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1.
Eur Ann Otorhinolaryngol Head Neck Dis ; 141(1): 13-19, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37414619

RESUMO

OBJECTIVES: To assess the perception of environmental issues in head-and-neck surgery rooms and to compare the perception of priority environmental issues according to health professionals' age-group, initial training and role in the operating room. METHODS: A multicenter descriptive observational study was conducted in January 2023, contacting health professionals working in the operating rooms of 5 French centers. An anonymous online questionnaire explored the perception of environmental issues according to age, initial training and role in the operating room. RESULTS: Sixty-nine percent of the 387 persons contacted (267/387) completed the entire questionnaire. Ninety-six percent of respondents (256/267) said that they felt concerned about climate change issues and 85% (226/267) felt well-informed. Ninety-three percent (251/267) were willing to make environmental efforts in the operating room. Priorities were to improve waste recycling and reduce the amount of waste for 95% (251/267) and 97% (259/267) of respondents respectively. Those under 40 years of age tended to feel better informed about climate issues (76% [75/99] versus 60% [100/168]; P=0.010). CONCLUSION: Our study showed that the vast majority of health professionals working in head-and-neck surgery rooms in France felt concerned about climate issues and were ready to make an effort. Nevertheless, it seems important to carry out information campaigns dedicated to these environmental issues.


Assuntos
Salas Cirúrgicas , Reciclagem , Humanos , Inquéritos e Questionários , França , Percepção
2.
Eur Ann Otorhinolaryngol Head Neck Dis ; 141(2): 61-67, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38081760

RESUMO

OBJECTIVES: To analyze the perception of endoscopic endonasal surgery training by French otolaryngology residents. MATERIAL AND METHODS: A multicenter retrospective observational study was conducted from March to April 2023. Otolaryngology residents from 7 French regions filled out a 27-item questionnaire on their training in endoscopic endonasal surgery. RESULTS: Out of 283 residents contacted, 126 (45%) filled out the questionnaire. Seventy-four (59%) had already partially or completely performed the surgeries specified in their diploma course. The level of mastery of the main steps of endonasal surgery and the level of autonomy were higher in the consolidation stage group than in the basic and advanced stages. Seventy residents (56%) felt they had gaps in their level of training. To improve training, 94 (75%) wished for more dissection sessions, surgical skills assessments each semester and simulation sessions. Eighty-nine (71%) felt they needed to find their own teaching aids and other methods to complete their training. One hundred and thirteen (90%) felt that the lack of funding available for congresses and training courses was detrimental. CONCLUSION: This study highlighted the overall satisfaction of residents with their training in endoscopic endonasal surgery. They expressed a desire for more dissection, simulation and evaluation.


Assuntos
Internato e Residência , Otolaringologia , Humanos , Motivação , Endoscopia/métodos , Nariz , Otolaringologia/educação , Percepção , Competência Clínica
3.
Eur Ann Otorhinolaryngol Head Neck Dis ; 141(2): 77-80, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37770300

RESUMO

OBJECTIVES: To evaluate the use of EQUATOR guidelines in scientific articles published in the European Annals of Otorhinolaryngology, Head and Neck Diseases between 2020 and 2022. The aim was also to translate the most widely used guidelines into French, in order to promote their dissemination and use in otorhinolaryngology and head and neck surgery. METHOD: The SWiM guidelines were used. Articles published in the European Annals of Otorhinolaryngology, Head and Neck Diseases between January 1, 2020 and December 31, 2022 were retrieved from the PubMed bibliographic database. Editorials, Letters to the Editor and "What is your diagnosis" articles that did not meet any EQUATOR guidelines were excluded from the analysis. RESULTS: Of the 149 eligible published articles, 21.5% (n=32/149) mentioned use of such a guideline. Guideline use by the European Annals of Otorhinolaryngology, Head and Neck Diseases author community progressed from 0% in 2020 to 8% in 2021 and 63% in 2022. CONCLUSION: The analysis carried out in this article and the availability of the French version of the seven EQUATOR guidelines most widely used in the European Annals of Otorhinolaryngology Head & Neck Diseases could stimulate application and compliance by authors who submit their work to the journal of the French and international French-speaking societies of otorhinolaryngology.


Assuntos
Otolaringologia , Humanos
4.
Eur Ann Otorhinolaryngol Head Neck Dis ; 140(6): 305-308, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37980265

RESUMO

INTRODUCTION: We illustrate the diagnostic method for chronic nasal dysfunction by an observation in which the clinical history was compared to preoperative responses on the DyNaChron self-administered questionnaire, with ENT interpretation of the sinonasal CT scan preceding and guiding nasal endoscopy. CASE REPORT: The initial suspicion of rhinitis medicamentosa was transformed by the radiological and endoscopic findings of chronic respiratory rhinitis signs. Prick tests showing sensitivity to dust mites then suggested an allergic origin of the mucosal inflammation, which affected neither the olfactory nose nor the paranasal sinuses. A septal deviation hampering visualization of the right ethmoidal reliefs completed the clinical picture. Inferior turbinate hypertrophy secondary to allergic inflammation could have been aggravated by prolonged daily use of nasal vasoconstrictors. Failure of medical treatment combining nasal lavage, topical corticosteroids and an attempt at weaning led to effective medical and surgical management combining septoplasty, bilateral inferior turbinoplasty, continuation of topical corticosteroids and initiation of allergen immunotherapy. In addition to complete relief of nasal obstruction and abandonment of nasal vasoconstrictors, improved sense of smell completed the restoration of nasal comfort. DISCUSSION: It is helpful to conceive the nose as being anatomically and pathophysiologically a triple organ and to evaluate therapy in terms of improvement in each symptom.


Assuntos
Pólipos Nasais , Rinite , Sinusite , Humanos , Rinite/diagnóstico , Rinite/etiologia , Rinite/terapia , Sinusite/complicações , Pólipos Nasais/complicações , Pólipos Nasais/diagnóstico , Pólipos Nasais/terapia , Descongestionantes Nasais/uso terapêutico , Endoscopia , Corticosteroides/uso terapêutico , Inflamação/complicações , Doença Crônica
5.
Eur Ann Otorhinolaryngol Head Neck Dis ; 140(6): 279-287, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37867008

RESUMO

BACKGROUND: There is no consensus on the role of surgery in the treatment of chronic rhinitis (CR). Should it be considered when nasal symptoms are not controlled by medical treatment? Various targets (turbinates and secretory nerves) and techniques (surgical, laser, cryotherapy, radiofrequency and phototherapy) have been reported, but benefit varies between reports. The aim of this systematic review and meta-analysis was to evaluate results of surgical and instrumental procedures in CR care. METHODS: Two systematic reviews of the US National Library of Medicine, Cochrane Library, Web of Science and Embase databases were conducted in October 15, 2021 (registration numbers CRD42021284257 and CRD42021295227). A database watch was performed until submission of the manuscript. The review focuses on total nasal symptom score (TNSS) and quality of life (QoL) after treatment. All controlled studies reporting nasal surgery/instrumental procedures in adult patients with CR were included. RESULTS: The database search yielded a total of 5628 articles; after eligibility screening, 2091 patients were included from 21 studies. QoL results favored surgery/instrumental procedures over medical treatment (SMD -1.27; 95% CI [-2.38; -0.16]; I2=97%), as did TNSS (SMD -1.40; 95% CI [-2.30; -0.50]; I2=98%). The small number of studies and their heterogeneity did not allow meta-regression to be performed. CONCLUSION: This systematic review supports the use of surgical/instrumental procedures to improve nasal symptom score and QoL of adult patients with CR poorly controlled by medical treatment.


Assuntos
Rinite Alérgica , Rinite , Adulto , Humanos , Rinite/cirurgia , Qualidade de Vida , Projetos de Pesquisa , Nariz
6.
Eur Ann Otorhinolaryngol Head Neck Dis ; 140(6): 271-278, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37838600

RESUMO

Diagnosis in rhinology is currently based on the concept of inflammation (chronic rhinosinusitis [CRS]) or the clinical concept of chronic nasal dysfunction (CND). The complementarity between these two approaches can be discussed by a critical review of the literature structured by the analysis of the fundamental and diagnostic bases and the therapeutic implications linked to each. The concept of CRS is based on the anatomical continuity of the nasal and sinus respiratory mucosa and molecular biology data, seeking to analyze the mechanisms of chronic inflammation and to identify proteins and biomarkers involved in the different supposed endotypes of chronic inflammation of this mucosa. The concept of CND seeks to analyze medical, instrumental or surgical diagnostic and therapeutic strategies, taking account of both inflammatory and non-inflammatory causes impacting the anatomy or physiology of each of the three noses (olfactory, respiratory and sinus) that make up the mid-face sinonasal organ of evolution-development (Evo-Devo) theory. Thus, the concept of CRS offers an endotypic approach, based on biological characterization of mucosal inflammation, while the concept of CND offers a compartmentalized phenotypic and pathophysiological approach to sinonasal diseases. The joint contribution of these two concepts in characterizing nasal functional pathology could in future improve the medical service provided to patients.


Assuntos
Pólipos Nasais , Rinite , Sinusite , Humanos , Rinite/diagnóstico , Rinite/terapia , Pólipos Nasais/diagnóstico , Inflamação , Sinusite/diagnóstico , Sinusite/terapia , Nariz , Doença Crônica
8.
Eur Ann Otorhinolaryngol Head Neck Dis ; 140(1): 13-18, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35803874

RESUMO

OBJECTIVE: To evaluate the impact of the first three waves of COVID-19 on the academic and surgical training of ENT and Head and Neck Surgery residents in France. MATERIAL AND METHODS: Observational, retrospective study. A 55-item survey of academic education and surgical training was sent to ENT residents in five major French regions (Île-de-France, Rhône-Alpes Auvergne, Occitanie, Grand Est, Grand Ouest) from August to October 2021. RESULTS: Eighty-nine out of 135 residents (66%) responded. Two-thirds considered that surgical training was more affected than academic education, with reductions evaluated of 50-75%, 25-50% and 0-25% for the first three waves, respectively. Residents in Île-de-France, Rhône-Alpes Auvergne and Grand Est were the most affected by the first wave (75-100% reduction in surgical activity, in parallel to increased admissions). Otology, rhinology and functional exploration were the most affected, whereas pediatrics and oncology were spared. Seventy-one of the 89 residents (79.7%) felt that the first wave impacted their career, while this proportion decreased to 39.3% and 44.9% for the second and third waves, respectively. CONCLUSION: The first wave of COVID-19, compared to the following two waves, severely impacted the surgical training of French ENT residents, especially in regions severely impacted by the pandemic, while academic education was relatively safeguarded by the implementation of e-learning alternatives.


Assuntos
COVID-19 , Internato e Residência , Otolaringologia , Humanos , Otolaringologia/educação , Pandemias/prevenção & controle , Estudos Retrospectivos , Inquéritos e Questionários
9.
Neurochirurgie ; 69(1): 101394, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36502879

RESUMO

BACKGROUND: Perivascular Epithelioid cell tumors (PEComa) are rare mesenchymal tumors. They generally occur in the gynecologic or digestive tract. The diagnosis of Central Nervous System PEComa is exceptional and challenging. CASE DESCRIPTION: We report the case of a 46-year-old woman, with no particular medical history, who presented a secondary amenorrhea and a slight hyperprolactinemia. She was diagnosed on MRI with a pituitary tumor showing spontaneous hypersignal in T1-weighted images. After failure of medical treatment with cabergoline, surgical resection was required due to progressive tumor growth. Macroscopic aspect and initial immunohistochemical features were in favor of a primitive hypophyseal melanocytoma. However, molecular and transcriptional study through targeted exome- and RNA-sequencing led to the exceptional diagnosis of pituitary Perivascular Epithelioid Cell Tumor (PEComa). Three-years of postoperative radio-clinical follow-up showed an asymptomatic non-evolutive small remnant. CONCLUSION: PEComa is an exceptional diagnosis among pituitary tumors. It should be evoked as a potential differential diagnosis in case of primitive melanocytic lesion of the pituitary gland. Specific molecular analysis is mandatory to confirm the diagnosis and exclude differential diagnosis.


Assuntos
Neoplasias de Células Epitelioides Perivasculares , Neoplasias Hipofisárias , Humanos , Feminino , Pessoa de Meia-Idade , Neoplasias Hipofisárias/diagnóstico , Neoplasias Hipofisárias/cirurgia , Neoplasias Hipofisárias/patologia , Células Epitelioides/patologia , Diagnóstico Diferencial , Hipófise/patologia , Neoplasias de Células Epitelioides Perivasculares/diagnóstico , Neoplasias de Células Epitelioides Perivasculares/cirurgia , Neoplasias de Células Epitelioides Perivasculares/patologia
10.
Eur Ann Otorhinolaryngol Head Neck Dis ; 139(1): 33-37, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33931331

RESUMO

The concept of ethmoidal sinuses composed of ethmoidal air cells does not appear to fit with the embryological origin of the ethmoid. Post-natal formation of the paranasal sinuses, as visualized by MRI, appears to be fundamentally different from the embryological development of the ethmoid sinus. These two organs also appear to have very distinct functions: paranasal sinuses play a role in respiration and sanitization of the respiratory tract, while the ethmoid sinus plays a role in olfaction. However, human acquisition of bipedalism resulted in ethmoidal compartmentalization into olfactory clefts lined by olfactory mucosa and the ethmoidal labyrinth formed by a meshwork of ethmoturbinals that have lost their olfactory mucosa. Ethmoturbinals are septa that increase the surface area of olfactory mucosa in mammalian olfactory chambers. Embryological development of the human ethmoid sinus can be seen as the result of curved stacking of ethmoturbinal septa forming passages. Surgically, these passages can be accessed via the middle, superior and supreme meati. An ethmoidectomy technique following the ethmoturbinal passages can therefore be described. This structure of the ethmoidal labyrinth is both useful and necessary for the teaching of ethmoidal surgery.


Assuntos
Seio Etmoidal , Seios Paranasais , Animais , Osso Etmoide/cirurgia , Seio Etmoidal/cirurgia , Humanos , Olfato
12.
Neurochirurgie ; 66(5): 383-390, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32777231

RESUMO

We report a case of malignant melanoma revealed by a metastasis to the pituitary gland. The tumor was misdiagnosed as a pituitary adenoma and aggressive transsphenoidal surgery was complicated by a cerebrospinal fluid fistula. Nine weeks later, the patient presented multiple leptomeningeal and brain metastases spreading from the sellar region. Regarding these observations, we conducted a systematic review of the literature in order to investigate clinicoradiological features that should lead clinicians to suspect pituitary metastasis and how it should impact the surgical management.


Assuntos
Adenoma/patologia , Melanoma/patologia , Neoplasias Hipofisárias/patologia , Adenoma/diagnóstico , Neoplasias Encefálicas/secundário , Erros de Diagnóstico , Evolução Fatal , Feminino , Humanos , Imageamento por Ressonância Magnética , Melanoma/diagnóstico , Pessoa de Meia-Idade , Neoplasias Hipofisárias/diagnóstico , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada
13.
Eur Ann Otorhinolaryngol Head Neck Dis ; 137(2): 117-121, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32114087

RESUMO

INTRODUCTION: The authors present the guidelines of the French Society of Otorhinolaryngology (SFORL) for clinical and radiological assessment of cystic neck lymphadenopathy of unknown primary in adults. Most cases concern head and neck carcinoma metastasis, often in the oropharyngeal area, or less frequently differentiated thyroid carcinoma or non-keratinizing nasopharyngeal carcinoma. METHODS: A multidisciplinary task force was commissioned to carry out a review of the literature on the etiological work-up in cystic neck lymphadenopathy in adults: clinical examination, conventional imaging (ultrasound, CT, MRI) and metabolic imaging. Guidelines were drafted based on the articles retrieved, and graded A, B, C or expert opinion according to decreasing level of evidence. RESULTS: Oriented clinical examination, cervical and thyroid ultrasound scan and contrast-enhanced neck and chest CT scan are recommended in the assessment of cystic neck lymphadenopathy of unknown primary in adult patients. PET-CT is recommended prior to panendoscopy, to identify the primary tumor. CONCLUSION: Clinical and radiological assessment is fundamental for etiologic diagnosis of cystic neck lymphadenopathy in adult patients, and should be completed by cytological examination before in initiating treatment.


Assuntos
Cistos/diagnóstico , Linfadenopatia/diagnóstico , Cistos/diagnóstico por imagem , Cistos/etiologia , Humanos , Linfadenopatia/diagnóstico por imagem , Linfadenopatia/etiologia , Pescoço
14.
Eur Ann Otorhinolaryngol Head Neck Dis ; 136(3): 185-192, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31005456

RESUMO

In adult cervicofacial pathology, carcinoma of unknown primary is defined as lymph-node metastasis the anatomic origin of which is not known at the time of initial management. It constitutes up to 5% of head and neck cancers. Presentation may suggest benign pathology, delaying and confusing oncologic treatment. Diagnostic strategy in cervical lymph node with suspicion of neoplasia requires exhaustive work-up to diagnose malignancy and, in 45% to 80% of cases, depending on the series, to identify the primary site. Histologic types comprise squamous cell carcinoma, thyroid carcinoma, adenocarcinoma, neuroendocrine carcinoma and undifferentiated carcinoma. Association is sometimes found with human papilloma virus or Epstein Barr virus, guiding treatment. The objective of the present study was to provide clinicians with the necessary diagnostic tools, based on the current state of clinical, imaging and pathologic knowledge, and to detail treatment options.


Assuntos
Adenocarcinoma/secundário , Carcinoma de Células Escamosas/secundário , Neoplasias de Cabeça e Pescoço/secundário , Neoplasias Primárias Desconhecidas/patologia , Adenocarcinoma/patologia , Adenocarcinoma/virologia , Adulto , Carcinoma Neuroendócrino/patologia , Carcinoma Neuroendócrino/secundário , Carcinoma Neuroendócrino/virologia , Carcinoma de Células Escamosas/patologia , Carcinoma de Células Escamosas/virologia , Neoplasias de Cabeça e Pescoço/patologia , Neoplasias de Cabeça e Pescoço/virologia , Herpesvirus Humano 4 , Humanos , Metástase Linfática , Neoplasias Nasofaríngeas/patologia , Neoplasias Nasofaríngeas/virologia , Pescoço , Neoplasias Orofaríngeas/patologia , Neoplasias Orofaríngeas/virologia , Papillomaviridae , Neoplasias da Glândula Tireoide/patologia , Neoplasias da Glândula Tireoide/virologia
15.
Eur Ann Otorhinolaryngol Head Neck Dis ; 136(2): 127-129, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30606653

RESUMO

INTRODUCTION: Lipomas are very common benign lumps that could be encountered in any part of the body but with limited proportion being present in the head and neck region. CASE SUMMARY: In this article, three different cases of symptomatic cervical lipomas were illustrated, with their different diagnostic as well as therapeutic approaches and will be discussed in light of medical literature. DISCUSSION: These cervical tumors tend to grow slowly giving variable signs that include dysphagia, dyspnea, dysphonia due to the mass effect of surrounding structures or can be present as simple as a cosmetic concern. Clinicians must bear in mind the malignant transformation of lipomas, which can be challenging to diagnose. With this article, authors will try to highlight the importance of maintaining a good communication between surgeons, pathologists and radiologists as an essential part of the medical management.


Assuntos
Neoplasias de Cabeça e Pescoço/complicações , Lipoma/complicações , Idoso de 80 Anos ou mais , Transtornos de Deglutição/etiologia , Neoplasias de Cabeça e Pescoço/diagnóstico por imagem , Humanos , Laringocele/diagnóstico por imagem , Laringocele/etiologia , Lipoma/diagnóstico por imagem , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Cervicalgia/etiologia , Tomografia Computadorizada por Raios X
16.
Eur Ann Otorhinolaryngol Head Neck Dis ; 136(2): 131-134, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30366871

RESUMO

Pituitary surgery is performed via a transsphenoidal approach in the vast majority of cases according to various methods that have changed over the years. A microscopic transseptal approach via a sublabial mucosal incision or a nasal mucosal incision has also been extensively used. An endoscopic transnasal approach was first described in the 1990's, followed by the concept of a microscopic transseptal approach and an endoscopic strictly endonasal approach. We use an entirely endoscopic transseptal transsphenoidal approach via an incision in the nasal mucosa for both access and tumour resection. This procedure has a number of advantages: strictly midline approach to the sella turcica, large operative field, no interference between instruments and a low rate of nasal complications.


Assuntos
Adenoma/cirurgia , Septo Nasal/cirurgia , Neoplasias Hipofisárias/cirurgia , Cirurgia Endoscópica Transanal/métodos , Pontos de Referência Anatômicos , Humanos , Posicionamento do Paciente/métodos , Sela Túrcica/cirurgia , Seio Esfenoidal/cirurgia , Técnicas de Sutura , Cirurgia Endoscópica Transanal/instrumentação
17.
AIDS ; 4(6): 545-51, 1990 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-2201318

RESUMO

We expressed peptides from the HIV-1 envelope protein at the surface of Escherichia coli by genetic insertions into an exposed loop of the outer membrane protein LamB. Recombinant bacteria expressing eight peptides from gp110 (pep1-pep8), conserved between HIV-1 and HIV-2, were used as live immunogens in rabbits by the intravenous route. The eight constructions elicited anti-LamB antibodies, showing that the hybrid proteins were immunogenic. One of them, LamB-pep8, gave rise to antibodies able to react with gp160 and to neutralize HIV-1 in vitro. We also show that this type of recombinant E. coli can provide a convenient reagent to monitor and characterize specific antibodies. Recombinant clones were used to test sera of seropositive individuals, as well as to narrow down the monoclonal antibody 110-1 recognition site to a cluster of eight residues at the carboxy-terminal end of gp110.


Assuntos
Escherichia coli/genética , Antígenos HIV/imunologia , HIV-1/imunologia , Proteínas do Envelope Viral/imunologia , Sequência de Aminoácidos , Animais , Anticorpos Monoclonais/imunologia , Proteínas da Membrana Bacteriana Externa , Western Blotting , Produtos do Gene env/genética , Produtos do Gene env/imunologia , Antígenos HIV/genética , Proteína gp160 do Envelope de HIV , Dados de Sequência Molecular , Testes de Neutralização , Porinas , Precursores de Proteínas/genética , Precursores de Proteínas/imunologia , Coelhos , Receptores Virais/imunologia , Recombinação Genética , Proteínas do Envelope Viral/genética
18.
AIDS Res Hum Retroviruses ; 6(2): 251-60, 1990 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-2183854

RESUMO

The mechanism of cytopathic effects associated with HIV infection in a continuous line of CD4-positive lymphocytes (CEM cells, clone 13) has been studied. Here we report the following observations: (1) HIV infection killed a variable but always significant number of cells without a strict relationship with the syncytia formation; (2) an important decrease in the proliferation rate occurred soon after infection; (3) a marked inhibition of protein synthesis took place within the first few hours of infection and clearly before the beginning of viral protein expression. In addition, when three-day-old cultures were incubated in serum-free medium, a larger degradation of proteins was observed in infected cells in comparison to controls. An increase in protein degradation activity was observed also in vitro with extracts obtained from HIV-infected cells and incubated in the presence of endogenous- or exogenous-labeled substrates. Extracts from cells infected with heat-inactivated HIV did not show a similar degradative activity. The possible induction or activation of latent proteases during the development of the HIV infection is discussed.


Assuntos
Endopeptidases/biossíntese , Produtos do Gene pol/biossíntese , Infecções por HIV/enzimologia , HIV-1/enzimologia , Antígenos CD4/imunologia , Sobrevivência Celular , Pré-Escolar , Efeito Citopatogênico Viral , Ativação Enzimática/efeitos dos fármacos , Protease de HIV , HIV-1/imunologia , HIV-1/fisiologia , Humanos , Cinética , Contagem de Leucócitos , Inibidores de Proteases/farmacologia , Desnaturação Proteica , Células Tumorais Cultivadas
19.
N Engl J Med ; 316(19): 1180-5, 1987 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-3472076

RESUMO

We recently reported the isolation of a new retrovirus, termed human immunodeficiency virus type 2 (HIV-2), from two West African patients with the acquired immunodeficiency syndrome (AIDS). This virus is related to but distinct from the well-characterized AIDS retrovirus, human immunodeficiency virus type 1 (HIV-1). We report here evidence of infection with HIV-2 in 30 patients, almost all from West Africa. Seventeen of them had a clinical syndrome indistinguishable from AIDS (7 of these 17 died). Others had either the AIDS-related complex or no HIV-related symptoms. All patients had serum antibodies reacting with HIV-2 in an indirect immunofluorescence assay. All serum tested contained antibodies reacting with the envelope glycoprotein of the virus in an immunoprecipitation assay. Cross-reactivity of serum antibodies with HIV-1 was detected in a minority of patients and varied according to the assay used. Retroviral isolates were obtained from the blood lymphocytes of 11 patients and were all identified as HIV-2 by nucleic acid hybridization; none hybridized with an HIV-1 probe. These findings indicate that some cases of AIDS in West Africa may be caused by HIV-2, but the extent of the spread of this virus and its clinical correlates will require careful epidemiologic investigation.


Assuntos
Síndrome da Imunodeficiência Adquirida/microbiologia , Complexo Relacionado com a AIDS/microbiologia , África Ocidental , Anticorpos Antivirais/análise , Reações Cruzadas , Feminino , HIV/classificação , HIV/imunologia , HIV/isolamento & purificação , Anticorpos Anti-HIV , Humanos , Masculino
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