1
|
Grecu LI, Sultana C, Pavel-Tanasa M, Ruta SM, Chivu-Economescu M, Matei L, Ursu RG, Iftimi E, Iancu LS. Non-Invasive Prediction Scores for Hepatitis B Virus- and Hepatitis D Virus-Infected Patients-A Cohort from the North-Eastern Part of Romania. Microorganisms 2023; 11:2895. [PMID: 38138039 PMCID: PMC10745361 DOI: 10.3390/microorganisms11122895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 11/22/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023] Open
Abstract
Approximately 62-72 million people are infected worldwide with HDV. Patients with chronic hepatitis D (CHD) have a higher risk of developing cirrhosis or hepatocellular carcinoma (HCC) and an increased mortality rate compared to those with chronic hepatitis B (CHB). The stage of liver fibrosis or the risk of developing HCC can also be estimated by non-invasive scores, which are cost effective, easier to apply, and reproducible. In this study, we aimed to evaluate the predictive value of four non-invasive scores (FIB-4, APRI, AST/ALT ratio, and aMAP) in assessing severe fibrosis/cirrhosis and the presence of HCC in patients with HBV/HDV superinfection, as compared with HBV mono-infection. Our 8-year retrospective analysis revealed that HDV-infected patients had a 2-3 times higher risk of developing cirrhosis and HCC than HBV-mono-infected subjects. High AST and ALT baseline levels qualified as independent predictors for cirrhosis development in both groups. The following fibrosis scores, FIB-4, APRI score, and AAR, were significantly increased when cirrhosis was present at baseline and showed a good prediction for developing cirrhosis in the CHD group. The aMAP score, a risk predictor for HCC, showed significantly higher values in patients with HCC in both groups. Nonetheless, non-invasive scores should always be considered for monitoring patients with CHB and CHD, but only when associated with other diagnosis methods.
Collapse
Affiliation(s)
- Laura Iulia Grecu
- Department of Preventive Medicine and Interdisciplinarity, Microbiology Discipline, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (L.I.G.); (R.G.U.); (L.S.I.)
- Department of Emerging Viral Diseases, “Stefan S. Nicolau” Institute of Virology, 030304 Bucharest, Romania;
| | - Camelia Sultana
- Department of Emerging Viral Diseases, “Stefan S. Nicolau” Institute of Virology, 030304 Bucharest, Romania;
- Virology Discipline, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Mariana Pavel-Tanasa
- Department of Immunology, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
| | - Simona Maria Ruta
- Department of Emerging Viral Diseases, “Stefan S. Nicolau” Institute of Virology, 030304 Bucharest, Romania;
- Virology Discipline, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Mihaela Chivu-Economescu
- Department of Cellular and Molecular Pathology, “Stefan S. Nicolau” Institute of Virology, 030304 Bucharest, Romania; (M.C.-E.)
| | - Lilia Matei
- Department of Cellular and Molecular Pathology, “Stefan S. Nicolau” Institute of Virology, 030304 Bucharest, Romania; (M.C.-E.)
| | - Ramona Gabriela Ursu
- Department of Preventive Medicine and Interdisciplinarity, Microbiology Discipline, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (L.I.G.); (R.G.U.); (L.S.I.)
| | - Elena Iftimi
- Department of Immunology, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
| | - Luminita Smaranda Iancu
- Department of Preventive Medicine and Interdisciplinarity, Microbiology Discipline, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (L.I.G.); (R.G.U.); (L.S.I.)
| |
Collapse
|
2
|
Andrioaie IM, Luchian I, Dămian C, Nichitean G, Andrese EP, Pantilimonescu TF, Trandabăț B, Prisacariu LJ, Budală DG, Dimitriu DC, Iancu LS, Ursu RG. The Clinical Utility of Circulating HPV DNA Biomarker in Oropharyngeal, Cervical, Anal, and Skin HPV-Related Cancers: A Review. Pathogens 2023; 12:908. [PMID: 37513755 PMCID: PMC10383289 DOI: 10.3390/pathogens12070908] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 06/16/2023] [Revised: 06/30/2023] [Accepted: 07/03/2023] [Indexed: 07/30/2023] Open
Abstract
Human papillomavirus (HPV) is recognized as being related to a wide variety of known cancers: cervical, oropharyngeal, anal, vaginal, penile, and skin. For some of these cancers, rigorous algorithms for screening, therapeutical interventions, and follow-up procedures have been established. Vaccination using the nonvalent anti-HPV vaccine, which prevents infection regarding the most frequently involved high-risk HPV types (16, 18, 31, 33, 45, 52, and 58) and low-risk HPV types (6 and 11), has also extensively prevented, controlled, and even eradicated HPV infections. Still, even with all of these multidisciplinary interventions, the burden of HPV cancers is still high worldwide. The circulating DNA of HPV-induced cancers is thought to be an adequate biomarker for optimizing the control of these virus-related cancers. We analyzed the literature published in the last 5 years regarding ctDNA and four of the above-mentioned cancers. The most frequently used assay for ctDNA detection was the droplet digital PCR assay, used for the management of therapy in the late stages of cancer. ctDNA could not be used for early detection in any of the studied cancers. The OPSCCs were the most frequent cancers analyzed via ctDNA assays. Larger, properly designed cohort studies might establish the clinical utility of this biomarker.
Collapse
Affiliation(s)
- Ioana Maria Andrioaie
- Department and Preventive Medicine and Interdisciplinarity (IX)-Microbiology, Faculty of Medicine, "Grigore, T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Ionut Luchian
- Department of Periodontology, Faculty of Dental Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Costin Dămian
- Department and Preventive Medicine and Interdisciplinarity (IX)-Microbiology, Faculty of Medicine, "Grigore, T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Giorgio Nichitean
- Department of Periodontology, Faculty of Dental Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Elena Porumb Andrese
- Department of Medical Specialties (III)-Dermatology, Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Theodor Florin Pantilimonescu
- Department of Morpho-Functional Sciences II-Physiology, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | | | | | - Dana Gabriela Budală
- Department of Removable Dentures, Faculty of Dental Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Daniela Cristina Dimitriu
- Department of Biochemistry, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
- Gynecology and Obstetrics Hospital-Cuza Voda, 700038 Iasi, Romania
| | - Luminita Smaranda Iancu
- Department and Preventive Medicine and Interdisciplinarity (IX)-Microbiology, Faculty of Medicine, "Grigore, T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Ramona Gabriela Ursu
- Department and Preventive Medicine and Interdisciplinarity (IX)-Microbiology, Faculty of Medicine, "Grigore, T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
- Gynecology and Obstetrics Hospital-Cuza Voda, 700038 Iasi, Romania
| |
Collapse
|
3
|
Luchian I, Budală DG, Baciu ER, Ursu RG, Diaconu-Popa D, Butnaru O, Tatarciuc M. The Involvement of Photobiology in Contemporary Dentistry-A Narrative Review. Int J Mol Sci 2023; 24:ijms24043985. [PMID: 36835395 PMCID: PMC9961259 DOI: 10.3390/ijms24043985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/14/2023] [Accepted: 02/14/2023] [Indexed: 02/18/2023] Open
Abstract
Light is an emerging treatment approach that is being used to treat many diseases and conditions such as pain, inflammation, and wound healing. The light used in dental therapy generally lies in visible and invisible spectral regions. Despite many positive results in the treatment of different conditions, this therapy still faces some skepticism, which has prevented its widespread adoption in clinics. The main reason for this skepticism is the lack of comprehensive information about the molecular, cellular, and tissular mechanisms of action, which underpin the positive effects of phototherapy. However, there is currently promising evidence in support of the use of light therapy across a spectrum of oral hard and soft tissues, as well as in a variety of important dental subspecialties, such as endodontics, periodontics, orthodontics, and maxillofacial surgery. The merging of diagnostic and therapeutic light procedures is also seen as a promising area for future expansion. In the next decade, several light technologies are foreseen as becoming integral parts of modern dentistry practice.
Collapse
Affiliation(s)
- Ionut Luchian
- Department of Periodontology, Faculty of Dental Medicine, Grigore T. Popa University of Medicine and Pharmacy, 700115 Iași, Romania
| | - Dana Gabriela Budală
- Department of Prosthodontics, Faculty of Dental Medicine, Grigore T. Popa University of Medicine and Pharmacy, 700115 Iași, Romania
- Correspondence: (D.G.B.); (E.-R.B.)
| | - Elena-Raluca Baciu
- Department of Dental Materials, Faculty of Dental Medicine, Grigore T. Popa University of Medicine and Pharmacy, 700115 Iași, Romania
- Correspondence: (D.G.B.); (E.-R.B.)
| | - Ramona Gabriela Ursu
- Department of Preventive Medicine and Interdisciplinarity (IX)—Microbiology, Faculty of Medicine, Grigore T. Popa University of Medicine and Pharmacy, 700115 Iaşi, Romania
| | - Diana Diaconu-Popa
- Department of Dental Technology, Faculty of Dental Medicine, Grigore T. Popa University of Medicine and Pharmacy, 700115 Iași, Romania
| | - Oana Butnaru
- Department of Biophysics, Faculty of Dental Medicine, Grigore T. Popa University of Medicine and Pharmacy, 700115 Iași, Romania
| | - Monica Tatarciuc
- Department of Dental Technology, Faculty of Dental Medicine, Grigore T. Popa University of Medicine and Pharmacy, 700115 Iași, Romania
| |
Collapse
|
4
|
Manole B, Damian C, Giusca SE, Caruntu ID, Porumb-Andrese E, Lunca C, Dorneanu OS, Iancu LS, Ursu RG. The Influence of Oncogenic Viruses in Renal Carcinogenesis: Pros and Cons. Pathogens 2022; 11:pathogens11070757. [PMID: 35890003 PMCID: PMC9319782 DOI: 10.3390/pathogens11070757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/29/2022] [Accepted: 06/30/2022] [Indexed: 02/05/2023] Open
Abstract
Viral infections are major contributors to the global cancer burden. Recent advances have revealed that known oncogenic viruses promote carcinogenesis through shared host cell targets and pathways. The aim of this review is to point out the connection between several oncogenic viruses from the Polyomaviridae, Herpesviridae and Flaviviridae families and renal carcinogenesis, highlighting their involvement in the carcinogenic mechanism. We performed a systematic search of the PubMed and EMBASE databases, which was carried out for all the published studies on RCC in the last 10 years, using the following search algorithm: renal cell carcinoma (RCC) and urothelial carcinoma, and oncogenic viruses (BKPyV, EBV, HCV, HPV and Kaposi Sarcoma Virus), RCC and biomarkers, immunohistochemistry (IHC). Our analysis included studies that were published in English from the 1st of January 2012 to the 1st of May 2022 and that described and analyzed the assays used for the detection of oncogenic viruses in RCC and urothelial carcinoma. The virus most frequently associated with RCC was BKPyV. This review of the literature will help to understand the pathogenic mechanism of the main type of renal malignancy and whether the viral etiology can be confirmed, at a minimum, as a co-factor. In consequence, these data can contribute to the development of new therapeutic strategies. A virus-induced tumor could be efficiently prevented by vaccination or treatment with oncolytic viral therapy and/or by targeted therapy.
Collapse
Affiliation(s)
- Bianca Manole
- Department of Morphofunctional Sciences I-Histolgy, Pathology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (B.M.); (S.-E.G.); (I.D.C.)
| | - Costin Damian
- Department of Microbiology, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (O.S.D.); (L.S.I.); (R.G.U.)
- Correspondence: (C.D.); (C.L.)
| | - Simona-Eliza Giusca
- Department of Morphofunctional Sciences I-Histolgy, Pathology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (B.M.); (S.-E.G.); (I.D.C.)
| | - Irina Draga Caruntu
- Department of Morphofunctional Sciences I-Histolgy, Pathology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (B.M.); (S.-E.G.); (I.D.C.)
| | - Elena Porumb-Andrese
- Department of Dermatology, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
| | - Catalina Lunca
- Department of Microbiology, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (O.S.D.); (L.S.I.); (R.G.U.)
- Correspondence: (C.D.); (C.L.)
| | - Olivia Simona Dorneanu
- Department of Microbiology, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (O.S.D.); (L.S.I.); (R.G.U.)
| | - Luminita Smaranda Iancu
- Department of Microbiology, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (O.S.D.); (L.S.I.); (R.G.U.)
| | - Ramona Gabriela Ursu
- Department of Microbiology, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (O.S.D.); (L.S.I.); (R.G.U.)
| |
Collapse
|
5
|
Ursu RG, Damian C, Porumb-Andrese E, Ghetu N, Cobzaru RG, Lunca C, Ripa C, Costin D, Jelihovschi I, Petrariu FD, Iancu LS. Merkel Cell Polyoma Virus and Cutaneous Human Papillomavirus Types in Skin Cancers: Optimal Detection Assays, Pathogenic Mechanisms, and Therapeutic Vaccination. Pathogens 2022; 11:pathogens11040479. [PMID: 35456154 PMCID: PMC9032856 DOI: 10.3390/pathogens11040479] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 04/14/2022] [Accepted: 04/15/2022] [Indexed: 02/06/2023] Open
Abstract
Oncogenic viruses are recognized to be involved in some cancers, based on very well-established criteria of carcinogenicity. For cervical cancer and liver cancer, the responsible viruses are well-known (e.g., HPV, HBV); in the case of skin cancer, there are still many studies which are trying to identify the possible viral etiologic agents as principal co-factors in the oncogenic process. We analysed scientific literature published in the last 5 years regarding mechanisms of carcinogenicity, methods of detection, available targeted therapy, and vaccination for Merkel cell polyomavirus, and beta human papillomavirus types, in relation to skin cancer. This review is targeted at presenting the recent findings which support the involvement of these viruses in the development of some types of skin cancers. In order to optimize the management of skin cancer, a health condition of very high importance, it would be ideal that the screening of skin cancer for these two analysed viruses (MCPyV and beta HPV types) to be implemented in each region's/country's cancer centres' molecular detection diagnostic platforms, with multiplex viral capability, optimal sensitivity, and specificity; clinically validated, and if possible, at acceptable costs. For confirmatory diagnosis of skin cancer, another method should be used, with a different principle, such as immunohistochemistry, with specific antibodies for each virus.
Collapse
Affiliation(s)
- Ramona Gabriela Ursu
- Department of Preventive Medicine and Interdisciplinarity (IX)—Microbiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (R.G.U.); (C.D.); (R.G.C.); (C.L.); (C.R.); (D.C.); (I.J.); (F.D.P.); (L.S.I.)
| | - Costin Damian
- Department of Preventive Medicine and Interdisciplinarity (IX)—Microbiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (R.G.U.); (C.D.); (R.G.C.); (C.L.); (C.R.); (D.C.); (I.J.); (F.D.P.); (L.S.I.)
| | - Elena Porumb-Andrese
- Department of Medical Specialties (III)—Dermatology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
| | - Nicolae Ghetu
- Department of Plastic Surgery, Regional Oncology Institute, 700483 Iasi, Romania
- Correspondence:
| | - Roxana Gabriela Cobzaru
- Department of Preventive Medicine and Interdisciplinarity (IX)—Microbiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (R.G.U.); (C.D.); (R.G.C.); (C.L.); (C.R.); (D.C.); (I.J.); (F.D.P.); (L.S.I.)
| | - Catalina Lunca
- Department of Preventive Medicine and Interdisciplinarity (IX)—Microbiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (R.G.U.); (C.D.); (R.G.C.); (C.L.); (C.R.); (D.C.); (I.J.); (F.D.P.); (L.S.I.)
| | - Carmen Ripa
- Department of Preventive Medicine and Interdisciplinarity (IX)—Microbiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (R.G.U.); (C.D.); (R.G.C.); (C.L.); (C.R.); (D.C.); (I.J.); (F.D.P.); (L.S.I.)
| | - Diana Costin
- Department of Preventive Medicine and Interdisciplinarity (IX)—Microbiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (R.G.U.); (C.D.); (R.G.C.); (C.L.); (C.R.); (D.C.); (I.J.); (F.D.P.); (L.S.I.)
| | - Igor Jelihovschi
- Department of Preventive Medicine and Interdisciplinarity (IX)—Microbiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (R.G.U.); (C.D.); (R.G.C.); (C.L.); (C.R.); (D.C.); (I.J.); (F.D.P.); (L.S.I.)
| | - Florin Dumitru Petrariu
- Department of Preventive Medicine and Interdisciplinarity (IX)—Microbiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (R.G.U.); (C.D.); (R.G.C.); (C.L.); (C.R.); (D.C.); (I.J.); (F.D.P.); (L.S.I.)
| | - Luminita Smaranda Iancu
- Department of Preventive Medicine and Interdisciplinarity (IX)—Microbiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (R.G.U.); (C.D.); (R.G.C.); (C.L.); (C.R.); (D.C.); (I.J.); (F.D.P.); (L.S.I.)
| |
Collapse
|
6
|
Mints M, Landin D, Näsman A, Mirzaie L, Ursu RG, Zupancic M, Marklund L, Dalianis T, Munck-Wikland E, Ramqvist T. Tumour inflammation signature and expression of S100A12 and HLA class I improve survival in HPV-negative hypopharyngeal cancer. Sci Rep 2021; 11:1782. [PMID: 33469045 PMCID: PMC7815817 DOI: 10.1038/s41598-020-80226-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 12/17/2020] [Indexed: 01/08/2023] Open
Abstract
Hypopharyngeal squamous cell carcinoma (HPSCC) has a very poor prognosis. Local surgery may increase survival, but is often avoided due to significant post-op co-morbidities. Since prognostic markers are lacking, the aim was to find predictive biomarkers that identify patients whose response to oncological treatment is poor and who may benefit from primary surgery to increase survival. Pretreatment biopsies from 23 HPSCC patients, 3 human papillomavirus (HPV) positive and 20 HPV-negative, were analyzed for expression of 750 mRNAs using the Nanostring nCounter IO360 panel in relation to 3-year survival. Validation was performed through immunohistochemistry (IHC) for HLA class I and S100A12 in 74 HPV-negative HPSCC samples. Clustering identified a subset of HPV-negative HPSCC with favorable prognosis and a gene expression signature overexpressing calgranulins and immune genes, distinct from that of HPV-positive HPSCC. Enrichment analysis showed immune signaling, including the tumor inflammation signature, to be enriched in surviving patients. IHC validation confirmed high S100A12 and HLA class I expression to correlate with survival in HPV-negative HPSCC. This shows that immune activity is strongly related to survival in HPV-negative HPSCC. Enrichment of the tumor inflammation signature indicates a potential benefit of immunotherapy. Low expression of both HLA class I and S100A12 could be used to select patients for local surgery.
Collapse
Affiliation(s)
- Michael Mints
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.,Department of Surgical and Perioperative Sciences, Urology and Andrology, Umeå University, Umeå, Sweden
| | - David Landin
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,Department of Otorhinolaryngology, Head and Neck Surgery, Karolinska University Hospital, Stockholm, Sweden
| | - Anders Näsman
- Department of Oncology-Pathology, Karolinska Institutet, Bioclinicum J6:20, Karolinska University Hospital, 171 64, Solna, Sweden.,Departement of Clinical Pathology and Cytology, Cancer Center Karolinska, R8:02, Karolinska University Hospital, Stockholm, Sweden
| | - Leila Mirzaie
- Department of Oncology-Pathology, Karolinska Institutet, Bioclinicum J6:20, Karolinska University Hospital, 171 64, Solna, Sweden
| | - Ramona Gabriela Ursu
- Microbiology Department, University of Medicine sand Pharmacy, Grigore T Popa, Iasi, Romania
| | - Mark Zupancic
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,Department of Oncology-Pathology, Karolinska Institutet, Bioclinicum J6:20, Karolinska University Hospital, 171 64, Solna, Sweden
| | - Linda Marklund
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,Department of Otorhinolaryngology, Head and Neck Surgery, Karolinska University Hospital, Stockholm, Sweden
| | - Tina Dalianis
- Department of Oncology-Pathology, Karolinska Institutet, Bioclinicum J6:20, Karolinska University Hospital, 171 64, Solna, Sweden
| | - Eva Munck-Wikland
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,Department of Otorhinolaryngology, Head and Neck Surgery, Karolinska University Hospital, Stockholm, Sweden
| | - Torbjörn Ramqvist
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden. .,Department of Oncology-Pathology, Karolinska Institutet, Bioclinicum J6:20, Karolinska University Hospital, 171 64, Solna, Sweden.
| |
Collapse
|
7
|
Spiridon I, Anghel NC, Darie-Nita RN, Iwańczuk A, Ursu RG, Spiridon IA. New composites based on starch/Ecoflex®/biomass wastes: Mechanical, thermal, morphological and antimicrobial properties. Int J Biol Macromol 2019; 156:1435-1444. [PMID: 31770560 DOI: 10.1016/j.ijbiomac.2019.11.185] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 11/17/2019] [Accepted: 11/21/2019] [Indexed: 12/17/2022]
Abstract
Different biomass wastes were successfully blended with starch and Ecoflex® viz. poly(butylene adipate-co-terephthalate), without glycerol addition, to obtain biocomposite materials. The mechanical properties, as well as thermal and surface properties, of the developed composites were evaluated. It was found that the tensile strength and impact strength improved upon the addition of lignin, while the water uptake capacity decreased. The presence of 5% lignin determined an increase in tensile strength of 125.4% for materials comprising celery (CEL), 109.6% for materials comprising poplar seed hair fibers (PSH), 92.9% for materials comprising pomace (POM) and 127.7% for materials comprising Asclepias syriaca fibers (ASF), compared with a reference sample. The addition of lignin to all the formulations conferred good antimicrobial properties against different microorganisms, S. aureus and especially E. coli. The good mechanical properties, water resistance and antimicrobial activity against pathogens recommend these composites to be used in the manufacture of packaging materials.
Collapse
Affiliation(s)
- Iuliana Spiridon
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley no. 41, 700487 Iasi, Romania
| | - Narcis Catalin Anghel
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley no. 41, 700487 Iasi, Romania.
| | - Raluca Nicoleta Darie-Nita
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley no. 41, 700487 Iasi, Romania
| | - Andrzej Iwańczuk
- Faculty of Environmental Engineering, Wroclaw University of Technology, Wroclaw, Poland
| | | | | |
Collapse
|
8
|
Ursu RG, Iancu LS. Skin tumors and their viral origin. Arch Clin Cases 2018. [DOI: 10.22551/2018.20.0503.10138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
9
|
Haeggblom L, Ursu RG, Mirzaie L, Attoff T, Gahm C, Nordenvall LH, Näsman A. No evidence for human papillomavirus having a causal role in salivary gland tumors. Diagn Pathol 2018; 13:44. [PMID: 30021645 PMCID: PMC6052678 DOI: 10.1186/s13000-018-0721-0] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 06/14/2018] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Salivary gland malignancies are a very heterogeneous group of cancers, with histologically > 20 different subtypes, and prognosis varies greatly. Their etiology is unknown, however, a few small studies show presence of human papillomavirus (HPV) in some subtypes, although the evidence for HPV having a causal role is weak. The aim of this study was to investigate if HPV plays a causal role in the development of different parotid salivary gland tumor subtypes. METHODS DNA was extracted from 107 parotid salivary gland formalin fixed paraffin embedded tumors and 10 corresponding metastases, and tested for 27 different HPV types using a multiplex bead based assay. HPV DNA positive tumors were stained for p16INK4a overexpression by immunohistochemistry. RESULTS One of the 107 malignant parotid salivary gland tumors (0.93%) and its corresponding metastasis on the neck were positive for HPV16 DNA, and both also overexpressed p16INK4a. The HPV positive primary tumor was a squamous cell carcinoma; neither mucoepidermoid nor adenoid cystic tumors were found HPV positive. CONCLUSIONS In conclusion, HPV DNA analysis in a large number of malignant parotid salivary gland tumors, including 12 different subtypes, did not show any strong indications that tested HPV types have a causal role in the studied salivary gland tumor types.
Collapse
Affiliation(s)
- Linnea Haeggblom
- Department of Oncology-Pathology, Karolinska Institute, Cancer Center Karolinska, R8:01, Karolinska University Hospital, 171 76 Stockholm, Sweden
| | - Ramona Gabriela Ursu
- Department of Microbiology, University of Medicine and Pharmacy Grigore T. Popa Iasi, 700115 Iasi, Romania
| | - Leila Mirzaie
- Department of Oncology-Pathology, Karolinska Institute, Cancer Center Karolinska, R8:01, Karolinska University Hospital, 171 76 Stockholm, Sweden
| | - Tove Attoff
- Department of Oncology-Pathology, Karolinska Institute, Cancer Center Karolinska, R8:01, Karolinska University Hospital, 171 76 Stockholm, Sweden
| | - Caroline Gahm
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Karolinska University Hospital, 171 76 Stockholm, Sweden
- Department of Clinical Science, Intervention and Technology, Karolinska Institute, 171 76 Stockholm, Sweden
| | - Lalle Hammarstedt Nordenvall
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Karolinska University Hospital, 171 76 Stockholm, Sweden
- Department of Clinical Science, Intervention and Technology, Karolinska Institute, 171 76 Stockholm, Sweden
| | - Anders Näsman
- Department of Oncology-Pathology, Karolinska Institute, Cancer Center Karolinska, R8:01, Karolinska University Hospital, 171 76 Stockholm, Sweden
- Department of Clinical Pathology, Karolinska University Hospital, 171 76 Stockholm, Sweden
| |
Collapse
|
10
|
Ursu RG, Danciu M, Spiridon IA, Ridder R, Rehm S, Maffini F, McKay-Chopin S, Carreira C, Lucas E, Costan VV, Popescu E, Cobzeanu B, Ghetu N, Iancu LS, Tommasino M, Pawlita M, Holzinger D, Gheit T. Role of mucosal high-risk human papillomavirus types in head and neck cancers in Romania. PLoS One 2018; 13:e0199663. [PMID: 29940024 PMCID: PMC6016945 DOI: 10.1371/journal.pone.0199663] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 06/12/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Limited information is available about the involvement of human papillomavirus (HPV) in head and neck squamous cell carcinomas (HNSCCs) in Romanian patients. OBJECTIVE To evaluate the HPV-attributable fraction in HNSCCs collected in Northeastern Romania. MATERIALS AND METHODS In total, 189 formalin-fixed paraffin-embedded tissue samples (99 oral cavity tumors, 28 oropharynx, 48 pharynx, and 14 larynx/hypopharynx) were analyzed for HPV DNA and RNA using Luminex-based assays, and for overexpression of p16INK4a (p16) by immunohistochemistry. RESULTS Of the 189 cases, 23 (12.2%) were HPV DNA-positive, comprising half of the oropharyngeal cases (14/28, 50.0%) and 9/161 (5.6%) of the non-oropharyngeal cases. HPV16 was the most prevalent HPV type (20/23, 86.9%), followed by HPV18 (5/23, 21.7%) and HPV39 (1/23, 4.3%). Only two (2/189, 1.1%) HNSCC cases were HPV-driven, i.e. positive for both HPV DNA and RNA. CONCLUSION A very small subset of HNSCC cases within this cohort from Northeastern Romania appeared to be HPV-driven.
Collapse
Affiliation(s)
- Ramona Gabriela Ursu
- University of Medicine and Pharmacy “Grigore T. Popa”, Discipline of Microbiology, Iași, Romania
| | - Mihai Danciu
- University of Medicine and Pharmacy “Grigore T. Popa”, Department of Pathology, Iași, Romania
| | | | - Ruediger Ridder
- Roche MTM Laboratories, Mannheim, Germany
- Ventana Medical Systems, Inc., Tucson, Arizona, United States of America
| | - Susanne Rehm
- Roche MTM Laboratories, Mannheim, Germany
- Ventana Medical Systems, Inc., Tucson, Arizona, United States of America
| | - Fausto Maffini
- Department of Pathology, European Institute of Oncology, Milan, Italy
| | - Sandrine McKay-Chopin
- Infections and Cancer Biology Group, International Agency for Research on Cancer, Lyon, France
| | - Christine Carreira
- Infections and Cancer Biology Group, International Agency for Research on Cancer, Lyon, France
| | - Eric Lucas
- Infections and Cancer Biology Group, International Agency for Research on Cancer, Lyon, France
| | - Victor-Vlad Costan
- University of Medicine and Pharmacy “Grigore T. Popa”, Department of Oral and Maxillofacial Surgery, Iași, Romania
| | - Eugenia Popescu
- University of Medicine and Pharmacy “Grigore T. Popa”, Department of Oral and Maxillofacial Surgery, Iași, Romania
| | - Bogdan Cobzeanu
- University of Medicine and Pharmacy “Grigore T. Popa”, Department of Otorhinolaryngology, Iași, Romania
| | - Nicolae Ghetu
- University of Medicine and Pharmacy “Grigore T. Popa”, Department of Plastic surgery, Iași, Romania
| | - Luminita Smaranda Iancu
- University of Medicine and Pharmacy “Grigore T. Popa”, Discipline of Microbiology, Iași, Romania
| | - Massimo Tommasino
- Infections and Cancer Biology Group, International Agency for Research on Cancer, Lyon, France
| | - Michael Pawlita
- German Cancer Research Center (DKFZ), Division of Molecular Diagnostics of Oncogenic Infections, Heidelberg, Germany
| | - Dana Holzinger
- German Cancer Research Center (DKFZ), Division of Molecular Diagnostics of Oncogenic Infections, Heidelberg, Germany
| | - Tarik Gheit
- Infections and Cancer Biology Group, International Agency for Research on Cancer, Lyon, France
| |
Collapse
|
11
|
Ramqvist T, Ursu RG, Haeggblom L, Mirzaie L, Gahm C, Hammarstedt-Nordenvall L, Dalianis T, Näsman A. Human Polyomaviruses Are Not Frequently Present in Cancer of the Salivary Glands. Anticancer Res 2018; 38:2871-2874. [PMID: 29715110 DOI: 10.21873/anticanres.12532] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 02/26/2018] [Revised: 03/16/2018] [Accepted: 03/20/2018] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Malignant tumors of the salivary glands are rare and heterogeneous, with more than 20 subtypes, and classified mainly by histopathology. Their diagnosis is often challenging and their etiology unknown. Here, the possible association between human polyomaviruses (PyVs) and one or more salivary gland tumor subtypes was examined. MATERIALS AND METHODS Ninety-one primary tumors, including 12 subtypes and eight corresponding metastases, were analyzed for the presence of DNA of 10 different human PyV species by a bead-based multiplex assay using polymerase chain reaction and Luminex analyses. RESULTS Three samples, one adenocarcinoma (not otherwise specified), one adenoid cystic carcinoma, and one mucoepidermoid carcinoma were found to be positive. However, the amount of MCPyV DNA in these tumors was estimated to be less than one genome per tumor cell. CONCLUSION The analysis of DNA from 10 human PyVs in a large number of malignant salivary gland cancers did not implicate any of these human PyVs as an important causative agent in any of the 12 subtypes studied.
Collapse
Affiliation(s)
- Torbjörn Ramqvist
- Department of Oncology-Pathology, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Ramona Gabriela Ursu
- Discipline of Microbiology, Grigore T. Popa University of Medicine and Pharmacy, Iasi, Romania
| | - Linnea Haeggblom
- Department of Oncology-Pathology, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Leila Mirzaie
- Department of Oncology-Pathology, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Caroline Gahm
- Department of Clinical Science and Technology, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Lalle Hammarstedt-Nordenvall
- Department of Clinical Science and Technology, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Tina Dalianis
- Department of Oncology-Pathology, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Anders Näsman
- Department of Oncology-Pathology, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| |
Collapse
|
12
|
Salceanu SO, Constantin C, Cijevschi I, Ursu RG, Grigorovici M, Iancu LS. Human papillomavirus 52 positive squamous cell carcinoma of the conjunctiva. Indian J Ophthalmol 2016; 63:166-9. [PMID: 25827551 PMCID: PMC4399129 DOI: 10.4103/0301-4738.154406] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Human papillomavirus (HPV) infection is strongly associated with several human cancers; the most known genotypes involved being HPV 16 and HPV 18. We report the detection of HPV 52 in a sample taken from a 47-year-old patient with squamous cell carcinoma of the conjunctiva of the left eye. The method used for the detection of HPV was real time polymerase chain reaction. The evolution was favorable after surgical removal of the tumor and the patient was explained that long-term follow-up is essential to avoid recurrence.
Collapse
Affiliation(s)
| | | | | | - Ramona Gabriela Ursu
- Department of Microbiology, Grigore T. Popa University of Medicine and Pharmacy, Iasi, Romania
| | | | | |
Collapse
|
13
|
Nemescu D, Ursu RG, Nemescu ER, Negura L. Heterogeneous Distribution of Fetal Microchimerism in Local Breast Cancer Environment. PLoS One 2016; 11:e0147675. [PMID: 26808509 PMCID: PMC4726590 DOI: 10.1371/journal.pone.0147675] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 01/06/2016] [Indexed: 11/25/2022] Open
Abstract
Fetal cells enter maternal circulation during pregnancy and persist in the woman’s body for decades, achieving a form of physiological microchimerism. These cells were also evidenced in tumors. We investigated the frequency and concentration of fetal microchimerism in the local breast cancer environment. From 19 patients with confirmed breast neoplasia, after breast surgical resection, we collected three fresh specimens from the tumor core, breast tissue at tumor periphery, and adjacent normal breast tissue. The presence of male DNA was analyzed with a quantitative PCR assay for the sex determining region gene (SRY) gene. In the group of women who had given birth to at least one son, we detected fetal microchimerism in 100% of samples from tumors and their periphery and in 64% (9 of 14) of those from normal breast tissue. The tissues from the tumor and its periphery carry a significantly increased number of SRY copies compared to its neighboring common breast tissue (p = 0.005). The median of the normalized SRY-signal was about 77 (range, 3.2–21467) and 14-fold (range, 1.3–2690) greater in the tumor and respectively in the periphery than in the normal breast tissue. In addition, the relative expression of the SRY gene had a median 5.5 times larger in the tumor than in its periphery (range, 1.1–389.4). We found a heterogeneous distribution of fetal microchimerism in breast cancer environment. In women with sons, breast neoplasia harbors male cells at significantly higher levels than in peripheral and normal breast tissue.
Collapse
Affiliation(s)
- Dragos Nemescu
- Department of Obstetrics and Gynecology, University of Medicine and Pharmacy "Gr.T.Popa", Iasi, Romania
- “Cuza Voda” Obstetrics and Gynecology Hospital, Iasi, Romania
| | - Ramona Gabriela Ursu
- Department of Microbiology, University of Medicine and Pharmacy "Gr.T.Popa", Iasi, Romania
- * E-mail:
| | - Elena Roxana Nemescu
- Department of Infectious Diseases, University of Medicine and Pharmacy "Gr.T.Popa", Iasi, Romania
| | - Lucian Negura
- Department of Immunology and Oncogenetics, University of Medicine and Pharmacy "Gr.T.Popa", Iasi, Romania
| |
Collapse
|
14
|
Luca AS, Ursu RG, Teuşan T, Luca CM, Pleşca CE, Iancu LS. THE NEED FOR HBV GENOTYPING: A COST-EFFICIENT APPROACH. Rev Med Chir Soc Med Nat Iasi 2015; 119:982-987. [PMID: 26793838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The outcome of chronic HBV infection is variable; approximately one half of individuals transition to an inactive carrier state, 30% progress to cirrhosis, and the remainder to chronic hepatitis. Ten different HBV genotypes and many subtypes have been identified with distinct geographical distributions. Over the years, a lot of studies presented the efficiency of different genotyping methods; for this reason we aimed to present a cost efficient genotyping diagnosis algorithm of CHB infected patients, especially useful to identify those at risk of disease progression and determine optimal anti-viral therapy as useful instrument for physicians.
Collapse
|
15
|
Spiridon I, Ursu RG, Spiridon IAC. New Polylactic Acid Composites for Packaging Applications: Mechanical Properties, Thermal Behavior, and Antimicrobial Activity. International Journal of Polymer Analysis and Characterization 2015. [DOI: 10.1080/1023666x.2015.1081131] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
16
|
Ursu RG, Onofriescu M, Luca A, Prisecariu LJ, Sălceanu SO, Nemescu D, Iancu LS. The Need for Cervical Cancer Control in HIV-Positive and HIV-Negative Women from Romania by Primary Prevention and by Early Detection Using Clinically Validated HPV/DNA Tests. PLoS One 2015; 10:e0132271. [PMID: 26186361 PMCID: PMC4506070 DOI: 10.1371/journal.pone.0132271] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Accepted: 06/11/2015] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND In Romania, a country with no organized national surveillance program regarding cervical cancer, the early diagnosis of HPV (Human Papilloma Virus) infections is a major requirement, especially in HIV-infected women. The objective of this study was to determine the HPV prevalence and type distribution in young HIV-positive women and to assess the difference in the risk factors for developing cervical cancer compared to those of HIV-negative women. METHOD We conducted one cross-sectional cohort study from June 2013-September 2014, including 1,032 women: 992 HIV- women who were 36.5 years old (limits: 17 ÷ 84) and 40 HIV + women who were 22.9 years old (limits: 17 ÷ 30) with iatrogenic HIV infected. We detected HPV types with the Linear Array HPV Genotyping test (Roche, Romania). RESULTS DNA/HPV was detected in 18/40 (45%) of the HIV+ patients and in 350/992 (35.2%) of the HIV- patients (OR = 1.5, 95%CI 0.76÷2.96). After age adjustment, the overall HPV prevalence was 51.6% in HIV+ versus 63.2% in HIV- women aged under 25, and 22.2% in HPV+ versus 47.2% in HIV- women aged 25-34. We detect HIV being a risk factor for acquiring multiple HPV type infections (OR = 2.30, 95% CI 0.88÷5.97). The eight most common HPV types (high-risk, and low-risk) for women below age 30, HIV+ / - were: HPV 16, 18, 31, 51, 58, 68, and 6 and 82 respectively. To assess the risk factors of HIV-positive women for acquiring HPV infection, we analyzed the CD4/μL, ARN/HIV copies/μL, the age group, the number of sexual partners, smoking, and the type of HPV infection (single versus multiple infections). We found that the number of sexual partners and smoking are statistically significant risk factors. CONCLUSION Even though there are no significant differences regarding the prevalence of HPV infection in HIV + versus HIV - patients, multiple infections were more frequent in the first group. In our study group young HIV-infected patients under HAART therapy, high number of sexual partners (more than 3) and smoking were detected to be risk factors. Future organized screening for HPV infection using sensitive and specific methods are necessary at the national level in Romania.
Collapse
Affiliation(s)
- Ramona Gabriela Ursu
- Department of Microbiology, University of Medicine and Pharmacy “Gr. T. Popa”, Iaşi, Romania
- * E-mail:
| | - Mircea Onofriescu
- Department of Obstetrics and Gynecology, University of Medicine and Pharmacy “Gr.T.Popa”, Iasi, Romania, “Cuza Voda” Obstetrics and Gynecology Hospital, Iasi, Romania
| | - Alexandru Luca
- “Cuza Voda” Obstetrics and Gynecology Hospital, Iasi, Romania
| | - Liviu Jany Prisecariu
- Infectious Disease “St. Parascheva” Clinical University Hospital Iaşi, Iaşi, Romania
| | | | - Dragoş Nemescu
- Department of Obstetrics and Gynecology, University of Medicine and Pharmacy “Gr.T.Popa”, Iasi, Romania, “Cuza Voda” Obstetrics and Gynecology Hospital, Iasi, Romania
| | - Luminiţa Smaranda Iancu
- Department of Microbiology, University of Medicine and Pharmacy “Gr. T. Popa”, Iaşi, Romania
| |
Collapse
|
17
|
Nemescu RE, Ursu RG, Dorobăț CM, Iancu LS. The efficiency of sodC gene / N. meningitidis detection in comparison with the classical methods for the diagnosis of meningococcal infection / Evaluarea eficienţei Real Time PCR TaqMan utilizând gena sodC / N. meningitidis în comparaţie cu metodele clasice utilizate în diagnosticul infecţiei meningococice. REV ROMANA MED LAB 2015. [DOI: 10.1515/rrlm-2015-0008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractMeningococcal infection requires a fast and accurate diagnostic method in order to correctly initiate the antibiotic therapy. The aim of our study was to assess the efficiency of Real Time PCR -Taq Man using sod C gene / N. meningitidis in comparison with the classical methods for the diagnosis of meningococcal infection - direct microscopy, cultivation, latex agglutination and blood culture. We have detected 24/44 (54.54%) patients with meningococcal infection. In both cases of patients with / without previous antibiotic therapy before admission, the AUC (area under curve) had the highest values for RT PCR in CSF and blood analysis. This sod C RT-PCR assay is a highly sensitive and specific method for detection of Neisseria meningitis and it would be useful to include this method like a multiplex in routine testing of patients with clinical meningococcal infection for other etiological agents also.
Collapse
|
18
|
Tucaliuc D, Alexa O, Tuchiluş CG, Ursu RG, Tucaliuc ES, Iancu LS. Analysis of antibiotic resistance pattern of S. aureus strains isolated from the Orthopedics-Traumatology Section of "Sf. Spiridon" Clinical Emergency Hospital, Iaşi. Rev Med Chir Soc Med Nat Iasi 2014; 118:780-787. [PMID: 25341301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
AIM The retrospective analysis of antibiotic sensibility of S. aureus strains isolated from infected patients from the Orthopedics-Traumatology Clinic of "Sf. Spiridon" Clinical Emergency Hospital, Iaşi during January 2003-December 2013, in view of determining the evolution trend of the resistance phenomenon and of pinpointing the most useful treatment for these strains. MATERIAL AND METHOD The antibiotic sensitivity test was carried out using two methods: diffusimetric-Kirby-Bauer and the MIC determination by E-test (for the strains isolated in 2013); the interpretation of the sensitivity was made in a standardized manner, in compliance with the CLSI (Clinical and Laboratory Standards Institute) standard for antibiotics testing in force. RESULTS The sensitivity testing for beta-lactams proved that during the 11 years of the study, the average value of the frequency of resistant strains was of 41.59% +/- 8.68. The highest frequency of MRSA (Methicillin Restant S. aureus) strains was noticed in 2012 (58.6%), followed by 2004 (50.7%). Even if in 2013 it dropped to 38.9%, the trend calculated for 2003-2013 is slightly rising (y = 0.0073x + 0.372). Out of the total of 495 S. aureus strains that were isolated, 164 (33.13%) were completely sensitive to the tested antibiotics and 26 (5.25%) were resistant only to beta-lactams. The other MRSA strains associated multiple resistance and MIC for vancomycin varied between 0.5-2 mg/ml. Two strains whose MIC was of 0.5 mg/ml were sensitive to most classes of tested antibiotics, including beta-lactams, except for macrolides (erythromycin), and the strain whose MIC was of 2 mg/ml, was resistant to all classes of tested antibiotics, except for glycopeptides and oxazolidiones. The other tested strains had a MIC for vancomycin equal to 1 mg/ml. CONCLUSIONS Due to the fact that there are infections with SAMR strains in a rather worrying percentage (53.9%) that are resistant to the other classes of antibiotics, the only therapeutic solution being the vancomycin treatment, its use should be limited solely to those cases when it is really necessary. Fortunately, no vancomycin resistant MRSA strains have been identified in our country, but this phenomenon should be kept under close surveillance.
Collapse
|
19
|
Luca AS, Dorobăţ C, Ursu RG, Luca MC, Vâţă A, Iancu LS. Epidemiological and laboratory features of chronic hepatitis B cases in the interval 2010-2013. Rev Med Chir Soc Med Nat Iasi 2014; 118:479-484. [PMID: 25076718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
UNLABELLED HBV virus infection is an important public health problem because of its huge transmission potential, and severe evolution to cirrhosis or liver cancer. AIM Analysis of the epidemiological and laboratory features of chronic hepatitis B virus infection. MATERIAL AND METHODS The patients with chronic hepatitis B admitted to the "Sf. Parascheva" University Hospital for Infectious Diseases in the interval: January 1st, 2010 - December 31st were analyzed. RESULTS Patients age was 18 to 66 years with a prevalence of middle-aged males. Most patients came from urban areas. Alanine aminotransferase (ALAT) levels were elevated, without significant differences between HBeAg-positive and HBeAg-negative patients, the elevated ALAT levels being associated with the increased prevalence of fibrosis. HBeAg-positive patients had viral loads above the threshold of 2,000/l in 34 cases (89.5%), and below 2,000 IU/l in only 10.5% of cases, and the majority (88%) of HBeAg-negative patients presented high viral load levels. The prevalence of stage F2-F4 liver fibrosis was 63.4% in the HBeAg-negative patients with viremia > 25,000 IU/l compared to 55.2% in the HBeAg-positive patients. The correlation between the level of viral load and fibrosis shows that there are significant differences between viremia and the status of HBeAg-positive or negative patients. Increased viral load was correlated with increasing prevalence of fibrosis, significant in HBeAg-negative patients, and the increasing fibrosis prevalence was correlated with low viral load. CONCLUSIONS The correlation between viral load and fibrosis shows that there are significant differences between viral load and the status of HBAg-positive or negative patients.
Collapse
|
20
|
Nemescu RE, Iancu LS, Dorneanu OS, Ursu RG, Dorobăţ CM. Influence of antibiotic therapy prior to admission on the efficacy of classical methods for the diagnosis of meningococcal disease. Rev Med Chir Soc Med Nat Iasi 2014; 118:497-502. [PMID: 25076721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM To assess the influence of preadmission antibiotic therapy on the results of the classical methods for bacteriological confirmation of meningococcal disease (MD). MATERIAL AND METHODS Retrospective study of the MD cases diagnosed in the "St. Parascheva" Universitary Clinical Infectious Diseases Iaşi between 1994 and 2011. RESULTS The etiological diagnosis was made by identifying the meningococcus in the CSF (cerebrospinal fluid) in 71.9% of the 323 patients and by blood culture in 8%. Preadmission antibiotic therapy received 39% of the patients, thus the sensitivity of test was significantly reduced: direct examination from 64.6% to 43.2% (p < 0.001), cultures from 55.9% to 27.2% (p < 0.001), and latex-agglutination from 84.6% to 58.8% (p = 0.003). The rate of positive CSF decreased from 82.1% to 56% (p < 0.001). Preadmission antibiotic therapy significantly increased the ratio of cases in which meningococcus was not detected in CSF by any of the classical methods (44% compared to 17.9% in the cases without prior treatment). The proportion of cases in which meningococcal isolation was done by two methods decreased from 38.5% to 19.2%, and of those by all three methods from 16.9% to 5.6% (p < 0.001). Preadmission antibiotic therapy also decreased the rate of positive blood cultures from 14.7% to 3.5% (Fisher's exact test, p = 0.009). CONCLUSIONS Antibiotic treatment prior to admission significantly decreases the percentage of patients with MD in which meningococcal isolation can be done; this requires the use of a more sensitive diagnosis method (ex. qPCR).
Collapse
|
21
|
Tucaliuc D, Alexa O, Tuchiluş CG, Ursu RG, Tucaliuc ES, Iancu LS. Retrospective study on the etiological spectrum and antibiotic resistance in infections associated with osteosynthesis materials. Rev Med Chir Soc Med Nat Iasi 2014; 118:147-153. [PMID: 24741791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM To determine the prevalence of infections according to their etiologic spectrum and antibiotic sensitivity in patients with or without implants and endoprostheses. MATERIAL AND METHODS This retrospective study was conducted based on a customized study protocol on 773 cases admitted to the Clinic of Orthopedics - Traumatology of the Iaşi "Sf. Spiridon" Emergency Hospital in the interval January 1, 2003 - December 31, 2011 for postoperative infectious complication. RESULTS S. aureus was more frequently found in the patients without implant (58.2%) and in those with subcutaneous implant (45.5%); the lowest frequency was noticed in the patients with endoprosthesis (27.1%), the frequency distributions showing marked statistically significant differences (p = 0.001). P. aeruginosa was more frequently detected in the patient group with endoprosthesis (30.2%), while in the other groups it was found in approximately 7% (p = 0.001). The presence of Acinetobacter spp. was significantly higher in patients with deep implant (12.9%), with the lowest frequency noticed in the patients without implant (4.5%) (p = 0.029). Of the total isolated and identified types, 59.6% were non-multidrug-resistant (non-MDR), the remaining 40.4% being MDR types. CONCLUSIONS S. aureus was the most frequent etiological agent in patients with or without cutaneous implant (45.5 and 58.2%, respectively), and P. aeruginosa (30.2%) in the endoprosthesized patients. Implementation of a preoperative screening protocol for the identification of healthy S. aureus carriers (Methicillin-sensitive S. aureus - MSSA/Methicillin-resistant S. aureus - MRSA) and subsequent decolonization would be an efficient way of reducing the incidence of infections caused by this bacterium.
Collapse
|
22
|
Iancu LS, Ursu RG. The rationale for implementation of HPV testing in routine cervical screening in Romania. Rev Med Chir Soc Med Nat Iasi 2013; 117:293-296. [PMID: 24340506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
|
23
|
Nemescu RE, Ursu RG, Dorobăţ CM, Iancu LS. Diagnosis of meningococcal infection by QPCR: detection and quantification of DNA / Neisseria meningitidis. Rev Med Chir Soc Med Nat Iasi 2012; 116:888-892. [PMID: 23272547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We present the case of a patient with clinical signs of meningococcemia and negative bacterial culture. Microbiological diagnosis was possible only by testing with real time PCR technique the cerebrospinal fluid and blood samples. Both pathologic samples were positive for Neisseria meningitidis by this rapid and sensitive diagnostic method.
Collapse
Affiliation(s)
- Roxana Elena Nemescu
- Discipline of Infectious Diseases, University of Medicine and Pharmacy, Grigore T. Popa-Iaşi School of Medicine
| | | | | | | |
Collapse
|
24
|
Ursu RG, Onofriescu M, Nemescu D, Iancu LS. HPV prevalence and type distribution in women with or without cervical lesions in the Northeast region of Romania. Virol J 2011; 8:558. [PMID: 22192090 PMCID: PMC3257212 DOI: 10.1186/1743-422x-8-558] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2011] [Accepted: 12/22/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cervical cancer is a major public health problem worldwide. While Romania has the highest incidence of cervical cancer in Europe, the prevalence of HPV has not been evaluated. We report the first data on HPV prevalence and type distribution in Northeast Romania. METHODS HPV prevalence and genotype distribution was investigated in 514 consecutively women with or without cervical lesions in Northeast Romania. Genotyping was performed with Linear Array Genotyping/Roche kit. RESULTS In our study group, 192/514 (37.4%) patients were positive for HPV (infected with single and with multiple HPV types). Most frequent types were: 16 (10.5%), 53 (5.44%), 51 (5.05%), 52 (4.08%) 18 (2.91%) and 31 (2.73%). CONCLUSIONS Infection with high risk types of HPV is common in Northeast Romania. Enhanced and systematic screening for cervical cancer is needed. Our results call for the implementation of a National HPV vaccine program in Romania.
Collapse
Affiliation(s)
- Ramona Gabriela Ursu
- Microbiology Department, "Grigore T. Popa" University of Medicine and Pharmacy, Universitatii Str. NO 15, Iaşi 700115, Romania
| | - Mircea Onofriescu
- Gynecology Department, "Grigore T. Popa" University of Medicine and Pharmacy, Iaşi, Universitatii Str. NO 15, Iaşi 700115, Romania
| | - Dragoş Nemescu
- Gynecology Department, "Grigore T. Popa" University of Medicine and Pharmacy, Iaşi, Universitatii Str. NO 15, Iaşi 700115, Romania
| | - Luminiţa-Smaranda Iancu
- Microbiology Department, "Grigore T. Popa" University of Medicine and Pharmacy, Universitatii Str. NO 15, Iaşi 700115, Romania
| |
Collapse
|
25
|
Ursu RG, Onofriescu M, Nemescu D, Iancu LS. [Enhanced molecular techniques for the diagnosis of human papillomavirus infections]. Rev Med Chir Soc Med Nat Iasi 2009; 113:1205-1210. [PMID: 20191900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVES optimisation of Real Time PCR technique for quantifying oncogenic types 16 and 18 of Human Papilloma Viruses, genotyped through classic PCR, followed by hybridisation. MATERIAL AND METHOD DNA/ HPV was purified with High Pure PCR Template Preparation kit (ROCHE DIAGNOSTICS), genotyping was performed with Linear Array HPV Genotyping (ROCHE DIAGNOSTICS) and PCR reaction was realized with ABI 9700 Gold Plate System. Absolute quantification of HPV 16 and 18 was performed with Path-HPV16/18 Real-time PCR detection kit for Human Papillomavirus, 2 x Precision Mastermix kits (PrimerDesign), and the instrument used was MX3000P STRATAGENE. RESULTS I. HPV genotyping was optimised through testing of 12 cervical samples, collected from patients who have signed the informed consent approved by the local Bioethical Committee. Among the tested samples, 5 were negative for any HPV type, 3 patients had unique infections with oncogenic HPV type, and 2 patients had multiple infections, with oncogenic and non-oncogenic HPV types. Negative and positive controls were validated, identical as the internal control - beta globin gene. II. Absolute quantification for HPV 16 and 18 were performed on two samples tested by the previous method. The number of viral copies was determined using the standard curves procedure, whose parameters values were between the accepted limits. CONCLUSIONS We fulfilled the quality criteria for both techniques: genotyping assay and viral load quantification by Real Time PCR. This allows us to start the study for monitoring persistent infections with HPV 16 and HPV 18.
Collapse
Affiliation(s)
- Ramona Gabriela Ursu
- Facultatea de Medicină, Disciplina de Microbiologie, Universitatea de Medicină si Farmacie "Gr.T. Popa" Iaşi
| | | | | | | |
Collapse
|