1
|
Wiesenfeld H, Meyn L, Macio I, Priest C, Trucco G, Amortegui A, Hillier S. 25: Mycoplasma genitalium and acute pelvic inflammatory disease. Am J Obstet Gynecol 2016. [DOI: 10.1016/j.ajog.2016.09.026] [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: 10/20/2022]
|
2
|
Wiesenfeld HC, Hillier SL, Meyn L, Trucco G, Amortegui A, Macio IS, Rabe L, Cosentino L, Darville T. O04.6 Mycoplasma Genitalium- Is It a Pathogen in Acute Pelvic Inflammatory Disease (PID)? Sex Transm Infect 2013. [DOI: 10.1136/sextrans-2013-051184.0106] [Citation(s) in RCA: 3] [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: 11/03/2022] Open
|
3
|
Hillier SL, Rabe LK, Meyn L, Macio I, Trucco G, Amortegui A, Darville T, Wiesenfeld HC. O05.6 Endometrial Gardnerella Vaginalisand Atopobium VagineaAre Associated with Histologic Endometritis Among Women with Clinically Diagnosed Pelvic Inflammatory Disease (PID). Br J Vener Dis 2013. [DOI: 10.1136/sextrans-2013-051184.0112] [Citation(s) in RCA: 3] [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: 11/04/2022]
|
4
|
Ness RB, Soper DE, Holley RL, Peipert J, Randall H, Sweet RL, Sondheimer SJ, Hendrix SL, Amortegui A, Trucco G, Bass DC, Kelsey SF. Hormonal and barrier contraception and risk of upper genital tract disease in the PID Evaluation and Clinical Health (PEACH) study. Am J Obstet Gynecol 2001; 185:121-7. [PMID: 11483915 DOI: 10.1067/mob.2001.115114] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Among women diagnosed with pelvic inflammatory disease, we examined the associations between hormonal or barrier methods of contraception and upper genital tract infection or inflammation. METHODS Participants were 563 patients from a treatment trial for pelvic inflammatory disease. All had pelvic pain; pelvic organ tenderness; and leukorrhea, mucopurulent cervicitis, or untreated cervicitis. Contraceptive use within the prior 4 weeks was compared among women with baseline upper genital tract gonorrhea or chlamydia, women with endometritis without upper genital tract gonorrhea or chlamydia, and women with neither upper genital tract gonorrhea or chlamydia nor endometritis. RESULTS Inconsistent condom use was significantly and independently associated with a 2 to 3 times elevated risk for upper genital tract infection. Upper genital tract gonorrhea or chlamydia was not significantly associated with use of oral contraceptives, use of medroxyprogesterone, condoms used consistently, nor other barrier methods. CONCLUSION No hormonal or barrier contraceptive method was related to a reduction in upper genital tract disease among women with clinical pelvic inflammatory diseases.
Collapse
Affiliation(s)
- R B Ness
- University of Pittsburgh, Graduate School of Public Health, 130 DeSoto St., Pittsburgh, PA 15261, USA.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Ness RB, Soper DE, Holley RL, Peipert J, Randall H, Sweet RL, Sondheimer SJ, Hendrix SL, Hillier SL, Amortegui A, Trucco G, Bass DC. Douching and endometritis: results from the PID evaluation and clinical health (PEACH) study. Sex Transm Dis 2001; 28:240-5. [PMID: 11318257 DOI: 10.1097/00007435-200104000-00010] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Douching has been related to risk of pelvic inflammatory disease (PID). GOAL To examine the association between douching and PID in a large, multicenter, clinical trial of PID after adjustment for race/ethnicity. STUDY DESIGN Interviews were conducted with 654 women who had signs and symptoms of PID. Vaginal Gram stains and upper genital tract pathology/cultures were obtained from all the women. Women with evidence of plasma cell endometritis and/or gonococcal or chlamydial upper genital tract infections were compared with women who had neither endometritis nor upper genital tract infection. RESULTS Women with endometritis or upper genital tract infection were more likely to have douched more than once a month or within 6 days of enrollment than women who never douched. These associations remained after adjustment for confounding factors, after analysis of black women only; and among women with normal or intermediate vaginal flora but not bacterial vaginosis. CONCLUSION Among a predominantly black group of women with clinical PID, frequent and recent douching was associated with endometritis and upper genital tract infection.
Collapse
Affiliation(s)
- R B Ness
- University of Pittsburgh, Graduate School of Public Health, Pennsylvania 15261, USA. repro+@pitt.edu
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
6
|
Peipert JF, Ness RB, Blume J, Soper DE, Holley R, Randall H, Sweet RL, Sondheimer SJ, Hendrix SL, Amortegui A, Trucco G, Bass DC. Clinical predictors of endometritis in women with symptoms and signs of pelvic inflammatory disease. Am J Obstet Gynecol 2001; 184:856-63; discussion 863-4. [PMID: 11303192 DOI: 10.1067/mob.2001.113847] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.7] [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: 11/22/2022]
Abstract
OBJECTIVE Careful detection and treatment of pelvic inflammatory disease are essential for the prevention of adverse sequelae. The purpose of this study was to evaluate the diagnostic test characteristics of clinical criteria for the diagnosis of pelvic inflammatory disease. STUDY DESIGN We performed a cross-sectional analysis of the baseline characteristics of 651 patients enrolled in a multicenter randomized treatment trial for pelvic inflammatory disease. Clinical and laboratory findings were recorded for all patients, and endometrial sampling was performed. We calculated sensitivity and specificity and performed receiver operating characteristic curve analysis and multivariate logistic regression, using histologic endometritis as the criterion standard. RESULTS The minimal criteria for pelvic inflammatory disease, as recommended by the Centers for Disease Control and Prevention, had a sensitivity of 83%, in comparison with a 95% sensitivity for adnexal tenderness (P =.001). Of the supportive clinical criteria, the finding most highly associated with endometritis was a positive test result for Chlamydia trachomatis or Neisseria gonorrhoeae (adjusted odds ratio, 4.3; 95% confidence interval, 2.89--6.63). A multivariate logistic regression model indicated that combinations of criteria significantly improve the prediction of endometritis. CONCLUSION Sensitivity can be maximized by using the presence of adnexal tenderness as a minimal criterion for the diagnosis of pelvic inflammatory disease, and supportive criteria are helpful in estimating the probability of endometritis.
Collapse
Affiliation(s)
- J F Peipert
- Department of Obstetrics and Gynecology, Women and Infants' Hospital, Brown University School of Medicine, Providence, Rhode Island 02905, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Luppi P, Licata A, Haluszczak C, Rudert WA, Trucco G, McGowan FX, Finegold D, Boyle GJ, Trucco M. Analysis of TCR Vbeta repertoire and cytokine gene expression in patients with idiopathic dilated cardiomyopathy. J Autoimmun 2001; 16:3-13. [PMID: 11221991 DOI: 10.1006/jaut.2000.0462] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [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: 11/22/2022]
Abstract
Although the etiopathogenesis of idiopathic dilated cardiomyopathy (IDC) is still unclear, it is widely accepted that a complex interplay between viral infections and immune mechanisms is the basis of disease genesis. Previously, we showed that heart-infiltrating T cells of patients suffering from acute, fulminant Coxsackie virus B3+-IDC shared a preferential usage of three variable gene segments of the T cell receptor beta chain-(TCR-Vbeta) encoding families Vbeta3, 7 and 13.1. This indicated the possible presence of a superantigen-driven immune response. Here, we further investigated the IDC immunological scenario by analysing different phenotypes of heart-infiltrating cells: TCR repertoires, cytokine expression and presence of enterovirus-specific antigens. IDC patients who underwent heart transplantation at different times after the onset of heart failure were studied. A cardiac infiltrate of CD4+ and CD8+ T cells was present together with activated macrophages. Furthermore, the same Vbeta gene families, previously found to be skewed in hearts from fulminant cases of CVB3+-IDC, together with two additional Vbeta gene families, Vbeta1 and 5B, were increased. IL-1beta, IL-2, IL-6 and IFN-gamma were expressed in the myocardium while others, like IL-4 were not. In conclusion, an orchestrated complex of immune mechanisms seems to be the basis of IDC etiopathogenesis.
Collapse
MESH Headings
- Antigens, Viral/analysis
- CD4 Antigens/biosynthesis
- CD8 Antigens/biosynthesis
- Cardiomyopathy, Dilated/immunology
- Cardiomyopathy, Dilated/pathology
- Cardiomyopathy, Dilated/virology
- Cytokines/genetics
- Enterovirus B, Human/genetics
- Enterovirus B, Human/immunology
- Gene Expression
- HLA-DQ Antigens/classification
- HLA-DQ alpha-Chains
- HLA-DQ beta-Chains
- Histocompatibility Testing
- Humans
- Immunoenzyme Techniques
- Interferon-gamma/genetics
- Interleukin-1/genetics
- Interleukin-2/genetics
- Interleukin-4/genetics
- Interleukin-6/genetics
- Leukocytes, Mononuclear/immunology
- Myocarditis/immunology
- Myocardium/immunology
- Myocardium/pathology
- Picornaviridae/genetics
- Picornaviridae/isolation & purification
- RNA, Messenger
- Receptors, Antigen, T-Cell, alpha-beta/analysis
- Reverse Transcriptase Polymerase Chain Reaction
Collapse
Affiliation(s)
- P Luppi
- Division of Immunogenetics, Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Luppi P, Rudert WA, Zanone MM, Stassi G, Trucco G, Finegold D, Boyle GJ, Del Nido P, McGowan FX, Trucco M. Idiopathic dilated cardiomyopathy: a superantigen-driven autoimmune disease. Circulation 1998; 98:777-85. [PMID: 9727548 DOI: 10.1161/01.cir.98.8.777] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.7] [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: 11/16/2022]
Abstract
BACKGROUND Many cases of idiopathic dilated cardiomyopathy (IDC) result from an inflammatory myocarditis. The specific immunological mechanisms are not yet defined. Various autoimmune diseases are associated with superantigen-triggered immune responses, resulting in massive T-cell activation and tissue damage. We studied 3 cases in a search for evidence that such a phenomenon is also implicated in IDC. METHODS AND RESULTS Myocardial, lymph node, and thymic tissue samples were obtained from IDC patients who were undergoing heart transplantation. Infiltrating immune-cell phenotypes and gene expression of T-cell receptor (TCR) alpha- and beta-chain variable (Valpha and Vbeta) regions were analyzed by immunostaining and polymerase chain reaction. Similar technical approaches were used to assay the tissues for the presence of coxsackievirus B (CVB). In all the specimens analyzed, an overexpression of the TCR Vbeta3, Vbeta7, and Vbeta13.1 gene families was detected among the infiltrating T cells. These tissues were also found to be CVB3-positive. In vitro exposure of peripheral blood mononuclear cells to lysates of cells infected with CVB3 was capable of stimulating expansion of the same TCR Vbeta families. The TCR Valpha repertoire was never found to be skewed. CONCLUSIONS A superantigen-mediated immune response is involved in human heart disease. CVB3 may directly or indirectly trigger this response, suggesting a possible mechanistic link between CVB infection and myocarditis development progressing to IDC.
Collapse
Affiliation(s)
- P Luppi
- Department of Pediatrics, University of Pittsburgh School of Medicine and Children's Hospital, PA, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Stassi G, De Maria R, Trucco G, Rudert W, Testi R, Galluzzo A, Giordano C, Trucco M. Nitric oxide primes pancreatic beta cells for Fas-mediated destruction in insulin-dependent diabetes mellitus. J Exp Med 1997; 186:1193-200. [PMID: 9334358 PMCID: PMC2199078 DOI: 10.1084/jem.186.8.1193] [Citation(s) in RCA: 182] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Fas is an apoptosis-inducing surface receptor involved in controlling tissue homeostasis and function at multiple sites. Here we show that beta cells from the pancreata of newly diagnosed insulin-dependent diabetes mellitus (IDDM) patients express Fas and show extensive apoptosis among those cells located in proximity to Fas ligand-expressing T lymphocytes infiltrating the IDDM islets. Normal human pancreatic beta cells that do not constitutively express Fas, become strongly Fas positive after interleuken (IL)-1beta exposure, and are then susceptible to Fas-mediated apoptosis. NG-monomethyl-L-arginine, an inhibitor of nitric oxide (NO) synthase, prevents IL-1beta-induced Fas expression, whereas the NO donors sodium nitroprusside and nitric oxide releasing compound (NOC)-18, induce functional Fas expression in normal pancreatic beta cells. These findings suggest that NO-mediated upregulation of Fas contributes to pancreatic beta cell damage in IDDM.
Collapse
Affiliation(s)
- G Stassi
- Division of Immunogenetics, Department of Pediatrics, University of Pittsburgh School of Medicine, PA 15213, USA
| | | | | | | | | | | | | | | |
Collapse
|
10
|
Sunyecz JA, Price FV, Trucco G, Thomas R, Swerdlow SH. Lymphoproliferative disorder involving the cervix in a patient being treated with FK-506. Gynecol Oncol 1996; 62:301-3. [PMID: 8751565 DOI: 10.1006/gyno.1996.0231] [Citation(s) in RCA: 2] [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: 02/02/2023]
Abstract
FK-506 is an immunosuppressive agent used mainly to prevent allograft rejection in organ transplant patients. Recently, it has been applied as a treatment for patients with autoimmune disorders. An entity called posttransplant lymphoproliferative disorder (PTLD) is a well-recognized result of immunosuppression in transplant patients receiving long-term immunosuppression. This disorder is a complication of treatment with FK-506 in 0.7 to 1.6% of transplant patients and is usually of B-cell origin. A majority of patients have serologic evidence of EBV infection. We report a case of a patient receiving long-term FK-506 therapy for multiple sclerosis who developed lymphoproliferative disorder involving the cervix. We will discuss the possible role of FK-506 initiation of this tumor.
Collapse
Affiliation(s)
- J A Sunyecz
- Department of Obstetrics, Gynecology, and Reproductive Sciences and Pathology, Magee-Womens Hospital, University of Pittsburgh, Pennsylvania 15213, USA
| | | | | | | | | |
Collapse
|
11
|
Conrad B, Weidmann E, Trucco G, Rudert WA, Behboo R, Ricordi C, Rodriquez-Rilo H, Finegold D, Trucco M. Evidence for superantigen involvement in insulin-dependent diabetes mellitus aetiology. Nature 1994; 371:351-5. [PMID: 8090207 DOI: 10.1038/371351a0] [Citation(s) in RCA: 215] [Impact Index Per Article: 7.2] [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
Insulin-dependent diabetes mellitus (IDDM) is a T-cell-mediated autoimmune disease whose onset is believed to be triggered by unknown environmental factors acting on a predisposing genetic background. Islet-infiltrating T (IIT) cells from two IDDM patients, who had died at the onset of the disease from brain swelling as a complication of ketoacidosis, were analysed. The results provided evidence for the involvement of a pancreatic islet cell membrane-bound superantigen as a diabetes aetiopathogenetic factor. There was a selective expansion of a T-cell receptor (TCR) variable segment of the beta-chain (V beta 7) in these IIT cells in association with unselected V alpha-chain segments; extensive junctional diversity of the TCR V beta 7 chains; and evidence of positive selection, after exposure to diabetic islet cell membrane preparations, of V beta 7+ T-cell clones among peripheral blood lymphocytes from non-diabetic individuals.
Collapse
Affiliation(s)
- B Conrad
- Department of Pediatrics, Rangos Research Center, Children's Hospital of Pittsburgh, Pennsylvania
| | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Mourad WA, Setrakian S, Hales ML, Abdulla M, Trucco G. The argyrophilic nucleolar organizer regions in ductal carcinoma in situ of the breast. The significance of ploidy and proliferative activity analysis using this silver staining technique. Cancer 1994; 74:1739-45. [PMID: 8082076 DOI: 10.1002/1097-0142(19940915)74:6<1739::aid-cncr2820740616>3.0.co;2-t] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [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
BACKGROUND Two interphase argyrophilic nucleolar organizer region (AgNOR) counts have been correlated with ploidy and proliferative activity in patients with ductal carcinoma in situ (DCIS) of the breast. The first is the mean number of AgNORs (mAgNOR); it reflects ploidy. The second is the percentage of nuclei with greater than or equal to five AgNORs/nucleus (pAgNOR); it correlates with proliferative activity. DCIS of the breast is a heterogeneous group of lesions that is not associated uniformly with invasive ductal carcinoma. A significant number of patients with DCIS will, however, progress to invasive ductal carcinoma. Factors identifying the invasive potential of DCIS in these patients have not been defined clearly. The authors postulated that pAgNOR in DCIS may predict the invasive potential of these lesions. METHODS The authors studied 86 cases of DCIS of the breast by the AgNOR silver stain using the two above-mentioned counts. RESULTS There were 54 comedo and 32 noncomedo DCIS cases. Forty-one cases (47%) were associated with invasive ductal carcinoma. Thirty cases of comedo DCIS (55%) showed mAgNOR counts suggestive of aneuploidy (> or = 2.4/nucleus), whereas only seven cases of noncomedo DCIS (22%) showed such counts (P = 0.001). Cases associated with invasion had higher incidence of aneuploid mAgNOR counts (P = 0.0003). The pAgNOR counts in comedo DCIS ranged from 1% to 36% (median, 11%), whereas in noncomedo DCIS pAgNOR counts ranged from 0% to 22% (median, 7%) (P = 0.007). The 41 cases associated with invasion had pAgNOR counts ranging from 3% to 36% (median, 12%), whereas those not associated with invasion had pAgNOR counts ranging from 0% to 24% (median, 5%) (P = 0.000001). This difference was irrespective of the type of DCIS or mAgNOR counts. CONCLUSIONS Comedo DCIS of the breast may show a higher incidence of aneuploidy and increased proliferative activity and invasive ductal carcinoma than does noncomedo DCIS. Ploidy and proliferative activity, measured by AgNOR staining in DCIS, may have a significant predictive value in identifying the invasive potential of these lesions.
Collapse
Affiliation(s)
- W A Mourad
- Department of Pathology, University of Alberta, Edmonton, Canada
| | | | | | | | | |
Collapse
|
13
|
Rilo HL, Carroll PB, Trucco M, Phipps J, Trucco G, Finegold D, Ricordi C. Human pancreatic islet isolation from a diabetic non-heart-beating donor. Transplant Proc 1994; 26:598. [PMID: 8171575] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- H L Rilo
- University of Pittsburgh Transplantation Institute, Pennsylvania
| | | | | | | | | | | | | |
Collapse
|
14
|
Naus GJ, Sargus MJ, Trucco G, Amenta JS. Flow cytometric DNA content analysis of thymidine-induced cell death. In Vitro Cell Dev Biol Anim 1994; 30A:15-6. [PMID: 8193766 DOI: 10.1007/bf02631410] [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] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
15
|
Bobbio M, Abecia A, Demichelis B, Magnacca M, Trucco G. How the exercise electrocardiogram is used in clinical practice in patients with suspected coronary artery disease. Am J Cardiol 1993; 72:763-6. [PMID: 8213506 DOI: 10.1016/0002-9149(93)91059-q] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Clinical use of a test should be evaluated not only on the change of pretest probability but also on the increased confidence in the judged probability, and on the decision of recommending additional tests or therapy after test results. Before and after the test, cardiologists referring a patient for exercise electrocardiogram for suspected coronary artery disease were asked to estimate the probability of coronary artery disease and the minimal and maximal value of their estimate (plausible range), to judge whether to refer the patient for coronary angiography, and to specify patient's treatment. After the test, the percentage of patients with estimated probability < or = 20% increased (from 53 to 69%; p = 0.005) and the percentage of patients with intermediate probability (between 21 and 80%) decreased (from 37 to 16%; p = 0.0001). The mean plausible range decreased from pre- to post-test assessment (31 +/- 23 to 15 +/- 16%; p = 0.0001), indicating an increase in cardiologists' confidence in their estimates. After the test, the percentage of cardiologists who wished to either refer or not refer patients for coronary angiography increased (from 4 to 13%, p < 0.005; and from 37 to 65%, p < 0.0001, respectively). Test results enable cardiologists to change the assessment of disease probability, the confidence in their own estimates, and their judgment of whether to refer patients for coronary angiography.
Collapse
Affiliation(s)
- M Bobbio
- Divisione Universitaria di Cardiologia, Ospedale Molinette, Torino, Italy
| | | | | | | | | |
Collapse
|
16
|
Abstract
To ascertain why HLA-DR2 seems to confer only a moderate resistance to insulin-dependent diabetes mellitus (IDDM) in the high-incidence population of Sardinia, Italy, 32 families having one individual affected with IDDM (the proband) and 31 families without IDDM history were randomly selected from the same geographical area and serologically and molecularly HLA typed. The 64 haplotypes of the probands were then compared with the 122 haplotypes determined in the parents from the control families. Two haplotypes were found to have the highest percentage in the general population (12.3% and 7.3%, respectively). The first is the already described "Sardinian" extended haplotype A30, Cw5, B18, 3F130, DR3, DRw52, DQw2 (39.0% in IDDM patients). The second is an extended haplotype that has not been identified before (A2, Cw7, B17, 3F31, DR2, DQw1), and, due to the DR2 allele, we expected it to be decreased in IDDM. However, a stratified analysis performed by removing the DR3 and DR4 haplotypes showed that the frequency of this haplotype is significantly increased in IDDM patients. A peculiar feature of this haplotype is its DQw1 allele, which is DQB1*0502 and has serine in position 57 of the DQ beta chain. The absence of an aspartic acid in this position seems to confer susceptibility to IDDM and not resistance. The fact that DQB1*0502 was present in 75% of the Sardinian DR2 haplotypes may explain why, in Sardinia, DR2 is not providing the commonly recognized resistance to IDDM.
Collapse
Affiliation(s)
- C Carcassi
- Department of Medical Genetics, University of Cagliari, School of Medicine, Italy
| | | | | | | |
Collapse
|
17
|
Abstract
The allelic forms of the human leukocyte antigen (HLA)-DQ beta-chain (DQB1) have been recognized as the best markers of insulin-dependent diabetes mellitus (IDDM) susceptibility. We describe a method that allows the recognition of these DQB1 alleles without the use of either allele-specific oligonucleotide probes or radioactive material. This method determines these alleles by electrophoretically separating restriction enzyme-generated fragments from the polymerase chain-reaction-amplified second exon of the HLA-DQB1 gene, which encodes the first domain of the protein chain. This digestion method, which is simpler and more rapid than the previously adopted hybridization method, is described in detail to enable individuals at any clinical laboratory to quickly ascertain IDDM susceptibility.
Collapse
Affiliation(s)
- G Trucco
- Department of Pathology, University of Pittsburgh, School of Medicine, Pennsylvania
| | | | | | | |
Collapse
|
18
|
Ottino G, Villani M, De Paulis R, Trucco G, Viara A. Restoration of atrioventricular conduction after surgical removal of a hydatid cyst of the interventricular septum. J Thorac Cardiovasc Surg 1987; 93:144-7. [PMID: 3796025] [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: 01/07/2023]
|
19
|
Cherchi A, Lai C, Angelino F, Trucco G, Caponnetto S, Mereto PE, Rosolen G, Manzoli U, Schiavoni G, Reale A. Effects of L-carnitine on exercise tolerance in chronic stable angina: a multicenter, double-blind, randomized, placebo controlled crossover study. Int J Clin Pharmacol Ther Toxicol 1985; 23:569-72. [PMID: 3905631] [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: 01/07/2023]
Abstract
L-carnitine was studied in forty-four men with stable chronic angina in a multicenter, double-blind, randomized, placebo controlled crossover trial. A cycloergometer exercise test was performed after a 10-day wash-out with placebo and at the end of each 4-week treatment period with either L-carnitine (1 g twice daily) or placebo. The mean (+/- SD) exercise work load showed an increase after L-carnitine compared to placebo (102.73 +/- 22.23 and 97.05 +/- 22.77 watts respectively, p = 0.001), as did the watts to onset of angina (95.7 +/- 24.07 and 87.44 +/- 24.67, p = 0.000). On the contrary, the ST segment depression was reduced by L-carnitine compared to placebo both at the maximum work load (1.40 +/- 0.90 and 1.69 +/- 0.82 mm, p = 0.05) and at the maximum work load common to L-carnitine and placebo (1.24 +/- 0.90 and 1.66 +/- 0.79 mm, p = 0.005). 22.7% of the patients became free of angina with L-carnitine and 9.1% with placebo. Resting and exercise blood pressure, heart-rate and double product were unaffected by L-carnitine. 1 patient decided to discontinue the trial because of gastric pyrosis while taking the active drug. The results of this study show that treatment with L-carnitine increases exercise tolerance and reduces ECG indices of ischemia in stable effort-induced angina.
Collapse
|
20
|
Pavia M, Idone P, Ravera A, Rey L, Trucco G, Aquaro G. [Platelet anti-aggregating therapy with dipyridamole in the prevention of early post-infarct angina]. Minerva Cardioangiol 1981; 29:729-33. [PMID: 7335171] [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: 01/24/2023]
|
21
|
Grande A, Trucco G, Gobbi G, Malara D, Commodo EA. [Coronary fistulas. Considerations on 3 treated cases]. Minerva Cardioangiol 1981; 29:681-706. [PMID: 7038535] [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: 01/23/2023]
|
22
|
Pinna Pintor P, Boggio D, De Francesco A, Orlandi F, Segoloni GP, Trucco G. [Regulation of intravascular volume in acute myocardial infarct. Physiopathological and clinical aspects]. Minerva Dietol Gastroenterol 1981; 27:475-86. [PMID: 7036002] [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]
|