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Holmström E, Myntti T, Sorsa T, Kruit H, Juhila J, Paavonen J, Rahkonen L, Stefanovic V. Cervical and Amniotic Fluid Matrix Metalloproteinase-8 and Interleukin-6 Concentrations in Preterm Pregnancies with or without Preterm Premature Rupture of Membranes. Fetal Diagn Ther 2018; 46:103-110. [PMID: 30308501 DOI: 10.1159/000493207] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 08/24/2018] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Intra-amniotic inflammation is defined by elevated inflammatory biomarkers in the amniotic fluid (AF), either due to microbial invasion of the amniotic cavity (MIAC) or sterile inflammation. Amniocentesis being an invasive procedure, we wanted to investigate whether elevated matrix metalloproteinase-8 (MMP-8) or interleukin-6 (IL-6) concentrations could be detected from cervical fluid samples. MATERIALS AND METHODS This prospective study included 67 women with singleton nondiabetic pregnancies with or without preterm premature rupture of membranes (PPROM) between 22+0 and 37+0 weeks of gestation. Simultaneous AF and cervical samples were obtained. RESULTS In women without PPROM, cervical MMP-8 concentrations correlated with AF MMP-8 concentrations (rS = 0.466, p = 0.002), but cervical IL-6 did not correlate with AF IL-6 (rS = 0.277, p = 0.076). In PPROM cases no correlations were found. Women with MIAC had higher concentrations of AF MMP-8 and AF IL-6 compared to women without MIAC regardless of membrane status. However, only women without PPROM had higher concentrations of cervical MMP-8 in proven MIAC. CONCLUSION In women without PPROM, cervical MMP-8 concentration reflects the magnitude of AF MMP-8, thus potentially guiding the selection of patients benefitting from amniocentesis.
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Affiliation(s)
- Emilia Holmström
- Department of Obstetrics and Gynecology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland,
| | - Tarja Myntti
- Department of Obstetrics and Gynecology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, Helsinki University Hospital, Helsinki, Finland.,Institute of Dentistry, University of Helsinki, Helsinki, Finland.,Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Heidi Kruit
- Department of Obstetrics and Gynecology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | | | - Jorma Paavonen
- Department of Obstetrics and Gynecology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Leena Rahkonen
- Department of Obstetrics and Gynecology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Vedran Stefanovic
- Department of Obstetrics and Gynecology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
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Ambarlı H, Mengüllüoğlu D, Fickel J, Förster DW. Population genetics of the main population of brown bears in southwest Asia. PeerJ 2018; 6:e5660. [PMID: 30258734 PMCID: PMC6152452 DOI: 10.7717/peerj.5660] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 08/29/2018] [Indexed: 12/01/2022] Open
Abstract
Genetic studies of the Eurasian brown bear (Ursus arctos) have so far focused on populations from Europe and North America, although the largest distribution area of brown bears is in Asia. In this study, we reveal population genetic parameters for the brown bear population inhabiting the Grand Kaçkar Mountains (GKM) in the north east of Turkey, western Lesser Caucasus. Using both hair (N = 147) and tissue samples (N = 7) collected between 2008 and 2014, we found substantial levels of genetic variation (10 microsatellite loci). Bear samples (hair) taken from rubbing trees worked better for genotyping than those from power poles, regardless of the year collected. Genotyping also revealed that bears moved between habitat patches, despite ongoing massive habitat alterations and the creation of large water reservoirs. This population has the potential to serve as a genetic reserve for future reintroductions in the Middle East. Due to the importance of the GKM population for on-going and future conservation actions, the impacts of habitat alterations in the region ought to be minimized; e.g., by establishing green bridges or corridors over reservoirs and major roads to maintain habitat connectivity and gene flow among populations in the Lesser Caucasus.
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Affiliation(s)
- Hüseyin Ambarlı
- Department of Wildlife Ecology and Management, Düzce Unviersity, Düzce, Turkey
| | | | - Jörns Fickel
- Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany.,Institute for Biochemistry and Biology, University of Potsdam, Potsdam, Germany
| | - Daniel W Förster
- Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
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Bhimji A, Bhaskaran A, Singer LG, Kumar D, Humar A, Pavan R, Lipton J, Kuruvilla J, Schuh A, Yee K, Minden MD, Schimmer A, Rotstein C, Keshavjee S, Mazzulli T, Husain S. Aspergillus galactomannan detection in exhaled breath condensate compared to bronchoalveolar lavage fluid for the diagnosis of invasive aspergillosis in immunocompromised patients. Clin Microbiol Infect 2017; 24:640-645. [PMID: 28970160 DOI: 10.1016/j.cmi.2017.09.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 09/25/2017] [Accepted: 09/26/2017] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Exhaled breath condensate (EBC) is a noninvasive means of sampling the airways that has shown significant promise in the diagnosis of many disorders. There have been no reports of its usefulness in the detection of galactomannan (GM), a component of the cell wall of Aspergillus. The suitability of EBC for the detection of GM for the diagnosis of invasive aspergillosis (IA) using the Platelia Aspergillus enzyme-linked immunosorbent assay was investigated. METHODS Prospective, cross-sectional study of lung transplant recipient and haemotologic malignancy patients at a university centre. EBC samples were compared to concomitant bronchoalveolar lavage (BAL) samples among lung transplant recipients and healthy controls. EBC was collected over 10 minutes using a refrigerated condenser according to the European Respiratory Society/American Thoracic Society recommendations, with the BAL performed immediately thereafter. RESULTS A total of 476 EBC specimens with 444 matched BAL specimens collected from lung transplant recipients (n = 197) or haemotologic malignancy patients (n = 133) were examined. Both diluted and untreated EBC optical density (OD) values (0.0830, interquartile range (IQR) 0.0680-0.1040; and 0.1130, IQR 0.0940-0.1383), respectively, from all patients regardless of clinical syndrome were significantly higher than OD values in healthy control EBCs (0.0508, IQR 0.0597-0.0652; p < 0.0001). However, the OD index values did not correlate with the diagnosis of IA (44 samples were associated with IA). Furthermore, no significant correlation was found between EBC GM and the matched BAL specimen. CONCLUSIONS GM is detectable in EBC; however, no correlation between OD index values and IA was noted in lung transplant recipients.
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Affiliation(s)
- A Bhimji
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Transplant Infectious Diseases, Multi-Organ Transplant Program, University Health Network, Toronto, Ontario, Canada
| | - A Bhaskaran
- Transplant Infectious Diseases, Multi-Organ Transplant Program, University Health Network, Toronto, Ontario, Canada
| | - L G Singer
- Toronto Lung Transplant Program, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University Health Network, Toronto, Ontario, Canada
| | - D Kumar
- Transplant Infectious Diseases, Multi-Organ Transplant Program, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University Health Network, Toronto, Ontario, Canada
| | - A Humar
- Transplant Infectious Diseases, Multi-Organ Transplant Program, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University Health Network, Toronto, Ontario, Canada
| | - R Pavan
- Transplant Infectious Diseases, Multi-Organ Transplant Program, University Health Network, Toronto, Ontario, Canada
| | - J Lipton
- Department of Medicine, University Health Network, Toronto, Ontario, Canada; Princess Margaret Cancer Centre, Mount Sinai Hospital, University Health Network, Toronto, Ontario, Canada; Division of Medical Oncology and Hematology, Mount Sinai Hospital, University Health Network, Toronto, Ontario, Canada
| | - J Kuruvilla
- Department of Medicine, University Health Network, Toronto, Ontario, Canada; Princess Margaret Cancer Centre, Mount Sinai Hospital, University Health Network, Toronto, Ontario, Canada; Division of Medical Oncology and Hematology, Mount Sinai Hospital, University Health Network, Toronto, Ontario, Canada
| | - A Schuh
- Department of Medicine, University Health Network, Toronto, Ontario, Canada; Princess Margaret Cancer Centre, Mount Sinai Hospital, University Health Network, Toronto, Ontario, Canada; Division of Medical Oncology and Hematology, Mount Sinai Hospital, University Health Network, Toronto, Ontario, Canada
| | - K Yee
- Department of Medicine, University Health Network, Toronto, Ontario, Canada; Princess Margaret Cancer Centre, Mount Sinai Hospital, University Health Network, Toronto, Ontario, Canada; Division of Medical Oncology and Hematology, Mount Sinai Hospital, University Health Network, Toronto, Ontario, Canada
| | - M D Minden
- Department of Medicine, University Health Network, Toronto, Ontario, Canada; Princess Margaret Cancer Centre, Mount Sinai Hospital, University Health Network, Toronto, Ontario, Canada; Division of Medical Oncology and Hematology, Mount Sinai Hospital, University Health Network, Toronto, Ontario, Canada
| | - A Schimmer
- Department of Medicine, University Health Network, Toronto, Ontario, Canada; Princess Margaret Cancer Centre, Mount Sinai Hospital, University Health Network, Toronto, Ontario, Canada; Division of Medical Oncology and Hematology, Mount Sinai Hospital, University Health Network, Toronto, Ontario, Canada
| | - C Rotstein
- Transplant Infectious Diseases, Multi-Organ Transplant Program, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University Health Network, Toronto, Ontario, Canada
| | - S Keshavjee
- Transplant Infectious Diseases, Multi-Organ Transplant Program, University Health Network, Toronto, Ontario, Canada; Toronto Lung Transplant Program, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University Health Network, Toronto, Ontario, Canada
| | - T Mazzulli
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Department of Microbiology, Mount Sinai Hospital, Toronto, Ontario, Canada.
| | - S Husain
- Transplant Infectious Diseases, Multi-Organ Transplant Program, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University Health Network, Toronto, Ontario, Canada.
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Shokry E, Marques JG, Ragazzo PC, Pereira NZ, Filho NRA. Earwax as an alternative specimen for forensic analysis. Forensic Toxicol 2017; 35:348-358. [PMID: 28912899 PMCID: PMC5559577 DOI: 10.1007/s11419-017-0363-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 03/15/2017] [Indexed: 11/27/2022]
Abstract
In this work, we presented, for the first time, earwax as an alternative forensic specimen for detecting 12 neuropsychotic drugs employing liquid chromatography-tandem mass spectrometry in positive and negative ion modes after straightforward extraction with methanol. The method was validated and standard curves were established by external calibration with correlation coefficients >0.99. All precision, accuracy, matrix effects, extraction recoveries, and carryover were within acceptable limits; limits of quantification were sufficiently low to quantify almost all the samples tested. To confirm the feasibility of the study, earwax specimens were collected from actual patients treated with different combinations of the 12 drugs and analyzed by our method; the 12 drugs could be quantified from the earwax specimens of the users successfully, showing usefulness of earwax specimens, because of its noninvasive sampling and the storage of drug(s) for relatively long time together with its being relatively less contaminated by environmental impurities. This study is pioneering; many detailed studies on earwax as an alternative specimen remain to be explored.
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Affiliation(s)
- Engy Shokry
- Laboratório de Métodos de Extração e Separação (LAMES), Universidade Federal de Goiás (UFG), Campus II, Samambaia, Instituto de Química (IQ), CEP 74690-900 Goiânia, GO Brazil
| | - Jair Gonzalez Marques
- Laboratório de Métodos de Extração e Separação (LAMES), Universidade Federal de Goiás (UFG), Campus II, Samambaia, Instituto de Química (IQ), CEP 74690-900 Goiânia, GO Brazil
| | - Paulo César Ragazzo
- Instituto de Neurologia de Goiânia, Praça Gilson Alves de Souza, no 140, Setor Bueno, CEP 74690-970 Goiânia, GO Brazil
| | - Naiara Zedes Pereira
- Laboratório de Métodos de Extração e Separação (LAMES), Universidade Federal de Goiás (UFG), Campus II, Samambaia, Instituto de Química (IQ), CEP 74690-900 Goiânia, GO Brazil
| | - Nelson Roberto Antoniosi Filho
- Laboratório de Métodos de Extração e Separação (LAMES), Universidade Federal de Goiás (UFG), Campus II, Samambaia, Instituto de Química (IQ), CEP 74690-900 Goiânia, GO Brazil
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