Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 24
Filtrar
1.
Angew Chem Int Ed Engl ; 63(1): e202313336, 2024 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-37983653

RESUMO

The precise control of the regioselectivity in the transition metal-catalyzed migratory hydrofunctionalization of alkenes remains a big challenge. With a transient ketimine directing group, the nickel-catalyzed migratory ß-selective hydroarylation and hydroalkenylation of alkenyl ketones has been realized with aryl boronic acids using alkyl halide as the mild hydride source for the first time. The key to this success is the use of a diphosphine ligand, which is capable of the generation of a Ni(II)-H species in the presence of alkyl bromide, and enabling the efficient migratory insertion of alkene into Ni(II)-H species and the sequent rapid chain walking process. The present approach diminishes organosilanes reductant, tolerates a wide array of complex functionalities with excellent regioselective control. Moreover, this catalytic system could also be applied to the migratory hydroarylation of alkenyl azahetereoarenes, thus providing a general approach for the preparation of 1,2-aryl heteroaryl motifs with wide potential applications in pharmaceutical discovery.

2.
J Int Med Res ; 51(10): 3000605231206958, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37899573

RESUMO

Duodenal stenosis caused by upper tract urothelial carcinoma (UTUC) is rare. A 70-year-old male patient was diagnosed with a UTUC invading the duodenum 3 months before admission. Owing to duodenal stenosis, enteral nutrition was necessary. We performed pancreaticoduodenectomy with right nephroureterectomy and right hemicolectomy using a multi-disciplinary approach. Postoperative pathology revealed a UTUC invading the right kidney, duodenum, pancreas, and transverse colon. The patient underwent chemotherapy and immunotherapy after surgery, which improved his quality of life.


Assuntos
Carcinoma de Células de Transição , Neoplasias da Bexiga Urinária , Masculino , Humanos , Idoso , Carcinoma de Células de Transição/patologia , Neoplasias da Bexiga Urinária/cirurgia , Qualidade de Vida , Nefroureterectomia
3.
Am J Mens Health ; 17(3): 15579883231183770, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37381630

RESUMO

To evaluate the clinical efficacy of pelvic floor low-frequency electrical stimulation combined with anus lifting training in the treatment of urinary incontinence after radical prostatectomy in a Chinese cohort. Fifty-five patients with urinary incontinence after radical prostatectomy were randomly divided into treatment group and control group. Patients in control group received only anus lifting training therapy, while treatment group combined with pelvic floor low-frequency electrical stimulation. The urinary control including urinary incontinence questionnaire (ICI-Q-SF), urinary incontinence quality of life (I-QOL), visual analogue scale (VAS), and pelvic floor muscle strength assessment (Glazer) of the two groups of patients before treatment and every week was recorded for statistical analysis. There was a statistically significant difference between treatment group and control group in the urinary control curve. The scores of ICI-Q-SF, I-QOL, VAS, and Glazer in the treatment group after 2 weeks were statistically different from those before treatment, and effects were accumulating with the extension of treatment time. Compared with the control group, the scores of treatment group in the 2 to 10 weeks improved more significantly. Especially, in the sixth week, total effective rate of treatment group was significantly better than that of control group (74.07% [20/27], 35.71% [10/28], p < .05). The difference between two groups gradually narrowed after 10 weeks and no significant difference after 10 weeks of treatment between two groups. Pelvic floor low-frequency electrical stimulation combined with anus lifting training after radical prostatectomy can significantly shorten the recovery time of urinary incontinence in patients after radical prostatectomy.


Assuntos
Qualidade de Vida , Incontinência Urinária , Masculino , Humanos , Canal Anal , População do Leste Asiático , Remoção , Prostatectomia/efeitos adversos , Incontinência Urinária/etiologia , Incontinência Urinária/terapia , Estimulação Elétrica
4.
Perfusion ; 38(2): 228-235, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-34617860

RESUMO

PURPOSE: In this article, we aimed to elaborate on perioperative and complication management in treatment of pheochromocytoma crisis with extracorporeal membrane oxygenation (ECMO). MATERIAL AND METHODS: We report a case of relatively rare grant paraganglioma-induced pheochromocytoma crisis leading to severe circulatory failure, treated with venoarterial extracorporeal membrane oxygenation (V-A ECMO) as a bridge to curative adrenalectomy. Weaning of ECMO was followed by successful surgical removal of the tumor, and patient survival. However, distal ischemia of the cannulated leg occurred during ECMO operation, which eventually led to amputation. In addition, the patient developed new cerebral infarction and left hemiplegia, half a month after paraganglioma resection. CONCLUSIONS: We believe that patients with pheochromocytoma crisis, who cannot maintain blood circulation, are eligible for V-A ECMO treatment. Moreover, care should be taken to prevent thrombosis and individualized and precise blood pressure management targets. Early detection and treatment of thrombosis is imperative to long-term prognosis of patients with ECMO.


Assuntos
Neoplasias das Glândulas Suprarrenais , Oxigenação por Membrana Extracorpórea , Paraganglioma , Feocromocitoma , Trombose , Humanos , Feocromocitoma/complicações , Feocromocitoma/cirurgia , Neoplasias das Glândulas Suprarrenais/complicações , Neoplasias das Glândulas Suprarrenais/cirurgia , Paraganglioma/complicações , Estudos Retrospectivos
5.
Bioengineered ; 13(3): 5373-5385, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35184651

RESUMO

Androgen deprivation therapy is currently the main therapeutic strategy for the treatment of advanced metastatic prostate cancer (ADPC). However, the tumor type in ADPC patients transforms into castration-resistant prostate cancer (CRPC) after 18-24 months of treatments, the underlying mechanism of which remains unclear. The present study aimed to investigate the potential pathological mechanism of the conversion from ADPC to CRPC by exploring the function of lung cancer metastasis-related protein 1 (LCMR1). We found that LCMR1 and glucocorticoid receptor α (GRα) were highly expressed in CRPC tissues, compared to ADPC tissues, and were accompanied by high concentrations of inflammatory factors. Knocking down LCMR1 or GRα in CRPC cells led to inhibition of metastasis and proliferation and induction of apoptosis. The expression of HSP90 and IL-6 was upregulated and that of androgen receptor was downregulated by knocking down LCMR1 or GRα in CRPC cells. Luciferase assay results indicated that the transcription of GRα was promoted by the LCMR1 promoter. The growth rate of CRPC cells in vivo was greatly decreased by knocking down LCMR1 or GRα. Lastly, CRPC cell sensitivity to enzalutamide treatment was found significantly enhanced by the knockdown of LCMR1. Taken together, LCMR1 might regulate the conversion of ADPC to CRPC by activating the GRα signaling pathway.


Assuntos
Neoplasias Pulmonares , Complexo Mediador/metabolismo , Neoplasias de Próstata Resistentes à Castração , Antagonistas de Androgênios/uso terapêutico , Linhagem Celular Tumoral , Proliferação de Células/genética , Humanos , Neoplasias Pulmonares/metabolismo , Masculino , Neoplasias de Próstata Resistentes à Castração/tratamento farmacológico , Neoplasias de Próstata Resistentes à Castração/genética , Neoplasias de Próstata Resistentes à Castração/metabolismo , Receptores de Glucocorticoides , Transdução de Sinais
6.
Front Mol Biosci ; 8: 585000, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34926570

RESUMO

Background: Kidney renal clear cell carcinoma (KIRC) has become one of the most prevalent malignancies worldwide and remains a crucial cause of cancer-related morbidity and mortality. Aberrant activation of the JAK/STAT pathway acts as an important role in KIRC. The suppressor of cytokine signaling (SOCS) family members are the key negative regulators of the JAK/STAT pathway. SOCS family members have been verified to act as significant roles in regulating cellular responses to many cytokines and growth factors. However, whether the expression levels of SOCS affect the prognosis of patients with KIRC is still elusive. Methods: We first evaluated the expression of SOCS family genes in KIRC and determined the correlation between SOCS expression and different clinicopathological features. Then, we analyzed the genetic alterations, potential functions, transcription factor targets, and immune infiltration of SOCS family members based on the information available on public databases. Finally, we assessed the prognostic value of differentially expressed SOCS family members. Results: The expression levels of SOCS2, SOCS4, SOCS6, SOCS7, and CISH were downregulated in KIRC, and all SOCS genes were associated with clinicopathological features of patients with KIRC. SOCS family members have been predominantly related to protein binding, signaling adaptor activity, and JAK/STAT cascade. We found that STAT3, STAT6, and IRF1 are the key transcription factors that may be participated in the regulation of SOCS. We also found an association between the expression levels of SOCS and the immune infiltrates of KIRC. Finally, we have illuminated that SOCS1 and SOCS3 are risky genes, whereas SOCS2, SOCS4, SOCS6, SOCS7, and CISH are some of the protective genes for patients with KIRC; based on these, we have created a KIRC prognostic index for predicting the prognosis of patients of KIRC. Conclusion: Our study may contribute to further understanding the functions of SOCS genes in KIRC, which may help clinicians in selecting the appropriate drugs and predicting the outcomes for patients with KIRC.

7.
Cancer Invest ; 39(10): 908-913, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34569904

RESUMO

The present study reports the clinical data of a patient with pheochromocytoma who developed acute non-cardiac pulmonary edema. The patient has already been followed for 2 years after the initial surgery. Based on the case of our patient, and after the review of existing literature, we find that cases of patients who present dyspnea, shock and the lung changes of interstitial without according to respiratory common diseases tend to perform abdominal computed tomography (CT) to exclude pheochromocytoma. In addition, after receiving symptomatic treatment in acute left heart failure and pulmonary edema patients, having the poor effect, we have to consider the diagnosis of pheochromocytoma.


Assuntos
Neoplasias das Glândulas Suprarrenais/complicações , Feocromocitoma/complicações , Edema Pulmonar/etiologia , Doença Aguda , Humanos , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios X
8.
Front Mol Biosci ; 8: 689037, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34124165

RESUMO

Background: Kidney renal clear cell carcinoma (KIRC) has the highest incidence rate in renal cell carcinoma (RCC). Although bioinformatics is widely used in cancer, few reliable biomarkers of KIRC have been found. Therefore, continued efforts are required to elucidate the potential mechanism of the biogenesis and progression of KIRC. Methods: We evaluated the expression of tumor necrosis factor (TNF) family genes in KIRC, and constructed a prognostic signature. We validated the signature by another database and explored the relationship between the signature and progression of KIRC. We assessed the prognostic value, immune infiltration, and tumor mutation burden (TMB) of the signature in KIRC. Results: We selected four key genes (TNFSF14, TNFRSF19, TNFRSF21, and EDA) to construct the TNF-related signature. We divided the KIRC patients into high- and low-risk groups based on the signature. Patients with higher risk scores had shorter overall survival and worse prognosis. With another database, we validated the value of the signature. The signature was considered as an independent risk factor. A higher level of risk score was relevant to higher level of immune infiltration, especially T regulatory cells, CD8+ T cells, and macrophages. The signature was also associated with TMB scores, and it may have an effect on assessing the efficacy of immunotherapy. Conclusion: This is the first TNF-family-related signature of KIRC and we demonstrated its effectiveness. It played a significant role in predicting the prognosis of patients with KIRC. It also has the potential to become a powerful tool in guiding the immunotherapy of KIRC patients in clinical practice.

9.
Int J Immunopathol Pharmacol ; 34: 2058738420925720, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32490707

RESUMO

We report on a 31-year-old male patient with non-invasive papillary urothelial carcinoma, low grade of the renal pelvis disguised as xanthogranulomatous pyelonephritis. The only symptom of the patient was lower back pain. The initial renal-enhanced computed tomography, magnetic resonance imaging and contrast-enhanced ultrasonography showed that the right kidney had a benign lesion and this inflammatory lesion might be xanthogranulomatous pyelonephritis. A percutaneous renal biopsy was performed and histopathologic examination revealed a xanthogranulomatous pyelonephritis. Initially, we diagnosed it as xanthogranulomatous pyelonephritis and treated it with antibiotics. One and a half years later, the patient suffered from back pain again. The lesion increased significantly and a right renal pelvic lesion with retroperitoneal lymphadenopathy was considered a malignant lesion on computed tomography scan. Therefore, radical resection of right renal pelvis carcinoma was performed under retroperitoneal laparoscopy. Intraoperative frozen section was reported as right renal urothelial carcinoma with no metastasis in renal hilar lymph node. Postoperative histopathologic examination revealed non-invasive papillary urothelial carcinoma, low grade of renal pelvis.


Assuntos
Carcinoma Papilar/cirurgia , Neoplasias Renais/cirurgia , Pelve Renal/cirurgia , Pielonefrite Xantogranulomatosa/diagnóstico , Urotélio/patologia , Adulto , Carcinoma Papilar/diagnóstico por imagem , Carcinoma Papilar/patologia , Diagnóstico Diferencial , Humanos , Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/patologia , Pelve Renal/diagnóstico por imagem , Pelve Renal/patologia , Laparoscopia , Dor Lombar/etiologia , Linfadenopatia/patologia , Imageamento por Ressonância Magnética , Masculino , Pielonefrite Xantogranulomatosa/patologia , Tomografia Computadorizada por Raios X , Ultrassonografia
10.
Int J Immunopathol Pharmacol ; 34: 2058738420931619, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32567409

RESUMO

We presented the clinical data of one patient with renal cell carcinoma associated with idiopathic thrombocytopenic purpura in this case report. We reported a 56-year-old man who presented with petechiae and ecchymoses. Laboratory studies showed the platelet count of 2 × 109/L and an abdominal computed tomography (CT) scan revealed tumors in the right renal. There were purpura on the legs and cough without abdominal pain and melena at this time. Idiopathic thrombocytopenic purpura was diagnosed according to the clinical symptoms and laboratory test. The patient received radical nephrectomy for renal carcinoma, and his idiopathic thrombocytopenic purpura was cured after the surgery. Pathological biopsy confirmed it was renal clear cell carcinoma. The patient has been followed up for more than 3 months after surgery, and the ecchymoses had not been recurred and the patient's thrombocytopenia was recovered. Idiopathic thrombocytopenic purpura associated with kidney cancer is rare. The patient in this case report was treated with radical nephrectomy, and the effectiveness of idiopathic thrombocytopenic purpura was satisfactory.


Assuntos
Carcinoma de Células Renais/complicações , Neoplasias Renais/complicações , Púrpura Trombocitopênica Idiopática/complicações , Biópsia , Medula Óssea/patologia , Carcinoma de Células Renais/cirurgia , Humanos , Neoplasias Renais/cirurgia , Masculino , Pessoa de Meia-Idade , Nefrectomia , Púrpura Trombocitopênica Idiopática/tratamento farmacológico , Tomografia Computadorizada por Raios X
11.
Cancer Manag Res ; 12: 3673-3689, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32547204

RESUMO

Bladder cancer (BCa) is the 10th most prevalent malignancy worldwide and remains a crucial cause of cancer-related morbidity and mortality. Circular RNAs (circRNAs), a large class of endogenous non-coding RNAs, contain unique covalent closed structures and their biogenesis and turnover are regulated by multiple factors. Recently, multiple circRNAs have been found to serve as important factors in several biological processes such as tumorigenesis. An increasing amount of research discovered that circRNAs are dysregulated in multiple cancer tissues compared with matched normal tissues, especially in BCa, indicating that circRNAs can act as biomarkers for the diagnosis and prognosis of BCa. In this review, we focus on the biogenesis, properties, turnover, and functions of circRNAs, summarizing their potential functions and clinical implications in BCa.

12.
Kaohsiung J Med Sci ; 36(9): 712-720, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32436368

RESUMO

To explore the mechanism of microRNA-155 (miR-155) deficiency, protecting against experimental autoimmune prostatitis (EAP) in a toll-like receptor 4 (TLR4)-dependent manner. After wild-type (WT) and miR-155-/- mice were injected with complete Freund's adjuvant and prostate antigen to establish EAP model, half were randomly selected for injection with lipopolysaccharide (LPS, a TLR4 ligand). The following experiments were then performed: von Frey filaments, hematoxylin-eosin (HE) staining, real time quantitative polymerase chain reaction (qRT-PCR), Western blotting, and enzyme-linked immunosorbent assay (ELISA). And the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) and the level of Malondialdehyde (MDA) were detected by corresponding kits.miR-155-/- mice with prostatitis exhibited the attenuated pelvic tactile allodynia/hyperalgesia and the suppressed TLR4/nuclear factor-kappa B (NF-κB) pathway as compared with the WT mice with prostatitis. In addition, LPS enhanced the upregulation of miR-155 and the activation of the TLR4/NF-κB pathway in the prostatic tissues of WT mice with EAP. Furthermore, prostatitis mice had aggravated inflammation scores accompanying the increased interleukin (IL)-1ß, tumor necrosis factor-α, IL-6, interferon-γ, IL-12, and MDA in prostatic tissues with the decreased IL-10, SOD and GSH-Px, and the unaltered IL-4. Compared with the mice from the WT + EAP group and the miR-155-/- + EAP + LPS group, mice from the miR-155-/- + EAP group had decreased inflammation and oxidative stress. miR-155 deficiency ameliorated pelvic tactile allodynia/hyperalgesia in EAP mice and improved inflammation and oxidative stress in prostatic tissues in a TLR4-dependent manner involving NF-κB activation, thereby exerting a therapeutic effect in chronic prostatitis treatment.


Assuntos
Doenças Autoimunes/genética , Hiperalgesia/genética , MicroRNAs/genética , NF-kappa B/genética , Prostatite/genética , Receptor 4 Toll-Like/genética , Animais , Doenças Autoimunes/induzido quimicamente , Doenças Autoimunes/imunologia , Doenças Autoimunes/prevenção & controle , Modelos Animais de Doenças , Adjuvante de Freund/administração & dosagem , Regulação da Expressão Gênica , Glutationa Peroxidase/genética , Glutationa Peroxidase/imunologia , Hiperalgesia/induzido quimicamente , Hiperalgesia/imunologia , Hiperalgesia/prevenção & controle , Interferon gama/genética , Interferon gama/imunologia , Interleucina-12/genética , Interleucina-12/imunologia , Interleucina-1beta/genética , Interleucina-1beta/imunologia , Interleucina-6/genética , Interleucina-6/imunologia , Lipopolissacarídeos/farmacologia , Masculino , Malondialdeído/imunologia , Malondialdeído/metabolismo , Camundongos , Camundongos Knockout , MicroRNAs/imunologia , NF-kappa B/imunologia , Estresse Oxidativo , Antígeno Prostático Específico/administração & dosagem , Prostatite/induzido quimicamente , Prostatite/imunologia , Prostatite/prevenção & controle , Transdução de Sinais , Superóxido Dismutase/genética , Superóxido Dismutase/imunologia , Receptor 4 Toll-Like/imunologia , Fator de Necrose Tumoral alfa/genética , Fator de Necrose Tumoral alfa/imunologia
13.
Aging (Albany NY) ; 12(7): 6352-6369, 2020 04 13.
Artigo em Inglês | MEDLINE | ID: mdl-32283544

RESUMO

Family with sequence similarity 46 member C (FAM46C) is a non-canonical poly(A) polymerase that is associated with tumorigenesis. However, its role in prostate cancer development is not fully understood. Herein, we determined expression pattern of FAM46C in prostate cancer and further identified its effect on the tumorigenesis and chemosensitivity. FAM46C expression was decreased in prostate cancer tissues and cell lines compared with corresponding controls. FAM46C expression was significantly associated with the Gleason score, tumor size and overall survival. FAM46C knockdown in 22RV1 and DU145 cells significantly inhibited apoptosis and promoted cell proliferation and cell cycle progression as well as activation of AKT. FAM46C overexpression had an inverse effect in DU145 cells and inhibited tumor growth in vivo. FAM46C inhibited cell proliferation and cell cycle progression and induced apoptosis via the PTEN/AKT signaling pathway. FAM46C promoted PTEN expression through inhibiting PTEN ubiquitination. The prostate cancer cells and patient-derived xenograft (PDX) mice with high-FAM46C-expressing demonstrated an enhanced chemosensitivity to docetaxel. These findings suggest that FAM46C control cell proliferation, cell cycle and apoptosis through PTEN/AKT signaling pathway and is associated with chemosensitivity of prostate cancer. Modulation of their levels may offer a new approach for improving anti-tumor efficacy for chemotherapeutic agents in prostate cancer.


Assuntos
Docetaxel/farmacologia , Nucleotidiltransferases/metabolismo , PTEN Fosfo-Hidrolase/metabolismo , Polinucleotídeo Adenililtransferase/metabolismo , Neoplasias da Próstata , Animais , Antineoplásicos/farmacologia , Apoptose/efeitos dos fármacos , Carcinogênese/efeitos dos fármacos , Ciclo Celular/efeitos dos fármacos , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Regulação Neoplásica da Expressão Gênica , Humanos , Masculino , Camundongos , Neoplasias da Próstata/tratamento farmacológico , Neoplasias da Próstata/genética , Neoplasias da Próstata/patologia , Proteínas Proto-Oncogênicas c-akt/metabolismo , Transdução de Sinais/efeitos dos fármacos , Ensaios Antitumorais Modelo de Xenoenxerto
14.
Medicine (Baltimore) ; 99(15): e19760, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32282738

RESUMO

BACKGROUND: In recent years, metastatic castration-resistant prostate cancer (MCRPC) and studies related to MCRPC have drawn global attention. The main objective of this bibliometric study was to provide an overview of MCRPC, explore clusters and trends in research and investigate the future direction of MCRPC research. METHODS: A total of 4089 publications published between 1979 and 2018 were retrieved from the Web of Science (WoS) Core Collection database. Different aspects of MCRPC research, including the countries/territories, institutions, journals, authors, research areas, funding agencies and author keywords, were analyzed. RESULTS: The number of annual MCRPC publications increased rapidly after 2010. American researchers played a vital role in this increase, as they published the most publications. The most productive institution was Memorial Sloan Kettering Cancer Center. De Bono, JS (the United Kingdom [UK]) and Scher, HI (the United States of America [USA]) were the two most productive authors. The National Institutes of Health (NIH) funded the largest number of published papers. Analyses of keywords suggested that therapies (abiraterone, enzalutamide, etc.) would attract global attention after US Food and Drug Administration (FDA) approval. CONCLUSIONS: Developed countries, especially the USA, were the leading nations for MCRPC research because of their abundant funding and frequent international collaborations. Therapy was one of the most vital aspects of MCRPC research. Therapies targeting DNA repair or the androgen receptor (AR) signing pathway and new therapies especially prostate-specific membrane antigen (PSMA)-based radioligand therapy (RLT) would be the next focus of MCRPC research.


Assuntos
Neoplasias de Próstata Resistentes à Castração/tratamento farmacológico , Neoplasias de Próstata Resistentes à Castração/secundário , Publicações/normas , United States Food and Drug Administration/organização & administração , Androstenos/uso terapêutico , Benzamidas , Bibliometria , Neoplasias Ósseas/secundário , Reparo do DNA/efeitos dos fármacos , Humanos , Masculino , Metástase Neoplásica , Nitrilas , Feniltioidantoína/análogos & derivados , Feniltioidantoína/uso terapêutico , Antígeno Prostático Específico/sangue , Neoplasias de Próstata Resistentes à Castração/patologia , Publicações/tendências , Receptores Androgênicos/efeitos dos fármacos , Receptores Androgênicos/genética , Reino Unido/epidemiologia , Estados Unidos/epidemiologia
15.
Int J Surg ; 75: 74-79, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31926329

RESUMO

BACKGROUND: The purpose of this bibliometric analysis was to identify and assess the 100 most-cited articles (T100 articles) on urological surgery. METHODS: The Web of Science (WoS) Core Collection database was used to investigate the T100 articles in the field of urological surgery. Different aspects of the T100 articles, including the countries, journals, authors, and topics, were analyzed. RESULTS: The number of citations of T100 articles published between 1989 and 2016 ranged from 334 to 2189. The T100 articles originated from 28 countries, with more than half originating from the USA (n = 80). Professor Bill-Axelson A from Uppsala University Hospital published the largest number of T100 articles as the first author (4) and as a coauthor (1). The Memorial Sloan Kettering Cancer Center from the USA is the top institution with the most T100 articles in the field of urological surgery. The special journal Journal of Urology published 41 of the T100 articles, which had a total of 19780 citations. CONCLUSIONS: Our study analyzed the 100 most-cited articles in the field of urological surgery. The USA is the dominant country in terms of the number of T100 articles, scientists and institutions. Surgery related to urological cancer has garnered the most academic attention, especially prostate cancer and renal cancer.


Assuntos
Bibliometria , Publicações Periódicas como Assunto/estatística & dados numéricos , Procedimentos Cirúrgicos Urológicos , Humanos , Especialidades Cirúrgicas
16.
Am J Transl Res ; 11(3): 1255-1269, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30972160

RESUMO

Prostate cancer (PCa) is a leading cause of cancer-related deaths among men. The anthracycline doxorubicin (DOX) is used for the treatment of this disease, but its considerable side effects and non-selectivity are major drawbacks. Simvastatin (Sim), a lipid-lowering agent, holds great promise as a cancer therapeutic, and thus could be used in combination with DOX. Targeted drug-loaded nano-carriers with antibodies for receptors that are overexpressed on tumor cells are promising strategies for decreasing toxicity to normal tissues and enhancing the efficacy of chemotherapies in cancer treatment. Specifically, human epidermal growth factor 2 is overexpressed and constitutively activated in the PC-3 cell line. Within this context, we designed a co-delivery system coated with Herceptin for PCa, performed physicochemical characterizations, and tested the formulations for cytotoxicity and uptake. The targeted liposomes had a mean particle size of 134 nm, and the drug encapsulation efficiency of both Sim and DOX were greater than 80%. We discovered that the drug combination led to the strong inhibition of PCa both in vitro and in vivo, with inhibitory rates of tumor volumes corresponding to 80.36% and 68.77% of Herceptin-coated liposomes and non-targeted liposomes, respectively. We also found that the anti-tumor mechanisms of the DOX and Sim combination were possibly attributed to synergistic anti-angiogenesis. These results reveal that Herceptin-conjugated liposomes co-loaded with DOX and Sim are a potential novel therapeutic strategy for overcoming PCa.

17.
Medicine (Baltimore) ; 97(28): e11379, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29995779

RESUMO

BACKGROUND: The relationship between male pattern baldness and incidence of prostate cancer remains inconclusive. Hence, we performed the present meta-analysis based on all eligible cohort and case-control studies. METHODS: A comprehensive literature search was performed in October 2017 based on PubMed and Web of Science databases. Pooled relative risk (RR) and its 95% confidence interval (95% CI) was calculated with a DerSimonian and Laird random-effects model. RESULTS: A total of 15 studies were included in this meta-analysis. Overall, no statistically significant association between baldness (any pattern) and prostate cancer risk was identified (RR: 1.03, 95% CI 0.96-1.11). There was obvious heterogeneity across included studies (P < .078 for heterogeneity, I = 36.4%). When subgroup analysis by types of baldness, a statistically significant association was observed for vertex baldness (RR 1.24, 95% CI 1.05-1.46) but not for other types of baldness. CONCLUSION: Individuals with vertex baldness may have an increased risk of prostate cancer. Given the obvious heterogeneity and null results in overall analysis and most of subgroup analyses, further large well-designed prospective cohort studies are warranted to confirm our preliminary findings.


Assuntos
Alopecia/complicações , Neoplasias da Próstata/complicações , Humanos , Incidência , Masculino , Neoplasias da Próstata/epidemiologia , Fatores de Risco
18.
Drug Metab Dispos ; 45(1): 109-117, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-27821436

RESUMO

In recent years, finding effective biomarkers for identifying early stage cancer and predicating prognosis is crucial for renal cell carcinoma (RCC) diagnosis and treatment. In this study, a dramatic decrease of the solute carrier family 47 member 2 (SLC47A2) mRNA in RCC comparing with the paired adjacent nontumor tissues from patients at low Tumor Node Metastasis stage was observed. Thus, patients with SLC47A2 transcriptional repression are susceptible to RCC. Little is known about the regulation mechanism of SLC47A2 We found that it was a bivalent gene that was enriched with both histone H3 lysine 4 trimethylation (H3K4me3) and lysine 27 trimethylation (H3K27me3). Loss of mixed lineage leukemia 1 binding at the gene promoter caused decreased H3K4me3 enrichment and H3K4me3/H3K27me3 ratio, and subsequently repressed the expression of SLC47A2 These two epigenetic markers modulated the expression of SLC47A2 simultaneously, suggesting the regulation pattern for bivalent genes. Histone H3 lysine 27 acetylation also contributed to the expression of SLC47A2 An E2F1-histone deacetylase 10 complex catalyzed deacetylation of H3K27, then prevented the enrichment of H3K4me3, and finally reduced SLC47A2 expression. Consequently, the combined effect of all these factors determined SLC47A2 transcriptional repression in RCC tissues.


Assuntos
Carcinoma de Células Renais/metabolismo , Histonas/metabolismo , Neoplasias Renais/metabolismo , Lisina/metabolismo , Proteínas de Transporte de Cátions Orgânicos/genética , Transcrição Gênica , Acetilação , Carcinoma de Células Renais/genética , Linhagem Celular Tumoral , Imunoprecipitação da Cromatina , Epigênese Genética , Células HEK293 , Histonas/genética , Humanos , Neoplasias Renais/genética , Metilação
19.
J Endourol ; 30(11): 1169-1179, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27626367

RESUMO

INTRODUCTION: The traditional procedure for the management of bilateral ureteral stones is staged ureteroscopic lithotripsy (URS). However, in recent years particularly, some urologists advocate same-session bilateral URS on the ground of success rates and minimal morbidity. This systematic review is to evaluate the efficacy and safety of same-session bilateral ureteroscopy for the treatment of ureteral calculi. MATERIALS AND METHODS: We conducted a bibliographic search using MEDLINE (1980 to August 2015) and EMBASE (1980 to August 2015). Review articles and abstract data were excluded and only studies in English reporting on outcomes of bilateral URS were included in this meta-analysis. Two reviewers independently assessed the quality of each included studies and extracted data. STATA 12.0 was used for meta-analysis. RESULTS: In 11 studies, 431 patients were reportedly treated with bilateral URS. Most of the stone sizes were not larger than 20 mm. The mean stone-free rate is 96% for the distal ureter, 85% for the middle ureter, and 72% for the proximal ureter. The mean operative time ranged from 45 to 100 minutes with an average hospital stay from 2 to 4 days. The overall complications rates were 17%, with the incidence of postoperative fever 4%, postoperative pain 20%, and gross hematuria 4%. Other complications, including urosepsis, urinary tract infection, small mucosal laceration, stone migration, and ureteral perforation, accounted for 6% of overall complications. CONCLUSIONS: This meta-analysis found that bilateral same-session ureteroscopy could achieve a high overall stone-free rate. There might be a relatively higher complication incidence, but most of the complications are minor. For selected cases, bilateral URS could be safe and effective.


Assuntos
Litotripsia/métodos , Cálculos Ureterais/cirurgia , Ureteroscopia/métodos , Idoso , Feminino , Febre , Hematúria , Humanos , Incidência , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Duração da Cirurgia , Dor Pós-Operatória , Segurança do Paciente , Sepse , Resultado do Tratamento , Ureter/cirurgia , Cálculos Ureterais/epidemiologia , Adulto Jovem
20.
World J Surg Oncol ; 14: 74, 2016 Mar 09.
Artigo em Inglês | MEDLINE | ID: mdl-26957001

RESUMO

BACKGROUND: Diffuse renal and retroperitoneal metastasis of prostatic origin is an uncommon spread pattern of prostate cancer. CASE PRESENTATION: We described a 74-year-old male patient who was admitted because of dysuria and nocturia. Physical examination and imaging study indicated prostate mass, and laboratory analysis revealed elevated prostate specific antigen (PSA). The diagnosis of prostate cancer was established after biopsy. In the further evaluation, diffuse renal and retroperitoneal metastasis of prostate cancer was confirmed. Radiotherapy combined with endocrine therapy was given. CONCLUSIONS: Our present case emphasized that the routine metastatic work-up was quite necessary, since a small proportion of men with advanced prostate cancer might experience metastases in atypical sites.


Assuntos
Adenocarcinoma/patologia , Neoplasias Renais/secundário , Neoplasias da Próstata/patologia , Neoplasias Retroperitoneais/secundário , Adenocarcinoma/terapia , Idoso , Quimiorradioterapia , Humanos , Neoplasias Renais/terapia , Masculino , Gradação de Tumores , Prognóstico , Neoplasias da Próstata/terapia , Neoplasias Retroperitoneais/terapia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...