144 research outputs found

    Rare And Unexplored Ethnozoological Practices of Tangkhul Naga Community of Manipur: A North Eastern State of India

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    Ethnozoology is an applied discipline that integrates both the basic and social sciences which observe the aspects of nature, socioeconomic, anthropological and historical aspects of the animal and human relationship exist in that community. Tangkhul Naga community of the Ukhrul district of Manipur have a rich heritage of using animal products in their folklore medicines for the treatment of various human ailments since time immemorial. The present study was carried out with an intention to find out various animal-based products uses in the traditional healing system among the Tangkhul Naga community of Manipur, India. A survey for the data collection was carried out for a period of one year through semi-structural questionnaires, interactions through oral conversations with local medicinal practitioners, old men and women. The study reveals that a total 21 different animal species and their products are used for the treatment of different human ailments. Of the total 21 numbers of animals, 9 belongs to the invertebrate groups and 12 to the vertebrate groups. Out of the 9 animals from the invertebrate group, 1 annelid, 7 arthropods and 1 mollusc comprise 4.76%, 33.3% and 4.67% fauna respectively while in the vertebrate group, 2 amphibians, 1 reptile, 3 Aves and 6 mammals contributed 9.5%, 4.76%, 14.28% and 28.57% fauna respectively. The finding shows that the ethnozoological practices of using animal derived medicines employed by Tangkhul community in Manipur plays an important part in the primary health care system of this community which are rare as well as undocumented till today. Proper documentation and sustainable exploration of such rare traditional information on ethno-zoological practices of the Tangkhul community of the Manipur will be helpful in the integration of the traditional knowledge system in the modern medicines and ultimately in the formation of strategies for sustainable exploration and conservation of such bio resources

    Efficacy of Modified Eggs and Chick Muscles on Oxidative Stress of Type-2 Diabetes Mellitus Induced Male Wistar Rats

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    A modified poultry egg (Indian Patent Application No. 2264/Del-2005) and chick muscle enriched with optimum minerals, vitamin E and omega-3 fatty acid were developed and its efficacy was studied on oxidative stress of Type-2 diabetes mellitus induced male wistar rats. In this study, two groups of rats were fed on semi-synthetic diet containing 20 mg Zn/kg (control, group-I) and 80 mg Zn/kg (group-II) diet respectively for a period of 6 months. The study revealed that the gain in body weight increased in rats in Zn concentration dependent manner. The urine examined on weekly basis showed glucosuria in group-II on week 8 and thereafter. The blood lipid profile displayed a significant rise in serum glucose, total lipids, cholesterol, triglycerides, LDL-cholesterol, VLDL-cholesterol whereas HDL-cholesterol showed a reduction in their levels in group-II rats than their control counter parts. They displayed higher lipid peroxidation products and activities of superoxide dismutase, catalase, glutathione–s -transferase, glutathione reductase, glutathione (reduced) and glucose-6-phosphate dehydrogenase were significantly lowered and revealed a higher Zn concentration and lower Cu, Mg and Mn both in liver and kidney. On day 90, the male rats in group-II after the establishment of type-2 diabetes mellitus, were divided in to two groups- group-IIA and group-IIB. Feeding on these eggs and chick muscles mixed diet in these groups of rats, all the abnormalities were restored and a considerable reduction in lipid peroxidation products and a significant increased in the activities of enzymes per se with reversal of Zn, Cu, Mg and Mn levels closer to the control group were recorded. The present data suggest that these modified egg and chick muscle are effective in ameliorating the oxidative stress in type-2 diabetes mellitus induced male rats

    Generalization of Linearized Gouy-Chapman-Stern Model of Electric Double Layer for Nanostructured and Porous Electrodes: Deterministic and Stochastic Morphology

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    We generalize linearized Gouy-Chapman-Stern theory of electric double layer for nanostructured and morphologically disordered electrodes. Equation for capacitance is obtained using linear Gouy-Chapman (GC) or Debye-u¨\rm{\ddot{u}}ckel equation for potential near complex electrode/electrolyte interface. The effect of surface morphology of an electrode on electric double layer (EDL) is obtained using "multiple scattering formalism" in surface curvature. The result for capacitance is expressed in terms of the ratio of Gouy screening length and the local principal radii of curvature of surface. We also include a contribution of compact layer, which is significant in overall prediction of capacitance. Our general results are analyzed in details for two special morphologies of electrodes, i.e. "nanoporous membrane" and "forest of nanopillars". Variations of local shapes and global size variations due to residual randomness in morphology are accounted as curvature fluctuations over a reference shape element. Particularly, the theory shows that the presence of geometrical fluctuations in porous systems causes enhanced dependence of capacitance on mean pore sizes and suppresses the magnitude of capacitance. Theory emphasizes a strong influence of overall morphology and its disorder on capacitance. Finally, our predictions are in reasonable agreement with recent experimental measurements on supercapacitive mesoporous systems

    Therapeutical and Nutraceutical Roles of Cyanobacterial Tetrapyrrole Chromophore: Recent Advances and Future Implications

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    Cyanobacteria have attracted the attention of researchers because of their promising role as primary and secondary metabolites in functional food and drug design. Due to an ever-increasing awareness of health and the use of natural products to avoid the onset of many chronic and lifestyle metabolic diseases, the global demand for the use of natural drugs and food additives has increased in the last few decades. There are several reports about the highly valuable cyanobacterial products such as carotenoids, vitamins, minerals, polysaccharides, and phycobiliproteins showing antioxidant, anti-cancerous, anti-inflammatory, hypoglycemic, and antimicrobial properties. Recently, it has been shown that allophycocyanin increases longevity and reduces the paralysis effect at least in Caenorhabditis elegans. Additionally, other pigments such as phycoerythrin and phycocyanin show antioxidative properties. Because of their high solubility in water and zero side effects, some of the cyanobacterial tetrapyrrole derivatives, i.e., pigments, facilitate an innovative and alternative way for the beverage and food industries in place of synthetic coloring agents at the commercial level. Thus, not only are the tetrapyrrole derivatives essential constituents for the synthesis of most of the basic physiological biomolecules, such as hemoglobin, chlorophyll, and cobalamin, but also have the potential to be used for the synthesis of synthetic compounds used in the pharmaceutical and nutraceutical industries. In the present review, we focused on the different aspects of tetrapyrrole rings in the drug design and food industries and addressed its remaining limitations to be used as natural nutrient supplements and therapeutic agents

    Drug induced Parkinson’s: A comprehensive review of the issues and measures required to tackle the same

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    Drug-inducedParkinsonism(DIP) closelyresemblesParkinson'sdisease(PD)inmotorsymptoms butiscausedbyspecificmedicationsdisruptingdopaminereceptorsandneurotransmitterbalance. PD involves a complex interplay of genetic, environmental, and biochemical factors resulting in the gradual degeneration of dopaminergic neurons. Environmental toxins and genetic mutations, such as LRRK2 and SNCA, contribute to the risk of developing PD. DIP primarily occurs due to the obstruction of dopamine receptors by certain drugs, notably antipsychotics and antiemetics, affecting dopamine transmission and causing Parkinsonian symptoms. Toxin-induced Parkinsonism(TIP)arisesfromexposuretosubstanceslikemanganese,herbicides,pesticides,and specific drugs, disrupting dopaminergic pathways and altering neurotransmission. This study examines various cases of DIP, emphasizing the significance of timely identification and intervention. A thorough understanding and proactive management of DIP are crucial for alleviatingsymptomsandimprovingpatientoutcomes.Healthcareprofessionalsneedtodiligently monitor patients using medications associated with DIP, adjust treatment plans, and educate patientsaboutpotentialsideeffects. Further researchisimperativetounravelthepathophysiology of DIP, considering genetic, environmental, and drug-related factors, to enhance clinical practices and optimize patient care. Addressing DIP requires a multifaceted approach, including early recognition, thoughtful management, and patient-centred care

    Esterification of fatty acids from waste cooking oil to biodiesel over a sulfonated resin/PVA composite

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    Sulfonated cation exchange resins (s-CERs) have been widely studied as a replacement of liquid acids for the catalysis of esterification of free fatty acids (FFAs) to produce biodiesel with water as the only by-product. However, the water produced has strong affinity to sulfonate groups in s-CERs, which block the reactive sites for esterification and thus reduce the activity of a catalyst. To overcome this technical barrier, we have designed an s-CER/PVA composite by incorporating s-CER fines within a poly(vinyl alcohol) (PVA) matrix. PVA has a much stronger absorption preference for water than s-CERs and has very low selectivity for reactants (FFAs and methanol), which enables continuous removal of the produced water and liberation of reactive sulfonate sites in s-CERs for catalysis. With s-CER/PVA, FFA conversion was increased from 80.1% to 97.5% after an 8-hour reaction and the turnover frequency (TOF) was increased more than 3.3 times. The TOF of s-CER/PVA was also 2.6 times higher than that of sulfuric acid, suggesting that water-less, heterogeneous sulfonate sites are more reactive than water-blocked homogeneous ones. The reusability of s-CER/PVA was also enhanced due to the fact that the produced water that could cause deactivation of the s-CERs was largely removed by PVA

    Synthesis, characterisation and antifungal activity of chemically and fungal-produced silver nanoparticles against Trichophyton rubrum

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    Aims To characterise and explore the potential in extracellular biosynthesis of silver nanoparticles (AgNPs) by Penicillium chrysogenum and Aspergillus oryzae and to investigate the antifungal effect of chemically vs. biologically synthesised AgNPs comparing with conventional antifungal drugs against Trichophyton rubrum. Methods and Results Chemically synthesised AgNPs (Chem-AgNPs) coated with polyvinylpyrrolidone (PVP) were synthesised by chemical reduction method with glucose in PVP aqueous solution. Biologically synthesised AgNPs (Bio-AgNPs) were produced from the extracellular cell-free filtrate of Penicillium chrysogenum MUM 03.22 and Aspergillus oryzae MUM 97.19. Among the commercial antifungal drugs terbinafine exhibited the lower MIC range values of 0.063 to 0.25 μg ml-1 for the clinical strains. Chem-AgNPs exhibited antifungal activity against all T. rubrum strains. Bio-AgNPs produced by the fungal cell-free filtrate of P. chrysogenum showed an antifungal activity higher than fluconazole but less than terbinafine, itraconazole and Chem-AgNPs. Conclusion The synthesis parameters in future works should be carefully studied to take full advantage of all the potential of filamentous fungi in the synthesis of AgNPs. Significance and Impact of the study: Bio-AgNPs could be used as antifungal agents, namely against dermatophytesThe authors thank Pedro Martins (Physics Department of University of Minho) for help in XRD analysis. The authors thank to SDBSWeb: http://sdbs.db.aist.go.jp (Japanese National Institute of Advanced Industrial Science and Technology). The authors thank the FCT Strategic Project PEst-OE/EQB/LA0023/2013. Nicolina Dias acknowledges the project 'Consolidating Research Expertise and Resources on Cellular and Molecular Biotechnology at CEB/IBB', RECI/BBB-EBI/0179/2012

    Effect of mineral-enriched diet and medicinal herbs on Fe, Mn, Zn, and Cu uptake in chicken

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    <p>Abstract</p> <p>Background</p> <p>The goal of our study was to evaluate the effects of different medicinal herbs rich in polyphenol (Lemon balm, Sage, St. John's wort and Small-flowered Willowherb) used as dietary supplements on bioaccumulation of some essential metals (Fe, Mn, Zn and Cu) in different chicken meats (liver, legs and breast).</p> <p>Results</p> <p>In different type of chicken meats (liver, legs and breast) from chickens fed with diets enriched in minerals and medicinal herbs, beneficial metals (Fe, Mn, Zn and Cu) were analysed by flame atomic absorption spectrometry. Fe is the predominant metal in liver and Zn is the predominant metal in legs and breast chicken meats. The addition of metal salts in the feed influences the accumulations of all metals in the liver, legs and breast chicken meat with specific difference to the type of metal and meat. The greatest influences were observed in legs meat for Fe and Mn. Under the influence of polyphenol-rich medicinal herbs, accumulation of metals in the liver, legs and breast chicken meat presents specific differences for each medicinal herb, to the control group that received a diet supplemented with metal salts only. Great influence on all metal accumulation factors was observed in diet enriched with sage, which had significantly positive effect for all type of chicken meats.</p> <p>Conclusions</p> <p>Under the influence of medicinal herbs rich in different type of polyphenol, accumulation of metals in the liver, legs and breast chicken meat presents significant differences from the group that received a diet supplemented only with metal salts. Each medicinal herb from diet had a specific influence on the accumulation of metals and generally moderate or poor correlations were observed between total phenols and accumulation of metals. This may be due to antagonism between metal ions and presence of other chelating agents (amino acids and protein) from feeding diets which can act as competitor for complexation of metals and influence accumulation of metals in chicken meat.</p> <p><b>Graphical abstract</b></p
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