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1.
Neuropsychiatr Dis Treat ; 20: 697-723, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38559773

RESUMO

Purpose: Sleep plays an essential role in maintaining both physical and mental well-being. Many patients in psychiatric outpatient settings complain of insomnia. However, the causal relationship between insomnia and depressive symptoms in all mental illnesses remains unclear. Moreover, research on insomnia and the continuation of outpatient treatment is lacking. We hypothesize a high correlation between depression and insomnia among patients with diverse mental illnesses. Additionally, we posit that insomnia significantly influences the continuity of outpatient visits. To this end, we evaluated insomnia and depression symptoms in psychiatric patients both at their initial visit and one year later. We also examined factors related to insomnia at the outset and factors associated with the ongoing utilization of outpatient treatment. Patients and Methods: The participants of the study consisted of patients who made their first visit to the outpatient department of psychiatry and neurology at Showa University East Hospital between June 1, 2021, and March 31, 2023, and who continued attending the outpatient clinic for one year. Clinical characteristics were assessed using the Self-rating Depression Scale (SDS) and the Athens Insomnia Scale (AIS). Results: The study's findings were collected from a cohort of 1106 patients and revealed that more than 70% experienced insomnia at the time of their initial visit. In total 137 patients continued to receive outpatient treatment for one year, and their AIS scores improved from 9 points to 5 points. A multivariate analysis revealed that the SDS items of depressed mood and insomnia were confounding factors influencing AIS improvement. Conclusion: Given that 70% of patients complained of insomnia at the time of their first visit and that sleep improved in many of the 12.4% of patients who continued to receive outpatient treatment for at least one year, the results suggest that sleep status is an important determinant of whether a patient continues to attend outpatient clinics.

3.
J Radiol Prot ; 43(4)2023 11 23.
Artigo em Inglês | MEDLINE | ID: mdl-37939385

RESUMO

The diagnostic reference level (DRL) is an effective tool for optimising protection in medical exposures to patients. However regarding air kerma at the patient entrance reference point (Ka,r), one of the DRL quantities for endoscopic retrograde cholangiopancreatography (ERCP), manufacturers use a variety of the International Electrotechnical Commission and their own specific definitions of the reference point. The research question for this study was whetherKa,ris appropriate as a DRL quantity for ERCP. The purpose of this study was to evaluate the difference betweenKa,rand air kerma incident on the patient's skin surface (Ka,e) at the different height of the patient couch for a C-arm system. Fluoroscopy and radiography were performed using a C-arm system (Ultimax-i, Canon Medical Systems, Japan) and a over-couch tube system (CUREVISTA Open, Fujifilm Healthcare, Japan).Ka,ewas measured by an ion chamber placed on the entrance surface of the phantom. Kerma-area product (PKA) andKa,rwere measured by a built-inPKAmeter and displayed on the fluoroscopy system.Ka,edecreased whileKa,rincreased as the patient couch moved away from the focal spot. The uncertainty of theKa,e/Ka,rratio due to the different height of the patient couch was estimated to be 75%-94%.Ka,rmay not accurately representKa,e.PKAwas a robust DRL quantity that was independent of the patient couch height. We cautioned against optimising patient doses in ERCP with DRLs set in terms ofKa,rwithout considering the patient couch height of the C-arm system. Therefore, we recommend thatKa,ris an inappropriate DRL quantity in ERCP using the C-arm system.


Assuntos
Colangiopancreatografia Retrógrada Endoscópica , Níveis de Referência de Diagnóstico , Humanos , Colangiopancreatografia Retrógrada Endoscópica/efeitos adversos , Doses de Radiação , Fluoroscopia , Radiografia
4.
Radiol Phys Technol ; 16(2): 299-309, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37046154

RESUMO

This study aimed to determine the optimal radiographic conditions for detecting lesions on digital chest radiographs using an indirect conversion flat-panel detector with a copper (Cu) filter. First, we calculated the effective detective quantum efficiency (DQE) by considering clinical conditions to evaluate the image quality. We then measured the segmentation accuracy using a U-net convolutional network to verify the effectiveness of the Cu filter. We obtained images of simulated lung tumors using 10-mm acrylic spheres positioned at the right lung apex and left middle lung of an adult chest phantom. The Dice coefficient was calculated as the similarity between the output and learning images to evaluate the accuracy of tumor area segmentation using U-net. Our results showed that effective DQE was higher in the following order up to the spatial frequency of 2 cycles/mm: 120 kV + no Cu, 120 kV + Cu 0.1 mm, and 120 kV + Cu 0.2 mm. The segmented region was similar to the true region for mass-area extraction in the left middle lobe. The lesion segmentation in the upper right lobe with 120 kV + no Cu and 120 kV + Cu 0.1 mm was less successful. However, adding a Cu filter yielded reproducible images with high Dice coefficients, regardless of the tumor location. We confirmed that adding a Cu filter decreases the X-ray absorption efficiency while improving the signal-to-noise ratio (SNR). Furthermore, artificial intelligence accurately segments low-contrast lesions.


Assuntos
Aprendizado Profundo , Neoplasias , Humanos , Cobre , Inteligência Artificial , Radiografia , Intensificação de Imagem Radiográfica/métodos
5.
Int J Mol Sci ; 23(23)2022 Dec 06.
Artigo em Inglês | MEDLINE | ID: mdl-36499744

RESUMO

The role of exogenous microRNAs (miRNAs) in renal fibrosis is poorly understood. Here, the effect of exogenous miRNAs on renal fibrosis was investigated using a renal fibrosis mouse model generated by unilateral ureteral obstruction (UUO). miRNA microarray analysis and quantitative reverse-transcription polymerase chain reaction showed that miR-122-5p was the most downregulated (0.28-fold) miRNA in the kidneys of UUO mice. The injection of an miR-122-5p mimic promoted renal fibrosis and upregulated COL1A2 and FN1, whereas an miR-122-5p inhibitor suppressed renal fibrosis and downregulated COL1A2 and FN1. The expression levels of fibrosis-related mRNAs, which were predicted targets of miR-122-5p, were evaluated. The expression level of TGFBR2, a pro-fibrotic mRNA, was upregulated by the miR-122-5p mimic, and the expression level of FOXO3, an anti-fibrotic mRNA, was upregulated by the miR-122-5p inhibitor. The protein expressions of TGFBR2 and FOXO3 were confirmed by immunohistochemistry. Additionally, the expression levels of LC3, downstream anti-fibrotic mRNAs of FOXO3, were upregulated by the miR-122-5p inhibitor. These results suggest that miR-122-5p has critical roles in renal fibrosis.


Assuntos
Nefropatias , MicroRNAs , Obstrução Ureteral , Camundongos , Animais , Fibrose , Nefropatias/genética , Nefropatias/metabolismo , Obstrução Ureteral/genética , Obstrução Ureteral/metabolismo , MicroRNAs/genética , MicroRNAs/metabolismo , RNA Mensageiro
6.
Pathogens ; 11(11)2022 Nov 09.
Artigo em Inglês | MEDLINE | ID: mdl-36365064

RESUMO

The incidence of Japanese cedar pollinosis is increasing significantly in Japan, and a recent survey suggested that about 40% of the population will develop this disease. However, spontaneous remission is rare. The increased incident rate of Japanese cedar pollinosis is a huge issue in Japan. Allergen immunotherapy is the only fundamental treatment that modifies the natural course of allergic rhinitis and provides long-term remission that cannot be induced by general drug therapy. Sublingual immunotherapy for Japanese cedar pollinosis has been developed and has been covered by health insurance since 2014 in Japan. The indication for children was expanded in 2018. Clinical trials of sublingual immunotherapy for Japanese cedar pollinosis have demonstrated its long-term efficacy and safety. It is recommended for patients who wish to undergo fundamental treatment regardless of the severity of the practical guidelines for the management of allergic rhinitis in Japan. For sublingual immunotherapy, a long-term treatment period of 3 years or longer is recommended to obtain stable therapeutic effects. In recent years, evidence based on basic research and clinical trials has demonstrated sublingual immunotherapy-induced immunological changes and efficacy in patients; however, biomarkers that objectively predict and judge these therapeutic effects need to be established.

7.
Clin Case Rep ; 10(10): e6444, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36285037

RESUMO

Hypersensitivity reaction to cisplatin can result in discontinuation of chemoradiotherapy in patients with head and neck squamous cell carcinoma. We describe a patient with nasopharyngeal carcinoma who developed cisplatin hypersensitivity and was successfully treated with cisplatin desensitization. Furthermore, it had little impact on the therapeutic performance of cisplatin-combined chemoradiotherapy.

8.
Medicine (Baltimore) ; 101(37): e30636, 2022 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-36123836

RESUMO

RATIONALE: Nodular fasciitis (NF) can be misdiagnosed as a sarcoma because of its rapid growth and pathological features, such as nuclear atypia and mitoses. PATIENT CONCERNS: We present a rare case of a 72-year-old Japanese man who developed NF with suspected postirradiation myxofibrosarcoma (MFS) after segmentectomy for left-sided osteoradionecrosis (ORN) of the mandible. DIAGNOSIS: A mass appeared in the intraoral postoperative wound 1 year after left-sided mandibular segmentectomy and showed rapid growth, reaching a size of 50 mm within 2 months. Incisional biopsy revealed strongly Ki-67-positive spindle-shaped cells with large irregular nuclei and a diagnosis of postirradiation MFS. INTERVENTIONS: The patient was diagnosed with oropharyngeal cancer (T4aN2bM0) and underwent surgical resection of primary oropharyngeal squamous cell carcinoma with selective neck dissection and reconstruction with a rectus abdominis musculocutaneous flap at the age of 57 years, followed by postoperative 66 Gy of radiotherapy combined with cisplatin administration. No recurrent or metastatic lesions of oropharyngeal squamous cell carcinoma have been detected for > 10 years. However, the ORN of the jaw worsened, and the patient underwent sequestrectomy 3 times on the right side of the mandible, followed by a left-sided segmentectomy at the age of 72 years. One year after segmentectomy, a 10-mm mass with soft-to-firm consistency appeared in the buccal mucosa of the wound and grew rapidly. An incisional biopsy revealed MFS. Complete resection under general anesthesia was immediately performed. OUTCOMES: The histopathological diagnosis of the excised specimen was NF without any malignant findings. Two years after surgery, there was no evidence of recurrence or metastasis. LESSONS: NF grows rapidly and has pathological features similar to sarcoma, making differential diagnosis difficult at the time of incisional biopsy. Further studies should be conducted to determine the clinical and pathological features of this tumor.


Assuntos
Fasciite , Fibrossarcoma , Neoplasias de Cabeça e Pescoço , Histiocitoma Fibroso Maligno , Sarcoma , Adulto , Idoso , Cisplatino , Fibrossarcoma/cirurgia , Neoplasias de Cabeça e Pescoço/cirurgia , Histiocitoma Fibroso Maligno/cirurgia , Humanos , Antígeno Ki-67 , Masculino , Pessoa de Meia-Idade , Pneumonectomia , Sarcoma/cirurgia , Carcinoma de Células Escamosas de Cabeça e Pescoço
9.
Clin Case Rep ; 10(7): e6050, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35865779

RESUMO

Metastatic intrathyroid thymic carcinoma (ITTC) is a rare cancer with no effective drugs for controlling. This case report has shown genomic and immune microenvironment profiles in metastatic ITTC and emphasized an immunosuppression via a PD-1/PD-L1 pathway, possibly strengthening the rationale for immune checkpoint blockade as a novel treatment.

10.
Mol Cancer Res ; 20(11): 1674-1685, 2022 11 03.
Artigo em Inglês | MEDLINE | ID: mdl-35857355

RESUMO

The mechanisms of how cancer cells are selected and evolve to establish distant metastatic colonies remain unclear. Tumor heterogeneity and lack of biomarkers are some of the most difficult challenges in cancer biology and treatment. Here using mouse models for triple-negative breast cancer (TNBC) metastasis, we report heterogeneous expression of DNA methyltransferase 3B (DNMT3B) in both mouse and human primary tumors. High levels of DNMT3B were correlated with poor clinical outcomes in multiple human breast cancer datasets. Mechanistically, clonal cells with high DNMT3B (DNMT3BH) showed higher vimentin (VIM) expression and displayed enhanced epithelial-to-mesenchymal transition capacity. Deletion of VIM diminished the metastatic phenotype of DNMT3BH cells. Importantly, in preclinical mouse models in which the primary tumors were surgically removed, perioperative targeting of DNMT3B in combination with chemotherapy markedly suppressed tumor recurrence and metastasis. Our studies identify DNMT3B-mediated transcription regulation as an important mediator of tumor heterogeneity and show that DNMT3B is critical for tumor invasion and metastasis, reinforcing its potential as a target for treating metastatic disease. IMPLICATIONS: Our findings of transcriptome changes mediated by DNMT3B provide new mechanistic insight for intratumor heterogeneity and chemoresistance, and therapeutic targeting of DNMT3B in combination with chemotherapy offer additional treatment options for metastatic disease especially for patients with TNBC.


Assuntos
DNA (Citosina-5-)-Metiltransferases , Neoplasias de Mama Triplo Negativas , Animais , Humanos , Camundongos , Linhagem Celular Tumoral , DNA (Citosina-5-)-Metiltransferases/genética , DNA (Citosina-5-)-Metiltransferases/metabolismo , Transição Epitelial-Mesenquimal/genética , Regulação Neoplásica da Expressão Gênica , Recidiva Local de Neoplasia/genética , Neoplasias de Mama Triplo Negativas/tratamento farmacológico , Neoplasias de Mama Triplo Negativas/genética , Neoplasias de Mama Triplo Negativas/metabolismo , DNA Metiltransferase 3B
11.
Front Med (Lausanne) ; 9: 849075, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35646947

RESUMO

Background: Age-dependent renal impairment contributes to renal dysfunction in both the general population and young and middle-aged patients with renal diseases. Pathological changes in age-dependent renal impairment include glomerulosclerosis and tubulointerstitial fibrosis. The molecules involved in age-dependent renal impairment are not fully elucidated. MicroRNA (miRNA) species were reported to modulate various renal diseases, but the miRNA species involved in age-dependent renal impairment are unclear. Here, we investigated miRNAs in age-dependent renal impairment, and we evaluated their potential as biomarkers and therapeutic targets. Methods: We conducted an initial microarray profiling analysis to screen miRNAs whose expression levels changed in kidneys of senescence-accelerated resistant (SAMR1)-10-week-old (wk) mice and SAMR1-50wk mice and senescence-accelerated prone (SAMP1)-10wk mice and SAMP1-50wk mice. We then evaluated the expressions of differentially expressed miRNAs in serum from 13 older patients (>65 years old) with age-dependent renal impairment (estimated glomerular filtration ratio <60 mL/min/1.73 m2) by a quantitative real-time polymerase chain reaction (qRT-PCR) and compared the expressions with those of age-matched subjects with normal renal function. We also administered miRNA mimics or inhibitors (5 nmol) with a non-viral vector (polyethylenimine nanoparticles: PEI-NPs) to SAMP1-20wk mice to investigate the therapeutic effects. Results: The qRT-PCR revealed a specific miRNA (miRNA-503-5p) whose level was significantly changed in SAMP1-50wk mouse kidneys in comparison to the controls. The expression level of miRNA-503-5p was upregulated in the serum of the 13 patients with age-dependent renal impairment compared to the age-matched subjects with normal renal function. The administration of a miRNA-503-5p-inhibitor with PEI-NPs decreased the miRNA-503-5p expression levels, resulting in the inhibition of renal fibrosis in mice via an inhibition of a pro-fibrotic signaling pathway and a suppression of glomerulosclerosis in mice by inhibiting intrinsic signaling pathways. Conclusion: The serum levels of miRNA-503-5p were decreased in patients with age-dependent renal impairment. However, inhibition of miRNA-503-5p had no effect on age-dependent renal impairment, although inhibition of miRNA-503-5p had therapeutic effects on renal fibrosis and glomerulosclerosis in an in vivo animal model. These results indicate that miRNA-503-5p might be related to age-dependent renal impairment.

12.
J Vis Exp ; (183)2022 05 10.
Artigo em Inglês | MEDLINE | ID: mdl-35635449

RESUMO

microRNSa (miRNAs), small noncoding RNAs (21-25 bases) that are not translated into proteins, inhibit lots of target messenger RNAs (mRNAs) by destabilizing and inhibiting their translation in various kidney diseases. Therefore, alternation of miRNA expression by exogenous artificially synthesized miRNA mimics is a potentially useful treatment option for inhibiting the development of many kidney diseases. However, because serum RNAase immediately degrades systematically administered exogenous miRNA mimics in vivo, delivery of miRNA to the kidney remains a challenge. Therefore, vectors that can protect exogenous miRNA mimics from degradation by RNAase and significantly deliver them to the kidney are necessary. Many studies have used viral vectors to deliver exogenous miRNA mimics or inhibitors to the kidney. However, viral vectors may cause an interferon response and/or genetic instability. Therefore, the development of viral vectors is also a hurdle for the clinical use of exogenous miRNA mimics or inhibitors. To overcome these concerns regarding viral vectors, we developed a nonviral vector method to deliver miRNA mimics to the kidney using tail vein injection of polyethylenimine nanoparticles (PEI-NPs), which led to significant overexpression of target miRNAs in several mouse models of kidney disease.


Assuntos
Nefropatias , MicroRNAs , Nanopartículas , Animais , Rim/metabolismo , Nefropatias/genética , Camundongos , MicroRNAs/genética , MicroRNAs/metabolismo , Polietilenoimina , RNA Mensageiro
13.
J Vis Exp ; (182)2022 04 29.
Artigo em Inglês | MEDLINE | ID: mdl-35575519

RESUMO

MicroRNAs (miRNAs) are small, noncoding RNAs consisting of 21-25 bases. They are not translated into proteins but rather work to impede the functioning of their target messenger RNAs (mRNAs) by destabilizing them and disrupting their translation. Although the miRNA expression profiles in various mouse organs and tissues have been investigated, there have been no standard methods for purifying and quantifying mouse kidney and serum miRNAs. We have established an effective and reliable method for extracting and evaluating the miRNA expression in the serum and kidney of mice with age-dependent renal impairment. The method uses quantitative reverse-transcription-polymerase chain reaction (qRT-PCR), and the protocol requires six steps: (1) preparing senescence-accelerated mouse resistance 1 (SAMR1) mice and senescence-accelerated mouse prone (SAMP1) mice; (2) extracting serum samples from these mice; (3) extracting a kidney sample from each mouse; (4) extracting total RNA (including miRNA) from kidney and serum samples from each mouse; (5) the synthesis of complementary DNA (cDNA) with reverse transcription from the miRNA; (6) conducting a qRT-PCR using the cDNA obtained. This protocol was used to confirm that, compared to the controls, the expression of miRNA-7218-5p and miRNA-7219-5p was significantly changed in the kidney and serum of a mouse model of age-dependent renal impairment. This protocol also clarified the relationship between the kidney and serum of the mouse model of age-dependent renal impairment. This protocol can be used to determine miRNA expression in the kidney and serum of mice with age-dependent renal impairment.


Assuntos
Rim , MicroRNAs , Animais , DNA Complementar , Modelos Animais de Doenças , Rim/metabolismo , Camundongos , MicroRNAs/genética , MicroRNAs/metabolismo , RNA Mensageiro/metabolismo , Reação em Cadeia da Polimerase em Tempo Real/métodos
14.
Artigo em Inglês | MEDLINE | ID: mdl-35595622

RESUMO

OBJECTIVE: This study aimed to evaluate intercellular bridges in the depth of invasion (DOI) measurement area as prognostic factors in oral squamous cell carcinoma (OSCC). STUDY DESIGN: The mode of invasion was determined based on the Yamamoto-Kohama classification system by observing the hematoxylin-eosin-stained whole-slide images of specimens obtained from 78 patients with OSCC, and the clinicopathologic features were characterized. The presence of intercellular bridges was analyzed in 46 patients with Yamamoto-Kohama classification grade ≥3 whose DOI was measured by dividing the measurement area into 3 parts: the surface, center, and front of the tumor. RESULTS: Univariate analyses identified lymph node metastasis, loss of intercellular bridges in the DOI measurement area, DOI of ≥4500 µm, and pattern of invasion 4C-4D as negative prognostic factors. Multivariate analyses revealed that lymph node metastasis and the loss of intercellular bridges in the entire area were independent factors, with hazard ratios of 9.34 (95% confidence interval, 2.09-42.03; P = .003) and 3.64 (95% confidence interval, 1.10-11.99; P = .045), respectively. CONCLUSIONS: Loss of intercellular bridges in the DOI measurement area is a negative prognostic factor for OSCC and may be useful in selecting treatment.


Assuntos
Carcinoma de Células Escamosas , Neoplasias de Cabeça e Pescoço , Neoplasias Bucais , Carcinoma de Células Escamosas/patologia , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Metástase Linfática , Neoplasias Bucais/patologia , Invasividade Neoplásica/patologia , Estadiamento de Neoplasias , Prognóstico , Estudos Retrospectivos , Carcinoma de Células Escamosas de Cabeça e Pescoço
15.
Clin Exp Dent Res ; 8(2): 506-512, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35257502

RESUMO

BACKGROUND: The purpose of this study was to evaluate the association between the immunohistochemistry (IHC) of protein tyrosine kinase 7 (PTK7) expression and clinicopathological factors of oral squamous cell carcinoma (OSCC). METHODS: Tissue specimens were obtained from 80 patients with primary OSCC. IHC scoring was conducted according to the rate of positive cell and staining intensity. We used the IHC score to classify the degree of PTK7 expression and evaluate clinicopathological factors and prognosis. RESULTS: The number of the high expression group (IHC Score 2 or 3) was 45 cases and that of the low expression group (IHC Score 0 or 1) was 35 cases. A significant difference between high expression and low expression groups was found in the N category (p = .008), degree of differentiation (p < .001), and pattern of invasion (p < .001). In accordance with the exacerbation of OSCC with respect to three parameters (N category, degree of differentiation, and pattern of invasion), the ratio of high expression of PTK7 increased. The overall 5-year survival rate was 59.3% in the high expression group and 87.3% in the low expression group (p < .05). The pathological prognostic signs affecting overall survival were evaluated by univariate analysis and multivariate analysis with Cox proportional hazards model and showed an association with lymph node metastasis and invasion patterns. CONCLUSION: This study suggests that a high IHC score of PTK7 is a potential biomarker for predicting potential metastasis.


Assuntos
Moléculas de Adesão Celular , Neoplasias Bucais , Receptores Proteína Tirosina Quinases , Carcinoma de Células Escamosas de Cabeça e Pescoço , Moléculas de Adesão Celular/genética , Humanos , Neoplasias Bucais/patologia , Prognóstico , Proteínas Tirosina Quinases , Receptores Proteína Tirosina Quinases/genética , Carcinoma de Células Escamosas de Cabeça e Pescoço/patologia
16.
Radiol Phys Technol ; 15(1): 54-62, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35067903

RESUMO

Occupational eye dose monitoring during interventional radiology and interventional cardiology is important to avoid radiation-induced cataracts. The aim of this study was to assess the eye dose correlation with neck dose and patient-related quantities for interventional cardiology physicians and nurses. The originality of this study lies in obtaining correlations between the location of the dosimeter and eye dose radiation readings among different procedures and practitioners. The doses were measured for each procedure (18 procedures of coronary angiography and 16 procedures of percutaneous coronary intervention) using an active personal dosimeter. The eye dose for physicians was not correlated with the neck dose. The eye dose for nurses had a good correlation with the neck dose during both coronary angiography (R2 = 0.91) and percutaneous coronary intervention (R2 = 0.93). Kerma-area product values may be used for a rough estimation of the eye dose for physicians during routine coronary angiography procedures (R2 = 0.76). For nurses, the neck dose is a good proxy for the eye dose during coronary angiography and percutaneous coronary intervention procedures.


Assuntos
Cardiologia , Cristalino , Exposição Ocupacional , Proteção Radiológica , Humanos , Exposição Ocupacional/análise , Doses de Radiação , Proteção Radiológica/métodos , Radiologia Intervencionista
17.
Diagn Cytopathol ; 50(6): E151-E155, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35100480

RESUMO

Nasopharyngeal carcinoma (NPC) is an Epstein-Barr virus (EBV)-associated tumor with a high incidence in Asian countries. NPC is a type of squamous cell carcinoma originating from the nasopharyngeal mucosa. Although rare, NPCs show some uncommon histologic variants; these variations remain to be understood. We described the cytologic characteristics of a rare NPC variant with abundant intracytoplasmic mucin. A 37-year-old Japanese man presented to our hospital with bilateral ear discomfort and palpable lymph nodes. Nasopharyngeal biopsy showed tumor cells with abundant intracytoplasmic, Alcian blue-PAS-positive mucin. Immunohistochemical analysis demonstrated that the tumor cells were positive for p40 and p53. Epstein-Barr encoding region (EBER) in situ hybridization (ISH) showed EBV infection of the tumor cells. Fluorescence in situ hybridization (FISH) using MAML2 break-apart probes did not show split signals. Fine needle aspiration biopsy (FNAB) cytology of the metastatic lymph nodes was also performed. Smear samples had a necrotic and inflammatory background with both lymphocyte and neutrophil infiltration. Highly cellular tumor clusters and dispersed cells with naked nuclei were observed. The tumor cells showed a clear cytoplasm with distinct cell borders. Intracytoplasmic mucin pushing the nucleus to the periphery was observed in the scattered tumor cells in a liquid-based cytology sample. Given these findings, the final diagnosis was advanced nasopharyngeal carcinoma; cisplatin-based chemoradiation therapy was performed as the first-line treatment. The tumor recurred 8 months after completing the treatment. The recurrent nasopharyngeal tumor was a typical non-keratinizing NPC and lacked intracytoplasmic mucin.


Assuntos
Infecções por Vírus Epstein-Barr , Neoplasias Nasofaríngeas , Infecções por Vírus Epstein-Barr/diagnóstico , Herpesvirus Humano 4/genética , Humanos , Hibridização in Situ Fluorescente , Mucinas , Carcinoma Nasofaríngeo/diagnóstico , Neoplasias Nasofaríngeas/diagnóstico
18.
Saudi J Kidney Dis Transpl ; 33(Supplement): S147-S158, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37675745

RESUMO

An arteriovenous fistula (AVF) can fail for different reasons at each stage after its creation. The study aimed to analyze the associations of the clinical and laboratory parameters, including the intraoperative AVF blood flow, with AVF failure at different periods (3 weeks and 3, 6, 9, 12, 24, and 36 months) after the AVF's creation and to evaluate the usefulness of the intraoperative AVF blood flow as a surrogate marker of AVF failure in patients with end-stage renal disease (ESRD). This was a single-center, retrospective cohort study that included 130 patients with ESRD who underwent the creation of new radiocephalic AVFs. The associations of the preoperative clinical and laboratory parameters and intraoperative flow with AVF failure in the different observation periods were investigated. Intraoperative AVF blood flow was significantly associated with AVF failure from 3 weeks to 24 months (P <0.05). Hemoglobin level and the size of the anastomosis were significantly associated with AVF failure at 6 months (P <0.05). In the analysis of the receiver operating characteristic curve, intraoperative AVF blood flow was significant from 3 weeks to 24 months (P <0.05). The intraoperative blood flow with the greatest sensitivity and specificity was 205-225 mL/min. Intraoperative blood flow was independently associated with AVF failure from 3 weeks to 24 months after the AVF's creation. An intraoperative AVF blood flow of >225 mL/min is crucial for long-term AVF patency. The intraoperative AVF blood flow level could be a surrogate marker of AVF failure in ESRD patients.


Assuntos
Fístula Arteriovenosa , Falência Renal Crônica , Humanos , Estudos Retrospectivos , Biomarcadores , Falência Renal Crônica/diagnóstico , Falência Renal Crônica/terapia , Fatores de Risco
19.
Transl Res ; 244: 1-31, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-34871811

RESUMO

The aim of this study was to identify miRNAs that regulate AKI and develop their applications as diagnostic biomarkers and therapeutic agents. First, kidney tissues from two different AKI mouse models, namely, AKI induced by the administration of lipopolysaccharide (LPS) causing sepsis (LPS-AKI mice) and AKI induced by renal ischemia-reperfusion injury (IRI-AKI mice), were exhaustively screened for their changes of miRNA expression compared with that of control mice by microarray analysis followed by quantitative RT-PCR. The initial profiling newly identified miRNA-5100, whose expression levels significantly decreased in kidneys in both LPS-AKI mice and IRI-AKI mice. Next, the administration of miRNA-5100-mimic conjugated with a nonviral vector, polyethylenimine nanoparticles (PEI-NPs), via the tail vein significantly induced miRNA-5100 overexpression in the kidney and prevented the development of IRI-AKI mice by inhibiting several apoptosis pathways in vivo. Furthermore, serum levels of miRNA-5100 in patients with AKI were identified as significantly lower than those of healthy subjects. ROC analysis showed that the serum expression level of miRNA-5100 can identify AKI (cut-off value 0.14, AUC 0.96, sensitivity 1.00, specificity 0.833, p<0.05). These results suggest that miRNA-5100 regulates AKI and may be useful as a novel diagnostic biomarker and therapeutic target for AKI.


Assuntos
Injúria Renal Aguda , MicroRNAs , Injúria Renal Aguda/genética , Animais , Biomarcadores , Humanos , Rim/metabolismo , Lipopolissacarídeos , Camundongos , MicroRNAs/genética
20.
Pragmat Obs Res ; 12: 81-91, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34393541

RESUMO

PURPOSE: We compared the efficacy of teneligliptin versus linagliptin for glycemic control and renoprotection in patients with advanced-stage diabetic kidney disease. PATIENTS AND METHODS: Changes in the glycated hemoglobin (HbA1c), fasting blood glucose concentration, urine albumin-to-creatinine ratio (UACR), and estimated glomerular filtration rate (eGFR) during a 12-month period were retrospectively analyzed after switching from linagliptin to teneligliptin in 13 patients with advanced-stage diabetic kidney disease (teneligliptin group). Thirteen propensity score-matched patients who were treated with linagliptin alone served as controls (linagliptin group). RESULTS: The HbA1c, fasting blood glucose concentration, and UACR did not change during the 12-month study period in either group. The annual change rate in the eGFR did not differ between before and after baseline in either group. CONCLUSION: Switching from linagliptin to teneligliptin may not improve glycemic control, reduce urinary protein excretion, or ameliorate the rate of renal function decline in patients with advanced-stage diabetic kidney disease. These results suggest that teneligliptin may not be more advantageous for glycemic control and renoprotection compared with linagliptin in patients with advanced-stage diabetic kidney disease.

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