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https://www.readbyqxmd.com/read/29166723/-association-between-serum-n%C3%AE%C2%B5-carboxymethyl-lysine-level-and-anterior-tibial-arterial-plaque-calcification-in-patients-with-diabetic-foot-post-foot-amputation
#1
L H Li, F Ye, X L Fu, S N Xu, Z Y Bao, Z Sun, J C Yan, J N Wu, Z Q Wang
Objective: To observe the correlation between Nε-carboxymethyl-Lysine (CML), the main component of advanced glycation end products and the calcification of the anterior tibial artery plaque in patients with diabetic foot post foot amputation. Methods: Sixty patients hospitalized for foot amputation operation due to diabetic foot from June 2012 to June 2016 in the Department of Orthopedics, Affiliated Hospital of Jiangsu University were prospectively recruited.The patients were categorized into mild stenosis (0<stenosis<50%, n=20), moderate stenosis (50%≤stenosis<70%, n=20) and severe stenosis (70%≤stenosis≤100%, n=20) based on the color Doppler ultrasound assessed severity of anterior tibial artery stenosis...
November 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29164854/nitrogen-doped-porous-carbon-zno-nanopolyhedra-derived-from-zif-8-new-materials-for-photoelectrochemical-biosensors
#2
Ruiying Yang, Xiaoxia Yan, Yanmei Li, Xiaohua Zhang, Jinhua Chen
Herein, novel photoactive materials, nitrogen-doped porous carbon-ZnO (NPC-ZnO) nanopolyhedra, were prepared by direct carbonization of ZIF-8 nanopolyhedra in a nitrogen atmosphere. The morphology, structure and photoelectrochemical (PEC) properties were characterized by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, nitrogen adsorption-desorption method, and PEC methods. The results showed that the obtained NPC-ZnO nanopolyhedra had rhombic dodecahedron morphology with uniform particle size of about 100 nm and high surface area of 609...
November 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29164709/identification-of-pyridoxal-phosphate-modified-proteins-using-mass-spectrometry
#3
Yue Wu, Jin Chen, Zheyi Liu, Fangjun Wang
RATIONALE: Pyridoxal 5'-phosphate (PLP) cooperates with a variety of enzymes in all organisms for many important biological processes. The development of mass-spectrometry-based methodology for high throughput modification analyses could provide an alternative way for PLP identification. The present study aims to identify PLP modification. METHODS: More PLP site-determining information was obtained by introducing multistage activation (MSA) assisted collision induced dissociation (CID)...
November 22, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/29163972/prevalence-of-fecal-incontinence-in-a-cohort-of-systemic-sclerosis-patients-within-a-regional-referral-network
#4
A Garros, S Marjoux, C Khouatra, B Coppere, C Grange, A Hot, S Roman, H Damon, F Mion
Background: The prevalence of gastrointestinal involvement in systemic sclerosis is higher than 75%. The estimated prevalence of fecal incontinence varies from 22% to 77%, but suffers from recruitment bias and patient reluctance. Our goal was to evaluate the prevalence of fecal incontinence in systemic sclerosis, and to identify associated risk factors. Methods: Patients were recruited in the referral systemic sclerosis network of the Lyon University Hospitals, using self-administered questionnaires including constipation, fecal incontinence and Bristol Stool scales, quality of life, anxiety and depression...
November 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/29163173/investigation-of-liver-injury-of-polygonum-multiflorum-thunb-in-rats-by-metabolomics-and-traditional-approaches
#5
Yun-Xia Li, Xiao-Hong Gong, Mei-Chen Liu, Cheng Peng, Peng Li, Yi-Tao Wang
Liver injury induced by Polygonum multiflorum Thunb. (PM) have been reported since 2006, which aroused widespread concern. However, the toxicity mechanism of PM liver injury remained unclear. In this study, the mechanism of liver injury induced by different doses of PM after long-term administration was investigated in rats by metabolomics and traditional approaches. Rats were randomly divided into control group and PM groups. PM groups were oral administered PM of low (10 g/kg), medium (20 g/kg), high (40 g/kg) dose, while control group was administered distilled water...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29163169/icariin-enhances-bone-repair-in-rabbits-with-bone-infection-during-post-infection-treatment-and-prevents-inhibition-of-osteoblasts-by-vancomycin
#6
Yang Zhang, Lifeng Shen, Zhujun Mao, Nani Wang, Xuping Wang, Xiaowen Huang, Ying Hu, Dan Shou, Chengping Wen
Vancomycin is an effective antibiotic for treatment of bone infection caused by Staphylococcus aureus, however, a high local concentration of vancomycin might induce a delay in bone union. Icariin has been reported to suppress osteoclastogenes and promote osteogenesis. Our study aimed to investigate the effect of icariin on bone repair after anti-infection treatment in vivo and to explore the resisting effect of icariin on rat calvarial osteoblasts (ROBs) inhibited with high doses of vancomycin. Rabbits with bone infection of S...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29162499/metabolic-strategies-for-the-degradation-of-the-neuromodulator-agmatine-in-mammals
#7
REVIEW
José Benítez, David García, Nicol Romero, Arlette González, José Martinez, Maximiliano Figueroa, Mónica Salas, Vasthi López, Peter R Dodd, Gerhard Schenk, Nelson Carvajal, Elena Uribe
Agmatine (1-amino-4-guanidinobutane), a precursor for polyamine biosynthesis, has been identified as an important neuromodulator with anticonvulsant, antineurotoxic and antidepressant actions in the brain. In this context it has emerged as an important mediator of addiction/satiety pathways associated with alcohol misuse. Consequently, the regulation of the activity of key enzymes in agmatine metabolism is an attractive strategy to combat alcoholism and related addiction disorders. Agmatine results from the decarboxylation of L-arginine in a reaction catalyzed by arginine decarboxylase (ADC), and can be converted to either guanidine butyraldehyde by diamine oxidase (DAO) or putrescine and urea by the enzyme agmatinase (AGM) or the more recently identified AGM-like protein (ALP)...
November 18, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29162339/acute-kidney-injury-and-risk-of-incident-heart-failure-among-us-veterans
#8
Nisha Bansal, Michael E Matheny, Robert A Greevy, Svetlana K Eden, Amy M Perkins, Sharidan K Parr, James Fly, Khaled Abdel-Kader, Jonathan Himmelfarb, Adriana M Hung, Theodore Speroff, T Alp Ikizler, Edward D Siew
BACKGROUND: Acute kidney injury (AKI) is common and associated with poor outcomes. Heart failure is a leading cause of cardiovascular disease among patients with chronic kidney disease. The relationship between AKI and heart failure remains unknown and may identify a novel mechanistic link between kidney and cardiovascular disease. STUDY DESIGN: Observational study. SETTING & PARTICIPANTS: We studied a national cohort of 300,868 hospitalized US veterans (2004-2011) without a history of heart failure...
November 18, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/29160033/discordant-fetal-phenotype-of-hypophosphatasia-in-two-siblings
#9
Satoru Ikenoue, Kei Miyakoshi, Tomohiro Ishii, Yu Sato, Toshimitsu Otani, Yohei Akiba, Yoshifumi Kasuga, Daigo Ochiai, Tadashi Matsumoto, Yosuke Ichihashi, Yohei Matsuzaki, Kanako Tachikawa, Toshimi Michigami, Gen Nishimura, Kazushige Ikeda, Tomonobu Hasegawa, Mamoru Tanaka
Hypophosphatasia (HPP) is an autosomal recessive metabolic disorder with impaired bone mineralization due to mutations in the ALPL gene. The genotype-phenotype correlation of this disorder has been widely described. Here, we present two affected siblings, whose fetal phenotypes were discordant. A 31-year-old Japanese woman, G0P0, was referred to our institution because of fetal micromelia. After obstetric counseling, the pregnancy was terminated at 21 weeks' gestation. Post-mortem radiographs demonstrated severely defective mineralization of the skeleton...
November 21, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29159895/proliferation-and-differentiation-of-mesenchymal-stem-cells-on-scaffolds-containing-chitosan-calcium-polyphosphate-and-pigeonite-for-bone-tissue-engineering
#10
S Dhivya, A Keshav Narayan, R Logith Kumar, S Viji Chandran, M Vairamani, N Selvamurugan
OBJECTIVES: Treatment of critical-sized bone defects with cells and biomaterials offers an efficient alternative to traditional bone grafts. Chitosan (CS) is a natural biopolymer that acts as a scaffold in bone tissue engineering (BTE). Polyphosphate (PolyP), recently identified as an inorganic polymer, acts as a potential bone morphogenetic material, whereas pigeonite (Pg) is a novel iron-containing ceramic. In this study, we prepared and characterized scaffolds containing CS, calcium polyphosphate (CaPP) and Pg particles for bone formation in vitro and in vivo...
November 21, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/29159326/overexpression-of-id1-reverses-the-repression-of-human-dental-pulp-stem-cells-differentiation-induced-by-twist1-silencing
#11
Izabela Maciejewska, Monika Sakowicz-Burkiewicz, Marta Krzeminska, Tadeusz Pawelczyk
Multiple studies showed that the cessation of TWIST1 expression is the prerequisite for osteoblasts' maturation. However, recent reports revealed that the function of TWIST1 is different in the dental pulp stem cells (DPSCs), where a high level of TWIST1 expression promoted DPSCs' differentiation. The aim of the study was to investigate the impact of TWIST1 and ID1 on the differentiation process in the human DPSCs. METHODS: TWIST1 and ID1 expression in the DSPCs was modulated by lentivirus transduction...
November 20, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/29159028/risk-factors-for-bone-metastasis-from-renal-cell-cancer
#12
Xuan-Yin Chen, Min Lan, Yang Zhou, Wen-Zhao Chen, Dong Hu, Jia-Ming Liu, Shan-Hu Huang, Zhi-Li Liu, Zhi-Hong Zhang
Objective: The prognosis for renal cell carcinoma (RCC) is related to a high rate of metastasis, including 30% of bone metastasis. In this study, we investigate the correlation between diverse clinical factors and bone metastases secondary from renal cell cancer (RCC), and to identify potential risk factors for bone metastasis in newly diagnosed patients and those who have already received treatment. Methods: The clinical data of 372 patients with RCC were reviewed from January 2000 to August 2016...
November 2017: Journal of Bone Oncology
https://www.readbyqxmd.com/read/29158525/photoacoustic-stimulation-promotes-the-osteogenic-differentiation-of-bone-mesenchymal-stem-cells-to-enhance-the-repair-of-bone-defect
#13
Zebin Huang, Jiankun Xu, Jiebin Chen, Hongjiang Chen, Hailong Wang, Zhonglian Huang, Youbin Chen, Xiaolin Lu, Fushen Lu, Jun Hu
The aim of this study was to evaluate the direct photoacoustic (PA) effect on bone marrow mesenchymal stem cells (BMSCs) which is a key cell source for osteogenesis. As scaffold is also an indispensable element for tissue regeneration, here we firstly fabricated a composited sheet using polylactic-co-glycolic acid (PLGA) mixing with graphene oxide (GO). BMSCs were seeded on the PLGA-GO sheets and received PA treatment in vitro for 3, 9 and 15 days, respectively. Then the BMSCs were harvested and subjected to assess alkaline phosphatase (ALP) activity, calcium content and osteopontin (OPN) on 3, 9 and 15 days...
November 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29158034/different-notch-signaling-in-cells-from-calcified-bicuspid-and-tricuspid-aortic-valves
#14
A Kostina, A Shishkova, E Ignatieva, O Irtyuga, M Bogdanova, K Levchuk, A Golovkin, E Zhiduleva, V Uspenskiy, O Moiseeva, G Faggian, J Vaage, A Kostareva, A Rutkovskiy, A Malashicheva
AIMS: Calcific aortic valve disease is the most common heart valve disease in the Western world. Bicuspid and tricuspid aortic valve calcifications are traditionally considered together although the dynamics of the disease progression is different between the two groups of patients. Notch signaling is critical for bicuspid valve development and NOTCH1 mutations are associated with bicuspid valve and calcification. We hypothesized that Notch-dependent mechanisms of valve mineralization might be different in the two groups...
November 17, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29157978/stem-cell-based-gene-delivery-mediated-by-cationic-niosomes-for-bone-regeneration
#15
Noha Attia, Mohamed Mashal, Santiago Grijalvo, Ramon Eritja, Jon Zárate, Gustavo Puras, José Luis Pedraz
Bone morphogenetic protein-7(BMP-7) plays a pivotal role in the transformation of mesenchymal stem cells (MSCs) into bone. However, its impact is hampered due to its short half-life. Therefore, gene therapy may be an interesting approach to deliver BMP-7 gene to D1-MSCs. In this manuscript we prepared and characterized niosomes based on cationic lipid 2,3-di(tetradecyloxy)propan-1-amine, combined with polysorbate 80 for gene delivery purposes. Niosomes were characterized and combined initially with pCMS-EGFP reporter plasmid, and later with pUNO1-hBMP-7 plasmid to evaluate osteogenesis differentiation...
November 17, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29157270/autologous-platelet-rich-plasma-induces-bone-formation-of-tissue-engineered-bone-with-bone-marrow-mesenchymal-stem-cells-on-beta-tricalcium-phosphate-ceramics
#16
Tengbo Yu, Huazheng Pan, Yanling Hu, Hao Tao, Kai Wang, Chengdong Zhang
BACKGROUND: The purpose of the study is to investigate whether autologous platelet-rich plasma (PRP) can serve as bone-inducing factors to provide osteoinduction and improve bone regeneration for tissue-engineered bones fabricated with bone marrow mesenchymal stem cells (MSCs) and beta-tricalcium phosphate (β-TCP) ceramics. The current study will give more insight into the contradictory osteogenic capacity of PRP. METHODS: The concentration of platelets, platelet-derived growth factor-AB (PDGF-AB), and transforming growth factor-β1 (TGF-β1) were measured in PRP and whole blood...
November 21, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29156864/evaluation-of-lipid-profiles-in-patients-treated-with-capecitabine
#17
Nursel Sürmelioğlu, Semra Paydaş, Yusuf Karataş, Gülşah Seydaoğlu
Background/aim: Capecitabine is a prodrug of 5-fluorouracil and has shown significant antitumor activity. The main adverse effects are hand-foot syndrome, diarrhea, and dermatitis. In recent years, hypertriglyceridemia has been reported in patients treated with capecitabine. Dyslipidemia is a rare but important side effect of capecitabine. The aim of this study is to examine the changes in lipid levels during capecitabine treatment and to raise awareness of pharmacovigilance. Materials and methods: In this retrospective study, it was aimed to analyze lipid metabolism after capecitabine treatment and is intended to contribute to the formation of a pharmacoepidemiological database...
August 23, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29156856/clinical-and-surgical-outcomes-of-upper-lumbar-disc-herniations-a-retrospective-study
#18
Burak Karaaslan, Ayfer Aslan, Alp Özgün Börcek, Memduh Kaymaz
Background/aim: Upper lumbar disc herniation (LDH), generally involving L1?L2 and L2?L3 level herniation, is less common than lower LDH and, in this retrospective study, the clinical and radiological findings of patients who suffered from upper LDH and were operated on due to this pathology were reviewed. Materials and methods: Data regarding neurological and radiological findings of patients operated on between January 2005 and December 2013 were retrospectively collected. During this period, 3494 patients had surgery for LDH, and 129 of these patients had disc herniation at the upper levels...
August 23, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29156529/alpinetin-improved-high-fat-diet-induced-non-alcoholic-fatty-liver-disease-nafld-through-improving-oxidative-stress-inflammatory-response-and-lipid-metabolism
#19
Yong Zhou, Yin-Lu Ding, Jian-Liang Zhang, Peng Zhang, Jin-Qing Wang, Zhao-Hua Li
The non-alcoholic fatty liver disease (NAFLD) has become a serious medical problem and an increasing threat to public health. It is characterized by the abnormal fat accumulation in liver without excessive alcohol intake. The concurrent NAFLD might up-regulate the risk of chronic kidney disease as well as the mortality rate. Though various drugs have been investigated to attenuate NAFLD, further study is still necessary to find new therapeutic strategy and to reveal the underlying molecular mechanism. In the present study, NAFLD animal models were induced by feeding with high fat (HF) diet for 8 weeks...
November 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29156308/modulatory-effects-of-green-tea-extract-against-the-hepatotoxic-effects-of-4-nonylphenol-in-catfish-clarias-gariepinus
#20
A H Sayed, Hamdy A M Soliman
The antioxidant role of the green tea (Camellia sinensis) extract (GTE) was examined to remedy the toxic effects of (0.2mgl(-1)) 4-nonylphenol(4-NP). Biochemical parameters, antioxidant enzymes, liver lipid peroxidation (LPO), DNA fragmentation, and apoptosis as well as histopathology of liver of African catfish Clarias gariepinus were considered. Catfishes were divided into four groups: first group (control), second group (0.2mgl(-1) of 4-NP), third group (0.2mgl(-1)of 4-NP +100mg GTE l(-1)water), and fourth group (0...
November 17, 2017: Ecotoxicology and Environmental Safety
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