Effects of dietary squid oil on breeding performance and embryonic and larval development of butter catfish .

The present study was conducted to determine the effects of squid oil on the endangered butter catfish, to confer enhanced breeding with embryonic and larval development for promoting its aquaculture. A total of 360 fish were obtained from the Brahmaputra River, Mymensingh, Bangladesh, of which, 60 fish stocked in each tank having an initial weight and length of 16.35 ± 0.

Mechanochemical Approach towards Multi-Functionalized 1,2,3-Triazoles and Anti-Seizure Drug Rufinamide Analogs Using Copper Beads.

Highly regiospecific, copper-salt-free and neat conditions have been demonstrated for the 1,3-dipolar azide-alkyne cycloaddition (AAC) reactions under mechanochemical conditions. A group of structurally challenging alkynes and heterocyclic derivatives was efficiently implemented to achieve highly functionalized 1,4-disubstituted-1,2,3-triazoles in good to excellent yield by using the Cu beads without generation of unwanted byproducts. Furthermore, the high-speed ball milling (HSBM) strategy has also been extended to the synthesis of the commercially available pharmaceutical agent, Rufinamide, an antiepileptic drug (AED) and its analogues.

Development of a Sperm Cryopreservation Protocol for Critically Endangered Mohashol (Hamilton).

This study dealt with the development of a sperm cryopreservation protocol of . Sperm was collected from hormone-induced males and the concentration and pH of sperm were estimated as 4.3 ± 0.

Nutritional profile of wild, pond-, - and cage-cultured tilapia in Bangladesh.

The proximate, minerals, amino acid and fatty acid composition of wild, pond-, - and cage-cultured tilapia in Bangladesh were evaluated and varied significantly (p < 0.05). The major component of the tilapia was moisture (79.

Monitoring of pesticide residues from fish feed, fish and vegetables in Bangladesh by GC-MS using the QuEChERS method.

The use of pesticides in agricultural sectors is rising due to the growing demand for food in the world, but the presence of pesticide residues in agricultural commodities has become a major health concern for consumers and is associated with problems of food safety. Thus, the present study determined pesticide residues (17 organochlorine, 5 pyrethroid and 3 organophosphate) in 77 fish feed, 112 fish and 135 vegetables samples (total of 324) from the different locations in Bangladesh, using quick easy cheap effective rugged and safe (QuEChERS) extraction followed by gas chromatography-mass spectrometry (GC-MS) analysis. The 77 fish feed samples analyzed with this method appeared to be free of pyrethroid pesticide residues.

Prevalence of epilepsy in Bangladesh: Results from a national household survey.

Objective: To determine the prevalence and types of epilepsy in Bangladesh.

Methods: We conducted a nationwide population-based cross-sectional survey among Bangladeshi population of all ages, except children under one month. We surveyed 9839 participants (urban, 4918; rural, 4920) recruited at their households using multistage cluster sampling.

Recent advances in the synthesis of fluorinated compounds via an aryne intermediate.

The development of new methodologies for the synthesis of fluorinated organic molecules is in high demand due to their wide applications in agriculture and pharmaceutical sciences. Various strategies have been employed for this purpose for a long time. Arynes are well known synthetic intermediates and have gained the attention of synthetic chemists for the synthesis of various functionalized organic molecules.

Direct Analysis of Aqueous Solutions and Untreated Biological Samples Using Nanoelectrospray Ionization Mass Spectrometry with Pipette Tip in Series with High-Ohmic Resistor as Ion Source.

Commercially available disposable plastic pipette tip with the inner diameter of ca. 120 μm in series with a high-ohmic resistor (10 GΩ) was adapted as a low-cost alternative ion source for high-throughput nanoelectrospray mass spectrometry (nESI-MS) analysis of a variety of samples, especially aqueous solutions, without sample pretreatment. The use of high-ohmic resistor enabled the formation of stable electrospray of aqueous solutions at ambient conditions.

A study on the prevalence of heavy metals, pesticides, and microbial contaminants and antibiotics resistance pathogens in raw salad vegetables sold in Dhaka, Bangladesh.

The presence of undesirable heavy metals, pesticide residues, and microbial contaminants in fresh produces is a worldwide public health concern. This study was undertaken to evaluate the residual pesticides (Diazinon, Malathion, Cypermethrin, Dimethoate, Quinalphos, and Chloropyrofos), heavy metal contamination (Pb, Cd, and Cr), and microbiological quality and safety of 4 common raw salad vegetables (RSVs) samples from different local markets in Dhaka. Results showed the presence of heavy metals residues were within the acceptable limits of local and international standards.

Efficient method for isolation of exosomes from raw bovine milk.

Objective: This study aimed to establish a rapid and simple method for isolating exosomes from raw bovine milk and to compare the quality of the isolated exosomes with those isolated by a standard method involving ultracentrifugation (UC).

Methods: To remove caseins, which are major milk proteins consisting more than 80% of milk protein (35% in human breast milk) and hamper isolation and purification of exosomes, hydrochloride (HCl) was added to milk for isoelectric precipitation (IP). The effects of acidification on morphological features, particle size distribution, surface charge, and exosome surface proteins were analyzed by electron microscopy, tunable resistive pulse sensing (TRPS), and Western blot (WB) analysis, respectively.

Evaluation of artificially contaminated fish with formaldehyde under laboratory conditions and exposure assessment in freshwater fish in Southern Bangladesh.

Formalin can be added as preservative to fresh foods to prevent spoilage and extend shelf life. Formalin contains 37-40% formaldehyde, which is classified as carcinogenic to humans. To assess the public health risk associated with formaldehyde exposure in freshwater fish in Southern Bangladesh, formaldehyde concentrations (mg/kg) were determined in tilapia, Indian major carp rui, Chinese carp and a minor carp from local market and in laboratory simulations (0.

Vitamin D and Parathyroid Hormone Status in Female Garment Workers: A Case-Control Study in Bangladesh.

Despite the abundant sunlight, vitamin D deficiency is prevalent in South Asian countries including Bangladesh. Information on vitamin D level is insufficient in adults particularly in female garment workers in Bangladesh. This study was designed to evaluate the status of vitamin D, parathormone (PTH), calcium, and alkaline phosphatase (ALP) among the female garment workers in Bangladesh.

Anhydrous octyl-glucoside phase transition from lamellar to isotropic induced by electric and magnetic fields.

A static deuterium nuclear magnetic resonance (HNMR) technique (magnetic field, B = 7.05 T) was employed to monitor the thermotropic lamellar phase of the anhydrous 1:1 mixture sample of octyl-b-D-glucoside (βOG) and that of partially deuterium labelled at the alpha position on the chain, i.e.

Functionalization of an sp(3) C-H bond via a redox-neutral domino reaction: diastereoselective synthesis of hexahydropyrrolo[2,1-b]oxazoles.

A diastereoselective synthesis of pyrrolidinooxazolidines was achieved by a metal-free, base-promoted reaction of pyrrolidine and aromatic aldehydes under microwave irradiation. The rare functionalization of an sp(3) C-H bond probably results from an in situ generated azomethine ylide that undergoes cycloaddition with aldehydes.

Surface electromyographic analysis of the biceps brachii muscle of cricket bowlers during bowling.

Cricket bowling generates forces with torques on the upper limb muscles and makes the biceps brachii (BB) muscle vulnerable to overuse injury. The aim of this study was to investigate whether there are differences in the amplitude of the EMG signal of the BB muscle during fast and spin delivery, during the seven phases of both types of bowling and the kinesiological interpretation of the bowling arm for muscle contraction mechanisms during bowling. A group of 16 male amateur bowlers participated in this study, among them 8 fast bowlers (FB) and 8 spin bowlers (SB).

Effects of anthropometric variables and electrode placement on the SEMG activity of the biceps brachii muscle during submaximal isometric contraction in arm wrestling.

Surface electromyography (SEMG) has been widely used to analyze the biceps brachii (BB) muscle during voluntary contraction, and the effect of the interelectrode distance has been studied. However, the effect of anthropometric variations and the placement of electrodes on the BB activity during arm wrestling (i.e.

Student seminar on smoking: A novel way to introduce different perspectives on smoking to medical students.

Background: The respiratory module at Shifa College of Medicine (SCM) is delivered in third year with emphasis on respiratory pathophysiology and respiratory medicine. Smoking as a topic was introduced to emphasize the preventive aspects of respiratory illnesses. An innovative approach to involve students in their learning was developed.

Distribution pattern of acetylcholinesterase in the optic tectum of two Indian air breathing teleosts.

Background: A histoenzymological study has been carried out on the distribution of enzyme acetylcholinesterase in the optic tectum of two Indian air breathing teleosts by employing a histochemical technique to visualize acetylcholinesterase containing neurons described by Hedreen, JC (1985).

Purpose: Data available on enzyme localizaton in the brain of fishes, particularly Indian teleosts is inadequate and scattered.

Methods: AChE distribution in the optic tectum shows a prevalent pattern characterized by precise laminar distribution of enzyme which shows alternatively strong, weak or negative reaction in the different layers.

Propranolol for hemangiomas.

Objective: Hemangiomas are the most common benign soft tissue tumors occurring in 5-10 % of children at around the age of 1 year and of them 10 % are associated with significant morbidity and entail medical attention. In this study, efficacy and adverse effects of the drug propranolol were observed on hemangiomas.

Methods: Oral propranolol was given to 36 children at a dose of 3 mg/kg/day in three divided doses.

Perforation of jejunal duplication lined with ectopic gastric mucosa.

Alimentary tract duplications are rare congenital anomalies that occasionally contain ectopic gastric mucosa that secretes acid peptic juice and can cause pain, ulceration, bleeding and rarely perforation. We report a case of a 2-year-old girl who developed perforation of a jejunal duplication lined with ectopic gastric mucosa who was managed surgically.

Protective effect of dietary fibers against colorectal carcinoma.

Dietary fibers are remnant of plant cells resistant to hydrolysis by human alimentary tract enzymes. These are cellulose, hemicellulose, lignin, pectins and gums. Intake of dietary fibers or foods rich in dietary fibers decreases the incidence of colorectal carcinoma.

Urinary incontinence due to duplication of ureter--a case report.

A seventeen years old female student from Nakla, Sherpur was admitted in the surgical unit I of Mymensingh Medical College Hospital (MMCH) on 28th October 2000 with the one and only complain of continuous dribbling of urine since her birth. Besides her urinary incontinence she used to have urge for micturition and normal voiding pattern as well. She has a good physique but a very depressed mental state.