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APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica

Susanne Jacobsson, Bianca Stenmark, Sara Thulin Hedberg, Paula Mölling, Hans Fredlund
The aims of the study were to estimate the carrier state of Neisseria meningitidis in Swedish teenagers and its association with an outbreak at the World Scout Jamboree in 2015 as well as to compare sensitivity of throat versus nasopharyngeal swab for optimal detection of carriage. In total, 1 705 samples (cultures n = 32, throat swabs n = 715, nasopharyngeal swabs n = 958) from 1 020 Jamboree participants were collected and sent to the National Reference Laboratory for Neisseria meningitidis for culture and molecular analysis...
March 15, 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Taher Azimi, Mohammad Javad Nasiri, Alireza Salimi Chirani, Ramin Pouriran, Hossein Dabiri
Inflammatory bowel disease (IBD) is a general term used for the ulcerative colitis (UC) and Crohn's disease (CD); in addition, IBD principally refers to a chronic disease of the gastrointestinal tract in which mediated by immune system. Consequently, IBD could progress in individuals who are genetically prone. Infections role in the development of inflammatory disease of the gastrointestinal tract has been studied by quite many clinical studies; furthermore, the possible role of some pathogens in the development and exacerbation of the inflammatory disease of the gastrointestinal tract have been described...
March 6, 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Ben Davidson, Arild Holth, Zhihui Wang, Ellen Hellsylt, Claes G Tropé, Thea E Hetland Falkenthal, Ruth Holm
The objective of this study was to analyze the expression and clinical role of 14-3-3 family proteins in high-grade serous carcinoma (HGSC). Protein expression of 14-3-3 sigma (14-3-3σ) and 14-3-3 eta (14-3-3η) by immunohistochemistry was studied in 298 HGSC specimens (249 peritoneal, 49 pleural) and was analyzed for association with clinicopathologic parameters, chemoresponse and survival. The 14-3-3σ protein was diffusely (>75% of cells) expressed in 100% of carcinomas in analysis of a pilot series and was therefore not further analyzed...
February 21, 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Emad Kordbacheh, Shahram Nazarian, Abbas Hajizadeh, Davood Sadeghi
Vaccine delivery vehicles are just as important in vaccine efficiency. Through the progress in nanotechnology, various nanoparticles have been evaluated as carriers for these substances. Among them, alginate nanoparticles are a good choice because of their biodegradability, biocompatibility, ease of production, etc. In this study, feasibility of alginate nanoparticles (NPs) such as recombinant LTB from Enterotoxigenic Escherichia coli (ETEC) carrier was investigated. To do this, the eltb gene was cloned and expressed in E...
February 20, 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Andrea Palicelli, Pierluigi Neri, Giansilvio Marchioro, Paolo De Angelis, Gianmarco Bondonno, Antonio Ramponi
Primary extratesticular seminomas exceptionally occur in the epididymis or in the paratesticular region/spermatic cord. Some old papers included poor histological description or insufficient photographic documentation, reducing the number of faithful cases: an up-to-date systematic review is lacking. We report the 4th primary seminoma of the paratesticular region/spermatic cord in a 35-year-old man, including the first echographic description. We provide review of the literature and etiopathogenetic discussion...
February 7, 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Sergio Martínez-García, Sandra Rodríguez-Martínez, Mario E Cancino-Diaz, Juan C Cancino-Diaz
Staphylococci produce a large number of extracellular proteases, some of which are considered as potential virulence factors. Staphylococcus epidermidis is a causative agent of nosocomial infections in medical devices by the formation of biofilms. It has been proposed that proteases contribute to the different stages of biofilm formation. S. epidermidis secretes a small number of extracellular proteases, such as serine protease Esp, cysteine protease EcpA, and metalloprotease SepA that have a relatively low substrate specificity...
February 5, 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Suvradeep Mitra, Debajyoti Chatterjee, Ashim Das, Kirti Gupta, Bishan D Radotra, Arup K Mandal
Villous adenoma and urothelial carcinoma with villoglandular differentiation (UCVGD) are rare urothelial tumours showing villous morphology, the former being a preneoplastic entity and the latter being a malignant one. The detailed immunohistochemistry of these entities is previously not described in the literature. Moreover, a limited biopsy sample of UCVGD or a villous adenoma with or without adenocarcinoma may be difficult to distinguish on the basis of the histomorphology alone. An immunohistochemical panel comprising of GATA3, p63, β-catenin, CK7 and CK20 was performed on five cases of UCVGD and three cases of villous adenoma with the aim of studying the expression of the proteins thereby aiding in the diagnosis of these entities in a limited surgical pathology specimen...
February 4, 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Courtney A Waugh, Augustine Arukwe, Veerle L B Jaspers
Polychlorinated biphenyls (PCBs), and similar environmental contaminants, have been linked to virus outbreaks and increased viral induced mortality since the 1970s. Yet the mechanisms behind this increased susceptibility remain elusive. It has recently been illustrated that the innate immune viral detection system is tightly regulated by small non-coding RNAs, including microRNAs (miRNAs). For virus infections miRNA-155 expression is an important host response against infection, and deregulation of this miRNA is closely associated with adverse outcomes...
January 30, 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Vincenzo Villanacci, Luisa Lorenzi, Francesco Donato, Renata Auricchio, Piotr Dziechciarz, Judit Gyimesi, Sibylle Koletzko, Zrinjka Mišak, Vanesa Morente Laguna, Isabel Polanco, David Ramos, Raanan Shamir, Riccardo Troncone, Sabine L Vriezinga, M Luisa Mearin
Aim of the current study was to evaluate the inter-observer agreement between pathologists in the diagnosis of celiac disease (CD), in the qualified context of a multicenter study. Biopsies from the "PreventCD" study, a multinational- prospective- randomized study in children with at least one-first-degree relative with CD and positive for HLA-DQ2/HLA-DQ8. Ninety-eight biopsies were evaluated. Considering diagnostic samples with villous atrophy (VA), the agreement was satisfactory (κ = 0.84), but much less when assessing the severity of these lesions...
January 26, 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Fatemeh Mansouri, Rasoul Heydarzadeh, Saber Yousefi
Susceptibility to tuberculosis and progression of the disease depend on interactions between the bacterial agent, host immune system, and environmental and genetic factors. In this case-controlled study, we aimed to determine the role of single-nucleotide polymorphisms of interferon-gamma, interleukin-4 and interleukin-17 in susceptibility to tuberculosis. Genomic DNA was extracted from peripheral blood samples of patients and controls. The association of single-nucleotide polymorphisms in interleukin-4 (-590C/T), interleukin-17 (-152A/G) and interferon-gamma (+874T/A) was investigated by polymerase chain reaction (PCR)-restriction fragment length polymorphism and amplification refractory mutation system-PCR...
January 25, 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Roya Ahmadrajabi, Mohammad Sadegh Dalfardi, Alireza Farsinejad, Fereshteh Saffari
Although Enterococcus faecalis is known as normal flora in colon, it is also amongst the most common causative agents of infective endocarditis (IE). Platelet activation resulting from adherence to platelets is an essential step in the pathogenesis of IE. One of the factors proposed in adhesion is endocarditis- and biofilm- associated pili encoded by ebp operon. The aim of this study was to investigate ebp in isolates from different origins and analyze the potential of isolates to activate human platelets of different donors...
January 25, 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Hamed Memariani, Delavar Shahbazzadeh, Jean-Marc Sabatier, Kamran Pooshang Bagheri
The aim of this study was to evaluate the topical bactericidal activity of peptide PV3 against a MDR isolate of Pseudomonas aeruginosa in a mouse model of burn infection. The structural analysis of PV3 by circular dichroism spectroscopy indicated a low peptide helical content in water, whereas a high helical content was observed in the presence of the more hydrophobic 50% (v/v) trifluoroethanol/water buffer. A confocal microscopy analysis indicated that the main action of PV3 occurred at the membrane of bacteria...
January 12, 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Athena Chen, Drucilla J Roberts
Here, we review three important placental pathologies with significant clinical implications and recurrence risks. They are, in order of most to least frequently seen, villitis of unknown etiology, chronic histiocytic intervillositis, and massive perivillous fibrin deposition (also known as maternal floor infarction). These entities occur in both preterm and term gestations and are observed more frequently with maternal and obstetric disorders including prior pregnancy loss, hypertension/preeclampsia, and autoimmune disease...
December 22, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Sevin Kirdar, Neriman Aydin, Yasin Tiryaki, Bulent Ertugrul, Adil Coskun, Mehmet Bilgen
This paper gives an update on the local distributions of HCV genotypes in Aydin province of Turkey, provides a comparison with the previous records, and discusses the potential causal reasons shaping the evolving genotype profiles. Patient files from 2011 to 2016 were retrospectively analyzed, and newly detected cases were documented. Out of 286 patients, male and female ratios were determined to remain nearly the same (~50%). Genotype 1 was still the most common (90.2%), followed by genotype 3 (5.9%), genotype 2 (2...
December 21, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Camilla Sambleben, Andreas Dehlbaek Knudsen, Hans J Hartling, Claus H Nielsen, Susanne D Nielsen
Interleukin-10 (IL-10)-producing B cells (B10 cells) may inhibit HIV-specific T cells and are elevated in untreated HIV infection. We aimed to determine the effect of combination antiretroviral treatment (cART) on the proportion of B10 cells. Furthermore, we compared B10-cell proportions in HIV-infected progressors and viremic controllers. This was a prospective study including HIV-infected progressors, viremic controllers and healthy controls. Progressors initiating cART were followed for 6 months. Purified B cells were stimulated with CpG, alone or in combination with HIV gp120, and the proportion of B10 cells was measured by flow cytometry...
December 21, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
David Calderón Guzmán, Maribel Ortiz Herrera, Norma Osnaya Brizuela, Gerardo Barragán Mejía, Ernestina Hernández García, Hugo Juárez Olguín, Norma Labra Ruíz, Armando Valenzuela Peraza
The aim of this study was to determine the effect of oseltamivir and indomethacin on lipid peroxidation (LP), GABA levels, and ATPase activity in brain and stomach of normal and infected rats (IR), as novel inflammation model. Female Sprague Dawley rats grouped five each, either in the absence or presence of a live culture of Salmonella typhimurium (S. typh), were treated as follows: group 1 (control), PBS buffer; group 2, oseltamivir (100 mg/kg); group 3, indomethacin (67 μg/rat); group 4, oseltamivir (100 mg/kg) + indomethacin (67 μg/rat)...
December 21, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Sarita Saraswati, Abdulqader A Alhaider, Abdelgalil M Abdelgadir
Costunolide is known to possess anti-inflammatory and antitumor activity, but its role in tumor angiogenesis, the key step involved in tumor growth and metastasis, and the involved molecular mechanism is still unknown. We aimed to investigate the effects of costunolide on key components of inflammatory angiogenesis in the murine cannulated sponge implant angiogenesis model. Polyester-polyurethane sponges, used as a framework for fibrovascular tissue growth, were implanted in Swiss albino mice and costunolide (5, 10 and 20 mg/kg/day) was administered for 14 days through installed cannula...
March 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Azar Dokht Khosravi, Hossein Meghdadi, Ata A Ghadiri, Ameneh Alami, Amir Hossein Sina, Mehdi Mirsaeidi
The aim of this study was to analyze mutations occurring in the rpoB gene of Mycobacterium tuberculosis (MTB) isolates from clinical samples of extrapulmonary tuberculosis (EPTB). Seventy formalin-fixed, paraffin-embedded samples and fresh tissue samples from confirmed EPTB cases were analyzed. Nested PCR based on the rpoB gene was performed on the extracted DNAs, combined with cloning and subsequent sequencing. Sixty-seven (95.7%) samples were positive for nester PCR. Sequence analysis of the 81 bp region of the rpoB gene demonstrated mutations in 41 (61...
March 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Emma Peurala, Mirella Tuominen, Eliisa Löyttyniemi, Stina Syrjänen, Jaana Rautava
Eosinophils are frequently encountered with squamous cell carcinomas (SCC) and it has been proposed that tumor-associated tissue eosinophilia (TATE) could be of prognostic significance in oral SCC. The aim was to evaluate TATE in 83 oral cavity and 16 lip SCCs as well as the best possible use of TATE as a prognostic marker. The number of eosinophils was counted per high power fields (HPF, ×400) in three different representative areas of the tumor and its stroma. The degree of TATE was analyzed in relation to clinicopathological features of tumors and patients' survival (follow-up mean 40...
March 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
Abdurahman H Hirad, Javed Ahmad, Abdulaziz A Alkhedhairy, Ali H Bahkali, Shams T Khan
Customary consumption of unpasteurized milk by the population in the central Najed region of Saudi Arabia may pose a health risk. Therefore, 80 camel milk samples were collected aseptically from seven different stations of Riyadh region. The biochemical and microbiological properties of these milk samples were determined. Nutrient agar and brain heart infusion agar were used to determine mesophilic aerobic counts (MACs). The MAC in each mL of milk varied from 60 to 16 × 104  CFU/mL on nutrient agar. Based on the colony morphology, 176 colonies were collected from different samples, and these isolates were de-replicated into 80 unique isolates using rep-PCR analysis...
March 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
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