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https://www.readbyqxmd.com/read/29458051/elevated-systemic-zonula-occludens-1-is-positively-correlated-with-inflammation-in-cirrhosis
#1
Ashwini Karthikeyan, Pazhanivel Mohan, Palanivel Chinnakali, Balasubramaniyan Vairappan
BACKGROUND/AIM: It has been well established that disruption of the intestinal barrier function and increased intestinal permeability contribute to endotoxemia and associated liver injury in patients with cirrhosis. However, the relationship between systemic inflammation and tight junction protein in cirrhosis remain unidentified. The aim of this study was to assess and compare the blood concentrations of ZO-1 with systemic hsCRP in patients with cirrhosis and healthy individuals. METHODS: 30 cirrhotic patients and 30 healthy individuals were enrolled in the study...
February 16, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29457591/effects-of-polycaprolactone-biphasic-calcium-phosphate-scaffolds-on-enhancing-growth-and-differentiation-of-osteoblasts
#2
Nuttawut Thuaksuban, Naruporn Monmaturapoj, Thunmaruk Luntheng
BACKGROUND: Polycaprolactone (PCL)-biphasic calcium phosphate (BCP) scaffolds fabricated using Melt-Stretching and Compression Molding (MSCM) can release calcium and phosphate ions, which are essential for bone formation. OBJECTIVE: Responses of the osteoblasts seeded on three groups of scaffolds including group A; PCL-20% BCP (%wt), group B; PCL-30% BCP and group C (control); pure PCL (100% PCL) were evaluated. METHODS: The cell-scaffold constructs were made by seeding osteoblast cell lines at 1×105 cells/scaffold...
2018: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/29457170/sensitive-detection-of-alkaline-phosphatase-by-dephosphorylation-initiated-transcription-reaction-mediated-dual-signal-amplification
#3
Fei Ma, Wen-Jing Liu, Li Liang, Bo Tang, Chun-Yang Zhang
We develop a new fluorescence method for the sensitive detection of alkaline phosphatase (ALP) based on dephosphorylation-initiated transcription reaction-mediated dual signal amplification. This research demonstrates for the first time a significant improvement in ALP assay performance by using a nucleic acid amplification strategy, which enables sensitive detection of ALP activity in vitro and in cell extracts. Importantly, this method can be further applied for kinetic analysis and ALP inhibition assay.
February 19, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29456683/carbenoxolone-inhibits-mechanical-stress-induced-osteogenic-differentiation-of-mesenchymal-stem-cells-by-regulating-p38-mapk-phosphorylation
#4
Shenglong Li, Jing Wang, Yudi Han, Xiaoteng Li, Changjian Liu, Zhengshuai Lv, Xiuhui Wang, Xin Tang, Zhe Wang
The aim of the present study was to explore the effects of pannexin1 (Px1) protein channels on osteogenic differentiation of mesenchymal stem cells (MSCs) under mechanical stress stimulation. MSCs were isolated from Sprague Dawley rats (3 weeks old, weighing 100-120 g) and cultured in vitro . A safe concentration of carbenoxolone was determined (CBX, an inhibitor of Px1 channels; 100 µM) on MSCs using the Cell Counting Kit-8 (CCK8) method. MSCs were divided into 6 groups: Control, stress (4,000 µ strain), and stress following 3, 6, 12, and 24 h pretreatment with CBX...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29453660/verification-of-candidate-microrna-markers-for-parathyroid-carcinoma
#5
Ya Hu, Xiang Zhang, Ming Cui, Zhe Su, Mengyi Wang, Quan Liao, Yupei Zhao
PURPOSE: Parathyroid carcinoma (PCa) is a rare endocrine malignancy with poor prognosis and is often difficult to accurately diagnose both before and after surgery. Dysregulated microRNA (miRNA) levels have been identified in PCa using a limited number of samples. The aim of the present study was to verify a group of miRNA markers in a new series of samples to explore their potential significance in PCa diagnosis. METHODS: A total of 58 tissue samples, including 17 PCa lesions and 41 sporadic parathyroid adenomas (PAds), were obtained from 56 primary hyperparathyroidism (pHPT) patients...
February 16, 2018: Endocrine
https://www.readbyqxmd.com/read/29452887/protein-intake-and-long-term-change-in-glomerular-filtration-rate-in-the-jackson-heart-study
#6
Rakesh Malhotra, Loren Lipworth, Kerri L Cavanaugh, Bessie A Young, Katherine L Tucker, Teresa C Carithers, Herman A Taylor, Adolfo Correa, Edmond K Kabagambe, T Alp Ikizler
OBJECTIVE: Dietary protein intake could have deleterious renal effects in populations at risk for chronic kidney disease. Here, we examined whether higher protein intake (≥80th percentile of energy from protein) is associated with decline in kidney function and whether this decline varies by diabetes status. DESIGN: Observational cohort study. SUBJECTS AND SETTINGS: Participants were African-Americans (n = 5,301), who enrolled in the Jackson Heart Study between 2000 and 2004...
February 13, 2018: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/29451907/timber-isoscapes-a-case-study-in-a-mountain-area-in-the-italian-alps
#7
Yuri Gori, Ana Stradiotti, Federica Camin
BACKGROUND: Local timber is still one of the main sources of work and income for mountain communities. However, illegal logging is a major cause of deforestation in many countries and has significant impacts on local communities and biodiversity. Techniques for tracing timber would provide a useful tool to protect local timber industries and contribute to the fight against illegal logging. Although considerable progress has been made in food traceability, timber provenance is still a somewhat neglected research area...
2018: PloS One
https://www.readbyqxmd.com/read/29451708/promotion-of-bone-regeneration-on-titanium-implants-through-a-chemical-treatment-process-using-calcium-phosphate-slurry-microscopic-analysis-cellular-response-and-animal-experiment
#8
Tatsuro Ito, Naofumi Ohtsu, Masanari Tomozawa, Mitsuhiro Hirano, Hiroko Takita, Tadashi Iizuka, Atsuro Yokoyama
The present study provides scientific evidence that a new chemical treatment process using calcium phosphate slurry promotes bone regeneration on titanium (Ti) implants. The material's surface modified by the treatment was analyzed using microscopic observation and the bone regeneration efficacy was evaluated both in vitro and in vivo. Formation of a thin hydroxyapatite layer with a thickness of about 50 nm and an increase of surface roughness were confirmed by microscopic observations. Histological evaluation of rat femora implanted with the specimens showed that the areas of the specimens directly attached to bone tissue were significantly more extensive than those implanted with control Ti at 2 and 8 weeks...
February 16, 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29451353/in-vitro-cytotoxicity-assessment-of-nanodiamond-particles-and-their-osteogenic-potential
#9
Mohamed Ibrahim, Ying Xue, Melanie Ostermann, Alexander Sauter, Doris Steinmueller-Nethl, Sarah Schweeberg, Anke Krueger, Mihaela R Cimpan, Kamal Mustafa
Scaffolds functionalized with nanodiamond particles (nDP) hold great promise with regard to bone tissue formation in animal models. Degradation of the scaffolds over time may leave nDP within the tissues, raising concerns about possible long-term unwanted effects. Human SaOS-2 osteoblast-like cells and U937 monoblastoid cells were exposed to 5 different concentrations (0.002-2 mg/L) of nDP (size range: 2.36 - 4.42 nm) for 24 h. Cell viability was assessed by impedance-based methods. The differential expression of stress and toxicity-related genes was evaluated by PCR super-array, while the expression of selected inflammatory and cell death markers was determined by qPCR...
February 16, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29448842/knockdown-of-nrage-induces-odontogenic-differentiation-by-activating-nf-%C3%AE%C2%BAb-signaling-in-mouse-odontoblast-like-cells
#10
Qi Wu, Jing Li, Pingping Song, Jing Chen, Yuanzhi Xu, Shengcai Qi, Ji Ma, Qiuhui Pan
PURPOSE: Neurotrophin receptor-interacting MAGE homologue (Nrage) plays an important role in bone development and the metabolism of normal skeletal structures. Our previous study showed that Nrage inhibited the odontogenic differentiation of mouse dental pulp cells. However, the potential roles and mechanism of Nrage in regulating odontogenic differentiation are unknown. The aim of this study was to investigate the molecular mechanism of Nrage in odontogenic differentiation of mouse odontoblast-like cells...
February 15, 2018: Connective Tissue Research
https://www.readbyqxmd.com/read/29446565/targeted-surgical-parathyroidectomy-in-end-stage-renal-disease-patients-and-long-term-metabolic-control-a-single-center-experience-in-the-current-era
#11
Tibor Fülöp, Christian A Koch, Abdeen R Farah Musa, Christopher M Clark, Kamel A Gharaibeh, Zsolt Lengvársky, Mehrdad Hamrahian, Karen T Pitman, Mehul P Dixit
BACKGROUND: The long-term results of surgical parathyroidectomy (PTX) in end-stage renal disease (ESRD) patients are less well known in the modern era of newer activated vitamin-D analogs, calcimimetics and intraoperative monitoring of parathyroid hormone (PTH). METHODS: We performed a retrospective chart review of all ESRD patients undergoing PTX at the University of Mississippi Medical Center between January 2005 and August 2011, with follow-up data as available up to 4 years...
February 15, 2018: Hemodialysis International
https://www.readbyqxmd.com/read/29445277/effects-of-silica-gentamicin-nanohybrids-on-osteogenic-differentiation-of-human-osteoblast-like-saos-2-cells
#12
Wei He, Dina A Mosselhy, Yudong Zheng, Qingling Feng, Xiaoning Li, Xing Yang, Lina Yue, Simo-Pekka Hannula
Introduction: In recent years, there has been an increasing interest in silica (SiO 2 ) nanoparticles (NPs) as drug delivery systems. This interest is mainly attributed to the ease of their surface functionalization for drug loading. In orthopedic applications, gentamicin-loaded SiO 2 NPs (nanohybrids) are frequently utilized for their prolonged antibacterial effects. Therefore, the possible adverse effects of SiO 2 -gentamicin nanohybrids on osteogenesis of bone-related cells should be thoroughly investigated to ensure safe applications...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29444683/potential-effects-of-the-combination-of-nicotinamide-vitamin-b2-and-vitamin-c-on-oxidative-mediated-hepatotoxicity-induced-by-thioacetamide
#13
Samir A E Bashandy, Hossam Ebaid, Sherif A Abdelmottaleb Moussa, Ibrahim M Alhazza, Iftekhar Hassan, Abdulaziz Alaamer, Jameel Al Tamimi
BACKGROUND: The liver disease is one of the most important traditional public health problems in Egypt. Oxidative stress is attributed to such pathological condition that further contributes to the initiation and progression of liver injury. In the present study, we have investigated if the strong antioxidant power of Nicotinamide (NA), Vitamin B2 (VB2), and Vitamin C (VC) can ameliorate TAA-induced oxidative stress-mediated liver injury in the rats. METHODS: Thirty-six albino rats were divided into six groups: Control group; TAA group (IP injection with TAA at a dosage of 200 mg/Kg three times a week for two months); TAA + NA group (rats administered with NA at a dosage of 200 mg/kg daily besides TAA as in the control); TAA + VB2 group (rats administered with vitamin B2 at a dosage of 30 mg/kg daily besides injection with TAA); TAA + VC group (rats administered with vitamin C at a dosage of 200 mg/kg daily along with injection of TAA)...
February 14, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29443401/pediatric-intestinal-failure-associated-liver-disease-challenges-in-identifying-clinically-relevant-biomarkers
#14
Kathleen M Gura, Andrew E Mulberg, Paul D Mitchell, John Yap, Clara Y Kim, Minjun Chen, Alexis Potemkin, Mark Puder
BACKGROUND: Intestinal failure-associated liver disease (IFALD) is complex and diagnosed by concurrent use of parenteral nutrition, clinical presentation, and alterations in hepatic biomarkers exclusive of other causes of liver disease. In comparison with individual measures, composite biomarkers may provide a more effective means for assessing disease progression and response to treatment than single parameters. Since IFALD is considered by some to be a type of drug-induced liver injury (DILI), those diagnostic criteria could potentially be used in this population...
February 2018: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29442350/occult-phosphaturic-mesenchymal-tumor-of-femur-cortex-causing-oncogenic-osteomalacia-diagnostic-challenges-and-clinical-outcomes
#15
Deep Dutta, Raghuvansh Kumar Pandey, Rakhee Gogoi, Nagender Solanki, Renu Madan, Anupam Mondal, Shruti Dogra, Pradeep Thapa
BACKGROUND: Tumor induced osteomalacia (TIO) are extremely rare paraneoplastic syndrome with less than 300 reported cases. This report highlights the pitfalls and challenges in diagnosing and localizing TIO in patients with refractory and resistant osteomalacia. PATIENT AND METHODS: 41- year gentleman with 4-year history of musculoskeletal weakness and pathologic fractures presented in wheelchair bound incapacitated state of 1-year duration. Investigations were significant for severe hypophosphatemia, severe phosphaturia, normal serum calcium, reduced 1,25-dihydroxy vitamin-D, elevated ALP, elevated intact parathyroid hormone (iPTH), and pseudo-fractures involving pelvis and bilateral femur...
February 14, 2018: Endokrynologia Polska
https://www.readbyqxmd.com/read/29442020/tnf-%C3%AE-was-involved-in-calcium-hydroxide-promoted-osteogenic-differentiation-of-human-dpscs-through-nf-%C3%AE%C2%BAb-p38mapk-wnt-pathway
#16
Y M Cui, X H Han, Y Y Lin, W W Lv, Y L Wang
It has been reported that calcium hydroxide can induce proliferation, migration, and mineralization in dental pulp stem cells (DPSCs), but the underlying molecular mechanisms are still unclear. In this study, we sought to explore the role of calcium hydroxide in the cell proliferation and directional differentiation of DPSCs and to study the regulatory effect of NF-κB, p38MAPK, and Wnt signaling on differentiation of DPSCs. CCK8 cell assay, Wound Healing Assay, and Alkaline Phosphatase Staining Assay were respectively used to determine the proliferation rate, migration and ALP expression of DPSCs...
June 1, 2017: Die Pharmazie
https://www.readbyqxmd.com/read/29438885/the-positive-effects-of-secreting-cytokines-il-17-and-ifn-%C3%AE-on-the-early-stage-differentiation-and-negative-effects-on-the-calcification-of-primary-osteoblasts-in-vitro
#17
Zhongxiu Wang, Jingyi Tan, Lihong Lei, Weilian Sun, Yanmin Wu, Peihui Ding, Lili Chen
OBJECTIVE: Interleukin-17 (IL-17) and interferon-gamma (IFN-γ) are all pro-inflammatory cytokines produced by specific subsets of T-cells and are also considered crucial regulators in bone remodeling, but their effects on osteogenesis have not been carefully studied. So, this study aimed to investigate the effects of secreting cytokines IL-17 and IFN-γ on the osteogenesis of primary osteoblasts and to clarify the potential roles of the related Janus activated kinase 2 (JAK2) and downstream signal transducer and activator of transcription 3 (STAT3) signaling pathway in bone remodeling...
February 10, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29436839/enhancing-the-spreading-behavior-on-pulmonary-mucus-mimicking-subphase-via-catanionic-surfactant-solutions-towards-effective-drug-delivery-through-the-lungs
#18
Gokce Alp, Nihal Aydogan
Effective and efficient spreading of drug formulations on the pulmonary mucosal layer is key to successful delivery of therapeutics through the lungs. Pulmonary mucus layer, which covers the airway surface, acts as a barrier against therapeutic agents, especially in the case of chronic lung diseases due to increased thickness and viscosity of mucus. Therefore, spreading of the drug formulations on the airways gets harder. Although spreading experiments have been conducted with different types of formulations on mucus-mimicking subphases, a highly effective formulation is yet to be discovered...
February 13, 2018: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29436669/effect-of-recombinant-vascular-endothelial-growth-factor-and-translationally-controlled-tumor-protein-on-2%C3%A2-hydroxyethyl-methacrylate%C3%A2-treated-pulp-cells
#19
Chunyanut Wongkhum, Wilaiwan Chotigeat, Ureporn Kedjarune-Leggat
Vascular endothelial growth factor (VEGF)-A is a potential signaling protein that may promote angiogenesis. VEGF also helps cells survive in stressfull or hazardous conditions. The present study aimed to compare the effect of VEGF with translationally controlled tumor protein (TCTP), an anti‑apoptotic protein in human dental pulp cells (HDPCs), following exposure to 2‑hydroxyethyl methacrylate (HEMA), which is a major residual monomer from resin restorative dental materials. Cell viability, alkaline phosphatase (ALP) activity, mineralization and gene expressions for odontogenic and osteogenic differentiation markers of HDPCs were investigated, following exposure to HEMA and in combination with TCTP and VEGF...
February 12, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29436658/effect-of-garlic-on-rats-with-chronic-intermittent-hypoxia-combined-with-diabetes-mellitus
#20
Yinglan Peng, Ke Hu
The present study investigated the effect of garlic (G) on serum, liver, renal and cerebral parameters of rats with chronic intermittent hypoxia (CIH) combined with diabetes mellitus (DM). A total of 32 rats were divided into eight groups, with 4 rats/group. A total of three models were established, including CIH, DM and CIH‑DM, and an additional healthy control (C) group. Rats in C‑G, CIH‑G, DM‑G and CIH‑DM‑G groups were injected with a G extract daily. Serum, liver, renal and cerebral parameters were detected...
February 7, 2018: Molecular Medicine Reports
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