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https://www.readbyqxmd.com/read/28445988/specific-up-regulation-of-p21-by-a-small-active-rna-sequence-suppresses-human-colorectal-cancer-growth
#1
Lu-Lu Wang, Hui-Hui Guo, Yun Zhan, Chen-Lin Feng, Shuai Huang, Yan-Xing Han, Wen-Sheng Zheng, Jian-Dong Jiang
The double stranded small active RNA (saRNA)- p21-saRNA-322 inhibits tumor growth by stimulating the p21 gene expression. We focused our research of p21-saRNA-322 on colorectal cancer because 1) p21 down-regulation is a signature abnormality of the cancer, and 2) colorectal cancer might be a suitable target for in situ p21-saRNA-322 delivery. The goal of the present study is to learn the activity of p21-saRNA-322 in colorectal cancer. Three human colorectal cancer cell lines, HCT-116, HCT-116 (p53-/-) and HT-29 were transfected with the p21-saRNA-322...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445281/relationship-between-the-abnormal-diastolic-vortex-structure-and-impaired-left-ventricle-filling-in-patients-with-hyperthyroidism
#2
Bin-Yu Zhou, Ming-Xing Xie, Jing Wang, Xin-Fang Wang, Qing Lv, Man-Wei Liu, Shuang-Shuang Kong, Ping-Yu Zhang, Jin-Feng Liu
Intraventricular hydrodynamics plays an important role in evaluating cardiac function. Relationship between diastolic vortex and left ventricular (LV) filling is still rarely elucidated. The aim of this study was to evaluate the evolution of vortex during diastole in hyperthyroidism (HT) and explore the alteration of hydromechanics characteristics with sensitive indexes.Forty-three patients diagnosed with HT were classified into 2 groups according to whether myocardial damage existed: simple hyperthyroid group (HT1, n = 21) and thyrotoxic cardiomyopathy (HT2, n = 22)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28444658/comparing-the-immune-genomic-effects-of-vilazodone-and-paroxetine-in-late-life-depression-a-pilot-study
#3
Harris Eyre, Prabha Siddarth, Natalie Cyr, Hongyu Yang, Steve Cole, Malcolm Forbes, Helen Lavretsky
Vilazodone is a novel antidepressant agent that combines selective serotonin (5-HT) reuptake inhibitor (SSRI) activity and 5-HT(1A) receptor partial agonist activity. A pilot study was conducted to compare vilazodone (novel compound) and paroxetine (gold standard) on antidepressant effects, tolerability, and inflammation and immune modulation. A 12-week, double-blind, randomized clinical trial was conducted with 56 nondemented older adults diagnosed with major depressive disorder (MDD). Between-group differences in mood, tolerability, and safety, as well as genomic markers of inflammation and immune modulation, were examined...
April 25, 2017: Pharmacopsychiatry
https://www.readbyqxmd.com/read/28444120/premenopausal-hysterectomy-and-risk-of-ovarian-cancer-in-african-american-women
#4
Lauren C Peres, Anthony J Alberg, Elisa V Bandera, Jill Barnholtz-Sloan, Melissa Bondy, Michele L Cote, Ellen Funkhouser, Patricia G Moorman, Edward S Peters, Ann G Schwartz, Paul D Terry, Sarah E Abbott, Fabian Camacho, Frances Wang, Joellen M Schildkraut
Although the inverse association between hysterectomy and epithelial ovarian cancer (EOC) was considered well established, investigators in recent studies including women diagnosed after 2000 have observed modest increases in risk. Most studies have been conducted in white women with little representation of African-American women. We examined the relationship between premenopausal hysterectomy and EOC in African-American women and explored whether hormone therapy (HT) modified this association in 614 cases and 743 controls enrolled in the African American Cancer Epidemiology Study (2010-2015)...
April 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28443243/association-between-hashimoto-s-thyroiditis-and-thyroid-cancer-in-64-628-patients
#5
Christina Resende de Paiva, Christian Grønhøj, Ulla Feldt-Rasmussen, Christian von Buchwald
BACKGROUND: The incidence of thyroid cancer (TC) is increasing although explanatory causes are lacking. A link between cancer and inflammation is well documented but unclear for autoimmune thyroid diseases and TC. We aimed to systematically review the association between Hashimoto's thyroiditis (HT) and papillary, follicular, medullary, anaplastic thyroid carcinoma, and thyroid lymphoma (TL). METHODS: PubMed, OVID Medline, Google Scholar, and the Cochrane Library were searched from 1955 to 2016...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28442790/serotonergic-dysfunctions-and-abnormal-iron-metabolism-relevant-to-mental-fatigue-of-parkinson-disease
#6
Li-Jun Zuo, Shu-Yang Yu, Yang Hu, Fang Wang, Ying-Shan Piao, Teng-Hong Lian, Qiu-Jin Yu, Rui-Dan Wang, Li-Xia Li, Peng Guo, Yang Du, Rong-Yan Zhu, Zhao Jin, Ya-Jie Wang, Xiao-Min Wang, Piu Chan, Sheng-Di Chen, Yong-Jun Wang, Wei Zhang
Fatigue is a very common non-motor symptom in Parkinson disease (PD) patients. It included physical fatigue and mental fatigue. The potential mechanisms of mental fatigue involving serotonergic dysfunction and abnormal iron metabolism are still unknown. Therefore, we evaluated the fatigue symptoms, classified PD patients into fatigue group and non-fatigue group, and detected the levels of serotonin, iron and related proteins in CSF and serum. In CSF, 5-HT level is significantly decreased and the levels of iron and transferrin are dramatically increased in fatigue group...
December 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28441970/salidroside-contributes-to-reducing-blood-pressure-and-alleviating-cerebrovascular-contractile-activity-in-diabetic-goto-kakizaki-rats-by-inhibition-of-l-type-calcium-channel-in-smooth-muscle-cells
#7
Yu-Guang Ma, Jun-Wei Wang, Yun-Gang Bai, Mei Liu, Man-Jiang Xie, Zhi-Jun Dai
BACKGROUND: Vascular disease is a common and often severe complication in diabetes mellitus. Hyperglycemia and hypertension are considered to be two of the leading risk factors for vascular complications in diabetic patients. However, few pharmacologic agents could provide a combinational therapy for controlling hyperglycemia and blood pressure in diabetic patients at the same time. Salidroside (SAL) is the major active ingredient derived from Rhodiola. Recently, it has been reported that SAL have an obvious hypoglycemic effect in diabetes and show a beneficial activity in diabetic vascular dysfunction...
April 26, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28441380/comparison-of-general-obesity-and-measures-of-body-fat-distribution-in-older-adults-in-relation-to-cancer-risk-meta-analysis-of-individual-participant-data-of-seven-prospective-cohorts-in-europe
#8
Heinz Freisling, Melina Arnold, Isabelle Soerjomataram, Mark George O'Doherty, José Manuel Ordóñez-Mena, Christina Bamia, Ellen Kampman, Michael Leitzmann, Isabelle Romieu, Frank Kee, Konstantinos Tsilidis, Anne Tjønneland, Antonia Trichopoulou, Paolo Boffetta, Vassiliki Benetou, H B As Bueno-de-Mesquita, José María Huerta, Hermann Brenner, Tom Wilsgaard, Mazda Jenab
BACKGROUND: We evaluated the associations of anthropometric indicators of general obesity (body mass index, BMI), an established risk factor of various cancer, and body fat distribution (waist circumference, WC; hip circumference, HC; and waist-to-hip ratio, WHR), which may better reflect metabolic complications of obesity, with total obesity-related and site-specific (colorectal and postmenopausal breast) cancer incidence. METHODS: This is a meta-analysis of seven prospective cohort studies participating in the CHANCES consortium including 18 668 men and 24 751 women with a mean age of 62 and 63 years, respectively...
April 25, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28441337/a-study-of-the-differential-effects-of-eicosapentaenoic-acid-epa-and-docosahexaenoic-acid-dha-on-gene-expression-profiles-of-stimulated-thp-1-macrophages
#9
Bénédicte Allam-Ndoul, Frédéric Guénard, Olivier Barbier, Marie-Claude Vohl
Background: An appropriate intake of omega-3 (n-3) fatty acids (FAs) such as eicosapentaenoic and docosahexaenoic acid (EPA/DHA) from marine sources is known to have anti-inflammatory effects. However, molecular mechanisms underlying their beneficial effects on health are not fully understood. The aim of the present study was to characterize gene expression profiles of THP-1 macrophages, incubated in either EPA or DHA and stimulated with lipopolysaccharide (LPS), a pro-inflammatory agent. Methods: THP-1 macrophages were incubated into 10, 50 and 75 µM of EPA or DHA for 24 h, and 100 nM of LPS was added to the culture media for 18 h...
April 25, 2017: Nutrients
https://www.readbyqxmd.com/read/28440465/5-furan-2-yl-4-3-4-5-trimethoxyphenyl-3h-1-2-dithiol-3-one-oxime-6f-a-new-synthetic-compound-causes-human-%C3%AF-brosarcoma-ht-1080-cell-apoptosis-by-disrupting-tubulin-polymerisation-and-inducing-g2-m-arrest
#10
Daiying Zuo, Lili Pang, Jiwei Shen, Qi Guan, Zhaoshi Bai, Huijuan Zhang, Yao Li, Guodong Lu, Weige Zhang, Yingliang Wu
In the current study, we synthesized a series of new compounds targeting tubulin and tested their anti-proliferative activities. Among these new synthetic com-pounds, 5-(furan-2-yl)-4-(3,4,5-trimethoxyphenyl)-3H-1,2-dithiol-3-one oxime (6f) exhibited significant anti-proliferative activity against different human cancer cell lines including human gastric adenocarcinoma SGC-7901, human non-small cell lung cancer A549, and human fibrosarcoma HT-1080. As a result, 6f was selected to further test the sensitivity to different cancer cell lines including human cervical cancer cell line HeLa, human breast cancer cell line MCF-7, non-small cell lung cancer cell line A549, human liver carcinoma cell line HepG-2, human oral squamous cell carcinoma cell lines KB, SGC-7901 and HT-1080...
April 18, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28440417/increased-cd19-cd24-cd27-b-regulatory-cells-are-associated-with-insulin-resistance-in-patients-with-type-i-hashimoto-s-thyroiditis
#11
Min Yang, Changji Du, Yinping Wang, Jun Liu
Hashimoto's thyroiditis (HT) is characterized by dysregulated immune responses and is commonly associated with insulin resistance. However, the mechanism of insulin resistance in HT remains to be fully elucidated. The aim of the present study was to investigate the correlation between the percentage of B regulatory lymphocytes (Bregs) and insulin resistance in patients with HT but with normal thyroid function (type I). A total of 59 patients with type I HT and 38 healthy volunteers were enrolled in the study...
April 25, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440203/antimicrobial-biofilm-inhibitory-and-anti-infective-activity-of-metallic-nanoparticles-against-multi-drug-resistant-mrsa-and-pseudomonas-aeruginosa-pa01
#12
Jamuna Bai Ashwathanarayan, Ravishankar Rai Vittal
BACKGROUND: The emergence of drug resistant pathogens is a major concern to the scientific community. Novel approaches such as the use of functionalized nanomaterials with antimicrobial activity is required to treat infectious diseases. OBJECTIVE: In the present study, the metallic nanoparticles (iron, gold, zinc oxide and copper oxide) were evaluated for the antimicrobial, biofilm inhibitory and anti-infective activity against human pathogens methicillin resistant Staphylococcus aureus and Pseudomonas aeruginosa PA01...
April 24, 2017: Pharmaceutical Nanotechnology
https://www.readbyqxmd.com/read/28440063/micronuclei-and-nuclear-buds-highlighting-overlooked-indicators-of-chromosomal-damage-in-thyroid-aspiration-smears
#13
Tuba Dilay Kokenek-Unal, Ipek Coban
BACKGROUND: We aimed to examine the diagnostic utility of micronuclei (MN) and nuclear buds (NBs) in aspiration smears of the well-differentiated epithelial lesions of thyroid. METHODS: One hundred five cases composed of 34 follicular nodular disease (FND), 31 Hashimoto's thyroiditis (HT), and 40 papillary thyroid carcinoma (PTC) were compiled retrospectively. May- Grünwald Giemsa (MGG) stained smears of each case were selected to count cells with nuclear protrusions (NPs) per 1000 cells...
April 24, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28439932/photophysical-characterization-of-tolyporphin-a-a-naturally-occurring-dioxobacteriochlorin-and-synthetic-oxobacteriochlorin-analogues
#14
Don Hood, Dariusz M Niedzwiedzki, Ran Zhang, Yunlong Zhang, Jingqiu Dai, Eric S Miller, David F Bocian, Philip G Williams, Jonathan S Lindsey, Dewey Holten
Tolyporphins are tetrapyrrole macrocycles produced by a cyanobacterium-containing culture known as HT-58-2. Tolyporphins A-J are free base dioxobacteriochlorins whereas tolyporphin K is an oxochlorin. Here, the photophysical characterization is reported of tolyporphin A and two synthetic analogues, an oxobacteriochlorin and a dioxobacteriochlorin. The characterization (in toluene, diethyl ether, ethyl acetate, dichloromethane, 1-pentanol, 2-butanone, ethanol, methanol, N,N-dimethylformamide, and dimethylsulfoxide) includes static absorption and fluorescence spectra, fluorescence quantum yields, and time-resolved data...
April 25, 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/28438641/improving-therapeutics-in-anorexia-nervosa-with-tryptophan
#15
REVIEW
Darakhshan Jabeen Haleem
A growing body of evidence suggests that our diet is an important contributing factor in the development, management and prevention of a number of psychiatric illnesses. Tryptophan, an essential amino acid, is the sole precursor of neurotransmitter 5-hydroxytryptamine (5-HT; serotonin). Administration of tryptophan can boost serotonin neurotransmission to produce therapeutically important effects in serotonin deficiency disorders. Anorexia nervosa (AN) an eating disorder associated with high levels of psychiatric comorbidity including psychosis, hyperactivity, depression and anxiety has highest lethality of all psychiatric illnesses...
April 21, 2017: Life Sciences
https://www.readbyqxmd.com/read/28438291/radiation-induced-hypothyroidism-after-imrt-for-nasopharyngeal-carcinoma-clinical-and-dosimetric-predictors-in-a-prospective-cohort-study
#16
Rui-Ping Zhai, Fang-Fang Kong, Cheng-Run Du, Chao-Su Hu, Hong-Mei Ying
OBJECTIVES: To investigate the rate and risk factors for developing hypothyroidism (HT) in nasopharyngeal carcinoma (NPC) patients treated with intensity-modulated radiotherapy (IMRT). MATERIALS AND METHODS: A total of 135 consecutive patients treated with IMRT for NPC were prospectively evaluated during a median follow up of 34.1months. Serum thyroid function assessments before and after IMRT were periodically monitored. To identify risk factors for HT occurrence, univariate and multivariate Cox regression analyses were performed...
May 2017: Oral Oncology
https://www.readbyqxmd.com/read/28436255/detection-and-characterization-of-small-infarcts-in-the-caudate-nucleus-on-7-tesla-mri-the-smart-mr-study
#17
Rashid Ghaznawi, Jeroen de Bresser, Yolanda van der Graaf, Maarten Ht Zwartbol, Theo D Witkamp, Mirjam I Geerlings, Jeroen Hendrikse
Small infarcts are among the key imaging features of cerebral small vessel disease (CSVD), but remain largely undetected on conventional MRI. We aimed to evaluate (1) imaging criteria for the detection of small infarcts in the caudate nucleus on 7T MRI, (2) intra- and inter-rater agreement, (3) frequency and (4) detection rate on 7T versus 1.5T MRI. In 90 patients (68 ± 8 years) with a history of vascular disease from the SMART-MR study, we defined 7T imaging criteria for cavitated and non-cavitated small infarcts in the caudate nucleus...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28435974/-antidepressant-effects-of-the-extract-of-dendrobium-nobile-lindl-on-chronic-unpredictable-mild-stress-induced-depressive-mice
#18
Ning Jiang, Lin-Xi Fan, Yu-Jie Yang, Xin-Min Liu, Hai-Ying Lin, Li Gao, Qiong Wang
To investigate whether the extract of Dendrobium nobile Lindl (DNL) has an antidepressant effect on chronic unpredictable mild stress (CUMS)-induced depressive mice, 72 BALB/c male mice were randomly divided into the control group, the CUMS model group, the extract of DNL groups (50, 100 and 200 mg/kg DNL, i.g.) and the paroxetine group (10 mg/kg, i.g.). The different doses of DNL or the paroxetine was administered orally once daily to CUMS mice for 8 weeks (containing two-week preventive medication before the modeling)...
April 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28435250/sl2b-aptamer-and-folic-acid-dual-targeting-dna-nanostructures-for-synergic-biological-effect-with-chemotherapy-to-combat-colorectal-cancer
#19
Pengchao Sun, Nan Zhang, Yafang Tang, Yanan Yang, Xiao Chu, Yongxing Zhao
DNA nanostructures prepared by self-assembly possess good stability, high biocompatibility, and low immunogenicity as drug delivery vehicles. In this work, DNA tetrahedron (TD) was constructed and modified with SL2B aptamer (S) and folic acid (F). TD possessed a small diameter (~6 nm) and entered into the nucleus quickly. SL2B aptamer can inhibit cancer cell growth by disturbing vascular endothelial growth factor/Notch signaling pathways. To explore the effect of SL2B number on colorectal cancer inhibition, SL2B multimers (dimer, trimer, and tetramer) were constructed by functionalization of TD with different numbers of SL2B...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28434742/endocrine-and-metabolic-changes-in-transition-dairy-cows-are-affected-by-prepartum-infusions-of-a-serotonin-precursor
#20
Lorenzo E Hernández-Castellano, Laura L Hernandez, Helga Sauerwein, Rupert M Bruckmaier
Serotonin (5-HT) has been shown to be involved in calcium homeostasis, modulating calcium concentration in blood. In addition, 5-HT participates in a variety of metabolic pathways, mainly through the modulation of glucose and lipid metabolism. The hypothesis of the present study was that the prepartum administration of 5-hydroxy-l-tryptophan (5-HTP), a 5-HT precursor, would affect endocrine systems related to calcium homeostasis, and interact with other endocrine and metabolic pathways during the transition period...
April 20, 2017: Journal of Dairy Science
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