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Shenoy A, Belugali Nataraj N, Perry G, Loayza Puch F, Nagel R, Marin I, Balint N, Bossel N, Pavlovsky A, Barshack I, Kaufman B, Agami R, Yarden Y, Dadiani M, Geiger T. Proteomic patterns associated with response to breast cancer neoadjuvant treatment. Mol Syst Biol 2020; 16:e9443. [PMID: 32960509 PMCID: PMC7507992 DOI: 10.15252/msb.20209443] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 08/24/2020] [Accepted: 08/31/2020] [Indexed: 11/30/2022] Open
Abstract
Tumor relapse as a consequence of chemotherapy resistance is a major clinical challenge in advanced stage breast tumors. To identify processes associated with poor clinical outcome, we took a mass spectrometry-based proteomic approach and analyzed a breast cancer cohort of 113 formalin-fixed paraffin-embedded samples. Proteomic profiling of matched tumors before and after chemotherapy, and tumor-adjacent normal tissue, all from the same patients, allowed us to define eight patterns of protein level changes, two of which correlate to better chemotherapy response. Supervised analysis identified two proteins of proline biosynthesis pathway, PYCR1 and ALDH18A1, that were significantly associated with resistance to treatment based on pattern dominance. Weighted gene correlation network analysis of post-treatment samples revealed that these proteins are associated with tumor relapse and affect patient survival. Functional analysis showed that knockdown of PYCR1 reduced invasion and migration capabilities of breast cancer cell lines. PYCR1 knockout significantly reduced tumor burden and increased drug sensitivity of orthotopically injected ER-positive tumor in vivo, thus emphasizing the role of PYCR1 in resistance to chemotherapy.
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Affiliation(s)
- Anjana Shenoy
- Sackler Faculty of MedicineTel Aviv UniversityTel AvivIsrael
| | | | - Gili Perry
- Sheba Medical CenterCancer Research CenterTel‐HashomerIsrael
| | | | - Remco Nagel
- Netherlands Cancer InstituteAmsterdamNetherlands
| | - Irina Marin
- Sheba Medical CenterPathology InstituteTel‐HashomerIsrael
| | - Nora Balint
- Sheba Medical CenterPathology InstituteTel‐HashomerIsrael
| | - Noa Bossel
- Weizmann Institute of ScienceRehovotIsrael
| | - Anya Pavlovsky
- Sheba Medical CenterPathology InstituteTel‐HashomerIsrael
| | - Iris Barshack
- Sheba Medical CenterPathology InstituteTel‐HashomerIsrael
| | - Bella Kaufman
- Sheba Medical CenterOncology InstituteTel‐HashomerIsrael
| | - Reuven Agami
- Netherlands Cancer InstituteAmsterdamNetherlands
| | | | - Maya Dadiani
- Sheba Medical CenterCancer Research CenterTel‐HashomerIsrael
| | - Tamar Geiger
- Sackler Faculty of MedicineTel Aviv UniversityTel AvivIsrael
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Dadiani M, Necula D, Kahana-Edwin S, Oren N, Baram T, Marin I, Morzaev-Sulzbach D, Pavlovski A, Balint-Lahat N, Anafi L, Wiemann S, Korner C, Gal-Yam EN, Avivi C, Kaufman B, Barshack I, Ben-Baruch A. TNFR2+ TILs are significantly associated with improved survival in triple-negative breast cancer patients. Cancer Immunol Immunother 2020; 69:1315-1326. [PMID: 32198536 DOI: 10.1007/s00262-020-02549-0] [Citation(s) in RCA: 8] [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: 12/12/2019] [Accepted: 03/10/2020] [Indexed: 12/12/2022]
Abstract
In view of the relatively limited efficacy of immunotherapies targeting the PD-1-PD-L1 axis in triple-negative breast cancer (TNBC) and of published reports on tumor-promoting roles of TNFR2+ tumor-infiltrating lymphocytes (TNFR2+ TILs), we determined the incidence of TNFR2+ TILs in TNBC patient tumors, their association with disease outcome and relations with PD-1+ TILs. Using a cohort of treatment-naïve TNBC patients with long follow-up (n = 70), we determined the presence of TNFR2+ TILs and PD-1+ TILs by immunohistochemistry. TILs (≥ 1% of cellular mass) and TNFR2+ TILs (≥ 1% of total TILs) were detected in 96% and 74% of tumors, respectively. The presence of TILs at > 5% of tumor cell mass ("Positive TILs"), as well as of positive TNFR2+ TILs (> 5%), was independently associated with good prognosis, and combination of both parameters demonstrated superior outcome relative to their lower levels. PD1+ TILs (> 5/hot spot) were detected in 63% of patients. High levels of PD-1+ TILs (> 20/hot spot) showed an unfavorable disease outcome, and in their presence, the favorable outcome of positive TNFR2+ TILs was ablated. Thus, TNFR2+ TILs are strongly connected to improved prognosis in TNBC; these findings suggest that TNFR2+ TILs have favorable effects in TNBC patients, unlike the tumor-promoting roles attributed to them in other cancer systems. Overall, our observations propose that the TNFR2+ TIL subset should not be targeted in the course of TNBC therapy; rather, its beneficial impacts may become into power when anti-PD-1 regimens-that may potentiate immune activities-are administered to TNBC patients.
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Affiliation(s)
- Maya Dadiani
- Cancer Research Center, Sheba Medical Center, Ramat Gan, Israel
| | - Daniela Necula
- Pathology Institute, Sheba Medical Center, Ramat Gan, Israel
| | | | - Nino Oren
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, 6997801, Tel Aviv, Israel
| | - Tamir Baram
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, 6997801, Tel Aviv, Israel
| | - Irina Marin
- Pathology Institute, Sheba Medical Center, Ramat Gan, Israel
| | | | - Anya Pavlovski
- Pathology Institute, Sheba Medical Center, Ramat Gan, Israel
| | | | - Liat Anafi
- Pathology Institute, Sheba Medical Center, Ramat Gan, Israel
| | - Stefan Wiemann
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Cindy Korner
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | | | - Camila Avivi
- Pathology Institute, Sheba Medical Center, Ramat Gan, Israel
| | - Bella Kaufman
- Breast Oncology Institute, Sheba Medical Center, Ramat Gan, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Iris Barshack
- Pathology Institute, Sheba Medical Center, Ramat Gan, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Adit Ben-Baruch
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, 6997801, Tel Aviv, Israel.
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Marin I, Ofek E, Bar J, Prisant N, Perelman M, Avivi C, Lavy-Shahaf G, Onn A, Katz R, Barshack I. MiR-21, EGFR and PTEN in non-small cell lung cancer: an in situ hybridisation and immunohistochemistry study. J Clin Pathol 2020; 73:636-641. [PMID: 32060074 DOI: 10.1136/jclinpath-2019-206420] [Citation(s) in RCA: 8] [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: 12/29/2019] [Revised: 01/20/2020] [Accepted: 01/23/2020] [Indexed: 12/24/2022]
Abstract
AIMS To analyse microRNA (miR)-21 distribution and expression at the cellular level in non-small cell lung cancer (NSCLC). MiR-21 is an oncogenic microRNA overexpressed in NSCLC. In previous studies, overexpression of miR-21 was evaluated from the tumour bulk by quantitative reverse transcription PCR with results expressed on average across the entire cell population. METHODS We used in situ hybridisation and immunohistochemistry to assess the correlation between miR-21 levels and the expression of markers that may be possible targets (epidermal growth factor reaction) or may be involved in its upregulation (phosphatase and tensin homolog (PTEN), p53). The Pearson's χ2 tests was used to assess correlation with clinicopathological data and with miR-21 expression both in tumour and tumour stroma. RESULTS Cytoplasmic staining and expression of Mir-21 were detected in the tumours and in associated stromal cells. Expression was highest in the stroma immediately surrounding the tumour cells and decreased as the distance from the tumour increased. No expression of miR-21 was found in normal lung parenchyma and a significant association was found between tumour localised miR-21 and PTEN. CONCLUSIONS Presence of miR-21 in both cell tumour and stromal compartments of NSCLC and the relationship with PTEN confirms miR-21 as a microenvironment signalling molecule, possibly inducing epithelial mesenchymal transition and invasion by targeting PTEN in the stromal compartment possibly through exosomal transport. In situ immunohistochemical studies such as ours may help shed light on the complex interactions between miRNAs and its role in NSCLC biology.
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Affiliation(s)
- Irina Marin
- Pathology Department, Tel HaShomer Hospital, Tel Hashomer, Israel
| | - Efrat Ofek
- Pathology Department, Tel HaShomer Hospital, Tel Hashomer, Israel
| | - Jair Bar
- Thoracic Oncology Unit, Institute of Oncology, Tel HaShomer Hospital, Tel Hashomer, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
| | - Nadia Prisant
- Pathology Department, Tel HaShomer Hospital, Tel Hashomer, Israel
| | - Marina Perelman
- Pathology Department, Tel HaShomer Hospital, Tel Hashomer, Israel
| | - Camila Avivi
- Pathology Department, Tel HaShomer Hospital, Tel Hashomer, Israel
| | - Gitit Lavy-Shahaf
- Israel Center for Disease Control, Ministry of Health, Tel HaShomer Hospital, Tel Hashomer, Israel
| | - Amir Onn
- Thoracic Oncology Unit, Institute of Oncology, Tel HaShomer Hospital, Tel Hashomer, Israel
| | - Ruth Katz
- Division of Pathology and Laboratory Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Iris Barshack
- Pathology Department, Tel HaShomer Hospital, Tel Hashomer, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
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Abstract
BACKGROUND To cope with the daily increments of gastric gas, the stomach can propel gas to the small bowel or trigger the belching reflex. Our aim was to evaluate transit of free gastric gas in healthy humans, and its relationship with abdominal symptoms. METHODS In 24 healthy volunteers a gas mixture was infused into the stomach at 0 mL/min (sham infusion), 25 mL/min, 50 mL/min, and 100 mL/min (n = 6 each) up to 1500 mL. Belching, rectal gas evacuation, and abdominal perception were continuously recorded for 90 min. KEY RESULTS Sham infusion was associated to low rectal gas evacuation (187 ± 94 mL after 90 min), and belching (0 ± 0). In contrast, gastric gas infusion increased rectal gas evacuation (1198 ± 176 mL; P = .025) and belching (4 ± 1 belches; P = .0520) without differences between the infusion rates tested. Overall, there was a negative correlation between rectal gas evacuation and belching (r = -.72; P < .0001): 6 subjects had frequent belching (14 ± 2 belches) and minor rectal gas evacuation (330 ± 112 mL), whereas 12 subjects had virtually no belches (1 ± 1 belches) and greater rectal gas evacuation (1630 ± 147 mL; P < .001 vs belchers for both). Gas infusion induced lower abdominal symptoms in belchers (score increment 0.7 ± 0.3) than in rectal gas evacuators (score increment 1.7 ± 0.5; P = .033). CONCLUSIONS AND INFERENCES An excellent balance between belching and distal gastric empting allows the stomach to adapt to great variations in gas intake. In general, most gastric gas is emptied to distal intestinal segments, but in some circumstances gastric gas induces belching, a mechanism that may improve gas tolerance.
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Affiliation(s)
- N Caballero
- Motility and Functional Gut Disorders Unit, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), University Hospital Germans Trias i Pujol, Badalona, Barcelona, Spain.,Department of Medicine, Autonomous University of Barcelona, Barcelona, Spain
| | - I Marin
- Motility and Functional Gut Disorders Unit, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), University Hospital Germans Trias i Pujol, Badalona, Barcelona, Spain.,Department of Medicine, Autonomous University of Barcelona, Barcelona, Spain
| | - J Serra
- Motility and Functional Gut Disorders Unit, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), University Hospital Germans Trias i Pujol, Badalona, Barcelona, Spain.,Department of Medicine, Autonomous University of Barcelona, Barcelona, Spain
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Zundelevich A, Dadiani M, Kahana-Edwin S, Gadot M, Sela T, Marin I, Necula D, Pavlovsky A, Barshack I, Kaufman B, Gal-Yam EN. Abstract 657: ESR1 mutations abundance in local recurrence of endocrine-treated breast cancer. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Emerging mutations in the ESR1 gene that encodes for estrogen receptor (ER) have been recently associated with resistance to endocrine therapy in ER positive metastatic breast cancer patients. These mutations promote the active conformation of the receptor, conferring resistance to endocrine therapy, and were associated with shorter progression free survival. ESR1 mutations were found to rarely exist in primary tumors (~1%) but are relatively common in metastatic, endocrine therapy-resistant lesions, with an estimated prevalence of ~10-50%. Nevertheless, not much is known about the incidence of these mutations in local recurrence (breast and adjacent lymph nodes) and its clinical significance. The objective of this study is to determine the prevalence of ESR1 mutations in local recurrence of endocrine-treated breast cancer patients. To this end, we collected a cohort of breast cancer patients that had at least one local or loco-regional recurrence during or after adjuvant endocrine treatment for primary breast cancer. We analyzed the 5 most common ESR1 hotspot mutations (D538G, L536R, Y537S/N/C) using droplet digital PCR technology in 44 samples from 34 patients (some of the patients had more than one recurrence). ESR1 mutations were identified in 10/34 (29%) patients. Specifically, mutations were distributed between D538G (5/34), Y537S+ D538G (4/34) and L536R (1/34). ESR1 Mutations developed after or on Tamoxifen only treatment in 50% of the positive patients (5/10 patients) and after or on Tamoxifen + Aromatase Inhibitor (AI) treatment in the other 50% (5/10 patients). Notably, one patient developed ESR1 mutation while on neoadjuvant endocrine therapy. ESR1 mutations persisted in local recurrence samples of mutation positive patients that had more than one local recurrence and the chance of detecting a mutation in patients that had more than one recurrence was higher than in those with a single recurrence. This study demonstrates that ESR1 mutations are common in local recurrence of hormone receptor positive breast cancer. Further studies to establish the clinical significance of these mutations and their impact on survival are underway. Since local recurrences are amenable to curative therapy, the identified unexpected high prevalence of ESR1 mutations at this stage of the disease may have important consequences for choosing the optimal adjuvant treatment option for these patients.
Citation Format: Adi Zundelevich, Maya Dadiani, Smadar Kahana-Edwin, Moran Gadot, Tal Sela, Irina Marin, Daniela Necula, Anya Pavlovsky, Iris Barshack, Bella Kaufman, Einav N. Gal-Yam. ESR1 mutations abundance in local recurrence of endocrine-treated breast cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 657.
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Affiliation(s)
| | - Maya Dadiani
- Chaim Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | | | - Moran Gadot
- Chaim Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | - Tal Sela
- Chaim Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | - Irina Marin
- Chaim Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | - Daniela Necula
- Chaim Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | - Anya Pavlovsky
- Chaim Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | - Iris Barshack
- Chaim Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | - Bella Kaufman
- Chaim Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
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Dadiani M, Friedlander G, Perry G, Lahat-Balint N, Marin I, Pavlovski A, Barshack I, Nili Gal-Yam E, Kaufman B. PO-312 Longitudinal transcriptomics reveals heterogeneous dynamics through the course of disease and therapy in breast cancer. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.342] [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: 11/04/2022] Open
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Mardamshina M, Necula D, Marin I, Barshack I, Geiger T. PO-325 Topological-proteomics of breast cancer intra-tumour heterogeneity reveals metabolic diversity within single tumours. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.838] [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: 11/04/2022] Open
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Cioca A, Cimpean AM, Ceausu RA, Tarlui V, Toma A, Marin I, Raica M. Evaluation of Podoplanin Expression in Hepatocellular Carcinoma Using RNAscope and Immunohistochemistry - A Preliminary Report. Cancer Genomics Proteomics 2018; 14:383-387. [PMID: 28871005 DOI: 10.21873/cgp.20048] [Citation(s) in RCA: 6] [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: 07/18/2017] [Revised: 08/03/2017] [Accepted: 08/04/2017] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Podoplanin (PDPN), a mucin-type transmembrane glycoprotein, is expressed in a variety of human cancer types, and contributes to tumor progression. Our goal was to evaluate PDPN expression in hepatocellular carcinoma (HCC) using both immunohistochemistry (IHC) and RNAscope in situ hybridization. MATERIALS AND METHODS Twenty patients with HCC who underwent partial hepatectomy with curative intent were retrospectively analyzed. RESULTS IHC gave positive results in 11 cases, while RNAscope assay for PDPN detected amplification in 16 cases. A significant association was noted between PDPN protein expression and histological tumor grade (p=0.036). Four cases that had negative PDPN results by RNAscope were also negative by IHC, while the remaining five cases with negative results by IHC were positive by RNAscope. A positive relationship was found between PDPN mRNA protein expression (p<0.001). CONCLUSION Our preliminary results suggest that PDPN contributes to the malignant potential of HCC. RNAscope proved to be a more sensitive and reliable method than IHC in PDPN detection.
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Affiliation(s)
- Andreea Cioca
- Department of Histology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania .,Angiogenesis Research Center, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Anca Maria Cimpean
- Department of Histology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania.,Angiogenesis Research Center, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Raluca Amalia Ceausu
- Department of Histology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania.,Angiogenesis Research Center, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Valeria Tarlui
- Angiogenesis Research Center, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Alina Toma
- Angiogenesis Research Center, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Irina Marin
- Department of Pathology, Sheba Medical Center, Tel-Hashomer, Israel
| | - Marius Raica
- Department of Histology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania.,Angiogenesis Research Center, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
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Marin I. COXI based phylogenetic analysis of Caucasian clade of European Troglocaris (Crustacea: Decapoda: Atyidae) with the suggestion of a new taxonomic group structure. Biosys divers 2017. [DOI: 10.15421/011749] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
New genetic data on Caucasian troglobiotic shrimps collected from the territory of Russia, Abkhazia and Western Georgia are presented. Based on new genetic data on the marker region of subunit I of cytochrome oxidase of mitochondrial DNA (COXI mtDNA) of Caucasian species and other taxa of European cave shrimps (Troglocaris s.l.) from GenBank (NCBI) database, a new generic structure is presented. Based on a significant genetic divergence of COXI mtDNA subgenera of Troglocaris s.l., namely Troglocaris s.s., Xiphocaridinella and Spelaeocaris, should be considered as separate genera while Troglocaris (Troglocaridella) hercegovinensis (Babić, 1922) is suggested to be transferred within Dinaric genus Spelaeocaris as Spealeocaris hercegovinensis (Babić, 1922) comb. nov. Besides, Troglocaris bosnica shows a significant a genetic difference (at the level of the separate genus) from the remaining representatives of the genus Troglocaris s.s. Moreover, p-distances (COXI) of about 17% are supposed for generic separation within European Troglocaris-related atyid shrimps and 5% for separation of cryptic species within Caucasian Xiphocaridinella. A list of all known taxa of Troglocaris-related atyid shrimps of the European part and a discussion of the general distribution of troglocaridid atyid shrimps in the Balkans and the Caucasus are presented. A new version of divergence events between Dinaric–Caucasian Troglocaris lineages (genera) based on new genetic data is suggested.
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Dauden E, Lazaro P, Aguilar M, Blasco A, Suarez C, Marin I, Queiro R, Bassas-Vila J, Martorell A, García-Campayo J. Recommendations for the management of comorbidity in hidradenitis suppurativa. J Eur Acad Dermatol Venereol 2017; 32:129-144. [DOI: 10.1111/jdv.14517] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 07/20/2017] [Indexed: 12/18/2022]
Affiliation(s)
- E. Dauden
- Department of Dermatology; Instituto de Investigación Sanitaria Princesa (IIS-IP); Hospital Universitario de la Princesa; Madrid Spain
| | - P. Lazaro
- Independent Researcher in Health Services Research; Madrid Spain
| | - M.D. Aguilar
- Independent Researcher in Health Services Research; Madrid Spain
| | - A.J. Blasco
- Independent Researcher in Health Services Research; Madrid Spain
| | - C. Suarez
- Department of Internal Medicine; Instituto de Investigación Sanitaria Princesa (IIS-IP); Hospital Universitario de la Princesa, UAM; Madrid Spain
| | - I. Marin
- Department of Gastroenterology; Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM); Madrid Spain
| | - R. Queiro
- Rheumatology Division; Hospital Universitario Central de Asturias; Oviedo Spain
| | - J. Bassas-Vila
- Department of Dermatology; Hospital Universitari Germans Trias i Pujol; Autonomous University of Barcelona; Barcelona Spain
| | - A. Martorell
- Department of Dermatology; Hospital de Manises; Valencia Spain
| | - J. García-Campayo
- Aragonese Institute of Health Sciences; Miguel Servet University Hospital; University of Zaragoza; Zaragoza Spain
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Morro A, Catalina F, Pablos J, Corrales T, Marin I, Abrusci C. Surface modification of poly(ε-caprolactone) by oxygen plasma for antibacterial applications. Biocompatibility and monitoring of live cells. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.07.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Cisternas D, Scheerens C, Omari T, Monrroy H, Hani A, Leguizamo A, Bilder C, Ditaranto A, Ruiz de León A, Pérez de la Serna J, Valdovinos MA, Coello R, Abrahao L, Remes-Troche J, Meixueiro A, Zavala MA, Marin I, Serra J. Anxiety can significantly explain bolus perception in the context of hypotensive esophageal motility: Results of a large multicenter study in asymptomatic individuals. Neurogastroenterol Motil 2017; 29. [PMID: 28480513 DOI: 10.1111/nmo.13088] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 03/14/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Previous studies have not been able to correlate manometry findings with bolus perception. The aim of this study was to evaluate correlation of different variables, including traditional manometric variables (at diagnostic and extreme thresholds), esophageal shortening, bolus transit, automated impedance manometry (AIM) metrics and mood with bolus passage perception in a large cohort of asymptomatic individuals. METHODS High resolution manometry (HRM) was performed in healthy individuals from nine centers. Perception was evaluated using a 5-point Likert scale. Anxiety was evaluated using Hospitalized Anxiety and Depression scale (HAD). Subgroup analysis was also performed classifying studies into normal, hypotensive, vigorous, and obstructive patterns. KEY RESULTS One hundred fifteen studies were analyzed (69 using HRM and 46 using high resolution impedance manometry (HRIM); 3.5% swallows in 9.6% of volunteers were perceived. There was no correlation of any of the traditional HRM variables, esophageal shortening, AIM metrics nor bolus transit with perception scores. There was no HRM variable showing difference in perception when comparing normal vs extreme values (percentile 1 or 99). Anxiety but not depression was correlated with perception. Among hypotensive pattern, anxiety was a strong predictor of variance in perception (R2 up to .70). CONCLUSION AND INFERENCES Bolus perception is less common than abnormal motility among healthy individuals. Neither esophageal motor function nor bolus dynamics evaluated with several techniques seems to explain differences in bolus perception. Different mechanisms seem to be relevant in different manometric patterns. Anxiety is a significant predictor of bolus perception in the context of hypotensive motility.
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Affiliation(s)
- D Cisternas
- Universidad del Desarrollo, Facultad de Medicina, Clínica Alemana de Santiago, Santiago, Chile
| | - C Scheerens
- Translational Research Center for Gastrointestinal Disorders, KU Leuven, Leuven, Belgium
| | - T Omari
- Human Physiology, Medical Science and Technology, School of Medicine, FlindersUniversity, Adelaide, SA, Australia
| | - H Monrroy
- Department of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - A Hani
- San Ignacio Hospital, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - A Leguizamo
- San Ignacio Hospital, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - C Bilder
- Neurogastroenterology, School of Medicine, Universitary Hospital FundacionFavaloro, Buenos Aires, Argentina
| | - A Ditaranto
- Neurogastroenterology, School of Medicine, Universitary Hospital FundacionFavaloro, Buenos Aires, Argentina
| | - A Ruiz de León
- Hospital Clínico San Carlos, Universidad Complutense, Madrid, Spain
| | | | - M A Valdovinos
- Motility Lab, Department of Gastroenterology, National Institute of Medical Sciences and Nutrition Salvador Zubirán, Mexico City, Mexico
| | | | - L Abrahao
- University Hospital Clementino Fraga Filho, Rio de Janeiro, Brazil
| | - J Remes-Troche
- Digestive Physiology and Motility Lab, Medical BiologicalResearchInstitute, Veracruzana University, Veracruz, Mexico
| | - A Meixueiro
- Digestive Physiology and Motility Lab, Medical BiologicalResearchInstitute, Veracruzana University, Veracruz, Mexico
| | - M A Zavala
- Digestive Physiology and Motility Lab, Medical BiologicalResearchInstitute, Veracruzana University, Veracruz, Mexico
| | - I Marin
- Motility and Functional Gut Disorders Unit, Department of Medicine, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Autonomous University of Barcelona, University Hospital Germans TriasiPujol, Badalona, Spain
| | - J Serra
- Motility and Functional Gut Disorders Unit, Department of Medicine, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Autonomous University of Barcelona, University Hospital Germans TriasiPujol, Badalona, Spain
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Marin I, Cisternas D, Abrao L, Lemme E, Bilder C, Ditaranto A, Coello R, Hani A, Leguizamo AM, Meixueiro A, Remes-Troche J, Zavala MA, Ruiz de León A, Perez de la Serna J, Valdovinos MA, Serra J. Normal values of esophageal pressure responses to a rapid drink challenge test in healthy subjects: results of a multicenter study. Neurogastroenterol Motil 2017; 29. [PMID: 28133879 DOI: 10.1111/nmo.13021] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 11/30/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND Multiple water swallow is increasingly used as a complementary challenge test in patients undergoing high-resolution manometry (HRM). Our aim was to establish the range of normal pressure responses during the rapid drink challenge test in a large population of healthy subjects. METHODS Pressure responses to a rapid drink challenge test (100 or 200 mL of water) were prospectively analyzed in 105 healthy subjects studied in nine different hospitals from different countries. Esophageal motility was assessed in all subjects by solid-state HRM. In 18 subjects, bolus transit was analyzed using concomitant intraluminal impedance monitoring. KEY RESULTS A virtually complete inhibition of pressure activity was observed during multiple swallow: Esophageal body pressure was above 20 mm Hg during 1 (0-8) % and above 30 mm Hg during 1 (0-5) % of the swallow period, and the pressure gradient across the esophagogastric junction was low (-1 (-7 to 4) mm Hg). At the end of multiple swallow, a postswallow contraction was evidenced in only 50% of subjects, whereas the remaining 50% had non-transmitted contractions. Bolus clearance was completed after 7 (1-30) s after the last swallow, as evidenced by multichannel intraluminal impedance. CONCLUSIONS & INFERENCES The range of normal pressure responses to a rapid drink challenge test in health has been established in a large multicenter study. Main responses are a virtually complete inhibition of esophageal pressures with a low-pressure gradient across esophagogastric junction. This data would allow the correct differentiation between normal and disease when using this test.
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Affiliation(s)
- I Marin
- Motility and Functional Gut Disorders Unit, University Hospital Germans Trias i Pujol, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Department of Medicine, Autonomous University of Barcelona, Badalona, Spain
| | - D Cisternas
- Clínica Alemana de Santiago, Facultad de Medicina, Universidad del Desarrollo, Santiago de Chile, Chile
| | - L Abrao
- University Hospital Clementino Fraga Filho, Rio de Janeiro, Brazil
| | - E Lemme
- University Hospital Clementino Fraga Filho, Rio de Janeiro, Brazil
| | - C Bilder
- Hospital Universitario - Escuela de Medicina, Fundación Favaloro, Buenos Aires, Argentina
| | - A Ditaranto
- Hospital Universitario - Escuela de Medicina, Fundación Favaloro, Buenos Aires, Argentina
| | | | - A Hani
- San Ignacio Hospital Pontificia Universidad Javeriana, Bogotá, Colombia
| | - A M Leguizamo
- San Ignacio Hospital Pontificia Universidad Javeriana, Bogotá, Colombia
| | | | | | - M A Zavala
- Veracruzana University, Veracruz, Mexico
| | | | | | | | - J Serra
- Motility and Functional Gut Disorders Unit, University Hospital Germans Trias i Pujol, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Department of Medicine, Autonomous University of Barcelona, Badalona, Spain
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14
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Zimmerman-Moreno G, Marin I, Lindner M, Barshack I, Garini Y, Konen E, Mayer A. Automatic classification of cancer cells in multispectral microscopic images of lymph node samples. Annu Int Conf IEEE Eng Med Biol Soc 2017; 2016:3973-3976. [PMID: 28269155 DOI: 10.1109/embc.2016.7591597] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Histopathological analysis is crucial for the diagnosis of a large number of cancer types. A lot of progress has been made in the development of molecular based assays, but many of the cases still require the careful analysis of the stained tissue under a bright-field microscope and its analysis. This procedure is costly and time-consuming. We present a novel method for classification of cancer cells in lymph node images. It is based on the measurement of the spectral image of hematoxylin and eosin stained sample under the microscope and the analysis of the acquired data using state of the art machine learning techniques. The method is based on the analysis of the spectral information of the cells as well as their morphological properties. A large number of descriptors is extracted for each cell location, which are used to train a supervised classifier which discriminates between normal and cancer cells. We show that a reliable analysis can be made with detection rate (recall) of 81%-100% for the cancer class.
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15
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Cioca A, Ceausu AR, Marin I, Raica M, Cimpean AM. The multifaceted role of podoplanin expression in hepatocellular carcinoma. Eur J Histochem 2017; 61:2707. [PMID: 28348421 PMCID: PMC5311863 DOI: 10.4081/ejh.2017.2707] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 07/29/2016] [Revised: 02/02/2017] [Accepted: 02/03/2017] [Indexed: 12/20/2022] Open
Abstract
The role of podoplanin in hepatocellular carcinoma (HCC) is not clear yet. The aim of our study was to evaluate the expression of podoplanin in HCC and to determine its role in hepatocarcinogenesis. We performed immunohistochemistry with monoclonal D2-40 antibody, on paraffin-embedded tissue sections of 72 patients diagnosed with HCC. Lymphatic vessels density (LVD) was increased in patients who had vascular invasion at the time of diagnosis (P=0.018) and in those with associated cirrhosis (P=0.006). Tumor cells showing podoplanin expression were correlated with histological grade (P=0.040). Podoplanin-expressing cancer associated fibroblasts (CAFs) were correlated with both LVD (P=0.019) and tumor cells (P=0.015). Our results sustain the dual role of podoplanin in HCC by its involvement in both HCC tumorigenesis, lymphatic neovascularization and tumor invasion invasiveness. A possible crosstalk between epithelial and stromal tumor cells in HCC tumor microenvironment may be mediated by podoplanin, but this hypothesis needs further studies to elucidate this interrelation.
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Affiliation(s)
- Andreea Cioca
- "Iuliu Hatieganu" University of Medicine and Pharmacy, Department of Pathology.
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16
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Morro A, Catalina F, Corrales T, Pablos JL, Marin I, Abrusci C. New blends of ethylene-butyl acrylate copolymers with thermoplastic starch. Characterization and bacterial biodegradation. Carbohydr Polym 2016; 149:68-76. [PMID: 27261731 DOI: 10.1016/j.carbpol.2016.04.075] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [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: 01/15/2016] [Revised: 04/13/2016] [Accepted: 04/16/2016] [Indexed: 11/17/2022]
Abstract
Ethylene-butyl acrylate copolymer (EBA) with 13% of butyl acrylate content was used to produce blends with 10, 30 and 60% of thermoplastic starch (TPS) plasticized with glycerol. Ethylene-acrylic acid copolymer (EAA) was used as compatibilizer at 20% content with respect to EBA. The blends were characterized by X-ray diffraction, ATR-Fourier Transform Infrared Spectroscopy (ATR-FTIR), Scanning Electron Microscopy (SEM), water-Contact Angle measurements (CA), Differential Scanning Calorimetry (DSC) and Stress-strain mechanical tests. Initiated autoxidation of the polymer blends was studied by chemiluminescence (CL) confirming that the presence of the polyolefin-TPS interphase did not substantially affect the oxidative thermostability of the materials. Three bacterial species have been isolated from the blend films buried in soil and identified as Bacillus subtilis, Bacillus borstelensis and Bacillus licheniformis. Biodegradation of the blends (28days at 45°C) was evaluated by carbon dioxide measurement using the indirect impedance technique.
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Affiliation(s)
- A Morro
- Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid-UAM, Cantoblanco, 28049 Madrid, Spain
| | - F Catalina
- Department of Applied Macromolecular Chemistry, Instituto de Ciencia y Tecnología de Polímeros, C.S.I.C. Juan de la Cierva 3, 28006 Madrid, Spain.
| | - T Corrales
- Department of Applied Macromolecular Chemistry, Instituto de Ciencia y Tecnología de Polímeros, C.S.I.C. Juan de la Cierva 3, 28006 Madrid, Spain
| | - J L Pablos
- Department of Applied Macromolecular Chemistry, Instituto de Ciencia y Tecnología de Polímeros, C.S.I.C. Juan de la Cierva 3, 28006 Madrid, Spain
| | - I Marin
- Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid-UAM, Cantoblanco, 28049 Madrid, Spain
| | - C Abrusci
- Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid-UAM, Cantoblanco, 28049 Madrid, Spain.
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17
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Marin I, Serra J. Patterns of esophageal pressure responses to a rapid drink challenge test in patients with esophageal motility disorders. Neurogastroenterol Motil 2016; 28:543-53. [PMID: 26686375 DOI: 10.1111/nmo.12749] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 11/12/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND Multiple rapid swallow has been proposed as a challenge test that can help diagnosis and management of patients with esophageal motility disorders. Our aim was to characterize specific pressure patterns in response to a rapid drink challenge test in patients with esophageal motility disorders, and to determine the potential of these patterns in the diagnosis of patients with esophageal symptoms but normal single swallow manometry. METHODS Pressure responses to a rapid drink challenge test (rapid swallow of 200 mL water) were prospectively analyzed in 30 healthy controls and 285 patients with esophageal symptoms: 33 achalasia, 68 hypocontractile motility, 27 hypercontractile motility and 160 patients with normal manometry. KEY RESULTS Three different patterns of responses were characterized: (i) hypopressive or normal pattern that was shared by healthy subjects and patients with hypocontractile peristalsis, and discriminated patients with non-obstructive hypercontractile motility or achalasia (p < 0.001; sensitivity 80% and specificity 93%), (ii) brief hyperpressive pattern observed in patients with non-obstructive hypercontractile disorders (distal spasm and hypercontractile esophagus), and (iii) prolonged hyperpressive pattern, that discriminated achalasia from patients with non-obstructive hypercontractile disorders (p < 0.001; sensitivity 70% and specificity 85%). Seventeen percent of patients with esophageal symptoms but normal single swallow manometry had abnormal responses to the drink challenge test: 14% a brief hyperpressive pattern, and 3% a prolonged hyperpressive pattern. CONCLUSIONS & INFERENCES Specific patterns of responses to a rapid drink challenge test could help identification of motility disorders in patients with esophageal symptoms but unclear or normal esophageal manometry.
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Affiliation(s)
- I Marin
- Motility and Functional Gut Disorders Unit, University Hospital Germans Trias i Pujol, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Department of Medicine, Autonomous University of Barcelona, Badalona, Spain
| | - J Serra
- Motility and Functional Gut Disorders Unit, University Hospital Germans Trias i Pujol, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Department of Medicine, Autonomous University of Barcelona, Badalona, Spain
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18
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Dadiani M, Bossel Ben-Moshe N, Paluch-Shimon S, Perry G, Balint N, Marin I, Pavlovski A, Morzaev D, Kahana-Edwin S, Yosepovich A, Gal-Yam EN, Berger R, Barshack I, Domany E, Kaufman B. Tumor Evolution Inferred by Patterns of microRNA Expression through the Course of Disease, Therapy, and Recurrence in Breast Cancer. Clin Cancer Res 2016; 22:3651-62. [PMID: 26957561 DOI: 10.1158/1078-0432.ccr-15-2313] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 02/21/2016] [Indexed: 11/16/2022]
Abstract
PURPOSE Molecular evolution of tumors during progression, therapy, and metastasis is a major clinical challenge and the main reason for resistance to therapy. We hypothesized that microRNAs (miRNAs) that exhibit similar variation of expression through the course of disease in several patients have a significant function in the tumorigenic process. EXPERIMENTAL DESIGN Exploration of evolving disease by profiling 800 miRNA expression from serial samples of individual breast cancer patients at several time points: pretreatment, posttreatment, lymph nodes, and recurrence sites when available (58 unique samples from 19 patients). Using a dynamic approach for analysis, we identified expression modulation patterns and classified varying miRNAs into one of the eight possible temporal expression patterns. RESULTS The various patterns were found to be associated with different tumorigenic pathways. The dominant pattern identified an miRNA set that significantly differentiated between disease stages, and its pattern in each patient was also associated with response to therapy. These miRNAs were related to tumor proliferation and to the cell-cycle pathway, and their mRNA targets showed anticorrelated expression. Interestingly, the level of these miRNAs was lowest in matched recurrent samples from distant metastasis, indicating a gradual increase in proliferative potential through the course of disease. Finally, the average expression level of these miRNAs in the pretreatment biopsy was significantly different comparing patients experiencing recurrence to recurrence-free patients. CONCLUSIONS Serial tumor sampling combined with analysis of temporal expression patterns enabled to pinpoint significant signatures characterizing breast cancer progression, associated with response to therapy and with risk of recurrence. Clin Cancer Res; 22(14); 3651-62. ©2016 AACR.
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Affiliation(s)
- Maya Dadiani
- Cancer Research Center, Sheba Medical Center, Tel-Hashomer, Israel.
| | - Noa Bossel Ben-Moshe
- Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, Israel
| | | | - Gili Perry
- Cancer Research Center, Sheba Medical Center, Tel-Hashomer, Israel
| | - Nora Balint
- Pathology Institute, Sheba Medical Center, Tel-Hashomer, Israel
| | - Irina Marin
- Pathology Institute, Sheba Medical Center, Tel-Hashomer, Israel
| | - Anya Pavlovski
- Pathology Institute, Sheba Medical Center, Tel-Hashomer, Israel
| | - Dana Morzaev
- Cancer Research Center, Sheba Medical Center, Tel-Hashomer, Israel
| | | | - Ady Yosepovich
- Pathology Institute, Sheba Medical Center, Tel-Hashomer, Israel
| | | | - Raanan Berger
- Oncology Institute, Sheba Medical Center, Tel-Hashomer, Israel
| | - Iris Barshack
- Pathology Institute, Sheba Medical Center, Tel-Hashomer, Israel. Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eytan Domany
- Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, Israel
| | - Bella Kaufman
- Oncology Institute, Sheba Medical Center, Tel-Hashomer, Israel. Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Cioca A, Olteanu EG, Gisca MD, Morosanu CO, Marin I, Florian IS. Expression of EGFR in Paired New and Recurrent Glioblastomas. Asian Pac J Cancer Prev 2016; 17:4205-4208. [PMID: 27797218] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
BACKGROUND The aim of this study was to analyse the expression of EGFR in newly diagnosed and recurrent glioblastoma multiforme (GBM). MATERIALS AND METHODS Our study included a total of 48 paired samples collected from 24 patients diagnosed with GBM. The intensity of EGFR cytoplasmatic staining was scored on a scale of 1-3+ (weak, intermediate or strong). RESULTS We found EGFR overexpression in 23 patients (96%) with newly diagnosed GBM, while all recurrent tumours overexpressed EGFR. Ten recurrent tumours (42%) had a lower expression than their new counterpart 13 tumours (54%) had a similar expression, and only one case (2%) had increased expression on recurrence. The expression of EGFR in newly diagnosed GBM was significantly correlated with EGFR expression in recurrent tumour (p = 0.036). In addition, new GBMs with strong EGFR expression had a mean relapse-free interval of 11.5 months (p=0.017). A benefit of combined therapy was observed in the radiotherapy-plus-chemotherapy group where the average time was 11 months (p=0.011), as compared with surgery/radiotherapy alone (average time 6.8 months). CONCLUSIONS The present data show that EGFR is overexpressed in paired GBMs. The discrepancies of EGFR expression between the primary tumour and the recurrence suggest heterogeneity of GBMs but also unity at relapse.
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Affiliation(s)
- Andreea Cioca
- Department of Pathology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania E-mail :
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20
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Tomi A, Marin I. Angiofluorographic aspects in age-related macular degeneration. J Med Life 2014; 7 Spec No. 4:4-17. [PMID: 27057244 PMCID: PMC4813616] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/30/2022] Open
Abstract
Although AMD (age-related macular degeneration) has been described for over 100 years, there is neither a standard agreement on the definition of specific lesions nor a generally accepted classification system. For example, the age limits for AMD varied widely in different clinical studies; the methods used for examination also vary (visual acuity, perimetry, contrast sensitivity, slit lamp examination of the fundus, retinal photography, fluorescein angiography, indocyanine green angiography). We described the multitude of angiofluorographic aspects in patients with AMD and conceived a classification to be easily used in clinical practice. Although a detailed ophthalmoscopy can often identify the characteristic lesions of AMD, a complete picture is obtained by fluorescein angiography. The angiographic classification of AMD is structured similarly to the clinical one. It has two main patterns, non-exudative and exudative lesions, but it provides more information about the nature of the lesions. In the last three decades, an impressive amount of information regarding the prevalence, progression and risk factors for AMD has been published. The source of this information is mainly represented by the large population studies that are often multicenter studies. Recognizing the clinical signs of AMD and classifying them into different stages is important for the prognosis and the therapeutical decision, but also for conceiving study protocols.
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Affiliation(s)
- A Tomi
- Department of Ophthalmology, “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania,Clinical Hospital for Ophthalmic Emergencies, Bucharest, Romania
| | - I Marin
- Clinical Hospital for Ophthalmic Emergencies, Bucharest, Romania
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Aldecoa R, Marin I. SurpriseMe: an integrated tool for network community structure characterization using Surprise maximization. Bioinformatics 2013; 30:1041-2. [DOI: 10.1093/bioinformatics/btt741] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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22
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Vamanu E, Pelinescu D, Marin I, Vamanu A. Study of probiotic strains viability from PROBAC product in a single chamber gastrointestinal tract simulator. Food Sci Biotechnol 2012. [DOI: 10.1007/s10068-012-0128-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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23
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Gabel LA, Marin I, LoTurco JJ, Che A, Murphy C, Manglani M, Kass S. Mutation of the dyslexia-associated gene Dcdc2 impairs LTM and visuo-spatial performance in mice. Genes Brain Behav 2011; 10:868-75. [PMID: 21883923 DOI: 10.1111/j.1601-183x.2011.00727.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Developmental reading disorder (RD) affects 5-10% of school aged children, with a heritability of approximately 60%. Genetic association studies have identified several candidate RD susceptibility genes, including DCDC2; however, a direct connection between the function of these genes and cognitive or learning impairments remains unclear. Variants in DCDC2, a member of the doublecortin family of genes, have been associated in humans with RD and ADHD and Dcdc2 may play a role in neuronal migration in rats. In this study, we examined the effect of Dcdc2 mutation on cognitive abilities in mice using a visual attention and visuo-spatial learning and memory task. We show that both heterozygous and homozygous mutations of Dcdc2 result in persistent visuo-spatial memory deficits, as well as visual discrimination and long-term memory deficits. These behavioral deficits occur in the absence of neuronal migration disruption in the mutant mice, and may be comorbid with an anxiety phenotype. These are the first results to suggest a direct relationship between induced mutation in Dcdc2 and changes in behavioral measures. Dcdc2 mutant mice should prove useful in future studies designed to further dissect the underlying neural mechanisms that are impaired following Dcdc2 mutation.
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Affiliation(s)
- L A Gabel
- Department of Psychology, Lafayette College, Easton, PA 18042, USA.
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Tomi A, Moldoveanu A, Marin I. [Therapeutic approach in patients with age-related macular degeneration and cataract]. Oftalmologia 2011; 55:54-59. [PMID: 21888070] [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: 05/31/2023]
Abstract
Management of the patient with coexisting cataract and AMD presents unique challenges to the cataract surgeon, the retina specialist, and the patient. A common clinical scenario is the patient in whom both the cataract and macular pathology appear to be contributing to decreased visual acuity. As with any surgery, the expectations from cataract removal must be evaluated thoroughly and understood clearly by both the patient and the cataract surgeon. Most patients with AMD who undergo cataract surgery feel that the surgery is worthwhile, and they report improvement of visual function and quality of life. In patients with mild AMD, improvement in central visual acuity and attainment of driving vision are realistic and achievable goals. In an eye with central disciform scarring or geographic atrophy there may be potential for improvement in color discrimination, contrast, or clarity of peripheral vision. In cases of dense cataract obscuring macular detail, cataract removal may be necessary to allow for adequate biomicroscopy and angiography, especially in an eye that may be at high risk for the development of choroidal neovascularization. It is often challenging to estimate the relative impact on visual impairment made by the lens opacities and the macular changes and the benefits and risks of cataract surgery in eyes with AMD should be carefully evaluated. Is cataract surgery justified in these patients? Does cataract surgery aggravate AMD in some patients?
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Affiliation(s)
- Anca Tomi
- Spitalul clinic de Urgenţe Oftalmologice Bucureşti
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Brezean I, Aldoescu S, Catrina E, Fetche N, Marin I, Păcescu E. Gallstone ileus: analysis of eight cases and review of the literature. Chirurgia (Bucur) 2010; 105:355-359. [PMID: 20726301] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
OBJECTIVE We hereby analyzed a series of gallstone ileus cases operated on in our department starting from a Bouveret syndrome case. METHOD Retrospective analysis of all gallstone ileus cases who underwent surgery in our department during the last 26 years. We took into consideration diagnostic elements, time from admission to surgery, type of surgery and post-operative outcome. RESULTS During this period 9,143 gallstones were deferred to surgery; 27 biliary-digestive fistulae were discovered during surgery; gallstone ileus complicated fistula in 8 patients. Gallstone ileus was exclusively present in elderly women with associated comorbidities. Diagnosis was suggested by clinical features of acute or incomplete intestinal obstruction; it was sustained by imagistic studies with different degrees of relevance. The average time from admission to surgery was 2.6 days. Surgical approach varied from simple enterolithotomy to additional fistula repair. The outcome was uneventful in most of the cases with only one exception. CONCLUSIONS gallstone ileus is a rare condition, occurring in elders with important comorbidities. The choice for surgical procedure depends on the obstructive syndrome's gravity and associated comorbidities; the type of intervention does not significantly influence post-operative morbidity and mortality rates.
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Affiliation(s)
- I Brezean
- Department of Surgery, Dr. I. Cantacuzino Clinical Hospital, Bucharest, Romania.
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26
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Oggerin M, Arahal DR, Rubio V, Marin I. Identification of Beijerinckia fluminensis strains CIP 106281T and UQM 1685T as Rhizobium radiobacter strains, and proposal of Beijerinckia doebereinerae sp. nov. to accommodate Beijerinckia fluminensis LMG 2819. Int J Syst Evol Microbiol 2009; 59:2323-8. [DOI: 10.1099/ijs.0.006593-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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27
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Marin I, Doran H, Catrina E, Degeratu D, Predescu G, Zaharia R, Pătraşcu T. [The gastric plasmacytoma--a case report]. Chirurgia (Bucur) 2009; 104:213-217. [PMID: 19499666] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The gastric plasmacytoma represents a rarely encountered, so that, the diagnosis criteria, the medical attitude and the evolution of this disease are less coded. It is known the fact that this tumours, extramedullary plasmacytomas with gastric localization, develop in soft submucous tissue, therefore it's very difficult or even impossible preoperative diagnosis through an upper endoscopy including biopsy. We present the case of a 54 years old patient, with no significant pathological personal record, that was admitted in our Clinic for having melenic dark stools which have repeated within a 6 months period prior to this hospitalisation. Repeated gastric mucosal samples taken in another medical unit shown normal aspects, contrary to all imaging testing (e.g. ultrasonography, upper endoscopy and barium swallow) which revealed a tumor mass of considerable extent at the level of the gastric corpus. First-line therapy was gastric resection followed by radiotherapy, because it is well known that the tumour is highly radiosensitive. The patient's postoperative course was satisfactory, showing no signs or recurrence 6 months after surgery at upper endoscopy and CT-scan.
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Affiliation(s)
- I Marin
- Clinica de chirurgie "Prof. I. Juvara", Spitalul Clinic "Dr. I. Cantacuzino", Bucuresţi.
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Marin I, Coursier JM. Le retour à domicile. Rev Mal Respir 2008; 25:1057-8. [DOI: 10.1016/s0761-8425(08)74427-9] [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: 10/21/2022]
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Valocik G, Majercák I, Mitro P, Tóthová V, Marin I. [Dobutamine exercise echocardiography versus SPECT in diagnosing ischemic heart disease]. Vnitr Lek 2007; 53:1303-1309. [PMID: 18357866] [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: 05/26/2023]
Abstract
UNLABELLED The aim of the study was comparison of dobutamine stress echocardiography with SPECT in the assessment of ischemic heart disease. METHODS It is a retrospective study analysing 119 patients (72 women and 47 men, mean age 56.9 +/- 10.68 years), who underwent dobutamine stress echocardiography and SPECT. Because of inconclusive findings (LBBB, decreased myocardial perfusion by SPECT depending on the position of the body), 23 patients were excluded. RESULTS In the whole group of 96 patients the diagnostic validity of dobutamine stress echocardiography was as follows: sensitivity 78%, specificity 93%, positive predictive value 89%, negative predictive value 85%, and kappa value 0.71. In women the sensitivity was 69%, specificity 93%, positive predictive value 79%, negative predictive value 89%, and kappa value 0.64. In men the diagnostic validity was: sensitivity 83%, specificity 92%, positive predictive value 95%, negative predictive value 73%, and kappa value 0.70. CONCLUSION In conclusion, dobutamine stress echocardiography is highly sensitive and specific method in the diagnosis of ischemic heart disease with good agreement when compared with SPECT. Because of availability and lower cost in comparison with SPECT, dobutamine stress echocardiography is an optimal method in the diagnosis and management of patients with ischemic heart disease in routine clinical practice.
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Affiliation(s)
- G Valocik
- III. interná klinika Lekárskej fakulty UPJS a FN L. Pasteura, Kosice, Slovenská republika.
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Carbone J, Gonzalez-Lara V, Sarmiento E, Chean C, Perez JL, Marin I, Rodríguez-Molina JJ, Gil J, Fernández-Cruz E. Humoral and cellular monitoring to predict the development of infection in Crohn's disease patients beginning treatment with infliximab. Ann N Y Acad Sci 2007; 1107:346-55. [PMID: 17804562 DOI: 10.1196/annals.1381.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Although severe infectious complications are rare, it is important to properly screen patients for predisposing conditions before beginning treatment with infliximab. We assessed immunity markers that might provide prognostic value for the development of infection in Crohn's disease patients after treatment with infliximab. In a prospective study, 34 fistulizing Crohn's disease patients (mean age 37 years) were studied. Patients were scheduled to receive three infusions of infliximab (5 mg/kg) at weeks 0, 2, and 6. Immunologic studies: Serum immunoglobulin (IgG, IgA, IgM), IgG-subclasses, and complement (C3, C4, factor B) determined by nephelometry; CD3+, CD3+CD4+, CD3+CD8+, CD19+, and CD56+CD3- lymphocyte subsets performed by flow cytometry. During a mean follow-up of 56 months, 1 patient had disseminated tuberculosis and 2 patients had severe bacterial infections. The presence of infection was associated with significantly higher IgM (246 vs. 121 mg/dL; Mann-Whitney test, P = 0.01), lower C3 (64 vs. 118, P = 0.02), lower C4 concentrations (12 vs. 25, P = 0.02), and with decreased levels of CD19 B cells (47 vs. 290, P = 0.03) in the baseline study. Further prospective studies in a larger number of patients are suggested to examine whether early monitoring of immunocompetence might help to identify the risk of infection in patients treated with infliximab.
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Affiliation(s)
- J Carbone
- Department of Immunology, University Hospital Gregorio Marañon, Dr. Esquerdo 46, 28007, Madrid, Spain.
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Pătraşcu T, Doran H, Brezean I, Marin I, Catrina E, Vîlcu M, Mihalache O. [Management of biliary fistulas in surgery for hepatic hydatid cyst]. Chirurgia (Bucur) 2007; 102:531-536. [PMID: 18018352] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
One of the most important problems of the surgical treatment of the hydatid disease of the liver is the remaining cavity of the cyst. Its evolution is mainly decided by the existence and the debit of a biliary fistula. During 10 years (1997-2006), 138 patients with 166 hydatid cysts of the liver were admitted and operated in our clinic. Among them, 57 cysts had a biliary fistula, found during the operation, while in 11 other patients the fistula became obvious 1 or 2 days after the procedure. The incidence of biliary fistulas (68 of 166 cases, which means 41%) is higher, due to the location of the cysts, mainly in the central parts of the liver. There were 44 (65%) low debit fistulas and 24 (35%) high debit fistulas. Our surgical attitude regarding the cavities with biliary fistulas has considerably changed; while between 1997-2000 an anastomosis with a Y or Omega jejunal loop was the most frequent technique, nowadays we use the external drainage of the cavity, associated to endoscopic sphincterotomy, for fistulas with large volumes (more than 300 ml/day) and/or persistent. Whenever it is possible, we practice the direct suture of the biliary fistula.
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Affiliation(s)
- Tr Pătraşcu
- Clinica de Chirurgie I. Juvara, Spitalul Clinic Dr. I. Cantacuzino, Bucureşti.
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Brochut PF, Marin I, Baehni P, Mombelli A. Predictive value of clinical and microbiological parameters for the treatment outcome of scaling and root planing. J Clin Periodontol 2005; 32:695-701. [PMID: 15966873 DOI: 10.1111/j.1600-051x.2005.00730.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To compare the clinical and microbiological outcome of non-surgical periodontal therapy after 6 months with data obtained after hygienic phase or 6 weeks after completion of non-surgical therapy, in order to evaluate the value of clinical and microbiological parameters to predict treatment success. MATERIAL AND METHODS Clinical and microbiological data were available from 271 sites in 10 systemically healthy non-smokers with moderate-to-advanced chronic periodontal disease (24-32 sites per individual). Subgingival plaque samples were tested for the presence of Porphyromonas gingivalis, Actinobacillus actinomycetemcomitans, Tannerella forsythensis and Treponema denticola using RNA probes. RESULTS Stepwise multiple linear regression analysis revealed a significant impact of the number of sites with visible plaque index >1 after hygienic phase on the bleeding tendency of a subject at month 6 (p<0.01). Furthermore, an association could be demonstrated between the number of residual pockets (PD>3 mm) 6 months after therapy and the number of bleeding sites and suppurating sites after hygienic phase (p=0.016). Six weeks after therapy, the mean total bacterial loads had a significant impact on the bleeding tendency of a subject at month 6 (p<0.01). Although the average numbers of sites with persisting P. gingivalis, A. actinomycetemcomitans, T. forsythensis and T. denticola seemed to be very similar 6 weeks and 6 months after therapy, large variations were noted between subjects, and therefore the microbiological status of a subject at week 6 could not predict the status at month 6. CONCLUSIONS The present study showed a limited potential of microbiological tests, performed after hygienic phase or shortly after non-surgical periodontal therapy, to predict the clinical outcome 6 months later, but confirmed the importance of an establishment of perfect oral hygiene before non-surgical therapy.
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Affiliation(s)
- P F Brochut
- School of Dental Medicine, University of Geneva, CH-1211 Geneva 4, Switzerland.
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Pătraşcu T, Doran H, Beluşică L, Marin I, Muşat O, Crihană V, Radu C. [Small bowel tumors -- peculiarities of diagnosis and evolution]. Chirurgia (Bucur) 2002; 97:133-8. [PMID: 12731223] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
The authors analyze 13 cases of small bowel tumors. There are emphasized the difficulties of diagnosis, which is rarely established before the laparotomy. In the same time, clinical features are few and operations are often performed too late, in emergency, due to tumors complications (perforation, bleeding, occlusion). There are also presented new etiopathogenic hypothesis, recently mentioned in literature. Surgical treatment is followed by many post-operative complications. Five-years survival is low, under 40% of patients.
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Affiliation(s)
- Tr Pătraşcu
- Clinica de Chirurgie Prof. I. Juvara, Spitalul Clinic Dr. I. Cantacuzino Str. I. Movilă, nr. 5-7, sect. 2, Bucureşti
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Relkin BP, Molle D, Marin I. Non-covalent binding of benzaldehyde to beta-lactoglobulin: characterisation by spectrofluorimetry and electrospray ionisation mass-spectrometry. J DAIRY RES 2001; 68:151-5. [PMID: 11289266 DOI: 10.1017/s0022029900004684] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
β-Lactoglobulin (β-lg), which is found in the milk of several mammal species, is
the most abundant protein in bovine whey (McKenzie, 1971). The interaction
properties of β-lg with a large variety of small hydrophobic ligands have been
extensively studied (Sawyer et al. 1998). β-Lg belongs to the super-family of
hydrophobic molecule transporters called the lipocalins, which characteristically
bind hydrophobic ligands inside a central calyx (Godovac-Zimmermann, 1988; Perez
et al. 1989; Brownlow et al. 1997; Wu et al. 1997; Qin et al. 1998).At present, whey protein concentrates containing a high percentage of β-lg are
commercially available in a very large quantity, but most of the processes used in
milk technology involve heat-treatments that are known to affect the initial
conformational state of β-lg. Such conformational changes have consequences for
both the physicochemical and functional properties in food systems, including a
decrease in the availability of lysine, due to Maillard reactions (Léonil et al. 1997) and
a decrease in the affinity constant for binding to retinol (Laligant et al. 1991) and to
flavour compounds (O'Neil & Kinsella, 1988). In the field of protein-volatile
compound interactions, we have recently reported a significant enhancement of
foaming properties of β-lg solutions (50 mM-NaCl, pH 6) in the presence of aroma
compounds such as isoamyl acetate (Marin & Relkin, 1999), benzaldehyde (BZA;
Marin & Relkin, 2000) and vanillin (Relkin & Vermersh, 2000). The observed increase
in foaming properties of β-lg was postulated to be due to formation of surface active
complexes between β-lg and aroma compounds.In the present work we have investigated the interaction between a β-lg
concentrate (prepared by ultra-diafiltration on an industrial scale) and BZA;
particularly, evidence was sought for the presence of covalently bound monomers,
dimers and lactolated monomers.
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Affiliation(s)
- B P Relkin
- Ecole Nationale Supérieure des Industries Alimentaires, Departement Science de l'Aliment, Laboratoire de Biophysique des Matériaux Alimentaires, Massy, France.
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Doran H, Pătraşcu T, Păcescu E, Marin I, Radu C. [Acute abdomen and diabetic patients--difficulties of diagnosis and therapeutical decision]. Chirurgia (Bucur) 2001; 96:81-4. [PMID: 12731170] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
We present a retrospective study based on 50 diabetic patients with acute abdominal diseases. Usually, clinical features were not typical, without defining signs of acute abdomen, despite frequent severe anatomo-pathological forms (6 of 12 acute appendicitis were gangrenous, with generalised or localised peritonitis; 15 of 22 acute colecystitis were gangrenous). In diabetic patients, with metabolic disorders and cetoacidosis, positive diagnosis and the decision of laparotomy are difficult problems, often delated, with a negative influence on the evolutions and prognosis of these patients.
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Affiliation(s)
- H Doran
- Clinica de Chirurgie Prof. I. Juvara, Spitalul Clinic Dr. I. Cantacuzino
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López-Archilla A, Marin I, Amils R. Microbial Community Composition and Ecology of an Acidic Aquatic Environment: The Tinto River, Spain. Microb Ecol 2001; 41:20-35. [PMID: 11252161 DOI: 10.1007/s002480000044] [Citation(s) in RCA: 104] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/1999] [Accepted: 04/12/2000] [Indexed: 05/23/2023]
Abstract
We studied the correlation between physicochemical and biological characteristics of an acidic river, the Tinto River, in Southwestern Spain. The Tinto River is an extreme environment characterized by its low pH (mean of 2.2) and high concentrations of heavy metals (Fe 2.3 g/L, Zn 0.22 g/L, Cu 0.11 g/L). These extreme conditions are the product of the metabolic activity of chemolithotrophic microorganisms, including iron- and sulfur-oxidizing bacteria, that can be found in high concentrations in its waters. The food chain in the river is very constrained and exclusively microbial. Primary productivity in the Tinto River is the sum of photosynthetic and chemolithotrophic activity. Heterotrophic bacteria and fungi are the major decomposers and protists are the major predators. A correlation analysis including the physicochemical and biological variables suggested a close relationship between the acidic pH values and abundance of both chemolithotrophic bacteria and filamentous fungi. Chemolithotrophic bacteria correlated with the heavy metals found in the river. A principal component analysis of the biotic and abiotic variables suggested that the Tinto River ecosystem can be described as a function of three main groups of variables: pH values, metal concentrations, and biological productivity.
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Affiliation(s)
- A.I. López-Archilla
- Centro de Biología Molecular, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
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Salmaso D, Marin I, Mazzucato F. [Evaluation of the adherence to nursing care protocols in a district]. Assist Inferm Ric 2000; 19:37-41. [PMID: 10983040] [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: 02/17/2023]
Abstract
An experience of construction and implementation of nursing care protocols and procedures for district nurses is described. A course was offered to all the district nurses, where the indications for the nursing care of some common patients' problems (pressure sores management, mobilization of the stroke patient, the management of patients in pain; the nursing care to stoma patients etc.) were presented. After having compared their work habits with the indications derived from the literature, the nurses were asked to produce protocols and procedures for the problems addressed during the course. The protocols were revised by experts and formally adopted by the responsible of the District, printed in a booklet and mailed with an official letter, to all the district nurses. After two years from the mailing, the knowledge of the nurses (44) on the areas covered by the guidelines was assessed with a multiple choice questionnaire. The level of knowledge varied from 100% of correct answers for the meatal care before catheterization, to the 23% of correct answers on how to remove the needle from a port-a-cath system. The level of knowledge was dishomogenous not only across nurses but also across subjects. In fact low level of correct answers were obtained also for frequently encountered problems, such as patients with pressure sores. The possible causes of the failure of the implementation of the guidelines are discussed.
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Affiliation(s)
- D Salmaso
- D.D.S.I. Responsabile Servizio Infermieristico Territoriale, Padova
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Marin I, Sappington J, Kerouac MR, Thornhill CM. A discussion of the value of interactive technology for remote supervision, telemedicine, and marketing by managed care providers. Healthc Inf Manage 1998; 11:45-56. [PMID: 10167388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- I Marin
- Emblematics Corporation, USA
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Perard M, Guillibert E, Marin I. [Communication in the patient care team about palliative situations' results of a survey at the Laennec Hospital, Paris]. Ann Med Psychol (Paris) 1995; 153:542-6. [PMID: 8561402] [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: 01/31/2023]
Abstract
The authors report results from a sample survey in a university hospital in connection with the aspects of communication in medical team about paliative situations. The questionnaire, made from a paliative care group, consults the usual practices and during crisis just as patient is dying, in a curative medical care. Hospital is not a place to die. Difficulty in survey are probably in keeping with individual and collective defences opposite to dying patient.
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Affiliation(s)
- M Perard
- Service de Psychiatrie, Hôpital Laënnec, Paris
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Gaju N, Pavón V, Marin I, Esteve I, Guerrero R, Amils R. Chromosome map of the phototrophic anoxygenic bacteriumChromatium vinosum. FEMS Microbiol Lett 1995. [DOI: 10.1111/j.1574-6968.1995.tb07425.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Souilamas R, Riquet M, Le Pimpec Barthes F, Debrosse D, Manac'h D, Marin I, Debesse B. [Tuberculous adenopathies of the mediastinum: surgical experience in adults]. Rev Pneumol Clin 1995; 51:276-278. [PMID: 8745752] [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: 05/22/2023]
Abstract
Fifty eight patients were treated for mediastinal tuberculous adenopathies in the thoracic surgery department from 1986 to 1992. Surgery was diagnostic in 49: mediastinoscopy n = 42, left anterior mediastinotomy n = 3, thoracotomy n = 3 and video assisted surgery n = 1. Surgery was in view of cure in 9: bronchial fistula despite medical treatment n = 6, recurrence under medical treatment n = 3. Mediastinal tuberculous adenopathies rarely complicate in adults. Surgical treatment is quickly effective in prolonging and complicating cases under medical treatment and also probably diminishes the risk of bronchial and pulmonary sequellaes.
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Affiliation(s)
- R Souilamas
- Service de Chirurgie Thoracique, Hôpital Laennec, Paris
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Abstract
A 51-year-old man underwent pleuroscopy for radiologic pleural abnormalities. Pathologic examination of pleural and lung biopsy specimens concluded on hyalinized pleural plaques associated with mild asbestosis. Transmission electron microscopy analysis showed significant retention of tremolite asbestos fibers. The absence of any occupational exposure to asbestos and the existence of geologic deposits of tremolite in the Kabul area of Afghanistan suggest an environmental exposure during the patient's childhood spent in this region.
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Affiliation(s)
- C Voisin
- INSERM Unité 139, CH1 Créteil, France
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Manac'h D, Riquet M, Lepimpec-Barthes F, Debrosse D, Marin I, Debesse B. [Non-small-cell bronchopulmonary carcinoma without adenopathy. Value of mediastinal lymph node excisions]. Presse Med 1994; 23:493. [PMID: 8022734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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Sarău M, Topciu V, Marin I, Mihăilescu R. [The treatment of laryngeal papillomas with a combined therapy: antiviral and immunostimulating]. Bacteriol Virusol Parazitol Epidemiol 1993; 38:82-6. [PMID: 8173218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Marin I, Labrador M, Fontdevila A. The evolutionary history of Drosophila buzzatii. XXIII. High content of nonsatellite repetitive DNA in D. buzzatii and in its sibling D. koepferae. Genome 1992; 35:967-74. [PMID: 1473728 DOI: 10.1139/g92-148] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The frequency and types of repetitive nonsatellite DNA of two sibling species of the repleta group of Drosophila, D. buzzatii, and D. koepferae have been determined. For each species, the analysis is based on a sample of more than 100 clones (400 kb) obtained from genomic DNA. A theoretical model has been developed to correct for the presence of a mixture of repetitive and unique DNA in these clones. After correction, a high content of repetitive DNA has been demonstrated for both species (D. buzzatii, 19-26%; D. koepferae, 27-32%). The repetitive sequences have been classified according to their hybridization pattern when used as probes against genomic DNA and by their in situ hybridization signals on polytene chromosomes. Data suggest that the main nonsatellite component of these species is simpler and more repetitive than that of D. melanogaster, pointing to a wide variability in content and class size distribution of repetitive DNA among Drosophila species.
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Affiliation(s)
- I Marin
- Departamente de Genética i Microbiología, Universitat Autónoma de Barcelona, Bellaterra, Spain
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Manzaneque L, Marin I, García-Bragado F, Beiztegui A, Dastis C, Sánchez-Matas P. Osteoarticular tuberculosis of the symphysis pubis presenting as a hypogastric cystic mass in a woman with primary Sjögren's syndrome. Br J Rheumatol 1992; 31:495-6. [PMID: 1628172 DOI: 10.1093/rheumatology/31.7.495] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A 79-year-old woman with primary Sjögren's syndrome and immune thrombocytopenia presented with a hypogastric cystic mass. Twenty-three months previously she received a 7-month course of prednisone at moderate doses to control the thrombocytopenia. A computed tomography showed a cystic mass, destruction of the left pubis with involvement of the symphysis and erosion of the right pubis. The cystic mass was surgically removed. Epithelioid granulomata were found on pathological examination and Mycobacterium tuberculosis was grown in Löwenstein medium. This is the first reported case of osteoarticular tuberculosis with such a presentation and only the second localized to the pubis.
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Affiliation(s)
- L Manzaneque
- Internal Medicine Service, Hospital Universitario Nuestra Señora de Valme, Sevilla, Spain
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Topciu V, Sarău M, Marin I, Stanciu N, Mihăilescu R. [The immunochemical therapy of papillomavirus infections]. Rev Roum Virol 1992; 43:195-9. [PMID: 1339208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- V Topciu
- Université de Médecine et Pharmacie, Timişoara, Roumanie
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