126 results on '"Vesa S"'
Search Results
52. Continuous Mobile Communication with Acoustic Co-Location Detection
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Albrecht, R., Vesa, S., Virolainen, J., Mutanen, J., and Tapio Lokki
53. Detection of Room Reflections from a Binaural Room Impulse Response
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Vesa, S. and Tapio Lokki
54. Predictors of 1-year postoperative mortality in radical colon cancer surgery
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Pop, M. G., Fit, A. M., Vesa, S. C., Bartos, A., Bartos, D. M., Adrian-Gabriel Corpadean, Puia, C., Al-Hajjar, N., and Cornel, I.
55. The ankle-brachial index-a classification of the patient education websites
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Crişan, S., Vesa, S., Elena Buzdugan, Donca, V., Ciovicescu, F., Pestrea, C., Niţǎ, T., and Crişan, I. M.
56. GSTM1, GSTT1 and GSTP1 Genetic Variants in Multiple Urologic Cancers
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Chirilã, D. N., Popp, R., Vesa, S., Bãlãcescu, O., Coman, I., Constantea, N. A., and Constantin Ciuce
57. Chronic thrombotic scarring in patients with acute deep venous thrombosis of the lower limbs
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Crişan S, Vesa S, Catalin Pestrea, Herghea D, Vornicescu D, Chirilă M, and Im, Crişan
58. Deep vein thrombosis--online methods of patient education
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Crişan, D., Crişan, S., Buzdugan, E., Vesa, S., and Catalin Pestrea
59. Kirjastoalan koulutus workshop Informaatiotutkimuksen päivillä 2014
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Olli Mäkinen, Jarmo Saarti, Sami Serola, and Vesa Suominen
- Subjects
Bibliography. Library science. Information resources - Abstract
Suomen kirjastoseuran Koulutus- ja tutkimustyöryhmä järjesti Oulussa marraskuussa pidettyjen Informaatiotutkimuksen päivien yhteydessä työpajan, jossa pohdittiin kirjastoalan koulutuksen kysymyksiä.
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- 2014
60. Kirjastopolitiikka ja mahdollisia käsityksiämme kirjastosta
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Vesa Suominen
- Subjects
Bibliography. Library science. Information resources - Published
- 2016
61. Untersuchungen zu den inner‐ und zwischenartlichen Beziehungen bei Bakterienhämolysinen
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Marica, D., primary, Vasiu, C., additional, Vesa, S., additional, and Marica, C., additional
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- 1975
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62. Rajoittunut kirjastokäsitys – rajoittunut yhteiskuntakäsitys: Mahdolliset käsityksemme kirjastosta ja poliittinen teoria ja filosofia?
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Vesa Suominen
- Subjects
Bibliography. Library science. Information resources - Published
- 2014
63. Automatic Estimation of Reverberation Time from Binaural Signals
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Vesa, S., primary and Harma, A., additional
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64. Kiistakirjoitus kirjastotieteen ja informatiikan määritelmäluonnoksen johdosta
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Vesa Suominen
- Subjects
Bibliography. Library science. Information resources - Published
- 2008
65. Onko userismille vaihtoehtoa, ja onko vaihtoehdoilla tulevaisuutta?
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Vesa Suominen
- Subjects
Bibliography. Library science. Information resources - Published
- 2008
66. Kahden kulttuurin rajalla: ehdotus dokumentti- ja käyttäjälähtöisen tiedonjärjestämisen yhtenäismalliksi
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Jarmo Saarti and Vesa Suominen
- Subjects
Bibliography. Library science. Information resources - Published
- 2012
67. Kirjastokäsitykset, kirjastokäytäntö sekä kirjasto-tutkimus ja sen mahdollinen käytäntö
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Vesa Suominen
- Subjects
Bibliography. Library science. Information resources - Published
- 2010
68. Elämää semiosfäärissä
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Vesa Suominen
- Subjects
Bibliography. Library science. Information resources - Published
- 2008
69. The effect of UV light on division capacity of Helianthus mollis L. protoplasts
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Alibert Gilbert, Rakosy-Tican Lenuюa, and vesa Simona
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Botany ,QK1-989 - Published
- 2005
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70. 5PSQ-023 The importance of the evaluation of amiodarone’s plasmatic concentration in patients with atrial fibrillation
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Neag, F, Neag, MA, Muntean, DM, Nacu, A, Farcas, A, Vesa, S, Bocsan, C, Catinean, A, and Buzoianu, AD
- Abstract
BackgroundAtrial fibrillation (AF) is one of the most common sustained cardiac arrhythmia. It is associated with significant morbidity, mortality and poor quality of life. This is the reason why it is very important to closely follow its treatment. Amiodarone is one of the most frequently used antiarrhythmic drugs in patients with AF both in prophylaxis and treatment. However, the treatment with this drug results in high healthcare resource use and costs due to its poor safety profile.PurposeThe objective of this study was to assess the plasmatic concentration of amiodarone in patients with AF and also to identify possible factors that could influence it. The results were correlated with used doses, with concomitantly administered drugs, renal and liver function.Material and methodsA prospective observational study was conducted in 27 consecutive patients treated with amiodarone from May to July 2017 in a Clinical University Hospital. The patients included met our inclusion criteria. HPLC-MS was the device used to determine the plasma concentration of amiodarone.ResultsThe mean age of those 27 included patients was 65/6±11 years, 44.4% females. The used doses were 200 mg or 400 mg/day. In our patients, plasmatic concentration was given in a therapeutic interval (500–2,500 ng/ml) to 51.8%. In the patients with lower plasmatic concentrations of amiodarone, the drugs associated in the therapeutic plan belonged to: diuretics (furosemide), beta-blockers, statins, antiplatelets (clopidogrel), fluoroquinolones (ciprofloxacine) and non-steroidal anti-inflammatory drugs. It was observed that there was a statistically significant difference between the plasmatic concentrations of amiodarone in patients treated with furosemide vs patients treated concomitantly with other drugs. The interactions between other mentioned drugs and amiodarone were not registered. It was observed that an increase in transaminases or creatinine is correlated with an increase in amiodarone’s plasmatic concentration.Conclusion48.2% of the patients with AF under chronic treatment with amiodarone had the plasmatic concentration of amiodarone out of the therapeutic range. We can report an underuse of amiodarone for these patients. It was found that there was a significant interaction between furosemide and amiodarone. In order to confirm this interaction, we need to continue the research on a larger sample.References and/or AcknowledgementsThanks to all the collaborators.No conflict of interest
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- 2018
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71. Stalinin viiksien varjossa
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Vesa Suominen
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History (General) and history of Europe ,History (General) ,D1-2009 - Published
- 2001
72. Informaatiotyötä etsimässä
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Vesa Suominen
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Bibliography. Library science. Information resources - Published
- 2008
73. Kun kirjastonhoitajista tuli johtamiskonsultteja
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Vesa Suominen
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Bibliography. Library science. Information resources - Published
- 2008
74. Experience With Polymer Thick Film Technology
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Vesa Sortti, Raimo Hulkkonen, and Eero Jarvinen
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Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Published
- 1983
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75. A Potential Indicator for Assessing Patient Blood Management Standard Implementation.
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Kazamer A, Ilinca R, Vesa S, Lorenzovici L, Stanescu-Spinu II, Ganea I, Greabu M, Miricescu D, Biczo A, and Ionescu D
- Abstract
(1) Background: Patient blood management (PBM) program as a multidisciplinary practice and a standard of care for the anemic surgical patient has an increasingly important role in reducing transfusions and optimizing both clinical outcomes and costs. Documented success of PBM implementation is not sufficient for implementation of recommendations and correct use at hospital level. The primary objective of our study was to define a composite patient blood management process safety index-Safety Index in PBM (SIPBM)-that measures the impact of screening and treating anemic patients on the efficiency and effectiveness of the patient care process undergoing elective surgery. (2) Methods: We conducted a retrospective comparative study in a tertiary hospital by collecting data and analyzing the Safety Index in PBM (SIPBM) in patients undergoing major elective surgical procedures. (3) Results: The percentage of patients from the total of 354 patients (178 in 2019 and 176 in 2022) included in the study who benefited from preoperative iron treatment increased in 2022 compared to 2019 from 27.40% to 36.71%. The median value of the SIPBM was 1.00 in both periods analyzed, although there is a significant difference between the two periods ( p < 0.005), in favor of 2022. (4) Conclusions: Measuring the effectiveness of PBM implementation and providing ongoing feedback through the Safety Index in PBM (SIPBM) increases the degree to which opportunities to improve the PBM process are identified. The study represents a first step for future actions and baselines to develop tools to measure the safety and impact of the patient blood management process in the surgical field.
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- 2023
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76. The Effect of Platelet-Rich Plasma Injection on Short Term Vocal Outcomes Following Phonosurgery-A Pilot Study.
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Ujvary LP, Chirilă M, Țiple C, Maniu AA, Pop SS, Blebea CM, Vesa S, and Cosgarea M
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- Humans, Male, Pilot Projects, Prospective Studies, Quality of Life, Treatment Outcome, Vocal Cords surgery, Voice Quality, Platelet-Rich Plasma, Voice Training
- Abstract
Background and Objectives: The efficiency and optimal voice rest period following phonosurgery remains debatable. Platelet-rich plasma (PRP) is a safe and cheap alternative to many bioactive agents being studied on animal models, and is already in use in many medical areas. We investigate the short-term effects of PRP and voice rest on voice outcomes following phonosurgery as an alternative to voice rest alone. Materials and Methods: A prospective single-blinded pilot study was conducted. Sixteen patients with a diagnosis of vocal fold cyst and polyps were included, forming equal groups (PRP and voice rest vs. voice rest alone). Voice analysis was carried out on the preoperative day, day three, and week three following surgery. The measured parameters were fundamental frequency (F0), noise-signal ratio (NSR), harmonic poverty (HP), attack alteration (AL), pitch instability (PI), and amplitude instability (AI).VHI(Voice Handicap Index)-30 questionnaires were carried out before surgery and three weeks following surgery to assess the impact of subjective voice change on quality of life. PRP was obtained using commercial kits with separator gel. Results: An average 3.68-fold increase in platelets was obtained with PRP. No side effects were noted after injection. All voice parameters improved on day three and week three following surgery. Statistical significance was noted only in the fundamental frequency of male patients ( p = 0.048) in favor of the PRP-voice rest group. In addition, the VHI- 30 questionnaire results between preoperative and postoperative assessments showed statistically significant differences in total VHI score ( p = 0.02) as well as the physical ( p = 0.05) and emotional ( p = 0.02) scale in favor of the PRP-voice rest group. Conclusions: PRP presents short term safety in patients who undergo phonosurgery, although long-term outcomes are unknown. PRP and voice rest are superior to voice rest alone when considering subjective assessment of the voice. When analyzing acoustic parameters, PRP and voice rest are not superior to voice rest alone.
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- 2022
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77. Could FeNO Predict Asthma in Patients with House Dust Mites Allergic Rhinitis?
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Muntean IA, Bocsan IC, Vesa S, Miron N, Nedelea I, Buzoianu AD, and Deleanu D
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- Adult, Animals, Asthma etiology, Asthma immunology, Biomarkers analysis, Female, Humans, Male, Rhinitis, Allergic, Perennial complications, Risk Factors, Asthma diagnosis, Nitric Oxide analysis, Pyroglyphidae immunology, Rhinitis, Allergic, Perennial immunology
- Abstract
Background and Objectives : The evolution of allergic rhinitis to asthma is a part of "atopic march". The aim of this study was to analyze possible predictive markers for asthma occurrence in patients with allergic rhinitis to house dust mites (HDM). Materials and Methods : Fifty-eight patients with persistent allergic rhinitis (PAR) were included. The clinical, biological evaluation and fractionated exhaled nitric oxide (FeNO) measurement were performed at enrolment. The patients were clinically evaluated after one year to determine asthma occurrence. Results: The severity of rhinitis symptoms, levels of total immunoglobulin E (IgE), ICAM-1, VCAM-1, E-selectin and IL-6, but not IL-8 and TNF-α were higher in patients with allergic rhinitis who developed asthma compared to non-asthmatics, but the differences were not significant to considered them as predictive factors for asthma occurrence. The risk of asthma was independently influenced by patients aged over 30 years ((OR-3.74; CI95% 0.86-16.31; p = 0.07), a duration of allergic rhinitis over 12 months ((OR-4.20; CI95% 0.88-20; p = 0.07) and a basal FeNO over 28 parts per billion (pbb) ((OR-18.68; CI95% 3.79-92.05; p < 0.001). Conclusion : Clinical and biological parameters may predict asthma occurrence in patients with persistent allergic rhinitis to HDM. Adult patients with a longer duration of rhinitis symptoms and a high level of FeNO have a greater risk to develop asthma.
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- 2020
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78. Role of pentraxin-3 in risk assessment of patients with metabolic syndrome.
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Zlibut A, Bocsan IC, Pop RM, Vesa SC, Bheecarry K, Revnic R, Cojan-Minzat B, Lupu S, Buzoianu AD, and Agoston-Coldea L
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- Biomarkers metabolism, Body Mass Index, Female, Humans, Inflammation metabolism, Male, Middle Aged, Osteoprotegerin metabolism, Prospective Studies, ROC Curve, Risk Assessment methods, Risk Factors, Tumor Necrosis Factor-alpha metabolism, Waist Circumference physiology, C-Reactive Protein metabolism, Metabolic Syndrome metabolism, Serum Amyloid P-Component metabolism
- Abstract
Background: Inflammation plays a major role in the development of metabolic syndrome (MetS) and its progression. Recent studies have shown that pentraxin-3 (PTX-3), osteoprogerin (OPG), and tumor necrosis factor-alpha (TNF-α) are key factors in MetS pathophysiology, but evidence for endorsing their clinical use is currently unclear and insufficient., Aim: The study aimed to evaluate the association between the inflammatory biomarkers' levels and the severity of MetS., Methods: The study was observational, transversal, prospective, cohort, and analytical type. We enrolled 80 patients (M:F = 1, mean age = 55 ± 10.77 years) who met MetS criteria. The study protocol included: medical history, physical examination, 6-min walk test distance (6MWTD), biochemical tests, electrocardiogram, echocardiography, and carotid ultrasonography. We also performed plasmatic measurement of PTX-3, OPG, and TNF-α, in addition to standard biochemical tests., Results: Subjects with severe MetS had higher values of body mass index (BMI) and waist circumference ( p < 0.001, p = 0.001). PTX-3 levels were significantly higher in patients with severe MetS ( p = 0.03) and the values were not influenced by age or gender. OPG positively correlated with BMI ( r = 0.264, p = 0.018). 6MWTD was lower in patients with severe MetS ( p = 0.005), whereas CCA-IMT was higher in this group of patients ( p = 0.005). In addition, the receiver operating characteristic (ROC) curve analysis for PTX-3 identified a cut-off value of 10.7 ng/dl that differentiates between mild and severe MetS [AUC 0.656; sensitivity =47.1% (95% CI = 36.1%-62.3%); specificity = 78.9% (95% CI = 54.4%-93.9%)]., Conclusion: PTX-3 was correlated with the severity of MetS, with other inflammatory parameters and cardiovascular tests. CCA-IMT and 6MWTD are useful in differentiating between mild and severe MetS.
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- 2019
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79. The first nation-wide study revealing epidemiologic data and life quality aspects of psoriasis in Romania.
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Boca AN, Ilies RF, Vesa S, Pop R, Tataru AD, and Buzoianu AD
- Abstract
Psoriasis is a chronic, immune mediated, inflammatory condition, which primarily affects the patient's skin. It is known to associate a variable array of comorbidities such as cardiovascular, metabolic and psychiatric ones, with an important impact on the patients' quality of life. The purpose of this study is to provide a first image of the prevalence, comorbidities, as well as the social impact of psoriasis in Romania. We devised a questionnaire, and with the aid of general practitioners throughout the country, delivered it to patients seeking medical care in their office. The questionnaire assessed demographic criteria as well as patient-related issues. It was completed in the presence of the general practitioner, and clear written instructions for completion were included. After statistical analysis, the resulting data formed the basis of this study. The reported prevalence of psoriasis in Romania is 5.18%. Almost half of the subjects who completed the questionnaire stated they knew somebody affected by the disease, yet almost a third believed it is a contagious condition. Cardiovascular and psychiatric comorbidities, as well as negative impact on social interactions were reported by the subjects in the study. These findings indicate the clear need for better quality of life for patients in a social context and increased awareness of the disease. All these could, in turn, help decrease the rate of psoriasis complications in Romania.
- Published
- 2019
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80. Influence of concomitant medication on plasma concentration of amiodarone in patients with atrial fibrillation - a pilot study.
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Neag MA, Muntean DM, Nacu A, Catinean A, Farcas A, Vesa S, Bocsan C, Vlase L, and Buzoianu AD
- Abstract
Background: Although amiodarone is a drug with many side effects, it is one of the most commonly used drugs in the treatment and prophylaxis of supraventricular and ventricular arrhythmias., Aim: The purpose of this pilot study was to evaluate plasma concentrations of amiodarone in patients with atrial fibrillation (AF) and to identify possible drug-drug interactions between amiodarone and concomitant medications., Method: A prospective observational study was conducted in 27 consecutive patients treated with amiodarone from May to July 2017 in a Clinical University Hospital. The patients included met our inclusion criteria. HPLC-UV was the device used to determine the plasma concentration of amiodarone., Results: Only 51.8% of the patients had amiodarone plasma concentration within therapeutic interval (500-2500 ng/ml). The drugs associated to amiodarone in the therapeutic plan were diuretics, beta blockers, statins, antiplatelets, fluoroquinolones, non-steroidal anti-inflammatory drugs. We observed a statistically significant difference between the plasmatic concentrations of amiodarone in patients treated with furosemide vs. patients concomitantly treated with other drugs. Interactions between other mentioned drugs and amiodarone were not registered. We can report an underuse of amiodarone for more than 50% of the patients. Also, we found a significant interaction between furosemide and amiodarone, most likely through the interaction with MDR., Conclusion: Furosemide may influence the pharmacokinetics of P-gp-interfering drugs. However, the relevance of these findings needs to be confirmed and further research is needed to characterize the interaction between amiodarone and furosemide.
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- 2019
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81. Sea buckthorn extract in the treatment of psoriasis.
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Boca AN, Ilies RF, Saccomanno J, Pop R, Vesa S, Tataru AD, and Buzoianu AD
- Abstract
Psoriasis is one of the most common chronic dermatological conditions, with a strong impact on patients' quality of life. Currently, psoriasis benefits from conventional therapy with a high rate of adverse effects and an increase in non-compliance and self-medication of patients. As such, there is a need to pinpoint low-adverse effects and accessible remedies for this condition. Our single-blind, placebo-controlled study assessed the effect of sea buckthorn extract on psoriasis lesions in previously untreated patients. Our results showed an improvement in Psoriasis Area Severity Index (PASI) scores and in Dermatology Life Quality Index (DLQI) scores when compared to the baseline values, as well as at the 4- and 8-week time marks for the lesions treated with sea buckthorn extract. By contrast, the measurements for the placebo treated lesions showed no alteration at the 4-week mark, and significant worsening at the end of the trial. These findings provide a solid, optimistic base for the in-depth research of sea buckthorn as an adjuvant or a component in psoriasis care protocols.
- Published
- 2019
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82. Evaluation of the pancreatic tumors by transabdominal Shear Wave Elastography: preliminary results of a pilot study.
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Zaro R, Dina L, Pojoga C, Vesa S, and Badea R
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- Adenocarcinoma pathology, Adult, Aged, Case-Control Studies, Female, Humans, Longitudinal Studies, Male, Middle Aged, Neoplasm Staging, Pancreatic Intraductal Neoplasms pathology, Pilot Projects, Prospective Studies, ROC Curve, Reference Values, Sensitivity and Specificity, Tertiary Care Centers, Ultrasonography, Doppler, Color, Adenocarcinoma diagnostic imaging, Elasticity Imaging Techniques methods, Pancreatic Intraductal Neoplasms diagnostic imaging, Pancreatic Neoplasms diagnostic imaging, Pancreatic Neoplasms pathology
- Abstract
Aim: To identify the mean values of Shear Wave Elastography (SWE) in pancreatic neoplasms., Material and Method: This pilot case-control study was conducted in a tertiary care setting and data were collected in a prospective manner. Thirty-three subjects were included and divided into two groups: 18 healthy subjects and 15 patients with pancreatic neoplasm, from which 14 patients were diagnosed with adenocarcinoma and one with intraductal papillary mucinous neoplasia. Inclusion criteria for patients with pancreatic neoplasia were histopathological confirmation obtained by endoscopic ultrasonography (EUS) with fine needle aspiration or surgically and imaging confirmation by computed tomography with contrast enhancement. A number of minimum 5 shear wave velocity (SWV) measurements regarding each segment respectively at the tumoral level was obtained among a series of elastograms., Results: The mean SWV of the pancreas in the control group was 1.21±0.27 m/s. Data regarding the pathological parenchyma indicated an increase of the SWV at the tumoral (cephalic) level corresponding to 1.54±0.32 m/s, with significant statistical difference between the control batch and tumoral group, p=0.02., Conclusions: Transabdominal SWE represents a surrogate but feasible method for differentiation cancer from the normal pancreatic tissue. In a clinical setting, data regarding the stiffness complementary to an ultrasound evaluation could guide high-risk patients for a close-up pancreatic monitoring.
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- 2018
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83. Association of Oral-Health Related Quality of Life and General Health Assessment in Patients with Rheumatoid Arthritis.
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Tristiu R, Vesa S, Dumitru RB, Arweiler NB, Cosgarea RM, Lascu L, Rednic S, Eick S, Sculean A, and Cosgarea R
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- Case-Control Studies, Fatigue epidemiology, Female, Health Status, Humans, Male, Middle Aged, Prospective Studies, Romania epidemiology, Surveys and Questionnaires, Arthritis, Rheumatoid epidemiology, Oral Health, Quality of Life
- Abstract
Purpose: To determine the impact of oral health related quality of life (OHRQoL) on general health in patients suffering from rheumatoid arthritis (RA)., Materials and Methods: Ninety-one patients with RA (mean age 52.82 ± 11 years, 75.82% female, 20.87% smokers) and 30 systemically healthy patients (control) were evaluated for their OHRQoL by means of the Geriatric Oral Health Assessment Index (GOHAI) and the Oral Health Impact Profile (OHIP)-14 questionnaires. Self-perceived RA status was assessed using the Routine Assessment of Patient Index Data 3 (RAPID3)., Results: The mean SC-GOHAI score was 3.69 ± 2.47 for RA subjects and 1.36 ± 2.69 in the control group. Statistically significant differences were seen between RA and control groups (p < 0.05). RA patients with and without periodontitis (PA) exhibited similar SC-GOHAI (Simple Count GOHAI) scores (p = 0.980). No statistically significant differences were observed between any of the groups, either for the OHIP 14-extent or for the OHIP 14-prevalence. RAPID3 scores showed that the majority of the RA patients (65.93%) had high disease severity (RAPID3 >12, mean RAPID3 score 14.39 ± 5.14). Statistically significantly higher values were recorded for general health assessment (PTGE, p = 0.009) and fatigue (FT, p = 0.004) in RA with PA as compared to those without. SC-GOHAI with values between 5 and 8 was statistically significantly associated with high severity health impairment (RAPID3 >12, p = 0.014, OR: 8.64)., Conclusion: Within their limits, the present findings indicate that: a) moderate OHRQoL as assessed by GOHAI may contribute to high severity impairment of health in RA patients, and b) the GOHAI questionnaire may represent a more adequate tool than OHIP-14 for assessing OHRQoL in patients suffering from RA.
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- 2018
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84. Serum metabolomics can predict the outcome of first systematic transrectal prostate biopsy in patients with PSA <10 ng/ml.
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Andras I, Crisan N, Vesa S, Rahota R, Romanciuc F, Lazar A, Socaciu C, Matei DV, de Cobelli O, Bocsan IS, and Coman RT
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- Aged, Biopsy, Diagnosis, Differential, Humans, Male, Middle Aged, Prognosis, ROC Curve, Metabolome, Metabolomics methods, Prostate-Specific Antigen blood, Prostatic Neoplasms blood, Prostatic Neoplasms diagnosis
- Abstract
Aim: To assess the predictive value of metabolomic analysis for the presence of prostate cancer (PCa) at first systematic biopsy., Patients & Methods: Ninety serum samples from patients with suspicion for PCa were included. Targeted and nontargeted metabolomic analysis was performed., Results: Six metabolites were combined into a predictive score. A cutoff value of 0.528 for the metabolomic score showed a good accuracy for the prediction of PCa at biopsy (Area under the curve (AUC): 0.779; p < 0.001). These results were validated in a subgroup of patients, showing similar accuracy (p = 0.1). For patients with prostate specific antigen (PSA) less than 10 ng/ml, the score showed a Se 80.95%, Sp 64.52% for the detection of PCa at biopsy., Conclusion: Metabolomic analysis can predict the outcome of the first systematic biopsy.
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- 2017
- Full Text
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85. Melanoma knowledge, risk factors awareness and skin health behaviours: a populational-based study in Central Romania.
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Ungureanu L, Senilă S, Vornicescu D, Vesa SC, Ionut R, and Cosgarea R
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- Adolescent, Adult, Female, Humans, Male, Middle Aged, Risk Factors, Romania, Young Adult, Awareness, Health Behavior, Melanoma epidemiology
- Published
- 2016
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86. The role of complement system in adipose tissue-related inflammation.
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Vlaicu SI, Tatomir A, Boodhoo D, Vesa S, Mircea PA, and Rus H
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- Animals, Complement Activation, Energy Metabolism, Humans, Lipid Metabolism, Adipose Tissue immunology, Complement System Proteins metabolism, Inflammation immunology, Insulin Resistance, Obesity immunology
- Abstract
As the common factor linking adipose tissue to the metabolic context of obesity, insulin resistance and atherosclerosis are associated with a low-grade chronic inflammatory status, to which the complement system is an important contributor. Adipose tissue synthesizes complement proteins and is a target of complement activation. C3a-desArg/acylation-stimulating protein stimulates lipogenesis and affects lipid metabolism. The C3a receptor and C5aR are involved in the development of adipocytes' insulin resistance through macrophage infiltration and the activation of adipose tissue. The terminal complement pathway has been found to be instrumental in promoting hyperglycemia-associated tissue damage, which is characteristic of the major vascular complications of diabetes mellitus and diabetic ketoacidosis. As a mediator of the effects of the terminal complement complex C5b-9, RGC-32 has an impact on energy expenditure as well as lipid and glucose metabolic homeostasis. All of this evidence, taken together, indicates an important role for complement activation in metabolic diseases.
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- 2016
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87. IL12B (p40) Gene Polymorphisms Contribute to Ustekinumab Response Prediction in Psoriasis.
- Author
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Galluzzo M, Boca AN, Botti E, Potenza C, Malara G, Malagoli P, Vesa S, Chimenti S, Buzoianu AD, Talamonti M, and Costanzo A
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- Adult, Aged, Female, Genotype, Humans, Interleukin-6 genetics, Male, Middle Aged, Polymorphism, Single Nucleotide, Receptors, Interleukin genetics, Retrospective Studies, Severity of Illness Index, Treatment Outcome, Young Adult, Dermatologic Agents therapeutic use, HLA-C Antigens genetics, Interleukin-12 Subunit p40 genetics, Psoriasis drug therapy, Psoriasis genetics, Ustekinumab therapeutic use
- Abstract
Background: Psoriasis is characterized by multiple genetic variations. Some of these variations, such as the presence of HLA-Cw6 or TNFAIP3 single-nucleotide polymorphisms (SNPs), have been correlated to the response to biologic treatments., Objective: The aim of our study was to evaluate the effects of IL12B and IL6 SNPs on the response to ustekinumab., Methods: We retrospectively analyzed the genotypes of 64 patients who had been treated with ustekinumab for up to 1 year. Efficacy data were evaluated using 'intention to treat-last observation carried forward' analysis., Results: We confirmed the positive role of HLA-Cw6 as a predictor of the response to ustekinumab and discovered that presence of the GG genotype on the IL12B rs6887695 SNP and absence of the AA genotype on the IL12B rs3212227 SNP significantly increase the probability of therapeutic success in HLA-Cw6 positive patients., Conclusions: The availability of pharmacogenetic data will influence therapeutic decisions in the clinical management of psoriatic patients., (© 2015 S. Karger AG, Basel.)
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- 2016
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88. The influence of total intravenous anaesthesia and isoflurane anaesthesia on plasma interleukin-6 and interleukin-10 concentrations after colorectal surgery for cancer: a randomised controlled trial.
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Margarit SC, Vasian HN, Balla E, Vesa S, and Ionescu DC
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- Aged, Biomarkers blood, Colorectal Neoplasms blood, Colorectal Neoplasms drug therapy, Colorectal Neoplasms surgery, Female, Humans, Male, Middle Aged, Postoperative Period, Prospective Studies, Anesthesia, Intravenous, Anesthetics, Inhalation administration & dosage, Colorectal Surgery trends, Interleukin-10 blood, Interleukin-6 blood, Isoflurane administration & dosage
- Abstract
Background: Although it has been demonstrated that both surgery and anaesthesia induce immune suppression, it remains unclear whether there are differences between anaesthetic techniques in inducing immune suppression in cancer patients., Objective: The aim of this present study was to compare the effects of total intravenous anaesthesia (TIVA) and isoflurane anaesthesia on plasma concentrations of interleukins IL-6 and IL-10 in patients undergoing surgery for colorectal cancer., Design: A randomised, controlled, open-label study., Setting: University hospital., Patients: Seventy patients undergoing open colorectal surgery with tumour resection were randomised prospectively into one of two groups; 60 patients completed the study., Interventions: Group 1 (n = 30) received TIVA and group 2 (n = 30) received isoflurane. Propofol infusion rate and inspired concentration of isoflurane were titrated to achieve bispectral index values of 40 to 55., Main Outcome Measures: Plasma concentrations of IL-6 and IL-10 were measured preoperatively, before surgical incision and at 2 and 24 h postoperatively. The area under the curve (AUC) for IL-6 and IL-10 over 24 h and plasma interleukin concentrations at each time point were compared between the groups., Results: Median (range) AUC for IL-6 was 4657 (1219 to 8427) pg h ml in the TIVA group and 5349 (839 to 8126) pg h ml in the isoflurane group. For IL-10, AUC was 1165 (344 to 5258) pg h ml in the TIVA group and 1405 (463 to 8161) pg h ml in the isoflurane group. When comparing interleukin concentrations between study groups at different time intervals, there were no significant differences in plasma concentrations of IL-6 or IL-10. Intragroup comparisons revealed that IL-6 and IL-10 concentrations were significantly increased 2 and 24 h postoperatively in both groups when compared with their baseline values (P < 0.01 and P < 0.01 at 2 and 24 h for the TIVA group and isoflurane group, respectively)., Conclusion: We found no significant differences between the effects of TIVA and isoflurane anaesthesia on plasma concentrations of IL-6 and IL-10 after colorectal cancer surgery during the first 24 h postoperatively. Further studies are needed to determine differences in long-term outcome of these patients., Trial Registration: Clinicaltrials.gov identifier: NCT01902849. The study was registered retrospectively.
- Published
- 2014
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89. GSTM1, GSTT1 and GSTP1 in patients with multiple breast cancers and breast cancer in association with another type of cancer.
- Author
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Chirilă DN, Bălăcescu O, Popp R, Oprea A, Constantea NA, Vesa S, and Ciuce C
- Subjects
- Alleles, Breast Neoplasms diagnosis, Case-Control Studies, Female, Genotype, Humans, Isoleucine, Neoplasms, Multiple Primary diagnosis, Neoplasms, Second Primary diagnosis, Predictive Value of Tests, Risk Factors, Sensitivity and Specificity, Valine, Biomarkers, Tumor genetics, Breast Neoplasms genetics, Glutathione S-Transferase pi genetics, Glutathione Transferase genetics, Neoplasms, Multiple Primary genetics, Neoplasms, Second Primary genetics, Polymorphism, Single Nucleotide
- Abstract
Introduction: breast cancer has the highest incidence in women.Glutathione S-transferases (GSTs) are a large group of enzymes involved in the metabolism of xenobiotics. The members of this gene superfamily are involved in the development of multiple cancers., Objectives: the aim of the study was to see whether the GSTM1, GSTT1 and GSTP1 genetic polymorphisms are risk factors for patients diagnosed with multiple malignancies, of which at least one is located in the breast., Materials and Methods: in the period between 2005 and 2012,of the 520 patients diagnosed with breast cancer, 69 had multiple primitive malignant tumors, of which at least one was localized in the breast. The research on GSTM1, GSTT1 and GSTP1 genotypes consisted of 59 patients diagnosed with multiple breast cancers or with breast cancer in association with another type of cancer, compared with a group of healthy controls., Results: in the subgroup of patients with breast cancer in association with another type of cancer, the GSTM1 null genotype was present in 61.2% of patients, compared to 29% of controls; the subgroup of metachronous breast cancers, the presence of any of the GSTT1 or GSTM1 null genotypes was statistically significantly different from that of controls (65.2%vs. 28.5%); in the subgroup with synchronous cancers, the GSTM1 null genotype was found in 66.6% of patients compared to 9% for the controls, and the presence of any null genotype (GSTM1 and GSTT1) was also statistically significant in the case group., Conclusions: the GSTM1 null genotype is a risk factor for synchronous breast cancers and for breast cancer associated with extramammary cancer; the presence of null genotypes(GSTM1 or GSTT1) is a risk factor for multiple breast cancer(bilateral or synchronous); the GSTT1 null genotype and the heterozygous variant allele (Ile105Val) and homozygous variant allele (Val105Val) of GSTP1 are not risk factors for the cases studied., (Celsius.)
- Published
- 2014
90. Functional redundancy and/or ongoing pseudogenization among F-box protein genes expressed in Arabidopsis male gametophyte.
- Author
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Ikram S, Durandet M, Vesa S, Pereira S, Guerche P, and Bonhomme S
- Subjects
- Arabidopsis genetics, Arabidopsis Proteins genetics, F-Box Proteins genetics, Gene Expression Regulation, Plant, Multigene Family, Pollen genetics, Arabidopsis metabolism, Arabidopsis Proteins metabolism, F-Box Proteins metabolism, Pollen metabolism, Pseudogenes
- Abstract
F-box protein genes family is one of the largest gene families in plants, with almost 700 predicted genes in the model plant Arabidopsis. F-box proteins are key components of the ubiquitin proteasome system that allows targeted protein degradation. Transcriptome analyses indicate that half of these F-box protein genes are found expressed in microspore and/or pollen, i.e., during male gametogenesis. To assess the role of F-box protein genes during this crucial developmental step, we selected 34 F-box protein genes recorded as highly and specifically expressed in pollen and isolated corresponding insertion mutants. We checked the expression level of each selected gene by RT-PCR and confirmed pollen expression for 25 genes, but specific expression for only 10 of the 34 F-box protein genes. In addition, we tested the expression level of selected F-box protein genes in 24 mutant lines and showed that 11 of them were null mutants. Transmission analysis of the mutations to the progeny showed that none of the single mutations was gametophytic lethal. These unaffected transmission efficiencies suggested leaky mutations or functional redundancy among F-box protein genes. Cytological observation of the gametophytes in the mutants confirmed these results. Combinations of mutations in F-box protein genes from the same subfamily did not lead to transmission defect either, further highlighting functional redundancy and/or a high proportion of pseudogenes among these F-box protein genes.
- Published
- 2014
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91. ERCP on a cohort of 2,986 patients with cholelitiasis: a 10-year experience of a single center.
- Author
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Tantau M, Mercea V, Crisan D, Tantau A, Mester G, Vesa S, and Sparchez Z
- Subjects
- Aged, Chi-Square Distribution, Choledocholithiasis diagnostic imaging, Clinical Competence, Common Bile Duct abnormalities, Common Bile Duct diagnostic imaging, Female, Humans, Logistic Models, Male, Middle Aged, Odds Ratio, Postoperative Complications etiology, Recurrence, Risk Factors, Romania, Sphincterotomy, Endoscopic, Time Factors, Treatment Outcome, Cholangiopancreatography, Endoscopic Retrograde adverse effects, Choledocholithiasis surgery, Common Bile Duct surgery
- Abstract
Background & Aims: Endoscopic Retrograde Cholangio-Pancreatography (ERCP) is the standard method of treatment for choledocholithiasis. We evaluated the diagnostic success rate and the outcomes of therapeutic ERCP for bile duct stones, in relation to the anatomical variants., Method: A total of 3,097 consecutive ERCPs were performed in 2,986 patients during a 10-year period (2002-2011) in our endoscopy department. The analysis of the results of therapy was performed in relation to the anatomical variants, patients' age, opacification of the Wirsung duct and recurrent lithiasis., Results: The rate of successful cannulation was 98%. The patient's age and the diameter of the common bile duct were the factors influencing the probability of finding a gallstone: age over 74 years, AUC=0.547 (p<0.001) and a CBD diameter larger than 12 mm (AUC=0.735, p<0.001). The number of cases with opacification of the Wirsung duct, the use of precut papillotomy and the inability of finding a stone significantly decreased with the increasing experience of the operator (p<0.001). The stone removal was unsuccessful in 2.3%. Factors associated independently with unsuccessful extraction were previous surgical sphincteroplasty, stone size and Billroth I anastomosis. Ninety two patients (4.3%) were diagnosed with recurrent lithiasis. Factors associated independently with recurrence were stone size (p=0.002, OR=0.35), dilation of infundibulum (p=0.04, OR=0.13) and the presence of periampullary diverticula (p=0.004, OR=0.28)., Conclusions: The endoscopic treatment of choledocholithiasis is highly effective. It is influenced partly by the experience of the operator. In experienced hands, the success rate is high even in cases of anatomical variants and difficult calculi.
- Published
- 2013
92. Thioredoxin m4 controls photosynthetic alternative electron pathways in Arabidopsis.
- Author
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Courteille A, Vesa S, Sanz-Barrio R, Cazalé AC, Becuwe-Linka N, Farran I, Havaux M, Rey P, and Rumeau D
- Subjects
- Arabidopsis genetics, Arabidopsis physiology, Arabidopsis radiation effects, Arabidopsis Proteins metabolism, Chlorophyll metabolism, Chloroplast Proteins genetics, Chloroplast Proteins metabolism, Chloroplasts metabolism, Electron Transport, Enzyme Activation, Ethylmaleimide pharmacology, Gene Expression Regulation, Enzymologic, Gene Expression Regulation, Plant, Genes, Plant, Light, Mutagenesis, Insertional, NADH Dehydrogenase metabolism, Oxidation-Reduction, Photosynthetic Reaction Center Complex Proteins metabolism, Photosystem I Protein Complex genetics, Plant Leaves genetics, Plant Leaves metabolism, Plant Leaves radiation effects, Plants, Genetically Modified genetics, Plants, Genetically Modified metabolism, Plants, Genetically Modified radiation effects, Plastoquinone metabolism, Recombinant Proteins genetics, Recombinant Proteins metabolism, Thioredoxins genetics, Nicotiana genetics, Nicotiana metabolism, Arabidopsis metabolism, Photosynthesis, Photosystem I Protein Complex metabolism, Thioredoxins metabolism
- Abstract
In addition to the linear electron flow, a cyclic electron flow (CEF) around photosystem I occurs in chloroplasts. In CEF, electrons flow back from the donor site of photosystem I to the plastoquinone pool via two main routes: one that involves the Proton Gradient Regulation5 (PGR5)/PGRL1 complex (PGR) and one that is dependent of the NADH dehydrogenase-like complex. While the importance of CEF in photosynthesis and photoprotection has been clearly established, little is known about its regulation. We worked on the assumption of a redox regulation and surveyed the putative role of chloroplastic thioredoxins (TRX). Using Arabidopsis (Arabidopsis thaliana) mutants lacking different TRX isoforms, we demonstrated in vivo that TRXm4 specifically plays a role in the down-regulation of the NADH dehydrogenase-like complex-dependent plastoquinone reduction pathway. This result was confirmed in tobacco (Nicotiana tabacum) plants overexpressing the TRXm4 orthologous gene. In vitro assays performed with isolated chloroplasts and purified TRXm4 indicated that TRXm4 negatively controls the PGR pathway as well. The physiological significance of this regulation was investigated under steady-state photosynthesis and in the pgr5 mutant background. Lack of TRXm4 reversed the growth phenotype of the pgr5 mutant, but it did not compensate for the impaired photosynthesis and photoinhibition sensitivity. This suggests that the physiological role of TRXm4 occurs in vivo via a mechanism distinct from direct up-regulation of CEF.
- Published
- 2013
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93. Band ligation vs. N-Butyl-2-cyanoacrylate injection in acute gastric variceal bleeding: a prospective follow-up study.
- Author
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Tantau M, Crisan D, Popa D, Vesa S, and Tantau A
- Subjects
- Acute Disease, Aged, Disease-Free Survival, Esophageal and Gastric Varices complications, Female, Follow-Up Studies, Gastrointestinal Hemorrhage etiology, Hemostasis, Endoscopic, Humans, Injections, Ligation methods, Male, Middle Aged, Prospective Studies, Recurrence, Treatment Outcome, Enbucrilate therapeutic use, Esophageal and Gastric Varices therapy, Gastrointestinal Hemorrhage therapy, Sclerotherapy methods, Tissue Adhesives therapeutic use
- Abstract
BACKGROUND. Treatment of gastric varices (GV) implies a number of several difficulties and sometimes entails complications. The best endoscopic success rate was attributed until now to the use of tissue adhesives(N-Butyl-2-Cyanoacrylate) and band ligation. AIM. To assess the therapeutic efficacy and safety of cyanoacrylate injection compared to band ligation in patients with acute GV hemorrhage. MATERIAL AND METHODS. Thirty-seven patients with upper gastrointestinal bleeding from GV were included in the study, treated with cyanoacrylate injection (GVO)-19 patients or band ligations (GVL)-18 patients. They were followed up for overall results, complications and survival rate. RESULTS. The mean age of the study group was 60.22 ± 9.34 years, with a male/female ratio of 21:16. The mean follow-up period was 427.26 ± 214.16 days in the GVO group and 406.21 ± 213.23 days in the GVL group (p = 0.76). Initial hemostasis was achieved in all patients treated with cyanoacrylate and in 88.88% from the GVL group (p = 0.43). Rebleeding occurred in 72.22% of the GVL group and in 31.57% of the GVO patients (p = 0.03). Patients in the GVO group had a significantly larger rebleeding-free period(p = 0.006). No difference was found in survival rates(p = 0.75). The Child Class (p = 0.003 for Class C) and treatment method (p = 0.01) were independently associated with the rate of rebleeding. No differences were found regarding the rate of complications. CONCLUSION. The use of cyanoacrylate in acute GV bleeding had better results when compared with band ligation in terms of controlling the hemorrhage and recurrence of bleeding. The overall survival rate was not influenced by the method used for the treatment of complicated GV.
- Published
- 2013
94. Concomitant acute deep venous thrombosis and superficial thrombophlebitis of the lower limbs.
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Crişan S, Vornicescu D, Crişan D, Pop T, and Vesa S
- Subjects
- Female, Humans, Male, Middle Aged, Reproducibility of Results, Sensitivity and Specificity, Thrombophlebitis complications, Thrombophlebitis diagnostic imaging, Ultrasonography, Venous Thrombosis complications, Venous Thrombosis diagnostic imaging
- Abstract
Introduction: Some patients may have deep venous thrombosis (DVT) and superficial thrombophlebitis (ST) of the lower limbs at the same time., Aims: To analyze the frequency of risk factors for thrombosis (RF), other than thrombophilias, in patients with concomitant DVT and ST., Patients and Methods: Clinical examination, plasma D-dimers and duplex ultrasonography were performed in 88 consecutive patients (mean age 64.9 +/-13.9 years) admitted in Medical Clinic in 2007. Patients with DVT were divided into two groups: A (with ST - 30 subjects, 34.1%) and B (without ST - 58 patients, 65.9%)., Results: Conditions known as RF were the following (Group A versus B): varicose veins (17 vs 21 patients, p=0.11), obesity (12 vs 19, p=0.66), previous venous thromboembolism (8 vs 16, p=0.87), malignancy (4 vs 10, p=0.44), chronic obstructive lung disease (4 vs 7, p=0.56), sepsis (2 vs 3, p=0.56), stroke and chemotherapy (1 vs 2, p=0.73), bed rest more than three days (1 vs 7, p=0.17), major surgery (1 vs 1, p=0.57), family history of DVT (1 vs 0, p=0.57), immobilizing plaster cast (0 vs 1, p=0.57)., Conclusion: One third of patients with DVT had ST. None of those conditions considered as RF for DVT correlated with DVT-ST association.
- Published
- 2011
95. Deep vein thrombosis--online methods of patient education.
- Author
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Crişan D, Crişan S, Buzdugan E, Vesa S, and Pestrea C
- Subjects
- Humans, Ultrasonography, Doppler, Online Systems, Patient Education as Topic, Venous Thrombosis diagnosis, Venous Thrombosis diagnostic imaging
- Abstract
The authors present some of the most important online patient information methods on all aspects of deep vein thrombosis of the lower limbs and, in particular, the diagnosis using Doppler ultrasound (easy-to-understand articles, brochures, guides, patient page, frequently asked questions, illustrations, forums, blogs).
- Published
- 2010
96. The ankle-brachial index-a classification of the patient education websites.
- Author
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Crişan S, Vesa S, Buzdugan E, Donca V, Ciovicescu F, Pestrea C, Niţă T, and Crişan IM
- Subjects
- Humans, Ankle Brachial Index, Internet, Patient Education as Topic classification
- Abstract
The authors present a classification of the most important types of online resources regarding the ankle-brachial index, for patients with peripheral arterial disease and other interested people (websites of national institutes, universities of medicine, regional hospitals, medical societies and associations etc).
- Published
- 2010
97. Chronic thrombotic scarring in patients with acute deep venous thrombosis of the lower limbs.
- Author
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Crişan S, Vesa S, Pestrea C, Herghea D, Vornicescu D, Chirilă M, and Crişan IM
- Subjects
- Adult, Aged, Aged, 80 and over, Algorithms, Analysis of Variance, Chi-Square Distribution, Chronic Disease, Female, Humans, Leg diagnostic imaging, Logistic Models, Male, Middle Aged, Recurrence, Risk Factors, Cicatrix diagnostic imaging, Leg blood supply, Ultrasonography, Doppler, Duplex, Venous Thrombosis diagnostic imaging
- Abstract
Unlabelled: Some patients with acute deep venous thrombosis of the lower limbs may present risk factors for recurrent disease., Aims: To analyze the most important conditions related to recurrent deep venous thrombosis of the lower limbs, other than thrombophilias., Patients and Methods: We examined 88 consecutive patients (47 males-53.41%, average age 64.9 +/-13.9 years) admitted to a Medical Clinic in 2007. Duplex ultrasonography was performed to assess acute deep venous thrombosis and post-thrombotic syndrome. Anamnesis and physical examination were used to detect risk factors for recurrent disease. The 28 subjects with acute deep venous thrombosis and post-thrombotic syndrome were included in group A (31.82%). Group B comprised 60 patients (68.18%) with acute deep venous thrombosis without post-thrombotic syndrome., Results: Risk factors for recurrent disease in groups A and B were the following: personal history of deep venous thrombosis of the lower limbs (17 subjects versus 7, p<0.0001), varicose veins (14 vs 24, p=0.51), obesity (13 vs 18, p=0.21), malignancy (6 vs 8, p=0.25), chronic obstructive lung disease (5 vs 6, p=0.24), prolonged immobilization (1 vs 7, p=0.21), major surgery (1 vs 1, p=0.54), stroke (0 vs 3, p=0.62), family history of deep venous thrombosis, immobilizing plaster cast, and congestive heart failure (0 vs 1, p=0.54). Location of thrombi in patients in groups A and B was as follows: 18 patients in group A vs 25 subjects in group B on the left side and 13 patients in group A vs 20 patients in group B on the right side (p=0.02)., Conclusion: Post-thrombotic syndrome correlated with personal history of deep venous thrombosis and previous deep venous thrombosis located in the left lower limb.
- Published
- 2010
98. Quantitative proteomics reveals a dynamic association of proteins to detergent-resistant membranes upon elicitor signaling in tobacco.
- Author
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Stanislas T, Bouyssie D, Rossignol M, Vesa S, Fromentin J, Morel J, Pichereaux C, Monsarrat B, and Simon-Plas F
- Subjects
- Cell Membrane drug effects, Fungal Proteins, Luminescent Measurements, Mass Spectrometry, Peptides analysis, Peptides chemistry, Plant Proteins chemistry, Protein Binding drug effects, Reactive Oxygen Species metabolism, Staining and Labeling, Nicotiana cytology, Nicotiana drug effects, Nicotiana microbiology, Algal Proteins pharmacology, Cell Membrane metabolism, Detergents pharmacology, Plant Proteins metabolism, Proteomics methods, Signal Transduction drug effects, Nicotiana metabolism
- Abstract
A large body of evidence from the past decade supports the existence, in membrane from animal and yeast cells, of functional microdomains playing important roles in protein sorting, signal transduction, or infection by pathogens. In plants, as previously observed for animal microdomains, detergent-resistant fractions, enriched in sphingolipids and sterols, were isolated from plasma membrane. A characterization of their proteic content revealed their enrichment in proteins involved in signaling and response to biotic and abiotic stress and cell trafficking suggesting that these domains were likely to be involved in such physiological processes. In the present study, we used (14)N/(15)N metabolic labeling to compare, using a global quantitative proteomics approach, the content of tobacco detergent-resistant membranes extracted from cells treated or not with cryptogein, an elicitor of defense reaction. To analyze the data, we developed a software allowing an automatic quantification of the proteins identified. The results obtained indicate that, although the association to detergent-resistant membranes of most proteins remained unchanged upon cryptogein treatment, five proteins had their relative abundance modified. Four proteins related to cell trafficking (four dynamins) were less abundant in the detergent-resistant membrane fraction after cryptogein treatment, whereas one signaling protein (a 14-3-3 protein) was enriched. This analysis indicates that plant microdomains could, like their animal counterpart, play a role in the early signaling process underlying the setup of defense reaction. Furthermore proteins identified as differentially associated to tobacco detergent-resistant membranes after cryptogein challenge are involved in signaling and vesicular trafficking as already observed in similar studies performed in animal cells upon biological stimuli. This suggests that the ways by which the dynamic association of proteins to microdomains could participate in the regulation of the signaling process may be conserved between plant and animals.
- Published
- 2009
- Full Text
- View/download PDF
99. NADPH oxidase-mediated reactive oxygen species production: subcellular localization and reassessment of its role in plant defense.
- Author
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Lherminier J, Elmayan T, Fromentin J, Elaraqui KT, Vesa S, Morel J, Verrier JL, Cailleteau B, Blein JP, and Simon-Plas F
- Subjects
- Cells, Cultured, DNA, Antisense, Fungal Proteins pharmacology, Hydrogen Peroxide analysis, Hydrogen Peroxide metabolism, Microscopy, Electron, Transmission, Oxidoreductases analysis, Oxidoreductases genetics, Plant Leaves drug effects, Plant Leaves metabolism, Plant Leaves ultrastructure, Plant Proteins analysis, Plant Proteins genetics, Plants, Genetically Modified metabolism, Reactive Oxygen Species analysis, Nicotiana drug effects, Nicotiana genetics, Nicotiana ultrastructure, Oxidoreductases physiology, Plant Proteins physiology, Reactive Oxygen Species metabolism, Nicotiana metabolism
- Abstract
Chemiluminescence detection of reactive oxygen species (ROS) triggered in tobacco BY-2 cells by the fungal elicitor cryptogein was previously demonstrated to be abolished in cells transformed with an antisense construct of the plasma membrane NADPH oxidase, NtrbohD. Here, using electron microscopy, it has been confirmed that the first hydrogen peroxide production occurring a few minutes after challenge of tobacco cells with cryptogein is plasma membrane located and NtrbohD mediated. Furthermore, the presence of NtrbohD in detergent-resistant membrane fractions could be associated with the presence of NtrbohD-mediated hydrogen peroxide patches along the plasma membrane. Comparison of the subcellular localization of ROS in wild-type tobacco and in plants transformed with antisense constructs of NtrbohD revealed that this enzyme is also responsible for the hydrogen peroxide production occurring at the plasma membrane after infiltration of tobacco leaves with cryptogein. Finally, the reactivity of wild-type and transformed plants to the elicitor and their resistance against the pathogenic oomycete Phytophthora parasitica were examined. NtrbohD-mediated hydrogen peroxide production does not seem determinant for either hypersensitive response development or the establishment of acquired resistance but it is most likely involved in the signaling pathways associated with the protection of the plant cell.
- Published
- 2009
- Full Text
- View/download PDF
100. Epidemiology of documented viral respiratory infections and acute otitis media in a cohort of children followed from two to twenty-four months of age.
- Author
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Vesa S, Kleemola M, Blomqvist S, Takala A, Kilpi T, and Hovi T
- Subjects
- Acute Disease, Cohort Studies, Disease Outbreaks, Female, Finland epidemiology, Humans, Infant, Male, Otitis Media virology, Reverse Transcriptase Polymerase Chain Reaction, Seasons, Otitis Media epidemiology, Respiratory Tract Infections epidemiology, Respiratory Tract Infections virology
- Abstract
Background: Viral upper respiratory infections (URIs) are considered major risk factors for acute otitis media (AOM) in young children. We studied the epidemiology and relative roles of different viruses in respiratory infections in a cohort of 329 Finnish children followed from 2 months to 2 years of age., Methods: A nasopharyngeal aspirate (NPA) was collected whenever the child had signs and/or symptoms of URI and tested for the presence of common respiratory virus antigens or infectivity/nucleic acid (only rhinoviruses). Possible repeated detections of a given virus during a 30-day period were considered to represent a single designated virus-specific episode. AOM and URI episodes were defined in a similar way., Results: At least one virus was detected in 837 (41.7%) of the 2005 NPA specimens examined. Rates of URI and virus-specific episodes showed expected seasonal variation with major peak occurrences coinciding with or preceding those of AOM. The proportions of rhinoviruses, respiratory syncytial (RS) virus, parainfluenza virus (PIV) type 3, influenza virus A and adenoviruses were 63.1, 14.7, 6.7, 6.7 and 6.2% of the total of 761 virus-specific episodes. Influenza virus B, PIV1 and PIV2 were each responsible for approximately 1% of the episodes. AOM was diagnosed in 870 URI cases (43.4%) and in 43.3% of cases associated with a virus-positive NPA. The latter figure was clearly higher (57.7%) for RS virus-positive specimens., Conclusions: The seasonal coincidence of URI and AOM demonstrated the obvious role of URI in the pathogenesis of AOM. The occurrence of rhinoviruses and RS virus in URI was strikingly more common than that of any other virus tested. Although rhinoviruses were definitely the most frequently found viruses in NPA specimens, the association of RS virus with concurrent AOM was relatively higher than that of any other virus.
- Published
- 2001
- Full Text
- View/download PDF
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