Efficacy of Andrographis paniculata against extended spectrum β-lactamase (ESBL) producing E. coli

Abstract Background A. paniculata is widely known for its medicinal values and is traditionally used to treat a wide range of diseases such as cancer, diabetes, skin infections, influenza, diarrhoea, etc. The phytochemical constituents of this plant possess unique and interesting biological activities. The main focus of this study was to evaluate the antibacterial property of crude ethyl acetate (CEA) extract of A. paniculata against E. coli clinical isolates along with molecular docking of 10 different bioactive components from this plant with CTX-M-15. Methods CEA extract was subjected to phytochemical and FTIR analysis. The E. coli isolates were tested for antibiotic susceptibility through disk-diffusion method to observe their resistance pattern towards different antibiotics. Antibacterial activity and biofilm assay were performed through broth microdilution using a 96-well microplate. CEA extract was further utilized to observe its effect on the expression of a gene encoding CTX-M-15. Finally, in-silico studies were performed where 10 different bioactive compounds from A. paniculata were molecularly docked with CTX-M-15. Results Phytochemical and FTIR analysis detected the presence of various secondary metabolites and functional groups in CEA extract respectively. Molecular docking provided the number of residues and bond lengths together with a positive docking score. Antibiotic susceptibility showed the multi-drug resistance of all the clinical strains of E. coli. The antibacterial and antibiofilm efficiency of CEA extract (25, 50 and 100 μg/ml) was tested and 100 μg/ml of the extract was more effective in all the strains of E. coli. All 3 ESBL producing strains of E. coli were subjected to gene expression analysis through PCR. Strains treated with 100 μg/ml of the extract showed a downregulation of the gene encoding CTX-M-15 compared to untreated controls. Conclusions The utilization of CEA extract of A. paniculata proved an economical way of controlling the growth and biofilm formation of ESBL strains of E. coli. CEA extract was also able to downregulate the expression of a gene encoding CTX-M-15. Molecular docking of 10 different bioactive compounds from A. paniculata with CTX-M-15 provided the residues and bond lengths with a positive docking score

Water, sanitation and hygiene (WASH) practices and deworming improve nutritional status and anemia of unmarried adolescent girls in rural Bangladesh

Abstract Background In Bangladesh, undernutrition and anemia are more occurrent among adolescent girls. BRAC, the largest non-governmental organization (NGO), has been implementing a community-based nutrition education service package targeting adolescent girls for reducing their undernutrition and anemia. Objective We aimed to explore the underlying factors associated with nutritional status and anemia among adolescent girls under the BRAC nutrition program areas to improve their existing intervention package. Methodology We conducted a cross-sectional and comparative study in 2016, in 24 upazilas of Bogra, Barguna, Comilla, Dinajpur, Feni, Jessore, and Meherpur districts where the BRAC nutrition program was implemented while the remaining 27 upazilas of those districts were selected as comparison area. We followed a multistage cluster random sampling for selecting 1620 unmarried adolescent girls aged 10–19 years for interviewing in the intervention and comparison areas. Data were collected on socio-demographic information, dietary intake, morbidity, water, sanitation, and hygiene (WASH) practice, anthropometry, and serum hemoglobin (Hb) level by using a pre-structured questionnaire. The nutritional status of the adolescent girls was expressed as height-for-age Z (HAZ) and body mass index-for-age Z (BMIZ) score, while anemia referred to the serum Hb at the level of below 12 g/dl for adolescent girls. All statistical analyses were done in STATA version 17 (Chicago Inc.). Findings The prevalence of stunting (22.9% vs. 22.5%), thinness (12% vs. 14%), and anemia (34.5% vs. 37.3%) exhibited similarities between the intervention and comparison regions. Stunting and thinness were predictors for each other for this population group. Our findings indicated that adolescent girls who were not washing hands with soap after defecation were likely to be stunted [AOR 1.51 (95% CI 1.12–2.04)], and who did not utilize sanitary latrines had an increased likelihood of being thin [AOR 2.38 (95% CI 1.11–5.08)]. Conversely, those who did not watch television [AOR 1.69 (95% CI 1.12–2.56)] and did not have deworming tablets [AOR 1.33 (95% CI 1.07–1.64)] in the 6 months leading up to the interview had a 69% and 33% higher probability of being anemic, respectively. Conclusion For sustainable improvement in the undernutrition and anemia of adolescent girls, integration of WASH, consistent administration of deworming tablets and broadcasting awareness programs through television are urgent to scale up the nutrition intervention programs in similar settings like Bangladesh

Prevention of social exclusion and role of antenatal care by BRAC community health workers in improving safe motherhood and neonatal care in urban slums of Bangladesh.

The transformation of the BRAC MANOSHI programme from humanitarian to a social enterprise model, has made it increasingly urgent to enumerate the minimum number of door-to-door antenatal care (ANC) visits by community health workers (CHWs), for the purpose of effectively improving facility delivery. Thus prevent social exclusion of poor slum communities in Bangladesh with regard to safe motherhood and essential newborn care (ENC). This cross-sectional study was conducted, during March-July, 2015 in slums of Chittagong, Dhaka and Sylhet city corporations of Bangladesh. A census was conducted among 25,700 households covering 10 branch offices of MANOSHI to identify women with a delivery outcome in the preceding three years of the survey. A total of 1100 respondents were interviewed randomly through a structured questionnaire. These women were stratified into three categories-1, 2 & 3, consisting of 497, 205 and 398 women respectively. Women in category-1 did not receive any ANC checkup from the BRAC CHWs, while women in category-2 and category-3 received one to three and ≥four ANC checkups from BRAC CHWs respectively. Data was analysed using STATA Version 13 (Chicago Inc.). Findings revealed that women, who received ≥four ANC checkups from BRAC CHWs, are 25% more likely to avail facility delivery [adjusted Prevalence Ratio (aPR) 1.25; 95% confidence interval (CI) (1.01-1.54)] compared to the women who did not receive any ANC from BRAC CHWs. Women in category-2 [aPR3.64; 95% CI (1.76-7.54)] and in category-3 [aPR5.92; 95% CI (3.04-11.53)] respectively had four and six folds higher tendency to receive postnatal care (PNC) within 48 hours after delivery. Furthermore, facility delivery improved PNC assisted by medically trained providers (MTPs) within 48 hours after delivery and ENC in both categories 2 & 3. The evidence shows that at least four ANC visits of BRAC CHWs can increase institutional delivery, and which can further facilitate PNC and ENC visits. At present, the BRAC MANOSHI programme needs to implement feasible strategies to include pregnant women in the slums in receiving at least four ANC checkups by BRAC CHWs for ensuring safe motherhood and newborn care

Antenatal Care (ANC) practices by the respondents.

<p>Antenatal Care (ANC) practices by the respondents.</p

Association between indicators and its predictors.

<p>Association between indicators and its predictors.</p

Sampling and randomization for selecting the respondents.

<p>Sampling and randomization for selecting the respondents.</p

Delivery care and Postnatal Care (PNC) practice by the respondents.

<p>Delivery care and Postnatal Care (PNC) practice by the respondents.</p

Unravelling the enigma of siRNA and aptamer mediated therapies against pancreatic cancer

Abstract Pancreatic cancer (PC) is a fatal disease that has a poor 5-year survival rate. The poor prognosis can be attributed to both troublesome detections at the initial stage, which makes the majority of the treatment options largely unsuccessful and leads to extensive metastasis, as well as to its distinct pathophysiological characteristics, such as rich desmoplastic tumours bounded by dysplastic and hypo perfused vessels restricting the mobility of therapeutic agents. Continued attempts have been made to utilise innovative measures for battling PC to increase the therapeutic effectiveness of therapies and overcome their cytotoxicity. Combined cancer targeting and gene silencing approach has shown improved outcomes in patients’ survival rates and quality of life, offering a potential solution to therapeutic complications. It particularly targets various barriers to alleviate delivery problems and diminish tumour recurrence and metastasis. While aptamers, a type of single-stranded nucleic acids with strong binding affinity and specificity to target molecules, have recently surfaced as a viable PC strategy, siRNA can interfere with the expression of certain genes. By concurrently suppressing genes and boosting targeted approach, the cocktail of siRNA/Aptamer and other therapeutic drugs can circumvent the multi-drug resistance phenomena. Additionally, combination therapy with additive or synergistic effects can considerably increase the therapeutic efficacy of anti-cancer medications. This study outlines the primary difficulties in treating PC, along with recent developments in siRNA/Aptamer mediated drug delivery to solve the major hiccup of oncology field. Graphical Abstrac