Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 67
Filtrar
1.
Discov Oncol ; 15(1): 429, 2024 Sep 11.
Artículo en Inglés | MEDLINE | ID: mdl-39259370

RESUMEN

BACKGROUND: Evidence suggests that the circadian clock (CIC) is among the important factors for tumorigenesis. We aimed to provide new insights into CIC-mediated molecular subtypes and gene prognostic indexes for prostate cancer (PCa) patients undergoing radical prostatectomy (RP) or radical radiotherapy (RT). METHODS: PCa data from TCGA was analyzed to identify differentially expressed genes (DEGs) with significant fold changes and p-values. A prognostic index called CIC-related gene prognostic index (CICGPI) was developed through clustering methods and survival analysis and validated on multiple data sets. The diagnostic accuracy of CICGPI for resistance to chemotherapy and radiotherapy was confirmed. Additionally, the interaction between tumor immune environment and CICGPI score was explored, along with their correlation with prognosis. RESULTS: TOP2A, APOE, and ALDH2 were used to classify the PCa patients into two subtypes. Cluster 2 had a higher risk of biochemical recurrence (BCR) than cluster 1 for PCa patients undergoing RP or RT. A CIC-related gene prognostic index (CICGPI) was constructed using the above three genes for PCa patents in the TCGA database. The CICGPI score showed good prognostic value in the TCGA database and was externally confirmed by PCa patients in GSE116918, MSKCC2010 and GSE46602. In addition, the CICGPI score had a certain and high diagnostic accuracy for tumor chemoresistance (AUC: 0.781) and radioresistance (AUC: 0.988). For gene set variation analysis, we observed that both beta alanine metabolism and limonene and pinene degradation were upregulated in cluster 1 for PCa patients undergoing RP or RT. For PCa patients undergoing RP, cell cycle, homologous recombination, mismatch repair, and DNA replication were upregulated in cluster 2. A strongly positive relationship between cancer-related fibroblasts and CICGPI score was observed in PCa patients undergoing RP or RT. Moreover, a high density of CAFs was highly closely associated with poorer BCR-free survival of PCa patients. CONCLUSIONS: In this study, we established CIC-related immunological prognostic index and molecular subtypes, which might be useful for the clinical practice.

2.
Discov Oncol ; 15(1): 437, 2024 Sep 12.
Artículo en Inglés | MEDLINE | ID: mdl-39266915

RESUMEN

BACKGROUND: Ribosomal RNA Processing 8 (RRP8) is a gene associated with RNA modification and has been implicated in the development of several types of tumors in recent research. Nevertheless, the biological importance of RRP8 in pan-cancer has not yet been thoroughly and comprehensively investigated. METHODS: In this study, we conducted an analysis of various public databases to investigate the biological functions of RRP8. Our analysis included examining its correlation with pan-cancer prognosis, heterogeneity, stemness, immune checkpoint genes, and immune cell infiltration. Furthermore, we utilized the GDSC and CTRP databases to assess the sensitivity of RRP8 to small molecule drugs. RESULTS: Our findings indicate that RRP8 exhibits differential expression between tumor and normal samples, particularly impacting the prognosis of various cancers such as Adrenocortical carcinoma (ACC) and Kidney Chromophobe (KICH). The expression of RRP8 is intricately linked to tumor heterogeneity and stemness markers. Additionally, RRP8 shows a positive correlation with the presence of tumor-infiltrating cells, with TP53 being the predominant mutated gene in these malignancies. CONCLUSION: Our findings suggest that RRP8 may serve as a potential prognostic marker and therapeutic target in a variety of cancer types.

3.
Exploration (Beijing) ; 4(4): 20230111, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39175890

RESUMEN

Telemedicine has gained tremendous development during the COVID-19 pandemic. With deblocking and opening, telemedicine accelerates the evolvution of the medical "snack community" and undermines the perception of medical students and staff, which promotes the incidence of psychosocial-related disorders. Moreover, the inconsistent telemedicine adaptability between medical workers and patients aggravates the doctor-patient conflict due to the aging population and COVID-19 squeal. Telemedicine is colliding with the national healthcare system, whose synchronization with conventional medical service is crucial to coordinate the relationship among medical payment, patient privacy and qualifications of clinicians. This study puts more emphasis on the double-edged sword role of telemedicine in clinical practice and medical education during the COVID-19 pandemic and beyond. Overall, while telemedicine has demonstrated its utility in health care throughout the COVID pandemic, it is pretty critical to continue evaluating the efficacy and limitations of telemedicine in order to maintain equal access to medical service and high-quality medical education. A new concept as telemedicine-medical "snack community"-PHS ecosystem, where the psychological health education system and partners healthcare system with enough bandwidth, especially 5G technology, could optimize the effect of telemedicine on medical practice and education, is proposed.

4.
Cell Commun Signal ; 22(1): 405, 2024 Aug 19.
Artículo en Inglés | MEDLINE | ID: mdl-39160622

RESUMEN

Drug resistance remains a significant challenge in cancer treatment. Recently, the interactions among various cell types within the tumor microenvironment (TME) have deepened our understanding of the mechanisms behind treatment resistance. Therefore, this review aims to synthesize current research focusing on infiltrating cells and drug resistance suggesting that targeting the TME could be a viable strategy to combat this issue. Numerous factors, including inflammation, metabolism, senescence, hypoxia, and angiogenesis, contribute to drug resistance could be a viable strategy to combat this issue. Overexpression of STAT3 is commonly associated with drug-resistant cancer cells or stromal cells. Current research often generalizes the impact of stromal cells on resistance, lacking specificity and statistical robustness. Thus, future research should take notice of this issue and aim to provide high-quality evidence. Despite the existing limitations, targeting the TME to overcome therapy resistance hold promising and valuable potential.


Asunto(s)
Resistencia a Antineoplásicos , Neoplasias , Microambiente Tumoral , Humanos , Neoplasias/patología , Neoplasias/metabolismo , Neoplasias/inmunología , Neoplasias/tratamiento farmacológico , Animales
5.
Chin J Cancer Res ; 36(3): 341-350, 2024 Jun 30.
Artículo en Inglés | MEDLINE | ID: mdl-38988484

RESUMEN

Aging and circadian rhythms have been connected for decades, but their molecular interaction has remained unknown, especially for cancers. In this situation, we summarized the current research actuality and problems in this field using the bibliometric analysis. Publications in the PubMed and Web of Science databases were retrieved. Overall, there is a rising trend in the publication volume regarding aging and circadian rhythms in the field of cancer. Researchers from USA, Germany, Italy, China and England have greater studies than others. Top three publication institutions are University of California System, UDICE-French Research Universities and University of Texas System. Current research hotspots include oxidative stress, breast cancer, melatonin, cell cycle, calorie restriction, prostate cancer and NF-KB. In conclusion, results generated by bibliometric analysis indicate that many approaches involve in the complex interactions between aging and circadian rhythm in cancer. These established and emerging research directions guide our exploration of the regulatory mechanisms of aging and circadian rhythms in cancer and provide a reference for developing new research avenues.

6.
Pharmacol Res ; 206: 107302, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39004242

RESUMEN

Bladder cancer stands as a prevalent global malignancy, exhibiting notable sex-based variations in both incidence and prognosis. Despite substantial strides in therapeutic approaches, the formidable challenge of drug resistance persists. The genomic landscape of bladder cancer, characterized by intricate clonal heterogeneity, emerges as a pivotal determinant in fostering this resistance. Clonal evolution, encapsulating the dynamic transformations within subpopulations of tumor cells over time, is implicated in the emergence of drug-resistant traits. Within this review, we illuminate contemporary insights into the role of clonal evolution in bladder cancer, elucidating its influence as a driver in tumor initiation, disease progression, and the formidable obstacle of therapy resistance.


Asunto(s)
Evolución Clonal , Resistencia a Antineoplásicos , Genómica , Neoplasias de la Vejiga Urinaria , Neoplasias de la Vejiga Urinaria/genética , Neoplasias de la Vejiga Urinaria/tratamiento farmacológico , Humanos , Resistencia a Antineoplásicos/genética , Evolución Clonal/genética , Animales , Antineoplásicos/uso terapéutico , Antineoplásicos/farmacología
7.
Redox Biol ; 73: 103208, 2024 07.
Artículo en Inglés | MEDLINE | ID: mdl-38851002

RESUMEN

BACKGROUND: Recently, numerous studies have reported the interaction between senescence and oxidative stress in cancer. However, there is a lack of a comprehensive understanding of the precise mechanisms involved. AIM: Therefore, our review aims to summarize the current findings and elucidate by presenting specific mechanisms that encompass functional pathways, target genes, and related aspects. METHODS: Pubmed and Web of Science databases were retrieved to search studies about the interaction between senescence and oxidative stress in cancer. Relevant publications in the reference list of enrolled studies were also checked. RESULTS: In carcinogenesis, oxidative stress-induced cellular senescence acts as a barrier against the transformation of stimulated cells into cancer cells. However, the senescence-associated secretory phenotype (SASP) is positively linked to tumorigenesis. In the cancer progression stage, targeting specific genes or pathways that promote oxidative stress-induced cellular senescence can suppress cancer progression. In terms of treatment, many current clinical therapies combine with novel drugs to overcome resistance and reduce side effects by attenuating oxidative stress-induced senescence. Notably, emerging drugs control cancer development by enhancing oxidative stress-induced senescence. These studies highlight the complacted effects of the interplay between oxidative stress and senescence at different cancer stages and among distinct cell populations. Future research should focus on characterizing the roles of distinct senescent cell types in various tumor stages and identifying the specific components of SASP. CONCLUDSION: We've summarized the mechanisms of senescence and oxidative stress in cancer and provided illustrative figures to guide future research in this area.


Asunto(s)
Senescencia Celular , Neoplasias , Estrés Oxidativo , Humanos , Neoplasias/metabolismo , Neoplasias/patología , Neoplasias/genética , Neoplasias/tratamiento farmacológico , Animales , Fenotipo Secretor Asociado a la Senescencia , Transducción de Señal
8.
Aging Dis ; 2024 Mar 29.
Artículo en Inglés | MEDLINE | ID: mdl-38607733

RESUMEN

Numerous research works have emphasized the critical role that circadian rhythm plays in the tumor microenvironment (TME). The goal of clarifying chrono-pharmacological strategies for improving cancer treatment in clinical settings is a continuous endeavor. Consequently, to enhance the use of time-based pharmaceutical therapies in oncology, combining existing knowledge on circadian rhythms' roles within the TME is essential. This perspective elucidates the functions of circadian rhythms in the TME across various stages of cancer development, progression, and metastasis. Specifically, aging, angiogenesis, and inflammation are implicated in modulating circadian rhythm within the TME. Furthermore, circadian rhythm exerts a profound influence on current cancer treatments and thereby generates chronotheray to manage tumors. From a TME perspective, circadian rhythm offers promising opportunities for cancer prevention and treatment; nevertheless, further study is needed to address unanswered scientific problems.

9.
Phytomedicine ; 127: 155503, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38490077

RESUMEN

BACKGROUND: Natural products have demonstrated significant potential in cancer drug discovery, particularly in renal cancer (RCa), urothelial carcinoma (UC), and testicular cancer (TC). PURPOSE: This review aims to examine the effects of natural products on RCa, UC and TC. STUDY DESIGN: systematic review METHODS: PubMed and Web of Science databases were retrieved to search studies about the effects of natural products and derivatives on these cancers. Relevant publications in the reference list of enrolled studies were also checked. RESULTS: This review highlighted their diverse impacts on key aspects such as cell growth, apoptosis, metastasis, therapy response, and the immune microenvironment. Natural products not only hold promise for novel drug development but also enhance the efficacy of existing chemotherapy and immunotherapy. Importantly, we exert their effects through modulation of critical pathways and target genes, including the PI3K/AKT pathway, NF-κB pathway, STAT pathway and MAPK pathway, among others in RCa, UC, and TC. CONCLUSION: These mechanistic insights provide valuable guidance for researchers, facilitating the selection of promising natural products for cancer management and offering potential avenues for further gene regulation studies in the context of cancer treatment.


Asunto(s)
Productos Biológicos , Carcinoma de Células Transicionales , Neoplasias de Células Germinales y Embrionarias , Neoplasias Testiculares , Neoplasias de la Vejiga Urinaria , Masculino , Humanos , Carcinoma de Células Transicionales/genética , Carcinoma de Células Transicionales/metabolismo , Carcinoma de Células Transicionales/patología , Neoplasias de la Vejiga Urinaria/metabolismo , Fosfatidilinositol 3-Quinasas/metabolismo , Neoplasias Testiculares/tratamiento farmacológico , Productos Biológicos/farmacología , Productos Biológicos/uso terapéutico , Transducción de Señal , Microambiente Tumoral
10.
J Cancer Res Clin Oncol ; 150(3): 123, 2024 Mar 12.
Artículo en Inglés | MEDLINE | ID: mdl-38472489

RESUMEN

BACKGROUND: There is currently a limited number of studies on transglutaminase type 1 (TGM1) in tumors. The objective of this study is to perform a comprehensive analysis across various types of cancer to determine the prognostic significance of TGM1 in tumors and investigate its role in the immune environment. METHOD: Pan-cancer and mutational data were retrieved from the TCGA database and analyzed using R (version 3.6.4) and its associated software package. The expression difference and prognosis of TGM1 were examined, along with its correlation with tumor heterogeneity, stemness, mutation landscape, and RNA modification. Additionally, the relationship between TGM1 expression and tumor immunity was investigated using the TIMER method. RESULTS: TGM1 is expressed differently in various tumors and normal samples and is associated with the overall survival and progression-free time of KIRC, ACC, SKCM, LIHC, and STES. In LICH, we found a negative correlation between TGM1 expression and 6 indicators of tumor stemness. The mutation frequencies of BLCA, LIHC, and KIRC were 1.7%, 0.3%, and 0.3% respectively. In BLCA and BRCA, there was a significant correlation between TGM1 expression and the infiltration of CD4 + T cells, CD8 + T cells, neutrophils, and dendritic cells. CONCLUSION: TGM1 has the potential to serve as both a prognostic marker and a drug target.


Asunto(s)
Neoplasias , Humanos , Linfocitos T CD4-Positivos , Linfocitos T CD8-positivos , Transglutaminasas
11.
Oncol Res ; 32(3): 503-515, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38361753

RESUMEN

The increasing interest in RNA modifications has significantly advanced epigenomic and epitranscriptomic technologies. This study focuses on the immuno-oncological impact of ALYREF in human cancer through a pan-cancer analysis, enhancing understanding of this gene's role in cancer. We observed differential ALYREF expression between tumor and normal samples, correlating strongly with prognosis in various cancers, particularly kidney renal papillary cell carcinoma (KIRP) and liver hepatocellular carcinoma (LIHC). ALYREF showed a negative correlation with most tumor-infiltrating cells in lung squamous cell carcinoma (LUSC) and lymphoid neoplasm diffuse large B-cell lymphoma (DLBC), while positive correlations were noted in LIHC, kidney chromophobe (KICH), mesothelioma (MESO), KIRP, pheochromocytoma and paraganglioma (PARD), and glioma (GBMLGG). Additionally, ALYREF expression was closely associated with tumor heterogeneity, stemness indices, and a high mutation rate in TP53 across these cancers. In conclusion, ALYREF may serve as an oncogenic biomarker in numerous cancers, meriting further research attention.


Asunto(s)
Neoplasias , Proteínas Nucleares , Proteínas de Unión al ARN , Factores de Transcripción , Humanos , 5-Metilcitosina , Neoplasias/metabolismo
12.
Int J Surg ; 110(4): 2323-2337, 2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-38241327

RESUMEN

Spindle and kinetochore-associated complex subunit 3 (SKA3) is a microtubule-binding subcomplex of the outer kinetochore, which plays a vital role in proper chromosomal segregation and cell division. Recently, SKA3 have been demonstrated its oncogenic role of tumorigenesis and development in cancers. In this review, the authors comprehensively deciphered SKA3 in human cancer from various aspects, including bibliometrics, pan-cancer analysis, and narrative summary. The authors also provided the top 10 predicted drugs targeting SKA3. The authors proposed that SKA3 was a potential target and brought new therapeutic opportunities for cancer patients.


Asunto(s)
Proteínas de Ciclo Celular , Neoplasias , Humanos , Neoplasias/tratamiento farmacológico , Neoplasias/cirugía , Terapia Molecular Dirigida/métodos , Medicina de Precisión/métodos , Proteínas Asociadas a Microtúbulos/metabolismo
13.
Aging Dis ; 2023 Nov 26.
Artículo en Inglés | MEDLINE | ID: mdl-38029391

RESUMEN

Prolyl 4-hydroxylase subunit beta (P4HB) can catalyze the formation, breakage and rearrangement of disulfide bonds through two thioredoxin domains, which is important for the maintenance of oxidizing environment in endoplasmic reticulum. Recently, P4HB has been demonstrated its oncogenic role of tumorigenesis and development in cancers. Therefore, we comprehensively deciphered P4HB in human cancer from various aspects, including pan-cancer analysis and narrative summary. We also provided some possible interacted molecules and the top 10 predicted drugs targeting P4HB to contribute to future research. We proposed that P4HB was a potential target and brought new therapeutic opportunities for cancer patients.

14.
Prostate ; 83(7): 722-728, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-36891865

RESUMEN

PURPOSE: The objective of this study is to analyze characteristics of recurrent acute urinary retention (AUR) in patients with benign prostatic hyperplasia (BPH), utilizing a population based data set. Also, we sought to report on how AUR was treated, specifically regarding the need and length of catheterization and types of procedures utilized for mitigation. MATERIALS & METHODS: A retrospective observational cohort study was performed using Optum's deidentified Clinformatics® Data Mart Database. We compared two groups, BPH patients with AUR (n = 180,737) and BPH patients without AUR (n = 1,139,760) from January 1, 2003 to December 31, 2017. Also, we analyzed the factors affecting the development of multiple episodes of AUR through age-adjusted multivariate analysis. RESULTS: In contrast to the 47.7% of patients who had a single AUR episode, 33.5% of AUR patients developed 3 or more subsequent episodes of retention. For age matched patients, the risks of additional episodes of retention increase significantly with older age, Caucasian race, diabetes, neurologic conditions, or low income. Overall, the rate of BPH surgery in AUR patients over the study period decreased and the most common procedure was transurethral resection of the prostate. CONCLUSIONS: Risk factors for multiple episodes of AUR included age (60 and older), Caucasian race, lower income socioeconomic status, diabetes, and neurological disorders. Patients with a high probability of developing recurrent episodes of AUR are recommended to receive preemptive BPH medication before such AUR occurrences. Also, more expeditious surgical treatment should be considered rather than temporary catheterization when AUR occurs.


Asunto(s)
Hiperplasia Prostática , Resección Transuretral de la Próstata , Retención Urinaria , Masculino , Humanos , Estados Unidos/epidemiología , Hiperplasia Prostática/complicaciones , Hiperplasia Prostática/epidemiología , Hiperplasia Prostática/tratamiento farmacológico , Retención Urinaria/epidemiología , Retención Urinaria/etiología , Estudios Retrospectivos , Resección Transuretral de la Próstata/efectos adversos , Factores de Riesgo , Enfermedad Aguda
15.
Curr Issues Mol Biol ; 44(10): 4921-4929, 2022 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-36286049

RESUMEN

Pathways such as VEGF, EGF and mTOR are known to be one of the major mechanisms of tumorigenesis including kidney cancer. To identify potential signaling pathway proteins, we performed differential/correlation analyses of mTOR-associated genes from three public datasets. AKT1 protein, one of the PI3K/AKT/mTOR pathways, turned out to be the potential by showing a consistent discrepancy between ccRCC-associated conditions as well as strong correlation with other mTOR-associated genes across the datasets. Then, we analyzed how AKT1 alteration affects clear cell renal cell carcinoma. The pathology of 58 kidney cancer patients was constructed to analyze the relationship between the expression level of AKT1 through immunohistochemical staining and their clinicopathological data. Gender, age and TNM stage did not show significant results. AKT1 is a known oncogene. However, in this study, high expression of AKT1 showed a slight correlation with lower WHO/ISUP grade, longer recurrence-free and progression-free survival rates.

16.
J Korean Med Sci ; 36(46): e293, 2021 Nov 29.
Artículo en Inglés | MEDLINE | ID: mdl-34845871

RESUMEN

OBJECTIVES: To investigate the prevalence of bladder pain syndrome (BPS)-like symptoms in the general population of South Korea. METHODS: Between April 16, 2016 and April 29, 2016, we conducted an online survey and computer-assisted personal interviews with adults aged 40-79 years in Korea using structured questionnaires. The sample size was 3,000 (95% confidence level standard error ± 1.79%), and the sampling method was simple randomization according to sex, age, and residential area in proportion to the resident registration demographics of the Korean Ministry of Interior and Safety as of March 2016. All participants were surveyed using the Korean version of the Pelvic Pain and Urgency/Frequency (PUF) Patient Symptom Scale and Geriatric Depression Scale (GDS). The primary outcome was the prevalence of BPS-like symptoms, defined as a total PUF score of ≥ 12. RESULTS: Overall, the prevalence of BPS-like symptoms was 16.4% (483 of 3,000 participants). Women (21.4%) had a significantly higher prevalence of BPS-like symptoms than men (10.7%) (P < 0.01). The prevalence by age was significantly higher in the 70s group than in the other age groups (P < 0.01), and increased significantly with the increasing severity of depression on the GDS (P < 0.01). The prevalence of BPS-like symptoms according to the marital status was significantly different, that is, the prevalence among divorced/bereaved individuals was higher than those of married or unmarried individuals (P < 0.01). CONCLUSION: Our large, representative population-based study showed that BPS-like symptoms are widespread among the general population of South Korea. BPS is considered a disease that deserves greater attention as it is far more common than previously thought and can negatively affect many people's quality of life.


Asunto(s)
Cistitis Intersticial/epidemiología , Adulto , Anciano , Cistitis Intersticial/complicaciones , Depresión/complicaciones , Depresión/patología , Femenino , Humanos , Entrevistas como Asunto , Masculino , Persona de Mediana Edad , Prevalencia , República de Corea/epidemiología , Índice de Severidad de la Enfermedad , Factores Sexuales , Encuestas y Cuestionarios
17.
Medicina (Kaunas) ; 57(9)2021 Aug 25.
Artículo en Inglés | MEDLINE | ID: mdl-34577793

RESUMEN

Giant multilocular prostatic cystadenoma is a rare benign tumor of the prostate gland that presents as a large retroperitoneal pelvic mass. The mass is usually located between the urinary bladder and rectum, and results in obstructive voiding symptoms and a change in bowel habits. Complete surgical excision is the treatment of choice. We present a case of rapid recurrent giant multilocular prostatic cystadenoma after laparoscopic excision for primary case. A previously healthy 54-year-old man presented with acute urinary retention. Prostate MRI showed a large cystic mass approximately 13 cm in size, multiple septa and lobulation in the prostate, and no visible solid lesions. Laparoscopic marsupialization of giant multilocular prostatic cystadenoma cysts was performed. One year later, the patient presented with local recurrence. Repeated laparoscopic complete resection was performed without any complications and further recurrence. Giant multilocular prostatic cystadenoma has the risk of recurrence in case of incomplete resection. Surgical treatment should be performed with the goal of complete removal following the same principles as cancer surgery.


Asunto(s)
Cistoadenoma , Laparoscopía , Neoplasias de la Próstata , Cistoadenoma/diagnóstico por imagen , Cistoadenoma/cirugía , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/cirugía , Neoplasias de la Próstata/diagnóstico por imagen , Neoplasias de la Próstata/cirugía
18.
Medicina (Kaunas) ; 57(7)2021 Jul 19.
Artículo en Inglés | MEDLINE | ID: mdl-34357008

RESUMEN

Background and Objectives: Retroperitoneal schwannoma is a very rare case of schwannoma which commonly occurs in the other part of the body. However, it is difficult to distinguish schwannoma from other tumors before pathological examination because they do not show specific characteristics on imaging study such as ultrasound, computed tomography (CT), and magnetic resonance image (MRI). Case summary: A 60-year-old male showed a retroperitoneal cystic tumor which is found incidentally during evaluation of coexisted bladder tumor. Neurogenic tumor was suspicious for the retroperitoneal tumor through pre-operative imaging study. Finally, a schwannoma was diagnosed by immunohistochemical examination after complete surgical excision laparoscopically. Conclusion: As imaging technology is developed, there may be more chances to differentiate schwannoma from other neoplasm. However, still surgical resection and histopathological examination is feasible for diagnosis of schwannoma.


Asunto(s)
Neurilemoma , Neoplasias Retroperitoneales , Neoplasias de la Vejiga Urinaria , Humanos , Ganglios Linfáticos/diagnóstico por imagen , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Neurilemoma/diagnóstico por imagen , Neurilemoma/cirugía , Neoplasias Retroperitoneales/diagnóstico por imagen , Neoplasias Retroperitoneales/cirugía , Tomografía Computarizada por Rayos X , Neoplasias de la Vejiga Urinaria/diagnóstico por imagen , Neoplasias de la Vejiga Urinaria/cirugía
19.
Medicina (Kaunas) ; 57(6)2021 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-34206139

RESUMEN

Background and objectives: The aim of our study was to evaluate the role of diabetes mellitus (DM) as a significant factor affecting spontaneous stone expulsion, as suggested by previous research. Materials and methods: We investigated the influence of DM on the ureter using a murine model. The mouse-model arm of this study used 20 15 -week-old mice, including 10 normal (control) mice and 10 DM mice. We measured the proximal, middle and distal ureteral smooth muscle thickness in each mouse and the differences among ureteral sections were analyzed. Mouse ureteral specimens were also analyzed via western blotting to detect relative protein expression of phosphor-extracellular signal regulated kinases (P-ERK), phosphor-C-Jun N-terminal kinase (P-JNK), vascular endothelial growth factor (VEGF), and protein kinase C (PKC), which are representative factors involved in cell regulation. Results: We observed significant hyperproliferation of ureteral smooth muscle in DM mice compared to normal mice, which may provoke reduced peristalsis. The ureteral smooth muscle of DM mice was significantly thicker than that of normal mice in all ureteral tissues: proximal (p = 0.040), mid (p = 0.010), and distal (p = 0.028). The relative protein expression of P-ERK (p = 0.005) and P-JNK (p = 0.001) was higher in the diabetic group compared to the normal group. Additionally, protein expression of VEGF (p = 0.002) and PKC (p = 0.001) were remarkably up-regulated in DM mice. Conclusions: Hyperproliferation of ureteral smooth muscle was observed in DM mice, but not in normal mice. The pathways mediated by P-ERK, P-JNK, VEGF, and PKC may play an important role in pathological ureteral conditions.


Asunto(s)
Diabetes Mellitus , Quinasas MAP Reguladas por Señal Extracelular , Animales , Proliferación Celular , Ratones , Músculo Liso/metabolismo , Proteína Quinasa C/metabolismo , Transducción de Señal , Factor A de Crecimiento Endotelial Vascular
20.
Medicina (Kaunas) ; 57(6)2021 May 26.
Artículo en Inglés | MEDLINE | ID: mdl-34073208

RESUMEN

Background and objectives: To investigate the risk factors for emphysematous cystitis (EC) compared to those of acute cystitis (AC) to increase clinicians awareness of the possibility for the aggravation of patient status. Materials and methods: We retrospectively reviewed a total of 54 patients who were hospitalized with a diagnosis of EC by abdominal computed tomography (CT) scan from 2006 to 2020. The control group included 92 patients who were hospitalized for the treatment of AC in the same period. We sought to identify the clinical features and predisposing diseases, such as age, sex, diabetes mellitus (DM), hypertension (HTN), cerebrovascular accident (CVA), chronic kidney disease (CKD), neurogenic bladder (NB), history of urinary tract infection (UTI), and emphysematous pyelonephritis (EPN), that were associated with the development of EC. Results: The median (interquartile range (IQR)) age of the patients with EC was older than that of the patients with AC (78.5 (15.3) years (range: 52-100) vs. 70.0 (26.5) years (range: 28-97 years)). Sepsis and mortality occurred only in the EC group (48.1% and 11.1%, respectively). The univariate analysis of predisposing factors revealed that age, DM, HTN, CVA, CKD, and NB were significantly associated with EC. In the multivariate analysis, DM (OR, 6.251; 95% CI, 2.254-17.250; p < 0.001), CKD (OR, 18.439; 95% CI, 3.421-99.404; p = 0.001), NB (OR, 7.374; 95% CI, 1.993-27.285; p = 0.003) were associated with EC. Conclusions: The results of this study revealed that DM, CKD, and NB were significant risk factors for EC. The tendency toward sepsis and high mortality underscore the need for careful observation while treating patients with EC with the risk noted above.


Asunto(s)
Cistitis , Enfisema , Anciano , Anciano de 80 o más Años , Cistitis/complicaciones , Cistitis/epidemiología , Enfisema/complicaciones , Enfisema/diagnóstico por imagen , Enfisema/epidemiología , Análisis Factorial , Humanos , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA