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1.
Am J Med ; 136(4): 345-349, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36566895

RESUMEN

Dismantling racism in health care demands that medical education promote racial justice throughout all stages of medical training. However, racial bias can be fostered unintentionally, influencing the way we make decisions as clinicians with downstream effects on patient health and health equity. The development of any anti-racism curriculum in medicine requires the ability to identify racial bias in practices we have not previously recognized as explicitly racist or unjust. This has limited the creation and delivery of effective anti-racism education in health care.


Asunto(s)
Educación Médica , Racismo , Humanos , Antiracismo , Atención a la Salud , Justicia Social
3.
J Fungi (Basel) ; 7(8)2021 Jul 30.
Artículo en Inglés | MEDLINE | ID: mdl-34436160

RESUMEN

A 56-year-old Hispanic man with a history of disseminated coccidioidomycosis was diagnosed with persistent glucocorticoid insufficiency and pseudohyperaldosteronism secondary to posaconazole toxicity. This case was notable for unexpected laboratory findings of both pseudohyperaldosteronism and severe glucocorticoid deficiency due to posaconazole's mechanism of action on the adrenal steroid synthesis pathway. Transitioning to fluconazole and starting hydrocortisone resolved the hypokalemia but not his glucocorticoid deficiency. This case highlights the importance of recognizing iatrogenic glucocorticoid deficiency with azole antifungal agents and potential long term sequalae.

4.
Anticancer Drugs ; 30(5): 537-541, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-30762593

RESUMEN

The mesenchymal-to-epithelial transition (MET) gene is altered and becomes a driver mutation in up to 5% of non-small-cell lung cancer (NSCLC). We report our institutional experience treating patients with MET exon 14 skipping (METex14) mutations, including responses to the MET inhibitors crizotinib and cabozantinib. We identified cases of NSCLC with METex14 mutations using an institutionally developed or commercial next-generation sequencing assay. We assessed patient and disease characteristics by retrospective chart review. Some patients were treated off-label by the physician with crizotinib or cabozantinib, and tumor responses to these agents were assessed. A total of 15 patients with METex14-mutated NSCLC were identified, predominantly male (n=10) with a smoking history (60%) and a median age of 74.0 years. No other actionable somatic mutations were detected. Stage distribution included 26.7% stage I, 6.7% stage II, 6.7% stage III, and 60.0% stage IV. Among patients treated with crizotinib or cabozantinib (n=6), three patients showed partial response and one patient showed stable disease on the basis of RECIST criteria. Four patients experienced side effects requiring drug holiday, reduction, or cessation. Our findings highlight the diversity in presentation and histology of NSCLC with METex14 mutations, which were found in the absence of other actionable driver mutations. We observed evidence of tumor response to crizotinib and cabozantinib, supporting the previous reports that METex14 mutations in NSCLC are actionable driver events.


Asunto(s)
Adenocarcinoma del Pulmón/patología , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Pulmón de Células no Pequeñas/patología , Exones , Neoplasias Pulmonares/patología , Mutación , Proteínas Proto-Oncogénicas c-met/genética , Adenocarcinoma del Pulmón/tratamiento farmacológico , Adenocarcinoma del Pulmón/genética , Anciano , Anciano de 80 o más Años , Anilidas/administración & dosificación , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/genética , Crizotinib/administración & dosificación , Transición Epitelial-Mesenquimal , Femenino , Humanos , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/genética , Masculino , Persona de Mediana Edad , Piridinas/administración & dosificación , Estudios Retrospectivos
5.
Lung Cancer ; 122: 187-191, 2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-30032829

RESUMEN

When a patient is found to have multiple lung tumors, distinguishing whether they represent metastatic nodules or separate primary cancers is crucial for staging and therapy. We report the case of a 79-year-old patient with two surgically resected synchronous left upper lobe adenocarcinomas initially pathologically staged as T3 (IIB), indicating adjuvant chemotherapy should be recommended. However, the tumors appeared radiographically distinct, so next-generation sequencing was performed on each nodule. Each tumor harbored a different mesenchymal-to-epithelial transition (MET) exon 14 skipping mutation, an emerging targetable mutation, suggestive of distinct clonality. While the in frame protein deletion was the same in each tumor, the nucleotide base substitutions were different. Thus, the patient was down-staged to having two separate IA tumors, spared of adjuvant chemotherapy, and routine surveillance was recommended. This case highlights the utility of using molecular analysis in diagnosing and treating multifocal lung tumors, and the process of convergent molecular evolution toward a common oncogenic driver mutation. This is the first case of multiple synchronous lung tumors each harboring a distinct MET exon 14 splice site mutation.


Asunto(s)
Adenocarcinoma/genética , Exones/genética , Neoplasias Pulmonares/genética , Mutación/genética , Neoplasias Primarias Múltiples/genética , Empalme de Proteína/genética , Proteínas Proto-Oncogénicas c-met/genética , Adenocarcinoma/diagnóstico , Anciano , Diagnóstico Diferencial , Humanos , Neoplasias Pulmonares/diagnóstico , Masculino , Metástasis de la Neoplasia , Estadificación de Neoplasias , Neoplasias Primarias Múltiples/diagnóstico , Patología Molecular
6.
J Acquir Immune Defic Syndr ; 66(3): 303-10, 2014 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-24732871

RESUMEN

BACKGROUND: Peripheral neuropathy (PN) is a frequent complication of chronic HIV infection. We prospectively studied individuals with primary HIV infection (<1 year after transmission) to assess the presence of and laboratory associations with PN in this early stage. METHODS: Standardized examination and analysis of blood and cerebrospinal fluid (CSF) was performed in participants with laboratory-confirmed primary HIV infection. PN was defined as ≥1 of the following unilateral or bilateral signs: decreased distal limb position, vibration, or temperature sense or hyporeflexia; symptomatic PN (SPN) was defined as the presence of these signs with symptoms. Analysis used nonparametric statistics. RESULTS: Overall, 20 (35%) of 58 antiretroviral-naive male subjects without diabetes evaluated at a median of 107 days post HIV transmission met criteria for PN. Thirteen (65%) of 20 PN subjects met criteria for SPN; 6 (30%) of 20 had bilateral findings. PN subjects and no PN subjects (NPN) did not differ in median age, days post HIV transmission, blood CD4 or CD8 counts, CSF or plasma HIV RNA levels, CSF white blood cell counts, or CSF to blood albumin ratio. PN and SPN subjects had elevated CSF neopterin (P = 0.003 and P = 0.0005), CSF monocyte chemoattractant protein-1 (P = 0.006 and P = 0.01), and blood neopterin (P = 0.006 and P = 0.009) compared with NPN subjects. PN subjects had a higher percentage of activated phenotype CSF CD8 T lymphocytes than NPN subjects (P = 0.009). CONCLUSIONS: Signs of PN were detected by detailed neurologic examination in 35% of men enrolled in a neurological study at a median of 3.5 months after HIV transmission. PN during this early period may be mediated by systemic and nervous system immune responses to HIV.


Asunto(s)
Infecciones por VIH/complicaciones , Enfermedades del Sistema Nervioso Periférico/virología , Adulto , Biomarcadores/sangre , Biomarcadores/líquido cefalorraquídeo , Recuento de Linfocito CD4 , Linfocitos T CD8-positivos/citología , Quimiocina CCL2/sangre , Quimiocina CCL2/líquido cefalorraquídeo , Quimiocina CXCL10/sangre , Quimiocina CXCL10/líquido cefalorraquídeo , Enfermedad Crónica , Estudios Transversales , Infecciones por VIH/sangre , Infecciones por VIH/líquido cefalorraquídeo , Infecciones por VIH/inmunología , Humanos , Recuento de Leucocitos , Masculino , Persona de Mediana Edad , Neopterin/sangre , Neopterin/líquido cefalorraquídeo , Enfermedades del Sistema Nervioso Periférico/inmunología , Estudios Prospectivos , ARN Viral/sangre , ARN Viral/líquido cefalorraquídeo , Análisis de Regresión
7.
Yale J Biol Med ; 84(4): 487-90, 2011 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-22180687

RESUMEN

Assisted reproductive technology (ART) has been recognized for its success in treating infertility, a condition that affects 15 percent of couples in the United States. The most popular option is in vitro fertilization (IVF), which relies on embryo culture, selection, and transfer for implantation, with the ultimate aim of pregnancy. Previous embryo selection methods relied on morphological factors to select for greatest viability. At Yale's Frontiers in Reproduction Conference on April 29, 2011, at the New Haven Lawn Club, Dr. Denny Sakkas of Yale's Department of Obstetrics, Gynecology, and Reproductive Sciences presented a paradigm shift: using morphological factors along with metabolic, protein, and genetic markers in culture media to enhance embryo selection and IVF success rates.


Asunto(s)
Transferencia de Embrión/tendencias , Fertilización In Vitro/tendencias , Reproducción/fisiología , Femenino , Genómica , Humanos , Metabolómica , Embarazo
8.
Yale J Biol Med ; 84(2): 149-51, 2011 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-21698048

RESUMEN

Memory is a binary process relying on a short-term form lasting minutes to forge and communicate with a long-term form lasting years. Yale's Bicentennial Symposium opened with a lecture elucidating the obscure process of long-term memory formation. From his decades of research, Nobel Laureate Eric Kandel offered insight into the molecular framework that is long term-memory.


Asunto(s)
Memoria a Largo Plazo , Premio Nobel
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