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1.
Pathol Res Pract ; 254: 155160, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38277748

RESUMO

Melatonin (MLT) is an endogenous hormone produced by pineal gland which possess promising anti-tumor effects. Anti-inflammatory and anti-oxidant properties of MLT, along with its immunomodulatory, proapoptotic, and anti-angiogenic properties, are often referred to the main mechanisms of its anti-tumor effects. Recent evidence has suggested that epigenetic alterations are also involved in the anti-tumor properties of MLT. Among these MLT-induced epigenetic alterations is modulation of the expression of several oncogenic and tumor suppressor microRNAs(miRNAs). MiRNAs are among the most promising and potential therapeutic and diagnostic tools in different diseases and enhanced the development of better therapeutic drugs. Suppression of oncomicroRNAs such as microRNA-21, - 20a, and - 27a as well as, up-regulation of microRNA-34 a/c are among the most important effects of MLT on microRNAs homeostasis. Recently, miR-21 has attracted the attention of scientists due to the its wide range of effects on different cancers and diseases. Regulation of this RNA may be a key to the development of better therapeutic targets. The present review will summarize the findings of in vitro and experimental studies of MLT-induced impacts on the expression of microRNAs which are involved in different models and numerous stages of tumor initiation, growth, metastasis, and chemo-resistance.


Assuntos
Melatonina , MicroRNAs , Humanos , Melatonina/metabolismo , Melatonina/uso terapêutico , MicroRNAs/genética , MicroRNAs/uso terapêutico , Neoplasias/tratamento farmacológico , Neoplasias/genética , Neoplasias/patologia , Glândula Pineal/metabolismo , Glândula Pineal/patologia , Animais
2.
Asia Pac J Clin Oncol ; 20(2): 152-167, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36915942

RESUMO

Cancer is one of the most serious human health issues. Drug therapy is the major common way to treat cancer. There is a growing interest in using natural compounds to overcome drug resistance, adverse reactions, and target specificity of certain types of drugs that may affect several targets with fewer side effects and be beneficial against various types of cancer. In this regard, the use of herbal medicines alone or in combination with the main anticancer drugs is commonly available. Berberine (BBR), a nature-driven phytochemical component, is a well-known nutraceutical due to its wide variety of pharmacological activities, including antioxidant, anti-inflammatory, antibacterial, antifungal, antiparasitic, antidiabetic, antihypertensive, and hypolipidemic. In addition, BBR exerts anticancer activities. In present article, we summarized the information available on the therapeutic effects of BBR and its mechanisms on five types of the most prevalent gastrointestinal cancers, including esophageal, gastric, colorectal, hepatocarcinoma, and pancreatic cancers.


Assuntos
Antineoplásicos , Berberina , Neoplasias Gastrointestinais , Humanos , Berberina/uso terapêutico , Berberina/farmacologia , Neoplasias Gastrointestinais/tratamento farmacológico , Antineoplásicos/uso terapêutico
3.
Curr Med Chem ; 31(11): 1315-1331, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37031385

RESUMO

In recent years, substantial advances have been made in cancer treatment modalities. Yet, within the last three decades, neither cancer incidence nor the cancer-induced mortality rate has changed. Available anti-cancer chemotherapeutics possess remarkably restricted effectiveness and often have severe adverse effects. Hence, the identification of novel pharmaceutical agents that do not exhibit these major disadvantages is imperative. Melatonin, an important endogenous molecule synthesized and secreted by the pineal gland, is a promising chemical agent that has been comprehensively assessed over the last decades for its anti-inflammatory and anti-cancer properties. Melatonin is reportedly a significant inhibitor of cancer initiation, progression, and metastasis. The anti-- cancer potential of melatonin is principally mediated by reversing the up-regulated amounts of different transcription factors, growth factors, inflammatory cytokines, protein kinases, and other oncogenic agents. Also, melatonin often has signifcant inhibitory effects on cancer cell proliferation through either promoting apoptosis or inducing cell cycle arrest. The current review provides an insight into melatonin-induced effects against various human cancers with a particular focus on the regulation of Wnt/ß-catenin signaling pathway.


Assuntos
Melatonina , Neoplasias , Humanos , Melatonina/farmacologia , Melatonina/uso terapêutico , Via de Sinalização Wnt , Neoplasias/patologia , Proliferação de Células , Peptídeos e Proteínas de Sinalização Intercelular , Apoptose , beta Catenina/metabolismo , beta Catenina/farmacologia , Linhagem Celular Tumoral
4.
Curr Med Chem ; 2023 Oct 19.
Artigo em Inglês | MEDLINE | ID: mdl-37855340

RESUMO

Cancer can take years to develop, both at its beginning and during its development. All typical epithelial cancers have a long latency period, sometimes 20 years or more, and if they are clinically detected, distinct genes may include infinite mutations. Long non-coding RNAs (LncRNAs) are a subset of RNAs that regulate many biological processes, including RNA processing, epigenetic control, and signal transduction. Current studies show that lncRNAs, which are dysregulated in cancer, play a significant function in the growth and spread of the illness. LncRNAs have been connected to the overexpression of specific proteins that function in tumors' spread and growth. Moreover, through translational inhibition, microRNAs (miRNAs) regulates gene expression sequence specifically. Apart from that, non-coding RNAs known as miRNAs, with a length of around 22 nucleotides, controls gene expressions in a sequence-specific way either by preventing translation or degrading messenger RNA (mRNA). Quercetin appears to have a significant role in altering miRNA and lncRNA expression, which is linked to variations in the production of oncogenes, tumor suppressors, and proteins produced from cancer. Quercetin may change the earliest epigenetic modifications related to cancer prevention in addition to its usual antioxidant or anti-inflammatory effects. It would be beneficial to have more in-depth information on how Quercetin modulates miRNAs and lncRNAs to use it as a cancer therapeutic strategy. Here, we go through what is known about Quercetin's potential to modulate miRNAs and lncRNAs in various malignancies.

5.
J Pain Palliat Care Pharmacother ; 37(4): 278-285, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37712672

RESUMO

This study aims to evaluate the epidemiology of potential drug interactions in terminally-ill cancer patients receiving exclusively supportive care. In this cross-sectional study, during a 6-month follow-up, we considered the medical record of terminally-ill cancer patients referred to palliative care at the cancer center in Isfahan, Iran. Potential drug-drug interactions (DDIs) were assessed by Lexi-Interact ver.1.1 online software. During the study period, 133 terminally-ill cancer patients were recruited. We detected 1678 DDIs with moderate or major severity levels. Among them, 330, 219, 32, 1075, and 51 interactions were categorized in B, C, D, and X drug interactions categories, respectively. One hundred and twenty-two patients (91.73%) encountered at least one potential drug-drug interaction during the end of life care. Mechanistically, most drug-drug interactions (64.5%) were pharmacodynamics. The most frequent pharmacological class of drugs responsible for DDIs were quetiapine (91 cases), oxycodone (87 cases), and sertraline (55 cases). Interaction between oxycodone and sertraline was found to be in the top 10 detected DDIs (13.7%). Our results showed that potentially moderate or major drug-drug interactions often occur among terminally-ill cancer patients and the clinical significance of DDIs should be considered meticulously in the palliative care cancer setting.


Assuntos
Neoplasias , Oxicodona , Humanos , Estudos Transversais , Sertralina , Interações Medicamentosas , Neoplasias/tratamento farmacológico , Oriente Médio
6.
Environ Res ; 237(Pt 2): 116980, 2023 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-37648188

RESUMO

Melanoma, an aggressive malignant tumor originating from melanocytes in humans, is on the rise globally, with limited non-surgical treatment options available. Recent advances in understanding the molecular and cellular mechanisms underlying immune escape, tumorigenesis, drug resistance, and cancer metastasis have paved the way for innovative therapeutic strategies. Combination therapy targeting multiple pathways simultaneously has been shown to be promising in treating melanoma, eliciting favorable responses in most melanoma patients. CAR T-cells, engineered to overcome the limitations of human leukocyte antigen (HLA)-dependent tumor cell detection associated with T-cell receptors, offer an alternative approach. By genetically modifying apheresis-collected allogeneic or autologous T-cells to express chimeric antigen receptors, CAR T-cells can appreciate antigens on cell surfaces independently of major histocompatibility complex (MHC), providing a significant cancer cell detection advantage. However, identifying the most effective target antigen is the initial step, as it helps mitigate the risk of toxicity due to "on-target, off-tumor" and establishes a targeted therapeutic strategy. Furthermore, evaluating signaling pathways and critical molecules involved in melanoma pathogenesis remains insufficient. This study emphasizes the novel approaches of CAR T-cell immunoediting and presents new insights into the molecular signaling pathways associated with melanoma.

7.
Blood Res ; 58(2): 91-98, 2023 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-37160381

RESUMO

Background: With the emergence of the coronavirus disease 2019 (COVID-19) and inability of healthcare systems to control the disease, various therapeutic theories with controversial responses have been proposed. Plasmapheresis was administered as a medication. However, the knowledge of its efficacy and indications is inadequate. This study evaluated the use of plasmapheresis in critically ill patients with cancer. Methods: This randomized clinical trial was conducted on 86 patients with malignancies, including a control group (N=41) and an intervention group (N=45) with severe COVID-19 during 2020-21. Both groups were treated with routine medications for COVID-19 management according to national guidelines, and plasmapheresis was applied to the intervention group. C-reactive protein (CRP), D-dimer, ferritin, lactate dehydrogenase, hemoglobin, and white blood cell, polymorphonuclear, lymphocyte, and platelet levels were measured at admission and at the end of plasmapheresis. Other variables included neutrophil recovery, intensive care unit admission, intubation requirements, length of hospital stay, and hospitalization outcomes. Results: CRP(P<0.001), D-dimer (P<0.001), ferritin (P=0.039), and hemoglobin (P=0.006) levels were significantly different between the groups after the intervention. Neutrophil recovery was remarkably higher in the case than in the control group (P<0.001). However, plasmapheresis did not affect the length of hospital stay (P=0.076), which could have significantly increased survival rates (P<0.001). Conclusion: Based on the study findings, plasmapheresis led to a significant improvement in laboratory markers and survival rate in patients with severe COVID-19. These findings reinforce the value of plasmapheresis in cancer patients as a critical population suffering from neutropenia and insufficient immune responses.

8.
Pathol Res Pract ; 246: 154507, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37196467

RESUMO

LncRNAs, or long non-coding RNAs, are a subset of RNAs that play a regulatory role in a wide range of biological functions, including RNA processing, epigenetic regulation, and signal transduction. Recent research indicates that lncRNAs play a key role in the development and spread of cancer by being dysregulated in the disease. In addition, lncRNAs have been linked to the overexpression of certain proteins that are involved in tumor development and progression. Resveratrol has anti-inflammatory and anti-cancer properties that it exerts through regulating different lncRNAs. By the regulation of tumor-supportive and tumor-suppressive lncRNAs, resveratrol acts as an anti-cancer agent. By downregulating the tumor-supportive lncRNAs DANCR, MALAT1, CCAT1, CRNDE, HOTAIR, PCAT1, PVT1, SNHG16, AK001796, DIO3OS, GAS5 and H19, and upregulating MEG3, PTTG3P, BISPR, PCAT29, GAS5, LOC146880, HOTAIR, PCA3, NBR2, this herbal remedy causes apoptosis and cytotoxicity. For the purpose of using polyphenols in cancer therapy, it would be helpful to have more in-depth knowledge about lncRNA modulation via resveratrol. Here, we discuss the current knowledge and future promise of resveratrol as modulators of lncRNAs in different cancers.


Assuntos
Neoplasias , RNA Longo não Codificante , Humanos , RNA Longo não Codificante/genética , Resveratrol/uso terapêutico , Epigênese Genética , Neoplasias/genética
9.
Front Oncol ; 13: 1149187, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37124518

RESUMO

Acute myeloid leukemia (AML) is an aggressive hematological malignancy and affected patients have poor overall survival (OS) rates. Circular RNAs (circRNAs) are a novel class of non-coding RNAs (ncRNAs) with a unique loop structure. In recent years, with the development of high-throughput RNA sequencing, many circRNAs have been identified exhibiting either up-regulation or down-regulation in AML patients compared with healthy controls. Recent studies have reported that circRNAs regulate leukemia cell proliferation, stemness, and apoptosis, both positively and negatively. Additionally, circRNAs could be promising biomarkers and therapeutic targets in AML. In this study, we present a comprehensive review of the regulatory roles and potentials of a number of dysregulated circRNAs in AML.

10.
Caspian J Intern Med ; 14(1): 1-9, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36741500

RESUMO

Background: Chronic lymphocytic leukemia (CLL) can transform into fast growing lymphoma for diffuse large B-cell lymphoma (DLBCL) called Richter's syndrome (RS), which is commonly related to an existence of large B-cells with equal or larger size than macrophage nuclei or more than twice those of normal lymphocyte. We conducted a systematic review of the existing literature to assess the clinical efficacy of auto-HCT for patients with RS. Methods: We searched 4 main databases; EMBASE, Google Scholar, Scopus, PubMed and Web of Science and was done on December 26, 2021. All analyses in this study were performed by Stata software and this review was reported in accordance with PRISMA 2020. Results: Data was extracted from 4 articles; the total number of patients was reported to be 110. Based on the meta-analysis findings, pooled overall survival rate was 56.36% (95%CI= (46.98-65.31). In figure 2, the forest plot of combined results is shown. Conclusion: Despite the use of common treatment regimens such as chemo immunotherapy and the availability of novel therapies including B-cell receptor inhibitors and rituximab-cyclophosphamide-hydroxydaunorubicin-Oncovin-prednisone (CHOP-R) regimen, the status of disease progression and recovery in RS cases is still not strong enough.

11.
Pathol Res Pract ; 243: 154368, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36774757

RESUMO

Endometriosis, the very serious disease in women creates a huge financial burden worldwide, which is comparable to diabetes mellitus. In addition to the typical pelvic pain, endometriosis is related to low life quality and decreased work efficiency; clinical consequences include mood complaints, metabolic impairments, inflammation, immunologic problems, and elevated malignancy risks. Several risk factors are correlated with endometriosis including elevated oxidative and nitrosative stress, long-lasting inflammation, raised immune tolerance, as well as autoimmunity. Melatonin is a natural molecule present throughout both the plant and animal kingdoms. It has numerous functions as an antioxidant and anti-inflammatory agent. Due to the anti-proliferative, antioxidant, anti-inflammatory, and anti-invasive features of melatonin, it performances as a beneficial agent to limit endometriosis; this involves several pathways including antiestrogenic, antioxidant, anti-inflammatory, and anti-apoptosis effects, as well as reducing the growth of E2-induced endometriotic tissue. Moreover, melatonin can favor sleep quality and decrease the unwanted signs in the patients. However, most of the data on melatonin accured from experimental works and additional clinical trials are needed. This review summarizes what is currently known regarding the influence of melatonin on endometriosis. AVAILABILITY OF DATA AND MATERIAL: Not applicable.


Assuntos
Endometriose , Melatonina , Humanos , Animais , Feminino , Melatonina/farmacologia , Melatonina/uso terapêutico , Antioxidantes/farmacologia , Antioxidantes/uso terapêutico , Endometriose/patologia , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/uso terapêutico , Inflamação/tratamento farmacológico
12.
Braz J Microbiol ; 54(1): 143-149, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36378415

RESUMO

Oral colonization and infection by Candida species are common in cancer patients receiving chemoradiotherapy, which has significantly increased in recent years. This study aimed to evaluate the frequency, distribution, and antifungal susceptibility profiles of Candida species isolates in patients with hematological malignancy and solid tumors. This study was conducted on a total of 45 cancer patients undergoing treatment with concurrent chemoradiotherapy within 2019-2020. The identification of Candida species was accomplished based on conventional examination and molecular assays. The minimum inhibitory concentrations were determined based on the guidelines of Clinical and Laboratory Standards Institute. The highest prevalence rates of oral candidiasis were observed in patients with chronic lymphoid leukemia (24.4%) and lymphoma (20%). The majority of the patients had oral candidiasis caused by non-albicans Candida species (64.4%). The results of the multiplex PCR for the identification of Candida glabrata, Candida nivariensis, Candida bracarensis, and species-specific Candida parapsilosis complex showed that all isolate amplification products at 397 bp and 171 bp were related to C. glabrata and C. parapsilosis, respectively. There was a significant difference in the Candida species distribution between the hematological malignancies and solid tumors patients. The results of MIC showed that clotrimazole, voriconazole, and caspofungin were the most effective antifungal drugs against oral non-Candida albicans isolates. An understanding of the epidemiology of oral candidiasis among hematological malignancies and solid tumors patients is currently imperative to guide optimal empirical treatment strategies for affected patients.


Assuntos
Candidíase Bucal , Neoplasias Hematológicas , Neoplasias , Humanos , Candidíase Bucal/microbiologia , Antifúngicos/farmacologia , Candida , Candida glabrata , Candida parapsilosis , Neoplasias Hematológicas/tratamento farmacológico , Testes de Sensibilidade Microbiana , Farmacorresistência Fúngica
13.
J Res Pharm Pract ; 12(2): 33-43, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38463189

RESUMO

Objective: This study aimed to comprehensively assess the challenges faced by a newly established clean room in the oncology center of Omid Hospital, Isfahan, Iran, one of the first of its kind in the country. The research also sought to identify the underlying causes of these challenges and propose potential solutions to address them. Methods: A 6-month cross-sectional study was conducted from December 2021 to May 2022. International guidelines such as British Columbia Cancer Agencies' guideline of hazardous drugs, the National Institute for Occupational Safety and Health guideline for working with hazardous drugs, and United States pharmacopeia related to cleanroom performance were studied, translated, and summarized into a checklist. The staff performance in Omid Hospital's clean room was compared to the data collection form, and all medication errors were documented and analyzed. The study also explained the underlying causes of these challenges and proposed potential solutions. Findings: Among 1005 chemotherapy regimens, 836 errors were detected, stemming from issues such as engineering and construction challenges, lack of human resources and essential equipment, and budgetary constraints. Conclusion: Despite the involvement of a trained oncology clinical pharmacist, Omid Hospital's cleanroom faces significant challenges within the medical and hospital system, leading to non-standard challenges. The study recommends multidisciplinary approaches in the hospital to mitigate these challenges and improve cleanroom performance.

14.
J Res Med Sci ; 27: 73, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36353349

RESUMO

Background: Cancer patients, as a highly vulnerable population, are receiving a great deal of attention in the current crisis of coronavirus 2019 (COVID-19). To date, shreds of evidence are not sufficient to the description of COVID-19 outcomes in patients with cancer. This study was performed to evaluate the demographic and clinical characteristics and subsequent outcomes of COVID-19 in cancer patients. Materials and Methods: A hospital-based study was conducted involving 66 cancer patients with a confirmed diagnosis of COVID-19 from January 15, 2020, to December 21, 2020, in Isfahan, Iran. The clinical information was collected by interview and medical records. The statistical analyses were performed to describe categorical variables as well as mean, standard deviation, median, and the interquartile range for quantitative variables. Results: In our study, 66 cancer patients with confirmed COVID-19 (age: 17-97 years; 50% female) were included. Leukemia and bone marrow cancer with a frequency of 25.7% were the most common types of cancer among them. Cancer patients mostly complained of fever, cough and fatigue, and shortness of breath. Among 76.9% of patients discharged from the hospital with relative recovery, 23% died; the most common cause of death was acute respiratory distress syndrome. Age, gender, and type of cancer did not affect cancer mortality. COVID-19 had no potential effect to increase the risk of side effects of anticancer therapies. Conclusion: The results of our studies revealed that cancer is an important risk factor for the higher rate of mortality in patients with COVID-19. These findings could help physicians for the management, treatment, and supportive care of COVID-19 cancer patients.

15.
Crit Rev Food Sci Nutr ; : 1-14, 2022 Jul 18.
Artigo em Inglês | MEDLINE | ID: mdl-35848113

RESUMO

Natural products such as curcumin, quercetin, and resveratrol have been shown to have antitumor effectsand several studies have examined their role in treating cancer, either alone or in combination with other chemotherapeutic drugs. These compounds are capable of affecting different cancer-related mechanisms, such as proliferation, inflammation, invasion, and metastasis. Along with all of the benefits of these agents, affecting epigenetic processes is one of the most important aspects of their impact. Epigenetic modifications can be categorized into three main processes that include DNA methylation, histone modification, and regulation of small non-coding RNAs. Therefore, targeting DNA methylation can be used as a cancer treatment strategy by identifying or developing methylation modulators. Herein, we take a look into the studies investigating the role of natural products (e.g. curcumin, resveratrol, epigallocatechin gallate (EGCG), and quercetin) in alternating the DNA methylation status of various cancer cells. We discuss how these compounds reduce the expression of enzymes mediating the methylation of tumor suppressor genes and thereby, increasing the expression of tumor suppressors while reactivating antitumor signaling pathways.

16.
Biochimie ; 202: 15-25, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35636690

RESUMO

Currently, cancer is ranked among the top ten causes of death worldwide. Despite the advances made in the field of cancer treatment, 5-year survival rates of various types of cancer are still low due to the recurrence of the disease and/or metastasis. Dissemination of cancer cells, infiltration into the blood vessels, migration to the targeted organs, extravasation, and colonization are the main steps of metastasis. Various factors and signaling pathways are involved in each of these steps. Melatonin (MLT) is a hormone derived from tryptophan and secreted by the pineal gland. This hormone has shown a variety of anti-tumor effects, including anti-oxidative activities, inhibiting the proliferation of tumor cells, inducing apoptosis, and suppressing metastasis. Due to these extensive effects, several studies have been conducted on the applications of MLT in treating different types of cancer. Herein, we review the mechanisms of MLT's effects on the metastasis inhibition of the most lethal types of cancer including the cancer of lung, breast, stomach, kidney, colon, liver, bladder, and pancreas. We discuss how MLT targets different molecules and signaling pathways in each step of the metastasis, such as angiogenesis, remodeling of the extracellular matrix, migration, and epithelial-to-mesenchymal transition.


Assuntos
Melatonina , Neoplasias , Glândula Pineal , Humanos , Melatonina/farmacologia , Melatonina/uso terapêutico , Melatonina/metabolismo , Glândula Pineal/metabolismo , Neoplasias/tratamento farmacológico , Neoplasias/metabolismo , Transição Epitelial-Mesenquimal , Transdução de Sinais
17.
Res Pharm Sci ; 17(2): 176-188, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35280833

RESUMO

Background and purpose: Cisplatin-induced nephrotoxicity (CisIN) remains the most dose-limiting adverse effect of its clinical use. The protective effects of melatonin on CisIN have been addressed in several non- clinical and animal studies. This study aimed at investigating the potential effects of melatonin on the prevention of CisIN in human. Experimental approach: Our study was a randomized controlled clinical trial, performed on 66 eligible patients in two groups of melatonin or control (no intervention). Melatonin was administrated daily at a dose of 20 mg for 5 days to the patients receiving cisplatin-containing regimens along with the standard protocol of CisIN prevention. Patient demographic information, blood and urinary indices of nitrogen, creatinine, and electrolytes such as sodium, potassium, magnesium as well as neutrophil gelatinase-associated lipocalin were measured in both groups at the baseline, 24 h and five days after melatonin administration. Findings/Results: Cisplatin administration resulted in significant magnesium and potassium loss in patients with cancer. In comparison with the control group, the prevalence of acute renal injury and the rate of urinary magnesium and potassium loss improved with melatonin administration; however, the results were not statistically significant. Tolerable side effects such as daytime drowsiness, nausea, and vomiting were reported in the melatonin group. Conclusion and implications: Although pretreatment with melatonin led to amelioration in urinary electrolyte loss due to CisIN, it failed to show a positive result on acute renal injury prevention. Future well-designed studies with a longer duration of follow-up, larger sample sizes, and higher doses of melatonin are warranted.

18.
Iran J Pharm Res ; 21(1): e128817, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36942060

RESUMO

Background: Androgen deprivation therapy (ADT) has been considered as a mainstay of treatment for advanced prostate cancer. Considering ADT for cancer patients is accompanied with many side effects, such as behavioral and neurologic side effects that adversely affect the quality of life. Objectives: This study aimed to evaluate the effects of melatonin administration on sleep problems and mood changes induced by ADT in prostate cancer patients. Methods: The randomized, double-blind, placebo-controlled trial was designed in the oncology-hematology outpatient clinic of Omid Hospital, Isfahan, Iran. After screening by the hospital anxiety and depression scale (HADS), patients were divided into either an intervention group receiving 6 mg melatonin daily for four weeks or an identical placebo. After that, patients were evaluated by the Pittsburgh sleep quality index (PSQI), the Hamilton Anxiety Rating Scale (HAM-A), and Beck Depression Inventory (BDI) questionnaires at baseline and after 4-week follow-ups. Results: Forty-three patients, including 21 and 22 patients in melatonin and placebo groups, respectively completed follow-ups period. Melatonin administration significantly improved PSQI scores in four domains of sleep quality, sleep latency, sleep efficacy, and daytime dysfunction. After 4-week melatonin supplementation, the severity of depression and anxiety assessed by BDI and HAM-A questionnaires, respectively, decreased non-statistically significant in both melatonin and placebo groups. Conclusions: In our study, melatonin supplementation ameliorated ADT-induced sleep problems in patients with prostate cancers; however, for more conclusive results, further future large and well-designed clinical studies is warranted.

19.
Nutr Cancer ; 74(5): 1527-1537, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34338098

RESUMO

Gliomas are considered as one of the important brain tumors in adults due to their impact on life quality and cognitive functions. Current methods that are used for treating glioma are not satisfying enough. Understanding cellular and molecular events underlying its pathogenesis and progression may lead to the discovery of novel therapeutic approaches. Sterols are a subtype of steroids and are essential for the physiologic functions of eukaryotic cells. Sterols can be produced by protozoans and microheterotrophs. Moreover, they are found in some natural sources, such as plants, animals, fungi, microalgae, and yeasts. Besides the roles of sterols in physiologic processes, studies have shown that they are involved in pathologic processes, including tumorigenesis and tumor progression. As investigations have revealed, sterol-related signaling pathways are involved in glioma and targeting them may result in new therapeutic options for patients. Thus, we summarized some of the sterol-related signaling pathways in glioma and how they can be associated with other signaling pathways, including EGFR/PI3K/Akt/mTOR, P53, and retinoblastoma protein.


Assuntos
Neoplasias Encefálicas , Glioma , Transdução de Sinais , Esteróis , Neoplasias Encefálicas/tratamento farmacológico , Linhagem Celular Tumoral , Glioma/patologia , Humanos , Esteróis/metabolismo
20.
Curr Probl Cardiol ; 47(10): 100958, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34358588

RESUMO

Breast cancer (BC) and colorectal cancer (CRC) are among the most common cancers in Iran. We aimed to develop a risk assessment model to predict the development of cardiovascular events in these patients by performing a 5 year prospective cohort study on a newly diagnosed patients with BC or CRC before they receive any treatment. A multi-center prospective cohort study of 2700 newly diagnosed BC and CRC patients has been started in Iran since 2019 and will be continued until 2024. Demographics, socioeconomic status, life style behaviors, psychological characteristics and type of cancer treatments will be collected by standard questionnaires and blood pressure, obesity indices will be measured. Blood sampling, ECG, and echocardiography will be done in all patients at base line, 6 and 12 months, then at annual basis for five years. Incidence of heart failure, acute coronary syndrome, stroke and CVD related death are the primary outcome of this study. In this preliminary analysis, 70 patients with BC and 30 patients with CRC were enrolled in this study from April 2019 to November 2019. Mean age of BC and CRC patients was 48 ± 10.5 and 61 ± 13.2 respectively. 98.6% of patients in BC group and 60% of CRC groups were female. This study will be a platform for other cancers to develop CVD risk assessment charts that can cover other cancers. Patients who lie in the high risk category according to the newly developed risk assessment chart, should receive special management and preventive interventions.


Assuntos
Neoplasias da Mama , Doenças Cardiovasculares , Neoplasias Colorretais , Estudos de Coortes , Feminino , Humanos , Masculino , Estudos Prospectivos , Medição de Risco
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