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1.
Braz. j. biol ; 82: e236499, 2022. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1153462

RESUMO

Abstract Distribution pattern and relative abundance of the agricultural rodent pests of rain-fed and irrigated areas of district Swat Khyber Pakhtunkhwa, Pakistan were recorded from April 2011 to November 2013 using wire mesh live traps. A total of 350 rodents (269 Rattus rattus and 81 Mus musculus) were captured under 2268 trap nights (trap success: 0.15). Regression of daily captures on cumulative captures revealed an estimate of 350 rodents from all the sampled structures with an average of 21.8 rodents per crop field. House rats (R. rattus; 76.8% of captures) were numerically dominant in almost all types of agricultural fields, and were significantly different from the mice (Mus musculus; 23.1% of captures). Both species were found together in some fields. The sex ratio revealed that males outnumbered the females in both of the reported species.


Resumo O padrão de distribuição e a abundância relativa de pragas de roedores agrícolas nas áreas irrigadas e irrigadas do distrito Swat Khyber Pakhtunkhwa, Paquistão foram registrados de abril de 2011 a novembro de 2013 usando armadilhas vivas de malha de arame. Um total de 350 roedores (269 Rattus rattus e 81 Mus musculus) foram capturados em 2268 noites de armadilha (sucesso da armadilha: 0,15). A regressão das capturas diárias em capturas cumulativas revelou uma estimativa de 350 roedores de todas as estruturas amostradas, com uma média de 21,8 roedores por campo agrícola. Os ratos domésticos (R. rattus; 76,8% das capturas) foram numericamente dominantes em quase todos os tipos de campos agrícolas e foram significativamente diferentes dos camundongos (Mus musculus; 23,1% das capturas). Ambas as espécies foram encontradas juntas em alguns campos. A proporção de sexo revelou que os machos superaram as fêmeas em ambas as espécies relatadas.

3.
J Food Biochem ; : e13714, 2021 Apr 04.
Artigo em Inglês | MEDLINE | ID: mdl-33817805

RESUMO

Trichosanthes dioica seed lectin (TDSL), having a molecular mass of 57 ± 2 kDa was purified in an alternative way. For the purification process, the galactose-sepharose-4B affinity column was used. The purified TDSL agglutinated human and mouse erythrocytes at the minimum concentration of 8  µg/ml. d-lactose and d-galactose were the most potent inhibitory sugars as observed. The purified lectin was a glycoprotein having 3.0% of a neutral sugar. The lectin exhibited maximum activity up to 60°C and pH range from 7.0 to 10.0 and stable up to 4.0 M urea as tested. The lectin demonstrated mild toxicity when administered against brine shrimp nauplii, and the LC50 value was calculated to be 84.0 µg/ml. Minimum agglutination of Ehrlich ascites carcinoma (EAC) cells caused by the lectin was found at the protein concentration of 1.56 µg/ml. TDSL inhibited 7, 50.2%, and 60.3% of the EAC cells growth in vivo in mice when administered with 0.75, 1.5, and 3.0 mg kg-1  day-1 (i.p.), respectively, for five consecutive days. After lectin treatment, red blood cell (RBC) and hemoglobin levels were increased significantly toward the normal compared with EAC cells-bearing control and normal mice. The tumor burden reduced to 29.5% and 67% after treatment with 1.5 and 3.0 mg kg-1  day-1 of the lectin. TDSL triggered the cell cycle arrest at the G0 /G1 phase, which was observed using flow cytometry. In conclusion, TDSL can be a candidate for the potent anticancer agents that exerts low toxicity toward brine shrimp nauplii. PRACTICAL APPLICATIONS: A 57 ± 2 kDa lectin (designated TDSL) was purified from Trichosanthes dioica seeds using a galactose-sepharose-4B affinity column. The lectin demonstrated mild toxicity and agglutinated Ehrlich ascites carcinoma (EAC) cells. The lectin inhibited 50.2% and 60.3% of the EAC cell growth in vivo in mice when administered with 1.5 and 3.0 mg kg-1  day-1 (i.p.), respectively, for five consecutive days. The lectin increased RBC and hemoglobin level toward the normal compared with lectin-treated EAC cells-bearing, EAC cells-bearing control and normal mice. The tumor burden reduced to 29.5% and 67% after treatment with 1.5 and 3.0 mg kg-1  day-1 lectin. TDSL triggered the cell cycle arrest at the G0 /G1 phase. The lectin can be a candidate for potent anticancer agents.

4.
Mymensingh Med J ; 30(2): 562-569, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33830144

RESUMO

The coronavirus disease 2019 (COVID-19), first reported in Wuhan, China is now a major global health threat - a pandemic. Public health control measures are the cornerstones in the fight against COVID-19 in the absence of an effective vaccine or proven treatment. The aim of this review was to explore the historical use case of various public health measures adopted today to tackle COVID-19 spread. Although our knowledge about this novel coronavirus transmission is evolving over time, the fundamental non-pharmaceutical interventions e.g., handwashing, wearing a mask, physical distancing, isolation, quarantine and border control which are adopted globally at present are not new. This review highlighted that historically and religiously similar approaches were practised in the medieval past for controlling disease outbreaks. The successful implementation of the public health control measures largely depends on health systems resilience, community engagement and changes in population behaviour. Combined global efforts are essential to strengthen health systems, improve the capability of research and transparent information sharing with both public and international bodies to combat the pandemic.


Assuntos
Pandemias , China/epidemiologia , Humanos , Pandemias/prevenção & controle , Quarentena
5.
Braz J Biol ; 82: e236499, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33729383

RESUMO

Distribution pattern and relative abundance of the agricultural rodent pests of rain-fed and irrigated areas of district Swat Khyber Pakhtunkhwa, Pakistan were recorded from April 2011 to November 2013 using wire mesh live traps. A total of 350 rodents (269 Rattus rattus and 81 Mus musculus) were captured under 2268 trap nights (trap success: 0.15). Regression of daily captures on cumulative captures revealed an estimate of 350 rodents from all the sampled structures with an average of 21.8 rodents per crop field. House rats (R. rattus; 76.8% of captures) were numerically dominant in almost all types of agricultural fields, and were significantly different from the mice (Mus musculus; 23.1% of captures). Both species were found together in some fields. The sex ratio revealed that males outnumbered the females in both of the reported species.


Assuntos
Chuva , Roedores , Agricultura , Animais , Feminino , Masculino , Camundongos , Paquistão , Ratos , Simbiose
6.
Sci Total Environ ; 779: 146133, 2021 Mar 04.
Artigo em Inglês | MEDLINE | ID: mdl-33740558

RESUMO

Originating in December 2019 in China, SARS-CoV-2 has emerged as the deadliest pandemic in humankind's history. Along with direct contact and droplet contaminations, the possibility of infections through contaminated surfaces and fomites is investigating. This study aims to assess SARS-CoV-2 viral RNA's prevalence by real-time one-step reverse transcriptase PCR on banknotes circulating in Bangladesh. We also evaluated the persistence of the virus on banknotes spiked with SARS-CoV-2 positive diluted human nasopharyngeal samples. Among the 425 banknote samples collected from different entities, 7.29% (n = 31) were tested positive for targeted genes. Twenty-four positive representative samples were assessed for n gene fragments by conventional PCR and sequenced. All the samples that carry viral RNA belonged to the GR clade, the predominantly circulating clade in Bangladesh. In the stability test, the n gene was detected for up to 72 h on banknotes spiked with nasopharyngeal samples, and CT values increase significantly with time (p < 0.05). orf1b gene was observed to be less stable, especially on old banknotes, and usually went beyond detectable limit within 8 to 10 h. The stability of virus RNA well fitted by the Weibull model and concave curve for new banknotes and convex curve for old banknotes revealed. Handling banknotes is unavoidable; hence, these findings imply that proper hygiene practice is needed to limit SARS-CoV-2 transmission through banknotes.

7.
Nutr Cancer ; : 1-9, 2021 Jan 07.
Artigo em Inglês | MEDLINE | ID: mdl-33410363

RESUMO

Reports from various population-based studies indicate that the incidence of colorectal cancer may be strongly affected by dietary patterns of the respective populations. The nature of dietary patterns of specific Indonesia population on the risk of colorectal cancer might differ from previously published data with the global population. Therefore, we conducted a study where the dietary pattern in colorectal cancer patient cohorts was compared to age- and population-matched control. We documented 89 colorectal cancer cases and among 173 individuals from the South Sulawesi population. A series of logistic regression and Fisher's exact tests were utilized to test associations of dietary intakes and colorectal cancer risk as well as colorectal cancer staging. Our data demonstrate that vegetable (p-value = 8.70 × 10-26, OR = 0.49) and fruit (p-value = 7.59x10-5, OR = 0.70) intakes are associated with the reduced risk of colorectal cancer incidence. Conversely, acidic food, reheated food, meat, spicy food, and alcohol are associated with the increment case of cancer. Moreover, meat intake (p-value < 0.01) shows a significant association with cancer staging progression. Common dietary pattern is a determinant aspect to the colorectal cancer incidence as well as its staging progression.

8.
Mymensingh Med J ; 30(1): 224-227, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33397879

RESUMO

Lymphangioma is a rare, benign tumour occurring due to congenital malformation of the lymphatic channels. It occurs due to obstruction in the lymphatic channel and results in lymphangiectasia. The tumour is most commonly encountered in the head and neck regions and almost 90% are in the children below the age of 2 years. Retroperitoneal Lymphangioma in an adult is a rare clinical condition. We have presented a 41 year old female with retroperitoneal lymphangioma who came to Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh on 10 October 2017 with the non-specific complains of upper abdominal discomfort, occasional nausea, vomiting and aorexia for the last 1.5 years. She was managed surgically by exploratory laparotomy followed by de-roofing of the cyst. Histopathological examination of the cyst wall was consistent with lymphangioma.


Assuntos
Cistos , Linfangioma , Adulto , Bangladesh , Criança , Feminino , Humanos , Linfangioma/diagnóstico , Linfangioma/cirurgia , Pescoço , Doenças Raras
9.
Sci Rep ; 10(1): 21445, 2020 Dec 08.
Artigo em Inglês | MEDLINE | ID: mdl-33293584

RESUMO

Growth of polycrystalline CdMnTe ternary compound thin films has been carried out using cathodic electrodeposition technique at different cathodic potentials. The range of the cathodic potentials used in this work has been chosen according to the cyclic voltammogram results. The CdMnTe thin films were electroplated from electrolyte containing CdSO4, TeO2 and MnSO4 in an acidic aqueous medium. Glass/fluorine-doped tin oxide (FTO) substrates have been used to electrodeposit the semiconductor layers. The structural, compositional, morphological, optical and electrical properties of the CdMnTe thin films were studied using X-ray diffraction (XRD), Sputtered neutral-mass spectroscopy (SNMS), Scanning electron microscopy (SEM), UV-Vis spectroscopy and Photo-electro-chemical (PEC) cell measurements respectively. The primarily grown as-deposited (AD) layers went through two different post-growth surface treatment conditions- heat-treated in air in the presence of CdCl2 (CCT) and heat-treated in air in the presence of GaCl3 (GCT). Results from the XRD indicated the polycrystalline nature of the electrodeposited films. The electroplated films have cubic crystal structures and the preferred orientation was found to be along the (111) plane of CdMnTe. Inclusion of Mn has been qualitatively observed using SNMS measurement. The optical energy bandgaps of the thin films were found to be varying between ~ 1.90 and ~ 2.20 eV. Though all the layers after post-treatment showed p-type electrical conduction, both p and n-type conductivity were obtained at different cathodic potentials for as-deposited materials. Comparison of the deposited layers to other electrodeposited ternary compounds has also been discussed.

10.
PeerJ ; 8: e9572, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33194329

RESUMO

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiologic agent of the ongoing pandemic of coronavirus disease 2019 (COVID-19), a public health emergency of international concerns declared by the World Health Organization (WHO). An immuno-informatics approach along with comparative genomics was applied to design a multi-epitope-based peptide vaccine against SARS-CoV-2 combining the antigenic epitopes of the S, M, and E proteins. The tertiary structure was predicted, refined and validated using advanced bioinformatics tools. The candidate vaccine showed an average of ≥90.0% world population coverage for different ethnic groups. Molecular docking and dynamics simulation of the chimeric vaccine with the immune receptors (TLR3 and TLR4) predicted efficient binding. Immune simulation predicted significant primary immune response with increased IgM and secondary immune response with high levels of both IgG1 and IgG2. It also increased the proliferation of T-helper cells and cytotoxic T-cells along with the increased IFN-γ and IL-2 cytokines. The codon optimization and mRNA secondary structure prediction revealed that the chimera is suitable for high-level expression and cloning. Overall, the constructed recombinant chimeric vaccine candidate demonstrated significant potential and can be considered for clinical validation to fight against this global threat, COVID-19.

11.
Front Vet Sci ; 7: 592, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33102548

RESUMO

Foot-and-mouth disease (FMD) is an economically devastating disease of the livestock worldwide and caused by the FMD virus (FMDV), which has seven immunologically distinct serotypes (O, A, Asia1, C, and SAT1-SAT3). Studies suggest that VP2 is relatively conserved among three surface-exposed capsid proteins (VP1-VP3) of FMDV, but the level of conservation has not yet been reported. Here we analyzed the comparative evolutionary divergence of VP2 and VP1 to determine the level of conservation in VP2 at different hierarchical levels of three FMDV serotypes (O, A, and Asia1) currently circulating in Asia through an in-depth computational analysis of 14 compiled datasets and designed a consensus VP2 protein that can be used for the development of a serotype-independent FMDV detection tool. The phylogenetic analysis clearly represented a significant level of conservation in VP2 over VP1 at each subgroup level. The protein variability analysis and mutational study showed the presence of 67.4% invariant amino acids in VP2, with the N-terminal end being highly conserved. Nine inter-serotypically conserved fragments located on VP2 have been identified, among which four sites showed promising antigenicity value and surface exposure. The designed 130 amino acid long consensus VP2 protein possessed six surface-exposed B cell epitopes, which suggests the possible potentiality of the protein for the development of a serotype-independent FMDV detection tool in Asia. Conclusively, this is the first study to report the comparative evolutionary divergence between VP2 and VP1, along with proposing the possible potentiality of a designed protein candidate in serotype-independent FMDV detection.

12.
Mymensingh Med J ; 29(4): 951-955, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33116101

RESUMO

The incidence of visceral pain among caesarean section can be as high as 50% in sub arachnoid block (SAB) in spite adequate sensory block, which requires conversion to general anesthesia. Different types of adjuvant have been used to augment the effect of local anesthetics but their use is limited due to adverse effects. The effect of intrathecal midazolam along with hyperbaric bupivacaine in sub arachnoid block is less known. So this randomized, double blind study was conducted to evaluate the additive effect of 0.4ml midazolam to 0.5% 3ml bupivacaine on sub arachnoid block in scheduled elective caesarean section. This study demonstrated that the addition of intrathecal 0.4ml midazolam to spinal 0.5% bupivacaine kept all the characteristics of block unaffected, furthermore pain score VAS 3.4±1.3 in Group A and 1.8±1.22 in Group B which is statistically significant, the requirement of intraoperative analgesia and also increased the duration of postoperative analgesia that is 130.3±5.4 minute in Group A, 265.1±3.6 minute in Group B and also statistically significant. Therefore addition of 2.0mg midazolam with 0.5% bupivacaine significantly reduces the VAS score, reduces the intraoperative visceral pain and need of analgesia.


Assuntos
Raquianestesia , Anestésicos Locais , Midazolam , Dor Pós-Operatória , Anestésicos Locais/uso terapêutico , Bupivacaína , Cesárea , Método Duplo-Cego , Feminino , Humanos , Injeções Espinhais , Midazolam/uso terapêutico , Dor Pós-Operatória/tratamento farmacológico , Dor Pós-Operatória/prevenção & controle , Gravidez , Estudos Prospectivos
13.
J Med Virol ; 2020 Oct 23.
Artigo em Inglês | MEDLINE | ID: mdl-33095454

RESUMO

The emerged novel coronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has created a global health crisis that warrants an accurate and detailed characterization of the rapidly evolving viral genome for understanding its epidemiology, pathogenesis, and containment. Here, we explored 61,485 sequences of the nucleocapsid (N) protein, a potent diagnostic and prophylactic target, for identifying the mutations to review their roles in real-time polymerase chain reaction based diagnosis and observe consequent impacts. Compared to the Wuhan reference strain, a total of 1034 unique nucleotide mutations were identified in the mutant strains (49.15%, n = 30,221) globally. Of these mutations, 367 occupy primer binding sites including the 3'-end mismatch to the primer-pair of 11 well-characterized primer sets. Noteworthily, CDC (USA) recommended the N2 primer set contained a lower mismatch than the other primer sets. Moreover, 684 amino acid (aa) substitutions were located across 317 (75.66% of total aa) unique positions including 82, 21, and 83 of those in the RNA binding N-terminal domain (NTD), SR-rich region, and C-terminal dimerization domain, respectively. Moreover, 11 in-frame deletions, mostly (n = 10) within the highly flexible linker region, were revealed, and the rest was within the NTD region. Furthermore, we predicted the possible consequence of high-frequency mutations (≥20) and deletions on the tertiary structure of the N protein. Remarkably, we observed that a high frequency (67.94% of mutated sequences) co-occuring mutations (R203K and G204R) destabilized and decreased overall structural flexibility. The N protein of SARS-CoV-2 comprises an average of 1.2 mutations per strain compared to 4.4 and 0.4 in Middle East respiratory syndrome-related coronavirus and SARS-CoV, respectively. Despite being proposed as the alternative target to spike protein for vaccine and therapeutics, the ongoing evolution of the N protein may challenge these endeavors, thus needing further immunoinformatics analyses. Therefore, continuous monitoring is required for tracing the ongoing evolution of the SARS-CoV-2 N protein in prophylactic and diagnostic interventions.

14.
Polymers (Basel) ; 12(9)2020 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-32942521

RESUMO

This research aims to develop multilayer sandwich-structured electrospun nanofiber (ENF) membranes using biodegradable polymers. Hydrophilic regenerated cellulose (RC) and hydrophobic poly (lactic acid) (PLA)-based novel multilayer sandwich-structures were created by electrospinning on various copper collectors, including copper foil and 30-mesh copper gauzes, to modify the surface roughness for tunable wettability. Different collectors yielded various sizes and morphologies of the fabricated ENFs with different levels of surface roughness. Bead-free thicker fibers were collected on foil collectors. The surface roughness of the fine fibers collected on mesh collectors contributed to an increase in hydrophobicity. An RC-based triple-layered structure showed a contact angle of 48.2°, which is comparable to the contact angle of the single-layer cellulosic fabrics (47.0°). The polar shift of RC membranes on the wetting envelope is indicative of the possibility of tuning the wetting behavior by creating multilayer structures. Wettability can be tuned by creating multilayer sandwich structures consisting of RC and PLA. This study provides an important insight into the manipulation of the wetting behavior of polymeric ENFs in multilayer structures for applications including chemical protective clothing.

15.
Sci Rep ; 10(1): 14004, 2020 08 19.
Artigo em Inglês | MEDLINE | ID: mdl-32814791

RESUMO

Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), a novel evolutionary divergent RNA virus, is responsible for the present devastating COVID-19 pandemic. To explore the genomic signatures, we comprehensively analyzed 2,492 complete and/or near-complete genome sequences of SARS-CoV-2 strains reported from across the globe to the GISAID database up to 30 March 2020. Genome-wide annotations revealed 1,516 nucleotide-level variations at different positions throughout the entire genome of SARS-CoV-2. Moreover, nucleotide (nt) deletion analysis found twelve deletion sites throughout the genome other than previously reported deletions at coding sequence of the ORF8 (open reading frame), spike, and ORF7a proteins, specifically in polyprotein ORF1ab (n = 9), ORF10 (n = 1), and 3´-UTR (n = 2). Evidence from the systematic gene-level mutational and protein profile analyses revealed a large number of amino acid (aa) substitutions (n = 744), demonstrating the viral proteins heterogeneous. Notably, residues of receptor-binding domain (RBD) showing crucial interactions with angiotensin-converting enzyme 2 (ACE2) and cross-reacting neutralizing antibody were found to be conserved among the analyzed virus strains, except for replacement of lysine with arginine at 378th position of the cryptic epitope of a Shanghai isolate, hCoV-19/Shanghai/SH0007/2020 (EPI_ISL_416320). Furthermore, our results of the preliminary epidemiological data on SARS-CoV-2 infections revealed that frequency of aa mutations were relatively higher in the SARS-CoV-2 genome sequences of Europe (43.07%) followed by Asia (38.09%), and North America (29.64%) while case fatality rates remained higher in the European temperate countries, such as Italy, Spain, Netherlands, France, England and Belgium. Thus, the present method of genome annotation employed at this early pandemic stage could be a promising tool for monitoring and tracking the continuously evolving pandemic situation, the associated genetic variants, and their implications for the development of effective control and prophylaxis strategies.


Assuntos
Betacoronavirus/classificação , Betacoronavirus/genética , Infecções por Coronavirus/epidemiologia , Heterogeneidade Genética , Genoma Viral/genética , Estudo de Associação Genômica Ampla/métodos , Saúde Global , Pneumonia Viral/epidemiologia , Sequência de Aminoácidos/genética , Anticorpos Neutralizantes/imunologia , Pareamento Incorreto de Bases , Sequência de Bases/genética , Clima , Infecções por Coronavirus/virologia , Humanos , Fases de Leitura Aberta/genética , Pandemias , Peptidil Dipeptidase A/metabolismo , Filogenia , Pneumonia Viral/virologia , Domínios Proteicos/genética , Domínios Proteicos/imunologia , Deleção de Sequência , Glicoproteína da Espícula de Coronavírus/química , Glicoproteína da Espícula de Coronavírus/genética , Glicoproteína da Espícula de Coronavírus/metabolismo
16.
J Biomol Struct Dyn ; : 1-7, 2020 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-32696718

RESUMO

Recent outbreak of novel coronavirus and its rapid pandemic escalation in all over the world has drawn the attention to urgent need for effective drug development. However, due to prolonged vaccine and drug development procedure against a newly emerged devastating SARS-CoV-2 virus pathogen, repurposing of existing potential pertinent drug molecules would be preferable strategy to reduce mortality immediately and further development of new drugs to combat overall global Covid-19 crisis in all over the world. Herein, we have filtered 23 prospective drug candidates through literature review. Assessing evidences from molecular docking studies, it was clearly seen that, Epirubicin, Vapreotida, and Saquinavir exhibited better binding affinity against SARS-CoV-2 Main Protease than other drug molecules among the 23 potential inhibitors. However, 50 ns molecular dynamics simulation indicated the less mobile nature of the docked complex maintaining structural integrity. Our overall prediction findings indicate that Epirubicin, Vapreotida, and Saquinavir may inhibit COVID-19 by synergistic interactions in the active cavity and those results can pave the way in drug discovery although it has to be further validated by in-vitro and in-vivo investigations. Communicated by Ramaswamy H. Sarma.

17.
Animal Model Exp Med ; 3(2): 169-181, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32613176

RESUMO

Background: Curculigo recurvata (C. recurvata) is an enthnomedicinally important herb reported to have significant medicinal values. The present study aimed to explore the in vivo and in silico anti-nociceptive and anti-diarrheal effects of a C. recurvate rhizome methanol extract (Me-RCR). Methods: The analgesic effects of Me-RCR were assessed using acetic acid-induced writhing and the formalin-induced flicking test. The drugs were administered intraperitoneally (IP) at doses of 200 and 400 mg/kg body weight (bw). Anti-diarrheal activity was evaluated by assessing intestinal motility, hypersecretion, and fecal score in mice at oral doses of 200 and 400 mg/kg·bw. Computer facilitated analyses for anti-nociceptive and anti-diarrheal activities of three isolated compounds from C. recurvata were undertaken to identify the best-fit phytoconstituents. Results: The Me-RCR showed significant (P < .05) peripheral anti-nociception at the highest dose. The extract inhibited both early and late phases of nociception in the formalin-induced writhing test. In the castor oil-induced diarrhoea model, the extract significantly (P < .05) prolonged the onset time of diarrhoea, inhibited percentage of diarrhoea, and decreased both the volume and weight of intestinal contents. Rates of intestinal fluid accumulation inhibition were (33.61 ± 1.00)% and (46.44 ± 0.89)% at Me-RCR doses of 200 and 400 mg/kg·bw, respectively. Moreover, a significant (P < .05) reduction in gastrointestinal motility was observed. An absorption, distribution, metabolism, excretion and/or toxicity (ADME/T) test showed that the selected compounds yielded promising results, satisfying Lipinski's rule of five for predicting drug-like potential. Notably, of the three phytoconstituents curculigine and isocurculigine possessed the highest affinity for the COX-1 and COX-2. Isocurculigine was also identified as the most effective anti-diarrheal compound in the computer-facilitated model. Conclusion: An extract of the plant C. recurvata showed potential analgesic and anti-diarrheal activity due to the presence of one or more active secondary metabolite(s).

18.
J Toxicol ; 2020: 2109673, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32508916

RESUMO

Background: Acute poisoning is a common scenario in the emergency department of any general hospital globally, but its pattern may vary in different parts of the world and even may be a different regional variation in the same country. Objective: Our recent study aims to assess the demographic characteristics, psychological aspect, pattern, and treatment outcome in different acute poisoning. Method: The present cross-sectional study was conducted in the medicine department of Jashore Medical College and Hospital from 1st January to 30th June 2018, which recruited 487 eligible cases of admitted acute poisoning patients. Results: The study reveals that the total incidence of acute poisoning in Jashore, Bangladesh, is 17.1 per 100,000 populations over a 6-month period. The mean age of our study population was 27 ± 11 (SD) years with having significant female preponderance in acute poisoning (female: 253/52% and male: 234/48%; p = 0.002). Female subjects were significantly younger than male (p <0.001). Moreover, the total suicidal intension of acute poisoning in our study was 97.3%, whereas the female subjects were more committed to suicidal attempts (p = 0.027). Organophosphorus compounds (OPCs) were the significant leading agents (66.1%, p = 0.029) of acute poisoning, and even, it had been significantly used as suicidal intention of poisoning substance (65.1%, p <0.001) in our observation. Muslim (97.5%, p = 0.005), 10-29 year age group (68.0%, p = 0.002), rural (99.2%), unmarried (51.3%), middle class (50.1%), students (48.9%), and secondary educational background population (76.4%) were more victimized of acute poisoning. Among different factors, familial disharmony constituted of 56.1% cases of suicidal attempt in acute poisoning. Finally, we had observed that the death incidence by acute poisoning in Jashore, Bangladesh, was 1.9 per 100,000 population over a 6-month period. Conclusion: The recent study reveals that there is high incidence of acute poisoning in Jashore, Bangladesh, with a significant amount of death toll. Organophosphorus compound is the most common agent of deliberating self-poisoning in our study due to its easy availability in our agriculture-based community.

19.
J Med Virol ; 2020 Jun 03.
Artigo em Inglês | MEDLINE | ID: mdl-32492206

RESUMO

The novel coronavirus, SARS-CoV-2, has caused the most unfathomable pandemic in the history of humankind. Bangladesh is also a victim of this critical situation. To investigate the genomic features of the pathogen from Bangladesh, the first complete genome of the virus has very recently been published. Therefore, long-awaited questions regarding the possible origin and typing of the strain(s) can now be answered. Here, we endeavor to mainly discuss the published reports or online-accessed data (results) regarding those issues and present a comprehensive picture of the typing of the virus alongside the probable origin of the subclade containing the Bangladeshi strain. Our observation suggested that this strain might have originated from the United Kingdom or the other European countries epidemiologically linked to the United Kingdom. According to different genotyping classification schemes, this strain belongs to the A2a clade under the G major clade, is of B and/or L type, and is a SARS-CoV-2a substrain. In the future, randomized genomic data will certainly increase in Bangladesh, however because of globalization and immigrant movement, we urgently need a mass regional sequencing approach targeting the partial or complete genome that can link the epidemiological data and may help in further clinical intervention.

20.
Arch Virol ; 165(9): 2119-2122, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32591914

RESUMO

One of the six sublineages of the dominant O/ME-SA/Ind2001 lineage of foot-and-mouth disease virus (FMDV), Ind2001BD1 has already spread throughout 14 countries, including Bangladesh. Here, we report the complete genome sequence of the potential serotype O vaccine strain BAN/TA/Dh-301/2016, which has been shown to provide protection against all the circulating serotype O viruses in Bangladesh. The viral genome is 8,211 nucleotide (nt) long with an open reading frame (ORF) of 6999 nt. The ORF is flanked by a 1098-nt-long 5'-UTR and a 114-nt-long 3'-UTR. Compared to the Indian FMDV serotype O vaccine strain O/India/R2/75 (AF204276), ten mutations were identified in the major antigenic sites of BAN/TA/Dh-301/2016 (MK088170.1).


Assuntos
Vírus da Febre Aftosa/genética , Febre Aftosa/virologia , Genoma Viral , Animais , Bangladesh , Sequência de Bases , Bovinos , Doenças dos Bovinos/virologia , Vírus da Febre Aftosa/classificação , Vírus da Febre Aftosa/imunologia , Vírus da Febre Aftosa/isolamento & purificação , Mutação , Fases de Leitura Aberta , Proteínas Virais/genética , Proteínas Virais/imunologia , Vacinas Virais/genética , Sequenciamento Completo do Genoma
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