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1.
Virol J ; 21(1): 224, 2024 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-39304953

RESUMO

Nasopharyngeal carcinoma (NPC) is often diagnosed at a very advanced stage due to its location and non-specific initial symptoms. Moreover, no clinically useful serological marker has been established so far for early detection of NPC. In this study, we have investigated the clinical significance of plasma Epstein-Barr virus DNA load along with interleukin-6 (IL-6) and vascular endothelial growth factor (VEGF) levels to evaluate if these three all together can be useful as a strong serological marker for early detection and prediction of treatment response in patients with NPC. Plasma EBV DNA load, IL-6 level, VEGF expressions were measured in 24 patients with NPC at presentation and various time points during and after treatment. There was a positive correlation between high plasma EBV DNA load with higher IL-6 and VEGF expression, which was closely associated with therapeutic response as well. Persistent or recurrent plasma EBV load with higher IL-6 and VEGF levels can potentially predict disease progression and may be useful to select patients for additional therapy and longer follow-up.


Assuntos
Carcinoma , DNA Viral , Infecções por Vírus Epstein-Barr , Herpesvirus Humano 4 , Interleucina-6 , Carcinoma Nasofaríngeo , Neoplasias Nasofaríngeas , Fator A de Crescimento do Endotélio Vascular , Carga Viral , Humanos , Interleucina-6/sangue , Neoplasias Nasofaríngeas/virologia , Neoplasias Nasofaríngeas/sangue , Neoplasias Nasofaríngeas/diagnóstico , Herpesvirus Humano 4/genética , Feminino , Masculino , DNA Viral/sangue , Pessoa de Meia-Idade , Fator A de Crescimento do Endotélio Vascular/sangue , Carcinoma Nasofaríngeo/sangue , Carcinoma Nasofaríngeo/virologia , Carcinoma Nasofaríngeo/diagnóstico , Adulto , Prognóstico , Carcinoma/virologia , Carcinoma/sangue , Carcinoma/diagnóstico , Infecções por Vírus Epstein-Barr/sangue , Infecções por Vírus Epstein-Barr/virologia , Infecções por Vírus Epstein-Barr/diagnóstico , Biomarcadores/sangue , Idoso , Plasma/virologia
2.
Childs Nerv Syst ; 39(8): 2019-2026, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37160436

RESUMO

BACKGROUND: Spinal atypical teratoid rhabdoid tumor (AT/RT) is an extremely rare tumor and represents less than 2% of all AT/RTs. METHODS: Available medical literature on spinal AT/RT in English was retrieved from PubMed and comprehensively reviewed. Clinical presentation, diagnosis, management, prognosis, and outcome in patients with spinal AT/RT have been elucidated by citing a case of extradural AT/RT of the cervicodorsal spine. RESULTS: The age at presentation is usually less than 3 years. The most common site is the cervicodorsal spine. The most frequent tumor location is intradural extramedullary. A contrast-enhanced magnetic resonance imaging (MRI) of the entire neuraxis is the imaging modality of choice. The incidence of leptomeningeal dissemination is high (15-30%). Histopathological examination shows an admixture of primitive neuroectodermal, mesenchymal, and epithelial elements along with rhabdoid cells. Loss of SMARCB1/INI1 is considered pathognomonic of AT/RT. Maximal safe resection of tumor is the initial management of choice. Thereafter focal radiotherapy for localized tumor or craniospinal irradiation for leptomeningeal dissemination should be considered. Post-operative intensive polychemotherapy including intrathecal and high-dose chemotherapy (with autologous stem cell rescue) is usually considered to optimize survival. Typically, the time to recurrence and overall survival are less than 6 and 12 months, respectively. However, with judicious multimodality management long-term survivors are increasingly being recognized. The illustrative patient was a 18-month-old girl diagnosed with extradural AT/RT of the cervicodorsal spine (C3-D1), who was managed with maximal safe resection of tumor, multiagent chemotherapy (ICE-ifosfamide, carboplatin, etoposide) and focal RT to the tumor bed-50.4 Gy/28 fractions/5.5 weeks. At the last follow-up visit, 30 months after surgery, she had complete clinicoradiological response. CONCLUSION: Multimodal treatment comprising maximal safe resection of tumor, multiagent chemotherapy (ICE), and focal RT can lead to successful outcome in patients with localized spinal AT/RT, under the age of 3 years.


Assuntos
Neoplasias do Sistema Nervoso Central , Tumor Rabdoide , Teratoma , Feminino , Humanos , Pré-Escolar , Lactente , Teratoma/diagnóstico por imagem , Teratoma/terapia , Tumor Rabdoide/diagnóstico por imagem , Tumor Rabdoide/terapia , Coluna Vertebral
3.
J Adolesc Young Adult Oncol ; 12(6): 942-947, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37092992

RESUMO

Isolated extramedullary relapse of acute lymphoblastic leukemia (ALL) in the breast is extremely rare. We herein report a case of a 38-year-old female with B cell ALL, who had isolated extramedullary relapse initially in the left breast and subsequently in the right breast, 3 and 4 years, respectively, after hematopoietic allogenic stem cell transplantation. She was successfully salvaged with bilateral whole breast radiotherapy, 24 Gy/12 fractions/2.5 weeks. This brief report highlights the importance of awareness of extramedullary leukemic relapse in the breast as one of the differential diagnoses of breast masses in the context of ALL. Since these tumors are extremely radioresponsive, radiation therapy is a safe and effective treatment option for isolated extramedullary relapse of ALL in the breast.


Assuntos
Transplante de Células-Tronco Hematopoéticas , Leucemia-Linfoma Linfoblástico de Células Precursoras , Feminino , Humanos , Adulto , Recidiva , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Leucemia-Linfoma Linfoblástico de Células Precursoras/patologia , Resultado do Tratamento
4.
Glob Health Sci Pract ; 11(1)2023 02 28.
Artigo em Inglês | MEDLINE | ID: mdl-36853629

RESUMO

BACKGROUND: Intrapartum events leading to asphyxia at birth are a leading cause of neonatal morbidity and mortality in Nepal. In response, the Nepal Ministry of Health and Population adopted the Helping Babies Breathe (HBB) training curriculum in 2015 as a tool to improve neonatal resuscitation and outcomes. Although the effectiveness of HBB training has been well documented, challenges remain in maintaining skills over time. Safa Sunaulo Nepal (SSN) designed an evidence-based intervention for scaling up newborn resuscitation training and skill retention. We report on its implementation and the changes in newborn outcomes during the program period. METHODS: The program empowered facility-based trainers in newborn resuscitation and skill retention at 12 facilities in Gandaki Province. Seven of 14 level I hospitals and 5 of 6 level II hospitals were selected. A single external mentor coached the facility-based trainers, provided general support, and monitored progress. Program evaluation tracked changes in newborn metrics over 21 Nepali months (March 2018-November 2019). All deliveries occurring in the health facilities during the program period were included in the evaluation. We assessed program effectiveness by analyzing time trends of neonatal mortality, morbidity, and stillbirths. RESULTS: We gathered data on neonatal health outcomes of 33,417 deliveries, including 23,820 vaginal deliveries and 9,597 cesarean deliveries. During the program, 43 facility-based trainers taught resuscitation skills to 425 medical personnel and supported skill retention. Neonatal deaths within 24 hours of birth (incidence rate ratio [IRR]=0.993, P=.044) and newborn morbidities (IRR=0.996, P<.001) showed a significantly declining trend. CONCLUSION: Our findings suggest that the SSN program had a substantial influence on critical neonatal outcomes. Future neonatal resuscitation capacity-building and skill retention efforts may benefit from incorporating elements of the program.


Assuntos
Parto , Ressuscitação , Lactente , Feminino , Gravidez , Humanos , Recém-Nascido , Nepal , Benchmarking , Fortalecimento Institucional
5.
Diagn Cytopathol ; 51(1): E28-E37, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36148935

RESUMO

Distant metastasis from salivary gland secretory carcinoma (SC) is rare, with lung and pleura being the most frequent site. While cytological features of SC on fine needle aspirates are well documented, its morphology in serous effusions has not been described. We describe the cytomorphological features on effusion cytology of two patients with ETV6::NTRK3 fusion-positive SC, who subsequently developed pleural metastases. Cytospin preparations of pleural fluid showed tightly cohesive, irregularly shaped and ball-like clusters of large tumor cells with scant to abundant uni- and multi-vacuolated cytoplasm. Nuclei were eccentrically placed, round to oval, vesicular, with finely granular chromatin, irregular nuclear membranes and conspicuous to prominent nucleoli. With these features, the tumors resembled an adenocarcinoma, indistinguishable from a lung primary. Cell blocks from both cases showed tumor fragments, some of which had the hollow appearance of transversely sectioned cell spheres as seen in lung and breast adenocarcinomas. Immunohistochemistry on cell blocks revealed nuclear pan-TRK positivity in both cases. Case 1 also showed focal mammaglobin staining, and TTF1 negativity. Pleural metastases from SC may mimic other adenocarcinomas. As targeted therapy, that is, selective TRK inhibitors are available for treatment of metastatic disease, NTRK3 fusion status is not only diagnostic, but also required to plan treatment. Pan-TRK immunohistochemistry serves as a viable cost-effective, easy to apply surrogate marker for NTRK3 fusion, particularly in diagnostic laboratories lacking easy access to molecular testing on cytological material.


Assuntos
Carcinoma , Humanos , Imuno-Histoquímica
6.
J AOAC Int ; 94(3): 795-802, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21797007

RESUMO

A rapid and cost-effective method for the extraction of rotenoids in Boerhaavia diffusa L., based on the use of microwave-assisted extraction (MAE), is proposed. The conventional reflux, soxhlet, and maceration extraction methods were also conducted to validate the reliability of the new method. Under the optimized conditions, two rotenoids (boeravinone B and E) were extracted and quantified by HPTLC. The yield of boeravinone B and E achieved by MAE was 0.15 and 0.32% (w/w), respectively. The result showed that MAE-HPTLC is a simple, rapid, and solvent-sparing method for the extraction and quantitation of boeravinone B and E from B. diffusa L.


Assuntos
Absorciometria de Fóton/métodos , Cromatografia em Camada Fina/métodos , Flavonoides/química , Nyctaginaceae/química , Micro-Ondas , Estrutura Molecular , Extratos Vegetais/química , Reprodutibilidade dos Testes , Ultrassom/métodos
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