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https://www.readbyqxmd.com/read/29782965/membrane-cholesterol-delays-cellular-apoptosis-induced-by-ginsenoside-rh2-a-steroid-saponin
#1
Sandrine L Verstraeten, Marie Albert, Adrien Paquot, Giulio G Muccioli, Donatienne Tyteca, Marie-Paule Mingeot-Leclercq
Saponins exhibit several biological and pharmacological activities, such as antibacterial, anti-inflammatory and anticancer effects. Many studies attribute their activities to their interactions with cholesterol. In this study, we focus on the steroid saponin ginsenoside Rh2, one of the active principles of Panax ginseng root. Some evidence suggests that lipid rafts, defined as nanodomains enriched in cholesterol and sphingolipids, could be involved in the Rh2-induced apoptosis. However, the role of membrane lipids, especially cholesterol, in this process is still poorly understood...
May 18, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29778400/stromal-heterogeneity-in-pancreatic-cancer-and-chronic-pancreatitis
#2
Lena Haeberle, Katja Steiger, Anna Melissa Schlitter, Sami Alexander Safi, Wolfram Trudo Knoefel, Mert Erkan, Irene Esposito
BACKGROUND/OBJECTIVES: An abundant stromal reaction is a hallmark of pancreatic ductal adenocarcinoma (PDAC) and chronic pancreatitis (CP). The cells mainly responsible for the stromal reaction are activated pancreatic stellate cells (PSCs). Despite their crucial role, PSCs are not well characterized. PSCs share characteristics with the better-known hepatic stellate cells (HSCs). The aim of this study was a detailed analysis of PSCs in PDAC and CP. METHODS: Whole-slide specimens of CP (n = 12) and PDAC (n = 10) were studied by histochemistry and immunohistochemistry...
May 12, 2018: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29777547/tacrolimus-induced-asymptomatic-thrombotic-microangiopathy-diagnosed-by-laboratory-tests-in-pig-to-rhesus-corneal-xenotransplantation-a-case-report
#3
Jong-Min Kim, Jaeyoung Kim, Se-Hyun Choi, Jun-Seop Shin, Byoung-Hoon Min, Won Young Jeong, Ga-Eul Lee, Min-Sun Kim, Seeun Kwon, Mee Kum Kim, Chung-Gyu Park
Tacrolimus-associated thrombotic microangiopathy (TA-TMA) is a rare complication. TA-TMA is characterized by microangiopathic hemolytic anemia, thrombocytopenia, and organ damage due to thrombus. We report asymptomatic TA-TMA diagnosed by laboratory tests in pig-to-rhesus corneal xenotransplantation. Corneal transplantation had been conducted from a wild-type SNU miniature pig to a rhesus macaque. The veterinary records were retrospectively reviewed in this case. The immunosuppressive regimen consisted of rituximab, basiliximab, and IVIg as inductive therapies, and steroids with tacrolimus (0...
May 18, 2018: Xenotransplantation
https://www.readbyqxmd.com/read/29771085/-expression-patterns-and-prognostic-values-of-nrf2-and-keap1-in-nasopharyngeal-carcinoma
#4
X K Ma, J S Liu
Objective: To investigate the expression of Nrf2 and Keap1 in nasopharyngeal carcinoma (NPC) and to analyze the relationship between the expression of Nrf2 and Keap1 and the clinicopathological features and prognosis of patients with nasopharyngeal carcinoma. Method: A total of 108 patients with biopsy-proven nonkeratinizing squamous cell carcinoma-undifferentiated type with available biopsy specimens for tissue microarray (TMA) construction were selected. The relationship between Nrf2 and Keap1 protein expression and the prognosis of radiotherapy in patients with nasopharyngeal carcinoma was analyzed...
May 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29770955/laptm4b-gene-copy-number-gain-is-associated-with-inferior-response-to-anthracycline-based-chemotherapy-in-hormone-receptor-negative-breast-carcinomas
#5
Orsolya Rusz, Orsolya Papp, Laura Vízkeleti, Béla Ákos Molnár, Kristóf Csaba Bende, Gábor Lotz, Balázs Ács, Zsuzsanna Kahán, Tamás Székely, Ágnes Báthori, Csilla Szundi, Janina Kulka, Zoltán Szállási, Anna-Mária Tőkés
PURPOSE: To determine the associations between lysosomal-associated transmembrane protein 4b (LAPTM4B) gene copy number and response to different chemotherapy regimens in hormone receptor negative (HR-) primary breast carcinomas. PATIENTS AND METHODS: Two cohorts were analyzed: (1) 69 core biopsies from HR-breast carcinomas treated with neoadjuvant chemotherapy (anthracycline based in 72.5% of patients and non-anthracycline based in 27.5% of patients). (2) Tissue microarray (TMA) of 74 HR-breast carcinomas treated with adjuvant therapy (77...
May 16, 2018: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29766468/gemcitabine-induced-thrombotic-microangiopathy-with-nephrotic-syndrome
#6
Daisuke Katagiri, Fumihiko Hinoshita
We encountered a case of gemcitabine (GEM)-induced secondary thrombotic microangiopathy (TMA) with nephrotic syndrome. Advanced pancreatic cancer with liver metastasis had originally been diagnosed. Renal biopsy showed focal reduplication of the glomerular basement membrane, endothelial cell swelling, and narrowed capillary lumens with fragmented erythrocytes and fibrin deposition, compatible with TMA. Regular monitoring of renal function during GEM treatment and discontinuation of treatment if acute kidney injury (AKI) might occur is crucial, because AKI combined with TMA is life-threatening...
May 15, 2018: CEN Case Reports
https://www.readbyqxmd.com/read/29761525/ets2-is-a-prostate-basal-cell-marker-and-is-highly-expressed-in-prostate-cancers-aberrantly-expressing-p63
#7
Alba Torres, Mohammed Alshalalfa, Elai Davicioni, Anuj Gupta, Srinivasan Yegnasubramanian, Sarah J Wheelan, Jonathan I Epstein, Angelo M De Marzo, Tamara L Lotan
BACKGROUND: Rare prostate carcinomas aberrantly express p63 and have an immunophenotype intermediate between basal and luminal cells. Here, we performed gene expression profiling on p63-expressing prostatic carcinomas and compared them to usual-type adenocarcinoma. We identify ETS2 as highly expressed in p63-expressing prostatic carcinomas and benign prostate basal cells, with lower expression in luminal cells and primary usual-type adenocarcinomas. METHODS: A total of 8 p63-expressing prostate carcinomas at radical prostatectomy were compared to 358 usual-type adenocarcinomas by gene expression profiling performed on formalin fixed paraffin embedded tumor tissue using Affymetrix 1...
May 15, 2018: Prostate
https://www.readbyqxmd.com/read/29758394/impact-of-thrombotic-microangiopathy-on-renal-outcomes-and-survival-after-hematopoietic-stem-cell-transplantation
#8
Merve Postalcioglu, Haesook T Kim, Faruk Obut, Osman Arif Yilmam, Jiqiao Yang, Benjamin C Byun, Sophie Kupiec-Weglinski, Robert Soiffer, Jerome Ritz, Joseph H Antin, Edwin Alyea, John Koreth, Corey Cutler, Philippe Armand, Julie M Paik, David E Leaf, Vincent T Ho, Reza Abdi
Transplantation-associated thrombotic microangiopathy (TA-TMA) is a serious complication of hematopoietic stem cell transplantation (HSCT). We characterized the incidence, risk factors, and long-term outcomes associated with TA-TMA by performing a comprehensive review of all adult patients (n=1,990) undergoing allogeneic HSCT at the Dana Farber Cancer Institute/Brigham and Women's Hospital between 2005 and 2013. Using the City of Hope criteria, we identified 258 (13%) and 508 (26%) patients with "definite" and "probable" TMA, respectively...
May 11, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29755817/comparison-of-electrocoagulation-and-conventional-medical-drops-for-treatment-of-conjunctivochalasis-short-term-results
#9
Mehtap Çağlayan, Pınar Kösekahya, Canan Gürdal, Özge Saraç
Objectives: To compare the effectiveness of electrocoagulation and conventional medical drops for treatment of conjunctivochalasis using anterior segment-optical coherence tomography (AS-OCT). Materials and Methods: Forty eyes of 20 patients with bilateral conjunctivochalasis were included in this prospective study. Twenty eyes of 10 patients were assigned to Group 1 and underwent electrocoagulation. The other 20 eyes of 10 patients were assigned to Group 2 and received conventional medical treatment consisting of non-steroidal antiinflammatory drop (topical 0...
April 2018: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/29753747/hoxc10-promotes-gastric-cancer-cell-invasion-and-migration-via-regulation-of-the-nf-%C3%AE%C2%BAb-pathway
#10
Sheng Yao, Longjun He, Yi Zhang, Liping Ye, Yingrong Lai, Linlin Huang, Ling Wu, Guojun Wu, Senlin Zhu
Homeobox gene C10 (HOXC10), known to regulate cell differentiation and proliferation, is upregulated in gastric cancer (GC). The mechanism underlying HOXC10 involvement in GC metastasis is unclear. Herein, we found that HOXC10 is overexpressed in GC relative to normal controls. In the 73 GC patients tissue microarrays (TMA) tested, HOXC10 expression was closely related with tumor-node-metastasis (TNM) stage, lymph node metastasis, and distant metastasis. HOXC10 overexpression tended to associate with low 5-year cumulative survival...
May 10, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29753458/gastric-parietal-cell-and-thyroid-autoantibodies-in-recurrent-aphthous-stomatitis-patients-with-concomitant-oral-lichen-planus
#11
Yang-Che Wu, Julia Yu-Fong Chang, Yi-Ping Wang, Yu-Hsueh Wu, Hsin-Ming Chen, Andy Sun
BACKGROUND/PURPOSE: Gastric parietal cell antibody (GPCA), thyroglobulin antibody (TGA), and thyroid microsomal antibody (TMA) have not yet been reported in recurrent aphthous stomatitis (RAS) patients with concomitant oral lichen planus (OLP/RAS patients). This study mainly assessed the frequencies of serum GPCA, TGA, and TMA (GPCA/TGA/TMA) positivities in 44 OLP/RAS patients. METHODS: The frequencies of serum GPCA/TGA/TMA positivities in 44 OLP/RAS patients, OLP/RAS patients of four different subgroups, 520 RAS patients, and 352 healthy control subjects were calculated and compared...
May 9, 2018: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/29753419/severe-renal-failure-and-thrombotic-microangiopathy-induced-by-malignant-hypertension-successfully-treated-with-spironolactone
#12
H M Villafuerte Ledesma, J M Peña Porta, P Iñigo Gil, P Martin Azara, J E Ruiz Lalglesia, A Tomás LaTorre, A Martínez Burillo, P Vernet Perna, R Álvarez Lipe
Malignant hypertension can cause thrombotic microangiopathy (TMA) characterized by hemolytic anemia and thrombocytopenia. On the other hand, severe hypertension is sometimes associated with hemolytic uremic syndrome (HUS) or thrombotic thrombocytopenic purpura (TTP). Distinguishing these entities is important because of therapeutic implications. Plasmapheresis should be initiated as soon as possible if we are dealing with TTP. We describe the case of a 30-year-old man referred to our hospital with malignant hypertension, severe renal failure and TMA: haemoglobin=9g/dL, total bilirubin=0...
May 9, 2018: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/29748768/microvessel-density-in-head-and-neck-squamous-cell-carcinoma
#13
Tomasz Szafarowski, Janusz Sierdzinski, Miroslaw J Szczepanski, Theresa L Whiteside, Nils Ludwig, Antoni Krzeski
PURPOSE: Microvessel density (MVD) corresponds to the intensity of neo-angiogenesis. MVD assessments are based on the expression levels of the vascular endothelium markers such as, e.g., CD34 or CD105. The goal of this study was to assess MVD among patients with head and neck squamous cell carcinoma (HNSCC), and to evaluate the predictive value of MVD in head and neck cancers. METHODS: The study included 49 patients treated for HNSCC and 11 patients with dysplasia of the upper respiratory tract epithelium...
May 10, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29743427/detection-of-trimethylamine-based-on-a-manganese-tetraphenylporphyrin-optical-waveguide-sensing-element
#14
Jiaming Wang, Patima Nizamidin, Yuan Zhang, Nuerguli Kari, Abliz Yimit
The sensitive detection of trimethylamine has been accomplished by using a homogeneous optical waveguide sensor system. Also the sensor can be easily fabricated by using tetraphenylporphyrin manganese (MnTPP) as sensitive materials to detect different volatile organic compounds (VOC). NMR (1 H-NMR), field-emission scanning electron microscopy (FESEM), and X-ray photoelectron spectroscopy (XPS), infrared (IR), and ultraviolet-visible (UV-vis) instrumental means were used to characterize its structure. Gas-sensing measurements indicated that the sensing element has shown good selectivity, high sensitivity and a low detection limit level of 0...
2018: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/29743397/-transplantation-associated-thrombotic-microangiopathy-confirmed-by-renal-biopsy
#15
Satoshi Miyamoto, Shunsuke Kimura, Yosuke Hosoya, Daisuke Hasegawa, Hisashi Ishida, Atsuro Daida, Toshihiro Matsui, Yuri Yoshimoto, Shinsuke Hirabayashi, Takuya Fujimaru, Tadashi Kumamoto, Shin-Ichiro Mori, Koyu Suzuki, Atsushi Manabe
An eight-year-old girl with myelodysplastic syndrome (refractory cytopenia) received a bone marrow transplant (BMT) from an unrelated donor because of immunosuppressive therapy failure. Following administration of foscarnet for cytomegalovirus reactivation at day40 post-BMT, serum creatinine increased, and proteinuria, hematuria, and hypertension gradually exacerbated and became prolonged. However, neither schistocytosis nor other organ damage was evident. At six months post-BMT, renal biopsy revealed diffuse glomerular damage with glomerular lobulation, a double contour of the glomerular basement membrane, erythrocyte congestion and thrombi in the glomerular endocapillaries, and mesangiolysis, confirming the diagnosis of transplantation-associated thrombotic microangiopathy (TA-TMA)...
2018: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/29742375/investigational-testing-for-zika-virus-among-u-s-blood-donors
#16
MULTICENTER STUDY
Paula Saá, Melanie Proctor, Gregory Foster, David Krysztof, Colleen Winton, Jeffrey M Linnen, Kui Gao, Jaye P Brodsky, Ronald J Limberger, Roger Y Dodd, Susan L Stramer
BACKGROUND: Because of the potential severe clinical consequences of Zika virus (ZIKV) infection, the large numbers of asymptomatic travelers returning from ZIKV-active areas, the detection of ZIKV nucleic acid in blood, and reports of transmission of ZIKV through transfusion, in 2016 the Food and Drug Administration released recommendations for individual-unit nucleic acid testing to minimize the risk of transmission of ZIKV through blood transfusions. METHODS: The American Red Cross implemented investigational screening of donated blood for ZIKV RNA by means of transcription-mediated amplification (TMA)...
May 10, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29739088/thrombotic-microangiopathy-like-hemolysis-in-vitamin-b12-deficiency-related-macrocytic-anemia
#17
Masayoshi Yamanishi, Shigeru Koba, Takaaki Jo, Tohru Kotera, Shinsaku Imashuku
BACKGROUND: Hemolytic features in patients with pernicious anemia have not been emphasized. METHODS: Seven Japanese patients at 60 - 88 years of age with vitamin B12 deficiency-related hemolytic anemia were assessed. RESULTS: Serum vitamin B12 levels in these cases were 46 - 89 pg/mL (normal reference range: 233 - 914 pg/mL). Clinically, the patients presented with thrombotic microangiopathy (TMA)-like hemolytic features (including macrocytic anemia, schistocytes on blood smears, high serum lactate dehydrogenase, hyperbilirubinemia, and low serum haptoglobin)...
April 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29732228/de-novo-atypical-haemolytic-uremic-syndrome-after-kidney-transplantation
#18
Arnaud Devresse, Martine de Meyer, Selda Aydin, Karin Dahan, Nada Kanaan
De novo thrombotic microangiopathy (TMA) can occur after kidney transplantation. An abnormality of the alternative pathway of complement must be suspected and searched for, even in presence of a secondary cause. We report the case of a 23-year-old female patient who was transplanted with a kidney from her mother for end-stage renal disease secondary to Hinman syndrome. Early after transplantation, she presented with 2 episodes of severe pyelonephritis, associated with acute kidney dysfunction and biological and histological features of TMA...
2018: Case Reports in Nephrology
https://www.readbyqxmd.com/read/29731903/overexpression-of-mmp21-and-mmp28-is-associated-with-gastric-cancer-progression-and-poor-prognosis
#19
Jizhen Zhang, Qi Pan, Wenhui Yan, Yiru Wang, Xujun He, Zhongsheng Zhao
Matrix metalloproteinase (MMP)-21 and MMP-28, or epilysin, are overexpressed during the invasion and metastasis of solid tumors. The present study investigated MMP-21 and MMP-28 expression levels in human gastric cancer using tissue microarray (TMA) analysis, and determined their association with clinicopathological characteristics and patient prognosis. TMA blocks, including 436 cases of gastric cancer and 92 non-cancerous adjacent gastric tissues, were investigated using immunohistochemistry. Staining results were analyzed statistically in association with various clinicopathological characteristics and overall survival...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29730854/renal-involvement-in-antiphospholipid-syndrome
#20
REVIEW
Francisco Vileimar Andrade de Azevedo, Diego Germano Maia, Jozelio Freire de Carvalho, Carlos Ewerton Maia Rodrigues
This is a review of scientific publications on renal involvement in antiphospholipid syndrome (APS), with focus on clinical and histopathological findings and treatment. A search for English-language articles on renal involvement in APS covering the period 1980-2017 was conducted in Medline/PubMed and Scopus databases using the MeSH terms "antiphospholipid syndrome", "antiphospholipid antibodies", "glomerulonephritis" and "thrombotic microangiopathy" (TMA). APS nephropathy is primarily the result of thromboses in renal arteries or veins, intraparenchymatous arteries and glomerular capillaries...
May 5, 2018: Rheumatology International
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