Searched for: department:Medicine. General Internal Medicine
recentyears:2
Transfer factor--current status and future prospects
Lawrence HS; Borkowsky W
We have detected new clues to the composition and function of 'Transfer Factor' using the direct Leucocyte Migration Inhibition (LMI) test as an in vitro assay of Dialysates of Leucocyte Extracts (DLE). This approach has revealed two opposing antigen-specific activities to be present in the same > 3500 < 12,000 DA dialysis fraction - one activity is possessed of Inducer/Helper function (Inducer Factor). The opposing activity is possessed of Suppressor function (Suppressor Factor). When non-immune leucocyte populations are cultured with Inducer Factor they acquire the capacity to respond to specific antigen and inhibition of migration occurs. This conversion to reactivity is antigen-specific and dose-dependent. When immune leucocyte populations are cultured with Suppressor Factor their response to specific antigen is blocked and Inhibition of Migration is prevented
PMID: 8993750
ISSN: 0921-299x
CID: 7079
Dialyzable lymphoid extract (DLE) from mice resistant to STZ-induced diabetogenesis can interrupt the progress of diabetes in STZ-treated CD-1 mice
Borkowsky W; Pilson R; Lawrence HS
DLE was prepared from the minority of euglycemic CD-1 mice, previously injected with STZ, and was administered to hyperglycemic CD-1 male mice 1, 2 and 3 weeks after completion of multidose STZ. Mice treated with DLE derived from 2 x 10(7) (IX) or 10(8) lymphocyte equivalents (lymph.equ) were significantly less hyperglycemic than the saline treated controls (P < 0.001). The effects of DLE remained evident for more than 10 weeks after the final DLE treatment. Mice treated with DLE prepared from diabetic mice (hg DLE) developed a somewhat more rapid onset of hyperglycemia than the STZ treated control animals, although this effect did not achieve statistical significance (P = 0.1). This DLE was absorbed on a rat insulinoma cell line (RIN), which contains interspecies cross-reacting islet antigens, and compared to the unabsorbed DLE. Mice treated with hg DLE preabsorbed on RIN cells, showed a slower onset of hyperglycemia. DLE prepared from euglycemia mice and the RIN-absorbed fraction were equally capable of preventing hyperglycemia (P < 0.05). In order to determine whether the DLE effects were genetically restricted, DLE was prepared from BALB/c mice, normally resistant to the diabetogenic effects of multidose STZ, both before and after STZ treatment. STZ primed CD-1 mice treated with 3 weekly doses of 2 x 10(7) lymph. equ. of untreated BALB/c derived DLE, STZ treated BALB/c derived DLE, and STZ treated CD-1 DLE were all less hyperglycemic than the control mice, who received saline (P < 0.001). However, mice treated with CD-1 DLE were less hyperglycemic than the mice given BALB/c derived DLE (P < 0.05). These effects were relatively long-lived. Mice that were given the > 3,500 Dalton fraction of CD-1 DLE were significantly less hyperglycemic than either the control mice or those treated with the < 3,500 Dalton fraction of CD-1 DLE (P < 0.05). Effects remained evident for more than 3 months after the last dose of DLE. Pancreatic tissue from the mice treated with the > 3,500 Dalton fraction of CD-1 derived DLE revealed slightly more islets of a slightly greater size with less surrounding inflammation than either control mice or mice treated with the < 3,500 Dalton fraction of DLE
PMID: 8993774
ISSN: 0921-299x
CID: 8019
Physician-patient interaction in reproductive counseling [Meeting Abstract]
Lipkin, M
Objective: To review the scientific and clinical bases for effective patient counseling in contraceptive care. Data Sources: All articles and chapters in the Annotated Bibliography of Doctor Patient Communication of the Task Force on Doctor and Patient of the American Academy on Physician and Patient were searched and included. This is an expert-derived data base based on MEDLINE review from 1969 to 1994 and including expert-selected additions from PsychLit and a variety of other social science data bases, books, and reviews. Methods of Study Selection: Expert consensus was used from the Committee on Bibliography of the American Academy on Physician and Patient. Tabulation, Integration, and Results: The doctor-patient interaction is the main determinant of the accuracy and completeness of patient data, diagnostic accuracy, efficiency in the encounter, compliance, patient understanding of problems, and patient and physician satisfaction. Yet this critical skill is inadequately taught and practiced, with serious consequences for patient care and physican job satisfaction. Use of the 14 structural elements (preparing the environment, preparing oneself, observation, greeting introduction, detecting and overcoming barriers to communication, surveying problems, negotiating a priority problem, developing a narrative thread, establishing the life context of the patient, establishing a safety net, presenting findings and options, negotiating plans, and closing) and three functions (gathering information, developing a therapeutic relationship, and patient education) and their associated behaviors improves encounter results significantly. Other helpful activities are patient activation, facilitating partnership, review of findings and plans, eliciting and responding to patients' attitudes and emotions about contraception and fertility, and use of empathy and positive regard. Conclusions: The use of scientifically derived, empirically validated interview skills substantially improves outcomes in contraceptive and other patient education and counseling. Use of appropriate structure and functions of the encounter, patient participation and partnership, review of patient understanding and reactions, and relating to the patients' attitudes and emotions about the subject each improve the outcomes of contraceptive care
ISI:A1996VE78100005
ISSN: 0029-7844
CID: 52819
Sisyphus or Pegasus? The physician interviewer in the era of corporatization of care [Editorial]
Lipkin, M
ISI:A1996TW77300010
ISSN: 0003-4819
CID: 53062
Should percutaneous transluminal coronary angioplasty catheters be reused? [Editorial]
Natarajan S; Williams SV
PMID: 8752802
ISSN: 0735-1097
CID: 34110
Gambling with time [General Interest Article]
Siegel, Marc
The case of a 35-year-old woman who reported to Siegel with abnormal and sometimes missing periods is recounted. The diagnosis was premature menopause
PROQUEST:10490794
ISSN: 0274-7529
CID: 86254
Stress fractures [General Interest Article]
Siegel, Marc
Siegel discusses the unusual case of Sandra, a diabetic woman who suffered from extreme multiple personality disorder. It seemed as though Sandra's many different personalities had varying blood sugar levels
PROQUEST:9446007
ISSN: 0274-7529
CID: 86255
Educating health and social service professionals in the detection and management of mistreated nursing home residents
Capezuti, E; Siegler, EL
A paucity of literature and educational materials addresses the mistreatment of nursing home residents. After serving as expert witnesses in the successful criminal prosecution of a nursing home corporation charged with involuntary manslaughter of two nursing home residents, the authors recognized the need to improve recognition and prevention of institutional mistreatment. This article will describe our involvement in post-trial advocacy efforts to improve the quality of care of nursing home residents through community education efforts
ISI:A1996WH01400007
ISSN: 0894-6566
CID: 53296
Drug-induced apoptosis in B-cell chronic lymphocytic leukemia: relationship between p53 gene mutation and bcl-2/bax proteins in drug resistance
Thomas A; El Rouby S; Reed JC; Krajewski S; Silber R; Potmesil M; Newcomb EW
We investigated the relationship among chemosensitivity to drug-induced apoptosis in vitro, the presence of p53 gene mutations, and the expression of bcl-2 and bax proteins in B-cells from B-cell chronic lymphocytic leukemia (B-CLL) patients. Apoptosis was induced with a camptothecin analogue, 9-amino-20(s)-camptothecin, or a purine analogue, fludarabine. Cell death was monitored by propidium iodide staining and FACS analysis. Drug-induced apoptosis in B-CLL cells was p53-independent. Immunoblot analysis of bcl-2 and bax expression revealed a correlation between drug-induced apoptosis and the ratio of endogenous levels of bcl-2 to bax proteins. B-CLL cells with none to low bcl-2/bax ratios were drug-sensitive as compared to cells with intermediate to high ratios that were drug-resistant (P = 0.015). Prior to drug treatment, bax protein migrated as a single species of 21 kDa. Following drug-induced apoptosis, anti-bax specific protein complexes of 36-42 kDa were up-regulated. Using two-dimensional gel electrophoresis, bax complexes were disrupted under reducing conditions to reveal homo- and heterodimers of 18 and 21 kDa suggesting that disulfide interactions were required for complex formation. The de novo appearance of the 18 kDa anti-bax specific protein together with its increased expression in drug-sensitive B-CLL B-cells undergoing cell death suggests a role for this protein in the regulation of apoptosis
PMID: 8649796
ISSN: 0950-9232
CID: 6969
Transcription of human herpesvirus-like agent (HHV-8) in Kaposi's sarcoma
Huang YQ; Li JJ; Zhang WG; Feiner D; Friedman-Kien AE
Recently, DNA sequences of what appear to be a unique human herpesvirus-like agent (HHV-8) have been detected in different types of Kaposi's sarcoma (KS) tumors (Chang, Y., E.C. Cesarman, M.S. Pessin, F. Lee, J.C. Culpepper, D.M. Knowles, and P.S. Moore. 1994. Science (Wash. DC). 266:1865-1869). To further elucidate the possibility that HHV-8 plays a role in the pathogenesis of KS, the expression of HHV-8 RNA was examined in fresh KS tissue specimens which were found to harbor HHV-8 DNA by polymerase chain reaction (PCR). The transcription of HHV-8 RNA was detected by RT-PCR in 26 of 29 specimens (89.7%) of the KS tumors including 2 of 3 CKS and 24 of 26 AIDS-KS. No positive signal was detected in eight biopsy specimens of normal skin from healthy donors. By Northern blot analysis, the expression of HHV-8 was detected in 2 of 10 KS tumors examined. Furthermore, the RNA transcripts were observed in endothelial cells lining the irregular vascular spaces and perivascular spindle-shaped cells histologically characteristic of KS in 2 out of 8 different KS specimens examined by in situ hybridization using an antisense probe specific of HHV-8. The detection of RNA expression of HHV-8 in KS tumors further supports the possible etiopathogenic role of this virus in the development of KS
PMCID:507373
PMID: 8675691
ISSN: 0021-9738
CID: 57412