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  1. Article ; Online: Study on the Effects of Organophosphate Insecticide Triazophos, Biopesticide Spinosad and a Pyrethroid Insecticide Cypermethrin on Oxidative Stress Biomarkers of Branchiura sowerbyi (Beddard, 1892)

    Chandan Sarkar, Arnab Chatterjee, Anandamay Barik and Nimai Chandra Saha

    Nature Environment and Pollution Technology, Vol 21, Iss 2, Pp 787-

    2022  Volume 793

    Abstract: This study aims to evaluate the toxic effects of organophosphate insecticide triazophos, biopesticide spinosad, and a pyrethroid insecticide cypermethrin on benthic Oligochaete worm, Branchiura sowerbyi during 96 h acute exposure. B. sowerbyi were ... ...

    Abstract This study aims to evaluate the toxic effects of organophosphate insecticide triazophos, biopesticide spinosad, and a pyrethroid insecticide cypermethrin on benthic Oligochaete worm, Branchiura sowerbyi during 96 h acute exposure. B. sowerbyi were exposed to two different sub-lethal concentrations (10% and 50% of 96h LC50) of triazophos, spinosad, and cypermethrin for 96 h in laboratory conditions. Catalase (CAT) activity of the control and treated worms were evaluated after 24 and 96 h of exposure. Integrated biomarker response (IBR) was applied for comparison between these three toxicants. For all sub-lethal doses i.e. 2.25 mg.L-1 and 0.5 mg.L-1 of test chemical triazophos, 3.07 mg.L-1 and 0.6 mg.L-1 of test chemical spinosad, and 0.38 mg.L-1 and 0.08 mg.L-1 of test chemical cypermethrin, catalase (CAT) activity raised significantly (p<0.05) in the treated worms in compare to the control worms. This study shows that toxicants including Triazophos, spinosad, and cypermethrin cause a large increase in catalase (CAT) activity in Branchiura sowerbyi, which is likely due to the toxicant’s increased ROS creation neutralizing the negative effects. IBR analysis aids in the differentiation of these three compounds’ harmful effects. As per IBR analysis, the rank of the toxicants is Cypermethrin > Triazophos > Spinosad.
    Keywords integrated biomarker response ; catalase ; pesticides ; branchiura sowerbyi ; Environmental effects of industries and plants ; TD194-195 ; Science (General) ; Q1-390
    Language English
    Publishing date 2022-06-01T00:00:00Z
    Publisher Technoscience Publications
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: The protective effects of nerol to prevent the toxicity of carbon tetrachloride to the liver in Sprague-Dawley rats

    Milon Mondal / Jibanananda Bala / Kakoli Rani Mondal / Sadia Afrin / Protyaee Saha / Moumita Saha / Sarmin Jamaddar / Uttam Kumar Roy / Chandan Sarkar

    Heliyon, Vol 9, Iss 12, Pp e23065- (2023)

    2023  

    Abstract: Introduction: Carbon-tetrachloride (CCl4) is well-known to cause liver damage due to severe oxidative stress. Nerol, on the other hand, is a monoterpene that is antioxidant, antiviral, antibacterial, anti-inflammatory, and anxiolytic. This study set out ... ...

    Abstract Introduction: Carbon-tetrachloride (CCl4) is well-known to cause liver damage due to severe oxidative stress. Nerol, on the other hand, is a monoterpene that is antioxidant, antiviral, antibacterial, anti-inflammatory, and anxiolytic. This study set out to determine if nerol may be used as a prophylactic measure against the oxidative stress mediated hepatic injury caused by CCl4. Materials and methods: For the aim of this experiment, 35 male Sprague-Dawley rats ranging in body weight (BW) from 140 to 180 g were split into five separate groups. With the exception of vehicle control group 1, all experimental rats were subjected to carbon tetrachloride exposure through intra-peritoneal injection at a 0.7 mL/kg body weight dose once a week for 4 weeks (28 days). The treatment groups 3 and 4 received oral administration of nerol at 50 and 100 mg/kg BW for 28 days. In the same time period, the standard control group received 100 mg/kg BW silymarin. Results: Serum hepatic markers, lipid profiles, albumin, globulin, bilirubin, and total protein were all substantially improved in nerol-treated rats in a dose-dependent manner that had been exposed to CCl4 compared to the only CCl4-treated group. Carbon tetrachloride-exposed rats had lower glutathione, superoxide dismutase, and catalase levels and higher thio-barbituric acid reactive substances (TBARS) levels than normal rats. In contrast, administration of nerol shown a significant augmentation in the concentrations of these antioxidant compounds, while concurrently inducing a decline in the levels of TBARS in the hepatic tissue. In a similar vein, the histo-pathological examination yielded further evidence indicating that nerol offered protection to the hepatocyte against damage generated by CCl4. Conclusion: According to the findings of our investigation, nerol has potential as a functional element to shield the liver from harm brought on by ROS that are caused by CCL4.
    Keywords Nerol ; Carbon-tetrachloride ; Hepatotoxicity ; Oxidative-stress ; Hepatoprotective ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
    Subject code 610
    Language English
    Publishing date 2023-12-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: TRPM2-mediated Ca2+ signaling as a potential therapeutic target in cancer treatment

    Eunus S. Ali / Brototi Chakrabarty / Sarker Ramproshad / Banani Mondal / Neloy Kundu / Chandan Sarkar / Javad Sharifi-Rad / Daniela Calina / William C. Cho

    Cell Communication and Signaling, Vol 21, Iss 1, Pp 1-

    an updated review of its role in survival and proliferation of cancer cells

    2023  Volume 13

    Abstract: Abstract The transient receptor potential melastatin subfamily member 2 (TRPM2), a thermo and reactive oxygen species (ROS) sensitive Ca2+-permeable cation channel has a vital role in surviving the cell as well as defending the adaptability of various ... ...

    Abstract Abstract The transient receptor potential melastatin subfamily member 2 (TRPM2), a thermo and reactive oxygen species (ROS) sensitive Ca2+-permeable cation channel has a vital role in surviving the cell as well as defending the adaptability of various cell groups during and after oxidative stress. It shows higher expression in several cancers involving breast, pancreatic, prostate, melanoma, leukemia, and neuroblastoma, indicating it raises the survivability of cancerous cells. In various cancers including gastric cancers, and neuroblastoma, TRPM2 is known to conserve viability, and several underlying mechanisms of action have been proposed. Transcription factors are thought to activate TRPM2 channels, which is essential for cell proliferation and survival. In normal physiological conditions with an optimal expression of TRPM2, mitochondrial ROS is produced in optimal amounts while regulation of antioxidant expression is carried on. Depletion of TRPM2 overexpression or activity has been shown to improve ischemia–reperfusion injury in organ levels, reduce tumor growth and/or viability of various malignant cancers like breast, gastric, pancreatic, prostate, head and neck cancers, melanoma, neuroblastoma, T-cell and acute myelogenous leukemia. This updated and comprehensive review also analyzes the mechanisms by which TRPM2-mediated Ca2+ signaling can regulate the growth and survival of different types of cancer cells. Based on the discussion of the available data, it can be concluded that TRPM2 may be a unique therapeutic target in the treatment of several types of cancer. Video Abstract
    Keywords TRPM2 ion channel ; Ca2+ signaling ; Oxidative stress ; Cancer ; Therapeutic target ; Medicine ; R ; Cytology ; QH573-671
    Subject code 570
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher BMC
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Study of pro-oxidant status in acute myocardial infarction

    Tanushri Khatua / Chandan Sarkar / Sujit Kumar Dey / Biswajit Majumder

    Asian Journal of Medical Sciences, Vol 9, Iss 4, Pp 31-

    2018  Volume 34

    Abstract: Background: Apart from several well documented risk factors; oxidative stress may play an important role in the pathogenesis of myocardial infarction. Our study has been designed to investigate the pro-oxidant status in AMI patients who have no previous ... ...

    Abstract Background: Apart from several well documented risk factors; oxidative stress may play an important role in the pathogenesis of myocardial infarction. Our study has been designed to investigate the pro-oxidant status in AMI patients who have no previous history of diabetes, hypertension and habit of smoking. Aims and Objectives: To measure the level of serum thiobarbituric acid reactive substances(TBARS) to assess the extent of oxidative damage in recently diagnosed cases of AMI and to look for any correlation between this stress marker and some of the lipid profile markers. Materials and Methods: A cross sectional study was conducted in a tertiary care hospital with 50 non-diabetic, non-hypertensive, non-smoker AMI patients of either sex as Cases and 50 age and sex matched healthy Controls. The biochemical parameters were measured by validated techniques. Results: Level of serum TBARS (4.78 ± 1.06 nmol/ml) has significantly increased (p<0.001) in cases with respect to control group(2.19±0.41 nmol/ml); a positive correlation between serum TBARS and LDL; a negative correlation between serum TBARS and HDL in cases. Conclusion: Our study indicates an increased oxidative stress in AMI patients even in absence of some high risk factors which are oxidative stress inducers by themselves. This evidence suggests that oxidative stress itself may play an important role in the pathogenesis of myocardial infarction. So, the oxidative stress marker may have the importance in early diagnosis of AMI. It also suggests the potential appropriateness of antioxidant therapy in the prevention of AMI.
    Keywords ami ; oxidative stress ; non-diabetic ; non-hypertensive ; non-smoker ; tbars ; ldl ; hdl ; Medicine ; R
    Subject code 610
    Language English
    Publishing date 2018-07-01T00:00:00Z
    Publisher Manipal College of Medical Sciences, Pokhara
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Nanoparticles as antimicrobial and antiviral agents

    Shabnam Sharmin / Md. Mizanur Rahaman / Chandan Sarkar / Olubunmi Atolani / Mohammad Torequl Islam / Oluyomi Stephen Adeyemi

    Heliyon, Vol 7, Iss 3, Pp e06456- (2021)

    A literature-based perspective study

    2021  

    Abstract: The scientific explorations of nanoparticles for their inherent therapeutic potencies as antimicrobial and antiviral agents due to increasing incidences of antibiotic resistance have gained more attention in recent time. This factor amongst others ... ...

    Abstract The scientific explorations of nanoparticles for their inherent therapeutic potencies as antimicrobial and antiviral agents due to increasing incidences of antibiotic resistance have gained more attention in recent time. This factor amongst others necessitates the search for newer and more effective antimicrobial agents. Several investigations have demonstrated the prospects of nanoparticles in the treatment of various microbial infections. The therapeutic applications of nanoparticles as either delivery agent or broad spectrum inhibition agents in viral and microbial investigations can no longer be overlooked. Their large surface area to volume ratio made them an indispensable substance as delivery agents in many respect. Various materials have been used for the synthesis of nanoparticles with unique properties channelised to meet specific therapeutic requirement. This review focuses on the antibacterial, antifungal, and antiviral potential of nanoparticles with their probable mechanism of action.
    Keywords Bacteria ; Fungi ; Virus ; Nanoparticles ; Anti-microbial therapy ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
    Subject code 620
    Language English
    Publishing date 2021-03-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Potential Therapeutic Options for COVID-19

    Chandan Sarkar / Milon Mondal / Muhammad Torequl Islam / Miquel Martorell / Anca Oana Docea / Alfred Maroyi / Javad Sharifi-Rad / Daniela Calina

    Frontiers in Pharmacology, Vol

    Current Status, Challenges, and Future Perspectives

    2020  Volume 11

    Abstract: The COVID-19 pandemic represents an unprecedented challenge for the researchers to offer safe, tolerable, and effective treatment strategies for its causative agent known as SARS-CoV-2. With the rapid evolution of the pandemic, even the off-label use of ... ...

    Abstract The COVID-19 pandemic represents an unprecedented challenge for the researchers to offer safe, tolerable, and effective treatment strategies for its causative agent known as SARS-CoV-2. With the rapid evolution of the pandemic, even the off-label use of existing drugs has been restricted by limited availability. Several old antivirals, antimalarial, and biological drugs are being reconsidered as possible therapies. The effectiveness of the controversial treatment options for COVID-19 such as nonsteroidal antiinflammatory drugs, angiotensin 2 conversion enzyme inhibitors and selective angiotensin receptor blockers was also discussed. A systemic search in the PubMed, Science Direct, LitCovid, Chinese Clinical Trial Registry, and ClinicalTrials.gov data bases was conducted using the keywords “coronavirus drug therapy,” passive immunotherapy for COVID-19’, “convalescent plasma therapy,” (CPT) “drugs for COVID-19 treatment,” “SARS-CoV-2,” “COVID-19,” “2019-nCoV,” “coronavirus immunology,” “microbiology,” “virology,” and individual drug names. Systematic reviews, case presentations and very recent clinical guidelines were included. This narrative review summarizes the available information on possible therapies for COVID-19, providing recent data to health professionals.
    Keywords Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) ; pandemic ; COVID-19 proposed therapy ; convalescent plasma ; therapeutic challenges ; Therapeutics. Pharmacology ; RM1-950 ; covid19
    Subject code 610
    Language English
    Publishing date 2020-09-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Heliotropium indicum L.

    Chandan Sarkar / Milon Mondal / Bilkis Khanom / Md. Monir Hossain / Md. Solayman Hossain / Antoni Sureda / Muhammad Torequl Islam / Miquel Martorell / Manoj Kumar / Javad Sharifi-Rad / Ahmed Al-Harrasi / Ahmed Al-Rawahi

    Evidence-Based Complementary and Alternative Medicine, Vol

    From Farm to a Source of Bioactive Compounds with Therapeutic Activity

    2021  Volume 2021

    Abstract: This study aimed to summarize the available data on the ethnomedicinal and phytopharmacological activities of Heliotropium indicum L. based on database reports. For this purpose, an up-to-date literature search was carried out in the Google Scholar, ... ...

    Abstract This study aimed to summarize the available data on the ethnomedicinal and phytopharmacological activities of Heliotropium indicum L. based on database reports. For this purpose, an up-to-date literature search was carried out in the Google Scholar, Scopus, Springer Link, Web of Science, ScienceDirect, ResearchGate, PubMed, Chem Spider, Elsevier, BioMed Central, and patent offices (e.g., USPTO, CIPO, NPI, Google patents, and Espacenet) for the published materials. The findings suggest that the plant contains many important phytochemicals, including pyrrolizidine alkaloids, indicine, echinitine, supinine, heleurine, heliotrine, lasiocarpine, acetyl indicine, indicinine, indicine N-oxide, cynoglossine, europine N-oxide, heleurine N-oxide, heliotridine N-oxide, heliotrine N-oxide, heliotrine, volatile oils, triterpenes, amines, and sterols. Scientific reports revealed that the herb showed antioxidant, analgesic, antimicrobial, anticancer, antituberculosis, antiplasmodial, anticataract, antifertility, wound healing, antiinflammatory, antinociceptive, antihyperglycemic, anthelmintic, diuretic, antitussive, antiglaucoma, antiallergic, and larvicidal activity. In conclusion, in vitro studies with animal models seem to show the potential beneficial effects of H. indicum against a wide variety of disorders and as a source of phytotherapeutic compounds. However, clinical studies are necessary to confirm the effects observed in animal models, determine the toxicity of the therapeutic dose and isolate the truly bioactive components.
    Keywords Other systems of medicine ; RZ201-999
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher Hindawi Limited
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Quercetin and/or Ascorbic Acid Modulatory Effect on Phenobarbital-Induced Sleeping Mice Possibly through GABA A and GABA B Receptor Interaction Pathway

    Rajib Hossain / Khattab Al-Khafaji / Rasel Ahmed Khan / Chandan Sarkar / Md. Shahazul Islam / Dipta Dey / Divya Jain / Farhana Faria / Rukaya Akbor / Olubunmi Atolani / Sónia M. R. Oliveira / Abolghasem Siyadatpanah / Maria de Lourdes Pereira / Muhammad Torequl Islam

    Pharmaceuticals, Vol 14, Iss 721, p

    2021  Volume 721

    Abstract: Depressive disorder is a recurrent illness that affects large numbers of the general population worldwide. In recent years, the goal of depression treatment has moved from symptomatic response to that of full remission. However, treatment-resistant ... ...

    Abstract Depressive disorder is a recurrent illness that affects large numbers of the general population worldwide. In recent years, the goal of depression treatment has moved from symptomatic response to that of full remission. However, treatment-resistant depression is a major challenge in the treatment of depression or depression-related disorders. Consensus opinion, therefore, suggests that effective combined aggressive initial treatment is the most appropriate strategy. This study aimed to evaluate the effects of quercetin (QUR) and/or ascorbic acid (AA) on Phenobarbital-induced sleeping mice. QUR (50 mg/kg) and/or AA (25 mg/kg) with or without intraperitoneally pre-treated with GABA receptor agonist (diazepam: 2 mg/kg, i.p.) or antagonist (Flumazenil: 2.5 mg/kg, i.p.) to underscore the effects, as well as the possible involvement of the GABA receptor in the modulatory action of QUR and AA in sleeping mice. Additionally, an in silico study was undertaken to predict the involvement of GABA receptors in the sleep mechanism. Findings suggest that the pretreatment of QUR and AA modulated the onset and duration of action of the standard drugs in experimental animals. The acute administration of QUR and/or AA significantly ( p < 0.05) reversed the DZP-mediated onset of action and slightly reversed the duration of sleep time in comparison to the vehicle (control) group. A further combination of QUR or AA with the FLU resulted in an enhancement of the onset of action while reducing the duration of action, suggesting a FLU-like effect on the test animals. In in silico studies, AA and QUR showed good to moderate binding affinities with GABA A and GABA B receptors. Both QUR and AA produced a stimulatory-like effect on mice, possibly through the GABA A and GABA B receptor interaction pathways. Further studies are necessary to verify this activity and clarify the exact mechanism of action(s) involved.
    Keywords ascorbic acid ; quercetin ; Mus musculus ; stimulatory- like activity ; GABA receptor ; molecular docking ; Medicine ; R ; Pharmacy and materia medica ; RS1-441
    Subject code 630
    Language English
    Publishing date 2021-07-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Production, Transmission, Pathogenesis, and Control of Dengue Virus

    Muhammad Torequl Islam / Cristina Quispe / Jesús Herrera-Bravo / Chandan Sarkar / Rohit Sharma / Neha Garg / Larry Ibarra Fredes / Miquel Martorell / Mohammed M. Alshehri / Javad Sharifi-Rad / Sevgi Durna Daştan / Daniela Calina / Radi Alsafi / Saad Alghamdi / Gaber El-Saber Batiha / Natália Cruz-Martins

    BioMed Research International, Vol

    A Literature-Based Undivided Perspective

    2021  Volume 2021

    Abstract: Dengue remains one of the most serious and widespread mosquito-borne viral infections in human beings, with serious health problems or even death. About 50 to 100 million people are newly infected annually, with almost 2.5 billion people living at risk ... ...

    Abstract Dengue remains one of the most serious and widespread mosquito-borne viral infections in human beings, with serious health problems or even death. About 50 to 100 million people are newly infected annually, with almost 2.5 billion people living at risk and resulting in 20,000 deaths. Dengue virus infection is especially transmitted through bites of Aedes mosquitos, hugely spread in tropical and subtropical environments, mostly found in urban and semiurban areas. Unfortunately, there is no particular therapeutic approach, but prevention, adequate consciousness, detection at earlier stage of viral infection, and appropriate medical care can lower the fatality rates. This review offers a comprehensive view of production, transmission, pathogenesis, and control measures of the dengue virus and its vectors.
    Keywords Medicine ; R
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher Hindawi Limited
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Anxiolytic-like Effect of Quercetin Possibly through GABA Receptor Interaction Pathway

    Md. Shahazul Islam / Rajib Hossain / Taukir Ahmed / Md. Mizanur Rahaman / Khattab Al-Khafaji / Rasel Ahmed Khan / Chandan Sarkar / Mehedi Hasan Bappi / Edlane Martins de Andrade / Isaac Moura Araújo / Henrique Douglas Melo Coutinho / Grażyna Kowalska / Radosław Kowalski / Muhammad Asif Hanif / Muhammad Torequl Islam

    Molecules, Vol 27, Iss 7149, p

    In Vivo and In Silico Studies

    2022  Volume 7149

    Abstract: Scientific evidence suggests that quercetin (QUR) has anxiolytic-like effects in experimental animals. However, the mechanism of action responsible for its anxiolytic-like effects is yet to be discovered. The goal of this research is to assess QUR’s ... ...

    Abstract Scientific evidence suggests that quercetin (QUR) has anxiolytic-like effects in experimental animals. However, the mechanism of action responsible for its anxiolytic-like effects is yet to be discovered. The goal of this research is to assess QUR’s anxiolytic effects in mouse models to explicate the possible mechanism of action. After acute intraperitoneal (i.p.) treatment with QUR at a dose of 50 mg/kg (i.p.), behavioral models of open-field, hole board, swing box, and light–dark tests were performed. QUR was combined with a GABAergic agonist (diazepam) and/or antagonist (flumazenil) group. Furthermore, in silico analysis was also conducted to observe the interaction of QUR and GABA (α5), GABA (β1), and GABA (β2) receptors. In the experimental animal model, QUR had an anxiolytic-like effect. QUR, when combined with diazepam (2 mg/kg, i.p.), drastically potentiated an anxiolytic effect of diazepam. QUR is a more highly competitive ligand for the benzodiazepine recognition site that can displace flumazenil (2.5 mg/kg, i.p.). In all the test models, QUR acted similar to diazepam, with enhanced effects of the standard anxiolytic drug, which were reversed by pre-treatment with flumazenil. QUR showed the best interaction with the GABA (α5) receptor compared to the GABA (β1) and GABA (β2) receptors. In conclusion, QUR may exert an anxiolytic-like effect on mice, probably through the GABA-receptor-interacting pathway.
    Keywords anxiety ; quercetin ; GABAergic system ; in vivo study ; molecular docking ; Organic chemistry ; QD241-441
    Subject code 150
    Language English
    Publishing date 2022-10-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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