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1.
J Am Geriatr Soc ; 2024 Mar 05.
Artigo em Inglês | MEDLINE | ID: mdl-38441308

RESUMO

BACKGROUND: Decisions regarding resuscitation after cardiac arrest are critical from ethical, patient satisfaction, outcome, and healthcare cost standpoints. Physician-reported discussion barriers include topic discomfort, fear of time commitment, and difficulty articulating end-of-life concepts. The influence of language used in these discussions has not been tested. This study explored whether utilizing the alternate term "allow (a) natural death" changed code status decisions in hospitalized patients versus "do not resuscitate" (DNR). METHODS: All patients age 65 and over admitted to a general medicine hospital teaching service were screened (English-speaking, not ICU-level care, no active psychiatric illness, no substance misuse, no active DNR). Participants were randomized to resuscitation discussions with either DNR or "allow natural death" as the "no code" phrasing. Outcomes included patient resuscitation decision, satisfaction with and duration of the conversation, and decision correlation with illness severity and predicted resuscitation success. RESULTS: 102 participants were randomized to the "allow natural death" (N = 49) or DNR (N = 53) arms. The overall "no code" rate for our sample of hospitalized general medicine inpatients age >65 was 16.7%, with 13% in the DNR and 20.4% in the "allow natural death" arms (p = 0.35). Discussion length was similar in the DNR and "allow natural death" arms (3.9 + 3.2 vs. 4.9 + 3.9 minutes), and not significantly different (p = 0.53). Over 90% of participants were highly satisfied with their code status decision, without difference between arms (p = 0.49). CONCLUSIONS: Participants' code status discussions did not differ in "no code" rate between "allow natural death" and DNR arms but were short in length and had high patient satisfaction. Previously reported code status discussion barriers were not encountered. It is appropriate to screen code status in all hospitalized patients regardless of phrasing used.

2.
JAAD Case Rep ; 27: 124-127, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36046805
3.
Discov Oncol ; 13(1): 16, 2022 Mar 21.
Artigo em Inglês | MEDLINE | ID: mdl-35307758

RESUMO

BACKGROUND: Hemophagocytic lymphohistiocytosis (HLH) is a rare disease resulting from the overactivation of the immune system due to under regulation of cytotoxic lymphocytes, macrophages and natural killer (NK) cells. HLH is associated with malignancies, infections, autoimmune disorders and rarely AIDS and is rapidly fatal. CASE PRESENTATION: This case report identified a 53 year old male with acquired immunodeficiency syndrome (AIDS) who presented with neutropenic fever of unknown origin. He had two previous hospitalizations prior to the hospitalization diagnosing HLH. The first led to a diagnosis of drug fevers in the setting of treatment for thrombotic thrombocytopenic purpura and subsequent hospitalization led to empiric treatment of hospital acquired pneumonia after workup for intermittent fevers was negative. He was discharged but readmitted 10 days after for recurrence of neutropenic fevers. During this final hospitalization, he was found to have elevated liver enzymes, ferritin, triglycerides and soluble IL-2 receptor with persistent fevers, new splenomegaly and bicytopenia meeting the 2004 HLH criteria. Bone marrow biopsy confirmed the diagnosis of HLH as well as EBV associated large B-cell lymphoma. The patient improved on treatment with steroids, rituximab, tocilizumab, and chemotherapy but ultimately passed away due to refractory septic shock from multi-drug resistant Klebsiella pneumoniae. CONCLUSION: This novel case highlights a patient diagnosed with HLH in the setting of several risk factors for the disease, including AIDS, B-cell lymphoma and EBV. Additionally, this case highlights the importance of early consideration of HLH in the setting of neutropenic fever without clear infectious etiology and search for malignancy associated reasons for HLH especially in immunocompromised patients.

4.
Geroscience ; 41(6): 861-869, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31761958

RESUMO

Aging is a major risk factor for the majority of human diseases, and the development of interventions to reduce the intrinsic rate of aging is expected to reduce the risk for age-related diseases including cardiovascular disease, cancer, and dementia. In the skin, aging manifests itself in photodamage and dermal atrophy, with underlying tissue reduction and impaired barrier function. To determine whether rapamycin, an FDA-approved drug targeting the mechanistic target of rapamycin (mTOR) complex, can reduce senescence and markers of aging in human skin, an exploratory, placebo-controlled, interventional trial was conducted in a clinical dermatology setting. Participants were greater than 40 years of age with evidence of age-related photoaging and dermal volume loss and no major morbidities. Thirty-six participants were enrolled in the study, and nineteen discontinued or were lost to follow-up. A significant (P = 0.008) reduction in p16INK4A protein levels and an increase in collagen VII protein levels (P = 0.0077) were observed among participants at the end of the study. Clinical improvement in skin appearance was noted in multiple participants, and immunohistochemical analysis revealed improvement in histological appearance of skin tissue. Topical rapamycin reduced the expression of the p16INK4A protein consistent with a reduction in cellular senescence. This change was accompanied by relative improvement in clinical appearance of the skin and histological markers of aging and by an increase in collagen VII, which is critical to the integrity of the basement membrane. These results indicate that rapamycin treatment is a potential anti-aging therapy with efficacy in humans.Trial registration ClinicalTrials.gov Identifier: NCT03103893.


Assuntos
Sirolimo/administração & dosagem , Envelhecimento da Pele/efeitos dos fármacos , Dermatopatias/tratamento farmacológico , Pele/efeitos dos fármacos , Administração Tópica , Adulto , Biópsia , Senescência Celular/efeitos dos fármacos , Colágeno Tipo VII/metabolismo , Inibidor p16 de Quinase Dependente de Ciclina/metabolismo , Feminino , Humanos , Imuno-Histoquímica , Imunossupressores/administração & dosagem , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Pele/metabolismo , Pele/patologia , Dermatopatias/metabolismo , Dermatopatias/patologia
5.
Geroscience ; 40(2): 193-199, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29651745

RESUMO

Cellular senescence is a central component of the aging process. This cellular response has been found to be induced by multiple forms of molecular damage and senescent cells increase in number with age in all tissues examined to date. We have examined the correlation with age of two key proteins involved in the senescence program, p16INK4a and HMGB2. These proteins are involved in cell cycle arrest and chromatin remodeling during senescence. Circulating levels of these markers increases with age and correlates with functional status. The levels of HMGB2 appear to be significantly correlated with functional status, whereas p16INK4a levels are more weakly associated. Interestingly, there is a strong correlation between the two proteins independent of age. In particular, a single high-functioning individual over 90 years of age displays a disproportionately low level of HGMB2. The results suggest that with improved testing methodology, it may be possible to monitor circulating protein markers of senescence in human populations.


Assuntos
Atividades Cotidianas , Senescência Celular/fisiologia , Inibidor p16 de Quinase Dependente de Ciclina/metabolismo , Proteína HMGB2/metabolismo , Saúde Mental , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Biomarcadores/metabolismo , Estudos de Casos e Controles , Células Cultivadas , Ensaio de Imunoadsorção Enzimática/métodos , Feminino , Humanos , Masculino , Limitação da Mobilidade , Aptidão Física/fisiologia , Valores de Referência , Medição de Risco , Estudos de Amostragem , Adulto Jovem
6.
Ann N Y Acad Sci ; 1418(1): 95-105, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29377178

RESUMO

Both methionine restriction and rapamycin treatment are robust longevity-enhancing regimens for which the mechanisms remain unclear. Cellular senescence is a major contributor to the aging process, and we find that both the methionine and rapamycin regimens delay or prevent activation of the senescence program in human cells. Using a transcriptome-wide analysis, we examined the impact of methionine restriction and rapamycin treatment on senescence-associated gene expression in human cardiac fibroblasts. Our findings have been integrated into gene expression data sets from human lung and skin fibroblasts during senescence. The data demonstrate both common and tissue-specific aspects to the senescent phenotype in these cell types. For example, cardiac fibroblasts express brain naturetic peptide, a clinically relevant marker for cardiac failure, whereas senescent cells from all three tissues express at least one of the insulin-like growth factor (IGF)-binding proteins. The IGF-binding proteins are tissue-specific mediators of IGF-1, a growth factor required for proliferation of all tissues. These data suggest that senescent cells serve tissue-specific roles. Moreover, the prolongevity regimens produce distinct patterns of gene expression.


Assuntos
Fibroblastos/efeitos dos fármacos , Expressão Gênica , Metionina/administração & dosagem , Miocárdio/metabolismo , Sirolimo/farmacologia , Biomarcadores/metabolismo , Senescência Celular/genética , Fibroblastos/citologia , Fibroblastos/metabolismo , Humanos , Miocárdio/citologia , Análise de Componente Principal , Reprodutibilidade dos Testes
7.
J Hematol ; 7(2): 76-78, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-32300417

RESUMO

Hermansky-Pudlak syndrome (HPS) is a multi-system disorder characterized by oculocutaneous albinism and platelet storage deficiency, which can also lead to prolonged bleeding, pulmonary fibrosis, and granulomatous colitis. Lysosome-related organelle dysfunction is responsible for many of the systemic manifestations, including dense body and melanosome deficiency. This report aims to review a case of HPS type 3 in a male Puerto Rican patient who presented to our clinic.

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