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https://www.readbyqxmd.com/read/29457402/-clinical-study-on-negative-pressure-closed-drainage-combined-with-vancomycin-loaded-calcium-sulfate-and-autogenous-bone-in-the-treatment-of-chronic-osteomyelitis
#1
Qiang Li, Shi-Feng Song, Wei Zhang, Guo-Zhi Wu, Li-Zhu Liu
OBJECTIVE: To study the clinical effects of negative pressure closed drainage combined with vancomycin loaded calcium sulfate and autogenous bone in the treatment of chronic osteomyelitis. METHODS: From June 2013 to December 2016, there were 35 cases of chronic osteomyelitis patients in our department, including 23 males and 12 females, ranging in age from 11 to 65 years old, with an average of 34 years old. The course of disease ranged from 8 to 46 months, with an average of 26 months...
November 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29401490/propionibacterium-acnes-derived-insoluble-immune-complexes-in-sinus-macrophages-of-lymph-nodes-affected-by-sarcoidosis
#2
Yoshimi Suzuki, Keisuke Uchida, Tamiko Takemura, Masaki Sekine, Tomoki Tamura, Asuka Furukawa, Akira Hebisawa, Yumi Sakakibara, Nobuyasu Awano, Tomonari Amano, Daisuke Kobayashi, Mariko Negi, Tomoya Kakegawa, Yuriko Wada, Takashi Ito, Takashige Suzuki, Takumi Akashi, Yoshinobu Eishi
BACKGROUND: Propionibacterium acnes is thought to be a causative agent of sarcoidosis. Patients with sarcoidosis have circulating immune complexes. We attempted to detect P. acnes-derived immune complexes in sarcoid lesions. METHODS: We evaluated formalin-fixed and paraffin-embedded lymph node samples from 38 sarcoidosis patients and 90 non-sarcoidosis patients (27 patients with necrotizing lymphadenitis, 28 patients with reactive lymphadenitis, 16 patients with colon cancer, 19 patients with gastric cancer) by immunohistochemistry using anti-human immunoglobulins (IgG, IgA, and IgM) and complement (C1q and C3c) antibodies, and a P...
2018: PloS One
https://www.readbyqxmd.com/read/29394501/functional-interplay-between-lxr-and-ampk%C3%AE-inhibits-atherosclerosis-in-apoe-deficient-mice-a-new-anti-atherogenic-strategy
#3
Chuanrui Ma, Wenwen Zhang, Xiaoxiao Yang, Ying Liu, Lipei Liu, Ke Feng, Xiaomeng Zhang, Shu Yang, Lei Sun, Miao Yu, Jie Yang, Xiaoju Li, Wenquan Hu, Robert Q Miao, Yan Zhu, Luyuan Li, Jihong Han, Yuanli Chen, Yajun Duan
BACKGROUND AND PURPOSE: LXR agonist (T317) reduces atherosclerosis while inducing fatty liver. Metformin activates energy metabolism by activating AMPKα. In this study, we determined if the interaction between metformin and T317 can inhibit atherosclerosis without activation of hepatic lipogenesis. EXPERIMENTAL APPROACH: ApoE deficient mice were treated with T317, metformin or both contained in a high-fat diet for 16 weeks. After treatment, mouse aorta, liver, macrophage and serum samples were collected to determine atherosclerotic lesions, fatty liver, lipid profiles and expression of related molecules...
February 2, 2018: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29393242/focus-on-the-involvement-of-the-nose-and-paranasal-sinuses-in-eosinophilic-granulomatosis-with-polyangiitis-churg-strauss-syndrome-nasal-cytology-reveals-infiltration-of-eosinophils-as-a-very-common-feature
#4
Veronica Seccia, Chiara Baldini, Manuela Latorre, Matteo Gelardi, Iacopo Dallan, Lodovica Cristofani-Mencacci, Stefano Sellari-Franceschini, Maria Laura Bartoli, Elena Bacci, Pierluigi Paggiaro
BACKGROUND: Eosinophilic granulomatosis with polyangiitis (EGPA) is a necrotizing vasculitis that predominantly affects small- to medium-sized vessels. It is characterized by a wide spectrum of extrapulmonary symptoms, including sinonasal and paranasal sinus abnormalities. These are the most common features of this disease, constituting diagnostic criteria for EGPA. However, the actual clinical features, cellular mechanisms and impact on patients' quality of life (QoL) are still a matter of study...
January 23, 2018: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/29348121/endothelial-cell-derived-von-willebrand-factor-but-not-platelet-derived-promotes-atherosclerosis-in-apolipoprotein-e-deficient-mice
#5
Prakash Doddapattar, Nirav Dhanesha, Mehul R Chorawala, Chandler Tinsman, Manish Jain, Manasa K Nayak, Janice M Staber, Anil K Chauhan
OBJECTIVE: VWF (von Willebrand factor) is synthesized by endothelial cells and megakaryocytes and is known to contribute to atherosclerosis. In vitro studies suggest that platelet-derived VWF (Plt-VWF) is biochemically and functionally different from endothelial cell-derived VWF (EC-VWF). We determined the role of different pools of VWF in the pathophysiology of atherosclerosis. APPROACH AND RESULTS: Using bone marrow transplantation, we generated chimeric Plt-VWF, EC-VWF, and Plt-VWF mice lacking a disintegrin and metalloprotease with thrombospondin type I repeats-13 in platelets and plasma on apolipoprotein E-deficient (Apoe-/-) background...
January 18, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29310378/isolated-cerebral-aspergillosis-in-an-immunocompetent-woman-on-treatment-for-bacterial-infected-necrotizing-pancreatitis-a-case-report
#6
Shaoyang Zhang, Qinghui Fu, Qi Chen, Ting-Bo Liang
RATIONALE: Cerebral aspergillosis (CA) is a rare manifestation of invasive aspergillosis. It usually affects seriously immunocompromised hosts. Pancreatic bacterial or/and fungal infection is common in patients with severe acute pancreatitis. PATIENT CONCERNS: We report the first case of an immunocompetent woman with infected necrotizing pancreatitis due to multidrug resistant Acinetobacter baumannii who, in the course of treatment, developed isolated CA. DIAGNOSES: Magnetic resonance imaging, rather than computed tomography, revealed latent homolateral sinus disease-the possible source of the Aspergillus infection...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29284608/melanocortin-1-receptor-deficiency-promotes-atherosclerosis-in-apolipoprotein-e-mice
#7
Petteri Rinne, James J Kadiri, Mauricio Velasco-Delgado, Salla Nuutinen, Miro Viitala, Maija Hollmén, Martina Rami, Eriika Savontaus, Sabine Steffens
OBJECTIVE: The MC1-R (melanocortin 1 receptor) is expressed by monocytes and macrophages where it mediates anti-inflammatory actions. MC1-R also protects against macrophage foam cell formation primarily by promoting cholesterol efflux through the ABCA1 (ATP-binding cassette transporter subfamily A member 1) and ABCG1 (ATP-binding cassette transporter subfamily G member 1). In this study, we aimed to investigate whether global deficiency in MC1-R signaling affects the development of atherosclerosis...
December 28, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29244772/sphingosine-1-phosphate-receptor-1-expressed-in-myeloid-cells-slows-diet-induced-atherosclerosis-and-protects-against-macrophage-apoptosis-in-ldlr-ko-mice
#8
Leticia Gonzalez, Alexander S Qian, Usama Tahir, Pei Yu, Bernardo L Trigatti
We generated myeloid specific sphingosine-1-phosphate receptor 1 (S1pr1) deficient mice by crossing mice that had myeloid specific expression of Cre recombinase (lyzMCre) with mice having the S1pr1 gene flanked by loxP recombination sites. We transplanted bone marrow from these mice and control lyzMCre mice with intact macrophage S1pr1 gene expression into low-density lipoprotein (LDL) receptor gene (Ldlr) deficient mice. The resulting chimeras were fed a high fat atherogenic diet for nine or twelve weeks and evaluated for atherosclerosis development in the aortic sinus...
December 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29236649/deadly-sphenoid-fungus-isolated-sphenoid-invasive-fungal-rhinosinusitis-a-case-report
#9
Jason E Gilde, Christopher C Xiao, Victoria A Epstein, Jonathan Liang
INTRODUCTION: Acute invasive fungal rhinosinusitis (AIFRS) is a potentially fatal infection, usually affecting immunocompromised patients. Isolated sphenoid sinus involvement is rare and has been reported in only a few cases. We discuss the clinical characteristics, histopathologic features, and differential diagnosis of AIFRS of the sphenoid sinus. CASE PRESENTATION: A 57-year-old man with a history of refractory non-Hodgkin lymphoma and neutropenia presented with a 1-week duration of left-sided headache and ipsilateral cheek paresthesia...
2017: Permanente Journal
https://www.readbyqxmd.com/read/29236218/the-dangers-of-the-head-down-position-in-patients-with-untreated-pituitary-macroadenomas-case-series-and-review-of-literature
#10
Satoshi Kiyofuji, Avital Perry, Christopher S Graffeo, Caterina Giannini, Michael J Link
PURPOSE: Cavernous sinus syndrome is a rare phenomenon, characterized by simultaneous neuropathies of cranial nerves III-VI. Various pathological processes have been reported as precipitating etiologies, including infection, inflammation, vascular lesions, and neoplasms. PURPOSE: We report a unique case series of cavernous sinus syndrome attributable to prolonged Trendelenburg or prone positioning during non-cranial procedures and review the pertinent literature to enlighten on this rare but catastrophic phenomenon...
December 13, 2017: Pituitary
https://www.readbyqxmd.com/read/29189887/eosinophilic-granulomatosis-with-polyangiitis-without-respiratory-symptoms-or-asthma-in-an-adolescent-case-report-and-literature-review
#11
REVIEW
Gülçin Otar Yener, Zahide Ekici Tekin, Neşe Çallı Demirkan, Selçuk Yüksel
Eosinophilic granulomatosis with polyangiitis (EGPA), also known as Churg-Strauss syndrome, is a systemic necrotizing vasculitis of the small and medium vessels. It is primarily associated with respiratory conditions such as asthma and sinusitis as well as eosinophilia, neuropathy, pulmonary infiltrates, and vasculitis. EGPA is extremely rare in the pediatric age group, and respiratory system disorders are usually predominant in EGPA patients. A 14-year-old boy presented with rash and severe extremity pain...
November 30, 2017: Rheumatology International
https://www.readbyqxmd.com/read/29169835/-all-large-necrotic-and-hemorrhagic-kidney-tumors-in-children-are-not-necessarily-malignant-a-case-of-a-7-month-old-child
#12
Anne-Sophie Bidaut, Sarah Bouchard, Yvan Samson, Françoise Rypens, Natalie Patey, Dorothée DalSoglio
We report the case of a large tumor in the left kidney with necrotic and hemorrhagic features in a 7-month-old child, which was clinically and radiologically suggestive of a nephroblastoma. The tumor was a nodular mass measuring 8cm in diameter occupying two thirds of the kidney and presenting areas of necrosis and hemorrhage. No capsular rupture or renal sinus infiltration were found. Adjacent renal parenchyma appeared mascroscopically normal. Histologically, the tumor showed a strictly tubulopapillary architectural pattern with numerous psammomas...
November 20, 2017: Annales de Pathologie
https://www.readbyqxmd.com/read/29051882/osteomyelitis-of-fibula-rare-case-with-various-differential-diagnosis
#13
Ashok Khurana, Sanjay Chhawra, Ravi Gupta, Santosh Kumar
INTRODUCTION: The osteomyelitis of fibula is a rare case to present. Osteomyelitis is clinical diagnosis with support of various investigation with proper surgical technique and various Differential Diagnosis it is treated with good satisfactory result. CASE REPORT: A 65-year-male operated 10 years back for tibial plateau fracture was asymptomatic but for last 3 months started pus discharging sinus from middle third of leg. We investigated and done implant removal with abnormal tissue abnormal bone was excised out, but very unusual presentation intraoperative necrotic massive debris was there like wood pieces mimic as neoplastic lesion, metastasis, fungal osteomyelitis, or granulomatous infection...
May 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29026829/aggressive-combined-medical-and-surgical-management-of-mucormycosis-results-in-disease-eradication-in-2-pediatric-patients
#14
Haley F M Augustine, Colin White, James Bain
Rhinocerebral mucormycosis is an acute, rapidly fatal, fungal infection, classically involving the nasal mucosa and paranasal sinuses. It is an aggressive, opportunistic infection that frequently progresses to involve the orbit and cerebrum. Cerebral extension in immunocompromised patients is almost universally fatal. There are limited data on mucormycosis in pediatric immunocompromised patients in the literature, with only few reports on rhinocerebral involvement. The immunocompromised patients described in this report presented with suspected periorbital and nasal cellulitis, progressing rapidly to necrotic changes in nasal tissue and oral palatal mucosa...
August 2017: Plastic Surgery
https://www.readbyqxmd.com/read/28950885/deep-cerebral-venous-thrombosis-mimicking-influenza-associated-acute-necrotizing-encephalopathy-a-case-report
#15
Daisuke Taniguchi, Sho Nakajima, Arisa Hayashida, Takuma Kuroki, Hiroto Eguchi, Yutaka Machida, Nobutaka Hattori, Hideto Miwa
BACKGROUND: Acute necrotizing encephalopathy is one of the most devastating neurological complications of influenza virus infection. Acute necrotizing encephalopathy preferentially affects the thalamus bilaterally, as does deep cerebral venous thrombosis, which can lead to misdiagnosis. CASE PRESENTATION: A 52-year-old Japanese woman infected with seasonal influenza B virus presented to the emergency care unit in our hospital with progressive alteration of her level of consciousness...
September 26, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28905513/large-cell-neuroendocrine-carcinoma-of-the-maxillary-sinus-on-fine-needle-aspiration-cytology-report-of-a-rare-case-with-a-focus-on-pitfalls-in-diagnosis
#16
Akihiko Kawahara, Takeharu Ono, Akiko Sumi, Hideyuki Abe, Yorihiko Takase, Kazuya Murata, Tomohiko Yamaguchi, Yoshiki Naito, Jun Akiba
Head and neck large cell neuroendocrine carcinoma (LCNEC) is a rare high-grade malignant tumor with neuroendocrine differentiation. We report a case of LCNEC causing difficulty in cytological diagnosis. A 60-year-old man with right-sided face pain presented with a swelling at the right cheek, and he complained of right nasal obstruction and lacrimation. Preoperative fine-needle aspiration cytology (FNAC) showed high cellularity, with a moderate number of clusters of tumor cells on an abundant necrotic background...
February 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28877577/a-case-of-pentastomiasis-at-the-left-maxilla-bone-in-a-patient-with-thyroid-cancer
#17
Eunae Sandra Cho, Seung Wook Jung, Hwi-Dong Jung, In Yong Lee, Tai-Soon Yong, Su Jin Jeong, Hyun Sil Kim
Pentastomiasis, a zoonotic parasite infection, is typically found in the respiratory tract and viscera of the host, including humans. Here, we report for the first time an extremely rare case of intraosseous pentastomiasis in the human maxilla suffering from medication related osteonecrosis of the jaw (MRONJ). A 55-year-old male had continuously visited the hospital for MRONJ which had primarily developed after bisphosphonate and anti-neoplastic administration for previous bone metastasis of medullary thyroid cancer...
August 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28803859/interventions-for-walled-off-necrosis-using-an-algorithm-based-endoscopic-step-up-approach-outcomes-in-a-large-cohort-of-patients
#18
Yukako Nemoto, Rajeev Attam, Mustafa A Arain, Guru Trikudanathan, Shawn Mallery, Gregory J Beilman, Martin L Freeman
OBJECTIVES: The minimally invasive step-up approach for treatment of walled off necrosis (WON) involves drainage followed by later necrosectomy as needed, and is superior to primary surgical necrosectomy. Reported series of endoscopic transluminal necrosectomy include highly selected patients. We report outcomes of a large series of patients with WON managed by an algorithm based on an endoscopically centered step-up approach. METHODS: Consecutive patients with necrotizing pancreatitis from 2009 to 2014, with intervention only for infected or persistently symptomatic WON...
September 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28769139/three-atypical-manifestations-of-granulomatosis-with-polyangiitis-lateral-medullary-syndrome-anterior-cheek-mass-and-melting-scleritis-of-eye
#19
Saeedeh Shenavandeh, Peyman Petramfar
Granulomatosis with polyangiitis (GPA, formerly Wegener granulomatosis) is a vasculitis with various organ involvement. There have been a few cases of CNS stroke and rare cases of lateral medullary infarction (LMI) as a manifestation of GPA. Also there have been reports of sinuses, nose and laryngeal masses mistakenly referred as carcinomas and subsequently GPA was diagnosed in their pathological reports. Another severe fulminant manifestation can be necrotizing scleritis leading to perforation of sclera. Therefore, here we present some rare and fulminant manifestations of GPA in 3 separate cases for further emphasis of the unusual manifestations of GPA that should always be kept in mind...
2017: Reumatologia
https://www.readbyqxmd.com/read/28707783/aggressive-necrotizing-pseudomonal-sinonasal-infections
#20
Edward C Kuan, Bobby A Tajudeen, Kevin C Welch, Rakesh K Chandra, Ben J Glasgow, Jeffrey D Suh
BACKGROUND: Pseudomonas aeruginosa is a gram-negative bacterium frequently implicated in recalcitrant sinonasal infections, especially in immunocompromised hosts. We report 6 cases of rapidly progressive pseudomonal acute rhinosinusitis producing tissue necrosis and, in certain cases, cranial nerve palsies. METHODS: Retrospective review of 6 patients with aggressive necrotizing sinonasal infections treated at 4 tertiary academic medical centers with sinonasal cultures growing P...
September 2017: International Forum of Allergy & Rhinology
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