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https://www.readbyqxmd.com/read/29789753/hydrogen-protects-lung-from-hypoxia-re-oxygenation-injury-by-reducing-hydroxyl-radical-production-and-inhibiting-inflammatory-responses
#1
Meihong Chen, Jie Zhang, Yun Chen, Yan Qiu, Zi Luo, Sixia Zhao, Lei Du, Dongbo Tian
Here we investigated whether hydrogen can protect the lung from chronic injury induced by hypoxia/re-oxygenation (H/R). We developed a mouse model in which H/R exposure triggered clinically typical lung injury, involving increased alveolar wall thickening, infiltration by neutrophils, consolidation, alveolar hemorrhage, increased levels of inflammatory factors and recruitment of M1 macrophages. All these processes were attenuated in the presence of H2 . We found that H/R-induced injury in our mouse model was associated with production of hydroxyl radicals as well as increased levels of colony-stimulating factors and circulating leukocytes...
May 22, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29787986/anti-inflammatory-effects-and-mechanism-of-the-total-flavonoids-from-artemisia-scoparia-waldst-et-kit-in-vitro-and-in-vivo
#2
Xue Wang, Hua Huang, Xueping Ma, Linlin Wang, Chong Liu, Biyu Hou, Shengqian Yang, Li Zhang, Guanhua Du
Artemisia scoparia Waldst. et Kit. is traditionally used for the treatment of jaundice urinary retention, itching wet sores, infectious icteric hepatitis and influenza in Uighur medicine. This study aimed to further illuminate the anti-inflammatory effects and mechanism of the total flavonoids (ASTF) from Artemisia scoparia Waldst. et Kit. In vitro, RAW 264.7 cells were pretreated with ASTF 1 h before stimulation with LPS (1 μg/mL) for 24 h. Then, the concentrations of NO, PGE2 , TNF-α, IL-6 and MCP-1 in the medium were determined...
May 19, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29773465/pulmonary-manifestations-in-systemic-lupus-erythematosus-pleural-involvement-acute-pneumonitis-chronic-interstitial-lung-disease-and-diffuse-alveolar-hemorrhage
#3
Georgina Aguilera-Pickens, Carlos Abud-Mendoza
Systemic lupus erythematosus is the diffuse autoimmune connective tissue disease that most frequently involves pulmonary involvement, affecting 20% of 90% of the patients. The percentage varies depending on the defining criteria (symptoms, pulmonary tests or histopathological studies). At least once during the disease course, 50% of those affected have pleural and/or pulmonary manifestations, which are associated with higher morbidity and mortality. Pulmonary involvement has no correlation with lupus activity biomarkers, and it is necessary to rule out infectious processes in the initial approach...
May 14, 2018: Reumatología Clinica
https://www.readbyqxmd.com/read/29764547/-comparison-of-lung-protection-for-hydrochloric-acid-or-oleic-acid-induced-rat-acute-respiratory-distress-syndrome-models-pretreated-with-penehyclidine
#4
Yumei Cheng, Zhou Yang, Feng Shen, Bo Liu, Yahui Wang, Yanqi Wu, Ling Yao, Yuqing Liu
OBJECTIVE: To compare the lung protection roles of intraperitoneal pre-injection with penehyclidine for two kinds of rat models with pulmonary and extrapulmonary acute respiratory distress syndrome (ARDSp and ARDSexp). METHODS: Forty healthy adult Sprague-Dawley (SD) rats were randomly divided into five groups (each n = 8): the rats in sham group received only tracheotomy; the ARDS rat models were reproduced by intratracheal inhalation of 0.1 mol/L hydrochloric acid (HCl) 2 mL/kg to simulate ARDSexp (HCl group) and 0...
May 2018: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29755808/the-role-of-duration-of-hyperbaric-oxygen-therapy-on-lung-injury-an-experimental-study-lung-injury-and-hyperbaric-oxygen-therapy
#5
Menduh Oruç, Bennur Esen, Maşuk Taylan, Yusuf Nergis, Atalay Şahin
OBJECTIVES: We aim to histopathologically analyze the effect of hyperbaric oxygen (HBO) therapy in the lung tissue. MATERIAL AND METHODS: A total of 21 rabbits were divided into three groups, with each containing seven rabbits. Group 1 was the control group. Group 2 underwent HBO of 3 atmosphere absolute (ATA) for 90 min/day for 7 days. In group 3, HBO at 3 ATA was administered 90 min/day for 28 days. Oxygen saturation (SpO2 ) was determined by pulse oximetry before and after administration of HBO...
April 2018: Turkish thoracic journal
https://www.readbyqxmd.com/read/29740732/successful-treatment-with-idarucizumab-for-diffuse-alveolar-hemorrhage-induced-by-dabigatran-etexilate-a-case-report
#6
Akihiro Shiroshita, Kei Nakashima, Yu Tanaka, Akiko Tateishi, Masahiro Nemoto, Masahiro Aoshima
We report the case of an 81-year-old man taking dabigatran etexilate (dabigatran) for chronic atrial fibrillation, who presented with acute-onset hemoptysis and hypoxia. Chest high-resolution computed tomography showed bilateral ground grass opacities. After admission, his respiratory failure progressed rapidly and bronchoalveolar lavage was performed immediately, which showed copious amounts of bloody fluid and hemosiderin-laden macrophages with Prussian blue staining. He was diagnosed as having diffuse alveolar hemorrhage (DAH)...
May 8, 2018: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/29726062/expanded-acceptance-of-acute-exacerbation-of-nonspecific-interstitial-pneumonia-including-7-additional-cases-with-detailed-clinical-pathologic-correlation
#7
Atsushi Miyamoto, Amita Sharma, Michiya Nishino, Mari Mino-Kenudson, Osamu Matsubara, Eugene Jerome Mark
Acute exacerbation is uncommonly diagnosed in patients with nonspecific interstitial pneumonia (NSIP) and its pathologic features have received relatively little attention compared to idiopathic pulmonary fibrosis. We retrospectively studied 14 consecutive cases of histopathologically proven NSIP by surgical lung biopsy. The diagnosis of acute exacerbation was confirmed clinically. We analyzed whether four reported pathologic features, including organizing pneumonia lesion, alveolar hemorrhage, many fibroblastic foci, and focal hyaline membranes were present and suggestive of acute exacerbation of NSIP or not...
May 3, 2018: Pathology International
https://www.readbyqxmd.com/read/29725643/combination-therapy-with-rituximab-and-cyclophosphamide-for-remission-induction-in-anca-vasculitis
#8
Frank B Cortazar, Saif A Muhsin, William F Pendergraft, Zachary S Wallace, Colleen Dunbar, Karen Laliberte, John L Niles
Introduction: Remission induction in antineutrophil cytoplasmic autoantibody (ANCA) vasculitis may be complicated by slow response to treatment and toxicity from glucocorticoids. We describe outcomes with a novel remission induction regimen combining rituximab with a short course of low-dose, oral cyclophosphamide and an accelerated prednisone taper. Methods: Patients were included in this retrospective study if they had newly diagnosed or relapsing ANCA vasculitis with a Birmingham Vasculitis Activity Score for Wegener Granulomatosis (BVAS-WG) ≥3 and received a standardized remission induction regimen...
March 2018: KI Reports
https://www.readbyqxmd.com/read/29719795/mediastinal-angiosarcoma-presenting-as-diffuse-alveolar-hemorrhage
#9
Debapriya Datta, Daniel A Gerardi, Bimalin Lahiri
Angiosarcomas are malignant vascular tumors. Angiosarcomas arising in the thorax such as angiosarcoma of the lungs, heart and mediastinum are extremely rare. There are no reports of mediastinal angiosarcomas presenting with diffuse alveolar hemorrhage, which is a clinical syndrome characterized by the presence of hemoptysis, dyspnea, hypoxia, diffuse lung infiltrates and anemia. Usually, diffuse alveolar hemorrhage is caused by pulmonary capillaritis. Local invasion is more common with these tumors than distant metastasis...
2018: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/29703056/methylprednisolone-and-plasmapheresis-are-effective-for-life-threatening-diffuse-alveolar-hemorrhage-and-gastrointestinal-hemorrhage-in-granulomatosis-with-polyangiitis-a-case-report-and-literature-review
#10
Shen Ning, Xinhua Zhang, Cheng Xu, Xin Dang, Hao Cheng, Kejian Zhu, Yongmei Han
RATIONALE: The treatment of granulomatosis with polyangiitis (GPA) with life-threatening complications, such as diffuse alveolar hemorrhage (DAH) and gastrointestinal hemorrhage (GIH), remains challenging. PATIENT CONCERNS: A 70-year-old female presented with a 6-month history of a productive cough and a 10-day history of arthralgia that progressed to respiratory failure and massive hematochezia. DIAGNOSES: Chest high-resolution computed tomography (HRCT) revealed multiple nodules, masses, and cavities...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29650822/-a-case-of-poorly-differentiated-carcinoma-of-unknown-primary-site-with-risk-of-choriocarcinoma-syndrome-effectively-treated-with-reduced-bleomycin-cisplatin-etoposide-combination-regimen-bep-regimen
#11
Motohiko Okano, Hiroyasu Oda, Mikiya Ishihara, Satoshi Tamaru, Kanako Saito, Yoshiki Yamashita, Toshiro Mizuno, Naoyuki Katayama
A 64-year-old man visited his physician complaining of bilateral gynecomastia and left shoulder pain. Chest X-ray showed multiple bilateral masses in the lung, and he was referred to our hospital. Radiographical findings, elevation of serum total hCG, and histological findings of the cervical lymph node revealed multiple pulmonary, nodal, and brain metastases of poorly differentiated carcinoma of an unknown primary site with choriocarcinoma components. He was administered a regimen of reduced bleomycin, cisplatin, etoposide combination(reduced BEP regimen)to reduce the risk of acute respiratory failure with intra-alveolar hemorrhage related to post-chemotherapy early tumor necrosis...
April 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29618647/identification-of-the-rna-pseudoknot-within-the-3-end-of-prrsv-genome-as-pathogen-associated-molecular-pattern-to-activate-antiviral-signaling-via-rig-i-and-tlr3
#12
Sha Xie, Xin-Xin Chen, Songlin Qiao, Rui Li, Yangang Sun, Shuangfei Xia, Lin-Jian Wang, Xuegang Luo, Ruiguang Deng, En-Min Zhou, Gai-Ping Zhang
Once infected by viruses, cells can detect pathogen associated molecular patterns (PAMPs) on viral nucleic acid by host pattern recognition receptors (PRRs) to initiate the antiviral response. Porcine reproductive and respiratory syndrome virus (PRRSV) is the causative agent of porcine reproductive and respiratory syndrome (PRRS), characterized by reproductive failure in sows and respiratory diseases in pigs of different ages. To date, the sensing mechanism of PRRSV has not been elucidated. Here, we reported that the pseudoknot region residing in the 3' untranslated regions (UTR) of PRRSV genome, which has been proposed to regulate RNA synthesis and virus replication, was sensed as non-self by retinoic acid-inducible gene I (RIG-I) and Toll like receptor (TLR3) and strongly induced type I IFNs and interferon-stimulated genes (ISGs) in porcine alveolar macrophages (PAMs)...
April 4, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29602314/use-of-cilomilast-loaded-phosphatiosomes-to-suppress-neutrophilic-inflammation-for-attenuating-acute-lung-injury-the-effect-of-nanovesicular-surface-charge
#13
Fu-Chao Liu, Huang-Ping Yu, Cheng-Yu Lin, Ahmed O Elzoghby, Tsong-Long Hwang, Jia-You Fang
BACKGROUND: Cilomilast is a phosphodiesterase 4 (PDE4) inhibitor for treating inflammatory lung diseases. This agent has a narrow therapeutic index with significant adverse effects on the nervous system. This study was conducted to entrap cilomilast into PEGylated phosphatidylcholine-rich niosomes (phosphatiosomes) to improve pulmonary delivery via the strong affinity to pulmonary surfactant film. Neutrophils were used as a cell model to test the anti-inflammatory activity of phosphatiosomes...
March 30, 2018: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/29595282/-diffuse-alveolar-hemorrhage-acute-life-threatening-situation-in-rheumatology
#14
Petr Bradna, Jan Maňák, Tomáš Soukup, Michal Kodeda, Marcela Drahošová, Jan Tomš
Diffuse alveolar hemorrhage (DAH) is a life-threatening acute manifestation of systemic diseases, the most commonly of systemic vasculitis. Clinically DAH manifests by a rapidly progressive respiratory and renal failure. The decisive for diagnose is immediate bronchoscopic examination with the bronchoalveolar lavage examination. CT mostly show bilateral pulmonary infiltrates, in blood picture rapidly come to anemia. In the majority of patients it can be found positive ANCA antibodies. DAH should be suspected in the case of acute respiratory failure also in patients without history of systemic disease...
2018: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29588066/life-threatening-everolimus-associated-pneumonitis-a-case-report-and-a-review-of-the-literature
#15
F Almeida, S Amorim, A Sarmento, L Santos
INTRODUCTION: Noninfective pneumonitis is a class-related effect within mammalian target of rapamycin (mTOR) inhibitors, including everolimus, and can occasionally be severe. CASE REPORT: A 62-year-old man, medicated with everolimus due to a heart transplantation 17 years previously and with chronic kidney disease, was admitted to the intensive care unit (ICU) with acute respiratory failure, cardiovascular shock, and impaired renal function requiring dialysis. Computed tomography (CT) scan revealed right upper lobe consolidation...
March 24, 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29582318/clinical-mimics-an-emergency-medicine-focused-review-of-pneumonia-mimics
#16
REVIEW
Drew Alan Long, Brit Long, Alex Koyfman
Pneumonia is a common cause of morbidity and mortality in adults in the United States. While pneumonia classically presents with a fever, cough, and shortness of breath, the presentation can vary widely in adults. This review evaluates history and physical examination findings of pneumonia and several conditions that mimic pneumonia. Pneumonia is a potentially deadly disease. History and examination findings are variable in pneumonia, and many conditions mimic pneumonia. These conditions include pulmonary embolism, diffuse interstitial lung disease, endocarditis, vasculitis, diffuse alveolar hemorrhage, acute decompensated heart failure, tuberculosis, lung cancer, and acute respiratory distress syndrome...
March 26, 2018: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/29561395/suffocation-from-balloon-bronchoplasty
#17
Jorge L Morales-Estrella, Michael Machuzak, Bohdan Pichurko, Hanine Inaty, Atul C Mehta
Negative pressure pulmonary edema is a well-described complication of upper airway obstruction. However, the simultaneous occurrence of blood-stained secretions and petechial tracheobronchial hemorrhage are rarely recognized and a potential complication of transient intentional occlusion of the airways. We described a case of "hemorrhagic bronchial mucosa syndrome" and asymptomatic blood-tinged pulmonary edema after balloon bronchoplasty for a concentric tracheal stenosis using a flexible bronchoscopy...
April 2018: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/29538264/ingestion-of-fireworks-rare-cause-of-poisoning-in-children
#18
Hasan Yuksekkaya, Meltem Gumus, Aylin Yucel, Meltem Energin, Serafettin Demirci
BACKGROUND: Mistaken ingestion of all manner of toxic matter is common in childhood, but poisoning with fireworks and matchsticks is rare. Fireworks usually contain 10% yellow phosphorus and 50% potassium chlorate. Potassium chlorate is an extremely reactive and toxic agent that is used in fireworks and matchstick heads. METHODS: Eleven cases (7 females and 5 males; median age, 36 months [ranging from 24 to 48 months]) of poisoning after ingestion of fireworks and matchstick(s), between February 2008 and June 2014, were reviewed...
March 12, 2018: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29530330/reducing-glucocorticoid-duration-in-anca-associated-vasculitis-a-pilot-trial
#19
Eli M Miloslavsky, John L Niles, Zachary S Wallace, Frank B Cortazar, Ana Fernandes, Karen Laliberte, John H Stone
OBJECTIVE: Therapeutic advances in ANCA-associated vasculitis (AAV) have improved patient survival, but mortality rates remain higher than the general population. Glucocorticoids contribute to AAV morbidity and mortality. We examined whether an 8-week glucocorticoid course in combination with rituximab (RTX) would induce disease remission in patients with AAV. METHODS: Patients with active AAV received an 8-week prednisone taper and RTX 375mg/m2 weekly for 4 weeks...
February 3, 2018: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/29527996/causes-of-hemoptysis-in-renal-transplant-patients
#20
Irem Serifoglu, Balam Er Dedekarginoglu, Ebru Hatice Ayvazoglu Soy, Gaye Ulubay, Mehmet Haberal
OBJECTIVES: Hemoptysis is a symptom that can be caused by airway disease, pulmonary parenchymal disease, or pulmonary vascular disease, or it can be idiopathic. Infection is the most common cause of hemoptysis, accounting for 60% to 70% of cases. Hemoptysis is also an initial symptom of diffuse alveolar hemorrhage syndrome, although it may be absent at presentation in one-third of patients. Diffuse alveolar hemorrhage is characterized by disruption of the alveolar-capillary basement membranes because of either injury or inflammation of the arterioles, venules, or capillaries, resulting in bleeding in alveolar spaces...
March 2018: Experimental and Clinical Transplantation
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