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Kirson NY, Scott Andrews J, Desai U, King SB, Schonfeld S, Birnbaum HG, Ball DE, Kahle-Wrobleski K. Patient Characteristics and Outcomes Associated with Receiving an Earlier Versus Later Diagnosis of Probable Alzheimer's Disease. J Alzheimers Dis 2017; 61:295-307. [PMID: 29154268 PMCID: PMC5734126 DOI: 10.3233/jad-170078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Effectiveness of Alzheimer's disease (AD) treatments may depend critically on the timeliness of intervention. OBJECTIVE To compare characteristics and outcomes of patients diagnosed with probable AD (prAD) based on time elapsed from first onset of cognitive decline. METHODS Patients with ≥1 prAD diagnosis and ≥1 follow-up visit were selected from the National Alzheimer's Coordinating Center (NACC) Uniform Data Set (UDS; 9/2005-6/2015) and stratified based on the time between the perceived onset of cognitive decline at baseline and first prAD diagnosis (i.e., earlier versus later diagnosis). Characteristics at baseline and prAD diagnosis, clinically meaningful progression, and medication use following prAD diagnosis were compared. RESULTS Median time from perceived onset of cognitive decline to prAD diagnosis was 4.5 years (earlier diagnosis: ≤3.46; later diagnosis: >5.71). Earlier-diagnosed patients (n = 1,476) were younger at baseline (74.3 versus 76.3 years) and had better cognitive and functional scores than later-diagnosed patients (n = 1,474). At first prAD diagnosis, earlier-diagnosed patients had lower mean global Clinical Dementia Rating (CDR) score (0.8 versus 1.1), higher mean Mini-Mental State Examination (MMSE) (22.6 versus 20.0), and lower mean Functional Activities Questionnaire (11.6 versus 17.3). Earlier- and later-diagnosed patients experienced similar time to a decrease of ≥3 points in MMSE (median 23.2 versus 23.1 months, p = 0.83), but earlier-diagnosed patients had longer time to a CDR score of ≥2 points, and longer times to initiation of AD medication and antipsychotic agents (all p < 0.01). CONCLUSION Earlier prAD diagnosis in NACC data is associated with higher cognitive function and lower functional impairment at diagnosis.
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Affiliation(s)
| | | | - Urvi Desai
- Analysis Group, Inc., Boston, MA, USA,Correspondence to: Urvi Desai, Analysis Group, Inc., 111 Huntington Avenue, 14th floor, Boston, MA 02199, USA. Tel.: +1 617 425 8315; Fax: +1 617 425 8001; E-mail:
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2
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Krestinina LY, Davis FG, Schonfeld S, Preston DL, Degteva M, Epifanova S, Akleyev AV. Leukaemia incidence in the Techa River Cohort: 1953-2007. Br J Cancer 2013; 109:2886-93. [PMID: 24129230 PMCID: PMC3844904 DOI: 10.1038/bjc.2013.614] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Revised: 08/31/2013] [Accepted: 09/16/2013] [Indexed: 01/11/2023] Open
Abstract
Background: Little is known about leukaemia risk following chronic radiation exposures at low dose rates. The Techa River Cohort of individuals residing in riverside villages between 1950 and 1961 when releases from the Mayak plutonium production complex contaminated the river allows quantification of leukaemia risks associated with chronic low-dose-rate internal and external exposures. Methods: Excess relative risk models described the dose–response relationship between radiation dose on the basis of updated dose estimates and the incidence of haematological malignancies ascertained between 1953 and 2007 among 28 223 cohort members, adjusted for attained age, sex, and other factors. Results: Almost half of the 72 leukaemia cases (excluding chronic lymphocytic leukaemia (CLL)) were estimated to be associated with radiation exposure. These data are consistent with a linear dose response with no evidence of modification. The excess relative risk estimate was 0.22 per 100 mGy. There was no evidence of significant dose effect for CLL or other haematopoietic malignancies. Conclusion: These analyses demonstrate that radiation exposures, similar to those received by populations exposed as a consequence of nuclear accidents, are associated with long-term dose-related increases in leukaemia risks. Using updated dose estimates, the leukaemia risk per unit dose is about half of that based on previous dosimetry.
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Affiliation(s)
- L Y Krestinina
- Urals Research Center for Radiation Medicine, Epidemiology Laboratory, 68-a, Vorovsky Street, Chelyabinsk 454076, Russia
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Grzegorzewska AE, Niepolski L, Sikora J, Jagodzinski PP, Pajzderski D, Speer T, Rohrer L, Krankel N, Kuschnerus K, Stephen Z, Akhmedov A, Shi Y, Jung A, Wernicke G, Von Eckardstein A, Luscher TF, Fliser D, Landmesser U, Bahlmann F, Robinson B, Robinson B, Karaboyas A, Combe C, Gallagher M, De Sequera P, Yamamoto H, Morgenstern H, Schaubel D, Goodkin D, Levin N, Saran R, Port F, Goldstein B, Winkelmayer W, Assimes T, Drechsler C, Ritz E, Tomaschitz A, Pilz S, Schonfeld S, Blouin K, Bidlingmaier M, Hammer F, Krane V, Marz W, Allolio B, Fassnacht M, Wanner C, Nishimura M, Okamoto Y, Tokoro T, Nishida M, Sato N, Hashimoto T, Iwamoto N, Ono T. Cardiovascular complications in CKD 5d. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Dores G, Schonfeld S, Chen J, Hodgson D, Fossa S, Storm H, Hall P, Pukkala E, Gilbert E, Travis L. Long-term cause-specific mortality among 41,146 one-year survivors of Hodgkin lymphoma (HL). J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.6511] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- G. Dores
- Natl Cancer Inst, Bethesda, MD; Princess Margaret Hosp, Toronto, ON, Canada; Norwegian Radium Hosp, Oslo, Norway; Danish Cancer Society, Copenhagen, Denmark; Karolinska Institute, Stockholm, Sweden; Finnish Cancer Registry, Helsinki, Finland
| | - S. Schonfeld
- Natl Cancer Inst, Bethesda, MD; Princess Margaret Hosp, Toronto, ON, Canada; Norwegian Radium Hosp, Oslo, Norway; Danish Cancer Society, Copenhagen, Denmark; Karolinska Institute, Stockholm, Sweden; Finnish Cancer Registry, Helsinki, Finland
| | - J. Chen
- Natl Cancer Inst, Bethesda, MD; Princess Margaret Hosp, Toronto, ON, Canada; Norwegian Radium Hosp, Oslo, Norway; Danish Cancer Society, Copenhagen, Denmark; Karolinska Institute, Stockholm, Sweden; Finnish Cancer Registry, Helsinki, Finland
| | - D. Hodgson
- Natl Cancer Inst, Bethesda, MD; Princess Margaret Hosp, Toronto, ON, Canada; Norwegian Radium Hosp, Oslo, Norway; Danish Cancer Society, Copenhagen, Denmark; Karolinska Institute, Stockholm, Sweden; Finnish Cancer Registry, Helsinki, Finland
| | - S. Fossa
- Natl Cancer Inst, Bethesda, MD; Princess Margaret Hosp, Toronto, ON, Canada; Norwegian Radium Hosp, Oslo, Norway; Danish Cancer Society, Copenhagen, Denmark; Karolinska Institute, Stockholm, Sweden; Finnish Cancer Registry, Helsinki, Finland
| | - H. Storm
- Natl Cancer Inst, Bethesda, MD; Princess Margaret Hosp, Toronto, ON, Canada; Norwegian Radium Hosp, Oslo, Norway; Danish Cancer Society, Copenhagen, Denmark; Karolinska Institute, Stockholm, Sweden; Finnish Cancer Registry, Helsinki, Finland
| | - P. Hall
- Natl Cancer Inst, Bethesda, MD; Princess Margaret Hosp, Toronto, ON, Canada; Norwegian Radium Hosp, Oslo, Norway; Danish Cancer Society, Copenhagen, Denmark; Karolinska Institute, Stockholm, Sweden; Finnish Cancer Registry, Helsinki, Finland
| | - E. Pukkala
- Natl Cancer Inst, Bethesda, MD; Princess Margaret Hosp, Toronto, ON, Canada; Norwegian Radium Hosp, Oslo, Norway; Danish Cancer Society, Copenhagen, Denmark; Karolinska Institute, Stockholm, Sweden; Finnish Cancer Registry, Helsinki, Finland
| | - E. Gilbert
- Natl Cancer Inst, Bethesda, MD; Princess Margaret Hosp, Toronto, ON, Canada; Norwegian Radium Hosp, Oslo, Norway; Danish Cancer Society, Copenhagen, Denmark; Karolinska Institute, Stockholm, Sweden; Finnish Cancer Registry, Helsinki, Finland
| | - L. Travis
- Natl Cancer Inst, Bethesda, MD; Princess Margaret Hosp, Toronto, ON, Canada; Norwegian Radium Hosp, Oslo, Norway; Danish Cancer Society, Copenhagen, Denmark; Karolinska Institute, Stockholm, Sweden; Finnish Cancer Registry, Helsinki, Finland
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De Marco JK, Schonfeld S, Keller I, Bernstein MA. Contrast-enhanced carotid MR angiography with commercially available triggering mechanisms and elliptic centric phase encoding. AJR Am J Roentgenol 2001; 176:221-7. [PMID: 11133570 DOI: 10.2214/ajr.176.1.1760221] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The technical feasibility of contrast-enhanced MR angiography of the carotid arteries was evaluated with routinely available timing sequences and elliptic centric acquisition. The image quality of the contrast-enhanced MR angiography was compared with that of multiple overlapping thin-section acquisition MR angiography (MOTSA MR angiography). SUBJECTS AND METHODS Sixty-three patients were enrolled. A 2-mL test bolus and commercially available software were used to time the gadolinium bolus. High-resolution contrast-enhanced MR angiography was performed with elliptic centric acquisition. RESULTS The average time of bolus arrival was 17.3 sec (range, 12-25 sec). In 60 of the 63 patients, we had excellent or good visualization of the carotid bifurcation using contrast-enhanced MR angiography with little or no venous contamination. Two observers ranked delineation of stenosis and morphology of proximal internal carotid artery and overall diagnostic confidence statistically significantly higher for contrast-enhanced MR angiography compared with MOTSA: Ulceration, length of stenosis, and slow flow distal to a critical stenosis were better depicted with contrast-enhanced MR angiography than with MOTSA: Venetian blind artifact, saturation of slow or in-plane flow, and artifactual narrowing in carotid artery kinks plagued MOTSA but were not seen on contrast-enhanced MR angiography. MOTSA was graded superior to contrast-enhanced MR angiography in nine of 120 carotid bifurcations analyzed. CONCLUSION High-resolution carotid contrast-enhanced MR angiography is technically feasible. We found a 95% success rate using commercially available hardware and software. The image quality with carotid contrast-enhanced MR angiography has improved so that it is equal or superior to the longer MOTSA in most patients.
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Affiliation(s)
- J K De Marco
- Laurie Imaging Center, University Radiology Group, University of Medicine and Dentistry New Jersey, 141 French St., New Brunswick, NJ 08901, USA
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Leviton A, Paneth N, Reuss ML, Susser M, Allred EN, Dammann O, Kuban K, Van Marter LJ, Pagano M, Hegyi T, Hiatt M, Sanocka U, Shahrivar F, Abiri M, Disalvo D, Doubilet P, Kairam R, Kazam E, Kirpekar M, Rosenfeld D, Schonfeld S, Share J, Collins M, Genest D, Shen-Schwarz S. Maternal infection, fetal inflammatory response, and brain damage in very low birth weight infants. Developmental Epidemiology Network Investigators. Pediatr Res 1999; 46:566-75. [PMID: 10541320 DOI: 10.1203/00006450-199911000-00013] [Citation(s) in RCA: 289] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Echolucent images (EL) of cerebral white matter, seen on cranial ultrasonographic scans of very low birth weight newborns, predict motor and cognitive limitations. We tested the hypothesis that markers of maternal and feto-placental infection were associated with risks of both early (diagnosed at a median age of 7 d) and late (median age = 21 d) EL in a multi-center cohort of 1078 infants <1500 x g. Maternal infection was indicated by fever, leukocytosis, and receipt of antibiotic; fetoplacental inflammation was indicated by the presence of fetal vasculitis (i.e. of the placental chorionic plate or the umbilical cord). The effect of membrane inflammation was also assessed. All analyses were performed separately in infants born within 1 h of membrane rupture (n = 537), or after a longer interval (n = 541), to determine whether infection markers have different effects in infants who are unlikely to have experienced ascending amniotic sac infection as a consequence of membrane rupture. Placental membrane inflammation by itself was not associated with risk of EL at any time. The risks of both early and late EL were substantially increased in infants with fetal vasculitis, but the association with early EL was found only in infants born > or =1 after membrane rupture and who had membrane inflammation (adjusted OR not calculable), whereas the association of fetal vasculitis with late EL was seen only in infants born <1 h after membrane rupture (OR = 10.8; p = 0.05). Maternal receipt of antibiotic in the 24 h just before delivery was associated with late EL only if delivery occurred <1 h after membrane rupture (OR = 6.9; p = 0.01). Indicators of maternal infection and of a fetal inflammatory response are strongly and independently associated with EL, particularly late EL.
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Affiliation(s)
- A Leviton
- Children's Hospital, Boston, Massachusetts, USA
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7
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Kuban K, Sanocka U, Leviton A, Allred EN, Pagano M, Dammann O, Share J, Rosenfeld D, Abiri M, DiSalvo D, Doubilet P, Kairam R, Kazam E, Kirpekar M, Schonfeld S. White matter disorders of prematurity: association with intraventricular hemorrhage and ventriculomegaly. The Developmental Epidemiology Network. J Pediatr 1999; 134:539-46. [PMID: 10228286 DOI: 10.1016/s0022-3476(99)70237-4] [Citation(s) in RCA: 128] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVES Because intraventricular hemorrhage (IVH) often precedes the development of sonographically defined white matter damage (WMD) in very preterm infants, we sought to identify the IVH characteristics that predict WMD. HYPOTHESES We evaluated variations on the null hypothesis that infants with IVH are no more likely than infants without IVH to have WMD. These variations dealt with characteristics of the IVH (presence or absence of ventriculomegaly) or characteristics of the WMD (size, localization, and laterality). METHODS A total of 1605 infants weighing 500 to 1500 g at birth between January 1991 and December 1993 underwent standardized cranial ultrasound studies with 6 standard coronal and 5 sagittal views at postnatal days 1 to 3, 7 to 10, and at 3 to 8 weeks. RESULTS A total of 129 (8%) infants had WMD, either an echodensity alone (n = 59), an echolucency alone (n = 18), or both (n = 52). In analyses that controlled for gestational age, IVH was associated with a fivefold to ninefold increased risk of WMD regardless of size, laterality, or extent of lesions (P </=.0005). Compared with infants with neither IVH nor ventriculomegaly, infants with both were at 18- to 29-fold greater risk of WMD (P </=.0005). CONCLUSIONS In this study IVH and ventriculomegaly were powerful predictors of WMD occurrence, whether small or large, unilateral or bilateral, localized or diffuse.
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Affiliation(s)
- K Kuban
- Children's Hospital, Boston, Massachusetts, USA
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Mader R, Adawi M, Schonfeld S. Malabsorption in systemic lupus erythematosus. Clin Exp Rheumatol 1997; 15:659-61. [PMID: 9444423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To screen patients with SLE for malabsorption. METHODS Twenty-one patients fulfilling the American College of Rheumatology (ACR) criteria for SLE were enrolled in the study. Patients were screened for malabsorption by the D-Xylose test (DXT) and by microscopic examination of the stool for fat droplets. All patients underwent upper GI endoscopy with biopsy from the second portion of the duodenum. The specimen was examined for morphologic abnormalities and for the presence of IgG, IgM, IgA, and kappa and lambda light chains. Ten patients without SLE served as controls. RESULTS A history of abdominal pain and occasional diarrhea was elicited in 2/21 patients. These patients were found to have an abnormal DXT and excessive fecal fat excretion. In one of these patients, histologic examination revealed flattened and deformed villi with an inflammatory infiltrate. Two other patients showed isolated excessive fecal fat excretion with a normal microscopic appearance of the mucosa. In 20/21 patients the small bowel histology was normal. In all patients, immunoperoxidase staining revealed a normal quantity and distribution of the immunoglobulins and light chains within the intestinal mucosa. No correlation was demonstrated between CH50, C3, C4, anti-dsDNA levels and the malabsorption. CONCLUSION In this series of SLE patients, the prevalence of malabsorption was 9.5%, and was even higher if isolated fat malabsorption was considered. A search for malabsorption in patients with SLE, and in particular in those with abdominal complaints, is recommended. The pathogenesis is not yet clear and warrants further investigation.
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Affiliation(s)
- R Mader
- Department of Medicine A, Haemek Medical Center, Afula, Israel
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De Marco JK, Schonfeld S, Wesbey G. Can noninvasive studies replace conventional angiography in the preoperative evaluation of carotid stenosis? Neuroimaging Clin N Am 1996; 6:911-29. [PMID: 8824140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Most articles in 1995 demonstrated a sensitivity of 100% and specificities of 90% to 98% in detecting carotid bifurcation stenosis using a combination of MR angiography and ultrasonography, reserving conventional angiography for cases of disparate stenosis with the noninvasive studies. Multiple reviews concluded that noninvasive studies were less morbid than conventional angiography when taking into account the risks of conventional angiography and surgery as well as the morbidity associated with unnecessary surgery (false-positive noninvasive study) or withholding indicated surgery (false-negative noninvasive study). Thus, the current literature suggests that non-invasive studies have indeed reached a point where they can replace conventional angiography in the preoperative evaluation of carotid bifurcation stenosis. It is paramount that each imaging center review its own sensitivity and specificity in detecting surgically significant carotid stenosis with noninvasive studies. High sensitivity and specificity in diagnosing percent carotid stenosis with noninvasive studies can occur today with routine imaging equipment, but it takes a great deal of effort and dedication on the part of the imaging center.
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Affiliation(s)
- J K De Marco
- Department of Radiology, University of Medicine and Dentistry of New Jersey, New Brunswick, New Jersey 08901, USA
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10
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Abstract
PURPOSE To explore the potential for the information superhighway to provide radiologists with new opportunities. MATERIALS AND METHODS The Internet was used as the communication and distribution medium. MOSAIC, a graphical interface, provided access for clients, and a computer was used to serve text, images, sound, and cine onto the Internet. RESULTS The system can be used to send reports and images to referring physicians or consulting radiologists; to provide a large database that is constantly available; to provide an increasing collection of teaching files; and to distribute interactive, multimedia teaching tools that can be used on any computer system. The use of the MOSAIC interface facilitates interaction, which allows users with limited computer experience to access the system. CONCLUSION The Internet can dramatically expand the ways radiologists interact with their colleagues. These preliminary results indicate that there will be great challenges and opportunities for improving care and teaching in the future.
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Affiliation(s)
- R S Mezrich
- Laurie Imaging Center, Robert Wood Johnson Medical School, Radiology Group of New Brunswick, NJ 08901
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Mader R, Zu'bi A, Schonfeld S. Recurrent sterile arthritis following primary septic meningococcal arthritis. Clin Exp Rheumatol 1994; 12:531-3. [PMID: 7842535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Primary septic meningococcal arthritis (PSMA) is an unusual manifestation of meningococcal disease. With appropriate antibiotic therapy, complete recovery is the rule. A "postinfectious arthritis" in the previously infected joint may ensue, however. A patient who developed a recurrent sterile arthritis following PSMA, after a symptom-free interval, is described. Possible pathogenetic mechanisms and the clinical implications are discussed.
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Affiliation(s)
- R Mader
- Department of Medicine A, Central Emek Hospital, Afula, Israel
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Garty I, Mader R, Schonfeld S. Post pulmonary embolism pericarditis. A rare entity diagnosed by combined lung scanning and chest radiograph study. Clin Nucl Med 1994; 19:519-21. [PMID: 8062472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A patient is described in whom pericarditis appeared a few days after pulmonary embolism. Prompt improvement was noted following corticosteroid therapy. The possibility of pericarditis appearing following pulmonary embolism should be kept in mind, considering that both entities present with similar clinical manifestations but require different therapeutic approaches. The combination of ventilation and perfusion lung scanning and plain chest radiographs for the prompt and early diagnosis of post pulmonary embolism pericarditis, is illustrated.
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Affiliation(s)
- I Garty
- Department of Nuclear Medicine, Central Emek Hospital, Afula, Israel
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Keness J, Friedrich I, Banai M, Schonfeld S. Brucella melitensis growth on Loewenstein-Jensen egg medium from a case of Brucella meningitis. Diagn Microbiol Infect Dis 1993; 17:271-3. [PMID: 8112041 DOI: 10.1016/0732-8893(93)90035-6] [Citation(s) in RCA: 4] [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: 01/28/2023]
Abstract
Bacteriologic investigation of a cerebrospinal fluid (CSF) specimen for mycobacteria on Lowenstein-Jensen egg medium revealed the presence of Brucella organisms. This coincided with a significant antibody titer against Brucella spp. This is the first documented report of the ability of B. melitensis organisms to grow on Loewenstein-Jensen egg medium.
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Affiliation(s)
- J Keness
- Microbiology Laboratory, Central Emek Hospital, Afula, Israel
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Abstract
The diagnosis of brain death in the newborn infants is elusive and often difficult. The lack of cerebral blood flow has become an identified criterion for loss of cerebral function. The diagnosis can be obtained by the technique of digital subtraction angiography, which is presented in two case reports demonstrating the utility of this technique.
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Affiliation(s)
- A Albertini
- Department of Pediatrics, UMDNJ-Robert Wood Johnson Medical School, St. Peter's Medical Center, New Brunswick 08903
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Schonfeld S, Schulz S, Nyce J. Effects of inhibitors of topoisomerases-I and topoisomerases-ii on DNA methylation and DNA-synthesis in human colonic adenocarcinoma cells-invitro. Int J Oncol 1992; 1:807-814. [PMID: 21584621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
Exposure of human and animal cells to inhibitors of topoisomerase I or II has recently been shown to alter gene expression and induce differentiation in a number of experimental systems. We have previously shown that nalidixic acid and novobiocin, inhibitors of topoisomerase II, induce DNA hypomethylation. Since DNA hypomethylation is frequently associated with transcriptional activation, we wished to further explore the relationship between inhibition of DNA topoisomerases and enzymatic DNA methylation. When HT-29 human colonic adenocarcinoma cells were exposed to the specific topoisomerase II inhibitor teniposide (VM-26), a dose-dependent hypomethylation of DNA was observed during the window of drug treatment. Exposure to the topoisomerase I inhibitor camptothecin (CPT) produced a small but not statistically significant trend toward DNA hypomethylation. CPT-treated cells were found to have up to 19 fold increased levels of topoisomerase II protein, which may have compensated for decreased levels of non-drug-bound topoisomerase I. Both VM-26 and CPT were found to increase [H-3]thymidine incorporation into DNA when administered in low dose (0.5 muM VM-26; 8 nM CPT). Combination of VM-26 and CPT (0.5 muM and 8 nM, respectively) produced DNA hypomethyltion, a synergistic increase in [H-3]thymidine incorporation, and an increasing number of cells entering a higher DNA ploidy cycle. Since VM-26 interferes with the DNA strand breakage-reunion reaction by stabilizing a topoisomerase II-relaxed DNA complex, our results suggest that DNA existing in this form may be a poor substrate for DNA methylase. Topoisomerase inhibitor-induced DNA hypomethylation may offer a possible explanation for the induction of differentiation observed upon exposure to this family of drugs. Altered topoisomerase activity occurring during the process of tumor progression may also provide a link between the induction of polyploidy, DNA hypomethylation and aberrant gene expression frequently observed in tumor cells.
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Affiliation(s)
- S Schonfeld
- E CAROLINA UNIV,SCH MED,DEPT MOLEC PHARMACOL & THERAPEUT,GREENVILLE,NC 27858. E CAROLINA UNIV,SCH MED,DEPT PEDIAT,GREENVILLE,NC 27858
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Friedrich I, Schonfeld S, Keness Y. The ability of Brucella melitensis to grow on Loewenstein-Jensen egg medium: presentation of a case with Brucella meningitis. Isr J Med Sci 1992; 28:806-7. [PMID: 1468897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- I Friedrich
- Department of Medicine A, Central Emek Hospital, Afula, Israel
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Affiliation(s)
- D Peleg
- Department of Internal Medicine A, Central Emek Hospital, Afula, Israel
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Pinto-Martin J, Paneth N, Witomski T, Stein I, Schonfeld S, Rosenfeld D, Rose W, Kazam E, Kairam R, Katsikiotis V. The central New Jersey neonatal brain haemorrhage study: design of the study and reliability of ultrasound diagnosis. Paediatr Perinat Epidemiol 1992; 6:273-84. [PMID: 1584728 DOI: 10.1111/j.1365-3016.1992.tb00767.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Over a 34-month period, 1105 newborns weighing between 501 and 2000 g at birth were enrolled in a prospective study of the aetiology and consequences of neonatal brain haemorrhage. The three participating hospitals care for approximately 85% of births in the study weight range in Middlesex, Monmouth and Ocean counties, New Jersey. Cranial ultrasonographic imaging through the anterior fontanelle was carried out a mean age of 4.9 +/- 2.2 hours, 25.5 +/- 4.8 hours and 7.2 +/- 0.8 days to detect haemorrhage and other brain lesions. In 93.2% of study infants, scans were read by two independent expert readers (blind to the clinical status of the child) with submission of the scan to a third reader in cases of disagreement. Confirmation of both presence or absence and, when present, scan of first diagnosis of germinal matrix and/or intraventricular haemorrhage (GM/IVH) by two independent readers was achieved in 76.3% of study infants. The first two readers agreed as to presence or absence of GM/IVH in 82.4% of infants (Kappa = 0.56). Interobserver agreement was affected by the reported scan quality and by the number of scans available, but not by the hospital of origin, race or birthweight of the infant.
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Affiliation(s)
- J Pinto-Martin
- Department of Pediatrics, University of Pennsylvania School of Medicine, Philadelphia
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19
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Mader R, Schonfeld S. [Malabsorption in systemic lupus erythematosus]. Harefuah 1990; 118:572-3. [PMID: 2358216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A 25-year-old man, who was admitted for evaluation of arthralgia and fever of 2-weeks duration, complained of a 10 kg weight loss during the previous weeks. Systemic lupus erythematosus (SLE) was diagnosed on the basis of leukopenia, LE cells, antinuclear antibodies, antibodies to double-stranded DNA, and arthritis, Malabsorption was diagnosed because of the finding of hypoalbuminemia, fat droplets in the feces, a pathological D-xylose test, and an appropriate X-ray image. Approximately half the patients with SLE develop minor expressions of gastrointestinal tract involvement, such as nausea, vomiting, and diarrhea. Major manifestations, such as intestinal obstruction or perforation, ascites, peritonitis and pancreatitis have been reported with varying frequency. Despite the frequent association of SLE with gastrointestinal manifestations, malabsorption, as in this case, has rarely been reported.
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Affiliation(s)
- R Mader
- Dept. of Medicine A, Central Hospital of the Emek, Afula
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20
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Mader R, Schonfeld S. Hickman catheter for continuous glucose infusion in malignant insulinoma. J Clin Gastroenterol 1990; 12:243-4. [PMID: 2157750 DOI: 10.1097/00004836-199004000-00037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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21
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Mader R, Tanzman M, Schonfeld S. [Pseudomonas aeruginosa arthritis and discitis in systemic lupus erythematosus]. Harefuah 1990; 118:149-50. [PMID: 2341066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Patients with systemic lupus erythematosus (SLE) are prone to develop opportunistic infections. Nevertheless, arthritis due to Pseudomonas aeruginosa in SLE is very rare and seems to be related to corticosteroid therapy and previous penetrating injury. A 17-year-old girl with SLE and Pseudomonas arthritis and discitis which followed laparotomy is described. Arthritis is a common manifestation of SLE, but arthritis due to infection with Pseudomonas is very serious and the diagnosis should not be missed.
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Affiliation(s)
- R Mader
- Medicine A, Dept., Central Hospital of the Emek, Afula
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22
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Friedrich I, Mader R, Kaplan CB, Schonfeld S. [Chronic subdural hematoma simulating transient ischemic attacks]. Harefuah 1989; 116:413-4. [PMID: 2744648] [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: 01/02/2023]
Abstract
Chronic subdural hematoma presenting as transient ischemic attacks (TIA) is very rare. In a 74-year-old man in whom chronic subdural hematoma was responsible for recurrent attacks of local neurological deficiencies, the diagnosis was established by computerized tomographic (CT) scanning. Both TIA and chronic subdural hematoma usually occur in the elderly. Since the prognosis as well as the therapeutic approach are completely different in the 2 conditions, it is advisable to use imaging techniques, such as CT scanning, when there are recurrent TIA.
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23
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Raz R, Schonfeld S, Nassar F. Toxic megacolon in Salmonella typhimurium gastroenteritis. Isr J Med Sci 1988; 24:719-20. [PMID: 3066781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- R Raz
- Infectious Diseases Unit, Central Emek Hospital, Afula, Israel
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24
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Mader R, Schonfeld S. [Angioimmunologic lymphadenopathy evolving into malignant lymphoma and associated with Kaposi's sarcoma]. Minerva Med 1988; 79:991-3. [PMID: 3059236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Angioimmunoblastic lymphadenopathy with dysproteinemia is a recently described entity with severe clinical symptoms and characteristic histological findings in the lymph nodes with occasional malignant transformation. Kaposi's sarcoma is a neoplastic angiomatous growth of unknown origin. Alterations in the immune system have been reported in both diseases. The association of angioimmunoblastic lymphadenopathy with dysproteinemia and Kaposi's sarcoma in the same patient may suggest a common origin for both.
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Affiliation(s)
- R Mader
- Central Emek Hospital, Afula, Israele
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25
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Madar R, Schonfeld S. [Popliteal cyst and pseudothrombophlebitis]. Harefuah 1988; 114:618-9. [PMID: 3044943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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26
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Mader R, Schaffer I, Schonfeld S. Recurrent poststreptococcal cutaneous polyarteritis nodosa. Isr J Med Sci 1988; 24:269-70. [PMID: 2897956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- R Mader
- Department of Medicine A, Central Emek Hospital, Afula, Israel
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27
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Mader R, Cabot H, Schonfeld S. Popliteal cyst rupture in a marathon runner. Isr J Med Sci 1988; 24:267-8. [PMID: 3378883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- R Mader
- Department of Medicine, Central Emek Hospital, Afula, Israel
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28
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Pinto J, Paneth N, Kazam E, Kairam R, Wallenstein S, Rose W, Rosenfeld D, Schonfeld S, Stein I, Witomski T. Interobserver variability in neonatal cranial ultrasonography. Paediatr Perinat Epidemiol 1988; 2:43-58. [PMID: 3070483 DOI: 10.1111/j.1365-3016.1988.tb00179.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The reliability of cranial ultrasound diagnosis in the premature neonate was examined using data from an ongoing multicentre study of the epidemiology and long-term consequences of neonatal brain haemorrhage. First week ultrasound films (obtained at 4 hours, 24 hours and 7 days) from 60 study subjects were randomly selected for independent review by two groups of experienced interpreters, and results were recorded separately for observations (i.e. presence or absence of an abnormal echodense area on a film) and interpretations (i.e. presence or absence of haemorrhage or ventricular dilatation) in each hemisphere. Because of deaths in the first week of life, the total number of films examined was 138. Concordance on the presence or absence of an abnormal echodensity was examined for each individual film for three areas of interest: the germinal matrix, the ventricles and the parenchyma. Concordance on the presence or absence of haemorrhage or ventricular dilatation was examined only for the seventh-day film, or the final film prior to death. Finally, concordance was analysed with the diagnostic interpretations grouped into categories thought to differ prognostically for long-term outcome. In general, concordance was poorest for germinal matrix lesions and best for parenchymal lesions. Concordance was lower for observations made on each individual film than it was for interpretation of the final film in each case. Fifty-five of 60 cases (92%) were assigned to the same major prognostic category by both readers. Ultrasound review conferences were held periodically and there was evidence that concordance in ultrasound reading and interpretation improved during the course of the study.
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Affiliation(s)
- J Pinto
- Columbia University, New York, NY 10032
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29
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Mader R, Reiner S, Schonfeld S. Tropical pyomyositis: a nontropical disease. Isr J Med Sci 1987; 23:1154-5. [PMID: 3436799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- R Mader
- Department of Medicine A, Central Emek Hospital, Afula, Israel
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30
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Schonfeld S, Mader R, Barak S. [Transfusion malaria from an asymptomatic donor]. Harefuah 1987; 113:68. [PMID: 3692361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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31
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Shvartzman P, Oren B, Schonfeld S, Bar-Sella P. [Nephrotic syndrome associated with Gaucher's disease]. Harefuah 1987; 112:67-8. [PMID: 3596382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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32
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Mader R, Schonfeld S. [Acute renal failure associated with cimetidine]. Harefuah 1986; 111:373-4. [PMID: 3817629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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33
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Nussinson E, Rizescu I, Mader R, Schonfeld S. [Eosinophilic granuloma of the stomach associated with polyarthritis]. Minerva Med 1986; 77:187-90. [PMID: 3951729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Eosinophilic granulomas of the stomach, also known as inflammatory pseudotumours, are infrequently occurring lesions characterised histologically by local capillary and fibroblastic proliferation with infiltration of eosinophilic cells. This condition is benign and appears as a polypoid mass with or without ulceration. A case of association of a polyarthritis with a eosinophilic polypoid gastric granuloma is described. This was subsequently removed by endoscopic polypectomy.
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34
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Checchi L, Marini I, Schonfeld S. Synergistic effect of two local anesthetics reduces total anesthetic dose. Preliminary report. G Anest Stomatol 1986; 15:11-4. [PMID: 3460929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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35
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Lang N, Nassar F, Mader R, Schonfeld S. [Bronchial carcinoid. Description of 2 cases]. Minerva Med 1985; 76:1757-9. [PMID: 4047458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Bronchial carcinoid is a rare tumor appearing mostly in young patients, affecting males and females in equal proportion. It has a low grade malignancy. Carcinoid syndrome is infrequent in this condition and the clinical manifestations are those of bronchial obstruction. Two cases of bronchial carcinoid, diagnosed by bronchoscopy are described.
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36
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37
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Mader R, Schonfeld S. Diagnosing pica. Postgrad Med 1985; 77:46, 50. [PMID: 3991385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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38
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Whelan MA, Schonfeld S, Post JD, Svigals P, Meisler W, Weingarten K, Kricheff II. Computed tomography of nontuberculous spinal infection. J Comput Assist Tomogr 1985; 9:280-7. [PMID: 3882788 DOI: 10.1097/00004728-198503000-00010] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The CT findings in 16 patients with nontuberculous spinal infections were reviewed. The specificity of certain CT features as well as the usefulness of intravenous contrast medium administration are discussed. The associated clinical presentations and predisposing factors are outlined. Emphasis is placed on a combined clinical, radiographic approach in facilitating an early diagnosis.
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39
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Schonfeld S, Checchi L. [Immunological considerations in periodontal disease]. Mondo Odontostomatol 1984; 26:49-54. [PMID: 6334803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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40
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Bisharat B, Nassar F, Dubnov B, Schonfeld S. [Plasma exchange in Guillain-Barré syndrome]. Minerva Med 1984; 75:335-6. [PMID: 6700840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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41
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Abboud F, Nassar F, Schonfeld S. [Pulmonary edema following snake bite]. Harefuah 1982; 102:156-7. [PMID: 7095645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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42
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Bishara N, Schonfeld S. [Severe cardiac involvement due to scorpion sting]. Harefuah 1980; 98:221-2. [PMID: 7409636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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43
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Glass R, Schonfeld S, Rocco V. Meperidine surveillance in an outpatient department: the recognition of misuse and its control. J Community Health 1979; 5:28-35. [PMID: 500845 DOI: 10.1007/bf01321568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The identification of two patients who were misusing meperidine prescribed in a hospital prompted the establishment of a surveillance system to examine the possible extent of the problem of prescription narcotic abuse. All outpatient prescriptions for meperidine in a six-month period were reviewed and 17 high users were identified who were considered to be at greatest risk of misuse; they received 55% of all meperidine dispensed from the OPD pharmacy. These persons obtained their prescriptions primarily through the emergency room, they rarely saw the same physician twice, and 12 of them carried a diagnosis of sickle cell disease. Among these patients, four cases of definite abuse were identified. Interventions aimed at promoting continuity of care to the high users led to a 66% reduction in meperidine prescribed to this group in the emergency room and to a shift in their care to the clinics. Establishment of a registry for narcotic surveillance is a first toward recognition of outpatient drug abuse. Limiting prescribing privileges to the physician responsible for a patient's long-term care can further decrease this risk.
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44
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Resnitzky P, Schonfeld S, Dassa H. Effect of Graves' disease on idiopathic thrombocytopenic purpura. Arch Intern Med 1979; 139:483-4. [PMID: 86327] [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: 12/12/2022]
Abstract
The association between hyperthyroidism and thrombocytopenia is a known although infrequent clinical condition. Distinct mechanisms are probably active in each particular case, but the thyrotoxic state has been implicated as having a key effect on the fall in the number of platelets. We describe a patient with coexisting Graves' disease and idiopathic thrombocytopenic purpura who showed special refractoriness to treatment of the bleeding condition in the thyrotoxic state, but who promptly responded to treatment when the thrombocytopenia relapsed 2 1/2 years later, while he was euthyroid. Thus, in this case, a clear exacerbating effect of the thyrotoxic state on the thrombocytopenia was observed. We suggest evaluation of the thyroid condition in patients suffering from refractory thrombocytopenia.
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45
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Estrov Z, Kohn D, Sofer O, Schonfeld S. [Acute renal failure as a result of intravenous cholangiography (meglumine iodipamide)]. Harefuah 1978; 94:133-4. [PMID: 658793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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46
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Soffer O, Schonfeld S, Landau Z. [Clinical and laboratory follow-up of subacute thyroiditis]. Harefuah 1978; 94:109-10. [PMID: 658791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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47
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Kohn D, Schonfeld S. Broken thermometer and mercury absorption. JAMA 1977; 237:2472. [PMID: 576959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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48
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Hod I, Zimber A, Gidoni D, Schonfeld S. Solid intraperitoneal Landschütz tumour in mice: implications in cancer chemotherapy and immunology studies. Lab Anim 1975; 9:319-27. [PMID: 1207037 DOI: 10.1258/002367775780957142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Multiple intraperitoneal injections of various normal sera into BALB/c mice inoculated intraperitoneally with Landschütz ascites tumour cells abrogated the development of ascitic syndrome in almost all the animals. In a large proportion of the survivors solid intraperitoneal tumours developed, composed of characteristic ascites tumour cells engulfed and encapsulated in connective tissue. The effect of serum on the development of the solid tumour was diminished if the donor had been immunized against mouse IgG. Inoculated animals treated with serum hyperimmune against mouse IgG showed accelerated ascitic tumour growth. Cyclophosphamide or arabinosylcytosine strongly inhibited growth of solid tumours. Simultaneous administration of arabinosylcytosine and its antagonist cycloheximide did not interrupt tumour growth.
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49
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Kohn D, Fischel RE, Schonfeld S. [A hazard of oral temperature measurement]. Harefuah 1975; 88:321-2. [PMID: 1132840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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50
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Kohn D, Schonfeld S, Zikel G. [West Nile fever with meningeal involvement]. Harefuah 1973; 85:316-7. [PMID: 4771807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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