38 results on '"M. Catellani"'
Search Results
2. MRI-Targeted or systematic random biopsies for prostate cancer diagnosis in biopsy naïve patients: Follow-up of a precision trial-like retrospective cohort
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S. Luzzago, F.A. Mistretta, M.L. Piccinelli, V. Lorusso, M. Morelli, R. Bianchi, M. Catellani, G. Cozzi, E. Di Trapani, P. Pricolo, S. Alessi, M. Ferro, D.V. Matei, G. Petralia, G. Musi, and O. de Cobelli
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Diseases of the genitourinary system. Urology ,RC870-923 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Published
- 2020
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3. Robot-assisted radical cystectomy for bladder cancer: a comparison between intracorporeal vs. extracorporeal orthotopic neobladder
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F.A. Mistretta, C.Collà Ruvolo, S. Luzzago, M.L. Piccinelli, V. Lorusso, M. Morelli, R. Bianchi, M. Catellani, G. Cozzi, E. Di Trapani, M. Ferro, D.V. Matei, G. Musi, and O. de Cobelli
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Diseases of the genitourinary system. Urology ,RC870-923 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Published
- 2020
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4. Oligometastatic prostate cancer: Multidisciplinary treatment vs. standard of care
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F.A. Mistretta, C. Collà Ruvolo, A. Conti, E. Verri, G. Marvaso, S. Luzzago, D. Vizziello, I. Sabatini, M. Bilato, P. Zagami, M. Catellani, E. Di Trapani, G. Cozzi, R. Bianchi, M. Ferro, G. Cordima, A. Brescia, G. Musi, B.A. Jereczek-Fossa, F. Nolè, and O. De Cobelli
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Diseases of the genitourinary system. Urology ,RC870-923 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Published
- 2020
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- View/download PDF
5. MRI-targeted or standard biopsy for prostate cancer diagnosis in biopsy naïve patients. The PRECISION trial follow-up
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S. Luzzago, I. Sabatini, G. Garelli, F.A. Mistretta, A. Conti, M. Catellani, E. Di Trapani, R. Bianchi, G. Cozzi, S. Alessi, P. Pricolo, M. Ferro, D.V. Metei, G. Musi, G. Petralia, and O. De Cobelli
- Subjects
Diseases of the genitourinary system. Urology ,RC870-923 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Published
- 2020
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- View/download PDF
6. Robot-assisted intracorporeal orthotopic ileal neobladder: Description of the 'Shell' technique
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R. Bianchi, F.A. Mistretta, C. Collà Ruvolo, A. Conti, S. Luzzago, D. Vizziello, M. Catellani, E. Di Trapani, G. Cozzi, M. Ferro, G. Cordima, A. Brescia, D. Bottero, F. Verweij, D.V. Matei, G. Musi, and O. De Cobelli
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Diseases of the genitourinary system. Urology ,RC870-923 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Published
- 2020
- Full Text
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7. Oncological outcomes of systematic ureteral frozen sections during radical cystectomy in pure urothelial bladder cancer and in histological variants
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G. La Croce, M. Roscigno, F. Pellucchi, M. Manica, M. Catellani, M. Sodano, A. Saccà, R. Naspro, and L.F. Da Pozzo
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Urology - Published
- 2022
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8. Changes in renal function after nephroureterectomy for upper urinary tract carcinoma: analysis of a large multicenter cohort (radical nephroureterectomy outcomes (RANEO) research consortium)
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A. Tafuri, M. Marchioni, C. Cerrato, A. Mari, R. Tellini, K. Odorizzi, A. Veccia, D. Amparore, A. Shakir, U. Carbonara, F. Trovato, M. Catellani, L.M.I. Janello, L. Bianchi, G. Novara, F. Dal Moro, R. Schiavina, E. De Lorenzis, P. Parma, S. Cimino, O. de Cobelli, F. Maiorino, P. Bove, F. Crocerossa, F. Cantiello, D. D’andrea, F. Di Cosmo, F. Porpiglia, P. Ditonno, E. Montanari, F. Soria, P. Gontero, G. Liguori, C. Trombetta, G. Mantica, M. Borghesi, C. Terrone, F. Del Giudice, A. Sciarra, A. Galosi, M. Moschini, S.F. Shariat, M. Di Nicola, A. Minervini, M. Ferro, M.A. Cerruto, L. Schips, V. Pagliarulo, and A. Antonelli
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Urology - Published
- 2022
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9. Impact of postoperative radiotherapy on biochemical recurrence in pn1 prostate cancer patients: establishing the most appropriate timing for radiotherapy administration
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F.A. Mistretta, I. Sabatini, G. Marvaso, S. Luzzago, M. Catellani, E. Di Trapani, G. Corrao, G. Cozzi, R. Bianchi, M. Augugliaro, G. Cordima, M. Ferro, D. Bottero, D.V. Matei, G. Musi, B.A. Jereczek-Fossa, and O. De Cobelli
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Urology - Published
- 2021
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10. Chiral Polyalkylthiophenes for Organic Light Emitting Diodes
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Giovanna Longhi, Alberto Bolognesi, M. Catellani, Silvia Luzzati, F. Lebon, and S. Abbate
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Circular dichroism ,Materials science ,chemistry.chemical_element ,Electroluminescence ,Photochemistry ,law.invention ,chemistry ,law ,OLED ,Chirality (chemistry) ,Tin ,Indium ,Cotton effect ,Light-emitting diode - Abstract
Chiral polyalkylthiophenes are noncentrosymmetric organic materials which can be used both in second harmonic-generation devices and in polarized light emitting diodes. In this work we present the synthesis and the characterization of a polyalkylthiophene with a chiral center very close to the conjugated backbone: poly(3-[(S)-2-methylbutyl]thiophene) (PMBT). Circular dichroism (CD) measurements have been carried out to ascertain the chirality of these materials. The CD spectra show intense signals both in mixed solvents and in the solid state. The strong Cotton effect can be associated to a highly ordered aggregated phase whose nature is still under investigation. We also present the photo and electroluminescence characterization of single layer light emitting diode (LED) with the following configuration: ITO (Tin Indium Oxide)/PMBT/Al.
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- 2001
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11. Photochemical synthesis and optical properties of high membered thiohelicenes
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Silvia Luzzati, Tullio Caronna, S. Abbate, M. Catellani, Giovanna Longhi, and R. Sinisi
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Absorption spectroscopy ,Mechanical Engineering ,Metals and Alloys ,Condensed Matter Physics ,Photochemistry ,Oligomer ,Electronic, Optical and Magnetic Materials ,chemistry.chemical_compound ,chemistry ,Helicene ,Mechanics of Materials ,Materials Chemistry ,Molecule ,Ladder polymer ,Emission spectrum ,Enantiomer ,Absorption (chemistry) - Abstract
A general photochemical synthesis of large thiohelicenes composed containing 5, 7, 9 and 11 rings is presented. The absorption and emission properties of the racemic molecules are discussed along with the chirooptical properties of two enantiomers.
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- 2001
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12. [Functional reserve of the exocrine pancreas in Sjögren's syndrome]
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A, D'Ambrosi, A, Verzola, P, Gennaro, S, Gatto, M, Catellani, and R, La Corte
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Adult ,Middle Aged ,Arthritis, Rheumatoid ,Bicarbonates ,Pancreatic Function Tests ,Sjogren's Syndrome ,Secretin ,Humans ,Exocrine Pancreatic Insufficiency ,Female ,Trypsin ,Pancreas ,Ceruletide ,Aged - Abstract
Exocrine pancreatic function was studied in a homogeneous group of 33 female patients aged 42-67 years. Of these patients, 11 were classified as rheumatoid arthritis (RA), 11 as Sjögren's syndrome I (SSI) and 11 as Sjögren's syndrome associated with RA (SSII). Clinical features, laboratory tests and special instrumental techniques excluded gastroenteric-hepatobiliary causes of pancreatic diseases. These patients were subjected to direct pancreatic stimulation with secretin and caerulein (S. Cae test). Test results, compared to control-group (10 voluntary healthy females) showed, in the last 30 m of stimulation, a statistically significant decrease (p0.05) in duodenal juice volume, bicarbonates and trypsin in 6 cases (54.5%) of SSI and in 3 cases (27.2%) of RA. SSII S. Cae test showed a decrease of volume and bicarbonates in 6 patients (54.5%) and in only 4 of these (36.4%) it was associated with a concomitant decrease in trypsin levels. Authors discuss the subclinical exocrine pancreatic function in relationship to sicca-syndrome, possible immunological factors and primary disease of pancreatic ducts.
- Published
- 1997
13. Characterization of thin films of regioregular poly(alkylthiophene)s bearing optically active substituents
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Alice Brazzi, Silvia Luzzati, Luigi Angiolini, Valeria Grenci, Marinella Catellani, Elisabetta Salatelli, L. Angiolini, A. Brazzi, V. Grenci, E. Salatelli, M. Catellani, and S. Luzzati
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Materials science ,Bearing (mechanical) ,Polymers and Plastics ,genetic structures ,General Chemical Engineering ,technology, industry, and agriculture ,Optically active ,eye diseases ,law.invention ,Characterization (materials science) ,Chemical engineering ,law ,sense organs ,Physical and Theoretical Chemistry ,Thin film - Abstract
The spectroscopic behavior of thin films of regioregular poly(alkylthiophene)s bearing an optically active alkyl group has been investigated in the solid state under different sample preparation procedures. The experimental results are interpreted in terms of influence of the side-chain substituents on the extent of planarity of the polymeric chains and the formation of optically active chiral aggregates.
14. HoloLens ® platform for healthcare professionals simulation training, teaching, and its urological applications: an up-to-date review.
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Tătaru OS, Ferro M, Marchioni M, Veccia A, Coman O, Lasorsa F, Brescia A, Crocetto F, Barone B, Catellani M, Lazar A, Petrisor M, Vartolomei MD, Lucarelli G, Antonelli A, Schips L, Autorino R, Rocco B, and Azamfirei L
- Abstract
The advancements of technological devices and software are putting mixed reality in the frontline of teaching medical personnel. The Microsoft
® HoloLens 2® offers a unique 3D visualization of a hologram in a physical, real environment and allows the urologists to interact with it. This review provides a state-of-the-art analysis of the applications of the HoloLens® in a medical and healthcare context of teaching through simulation designed for medical students, nurses, residents especially in urology. Our objective has been to perform a comprehensively analysis of the studies in PubMed/Medline database from January 2016 to April 2023. The identified articles that researched Microsoft HoloLens, having description of feasibility and teaching outcomes in medicine with an emphasize in urological healthcare, have been included. The qualitative analysis performed identifies an increasing use of HoloLens in a teaching setting that covers a great area of expertise in medical sciences (anatomy, anatomic pathology, biochemistry, pharmacogenomics, clinical skills, emergency medicine and nurse education, imaging), and above these urology applications (urological procedures and technique, skill improvement, perception of complex renal tumors, accuracy of calyx puncture guidance in percutaneous nephrolithotomy and targeted biopsy of the prostate) can mostly benefit from it. The future potential of HoloLens technology in teaching is immense. So far, studies have focused on feasibility, applicability, perception, comparisons with traditional methods, and limitations. Moving forward, research should also prioritize the development of applications specifically for urology. This will require validation of needs and the creation of adequate protocols to standardize future research efforts., Competing Interests: The authors declare that there is no conflict of interest., (© The Author(s), 2024.)- Published
- 2024
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15. Semi-Supervised Bladder Tissue Classification in Multi-Domain Endoscopic Images.
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Lazo JF, Rosa B, Catellani M, Fontana M, Mistretta FA, Musi G, de Cobelli O, de Mathelin M, and De Momi E
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- Humans, Endoscopy, Light, Narrow Band Imaging methods, Urinary Bladder diagnostic imaging, Urinary Bladder Neoplasms diagnostic imaging, Urinary Bladder Neoplasms pathology
- Abstract
Objective: Accurate visual classification of bladder tissue during Trans-Urethral Resection of Bladder Tumor (TURBT) procedures is essential to improve early cancer diagnosis and treatment. During TURBT interventions, White Light Imaging (WLI) and Narrow Band Imaging (NBI) techniques are used for lesion detection. Each imaging technique provides diverse visual information that allows clinicians to identify and classify cancerous lesions. Computer vision methods that use both imaging techniques could improve endoscopic diagnosis. We address the challenge of tissue classification when annotations are available only in one domain, in our case WLI, and the endoscopic images correspond to an unpaired dataset, i.e. there is no exact equivalent for every image in both NBI and WLI domains., Method: We propose a semi-surprised Generative Adversarial Network (GAN)-based method composed of three main components: a teacher network trained on the labeled WLI data; a cycle-consistency GAN to perform unpaired image-to-image translation, and a multi-input student network. To ensure the quality of the synthetic images generated by the proposed GAN we perform a detailed quantitative, and qualitative analysis with the help of specialists., Conclusion: The overall average classification accuracy, precision, and recall obtained with the proposed method for tissue classification are 0.90, 0.88, and 0.89 respectively, while the same metrics obtained in the unlabeled domain (NBI) are 0.92, 0.64, and 0.94 respectively. The quality of the generated images is reliable enough to deceive specialists., Significance: This study shows the potential of using semi-supervised GAN-based bladder tissue classification when annotations are limited in multi-domain data.
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- 2023
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16. Artificial Intelligence in the Advanced Diagnosis of Bladder Cancer-Comprehensive Literature Review and Future Advancement.
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Ferro M, Falagario UG, Barone B, Maggi M, Crocetto F, Busetto GM, Giudice FD, Terracciano D, Lucarelli G, Lasorsa F, Catellani M, Brescia A, Mistretta FA, Luzzago S, Piccinelli ML, Vartolomei MD, Jereczek-Fossa BA, Musi G, Montanari E, Cobelli O, and Tataru OS
- Abstract
Artificial intelligence is highly regarded as the most promising future technology that will have a great impact on healthcare across all specialties. Its subsets, machine learning, deep learning, and artificial neural networks, are able to automatically learn from massive amounts of data and can improve the prediction algorithms to enhance their performance. This area is still under development, but the latest evidence shows great potential in the diagnosis, prognosis, and treatment of urological diseases, including bladder cancer, which are currently using old prediction tools and historical nomograms. This review focuses on highly significant and comprehensive literature evidence of artificial intelligence in the management of bladder cancer and investigates the near introduction in clinical practice.
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- 2023
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17. Beyond blood biomarkers: the role of SelectMDX in clinically significant prostate cancer identification.
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Ferro M, Rocco B, Maggi M, Lucarelli G, Falagario UG, Del Giudice F, Crocetto F, Barone B, La Civita E, Lasorsa F, Brescia A, Catellani M, Busetto GM, Tataru OS, and Terracciano D
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- Male, Humans, Prostate diagnostic imaging, Prostate pathology, Biomarkers, Tumor genetics, Biopsy, Magnetic Resonance Imaging, Quality of Life, Prostatic Neoplasms genetics
- Abstract
Introduction: New potential biomarkers to pre-intervention identification of a clinically significant prostate cancer (csPCa) will prevent overdiagnosis and overtreatment and limit quality of life impairment of PCa patients., Areas Covered: We have developed a comprehensive review focusing our research on the increasing knowledge of the role of SelectMDX® in csPCa detection. Areas identified as clinically relevant are the ability of SelectMDX® to predict csPCa in active surveillance setting, its predictive ability when combined with multiparametric MRI and the role of SelectMDX® in the landscape of urinary biomarkers., Expert Opinion: Several PCa biomarkers have been developed either alone or in combination with clinical variables to improve csPCa detection. SelectMDX® score includes genomic markers, age, PSA, prostate volume, and digital rectal examination. Several studies have shown consistency in the ability to improve detection of csPCa, avoidance of unnecessary prostate biopsies, helpful in decision-making for clinical benefit of PCa patients with future well designed, and impactful studies.
- Published
- 2023
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18. Farming for Pharming: Novel Hydroponic Process in Contained Environment for Efficient Pharma-Grade Production of Saffron.
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Nardi L, Metelli G, Garegnani M, Villani ME, Massa S, Bennici E, Lamanna R, Catellani M, Bisti S, Maggi MA, Demurtas OC, Benvenuto E, and Desiderio A
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- Farms, Hydroponics, Molecular Farming, Agriculture, Plant Extracts chemistry, Crocus chemistry
- Abstract
Soilless cultivation of saffron ( Crocus sativus ) in a controlled environment represents an interesting alternative to field cultivation, in order to obtain a standardized high-quality product and to optimize yields. In particular, pharma-grade saffron is fundamental for therapeutic applications of this spice, whose efficacy has been demonstrated in the treatment of macular diseases, such as Age-related Macular Degeneration (AMD). In this work, a hydroponic cultivation system was developed, specifically designed to meet the needs of C. sativus plant. Various cultivation recipes, different in spectrum and intensity of lighting, temperature, photoperiod and irrigation, have been adopted to study their effect on saffron production. The experimentation involved the cultivation of corms from two subsequent farm years, to identify and validate the optimal conditions, both in terms of quantitative yield and as accumulation of bioactive metabolites, with particular reference to crocins and picrocrocin, which define the 'pharma-grade' quality of saffron. Through HPLC analysis and chromatography it was possible to identify the cultivation parameters suitable for the production of saffron with neuroprotective properties, evaluated by comparison with an ISO standard and the REPRON
® procedure. Furthermore, the biochemical characterization was completed through NMR and high-resolution mass spectrometry analyses of saffron extracts. The whole experimental framework allowed to establish an optimized protocol to produce pharma-grade saffron, allowing up to 3.2 g/m2 harvest (i.e., more than three times higher than field production in optimal conditions), which meets the standards of composition for the therapy of AMD.- Published
- 2022
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19. Design of a Diagnostic Immunoassay for Aflatoxin M1 Based on a Plant-Produced Antibody.
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Capodicasa C, Bastiani E, Serra T, Anfossi L, and Catellani M
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- Animals, Enzyme-Linked Immunosorbent Assay, Immunoassay, Milk chemistry, Food Contamination analysis, Aflatoxin M1 analysis, Antibodies
- Abstract
A new green competitive ELISA for aflatoxin M1 quantification in raw milk was developed. This diagnostic tool is based on an anti AFM1 mAb produced by plant molecular farming in alternative to classical systems. Our assay, showing an IC
50 below 25 ng/L, fits with the requirements of EU legislation limits for AFM1 (50 ng/L). Optimal accuracy was achieved in correspondence of the decision levels (25 and 50 ng/L), and the assay enabled AFM1 quantification in the range 5-110 ng/L, with limit of detection 3 ng/L. Moreover, to evaluate a real applicability in diagnostics, raw milk-spiked samples were analysed, achieving satisfactory recovery rates of AFM1. In conclusion, an efficient and ready-to-use diagnostic assay for the quantification of aflatoxin M1 in milk, based on a plant-produced recombinant mAb, has been successfully developed.- Published
- 2022
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20. Oligometastatic Prostate Cancer: A Comparison between Multimodality Treatment vs. Androgen Deprivation Therapy Alone.
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Mistretta FA, Luzzago S, Conti A, Verri E, Marvaso G, Collà Ruvolo C, Catellani M, Di Trapani E, Cozzi G, Bianchi R, Ferro M, Cordima G, Brescia A, Cossu Rocca M, Mirone V, Jereczek-Fossa BA, Nolè F, de Cobelli O, and Musi G
- Abstract
Background: We compared multimodality treatment (MMT, defined as robot-assisted radical prostatectomy (RARP) with androgen deprivation therapy (ADT), with or without adjuvant radiotherapy (RT)) vs. ADT alone in oligometastatic prostate cancer (OPC) patients. Methods: From 2010 to 2018, we identified 74 patients affected by cM1a-b OPC (≤5 metastases). Kaplan−Meier (KM) plots depicted cancer-specific mortality (CSM), disease progression, metastatic castration-resistant PC (mCRPC), and time to second-line systemic therapy rates. Multivariable Cox regression models (MCRMs) focused on disease progression and mCRPC. Results: Forty (54.0%) MMT and thirty-four (46.0%) ADT patients were identified. On KM plots, higher CSM (5.9 vs. 37.1%; p = 0.02), mCRPC (24.0 vs. 62.5%; p < 0.01), and second-line systemic therapy (33.3 vs. 62.5%; p < 0.01) rates were recorded in the ADT group. No statistically significant difference was recorded for disease progression. ForMCRMs adjusted for the metastatic site and PSA, a higher mCRPC rate was recorded in the ADT group. No statistically significant difference was recorded for disease progression. Treatment-related adverse events occurred in 5 (12.5%) MMT vs. 15 (44.1%) ADT patients (p < 0.01). Conclusions: MMT was associated with lower CSM, mCRPC, and second-line therapy rates. A lower rate of treatment-related adverse events was recorded for the MMT group.
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- 2022
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21. The Accuracy of Transurethral Bladder Resection in Detecting Bladder Cancer Histological Variants and Their Prognostic Value at Radical Cystectomy.
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La Croce G, Naspro R, Finati M, Pellucchi F, Sodano M, Manica M, Catellani M, Gianatti A, Roscigno M, and Da Pozzo LF
- Abstract
Objectives: to investigate the accuracy of transurethral resection of bladder tumours (TURBT) in detecting histological variants (BHV) at radical cystectomy (RC) and to evaluate the impact of TURBT before cystectomy on oncological outcomes., Methods: Data of 410 consecutive RCs were assessed. Positive and negative predictive values were used to assess the accuracy of TURBT in detecting BHV. Cohen's Kappa coefficient was used to calculate the agreement grade. Logistic regression analysis predicted features based on the presence of BHV at TURBT. Multivariable backward conditional Cox regression analysis was used to estimate oncological outcomes., Results: A total of 73 patients (17.8%) showed BHV at TURBT as compared to 108 (26.3%) at RC. A moderate agreement in histological diagnosis was found between TURBT and RC (0.58). However, sensitivity and specificity in detecting BHV were 56% and 96%, respectively. Furthermore, positive predictive value (PPV) was 84.7% and negative predictive value (NPV) was 84.6%. Presence of BHV at TURBT was an independent predictor for pathologic upstage, albeit not a predictor for positive nodes or positive surgical margins. However, at multivariable analysis adjusted for all confounders, presence of BHV at TURBT was an independent predictor for recurrence after RC, but not for survival. Conversely, the presence of BHV at RC was an independent predictor for both recurrence and survival., Conclusion: There was a moderate agreement between TURBT and RC histopathological findings. TURBT, alone, could not provide an accurate and definitive histological diagnosis. Detection of BHV in TURBT specimens is not an independent predictor of oncological outcomes; indeed, only pathological features at RC are associated with worse survival. However, BHV presence in cystectomy specimens resulted as an independent predictor of both cancer-specific and overall mortality.
- Published
- 2022
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22. Automating Endoscope Motion in Robotic Surgery: A Usability Study on da Vinci-Assisted Ex Vivo Neobladder Reconstruction.
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Da Col T, Caccianiga G, Catellani M, Mariani A, Ferro M, Cordima G, De Momi E, Ferrigno G, and de Cobelli O
- Abstract
Robots for minimally invasive surgery introduce many advantages, but still require the surgeon to alternatively control the surgical instruments and the endoscope. This work aims at providing autonomous navigation of the endoscope during a surgical procedure. The autonomous endoscope motion was based on kinematic tracking of the surgical instruments and integrated with the da Vinci Research Kit. A preclinical usability study was conducted by 10 urologists. They carried out an ex vivo orthotopic neobladder reconstruction twice, using both traditional and autonomous endoscope control. The usability of the system was tested by asking participants to fill standard system usability scales. Moreover, the effectiveness of the method was assessed by analyzing the total procedure time and the time spent with the instruments out of the field of view. The average system usability score overcame the threshold usually identified as the limit to assess good usability (average score = 73.25 > 68). The average total procedure time with the autonomous endoscope navigation was comparable with the classic control ( p = 0.85 > 0.05), yet it significantly reduced the time out of the field of view ( p = 0.022 < 0.05). Based on our findings, the autonomous endoscope improves the usability of the surgical system, and it has the potential to be an additional and customizable tool for the surgeon that can always take control of the endoscope or leave it to move autonomously., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Da Col, Caccianiga, Catellani, Mariani, Ferro, Cordima, De Momi, Ferrigno and de Cobelli.)
- Published
- 2021
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23. The Impact of SARS-CoV-2 Pandemic on Time to Primary, Secondary Resection and Adjuvant Intravesical Therapy in Patients with High-Risk Non-Muscle Invasive Bladder Cancer: A Retrospective Multi-Institutional Cohort Analysis.
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Ferro M, Del Giudice F, Carrieri G, Busetto GM, Cormio L, Hurle R, Contieri R, Arcaniolo D, Sciarra A, Maggi M, Porpiglia F, Manfredi M, Fiori C, Antonelli A, Tafuri A, Bove P, Terrone C, Borghesi M, Costantini E, Iliano E, Montanari E, Boeri L, Russo GI, Madonia M, Tedde A, Veccia A, Simeone C, Liguori G, Trombetta C, Brunocilla E, Schiavina R, Dal Moro F, Racioppi M, Vartolomei MD, Longo N, Spirito L, Crocetto F, Cantiello F, Damiano R, Di Stasi SM, Marchioni M, Schips L, Parma P, Carmignani L, Conti A, Soria F, Gontero P, Barone B, Deho F, Zaffuto E, Papalia R, Scarpa RM, Pagliarulo V, Lucarelli G, Ditonno P, Botticelli FMG, Musi G, Catellani M, and de Cobelli O
- Abstract
Background: To investigate the impact of COVID-19 outbreak on the diagnosis and treatment of non-muscle invasive bladder cancer (NMIBC)., Methods: A retrospective analysis was performed using an Italian multi-institutional database of TURBT patients with high-risk urothelial NMIBC between January 2019 and February 2021, followed by Re-TURBT and/or adjuvant intravesical BCG., Results: A total of 2591 patients from 27 institutions with primary TURBT were included. Of these, 1534 (59.2%) and 1056 (40.8%) underwent TURBT before and during the COVID-19 outbreak, respectively. Time between diagnosis and TURBT was significantly longer during the COVID-19 period (65 vs. 52 days, p = 0.002). One thousand and sixty-six patients (41.1%) received Re-TURBT, 604 (56.7%) during the pre-COVID-19. The median time to secondary resection was significantly longer during the COVID-19 period (55 vs. 48 days, p < 0.0001). A total of 977 patients underwent adjuvant intravesical therapy after primary or secondary resection, with a similar distribution across the two groups ( n = 453, 86% vs. n = 388, 86.2%). However, the proportion of the patients who underwent maintenance significantly differed (79.5% vs. 60.4%, p < 0.0001)., Conclusions: The COVID-19 pandemic represented an unprecedented challenge to our health system. Our study did not show significant differences in TURBT quality. However, a delay in treatment schedule and disease management was observed. Investigation of the oncological impacts of those differences should be advocated.
- Published
- 2021
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24. Robot-Assisted Intracorporeal Orthotopic Ileal Neobladder: Description of the "Shell" Technique.
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Bianchi R, Mistretta FA, Musi G, Luzzago S, Morelli M, Lorusso V, Catellani M, Di Trapani E, Cozzi G, Ferro M, Bottero D, Matei DV, and de Cobelli O
- Abstract
Background: Robot-assisted radical cystectomy (RARC) with intracorporeal neobladder (ICNB) remains a very complicated, technically demanding and time-consuming surgical procedure. In the current study we describe our robot-assisted intracorporeal "Shell" neobladder reconstruction., Methods: From January 2017 to December 2019, we performed 30 intracorporeal ileal neobladder "Shell" reconstructions. We prospectively collected demographics and clinical and pathological data and retrospectively analysed perioperative, functional and oncological outcomes., Results: No conversion to open surgery or intraoperative blood transfusion was necessary. The median whole operative time was 493 min (IQR 433-530 min), ranging from 514 min (IQR 502-554 min) recorded during the first ten procedures to 470 min (IQR 442-503 min) of the last ten. The median estimated blood loss was 400 mL (IQR 350-700 mL). The median length of stay was 11 days (IQR 10-17). Both early and late complication rates were 46.7%. The high-grade early complication rate accounted for 20%, while the high-grade late complication rate was 30%. The daytime continence rate registered was 73.3%, while night-time continence rate was 60%., Conclusions: Our results demonstrated "Shell" neobladder reconstruction as a technically feasible procedure, with good functional outcomes in tertiary referral centre. Longer follow-up and larger populations are needed to validate these preliminary results.
- Published
- 2021
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25. Three vs. Four Cycles of Neoadjuvant Chemotherapy for Localized Muscle Invasive Bladder Cancer Undergoing Radical Cystectomy: A Retrospective Multi-Institutional Analysis.
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Ferro M, de Cobelli O, Musi G, Lucarelli G, Terracciano D, Pacella D, Muto T, Porreca A, Busetto GM, Del Giudice F, Soria F, Gontero P, Cantiello F, Damiano R, Crocerossa F, Farhan ARA, Autorino R, Vartolomei MD, Muto M, Marchioni M, Mari A, Scafuri L, Minervini A, Longo N, Chiancone F, Perdona S, De Placido P, Verde A, Catellani M, Luzzago S, Mistretta FA, Ditonno P, Caputo VF, Battaglia M, Zamboni S, Antonelli A, Greco F, Russo GI, Hurle R, Crisan N, Manfredi M, Porpiglia F, Di Lorenzo G, Crocetto F, and Buonerba C
- Abstract
Background: Three or four cycles of cisplatin-based chemotherapy is the standard neoadjuvant treatment prior to cystectomy in patients with muscle-invasive bladder cancer. Although NCCN guidelines recommend 4 cycles of cisplatin-gemcitabine, three cycles are also commonly administered in clinical practice. In this multicenter retrospective study, we assessed a large and homogenous cohort of patients with urothelial bladder cancer (UBC) treated with three or four cycles of neoadjuvant cisplatin-gemcitabine followed by radical cystectomy, in order to explore whether three vs. four cycles were associated with different outcomes., Methods: Patients with histologically confirmed muscle-invasive UBC included in this retrospective study had to be treated with either 3 (cohort A) or 4 (cohort B) cycles of cisplatin-gemcitabine as neoadjuvant therapy before undergoing radical cystectomy with lymphadenectomy. Outcomes including pathologic downstaging to non-muscle invasive disease, pathologic complete response (defined as absence of disease -ypT0), overall- and cancer-specific- survival as well as time to recurrence were compared between cohorts A vs. B., Results: A total of 219 patients treated at 14 different high-volume Institutions were included in this retrospective study. Patients who received 3 (cohort A) vs. 4 (cohort B) cycles of neoadjuvant cisplatin-gemcitabine were 160 (73,1%) vs. 59 (26,9%).At univariate analysis, the number of neoadjuvant cycles was not associated with either pathologic complete response, pathologic downstaging, time to recurrence, cancer specific, and overall survival. Of note, patients in cohort B vs. A showed a worse non-cancer specific overall survival at univariate analysis (HR= 2.53; 95 CI= 1.05 - 6.10; p=0.046), although this finding was not confirmed at multivariate analysis., Conclusions: Our findings suggest that 3 cycles of cisplatin-gemcitabine may be equally effective, with less long-term toxicity, compared to 4 cycles in the neoadjuvant setting., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Ferro, de Cobelli, Musi, Lucarelli, Terracciano, Pacella, Muto, Porreca, Busetto, Del Giudice, Soria, Gontero, Cantiello, Damiano, Crocerossa, Farhan, Autorino, Vartolomei, Muto, Marchioni, Mari, Scafuri, Minervini, Longo, Chiancone, Perdona, De Placido, Verde, Catellani, Luzzago, Mistretta, Ditonno, Caputo, Battaglia, Zamboni, Antonelli, Greco, Russo, Hurle, Crisan, Manfredi, Porpiglia, Di Lorenzo, Crocetto and Buonerba.)
- Published
- 2021
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26. Neutrophil percentage-to-albumin ratio predicts mortality in bladder cancer patients treated with neoadjuvant chemotherapy followed by radical cystectomy.
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Ferro M, Babă DF, de Cobelli O, Musi G, Lucarelli G, Terracciano D, Porreca A, Busetto GM, Del Giudice F, Soria F, Gontero P, Cantiello F, Damiano R, Rocco P, Scarpa RM, Abu Farhan AR, Autorino R, Brescia A, Marchioni M, Mari A, Minervini A, Longo N, Chiancone F, Perdona' S, Barone B, Placido P, Catellani M, Bottero D, Ditonno P, Battaglia M, Zamboni S, Antonelli A, Greco F, Russo GI, Smelzo S, Hurle R, Crisan N, Manfredi M, Porpiglia F, Crocetto F, Buonerba C, Danilesco A, and Vartolomei MD
- Abstract
Aim: To investigate the prognostic role of neutrophil percentage-to-albumin ratio (NPAR) in muscle-invasive bladder cancer (MIBC) patients treated with neoadjuvant chemotherapy (NAC) and radical cystectomy (RC)., Patients & Methods: 213 patients were included., Inclusion Criteria: Nonmetastatic, MIBC (cT2-T4aN0M0), at least three cycles of NAC, undergone RC and with blood count within 30 days before NAC., Results: Five-years overall survival (OS) with NPAR >18 was 34.06% (95% CI: 18.3-50.5) and 65.37% (95% CI: 52.4-75.6) with NPAR <18. Five years cancer-specific survival (CSS) with NPAR >18 was 42.9% (95% CI: 23.9-60.7) and 74.5% (95% CI: 62.6-83.1) with NPAR <18 (p < 0.001). In multivariable analysis, NPAR increased OS of 1.3 points and CSS of 4.37 points., Conclusion: High NPAR prior to NAC seems to be a strong predictor of OS and CSS in MIBC patients treated with NAC and RC., Competing Interests: Financial & competing interests disclosure This work was supported by a grant of the Romanian Ministry of Education and Research, CNCS - UEFISCDI, project number PN-III-P1-1.1-PD-2019-0085 within PNCDI III. Theauthors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed. No writing assistance was utilized in the production of this manuscript., (© 2021 Matteo Ferro.)
- Published
- 2021
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27. Assessment of PSIM (Prostatic Systemic Inflammatory Markers) Score in Predicting Pathologic Features at Robotic Radical Prostatectomy in Patients with Low-Risk Prostate Cancer Who Met the Inclusion Criteria for Active Surveillance.
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Ferro M, Musi G, Matei DV, Mistretta AF, Luzzago S, Cozzi G, Bianchi R, Di Trapani E, Cioffi A, Lucarelli G, Busetto GM, Del Giudice F, Russo GI, Di Mauro M, Porreca A, Renne G, Catellani M, Bottero D, Brescia A, Cordima G, and de Cobelli O
- Abstract
Background: circulating levels of lymphocytes, platelets and neutrophils have been identified as factors related to unfavorable clinical outcome for many solid tumors. The aim of this cohort study is to evaluate and validate the use of the Prostatic Systemic Inflammatory Markers (PSIM) score in predicting and improving the detection of clinically significant prostate cancer (csPCa) in men undergoing robotic radical prostatectomy for low-risk prostate cancer who met the inclusion criteria for active surveillance., Methods: we reviewed the medical records of 260 patients who fulfilled the inclusion criteria for active surveillance. We performed a head-to-head comparison between the histological findings of specimens after radical prostatectomy (RP) and prostate biopsies. The PSIM score was calculated on the basis of positivity according to cutoffs (neutrophil-to-lymphocyte ratio (NLR) 2.0, platelets-to-lymphocyte ratio (PLR) 118 and monocyte-to-lymphocyte-ratio (MLR) 5.0), with 1 point assigned for each value exceeding the specified threshold and then summed, yielding a final score ranging from 0 to 3., Results: median NLR was 2.07, median PLR was 114.83, median MLR was 3.69., Conclusion: we found a significantly increase in the rate of pathological International Society of Urological Pathology (ISUP) ≥ 2 with the increase of PSIM. At the multivariate logistic regression analysis adjusted for age, prostate specific antigen (PSA), PSA density, prostate volume and PSIM, the latter was found the sole independent prognostic variable influencing probability of adverse pathology.
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- 2021
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28. Clinical evaluation and disease management of PI-RADS 3 lesions. Analysis from a single tertiary high-volume center.
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Di Trapani E, Musi G, Ferro M, Cordima G, Mistretta FA, Luzzago S, Bianchi R, Cozzi G, Alessi S, Catellani M, Matei DV, Jereczek-Fossa BA, Petralia G, and De Cobelli O
- Subjects
- Disease Management, Humans, Image-Guided Biopsy, Magnetic Resonance Imaging, Male, Multiparametric Magnetic Resonance Imaging, Retrospective Studies, Prostatic Neoplasms diagnostic imaging, Prostatic Neoplasms therapy
- Abstract
Objective: To evaluate the clinical and pathological implications of Prostate Cancer (PCa) patients with a Prostate Imaging - Reporting and Data System (PI-RADS) 3 lesion at multi parametric magnetic resonance imaging (mpMRI)., Methods: We included 356 patients with a PI-RADS score 3 lesion at mpMRI who underwent prostate biopsy for a suspect of PCa at a single tertiary high-volume centre between 2013 and 2016.We developed Uni- (UVA) and multi variable (MVA) logistic regression analyses assessing the predictors of three endpoints: 1) diagnosis of PCa, 2) active surveillance (AS) criteria and 3) clinically significant (CS) PCa at final pathology., Results: PCa was diagnosed in 285 patients (80%), out of these 154 (56%) were eligible for AS according to Prostate Cancer Research International Active Surveillance (PRIAS) criteria. Over the 228 (64%) patients who underwent surgery, 93 (40.8%) had a CS disease at final pathology. Hundred and ninety-three (84.6%) had a pT2 disease and 35 (15.4%) had a pT3 disease. The size of the main lesion, age, PSA and prostate volume efficiently predicted PCa at MVA (all p < 0.05). None of our predictors were significantly associated with AS characteristics. Over those patients who underwent surgery, the biopsy Gleason Score ( p = 0.007) efficiently predicted a CS PCa at final pathology., Conclusions: mpMRI-detected PI-RADS 3 lesions should be sent to a prostate biopsy if other clinical parameters suggest the presence of a PCa. In case of diagnosis of a PCa, patients should undergo confirmatory biopsy before being included in AS protocols to avoid underestimation of a CS disease.
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- 2020
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29. Optimised production of an anti-fungal antibody in Solanaceae hairy roots to develop new formulations against Candida albicans.
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Catellani M, Lico C, Cerasi M, Massa S, Bromuro C, Torosantucci A, Benvenuto E, and Capodicasa C
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- Candida albicans drug effects, Homologous Recombination, Solanum lycopersicum cytology, Solanum lycopersicum genetics, Plant Roots cytology, Plant Roots genetics, Plants, Genetically Modified, Protein Engineering, Recombinant Proteins pharmacology, Single-Chain Antibodies genetics, Solanaceae genetics, Nicotiana cytology, Nicotiana genetics, Antifungal Agents pharmacology, Candida albicans growth & development, Single-Chain Antibodies pharmacology, Solanaceae cytology
- Abstract
Background: Infections caused by fungi are often refractory to conventional therapies and urgently require the development of novel options, such as immunotherapy. To produce therapeutic antibodies, a plant-based expression platform is an attractive biotechnological strategy compared to mammalian cell cultures. In addition to whole plants, hairy roots (HR) cultures can be used, representing an expression system easy to build up, with indefinite growth while handled under containment conditions., Results: In this study the production in HR of a recombinant antibody, proved to be a good candidate for human immunotherapy against fungal infections, is reported. Expression and secretion of this antibody, in an engineered single chain (scFvFc) format, by HR from Nicotiana benthamiana and Solanum lycopersicum have been evaluated with the aim of directly using the deriving extract or culture medium against pathogenic fungi. Although both Solanaceae HR showed good expression levels (up to 68 mg/kg), an optimization of rhizosecretion was only obtained for N. benthamiana HR. A preliminary assessment to explain this result highlighted the fact that not only the presence of proteases, but also the chemical characteristics of the growth medium, can influence antibody yield, with implications on recombinant protein production in HR. Finally, the antifungal activity of scFvFc 2G8 antibody produced in N. benthamiana HR was evaluated in Candida albicans growth inhibition assays, evidencing encouraging results., Conclusions: Production of this anti-fungal antibody in HR of N. benthamiana and S. lycopersicum elucidated factors affecting pharming in this system and allowed to obtain promising ready-to-use immunotherapeutics against C. albicans.
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- 2020
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30. Safety and feasibility of thullium laser transurethral resection of prostate for the treatment of benign prostatic enlargement in overweight patients.
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Carmignani L, Clementi MC, Signorini C, Motta G, Nazzani S, Palmisano F, De Lorenzis E, Catellani M, Mistretta AF, Conti A, Tringali V, Costa MB, and Vizziello D
- Abstract
Objective: We aimed to determine safety and feasibility of thulium laser transurethral vapoenucleation of prostate (ThuVEP) for treatment of obese patients affected by benign prostatic hyperplasia (BPH)., Methods: We retrospectively analysed data of 452 patients with BPH who underwent ThuVEP from February 2012 to March 2016 in a single center. Patients were divided into three groups according to body mass index (BMI, kg/m
2 ): Normal weight (18.5 ≤ BMI < 25; Group A), overweight (25 ≤ BMI < 30; Group B) and obese (BMI ≥ 30; Group C), for a total of 412 patients evaluable for this study. Preoperative total serum prostate-specific antigen (PSA), digital rectal examination of the prostate, transrectal ultrasound (TRUS), renal ultrasound, urine culture, uroflowmetry, International Prostate Symptoms Score (IPSS), and Quality of Life (QoL) score were analyzed. Post-operative complications, hospital stay and days of catheterization, questionnaires and uroflowmetry at 1 and 3 months after surgery were evaluated. Preoperative data, surgical outcomes, complication rate and clinical outcomes were compared between groups., Results: The median age of patients was 69 years (Interquartile Range [IQR 10]). The preoperative median IPSS among groups was 19 (IQR 8.75), 20 (IQR 10), and 18 (IQR 10) respectively. At 1 and 3 months of follow-up, this value was 8 (IQR 7), 8 (IQR 4), 7 (IQR 5) and 5 (IQR 6.25), 5 (IQR 6), 6 (IQR 5), respectively (all p between groups > 0.05). There was no statistically significant difference among three groups as for hospital stay and days of catheterization ( p > 0.05)., Conclusion: Our results showed that ThuVEP was safe and feasible even in overweight patients with substantially enlarged prostate.- Published
- 2019
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31. Rectal Culture-Guided Targeted Antimicrobial Prophylaxis Reduces the Incidence of Post-Operative Infectious Complications in Men at High Risk for Infections Submitted to Transrectal Ultrasound Prostate Biopsy - Results of a Cross-Sectional Study.
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Boeri L, Fontana M, Gallioli A, Zanetti SP, Catellani M, Longo F, Mangiarotti B, and Montanari E
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- Aged, Aged, 80 and over, Anti-Bacterial Agents adverse effects, Anti-Bacterial Agents therapeutic use, Biopsy, Needle methods, Ciprofloxacin therapeutic use, Comorbidity, Cross-Sectional Studies, Diabetes Mellitus epidemiology, Disease Susceptibility, Drug Resistance, Multiple, Bacterial, Enterobacteriaceae drug effects, Enterobacteriaceae growth & development, Enterobacteriaceae Infections etiology, Humans, Incidence, Male, Middle Aged, Prostatitis etiology, Retrospective Studies, Risk Factors, Ultrasonography, Interventional, Urinary Tract Infections etiology, Antibiotic Prophylaxis methods, Biopsy, Needle adverse effects, Enterobacteriaceae isolation & purification, Enterobacteriaceae Infections prevention & control, Prostate pathology, Prostatitis prevention & control, Rectum microbiology, Urinary Tract Infections prevention & control
- Abstract
The role of rectal culture-guided antimicrobial prophylaxis (TAP) in reducing infectious complications (IC) after transrectal-ultrasound prostate biopsy (TRUSPBx) is conflicting. We assessed the prevalence of IC in a cohort of men at high risk for IC submitted to TRUSPBx and treated with either TAP or empirical prophylaxis (EAP). Data from 53 patients at high risk for IC undergoing TRUSPBx were collected. Patients who did not receive a rectal swab (RS) were treated with EAP with fluoroquinolones (FQs). Of those who received the RS, patients with FQ-susceptible organisms received ciprofloxacin while those with FQ-resistant organisms received TAP. Office visits were scheduled to investigate the rate of complication at day 7 and 30 after TRUSPBx. Comorbidities were scored with the Charlson Comorbidity Index (CCI). Descriptive statistics and logistic regression models detailed the association between clinical parameters and IC rate. Out of 53 men, 17 (32.1%) had RS while 36 (67.9%) did not. All RS cultures were positive for E. Coli and 4 (23.5%) reported FQ-resistant pathogens. Considering risk factors for IC, no difference was found in terms of CCI, rate of diabetes, UTIs or recent antibiotic utilization between groups. Overall, 12 (22.6%) men reported IC, with a greater proportion of them belonging to the group treated with EAP (30.6% vs 5.9%; p = 0.045). Of these, 9 (25.0%) patients, all treated with EAP, developed post biopsy UTIs. E. Coli sustained all UTIs and 7 (77.7%) were FQ resistant. At multivariable analysis, CCI≥1, a history of UTIs/prostatitis and recent antibiotic utilization (all p<0.04) were the most powerful predictors for ICs. In conclusion, we found that compared to EAP, TAP significantly reduces ICs, in men at high risk for post TRUSPBx IC. Patients at risk for IC, especially those with recent antibiotic utilization, CCI≥1 and a history of UTIs/prostatitis before biopsy, could benefit from TAP., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2017
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32. Retrograde intrarenal surgery (RIRS), regular and small sized percutaneous nephrolithotomy (PCNL) in daily practice: European Association of Urology Section of Urolithiasis (EULIS) Survey.
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Zanetti SP, Boeri L, Catellani M, Gallioli A, Trinchieri A, Sarica K, and Montanari E
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- Adult, Aged, Europe, Health Care Surveys, Humans, Length of Stay, Middle Aged, Patient Positioning, Practice Patterns, Physicians' statistics & numerical data, Ureteroscopy methods, Urology methods, Urology statistics & numerical data, Kidney Calculi surgery, Lithotripsy methods, Nephrostomy, Percutaneous methods, Practice Guidelines as Topic
- Abstract
Objective: A wide selection of both anterograde and retrograde mini-invasive procedures exist for stones' treatment. The 2016 European Association of Urology (EAU) guidelines still don't univocally define a best option. Our purpose is to give an overview on some European Stone Centers' customs and to compare real life clinical practice with statements of opinion leaders and Guidelines., Materials and Methods: In 2015 we performed a survey in 3 step about the spread of retrograde intrarenal surgery (RIRS) and percutaneous nephrolithotomy (PCNL) techniques among EAU Section of Urolithiasis (EULIS) members. The 1st and 2nd steps dealt with the definition of EULIS urologist and department by collecting personal opinions about the endoscopic techniques. The third step was about clinical results. This paper presents data from the first two steps., Results: Ninety-one people answered. Out of them, 80% are European and 42% work in Centres fully dedicated to stone treatment. In particular, 50% of responders perform more than 80 RIRS/year, 25% more than 80 PCNL/year, 48% more than 100 extracorporeal shock wave lithotripsy (SWL)/year. RIRS is mainly used to treat stones < 2 cm both as primary treatment and after SWL failure. 73% don't perform routine pre-stenting and 66% ordinarily use a ureteral sheath. Hospital stay for RIRS is 24h for 70% of responders. Regular PCNL is performed by 87% of the responders, MiniPCNL by 58%, Ultra-MiniPCNL by 23% and MicroPCNL by 28%. Pneumatic balloon dilation is the favourite dilation technique (49%). 37% of responders perform PCNL always in the supine position, 21% always in the prone one. Almost all the responders agree about using Mini, Ultra-Mini and MicroPCNL for 1-2 cm stones. Approximately 50% also use MiniPCNL for stones > 2 cm., Conclusion: our survey confirms the great heterogeneity existing in stones' treatment techniques in daily practice.
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- 2016
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33. High-density molecular characterization and association mapping in Ethiopian durum wheat landraces reveals high diversity and potential for wheat breeding.
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Mengistu DK, Kidane YG, Catellani M, Frascaroli E, Fadda C, Pè ME, and Dell'Acqua M
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- Chromosomes, Plant genetics, Genome, Plant genetics, Genome-Wide Association Study, Linkage Disequilibrium genetics, Quantitative Trait Loci genetics, Triticum physiology, Plant Breeding, Triticum genetics
- Abstract
Durum wheat (Triticum turgidum subsp. durum) is a key crop worldwide, and yet, its improvement and adaptation to emerging environmental threats is made difficult by the limited amount of allelic variation included in its elite pool. New allelic diversity may provide novel loci to international crop breeding through quantitative trait loci (QTL) mapping in unexplored material. Here, we report the extensive molecular and phenotypic characterization of hundreds of Ethiopian durum wheat landraces and several Ethiopian improved lines. We test 81 587 markers scoring 30 155 single nucleotide polymorphisms and use them to survey the diversity, structure, and genome-specific variation in the panel. We show the uniqueness of Ethiopian germplasm using a siding collection of Mediterranean durum wheat accessions. We phenotype the Ethiopian panel for ten agronomic traits in two highly diversified Ethiopian environments for two consecutive years and use this information to conduct a genome-wide association study. We identify several loci underpinning agronomic traits of interest, both confirming loci already reported and describing new promising genomic regions. These loci may be efficiently targeted with molecular markers already available to conduct marker-assisted selection in Ethiopian and international wheat. We show that Ethiopian durum wheat represents an important and mostly unexplored source of durum wheat diversity. The panel analysed in this study allows the accumulation of QTL mapping experiments, providing the initial step for a quantitative, methodical exploitation of untapped diversity in producing a better wheat., (© 2016 The Authors. Plant Biotechnology Journal published by Society for Experimental Biology and The Association of Applied Biologists and John Wiley & Sons Ltd.)
- Published
- 2016
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34. Development of SSR markers and genetic diversity analysis in enset (Ensete ventricosum (Welw.) Cheesman), an orphan food security crop from Southern Ethiopia.
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Olango TM, Tesfaye B, Pagnotta MA, Pè ME, and Catellani M
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- Alleles, Base Sequence, Ethiopia, Genetic Loci, Genetic Markers, Genetics, Population, Genomics, Humans, Molecular Sequence Data, Phylogeny, Polymorphism, Genetic, Sequence Alignment, Food Supply, Genetic Variation, Microsatellite Repeats genetics, Musaceae genetics
- Abstract
Background: Enset (Ensete ventricosum (Welw.) Cheesman; Musaceae) is a multipurpose drought-tolerant food security crop with high conservation and improvement concern in Ethiopia, where it supplements the human calorie requirements of around 20 million people. The crop also has an enormous potential in other regions of Sub-Saharan Africa, where it is known only as a wild plant. Despite its potential, genetic and genomic studies supporting breeding programs and conservation efforts are very limited. Molecular methods would substantially improve current conventional approaches. Here we report the development of the first set of SSR markers from enset, their cross-transferability to Musa spp., and their application in genetic diversity, relationship and structure assessments in wild and cultivated enset germplasm., Results: SSR markers specific to E. ventricosum were developed through pyrosequencing of an enriched genomic library. Primer pairs were designed for 217 microsatellites with a repeat size > 20 bp from 900 candidates. Primers were validated in parallel by in silico and in vitro PCR approaches. A total of 67 primer pairs successfully amplified specific loci and 59 showed polymorphism. A subset of 34 polymorphic SSR markers were used to study 70 both wild and cultivated enset accessions. A large number of alleles were detected along with a moderate to high level of genetic diversity. AMOVA revealed that intra-population allelic variations contributed more to genetic diversity than inter-population variations. UPGMA based phylogenetic analysis and Discriminant Analysis of Principal Components show that wild enset is clearly separated from cultivated enset and is more closely related to the out-group Musa spp. No cluster pattern associated with the geographical regions, where this crop is grown, was observed for enset landraces. Our results reaffirm the long tradition of extensive seed-sucker exchange between enset cultivating communities in Southern Ethiopia., Conclusion: The first set of genomic SSR markers were developed in enset. A large proportion of these markers were polymorphic and some were also transferable to related species of the genus Musa. This study demonstrated the usefulness of the markers in assessing genetic diversity and structure in enset germplasm, and provides potentially useful information for developing conservation and breeding strategies in enset.
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- 2015
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35. Indigenous knowledge, use and on-farm management of enset (Ensete ventricosum (Welw.) Cheesman) diversity in Wolaita, Southern Ethiopia.
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Olango TM, Tesfaye B, Catellani M, and Pè ME
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- Biodiversity, Conservation of Natural Resources, Ethiopia, Knowledge, Plants, Medicinal, Crops, Agricultural growth & development, Ethnobotany, Musaceae growth & development
- Abstract
Background: Ensete ventricosum (Welw.) Cheesman is a major food security crop in Southern Ethiopia, where it was originally domesticated and during millennia became pivotal crop around which an entire farming system has developed. Although its cultivation is highly localized, the enset-based farming system provides sustenance to more than 20 million people. Precise ethnobotanical information of intra-specific enset diversity and local knowledge on how communities maintain, manage and benefit from enset genetic resources is imperative for the promotion, conservation and improvement of this crop and its farming system., Methods: This study was conducted in Southern Ethiopia among the Wolaita 'enset culture' community. The research sample consisted of 270 households from 12 Kebeles (villages) representing three agro-ecological ranges. By establishing Participatory Rural Appraisal (PRA) based interactions and applying ethnobotanical interviewing methods of free-listing and open-ended questionnaires, information on the use and management of enset diversity, and its associated folk-biosystematics, food traditions and material culture was collected and analyzed., Results: While enset agriculture is seen as cultural heritage and identity for the Wolaita, enset intra-specific diversity holds scenic, prestige and symbolic values for the household. In the present study we recorded 67 enset landraces under cultivation, and through a comprehensive literature review we identified 28 landraces reported from other areas of Wolaita, but not encountered in our survey. Landraces, identified using 11 descriptors primarily related to agro-morphological traits, are named after perceived places of origin, agro-morphological characteristics and cooking quality attributes. Folk classification of enset is based on its domestication status, 'gender', agro-ecological adaptability and landrace suitability for different food and other uses (fiber, feed, medicinal). Enset as a food crop is used to prepare 10 different dishes in Wolaita, 8 of which are exclusively prepared using enset, and their consumption ranges from daily staple to specialty food in festive occasions and ceremonies. On-farm landrace diversity and richness is guided by household needs; its dynamics is managed through regular propagation, harvesting restrain, control of landrace composition and arrangement in the enset homegardens., Conclusions: This study reported on the knowledge system, socio-cultural process and community practices that drive the maintenance of intra-specific on-farm enset diversity in Wolaita, Southern Ethiopia. The information is crucial for developing community based complementary in situ and ex situ conservation strategies to foster conservation of enset genetic resources and associated indigenous knowledge system.
- Published
- 2014
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36. Plant production of anti-β-glucan antibodies for immunotherapy of fungal infections in humans.
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Capodicasa C, Chiani P, Bromuro C, De Bernardis F, Catellani M, Palma AS, Liu Y, Feizi T, Cassone A, Benvenuto E, and Torosantucci A
- Subjects
- Animals, Antibodies, Fungal biosynthesis, Antibodies, Fungal genetics, Antibodies, Fungal therapeutic use, Antibodies, Monoclonal biosynthesis, Antibodies, Monoclonal genetics, Antibodies, Monoclonal immunology, Antibodies, Monoclonal therapeutic use, Antigens, Fungal immunology, Aspergillus fumigatus immunology, Candida albicans growth & development, Candida albicans physiology, Candidiasis microbiology, Cell Adhesion immunology, Cell Line, Cell Wall immunology, Cryptococcus neoformans immunology, Female, Humans, Immunoglobulin Fc Fragments genetics, Immunoglobulin Fc Fragments metabolism, Immunoglobulin G genetics, Immunoglobulin G metabolism, Mice, Models, Animal, Mycoses microbiology, Mycoses therapy, Plant Leaves genetics, Plant Leaves metabolism, Plantibodies genetics, Plantibodies immunology, Plantibodies metabolism, Plantibodies therapeutic use, Rats, Recombinant Fusion Proteins immunology, Recombinant Fusion Proteins metabolism, Single-Chain Antibodies genetics, Single-Chain Antibodies metabolism, Nicotiana genetics, beta-Glucans metabolism, Antibodies, Fungal immunology, Candida albicans immunology, Candidiasis therapy, Immunotherapy, Nicotiana immunology, beta-Glucans immunology
- Abstract
There is an increasing interest in the development of therapeutic antibodies (Ab) to improve the control of fungal pathogens, but none of these reagents is available for clinical use. We previously described a murine monoclonal antibody (mAb 2G8) targeting β-glucan, a cell wall polysaccharide common to most pathogenic fungi, which conferred significant protection against Candida albicans, Aspergillus fumigatus and Cryptococcus neoformans in animal models. Transfer of this wide-spectrum, antifungal mAb into the clinical setting would allow the control of most frequent fungal infections in many different categories of patients. To this aim, two chimeric mouse-human Ab derivatives from mAb 2G8, in the format of complete IgG or scFv-Fc, were generated, transiently expressed in Nicotiana benthamiana plants and purified from leaves with high yields (approximately 50 mg Ab/kg of plant tissues). Both recombinant Abs fully retained the β-glucan-binding specificity and the antifungal activities of the cognate murine mAb against C. albicans. In fact, they recognized preferentially β1,3-linked glucan molecules present at the fungal cell surface and directly inhibited the growth of C. albicans and its adhesion to human epithelial cells in vitro. In addition, both the IgG and the scFv-Fc promoted C. albicans killing by isolated, human polymorphonuclear neutrophils in ex vivo assays and conferred significant antifungal protection in animal models of systemic or vulvovaginal C. albicans infection. These recombinant Abs represent valuable molecules for developing novel, plant-derived immunotherapeutics against candidiasis and, possibly, other fungal diseases., (© 2011 The Authors. Plant Biotechnology Journal © 2011 Society for Experimental Biology, Association of Applied Biologists and Blackwell Publishing Ltd.)
- Published
- 2011
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37. Long-lived photoinduced charges in donor-acceptor anthraquinone-substituted thiophene copolymers.
- Author
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Luzzati S, Scharber M, Catellani M, Giacalone F, Segura JL, Martin N, Neugebauer H, and Sariciftci NS
- Abstract
The photoinduced charge-transfer properties of a series of polyalkylthiophene copolymers, carrying anthraquinone substituents covalently linked to the conjugated backbone, have been studied in the solid state by photoinduced absorption (PA) and light-induced electron spin resonance (LESR) spectroscopy. The measurements indicate the formation of metastable charges arising from the photoinduced electron transfer from the polythiophene backbone to the anthraquinone moieties. At low temperatures (below 200 K), long-lived persistent charges are formed, exhibiting lifetimes that extend for several minutes; their recombination kinetics has been studied by following the formation and decay of the PA and LESR signals. The results are rationalized using a model originally proposed to describe the low-temperature recombination kinetics of long-lived photoexcited carriers in amorphous inorganic semiconductors. It is clearly evidenced that, in these polymers, the number of acceptor substituents in the chain, easily tuned by chemical tailoring, plays a key role in the photoexcitation scenario.
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- 2006
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38. Intragenic promoter adaptation and facilitated RNA polymerase III recycling in the transcription of SCR1, the 7SL RNA gene of Saccharomyces cerevisiae.
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Dieci G, Giuliodori S, Catellani M, Percudani R, and Ottonello S
- Subjects
- Amino Acid Sequence, Base Sequence, Binding Sites, Binding, Competitive, Chromatin chemistry, Chromatin metabolism, Cloning, Molecular, Deoxyribonuclease I metabolism, Kinetics, Models, Genetic, Molecular Sequence Data, Mutagenesis, Mutagenesis, Site-Directed, Mutation, Nucleosomes metabolism, Protein Binding, RNA metabolism, RNA, Transfer metabolism, Receptors, Complement metabolism, Saccharomyces cerevisiae enzymology, Saccharomyces cerevisiae metabolism, Transcription Factors, TFIII genetics, Promoter Regions, Genetic, RNA Polymerase III genetics, RNA, Small Cytoplasmic metabolism, Receptors, Complement genetics, Signal Recognition Particle metabolism, Transcription Factors, TFIII metabolism, Transcription, Genetic
- Abstract
The SCR1 gene, coding for the 7SL RNA of the signal recognition particle, is the last known class III gene of Saccharomyces cerevisiae that remains to be characterized with respect to its mode of transcription and promoter organization. We show here that SCR1 represents a unique case of a non-tRNA class III gene in which intragenic promoter elements (the TFIIIC-binding A- and B-blocks), corresponding to the D and TpsiC arms of mature tRNAs, have been adapted to a structurally different small RNA without losing their transcriptional function. In fact, despite the presence of an upstream canonical TATA box, SCR1 transcription strictly depends on the presence of functional, albeit quite unusual, A- and B-blocks and requires all the basal components of the RNA polymerase III transcription apparatus, including TFIIIC. Accordingly, TFIIIC was found to protect from DNase I digestion an 80-bp region comprising the A- and B-blocks. B-block inactivation completely compromised TFIIIC binding and transcription capacity in vitro and in vivo. An inactivating mutation in the A-block selectively affected TFIIIC binding to this promoter element but resulted in much more dramatic impairment of in vivo than in vitro transcription. Transcriptional competition and nucleosome disruption experiments showed that this stronger in vivo defect is due to a reduced ability of A-block-mutated SCR1 to compete with other genes for TFIIIC binding and to counteract the assembly of repressive chromatin structures through TFIIIC recruitment. A kinetic analysis further revealed that facilitated RNA polymerase III recycling, far from being restricted to typical small sized class III templates, also takes place on the 522-bp-long SCR1 gene, the longest known class III transcriptional unit.
- Published
- 2002
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