1
|
De Meijer L, Merlo D, Skibina O, Grobbee EJ, Gale J, Haartsen J, Maruff P, Darby D, Butzkueven H, Van der Walt A. Monitoring cognitive change in multiple sclerosis using a computerized cognitive battery. Mult Scler J Exp Transl Clin 2018; 4:2055217318815513. [PMID: 30559973 PMCID: PMC6293367 DOI: 10.1177/2055217318815513] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 10/11/2018] [Accepted: 11/01/2018] [Indexed: 11/15/2022] Open
Abstract
Background Cognitive monitoring that can detect short-term change in multiple sclerosis is challenging. Computerized cognitive batteries such as the CogState Brief Battery can rapidly assess commonly affected cognitive domains. Objectives The purpose of this study was to establish the acceptability and sensitivity of the CogState Brief Battery in multiple sclerosis patients compared to controls. We compared the sensitivity of the CogState Brief Battery to that of the Paced Auditory Serial Addition Test over 12 months. Methods Demographics, Expanded Disability Status Scale scores, depression and anxiety scores were compared with CogState Brief Battery and Paced Auditory Serial Addition Test performances of 51 patients with relapsing-remitting multiple sclerosis, 19 with secondary progressive multiple sclerosis and 40 healthy controls. Longitudinal data in 37 relapsing-remitting multiple sclerosis patients were evaluated using linear mixed models. Results Both the CogState Brief Battery and the Paced Auditory Serial Addition Test discriminated between multiple sclerosis and healthy controls at baseline (p<0.001). CogState Brief Battery tasks were more acceptable and caused less anxiety than the Paced Auditory Serial Addition Test (p<0.001). In relapsing-remitting multiple sclerosis patients, reaction time slowed over 12 months (p<0.001) for the CogState Brief Battery Detection (mean change -34.23 ms) and Identification (-25.31 ms) tasks. Paced Auditory Serial Addition Test scores did not change over this time. Conclusions The CogState Brief Battery is highly acceptable and better able to detect cognitive change than the Paced Auditory Serial Addition Test. The CogState Brief Battery could potentially be used as a practical cognitive monitoring tool in the multiple sclerosis clinic setting.
Collapse
Affiliation(s)
- L De Meijer
- Rijksuniversiteit, The Netherlands.,Erasmus MC Medical Center, The Netherlands
| | - D Merlo
- Eastern Health Clinical Research Unit, Monash University, Australia.,Department of Neuroscience, Monash University, Australia
| | - O Skibina
- Eastern Health Clinical Research Unit, Monash University, Australia.,Department of Neurology, Eastern Health, Australia.,Department of Neurology, Alfred Health, Australia
| | | | | | - J Haartsen
- Eastern Health Clinical Research Unit, Monash University, Australia.,Department of Neurology, Eastern Health, Australia
| | - P Maruff
- Department of Neuroscience, Monash University, Australia
| | - D Darby
- Department of Neurology, Eastern Health, Australia.,Florey Institute for Neuroscience and Mental Health, University of Melbourne, Australia
| | - H Butzkueven
- Eastern Health Clinical Research Unit, Monash University, Australia.,Department of Neuroscience, Monash University, Australia.,Department of Neurology, Eastern Health, Australia.,Department of Neurology, Alfred Health, Australia
| | - A Van der Walt
- Eastern Health Clinical Research Unit, Monash University, Australia.,Department of Neuroscience, Monash University, Australia.,Department of Neurology, Eastern Health, Australia.,Department of Neurology, Alfred Health, Australia.,These authors contributed equally
| |
Collapse
|
2
|
Abstract
A case of focal severe atypical hyperplasia-carcinoma in situ discovered during voluntary abortion is described. The patient did not undergo hysterectomy; after abortion, menses were regular and the endometrium was histologically normal at a control. Ten cases of endometrial epithelial neoplasia in pregnancy (9 cases) or in puerperium (1 case) found in the literature were reviewed. Although in some of them stromal invasion, which actually is the main prognostic indicator of endometrial neoplasia, was absent or not documented, all lesions were designated as adenocarcinoma. There is evidence that young women with a noninvasive neoplasm and desiring children or preservation of the uterus may be treated conservatively even if the lesion is detected in pregnancy or puerperium.
Collapse
|
3
|
Brain E, Corradengo D, Oriana N, Piccardo A, Matteucci F, Cortes J, Harbeck N, Würstlein R, Piris A, Alberini JL, Merlo DF, Degenhardt T, Turbiez I, Madar O, Monti M, Cesaro A, Rivitti E, Rollandi GA, Iacozzi M, Campazzi E, Campora S, Camporese D, Gennari A. Abstract OT3-03-03: Challenges faced across borders to open European academic multicentre projects: The ET-FES program part of the ERA-Net TRANSCAN JTC 2011. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-ot3-03-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
The activation of international non-profit clinical trials funded by the European Commission (EC) is challenging given the cross-borders regulations and the need to follow specific timelines according to EC rules. We report here the logistic procedures and challenges faced by 4 academic centres from 4 different countries from the European Union (EU) for the activation of such program in metastatic breast cancer (MBC).
Materials and Methods
The primary objective of the ET-FES program is to validate the use of a new radiotracer 18F Fluoroestradiol (FES), targeting estrogen receptors, as a tool to better predict endocrine responsiveness in MBC, with PET/CT. The trial is sponsored by EO Galliera (Genoa, Italy) and brings together Italy, Spain, France and Germany. In 10/2012, ET-FES was approved for funding from EC under the Seventh Framework Programme after the first ERA-NET TRANSCAN Joint Transnational Call (JTC) for Proposals (2011) on validation of new biomarkers for personalized cancer medicine.
Results
The official start of the program was set up on 06/2013 by the Italian Ministry of Health. Time to institutional review board and to competent authority (CA) approvals were 1.5 and 11, 2 and 5, 3 and 16, and 13 and 14+ months in Italy, France, Spain and Germany respectively. Overall, no blocking comment was raised by the ethical committees; only minor clinical and methodological issues were raised in Germany and Spain. Issues from CA were raised in all countries except France (12, 21 and 23 queries in Italy, Spain and Germany respectively), on quality aspects of 18F-FES investigational medicinal product dossier. At the sponsor level, time to final agreement signature with Advanced Accelerator Applications, the 18F-FES manufacturing company, required 13 months. First patient could be enrolled in Italy 14 and 22 months after ethical committee approval and after the official start of the ET-FES project respectively.
Conclusions
As of May 2016, of 310 patients expected, only 28 have been enrolled from Italy. From a regulatory viewpoint and acknowledging that 18F-FES does not have yet any marketing approval in the EU, the ET-FES program approval process was timely completed at the ethical committee level in Italy, France and Spain. Time to CA approval varied across countries and was timely achieved only in France, due to requirements varying from CA to CA, stressing the serious lack of harmonized procedures although intended by the 2001/20/EC directive. Regarding sponsor's responsibilities (i.e. Italy), the administrative procedures needed to activate this type of EU projects remain critical, appealing for more tolerant time span in order to satisfy all the legal aspects on contracts by public bodies, according to national rules and laws. One needs to be very conscious of these timelines when applying to EU/EC calls, especially when the time allowed for the conduction of research is limited (3 years here), unless jeopardizing the entire multicentre and multinational effort.
Citation Format: Brain E, Corradengo D, Oriana N, Piccardo A, Matteucci F, Cortes J, Harbeck N, Würstlein R, Piris A, Alberini J-L, Merlo DF, Degenhardt T, Turbiez I, Madar O, Monti M, Cesaro A, Rivitti E, Rollandi GA, Iacozzi M, Campazzi E, Campora S, Camporese D, Gennari A. Challenges faced across borders to open European academic multicentre projects: The ET-FES program part of the ERA-Net TRANSCAN JTC 2011 [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr OT3-03-03.
Collapse
Affiliation(s)
- E Brain
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - D Corradengo
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - N Oriana
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - A Piccardo
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - F Matteucci
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - J Cortes
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - N Harbeck
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - R Würstlein
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - A Piris
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - J-L Alberini
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - DF Merlo
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - T Degenhardt
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - I Turbiez
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - O Madar
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - M Monti
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - A Cesaro
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - E Rivitti
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - GA Rollandi
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - M Iacozzi
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - E Campazzi
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - S Campora
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - D Camporese
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| | - A Gennari
- Institut Curie / Hôpital René Huguenin, Saint-Cloud, France; E.O. Ospedali Galliera, Genova, Italy; IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori - I.R.S.T., Meldola, Italy; Vall d´Hebrón Institute of Oncology, Barcelona, Spain; University of Munich, Frauenkliniken Maistrasse-Innenstadt und Großhadern, Münich, Germany; IRCCS Azienda Osp. Univ. San Martino- IST, Genova, Italy; IBSA Institut Biochimique SA, Lugano, Switzerland; Covance, Milano, Italy; Advanced Accelerator Applications AAA, St Genis Pouilly, France
| |
Collapse
|
4
|
Pisano C, Balistreri CR, Merlo D, Argano V, Triolo OF, Palmeri C, Tulumello E, Ruvolo G. 185 * RED BLOOD CELL DISTRIBUTION WIDTH PREDICTS MORBIDITY AND MORTALITY AFTER AORTIC VALVE REPLACEMENT. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu276.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
5
|
Revelli A, Porcu E, Levi Setti PE, Delle Piane L, Merlo DF, Anserini P. Is letrozole needed for controlled ovarian stimulation in patients with estrogen receptor-positive breast cancer? Gynecol Endocrinol 2013; 29:993-6. [PMID: 24000936 DOI: 10.3109/09513590.2013.819083] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE To assess the advantages and disadvantages of using letrozole for controlled ovarian stimulation (COH) in young patients with estrogen receptor-positive (ER+) breast cancer, wishing to cryopreserve oocytes. DESIGN Retrospective cohort analysis. SETTING Sixteen Italian units for reproductive medicine and in vitro fertilization. METHODS Data of 50 ER+ breast cancer patients undergoing COH to cryopreserve oocytes before gonadotoxic chemotherapy with a letrozole plus gonadotropins (Le+Gn) protocol were compared with those of 25 young women with ER- breast cancer, submitted to COH using a protocol with gonadotropins alone (Gn-only). RESULTS The Le+Gn protocol implied a significantly lower total Gn consumption and allowed to maintain significantly lower circulating E2 levels at all checkpoints throughout stimulation (peak E2 value 446 ± 357 versus 1553 ± 908 pg/ml, respectively; p = 0.001). On the other side, the Le+Gn protocol allowed a significantly lower yield of oocytes available for cryostorage (6.6 ± 3.5 versus 8 ± 5, respectively; p = 0.038). CONCLUSIONS In breast cancer patients, the association of letrozole to Gn significantly reduces the number of oocytes available for cryostorage in comparison with the use of Gn alone. On the other side, it is associated with significantly lower E2 levels during the whole stimulation cycle, a safety issue that has been traditionally considered advantageous in case of ER+ cancers.
Collapse
Affiliation(s)
- A Revelli
- Phisiopathology of Reproduction and IVF Unit, Department of Surgical Sciences, S. Anna Hospital, University of Torino , Torino , Italy
| | | | | | | | | | | |
Collapse
|
6
|
Pesatori AC, Garte S, Popov T, Georgieva T, Panev T, Bonzini M, Consonni D, Carugno M, Goldstein BD, Taioli E, Fontana V, Stagi E, Bertazzi PA, Merlo DF. Early effects of low benzene exposure on blood cell counts in Bulgarian petrochemical workers. Med Lav 2009; 100:83-90. [PMID: 19382518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVES Only few studies have examined early hematological effects in human populations exposed to low benzene levels and their findings are controversial. We evaluated hematological outcomes (WBC, neutrophils, lymphocytes, monocytes, eosinophils, basophils, RBC, Hb, HCT MCV, platelets and MPV) in a population of 153 Bulgarian petrochemical workers exposed to benzene (range 0.01-23.9 ppm) and 50 unexposed subjects. METHODS Written informed consent was obtained and a self-administered questionnaire used to collect information on current smoking habits, lifestyle, and occupational activities. Exposure assessment was based on personal monitoring sampling the day before phlebotomy. Urinary trans-trans-muconic acid (t,t-MA) was determined at the beginning and end of the work shift. Based on individual airborne benzene measurements, study subjects were categorized in three exposure categories (referents, <1 and > or =1 ppm). Mean values of each hematologic outcomes in each exposure category were compared with the referent group using a multiple linear regression model adjusted for age, gender, current smoking habits and environmental toluene level. The influence of the CYP2E1 (RsaI and DraI) and NQO1 609C>T genetic polymorphisms on differential hematological parameters was also investigated. RESULTS No dose-response effect was observed for most of the examined hematological outcomes (WBC, lymphocytes, neutrophils, monocytes, RBC, Hb, HCT, MCV, platelets and MPV). The eosinophil count was inversely related to benzene exposure only among smokers. Conversely, basophils increased with increasing exposure. No effect on benzene hematotoxicity was found for any of the investigated polymorphisms. CONCLUSION In our study we did not find a decline in WBC and lymphocytes related to benzene exposure. A myeloproliferative effect of benzene is highly unlikely to explain the observed reduction in eosinophils and increase in basophils as it would lead to a concordant depression in all granulocyte subpopulations. Whether benzene effects at low doses are present in Caucasian populations remains uncertain, thus warranting further investigations.
Collapse
Affiliation(s)
- Angela Cecilia Pesatori
- Department of Occupational and Environmental Health, Clinica del Lavoro L. Devoto, University of Milan, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Merlo DF, Rossi L, Pellegrino C, Ceppi M, Cardellino U, Capurro C, Ratto A, Sambucco PL, Sestito V, Tanara G, Bocchini V. Cancer incidence in pet dogs: findings of the Animal Tumor Registry of Genoa, Italy. J Vet Intern Med 2008; 22:976-84. [PMID: 18564221 DOI: 10.1111/j.1939-1676.2008.0133.x] [Citation(s) in RCA: 211] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND The occurrence of spontaneous tumors in pet animals has been estimated in a few European and North American veterinary cancer registries with dissimilar methodologies and variable reference populations. OBJECTIVES The Animal Tumor Registry (ATR) of Genoa, Italy, was established in 1985 with the aim of estimating the occurrence of spontaneous tumors in dogs. METHODS Six thousand seven hundred and forty-three tumor biopsy specimens were received from local veterinarians in the Municipality of Genoa between 1985 and 2002. Three thousand and three hundred and three (48.9%) biopsy specimen samples were diagnosed as cancer and were coded according to the International Statistical Classification of Diseases (ICD-9). RESULTS Mammary cancer was the most frequently diagnosed cancer in female dogs, accounting for 70% of all cancer cases. Incidence of all cancers was 99.3 per 100,000 dog-years (95% CI: 93.6-105.1) in male dogs and 272.1 (95% CI: 260.7-283.6) in female dogs. The highest incidence rates were detected for mammary cancer (IR = 191.8, 95% CI: 182.2-201.4) and for non-Hodgkin's lymphoma (IR = 22.9, 95% CI: 19.7-26.5) in bitches and for non-Hodgkin's lymphoma (IR = 19.9, 95% CI: 17.4-22.7) and skin cancer (IR = 19.1, 95% CI: 16.6-21.8) in male dogs. All cancer IR increased with age ranging between 23.7 (95% CI: 18.4-30.1) and 763.2 (95% CI: 700.4-830.1) in bitches and between 16.5 (95% CI: 12.8-21.1) and 237.6 (95% CI: 209.1-269.0) in male dogs aged < or =3 years and >9-11 years. CONCLUSION This study summarizes the work done by the ATR of Genoa, Italy, between 1985 and 2002. All cancer incidence was 3 times higher in female than in male dogs, a difference explained by the high rate of mammary cancer observed in bitches. Because a biopsy specimen was required to make a cancer diagnosis, cancer rates for internal organs cancers, such as respiratory and digestive tract cancers may have been underestimated in the study population.
Collapse
Affiliation(s)
- D F Merlo
- Epidemiology and Biostatistics, Department of Epidemiology and Prevention, National Cancer Research Institute, Genoa, Italy.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Merlo DF, Knudsen LE, Matusiewicz K, Niebrój L, Vähäkangas KH. Ethics in studies on children and environmental health. J Med Ethics 2007; 33:408-13. [PMID: 17601869 PMCID: PMC2598138 DOI: 10.1136/jme.2006.016212] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2006] [Revised: 08/21/2006] [Accepted: 08/29/2006] [Indexed: 05/16/2023]
Abstract
Children, because of age-related reasons, are a vulnerable population, and protecting their health is a social, scientific and emotional priority. The increased susceptibility of children and fetuses to environmental (including genotoxic) agents has been widely discussed by the scientific community. Children may experience different levels of chemical exposure than adults, and their sensitivity to chemical toxicities may be increased or decreased in comparison with adults. Such considerations also apply to unborn (fetal exposure) and newborn (neonatal exposure) children. Therefore, research on children is necessary in both clinical and environmental fields, to provide age-specific relevant data regarding the efficacy and safety of medical treatments, and regarding the assessment of risk from unintended environmental exposure. In this context, the stakeholders are many, including children and their parents, physicians and public health researchers, and the society as a whole, with its ethical, regulatory, administrative and political components. The important ethical issues are information of participants and consent to participate. Follow-up and protection of data (samples and information derived from samples) should be discussed in the context of biobanks, where children obtain individual rights when they become adults. It is important to realise that there are highly variable practices within European countries, which may have, in the past, led to differences in practical aspects of research in children. A number of recommendations are provided for research with children and environmental health. Environmental research with children should be scientifically justified, with sound research questions and valid study protocols of sufficient statistical power, ensuring the autonomy of the child and his/her family at the time of the study and later in life, if data and samples are used for follow-up studies. When children are enrolled, we recommend a consent dyad, including (1) parental (or legal guardian) informed consent and (2) the child's assent and/or informed consent from older minors. For evaluation of the studies including children, a paediatrician should always be involved in the research ethics committee.
Collapse
Affiliation(s)
- D F Merlo
- Epidemiology and Biostatistics, Istituto Nazionale per la Ricerca sul Cancro, Largo Rosanna Benzi 10, 16132 Genova, Italy.
| | | | | | | | | |
Collapse
|
9
|
Merlo D, Mollinari C, Inaba Y, Cardinale A, Rinaldi AM, D'Antuono M, D'Arcangelo G, Tancredi V, Ragsdale D, Avoli M. Reduced GABAB receptor subunit expression and paired-pulse depression in a genetic model of absence seizures. Neurobiol Dis 2007; 25:631-41. [PMID: 17207629 DOI: 10.1016/j.nbd.2006.11.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2006] [Revised: 10/17/2006] [Accepted: 11/05/2006] [Indexed: 10/23/2022] Open
Abstract
Neocortical networks play a major role in the genesis of generalized spike-and-wave (SW) discharges associated with absence seizures in humans and in animal models, including genetically predisposed WAG/Rij rats. Here, we tested the hypothesis that alterations in GABA(B) receptors contribute to neocortical hyperexcitability in these animals. By using Real-Time PCR we found that mRNA levels for most GABA(B(1)) subunits are diminished in epileptic WAG/Rij neocortex as compared with age-matched non-epileptic controls (NEC), whereas GABA(B(2)) mRNA is unchanged. Next, we investigated the cellular distribution of GABA(B(1)) and GABA(B(2)) subunits by confocal microscopy and discovered that GABA(B(1)) subunits fail to localize in the distal dendrites of WAG/Rij neocortical pyramidal cells. Intracellular recordings from neocortical cells in an in vitro slice preparation demonstrated reduced paired-pulse depression of pharmacologically isolated excitatory and inhibitory responses in epileptic WAG/Rij rats as compared with NECs; moreover, paired-pulse depression in NEC slices was diminished by a GABA(B) receptor antagonist to a greater extent than in WAG/Rij rats further suggesting GABA(B) receptor dysfunction. In conclusion, our data identify changes in GABA(B) receptor subunit expression and distribution along with decreased paired-pulse depression in epileptic WAG/Rij rat neocortex. We propose that these alterations may contribute to neocortical hyperexcitability and thus to SW generation in absence epilepsy.
Collapse
Affiliation(s)
- D Merlo
- Istituto Superiore di Sanità, Dipartimento di Biologia Cellulare e Neuroscienze, 00161 Rome, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Marinaccio A, Scarselli A, Gorini G, Chellini E, Mastrantonio M, Uccelli R, Altavista P, Pirastu R, Merlo DF, Nesti M. Retrospective mortality cohort study of Italian workers compensated for silicosis. Occup Environ Med 2006; 63:762-5. [PMID: 16847031 PMCID: PMC2077997 DOI: 10.1136/oem.2006.027854] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/14/2006] [Indexed: 11/04/2022]
Abstract
OBJECTIVES To estimate cause specific mortality in a large cohort of Italian workers compensated for silicosis. METHODS The cohort included 14 929 subjects (14,098 men and 831 women) compensated for silicosis between 1946 and 1979, alive on 1 January 1980, and resident in Tuscany (a region of central Italy with 3,547,000 inhabitants). Mortality follow up ranged from 1980 to 1999. Vital status and the causes of death were determined by linkage with the regional mortality registry and with the national mortality database. The cohort mortality rates were compared to the rates of the local reference population. SMRs and their 95% confidence intervals were computed assuming a Poisson distribution of the observed deaths. Specific SMR analyses were performed according to the level of disability, the year of compensation assignment, and the job type. RESULTS A significant excess mortality was observed in male silicotics for cancer of the lung, trachea, and bronchus and cancer of the liver, respiratory diseases (silicosis, asbestosis, antracosilicosis, and other pneumoconiosis), and for tubercolosis. Statistically significant mortality excess was observed in female silicotics for respiratory diseases (specifically silicosis and other pneumoconiosis) and tuberculosis. Analyses for period of compensation assignment showed a twofold increased SMR for biliary tract cancer among female workers and for liver cancer among male workers compensated before 1970. CONCLUSIONS The excess mortality from respiratory tract cancers and respiratory tract diseases detected in Italian compensated silicotics are in agreement with previous epidemiological studies. Although the twofold increased risk for liver cancer among males is suggestive of a possible association with silica dust exposure, the finding needs to be confirmed.
Collapse
Affiliation(s)
- A Marinaccio
- ISPESL, Department of Occupational Medicine, Epidemiology Unit, Via Alessandria 220/E; 00198 Rome, Italy.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Puntoni R, Ceppi M, Casella C, Ugolini D, Gennaro V, Puntoni M, Vercelli M, Merlo DF. Increased incidence of cutaneous malignant melanoma among longshoremen in Genoa, Italy: the role of sunlight and occupational exposure. Occup Environ Med 2005; 62:270-1. [PMID: 15778261 PMCID: PMC1741001 DOI: 10.1136/oem.2004.018374] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
12
|
Merlo D, Di Stasi AMM, Bonini P, Mollinari C, Cardinale A, Cozzolino F, Wisden W, Garaci E. DNA repair in post-mitotic neurons: a gene-trapping strategy. Cell Death Differ 2005; 12:307-9. [PMID: 15665815 DOI: 10.1038/sj.cdd.4401572] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
|
13
|
Merlo DF, Garattini S, Gelatti U, Simonati C, Covolo L, Ceppi M, Donato F. A mortality cohort study among workers in a graphite electrode production plant in Italy. Occup Environ Med 2004; 61:e9. [PMID: 14739393 PMCID: PMC1740703 DOI: 10.1136/oem.2003.009357] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Graphite electrode manufacturing workers are exposed to coal tar and its volatiles containing a variety of polycyclic aromatic hydrocarbons (PAH), silica and graphite dusts, and asbestos. AIMS To investigate mortality from cancer and other diseases among workers in a graphite electrode production plant in Italy. METHODS A total of 1291 males actively employed between 1 January 1950 and 31 December 1989 who had worked at the plant for at least one year were studied. The follow up extended from 1950 to 1997. Standardised mortality ratios (SMR) and their 95% confidence intervals (CI) were computed using mortality rates for the Italian and regional male population. RESULTS Excess mortality was observed for all causes (SMR 1.44, CI 1.32 to 1.56), all cancers (SMR 1.27, CI 1.07 to 1.50), liver cancer (SMR 4.19, CI 2.68 to 6.23), silicosis (SMR 66.39, CI 52.56 to 82.7), and cirrhosis and other chronic diseases of the liver (SMR 1.87, CI 1.31 to 2.59) in comparison with the national male population. When regional rates were used to calculate the number of expected deaths, SMRs remained higher for silicosis (SMR 57.32, 42.11 to 76.22), and liver cancer (SMR 2.57, 1.57 to 3.97). Mortality from silicosis was increased in workers hired at young ages (<25 years, SMR 81.79; 25-34 years, SMR 82.73), and in workers aged <45 at death (SMR 333.3, CI 159.8 to 613). Mortality from liver cancer increased threefold (SMR 3.11, CI 1.78 to 5.05) in workers with more than 10 years of employment at the plant during the manufacture of Karbate products. CONCLUSIONS Results support the association between excess mortality from silicosis and occupational exposure to siliceous sands experienced during graphite electrode manufacturing. The observed excess mortality from liver cancer is compatible, to some extent, with exposures that may have occurred during the manufacture of phenolic and furfuryl resins treated products, although a role of lifestyle factors and viral infections cannot be excluded.
Collapse
Affiliation(s)
- D F Merlo
- Environmental Epidemiology and Biostatistics, Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy.
| | | | | | | | | | | | | |
Collapse
|
14
|
Cellini M, Alessandrini A, Bernabini B, Merlo D. Pseudodoubling of the optic disc: a colour Doppler imaging study. Ophthalmologica 2003; 217:370-2. [PMID: 12913329 DOI: 10.1159/000071354] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2002] [Accepted: 03/20/2003] [Indexed: 11/19/2022]
Abstract
Pseudodoubling of the optic disc is a rare clinical presentation. In these cases it is necessary to exclude retinal coloboma or atrophy following vascular or infectious diseases. We present a case of pseudodoubling of the optic disc in a woman with type 2 diabetes and arterial hypertension. Ophthalmoscopic examination of the fundus showed a disc-like lesion in the right eye and a diabetic retinopathy in the left eye. The lesion was evaluated with fluorescein angiography, neuroradiological and colour Doppler imaging investigations. Colour Doppler imaging confirmed the angiographic findings of anomalous vascularisation of the pseudopapilla and provides an analysis of the choroidal vessel anastomosis between the optic disc and the retinal lesion, revealing that the pseudodoubling in this patient was the result of a chorioretinal coloboma.
Collapse
Affiliation(s)
- M Cellini
- Department of Surgical Science A. Valsalva, 2nd Eye Clinic, University of Bologna, Bologna, Italy.
| | | | | | | |
Collapse
|
15
|
Abstract
Fragile X syndrome is an inherited cause of mental retardation. We used extra- and intracellular recordings in brain slices obtained from wild type and fragile X knockout mice to establish whether bath application of the cholinergic agent carbachol (5 microM) induces different responses in neurons of the subiculum, a limbic structure involved in learning and memory. We found that carbachol diminished excitatory post-synaptic responses induced by CA1 stratum radiatum stimulation in wild type mice, but caused an unexpected increase in knockout animals. Moreover, these responses augmented in knockout mice after carbachol washout, a phenomenon that resembled the muscarinic long-term potentiation seen in wild type mice during application of carbachol and GABA(A) receptor antagonists. We also used paired-pulse stimulation to determine whether the changes in synaptic excitability induced by carbachol were caused by pre- or post-synaptic mechanism. Under control conditions, this protocol induced facilitation in both wild type and knockout mice; in contrast, during carbachol application, this facilitatory effect was seen in wild type mice only. In conclusion, our data highlight for the first time differences in cholinergic and GABA-ergic mechanisms that may contribute to the phenotype of fragile X patients.
Collapse
Affiliation(s)
- M D'Antuono
- IRCCS Neuromed, Località Camerelle, 86077 Pozzilli (IS), Italy
| | | | | |
Collapse
|
16
|
Aller MI, Jones A, Merlo D, Paterlini M, Meyer AH, Amtmann U, Brickley S, Jolin HE, McKenzie ANJ, Monyer H, Farrant M, Wisden W. Cerebellar granule cell Cre recombinase expression. Genesis 2003; 36:97-103. [PMID: 12820171 DOI: 10.1002/gene.10204] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The cerebellum maintains balance and orientation, refines motor action, stores motor memories, and contributes to the timing aspects of cognition. We generated two mouse lines for making Cre recombinase-mediated gene disruptions largely confined to adult cerebellar granule cells. For this purpose we chose the GABA(A) receptor alpha6 subunit gene, whose expression marks this cell type. Here we describe mouse lines expressing Cre recombinase generated by 1) Cre knocked into the native alpha6 subunit gene by homologous recombination in embryonic stem cells; and 2) Cre recombined into an alpha6 subunit gene carried on a bacterial artificial chromosome (BAC) genomic clone. The fidelity of Cre expression was tested by crossing the mouse lines with the ROSA26 reporter mice. The particular alpha6BAC clone we identified will be valuable for delivering other gene products to cerebellar granule cells.
Collapse
Affiliation(s)
- M I Aller
- MRC Laboratory of Molecular Biology, Hills Road, Cambridge, UK
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Bedford FK, Kittler JT, Muller E, Thomas P, Uren JM, Merlo D, Wisden W, Triller A, Smart TG, Moss SJ. GABA(A) receptor cell surface number and subunit stability are regulated by the ubiquitin-like protein Plic-1. Nat Neurosci 2001; 4:908-16. [PMID: 11528422 DOI: 10.1038/nn0901-908] [Citation(s) in RCA: 194] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Controlling the number of functional gamma-aminobutyric acid A (GABA(A)) receptors in neuronal membranes is a crucial factor for the efficacy of inhibitory neurotransmission. Here we describe the direct interaction of GABA(A) receptors with the ubiquitin-like protein Plic-1. Furthermore, Plic-1 is enriched at inhibitory synapses and is associated with subsynaptic membranes. Functionally, Plic-1 facilitates GABA(A) receptor cell surface expression without affecting the rate of receptor internalization. Plic-1 also enhances the stability of intracellular GABA(A) receptor subunits, increasing the number of receptors available for insertion into the plasma membrane. Our study identifies a previously unknown role for Plic-1, a modulation of GABA(A) receptor cell surface number, which suggests that Plic-1 facilitates accumulation of these receptors in dendritic membranes.
Collapse
Affiliation(s)
- F K Bedford
- Medical Research Council Laboratory of Molecular Cell Biology and Department of Pharmacology, University College London, Gower Street, London WC1E 6BT, UK
| | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Campos ML, de Cabo C, Wisden W, Juiz JM, Merlo D. Expression of GABA(A) receptor subunits in rat brainstem auditory pathways: cochlear nuclei, superior olivary complex and nucleus of the lateral lemniscus. Neuroscience 2001; 102:625-38. [PMID: 11226699 DOI: 10.1016/s0306-4522(00)00525-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Inhibition by GABA is important for auditory processing, but any adaptations of the ionotropic type A receptors are unknown. Here we describe, using in situ hybridization, the subunit expression patterns of GABA(A) receptors in the rat cochlear nucleus, superior olivary complex, and dorsal and ventral nuclei of the lateral lemniscus. All neurons express the beta3 and gamma2L subunit messenger RNAs, but use different alpha subunits. In the dorsal cochlear nucleus, fusiform (pyramidal) and giant cells express alpha1, alpha3, beta3 and gamma2L. Dorsal cochlear nucleus interneurons, particularly vertical or tuberculoventral cells and cartwheel cells, express alpha3, beta3 and gamma2L. In the ventral cochlear nucleus, octopus cells express alpha1, beta3, gamma2L and delta. Spherical cells express alpha1, alpha3, alpha5, beta3 and gamma2L. In the superior olivary complex, the expression profile is alpha3, alpha5, beta3 and gamma2L. Both dorsal and ventral cochlear nucleus granule cells express alpha1, alpha6, beta3 and gamma2L; unlike their cerebellar granule cell counterparts, they do not express beta2, gamma2S or the delta subunit genes. The delta subunit's absence from cochlear nucleus granule cells may mean that tonic inhibition mediated by extrasynaptic GABA(A) receptors is less important for this cell type. In both the dorsal and ventral nuclei of the lateral lemniscus, alpha1, beta3 and gamma2L are the main subunit messenger RNAs; the ventral nucleus also expresses the delta subunit. We have mapped, using in situ hybridization, the subunit expression patterns of the GABA(A) receptor in the auditory brainstem nuclei. In contrast to many brain regions, the beta2 subunit gene and gamma2S splice forms are not highly expressed in auditory brainstem nuclei. GABA(A) receptors containing beta3 and gamma2L may be particularly well suited to auditory processing, possibly because of the unique phosphorylation profile of this subunit combination.
Collapse
Affiliation(s)
- M L Campos
- Instituto de Neurociencias, Universidad Miguel Hernández, 03550 San Juan, Alicante, Spain
| | | | | | | | | |
Collapse
|
19
|
Jones A, Paterlini M, Wisden W, Merlo D. Transgenic methods for directing gene expression to specific neuronal types: cerebellar granule cells. Prog Brain Res 2000; 124:69-80. [PMID: 10943117 DOI: 10.1016/s0079-6123(00)24008-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- A Jones
- MRC Laboratory of Molecular Biology, MRC Centre, Cambridge, UK
| | | | | | | |
Collapse
|
20
|
D'Ambrosi N, Cavaliere F, Merlo D, Milazzo L, Mercanti D, Volonté C. Antagonists of P2 receptor prevent NGF-dependent neuritogenesis in PC12 cells. Neuropharmacology 2000; 39:1083-94. [PMID: 10727719 DOI: 10.1016/s0028-3908(99)00213-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The pheochromocytoma PC12 cell line that develops neuronal characteristics of sympathetic cells after treatment with nerve growth factor (NGF) represents a well-established cellular model system for studying NGF signalling. Interesting information on the different mechanistic pathways of NGF can be obtained by adopting the pharmacological approach of inhibiting P2 receptors, expressed in naive PC12 cells and recognised as important biological mediators of neurotransmitters and growth factors. We show here that Basilen Blue, an antagonist of P2 receptor, reversibly prevents NGF-dependent neurite outgrowth with an IC(50) in the 5-10 microM range. Suramin, oxidised-ATP and diisothiocyanatostilbene-disulfonic acid, differently from other purinoceptor ligands, are also effective in this regard. NGF-dependent regeneration and stability of neurites, selected NGF-dependent extracellular and intracellular protein phosphorylations, binding of [(3)H] ATP to PC12 cell membranes are also modulated by Basilen Blue. On the contrary, cell adhesion, cellular duplication, 5'-nucleotidase activity, NGF-induced tyrosine autophosphorylation of TrkA receptors are not affected. NGF furthermore directly modulates the extracellular release of ATP and especially the levels of P2X(2) receptor protein in PC12 cells. In addition, extracellular ATP improves the neuritogenic effect of sub-optimal concentrations of NGF. Our study identifies P2 receptor ligands, particularly Basilen Blue, as useful tools to dissect different NGF-evoked functions, suggesting a mechanistic role for P2 receptors in the signalling pathways of NGF.
Collapse
Affiliation(s)
- N D'Ambrosi
- I.R.C.C.S. Santa Lucia, Via Ardeatina 306, 00179, Rome, Italy
| | | | | | | | | | | |
Collapse
|
21
|
Vercellini P, Cortesi I, De Giorgi O, Merlo D, Carinelli SG, Crosignani PG. Transvaginal ultrasonography versus uterine needle biopsy in the diagnosis of diffuse adenomyosis. Hum Reprod 1998; 13:2884-7. [PMID: 9804250 DOI: 10.1093/humrep/13.10.2884] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
To assess the reliability of transvaginal ultrasonography and uterine needle biopsy, used singly or in combination, in the diagnosis of diffuse adenomyosis, a prospective study with pathological confirmation of the diagnosis was performed. A total of 102 premenopausal women scheduled for hysterectomy because of menorrhagia and/or pelvic pain underwent preoperative transvaginal ultrasonography. After removal of the uterus, a single full-thickness myometrial biopsy specimen was taken from along the median line in the upper third of the posterior uterine wall, using a 14-gauge Trucut needle. Adenomyosis was diagnosed by the sonographer by the presence of indistinctly demarcated heterogeneous myometrial areas with distorted echotexture, and by the pathologist when the distance between the lower border of the endometrium and the affected myometrial area was more than one-half of a low power field. The prevalence of adenomyosis was 28% (29/102 patients). The sensitivity and specificity of transvaginal ultrasonography were 82.7 and 67.1% respectively, compared with 44.8 and 95.9% for uterine needle biopsy. The positive predictive values of the two tests were 50.0 and 81.2% respectively, and the negative predictive values 90.7 and 81.4%, likelihood ratios of a positive test 2.5 and 10.9, likelihood ratios of a negative test 0.3 and 0.6, and kappa indexes of agreement 0.42 and 0.47. Combining the tests did not improve the overall diagnostic performance. Both transvaginal ultrasonography and uterine needle biopsy demonstrated suboptimal test characteristics.
Collapse
Affiliation(s)
- P Vercellini
- Clinica Ostetrica e Ginecologica Luigi Mangiagalli, University of Milano, Italy
| | | | | | | | | | | |
Collapse
|
22
|
Vercellini P, Oldani S, De Giorgi O, Milesi M, Merlo D, Crosignani PG. Endometrial ablation with a vaporizing electrode. II. Clinical outcome of a pilot study. Acta Obstet Gynecol Scand 1998; 77:688-93. [PMID: 9688250 DOI: 10.1034/j.1600-0412.1998.770619.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND As a vaporizing electrode has been successfully used to treat submucous myomas, we evaluated its safety and efficacy in performing endometrial ablation. METHODS Forty consecutive women with established menorrhagia with (n=26) and without (n=14) submucous myomas were enrolled in a prospective, noncomparative, pilot study. Hysteroscopic endometrial vaporization was performed with pure cutting current set at 200 watts. RESULTS All procedures were completed without complications. Median (interquartile range, IQR) fluid deficit was 90 (0-200) ml and median (IQR) operating time 10 (7-12.5) min. A significant correlation was observed between operating time and fluid absorption (Spearman's test by ranks, r=0.47; p=0.002). The degree of difficulty of the operation was classified as none on 28 (70%) occasions, mild on 11 (27.5%) and moderate on one (2.5%). After a mean+/-s.d. follow-up of 20.3+/-2.4 months, amenorrhea or spotting were reported by 23 (57.5%) subjects, hypomenorrhea by 10 (25%), normal flows by six (15%), and menorrhagia by one (2.5%). The median (IQR) menstrual score calculated according to a pictorial blood loss assessment chart dropped from 282.5 (199-383) to 0 (0-15) (p<0.0001). Six (15%) subjects were very satisfied with the effect of surgery, 30 (75%) satisfied, two (5%) uncertain, one (2.5%) dissatisfied and one (2.5%) very dissatisfied. CONCLUSIONS The vaporizing electrode seems to combine the benefits of the cutting loop (speed, efficacy and possibility of removing myomas) and the roller-ball electrode (safety and limited fluid absorption) while avoiding their respective disadvantages, and may be considered an interesting alternative in the hysteroscopic treatment of menorrhagia.
Collapse
Affiliation(s)
- P Vercellini
- Clinica Ostetrica e Ginecologica Luigi Mangiagalli, University of Milano, Italy
| | | | | | | | | | | |
Collapse
|
23
|
Mellor JR, Merlo D, Jones A, Wisden W, Randall AD. Mouse cerebellar granule cell differentiation: electrical activity regulates the GABAA receptor alpha 6 subunit gene. J Neurosci 1998; 18:2822-33. [PMID: 9525999 PMCID: PMC6792580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
GABAA receptor alpha6 subunit gene expression marks cerebellar granule cell maturation. To study this process, we used the Deltaalpha6lacZ mouse line, which has a lacZ reporter inserted into the alpha6 gene. At early stages of postnatal cerebellar development, alpha6-lacZ expression is mosaic; expression starts at postnatal day 5 in lobules 9 and 10, and alpha6-lacZ is switched on inside-out, appearing first in the deepest postmigratory granule cells. We looked for factors regulating this expression in cell culture. Membrane depolarization correlates inversely with alpha6-lacZ expression: granule cells grown in 25 mM [K+]o for 11-15 d do not express the alpha6 gene, whereas cultures grown for the same period in 5 mM [K+]o do. This is influenced by a critical early period: culturing for >/=3 d in 25 mM [K+]o curtails the ability to induce the alpha6 gene on transfer to 5 mM [K+]o. If the cells start in 5 mM [K+]o, however, they still express the alpha6-lacZ gene in 25 mM [K+]o. In contrast to granule cells grown in 5 mM [K+]o, cells cultured in 25 mM [K+]o exhibit no action potentials, mEPSCs, or mIPSCs. In chronic 5 mM [K+]o, factors may therefore be released that induce alpha6. Blockade of ionotropic and metabotropic GABA and glutamate receptors or L-, N-, and P/Q-type Ca2+ channels did not prevent alpha6-lacZ expression, but inhibition of action potentials with tetrodotoxin blocked expression in a subpopulation of cells.
Collapse
Affiliation(s)
- J R Mellor
- Medical Research Council Laboratory of Molecular Biology, Cambridge, CB2 2QH, United Kingdom
| | | | | | | | | |
Collapse
|
24
|
Merlo D, Anelli R, Calissano P, Ciotti MT, Volonté C. Characterization of an ecto-phosphorylated protein of cultured cerebellar granule neurons. J Neurosci Res 1997; 47:500-8. [PMID: 9067859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Previous work identified the phosphorylation by extracellular ATP of an endogenous 45-kDa protein substrate and established the presence of ecto-protein kinase activity associated with cultured cerebellar granule neurons (Volonté et al.: J Neurochem 63:2028-2037, 1994). In this work, we characterize such ecto-phosphorylated 45-kDa protein substrate and its association with the cellular membrane. The total radioactive content of the 45-kDa protein is stable for the first 15 min after phosphorylation, and decreases about 70% in 30 min and 90% in approximately 2 hr. Rinsing the cells after the phosphorylating reaction causes a 50% removal of the incorporated radioactivity. Glycosidic residues are present on the 45-kDa ecto-protein, which is held in position on the cellular membrane through a specific glycosyl-phosphatidylinositol anchor. The extracellular incorporation of phosphate on the 45-kDa protein is not modulated by agents interfering with cytoskeleton stability, such as colchicine and taxol, or by gangliosides. The extracellular phosphorylation occurs mostly on serine residues, since the phosphate ester linkage is unstable at high pH and only antibodies raised against phosphoserine are capable of recognizing the 45-kDa ecto-protein.
Collapse
Affiliation(s)
- D Merlo
- Institute of Neurobiology, Consiglio Nazionale Ricerche, Rome, Italy
| | | | | | | | | |
Collapse
|
25
|
Abstract
Selected purinoceptor modulators were previously shown to prevent glutamate-evoked cytotoxicity in cerebellar granule neurons. In the same cellular system, we now identify and characterize the presence of P2 receptors. The binding of [3H]ATP to membranes of cerebellar granule neurons grows monotonically as a function of neuronal differentiation, is saturable and reaches steady state within 6 min. Scatchard plot of the equilibrium saturation data is curvilinear with a Kd value of 28 nM and a Bmax value of 87 pmol/ mg of protein for the high affinity binding sites and a Kd value of 1.5 microM and Bmax value of 1.2 nmol/mg of protein, for the more numerous low affinity binding sites. We also show that extracellular ATP increases the release, but not the uptake, of [3H]D-aspartate and that it furthermore potentiates the release of [3H]D-aspartate evoked by glutamate and KCI. ATP itself is released by cerebellar granule cultures and such release grows monotonically as a function of neuronal differentiation. These data are consistent with the role that ATP is believed to play as a cotransmitter for the central nervous system.
Collapse
Affiliation(s)
- D Merlo
- Institute of Neurobiology, C.N.R. Viale Marx, Rome, Italy.
| | | |
Collapse
|
26
|
Abstract
Primary cultures of granule neurons derived from cerebella of postnatal rats are endowed with Glu receptors. Glu receptor agonists exert a trophic influence on differentiating granule cells but, with maturation, the cells become vulnerable to excitatory amino acids. Here we show that the P2 purinoceptor antagonist basilen blue abolishes in rat cerebellar granule neurons the cytotoxic action of glutamate with an IC50 in the 10-20 microM range. Within the same concentrations, basilen blue inhibits binding of [3H] ATP to cerebellar granule cells, glutamate-evoked release (but not uptake) of [3H] D-aspartate and Ca2+ uptake. Furthermore, the extracellular phosphorylation of a major 45-kDa endogenous ecto-protein substrate of cerebellar granule neurons is inhibited with an IC50 of about 1 microM. Similar effects are elicited by 5-adenylylimidodiphosphate, a P2 purinoceptor agonist, when supplied to the neurons for 8 days previously to the addition of glutamate. Our data point to the use of P2 purinoceptor modulators as novel elements for understanding and controlling glutamate-mediated excitatory neurotoxicity and neurotransmission. We suggest a possible involvement of P2 purinoceptors in these actions.
Collapse
Affiliation(s)
- C Volonté
- Institute of Neurobiology, CNR, Rome, Italy
| | | |
Collapse
|
27
|
Abstract
Primary neuronal cultures from 8-day-old rat cerebellum were incubated in the presence of exogenously added 16 nM [gamma-32P]ATP. Phosphorylation of a 45-kDa endogenous protein was detected within 1 min and increased linearly for approximately 20 min. Unlike what was seen with [gamma-32P]ATP, in the presence of [32P]orthophosphate no visible phosphorylation of protein was detected after 10 min, but a different pattern of phosphorylation was obtained in 30 min. The phosphorylation of the 45-kDa protein was reduced by 80-90% in the presence of 1 microM unlabeled ATP, 5 U/ml of apyrase, or 0.01% trypsin but not 1 mM PO4(3-). Phosphorylation was inversely proportional to cell density and was unaffected by addition to the cells of 56 mM KCl or 100 microM glutamate for 3 min. The presence of exogenously added cellular protein extracts or pretreatment of the cells for up to 20 min in phosphorylation buffer also did not affect the observed phosphorylation of the 45-kDa protein. The phosphorylation was found to be insensitive to MgCl2 but inhibited in the presence of MnCl2 or NaF and in the absence of CaCl2. Analogues of ATP suppressed phosphorylation of the 45-kDa protein by 80-90%. A similar inhibition was obtained in the presence of ADP or AMP. In this study, we establish via several different means that the phosphorylation of the 45-kDa protein in primary neuronal granule cultures occurs extracellularly through an ectokinase activity, which is furthermore distinguishable from a series of other presently characterized ecto-protein enzymes and intracellular kinases.
Collapse
Affiliation(s)
- C Volonté
- Institute of Neurobiology, CNR, Rome, Italy
| | | | | | | |
Collapse
|
28
|
Volonte C, Ciotti MT, Merlo D. LiCl promotes survival of GABAergic neurons from cerebellum and cerebral cortex: LiCl induces survival of GABAergic neurons. Neurosci Lett 1994; 172:6-10. [PMID: 8084537 DOI: 10.1016/0304-3940(94)90649-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Previous studies showed that LiCl promotes short-term survival of PC12 cells after NGF or serum deprivation. In the present work, we investigate the survival effect of lithium on cerebellar granule primary cultures. While the total population of cerebellar neurons, mainly granule cells, showed only a short-term survival (about 20 h) in the presence of LiCl, the survival of 65-100% of the GABAergic interneurons originating from cerebellum and cerebral cortex at two different developmental stages was prolonged by 1-2 weeks. Optimal activity was elicited between 5 and 7 mM LiCl. The action of lithium required the presence of serum and persisted also after medium renewal. By direct visual inspection, LiCl promoted neuronal survival without apparently altering the morphological differentiation of the cells. Our studies thereby suggest a means to obtaining enriched populations of GABAergic neurons.
Collapse
Affiliation(s)
- C Volonte
- Institute of Neurobiology, CNR, Rome, Italy
| | | | | |
Collapse
|
29
|
Calissano P, Ciotti MT, Battistini L, Zona C, Angelini A, Merlo D, Mercanti D. Recombinant human insulin-like growth factor I exerts a trophic action and confers glutamate sensitivity on glutamate-resistant cerebellar granule cells. Proc Natl Acad Sci U S A 1993; 90:8752-6. [PMID: 8104340 PMCID: PMC47436 DOI: 10.1073/pnas.90.18.8752] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Cerebellar granule cells grown in the presence of a serum complex differentiate but are resistant to the lethal action of excitatory amino acids. When these cells are grown also in the presence of insulin-like growth factor I (IGF-I) they become fully susceptible to the toxic, lethal action of glutamate. The glutamate-sensitizing action of IGF-I is dependent on concentration (half-maximal effect at 2-4 ng/ml) and time (half-maximal effect at 2-4 days in vitro) and is paralleled by the appearance of functionally active, glutamate-activated, Ca2+ channels and of voltage-gated Na+ and late K+ channels. IGF-I-induced glutamate sensitivity is rapidly reversible (t1/2 = 30-60 min) after removal of this somatomedin. The action of IGF-I is not mimicked by IGF-II, nerve growth factor, basic or acidic fibroblast growth factor, platelet-derived growth factor, or tumor necrosis factor alpha. We postulate that the constitutive phenotype of cerebellar granule cells is glutamate-resistant and becomes responsive to excitatory amino acids under the action of epigenetic cues among which IGF-I may be one of those operative in vivo.
Collapse
Affiliation(s)
- P Calissano
- Institute of Neurobiology, Consiglio Nazionale delle Richerche, Rome, Italy
| | | | | | | | | | | | | |
Collapse
|
30
|
Mercanti D, Angelini A, Ciotti M, Eboli M, Galli C, Battistini L, Merlo D, Calissano P. Cerebellar neurones: Differentiation and modulation of sensitivity to excitotoxic treatment. Cytotechnology 1993; 11:S117-9. [PMID: 22358672 DOI: 10.1007/bf00746073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The neurite outgrowth and adhesion complex (NOAC), isolated from rabbit sera has been dissociated in its major components by reverse-phase chromatography in HPLC by using a C(18) column. SDS-PAGE analisys of the active fractions revealed the presence of three major bands of approximately 100, 70 and 50 kDa. Studies on the biological activity of NOAC were carried out on rat cerebellar granule cells. NOAC-cultured cells exhibit a marked resistance to excitotoxic stimuli carried by glutamate.
Collapse
Affiliation(s)
- D Mercanti
- Institute of Neurobiology, CNR, Viale Marx 15/43, 00137, Roma, Italy
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Candiani G, Vercellini P, Fedele L, Carinelli S, Merlo D, Arcaini L. Repair of the uterine cavity after hysteroscopic septal incision. Int J Gynaecol Obstet 1991. [DOI: 10.1016/0020-7292(91)90799-b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
32
|
Zanotti F, Mussida M, Merlo D, Milesi M, Aletti L. [High-grade sarcoma with areas of mullerian adenosarcoma of the uterus]. Ann Ostet Ginecol Med Perinat 1991; 112:29-35. [PMID: 1656835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This paper describes a case of mullerian adenosarcoma with sarcomatous overgrowth. This 75-year old woman presented with atypical vaginal bleeding and enlarged uterus. On ultrasonography the endometrium was described as "thick" (4 cm) with cysts and aggregates of sarcomatous cells were seen on VABRA curettage. TAH & BSO was performed. The polypoid intrauterine mass measured 10 cm in the largest size and protruded through the external orifice. It was yellow with scattered cysts at the base and hemorrhagic at the apex. Myometrial invasion was evident. Microscopically most of the tumor consisted of a fibrosarcoma like tissue. It contained rhabdomyoblastic elements and mitosis count was 15 or more for 10 HPF. A small part of the tumor shared the features of mullerian adenosarcoma with glands surrounded by condensed stroma. The pseudostratified glandular epithelium was ciliated and focally mucinous. Periglandular tissue was pleiomorphic and mitotically active. Immunohistochemically stromal cells showed a slight positive staining for vimentin and a strong positivity for smooth muscle specific alpha actin. With the exception of scattered cells, desmin and striated muscle specific actin were extensively negative.
Collapse
Affiliation(s)
- F Zanotti
- Laboratorio di Anatomia ed Istologia Patologica degli Istituti Clinici di Perfezionamento di Milano
| | | | | | | | | |
Collapse
|
33
|
Candiani GB, Vercellini P, Fedele L, Carinelli SG, Merlo D, Arcaini L. Repair of the uterine cavity after hysteroscopic septal incision. Fertil Steril 1990; 54:991-4. [PMID: 2245858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We performed a follow-up hysteroscopy with multiple biopsies at different intervals after surgery in 19 women who underwent hysteroscopic septal incision. Seven days after operation the sectioned areas were very evident and not epithelialized (3 patients). At 14 days, the incised zone was depressed with scattered epithelialization (5 subjects). At 1 month, the sectioned surfaces were still depressed and uniformly covered by thin endometrium (5 cases). After 2 months the uterine cavity was almost normal with minimal tendency to central fundal adhesions (6 women). Thus, spontaneous healing processes after hysteroscopic metroplasty progressed regularly and completely and there is probably no reason to delay attempts at pregnancy for longer than two cycles after surgery.
Collapse
Affiliation(s)
- G B Candiani
- University of Milano School of Medicine, Milano, Italy
| | | | | | | | | | | |
Collapse
|
34
|
dell'Agnola CA, Carmassi LM, Merlo D, Tadini B. Duration and severity of congenital hydronephrosis as a cause of smooth muscle deterioration in pyelo-ureteral junction obstruction. Z Kinderchir 1990; 45:286-90. [PMID: 2284874 DOI: 10.1055/s-2008-1042602] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A potential relationship between duration and severity of obstructive hydronephrosis and the histological structure of the upper urinary tract smooth musculature has been studied in a series of prenatally diagnosed cases. Between 1981 and 1988, fifty-five monolateral pyelo-ureteral junction obstructions (PUJO), prenatally diagnosed (16th-37th week of gestational age), underwent pyeloplasty between 4 and 90 days of life. Gestational age at the diagnosis, delta t (duration of hydronephrosis from first detection in utero to surgery) and V (volume of the hydronephrotic kidney) were related to the frequency of muscle hypotrophy and fibrosis of both pelvis and ureter just above and below the junction. A close correlation between duration (delta t) and the severity of the involvement of the smooth musculature of the upper urinary tract was found. The larger the volumes (V), the more severe the muscular damage. In the long-term follow-up, poor results were obtained only in 5 of the 19 newborn who had severe hypotrophy and fibrosis of the pelvis. In conclusion, in PUJO, the shorter the delta t and the lower the V, the better one expects the smooth musculature of the upper urinary tract to be.
Collapse
Affiliation(s)
- C A dell'Agnola
- Department of Pediatric Surgery, Postgraduate School, University of Milan, Italy
| | | | | | | |
Collapse
|
35
|
Carinelli SG, Merlo D, Cefis F, Pintucci JP, Vergani S, Gasparotto GC, Frigoli A, Mangili G, Benzi G, Ferrari A. [Histological aspects of endometrial epithelium ranging between atrophy and adenocarcinoma]. Ann Ostet Ginecol Med Perinat 1987; 108:281-303. [PMID: 3448973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
36
|
Loesch-Fries LS, Merlo D, Zinnen T, Burhop L, Hill K, Krahn K, Jarvis N, Nelson S, Halk E. Expression of alfalfa mosaic virus RNA 4 in transgenic plants confers virus resistance. EMBO J 1987; 6:1845-51. [PMID: 16453779 PMCID: PMC553567 DOI: 10.1002/j.1460-2075.1987.tb02442.x] [Citation(s) in RCA: 136] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Agrobacterium-mediated transfer from a binary vector was used to produce transgenic Nicotiana tabacum plants that expressed coat protein of the plant virus, alfalfa mosaic virus (AMV). Expression levels of the chimeric gene, which was under the control of the cauliflower mosaic virus 19S promoter, were determined in primary transformed plants, in the progeny from self-fertilization and in the progeny from crosses to normal tobacco. RNA transcripts that were of the expected size as well as a protein of the M(r) and antigenicity of AMV coat protein accumulated in the transgenic plants. Plants that expressed the highest levels of coat protein developed fewer primary infections following inoculation with two strains of AMV and developed systemic infection slower than did plants that did not express coat protein. Resistance was specifically against virions of the AMV strains. AMV RNA and the unrelated virus, tobacco mosaic virus, were as infectious on progeny that expressed coat protein as they were on progeny that did not. The relationship between the virus resistance expressed by these transgenic plants and that observed in virus cross-protection is discussed.
Collapse
Affiliation(s)
- L S Loesch-Fries
- Agrigenetics Advanced Science Company, 5649 East Buckeye Road, Madison, WI 53716, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Carinelli SG, Cattaneo M, Merlo D, Mussida M, Giudici MN, De Lauretis L, Boeri R, Rossi P, Benzi G, Cefis F. [Approach to computerization in a Section of Pathologic Anatomy of obstetrico-gynecological importance]. Ann Ostet Ginecol Med Perinat 1987; 108:41-52. [PMID: 3619276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
38
|
Bortolozzi G, Arnoletti E, Belloni C, Merlo D, Cattaneo M. [Neoplastic pathology of the endometrium associated with malignant epithelial tumors of the ovary. Case study of the 1972-1981 decade: 40 cases]. Ann Ostet Ginecol Med Perinat 1986; 107:200-6. [PMID: 3800212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
39
|
Dam M, Pizzolato G, Merlo D, Zanchin G, Massari S, Battistin L. Liposome-induced changes in the uptake of GABA and glutamate in mouse brain in vitro. Ital J Neurol Sci 1981; 2:375-7. [PMID: 6120920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|