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https://www.readbyqxmd.com/read/28432860/high-ki-67-expression-is-associated-with-prolactin-secreting-pituitary-adenomas
#1
Bogdan Bălinişteanu, Anca Maria Cîmpean, Amalia Raluca Ceauşu, Ana Silvia Corlan, Eugen Melnic, Marius Raica
Pituitary adenomas represent the third most common primary intracranial tumor in neurosurgical practice. To understand the biological behaviour of the pituitary adenomas previous studies have determined the tumor proliferation rate using monoclonal antibodies targeted against the Ki-67 antigen. The aim of this study was to correlate the Ki-67 index with hormonal profiles of pituitary adenomas. The study included 50 pituitary adenoma cases. For histopathologic evaluation, the sections were stained with routine hematoxylin and eosin method...
April 22, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28420847/the-successful-treatment-of-myeloperoxidase-antineutrophil-cytoplasmic-antibody-positive-hypertrophic-pachymeningitis-in-patients-with-the-limited-form-of-granulomatosis-with-polyangiitis-using-methotrexate-two-case-reports
#2
Shinjiro Kaieda, Naomi Yoshida, Midori Minezaki, Shuri Ushijima, Daisuke Wakasugi, Shiroh Miura, Yusuke Uchiyama, Hiroaki Ida, Tomoaki Hoshino
Recent findings have indicated a close relationship between myeloperoxidase antineutrophil cytoplasmic antibody (MPO-ANCA)-positive hypertrophic pachymeningitis and the limited form of granulomatosis with polyangiitis (GPA). In Japan, MPO-ANCA-positive hypertrophic pachymeningitis predominantly occurs in elderly individuals. We herein describe the cases of two patients with MPO-ANCA-positive hypertrophic pachymeningitis associated with the limited form of GPA who were successfully treated with a combination of corticosteroids and methotrexate...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28417160/diagnosis-of-recurrent-prostate-cancer-with-pet-ct-imaging-using-the-gastrin-releasing-peptide-receptor-antagonist-68-ga-rm2-preliminary-results-in-patients-with-negative-or-inconclusive-18-f-fluoroethylcholine-pet-ct
#3
Gesche Wieser, Ilinca Popp, H Christian Rischke, Vanessa Drendel, Anca-Ligia Grosu, Mark Bartholomä, Wolfgang A Weber, Rosalba Mansi, Ulrich Wetterauer, Wolfgang Schultze-Seemann, Philipp T Meyer, Cordula Annette Jilg
PURPOSE/BACKGROUND: [(18)F]fluoroethylcholine ((18)FECH) has been shown to be a valuable PET-tracer in recurrent prostate cancer (PCa), but still has limited accuracy. RM2 is a gastrin-releasing peptide receptor (GRPr) antagonist that binds to GRPr on PCa cells. Recent studies suggest that GRPr imaging with PET/CT is a promising technique for staging and restaging of PCa. We explore the value of GRPr-PET using the (68)Ga-labeled GRPr antagonist RM2 in a selected population of patients with biochemically recurrent PCa and a negative/inconclusive (18)FECH-PET/CT...
April 18, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28416516/semaphorin-4d-inhibits-neutrophil-activation-and-is-involved-in-the-pathogenesis-of-neutrophil-mediated-autoimmune-vasculitis
#4
Masayuki Nishide, Satoshi Nojima, Daisuke Ito, Hyota Takamatsu, Shohei Koyama, Sujin Kang, Tetsuya Kimura, Keiko Morimoto, Takashi Hosokawa, Yoshitomo Hayama, Yuhei Kinehara, Yasuhiro Kato, Takeshi Nakatani, Yoshimitsu Nakanishi, Takeshi Tsuda, Jeong Hoon Park, Toru Hirano, Yoshihito Shima, Masashi Narazaki, Eiichi Morii, Atsushi Kumanogoh
OBJECTIVES: Inappropriate activation of neutrophils plays a pathological role in antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). The aim of this study was to investigate the functions of semaphorin 4D (SEMA4D) in regulation of neutrophil activation, and its involvement in AAV pathogenesis. METHODS: Serum levels of soluble SEMA4D were evaluated by ELISA. Blood cell-surface expression of membrane SEMA4D was evaluated by flow cytometry. To determine the functional interactions between neutrophil membrane SEMA4D and endothelial plexin B2, wild-type and SEMA4D(-/-) mice neutrophils were cultured with an endothelial cell line (MS1) stained with SYTOX green, and subjected to neutrophil extracellular trap (NET) formation assays...
April 17, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28416008/a-guide-to-acquired-vitamin-k-coagulophathy-diagnosis-and-treatment-the-russian-perspective
#5
REVIEW
Valery V Wojciechowski, Daniela Calina, Konstantinos Tsarouhas, Alexander V Pivnik, Alexander A Sergievich, Vladimir V Kodintsev, Ekaterina A Filatova, Eren Ozcagli, Anca Oana Docea, Andreea Letitia Arsene, Eliza Gofita, Christina Tsitsimpikou, Aristidis M Tsatsakis, Kirill S Golokhvast
Physicians often come across with cases of vitamin K antagonists-dependent coagulopathy for reasons such as accidental use of the vitamin K antagonists (VKA), excessive administration of prescribed anticoagulants of indirect action or not reported administration of vitamin K antagonists due to memory impairment and/or other mental disorders, even deliberate use thereof (attempt to murder or suicide). Rodenticide-poisoning (coumarins, warfarins) via food or occupational accidents are difficult to diagnose. This article discusses different types of acquired vitamin K-dependent coagulopathy...
April 17, 2017: Daru: Journal of Faculty of Pharmacy, Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28414663/not-another-acs-rule-out
#6
S Preston, R Nelson, M Watts, D Smith, T Dewenter, D Spruill
CASE: A 50 year old African-American woman with diabetes, hypertension, and hyperlipidemia presented with progressively worsening retro-sternal chest pain, exacerbated by activity and relieved by rest. She also endorsed a thirty-pound unintentional weight loss, and dysphagia. She was dysarthric with left-sided Bell's Palsy and a palpable left axillary lymph node. She had been evaluated at several hospitals in the previous months for similar typical chest pain. Her troponin values were normal, and an EKG showed T-wave inversions in leads I and aVL...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28414331/a-new-fate-mapping-system-reveals-context-dependent-random-or-clonal-expansion-of-microglia
#7
Tuan Leng Tay, Dominic Mai, Jana Dautzenberg, Francisco Fernández-Klett, Gen Lin, Sagar, Moumita Datta, Anne Drougard, Thomas Stempfl, Alberto Ardura-Fabregat, Ori Staszewski, Anca Margineanu, Anje Sporbert, Lars M Steinmetz, J Andrew Pospisilik, Steffen Jung, Josef Priller, Dominic Grün, Olaf Ronneberger, Marco Prinz
Microglia constitute a highly specialized network of tissue-resident immune cells that is important for the control of tissue homeostasis and the resolution of diseases of the CNS. Little is known about how their spatial distribution is established and maintained in vivo. Here we establish a new multicolor fluorescence fate mapping system to monitor microglial dynamics during steady state and disease. Our findings suggest that microglia establish a dense network with regional differences, and the high regional turnover rates found challenge the universal concept of microglial longevity...
April 17, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28414152/rituximab-for-immunologic-renal-disease-what-the-nephrologist-needs-to-know
#8
REVIEW
Andreas Kronbichler, Martin Windpessl, Herwig Pieringer, David R W Jayne
Rituximab (RTX), a chimeric, monoclonal anti-CD20 antibody, is increasingly used in immune-mediated renal diseases. While licensed in the induction treatment of ANCA-associated vasculitis, it represents one of the most commonly prescribed off-label drugs. Much of the information regarding its safety has been drawn from experience in hematology and rheumatology. Ample evidence illustrates the safety of RTX, however, rare but serious adverse events have emerged that include progressive multifocal leucoencephalopathy and hepatitis B reactivation...
April 13, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28410589/lung-involvement-in-childhood-onset-granulomatosis-with-polyangiitis
#9
REVIEW
Giovanni Filocamo, Sofia Torreggiani, Carlo Agostoni, Susanna Esposito
Granulomatosis with polyangiitis is an ANCA-associated systemic vasculitis with a low incidence in the pediatric population. Lung involvement is a common manifestation in children affected by granulomatosis with polyangiitis, both at disease's onset and during flares. Its severity is variable, ranging from asymptomatic pulmonary lesions to dramatic life-threatening clinical presentations such as diffuse alveolar haemorrhage. Several radiologic findings have been described, but the most frequent abnormalities detected are nodular lesions and fixed infiltrates...
April 14, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28406765/maintenance-treatment-of-anca-associated-vasculitides
#10
REVIEW
Loic Guillevin
ANCA-associated vasculitis(AAV)covers a group of systemic necrotising vasculitides characterised by inflammation of small vessels, sometimes with granuloma, and associated with autoantibodies to neutrophil cytoplasmic proteases (proteinase-3 or myeloperoxidase). Potentially lethal if not promptly diagnosed and treated, AAV in most patients can be induced into remission with the current treatment modalities. However, the risk of relapse remains high, necessitating prolonged immunosuppressive or immunomodulating maintenance therapy, whose optimal duration remains undetermined...
April 5, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28401006/genomic-and-proteomic-characterization-of-arid1a-chromatin-remodeller-in-ampullary-tumors
#11
Anca Nastase, Jin Yao Teo, Hong Lee Heng, Cedric Chuan Young Ng, Swe Swe Myint, Vikneswari Rajasegaran, Jia Liang Loh, Ser Yee Lee, London Lucien Ooi, Alexander Yaw Fui Chung, Pierce Kah Hoe Chow, Peng Chung Cheow, Wei Keat Wan, Rafy Azhar, Avery Khoo, Sam Xin Xiu, Syed Muhammad Fahmy Alkaff, Ioana Cutcutache, Jing Quan Lim, Choon Kiat Ong, Vlad Herlea, Simona Dima, Dan G Duda, Bin Tean Teh, Irinel Popescu, Tony Kiat Hon Lim
AT rich interactive domain 1A (ARID1A) is one of the most commonly mutated genes in a broad variety of tumors. The mechanisms that involve ARID1A in ampullary cancer progression remains elusive. Here, we evaluated the frequency of ARID1A and KRAS mutations in ampullary adenomas and adenocarcinomas and in duodenal adenocarcinomas from two cohorts of patients from Singapore and Romania, correlated with clinical and pathological tumor features, and assessed the functional role of ARID1A. In the ampullary adenocarcinomas, the frequency of KRAS and ARID1A mutations was 34...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28400678/key-role-of-stat4-deficiency-in-the-hematopoietic-compartment-in-insulin-resistance-and-adipose-tissue-inflammation
#12
Anca D Dobrian, Kaiwen Ma, Lindsey M Glenn, Margaret A Hatcher, Bronson A Haynes, Eric J Lehrer, Mark H Kaplan, Jerry L Nadler
Visceral adipose tissue (AT) inflammation is linked to the complications of obesity, including insulin resistance (IR) and type 2 diabetes. Recent data from our lab showed that germline deficiency in STAT4 reduces inflammation and improves IR in obese mice. The objective of this study was to determine the contribution of selective STAT4 deficiency in subsets of hematopoietic cells to IR and AT inflammation. To determine the contribution of hematopoietic lineage, we sublethally irradiated Stat4(-/-)C57Bl6 mice and reconstituted them with bone marrow cells (BMC) from Stat4(+/+)C57Bl6 congenic donors...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28400446/randomized-trial-of-c5a-receptor-inhibitor-avacopan-in-anca-associated-vasculitis
#13
David R W Jayne, Annette N Bruchfeld, Lorraine Harper, Matthias Schaier, Michael C Venning, Patrick Hamilton, Volker Burst, Franziska Grundmann, Michel Jadoul, István Szombati, Vladimír Tesař, Mårten Segelmark, Antonia Potarca, Thomas J Schall, Pirow Bekker
Alternative C activation is involved in the pathogenesis of ANCA-associated vasculitis. However, glucocorticoids used as treatment contribute to the morbidity and mortality of vasculitis. We determined whether avacopan (CCX168), an orally administered, selective C5a receptor inhibitor, could replace oral glucocorticoids without compromising efficacy. In this randomized, placebo-controlled trial, adults with newly diagnosed or relapsing vasculitis received placebo plus prednisone starting at 60 mg daily (control group), avacopan (30 mg, twice daily) plus reduced-dose prednisone (20 mg daily), or avacopan (30 mg, twice daily) without prednisone...
April 11, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28397125/diffuse-alveolar-hemorrhage-in-autoimmune-diseases
#14
REVIEW
Marco Ulises Martínez-Martínez, David Alejandro Herrera-van Oostdam, Carlos Abud-Mendoza
PURPOSE OF REVIEW: The present paper establishes a narrative and analytical review of diffuse alveolar hemorrhage (DAH) in ANCA-associated vasculitis, systemic lupus erythematosus, and antiphospholipid syndrome. RECENT FINDINGS: Recent studies found a frequent association between DAH and infections and systemic lupus erythematosus and its associated factors. Biological therapies like rituximab have demonstrated benefit mainly in patients with ANCA-associated vasculitis...
May 2017: Current Rheumatology Reports
https://www.readbyqxmd.com/read/28395313/qualitative-and-semiquantitative-assessment-of-exposure-to-engineered-nanomaterials-within-the-french-epinano-program-inter-and-intramethod-reliability-study
#15
Irina Guseva Canu, Delphine Jezewski-Serra, Laurène Delabre, Stéphane Ducamp, Yuriko Iwatsubo, Sabine Audignon-Durand, Cécile Ducros, Anca Radauceanu, Catherine Durand, Olivier Witschger, Emmanuel Flahaut
The relatively recent development of industries working with nanomaterials has created challenges for exposure assessment. In this article, we propose a relatively simple approach to assessing nanomaterial exposures for the purposes of epidemiological studies of workers in these industries. This method consists of an onsite industrial hygiene visit of facilities carried out individually and a description of workstations where nano-objects and their agglomerates and aggregates (NOAA) are present using a standardized tool, the Onsite technical logbook...
January 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28394842/struma-ovarii-with-hyperthyroidism
#16
Lynn P Ang, Anca M Avram, Richard W Lieberman, Nazanene H Esfandiari
We report the case of a 61-year-old woman with persistent thyrotoxicosis for 7 years despite low thyroidal radioiodine uptake and methimazole treatment. Her initial I whole-body scan (WBS) was read as negative. Upon evaluation in our institution, she remained hyperthyroid after discontinuation of methimazole. Repeat WBS with SPECT/CT revealed low 24-hour thyroidal uptake (RAIU = 2%) and intensely focal radioiodine uptake in a large heterogeneous left pelvic mass, consistent with left adnexal struma ovarii. Resection of this mass confirmed benign struma ovarii...
April 7, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28392941/insulin-resistance-and-chronic-kidney-disease-in-patients-with-type-1-diabetes-mellitus
#17
Mihaela Vladu, Diana Clenciu, Ion Cristian Efrem, Mircea-Cătalin Forțofoiu, Anca Amzolini, Simona Tudorică Micu, Maria Moţa, Maria Forțofoiu
Background and Aims. Diabetes mellitus (DM) is a chronic disease which can evolve towards devastating micro- and macrovascular complications. DM is the most frequent cause of chronic kidney disease (CKD). Insulin resistance plays an important role in the natural history of type 1 diabetes. The purpose of the study was to determine the prevalence of CKD in T1DM and the correlation with insulin resistance (IR) in patients with CKD. Materials and Methods. The study was conducted over a period of three years (2010-2013) and included patients with DM registered in the Clinical Centre of Diabetes, Nutrition and Metabolic Diseases of Dolj county...
2017: Journal of Nutrition and Metabolism
https://www.readbyqxmd.com/read/28392137/brain-derived-neurotrophic-factor-levels-under-chronic-natalizumab-treatment-in-multiple-sclerosis-a-preliminary-report
#18
Vitalie Văcăraş, Zoltán Zsigmond Major, Anca Dana Buzoianu
AIM OF THE STUDY: Our main purpose was to investigate if the chronic treatment with the disease-modifying drug natalizumab shows quantifiable effect on BDNF levels in multiple sclerosis patients. MATERIALS AND METHODS: BDNF plasma concentration was evaluated using enzyme-linked immunosorbent assay in healthy individuals, not treated multiple sclerosis patients and patients treated with natalizumab. RESULTS: Multiple sclerosis patients have a significantly lower amount of peripheral BDNF than healthy individuals...
March 31, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28391344/is-there-a-role-for-tnf%C3%AE-blockade-in-anca-associated-vasculitis-and-glomerulonephritis
#19
Stephen P McAdoo, Charles D Pusey
Tumour necrosis factor alpha (TNFα) is a cytokine that is pivotal in the inflammatory response. Blockade of TNFα has been shown to be effective in a number of human autoimmune diseases, including rheumatoid arthritis, raising the question of whether this approach may be effective in inflammatory kidney disease, such as ANCA-associated vasculitis (AAV). In AAV, there is considerable evidence for the role of TNFα in the pathophysiology of disease, including increased expression of TNFα mRNA in leucocytes and in renal tissue...
January 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28391340/targeting-the-tyrosine-kinase-signalling-pathways-for-treatment-of-immune-mediated-glomerulonephritis-from-bench-to-bedside-and-beyond
#20
Terry King-Wing Ma, Stephen P McAdoo, Frederick Wai Keung Tam
Glomerulonephritis (GN) affects patients of all ages and is an important cause of morbidity and mortality. Non-selective immunosuppressive drugs have been used in immune-mediated GN but often result in systemic side effects and occasionally fatal infective complications. There is increasing evidence from both preclinical and clinical studies that abnormal activation of receptor and non-receptor tyrosine kinase signalling pathways are implicated in the pathogenesis of immune-mediated GN. Activation of spleen tyrosine kinase (SYK), Bruton's tyrosine kinase (BTK), platelet-derived growth factor receptor (PDGFR), epidermal growth factor receptor (EGFR) and discoidin domain receptor 1 (DDR1) have been demonstrated in anti-GBM disease...
January 1, 2017: Nephrology, Dialysis, Transplantation
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