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https://www.readbyqxmd.com/read/28527251/-pathological-findings-in-patients-with-hiv-infection-and-lymphadenopathies
#1
Federico Rodríguez-Vega, Miguel Botero, Jorge Alberto Cortés, Ángela Tobón
INTRODUCTION: Lymphadenopathy is a frequent clinical finding in HIV-infected patients. The differential diagnosis includes infection, malignancy or reactive changes. Currently, there are no data on this topic in the region. OBJECTIVES: To describe the etiology of lymph node pathology in HIV-infected patients from the Hospital La María in Medellín, Colombia. MATERIALS AND METHODS: The medical records of HIV-infected patients with lymphadenopathy who underwent excisional lymph node biopsy between June 2009 and October 2011 were retrospectively evaluated...
January 24, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28526855/gut-homeostasis-and-regulatory-t-cell-induction-depend-on-molecular-chaperone-gp96-in-cd11c-cells
#2
Yunpeng Hua, Yi Yang, Shaoli Sun, Stephen Iwanowycz, Caroline Westwater, Boris Reizis, Zihai Li, Bei Liu
The intestinal immunity and tolerance are orchestrated by both the innate and the adaptive immune system. Intestinal professional antigen presenting cells (pAPCs) recognize and respond to the gut microbiota through multiple pattern-recognition receptors, including TLRs and NLRs. How gut pAPCs maintain mucosal homeostasis remains incompletely understood. Heat shock protein gp96, also known as grp94, is an essential immune chaperone for TLRs. However, the role of gp96 in regulating CD11c(+) APCs in the gut immunity and tolerance is unknown...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526622/9-cis-retinoic-acid-modulates-the-type-i-allergic-immune-response
#3
Guido Heine, Tim Hollstein, Sandra Treptow, Andreas Radbruch, Margitta Worm
BACKGROUND: Vitamin A is a potent regulator of adaptive immunity. The impact of the endogenous metabolite 9-cis retinoic acid (9cRA) on allergic sensitization is unknown. OBJECTIVE: To investigate whether and to what extent 9cRA modulates the humoral immune response. METHODS: BALB/c mice were sensitized and challenged with ovalbumin (OVA). 9cRA was applied repeatedly together with the antigen. Immunoglobulin production and cellular analysis were performed by ELISA, ELISPOTs and flow-cytometry...
May 16, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28526604/extramural-perineural-invasion-in-pt3-and-pt4-rectal-adenocarcinoma-as-prognostic-factor-after-preoperative-chemoradiotherapy
#4
Leonardo S Lino-Silva, Rosa A Salcedo-Hernández, Alejandro España-Ferrufino, Erika B Ruiz-García, Miguel Ruiz-Campos, Alberto M León-Takahashi, Abelardo Meneses-García
Perineural invasion (PNI) is widely studied in malignant tumors, and its prognostic significance is well demonstrated in the head and neck and prostate carcinomas, but its significance in rectal cancer is controversial. Most studies have focused on evaluating mural PNI (mPNI); however, extramural PNI (ePNI) may influence the prognosis after rectal cancer resection. We evaluated the prognostic value of ePNI compared with mPNI and with non-PNI, in rectal resections after preoperative chemoradiotherapy in 148 patients with pT3 and pT4 rectal carcinomas...
May 16, 2017: Human Pathology
https://www.readbyqxmd.com/read/28526302/an-important-role-of-vegf-c-in-promoting-lymphedema-development
#5
Epameinondas Gousopoulos, Steven T Proulx, Samia B Bachmann, Lothar C Dieterich, Jeannette Scholl, Sinem Karaman, Roberta Bianchi, Michael Detmar
Secondary lymphedema is a common post-cancer treatment complication but the pathomechanisms underlying the disease remain unclear. Using a mouse-tail lymphedema model, we found an increase in local and systemic levels of the lymphangiogenic factor VEGF-C, and identified CD68+ macrophages as a cellular source. Surprisingly, overexpression of VEGF-C in a transgenic mouse model led to aggravation of lymphedema with increased immune cell infiltration and vascular leakage in comparison to wild-type littermates. Conversely, blockage of VEGF-C by overexpression of soluble VEGFR3 reduced edema development, diminishing inflammation and blood vascular leakage...
May 16, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28526299/mir-200a-regulates-cdk4-6-inhibitor-effect-by-targeting-cdk6-in-metastatic-melanoma
#6
Matias A Bustos, Shigeshi Ono, Diego M Marzese, Takashi Oyama, Yuuki Iida, Garrett Cheung, Nellie Nelson, Sandy C Hsu, Qiang Yu, Dave S B Hoon
Cyclin-dependent kinase (CDK) 4 and 6 pathway is frequently dysregulated in cutaneous melanoma. Recently, CDK4/6 inhibitors have shown promising clinical activity against several cancer types, including melanoma. Here, we demonstrate that miR-200a decreases CDK6 expression and thus reduces the response of CDK4/6 inhibitor in highly proliferative metastatic melanoma. Down-regulation of miR-200a expression in melanoma cells is associated with disease progression and a higher number of lymph node metastases. Furthermore, miR-200a expression is epigenetically modulated by both DNA methylation at the promoter region and chromatin accessibility of an upstream genomic region with enhancer activity...
May 16, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28526193/effects-of-multiple-breath-hold-reproducibility-on-treatment-localization-and-dosimetric-accuracy-in-radiotherapy-of-left-sided-breast-cancer-with-voluntary-deep-inspiration-breath-hold-technique
#7
Mika Kapanen, Marko Laaksomaa, Jani Pehkonen, Mikko Haltamo, Helmi Luukkanen, Turkka Lehtonen, Simo Hyödynmaa, Pirkko-Liisa Kellokumpu-Lehtinen
The purpose of this study was to investigate the effects of breath hold reproducibility on positional and dosimetric errors in radiotherapy of patients with left-sided breast cancer (LSBC) treated with voluntary deep inspiration breath hold (vDIBH) technique. Clinical data from 2 groups of patients with LSBC were retrospectively investigated: (1) those irradiated for the whole breast only (WB group, n = 20) using typically from 3 to 5 breath holds per treatment session and (2) those irradiated simultaneously also for supraclavicular lymph nodes (WB + SLN group, n = 27) using from 7 to 9 breath holds per fraction...
May 16, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28526168/extended-mesometrial-resection-emmr-surgical-approach-to-the-treatment-of-locally-advanced-cervical-cancer-based-on-the-theory-of-ontogenetic-cancer-fields
#8
Benjamin Wolf, Roman Ganzer, Jens-Uwe Stolzenburg, Bettina Hentschel, Lars-Christian Horn, Michael Höckel
BACKGROUND: Based on ontogenetic-anatomic considerations, we have introduced total mesometrial resection (TMMR) and laterally extended endopelvic resection (LEER) as surgical treatments for patients with cancer of the uterine cervix FIGO stages I B1 - IV A. For a subset of patients with locally advanced disease we have sought to develop an operative strategy characterized by the resection of additional tissue at risk for tumor infiltration as compared to TMMR, but less than in LEER, preserving the urinary bladder function...
May 16, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28526077/the-optimal-extent-of-gastrectomy-for-middle-third-gastric-cancer-distal-subtotal-gastrectomy-is-superior-to-total-gastrectomy-in-short-term-effect-without-sacrificing-long-term-survival
#9
Xin Ji, Yan Yan, Zhao-De Bu, Zi-Yu Li, Ai-Wen Wu, Lian-Hai Zhang, Xiao-Jiang Wu, Xiang-Long Zong, Shuang-Xi Li, Fei Shan, Zi-Yu Jia, Jia-Fu Ji
BACKGROUND: The optimal extent of gastrectomy for middle-third gastric cancer remains controversial. In our study, the short-term effects and longer-term survival outcomes of distal subtotal gastrectomy and total gastrectomy are analysed to determine the optimal extent of gastrectomy for middle-third gastric cancer. METHODS: We retrospectively collect and analyse clinicopathologic data and follow-up outcomes from a prospectively collected database at the Peking University Cancer Hospital...
May 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28525664/near-infrared-fluorescence-with-indocyanine-green-for-diagnostics-in-urology-initial-experience
#10
Andrey O Morozov, Yuri G Alyaev, Leonid M Rapoport, Dmitrii G Tsarichenko, Eugene A Bezrukov, Denis V Butnaru, Eugene S Sirota
INTRODUCTION: Fluorescence imaging with indocyanine green is used in urology for the detection of sentinel lymph nodes and identification of prostate margins in radical prostatectomy for delineation of resection zone and selective clamping of vessels in partial nephrectomy; for identification and evaluation of length of ureteral strictures; for assessment of perfusion and viability of anastomoses during reconstructive stage of cystectomy. Safety of this technique is proven, while its diagnostic value and usefulness is still controversial...
May 16, 2017: Urologia
https://www.readbyqxmd.com/read/28525608/surgical-resection-for-advanced-lung-cancer-using-the-hemi-clamshell-approach
#11
Yasushi Shintani, Ryu Kanzaki, Tomohiro Kawamura, Soichiro Funaki, Masato Minami, Meinoshin Okumura, Eiji Okura, Yoshihisa Kadota, Mitsunori Ohta
OBJECTIVES: The hemi-clamshell (HCS) approach consists of partial sternotomy with antero-lateral thoracotomy. This study evaluated the utilities and outcomes of the HCS approach in advanced lung cancer patients. METHODS: We retrospectively investigated 45 patients who underwent surgery for advanced lung cancer via the HCS procedure between 2000 and 2014, the indications for surgery being tumour invasion extending to the aorta arch in 5, descending aorta in 9, main pulmonary artery in 5, superior vena cava in 6, right or left atrium in 4, apical thoracic dome in 7 patients and mediastinal lymphadenopathy for left-sided lung cancer in 12...
May 19, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28525606/wedge-resection-and-lymph-node-dissection%C3%A2
#12
Marc Riquet, Alex Arame, Ciprian Pricopi
No abstract text is available yet for this article.
May 18, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28525495/national-cancer-database-report-of-lymphadenectomy-trends-in-endometrial-cancer
#13
James Cripe, Elizabeth Handorf, Jennifer Brown, Angela Jain, Stephen Rubin, Gina Mantia-Smaldone
OBJECTIVES: Lymph node involvement has a significant impact on prognosis that may direct adjuvant therapy. The role of routine lymph node staging (LNS) is controversial given conflicting results in multiple studies. Our aims are to describe treatment patterns of LNS, identify factors impacting LNS, and quantify the contemporary trends. METHODS/MATERIALS: The National Cancer Data Base was queried for patients undergoing hysterectomy for endometrioid and serous uterine carcinomas from 2003 to 2012...
May 19, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28525461/18f-fdg-pet-ct-of-papillary-carcinoma-in-a-lateral-thyroglossal-duct-cyst
#14
Christos Sachpekidis, Matthias S Dettmer, Sabine Weidner, Roland Giger, Jan Wartenberg
A 69-year-old man presented with bulging of the right oropharyngeal wall, which revealed cytopathologically malignant cells. The man underwent MRI and F-FDG PET/CT, which demonstrated a cystic parapharyngeal lesion with an F-FDG-avid soft tissue component and right cervical lymph node. The patient was operated on and showed thyroid cancer in normal thyroid tissue, compatible with a papillary thyroid carcinoma in a lateral thyroglossal duct cyst and 2 ipsilateral lymph node metastases. Despite its rarity, papillary thyroid carcinoma in a thyroglossal duct cyst should be kept as one of the differential diagnoses in patients presenting with parapharyngeal cystic lesion...
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28525449/spontaneous-recovery-of-rosai-dorfman-disease-on-fdg-pet-ct
#15
Qianqian Xue, Weibing Miao
Rosai-Dorfman disease is a rare systemic proliferative disorder of histiocytes, which mainly manifests as lymphadenopathy but also often involves extranodal tissues. Rosai-Dorfman disease was often self-limited. We hereby report a case of Rosai-Dorfman disease involving both the lymph nodes and the lungs, which was spontaneously resolved on FDG PET/CT.
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28525448/18f-fluorocholine-pet-ct-complementing-the-role-of-dynamic-contrast-enhanced-mri-for-providing-comprehensive-diagnostic-workup-in-prostate-cancer-patients-with-suspected-relapse-following-radical-prostatectomy
#16
Shelvin Kumar Vadi, Baljinder Singh, Rajender K Basher, Ankit Watts, Ashwani K Sood, Anupam Lal, Nandita Kakkar, S K Singh
PURPOSE: The aim of this study was to compare the diagnostic performance of F-fluorocholine (FCH) PET/CT and dynamic contrast-enhanced MRI (DCE-MRI) of pelvis in restaging prostate cancer (PC) patients with biochemical recurrence (BCR) following radical prostatectomy (RP). METHODS: Twenty PC patients who had undergone RP and had BCR were recruited in this study. All the patients underwent whole-body FCH PET/CT and DCE-MRI of the pelvis. An overall pattern of recurrent disease was analyzed, and diagnostic accuracy for the detection of pelvic disease recurrence by the 2 modalities was evaluated by taking histopathologic analysis as the criterion standard...
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28525379/pdz-binding-kinase-regulated-by-foxm1-enhances-malignant-phenotype-via-activation-of-%C3%AE-catenin-signaling-in-hepatocellular-carcinoma
#17
Yu-Feng Yang, Ying-Hua Pan, Yun Cao, Jia Fu, Xia Yang, Mei-Fang Zhang, Qiu-Hong Tian
Deregulation of serine/threonine kinase contributes to the development and progression of human diseases. PDZ-binding kinase (PBK) has been implicated in the malignant process of cancers, but its role and clinical significance in hepatocellular carcinoma (HCC) remains unclear. Here we show that PBK expression is increased and associated with larger tumor size, presence of vascular invasion, lymph node metastasis and poor overall and disease-free survivals in two independent cohorts of 879 patients with HCC...
May 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28524850/a-high-quantum-yield-molecule-protein-complex-fluorophore-for-near-infrared-ii-imaging
#18
Alexander L Antaris, Hao Chen, Shuo Diao, Zhuoran Ma, Zhe Zhang, Shoujun Zhu, Joy Wang, Alexander X Lozano, Quli Fan, Leila Chew, Mark Zhu, Kai Cheng, Xuechuan Hong, Hongjie Dai, Zhen Cheng
Fluorescence imaging in the second near-infrared window (NIR-II) allows visualization of deep anatomical features with an unprecedented degree of clarity. NIR-II fluorophores draw from a broad spectrum of materials spanning semiconducting nanomaterials to organic molecular dyes, yet unfortunately all water-soluble organic molecules with >1,000 nm emission suffer from low quantum yields that have limited temporal resolution and penetration depth. Here, we report tailoring the supramolecular assemblies of protein complexes with a sulfonated NIR-II organic dye (CH-4T) to produce a brilliant 110-fold increase in fluorescence, resulting in the highest quantum yield molecular fluorophore thus far...
May 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28524830/using-ultrasonography-to-evaluate-the-relationship-between-capsular-invasion-or-extracapsular-extension-and-lymph-node-metastasis-in-papillary-thyroid-carcinomas
#19
Wei-Ping Jiao, Lei Zhang
BACKGROUND: Previous studies have demonstrated that ultrasonography is the recommended imaging modality for preoperative staging of papillary thyroid carcinomas (PTCs). However, only a few studies have kept watch on preoperative evaluation of capsular invasion (CI) or extracapsular extension (ECE) and cervical lymph node metastasis using preoperative ultrasonography. This study aimed to investigate the relationship between the CI or ECE and the cervical lymph node metastasis in PTCs using preoperative ultrasonography and postoperative pathology in Chinese patients...
June 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28524782/clinical-prediction-model-and-tool-for-assessing-risk-of-persistent-pain-after-breast-cancer-surgery
#20
Tuomo J Meretoja, Kenneth Geving Andersen, Julie Bruce, Lassi Haasio, Reetta Sipilä, Neil W Scott, Samuli Ripatti, Henrik Kehlet, Eija Kalso
Purpose Persistent pain after breast cancer surgery is a well-recognized problem, with moderate to severe pain affecting 15% to 20% of women at 1 year from surgery. Several risk factors for persistent pain have been recognized, but tools to identify high-risk patients and preventive interventions are missing. The aim was to develop a clinically applicable risk prediction tool. Methods The prediction models were developed and tested using three prospective data sets from Finland (n = 860), Denmark (n = 453), and Scotland (n = 231)...
May 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
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