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APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica

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https://www.readbyqxmd.com/read/29327480/membrane-active-peptide-pv3-efficiently-eradicates-multidrug-resistant-pseudomonas-aeruginosa-in-a-mouse-model-of-burn-infection
#1
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
https://www.readbyqxmd.com/read/29271494/placental-pathologic-lesions-with-a-significant-recurrence-risk-what-not-to-miss
#2
REVIEW
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
https://www.readbyqxmd.com/read/29271117/dynamics-of-hcv-epidemiology-in-aydin-province-of-turkey-and-the-associated-factors
#3
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
https://www.readbyqxmd.com/read/29271094/increased-proportions-of-b-cells-with-spontaneous-production-of-interleukin-10-in-hiv-infected-individuals-are-normalized-during-combination-antiretroviral-therapy-a-longitudinal-study
#4
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
https://www.readbyqxmd.com/read/29271004/oseltamivir-and-indomethacin-reduce-the-oxidative-stress-in-brain-and-stomach-of-infected-rats
#5
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
https://www.readbyqxmd.com/read/29235156/ifn-%C3%AE-against-the-38-kda-antigen-of-mycobacterium-tuberculosis-discriminates-pulmonary-tuberculosis-from-infection-and-infection-from-exposure-evidence-from-a-study-of-human-population-in-a-high-endemic-setting
#6
Fekadu Abebe, Mulugeta Belay, Mengistu Legesse
Mycobacterium tuberculosis (Mtb) 38-kDa antigen is an immunogenic lipoprotein that induces strong T-cell responses in experimental animals. However, there is limited information on the role of this antigen in human population. In this article, we present the dynamics of pro-inflammatory (IFN-γ and TNF-α) and anti-inflammatory cytokine (IL-10) against the 38 kDa in cohorts of pulmonary TB (PTB) patients, household contacts (HHCs), and community controls (CCs) in a high endemic setting. Whole blood assay was used to determine the levels of cytokines in 149 patients, 149 HHCs, and 68 CCs at baseline, 6 months, and 12 months...
December 13, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29235145/macrolide-and-fluoroquinolone-resistance-in-mycoplasma-genitalium-in-two-swedish-counties-2011-2015
#7
Ronza Hadad, Daniel Golparian, Amaya C Lagos, Johan Ljungberg, Peter Nilsson, Jörgen S Jensen, Hans Fredlund, Magnus Unemo
Mycoplasma genitalium, causing non-gonococcal non-chlamydial urethritis and associated with cervicitis, has developed antimicrobial resistance (AMR) to both the macrolide azithromycin (first-line treatment) and the fluoroquinolone moxifloxacin (second-line treatment). Our aim was to estimate the prevalence of resistance, based on genetic AMR determinants, to these antimicrobials in the M. genitalium population in two Swedish counties, Örebro and Halland, 2011-2015. In total, 672 M. genitalium positive urogenital samples were sequenced for 23S rRNA and parC gene mutations associated with macrolide and fluoroquinolone resistance, respectively...
December 13, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29235141/pseudomesotheliomatous-carcinoma-of-the-pleura-an-autopsy-case-of-metastasis-from-a-g-csf-producing-anaplastic-carcinoma-of-the-pancreas
#8
Yui Hattori, Kazuhiro Sentani, Takuya Hattori, Naohide Oue, Wataru Yasui
Pseudomesotheliomatous carcinoma is a malignant tumor that extends along the pleura mimicking malignant mesothelioma. An 81-year-old male patient presented to our hospital with epigastralgia, and abdominal computed tomography (CT) showed a 36-mm tumor in the pancreatic tail. The laboratory data revealed a high leukocyte count (>44 000/μL). Chest CT showed left pleural thickening with pleural effusion. The cancer showed a poor response to chemotherapy, and the patient died of respiratory failure at 5 months after the onset of disease...
December 13, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29193305/the-genetically-determined-production-of-the-alarmin-eosinophil-derived-neurotoxin-is-reduced-in-visceral-leishmaniasis
#9
Kristin Blom, Amir I Elshafie, Ulla-Britt Jönsson, Johan Rönnelid, Lena Douhan Håkansson, Per Venge
Visceral leishmaniasis (VL) is the most severe form of leishmaniasis. Recent findings indicate that dendritic cells have a key role in the defense against the Leishmania parasite and that the activity of this cell may be modified by the eosinophil secretory protein eosinophil-derived neurotoxin (EDN). We hypothesized that the interactions between dendritic cells and EDN might be of importance in the disease development. Cellular content of EDN was analyzed by ELISA. The single-nucleotide polymorphisms at positions 405, 416, and 1122 in the EDN gene were analyzed by real-time PCR with TaqMan® reagents...
November 29, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29266433/napsin-a-and-wt-1-are-useful-immunohistochemical-markers-for-differentiating-clear-cell-carcinoma-ovary-from-high-grade-serous-carcinoma
#10
Bharat Rekhi, Kedar K Deodhar, Santosh Menon, Amita Maheshwari, Jyoti Bajpai, Jaya Ghosh, Surappa Thumkur Shylasree, Sudeep Gupta
Clear cell carcinoma (CCC) of the ovary is an uncommon, but an aggressive epithelial ovarian cancer (EOC), which has overlapping histopathologic features with other ovarian tumours. Lately, Napsin A has been identified as its useful diagnostic immunohistochemical (IHC) marker. Fifty-eight prospectively diagnosed ovarian CCCs, 53 high-grade serous carcinomas (HGSCs), 16 endometrioid adenocarcinomas (EMACs), six mixed carcinomas, containing components of CCC and EMAC, seven metastatic mucinous adenocarcinomas and six ovarian yolk sac tumours (YSTs) were tested for Napsin A immunostaining...
November 20, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29155473/relationship-between-hepatic-progenitor-cells-and-stellate-cells-in-chronic-hepatitis-c-genotype-4
#11
Thanaa El Sayed Ahmed Helal, Nermine Ahmed Ehsan, Nehal Ahmed Radwan, Eman Abdelsameea
Hepatitis C virus (HCV) infection represents a major health problem in many areas of the world, especially Egypt. Hepatic progenitor cells (HPCs) and hepatic stellate cells (HSCs) have been implicated in fibrosis progression in chronic HCV. The aim of this study was to investigate the role of HPCs and HSCs in chronic HCV infection and the relationship between both cell types. This retrospective study was conducted on 100 chronic HCV patients. Immunohistochemistry was performed on liver tissue sections for cytokeratin 19 (progenitor cell markers), smooth muscle actin (stellate cell markers), matrix metalloproteinase-9 (MMP-9), and transforming growth factor beta (TGF-ß)...
November 20, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29155459/erysipelothrix-rhusiopathiae-serotype-5-associated-metritis-in-a-norwegian-red-heifer
#12
Øyvor Kolbjørnsen, Bjarne Bergsjø, Jeanette Sveen, Tanja Opriessnig
This report summarized the findings of a case of Erysipelothrix rhusiopathiae infection in a farmed Norwegian Red heifer located in the south-east of Norway. The 2.5-year-old pregnant heifer was found dead after a short episode of inappetence. On gross exam, the heifer was severely dehydrated with uterine torsion. Microscopically, necrosis of the endometrium was present throughout the uterus along with presence of intralesional Gram-positive bacteria, interstitial nephritis, and pyelonephritis. E. rhusiopathiae was isolated from the uterus and placenta and was also demonstrated by immunohistochemistry (IHC) in the uterus, placenta, and kidney...
November 20, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29155458/localization-of-surfactant-protein-d-in-the-rheumatoid-synovial-membrane
#13
Anne Friesgaard Christensen, Grith Lykke Sorensen, Kirsten Junker, Peter Hvidbak Revald, Claus Varnum, Flemming Brandt Sorensen, Peter Junker
Surfactant protein-D (SP-D) is a collectin, which plays an important role in airway protection and inflammation. The molecule has both pro- and anti-inflammatory capacities depending on its molecular size. Its involvement in joint diseases is largely unknown and the aim of this investigation was to study SP-D occurrence and distribution in the synovial membrane of patients with long-standing rheumatoid arthritis (RA) and osteoarthritis (OA). Six RA patients and six OA patients, who underwent total hip arthroplasty, were included in the study...
November 20, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29154480/in-vitro-activity-and-time-kill-curve-analysis-of-sitafloxacin-against-a-global-panel-of-antimicrobial-resistant-and-multidrug-resistant-neisseria-gonorrhoeae-isolates
#14
Agnez Jönsson, Sunniva Foerster, Daniel Golparian, Ryoichi Hamasuna, Susanne Jacobsson, Magnus Lindberg, Jörgen Skov Jensen, Makoto Ohnishi, Magnus Unemo
Treatment of gonorrhoea is a challenge worldwide because of emergence of resistance in N. gonorrhoeae to all therapeutic antimicrobials available and novel antimicrobials are imperative. The newer-generation fluoroquinolone sitafloxacin, mostly used for respiratory tract infections in Japan, can have a high in vitro activity against gonococci. However, only a limited number of recent antimicrobial-resistant isolates from Japan have been examined. We investigated the sitafloxacin activity against a global gonococcal panel (250 isolates cultured in 1991-2013), including multidrug-resistant geographically, temporally and genetically diverse isolates, and performed time-kill curve analysis for sitafloxacin...
November 20, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29154446/transmission-electron-microscopy-helpfulness-in-whipple-s-disease-masked-by-immunosuppressant-therapy-for-arthritis
#15
Alessandra Loiodice, Giuseppe Losurdo, Andrea Iannone, Roberta Rossi, Maria Grazia Fiore, Domenico Piscitelli
A 61-year-old woman received a diagnosis of undifferentiated non-erosive arthritis in 2010 and assumed methotrexate and steroids in 2014. After 1 year, she experienced watery diarrhea, vomiting, fever, weight loss, and severe hypoalbuminemia, thus being admitted into our Unit. Esophagogastroduodenoscopy showed duodenal lymphangiectasia and duodenal biopsy samples several foamy PAS-positive macrophages and villous subtotal atrophy. Transmission electron microscope demonstrated several extracellular and intracellular rod-shaped bacteria (Tropheryma whipplei)...
November 20, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29154438/impact-of-heat-shock-protein-60kd-in-combination-with-outer-membrane-proteins-on-immune-response-against-brucella-melitensis
#16
Tooba Abbassi-Daloii, Soheil Yousefi, Mohammad Hadi Sekhavati, Mojtaba Tahmoorespur
Brucellosis caused by the bacterium Brucella affects various domestic and wild species. The outer membrane proteins 25 and 31 play key roles on stimulation of cell-mediated immune response against Brucella. GroEL as one of the major Brucella antigens stimulates the immune system and increases intracellular survival of bacteria. In the present study, we assumed injection of GroEL in combination with OMP25 and OMP31 would offer higher immunity levels. So, the impact of GroEL with different concentrations of recombinant outer membrane proteins emulsified in Chitosan Nanoparticles on immune responses was evaluated in mice model...
November 20, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29154394/fibrin-thrombi-in-deceased-donor-kidneys-prevalence-and-influence-on-graft-function-and-graft-survival-in-transplanted-patients
#17
Ditte Hansen, Sara Rørvig, Claus B Andersen, Søren S Sørensen
Fibrin thrombi (FT) are occasionally found in the pre-implantation biopsy of kidneys from deceased donors. The aim of this study was to monitor the prevalence and answer the question whether FT has any impact on future graft function in a Danish patient cohort. We looked for FT in all donor kidney biopsies taken at the time of renal transplantation in a Danish transplantation unit during a 10-year period. Every recipient transplanted with a FT donor kidney (n = 15) were matched with up to five control recipients (n = 69), and graft function and graft survival were assessed...
November 20, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29154391/the-value-of-microscopic-observation-drug-susceptibility-assay-in-the-diagnosis-of-tuberculosis-and-detection-of-multidrug-resistance
#18
Denİz Sertel Şelale, Meltem Uzun
Inexpensive, rapid, and reliable tests for detecting the presence and drug susceptibility of Mycobacterium tuberculosis complex (MTBC) are urgently needed to control the transmission of tuberculosis. In this study, we aimed to assess the accuracy and speed of the microscopic-observation drug susceptibility (MODS) assay in the identification of MTBC and detection of multidrug resistance. Sputum samples from patients suspected to have tuberculosis were simultaneously tested with MODS and conventional culture [Löwenstein-Jensen (LJ) culture, BACTEC MGIT™ 960 (MGIT) system], and drug susceptibility testing (MGIT system) methods...
November 20, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29135055/the-modulatory-role-of-cytokines-il-4-and-il-17-in-the-functional-activity-of-phagocytes-in-diabetic-pregnant-women
#19
Danny L G Fagundes, Eduardo L França, Michelangelo B Gonzatti, Marilza V C Rugde, Iracema M P Calderon, Adenilda C Honorio-França
The study investigated the role of cytokines IL-4 and IL-17 in the modulation of the functional activity of mononuclear phagocytes in diabetic pregnant women with hyperglycemia. Sixty pregnant women were assigned to the following groups: nondiabetic (ND), mild gestational hyperglycemia (MGH), gestational diabetes mellitus (GDM), or type 2 diabetes mellitus (DM2). The functional activity of phagocytes from maternal blood, cord blood, and colostrum was assessed by determining their superoxide release, phagocytosis, microbicidal activity, and intracellular Ca(2+) release...
November 14, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29135054/association-of-helicobacter-pylori-infection-with-toll-like-receptor-4-thr399ile-polymorphism-increased-the-risk-of-peptic-ulcer-development-in-north-of-iran
#20
Mehdi Tourani, Maryam Habibzadeh, Javad Shokri-Shirvani, Omid Teymournejad, Amrollah Mostafazadeh, Soraya Khafri, Hamid Reza Nouri
Toll-like receptor-4 (TLR4) polymorphisms may influence host immune response against Helicobacter pylori (H. pylori). This study aimed to investigate whether TLR4 polymorphisms are associated with H. pylori susceptibility and risk of peptic ulcer development or not. The TLR4 + 3725 G/C polymorphism was studied using polymerase chain reaction with confronting two-pair primers (PCR-CTPP). In addition, TLR4 Asp299Gly and Thr399Ile polymorphisms were evaluated by PCR-restriction fragment length polymorphism (RFLP)...
November 14, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
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