1
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Christian O, Spencer M, Ladyman M, Persico F, Gutierrez-Carazo E, Kadansky E, Temple T. Persistence of 2,4,6-triamino-1,3,5-trinitrobenzene in the environment. Environ Res 2023; 239:117378. [PMID: 37832768 DOI: 10.1016/j.envres.2023.117378] [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] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/29/2023] [Accepted: 10/10/2023] [Indexed: 10/15/2023]
Abstract
2,4,6-triamino-1,3,5-trinitrobenzene (TATB) is an Insensitive High Explosive (IHE) that is increasingly being used as a safer alternative to traditional energetic materials. However, the high thermal stability of TATB poses challenges for its disposal, particularly through existing open burning methods and its ability to remain in the environment for long period of time. Therefore, this study investigated the persistence of TATB in the environment by conducting small-scale experiments which were designed to examine the resistance of TATB to open burning and to assess unburnt residues. To evaluate the fate and transport of the unburnt materials in soil, laboratory-scale soil column transport studies were conducted to gauge the movement of TATB through soil. The results indicate that TATB exhibits a high resistance to burning, leaving unburnt materials that can persist in soil. The study emphasizes the importance of efficient disposal methods for explosives and highlights the need for further research to understand the environmental impact and toxicity of TATB.
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Affiliation(s)
- Olivia Christian
- Cranfield University, Centre for Defence Chemistry, Defence Academy of the United Kingdom, Shrivenham, SN6 8LA, UK
| | - Michael Spencer
- Cranfield University, Centre for Defence Chemistry, Defence Academy of the United Kingdom, Shrivenham, SN6 8LA, UK
| | - Melissa Ladyman
- Cranfield University, Centre for Defence Chemistry, Defence Academy of the United Kingdom, Shrivenham, SN6 8LA, UK
| | - Federica Persico
- Cranfield University, Centre for Defence Chemistry, Defence Academy of the United Kingdom, Shrivenham, SN6 8LA, UK.
| | - Encina Gutierrez-Carazo
- Cranfield University, Centre for Defence Chemistry, Defence Academy of the United Kingdom, Shrivenham, SN6 8LA, UK
| | - Evie Kadansky
- Cranfield University, Centre for Defence Chemistry, Defence Academy of the United Kingdom, Shrivenham, SN6 8LA, UK
| | - Tracey Temple
- Cranfield University, Centre for Defence Chemistry, Defence Academy of the United Kingdom, Shrivenham, SN6 8LA, UK
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2
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Persico F, Coulon F, Ladyman M, López CF, Temple T. Evaluating the effect of insensitive high explosive residues on soil using an environmental quality index (EQI) approach. Sci Total Environ 2023; 869:161797. [PMID: 36716874 DOI: 10.1016/j.scitotenv.2023.161797] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/19/2023] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
The environmental impact of Insensitive High Explosive (IHE) detonation residues to soil quality was assessed using a series of outdoor soil mesocosms. Two different soils were used including a pristine sandy soil and a land-degraded soil collected from a training range. Both soils were spiked with an IHE mixture comprised of 53 % NTO, 32 % DNAN and 15 % RDX at three different concentrations 15, 146 and 367 mg/kg respectively. The concentration levels were derived from approximate residues from 100 detonations over a 2 week training period. A set of five physico-chemical and biological indicators representative of the two soils were selected to develop environmental quality indexes (EQI). It was found that none of the concentrations tested for the pristine soil affected the chemical, biological and physical indicators, suggesting no decrease in soil quality. In contrast, the EQI for the degraded soil was reduced by 24 %, mainly due to a decrease in the chemical and biological components of the soil. Therefore, it is concluded that depending on the soil health status, IHE residues can have minor or severe consequences on soil health. Further studies are needed to determine the environmental impact of IHE on soil and water especially in the case where a larger number of detonations are more likely to be carried out on a training range.
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Affiliation(s)
- Federica Persico
- Cranfield University, Centre for Defence Chemistry, Defence Academy of the United Kingdom, Shrivenham, SN6 8LA, UK.
| | - Frederic Coulon
- Cranfield University, School of Water, Energy and Environment, Cranfield, MK43 0AL, UK
| | - Melissa Ladyman
- Cranfield University, Centre for Defence Chemistry, Defence Academy of the United Kingdom, Shrivenham, SN6 8LA, UK
| | - Carmen Fernández López
- Centro Universitario de la Defensa. Universidad Politécnica de Cartagena. C/Coronel López Peña S/N, Santiago de La Ribera, 30720 Murcia, Spain
| | - Tracey Temple
- Cranfield University, Centre for Defence Chemistry, Defence Academy of the United Kingdom, Shrivenham, SN6 8LA, UK
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3
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Persico F, Coulon F, Ladyman M, Temple T. Development of an environmental hazard-based rating assessment for defence-related chemical compounds in ecological soil systems. Environ Int 2022; 166:107392. [PMID: 35810545 DOI: 10.1016/j.envint.2022.107392] [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] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 06/29/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
Environmental hazard-based methods are commonly used to categorise the severity of chemical contamination to ecological soil systems, although a traffic-light approach (green, amber, red) has never been used to assess these consequences. A traffic light approach is an easy to interpretate data as it has a clear visual display which can provide an early warning approach for stakeholders to identify areas that require further investigation. This approach should be underpinned by extensive research data and systematic methods of development. However, the extent of reliable data available for specific chemicals can be limited and therefore decision making may rely on expert judgement. Therefore, in this study, an environmental hazard-based rating methodology was developed by combining the guidelines from the European Chemical Agency (ECHA) and the USEPA for Predicted Non-effect Concentration (PNEC) and Ecological Soil Screening Levels (Eco-SSL) for defence-related chemicals (2,4,6-trinitrotoluene (TNT), 1,3,5-trinitro-1,3,5-triazinane (RDX), cypermethrin, perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS)). The developed hazard-based rating assessment was design to categorise the chemicals into low, medium and high environmental hazards priority to inform and ease the decision-making process for contaminated areas to ensure that sustainable operations are carried out.
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Affiliation(s)
- Federica Persico
- Cranfield University, Centre for Defence Chemistry, Defence Academy of the United Kingdom, Shrivenham SN6 8LA, UK.
| | - Frederic Coulon
- Cranfield University, School of Water, Energy and Environment, Cranfield MK43 0AL, UK.
| | - Melissa Ladyman
- Cranfield University, Centre for Defence Chemistry, Defence Academy of the United Kingdom, Shrivenham SN6 8LA, UK.
| | - Tracey Temple
- Cranfield University, Centre for Defence Chemistry, Defence Academy of the United Kingdom, Shrivenham SN6 8LA, UK.
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4
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Crocetto F, Barone B, Manfredi C, Trama F, Romano L, Romeo M, Russo G, Sicignano E, Persico F, Aveta A, Spirito L, Napolitano L, Imbimbo C, Tarantino G. Are insulin resistance and non-alcoholic fatty liver disease associated with Peyronie's disease? A pilot study. J Physiol Pharmacol 2022; 73. [PMID: PMID: 35639037 DOI: 10.26402/jpp.2022.1.05] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 02/28/2022] [Indexed: 06/15/2023]
Abstract
Risk factors for Peyronie's disease (PD) are serum lipid abnormalities, hypertension and type 2 diabetes mellitus (T2DM). Oxidative stress and inflammation are key-players in the pathogenesis of arterial diseases, leading to insulin resistance (IR), which is a major determinant of non-alcoholic fatty liver disease (NAFLD). We studied the potential relationship between PD, IR, and NAFLD. Forty-nine male patients were enrolled, fulfilling the well-accepted diagnostic criteria of stable PD. Fifty male individuals without PD, well-matched for age and BMI, were selected as the control group. Comorbidities (T2DM and hypertension), as well as the lipid profile and the glucometabolic asset, were evaluated. The triglycerides/HDL ratio (TG/HDL-C ratio) with a cut-off of ≥3 and the triglycerides-glucose index (TyG) with an optimal cut-point of 8.5 were used for diagnosis of IR and NAFLD, respectively. NAFLD diagnosis was confirmed by the presence of bright liver at ultrasonography. Hypertension was found more frequently in PD patients than in no-PD subjects (P=0.017), independently of age (P=0.99). Both IR and NAFLD were significantly associated with the presence of PD in our population of men (P=0.043 and 0.0001, respectively), no matter how old (P=0.11 and 0.74, respectively). At logistic regression, NAFLD was the only predictor of the PD presence (p=0.021). The AUROC of TyG to predict PD was 0.7437 (sensitivity 67.35% and specificity 80%) with a percentage of correctly classified patients of 73.74%. Oxidative stress markers were significantly associated with NAFLD. Testosterone level was significantly low in the subjects with NAFLD in cross-sectional analyses. Both factors, i.e., oxidative stress and hypogonadism, are central to PD pathogenesis. In conclusion, NAFLD and IR are strongly associated with PD. The pathogenic link between these conditions and the underlying mechanisms are only hypothetical and thoroughly summarized in the discussion.
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Affiliation(s)
- F Crocetto
- Department of Neurosciences, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Naples, Italy
| | - B Barone
- Department of Neurosciences, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Naples, Italy.
| | - C Manfredi
- Department of Woman Child and of General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - F Trama
- Andrology and Urogynecology Clinic, Santa Maria Terni Hospital, University of Perugia, Terni, Italy
| | - L Romano
- Department of Neurosciences, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Naples, Italy
| | - M Romeo
- Hepatogastroenterology Division, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - G Russo
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - E Sicignano
- Department of Neurosciences, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Naples, Italy
| | - F Persico
- Department of Urology, A.O.R.N. A. Cardarelli, Naples, Italy
| | - A Aveta
- Department of Neurosciences, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Naples, Italy
| | - L Spirito
- Department of Neurosciences, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Naples, Italy
| | - L Napolitano
- Department of Neurosciences, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Naples, Italy
| | - C Imbimbo
- Department of Neurosciences, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Naples, Italy
| | - G Tarantino
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", Naples, Italy
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5
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Persico F, Temple T, Ladyman M, Gilroy‐Hirst W, Guiterrez‐Carazo E, Coulon F. Quantitative Environmental Assessment of Explosive Residues from the Detonation of Insensitive High Explosive Filled 155 mm Artillery Shell. Propellants Explo Pyrotec 2022. [DOI: 10.1002/prep.202100220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Federica Persico
- Centre for Defence Chemistry Cranfield University Defence Academy of the United Kingdom Shrivenham SN6 7LA UK
| | - Tracey Temple
- Centre for Defence Chemistry Cranfield University Defence Academy of the United Kingdom Shrivenham SN6 7LA UK
| | - Melissa Ladyman
- Centre for Defence Chemistry Cranfield University Defence Academy of the United Kingdom Shrivenham SN6 7LA UK
| | - William Gilroy‐Hirst
- Centre for Defence Chemistry Cranfield University Defence Academy of the United Kingdom Shrivenham SN6 7LA UK
| | - Encina Guiterrez‐Carazo
- Centre for Defence Chemistry Cranfield University Defence Academy of the United Kingdom Shrivenham SN6 7LA UK
| | - Frederic Coulon
- School of Water Energy and Environment Cranfield University Cranfield MK43 0AL UK
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6
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Chiancone F, Persico F, Fabiano M, Fedelini M, Giannella R, Meccariello C, Carrino M, Fedelini P. The increased risk of complicated ureteral stones during COVID-19 pandemic: a single-institution experience. EUR UROL SUPPL 2021. [PMCID: PMC8487693 DOI: 10.1016/s2666-1683(21)00864-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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7
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Regis F, Persico F, Saita A, Buffi N, Lazzeri M, Cieri M, Colombo P, Guazzoni G, Casale P, Lughezzani G. The use OF 29 MHz transrectal micro ultrasound for the local staging of prostate cancer: A single institutional analysis. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)36075-4] [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: 11/29/2022] Open
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8
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Avolio P, Persico F, Lazzeri M, Hurle R, Saita A, Frego N, Maffei D, Paciotti M, Diana P, Uleri A, Contieri R, Buffi N, Casale P, Guazzoni G, Lughezzani G. Clincally signicant prostate cancer diagnosis by micro-ultrasound guided prostate biopsies: A real-life single center experience. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)36076-6] [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: 10/23/2022] Open
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9
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Pecora F, Persico F, Argentiero A, Neglia C, Esposito S. The Role of Micronutrients in Support of the Immune Response against Viral Infections. Nutrients 2020; 12:nu12103198. [PMID: 33092041 PMCID: PMC7589163 DOI: 10.3390/nu12103198] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/10/2020] [Accepted: 10/11/2020] [Indexed: 12/12/2022] Open
Abstract
Viral infections are a leading cause of morbidity and mortality worldwide, and the importance of public health practices including handwashing and vaccinations in reducing their spread is well established. Furthermore, it is well known that proper nutrition can help support optimal immune function, reducing the impact of infections. Several vitamins and trace elements play an important role in supporting the cells of the immune system, thus increasing the resistance to infections. Other nutrients, such as omega-3 fatty acids, help sustain optimal function of the immune system. The main aim of this manuscript is to discuss of the potential role of micronutrients supplementation in supporting immunity, particularly against respiratory virus infections. Literature analysis showed that in vitro and observational studies, and clinical trials, highlight the important role of vitamins A, C, and D, omega-3 fatty acids, and zinc in modulating the immune response. Supplementation with vitamins, omega 3 fatty acids and zinc appears to be a safe and low-cost way to support optimal function of the immune system, with the potential to reduce the risk and consequences of infection, including viral respiratory infections. Supplementation should be in addition to a healthy diet and fall within recommended upper safety limits set by scientific expert bodies. Therefore, implementing an optimal nutrition, with micronutrients and omega-3 fatty acids supplementation, might be a cost-effective, underestimated strategy to help reduce the burden of infectious diseases worldwide, including coronavirus disease 2019 (COVID-19).
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10
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Avolio P, Buffi N, Maffei D, Regis F, Persico F, Lazzeri M, Guazzoni G, Casale P, Diana P, Paciotti M, Lughezzani G. The use of 29 MHZ transrectal micro ultrasound to stratify the presence of prostate cancer in patients with an equivocal mpMRI: A single institutional analysis. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)35355-6] [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: 11/25/2022] Open
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11
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Avolio P, Persico F, Lazzeri M, Hurle R, Saita A, Frego N, Maffei D, Paciotti M, Diana P, Uleri A, Contieri R, Buffi N, Casale P, Guazzoni G, Lughezzani G. Clinically signicant prostate cancer diagnosis by micro-ultrasound guided prostate biopsies: A real-life single center experience. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)35363-5] [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: 11/29/2022] Open
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12
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Persico F, Chiancone F, Giannella R, Pucci L, Jacobitti MF, Fedelini P, Carrino M. Preliminary data from a survey to assess the knowledge about sexuality of adolescents. “What do our boys know about sex?”. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)35323-4] [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: 10/23/2022] Open
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13
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Pecora F, Persico F, Gismondi P, Fornaroli F, Iuliano S, de'Angelis GL, Esposito S. Gut Microbiota in Celiac Disease: Is There Any Role for Probiotics? Front Immunol 2020; 11:957. [PMID: 32499787 PMCID: PMC7243837 DOI: 10.3389/fimmu.2020.00957] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 04/23/2020] [Indexed: 12/15/2022] Open
Abstract
Celiac disease (CD) is an immune-mediated disorder initiated by the ingestion of gluten in genetically predisposed individuals. Recent data shows that changes in the gut microbiome composition and function are linked with chronic inflammatory diseases; this might also be the case for CD. The main aim of this manuscript is to discuss our present knowledge of the relationships between gut microbiota alterations and CD and to understand if there is any role for probiotics in CD therapy. PubMed was used to search for all of the studies published from November 2009 to November 2019 using key words such as “Celiac Disease” and “Microbiota” (306 articles), “Celiac Disease” and “Gastrointestinal Microbiome” (139), and “Probiotics” and “Celiac Disease” (97 articles). The search was limited to articles published in English that provided evidence-based data. Literature analysis showed that the gut microbiota has a well-established role in gluten metabolism, in modulating the immune response and in regulating the permeability of the intestinal barrier. Promising studies suggest a possible role of probiotics in treating and/or preventing CD. Nevertheless, human trials on the subject are still scarce and lack homogeneity. A possible role was documented for probiotics in improving CD-related symptoms, modulating the peripheral immune response and altering the fecal microbiota, although the results were not consistent in all of the studies. No evidence was found that probiotic administration might prevent CD onset. Knowledge of the role of intestinal bacteria in the development of CD opens new possibilities for its treatment through probiotic administration, even though further studies are needed to better clarify whether probiotics can help treat or prevent the disease and to define which probiotics to use, at what dose and for how long.
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Affiliation(s)
- Francesco Pecora
- Department of Medicine and Surgery, Pediatric Clinic, Pietro Barilla Children's Hospital, University of Parma, Parma, Italy
| | - Federica Persico
- Department of Medicine and Surgery, Pediatric Clinic, Pietro Barilla Children's Hospital, University of Parma, Parma, Italy
| | - Pierpacifico Gismondi
- Department of Medicine and Surgery, Pediatric Clinic, Pietro Barilla Children's Hospital, University of Parma, Parma, Italy
| | - Fabiola Fornaroli
- Unit of Gastroenterology and Digestive Endoscopy, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Silvia Iuliano
- Unit of Gastroenterology and Digestive Endoscopy, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Gian Luigi de'Angelis
- Unit of Gastroenterology and Digestive Endoscopy, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Susanna Esposito
- Department of Medicine and Surgery, Pediatric Clinic, Pietro Barilla Children's Hospital, University of Parma, Parma, Italy
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14
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LeBlanc K, Jensen K, Krarup PM, Jorgensen L, Mynster T, Zappa B, Begolli L, Quazi S, Bhargava A, Luque JB, Suarez Gráu JM, Menchero JG, Moreno JG, Juraro JG, Ferreras ID, Nardi M, Millo P, Usai A, Lorusso R, Grivon M, Persico F, Allieta R, Christoffersen M, Brandt E, Helgstrand F, Westen M, Rosenberg J, Kehlet H, Strandfeit P, Bisgaard T, Vanini P, Kabbara S, Elia E, Piancastelli A, Guglielminetti D, Katsumoto F, Ahlqvist S, Björk D, Jänes A, Weisby-Enbom L, Israelsson L, Cengiz Y, Ndungu B, Kiragu P, Odende K, Jovanovic S, Pejcic V, Filipovic N, Trenkic M, Pavlovic A, Jovanovc B, Tatic M, Jovanovic A, Misra MC, Bansal VK, Subodh H, Krishna A, Bansal D, Ray S, Rajeshwari S, Björklund I, Burman A, Riccio PA, Vetrone G, Linguerri R, Liotta S, Antor M, Scottá M, Khalil H, Ichihara K, Takuo H, Ogawa M, Hidaka S, Hara K, Taki T, Ohashi S, Yoshida K, Galimov O, Shkundin A, Khanov V, Sarik J, Basta M, Bauder A, Kovach S, Fischer J, Tang L, Fei X, Xu M. Incisional Hernia: Daily Cases. Hernia 2015; 19 Suppl 1:S85-92. [PMID: 26518867 DOI: 10.1007/bf03355332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- K LeBlanc
- Our Lady of the Lake Physician Group, Baton Rouge, Louisiana, USA.,Department of Surgery, Louisiana State University School of Medicine, Baton Rouge, Louisiana, USA
| | - K Jensen
- Digestive Disease Center, Bispebjerg Hospital, Copenhagen, Denmark
| | - P-M Krarup
- Digestive Disease Center, Bispebjerg Hospital, Copenhagen, Denmark.,Danish Colorectal Cancer Group, Denmark
| | - L Jorgensen
- Digestive Disease Center, Bispebjerg Hospital, Copenhagen, Denmark
| | - T Mynster
- Digestive Disease Center, Bispebjerg Hospital, Copenhagen, Denmark.,Danish Colorectal Cancer Group, Denmark
| | - B Zappa
- King George Hospital, London, UK
| | | | - S Quazi
- King George Hospital, London, UK
| | | | | | | | | | | | | | | | - M Nardi
- Division of General Surgery, USL Valle D'Aosta - Umberto Parini Regional Hospital, Aosta, Italy
| | - P Millo
- Division of General Surgery, USL Valle D'Aosta - Umberto Parini Regional Hospital, Aosta, Italy
| | - A Usai
- Division of General Surgery, USL Valle D'Aosta - Umberto Parini Regional Hospital, Aosta, Italy
| | - R Lorusso
- Division of General Surgery, USL Valle D'Aosta - Umberto Parini Regional Hospital, Aosta, Italy
| | - M Grivon
- Division of General Surgery, USL Valle D'Aosta - Umberto Parini Regional Hospital, Aosta, Italy
| | - F Persico
- Division of General Surgery, USL Valle D'Aosta - Umberto Parini Regional Hospital, Aosta, Italy
| | - R Allieta
- Division of General Surgery, USL Valle D'Aosta - Umberto Parini Regional Hospital, Aosta, Italy
| | - M Christoffersen
- Gastro Unit, Surgical Division, Hvidovre Hospital, University of Copenhagen, Hvidovre, Denmark
| | - E Brandt
- Department of Gastrointestinal Surgery, Køge Hospital, University of Copenhagen, Køge, Denmark
| | - F Helgstrand
- Department of Gastrointestinal Surgery, Køge Hospital, University of Copenhagen, Køge, Denmark
| | - M Westen
- Gastro Unit, Surgical Division, Hvidovre Hospital, University of Copenhagen, Hvidovre, Denmark
| | - J Rosenberg
- Gastro Unit, Surgical Division, Herlev Hospital, University of Copenhagen, Herlev, Denmark
| | - H Kehlet
- Section of Surgical Pathophysiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - P Strandfeit
- Gastro Unit, Surgical Division, Hvidovre Hospital, University of Copenhagen, Hvidovre, Denmark
| | - T Bisgaard
- Gastro Unit, Surgical Division, Hvidovre Hospital, University of Copenhagen, Hvidovre, Denmark
| | - P Vanini
- Casa di Cura Privata Malatesta Novello, Cesena, Italy
| | - S Kabbara
- Casa di Cura Privata Malatesta Novello, Cesena, Italy
| | - E Elia
- Casa di Cura Privata Malatesta Novello, Cesena, Italy
| | | | | | - F Katsumoto
- Katsumoto Day Surgery Clinic, Kitakyusyu, Japan
| | - S Ahlqvist
- Department of Surgery, Sundsvall Hospital, Sundsvall, Sweden
| | - D Björk
- Department of Surgery, Sundsvall Hospital, Sundsvall, Sweden
| | - A Jänes
- Department of Surgery, Sundsvall Hospital, Sundsvall, Sweden
| | - L Weisby-Enbom
- Department of Radiology, Sundsvall Hospital, Sundsvall, Sweden
| | - L Israelsson
- Department of Surgery, Sundsvall Hospital, Sundsvall, Sweden.,Department of Surgery and Perioperative, Umeå University, Umeå, Sweden
| | - Y Cengiz
- Department of Surgery, Sundsvall Hospital, Sundsvall, Sweden.,Department of Surgery and Perioperative, Umeå University, Umeå, Sweden
| | - B Ndungu
- The University of Nairobi, Nairobi, Kenya
| | - P Kiragu
- Maralal County Hospital, Maralal, Kenya
| | - K Odende
- Kenyatta National Hospital, Nairobi, Kenya
| | - S Jovanovic
- Center for minimally invasive surgery, Nis, Serbia
| | - V Pejcic
- Center for minimally invasive surgery, Nis, Serbia
| | - N Filipovic
- Center for minimally invasive surgery, Nis, Serbia
| | - M Trenkic
- Center for minimally invasive surgery, Nis, Serbia
| | - A Pavlovic
- Center for minimally invasive surgery, Nis, Serbia
| | - B Jovanovc
- Center for minimally invasive surgery, Nis, Serbia
| | - M Tatic
- Center for minimally invasive surgery, Nis, Serbia
| | - A Jovanovic
- Center for minimally invasive surgery, Nis, Serbia
| | - M C Misra
- All India Institute of Medical Sciences, New Delhi, India
| | - V K Bansal
- All India Institute of Medical Sciences, New Delhi, India
| | - H Subodh
- All India Institute of Medical Sciences, New Delhi, India
| | - A Krishna
- All India Institute of Medical Sciences, New Delhi, India
| | - D Bansal
- All India Institute of Medical Sciences, New Delhi, India
| | - S Ray
- All India Institute of Medical Sciences, New Delhi, India
| | - S Rajeshwari
- All India Institute of Medical Sciences, New Delhi, India
| | | | - A Burman
- Department of Surgery, Sundsvall Hospital, Sundsvall, Sweden
| | | | | | | | | | - M Antor
- Department of Digestive Surgery, Rouen University Hospital, Rouen, France
| | | | | | | | - H Takuo
- Katsusika Medical Center, Tokyo, Japan
| | - M Ogawa
- Katsusika Medical Center, Tokyo, Japan
| | - S Hidaka
- Katsusika Medical Center, Tokyo, Japan
| | - K Hara
- Katsusika Medical Center, Tokyo, Japan
| | - T Taki
- Katsusika Medical Center, Tokyo, Japan
| | - S Ohashi
- Katsusika Medical Center, Tokyo, Japan
| | - K Yoshida
- Katsusika Medical Center, Tokyo, Japan
| | - O Galimov
- Bashkir State Medical University, Ufa, Russia
| | - A Shkundin
- Bashkir State Medical University, Ufa, Russia
| | - V Khanov
- Bashkir State Medical University, Ufa, Russia
| | - J Sarik
- Division of Plastic Surgery, Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - M Basta
- Division of Plastic Surgery, Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - A Bauder
- Division of Plastic Surgery, Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - S Kovach
- Division of Plastic Surgery, Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - J Fischer
- Division of Plastic Surgery, Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - L Tang
- Shaoxing people' hospital, Shaoxing, China
| | - X Fei
- Shaoxing people' hospital, Shaoxing, China
| | - M Xu
- Shaoxing people' hospital, Shaoxing, China
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Baldassarre E, Stranieri G, Cacciaguerra S, Centonze A, Mazzei A, Persico F, Rubino R. A 5-month-old baby with bilious vomit, bloody stool and an abdominal mass. MINERVA UROL NEFROL 2009; 61:67-68. [PMID: 19417727] [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: 05/27/2023]
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Suleiman SH, Salim OEH, Yousif DO, Eltahir MA, Elzaki K, Ibrahim SZ, Ahmed KM, Mudawi HM, Vini L, Silyvridou A, Kakana C, Janinis J, Diamantidou E, Navrozidou C, Boulogianni G, Hourmouzi D, Kopanakis K, Macheras A, Charalabopoulos A, Bistarakis D, Xylardistos P, Shizas D, Petropoulos K, Bakopoulos A, Liakakos T, Oikonomopoulos N, Martikos G, Patapis P, Misiakos E, Tsapralis D, Azas A, Charalobopoulos A, Liakakos L, Millo P, Allieta R, Nardi M, Brachet Contul R, Scozzari G, Alexandrou I, Lainakis N, Efstathiou E, Demetriadis D, Dolatzas T, Antypas S, Parini U, Persico F, Loffredo A, Lale Murix E, Fabozzi M, Roveroni M, Usai A, Da Broi J, Nardi MJ, Roustanis E, Benetatos N, Pappas-Gogos G, Tsimogiannis KE, Tsimoyiannis EC, Pramateftakis MG, Mantzoros I, Kanellos I, Demetriades H, Angelopoulos S, Despoudi K, Lazarides H, Tsachalis T, Sapidis N, Gouvas N, Tsiaoussis J, Pechlivanides G, Zervakis N, Xynos E. Abstracts Colorectal Games, Rethymnom, Crete, Greece, May 2008. Tech Coloproctol 2008. [DOI: 10.1007/s10151-008-0432-8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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De Palma GD, Persico F, Masone S, Belli A, Rega M, Persico M, Siciliano S, Salvatori F, Mastrobuoni G, Maione F, Coppola Bottazzi E, Girardi V, Dionisi M, Persico G. Natural orifices transluminal endoscopic surgery (NOTES): an overview of technical challenges and complications of transgastric procedures in anesthetized pigs. MINERVA CHIR 2008; 63:261-268. [PMID: 18607321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
AIM Natural orifice transluminal endoscopic surgery (NOTES) is a new reality that is progressively gaining popularity in the scientific community. The aim of this study was to report the authors' experience with various peroral transgastric procedures performed on the porcine model. The technical difficulties and challenges that arose were also analyzed. METHODS Ten anesthetized pigs, divided into an acute (3) and a survival group (7) underwent the following procedures using a double channel endoscope: peritoneoscopy (10), cholecystectomy (6),splenectomy (3), and gastrojejunostomy (3). RESULTS All the procedures were completed successfully. There was one complication related to the gastric wall incision. In the survival experiment group all pigs (4) submitted to biliare procedures made an uncomplicated recovery after a follow-up period of 2 weeks. Gastrojejunostomies (3) were instead graved by one technical failure (anastomosis disruption at post-mortem examination) and one case of mortality (premature euthanasia for evidences of sepsis). Complete gastric cleansing was impossible to achieve and overinflation was a common problem. The creation of gastro-enteric anastomoses was technically difficult with the current available devices. CONCLUSION Transgastric endoscopic surgery is technically feasible in a porcine model. A new instrumentation is needed and could strongly help to overcome the technical difficulties highlighted. More extensive animal studies are mandatory in order to evaluate the benefits and the limitations of this new technique.
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Affiliation(s)
- G D De Palma
- Department of Surgery and Advanced Technologies, Center for Technical Innovation in Surgery (ITC), University of Naples Federico II, School of Medicine, Naples, Italy.
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Abstract
We consider the three-body Casimir-Polder interaction between three atoms during their dynamical self-dressing. We show that the time-dependent three-body Casimir-Polder interaction energy displays nonlocal features related to quantum properties of the electromagnetic field and to the nonlocality of spatial field correlations. We discuss the measurability of this intriguing phenomenon and its relation with the usual concept of stationary three-body forces.
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Affiliation(s)
- L Rizzuto
- Dipartimento di Scienze Fisiche ed Astronomiche dell'Università degli Studi di Palermo and CNISM, Via Archirafi 36, I-90123 Palermo, Italy
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Amato B, Markabaoui AK, Piscitelli V, Mastrobuoni G, Persico F, Iuliano G, Masone S, Persico G. Carotid endarterectomy under local anesthesia in elderly: is it worthwhile? Acta Biomed 2005; 76 Suppl 1:64-8. [PMID: 16450515] [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: 05/06/2023]
Abstract
Carotid endarterectomy (CEA) has a positive effect on stroke free survival in patients with either symptomatic or asymptomatic severe carotid bifurcation stenosis. However, most trials have excluded elder patients. In addition, concerns have arisen regarding the benefits of CEA in the elderly population, especially in women. In this study, we performed an outcome analysis in patients undergoing CEA comparing those eighty and older to their younger counterparts. A total of 262 carotid operations were performed under local anaesthesia between 1998 and 2004; 76 (34%) were carotid reconstructions in 70 patients over 75 yr of age. Twenty patients (26%) presented with asymptomatic critical stenosis. Transient ischemic symptoms were the reason for presentation in 35 patients (46%). Progressive stroke was documented in two patients (3%) and a stroke with persisting neurological deficit was demonstrated in 19 cases (25%). Coronary artery disease was present in 47 patients (38%) and arterial hypertension in 55 (72%). Fifty-nine patients (84%) were classified as ASA group 3. Seventy-one thromboendarterectomies of the carotid bifurcation with direct closure were performed. Five patients had other types of reconstruction. Postoperative complications occurred in three patients. One had a transient neurological deficit and another a lethal stroke; the third patient died from myocardial infarction. The in-hospital mortality was 2.9%, which was not significantly higher than the results of the reconstructions in younger patients (1.5%). Surgery for carotid artery occlusive disease under local anaesthesia can be safely performed in selected patients of more than 75 yr of age.
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Affiliation(s)
- B Amato
- Department of General and Geriatric Surgery, University of Naples "Federico II", Naples, Italy
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De Palma GD, Puzziello A, Aprea G, Persico F, Rega M, Ciamarra P, Patrone F, Masone S, Di Marino M, Persico M, Mastantuono L, Noceroni L, Persico G. [Ultrasound-guided endoscopic drainage, without radiological examination, in patients with neoplastic biliary obstruction. Preliminary results]. MINERVA CHIR 2004; 59:347-50. [PMID: 15278029] [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: 04/30/2023]
Abstract
AIM Endoscopic stent insertion has become the preferred method for palliation of malignant biliary obstruction. Currently, endoscopic stent placement involves the use of contrast media and radiological equipment to achieve direct opacification of the biliary duct systems, and to determine the location and the extension of biliary obstruction. This report proposes a new combination of ultrasonography and biliary endoscopy, with endoscopic stent placement entirely performed under US-guidance. METHODS US-guided stent placement was carried out in 8 patients. A guide-wire and a guiding-catheter were endoscopically introduced and identified, by US, the common bile duct across the stricture. Hydromer-coated polyurethane angled stents (10F) were finally inserted over the guide-wire/guiding-catheter by a pusher tube system. RESULTS Successful stent insertion was achieved in all patients. There were no complications. Successful drainage, with substantial reduction in bilirubin level, was achieved in all patients (14.2+/-9.5 vs 4.2+/-2.9 mg/dl at 1 week). CONCLUSION Endoscopic stent placement performed under US-guidance, is safe and effective. Further studies in a larger series, including more proximal strictures are suggested.
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Affiliation(s)
- G D De Palma
- Dipartimento di Chirurgia Generale e Tecnologie Avanzate, Settore Funzionale di Diagnostica e Terapia Endoscopica, Università degli Studi Federico II, Facoltà di Medicina e Chirurgia, Napoli, Italy.
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De Palma GD, Puzziello A, Rega M, Mastantuono L, Persico F, Patrone F, Persico G. Ultrasonography-guided endoscopic stent placement for malignant biliary obstruction: a preliminary report of four cases. Endoscopy 2004; 36:334-6. [PMID: 15057684 DOI: 10.1055/s-2004-814307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
We present a new combination of transabdominal ultrasound (US) and biliary endoscopy, with endoscopic stent placement carried out under US guidance. Four patients (two men, two women; average age 66.2 years) underwent US-guided stent placement for palliation of ampullary carcinoma (n = 3) or pancreatic cancer (n = 1). A guide wire and a guiding catheter were endoscopically introduced and identified, by US in the common bile duct across the stricture. Hydromer-coated polyurethane angled stents (10 Fr) were finally inserted over the guide wire/guiding catheter by a pusher tube system. Successful drainage, with substantial reduction in bilirubin level, was achieved in all patients (14.2 +/- 9.5 vs. 4.2 +/- 2.9 mg/dl at 1 week). The present case series shows that endoscopic stent placement performed under US guidance is safe and effective. Further studies of larger series, including more proximal strictures, are warranted.
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Affiliation(s)
- G D De Palma
- Department of Surgery and Advanced Technologies, Section of Diagnostic and Therapeutic Endoscopy, University Federico II, School of Medicine, Naples, Italy.
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De Palma GD, Persico F, Masone S, Labianca O, Mastantuono L, Di Marino M, Persico G. [Endoscopic palliative treatment of the common bile duct at the hepatic hilum. Results in 583 patients treated in a single center over a 10-year period]. MINERVA CHIR 2003; 58:175-9. [PMID: 12738927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
BACKGROUND The outcomes of endoscopic biliary drainage for malignant stenoses at the hepatic hilum were retrospectively evaluated. METHODS From January 1990 to June 2001, 583 patients, 368 males, average age 69+/-18.5 years, were recruited. Endoscopic procedure consisted of insertion of 1 ore multiple stents, plastic or metallic, across the stricture, under mild sedation. RESULTS Successful stent insertion was achieved in 518/583 (88.8%) patients and successful drainage in 474 (81.3%) patients. Early complications were observed in 101 (17.3%) patients with related-mortality of 17 (2.9%) patients. Late complications occurred in 39.9% of patients. Survival was of 189 days, on average. CONCLUSIONS Endoscopic palliation should be the initial management of choice for malignant biliary stenoses at the hepatic hilum.
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Affiliation(s)
- G D De Palma
- Dipartimento di Chirurgia Generale, Oncologica ed Endoscopia Digestiva, Università degli Studi Federico II, Napoli, Italy.
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Persico G, Martignetti A, Imbriani A, Montella L, Aprea G, Coto M, Persico F, Palmieri G. Role of surgery in thymic disorders. Ann Med 1999; 31 Suppl 2:70-2. [PMID: 10574159] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
Abstract
Thymomas are relatively slow-growing neoplasms that should be considered malignant tumours. When treated in the early stages, however, they have an excellent prognosis for long-term survival. Surgery, radiation therapy and chemotherapy all play a role in the management of these neoplasms. Surgery is the treatment of choice in thymoma patients and has become an increasingly accepted procedure in the treatment of myasthenia gravis (MG) since 1936, when thymectomy was performed for this disease for the first time. Improvement in myasthenic symptoms is nearly always observed following thymectomy, but the rates of complete remission vary from 7% to 63%. We have studied the potential preoperative factors predicting the evolution of MG.
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Affiliation(s)
- G Persico
- Institute of General Surgery and Gastroenterology, and Department of Molecular and Clinical Endocrinology and Oncology, Faculty of Medicine and Surgery, University Federico II, Naples, Italy
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Compagno G, Vivirito S, Persico F. Cloud of virtual photons surrounding a two-level atom driven by an external field. Phys Rev A 1992; 46:7303-7306. [PMID: 9908071 DOI: 10.1103/physreva.46.7303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Compagno G, Passante R, Persico F. Bare bound states and the quantum theory of measurement. Phys Rev A 1991; 44:1956-1961. [PMID: 9906163 DOI: 10.1103/physreva.44.1956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Biswas AK, Compagno G, Palma GM, Passante R, Persico F. Erratum: Virtual photons and causality in the dynamics of a pair of two-level atoms. Phys Rev A 1991; 44:798. [PMID: 9905739 DOI: 10.1103/physreva.44.798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Biswas AK, Compagno G, Palma GM, Passante R, Persico F. Virtual photons and causality in the dynamics of a pair of two-level atoms. Phys Rev A 1990; 42:4291-4301. [PMID: 9904528 DOI: 10.1103/physreva.42.4291] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Compagno G, Passante R, Persico F. Theory of the detection of the field surrounding half-dressed sources. Phys Rev A Gen Phys 1988; 38:600-615. [PMID: 9900418 DOI: 10.1103/physreva.38.600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Persico F, Power EA. Time dependence of the field energy densities surrounding sources: Application to scalar mesons near point sources and to electromagnetic fields near molecules. Phys Rev A Gen Phys 1987; 36:475-481. [PMID: 9898888 DOI: 10.1103/physreva.36.475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Compagno G, Persico F. Erratum: Reply to "Comment on 'Theory of collective resonance fluorescence in strong driving field"'. Phys Rev A Gen Phys 1985; 32:3147. [PMID: 9920543 DOI: 10.1103/physreva.32.3147.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Passante R, Compagno G, Persico F. Cloud of virtual photons in the ground state of the hydrogen atom. Phys Rev A Gen Phys 1985; 31:2827-2841. [PMID: 9895837 DOI: 10.1103/physreva.31.2827] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Chasin M, Scott C, Shaw C, Persico F. A new assay for the measurement of mediator release from rat peritoneal mast cells. Int Arch Allergy Immunol 1979; 58:1-10. [PMID: 106016 DOI: 10.1159/000232167] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
In this report, we describe a new in vitro experimental system for monitoring the release, and inhibition of release, of [3H]-serotonin from rat peritoneal mast cells, which can be used as a novel screen for evaluation of compounds effective in immediate hypersensitivity reactions. This assay is an improvement on existing assays since the cells are not required to be exposed to hormones at any time during the procedure. In this assay, 1 microgram/ml of compound 48/80 consistently produced a 6- to 8-fold-increase in release of serotonin with a low background release of 4-5%. Disodium chromoglycate (DSCG), a standard inhibitor of histamine release, effectively inhibited compound-48/80-stimulated serotonin release with an average I50 of 2.1 X 10(-4) M. Several other potential antiasthmatic agents were far more potent than DSCG.
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