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Article ; Online: Differential persistence of neutralizing antibody against SARS-CoV-2 in post immunized Bangladeshi population

Dipa Roy / Md. Mosfequr Rahman / Arnaba Saha Chaity / Md. Abu Reza / Ariful Haque

Scientific Reports, Vol 12, Iss 1, Pp 1-

2022 Volume 11

Abstract: Abstract Development of effective vaccines have been immensely welcomed by the world to prevent the transmission of SARS-CoV-2. However, the duration and clinical implications of antibody-mediated natural immunity in SARS-CoV-2 have not been adequately ... ...

Abstract	Abstract Development of effective vaccines have been immensely welcomed by the world to prevent the transmission of SARS-CoV-2. However, the duration and clinical implications of antibody-mediated natural immunity in SARS-CoV-2 have not been adequately elucidated alongside some other immune system transforming factors. In a cohort study, we measured NAb titer following the 2nd immunization dosage of the CoviShield (AZD1222) vaccine. The enzyme-linked immunoassay was used to look for SARS-CoV-2—specific NAb. We measured NAb at 30 days after the 2nd dosage of immunization and > 96% titer was detected in 42.9% of subjects, but only 5.1% of subjects retained the same level after 180 days. The median NAb titer dropped significantly, from 92% at 30 days to 58% at 180 days (p < 0.001). Besides, there were significant differences observed in NAb titer after 180 days by age, sex, COVID-19 infection, tobacco use, and asthma patients. However, SARS-CoV-2 infection along with two dosages of immunization upheld NAb titer (p < 0.001) even at the end of the study period.
Keywords	Medicine ; R ; Science ; Q
Language	English
Publishing date	2022-08-01T00:00:00Z
Publisher	Nature Portfolio
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: In vitro antioxidant and cytotoxicity activities and in silico anticancer property of methanolic leaf extract of Leucas indica

Tasmina Ferdous Susmi / Md Moshiur Rahman Khan / Atikur Rahman / Shafi Mahmud / Md Abu Saleh / Md Abu Reza / Md Sifat Rahi

Informatics in Medicine Unlocked, Vol 31, Iss , Pp 100963- (2022)

2022

Abstract: The investigation of traditional medicinal plants is gaining prime importance day by day due to having a wide range of bioactive phytochemicals. The presence of diverse bioactive compounds makes medicinal plants more demandable for curing several ... ...

Abstract	The investigation of traditional medicinal plants is gaining prime importance day by day due to having a wide range of bioactive phytochemicals. The presence of diverse bioactive compounds makes medicinal plants more demandable for curing several diseases, such as inflammatory diseases, diabetes, and cancer. Leucas indica is commonly found throughout Bangladesh and traditionally used for medical purposes because of its great medicinal value to the folks. The present study addresses the evaluation of in vitro qualitative phytochemical, antioxidant, and cytotoxicity activities as well as in silico anticancer activity of methanolic leaf extract. Several standard methods were used for phytochemical analysis, which showed the presence of different phytochemicals. The plant exhibited adequate antioxidant activities through DPPH and H2O2 free radical scavenging assays. Moreover, promising cytotoxicity activity was estimated through a brine shrimp lethality assay. In addition, the present work emphasizes the in silico analysis, which finds the anticancer activity of the experimental plant based on pharmacokinetic analysis, molecular docking, and MD simulation. Four phytochemicals of the plant were selected from the literature and docked against two important protein kinases (AMPK and CDK6) that have a role in cancer progression. The docking revealed an encouraging binding score with a maximum score of 9.2 kCal/mol, where all the ligand-protein complexes showed stable conditions during simulation. According to this analysis, it can be believed that the selected ligands indicate promising anticancer activity. Moreover, the comprehensive analysis of both in vitro and in silico data shows that the leaf could be a potent source of drug and could serve as an effective therapeutic in the future.
Keywords	Leucas indica ; Antioxidant ; Cytotoxicity ; ADMET ; Molecular docking ; MD Simulation ; Computer applications to medicine. Medical informatics ; R858-859.7
Subject code	580
Language	English
Publishing date	2022-01-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Bioremediation potential of hydrocarbon degrading bacteria

Md. Forhad Hossain / Mst. Ambia Akter / Md. Sohanur Rahman Sohan / Dr. Nigar Sultana / Md Abu Reza / Kazi Md. Faisal Hoque

Saudi Journal of Biological Sciences, Vol 29, Iss 1, Pp 211-

isolation, characterization, and assessment

2022 Volume 216

Abstract: Oil contamination is a worldwide concern now. However, oil contaminated environment is enriched with microorganisms that can utilize petroleum oil and use hydrocarbon for their growth, nutrition and metabolic activities. In the present study, bacteria ... ...

Abstract	Oil contamination is a worldwide concern now. However, oil contaminated environment is enriched with microorganisms that can utilize petroleum oil and use hydrocarbon for their growth, nutrition and metabolic activities. In the present study, bacteria present in the oil contaminated soil were isolated by enrichment culture technique using Minimal Salt (MS) media supplemented with diesel oil and burned engine oil as a sole carbon source. The isolated bacteria were characterized by morphological and biochemical tests and identified by molecular tool through cycle sequencing method. Three isolates were morphologically characterized as gram-negative, cocci shaped and 16S rRNA sequence analysis revealed that the isolates are closely related to Pseudomonas sp., Acinetobacter sp., and Enterobacter sp. respectively. Growth condition was optimized at pH 7.0 and temperature 37 °C. All the isolates were susceptible to several antibiotics and they have no antagonistic effect with soil beneficial bacteria. Three isolates were grown in two different concentrations of diesel oil and burned engine oil (4% v/v and 8%, v/v) respectively. Study revealed that with increasing the concentration of diesel oil in the media the growth rate of all the isolates were decreased. In contrast, the growth rates of all the three isolates were increased, with increasing concentration of burned engine oil. In our study, all the isolates showed their degradation efficacy in 4% v/v diesel oil and in 8% v/v burned engine oil. So, our research clearly shows that the isolates could be potentially used for bioremediation purposes for cleaning up petroleum polluted area.
Keywords	Petroleum oil ; Burned engine oil ; Bioremediation and degradation ; Biology (General) ; QH301-705.5
Subject code	660
Language	English
Publishing date	2022-01-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
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Article ; Online: Whole genome sequencing data of Chromobacterium amazonense BASUSDA_45 isolated from soil in Bangladesh capable of degrading pesticide

Md Atikur Rahman / Khaled Mahmud Sujon / Mohammad Tanbir Habib / Md. Forhad Hossain / K.M.K.B. Ferdaus / K.M.F. Hoque / Zennat Ferdousi / Md Abu Reza

Data in Brief, Vol 46, Iss , Pp 108853- (2023)

2023

Abstract: This article reports the Chromobacterium amazonense BASUSDA_45 strain's draft genomic sequence. The bacterium was isolated from cypermethrin pesticide contaminated soil and then the sequencing was carried out. Initially de novo assembly of the raw ... ...

Abstract	This article reports the Chromobacterium amazonense BASUSDA_45 strain's draft genomic sequence. The bacterium was isolated from cypermethrin pesticide contaminated soil and then the sequencing was carried out. Initially de novo assembly of the raw sequences, trimming and quality check generates 125 contigs having N50 of 78,923. Further mapping of the contigs generated scaffolds. The genome contains 53 scaffolds with a total length of 4,295,151 bp having 62.30% GC content and N50 of 3,726,017. Annotation using Prokaryotic Genome Annotation Pipeline (PGAP) reveals 4181 genes among which 4096 were coding sequences, 76 tRNAs, 3 rRNAs, 4 noncoding RNAs. The raw sequence reads and annotated genome were uploaded to NCBI's Bioproject repository with the accession number PRJNA686506.
Keywords	WGS ; Pesticide ; Cypermethrin ; Microbial genomics ; Bioinformatics ; Sequence assembly ; Computer applications to medicine. Medical informatics ; R858-859.7 ; Science (General) ; Q1-390
Language	English
Publishing date	2023-02-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: R. vesicarius L. exerts nephroprotective effect against cisplatin-induced oxidative stress

Md. Mahmudul Hasan / Most. Sayla Tasmin / Ahmed M. El-Shehawi / Mona M. Elseehy / Md. Abu Reza / Ariful Haque

BMC Complementary Medicine and Therapies, Vol 21, Iss 1, Pp 1-

2021 Volume 12

Abstract: Abstract Background Cisplatin is an outstanding anticancer drug, but its use has been decreased remarkably due to sever nephrotoxicity. R. vesicarius L. is a leafy vegetable that is evident with anti-angeogenic, anti-inflammatory, anti-proliferative, ... ...

Abstract	Abstract Background Cisplatin is an outstanding anticancer drug, but its use has been decreased remarkably due to sever nephrotoxicity. R. vesicarius L. is a leafy vegetable that is evident with anti-angeogenic, anti-inflammatory, anti-proliferative, hepatoprotective, and nephroprotective potential. Therefore, this study was designed to inspect its methanol extract (RVE) for possible nephroprotective effect. Methods Primarily, in vitro antioxidant activity of RVE was confirmed based on 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging aptitude. Thereafter, Swiss Albino male mice were treated with cisplatin (2.5 mg/kg) for 5 successive days to induce nephrotoxicity. Recovery from nephrotoxicity was scrutinized by treating the animals with RVE (25, 50, and 100 mg/kg) intraperitoneally (i.p.) for the next 5 consecutive days. After completion of treatment, mice were sacrificed and kidneys were collected. Part of it was homogenized in sodium phosphate buffer for evaluating malondialdehyde (MDA) level, another part was used to evaluate gene (NQO1, p53, and Bcl-2) expression. Moreover, the hydrogen peroxide (H2O2) neutralizing capacity of RVE was evaluated in HK-2 cells in vitro. Finally, bioactive phytochemicals in RVE were determined using gas chromatography–mass spectrometry (GC-MS). Results RVE showed in vitro antioxidant activity in a dose-dependent fashion with 37.39 ± 1.89 μg/mL IC50 value. Treatment with RVE remarkably (p < 0.05) decreased MDA content in kidney tissue. Besides, the expression of NQO, p53, and Bcl-2 genes was significantly (p < 0.05) mitigated in a dose-dependent manner due to the administration of RVE. RVE significantly (p < 0.05) reversed the H2O2 level in HK-2 cells to almost normal. From GC-MS, ten compounds including three known antioxidants “4H-Pyran-4-one, 2, 3-dihydro-3,5-dihydroxy-6-methyl-”, “Hexadecanoic acid”, and “Squalene” were detected. The extract was rich with an alkaloid “13-Docosenamide”. Conclusion Overall, RVE possesses a protective effect against ...
Keywords	Cisplatin ; R. vesicarius ; Mice ; Kidney ; HK-2 cells ; Oxidative stress ; Other systems of medicine ; RZ201-999
Subject code	500
Language	English
Publishing date	2021-09-01T00:00:00Z
Publisher	BMC
Document type	Article ; Online
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Article: Cadmium tolerance is associated with the root-driven coordination of cadmium sequestration, iron regulation, and ROS scavenging in rice

Bari, Md Azizul / Ahmad Humayan Kabir / Md Abu Reza / Mst Salma Akther

Plant physiology and biochemistry. 2019 Mar., v. 136

2019

Abstract: Excess cadmium (Cd) is a serious threat to agriculture and the environment. High Cd availability showed no significant decline in growth, chlorophyll synthesis, soluble protein, cell and membrane stability in Sonarbangla (Cd-tolerant), while these were ... ...

Abstract	Excess cadmium (Cd) is a serious threat to agriculture and the environment. High Cd availability showed no significant decline in growth, chlorophyll synthesis, soluble protein, cell and membrane stability in Sonarbangla (Cd-tolerant), while these were severely affected in BRRI 72 (Cd-sensitive). Atomic absorption spectroscopy analysis demonstrated a huge increment of Cd and Fe in root and shoot of BRRI 72; however, Sonarbangla only exhibited a significant increase of Cd in roots. It suggests that excess Cd in Sonarbangla possibly retained in roots through vacuolar sequestration without interfering cell functions. This was further confirmed by the increased accumulation of cysteine, glutathione, and phytochelatin along with OsPCS1 and OsHMA3 upregulation, possibly facilitated by nitric oxide in roots of Sonarbangla. Further, Fe chelate reductase activity in conjunction with the genes (OsFRO1, OsNRAMP1, OsIRT1, and OsYSL15) associated with Fe availability significantly upregulated in BRRI 72 but not in Sonarbangla in response to Cd. It advises that Fe acquisition and transport were tightly regulated in Cd-tolerant Sonarbangla. Furthermore, elevated CAT, APX, GR, NO in root along with shoot sugar helps rice plants to withstand Cd-induced oxidative damage. Finally, reciprocal grafting combining Sonarbangla rootstock with either BRRI 72 or Sonarbangla scion showed Sonarbangla type tolerance along with no changes of H2O2 and Fe reductase activity in roots under high Cd. It indicates that the signal inducing the responses to adjust Cd stress is originated in the root system. These messages deliver essential background for further breeding program to produce Cd-free rice.
Keywords	atomic absorption spectrometry ; breeding programs ; cadmium ; chlorophyll ; cysteine ; enzyme activity ; gene expression regulation ; genes ; glutathione ; grafting (plants) ; hydrogen peroxide ; iron ; nitric oxide ; rice ; root systems ; roots ; rootstocks ; scions ; shoots ; sugars ; vacuoles
Language	English
Dates of publication	2019-03
Size	p. 22-33.
Publishing place	Elsevier Masson SAS
Document type	Article
ZDB-ID	742978-2
ISSN	1873-2690 ; 0981-9428
ISSN (online)	1873-2690
ISSN	0981-9428
DOI	10.1016/j.plaphy.2019.01.007
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Low-frequency glow discharge (LFGD) plasma treatment enhances maize (Zea mays L.) seed germination, agronomic traits, enzymatic activities, and nutritional properties

Md. Sohanur Rahman Sohan / Mahedi Hasan / Md. Forhad Hossain / Salek Ahmed Sajib / Khandaker Md. Khalid-Bin-Ferdaus / Ahmad Humayun Kabir / Md. Mamunur Rashid / Mamunur Rashid Talukder / Mona M. Elseehy / Ahmed M. El-Shehawi / Md Abu Reza

Chemical and Biological Technologies in Agriculture, Vol 9, Iss 1, Pp 1-

2022 Volume 17

Abstract: Abstract Background Plasma technology is an emerging sector in agriculture. The effect of low-frequency glow discharge (LFGD) plasma at medium pressure (10 torr) on maize morpho-physiological and agronomical behavior was investigated in the current ... ...

Abstract	Abstract Background Plasma technology is an emerging sector in agriculture. The effect of low-frequency glow discharge (LFGD) plasma at medium pressure (10 torr) on maize morpho-physiological and agronomical behavior was investigated in the current studies. The LFGD plasma act as a secondary messenger to improve maize production. This cutting-edge plasma technology can be used in agriculture to boost agronomic possibilities. Materials and methods Maize seeds were treated with LFGD Ar + Air gas plasma for 30 s, 60 s, 90 s, and 120 s. The gas ratio of Ar + Air was 1:99. Plasma was produced with a high voltage (1–6 kV) and low (3–5 kHz) frequency power supply across the electrodes. The internal pressure was maintained at ~ 10 torrs with a vacuum pump in the plasma chamber. Inside the plasma production chamber, the gas flow rate was maintained at 1 L/min. Results Effect of LFGD Ar + Air plasma on seed germination, and growth parameters including, shoot length, root length, fresh weight, dry weight, plant height, stem diameter, and chlorophyll were measured and in comparison with the control the parameter scores increased by 4.89%, 3.18%, 1.77%, 5.53%, 1.90%, 5.16%, 1.90%, 1.98%, respectively. The SEM image of the seeds surface demonstrated remarkable changes caused by plasma treatment. In roots, APX and SOD activities improved by only 0.022% and 0.64%, whereas, in shoots their activities showed a 0.014% and 0.25% increment compared to control. Further, H2O2, soluble protein, and sugar content increased by 0.12%, 0.33%, 2.50% and 1.15%, 1.41%, 2.99%, 1.16% in shoots and roots, respectively, while NO showed no significant changes in plants. Interestingly, notable improvement were found in nutritional properties (protein 0.32%, fat 0.96%, fiber 0.22%, ash 0.31%, grain iron 1.77%, shoots iron 7.61%, and manganese 6.25%), while the moisture content was reduced by 0.93% which might be useful in prolonged seed storage and the long life viability of the seeds. However, zinc (Zn) content in maize seedlings from ...
Keywords	LFGD ; Maize ; Germination ; Antioxidant enzyme activity ; Nutritional values ; Agriculture ; S
Subject code	630
Language	English
Publishing date	2022-01-01T00:00:00Z
Publisher	SpringerOpen
Document type	Article ; Online
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Article ; Online: Impact of LFGD (Ar+O2) plasma on seed surface, germination, plant growth, productivity and nutritional composition of maize (Zea mays L.)

Sumon Karmakar / Mutasim Billah / Mahedi Hasan / Sohanur Rahman Sohan / Md. Forhad Hossain / Kazi Md. Faisal Hoque / Ahmad Humayan Kabir / Md. Mamunur Rashid / Mamunur Rashid Talukder / Md Abu Reza

Heliyon, Vol 7, Iss 3, Pp e06458- (2021)

2021

Abstract: In this present study conducted with the LFGD (Low-Frequency Glow Discharge) (Ar + O2) plasma treated maize seeds, to inspect the effect on seed surface modifications, seed germination, growth, development, productivity and nutritional compositions of ... ...

Abstract	In this present study conducted with the LFGD (Low-Frequency Glow Discharge) (Ar + O2) plasma treated maize seeds, to inspect the effect on seed surface modifications, seed germination, growth, development, productivity and nutritional compositions of maize plants. This study reported that LFGD (Ar + O2) plasma treated maize seeds have a potential effect to change its smooth seed surfaces and, it becomes rougher. It also enhances the seed germination rate up to (15.88%), which might help to increase the shoot length (33.42%), root length (10.67%), stem diameter (13.37%), total chlorophyll content (46.93%), total soluble protein (52.48%), total soluble phenol (21.68%) and sugar (1.62%) concentrations in respect controls of our experimental plants. For this reason, the acceptable treatment duration for maize seeds were 30sec, 60sec, 90sec and 120sec. After treatment, the plants exhibited a significant increase in CAT, SOD, APX and GR activities in the leaves and roots, and also significantly changes in H2O2 (208.33 ± 5.87μ molg−1 FW) in the leaves and (61.13 ± 1.72μ molg−1 FW) in the roots, NO was (369.24 ± 213.19μ molg−1FW) and (1094.23 ± 135.44μ molg−1FW) in the leaves and roots. LFGD plasma treatment also contributed to enhancement of productivity (1.27%), nutritional (moisture, ash, fat, and crude fiber) compositions, and iron and zinc micro-nutrition concentrations of maize. From this research, LFGD (Ar + O2) plasma treatment showed a potential impact on the maize cultivation system, which is very effective tools and both in nationally and internationally alter the conventional cultivation system of maize. Because it promotes seed surface modification, improved germination rate, shoot length, root length, chlorophyll content, some of the growths related enzymatic activity, nutrient composition, iron, and zinc micro-nutrients and the productivity of maize.
Keywords	Maize (Zea mays L.) ; LFGD plasma ; Nutrition ; Iron ; Germination ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
Subject code	580
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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Article ; Online: A comparative study of biological potentiality and EAC cell growth inhibition activity of Phyllanthus acidus (L.) fruit pulp and seed in Bangladesh

Ajmeri Sultana Shimu / Masum Miah / Mutasim Billah / Sumon Karmakar / Sumon Chandro Mohanto / Ratna Khatun / Md. Abu Reza / Kazi Md. Faisal Hoque

Saudi Journal of Biological Sciences, Vol 28, Iss 3, Pp 2014-

2021 Volume 2022

Abstract: Medicinal plant-derived bioactive compounds have recently gained more interest in biological research as an important source of novel drug candidates. Phyllanthus acidus (L.) is a widely distributed herbal medicinal plant naturally used in Ayurvedic ... ...

Abstract	Medicinal plant-derived bioactive compounds have recently gained more interest in biological research as an important source of novel drug candidates. Phyllanthus acidus (L.) is a widely distributed herbal medicinal plant naturally used in Ayurvedic medicine in Bangladesh. The present study focused on exploring the biological potential as well as the inhibitory effect of EAC cell growth with a comparative analysis between Phyllanthus acidus fruit pulp and seed. Crude methanol extract of P. acidus (MEPA) fruit pulp and seed was assessed as DPPH and NO free radical scavengers. While Brine Shrimp lethality bioassay, the standard protocol of phytochemical screening and hemagglutination assay were performed successively to determine the toxic effect on normal cells, the identification of some crucial phytochemicals, and the existence of lectin protein. EAC (Ehrlich’s Ascites Carcinoma) cell growth inhibition was determined by hemocytometer and morphological changes of EAC cells were observed by a fluorescence microscope using Swiss albino mice. The IC50 value of MEPA fruit pulp and seed was obtained as 57.159 µg/ml and 288.743 µg/ml respectively where minimal toxic effects on Brine Shrimp nauplii demonstrates that it is a good source of natural antioxidant compounds. Again, MEPA fruit pulp and seed-mediated effective agglutination of mouse blood erythrocyte strongly support the presence of lectin protein. Furthermore, MEPA fruit pulp and seed extract-treated EAC cells showed 65.71% and 28.57% growth inhibition respectively. The fluorescent microscopic examination of EAC cells treated with MEPA fruit pulp has shown more remarkable structural changes in the nucleus than that of seed. Based on the above findings, the present study reveals that MEPA fruit pulp can be considered as a novel biological candidate for the treatment of fatal diseases shortly.
Keywords	Phyllanthus acidus ; Antioxidant ; Cytotoxicity ; Phytochemicals ; Lectin ; EAC cell ; Biology (General) ; QH301-705.5
Subject code	571
Language	English
Publishing date	2021-03-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
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Article ; Online: Extraction and optimisation of red pigment production as secondary metabolites from Talaromyces verruculosus and its potential use in textile industries

Zannatul Chadni / Md Habibur Rahaman / Israt Jerin / K.M.F Hoque / Md Abu Reza

Mycology, Vol 8, Iss 1, Pp 48-

2017 Volume 57

Abstract: Textile dyes and effluents are considered as one of the worst polluters of our priceless water sources and soils. New sources of natural pigments are getting particular research interests due to the toxicity produced by synthetic colouring agents. Plant ... ...

Abstract	Textile dyes and effluents are considered as one of the worst polluters of our priceless water sources and soils. New sources of natural pigments are getting particular research interests due to the toxicity produced by synthetic colouring agents. Plant sources are being explored extensively for natural pigments but inadequate yield of those sources hampered the progression. Apart from the enormous antibacterial applications, fungi may provide a readily available alternative source of natural pigments. Here, we isolated a fungal strain from spoiled mango which is capable of producing pigments suitable for textile dyeing. The spoiled mangoes were selected as a source of different fungi. Among them one particular fungal isolate was selected for its visible production of secondary metabolites. Molecular identification using internal transcribed spacer sequencing revealed the fungi as Talaromyces verruculosus strain. The growth and pigment production of the fungi was optimised to obtain highest yield. Extracted pigment was applied to cotton fabric following a standard dyeing procedure for natural pigment. Adequate colour yield and negative cytotoxicity result suggested that the fungi source of pigment could be a potential replacement for hazardous synthetic dyes.
Keywords	Talaromyces verruculosus ; secondary metabolite ; fungal pigment ; ITS sequencing ; textile dye ; Biology (General) ; QH301-705.5 ; Microbiology ; QR1-502
Subject code	660
Language	English
Publishing date	2017-01-01T00:00:00Z
Publisher	Taylor & Francis Group
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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