, Jianxing He
OBJECTIVES: To describe and assess the techniques of spontaneous-ventilation video-assisted thoracoscopic surgery (SV-VATS) for tracheal/carinal resections and compare the outcomes with the conventional thoracoscopic intubated method. METHODS: From May 2015 to November 2016, some 18 consecutive patients with malignant or benign diseases invading distal trachea and carina who met the criteria for SV were treated by SV-VATS resection. To evaluate the feasibility of this novel technique, they were compared with a control group consisting of 14 consecutive patients with the same diseases who underwent VATS resection using intubated general anesthesia from October 2014 to April 2015...
February 21, 2018: Journal of Thoracic and Cardiovascular Surgery
Makoto Mori, Frank C Detterbeck
Primary carcinoma of the trachea is an exceeding rare entity. We present a case of radiation-induced primary squamous cell carcinoma of the trachea in a young woman. The case highlights a diagnostic challenge of this atypical disease entity.
March 15, 2018: General Thoracic and Cardiovascular Surgery
Dengfeng Ding, Shiyuan Xu, Hongfei Zhang, Wei Zhao, Xueping Zhang, Yuanxu Jiang, Ping Wang, Zhongliang Dai, Junzhi Zhang
The aim of the present study was to investigate the effects of 3-methyladenine (3-MA) and dexmedetomidine (DEX) pretreatment on lipopolysaccharide (LPS)-induced acute lung injury (ALI) and the potential mechanism underlying the effects. LPS was instilled into the trachea of BALB/c mice to induce the ALI model. Solutions of 3-MA or DEX were intravenously injected into the mice 1 h later to establish the 3-MA and DEX groups. On days 1, 3 and 5 after the injections, arterial blood gas analysis was conducted, and the lung wet-dry weight ratio (W/D) was determined...
April 2018: Experimental and Therapeutic Medicine
Louise Ramsden, Martin Patrick McColgan, Thomas Rossor, Anne Greenough, Simon J Clark
Studies of adult patients have demonstrated that weekend admissions compared with weekday admissions had a significantly higher hospital mortality rate. We have reviewed the literature to determine if the timing of admission, for example, weekend or weekday, influenced mortality and morbidity in children. Seventeen studies reported the effect of timing of admission on mortality, and only four studies demonstrated an increase in those admitted at the weekend. Meta-analysis of the results of 15 of the studies demonstrated there was no significant weekend effect...
March 15, 2018: Archives of Disease in Childhood
Shazia Imran, Maryam Shan, Shazia Muazam
OBJECTIVE: To observe the effects of Shisha smoke on submucosal glands of trachea of mice; and compare it with tracheal glands of mice exposed to cigarette smoke. STUDY DESIGN: Randomised controlled trial. PLACE AND DURATION OF STUDY: Department of Anatomy, Islamic International Medical College, Rawalpindi, in collaboration with National Institute of Health (NIH), Islamabad from October 2013 till April 2014. METHODOLOGY: Sample comprised of 40 adult male mice of strain BALB/c...
March 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
Ohad Ronen, Alexander Gurevich, Shimon Ivry, Edward Altman, Evgeni Kukuev
We describe a modified technique for percutaneous dilatational tracheostomy using a 15F tube exchanger or Eschmann catheter. A retrospective review of 1180 procedures using this modified technique demonstrated it to be effective with a failure rate of only 0.25% (3 patients). Moreover, it provides an additional safeguard with the ability to rapidly reintroduce the endotracheal tube into the trachea guided by the exchange catheter in the event of accidental extubation during the procedure. This technique needs no additional special devices or equipment (eg, a bronchoscope)...
March 14, 2018: Anesthesia and Analgesia
Seda Ekizoglu, Turgut Ulutin, Jalal Guliyev, Nur Buyru
Head and neck squamous cell carcinomas (HNSCC) are a diverse group of tumor types, including neoplasia of the paranasal sinuses, oral cavity, trachea, pharynx and larynx. Laryngeal cancer is the most common type of HNSCC. The proline-rich 4 (PRR4) protein is synthesized in the acinar cells of human lacrimal glands. Previous studies have demonstrated that PRR4 may function as an antimicrobial protein protecting the ocular surface and the oral cavity. In order to determine differentially expressed genes (DEGs) in laryngeal tumors, a GeneFishing Assay was performed; 27 DEGs were identified...
April 2018: Oncology Letters
Karin Gasser
A 10-year-old female Australian Cattle Dog was referred for investigation of a mediastinal mass. During clinical examination, a mandarin- sized mass was detected ventrally of the trachea. According to computed tomographic (CT) findings and cytology of a fine-needle aspirate, thyroid neoplasia was suspected. The assumed tumour affected the left thyroid gland and was staged as stadium II because of enlargement of the ipsilateral cervical and retropharyngeal lymph nodes. The left thyroid, including the parathyroid gland, was removed surgically with a guarded prognosis...
February 2018: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
Ahmed Abushahin, Abdulla Zarroug, Magda Wagdi, Ibrahim Janahi
Wheezing and cough are common case scenarios that pediatricians encountered in their office practices. Although a bronchogenic cyst is an uncommon condition, it is essential to be considered in the differential diagnosis of a chronic cough and wheezing among young children who fail to respond to appropriate medical treatment. A 28-month-old girl was referred to our pediatric pulmonology clinic with persistent symptoms of a cough and wheeze unresponsive to standard asthma therapy. This presentation prompted us to undertake a detailed diagnostic evaluation...
2018: Case Reports in Pediatrics
Takeshi Kawaguchi, Daisuke Himeji, Noriaki Kawano, Yoshiya Shimao, Kousuke Marutsuka
Primary endobronchial mucosa-associated lymphoid tissue lymphoma (EML) is rare. We reviewed 20 cases of EML, including ours and case reports. We found that the location of tumor in 70% of these cases was limited to the trachea and main bronchus, and the form of tumor in 61% of these cases was several nodular protrusions. If a patient exhibits these characteristics, adequate specimen collection on bronchoscopy is important. Because the prognosis for patients with EML is good, tumors on the trachea and main bronchus should be treated, while those on the peripheral airway can be watched carefully...
March 9, 2018: Internal Medicine
Hester F Shieh, C Jason Smithers, Thomas E Hamilton, David Zurakowski, Gary A Visner, Michael A Manfredi, Russell W Jennings, Christopher W Baird
OBJECTIVE: Posterior descending aortopexy can relieve posterior intrusion of the left mainstem bronchus that may limit the effectiveness of posterior tracheobronchopexy. We review outcomes of patients undergoing both descending aortopexy and posterior tracheopexy for severe tracheobronchomalacia with posterior intrusion and left mainstem compression to determine if there were resolution of clinical symptoms and bronchoscopic evidence of improvement in airway collapse. METHODS: All patients who underwent both descending aortopexy and posterior tracheopexy from October 2012 to October 2016 were retrospectively reviewed...
March 7, 2018: Seminars in Thoracic and Cardiovascular Surgery
Kerdalidec Candy, Sophie Brun, Patrick Nicolas, Rémy Durand, Remi N Charrel, Arezki Izri
Chemical, physical, and mechanical methods are used to control human lice. Attempts have been made to eradicate head lice Pediculus humanus capitis by hot air, soaking in various fluids or asphyxiation using occlusive treatments. In this study, we assessed the maximum time that head lice can survive anoxia (oxygen deprivation) and their ability to survive prolonged water immersion. We also observed the ingress of fluids across louse tracheae and spiracle characteristics contrasting with those described in the literature...
2018: Parasite: Journal de la Société Française de Parasitologie
Marjan M Hashemi, Brett S Holden, Maddison F Taylor, John Wilson, Jordan Coburn, Brian Hilton, Tania Nance, Shawn Gubler, Carl Genberg, Shenglou Deng, Paul B Savage
Ceragenins were designed as non-peptide mimics of endogenous antimicrobial peptides, and they display broad-spectrum antibacterial and antifungal activities, including the ability to eradicate established biofilms. These features of ceragenins make them attractive potential therapeutics for persistent infections in the lung, including those associated with cystic fibrosis. A characteristic of an optimal therapeutic for use in the lungs and trachea is the exertion of potent antimicrobial activities without damaging the cilia that play a critical role in these tissues...
March 7, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Yiwen Wang, Jürgen Berger, Bernard Moussian
Terminal differentiation of an organ is the last step in development that enables the organism to survive in the outside world after birth. Terminal differentiation of the insect tracheae that ends with filling the tubular network with gas is not fully understood at the tissue level. Here, we demonstrate that yet unidentified valves at the end of the tracheal system of the fruit fly Drosophila melanogaster embryo are important elements allowing terminal differentiation of this organ. Formation of these valves depends on the function of the zona pellucida protein Trynity (Tyn)...
March 5, 2018: Developmental Biology
Matheus Martini Cavalheiro, Leonardo C Caserta, Marcia M A B Dos Santos, Ana C S Barnabé, Ricardo Durães-Carvalho, Marina Aiello Padilla, Raphael M Simão, Laís S Rizotto, Paulo V M Simas, Juliana C S Bastos, Tereza C Cardoso, Paulo A N Felippe, C W Arns, Helena L Ferreira
The detection of avian coronaviruses (AvCoV) in wild birds and the emergence of new AvCoV have been increased in the past few years. In the present study, the pathogenicity of three avian coronavirus (AvCoV) isolates was investigated in day-old chicks. One AvCoV isolated from a pigeon, which clustered with the Massachusetts vaccine serotype, and two AvCoV isolated from chickens, which grouped with a Brazilian genotype lineage, were used. Clinical signs, gross lesions, histopathological changes, ciliary activity, viral RNA detection, and serology were evaluated during 42 days post infection...
March 8, 2018: Avian Pathology: Journal of the W.V.P.A
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