1
|
Mazza S, Drago A, Tanzi G, Soro S, Verga MC, Elvo B, Laurenza C, di Luna I, Grassia R. Long-term Major Papilla Metastasis From Lobular Breast Cancer Mimicking Ampullary Neoplasm: An Endoscopic Ultrasound Diagnosis. Am J Gastroenterol 2023; 118:772-773. [PMID: 36827588 DOI: 10.14309/ajg.0000000000002231] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 02/10/2023] [Indexed: 02/26/2023]
Affiliation(s)
- Stefano Mazza
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona, Italy
| | - Andrea Drago
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona, Italy
| | - Giulia Tanzi
- Department of Pathology, ASST Cremona, Cremona, Italy
| | - Sara Soro
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona, Italy
| | - Maria Chiara Verga
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona, Italy
| | - Biagio Elvo
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona, Italy
| | - Carmen Laurenza
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona, Italy
| | - Imma di Luna
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona, Italy
| | - Roberto Grassia
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona, Italy
| |
Collapse
|
2
|
Mazza S, Laurenza C, Elvo B, Tanzi G, Ungari M, Soro S, Verga MC, Drago A, Grassia R. Rectal linitis plastica as the first presentation of metastatic lobular breast cancer: an endoscopic ultrasound diagnosis. Clin J Gastroenterol 2022; 15:1072-1077. [DOI: 10.1007/s12328-022-01690-w] [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] [Received: 06/25/2022] [Accepted: 08/15/2022] [Indexed: 10/14/2022]
|
3
|
Mazza S, Elvo B, Conti CB, Drago A, Verga MC, Soro S, Silvestri AD, Cereatti F, Grassia R. Endoscopic ultrasound diagnostic gain over computed tomography and magnetic resonance cholangiopancreatography in defining etiology of idiopathic acute pancreatitis. World J Gastrointest Endosc 2022; 14:0. [PMID: 35978715 PMCID: PMC9265256 DOI: 10.4253/wjge.v14.i6.0000] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/23/2022] [Accepted: 05/22/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND About 10%-30% of acute pancreatitis remain idiopathic (IAP) even after clinical and imaging tests, including abdominal ultrasound (US), contrast-enhanced computed tomography (CECT) and magnetic resonance cholangiopancreatography (MRCP). This is a relevant issue, as up to 20% of patients with IAP have recurrent episodes and 26% of them develop chronic pancreatitis. Few data are available on the role of EUS in clarifying the etiology of IAP after failure of one or more cross-sectional techniques. AIM To evaluate the diagnostic gain after failure of one or more previous cross-sectional exams. METHODS We retrospectively collected data about consecutive patients with AP and at least one negative test between US, CECT and MRCP, who underwent linear EUS between January 2017 and December 2020. We investigated the EUS diagnostic yield and the EUS diagnostic gain over different combinations of these cross-sectional imaging techniques for the etiologic diagnosis of AP. Types and frequency of EUS diagnosis were also analyzed, and EUS diagnosis was compared with the clinical parameters. After EUS, patients were followed-up for a median of 31.5 mo to detect cases of pancreatitis recurrence. RESULTS We enrolled 81 patients (63% males, mean age 61 ± 18, 23% with previous cholecystectomy, 17% with recurrent pancreatitis). Overall EUS diagnostic yield for AP etiological diagnosis was 79% (20% lithiasis, 31% acute on chronic pancreatitis, 14% pancreatic solid or cystic lesions, 5% pancreas divisum, 5% autoimmune pancreatitis, 5% ductal abnormalities), while 21% remained idiopathic. US, CECT and MRCP, taken alone or in combination, led to AP etiological diagnosis in 16 (20%) patients; among the remaining 65 patients, 49 (75%) obtained a diagnosis at EUS, with an overall EUS diagnostic gain of 61%. Sixty-eight patients had negative US; among them, EUS allowed etiological diagnosis in 59 (87%). Sixty-three patients had a negative CECT; among them, 47 (74%) obtained diagnosis with EUS. Twenty-four had a negative MRCP; among them, 20 (83%) had EUS diagnosis. Twenty-one had negative CT + MRCP, of which 17 (81%) had EUS diagnosis, with a EUS diagnostic gain of 63%. Patients with biliary etiology and without previous cholecystectomy had higher median values of alanine aminotransferase (154 vs 25, P = 0.010), aspartate aminotransferase (95 vs 29, P = 0.018), direct bilirubin (1.2 vs 0.6, P = 0.015), gamma-glutamyl transpeptidase (180 vs 48, P = 0.006) and alkaline phosphatase (150 vs 72, P = 0.015) Chronic pancreatitis diagnosis was more frequent in patients with recurrent pancreatitis at baseline (82% vs 21%, P < 0.001). During the follow-up, AP recurred in 3 patients, one of which remained idiopathic. CONCLUSION EUS is a good test to define AP etiology. It showed a 63% diagnostic gain over CECT + MRCP. In suitable patients, EUS should always be performed in cases of IAP. Further prospective studies are needed.
Collapse
Affiliation(s)
- Stefano Mazza
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy.
| | - Biagio Elvo
- Gastroenterology and Endoscopy Unit, Federico II University, Napoli 80131, Italy
| | | | - Andrea Drago
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Maria Chiara Verga
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Sara Soro
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Annalisa De Silvestri
- Biometry and Clinical Epidemiology, Scientific Direction, IRCCS San Matteo Hospital Foundation, Pavia 27100, Italy
| | - Fabrizio Cereatti
- Department of Gastroenterology and Digestive Endoscopy, Castelli Hospital, Ariccia (Rm) 00040, Italy
| | - Roberto Grassia
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| |
Collapse
|
4
|
Mazza S, Elvo B, Conti CB, Drago A, Verga MC, Soro S, De Silvestri A, Cereatti F, Grassia R. Endoscopic ultrasound diagnostic gain over computed tomography and magnetic resonance cholang iopancreatography in defining etiology of idiopathic acute pancreatitis. World J Gastrointest Endosc 2022; 14:376-386. [DOI: 10.4253/wjge.v14.i6.376] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/23/2022] [Accepted: 05/23/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND About 10%-30% of acute pancreatitis remain idiopathic (IAP) even after clinical and imaging tests, including abdominal ultrasound (US), contrast-enhanced computed tomography (CECT) and magnetic resonance cholangiopancreatography (MRCP). This is a relevant issue, as up to 20% of patients with IAP have recurrent episodes and 26% of them develop chronic pancreatitis. Few data are available on the role of EUS in clarifying the etiology of IAP after failure of one or more cross-sectional techniques.
AIM To evaluate the diagnostic gain after failure of one or more previous cross-sectional exams.
METHODS We retrospectively collected data about consecutive patients with AP and at least one negative test between US, CECT and MRCP, who underwent linear EUS between January 2017 and December 2020. We investigated the EUS diagnostic yield and the EUS diagnostic gain over different combinations of these cross-sectional imaging techniques for the etiologic diagnosis of AP. Types and frequency of EUS diagnosis were also analyzed, and EUS diagnosis was compared with the clinical parameters. After EUS, patients were followed-up for a median of 31.5 mo to detect cases of pancreatitis recurrence.
RESULTS We enrolled 81 patients (63% males, mean age 61 ± 18, 23% with previous cholecystectomy, 17% with recurrent pancreatitis). Overall EUS diagnostic yield for AP etiological diagnosis was 79% (20% lithiasis, 31% acute on chronic pancreatitis, 14% pancreatic solid or cystic lesions, 5% pancreas divisum, 5% autoimmune pancreatitis, 5% ductal abnormalities), while 21% remained idiopathic. US, CECT and MRCP, taken alone or in combination, led to AP etiological diagnosis in 16 (20%) patients; among the remaining 65 patients, 49 (75%) obtained a diagnosis at EUS, with an overall EUS diagnostic gain of 61%. Sixty-eight patients had negative US; among them, EUS allowed etiological diagnosis in 59 (87%). Sixty-three patients had a negative CECT; among them, 47 (74%) obtained diagnosis with EUS. Twenty-four had a negative MRCP; among them, 20 (83%) had EUS diagnosis. Twenty-one had negative CT + MRCP, of which 17 (81%) had EUS diagnosis, with a EUS diagnostic gain of 63%. Patients with biliary etiology and without previous cholecystectomy had higher median values of alanine aminotransferase (154 vs 25, P = 0.010), aspartate aminotransferase (95 vs 29, P = 0.018), direct bilirubin (1.2 vs 0.6, P = 0.015), gamma-glutamyl transpeptidase (180 vs 48, P = 0.006) and alkaline phosphatase (150 vs 72, P = 0.015) Chronic pancreatitis diagnosis was more frequent in patients with recurrent pancreatitis at baseline (82% vs 21%, P < 0.001). During the follow-up, AP recurred in 3 patients, one of which remained idiopathic.
CONCLUSION EUS is a good test to define AP etiology. It showed a 63% diagnostic gain over CECT + MRCP. In suitable patients, EUS should always be performed in cases of IAP. Further prospective studies are needed.
Collapse
Affiliation(s)
- Stefano Mazza
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Biagio Elvo
- Gastroenterology and Endoscopy Unit, Federico II University, Napoli 80131, Italy
| | | | - Andrea Drago
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Maria Chiara Verga
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Sara Soro
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Annalisa De Silvestri
- Biometry and Clinical Epidemiology, Scientific Direction, IRCCS San Matteo Hospital Foundation, Pavia 27100, Italy
| | - Fabrizio Cereatti
- Department of Gastroenterology and Digestive Endoscopy, Castelli Hospital, Ariccia (Rm) 00040, Italy
| | - Roberto Grassia
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| |
Collapse
|
5
|
Grassia R, Mazza S, Drago A, Verga MC, Soro S, Elvo B, Baiocchi GL. A pancreatic stent to prevent post-ERCP acute pancreatitis: Is it always "true" prophylaxis? Gastrointest Endosc 2022; 95:1271-1272. [PMID: 35240117 DOI: 10.1016/j.gie.2022.02.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 02/24/2022] [Indexed: 02/08/2023]
Affiliation(s)
- Roberto Grassia
- Gastroenterology and Digestive Endoscopy Unit, ASST di Cremona, Cremona, Italy
| | - Stefano Mazza
- Gastroenterology and Digestive Endoscopy Unit, ASST di Cremona, Cremona, Italy
| | - Andrea Drago
- Gastroenterology and Digestive Endoscopy Unit, ASST di Cremona, Cremona, Italy
| | - Maria Chiara Verga
- Gastroenterology and Digestive Endoscopy Unit, ASST di Cremona, Cremona, Italy
| | - Sara Soro
- Gastroenterology and Digestive Endoscopy Unit, ASST di Cremona, Cremona, Italy
| | - Biagio Elvo
- Gastroenterology and Digestive Endoscopy Unit, ASST di Cremona, Cremona, Italy
| | | |
Collapse
|
6
|
Conti CB, Mainardi E, Soro S, Testa S, De Silvestri A, Drago A, Cereatti F, Grassia R. SARS-CoV-2 in inflammatory bowel disease population: Antibodies, disease and correlation with therapy. World J Gastrointest Endosc 2022; 14:154-163. [DOI: 10.4253/wjge.v14.i3.154] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Guidelines recommend to cease inflammatory bowel disease (IBD) biologic therapy during coronavirus disease 2019 (COVID-19).
AIM To investigate severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibody positivity in an IBD cohort, COVID-19 disease severity and to evaluate the correlation with clinical/therapeutic variables.
METHODS Prospective observational cohort study. IBD patients were tested for SARS-CoV-2 IgG. Data on COVID-19 disease, demographics/therapeutics and clinical features of the IBD population were collected. IgG ≥ 7 was set for SARS-CoV-2 antibody positivity. Throat swab was performed in cases of IgG positivity. Correlations between antibody positivity or COVID-19 symptoms and therapeutic/clinical data were assessed.
RESULTS In total, 103 IBD patients were enrolled. Among them, 18.4% had IgG ≥ 7. Multivariate analysis of antibody positivity correlated only with IBD treatment. For IgG ≥ 7, the odds ratio was 1.44 and 0.16 for azathioprine and mesalazine, respectively, vs biologic drugs (P = 0.0157 between them). COVID-19 related symptoms were reported in 63% of patients with IgG positivity. All but one patient with COVID-19 symptoms did not require ceasing IBD treatment or hospitalization. IBD treatment and body mass index correlated with COVID-19 disease development with symptoms.
CONCLUSION The IBD population does not have a higher risk of severe COVID-19. The relative risk of having SARS-CoV-2 antibodies and symptoms was higher for patients taking azathioprine, then biologic therapy and lastly mesalazine. None of the patients under biologic therapy developed severe COVID-19.
Collapse
Affiliation(s)
- Clara Benedetta Conti
- Department of Gastroenterology and Digestive Endoscopy, ASST Cremona, Cremona 26100, Italy
| | - Elsa Mainardi
- Department of Laboratory Medicine, Haemostasis and Thrombosis Center, ASST Cremona, Cremona 26100, Italy
| | - Sara Soro
- Department of Gastroenterology and Digestive Endoscopy, ASST Cremona, Cremona 26100, Italy
| | - Sophie Testa
- Department of Laboratory Medicine, Haemostasis and Thrombosis Center, ASST Cremona, Cremona 26100, Italy
| | - Annalisa De Silvestri
- Department of Clinic Epidemiology and Biometric, Scientific Direction, Fondazione IRCCS Policlinico San Matteo, Pavia 27100, Italy
| | - Andrea Drago
- Department of Gastroenterology and Digestive Endoscopy, ASST Cremona, Cremona 26100, Italy
| | - Fabrizio Cereatti
- Department of Gastroenterology and Digestive Endoscopy, ASST Cremona, Cremona 26100, Italy
| | - Roberto Grassia
- Department of Gastroenterology and Digestive Endoscopy, ASST Cremona, Cremona 26100, Italy
| |
Collapse
|
7
|
Conti CB, Mainardi E, Soro S, Testa S, De Silvestri A, Drago A, Cereatti F, Grassia R. SARS-CoV-2 in inflammatory bowel disease population: Antibodies, disease and correlation with therapy. World J Gastrointest Endosc 2022; 14:153-162. [PMID: 35432745 PMCID: PMC8984534 DOI: 10.4253/wjge.v14.i3.153] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 12/14/2021] [Accepted: 02/16/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Guidelines recommend to cease inflammatory bowel disease (IBD) biologic therapy during coronavirus disease 2019 (COVID-19).
AIM To investigate severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibody positivity in an IBD cohort, COVID-19 disease severity and to evaluate the correlation with clinical/therapeutic variables.
METHODS Prospective observational cohort study. IBD patients were tested for SARS-CoV-2 IgG. Data on COVID-19 disease, demographics/therapeutics and clinical features of the IBD population were collected. IgG ≥ 7 was set for SARS-CoV-2 antibody positivity. Throat swab was performed in cases of IgG positivity. Correlations between antibody positivity or COVID-19 symptoms and therapeutic/clinical data were assessed.
RESULTS In total, 103 IBD patients were enrolled. Among them, 18.4% had IgG ≥ 7. Multivariate analysis of antibody positivity correlated only with IBD treatment. For IgG ≥ 7, the odds ratio was 1.44 and 0.16 for azathioprine and mesalazine, respectively, vs biologic drugs (P = 0.0157 between them). COVID-19 related symptoms were reported in 63% of patients with IgG positivity. All but one patient with COVID-19 symptoms did not require ceasing IBD treatment or hospitalization. IBD treatment and body mass index correlated with COVID-19 disease development with symptoms.
CONCLUSION The IBD population does not have a higher risk of severe COVID-19. The relative risk of having SARS-CoV-2 antibodies and symptoms was higher for patients taking azathioprine, then biologic therapy and lastly mesalazine. None of the patients under biologic therapy developed severe COVID-19.
Collapse
Affiliation(s)
- Clara Benedetta Conti
- Department of Gastroenterology and Digestive Endoscopy, ASST Cremona, Cremona 26100, Italy
| | - Elsa Mainardi
- Department of Laboratory Medicine, Haemostasis and Thrombosis Center, ASST Cremona, Cremona 26100, Italy
| | - Sara Soro
- Department of Gastroenterology and Digestive Endoscopy, ASST Cremona, Cremona 26100, Italy
| | - Sophie Testa
- Department of Laboratory Medicine, Haemostasis and Thrombosis Center, ASST Cremona, Cremona 26100, Italy
| | - Annalisa De Silvestri
- Department of Clinic Epidemiology and Biometric, Scientific Direction, Fondazione IRCCS Policlinico San Matteo, Pavia 27100, Italy
| | - Andrea Drago
- Department of Gastroenterology and Digestive Endoscopy, ASST Cremona, Cremona 26100, Italy
| | - Fabrizio Cereatti
- Department of Gastroenterology and Digestive Endoscopy, ASST Cremona, Cremona 26100, Italy
| | - Roberto Grassia
- Department of Gastroenterology and Digestive Endoscopy, ASST Cremona, Cremona 26100, Italy
| |
Collapse
|
8
|
Verga MC, Mazza S, Azzolini F, Cereatti F, Conti CB, Drago A, Soro S, Elvo B, Grassia R. Gastric per-oral endoscopic myotomy: Indications, technique, results and comparison with surgical approach. World J Gastrointest Surg 2022; 14:12-23. [PMID: 35126859 PMCID: PMC8790331 DOI: 10.4240/wjgs.v14.i1.12] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 07/20/2021] [Accepted: 12/23/2021] [Indexed: 02/06/2023] Open
Abstract
Gastroparesis is a chronic disease of the stomach that causes a delayed gastric emptying, without the presence of a stenosis. For 30 years the authors identified pylorospasm as one of the most important pathophysiological mechanisms determining gastroparesis. Studies with EndoFLIP, a device that assesses pyloric distensibility, increased the knowledge about pylorospasm. Based on this data, several pyloric-targeted therapies were developed to treat refractory gastroparesis: Surgical pyloroplasty and endoscopic approach, such as pyloric injection of botulinum and pyloric stenting. Notwithstanding, the success of most of these techniques is still not complete. In 2013, the first human gastric per-oral endoscopic myotomy (GPOEM) was performed. It was inspired by the POEM technique, with a similar dissection method, that allows pyloromyotomy. Therapeutical results of GPOEM are similar to surgical approach in term of clinical success, adverse events and post-surgical pain. In the last 8 years GPOEM has gained the attention of the scientific community, as a minimally invasive technique with high rate of clinical success, quickly prevailing as a promising therapy for gastroparesis. Not surprisingly, in referral centers, its technical success rate is 100%. One of the main goals of recent studies is to identify those patients that will respond better to the therapies targeted on pylorus and to choose the better approach for each patient.
Collapse
Affiliation(s)
- Maria Chiara Verga
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Stefano Mazza
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Francesco Azzolini
- Gastroenterology and Digestive Endoscopy Unit, Ospedale San Raffaele IRCCS, Milano 20132, Italy
| | - Fabrizio Cereatti
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | | | - Andrea Drago
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Sara Soro
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Biagio Elvo
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Roberto Grassia
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| |
Collapse
|
9
|
Mazza S, Soro S, Verga MC, Elvo B, Ferretti F, Cereatti F, Drago A, Grassia R. Liver-side of inflammatory bowel diseases: Hepatobiliary and drug-induced disorders. World J Hepatol 2021; 13:1828-1849. [PMID: 35069993 PMCID: PMC8727201 DOI: 10.4254/wjh.v13.i12.1828] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 07/16/2021] [Accepted: 11/15/2021] [Indexed: 02/06/2023] Open
Abstract
Hepatobiliary disorders are among the most common extraintestinal manifestations in inflammatory bowel diseases (IBD), both in Crohn’s disease and ulcerative colitis (UC), and therefore represent a diagnostic challenge. Immune-mediated conditions include primary sclerosing cholangitis (PSC) as the main form, variant forms of PSC (namely small-duct PSC, PSC-autoimmune hepatitis overlap syndrome and IgG4-related sclerosing cholangitis) and granulomatous hepatitis. PSC is by far the most common, presenting in up to 8% of IBD patients, more frequently in UC. Several genetic foci have been identified, but environmental factors are preponderant on disease pathogenesis. The course of the two diseases is typically independent. PSC diagnosis is based mostly on typical radiological findings and exclusion of secondary cholangiopathies. Risk of cholangiocarcinoma is significantly increased in PSC, as well as the risk of colorectal cancer in patients with PSC and IBD-related colitis. No disease-modifying drugs are approved to date. Thus, PSC management is directed against symptoms and complications and includes medical therapies for pruritus, endoscopic treatment of biliary stenosis and liver transplant for end-stage liver disease. Other non-immune-mediated hepatobiliary disorders are gallstone disease, whose incidence is higher in IBD and reported in up to one third of IBD patients, non-alcoholic fatty liver disease, pyogenic liver abscess and portal vein thrombosis. Drug-induced liver injury (DILI) is an important issue in IBD, since most IBD therapies may cause liver toxicity; however, the incidence of serious adverse events is low. Thiopurines and methotrexate are the most associated with DILI, while the risk related to anti-tumor necrosis factor-α and anti-integrins is low. Data on hepatotoxicity of newer drugs approved for IBD, like anti-interleukin 12/23 and tofacitinib, are still scarce, but the evidence from other rheumatic diseases is reassuring. Hepatitis B reactivation during immunosuppressive therapy is a major concern in IBD, and adequate screening and vaccination is warranted. On the other hand, hepatitis C reactivation does not seem to be a real risk, and hepatitis C antiviral treatment does not influence IBD natural history. The approach to an IBD patient with abnormal liver function tests is complex due to the wide range of differential diagnosis, but it is of paramount importance to make a quick and accurate diagnosis, as it may influence the therapeutic management.
Collapse
Affiliation(s)
- Stefano Mazza
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Sara Soro
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Maria Chiara Verga
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Biagio Elvo
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Francesca Ferretti
- Gastroenterology Unit, ASST Fatebenefratelli-Sacco, Department of Biomedical and Clinical Sciences (DIBIC), Università degli Studi di Milano, Milan 20157, Italy
| | - Fabrizio Cereatti
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Andrea Drago
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| | - Roberto Grassia
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona 26100, Italy
| |
Collapse
|
10
|
Affiliation(s)
- Roberto Grassia
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona, Italy,Address correspondience to: Roberto Grassia, MD, Viale Concordia,1, 26100 Cremona, Italy ()
| | - Sara Soro
- Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Cremona, Italy
| | | |
Collapse
|
11
|
Dore MP, Soro S, Niolu C, Longo NP, Bibbò S, Manca A, Pes GM. Clinical features and natural history of idiopathic peptic ulcers: a retrospective case-control study. Scand J Gastroenterol 2019; 54:1315-1321. [PMID: 31630582 DOI: 10.1080/00365521.2019.1679247] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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] [Indexed: 02/08/2023]
Abstract
Objectives: Peptic ulcer disease (PUD) is still common worldwide and is characterized by high mortality and morbidity. Following the decline of Helicobacter pylori infection, the detection of idiopathic PUD (IPUD) has become more frequent, making diagnosis and treatment more difficult. In this study, the clinical features and natural history of IPUD were analyzed.Methods: This was a retrospective case‒control study conducted in a tertiary care setting (University of Sassari, Italy). Records of 9,212 patients undergoing upper endoscopy from 2002 to 2018 were analyzed. Following the exclusion of H. pylori, NSAIDs, and unusual PUD causes, the remaining were labelled as IPUD. Cases (IPUD) and controls (PUD negative) were compared, adjusting for several covariates through multivariate logistic regression models.Results: Among 380 PUD, 95 were considered IPUD. The proportion rose over the study period in contrast to the decline of H. pylori-PUD. Factors significantly associated with IPUD, after adjusting for all covariates, were age (OR, 3.520; 95% CI, 1.634 - 7.585), male sex (OR, 3.126; 95% CI, 1.888 - 5.176), hospitalization (OR, 2.968; 95% CI, 1.926 - 4.575), and number of medications (OR, 2.808; 95% CI, 1.178 - 6.735). A clinical history positive for PUD was the major risk associated with IPUD (OR, 3.729; 95% CI, 2.050 - 6.785). Patients with IPUD were treated with the highest proton pump inhibitor (PPI) dose for 40-60 days. Follow up endoscopy showed a cure rate of 97.6%.Conclusion: The relative proportion of IPUD is increasing in our population in contrast to the drop of H. pylori-PUD. Treatment with high-dose PPI, and for a long duration, heals IPUD and protects from recurrence.
Collapse
Affiliation(s)
- Maria Pina Dore
- Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, University of Sassari, Sassari, Italy.,Baylor College of Medicine, Houston, TX, USA
| | - Sara Soro
- Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, University of Sassari, Sassari, Italy
| | - Caterina Niolu
- Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, University of Sassari, Sassari, Italy
| | - Nunzio Pio Longo
- Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, University of Sassari, Sassari, Italy
| | - Stefano Bibbò
- Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, University of Sassari, Sassari, Italy
| | - Alessandra Manca
- Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, University of Sassari, Sassari, Italy
| | - Giovanni Mario Pes
- Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, University of Sassari, Sassari, Italy
| |
Collapse
|
12
|
Pes GM, Errigo A, Soro S, Longo NP, Dore MP. Glucose-6-phosphate dehydrogenase deficiency reduces susceptibility to cancer of endodermal origin. Acta Oncol 2019; 58:1205-1211. [PMID: 31109224 DOI: 10.1080/0284186x.2019.1616815] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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
Background: Glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most common inherited enzyme defect worldwide. There is a growing scientific evidence for a protective role of G6PD deficiency against carcinogenesis. In this retrospective analysis, we tested the hypothesis that G6PD deficiency may reduce the risk of developing cancer in a tissue-specific manner. Material and methods: The study was conducted using data from 11,708 subjects undergoing gastrointestinal endoscopic procedures between 2002 and 2018 and tested for G6PD status in a teaching hospital of Northern Sardinia, Italy. Results: A 40% reduction of risk for cancer of endodermal origin was observed among G6PD-deficient patients compared with subjects with normal enzyme activity (relative risk (RR) 0.61, 95% confidence interval (CI) 0.47-0.80) in both genders, confirmed by multivariable generalized linear regression after adjusting for age, sex, smoking habits, body mass index, diabetes and socio-economic status. The 'protective' effect of G6PD deficiency was larger for gastric cancer (RR 0.41, 95% CI 0.18-0.99), hepatocellular carcinoma (RR 0.48, 95% CI 0.26-0.92) and colorectal cancer (RR 0.72, 95% CI 0.53-0.98), while a non-significant risk was observed for breast, prostate, lung, hematopoietic and metastases (primary site unknown). Conclusions: Our results suggest a reduced susceptibility to develop cancers, mostly of endodermal origin (stomach, colon and liver), but not of ectodermal/mesodermal origin, in carriers of G6PD deficiency. The effects of G6PD deficiency on carcinogenesis need further studies to better understand how cancer cells originating from different germ layers use pentose phosphate pathway to proliferate.
Collapse
Affiliation(s)
- Giovanni Mario Pes
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
| | - Alessandra Errigo
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
| | - Sara Soro
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
| | - Nunzio Pio Longo
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
| | - Maria Pina Dore
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| |
Collapse
|
13
|
Abstract
Coeliac disease (CD) is an autoimmune disorder of the small bowel associated with increased risk of additional autoimmune diseases (ADs).To investigate the prevalence of ADs in a population of adult coeliac patients.This was a retrospective case-control study. Data from coeliac patients and controls referred to a tertiary center between 2013 and 2016 were collected. The frequency of ADs and the unadjusted and adjusted odds ratios (ORs) for age, gender, disease duration, and body mass index with their 95% confidence intervals (CIs) were evaluated.Two hundred fifty-five patients with CD (median age 37.1 years; 206 women) were matched with 250 controls. ADs were more frequent (35.3%) in coeliac patients than in controls (15.2%). Adjusted ORs for the presence of only 1, at least 1, and more than 1 AD were 3.13 (95% CI 1.81-5.42, P < .0001), 3.31 (95% CI 2.00-5.46, P < .0001), and 3.93 (95% CI 1.49-10.36, P = .006), respectively. Hashimoto thyroiditis was the most prevalent AD (24.3% vs. 10%) OR = 2.55 (95% CI 1.39-4.70, P < .0001), followed by psoriasis (4.3% vs. 1.6%), type 1 diabetes (2.7% vs. 0.4%), and Sjögren syndrome (2.4% vs. 0.4%).These findings suggest a need for a careful surveillance of autoimmune status, especially for Hashimoto thyroiditis in patients with celiac disease.
Collapse
Affiliation(s)
- Stefano Bibbò
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari
| | - Giovanni Mario Pes
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari
| | | | - Roberta Salis
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari
| | - Sara Soro
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari
| | | | - Maria Pina Dore
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari
| |
Collapse
|
14
|
Abstract
Gastric polyps are frequently reported in patients undergoing upper endoscopic procedures. In this retrospective study, the association between hyperplastic polyps and celiac disease in Northern Sardinia was estimated.Age, gender, body mass index, and medications taken in the 2 preceding months, including proton-pump inhibitors (PPIs), H2 receptor blockers (anti-H2), Helicobacter pylori status, endoscopic findings, and histology from charts of patients undergoing esophago-gastro-duodenoscopy were reviewed. Polyps were classified as hyperplastic, fundic gland, inflammatory, and adenomatous.3.7% (423/11379) patients had celiac disease. Prevalence of gastric polyps was 4.2% (3.8% among celiac vs 4.2% nonceliac patients). Inflammatory polyp was the most common histotype (55.8% and 56.2%) followed by fundic gland polyps (31.4% and 43.7%), hyperplastic (8.7% and 0%), and adenomas, in celiac and nonceliac patients, respectively. Fundic gland polyps were more common in PPI users (odds ratio: 4.06) than in nonusers (2.65, P = 0.001) among celiac and nonceliac patients. Age older than 50, female gender, esophago-gastro-duodenoscopy year, and PPI use were associated with the presence of polyps, whereas active H pylori infection was not.Gastric polyps were common in Sardinian patients undergoing esophago-gastro-duodenoscopy. However, the previously reported association between hyperplastic polyps and celiac disease was not confirmed in our study.
Collapse
Affiliation(s)
- Maria Pina Dore
- Dipartimento di Medicina Clinica e Sperimentale, Clinica Medica, Viale San Pietro, Sassari, University of Sassari, Italy
- Baylor College of Medicine, Michael E. DeBakey, Houston, TX
| | - Giovanni Mario Pes
- Dipartimento di Medicina Clinica e Sperimentale, Clinica Medica, Viale San Pietro, Sassari, University of Sassari, Italy
| | - Chiara Rocchi
- Dipartimento di Medicina Clinica e Sperimentale, Clinica Medica, Viale San Pietro, Sassari, University of Sassari, Italy
| | - Maria Francesca Loria
- Dipartimento di Medicina Clinica e Sperimentale, Clinica Medica, Viale San Pietro, Sassari, University of Sassari, Italy
| | - Sara Soro
- Dipartimento di Medicina Clinica e Sperimentale, Clinica Medica, Viale San Pietro, Sassari, University of Sassari, Italy
| | - Gabrio Bassotti
- Dipartimento di Medicina, Sezione di Gastroenterologia, Piazza Lucio Severi, San Sisto (Perugia), University of Perugia, Italy
| |
Collapse
|
15
|
Dore MP, Soro S, Rocchi C, Loria MF, Bibbò S, Pes GM. Inclusion of Lactobacillus Reuteri in the Treatment of Helicobacter pylori in Sardinian Patients: A Case Report Series. Medicine (Baltimore) 2016; 95:e3411. [PMID: 27082621 PMCID: PMC4839865 DOI: 10.1097/md.0000000000003411] [Citation(s) in RCA: 11] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Clinical studies have shown that bismuth-containing quadruple therapy given twice a day for 10 to 14 days is effective and safe in the treatment of Helicobacter pylori infection in Sardinia. However, bismuth is no longer available in Italy. To report the effectiveness and tolerability of pantoprazole 20 mg, tetracycline 500 mg, and metronidazole 500 mg given b.i.d. (with the midday and evening meals) for 10 days supplemented with Lactobacillus reuteri (DSM 17938) 10(8) cfu/tablet once a day for 20 days in patients treated in a routine daily practice setting. H pylori infection was defined as a positive gastric histopathology and/or 13C-Urea Breath Test (UBT) and/or stool antigen testing. Successful eradication was documented by 13C-UBT, and/or stool antigen assay at least 4 weeks post-therapy. Compliance and side effects were recorded after completing treatment. A total of 45 patients (10 men, 35 women; mean age 52.6 years) have completed the treatment regimen with the success rate of 93% (95% confidence interval = 85-99%). Compliance was excellent. Side effects were absent or generally mild.Proton pump inhibitor-tetracycline-metronidazole-L reuteri therapy provided high eradication rates with few side effects and therefore can safely replace bismuth in H pylori treatment. Further studies are needed that include susceptibility testing.
Collapse
Affiliation(s)
- Maria P Dore
- From the Department of Clinical and Experimental Medicine (MPD, SS, CR, MFL, SB, GMP), University of Sassari, Sassari Italy; and Baylor College of Medicine (MPD), Houston, TX
| | | | | | | | | | | |
Collapse
|
16
|
Dore MP, Pes GM, Marras G, Soro S, Rocchi C, Loria MF, Bassotti G. Risk factors associated with colonic diverticulosis among patients from a defined geographic area. Tech Coloproctol 2015; 20:177-83. [PMID: 26568053 DOI: 10.1007/s10151-015-1401-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [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: 08/27/2015] [Accepted: 10/26/2015] [Indexed: 12/14/2022]
Abstract
BACKGROUND Only a few data regarding colonic diverticulosis are available in Italy. We examined the frequency of colonic diverticulosis and its associations with risk factors in a homogeneous Northern Sardinian population undergoing colonoscopy for any reason in the last decades. METHODS This was a retrospective single-center study. Medical records of patients undergoing colonoscopy for any indication between 1995 and 2013 were reviewed. Demographic information including age, gender, geographic area (urban, rural), marital status, smoking habit, occupation, body mass index, and comorbidities were collected. Presence, number, and extension of diverticula were assessed by colonoscopy. The diagnosis of diverticulosis was defined by the presence of more than five diverticula. RESULTS A total of 4458 records were collected (39.8 % males). Analysis by birth cohorts showed a significant progressive age-related increase in the prevalence of diverticulosis. The average prevalence was 18.9 % without significant variation across the 19-year observation period. In 101 (12.1 %) subjects diverticula were single or few. Seventy-one percent of diverticula were located predominantly in the left side, 2 % in the right side, and 14.3 % were spread throughout the colon. There was a significant association with obesity but not with smoking habits, marital status, or urban versus rural environment. A strong association was observed between the presence of diverticulosis and cardiovascular and other gastrointestinal and lung disease (p < 0.0001). These associations were also confirmed by the logistic regression analysis. CONCLUSIONS In this endoscopic study, colonic diverticulosis in Northern Sardinia showed prevalence similar to other series in Western countries, and it was predominantly left sided and age related.
Collapse
Affiliation(s)
- M P Dore
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
- Baylor College of Medicine, Houston, TX, USA
| | - G M Pes
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - G Marras
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - S Soro
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - C Rocchi
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - M F Loria
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - G Bassotti
- Department of Medicine, University of Perugia, Perugia, Italy.
- Clinica di Gastroenterologia ed Epatologia, Ospedale Santa Maria della Misericordia, Piazzale Menghini, 1, 06156, San Sisto, Perugia, Italy.
| |
Collapse
|
17
|
Dore MP, Marras G, Rocchi C, Soro S, Loria MF, Bassotti G, Graham DY, Malaty HM, Pes GM. Changing prevalence of Helicobacter pylori infection and peptic ulcer among dyspeptic Sardinian patients. Intern Emerg Med 2015; 10:787-94. [PMID: 25739590 DOI: 10.1007/s11739-015-1218-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Accepted: 02/15/2015] [Indexed: 12/17/2022]
Abstract
Over the past 50 years, the prevalence of Helicobacter pylori infection has fallen as standards of living improved. The changes in the prevalence of infection and its manifestations (peptic ulcer disease and gastric mucosal lesions) were investigated in a large cohort of Sardinians undergoing upper endoscopy for dyspepsia. A retrospective observational study was conducted involving patients undergoing endoscopy for dyspepsia from 1995 to 2013. H. pylori status was assessed by histology plus the rapid urease test or 13C-UBT. Gastric mucosal lesions were evaluated histologically. Data including non-steroidal anti-inflammatory drugs (NSAIDs) use and the presence of peptic ulcers were collected. The prevalence of H. pylori was calculated for each quartile and for each birth cohort from 1910 to 2000. 11,202 records were retrieved for the analysis (62.9% women). The overall prevalence of H. pylori infection was 43.8% (M: 46.6% vs. F: 42.0%; P = 0.0001). A dramatic decrease in the prevalence of infection occurred over the 19-year observation period. The birth cohort effect was evident in each category (quartile) reflecting the continuous decline in H. pylori acquisition. Over time, the prevalence of peptic ulcers also declined, resulting in an increase in the proportion of H. pylori negative/NSAID positive and H. pylori negative/NSAID negative peptic ulcers. The prevalence of gastric mucosal changes also declined despite aging. The decline in H. pylori prevalence over time likely reflects the improvement in socioeconomic conditions in Sardinia such that H. pylori infection and its clinical outcomes including peptic ulcer are becoming less frequent even among dyspeptic patients.
Collapse
Affiliation(s)
- Maria Pina Dore
- Dipartimento di Medicina Clinica e Sperimentale, Clinica Medica, University of Sassari, Viale San Pietro, 8, 07100, Sassari, Italy.
- Michael E. DeBakey VA Medical Center, Baylor College of Medicine, Houston, TX, USA.
| | - Giuseppina Marras
- Dipartimento di Medicina Clinica e Sperimentale, Clinica Medica, University of Sassari, Viale San Pietro, 8, 07100, Sassari, Italy
| | - Chiara Rocchi
- Dipartimento di Medicina Clinica e Sperimentale, Clinica Medica, University of Sassari, Viale San Pietro, 8, 07100, Sassari, Italy
| | - Sara Soro
- Dipartimento di Medicina Clinica e Sperimentale, Clinica Medica, University of Sassari, Viale San Pietro, 8, 07100, Sassari, Italy
| | - Maria Francesca Loria
- Dipartimento di Medicina Clinica e Sperimentale, Clinica Medica, University of Sassari, Viale San Pietro, 8, 07100, Sassari, Italy
| | - Gabrio Bassotti
- Dipartimento di Medicina, University of Perugia, Perugia, Italy
| | - David Y Graham
- Michael E. DeBakey VA Medical Center, Baylor College of Medicine, Houston, TX, USA
| | - Hoda M Malaty
- Michael E. DeBakey VA Medical Center, Baylor College of Medicine, Houston, TX, USA
| | - Giovanni M Pes
- Dipartimento di Medicina Clinica e Sperimentale, Clinica Medica, University of Sassari, Viale San Pietro, 8, 07100, Sassari, Italy
| |
Collapse
|
18
|
Pruvost O, Boyer C, Grygiel P, Boyer K, Verniere C, Gagnevin L, Soro S, N'Guessan C, Kone D. First Report of Xanthomonas citri pv. mangiferaeindicae Causing Mango Bacterial Canker on Mangifera indica in Ivory Coast. Plant Dis 2014; 98:1740. [PMID: 30703897 DOI: 10.1094/pdis-07-14-0669-pdn] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Xanthomonas citri pv. mangiferaeindicae causing bacterial canker (or black spot) is a major mango (Mangifera indica L.) pathogen in tropical and subtropical areas (3). The bacterium infects a wide range of mango cultivars, and induces raised, angular, black leaf lesions, sometimes with a yellow chlorotic halo. Fruit symptoms first appear as small water-soaked spots on the lenticels turning into star-shaped, erumpent lesions, which exude an infectious gum, yielding tear-stain patterns. Severe infections cause severe defoliation and/or premature fruit drop. Twig cankers are potential sources of inoculum and weaken branch resistance to winds. Drastic yield losses have been reported at grove scale for susceptible cultivars (3). Mango leaves showing typical angular, black, raised leaf lesions were first observed and collected in April 2014 from trees cv. Kent in five localities of the Korhogo province of Ivory Coast (i.e., the major commercial mango-growing area in this country). Non-pigmented Xanthomonas-like colonies were isolated on KC semi-selective medium (4). Five strains (LL60-1, LL61-1, LL62-1, LL63-1, and LL64-1), one from each locality, were compared by multilocus sequence analysis (MLSA) to the type strain of X. citri and the pathotype strain of several X. citri pathovars, including pvs. anacardii and mangiferaeindicae. This assay targeted the atpD, dnaK, efp, and gyrB genes, as described previously (2). Nucleotide sequences were 100% identical to those of the pathotype strain of X. citri pv. mangiferaeindicae whatever the gene assayed, but differed from any other assayed X. citri pathovar. Leaves of mango cv. Maison Rouge from the youngest vegetative flush were infiltrated (10 inoculation sites/leaf for three replicate leaves on different plants/bacterial strain) as detailed previously (1) with the same five strains. Bacterial suspensions (~1 × 105 cfu/ml) were prepared in 10 mM Tris buffer (pH 7.2) from 16-h-old cultures on YPGA (7 g yeast, 7 g peptone, 7 g glucose, and 18 g agar/liter, pH 7.2). The negative control treatment consisted of three leaves infiltrated with sterile Tris buffer (10 sites/leaf). Plants were incubated in a growth chamber at 30 ± 1°C by day and 26 ± 1°C by night (12-h day/night cycle) at 80 ± 5% RH. All leaves inoculated with the strains from Ivory Coast showed typical symptoms of bacterial canker a week after inoculation. No lesions were recorded from the negative controls. The pathogen was recovered at high population densities (>1 × 106 cfu/lesion) from leaf lesions, typical of a compatible interaction (1) and isolated colonies were identified as the target by atpD sequencing (2). Koch's postulates have therefore been fully verified. This is the first report of the disease in Ivory Coast, a country which has been an internationally significant mango exporter (up to 15,000 tons per year) over the last two decades. A high disease incidence and severity were observed, outlining the need for implementing integrated pest management in mango groves and the production of disease-free nursery stock. This report further expands the distribution of the pathogen in West Africa after its first description from Ghana in 2011 (5) and subsequently in other neighboring countries. References: (1) N. Ah-You et al. Phytopathology 97:1568, 2007. (2) L. Bui Thi Ngoc et al. Int. J. Syst. Evol. Microbiol. 60:515, 2010. (3) L. Gagnevin and O. Pruvost. Plant Dis. 85:928, 2001. (4) O. Pruvost et al. J. Appl. Microbiol. 99:803, 2005. (5) O. Pruvost et al. Plant Dis. 95:774, 2011.
Collapse
Affiliation(s)
- O Pruvost
- CIRAD-Université de la Réunion, UMR PVBMT, Saint Pierre, La Réunion, F-97410 France
| | - C Boyer
- CIRAD-Université de la Réunion, UMR PVBMT, Saint Pierre, La Réunion, F-97410 France
| | - P Grygiel
- CIRAD-Université de la Réunion, UMR PVBMT, Saint Pierre, La Réunion, F-97410 France
| | - K Boyer
- CIRAD-Université de la Réunion, UMR PVBMT, Saint Pierre, La Réunion, F-97410 France
| | - C Verniere
- CIRAD-Université de la Réunion, UMR PVBMT, Saint Pierre, La Réunion, F-97410 France
| | - L Gagnevin
- CIRAD-Université de la Réunion, UMR PVBMT, Saint Pierre, La Réunion, F-97410 France
| | - S Soro
- Université Nangui Abrogoua, Abidjan, Ivory Coast
| | - C N'Guessan
- Université Péléforo Gon Coulibaly de Korhogo, UFR Sciences Biologiques, Korhogo, Ivory Coast
| | - D Kone
- Université de Cocody-Abidjan, UFR Biosciences, Abidjan, Ivory Coast
| |
Collapse
|
19
|
Dore MP, Villanacci V, Manca A, Soro S, Schiavo-Lena M, Sabatino G, Graham DY, Bassotti G. Cherry-tree colon: colonoscopic appearance suggesting drug-induced mucosal injury. Intern Emerg Med 2014; 9:405-9. [PMID: 23494541 DOI: 10.1007/s11739-013-0930-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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] [Received: 01/17/2013] [Accepted: 03/02/2013] [Indexed: 01/15/2023]
Abstract
Drug-induced damage to the gastrointestinal mucosa has been mainly focused on damage in the upper tract. However, increasing evidence suggests that commonly used drugs may also affect the mucosa of the lower gut, and particularly in the colon. The aim of this study was to report that fairly homogeneous colonoscopic findings, correlate with histological evidence of drug-induced mucosal injury. Charts of patients with the "cherry tree" colonoscopic aspect were reviewed to correlate the endoscopic and histological findings for a possible association with the use of drugs. Data from 29 patients (5 men, 24 women, age range 16-76 years) with the "cherry tree" colonoscopic findings were analyzed. Histology revealed an increase in eosinophils in the left colon in 23 patients, pseudomelanosis coli in 3, and microscopic colitis in 3. The findings were associated with proton pump inhibitors in 19 (65.5 %), non-steroidal anti-inflammatory drugs or statins (3 cases each), and other drugs [4 cases, including estroprogestinics (1), antidepressants (2), and thyroxin (1)]. The "cherry tree" colonoscopic appearance suggests drug-induced colonic damage. Awareness of this association may prevent unnecessary, expensive and time-consuming procedures.
Collapse
Affiliation(s)
- Maria Pina Dore
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | | | | | | | | | | | | | | |
Collapse
|
20
|
Koné D, Aké S, Abo K, Soro S, N'Guessan CA, Wipf-Scheibel C, Chandeysson C, Desbiez C, Lecoq H. First Report of Zucchini yellow mosaic virus in Cucurbits in Ivory Coast. Plant Dis 2010; 94:1378. [PMID: 30743639 DOI: 10.1094/pdis-06-10-0416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
During a field survey conducted in December 2008 and January 2009 in southern Ivory Coast, zucchini squash (Cucurbita pepo L.) and cucumber (Cucumis sativus L.) plants were observed showing severe symptoms of leaf mosaic and distortions, filiformism, and fruit deformations. Nine samples were collected from symptomatic plants in four locations (Adzopé, Songon, Ayamé, and Gagnoa) and dried over CaCl2. Double-antibody sandwich (DAS)-ELISA tests were performed directly on dried samples with antisera against nine cucurbit-infecting viruses: Zucchini yellow mosaic virus (ZYMV, Potyvirus); Papaya ringspot virus (PRSV, Potyvirus); Watermelon mosaic virus (WMV, Potyvirus); Moroccan watermelon mosaic virus (MWMV, Potyvirus); Cucumber vein yellowing virus (CVYV, Ipomovirus); Cucumber mosaic virus (CMV, Cucumovirus); Cucurbit aphid borne yellows virus (CABYV, Polerovirus); Squash mosaic virus (SqMV, Comovirus); and Cucumber green mottle mosaic virus (CGMMV, Tobamovirus). ZYMV was detected alone in four of six zucchini squash samples and in mixed infection with CMV and PRSV in two of three cucumber samples. A cucumber sample (CI09-09) collected at Songon and infected by ZYMV, CMV, and PRSV was inoculated to zucchini squash. ZYMV was separated from CMV and PRSV by inoculating zucchini squash plantlets with one Myzus persicae Sulzer per plant with 2-min acquisition and 2-h inoculation access periods. Plants infected by ZYMV only developed typical symptoms of severe mosaic, distortion, and filiformism on leaves. Total RNA was extracted from the original dried sample of CI09-09 using TRI-Reagent (Molecular Research Center Inc., Cincinnati, OH) (2). One-step reverse transcription (RT)-PCR was performed with our standard protocol and specific primers (2), yielding a 605-bp fragment corresponding to part of the polymerase (NIb) and coat protein (CP) coding regions. The nucleotide sequence of the NIb-CP fragment of Ivory Coast ZYMV isolate CI09-09 (GenBank No. HM450303) shared 98.5, 92.7, 80.5, and 75.7% identity with ZYMV isolates from France (isolate E9, HM641798), Florida (D13914), Singapore (AF014811), and Vietnam (DQ925449), respectively. Sequence comparison indicated that CI09-09 belongs to the phylogenetic cluster 1 of group A of ZYMV (2). ZYMV, first described in 1981, is now one of the most damaging viruses in cucurbit crops worldwide and is characterized by an important biological and molecular diversity (1,3). ZYMV has already been reported in several African countries, mostly in the northern and southern parts of the continent (1), but to our knowledge, this is the first report of ZYMV in Ivory Coast. Among African isolates, CI09-09 shared 97.5% identity with isolate Su06-22 from Sudan (HM641799) belonging to the phylogenetic cluster 1 of group A of ZYMV, 94 to 95% identity with isolates from neighboring Mali (HM005307-HM005312) belonging to cluster 2 of group A, and 79.6% identity with the divergent isolate R5A from Réunion Island (L29569) belonging to phylogenetic group B of ZYMV. The presence of ZYMV in four distant locations in southern Ivory Coast suggests that this virus constitutes a serious threat to cucurbit production in this country. References: (1) C. Desbiez and H. Lecoq. Plant Pathol. 46:809, 1997, (2) C. Desbiez et al. Virus Res. 85:5, 2002, (3) H. Lecoq et al. Virus Res. 141:190, 2009.
Collapse
Affiliation(s)
- D Koné
- Laboratoire de Physiologie Végétale, UFR Biosciences, Université de Cocody-Abidjan, 22 BP 582 Abidjan 22, Côte d'Ivoire
| | - S Aké
- Laboratoire de Physiologie Végétale, UFR Biosciences, Université de Cocody-Abidjan, 22 BP 582 Abidjan 22, Côte d'Ivoire
| | - K Abo
- ENSA, Départment Agriculture et Ressources Animales, INP-HB, BP 1313 Yamoussoukro, Côte-d'Ivoire
| | - S Soro
- ENSA, Départment Agriculture et Ressources Animales, INP-HB, BP 1313 Yamoussoukro, Côte-d'Ivoire
| | - C A N'Guessan
- ENSA, Départment Agriculture et Ressources Animales, INP-HB, BP 1313 Yamoussoukro, Côte-d'Ivoire
| | - C Wipf-Scheibel
- INRA, UR407, Station de Pathologie Végétale, Domaine Saint Maurice, BP 94, 84140 Montfavet cedex, France
| | - C Chandeysson
- INRA, UR407, Station de Pathologie Végétale, Domaine Saint Maurice, BP 94, 84140 Montfavet cedex, France
| | - C Desbiez
- INRA, UR407, Station de Pathologie Végétale, Domaine Saint Maurice, BP 94, 84140 Montfavet cedex, France
| | - H Lecoq
- INRA, UR407, Station de Pathologie Végétale, Domaine Saint Maurice, BP 94, 84140 Montfavet cedex, France
| |
Collapse
|
21
|
Koné D, Mohamed D, Soro S, Bolou Bi BA, Kouadio YJ, Ji P. First Report of Southern Blight of Okra (Abelmoschus esculentus) Caused by Sclerotium rolfsii in Côte d'Ivoire. Plant Dis 2010; 94:1379. [PMID: 30743629 DOI: 10.1094/pdis-06-10-0449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Southern blight caused by Sclerotium rolfsii Sacc. was observed on okra (Abelmoschus esculentus) cv. Clemson Spineless in January 2010 during a survey of vegetable fields in Rubbino, Côte d'Ivoire, which is one of the most important areas for vegetable production. Plants exhibited symptoms of a dark brown lesion on the stems near the soil line. Upper roots became light to dark brown, the lower leaves wilted, turned yellow, and a white mat of fungal mycelium developed on the stem lesion. Numerous, white, spherical sclerotia formed on the infected stem and on soil surfaces around the infected plants. Sclerotia (0.5 to 1.2 mm in diameter) later turned tan to dark brown and the entire plant wilted. Eleven fields, with a total of approximately 26 ha surveyed, were affected and disease incidence reached approximately 15% in the fields. Sclerotia were collected and the fungus cultured on acidified potato dextrose agar (PDA) plates. The fungus grew rapidly on PDA and the hyphae at the edge of the colonies were large straight cells with one or more clamp connections at each septum. Secondary and tertiary hyphae were slender and lacked clamp connections. Whitish sclerotia were observed on the mycelial mats 5 to 7 days after incubation, which later turned tan to brown when mature. The fungus was identified as S. rolfsii based on the characteristics of mycelia and sclerotia (1). Sclerotia produced on PDA were used to inoculate okra seedlings under greenhouse conditions at rates of 10, 20, and 30 sclerotia per plant. Sclerotia were placed just under the soil surface around the root of 4-week-old seedlings of okra cv. Clemson Spineless. Symptoms identical to those on field samples developed on all inoculated plants. S. rolfsii was reisolated from diseased plants and the identity was confirmed. S. rolfsii has previously been reported as causing disease in Côte d'Ivoire (2). To our knowledge, this is the first report of southern blight caused by S. rolfsii on okra in this country. Okra is an important vegetable crop in Côte d'Ivoire and therefore the occurrence of southern blight and susceptibility of okra cultivars to this disease needs to be taken into account in okra production. References: (1) Z. K. Punja and A. Damiani. Mycologia 88:694, 1996. (2) R. Resplandy et al. Ann. Epiphyt. 1:1, 1954.
Collapse
Affiliation(s)
- D Koné
- University of Cocody-Abidjan, UFR Biosciences, 22 BP 461 Abidjan 22, Côte d'Ivoire
| | - D Mohamed
- Université de Abobo-Adamé, UFR Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d'Ivoire
| | - S Soro
- Université de Abobo-Adamé, UFR Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d'Ivoire
| | - B A Bolou Bi
- Université de Abobo-Adamé, UFR Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d'Ivoire
| | - Y J Kouadio
- Université de Abobo-Adamé, UFR Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d'Ivoire
| | - P Ji
- Department of Plant Pathology, University of Georgia, Tifton 31794
| |
Collapse
|
22
|
Abstract
Celiac disease results from the interaction between gluten and immune, genetic, and environmental factors. Although the main clinical manifestations are derived from gastrointestinal system, it has been described some renal diseases, especially chronic glomerulonephritis. We describe a young female patient with celiac disease that it appears after delivery. Moreover, she develops simultaneously nephrotic proteinuria and microhematuria as a result of membranous nephropathy. The treatment with gluten-free diet and other conservative measures (ACEI and statin) is followed by clinical improvement and simultaneous decrease of tissue antitransglutaminase IgA-antibodies and complete remission of proteinuria. We review the relationship between celiac disease and membranous nephropathy and the role of diet in the management of both diseases.
Collapse
Affiliation(s)
- S Soro
- Sección de Reumatología, Hospital General de Ciudad Real, Ciudad Real
| | | | | |
Collapse
|
23
|
Panzavolta F, Soro S, D’Amato R, Palocci C, Cernia E, Russo M. Acetylenic polymers as new immobilization matrices for lipolytic enzymes. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.molcatb.2004.09.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
24
|
Abstract
Adenylosuccinate lyase is an enzyme of fumarase superfamily that participates in the purine biosynthetic pathway, catalysing the nonhydrolytic cleavage of succinyl groups from SAICA ribotide and adenylosuccinate. Enzyme defects are associated with a human inherited disease, which arises from single point mutations to the gene and results in mild to severe psychomotor retardation, epilepsy, muscle wasting, and autistic features. Adenylosuccinate lyase activity is lost to a different extent in the patients. Diminished levels of enzyme have been attributed to loss of catalytic activity, protein instability, or environmental factors. P100A/D422Y mutation represents a feasible model for studying the effect of cell milieu on the activity of the impaired enzyme. The defective enzyme is inhibited by micromolar concentrations of trans-4-hydroxy-2-nonenal (HNE), a major product of membrane peroxidation that has been found to accumulate in brain tissues of patients with neurodegenerative disorders. It is suggested that inactivation of defective adenylosuccinate lyase by HNE and other membrane peroxidation products may account, at least in part, for the impairment of neurological functions and recurrent worsening of the symptoms.
Collapse
Affiliation(s)
- C Crifò
- Department of Biochemical Sciences and Laboratory of Clinical Biochemistry, University of Rome La Sapienza, Rome, Italy
| | | | | | | |
Collapse
|
25
|
Cernia E, Delfini M, Di Cocco E, Palocci C, Soro S. Investigation of lipase-catalysed hydrolysis of naproxen methyl ester: use of NMR spectroscopy methods to study substrate-enzyme interaction. Bioorg Chem 2002; 30:276-84. [PMID: 12392706 DOI: 10.1016/s0045-2068(02)00014-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
(+/-)-2-(6-Methoxy-2-naphthyl)propionic acid methyl ester (methyl ester of Naproxen), the precursor of therapeutically important nonsteroidal anti-inflammatory drugs (NSAIDs) was enantioselectively hydrolysed using as biocatalyst Candida rugosa lipase. In research aimed at studying the structure-activity relationship (SAR), NMR spectroscopy methods were employed to identify which Naproxen molecular moiety was essential to the substrate-enzyme interaction. The experimental results, in agreement with previous computer modelling studies and reported kinetic data, gave new information on the enzyme-substrate complex formation in solution.
Collapse
Affiliation(s)
- E Cernia
- Department of Chemistry, University of Rome "La Sapienza," Piazzale Aldo Moro 5, 00185, Rome, Italy
| | | | | | | | | |
Collapse
|
26
|
Manetti F, Mileto D, Corelli F, Soro S, Palocci C, Cernia E, D'Acquarica I, Lotti M, Alberghina L, Botta M. Design and realization of a tailor-made enzyme to modify the molecular recognition of 2-arylpropionic esters by Candida rugosa lipase. Biochim Biophys Acta 2000; 1543:146-58. [PMID: 11087950 DOI: 10.1016/s0167-4838(00)00185-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Within a research project aimed at probing the substrate specificity and the enantioselectivity of Candida rugosa lipase (CRL), computer modeling studies of the interactions between CRL and methyl (+/-)-2-(3-benzoylphenyl)propionate (Ketoprofen methyl ester) have been carried out in order to identify which amino acids are essential to the enzyme/substrate interaction. Different binding models of the substrate enantiomers to the active site of CRL were investigated by applying a computational protocol based on molecular docking, conformational analysis, and energy minimization procedures. The structural models of the computer generated complexes between CRL and the substrates enabled us to propose that Phe344 and Phe345, in addition to the residues constituting the catalytic triad and the oxyanion hole, are the amino acids mainly involved in the enzyme-ligand interactions. To test the importance of these residues for the enzymatic activity, site-directed mutagenesis of the selected amino acids has been performed, and the mutated enzymes have been evaluated for their conversion and selectivity capabilities toward different substrates. The experimental results obtained in these biotransformation reactions indicate that Phe344 and especially Phe345 influence CRL activity, supporting the findings of our theoretical simulations.
Collapse
Affiliation(s)
- F Manetti
- Dipartimento Farmaco Chimico Tecnologico, Università degli Studi di Siena, Via Aldo Moro snc, I-53100 Siena, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
|
28
|
Botta M, Cernia E, Corelli F, Manetti F, Soro S. Probing the substrate specificity for lipases. II. Kinetic and modeling studies on the molecular recognition of 2-arylpropionic esters by Candida rugosa and Rhizomucor miehei lipases. Biochim Biophys Acta 1997; 1337:302-10. [PMID: 9048908 DOI: 10.1016/s0167-4838(96)00181-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Racemic arylpropionic esters 1-3, precursors of therapeutically important non-steroidal antiinflammatory drugs, were subjected to hydrolyses in the presence of either Candida rugosa or Rhizomucor miehei crude lipases. The hydrolyses of 1 and 2 proved to be highly enantioselective, whereas 3 was not transformed at all. Both the substrate specificity and the enantioselectivity of these lipases were explained through a molecular modeling study involving docking experiments between 1-3 and the amino acids forming the enzymes active-sites, whose three dimensional structures were obtained from X-ray crystallographic data, followed by extensive conformational analysis on their computer-generated complexes. The results of this study also account for the high enantioselective and good yielding hydrolysis of 3 (as the corresponding 2-chloroethyl ester) catalyzed by CRL pretreated with 2-propanol, recently reported in the literature, and lead to admit that such a treatment may operate very deep conformational changes on the amino acids of the enzyme active-site.
Collapse
Affiliation(s)
- M Botta
- Dipartimento Farmaco Chimico Tecnologico, Università degli Studi di Siena, Italy
| | | | | | | | | |
Collapse
|
29
|
Battinelli L, Cernia E, Delbò M, Ortaggi G, Pala A, Soro S. New class of poly(vinyl alcohol) polymers as column-chromatography stationary phases for Candida rugosa lipase isoforms separation. J Chromatogr A 1996; 753:47-55. [PMID: 8962504 DOI: 10.1016/s0021-9673(96)00482-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [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: 02/03/2023]
Abstract
The preparation of new stationary phases of cross-linked polyvinyl alcohol esterified with various linear fatty acids is described. The physico-chemical properties of these polymers are reported, including electron microscopy and swelling measurements. Batch adsorption experiments were performed in order to characterize the basic separative properties of these phases. Cross-linked polyvinyl alcohol esterified with dodecanoic acid was used for hydrophobic interaction chromatography of a commercial crude preparation of Candida rugosa lipase. Characterization of the purified fractions was carried out via native electrophoresis and sodium dodecyl sulfate-polyacrylamide electrophoresis.
Collapse
Affiliation(s)
- L Battinelli
- Dipartimento di Chimica, Università degli Studi di Roma La Sapienza, Italy
| | | | | | | | | | | |
Collapse
|
30
|
Botta M, Cernia E, Corelli F, Manetti F, Soro S. Probing the substrate specificity for lipases. A CoMFA approach for predicting the hydrolysis rates of 2-arylpropionic esters catalyzed by Candida rugosa lipase. Biochim Biophys Acta 1996; 1296:121-6. [PMID: 8765237 DOI: 10.1016/0167-4838(96)00064-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The enzyme catalyzed hydrolysis of esters 1-3, precursors of therapeutically important non-steroidal antiinflammatory drugs, in the presence of the lipase from Candida rugosa was studied and the relative rates of the enzymatic hydrolysis were determined. With the exception of 3, which was not transformed under the reaction conditions, all transformations proved to be highly enantiospecific. Usually the mechanism of enantiorecognition is probed by substrate mapping. Although more theoretical approaches are existing, these all require knowledge of the three-dimensional structure of the enzyme. A model capable of correlating the extent of substrate hydrolysis as well as the initial reaction rates with their stereoelectronic properties has been developed by a Comparative Molecular Field Analysis (CoMFA) approach. This model does not require detailed knowledge of the three-dimensional structure of the enzyme and proved to be highly predictive. It is possible that this kind of approach holds promise for future work on enzyme-substrate interactions.
Collapse
Affiliation(s)
- M Botta
- Dipartimento Farmaco Chimico Tecnologica, Università di Siena, Italy
| | | | | | | | | |
Collapse
|
31
|
Nasakin OE, Lukin PM, Lyshchikov AN, Soro S, Khrustalev VN, Struchkov YT. Synthesis of bisalkenyl ethers by the reaction of 1,1,2,2-tetracyanoethane with ?-alkylacroleins in isopropyl alcohol. Russ Chem Bull 1996. [DOI: 10.1007/bf01433772] [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]
|
32
|
Abstract
The prevalence of significant hypertension in childhood may be higher than expected. We have measured sitting blood pressure in 168 11-yr-old children attending a pre-high school in the Neapolitan area on four occasions over a 3-month period. We have also measured blood pressure and heart rate during a mental arithmetic test and during isometric exercise. Prevalence of significant hypertension (diastolic blood pressure 82-90 mmHg) was 13% at the first visit and decreased to 6.5% at the last visit; prevalence of severe hypertension (diastolic blood pressure greater than or equal to 90 mmHg) decreased from 5.4% to 1.2% from the 1st to the 4th visit. No sex-related difference was observed. A more frequently positive family history of hypertension (50% vs 30% in the fifth and first quintile of blood pressure, respectively) and higher body weight (body mass index = 21.4 vs 19.3 kg/m2) were found in children in the 5th quintile of blood pressure distribution. Blood pressure increased during mental arithmetic by 10/13% of the resting values in the first quintile and by 6/11% in the last one during mental test; during handgrip the increase was of 20/37% and 24/46%, respectively: differences between quintiles did not reach statistical significance. These data show that about 8% of a Neapolitan sample of school population have high blood pressure levels, while no difference in vascular reactivity to sympathetic stimulation was detected in children with higher blood pressure.
Collapse
Affiliation(s)
- L A Ferrara
- Institute of Internal Medicine and Metabolic Diseases, 2nd Medical School, University of Naples, Italy
| | | | | | | | | | | |
Collapse
|
33
|
Abstract
The effect of lacidipine, a dihydropyridine calcium antagonist on lipid metabolism, has been followed in 8 patients with uncomplicated mild to moderate essential hypertension treated for up to 14 months. There were significant reductions in the systolic and diastolic pressures, from 167/102 to 146/91 mm Hg at 2 months, and to 137/85 mm Hg at the end of the study. Blood lipid concentrations did not change during the observation period (cholesterol 5.1 vs 5.3 mmol.l-1, triglycerides 1.1 vs 1.0 mmol.l-1, HDL-cholesterol 1.1 vs 1.2 mmol.l-1). The results show that lacidipine did not affect lipid metabolism and suggest that calcium antagonists may be safely prescribed for a prolonged period to patients with combined hypertension and hyperlipidaemia.
Collapse
Affiliation(s)
- S Soro
- Institute of Internal Medicine and Metabolic Diseases, 2nd Medical School, University of Naples, Italy
| | | |
Collapse
|
34
|
Abstract
The chronic antihypertensive effect of the combination of ketanserin (KET) 40 mg + hydrochlorothiazide (HCTZ) 12.5 mg was evaluated in 20 patients with arterial hypertension of mild to moderate degree. After a 2-week wash-out period, patients were prescribed a single oral dose of KET 40 mg or HCTZ 25 mg in a randomized order at 2-day intervals and blood pressure and heart rate were measured during the following 24 hrs by an automatic recorder. Thereafter patients were given the combination of KET 40 mg + HCTZ 12.5 mg for 6 weeks and 24 hrs blood pressure was recorded after the first dose of the combination and at the end of treatment. Ketanserin induced a significant fall in systolic and diastolic pressures for up to 8 hrs; thiazide did not induce any change in these parameters. The combination of KET + HCTZ in the acute study reduced significantly systolic (SBP) and diastolic (DBP) blood pressures for up to 10 hrs. After 6 weeks of treatment with KET + HCTZ, blood pressure showed a further fall at each time period and was normalized (BP greater than 160/80 mmHg) for 8 hrs after dosing. The results of this study indicate that once daily oral administration of the combination of KET 40 mg + HCTZ 12.5 mg in mild to moderate primary hypertensives significantly reduces blood pressure over 24 hrs. Fairly good control of BP, i.e. BP less than 160/90 mmHg, was, however, achieved only up to 8 hrs after drug administration, indicating that this combination given once daily is not able to normalize BP over the following 24 hrs.
Collapse
Affiliation(s)
- S Soro
- Institute of Internal Medicine and Metabolic Diseases, Second Medical School, University of Naples, Italy
| | | | | | | |
Collapse
|
35
|
Soro S, Cocca A, Pasanisi F, Tommaselli A, de Simone G, Costantino G, Ferrara LA. The effects of nicardipine on sodium and calcium metabolism in hypertensive patients: a chronic study. J Clin Pharmacol 1990; 30:133-7. [PMID: 2179277 DOI: 10.1002/j.1552-4604.1990.tb03451.x] [Citation(s) in RCA: 5] [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] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
There is evidence in the literature that calcium entry blockers are able to affect calcium-dependent hormone secretion and therefore can influence sodium and calcium metabolism. We have studied in 18 mild to moderate hypertensives (27-65 yrs) the effects of chronic treatment with nicardipine, a dihydropyridine derivative, vs placebo on: 1) renin-angiotensin-aldosterone axis; 2) parathyroid hormone and calcium metabolism; 3) daily sodium and calcium urinary excretion. After a 2-week placebo wash-out when any antihypertensive treatment was withdrawn, patients were kept on a well balanced normocaloric diet without salt intake restriction. Blood pressure, plasma renin and serum aldosterone after a 1-hour standardized walk, serum PTH, serum and 24-hour urinary Na, K, Ca, P, Mg were measured. Thereafter patients were randomly and blindly given nicardipine 20 mg tid or placebo tablet tid for 2 months. At the end of this period the same measurements were repeated. Blood pressure significantly dropped during nicardipine (from 165/96 +/- 19/9 vs 150/88 +/- 16/9 mm Hg P less than .05) without change in heart rate. No change was observed on placebo. Plasma renin, serum aldosterone, serum parathyroid hormone and serum and urinary electrolytes did not change during active and placebo treatment. The results of this study suggest that chronic nicardipine does not affect hormone secretion.
Collapse
Affiliation(s)
- S Soro
- Institute of Internal Medicine and Metabolic Diseases, University of Naples, Italy
| | | | | | | | | | | | | |
Collapse
|
36
|
de Simone G, Costantino G, Soro S, Di Lorenzo L, Moccia D, Buonissimo S, Ferrara LA. Effects of nicardipine on left ventricular hemodynamic patterns in systemic hypertension. Am J Hypertens 1989; 2:139-45. [PMID: 2522007 DOI: 10.1093/ajh/2.3.139] [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] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
To assess left ventricular (LV) functional and structural changes associated with the reduction of blood pressure (BP) values during nicardipine administration (60 mg daily, for two months), 17 hypertensive patients were studied by M-mode echocardiography, according to a double-blind design (11 with nicardipine and six with placebo). Decrease in BP induced by nicardipine was associated with decrease in myocardial afterload (end-systolic stress) (P less than .002) and improvement of systolic function (fractional shortening) (P less than .02), without changes in inotropic state (assessed by systolic BP/end-systolic dimension/posterior wall thickness ratio). At the end of trial, a 5% reduction was found in LV mass (P less than .002), whereas relative wall thickness did not change. Diastolic phase (assessed by relaxation time index, and the slope of EF tract of the anterior mitral valve leaflet) was improved (.01 less than P less than .001). Patients with concentric and eccentric hypertrophy were separately considered. Relaxation time index and fractional shortening were significantly improved only in patients with concentric hypertrophy (P less than .01), whereas in the other ones the effect of treatment was variable. These differences were probably due to different effects on preload in the two LV hemodynamic patterns. Thus, nicardipine shows powerful effects on cardiac mechanics in systemic hypertension, but these effects are different according to LV anatomic pattern. Only in the presence of concentric hypertrophy is it possible to foresee the improvement of LV function; LV hypertrophy can be also reduced in concentric hypertrophy, but in the short term the reduction is too small to assume pathophysiologic significance.
Collapse
Affiliation(s)
- G de Simone
- Institute of Internal Medicine and Metabolic Diseases, 2nd Medical School, University of Naples, Italy
| | | | | | | | | | | | | |
Collapse
|
37
|
Abstract
Lipoprotein lipase activity, total serum cholesterol and triglycerides, HDL cholesterol were determined before and after two weeks of treatment with a low dose of an alpha 1-blocking agent (prazosin) or of a beta-adrenergic-blocking drug (metoprolol). Lipoprotein lipase activity was almost doubled after prazosin (p less than 0.02) and practically unchanged after metoprolol, at a time and at a drug dosage when only minor changes in blood pressure and serum lipids were detectable. HDL cholesterol was slightly but significantly increased after prazosin (p less than 0.05). Heart rate was increased after prazosin (p less than 0.05) and decreased after metoprolol (p less than 0.01).
Collapse
Affiliation(s)
- P Rubba
- Istituto di Medicina Interna e Malattie Dismetaboliche, II Facoltà di Medicina, University of Napoli, Italy
| | | | | | | | | | | |
Collapse
|
38
|
Aldo Ferrara L, Soro S, Mainenti G, Mancini M, Pisanti N, Borrelli R, Moscato T, Mancini M. Body weight and cardiovascular response to sympathetic stimulation in childhood. Int J Obes (Lond) 1989; 13:271-7. [PMID: 2767880] [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: 01/02/2023]
Abstract
The possible relationship between cardiovascular response to adrenergic stimulation and body weight has been studied in 166 eleven-year-old students (103 male, 63 female). Resting blood pressure (BP) by random-zero machine, heart rate (HR) and body weight (BMI) were measured four times in the school at 3-week intervals. On the third visit a mental arithmetic stress was carried out and a 24 h urine specimen was collected for the measurements of catecholamine excretion. On the fourth visit students carried out an isometric exercise (handgrip). Girls were more frequently found in the last quintiles of BMI (10/33 in the first vs 19/33 in the fifth). This might be due to a more advanced sexual maturation. BP at rest significantly increased with body weight (from 105/81 +/- 11/13 mmHg in the first to 119/87 +/- 10/12 in the fifth quintile). In each quintile no sex-related difference was observed in BP or HR. A marked cardiovascular response was observed during both tests without significant difference among quintiles. The 24 h urinary excretion of total catecholamines slightly increased with body weight (from 26.2 +/- 11 micrograms/24 h in the first to 34.5 +/- 19.5 micrograms/24 h in the fifth quintile). These data in a population of 11-year-old students therefore support the hypothesis that although BP at rest is influenced by BMI, the cardiovascular response to adrenergic stimulation is independent of body weight.
Collapse
Affiliation(s)
- L Aldo Ferrara
- Institute of Internal Medicine, University of Naples, Italy
| | | | | | | | | | | | | | | |
Collapse
|
39
|
Costantino G, Di Lorenzo L, Buonissimo S, Moccia D, Soro S, Ferrara LA, De Simone G. [Echocardiographic analysis of anatomical and functional changes in the left heart ventricle during antihypertensive treatment with nicardipine]. G Ital Cardiol 1988; 18:644-8. [PMID: 2977346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Changes in hemodynamic variables regulating systolic function were assessed by M-mode echocardiography, under 2D control, in 11 patients with primary uncomplicated hypertension treated with nicardipine (60 mg/daily). At the end of treatment (8 weeks) blood pressure and end-systolic stress were greatly reduced (p less than 0.001), and systolic fractional shortening was increase (p less than 0.02). The percentage increase in fractional shortening was correlated with a decreased in end-systolic stress (r = 0.67). The index of left ventricular performance (systolic pressure/end-systolic dimension ratio) was reduced: no variation was found in the hypertrophy-independent index of the inotropic state (systolic pressure/end-systolic dimension ratio normalized for posterior wall thickness). No change in the inotropic state was caused by a negligible sympathetic reflex outflow: heart rate also remained unchanged. The only index of left ventricular hypertrophy which was slightly reduced after two months of treatment was left ventricular mass (p less than 0.001). In conclusion, the short-term treatment with nicardipine, in hypertensive patients, showed powerful effects in the improvement of systolic function; the possible regression of left ventricular hypertrophy must be confirmed in long-term therapy.
Collapse
Affiliation(s)
- G Costantino
- Istituto di Medicina Interna e Malattie Dismetaboliche, II Facoltà di Medicina e Chirurgia dell'Università degli Studi di Napoli
| | | | | | | | | | | | | |
Collapse
|
40
|
de Simone G, di Lorenzo L, Ferrara LA, Costantino G, Fasano ML, Soro S, Mancini M. Noninvasive assessment of hemodynamic changes during therapy with nitrendipine in arterial hypertension. Jpn Heart J 1987; 28:73-84. [PMID: 3599405 DOI: 10.1536/ihj.28.73] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Changes in hemodynamic variables regulating systolic function were examined by M-mode echocardiography in 14 patients with long-duration primary uncomplicated hypertension treated with nitrendipine once daily (20 mg). At the end of treatment (8th week) blood pressure and peripheral resistance were greatly reduced (p less than 0.0001), while the indices of cardiac function (ejection fraction and cardiac index) showed significant increases (p less than 0.01). The variations in ejection fraction were analyzed by multiple linear regression and were mainly influenced by the decrease in end-systolic stress (contribution: 60%). At baseline, despite no radiographic or clinical signs of heart failure, 6 of the studied patients showed impaired systolic function, likely due to the strength of other variables (age, risk factors); in those patients, systolic function was clearly enhanced at the end of treatment, while no change was found in patients with initial normal pump function. Changes in cardiac output were due to a significant increase in heart rate in patients with normal pump function and to improved stroke volume in the others. Left ventricular mass index was slightly reduced (p less than 0.005), primarily because of the reduction in end-diastolic volume (p less than 0.01). When analyzed by the 2 subgroups (with or without impaired systolic function), the left ventricular mass index appeared to be significantly reduced only in those patients with normal basal pump function. This difference was most likely due to the different effects of treatment on end-diastolic volume.
Collapse
|
41
|
Abstract
The role of lipoprotein lipase in the pathophysiology of lipid changes during alpha-receptor or beta-receptor blockade was evaluated in this clinical trial. Thirty hypertensive patients were given 2 mg of prazosin twice daily or 100 mg of metoprolol twice daily for 10 weeks, according to an open, randomized protocol. Both drugs were effective in reducing arterial blood pressure (from 153 +/- 16/102 +/- 6 mm Hg to 146 +/- 12/92 +/- 8 mm Hg with prazosin and from 158 +/- 17/103 +/- 8 to 144 +/- 14/94 +/- 10 mm Hg with metoprolol). Prazosin significantly reduced total plasma cholesterol from 202 +/- 39 to 188 +/- 36 mg/dl and increased high-density lipoprotein cholesterol from 36 +/- 8 to 40.5 +/- 11 mg/dl. Prazosin did not affect plasma triglycerides levels, whereas patients taking metoprolol had a slight rise in these levels, from 122 +/- 42 to 142 +/- 57 mg/dl, along with a decrease in high-density lipoprotein cholesterol from 37 +/- 10 to 31 +/- 8 mg/dl. The concentration of apoprotein B did not change significantly with either treatment. Lipoprotein lipase activity increased in the prazosin group from 28.4 +/- 16 to 37.7 +/- 14 mumol/liter per minute (p less than 0.01), but did not change significantly (29.9 +/- 12 versus 32.8 +/- 8 mumol/liter per minute) in patients treated with the beta blocker. These data, which confirm previous reports of serum lipid changes during antihypertensive therapy, suggest that alpha1 blockers may interfere with lipoprotein lipase, possibly by reducing its catecholamine-mediated inactivation.
Collapse
|
42
|
|
43
|
Ferrara LA, Fasano ML, de Simone G, Soro S, Gagliardi R. Antihypertensive and cardiovascular effects of nitrendipine: a controlled study vs. placebo. Clin Pharmacol Ther 1985; 38:434-8. [PMID: 2931232 DOI: 10.1038/clpt.1985.200] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The antihypertensive and cardiovascular effects of nitrendipine, a calcium entry blocker similar to nifedipine, have been evaluated in a double-blind, placebo-controlled study in 20 patients with hypertension. At baseline and at the end of the 8-week period (nitrendipine, 20 mg once a day, or placebo, 1 tablet once a day) the following parameters were measured: systolic and diastolic blood pressure (BP) and heart rate (HR) at rest by an automatic recorder; BP, HR, and cardiac workload (systolic BP X HR) during exercise testing on a bicycle; left ventricular mass (LVMe according to the method of Devereux) and cross-sectional area (CSA), and main parameters of systolic function (end diastolic volume, end systolic volume [ESV], and ejection fraction [EF]) by M mode echocardiography. There was a significant decrease in BP at rest (163/108 vs. 144/92 mm Hg; P less than 0.001) and during exercise in subjects receiving nitrendipine, while placebo did not modify these parameters. LVMe (from 195 to 188 gm; P less than 0.01) and CSA (from 20.2 to 19.8 cm2; P less than 0.05) were reduced by nitrendipine, which also improved cardiac performance (ESV fell from 44 to 38 ml [P less than 0.001] and EF fell from 62% to 66% [P less than 0.01]). No effect was observed in the placebo group. Our results indicate that nitrendipine is a powerful antihypertensive agent that also improves cardiac performance and slightly but significantly reduces left ventricular mass.
Collapse
|
44
|
Ferrara LA, Fasano ML, Soro S, Rubba P, Iannuzzi A. Cardiovascular effects of ketanserin, a new antiserotonergic agent in the treatment of arterial hypertension. J Clin Pharmacol 1985; 25:187-92. [PMID: 3158674 DOI: 10.1002/j.1552-4604.1985.tb02823.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Ketanserin, an investigational, antiserotonergic agent, at a dose of 40 mg bid was given to 18 patients with mild to moderate primary hypertension in a randomized, double-blind, crossover study, with 100-mg metoprolol bid for four weeks each. The following parameters were evaluated: blood pressure, heart rate, cardiac workload (product of systolic blood pressure and heart rate during bicycle exercise), systolic time intervals, and peripheral blood flow (by strain-gauge plethysmography). Significant reductions in diastolic and concomitant slight decreases in systolic blood pressure without changes in heart rate were observed during ketanserin treatment; cardiac oxygen demands during exercise test did not change, however. Pre-ejection period and left ventricular ejection time were unchanged, while significant increase in rest flow to the lower limbs and decrease in peripheral resistance were demonstrated by strain-gauge plethysmography. The results indicate that ketanserin has vasodilating properties and hypotensive activity that may be useful in the management of patients with essential hypertension.
Collapse
|
45
|
Abstract
The effect of nitrendipine 20 mg o.d., a new calcium entry blocker similar in structure to nifedipine, on blood pressure has been evaluated in 14 patients (aged 24-62 years) with uncomplicated mild or moderate arterial hypertension. A significant decrease both in systolic (160 +/- 12 at baseline vs 141 +/- 8 mm Hg, p less than 0.001) and diastolic (106 +/- 8 vs 93 +/- 3 mm Hg, p less than 0.001) blood pressure was observed at the end of 8 weeks of nitrendipine treatment. An inverse correlation was found between age and the reduction in diastolic blood pressure (r = 0.772, p less than 0.001 as absolute reduction; r = 0.791, p less than 0.001 as percentage reduction versus baseline). This peculiar characteristic differentiates the effect of nitrendipine from that of other calcium entry blockers, which appear to be more effective in older patients.
Collapse
|
46
|
Ferrara LA, Giumetti D, Fasano ML, Soro S, Iannuzzi A, Strazzullo P, Mancini M. Once a day indapamide therapy in hypertension. Effects on the heart and peripheral arterial circulation. Jpn Heart J 1983; 24:731-7. [PMID: 6668661 DOI: 10.1536/ihj.24.731] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Indapamide, a sulphonamide derivative, was prescribed for 8 weeks at low dose (2.5 mg once a day) to 14 hypertensive patients in order to investigate its effects on systolic and diastolic blood pressure (SBP, DBP), cardiac function and peripheral arterial resistance (PAR). During treatment we observed decreases in both SBP and DBP without any change in HR in the supine and standing positions and on exercise. As a result cardiac work was significantly reduced. Slight changes in pre-ejection period (PEP) and left ventricular ejection time (LVET) along with a more significant decrease in rate of rise of left ventricular pressure (DBP to PEP ratio) were observed during treatment. An increase in RBF and a decrease in PAR were also detected in the peripheral circulation. These findings may indicate that indapamide antagonizes the cardiovascular effects of catecholamines.
Collapse
|
47
|
Delia S, Nuti M, Soro S. [Relations between hepatitis B surface antigen and parasitic diseases: observations in patients with ancylostomiasis and schistosomiasis]. Quad Sclavo Diagn 1977; 13:238-43. [PMID: 594309] [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: 12/23/2022]
Abstract
Hepatitis B antigen carriage was studied in Somalia in 155 patients with ancylostomiasis, with urinary schistosomiasis and with leprosy (lepromatosus and tuberculoid type and leprosy with schistosomiasis). The results have showed a significantly (p less than 0,001) higher frequency of HBsAg among the patients with ancylostomiasis (33,33%) and with urinary schistosomiasis (25,92%) than either the leprosy patients (9,67% in the L type and 6,89% in the T type) or the controls (11,11%); in the leprosy patients with schistosomiasis the frequency was 40,0%. The role of some penetrating skin parasites in the epidemiology of hepatitis B was discussed.
Collapse
|