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1.
Sci Rep ; 14(1): 15095, 2024 07 02.
Artigo em Inglês | MEDLINE | ID: mdl-38956125

RESUMO

Nanogels offer hope for precise drug delivery, while addressing drug delivery hurdles is vital for effective prostate cancer (PCa) management. We developed an injectable elastin nanogels (ENG) for efficient drug delivery system to overcome castration-resistant prostate cancer (CRPC) by delivering Decursin, a small molecule inhibitor that blocks Wnt/ßcatenin pathways for PCa. The ENG exhibited favourable characteristics such as biocompatibility, flexibility, and low toxicity. In this study, size, shape, surface charge, chemical composition, thermal stability, and other properties of ENG were used to confirm the successful synthesis and incorporation of Decursin (DEC) into elastin nanogels (ENG) for prostate cancer therapy. In vitro studies demonstrated sustained release of DEC from the ENG over 120 h, with a pH-dependent release pattern. DU145 cell line induces moderate cytotoxicity of DEC-ENG indicates that nanomedicine has an impact on cell viability and helps strike a balance between therapeutics efficacy and safety while the EPR effect enables targeted drug delivery to prostate tumor sites compared to free DEC. Morphological analysis further supported the effectiveness of DEC-ENG in inducing cell death. Overall, these findings highlight the promising role of ENG-encapsulated decursin as a targeted drug delivery system for CRPC.


Assuntos
Elastina , Nanogéis , Neoplasias de Próstata Resistentes à Castração , Masculino , Elastina/química , Humanos , Linhagem Celular Tumoral , Nanogéis/química , Neoplasias de Próstata Resistentes à Castração/tratamento farmacológico , Neoplasias de Próstata Resistentes à Castração/patologia , Neoplasias de Próstata Resistentes à Castração/metabolismo , Sistemas de Liberação de Medicamentos , Sobrevivência Celular/efeitos dos fármacos , Liberação Controlada de Fármacos , Antineoplásicos/farmacologia , Antineoplásicos/química , Antineoplásicos/administração & dosagem , Benzopiranos , Butiratos
2.
Indian J Dent Res ; 32(1): 120-123, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34269249

RESUMO

Accidental detection of asymptomatic clinically suspicious lesions is a common occurrence in routine clinical examination of the oral cavity. In certain cases, these lesions may mimic benign lesions further adding to confusion. In this case report, we have discussed the case of a 51-year-old male patient with an asymptomatic palatal mass which was detected during a routine dental check-up and subsequently confirmed to be an adenoid cystic carcinoma (ACC) arising from the minor salivary glands. The patient underwent right partial maxillectomy followed by radiation therapy and has been disease-free for 6 years and is on follow-up. ACC is a malignant tumour of the salivary glands commonly occurring in the palate, characterized by a slow indolent growth phase, with a high predilection for late recurrences which can be local or systemic. This article describes the importance of recognizing this clinical entity as a differential diagnosis in the evaluation of asymptomatic palatal lesions to enable early diagnosis and institution of appropriate treatment to successfully treat the disease.


Assuntos
Carcinoma Adenoide Cístico , Neoplasias das Glândulas Salivares , Carcinoma Adenoide Cístico/diagnóstico , Diagnóstico Diferencial , Humanos , Masculino , Pessoa de Meia-Idade , Palato , Neoplasias das Glândulas Salivares/diagnóstico , Glândulas Salivares Menores
3.
J Cancer Res Ther ; 17(1): 136-141, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33723144

RESUMO

BACKGROUND: Herbal supplements (HS) are one of the most commonly used complementary and alternative medicines in cancer. Reduced therapeutic efficacy of prescription anticancer agents through unwarranted herb-drug interactions is a major efficacy/safety concern. In view of the rising cancer prevalence in India along with a high degree of reliance and cultural acceptability in favor of traditional medicine drugs, prevalence data exclusively of HS usage during cancer treatment are of considerable epidemiological significance. METHODOLOGY: This questionnaire-based prospective observational study aimed at estimating the prevalence of HS among cancer patients during treatment at our tertiary care medical center. Taken on a population of 220 patients within a period of 9 months, data were generated by a customized validated questionnaire and the same processed by IBM SPSS Statistics for Windows, version XXIV, Armonk, NY: IBM Corp. Differences between HS use and nonuse with respect to demographic, disease, and treatment characteristics were assessed by Chi-square test. For examining the latter variables as possible predictors of HS usage, they were entered into bivariate logistic regression with odds ratio and confidence intervals calculated for each. RESULTS: Out of 220 patients, 57 (26%) were HS users and 163 (74%) were nonusers. Majority of the users (42.1%) were on self-prepared folklore herbal medicine postdiagnosis of cancer (57.9%), the most common reason cited being symptom palliation (35.1%) on the advice of friends and family (64.9%). Fear of disapproval was the most common reason cited (68.4%) for not disclosing HS usage to the physician. CONCLUSION: Chemotherapy and unemployment are predictors of HS usage, and there is a significant association between occupation status and HS usage. This first study on HS prevalence among South Indian population proposes the need for a more robust evidence base for understanding all aspects of HS use in cancer.


Assuntos
Suplementos Nutricionais/estatística & dados numéricos , Emprego/estatística & dados numéricos , Conhecimentos, Atitudes e Prática em Saúde , Neoplasias/tratamento farmacológico , Fitoterapia/métodos , Inquéritos e Questionários/estatística & dados numéricos , Adulto , Feminino , Humanos , Índia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Adulto Jovem
4.
South Asian J Cancer ; 9(1): 43-46, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31956621

RESUMO

BACKGROUND: Outcomes with conventional treatment are poor in patients with squamous cell carcinoma of head and neck (SCCHN). Treatment options are further limited for patients ineligible to receive platinum-based chemotherapy due to various factors such as geriatric age, comorbidity, and organ dysfunctions. The present study retrospectively evaluated the effectiveness of nimotuzumab when added to radiation therapy in unresectable, locally advanced SCCHN patients who were ineligible for platinum-based chemotherapy. MATERIALS AND METHODS: The medical records of 21 patients with unresectable, locally advanced head-and-neck cancer and histologically confirmed squamous cell carcinoma who were ineligible for platinum-based chemotherapy treated with nimotuzumab and intensity-modulated radiation therapy (IMRT) from 2012 to 2017 were retrospectively analyzed. The tumor response rate and overall survival (OS) were analyzed. Patients were assessed for toxicity and adverse events (AEs) as per CTCAE version 4. Statistical analysis was performed using SPSS software. RESULTS: The median number of doses of nimotuzumab received was 6, and median dose of radiotherapy was 60 Gy. The tumor response rate was calculated at 24 weeks after the completion of radiotherapy and was as follows: 76.2% (16) of patients showed complete response, 9.5% (2) of patients showed partial response, 4.8% (1) of patients showed stable disease, and 9.5% (2) of patients showed progression of disease. Median OS was 21 months, whereas 1-year survival rate was 63.7%. No Grade 3 or Grade 4 AEs were observed. CONCLUSION: Nimotuzumab with IMRT has achieved promising clinical outcomes in unresectable locally advanced SCCHN patients who are ineligible for platinum-based chemotherapy, without accumulation of toxicity.

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