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The National Institute of Health and the Italian Poison Centers Network: results of a collaborative study for the surveillance of exposures to chemicals. ANNALI DI IGIENE : MEDICINA PREVENTIVA E DI COMUNITA 2021; 34:137-149. [PMID: 33908599 DOI: 10.7416/ai.2021.2454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Results Important information was obtained, regarding also exposures to chemicals and their management in pediatric populations. The surveillance network was proved effective not only under "normal" conditions but also to promptly monitor changes during exceptional health emergencies, such as the COVID-19 pandemic. During the 2020 lockdown the surveillance system registered a significant increase in the frequency of exposures to disinfectants (p-value=0.002), an evidence that highlighted the need of tailored intervention. Conclusions This Italian Project model proves to be reliable and suitable to be transferred to other European countries, in order to realize an European Poison Centers' Network, able to overcome unsolved health problems and to globally improve the "evidence-based" prevention of exposures to chemicals. Background The Public Health Surveillance Systems are essential to improve and protect public health, as highlighted by the World Health Organization. According with this consideration, a systematic collaboration between the National Institute of Health and the Poison Centers of Northern, Central and Southern Italy was established. Its aim was to improve the national network for the surveillance of dangerous exposures to chemicals. The developed network provided harmonized data essential for evidence-based interventions and significantly ameliorated the data flow between the Poison Centers and the Central Health Institutions. Methods The improvement of the system was obtained through several actions, such as the development of the "Online Surveillance Card" for the detection of sentinel events in real time and the harmonization of the data collection flow, including the product categorization according to the European Product Categorization System. Data analysis was carried out by Microsoft's IBM SPSS Statistics version 26, Access and Excel.
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Typical and atypical carcinoid tumors of the lung: a clinicopathological correlation of 783 cases with emphasis on histological features. Hum Pathol 2020; 98:98-109. [PMID: 32145220 DOI: 10.1016/j.humpath.2020.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 02/17/2020] [Accepted: 02/23/2020] [Indexed: 11/17/2022]
Abstract
We present 783 surgical resections of typical and atypical carcinoid tumors of the lung identified in the pathology files of 20 different pathology departments. All cases were critically reviewed for clinical and pathological features and further correlated with clinical outcomes. Long-term follow-up was obtained in all the patients and statistically analyzed to determine significance of the different parameters evaluated. Of the histopathological features analyzed, the presence of mitotic activity of 4 mitoses or more per 2 mm2, necrosis, lymphatic invasion, and lymph node metastasis were identified as statistically significant. Tumors measuring 3 cm or more were also identified as statistically significant and correlated with clinical outcomes. Based on our analysis, we consider that the separation of low- and intermediate-grade neuroendocrine neoplasms of the lung needs to be readjusted in terms of mitotic count as the risk of overgrading these neoplasms exceeds 10% under the current criteria. We also consider that tumor size is an important feature to be considered in the assessment of these neoplasms and together with the histological grade of the tumor offers important features that can be correlated with clinical outcomes.
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Refractory α/β-Hepatosplenic T-cell Lymphoma With Secondary CNS Dissemination and Severe Morbidity Related to Intrathecal Chemotherapy: A Case Report and Literature Review. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2019; 19:e564-e567. [DOI: 10.1016/j.clml.2019.05.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 05/09/2019] [Accepted: 05/24/2019] [Indexed: 10/26/2022]
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Secondary haemophagocytic lymphohistiocytosis due to checkpoint inhibitor therapy. Eur J Cancer 2019; 115:84-87. [PMID: 31129384 DOI: 10.1016/j.ejca.2019.04.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 04/11/2019] [Indexed: 11/26/2022]
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Implementation of next generation sequencing technology for somatic mutation detection in routine laboratory practice. Pathology 2018; 50:389-401. [DOI: 10.1016/j.pathol.2018.01.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 12/21/2017] [Accepted: 01/09/2018] [Indexed: 02/08/2023]
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Detection of Epidermal Growth Factor Receptor Mutations in Lung Adenocarcinoma: Comparing Cobas 4800 EGFR Assay With Sanger Bidirectional Sequencing. Clin Lung Cancer 2016; 17:e113-e119. [DOI: 10.1016/j.cllc.2016.02.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 02/03/2016] [Accepted: 02/08/2016] [Indexed: 11/28/2022]
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Synchronous biphenotypic Richter syndrome with Epstein-Barr virus-positive nodal classical Hodgkin lymphoma and bone marrow diffuse large B-cell lymphoma. Histopathology 2016; 69:707-10. [PMID: 27079556 DOI: 10.1111/his.12984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Detection of EGFR mutations in lung adenocarcinoma; comparing cobas 4800 EGFR assay with Sanger bi-directional sequencing. Pathology 2016. [DOI: 10.1016/j.pathol.2015.12.387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Choroidal involvement in Rosai-Dorfman syndrome may be depicted and followed using enhanced depth imaging optical coherence tomography (EDI-OCT). Graefes Arch Clin Exp Ophthalmol 2015; 253:1821-2. [PMID: 25825230 DOI: 10.1007/s00417-015-2988-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 03/02/2015] [Indexed: 11/29/2022] Open
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Aggressive and nonaggressive translocation t(6;11) renal cell carcinoma: comparative study of 6 cases and review of the literature. Ann Diagn Pathol 2014; 18:351-7. [DOI: 10.1016/j.anndiagpath.2014.10.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 10/06/2014] [Indexed: 11/25/2022]
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National Working Group Meeting on ALK diagnostics in lung cancer. Asia Pac J Clin Oncol 2014; 10 Suppl 2:11-7. [PMID: 24673736 DOI: 10.1111/ajco.12190] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/13/2014] [Indexed: 11/27/2022]
Abstract
The global landscape of molecular testing is rapidly changing, with the recent publication of the International Association for the Study of Lung Cancer (IASLC)/College of American Pathologists (CAP) guidelines and the ALK Atlas. The IASLC/CAP guidelines recommend that tumors from patients with non-small cell lung cancer (NSCLC) be tested for ALK rearrangements in addition to epidermal growth factor receptor (EGFR) mutations. The spur for this recommendation is the availability of novel therapies that target these rearrangements. This article is based on coverage of a Pfizer-sponsored National Working Group Meeting on ALK Diagnostics in Lung Cancer, held around the 15th World Lung Cancer Conference, in Sydney on October 31, 2013. It is based on the presentations given by the authors at the meeting and the discussion that ensued. The content for this article was discussed and agreed on by the authors.
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Percutaneous transvesical chorionic villus sampling: a safe alternative method for difficult procedures? ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2014; 44:115-116. [PMID: 24452832 DOI: 10.1002/uog.13307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2013] [Revised: 01/04/2014] [Accepted: 01/10/2014] [Indexed: 06/03/2023]
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Anaplastic large-cell lymphoma associated with breast implants: A unique entity within the spectrum of peri-implant effusions. Diagn Cytopathol 2014; 42:929-38. [DOI: 10.1002/dc.23152] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Revised: 03/09/2014] [Accepted: 03/13/2014] [Indexed: 12/17/2022]
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Population-based screening for Lynch syndrome in Western Australia. Int J Cancer 2014; 135:1085-91. [PMID: 24474394 DOI: 10.1002/ijc.28744] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Accepted: 12/13/2013] [Indexed: 11/11/2022]
Abstract
We showed earlier that routine screening for microsatellite instability (MSI) and loss of mismatch repair (MMR) protein expression in colorectal cancer (CRC) led to the identification of previously unrecognized cases of Lynch syndrome (LS). We report here the results of screening for LS in Western Australia (WA) during 1994-2012. Immunohistochemistry (IHC) for loss of MMR protein expression was performed in routine pathology laboratories, while MSI was detected in a reference molecular pathology laboratory. Information on germline mutations in MMR genes was obtained from the state's single familial cancer registry. Prior to the introduction of routine laboratory-based screening, an average of 2-3 cases of LS were diagnosed each year amongst WA CRC patients. Following the implementation of IHC and/or MSI screening for all younger (<60 years) CRC patients, this has increased to an average of 8 LS cases diagnosed annually. Based on our experience in WA, we propose three key elements for successful population-based screening of LS. First, for all younger CRC patients, reflex IHC testing should be carried out in accredited pathology services with ongoing quality control. Second, a state- or region-wide reference laboratory for MSI testing should be established to confirm abnormal or suspicious IHC test results and to exclude sporadic cases by carrying out BRAF mutation or MLH1 methylation testing. Finally, a state or regional LS coordinator is essential to ensure that all appropriate cases identified by laboratory testing are referred to and attend a Familial Cancer Clinic for follow-up and germline testing.
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19. Folliculotropic mycosis fungoides with cysts and comedones. Pathology 2013. [DOI: 10.1097/01.pat.0000427019.49170.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Transvaginal ultrasound predicts delayed response to chemotherapy and drug resistance in stage I low-risk trophoblastic neoplasia. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2012; 40:99-105. [PMID: 22262502 DOI: 10.1002/uog.11097] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVES Methotrexate (MTX) resistance is defined on the basis of the human chorionic gonadotropin (hCG) curve. The aim of this study was to identify low-risk non-metastatic patients with gestational trophoblastic neoplasia (GTN) who can achieve resolution by continuing MTX treatment despite a transient hCG plateau. METHODS Before starting chemotherapy, 24 patients with FIGO Stage I GTN underwent transvaginal ultrasonography with power Doppler in order to identify myometrial lesions (areas of increased echogenicity and increased power Doppler signal). Ultrasound response to chemotherapy was defined when myometrial lesions decreased in echogenicity, Doppler signal or size. When ultrasound response occurred, despite chemoresistance defined by hCG values, MTX treatment was continued. RESULTS MTX was continued in three out of seven chemoresistant patients because ultrasound suggested response to MTX. All three of these patients achieved a complete response, thus nearly halving the MTX-resistance rate. CONCLUSION Among patients who are candidates for second-line treatment on the basis of hCG, ultrasound may identify those in whom further MTX administration can induce a delayed complete response.
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Molecular surveillance of pandemic influenza A(H1N1) viruses circulating in Italy from May 2009 to February 2010: association between haemagglutinin mutations and clinical outcome. ACTA ACUST UNITED AC 2010; 15. [PMID: 21087581 DOI: 10.2807/ese.15.43.19696-en] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Haemagglutinin sequences of pandemic influenza A(H1N1) viruses circulating in Italy were examined, focusing on amino acid changes at position 222 because of its suggested pathogenic relevance. Among 169 patients, the D222G substitution was detected in three of 52 (5.8%) severe cases and in one of 117 (0.9%) mild cases, whereas the D222E mutation was more frequent and evenly distributed in mild (31.6%) and severe cases (38.4%). A cluster of D222E viruses among school children confirms reported human-to-human transmission of viruses mutated at amino acid position 222.
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Tumoral, quasitumoral and pseudotumoral lesions of the superficial and somatic soft tissue: new entities and new variants of old entities recorded during the last 25 years. Part XII: appendix. Pathologica 2006; 98:239-98. [PMID: 17175794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023] Open
Abstract
In an eleven part series published in Pathologica, we have presented various tumoral, quasitumoral and pseudotumoral lesions of the superficial and somatic soft tissue (ST), which emerged as new entities or as variants of established entities during the last quarter of a century. Detailed clinicomorphological and differential diagnostic features of approximately sixty entities were chosen on the basis of their clinical significance and morphologic distinctiveness. The series included fibrous and myofibroblastic tumors (e.g. solitary fibrous tumor, high grade classic and pigmented dermatofibrosarcoma protuberans, inflammatory myofibroblastic tumor and myofibrosarcomas), fibromyxoid and fibrohistiocytic neoplasms (e.g., Evans' tumor, phosphaturic mesenchymal tumor, inflammatory myxohyaline tumor), special adipocytic/vascular/and smooth muscle lesions (e.g., chondroid lipoma, Dabska's tumor, ST hemangioblastoma, lipoleiomyosarcoma), epithelioid mesenchymal malignancies of diverse lineages (e.g., epithelioid liposarcoma, proximal-type epithelioid sarcoma, neuroendocrine extraskeletal chondromyxoid sarcoma), ST Ewing's tumor and peripheral nerve sheath tumors (perineuriomas and pigmented and rosetting tumors of the schwannoma/neurofibroma group), extranodal dendritic or histiocytic proliferative processes (follicular dendritic cell sarcoma, Rosai-Dorfman disease, Castleman's disease, and plexiform xanthomatous tumor), and tumors with myoepithelial differentiation. The section devoted to selected pseudotumoral entities considered representatives of the hamartoma group (neural fibrolipomatous hamartoma, ectopic hamartomatous thymoma, rudimentary meningocele), metabolic diseases (amyloid tumor, nephrogenic fibrosing dermopathy, tophaceous pseudogout, pseudoinfiltrative parathyromatosis), stromal tissue reactions to trauma (fibroosseous pseudotumors of digits) and infections (bacillary angiomatosis), and normal organs (glomus coccygeum). To conclude the descriptive phase, supplementary material has now been collected and appended in an attempt to provide a quick digest of essential knowledge both for comparison and differential diagnosis. The data have been tailored to synthesize diverse sources, integrating clinical elements and references to articles that previously appeared in Part I ("Introduction"), Part II ("The List and Review of New Entities") and Parts III to XI ("Excerpta"). At the very least we hope this final part ("Appendix") will provide the reader with a useful tabular organization of ST lesions and a reference resource.
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Abstract
The last 20 years have seen a dramatic change in the way we classify, and therefore diagnose, lymphoma. Two decades ago, the International Working Formulation enabled diagnosis and management on the basis of H&E sections alone, with no mandatory requirement for immunophenotyping, molecular studies or any other ancillary investigations. The concept of categorisation by 'clinicopathological entities' defined by clinical features, morphology, immunophenotype and more recently, genotype, began with the Kiel, and Lukes and Collins classifications in the late 1970s, becoming fully expressed in the REAL and subsequently WHO classifications. The current, multidisciplinary approach to categorisation adds significantly to the task facing the anatomical pathologist, since it requires distribution of biopsy material to all the appropriate specialised laboratories, the gathering of a range of cross-disciplinary information, the correlation of all diagnostic findings, deduction of a definitive diagnosis and, finally, integration of all the above into a single multiparameter report. In this review, we summarise the contemporary approach to the biopsy, diagnosis and reporting of lymphoproliferative disorders.
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Abstract
Four cases of solitary cylindroma of the breast of skin adnexal type are described. The tumors were morphologically and immunophenotypically identical to their dermal counterparts. They arose in close proximity to the nipple, such as the retroareolar area of the breast and in intimate association with the lactiferous ducts, suggesting an origin from the latter structures. One case occurred in a woman with hereditary multiple cylindromatosis (Brooke-Spiegler syndrome). This is the second reported case of this hereditary syndrome with extracutaneous manifestations and the first case in which the breast is involved.
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Abstract
The C(-344)T promoter polymorphism of the human aldosterone synthase (CYP11B2) gene has been associated with hypertension and cardiac hypertrophy, but there were contrasting data. We analysed the genotype/phenotype associations between this polymorphism and cardiovascular variables in a young adult population, where interactions among genes, gene-environment, and acquired ageing-related organ damage are reduced. Anthropometric measurements, blood pressure, heart rate, left ventricular variables (by echocardiography), and carotid artery wall intimal-media thickness (by high-resolution sonography and digitalized morphometry) were taken in 420 white Caucasian students (mean age 23.5 years, s.d. 2.5 years). CYP11B2 alleles were detected by genomic polymerase chain reaction followed by digestion. Taking into account the three possible models of inheritance, we found no differences in the considered variables, except for an independent effect of the C(-344) allele on SBP in males (TT 125.6 (1.6), TC 128.4 (1.2) and CC 130.5 (2.2), mmHg, media (ES), P=0.03), and on interventricular septum thickness in diastole in females (CC 6.98 (0.12) vs TT 6.87 (0.09) and TC 6.87 (0.07), mmHg, P<0.01), in the codominant model. In conclusion, the CYP11B2 C(-344)T polymorphism appears to have a slight role in the cardiovascular phenotype of young healthy adults, even if these genotype/phenotype relationships might change with ageing.
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274 Implication of the nitrogen monoxide system in anti-atherosclerotic potential of lacidipine in the apoe-deficient mice. Toxicol Lett 2003. [DOI: 10.1016/s0378-4274(03)90273-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Abstract
OBJECTIVES AND DESIGN Angiotensinogen (AGT) gene variants influence angiotensinogen plasma levels in children and young adults. The angiotensinogen promoter (-6)A variant facilitates gene transcription in human tissues and it has been associated with high blood pressure in older adults. A young adult population can be used as a model to study genotype/phenotype associations between AGT (-6) variants and cardiovascular variables. METHODS AND RESULTS Anthropometric measurements, blood pressure and heart rate were taken in 422 white Caucasian students (mean age 23.5 years, SD 2.5 years). Family history for hypertension, physical activity and smoking history were evaluated. Left ventricular variables were measured by echocardiography. Carotid artery wall intimal-media thickness (IMT) was measured by high resolution sonography and digitalized morphometry. The AGT G(-6)A alleles were evaluated by mutagenically separated polymerase chain reaction controlled by direct sequencing. No significant associations were found between angiotensinogen genotype and blood pressure, cardiac variables [except for deceleration time in females which increased with the number of (-6)A alleles] and IMT. Allele frequencies were similar between the first and third tertile of blood pressure and left ventricular mass, and were also similar between negative or positive family history for hypertension (the last group having significantly higher systolic blood pressure in males, P = 0.04 and diastolic blood pressure in females, P < 0.01). Moreover, no relevant interaction on the cardiovascular variables was found between AGT genotype and body mass index. CONCLUSIONS The angiotensinogen G(-6)A variants do not affect cardiovascular parameters in young adults, but an effect of this polymorphism on cardiovascular phenotype (and hypertension) in older adults cannot be excluded. Additional factors, associated with ageing, should be present to unleash the supposed unfavourable potential of the (-6)A angiotensinogen variant.
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Herniation of the amniotic sac into the bladder through a vesico-uterine fistula in the 32nd week of pregnancy. BJOG 2001; 108:1300-1. [PMID: 11843396 DOI: 10.1111/j.1471-0528.2001.00287.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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A novel promoter variant of the natriuretic peptide clearance receptor gene is associated with lower atrial natriuretic peptide and higher blood pressure in obese hypertensives. J Hypertens 1999; 17:1301-5. [PMID: 10489108 DOI: 10.1097/00004872-199917090-00010] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE AND DESIGN The clearance receptor for natriuretic peptides (NPRC), a candidate gene for essential hypertension, is highly expressed in adipose tissue, where is nutritionally regulated. The objectives of the present study were to sequence the human 5'-flanking regulatory region of NPRC, to identify allelic variants and their frequencies, and to study the genotype/phenotype correlation in hypertensive patients. METHODS AND RESULTS Using polymerase chain reaction (PCR) and direct automated sequencing, a biallelic (A/C) polymorphism was detected at position -55 in a conserved promoter element named P1. The novel C(-55) variant makes the promoter sequence identical to the mouse gene and introduces a second Hgal site in the amplified DNA, allowing the genotyping of a large number of subjects. In a random sample of 232 white Caucasians the C(-55) allele was more commonly found (81.7% of all alleles) with 155 CC (66.8%), 69 AC (29.7%) and only eight AA (3.5%) genotypes. Atrial natriuretic peptide (ANP) levels were determined in 84 patients with essential hypertension. In the presence of obesity (body mass index (BMI) > or = 30 kg/m2) the homozygous CC hypertensives (n = 21) had significantly lower plasma ANP (33.6 +/- 11.1 pg/ml) compared with the AC patients (n = 11; 46.8 +/- 15.9 pg/ml; P = 0.01), whereas systolic blood pressure (SBP) and mean blood pressure (MBP) had the opposite association (SBP 163.9 +/- 18.7 versus 150.9 +/- 12.9 and MBP 123.3 +/- 12 versus 114.5 +/- 5.9 mmHg; P< 0.05). The difference in ANP levels were also present when overweight patients (BMI > or = 27 kg/m2) were considered. CONCLUSION A common 'ancestral' C(-55) variant of the NPRC P1 promoter is associated with lower ANP levels and higher SBP and MBP in obese hypertensives. The C(-55) variant, in the presence of increased adiposity, might reduce plasma ANP through increased NPRC-mediated ANP clearance, contributing to higher blood pressure.
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Low calorie diet enhances renal, hemodynamic, and humoral effects of exogenous atrial natriuretic peptide in obese hypertensives. Hypertension 1999; 33:658-62. [PMID: 10024323 DOI: 10.1161/01.hyp.33.2.658] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The expression of the natriuretic peptide clearance receptor is abundant in human and rat adipose tissue, where it is specifically inhibited by fasting. In obese hypertensives, plasma atrial natriuretic peptide (ANP) levels were found to be lower than in obese normotensives. Therefore, the increased adipose mass might influence ANP levels and/or its biological activity. The aim of the present study was to evaluate whether the humoral, hemodynamic, and renal effects of exogenous ANP in obese hypertensives might be enhanced by a very low calorie diet. Eight obese hypertensives received a bolus injection of ANP (0.6 mg/kg) after 2 weeks of a normal calorie/normal sodium diet, and blood pressure (BP), heart rate, ANP, cGMP, plasma renin activity, and aldosterone were evaluated for 2 hours before and after the injection. Diuresis and natriuresis were measured every 30 minutes. The patients then started a low calorie/normal sodium diet (510 kcal/150 mmol/d) for 4 days, and then the ANP injection protocol was repeated. The low calorie diet induced a slight weight loss (from 90.6+/-1.1 to 87. 7+/-1.2 kg; P<0.01), which was accompanied by increase of cGMP excretion (from 146.0+/-10.1 to 154.5+/-9.5 nmol/24 h; P<0.05) together with a reduction of BP (P<0.01 versus basal levels). ANP injection after diet was followed by an increase of ANP levels similar to that observed before diet, but plasma cGMP, diuresis, and natriuresis increased significantly only after diet. Similarly, the decrease of BP after ANP administration was significantly higher after diet (change in mean arterial pressure, -6.4+/-0.7 versus -4. 0+/-0.6 mm Hg; P<0.05) as well as that of aldosterone (P<0.01). These data show that a low calorie diet enhances the humoral, renal, and hemodynamic effects of ANP in obese hypertensives and confirm the importance of caloric intake in modulating the biological activity of ANP, suggesting that the natriuretic peptide system can play a role in the acute changes of natriuresis and diuresis associated with caloric restriction.
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Abstract
To determine the accuracy of antenatal renal pelvis measurement as a screening tool for renal anomalies we reviewed the antenatal ultrasounds performed at our institution over 1 year. Renal pelvis dilation was found in 3.8% of pregnancies followed by our obstetrics department. In nine (17.6%) infants renal anomalies were detected after birth, the remaining cases remained unchanged or resolved over a 1-year postnatal follow-up. In our series dilations of less than 10 mm in utero resolved in the first months after birth while dilations greater than 15 mm were all associated with malformations of the genitourinary tract. The choice of the most appropriate follow-up for dilations between 10 and 15 mm remains an issue because these dilations can herald renal anomalies.
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A new pineoblastoma cell line, PER-480, with der(10)t(10;17), der(16)t(1;16), and enhanced MYC expression in the absence of gene amplification. CANCER GENETICS AND CYTOGENETICS 1998; 100:159-64. [PMID: 9428362 DOI: 10.1016/s0165-4608(97)00030-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Pineoblastoma is a rare, but highly malignant tumor of the central nervous system (CNS) in children and is classified as a central primitive neuroectodermal tumor (PNET). Despite notable recent advances in understanding the molecular genetic basis of malignancies, the pathogenesis of PNETs remains enigmatic. There is scant information on the cytogenetics of PNETs arising in the pineal gland and the only three reported cases did not show any common aberrations. Here we report the establishment and characterization of a new pineoblastoma cell line, PER-480. The biopsy material and the cell line were characterized using light and electron microscopy and immunohistochemical analyses. The cell line was examined for expression of cell surface markers using a panel of monoclonal antibodies and by cytogenetic analysis. MYC family genes were studied at the DNA, RNA, and protein level. Cell line PER-480 showed neuronal differentiation and the karyotype demonstrated two abnormalities, a der(10)t(10;17) and a der(16)t(1;16). An intriguing finding is that all three pineoblastoma cell lines established in our laboratory, PER-452, PER-453, and PER-480, showed enhanced expression but not amplification of a member of the MYC family of proto-oncogenes. Cell line PER-480 reported here will be useful for the further investigation of the molecular genetic basis of central PNETs.
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Accuracy of the umbilical arteries Doppler flow velocity waveforms in detecting adverse perinatal outcomes in a high-risk population. Acta Obstet Gynecol Scand 1996; 75:113-9. [PMID: 8604595 DOI: 10.3109/00016349609033301] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVE To define the accuracy of the umbilical artery Doppler flow velocity waveforms, according to different cut-off values, in predicting adverse perinatal outcomes among fetuses at high risk of hypoxic complications. SUBJECTS Two hundred and sixty-five pregnant women with diagnosis of small for gestational age fetus and/or pregnancy induced hypertension studied in four Italian ultrasound units. METHODS Prospective study. Serial Doppler ultrasound measurements of the umbilical artery were performed. Results were not available for clinical management. Cut-off curves, corresponding to different age-specific centiles of the pulsatility index distribution among pregnancies resulting in healthy newborns, regardless of birthweight, were computed by regression methods. Sensitivity, specificity, positive predictive value and negative predictive value of such cut-off curves, and of absent/reverse end-diastolic flow, in predicting different adverse outcomes were estimated. The adverse outcomes were: perinatal or neonatal death (OUTCOME 1). Death or Apgar<7 at 5' or need for admission to intensive care unit or other hypoxic related abnormalities (OUTCOME 2). Either OUTCOME 2 or birthweight<l0th centile (OUTCOME 3). Both OUTCOME 2 and birthweight<10th centile (OUTCOME 4). RESULTS The best accuracy was in predicting OUTCOMES 1 and 4. Positive predictive value increased strongly with higher cut-off curves while negative predictive value only decreased slightly. For absent/reverse end-diastolic flow, negative predictive value and positive predictive value were respectively 94% and 39% for death, and 81% and 72% respectively for OUTCOME 2. For the 95th centile curve the corresponding figures were 96%, 33% and 84%, 67%. The 60th centile curve had a 85% and 74% sensitivity value for death and OUTCOME 2 respectively, but the corresponding positive predictive values were 18% and 40% only. CONCLUSIONS The findings of an absent end diastolic flow or of pulsatility index values above the 95th centile curve strongly suggest it is time to deliver the fetus. The 60th centile curve is the most suitable to recognize fetuses at risk for abnormal outcome, but early delivery should be avoided because of its low positive predictive value.
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Are gender differences in QTc present at birth? MISNES Investigators. Multicenter Italian Study on Neonatal Electrocardiography and Sudden Infant Death Syndrome. Am J Cardiol 1995; 75:1277-8. [PMID: 7778558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The analysis of 9,725 electrocardiograms recorded on the fourth day of life has shown that gender-related differences in QTc observed in the adult population are not present at birth.
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Abstract
Characterised by distinctive clinicopathological features, the central neurocytoma (CN) is an uncommon and possibly under-recognised primary cerebral neuronal neoplasm. We present clinical and pathological details of seven patients with CN. Histological examination revealed a greater diversity of morphological appearances than is typically described in CN. No anaplastic features were identified. Cellular areas resembling both oligodendroglioma and ependymoma were present in all cases, but each tumour also contained stroma rich areas with hyalinised or aneurysmal vessels. Synaptophysin was expressed by all tumours and probably represents the immunohistochemical marker of choice for identifying CN. Distinguishing ultrastructural features included rounded cell bodies separated by numerous cell processes containing microtubules, pleomorphic neurosecretory granules and occasional synapses. Ki-67 immunostaining revealed a low cell proliferation index in each case. The distinction of CN from other pathological mimics can be reliably made using this multiparametric approach to diagnosis. The generally benign behaviour of CN is confirmed, though there was one patient death in the follow-up period of 10-122 months. Aggressive behaviour in this case was not associated with anaplastic histological features.
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Reply. Am J Obstet Gynecol 1994. [DOI: 10.1016/0002-9378(94)90429-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Monoclonal antibody Ber-EP4: its use in the differential diagnosis of malignant mesothelioma and carcinoma in cell blocks of malignant effusions and FNA specimens. Diagn Cytopathol 1994; 10:130-4. [PMID: 8187591 DOI: 10.1002/dc.2840100207] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Formol sublimate-fixed cell blocks derived from 129 malignant pleural (and some peritoneal) effusions, 8 benign effusions with reactive mesothelial cells, and 23 FNA specimens, were immunostained with monoclonal antibody Ber-EP4 to assess its ability to distinguish malignant mesothelioma (MM) from carcinoma. Only 2 of 44 (4%) well-characterized MM were Ber-EP4+, while none of 8 benign mesothelial proliferations reacted with the antibody. Fifty-seven percent of 23 pulmonary adenocarcinomas (AC) and 60% of 43 pulmonary carcinomas of all other histological types were Ber-EP4+. Of 40 metastatic AC originating from breast, gastrointestinal tract, ovary, endometrium, and kidney, 80% were Ber-EP4+. The predictive value of positive Ber-EP4 staining in distinguishing AC from MM was 96%. The predictive value of a negative Ber-EP4 in excluding MM was 70%, when the differential diagnosis was adenocarcinoma. These results suggest that Ber-EP4 is helpful in differentiating MM and AC if used together with other discriminating antibodies.
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Abstract
We have established two cell lines, PER-452 and PER-453, from an 8-month-old girl with an extensive pineoblastoma. Characterization of these lines revealed that the proto-oncogenes MYC and MYCN were not amplified, but both cell lines showed MYCN expression comparable to a cell line with 200-fold MYCN amplification. Both cell lines contained an i(17q). These results support the concept that pineoblastomas belong to a larger group of primitive neuroectodermal tumors of the central nervous system. These two cell lines provide a unique opportunity to investigate the molecular genetic mechanisms underlying these neoplasms further.
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Abstract
OBJECTIVE We assessed the reliability of transvaginal ultrasonography in the detection of uterine involvement in cases of gestational trophoblastic tumor, to establish a possible role of this procedure in the management of such neoplasia. STUDY DESIGN Transvaginal ultrasonography was performed in six women with gestational trophoblastic tumor at initial diagnosis, during the cytotoxic course when negative beta-human chorionic gonadotrophin levels were obtained, and within 3 to 6 months after the end of chemotherapy. RESULTS In all cases in which metastatic disease was absent intrauterine localization was easily detected by transvaginal ultrasonography; it appeared as endometrial hypoechoic areas and intramyometrial nodules. Favorable response to chemotherapy was determined by a negative serum beta-human chorionic gonadotropin determination accompanied by the finding of regression of nodules at transvaginal ultrasonography. CONCLUSION Our data support the introduction of transvaginal ultrasonography in the management of gestational trophoblastic tumor.
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Estimating the depth of myometrial involvement by endometrial carcinoma: efficacy of transvaginal sonography vs MR imaging. AJR Am J Roentgenol 1993; 160:533-8. [PMID: 8430547 DOI: 10.2214/ajr.160.3.8430547] [Citation(s) in RCA: 88] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
OBJECTIVE In this study we compare transvaginal sonography with MR imaging for use in detecting the depth of myometrial involvement by endometrial carcinoma. SUBJECTS AND METHODS Forty-two consecutive patients with stage I endometrial carcinoma had transvaginal sonography and MR imaging at 0.5 T. All the patients had a hysterectomy within 1-10 days after the imaging studies. The results of histologic examination of the surgical specimen were considered the gold standard of the study. We compared transvaginal sonography and MR imaging for use in assessing myometrial invasion by endometrial carcinoma by means of the staging classification of the International Federation of Gynecology and Obstetrics: stage Ia (tumor limited to endometrium), stage Ib (invasion of less than half the myometrium), stage Ic (invasion of more than half the myometrium). The overdiagnoses and the underdiagnoses for both techniques were calculated. We also evaluated the sensitivity and specificity of the two techniques for assessing the presence of myometrial invasion (stage Ib + stage Ic) and the presence of deep myometrial invasion (stage Ic). The diagnostic indexes evaluated and the differences between them were analyzed by using McNemar's test and 95% confidence intervals. The staging diagnoses based on MR imaging and sonographic findings were compared with staging diagnoses based on histologic examination, and a score was assigned to each diagnosis: these scores were then evaluated with Wilcoxon's signed rank test for paired data. RESULTS Histologic examination showed that six of the 42 patients had tumor confined to the endometrium (stage Ia), 14 had involvement of the inner half of the myometrium (stage Ib), and 22 had involvement of the outer half of the myometrium (stage Ic). The staging was concordant between the two imaging techniques in 32 cases (concordance, 76%). Among the 10 discordant cases, diagnosis was correct in six cases for MR and four cases for sonography. Overall staging based on sonography was correct with respect to histologic staging in 29 cases (69%; 95% confidence interval, 52-81%). Five tumors (12%) were underdiagnosed and eight (19%) were overdiagnosed. Staging based on MR findings was correct with respect to histologic staging in 31 cases (74%; 95% confidence interval, 58-85%). Five tumors (12%) were underdiagnosed, and six (14%) were overdiagnosed. CONCLUSION In our experience, there is no difference in the staging diagnoses of transvaginal sonography and MR imaging. Also, concordance with histologic staging diagnoses and sensitivity and specificity indexes did not show statistical differences between the two techniques, although these last results have to be considered with caution because of the low power of the statistical tests.
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Two malignant peripheral primitive neuroepithelial tumor cell lines established from consecutive samples of one patient: characterization and cytogenetic analysis. Genes Chromosomes Cancer 1992; 4:195-204. [PMID: 1382559 DOI: 10.1002/gcc.2870040302] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
A 6-year-old girl presented with a tumor of the right shoulder involving bone, adjacent soft tissue, and regional lymph nodes. The conventional histologic diagnosis was ambiguous, initially suggesting lymphoma. After relapse on lymphoma therapy, reevaluation with additional multiple diagnostic techniques performed on the biopsy tissue and on two cell lines derived from the biopsies established the diagnosis of a primitive neuroepithelial tumor of bone and soft tissue. This was strongly supported by 1) focal rosette formation by the tumor cells and positive immunostaining for neuron-specific enolase and synaptophysin, with absent staining for leukocyte common antigen; 2) at the ultrastructural level, formation of cellular processes containing microtubules, a paucity of neurosecretory granules, absence of synaptic junctions, formation of long "intermediate" junctions between cells, and, in culture, widespread development of rosettes; 3) marked surface positivity to W 6/32 and negativity to HSAN 1.2 antibodies; and 4) elevated expression of MYC and lack of overexpression of MYCN oncogenes. Numerical and structural abnormalities were present in the karyotype, but the expected t(11;22)(q24;q12) was not present in the tumor-involved marrow or in either of the established tumor cell lines, although there was an interstitial deletion of 11q involving breakpoints in q21 and q23.
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Transvaginal sonography for fetal measurement in early pregnancy. BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY 1992; 99:38-42. [PMID: 1547170 DOI: 10.1111/j.1471-0528.1992.tb14389.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVE To establish reference ranges for fetal size by gestation in the first trimester as indicated by cephalic, abdominal and limb measurements using transvaginal sonography. DESIGN A prospective descriptive study. SETTING Two antenatal clinics in Milan, Italy. SUBJECTS 270 women with normal singleton pregnancies at 42-108 days gestation. All had regular cycles and certain dates. INTERVENTIONS Vaginal ultrasound examination including inspection of fetal structures and lasting 5-15 min. MAIN OUTCOME MEASURES As many of the following fetal measurements as possible according to gestational age and ease: crown-rump length (CRL), biparietal diameter (BPD), head circumference (HC), abdominal circumference (AC), femur and foot lengths. RESULTS CRL was measured in 183 fetuses, BPD in 201, HC in 162, AC in 160, femur length in 133 and foot length in 62. The best description of the relation of CRL to gestational age was achieved by a quadratic function (y = -3.98 - 0.308x + 0.0117x2). Mean values thus derived were virtually identical to those obtained by Robinson & Fleming in 1975 with transabdominal static scanning. Fetal BPD, HC, AC and femur length correlated more closely with CRL than gestational age. Reference ranges (mean and 95% data intervals) were constructed for each biometrical measurement in relation to gestational age and CRL. The HC/AC and femur/foot length ratios did not show any significant variation with gestational age or CRL. CONCLUSIONS These data may be useful in the early detection of genetic disorders affecting the growth of fetal head, trunk and limbs. Genetic and/or environmental variables play an appreciable role in the modulation of early fetal growth.
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Abdominal pregnancy as a result of gamete intrafallopian transfer (GIFT) and subsequent treatment with methotrexate: case report. INTERNATIONAL JOURNAL OF FERTILITY 1990; 35:280-3. [PMID: 1980663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A patient underwent a minilaparotomy for gamete intrafallopian transfer (GIFT), and subsequently developed an abdominal pregnancy. The patient was treated with methotrexate, and a good resolution was obtained, with total disappearance of beta-hCG titers after 22 days from the beginning of therapy.
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Adult onset medulloblastoma cerebelli with leptomeningeal dissemination and coincidental primary hyperparathyroidism. AUSTRALASIAN RADIOLOGY 1989; 33:111-5. [PMID: 2712784 DOI: 10.1111/j.1440-1673.1989.tb03249.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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41
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[Reproducibility of the echographic biometry of the uterus]. ANNALI DI OSTETRICIA, GINECOLOGIA, MEDICINA PERINATALE 1988; 109:229-32. [PMID: 3069023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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42
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Prognostic significance of lymphatic permeation in Dukes' B colorectal cancer. THE AUSTRALIAN AND NEW ZEALAND JOURNAL OF SURGERY 1988; 58:39-42. [PMID: 3415584 DOI: 10.1111/j.1445-2197.1988.tb00965.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The survival of 78 patients with Dukes' B colorectal carcinoma was evaluated in relation to the presence (36 patients) or absence (42 patients) of tumour cells within lymphatic capillaries. Age-adjusted survival analysis did not reveal a statistically significant difference in survival between these two groups.
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[Clinical view and echography in the evaluation of expanding pelvic pathology: review of 312 clinical cases]. ANNALI DI OSTETRICIA, GINECOLOGIA, MEDICINA PERINATALE 1987; 108:53-8. [PMID: 3304087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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44
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[Comparison between the diagnostic value of amnioscopy and the non-stress test in prolonged pregnancy]. ANNALI DI OSTETRICIA, GINECOLOGIA, MEDICINA PERINATALE 1984; 105:319-24. [PMID: 6534244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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45
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Cord blood prolactin and thyroid hormone levels after antenatal administration of betamethasone or ambroxol for prevention of respiratory distress syndrome (RDS). BIOLOGICAL RESEARCH IN PREGNANCY AND PERINATOLOGY 1984; 5:124-9. [PMID: 6548163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Several studies showed that ambroxol is efficacious in enhancing fetal lung maturation, provided large doses are given. We investigated cord blood levels of PRL and thyroid hormones in 31 infants born after antenatal administration of betamethasone, in 31 infants born to mothers treated with ambroxol for prevention of RDS and in 27 infants whose mothers had not received any drug enhancing fetal lung maturity. The only significant difference (p less than 0.05) between the groups was noted in T3 mean levels that were higher in the ambroxol group than in the betamethasone group between the 33th to 36th week of gestation. Hormone levels did not appear significantly different in infants who developed RDS rather than in infants who did not.
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[Beta-adrenergic inhibition of adrenaline effects on some coagulative and fibrinolytic parameters]. GIORNALE DI GERONTOLOGIA 1971; 19:774-8. [PMID: 4400909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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47
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[Blood coagulation and fibrinolysis in aged patients and their changes following administration of adrenaline]. GIORNALE DI GERONTOLOGIA 1971; 19:793-9. [PMID: 5140487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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48
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[Changes in reactivity to cigarette smoke in aged subjects: on blood coagulation and fibrinolytic equilibrium and the peripheral circulation]. GIORNALE DI GERONTOLOGIA 1971; 19:779-84. [PMID: 5140485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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