This study aimed to find out that a cup of tea is or is not safe for human health from microbial contamination and to point out the antimicrobial property of made tea liquor. Different made tea brands were collected randomly from different super shop of Dhaka city. The Association of Official Agricultural Chemists (AOAC), 2005 was used as official methods of analysis. The Standard Plate Count (SPC) technique was used for total microbial load, yeast and fungal count. Most Probable Number (MPN) technique was used for the enumeration of coliform in tea samples. Bacteria, yeast, mould and coliform were observed before and after boiling in all studied the samples. Before boiling, total microbial load and coliform were found at significantly higher of its’ acceptable limit (p<0.05) whereas yeast and fungus were found of its’ acceptable limit (p>0.05). After boiling, only coliform was observed significantly higher in all except Tetley tea at its’ non-acceptable limit (p<0.05). Fecal coliform was not present at every stage of this study. Made tea liquor has shown to have antimicrobial property. Boiling in tea preparation and its’ liquor antimicrobial property considerably reduced the level of microbial load to safe level for public consumption.

Introduction The time to start Antenatal Care (ANC) check-up is very significant because it determines the way to resolve complications and remedies during pregnancy. Different parameters play important roles in participating ANC in a society. A global consensus gives us the idea that most tribal people living in remote areas are far from basic needs related to education, employment, and affordable healthcare. The study aimed to delve into delayed ANC practices and the factors affecting the decision to receive ANC among tribal women dwelling in the Chittagong Hill Tracts (CHT) of Bangladesh. Methods This paper is a quantitative study. Interview schedule or questionnaire was mainly used as an instrument for data collection from 556 married women having babies for less than one year. Multinomial logistic regression was performed to determine significant factors related to the time of the introduction of ANC. Results Only 16.4% of the women had started to receive ANC in the early stage of pregnancy (≤3 months) and 13.5%, after three months (delayed ANC) of their pregnancies. 70% did not seek ANC. The result found that one-third (29.9%) of the pregnant women wanted ANC from a trained doctor, but only 16.4% initiated attendance within three months of the pregnancy. Conclusions The study results suggest that specific efforts are needed to advance the socio-economic status of the tribal people; they need to increase the educational level of women and their husbands, build their nearest health centers, and strengthen family planning programs.

OBJECTIVETo investigate mosquitocidal effects of ethanolic extract of flowers of Tagetes erecta (T. erecta) and its chloroform and petroleum ether soluble fractions against the larvae of Culex quinquefasciatus (Cx. quinquefasciatus).

METHODSThe fresh flowers of T. erecta were extracted in cold with ethanol (5.0 L) and after concentration, the ethanol extract was fractionated with chloroform and petroleum ether to afford a brownish syrupy suspension of ethanol extract (50.0 g), petroleum ether soluble fraction (18.6 g) and chloroform soluble fraction (23.8 g). The larvicidal effect of ethanol extract and their solvent fractions were determined by the standard procedure of WHO against different instars of Cx. quinquefasciatus.

RESULTSAmong the tested samples the chloroform soluble fractions showed the highest toxicity and consequently, the lowest LC50 values (14.14 µg/mL, 17.06 µg/mL, 36.88 µg/mL and 75.48 µg/mL) for all the instars larvae of Cx. quinquefasciatus. The larvae showed comparative tolerance in the course of increasing age and time.

CONCLUSIONSIt can be concluded that the flowers of T. erecta are very effective natural larvicide and could be useful against Cx. quinquefasciatus.

Animals ; Culex ; drug effects ; Flowers ; chemistry ; Insecticides ; pharmacology ; Lethal Dose 50 ; Parasitic Sensitivity Tests ; Plant Extracts ; pharmacology ; Tagetes ; chemistry

A phytochemical study on the flowe r of Calotropis gigantea (Linn.) using silica gel column chromatography and preparative thin layer chromatography, led to the first time isolation of Di-(2-ethylhexyl) phthalate (compound 1) and anhydrosophoradiol-3-acetate (compound 2). The structures of these compounds were confirmed by spectroscopic analyses (IR, HRTOFMS and NMR). The antibacterial and antifungal activities of ethyl acetate extract, compound 1 and compound 2 were measured using the disc diffusion method. Ethyl acetate extract and compound 1 presented better results than compound 2. The minimum inhibitory concentrations (MICs) of the extract and compounds were found to be in the range of 16~128 microg/ml. The cytotoxicity (LC50) against brine shrimp nauplii (Artemia salina) were also evaluated and found to be 14.61 microg/ml for ethyl acetate, 9.19 microg/ml for compound 1 and 15.55 microg/ml for compound 2.
Acetates ; Artemia ; Calotropis ; Chromatography ; Chromatography, Thin Layer ; Diffusion ; Flowers ; Microbial Sensitivity Tests ; Phthalic Acids ; Salts ; Silica Gel

Mining interesting patterns from DNA sequences is one of the most challenging tasks in bioinformatics and computational biology. Maximal contiguous frequent patterns are preferable for expressing the function and structure of DNA sequences and hence can capture the common data characteristics among related sequences. Biologists are interested in finding frequent orderly arrangements of motifs that are responsible for similar expression of a group of genes. In order to reduce mining time and complexity, however, most existing sequence mining algorithms either focus on finding short DNA sequences or require explicit specification of sequence lengths in advance. The challenge is to find longer sequences without specifying sequence lengths in advance. In this paper, we propose an efficient approach to mining maximal contiguous frequent patterns from large DNA sequence datasets. The experimental results show that our proposed approach is memory-efficient and mines maximal contiguous frequent patterns within a reasonable time.
Base Sequence ; Computational Biology ; Databases, Nucleic Acid ; DNA ; Mining

Pattern discovery in biological sequences (e.g., DNA sequences) is one of the most challenging tasks in computational biology and bioinformatics. So far, in most approaches, the number of occurrences is a major measure of determining whether a pattern is interesting or not. In computational biology, however, a pattern that is not frequent may still be considered very informative if its actual support frequency exceeds the prior expectation by a large margin. In this paper, we propose a new interesting measure that can provide meaningful biological information. We also propose an efficient index-based method for mining such interesting patterns. Experimental results show that our approach can find interesting patterns within an acceptable computation time.
Base Sequence ; Computational Biology ; DNA ; Mining

Objective: To evaluate the protective role of leaves of Moringa oleifera (M. oleifera) Lam. against arsenic-induced toxicity in mice.Methods:non-treated control group while, the second, third, and fourth groups were treated with M.oleifera leaves (50 mg/kg body weight per day), sodium arsenite (10 mg/kg body weight per day) and sodium arsenite plus M. oleifera leaves, respectively. Serum indices related to cardiac, liver and renal functions were analyzed to evaluate the protective effect of Moringa leaves on arsenic-induced effects in mice.Results:Swiss albino male mice were divided into four groups. The first group was used as induced elevation of triglyceride, glucose, urea and the activities of alkaline phospatase, aspartate aminotransferase and alanine aminotransferase in serum. M. oleifera leaves also prevented the arsenic-induced perturbation of serum butyryl cholinesterase activity, total cholesterol and high density lipoprotein cholesterol.Conclusions:The results indicate that the leaves of M. oleifera may be useful in reducing the It revealed that food supplementation of M. oleifera leaves abrogated the arsenic-effects of arsenic-induced toxicity.

OBJECTIVETo evaluate the antitumor activity of Manilkara zapota (M. zapota) L. stem bark against Ehrlich ascites carcinoma (EAC) in Swiss albino mice.

METHODSThe in vivo antitumour activity of the ethyl acetate extract of stem bark of M. zapota L. (EASM) was evaluated at 50, 100 and 200 mg/kg bw against EAC using mean survival time. After administration of the extract of M. zapota, viable EAC cell count and body weight in the EAC tumour hosts were observed. The animal was also observed for improvement in the haematological parameters (e.g., heamoglobin content, red and white blood cells count and differential cell count) after EASM treatment.

RESULTSIntraperitoneal administration of EASM reduced viable EAC cells, increased the survival time, and restored altered haematological parameters. Significant efficacy was observed for EASM at 100 mg/kg dose (P<0.05).

CONCLUSIONSIt can be concluded that the ethyl acetate extract of stem bark of M. zapota L. possesses significant antitumour activity.

Animals ; Antineoplastic Agents ; isolation & purification ; therapeutic use ; Body Weight ; Carcinoma, Ehrlich Tumor ; drug therapy ; Cell Survival ; drug effects ; Disease Models, Animal ; Injections, Intraperitoneal ; Male ; Manilkara ; chemistry ; Mice ; Plant Bark ; chemistry ; Plant Extracts ; isolation & purification ; therapeutic use ; Survival Analysis ; Treatment Outcome

The crude ethanol extracts (stem and fruits), their fractions and two triterpenes, beta-Amyrin and 12-Oleanene 3beta, 21beta-diol, isolated as a mixture from the chloroform soluble fraction of an ethanolic extract of Duranta repens stem, were evaluated for antibacterial, antifungal activities by the disc diffusion method and cytotoxicity by brine shrimp lethality bioassay. The structures of the two compounds were confirmed by IR, 1H-NMR, 13C-NMR and LC-MS spectral data. The chloroform soluble fraction of stem and ethanol extract of fruits possess potent antishigellosis activity and also exhibited moderate activity against some pathogenic bacteria and fungi but the isolated compound 1 (mixture of beta-Amyrin and 12-Oleanene 3beta, 21beta-diol) showed mild to moderate inhibitory activity to microbial growth. The minimum inhibitory concentrations (MICs) of the extracts (stem and fruits), their fractions and compound 1 were found to be in the range of 32~128 microg/ml. The chloroform soluble fractions of stem and ethanol extract of fruit showed significant cytotoxicity with LC50 value of 0.94 microg/ml and 0.49 microg/ml, respectively against brine shrimp larvae.
Artemia ; Bacteria ; Biological Assay ; Chloroform ; Complex Mixtures ; Diffusion ; Ethanol ; Fruit ; Fungi ; Larva ; Microbial Sensitivity Tests ; Oleanolic Acid ; Salts ; Triterpenes

OBJECTIVETo evaluate the protective role of leaves of Moringa oleifera (M. oleifera) Lam. against arsenic-induced toxicity in mice.

METHODSSwiss albino male mice were divided into four groups. The first group was used as non-treated control group while, the second, third, and fourth groups were treated with M. oleifera leaves (50 mg/kg body weight per day), sodium arsenite (10 mg/kg body weight per day) and sodium arsenite plus M. oleifera leaves, respectively. Serum indices related to cardiac, liver and renal functions were analyzed to evaluate the protective effect of Moringa leaves on arsenic-induced effects in mice.

RESULTSIt revealed that food supplementation of M. oleifera leaves abrogated the arsenic-induced elevation of triglyceride, glucose, urea and the activities of alkaline phospatase, aspartate aminotransferase and alanine aminotransferase in serum. M. oleifera leaves also prevented the arsenic-induced perturbation of serum butyryl cholinesterase activity, total cholesterol and high density lipoprotein cholesterol.

CONCLUSIONSThe results indicate that the leaves of M. oleifera may be useful in reducing the effects of arsenic-induced toxicity.