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https://www.readbyqxmd.com/read/28535031/tunichrome-inspired-gold-enrichment-dispersion-matrix-and-its-application-in-water-treatment-a-proof-of-concept-investigation
#1
Amarendra Dhar Dwivedi, Rega Permana, Jitendra Pal Singh, Hakwon Yoon, Keun Hwa Chae, Yoon-Seok Chang, Dong Soo Hwang
Tunicate, a filter-feeder in seawater, is able to accumulate high amount of metals using intracellular polymer matrices. The woven pyrogallol structures of tunichrome, a small peptide contained in tunicate's blood cells, is believed to be responsible for selective metal sequestration in tunicates from seawater. However, the intriguing tunichrome matrix is difficult to harvest from the tunicate nor to synthesize massively due to the extreme oxidation sensitivity of the pyrogallol moiety which limits the study scope...
May 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28533939/efficacy-of-peptide-receptor-radionuclide-therapy-with-177-lu-octreotate-in-metastatic-pulmonary-neuroendocrine-tumors-a-dual-centre-analysis
#2
Amir Sabet, Alexander R Haug, Collin Eiden, Christoph J Auernhammer, Birgit Simon, Peter Bartenstein, Hans J Biersack, Samer Ezziddin
There is lack of data on the specific benefit of peptide receptor radionuclide therapy (PRRT) in neuroendocrine tumors (NET) of pulmonary origin. This dual- centre study aimed to assess outcome and toxicity of standardized PRRT with (177)Lu-octreotate in a patient population of advanced pulmonary NET of grade 1-2. We retrospectively assessed 22 consecutively patients treated with 4 intended cycles at 3 monthly intervals (mean activity per cycle 7.8±0.68 GBq). In a median follow-up period of 54 months, no significant nephrotoxicity (≥ grade 3) was observed...
2017: American Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28533888/neuroprotective-effects-of-melatonin-administration-against-chronic-immobilization-stress-in-rats
#3
Asmaa Ms Gomaa, Heba M Galal, Amal T Abou-Elgait
Chronic stress can impair brain functions and play a well-known role in the development of stress-related disorders such as anxiety. Melatonin (Mel) is a neurohormone which regulate several physiological processes including mood and behavior. This experimental study was designed to evaluate the effect of Mel on chronic immobilization stress (CIS) for 6 weeks in rats and to elucidate its possible underlying mechanisms. Twenty-eight adult male Wistar albino rats were divided into four equal groups: the control group, the Mel-treated group which was injected daily with Mel (10 mg/kg/day; IP) for 6 weeks, the stressed group which was subjected to CIS protocol daily for 6 weeks, and the Mel-treated stressed group which was injected with Mel and concurrently exposed to CIS protocol for 6 weeks...
2017: International Journal of Physiology, Pathophysiology and Pharmacology
https://www.readbyqxmd.com/read/28533106/trans-sectoral-care-of-geriatric-cancer-patients-based-on-comprehensive-geriatric-assessment-and-patient-reported-quality-of-life-results-of-a-multicenter-study-to-develop-and-pilot-test-a-patient-centered-interdisciplinary-care-concept-for-geriatric-oncology
#4
Heike Schmidt, Stephanie Boese, Katharina Lampe, Karin Jordan, Eckhard Fiedler, Ursula Müller-Werdan, Andreas Wienke, Dirk Vordermark
OBJECTIVES: For older patients with cancer the maintenance of independence, functionality and health-related quality of life (HRQOL) is of great importance. Aiming to maintain HRQOL of older patients with cancer we developed an interdisciplinary care program based on comprehensive geriatric assessment (CGA) and patient-reported HRQOL comprising tailored supportive measures and telephone-based counseling during 6month aftercare. MATERIALS AND METHODS: Pilot-testing of the intervention took place in three centers at the University Hospital Halle to examine feasibility, acceptance and potential benefit...
May 19, 2017: Journal of Geriatric Oncology
https://www.readbyqxmd.com/read/28523359/arginine-cga-codons-as-a-source-of-nonsense-mutations-a-possible-role-in-multivariant-gene-expression-control-of-mrna-quality-and-aging
#5
Georgy A Romanov, Victor S Sukhoverov
Methylation of cytosine residues in DNA of higher eukaryotes, including humans, creates "hot spots" of C→T transitions in the genome. The predominantly methylated sequence in mammalian DNAs is CG (CpG). Among CG-containing codons, CGA codons for arginine are unique due to their ability to create stop codons TGA (UGA in mRNA) upon epigenetic-mediated mutation. As such nonsense mutations can have a strong adverse effect on the cell and organism, we have performed a study, on the example of human genes, aimed to characterise the anticipated effects of epigenetic-mediated nonsense mutations CGA→TGA in somatic cells...
May 18, 2017: Molecular Genetics and Genomics: MGG
https://www.readbyqxmd.com/read/28501762/poorly-differentiated-gastro-entero-pancreatic-neuroendocrine-carcinomas-are-they-really-heterogeneous-insights-from-the-ffcd-gte-national-cohort
#6
T Walter, D Tougeron, E Baudin, K Le Malicot, T Lecomte, D Malka, O Hentic, S Manfredi, I Bonnet, R Guimbaud, R Coriat, C Lepère, C Desauw, A Thirot-Bidault, L Dahan, G Roquin, T Aparicio, J-L Legoux, C Lombard-Bohas, J-Y Scoazec, C Lepage, G Cadiot
BACKGROUND: Diagnosis and management of poorly differentiated gastro-entero-pancreatic (GEP) neuroendocrine carcinomas (NECs) remain challenging. Recent studies suggest prognostic heterogeneity. We designed within the French Group of Endocrine Tumours a prospective cohort to gain insight in the prognostic stratification and treatment of GEP-NEC. PATIENTS AND METHODS: All patients with a diagnosis of GEP-NEC between 1st January 2010 and 31st December 2013 could be included in this national cohort...
May 11, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28501118/impact-of-chromogranin-a-differentiation-and-mitoses-in-nonfunctional-pancreatic-neuroendocrine-tumors-%C3%A2-2%C3%A2-cm
#7
Katelin A Mirkin, Christopher S Hollenbeak, Joyce Wong
BACKGROUND: Small pancreatic neuroendocrine tumors (PNETs) are a unique subset of pancreatic neoplasms. Chromogranin A (CgA) levels, mitotic rate, and histologic differentiation are often used to characterize PNET behavior. This study evaluates the impact of these factors on survival in patients with PNETs. METHODS: The US National Cancer Data Base (1998-2012) was reviewed for patients with stages I-III, nonfunctional PNETs ≤2 cm. Clinicopathologic characteristics were collected, and univariate and multivariate survival analyses were performed...
May 1, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28499021/protein-only-rnase-p-function-in-escherichia-coli-viability-processing-defects-and-differences-between-prorp-isoenzymes
#8
Markus Gößringer, Marcus Lechner, Nadia Brillante, Christoph Weber, Walter Rossmanith, Roland K Hartmann
The RNase P family comprises structurally diverse endoribonucleases ranging from complex ribonucleoproteins to single polypeptides. We show that the organellar (AtPRORP1) and the two nuclear (AtPRORP2,3) single-polypeptide RNase P isoenzymes from Arabidopsis thaliana confer viability to Escherichia coli cells with a lethal knockdown of its endogenous RNA-based RNase P. RNA-Seq revealed that AtPRORP1, compared with bacterial RNase P or AtPRORP3, cleaves several precursor tRNAs (pre-tRNAs) aberrantly in E. coli...
May 11, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28488442/stable-benzacridine-pigments-by-oxidative-coupling-of-chlorogenic-acid-with-amino-acids-and-proteins-toward-natural-product-based-green-food-coloring
#9
Mariagrazia Iacomino, Fabian Weber, Maike Gleichenhagen, Valeria Pistorio, Lucia Panzella, Elio Pizzo, Andreas Schieber, Marco d'Ischia, Alessandra Napolitano
The occasional greening of sweet potatoes and other plant tissues observed during cooking or other food processing has been shown to arise from the autoxidative coupling of chlorogenic acid (CGA, 5-caffeoylquinic acid) with amino acid components, leading to trihydroxybenzacridine pigments. To explore the potential of this reaction for food coloring, we report herein the optimized biomimetic preparation of trihydroxybenzacridine pigments from CGA and amino acids such as glycine and lysine, their straightforward purification by gel filtration chromatography, the UHPLC-MS/MS analysis of the purified pigment fraction, and a detailed characterization of the pH-dependent trihydroxybenzacridine chromophore...
May 16, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28487465/geriatric-assessment-predicts-survival-and-competing-mortality-in-elderly-patients-with-early-colorectal-cancer-can-it-help-in-adjuvant-therapy-decision-making
#10
Maite Antonio, Juana Saldaña, Alberto Carmona-Bayonas, Valentín Navarro, Cristian Tebé, Marga Nadal, Francesc Formiga, Ramon Salazar, Josep Maria Borràs
BACKGROUND: The challenge when selecting elderly patients with colorectal cancer (CRC) for adjuvant therapy is to estimate the likelihood that death from other causes will preclude cancer events from occurring. The aim of this paper is to evaluate whether comprehensive geriatric assessment (CGA) can predict survival and cancer-specific mortality in elderly CRC patients candidates for adjuvant therapy. MATERIAL AND METHODS: One hundred ninety-five consecutive patients aged ≥75 with high-risk stage II and stage III CRC were prospectively included from May 2008 to May 2015...
May 9, 2017: Oncologist
https://www.readbyqxmd.com/read/28479099/protective-effect-of-chlorogenic-acid-against-methotrexate-induced-oxidative-stress-inflammation-and-apoptosis-in-rat-liver-an-experimental-approach
#11
Nemat Ali, Summya Rashid, Sana Nafees, Syed Kazim Hasan, Ayaz Shahid, Ferial Majed, Sarwat Sultana
Methotrexate (MTX) is a drug which is used to treat different types of cancers but hepatotoxicity limits its clinical use. Chlorogenic acid (CGA) is one of the most abundant naturally occurring polyphenols in the human diet. Here, we assessed the effect of CGA against MTX-induced hepatotoxicity and investigated the underlying possible mechanisms in Wistar Rats. Rats were pre-treated with CGA (50 or 100 mg kg/b.w) and administered a single dose of MTX (20 mg/kg, b.w.). MTX caused hepatotoxicity as evidenced by significant increase in serum toxicity markers, histopathological changes...
May 4, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28464233/incidence-and-prognostic-value-of-serotonin-secretion-in-pancreatic-neuroendocrine-tumours
#12
Wouter T Zandee, Roxanne C S van Adrichem, Kimberly Kamp, Richard A Feelders, Marie-Louise F van Velthuysen, Wouter W de Herder
BACKGROUND: Serotonin secretion occurs in approximately 1-4% of patients with a pancreatic neuroendocrine tumour (PNET), but the incidence is not well defined. The aim of this study is to determine the incidence of serotonin secretion with and without carcinoid syndrome, and the prognostic value for overall survival (OS). METHODS: Data were collected from 255 patients with a PNET if 24-hour urinary 5-hydroxyindoleacitic acid excretion (5-HIAA) was assessed. Patients were diagnosed with serotonin secretion if 24-hour urinary 5-HIAA excretion was more than 3x the upper limit of normal (ULN) of 50 μmol/24 hours during follow-up...
May 2, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28458139/chlorogenic-acid-inhibits-hepatocellular-carcinoma-in-vitro-and-in-vivo
#13
Yuan Yan, Na Liu, Ni Hou, Lei Dong, Jie Li
Curative treatment of patients with hepatocellular carcinoma (HCC) is poor. There is an urgent need to develop more effective strategies for the chemoprevention of HCC. Chlorogenic acid (CGA), a type of polyphenol present in the diet, especially from coffee, has many biological activities. Patients with viral hepatitis who drank coffee everyday experienced a reduction in the incidence of HCC. In the present study, we evaluated the effects of CGA on HCC. CGA inhibited the proliferation of HepG2 cells in vitro and the progression of HepG2 xenograft in vivo...
April 18, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28454385/neuroendocrine-differentiation-is-predictive-of-poor-survival-in-patients-with-stage-ii-colorectal-cancer
#14
Yue Liu, Jinjie He, Jinghong Xu, Jun Li, Yurong Jiao, Dikai Bei, Yeting Hu, Haiyan Chen, Qian Xiao, Kefeng Ding
The diagnosis of neuroendocrine differentiation (NED) is made primarily on the basis of ultrastructure and/or immunohistochemistry (IHC). Synaptophysin (Syn) and chromogranin A (CgA) are two important frequently used NED markers in colorectal cancer (CRC). The association between NED and the prognosis of stage II CRC remains controversial. Administration of adjuvant chemotherapy remains challenging for stage II CRC. Identification of reliable factors that improve the selection of patients with stage II CRC at high risk following surgery is of great importance...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454214/genome-wide-analysis-of-gynecologic-cancer-the-cancer-genome-atlas-in-ovarian-and-endometrial-cancer
#15
Moito Iijima, Kouji Banno, Ryuichiro Okawa, Megumi Yanokura, Miho Iida, Takashi Takeda, Haruko Kunitomi-Irie, Masataka Adachi, Kanako Nakamura, Kiyoko Umene, Yuya Nogami, Kenta Masuda, Eiichiro Tominaga, Daisuke Aoki
Cancer typically develops due to genetic abnormalities, but a single gene abnormality cannot completely account for the onset of cancer. The Cancer Genome Atlas (CGA) project was conducted for the cross-sectional genome-wide analysis of numerous genetic abnormalities in various types of cancer. This approach has facilitated the identification of novel AT-rich interaction domain 1A gene mutations in ovarian clear cell carcinoma, frequent tumor protein 53 (TP53) gene mutations in high-grade ovarian serous carcinoma, and Kirsten rat sarcoma and B-rapidly accelerated fibrosarcoma proto-oncogene, serine/threonine kinase gene mutations in low-grade ovarian serous carcinoma...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28443506/catestain-a-master-regulator-of-cardiovascular-functions
#16
Sushil K Mahata, Malapaka Kiranmayi, Nitish R Mahapatra
Cardiovascular disease (CVD), the most common cause of death globally, accounts for ~30% of all deaths worldwide. Hypertension is a common contributor to morbidity and mortality from CVD. The plasma concentration of chromogranin A (CgA) is elevated in patients with CVD as well as patients with established human essential hypertension and heart failure (HF). In contrast, the plasma level of the CgA-derived peptide catestatin (CST) is diminished in human essential hypertension. Low conversion of CgA-to-CST has been associated with increased mortality in patients hospitalized with acute HF...
April 24, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28442394/granin-derived-peptides
#17
REVIEW
Josef Troger, Markus Theurl, Rudolf Kirchmair, Teresa Pasqua, Bruno Tota, Tommaso Angelone, Maria C Cerra, Yvonne Nowosielski, Raphaela Mätzler, Jasmin Troger, Jaur R Gayen, Vance Trudeau, Angelo Corti, Karen B Helle
The granin family comprises altogether 7 different proteins originating from the diffuse neuroendocrine system and elements of the central and peripheral nervous systems. The family is dominated by three uniquely acidic members, namely chromogranin A (CgA), chromogranin B (CgB) and secretogranin II (SgII). Since the late 1980s it has become evident that these proteins are proteolytically processed, intragranularly and/or extracellularly into a range of biologically active peptides; a number of them with regulatory properties of physiological and/or pathophysiological significance...
April 22, 2017: Progress in Neurobiology
https://www.readbyqxmd.com/read/28436184/delaying-cognitive-and-physical-decline-through-multidomain-interventions-for-residents-with-mild-to-moderate-dementia-in-dementia-care-units-in-taiwan-a-prospective-cohort-study
#18
Chih-Kuang Liang, Ming-Yueh Chou, Liang-Yu Chen, Kuei-Yu Wang, Shih-Yi Lin, Liang-Kung Chen, Yu-Te Lin, Tsung-Yun Liu, Ching-Hui Loh
AIM: To develop experimental multi-domain interventions for older people with mild-to-moderate dementia, and to evaluate the effect of delaying cognitive and physical decline, and improvement or prevention of geriatric syndromes during 1-year follow up. METHODS: Participants aged 65 years and older with mild-to-moderate dementia (clinical dementia rating [CDR] 1 or 2) were grouped as intervention in Jia-Li Veterans Home and usual care model in the community (Memory clinic)...
April 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28430903/co-storage-of-enteroendocrine-hormones-evaluated-at-the-cell-and-subcellular-levels-in-male-mice
#19
Linda J Fothergill, Brid Callaghan, Billie Hunne, David M Bravo, John B Furness
Recent studies reveal complex patterns of hormone co-expression within enteroendocrine cells (EEC), contrary to the traditional view that gut hormones are expressed individually in EEC. Moreover, different hormones have been found in separate subcellular vesicles. However, detailed analysis of relative expression of multiple hormones has not been made. Subcellular studies have been confined to peptide hormones, and have not included the indolamine, 5-HT, or the neuroendocrine protein, chromogranin A (CgA). In the present work, co-expression of 5-HT, CgA, secretin, CCK, ghrelin, and GLP-1 in mouse duodenum was quantified at a cellular and subcellular level by semi-automated cell counting and quantitative vesicle measurements...
April 18, 2017: Endocrinology
https://www.readbyqxmd.com/read/28412986/effects-of-subacute-ingestion-of-chlorogenic-acids-on-sleep-architecture-and-energy-metabolism-through-activity-of-the-autonomic-nervous-system-a-randomised-placebo-controlled-double-blinded-cross-over-trial
#20
Insung Park, Ryuji Ochiai, Hitomi Ogata, Momoko Kayaba, Sayaka Hari, Masanobu Hibi, Yoshihisa Katsuragi, Makoto Satoh, Kumpei Tokuyama
Chlorogenic acids (CGA) are the most abundant polyphenols in coffee. Continuous consumption of CGA reduces body fat and body weight. Since energy metabolism and sleep are controlled by common regulatory factors, consumption of CGA might modulate sleep. Lack of sleep has been identified as a risk factor for obesity, hypertension and type 2 diabetes. The aim of this study was to determine the effects of ingesting CGA over 5 d on energy metabolism and sleep quality in humans. A total of nine healthy subjects (four male and five female) completed a placebo-controlled, double-blinded, cross-over intervention study...
April 17, 2017: British Journal of Nutrition
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