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Azadeh Aminzadeh, Saeed Mehrzadi
Homocysteine (Hcy) is a major risk factor for vascular disease and is closely associated with endothelial dysfunction. Melatonin is a neurohormone that is mostly produced by the pineal gland. Studies have reported that melatonin exhibits neuroprotective effects in several neurodegenerative disorders. The aim of the current study was to investigate the possible protective effect of melatonin against Hcy-induced endothelial cell apoptosis in human umbilical vein endothelial cells (HUVECs) and to explore the underlying mechanisms...
February 13, 2018: Fundamental & Clinical Pharmacology
Jae-Rim Heo, Geum-A Lee, Gyu-Sik Kim, Kyung-A Hwang, Kyung-Chul Choi
BACKGROUND: Phytochemicals are derived from plants, vegetables and daily products and exert chemopreventive effects. Malignant melanoma is highly metastatic, and melanoma patients can develop chemotherapeutic resistance against conventional melanoma therapies. METHODS: In the present study, we investigated the anti-cancer effect of the phytochemicals kaempferol (Kaem), genistein (Gen), and 3'3-diindolylmethane (DIM) on melanoma cell viability. We also evaluated the altered expression of cell cycle-related genes...
January 15, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
Yvanna Carla S de Salgado, Marianna Boia Ferreira, Jessica Zablocki da Luz, Francisco Filipak Neto, Ciro Alberto de Oliveira Ribeiro
Murine melanoma cells B16F1 were exposed to the flame retardant and wood preservative chemical 2,4,6-tribromophenol (TBP) during 24 and 48 h, at the concentrations found in human diet. TBP-exposed cells had increased MTT and Alamar blue® metabolism and ABCB5 mRNA levels (qPCR), but the cells had decreased proliferation (crystal violet assay), migration (scratch assay), and drug-effux transporters activity (rhodamine B efflux assay). Exposure to TBP did not affect the cell viability (neutral red and annexin V-PI assays), colony formation (colony number, clonogenic assay), and the levels of reactive oxygen species (DCF probe) or P53 mRNA (qPCR)...
February 7, 2018: Toxicology in Vitro: An International Journal Published in Association with BIBRA
Hyun-Ki Cho, Chang-Gyun Park, Han-Jae Shin, Ki-Hong Park, Heung-Bin Lim
Ultrafine particles (UFPs, < 2.5 µm) in air pollutants have been identified as a major cause of respiratory diseases, since they can affect the lung alveoli through the bronchus. In particular, if toxicants such as heavy metals and polycyclic aromatic hydrocarbons (PAHs) are present in UFPs, they can cause diseases such as asthma, chronic obstructive pulmonary disease, and lung cancer. This study compared in vitro toxicity of various particulate matter including UFPs from combustion particles of diesel (diesel exhaust particles (DEP)), rice straw (RS), pine stem (PS) and coal (CC), and road dust particles from tunnel (TD) and roadside (RD)...
January 1, 2018: Toxicology and Industrial Health
Jiawei Hu, Jianwei Zhao, Dongbo Wang, Xiaoming Li, Dan Zhang, Qiuxiang Xu, Lai Peng, Qi Yang, Guangming Zeng
In this study, the impact of diclofenac (DCF), an antiinflammatory drug being extensively used in human health care and veterinary treatment, on the production of volatile fatty acids (VFAs) from anaerobic fermentation of waste activated sludge (WAS) was investigated for the first time. Experimental results showed that when DCF concentration increased from 2.5 to 25 mg/kg total suspended solid (TSS), the maximum production of VFAs increased from 599 to 1113 mg COD/L, but further increase of DCF to 47...
January 13, 2018: Bioresource Technology
Aziz Zaanan, Emmanuelle Samalin, Thomas Aparicio, Olivier Bouche, Pierre Laurent-Puig, Sylvain Manfredi, Pierre Michel, Carole Monterymard, Marie Moreau, Philippe Rougier, David Tougeron, Julien Taieb, Christophe Louvet
INTRODUCTION: In advanced gastric cancer, doublet regimen including platinum salts and fluoropyrimidine is considered as a standard first-line treatment. The addition of docetaxel (75 mg/m 2 q3w) to cisplatin (75 mg/m 2 q3w) and 5-fluorouracil has been shown to improve efficacy. However, this regimen (DCF) was associated with frequent severe toxicities (including more complicated neutropenia), limiting its use in clinical practice. Interesting alternative docetaxel-based regimens have been developed that need to be validated...
February 3, 2018: Digestive and Liver Disease
Dimitri Theuerkauff, Georgina A Rivera-Ingraham, Yann Mercky, Mathilde Lejeune, Jehan-Hervé Lignot, Elliott Sucré
Mangroves are increasingly used as biofiltering systems of (pre-treated) domestic effluents. However, these wastewater discharges may affect local macrofauna. This laboratory study investigates the effects of wastewater exposure on the mangrove spider crab Neosarmatium meinerti, a key engineering species which is known to be affected by waste waters in effluent-impacted areas. These effects were quantified by monitoring biological markers of physiological state, namely oxygen consumption, the branchial cavity ventilation rate, gill physiology and morphology, and osmoregulatory and redox balance...
January 6, 2018: Aquatic Toxicology
Irina S Moreira, Vânia S Bessa, Sapia Murgolo, Clara Piccirillo, Giuseppe Mascolo, Paula M L Castro
Diclofenac (DCF) is a widely used non-steroidal anti-inflammatory pharmaceutical which is detected in the environment at concentrations which can pose a threat to living organisms. In this study, biodegradation of DCF was assessed using the bacterial strain Labrys portucalensis F11. Biotransformation of 70% of DCF (1.7-34 μM), supplied as the sole carbon source, was achieved in 30 days. Complete degradation was reached via co-metabolism with acetate, over a period of 6 days for 1.7 µM and 25 days for 34 μM of DCF...
January 26, 2018: Ecotoxicology and Environmental Safety
David Griswold, Ken Learman, Morey J Kolber, Bryan O'Halloran, Joshua A Cleland
Study Design Randomized clinical trial. Background The comparative effectiveness between non-thrust (NTM) and thrust manipulation (TM) for mechanical neck pain has been investigated with inconsistent results. Objective To compare the clinical effectiveness of concordant cervical and thoracic NTM and TM for patients with mechanical neck pain. Methods The Neck Disability Index (NDI) was the primary outcome. Secondary outcomes included the Patient Specific Functional Scale (PSFS), Numerical Pain Rating Scale (NPRS), deep cervical flexion endurance (DCF), Global Rating of Change (GROC), number of visits, and duration of care...
February 6, 2018: Journal of Orthopaedic and Sports Physical Therapy
Miao Sun, Gao Si, Hai-Shen Sun, Fu-Chun Si
CREPT (cell-cycle related and expression-elevated protein in tumor) was reported to be associated with growth of several human cancers; however, its clinical significance and regulatory mechanism still remain unclear in human gastric cancer. In the present study, we found CREPT was significantly increased in gastric cancer tissues compared to the matched adjacent normal tissues. CREPT silence inhibited the proliferation of gastric cancer cells through inducing G0/G1 phase cell cycle arrest, which was linked to the reduction of Cyclin D1 and Cyclin D-dependent kinase 4 (CDK4), and the elevation of p53 and p21...
January 31, 2018: Biochemical and Biophysical Research Communications
Stephan Schmidt, Holger Hoffmann, Leif-Alexander Garbe, Rudolf J Schneider
A frequently studied environmental contaminant is the active substance diclofenac, which is removed insufficiently in sewage treatment plants. Since its inclusion in the watch list of the EU Water Framework Directive, the concentrations in surface waters will be determined throughout Europe. For this, still, more precise analytical methods are needed. As a reference, HPLC-MS is frequently employed. One of the major metabolites is 4'-hydroxydiclofenac (4'-OH-DCF). Also, diclofenac lactam is important for assessing degradation and transformation...
February 2, 2018: Journal of Chromatography. A
Kazuki Odagiri, Makoto Yamazaki, Koji Tanaka, Yasuhiro Miyazaki, Tomoki Makino, Tsuyoshi Takahashi, Yukinori Kurokawa, Kiyokazu Nakajima, Masaki Mori, Yuichiro Doki
INTRODUCTION: Chemoradiotherapy(CRT)is an effective treatment method for esophageal cancer. In early stages, it is a standard therapy combined with surgery. However, CRT achieves definitive complete response(CR)in only about 20% of advanced cancer with invasion into adjacent organs. Then, surgery is the only treatment for curative therapy. We report a case of a patient with 3-year survival who underwent lymphadenectomy for residual cancer after CRT for advanced esophageal cancer with invasion into the trachea and right cervical artery...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Shoichiro Hikami, Atsushi Shiozaki, Hitoshi Fujiwara, Hirotaka Konishi, Tomohiro Arita, Toshiyuki Kosuga, Ryo Morimura, Yasutoshi Murayama, Shuhei Komatsu, Hisashi Ikoma, Yoshiaki Kuriu, Masayoshi Nakanishi, Daisuke Ichikawa, Kazuma Okamoto, Eigo Otsuji
Neoadjuvant chemotherapy(NAC)has been proven to have survival benefit for patients with resectable advanced esophageal squamous cell carcinoma(ESCC). Among a total of 208 patients with ESCC who underwent radical surgery following NAC between March 2000 and January 2017, 6 patients achieved histologically complete response. Before NAC, the average major axis length of the tumor was 57 mm, and the clinical stages were Stage II (2 patients)and Stage III (4 patients). FP therapy(cisplatin and 5-fluorouracil)was administered to 4 patients, and DCF therapy(docetaxel, cisplatin, and 5-fluorouracil) to 2 patients...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Kohei Murakami, Atsushi Takeno, Toru Masuzawa, Shigeyuki Tamura, Kenji Kawai, Takuya Sakamoto, Junichi Inatome, Atsushi Naito, Yoshiteru Katsura, Yoshiaki Ohmura, Yoshinori Kagawa, Chiyomi Egawa, Yutaka Takeda, Kohei Murata
A 66-year-old man reporting chest stenosis was examined. Upper gastrointestinal endoscopy showed type 2 esophageal cancer. An enhanced CT scan showed several swollen lymph nodes in the lesser curvature of the esophagus. We diagnosed the patient as having advanced esophageal cancer with multiple lymph node metastases(cT3N2M0, Stage III ). After 2 courses of chemotherapy(DCF), a significant reduction was observed in the esophageal tumor; however, the tumor at the lesser curvature was almost unchanged. MIBG scintigraphy showed high uptake in the left adrenal gland...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Mitsuru Iwama, Yutaka Kimura, Osamu Shiraishi, Hiroaki Kato, Yoko Hiraki, Yumiko Tanaka, Atsushi Yasuda, Masayuki Shinkai, Motohiro Imano, Haruhiko Imamoto, Takushi Yasuda
Prognosis of locally advanced esophageal cancer is poor. The greatest prognostic factor of locally advanced esophageal cancer is a local control. We experienced a case of T4 locally advanced thoracic esophageal cancer who was successfully resected without any combined resection after multimodality therapy. A male in 75-year-old. was diagnosed with type 3 locally advanced upper thoracic esophageal cancer whose metastatic right recurrent laryngeal lymph node invaded into the trachea. Definitive chemoradiation therapy(CRT)was performed, leading to a significant shrinkage of the main tumor, but T4 lesion remained...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Kazuyuki Okada, Tomohira Takeoka, Hirofumi Miki, Kenji Kobayashi
A 66-year-old man was admitted to our hospital complaining of dysphagia. Endoscopic examination showed type 1 tumor in the middle intrathoracic esophagus. The biopsy specimen showed moderately differentiated squamous cell carcinoma. Abdominal CT scan revealed the swelling of lymph nodes along the celiac artery. We diagnosed unresectable advanced esophageal cancer(cT3N4M0, cStage IV a). Systemic chemotherapy was initiated using a regimen of docetaxel, CDDP, and 5- FU(DCF). Abdominal CT scan indicated regression of the swelling lymph nodes after 3 courses...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Masanobu Nakajima, Hiroto Muroi, Maiko Kikuchi, Masakazu Takahashi, Keisuke Ihara, Yosuke Shida, Eigo Kurayama, Hideo Ogata, Satoru Yamaguchi, Kinro Sasaki, Makoto Sakai, Makoto Sohda, Tatsuya Miyazaki, Hiroyuki Kuwano, Hiroyuki Kato
BACKGROUND/AIM: The purpose of this study was to identify adverse prognostic factors for patients with advanced esophageal cancer undergoing chemotherapy with docetaxel, cisplatin and 5-fluorouracil (DCF). PATIENTS AND METHODS: The study cohort comprised of 45 patients with advanced esophageal cancer who underwent induction DCF therapy followed by esophagectomy or chemoradiotherapy. Treatment outcomes and factors affecting early recurrence and death were analyzed...
February 2018: Anticancer Research
Mayana Karoline Fontes, Paloma Kachel Gusso-Choueri, Luciane Alves Maranho, Denis Moledo de Souza Abessa, Wesley Almeida Mazur, Bruno Galvão de Campos, Luciana Lopes Guimarães, Marcos Sergio de Toledo, Daniel Lebre, Joyce Rodrigues Marques, Andreia Arantes Felicio, Augusto Cesar, Eduardo Alves Almeida, Camilo Dias Seabra Pereira
Pharmaceutical discharges into the aquatic ecosystem are of environmental concern and sewage treatment plants (STPs) have been pointed out as the major source of these compounds to coastal zones, where oceanic disposal of sewage occurs through submarine outfalls. Diclofenac (DCF) is one of the most frequently detected pharmaceuticals in water, but little is known about the effects on marine organisms. In this study, we employed a tiered approach involving the determination of environmental concentrations of DCF in marine water and the adverse biological effects for fertilization, embryo-larval development and biomarker responses of the mussel Perna perna...
December 29, 2017: Water Research
Roberta Bernini, Maurizio Barontini, Valentina Cis, Isabella Carastro, Daniela Tofani, Rosa Anna Chiodo, Paolo Lupattelli, Sandra Incerpi
Polyphenols are natural compounds showing a variety of health-promoting effects. Unfortunately, due to low lipid solubility, their applications in the pharmaceutical, food, and cosmetic industries are limited. With the aim of obtaining novel lipophilic derivatives, the present study reports the synthesis of a series of phenethyl trifluoroacetate esters containing up to two hydroxyl groups in the aromatic ring. Experimental logP values confirmed a greater lipophilicity of the novel compounds compared to the parent compounds...
January 19, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Gianluca Tomasello, Nicola Valeri, Michele Ghidini, Elizabeth C Smyth, Wanda Liguigli, Laura Toppo, Rodolfo Mattioli, Alessandra Curti, Jens C Hahne, Federica M Negri, Stefano Panni, Margherita Ratti, Silvia Lazzarelli, Fabiana Gerevini, Chiara Colombi, Andrea Panni, Massimo Rovatti, Leonardo Treccani, Mario Martinotti, Rodolfo Passalacqua
Background: Survival for patients with advanced gastroesophageal cancer (AGC) using standard treatment regimens is poor. EGFR overexpression is common in AGC and associated with poor prognosis. We hypothesized that increasing the dose intensity of chemotherapy and adding panitumumab could improve efficacy. Methods: HER2 negative, PS 0-1 patients, received up to 4 cycles of panitumumab 6 mg/kg d 1, docetaxel 60 mg/m2 d 1, cisplatin 50 mg/m2 d 1, l-folinic acid 100 mg/m2 d 1-2, followed by 5-FU 400 mg/m2 bolus d 1-2, and then 600 mg/m2 as a 22 h c...
December 19, 2017: Oncotarget
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