Displaying publications 881 - 900 of 1377 in total

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  1. Tiash S, Chowdhury ME
    Curr Pharm Des, 2016;22(37):5752-5759.
    PMID: 26864311
    Despite being widely used for treating cancer, chemotherapy is accompanied by numerous adverse effects as a result of systemic distribution and nonspecific interactions of the drugs with healthy tissues, eventually leading to therapeutic inefficacy and chemoresistance. Cyclophosphamide (Cyp) as one of the chemotherapeutic pro-drugs is activated in liver and used to treat breast cancer in high dose and in combination with other drugs. In an attempt to reduce the off-target effects and enhance the therapeutic efficacy, pH-sensitive carbonate apatite nanoparticles that had predominantly and size-dependently been localized in liver following intravenous administration, were employed to electrostatically immobilize Cyp and purposely deliver it to the liver for activation. Cyp-loaded particles formed by simple 30 min incubation at 37ºC of the DMEM (pH 7.4) medium containing CaCl2 and Cyp, enhanced in vitro cytotoxicity at different degrees depending on the cell types. The size of the particles could be tightly controlled by the amount of CaCl2 required to prepare the particles and thus the bio-distribution pattern inside different organs of the body. Unlike the small particles (~ 200 nm), the large size particles (~ 600 nm) which were more efficiently accumulated in liver, significantly reduced the tumor volume following intravenous injection in 4T1-induced murine breast cancer model at a very low dose (0.17 mg/Kg) of the drug initially added for complex formation, thus shedding light on the potential applications of the Cyp-loaded nano-formulations in the treatment of breast cancer.
    Matched MeSH terms: Liver/metabolism; Liver/chemistry*
  2. Cheong AM, Jessica Koh JX, Patrick NO, Tan CP, Nyam KL
    J Food Sci, 2018 Mar;83(3):854-863.
    PMID: 29412455 DOI: 10.1111/1750-3841.14038
    This study aimed to evaluate the effect of kenaf seed oil (KSO), kenaf seed oil-in-water macroemulsion (KSOM), kenaf seed oil-in-water nanoemulsions (KSON), and emulsifier mixtures (EM) on serum lipid profile, liver oxidative status, and histopathological changes in high-cholesterol fed rats. Stability and characteristic of KSOM and KSON were carried out prior to in vivo study. Forty-two Sprague-Dawley rats were divided into 7 groups (6 rats each) and induced hypercholesterolemia by feeding high cholesterol diet (HCD) for 14 days prior to treatments. Different treatments were introduced on day 15 to 29 while supplemented with HCD and removal of HCD during treatment on day 30 to 43, except for HCD group. Body weight and serum lipid profiles were measured at 3 different points: after hypercholesterolemia was induced, on day 29, and at the end of the experiment. Relative liver weight, atherogenic index, coronary risk index, and fecal total bile acids were also determined at the end of experiment. KSON showed significantly higher stability than KSOM and FTIR exhibited good encapsulation of KSO after 1.5 years of storage. Serum total cholesterol, low density lipoprotein cholesterol, lipid peroxidation levels in HCD group without treatment were significantly higher compared to normal control group and all treatment groups. All samples demonstrated hypocholesterolemic effect, but KSON exhibited higher efficiency in cholesterol-lowering properties, weight control and decreased liver fat as confirmed by histopathological evaluation. The overall results revealed that the efficacy of different treatments was in descending order of KSON, KSO, KSOM, and EM.

    PRACTICAL APPLICATION: Kenaf seed oil-in-water nanoemulsion (KSON) has the potential to be used as a natural alternative to the synthetic hypocholesterolemic drug in the future. However, larger sample size and clinical trial are needed to confirm on this potential application. In addition, treatment with KSON was suggested to prevent cardiovascular disease and fatty liver.

    Matched MeSH terms: Liver/drug effects; Liver/metabolism
  3. Marzuki OA, Fauzi AR, Ayoub S, Kamarul Imran M
    Singapore Med J, 2008 Sep;49(9):688-93.
    PMID: 18830542
    Tuberculosis (TB) affects one-third of the world's population. Anti-TB drugs with isoniazid, rifampicin and pyrazinamide are very effective but they can cause hepatotoxicity. Many risk factors have been recognised. Data on prevalence of anti-TB drug-induced hepatitis as well as the contributing risk factors are scarce in Malaysia. This observational case control study was designed to look at the prevalence and the risk factors of drug-induced hepatitis in our population.
    Matched MeSH terms: Drug-Induced Liver Injury/diagnosis*; Drug-Induced Liver Injury/epidemiology*
  4. Abduljaleel SA, Shuhaimi-Othman M
    Pak J Biol Sci, 2013 Nov 15;16(22):1551-6.
    PMID: 24511699
    The influence of dietary cadmium on the accumulation and effects of dietary lead, examined in chicken. This experiment was conducted to investigate the toxic effects of dietary Cd and Pb on chick's body weight and organ, content of the tissues of these two metals was also detected. One day age chicks of Gallus gallus domesticus fed diet supplemented with 25, 50, 100 ppm of Cd, second group exposure to 300, 500, 1000 ppm of Pb in feed daily during 4 weeks. The control groups were fed without supplementation of metals. The concentrations of Cd and Pb resulted in increased of Cd and Pb content in liver, gizzard and muscle. While Cd 100 ppm and Pb 1000 ppm were increased metals content in feather. Body weight of chicks was not influenced by Cd treatment. In contrary Pb treatment was significantly (p < 0.05) decreased body weight of chicks after dietary treatment. On the other hand, Liver weigh in chicks was significantly (p < 0.05) decreased after Cd and Pb treatments.
    Matched MeSH terms: Liver/drug effects; Liver/metabolism
  5. Lim JCW, Sagineedu SR, Yong ACH, Sidik SM, Wong WSF, Stanslas J
    Naunyn Schmiedebergs Arch Pharmacol, 2021 Jan;394(1):95-105.
    PMID: 32840650 DOI: 10.1007/s00210-020-01966-3
    SRS27, an andrographolide analogue, had been proven to have therapeutic properties at a dose of 3 mg/kg in both in vitro and in vivo asthma models of our previous study. The present study focuses on the pharmacokinetic and toxicity profile of this compound to provide further evidence for the development of this compound as an anti-asthma agent. A simple pharmacokinetic study was performed in female BALB/c mice to measure blood plasma concentration of the compound at therapeutic dose. At a single dose of 3 mg/kg, SRS27 had a relatively short half-life but was able to achieve a concentration range of 13-19 μM that is related to its in vitro bioactivities. With regard to toxicity profile, SRS27 appears to be safe, as no histopathological changes were observed in the liver, kidneys and ovaries of SRS27-treated female BALB/c mice. In addition, there was no significant change in the mean body weight and organ weight of the animals in the SRS27-treated groups compared with the vehicle-treated control group at the end of the treatment. This fully supports the absence of any significant changes in peripheral blood leukocyte counts of SRS27-treated mice. Rewardingly, this acute toxicity study also revealed that SRS27 has a wide therapeutic window as no toxicity symptoms were detected with a dose up to 60 mg/kg daily when tested for 14 days. These results provide strong justification for further investigation of SRS27 as a potential new anti-asthma agent.
    Matched MeSH terms: Liver/anatomy & histology; Liver/drug effects
  6. Duarte-Salles T, Misra S, Stepien M, Plymoth A, Muller D, Overvad K, et al.
    Cancer Prev Res (Phila), 2016 Sep;9(9):758-65.
    PMID: 27339170 DOI: 10.1158/1940-6207.CAPR-15-0434
    We previously identified osteopontin (OPN) as a promising marker for the early detection of hepatocellular carcinoma (HCC). In this study, we investigated the association between prediagnostic circulating OPN levels and HCC incidence in a large population-based cohort. A nested case-control study was conducted within the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. During a mean follow-up of 4.8 years, 100 HCC cases were identified. Each case was matched to two controls and OPN levels were measured in baseline plasma samples. Viral hepatitis, liver function, and α-fetoprotein (AFP) tests were also conducted. Conditional logistic regression models were used to calculate multivariable odds ratio (OR) and 95% confidence intervals (95% CI) for OPN levels in relation to HCC. Receiver operating characteristics curves were constructed to determine the discriminatory accuracy of OPN alone or in combination with other liver biomarkers in the prediction of HCC. OPN levels were positively associated with HCC risk (per 10% increment, ORmultivariable = 1.30; 95% CI, 1.14-1.48). The association was stronger among cases diagnosed within 2 years of follow-up. Adding liver function tests to OPN improved the discriminatory performance for subjects who developed HCC (AUC = 0.86). For cases diagnosed within 2 years, the combination of OPN and AFP was best able to predict HCC risk (AUC = 0.88). The best predictive model for HCC in this low-risk population is OPN in combination with liver function tests. Within 2 years of diagnosis, the combination of OPN and AFP best predicted HCC development, suggesting that measuring OPN and AFP could identify high-risk groups independently of a liver disease diagnosis. Cancer Prev Res; 9(9); 758-65. ©2016 AACR.
    Matched MeSH terms: Liver Neoplasms/blood*; Liver Neoplasms/epidemiology
  7. Qin H, Tang G, Yi P, Pan X, Huang H, Chang R, et al.
    Saudi Pharm J, 2016 May;24(3):265-72.
    PMID: 27275113 DOI: 10.1016/j.jsps.2016.04.015
    The present study aimed to establish a genus-specific PCR-based assay to detect helicobacters using 16S rRNA gene as the target template. We designed the hemi-nested primers based on sequences of 16S rRNA gene of 34 types of Helicobacter species. The inclusivity, sensitivity, and specificity of the PCR assay using these primers were examined in three different models, comprising feces simulated samples, BLAB/c mice infection model and clinic patients samples. The detection sensitivity of Helicobacter pylori, Helicobacter hepaticus and Helicobacter bilis strains from feces simulated samples was all 102 CFU/ml. We successfully detected H. hepaticus and H. bilis in the liver, cecum and feces of experimentally infected mice. H. pylori was successfully detected in the feces samples from 3 patients infected with H. pylori while not in the feces samples from 3 healthy human. However, the C97/C05-C97/C98 PCR assay detected H. pylori in the 2 positive samples. Due to the PCR assay's excellent inclusivity, high sensitivity and specificity it may be used to detect the presence of Helicobacters.
    Matched MeSH terms: Liver
  8. Atangwho IJ, Yin KB, Umar MI, Ahmad M, Asmawi MZ
    PMID: 25358757 DOI: 10.1186/1472-6882-14-426
    This study evaluated the impact of Vernonia amygdalina (VA) on the transcription of key enzymes involved in cellular modulation of glucose in streptozotocin-induced diabetic rats in a bid to understand the possible anti-diabetic mechanism of VA.
    Matched MeSH terms: Liver/drug effects*; Liver/enzymology; Liver/metabolism
  9. Sthaneshwar P, Vethakkan SR, Wong CW
    Med J Malaysia, 2014 Aug;69(4):175-7.
    PMID: 25500845 MyJurnal
    INTRODUCTION: Glycohemoglobin (HbA1c) most accurately reflects the previous two to three months of glycaemic control. HbA1c should be measured regularly in all patients with diabetes, and values should be maintained below 7% to prevent the risk of chronic complications. Apart from the genetic variants of haemoglobins many other conditions also known to affect HbA1c measurements. In this study we evaluated the conditions that cause low HbA1c results.

    METHODS AND MATERIALS: The data was collected retrospectively HbA1c was measured in our laboratory by Biorad Variant II turbo 2.0. The method is based on chromatographic separation of HbA1c on a cation exchange cartridge. This method has been certified by National Glycohemoglobin Standardization Programme (NGSP). 58437 requests were received in a period of one year (January to December 2011). Medical records were reviewed to identify the conditions that might be associated with these low values.

    RESULTS: Among 58437 samples analysed, 53 patients had HbA1c levels < 4.0%. Fourteen patients had haemoglobinopathy. In 34 patients without Hb variants had conditions such as chronic liver disease, chronic kidney disease, haemolytic anaemia, pregnancy, and anaemia of chronic disease. Five non-pregnant individuals who were screened for diabetes mellitus had HbA1c levels < 4%.

    CONCLUSION: Our study underscores the importance of that both laboratories and the physicians should be aware of the factors that can influence the HbA1c results. The haematological status should be taken into consideration for proper interpretation of HbA1c results.
    Matched MeSH terms: Liver Diseases
  10. Abu Bakar MF, Mohamed M, Rahmat A, Burr SA, Fry JR
    Food Chem, 2013 Jan 1;136(1):18-25.
    PMID: 23017387 DOI: 10.1016/j.foodchem.2012.07.099
    This study was conducted to investigate the potential of bambangan (Mangifera pajang) fruit extracts in the protection against oxidative damage caused by tert-butyl hydroperoxide in the human hepatocellular HepG2 cell line. Proteins which might be involved in the cytoprotective mechanism were investigated using western blotting technique. Quercetin was used as a positive control. The results showed that only the kernel extract of M. pajang and quercetin displayed cytoprotective activity in HepG2 cells, with EC(50) values of 1.2 and 5.3μg/ml, respectively. Expression of quinone reductase, glutathione reductase and methionine sulfoxide reductase A proteins were significantly up-regulated by quercetin, suggesting their involvement in the cytoprotective activity of quercetin. However, expressions of only glutathione reductase and methionine sulfoxide reductase A proteins were significantly up-regulated by the kernel extract, again suggesting their involvement in the cytoprotective activity of bambangan kernel extract. Future study is needed to investigate the involvement of other cytoprotective proteins in the cytoprotection mechanism.
    Matched MeSH terms: Liver Neoplasms/enzymology*; Liver Neoplasms/genetics; Liver Neoplasms/metabolism
  11. Qi Qi C, Ajit Singh V
    BMJ Case Rep, 2012;2012.
    PMID: 22892228 DOI: 10.1136/bcr.01.2012.5518
    The authors present an interesting case under our follow-up who has had five different forms of tumours with different pathologies throughout his lifetime. He started off with hepatoma, followed by pleomorphic sarcoma of the thigh, adenocarcinoma of the prostate, meningioma and finally schwanoma. He is still alive to this date.
    Matched MeSH terms: Liver Neoplasms/diagnosis; Liver Neoplasms/pathology*; Liver Neoplasms/therapy
  12. Lee CY
    Obes Res Clin Pract, 2012 Jan-Mar;6(1):e1-e90.
    PMID: 24331176 DOI: 10.1016/j.orcp.2011.05.002
    Quercetin and adenosine are natural antioxidants separately claimed to improve metabolic syndrome parameters. The effect of this combination (QA) was examined in high fat diet-fed mice. Results showed that growth and blood parameters, as observed for quercetin-treated mice, were not significantly different from the control. Adenosine alone caused hyperglycemia and reduced plasma adiponectin. QA feeding led to increased adiposity and circulatory insulin, and concomitantly down-regulated liver eNOS and LFABP expressions. This showed that interaction occurred between quercetin and adenosine, and combined ingestion may lead to insulin resistance, while adenosine does not prevent the development of metabolic syndrome.:
    Matched MeSH terms: Liver
  13. Koh PH, Mokhtar RA, Iqbal M
    Hum Exp Toxicol, 2012 Jan;31(1):81-91.
    PMID: 21508074 DOI: 10.1177/0960327111407226
    This study was aimed to evaluate the effect of Cymbopogon citratus against carbon tetrachloride (CCl(4))-mediated hepatic oxidative damage in rats. Rats were administrated with C. citratus extract (100, 200 and 300 mg/kg b.w.) for 14 days before the challenge of CCl(4) (1.2 ml/kg b.w. p.o) on 13th and 14th days. Hepatic damage was evaluated by employing serum biochemical parameters (alanine aminotransferase-ALT, aspartate aminotransferase-AST and lactate dehydrogenase-LDH), malondialdehye (MDA) level, reduced GSH and antioxidant enzymes (catalase: CAT, glutathione peroxidase: GPX, quinone reductase: QR, glutathione S-transferase: GST, glutathione reductase: GR, glucose-6-phosphate dehyrogenase: G6PD). In addition, CCl(4)-mediated hepatic damage was further evaluated by histopathological examination. However, most of these changes were alleviated by prophylactic treatment of animals with C. citratus dose dependently (p < 0.05). The protection was further evident through decreased histopathological alterations in liver. The results of the present study indicated that the hepatoprotective effect of C. citratus might be ascribable to its antioxidant and free radical scavenging property.
    Matched MeSH terms: Drug-Induced Liver Injury/drug therapy*; Drug-Induced Liver Injury/metabolism; Drug-Induced Liver Injury/pathology
  14. Qua CS, Goh KL
    J Gastroenterol Hepatol, 2011 Aug;26(8):1333-7.
    PMID: 21443669 DOI: 10.1111/j.1440-1746.2011.06732.x
    To determine the etiology of liver cirrhosis and risk factors for hepatocellular carcinoma (HCC) in a multiracial Asian population.
    Matched MeSH terms: Liver Cirrhosis/ethnology*; Liver Neoplasms/ethnology*
  15. Chin CY, Monack DM, Nathan S
    BMC Genomics, 2010;11:672.
    PMID: 21110886 DOI: 10.1186/1471-2164-11-672
    At present, very little is known about how Burkholderia pseudomallei (B. pseudomallei) interacts with its host to elicit melioidosis symptoms. We established a murine acute-phase melioidosis model and used DNA microarray technology to investigate the global host/pathogen interaction. We compared the transcriptome of infected liver and spleen with uninfected tissues over an infection period of 42 hr to identify genes whose expression is altered in response to an acute infection.
    Matched MeSH terms: Liver/immunology; Liver/microbiology; Liver/pathology
  16. Lee WS, Chai PF, Looi LM
    Med J Malaysia, 2009 Sep;64(3):216-9.
    PMID: 20527271
    Progressive familial intrahepatic cholestasis (PFIC) is characterized by early onset cholestasis, progressive liver cirrhosis, pruritus, poor growth and inexorable progression to liver cirrhosis in early childhood. The serum level of gamma-glutamyl transferase is low or normal, which is discordant with severe cholestasis. Five Malaysian patients with PFIC, who all had typical features of PFIC with early onset of severe and progressive cholestasis, pruritus, cirrhosis and liver failure, were described. Three patients died as a result of the disease, while another one died due to post-liver transplant complication. The only survivor has compensated liver cirrhosis. Patients with severe cholestasis but has spuriously low yGT should be suspected of having PFIC. Liver transplant, which is life-saving in a majority of patients with PFIC, should be considered in all patients with PFIC.
    Matched MeSH terms: Liver Function Tests
  17. Zyoud SH, Awang R, Sulaiman SA, Al-Jabi SW
    Pharmacoepidemiol Drug Saf, 2010 May;19(5):511-7.
    PMID: 20333776 DOI: 10.1002/pds.1940
    Acetaminophen poisoning is a common clinical problem, and early identification of patients with more severe poisoning is key to improving outcomes.
    Matched MeSH terms: Drug-Induced Liver Injury/diagnosis; Drug-Induced Liver Injury/epidemiology; Drug-Induced Liver Injury/prevention & control
  18. Saidatul A, Azlan C, Megat Amin M, Abdullah B, Ng Kh
    Biomed Imaging Interv J, 2010 Jan-Mar;6(1):e1.
    PMID: 21611060 MyJurnal DOI: 10.2349/biij.6.1.e2
    Computed tomography (CT) fluoroscopy is able to give real time images to a physician undertaking minimally invasive procedures such as biopsies, percutaneous drainage, and radio frequency ablation (RFA). Both operators executing the procedure and patients too, are thus at risk of radiation exposure during a CT fluoroscopy.This study focuses on the radiation exposure present during a series of radio frequency ablation (RFA) procedures, and used Gafchromic film (Type XR-QA; International Specialty Products, USA) and thermoluminescent dosimeters (TLD-100H; Bicron, USA) to measure the radiation received by patients undergoing treatment, and also operators subject to scatter radiation.The voltage was held constant at 120 kVp and the current 70mA, with 5mm thickness. The duration of irradiation was between 150-638 seconds.Ultimately, from a sample of 30 liver that have undergone RFA, the study revealed that the operator received the highest dose at the hands, which was followed by the eyes and thyroid, while secondary staff dosage was moderately uniform across all parts of the body that were measured.
    Matched MeSH terms: Liver
  19. Handayani T, Sakinah S, Nallappan M, Pihie AH
    Anticancer Res, 2007 Mar-Apr;27(2):965-71.
    PMID: 17465228
    Xanthorrhizol is a sesquiterpenoid compound extracted from the rhizome of Curcuma xanthorrhiza. This study investigated the antiproliferative effect and the mechanism of action of xanthorrhizol on human hepatoma cells, HepG2, and the mode of cell death. An antiproliferative assay using methylene blue staining revealed that xanthorrhizol inhibited the proliferation of the HepG2 cells with a 50% inhibition of cell growth (IC50) value of 4.17 +/- 0.053 microg/ml. The antiproliferative activity of xanthorrhizol was due to apoptosis induced in the HepG2 cells and not necrosis, which was confirmed by the Tdt-mediated dUTP nick end labeling (TUNEL) assay. The xanthorrhizol-treated HepG2 cells showed typical apoptotic morphology such as DNA fragmentation, cell shrinkage and elongated lamellipodia. The apoptosis mediated by xanthorrhizol in the HepG2 cells was associated with the activation of tumor suppressor p53 and down-regulation of antiapoptotic Bcl-2 protein expression, but not Bax. The levels of Bcl-2 protein expression decreased 24-h after treatment with xanthorrhizol and remained lower than controls throughout the experiment, resulting in a shift in the Bax to Bcl-2 ratio thus favouring apoptosis. The processing of the initiator procaspase-9 was detected. Caspase-3 was also found to be activated, but not caspase-7. Xanthorrhizol exerts antiproliferative effects on HepG2 cells by inducing apoptosis via the mitochondrial pathway.
    Matched MeSH terms: Liver Neoplasms/drug therapy*; Liver Neoplasms/metabolism; Liver Neoplasms/pathology
  20. Wong Ch, Goh K
    Biomed Imaging Interv J, 2006 Jul;2(3):e7.
    PMID: 21614253 MyJurnal DOI: 10.2349/biij.2.3.e7
    Hepatitis B virus (HBV) is one of the most well recognised human carcinogens. Since its discovery about 40 years ago, HBV has been studied extensively. This article summarises the evidence derived from various studies including epidemiological, animal model, histopathology studies and molecular genetics studies leading to the establishment of HBV as the main aetiological agent for hepatocellular carcinoma (HCC). The reduction in the incidence of childhood HCC due to mass hepatitis B vaccination in Taiwan is a dramatic demonstration of the critical aetiological role of hepatitis B in HCC. Thus it is essential for interventionalists to understand the epidemiological and pathogenesis of HCC to ensure optimal patient care.
    Matched MeSH terms: Liver Neoplasms
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