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Pretransplant Desensitization of Donor-Specific Anti-HLA Antibodies with Plasmapheresis and Immunoglobulin Produces Equivalent Outcomes to Patients with No Donor Specific Antibodies in Haploidentical Hematopoietic Cell Transplant. RESEARCH SQUARE 2024:rs.3.rs-3832106. [PMID: 38260672 PMCID: PMC10802720 DOI: 10.21203/rs.3.rs-3832106/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
In patients requiring haploidentical hematopoietic cell transplant (haplo-HCT), the presence of donor specific anti-HLA antibodies (DSAs) is associated with high rates of primary graft failure and poor overall survival (OS). There is limited data regarding the effect of desensitization. Adult patients undergoing haplo-HCT at Washington University School of Medicine from 2009-2021 were identified. Patients were divided into three cohorts: no DSA, untreated DSA or treated DSA. DSA testing was performed. Desensitization therapy using plasmapheresis and IVIg (immunoglobulin) was performed. We retrospectively identified 304 patients for study inclusion. 14 of 30 patients with DSAs underwent desensitization. By day +2, 57% of patients cleared all DSAs. OS was expectedly worse in patients with untreated DSAs. There were similar results between treated DSA and patients without DSA (OS median: control: 352 days vs. treated: 1331 days vs. untreated: 137 days, p = 0.02). RFS was also significantly different between the groups however with similar RFS in treated DSA and control groups (RFS median: control: 248 vs. treated: 322 v. untreated: 119, p = 0.03). Desensitization before haplo-HCT produces similar outcomes to patients without DSAs. While the optimal desensitization protocol has not been established, all patients received a backbone of plasmapheresis and immunoglobulin.
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Donor chimerism and immune reconstitution following haploidentical transplantation in sickle cell disease. Front Immunol 2022; 13:1055497. [PMID: 36569951 PMCID: PMC9780682 DOI: 10.3389/fimmu.2022.1055497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 11/18/2022] [Indexed: 12/13/2022] Open
Abstract
Introduction We previously reported the initial results of a phase II multicenter transplant trial using haploidentical parental donors for children and aolescents with high-risk sickle cell disease achieving excellent survival with exceptionally low rates of graft-versus-host disease and resolution of sickle cell disease symptoms. To investigate human leukocyte antigen (HLA) sensitization, graft characteristics, donor chimerism, and immune reconstitution in these recipients. Methods CD34 cells were enriched using the CliniMACS® system with a target dose of 10 x 106 CD34+ cells/kg with a peripheral blood mononuclear cell (PBMNC) addback dose of 2x105 CD3/kg in the final product. Pre-transplant HLA antibodies were characterized. Donor chimerism was monitored 1-24 months post-transplant. Comprehensive assessment of immune reconstitution included lymphocyte subsets, plasma cytokines, complement levels, anti-viral T-cell responses, activation markers, and cytokine production. Infections were monitored. Results HLA antibodies were detected in 7 of 11 (64%) evaluable patients but rarely were against donor antigens. Myeloid engraftment was rapid (100%) at a median of 9 days. At 30 days, donor chimerism was 93-99% and natural killer cell levels were restored. By 60 days, CD19 B cells were normal. CD8 and CD4 T-cells levels were normal by 279 and 365 days, respectively. Activated CD4 and CD8 T-cells were elevated at 100-365 days post-transplant while naïve cells remained below baseline. Tregs were elevated at 100-270 days post-transplant, returning to baseline levels at one year. At one year, C3 and C4 levels were above baseline and CH50 levels were near baseline. At one year, cytokine levels were not significantly different from baseline. Discussion These results suggest that haploidentical transplantation with CD34-enriched cells and peripheral blood mononuclear cell addback results in rapid engraftment, sustained donor chimerism and broad-based immune reconstitution.
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Stable to Improved Long Term Cardiac and Pulmonary Function in Children, Adolescents, and Young Adults with High Risk Sickle Cell Disease Following Myeloimmunoablative Conditioning and Familial Haploidentical Stem Cell Transplantation. Transplant Cell Ther 2021. [DOI: 10.1016/s2666-6367(21)00405-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Familial Haploidentical Stem Cell Transplant in Children and Adolescents With High-Risk Sickle Cell Disease: A Phase 2 Clinical Trial. JAMA Pediatr 2020; 174:195-197. [PMID: 31816036 PMCID: PMC6902105 DOI: 10.1001/jamapediatrics.2019.4715] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
This phase 2 clinical trial in patients with high-risk sickle cell disease assesses the feasibility, safety, and 1-year event-free survival after myeloimmunoablative conditioning and familial haploidentical stem cell transplant.
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Assessment of Safety and Efficacy of PBSC Mobilization with G-CSF and CD34+ Enrichment and Pbmnc (CD3+) Addback in Familial Haploidentical (FHI) Adult Donors with Sickle Cell Disease Trait (SCDT) Prior to Allogeneic HSCT of High-Risk SCD Patients. Biol Blood Marrow Transplant 2019. [DOI: 10.1016/j.bbmt.2018.12.637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Assessment of Safety and Efficacy of PBSC Mobilization with G-CSF and CD34+ Enrichment and Pbmnc (CD3+) Addback in Familial Haploidentical (FHI) Adult Donors with Sickle Cell Disease Trait (SCDT) Prior to Allogeneic HSCT of High-Risk SCD Patients. Biol Blood Marrow Transplant 2018. [DOI: 10.1016/j.bbmt.2017.12.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Familial Haploidentical (FHI) T-Cell Depleted (TCD) with T-Cell Addback Stem Cell Transplantation for Patients with High-Risk Sickle Cell Disease (SCD) (IND 14359). Biol Blood Marrow Transplant 2017. [DOI: 10.1016/j.bbmt.2016.12.480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Neurocognitive & Neurological Outcomes in Children, Adolescents & Young Adults with High-Risk SCD Who Have Undergone Familial Haploidentical (FHI) Allosct Utilizing CD34 Enrichment and T Cell Addback Following Myeloimmunoablative Conditioning (MAC). Biol Blood Marrow Transplant 2017. [DOI: 10.1016/j.bbmt.2016.12.392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Extracorporeal photopheresis practice patterns: An international survey by the ASFA ECP subcommittee. J Clin Apher 2016; 32:215-223. [DOI: 10.1002/jca.21486] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 06/30/2016] [Accepted: 07/01/2016] [Indexed: 01/02/2023]
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AABB Committee Report: reducing transfusion-transmitted cytomegalovirus infections. Transfusion 2016; 56:1581-7. [DOI: 10.1111/trf.13503] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 11/30/2015] [Accepted: 11/30/2015] [Indexed: 12/16/2022]
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Familial Haploidentical (FHI) Allogeneic Stem Cell Transplantation Utilizing CD34 Enrichment and T Cell Addback in Children, Adolescents & Adults with High-Risk Sickle Cell Disease. Rapid Engraftment, Low Incidence of Agvhd, and Sustained Donor Chimerism. Biol Blood Marrow Transplant 2016. [DOI: 10.1016/j.bbmt.2015.11.876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Collection and Processing Outcomes of G-CSF Mobilized Peripheral Blood Stem Cells (PBSC) Collected from Parental Haploidentical Stem Cell Sickle Cell Trait Donors of Patients Undergoing CD34 Enriched Transplantation for High-Risk Sickle Cell Disease (IND. Biol Blood Marrow Transplant 2016. [DOI: 10.1016/j.bbmt.2015.11.899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Assessment of Safety and Efficacy of Peripheral Blood Stem Cell (PBSC) Mobilization with G-CSF in Haploidentical Maternal Donors with Sickle Cell Trait Prior to Haploidentical Stem Cell Transplantation in Their Children with High-Risk Sickle Cell Disease. Biol Blood Marrow Transplant 2015. [DOI: 10.1016/j.bbmt.2014.11.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Treatment of High-Risk Sickle Cell Disease (SCD) with Familial Haploidentical (FHI) T-Cell Depleted (TCD) Stem Cell Transplantation with T-Cell Addback (IND 14359). Biol Blood Marrow Transplant 2015. [DOI: 10.1016/j.bbmt.2014.11.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Validity and Reliability of a Questionnaire Assessing Current Cooking Skills and Food Preparation Involvement in College-Age Adults. J Acad Nutr Diet 2014. [DOI: 10.1016/j.jand.2014.06.215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Efficacy of extracorporeal photopheresis in clearance of antibodies to donor-specific and lung-specific antigens in lung transplant recipients. J Heart Lung Transplant 2014; 33:950-6. [PMID: 24906794 DOI: 10.1016/j.healun.2014.04.020] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 04/30/2014] [Accepted: 04/30/2014] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Extracorporeal photopheresis (ECP) has been used to treat chronic rejection after lung transplantation (LTx). We investigated the effect of ECP on several immune parameters that have been associated with poor lung function, including donor-specific antibodies (DSA) to human leukocyte antigen (HLA), antibodies against the lung-associated self-antigens (SAg), Kα1-tubulin (Kα1T), collagen I and V, and circulating levels of pro-inflammatory and anti-inflammatory cytokines. METHODS Sera were collected from post-LTx patients diagnosed with bronchiolitis obliterans before and 6 months after initiation of ECP. DSA and cytokine levels were measured by Luminex (Invitrogen, Carlsbad, CA). Changes in lung function over the 6 months preceding and after the initiation of ECP were measured by retrospective analysis of spirometry performed at routine clinic visits. RESULTS ECP was associated with a significant decline in DSA levels as well as antibodies to lung-associated SAg. ECP also reduced circulating levels of pro-inflammatory cytokines and increased levels of anti-inflammatory cytokines. These immunologic changes were associated with a significant 63% reduction in the rate of decline in forced expiratory volume in 1 second over a 1-year period. Though statistically insignificant, a higher rate of clearance of antibodies to lung-associated SAg was strongly associated with better response to ECP. CONCLUSIONS ECP is associated with a reduction in the levels of circulating DSA, antibodies to lung-associated SAg (Kα1T, collagen I, and collagen V), and circulating levels of several pro-inflammatory cytokines. We propose that these changes contribute to the beneficial effect of ECP in reducing the decline in lung function.
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Familial Haploidentical (FHI) T-Cell Depleted (TCD) with T-Cell Addback Stem Cell Transplantation for Patients with High-Risk Sickle Cell Disease (SCD) (IND 14359). Biol Blood Marrow Transplant 2014. [DOI: 10.1016/j.bbmt.2013.12.208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Commentary. Re: Sudden onset of severe anemia in a patient with cystic fibrosis. Clin Chem 2012; 58:1290. [PMID: 22930223 DOI: 10.1373/clinchem.2011.174151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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A national survey of transfusion-related acute lung injury risk reduction policies for platelets and plasma in the United States. Transfusion 2010; 50:1312-21. [PMID: 20456690 DOI: 10.1111/j.1537-2995.2010.02659.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Little information exists on the specific transfusion-related acute lung injury (TRALI) risk reduction practices used by multiple blood collecting institutions in the United States. STUDY DESIGN AND METHODS An AABB-appointed TRALI working group designed a set of questions about TRALI risk reduction for platelets (PLTs) and plasma. AABB member institutions were asked to respond via an Internet-based survey during a 3-week period in August through September 2009. RESULTS Valid responses were received from 47 US blood centers (accounting for 1.57 million apheresis PLT units and 3.15 million whole blood-derived transfusable plasma units) and 56 hospital blood collectors. Among the blood centers, 87 and 98% had initiated some PLT and plasma risk reduction, respectively. HLA antibody testing of plateletpheresis donors was performed by 20 (43%) blood centers. There was substantial variation in the number of pregnancies (from one to more than four) that triggered testing and most centers did not screen based on a transfusion history. Almost all centers had policies to redirect HLA antibody-positive donors to whole blood donation and to potentially retest HLA antibody-negative donors. There were no blood centers performing HNA antibody testing. Sex-based risk reduction policies for plasma included all male, or predominantly male, and never-pregnant females; these varied by blood center, blood group, and method of plasma collection. A majority of centers indicated increased production of plasma frozen within 24 hours after phlebotomy. CONCLUSIONS Almost 3 years after the publication of the initial AABB bulletin on this issue, TRALI risk reduction strategies are commonly employed at most US blood centers. However, procedures are not uniform.
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The numerical computation of the transonic flow over two-element airfoil systems. ACTA ACUST UNITED AC 2005. [DOI: 10.1007/3-540-08004-x_320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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Abstract
The primary aim of this study was to assess potential barriers and motivators to blood and cord blood donation among African-American women. A telephone survey of African-American women, ages 18-30 years, in the St. Louis metropolitan area was performed. The survey was administered by trained telemarketing personnel using a Computer-Assisted Direct Interview (CADI) system. One hundred sixty-two women were surveyed. Common barriers to blood donation were inconvenience of donor sites (19%), fear of needles (16%), and too much time required to donate (15%). Potential motivators were increasing awareness of need for blood (43%), increasing the number of convenient donor locations (19%), and encouragement by spiritual leaders to have blood drives at their church (17%). Lack of awareness was the only identified barrier to cord blood donation. Most women surveyed (88%) indicated that they definitely or probably would donate cord blood. Strategies to increase the proportion of African-American blood and cord blood donations may include educating potential donors about the process and benefits of donation to particular patient populations and engaging church leadership in supporting blood and cord blood donations.
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Abstract
Three groups representing different phases of the developmental lifecycle--12 senior citizens, 67 young adults, and 14 healthy middle-aged normal adults--were assessed using a multidimensional control inventory. Senior citizens had a healthy over-all sense of control comparable to those of the other two groups and a significantly lower (healthier) negative sense of control. They also were significantly more likely to endorse acceptance as a way of addressing areas of concern and to complement self as a source of control with a sense of control coming from others (including God, belief in a higher power).
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Abstract
BACKGROUND Detection of hepatitis B surface antigen (HBsAg) in recently vaccinated adults has not previously been reported. Transient detectable HBsAg has been observed in newborn infants immunized with a recombinant hepatitis B vaccine. STUDY DESIGN AND METHODS Over a 1-year period, eight HBsAg-positive blood donors mentioned during donor notification that they had been vaccinated for hepatitis B virus 1 to 3 days before donation. Follow-up tests for HBsAg, antibodies to HBsAg, and antibodies to hepatitis B core antigen were performed 3 to 37 weeks after immunization. Four months later, a group of 19 donors who were coworkers received hepatitis B vaccination and then donated blood the next day. The coworkers were observed for duration of antigenemia. RESULTS A total of nine cases of transient, confirmed (neutralizable) antigenemia occurred in healthy individuals who donated blood 1 to 3 days following vaccination with a recombinant hepatitis B vaccine. Follow-up testing showed no evidence of infection by hepatitis B virus. One (5.3%) of 19 blood donors vaccinated as a group had antigenemia at Day 1 but not on Days 2 and 3 following immunization. CONCLUSION Individuals recently vaccinated for hepatitis B may test positive for HBsAg and become permanently disqualified as blood donors. Therefore, blood collection centers should consider temporary deferral of potential donors who recently received hepatitis B vaccine.
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A high-sensitivity electrochemiluminescence-based detection system for automated PCR product quantitation. Biotechniques 1993; 15:152-7. [PMID: 8363832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
A high-sensitivity nonisotopic system has been developed for post-PCR product detection. The probe-based detection system exploits a chemiluminescent reaction that takes place on the electrode surface in an electrochemical cell. The detection system incorporates a biotin-streptavidin capture reaction onto a solid support that permits fast post-PCR product detection at the attomole level. The system precision is within 5% relative standard deviation over a linear dynamic range of greater than three orders of magnitude. In this paper, the principles and features of the electrochemiluminescent-based detection system, together with its application to PCR product quantitation, are described in detail.
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Hierarchy of soliton solutions to the gauged nonlinear Schrödinger equation on the plane. PHYSICAL REVIEW LETTERS 1990; 65:3230-3232. [PMID: 10042816 DOI: 10.1103/physrevlett.65.3230] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Fibrinogen proteolysis and coagulation system activation during thrombolytic therapy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1990; 281:401-8. [PMID: 2129378 DOI: 10.1007/978-1-4615-3806-6_43] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Multiple arteriovenous malformations of the small intestine in a patient with protein S deficiency. Am J Clin Pathol 1989; 92:374-8. [PMID: 2528285 DOI: 10.1093/ajcp/92.3.374] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The authors report a case of arteriovenous malformations (AVMs) of the small intestine in a young patient with protein S deficiency. These disorders have not been previously reported to occur together. Protein S deficiency may cause thromboses in unusual sites, including the mesenteric veins. Several mechanisms linking protein S deficiency to the occurrence of AVMs in this patient are offered.
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Frequency-dependent noise in avalanche processes. PHYSICAL REVIEW LETTERS 1985; 54:2426-2428. [PMID: 10031339 DOI: 10.1103/physrevlett.54.2426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Self-esteem, ethnic identity, and behavioral adjustment among Anglo and Chicano adolescents in West Texas. J Adolesc 1985; 8:57-68. [PMID: 3989074 DOI: 10.1016/s0140-1971(85)80007-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This study provides a comparison of similarities and differences with respect to ethnic identity between Anglo and Chicano adolescents from Texas. A path analysis model was used to test a theoretical assumption concerning proposed antecedents and consequences of self-esteem. Research instruments included the Rosenberg Self Esteem Scale, the Semantic Differential (scales for Myself and My Ethnic Group) and the McGuire White Measure of Social Status. Results were consistent with the interpretation that there is a relationship between being Chicano and having lower self-esteem, lower behavioral adjustment, and higher ethnic esteem. The prediction that ethnic esteem would mediate between ethnic group and self-esteem was upheld. Variables such as ethnic group membership per se and sex appear as or more important to the prediction of behavioral level. Clinical implications include recognizing that Chicanos low in self-esteem or behavioral adjustment should not automatically be considered unusual. The problems faced by this group are considered as having something in common with other groups of people who have more problems, lesser status, fewer resources, and fewer sources of available help.
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Opinion: overcoming psychic numbing. THE JOURNAL OF THE MEDICAL SOCIETY OF NEW JERSEY 1984; 81:421-422. [PMID: 6590864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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Abstract
The authors have developed the Alcohol Poly-Diagnostic Interview, which permits the operationalization of the 10 leading definitions of alcoholism used in the United States and Europe. In a pilot study of 23 patients in an outpatient alcohol treatment facility, all patients were identified as alcoholic by seven of the diagnostic schemes; the other three diagnostic schemes identified at least 78% of the patients as alcoholic. The authors also found that the Diagnostic Interview Schedule was sensitive to the diagnosis of alcoholism among treated patients. This approach should facilitate further research into the relationship among various definitions of alcoholism and studies of their validity.
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Effective control of cisplatin-induced nausea using high-dose steroids and droperidol. CANCER TREATMENT REPORTS 1982; 66:243-5. [PMID: 7198937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Seventy-three consecutive patients receiving cisplatin-containing chemotherapy regimens were treated with an initial dose of chlorpromazine (25 mg im), droperidol (1 mg iv, then 1 mg sc every 4 hours), and methylprednisolone (250 mg every 4 hours for four doses). Twenty patients received a combination chemotherapy protocol that included cisplatin at a dose of 40 mg/m2 iv (group 1) and 53 patients received a protocol that included cisplatin at a dose of 120 mg/m2 iv (group 2). The median age of all the patients was 58 years. Seventy-five percent of the patients in group 1 and 45% of those in group 2 had no vomiting at all; the remainder had limited and tolerable vomiting. These results in a group of elderly patients compare favorably with trials of other antiemetic programs.
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Abstract
Two adults who had T-cell lymphoma-leukemia and recurrent hypercalcemia in the absence of radiographic evidence of bone disease are described. Bone histopathology showed marked osteoclastic activation. Bone resorbing factors, including both prostaglandin E and a material produced in the presence of a prostaglandin synthetase inhibitor, were detected in the in-vitro culture fluids of malignant cells of one of the patients. Serum levels of parathyroid hormone were not elevated. These findings suggest that hypercalcemia resulted from in-vitro osteoclast activation by tumor cell product(s), one of which may be similar, if not identical, to the lymphocyte product osteoclast-activating factor. Two other patients having T-cell lymphoma-leukemia and hypercalcemia have been identified in the literature: the malignant cells of one of these patients also released a calcium-mobilizing factor in vitro.
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Droperidol prevents nausea and vomiting from cis-platinum. N Engl J Med 1979; 301:47. [PMID: 449910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Cystic lymphangioma in a colt. J Am Vet Med Assoc 1979; 174:1228-30. [PMID: 438053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A 6-month-old Morgan colt was examined because of preputial edema and multiple nodular masses in the left inguinal region. A tentative diagnosis of lymphatic hamartoma was made on the basis of initial biopsy findings. The prognosis for surgical excision was poor due to the progressive expansile growth of the tumor. Secondary infectious complications developed, and the colt was euthanatized at the owner's request. An abdominal and retroperitoneal mass was seen at postmortem examination. The mass was adherent to the left lumbar musculature, the craniodorsal aspect of the pelvic inlet, the midjejunum, the left testicle, and the left kidney. The mass extended through the left inguinal and femoral canals into the deep intermuscular fascia of the hindlimb. Histologic examination of the mass indicated that it was a cystic lymphangioma.
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Abstract
1. In normal human platelets the concentrations of Na+ and K+ were 42.1 +/- 4.3 and 98.8 +/- 3.7 mequiv/l of platelet water respectively (mean +/- S.E. of 22 samples). 2. When platelet-rich plasma was incubated with 22Na+ at 37 degrees C for 2-3 h an increase in platelet Na+ concentration was found which was significant after 210 min. Platelet K+ concentration did not change significantly. The platelet 22Na+ radioactivity increased faster than did the total Na+ suggesting a Na+o-Na+ exchange process in unactivated platelets. 3. Addition of ADP to platelet-rich plasma resulted in platelet aggregation and a rapid rise (within seconds) in 22Na+-radioactivity within the platelets and after 300 s this increase diminished toward control levels. 4. Under the same experimental conditions, ADP did not bring about an increase of 36Cl- in the platelets. 5. Ouabain (10-(6) M) added to platelet-rich plasma induced an increase in Na+ concentration and 22Na+ radioactivity in the platelets, as well as a decrease in K+ concentration. ADP produced a further increase in 22Na+, which did not return toward control values, in the presence of ouabain. 6. The association of an increase in 22Na+ but not of 36Cl- accompanying aggregation by ADP suggests a selective mechanism for the movement of Na+ into platelets rather than a movement of NaCl together with water under an osmotic gradient.
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The kinetics of ring closure and hydrolysis of a number of halo-cobalt(III) complexes of diaminopolycarboxylate ligands. Inorganica Chim Acta 1975. [DOI: 10.1016/s0020-1693(00)85723-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Surgical treatment of rheumatic mitral insufficiency. THE PROCEEDINGS OF THE INSTITUTE OF MEDICINE OF CHICAGO 1973; 29:315. [PMID: 4719428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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