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1.
Climacteric ; 23(5): 482-488, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32299247

RESUMO

Objective: Vasomotor symptoms (hot flashes, night sweats) are common during the menopausal transition. Pharmacotherapy is effective but is associated with health risks for some women. There is an increasing demand for non-pharmacological interventions. The CBT-Meno protocol is a psychological intervention targeting a range of common menopausal symptoms. We compared the impact of CBT-Meno vs. waitlist on objective and subjective measures of vasomotor symptoms and on the relationship between vasomotor symptoms and sleep difficulties.Materials: The participants were 36 perimenopausal or postmenopausal women with co-occurring depressive symptoms who participated in the CBT-Meno trial (clinicaltrials.gov NCT02480192). Subjective measures included the Hot Flash Related Daily Interference Scale, the Greene Climacteric Scale, and the Pittsburgh Sleep Quality Inventory. Objective (physiological) and 'in-the-moment' measures of vasomotor symptoms were assessed with sternal skin conductance.Results: Greater improvements in vasomotor 'bothersomeness' and 'interference' were observed in the CBT-Meno condition compared to the waitlist condition. No between-group differences were observed in vasomotor frequency (subjectively or objectively recorded) or severity ratings. Sleep disturbance was unrelated to objectively measured vasomotor symptom frequency.Conclusion: The CBT-Meno trial improved subjective but not objective (physiological) measures of vasomotor symptoms. Self-reported sleep difficulties were unrelated to subjective or objective vasomotor symptoms.


Assuntos
Terapia Cognitivo-Comportamental/métodos , Depressão/terapia , Fogachos/terapia , Perimenopausa/psicologia , Pós-Menopausa/psicologia , Adulto , Idoso , Depressão/fisiopatologia , Feminino , Resposta Galvânica da Pele , Fogachos/fisiopatologia , Humanos , Pessoa de Meia-Idade , Perimenopausa/fisiologia , Pós-Menopausa/fisiologia , Escalas de Graduação Psiquiátrica , Índice de Gravidade de Doença , Método Simples-Cego , Sono , Sudorese , Resultado do Tratamento , Sistema Vasomotor/fisiopatologia
2.
Sex Transm Infect ; 80(6): 536-40, 2004 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-15572631

RESUMO

OBJECTIVES: To establish the prevalence of HIV, syphilis, and sexual risk behaviour among three groups of men who have sex with men in Jakarta, Indonesia, and to investigate sexual links between these men and broader heterosexual populations. METHODS: Anonymous, cross sectional surveys among community recruited transgender and male sex workers and self recognised men who have sex with men (MSM) were undertaken in mid-2002 in Jakarta, Indonesia. Places where transgender and male sex workers sell sex and where men go to meet non-commercial male sex partners were mapped. Probability samples were selected for the sex worker populations, while a mixed probability and convenience sample was drawn for self recognised MSM. Blood was drawn for HIV and syphilis serology and community interviewers administered a standardised questionnaire. RESULTS: HIV prevalence was 22% among transgender sex workers, 3.6% among male sex workers, and 2.5% among self recognised MSM, and syphilis prevalence was 19.3%, 2.0% and 1.1% respectively. 59.3% of transgender sex workers and 64.8% of male sex workers reported recent unprotected anal intercourse with clients, and 53.1% of other MSM reported unprotected anal sex with male partners. Some 54.4% of male sex workers and 18.3% of other MSM reported female partners in the preceding year. CONCLUSION: HIV has reached substantial levels among transgender sex workers, and is not negligible in other MSM groups. Risk behaviour is high in all subpopulations, and bisexual behaviour is common, meaning the threat of a wider epidemic is substantial. Prevention programmes targeting male-male sex are needed to reduce this threat.


Assuntos
Infecções por HIV/epidemiologia , Homossexualidade Masculina/estatística & dados numéricos , Trabalho Sexual/estatística & dados numéricos , Sífilis/epidemiologia , Transexualidade , Adulto , Preservativos/estatística & dados numéricos , Aconselhamento , Estudos Transversais , Infecções por HIV/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Indonésia/epidemiologia , Masculino , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Prevalência , Sexo sem Proteção
3.
Anesth Analg ; 93(3): 587-9, 2001 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-11524322

RESUMO

IMPLICATIONS: We report a case of prolonged radiofrequency liver ablation for metastatic carcinoid tumor complicated by hemolysis, rhabdomyolysis, and transient acute renal failure. Brief radiofrequency liver ablation procedures or those for a small number of tumor sites are not associated with these complications.


Assuntos
Injúria Renal Aguda/etiologia , Tumor Carcinoide/secundário , Tumor Carcinoide/cirurgia , Ablação por Cateter/efeitos adversos , Neoplasias Renais/secundário , Neoplasias Renais/cirurgia , Pressão Sanguínea/efeitos dos fármacos , Tumor Carcinoide/fisiopatologia , Eletrocardiografia , Humanos , Neoplasias Renais/fisiopatologia , Laparoscopia , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica
4.
AIDS Res Hum Retroviruses ; 17(17): 1655-9, 2001 Nov 20.
Artigo em Inglês | MEDLINE | ID: mdl-11779353

RESUMO

HIV-1 from 16 sexually transmitted disease clinic patients in Timika, West Papua, Indonesia was amplified by RT-PCR and subtyped by a combination of envelope and gag region heteroduplex mobility analysis (HMA) and direct PCR DNA sequencing. HMA showed the presence of 14 subtype E (CRF01_AE) and 2 subtype B HIV-1. Phylogenetic analysis of a 540-bp V3-V4 region of gp120 showed that 9 of 10 CRF01_AE variants clustered tightly with a median distance of 1.3% (range, 0.5 to 2.2%) whereas 1 CRF01_AE variant diverged significantly from the others (median distance, 10.7%; range, 10.1 to 11.8%). One subtype B virus envelope was typical of United States/European strains whereas the other appeared to be related to Thai subtype B' variants. These results reflect the independent introduction of multiple HIV-1 strains into West Papua, with the rapid spread in the majority of infected patients tested of a single strain of HIV-1E (CRF01_AE).


Assuntos
Variação Genética , Infecções por HIV/transmissão , Infecções por HIV/virologia , HIV-1/classificação , Adolescente , Adulto , DNA Viral/análise , DNA Viral/genética , Feminino , Infecções por HIV/epidemiologia , HIV-1/genética , Análise Heteroduplex , Humanos , Indonésia/epidemiologia , Masculino , Filogenia , Reação em Cadeia da Polimerase , Reação em Cadeia da Polimerase Via Transcriptase Reversa
5.
Ann Surg Oncol ; 7(5): 361-6, 2000 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10864344

RESUMO

BACKGROUND: Selective sentinel lymph node (SLN) dissection can spare about 80% of patients with primary melanoma from radical lymph node dissection. This procedure identifies the SLN either visually by injecting isosulfan blue dye around the primary melanoma site or by handheld gamma probe after radiocolloid injection. METHODS: During selective SLN mapping, 1 to 5 ml of isosulfan blue was injected intradermally around the primary melanoma. From November 1993, to August 1998, 406 patients underwent intraoperative lymphatic mapping with the use of both isosulfan blue and radiocolloid injection. Three cases of selective SLN dissection, in which adverse reactions to isosulfan blue occurred, were reviewed. RESULTS: We report three cases of anaphylaxis after intradermal injection with isosulfan blue of 406 patients who underwent intraoperative lymphatic mapping by using the procedure as described above. The three cases we report vary in severity from treatable hypotension with urticaria and erythema to severe cardiovascular collapse with or without bronchospasm or urticaria. CONCLUSIONS: In our series, the incidence of anaphylaxis to isosulfan blue was approximately 1%. Anaphylaxis can be fatal if not recognized and treated rapidly. Operating room personnel who participate in intraoperative lymphatic mapping where isosulfan blue is used must be aware of the potential consequences and be prepared to treat anaphylaxis.


Assuntos
Anafilaxia/induzido quimicamente , Excisão de Linfonodo , Melanoma/cirurgia , Corantes de Rosanilina/efeitos adversos , Neoplasias Cutâneas/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Injeções Intradérmicas , Masculino , Melanoma/patologia , Estadiamento de Neoplasias , Neoplasias Cutâneas/patologia
6.
Am J Obstet Gynecol ; 178(5): 987-90, 1998 May.
Artigo em Inglês | MEDLINE | ID: mdl-9609572

RESUMO

OBJECTIVE: We sought to determine potential risk factors for upper genital tract inflammation in women with cervical Neisseria gonorrhoeae, Chlamydia trachomatis, or bacterial vaginosis. STUDY DESIGN: In a case-controlled study we compared 111 women with cervical Neisseria gonorrhoeae, Chlamydia trachomatis, or bacterial vaginosis (the study group) with 24 women who had negative tests for each of these infections (the control group). We evaluated potential risk factors for upper genital tract inflammation by use of bivariate and then logistic regression analysis. RESULTS: We found plasma cell endometritis in 53 of 111 women in the study group and 3 of 24 controls (odds ratio = 6.4, 95% confidence interval 1.7 to 35.0). On logistic regression, the study group women who were in the proliferative phase had increased likelihood of plasma cell endometritis (odds ratio = 4.5, 95% confidence interval 1.6 to 12.4). CONCLUSION: The proliferative phase of the menstrual cycle seems to be the primary risk factor for ascending infection by organisms associated with pelvic inflammatory disease. This may be due to a hormonal effect or to the loss of the cervical barrier during menstruation.


Assuntos
Colo do Útero/microbiologia , Chlamydia trachomatis/isolamento & purificação , Endometrite/microbiologia , Neisseria gonorrhoeae/isolamento & purificação , Plasmócitos , Adolescente , Adulto , População Negra , Estudos de Casos e Controles , Infecções por Chlamydia/complicações , Infecções por Chlamydia/microbiologia , Endometrite/epidemiologia , Endometrite/patologia , Feminino , Gonorreia/complicações , Gonorreia/microbiologia , Humanos , Ciclo Menstrual , Pessoa de Meia-Idade , Fatores de Risco , Irrigação Terapêutica , Vaginose Bacteriana
7.
Am J Epidemiol ; 146(8): 655-61, 1997 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-9345119

RESUMO

Eighteen transfusion recipients infected with human immunodeficiency virus type 1 (HIV-1) were followed prospectively with their 19 long-term sexual partners from 1986 to 1993 in California, Florida, and New York. Follow-up included clinical, behavioral, immunologic, serologic, and virologic evaluations. Two partners were already infected when seen 18 and 34 months after sexual contact began following the infectious transfusion. Four of 17 initially seronegative partners seroconverted during 23 person-years of observation. The recipient's clinical status, mononuclear cell subset variations, and time trend in CD4+ counts had no association with transmission. Individual plasma HIV-1 ribonucleic acid (RNA) loads were stable during observation, and sexual transmission was not attributable to an upward trend or transient burst in viremia. However, recipients who transmitted HIV-1 to their sexual partners had higher mean viral RNA levels than did nontransmitting recipients (4.3 vs. 3.6 log10 copies/ml; p = 0.05). Although this series was small, the prospective observations suggest that viral load was the only characteristic in the recipient that contributed to heterosexual infectiousness.


Assuntos
Síndrome de Imunodeficiência Adquirida/transmissão , Transmissão de Doença Infecciosa , HIV-1/isolamento & purificação , Parceiros Sexuais , Reação Transfusional , Carga Viral , Síndrome de Imunodeficiência Adquirida/diagnóstico , Síndrome de Imunodeficiência Adquirida/imunologia , Adulto , Idoso , Contagem de Linfócito CD4 , California/epidemiologia , Feminino , Florida/epidemiologia , Seguimentos , Proteína do Núcleo p24 do HIV/análise , Heterossexualidade/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , New York/epidemiologia , Estudos Prospectivos , Testes Sorológicos , Comportamento Sexual/estatística & dados numéricos
8.
Am J Epidemiol ; 145(2): 164-74, 1997 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-9006313

RESUMO

The authors used multivariate repeated-measures transition models to identify risk factors for two oral lesions related to human immunodeficiency virus (HIV)-candidiasis and hairy leukoplakia-in 152 HIV-infected blood transfusion recipients and hemophiliacs. Subjects were examined for occurrences of these lesions every 6 months from July 1985 through March 1993, yielding 1,076 study visits. It was found that, after adjustment for the CD4:CD8 T-lymphocyte ratio, patients with a history of candidiasis in the previous 18 months were at high risk of lesion recurrence. This risk increased with the number of prior episodes and with the recency of the episode(s). A history of hairy leukoplakia was less predictive of persistence of that lesion after adjustment for significant risk factors (including candidiasis and use of antifungal agents at the current examination, a low CD4:CD8 cell ratio, and age less than 40 years). The authors also found a high coprevalence of candidiasis and hairy leukoplakia in these subjects. These results suggest that HIV-infected patients with oral candidiasis should be carefully monitored for subsequent episodes over the next 12-18 months, and patients with either oral candidiasis or hairy leukoplakia and a low CD4:CD8 cell ratio should be carefully examined for the other type of lesion as well.


Assuntos
Candidíase Bucal/etiologia , Infecções por HIV/complicações , Hemofilia A/terapia , Leucoplasia Oral/etiologia , Reação Transfusional , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Contagem de Linfócito CD4 , Candidíase Bucal/epidemiologia , Candidíase Bucal/imunologia , Criança , Pré-Escolar , Estudos Transversais , Feminino , Infecções por HIV/etiologia , Infecções por HIV/imunologia , Hemofilia A/imunologia , Humanos , Incidência , Lactente , Leucoplasia Oral/epidemiologia , Masculino , Pessoa de Meia-Idade , Fatores de Risco , São Francisco/epidemiologia
9.
Am J Ophthalmol ; 122(4): 526-34, 1996 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-8862050

RESUMO

PURPOSE: Current screening of potential corneal donors for human immunodeficiency virus type 1 (HIV-1) involves serologic detection of antibodies to the virus. However, this approach cannot detect infection during the seronegative window period of the disease. We therefore evaluated the polymerase chain reaction (PCR) assay for viral nucleic acid as a possible alternative to screening cadaveric blood for HIV-1. METHODS: Blood specimens from cadavers diagnosed at autopsy with acquired immunodeficiency syndrome (AIDS) (n = 21), at high risk for HIV-1 infection (n = 47), and at no known risk (n = 350) were screened by PCR for HIV-1 proviral DNA and human leukocyte antigen (HLA)-DQ alpha sequences, and for HIV antibodies. RESULTS: All AIDS group samples were seropositive; of these, 18 (86%) and 20 (95%) of 21 were positive for HIV by PCR of proteinase K- and Chelex-extracted pellets, respectively. The seropositive samples negative by PCR testing were shown to inhibit PCR amplification. Nine (19%) of 47 high-risk specimens were HIV-positive. The no-known-risk group yielded negative results. The overall sensitivities for PCR in the proteinase K- and Chelex-treated groups were 90% and 97%, respectively, compared with Western blot reactivity. If PCR-inhibitory samples and HLA-DQ alpha-negative samples had been eliminated, sensitivity would have been 100%. Specificity was 100% for each group. CONCLUSIONS: Screening cadaveric blood by PCR may be feasible, but further refinement of the assay and blood specimen collection practices will be necessary for it to become routine. Future studies should focus on optimizing specimen procurement and preparation to reduce or eliminate specimens that inhibit PCR.


Assuntos
Córnea , Infecções Oculares Virais/diagnóstico , Infecções por HIV/diagnóstico , HIV-1 , Hibridização de Ácido Nucleico/métodos , Reação em Cadeia da Polimerase/métodos , Doadores de Tecidos , Sorodiagnóstico da AIDS , Síndrome de Imunodeficiência Adquirida/diagnóstico , Western Blotting , Colorimetria , Primers do DNA/química , DNA Viral/análise , Ensaio de Imunoadsorção Enzimática , Anticorpos Anti-HIV/análise , Soropositividade para HIV/diagnóstico , HIV-1/genética , HIV-1/imunologia , Antígenos HLA-DQ/análise , Cadeias alfa de HLA-DQ , Humanos , Programas de Rastreamento , Sensibilidade e Especificidade
10.
Altern Ther Health Med ; 2(4): 42-6, 1996 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-8795921

RESUMO

This study was designed to determine whether a standardized program of complementary therapies combined with appropriate standard medical care would have a measurable influence on the course of HIV disease when compared with data from other groups. All 10 participants began this study in 1988 with a diagnosis of asymptomatic HIV-positive. They received a 1-month orientation to the program and were then seen at 3-month intervals for follow-up data collection. Data were compared with two groups that had not been trained in the comprehensive treatment program. After 30 months, the mean CD4 cell count of our study group declined by 4% (406 to 391). The mean red and white blood cell counts remained stable at 96% and 105% of baseline, respectively. The mean CD8 cell number rose by 28%. No mortality occurred. One opportunistic infection (pneumocystis carinii pneumonia) developed in the study group. No other significant symptoms, serious infections, or disease progression developed in the other 9 participants during the study period. At long-term follow-up 8 of the 10 study participants remained alive 7 years after beginning the study protocol. These data suggest that patients who are presented counseling on good nutrition, vitamin supplementation, stress reduction, exercising, and involving oneself in community potentially can continue to live asymptomatic lives that in quality and length exceed the lives of those HIV-positive individuals not presented such counseling.


Assuntos
Terapias Complementares , Soropositividade para HIV/terapia , Adulto , Protocolos Clínicos , Humanos , Pessoa de Meia-Idade , Projetos Piloto , Resultado do Tratamento
11.
Am J Clin Pathol ; 104(6): 673-9, 1995 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-8526212

RESUMO

To determine the best method for detecting HCV infection in immunosuppressed patients, stored frozen serum from 101 liver transplant recipients was tested for hepatitis C virus. Each sample was tested by four assays. HCV RNA was detected by both polymerase chain reaction (PCR) and branched DNA signal amplification. Antibody to HCV was determined using second-generation enzyme-linked immunoassay (EIA) and recombinant immunoblot assay. Forty one transplant recipients met the working definition for true positives of HCV infection. Of these "true positives," 98% were positive by HCV RNA PCR assay, 88% by b-DNA signal amplification assay, 88% by anti-HCV EIA, and 63% demonstrated two or more reactive bands on recombinant immunoblot. Five of 57 (9%) HCV-antibody negative recipients had HCV RNA detected by both methods. Of 44 HCV enzyme-linked immunoassay (EIA) repeatedly reactive samples, the recombinant immunoblot was negative in 2 and indeterminate in 13. HCV RNA was present in 9 of 13 recombinant immunoblot indeterminate sera. Nine EIA repeatedly reactive sera were negative by both tests for HCV RNA. In liver transplant recipients, HCV infection is best determined by measurement of HCV RNA. Antibody formation may be delayed or suppressed in a minority of patients despite > 10(9) equivalents/L (> 10(6)/mL) of HCV RNA in serum. Recombinant immunoblots with a single reactive band pattern often indicate HCV infection in immunosuppressed patients.


Assuntos
Hepacivirus/genética , Anticorpos Anti-Hepatite C/sangue , Hepatite C/diagnóstico , Transplante de Fígado , Complicações Pós-Operatórias/diagnóstico , RNA Viral/sangue , Hepatite C/sangue , Hepatite C/imunologia , Hepatite C/virologia , Humanos , Immunoblotting , Técnicas Imunoenzimáticas , Hibridização de Ácido Nucleico , Reação em Cadeia da Polimerase , Complicações Pós-Operatórias/sangue , Complicações Pós-Operatórias/imunologia , Complicações Pós-Operatórias/virologia , Fatores de Tempo
12.
Sex Transm Dis ; 22(6): 335-41, 1995.
Artigo em Inglês | MEDLINE | ID: mdl-8578403

RESUMO

BACKGROUND: The majority of women with tubal damage do not have a history of acute pelvic inflammatory disease. The prevalence of upper genital tract inflammation was evaluated in women deemed not to have pelvic inflammatory disease by common diagnostic criteria. GOAL OF THIS STUDY: To compare clinical signs and laboratory tests used to diagnose pelvic inflammatory disease with endometrial biopsy histopathology. STUDY DESIGN: Endometrial biopsy and commonly used physical and laboratory tests were performed on 52 women with pelvic tenderness, 51 with vaginosis or cervicitis, and 22 control subjects who had no evidence of infection with Neisseria gonorrhoeae or Chlamydia trachomatis and who tested negative for bacterial vaginosis using vaginal swab Gram's stain. RESULTS: Thirty-six of 52 patients (69%) with pelvic tenderness, compared with 22 of 51 patients (43%) with vaginosis or cervicitis and two of 22 control subjects (9%), had plasma cell endometritis. The Centers for Disease Control and Prevention minimal diagnostic criteria for pelvic inflammatory disease had a sensitivity of 33% for plasma cell endometritis. CONCLUSIONS: The clinical diagnosis of pelvic inflammatory disease using published criteria correlates poorly with plasma cell endometritis.


Assuntos
Infecções por Chlamydia/complicações , Chlamydia trachomatis , Endometrite/patologia , Gonorreia/complicações , Doença Inflamatória Pélvica/patologia , Plasmócitos/patologia , Adolescente , Adulto , Biópsia , Estudos de Casos e Controles , Endometrite/microbiologia , Feminino , Humanos , Doença Inflamatória Pélvica/microbiologia , Sensibilidade e Especificidade , Cervicite Uterina/patologia , Vaginose Bacteriana/patologia
13.
J Infect Dis ; 172(3): 648-55, 1995 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-7658055

RESUMO

Age differences among risk groups may account for rate differences in progression of human immunodeficiency virus type 1 (HIV-1) infection to AIDS. Institutions in 6 US cities used a common protocol to study infected homosexual blood donors, recipients of blood components, and factor VIII-treated hemophiliacs. Follow-up was every 6 months. Actuarial risk for AIDS 8 years after infection was 51% among blood recipients, 36% among homosexual donors, and 24% among hemophiliacs. Significant risk group differences were explained by age differences among cohorts (medians of 61, 29, and 22 years, respectively). When age was adjusted for and both CD4 cell value and zidovudine treatment were used as time-dependent covariates, homosexual donors had more rapid progression than the other groups. Omitting Kaposi's sarcoma as an AIDS-defining condition removed any significant differences among risk groups except CD4 cell count and age. Thus, major factors in AIDS progression are age-related.


Assuntos
Síndrome de Imunodeficiência Adquirida/fisiopatologia , Doadores de Sangue , Infecções por HIV/epidemiologia , HIV-1 , Síndrome de Imunodeficiência Adquirida/epidemiologia , Adolescente , Adulto , Fatores Etários , Idoso , Transfusão de Componentes Sanguíneos , Feminino , Seguimentos , Infecções por HIV/fisiopatologia , Infecções por HIV/transmissão , Hemofilia A/terapia , Homossexualidade Masculina , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Fatores de Tempo
14.
Blood ; 85(5): 1207-14, 1995 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-7858251

RESUMO

Donor leukocytes in therapeutic blood components are implicated in transfusion-related complications ranging from alloimmunization to graft-versus-host disease (GVHD) to viral transmission and reactivation. To further characterize the kinetics of donor leukocyte clearance after allogeneic transfusion, we developed allele-specific polymerase chain reaction (PCR) assays directed at a single-copy Y chromosome gene and HLA class II alleles. These assays enable sensitive detection and quantitation of donor leukocytes at concentrations ranging from one cell to greater than 1,000 cells per 125 microL of recipient blood. When applied to serial samples from five consecutive orthopedic surgery patients who met study criteria, we observed 99.9% clearance of donor leukocytes over the initial 2 days posttransfusion, followed by a transient, 1-log increase in circulating donor leukocytes on days 3 to 5. This phenomenon was reproduced in a canine transfusion model, where the transient donor leukocyte expansion phase was prevented by gamma irradiation of donor blood, and was not observed after transfusions into alloimmunized dogs. We hypothesize that this transient increase in circulating allogeneic donor cells represents one arm of an in vivo mixed lymphocyte reaction, with activated donor T lymphocytes proliferating in an abortive GVHD reaction to HLA-incompatible recipient cells. Further investigation of this phenomenon should provide insight into the mechanisms involved in donor-recipient leukocyte interactions posttransfusion and the relationship of these interactions to leukocyte-induced complications.


Assuntos
Transfusão de Sangue , Sobrevivência de Enxerto , Contagem de Leucócitos , Reação em Cadeia da Polimerase , Animais , Sequência de Bases , Divisão Celular , Sobrevivência Celular , Cães , Transfusão de Eritrócitos , Eritrócitos/efeitos da radiação , Feminino , Genes MHC da Classe II , Reação Enxerto-Hospedeiro , Humanos , Imunização , Imunocompetência , Ativação Linfocitária , Masculino , Dados de Sequência Molecular , Reprodutibilidade dos Testes , Cromossomo Y
15.
Transfusion ; 35(2): 145-9, 1995 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-7825210

RESUMO

BACKGROUND: Donor white cells (WBCs) in blood transfusions are responsible for complications in recipients, including alloimmunization, graft-versus-host disease (GVHD), and virus transmission and reactivation. The recent use of sequence-specific polymerase chain reaction assays to monitor the kinetics of clearance of donor WBCs in transfused humans and dogs found transient recirculation of donor lymphocytes on Days 3 to 5 after transfusion; this presumably reflected an abortive GVHD reaction to major histocompatibility complex-incompatible recipient cells, after which donor WBCs were cleared to undetectable levels. STUDY DESIGN AND METHODS: This study sought to develop a murine model to further characterize the kinetics and major histocompatibility complex restriction of donor WBC clearance. A sensitive murine Y chromosome-specific polymerase chain reaction assay was developed and applied to serial blood samples collected after transfusions of allogeneic blood to naive inbred, primed inbred, and outbred mice, as well as after transfusions of gamma-radiated blood to naive inbred mice. RESULTS: In inbred mice, both naive and primed to the allogeneic blood donor, transfused WBCs were not cleared to undetectable levels for more than 1 month after transfusion. Transfused outbred mice also showed prolonged donor WBC survival, although at lower levels than inbred mice. There was no evidence of GVHD in either inbred or outbred mice, and gamma radiation had no significant impact on donor WBC persistence. CONCLUSION: These results contrast with the rapid clearance of donor WBCs observed in humans and dogs. The immunologic basis for this discrepancy remains unclear. Caution should be exercised in any extrapolation to humans of conclusions drawn from results in transfused mice.


Assuntos
Transfusão de Sangue , Leucócitos/metabolismo , Animais , Sequência de Bases , Feminino , Cinética , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Endogâmicos C57BL , Dados de Sequência Molecular
16.
Blood ; 84(5): 1666-71, 1994 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-7915149

RESUMO

Low- and intermediate-purity clotting-factor therapies are believed to accelerate human immunodeficiency virus (HIV) progression in hemophiliacs through adverse immune effects of the other plasma proteins in the preparations. To investigate this postulate, we evaluated data from six clinical centers that observed persons with congenital factor deficiencies at 6-month intervals. The present analysis is based on HIV-infected subjects who received intermediate purity factor VIII or factor IX concentrates, or cryoprecipitate. For long-term outcome, we classified 374 subjects by the type and amount of treatment during our first year of observation, and determined the subsequent rate of progression to a CD4 count less than 200 cells/microL. A second analysis of this group used a repeated-measures, random-effect model that allowed for individual differences in CD4 decline. Finally, we compared short-term rates of change in CD4 count in each treatment interval of 525 subjects with the type and amount of factor therapy received in the same interval. There was no overall or dose-related deleterious effect of any form of treatment on CD4 trend. The CD4 decrease was less when cryoprecipitate was administered alone or combined with concentrate, but not significantly so. Our results counter the assertion that low- and intermediate-purity products accelerate the rate of CD4 decrease in HIV-1-infected hemophiliacs.


Assuntos
Síndrome de Imunodeficiência Adquirida/etiologia , Transtornos da Coagulação Sanguínea/complicações , Transtornos da Coagulação Sanguínea/terapia , Antígenos CD4/sangue , Linfócitos T CD4-Positivos/imunologia , Fator IX/uso terapêutico , Fator VIII/uso terapêutico , Soropositividade para HIV , Hemofilia A/terapia , Hemofilia B/terapia , Síndrome de Imunodeficiência Adquirida/epidemiologia , Síndrome de Imunodeficiência Adquirida/imunologia , Fator IX/normas , Fator VIII/normas , Seguimentos , HIV-1 , Humanos , Análise de Sobrevida , Fatores de Tempo
17.
J Acquir Immune Defic Syndr (1988) ; 7(7): 705-10, 1994 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-8207648

RESUMO

Using lookback procedures and other methods, we identified and then prospectively followed human immunodeficiency virus type 1 (HIV-1)-infected transfusion recipients and their sex partners to determine AIDS incidence and risks of heterosexual transmission of HIV-1. At enrollment, 7 of 32 (21.9%) female partners of male recipients were themselves infected with HIV-1, as compared with none of 14 male partners of female recipients (p = 0.08). No additional episodes of transmission were observed. The prevalence of advanced immunodeficiency at enrollment was similar in male and female recipients. Male recipients with advanced immunodeficiency (CD4+ lymphocyte count < or = 0.20 x 10(9)/L or a history of clinical AIDS) at enrollment were more likely to have infected their female partners (odds ratio = 7.9; p = 0.03) than men with neither condition. Similarly, AIDS-free survival, as estimated by the product-limit method, was lower among male transmitters than among male nontransmitters (p = 0.01). Transmission was not associated with frequency of unprotected vaginal intercourse. Our data suggest that HIV-1-infected men who develop immunodeficiency rapidly are more likely to infect their sex partners and that the greater efficiency of male-to-female HIV-1 transmission is not explained by a greater number of sexual contacts or more advanced immunodeficiency in index subjects.


Assuntos
Transfusão de Sangue , Infecções por HIV/transmissão , HIV-1 , Comportamento Sexual , Parceiros Sexuais , Adulto , Fatores Etários , Preservativos , Fatores de Confusão Epidemiológicos , Feminino , Seguimentos , Infecções por HIV/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Estudos Prospectivos , Estudos Retrospectivos , Fatores de Tempo
18.
Transfusion ; 34(6): 478-83, 1994 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-8023388

RESUMO

BACKGROUND: The incidence of transfusion transmission of human T-lymphotropic virus type I (HTLV-I) and HTLV type II (HTLV-II) has not been compared directly or to that of human immunodeficiency virus type 1 (HIV-1). The effects of refrigerator storage of the blood component on infectivity of the viruses needs definition. STUDY DESIGN AND METHODS: The circumstances influencing the transmission of HTLV-I, HTLV-II, and HIV-1 via blood of donors whose sera were stored in a repository and who were retrospectively documented as having been infected at blood donation were examined. Confirmation and typing of anti-HTLV positivity in donors and recipients used polymerase chain reaction, supplemented by specific peptide testing. RESULTS: Overall, 27 percent (26/95) of the recipients of blood components from anti-HTLV-I- and -II-positive donors became infected (9 with HTLV-I and 17 with HTLV-II). No recipients of acellular blood components became infected with HTLV-I or -II. There was no probable transmission by components stored > 10 days. The rates of transmission for both viruses were similar: 0 to 5 days' storage, 17 (74%) of 23; 6 to 10 days, 8 (44%) of 18; and 11 to 14, 0 (0%) of 10 (trend, p = 0.0002). In comparison, 89 percent (112/126) of the recipients of anti-HIV-1-positive blood were infected regardless of component type, and no effect on transmission occurred with storage for < 26 days. CONCLUSION: Transfusion-transmitted HTLV-I and -II are similar. The data suggest that a donor's lymphocytes become noninfectious when they lose the ability to be activated or to proliferate.


Assuntos
Síndrome de Imunodeficiência Adquirida/transmissão , Doadores de Sangue , Transfusão de Sangue , HIV-1 , Infecções por HTLV-I/transmissão , Infecções por HTLV-II/transmissão , Transfusão de Componentes Sanguíneos , DNA Viral/análise , Anticorpos Anti-HIV/sangue , Anticorpos Anti-HTLV-I/sangue , Anticorpos Anti-HTLV-II/sangue , Vírus Linfotrópico T Tipo 1 Humano/genética , Vírus Linfotrópico T Tipo 2 Humano/genética , Humanos , Reação em Cadeia da Polimerase , Fatores de Tempo
19.
Vox Sang ; 67 Suppl 1: 24-8, 1994.
Artigo em Inglês | MEDLINE | ID: mdl-8091731

RESUMO

To address the question of HAV prevalence and seroconversion in relation to clotting factor concentrates, we assayed an early serum for 339 hemophiliacs followed every 6 months by the Transfusion Safety Study in the period from mid-1985 until mid-1992. We found 58.4% positive around entry, with an age-specific prevalence that did not vary with age. In comparison to rates for anti-HIV-negative blood donors, they were significantly higher. Based on testing of subsequent sera, 11 hemophiliacs (7.8% of 141 susceptibles) changed their anti-HAV status from negative to positive. In 9 instances, positivity immediately followed the first dose of intravenous immune globulin. A possible seroconversion followed treatment with blood components, and a possible seroconversion followed intermediate-purity, solvent/detergent(SD)-treated factor VIII concentrate. Neither of these 2 patients was anti-HAV IgM positive, so that passively transferred antibody is possible. The high prevalence among hemophiliacs at entry must be further investigated by determining the expected background rate in a US population similar to the hemophilia patients, and by comparing anti-HAV prevalence associated with SD-treated and heat-inactivated concentrates.


Assuntos
Transfusão de Componentes Sanguíneos/efeitos adversos , Hepatite A/transmissão , Adolescente , Adulto , Fatores Etários , Criança , Pré-Escolar , Infecções por HIV/complicações , Hepatite A/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Estados Unidos
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