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901.
《Renal failure》2013,35(7):726-729
AbstractAsk-Upmark kidney is a rare diagnosis of segmental hypoplasia in pediatric population clinically characterized by severe hypertension potentially treatable with partial to total nephrectomy. Although originally was described only as a congenital anomaly, recent data suggest to be caused by vesicoureteral reflux, either in utero or in early childhood and pyelonephritis. The case we reported indicates that Ask-Upmark kidney should be considered as potential cause of hypertension and renal failure both in children and adults. The renal biopsy is necessary for early diagnosis and may consent to normalize blood pressure with nephrectomy; however, if renal damage is severe and progressive with tubulointerstitial nephritis, surgical management is excluded and renal transplant should be considered. 相似文献
902.
Characterization of clear cell renal cell carcinoma with diffusion kurtosis imaging: correlation between diffusion kurtosis parameters and tumor cellularity
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Yongming Dai Qiuying Yao Guangyu Wu Dongmei Wu Lianming Wu Li Zhu Rong Xue Jianrong Xu 《NMR in biomedicine》2016,29(7):873-881
The aim of this study was to evaluate the role of diffusion kurtosis imaging (DKI) in the characterization of clear cell renal cell carcinoma (ccRCC) and to correlate DKI parameters with tumor cellularity. Fifty‐nine patients with pathologically diagnosed ccRCCs were evaluated by DKI on a 3‐T scanner. Regions of interest were drawn on the maps of the mean diffusion coefficient (MD) and mean diffusion kurtosis (MK). All ccRCCs were histologically graded according to the Fuhrman classification system. Tumor cellularity was measured by the nuclear‐to‐cytoplasm (N/C) ratio and the number of tumor cell nuclei (NTCN). ccRCCs were classified as grade 1 (n = 23), grade 2 (n = 24), grade 3 (n = 10) and grade 4 (n = 3). Both MD and MK could readily discriminate between normal renal parenchyma and ccRCCs (p < 0.001), and receiver operating characteristic (ROC) curve analysis showed that MK exhibited a better performance with an area under the ROC curve of 0.874 and sensitivity/specificity of 68.33%/100% (p < 0.001). Further, MD and MK were significantly different between grade 1 and grades 3 and 4 (p = 0.01, p < 0.001) and between grade 2 and grades 3 and 4 (p = 0.015, p < 0.005), respectively. However, no significant difference was found between grade 1 and grade 2 (p > 0.05) for both MD and MK. With regard to NTCN, no significant difference was found between any two grades (p > 0.05), and the N/C ratio changed significantly with grade (p < 0.01, between any two grades). Negative correlations were found between MK and MD (r = –0.56, p < 0.001), and between MD and N/C ratio (r = –0.36, p < 0.005), whereas MK and the N/C ratio were positively correlated (r = 0.45, p = 0.003). DKI could quantitatively characterize ccRCC with different grades by probing non‐Gaussian diffusion properties related to changes in the tumor microenvironment or tissue complexities in the tumor. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
903.
Ibrahim Turkistani Mohammed Badawi Omar Taibah Omar Alserihy Muaid Morad 《Renal failure》2014,36(10):1510-1515
Depression commonly overlaps with uremic symptoms, but anxiety is less commonly studied among renal patients. The symptoms of medical illness, along with the psychological and social stresses that often accompany a debilitating chronic disease, are thought to produce deleterious psychological consequences. We sought to determine the prevalence and predictors of anxiety and depression among Saudi dialysis patients in Makkah. A cross-sectional study of anxiety and depression among end-stage renal disease (ESRD) patients in Makkah was conducted in November 2011. The Hospital Anxiety and Depression Scale (HADS) was used to screen for anxiety and depression. Participants’ demographic data, possible stressors and past psychiatric history were obtained. All participants were Saudi ESRD patients on maintenance hemodialysis. According to HADS, 57 (21.1%) patients were probable cases of anxiety and 63 (23.3%) were probable cases of depression. Only 32 (11.3%) were diagnosed with depression or anxiety before ESRD onset. Age was a significant predictor of anxiety and depression diagnoses. Major family problems (p?=?0.001) were also a significant predictor of anxiety. Anxiety and depressive symptoms are prevalent among ESRD patients in Makkah, and anxiety can be predicted by family factors. Early detection, management and family support might improve clinical outcomes. 相似文献
904.
Naibijiang Maolakuerban Baihetiya Azhati Hamulati Tusong Asimujiang Abula Anniwaer Yasheng 《Cancer biology & therapy》2018,19(4):282-291
In this study, we investigated the mechanism of miR-200c-3p and SLC6A1 in regulating cell activity of clear cell renal cell carcinoma (CCRCC). The mRNA and miRNA expressions of tissue specimens were analyzed by CapitalBio Corporation (Beijing, China). The expression of SLC6A1 in CCRCC cells was examined through qRT-PCR and western blot. The migration and invasion ability of 786-O cells was testified by transwell assay after transfected. 786-O cell proliferation ability was detected by MTT assay. Dual luciferase reporter assay verified the association between SLC6A1 and miR-200c-3p. SLC6A1 was high expressed and miR-200c-3p was low expressed in CCRCC tissues and cells. Besides, lower SLC6A1 expression indicated longer survival time and higher survival rate. MiR-200c-3p could directly target at SLC6A1 and reduce its expression. MiR-200c-3p inhibited the proliferation, migration and invasion in 786-O cells by down-regulating SLC6A1 expression. The results suggested that the miR-200c-3p served as a suppressor for CCRCC via down-regulating SLC6A1. 相似文献
905.
目的研究慢性肾功能不全患者肾性骨病应用骨化三醇治疗的临床疗效,并分析其安全性。方法选择2014年7月~2016年11月期间所收治的68例肾性骨病患者作为本次研究病例,对患者进行分组治疗,采用随机数字表法进行分组,对照组和研究组各34例,对照组患者应用常规治疗方法,研究组在此基础上加用骨化三醇治疗,对比分析两组患者的临床各项指标,并分析其不良反应发生情况。结果治疗前,两组临床指标无明显统计学意义(P0.05),经治疗后,研究组患者的血清钙水平为(2.31±0.15)mmol/L,血清无机磷水平为(1.89±0.14)mmol/L,甲状旁腺激素为(202.01±35.87)pg/m L,碱性磷酸酶为(80.46±2.85)U/L,其中血清钙、血清无机磷与甲状旁腺激素水平与对照组比较具有统计学意义(t=4.1607、3.1260、5.7254,P0.05),碱性磷酸酶与治疗前比较无统计学意义(t=1.3055,P0.05);研究组患者不良反应发生率为8.82%(3例),对照组患者不良反应发生率为14.71%(5例),两组患者不良反应比较无统计学意义(χ~2=0.5667,P0.05)。结论慢性肾功能不全患者肾性骨病中应用骨化三醇治疗的效果明显,能够有效改善患者的临床症状,改善钙磷紊乱情况,并且不良反应少,可以在临床中推广使用。 相似文献
906.
907.
908.
Ping Yuan Qipeng Sun Hao Liang Wenjun Wang Ling Li Ye Wang 《Cancer biology & therapy》2016,17(6):599-603
Von Hippel–Lindau (VHL) disease is a rare autosomal dominant inherited cancer syndrome that is characterized by hemangioblastomas in the central nervous system and retina, renal cell carcinoma and cysts, pancreatic tumors and cysts, and pheochromocytoma. The underlying gene in this disease is the VHL tumor suppressor gene. We characterized a family with 2 affected siblings. The brother and sister displayed VHL type 2B and type 2A features, respectively. Renal lesions in the brother exhibited 3 different phenotypes, including simple renal cysts, multilocular cystic renal cell carcinoma and clear cell renal cell carcinoma. The phenotypes of the 3 concurrent renal lesions were first reported in this study. Mutation detection of the VHL gene revealed 2 recurrent mutations, namely c.256C>T (p.P86S) and c.340 + 5G > C. The former was predicted to be deleterious and to destabilize the hydrophobic core and lead to VHL dysfunction; however, the latter was predicted to be a benign variant. Our findings provided new data for the genotype-phenotype of VHL diseases and elucidated the pathogenic mechanism with in silico analysis. 相似文献
909.
Bruno D. Fornage 《The oncologist》2014,19(1):5-15
At The University of Texas MD Anderson Cancer Center, we have used sonography (US) extensively for more than 2 decades to refine the local and regional staging of invasive breast cancer. Although magnetic resonance imaging is superior to all other imaging modalities in the measurement of the primary tumor and detection of additional foci of malignancy, in our experience US has shown sufficient accuracy in clinical practice to stage most invasive breast cancers. The exceptions are ill‐defined tumors such as invasive lobular cancers and tumors in breasts containing extensive diffuse benign disease. An advantage of US is that multifocality or multicentricity can be confirmed via US‐guided fine‐needle aspiration within 15 minutes and the information shared immediately with the patient and the breast surgeon or medical oncologist. US has also proved indispensable in the evaluation of lymphatic spread because it can evaluate more nodal basins (e.g., the supraclavicular fossa and low neck) than magnetic resonance imaging can and because it can guide needle biopsy to confirm the status of any indeterminate node (including internal mammary nodes) within minutes. 相似文献
910.
BackgroundHistological status of axillary lymph nodes is an important prognostic factor in patients receiving surgery for breast cancer (BC). Sentinel lymph node (SLN) biopsy (B) has rapidly replaced axillary lymph node dissection (ALND), and is now the standard of care for axillary staging in patients with clinically node-negative (N0) operable BC. The aim of this study is to compare pretreatment lymphoscintigraphy with a post primary systemic treatment (PST) scan in order to reduce the false-negative rates for SLNB.MethodsIn this single-institution study we considered 170 consecutive T2-4 N0-1 M0 BC patients treated with anthracycline-based PST. At the time of incisional biopsy, we performed sentinel lymphatic mapping. After PST, all patients repeated lymphoscintigraphy with the same methodology. During definitive surgery we performed further sentinel lymphatic mapping, SLNB and ALND.ResultsThe SLN was removed in 158/170 patients giving an identification rate of 92.9% (95% confidence interval (CI) = 88.0–96.3%) and a false-negative rate of 14.0% (95% CI = 6.3–25.8%). SLNB revealed a sensitivity of 86.0% (95% CI = 74.2–93.7%), an accuracy of 94.9% (95% CI = 90.3–97.8%) and a negative predictive value of 92.7% (95% CI = 86.1–96.8%).ConclusionIdentification rate, sensitivity and accuracy are in accordance with other studies on SLNB after PST, even after clinically negative node conversion following PST. This study confirms that diagnostic biopsy and neoadjuvant chemotherapy maintain breast lymphatic drainage unaltered. 相似文献