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Tuchmann-Durand C, Roda C, Renard P, Mortamet G, Bérat CM, Altenburger L, de Larauz MH, Thevenet E, Cottart CH, Moulin F, Bouchereau J, Brassier A, Arnoux JB, Schiff M, Bednarek N, Lamireau D, Garros A, Mention K, Cano A, Finger L, Pelosi M, Brochet CS, Caccavelli L, Raphalen JH, Renolleau S, Oualha M, de Lonlay P. Systemic corticosteroids for the treatment of acute episodes of rhabdomyolysis in lipin-1-deficient patients. J Inherit Metab Dis 2023. [PMID: 36680547 DOI: 10.1002/jimd.12592] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 01/13/2023] [Accepted: 01/19/2023] [Indexed: 01/22/2023]
Abstract
Mutations in the LPIN1 gene constitute a major cause of severe rhabdomyolysis (RM). The TLR9 activation prompted us to treat patients with corticosteroids in acute conditions. In patients with LPIN1 mutations, RM and at-risk situations that can trigger RM have been treated in a uniform manner. Since 2015, these patients have also received intravenous corticosteroids. We retrospectively compared data on hospital stays by corticosteroid-treated patients vs. patients not treated with corticosteroids. Nineteen patients were hospitalized. The median number of admissions per patient was 21 overall and did not differ when comparing the 10 corticosteroid-treated patients with the 9 patients not treated with corticosteroids. Four patients in the non-corticosteroid group died during a RM (mean age at death: 5.6 years). There were no deaths in the corticosteroid group. The two groups did not differ significantly in the number of RM episodes. However, for the six patients who had RM and occasionally been treated with corticosteroids, the median number of RM episodes was significantly lower when intravenous steroids had been administered. The peak plasma creatine kinase level and the area under the curve were or tended to be higher in patients treated with corticosteroids-even after the exclusion of deceased patients or focusing on the period after 2015. The median length of stay (10 days overall) was significantly longer for corticosteroid-treated patients but was similar after the exclusion of deceased patients. The absence of deaths and the higher severity of RM observed among corticosteroid-treated patients could suggest that corticotherapy is associated with greater survival.
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Affiliation(s)
- Caroline Tuchmann-Durand
- Imagine Institute, Biotherapy Clinical Investigation Center, Biotherapy Department, Necker-Enfants-Malades University Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Célina Roda
- Université Paris Cité, Health Environmental Risk Assessment (HERA) Team, CRESS, INSERM, INRAE, Paris, France
- Faculté de Pharmacie de Paris, Université Paris Cité, Paris, France
| | - Perrine Renard
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Paris, France
| | - Guillaume Mortamet
- Pediatric Intensive Care Unit, Grenoble Alpes University Hospital, Grenoble, France
| | - Claire-Marine Bérat
- Reference Center for Inherited Metabolic Diseases, Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, G2M, MetabERN, Paris, France
| | - Lucile Altenburger
- Reference Center for Inherited Metabolic Diseases, Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, G2M, MetabERN, Paris, France
| | - Marie Hug de Larauz
- Imagine Institute, Biotherapy Clinical Investigation Center, Biotherapy Department, Necker-Enfants-Malades University Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Eloise Thevenet
- Imagine Institute, Biotherapy Clinical Investigation Center, Biotherapy Department, Necker-Enfants-Malades University Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Charles-Henry Cottart
- Faculté de Pharmacie de Paris, Université Paris Cité, Paris, France
- Biochemistry Unit, Biology Department, Assistance Publique Hôpitaux de Paris (AP-HP), Necker-Enfants-Malades University Hospital, Paris, France
| | - Florence Moulin
- Pediatric Intensive Care Unit for, Necker-Enfants-Malades University Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Juliette Bouchereau
- Reference Center for Inherited Metabolic Diseases, Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, G2M, MetabERN, Paris, France
| | - Anais Brassier
- Reference Center for Inherited Metabolic Diseases, Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, G2M, MetabERN, Paris, France
| | - Jean-Baptiste Arnoux
- Reference Center for Inherited Metabolic Diseases, Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, G2M, MetabERN, Paris, France
| | - Manuel Schiff
- Reference Center for Inherited Metabolic Diseases, Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, G2M, MetabERN, Paris, France
- Medical School, Université Paris Cité, Paris, France
| | - Nathalie Bednarek
- Intensive Care Unit and Competence Center for Inherited Metabolic Diseases, Reims University Hospital, Reims, France
| | - Delphine Lamireau
- Competence Center for Inherited Metabolic Diseases, Pellegrin University Hospital, Bordeaux, France
| | - Alexa Garros
- Competence Center for Inherited Metabolic Diseases, Grenoble Alpes University Hospital, Grenoble, France
| | - Karine Mention
- Reference Center for Inherited Metabolic Diseases, Jeanne de Flandre Hospital, MetabERN, Lille, France
| | - Aline Cano
- Reference Center for Inherited Metabolic Diseases, La Timone University Hospital, MetabERN, Marseille, France
| | - Lionel Finger
- Biochemistry Unit, Biology Department, Troyes Hospital, Troyes, France
| | - Michele Pelosi
- Reference Center for Inherited Metabolic Diseases, Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, G2M, MetabERN, Paris, France
| | | | - Laure Caccavelli
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Paris, France
- Reference Center for Inherited Metabolic Diseases, Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, G2M, MetabERN, Paris, France
| | - Jean-Herlé Raphalen
- Adult Intensive Care Unit, Necker-Enfants-Malades University Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Sylvain Renolleau
- Pediatric Intensive Care Unit for, Necker-Enfants-Malades University Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
- Medical School, Université Paris Cité, Paris, France
| | - Mehdi Oualha
- Pediatric Intensive Care Unit for, Necker-Enfants-Malades University Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
- Medical School, Université Paris Cité, Paris, France
| | - Pascale de Lonlay
- INSERM U1151, Institut Necker Enfants-Malades (INEM), Paris, France
- Reference Center for Inherited Metabolic Diseases, Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, G2M, MetabERN, Paris, France
- Medical School, Université Paris Cité, Paris, France
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Goetz V, Yang DD, Lacaille F, Pelosi M, Angoulvant F, Brassier A, Arnoux JB, Schiff M, Heilbronner C, Salvador E, Debray D, Oualha M, Renolleau S, Girard M, de Lonlay P. What are the clues for an inherited metabolic disorder in Reye syndrome? A single Centre study of 58 children. Mol Genet Metab 2022; 135:320-326. [PMID: 35221207 DOI: 10.1016/j.ymgme.2022.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/26/2022] [Accepted: 02/08/2022] [Indexed: 11/17/2022]
Abstract
OBJECTIVES Reye Syndrome is an acute encephalopathy with increased liver enzymes and blood ammonia, without jaundice. The prevalence of an underlying inherited metabolic disorder (IMD) is unclear, nor the clinical or biological factors directing toward this diagnosis. Our aims were to define these clues in a large series of patients. PATIENTS AND METHODS We retrospectively studied all patients with Reye admitted in our institution from 1995. We defined 3 groups: Group 1 with a confirmed IMD, Group 2 considered as free of IMD, Group 3 unclassified. Statistical analysis compared patients in Groups 1 and 2, to find criteria for a diagnosis of IMD. RESULTS Fifty-eight children were included; 41 (71%) had a confirmed IMD, 12 (20%) were free of IMD, and 5 remained unclassified. IMDs included Urea Cycle Disorders (51%), Fatty-Acid Oxidation Disorders (24%), ketogenesis defects (5%), other mitochondrial energy metabolism defects (10%), NBAS mutation (7%), Glycosylation Disorders (2%). In Group 2, the trigger was a viral infection, or a drug, deferasirox in three children. Univariate analysis showed that onset before 2 years-old, recurrent Reye and the association with rhabdomyolysis were significantly associated with IMD. Blood ammonia was a poor discriminating marker. All children were admitted into the intensive care unit, 23% needed continuous venovenous hemodialysis and one died from brain oedema. CONCLUSION Metabolic tests should be performed early in all cases of Reye, regardless of triggers. As they can be inconclusive, we suggest to systematically go to Next-Generation Sequencing study. These children should be transferred early to a specialized unit.
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Affiliation(s)
- Violette Goetz
- Reference Centre of Inherited Metabolic Diseases, Necker-Enfants malades Hospital, APHP, Filière G2M, Metab ERN, Université de Paris, Paris, France.
| | - David Dawei Yang
- Hopitaux de Paris, Pediatric Emergency Department, Necker-Enfants malades Hospital, Université de Paris, Paris, France
| | - Florence Lacaille
- Gastroenterology-Hepatology-Nutrition Unit, Reference Center for Rare Paediatric Liver Diseases, Necker-Enfants malades Hospital, APHP, Filière Filfoie, Université de Paris, Paris, France
| | - Michele Pelosi
- Reference Centre of Inherited Metabolic Diseases, Necker-Enfants malades Hospital, APHP, Filière G2M, Metab ERN, Université de Paris, Paris, France
| | - François Angoulvant
- Hopitaux de Paris, Pediatric Emergency Department, Necker-Enfants malades Hospital, Université de Paris, Paris, France
| | - Anais Brassier
- Reference Centre of Inherited Metabolic Diseases, Necker-Enfants malades Hospital, APHP, Filière G2M, Metab ERN, Université de Paris, Paris, France
| | - Jean-Baptiste Arnoux
- Reference Centre of Inherited Metabolic Diseases, Necker-Enfants malades Hospital, APHP, Filière G2M, Metab ERN, Université de Paris, Paris, France
| | - Manuel Schiff
- Reference Centre of Inherited Metabolic Diseases, Necker-Enfants malades Hospital, APHP, Filière G2M, Metab ERN, Université de Paris, Paris, France; Inserm UMR-S1163, Institut Imagine, Paris, France
| | - Claire Heilbronner
- Pediatric intensive Care Unit, Necker-Enfants malades Hospital, APHP, Université de Paris, Paris, France
| | - Elodie Salvador
- Pediatric intensive Care Unit, Necker-Enfants malades Hospital, APHP, Université de Paris, Paris, France
| | - Dominique Debray
- Pediatric hepatology unit, Reference Center for Rare Paediatric Liver Diseases, Necker-Enfants malades Hospital, APHP, Filière Filfoie, Université de Paris, Paris, France
| | - Mehdi Oualha
- Pediatric intensive Care Unit, Necker-Enfants malades Hospital, APHP, Université de Paris, Paris, France
| | - Sylvain Renolleau
- Pediatric intensive Care Unit, Necker-Enfants malades Hospital, APHP, Université de Paris, Paris, France
| | - Muriel Girard
- Pediatric hepatology unit, Reference Center for Rare Paediatric Liver Diseases, Necker-Enfants malades Hospital, APHP, Filière Filfoie, Université de Paris, Paris, France
| | - Pascale de Lonlay
- Reference Centre of Inherited Metabolic Diseases, Necker-Enfants malades Hospital, APHP, Filière G2M, Metab ERN, Université de Paris, Paris, France
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Pelosi M, Testet E, Le Lay S, Dugail I, Tang X, Mabilleau G, Hamel Y, Madrange M, Blanc T, Odent T, McMullen TPW, Alfò M, Brindley DN, de Lonlay P. Normal human adipose tissue functions and differentiation in patients with biallelic LPIN1 inactivating mutations. J Lipid Res 2017; 58:2348-2364. [PMID: 28986436 PMCID: PMC5711497 DOI: 10.1194/jlr.p075440] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 02/02/2017] [Revised: 08/23/2017] [Indexed: 12/22/2022] Open
Abstract
Lipin-1 is a Mg2+-dependent phosphatidic acid phosphatase (PAP) that in mice is necessary for normal glycerolipid biosynthesis, controlling adipocyte metabolism, and adipogenic differentiation. Mice carrying inactivating mutations in the Lpin1 gene display the characteristic features of human familial lipodystrophy. Very little is known about the roles of lipin-1 in human adipocyte physiology. Apparently, fat distribution and weight is normal in humans carrying LPIN1 inactivating mutations, but a detailed analysis of adipose tissue appearance and functions in these patients has not been available so far. In this study, we performed a systematic histopathological, biochemical, and gene expression analysis of adipose tissue biopsies from human patients harboring LPIN1 biallelic inactivating mutations and affected by recurrent episodes of severe rhabdomyolysis. We also explored the adipogenic differentiation potential of human mesenchymal cell populations derived from lipin-1 defective patients. White adipose tissue from human LPIN1 mutant patients displayed a dramatic decrease in lipin-1 protein levels and PAP activity, with a concomitant moderate reduction of adipocyte size. Nevertheless, the adipose tissue develops without obvious histological signs of lipodystrophy and with normal qualitative composition of storage lipids. The increased expression of key adipogenic determinants such as SREBP1, PPARG, and PGC1A shows that specific compensatory phenomena can be activated in vivo in human adipocytes with deficiency of functional lipin-1.
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Affiliation(s)
- Michele Pelosi
- Centre de Référence des Maladies Héréditaires du Métabolisme, Institut Imagine des Maladies Génétiques, Laboratoire de génétique des maladies autoinflammatoires monogéniques, INSERM UMR1163, Université Paris Descartes et Hôpital Necker-Enfants malades (Assistance publique - Hôpitaux de Paris), Paris, France
| | - Eric Testet
- Laboratoire de Biogenèse Membranaire-UMR 5200, CNRS, Université de Bordeaux, Villenave d'Ornon, France
| | - Soazig Le Lay
- INSERM, UMR1063, Université d'Angers, UBL, Angers, France
| | - Isabelle Dugail
- INSERM, U1166, Equipe 6, Université Pierre et Marie Curie, Paris, France
| | - Xiaoyun Tang
- Department of Biochemistry, Signal Transduction Research Group, University of Alberta, Edmonton, Alberta, Canada
| | | | - Yamina Hamel
- Centre de Référence des Maladies Héréditaires du Métabolisme, Institut Imagine des Maladies Génétiques, Laboratoire de génétique des maladies autoinflammatoires monogéniques, INSERM UMR1163, Université Paris Descartes et Hôpital Necker-Enfants malades (Assistance publique - Hôpitaux de Paris), Paris, France
| | - Marine Madrange
- Centre de Référence des Maladies Héréditaires du Métabolisme, Institut Imagine des Maladies Génétiques, Laboratoire de génétique des maladies autoinflammatoires monogéniques, INSERM UMR1163, Université Paris Descartes et Hôpital Necker-Enfants malades (Assistance publique - Hôpitaux de Paris), Paris, France
| | - Thomas Blanc
- Department of Pediatric Surgery and Urology, Hôpital Necker-Enfants malades-Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Thierry Odent
- Department of Pediatric Orthopedics, Hôpital Necker-Enfants malades-Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Todd P W McMullen
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Marco Alfò
- Dipartimento di Scienze Statistiche, Sapienza Università di Roma, Rome, Italy
| | - David N Brindley
- Department of Biochemistry, Signal Transduction Research Group, University of Alberta, Edmonton, Alberta, Canada
| | - Pascale de Lonlay
- Centre de Référence des Maladies Héréditaires du Métabolisme, Institut Imagine des Maladies Génétiques, Laboratoire de génétique des maladies autoinflammatoires monogéniques, INSERM UMR1163, Université Paris Descartes et Hôpital Necker-Enfants malades (Assistance publique - Hôpitaux de Paris), Paris, France
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Crusco M, Massoni F, Luzi E, Ricci P, Pelosi M, Corbosiero P, Rapp-Ricciardi M, Ricci S. Gambling and the need for new responses in Public Health with an addiction "sine substantia". Clin Ter 2016; 167:e162-e166. [PMID: 28051830 DOI: 10.7417/ct.2016.1962] [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] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
BACKGROUND The Gambling Disorder (GD) was recently defined as a behavioral addiction by the "The Diagnostic and Statistical Manual of Mental Disorders IV"( DSM-V) since the clinical, neurobiological and psychopathological similarities led it to be defined it as an addiction "sine substantia". The aim of this study is to formulate an "identikit" of the gambler, to evaluate a possible association between GD / emotional specific factors and the correlation between GD / substance abuse, GD / suicide. METHOD In the study, 41 subjects were included (31 males and 10 females) and all were diagnosed with GD. A questionnaire was distributed containing 24 questions deriving from South Oaks Gambling Screen and the DSM-IVTR. RESULTS The study showed that 51% of the respondents makes use of alcohol and / or drugs; that 73% of the patients started playing in order to relieve feelings of dysphoria and suffering consequences on work as well as family life (51%). A great deal of the respondents were indebted (39%) to the extent of needing to ask for loans from usurer (17%). Furthermore, 41% of the respondents in the sample showed that GD could be transformed into an alarming risk of suicide. DISCUSSION The correlation between GD and drug abuse may depend on the brain function and the neural circuits that support impulsive behavior and the gratification mechanisms. Emotional experiences (stress, low level of education, divorce, poor social support) could constitute a possible risk factor that increases the GD. The committed offenses related to gambling could be explained by "loss of control". CONCLUSIONS The results of the present study contributes to the body of knowledge regarding the size of phenomenon from a statistical and epidemiological point of view, suggesting the necessity for targeted information on the risks connected to GD in order to capture early warning signs which enables the intervention with suitable strategies.
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Affiliation(s)
- M Crusco
- Department of Anatomical sciences, histological, legal medicine and locomotor apparatus. University "Sapienza" of Rome, Italy
| | - F Massoni
- Department of Anatomical sciences, histological, legal medicine and locomotor apparatus. University "Sapienza" of Rome, Italy
| | - E Luzi
- Department of Anatomical sciences, histological, legal medicine and locomotor apparatus. University "Sapienza" of Rome, Italy
| | - P Ricci
- Department of Anatomical sciences, histological, legal medicine and locomotor apparatus. University "Sapienza" of Rome, Italy
| | - M Pelosi
- Department of Anatomical sciences, histological, legal medicine and locomotor apparatus. University "Sapienza" of Rome, Italy
| | - P Corbosiero
- Department of Anatomical sciences, histological, legal medicine and locomotor apparatus. University "Sapienza" of Rome, Italy
| | | | - S Ricci
- Department of Anatomical sciences, histological, legal medicine and locomotor apparatus. University "Sapienza" of Rome, Italy
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Crusco M, Susi B, Luzi E, Massoni F, Ricci P, Corbosiero P, Pelosi M, Ricci L, Ricci S. Risk factors correlating event falling to eventual medico-legal responsability. Clin Ter 2016; 167:e130-e136. [PMID: 27845492 DOI: 10.7417/ct.2016.1957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- M Crusco
- Dipartimento di Scienze Anatomiche, Istologiche, Medico legale e dell'Apparato locomotore. Università Sapienza Roma
| | - B Susi
- Direttore UOC Pronto Soccorso e Medicina d'Urgenza Policlinico Tor Vergata, Roma, Italia
| | - E Luzi
- Dipartimento di Scienze Anatomiche, Istologiche, Medico legale e dell'Apparato locomotore. Università Sapienza Roma
| | - F Massoni
- Dipartimento di Scienze Anatomiche, Istologiche, Medico legale e dell'Apparato locomotore. Università Sapienza Roma
| | - P Ricci
- Dipartimento di Scienze Anatomiche, Istologiche, Medico legale e dell'Apparato locomotore. Università Sapienza Roma
| | - P Corbosiero
- Dipartimento di Scienze Anatomiche, Istologiche, Medico legale e dell'Apparato locomotore. Università Sapienza Roma
| | - M Pelosi
- Dipartimento di Scienze Anatomiche, Istologiche, Medico legale e dell'Apparato locomotore. Università Sapienza Roma
| | - L Ricci
- Dipartimento di Scienze Anatomiche, Istologiche, Medico legale e dell'Apparato locomotore. Università Sapienza Roma
| | - S Ricci
- Dipartimento di Scienze Anatomiche, Istologiche, Medico legale e dell'Apparato locomotore. Università Sapienza Roma
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Park F, Russo K, Williams P, Pelosi M, Puddephatt R, Walter M, Leung C, Saaid R, Rawashdeh H, Ogle R, Hyett J. Prediction and prevention of early-onset pre-eclampsia: impact of aspirin after first-trimester screening. Ultrasound Obstet Gynecol 2015; 46:419-423. [PMID: 25678383 DOI: 10.1002/uog.14819] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Revised: 01/30/2015] [Accepted: 01/30/2015] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To examine the effect of a combination of screening and treatment with low-dose aspirin on the prevalence of early-onset pre-eclampsia (PE). METHODS This was a retrospective analysis of two consecutive cohorts of women screened for early PE. The first cohort was observed to determine whether algorithms developed to screen for PE at 11 to 13 + 6 weeks' gestation could be applied to our population. High-risk women in the second cohort were advised on their risk and offered aspirin (150 mg at night), with treatment starting immediately after screening. The prevalence of early PE and the proportion of women with PE delivering at 34-37 weeks' gestation were compared between the cohorts. RESULTS In the observational and interventional cohorts, 3066 and 2717 women, respectively, were screened. There were 12 (0.4%) cases of early PE in the observational cohort and one (0.04%) in the interventional cohort (P < 0.01). Among all women with PE delivering before 37 weeks, 25 (0.83%) were in the observational cohort and 10 (0.37%) in the interventional cohort (P = 0.03). CONCLUSIONS A strategy of first-trimester screening for early PE coupled with prescription of aspirin to the high-risk group appears to be effective in reducing the prevalence of early PE.
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Affiliation(s)
- F Park
- Central Clinical School, Faculty of Medicine, University of Sydney, Sydney, NSW, Australia
- RPA Women and Babies, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - K Russo
- Central Clinical School, Faculty of Medicine, University of Sydney, Sydney, NSW, Australia
| | - P Williams
- Central Clinical School, Faculty of Medicine, University of Sydney, Sydney, NSW, Australia
- Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - M Pelosi
- RPA Women and Babies, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - R Puddephatt
- RPA Women and Babies, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - M Walter
- RPA Women and Babies, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - C Leung
- Central Clinical School, Faculty of Medicine, University of Sydney, Sydney, NSW, Australia
| | - R Saaid
- RPA Women and Babies, Royal Prince Alfred Hospital, Sydney, NSW, Australia
- Department of Obstetrics and Gynaecology, University of Malaya, Kuala Lumpur, Malaysia
| | - H Rawashdeh
- RPA Women and Babies, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - R Ogle
- RPA Women and Babies, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - J Hyett
- Central Clinical School, Faculty of Medicine, University of Sydney, Sydney, NSW, Australia
- RPA Women and Babies, Royal Prince Alfred Hospital, Sydney, NSW, Australia
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Pelosi M, Alfò M, Martella F, Pappalardo E, Musarò A. Finite mixture clustering of human tissues with different levels of IGF-1 splice variants mRNA transcripts. BMC Bioinformatics 2015; 16:289. [PMID: 26370240 PMCID: PMC4570607 DOI: 10.1186/s12859-015-0689-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 07/29/2015] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND This study addresses a recurrent biological problem, that is to define a formal clustering structure for a set of tissues on the basis of the relative abundance of multiple alternatively spliced isoforms mRNAs generated by the same gene. To this aim, we have used a model-based clustering approach, based on a finite mixture of multivariate Gaussian densities. However, given we had more technical replicates from the same tissue for each quantitative measurement, we also employed a finite mixture of linear mixed models, with tissue-specific random effects. RESULTS A panel of human tissues was analysed through quantitative real-time PCR methods, to quantify the relative amount of mRNA encoding different IGF-1 alternative splicing variants. After an appropriate, preliminary, equalization of the quantitative data, we provided an estimate of the distribution of the observed concentrations for the different IGF-1 mRNA splice variants in the cohort of tissues by employing suitable kernel density estimators. We observed that the analysed IGF-1 mRNA splice variants were characterized by multimodal distributions, which could be interpreted as describing the presence of several sub-population, i.e. potential tissue clusters. In this context, a formal clustering approach based on a finite mixture model (FMM) with Gaussian components is proposed. Due to the presence of potential dependence between the technical replicates (originated by repeated quantitative measurements of the same mRNA splice isoform in the same tissue) we have also employed the finite mixture of linear mixed models (FMLMM), which allowed to take into account this kind of within-tissue dependence. CONCLUSIONS The FMM and the FMLMM provided a convenient yet formal setting for a model-based clustering of the human tissues in sub-populations, characterized by homogeneous values of concentrations of the mRNAs for one or multiple IGF-1 alternative splicing isoforms. The proposed approaches can be applied to any cohort of tissues expressing several alternatively spliced mRNAs generated by the same gene, and can overcome the limitations of clustering methods based on simple comparisons between splice isoform expression levels.
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Affiliation(s)
- Michele Pelosi
- Institute Pasteur Cenci-Bolognetti, DAHFMO-Unit of Histology and Medical Embryology, IIM, Sapienza University of Rome, Via A. Scarpa 16, 00161, Rome, Italy.
| | - Marco Alfò
- Dipartimento di Scienze Statistiche, Sapienza University of Rome, P. le A. Moro 5, 00185, Rome, Italy.
| | - Francesca Martella
- Dipartimento di Scienze Statistiche, Sapienza University of Rome, P. le A. Moro 5, 00185, Rome, Italy.
| | - Elisa Pappalardo
- Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford, OX1 3RF, UK.
| | - Antonio Musarò
- Institute Pasteur Cenci-Bolognetti, DAHFMO-Unit of Histology and Medical Embryology, IIM, Sapienza University of Rome, Via A. Scarpa 16, 00161, Rome, Italy. .,Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, Rome, 00161, Italy.
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Massoni F, Simeone C, Ricci P, Pelosi M, Ricci S. Coronary artery disease in thrombotic aneurysm of the abdominal aorta. Clin Ter 2014; 165:e419-22. [PMID: 25524198 DOI: 10.7417/ct.2014.1785] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Even if the rupture is the most common cause of death of patients with Abdominal Aortic Aneurysm (AAA) and the risk increases with the presence and the size of IntraLuminal Thrombosis (ILT), there are cases in which death occurs for other causes. The Authors present an autoptic report of considerable size AAA with ILT in a patient who died by heart failure due to CAD thrombotic and ischemic heart disease. A protective role of approved in the literature and the role of products resulting from the thrombotic formation could explain the death event.
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Affiliation(s)
- F Massoni
- Department of Anatomical sciences, histological, legal medicine and locomotor apparatus. University "Sapienza" of Rome, Italy
| | - C Simeone
- Department of Anatomical sciences, histological, legal medicine and locomotor apparatus. University "Sapienza" of Rome, Italy
| | - P Ricci
- Department of Anatomical sciences, histological, legal medicine and locomotor apparatus. University "Sapienza" of Rome, Italy
| | - M Pelosi
- Department of Anatomical sciences, histological, legal medicine and locomotor apparatus. University "Sapienza" of Rome, Italy
| | - S Ricci
- Department of Anatomical sciences, histological, legal medicine and locomotor apparatus. University "Sapienza" of Rome, Italy
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9
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Mamoune A, Bahuau M, Hamel Y, Serre V, Pelosi M, Habarou F, Nguyen Morel MA, Boisson B, Vergnaud S, Viou MT, Nonnenmacher L, Piraud M, Nusbaum P, Vamecq J, Romero N, Ottolenghi C, Casanova JL, de Lonlay P. A thermolabile aldolase A mutant causes fever-induced recurrent rhabdomyolysis without hemolytic anemia. PLoS Genet 2014; 10:e1004711. [PMID: 25392908 PMCID: PMC4230727 DOI: 10.1371/journal.pgen.1004711] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 08/26/2014] [Indexed: 01/19/2023] Open
Abstract
Aldolase A deficiency has been reported as a rare cause of hemolytic anemia occasionally associated with myopathy. We identified a deleterious homozygous mutation in the ALDOA gene in 3 siblings with episodic rhabdomyolysis without hemolytic anemia. Myoglobinuria was always triggered by febrile illnesses. We show that the underlying mechanism involves an exacerbation of aldolase A deficiency at high temperatures that affected myoblasts but not erythrocytes. The aldolase A deficiency was rescued by arginine supplementation in vitro but not by glycerol, betaine or benzylhydantoin, three other known chaperones, suggesting that arginine-mediated rescue operated by a mechanism other than protein chaperoning. Lipid droplets accumulated in patient myoblasts relative to control and this was increased by cytokines, and reduced by dexamethasone. Our results expand the clinical spectrum of aldolase A deficiency to isolated temperature-dependent rhabdomyolysis, and suggest that thermolability may be tissue specific. We also propose a treatment for this severe disease.
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Affiliation(s)
- Asmaa Mamoune
- INSERM U781, Institut Imagine des Maladies Génétiques, Université Paris Descartes et Centre de Référence des Maladies Héréditaires du Métabolisme, Hôpital Necker, AP-HP, Paris, France
| | - Michel Bahuau
- Département de Génétique, Hôpitaux Universitaires Henri-Mondor, Créteil, AP-HP, France
| | - Yamina Hamel
- INSERM U781, Institut Imagine des Maladies Génétiques, Université Paris Descartes et Centre de Référence des Maladies Héréditaires du Métabolisme, Hôpital Necker, AP-HP, Paris, France
| | - Valérie Serre
- "Mitochondria, Metals and Oxidative Stress" group, Jacques Monod Institute, UMR7592 CNRS, Paris Diderot University, Paris, France
| | - Michele Pelosi
- INSERM U781, Institut Imagine des Maladies Génétiques, Université Paris Descartes et Centre de Référence des Maladies Héréditaires du Métabolisme, Hôpital Necker, AP-HP, Paris, France
| | - Florence Habarou
- Metabolic biochemistry and INSERM U1124, University Paris Descartes, Hospital Necker Enfants Malades, Paris, France
| | | | - Bertrand Boisson
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, New York, United States of America; Unité Institut National de la Santé et de la Recherche Médicale U980, Laboratory of Human Genetics of Infectious Diseases, Imagine Institute; and Pediatric Hematology-Immunology Unit, Necker Hospital for Sick Children, University Paris Descartes, Paris, France
| | - Sabrina Vergnaud
- Département de Biochimie, Toxicologie et Pharmacologie, CHU de Grenoble, Centre de Référence Rhône-Alpes des Maladies NeuroMusculaires, Grenoble, France
| | - Mai Thao Viou
- Université Pierre et Marie Curie, UM 76, INSERM U974, CNRS UMR 7215, Institut de Myologie, GHU Pitié-Salpêtrière, AP-HP, Centre de Référence des Maladies Neuromusculaires, Paris, France
| | - Luc Nonnenmacher
- Université Pierre et Marie Curie, UM 76, INSERM U974, CNRS UMR 7215, Institut de Myologie, GHU Pitié-Salpêtrière, AP-HP, Centre de Référence des Maladies Neuromusculaires, Paris, France
| | - Monique Piraud
- Laboratoire Maladies Héréditaires du Métabolisme, Centre de Biologie et Pathologie Est, Hospices Civils de Lyon, Lyon, France
| | | | - Joseph Vamecq
- INSERM et Laboratoire de Biochimie et Biologie Moléculaire, HMNO, CBP, CHRU Lille, Lille, France
| | - Norma Romero
- Département de Biochimie, Toxicologie et Pharmacologie, CHU de Grenoble, Centre de Référence Rhône-Alpes des Maladies NeuroMusculaires, Grenoble, France
| | - Chris Ottolenghi
- Université Pierre et Marie Curie, UM 76, INSERM U974, CNRS UMR 7215, Institut de Myologie, GHU Pitié-Salpêtrière, AP-HP, Centre de Référence des Maladies Neuromusculaires, Paris, France
| | - Jean-Laurent Casanova
- Clinique Universitaire de Pédiatrie, Hôpital couple enfant, CHU de Grenoble, France
- Howard Hughes Medical Institute, New York, New York, United States of America
| | - Pascale de Lonlay
- INSERM U781, Institut Imagine des Maladies Génétiques, Université Paris Descartes et Centre de Référence des Maladies Héréditaires du Métabolisme, Hôpital Necker, AP-HP, Paris, France
- * E-mail:
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10
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Massoni F, Troili GM, Pelosi M, Ricci S. Perinatal testicular torsion and medicolegal considerations. Minerva Pediatr 2014; 66:229-232. [PMID: 24826979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Perinatal testicular torsion (PTT) is a very complex condition because of rarity of presentation and diagnostic and therapeutic difficulties. In presence of perinatal testicular torsion, the involvement of contralateral testis can be present also in absence of other indications which suggest the bilateral involvement; therefore, occurrences supported by literature do not exclude the use of surgery to avoid the risk of omitted or delayed diagnosis. The data on possible recovery of these testicles are not satisfactory, and treatment consists of an observational approach ("wait-and-see") or an interventional approach. The hypothesis of randomized clinical trials seems impracticable because of rarity of disease. The authors present a case of PTT, analyzing injuries due to clinical and surgical management of these patients, according to medicolegal profile. The delayed diagnosis and the choice of an incorrect therapeutic approach can compromise the position of healthcare professionals, defective in terms of skill, prudence and diligence. Endocrine insufficiency is an unfortunate event. The analysis of literature seems to support, because of high risk, a surgical approach aimed not only at resolution of unilateral pathology or prevention of a relapse, but also at prevention of contralateral testicular torsion.
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Affiliation(s)
- F Massoni
- Department of Anatomical, Histological Legal Medicine and Orthopedic Sciences La Sapienza University of Rome, Rome, Italy -
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11
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Yamamoto K, Troeberg L, Scilabra SD, Pelosi M, Murphy CL, Strickland DK, Nagase H. LRP-1-mediated endocytosis regulates extracellular activity of ADAMTS-5 in articular cartilage. FASEB J 2012; 27:511-21. [PMID: 23064555 DOI: 10.1096/fj.12-216671] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Aggrecan is a major matrix component of articular cartilage, and its degradation is a crucial event in the development of osteoarthritis (OA). Adamalysin-like metalloproteinase with thrombospondin motifs 5 (ADAMTS-5) is a major aggrecan-degrading enzyme in cartilage, but there is no clear correlation between ADAMTS-5 mRNA levels and OA progression. Here, we report that post-translational endocytosis of ADAMTS-5 by chondrocytes regulates its extracellular activity. We found 2- to 3-fold reduced aggrecanase activity when ADAMTS-5 was incubated with live porcine cartilage, resulting from its rapid endocytic clearance. Studies using receptor-associated protein (RAP), a ligand-binding antagonist for the low-density lipoprotein receptor-related proteins (LRPs), and siRNA-mediated gene silencing revealed that the receptor responsible for ADAMTS-5 clearance is LRP-1. Domain-deletion mutagenesis of ADAMTS-5 identified that the noncatalytic first thrombospondin and spacer domains mediate its endocytosis. The addition of RAP to porcine cartilage explants in culture increased the basal level of aggrecan degradation, as well as ADAMTS-5-induced aggrecan degradation. Notably, LRP-1-mediated endocytosis of ADAMTS-5 is impaired in chondrocytes of OA cartilage, with ∼90% reduction in protein levels of LRP-1 without changes in its mRNA levels. Thus, LRP-1 dictates physiological and pathological catabolism of aggrecan in cartilage as a key modulator of the extracellular activity of ADAMTS-5.
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Affiliation(s)
- Kazuhiro Yamamoto
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, London, UK
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12
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Elias J, Carbone A, Gaspar A, Blugerman G, Schavelzon D, Pelosi M, Pelosi M, Galich M. M514 LOCAL CARBOXYTHERAPY: NEW TECHNOLOGY FOR GYNECOLOGISTS AND OBSTETRICIANS TO ACCELERATE AND IMPROVE THE CLOSURE OF DEHISCENT SURGICAL WOUNDS. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61702-0] [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: 11/30/2022]
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13
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Elias J, Carbone A, Gaspar A, Galich M, Schavelzon D, Blugerman G, Pelosi M, Pelosi M. M098 CARBOXYTHERAPY LOCAL TREATMENT OF VAGINAL MUCOSA ATROPHY OR HYPOTROPHY OF VAGINAL MUCOSA AT MENOPAUSE AND POSTPARTUM. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61293-4] [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: 11/17/2022]
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14
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Andreoni V, Finoli C, Manfrin P, Pelosi M, Vecchio A. Studies on the accumulation of cadmium by a strain of Proteus mirabilis. FEMS Microbiol Ecol 2011. [DOI: 10.1111/j.1574-6941.1991.tb01723.x] [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: 11/28/2022] Open
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15
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Montuori P, Sarnataro C, Albertini P, Basile MR, Mainardi P, Russo I, Pelosi M, Sardelli P, Triassi M. [Environmental quality of the operating theatres in Campania: long lasting monitoring results]. Ann Ig 2007; 19:451-462. [PMID: 18210775] [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: 05/25/2023]
Abstract
In this study the microbiological, physical and chemical results of an investigation concerning the environmental conditions of operating theatres in 38 public hospitals of the Campania Government are presented. The analysis of the results has been made by considering specific standards suggested by national and international regulations. The results showed that 84% of the operating theatres presented normal microbiological values, in relation to the total bacterial load, while 16% did not. By considering the microclimatic monitoring 55% of the operating theatres showed normal values while 45% at least a microclimatic index did not. In relation to the concentrations of anaesthetics gases the survey pointed out that the nitrous oxides was within non prescribed environmental limits (50 ppm for N2O); while 15% of the halogenated was not in normal values.
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Affiliation(s)
- P Montuori
- Dipartimento di Scienze Mediche Preventive, Università degli Studi di Napoli Federico II".
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16
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Pelosi M, Marampon F, Zani BM, Prudente S, Perlas E, Caputo V, Cianetti L, Berno V, Narumiya S, Kang SW, Musarò A, Rosenthal N. ROCK2 and its alternatively spliced isoform ROCK2m positively control the maturation of the myogenic program. Mol Cell Biol 2007; 27:6163-76. [PMID: 17606625 PMCID: PMC1952159 DOI: 10.1128/mcb.01735-06] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [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: 01/09/2023] Open
Abstract
Signal transduction cascades involving Rho-associated kinases (ROCK), the serine/threonine kinases downstream effectors of Rho, have been implicated in the regulation of diverse cellular functions including cytoskeletal organization, cell size control, modulation of gene expression, differentiation, and transformation. Here we show that ROCK2, the predominant ROCK isoform in skeletal muscle, is progressively up-regulated during mouse myoblast differentiation and is highly expressed in the dermomyotome and muscle precursor cells of mouse embryos. We identify a novel and evolutionarily conserved ROCK2 splicing variant, ROCK2m, that is preferentially expressed in skeletal muscle and strongly up-regulated during in vivo and in vitro differentiation processes. The specific knockdown of ROCK2 or ROCK2m expression in C2C12 myogenic cells caused a significant and selective impairment of the expression of desmin and of the myogenic regulatory factors Mrf4 and MyoD. We demonstrate that in myogenic cells, ROCK2 and ROCK2m are positive regulators of the p42 and p44 mitogen-activated protein kinase-p90 ribosomal S6 kinase-eucaryotic elongation factor 2 intracellular signaling pathways and, thereby, positively regulate the hypertrophic effect elicited by insulin-like growth factor 1 and insulin, linking the multifactorial functions of ROCK to an important control of the myogenic maturation.
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Affiliation(s)
- Michele Pelosi
- EMBL Mouse Biology Unit, Campus Buzzati-Traverso, via Ramarini 32, 00016 Monterotondo-Scalo, Roma, Italy.
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17
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Longo PG, Laurenti L, Gobessi S, Petlickovski A, Pelosi M, Chiusolo P, Sica S, Leone G, Efremov DG. The Akt signaling pathway determines the different proliferative capacity of chronic lymphocytic leukemia B-cells from patients with progressive and stable disease. Leukemia 2006; 21:110-20. [PMID: 17024114 DOI: 10.1038/sj.leu.2404417] [Citation(s) in RCA: 123] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Chronic lymphocytic leukemia (CLL) B-cells are hyporesponsive to many proliferative signals that induce activation of normal B-lymphocytes. However, a heterogeneous response has recently been observed with immunostimulatory CpG-oligodeoxynucleotides (CpG ODN). We now show that CpG ODN induce proliferation mainly in CLL B-cells from patients with progressive disease and unmutated immunoglobulin V(H) genes, whereas G(1)/S cell cycle arrest and apoptosis are induced in leukemic B-cells from stable/V(H) mutated CLL. Examination of early signaling events demonstrated that all CLL B-cells respond to CpG ODN stimulation by degradation of the NF-kappaB inhibitor IkappaB and activation of the Akt, ERK, JNK and p38 MAPK kinases, but the magnitude and duration of the signaling response was greater in the proliferating cases. Pharmacological inhibition of these pathways showed that simultaneous activation of Akt, ERK and JNK is required for cell cycle progression and proliferation. Conversely, introduction of constitutively active Akt in nonproliferating CLL B-cells resulted in induction of cyclin A following CpG ODN stimulation, indicating that increased Akt activation is sufficient to overcome the hyporesponsiveness of these cells to proliferative signals. Thus, the magnitude of Akt signaling may determine the distinct responses observed in leukemic B-cells belonging to the different prognostic subgroups.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- B-Lymphocytes/immunology
- B-Lymphocytes/metabolism
- B-Lymphocytes/pathology
- Cell Cycle
- Cell Proliferation
- Cyclins/biosynthesis
- Disease Progression
- Female
- Genes, Immunoglobulin
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/metabolism
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- MAP Kinase Signaling System/drug effects
- Male
- Middle Aged
- Oligodeoxyribonucleotides/immunology
- Oligodeoxyribonucleotides/pharmacology
- Proto-Oncogene Proteins c-akt/metabolism
- Signal Transduction/drug effects
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Affiliation(s)
- P G Longo
- ICGEB Hematology Group, Monterotondo-Outstation, CNR Campus Adriano Buzzati-Traverso, Rome, Italy
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18
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Biagini R, Casadei R, Favale L, Salducca N, Erba F, Gigli M, Boriani S, Gamberini G, Rocca M, Briccoli A, Perin S, Pelosi M, Mercuri M. Vertebral hemi-resection for bone tumor with wide invasion of the vertebral canal: modified surgical method. Chir Organi Mov 2004; 89:293-8. [PMID: 16048050] [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: 05/03/2023]
Abstract
The authors describe a variation in the method of vertebral hemi-resection used for the treatment of neoplasms that present a wide invasion of the vertebral canal. This is followed by a review of the literature on the subject.
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Affiliation(s)
- R Biagini
- V Divisione e Centro Tumori dell'Apparato Locomotore-Istituto Ortopedico Rizzoli, Bologna, Italy
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19
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Romagnoli P, Strahan D, Pelosi M, Cantagrel A, van Meerwijk JP. A potential role for protein tyrosine kinase p56(lck) in rheumatoid arthritis synovial fluid T lymphocyte hyporesponsiveness. Int Immunol 2001; 13:305-12. [PMID: 11222499 DOI: 10.1093/intimm/13.3.305] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Rheumatoid arthritis (RA) synovial fluid (SF)-T lymphocytes appear relatively inactive in situ and respond only weakly to diverse stimuli ex vivo. To characterize the molecular defects underlying this hyporesponsiveness we analyzed the expression level of several proteins involved in TCR-proximal signal transduction. As compared to peripheral blood (PB)-T lymphocytes, SF-T cells from some (but not all) of the patients analyzed expressed lower levels of TCRalphabeta, CD3epsilon, TCRzeta, p56(lck) and LAT, while p59(fyn), phospholipase C-gamma1 and ZAP-70 expression was unaltered. Semi-quantitative analysis of T cells from several patients revealed that the degree of TCRzeta chain and p56(lck) modulation correlated statistically significantly with the level of SF-T cell hyporesponsiveness. The differential reactivity of p56(lck) specific monoclonal and polyclonal antibodies in SF-T but not PB-T lymphocytes indicated that p56(lck) modulation consists of a conformational change rather than loss of expression. Our results indicate that multiple signaling molecules can be modulated in RA SF-T cells and show for the first time a direct quantitative correlation between T cell hyporesponsiveness and modulation of TCRzeta and of p56(lck), a critical protein tyrosine kinase required for T cell activation.
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MESH Headings
- Adult
- Aged
- Antibodies, Monoclonal/immunology
- Arthritis, Rheumatoid/enzymology
- Arthritis, Rheumatoid/immunology
- Autoimmune Diseases/enzymology
- Autoimmune Diseases/immunology
- CD3 Complex
- Defensins
- Female
- Humans
- Knee Joint
- Lymphocyte Activation
- Lymphocyte Specific Protein Tyrosine Kinase p56(lck)/physiology
- Male
- Membrane Proteins/immunology
- Middle Aged
- Plant Proteins
- Protein Conformation
- Receptors, Antigen, T-Cell/analysis
- Receptors, Antigen, T-Cell/immunology
- Receptors, Antigen, T-Cell, alpha-beta/analysis
- Synovial Fluid/immunology
- T-Lymphocyte Subsets/immunology
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Affiliation(s)
- P Romagnoli
- Tolerance and Autoimmunity Section, INSERM U395, IFR 30, CHU Purpan, BP 3028, 31024 Toulouse Cedex 3, France
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20
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Pelosi M, Donella-Deana A. Localization, purification, and characterization of the rabbit sarcoplasmic reticulum associated calmodulin-dependent protein kinase. Biochemistry (Mosc) 2000; 65:259-68. [PMID: 10713557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
The Ca2+/calmodulin dependent protein kinase associated with the sarcoplasmic reticulum membranes (SR CaM kinase) plays a specific and important role in the modulation of both Ca2+ uptake and release functions of the sarcoplasmic reticulum itself. In this work we have localized a 60 kD SR CaM kinase in slow and fast twitch rabbit skeletal muscle fractions; the kinase was present in both the longitudinal and the junctional sarcoplasmic reticulum. We then developed a procedure for the purification of the active kinase from the longitudinal sarcoplasmic reticulum and performed biochemical and functional characterization of the enzyme. Differently from what was previously suggested, our analysis shows that the biochemical properties of the purified SR CaM kinase (Ca2+ sensitivity, K0.5 for calmodulin, Km for ATP, IC50 for the specific inhibitory peptide (290-309), autophosphorylation properties) are not significantly different from those of the soluble multifunctional CaM kinase II. Moreover, we show that the purified SR CaM kinase retains the ability to autophosphorylate in a Ca2+/calmodulin-dependent manner, becoming a Ca2+-independent enzyme. In the light of the knowledge of the rabbit SR CaM kinase biochemical properties, we propose and discuss the possibility that, under physiological conditions, the activity of the autophosphorylated kinase persists when the Ca2+ transient is over.
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Affiliation(s)
- M Pelosi
- Department of Biological Chemistry, University of Padova, Padova, 35121, Italy.
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21
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Abstract
Ultrasonography is currently the principal imaging modality for diagnosing cervical incompetence during pregnancy. Various technical factors, both patient and technologist/transducer related, may limit its evaluation for cervical incompetence. MRI is not dependent on these technical considerations. MRI may demonstrate a higher degree of soft tissue contrast than ultrasonography for depicting uterine anatomy. MRI may, in some instances, be more accurate in depicting cervical incompetence in the gravid patient. We present the first case of cervical incompetence in a pregnant patient diagnosed by MRI, in which ultrasonography failed to provide conclusive evidence of extra-uterine herniation of the amniotic sac.
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Affiliation(s)
- C Maldjian
- Diagnostic Imaging, Temple University Hospital, Philadelphia, PA 19140, USA
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22
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Abstract
The purpose of this paper is to describe the magnetic resonance imaging (MR) features of placenta accreta and percreta. We retrospectively reviewed MRI findings in four cases of placenta accreta/percreta to determine features which assist in identifying the presence and extent of placental implantation abnormality. All patients had ultrasound (US) examinations. Pathologic correlation was available in all cases. There were two cases of placenta percreta and two cases of placenta accreta. All cases were treated by hysterectomy. In the two cases of placenta percreta, the placenta demonstrated transmural extension through the uterus (percreta) on MRI. In the two cases of placenta accreta, the location of thinning in the uterine wall correlated with the location of placental invagination into the myometrium at pathology. US correlation was available in all four cases. Gray scale US did not demonstrate placental invasion in any of the four cases of placenta accreta/percreta, however, in two of three cases in which color Doppler was performed, there was flow at the uterine margin suspicious for implantation abnormality. In conclusion, MRI is useful for identifying the presence and extent of placenta accreta/percreta.
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Affiliation(s)
- C Maldjian
- Department of Diagnostic Imaging, Temple University Hospital, Philadelphia, PA 19140, USA
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23
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Pelosi M, Di Bartolo V, Mounier V, Mège D, Pascussi JM, Dufour E, Blondel A, Acuto O. Tyrosine 319 in the interdomain B of ZAP-70 is a binding site for the Src homology 2 domain of Lck. J Biol Chem 1999; 274:14229-37. [PMID: 10318843 DOI: 10.1074/jbc.274.20.14229] [Citation(s) in RCA: 103] [Impact Index Per Article: 4.1] [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: 11/06/2022] Open
Abstract
T-cell antigen receptor-induced signaling requires both ZAP-70 and Lck protein-tyrosine kinases. One essential function of Lck in this process is to phosphorylate ZAP-70 and up-regulate its catalytic activity. We have previously shown that after T-cell antigen receptor stimulation, Lck binds to ZAP-70 via its Src homology 2 (SH2) domain (LckSH2) and, more recently, that Tyr319 of ZAP-70 is phosphorylated in vivo and plays a positive regulatory role. Here, we investigated the possibility that Tyr319 mediates the SH2-dependent interaction between Lck and ZAP-70. We show that a phosphopeptide encompassing the motif harboring Tyr319, YSDP, interacted with LckSH2, although with a lower affinity compared with a phosphopeptide containing the optimal binding motif, YEEI. Moreover, mutation of Tyr319 to phenylalanine prevented the interaction of ZAP-70 with LckSH2. Based on these results, a gain-of-function mutant of ZAP-70 was generated by changing the sequence Y319SDP into Y319EEI. As a result of its increased ability to bind LckSH2, this mutant induced a dramatic increase in NFAT activity in Jurkat T-cells, was hyperphosphorylated, and displayed a higher catalytic activity compared with wild-type ZAP-70. Collectively, our findings indicate that Tyr319-mediated binding of the SH2 domain of Lck is crucial for ZAP-70 activation and consequently for the propagation of the signaling cascade leading to T-cell activation.
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Affiliation(s)
- M Pelosi
- Molecular Immunology Unit, Institut Pasteur, 25-28 Rue du Docteur Roux, 75724 Paris Cedex 15, France
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Di Bartolo V, Mège D, Germain V, Pelosi M, Dufour E, Michel F, Magistrelli G, Isacchi A, Acuto O. Tyrosine 319, a newly identified phosphorylation site of ZAP-70, plays a critical role in T cell antigen receptor signaling. J Biol Chem 1999; 274:6285-94. [PMID: 10037717 DOI: 10.1074/jbc.274.10.6285] [Citation(s) in RCA: 108] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Following T cell antigen receptor (TCR) engagement, the protein tyrosine kinase (PTK) ZAP-70 is rapidly phosphorylated on several tyrosine residues, presumably by two mechanisms: an autophosphorylation and a trans-phosphorylation by the Src-family PTK Lck. These events have been implicated in both positive and negative regulation of ZAP-70 activity and in coupling this PTK to downstream signaling pathways in T cells. We show here that Tyr315 and Tyr319 in the interdomain B of ZAP-70 are autophosphorylated in vitro and become phosphorylated in vivo upon TCR triggering. Moreover, by mutational analysis, we demonstrate that phosphorylation of Tyr319 is required for the positive regulation of ZAP-70 function. Indeed, overexpression in Jurkat cells and in a murine T cell hybridoma of a ZAP-70 mutant in which Tyr319 was replaced by phenylalanine (ZAP-70-Y319F) dramatically impaired anti-TCR-induced activation of the nuclear factor of activated T cells and interleukin-2 production, respectively. Surprisingly, an analogous mutation of Tyr315 had little or no effect. The inhibitory effect of ZAP-70-Y319F correlated with a substantial loss of its activation-induced tyrosine phosphorylation and up-regulation of catalytic activity, as well as with a decreased in vivo capacity to phosphorylate known ZAP-70 substrates, such as SLP-76 and LAT. Collectively, our data reveal the pivotal role of Tyr319 phosphorylation in the positive regulation of ZAP-70 and in TCR-mediated signaling.
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Affiliation(s)
- V Di Bartolo
- Molecular Immunology Unit, Department of Immunology, Institut Pasteur, 25 Rue du Docteur Roux, 75724 Paris Cedex 15, France
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Sacchetto R, Margreth A, Pelosi M, Carafoli E. Colocalization of the dihydropyridine receptor, the plasma-membrane calcium ATPase isoform 1 and the sodium/calcium exchanger to the junctional-membrane domain of transverse tubules of rabbit skeletal muscle. Eur J Biochem 1996; 237:483-8. [PMID: 8647089 DOI: 10.1111/j.1432-1033.1996.0483k.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The subcellular distribution of the calmodulin-stimulated plasma-membrane Ca(2+)-ATPase (PMCA) has been studied in rat and rabbit skeletal muscle cells by indirect (calmodulin gel overlays) and direct (Western blotting with specific antibodies) methods. It has also been studied in situ in immunocytochemistry experiments. The distribution of PMCA has been compared with that of the NA+/Ca2+ exchanger and of the dihydropyridine receptor, which has been studied by Western blotting with specific antibodies. Both PMCA and the Na+/Ca2+ exchanger had a dual localization, i.e., they were found in the plasma membrane and in the transverse-tubule fractions of the two main types of skeletal muscles studied. The pump and the exchanger were not diffusely distributed in the transverse-tubule-membrane system, but specifically confined to the membrane domain where the dihydropyridine receptor was also localized, i.e., the junctional membrane. Experiments with isoform-specific antibodies have shown that the pump isoform expressed in skeletal muscle is PMCA 1.
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Affiliation(s)
- R Sacchetto
- Dipartimento di Scienze Biomediche Sperimentali, Università di Padova, Italy
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Abstract
In this study we investigated the sarcoplasmic reticulum (SR), alongside myofibrillar phenotype, in muscle samples from five Myotonic Dystrophy (DM) patients and five control individuals. DM muscles exhibited as a common feature, a decrease in the slow isoform of myosin heavy chain (MHC) and of troponin C in myofibrils. We observed a match between myofibrillar changes and changes in SR membrane markers specific to fiber type, i.e. the fast (SERCA1) Ca(2+)-ATPase isoform increased concomitantly with a decrease of protein phospholamban (PLB), which in native SR membranes colocalizes with the slow (SERCA2a) SR Ca(2+)-ATPase, and regulates its activity depending on phosphorylation by protein kinases. Our results outline a cellular process selectively affecting slow-twitch fibers, and non-degenerative in nature, since neither the total number of Ca(2+)-pumps or of ryanodine receptor/Ca(2+)-release channels, or their ratio to the dihydropyridine receptor/voltage sensor in junctional transverse tubules, were found to be significantly changed in DM muscle. The only documented, apparently specific molecular changes associated with this process in the SR of DM muscle, are the defective expression of the slow/cardiac isoform of Ca(2+)-binding protein calsequestrin, together with an increased phosphorylation activity of membrane-bound 60 kDa Ca(2+)-calmodulin (CaM) dependent protein kinase. Enhanced phosphorylation of PLB by membrane-bound Ca(2+)-CaM protein kinase also appeared to be most pronounced in biopsy from a patient with a very high CTG expansion, as was the overall 'slow-to-fast' transformation of the same muscle biopsy. Animal studies showed that endogenous Ca(2+)-CaM protein kinase exerts a dual activatory role on SERCA2a SR Ca(2+)-ATPase, i.e. either by direct phosphorylation of the Ca(2+)-ATPase protein, or mediated by phosphorylation of PLB. Our results seem to be consistent with a maturational-related abnormality and/or with altered modulatory mechanisms of SR Ca(2+)-transport in DM slow-twitch muscle fibers.
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MESH Headings
- Adolescent
- Adult
- Aged
- Blotting, Western
- Ca(2+) Mg(2+)-ATPase/metabolism
- Chromosome Mapping
- DNA/analysis
- Electrophoresis, Polyacrylamide Gel
- Humans
- Isomerism
- Male
- Microtubules/metabolism
- Microtubules/ultrastructure
- Middle Aged
- Muscle Fibers, Fast-Twitch/metabolism
- Muscle Fibers, Fast-Twitch/pathology
- Muscle Fibers, Fast-Twitch/ultrastructure
- Muscle Fibers, Slow-Twitch/metabolism
- Muscle Fibers, Slow-Twitch/pathology
- Muscle Fibers, Slow-Twitch/ultrastructure
- Muscle Proteins/genetics
- Muscle Proteins/metabolism
- Muscle, Skeletal/enzymology
- Muscle, Skeletal/pathology
- Muscle, Skeletal/ultrastructure
- Muscular Dystrophies/enzymology
- Muscular Dystrophies/genetics
- Muscular Dystrophies/pathology
- Myosin Heavy Chains/metabolism
- Myotonin-Protein Kinase
- Phenotype
- Protein Serine-Threonine Kinases/genetics
- Protein Serine-Threonine Kinases/metabolism
- Sarcoplasmic Reticulum/enzymology
- Sarcoplasmic Reticulum/pathology
- Sarcoplasmic Reticulum/ultrastructure
- Troponin/metabolism
- Troponin C
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Affiliation(s)
- E Damiani
- Department of Biomedical Sciences, University of Padova, Italy
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Pelosi M, Pelosi M. Laparoscopic and open appendectomies. Surg Laparosc Endosc Percutan Tech 1995; 5:492-3. [PMID: 8612001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Apuzzio JJ, Pelosi M, Frisoli G, Ganesh V. Bacterial colonization of amniotic fluid in patients with intact membranes during labor. South Med J 1984; 77:1133-5. [PMID: 6484681 DOI: 10.1097/00007611-198409000-00020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Amniotic fluid from gravidas with intact membranes was obtained for bacteriologic culture at the time of cesarean section. The incidence of positive cultures from patients not in labor was 8%. When the length of labor was eight hours or less (mean 6.1 hours) and the membranes were intact, the incidence of positive cultures was 37%; in patients whose length of labor was 12 hours or less (mean 9.7 hours) with intact membranes, 55% of cultures were positive. The incidence of endomyometritis in patients with bacterial growth from the amniotic fluid cultures in each group was 33%, 33%, and 45%, respectively.
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Apuzzio JJ, Reyelt C, Pelosi M, Sen P, Louria DB. Prophylactic antibiotics for cesarean section: comparison of high- and low-risk patients for endomyometritis. Obstet Gynecol 1982; 59:693-8. [PMID: 7043345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The efficacy of ticarcillin in the prevention of post-cesarean section endomyometritis was studied in 259 women randomly given either the antibiotic or a placebo. The ticarcillin group received 6 g intravenously immediately after delivery. Then 22 of those patients were also given a second 3-g dose 6 to 8 hours after delivery. Among the 139 patients who received ticarcillin, endomyometritis developed in 44 (32%), as it did in 66 of 120 patients (55%) in the placebo group. These differences are highly significant (P = .002). Of the 259 patients in the study, 238 could be classified as to risk for endomyometritis developing. Among the 124 high-risk patients, 52 received a placebo and endomyometritis developed in 71%. Only 26 of the 72 high-risk patients who received ticarcillin (36%) were so infected. Among the low-risk patients, endomyometritis developed in 10 of 54 patients (18.5%) who received prophylaxis and in 24 of 60 patients who received placebo (40%). Ticarcillin appears to be effective in reducing the incidence of post-cesarean section endomyometritis in patients at high risk and in those at low risk. The number of pelvic examinations during labor was the most important single factor in the development of endomyometritis.
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Conti G, Moreschini G, Pelosi M. [Positive inotropic effect of coronary-active drug: oxyfedrine]. Minerva Cardioangiol 1980; 28:645-7. [PMID: 7465070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Pelosi M, Hung CT, Langer A, Khademi M, Harrigan JT. Renal carcinoma in pregnancy. Obstet Gynecol 1975; 45:461-4. [PMID: 1121376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A gravid patient presented with gross hematuria in the last trimester of pregnancy but did not permit diagnostic measures. After delivery a large abdominal mass, which proved to be renal cell carcinoma, was found. Previously reported cases are reviewed, and the importance of adequate workup of hematuria during pregnancy is emphasized.
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Langer A, Pelosi M, Hung CT, Devanesan M, Caterini H, Harrigan JT, Sama J. Comparison of sterilization by tubal ligation and hysterectomy. Surg Gynecol Obstet 1975; 140:235-8. [PMID: 1124473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A comparison was made between sterilization by hysterectomy and by tubal ligation at the time of cesarean section and as an interval procedure. All operations were done at one institution and, essentially, by the same physician population, allowing for promotion within the residency program. The major deterrent to hysterectomy was the associated high incidence of necessary blood transfusion. However, a hysterectomy does offer the benefits of a permanent and completely effective procedure and the removal of an organ which ultimately may be the source of other problems. If another pathologic condition exists, making ultimate hysterectomy likely, it is the procedure of choice for sterilization, avoiding risks, costs, and the inconvenience of another operation. Methods of elective sterilization must be individualized. If the patient is appraised of the increased risk of hysterectomy and desires this more definitive procedure on the basis of informed consent, the incidence of complications is not prohibitive. These should not deter the well trained surgeon but should mandate use of all available skills, intensive evaluation of the patient, and concerned recognition of the potential adverse consequences.
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Abstract
One hundred and eight preplanned cesarean hysterectomies have been evaluated in an effort to determine that advisability of prophylactic bilateral hypogastric artery ligation when there is anticipated heavy bleeding associated with surgery. The data indicates that prophylactic bilateral internal iliac artery ligation is of questionable value in reducing operative bleeding, which can be controlled by more conventional means. However, when used therapeutically, it may be a lifesaving operation. Familiarity with the procedure is necessary for all those performing operative obstetrics and gynecology.
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Hung CT, Pelosi M, Langer A, Harrigan JT. Blood gas measurements in the kyphoscoliotic gravida and her fetus: Report of a case. Am J Obstet Gynecol 1975; 121:287-9. [PMID: 234683 DOI: 10.1016/0002-9378(75)90664-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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