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Baldwin DA, Gigli CR, Kwok T, Connelly S, Helstrom JL, Ebersole B, Ross EA, Araten M, Glickman J, Glickman R, Horwitz EM. Clinical Validation of an Alternative Specimen Collection Kit for SARS-CoV-2 Testing at Fox Chase Cancer Center. J Biomol Tech 2022; 33:3fc1f5fe.2008dbc6. [PMID: 36910578 PMCID: PMC10001927 DOI: 10.7171/3fc1f5fe.2008dbc6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background Supply chain disruptions during the COVID-19 pandemic have affected the availability of components for specimen collection kits to detect SARS-CoV-2. Plastic injection molding offers a rapid and cheap method for mass production of swabs for upper respiratory tract sampling. Local production of virus transport medium increases flexibility to assemble sample collection kits if the medium provides appropriate stability for SARS-CoV-2 detection. Methods A locally produced virus transport medium and a novel injection molded plastic swab were validated for SARS-CoV-2 detection by reverse-transcription quantitative polymerase chain reaction. Both components were compared to standard counterparts using viral reference material and representative patient samples. Results Clinical testing showed no significant differences between molded and flocked swabs. Commercial and in-house virus transport media provided stable test results for over 40 days of specimen storage and showed no differences in test results using patient samples. Conclusions This collection kit provides new supply chain options for SARS-CoV-2 testing.
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Affiliation(s)
- Don A Baldwin
- Department of Pathology Fox Chase Cancer Center - Temple Health PhiladelphiaPennsylvania19111 USA
| | - Cheyenne R Gigli
- Department of Pathology Fox Chase Cancer Center - Temple Health PhiladelphiaPennsylvania19111 USA
| | - Tim Kwok
- Cell Culture Facility Fox Chase Cancer Center - Temple Health PhiladelphiaPennsylvania19111 USA
| | - Sharon Connelly
- Cell Culture Facility Fox Chase Cancer Center - Temple Health PhiladelphiaPennsylvania77030 USA
| | - James L Helstrom
- Division of Anesthesiology Fox Chase Cancer Center - Temple Health PhiladelphiaPennsylvania19111 USA
| | - Barbara Ebersole
- Speech Pathology and Audiology University of Texas M.D. Anderson Cancer Center HoustonTexas19440 USA
| | - Eric A Ross
- Biostatistics and Bioinformatics Facility Fox Chase Cancer Center - Temple Health PhiladelphiaPennsylvania19111 USA
| | | | | | | | - Eric M Horwitz
- Department of Radiation Oncology Fox Chase Cancer Center - Temple Health PhiladelphiaPennsylvania USA
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Teitelbaum I, Glickman J, Neu A, Neumann J, Rivara MB, Shen J, Wallace E, Watnick S, Mehrotra R. KDOQI US Commentary on the 2020 ISPD Practice Recommendations for Prescribing High-Quality Goal-Directed Peritoneal Dialysis. Am J Kidney Dis 2020; 77:157-171. [PMID: 33341315 DOI: 10.1053/j.ajkd.2020.09.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 12/29/2022]
Abstract
The recently published 2020 International Society for Peritoneal Dialysis (ISPD) practice recommendations regarding prescription of high-quality goal-directed peritoneal dialysis differ fundamentally from previous guidelines that focused on "adequacy" of dialysis. The new ISPD publication emphasizes the need for a person-centered approach with shared decision making between the individual performing peritoneal dialysis and the clinical care team while taking a broader view of the various issues faced by that individual. Cognizant of the lack of strong evidence for the recommendations made, they are labeled as "practice points" rather than being graded numerically. This commentary presents the views of a work group convened by the National Kidney Foundation's Kidney Disease Outcomes Quality Initiative (KDOQI) to assess these recommendations and assist clinical providers in the United States in interpreting and implementing them. This will require changes to the current clinical paradigm, including greater resource allocation to allow for enhanced services that provide a more holistic and person-centered assessment of the quality of dialysis delivered.
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Affiliation(s)
- Isaac Teitelbaum
- Division of Nephrology, Department of Medicine, University of Colorado, Aurora, CO
| | - Joel Glickman
- Division of Nephrology, Department of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Alicia Neu
- Division of Pediatric Nephrology, Department of Pediatrics, Johns Hopkins University, Baltimore, MD
| | | | - Matthew B Rivara
- Division of Nephrology, Department of Medicine, University of Washington, Seattle, WA
| | - Jenny Shen
- Division of Nephrology, Department of Medicine, Harbor-UCLA Medical Center, Torrance, CA
| | - Eric Wallace
- Division of Nephrology, Department of Medicine, University of Alabama, Birmingham, AL
| | - Suzanne Watnick
- Division of Nephrology, Department of Medicine, University of Washington, Seattle, WA; Northwest Kidney Centers, Seattle, WA
| | - Rajnish Mehrotra
- Division of Nephrology, Department of Medicine, University of Washington, Seattle, WA.
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Lockridge R, Weinhandl E, Kraus M, Schreiber M, Spry L, Tailor P, Carver M, Glickman J, Miller B. A Systematic Approach To Promoting Home Hemodialysis during End Stage Kidney Disease. Kidney360 2020; 1:993-1001. [PMID: 35369547 PMCID: PMC8815594 DOI: 10.34067/kid.0003132020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/07/2020] [Indexed: 06/14/2023]
Abstract
Home dialysis has garnered much attention since the advent of the Advancing American Kidney Health initiative. For many patients and nephrologists, home dialysis and peritoneal dialysis are synonymous. However, home hemodialysis (HHD) should not be forgotten. Since 2004, HHD has grown more rapidly than other dialytic modalities. The cardinal feature of HHD is customizability of treatment intensity, which can be titrated to address the vexing problems of volume and pressure loading during interdialytic gaps and ultrafiltration intensity during each hemodialysis session. Growing HHD utilization requires commitment to introducing patients to the modality throughout the course of ESKD. In this article, we describe a set of strategies for introducing HHD concepts and equipment. First, patients initiating dialysis may attend a transitional care unit, which offers an educational program about all dialytic modalities during 3-5 weeks of in-facility hemodialysis, possibly using HHD equipment. Second, prevalent patients on hemodialysis may participate in "trial-run" programs, which allow patients to experience increased treatment frequency and HHD equipment for several weeks, but without the overt commitment of initiating HHD training. In both models, perceived barriers to HHD-including fear of equipment, anxiety about self-cannulation, catheter dependence, and the absence of a care partner-can be addressed in a supportive setting. Third, patients on peritoneal dialysis who are nearing a transition to hemodialysis may be encouraged to consider a home-to-home transition (i.e., from peritoneal dialysis to HHD). Taken together, these strategies represent a systematic approach to growing HHD utilization in multiple phenotypes of patients on dialysis. With the feature of facilitating intensive hemodialysis, HHD can be a key not only to satiating demand for home dialysis, but also to improving the health of patients on dialysis.
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Affiliation(s)
- Robert Lockridge
- Lynchburg Nephrology Physicians, PLLC, Lynchburg, Virginia
- University of Virginia Medical Center, Charlottesville, Virginia
| | - Eric Weinhandl
- Chronic Disease Research Group, Hennepin Healthcare Research Institute, Minneapolis, Minnesota
- Department of Pharmaceutical Care and Health Systems, University of Minnesota, Minneapolis, Minnesota
| | - Michael Kraus
- Fresenius Medical Care North America, Waltham, Massachusetts
| | | | - Leslie Spry
- Lincoln Nephrology and Hypertension, PC, Lincoln, Nebraska
| | | | - Michelle Carver
- Fresenius Medical Care North America, Waltham, Massachusetts
| | - Joel Glickman
- Division of Renal Electrolyte and Hypertension, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Brent Miller
- Division of Nephrology, Department of Medicine, School of Medicine, Indiana University, Bloomington, Indiana
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4
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Glickman J, Dubin C, Dahabreh D, Auyeung K, Estrada Y, Singer G, Kimmel G, Pavel A, Krueger J, Guttman-Yassky E. 386 Biomarkers of alopecia areata in blood reveal systemic immune and cardiovascular abnormalities. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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5
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Glickman J, Dubin C, Han J, Dahabreh D, Garcet S, Krueger J, Pavel A, Guttman-Yassky E. 568 Comparing molecular cutaneous improvement in atopic dermatitis with various treatment modalities facilitates personalized approaches. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.578] [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: 11/15/2022]
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Glickman J, Pavel A, Estrada Y, Singer G, Kimmel G, Guttman-Yassky E. 668 An integrated model of alopecia areata biomarkers highlights TH1 and TH2 pathways. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jaramillo-Cardoso A, Shenoy-Bhangle A, Garces-Descovich A, King L, Hur H, Glickman J, Mortele K. MRI Staging of Endometriosis: How to Provide Value Based Reads! J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.071] [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: 12/01/2022]
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8
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Zhou L, Raja A, Malik K, Pavel A, Glickman J, Guttman-Yassky E. 1071 Age-specific changes in the atopic dermatitis molecular phenotype. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Chan T, Sanyal R, Pavel A, Glickman J, Zheng X, Cho Y, Tsai T, Peng X, Krueger J, Guttman-Yassky E. 058 Variable TH2/TH17-skewing places Chinese atopic dermatitis and psoriasis on an inflammatory spectrum. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Viscomi SG, Mortelé KJ, Cantisani V, Glickman J, Silverman SG. Fatal, complete splenic infarction and hepatic infection due to disseminated Trichosporon beigelii infection. ACTA ACUST UNITED AC 2004; 29:228-30. [PMID: 15290951 DOI: 10.1007/s00261-003-0099-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We report on a 56-year-old woman with acute lymphocytic leukemia who presented with right upper quadrant pain, fever, nausea, and vomiting. Laboratory studies confirmed fungemia with Trichosporum beigelii, and contrast-enhanced computed tomography of the abdomen demonstrated numerous low-attenuation liver lesions and a hypodense spleen with capsular enhancement suggestive of complete splenic infarction. Subsequent splenectomy confirmed that the spleen was completely infarcted and infiltrated with Trichosporum. The patient had a difficult postoperative course and died despite aggressive antifungal therapy.
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Affiliation(s)
- S G Viscomi
- Division of Abdominal Imaging and Intervention, Department of Radiology, Brigham & Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
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Mortele BP, Mortele KJ, Tuncali K, Banks RA, Glickman J, Silverman SG, Ros RR. Solid and papillary epithelial neoplasm of the pancreas: MR imaging findings. JBR-BTR 2002; 85:297-9. [PMID: 12553659] [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: 04/20/2023]
Abstract
We present the magnetic resonance imaging (MRI) findings in a young patient with histological proven solid and papillary epithelial neoplasm of the pancreas. Although the appearance of this tumor at MRI can be useful in making a correct preoperative diagnosis, only few cases describing its MRI features have been reported in the radiological literature.
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Affiliation(s)
- B P Mortele
- Department of Radiology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA
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13
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van den Brink GR, Hardwick JCH, Nielsen C, Xu C, ten Kate FJ, Glickman J, van Deventer SJH, Roberts DJ, Peppelenbosch MP. Sonic hedgehog expression correlates with fundic gland differentiation in the adult gastrointestinal tract. Gut 2002; 51:628-33. [PMID: 12377798 PMCID: PMC1773421 DOI: 10.1136/gut.51.5.628] [Citation(s) in RCA: 138] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND Sonic hedgehog (Shh) is an important endodermal morphogenetic signal during the development of the vertebrate gut. It controls gastrointestinal patterning in general, and gastric gland formation in particular. We have previously shown that Shh regulates gastric gland proliferation in the adult but detailed analysis of its expression along the adult gastrointestinal tract has never been undertaken. We therefore studied Shh expression along the normal human and rodent adult gastrointestinal tract as well as in intestinal metaplasia of the stomach, gastric and intestinal metaplasia of the oesophagus, and gastric heterotopia in Meckel's diverticulum. METHODS The studies were performed with in situ hybridisation and by immunohistochemistry using an antibody that recognises the Shh precursor form. RESULTS We found that in the normal gastrointestinal tract, high levels of Shh were expressed in the fundic glands of the stomach. Shh expression was also found in fundic gland metaplasia and heterotopia. However, Shh expression was lost in intestinal metaplasia of the stomach. CONCLUSION We found a strong correlation between Shh expression and fundic gland differentiation. Our current study therefore provides evidence that in addition to its role in gastric epithelial development, Shh plays a unique role in gastric epithelial differentiation in adults.
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Affiliation(s)
- G R van den Brink
- Department of Experimental Internal Medicine, Academic Medical Centre, Amsterdam, The Netherlands.
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14
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Neurath MF, Weigmann B, Finotto S, Glickman J, Nieuwenhuis E, Iijima H, Mizoguchi A, Mizoguchi E, Mudter J, Galle PR, Bhan A, Autschbach F, Sullivan BM, Szabo SJ, Glimcher LH, Blumberg RS. The transcription factor T-bet regulates mucosal T cell activation in experimental colitis and Crohn's disease. J Exp Med 2002; 195:1129-43. [PMID: 11994418 PMCID: PMC2193714 DOI: 10.1084/jem.20011956] [Citation(s) in RCA: 477] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2001] [Revised: 03/08/2002] [Accepted: 03/19/2002] [Indexed: 12/13/2022] Open
Abstract
The balance between pro and antiinflammatory cytokines secreted by T cells regulates both the initiation and perpetuation of inflammatory bowel diseases (IBD). In particular, the balance between interferon (IFN)-gamma/interleukin (IL)-4 and transforming growth factor (TGF)-beta activity controls chronic intestinal inflammation. However, the molecular pathways that evoke these responses are not well understood. Here, we describe a critical role for the transcription factor T-bet in controlling the mucosal cytokine balance and clinical disease. We studied the expression and function of T-bet in patients with IBD and in mucosal T cells in various T helper (Th)1- and Th2-mediated animal models of chronic intestinal inflammation by taking advantage of mice that lack T-bet and retroviral transduction techniques, respectively. Whereas retroviral transduction of T-bet in CD62L(+) CD4(+) T cells exacerbated colitis in reconstituted SCID mice, T-bet-deficient T cells failed to induce colitis in adoptive transfer experiments suggesting that overexpression of T-bet is essential and sufficient to promote Th1-mediated colitis in vivo. Furthermore, T-bet-deficient CD62L(-) CD4(+) T cells showed enhanced protective functions in Th1-mediated colitis and exhibited increased TGF-beta signaling suggesting that a T-bet driven pathway of T cell activation controls the intestinal balance between IFN-gamma/IL-4 and TGF-beta responses and the development of chronic intestinal inflammation in T cell-mediated colitis. Furthermore, TGF-beta was found to suppress T-bet expression suggesting a reciprocal relationship between TGF-beta and T-bet in mucosal T cells. In summary, our data suggest a key regulatory role of T-bet in the pathogenesis of T cell-mediated colitis. Specific targeting of this pathway may be a promising novel approach for the treatment of patients with Crohn's disease and other autoimmune diseases mediated by Th1 T lymphocytes.
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Affiliation(s)
- M F Neurath
- Laboratory of Immunology, I. Medical Clinic, University of Mainz, 55131 Mainz, Germany.
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15
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Cai YC, Banner B, Glickman J, Odze RD. Cytokeratin 7 and 20 and thyroid transcription factor 1 can help distinguish pulmonary from gastrointestinal carcinoid and pancreatic endocrine tumors. Hum Pathol 2001; 32:1087-93. [PMID: 11679943 DOI: 10.1053/hupa.2001.28245] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Expression of cytokeratin (CK) 7 and 20 is commonly used to help distinguish adenocarcinomas from different sites. Thyroid transcription factor 1 (TTF-1) is a 38-kd protein, located primarily in the nucleus of type 2 pneumocytes and clara cells. TTF-1 has been shown to be present in a variety of lung and thyroid tumors and in pulmonary small-cell carcinomas. Carcinoid tumors from the lung and the gastrointestinal (GI) tract are histologically similar and thus are difficult to differentiate from each other based on histologic criteria. Pancreatic endocrine tumors (PET) have a similar histologic appearance to these other tumors. The purpose of this study was to determine the efficacy of differentiating these 3 groups of tumors by their expression of CK7, CK20, and TTF-1. Routinely processed paraffin-embedded tissue sections from 62 carcinoid tumors (lung, 16; gastrointestinal [GI] tract, 46) and 12 PETs were immunohistochemically stained for CK7, CK20, and TTF-1. The degree of expression in each tumor was graded as 1+ (1% to 10% of cells positive), 2+ (11% to 25%), 3+ (26% to 50%), and 4+ (>50%). The data were compared between tumor types and between carcinoid tumors from the various locations in the GI tract (stomach, 8; small intestine, 19; large intestine, 17; appendix, 2). CK7 was expressed in 10 (63%) of 16 pulmonary carcinoid tumors and only 5 (11%) of 46 GI carcinoid tumors (P <.001). Pancreatic endocrine tumors showed CK7 positivity in 6 (50%) of 12 cases, which was similar to the findings in lung carcinoids and significantly higher than in GI carcinoids (P <.01). CK20 was expressed in 0 (0%) of 16 pulmonary carcinoid tumors, in contrast to 24% and 33% of GI carcinoid tumors (P <.05) and PETs (P <.05), respectively. TTF-1 expression was highly specific for pulmonary carcinoid tumors. This peptide was present in 11 (69%) of 16 pulmonary carcinoid tumors and in only 1 (2%) of 46 and 0 (0%) of 12 GI carcinoid tumors (P <.001) and PETs (P <.001), respectively. A CK7(+)/CK20(-)/TTF-1(+) immunopanel result was moderately sensitive (sensitivity, 50%), and highly specific (specificity, 100%), for a diagnosis of pulmonary carcinoid tumor. CK7, CK20, and TTF-1 did not differ significantly between carcinoid tumors located in different sites of the GI tract. However, a trend was observed toward a lower prevalence of CK20 positivity in gastric tumors (P =.06) than in GI carcinoid tumors from the small intestine, colon, or appendix. Expression of CK7 and CK20, and particularly TTF-1, may be useful in distinguishing pulmonary from GI carcinoid tumors and PETs, especially when evaluated as a panel of markers. TTF-1 is highly specific for pulmonary carcinoid tumors.
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Affiliation(s)
- Y C Cai
- Department of Pathology, Brigham and Women's Hospital, Boston, MA 02115, USA
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Affiliation(s)
- RD Odze
- Gastrointestinal Pathology Service, Department of Pathology, Brigham & Women's Hospital, Boston, Massachusetts
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18
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Zweig MH, Glickman J, Csako G. Analytical interference caused by incompletely clotted serum specimens. Clin Chem 1994; 40:2325-6. [PMID: 7988026] [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: 01/28/2023]
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19
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Weinstein LB, Morrison J, Perry A, Baghaei H, Bertozzi W, Boeglin WU, Finn JM, Glickman J, Hyde-Wright CE, Kalantar-Nayestanaki N, Lourie RW, Nelson JA, Penn S, Sapp WW, Sargent CP, Ulmer PE, Cottman BH, Ghedira L, Winhold EJ, Calarco JR, Wise J, Boberg P, Chang CC, Chant NS, Roos PG, Chang D, Aniol K, Epstein MB, Margaziotis DJ, Perdrisat C, Punjabi V, Whitney R. N* electroproduction and propagation in nuclei. Phys Rev C Nucl Phys 1993; 47:225-230. [PMID: 9968429 DOI: 10.1103/physrevc.47.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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20
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Lippincott-Schwartz J, Glickman J, Donaldson JG, Robbins J, Kreis TE, Seamon KB, Sheetz MP, Klausner RD. Forskolin inhibits and reverses the effects of brefeldin A on Golgi morphology by a cAMP-independent mechanism. J Cell Biol 1991; 112:567-77. [PMID: 1847146 PMCID: PMC2288843 DOI: 10.1083/jcb.112.4.567] [Citation(s) in RCA: 76] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Brefeldin A (BFA) causes rapid redistribution of Golgi proteins into the ER, leaving no definable Golgi apparatus, and blocks transport of proteins into post-Golgi compartments in the cell. In this study we follow the disassembly of the Golgi apparatus in BFA-treated, living cells labeled with NBD-ceramide and demonstrate that forskolin can both inhibit and reverse this process. Long, tubular processes labeled with NBD-ceramide were observed emerging from Golgi elements and extending out to the cell periphery in cells treated with BFA for 5 min. With longer incubations in BFA, the NBD label was dispersed in a fine reticular pattern characteristic of the ER. Treatment with forskolin inhibited these effects of BFA as well as BFA's earliest morphologic effect on the Golgi apparatus: the redistribution to the cytosol of a 110-kD Golgi peripheral membrane protein. In addition, forskolin could reverse BFA's block in protein secretion. Forskolin inhibition of BFA's effects was dose dependent and reversible. High concentrations of BFA could overcome forskolin's inhibitory effect, suggesting forskolin and BFA interact in a competitive fashion. Remarkably, in cells already exposed to BFA, forskolin could reverse BFA's effects causing the 110-kD Golgi peripheral membrane protein to reassociate with Golgi membrane and juxtanuclear Golgi complexes to reassemble. Neither membrane permeant cAMP analogues nor cAMP phosphodiesterase inhibitors could replicate or enhance forskolin's inhibition of BFA. 1,9-Dideoxyforskolin, which does not activate adenylyl cyclase, was equally as effective as forskolin in antagonizing BFA. A derivative of forskolin, 7-HPP-forskolin, that is less potent than forskolin at binding to adenylyl cyclase, was also equally effective as forskolin in antagonizing BFA. In contrast a similar derivative, 6-HPP-forskolin, that is equipotent with forskolin at binding to adenylyl cyclase, did not inhibit BFA's effects. These results suggest that forskolin acts as a competitive antagonist to BFA, using a cAMP-independent mechanism to prevent and reverse the morphologic effects induced by BFA.
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Affiliation(s)
- J Lippincott-Schwartz
- Cell Biology and Metabolism Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892
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Weinstein LB, Baghaei H, Bertozzi W, Finn JM, Glickman J, Hyde-Wright CE, Kalantar-Nayestanaki N, Lourie RW, Nelson JA, Sapp WW, Sargent CP, Ulmer PE, Cottman BH, Ghedira L, Winhold EJ, Calarco JR, Wise J, Boberg P, Chang CC, Zhang D, Aniol K, Epstein MB, Margaziotis DJ, Perdrisat C, Punjabi V. Quasielastic reaction mechanism studied using the reaction 12C(e,e'p). Phys Rev Lett 1990; 64:1646-1649. [PMID: 10041451 DOI: 10.1103/physrevlett.64.1646] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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22
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Csako G, Zweig MH, Ruddel M, Glickman J, Kestner J. Direct and indirect techniques for free thyroxin compared in patients with nonthyroidal illness. III. Analysis of interference variables by stepwise regression. Clin Chem 1990. [DOI: 10.1093/clinchem/36.4.645] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
We applied stepwise regression for multivariate analysis of data for free thyroxin (FT4) in serum and for other laboratory tests of thyroid function in patients with nonthyroidal illness. Using the maximum R2 improvement and backward elimination methods to test five variables [prealbumin, albumin, T4-binding globulin (TBG), free fatty acids (FFA), and FFA/albumin molar ratio], we found that the variables with the greatest predictive power clustered according to the methodology of FT4 measurement. Thus, we best predicted the FT4 results obtained by 16 techniques as follows: FT4 measured by one-step (analog) RIAs, with albumin; FT4 determined by two-step (sequential) RIAs, with FFA or FFA/albumin molar ratio; FT4 estimated by a binding-rate-based RIA or conceptually related FT4 indices [based on triiodothyronine (T3) uptake], with TBG; FT4 measured by equilibrium dialysis, with TBG and FFA/albumin molar ratio; and T4/TBG ratios, with either none or prealbumin and albumin. We could very highly (P less than 0.001) predict total T4 and T3 by considering TBG, and total T3 also by considering prealbumin and albumin, whereas reverse T3 was predictable with prealbumin only (negative relationship). We found comparatively weak associations between thyrotropin (TSH) and albumin or TBG. In clinical practice, abnormalities in key variables should call attention to possible effects of these variables on FT4 and other thyroid-test results and thus to the need for appropriate correction or alternative testing.
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Affiliation(s)
- G Csako
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892
| | - M H Zweig
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892
| | - M Ruddel
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892
| | - J Glickman
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892
| | - J Kestner
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892
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Csako G, Zweig MH, Ruddel M, Glickman J, Kestner J. Direct and indirect techniques for free thyroxin compared in patients with nonthyroidal illness. III. Analysis of interference variables by stepwise regression. Clin Chem 1990; 36:645-50. [PMID: 2136246] [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: 12/30/2022]
Abstract
We applied stepwise regression for multivariate analysis of data for free thyroxin (FT4) in serum and for other laboratory tests of thyroid function in patients with nonthyroidal illness. Using the maximum R2 improvement and backward elimination methods to test five variables [prealbumin, albumin, T4-binding globulin (TBG), free fatty acids (FFA), and FFA/albumin molar ratio], we found that the variables with the greatest predictive power clustered according to the methodology of FT4 measurement. Thus, we best predicted the FT4 results obtained by 16 techniques as follows: FT4 measured by one-step (analog) RIAs, with albumin; FT4 determined by two-step (sequential) RIAs, with FFA or FFA/albumin molar ratio; FT4 estimated by a binding-rate-based RIA or conceptually related FT4 indices [based on triiodothyronine (T3) uptake], with TBG; FT4 measured by equilibrium dialysis, with TBG and FFA/albumin molar ratio; and T4/TBG ratios, with either none or prealbumin and albumin. We could very highly (P less than 0.001) predict total T4 and T3 by considering TBG, and total T3 also by considering prealbumin and albumin, whereas reverse T3 was predictable with prealbumin only (negative relationship). We found comparatively weak associations between thyrotropin (TSH) and albumin or TBG. In clinical practice, abnormalities in key variables should call attention to possible effects of these variables on FT4 and other thyroid-test results and thus to the need for appropriate correction or alternative testing.
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Affiliation(s)
- G Csako
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892
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24
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Csako G, Zweig MH, Glickman J, Ruddel M, Kestner J. Direct and indirect techniques for free thyroxin compared in patients with nonthyroidal illness. II. Effect of prealbumin, albumin, and thyroxin-binding globulin. Clin Chem 1989. [DOI: 10.1093/clinchem/35.8.1655] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
We studied the correlation of thyroxin (T4)-binding proteins with the apparent free T4 (FT4) in 101 patients with nonthyroidal illness (NTI). Most patients (95%) were seriously ill at the time of blood collection. Concentrations of T4-binding prealbumin (transthyretin), albumin, and T4-binding globulin (TBG) often were low in the sera of these patients. Albumin was the most frequently subnormal, TBG the least. FT4 in serum was determined by five methods represented in 16 different assays. With few exceptions, analog (one-step) FT4 RIAs--both the binding-rate-based RIA and the related FT4 indices (calculated from triiodothyronine-macroaggregated albumin uptake and total T4)--and T4/TBG ratios correlated positively and usually highly significantly (P less than 0.01) with concentrations of prealbumin, albumin, and TBG. Equilibrium dialysis values for FT4 did not correlate with prealbumin concentrations but showed a weakly (P less than 0.03) positive association with albumin and a highly significant (P less than 0.002) positive correlation with TBG. Of the three two-step FT4 RIAs tested, the only statistically significant but weakly (P less than 0.02) positive correlation with T4-binding proteins was between Spiria FT4 and TBG. Thus, in these NTI patients, FT4 estimates vary with methodology and, to a lesser extent, with the particular assay used. The results from two-step FT4 RIAs are least associated with binding protein concentrations.
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Affiliation(s)
- G Csako
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892
| | - M H Zweig
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892
| | - J Glickman
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892
| | - M Ruddel
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892
| | - J Kestner
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892
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Csako G, Zweig MH, Glickman J, Ruddel M, Kestner J. Direct and indirect techniques for free thyroxin compared in patients with nonthyroidal illness. II. Effect of prealbumin, albumin, and thyroxin-binding globulin. Clin Chem 1989; 35:1655-62. [PMID: 2521137] [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: 01/01/2023]
Abstract
We studied the correlation of thyroxin (T4)-binding proteins with the apparent free T4 (FT4) in 101 patients with nonthyroidal illness (NTI). Most patients (95%) were seriously ill at the time of blood collection. Concentrations of T4-binding prealbumin (transthyretin), albumin, and T4-binding globulin (TBG) often were low in the sera of these patients. Albumin was the most frequently subnormal, TBG the least. FT4 in serum was determined by five methods represented in 16 different assays. With few exceptions, analog (one-step) FT4 RIAs--both the binding-rate-based RIA and the related FT4 indices (calculated from triiodothyronine-macroaggregated albumin uptake and total T4)--and T4/TBG ratios correlated positively and usually highly significantly (P less than 0.01) with concentrations of prealbumin, albumin, and TBG. Equilibrium dialysis values for FT4 did not correlate with prealbumin concentrations but showed a weakly (P less than 0.03) positive association with albumin and a highly significant (P less than 0.002) positive correlation with TBG. Of the three two-step FT4 RIAs tested, the only statistically significant but weakly (P less than 0.02) positive correlation with T4-binding proteins was between Spiria FT4 and TBG. Thus, in these NTI patients, FT4 estimates vary with methodology and, to a lesser extent, with the particular assay used. The results from two-step FT4 RIAs are least associated with binding protein concentrations.
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Affiliation(s)
- G Csako
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892
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26
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Csako G, Zweig MH, Glickman J, Kestner J, Ruddel M. Direct and indirect techniques for free thyroxin compared in patients with nonthyroidal illness. I. Effect of free fatty acids. Clin Chem 1989; 35:102-9. [PMID: 2491973] [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: 01/01/2023]
Abstract
We examined the effect of endogenous free fatty acids (FFA) on the measurement of free thyroxin (FT4) by five different methodologies represented in 16 different assays in a large number of patients with nonthyroidal illness (NTI). Some, but not all, one-step (analog) FT4 RIAs negatively correlated with FFA concentration. All two-step FT4 RIAs, equilibrium dialysis FT4, and the dialyzable (free) fraction of T4 positively correlated. In contrast, a binding-rate-based FT4 RIA, FT4 indices based on T3 macroaggregated albumin uptake, and T4/TBG ratios did not correlate. We also analyzed the FT4-FFA relationship with a second, more sensitive approach by correlating test results with FFA/albumin molar ratio as an estimate of the "excess" (nonalbumin bound) FFA. We found that all FT4 RIAs, equilibrium dialysis FT4, FT4 indices based on T3 uptake, the dialyzable fraction of labeled T4 in equilibrium dialysis, the fraction of labeled T4 bound to solid phase antibody in the binding-rate-based RIA, and T3 uptake correlated with the FFA/albumin molar ratio. This FFA dependency was comparable among all the various techniques and was relatively small. Thus, increases or decreases in FT4 results due to varying FFA (and albumin) concentrations are highly likely with most currently available methods (only the T4/TBG ratio did not reveal FFA-dependency), but the magnitude of changes varies with the "excess" FFA.
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Affiliation(s)
- G Csako
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, Bethesda, MD 20892
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27
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Csako G, Zweig MH, Glickman J, Kestner J, Ruddel M. Direct and indirect techniques for free thyroxin compared in patients with nonthyroidal illness. I. Effect of free fatty acids. Clin Chem 1989. [DOI: 10.1093/clinchem/35.1.102] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
We examined the effect of endogenous free fatty acids (FFA) on the measurement of free thyroxin (FT4) by five different methodologies represented in 16 different assays in a large number of patients with nonthyroidal illness (NTI). Some, but not all, one-step (analog) FT4 RIAs negatively correlated with FFA concentration. All two-step FT4 RIAs, equilibrium dialysis FT4, and the dialyzable (free) fraction of T4 positively correlated. In contrast, a binding-rate-based FT4 RIA, FT4 indices based on T3 macroaggregated albumin uptake, and T4/TBG ratios did not correlate. We also analyzed the FT4-FFA relationship with a second, more sensitive approach by correlating test results with FFA/albumin molar ratio as an estimate of the "excess" (nonalbumin bound) FFA. We found that all FT4 RIAs, equilibrium dialysis FT4, FT4 indices based on T3 uptake, the dialyzable fraction of labeled T4 in equilibrium dialysis, the fraction of labeled T4 bound to solid phase antibody in the binding-rate-based RIA, and T3 uptake correlated with the FFA/albumin molar ratio. This FFA dependency was comparable among all the various techniques and was relatively small. Thus, increases or decreases in FT4 results due to varying FFA (and albumin) concentrations are highly likely with most currently available methods (only the T4/TBG ratio did not reveal FFA-dependency), but the magnitude of changes varies with the "excess" FFA.
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Affiliation(s)
- G Csako
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, Bethesda, MD 20892
| | - M H Zweig
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, Bethesda, MD 20892
| | - J Glickman
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, Bethesda, MD 20892
| | - J Kestner
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, Bethesda, MD 20892
| | - M Ruddel
- Clinical Pathology Department, Warren G. Magnuson Clinical Center, Bethesda, MD 20892
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Faulk EH, Glickman J, Middleton M. Low-cost group psychotherapy. An alternative to the traditional mental health delivery system. Bull Menninger Clin 1988; 52:321-31. [PMID: 3401628] [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: 01/05/2023]
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Glickman J. The use of bolus normal saline instillations in artificial airways: is it useful or necessary? Heart Lung 1986; 15:320. [PMID: 3634772] [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: 01/06/2023]
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Glickman J, Field T. Computergraphics: a challenge for biocommunicators. J Biocommun 1984; 11:49-50. [PMID: 6736007] [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: 01/21/2023]
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Abstract
Rat liver Golgi vesicles were isolated by differential and density gradient centrifugation. A fraction enriched in galactosyl transferase and depleted in plasma membrane, mitochondrial, endoplasmic reticulum, and lysosomal markers was found to contain an ATP-dependent H+ pump. This proton pump was not inhibited by oligomycin but was sensitive to N-ethyl maleimide, which distinguishes it from the F0-F1 ATPase of mitochondria. GTP did not induce transport, unlike the lysosomal H+ pump. The pump was not dependent on the presence of potassium nor was it inhibited by vanadate, two of the characteristics of the gastric H+ ATPase. Addition of ATP generated a membrane potential that drove chloride uptake into the vesicles, suggesting that Golgi membranes contain a chloride conductance in parallel to an electrogenic proton pump. These results demonstrate that Golgi vesicles can form a pH difference and a membrane potential through the action of an electrogenic proton translocating ATPase.
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Glickman J, Field T. Design & production of poster sessions: a management system. J Biocommun 1983; 10:21-7. [PMID: 6654883] [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: 01/21/2023]
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