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https://www.readbyqxmd.com/read/27913572/very-low-density-lipoprotein-vldl-induced-signals-mediating-aldosterone-production
#1
Ying-Ying Tsai, William E Rainey, Wendy B Bollag
Aldosterone, secreted by the adrenal zona glomerulosa, enhances sodium retention, thus increasing blood volume and pressure. Excessive production of aldosterone results in high blood pressure, and contributes to cardiovascular and renal disease, stroke, and visual loss. Hypertension is also associated with obesity, which s correlated with other serious health risks as well. Although weight gain is associated with increased blood pressure, the mechanism by which excess fat deposits increase blood pressure remains unclear...
December 2, 2016: Journal of Endocrinology
https://www.readbyqxmd.com/read/27913210/trpv4-activation-of-endothelial-nitric-oxide-synthase-resists-nonalcoholic-fatty-liver-disease-by-blocking-cyp2e1-mediated-redox-toxicity
#2
Ratanesh K Seth, Suvarthi Das, Diptadip Dattaroy, Varun Chandrashekaran, Firas Alhasson, Gregory Michelotti, Mitzi Nagarkatti, Prakash Nagarkatti, Anna Mae Diehl, Darwin P Bell, Wolfgang Liedtke, Saurabh Chatterjee
NAFLD is a clinically progressive disease with steatosis, inflammation, endothelial dysfunction and fibrosis being the stages where clinical intervention becomes necessary. Lack of early biomarkers and absence of a FDA approved drug obstructs efforts for effective treatment. NAFLD progression is strongly linked to a balance between liver injury, tissue regeneration and the functioning of endogenous defense mechanisms. The failure of the defense pathways to resist the tissue damage arising from redox stress, one of the "multiple hits" in disease progression, give rise to heightened inflammation and occasional fibrosis...
November 29, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27890540/association-of-plasma-calcium-concentrations-with-alcohol-craving-new-data-on-potential-pathways
#3
Rilana Schuster, Anne Koopmann, Martin Grosshans, Iris Reinhard, Rainer Spanagel, Falk Kiefer
Recently, calcium was suggested to be the active moiety of acamprosate. We examined plasma calcium concentrations in association with severity of alcohol dependence and its interaction with regulating pathways and alcohol craving in alcohol-dependent patients. 47 inpatient alcohol-dependent patients undergoing detoxification treatment underwent laboratory testing, including calcium, sodium, liver enzymes as well as serum concentrations of calcitonin, parathyroid hormone and vitamin D. The psychometric dimension of craving was analyzed with the Obsessive Compulsive Drinking Scale (OCDS)...
November 24, 2016: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27889102/analysis-of-gene-expression-and-regulation-implicates-c2h9orf152-has-an-important-role-in-calcium-metabolism-and-chicken-reproduction
#4
Long Liu, Yanfeng Fan, Zhenhe Zhang, Chan Yang, Tuoyu Geng, Daoqing Gong, Zhuocheng Hou, Zhonghua Ning
The reproductive system of a female bird is responsible for egg production. The genes highly expressed in oviduct are potentially important. From RNA-seq analysis, C2H9orf152 (an orthologous gene of human C9orf152) was identified as highly expressed in chicken uterus. To infer its function, we obtained and characterized its complete cDNA sequence, determined its spatiotemporal expression, and probed its transcription factor(s) through pharmaceutical approach. Data showed that the complete cDNA sequence was 1468bp long with a 789bp of open reading frame...
November 11, 2016: Animal Reproduction Science
https://www.readbyqxmd.com/read/27886086/ligustrazine-oleanolic-acid-glycine-derivative-g-toa-selectively-inhibited-the-proliferation-and-induced-apoptosis-of-activated-hsc-t6-cells
#5
Siling Bi, Fuhao Chu, Mina Wang, Bi Li, Pei Mao, Huazheng Zhang, Penglong Wang, Wenbo Guo, Liang Xu, Liwei Ren, Haimin Lei, Yuzhong Zhang
Hepatic fibrosis is a naturally occurring wound-healing reaction, with an imbalance of extracellular matrix (ECM) during tissue repair response, which can further deteriorate to hepatocellular carcinoma without timely treatment. Inhibiting activated hepatic stellate cell (HSC) proliferation and inducing apoptosis are the main methods for the treatment of liver fibrosis. In our previous study, we found that the TOA-glycine derivative (G-TOA) had exhibited more significant inhibitory activity against HepG2 cells and better hydrophilicity than TOA, ligustrazine (TMP), and oleanolic acid (OA)...
November 23, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27882229/risk-factors-for-osteoporosis-in-patients-with-end-stage-liver-disease
#6
Shinjiro Uchida, Hisamitsu Miyaaki, Tatsuki Ichikawa, Naota Taura, Satoshi Miuma, Takuya Honda, Hidetaka Shibata, Masafumi Haraguchi, Takemasa Senoo, Kazuhiko Nakao
Patients with end-stage liver disease (ESLD) were evaluated and their clinical features were compared with the aim of identifying risk factors for osteoporosis. Seventy-nine patients with ESLD were enrolled in the current study. Bone mineral density (BMD) was assessed by dual-energy X-ray absorptiometry and compared with clinical features in patients with ESLD. BMD was identified to be significantly correlated with body mass index (r=0.430; P=0.001) and inversely correlated with total bile acid (r=-0.228; P=0...
November 2016: Biomedical Reports
https://www.readbyqxmd.com/read/27881436/knockdown-of-histidine-rich-calcium-binding-protein-hrc-suppresses-liver-fibrosis-by-inhibiting-the-activation-of-hepatic-stellate-cells
#7
Jingmei Liu, Mengke Li, Jin Gong, Ping Han, Yunwu Wang, Dean Tian, Jiazhi Liao
The histidine-rich calcium binding protein (HRC) is a regulator of Ca(2+)- homeostasis and it plays a significant role in hepatocellular carcinoma (HCC) progression. However, the relationship between HRC and liver fibrogenesis is still unknown. Our data demonstrated that HRC was upregulated in fibrotic liver and activated HSCs. TGF-β treatment increased α-SMA and HRC expression dose-dependently in HSCs. Repression of HRC reduced α-SMA, CTGF and collagens expression, and inhibited HSCs proliferation and migration...
November 23, 2016: Biology Open
https://www.readbyqxmd.com/read/27876139/conversations-between-insulin-and-bone-potential-mechanism-of-high-bone-density-in-patients-with-berardinelli-seip-congenital-lipodystrophy
#8
Josivan Gomes Lima, Natalia Nobrega Lima, Lucia Helena C Nobrega, Selma Maria B Jeronimo
Berardinelli-Seip Congenital Lipodystrophy (BSCL) is a rare autosomal recessive syndrome characterized by a difficulty storing lipid in adipocytes, low body fat, hypertriglyceridemia, and fat liver. The serum leptin is usually very low, and serum insulin, as well as HOMAIR (homeostasis model assessment), is very high and correlated positively with bone mineral density (BMD). Despite deficiency/insufficiency of vitamin D, low body mass index, low daily calcium intake, physical inactivity, and menarche at a later age, BSCL patients usually have normal or even high BMD...
December 2016: Medical Hypotheses
https://www.readbyqxmd.com/read/27875417/the-utility-of-routinely-obtaining-postoperative-laboratory-studies-following-a-minimally-invasive-transforaminal-lumbar-interbody-fusion
#9
Junyoung Ahn, Dustin H Massel, Benjamin C Mayo, Fady Y Hijji, Ankur S Narain, Khaled Aboushaala, Daniel D Bohl, Islam M Elboghdady, Jacob V DiBattista, Kern Singh
STUDY DESIGN: This is a retrospective analysis. OBJECTIVE: To test the hypothesis that there is limited utility in routinely obtaining postoperative laboratory values following minimally invasive transforaminal lumbar interbody fusion (MIS TLIF). BACKGROUND DATA: At many institutions, it is routine to obtain a complete blood count and basic metabolic profile (BMP) following a MIS TLIF. However, the utility of this practice has not been well characterized...
November 21, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27873072/cinacalcet-hydrochloride-relieves-hypercalcemia-in-japanese-patients-with-parathyroid-cancer-and-intractable-primary-hyperparathyroidism
#10
Yasuhiro Takeuchi, Shunsuke Takahashi, Daishu Miura, Makoto Katagiri, Noriaki Nakashima, Hiroko Ohishi, Ryutaro Shimazaki, Yoshihiro Tominaga
Pharmacological treatment of hypercalcemia is essential for patients with parathyroid carcinoma and intractable primary hyperparathyroidism (PHPT). Use of the calcimimetic cinacalcet hydrochloride (cinacalcet) is an option to treat such patients. We investigated the efficacy and safety of cinacalcet in Japanese patients with parathyroid carcinoma and intractable PHPT. Five Japanese patients with parathyroid carcinoma and two with intractable PHPT were enrolled in an open-label, single-arm study consisting of titration and maintenance phases...
November 21, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27872411/osteoporosis-in-pediatric-liver-transplantation
#11
Walid Faraj, Ghina El Nounou, Abdallah Abou Al Naaj, Nancy Nakhoul, Ali Haydar, Mohammad Khalife
Liver transplantation provides an important, often life-saving treatment for end-stage liver disease. Osteoporosis post-liver transplantation has been described in adults; however, this has not been described in the pediatric population to date. We present a case of a 13-year-old female patient who underwent an orthotopic liver transplant for cryptogenic liver cirrhosis. Her immunosuppressants were tacrolimus and prednisone. Four months posttransplant, she started complaining of bilateral lower limb pain and limping while walking, progressing to a point where she was almost immobile...
December 2016: Progress in Transplantation
https://www.readbyqxmd.com/read/27868128/the-role-of-stim1-in-the-cr-vi-induced-ca-2-i-increase-and-cell-injury-in-l-02-hepatocytes
#12
Xing Yi, Yujing Zhang, Caigao Zhong, Xiali Zhong, Fang Xiao
Hexavalent chromium [Cr(vi)] is a potent cytotoxin and carcinogen. In recent years, drinking water contamination with Cr(vi) has become a worldwide problem of significant public health importance, thus much attention has been paid to the investigation of Cr(vi)-induced hepatotoxicity. The concentration of intracellular calcium ions ([Ca(2+)]i) was found to be increased after Cr(vi) exposure, but the exact underlying mechanisms involved in the Ca(2+) homeostasis imbalance remain poorly characterized. In the present study, by utilizing the antagonist of store-operated calcium channels (SOCCs) 2-aminoethoxydiphenyl borate (2-APB), small interfering RNA against stromal interaction molecule 1 (si-STIM1) and antioxidant N-acetylcysteine (NAC), we found that Cr(vi) induces [Ca(2+)]i increase, cell viability loss and transaminase (AST/ALT) leakage, and that these could be suppressed by both 2-APB and si-STIM1...
November 21, 2016: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/27859881/towards-understanding-the-distribution-and-tumor-targeting-of-sericin-regulated-spherical-calcium-phosphate-nanoparticles
#13
Ruibo Zhao, Xiaoyuan Ren, Chungang Xie, Xiangdong Kong
The study of calcium phosphate (CaP) nanoparticles in vivo is still incomplete, which has limited their applications for biomedical delivery. Herein, we synthesized amorphous spherical calcium phosphate (S-CaP) nanoparticles with an average size of 80 nm via a co-precipitation method in the presence of silk sericin as the regulation template. S-CaP was labeled by the near-infrared dye reagent DiR, and then, the labeled nanoparticles (S-CaP@DiR) were used to investigate the distribution and degradation in healthy mice by IVIS and TEM...
November 17, 2016: Microscopy Research and Technique
https://www.readbyqxmd.com/read/27851786/calcium-reduces-liver-injury-in-mice-on-a-high-fat-diet-alterations-in-microbial-and-bile-acid-profiles
#14
Muhammad Nadeem Aslam, Christine M Bassis, Li Zhang, Sameer Zaidi, James Varani, Ingrid L Bergin
A high-fat "Western-style" diet (HFWD) promotes obesity-related conditions including non-alcoholic steatohepatitis (NASH), the histologic manifestation of non-alcoholic fatty liver disease (NAFLD). In addition to high saturated fat and processed carbohydrates, the typical HFWD is deficient in calcium. Calcium-deficiency is an independent risk factor for many conditions associated with the Western-style diet. However, calcium has not been widely evaluated in the context of NAFLD. The goal of the present study was to determine if dietary calcium supplementation could protect mice fed a HFWD from NAFLD, specifically by decreasing non-alcoholic steatohepatitis (NASH) and its down-stream consequences...
2016: PloS One
https://www.readbyqxmd.com/read/27848069/adenosine-receptors-regulatory-players-in-the-preservation-of-mitochondrial-function-induced-by-ischemic-preconditioning-of-rat-liver
#15
Filipe V Duarte, João A Amorim, Ana T Varela, João S Teodoro, Ana P Gomes, Rodrigo A Cunha, Carlos M Palmeira, Anabela P Rolo
Although adenosine A1 receptors (A1R) have been associated to ischemic preconditioning (IPC), direct evidence for their ability to preserve mitochondrial function upon hepatic preconditioning is still missing and could represent a novel strategy to boost the quality of liver transplants. We tested if the A1R antagonist 8-cyclopentyl-1,3-dipropylxanthine (DPCPX) prevented IPC in the liver and if the A1R agonist 2-chloro-N(6)-cyclopentyladenosine (CCPA) might afford a pharmacological preconditioning. Livers underwent a 120 min of 70% warm ischemia and 16 h of reperfusion (I/R), and the IPC group underwent a 5-min ischemic episode followed by a 10-min period of reperfusion before I/R...
November 15, 2016: Purinergic Signalling
https://www.readbyqxmd.com/read/27847477/reverse-of-acute-and-chronic-morphine-tolerance-by-lithocholic-acid-via-down-regulating-ugt2b7
#16
Zizhao Yang, Li Li, Haihong Hu, Mingcheng Xu, Jingkai Gu, Zaijie Jim Wang, Lushan Yu, Su Zeng
Lithocholic acid (LCA) deposited in human livers always induces drastic pains which need analgesic drug, like morphine to release. Our research showed that LCA can effectively inhibit uridine 5'-diphospho-glucuronosyltransferase 2B7 (UGT2B7) in morphine tolerance-like human normal liver cells, HL-7702, then increase μ-opioid receptor (MOR) and calcium-calmodulin dependent protein kinase IIα (CaMKIIα) expression. In vivo assay, UGT2B7 was significantly repressed in the livers of acute or chronic morphine tolerance mice pretreated with LCA (10, 50, and 100 mg/kg, p...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27846145/risk-factors-of-hyperglycemia-in-patients-after-a-first-episode-of-acute-pancreatitis-a-retrospective-cohort
#17
Lin Yuan, Mengdie Tang, Lin Huang, Yi Gao, Xueliang Li
OBJECTIVES: The aim of this study was to evaluate the risk factors for hyperglycemia development after a first episode of acute pancreatitis (AP). METHODS: Three hundred and ten patients treated for AP were retrospectively evaluated. Hyperglycemia was determined by fasting blood glucose. All data were collected from the medical records room database and a follow-up telephone call. RESULTS: The incidence rate of hyperglycemia was obviously increased 5 years after the event...
November 11, 2016: Pancreas
https://www.readbyqxmd.com/read/27844104/primary-hyperoxaluria-spectrum-of-clinical-and-imaging-findings
#18
Sara B Strauss, Temima Waltuch, William Bivin, Frederick Kaskel, Terry L Levin
Primary hyperoxaluria is a rare autosomal recessive inborn error of metabolism with three known subtypes. In primary hyperoxaluria type 1, the most common of the subtypes, a deficiency in the hepatic enzymes responsible for the metabolism of glycoxylate to glycine, leads to excessive levels of glyoxylate, which is converted to oxalate. The resultant elevation in serum and urinary oxalate that characterizes primary hyperoxaluria leads to calcium oxalate crystal deposition in multiple organ systems (oxalosis)...
November 14, 2016: Pediatric Radiology
https://www.readbyqxmd.com/read/27831902/local-and-transient-gene-expression-primes-the-liver-to-resist-cancer-metastasis
#19
Tyler J Goodwin, Yingqiu Zhou, Sara N Musetti, Rihe Liu, Leaf Huang
The liver is the primary site of metastasis for gastrointestinal cancers and is a location highly susceptible to the establishment of metastasis in numerous other primary cancers, including breast, lung, and pancreatic cancers. The current standard of care typically consists of primary tumor resection and systemic administration of potent but toxic chemotherapeutics, yielding a minimal improvement in the median survival rate. CXCL12, a chemokine, is a key factor for activating the migration/survival pathways of CXCR4(+) cancer cells and for recruiting immunosuppressive cells to areas of inflammation...
November 9, 2016: Science Translational Medicine
https://www.readbyqxmd.com/read/27829805/effect-of-amlodipine-lisinopril-and-allopurinol-on-acetaminophen-induced-hepatotoxicity-in-rats
#20
Nesreen E M Mohammed, Basim A S Messiha, Ali A Abo-Saif
BACKGROUND: Exposure to chemotherapeutic agents such as acetaminophen may lead to serious liver injury. Calcium deregulation, angiotensin II production and xanthine oxidase activity are suggested to play mechanistic roles in such injury. OBJECTIVE: This study evaluates the possible protective effects of the calcium channel blocker amlodipine, the angiotensin converting enzyme inhibitor lisinopril, and the xanthine oxidase inhibitor allopurinol against experimental acetaminophen-induced hepatotoxicity, aiming to understand its underlying hepatotoxic mechanisms...
November 2016: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
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