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1.
Mymensingh Med J ; 31(1): 15-23, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34999674

RESUMO

There is progressive increase of Hb levels is observed during course of intrauterine development of fetus but high concentrations found at birth. In preterm neonate normal Hb is characteristically deviated from term neonate. Breast milk is the only natural ideal food for both term and preterm babies from birth up to 6 months. Preterm milk was found to contain significantly higher concentrations nutrients particularly iron than term milk. Preterm human milk is more suitable for the premature infant than term human milk. As Hb concentration varies in term and preterm babies in different counties in different feeding practices. The purpose of this longitudinal descriptive study is to find out the pattern of changes in the Hb level among exclusively breastfed preterm and term infants during the first six months of life. This study was carried in the Neonatal Intensive Care Unit (NICU), Mymensingh Medical College Hospital (MMCH), Mymensingh from September 2016 to February 2018. One hundred fifty (150) neonates both term and preterm were included in this study and followed up to 6 months of age. After admission informed written consent was taken from parents, thorough history taking and clinical examination were done. Data were collected in a pre-designed case record form. All the babies of Group A provided 2mg/kg iron supplementation from 6 weeks for 2 months for universal recommendation. Hb level was measured of all exclusively breast feed babies at admission after birth then next follow-up at 6 weeks, 3 months and 6 months. All information regarding history, anthropometrics measurement, Hb level was recorded in structural questionnaire. Data analysis was done by SPSS version 20.0. Male were predominant in both groups. Most of the preterm (72.0%) and term babies (65.3%) were delivered by vaginal route. Mean Hb level was found significantly higher among preterm babies than term babies after birth were 16.55g/dl and 15.98g/dl respectively. Sharp fall of Hb concentration was observed after birth up to 6 weeks in both preterm and term babies but Hb level was found significantly lower in preterm in comparison to term babies (9.27gm/dl vs. 9.58gm/dl). In term babies, even after 6 weeks fall of Hb level continued to 3 months of age followed by gradual increase up to 6 months without iron supplementation. Hb level of in preterm babies gradually increased from 6 weeks up to 6 months with universal iron supplementation. Hb level fall sharply up to 6 weeks in both exclusively breastfed term and preterm babies but even after 6 weeks term babies experienced gradual fall of Hb levels up to 3 months. Hb level increases in exclusively breast-fed term babies without iron supplementation from 3 months of age. Hb level in exclusively breastfed preterm babies increase from 6 weeks onward might be effect of universal iron supplementation.


Assuntos
Aleitamento Materno , Recém-Nascido Prematuro , Comportamento Alimentar , Feminino , Hemoglobinas/análise , Humanos , Lactente , Recém-Nascido , Unidades de Terapia Intensiva Neonatal , Masculino
2.
Mymensingh Med J ; 31(1): 41-48, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34999678

RESUMO

Antimicrobial resistance mediated by extended-spectrum beta-lactamases (ESBL), AmpC beta-lactamase and metallo-beta-lactamase (MBL) producing Acinetobacter species is an emerging problem worldwide. In this cross-sectional study total 341 specimens were collected over a period of one year from January 2017 to January 2018. Specimens were collected from ICU and Surgery unit of Mymensingh Medical College Hospital, Mymensingh, Bangladesh. Specimens were collected from ICU and Surgery Unit of Mymensingh Medical College Hospital, Mymensingh, Bangladesh. Samples were processed for culture by standard conventional methods and susceptibility testing and determined by Kirby Bauer disc diffusion method. Antibiotic discs and their strength were according to the CLSI 2017 guideline. Molecular study was done to detect the species by OXA-51 gene and drug resistance genes (IMP, VIM, NDM, TEM, SHV, CTX, SPM, SIM and GIM). Species identification was done by OXA-51 gene which is intrinsic to Acinetobacter baumannii. Among the 46 isolates, 36(78.26%) were positive for Oxa-51 gene, 16(34.8%) for TEM gene, 9(19.6%) for VIM gene, 3(6.5%) for NDM gene and 1(2.2%) for IMP gene. This study gives an alarming sign towards high prevalence of cephalosporin and carbapenem resistance due to production of extended spectrum beta-lactamases and metallo-betalactamases, respectively. Early detection, proper antibiotic policies, and compliance towards infection control practices are the best defenses against these organisms.


Assuntos
Acinetobacter baumannii , Acinetobacter baumannii/genética , Antibacterianos/farmacologia , Bangladesh/epidemiologia , Estudos Transversais , Testes de Sensibilidade a Antimicrobianos por Disco-Difusão , Humanos , Testes de Sensibilidade Microbiana , Centros de Atenção Terciária , beta-Lactamases/genética
3.
Crit Rev Clin Lab Sci ; : 1-22, 2021 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-34851806

RESUMO

Clinical diagnostic tests should be quick, reliable, simple to perform, and affordable for diagnosis and treatment of diseases. In this regard, owing to their novel properties, biosensors have attracted the attention of scientists as well as end-users. They are efficient, stable, and relatively cheap. Biosensors have broad applications in medical diagnosis, including point-of-care (POC) monitoring, forensics, and biomedical research. The electrochemical nucleic acid (NA) biosensor, the latest invention in this field, combines the sensitivity of electroanalytical methods with the inherent bioselectivity of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The NA biosensor exploits the affinity of single-stranded DNA/RNA for its complementary strand and is used to detect complementary sequences of NA based on hybridization. After the NA component in the sensor detects the analyte, a catalytic reaction or binding event that generates an electrical signal in the transducer ensues. Since 2000, much progress has been made in this field, but there are still numerous challenges. This critical review describes the advances, challenges, and prospects of NA-based electrochemical biosensors for clinical diagnosis. It includes the basic principles, classification, sensing enhancement strategies, and applications of biosensors as well as their advantages, limitations, and future prospects, and thus it should be useful to academics as well as industry in the improvement and application of EC NA biosensors.

4.
Mymensingh Med J ; 30(4): 1043-1050, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34605475

RESUMO

Medical education is associated with a great psychological distress that affects many aspects of students' lives, including their academic performance and professional development. The objective of the study was to determine the level of depression, anxiety and stress and their academic performance among fifth year medical students. This was a cross-sectional descriptive study conducted in Dhaka Medical College, Mymensingh Medical College, Anwar Khan Modern Medical College and Community Based Medical College of Bangladesh. For this purpose, 359 students were taken as sample and self-administered semi-structured questionnaire was used to collect data. Depression, anxiety and stress were assessed by using short form DASS-21 BV score. The results showed that, the mean age of students was 22.74 years with female predominance 230(64.0%). Majority 319(88.9%) of the respondents' parents monthly income was ≤100000 taka and one third 126(35.1%) respondents' monthly study expenditure was in between 5001 to 10000 taka. Four fifth 317(88.0%) of the respondents came from nuclear type of family and two third 245(68.2%) lived in hostel. Half 178(50.0%) of the respondents were eldest in birth order. Majority 221(61.6%) of the students were admitted to medical college by their own motivation and interest. Symptoms of depression, anxiety and stress were present in 179(49.9%), 215(59.9%) and 161(44.8%) respectively. No significant association was found between academic performance with depression or anxiety or stress, except class attendance of Gynaecology and Obstetrics which was significantly associated with stress (p=0.016); the students who suffered from more stress, their class attendance were very poor. Students who reappeared in MBBS professional examination were significantly associated with depression (p=0.032) and stress (p=0.036). There was significant difference between students of public and private medical colleges in terms of anxiety (p=0.031) that is students of public medical colleges more suffered from depression, anxiety and stress in comparison to private medical colleges. Depression (p=0.001) and anxiety (p=0.010) were significantly associated with motivation to study MBBS. No significant difference of depression, anxiety or stress was found with sex difference. This study revealed that fifth year MBBS students suffered more from depression, anxiety and stress. The causes of depression, anxiety and stress should be identified and resolved to improve their mental health and academic performance.


Assuntos
Desempenho Acadêmico , Estudantes de Medicina , Adulto , Ansiedade/epidemiologia , Bangladesh/epidemiologia , Estudos Transversais , Depressão/epidemiologia , Feminino , Humanos , Masculino , Gravidez , Adulto Jovem
5.
Saudi J Biol Sci ; 28(10): 5808-5815, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34588895

RESUMO

During last several years, Kuwait Institute for Scientific Research (KISR), Kuwait has been trying to develop a sustainable culture technique for silver pomfret (Pampus argenteus). This paper reports the recent research advances in the breeding and rearing of silver pomfret fry at KISR. The eggs collected from wild silver pomfret during spawning seasons of 2012 to 2015 were artificially fertilized under laboratory condition. The average hatching rates of artificially fertilized eggs collected from wild silver pomfrets were 25.6%, 44.8%, 76.7%, and 53.5.0% and average survival rates of metamorphosed fry produced from these eggs were 3.7%, 5.7%, 4.4% and 3.8% for the spawning seasons 2012, 2013, 2014, and 2015, respectively. For captive brood stocks, observation on the spawning time at hourly interval by collecting eggs from the nets set at out-flow of brood tanks showed that the spawning time for captive silver pomfret starts at the time of sunset. In 2012, two groups of captive silver pomfret broods spawned a total of 62x103 and 66x103 eggs, but the eggs were unfertilized. No captive spawning occurred during 2013 and 2014 spawning season. In 2015, captive silver pomfret broods in three tanks spawned about 653x103, 673x103 and 270x103 eggs, and in 2016, the broods in four tanks spawned about 669x103, 22x103, 3x103 and 366x103 eggs. However, from these eggs only 1,400 and 1,000 fertilized eggs were collected which produced 300 and 123 hatched larvae in July 2015 and June 2016, respectively. The larvae produced from the 2015 broods did not survive beyond 56 days of metamorphosed stage while larvae produced from 2016 captive broods survived for 9 days only. The mortality of the larvae from captive brood could be related to the poor egg or milt quality. However, efforts are continued to improve the eggs and sperm quality through proper brood management.

6.
Mymensingh Med J ; 30(3): 718-724, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34226461

RESUMO

Urinary tract infection (UTI) is a common complication in nephrotic children and leads to most morbidity and mortality in developing countries like Bangladesh. This case control study was conducted in the Department of Pediatrics and Pediatric Nephrology ward of Dhaka Medical College Hospital, Dhaka from July 2016 to June 2018 to identify the risk factors of UTI in children with nephrotic syndrome. Total 90 patient of nephrotic children aged 2-12 years, who were fulfilling the inclusion and exclusion criteria were selected as Group I (case) and Group II (control) according to urine culture report. Group I was UTI positive and Group II was UTI negative. The mean age of Group I was 5.26±3.18 years and Group II was 6.03±2.85 years. There was male predominance in both groups. No significant difference has been found regarding age and sex (p>0.05). No significant difference was also observed regarding economic status and educational level of mother among both groups (p>0.05). Fever, dysuria, abdominal pain, anasarca, vomiting and pallor were found as common presentations in Group I. Children with dysuria and abdominal pain were significantly higher in Group I than Group II (p value <0.001). UTI was found more in relapsed cases than initial attack. E. coli was the most common etiologic agent (37.8%). Mean Hb (gm/dl), serum total protein, serum albumin and serum IgG level were found significantly lower and spot urine protein creatinine ratio was significantly higher in Group I, which implies that those biochemical factors were associated with development of UTI in nephrotic children. Younger age group (<6 years), Constipation and uncircumcised male were found as risk factors and has association with UTI in nephrotic children.


Assuntos
Síndrome Nefrótica , Infecções Urinárias , Bangladesh/epidemiologia , Estudos de Casos e Controles , Criança , Pré-Escolar , Escherichia coli , Humanos , Lactente , Masculino , Síndrome Nefrótica/complicações , Síndrome Nefrótica/epidemiologia , Fatores de Risco , Infecções Urinárias/epidemiologia , Infecções Urinárias/etiologia
7.
Mymensingh Med J ; 30(3): 744-750, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34226464

RESUMO

Eosinophilic esophagitis (EoE) is a disease of modern era. It was first described 40 years back. Since then it has drawn an immense interest among the clinicians. It is diagnosed by the presence of eosinophils count ≥15/HPF on esophageal biopsied mucosa in patients with symptoms of esopohageal dysfunction. It is more prevalent among patients with gastroesophageal reflux disease. As its symptoms overlap with that of gastroesophageal reflux disease (GERD), it is frequently overlooked & misdiagnosed which increases patients' sufferings. No data is available in Bangladesh. The objective of the study was to find out the frequency of eosinophilic esophagitis among patients with gastroesophageal reflux symptoms. The study was conducted at the Outpatient department of the department of Gastroenterology of Dhaka Medical College Hospital, Dhaka, Bangladesh from September 2018 to April 2019. One hundred and thirty three (133) consecutive patients with symptoms suggestive of gastroesophageal reflux disease based on validated questionnaire underwent upper GI endoscopy. Biopsies were taken from proximal and distal esophagus as well as any other endoscopically abnormal esophageal mucosal lesion. Among 133 patients with gastroesophageal reflux symptoms, 7 patients (5.3%) were found to be positive for eosinophilic esophagitis. Mean age at diagnosis was 37.28±13.38 years. It was more common in younger age group. Female patients (56%) were more than male patients (44%). Heart burn was the major symptom followed by acid regurgitation. Nocturnal cough showed statistically significant relationship with eosinophilic esophagitis. Although the frequency is low, it may be considered as a differential diagnosis among patients with GERD.


Assuntos
Esofagite Eosinofílica , Refluxo Gastroesofágico , Bangladesh/epidemiologia , Estudos Transversais , Esofagite Eosinofílica/complicações , Esofagite Eosinofílica/diagnóstico , Esofagite Eosinofílica/epidemiologia , Feminino , Refluxo Gastroesofágico/complicações , Refluxo Gastroesofágico/diagnóstico , Refluxo Gastroesofágico/epidemiologia , Hospitais , Humanos , Masculino
8.
Artif Organs ; 45(12): 1501-1512, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34309044

RESUMO

The primary role of bone tissue engineering is to reconcile the damaged bones and facilitate the speedy recovery of the injured bones. However, some of the investigated metallic implants suffer from stress-shielding, palpability, biocompatibility, etc. Consequently, the biodegradable scaffolds fabricated from polymers have gathered much attention from researchers and thus helped the tissue engineering sector by providing many alternative materials whose functionality is similar to that of natural bones. Herein, we present the fabrication and testing of a novel composite, magnesium (Mg)-doped hydroxyapatite (HAp) glazed onto polylactic acid (PLA) scaffolds where polyvinyl alcohol (PVA) used as a binder. For the composite formation, Creality Ender-3 pro High Precision 3D Printer with Shape tool 3D Technology on an FSD machine operated by Catia design software was employed. The composite has been characterized for the crystallinity (XRD), surface functionality (FTIR), morphology (FESEM), biocompatibility (hemolytic and protein absorption), and mechanical properties (stress-strain and maximum compressive strength). The powder XRD analysis confirmed the semicrystalline nature and intact structure of HAp even after doping with Mg, while FTIR studies for the successful formation of Mg-HAp/PVA@PLA composite. The FESEM provided analysis indicated for the 3D porous architecture and well-defined morphology to efficiently transport the nutrients, and the biocompatibility studies are supporting that the composite for blood compatible with the surface being suitable enough for the protein absorption. Finally, the composite's antibacterial activity (against Staphylococcus aureus and Escherichia coli) and the test of mechanical properties supported for the enhanced inhibition of active growth of microorganisms and maximum compressive strength, respectively. Based on the research outcomes of biocompatibility, antibacterial activity, and mechanical resistance, the fabricated Mg-HAp/PVA@PLA composite suits well as a promising biomaterial platform for orthopedic applications by functioning towards the open reduction internal fixation of bone fractures and internal repairs.

9.
Artigo em Inglês | MEDLINE | ID: mdl-34077338

RESUMO

Food fraud is a global problem raising increased concerns during the past decades and food authenticity is now a burning issue. Beef, buffalo, chicken, duck, goat, sheep, and pork are heavily consumed meats bearing nutritional, economic and cultural/religious importance and are often found to be adulterated in raw and processed states. To authenticate these species, we developed and validated a highly specific multiplex (heptaplex) PCR assay targeting short length amplicons (73-263 bp) using seven pairs of species-specific primer sets targeting mitochondrial cytochrome b (cytb) and NADH dehydrogenase subunit 5 (ND5) genes. Specificity checking (in silico and in vitro) against 25 non-target species revealed no cross-species amplification. The developed multiplex assay was validated with various adulterated and heat-treated (boiled, microwaved and autoclaved) meatball products and were found to show high sensitivity and stability under all processing conditions. The assay was sensitive enough to detect 0.01-0.005 ng of DNA from raw meat and 0.5% (w/w) adulterated meat in mixed matrices. A market survey revealed mislabelling of 95% beef and 15% chicken products while pork products were found pure. Given some advantageous features including short sizes of amplicons, exceptional stability and superior sensitivity, the developed assay could be conveniently used for discriminatory detection of target species with a variety of raw meat as well as processed meat products undergoing extreme processing treatments.


Assuntos
Citocromos b/genética , Alimentos/classificação , Carne/classificação , Reação em Cadeia da Polimerase Multiplex/métodos , NADH Desidrogenase/genética , Animais , Sequência de Bases , Búfalos , Bovinos , Galinhas , DNA , Primers do DNA , Patos , Cabras , Humanos , Limite de Detecção , Carne/análise , Ovinos , Suínos
10.
Mymensingh Med J ; 30(2): 337-342, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33830111

RESUMO

This cross-sectional analytical study was conducted in the department of Paediatrics, Mymensingh Medical College Hospital (MMCH), Mymensingh, Bangladesh from March 2017 to August 2018 to assess the pattern of serum iron profile and red cell indices in children with severe acute malnutrition. Seventy children having severe acute malnutrition were compared with 70 age matched children those had normal growth. Age range of the studied children was 6 months to 59 completed months. Male was found predominant (54.3%) in both study group and comparison group. Mean serum iron, serum ferritin, serum total iron binding capacity and transferrin saturation in severely malnourished children were 45.3±19.3µg/dl, 26.5±20.0ng/ml, 246.3±47.5µg/dl and 16.4±2.0% respectively which were significantly lower than that of healthy children (p<0.05). Mean Hb level in children with severe acute malnutrition was found 8.3±1.6gm/dl which was also found significantly lower than that of normal children (p<0.05). Anaemia was found in all (100%) severely malnourished children compared to 25.7% of children in comparison group. Mean MCV, MCH and MCHC in children with severe acute malnutrition was found 71.7±13.5fl, 24.0±5.8pg and 31.4±4.0gm/dl respectively which were significantly lower than that of comparison group (p<0.05). Serum iron profile and red cell indices should be routinely done in severely malnourished children for early intervention and management of iron deficiency anaemia.


Assuntos
Anemia Ferropriva , Desnutrição Aguda Grave , Anemia Ferropriva/epidemiologia , Bangladesh/epidemiologia , Criança , Estudos Transversais , Índices de Eritrócitos , Hemoglobinas/análise , Humanos , Lactente , Ferro , Masculino , Desnutrição Aguda Grave/complicações , Desnutrição Aguda Grave/epidemiologia
11.
Mymensingh Med J ; 30(2): 387-394, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33830118

RESUMO

Undernutrition in children under five years remains a significant health problem in Bangladesh, despite substantial socio-economic progress and a decade of interventions aimed at improving it. Although Bangladesh has made rapid progress over the last decade in the field of health and nutrition, there has been very slow progress in improving the state of child nutrition. Studies aiming at determination of interrelationship between child undernutrition and maternal undernutrition are to be scientifically established if appropriate intervention policy is to be introduced. This study was undertaken to see whether this assumption has a statistically proven basis that maternal undernutrition influences child undernutrition. The objective of this cross sectional analytical study was to evaluate the association between child undernutrition and their maternal undernutrition in child-mother pair in a tertiary care hospital and was conducted from July 2017 to April 2018 in the department of General Paediatrics, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh. The study subjects were 196 children between the ages of six months to five years who were admitted in BSMMU and their accompanying mothers. Children who had any known chronic diseases or clinically obvious syndrome were excluded. Before enrollment, parents of all the patients were informed about the study & its objectives. Anthropometric measurements of children and mothers were done by standard procedure. Demographic profile and relevant maternal information were collected by interviewing the mothers. Among the undernourished children, 17.3% were found underweight, 7.1% stunted, 16.3% wasted. Combined underweight & wasted were 34.7%, underweight & stunted 9.2%, stunted & wasted 5.1%, underweight, stunted and wasted 10.2%. Maternal undernutrition was more common (95.7%) in undernourished children group. Undernutrition was significantly higher in mothers of children with undernutrition (OR=40.75, p<0.001). Children having a better nutrition were born from mothers who were well nourished, educated, had good childcare knowledge and higher family income. This emphasized the need to provide the guideline for appropriate measure to be taken to reduce child undernutrition.


Assuntos
Transtornos da Nutrição Infantil , Desnutrição , Bangladesh/epidemiologia , Criança , Transtornos da Nutrição Infantil/epidemiologia , Pré-Escolar , Estudos Transversais , Feminino , Humanos , Lactente , Recém-Nascido , Desnutrição/epidemiologia , Mães , Estado Nutricional , Prevalência , Centros de Atenção Terciária
13.
Mymensingh Med J ; 30(1): 90-100, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33397857

RESUMO

An observational longitudinal study was conducted in the Department of Neonatology and Child Developmental Center, Mymensingh Medical College Hospital (MMCH), Bangladesh during the period of September 2016 to February 2018 to find out the neuro-developmental outcome of high risk neonates at the age of 6 months. Five hundred seventy six (576) high risk neonate who were admitted in the neonatology department in Mymensingh Medical College Hospital were selected as study population by Purposive sampling technique. After admission written informed consent from parents or guardians obtained and Data was collected in a pre-designed case record form. At 6th months of age total 400 baby were came to Child Development Centre and their motor, cognition and behavior development were assessed by Bayley Scale of Infant Development and severity of cognitive, motor and behavior impairment were graded. All data were compiled, tabulated and then analyzed by computer software SPSS version 20.00. Mean age was 7.2±3.3 days. Among studied newborns 18.1% were preterm and 81.9% were term. Most of the newborn were male (63.0%). Developmental delay was found in 81.5% and neuro-developmental outcome was found normal in only 18.5% newborns. Significant delayed motor performance was found in 52% newborns where 17% had mild delay. Significantly delayed mental performance was found in 57.0% and 28.52% had mildly delayed mental performance. Non-optimal behavior was found in 57.0% newborns and14% had questionable behavior. Very low birth weight, preterm very low birth weight, home delivery, perinatal asphyxia and neonatal seizure were found to have significant relation with developmental delay. Most of the high risk neonates develop developmental delay.


Assuntos
Asfixia Neonatal , Recém-Nascido de muito Baixo Peso , Bangladesh/epidemiologia , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Estudos Longitudinais , Masculino , Gravidez , Centros de Atenção Terciária
14.
Mol Cell Probes ; 55: 101683, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33259896

RESUMO

Invasive alien fish species have become a silent treat towards the ecosystem especially the native fish population in Malaysia. There has been a need to develop rapid identification methods that can aid management teams in identifying fish species that are not native to our ecosystem. Current visual identification methods are highly tedious and require time, delaying action towards curbing the invasion. The LAMP assay successfully identified six popular invasive fish species in Malaysia. None of the LAMP assays showed false positives and the Limit of Detection of the LAMP primers were highly sensitive and could detect DNA samples up to 1 × 10-15 ng/µl. The LAMP primers designed were highly specific to the target species and did not amplify non target species. DNA sequencing was done to ensure the accuracy of LAMP assay results. This study demonstrates that LAMP is a suitable tool in species identification efforts of invasive fish species in Malaysia.


Assuntos
Peixes/genética , Água Doce , Espécies Introduzidas , Técnicas de Diagnóstico Molecular/métodos , Técnicas de Amplificação de Ácido Nucleico/métodos , Animais , Malásia , Transiluminação , Raios Ultravioleta
15.
Plant Biol (Stuttg) ; 23 Suppl 1: 162-169, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33236382

RESUMO

Copper (Cu) pollution of agricultural land is a major threat to crop production. Exogenous chemical treatment is an easily accessible and rapid approach to remediate metal toxicity, including Cu toxicity in plants. We compared the effects of ascobin (ASC; ascorbic acid:citric acid at 2:1) and glutathione (GSH) in mitigation of Cu toxicity in rice. Plants subjected to Cu stress displayed growth inhibition and biomass reduction, which were connected to reduced levels of chlorophylls, RWC, total phenolic compounds, carotenoids and Mg2+ . Increased accumulation of ROS and malondialdehyde indicated oxidative stress in Cu-stressed plants. However, application of ASC or GSH minimized the inhibitory effects of Cu stress on rice plants by restricting Cu2+ uptake and improving mineral balance, chlorophyll content and RWC. Both ASC and GSH pretreatments reduced levels of ROS and malondialdehyde and improved activities of antioxidant enzymes, suggesting their roles in alleviating oxidative damage. A comparison on the effects of ASC and GSH under Cu stress revealed that ASC was more effective in restricting Cu2+ accumulation (69.5% by ASC and 57.1% by GSH), Ca2+ and Mg2+ homeostasis, protection of photosynthetic pigments and activation of antioxidant defence mechanisms [catalase (110.4%), ascorbate peroxidase (76.5%) and guaiacol peroxidase (39.0%) by ASC, and catalase (58.9%) and ascorbate peroxidase (59.9%) by GSH] in rice than GSH, eventually resulting in better protection of ASC-pretreated plants against Cu stress. In conclusion, although ASC and GSH differed in induction of stress protective mechanisms, both were effective in improving rice performance in response to Cu phytotoxicity.


Assuntos
Glutationa , Oryza , Antioxidantes , Cobre/toxicidade , Glutationa/metabolismo , Homeostase , Peróxido de Hidrogênio , Oryza/metabolismo , Estresse Oxidativo , Plântula/metabolismo
16.
New Microbes New Infect ; 38: 100765, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33133612

RESUMO

Leptospira was detected in 48.9% of blood samples from 182 febrile patients in north-central Bangladesh in 2019. Most Leptospira were classified as L. wolffii (93%) on the basis of phylogenetic analysis of 16S ribosomal RNA genes, while others were assigned to L. borgpetersenii and L. meyeri.

17.
Crit Rev Food Sci Nutr ; : 1-19, 2020 Nov 04.
Artigo em Inglês | MEDLINE | ID: mdl-33146031

RESUMO

Vibrio parahaemolyticus, Vibrio cholerae and Vibrio vulnificus are the most significant aquatic pathogens of the genera Vibrio, account for most Vibrio-associated outbreaks worldwide. Rapid identification of these pathogens is of great importance for disease surveillance, outbreak investigations and food safety maintenance. Traditional culture dependent methods are time-consuming and labor-intensive whereas culture-independent polymerase chain reaction (PCR) based assays are reliable, consistent, rapid and reproducible. This review covers the recent development and applications of PCR based techniques, which have accelerated advances in the analysis of nucleic acids to identify three major pathogenic vibrios. Emphasis has been given to analytical approaches as well as advantages and limits of the available methods. Overall, this review article possesses the substantial merit to be used as a reference guide for the researchers to develop improved PCR based techniques for the differential detection and quantification of Vibrio species.

18.
Mymensingh Med J ; 29(4): 784-792, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33116078

RESUMO

This cross-sectional descriptive study was conducted at the neonatal intensive care unit (NICU) in the department of Neonatology, Mymensingh Medical College Hospital (MMCH), Mymensingh, Bangladesh from July 2017 to December 2017 to determine antimicrobial sensitivity pattern in neonatal sepsis. Ninety four neonates (0-28 days) who were admitted in NICU with suspected sepsis were included in this study by purposive sampling technique. After admission written informed consent from parents or guardians obtained and then septic screening along with blood culture and antimicrobial sensitivity was done. All data were compiled, tabulated and then analyzed by SPSS version 21.0. Among 94 cases, 68(72.3%) were preterm and 26(23.4%) were term. There was male predominance and male female ratio was 1.9:1. Most of the patient admitted within 72 hours of birth. Most (84%) had low birth weight (<2500gm). Pre-mature onset of labour, pre-mature rupture of membrane >18 hours, vaginal route of delivery, instrumental resuscitation, pre-lacteal feeding, bottle feeding were the major perinatal risk factors in this study. Early onset sepsis (76.6%) was most prevalent in this study. Blood culture yielded positive growth in 20(21.3%) cases. Among them, Klebsiella was found in 7(35%). E. coli in 6(30%), Acinetobacter was in 3(15%), Staphylococcus aureus in 2(10%) cases. Pseudomonas and Enterobacter were found in rest 2(10%) of the cases. Gram negative bacteria were found in 18(90%) cases. Klebsiella was sensitive to Imipenem (85.7%), Colistin (85.7%) and Ciprofloxacin (77.5%). Sensitivity of E. coli was Imipenem (100%), Colistin (100%), Amikacin (66.7%), Ciprofloxacin (66.7%), Netilmicin (66.7%) and Gentamicin (50%). Acinatobecter had sensitivity to Netilmicin, Colistin, Imipenem (100%). Staphylococcus was 100% sensitive to Imipenem, Netilmicin and Vancomycin. Pseudomonas was found sensitive to Imipenem (100%), Amikacin (100%), Netilmicin (100%) and Colistin (100%). Enterobacter was found highly sensitive to Ciprofloxacin, Colistin and Imipenem. Almost all organisms were resistant to Ampicillin, Gentamicin, Cefotaxime and Ceftazidime. Based on result it is concluded that Klebsiella pneumoniae and Escherichia coli are the leading cause of neonatal sepsis in this study and most of them resistant to multiple antibiotics. Organisms found more sensitive to Imipenem, Colistin, Ciprofloxacin and Netilmicin.


Assuntos
Anti-Infecciosos , Sepse Neonatal , Sepse , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Bangladesh/epidemiologia , Estudos Transversais , Escherichia coli , Feminino , Humanos , Recém-Nascido , Unidades de Terapia Intensiva Neonatal , Masculino , Testes de Sensibilidade Microbiana , Sepse Neonatal/diagnóstico , Sepse Neonatal/tratamento farmacológico , Sepse Neonatal/epidemiologia , Gravidez , Sepse/diagnóstico , Sepse/tratamento farmacológico , Sepse/epidemiologia
19.
Crit Rev Food Sci Nutr ; : 1-26, 2020 Sep 11.
Artigo em Inglês | MEDLINE | ID: mdl-32914638

RESUMO

Meat and meat products are widely consumed worldwide as a source of high-quality proteins, essential amino acids, vitamins, and necessary minerals. The acceptability of Halal and Kosher meat products relies not only on the species origin but also on the manner of slaughtering of animals. Both Islam and Judaism have their own dietary laws in their holy books regarding acceptance and forbiddance of dietary items particularly meat and meat products. They also include many strictures to follow for ritual cleanliness of foods. Since the authenticity of Halal and Kosher food created increased concerns among consumers, the integrity of Halal and Kosher meat and meat products must be assured so that consumers can be accomplished with the originality of products. There is an increasing demand for reliable and sensitive techniques for the authentication of various Halal and Kosher meat products. This up-to-date review intends to provide an updated and extensive overview critically on the present situation, progress, and challenges of analytical techniques to authenticate animal species in meat items. It also addresses slaughtering procedure with brief discussion on Halal and Kosher laws with a view to creating consumer awareness against fraudulent practices. The available methods are schematically presented, and their salient features are comparatively elucidated in tables. Potential future technologies are predicted, and probable challenges are summarized. Overall, the present review article possesses substantial merits to be served as a reference guide in the field of academia and industry for the preparation/processing and identification of Halal and Kosher meat and meat products as well as may act as a platform to help improve existing authentication methods.

20.
Mymensingh Med J ; 29(3): 502-508, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32844786

RESUMO

Acetabular fracture usually occurs as a result of high velocity injury and often affects the young and economically productive population. Previously, treatment of acetabular fracture was grossly inadequate and many patients were left with incapacitating pain, limitation of movement. Proper management should be given in our set-up to save lives and to minimize long term complications and related disabilities. This study was done to evaluate the outcome of open reduction and internal fixation of posterior wall fracture of acetabulum. This prospective observational study was carried out in Dhaka Medical College Hospital, Dhaka, Bangladesh from July 2016 to June 2018. Total twenty five cases were selected. Radiological and functional outcome were evaluated six months after surgery according to Matta radiographic criteria and Merle d Aubigne and Postel criteria respectively. Effect of age, gender, hip dislocation, displacement of fracture fragment, associated injury, reduction quality, trauma to surgery time, complication of operation on the functional outcome was evaluated. Age range was 18-60 years. The mean age was 38±11 years. Male 23 and female 2, male and female ratio was 11.5:1. Mean follow up 8.5±1.7 months, range 6-12 months. According to Matta radiographic criteria, 6 months after surgery, 10 patients had excellent, 10 patients had good, 3 patients had fair and 2 patients had poor radiological outcome. According to Merle d Aubigne and Postel criteria, 6 months after surgery, 11 patients had excellent, 10 patients had good, 3 patients had fair and 1 patient had poor functional outcome. Overall functional outcome of the study population revealed that 21 patients (84%) belonged to satisfactory (Excellent + Good) and 4 patients (16%) belonged to unsatisfactory (Fair + Poor) outcome. AVN (avascular necrosis) of femoral head had been occurred in two patients, post-operative wound infection had been occurred in two patients and myositis ossificans around hip joint had been occurred in two patients. Twenty (20) patients were achieved anatomic (0, 1mm) reduction, 3 patients were achieved imperfect (2, 3mm) reduction and 2 patients were achieved poor (>3mm) reduction. This study concludes that open reduction and internal fixation of posterior wall fracture of acetabulum is a satisfactory method of treatment.


Assuntos
Acetábulo , Fraturas Ósseas , Adolescente , Adulto , Bangladesh , Feminino , Fixação Interna de Fraturas , Humanos , Masculino , Pessoa de Meia-Idade , Redução Aberta , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
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