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1.
Medicina (Kaunas) ; 60(9)2024 Sep 09.
Artículo en Inglés | MEDLINE | ID: mdl-39336513

RESUMEN

Background and Objectives: The treatment of advanced and metastatic lung cancer is multimodal, and it is coordinated by a multidisciplinary team. Anxiety and depression occur frequently in patients with lung cancer, creating considerable discomfort in therapeutic management. At the same time, these psychoemotional symptoms affect the patients' quality of life. Objective: This research seeks to identify correlations both between anxiety and depression and the patients' performance statuses, as well as between anxiety and depression and the type of treatment: radiotherapy, chemotherapy, tyrosine kinase inhibitors (TKI), immunotherapy and palliative care. Materials and Methods: The study evaluated 105 patients with lung cancer from two oncologic centers. Patients were assessed for anxiety and depression using the questionnaire Hospital Anxiety and Depression Scale (HADS). The HADS is a self-report rating scale of 14 items. It measures anxiety and depression, and has two subscales. There are seven items for each subscale. There are 4-point Likert scale ranging from 0 to 3. For each subscale, the score is the sum of the seven items, ranging from 0 to 21. Results: The most powerful correlation with statistical significance was observed between the IT type of treatment (immunotherapy) and the normal level of anxiety, PC = 0.82 (p < 0.001) as well as the normal level of depression. Palliative treatment was correlated with anxiety and depression, both borderline and abnormal. For ECOG 3-4 performance status and abnormal anxiety, respectively, abnormal depression was significantly associated. Also, continuous hospitalization was associated with abnormal anxiety and depression. Conclusions: Early assessments of anxiety and depression are necessary in patients with advanced and metastatic lung cancer, with unfavorable performance status, who have been admitted to continuous hospitalization, and who require palliative care.


Asunto(s)
Ansiedad , Depresión , Neoplasias Pulmonares , Humanos , Neoplasias Pulmonares/psicología , Neoplasias Pulmonares/complicaciones , Femenino , Masculino , Persona de Mediana Edad , Ansiedad/psicología , Anciano , Depresión/etiología , Depresión/psicología , Encuestas y Cuestionarios , Calidad de Vida/psicología , Adulto , Cuidados Paliativos/métodos , Cuidados Paliativos/psicología , Anciano de 80 o más Años
2.
Medicina (Kaunas) ; 59(2)2023 Jan 26.
Artículo en Inglés | MEDLINE | ID: mdl-36837431

RESUMEN

Background and Objectives: This study aimed to assess the impact of clinical prognostic factors and propose a prognostic score that aids the clinician's decision in estimating the risk for patients in clinical practice. Materials and Methods: The study included 195 patients diagnosed with ovarian adenocarcinoma. The therapeutic strategy involved multidisciplinary decisions: surgery followed by adjuvant chemotherapy (80%), neoadjuvant chemotherapy followed by surgery (16.4%), and only chemotherapy in selected cases (3.6%). Results: After a median follow-up of 68 months, in terms of progression-free survival (PFS) and overall survival (OS), Eastern Cooperative Oncology Group (ECOG) performance status of 1 and 2 vs. 0 (hazard ratio-HR = 2.71, 95% confidence interval-CI, 1.96-3.73, p < 0.001 for PFS and HR = 3.19, 95%CI, 2.20-4.64, p < 0.001 for OS), menopausal vs. premenopausal status (HR = 2.02, 95%CI, 1.35-3,0 p < 0.001 and HR = 2.25, 95%CI = 1.41-3.59, p < 0.001), ascites (HR = 1.95, 95%CI 1.35-2.80, p = 0.03, HR = 2.31, 95%CI = 1.52-3.5, p < 0.007), residual disease (HR = 5.12, 95%CI 3.43-7.65, p < 0.0001 and HR = 4.07, 95%CI = 2.59-6.39, p < 0.0001), and thrombocytosis (HR = 2.48 95%CI = 1.72-3.58, p < 0.0001, HR = 3.33, 95%CI = 2.16-5.13, p < 0.0001) were associated with a poor prognosis. An original prognostic score including these characteristics was validated using receiver operating characteristic (ROC) curves (area under the curve-AUC = 0.799 for PFS and AUC = 0.726 for OS, p < 0.001). The median PFS for patients with none, one, two, three, or four (or more) prognostic factors was not reached, 70, 36, 20, and 12 months, respectively. The corresponding median overall survival (OS) was not reached, 108, 77, 60, and 34 months, respectively. Conclusions: Several negative prognostic factors were identified: ECOG performance status ≥ 1, the presence of ascites and residual disease after surgery, thrombocytosis, and menopausal status. These led to the development of an original prognostic score that can be helpful in clinical practice.


Asunto(s)
Adenocarcinoma , Neoplasias Ováricas , Trombocitosis , Femenino , Humanos , Pronóstico , Ascitis , Carcinoma Epitelial de Ovario , Estudios Retrospectivos , Neoplasias Ováricas/patología
3.
Medicina (Kaunas) ; 58(9)2022 Sep 07.
Artículo en Inglés | MEDLINE | ID: mdl-36143915

RESUMEN

Over the last years, repurposed agents have provided growing evidence of fast implementation in oncology treatment such as certain antimalarial, anthelmintic, antibiotics, anti-inflammatory, antihypertensive, antihyperlipidemic, antidiabetic agents. In this study, the four agents of choice were present in our patients' daily treatment for nonmalignant-associated pathology and have known, light toxicity profiles. It is quite common for a given patient's daily administration schedule to include two or three of these drugs for the duration of their treatment. We chose to review the latest literature concerning metformin, employed as a first-line treatment for type 2 diabetes; mebendazole, as an anthelmintic; atorvastatin, as a cholesterol-lowering drug; propranolol, used in cardiovascular diseases as a nonspecific inhibitor of beta-1 and beta-2 adrenergic receptors. At the same time, certain key action mechanisms make them feasible antitumor agents such as for mitochondrial ETC inhibition, activation of the enzyme adenosine monophosphate-activated protein kinase, amelioration of endogenous hyperinsulinemia, inhibition of selective tyrosine kinases (i.e., VEGFR2, TNIK, and BRAF), and mevalonate pathway inhibition. Despite the abundance of results from in vitro and in vivo studies, the only solid data from randomized clinical trials confirm metformin-related oncological benefits for only a small subset of nondiabetic patients with HER2-positive breast cancer and early-stage colorectal cancer. At the same time, clinical studies confirm metformin-related detrimental/lack of an effect for lung, breast, prostate cancer, and glioblastoma. For atorvastatin we see a clinical oncological benefit in patients and head and neck cancer, with a trend towards radioprotection of critical structures, thus supporting the role of atorvastatin as a promising agent for concomitant association with radiotherapy. Propranolol-related increased outcomes were seen in clinical studies in patients with melanoma, breast cancer, and sarcoma.


Asunto(s)
Antihelmínticos , Antimaláricos , Antineoplásicos , Neoplasias de la Mama , Diabetes Mellitus Tipo 2 , Inhibidores de Hidroximetilglutaril-CoA Reductasas , Metformina , Adenosina Monofosfato/uso terapéutico , Antagonistas Adrenérgicos beta/uso terapéutico , Antihelmínticos/uso terapéutico , Antibacterianos/uso terapéutico , Antihipertensivos/uso terapéutico , Antimaláricos/uso terapéutico , Antineoplásicos/uso terapéutico , Atorvastatina/uso terapéutico , Neoplasias de la Mama/patología , Colesterol , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Humanos , Inhibidores de Hidroximetilglutaril-CoA Reductasas/farmacología , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Hipoglucemiantes/uso terapéutico , Masculino , Mebendazol/uso terapéutico , Metformina/uso terapéutico , Ácido Mevalónico/uso terapéutico , Propranolol/uso terapéutico , Proteínas Quinasas/metabolismo , Proteínas Quinasas/uso terapéutico , Proteínas Proto-Oncogénicas B-raf , Receptores Adrenérgicos beta 2/uso terapéutico , Tirosina
4.
Chirurgia (Bucur) ; 116(1): 16-23, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33638322

RESUMEN

This review on recently published literature aims to summarize published data on pathologic complete response following neoadjuvant treatment in biopsy proven locally advanced rectal cancer patients. Published articles referring to pCR rectal cancer patients were identified using PubMed search. Eleven relevant articles were selected, based on tumor, treatment, and patient characteristics reporting. As a conclusion, rectal cancer patients with the highest chances of complete clinical or pathological response to neoadjuvant treatment are males, who are around 60 years, diagnosed with well or moderate differentiated locally advanced rectal cancer.


Asunto(s)
Terapia Neoadyuvante , Neoplasias del Recto , Biopsia , Humanos , Estadificación de Neoplasias , Neoplasias del Recto/patología , Neoplasias del Recto/terapia , Recto/patología , Recto/cirugía , Resultado del Tratamiento
5.
Diagnostics (Basel) ; 13(2)2023 Jan 04.
Artículo en Inglés | MEDLINE | ID: mdl-36672985

RESUMEN

Metastatic lesions of the spine occur in up to 40% of cancer patients and are a frequent source of pain and neurologic deficit due to cord compression. Palliative radiotherapy is the main first-intent local treatment in the form of single-fraction radiotherapy or fractionated courses. Reirradiation is a viable option for inoperable patients where spinal decompression is needed but with an increased risk of radiation-induced myelopathy (RM) and subsequent neurologic damage. This review summarizes reported data on local treatment options after initial irradiation in patients with relapsed spine metastasis and key dosimetric correlations between the risk of spinal cord injury and reirradiation technique, total dose, and time between treatments. The Linear Quadratic (LQ) model was used to convert all the published doses into biologically effective doses and normalize them to EQD2. For 3D radiotherapy, authors used cumulative doses from 55.2 Gy2/2 to 65.5 Gy2/2 EQD2 with no cases of RM mentioned. We found little evidence of RM after SBRT in the papers that met our criteria of inclusion, usually at the median reported dose to critical neural tissue around 93.5 Gy2/2. There is a lack of consistency in reporting the spinal cord dose, which leads to difficulty in pooling data.

6.
Diagnostics (Basel) ; 13(2)2023 Jan 05.
Artículo en Inglés | MEDLINE | ID: mdl-36673007

RESUMEN

In 2021, the 5th edition of the WHO Classification of Tumors of the Central Nervous System (WHO-CNS5) was published as the sixth volume of the international standard for brain and spinal cord tumor classification. The most remarkable practical change in the current classification involves grading gliomas according to molecular characterization. IDH mutant (10%) and IDH wild-type tumors (90%) are two different entities that possess unique biological features and various clinical outcomes regarding treatment response and overall survival. This article presents two comparative cases that highlight the clinical importance of these new classification standards. The first clinical case aimed to provide a comprehensive argument for determining the IDH status in tumors initially appearing as low-grade astrocytoma upon histologic examination, thus underlining the importance of the WHO-CNS5. The second case showed the implications of the histologic overdiagnosis of glioblastoma using the previous classification system with a treatment span of 7 years that proceeded through full-dose re-irradiation up to metronomic therapy. The new WHO-CNS5 classification significantly impacted complex neurooncological cases, thus changing the initial approach to a more precise therapeutic management.

7.
Diagnostics (Basel) ; 13(1)2023 Jan 03.
Artículo en Inglés | MEDLINE | ID: mdl-36611458

RESUMEN

BACKGROUND: Vascular endothelial growth factor (VEGF) plays an important role in tumor progression in ovarian cancer, but the complex mechanism and interaction with oxidative stress are not fully understood. METHODS: A prospective study included 52 patients with ovarian adenocarcinoma stage IIIA-IV. Serum VEGF and reactive oxygen species (ROS) such as malondialdehyde and ceruloplasmin were measured. RESULTS: VEGF levels were elevated (mean 1014.7 ± 165 pg/mL), especially in patients with macroscopic residual disease (1058 vs. 810 pg/mL, p = 0.0001). Median progression-free survival (PFS) and overall survival (OS) were 6 and 40 months in patients with a very high VEGF (over 1200 pg/mL), 11 and 48 months in patients with VEGF between 1000-1200 pg/mL, 18 and 84 months in patients with VEGF between 800-1000 pg/mL, and not reached in patients with normal VEGF. Increased VEGF values were associated with a 2.6-fold increased risk of disease progression (HR = 2.60, 95% CI 1.69-3.99), and a 1.4-fold increased risk of death (HR = 1.4, 95% CI 1.15-1.91, p = 0.002). Receiver operator characteristic (ROC) curves were used to validate VEGF as a prognostic factor and the area under the curve (AUC) was 0.814, p = 0.036 for PFS and 0.729, p = 0.043, for OS. There was a positive correlation between VEGF and malondialdehyde, Pearson coefficient of 0.35, p = 0.0001. CONCLUSIONS: VEGF and malondialdehyde are important prognostic markers in ovarian cancer, especially in macroscopic residual disease, and there is a positive correlation between angiogenesis and oxidative stress.

8.
Diagnostics (Basel) ; 13(5)2023 Feb 24.
Artículo en Inglés | MEDLINE | ID: mdl-36900020

RESUMEN

The microbiota is the complex community of microorganisms that populate a particular environment in the human body, whereas the microbiome is defined by the entire habitat-microorganisms and their environment. The most abundant and, therefore, the most studied microbiome is that of the gastrointestinal tract. However, the microbiome of the female reproductive tract is an interesting research avenue, and this article explores its role in disease development. The vagina is the reproductive organ that hosts the largest number of bacteria, with a healthy profile represented mainly by Lactobacillus spp. On the other hand, the female upper reproductive tract (uterus, Fallopian tubes, ovaries) contains only a very small number of bacteria. Previously considered sterile, recent studies have shown the presence of a small microbiota here, but there are still debates on whether this is a physiologic or pathologic occurrence. Of particular note is that estrogen levels significantly influence the composition of the microbiota of the female reproductive tract. More and more studies show a link between the microbiome of the female reproductive tract and the development of gynecological cancers. This article reviews some of these findings.

9.
Molecules ; 17(9): 10355-69, 2012 Aug 29.
Artículo en Inglés | MEDLINE | ID: mdl-22932216

RESUMEN

Green tea extracts (GTEs) as well as their main component, the polyphenol epigallocatechin gallate (EGCG), are known for their versatile antioxidant, antimicrobial, antitumoral or anti-inflammatory effects. In spite of the huge beneficial action, there is increasing evidence that under certain conditions green tea and its components can be detrimental to living organisms. Using Saccharomyces cerevisiae strains with various defects in the response to oxidative stress, we found that GTEs or EGCG act in synergy with visible light, exhibiting either deleterious or protective effects depending on the solvent employed. Similar synergistic effects could be observed under singlet oxygen-generating conditions, such as light exposure in the presence of photosensitizers or UV-A irradiation, therefore solvent variance may represent a powerful tool to modulate the preparation of green tea extracts, depending on the intended target.


Asunto(s)
Catequina/análogos & derivados , Luz , Saccharomyces cerevisiae/efectos de los fármacos , Oxígeno Singlete/metabolismo , Rayos Ultravioleta/efectos adversos , Antiinfecciosos/química , Antiinfecciosos/farmacología , Antiinflamatorios/química , Antiinflamatorios/farmacología , Antioxidantes/química , Antioxidantes/farmacología , Catequina/química , Catequina/farmacología , Luz/efectos adversos , Estrés Oxidativo , Fármacos Fotosensibilizantes/farmacología , Especies Reactivas de Oxígeno/metabolismo , Saccharomyces cerevisiae/metabolismo , Solventes ,
10.
Eur Biophys J ; 39(11): 1483-91, 2010 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-20473754

RESUMEN

This paper presents two new experimental results: the protective effect of green light (GL) on ultraviolet (UV) denaturation of proteins, and the effect of GL on protein macromolecular structures. The protective effect of GL was revealed on two serum albumins, bovine (BSA) and human (HSA), and recorded by electrophoresis, absorption, and circular dichroism spectra. The effect of GL irradiation on protein structure was recorded by using fluorescence spectroscopy and electrophoresis. These new effects were modeled by quantum-chemistry computation using Gaussian 03 W, leading to good fit between theoretical and experimental absorption and circular dichroism spectra. A mechanism for these phenomena is suggested, based on a double-photon absorption process. This nonlinear effect may lead to generation of long-lived Rydberg macromolecular systems, capable of long-range interactions. These newly suggested systems, with macroscopic quantum coherence behaviors, may block the UV denaturation processes.


Asunto(s)
Luz , Albúmina Sérica/química , Absorción , Animales , Bovinos , Dicroismo Circular , Color , Electroforesis , Humanos , Modelos Moleculares , Conformación Proteica/efectos de la radiación , Desnaturalización Proteica/efectos de la radiación , Espectrometría de Fluorescencia , Rayos Ultravioleta
11.
J Adolesc Young Adult Oncol ; 6(3): 499-502, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28498727

RESUMEN

Verrucous carcinoma (VC) is a very rare variant of squamous cell carcinoma of the cervix, difficult to point out in histology because of its benign appearance. We present the case of a 29-year-old woman with a locally advanced cervical VC who underwent radiotherapy followed by radical hysterectomy. After local relapse and despite pelvic exenteration, her condition deteriorated. Treatment of choice in VC is surgery, because of the risk of anaplastic transformation under irradiation, raising the chances of distant spread and converting this rather benign-like type of cancer to an aggressive cancer.


Asunto(s)
Carcinoma de Células Escamosas/secundario , Carcinoma Verrugoso/patología , Recurrencia Local de Neoplasia , Neoplasias Pélvicas/secundario , Neoplasias del Cuello Uterino/patología , Adulto , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/terapia , Carcinoma Verrugoso/diagnóstico , Carcinoma Verrugoso/cirugía , Cuello del Útero/patología , Cuello del Útero/cirugía , Progresión de la Enfermedad , Femenino , Humanos , Histerectomía , Recurrencia Local de Neoplasia/diagnóstico , Recurrencia Local de Neoplasia/terapia , Cuidados Paliativos , Neoplasias Pélvicas/diagnóstico , Neoplasias Pélvicas/terapia , Pronóstico , Neoplasias del Cuello Uterino/diagnóstico , Neoplasias del Cuello Uterino/cirugía
12.
FEBS Lett ; 587(21): 3514-21, 2013 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-24056073

RESUMEN

Optical manipulation of Saccharomyces cerevisiae cells with high density green photons conferred protection against the deleterious effects of UV radiation. Combining chemical screening with UV irradiation of yeast cells, it was noted that the high density green photons relied on the presence of intact unfolded protein response (UPR) pathway to exert their protective effect and that the low Ca(2+) conditions boosted the effect. UPR chemical inducers tunicamycin, dithiotreitol and calcium chelators augmented the green light effect in a synergic action against UV-induced damage. Photo-manipulation of cells was a critical factor since the maximum protection was achieved only when cells were pre-exposed to green light.


Asunto(s)
Calcio/metabolismo , Saccharomyces cerevisiae/metabolismo , Saccharomyces cerevisiae/efectos de la radiación , Rayos Ultravioleta/efectos adversos , Respuesta de Proteína Desplegada/fisiología , Calcineurina/metabolismo , Quelantes/farmacología , Luz , Tunicamicina/farmacología
13.
J Photochem Photobiol B ; 102(1): 39-44, 2011 Jan 10.
Artículo en Inglés | MEDLINE | ID: mdl-20934350

RESUMEN

Free radicals generation is inhibited through green light (GL) irradiation in cellular systems and in chemical reactions. Standard melanocyte cultures were UV-irradiated and the induced cellular reactive oxygen species (ROS) were quantified by the fluorescence technique. The same cell cultures, previously protected by a 24h GL exposure, displayed a significantly lower ROS production. A simple chemical reaction is subsequently chosen, in which the production of free radicals is well defined. Paraffin wax and mineral oil were GL irradiated during thermal degradation and the oxidation products checked by chemiluminescence [CL] and Fourier transform infrared spectra [FT-IR]. The same clear inhibition of the radical oxidation of alkanes is recorded. A quantum chemistry modeling of these results is performed and a mechanism involving a new type of Rydberg macromolecular systems with implications for biology and medicine is suggested.


Asunto(s)
Luz , Melanocitos/metabolismo , Melanocitos/efectos de la radiación , Alcanos/química , Animales , Línea Celular , Color , Radicales Libres/química , Radicales Libres/metabolismo , Cinética , Ratones , Modelos Moleculares , Conformación Molecular , Especies Reactivas de Oxígeno/metabolismo , Espectrometría de Fluorescencia , Espectroscopía Infrarroja por Transformada de Fourier , Temperatura , Rayos Ultravioleta
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