PREVALENCE OF PARASITES OF WATER BUFFALOES IN BANGLADESH

Islam, F.M.S.,Rahman, M.H.,Chowdhury, S.M.Z.H. Asian Australasian Association of Animal Productio 1992 Animal Bioscience Vol.5 No.4

A total of 480 live buffaloes and 180 visceral samples from Dhaka, Mymensingh, Bogura and Rajshahi were examined for the presence of parasites of water buffaloes in Bangladesh during September, 1988 to August, 1989. The recorded parasites were eight trematodes, two cestodes, fourteen nematodes, two protozoa and two arthropods. The trematodes were Fasciola gigantica (18.9%-46.4%). Paramphistomes (Gigantocotyl explanatum, Ceylonocotyl scoliocoelium, Cotylophoron cotylophorum and Gastrothylax crumenifer (29.5%-48.3%). Schistosoma indicum (1.6%-31.6%), S. spindale (13.9%-27.7%) and S. nasalis (4.6%-8.3%). The cestodes were Hydatid cyst (24.4%), Cysticercus tenuicollis (11.1%). The nematodes were Strongyloides papillosus (14.8%-21.6%), Capillaria spp. (C. bilobata, C. bovis) (8.5%-20.0%), Setaria digitata (7.2%), Onchocerca armillata (27.2%), Thelazia rhodesii (2.3%), Gongylonema pulchrum (3.9%), Oesophagostomum radiatum (6.6%-41.6%), Hookworms (Agriostomum vryburgi, Bunostomum phlebotomum) (8.1%-17.2%), Trichostrongylus axei (11.2%-21.6%), Mecistocirrus digitatus & Haemonchus contortus (15.2%-25.5%) and Toxocara vitulorum (1.1%-9.8%). The protozoa were Eimeria zuerni (2.3%) and Trypanosoma theileri (0.4%). The arthropods were Haemaphysalis bispinosa (8.1%) and Haematopinus tuberculatus (34.6%).

The comparison of naturally weathered oil and artificially photo-degraded oil at the molecular level by a combination of SARA fractionation and FT-ICR MS

Islam, A.,Cho, Y.,Yim, U.H.,Shim, W.J.,Kim, Y.H.,Kim, S. Elsevier Scientific Pub. Co 2013 Journal of hazardous materials Vol.263 No.2

Two sets of oil samples, one obtained from different weathering stages of the M/V Hebei Spirit oil spill site and the other prepared by an in vitro photo-degradation experiment, were analyzed and compared at the molecular level by atmospheric pressure photo-ionization coupled with Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). For a more detailed comparison at the molecular level, the oil samples were separated into saturate, aromatic, resin, and asphaltene (SARA) fractions before MS analysis. Gravimetric analysis of the SARA fractions revealed a decreased weight percentage of the aromatic fraction and an increased resin fraction in both sets of samples. Molecular-level investigations of the SARA fractions showed a significant reduction in the S<SUB>1</SUB> class in the saturate fraction and increase of S<SUB>1</SUB>O<SUB>1</SUB> class compounds with high DBE values in resin fraction. Levels of N<SUB>1</SUB> and N<SUB>1</SUB>O<SUB>1</SUB> class compounds resulting in protonated ions (presumably basic nitrogen compounds) increased after degradation compared to compounds generating molecular ions (presumably non-basic nitrogen compounds). This study revealed changes occurring in heteroatom polar species of crude oils such as sulfur and nitrogen containing compounds that have not been easily detected with conventional GC based techniques.

Performance of Crossbred Sahiwal Cattle at the Pabna Milkshed Area in Bangladesh

Islam, S.S.,Bhuiyan, A.K.F.H. Asian Australasian Association of Animal Productio 1997 Animal Bioscience Vol.10 No.6

The present study analysed the various productive and reproductive characteristics of 1/2 Pabna Milking Cows (PMC)-1/2 Sahiwal (S) and 1/4 PMC-3/4 S collected from the Pabna milkshed area at Baghabarighat, Sirajgonj, Bangladesh. The studied traits were birth weight (BWT), age at puberty (AP), number of services per conception (NSC), post partum heat period (PPHP), gestation period (GP), daily milk yield (DMY), lactational production (LP), lactation length (LL), fat percentage and solids-not-fat percentage (SNFP). Five individual Sahiwal sires were used for the upgrading of Pabna Milking Cows. The used data covered from 1987 to 1994. Least-squares analysis of variance showed that genetic group had a significant effect on BWT (P < 0.05), AP (p < 0.01), DMY (p < 0.01), LP (p < 0.001), LL (p < 0.05), FP (p < 0.05) and SNFP (p < 0.01). Genetic group had non-significant effect on NSC, GP and PPHP. The effect of sire was significant on BWT (p < 0.01), NSC (p < 0.01), LP (p < 0.05) and LL (p < 0.05). The AP, NSC, DMY, LP, LL and SNFP were higher in 1/2 PMC-1/2S cows; BWT and PPHP were higher in 1/4 PMC-3/4S but GP and FP were almost same in both genetic groups. From this study it may be concluded that production and use of 1/2 PMC-1/2S would seem more profitable for commercial milk production in the Bangladesh Milk Producers' Cooperative Union Limited (BMPCUL) area and at the same time emphasis should be given on rigorous sire selection.

A high affinity kidney targeting by chitobionic acid-conjugated polysorbitol gene transporter alleviates unilateral ureteral obstruction in rats

Islam, M.A.,Kim, S.,Firdous, J.,Lee, A.Y.,Hong, S.H.,Seo, M.K.,Park, T.E.,Yun, C.H.,Choi, Y.J.,Chae, C.,Cho, C.S.,Cho, M.H. IPC Science and Technology Press 2016 Biomaterials Vol.102 No.-

<P>Aside from kidney transplantation a procedure which is exceedingly dependent on donor-match and availability leading to excessive costs there are currently no permanent treatments available which reverse kidney injury and failure. However, kidney-specific targeted gene therapy has outstanding potential to treat kidney-related dysfunction. Herein we report a novel kidney-specific targeted gene delivery system developed through the conjugation of chitobionic acid (CBA) to a polysorbitol gene transporter (PSGT) synthesized from sorbitol diacrylate and low molecular weight polyethylenimine (PEI) carrying hepatocyte growth factor (HGF) gene to alleviate unilateral ureteral obstruction (UUO) in rats. CBA-PSGT performed exceptionally well for targeted delivery of HGF to kidney tissues compared to its non-targeted counterparts (P < 0.001) after systemic tail-vein injection and significantly reduced the UUO symptoms, returning the UUO rats to a normal health status. The kidney-targeted CBA-PSGT-delivered HGF also strikingly reduced various pathologic and molecular markers in vivo such as the level of collagens (type I and II), blood urea nitrogen (BUN), creatinine, and the expressions of ICAM-1, TIMP-1 and alpha-S1VIA which play a critical role in obstructive kidney functions. Therefore, CBA-PSGT should be further investigated because of its potential to alleviate UUO and kidney-related diseases using high affinity kidney targeting. (C) 2016 Elsevier Ltd. All rights reserved.</P>

Phosphoric acid doped sulfonated poly(tetra phenyl isoquinoline ether sulfone) copolymers for high temperature proton exchange membrane potential application

Seo, D.W.,Lim, Y.D.,Hossain, M.A.,Lee, S.H.,Lee, H.C.,Jang, H.H.,Islam, Md.M.,Kim, W.G. Pergamon Press ; Elsevier Science Ltd 2013 International journal of hydrogen energy Vol.38 No.1

Phosphoric acid-doped sulfonated poly(tetra phenyl isoquinoline ether sulfone)s (PA-SPTPIESs) were successfully synthesized for high temperature proton exchange membrane. Poly(tetra phenyl ether ketone sulfone)s (PTPEKS) were prepared from 1,2-bis(4-fluorobenzoyl)-3,4,5,6-tetraphenyl benzene (BFBTPB) and bis(4-fluorohenyl) sulfone with bis(4-hydroxyphenyl) sulfone. The synthesis of the poly(tetra phenyl isoquinoline ether sulfone)s (PTPIESs), was carried out via an intramolecular ring-closure reaction of dibenzoylbenzene of PTPEKS with benzylamine. The sulfonated poly(tetra phenyl isoquinoline ether sulfone)s (SPTPIESs) were obtained by following sulfonation with concentrated sulfuric acid and doped by phosphoric acid. Different contents of sulfonated unit on PTPIESs (8, 12, 16 mol% of BFBTPB) and PA-SPTPIESs were studied by FT-IR, <SUP>1</SUP>H NMR spectroscopy, and thermogravimetric analysis (TGA). Strong acid-base interaction effect between poly benzisoquinoline (PBI) and sulfonic acid groups formed ionic crosslinking network between polymer chains. The ion exchange capacity (IEC) and proton conductivity of PA-SPTPIESs were evaluated with degree of sulfonation and doping of phosphoric acid.

Effect of Sea Tangle (Laminaria japonica) and Charcoal Supplementation as Alternatives to Antibiotics on Growth Performance and Meat Quality of Ducks

Islam, M.M.,Ahmed, S.T.,Kim, Y.J.,Mun, H.S.,Kim, Y.J.,Yang, C.J. Asian Australasian Association of Animal Productio 2014 Animal Bioscience Vol.27 No.2

A total of 150 growing ducks were assigned to five dietary treatments to study the effect of sea tangle and charcoal (STC) supplementation on growth performance and meat characteristics in a completely randomized design. There were six replicates and five ducklings in each replication. The five dietary treatments were control, antibiotic, and 0.1%, 0.5%, and 1% STC supplemented diets. No significant differences were found on ADG, ADFI, and gain:feed among treatments in different weeks. The overall (0 to 3 weeks) ADFI decreased in antibiotic treatment (p<0.05) whereas the gain:feed increased significantly upon 1.0% STC supplementation compared to control (p<0.05). No significant variation was found in meat chemical composition except crude fat content which was high in 1.0% STC dietary group (p<0.05). Meat cholesterol was reduced in 0.1% STC group (p<0.05) compared to other dose levels while serum cholesterol was unaffected. High density lipoprotein (HDL) content was high in 1.0% STC (p<0.05) and low density lipoprotein (LDL) was low in 0.1% and 1.0% STC dietary groups (p = 0.06). No significant effect was found on the thiobarbituric acid reactive substances (TBARS) of fresh meat, whereas the TBARS value of meat preserved for 1 week was reduced significantly in STC dietary groups (p<0.05). The 0.1% STC dietary group showed an increased myristic acid (p = 0.07) content whereas, the content of eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids increased in STC supplementation than antibiotic group (p<0.05). An increased concentration of omega-3 fatty acids and a reduced ratio of n-6/n-3 PUFA ratio was found upon 1.0% STC supplementation compared to antibiotic dietary group (p<0.05). Therefore, 1.0% STC dietary supplementation can be used as alternatives to antibiotics in duck production.

Extraction of diesel from contaminated soil using subcritical water

Islam, M. N.,Park, H. S.,Park, J. H. Springer Science + Business Media 2015 Environmental Earth Sciences Vol.74 No.4

Human exposure of hazardous elements from different urban soils in Bangladesh

Islam, Md.S.,Ahmed, Md.K.,Al-Mamun, Md.H. Techno-Press 2016 Advances in environmental research Vol.5 No.2

In order to evaluate the contamination and health risk, levels of six hazardous elements i.e., Cr, Ni, Cu, As, Cd and Pb in soils of 12 different land-uses were measured. The average concentration of Cu, Cr, Ni, Pb, As and Cd in soils were 267, 239, 206, 195, 58 and 16 mg/kg, respectively. Levels of each metal exceeded the environmental action level for soils, which could pose significant risk to human. The metal concentrations were subsequently used to establish hazard indices (for adults and children) where the 5th and 95th percentile values were used to derive the hazard index through different exposure pathways (ingestion, dermal contact and inhalation). Considering the total exposure through each of the three pathways, the hazard index elucidates that there was a potency of non-cancer risk at most of the sites for both the adults and children. The findings of this study suggested that different land-use soils were severely contaminated with hazardous elements and attention is needed on the potential health risks to the exposed inhabitants.

Thermodynamic and kinetic study for subcritical water extraction of PAHs

Islam, M.N.,Jo, Y.T.,Jung, S.K.,Park, J.H. Korean Society of Industrial and Engineering Chemi 2013 Journal of industrial and engineering chemistry Vol.19 No.1

Four models were used to describe the subcritical water extraction' (SCWE) kinetics of polycyclic aromatic hydrocarbons (PAHs) at elevated temperatures in this work. The subcritical water extraction profiles obtained at temperatures of 200<SUP>o</SUP>C and 250<SUP>o</SUP>C were fitted with four models to presume the extraction mechanism parameters which could provide conceptual design to develop scale up methodology from laboratory SCWE devices. Among the four models, the two-site kinetic desorption model gave the best description of SCWE of phenanthrene, fluoranthene, and pyrene. Both the model analysis and experimental results suggested that the first desorption step is more important than the volumetric mass transfer process in this study. The desorption activation energy attained for extraction of phenanthrene, fluoranthene, and pyrene in this study were calculated to be 57, 52, and 70kJ/mol, respectively. Conclusively, the model analysis could give information on the controlling step of PAHs extraction in SCWE process.

Ultrasonic alignment of bio-functionalized magnetic beads and live cells in PDMS micro-fluidic channel.

Islam, Afroja T,Siddique, Ariful H,Ramulu, T S,Reddy, Venu,Eu, Young-Jae,Cho, Seung Hyun,Kim, CheolGi Kluwer Academic Publishers 2012 Biomedical microdevices Vol.14 No.6

<P>In this work, we demonstrated the alignment of polystyrene latex microspheres (diameter of 1 ~45 μm), bio-functionalized superparamagnetic beads (diameter 2.8 μm), and live cells (average diameter 1 ~2 μm) using an ultrasonic standing wave (USW) in a PDMS microfluidic channel (330 μm width) attached on a Si substrate for bio-medical applications. To generate a standing wave inside the channel, ultrasound of 2.25 MHz resonance frequency (for the channel width) was applied by two ultrasound transducers installed at both sides of the channel which caused the radiation force to concentrate the micro-particles at the single pressure nodal plane of USW. By increasing the frequency to the next resonance condition of the channel, the particles were concentrated in dual nodal planes. Migration time of the micro-particles towards the single nodal plane was recorded as 108 s, 17 s, and 115 s for polystyrene particles of 2 μm diameter, bio-functionalized magnetic beads, and live cells, respectively. These successful alignments of the bio-functionalized magnetic beads along the desired part of the channel can enhance the performance of a sensor which is applicable for the bio-hybrid system and the alignment of live cells without any damage can be used for sample pre-treatment for the application of lab-on-a-chip type bioassays.</P>