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Natchaya Wongeakin, Pattarin Sridulyakul, Amporn Jariyapongskul, Apichart Suksamrarn and Suthiluk Patumraj*
Abstract: Diabetes- induced endothelial dysfunction has been well recognized for its underlining causes of oxidative stress. Therefore, several studies have worked on testing active antioxidant agents such as vitamin C and E against diabetes induced oxidative stress to preserve endothelial cells. In the present study, we assessed the effects of plant-derived antioxidant, curcumin and its analog, tetrahydrocurcumin (THC) and also its preventive qualities. Using an animal model, assessment for endothelial-dependent vasodilatation and the behavior of leukocytes were accomplished by using streptozotocin -induced diabetic rats and its mesenteric microcirculation parameters. The results indicated that both antioxidants, curcumin and THC, could significantly inhibit those abnormalities typically seen in endothelial dysfunctions (P < 0.05) in relation to their hypoglycemic and hypolipidemic properties. Unfortunately, curcumin has a poor absorption quality and as a result of this, a higher dose is needed to prevent abnormal endothelial functions. On the other hand, THC was found to be a more potent antioxidant and good therapeutic agent for diabetic patients in preventing diabetes vascular abnormalities.[...] Read More.
Keywords: Curcumin, tetrahydrocurcumin, endothelial dysfunction, diabetes.
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Mungatana N. W. K., Ngure R. M., Shitandi A. A.*, Mungatana C. K. and Yole D. S.
Abstract: Schistosoma mansoniasis is a disease of grave concern due to its high morbidity and mortality in parts of the world. This study aimed at providing insight into the pathogenesis of S. mansoniasis as an aid in the development of effective control methods. Iron, zinc and copper concentrations were spectro-photometrically measured in sequential serum specimens obtained from baboons throughout the course of acute S. mansoni infection, following curative treatment with praziquantel and following post-treatment challenge with a second cercarial infection. The initial infection resulted in a two-fold increase in copper concentrations by Day 102 post-infection. Iron concentrations fell to almost half of pre-infection concentrations by Day 123 post-infection, while those of zinc fell to a third of pre-infection concentrations by Day 81 post-infection. These changes were seen to recover several weeks following treatment, though pre-infection concentrations were never achieved. Haptoglobin, a sensitive bio-marker in the acute phase response of S. mansoni, was also measured at all sampling points. Haptoglobin changes were in concordance with those of the cations. The findings demonstrate that iron, zinc and copper are reactants in the acute phase response of S. mansoni in the nonhuman primate model, Papio anubis. Furthermore, these reactants are modulated in challenge infections and may be important in the immunopathology of the disease.[...] Read More.
Keywords: Acute phase response, Schistosomiasis mansoni, serum iron, serum zinc, serum copper.
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Nwangwu Spencer C.*, Ike Francisca, Olley Misan, Oke James M., Uhunmwangho Esosa, Amegor, O. F. Ubaoji Kingsley and Nwangwu Udoka
Abstract: The lipid profile of normal adult male rats administered both ethanolic and aqueous leaf extracts of Landolphia owariensis (P. Beauv) were determined. The animals were distributed into two sets of four groups with five animals in each group. Each set had one group, which served as control while the other three groups in the two sets were administered different concentrations of the ethanolic and aqueous leaf extracts. The control groups were administered normal saline and the other groups’ 100, 200 and 300 mgkg-1 of the ethanolic and aqueous extracts respectively, twice daily for two weeks. The Total cholesterol (TC), Triacylglyceride (TAG), High Density Lipoprotein-Cholesterol (HDL-C), Low Density Lipoprotein- Cholesterol (LDL -C), and Very Low Density Lipoprotein (VLDL) levels were determined in both sets by colorimetric methods. The ethanolic extract showed a marked reduction of 87.45% in LDL -C level with the 100 mgkg-1 dose, though effect of all the three concentrations were significant but depreciated with increase in concentration. Animals administered both the extracts at all three concentrations increased in their HDL-C levels, but effect was pronounced in 100 and 200 mgkg-1 with 15 and 150% increases respectively, in the aqueous extract group. There were dose-dependent reductions of TC levels, with the 100, 200 and 300 mgkg-1 with reduction of 40.78, 37.59 and 34.56% respectively, in ethanolic extracts. There were 50.55 and 55.33% reduction in 100 and 200 mgkg-1 of the aqueous extracts on TAG level. The results are indicative of the hypocholesterolaemic potentials of L. owariensis leaf extracts.[...] Read More.
Keywords: Aqueous extract, ethanolic extract, Hypocholesterolaemia, Landolphia owariensis.
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A. J. Mahadesh Prasad*, K. Kemparaju, Elizabeth A. Frank and Cletus J. M. D’Souza
Abstract: Paraoxonase/arylesterases (EC.3.1.8.2) is an enzyme found tightly associated with high density lipoprotein particle in serum. Because of its unique enzyme activity, antioxidant property and its role as an anti atherosclerotic molecule, various methods are used for its purification from human serum. Methods involved in its purification are elaborate and complicated. Also the yield and final activity are highly variable. Here, we report a 2 step method of purification involving affinity chromatography on cibacron blue sepharose followed by gel filtration on sephadex G50.The final preparation was 27.7 fold purified compared with the serum and gave a single band in SDS-PAGE by silver staining.[...] Read More.
Keywords: Cibacron blue sepharose, paraoxonase, phenyl acetate, SDS-PAGE, silver staining.
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Seyed Hessamedin Nabavizadeh, Ozair-bin Majid and Amir Anushiravani*
Abstract: Herbal drug therapy is a common practice adopted in traditional and alternative medicine and has been used in the treatment of neonatal jaundice or hyperbilirubinemia from ancient times. This is done with the help of different herbal extracts and using different treatment methods. The knowledge of new possibilities and the fact that herbal drugs have been used in some communities for a long time, clarifies the importance of studying herbal drugs. Herbal drug therapies are used commonly which amplifies the need to evaluate the efficacy of these drugs. This study was performed to evaluate the effect of commonly used herbal drugs in neonatal jaundice, through in vitro techniques. In this study 0.5 cc (50 µg/ml) of different herbal extracts such as Chi corium intybus, Fumaria parviflora, Zizyphus jujuba and Alhagi pseudoalhgi, Purgative manna which were obtained through hydrochloric instillation and were added to 1 cc of neonatal serum with hyperbilirubinemia. Then the level of bilirubin was checked by diazo blank method. Among all of the herbal extracts, only Chi corium intybus demonstrated a lowering effect on indirect serum bilirubin. Although Chi corium intybus showed lower levels than the control group, but statistically there was no significant difference in direct bilirubin levels between these groups. Herbal drugs can decrease the bilirubin level through different mechanisms, such as increasing the activity of liver enzymes and decreasing the enterohepatic circulation. But the extract of the herb Chi corium intybus imposes its affect directly on bilirubin. Therefore further investigation is needed in order to separate the active agent in chi corium intybus.[...] Read More.
Keywords: Hyperbilirubinemia, Fumaria parviflora, Zizyphus jujuba, Chi corium intybus, Alhagi pseudoalhagi, Purgative manna.
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G. C. Jain,* Hemant Pareek, B. S. Khajja, Kusum Jain, S. Jhalani, S. Agarwal and Sameer Sharma
Abstract: In the present study, the hepatoprotective activity of methanolic extract of Apium graveolens L. (celery) seeds was tested against Di-(2- ethylhexyl) phthalate (DEHP) induced hepatotoxicity in rats. Oral administration of DEHP (1000 mg/kg b.wt/day) for 6 weeks in rats caused a significant increase in the levels of serum marker enzymes like serum glutamate oxaloacetate transaminase (SGOT), serum glutamate pyruvate transaminase (SGPT), alkaline phosphatases (ALP) and the levels of total bilirubin and hepatic lipid peroxidation (TBARS). The levels of serum protein, hepatic glutathione (GSH) and ascorbic acid were decreased, administration of A. graveolens seeds extract (300 mg/kg b.wt./day p.o.) for 6 weeks results in a significant recovery of these biochemical parameters toward normalcy compared with the DEPC treated and control rats.[...] Read More.
Keywords: Apium graveolens, hepatic toxicity, di-(2- ethylhexyl) phthalate, hepatic marker enzymes.
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N.  O. A. Imaga*, G. O. Gbenle, V. I. Okochi, S. O. Akanbi, S. O. Edeoghon, O.  V. Oigbochie, M. O. Kehinde and S. B. Bamiro
Abstract: Sickle cell disease (SCD) results from a mutation in the hemoglobin inside the red blood cells, where a glutamic acid at position 6 is replaced by a valine. Many phytomedicines have been identified as potential antisickling agents, stemming from reported usage as ethnomedicines by the local folk. This research examined methanolic leaf extracts of Carica papaya L. (Caricaceae) for possible in vitro antisickling and membrane-stabilizing activities involving the use of positive (p-hydroxybenzoic acid 5 mg/ml) and negative (normal saline) controls for the antisickling experiments and osmotic fragility test on Hbss red blood cells obtained from non- crisis state sickle cell patients. Fragiliograms indicated that the plant extract reduced hemolysis and protected erythrocyte membrane integrity under osmotic stress conditions. Pretreatment of SS cell suspensions with C. papaya leaf extract inhibited formation of sickle cells under severe hypoxia, with only 0 - 5% sickle cells at 40 min compared with untreated SS cell suspensions which had over 60% sickle cells. These results indicate the feasibility of C. papaya as an attractive potential candidate for SCD therapy.[...] Read More.
Keywords: Antisickling, membrane-stabilizing, sickle cell disease, erythrocyte fragility, Carica papaya, toxicity profile.
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Awadhesh Kumar Singh, Dattatreya Mahadev Kadam*, Mili Saxena and R. P. Singh
Abstract: Study was undertaken to determine the efficacy of defatted soyflour mix levels in Gulabjamun (sweet dessert comprised of fried milk balls dipped in sugar syrup) and its impact on the quality parameters. Soy flour was fortified in three levels (3.33, 6.66 and 9.99%) w/w to prepare different compositions of Gulabjamuns by replacing wheat-flour in control recipe. 10 g spherical shape balls were made using thoroughly mixed ingredients dough and these were deep -fried in oil before soaking in sugar syrup (50°Brix for 4 h) at 70°C. Standard methods were used to estimate protein and crude fat content in Gulabjamun. Significant effect of raw premixes, prior to sugar syrup dipping, was observed due to addition of defatted soy flour on protein and fat content. Protein content was decreased to 18.24% from 20.66% and fat content increased to 28.36 from 12.09% in deep-fried samples from raw premix. Hardness, cohesiveness, springiness/elasticity, gumminess and chewiness values were increased with the increase in the soy flour levels. Appearance, colour, texture, flavour and overall acceptability of the Gulabjamuns had improved with the addition of 3.33% soy flour and decreased there after.[...] Read More.
Keywords: Fat, fortification, Gulabjamun, protein, sensory attributes, soy flour, TPA.
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Obinaju, Blessing Ebele
Abstract: Industrialization has excessively modified the discharge and distribution of arsenic in the environment through natural and anthropogenic activities. Gastrointestinal tract, Lung and Dermal absorptions account for various adverse effects associated with arsenic toxicity. The knowledge of arsenic biotransformation holds the trivalent species (DMA3+ and MMA3+) accountable for most arsenic toxicity with mechanisms of action such as the inhibition of DNA replicating or repair enzymes, interference with tissue respiration and oxidative stress. There is information of transplacental arsenic carcinogenesis and arsenic disruption of endocrine activity but most of these mechanisms remain poorly understood. More importantly, the exact dose at which arsenic induces tumours in vivo is still a major research question and therefore necessitates more scientific investigation/ research.[...] Read More.
Keywords: Arsenic, toxicity, carcinogenesis.
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Chukwunonso E. C. C. Ejike * and Tufon N. Emmanuel
Abstract: Cardiovascular disease (CVD) is a leading cause of mortality globally. Reducing dietary fat and cholesterol intake is central to the reduction in the risk of CVD. In Nigeria and other developing countries, meat is a good source of protein and other nutrients, and its consumption is increasing. This study investigates the cholesterol concentration of ten parts of bovine meat – rib muscle, fore-limb muscle, hind-limb muscle, lungs, large intestine, small intestine, colon, liver, kidney and heart. Standard biochemical methods were used for all assays. The results show that cholesterol concentration was highest in the liver (6.5 ± 0.15 mg/g) and lowest in the large intestine (1.0 ± 0.01 mg/g). Organ meats had more cholesterol per 85 g serving than the daily recommendations of the American Heart Association. Considering that meat has some beneficial effects, we conclude that while bovine meat should not be avoided completely, its consumption (especially bovine organ meats consumption) should be minimized particularly by individuals and populations at risk of CVD and its co-morbid conditions.[...] Read More.
Keywords: Bovine meat, cardiovascular disease, cholesterol concentration.
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