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11.
Different doses of arsenic (As) were used to investigate comparative toxicity on the liver and brain glycogen content on male and female Indian catfish Clarias batrachus (L.). As-induced effects were associated with gender, dose (5, 10, or 15?mg?L?1), and varying time periods (48, 96, or 144?h). It was noted that As produced dose- and time-dependent liver glycogenolysis and late brain glycogenolysis. Liver glycogenolysis was significantly increased after 48?h at all three As doses. At the highest dose 15?mg?L?1, liver glycogen were markedly diminished at in both male and female fish, but in females more reduction was observed than in males. However, with brain glycogen, the significant decrease was noted at 144?h with all three dose levels in both genders, with male being more susceptible. Thus, this study indicates that As produces glycogenolysis. The reduction in the liver glycogen content was more pronounced in female than in the male fish, whereas brain glycogen content decrease was more prominent in males. 相似文献
12.
Loganathan Tamil Moli Sultan Mohamed Thariq Hameed Ahsan Qumrul Shah Ain Umaira Md Jawaid Mohammad Talib Abd. Rahim Abu Basri Adi Azriff 《Journal of Polymers and the Environment》2021,29(11):3703-3720
Journal of Polymers and the Environment - The aim of this study is to investigate the effect of fiber length and loading on physico-mechanical and flammability properties of Cyrtostachys renda (CR)... 相似文献
13.
Passive air monitoring of PCBs and PCNs across East Asia: a comprehensive congener evaluation for source characterization 总被引:1,自引:0,他引:1
Hogarh JN Seike N Kobara Y Habib A Nam JJ Lee JS Li Q Liu X Li J Zhang G Masunaga S 《Chemosphere》2012,86(7):718-726
A comprehensive congener specific evaluation of polychlorinated biphenyls (PCBs) and polychlorinated naphthalenes (PCNs) in the atmosphere was conducted across East Asia in spring 2008, applying polyurethane foam (PUF) disk passive air sampler (PAS) as monitoring device. Mean concentrations derived for Japan, China and Korea were 184 ± 24, 1100 ± 118, and 156 ± 20 pg m−3 for ∑202 PCBs, and 9.5 ± 1.5, 61 ± 6, and 16 ± 2.4 pg m−3 for ∑63 PCNs, respectively. Relative to reported data from 2004, the present results suggest that air PCBs concentrations have not changed much in Japan and Korea, while it has increased by one order of magnitude in China. From principal component analysis, combustion emerged highly culpable in contemporary emissions of both PCBs and PCNs across the East Asian sub-region. Another factor derived as important to air PCBs was re-emissions/volatilization. Signals from PCBs formulations were also picked, but their general importance was virtually consigned to the re-emissions/volatilization tendencies. On the contrary, counterpart PCNs formulations did not appear to contribute much to air PCNs. 相似文献
14.
Copper is an essential micronutrient for plants. Present at a high concentration in soil, copper is also regarded as a major toxicant to plant cells due to its potential inhibitory effects against many physiological and biochemical processes. The interference of germination-related proteins by heavy metals has not been well documented at the proteomic level. In the current study, physiological, biochemical and proteomic changes of germinating rice seeds were investigated under copper stress. Germination rate, shoot elongation, plant biomass, and water content were decreased, whereas accumulation of copper and TBARS content in seeds were increased significantly with increasing copper concentrations from 0.2mM to 1.5mM followed by germination. The SDS-PAGE showed the preliminary changes in the polypeptides patterns under copper stress. Protein profiles analyzed by two-dimensional electrophoresis (2-DE) revealed that 25 protein spots were differentially expressed in copper-treated samples. Among them, 18 protein spots were up-regulated and 7 protein spots were down-regulated. These differentially displayed proteins were identified by MALDI-TOF mass spectrometry. The up-regulation of some antioxidant and stress-related proteins such as glyoxalase I, peroxiredoxin, aldose reductase, and some regulatory proteins such as DnaK-type molecular chaperone, UlpI protease, and receptor-like kinase clearly indicated that excess copper generates oxidative stress that might be disruptive to other important metabolic processes. Moreover, down-regulation of key metabolic enzymes like alpha-amylase or enolase revealed that the inhibition of seed germinations after exposure to excess copper not only affects starvation in water uptake by seeds but also results in failure in the reserve mobilization processes. These results indicate a good correlation between the physiological and biochemical changes in germinating rice seeds exposed to excess copper. 相似文献
15.
Akhter Faheem Jamali Abdul Rauf Abbasi Mahmood Nabi Mallah Mukhtiar Ali Rao Ahsan Atta Wahocho Shafeeque Ahmed Anees-ur-Rehman Hafiz Chandio Zubair Ahmed 《Environmental science and pollution research international》2023,30(5):11226-11245
Environmental Science and Pollution Research - The hydrophobicity of silica and composite aerogels has enabled them to acquire applications in a variety of fields. With remarkable structural,... 相似文献
16.
Bisphenol S has been introduced into some industrial applications and it may act as a xeno-estrogen that can alter endocrine functions and reproduction. The present study was carried out to examine the effect of bisphenol S exposure on oxidative stress, generation of reactive oxygen species, and DNA integrity in rat spermatozoa in vitro and daily sperm production and sperm DNA damage in vivo. Sperm were incubated with bisphenol S at concentrations of 0.5, 1, 10, and 100 µg/L. At the highest concentration, bisphenol S induced formation of reactive oxygen species, caused lipid peroxidation, affected superoxide dismutase levels, and increased DNA fragmentation. Adult rats were exposed to doses of 0.5, 5, 25, and 50 µg/kg/d for 28 days. Decrease in daily sperm production and an increase in sperm DNA damage was observed at the highest dose in the 50 µg/kg/d treated group, but sperm motility was not reduced. 相似文献
17.
Younis Ijaz Longsheng Cheng Zulfiqar Muhammad Imran Imran Muhammad Shah Syed Ahsan Ali Hussain Mudassar Solangi Yasir Ahmed 《Environmental science and pollution research international》2021,28(30):40355-40370
Environmental Science and Pollution Research - The COVID-19 pandemic needs immediate solution before inflicting more devastation. So far, China has successfully controlled transmission of COVID-19... 相似文献
18.
Biswas Manik Chandra Jony Bodiuzzaman Nandy Pranab Kumar Chowdhury Reaz Ahmed Halder Sudipta Kumar Deepak Ramakrishna Seeram Hassan Masud Ahsan Md Ariful Hoque Md Enamul Imam Muhammad Ali 《Journal of Polymers and the Environment》2022,30(1):51-74
Journal of Polymers and the Environment - Recently, the advantages of biopolymers over conventional plastic polymers are unprecedented, provided that they are used in situations in which they raise... 相似文献
19.
Ali Ahsan Chen Longbin Nasir Muhammad Salman Wu Chao Guo Baolin Yang Yaodong 《Environmental Chemistry Letters》2023,21(2):1075-1092
Environmental Chemistry Letters - In the context of climate change, freshwater shrinkage and industrialization, human diseases are increasing due to water pollution by toxic chemicals and... 相似文献
20.
Ahsan Haseeb Ayub Mahnoor Irfan Hafiz Muhammad Saleem Muhammad Anjum Irfan Haider Ihtisham Asif Awais Abbas Syed Qamar ul Hulassan Syed Shams 《Environmental science and pollution research international》2023,30(6):14580-14591
Environmental Science and Pollution Research - Fluvoxamine, a selective serotonin re uptake inhibitor, is used to treat depression. The aim of present study was to evaluate fluvoxamine in acute... 相似文献