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1.
N Engl J Med ; 387(23): 2150-2158, 2022 12 08.
Artículo en Inglés | MEDLINE | ID: mdl-36351280

RESUMEN

Patients with early-onset lysosomal storage diseases are ideal candidates for prenatal therapy because organ damage starts in utero. We report the safety and efficacy results of in utero enzyme-replacement therapy (ERT) in a fetus with CRIM (cross-reactive immunologic material)-negative infantile-onset Pompe's disease. The family history was positive for infantile-onset Pompe's disease with cardiomyopathy in two previously affected deceased siblings. After receiving in utero ERT and standard postnatal therapy, the current patient had normal cardiac and age-appropriate motor function postnatally, was meeting developmental milestones, had normal biomarker levels, and was feeding and growing well at 13 months of age.


Asunto(s)
Enfermedad del Almacenamiento de Glucógeno Tipo II , Humanos , Lactante , Enfermedad del Almacenamiento de Glucógeno Tipo II/tratamiento farmacológico
2.
J Transl Med ; 22(1): 141, 2024 02 07.
Artículo en Inglés | MEDLINE | ID: mdl-38326843

RESUMEN

BACKGROUND: Cancer-testis antigens (CTAs) are tumor antigens that are normally expressed in the testes but are aberrantly expressed in several cancers. CTA overexpression drives the metastasis and progression of lung cancer, and is associated with poor prognosis. To improve lung cancer diagnosis, prognostic prediction, and drug discovery, robust CTA identification and quantitation is needed. In this study, we examined and quantified the co-expression of CTAs in lung cancer to derive cancer testis antigen burden (CTAB), a novel biomarker of immunotherapy response. METHODS: Formalin fixed paraffin embedded (FFPE) tumor samples in discovery cohort (n = 5250) and immunotherapy and combination therapy treated non-small cell lung cancer (NSCLC) retrospective (n = 250) cohorts were tested by comprehensive genomic and immune profiling (CGIP), including tumor mutational burden (TMB) and the mRNA expression of 17 CTAs. PD-L1 expression was evaluated by IHC. CTA expression was summed to derive the CTAB score. The median CTAB score for the discovery cohort of 170 was applied to the retrospective cohort as cutoff for CTAB "high" and "low". Biomarker and gene expression correlation was measured by Spearman correlation. Kaplan-Meier survival analyses were used to detect overall survival (OS) differences, and objective response rate (ORR) based on RECIST criteria was compared using Fisher's exact test. RESULTS: The CTAs were highly co-expressed (p < 0.05) in the discovery cohort. There was no correlation between CTAB and PD-L1 expression (R = 0.011, p = 0.45) but some correlation with TMB (R = 0.11, p = 9.2 × 10-14). Kaplan-Meier survival analysis of the immunotherapy-treated NSCLC cohort revealed better OS for the pembrolizumab monotherapy treated patients with high CTAB (p = 0.027). The combination group demonstrated improved OS compared to pembrolizumab monotherapy group (p = 0.04). The pembrolizumab monotherapy patients with high CTAB had a greater ORR than the combination therapy group (p = 0.02). CONCLUSIONS: CTA co-expression can be reliably measured using CGIP in solid tumors. As a biomarker, CTAB appears to be independent from PD-L1 expression, suggesting that CTAB represents aspects of tumor immunogenicity not measured by current standard of care testing. Improved OS and ORR for high CTAB NSCLC patients treated with pembrolizumab monotherapy suggests a unique underlying aspect of immune response to these tumor antigens that needs further investigation.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Humanos , Masculino , Neoplasias Pulmonares/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/patología , Antígeno B7-H1/metabolismo , Cetrimonio/uso terapéutico , Estudios Retrospectivos , Testículo/química , Testículo/metabolismo , Testículo/patología , Antígenos de Neoplasias , Biomarcadores de Tumor/genética
3.
Gynecol Oncol ; 178: 44-53, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37748270

RESUMEN

OBJECTIVE: This multi-center cohort study assessed associations between race, TP53 mutations, p53 expression, and histology to investigate racial survival disparities in endometrial cancer (EC). METHODS: Black and White patients with advanced or recurrent EC with Next Generation Sequencing data in the Endometrial Cancer Molecularly Targeted Therapy Consortium database were identified. Clinicopathologic and treatment variables were summarized by race and compared. Overall survival (OS) and progression-free survival (PFS) among all patients were estimated by the Kaplan-Meier method. Cox proportional hazards models estimated the association between race, TP53 status, p53 expression, histology, and survival outcomes. RESULTS: Black patients were more likely than White patients to have TP53-mutated (N = 727, 71.7% vs 49.7%, p < 0.001) and p53-abnormal (N = 362, 71.1% vs 53.2%, p = 0.003) EC. Patients with TP53-mutated EC had worse PFS (HR 2.73 (95% CI 1.88-3.97)) and OS (HR 2.20 (95% CI 1.77-2.74)) compared to those with TP53-wildtype EC. Patients with p53-abnormal EC had worse PFS (HR 2.01 (95% CI 1.22-3.32)) and OS (HR 1.61 (95% CI 1.18-2.19)) compared to those with p53-wildtype EC. After adjusting for TP53 mutation and p53 expression, race was not associated with survival outcomes. The most frequent TP53 variants were at nucleotide positions R273 (n = 54), R248 (n = 38), and R175 (n = 23), rates of which did not differ by race. CONCLUSIONS: Black patients are more likely to have TP53-mutated and p53-abnormal EC, which are associated with worse survival outcomes than TP53- and p53-wildtype EC. The higher frequency of these subtypes among Black patients may contribute to survival disparities.


Asunto(s)
Neoplasias Endometriales , Proteína p53 Supresora de Tumor , Femenino , Humanos , Estudios de Cohortes , Neoplasias Endometriales/genética , Neoplasias Endometriales/patología , Mutación , Recurrencia Local de Neoplasia , Pronóstico , Proteína p53 Supresora de Tumor/genética , Proteína p53 Supresora de Tumor/metabolismo , Población Negra/genética , Población Blanca/genética
4.
Pediatr Res ; 94(5): 1696-1706, 2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37460709

RESUMEN

BACKGROUND: Studies conflict on how acute versus chronic placental pathology impacts outcomes after neonatal encephalopathy from presumed hypoxic-ischemic encephalopathy (HIE). We examine how outcomes after presumed HIE vary by placental pathology categories. METHODS: We performed retrospective chart review for neonates with presumed HIE, regardless of severity, focusing on 50 triads for whom placental specimens were available for re-review. Placentas were categorized as having only acute, any chronic, or no lesions. Primary outcomes included in-hospital morbidity/mortality and long-term neurodevelopmental symptoms. Secondary outcomes assessed neonatal MRI and EEG. RESULTS: Demographics did not differ between groups. Forty-seven neonates were treated with therapeutic hypothermia. Placental acuity category was not associated with primary or secondary outcomes, but clinical and/or histopathological chorioamnionitis was associated with abnormal EEG background and post-neonatal epilepsy (16.7%, n = 3 with chorioamnionitis versus 0%, n = 0 without chorioamnionitis, p = 0.04). CONCLUSIONS: When grouped by acute, chronic, or absent placental lesions, we observed no association with in-hospital, neurodevelopmental, MRI, or EEG outcomes. When reanalyzed by the presence of chorioamnionitis, we found that chorioamnionitis appeared to be associated with a higher risk of EEG alterations and post-neonatal epilepsy. Despite our limited sample size, our results emphasize the critical role of placental examination for neuroprognostication in presumed HIE. IMPACT: Neonatal encephalopathy presumed to result from impaired fetal cerebral oxygenation or blood flow is called hypoxic ischemic encephalopathy (HIE). Prior studies link placental pathology to various outcomes after HIE but disagree on the impact of acute versus chronic pathology. Our study determines that neurodevelopmental outcomes, in-hospital outcomes, injury on MRI, and EEG findings in patients with HIE are not differentially associated with acute versus chronic placental pathology. Chorioamnionitis is associated with an increased risk of abnormal EEG patterns and post-neonatal epilepsy. Histopathologic chorioamnionitis without clinical symptoms is common in HIE, emphasizing the crucial role of placental pathology for neuroprognostication.


Asunto(s)
Corioamnionitis , Epilepsia , Hipotermia Inducida , Hipoxia-Isquemia Encefálica , Enfermedades del Recién Nacido , Recién Nacido , Humanos , Femenino , Embarazo , Placenta/patología , Corioamnionitis/patología , Estudios Retrospectivos , Enfermedades del Recién Nacido/terapia , Enfermedades del Recién Nacido/patología , Hipoxia-Isquemia Encefálica/complicaciones , Hipoxia-Isquemia Encefálica/diagnóstico por imagen , Hipoxia-Isquemia Encefálica/terapia , Epilepsia/patología
5.
Int J Gynecol Pathol ; 42(1): 83-88, 2023 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-35348477

RESUMEN

The BRCA1-associated protein 1 ( BAP1 ) gene encodes a tumor suppressor that functions as a ubiquitin hydrolase involved in DNA damage repair. BAP1 germline mutations are associated with increased risk of multiple solid malignancies, including mesothelioma, uveal melanoma, renal cell carcinoma, and high-grade rhabdoid meningiomas. Here, we describe the case of a 52-yr-old woman who experienced multiple abdominal recurrences of an ovarian sex cord-stromal tumor that was originally diagnosed at age 25 and who was found to have a germline mutation in BAP1 and a family history consistent with BAP1 tumor predisposition syndrome. Recurrence of the sex cord-stromal tumor demonstrated loss of BAP1 expression by immunohistochemistry. Although ovarian sex cord-stromal tumors have been described in mouse models of BAP1 tumor predisposition syndrome, this relationship has not been previously described in humans and warrants further investigation. The case presentation, tumor morphology, and immunohistochemical findings have overlapping characteristics with peritoneal mesotheliomas, and this case represents a potential pitfall for surgical pathologists.


Asunto(s)
Neoplasias Meníngeas , Mesotelioma , Síndromes Neoplásicos Hereditarios , Neoplasias Ováricas , Tumores de los Cordones Sexuales y Estroma de las Gónadas , Neoplasias de la Úvea , Ratones , Femenino , Animales , Humanos , Adulto , Ubiquitina Tiolesterasa/genética , Ubiquitina Tiolesterasa/metabolismo , Neoplasias de la Úvea/diagnóstico , Neoplasias de la Úvea/genética , Síndromes Neoplásicos Hereditarios/genética , Mesotelioma/genética , Mesotelioma/metabolismo , Mesotelioma/patología , Mutación de Línea Germinal , Neoplasias Ováricas/diagnóstico , Neoplasias Ováricas/genética , Tumores de los Cordones Sexuales y Estroma de las Gónadas/diagnóstico , Tumores de los Cordones Sexuales y Estroma de las Gónadas/genética , Neoplasias Meníngeas/genética , Neoplasias Meníngeas/patología , Predisposición Genética a la Enfermedad , Proteínas Supresoras de Tumor/genética
6.
Ann Emerg Med ; 82(2): 154-163, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-36759233

RESUMEN

STUDY OBJECTIVE: Low back pain is a common reason for visiting the emergency department (ED), yet little is known about patient motivations for seeking emergency care. The purpose of this study was to explore patient perspectives on visiting the ED for low back pain to inform a more patient-centered approach to emergency care. METHODS: We conducted focus group discussions and individual interviews among patients visiting an urban academic ED for acute low back pain. We recruited participants from an ongoing prospective study of 101 patients receiving either ED-initiated physical therapy or usual care. We conducted discussions, and interviews using an a priori developed discussion guide. We audio recorded, transcribed, and iteratively content analyzed the data using a consensual qualitative approach until thematic saturation was reached. RESULTS: We conducted 4 focus group discussions among 18 participants (median age 46.5 years, 66.7% women, 61.1% Black) and individual interviews with 27 participants (median age 45 years, 55.6% women, 44.4% White). No new themes emerged during the fourth and final focus group. We identified 5 summary themes: (1) the decision to seek emergency care for low back pain is motivated by severe pain, resulting disability, and fears about a catastrophic diagnosis, (2) participants sought various goals from their ED visit but emphasized the primacy of pain control, (3) participants were reluctant to use pain medications but also acknowledged their benefit, (4) participants perceived a number of benefits from direct access to an ED physical therapist in the ED, and (5) participation in physical therapy ultimately facilitated recovery, but the pain was a barrier to performing exercises. CONCLUSIONS: These patient perspectives and resulting themes may be used to inform a more patient-centered emergency care experience and contextualize quantitative research findings on ED care for low back pain.


Asunto(s)
Dolor Agudo , Dolor de la Región Lumbar , Humanos , Femenino , Persona de Mediana Edad , Masculino , Dolor de la Región Lumbar/terapia , Estudios Prospectivos , Servicio de Urgencia en Hospital , Grupos Focales , Dolor Agudo/terapia , Modalidades de Fisioterapia , Investigación Cualitativa
7.
Am J Perinatol ; 29(14): 1503-1513, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-35973741

RESUMEN

OBJECTIVE: This study compares the number of units of red blood cells (RBCs) transfused in patients with placenta accreta spectrum (PAS) treated with or without a multidisciplinary algorithm that includes placental uterine arterial embolization (P-UAE) and selective use of either immediate or delayed hysterectomy. STUDY DESIGN: This is a retrospective study of deliveries conducted at a tertiary care hospital from 2001 to 2018 with pathology-confirmed PAS. Those with previable pregnancies or microinvasive histology were excluded. To improve the equity of comparison, analyses were made separately among scheduled and unscheduled cases, therefore patients were assigned to one of four cohorts as follows: (1) scheduled/per-algorithm, (2) scheduled/off-algorithm, (3) unscheduled/per-algorithm, or (4) unscheduled/off-algorithm. Primary outcomes included RBCs transfused and estimated blood loss (EBL). Secondary outcomes included perioperative complications and disposition. RESULTS: Overall, 95 patients were identified, with 87 patients meeting inclusion criteria: 36 treated per-algorithm (30 scheduled and 6 unscheduled) and 51 off-algorithm patients (24 scheduled and 27 unscheduled). Among scheduled deliveries, 9 (30.0%) patients treated per-algorithm received RBCs compared with 20 (83.3%) patients treated off-algorithm (p < 0.01), with a median (interquartile range [IQR]) of 3.0 (2.0, 4.0) and 6.0 (2.5, 7.5) units transfused (p = 0.13), respectively. Among unscheduled deliveries, 5 (83.3%) per-algorithm patients were transfused RBCs compared with 25 (92.6%) off-algorithm patients (p = 0.47) with a median (IQR) of 4.0 (2.0, 6.0) and 8.0 (3.0, 10.0) units transfused (p = 0.47), respectively. Perioperative complications were similar between cohorts. CONCLUSION: A multidisciplinary algorithm including P-UAE and selective use of delayed hysterectomy is associated with a lower rate of blood transfusion in scheduled but not unscheduled cases. KEY POINTS: · An algorithm with delayed hysterectomy had less transfusion in scheduled, but not unscheduled, cases.. · Over time, more cases were managed per algorithm; among scheduled cases, the transfusion rate and volume transfused decreased.. · There were similar transfusion outcomes among off-algorithm cases, regardless if delivery was scheduled..


Asunto(s)
Placenta Accreta , Pérdida de Sangre Quirúrgica , Transfusión Sanguínea , Cesárea , Femenino , Humanos , Histerectomía , Placenta , Placenta Accreta/cirugía , Embarazo , Estudios Retrospectivos
8.
Gynecol Oncol ; 160(1): 169-174, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33393478

RESUMEN

OBJECTIVE: To determine the feasibility and effectiveness of a quality improvement initiative (QI) to adopt universal screening for Lynch syndrome in uterine cancer patients at an institution that previously employed age-based screening. METHODS: Prior to the initiative, tumors of patients with uterine cancer diagnosed at age ≤ 60 years were screened for mismatch repair deficiency (MMR) and microsatellite instability (MSI). The QI process change model adopted universal testing of all uterine cancer specimens and implemented provider training, standardized documentation, and enhanced use of the electronic medical record (EMR). We compared screening rates, results of screening, follow up of abnormal results, and final diagnoses from the pre- and post-implementation periods. RESULTS: Pre- and post-implementation screening rates for women age ≤ 60 years at the time of diagnosis were 45/78 (57.7%) and 64/68 (94.5%), respectively. The screening rate for all patients with uterine cancer increased from 73/190 (38.4%) to 172/182 (94.5%). The rate of abnormal screening results increased from 15/190 (7.9%) to 44/182 (24.0%) cases. Genetics referral rates among screen positives increased from 3/15 (20.0%) to 16/44 (36.4%). Germline diagnoses increased from 2/190 (1.1%) with two Lynch syndrome diagnoses to 4/182 (2.2%) including three Lynch syndrome diagnoses and one BRCA1 germline diagnosis. The number of patients errantly not screened decreased from at least 32 patients to 3 patients after the intervention. CONCLUSIONS: Adherence to screening guidelines significantly improved after interventions involving provider education, optimal use of the EMR, and simplification of screening indications. These interventions are feasible at other institutions and translatable to other screening indications.


Asunto(s)
Neoplasias Colorrectales Hereditarias sin Poliposis/diagnóstico , Neoplasias Uterinas/diagnóstico , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias Colorrectales Hereditarias sin Poliposis/patología , Reparación de la Incompatibilidad de ADN , Detección Precoz del Cáncer , Femenino , Humanos , Histerectomía , Inmunohistoquímica , Inestabilidad de Microsatélites , Persona de Mediana Edad , Control de Calidad , Neoplasias Uterinas/patología , Neoplasias Uterinas/cirugía
9.
Int J Gynecol Pathol ; 40(6): 587-596, 2021 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-33720082

RESUMEN

The study evaluated morphologic patterns, mutational profiles, and ß-catenin immunohistochemistry (IHC) in copy-number low (CNL) endometrial adenocarcinomas (EAs). CNL EAs (n=19) with next-generation or whole genome sequencing results and available tissue for IHC were identified from our institutional database. Clinical data and histologic slides were reviewed. IHC for ß-catenin was performed and correlated with mutation status. Images of digital slides of CNL EAs from The Cancer Genome Atlas (TCGA) database (n=90) were blindly reviewed by 4 pathologists, and morphology was correlated with mutation status. Categorical variables were analyzed using the Fisher exact test, and agreement was assessed using Fleiss κ. CTNNB1 mutations were present in 63% (12/19) of CNL EAs. ß-catenin nuclear localization was present in 83% of CTNNB1-mutated tumors (10/12) and in 0% (0/7) of CTNNB1-wildtype tumors (sensitivity 0.83, specificity 1.00). Squamous differentiation (SD) was present in 47% (9/19) and was more often observed in CTNNB1-mutated tumors (P=0.02). Mucinous differentiation (MD) was associated with KRAS mutations (P<0.01). Digital image review of TCGA CNL EAs revealed that pathologist agreement on SD was strong (κ=0.82), whereas agreement on MD was weak (κ=0.48). Pathologists identified SD in 22% (20/90), which was significantly associated with the presence of CTNNB1 mutations (P<0.01). CNL EAs demonstrate several morphologies with divergent molecular profiles. SD was significantly associated with CTNNB1 mutations and nuclear localization of ß-catenin in these tumors. Nuclear expression of ß-catenin is a sensitive and specific IHC marker for CTNNB1 mutations in CNL EAs. CNL EAs with KRAS mutations often displayed MD.


Asunto(s)
Adenocarcinoma , Neoplasias Endometriales , Adenocarcinoma/diagnóstico , Adenocarcinoma/genética , Análisis Mutacional de ADN , Neoplasias Endometriales/diagnóstico , Neoplasias Endometriales/genética , Femenino , Humanos , Inmunohistoquímica , Mutación , beta Catenina/genética
10.
Int J Gynecol Pathol ; 39(2): 163-169, 2020 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-31574529

RESUMEN

Epithelial proliferations in the fallopian tube have been characterized by some as stem cell outgrowths (SCOUTs) and divided into type I and type II. Type II SCOUTs exhibit diffuse cellular beta-catenin nuclear staining (ß-catenin), implying a CTNNB1 mutation. SCOUTs are more common in perimenopausal and postmenopausal women and are associated with ovarian cancer but have not been linked directly to malignancy. We analyzed type II SCOUTs in various gynecologic conditions, and searched for endometrioid atypical hyperplasias (tubal endometrioid intraepithelial neoplasia) or adenocarcinomas in the tube. ß-catenin SCOUT frequency in cases of neoplasia was 66.7% per case and 30.7% per nonfimbrial cross-section for uterine endometrioid carcinomas versus 25% and 13.3% for controls, respectively (P=0.02 and 0.09). Multiple (3 or more) ß-catenin SCOUTs in a single section were uncommon; 6 of 9 were associated with a carcinoma or proliferative lesion in the endometrium. Tubal endometrioid intraepithelial neoplasia/atypical hyperplasia displayed complex growth, including focal cribriform growth patterns and squamous morules. Two cases of type II SCOUTs associated with tubal endometrioid intraepithelial neoplasia/atypical hyperplasia and/or adenocarcinomas in the fallopian tube were identified, both of which coexisted with a separate endometrioid adenocarcinoma, one with bilateral ovarian endometrioid adenocarcinomas. Both benign and neoplastic tubal lesions were ß-catenin. This report is the first to link components of a unique ß-catenin endometrioid carcinogenic sequence in the fallopian tube. It further emphasizes the multifocal nature of endometrioid neoplasia in the female genital tract and poses questions regarding the frequency and biologic underpinnings of ß-catenin proliferations in the oviduct.


Asunto(s)
Carcinogénesis/patología , Carcinoma Endometrioide/patología , Neoplasias de las Trompas Uterinas/patología , Lesiones Precancerosas/patología , beta Catenina/metabolismo , Carcinogénesis/metabolismo , Carcinoma Endometrioide/metabolismo , Neoplasias de las Trompas Uterinas/metabolismo , Trompas Uterinas/metabolismo , Trompas Uterinas/patología , Femenino , Humanos , Persona de Mediana Edad , Lesiones Precancerosas/metabolismo
11.
J Biol Chem ; 293(5): 1590-1595, 2018 02 02.
Artículo en Inglés | MEDLINE | ID: mdl-29242190

RESUMEN

The Rv2633c gene in Mycobacterium tuberculosis is rapidly up-regulated after macrophage infection, suggesting that Rv2633c is involved in M. tuberculosis pathogenesis. However, the activity and role of the Rv2633c protein in host colonization is unknown. Here, we analyzed the Rv2633c protein sequence, which revealed the presence of an HHE cation-binding domain common in hemerythrin-like proteins. Phylogenetic analysis indicated that Rv2633c is a member of a distinct subset of hemerythrin-like proteins exclusive to mycobacteria. The Rv2633c sequence was significantly similar to protein sequences from other pathogenic strains within that subset, suggesting that these proteins are involved in mycobacteria virulence. We expressed and purified the Rv2633c protein in Escherichia coli and found that it contains two iron atoms, but does not behave like a hemerythrin. It migrated as a dimeric protein during size-exclusion chromatography. It was not possible to reduce the protein or observe any evidence for its interaction with O2 However, Rv2633c did exhibit catalase activity with a kcat of 1475 s-1 and Km of 10.1 ± 1.7 mm Cyanide and azide inhibited the catalase activity with Ki values of 3.8 µm and 37.7 µm, respectively. Rv2633c's activity was consistent with a role in defenses against oxidative stress generated during host immune responses after M. tuberculosis infection of macrophages. We note that Rv2633c is the first example of a non-heme di-iron catalase, and conclude that it is a member of a subset of hemerythrin-like proteins exclusive to mycobacteria, with likely roles in protection against host defenses.


Asunto(s)
Proteínas Bacterianas/química , Catalasa/química , Hierro/química , Metaloproteínas/química , Mycobacterium tuberculosis/enzimología , Factores de Virulencia/química , Proteínas Bacterianas/genética , Proteínas Bacterianas/metabolismo , Catalasa/genética , Catalasa/metabolismo , Hierro/metabolismo , Metaloproteínas/genética , Metaloproteínas/metabolismo , Mycobacterium tuberculosis/genética , Mycobacterium tuberculosis/patogenicidad , Estrés Oxidativo , Multimerización de Proteína , Factores de Virulencia/genética , Factores de Virulencia/metabolismo
12.
Int J Gynecol Pathol ; 38(5): 443-448, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-29901519

RESUMEN

Serous tubal intraepithelial carcinoma (STIC) is found in 10% to 60% of cases of tuboovarian high-grade serous carcinoma (HGSC) and is presumed to be the site of origin, linking many HGSCs to the fallopian tube. Bilateral STIC is present in ∼20% of cases. Because clonal Tp53 mutations are a defining feature of HGSC, including their associated STICs, we analyzed 4 cases of bilateral serous tubal intraepithelial neoplasia (STIN), including STIC and Tp53-mutated serous tubal intraepithelial lesions (STILs), associated with HGSC to determine whether they contained the same or different p53 mutations. Extracted DNA from STINs, concurrent HGSCs and control tissues was analyzed for mutations in all exons of Tp53. Sequencing was successful in 3 of the 4 cases, and an identical Tp53 mutation was detected in the HGSC and bilateral STINs in 2 of these 3 cases. One STIN was morphologically a STIL. These findings confirm that a subset of bilateral STINs share the same Tp53 mutation, implying that at least one of the STINs is an intraepithelial metastasis from either the contralateral STIN or HGSC. This study complements others addressing the multiple origins of STIN in the setting of existing HGSC. It further underscores the fact that potential overlap in biologic behavior between STILs and STICs as well as timing and direction of metastatic spread has yet to be resolved.


Asunto(s)
Carcinoma in Situ/patología , Cistadenocarcinoma Seroso/patología , Neoplasias de las Trompas Uterinas/patología , Carcinoma in Situ/genética , Cistadenocarcinoma Seroso/genética , Neoplasias de las Trompas Uterinas/genética , Femenino , Humanos , Mutación , Proteína p53 Supresora de Tumor/genética
13.
Int J Gynecol Pathol ; 38(3): 230-240, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-29750700

RESUMEN

A chemotherapy response score (CRS) system was recently described to assess the histopathologic response and prognosis of patients with tubo-ovarian high-grade serous carcinoma (HGSC) receiving neoadjuvant chemotherapy. The current study was performed as an independent assessment of this CRS system. We retrospectively identified advanced stage HGSC patients who received neoadjuvant chemotherapy and underwent interval debulking. If available, a hemotoxylin and eosin slide from the omentum and the adnexa was selected for the study. Slides were independently scored by 13 pathologists using the 3-tiered CRS system. Reviewers then received web-based training and rescored the slides. Overall survival and progression-free survival were estimated using the Kaplan-Meier method and compared using the log-rank test. A total of 68 patients with omental (n=65) and/or adnexal (n=59) slides were included in the study. Interobserver reproducibility was moderate for omentum (κ, 0.48) and poor for adnexa (κ, 0.40), which improved for omentum (κ, 0.62) but not for adnexa (κ, 0.38) after online training. For omental slides, a consensus CRS of 1/2 was associated with a shorter median progression-free survival (10.9 mo; 95% confidence interval, 9-14) than a CRS of 3 (18.9 mo; 95% CI, 18-24; P=0.020). In summary, a 3-tiered CRS system of hemotoxylin and eosin-stained omental deposits can yield prognostic information for HGSC patients receiving neoadjuvant chemotherapy, and web-based training improved reproducibility but did not alter determination of clinical outcomes. The CRS system may allow oncologists to identify potential nonresponders and triage HGSC patients for heightened observation and/or clinical trials.


Asunto(s)
Carcinoma/tratamiento farmacológico , Neoplasias Ováricas/tratamiento farmacológico , Anexos Uterinos/patología , Anexos Uterinos/cirugía , Anciano , Carcinoma/diagnóstico , Carcinoma/patología , Carcinoma/cirugía , Procedimientos Quirúrgicos de Citorreducción , Supervivencia sin Enfermedad , Femenino , Humanos , Estimación de Kaplan-Meier , Terapia Neoadyuvante , Variaciones Dependientes del Observador , Epiplón/patología , Epiplón/cirugía , Sistemas en Línea , Neoplasias Ováricas/diagnóstico , Neoplasias Ováricas/patología , Neoplasias Ováricas/cirugía , Pronóstico , Estudios Retrospectivos , Resultado del Tratamiento
14.
Endocr Pract ; 25(9): 908-917, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31170369

RESUMEN

Objective: Thyroid nodules with indeterminate cytology pose management challenges in clinical practice. The aim of this study was to determine the efficacy of ultrasound features in navigating clinical decision making in thyroid nodules with indeterminate cytology. Methods: We retrospectively reviewed ultrasound imaging from 186 adult patients with thyroid nodules and indeterminate cytology who underwent thyroidectomy at a quaternary hospital from 2010-2017. All nodules were classified based on the American Thyroid Association (ATA) and 2017 American College of Radiology Thyroid Imaging Reporting and Data System (ACR TI-RADS). Nodules were included if good quality pre-operative ultrasound imaging and surgical pathology were available. Results: A total of 202 thyroid nodules were included. The median age was 57 years; 82.8% were female. Risk of malignancy (ROM) in resected nodules with Bethesda 3 and 4 cytology was 19.4% and 30.3%, respectively. ATA high-suspicious and TI-RADS 5 nodules had high ROM, 100% in both systems for Bethesda 3 nodules; 66.7% and 50.0%, respectively, for Bethesda 4 nodules. For ATA very-low suspicious/TI-RADS 1 and 2, ROM was 0%. ROM in ATA low-suspicious/TI-RADS 3 nodules with Bethesda 3 cytology was lower (15.2% and 16.0%, respectively) than Bethesda 4 cytology (33.8% and 34.3%, respectively). ATA intermediate-suspicious/TI-RADS 4 nodules with Bethesda 4 cytology had a lower ROM (11.1% and 18.2%, respectively) than Bethesda 3 cytology (28.6 % and 31.6%, respectively). Conclusion: Using either the ATA or the TI-RADS system to risk-stratify nodules with indeterminate cytology may help clinicians plan better for additional diagnostic testing and treatment. Abbreviations: ACR = American College of Radiology; ATA = American Thyroid Association; AUS = atypia of undetermined significance; FLUS = follicular lesion of undetermined significance; FN = follicular neoplasm; PPV = positive predictive value; ROM = risk of malignancy; SFN = suspicious for follicular neoplasm; TI-RADS = Thyroid Imaging Reporting and Data System.


Asunto(s)
Neoplasias de la Tiroides , Nódulo Tiroideo , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Ultrasonografía
15.
Am J Emerg Med ; 37(7): 1322-1326, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-30528050

RESUMEN

OBJECTIVE: Physical therapy (PT) is commonly cited as a non-opioid pain strategy, and previous studies indicate PT reduces opioid utilization in outpatients with back pain. No study has yet examined whether PT is associated with lower analgesic prescribing in the ED setting. METHODS: This was a retrospective cohort study of discharged ED visits with a primary ICD-10 diagnosis relating to back or neck pain from 10/1/15 to 2/21/17 at an urban academic ED. Visits receiving a PT evaluation were matched with same-date visits receiving usual care. We compared the primary outcomes of opioid and benzodiazepine prescribing between the two cohorts using chi-squared test and multivariable logistic regression. RESULTS: 74 ED visits received PT during the study period; these visits were matched with 390 same-date visits receiving usual care. Opioid prescribing among ED-PT visits was not significantly higher compared to usual care visits on both unadjusted analysis (50% vs 42%, p = 0.19) and adjusted analysis (adjOR 1.05, 95% CI 0.48-2.28). However, benzodiazepine prescribing among ED-PT visits was significantly higher than usual care visits on both unadjusted (45% vs 23%, p < 0.001) and adjusted analysis (adjOR 3.65, 95% CI 1.50-8.83). CONCLUSIONS: In this single center study, ED back and neck pain visits receiving PT were no less likely to receive an opioid prescription and were more likely to receive a benzodiazepine than visits receiving usual care. Although prior studies demonstrate that PT may reduce opioid utilization in the subsequent year, these results indicate that analgesic prescribing is not reduced at the initial ED encounter.


Asunto(s)
Analgésicos Opioides/uso terapéutico , Analgésicos/uso terapéutico , Dolor de Espalda/terapia , Benzodiazepinas/uso terapéutico , Servicio de Urgencia en Hospital , Dolor de Cuello/terapia , Modalidades de Fisioterapia , Pautas de la Práctica en Medicina/estadística & datos numéricos , Dolor de Espalda/tratamiento farmacológico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Dolor de Cuello/tratamiento farmacológico , Estudios Retrospectivos
16.
Ann Surg Oncol ; 25(5): 1410-1417, 2018 May.
Artículo en Inglés | MEDLINE | ID: mdl-29520656

RESUMEN

BACKGROUND: Diagnostic hemithyroidectomy (HT) is the most widely recommended surgical procedure for a nodule with indeterminate cytology; however, additional details may make initial total thyroidectomy (TT) preferable. We sought to identify patient-specific factors (PSFs) associated with initial TT in patients with indeterminate thyroid nodules. METHODS: Retrospective analysis of all patients with a thyroid nodule ≥ 1 cm and initial cytology of atypia of undetermined significance or suspicious for follicular neoplasm between 2012 and 2015 who underwent thyroidectomy. Medical records were reviewed for patient demographics, neck symptoms, nodule size, cytology, molecular test results, final histopathology, and additional PSFs influencing surgical management. Variables were analyzed to determine associations with the use of initial TT. Logistic regression analyses were performed to identify independent associations. RESULTS: Of 325 included patients, 182/325 (56.0%) had HT and 143/325 (44.0%) had TT. While patient age and sex, nodule size, and cytology result were not associated with initial treatment, five PSFs were associated with initial TT (p < 0.0001). These included contralateral nodules, hypothyroidism, fluorodeoxyglucose avidity on positron emission tomography scan, family history of thyroid cancer, and increased surgical risk. At least one PSF was present in 126/143 (88.1%) TT patients versus 47/182 (25.8%) HT patients (p < 0.0001). Multivariate logistic regression analysis demonstrated that these variables were the strongest independent predictor of TT (odds ratio 45.93, 95% confidence interval 18.80-112.23, p < 0.001). CONCLUSIONS: When surgical management of an indeterminate cytology thyroid nodule was performed, several PSFs were associated with a preference by surgeons and patients for initial TT, which may be useful to consider in making decisions on initial operative extent.


Asunto(s)
Carcinoma/patología , Carcinoma/cirugía , Neoplasias Primarias Múltiples/cirugía , Nódulo Tiroideo/cirugía , Tiroidectomía/métodos , Anciano , Carcinoma/diagnóstico por imagen , Femenino , Fluorodesoxiglucosa F18 , Humanos , Hipotiroidismo/complicaciones , Masculino , Persona de Mediana Edad , Neoplasias Primarias Múltiples/diagnóstico por imagen , Neoplasias Primarias Múltiples/patología , Selección de Paciente , Tomografía de Emisión de Positrones , Estudios Retrospectivos , Nódulo Tiroideo/diagnóstico por imagen , Nódulo Tiroideo/genética , Nódulo Tiroideo/patología
17.
Gynecol Oncol ; 150(1): 67-72, 2018 07.
Artículo en Inglés | MEDLINE | ID: mdl-29751992

RESUMEN

OBJECTIVE: To evaluate the impact of insurance status on the stage of cervical cancer diagnosed and treated at a tertiary care center in Massachusetts and review the preceding screening history. METHODS: An IRB approved retrospective cohort study was conducted of patients with a diagnosis of cervical cancer treated at Brigham and Women's Hospital (BWH) between January 2011 and June 2016. Clinical and demographic data was extracted from the longitudinal medical record. Statistical analysis was performed using SAS. RESULTS: 117 cases of cervical cancer met the inclusion criteria during the study period. Most patients (76%) were diagnosed with stage I disease. On univariate analysis, compared to patients with private insurance, patients with public insurance or no documented insurance presented at older ages, were more likely to be non-white races, and present with advanced stage disease. In an adjusted model, the risk of being diagnosed with advanced stage disease persisted among women with public or no documented insurance, adjusted odds ratio (aOR) 4.13 (1.37-12.45). There was no difference in screening history among women with private vs. public insurance, p = 0.30. CONCLUSIONS: Despite access to insurance, patients with public issued insurance had an increased risk of presenting with advanced stage cervical cancer in this cohort. These data suggest that additional barriers to screening and prevention may exist and are important for future investigation.


Asunto(s)
Cobertura del Seguro/normas , Seguro de Salud/normas , Neoplasias del Cuello Uterino/diagnóstico , Adulto , Anciano , Estudios de Cohortes , Femenino , Humanos , Massachusetts , Persona de Mediana Edad , Estadificación de Neoplasias , Estudios Retrospectivos , Centros de Atención Terciaria , Neoplasias del Cuello Uterino/patología
18.
Am J Emerg Med ; 36(8): 1492-1496, 2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-29853343

RESUMEN

Emergency department-initiated physical therapy (ED PT) is an emerging resource in the United States, with the number of ED PT programs in the United States growing rapidly over the last decade. In this collaborative model of care, physical therapists are consulted by the treating ED physician to assist in the evaluation and treatment of a number of movement and functional disorders, such as low back pain, peripheral vertigo, and various gait disturbances. Patients receiving ED PT benefit from the physical therapist's expertise in musculoskeletal and vestibular conditions and from the individualized attention provided in a typical bedside evaluation and treatment session, which includes education on expected symptom trajectory, recommendations for activity modulation, and facilitated outpatient follow-up. Early data suggest that both physicians and patients view ED PT services favorably, and that ED PT is associated with improvement of several important clinical and operational outcomes. Hospital systems interested in building their own ED PT program may benefit from the key steps outlined in this review, as well as a summary of the typical clinical volumes and practice patterns encountered at existing programs around the country.


Asunto(s)
Servicio de Urgencia en Hospital , Enfermedades Musculoesqueléticas/terapia , Especialidad de Fisioterapia , Enfermedades Vestibulares/terapia , Humanos , Evaluación de Programas y Proyectos de Salud , Derivación y Consulta , Estados Unidos
19.
Gynecol Oncol ; 146(1): 69-73, 2017 07.
Artículo en Inglés | MEDLINE | ID: mdl-28479065

RESUMEN

Objective The purpose of this study was to determine the prevalence of incidentally discovered serous tubal intraepithelial carcinoma in women without a genetic risk for or history of high grade serous carcinoma (HGSC) in the gynecologic tract. METHODS: All pathology reports at our institution that included bilateral salpingectomies from January 2006-December 2011 were examined in women >50years old in which the entire tube or the distal one-third was examined histologically with the complete (proximal and distal fallopian tube) or modified (distal one third of the tube) SEE-FIM protocol. Cases were divided into: Group 1, a history of or known risk factors (BRCA1 or BRCA2 mutations) for HGSC and Group 2, those without these attributes for whom a STIC would be unexpected (incidental). Women undergoing unspecified "risk-reducing" procedures were included in Group 1. RESULTS: Of 4051 identified total, 2268 had complete examination of the distal fallopian tube and were age 50 or above. Of these, 1747 were in group 2. Two STICs were identified (0.1%), one associated with a grade 2 endometrial endometrioid adenocarcinoma and one with a low-grade ovarian serous carcinoma in the setting of a serous borderline tumor. CONCLUSIONS: Incidental STICs in women over age 50 are uncommon. However, the significance of lesser tubal atypias (0.3% in this study), risk of STIC in women with no epithelial pathology and the risk imposed by coexisting endometrioid neoplasia are unclear and require further study.


Asunto(s)
Neoplasias de las Trompas Uterinas/epidemiología , Neoplasias Quísticas, Mucinosas y Serosas/epidemiología , Boston/epidemiología , Neoplasias de las Trompas Uterinas/genética , Neoplasias de las Trompas Uterinas/cirugía , Femenino , Humanos , Persona de Mediana Edad , Clasificación del Tumor , Neoplasias Quísticas, Mucinosas y Serosas/genética , Neoplasias Quísticas, Mucinosas y Serosas/cirugía , Prevalencia
20.
Mod Pathol ; 29(8): 893-903, 2016 08.
Artículo en Inglés | MEDLINE | ID: mdl-27150160

RESUMEN

Extrauterine high-grade serous carcinomas can exhibit various histologic patterns including (1) classic architecture that is papillary, micropapillary and infiltrative and (2) solid, endometrioid, and transitional (ie, SET) patterns. Although the SET pattern has been associated with germline BRCA mutations, potential molecular underpinnings have not been fully investigated. DNA was isolated from 174 carcinomas of the fallopian tube, ovary, or peritoneum. Targeted next-generation sequencing was performed and single-nucleotide and copy number variants were correlated with morphologic subtype. Overall, 79% of tumors were classified as high-grade serous carcinoma (n=138), and the most common mutations in high-grade serous carcinomas were TP53 (94%), BRCA1 (25%), BRCA2 (11%), and ATM (7%). Among chemotherapy-naive high-grade serous carcinomas, 40 cases exhibited classic morphology and 40 cases had non-classic morphology (SET or ambiguous features). Mutations in homologous recombination pathways were seen across all tumor histotypes. High-grade serous carcinomas with homologous recombination mutations were six times more likely to be associated with non-classic histology (P=0.002) and were significantly more likely to be platinum sensitive and have improved progression-free survival (PFS) (P=0.007 and P=0.004, respectively). In a multivariate analysis adjusted for age, homologous recombination mutation status and increased copy number variants were independently associated with improved PFS (P=0.008 and P=0.005, respectively). These findings underscore the potential significance of variant morphologic patterns and comprehensive genomic analysis in high-grade serous carcinomas with potential implications for pathogenesis, as well as response to targeted therapies.


Asunto(s)
Biomarcadores de Tumor/genética , Neoplasias de las Trompas Uterinas/genética , Neoplasias de las Trompas Uterinas/patología , Conductos Paramesonéfricos/patología , Neoplasias Quísticas, Mucinosas y Serosas/genética , Neoplasias Quísticas, Mucinosas y Serosas/patología , Neoplasias Ováricas/genética , Neoplasias Ováricas/patología , Neoplasias Peritoneales/genética , Neoplasias Peritoneales/patología , Adulto , Anciano , Anciano de 80 o más Años , Variaciones en el Número de Copia de ADN , Análisis Mutacional de ADN/métodos , Supervivencia sin Enfermedad , Neoplasias de las Trompas Uterinas/mortalidad , Neoplasias de las Trompas Uterinas/terapia , Femenino , Dosificación de Gen , Predisposición Genética a la Enfermedad , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Estimación de Kaplan-Meier , Persona de Mediana Edad , Análisis Multivariante , Mutación , Clasificación del Tumor , Neoplasias Quísticas, Mucinosas y Serosas/mortalidad , Neoplasias Quísticas, Mucinosas y Serosas/terapia , Neoplasias Ováricas/mortalidad , Neoplasias Ováricas/terapia , Neoplasias Peritoneales/mortalidad , Neoplasias Peritoneales/terapia , Fenotipo , Modelos de Riesgos Proporcionales , Factores de Riesgo
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