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Tiwari V Bhattacharya L 《Journal of environmental biology / Academy of Environmental Biology, India》2004,25(1):109-111
The protective role of "essentiale phospholipids" (EPL) on mercury induced thyroid dysfunction with special reference to cholesterol, thyroid peroxidase and thyroxine activity in mice were investigated. The animals were treated with 0.5 ml/day of 0.5 ppm aqueous mercuric chloride for a period of 7, 14 and 21 days. For the recovery 175 mg of EPL was given to mice (already treated with HgCl2) for a period of 7, 14 and 21 days. Daily treatment of HgCl2 for 7, 14 and 21 days decreased serum cholesterol, TPO and T4 activity. Simultaneous administration of EPL (25 mg/mice) restored thyroid function in mice by maintaining serum thyroid hormone concentration almost normal. It increased serum cholesterol, TPO and T4 activity. It appears that the protective effect of EPL against HgCl2 induced thyroid dysfunction is mediated through its antioxidative action. 相似文献
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Research to alter crops for their better performance involving modern technology is underway in numerous plants, and achievements
in transgenic plants are impacting crop improvements in unparalleled ways. Striking progress has been made using genetic engineering
technology over the past two decades in manipulating genes from diverse and exotic sources, and inserting them into crop plants
for inducing desirable characteristics. RNA interference (RNAi) has recently been identified as a natural mechanism for regulation
of gene expression in all higher organisms from plants to humans and promises greater accuracy and precision to plant improvement.
The expression of any gene can be down-regulated in a highly explicit manner exclusive of affecting the expression of any
other gene by using RNAi technologies. Additional research in this field has been focused on a number of other areas including
microRNAs, hairpin RNA, and promoter methylation. Manipulating new RNAi pathways, which generate small RNA molecules to amend
gene expression in crops, can produce new quality traits and having better potentiality of protection against abiotic and
biotic stresses. Nutritional improvement, change in morphology, or enhanced secondary metabolite synthesis are some of the
other advantages of RNAi technology. In addition to its roles in regulating gene expression, RNAi is also used as a natural
defense mechanism against molecular parasites such as jumping genes and viral genetic elements that affect genome stability.
Even though much advancement has been made on the field of RNAi over the preceding few years, the full prospective of RNAi
for crop improvement remains to be fully realized. The intricacy of RNAi pathway, the molecular machineries, and how it relates
to plant development are still to be explained. 相似文献
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Vinayak S. Adki Jyoti P. Jadhav Vishwas A. Bapat 《Environmental science and pollution research international》2013,20(2):1173-1180
Hexavalant chromium [Cr(VI)] tolerance and accumulation in in vitro grown Nopalea cochenillifera Salm. Dyck. plants was investigated. A micropropagation protocol was establish for a rapid multiplication of N. cochenillifera and [Cr(VI)] tolerance and accumulation was studied in in vitro grown cultures. Cr concentration was estimated by atomic absorption spectroscopy in roots and shoots to confirm plant’s hyperaccumulation capacity. Plants showed tolerance up to 100 μM K2Cr2O7 without any significant changes in root growth after 16 days treatment; whereas, chlorophyll content in plants treated with 1 and 10 μM K2Cr2O7 were not so different than the control plant. The levels of lipid peroxidation and protein oxidation increased significantly (p?<?0.01) with increasing concentration of chromium. Exposures of N. cochenillifera to lower concentrations of K2Cr2O7 (≤10 μM) induced catalase (CAT) and superoxide dismutase (SOD) significantly (p?<?0.001) but higher concentrations of K2Cr2O7 (>100 μM) inhibited the activities of CAT and SOD. Roots accumulated a maximum of 25,263.396?±?1,722.672 mg?Cr?Kg?1 dry weight (DW); while the highest concentration of Cr in N. cochenillifera shoots was 705.714?±?32.324 mg?Cr?Kg?1?DW. N. cochenillifera could be a prospective hyperaccumulator plant of Cr(VI) and a promising candidate for phytoremediation purposes. 相似文献
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Malik Bilal Ahmad Shah Mohammad Yousuf Sawant Vishwas A. 《Environmental science and pollution research international》2021,28(35):48274-48283
Environmental Science and Pollution Research - Micropiles, on account of their versatility, can serve as both a new foundation and a long-term option for prevailing foundations without disturbing... 相似文献
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Allam Venkata Sita Rama Raju Paudel Keshav Raj Gupta Gaurav Singh Sachin Kumar Vishwas Sukriti Gulati Monica Gupta Saurabh Chaitanya M. V. N. L. Jha Niraj Kumar Gupta Piyush Kumar Patel Vyoma K. Liu Gang Kamal Mohammad Amjad Hansbro Philip M. Oliver Brian Gregory George Chellappan Dinesh Kumar Dua Kamal 《Environmental science and pollution research international》2022,29(42):62733-62754
Environmental Science and Pollution Research - Asthma is a chronic inflammatory disease primarily characterized by inflammation and reversible bronchoconstriction. It is currently one of the... 相似文献
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