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1.
ACS Appl Mater Interfaces ; 16(3): 4071-4088, 2024 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-38194589

RESUMO

Surgical resection remains the most common method of tumor treatment; however, the high recurrence and metastasis after surgery need to be solved urgently. Herein, we report an injectable zwitterionic hydrogel based on "thiol-ene" click chemistry containing doxorubicin (DOX) and a macrophage membrane (MM)-coated 1-methyl-tryptophan (1-MT)-loaded polyamide-amine dendrimer (P-DOX/1MT) for preventing the postoperative recurrence of tumors. The results indicated that P-DOX/1MT@MM exhibited enhanced recognition and uptake of the dendrimer by tumor cells and induced the immunogenic cell death. In the mice tumor model, the P-DOX/1MT@MM-Gel exhibited high therapeutic efficiency, which could significantly reduce the recurrence of the tumor, including suppressing tumor growth, promoting dendritic cell maturation, and increasing tumor-infiltrating cytotoxic T lymphocytes. The mechanism analysis revealed that the hydrogel greatly reduces the side effects to normal tissues and significantly improves its therapeutic effect. 1MT in the hydrogel is released more rapidly, improving the tumor suppressor microenvironment and increasing the tumor cell sensitivity to DOX. Then, the DOX in the P-DOX/1MT@MM effectively eliminatedo the residual tumor cells and exerted enhanced toxicity. In conclusion, this novel injectable hydrogel that combines chemotherapy and immunotherapy has the property of sequential drug release and is a promising strategy for preventing the postoperative recurrence of tumors.


Assuntos
Dendrímeros , Neoplasias , Animais , Camundongos , Hidrogéis/química , Micelas , Dendrímeros/farmacologia , Dendrímeros/uso terapêutico , Neoplasias/tratamento farmacológico , Doxorrubicina/química , Imunoterapia , Linhagem Celular Tumoral , Microambiente Tumoral
2.
J Pharm Bioallied Sci ; 15(Suppl 2): S1056-S1058, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37694084

RESUMO

In several regions throughout the globe, caesarean sections constitute the most common nonobstetric surgery, followed by hysterectomy, which is the surgical excision of the uterus. While it is not the only solution for reproductive organ issues, it is the most effective technique to treat many illnesses over the long term. The uterus is a very critical reproductive organ for all age groups as this is not only essential for giving birth but also for hormonal-related physiology in women's life. The quality of life is impacted by a number of hysterectomy-related effects on females. Physical, psychological, environmental, and social relations are some of these impacts. All EuroQol five-dimensions (EQ5D) subscales significantly improved, as per the research 's findings. Preoperative psychosocial status, perioperative pain, indication of hysterectomy, complications occur during surgery, and mode of hysterectomy postoperative infection had been discovered as determinants of quality of life outcome following hysterectomy. In most of the subjects we noticed small, however, noticable improvements in all component of EQ5D Scale. The strengths of EQ5D questionnaire lie in its simplicity and moreover it is available in several languages.

3.
Heart Lung ; 50(1): 192-196, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32522418

RESUMO

BACKGROUND: To date, studies have provided conflicting results regarding the outcomes of patients with Idiopathic Pulmonary Fibrosis (IPF) admitted to the ICU with acute respiratory failure (ARF). OBJECTIVE: To understand the characteristics and outcomes of these patients. METHODS: Retrospective study using a large single-center ICU database. We identified 48 unique patients with IPF admitted for ARF from 2001-2012. RESULTS: The most common causes of ARF were IPF exacerbation and pneumonia. The overall hospital mortality rate was 43.8% and was 56.7% in those who required invasive mechanical ventilation (IMV). In patients requiring IMV for IPF exacerbation, the mortality rate was 81.3%. In multiple regression analysis, the presence of diabetes mellitus was associated with decreased mortality whereas the need for IMV was associated with increased mortality. CONCLUSIONS: Although the overall mortality rate for IPF patients with ARF has improved, the need for IMV due to IPF exacerbations is associated with increased mortality.


Assuntos
Fibrose Pulmonar Idiopática , Insuficiência Respiratória , Doença Aguda , Humanos , Fibrose Pulmonar Idiopática/complicações , Fibrose Pulmonar Idiopática/epidemiologia , Fibrose Pulmonar Idiopática/terapia , Unidades de Terapia Intensiva , Respiração Artificial , Insuficiência Respiratória/etiologia , Insuficiência Respiratória/terapia , Estudos Retrospectivos
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